Return to ChangeLog.5 CVS log

Up to [Apple XNU] / GNUtools / cc

Annotation of GNUtools/cc/ChangeLog.5, revision 1.1

1.1     ! root        1: Sun Jun 14 16:30:07 1992  Richard Stallman  ([email protected])
        !             2: 
        !             3:        * Version 2.2.2 released.
        !             4: 
        !             5:        * Makefile.in (gcc.xtar.Z): Don't give up if texinfo files not updated.
        !             6:        Just sleep to emphasize the message.
        !             7: 
        !             8:        * i860.h (PREFERRED_RELOAD_CLASS): Avoid f regs for HI and QI if poss.
        !             9: 
        !            10:        * protoize.c: Don't include wait.h.
        !            11:        (gen_aux_info_file): Test wait_status as in gcc.c.
        !            12:        Report fatal signals explicitly.  Report exit status.
        !            13:        * xm-next.h (wait): Definition deleted.
        !            14: 
        !            15:        * sparc.c (print_operand): In `r' case, recognize any kind of zero.
        !            16: 
        !            17: Sat Jun 13 02:51:10 1992  Richard Stallman  ([email protected])
        !            18: 
        !            19:        * va-sparc.h (va_arg): Handle all 8-byte types, not just double.
        !            20: 
        !            21: Fri Jun 12 23:40:41 1992  Richard Stallman  ([email protected])
        !            22: 
        !            23:        * i860v4.h (ASM_OUTPUT_DOUBLE, ASM_OUTPUT_FLOAT):
        !            24:        Use `e' format, not `g' format.
        !            25: 
        !            26: Fri Jun 12 12:52:48 1992  Tim Moore  (moore at fast.cs.utah.edu)
        !            27: 
        !            28:        * pa.md (absdf2): Fix bug in output template.
        !            29: 
        !            30: Fri Jun 12 10:25:25 1992  Jim Wilson  ([email protected])
        !            31: 
        !            32:        * ultrix.h (WCHAR_*):  Set to correct values.
        !            33: 
        !            34: Fri Jun 12 10:07:43 1992  Michael Meissner  ([email protected])
        !            35: 
        !            36:        * x-mips, x-mipsv, x-decstatn, x-iris (OLDCC): Add -Olimit 3000 to
        !            37:        bump the number of basic blocks that the MIPS compiler handles, so
        !            38:        that it doesn't issue warning messages saying to bump the limit.
        !            39:        Move the -O1 option here from X_CFLAGS, so that it doesn't
        !            40:        get passed when bootstraping.
        !            41:        (X_CFLAGS): Delete.
        !            42: 
        !            43: Thu Jun 11 15:08:01 1992  Richard Stallman  ([email protected])
        !            44: 
        !            45:        * sparc.h (RETURN_IN_MEMORY): Do nothing for structs and unions.
        !            46:        (EXTRA_CONSTRAINT): During reload, accept pseudo reg for Q.
        !            47: 
        !            48:        * va-sparc.h (va_arg): Handle unaligned doubles.
        !            49: 
        !            50:        * fixincludes: Fix return type of `free' in malloc.h.
        !            51:        Recognize #define.NULL only at start of line.
        !            52:        In sys/types.h, find size_t only in a typedef.
        !            53:        In netdnet/dnetdb.h, don't add semicolon in wrong place.
        !            54: 
        !            55:        * configure: Set use_collect2 to empty rather than unsetting.
        !            56: 
        !            57:        * gstddef.h (__need_wchar_t): Fix typo in #undef.
        !            58: 
        !            59: Wed Jun 10 04:30:01 1992  Richard Stallman  ([email protected])
        !            60: 
        !            61:        * gcc.c (process_command): In gcc_exec_prefix, machine precedes vers.
        !            62: 
        !            63:        * i386sco4.h (CPP_SPEC): Don't redefine __STDC__.
        !            64:        fixincludes knows how to fix the conditionals in system headers.
        !            65: 
        !            66:        * collect2.c (scan_prog_file): Initialize ldptr.
        !            67: 
        !            68:        * dbxout.c (dbxout_symbol): Make tag precede typedef.
        !            69: 
        !            70:        * configure: Initialize host, host_xm_file, host_xmake_file,
        !            71:        host_broken_install, and broken_install.
        !            72: 
        !            73:        * Makefile.in (enquire.o): Add `./' when removing enquire.c.
        !            74: 
        !            75: Tue Jun  9 20:52:05 1992  Richard Stallman  ([email protected])
        !            76: 
        !            77:        * Version 2.2.1 released.
        !            78: 
        !            79:        * Makefile.in (clean): Don't delete unprotoize.c.
        !            80: 
        !            81:        * configure: Fix typo in modifying INSTALL variable in Makefile.
        !            82: 
        !            83: Mon Jun  8 15:14:09 1992  Richard Stallman  ([email protected])
        !            84: 
        !            85:        * Version 2.2 released.
        !            86: 
        !            87:        * Makefile.in (extraclean): Delete *.rej and *.orig under config.
        !            88:        Delete *.xtar.
        !            89:        (dist): Update README *before* making tar file.
        !            90:        Fix quoting of error message about gcc.texi; exit if that test fails.
        !            91:        Don't print error messages from ln.
        !            92: 
        !            93:        * assert.h [__cplusplus]: Use `extern "C"' around __eprintf decl.
        !            94: 
        !            95:        * configure (rs6000-*-mach*, pyramid-*-*, mips-sgi-*):
        !            96:        Patterns made canonical.
        !            97:        (rs6000-*-mach*): Fix typo in `xmake_file'.
        !            98: 
        !            99:        * configure (i386-*-osfrose*): Renamed from i386-osfrose*.
        !           100: 
        !           101:        * Makefile.in (.NOEXPORT): Moved after `all'.
        !           102:        Comments put on separate lines.
        !           103: 
        !           104: Mon Jun  8 18:33:01 1992  Michael Meissner  ([email protected])
        !           105: 
        !           106:        * configure (mips-dec-osf*): Set xmake_file to x-mips.
        !           107: 
        !           108: Sun Jun  7 15:55:34 1992  Richard Stallman  ([email protected])
        !           109: 
        !           110:        * gcc.c (set_spec): Fix braino in "appending" spec values.
        !           111: 
        !           112:        * integrate.c (expand_inline_function): Fix dumb bug in last change.
        !           113: 
        !           114: Sun Jun  7 07:16:25 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           115: 
        !           116:        * romp.md: Disable two more define_splits during the first sched
        !           117:        pass until long-standing sched.c bug is fixed.          
        !           118: 
        !           119: Thu Jun  4 16:49:56 1992  Jim Wilson  ([email protected])
        !           120: 
        !           121:        * reorg.c (dbr_schedule): Global registers are needed at function end.
        !           122: 
        !           123: Sat Jun  6 17:07:16 1992  Torbjorn Granlund  (tege at david.ultra.nyu.edu)
        !           124: 
        !           125:        * pyr.md (shift patterns): Declare output_shift.
        !           126:        (movdi, movdf): Declare output_move_double.
        !           127: 
        !           128: Sat Jun  6 15:07:11 1992  Richard Stallman  ([email protected])
        !           129: 
        !           130:        * Makefile.in (c-parse.o): Depend on c-parse.h.
        !           131: 
        !           132:        * reload.c (find_reloads): Fix typo in format string.
        !           133: 
        !           134:        * mips.c (override_options): BSD 4.3 does line buffering differently.
        !           135: 
        !           136:        * Makefile.in (SYSCALLS.c.X): Put GCC output in file, not /dev/null.
        !           137:        (mostlyclean): Delete temp file.
        !           138: 
        !           139:        * configure (handling broken_install): Add -c option.
        !           140: 
        !           141: Sat Jun  6 11:34:00 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !           142: 
        !           143:        * gstdarg.h (va_arg): Fix typo incrementing AP.
        !           144: 
        !           145: Sat Jun  6 16:27:18 1992  Michael Meissner  ([email protected])
        !           146: 
        !           147:        * mips-n5.h, mips-sysv.h: Include sys/param.h, not types.h.
        !           148: 
        !           149: Fri Jun  5 19:00:36 1992  Howard Chu  ([email protected])
        !           150: 
        !           151:        * fx2800.h (ASM_OUTPUT_FUNCTION_PREFIX): Output a nop before
        !           152:        every function, to accomodate tdescs.  Also, save function
        !           153:        name in current_function_original_name for use in i860.c.
        !           154:        Also define OUTPUT_TDESC to get ABI-compliant tdesc info
        !           155:        generated for each function.
        !           156: 
        !           157:        * i860.c (function_epilogue): Add code to output tdesc info
        !           158:        after each function.  Tdesc structure versions 1-4 are
        !           159:        supported.
        !           160: 
        !           161:        * i860v4.h (ASM_FILE_END) [OUTPUT_TDESC]: Output a null tdesc entry
        !           162:        after the last function in a file.
        !           163: 
        !           164: Fri Jun  5 19:03:22 1992  Richard Stallman  ([email protected])
        !           165: 
        !           166:        * collect2.c (main, scan_prog_file): Use bcopy, not memcpy.
        !           167: 
        !           168: Fri Jun  5 16:27:18 1992  Michael Meissner  ([email protected])
        !           169: 
        !           170:        * mips.h, mips.c, mips.md: Undo June 3 changes.
        !           171: 
        !           172:        * mips-n5.h, mips-sysv.h (getpagesize): If _SC_PAGE_SIZE is undefined,
        !           173:        use NBPC defined in sys/types.h.
        !           174: 
        !           175: Thu Jun  4 14:36:43 1992  Richard Stallman  ([email protected])
        !           176: 
        !           177:        * cse.c (delete_dead_from_cse): Don't delete anything inside a libcall.
        !           178: 
        !           179:        * Makefile.in (install-libgcc): Depend on install-dir.
        !           180: 
        !           181:        * c-lex.c (yylex): Suppress int out of range warning if -traditional.
        !           182: 
        !           183: Thu Jun  4 23:34:05 1992  Howard Chu  ([email protected])
        !           184: 
        !           185:        * fx2800.h (DBX_OUTPUT_ENUM): Add missing argument, add a
        !           186:        missing semi-colon.
        !           187:        (ASM_OUTPUT_DOUBLE): undef definition from i860v4.h, replace
        !           188:        with definition used in i860.h.
        !           189:        (ASM_OUTPUT_FLOAT): same as above
        !           190:        Also undef MD_EXEC_PREFIX which is defined in i860v4.h.
        !           191:        Also define I860_STRICT_ABI_PROLOGUES for ABI-compliant function
        !           192:        prologues.
        !           193: 
        !           194: Thu Jun  4 13:15:30 1992  Jim Wilson  ([email protected])
        !           195: 
        !           196:        * enquire.c (fake_f_rep): Use __extension__ to avoid pedantic warnings.
        !           197: 
        !           198:        * cse.c (cse_process_notes): Don't stick VOIDmode into *_extract.
        !           199: 
        !           200:        * c-decl.c (get_parm_info): For forward parm decls, check for
        !           201:        non-parm before checking TREE_ASM_WRITTEN.
        !           202: 
        !           203: Thu Jun  4 13:57:47 1992  Tim Moore  (moore at defmacro.cs.utah.edu)
        !           204: 
        !           205:        * pa.h (reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS): Delete
        !           206:        FP_OR_SNAKE_FP_REGS (useless), add GENERAL_OR_FP_REGS,
        !           207:        GENERAL_OR_SNAKE_FP_REGS.
        !           208:        (ASM_DECLARE_FUNCTION_NAME): Handle DImode arguments correctly.
        !           209:        (PROFILE_BEFORE_PROLOGUE, FUNCTION_PROFILER): Do the same thing
        !           210:        for BSD and HPUX.
        !           211:        
        !           212:        * pa.c (output_function_prologue): Do profiling right (compatible
        !           213:        with HPUX).
        !           214:        (output_arg_descriptor): Handle DImode argument registers.
        !           215: 
        !           216: Thu Jun  4 13:48:24 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           217: 
        !           218:         * reload1.c (reload): Count reload register used by caller-save
        !           219:         handling in any basic block that contains a CALL_INSN.
        !           220: 
        !           221: Thu Jun  4 09:23:19 1992  Ron Guilmette  (rfg at ncd.com)
        !           222: 
        !           223:        * i860v4.h (ASM_OUTPUT_DOUBLE, ASM_OUTPUT_FLOAT):  Remove leading 0r.
        !           224:        (ASM_OUTPUT_FLOAT):  Use .float (not .single).
        !           225: 
        !           226: Fri Jun  5 14:58:43 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           227: 
        !           228:        * pyr.h (REGNO_OK_FOR_{INDEX,BASE}): Correctly test reg_renumber.
        !           229:        * configure (pyramid): Turn it back on.
        !           230: 
        !           231: Thu Jun  4 11:26:55 1992  Torbjorn Granlund  ([email protected])
        !           232: 
        !           233:        * pa.c (output_move_double): Handle overlapping moves between
        !           234:        registers.
        !           235: 
        !           236: Wed Jun  3 22:08:18 1992  Richard Stallman  ([email protected])
        !           237: 
        !           238:        * fold-const.c (fold, NOP_EXPR case): Don't drop intermediate in
        !           239:        (unsigned int) (unsigned short) char-variable.
        !           240: 
        !           241: Wed Jun  3 11:18:43 1992  Ron Guilmette  (rfg at ncd.com)
        !           242: 
        !           243:        * stdarg.h (va_arg):  Use casts to avoid doing (pedantically invalid)
        !           244:        arithmetic on `void *' values when __svr4__ is defined.
        !           245: 
        !           246: Wed Jun  3 17:51:21 1992  Torbjorn Granlund  ([email protected])
        !           247: 
        !           248:        * longlong.h (sparc): Test symbol __sparcv8__ for sparc.h conformance.
        !           249: 
        !           250: Wed Jun  3 16:22:38 1992  Jim Wilson  ([email protected])
        !           251: 
        !           252:        * sparc.c (print_operand): Correct typo.
        !           253:        (sparc_type_code): Correctly handle C int and float types.
        !           254: 
        !           255:        * sparc.h (CONSTANT_ALIGNMENT): Align strings to 8 byte boundary.
        !           256:        (DATA_ALIGNMENT): Likewise for character arrays.
        !           257: 
        !           258:        * i960.c (function_prologue): Fixed calculation of offsets for
        !           259:        compiler's register save area.
        !           260: 
        !           261:        * sparc.md (mulsi3,mulsidi3,umulsidi3,divsi3,udivsi3): Patterns
        !           262:        added to support V8 sparc architectures.
        !           263:        * sparc.h (TARGET_DEFAULTS): Add -mv8 and -msparclite options.
        !           264: 
        !           265:        * reload1.c (reload): If can't satisfy reload for a group of more
        !           266:        than two registers, then abort to avoid an infinite loop.
        !           267:        (count_possible_groups): Skip to last reg of group, not first reg
        !           268:        of next group.
        !           269: 
        !           270: Wed Jun  3 14:35:00 1992  Tom Wood  (wood at gen-rtx)
        !           271: 
        !           272:        * c-lex.c (yylex): Let skip_white_space handle \r.
        !           273: 
        !           274:        * expr.c (expand_builtin, fsqrt case): Stabilize the argument in
        !           275:        case a library call is done.
        !           276: 
        !           277:        * final.c (final_scan_insn): Function begin, and block begin/end
        !           278:        notes are "real" in that they depend on the current line number.
        !           279: 
        !           280: Wed Jun  3 14:34:28 1992  Michael Meissner  ([email protected])
        !           281: 
        !           282:        * mips.md (andsi3_internal2): Fix typo in previous change, to
        !           283:        use %3, the clobbered register, instead of %@, the assembler
        !           284:        temporary.
        !           285:        (iorsi3_internal2): Ditto.
        !           286:        (xorsi3_internal2): Ditto.
        !           287: 
        !           288:        * mips.h (MIPS_VERSION): Bump Meissner version # to 20.
        !           289:        (final_prescan_insn): Add declaration.
        !           290:        (lui_int): Add declaration.
        !           291:        (FINAL_PRESCAN_INSN): Just call final_prescan_insn.
        !           292: 
        !           293:        * mips.c (lui_int): New function, return true if value fits in a
        !           294:        LUI instruction.
        !           295:        (final_prescan_insn): Move the checking for filling the delay
        !           296:        slots here from the FINAL_PRESCAN_INSN macro.  If the safe
        !           297:        attribute is set, we do not need a NOP to fill a load delay slot.
        !           298: 
        !           299:        * mips.md (safe attribute): New attribute to indicate that the
        !           300:        current insn is safe to fill a delay slot even if the register
        !           301:        operand(s) are set in the load instruction which has the delay
        !           302:        slot.  This is for and/ior/xor expansions that have a large
        !           303:        constant integer as operand[2].  The load of the constant can
        !           304:        overlap the load.
        !           305:        (andsi3, iorsi3, xorsi3): Replace logical define_insn's with
        !           306:        define_expand's that either map directly to the hardware
        !           307:        instruction, or have a clobbered register to load the large
        !           308:        constant into.  This is instead of using $1 to hold the
        !           309:        intermeidate value.  Set the safe attribute to yes for the cases
        !           310:        where we need to load the integer.  Add define_split's to break
        !           311:        the large logical operations into the separate pieces.
        !           312: 
        !           313: Wed Jun  3 00:00:36 1992  Richard Stallman  ([email protected])
        !           314: 
        !           315:        * cccp.c (do_warning): Do just a warning, not an error.
        !           316: 
        !           317: Tue Jun  2 17:30:09 1992  Richard Stallman  ([email protected])
        !           318: 
        !           319:        * cse.c (cse_basic_block): When a jump becomes unconditional, 
        !           320:        check whether this caused TO to be deleted.
        !           321: 
        !           322: Tue Jun  2 16:11:42 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           323: 
        !           324:         * combine.c (subst, case IF_THEN_ELSE): Don't try reversing
        !           325:         something that isn't a comparison.
        !           326: 
        !           327: Tue Jun  2 16:50:47 1992  Jim Wilson  ([email protected])
        !           328: 
        !           329:        * cccp.c (do_pragma): Don't warn about #pragma once if used in a
        !           330:        system header file.
        !           331: 
        !           332: Tue Jun  2 15:21:07 1992  Michael Meissner  ([email protected])
        !           333: 
        !           334:        * mips.h (MIPS_VERSION): Bump Meissner version # to 19.
        !           335:        (ASM_OUTPUT_DOUBLE): Call mips_output_double.
        !           336:        (ASM_OUTPUT_FLOAT): Call mips_output_float.
        !           337: 
        !           338:        * mips.c (mips_output_double): If REAL_VALUE_TO_TARGET_DOUBLE is
        !           339:        defined, use it to split the floating point value into 2 long
        !           340:        integers, and print them out in hex.  Otherwise use .double.
        !           341:        (mips_output_float): If REAL_VALUE_TO_TARGET_FLOAT is defined, use
        !           342:        it to split the floating point value into a long integer, and
        !           343:        print in out in hex.  Otherwise use .float.
        !           344: 
        !           345:        * dec-osf1.h (new file): Config file for DEC's offical OSF/1
        !           346:        product (as opposed to the OSF/1 reference port from OSF).
        !           347: 
        !           348:        * configure: Support mips-dec-osf1 target.
        !           349:        * config.sub: Support mips-dec-osf1 target.
        !           350: 
        !           351:        * decstatn.h (CPP_PREDEFINES): If CPP_PREDEFINES is defined, don't
        !           352:        supply another definition.  Also, define _SYSTYPE_BSD.
        !           353: 
        !           354: Mon Jun  1 00:04:01 1992  Ron Guilmette  (rfg at ncd.com)
        !           355: 
        !           356:        * gstdarg.h (va_list) [__svr4__]:  Typedef it to `void *'.
        !           357:        * va-sparc.h (__va___list) [__svr4__]:  Typedef this as `void *'.
        !           358: 
        !           359: Sun May 31 15:26:32 1992  John F Carr  (jfc at Achates.mit.edu)
        !           360: 
        !           361:        * calls.c (stack_arg_under_construction): New variable.
        !           362:        (store_one_arg): Set stack_arg_under_construction before calling
        !           363:        expand_expr if expand_expr might call a constructor to initialize
        !           364:        a stack argument.
        !           365:        (expand_call): Push the stack around function calls if
        !           366:        stack_arg_under_construction is nonzero.
        !           367:        Also copy structure_value_addr in that case.
        !           368:        Push the stack around an inline function if it makes calls
        !           369:        and there are outgoing arguments on the stack which must be preserved.
        !           370:        Move the call to expand_cleanups_to before that.
        !           371:        Do this stack adjustment before computing argument locations.
        !           372: 
        !           373: Sun May 31 01:03:51 1992  Richard Stallman  ([email protected])
        !           374: 
        !           375:        * sdbout.c (sdbout_symbol): Test DECL_IGNORED_P only for
        !           376:        variables and types.
        !           377:        * dwarfout.c (output_decl): Never ignore a FUNCTION_DECL
        !           378:        even if DECL_IGNORED_P is set.
        !           379: 
        !           380: Sat May 30 07:07:55 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           381: 
        !           382:        * rs6000.h, romp.h (FUNCTION_ARG): Fix typo in last change.
        !           383: 
        !           384:        * combine.c (subst, significant_bits, simplify_comparison):
        !           385:        Only look at STORE_FLAG_VALUE if comparison result is integer.
        !           386: 
        !           387: Fri May 29 18:04:45 1992  Ron Guilmette (rfg at ncd.com)
        !           388: 
        !           389:         * dwarfout.c (output_decl):  Moved test for ERROR_MARK node out of
        !           390:        switch statement and added a test for DECL_IGNORED_P after that.
        !           391:         (dwarfout_file_scope_decl):  Check input node to see if it is an
        !           392:         ERROR_MARK before checking for DECL_IGNORED_P.  Also makes sure that
        !           393:         any node marked as DECL_IGNORED_P isn't also a function definition.
        !           394: 
        !           395: Fri May 29 14:46:06 1992  Richard Stallman  ([email protected])
        !           396: 
        !           397:        * integrate.c (expand_inline_function):
        !           398:        Don't discard setting return value from a volatile source.
        !           399: 
        !           400:        * c-decl.c (init_decl_processing): If traditional, strlen returns int.
        !           401:        (sizet_ftype_string): Deleted.
        !           402: 
        !           403:        * expr.c (expand_builtin, fsqrt case): Return proper mode if arg error.
        !           404: 
        !           405: Fri May 29 13:36:32 1992  Tom Wood  ([email protected])
        !           406: 
        !           407:        * m88k.c (m88k_builtin_saveregs): Don't copy result to a register.
        !           408: 
        !           409:        * m88k.h (FIXED_REGISTERS): Allow use of r1.
        !           410:        (REG_LEAF_ALLOC_ORDER): Choose r1 last.
        !           411:        (REG_ALLOC_ORDER): Choose r1 before any preserve register.
        !           412:        (ORDER_REGS_FOR_LOCAL_ALLOC): Switch between orderings.
        !           413:        * m88k.c (m88k_layout_frame): Save r30 when used as an ordinary
        !           414:        register.
        !           415: 
        !           416:        * m88k.h (CHECK_FLOAT_VALUE): Delete, not needed.
        !           417:        * m88k.c (check_float_value): Delete, not needed.
        !           418: 
        !           419:        * m88k.c (mostly_false_jump): Fix return check.
        !           420: 
        !           421:        * m88k.md (mstore type): Delete.
        !           422:        (return, indirect_jump): These are jumps, not branches.
        !           423:        * m88k.c (eligible_for_epilogue_delay): No TYPE_MSTORE insns.
        !           424: 
        !           425: Fri May 29 12:33:21 1992  Richard Stallman  ([email protected])
        !           426: 
        !           427:        * reload1.c (emit_reload_insns): Add missing arg to gen_input_reload.
        !           428: 
        !           429: Fri May 29 06:43:15 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           430: 
        !           431:        * rs6000.h, romp.h (FUNCTION_ARG): Don't put variable-sized
        !           432:        operands in registers.
        !           433: 
        !           434:        * explow.c (emit_stack_{save,restore}): Don't call validize_mem
        !           435:        on a null rtx.
        !           436: 
        !           437:        * cse.c (cse_insn): Don't call canon_reg on entry from
        !           438:        hash table; instead, call it after we did the substitution.
        !           439: 
        !           440: Thu May 28 18:47:00 1992  Richard Stallman  ([email protected])
        !           441: 
        !           442:        * fixincludes (malloc.h): Allow space or tab btwn typedef and char.
        !           443: 
        !           444: Thu May 28 17:35:37 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           445: 
        !           446:        * reload1.c (reload_as_needed): Properly disable optional reload
        !           447:        that we can't do.
        !           448:        Don't abort if disabled reload uses a register we don't have.
        !           449: 
        !           450: Thu May 28 14:43:01 1992  Richard Stallman  ([email protected])
        !           451: 
        !           452:        * next.c (get_directive_line): Declare it.
        !           453: 
        !           454:        * defaults.h (ASM_OUTPUT_ASCII): Use unsigned chars.
        !           455: 
        !           456:        * i860v4.h, i386v4.h, sparcv4.h (ASM_OUTPUT_FLOAT, ASM_OUTPUT_DOUBLE):
        !           457:        Use the override definitions only if word order matches host.
        !           458: 
        !           459: Wed May 27 17:32:36 1992  Jim Wilson  ([email protected])
        !           460: 
        !           461:        * unroll.c (find_splittable_givs): When completely unrolling loop,
        !           462:        precompute giv value into a reg before loop if it is complex.
        !           463: 
        !           464:        * sparc.c (singlemove_string): Handle SFmode CONST_DOUBLE.
        !           465:        * sparc.h (PREFERRED_RELOAD_CLASS): Don't allow reloads of
        !           466:        constants to FP registers, nor reloads of FP constants that won't
        !           467:        match the 'E' constraint.
        !           468:        * sparc.md (movsf-1): Add pattern to efficiently handle SFmode
        !           469:        constants.
        !           470: 
        !           471:        * sparc.md (lo_sum:DI pattern): Use constraint "0" for operand 1.
        !           472: 
        !           473:        * i960.h (OVERRIDE_OPTIONS): Disable function inlining.
        !           474: 
        !           475:        * function.c (assign_parms): When MAYBE_REG_PARM_STACK_SPACE,
        !           476:        don't assume that register parameters already have a stack slot.
        !           477:        * i960 (*): Change all tests of current_functions_args_size from
        !           478:        48 to 0 due to above change.
        !           479:        * i960.md (*): Likewise.
        !           480: 
        !           481:        * sparc.h (LONG_DOUBLE_TYPE_SIZE): Add ifdefed out definition.
        !           482:        (FIXED_REGISTERS): g4 is not a fixed register.
        !           483:        (RETURN_IN_MEMORY): Define.
        !           484:        (FUNCTION_ARG_PASS_BY_REFERENCE): Also pass TFmode by reference.
        !           485: 
        !           486:        * fixincludes: Fix stdio.h and math.h for Ultrix 4.0.
        !           487: 
        !           488: Tue May 26 15:29:21 1992  Brendan Kehoe  ([email protected])
        !           489: 
        !           490:        * x-we32k: new file, need alloca.o
        !           491:        * xm-we32k.h [NO_SYS_SIGLIST]: define this
        !           492:        * we32k.h [STRICT_ALIGNMENT] define as `1'
        !           493:        [NO_WAIT_H]: also define this
        !           494:        * collect2.c [NO_WAIT_H]: don't include sys/wait.h if this is
        !           495:        defined.
        !           496: 
        !           497:        * Makefile.in (clean): rm libgcc1.null.
        !           498: 
        !           499: Wed May 27 15:36:51 1992  Richard Stallman  ([email protected])
        !           500: 
        !           501:        * real.h (REAL_VALUE_TO_TARGET_SINGLE): Test HOST_BITS_PER_WORD right.
        !           502: 
        !           503:        * i386sco.h (SIZE_TYPE): New definition.
        !           504: 
        !           505:        * c-typeck.c (build_binary_op): When shortening, handle case
        !           506:        where op0 and arg0 are different but have same width.  op1/arg1 too.
        !           507: 
        !           508:        * toplev.c (compile_file): Cast xmalloc when arg to setvbuf.
        !           509: 
        !           510:        * expmed.c (expand_divmod): Clear can_clobber_op0 if doing mod.
        !           511: 
        !           512:        * Makefile.in (protoize.1, unprotoize.1): Delete target before mv'ing.
        !           513:        (mostlyclean): Delete tmp-unproto.1.
        !           514: 
        !           515:        * sdbout.c (sdbout_symbol, sdbout_toplevel_data): Test DECL_IGNORED_P.
        !           516:        * dwarfout.c (dwarfout_file_scope_decl): Likewise.
        !           517: 
        !           518: Wed May 27 13:48:36 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !           519: 
        !           520:        * i386.md (ashldi3,ashrdi3,lshrdi3): Fix typo in comparison.
        !           521: 
        !           522: Wed May 27 02:11:22 1992 Ron Guilmette (rfg at ncd.com)
        !           523: 
        !           524:        * i386v4.h, i860v4.h, sparcv4.h: Include real.h.
        !           525:        (ASM_OUTPUT_FLOAT, ASM_OUTPUT_DOUBLE):
        !           526:        New definitions, if host and target formats match.
        !           527: 
        !           528:        * real.h (REAL_VALUE_TO_TARGET_SINGLE, REAL_VALUE_TO_TARGET_DOUBLE):
        !           529:        Defined, but only if host and target formats match.
        !           530: 
        !           531: Wed May 27 06:20:26 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           532: 
        !           533:        * reload1.c (reload_as_needed): For asm insn, check all reload
        !           534:        insns for validity.
        !           535:        (emit_reload_insns, gen_input_reload): Remove previous change that
        !           536:        checked them here.
        !           537:        * recog.c (constrain_operands, case 'm', 'o', 'g'): Accept pseudo if
        !           538:        reload is in progress.
        !           539: 
        !           540: Tue May 26 19:24:21 1992  Richard Kenner  ([email protected])
        !           541: 
        !           542:        * combine.c (combinable_i3pat): Allow a hard register as the
        !           543:        destination even if SMALL_REGISTER_CLASSES if source is a CALL.
        !           544: 
        !           545:        * emit-rtl.c (gen_lowpart_common): Fix handling of int->float
        !           546:        union conversions.
        !           547: 
        !           548: Tue May 26 19:23:43 1992  Jim Wilson  ([email protected])
        !           549: 
        !           550:        * a29k.h (HARD_REGNO_MODE_OK): Don't let anything larger than
        !           551:        UNITS_PER_WORD be allocated to an odd numbered register.
        !           552: 
        !           553: Tue May 26 15:22:27 1992  Richard Stallman  ([email protected])
        !           554: 
        !           555:        * config.sub (defaulting the OS): Separate subversions with periods.
        !           556: 
        !           557:        * limits.h: Fix condition for defining long-long macros, to suit libc.
        !           558: 
        !           559:        * Makefile.in (specs): New target.
        !           560:        (gcc): Don't write `specs' here.
        !           561:        (start.encap): Depend on `specs'.
        !           562:        (all.cross): Depend on EXTRA_PARTS.
        !           563:        (rest.cross): New target.
        !           564: 
        !           565:        * c-common.c (declare_function_name):
        !           566:        Set TREE_USED, not TREE_NO_UNUSED_WARNING.
        !           567: 
        !           568: Tue May 26 04:52:53 1992  Michael Meissner  ([email protected])
        !           569: 
        !           570:        * loop.c (loop_has_volatile): New static variable to record
        !           571:        whether the loop has any volatile references in it.
        !           572:        (prescan_loop): Set loop_has_volatile.
        !           573:        (check_dbra_loop): Don't reverse loop if there are any volatile
        !           574:        references in it.
        !           575: 
        !           576: Mon May 25 16:04:08 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !           577: 
        !           578:        * i386gas.h (ASM_OUTPUT_OPCODE): Translate "repnz" to "repne".
        !           579:        * seq386gas.h (ASM_OUTPUT_OPCODE): Likewise.
        !           580: 
        !           581: Mon May 25 15:53:31 1992  Richard Stallman  ([email protected])
        !           582: 
        !           583:        * optabs.c (emit_indirect_jump): Emit barrier here.
        !           584:        * stmt.c (expand_computed_goto): Not here.
        !           585: 
        !           586: Mon May 25 06:22:59 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           587: 
        !           588:        * cse.c (canon_reg): Must call validate_change if insn has any  
        !           589:        MATCH_DUPs even if replacing a pseudo with another pseudo.
        !           590: 
        !           591:        * explow.c (emit_stack_{save,restore)}: Call validize_mem on save area.
        !           592: 
        !           593:        * combine.c (simplify_shift_const, case PLUS): Simplify cases where
        !           594:        the PLUS is just turning on bits that will be shifted out.
        !           595: 
        !           596:        * emit-rtl.c (gen_lowpart_common): Add new case for single-word
        !           597:        float->integer conversion; all others already present.
        !           598:        Check for -fpretend-float in this and the other cases.
        !           599: 
        !           600:        * stmt.c (expand_goto): Fix typo in previous change.
        !           601: 
        !           602:        * reload1.c (gen_input_reload): When checking for validity of
        !           603:        reloads made for asms, also check the constraints.
        !           604: 
        !           605:        * explow.c (allocate_dynamic_stack_space): Don't add to size
        !           606:        if we aren't going to need to align the size.
        !           607: 
        !           608:        * fold-const.c (fold, case *_DIV_EXPR): Fold (a * C1) / C2 for
        !           609:        some C1 and C2.
        !           610: 
        !           611: Sun May 24 14:07:53 1992  Ron Guilmette (rfg at ncd.com)
        !           612: 
        !           613:        * toplev.c (main):
        !           614:        Fix typo setting use_gdb_dbx_extensions in xcoff case.
        !           615: 
        !           616:        * c-decl.c (pushdecl):  Call `build_type_copy' rather than calling
        !           617:        `c_build_type_variant' to duplicate a type.
        !           618: 
        !           619: Sun May 24 16:56:09 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           620: 
        !           621:        * reload1.c (reload): Refine setting of basic_block_needs.
        !           622: 
        !           623: Sun May 24 15:43:08 1992  John F Carr  (jfc at Achates.mit.edu)
        !           624: 
        !           625:        * combine.c (try_combine): Don't split an insn if that would move
        !           626:        a use of a register across a set of the same register.
        !           627: 
        !           628: Sun May 24 14:50:38 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !           629: 
        !           630:        * reg-stack.c (constrain_asm_operands): Ignore constraint letters
        !           631:        following '#' in each alternative.
        !           632: 
        !           633: Sun May 24 02:28:45 1992  Richard Stallman  ([email protected])
        !           634: 
        !           635:        * gcc.c (pexecute): New alternative definition for OS2.
        !           636:        Take SEARCH_FLAG as arg instead of FUNC.
        !           637:        (execute): Change call to pexecute.
        !           638: 
        !           639:        * toplev.c (main): Don't run ps for -dm if on OS2.
        !           640: 
        !           641:        * cccp.c (main): Use PATH_SEPARATOR computing num_dirs.
        !           642:        (path_include): Likewise, setting q.
        !           643: 
        !           644:        * gcc.c: Include sys/file.h.
        !           645: 
        !           646:        * Makefile.in (extraclean): Delete install1.texi.
        !           647: 
        !           648: Sat May 23 14:14:06 1992  Richard Stallman  ([email protected])
        !           649: 
        !           650:        * crtstuff.c (__do_global_ctors) [not INVOKE__main]: Make body empty.
        !           651: 
        !           652:        * fold-const.c (float_error): Renamed from const_binop_error.
        !           653:        (const_binop, fold_convert):
        !           654:        Call set_float_handler around REAL_VALUE_TRUNCATE.
        !           655: 
        !           656:        * Makefile.in ($(srcdir)/INSTALL): New target.
        !           657:        (doc): Depend on that.
        !           658:        ($(srcdir)/gcc.info, $(srcdir)/cpp.info): Delete $(srcdir) from deps.
        !           659:        ($(srcdir)/gcc.info): List all subfiles as deps.
        !           660: 
        !           661:        * math-68881.h: Use %! instead of fpcr.
        !           662: 
        !           663:        * install.sh: New file.
        !           664:        * configure: Changed install_with_cp to broken_install.
        !           665:        Test that flag for the host, not for the target.
        !           666:        If set, use install.sh.
        !           667: 
        !           668:        * Makefile.in (EXTRA_HEADERS): New variable.
        !           669:        (USER_H): Use that.
        !           670:        * configure: Let alternatives set EXTRA_HEADERS via var header_files.
        !           671:        (m68k-...): Set header_files to install math-68881.h.
        !           672: 
        !           673:        * Makefile.in (install-dir): Create (libsubdir)/include.
        !           674:        (install-limits-h, install-float-h): Depend on install-dir.
        !           675: 
        !           676:        * Makefile.in (gcc.xtar): Warn if version in gcc.texi is old.
        !           677: 
        !           678:        * genconfig.c (main): Add 1 when outputting MAX_RECOG_OPERANDS.
        !           679:        Initialize to just 9.
        !           680: 
        !           681:        * gcc.c (MD_STARTFILE_PREFIX_1): New config macro.
        !           682:        (main): Use that like MD_STARTFILE_PREFIX.
        !           683: 
        !           684: Sat May 23 08:13:38 1992  John F Carr  (jfc at Achates.mit.edu)
        !           685: 
        !           686:        * reload1.c (reload): Copy MEM_IN_STRUCT_P flag when converting
        !           687:        pseudo register to equivalent memory location.
        !           688: 
        !           689: Sat May 23 07:12:15 1992  Michael Meissner  ([email protected])
        !           690: 
        !           691:        * x-iris (OLDCC): Add -cckr to turn off strict ANSI checking.
        !           692: 
        !           693:        * mips.c (current_function_name): Delete definition, function.c
        !           694:        defines this and mips.h has a declaration.
        !           695: 
        !           696:        * longlong.h (mips umul_ppmm): Use "d" constraint instead of "r", so
        !           697:        that we know the value is an integer register.
        !           698: 
        !           699: Sat May 23 01:14:49 1992  Richard Stallman  ([email protected])
        !           700: 
        !           701:        * vax.h (PRINT_OPERAND): Undo last change.
        !           702:        Fix the comment instead.
        !           703: 
        !           704:        * x-dpx2200, x-dpx2300 (ALLOCA_FINISH, AS): New variables.
        !           705: 
        !           706: Fri May 22 01:52:22 1992  Ron Guilmette (rfg at ncd.com)
        !           707: 
        !           708:        * svr4.h (MD_EXEC_PREFIX):  Added definition.
        !           709: 
        !           710:        * protoize.c [POSIX]: Include dirent.h rather than sys/dir.h.
        !           711:        (_POSIX_SOURCE): Undef before defining.
        !           712:        (getpwd):  Change declaration to an `extern'.
        !           713:        (open):  Add declaration in the #if 0 section along with fprintf.
        !           714:        (link, unlink, access, execvp):  Add `extern' declarations.
        !           715:        (strlen):  Don't mention arg type in declaration.
        !           716:        (main):  Declare `params' as `const char *' to avoid botch when doing
        !           717:        test-protoize-simple.
        !           718: 
        !           719: Fri May 22 17:15:36 1992  John F Carr  (jfc at Achates.mit.edu)
        !           720: 
        !           721:        * calls.c (expand_call): Allocate stack space for arguments passed
        !           722:        in registers when OUTGOING_REG_PARM_STACK_SPACE is defined and
        !           723:        stack space has not been preallocated.
        !           724: 
        !           725: Fri May 22 17:16:55 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           726: 
        !           727:        * combine.c (simplify_comparison): Try to reduce size of a
        !           728:        constant by changing comparison code; don't only do for 1 and -1.
        !           729: 
        !           730:        * reload.h (reg_equiv_memory_loc): Declare.
        !           731:        * reload.c (refers_to_regno_for_reload_p): Use reg_equiv_memory_loc
        !           732:        instead of reg_equiv_mem and reg_equiv_address; look for constant.
        !           733:        (reg_overlap_mentioned_for_reload_p): LIkewise.
        !           734:        Use new function to check for MEM.
        !           735:        (refers_to_mem_for_reload_p): New function.
        !           736:        * reload1.c (reg_equiv_memory_loc): No longer static.
        !           737: 
        !           738: Fri May 22 17:15:12 1992  Ron Guilmette  (rfg at ncd.com)
        !           739: 
        !           740:        * Makefile.in (test-protoize-simple):  Only delete files made by this
        !           741:        target (not the man pages!)
        !           742:        (test-protoize-simple):  Use -x option to avoid munging getopt.h.
        !           743:        (test-protoize-simple):  Fixed number of differences message.
        !           744:        (mostly-clean):  Properly remove all temp files relating to protoize/
        !           745:        unprotoize.
        !           746:        (install-common):  Force removal of previously installed g++ and c++
        !           747:        command files before trying to install new ones.
        !           748: 
        !           749:        * spc-sol2.h:  New file.
        !           750: 
        !           751:        * configure (sparc-*-solaris2*):  New configuration added.
        !           752: 
        !           753:        * x-sparcv4 (X_CFLAGS):  Removed -Bstatic and -dn options.
        !           754: 
        !           755: Fri May 22 15:30:05 1992  Chip Salzenberg  ([email protected])
        !           756: 
        !           757:        * c-common.c (declare_function_name): Move from c-decl.c.
        !           758:        Construct function names instead of expecting them as parameters.
        !           759:        Set TREE_READONLY and other attributes before calling pushdecl.
        !           760:        * c-decl.c (init_decl_processing, store_parm_decls): Calls changed.
        !           761:        (declare_function_name): Remove to c-common.c.
        !           762: 
        !           763:        * cp-decl.c (init_decl_processing, store_parm_decls):
        !           764:        Call declare_function_name.
        !           765: 
        !           766: Fri May 22 12:15:16 1992  Jim Wilson  ([email protected])
        !           767: 
        !           768:        * sparcv4.h (ASM_OUTPUT_CASE_LABEL): Define.
        !           769: 
        !           770: Fri May 22 11:40:00 1992  Richard Stallman  ([email protected])
        !           771: 
        !           772:        * x-dpx2200, x-dpx2300 (CFLAGS): Definition deleted.
        !           773: 
        !           774:        * c-decl.c, cp-decl.c (pushdecl): No shadow warnings if DECL_IGNORED_P.
        !           775: 
        !           776:        * c-decl.c (declare_function_name):
        !           777:        Change names to __FUNCTION__ and __PRETTY_FUNCTION__
        !           778: 
        !           779:        * vax.h (PRINT_OPERAND): In M case, don't complement after subtract 1.
        !           780: 
        !           781:        * c-lex.c (yylex): Use pedwarn for overflow warnings.
        !           782:        Pedwarn if constant doesn't fit its type.
        !           783: 
        !           784: Fri May 22 13:32:39 1992  Chip Salzenberg  ([email protected])
        !           785: 
        !           786:        * xcoffout.h (DBX_TYPE_DECL_STABS_CODE): Was DBX_DECL_STABS_CODE.
        !           787: 
        !           788: Fri May 22 08:31:16 1992  Torbjorn Granlund  ([email protected])
        !           789: 
        !           790:        * longlong.h (all machines): Define UMUL_TIME and UDIV_TIME.
        !           791:        Auxiliary formatting changes.
        !           792:        (header): Define __CLOBBER_CC and __AND_CLOBBER_CC.
        !           793:        (__sparc__ macros): Use them.
        !           794:        (__hppa__ add_ssaaaa,sub_ddmmss): Accept zero using `M' constraint.
        !           795:        (__hppa__ umul_ppmm): Define if _PA_RISC1_1.
        !           796:        (__mc88110__ umul_ppmm,udiv_qrnnd): New.
        !           797:        (__pyr__ umul_ppmm): Rewrite.
        !           798:        (default count_leading_zeros): Make it work for 64 bit longs.
        !           799: 
        !           800: Fri May 22 06:27:31 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           801: 
        !           802:        * cse.c (cse_insn): Invalidate a volatile destination.
        !           803: 
        !           804:        * expmed.c (expand_divmod): Correctly handle volatile operands.
        !           805: 
        !           806: Fri May 22 06:26:50 1992  Chip Salzenberg  ([email protected])
        !           807: 
        !           808:        * rs6000.h (ASM_DECLARE_FUNCTION_NAME):  Use new function
        !           809:        xcoffout_declare_function.
        !           810:        * rs6000.c (output_epilog):  Shorten internal label.
        !           811:        (output_toc, output_function_profiler):  Likewise.
        !           812:        * xcoffout.c (xcoffout_declare_function):  New function, created
        !           813:        to localize knowledge of end-of-function internal label.
        !           814:        (xcoffout_end_epilogue): Shorten internal label.
        !           815: 
        !           816: Thu May 21 15:31:42 1992  Jim Wilson  ([email protected])
        !           817: 
        !           818:        * reorg.c (relax_delay_slots): Clear INSN_FROM_TARGET_P when
        !           819:        remove insns from a delay slot.
        !           820: 
        !           821: Thu May 21 13:54:15 1992  Richard Stallman  ([email protected])
        !           822: 
        !           823:        * reload.c (find_reloads):
        !           824:        Don't abort for % in last operand in asm_operands.
        !           825: 
        !           826:        * alloca.c: Make symlink to master copy.
        !           827: 
        !           828:        * stmt.c (expand_asm_operands): Count nclobbers properly.
        !           829: 
        !           830:        * explow.c (allocate_dynamic_stack_space): Call mark_reg_pointer.
        !           831: 
        !           832:        * c-parse.y (stmt, WHILE case): Start loop *after* parsing end test.
        !           833:        (do_stmt_start): Broken out from DO rule.
        !           834:        (stmt, DO case): Use that.
        !           835:        Add error-handler rule for parse error in end test.
        !           836: 
        !           837:        * sparc.h (ADDITIONAL_REGISTER_NAMES): Support `cc'.
        !           838: 
        !           839:        * c-lex.c (yylex): Pedwarn if `f' constant exceeds range of `float'.
        !           840:        Just once even if `f' appears twice.
        !           841:        This and the like warning for `double' are only if -pedantic.
        !           842: 
        !           843: Thu May 21 08:46:30 1992  Jim Wilson  ([email protected])
        !           844: 
        !           845:        * Makefile.in (STAGESTUFF): Add stamp-proto.
        !           846: 
        !           847: Thu May 21 04:04:33 1992  Richard Stallman  ([email protected])
        !           848: 
        !           849:        * svr3.h (LOCAL_LABEL_PREFIX): Override as a period.
        !           850:        (ASM_OUTPUT_INTERNAL_LABEL, ASM_GENERATE_INTERNAL_LABEL):
        !           851:        Use LOCAL_LABEL_PREFIX.
        !           852:        * dpx2.h (LOCAL_LABEL_PREFIX): Definition deleted.
        !           853:        * tower-as.h (LOCAL_LABEL_PREFIX): Override as empty.
        !           854: 
        !           855: Wed May 20 23:29:15 1992    (Eric Youngdale at [email protected])
        !           856: 
        !           857:        * config-gcc.com: Take care of situation if sources are NFS mounted.
        !           858: 
        !           859: Wed May 20 14:35:10 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           860: 
        !           861:        * jump.c (jump_optimize): Add additional validation check to
        !           862:        case that detects "if (foo) bar++;".
        !           863: 
        !           864: Wed May 20 13:18:09 1992  Tim Moore  ([email protected])
        !           865: 
        !           866:        * pa.md : Changed "xy" constraints to "x" constraints.
        !           867:        (movsi+6): Let "r" registers match too. Add define_split to change
        !           868:        into 2 insns if needed.
        !           869:        (decrement_and_branch_until_zero): New pattern.
        !           870:        * pa.h (FUNCTION_ARG_PASS_BY_REFERENCE): Fix for TYPE == 0.
        !           871:        (REGISTER_MOVE_COST): Do stuff for SNAKE_FP_REGS.
        !           872:        (PRINT_OPERAND_ADDRESS): Write CONST_INT case.
        !           873: 
        !           874: Wed May 20 00:04:55 1992  Richard Stallman  ([email protected])
        !           875: 
        !           876:        * ns32k.h (NS32K_DISPLACEMENT_P): Fix typo.
        !           877:        * ns32k.md (extzv-1): New pattern for extracting from SImode.
        !           878: 
        !           879:        * c++: -M suppresses -lg++.
        !           880: 
        !           881:        * svr3.h (DO_GLOBAL_CTORS_BODY): Flush spurious #endif.
        !           882: 
        !           883:        * reload1.c (gen_input_reload): New arg IS_ASM.  Can now return 0.
        !           884:        (emit_reload_insns): Pass new arg.  Error if it returns 0.
        !           885: 
        !           886:        * configure: Use $cpu_type to default $tm_file.
        !           887: 
        !           888:        * configure, config.sub: Correct we32 to we32k.
        !           889:        * configure (decstation-dec): Deleted--doesn't fit as machine alias.
        !           890:        (we32k): Add company default.
        !           891:        (fx2800): This is a machine alias, not a company default.
        !           892: 
        !           893:        * configure (i386-*-bsd*, we32-att-sysv*, m68k-crds-unos*):
        !           894:        Missing *'s added at ends of config names.
        !           895: 
        !           896:        * c-typeck.c (convert_arguments): Use warn_for_assignment to handle
        !           897:        -Wconversion.  Fix typo in width-mismatch test.
        !           898: 
        !           899:        * svr3.h (ASM_GENERATE_INTERNAL_LABEL): Put a * at the front.
        !           900: 
        !           901: Tue May 19 21:53:05 1992  Richard Stallman  ([email protected])
        !           902: 
        !           903:        * Makefile.in (clean): Add -f in rm *.dvi.
        !           904: 
        !           905:        * x-dpx2200, x-dpx2300 (CFLAGS): Make value conditional on CC.
        !           906: 
        !           907:        * genattrtab.c (simplify_test_exp, evaluate_eq_attr):
        !           908:        Delete tests of current_alternative_string; they caused bugs.
        !           909: 
        !           910:        * cross-test.c: New file.
        !           911:        * Makefile.in (cross-test, cross-test.o): New targets.
        !           912:        (all.cross): Depend on cross-test.
        !           913: 
        !           914:        * c-decl.c (declare_function_name): Fix bug in previous change.
        !           915: 
        !           916: Tue May 19 19:57:39 1992  Jim Wilson  ([email protected])
        !           917: 
        !           918:        * i960.h (FUNCTION_ARG_BOUNDARY): Return mode's alignment if type 0.
        !           919: 
        !           920:        * calls.c (expand_call): Set MEM_IN_STRUCT_P for aggregate return
        !           921:        values in memory.
        !           922: 
        !           923:        * function.c (locate_and_pad_parm): Use MAYBE_REG_PARM_STACK_SPACE
        !           924:        if defined.
        !           925:        * i960.c (i960_function_arg_advance): Put MUST_PASS_IN_STACK
        !           926:        parameters on the stack.
        !           927:        (i960_function_arg): Likewise.
        !           928: 
        !           929:        * m68k.md (zero_extendqisi2+1): Add condition to exclude MEM/MEM
        !           930:        case which would require reloading.
        !           931: 
        !           932:        * unroll.c: Delete incorrect Feb 26 1992 change.  
        !           933:        (copy_loop_body): For combined address givs, scale giv_inc by the
        !           934:        two giv's multiplicative factors if they are different.
        !           935: 
        !           936:        * i960.md (zero_extendqisi2): Add comment.
        !           937: 
        !           938:        * combine.c (apply_distributive_law): Don't distribute subregs
        !           939:        which change the mode class.
        !           940: 
        !           941:        * fixincludes: Fix memory.h for SunOS.
        !           942: 
        !           943:        * sparc.h (EXTRA_CC_MODES, EXTRA_CC_NAMES): Add CCFPEmode, for
        !           944:        compares which should generate exceptions for qNaNs.
        !           945:        (SELECT_CC_MODE): Use CCFPEmode for non EQ/NE FP compares.
        !           946:        * sparc.c (normal_comp_operator): Handle CCFPEmode.
        !           947:        (C_MODES, output_cbranch): Likewise.
        !           948:        * sparc.md (cmpdf, cmpsf): Modify patterns to use fcmpe for CCFPE
        !           949:        mode, and fcmp for CCFP mode.
        !           950: 
        !           951:        From rfg:
        !           952:        * sparc.h: Declare output_move_quad, output_fp_move_quad and
        !           953:        output_floatsitf2.
        !           954:        * sparc.c (mem_aligned_8): New function.
        !           955:        (output_move_double): Clean up a little.  Call mem_aligned_8.
        !           956:        Load operands[] into register variables for efficiency.
        !           957:        (output_move_quad, output_fp_move_quad): New functions.
        !           958:        (output_floatsitf2): New function.
        !           959:        (print_operand): Support 'S' and 'T'.
        !           960:        * sparc.md (cmptf, movtf, extendsftf2, extenddftf2, trunctfsf2,
        !           961:        trunctfdf2, floatsitf2, fix_trunctfsi2, addtf3, subtf3, multf3,
        !           962:        divtf3, negtf2, abstf2, sqrttf2):  New patterns added for TFmode
        !           963:        support.
        !           964: 
        !           965: Tue May 19 19:34:10 1992    Ron Guilmette  (rfg at ncd.com)
        !           966: 
        !           967:        * i386v4.h (DBX_REGISTER_NUMBER):  Fixed DWARF numbers for
        !           968:        x86 floating-point registers.
        !           969: 
        !           970: Tue May 19 15:30:32 1992  Mats Lofkvist  ([email protected])
        !           971: 
        !           972:        * fixincludes: Fix return type of malloc and friends.
        !           973: 
        !           974: Tue May 19 13:30:16 1992  Richard Stallman  ([email protected])
        !           975: 
        !           976:        * config.sub (iris4d): If $os is some kind of Irix, don't clobber it.
        !           977:        Make the default -irix4.
        !           978: 
        !           979:        * c-decl.c (declare_function_name): New arg printable_name.
        !           980:        Declare __PRINTABLE_NAME__.
        !           981:        (init_decl_processing, store_parm_decls): Pass the new arg.
        !           982: 
        !           983: Tue May 19 09:50:01 1992  Tom Wood  ([email protected])
        !           984: 
        !           985:        * m88k.c (output_options): Check profile_block_flag.
        !           986:        (m88k_layout_frame): Ditto.
        !           987:        (output_function_block_profiler): Save and restore the parameter
        !           988:        registers when calling __bb_init_func.
        !           989:        (output_block_profiler): Use @LPBX2.
        !           990:        
        !           991:        * m88k.h (CASE_VECTOR_INSNS): Choose a table of branch
        !           992:        instructions or addresses.  The latter is a win for the m88110.
        !           993:        (ASM_OUTPUT_CASE_END): Nothing needed for table of addresses.
        !           994:        (ASM_OUTPUT_ADDR_VEC_ELT): Use "br" or "word".
        !           995:        * m88k.md (casesi, casesi_jump): Updated.
        !           996: 
        !           997:        * m88k.md (m88110 function units): Count in half cycles.
        !           998: 
        !           999:        * m88k.md (call insns): Clobber rather than use r1.
        !          1000: 
        !          1001:        * m88k.c (m88k_layout_frame): Fix m88k_fp_offset for zero case.
        !          1002: 
        !          1003: Mon May 18 10:38:20 1992  Michael Meissner  ([email protected])
        !          1004: 
        !          1005:        * iris.h (DEFAULT_SIGNED_CHAR): Define as 0 for compatibility with
        !          1006:        IRIS defaults.  Patch from [email protected] (Kevin Dalley).
        !          1007: 
        !          1008:        * xm-irix4.h (HAVE_VPRINTF): Define.
        !          1009: 
        !          1010:        * x-iris (CLIB): Add -lmalloc.
        !          1011: 
        !          1012:        * mips.md (fp_comp functional unit): Use adder functional unit
        !          1013:        instead to more closely model MIPS behavior and make genattrtab
        !          1014:        faster.
        !          1015:        (transfer functional unit): Use memory functional unit instead.
        !          1016:        (sqrt functional unit): Use divide functional unit instead.
        !          1017:        (branch_zero): If CSE has folded a value which is constant, and
        !          1018:        the jump would be omitted, do not eliminate putting a jump there.
        !          1019:        This causes bad code to be generated when using gas, since the
        !          1020:        previous instruction may be a load which had it's delay slot
        !          1021:        filled by the 'branch', and the next instruction depends on the
        !          1022:        value loaded.
        !          1023: 
        !          1024:        * mips-at.c (whole file): Delete, no longer needed.
        !          1025: 
        !          1026:        * mips-at.md (whole file): Delete, no longer needed.
        !          1027: 
        !          1028:        * Makefile.in (stamp-attrtab): Remove $(srcdir) in front of
        !          1029:        $(PREMADE_ATTRTAB) so that MIPS builds can be done in
        !          1030:        subdirectories.
        !          1031: 
        !          1032:        * t-decrose (PREMADE_ATTRTAB*): Don't define, genattrtab is now fast
        !          1033:        enough that we don't have to save a pre-made genattrtab.c.
        !          1034:        (LIBGCC1): Use libgcc1.null rule to turn off building libgcc1.a.
        !          1035: 
        !          1036:        * t-decstatn (PREMADE_ATTRTAB*): Don't define, genattrtab is now fast
        !          1037:        enough that we don't have to save a pre-made genattrtab.c.
        !          1038:        (LIBGCC1): Use libgcc1.null rule to turn off building libgcc1.a.
        !          1039: 
        !          1040:        * t-mips (PREMADE_ATTRTAB*): Don't define, genattrtab is now fast
        !          1041:        enough that we don't have to save a pre-made genattrtab.c.
        !          1042:        (LIBGCC1): Use libgcc1.null rule to turn off building libgcc1.a.
        !          1043: 
        !          1044:        * mips.h (ASM_OUTPUT_CONSTRUCTOR,ASM_OUTPUT_DESTRUCTOR): Define.
        !          1045:        Patch from [email protected].
        !          1046:        (DEFAULT_SIGNED_CHAR): Don't define if already defined.
        !          1047: 
        !          1048: Mon May 18 01:34:38 1992  Kayvan Sylvan    ([email protected])
        !          1049: 
        !          1050:        * svr3.h (DO_GLOBAL_CTORS_BODY): Start at end, if STACK_GROWS_DOWNWARD.
        !          1051: 
        !          1052: Mon May 18 01:34:38 1992  Richard Stallman  ([email protected])
        !          1053: 
        !          1054:        * Makefile.in (protoize.o, unprotoize.o):
        !          1055:        Do nothing, but depend on stamp-proto.
        !          1056:        (stamp-proto): New target.  Compile both protoize.o and unprotoize.o.
        !          1057: 
        !          1058:        * configure (ns32k-ns-genix): Commented out.
        !          1059: 
        !          1060:        * expmed.c (expand_mult): Use synth_mult even if not -O.
        !          1061: 
        !          1062: Sun May 17 02:54:21 1992  Richard Stallman  ([email protected])
        !          1063: 
        !          1064:        * c-decl.c (push_parm_decl): Pedantic warning if shadowing typedef.
        !          1065: 
        !          1066:        * c-typeck.c (constant_expression_warning): New function.
        !          1067:        (store_init_value): Call that.
        !          1068:        * tree.h (TREE_CONSTANT_OVERFLOW): New flag.
        !          1069: 
        !          1070:        * c-lex.c (yylex): "exceeds range" warning changed to pedwarn.
        !          1071:        * c-decl.c (grokdeclarator): Likewise for duplicate keywords.
        !          1072: 
        !          1073:        * c-typeck.c (build_unary_op): For increment operators,
        !          1074:        test TREE_READONLY in operand, not the data type.
        !          1075: 
        !          1076:        * unprotoize.c: New file.
        !          1077:        * Makefile.in (unprotoize.o): Use that.
        !          1078: 
        !          1079:        * c-decl.c (init_decl_processing): Make global decl for __NAME__.
        !          1080:        (store_parm_decls): Make local decl for __NAME__.
        !          1081:        (declare_function_name): Subroutine for that.
        !          1082:        * toplev.c (rest_of_decl_compilation):
        !          1083:        Ignore initialized statics if DECL_IGNORED_P is set.
        !          1084:        * c-lex.c (yylex): Convert invisible initialized char array vars
        !          1085:        to string constants.
        !          1086: 
        !          1087:        * c-decl.c (get_parm_info): Change error message.
        !          1088: 
        !          1089: Sat May 16 21:25:21 1992  Paul Eggert  ([email protected])
        !          1090: 
        !          1091:        * fold-const.c (fold): Do not fold X-X to 0 if X is floating point.
        !          1092: 
        !          1093:        * cse.c (simplify_unary_operation): - -X simplifies to X even
        !          1094:        with IEEE floating point.
        !          1095: 
        !          1096: Sat May 16 14:14:50 1992  Richard Stallman  ([email protected])
        !          1097: 
        !          1098:        * Makefile.in (clean): Delete *.dvi.
        !          1099:        (distclean): Not here.
        !          1100: 
        !          1101:        * Makefile.in (install-man): Ignore errors in all commands.
        !          1102: 
        !          1103:        * combine.c (expand_compound_operation):
        !          1104:        Don't simplify extending a const_int.
        !          1105: 
        !          1106:        * ns32k.h (NS32K_DISPLACEMENT_P): New macro.
        !          1107:        (INDIRECTABLE_1_ADDRESS_P): Use that.
        !          1108:        * ns32k.md (addsi3): Likewise.
        !          1109: 
        !          1110: Sat May 16 07:47:11 1992  Tom Wood  ([email protected])
        !          1111: 
        !          1112:        * m88k.h: Override SET_ASM_OP in svr4.h. 
        !          1113: 
        !          1114: Sat May 16 00:10:09 1992  Richard Stallman  ([email protected])
        !          1115: 
        !          1116:        * c-parse.y (parmlist_1): Add pedantic warning.
        !          1117: 
        !          1118: Fri May 15 13:10:07 1992  Richard Stallman  ([email protected])
        !          1119: 
        !          1120:        * configure (i386-*-sco3.2v4*): New file.
        !          1121:        * config.sub: For SCO, produce -sco3.2v2.  For ISC, make just -isc.
        !          1122: 
        !          1123:        * dbxout.c (DBX_TYPE_DECL_STABS_CODE): Was DBX_DECL_STABS_CODE.
        !          1124:        (DBX_OUTPUT_ENUM): Pass type as arg; make it do the whole job.
        !          1125: 
        !          1126:        * svr4.h (ASM_BYTE_OP): Delete the tab.
        !          1127:        (SET_ASM_OP): New definition.
        !          1128: 
        !          1129:        * Makefile.in (gcc.xtar): Depend on doc.
        !          1130:        (gcc.info, cpp.info): Duplicate rules deleted.
        !          1131: 
        !          1132:        * i386.c (handle_pragma): Use SET_ASM_OP, not DEF_ASM_OP.
        !          1133: 
        !          1134: Fri May 15 12:38:18 1992  Jim Wilson  ([email protected])
        !          1135: 
        !          1136:        * final.c (final_scan_insn): Don't set new_block when within a
        !          1137:        sequence.  Set it after the last insn of the sequence.
        !          1138: 
        !          1139: Fri May 15 07:23:09 1992  Tom Wood  ([email protected])
        !          1140: 
        !          1141:        * m88k.c (m88k_handle_pragma_token, output_short_branch_defs):
        !          1142:        Use SET_ASM_OP.
        !          1143: 
        !          1144: Fri May 15 14:54:54 1992  Howard Chu ([email protected])
        !          1145: 
        !          1146:        * fx2800.h: Replace Ron Guilmette's version with working version.
        !          1147:        Tested on Concentrix 2.1 and 2.2.
        !          1148: 
        !          1149:        * i860.c (singlemove_string): Comparison of const0_rtx was in the
        !          1150:        wrong place and would never be reached. Added check for negative
        !          1151:        short int constants.
        !          1152:        (output_size_for_block_move): call singlemove_string instead of
        !          1153:        just emitting a mov.
        !          1154:        (sfmode_constant_to_ulong): eliminate bogus "# error" directive.
        !          1155: 
        !          1156:        * t-fx2800, x-fx2800, xm-fx2800.h: New files.
        !          1157:        * configure: Corresponding changes.
        !          1158: 
        !          1159:        * dbxout.c (DBX_MEMPARM_STABS_LETTER): New macro.
        !          1160:        (dbxout_type): Check for DBX_OUTPUT_ENUM.
        !          1161:        (dbxout_parms): Use DBX_MEMPARM_STABS_LETTER.
        !          1162:        (dbxout_block): Check for DBX_OUTPUT_LBRAC, DBX_OUTPUT_RBRAC.
        !          1163: 
        !          1164: Thu May 14 18:26:13 1992  Jim Wilson  ([email protected])
        !          1165: 
        !          1166:        * sparcv4.h (ASM_OUTPUT_ALIGN_JUMP_TABLE, ASM_OUTPUT_INTERNAL_LABEL,
        !          1167:        ASM_GENERATE_INTERNAL_LABEL): Delete.
        !          1168: 
        !          1169: Thu May 14 13:51:01 1992  Chip Salzenberg  ([email protected])
        !          1170: 
        !          1171:        * toplev.c (compile_file):  Use IO_BUFFER_SIZE for finput.
        !          1172:        * xm-i386sco.h, xm-rs6000.h (IO_BUFFER_SIZE): Defined.
        !          1173: 
        !          1174: Thu May 14 15:21:24 1992  Roland McGrath  ([email protected])
        !          1175: 
        !          1176:        * config.sub: Recognize "none" as a valid os.
        !          1177: 
        !          1178: Thu May 14 13:37:52 1992  Richard Stallman  ([email protected])
        !          1179: 
        !          1180:        * function.c (assign_parms): Make new stack slot if entry stack
        !          1181:        slot isn't aligned as much as the mode wants.
        !          1182:        And don't make an eqv for entry_parm in that case.
        !          1183:        * sparc.c (output_move_double): Assume memory always ok for ldd, std
        !          1184:        except when explicit offset from stack.
        !          1185: 
        !          1186:        * c-decl.c (duplicate_decls):
        !          1187:        Don't warn about qualifier mismatch for a function.
        !          1188: 
        !          1189:        * c-decl.c (grokdeclarator): Give explicit list of types to promote
        !          1190:        to int (and sometimes to unsigned int) for parms.
        !          1191: 
        !          1192:        * Makefile.in (gcc.info, cpp.info): New targets.
        !          1193:        (gcc.xtar): Depend on those.
        !          1194: 
        !          1195:        * expmed.c (extract_bit_field): Don't fail to compute
        !          1196:        all of a DImode value.
        !          1197: 
        !          1198:        * dwarfout.c (SET_ASM_OP): Renamed from DEF_ASM_OP.
        !          1199:        (ASM_OUTPUT_DEF): Use SET_ASM_OP.
        !          1200:        * m88k.h (SET_ASM_OP): Renamed from DEF_ASM_OP.
        !          1201:        * sparcv4.h (DEF_ASM_OP): No need for #undef.
        !          1202: 
        !          1203:        * cccp.c (main): Handle -iprefix option instead of GCC_EXEC_PREFIX.
        !          1204:        * gcc.c (process_command): Set gcc_exec_prefix.
        !          1205:        (do_spec_1): Handle %I.
        !          1206:        (default_compilers): Use %I when running cpp.
        !          1207: 
        !          1208:        * protoize.c (savestring, savestring2): Change parm decls.
        !          1209: 
        !          1210:        * i860.h, we32k.h (CONST_COSTS): Add missing parm OUTER_CODE.
        !          1211: 
        !          1212:        * i386v4.h (DEF_ASM_OP, WEAK_ASM_OP): Deleted.
        !          1213: 
        !          1214: Wed May 13 17:23:45 1992  Richard Stallman  ([email protected])
        !          1215: 
        !          1216:        * rtl.c (init_rtl): For byte_mode and word_mode, use first fit.
        !          1217: 
        !          1218:        * protoize.c (munge_compile_params): Increase size of temp_params.
        !          1219: 
        !          1220: Wed May 13 13:30:40 1992  Chip Salzenberg  ([email protected])
        !          1221: 
        !          1222:        * i386sco4.h: New file.
        !          1223: 
        !          1224: Tue May 12 23:23:51 1992  Richard Stallman  ([email protected])
        !          1225: 
        !          1226:        * expr.c (expand_increment): A subreg as op0 is not necessarily a copy.
        !          1227:        Treat subregs like regs.
        !          1228: 
        !          1229:        * c-typeck.c (mark_addressable): Different messages for reg var
        !          1230:        if reason is a use in a nested function.
        !          1231: 
        !          1232: Tue May 12 14:28:22 1992  Tom Wood  (wood at gen-rtx)
        !          1233: 
        !          1234:        * gcc.c (process_command): -save-temps uses a switches entry.
        !          1235: 
        !          1236: Tue May 12 21:24:46 1992  Richard Stallman  ([email protected])
        !          1237: 
        !          1238:        * collect2.c (vfork): Declaration deleted.
        !          1239: 
        !          1240: Tue May 12 06:16:49 1992  Niklas Hallqvist  ([email protected])
        !          1241: 
        !          1242:        * tower-as.h: Added support for basic block profiling.
        !          1243: 
        !          1244: Tue May 12 02:34:45 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          1245: 
        !          1246:        * unx386.h (AS3_SHIFT_DOUBLE): New macro to print shift-double
        !          1247:        opcodes.
        !          1248: 
        !          1249:        * i386gas.h (AS3_SHIFT_DOUBLE): Redefine for GAS shift-double rules.
        !          1250:        (GAS_MNEMONICS): New macro to force use of opcodes for GAS.
        !          1251:        * seq386gas.h (AS3_SHIFT_DOUBLE,GAS_MNEMONICS): Likewise.
        !          1252: 
        !          1253:        * i386.c (print_operand): Use GAS_MNEMONICS to choose long-long
        !          1254:        opcode suffix.
        !          1255: 
        !          1256:        * i386.md (ashldi3,ashrdi3,lshrdi3): Split into separate
        !          1257:        recognizers for constant and variable shifts.
        !          1258:        Use AS3_SHIFT_DOUBLE for variable shifts.
        !          1259:        (all shifts and rotates): Don't allow memory operands for shift
        !          1260:        count.
        !          1261:        (bit set/clear): Don't allow non-CONST_INT constants as SET_SRC.
        !          1262:        (movstrsi,cmpstrsi,strlensi): Allow any address_operand within
        !          1263:        a MEM:BLK, not just register_operand.
        !          1264:        (movstrsi): Rewrite to avoid match_dup on the address_operand
        !          1265:        above.
        !          1266: 
        !          1267: Mon May 11 23:31:47 1992  Mike Stump  ([email protected])
        !          1268: 
        !          1269:        Sun May 10 18:44:58  Per Bothner  ([email protected])
        !          1270: 
        !          1271:        * dbxout.c (dbxout_type_methods):  Only emit final semi-colon
        !          1272:        of method list of we have emitted any methods.  (The converse
        !          1273:        of only emitting the operation name initially if needed.)
        !          1274: 
        !          1275: Mon May 11 22:45:18 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          1276: 
        !          1277:        * reload.c, reload1.c: Use reg_overlap_mentioned_for_reload_p and
        !          1278:        refers_to_regno_for_reload_p instead of the normal versions.
        !          1279:        * reload.c (reg_overlap_mentioned_for_reload_p): New function.
        !          1280: 
        !          1281: Mon May 11 22:44:50 1992  Ron Guilmette  (rfg at ncd.com)
        !          1282: 
        !          1283:        * integrate.c (expand_inline_function):  Copy LABEL_NAMEs to new
        !          1284:        copies of CODE_LABELs.
        !          1285:        * tree.c (decl_function_context, decl_type_context):  Renamed `fndecl'
        !          1286:        formal parameter to `decl' throughout these functions.
        !          1287: 
        !          1288: Mon May 11 18:43:45 1992  Paul Eggert  ([email protected])
        !          1289: 
        !          1290:        * cccp.c: (deps_file): Deleted.
        !          1291:        (main): Do not open deps_file until needed.
        !          1292:        Check error status of dep_stream and stdout more carefully.
        !          1293:        (timestamp): New function; avoids calling localtime unless needed.
        !          1294:        (special_symbol, initialize_builtins): Use new timestamp function.
        !          1295: 
        !          1296: Mon May 11 20:48:26 1992  Richard Stallman  ([email protected])
        !          1297: 
        !          1298:        * genix.h: Added #error, since this hasn't been updated.
        !          1299: 
        !          1300: Mon May 11 14:33:32 1992  Ron Guilmette (rfg at ncd.com)
        !          1301: 
        !          1302:        * dwarfout.c (is_pseudo_reg):  New function.
        !          1303:        (location_attribute):  Use `is_pseudo_reg'.
        !          1304:        (location_or_const_value_attribute):  Use DECL_INCOMING_RTL as the
        !          1305:        basis for forming the location decsriptor for any register parameter
        !          1306:        which was optimized into non-exitance.
        !          1307: 
        !          1308:        * dwarfout.c (DWARF_VERSION):  New (default) definition.
        !          1309:        (ASM_OUTPUT_DWARF_STACK_OP, ASM_OUTPUT_DWARF_FMT_BYTE,
        !          1310:        ASM_OUTPUT_DWARF_TYPE_MODIFIER, ASM_OUTPUT_DWARF_DATA1):  Output tab
        !          1311:        before ASM_BYTE_OP.
        !          1312:        (ASM_OUTPUT_DWARF_ADDR_CONST):  Encapsulate all statements in a
        !          1313:        `do { ... } while (0)'
        !          1314:        (data_member_location_attribute, bit_offset_attribute):  Both fixed
        !          1315:        to use alignment of declared type of field as the "containing object"
        !          1316:        size.
        !          1317:        (location_or_const_value_attribute):  Fixed to use DECL_INCOMING_RTL
        !          1318:        only for parms passed in memory.
        !          1319:        (output_decl):  Don't output DIEs for externals if DWARF_VERSION == 1.
        !          1320: 
        !          1321: Sun May 10 17:18:33 1992  Torbjorn Granlund  ([email protected])
        !          1322: 
        !          1323:        * pa.h (CPP_PREDEFINES): Define for BSD here.
        !          1324:        Remove conditional #ifdef hpux.
        !          1325:        * pa-hpux.h, pa-ghpux.h (CPP_PREDEFINES): Define for hpux here.
        !          1326:        * pa.h (CPP_SPEC): Define.
        !          1327: 
        !          1328: Sun May 10 12:12:06 1992  Richard Stallman  ([email protected])
        !          1329: 
        !          1330:        * Makefile.in (clean): Delete unprotoize.c.
        !          1331: 
        !          1332:        * stmt.c (expand_decl): Set MEM_IN_STRUCT_P right in dynamic case.
        !          1333: 
        !          1334:        * expr.c (get_inner_ref): Handle ARRAY_REF only if constant offset.
        !          1335:        Handle non-PLUS_EXPR variable offset by assuming multiple of byte.
        !          1336:        (expand_assignment, expand_expr): Fix gen_rtx added in last change.
        !          1337: 
        !          1338: Sat May  9 02:39:58 1992  Richard Stallman  ([email protected])
        !          1339: 
        !          1340:        * expr.c (get_inner_reference): New output arg poffset.
        !          1341:        (expand_assignment, expand_expr): Pass new arg.  Handle nonzero offset.
        !          1342:        (do_jump): Pass new arg but ignore result.
        !          1343:        * fold-const.c (optimize_bit_field_compare, decode_field_reference):
        !          1344:        Pass the new arg.  Just return 0 if offset comes back nonzero.
        !          1345: 
        !          1346:        * reload.c (find_equiv_reg): Always test valueno >= 0.
        !          1347: 
        !          1348:        * c-aux-info.c: Don't include param.h or errno.h; don't declare errno.
        !          1349: 
        !          1350:        * rtl.c (read_rtx): Fix error in prev change.
        !          1351: 
        !          1352:        * gcc.c (process_command): Handle -print-libgcc-file-name.
        !          1353:        (main): Handle print_libgcc_file_name by printing the name.
        !          1354: 
        !          1355:        * c-decl.c (finish_struct): Use TYPE_PRECISION to see whether 
        !          1356:        bitfield's type is narrower than int, for promoting to int.
        !          1357: 
        !          1358:        * cccp.c (struct definition, struct reflist): New field `rest_args'.
        !          1359:        (struct arglist): Likewise.
        !          1360:        (rest_extension, REST_EXTENSION_LENGTH): New var and macro.
        !          1361:        (create_defnition): Recognize `...' and set flag in arglist.
        !          1362:        (collect_expansion): Propagate flag to definition.
        !          1363:        (macroexpand): Check flag when parsing arglist.
        !          1364:        Special handling for ## next to a rest arg.
        !          1365:        (macarg, macarg1): New arg rest_arg affects parsing in macarg1.
        !          1366: 
        !          1367:        * genattrtab.c: Misc speedups and size reductions.
        !          1368:        (check_attr_test): Set RTX_UNCHANGING_P for tests of const attributes.
        !          1369:        Also for symbol_ref and comparison ops.
        !          1370:        (make_canonical): Likewise.  Also check for degenerate cond values.
        !          1371:        (operate_exp, simplify_cond, insert_right_side, evaluate_eq_attr):
        !          1372:        Avoid copying in some cases.  Detect opportunities to simplify.
        !          1373:        (compute_alternative_mask): Avoid atoi in most cases.
        !          1374:        (copy_rtx_unchanging): New function.
        !          1375:        (evaluate_eq_attr, simplify_test_exp): Use that.
        !          1376: 
        !          1377:        * genattrtab.c (optimize_attrs): Work pattern by pattern,
        !          1378:        doing all the work for each pattern before moving on.
        !          1379:        Use temp_obstack during simplification, then copy the end result.
        !          1380:        (temp_obstack): New obstack.
        !          1381:        (clear_struct_flag): New subroutine.
        !          1382:        (SIMPLIFY_TEST_EXP): Test MEM_IN_STRUCT_P.
        !          1383:        (simplify_test_exp): Add code for debugging stop.
        !          1384:        Avoid consing when possible; sometimes free storage.
        !          1385:        Check MEM_IN_STRUCT_P.  Add shortcuts.
        !          1386: 
        !          1387:        * genattrtab.c: Add simplification per alternative (not in use now).
        !          1388:        (insn_n_alternatives): New array filled in by gen_insn.
        !          1389:        (current_alternative_string): Nonzero means we are simplifying 
        !          1390:        for a particular alternative.  Value is string for that numeral.
        !          1391:        (SIMPLIFY_ALTERNATIVE): New macro simplifies eq_attr for alternative.
        !          1392:        (evaluate_eq_attr, simplify_test_exp): Call SIMPLIFY_ALTERNATIVE.
        !          1393:        (simplify_by_alternatives, count_sub_rtxs): New functions.
        !          1394: 
        !          1395:        * genattrtab.c (attrs): Now an array indexed by first char.
        !          1396:        (MAX_ATTRS_INDEX): Length of above.
        !          1397:        (find_attr, main): Use that new data structure.
        !          1398: 
        !          1399:        * genattrtab.c: Clarify use of hash-consing:
        !          1400:        (hash_obstack): New obstack.
        !          1401:        (attr_hash_add_rtx, attr_hash_add_string): Use hash_obstack.
        !          1402:        (attr_rtx): Use hash_obstack if object is hashed.
        !          1403:        Set RTX_INTEGRATED_P if object is hashed.
        !          1404:        Don't hash object if subexpressions aren't hashed.
        !          1405:        If making symbol_ref, hash the symbol name.
        !          1406:        Uniquize const_int with value 0 or 1.
        !          1407:        (attr_equal_p): New compare function; uses RTX_INTEGRATED_P.
        !          1408:        (simplify_and_tree, simplify_or_tree, simplify_test_exp): Use that.
        !          1409:        (attr_copy_rtx): New; copy all but hashed subexpressions.
        !          1410:        (attr_eq): New function.
        !          1411:        (attr_numeral): New function.
        !          1412:        (check_attr_test): Use attr_eq.  Hash symbol_ref and comparison ops.
        !          1413:        (check_attr_value): Return modified value.  Callers changed.
        !          1414:        Hash symbol_ref.
        !          1415:        (convert_set_attr_alternative): Use attr_eq and attr_numeral.
        !          1416:        (convert_const_symbol_ref): Hash symbol_ref and eq.
        !          1417:        (make_alternative_compare): Use attr_numeral.
        !          1418:        (alternative_name): Fill in using hasher.
        !          1419:        (copy_boolean): Hash a boolean expression if possible.
        !          1420: 
        !          1421: Fri May  8 23:10:18 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          1422: 
        !          1423:        * i386.md (ashldi3,ashrdi3,lshrdi3): Fix typo in output template.
        !          1424: 
        !          1425:        * cse.c (cse_insn): Handle SUBREGs in CLOBBERs.
        !          1426: 
        !          1427: Fri May  8 14:55:17 1992  Richard Stallman  ([email protected])
        !          1428: 
        !          1429:        * Makefile.in (PREMADE_ATTRTAB, PREMADE_ATTRTAB_MD): New vars.
        !          1430:        (stamp-attrtab): Use them, to use presupplied file if suitable.
        !          1431:        * t-mips, t-decstatn, t-decrose (PREMADE_ATTRTAB, PREMADE_ATTRTAB_MD):
        !          1432:        Defined.
        !          1433:        * mips-at.md, mips-at.c: New files.
        !          1434: 
        !          1435:        * c-common.c (shorten_compare): Extend "always 0" warning
        !          1436:        to fencepost case with le or ge.
        !          1437: 
        !          1438:        * cccp.c (pass_thru_directive): Don't output a newline.
        !          1439:        (initialize_builtins): Add explicit newlines in sprintfs.
        !          1440: 
        !          1441: Fri May  8 14:49:12 1992  Michael Meissner  ([email protected])
        !          1442: 
        !          1443:        * mips.md (adddi3): Force -32768 into a register, since the
        !          1444:        define_insn's won't accept that one value.
        !          1445:        (all attributes): Where an attribute is set to the same value in all
        !          1446:        alternatives, don't use the alternative notation, since it will make
        !          1447:        genattrtab somewhat faster.
        !          1448: 
        !          1449:        * rtl.c (read_rtx): Use the current obstack to read in strings,
        !          1450:        rather than repeated malloc/realloc's.
        !          1451: 
        !          1452: Thu May  7 18:41:03 1992  Richard Stallman  ([email protected])
        !          1453: 
        !          1454:        * calls.c (expand_call): Never set must_preallocate if no stack args.
        !          1455: 
        !          1456: Thu May  7 16:52:56 1992  Torbjorn Granlund  ([email protected])
        !          1457: 
        !          1458:        * pa1*: New names for pa1.1*.
        !          1459:        * configure: Corresponding changes.
        !          1460: 
        !          1461:        * m68k.md (u?mulsidi3): Don't permit immediates for operand 2.
        !          1462:        (u?mulsidi3 recognizers): Split into immediate/nonimmediate cases.
        !          1463:        * m68k.md ({zero,sign}_extend recognizers): Remove `n' from constraint
        !          1464:        if predicate doesn't permit constants.
        !          1465: 
        !          1466: Thu May  7 15:42:32 1992  Michael Collison  (collison at osf.org)
        !          1467: 
        !          1468:        * i386rose.h (ASM_OUTPUT_FLOAT, ASM_OUTPUT_DOUBLE): Fix these to
        !          1469:        avoid printing NaNs, and infinity.
        !          1470:        (SUBTARGET_SWITCHES): Add OSF dependent switches for half-pic
        !          1471:        support.
        !          1472:        (MASK_HALF_PIC, TARGET_HALF_PIC): Likewise.
        !          1473:        (CC1_SPEC): Map pic-none, pic-lib, pic-extern and pic-calls
        !          1474:        to appropriate half-pic compiler switches.
        !          1475:        (LINK_SPEC): If not -noshrlib or -pic-none, pass -warn_nopic.
        !          1476:        Allow user to pass -noshrlib directly.
        !          1477:        (OPTIMIZATION_OPTIONS): Customize levels for OSF.
        !          1478:        (CONSTANT_ADDRESS_P: Add check to determine if we have a
        !          1479:        half-pic constant.
        !          1480:        (ENCODE_SECTION_INFO): Check to see if we have a half-pic
        !          1481:        declaration.
        !          1482:        (ASM_DECLARE_OBJECT_NAME): Output the label (definition) for a
        !          1483:        object and check to see if it is half-pic.
        !          1484:        (ASM_DECLARE_FUNCTION_NAME): Likewise but for functions.
        !          1485: 
        !          1486: Thu May  7 15:56:51 1992  Richard Stallman  ([email protected])
        !          1487: 
        !          1488:        * reload.c (find_reloads): Remover unterm comment from recent changes.
        !          1489: 
        !          1490:        * genattrtab.c (compute_alternative_mask): Usually bypass atoi.
        !          1491: 
        !          1492: Thu May  7 15:56:51 1992  Tom Wood  ([email protected])
        !          1493: 
        !          1494:        * genattrtab.c (fill_attr): Do nothing for constant attribute.
        !          1495:        (check_attr_test): Set unchanging flag for constant attribute.
        !          1496:        (write_test_expr): Expand constant attributes here.
        !          1497: 
        !          1498: Thu May  7 06:01:46 1992  Michael Meissner  ([email protected])
        !          1499: 
        !          1500:        * decrose.h (CPP_SPEC): Fix typo in last change.
        !          1501: 
        !          1502: Wed May  6 17:39:31 1992  Richard Stallman  ([email protected])
        !          1503: 
        !          1504:        * convex.h (HAVE_STRERROR, vfprintf, WTERMSIG, WEXITSTATUS): Deleted.
        !          1505: 
        !          1506:        * dbxout.c (dbxout_type): Don't repeat a cross-reference
        !          1507:        merely because full is nonzero.
        !          1508: 
        !          1509:        * calls.c (expand_call):
        !          1510:        Avoid rounding error testing copy_to_evaluate_size.
        !          1511: 
        !          1512:        * xm-mipsbsdn.h: Renamed from xm-mipsbsdnews.h.
        !          1513:        * xm-sun386.h: Renamed from xm-xm-i386sun.h.
        !          1514:        * configure: Corresponding changes.
        !          1515: 
        !          1516: Wed May  6 23:11:55 1992  John F Carr  (jfc at Achates.mit.edu)
        !          1517: 
        !          1518:        * cse.c (simplify_binary_operation): Support MIN and MAX for
        !          1519:        SImode and narrower integers.
        !          1520: 
        !          1521: Wed May  6 17:25:37 1992  Michael Meissner  ([email protected])
        !          1522: 
        !          1523:        * mips.h (MIPS_VERSION): Bump Meissner version # to 18.
        !          1524:        (mips_cpu_attr): New define, which is the mips_cpu variable recast
        !          1525:        to the attr_cpu enumeration for mips.md.
        !          1526:        (HALF_PIC_NUMBER_PTRS, HALF_PIC_NUMBER_REFS): Add dummy
        !          1527:        definitions if halfpic.h is not included.
        !          1528: 
        !          1529:        * mips.c (function_epilogue): Print half-pic stats if -mstats and
        !          1530:        the stats are non-zero.
        !          1531: 
        !          1532:        * mips.md (cpu attribute): Just use symbol_ref "mips_cpu_attr"
        !          1533:        instead of a four way if statement.
        !          1534:        (movsi_internal, movhi, movqi): Use 'z' constraint for fpsw, not 's'.
        !          1535: 
        !          1536:        * halfpic.h (half_pic_number_ptrs): Add counter for the number of
        !          1537:        pointers generated.
        !          1538:        (half_pic_number_refs): Add counter for the number of references.
        !          1539: 
        !          1540:        * halfpic.c (half_pic_number_ptrs): Add counter for the number of
        !          1541:        pointers generated.
        !          1542:        (half_pic_number_refs): Add counter for the number of references.
        !          1543:        (half_pic_ptrs): Update new counters.
        !          1544: 
        !          1545:        * decstatn.h (CPP_SPEC): Define __LANGUAGE_x__ and __LANGUAGE_x
        !          1546:        where x is C_PLUS_PLUS, OBJECTIVE_C, C, or ASSEMBLY.  Fix
        !          1547:        undef'ing LANGUAGE_C for .S files.
        !          1548:        (HALF_PIC_PREFIX): Define as '$Lp.'.
        !          1549: 
        !          1550:        * decstatn.h (CPP_SPEC): Define __LANGUAGE_x__ and __LANGUAGE_x
        !          1551:        where x is C_PLUS_PLUS, OBJECTIVE_C, C, or ASSEMBLY.
        !          1552: 
        !          1553:        * mips-tfile.c (toplevel): Don't define anything in the standard
        !          1554:        headers, such as open, etc.
        !          1555:        (add_procedure): Delete unused variable orig_fdb.
        !          1556: 
        !          1557:        * mips-tdump.c (toplevel): Don't define anything in the standard
        !          1558:        headers, such as open, etc.
        !          1559: 
        !          1560:        * collect2.c (main): Don't pass -f<xxx> switches to GCC when
        !          1561:        building the constructor table.
        !          1562:        (write_c_file): Put extern in front of all external declarations.
        !          1563:        (scan_prog_file, COFF varient): On ECOFF systems, check whether
        !          1564:        the header pointer is non-NULL before using it.
        !          1565: 
        !          1566:        * cp-lex.c (store_pending_inline): Cast obstack_copy arg to char *.
        !          1567:        (copy_lang_decl): Cast bcopy args to char *.
        !          1568: 
        !          1569: Wed May  6 13:28:58 1992  Jim Wilson  ([email protected])
        !          1570: 
        !          1571:        * i960.h, i960.c (hard_regno_mode_ok): Use unsigned int not short.
        !          1572: 
        !          1573:        * Makefile.in (USER_H): Add va-i960.h.
        !          1574: 
        !          1575: Wed May  6 07:31:54 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          1576: 
        !          1577:        * explow.c (emit_stack_{save,restore}): New functions.
        !          1578:        * expr.h: Declare them and enum save_level.
        !          1579:        * calls.c (expand_call): Call emit_stack_save.
        !          1580:        * expr.c (expand_builtin, case BUILT_IN_ALLOCA): Likewise.
        !          1581:        * function.c (delete_handlers): Make test for insn that sets
        !          1582:        a slot more general.
        !          1583:        (expand_function_end): Call emit_stack_{save,restore}.
        !          1584:        * stmt.c (declare_nonlocal_label): Call emit_stack_save.
        !          1585:        (expand_goto_internal): Likewise.
        !          1586:        (expand_goto): Likewise.
        !          1587:        Copy slots so they don't get instantiated incorrectly; also
        !          1588:        update use of virtual regs and frame pointer.
        !          1589:        (expand_end_bindings): Call emit_stack_restore.
        !          1590:        (expand_decl): Call emit_stack_save.
        !          1591:        Set current_function_calls_alloca when allocating variable-sized
        !          1592:        objects.
        !          1593:        * rs6000.md ({save,restore}_stack_{block,function,nonlocal}): New.
        !          1594: 
        !          1595: Tue May  5 13:17:29 1992  Jim Wilson  ([email protected])
        !          1596: 
        !          1597:        * configure (a29k-*-*, i960-*-*): New default configurations.
        !          1598: 
        !          1599:        * i960.c, i960.h, i960.md, xm-i960.h, va-i960.h: New files.
        !          1600: 
        !          1601:        * gstdarg.h, gvarargs.h: Include va-i960.h for i960.
        !          1602: 
        !          1603:        * calls.c (expand_call): Call REG_PARM_STACK_SPACE once and save
        !          1604:        result.  Add code to Use new macros MAYBE_REG_PARM_STACK_SPACE and
        !          1605:        FINAL_REG_PARM_STACK_SPACE.
        !          1606:        (store_one_arg): New parameter reg_parm_stack_space.
        !          1607:        * function.c (assign_parms): Use MAYBE_REG_PARM_STACK_SPACE.
        !          1608: 
        !          1609:        * cse.c (NONZERO_BASE_PLUS_P): Don't consider arg pointer by itself
        !          1610:        to be non-zero, because it isn't on the i960.
        !          1611: 
        !          1612:        * dbxout.c (dbxout_symbol): Use decl_function_context not
        !          1613:        TREE_PERMANENT to identify function local statics.
        !          1614: 
        !          1615:        * integrate.c (copy_rtx_and_substitute): Also remap SYMBOL_REFs
        !          1616:        that point to LABEL_REFs in the constant pool.
        !          1617: 
        !          1618:        * expr.c (expand_expr, PLUS case): Canonicalize MULT
        !          1619:        when associating a constant.
        !          1620: 
        !          1621: Tue May  5 12:56:29 1992  Torbjorn Granlund  ([email protected])
        !          1622: 
        !          1623:        * pa.c (singlemove_string): Make it global.
        !          1624:        * pa.md: Add high:DI and lo_sum:DI patterns.
        !          1625: 
        !          1626: Tue May  5 12:04:56 1992  Richard Stallman  ([email protected])
        !          1627: 
        !          1628:        * c-typeck.c (build_array_ref): Require int index *after* promotion.
        !          1629: 
        !          1630:        * convex.h (REG_OK_FOR_{BASE,INDEX}_P): Virtual regs that will
        !          1631:        turn into stack_pointer_rtx are not valid for indexing.
        !          1632: 
        !          1633:        * config.sub: NeXT is BSD, not SysV.
        !          1634: 
        !          1635:        * att386.h (ASM_OUTPUT_INTERNAL_LABEL, ASM_GENERATE_INTERNAL_LABEL):
        !          1636:        Undef before defining.
        !          1637: 
        !          1638:        * dbxout.c (dbxout_parms): Handle invisible reference parms.
        !          1639: 
        !          1640: Tue May  5 22:48:54 1992  Niklas Hallqvist  ([email protected])
        !          1641: 
        !          1642:        * Makefile.in (test-protoize-simple):
        !          1643:        Change tmp-protoize* to tmp-proto*.
        !          1644:        (mostlyclean): Remove that temporary file.
        !          1645: 
        !          1646: Tue May  5 09:35:30 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          1647: 
        !          1648:        * i386.c (print_operand): Handle VOIDmode CONST_DOUBLE correctly.
        !          1649: 
        !          1650:        * reload.c (find_reloads): Recompute `code' before preferred_class.
        !          1651: 
        !          1652: Mon May  4 00:23:29 1992  Ron Guilmette  (rfg at ncd.com)
        !          1653: 
        !          1654:        * svr3.h (ASM_OUTPUT_INTERNAL_LABEL, ASM_GENERATE_INTERNAL_LABEL):
        !          1655:        Added definitions appropriate for most svr3 systems.
        !          1656: 
        !          1657:        * protoize.c (volatile):  Define to nothing if !defined(__STDC__).
        !          1658:        (setjmp, longjmp):  Declared external if not defined as pp-macro.
        !          1659:        (include_defaults):  Fix type of `fname' field.
        !          1660:        (compiler_file_name):  Fixed type.
        !          1661:        (savestring):  Fixed type of `size' parameter.
        !          1662:        (savestring2):  New function.
        !          1663:        (string_list_cons):  Removed trailing blanks from parm declaration.
        !          1664:        (find_file):  Moved comments out of formal parm declarations area.
        !          1665:        (munge_compile_params):  Fixed type of `temp_parms'.
        !          1666:        (gen_aux_info_file):  Construct new filename using `savestring2'.
        !          1667:        (find_extern_def):  Suppress annoying warnings about missing
        !          1668:        definitions for extern functions.
        !          1669:        (edit_fn_declaration):  Declare `clean_text_p' as `volatile' not as
        !          1670:        `VOLATILE'.
        !          1671:        (scan_for_missed_items):  Make text of warning more obvious.
        !          1672:        (edit_file):  Make text of warning shorter.
        !          1673: 
        !          1674:        * libgcc2.c (__builtin_new):  Changed arg type to `size_t'.  Moved
        !          1675:        nested declaration of malloc out to file-scope.
        !          1676:        (__builtin_vec_new):  Prototype preceeding function declarations.
        !          1677:        (__builtin_vec_new, __builtin_vec_delete): Changed types of non-pointer
        !          1678:        arguments and local variables to `size_t'.
        !          1679:        (__clear_cache):  Use type `void *' variables to store addresses.
        !          1680:        (__do_global_dtors):  Use unsigned type for counters.
        !          1681:        (__main):  Add explicit type to declaration of `initialized'.
        !          1682: 
        !          1683: Mon May  4 16:16:56 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          1684: 
        !          1685:        * dwarfout.c (dwarfout_file_scope_decl): Ignore a global register
        !          1686:        variable.
        !          1687: 
        !          1688: Mon May  4 08:28:18 1992  Torbjorn Granlund  ([email protected])
        !          1689: 
        !          1690:        * pa-ghpux.h, pa-hpux.h: #define HAVE_ATEXIT.
        !          1691: 
        !          1692:        * genextract.c (print_path, main): Make the generated code use
        !          1693:        `pat', not `insn', except for fatal_insn_not_found.  Remove
        !          1694:        insn_code variable from generated code, and switch directly on
        !          1695:        INSN_CODE (insn).
        !          1696: 
        !          1697:        * hppa*: Rename to be unique in first 8 characters.
        !          1698:        * configure: Corresponding changes.
        !          1699: 
        !          1700: Mon May  4 00:20:39 1992  Richard Stallman  ([email protected])
        !          1701: 
        !          1702:        * reload.c (find_reloads): Compute preferred_class after
        !          1703:        calling find_reloads_toplev or equivalent.
        !          1704: 
        !          1705:        * vax.h (PRINT_OPERAND): Add codes M, h, b.
        !          1706: 
        !          1707:        * ns32k.h (PREFERRED_RELOAD_CLASS): Change GEN_AND_MEM_REGS
        !          1708:        to GENERAL_REGS.
        !          1709: 
        !          1710:        * config.sub: Recognize we32 and 3b*.
        !          1711: 
        !          1712:        * varasm.c (readonly_data_section): Move after data_section.
        !          1713: 
        !          1714:        * Makefile.in (print-rtl.o): Compile also for host machine.
        !          1715:        (genattrtab): Link in host's print-rtl.o.
        !          1716: 
        !          1717:        * i386v4.h (ASM_OUTPUT_ALIGNED_LOCAL): Deleted.  Dfn in svr4.h is good.
        !          1718: 
        !          1719: Sun May  3 21:39:22 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          1720: 
        !          1721:        * i386.h (RTX_COSTS): Add missing break.
        !          1722: 
        !          1723: Sun May  3 19:40:50 1992  Jim Wilson  ([email protected])
        !          1724: 
        !          1725:        From law:
        !          1726:        * sparc.md (fp unit attributes): Change result ready delays to
        !          1727:        match how the FP unit really works.
        !          1728: 
        !          1729:        * sched.c (schedule_block): Don't move USE at the end of any block.
        !          1730: 
        !          1731:        From rfg:
        !          1732:        * sparc.c (handle_pragma_token):  Added new function (based on original
        !          1733:        `handle_pragma_token' in i386.c).
        !          1734:        * sparcv4.h (INIT_SECTION_PREAMBLE):  Definition added.
        !          1735:        (PUSHSECTION_FORMAT):  Added leading tab.
        !          1736:        (HANDLE_PRAGMA):  Added definition to handle #pragma weak (based on
        !          1737:        original definition in i386v4.h).
        !          1738: 
        !          1739:        From jfc:
        !          1740:        * sched.c (insn_costs): New variable.
        !          1741:        (insn_cost): Save cost of insn in insn_costs to avoid recomputation.
        !          1742:        (sched_analyze_2): Handle UNSPEC_VOLATILE.
        !          1743:        (schedule_insns): Init insn_costs.
        !          1744: 
        !          1745:        * sparc.c (output_move_double): Correctly check for constant
        !          1746:        DFmode addresses.  Assume that DFmode addresses with MEM_IN_STRUCT_P
        !          1747:        set are always aligned.
        !          1748: 
        !          1749: Sun May  3 16:52:06 1992  Richard Stallman  ([email protected])
        !          1750: 
        !          1751:        * gcc.c (PATH_SEPARATOR): New macro.  From Alex Zatsman.
        !          1752:        (process_command): Use it when scanning a path.
        !          1753: 
        !          1754:        * expr.c (expand_builtin): Cast icode to int for indexing.
        !          1755: 
        !          1756:        * xm-i386dos.h: New file.
        !          1757:        * configure.bat: Use that file.
        !          1758:        * gcc.c (EXECUTABLE_SUFFIX): Remove special default for MSDOS.
        !          1759:        (putenv): Remove conditionals for MSDOS, since HAVE_PUTENV now defined.
        !          1760: 
        !          1761:        * c-typeck.c (build_array_ref): Promote after -Wchar-subscripts test.
        !          1762: 
        !          1763:        * c-decl.c (builtin_function): If traditional and name is user-visible,
        !          1764:        set DECL_BUILT_IN_NONANSI.
        !          1765: 
        !          1766:        * cccp.c (PATH_SEPARATOR): Add default definition.
        !          1767:        (main): Use that.
        !          1768: 
        !          1769: Sun May  3 08:17:02 1992  Torbjorn Granlund  ([email protected])
        !          1770: 
        !          1771:        * pyr.h (FRAME_POINTER_REGNUM): Work around pyr cpp bug.
        !          1772: 
        !          1773:        * xm-hppa.h (NO_SYS_SIGLIST): Define.
        !          1774: 
        !          1775: Sat May  2 15:03:08 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          1776: 
        !          1777:        * callc.c (emit_call_1): Restore inhibit_defer_pop after popping args.
        !          1778: 
        !          1779: Thu Apr 30 20:00:00 1992  DJ Delorie ([email protected])
        !          1780: 
        !          1781:        * configure.bat: Complete rewrite to use Makefile.in.
        !          1782:        * Makefile.dos: File deleted.
        !          1783: 
        !          1784: Thu Apr 30 23:38:00 1992  Per Bothner  ([email protected])
        !          1785: 
        !          1786:        * xcoffout.h (DBX_FINISH_SYMBOL):  Use DECL_ASSEMBLER_NAME
        !          1787:        instead of DECL_NAME when writing out a global symbol.
        !          1788:        (Makes a big difference for C++ static class members.)
        !          1789: 
        !          1790: Thu Apr 30 23:13:01 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          1791: 
        !          1792:        * fold-const.c (fold, comparisons): Don't call omit_one_operand in
        !          1793:        a case where the operand isn't really being omitted.
        !          1794: 
        !          1795:        * combine.c (distribute_notes, case REG_DEAD): Don't write a USE for
        !          1796:        a partially-dead register if we already wrote one.
        !          1797: 
        !          1798: Thu Apr 30 21:51:29 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          1799: 
        !          1800:        * Makefile.in (enquire.o, install-common-headers): Make these work
        !          1801:        when $(srcdir) is .
        !          1802: 
        !          1803:        * c-decl.c (init_decl_processing): Use void_ftype_any as the type
        !          1804:        for _exit, exit and abort.
        !          1805: 
        !          1806: Wed Apr 29 21:42:30 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          1807: 
        !          1808:        * genattrtab.c (insn_name_ptr): Define so we could link with
        !          1809:        debug_rtx.
        !          1810: 
        !          1811:        * genattrtab.c (check_attr_test, simplify_test_exp): Copy expression
        !          1812:        before setting as unchanging.
        !          1813:        (make_canonical): Set result as unchanging after calling
        !          1814:        convert_const_symbol_ref.
        !          1815:        (evaluate_eq_attr): When returning original expression, set it
        !          1816:        as unchanging.
        !          1817: 
        !          1818: Wed Apr 29 13:30:33 1992  Michael Meissner  ([email protected])
        !          1819: 
        !          1820:        * halfpic.c (half_pic_ptr): Allocate space for the NULL byte.
        !          1821: 
        !          1822: Wed Apr 29 06:28:35 1992  Ron Guilmette  (rfg at ncd.com)
        !          1823: 
        !          1824:        * dwarfout.c (src_coords_attribute):  Don't #ifdef code based on
        !          1825:        DWARF_DECL_COORDINATES.
        !          1826:        (name_and_src_coords_attributes):  Do #ifdef calls to `lookup_filename'
        !          1827:        and `src_coords_attribute' based on DWARF_DECL_COORDINATES.  Also,
        !          1828:        pop out of .debug section temporarily while calling `lookup_filename'.
        !          1829: 
        !          1830: Wed Apr 29 02:01:03 1992  Mike Stump  ([email protected])
        !          1831: 
        !          1832:        * Complete another Cygnus <--> FSF merge.
        !          1833: 
        !          1834:        Tue Apr 28 19:24:52 1992  Mike Stump  (mrs at rtl.cygnus.com)
        !          1835: 
        !          1836:        * cp-init.c (do_friend):  Handle overloaded and extern "C"
        !          1837:        friends correctly.
        !          1838: 
        !          1839:        Mon Apr 27 21:04:40 1992  Mike Stump  (mrs at rtl.cygnus.com)
        !          1840: 
        !          1841:        * cp-search.c (build_vbase_vtables_init):  Don't set
        !          1842:        flag_this_is_variable to -2 when not doing a ctor.
        !          1843: 
        !          1844:        * cp-class.c (build_vbase_path): Don't unconditionally set
        !          1845:        code to be a PLUS_EXPR.
        !          1846: 
        !          1847:        Mon Apr 27 14:14:08 1992  Mike Stump  (mrs at rtl.cygnus.com)
        !          1848: 
        !          1849:        * cp-decl.c (grokdeclarator):  Allow contructors to be friends.
        !          1850:        Cannot find anything prohibiting it.
        !          1851: 
        !          1852:        Mon Apr 27 13:26:20 1992  Mike Stump  (mrs at rtl.cygnus.com)
        !          1853: 
        !          1854:        * cp-init.c (do_friend):  bullet proof handling of friends,
        !          1855:        fixes problem introduced on Apr 26 18:24:35.
        !          1856: 
        !          1857:        Sun Apr 26 23:18:24 1992  Mike Stump  (mrs at rtl.cygnus.com)
        !          1858: 
        !          1859:        * cp-call.c (ideal_candidate):  Allow one to overload static
        !          1860:        member functions without dumping core.
        !          1861: 
        !          1862:        Sun Apr 26 18:44:57 1992  Jim Wilson  ([email protected])
        !          1863: 
        !          1864:        * cp-tree.c (break_out_calls): Call build1 instead of build for
        !          1865:        trees with only one operand to avoid abort in build.
        !          1866: 
        !          1867:        Sun Apr 26 18:24:35 1992  Mike Stump  (mrs at rtl.cygnus.com)
        !          1868: 
        !          1869:        * cp-init.c (do_friend):  Allow extern "C" functions to be
        !          1870:        friends.
        !          1871: 
        !          1872:        Sat Apr 25 02:57:07 1992  Mike Stump  (mrs at rtl.cygnus.com)
        !          1873: 
        !          1874:        * cp-*.[chy]:  Fix all pedantic warnings to be pedwarn.
        !          1875: 
        !          1876:        Sat Apr 25 01:46:50 1992  Mike Stump  (mrs at rtl.cygnus.com)
        !          1877: 
        !          1878:        * cp-tree.c (break_out_calls):  Handle NULL_TREE properly.
        !          1879: 
        !          1880:        Fri Apr 24 23:49:39 1992  Mike Stump  (mrs at rtl.cygnus.com)
        !          1881: 
        !          1882:        * cp-type2.c (store_init_value):  Provide an error message
        !          1883:        about bad syntax instead of core dumping.
        !          1884: 
        !          1885:        Fri Apr 24 16:46:03 1992  Mike Stump  (mrs at rtl.cygnus.com)
        !          1886: 
        !          1887:        Fri Apr 24 18:55:45 1992  Chip Salzenberg  ([email protected])
        !          1888: 
        !          1889:        * cp-parse.y (component_decl):  Fix small problem to take us
        !          1890:        back down to 14 reduce/reduce errors.
        !          1891: 
        !          1892:        Thu Apr 23 19:48:54 1992  Mike Stump  (mrs at rtl.cygnus.com)
        !          1893: 
        !          1894:        Wed Apr 22 22:47:15 1992  Chip Salzenberg  ([email protected])
        !          1895: 
        !          1896:        * cp-type2.c (readonly_warning_or_error):  Eliminate arbitrary
        !          1897:         limit of 80 characters per warning message.
        !          1898: 
        !          1899:        Thu Apr 23 04:14:59 1992  Mike Stump  (mrs at rtl.cygnus.com)
        !          1900: 
        !          1901:        * cp-decl.c (grokdeclarator):  Handle const and volatile
        !          1902:        member functions properly.
        !          1903: 
        !          1904: Tue Apr 28 22:05:05 1992  Niklas Hallqvist  ([email protected])
        !          1905: 
        !          1906:        * tower-as.h (svr3 support): Generic svr3.h included.
        !          1907:        (SELECT_RTX_SECTION): m68k.h's version #undef'd in favour of svr3.h's.
        !          1908:        (CPP_PREDEFINES): Overriding svr3.h version.
        !          1909:        (STARTFILE_SPEC): Added crtbegin.o.
        !          1910:        (ASM_OUTPUT_SOURCE_FILENAME): Added ugly section directives to get
        !          1911:        rid of NCR assembler bug.
        !          1912:        (ASM_OUTPUT_IDENT): #undef'd svr3.h version.
        !          1913:        (NO_{DOLLAR,DOT}_IN_LABEL): Defined.
        !          1914:        (ASM_LONG): Defined.
        !          1915:        ({INIT,FINI,CONST}_SECTION_ASM_OP): Overrides svr3.h versions.
        !          1916:        (CTOR_LIST_{BEGIN,END}): New macros.
        !          1917:        (BSS_SECTION_ASM_OP): New macro.
        !          1918:        (ASM_OUTPUT_CONSTRUCTOR): New macro.
        !          1919:        (ASM_OUTPUT_LABELREF): Redefined svr3.h version.
        !          1920: 
        !          1921:        * tower.h (LIB_SPEC): Added -shlib support plus crtend.o.
        !          1922: 
        !          1923:        * configure (m68k-ncr-sysv): Defined xmake_file and tmake_file.
        !          1924: 
        !          1925: Tue Apr 28 21:27:10 1992  Michael Meissner  ([email protected])
        !          1926: 
        !          1927:        * mips.md (floatsidf2, floatsisf2): Fix typo in last change.
        !          1928: 
        !          1929: Tue Apr 28 18:21:02 1992  Richard Stallman  ([email protected])
        !          1930: 
        !          1931:        * objc-actions.c: Include obstack.h, etc.
        !          1932:        (util_obstack, util_firstobj): New obstack, and 1st object in it.
        !          1933:        (init_objc): Init those two.
        !          1934:        (encode_*): Rewrite to use util_obstack,   Callers changed.
        !          1935:        (handle_class_ref, handle_impent): New subroutines, broken out
        !          1936:        from finish_objc so each can use alloca (instead of utlbuf).
        !          1937:        (utlbuf): Variable deleted.
        !          1938: 
        !          1939:        * c-decl.c (init_decl_processing): Treat abort and exit as ANSI.
        !          1940:        -traditional no longer affects ANSI builtins; use -fno-builtin.
        !          1941: 
        !          1942:        * configure: Insert assignment of INSTALL where old one was.
        !          1943: 
        !          1944: Tue Apr 28 17:14:57 1992  John F Carr  (jfc at Achates.mit.edu)
        !          1945: 
        !          1946:        * vax.md (cmpdf, cmpsf): Use tstf/tstd if second argument is zero.
        !          1947:        (movsi, movhi, movqi): Patterns changed to reflect different
        !          1948:        space/time tradeoffs for modern VAXes.
        !          1949:        (movstricthi, movstrictqi): New patterns.
        !          1950:        (extv, extzv): Use rotl/bicl sequence when possible.
        !          1951: 
        !          1952: Tue Apr 28 10:00:25 1992  Michael Meissner  ([email protected])
        !          1953: 
        !          1954:        * mips-tfile.c (read_line): Make read_line act like the assembler,
        !          1955:        and use ';' to separate multiple logical lines.
        !          1956: 
        !          1957:        * mips.h (MIPS_VERSION): Set Meissner version # to 17.
        !          1958:        (MASK_DEBUG_C): Swap meaning of -mdebugc.
        !          1959:        (ADDITIONAL_REGISTER_NAMES): Use 'cc' for the floating point status
        !          1960:        register, so user asm's can clobber it.  Allow $fp for the frame
        !          1961:        pointer in addition to fp and $30, and also $sp for the stack
        !          1962:        pointer in addition to sp and $29.
        !          1963: 
        !          1964:        * mips.c (gen_int_relational): Emit faster sequence for NE.
        !          1965:        (mips_asm_file_start): Don't call data_section for gcc2_compiled.
        !          1966: 
        !          1967:        * mips.md (branch define_delay): Specify all of the preconditions
        !          1968:        correctly for branch likely (mips2) support.
        !          1969:        (floatsidf2): Update dslots_load_total.  Support getting the
        !          1970:        integer value from memory as well as from an integer register.
        !          1971:        Fix the length attribute.
        !          1972:        (floatsisf2): Ditto.
        !          1973:        (All set from condition code patterns): Swap meaning of -mdebugc,
        !          1974:        so that if used, it means support all of the set condition code
        !          1975:        patterns as if the machine can do them equally well.  If not
        !          1976:        -mdebugc, call gen_int_relational to generate an appropriate set
        !          1977:        of INSNs.
        !          1978: 
        !          1979:        * decrose.h (ASM_IDENTIFY_GCC): Define as null on OSF/1.
        !          1980:        * encrose.h (ASM_IDENTIFY_GCC): Define as null on OSF/1.
        !          1981:        * i386rose.h (ASM_IDENTIFY_GCC): Define as null on OSF/1.
        !          1982: 
        !          1983:        * decrose.h (CPP_SPEC): If .S files, add an explicit
        !          1984:        -ULANGUAGE_C to mimic the OSF GCC 1.39 behavior.
        !          1985: 
        !          1986: Mon Apr 27 16:44:30 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          1987: 
        !          1988:        * dwarf.h (AT_... values): Correct typos present in version 1.0.1
        !          1989:        of the DWARF spec.  The values should be unchanged.
        !          1990: 
        !          1991:        * dwarfout.c (data_member_location_attribute): Use INTEGER_CST.
        !          1992: 
        !          1993:        * dwarfout.c (data_member_location_attribute): Use TYPE_MODE.
        !          1994:        (bit_offset_attribute): Ditto.
        !          1995: 
        !          1996:        * dwarfout.c (name_attribute): Add the tests back.
        !          1997: 
        !          1998:        * m88k.h (WEAK_ASM_OP): Override svr4.h.
        !          1999: 
        !          2000: Mon Apr 27 15:48:36 1992  Richard Stallman  ([email protected])
        !          2001: 
        !          2002:        * limits.h: Use _LIMITS_H___, not _LIMITS_H_, to protect contents.
        !          2003: 
        !          2004: Mon Apr 27 15:15:25 1992  Michael Meissner  ([email protected])
        !          2005: 
        !          2006:        * mips.h (MIPS_VERSION): Set Meissner version # to 16.
        !          2007:        (delay_type enum): Add DELAY_FCMP for specifing the
        !          2008:        c.{eq,lt,le}.{d,s} delay.
        !          2009:        (fpsw_register_operand): New declaration.
        !          2010:        (gen_int_relational): New declaration.
        !          2011:        (pc_or_label_operand): New declaration.
        !          2012:        (MASK_DEBUG_C): Use -mdebugc for new relational code.
        !          2013:        (REG_CLASS_FROM_LETTER): Use 'z' for fpsw register, not 's' which
        !          2014:        is already used.
        !          2015:        (EXTRA_CC_MODES): Add CC_REV_FPmode to handle fp comparisons,
        !          2016:        which need to be reversed (!=).
        !          2017:        (EXTRA_CC_NAMES): Add CC_REV_FP.
        !          2018:        (SELECT_CC_MODE): Use SImode for all integer comparisons,
        !          2019:        CC_REV_FP for floating point != comparisons.
        !          2020: 
        !          2021:        * mips.c (internal_test enum): Move and rename the enumeration
        !          2022:        used in gen_conditional to make the comparison RTL codes to
        !          2023:        something that can be indexed out to top level.
        !          2024:        (fpsw_register_operand): New function to return true if the
        !          2025:        operand is the FP status register.
        !          2026:        (pc_or_label_operand): New function to return true if the operand
        !          2027:        is either a label_ref or the pc for if_then_else tests.
        !          2028:        (mips_fill_delay_slot): Add support for DELAY_FCMP, the delay
        !          2029:        after a floating point comparison is done and it can be tested.
        !          2030:        (map_test_to_internal_test): New function to take a RTL code of a
        !          2031:        comparison operator, and return the internal_test enumeration.
        !          2032:        (gen_int_relational): New function to generate the appropriate
        !          2033:        INSNS for comparing two integers for either branches, or the set
        !          2034:        from condition code insns.
        !          2035:        (gen_conditional_branch): Rewrite to not use the CISC condition
        !          2036:        code register CC0, but instead generate the appropriate INSNs so
        !          2037:        that the test can be scheduled independely of the branch.
        !          2038:        (override_options): Use 'z' for the fpsw register, not 's'.  Only
        !          2039:        allow the fp comparison condition codes in the fpsw register.  Do
        !          2040:        not allow non float or int things in FP registers, even if
        !          2041:        -mdebugh.  Don't allow ints in the fpsw.
        !          2042: 
        !          2043:        * mips.md (various): Rewrite comparisons and branches so that we
        !          2044:        do not use CC0, but instead put the comparison in a pseudo and
        !          2045:        generate the appropriate branch instructions directly.  This
        !          2046:        eliminates calls to the various b<xx> macros provided by the
        !          2047:        assembler.  Change the type of integer comparisons from the
        !          2048:        various CCxx modes used to SImode.  Make fp != use CC_REV_FPmode.
        !          2049:        (mode attribute): Add FPSW mode for floating compare.
        !          2050:        (fp_comp): New functional unit for comparing fp values.
        !          2051:        (divmodsi4): No longer use -mdebugc to turn off divmodsi4.
        !          2052:        (divsi3): Ditto.
        !          2053:        (modsi3): Ditto.
        !          2054:        (udivmodsi4): No longer use -mdebugc to turn off udivmodsi4.
        !          2055:        (udivsi3): Ditto.
        !          2056:        (umodsi3): Ditto.
        !          2057: 
        !          2058:        * mips-gn5.h: Rename from mips-gnews5.h for MSDOS.
        !          2059:        * mips-n5.h: Rename from mips-news5.h.
        !          2060:        * xm-mipsbsdnews.h: Rename from xm-mipsnbsd.h.
        !          2061: 
        !          2062:        * configure (mips-sony*): Handle the above changes.
        !          2063: 
        !          2064:        * README-mips (whole file): Remove bogus patches, and update with
        !          2065:        some common warnings about the MIPS.
        !          2066: 
        !          2067: Mon Apr 27 12:41:21 1992  Jim Wilson  ([email protected])
        !          2068: 
        !          2069:        * unroll.c (find_splittable_givs): Don't split a giv combined with
        !          2070:        a giv that was not reduced.
        !          2071: 
        !          2072:        * c-parse.y (primary): Clear the TREE_USED flag of a block tree
        !          2073:        put in a BIND_EXPR.
        !          2074:        * print-tree.c (print_node): Print the block operand of a BIND_EXPR.
        !          2075: 
        !          2076:        * flow.c (find_basic_blocks): Assume MEM source in jump insn makes
        !          2077:        it an indirect jump.
        !          2078: 
        !          2079:        * collect2.c (strip_flag, strip_file_name): New variables.
        !          2080:        (main): Don't pass -s to the first ld call.  Pass it to the second
        !          2081:        ld call, or else run strip.
        !          2082: 
        !          2083:        * Makefile.in (bootstrap): Only build C compiler for stage1.
        !          2084: 
        !          2085:        * sparc.h (GO_IF_LEGITIMATE_ADDRESS): Rewrite to accept SUBREGs.
        !          2086: 
        !          2087:        * combine.c (force_to_mode): Correctly form mask from BITS.
        !          2088: 
        !          2089:        * Makefile.in (bootstrap): Fix a typo (\n between b and ootstrap).
        !          2090: 
        !          2091: Sun Apr 26 14:14:23 1992  Ron Guilmette  (rfg at ncd.com)
        !          2092: 
        !          2093:        * getattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c,
        !          2094:        genextract.c, genflags.c, genoutput.c, genpeep.c, genrecog.c (main):
        !          2095:        Move nested extern declaration of `read_rtx' out to file-scope.
        !          2096: 
        !          2097: Sun Apr 26 21:41:33 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          2098: 
        !          2099:        * Makefile.in (varasm.o): Includes defaults.h.
        !          2100: 
        !          2101: Sun Apr 26 21:15:30 1992  Richard Stallman  ([email protected])
        !          2102: 
        !          2103:        * enquire.c (f_rep, f_define): Handle NO_LONG_DOUBLE_IO.
        !          2104:        (f_define): Print defn of union __convert_long_double, just once,
        !          2105:        with #ifndef to protect it.
        !          2106:        (fake_f_define): New function.
        !          2107: 
        !          2108: Sat Apr 25 15:04:49 1992  Richard Stallman  ([email protected])
        !          2109: 
        !          2110:        * stmt.c (expand_end_case): Test DI index against range before casesi.
        !          2111:        Don't truncate before calling do_tablejump.
        !          2112:        Use expand_expr to turn RANGE into rtl.
        !          2113:        * expr.c (do_tablejump): Convert to Pmode after testing vs range.
        !          2114: 
        !          2115:        * stmt.c (expand_end_case): Delete test default_label != 0; always is.
        !          2116: 
        !          2117:        * configure (i386-ibm-aix): Set install_with_cp.
        !          2118: 
        !          2119: Fri Apr 24 21:32:38 1992  Richard Stallman  ([email protected])
        !          2120: 
        !          2121:        * xm-spcv4.h: Renamrd from xm-sparcv4.h.
        !          2122:        * configure: Changed accordingly.
        !          2123: 
        !          2124:        * Makefile.in (unprotoize.o): Leave unprotoize.c around.
        !          2125: 
        !          2126:        * c-common.c (decl_attributes): Change warnings to errors.
        !          2127: 
        !          2128: Fri Apr 24 11:17:53 1992  Ron Guilmette  (rfg at ncd.com)
        !          2129: 
        !          2130:        * dwarf.h:  Added copyleft.
        !          2131:        Revised to use enumerators instead of #defines.
        !          2132:        Updated to conform to version 1.0.1 of the DWARF spec.
        !          2133:        Added implementation-defined fundamental type codes for GCC
        !          2134:        mode-specific types.
        !          2135: 
        !          2136:        * dwarfout.c: Include defaults.h.
        !          2137:        (getpwd):  Declare as `extern'.
        !          2138:        (BITFIELD_OFFSET_BITS, BITFIELD_OFFSET_UNITS,
        !          2139:        BITFIELD_OFFSET_WORDS_IN_UNITS):  Unnecessary definitions deleted.
        !          2140:        (ASM_BYTE_OP, PUSHSECTION_ASM_OP, POPSECTION_ASM_OP):  Delete
        !          2141:        leading tabs from definitions.
        !          2142:        (PUSHSECTION_FORMAT):  Add leading tab to definition.
        !          2143:        (*_LABEL):  Changed to all start with `.L' to internalize these
        !          2144:        symbols for *all* svr4 assmeblers (including sparc).
        !          2145:        (ASM_OUTPUT_POP_SECTION):  Add leading tab.
        !          2146:        (ASM_OUTPUT_DWARF_TAG, ASM_OUTPUT_DWARF_ATTRIBUTE,
        !          2147:        ASM_OUTPUT_DWARF_STACK_OP, ASM_OUTPUT_DWARF_FUND_TYPE,
        !          2148:        ASM_OUTPUT_DWARF_FMT_BYTE, ASM_OUTPUT_DWARF_TYPE_MODIFIER):  Print
        !          2149:        DWARF comments only if flag_verbose_asm set.
        !          2150:        (ASM_OUTPUT_ASCII):  Moved to defaults.h
        !          2151:        (tag_name):  Renamed `dwarf_tag_name' to avoid possible conflicts.
        !          2152:        (dwarf_tag_name):  Updated for version 1.0.1 DWARF spec.
        !          2153:        (attribute_name):  Renamed `dwarf_attr_name' to avert conflicts.
        !          2154:        (dwarf_attr_name):  Updated for version 1.0.1 DWARF spec.
        !          2155:        (stack_op_name): Renamed `dwarf_stack_op_name' to avert conflicts.
        !          2156:        (format_byte_name): Renamed `dwarf_fmt_byte_name' to avert conflicts.
        !          2157:        (fundamental_type_name): Renamed `dwarf_fund_type_name' to avoid
        !          2158:        possible conflicts.
        !          2159:        (dwarf_fund_type_name):  Added support for implementation-defined
        !          2160:        GCC mode specific fundamental types codes (to support new `mode'
        !          2161:        attribute).
        !          2162:        (data_member_location_attribute):  Rewritten to avoid major lossage
        !          2163:        primarily for little-endian targets.
        !          2164:        (location_or_const_value_attribute):  Fixed comments and removed
        !          2165:        spurious code.
        !          2166:        (name_attribute):  Removed test for NULL name (now done in
        !          2167:        `name_and_src_coords_attributes').
        !          2168:        (byte_size_attribute):  Fixed to get size from DECL_BIT_FIELD_TYPE
        !          2169:        for bit-fields.
        !          2170:        (bit_offset_attribute):  Rewritten to avoid major lossage primarily
        !          2171:        for little-endian targets.
        !          2172:        (src_coords_attribute):  GNU-specific extension added.
        !          2173:        (name_and_src_coords_attributes):  New function.
        !          2174:        (output_entry_point_die, output_formal_parameter_die,
        !          2175:        output_global_subroutine_die, output_global_variable_die,
        !          2176:        output_inline_subroutine_die, output_label_die,
        !          2177:        output_local_variable_die, output_member_die,
        !          2178:        output_local_subroutine_die, output_typedef_die):  Call
        !          2179:        `name_and_src_coords_attributes' rather than `name_attribute' for
        !          2180:        all potentially-named declarations.
        !          2181:        (output_global_subroutine_die, output_inline_subroutine_die,
        !          2182:        output_local_subroutine_die, dwarfout_file_scope_decl):  Use
        !          2183:        DECL_ASSEMBLER_NAME rather than DECL_NAME when referencing
        !          2184:        assembly level names (e.g. in AT_low_pc attributes).
        !          2185:        (output_type):  Revised to produce DWARF info for C++ member functions
        !          2186:        even for classes with no constructors & destructors.
        !          2187: 
        !          2188:        * flags.h (flag_verbose_asm):  Option flag added.
        !          2189:        * toplev.c (flag_verbose_asm):  Option flag added.
        !          2190: 
        !          2191:        * defaults.h: New file.
        !          2192:        * varasm.c: Include defaults.h.
        !          2193:        (ASM_OUTPUT_ASCII): Deleted.
        !          2194: 
        !          2195:        * c-common.c (decl_attributes):  Call `type_for_mode' rather than
        !          2196:        `type_for_size'.  Also, `break' after a matching mode is found.
        !          2197: 
        !          2198:        * 3b1.h (ASM_OUTPUT_ASCII):  Tab before ASCII_DATA_ASM_OP.
        !          2199:        * amix.h (ASM_OUTPUT_CASE_END):  Tab before SET_ASM_OP.
        !          2200:        (ASM_OUTPUT_ASCII)  Tab before BYTE_ASM_OP.
        !          2201:        * i860b.h (ASM_OUTPUT_ASCII):  Tab before ASCII_DATA_ASM_OP.
        !          2202:        * i860v3.h (ASM_OUTPUT_ASCII):  Tab before BYTE_ASM_OP. 
        !          2203:        * sparcv4.h (*_ASM_OP): Delete the initial tabs.
        !          2204: 
        !          2205:        * assert.h:  Modified to treat source line numbers as `unsigned'.
        !          2206: 
        !          2207:        * Makefile.in (test-protoize): New target.
        !          2208: 
        !          2209:        * svr4.h (WEAK_ASM_OP):  Default svr4 definition added.
        !          2210:        (ASM_DECLARE_FUNCTION_SIZE):  Use `assemble_name' to output
        !          2211:        generated internal label.
        !          2212: 
        !          2213: Thu Apr 23 11:31:58 1992  Jim Wilson  ([email protected])
        !          2214: 
        !          2215:        * optabs.c (emit_libcall_block): Correct code which determines
        !          2216:        whether it is safe to emit an insn setting a pseudo before the block.
        !          2217: 
        !          2218: Thu Apr 23 18:13:08 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          2219: 
        !          2220:        * i386.md (sleu): Finish Apr 21 change.
        !          2221: 
        !          2222: Thu Apr 23 14:15:05 1992  Michael Meissner  ([email protected])
        !          2223: 
        !          2224:        * Makefile.in (enquire.o): Delete enquire.c from the current
        !          2225:        directory before moving it in from the source directory, unless
        !          2226:        the current directory is the same as the source directory.  This
        !          2227:        occurs if the user keeps GCC under source control, like RCS.
        !          2228:        (install-common-headers): Ditto for byteorder.h.
        !          2229: 
        !          2230: Thu Apr 23 12:39:36 1992  Richard Stallman  ([email protected])
        !          2231: 
        !          2232:        * amix.h (ASM_OUTPUT_CASE_END): Add missing \.
        !          2233: 
        !          2234: Thu Apr 23 07:14:38 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          2235: 
        !          2236:        * cse.c (simplify_binary_operation, case MINUS): Don't do any
        !          2237:        of the simplifications for IEEE floating-point.
        !          2238: 
        !          2239: Wed Apr 22 23:20:59 1992  Mike Stump  ([email protected])
        !          2240: 
        !          2241:        Tue Apr 21 02:21:42 1992  Mike Stump  ([email protected])
        !          2242: 
        !          2243:        * cp-method.c (build_overload_value): Handle function names as
        !          2244:        constant expressions for template arguments.  Also, make double
        !          2245:        values work again as template arguments.
        !          2246: 
        !          2247:        Mon Apr 20 17:08:17 1992  Mike Stump  ([email protected])
        !          2248: 
        !          2249:        * cp-call.c (ideal_candidate):  remove incorrect error message about
        !          2250:        ``ambiguous request for function from distinct base classes of
        !          2251:        type'' when base and parent are switched.
        !          2252: 
        !          2253:        Mon Apr 20 14:14:35 1992  Mike Stump  ([email protected])
        !          2254: 
        !          2255:        * Makefile.in:  Now expect 15 reduce/reduce conflicts, instead of 14.
        !          2256: 
        !          2257:        Mon Mar 16 14:02:09 1992  Chip Salzenberg  (chip at tct.com)
        !          2258: 
        !          2259:        * cp-parse.y (maybe_attributes, attribute_list):  clone
        !          2260:        from c-parse.y.
        !          2261:        cp-parse.y:  call decl_attributes between start_decl and
        !          2262:        finish_decl, and after grokfield.
        !          2263: 
        !          2264:        Mon Apr 20 09:21:00 1992  Jim Wilson  ([email protected])
        !          2265: 
        !          2266:        * cp-tree.h (break_out_calls): Declare.
        !          2267: 
        !          2268:        Mon Apr 20 08:29:16 1992  Michael Tiemann  ([email protected])
        !          2269: 
        !          2270:        * cp-tree.c (break_out_calls): New function.
        !          2271:        (break_out_cleanups): Added comment.
        !          2272: 
        !          2273:        * cp-typeck.c (build_modify_expr): Call `break_out_calls' instead of
        !          2274:        `copy_to_permanent'.
        !          2275: 
        !          2276:        Mon Apr 20 06:29:16 1992  Mike Stump  ([email protected])
        !          2277: 
        !          2278:        * cp-type2.c (my_friendly_abort):  New function, please see
        !          2279:        Rational there.
        !          2280: 
        !          2281:        * cp-*.[chy]:  Change all calls from abort to my_friendly_abort.
        !          2282: 
        !          2283:        Mon Apr 20 05:45:08 1992  Mike Stump  ([email protected])
        !          2284: 
        !          2285:        * cp-cvt.c (build_up_reference):  Fix a latent const problem.
        !          2286: 
        !          2287:        Mon Apr 20 03:08:12 1992  Michael Tiemann  ([email protected])
        !          2288: 
        !          2289:        * cp-decl.c (pop_from_top_level): Deleted duplicate code in C_C_D
        !          2290:        restoration.
        !          2291: 
        !          2292:        * cp-call.c (build_method_call): Call `error_with_aggr_type' with
        !          2293:        correct number of arguments.
        !          2294: 
        !          2295:        Sun Apr 19 18:39:25 1992  Mike Stump  ([email protected])
        !          2296: 
        !          2297:        * cp-class.c (finish_struct): Only provide a warning about
        !          2298:        non-virtual destructors if the user asks for -Wall.
        !          2299: 
        !          2300:        Sun Apr 19 17:36:16 1992  Mike Stump  ([email protected])
        !          2301: 
        !          2302:        * cp-typeck.c (build_modify_expr):  Make a deep copy of lhs, as
        !          2303:        expr.c expects to be able to preexpand_calls on the conditional
        !          2304:        parts without insuring that it would even be legal to do so.
        !          2305: 
        !          2306:        * cp-tree.c (make_deep_copy):  Fix comment.
        !          2307: 
        !          2308:        Fri Apr 17 04:55:18 1992  Mike Stump  ([email protected])
        !          2309: 
        !          2310:        * cp-cvt.c (convert_pointer_to):  Provide the user with a meaningful
        !          2311:        error message instead of a core dump when dealing with bad syntax.
        !          2312: 
        !          2313:        * cp-typeck.c (build_binary_op):  Make error message on undefined
        !          2314:        operator call more readable.
        !          2315: 
        !          2316:        * cp-decl.c (grok_reference_init):  Handle T& = const T&
        !          2317:        error messages.
        !          2318: 
        !          2319:        Thu Apr 16 18:59:15 1992  Mike Stump  ([email protected])
        !          2320: 
        !          2321:        * cp-typeck.c (convert_arguments): Disable code that auto converted
        !          2322:        functions and methods to pointers and left them that way without error.
        !          2323: 
        !          2324:        Thu Apr 16 17:35:13 1992  Mike Stump  ([email protected])
        !          2325: 
        !          2326:        Sat Apr  4 22:28:23 1992  Gerald Baumgartner  (gb at cs.purdue.edu)
        !          2327: 
        !          2328:        * cp-decl.c (finish_decl): Call `abstract_virtuals_error'
        !          2329:        when the return type of a method is an abstract class.
        !          2330: 
        !          2331:        * cp-type2.c (abstract_virtuals_error): Print error message
        !          2332:        for an invalid method declaration.
        !          2333: 
        !          2334:        Thu Apr 16 16:18:35 1992  Mike Stump  ([email protected])
        !          2335: 
        !          2336:        * cp-decl2.c (lang_decode_option): Handle import by ignoring it.
        !          2337: 
        !          2338: Wed Apr 22 19:46:44 1992  Richard Stallman  ([email protected])
        !          2339: 
        !          2340:        * objc-actions.c (synth_id_with_class_suffix, finish_class):
        !          2341:        Don't use utlbuf; alloca a buffer.
        !          2342:        (forward_declare_categories): Use build_decl directly since
        !          2343:        create_builtin_decl wants a string, not an id.
        !          2344: 
        !          2345:        * Makefile.in (STAGESTUFF): Add USE_COLLECT2.
        !          2346: 
        !          2347:        * dbxout.c (dbxout_symbol): Clean up last change.
        !          2348: 
        !          2349: Wed Apr 22 17:06:16 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          2350: 
        !          2351:        * rs6000.c (gpc_reg_operand): Renamed from gen_reg_operand.
        !          2352:        * rs6000.h (PREDICATE_CODES): Likewise.
        !          2353:        * rs6000.md: Likewise.
        !          2354: 
        !          2355:        * a29k.c (gpc_reg*_operand): Renamed from gen_reg*_operand.
        !          2356:        * a29k.h (PREDICATE_CODES): Likewise.
        !          2357:        * a29k.md: Likewise.
        !          2358: 
        !          2359:        * romp.c (output_fpop): Extend workaround for RT FP codegen bug.
        !          2360: 
        !          2361: Wed Apr 22 06:20:09 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          2362: 
        !          2363:        * fold-const.c (fold, comparison cases): Use omit_one_operand to
        !          2364:        yield a simplified result to avoid loosing a side-effect.
        !          2365: 
        !          2366: Tue Apr 21 13:19:42 1992  Richard Stallman  ([email protected])
        !          2367: 
        !          2368:        * dbxout.c (dbxout_symbol): For TYPE_DECL, always make requisite tag
        !          2369:        one way or another even if !have_used_extensions.
        !          2370: 
        !          2371:        * configure: Specifically detect unrecognized options.
        !          2372: 
        !          2373: Tue Apr 21 08:16:05 1992  Tom Wood  (wood  at dg-rtp.dg.com)
        !          2374:  
        !          2375:        * c-convert.c (convert_to_integer): Don't distribute a truncation
        !          2376:        down past an ABS_EXPR. 
        !          2377:  
        !          2378:        * m88k.md (bxx insn): Choose bb0 over bb1 if the branch is likely
        !          2379:        to fall-through (m88110 optimization).
        !          2380:        * m88k.c (mostly_false_jump): New function.
        !          2381: 
        !          2382:        * m88k.h (INIT_SECTION_ASM_OP): Define only for svr3 and svr4 targets.
        !          2383: 
        !          2384:        * m88k.c (output_call): Use the insn address of the sequence.
        !          2385:        * m88k.h (ADJUST_INSN_LENGTH): Account for space added at barriers
        !          2386:        due to ASM_OUTPUT_ALIGN_CODE.
        !          2387: 
        !          2388: Tue Apr 21 07:30:46 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          2389: 
        !          2390:        * jump.c (mark_jump_label, case MEM): New case to look for label
        !          2391:        in a constant-pool entry.
        !          2392: 
        !          2393: Tue Apr 21 00:41:39 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          2394: 
        !          2395:        * reg-stack.c (compare_for_stack_reg): link cc0 user and setter
        !          2396:        before separating them.
        !          2397: 
        !          2398:        * reorg.c (link_cc0_insns): Move function from here -
        !          2399:        * emit-rtl.c (link_cc0_insns): to here.
        !          2400: 
        !          2401:        * i386.h (TARGET_IEEE_FP): New macro.
        !          2402:        (TARGET_SWITCHES): Add switches for ieee floating point support.
        !          2403:        (EXTRA_CC_MODES,EXTRA_CC_NAMES): Add CCFPEQmode.
        !          2404:        (SELECT_CC_MODE): Select CCFPEQmode for FP equality comparisons.
        !          2405:        (i386_compare_gen*,i386_compare_op*): Declare new variables to
        !          2406:        generate comparisons from within branch and sCC insns.
        !          2407:        (RTX_COSTS): Fix argument name typo.
        !          2408: 
        !          2409:        * i386.c (i386_compare_gen*,i386_compare_op*): Define variables here.
        !          2410:        (notice_update_cc): Notice if a comparison involves FP values.
        !          2411:        (output_float_compare): Add support for "unordered" compare.
        !          2412:        Use output_fp_cc0_set to set flags after a compare.
        !          2413:        (output_fp_cc0_set): New function.
        !          2414: 
        !          2415:        * i386.md (tstM,cmpM): New expanders.  Don't generate RTL; just
        !          2416:        save data for when cc0 user is generated.
        !          2417:        (bCOND,sCOND): New expanders.  Generate the compare/test as well
        !          2418:        as the bCOND or sCOND.
        !          2419: 
        !          2420:        (tstsf,tstdf): Disable patterns if generating ieee compliant code.
        !          2421:        (tstsf,tstdf,cmpsf,cmpdf): Use output_fp_cc0_set to set flags
        !          2422:        after test.
        !          2423:        Don't change cc_status here: that won't work with REG_CC_SETTER
        !          2424:        and REG_CC_USER.
        !          2425: 
        !          2426:        (all COMPAREs): Use CCmode as mode of a COMPARE.
        !          2427: 
        !          2428: Mon Apr 20 11:17:51 1992  Richard Stallman  ([email protected])
        !          2429: 
        !          2430:        * limits.h (LONG_LONG_MIN, LONG_LONG_MAX, ULONG_LONG_MAX): New macros.
        !          2431: 
        !          2432:        * configure: Clear out_file before the big case, like tm_file, etc.
        !          2433: 
        !          2434:        * expr.c (expand_expr, case LABEL_DECL): Handle label from outer fcn.
        !          2435: 
        !          2436: Mon Apr 20 10:17:49 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          2437: 
        !          2438:        * x-m88kluna: Delete.
        !          2439:        * x-m88kv3: Renamed from x-m88k.
        !          2440:        * configure (m88k-*): Rearrange.
        !          2441: 
        !          2442: Mon Apr 20 21:29:00 1992    (Eric Youngdale at [email protected])
        !          2443: 
        !          2444:        * config-gcc.com: Generate libgcc2.list from Makefile.in
        !          2445:        * make-l2.com: Use libgcc2.list; supply gcc version number to gas.
        !          2446: 
        !          2447:        * config-gacc.com: Generate linker options files from Makefile.in
        !          2448: 
        !          2449:        * make-cc1.com: Use said linker options files instead of static 
        !          2450:        list of files.
        !          2451:        * make-cc1.com: Handle errors better.
        !          2452: 
        !          2453: Mon Apr 20 10:05:34 1992  Michael Meissner  ([email protected])
        !          2454: 
        !          2455:        * mips.md (divmodsi4, udivmodsi4): Remove unneeded PARALLEL.  Patch
        !          2456:        from Richard Kenner.
        !          2457: 
        !          2458: Mon Apr 20 08:38:26 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          2459: 
        !          2460:        * expr.c (expand_expr, case CONSTRUCTOR): For static CONSTRUCTOR,
        !          2461:        require a valid memory address only if modifier does.
        !          2462: 
        !          2463: Sun Apr 19 15:09:01 1992  Richard Stallman  ([email protected])
        !          2464: 
        !          2465:        * genemit.c (gen_insn): Mode of SCRATCH must match in clobber lists.
        !          2466: 
        !          2467:        * sched.c (add_dependence, remove_dependence): Moved from rtl.c.
        !          2468:        * rtl.c: Functions deleted here.
        !          2469: 
        !          2470:        * Make installation of collect2 automatic.
        !          2471:        * configure: Define use_collect2 for all BSD and Mach and HP/UX
        !          2472:        configurations, plus the ones below, and a few others.
        !          2473:        * t-decrose, t-decstatn, t-encrose, t-i386rose, t-mips, t-next:
        !          2474:        (EXTRA_PROGRAMS): Deleted.
        !          2475:        * t-apollo68, t-convex, t-dpx2, t-rs6000: Files deleted.
        !          2476: 
        !          2477:        * libgcc1.c (nongcc_SI_type): Renamed from SItype.
        !          2478: 
        !          2479:        * recog.c (constrain_operands): Check only earlyclobbers that are REGs.
        !          2480: 
        !          2481:        * m68k.h (TRANSFER_FROM_TRAMPOLINE): Delete comma in globalize cmd.
        !          2482: 
        !          2483:        * m68k.md (movhi): Don't use switch_table_difference_label_flag
        !          2484:        except in ports that need it.  (Again!)
        !          2485: 
        !          2486: Sun Apr 19 14:06:59 1992  Jim Wilson  ([email protected])
        !          2487: 
        !          2488:        * sched.c (sched_analyze_2): Add missing comment close.
        !          2489: 
        !          2490:        * rtl.c (add_dependence): Make next point to last insn with
        !          2491:        SCHED_GROUP_P set, not after the last insn with the bit set.
        !          2492: 
        !          2493: Sun Apr 19 06:06:03 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          2494: 
        !          2495:        * genextract.c (walk_rtx): Fix typo in vector case.
        !          2496: 
        !          2497:        * hppa.h (RTX_COSTS): Add new argument OUTER_CODE.
        !          2498: 
        !          2499:        * Makefile.in (compare, compare3): Change $file to $$file.
        !          2500: 
        !          2501:        * romp.h (CONST_CONSTS): Clean up formatting of definition.
        !          2502: 
        !          2503:        * rs6000.md (extzv): Correct when we can use andi[lu].
        !          2504: 
        !          2505: Sat Apr 18 21:56:20 1992  Jim Wilson  ([email protected])
        !          2506: 
        !          2507:        * sparc.md (ashldi3): Compact operand numbers.
        !          2508: 
        !          2509:        From Jeffrey Law:
        !          2510:        * sparc.md (ldd, std peepholes): New peepholes to recognize cases
        !          2511:        where two ld (or st) insns could be replaced by a single ldd or std.
        !          2512:        * sparc.c (registers_ok_for_ldd): New function.  Return true if the
        !          2513:        given register pair is suitable for an ldd or std instruction.
        !          2514:        (memory_ok_for_ldd): Likewise, but for memory locations.
        !          2515: 
        !          2516: Sat Apr 18 17:22:32 1992  Richard Stallman  ([email protected])
        !          2517: 
        !          2518:        * c-lex.c (skip_white_space): Warn only for first carriage return.
        !          2519: 
        !          2520: Sat Apr 18 10:08:45 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          2521: 
        !          2522:        * genemit.c (struct clobber_ent): New structure.
        !          2523:        (gen_insn): See if the clobbers required to be added were seen
        !          2524:        for another insn.
        !          2525:        (output_add_clobbers): Write case statements for all insn codes
        !          2526:        using a particular clobber pattern.
        !          2527:        
        !          2528:        * cse.c (mention_regs): Always retun a value.
        !          2529: 
        !          2530:        * rs6000.md (call): Compact operand numbers.
        !          2531: 
        !          2532:        * genextract.c: Now includes insn-config.h.
        !          2533:        (struct extraction, struct code_ptr): New structures.
        !          2534:        (gen_insn): Record what extractions are needed and compare with
        !          2535:        those for previous insns.
        !          2536:        (mark_operand_seen): Function deleted.
        !          2537:        (walk_rtx): Use strings as path and just record; don't write.
        !          2538:        (print_path): Use strings for paths.
        !          2539:        (copystr): New function.
        !          2540:        (main): Write out all extractions here.
        !          2541:        * Makefile.in (genextract.o): Includes insn-config.h.
        !          2542: 
        !          2543:        * hppa*.h: Change references from hp800* files to hppa*.
        !          2544: 
        !          2545:        * rs6000.md (lshrdi3, ashrdi3): Fix typos.
        !          2546: 
        !          2547:        * rs6000.md (extzv): Correctly install last change.
        !          2548: 
        !          2549: Sat Apr 18 12:37:54 1992  John F Carr  (jfc at Achates.mit.edu)
        !          2550: 
        !          2551:        * expmed.c (store_bit_field): Storing into a bitfield in memory
        !          2552:        which is the size of a standard machine mode can be done with a
        !          2553:        simple move instruction.
        !          2554: 
        !          2555:        * c-lex.c (skip_white_space): carriage return (^M) is whitespace,
        !          2556:        but warn about ^M if pedantic.
        !          2557: 
        !          2558:        * cse.c (rtx_cost): New argument OUTER_CODE, the rtx code of the
        !          2559:        expression in which the rtx argument is contained.
        !          2560:        * expmed.c (init_expmed): Pass second argument to rtx_cost.
        !          2561:        * optabs.c (expand_binop, expand_twoval_binop, emit_cmp_insn): Likewise.
        !          2562:        * loop.c (init_loop, general_induction_var): Likewise.
        !          2563:        * vax.c (vax_rtx_cost, vax_address_cost): New functions.
        !          2564:        * vax.h (CONST_COSTS, RTX_COSTS, ADDRESS_COST): Call these
        !          2565:        functions.
        !          2566:        * romp.h (CONST_COSTS): Give constants different costs depending
        !          2567:        on whether they can fit into a 2 byte instruction, a 4 byte
        !          2568:        instruction, or would require insn splitting to use.
        !          2569:        * i386.h (CONST_COSTS, RTX_COSTS): Move PLUS case to RTX_COSTS.
        !          2570:        * m68k.h (CONST_COSTS): Constant in range -254..-136 is only cheap
        !          2571:        in a move insn, not as an operand to some other instruction.
        !          2572:        * config/*.h: Update machine descriptions to define CONST_COSTS
        !          2573:        and RTX_COSTS macros with 3 arguments.
        !          2574: 
        !          2575: Fri Apr 17 11:14:02 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          2576: 
        !          2577:        * reload.c (safe_from_earlyclobber): New function.
        !          2578:        * recog.c (constrain_operands): Verify that earlyclobber
        !          2579:        operands don't conflict with inputs.
        !          2580: 
        !          2581:        * combine.c (subst, case SUBREG): Don't fold paradoxical SUBREGs
        !          2582:        of constants.
        !          2583: 
        !          2584:        * cse.c (fold_rtx, case SUBREG): Extend previous change so it
        !          2585:        folds widened operations with one operand a constant.
        !          2586: 
        !          2587:        * expr.c (safe_from_p, case BIND_EXPR): Only look at operand 1.
        !          2588: 
        !          2589:        * cse.c (fold_rtx, case SUBREG): Don't fold paradoxical SUBREGs.
        !          2590:        Instead, when we have a narrowing SUBREG, see if it is narrowing
        !          2591:        the result of a widened arithmetic operation.
        !          2592: 
        !          2593: Fri Apr 17 09:16:56 1992  Charles Hannum  ([email protected])
        !          2594: 
        !          2595:        * Makefile.in (install-dir): Don't use '-' prefix on continuation line.
        !          2596: 
        !          2597: Fri Apr 17 06:52:00 1992  Richard Stallman  ([email protected])
        !          2598: 
        !          2599:        * toplev.c (rest_of_compilation):
        !          2600:        If -Wreturn-type, don't stop before jump.c.
        !          2601: 
        !          2602:        * calls.c (expand_call): Delete unused arg MODIFIER.
        !          2603:        * expr.c: Arg deleted from calls (those which had it).
        !          2604: 
        !          2605:        * ns32k.c (print_operand_address): Handle UTEK_ASM.
        !          2606:        (print_operand): Handle NO_IMMEDIATE_PREFIX_IF_SYMBOLIC.
        !          2607:        Abort if must get fp number as bits but cannot do so.
        !          2608:        * ns32k.h (TRAMPOLINE_TEMPLATE): Use PUT_ABSOLUTE_PREFIX.
        !          2609:        * ns32k.md (call, call_value): Handle ENCORE_ASM.
        !          2610:        * encore.h (PRINT_OPERAND): Just call print_operand.
        !          2611:        (CALL_MEMREF_IMPLICIT): Defined.
        !          2612: 
        !          2613:        * config.sub: encore implies bsd, not sysv.
        !          2614: 
        !          2615:        * stmt.c (expand_expr_stmt): Handle reference of volatile BLKmode.
        !          2616: 
        !          2617:        * vax.md (indirect_jump): Delete the extra condition.
        !          2618: 
        !          2619:        * configure (...-hpux): Set install_with_cp.
        !          2620: 
        !          2621:        * jump.c (delete_insn): After a label, go past other deleted labels.
        !          2622: 
        !          2623:        * m68k.md (movhi): Don't use switch_table_difference_label_flag
        !          2624:        except in ports that need it.
        !          2625: 
        !          2626:        * stmt.c (warn_if_unused_value): Don't warn for constant after comma.
        !          2627:        Don't warn for volatile decl or ref.
        !          2628: 
        !          2629:        * c-typeck.c (build_unary_op): ++ on void * warns if -Wpointer-arith.
        !          2630: 
        !          2631: Thu Apr 16 22:56:20 1992  Michael Meissner  ([email protected])
        !          2632: 
        !          2633:        * mips.h (enum block_move_type): New enumeration for classing what
        !          2634:        type of block move is used when splitting the last store off.
        !          2635:        (RTX_COSTS): Don't use -mdebugd to set multiply costs to 2.
        !          2636: 
        !          2637:        * mips.c (output_movstrsi): Take an additional argument to determine
        !          2638:        whether this block move is a normal block move, or one that has been
        !          2639:        split.  For the split block moves, there are two parts -- the first
        !          2640:        part is everything but the last store, and the second part is the
        !          2641:        last store, suitable to fill a delay slot.
        !          2642: 
        !          2643:        * mips.md (all define_splits): Don't do any define_split if
        !          2644:        -mdebugd.
        !          2645:        (movstrsi_internal*): Add support to split block moves into two
        !          2646:        pieces, one that is everything except for the last store, and the
        !          2647:        second piece, which is the last store that can fill a delay slot.
        !          2648: 
        !          2649: Thu Apr 16 21:52:59 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          2650: 
        !          2651:        * x-rs6k-mach: New file.
        !          2652:        * configure (rs6000-*-mach): Use it.
        !          2653: 
        !          2654: Thu Apr 16 21:52:17 1992  John F Carr  (jfc at Achates.mit.edu)
        !          2655: 
        !          2656:        * cse.c (cse_end_of_basic_block): Fix test for infinite loop.
        !          2657: 
        !          2658: Thu Apr 16 21:50:38 1992  Jim Wilson  ([email protected])
        !          2659: 
        !          2660:        * rs6000.h (bss_section): Delete.  No longer needed.
        !          2661: 
        !          2662:        * a29k.c (print_operand, case 'F'): Always emit insn to fill empty
        !          2663:        delay slot.
        !          2664: 
        !          2665: Thu Apr 16 18:45:41 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          2666: 
        !          2667:        * cse.c (simplify_ternary_operation): Correctly sign-extend result.
        !          2668: 
        !          2669: Thu Apr 16 18:43:55 1992  Richard Stallman  ([email protected])
        !          2670: 
        !          2671:        * objc-actions.c: Rename OBJC_NONUNIQUE_SELECTORS to
        !          2672:        OBJC_SELECTORS_WITHOUT_LABELS.
        !          2673: 
        !          2674:        * c-decl.c (duplicate_decls): Allow extern vs extern inline.
        !          2675: 
        !          2676:        * c-parse.y (parmlist_or_identifiers_1): Use parmlist_1.
        !          2677:        * c-decl.c (get_parm_info): Treat forward parm decls like nonparm
        !          2678:        decls.
        !          2679: 
        !          2680:        * m68k.md (movhi before dispatch table):
        !          2681:        Set switch_table_difference_label_flag.
        !          2682:        * 3b1.h, amix.h, m68ksgs.h (ASM_OUTPUT_CASE_END): Test that flag.
        !          2683:        Declare the flag.
        !          2684: 
        !          2685:        * m68k.c (output_function_prologue, print_operand_address): Add
        !          2686:        HPUX_ASM conds.
        !          2687: 
        !          2688:        * mips.c (output_block_move): If we get a case we can't handle,
        !          2689:        don't print anything--just abort, because that implies a bug.
        !          2690: 
        !          2691:        * c-decl.c (c_decode_option): -ansi sets flag_no_nonansi_builtin,
        !          2692:        not flag_no_builtin.
        !          2693:        (init_decl_processing): Check flag_no_nonansi_builtin for alloca, etc.
        !          2694: 
        !          2695:        * dbxout.c (dbxout_symbol): Make pointer, not reference,
        !          2696:        when variable's address is in a register.
        !          2697: 
        !          2698:        * c-decl.c (c_decode_option): Ignore -Wimport, -Wno-import.
        !          2699: 
        !          2700: Thu Apr 16 16:17:13 1992  Mike Stump  ([email protected])
        !          2701: 
        !          2702:        * merge in Cygnus changes...
        !          2703: 
        !          2704:        Thu Apr 16 12:23:06 1992  Mike Stump  ([email protected])
        !          2705: 
        !          2706:        * cp-call.c (build_method_call): propagate const around to avoid an
        !          2707:        incorrect error message.  This type of fix may now be necessary in
        !          2708:        other parts of the compiler.  This solves all but one known const
        !          2709:        problems.
        !          2710: 
        !          2711:        Wed Apr 15 14:18:27 1992  Mike Stump  ([email protected])
        !          2712: 
        !          2713:        * cp-type2.c (readonly_warning_or_error):  because the compiler
        !          2714:        is now warning about const alot more, for a release or two,
        !          2715:        lets just warn about const problems, just in case it is a compiler
        !          2716:        problem and not a user problem.
        !          2717:        
        !          2718:        * cp-cvt.c (build_up_reference): Lets get tougher on const problems
        !          2719:        on COMPONENT_REFs.
        !          2720: 
        !          2721:        Wed Apr 15 11:59:42 1992  Jim Wilson  ([email protected])
        !          2722: 
        !          2723:        * cp-decl.c (finish_function): Check for any debug info enabled,
        !          2724:        not just DBX_DEBUG.
        !          2725: 
        !          2726:        Wed Apr 15 10:03:36 1992  Mike Stump  ([email protected])
        !          2727: 
        !          2728:        * cp-cvt.c (build_up_reference): Propagate const and volatile
        !          2729:        down into the type so error checking works better.
        !          2730: 
        !          2731:        Tue Apr 14 11:44:32 1992  Mike Stump  ([email protected])
        !          2732: 
        !          2733:        * cp-decl.c (start_decl):  Shouldn't use flag_this_is_variable
        !          2734:        to make what this points to const, but I don't have the heart
        !          2735:        to do it right now.
        !          2736:        
        !          2737:        * cp-decl2.c (grokclassfn):  Don't use flag_this_is_variable
        !          2738:        to make what this points to const.
        !          2739: 
        !          2740:        * cp-typeck.c (convert_arguments):  Let build_up_reference handle
        !          2741:        const errors correctly.  Removes April 10 change.
        !          2742:        
        !          2743:        * cp-cvt.c (build_up_reference):  Don't let people subvert const
        !          2744:        when passing const argements to non-const functions.
        !          2745: 
        !          2746:        * cp-tree.c (build_cplus_method_type): Don't use
        !          2747:        flag_this_is_variable to make what this points to const.
        !          2748: 
        !          2749:        From Wed Apr  1 12:00:59 1992  Chip Salzenberg  (chip at tct.com)
        !          2750: 
        !          2751:         * cp-class.c (import_export_vtable): New function to set
        !          2752:           TREE_PUBLIC and/or TREE_EXTERNAL on vtables.
        !          2753:           (build_vtable): Use it.
        !          2754:           (prepare_fresh_vtable): Use it.
        !          2755: 
        !          2756:         * cp-decl.c (finish_decl): Don't assume that TREE_PUBLIC means
        !          2757:           "exported"; it can mean "imported".  Decide with TREE_EXTERNAL.
        !          2758:           (finish_function): Ditto.
        !          2759:         * cp-decl2.c (write_vtable_entries): Ditto.
        !          2760:           (finish_vtable_typedecl): Ditto.
        !          2761:           (finish_vtable_vardecl): Ditto.
        !          2762:           (finish_file): Ditto.
        !          2763: 
        !          2764:         * cp-lex.c (set_vardecl_interface_info): Public objects always
        !          2765:           have TREE_PUBLIC, whether exported or imported.
        !          2766:         * cp-pt.c (instantiate_member_templates): Ditto.
        !          2767: 
        !          2768: 
        !          2769:        Fri Apr 10 21:44:15 1992  Per Bothner  ([email protected])
        !          2770: 
        !          2771:        * cp-method.c (build_overload_name): Mangle 'signed char'
        !          2772:        as 'Sc' (i.e. differently from 'char'!).
        !          2773: 
        !          2774:        Fri Apr 10 17:38:04 1992  Mike Stump  ([email protected])
        !          2775: 
        !          2776:        * cp-typeck.c (convert_arguments): don't allow people to wipe const.
        !          2777: 
        !          2778:        Thu Apr  9 18:28:36 1992  Mike Stump  ([email protected])
        !          2779: 
        !          2780:        * cp-tree.h:  Add entry for $vb and $vf so that NO_DOLLAR_IN_LABEL
        !          2781:        works.
        !          2782:        * cp-class.c (finish_struct):  Use the new macros from cp-tree.h.
        !          2783:        * cp-tree.c (layout_basetypes):  Use the new macros from cp-tree.h.
        !          2784: 
        !          2785:        Thu Apr  9 02:11:01 1992  Mike Stump  ([email protected])
        !          2786: 
        !          2787:        * cp-typeck.c (build_function_call_real): Merge in a change made to
        !          2788:        the C front end into the C++ front end to handle volatile functions.
        !          2789: 
        !          2790:        Thu Apr  9 03:45:03 1992  Mark Eichin  (eichin at cygnus.com)
        !          2791: 
        !          2792:        * cp-class.c (finish_struct): sanity check before calling popclass.
        !          2793:        If we're already hosed due to previous parse errors (specifically,
        !          2794:        we're not inside a class anymore) just report an error rather than
        !          2795:        crashing in popclass (if there wasn't a previous parse error, as the
        !          2796:        message suggests, we should get reports; this closes gcc/p0000525.)
        !          2797: 
        !          2798:        Wed Apr  8 08:56:49 1992  Mike Stump  ([email protected])
        !          2799: 
        !          2800:        * cp-decl.c (grokdeclarator): Fix an eichin bug introduced seconds
        !          2801:        ago.  Shame, he didn't put:
        !          2802: 
        !          2803:        Workaround for p869:
        !          2804:         1) grokdeclarator (around cp-decl.c:7462) is using popclass(1)
        !          2805:         uses popclass(1) to close the pushclass(3) done by
        !          2806:         build_push_scope; however, it's coming around another time and
        !          2807:         popping all the way out, which leads to the core dump when
        !          2808:         do_friend is called from global scope (do_friend uses
        !          2809:         current_class_name to figure out whose friendship it is
        !          2810:         bestowing.) Current workaround: if (friendp) don't allow
        !          2811:         popping all the way out. We still need to figure out how to
        !          2812:         make sure it only gets called the *right* time; we also need
        !          2813:         to figure out if the correct scope is being used, but that's a
        !          2814:         matter of regression testing.
        !          2815: 
        !          2816:        into a ChangeLog entry.
        !          2817: 
        !          2818:        Wed Apr  8 01:10:44 1992  Mike Stump  ([email protected])
        !          2819: 
        !          2820:        * cp-decl.c: Cleanup binding_levels_sane related code.  Deleted
        !          2821:        argument, and changed to void type.  Removed extraneous asserts.
        !          2822: 
        !          2823:        * cp-parse.y: Add fourth parameter to all finish_decl calls.
        !          2824:        Defaulted the guess to 0.
        !          2825:        * cp-decl.c: consistently use #if on all PARANOIDs.
        !          2826: 
        !          2827: Wed Apr 15 14:00:14 1992  Michael Meissner  ([email protected])
        !          2828: 
        !          2829:        * mips.md (movstrsi_internal): Add '&' constraint on clobbers.
        !          2830: 
        !          2831:        * mips.c (output_movstrsi): If one of our temporary registers is
        !          2832:        used as an address register, don't use it and emit a warning.  This
        !          2833:        is a temporary measure.
        !          2834: 
        !          2835: Wed Apr 15 09:04:22 1992  Richard M. Stallman  (rms at lyssenko)
        !          2836: 
        !          2837:        * xm-ns32k.h (memcpy, memcmp, memset): New macro definitions.
        !          2838:        * rtl.c (gcc_memset): New function.
        !          2839: 
        !          2840: Wed Apr 15 09:03:28 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          2841: 
        !          2842:        * m88k.md (umulsidi3): Define for m88110.
        !          2843:        (unit attribute): Define.
        !          2844: 
        !          2845:        * x-m88kdgux (INSTALL_HEADERS): Define as empty.
        !          2846: 
        !          2847: Tue Apr 14 13:28:11 1992  Jim Wilson  ([email protected])
        !          2848: 
        !          2849:        * c-lex.c (yylex): When warn_traditional, don't abort for harmless
        !          2850:        type differences.  Instead warn of possible problems on other systems.
        !          2851: 
        !          2852:        * rtl.c (add_dependence): Skip notes when HAVE_cc0.
        !          2853:        * sched.c (sched_analyze_2): Likewise.
        !          2854: 
        !          2855:        * sparc.md (movdf-1): Delete special case for moving 0.0 to integer
        !          2856:        registers; it resulted in poor code.
        !          2857:        (fix_truncdfsi2+1): Add patterns to optimize float->fix and
        !          2858:        float->fix->float conversions.
        !          2859:        * sparc.c (output_move_double): Clean up ldd/std code.  Don't emit
        !          2860:        ldd/std for obviously unaligned address even when TARGET_HOPE_ALIGN.
        !          2861:        (output_fp_move_double): Call output_move_double for MEM cases.
        !          2862:        It is not safe to assume double reg addresses are always aligned.
        !          2863: 
        !          2864: Tue Apr 14 07:55:47 1992  Torbjorn Granlund  ([email protected])
        !          2865: 
        !          2866:        * *hp800*, *hp700*: Rename to *hppa* and *hppa1.1*, respectively.
        !          2867:        * config.sub: Recognize PA model numbers for PA 1.0 and 1.1.
        !          2868:        Disable "hppa" with no model number.
        !          2869:        * configure: Update for new PA file names and basic_machine names.
        !          2870:        * README-PA-HPUX: New name for README-PA-RISC, with some corrections.
        !          2871: 
        !          2872: Tue Apr 14 05:46:37 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          2873: 
        !          2874:        * Makefile.in ("if" and "["): Romp, 4.3 BSD, and Ultirx systems
        !          2875:        fail when the condition is false.  Change troublesome instances to
        !          2876:        either use "case" or use '-' as a prefix to the compilation rule.
        !          2877: 
        !          2878: Mon Apr 13 18:20:56 1992  Mike Stump  ([email protected])
        !          2879: 
        !          2880:        * dwarfout.c: Add default definition for ASM_OUTPUT_ASCII
        !          2881:        as that is what varasm.c does now.  This really maybe should go
        !          2882:        into a file like tree.h or some machine independant file, for
        !          2883:        maintainability.
        !          2884: 
        !          2885: Mon Apr 13 18:16:32 1992  Jim Wilson  ([email protected])
        !          2886: 
        !          2887:        * sun3.h, sparc.h (LINK_SPEC): Change nostdlib to !nostdlib.
        !          2888: 
        !          2889: Mon Apr 13 07:17:36 1992  John F Carr  (jfc at Achates.mit.edu)
        !          2890: 
        !          2891:        * rs6000.md (extzv): Generate andi[ul] when practical.
        !          2892: 
        !          2893: Mon Apr 13 07:17:36 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          2894: 
        !          2895:        * cse.c (rtx_cost, case SUBREG): If modes can't be tied, make
        !          2896:        expensive.
        !          2897:        (cse_insn): Make extra entries when DEST is a multi-word SUBREG
        !          2898:        as long as it is the same number of words as its inner REG.
        !          2899: 
        !          2900:        * emit-rtl.c (gen_lowpart_common): Handle casting integer to
        !          2901:        float and vice versa.
        !          2902: 
        !          2903:        * emit-rtl.c (gen_lowpart_common): Rework code to truncate a
        !          2904:        constant so we don't convert negative values into positive values;
        !          2905:        use same code as in simplify_binary_operation in cse.
        !          2906: 
        !          2907: Mon Apr 13 07:16:56 1992  Richard M. Stallman  (rms at mole.gnu.ai.mit.edu)
        !          2908: 
        !          2909:        * cccp.c (handle_directive): When find quote during copying,
        !          2910:        give bp as limit arg in skip_quoted_string.
        !          2911:        When find \ while copying, copy next char without special handling.
        !          2912: 
        !          2913: Mon Apr 13 06:57:18 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          2914: 
        !          2915:        * m88kv3.h (CTOR_LIST_BEGIN): Avoid complex #if.
        !          2916: 
        !          2917:        * tree.h (saved_insns): Make this a union holding an rtx or an int.
        !          2918:        (DECL_FIELD_SIZE): New macro for overloaded uses of DECL_FRAME_SIZE.
        !          2919:        * c-decl.c (finish_struct): Use DECL_FIELD_SIZE for bitfields.
        !          2920:        * cp-class.c (finish_struct): Ditto.
        !          2921:        * objc-actions.c (objc_copy_list, encode_field_decl): Ditto.
        !          2922:        * stor-layout.c (layout_decl): Ditto.
        !          2923: 
        !          2924: Sun Apr 12 17:46:30 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          2925: 
        !          2926:        * expr.c (expand_builtin, case SQRT): Don't defer popping args on
        !          2927:        function calls, as the call might be deleted.
        !          2928: 
        !          2929:        * i386.c (print_operand): Delete references to unused codes.
        !          2930:        Abort if an unrecognized code is seen.
        !          2931: 
        !          2932:        * i386.md (bit opcode recognizers): Accept starting bit numbers
        !          2933:        that are constants but not CONST_INT.
        !          2934:        (QI/HI register bit test): Delete.
        !          2935:        (SImode bit test): Don't accept CONST_INT starting bit number.
        !          2936: 
        !          2937: Sun Apr 12 17:05:25 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          2938: 
        !          2939:        * rs6000.h (ADDITIONAL_REGISTER_NAMES): Add "cc" as alias for cr0.
        !          2940: 
        !          2941:        * cse.c (equiv_constant): See if a MEM is foldable or has a 
        !          2942:        constant equivalent.
        !          2943: 
        !          2944:        * expr.c (store_constructor): If building a static constructor
        !          2945:        into a register, start out by zeroing the register so we can
        !          2946:        constant-fold the constructor to a single constant.
        !          2947:        (expand_expr, case CONSTRUCTOR): Don't write constant objects
        !          2948:        into memory if the target is a register.
        !          2949:        (expand_expr, case *_REF): Simplify getting field or array
        !          2950:        entry from a CONSTRUCTOR.
        !          2951:        Don't use value of const array unless -O.
        !          2952: 
        !          2953: Sun Apr 12 14:15:33 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)
        !          2954: 
        !          2955:        * Makefile.in (compare, compare3): New targets.
        !          2956:        (mostlyclean): Delete temporary files made by those targets.
        !          2957: 
        !          2958:        * stmt.c (expand_asm_operands): Ignore `cc' as clobbered reg if name
        !          2959:        not known.
        !          2960:        * varasm.c (decode_reg_name): Ret -3 if `cc' not recognized.
        !          2961:        (make_decl_rtl): Understand -3 as value.
        !          2962: 
        !          2963:        * configure (i386-sequent-bsd*): Use collect2.
        !          2964: 
        !          2965: Sun Apr 12 13:28:00 1992  Niklas Hallqvist  ([email protected])
        !          2966: 
        !          2967:        * configure: Correctly interpret use_collect2.
        !          2968: 
        !          2969: Sun Apr 12 10:34:58 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          2970: 
        !          2971:        * c-typeck.c (digest_init): Use INIT to pass to convert_for_assignment
        !          2972:        for a raw constructor.
        !          2973: 
        !          2974:        * fold-const.c (fold, case COND_EXPR): Get the type right when
        !          2975:        the test is folded away.
        !          2976: 
        !          2977:        * loop.c (strength_reduce): Correct off-by-one error in INSN_LUID
        !          2978:        safety check.
        !          2979: 
        !          2980:        * stor-layout (layout_record, layout_union): When limiting the
        !          2981:        effect of PCC_BITFIELD_TYPE_MATTERS to bitfields, use
        !          2982:        DECL_BIT_FIELD_TYPE to determine if it was a bitfield.
        !          2983: 
        !          2984: Sat Apr 11 19:54:00 1992  Per Bothner  ([email protected])
        !          2985: 
        !          2986:        * config.sub:  Don't "standardize" an os of newsos* to bsd
        !          2987:        (it breaks gdb/readline/configure.in, which checks for newsos*).
        !          2988: 
        !          2989: Sat Apr 11 16:32:21 1992  Torbjorn Granlund  ([email protected])
        !          2990: 
        !          2991:        * Makefile.in: Remove spaces after reg-stack.o deps.
        !          2992: 
        !          2993: Sat Apr 11 16:32:15 1992  Michael Meissner  ([email protected])
        !          2994: 
        !          2995:        * c-decl.c (init_decl_processing): Make -fno-builtin supress all
        !          2996:        builtin functions in the user's name space like memcpy, strlen,
        !          2997:        etc.
        !          2998: 
        !          2999: Sat Apr 11 14:00:53 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          3000: 
        !          3001:        * rs6000.h (LEGITIMIZE_ADDRESS): Add missing force_reg call.
        !          3002:        Jump to WIN when we do something.
        !          3003: 
        !          3004:        * rs6000.c (non_{short,add,logical,and}_cint_operand): New functions.
        !          3005:        * rs6000.h (PREDICATE_CODES): Add these predicates.
        !          3006:        * rs6000.md (addsi3, andsi3, iorsi3, xorsi3, cmpsi3): Remove
        !          3007:        define_expands; instead, add define_split for long constants.
        !          3008: 
        !          3009:        * combine.c (try_combine): Try to split the pattern using
        !          3010:        split_insns before trying find_split_point.
        !          3011:        (find_split_point, case MEM): Try to split an invalid address that
        !          3012:        is a PLUS with a CONST_INT.
        !          3013: 
        !          3014:        * combine.c (try_combine): Correctly check if an auto-inc
        !          3015:        side-effect has been duplicated.
        !          3016: 
        !          3017:        * expr.c (expand_expr, case PARM_DECL): Return zero of proper mode
        !          3018:        if no DECL_RTL.
        !          3019:        
        !          3020:        * tree.c (save_expr): Must do something with read-only tree that 
        !          3021:        has side-effects.
        !          3022:        (stabilize_reference_1): Don't ignore read-only trees.
        !          3023: 
        !          3024:        * reload.c (find_replacement): New function.
        !          3025:        * reload.h (find_replacement): Declare it.
        !          3026:        * reload1.c (gen_input_reload): Use it to ensure substitutions
        !          3027:        get done if we need to recreate a PLUS.
        !          3028: 
        !          3029: Sat Apr 11 14:00:02 1992  John F Carr  (jfc at Achates.mit.edu)
        !          3030: 
        !          3031:        * cse.c (cse_end_of_basic_block): Don't stop scanning insns if a
        !          3032:        jump is found that can't be followed.
        !          3033: 
        !          3034:        * genextract.c: Make insn_extract copy the address of
        !          3035:        recog_operand and recog_operand_loc into register variables.
        !          3036: 
        !          3037: Sat Apr 11 13:59:17 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)
        !          3038: 
        !          3039:        * c-parse.y (stmt): Parse entire parens of `for'
        !          3040:        before actually starting the loop.
        !          3041: 
        !          3042: Sat Apr 11 10:35:06 1992  Jeffrey A. Law  ([email protected])
        !          3043: 
        !          3044:        * caller-save.c (restore_referenced_regs): Do not call XEXP on
        !          3045:        reg_equiv_address since reg_equiv_address is already an address.
        !          3046: 
        !          3047:        * expr.c (expand_builtin, case SQRT): Note the dangers involved in
        !          3048:        changing the argument test condition.
        !          3049: 
        !          3050:        * m68k.md (sqrtdf2): New pattern to take advantage of the 68881
        !          3051:        sqrt function.
        !          3052: 
        !          3053: Fri Apr 10 18:37:08 1992  Torbjorn Granlund  ([email protected])
        !          3054: 
        !          3055:        * hp800.c (output_function_epilogue): Output code to restore gr2 in
        !          3056:        non-frame-pointer case correctly.
        !          3057: 
        !          3058: Fri Apr 10 15:24:57 1992  Michael Meissner  ([email protected])
        !          3059: 
        !          3060:        * decrose.h (TARGET_MEM_FUNCTIONS): Define, memcpy/memset are
        !          3061:        provided.
        !          3062: 
        !          3063:        * i386rose.h (TARGET_MEM_FUNCTIONS): Define, memcpy/memset are
        !          3064:        provided.
        !          3065: 
        !          3066:        * encrose.h (TARGET_MEM_FUNCTION): Define, memcpy/memset are
        !          3067:        provided.
        !          3068: 
        !          3069:        * mips-tfile.c (copy_object): Omit the test for zero flags, since
        !          3070:        MIPS vendors are now putting bits in there.
        !          3071: 
        !          3072:        * mips-svr4.h (HAVE_ATEXIT): Define, atexit is provided.
        !          3073:        (TARGET_MEM_FUNCTIONS): Define, memcpy/memset are provided.
        !          3074: 
        !          3075:        * mips-sysv.h (TARGET_MEM_FUNCTIONS): Define, memcpy/memset are
        !          3076:        provided.
        !          3077: 
        !          3078:        * mips-news5.h (TARGET_MEM_FUNCTIONS): Define, memcpy/memset are
        !          3079:        provided.
        !          3080:        (getpagesize): Define a getpagesize that uses sysconf, just like the
        !          3081:        MIPS V.4 port.
        !          3082: 
        !          3083:        * mips.c (output_block_move): Don't emit ulw/usw if GAS is the
        !          3084:        assembler, use the lwl/lwr/swl/swr building blocks instead, since
        !          3085:        GAS doesn't yet support the ulw/usw macro instructions.
        !          3086: 
        !          3087:        * configure (mips-sgi-irix4): Use config/iris4.h instead of
        !          3088:        config/iris.h.
        !          3089: 
        !          3090:        * iris4.h (new file): Just like iris.h, atexit is provided (unlike
        !          3091:        IRIX revision 3).
        !          3092: 
        !          3093:        * iris.h (TARGET_MEM_FUNCTIONS): Define, memcpy/memset are provided.
        !          3094: 
        !          3095: Fri Apr 10 11:59:02 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          3096: 
        !          3097:        * i386.md (cmpstr patterns): Correctly handle zero length
        !          3098:        compares.  Rewrite to avoid needing scratch register.
        !          3099: 
        !          3100: Thu Apr  9 14:05:04 1992  Michael Collison  (collison at osf.org)
        !          3101: 
        !          3102:        * i386rose.h (ASM_OUTPUT_FLOAT, ASM_OUTPUT_DOUBLE): Fix these to
        !          3103:        avoid printing NaNs, and infinity.
        !          3104: 
        !          3105: Thu Apr  9 11:34:31 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          3106: 
        !          3107:        * m88kluna.h (DEFAULT_GDB_EXTENSIONS): Define as 0.
        !          3108: 
        !          3109: Wed Apr  8 20:21:59 1992  Michael Meissner  ([email protected])
        !          3110: 
        !          3111:        * halfpic.c (all functions): Add a hash table for the lookup instead
        !          3112:        of linear search.  Don't use bits in the IDENTIFIER node, store the
        !          3113:        information in the hash table.  Always rebuild the SYMBOL_REF
        !          3114:        returned by half_pic_ptr, instead of storing it away, since the RTL
        !          3115:        gets reused at the end of the function.
        !          3116:        (half_pic_declare): New function, called when a label is laid down
        !          3117:        to say that it is no longer half-pic.
        !          3118: 
        !          3119:        * halfpic.h (half_pic_declare, HALF_PIC_DECLARE): Add function
        !          3120:        defintion, and accessor macro.
        !          3121: 
        !          3122:        * mips.h (HALF_PIC_DECLARE): Add dummy macro if not OSF/rose.
        !          3123:        (ASM_DECLARE_OBJECT_NAME): Invoke HALF_PIC_DECLARE on name.
        !          3124:        (ASM_DECLARE_FUNCTION_NAME): Ditto.
        !          3125:        (*_SECTION_ASM_OP): Put the leading tab back in.
        !          3126: 
        !          3127:        * mips.md (dslot attribute): 'pic' type requires a delay slot, since
        !          3128:        it is really a load.
        !          3129:        (movsi): Make movsi a define_expand, and if it's moving the address
        !          3130:        of a half-pic item into a register, convert it into a load.
        !          3131:        (movsi_internal): The old movsi define_insn renamed.
        !          3132:        (movstrsi_internal): Add '=' constraint on all stores and clobbers.
        !          3133: 
        !          3134:        * decrose.h (LINK_SPEC): If not -noshrlib or -pic-none, pass
        !          3135:        -warn_nopic.  Allow user to pass -noshrlib directly.
        !          3136: 
        !          3137: Wed Apr  8 00:11:56 1992  Jim Wilson  ([email protected])
        !          3138: 
        !          3139:        * sparc.h (MOVE_MAX): Set to 8 instead of 4.
        !          3140: 
        !          3141:        * sched.c (sched_analyze_2): Don't abort if find note before a CC0
        !          3142:        using insn.
        !          3143: 
        !          3144:        * sparc.h (ADDITIONAL_REGISTERS_NAMES): Add.  Define fake reg name
        !          3145:        ccr, for use in asm clobbers.
        !          3146: 
        !          3147:        * sparc.h (TARGET_FORCE_ALIGN): Add comment explaining that it
        !          3148:        is for experimental purposes only.
        !          3149:        (FIRST_PARM_OFFSET): Add 4 when TARGET_FORCE_ALIGN to ensure that
        !          3150:        stack is double-word aligned.
        !          3151:        (FIRST_PARM_CALLER_OFFSET): Delete obsolete macro.
        !          3152: 
        !          3153:        From Tom Wood:
        !          3154:        * unroll.c (final_giv_value): Put the subtracts in the right place.
        !          3155: 
        !          3156:        * sparc.c (compute_last_arg_offset): Delete, no longer needed.
        !          3157:        (FRAME_POINTER_REQUIRED): Do not depend on frame size.
        !          3158: 
        !          3159: Tue Apr  7 22:36:33 1992  Michael Meissner  ([email protected])
        !          3160: 
        !          3161:        * halfpic.c (whole file): Flesh out initial half-pic implementation
        !          3162:        for the OSF/1 reference ports.  This is still a work in progress.
        !          3163: 
        !          3164:        * halfpic.h (toplevel): Add declarations for half_pic_finish and
        !          3165:        half_pic_ptr.  Add macros HALF_PIC_FINISH, HALF_PIC_PTR, and
        !          3166:        HALF_PIC_PREFIX.
        !          3167: 
        !          3168:        * mips.h (call_memory_operand): Delete call_memory_operand
        !          3169:        function declaration.
        !          3170:        (PREDICATE_CODES): Ditto.
        !          3171:        (CONSTANT_ADDRESS_P): Correctly reject half-pic addresses.
        !          3172: 
        !          3173:        * mips.c (call_memory_operand): Delete function.
        !          3174: 
        !          3175:        * mips.md (call* patterns): Use memory_operand instead of
        !          3176:        call_memory_operand for predicates.  Use the test not register and
        !          3177:        not CONSTANT_ADDRESS_P instead of call_memory_operand in the
        !          3178:        define_expand body to test whether the function address needs to be
        !          3179:        forced to a register.
        !          3180: 
        !          3181:        * decrose.h (HALF_PIC_DEBUG): Define as true if -mdebugb, to debug
        !          3182:        the half-pic code, just like debugging normal addressing.
        !          3183:        (CPP_SPEC): Use the __<name>__ form of the language macros instead
        !          3184:        of __<name>.
        !          3185:        (LINK_SPEC): If -pic-lib and not -noshrlib, pass -warn_nopic.
        !          3186:        (LIB_SPEC): Don't pass -L/usr/ccs/lib.
        !          3187: 
        !          3188:        * x-decrose (CCLIBFLAGS): Pass -pic-extern when building libgcc1.a.
        !          3189:        (LIBGCC2_CFLAGS): Pass -pic-extern when building libgcc2.a.
        !          3190: 
        !          3191: Tue Apr  7 19:00:56 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          3192: 
        !          3193:        * xm-m88k.h (NO_SYS_SIGLIST): Not provided by the 88open standards.
        !          3194: 
        !          3195:        * m88k.c (output_ascii): Generalize to support ident
        !          3196:        * m88k.h (ASM_OUTPUT_IDENT, ASM_OUTPUT_ASCII): Use output_ascii.
        !          3197: 
        !          3198:        * m88k.c, m88k.md, m88k.h: Integrate all changes to support the m88110.
        !          3199: 
        !          3200: Mon Apr  6 22:51:02 1992  John Wroclawski  ([email protected])
        !          3201: 
        !          3202:        * mips-tfile.c (read_seek): Fix argument order in calls to
        !          3203:        fatal.
        !          3204: 
        !          3205: Mon Apr  6 21:17:38 1992  Mike Stump  ([email protected])
        !          3206: 
        !          3207:        * merged in Cygnus sources.
        !          3208: 
        !          3209:        Mon Apr  6 15:26:09 1992  Mike Stump  ([email protected])
        !          3210: 
        !          3211:        * cp-spew.c (hack_more_ids): Reimplement.  Change from Niklas
        !          3212:        Hallqvist.
        !          3213: 
        !          3214:        Thu Apr  2 02:36:36 1992  Mike Stump  ([email protected])
        !          3215: 
        !          3216:        * cp-*:  Simplify DECL_NAME (TYPE_NAME into TYPE_IDENTIFIER.
        !          3217: 
        !          3218:        * cp-call.c (build_method_call):  Fix an error message.
        !          3219: 
        !          3220:        * cp-parse.y (LC):  Renamed to left_curly.
        !          3221:        (TYPENAME_SCOPE):  Renamed to typename_scope.
        !          3222: 
        !          3223: Mon Apr  6 14:04:49 1992  Jim Wilson  ([email protected])
        !          3224: 
        !          3225:        * sparc.h (TARGET_HOPE_ALIGN): Fix typo, `-fast' -> `-dalign'.
        !          3226: 
        !          3227:        * expr.c (expand_expr, INDIRECT_REF case): Set MEM_IN_STRUCT_P if
        !          3228:        this is an indirect of the address of an array, struct, or union.
        !          3229: 
        !          3230:        * jump.c: Delete declaration of squeeze_notes.
        !          3231:        (jump_optimize): Use new return value from squeeze_notes.
        !          3232:        (squeeze_notes): Handle the case where START may be a note that
        !          3233:        must be moved outside the range.  Now returns the new start value.
        !          3234:        * loop.c (find_and_verify_loops): Use squeeze_notes return value.
        !          3235:        * stmt.c (expand_end_case): Call squeeze_notes before reorder_insns.
        !          3236:        * rtl.h: Declare squeeze_notes.
        !          3237: 
        !          3238:        * rs6000.h (PTRDIFF_TYPE): Define to int.
        !          3239: 
        !          3240:        Mostly from [email protected]:
        !          3241:        * sparc.c (eligible_for_epilogue_delay): Clarify comment.  Delete
        !          3242:        unreachable test of leaf_function.
        !          3243:        (singlemove_string): Correct test for when can use sethi alone.
        !          3244:        (output_function_prologue): Declare leaf_function.  More
        !          3245:        efficiently frame sizes greater than 4095. Correctly handle leaf
        !          3246:        functions with frame greater than 4095.
        !          3247:        (output_function_epilogue): Likewise.
        !          3248:        (output_return): Likewise.
        !          3249: 
        !          3250: Mon Apr  6 10:11:08 1992  Tim Moore  ([email protected])
        !          3251: 
        !          3252:        * config.sub : Add hp700 cpu type.
        !          3253:        * configure : Make hp700-bsd and hp700-hpux cases, with use of gas
        !          3254:        an option.
        !          3255:        * hp700hpuxg.h, hp800hpuxg.h : New files for using gas under hpux.
        !          3256:        * hp800.h (REGISTER_NAMES): Change to use %r style register names;
        !          3257:        required to name PA-RISC 1.1 fp registers.
        !          3258:        * x-hp800hpux : Don't invoke the assembler to compile alloca.c.
        !          3259:        * README-PA-RISC: New file.
        !          3260: 
        !          3261: Mon Apr  6 08:00:06 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          3262: 
        !          3263:        * reorg.c (relax_delay_slots): Don't get confused when a label
        !          3264:        becomes zero (meaning end of function).
        !          3265: 
        !          3266: Sun Apr  5 13:45:37 1992  Ron Guilmette (rfg at ncd.com)
        !          3267: 
        !          3268:        * i860.md (floatsidf3):  Fixed to expand to a correct insn sequence.
        !          3269: 
        !          3270: Sun Apr  5 12:33:02 1992  John F Carr  (jfc at Achates.mit.edu)
        !          3271: 
        !          3272:        * rs6000.h (EXTRA_CC_MODES, EXTRA_CC_NAMES): Add CCEQmode.
        !          3273:        (SELECT_CC_MODE): Select it for equality comparison of comparison.
        !          3274:        * rs6000.c (scc_comparison_operator): Reject improper use of
        !          3275:        CCEQmode.
        !          3276:        (ccr_bit): Handle CCEQmode, where bit is always third in field.
        !          3277:        (print_operand, case 'E'): New case.
        !          3278:        * rs6000.md: New pattern to compare two comparisons with
        !          3279:        creqv/crxor.
        !          3280:        Add peephole for two consecutive scc insns.
        !          3281: 
        !          3282:        * combine.c (subst, case FFS): (ffs (*_extend X)) -> (ffs X)
        !          3283:        (make_compound_operation): Handle (and (rotate X C) M).
        !          3284: 
        !          3285:        * flags.h (flag_cse_skip_blocks): New variable.
        !          3286:        * toplev.c (flag_cse_skip_blocks): Define it here.
        !          3287:        (f_options): Add it to table.
        !          3288:        (main): -O2 turns it on.
        !          3289:        * cse.c (invalidated_skipped_{set,block}): New functions.
        !          3290:        (enum taken): New value, AROUND.
        !          3291:        (cse_end_of_basic_block): New argument SKIP_BLOCKS.  If it is
        !          3292:        nonzero, follow a branch around a block of code which contains
        !          3293:        no labels and set status = AROUND for the jump.
        !          3294:        (cse_main): Pass FLAG_CSE_SKIP_BLOCKS argument to
        !          3295:        cse_end_of_basic_block.
        !          3296:        (cse_basic_block): If jump status is AROUND, call scan_skipped_block
        !          3297:        before following jump.
        !          3298: 
        !          3299: Sun Apr  5 04:16:46 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          3300: 
        !          3301:        * optabs.c (emit_cmp_insn): Add missing parameter type declaration.
        !          3302: 
        !          3303:        * expr.c (expand_builtin, case SQRT): Fix typo emitting insns.
        !          3304:        Reformat to look like the rest of gcc.  Use accessor macros to
        !          3305:        access fields of an RTX.  Make comments match code.
        !          3306: 
        !          3307:        * i386.md (cmpstr patterns): Handle zero length compares.
        !          3308: 
        !          3309: Sat Apr  4 04:40:58 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          3310: 
        !          3311:        * reload.c (find_equiv_reg): Avoid passing zero to true_regnum.
        !          3312: 
        !          3313:        * expr.c (expand_expr, case COMPONENT_REF): Handle case where we
        !          3314:        are extracting a field of a constant.
        !          3315: 
        !          3316:        * a29k.h ({TEXT,READONLY_DATA,DATA}_SECTION_ASM_OP): Put tab back.
        !          3317: 
        !          3318:        * rs6000.c (output_epilog): Reduce number of lines generated to
        !          3319:        write traceback table.
        !          3320: 
        !          3321:        * combine.c (move_deaths): A destination is used in this insn
        !          3322:        unless is it completely overwritten.
        !          3323: 
        !          3324: Sat Apr  4 04:39:16 1992  John Carr (jfc at ATHENA.MIT.EDU)
        !          3325: 
        !          3326:        * expmed.c (store_bit_field, extract_bit_field): Remove redundant
        !          3327:        tests for MEM.
        !          3328: 
        !          3329:        * c-common.c (binary_op_error): Handle FLOOR_DIV_EXPR, FLOOR_MOD_EXPR,
        !          3330:        *ROTATE_EXPR.
        !          3331:        * c-typeck.c (build_binary_op): Handle FLOOR_MOD_EXPR.
        !          3332: 
        !          3333: Sat Apr  4 00:29:40 1992  Richard Stallman  ([email protected])
        !          3334: 
        !          3335:        * c-decl.c (c_decode_option): `-' was missing in -Wno-redundant-decs.
        !          3336: 
        !          3337:        * Makefile.in (USE_COLLECT2, MAYBE_USE_COLLECT2): New variables.
        !          3338:        (GCC_PARTS, native, install-common): Use USE_COLLECT2.
        !          3339:        (toplev.o): Use MAYBE_USE_COLLECT2.
        !          3340:        * configure: Let particular cases set use_collect2
        !          3341:        and have that control use of collect2 through editing Makefile.
        !          3342:        Handle --with-gnu-as and --with-gnu-ld options.  Ignore --with-*.
        !          3343:        --with-gnu-ld turns off use_collect2.
        !          3344:        * i386rose.h (CC1PLUS_SPEC): Deleted.
        !          3345: 
        !          3346:        * gcc.c (do_spec_1): In case 'D', strip final / from prefixes.
        !          3347: 
        !          3348:        * c-decl.c (push_c_function_context): Add pedantic warning.
        !          3349: 
        !          3350:        * collect2.c (main): Figure STANDARD_EXEC_PREFIX into clen.
        !          3351: 
        !          3352:        * c-typeck.c (get_spelling): Move alloca outside fn call.
        !          3353: 
        !          3354: Fri Apr  3 16:36:54 1992  Richard Stallman  ([email protected])
        !          3355: 
        !          3356:        * varasm.c (output_constant_def): Set MEM_IN_STRUCT_P if nec.
        !          3357: 
        !          3358: Fri Apr  3 05:32:39 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          3359: 
        !          3360:        * m88k.md (call_block_move{,_loop}): Don't write USE for regs
        !          3361:        we don't set; remove unneeded CLOBBERs for call-used registers.
        !          3362: 
        !          3363:        * caller-save.c (insert_save_restore): Abort rather than writing
        !          3364:        out an insn having a null source or destination.
        !          3365: 
        !          3366:        * explow.c (allocate_dynamic_stack_space): Don't reference
        !          3367:        STACK_BOUNDARY if it isn't defined.
        !          3368: 
        !          3369:        * explow.c (allocate_dynamic_stack_space): Don't use TARGET if it
        !          3370:        isn't a pseudo reg.
        !          3371: 
        !          3372: Fri Apr  3 01:50:57 1992  Richard Stallman  ([email protected])
        !          3373: 
        !          3374:        * fixinc.svr4: Don't reconvert __i386 if have _ after.
        !          3375: 
        !          3376:        * c-decl.c (grokdeclarator): Use size_binop to get array hbound - 1.
        !          3377: 
        !          3378:        * enquire.c: Include sys/types.h.
        !          3379: 
        !          3380:        * c-typeck.c (check_format): Don't use type name for integer types
        !          3381:        or pointers to them.
        !          3382: 
        !          3383:        * explow.c (allocate_dynamic_stack_space): New arg KNOWN_ALIGN.
        !          3384:        All callers changed.
        !          3385: 
        !          3386: Thu Apr  2 15:24:38 1992  Richard Stallman  ([email protected])
        !          3387: 
        !          3388:        * dbxout.c (dbxout_type): Output just xref for var-size struct/union.
        !          3389: 
        !          3390:        * reload.c (find_equiv_reg): In previous change, verify valtry != 0.
        !          3391: 
        !          3392: Thu Apr  2 08:34:38 1992  Michael Meissner  ([email protected])
        !          3393: 
        !          3394:        * iris.h (SIZE_TYPE): Make type unsigned int, not unsigned long.
        !          3395:        (PTRDIFF_TYPE): Define to be 'int', not 'long int'.
        !          3396:        (WCHAR_TYPE): Define to be 'unsigned char', not 'int'.
        !          3397:        (WCHAR_TYPE_SIZE): Define to be 8, not 32.
        !          3398: 
        !          3399: Thu Apr  2 06:01:07 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          3400: 
        !          3401:        * fold-const.c (fold, case COND_EXPR): Add missing test for zero.
        !          3402: 
        !          3403:        * expr.c (expand_expr, case ARRAY_REF): Handle case of constant
        !          3404:        array whose initializer is a string.
        !          3405: 
        !          3406:        * optabs.c (emit_libcall_block): Don't move up insns that set
        !          3407:        pseudos whose old values are used in previous insns.
        !          3408: 
        !          3409:        * genattrtab.c (attr_rtx): Add some casts to int from enum rtx_code.
        !          3410: 
        !          3411: Thu Apr  2 04:20:30 1992  Richard Stallman  ([email protected])
        !          3412: 
        !          3413:        * xm-mipsnbsd.h: New file.
        !          3414:        * configure (mips-sony-bsd*): Use that.
        !          3415: 
        !          3416:        * stmt.c (expand_end_case): Move the convert_to_mode after emit_queue.
        !          3417: 
        !          3418: Thu Apr  2 00:49:18 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          3419: 
        !          3420:        * stmt.c (expand_end_case): Fix typo.
        !          3421: 
        !          3422: Wed Apr  1 19:01:00 1992  Richard Stallman  ([email protected])
        !          3423: 
        !          3424:        * fold-const.c (size_int): Always switch to permanent_obstack
        !          3425:        to make a node that will be saved
        !          3426: 
        !          3427: Wed Apr  1 15:36:19 1992  Michael Meissner  ([email protected])
        !          3428: 
        !          3429:        * xm-irix4.h (alloca.h): Don't include <alloca.h> if not using the
        !          3430:        GNU compiler, since the Silicon Graphics compiler's alloca complains
        !          3431:        if the result of alloca is stored in something that is not a simple
        !          3432:        variable.  Just use the C version of alloca.c.
        !          3433: 
        !          3434: Wed Apr  1 14:42:24 1992  Torbjorn Granlund  ([email protected])
        !          3435: 
        !          3436:        * pyr.md (HImode compare recognizers): Don't match if subsequent
        !          3437:        branch has unsigned predicate.
        !          3438: 
        !          3439: Wed Apr  1 14:20:13 1992  Jim Wilson  ([email protected])
        !          3440: 
        !          3441:        * sparc.c (output_function_epilogue): Drop unused true_epilogue
        !          3442:        parameter.  Delete obsolete tail-call support code, which worked
        !          3443:        by passing -1 for leaf_function.
        !          3444:        (tail_call_valid_p): Delete obsolete function.
        !          3445:        (output_tail_call): Likewise.
        !          3446:        * sparc.h (TARGET_TAIL_CALL): Delete obsolete option.
        !          3447:        (FUNCTION_EPILOGUE): Fix call to output_function_epilogue.
        !          3448:        * sparc.md (tail_call): Delete obsolete pattern.
        !          3449: 
        !          3450:        * rs6000.c (output_epilogue): Output a traceback table.
        !          3451: 
        !          3452: Wed Apr  1 06:42:54 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          3453: 
        !          3454:        * m88k.h: Override ASM_OPs added to svr4.h.
        !          3455: 
        !          3456: Wed Apr  1 03:12:44 1992  Richard Stallman  ([email protected])
        !          3457: 
        !          3458:        * emit-rtl.c (operand_subword): Swap words from const_double if nec
        !          3459: 
        !          3460:        * ns32k.h (GO_IF_INDEXING): New arg MODE; caller changed.
        !          3461:        Pass to INDEX_TERM_P.
        !          3462: 
        !          3463: Tue Mar 31 18:10:10 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          3464: 
        !          3465:        * genattrtab.c (check_attr_value): Fix some backwards tests.
        !          3466: 
        !          3467:        * expr.c (move_by_pieces{,_ninsns}): Only look at MODE_INT modes.
        !          3468: 
        !          3469:        * fold-const.c (fold, case COND_EXPR): Fix typo in last change.
        !          3470: 
        !          3471:        * stor-layout.c (layout_record): Add missing call to size_int.
        !          3472: 
        !          3473:        * expr.c (do_store_flag): Handle case where EXP is a TRUTH_NOT_EXPR.
        !          3474: 
        !          3475: Tue Mar 31 17:18:20 1992  Jeffrey A. Law  ([email protected])
        !          3476: 
        !          3477:        * c-decl.c (init_decl_processing): Enable `sqrt'.
        !          3478:        * expr.c (expand_builtin, case SQRT): By default check that the
        !          3479:        argument to sqrt is in sqrt's domain.  If the argument is not in the
        !          3480:        domain, then call the library function.  Skip argument checking if
        !          3481:        -ffast-math is in use.
        !          3482: 
        !          3483:        * flags.h (flag_fast_math): Declare new variable.
        !          3484:        * toplev.c (f_options): Add flag_fast_math to table.
        !          3485: 
        !          3486: Tue Mar 31 17:11:09 1992  Per Bothner  ([email protected])
        !          3487: 
        !          3488:        * cccp.c:  Add new flag -nostdinc++ to disable searching
        !          3489:        standard C++-specific include directories. This is useful
        !          3490:        for building libg++.
        !          3491:        * gcc.c:  Pass -nostdinc* to cpp, not just -nostdinc.
        !          3492:        * cpp.texi:  Document -nostdinc++.
        !          3493: 
        !          3494: Tue Mar 31 15:32:34 1992  Richard Stallman  ([email protected])
        !          3495: 
        !          3496:        * gcc.c (link_command_spec): Use %l before %X.
        !          3497: 
        !          3498:        * svr4.h (MULTIBYTE_CHARS): Turned off.
        !          3499: 
        !          3500:        * sun3.h, sparc.h (LINK_SPEC): Inhibit -e if -nostdlib.
        !          3501: 
        !          3502:        * collect2.c (my_strerror): Renamed from strerror.
        !          3503: 
        !          3504:        * reload.c (find_equiv_reg): Find constants in REG_EQUIV notes.
        !          3505: 
        !          3506:        * m68k.h (PRINT_OPERAND_PRINT_FLOAT): Fix typo in #ifdef.
        !          3507: 
        !          3508:        * Makefile.in (install-dir): Create include subdir.
        !          3509: 
        !          3510: Tue Mar 31 18:03:21 1992  Thorsten Ohl  ([email protected])
        !          3511: 
        !          3512:        * x-apollo68 (CFLAGS, LIBGCC2_CFLAGS): Defined.
        !          3513:        * t-apollo68: new file, use collect2.
        !          3514:        * configure: use `t-apollo68'.
        !          3515: 
        !          3516:        * apollo68.h (ASM_SPEC): Delete -C.
        !          3517:        (STRUCT_VALUE_INCOMING): Now 0.
        !          3518:        (HAVE_ATEXIT): Defined.
        !          3519:        (PROMOTE_PROTOTYPES): Delete #undef.
        !          3520:        (USER_LABEL_PREFIX): Undef.
        !          3521:        (LOCAL_LABEL_PREFIX, REGISTER_PREFIX, REGISTER_PREFIX_MD): Override.
        !          3522:        (ASM_RETURN_CASE_JUMP): Defined.
        !          3523:        (REGISTER_NAMES): Override.
        !          3524: 
        !          3525: Tue Mar 31 14:59:53 1992  Tim Moore  ([email protected])
        !          3526: 
        !          3527:        * hp800.md (movsi+4, call_value+1): Add x,y constraints for Snake
        !          3528:        fp registers.
        !          3529:        * hp800.h (INITIAL_FRAME_POINTER_OFFSET): Fix for Snake stack
        !          3530:        alignment. 
        !          3531:        (REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P): Fix for Snake fp
        !          3532:        registers.
        !          3533:        * hp800.c (output_function_prologue): Align stack for Snakes.
        !          3534:        (output_arg_descriptor): Fix Snake typos.
        !          3535:        
        !          3536:        * hp700.h, hp700hpux.h : New files
        !          3537:        (TARGET_DEFAULT): Emit Snake code by default.
        !          3538:        * hp700hpux.h (HP_FP_ARG_DESCRIPTOR_REVERSED): Define to work
        !          3539:        around assembler syntax difference between 700 and 800 series HPUX.
        !          3540:        * hp800.h (ASM_DOUBLE_ARG_DESCRIPTORS): Conditionalize on the
        !          3541:        above symbol.
        !          3542: 
        !          3543: Tue Mar 31 09:58:52 1992  Michael Meissner  ([email protected])
        !          3544: 
        !          3545:        * mips-sysv.h (getpagesize): When compiling the trampoline code,
        !          3546:        define a macro getpagesize which uses the POSIX sysconf function.
        !          3547: 
        !          3548:        * mips-svr4.h (getpagesize): When compiling the trampoline code,
        !          3549:        define a macro getpagesize which uses the POSIX sysconf function.
        !          3550: 
        !          3551: Mon Mar 30 19:25:48 1992  Jim Wilson  ([email protected])
        !          3552: 
        !          3553:        * loop.c (strength_reduce): In recent maybe_multiple code, only
        !          3554:        apply INSN_LUID to insn when safe.
        !          3555: 
        !          3556: Mon Mar 30 17:24:33 1992  Michael Meissner  ([email protected])
        !          3557: 
        !          3558:        * mips.c (output_block_move): Fix typos that would generate
        !          3559:        incorrect code if either the source or destination is a global or
        !          3560:        static memory address.  Increment appropriate -mstats counters.
        !          3561: 
        !          3562:        * x-iris (INSTALL): Use cp to install stuff, not install -c.
        !          3563: 
        !          3564: Mon Mar 30 16:39:28 1992  Richard Stallman  ([email protected])
        !          3565: 
        !          3566:        * m68k.md: Use `\;', not `;', to separate insns.
        !          3567: 
        !          3568:        * toplev.c (main): Add cast when setting debug_info_level.
        !          3569: 
        !          3570:        * m68k.h (GLOBAL_ASM_OP): New macro.
        !          3571:        (ASM_GLOBALIZE_LABEL): Use that.
        !          3572:        * hp320.h, m68ksgs.h, mot3300.h (GLOBAL_ASM_OP): Override this.
        !          3573:        (ASM_GLOBALIZE_LABEL): Not this.
        !          3574: 
        !          3575:        * libgcc2.c (__builtin_saveregs) [sparc]: Define both assembler labels
        !          3576:        __builtin_saveregs and ___builtin_saveregs, to handle all systems.
        !          3577: 
        !          3578:        * m68k.h (TRANSFER_FROM_TRAMPOLINE): Add a globalize command.
        !          3579:        (TRAMPOLINE_TEMPLATE): Make the JSRs really JSRs.
        !          3580:        Always use precisely ___trampoline.
        !          3581: 
        !          3582: Mon Mar 30 07:17:50 1992  Richard Kenner  ([email protected])
        !          3583: 
        !          3584:        * reload1.c (inc_for_reload): Declare CODE consistently.
        !          3585:        (constraint_accepts_reg_p): Add missing cast.
        !          3586: 
        !          3587:        * fold-const.c (fold, case TRUTH_ANDIF_EXPR): Fix typo in last change.
        !          3588: 
        !          3589: Mon Mar 30 01:07:33 1992  Richard Stallman  ([email protected])
        !          3590: 
        !          3591:        * rtl.h: Don't continue #if lines.
        !          3592: 
        !          3593: Mon Mar 30 03:30:54 1992  Mike Stump  ([email protected])
        !          3594: 
        !          3595:        * Merge in Cygnus cp-* sources, below are the ChangeLog entries from
        !          3596:        the Cygnus ChangeLog file.  Note, I am experimenting with a slightly
        !          3597:        different format, as Tiemann would like the dates to remain intact,
        !          3598:        but Stallman does not want the dates out of order and would rather
        !          3599:        have the entries altogether anyway.
        !          3600: 
        !          3601:        Sun Mar 29 16:57:31 1992  Mike Stump  ([email protected])
        !          3602: 
        !          3603:        * cp-decl.c (grokdeclarator): Handle typedef before other
        !          3604:        specifiers, as typedef is now more complex in c++ than in c.
        !          3605: 
        !          3606:        Sun Mar 29 12:00:03 1992  Michael Tiemann  ([email protected])
        !          3607: 
        !          3608:        * cp-decl.c (start_function): Always set TREE_PUBLIC if DECL1 is
        !          3609:        part of any interface.
        !          3610: 
        !          3611:        * cp-cvt.c (convert_to_reference): Don't type to convert a type to
        !          3612:        itself.
        !          3613:        (build_type_conversion): Don't look for alternatives to default
        !          3614:        type conversion except to integral and real types.  Fixes bug
        !          3615:        exposed in 19 March change.
        !          3616: 
        !          3617:        Tue Mar 24 07:53:46 1992  Michael Tiemann  ([email protected])
        !          3618: 
        !          3619:        * cp-tree.c (lvalue_p): POST{INC,DEC}REMENT_EXPR is not an lvalue.
        !          3620:        * cp-typeck.c (build_modify_expr): Ditto.       
        !          3621: 
        !          3622:        * cp-init.c (emit_base_init): If debugging, force out a line note so
        !          3623:        we can step into ctors for base initializers.
        !          3624:        (build_virtual_init): Note that we need to do some more work to
        !          3625:        handle replicated base classes in multiple inheritance lattices.
        !          3626: 
        !          3627:        Mon Mar 23 00:33:35 1992  Michael Tiemann  ([email protected])
        !          3628: 
        !          3629:        * cp-init.c (expand_aggr_init_1): Finish Mar 15 change concerning
        !          3630:        INDIRECT_REFs that have TREE_HAS_CONSTRUCTOR set.
        !          3631: 
        !          3632:        * cp-call.c (build_overload_call_real): Ensure FINAL_CP->EVIL is set
        !          3633:        when FINAL_CP is non-NULL and we encounter an ERROR_MARK_NODE in the
        !          3634:        operands we are processing.
        !          3635: 
        !          3636:        * cp-cvt.c (convert_to_reference): Propagate ERROR_MARK_NODE from
        !          3637:        failed type conversions.
        !          3638: 
        !          3639:        Sun Mar 22 20:01:51 1992  Michael Tiemann  ([email protected])
        !          3640: 
        !          3641:        * cp-init.c (is_aggr_typedef): Don't give an error message if NAME
        !          3642:        is ERROR_MARK_NODE.
        !          3643: 
        !          3644: Sun Mar 29 09:29:10 1992    (Eric Youngdale at [email protected])
        !          3645: 
        !          3646:        * make-gcc.com: Remove patch from March 7.
        !          3647: 
        !          3648:        * make-l2.com: Use compiler that was just built, if available,
        !          3649:          otherwise use system compiler if it is version 2.
        !          3650: 
        !          3651: Sun Mar 29 19:53:33 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          3652: 
        !          3653:        * fold-const.c ({invert,swap}_tree_comparison): New functions.
        !          3654:        (comparison_equiv_p): Deleted.
        !          3655:        (operand_equal_for_comparison_p): New function.
        !          3656:        (invert_truthvalue): Use invert_tree_comparison.
        !          3657:        (fold): Use variables T1 and TEM consistently.
        !          3658:        Don't mix arg[01] and TREE_OPERAND (t, [01]); they aren't
        !          3659:        identical.
        !          3660:        (fold, comparison cases): Use new functions to adjust comparison
        !          3661:        codes; add var INVERT.
        !          3662:        Convert f >= f to f == f for FP and similar.
        !          3663:        Correctly compute FP <= and >= when one arg is a NaN.
        !          3664:        Clean up handling of constant results.
        !          3665:        (fold, case COND_EXPR): Rework considerably to catch more forms
        !          3666:        of abs, min, max, and -abs and also clean up; use new function
        !          3667:        operand_equal_for_comparison_p.
        !          3668: 
        !          3669: Sun Mar 29 00:00:35 1992  Richard Stallman  ([email protected])
        !          3670: 
        !          3671:        * cse.c (simplify_relational_operation): Arg ptr reg may be 0.
        !          3672: 
        !          3673:        * gcc.c: Always define R_OK, etc. if system headers don't.
        !          3674: 
        !          3675:        * c-parse.y (maybe_attribute): Accept `mode (m)' attribute.
        !          3676:        * c-common.c (decl_attributes): Handle that attribute.
        !          3677: 
        !          3678:        * tower.h (REGISTER_NAMES): Discard the fpa regs.
        !          3679:        * tower-as.h (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE):
        !          3680:        Don't handle fpa regs.
        !          3681:        (PUT_SDB_START_DIM, PUT_SDB_NEXT_DIM, PUT_SDB_LAST_DIM):
        !          3682:        New macros.
        !          3683:        (PUT_SDB_DIM): Deleted.
        !          3684: 
        !          3685:        * m68k.h (RTX_COSTS): Smaller multiply costs on 68040.
        !          3686: 
        !          3687:        * stmt.c (expand_end_case): Reduce amount of specific modes
        !          3688:        used in handling casesi.
        !          3689: 
        !          3690:        * collect2.c (savestring): Copy only SIZE bytes of string.
        !          3691: 
        !          3692:        * gstddef.h: Handle __need_size_t, __need_wchar_t, __need_ptrdiff_t,
        !          3693:        and _need_null.
        !          3694: 
        !          3695:        * c-typeck.c (digest_init): Save INIT with nops not stripped
        !          3696:        to pass to convert_for_assignment.
        !          3697: 
        !          3698: Sun Mar 29 12:27:01 1992    (Eric Youngdale at [email protected])
        !          3699: 
        !          3700:        * vms.h (FUNCTION_PROLOGUE):  Redefine to add 4 bytes to local
        !          3701:        storage on the stack.
        !          3702:        (STARTING_FRAME_OFFSET): Redefine as -4.
        !          3703: 
        !          3704: Sun Mar 29 19:58:57 1992  Paul Eggert  ([email protected])
        !          3705: 
        !          3706:        * c-decl.c (store_parm_decls): Function prototypes now override
        !          3707:        old-style definitions if argument types disagree only because of
        !          3708:        promotions.
        !          3709: 
        !          3710: Sun Mar 29 17:40:56 1992  Fred Fish  (fnf at fishpond)
        !          3711: 
        !          3712:        * fixincludes (stdlib.h): Fix free/calloc/malloc/realloc return types.
        !          3713: 
        !          3714: Sun Mar 29 15:12:39 1992  Ron Guilmette  (rfg at ncd.com)
        !          3715: 
        !          3716:        * sparc.c (sparc_type_code):  Added this new routine.
        !          3717:        (tree.h):  Included to support `sparc_type_code'.
        !          3718:        (output_block_move):  Cleaned up code to handle assembler-specific
        !          3719:        aspects of internal labels.
        !          3720: 
        !          3721:        * sparc.h: (REG_ALLOC_ORDER, REG_LEAF_ALLOC_ORDER, LEAF_REGISTERS):
        !          3722:        Deleted spurious semicolons.
        !          3723:        (ASM_DECLARE_RESULT):  New macro to generate the .proc directive.
        !          3724:        (ASM_DECLARE_FUNCTION_NAME):  Changed to use ASM_DECLARE_RESULT.
        !          3725:        (ASM_OUTPUT_ADDR_VEC_ELT, ASM_OUTPUT_ADDR_DIFF_ELT):  Changed to use
        !          3726:        ASM_GENERATE_INTERNAL_LABEL when generating jump table elements.
        !          3727: 
        !          3728:        * svr4.h (SVR4):  Don't define this symbol here.  (It was never
        !          3729:        needed, and it will be used to indicate an SVR4 *host* from now on.)
        !          3730:        (SKIP_ASM_OP):  Define this new macro.
        !          3731:        (ASM_OUTPUT_SKIP):  Use SKIP_ASM_OP.
        !          3732:        (ASM_OUTPUT_INTERNAL_LABEL, ASM_GENERATE_INTERNAL_LABEL):  Added
        !          3733:        new definitions appropriate for most SVR4 assemblers.
        !          3734:        (COMMON_ASM_OP, LOCAL_ASM_OP):  Define these new macros.
        !          3735:        (ASM_OUTPUT_ALIGNED_COMMON, ASM_OUTPUT_ALIGNED_LOCAL):  Use them.
        !          3736:        (ASM_OUTPUT_ALIGNED_LOCAL):  Allocate things in common rather than
        !          3737:        trying for the .bss section (which may not work).
        !          3738:        (ASM_DECLARE_RESULT):  Define this to do nothing (if not already
        !          3739:        defained for target machine).
        !          3740:        (ASM_DECLARE_FUNCTION_NAME):  Add invocation of ASM_DECLARE_RESULT.
        !          3741: 
        !          3742:        * dwarfout.c (ASM_DWARF_POP_SECTION):  Renamed ASM_OUTPUT_POP_SECTION.
        !          3743:        (PUSHSECTION_ASM_OP, POPSECTION_ASM_OP):  New macro definitions.
        !          3744:        (SECTION_ASM_OP):  Deleted.  Replaced by PUSHSECTION_ASM_OP.
        !          3745:        (ASM_OUTPUT_PUSH_SECTION, PUSHSECTION_FORMAT):  New macro definitions.
        !          3746:        (*_SECTION):  New macro definitions for important section name strings.
        !          3747:        (ASM_DWARF_*_SECTION):  Deleted all macros to change to specific
        !          3748:        sections and replaced them globally with calls to the new parameterized
        !          3749:        ASM_OUTPUT_PUSH_SECTION macro.
        !          3750: 
        !          3751: Sat Mar 28 17:28:17 1992  Michael Meissner  ([email protected])
        !          3752: 
        !          3753:        * mips.h (MIPS_VERSION): Bump Meissner version # to 15.
        !          3754:        (output_block_move): Add function defintion.
        !          3755:        (HALF_PIC_PTR, HALF_PIC_FINISH): Provide dummy definitions.
        !          3756:        (OPTIMIZATION_OPTIONS): Set flag_gnu_linker to FALSE, and
        !          3757:        flag_no_cse_function to TRUE.
        !          3758:        (CC1PLUS_SPEC): Delete -- it just passed -fno-gnu-binutils to
        !          3759:        cc1plus.
        !          3760: 
        !          3761:        * mips.c (block_move function): Use movstri_internal, instead of
        !          3762:        emitting the moves directly.
        !          3763:        (output_block_move): New function to emit the correct code for block
        !          3764:        moving a constant amount of data.
        !          3765:        (siginfo): Change options to ps.
        !          3766: 
        !          3767:        * mips.md (movstrsi_internal): New block move pattern.
        !          3768:        (movsi_ulw): Add an appropriate REG_EQUIV regnote.
        !          3769:        (movsi_usw): Type attribute is store, not load.
        !          3770: 
        !          3771:        * mips-gbsd.h (toplevel): Include mips-bsd.h, not mips-gbsd.h.
        !          3772: 
        !          3773:        * mips-bsd.h (MD_STARTFILE_PREFIX, MD_EXEC_PREFIX): Use explicit
        !          3774:        BSD43 prefixes.
        !          3775: 
        !          3776:        * mips-sysv.h (MD_STARTFILE_PREFIX, MD_EXEC_PREFIX): Use explicit
        !          3777:        System V prefixes.
        !          3778: 
        !          3779:        * mips-svr4.h (MD_STARTFILE_PREFIX, MD_EXEC_PREFIX): Use explicit
        !          3780:        System V.4 prefixes.
        !          3781: 
        !          3782:        * decstatn.h (TARGET_MEM_FUNCTIONS): Define.
        !          3783: 
        !          3784: Sat Mar 28 15:12:39 1992  Ron Guilmette  (rfg at ncd.com)
        !          3785: 
        !          3786:        * libgcc2.c (eprintf): Make argument types comsistant with assert.h.
        !          3787:        (__builtin_new, __builtin_vec_new): Declare all external functions.
        !          3788:        (default_new_handler):  Use a macro for the "memory exausted" message.
        !          3789: 
        !          3790:        * sparcv4.h:  File completely replaced (with one that works).
        !          3791: 
        !          3792: Sat Mar 28 15:09:46 1992  Richard Stallman  ([email protected])
        !          3793: 
        !          3794:        * toplev.c (flag_gnu_linker): Default to 0 if USE_COLLECT2.
        !          3795: 
        !          3796:        * i386.h (TARGET_SWITCHES): Add svr3-shlib.
        !          3797:        (TARGET_SVR3_SHLIB): New macro.
        !          3798:        * i386v.h (ASM_OUTPUT_LOCAL): Override definition here.
        !          3799: 
        !          3800:        * Makefile.in (gcc.xtar): Update version in README.
        !          3801: 
        !          3802:        * libgcc2.c [sparc] (__builtin_saveregs): Add optional .proc,
        !          3803:        .type and .size assembler commands.
        !          3804: 
        !          3805:        * dbxout.c (dbxout_type): New arg SHOW_ARG_TYPES.  All calls changed.
        !          3806:        (dbxout_type_methods): Mostly rewritten, with Tiemann's help.
        !          3807: 
        !          3808:        * Eliminate limit on alignment value of a variable or field.
        !          3809:        * tree.h (DECL_ALIGN): Use frame_size slot.
        !          3810:        (struct tree_decl): `align' slot deleted.
        !          3811:        * print-tree.c (print_node): Print `align' or `frame_size', not both. 
        !          3812:        * expr.c (get_pointer_alignment): Don't use DECL_ALIGN of function.
        !          3813:        * c-decl.c (duplicate_decls, finish_enum): Likewise.
        !          3814:        * tree.c (make_node): Likewise.
        !          3815:        * c-common.c (decl_attributes): Eliminate limit of 255 on alignment.
        !          3816: 
        !          3817:        * collect2.c: Don't include gstdarg.h or gvarargs.h.
        !          3818:        Make error messages follow standards.
        !          3819:        (error, fatal, fatal_perror): Don't use varargs.
        !          3820:        Accept as many args as anyone tries to use.
        !          3821: 
        !          3822:        * cp-decl2.c: Get rid of -fgnu-binutils.
        !          3823: 
        !          3824:        * ns32k.h (INDIRECTABLE_ADDRESS_P): Deleted.
        !          3825:        (GO_IF_NONINDEXED_ADDRESS): Delete dupllicate test for reg+offset.
        !          3826:        (MEM_REG): Don't accept constant here.
        !          3827:        (INDIRECTABLE_2_ADDRESS_P): Adapt usage of MEM_REG.
        !          3828:        (GO_IF_INDEXING, GO_IF_INDEXABLE_ADDRESS): New macros.
        !          3829:        (GO_IF_LEGITIMATE_ADDRESS): Use them.
        !          3830: 
        !          3831: Sat Mar 28 20:48:20 1992  Chip Salzenberg  (chip at tct.com)
        !          3832: 
        !          3833:        * stor-layout.c (layout_record, layout_union):
        !          3834:        Limit effect of PCC_BITFIELD_TYPE_MATTERS to actual bitfields.
        !          3835:        (layout_decl): Do not override a packed decl's alignment.
        !          3836: 
        !          3837:        * c-common.c (decl_attributes): Don't expect a simple
        !          3838:        attribute like "packed" to be in a LIST_NODE.
        !          3839: 
        !          3840:        * c-decl.c (finish_struct): If a field has the "packed"
        !          3841:        attribute, don't override it with type's normal alignment.
        !          3842: 
        !          3843: Sat Mar 28 06:51:12 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          3844: 
        !          3845:        * integrate.c (initialize_for_inline): Replace DECL_INCOMING_RTL
        !          3846:        if it has an address shared with DECL_RTL, not just when the entire
        !          3847:        value is shared.
        !          3848: 
        !          3849:        * rs6000.c (input_operand): Clean up and make comments agree with
        !          3850:        code; no changes to what is matched.
        !          3851: 
        !          3852:        * loop.c (add_label_notes): Handle operands of type 'E'.
        !          3853: 
        !          3854:        * rs6000.c (print_operand, case 'A'): Fix typo.
        !          3855: 
        !          3856: Sat Mar 28 01:29:06 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          3857: 
        !          3858:        * output.h (current_function_uses_const_pool): New declaration.
        !          3859: 
        !          3860:        * i386.c (function_{prologue,epilogue}, simple_386_epilogue):
        !          3861:        If the constant pool is used, the PIC reg will be used. 
        !          3862: 
        !          3863:        * expr.c (expand_builtin): Add support for named pattern strlenM.
        !          3864:        * expr.h (strlen_optab): New declaration.
        !          3865:        * optabs.c (init_optabs): Initialize strlen_optabs.
        !          3866:        * i386.md (strlensi): New pattern.
        !          3867: 
        !          3868: Fri Mar 27 12:11:03 1992  Fred Fish  (fnf at fishpond)
        !          3869: 
        !          3870:        * fixinc.svr4 (dbm.h):  Fix unconditional redefinition of NULL
        !          3871: 
        !          3872:        * config.sub:  Add i486 as a distinct CPU type.  Recognize i486v4
        !          3873:        as distinct from i386v4.  Change ncr3000 to i486.
        !          3874:        * configure:  Add i486-ncr-sysv4.
        !          3875:        * config/x-ncr3000:  New file.
        !          3876: 
        !          3877: Fri Mar 27 18:44:45 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          3878: 
        !          3879:        * fold-const.c (twoval_comparison_p, eval_subst): New functions.
        !          3880:        (fold): If an operand of a comparison is a COMPOUND_EXPR, move
        !          3881:        it outside the comparison.
        !          3882:        (case GT_EXPR, ...): Replace old code to fold comparisons
        !          3883:        of comparisons with new code using new functions above.
        !          3884:        When changing code of unsigned comparisons, set variable CODE.
        !          3885: 
        !          3886:        * expr.c (get_inner_reference): Return BLKmode and -1 size for a
        !          3887:        variable-sized object instead of aborting.
        !          3888:        (do_jump, case COMPONENT_REF): If get_inner_reference returns a
        !          3889:        size of -1, don't do anything special.
        !          3890:        * fold-const.c (optimize_bit_field_compare, decode_field_reference):
        !          3891:        Likewise.
        !          3892: 
        !          3893:        * combine.c (reg_bitfield_target_p): Replace test with one that
        !          3894:        compares the register number of X with that of a register which
        !          3895:        is the target of the assignment.
        !          3896: 
        !          3897:        * loop.h (struct_induction): New field maybe_multiple.
        !          3898:        * loop.c (strength_reduce): Track when code may be executed more
        !          3899:        than once per iteration; pass to record_biv.
        !          3900:        Call update_giv_derive on every JUMP_INSN.
        !          3901:        (record_biv): Copy new maybe_multiple arg to struct induction.
        !          3902:        (record_giv): Clear maybe_multiple.
        !          3903:        (update_giv_derive): If passing JUMP_INSN, look at maybe_multiple
        !          3904:        in biv update.
        !          3905: 
        !          3906:        * expr.c (expand_expr, case MODIFY_EXPR): Add missing call to
        !          3907:        do_pending_stack_adjust.
        !          3908: 
        !          3909:        * rs6000.h (OBJECT_FORMAT_COFF): Add definition.
        !          3910: 
        !          3911: Fri Mar 27 15:58:42 1992  Richard Stallman  ([email protected])
        !          3912: 
        !          3913:        * c-typeck.c (check_format): If arg wants void *, accept any ptr.
        !          3914: 
        !          3915:        * ns32k.md (CALL_MEMREF_IMPLICIT, MOVD_FLOAT_OK):
        !          3916:        New parameters replace GAS_SYNTAX.
        !          3917:        * pc532.h (CALL_MEMREF_IMPLICIT, MOVD_FLOAT_OK): Define both.
        !          3918:        * sequent.h (CALL_MEMREF_IMPLICIT): Defined.
        !          3919: 
        !          3920:        * sequent.h (INDEX_RATHER_THAN_BASE): Defined.
        !          3921:        * ns32k.c (print_operand_address): Check it here.
        !          3922: 
        !          3923:        * ns32k.c (print_operand_address): Treat all non-ints as symbolic.
        !          3924:        (print_operand): Likewise.  Also fix typo, use PUT_ABSOLUTE_PREFIX,
        !          3925:        and test NO_ABSOLUTE_PREFIX_IF_SYMBOLIC.
        !          3926: 
        !          3927:        * svr4.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR):
        !          3928:        Output newline after section op.
        !          3929:        * i860v3.h (DTORS_SECTION_ASM_OP, CTORS_SECTION_ASM_OP):
        !          3930:        Delete newlines.
        !          3931: 
        !          3932:        * Makefile.in (clean): Don't delete stage*.
        !          3933:        (distclean): Do it here.
        !          3934:        (extraclean): Delete config/patch*.
        !          3935: 
        !          3936:        * Makefile.in (SYSCALLS.c): Target deleted.
        !          3937:        (SYSCALLS.c.X): Create SYSCALLS.c and use it in one rule.  Delete also.
        !          3938: 
        !          3939:        * Makefile.in (ld): New target.
        !          3940:        * t-* (ld, collect2*): Targets deleted.
        !          3941:        (EXTRA_PROGRAMS): Moved ld here if it was in EXTRA_PASSES.
        !          3942:        (EXTRA_PASSES): Delete ld.
        !          3943: 
        !          3944:        * gcc.c, cccp.c: Don't include sys/file.h.
        !          3945: 
        !          3946:        * fold-const.c (operand_equal_p): Floats must match bit for bit.
        !          3947: 
        !          3948:        * gcc.c (link_command_spec): Put back -u*.
        !          3949: 
        !          3950: Fri Mar 27 11:33:46 1992  Simon J. Gerraty  ([email protected])
        !          3951: 
        !          3952:        * configure (m68k-bull-sysv*): Added config for Bull DPX/2
        !          3953:        * dpx2.h, dpx2g.h: New files.
        !          3954:        * x-dpx2200, x-dpx2300, t-dpx2: New files.
        !          3955:        * gstddef.h: Added _SIZET_ to the list of protection for size_t
        !          3956: 
        !          3957: Fri Mar 27 14:47:47 1992  Paul Eggert  ([email protected])
        !          3958: 
        !          3959:        * c-typeck.c (convert_arguments): -Wconversion wrongly warned when
        !          3960:        passing enums, and didn't warn about int precision mismatches.
        !          3961: 
        !          3962:        * fold-const.c (fold): If IEEE, 0-x is not x.
        !          3963: 
        !          3964:        * cse.c (simplify_unary_operation): fabs(-0.0) is 0.0, not -0.0.
        !          3965:        * fold-const.c: Replace target_minus_zero with target_negative.
        !          3966:        (fold_convert): Warn when converting NaN constants to integer.
        !          3967:        (fold): fabs(-0.0) is 0.0, not -0.0.  0-x may not equal -x.
        !          3968:        Do not optimize X++ == C to ++X == C+1 if C is floating point,
        !          3969:        because it runs afoul of rounding error.
        !          3970:        * real.h (REAL_VALUE_NEGATIVE): Add.
        !          3971: 
        !          3972: Fri Mar 27 09:19:11 1992  Tom Wood  ([email protected])
        !          3973: 
        !          3974:        * m88k.c (emit_move_sequence): Check the size required for a zero
        !          3975:        constant.
        !          3976: 
        !          3977:        * varasm.c (const_hash, compare_constant_1, record_constant_1):
        !          3978:        For constructor of an array, include the size of the array in bytes.
        !          3979: 
        !          3980: Fri Mar 27 09:09:53 1992  Michael Meissner  ([email protected])
        !          3981: 
        !          3982:        * t-decstatn (ALL): Remove variable.
        !          3983:        * t-decrose (ALL): Ditto.
        !          3984:        * t-i386rose (ALL): Ditto.
        !          3985:        * t-encrose (ALL): Ditto.
        !          3986: 
        !          3987: Fri Mar 27 17:51:32 1992  Jim Wilson  ([email protected])
        !          3988: 
        !          3989:        * rs6000.c (first_reg_to_save): When profiling, save space for the
        !          3990:        argument registers, which need to be saved around the mcount call.
        !          3991:        (output_prolog): Mark the link register as live when profiling.
        !          3992:        (output_function_profiler): New function.  Output code to call
        !          3993:        mcount.
        !          3994:        * rs6000.h (LIB_SPEC): Replace incorrect definition.  Add
        !          3995:        -L/lib/profiled and -L/usr/lib/profiled when profiling, -lg when
        !          3996:        debugging, and -lc always.
        !          3997:        (OVERRIDE_OPTIONS): No longer zero profile_flag.
        !          3998:        (FUNCTION_PROFILER): Call output_function_profiler.
        !          3999: 
        !          4000:        * .gdbinit (complaints): Set to 20.
        !          4001:        (pbs): New command to call the cc1plus print_binding_stack function.
        !          4002: 
        !          4003:        * calls.c (expand_call): Delete obsolete references to is_builtin_new.
        !          4004: 
        !          4005:        * Makefile.in (Makefile): Add dependence on version.c.
        !          4006: 
        !          4007: Thu Mar 26 19:21:00 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          4008: 
        !          4009:        * i386.md (fixuns_truncMN2,fix_truncMdf2): Make a copy of the input
        !          4010:        operand and clobber that, rather than clobbering the operand itself.
        !          4011: 
        !          4012: Thu Mar 26 18:06:32 1992  Richard Stallman  ([email protected])
        !          4013: 
        !          4014:        * protoize.c (shortpath): Add early check of size of shortname.
        !          4015: 
        !          4016:        * expr.c (do_jump): Adjust stack after any code that might be skipped.
        !          4017: 
        !          4018: Thu Mar 26 06:37:35 1992  Michael Meissner  ([email protected])
        !          4019: 
        !          4020:        * mips.c (toplevel): If NO_STAB_H is defined, include gstab.h
        !          4021:        instead of stab.h.
        !          4022: 
        !          4023: Thu Mar 26 02:21:50 1992  Richard Stallman  ([email protected])
        !          4024: 
        !          4025:        * Makefile.in (STAGESTUFF): Add EXTRA_PROGRAMS.
        !          4026: 
        !          4027:        * configure: Reorder mips alternatives; put mips-mips-* at end.
        !          4028: 
        !          4029:        * sparc.h (FRAME_POINTER_REQUIRED): 0 if frame is too big.
        !          4030:        * sparc.c (compute_last_frame_offset): New function.
        !          4031: 
        !          4032: Wed Mar 25 21:17:36 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          4033: 
        !          4034:        * genattrtab.c (check_attr_test): Use XSTR instead of XEXP in one
        !          4035:        place.
        !          4036: 
        !          4037:        * genextract.c (mark_operand_seen): Call xrealloc properly.
        !          4038: 
        !          4039: Wed Mar 25 17:05:56 1992  Torbjorn Granlund  (tege at zevs.sics.se)
        !          4040: 
        !          4041:        * hp800.c (srcsi_operand): New function.
        !          4042:        * hp800.md (mulsi, divsi, udivsi, modsi, umodsi): Use srcsi_operand
        !          4043:        for inputs.
        !          4044:        (mulsi): Use general_operand for output.
        !          4045:        (one_cmplsi2): Use register_operand for output.
        !          4046: 
        !          4047: Wed Mar 25 15:50:12 1992  Richard Stallman  ([email protected])
        !          4048: 
        !          4049:        * m68k.md (fsgldiv pattern): If FSGLDIV_USE_S, opcode has .s, not .x.
        !          4050:        * amix.h (FSGLDIV_USE_S): Defined.
        !          4051: 
        !          4052:        * xm-rs6000.h (REAL_NM_FILE_NAME): Defined.
        !          4053: 
        !          4054:        * x-i386sco (CCLIBFLAGS): Define as empty.
        !          4055: 
        !          4056: Wed Mar 25 16:52:53 1992  Michael Meissner  (meissner at osf.org)
        !          4057: 
        !          4058:        * collect2.c (OSF/rose scan_prog_file): If we are building a
        !          4059:        program instead of a shared library, don't create an initializer
        !          4060:        function entry.
        !          4061: 
        !          4062: Tue Mar 24 04:00:00 1992  Richard Stallman  ([email protected])
        !          4063: 
        !          4064:        * Version 2.1 released.
        !          4065: 
        !          4066:        * xcoffout.h: Renamed from xcoff.h.
        !          4067:        * dbxout.c, final.c, toplev.c, varasm.c, xcoffout.c: Use new name.
        !          4068:        * Makefile.in: Corresponding changes.
        !          4069: 
        !          4070:        * dbxout.c (dbxout_type): Don't check DECL_IGNORED_P.
        !          4071: 
        !          4072:        * t-rs6000: Complete replacement, to build collect2 properly.
        !          4073: 
        !          4074:        * Makefile.in (mostlyclean): Delete sorted indices that aren't used.
        !          4075:        (extraclean): Delete patch outputs, *.d, *.Z, *.tar.
        !          4076: 
        !          4077:        * Makefile.dos (getpwd.o): New target.
        !          4078:        (OBJS, protoize, unprotoize): Add getpwd.o.
        !          4079:        (SYSCALLS.c, SYSCALLS.c.X): Copy from Makefile.in.
        !          4080: 
        !          4081: Tue Mar 24 06:26:26 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          4082: 
        !          4083:         * cse.c (cse_insn): When deleting dead code after
        !          4084:         making unconditional branch, check for end of chain.
        !          4085: 
        !          4086:        * sched.c (update_flow_info): Add code for REG_LABEL case.
        !          4087: 
        !          4088:        * function.c (instantiate_virtual_regs_1): Don't modify a MEM
        !          4089:        without copying it unless the modified MEM is valid.
        !          4090: 
        !          4091:        * cse.c (rtx_cost): Assign ASM_OPERANDS a high cost.
        !          4092: 
        !          4093: Tue Mar 24 05:48:25 1992  Ken Raeburn  ([email protected])
        !          4094: 
        !          4095:        * cp-*: Disabled 22 March changes relating to dbxout.c; the problem
        !          4096:        will be fixed properly, with more extensive reworking of the C++
        !          4097:        front end, later.  This fix was buggy.
        !          4098:        * dbxout.c (dbxout_type_methods): Reverted 22 March changes; if a
        !          4099:        template class is passed, print a warning message and emit no info
        !          4100:        about methods.
        !          4101: 
        !          4102: Mon Mar 23 14:18:30 1992    (Eric Youngdale at [email protected])
        !          4103: 
        !          4104:        * make-cc1.com: Add getpwd.c.
        !          4105: 
        !          4106: Mon Mar 23 12:53:02 1992  Jyrki Kuoppala  ([email protected])
        !          4107: 
        !          4108:        * pc532-min.h (HAVE_ATEXIT): Defined.
        !          4109: 
        !          4110:        * ns32k.c (print_operand) [PC_RELATIVE]:
        !          4111:        Always use output_address for MEM.
        !          4112: 
        !          4113:        * pc532.h (BASE_REG_NEEDED): Defined.
        !          4114: 
        !          4115: Mon Mar 23 07:28:14 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          4116: 
        !          4117:        * combine.c (try_combine): Correct error in last change; don't
        !          4118:        pass STRICT_LOW_PART or ZERO_EXTRACT to reg_overlap_mentioned_p.
        !          4119: 
        !          4120:        * sun3.h (CPP_SPEC): Delete extra brace.
        !          4121: 
        !          4122: Mon Mar 23 02:43:56 1992  Michael Tiemann  ([email protected])
        !          4123: 
        !          4124:        * cp-decl.c (pop_from_top_level): Take care of C_C_D.
        !          4125: 
        !          4126: Sun Mar 22 17:24:09 1992  Torbjorn Granlund  ([email protected])
        !          4127: 
        !          4128:        * pyr.h: Remove TARGET_INDEX.  Update other TARGET switches.
        !          4129:        Fix several comments.
        !          4130:        (REGNO_OK_FOR_BASE_P): Allow reg 0.
        !          4131:        (REGNO_OK_FOR_INDEX_P): Reformulate.
        !          4132:        (REG_OK_FOR_INDEX_P): Disallow reg 0.
        !          4133: 
        !          4134: Sun Mar 22 15:10:49 1992  Michael Meissner  ([email protected])
        !          4135: 
        !          4136:        * mips-tfile.c (mark_stabs): Make function defintion agree with
        !          4137:        prototype.
        !          4138: 
        !          4139:        * mips.md (cpu, branch_likely attributes): Make these attributes
        !          4140:        const.
        !          4141:        (all functional units): Restore functional units that look at the
        !          4142:        -mcpu= switch for scheduling now that genattrtab uses less memory.
        !          4143: 
        !          4144: Sun Mar 22 13:57:51 1992  Richard Stallman  ([email protected])
        !          4145: 
        !          4146:        * c-typeck.c (convert_for_assignment):
        !          4147:        Only explicit 0 converts to pointer.
        !          4148: 
        !          4149:        * Makefile.in (doc): Don't depend on gplus.info.
        !          4150:        (gplus.info): Target deleted.
        !          4151: 
        !          4152:        * c-decl.c (store_parm_decls): Call build_type_copy with just one arg.
        !          4153: 
        !          4154:        * cccp.c (do_include): Use entire filename when checking for repeat.
        !          4155:        Use lookup_include.
        !          4156:        (lookup_include): New function.
        !          4157: 
        !          4158:        * protoize.c (find_extern_def): Store ??? one char at a time.
        !          4159: 
        !          4160:        * sparc.h (ASM_OUTPUT_FLOAT): Fix typo.
        !          4161: 
        !          4162:        * fold-const.c (operand_equal_p): Reject NaNs and infinities.
        !          4163: 
        !          4164:        * varasm.c (immed_real_const): Distinguish minus zero from zero.
        !          4165: 
        !          4166:        * sparc.h (ASM_OUTPUT_DOUBLE, ASM_OUTPUT_FLOAT):
        !          4167:        Use `inf' for infinities.  Use hex for minus-zero.
        !          4168: 
        !          4169:        * objc-actions.c (build_selector_translation_table):
        !          4170:        Don't make a duplicate decl here for _OBJC_SELECTOR_REFERENCES.
        !          4171:        Just call finish_decl to store the initial value.
        !          4172:        Call push_obstack_nochange to balance with finish_decl.
        !          4173:        Use selector_type for declaring individual selector names.
        !          4174: 
        !          4175: Sun Mar 22 13:11:32 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          4176: 
        !          4177:        * loop.c (update_giv_derive): Correctly handle the case where
        !          4178:        more than one biv update occurs after a giv is defined.
        !          4179: 
        !          4180:        * cse.c (rehash_using_reg): Add missing arg to call to exp_equiv_p.
        !          4181: 
        !          4182:        * expmed.c (expand_mult_add): Add missing arg to call to type_for_mode.
        !          4183: 
        !          4184:        * reorg.c (fill_slots_from_thread): In the case where have a reg-reg
        !          4185:        copy and will substitute our destination for our source in the
        !          4186:        following insn, correctly check for it modifying our destination.
        !          4187:        
        !          4188: Sun Mar 22 09:20:16 1992  Michael Tiemann  ([email protected])
        !          4189: 
        !          4190:        * cp-typeck.c (unary_complex_lvalue): Don't complain about taking
        !          4191:        the ``address'' of a bound static method or member.
        !          4192: 
        !          4193:        * cp-init.c (resolve_offset_ref): Fix bug in handling of static
        !          4194:        members and member functions.
        !          4195: 
        !          4196:        * cp-decl2.c (finish_file): If CURRENT_CLASS_TYPE is non-NULL on
        !          4197:        entry to this function, punt.
        !          4198: 
        !          4199:        * cp-parse.y (template_parm): Use CLASS_TYPE_NODE instead of
        !          4200:        CLASS_TYPE value.
        !          4201: 
        !          4202:        * cp-cvt.c (build_type_conversion): Add another add-hoc rule to find
        !          4203:        unsigned->int conversion (if conversion to long does not exist).
        !          4204: 
        !          4205:        * cp-method.c (build_overload_name): Don't call `array_type_nelts'
        !          4206:        if the TYPE_DOMAIN of an array type is NULL_TREE.
        !          4207: 
        !          4208:        * cp-init.c (build_offset_ref): Set up and use DECL even in case
        !          4209:        where NAME resolves to a method.
        !          4210: 
        !          4211:        * cp-call.c (ideal_candidate): Half of Jan 28 change was missing.
        !          4212:        Now PARMS are not converted in place if BASETYPE is NULL.
        !          4213: 
        !          4214:        * cp-typeck.c (build_component_ref): Don't return a TYPE_DECL.
        !          4215: 
        !          4216:        * cp-type2.c (build_functional_cast): If CURRENT_FUNCTION_DECL is
        !          4217:        NULL, don't wrap EXPR_AS_CTOR in a NEW_EXPR.  This make it possible
        !          4218:        to parse default initializers that involve constructor calls.
        !          4219:        * cp-typeck.c (convert_for_initialization): Handle this change.
        !          4220:        * cp-method.c (dump_init): Grok INDIRECT_REFs that have
        !          4221:        TREE_HAS_CONSTRUCTOR set.
        !          4222: 
        !          4223:        * cp-decl.c (push_overloaded_decl): Don't use the
        !          4224:        DECL_ASSEMBLER_NAME for GLOB as the TREE_PURPOSE of the new GLOB.
        !          4225:        Use ORIG_NAME instead.
        !          4226: 
        !          4227:        * cp-decl.c (grokvardecl): If FIELD has incomplete type, complete it
        !          4228:        with TYPE.
        !          4229: 
        !          4230:        * cp-decl2.c (flag_this_is_variable): Define the value -2 to mean an
        !          4231:        object of known type is being constructed.
        !          4232:        * cp-decl.c (resolves_to_fixed_type_p): Test FLAG_THIS_IS_VARIABLE
        !          4233:        for the value -2 instead of testing DECL_CONSTRUCTOR_P in case we
        !          4234:        are looking at `current_class_decl'.
        !          4235:        * cp-search.c (init_vbase_pointers): Set FLAG_THIS_IS_VARIABLE to -2
        !          4236:        instead of 0.
        !          4237:        (build_vbase_vtables_init): Ditto.
        !          4238:        * cp-*.c: All tests of FLAG_THIS_IS_VARIABLE changed to reflect the
        !          4239:        new semantics.
        !          4240: 
        !          4241:        * cp-typeck.c (comptypes): Don't use IS_AGGR_TYPE_2; test explicitly
        !          4242:        that both are RECORD_TYPE.
        !          4243:        (build_binary_op_nodefault): Ditto.
        !          4244:        (convert_for_assignment): Ditto.
        !          4245:        * cp-cvt.c (convert_to_pointer): Ditto.
        !          4246:        (convert_to_pointer_force): Ditto.
        !          4247:        * cp-call.c (convert_harshness): Ditto.
        !          4248: 
        !          4249:        * cp-search.c (get_first_matching_virtual): Fix typo.
        !          4250: 
        !          4251:        * cp-tree.c (layout_basetypes): When warning about certain
        !          4252:        inheritance relationships, only print "virtual" when the
        !          4253:        inheritance is virtual.
        !          4254: 
        !          4255: Sun Mar 22 01:28:41 1992  Ken Raeburn  ([email protected])
        !          4256: 
        !          4257:        Fix dbx info for methods of template classes:
        !          4258:        * cp-decl.c (make_type_decl): New function.  Creates a TYPE_DECL
        !          4259:        node and assigns as its DECL_ASSEMBLER_NAME the encoded form of the
        !          4260:        type name as it will be used in assembler output.  All calls to
        !          4261:        build_decl(TYPE_DECL,...) changed to call this.
        !          4262:        * dbxout.c (dbxout_type_methods): Instead of skipping digits and
        !          4263:        assuming the human-readable type name follows in the assembler names
        !          4264:        for methods, use DECL_ASSEMBLER_NAME of the type.
        !          4265:        Handle the special DECL_NAME that is made for templates.
        !          4266:        * cp-lex.c (build_lang_field_decl): Set DECL_ASSEMBLER_NAME
        !          4267:        correctly if new decl is a TYPE_DECL.
        !          4268:        (build_lang_decl): Ditto.
        !          4269:        * cp-decl.c (pushdecl): Use DECL_ASSEMBLER_NAME only for
        !          4270:        FUNCTION_DECL and VAR_DECL nodes; all others use DECL_NAME.
        !          4271:        * cp-tree.h (make_type_decl): Declare it.
        !          4272: 
        !          4273:        * cp-pt.c (overload_template_name, undo_template_name_overload):
        !          4274:        Revert 4 March change.
        !          4275: 
        !          4276:        * cp-decl2.c: No longer define NEW_OVERLOAD_SCHEME.
        !          4277:        (grokfield): Use new encoding scheme always.
        !          4278: 
        !          4279:        * cp-pt.c (overload_template_name): Deleted extra assignment to
        !          4280:        IDENTIFIER_LOCAL_VALUE slot.
        !          4281: 
        !          4282:        * cp-method.c (dump_aggr_type): Use DECL_CONTEXT rather than
        !          4283:        DECL_CLASS_CONTEXT.
        !          4284: 
        !          4285:        * cp-pt.c (instantiate_class_template): Move some common code from
        !          4286:        two branches to before branch point.
        !          4287: 
        !          4288:        * cp-method.c (dump_aggr_type): Don't discard last character of
        !          4289:        context string; it's not whitespace.
        !          4290: 
        !          4291: Sun Mar 22 15:58:48 1992  Per Bothner  ([email protected])
        !          4292: 
        !          4293:        * cp-tree.h: Add more enum->int casts needed by some compilers.
        !          4294: 
        !          4295: Sun Mar 22 20:40:25 1992  Mike Stump  ([email protected])
        !          4296: 
        !          4297:        * cp-typeck.c (build_modify_expr): Handle preincrement and
        !          4298:        predecrement as valid lvals.
        !          4299: 
        !          4300:        * gplus.gperf: Finish off changing ASM to ASM_KEYWORD.
        !          4301:        * cp-hash.h: Rebuilt.
        !          4302: 
        !          4303: Sat Mar 21 15:43:04 1992  Richard Stallman  ([email protected])
        !          4304: 
        !          4305:        * c-typeck.c (build_c_cast): Don't warn if convert explicit 0 to ptr.
        !          4306: 
        !          4307:        * local-alloc.c (wipe_dead_reg): If insn has multiple sets and
        !          4308:        the reg appears in a destination, extend life to end of insn.
        !          4309:        * global-alloc.c (global_conflicts): Analogous change.
        !          4310:        (mark_reg_conflicts): New function.
        !          4311:        * combine.c (try_combine): If I2 has multiple dests, make sure
        !          4312:        we don't change one of them to overlap anything used within another.
        !          4313: 
        !          4314:        * configure (pyramid): Commented out.
        !          4315: 
        !          4316:        * toplev.c (main): Handle -gen-aux-info, with argument.
        !          4317:        (compile_file): Assume aux_info_file_name already computed.
        !          4318:        Don't make it local here.
        !          4319:        * protoize.c (munge_compile_params): Produce -aux-info.
        !          4320:        Set aux_info_file_name_index.
        !          4321:        (gen_aux_info_file): Produce and store the aux-info file name.
        !          4322:        (input_file_name_index): Renamed from filename_index.
        !          4323:        (aux_info_file_name_index): New var.
        !          4324:        * Makefile.in (SYSCALLS.c.X): Use -aux-info.
        !          4325:        * gcc.c, hp800.h, next.h, sparc.h, sun2.h, sun3.h, svr4.h:
        !          4326:        (WORD_SWITCH_TAKES_ARG): Handle -aux-info.
        !          4327:        * gcc.c (default_compilers): Pass -aux-info to cc1*.
        !          4328: 
        !          4329:        * configure (mips-*-sysv*): Renamed from mips-*-sysv and moved down.
        !          4330: 
        !          4331:        * gcc.c (execute): Undo Mar 12 change.
        !          4332: 
        !          4333:        * configure (i386-*-bsd*): New alternative.
        !          4334:        * i386bsd.h: New file.
        !          4335: 
        !          4336: Sat Mar 21 15:14:08 1992  Ron Guilmette  (rfg at ncd.com)
        !          4337: 
        !          4338:        * sparc.c (output_move_double):  Check for XEXP (op2, 0) being a
        !          4339:        LOW_SUM, rather than checking op2.  Handle both ldd and std there.
        !          4340: 
        !          4341: Sat  Mar 21 14:14:10 1992    (Eric Youngdale at [email protected])
        !          4342: 
        !          4343:        * vms.h (CPP_PREDEFINES): Do not define __GNU__.
        !          4344: 
        !          4345: Sat Mar 21 21:35:37 1992  Jyrki Kuoppala  ([email protected])
        !          4346: 
        !          4347:        * ns32k.md (call_value): Added a missing "{".
        !          4348: 
        !          4349:        * ns32k.c (print_operand): Fixed typo X -> x, FILE -> file.
        !          4350: 
        !          4351: Sat Mar 21 11:11:04 1992  Michael Meissner  ([email protected])
        !          4352: 
        !          4353:        * mips.h (MIPS_VERSION): Bump Meissner version # to 14.
        !          4354:        (CPP_PREDEFINES): Always define SYSTYPE_BSD43.
        !          4355:        (CPP_SPEC): Don't define it here.
        !          4356:        (ASM_SPEC): Pass -cpp/-nocpp/-mips1/-mips2/-mips3 to MIPS assembler,
        !          4357:        and only pass -nocpp by default unless .s files are assembled for
        !          4358:        MIPS compatibility.
        !          4359:        (LINK_SPEC): Pass -mips1/-mips2/-mips3 to MIPS linker.
        !          4360:        (MD_STARTFILE_PREFIX): Define to be /usr/lib/cmplrs/cc/ if not
        !          4361:        already defined.
        !          4362:        (NM_FLAGS): Define as appropriate for most MIPS systems.
        !          4363:        (PREFERRED_DEBUGGING_TYPE): If -ggdb prefer stabs over the normal
        !          4364:        ECOFF debug format, but -g selects ECOFF.
        !          4365:        (DEFAULT_GDB_EXTENSIONS): Define as 1.
        !          4366:        (DOLLARS_IN_IDENTIFIERS): Don't define if already defined.
        !          4367: 
        !          4368:        * mips.c (mips_output_filename): If emitting encapsulated stabs,
        !          4369:        emit #@stabs immediately after the first .file, so that the @stabs
        !          4370:        is the second symbol.  GDB 4.4 only checks symbol #2 to see whether
        !          4371:        it is encapsulated stabs, or ECOFF.
        !          4372: 
        !          4373:        * mips.md (subdi define_splits): Use ltu instead of lt.
        !          4374:        (branch_zero_true): Generate correct code when not optimizing, and
        !          4375:        an always true/false branch is generated.
        !          4376:        (branch_zero_false): Ditto.
        !          4377: 
        !          4378:        * mips-bsd.h (CPP_PREDEFINES): Always define SYSTYPE_BSD43.
        !          4379:        (CPP_SPEC): Don't define it here.  Remove -Z{BSD43,SYSV} support.
        !          4380:        Don't pass -I in here.
        !          4381:        (SYSTEM_INCLUDE_DIR): Define to be /bsd43/usr/include.
        !          4382:        (LINK_SPEC): Pass -mips1/-mips2/-mips3 to the linker.  Remove
        !          4383:        -Z{BSD43,SYSV} support.  Always pass -systype /bsd43/ to the linker.
        !          4384: 
        !          4385:        * mips-sysv.h (CPP_PREDEFINES): Always define SYSTYPE_SYSV.
        !          4386:        (CPP_SPEC): Don't define it here.  Remove -Z{BSD43,SYSV} support.
        !          4387:        Don't pass -I in here.
        !          4388:        (SYSTEM_INCLUDE_DIR): Define to be /sysv/usr/include.
        !          4389:        (LINK_SPEC): Pass -mips1/-mips2/-mips3 to the linker.  Remove
        !          4390:        -Z{BSD43,SYSV} support.  Always pass -systype /sysv/ to the linker.
        !          4391:        (MD_STARTFILE_PREFIX): Remove, this is now defined in mips.h.
        !          4392: 
        !          4393:        * mips-news.h (CPP_SPEC): Don't pass -I in here.
        !          4394:        (SYSTEM_INCLUDE_DIR): Define to be /usr/include2.0.
        !          4395:        (ASM_SPEC): Pass -cpp/-nocpp/-mips1/-mips2/-mips3 to MIPS assembler,
        !          4396:        and only pass -nocpp by default unless .s files are assembled for
        !          4397:        MIPS compatibility.
        !          4398:        (LINK_SPEC): Pass -mips1/-mips2/-mips3 to the linker.
        !          4399: 
        !          4400:        * mips-news5.h (CPP_PREDEFINES): Define SYSTYPE_SYSV.
        !          4401:        (CPP_SPEC): Don't define it here.  Remove -Z{BSD43,SYSV} support.
        !          4402:        Don't pass -I here.
        !          4403:        (LINK_SPEC): Pass -mips1/-mips2/-mips3 to the linker.
        !          4404: 
        !          4405:        * iris.h (ASM_SPEC): Pass -cpp/-nocpp/-mips1/-mips2/-mips3 to MIPS
        !          4406:        assembler, and only pass -nocpp by default unless .s files are
        !          4407:        assembled for MIPS compatibility.
        !          4408:        (LINK_SPEC): Pass -mips1/-mips2/-mips3 to the linker.
        !          4409: 
        !          4410:        * iris.h (DOLLARS_IN_IDENTIFIERS): Define as 0, for iris assembler.
        !          4411:        (NO_DOLLAR_IN_LABEL): Define, to force static constructors to use a
        !          4412:        period instead of a dollar sign.
        !          4413: 
        !          4414:        * decstatn.h (ASM_SPEC): Pass -cpp/-nocpp/-mips1/-mips2/-mips3 to
        !          4415:        MIPS assembler, and only pass -nocpp by default unless .s files are
        !          4416:        assembled for MIPS compatibility.
        !          4417:        (LINK_SPEC): Pass -mips1/-mips2/-mips3 to the MIPS linker.
        !          4418: 
        !          4419:        * decsrose.h (ASM_SPEC): Pass -cpp/-nocpp/-mips1/-mips2/-mips3 to
        !          4420:        MIPS assembler, and only pass -nocpp by default unless .s files are
        !          4421:        assembled for MIPS compatibility.
        !          4422:        (LINK_SPEC): Pass -mips1/-mips2/-mips3 to the MIPS linker.
        !          4423: 
        !          4424:        * Makefile.in (collect2.o): Define macros where the standard places
        !          4425:        binaries are installed, so that if it is invoked outside of gcc, it
        !          4426:        has a better chance of finding the correct version of the tools to
        !          4427:        invoke.
        !          4428: 
        !          4429:        * mips-tdump.c (toplevel): Declare things void * on Silicon Graphics.
        !          4430: 
        !          4431:        * mips-tfile.c (toplevel): Declare things void * on Silicon
        !          4432:        Graphics.
        !          4433:        (stabs_seen): Move static variable to file scope.
        !          4434:        (mark_stabs): New function to put out the @stabs symbol for GDB to
        !          4435:        switch to encapsulated stabs.
        !          4436:        (pseudo_ops): Call mark_stabs if #@stabs found.
        !          4437:        (parse_stabs_common): Call mark_stabs if needed to add @stabs.
        !          4438: 
        !          4439:        * sdbout.c (sdbout_dequeue_anonymous_types): Don't core dump if
        !          4440:        TREE_VALUE is null.
        !          4441: 
        !          4442:        * decstabs.h (new file): DECstation w/encapsulated stabs.
        !          4443:        * irisgdb.h (new file): SGI iris w/encapsulated stabs.
        !          4444:        * mips-gbsd.h (new file): Mips BSD43 w/encapsulated stabs.
        !          4445:        * mips-gdb.h (new file): Mips w/encapsulated stabs.
        !          4446:        * mips-gnews.h (new file): Sony NEWS w/encapsulated stabs.
        !          4447:        * mips-gnews5.h (new file): Sony NEWS 5.0 w/encapsulated stabs.
        !          4448:        * mips-gsvr4.h (new file): Mips SV.4 w/encapsulated stabs.
        !          4449:        * mips-gsysv.h (new file): Mips SV.3 w/encapsulated stabs.
        !          4450:        * mips-svr4.h (new file): Mips System V.4.
        !          4451:        * x-iris (new file): Specify that iris needs alloca.o since it's
        !          4452:        alloca is buggy.
        !          4453: 
        !          4454:        * dbxout.c (toplevel): If NO_STAB_H is defined, include gstab.h just
        !          4455:        like if USG is defined.
        !          4456:        * final.c (toplevel): Ditto.
        !          4457:        * mips-tfile.c (toplevel): Ditto.
        !          4458:        * xcoffout.c (toplevel): Ditto.
        !          4459: 
        !          4460:        * xm-mips.h (NO_STAB_H): Define, except on OSF/1.
        !          4461: 
        !          4462: Fri Mar 20 23:51:54 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          4463: 
        !          4464:        * reg-stack.c (subst_asm_stack_regs): A REG_UNUSED note never
        !          4465:        applies to an input reg, even if that reg is tied to an output.
        !          4466: 
        !          4467:        * reg-stack.c (record_asm_reg_life): Use XVECLEN only on a PARALLEL.
        !          4468:        (subst_asm_stack_regs): Likewise.
        !          4469: 
        !          4470: Fri Mar 20 18:57:43 1992  Michael Meissner  ([email protected])
        !          4471: 
        !          4472:        * mips.h (MIPS_VERSION): Bump Meissner version # to 13.
        !          4473:        (mips_declare_object): Declare new function.
        !          4474:        (ASM_OUTPUT_LABEL): Remove cruft from when collect spit out assembly
        !          4475:        language instead of C code.
        !          4476:        (ASM_GLOBALIZE_LABEL): Ditto.
        !          4477:        (ASM_OUTPUT_INT): Ditto.
        !          4478:        (ASM_OUTPUT_INT_CONST): Remove, no longer used.
        !          4479:        (ASM_OUTPUT_PTR_INT_SUM): Ditto.
        !          4480:        (ASM_OUTPUT_LABEL): Don't set that we've seen an identifier here.
        !          4481:        (ASM_DECLARE_OBJECT_NAME): New macro, call mips_declare_object to
        !          4482:        emit the label, and mark that no .extern is needed for the name.
        !          4483:        (ASM_OUTPUT_COMMON, ASM_OUTPUT_LOCAL): Call mips_declare_object.
        !          4484: 
        !          4485:        * mips.c (mips_declare_object): New function to output the stuff
        !          4486:        needed for global variables, bss variables, and static bss
        !          4487:        variables.
        !          4488: 
        !          4489: Fri Mar 20 14:13:32 1992  Richard Stallman  ([email protected])
        !          4490: 
        !          4491:        * cp-xref.c (GNU_xref_file): Get rid of arbitrary limit--malloc nmbuf.
        !          4492: 
        !          4493:        * cp-parse.y (scoped_id): Error if spec'd type is undefined.
        !          4494: 
        !          4495:        * m68k.c (output_function_epilogue): Output at least a nop.
        !          4496: 
        !          4497:        * xm-hp320.h (USG): Defined.
        !          4498: 
        !          4499:        * m68k.c (output_function_prologue, output_function_epilogue):
        !          4500:        Change %I to %0I.
        !          4501:        (print_operand): Likewise.
        !          4502: 
        !          4503:        * varasm.c (data_section): Add forward decl.
        !          4504: 
        !          4505:        * m68k.c (print_operand): Make %! print fpcr.
        !          4506:        * crds.h, hp320.h, mot3300.h, news.h, tower-as.h (PRINT_OPERAND):
        !          4507:        Likewise.
        !          4508:        * m68k.md (fix_trunc*): Use %!.
        !          4509: 
        !          4510:        * toplev.c (compile_file): Optionally call setvbuf for output file.
        !          4511: 
        !          4512:        * loop.c (move_movables): Fix typo.
        !          4513: 
        !          4514: Fri Mar 20 17:42:12 1992  Paul Eggert  ([email protected])
        !          4515: 
        !          4516:        * Makefile.in (SYSCALLS.c): Use `cat' to create this file, instead
        !          4517:        of having it consist of `#include' directives.
        !          4518:        (mostlyclean): Delete SYSCALLS.c.
        !          4519:        * SYSCALLS.c: File deleted.
        !          4520: 
        !          4521:        * getpwd.c (new file): Get and cache working directory, using PWD
        !          4522:        if it works and getcwd otherwise.
        !          4523:        * Makefile.in (OBJS, protoize): add getpwd.o
        !          4524:        * cp-xref.c (GNU_xref_file): Likewise.
        !          4525:        * dbxout.c (dbxout_init): Likewise.
        !          4526:        * dwarfout.c (output_compile_unit_die): Likewise.
        !          4527:        * protoize.c (main): Likewise.
        !          4528: 
        !          4529: Fri Mar 20 12:58:57 1992  Ron Guilmette  (rfg at ncd.com)
        !          4530: 
        !          4531:        * dwarfout.c (location_or_const_value_attribute):  Fixed to use
        !          4532:        DECL_INCOMING_RTL as the "location" for formal parameter variables.
        !          4533: 
        !          4534: Fri Mar 20 13:26:16 1992  Michael Collison  ([email protected])
        !          4535: 
        !          4536:        * i386rose.h (INIT_SECTION_ASM_OP): OSF doesn't support a true
        !          4537:        initialization section.
        !          4538: 
        !          4539: Fri Mar 20 07:23:15 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          4540: 
        !          4541:        * m88k.md (set zero_extract patterns): Use the + constraint.
        !          4542: 
        !          4543:        * crtstuff.c (__do_global_ctors_aux): Declare it.
        !          4544: 
        !          4545:        * m88k.h (CONDITIONAL_REGISTER_USAGE): Mark the PIC register fixed,
        !          4546:        but not call used.
        !          4547:     
        !          4548:        * m88k.c (m88k_builtin_saveregs): Get a properly aligned block.
        !          4549: 
        !          4550:        * m88k.md (cpu attribute): Use const form.
        !          4551: 
        !          4552:        * m88k.h, m88k.c, m88kdgux.h (uses of *_ASM_OP): Add tabs.
        !          4553: 
        !          4554: Fri Mar 20 05:46:26 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          4555: 
        !          4556:        * expmed.c (emit_store_flag): Need to prevent SUBTARGET from being
        !          4557:        OP0 in one more case.
        !          4558: 
        !          4559:        * loop.c (add_label_notes): New function.
        !          4560:        (move_movables): Use it when hoisting a `move_insn' movable
        !          4561:        to ensure we create any required REG_LABEL notes.
        !          4562: 
        !          4563:        * hp800.h (CONDITIONAL_REGISTER_USAGE): Make reg 27 a global_reg
        !          4564:        for now.
        !          4565: 
        !          4566:        * combine.c (make_field_assignment): Use correct mode when shifting
        !          4567:        the source of the assignment.
        !          4568: 
        !          4569:        * fold-const.c (invert_truthvalue): Correct error in last change.
        !          4570: 
        !          4571: Thu Mar 19 18:59:24 1992  Richard Stallman  ([email protected])
        !          4572: 
        !          4573:        * stmt.c (expand_end_case): Convert do_tablejump arg to Pmode.
        !          4574: 
        !          4575: Thu Mar 19 16:54:15 1992  Michael Meissner  ([email protected])
        !          4576: 
        !          4577:        * collect2.c (main): Only pass -fxxx and -mxxx options to gcc when
        !          4578:        building constructors.
        !          4579: 
        !          4580: Thu Mar 19 16:44:21 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          4581: 
        !          4582:        * fold-const.c (invert_truthvalue): Correctly check for floating
        !          4583:        comparison.
        !          4584: 
        !          4585: Thu Mar 19 14:42:49 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          4586: 
        !          4587:        * function.c (expand_main_function): Do so if INVOKE__main is defined.
        !          4588:        * libgcc2.c (__main): Provide if INVOKE__main is defined.
        !          4589:        * crtstuff.c (__do_global_ctors_aux): Renamed from __do_global_ctors.
        !          4590:        (__do_global_ctors): Simple non-static function that invokes
        !          4591:        __do_global_ctors_aux.
        !          4592: 
        !          4593:        * crtstuff.c ({CTOR,DTOR}_LIST_{BEGIN,END}): Allow alternate way
        !          4594:        to represent and define __{CTOR,DTOR}_LIST__.
        !          4595:        * i386v.h, aix386.h (CTOR_LIST_{BEGIN,END}): Use these to push
        !          4596:        instead of the funny definition of CTORS_SECTION_ASM_OP.
        !          4597:        * svr3.h (CTORS_SECTION_ASM_OP): Use the .init section.
        !          4598: 
        !          4599:        * m88kv3.h (CTOR_LIST_BEGIN): Emit code to .init to push a zero.
        !          4600:        (CTOR_LIST_END): Do nothing.
        !          4601:        (ASM_OUTPUT_CONSTRUCTOR): Emit code to .init to push the address.
        !          4602:        (DTOR_LIST_{BEGIN,END}): Output a block of four words.
        !          4603:        (ASM_OUTPUT_DESTRUCTOR): Output the address and three words of -1.
        !          4604:        (DO_GLOBAL_DTORS_BODY): Ignore all values of -1.
        !          4605: 
        !          4606:        * real.h (REAL_VALUE_ISNAN): Define.
        !          4607:        * fold-const.c (target_isnan): New function.
        !          4608:        * sun3.h, sparc.h (ASM_OUTPUT_{FLOAT,DOUBLE}): Use REAL_VALUE_ISNAN.
        !          4609: 
        !          4610:        * sun3.h: Delete extra #endif.
        !          4611: 
        !          4612: Thu Mar 19 14:25:50 1992  Torbjorn Granlund  ([email protected])
        !          4613: 
        !          4614:        * hp800.c (output_move_double): Don't check for CONST_DOUBLE
        !          4615:        when classifying operand types, CONSTANT_P now includes it.
        !          4616:        Use split_double to assign operand vectors for CNSTOP.
        !          4617: 
        !          4618: Thu Mar 19 13:59:16 1992  Richard Stallman  ([email protected])
        !          4619: 
        !          4620:        * hp320.h (SPACE_AFTER_L_OPTION): Defined.
        !          4621:        (LIB_SPEC): Defined. 
        !          4622: 
        !          4623:        * toplev.c (compile_file): Output aux_info_file in source file's dir.
        !          4624: 
        !          4625: Wed Mar 18 17:42:12 1992  Paul Eggert  ([email protected])
        !          4626: 
        !          4627:        * c-aux-info.c (gen_aux_info_record): Don't put the absolute path
        !          4628:        name into the output file: it's useless, expensive, and often wrong.
        !          4629:        Use "." instead.
        !          4630:        * protoize.c (is_syscalls_file): Look for SYSCALLS.c only at the
        !          4631:        end of the file name.
        !          4632:        (abspath): Remove useless test of '\0' versus '/'.  Add apollo fix.
        !          4633:        (shortpath): Stop when replacement filename is longer than the
        !          4634:        original; this avoids buffer overrun.  Do not pretend that
        !          4635:        `a/b/c' is a path prefix of `a/b/cd'.
        !          4636:        (gen_aux_info_file): Report errors when compilation fails.
        !          4637:        Do not use stdio in child process.
        !          4638:        Don't say `exit(errno)'; errno might be too large.
        !          4639:        (process_aux_info_file): Increment error count if aux info file cannot
        !          4640:        be generated.  Allow the invocation filename to be relative;
        !          4641:        for now, it will always be ".".
        !          4642:        (do_processing): Replace strlen (x) with sizeof (x) - 1.
        !          4643: 
        !          4644: Thu Mar 19 13:31:24 1992  Jim Wilson  ([email protected])
        !          4645: 
        !          4646:        * cse.c (simplify_binary_operation, PLUS and MINUS cases): Use
        !          4647:        arg0s and arg1s instead of arg0 and arg1, so that resulting values
        !          4648:        will be sign extended.
        !          4649: 
        !          4650:        * sched.c (sched_analyze_1): Don't call sched_analyze_2 at the end.
        !          4651:        This code was never executed, and is wrong.
        !          4652:        (sched_analyze_2): Convert from if statements to a switch.
        !          4653:        Add support for PRE_DEC/PRE_INC/POST_DEC/POST_INC; pass them to
        !          4654:        sched_analyze_1 because they are writes.
        !          4655:        (sched_analyze_insn): Delete special case code to handle REG_INC
        !          4656:        notes, obsoleted by change above.
        !          4657: 
        !          4658:        * sparc.c (output_block_move): Rewrite to more efficiently handle
        !          4659:        constant length strings whose length is not a multiple of their
        !          4660:        alignment.  Also, the length of strings handled without a loop now
        !          4661:        is a multiple of their alignment, instead of fixed size.
        !          4662: 
        !          4663:        * objc-actions.c (build_selector_translation_table): Add cast for
        !          4664:        array index from enum to int to satisfy old compiler.
        !          4665: 
        !          4666:        * c-parse.gperf: Change ASM to ASM_KEYWORD.
        !          4667:        * gplus.gperf: Likewise.
        !          4668: 
        !          4669:        * Makefile.in (install-man): Delete duplicate lines.
        !          4670: 
        !          4671: Thu Mar 19 02:32:06 1992  Richard Stallman  ([email protected])
        !          4672: 
        !          4673:        * c-decl.c (init_decl_processing): Disable `sqrt'.
        !          4674: 
        !          4675: Thu Mar 19 01:09:16 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          4676: 
        !          4677:        * i386.c (output_move_double): Properly check for signedness in a
        !          4678:        const_double.
        !          4679: 
        !          4680: Wed Mar 18 18:51:37 1992  Richard Stallman  ([email protected])
        !          4681: 
        !          4682:        * gcc.c (link_command_spec) [not LINK_LIBGCC_SPECIAL]: Put back -s.
        !          4683: 
        !          4684:        * config.sub (i486): Accept as CPU type.
        !          4685: 
        !          4686:        * collect2.c (do_wait): Handle NO_SYS_SIGLIST.
        !          4687:        * xm-hp320.h (NO_SYS_SIGLIST): Defined.
        !          4688: 
        !          4689: Wed Mar 18 15:58:31 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          4690: 
        !          4691:        * crtstuff.c, dwarfout.c, svr3.h, svr4.h (*_ASM_OP): Remove tabs
        !          4692:        and newlines.
        !          4693:        * dwarfout.c, svr3.h, svr4.h
        !          4694:        (ASM_OUTPUT_*, ASM_DECLARE_*, ASM_DWARF_*): Put tabs here when needed.
        !          4695: 
        !          4696: Wed Mar 18 17:26:44 1992  Ron Guilmette  (rfg at ncd.com)
        !          4697: 
        !          4698:        * svr4.h (MULTIBYTE_CHARS):  Added definition.
        !          4699: 
        !          4700: Wed Mar 18 17:36:30 1992  Michael Meissner  ([email protected])
        !          4701: 
        !          4702:        * gcc.c (collect_obstack): New static obstack to build the
        !          4703:        environment variables to pass to collect, so that it can reliably
        !          4704:        find the compiler passes.
        !          4705:        (putenv): New function to add a variable to the environment.
        !          4706:        Stubbed out for MSDOS and VMS at present, or if HAVE_PUTENV is
        !          4707:        defined.
        !          4708:        (putenv_from_paths): New function to take a path list, and build
        !          4709:        the corresponding environment variable for it.
        !          4710:        (main): Pass argv[0] to collect through the environment variable
        !          4711:        COLLECT_GCC.  Rebuild the COMPILER_PATH and LIBRARY_PATH
        !          4712:        environment variables to include all prefixes specified with -B,
        !          4713:        -b, and -V.  Construct COLLECT_GCC_OPTIONS environment variable to
        !          4714:        consist of all of the options passed to gcc, except for the -B,
        !          4715:        -b, and -V options.
        !          4716: 
        !          4717:        * collect2.c (main): Correctly size the number of arguments passed
        !          4718:        to the compiler when building the constructor lists to account for
        !          4719:        any options passed through the environment variable
        !          4720:        COLLECT_GCC_OPTIONS.  If the environment variable COLLECT_GCC
        !          4721:        specifies a full pathname, use that for the pathname to invoke gcc
        !          4722:        with.  Print the name "collect2" in lowercase if -v.
        !          4723: 
        !          4724:        * xm-mips.h (HAVE_PUTENV): Define if OSF/1.
        !          4725: 
        !          4726: Wed Mar 18 07:27:50 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          4727: 
        !          4728:        * hp800.c (actual_fsize): Remove duplicate declaration.
        !          4729:        (profile_flag): Remove definition; defined in flags.h.
        !          4730:        (hp_profile_labelno, local_fsize, save_fregs): Move declarations to
        !          4731:        top of file.
        !          4732: 
        !          4733:        * hp800.h (OPTIMIZATION_OPTIONS): Do same thing as Sparc.
        !          4734: 
        !          4735:        * combine.c (reg_bitfield_target_p): Use rtx_equal_p instead of
        !          4736:        assuming the actual rtx is used.
        !          4737: 
        !          4738: Wed Mar 18 00:20:38 1992  Richard Stallman  ([email protected])
        !          4739: 
        !          4740:        * gstddef.h: Handle _GCC_PTRDIFF_T, _GCC_SIZE_T, _GCC_WCHAR_T.
        !          4741:        * fixincludes: Use those macros in inserted conditionals.
        !          4742: 
        !          4743:        * gstddef.h: Handle _T_SIZE_ and _T_PTRDIFF_, like _T_WCHAR_.
        !          4744: 
        !          4745:        * sun3.h (CPP_SPEC): Delete the alternative for fpa as default.
        !          4746:        Define symbols with __ as well as without.
        !          4747: 
        !          4748:        * hp320.h (LINK_LIBGCC_SPECIAL, RELATIVE_PREFIX_NOT_LINKDIR):
        !          4749:        Define unless USE_GAS.
        !          4750: 
        !          4751: Tue Mar 17 17:19:07 1992  Richard Stallman  ([email protected])
        !          4752: 
        !          4753:        * fixincludes (making directories): Always use find.
        !          4754: 
        !          4755:        * c-decl.c (pushdecl): Don't warn if define nonansi builtin as static,
        !          4756:        or if define ANSI builtin as inline static.
        !          4757: 
        !          4758:        * hp800hpux.h (LINK_LIBGCC_SPECIAL, RELATIVE_PREFIX_NOT_LINKDIR): New.
        !          4759: 
        !          4760:        * fixinc.svr4: Special changes for Sony MIPS-NEWS.
        !          4761: 
        !          4762: Tue Mar 17 15:12:57 1992  Tim Moore  ([email protected])
        !          4763: 
        !          4764:        * hp800.h (INITIAL_FRAME_POINTER_OFFSET): Get sign right, include
        !          4765:        fixed area.
        !          4766: 
        !          4767: Tue Mar 17 14:06:01 1992  Richard Stallman  ([email protected])
        !          4768: 
        !          4769:        * Makefile.in (all.indirect): Renamed from all-internal.
        !          4770: 
        !          4771:        * t-mips (ALL): Deleted.
        !          4772: 
        !          4773: Tue Mar 17 10:35:18 1992  Michael Meissner  ([email protected])
        !          4774: 
        !          4775:        * halfpic.c (half_pic_address_p): Fix typo in last change.
        !          4776: 
        !          4777:        * x-decrose (CLIB): Add -lbsd, since vfork moved to libbsd.a.
        !          4778:        * x-encrose (CLIB): Ditto.
        !          4779:        * x-i386rose (CLIB): Ditto.
        !          4780: 
        !          4781: Tue Mar 17 07:02:29 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          4782: 
        !          4783:        * mips.md (movdi): FP_REGS don't allow DImode, so remove them
        !          4784:        from the constraints.
        !          4785: 
        !          4786:        * mips.md (unaligned moves): Use UNSPEC to distinguish SETs that are
        !          4787:        unaligned from those that aren't.
        !          4788: 
        !          4789:        * combine.c (try_combine): Update LOG_LINKS correctly when we split a
        !          4790:        PARALLEL that loads from memory both as a full-word and sign-extended.
        !          4791: 
        !          4792: Tue Mar 17 21:23:10 1992    (Eric Youngdale at [email protected])
        !          4793: 
        !          4794:        * vax.c (split_quadword_operands): Fix typo.
        !          4795: 
        !          4796:        * make-cc1.com: Add xcoffout.c.
        !          4797: 
        !          4798: Mon Mar 16 17:12:26 1992  Richard Stallman  ([email protected])
        !          4799: 
        !          4800:        * configure (mips-dec-ultrix*): Use x-decstatn.
        !          4801:        * x-decstatn (CLIB): Delete.
        !          4802: 
        !          4803:        * expr.c (move_by_pieces_1): Add negative ints--don't subtract ints.
        !          4804: 
        !          4805:        * next.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Turned off.
        !          4806:        * t-next (EXTRA_PROGRAMS, ld): Use collect2.
        !          4807:        * configure (m68k-next-*): Use t-next.
        !          4808: 
        !          4809:        * mips-bsd.h (TARGET_MEM_FUNCTIONS): Defined.
        !          4810: 
        !          4811: Mon Mar 16 14:04:08 1992  Tim Moore  ([email protected])
        !          4812: 
        !          4813:        * hp800.md (movsi + 10, movsi + 11): Add '*' to constraints.
        !          4814:        (fix_truncsfsi2, fix_truncdfsi2): Add an alternative to put result
        !          4815:        directly in a general register.
        !          4816:        * hp800.h (ASM_DECLARE_FUNCTION_NAME): If function is not
        !          4817:        TREE_PUBLIC, don't do the argument descriptor magic.
        !          4818:        (EXPAND_BUILTIN_SAVEREGS): call hppa_builtin_saveregs.
        !          4819:        (LEGITIMIZE_ADDRESS): Don't legitimize CONST addresses.
        !          4820:        (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP): Put tabs back in.
        !          4821:        * xm-hp800.h (S_ISDIR): Define for BSD.
        !          4822: 
        !          4823:        * hp800.c (hppa_builtin_saveregs): New function.
        !          4824:        * va-hp800.h : Rewrite.
        !          4825: 
        !          4826: 
        !          4827: Sun Mar 15 23:38:39 1992  Richard Stallman  ([email protected])
        !          4828: 
        !          4829:        * objc-actions.c (really_start_method): Dynamically allocate `buf'.
        !          4830: 
        !          4831:        * sparc.h (TARGET_HOPE_ALIGN): Renamed from TARGET_ALIGN.
        !          4832:        * sparc.c (output_move_double, output_fp_move_double): Use new name.
        !          4833:        * sparc.h (TARGET_FORCE_ALIGN): New flag.
        !          4834:        (FUNCTION_ARG_BOUNDARY): Defined.
        !          4835:        (FUNCTION_ARG, FUNCTION_INCOMING_ARG, FUNCTION_ARG_ADVANCE):
        !          4836:        (FUNCTION_ARG_PARTIAL_NREGS): Handle TARGET_FORCE_ALIGN.
        !          4837:        (ROUND_REG): New subroutine macro.
        !          4838: 
        !          4839:        * sparc.h (CC1_SPEC): Don't try to recognize -dalign.
        !          4840: 
        !          4841:        * hp320.h (ASM_OUTPUT_ASCII): Put tab here.
        !          4842:        (ASCII_DATA_ASM_OP): Not here.
        !          4843:        * mot3300.h: Likewise.
        !          4844: 
        !          4845:        * Makefile.in (mostlyclean): Don't delete .s or .i files.
        !          4846:        (extraclean): Do that here.
        !          4847: 
        !          4848:        * a29k.h, fx80.h, gmicro.h, i860v3.h, i860v4.h (*_ASM_OP): Remove tabs.
        !          4849:        * m88kv4.h, m88kdgux.h, mips.h, romp.h, rs6000.h: Likewise.
        !          4850:        * sun386.h, tower-as: Likewise.
        !          4851:        * arm.h, hp800.h (*_ASM_OP): Remove extra tabs and newlines.
        !          4852:        * m68ksgs.h (*_ASM_OP): Remove tabs.
        !          4853:        (ASM_OUTPUT_*): Put the tabs here when appropriate.
        !          4854:        * m68kv4.h, m88k.h, next.h: Likewise.
        !          4855: 
        !          4856: Sun Mar 15 18:37:49 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          4857: 
        !          4858:        * reload1.c (inc_for_reload): Rework to try to do addition in
        !          4859:        INCLOC rather than assuming when it can be done; this fixes a bug
        !          4860:        on hp800 and generates better code on some CISC machines.
        !          4861: 
        !          4862: Sun Mar 15 15:12:39 1992  Ron Guilmette  (rfg at ncd.com)
        !          4863: 
        !          4864:        * crtstuff.c:  If defined, invoke INIT_SECTION_PREAMBLE.
        !          4865: 
        !          4866:        * xm-sparcv4.h, x-sparcv4:  New files.
        !          4867:        * configure (sparc-*-sysv4*):  Use them.
        !          4868: 
        !          4869: Sun Mar 15 16:41:33 1992  Richard Stallman  ([email protected])
        !          4870: 
        !          4871:        * sparc.md (subdi3): Fix unterminated comment.
        !          4872: 
        !          4873: Sun Mar 15 04:08:59 1992  Torbjorn Granlund  (tege at zevs.sics.se)
        !          4874: 
        !          4875:        * hp800.c (output_block_move): Major rewrite.
        !          4876:        * hp800.md (movstrsi): Rewrite to match new output_block_move.  FAIL
        !          4877:        if the actual operands are better handled by a library call.
        !          4878:        (movstrsi recognizer): Rewrite.
        !          4879: 
        !          4880:        * sparc.md (movstrsi): FAIL for all blocks with unknown size.
        !          4881: 
        !          4882: Sat Mar 14 19:06:02 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          4883: 
        !          4884:        * c-decl.c (builtin_function): Don't declare static.
        !          4885: 
        !          4886: Sat Mar 14 15:57:53 1992  Richard Stallman  ([email protected])
        !          4887: 
        !          4888:        * expr.c (get_pointer_alignment): Convert bytes to bits
        !          4889:        when handling PLUS_EXPR.
        !          4890: 
        !          4891:        * cp-search.c (push_stack_level): Declare tp as char *.
        !          4892: 
        !          4893:        * mips.c (mips_asm_file_end): Use TREE_ASM_WRITTEN to avoid
        !          4894:        duplicate .extern commands.
        !          4895: 
        !          4896:        * mips-tdump.c: Include fcntl.h.
        !          4897:        * mips-tfile.c (open, fstat): Declarations deleted.
        !          4898: 
        !          4899:        * xm-mipsnews.h: New file.
        !          4900:        * mips-news5.h: New file.  Needs papers from Ron Cole.
        !          4901:        * configure (mips-sony-sysv*): New alternative.
        !          4902: 
        !          4903: Sat Mar 14 07:11:14 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          4904: 
        !          4905:        * integrate.c (initialize_for_inline): If DECL_INCOMING_RTL is
        !          4906:        the same object as DECL_RTL, store copy in both places.
        !          4907: 
        !          4908: Sat Mar 14 10:12:39 1992  Michael Tiemann  ([email protected])
        !          4909: 
        !          4910:        * cp-spew.c (yylex): Fix some fencepost errors found by Chip
        !          4911:        Salzenberg.
        !          4912: 
        !          4913:        * cp-init.c (is_aggr_typedef): Now calls `error' instead of `fatal'
        !          4914:        if NAME is non-AGGR type.
        !          4915: 
        !          4916:        * cp-class.c (duplicate_tag_error): Set CLASSTYPE_VBASE_SIZE.
        !          4917: 
        !          4918: Sat Mar 14 00:28:57 1992  Richard Stallman  ([email protected])
        !          4919: 
        !          4920:        * gcc.c (do_spec_1): Don't copy closing delim in %(...) or %[...].
        !          4921:        (read_specs): Don't ignore newline that ends a comment.
        !          4922:        (handle_braces): Properly terminate scan for %*.
        !          4923:        (validate_all_switches): Scan any extra specs from specs file.
        !          4924: 
        !          4925:        * x-iris: File deleted.
        !          4926: 
        !          4927:        * cccp.c (output_line_command): Avoid outputting line number 0.
        !          4928: 
        !          4929:        * final.c (asm_fprintf): Handle %O.
        !          4930:        * m68k.c: Insert %O before `move' in MOTOROLA calls to asm_fprintf.
        !          4931: 
        !          4932: Fri Mar 13 20:17:40 1992  Mike Stump  ([email protected])
        !          4933: 
        !          4934:        * cp-typeck.c, cp-type2.c, cp-tree.c, cp-spew.c, cp-search.c,
        !          4935:        cp-parse.y, cp-init.c, cp-decl.c, cp-cvt.c, cp-class.c, cp-call.c:
        !          4936:        Merged in updated cp-* files for gcc-2.1.
        !          4937: 
        !          4938:        Thu Mar 12 02:29:26 1992  Mike Stump  ([email protected])
        !          4939: 
        !          4940:        * cp-type2.c (build_functional_cast): remove incorrect error message.
        !          4941: 
        !          4942: Fri Mar 13 14:54:23 1992  Richard Stallman  ([email protected])
        !          4943: 
        !          4944:        * objc-actions.c (get_arg_type_list) [not NEXT_OBJC_RUNTIME]:
        !          4945:        1st arg always an object.
        !          4946:        (synth_module_prologue): Don't use parser interface, just build nodes.
        !          4947:        Use `void *' to avoid problems with TAG_SUPER vs _TAG_SUPER.
        !          4948:        (TAG_SUPER, _msg_id, _msgSuper_id): Deleted.
        !          4949:        (objc_getClass_id, objc_getMetaClass_id): Deleted.
        !          4950:        (selector_type): Renamed from _selector_type.
        !          4951:        (forward_declare_categories, build_objc_symtab_template):
        !          4952:        Don't use parser interface, just build nodes.
        !          4953:        (create_builtin_decl): New function.
        !          4954: 
        !          4955:        * hp800hpux.h (LIB_SPEC): New definition.
        !          4956: 
        !          4957:        * arm.h (TARGET_WHEN_DEBUGGING): Name corrected.
        !          4958: 
        !          4959:        * protoize.c (abspath): Make abs_buffer a little longer.
        !          4960: 
        !          4961:        * encore.h (NO_ABSOLUTE_PREFIX_IF_SYMBOLIC): Defined.
        !          4962:        (EXTERNAL_PREFIX, IMMEDIATE_PREFIX): Defined.
        !          4963:        (TARGET_DEFAULT): Changed to 9.
        !          4964:        (ENCORE_ASM): Defined.
        !          4965: 
        !          4966:        * sequent.h (PRINT_OPERAND, PRINT_OPERAND_ADDRESS): Deleted.
        !          4967:        (IMMEDIATE_PREFIX): Define as 0.
        !          4968:        (SEQUENT_ASM): Defined.
        !          4969:        * ns32k.c (print_operand): Output f.p. as ints if SEQUENT_ASM.
        !          4970:        Output doubles using 0f, not 0d, if ENCORE_ASM.
        !          4971: 
        !          4972:        * configure: If no configuration matches, print error and exit.
        !          4973:        (m68k-sun-sunos*): Renamed from m68k-sun-sunos4*.
        !          4974: 
        !          4975:        * configure (copy): New variable.
        !          4976:        If hard link fails, make a copy.
        !          4977: 
        !          4978:        * mips.c (mips_asm_file_end): Don't set flags in identifiers.
        !          4979:        Just output every identifier found in extern_head.
        !          4980: 
        !          4981:        * configure (sparc-tti-*): Renamed from sparc-unicom-*.
        !          4982:        (m68k-tti-*): Replaced.
        !          4983:        (m68k-tti2-*): Deleted
        !          4984: 
        !          4985:        * config.sub (pbd): Alias for sparc-tti, not sparc-unicom.
        !          4986:        (pbb): New machine alias.
        !          4987:        (*-tti): Implies os=-sysv3.
        !          4988:        (-oss*): Alias for -sysv3.
        !          4989: 
        !          4990: Fri Mar 13 17:20:52 1992  david d [zoo] zuhn  (zoo at lynx.spa.umn.edu)
        !          4991: 
        !          4992:        * x-mips: add -mld.
        !          4993: 
        !          4994: Fri Mar 13 14:48:05 1992  Torbjorn Granlund  ([email protected])
        !          4995: 
        !          4996:        * hp800.h (REGISTER_NAMES): Name register 112, the shift amount
        !          4997:        register, as "SAR".  It was left out.
        !          4998: 
        !          4999: Fri Mar 13 04:08:53 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          5000: 
        !          5001:        * i386isc.h (STARTFILE_SPEC): Use crt1, not crt0.
        !          5002: 
        !          5003:        * x-i386sco (CC,OLDCC): Don't define `i386' here.
        !          5004:        (RCCFLAGS): Define it here, along with other SCO symbols.
        !          5005:        (XCFLAGS): Use that.  New variable.
        !          5006:        (CLIB): Use -lPW to get alloca.
        !          5007: 
        !          5008: Fri Mar 13 14:11:41 1992  Jeffrey A. Law  ([email protected])
        !          5009: 
        !          5010:        * Changes to enable use of sqrt builtin functions.
        !          5011:        * c-decl.c (init_decl_processing): Enable BUILT_IN_FSQRT for 
        !          5012:        __builtin_sqrt.  Also enable for sqrt if not traditional.
        !          5013:        * cp-decl.c (init_decl_processing): Enable BUILT_IN_FSQRT for
        !          5014:        __builtin_sqrt.
        !          5015:        * expr.c (expand_builtin, case BUILT_IN_FSQRT): New case.  Call
        !          5016:        expand_unop to expand the operation.  If that fails break and
        !          5017:        emit a call to the library sqrt function.
        !          5018:        * optabs.c (init_optabs): Initialize new optabs for sqrt functions.
        !          5019:        * expr.h (sqrt_optab): Declare here so that expr.c can see it.
        !          5020: 
        !          5021: Fri Mar 13 08:56:50 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          5022: 
        !          5023:        * cse.c (delete_dead_from_cse): Fix error in last change.
        !          5024: 
        !          5025:        * a29k.h (PCC_BITFIELD_TYPE_MATTERS): Define as 1.
        !          5026: 
        !          5027:        * reorg.c (fill_slots_from_thread): Add missing arg in call to
        !          5028:        try_split call that was recently added.
        !          5029: 
        !          5030:        * fold-const.c (invert_truthvalue, case COMPOUND_EXPR): New case.
        !          5031: 
        !          5032: Fri Mar 13 01:02:56 1992  Richard Stallman  ([email protected])
        !          5033: 
        !          5034:        * collect2.c (ordinary scan_prog_file): Don't count | in sym name.
        !          5035: 
        !          5036:        * ns32k.md (movsf): Remove #if 0 around #ifndef GAS_SYNTAX.
        !          5037: 
        !          5038:        * pc532.h (GAS_SYNTAX): Defined.
        !          5039: 
        !          5040: Thu Mar 12 00:10:23 1992  Stefan Petri  ([email protected])
        !          5041: 
        !          5042:        * configure (pyramid): Re-enable.
        !          5043: 
        !          5044:        * pyr.h (STRUCTURE_SIZE_BOUNDARY): Restore definition from gcc-1.40.
        !          5045:        (PCC_BITFIELD_TYPE_MATTERS): Define as 1 instead of empty.
        !          5046: 
        !          5047:        * pyr.h (STATIC_CHAIN_INCOMING_REGNUM): Added.
        !          5048: 
        !          5049:        * pyr.h (TRAMPOLINE_TEMPLATE, TRAMPOLINE_SIZE, TRAMPOLINE_ALIGNMENT,
        !          5050:        INITIALIZE_TRAMPOLINE): Added, inspired by convex.h
        !          5051: 
        !          5052:        * pyr.h (INITIAL_FRAME_POINTER_OFFSET): New definition.
        !          5053: 
        !          5054:        * pyr.md (indirect_jump): New pattern.
        !          5055: 
        !          5056:        * libgcc2.c [L_trampoline]: Don't include gstddef.h in this case.
        !          5057:        (__enable_execute_stack): Cloned definition for pyramid
        !          5058:        from that for convex.
        !          5059: 
        !          5060: Thu Mar 12 13:23:05 1992  Richard Stallman  ([email protected])
        !          5061: 
        !          5062:        * collect2.c (FREAD, FWRITE): #undef if USG.
        !          5063: 
        !          5064:        * x-mipsv: New file.
        !          5065:        * configure (mips-*-sysv): Use it.
        !          5066: 
        !          5067:        * cccp.c (skip_to_end_of_comment): New arg NOWARN.  Callers changed.
        !          5068:        (do_xifdef, do_endif): Pass 1 for NOWARN.
        !          5069: 
        !          5070:        * i386.h, hp800.h (ENCODE_SECTION_INFO): Handle CONSTRUCTOR node.
        !          5071:        * i386.h (ENCODE_SECTION_INFO): Only decls can be global.
        !          5072: 
        !          5073:        * cccp.c (warn_import): New variable.
        !          5074:        (do_include): Test that.
        !          5075:        (main): Handle -Wimport.
        !          5076: 
        !          5077:        * hp800hpux.h (DBX_DEBUGGING_INFO): #undef it.
        !          5078:        * x-hp800hpux: New file.
        !          5079:        * configure (hp800-hp-hpux*): Use it.
        !          5080: 
        !          5081:        * config.sub: Make triton alias for sysv3.
        !          5082: 
        !          5083:        * collect2.c: If CROSS_COMPILE, #undef the special OBJECT_FORMAT_*.
        !          5084: 
        !          5085: Thu Mar 12 10:35:50 1992  Ron Guilmette  (rfg at ncd.com)
        !          5086: 
        !          5087:        * gcc.c (default_compilers):  Use .i suffix (instead of .cpp) for all
        !          5088:        preprocessor output files.
        !          5089:        (execute):  Print commands used to invoke passes if -save-temps.
        !          5090: 
        !          5091:        * Makefile.in (mostlyclean): Delete *.i, not *.cpp.
        !          5092:        Don't delete *.co.
        !          5093: 
        !          5094: Thu Mar 12 07:13:33 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          5095: 
        !          5096:        * xcoff.h (DBX_FINISH_SYMBOL): When writing function name, strip off
        !          5097:        any storage class at the end.
        !          5098: 
        !          5099: Thu Mar 12 05:16:49 1992  Tom Wood  ([email protected])
        !          5100: 
        !          5101:        * config.sub (-triton*): Delete this OS (it's sysv3).
        !          5102:        * configure (m88k-dolphin-sysv3): Rename alternative.
        !          5103:        * xm-m88kdolph.h: Delete.  Use xm-m88kv3.h instead.
        !          5104:        * x-m88kdolph: New file.
        !          5105:        
        !          5106: Thu Mar 12 00:19:14 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          5107: 
        !          5108:        * i386.md (movstrsi recognizers): Fix reversed operands.
        !          5109: 
        !          5110: Thu Mar 12 00:01:11 1992  Richard Stallman  ([email protected])
        !          5111: 
        !          5112:        * gcc.c (main):
        !          5113:        Don't require machine_suffix for md_startfile_prefix or md_exec_prefix.
        !          5114: 
        !          5115:        * toplev.c (main): Force flag_no_inline if not optimizing.
        !          5116: 
        !          5117:        * dbxout.c (dbxout_type): Ignored names don't count in case UNION_TYPE.
        !          5118: 
        !          5119:        * cp-decl.c (pushtag): Push on ->tags and make TYPE_STUB_DECL
        !          5120:        even if type has no tag name.
        !          5121:        * cp-class.c (finish_struct): Always call rest_of_type_compilation.
        !          5122: 
        !          5123:        * cse.c (simplify_unary_operation): For SQRT, do nothing.
        !          5124: 
        !          5125:        * byteorder.h: Test __i860_big_endian__.
        !          5126: 
        !          5127:        * ns32k.c (print_operand_address): Test NO_ABSOLUTE_PREFIX_IF_SYMBOLIC.
        !          5128:        Test BASE_REG_NEEDED inside indirect address too.
        !          5129:        * sequent.h (NO_ABSOLUTE_PREFIX_IF_SYMBOLIC): Defined.
        !          5130:        (SEQUENT_ADDRESS_BUG, SEQUENT_BASE_REGS): #if 0.
        !          5131: 
        !          5132: Wed Mar 11 22:55:38 1992  Richard Stallman  ([email protected])
        !          5133: 
        !          5134:        * c-decl.c (push_parm_decl): Clear immediate_size_expand temporarily.
        !          5135:        * stor-layout.c (get_pending_sizes): Fix up SAVE_EXPR_CONTEXT.
        !          5136:        (variable_size): No longer static.
        !          5137:        * c-decl.c (grokdeclarator): Call variable_size, not save_expr.
        !          5138:        Rename local `variable_size' to `size_varies'.
        !          5139: 
        !          5140: Wed Mar 11 18:53:23 1992  Chip Salzenberg  ([email protected])
        !          5141: 
        !          5142:        * collect2.c (OBJECT_FORMAT_COFF, OBJECT_FORMAT_ROSE):
        !          5143:        (OBJECT_FORMAT_NONE): Three alternative strategies for finding inits.
        !          5144:        OBJECT_FORMAT_COFF is completely new.
        !          5145:        (is_ctor_dtor): New function.
        !          5146:        [OBJECT_FORMAT_NONE, OBJECT_FORMAT_ROSE] (scan_prog_file):
        !          5147:        Use is_ctor_dtor.
        !          5148: 
        !          5149:        * x-rs6000 (CLIB): Add -lld.
        !          5150:        * t-rs6000: New file.
        !          5151:        * configure (rs6000...): Use that file.
        !          5152: 
        !          5153: Wed Mar 11 17:31:13 1992  Torbjorn Granlund  ([email protected])
        !          5154: 
        !          5155:        * reload1.c (inc_for_reload): Call gen_add2_insn with negated
        !          5156:        constant instead of gen_sub2_insn.
        !          5157: 
        !          5158: Wed Mar 11 17:30:35 1992  Richard Stallman  ([email protected])
        !          5159: 
        !          5160:        * c-typeck.c (build_binary_op): For shifts, always use op0 type.
        !          5161: 
        !          5162:        * stmt.c (expand_end_bindings):
        !          5163:        Load virtual_incoming_args_rtx via a pseudo reg.
        !          5164: 
        !          5165:        * math-68881 (pow): Add missing parens; typo in fp constant.
        !          5166: 
        !          5167:        * i386isc.h (LIB_SPEC): Add -lg.
        !          5168: 
        !          5169:        * libgcc2.c (__CTOR_LIST__, __DTOR_LIST__):
        !          5170:        Don't define if CTOR_LISTS_DEFINED_EXTERNALLY.
        !          5171:        (__builtin_saveregs): Handle NO_UNDERSCORES for sparc.
        !          5172: 
        !          5173:        * pbb.h, pbd.h: New files from Mike Bloom.
        !          5174:        * configure (m68k-tti2-*): Turned back on.
        !          5175: 
        !          5176:        * c++: Add a colon command in case system doesn't handle #!/bin/sh.
        !          5177: 
        !          5178: Mon Mar 11 19:54:43 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          5179: 
        !          5180:        * i386.md (integer truncMN2): Delete patterns.  Not needed on i386.
        !          5181: 
        !          5182: Wed Mar 11 16:58:56 1992  Tom Wood  ([email protected])
        !          5183: 
        !          5184:        * m88kv3.h (STARTFILE_SPEC, LIB_SPEC): Search for crt{begin,end}.o
        !          5185:        (DO_GLOBAL_CTORS_BODY, CTORS_SECTION_ASM_OP, ASM_OUTPUT_CONSTRUCTOR,
        !          5186:        DTORS_SECTION_ASM_OP): Implement new svr3 scheme.
        !          5187: 
        !          5188: Wed Mar 11 16:24:03 1992  Richard Stallman  ([email protected])
        !          5189: 
        !          5190:        * fold-const.c (fold): When correcting constant result of GE, LE, NE,
        !          5191:        make sure we really have a constant result.
        !          5192: 
        !          5193:        * ns32k.md (call, call_value): Support GAS_SYNTAX and GNX_V3 like 1.40.
        !          5194: 
        !          5195:        * c-decl.c (pushdecl): Properly use prev implicit decl in warning.
        !          5196: 
        !          5197: Wed Mar 11 16:05:20 1992  Jim Wilson  ([email protected])
        !          5198: 
        !          5199:        * Makefile.in (OBJS): Add xcoffout.o.
        !          5200:        (dbxout.o, final.o, toplev.o, varasm.o): Add xcoff.h dependency.
        !          5201:        (xcoffout.o): Add rule to build.
        !          5202: 
        !          5203:        * xcoffout.c: Change names of rs6000_*_section_name variables to
        !          5204:        xcoff_*_section_name, and move definitions of them here from
        !          5205:        rs6000.c.
        !          5206:        * xcoff.h: Likewise, move declarations here from rs6000.h.
        !          5207:        * rs6000.c: Delete definitions of rs6000_*_section_name variables.
        !          5208:        * rs6000.h: Delete declarations of rs6000_*_section_name variables.
        !          5209: 
        !          5210:        * rs6000.c (output_epilog): Add comment to note lack of traceback
        !          5211:        table support.
        !          5212:        * rs6000.h: Refine comment explaining ASM_SPEC definition.
        !          5213:        (XCOFF_DEBUGGING_INFO): Define.
        !          5214:        (DBX_CONTIN_LENGTH, DBX_NO_XREFS): Move to xcoff.h.
        !          5215:        (ASM_FILE_START): When -g, emit private_data_section.
        !          5216:        (ASM_DECLARE_FUNCTION_NAME): When -g, output .lglobl for static
        !          5217:        functions.  Also, output .function debug info.
        !          5218:        (ASM_OUTPUT_COMMON, ASM_OUTPUT_LOCAL): Add bss_section call.
        !          5219:        
        !          5220:        * dbxout.c: Include xcoff.h when XCOFF_DEBUGGING_INFO is defined.
        !          5221:        Define default values for DBX_DECL_STABS_CODE,
        !          5222:        DBX_STATIC_CONST_VAR_CODE, DBX_REGPARM_STABS_CODE, and
        !          5223:        DBX_REGPARM_STABS_LETTER.  These exist to be overriden for xcoff.
        !          5224:        Include entire file if either DBX_DEBUGGING_INFO or
        !          5225:        XCOFF_DEBUGGING_INFO is defined.
        !          5226:        (dbxout_type): Add early exit if DBX_TYPE_DEFINED, used for xcoff.
        !          5227:        (dbxout_symbol): Use DBX_DECL_STABS_CODE instead of N_LSYM for
        !          5228:        tags and typedefs.  Use DBX_STATIC_CONST_VAR_CODE instead of N_FUN
        !          5229:        for static const variables.  Add DBX_STATIC_BLOCK_START and
        !          5230:        DBX_STATIC_BLOCK_END around output of stab info, for xcoff use.
        !          5231:        (dbxout_finish_symbol): Use DBX_FINISH_SYMBOL instead if defined.
        !          5232:        (dbxout_syms, dbxout_parms): No longer static, referenced from
        !          5233:        xcoffout.c.
        !          5234:        (dbxout_parms): Use DBX_REGPARM_STABS_CODE instead of N_RSYM.  Use
        !          5235:        DBX_REGPARM_STABS_LETTER instead of 'P'.
        !          5236:        (dbxout_reg_parms): No longer static.
        !          5237:        * final.c: Also include gstab.h if XCOFF_DEBUGGING_INFO defined.
        !          5238:        Include xcoff.h if XCOFF_DEBUGGING_INFO defined.
        !          5239:        (final_start_function): Call xcoffout_output_first_source_line
        !          5240:        when XCOFF_DEBUG.  Set next_block_index if XCOFF_DEBUG.
        !          5241:        (final_end_function): Call xcoffout_end_function if XCOFF_DEBUG.
        !          5242:        Call xcoff_end_epilogue if XCOFF_DEBUG.
        !          5243:        (final_scan_insn): Call xcoffout_begin_function,
        !          5244:        xcoffout_begin_block, and xcoffout_end_block if XCOFF_DEBUG.
        !          5245:        (output_source_line): Also call dbxout_source_file if XCOFF_DEBUG.
        !          5246:        * flags.h: Define XCOFF_DEBUG.  Also declare
        !          5247:        use_gdb_dbx_extensions if XCOFF_DEBUGGING_INFO.
        !          5248:        * toplev.c: Also declare use_gdb_dbx_extensions if
        !          5249:        XCOFF_DEBUGGING_INFO.  Include xcoff.h in XCOFF_DEBUGGING_INFO.
        !          5250:        (compile_file): Also call dbxout_init, and dbxout_finish if
        !          5251:        XCOFF_DEBUG.
        !          5252:        (rest_of_decl_compilation): Also call dbxout_symbol if
        !          5253:        XCOFF_DEBUG.
        !          5254:        (rest_of_type_compilation): Also call dbxout_symbol if
        !          5255:        XCOFF_DEBUG.
        !          5256:        (main): Add support for recognizing -g when XCOFF_DEBUGGING_INFO.
        !          5257:        * varasm.c: Include xcoff.h if XCOFF_DEBUGGING_INFO.
        !          5258:        (assemble_variable): Also call dbxout_symbol when XCOFF_DEBUG.
        !          5259:        Change all returns to goto finish.  At finish label,
        !          5260:        call dbxout_symbol if XCOFF_DEBUG.
        !          5261: 
        !          5262:        * dbxstclass.h: New file.  Define XCOFF specific storage classes.
        !          5263:        * xcoff.h: New file, for XCOFF support.  Included by xcoffout.c,
        !          5264:        dbxout.c, final.c, toplev.c, and varasm.c.
        !          5265:        * xcoffout.c: New file for XCOFF support.  Most of the support is
        !          5266:        implemented by dbxout.c, this just includes stuff that can not be
        !          5267:        easily performed within dbxout.c.
        !          5268: 
        !          5269:        * toplev.c (struct W_options): Add entry for warn_inline, so user
        !          5270:        can turn this warning on.
        !          5271: 
        !          5272: Wed Mar 11 15:11:42 1992  Torbjorn Granlund  ([email protected])
        !          5273: 
        !          5274:        * optabs.c (init_optabs): Fix typo (Imode instead of TImode) in
        !          5275:        HAVE_subti3 case.
        !          5276: 
        !          5277: Wed Mar 11 13:10:20 1992  Jeffrey A. Law  ([email protected])
        !          5278: 
        !          5279:        * sparc.h (REG_ALLOC_ORDER): Make %g3 more desirable.
        !          5280: 
        !          5281: Wed Mar 11 12:35:12 1992  Richard Stallman  ([email protected])
        !          5282: 
        !          5283:        * fixincludes (egrep cmd): Delete misplaced `#e[nl]'.
        !          5284: 
        !          5285:        * jump.c (jump_optimize): Try to fix last change.
        !          5286: 
        !          5287:        * expmed.c (init_expmed): Use big, ugly factor in mult_is_very_cheap.
        !          5288: 
        !          5289: Wed Mar 11 08:00:18 1992  Tom Wood  ([email protected])
        !          5290: 
        !          5291:        * toplev.c (rest_of_compilation): Use sdbout_types to clear the
        !          5292:        anonymous types queue if any.
        !          5293:        * sdbout.c: Correct spelling of sdbout_dequeue_anonymous_types.
        !          5294: 
        !          5295:        * genattrtab.c (attr_string): Don't assume a terminating null.
        !          5296: 
        !          5297: Wed Mar 11 07:05:38 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          5298: 
        !          5299:        * reload1.c (reload_as_needed): Delete erroneous test of
        !          5300:        basic_block_needs.
        !          5301: 
        !          5302:        * stmt.c (expand_end_case): Know that we will obtain a constant
        !          5303:        if we were passed a COMPOUND_EXPR whose second operand is constant.
        !          5304:        Fold the MINUS_EXPR we make for casesi.
        !          5305: 
        !          5306:        * reorg.c (update_block_from_store): Deleted.
        !          5307:        (update_block): Always leave USE; don't try to update live regs.
        !          5308: 
        !          5309:        * explow.c (copy_to_suggested_reg): Add new arg for mode to use.
        !          5310:        * expmed.c (expand_divmod): Pass new arg to copy_to_suggested_reg.
        !          5311: 
        !          5312:        * reload1.c (set_label_offsets, reload_as_needed): Consistently
        !          5313:        ignore non-eliminables when computing num_not_at_initial_offset.
        !          5314: 
        !          5315:        * rs6000.md (subsi3): Remove unnecessary call to force_reg.
        !          5316: 
        !          5317:        * rs6000.c (output_epilog): Separate setting LR from loading
        !          5318:        it from memory in some cases.
        !          5319:        Branch to FP restore routine instead of calling it.
        !          5320: 
        !          5321:        * flow.c (propagate_block): CC0 is not live when we delete a dead
        !          5322:        insn.
        !          5323:        * cse.c (delete_dead_from_cse): An insn setting CC0 is not live
        !          5324:        if the next insn doesn't reference CC0.
        !          5325: 
        !          5326:        * cse.c (cse_insn): If we see a narrow AND with a constant, check if
        !          5327:        we have seen a wider AND.
        !          5328: 
        !          5329:        * combine.c (can_combine_p): Allow SUBREG of non-tiable regs if we
        !          5330:        are going to do is copy it to CC0.
        !          5331: 
        !          5332:        * reload.c (find_secondary_reload): If X is a pseudo with an
        !          5333:        equivalent MEM, use the MEM to see if a secondary reload is needed.
        !          5334:        Don't call REG_CLASS_FROM_LETTER for 'r'.
        !          5335:        * reload1.c (emit_reload_insns): Handle reloading pseudos
        !          5336:        with equivalent MEM when we have secondary reloads; use the MEM
        !          5337:        when required.
        !          5338: 
        !          5339:        * romp.md (reload_outsi): Pattern should be a single PARALLEL
        !          5340:        whose second component is a CLOBBER.
        !          5341: 
        !          5342: Wed Mar 11 03:11:26 1992  Richard Stallman  ([email protected])
        !          5343: 
        !          5344:        * gcc.c (find_a_file, do_spec_1): Always obey require_machine_suffix.
        !          5345:        (machine_explicit): Var deleted.
        !          5346: 
        !          5347: Tue Mar 10 23:12:24 1992  Jeffrey A. Law  ([email protected])
        !          5348: 
        !          5349:        * m68k.md (68000 special shifts): No longer accept a shift count 
        !          5350:        of 16.  Delete support for shifts by 16 places.
        !          5351:        (shift by 16 bits): New patterns which apply to all 68k models.
        !          5352:        * m68k.h (RTX_COSTS): Shifts by 16 are cheap.
        !          5353: 
        !          5354: Tue Mar 10 20:37:31 1992  Richard Stallman  ([email protected])
        !          5355: 
        !          5356:        * dwarfout.c (location_or_const_value_attribute):
        !          5357:        Reenable changes disabled on Feb 21.
        !          5358:        * function.c (instantiate_decls): Likewise.
        !          5359: 
        !          5360:        * sdbout.c (sdbout_symbol): Handle (mem (const...)).
        !          5361:        * dbxout.c (dbxout_symbol): Likewise.
        !          5362: 
        !          5363:        * xm-i386isc.h: New file.
        !          5364:        * configure (i386-*-isc*): Use it.
        !          5365: 
        !          5366:        * hp320.h (MD_STARTFILE_PREFIX): Deleted.
        !          5367: 
        !          5368:        * m68k.h (RTX_COSTS): If MULT is a shift, jump to shift case.
        !          5369: 
        !          5370:        * sun3.h (TARGET_MEM_FUNCTIONS): Defined.
        !          5371: 
        !          5372:        * toplev.c (rest_of_compilation): Call sdbout_dequeue_anonymous_types
        !          5373:        even if we don't output assembler code.
        !          5374: 
        !          5375:        * jump.c (jump_optimize): In `if (foo) bar; else break;' optimization,
        !          5376:        include in range1 and range2 any line numbers at the beginning.
        !          5377: 
        !          5378:        * c-typeck.c (spelling_length): Initialize `size'.
        !          5379:        (PUSH_SPELLING): `spelling_size' is measured in elements.
        !          5380:        (get_spelling): Use xmalloc if there is no buffer yet.
        !          5381: 
        !          5382: Tue Mar 10 20:25:56 1992  Jim Wilson  ([email protected])
        !          5383: 
        !          5384:        * integrate.c (save_for_inline_copying):
        !          5385:        Set up LABEL_NAME of label copies.
        !          5386: 
        !          5387:        * sparc.md: Clean up attribute settings.  Add default length of 2
        !          5388:        for insns of type multi.  Make sure all insns have correct type and
        !          5389:        length attribute values.
        !          5390: 
        !          5391: Tue Mar 10 19:13:19 1992  Richard Stallman  ([email protected])
        !          5392: 
        !          5393:        * c-decl.c (warn_parentheses): Default is 0.
        !          5394:        (c_decode_option): -Wall implies -Wparentheses.
        !          5395: 
        !          5396: Tue Mar 10 17:49:51 1992  Torbjorn Granlund  (tege at mole.gnu.ai.mit.edu)
        !          5397: 
        !          5398:        * hp800.md (shNadd recognizers): Put the MULT first, to obey insn
        !          5399:        canonicalization rules.
        !          5400: 
        !          5401:        * hp800.md (subsi3): Don't handle constants for operand 2, but
        !          5402:        do handle them for operand 1, for the subi insn.
        !          5403: 
        !          5404:        * hp800.md (compare into ordinary reg): Use "arith11_operand", not
        !          5405:        "arith_operand" for operand 2.  Use `I', not `J' as constraint.
        !          5406:        Don't change the constant in the output code (i.e. undo Mar 10
        !          5407:        change).
        !          5408:        * hp800.c (arith11_operand): New predicate function.  Fix comment.
        !          5409: 
        !          5410:        hp800.md (mulsi3): Don't handle CONST_INT specifically, rely on
        !          5411:        machine independent code.
        !          5412:        * hp800.h (RTX_COST): Define.
        !          5413:        * hp800.c (ABS, mul_operands, emit_mul_by_constant) Remove.
        !          5414:        (mul_by_constant_aux, test_factor_and_output): Remove.
        !          5415: 
        !          5416:        * hp800.md (addsi3): Use "register_operand" for operand 1, not
        !          5417:        "arith_operand".
        !          5418: 
        !          5419:        * hp800.md: Clean up spacing and comments in a few places.
        !          5420: 
        !          5421:        * hp800.c (output_move_double): Handle auto increment and auto
        !          5422:        decrement.  Remove unused enums.  Test for either operand being a
        !          5423:        REGOP instead if RNDOP, since we require at least one operand to
        !          5424:        be a register.  Pass the MEM address to find_addr_reg, not the
        !          5425:        entire MEM rtx (in two places).
        !          5426: 
        !          5427:        * hp800.h (WORDS_BIG_ENDIAN): Fix typo in comment.
        !          5428:        (RTX_COST): Return cost of a PLUS, to indirectly give the right
        !          5429:        cost for the shNadd insns.  Adjust the cost for division.
        !          5430: 
        !          5431: Tue Mar 10 15:57:24 1992  Jim Wilson  ([email protected])
        !          5432: 
        !          5433:        * sparc.md: Add pattern for optimizing bitfield compares.  This
        !          5434:        pattern was accidently lost when other (now-obsolete) bitfield
        !          5435:        patterns were removed.
        !          5436: 
        !          5437:        * sparc.c (arith32_operand): Deleted.
        !          5438:        * sparc.md (movstrsi): Now uses nonmemory_operand for length.
        !          5439: 
        !          5440:        * sparc.c (output_arc_profiler): Emit insns from first to last
        !          5441:        instead of last to first, since it is much clearer.  Eliminate
        !          5442:        profiler_target, since it resulted in illegal rtx sharing.
        !          5443: 
        !          5444:        * sparc.c (legitimize_pic_address): Make -fPIC work again, re the
        !          5445:        Feb 27 cse.c LO_SUM fix.  Put addresses inside UNSPEC when loading
        !          5446:        them to ensure that cse won't mistakenly optimize them.
        !          5447:        * sparc.md: Two new patterns, to match (HIGH (UNSPEC (..))) and
        !          5448:        (LO_SUM (reg) (UNSPEC (..))) as generated above.
        !          5449: 
        !          5450: Tue Mar 10 14:58:19 1992  Richard Stallman  ([email protected])
        !          5451: 
        !          5452:        * mips-news.h (ASM_SPEC): Move %{G*} outside of -mgas conditional.
        !          5453:        * nws3250v4.h, xm-nws3250v4.h, x-nws3250v4: New files.  From cph.
        !          5454: 
        !          5455:        * i860.c (sfmode_constant_to_ulong): Fix typo in last change.
        !          5456: 
        !          5457:        * expr.c (store_expr): Initialize `label'.
        !          5458: 
        !          5459:        * 3b1.h (HAVE_ATEXIT): #undef this.
        !          5460: 
        !          5461:        * hp800.md (compare into ordinary reg): Make large ints "negative".
        !          5462: 
        !          5463:        * hp800hpux.h: New file.
        !          5464:        * configure (hp800-*-bsd*): Renamed from hp800-*-*.
        !          5465:        (hp800-*-hpux*): New configuration.
        !          5466: 
        !          5467: Tue Mar 10 11:03:47 1992  Torbjorn Granlund  ([email protected])
        !          5468: 
        !          5469:        * expmed.c (init_expmed): Make the lea pattern in the canonical way.
        !          5470: 
        !          5471: Tue Mar 10 10:32:30 1992  Tom Wood  (wood@hal)
        !          5472: 
        !          5473:        * m88k.h (ASM_OUTPUT_{COMMON,LOCAL}): Compute size consistently.
        !          5474: 
        !          5475: Tue Mar 10 07:41:09 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          5476: 
        !          5477:        * recog.c (constrain_operands, case 'E'): Fix typo.
        !          5478: 
        !          5479:        * function.c (setjmp_protect): Don't put vars from inline functions
        !          5480:        on the stack.
        !          5481: 
        !          5482:        * c-typeck.c (process_init_constructor): Don't use host integers for
        !          5483:        bounds and index computation; use trees instead.
        !          5484:        If specifying index in array with unset bounds, assume lower bound
        !          5485:        of zero and check specified index against zero.
        !          5486: 
        !          5487:        * tree.h (mode_for_size): Don't declare here.
        !          5488:        * machmode.h (mode_for_size): Declare here instead.
        !          5489: 
        !          5490:        * reorg.c (fill_slots_from_thread): Try to split THREAD immediately
        !          5491:        so we don't get confused if it gets split later.
        !          5492: 
        !          5493:        * reorg.c (fill_slots_from_thread): Don't take add from loop
        !          5494:        head if the increment amount depends on the target register, since
        !          5495:        we can't undo the operation.
        !          5496: 
        !          5497: Mon Mar  9 12:18:04 1992  Jim Wilson  ([email protected])
        !          5498: 
        !          5499:        * unroll.c (final_biv_value): Fail if the biv is not MODE_INT.
        !          5500: 
        !          5501:        * combine.c (distribute_notes, case REG_DEAD): Call rtx_equal_p
        !          5502:        to verify that it was the set that modified the register, and
        !          5503:        not a clobber.
        !          5504: 
        !          5505: Sun Mar  8 22:20:24 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          5506: 
        !          5507:        * c-parse.y,c-lex.c,cp-hash.h,cp-parse.y,cp-spew.c,objc-parse.y:
        !          5508:        Rename `ASM' to `ASM_KEYWORD' to avoid trouble with SCO
        !          5509:        <sys/signal.h>.
        !          5510: 
        !          5511: Sun Mar  8 23:16:37 1992  Jeffrey A. Law  ([email protected])
        !          5512: 
        !          5513:        * expr.c (move_by_pieces, move_by_pieces_ninsns): Remove March 4 and
        !          5514:        March 5 changes.  Set max_size to MOVE_MAX + 1 instead.
        !          5515: 
        !          5516: Sun Mar  8 17:08:57 1992  Richard Stallman  ([email protected])
        !          5517: 
        !          5518:        * expr.c (do_tablejump): New arg MODE.
        !          5519:        * stmt.c (expand_end_case): Pass that arg.
        !          5520: 
        !          5521:        * c-decl.c (pushtag): Push even anonymous types on tags list.
        !          5522:        (parmlist_tags_warning): Handle anonymous types in the list.
        !          5523: 
        !          5524: Sun Mar  8 15:08:58 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          5525: 
        !          5526:        * i386mach.h (perform_fixdfsi): Rename from *_fix_trundfsi2.
        !          5527:        Restore float control word correctly.
        !          5528:        * i386rose.h (perform_fixdfsi): Likewise.
        !          5529: 
        !          5530:        * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Allow float constants,
        !          5531:        even if -msoft-float is used: reg-stack.c may emit an insn to load
        !          5532:        the function value register with 0.0.
        !          5533: 
        !          5534:        * i386.md (bit test insns): Don't allow memory operands as the
        !          5535:        first argument of the zero_extract.
        !          5536: 
        !          5537:        * i386isc.h (RETURN_POPS_ARGS): Comment this out: ISC uses the
        !          5538:        standard definition.
        !          5539: 
        !          5540:        * i386sco.h (STARTFILE_SPEC): Use crtbegin.o.
        !          5541:        (ENDFILE_SPEC): Use crtend.o.
        !          5542:        (CPP_SPEC): #undef before defining.
        !          5543:        (RETURN_POPS_ARGS): Caller pops args on SCO.
        !          5544: 
        !          5545: Sun Mar  8 14:25:16 1992  Richard Stallman  ([email protected])
        !          5546: 
        !          5547:        * configure: Fatal error if srcdir has already been configured.
        !          5548:        Remove periods from error messages.
        !          5549: 
        !          5550:        * 3b1.h, mot3300.h (ASM_OUTPUT_OPCODE): Change swap to swap.w.
        !          5551:        (SGS_SWAP_W): Deleted.
        !          5552:        * m68ksgs.h (ASM_OUTPUT_OPCODE): If SGS_SWAP_W, change swap to swap.w.
        !          5553:        * m68k.md: Delete all SGS_SWAP_W conditionals.
        !          5554: 
        !          5555:        * m68k.md (shift using swap, dbra patterns): Change clrw to clr%.w.
        !          5556: 
        !          5557:        * hp800.h (output_global_address): Use `-' for PLUS of neg integer.
        !          5558:        Clean up spacing and braces in several places in file.
        !          5559: 
        !          5560:        * byteorder.h (htons): Use unsigned int for arg type.
        !          5561: 
        !          5562: Sun Mar  8 07:36:44 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          5563: 
        !          5564:        * rs6000.c (print_operand, case 'A'): New case.
        !          5565:        * rs6000.md (sri): New %A to use "sli" for count of zero to work
        !          5566:        around bug in RS/6000 assembler.
        !          5567: 
        !          5568:        * config.sub (os): Add "aos" to basic list, no longer the same
        !          5569:        as "bsd";  "acis" is an alternate for "aos".
        !          5570:        (romp): No longer has a default system.
        !          5571:        * configure (romp-*-aos*): Renamed from romp-*-bsd*; BSD means 
        !          5572:        real BSD (4.3 Tahoe+), AOS means IBM system.
        !          5573: 
        !          5574:        * Makefile.in (crtbegin.o, crtend.o): Use -o for output instead of
        !          5575:        putting in crtstuff.o and renaming to desired name.
        !          5576: 
        !          5577:        * reload1.c (reload): Re-check eliminability of registers on each
        !          5578:        reload pass.
        !          5579: 
        !          5580:        * jump.c (mark_jump_label): Make multiple REG_LABEL notes if
        !          5581:        more than one label is mentioned in an insn.
        !          5582: 
        !          5583:        * integrate.c (copy_rtx_and_substitute): Properly initialize
        !          5584:        const_equiv_map for the equivalents of AP and FP.
        !          5585: 
        !          5586:        * rs6000.h (TARGET_MEM_FUNCTION): Define.
        !          5587: 
        !          5588: Sun Mar  8 00:05:47 1992  Richard Stallman  ([email protected])
        !          5589: 
        !          5590:        * c-decl.c (store_parm_decls): Copy function type before changing it.
        !          5591:        * tree.c (build_type_copy): New subroutine.
        !          5592: 
        !          5593:        * t-next (LIBGCC1): Assigned, instead of LIBGCC.
        !          5594: 
        !          5595:        * m68k.h (SHIFT_COUNT_TRUNCATED): Deleted.
        !          5596: 
        !          5597: Sat Mar  7 23:47:57 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          5598: 
        !          5599:        * i386.md (xorsi3,xorhi3): Don't emit a byte opcode with an SImode
        !          5600:        operand.
        !          5601: 
        !          5602: Sat Mar  7 22:49:21 1992  Richard Stallman  ([email protected])
        !          5603: 
        !          5604:        * c-typeck.c (convert_arguments): -Wconversion warning
        !          5605:        if argument is passed as float.
        !          5606:        For fixed arguments, warn if type passed doesn't match
        !          5607:        what default_conversion produces.
        !          5608: 
        !          5609:        * gcc.c (cross_compile): New variable, 1 if cross-compiling.
        !          5610:        (read_specs): Read it from specs.
        !          5611:        (process_command): Dump it to specs.
        !          5612: 
        !          5613:        * gcc.c (process_command): Don't use MD prefixes and
        !          5614:        standard_startfile_prefix* here.
        !          5615:        (main): Use them here, if not cross-compiling.
        !          5616: 
        !          5617: Sat Mar  7 18:13:45 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          5618: 
        !          5619:        * reload1.c (reload_as_needed): Eliminate regs in (use (mem ..))
        !          5620:        and (clobber (mem ...)) insns.
        !          5621: 
        !          5622:        * combine.c (distribute_notes): Fix minor bug in handling of
        !          5623:        multi-register values when only one part is used.
        !          5624: 
        !          5625:        * optabs.c, expr.c: Always call emit_library_call with no_queue == 1.
        !          5626: 
        !          5627:        * function.c (fix_lexical_addr): Correctly set BASE in non-separate
        !          5628:        AP case.
        !          5629: 
        !          5630: Sat Mar  7 15:39:57 1992  Jyrki Kuoppala  ([email protected])
        !          5631: 
        !          5632:        * ns32k.h (TRANSFER_FROM_TRAMPOLINE): changed "ret" to "ret 0"
        !          5633: 
        !          5634: Sat Mar  7 15:41:46 1992  David J. MacKenzie  ([email protected])
        !          5635: 
        !          5636:        * fixincludes: Don't do special fixes on signal.h, which were only
        !          5637:        needed because of #endif comment fixes.
        !          5638: 
        !          5639: Sat Mar  7 15:11:50 1992  Richard Stallman  ([email protected])
        !          5640: 
        !          5641:        * m68k.h (ASM_OUTPUT_ALIGN): Don't crash if LOG is more than 1.
        !          5642: 
        !          5643:        * varasm.c (decode_reg_name): Make various prefixes optional
        !          5644:        whether or not they are in REGISTER_NAMES.
        !          5645:        (strip_reg_name): New subroutine.
        !          5646: 
        !          5647:        * i386.c: Fatal error if EXTRA_CONSTRAINT is defined.
        !          5648: 
        !          5649:        * collect2.c [USG] (R_OK, W_OK, X_OK): Define them if missing.
        !          5650: 
        !          5651:        * x-hp320g (RANLIB, RANLIB_TEST): Defined.
        !          5652: 
        !          5653:        * Makefile.in (EXTRA_PROGRAMS): New variable is list of programs.
        !          5654:        (native): Build them.  Don't build EXTRA_PARTS.
        !          5655:        (rest.encap): Build EXTRA_PARTS.
        !          5656:        (GCC_PARTS): Include EXTRA_PROGRAMS.
        !          5657:        (install-common): Build EXTRA_PROGRAMS.
        !          5658:        * t-convex (EXTRA_PROGRAMS): Define instead of EXTRA_PARTS.
        !          5659: 
        !          5660:        * Makefile.in (distclean): Don't delete backups, etc.
        !          5661:        (extraclean): New target--delete those things here.
        !          5662:        (gcc.xtar): Use extraclean.
        !          5663:        (cleanconfig): Deleted.
        !          5664:        (realclean): Depend on distclean.
        !          5665: 
        !          5666: Sat Mar  7 14:54:29 1992  Tom Wood  ([email protected])
        !          5667: 
        !          5668:        * genattrtab (attr_printf): Provide alternate based on HAVE_VPRINTF.
        !          5669: 
        !          5670: Sat Mar  7 14:25:58 1992  Torbjorn Granlund  ([email protected])
        !          5671: 
        !          5672:        * hp800.c (secondary_reload_class): Change `=' to `==' in `if'.
        !          5673: 
        !          5674: Sat Mar  7 13:25:17 1992  Richard Stallman  ([email protected])
        !          5675: 
        !          5676:        * cccp.c (do_line): Fix typo.
        !          5677: 
        !          5678:        * configure (decoding args): Delete excess fi.
        !          5679: 
        !          5680: Sat Mar  7 09:29:41 1992  Michael Meissner  ([email protected])
        !          5681: 
        !          5682:        * mips.h (CONST_COSTS): Complete last change.
        !          5683: 
        !          5684:        * mips.md (movsi_ulw, movsi_usw): Complete last change.
        !          5685: 
        !          5686: Sat Mar  7 07:28:03 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          5687: 
        !          5688:        * config.sub (*-dolphin, -triton*): New vendor/OS.
        !          5689:        * configure (m88k-dolphin-trition): New alternative.
        !          5690:        * m88kdolph.h: New file.
        !          5691:        * xm-m88kdolph.h: New file.
        !          5692: 
        !          5693: Sat Mar  7 10:07:44 1992    (Eric Youngdale at [email protected])
        !          5694: 
        !          5695:        * make-l2.com: Do not allow the user to run this with gcc 1.nn.
        !          5696: 
        !          5697:        * make-gcc.com: Use the new compiler to build libgcc2.c (through 
        !          5698:          make-l2.com).
        !          5699: 
        !          5700: Sat Mar  7 05:36:16 1992  K. Richard Pixley  ([email protected])
        !          5701: 
        !          5702:        * Makefile.in: added the exec_prefix variable for installing host
        !          5703:          dependent programs and libraries.
        !          5704: 
        !          5705: Sat Mar  7 00:09:50 1992  Richard Stallman  ([email protected])
        !          5706: 
        !          5707:        * genextract.c (mybzero): New fn.  Used instead of bzero.
        !          5708: 
        !          5709:        * Makefile.in (all): Indirect to all-internal.
        !          5710:        (all-internal): New rule, following where cross-make gets inserted.
        !          5711: 
        !          5712:        * vms.h (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE): Defined.
        !          5713: 
        !          5714:        * protoize.c: Don't declare fork or vfork.
        !          5715: 
        !          5716:        * i860.c (sfmode_constant_to_ulong): Use REAL_VALUE_FROM_CONST_DOUBLE.
        !          5717: 
        !          5718:        * gcc.c (handle_braces): Verify actual suffix length matches
        !          5719:        desired.
        !          5720: 
        !          5721:        * hp800.h (GO_IF_LEGITIMATE_ADDRESS): Add parens for clarity.
        !          5722: 
        !          5723:        * c-typeck.c (pointer_int_sum): Handle intop which is sum or diff
        !          5724:        of arguments with different types.
        !          5725: 
        !          5726:        * c-typeck.c (PUSH_SPELLING): If no buffer yet, use xmalloc.
        !          5727: 
        !          5728:        * m68k.c (output_dbcc_and_branch): Use \n\t between pair of insns.
        !          5729: 
        !          5730:        * sparc.h (TARGET_MEM_FUNCTIONS): Defined.
        !          5731: 
        !          5732: Fri Mar  6 18:48:03 1992  Richard Stallman  ([email protected])
        !          5733: 
        !          5734:        * gbl-ctors.h (DO_GLOBAL_CTORS_BODY): Don't call ON_EXIT here.
        !          5735:        * crtstuff.c, libgcc2.c (__do_global_ctors): Call it here.
        !          5736: 
        !          5737:        * i386sco.h (HAVE_ATEXIT): Defined.
        !          5738: 
        !          5739:        * collect2.c (my_exit, main): Avoid dereferencing 0.
        !          5740: 
        !          5741:        * stmt.c (expand_decl_init): Don't alter TREE_USED of the variable.
        !          5742: 
        !          5743: Fri Mar  6 18:24:39 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          5744: 
        !          5745:        * mot3300.h (SIZE_TYPE): Define as "unsigned int".
        !          5746: 
        !          5747:        * combine.c (make_extraction): STRICT_ALIGNMENT is now non-zero if
        !          5748:        true, instead of relying on whether it is defined or not.
        !          5749:        * c-typeck.c, cp-typeck.c (build_c_cast): Likewise.
        !          5750:        * stor-layout.c (layout_type) Likewise.
        !          5751:        * expr.h (MUST_PASS_INSTACK_BAD_ALIGN): Likewise.
        !          5752:        * expr.c: Set default value of SLOW_UNALIGNED_ACCESS to zero.
        !          5753:        (move_by_pieces, move_by_pieces_ninsns, emit_push_insn):
        !          5754:        SLOW_UNALIGNED_ACCESS and STRICT_ALIGNMENT now true if non-zero.
        !          5755:        * function.c (assign_stack_local, assign_outer_stack_local):
        !          5756:        Remove turned-off code using STRICT_ALIGNMENT.
        !          5757:        * config/*.h: Change representation of STRICT_ALIGNMENT and
        !          5758:        SLOW_UNALIGNED_ACCESS.
        !          5759:        * gmicro.h (SLOW_UNALIGNED_ACCESS): Set to 1.
        !          5760: 
        !          5761:        * Makefile.in (cleanconfig): Remove obsolete reference to
        !          5762:        file aux-output2.c.
        !          5763: 
        !          5764:        * c-lex.c (yylex): Don't make out-of-range shift for very wide chars.
        !          5765: 
        !          5766: Fri Mar  6 18:07:00 1992  Richard Stallman  ([email protected])
        !          5767: 
        !          5768:        * toplev.c (compile_file): No -Wunused warnings for static vars.
        !          5769: 
        !          5770:        * collect2.c (main): Don't handle -B, -b, -V, -m or -f.
        !          5771:        collect2 gets only the options that ld would get.
        !          5772:        Process COLLECT_GCC_OPTIONS envvar.
        !          5773:        (savestring): New function.
        !          5774: 
        !          5775:        * genattrtab.c: Revert to previous version
        !          5776:        because the new one uses vsprintf and it isn't trivial
        !          5777:        to avoid it.
        !          5778: 
        !          5779: Fri Mar  6 17:26:09 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          5780: 
        !          5781:        * m88k.md (<O5> expressions): Don't rely on the assembler being able
        !          5782:        to handle constant expressions (Dolphin Triton88 can't).
        !          5783: 
        !          5784:        * genattrtab.c: Add a hash table mechanism to share RTL and strings.
        !          5785:        (attr_hash_add_rtx, attr_hash_add_string): New functions.
        !          5786:        (attr_rtx): New function to generate a shared RTL.
        !          5787:        (attr_printf, attr_printf): New functions to generate a shared string.
        !          5788:        
        !          5789:        * genattrtab.c: Extend the treatment of DEFINE_ATTR to allow a CONST
        !          5790:        expression as the default value, indicating a constant attribute.
        !          5791:        (struct attr_desc): Add `is_const' field.
        !          5792:        (check_attr_test): Add `is_const' parameter.  Disallow use of insn
        !          5793:        attributes and MATCH_OPERAND in a constant expression; allow
        !          5794:        SYMBOL_REF in a constant expression.  All callers updated.
        !          5795:        (chech_attr_value): Allow a SYMBOL_REF as a constant expression.
        !          5796:        (convert_const_symbol_ref): New function that converts a constant
        !          5797:        SYMBOL_REF to a COND that explictly tests each value.
        !          5798:        (make_canonical): Use `convert_const_symbol_ref' for constant
        !          5799:        SYMBOL_REF expressions.
        !          5800:        (make_length_attrs, find_attr, make_internal_attr): Mark `is_const'
        !          5801:        as false.
        !          5802:        (gen_attr): Get rid of a top-level CONST node and mark `is_const' true.
        !          5803:        (walk_attr_value): Use of a constant SYMBOL_REF does not set
        !          5804:        `must_extract' or `must_constrain'.
        !          5805:        (write_attr_get): Deal with constant attributes.
        !          5806: 
        !          5807: Fri Mar  6 16:14:27 1992  Richard Stallman  ([email protected])
        !          5808: 
        !          5809:        * cccp.c (main, path_include) [__MSDOS__]: Handle MSDOS syntax in path.
        !          5810: 
        !          5811:        * expr.c (store_expr): Fix bugs in last change.
        !          5812: 
        !          5813:        * objc-actions.c (receiver_is_class_object): Fix typos.
        !          5814: 
        !          5815:        * ecoff-cmp: File deleted.
        !          5816: 
        !          5817:        * config.sub (3b1): Convert to m68000, not m68k.
        !          5818: 
        !          5819:        * cccp.c (do_line): Handle "syetem header" indicator flag `3'.
        !          5820: 
        !          5821:        * t-i386isc: New file.
        !          5822:        * configure (i386-*-isc*): Use the new file.
        !          5823:        * i386isc.h (LIB_SPEC, ENDFILE_SPEC): Use crtbegin.o/crtend.o.
        !          5824: 
        !          5825: Fri Mar  6 14:37:25 1992  Torbjorn Granlund  ([email protected])
        !          5826: 
        !          5827:        * expmed.c (expand_dec): Fix comment.
        !          5828: 
        !          5829: Fri Mar  6 09:49:54 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          5830: 
        !          5831:        * m88k.c (emit_move_sequence): Check reload_in_progress in
        !          5832:        addition to reload_completed.
        !          5833: 
        !          5834:        * m88k.md (cpu attribute): Fix.
        !          5835: 
        !          5836: Fri Mar  6 06:24:08 1992  Michael Meissner  ([email protected])
        !          5837: 
        !          5838:        * mips.h (CONST_COSTS): Fix eliminate_constant_term calling
        !          5839:        sequence.
        !          5840: 
        !          5841:        * mips.c (simple_memory_operand): Move offset variable for calling
        !          5842:        eliminate_constant_term into a local block by the call.
        !          5843:        (mips_address_cost): Ditto.
        !          5844: 
        !          5845:        * mips.md (movsi_ulw, movsi_usw): Fix eliminate_constant_term
        !          5846:        calling sequence.
        !          5847: 
        !          5848: Fri Mar  6 00:30:10 1992  Richard Stallman  ([email protected])
        !          5849: 
        !          5850:        * fixincludes: Don't fix comments on #endif, #else.
        !          5851:        It made the egrep string too long.
        !          5852: 
        !          5853:        * expr.c (store_expr): Handle size mismatch copying from string cst.
        !          5854: 
        !          5855: Thu Mar  5 22:11:03 1992  Richard Stallman  ([email protected])
        !          5856: 
        !          5857:        * objc-actions.c (receiver_is_class_object): Clean up syntax.
        !          5858: 
        !          5859:        * sun386.h (ASM_GENERATE_INTERNAL_LABEL): Start with a star.
        !          5860: 
        !          5861:        * reload1.c (reload): Change `=' to `==' in `if'
        !          5862:        inside REGISTER_CONSTRAINTS conditional.
        !          5863: 
        !          5864: Thu Mar  5 21:29:33 1992  Michael Tiemann  ([email protected])
        !          5865: 
        !          5866:        * cp-parse.y (yyprint): Make declarations declare __inline
        !          5867:        consistently.
        !          5868: 
        !          5869: Thu Mar  5 18:34:32 1992  Jeffrey A. Law  ([email protected])
        !          5870: 
        !          5871:        * m68k.md (dbra patterns): Fix NO_ADDSUB_Q ifdef conditionals.
        !          5872:        Fix location of comment regarding use of REG_NOTES in dbra insns.
        !          5873: 
        !          5874: Thu Mar  5 18:30:55 1992  Richard Stallman  ([email protected])
        !          5875: 
        !          5876:        * Makefile.in (libgcc.a): If $(LIBGCC1) is empty, ignore it.
        !          5877:        * cross-make (LIBGCC1): Make definition empty.
        !          5878: 
        !          5879: Thu Mar  5 17:48:38 1992  Torbjorn Granlund  ([email protected])
        !          5880: 
        !          5881:        * reload.c (find_reloads): Correctly detect different operand
        !          5882:        constraint alternatives (by changing subscription from 0 to loop
        !          5883:        variable i).
        !          5884: 
        !          5885: Thu Mar  5 16:58:38 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          5886: 
        !          5887:        * Makefile.in (libsubdir): Rename $(libdir)/gcc gcc-lib.
        !          5888:        * gcc.c (STANDARD_EXEC_PREFIX): Ditto.
        !          5889: 
        !          5890:        * c-typeck.c: Implement a spelling stack to store and print
        !          5891:        compoment names for error messages.
        !          5892: 
        !          5893:        (push_{string,member_name,array_bounds}): New functions.
        !          5894:        (SPELLING_DEPTH, RESTORE_SPELLING_DEPTH, SAVE_SPELLING_DEPTH): New
        !          5895:        macros to save and restore the spelling stack.
        !          5896:        (digest_init, process_init_constructor): Use these.
        !          5897: 
        !          5898:        (spelling_length, print_spelling): New functions.
        !          5899:        (error_init, pedwarn_init): Use them.
        !          5900: 
        !          5901:        (get_spelling): New function.
        !          5902:        (convert_for_assignment): Use `get_spelling' to interpret messages
        !          5903:        that are based on the spelling stack.
        !          5904:        (process_init_constructor): Pass `&initialization_message'.
        !          5905: 
        !          5906: Thu Mar  5 15:22:22 1992  Jim Wilson  ([email protected])
        !          5907: 
        !          5908:        * expr.c (init_expr): Initialize forced_labels to zero.
        !          5909:        (save_expr_status): Saved forced_labels away and initilize to
        !          5910:        zero.
        !          5911:        (restore_expr_status): Restore value of forced_labels.
        !          5912:        * function.h (struct function): Add forced_labels field.
        !          5913:        * integrate.c (function_cannot_inline_p): Reject function with
        !          5914:        nonzero forced_labels.
        !          5915: 
        !          5916: Thu Mar  5 15:08:47 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          5917: 
        !          5918:        * regclass.c (fix_register): Use decode_reg_name.
        !          5919:        * stmt.c (expand_asm_operands): Ditto.
        !          5920:        * varasm.c (decode_reg_name): Ignore a leading '#'.
        !          5921: 
        !          5922:        For RMS:
        !          5923:        * cp-call.c (build_method_call): Delete now redundant tests of
        !          5924:        TREE_EXTERNAL before calls to assemble_external.
        !          5925:        * cp-init.c (build_virtual_init, build_builtin_call): Ditto.
        !          5926:        * cp-method.c (hack_identifier): Ditto.
        !          5927:        * cp-typeck.c (build_component_ref, build_function_call_real): Ditto.
        !          5928:        * c-parse.y (primary): Ditto.
        !          5929: 
        !          5930: Thu Mar  5 13:49:29 1992  Jeffrey A. Law  ([email protected])
        !          5931: 
        !          5932:        * expr.c (move_by_pieces_ninsns): Finish Mar. 4 change.  Do not
        !          5933:        choose a mode which has a size greater than MOVE_MAX.
        !          5934: 
        !          5935:        * m68k.c: Change all occurances of "mov." to "move%.l" so that
        !          5936:        ASM_OUTPUT_OPCODE can choose the right syntax.
        !          5937:        * m68k.md: Change "mov." to "move." in comments for consistency.
        !          5938: 
        !          5939: Thu Mar  5 10:04:52 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          5940: 
        !          5941:        * stmt.c (warn_if_unused_value): Handle NON_LVALUE_EXPR.
        !          5942: 
        !          5943:        * limits.h (_LIMITS_H_): Correct misspellings.
        !          5944: 
        !          5945:        * Makefile.in ("if" and "["): Romp, 4.3 BSD, and Ultirx systems
        !          5946:        fail when the condition is false.  Change troublesome instances to
        !          5947:        either use "case" or use '-' as a prefix to the compilation rule.
        !          5948: 
        !          5949: Thu Mar  5 09:08:11 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          5950: 
        !          5951:        * rs6000.md (lshrdi3): Add earlyclobber to first alternative.
        !          5952: 
        !          5953:        * explow.c (stabilize): Copy RTX_UNCHANGING_P and MEM_VOLATILE_P.
        !          5954: 
        !          5955: Thu Mar  5 06:05:31 1992  Michael Tiemann  ([email protected])
        !          5956: 
        !          5957:        * cp-parse.y (.pushlevel): Stack and unstack STMT_DECL_MSG.
        !          5958: 
        !          5959:        * cp-parse.y (unary_expr): Add EXTENSION support.
        !          5960:        ({maybe_label,label}_decls, label_decl): Define these rules as from
        !          5961:        c-parse.y.
        !          5962:        * cp-decl.c ({lookup,shadow,define}_label): Update from c-decl.c.
        !          5963:        * gplus.gperf: Add EXTENSION and LABEL.
        !          5964:        * cp-hash.h: Remade using gperf.
        !          5965: 
        !          5966: Wed Mar  4 21:38:41 1992  Jeffrey A. Law  ([email protected])
        !          5967: 
        !          5968:        * expr.c (move_by_pieces): Do not choose a mode which has a size
        !          5969:        greater than MOVE_MAX.
        !          5970: 
        !          5971: Wed Mar  4 23:24:25 1992  Per Bothner  ([email protected])
        !          5972: 
        !          5973:        * cp-class.c, cp-decl.c, cp-decl2.c, cp-init.c, cp-lex.c,
        !          5974:        cp-method.c, cp-typeck.c:  Casts from enum to int that
        !          5975:        are necessary (not alas not quite sufficient) to get
        !          5976:        cc1plus to compile using system cc on Sony NewsOS 3.2
        !          5977:        (presumably Portable C Compiler).
        !          5978: 
        !          5979: Wed Mar  4 22:05:39 1992  Michael Tiemann  ([email protected])
        !          5980: 
        !          5981:        * cp-type2.c (build_functional_cast): Fix typo in code searching
        !          5982:        down type lattice looking for constructor.
        !          5983: 
        !          5984: Wed Mar  4 16:52:21 1992  Jim Wilson  ([email protected])
        !          5985: 
        !          5986:        * gstdarg.h: Include va-sparc.h on sparc systems.  Delete now
        !          5987:        obsolete `#ifndef __sparc__'.
        !          5988:        * va-sparc.h (va_start): Provide alternate definition when
        !          5989:        included via stdarg.h.  Delete obsolete comment.
        !          5990:        (va_arg): Add missing set of parentheses.
        !          5991: 
        !          5992: Wed Mar  4 15:21:20 1992  David J. MacKenzie  ([email protected])
        !          5993: 
        !          5994:        * fixincludes: Make egrep pattern more general.  Check for
        !          5995:        additional special case problems in Ultrix, News-OS, and IRIX.
        !          5996: 
        !          5997: Wed Mar  4 15:15:45 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          5998: 
        !          5999:        * i386.c (function_epilogue): Don't make a special case for
        !          6000:        current_function_returns_struct: this is done via
        !          6001:        current_function_pops_args.
        !          6002: 
        !          6003:        * sun386.h (DATA_SECTION_ASSM_OP): Fix typo in undef.
        !          6004: 
        !          6005: Wed Mar  4 14:21:37 1992  David J. MacKenzie  ([email protected])
        !          6006: 
        !          6007:        * fixincludes, fixinc.svr4: Only change #else and #endif at the
        !          6008:        beginnings of lines, aside from whitespace, so it doesn't change
        !          6009:        them within comments. 
        !          6010: 
        !          6011: Wed Mar  4 09:48:21 1992  Michael Tiemann  ([email protected])
        !          6012: 
        !          6013:        * cp-method.c (build_decl_overload): Braino in handling of DELETE
        !          6014:        (NEW was handled correctly).
        !          6015: 
        !          6016: Wed Mar  4 09:14:57 1992  Jeffrey A. Law  ([email protected])
        !          6017: 
        !          6018:        * Makefile.in (install-man): Install the g++ manual page.
        !          6019: 
        !          6020:        * m68k.md (dbCC peepholes): Two new peepholes to recognize cases
        !          6021:        where a compare/branch can be done (for free) as part of a dbCC
        !          6022:        insn.  This turns jCC;dbf into dbCC;jCC (the jCC is now outside the
        !          6023:        inner part of the loop).
        !          6024: 
        !          6025:        * m68k.c (valid_dbcc_comparison_p): New function which returns TRUE
        !          6026:        if the given comparison is a valid comparison operator for the dbCC
        !          6027:        instruction.
        !          6028:        (output_dbcc_and_branch): New function to output a dbCC;jCC
        !          6029:        instruction sequence (including possible counter adjustments in
        !          6030:        SImode)
        !          6031: 
        !          6032: Wed Mar  4 04:32:11 1992  Michael Tiemann  ([email protected])
        !          6033: 
        !          6034:        * cp-dem.c (optable): Add entry for `operator='.
        !          6035: 
        !          6036:        * cp-decl.c (finish_function): Emit a jump to RETURN_LABEL if
        !          6037:        CLEANUP_LABEL is non-zero.  (Suggested by [email protected])
        !          6038: 
        !          6039: Wed Mar  4 04:28:10 1992  Richard Stallman  ([email protected])
        !          6040: 
        !          6041:        * libgcc1.c (perform_lesf2): Condition tested was backwards.
        !          6042: 
        !          6043: Wed Mar  4 03:11:48 1992  Ken Raeburn  ([email protected])
        !          6044: 
        !          6045:        * cp-pt.c (overload_template_name): Extra pushlevel isn't needed;
        !          6046:        omit it.
        !          6047:        (undo_template_name_overload): Don't pop the level that isn't pushed
        !          6048:        any more.
        !          6049: 
        !          6050:        * cp-class.c (pushclass): Don't bother processing unnamed tags.
        !          6051:        (popclass): Likewise.
        !          6052: 
        !          6053:        * cp-init.c (build_vec_delete): If pointer is null, don't do
        !          6054:        anything.
        !          6055: 
        !          6056:        * cp-parse.y (member_init): Accept base class names that are
        !          6057:        template type names.
        !          6058: 
        !          6059:        * cp-decl.c (start_decl): Don't prepend decl of `this' to arg lists
        !          6060:        of methods of uninstantiated types.
        !          6061: 
        !          6062:        * cp-pt.c (instantiate_template): If no text has been saved away,
        !          6063:        don't try to parse it; an external reference will result.
        !          6064: 
        !          6065:        * cp-parse.y (yyprint): Declare this at head of file.
        !          6066: 
        !          6067:        * cp-pt.c (instantiate_class_template): If the template specified
        !          6068:        hasn't been defined, don't reject the instantiation; make it a
        !          6069:        normal undefined type.
        !          6070: 
        !          6071:        * cp-parse.y (template_def): Try to recover from errors more
        !          6072:        gracefully.
        !          6073: 
        !          6074: Tue Mar  3 15:37:35 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          6075: 
        !          6076:        * protoize.c (munge_compile_params): Compute the maximum number of
        !          6077:        params (`temp_parms' length) safely.
        !          6078: 
        !          6079:        * dwarfout.c (const_value_attribute): Punt quasi-constant values.
        !          6080:        (location_or_const_value_attribute): Ditto.
        !          6081: 
        !          6082:        * Makefile.in (install-common): Install the cross compilation
        !          6083:        driver program even when $(tooldir)/bin doesn't exist.
        !          6084: 
        !          6085: Tue Mar  3 14:39:55 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          6086: 
        !          6087:        * i386.h (enum reg_class): Undo Jan 17 change that deleted class BREG.
        !          6088:        (REG_CLASS_NAMES,REG_CLASS_CONTENTS,REGNO_REG_CLASS): Likewise.
        !          6089:        (REG_CLASS_FROM_LETTER): Likewise.
        !          6090:        * i386.c (regclass_map): Likewise.
        !          6091: 
        !          6092:        * svr4.h (LINK_SPEC): Don't do -z or -t here: it's already in
        !          6093:        link_command_spec.  But do handle -G.
        !          6094: 
        !          6095:        * i386.md (casesi): Rewrite pattern to reflect the way to emitted
        !          6096:        code actually works.
        !          6097: 
        !          6098: Tue Mar  3 09:59:15 1992  Jeffrey A. Law  ([email protected])
        !          6099: 
        !          6100:        * m68k.md (dbra pattern in HImode): New pattern to match
        !          6101:        decrement_and_branch insns when the loop counter is decremented in
        !          6102:        HImode.
        !          6103: 
        !          6104: Tue Mar  3 07:57:18 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6105: 
        !          6106:        * rs6000.md (doz patterns): Add missing `I' constraint.
        !          6107: 
        !          6108:        * reorg.c (mark_target_live_regs): A CALL_INSN livens all global regs.
        !          6109: 
        !          6110:        * vax.h (EXTRA_CONSTRAINT): New macro to select non-mode-dependent
        !          6111:        MEM operands.
        !          6112:        * vax.md (jlbc/jlbs): Use jbc/jbs if mode-dependent memory.
        !          6113:        * vax.c (reg_or_nxmem_operand): Function deleted.
        !          6114: 
        !          6115:        * expr.c (do_store_flag): Swap comparison code when putting
        !          6116:        constant arg second.
        !          6117: 
        !          6118:        * m68k.md (addhi3): Convert, e.g., 65535 to -1 before seeing if
        !          6119:        we can use subqw.
        !          6120:        (addqi3): Similarly for QImode constants
        !          6121: 
        !          6122:        * local-alloc (optimize_reg_copy_1): Renamed from optimize_reg_copy.
        !          6123:        (optimize_reg_copy_2): New function.
        !          6124:        (update_equiv_regs): Call optimize_reg_copy_[12].
        !          6125: 
        !          6126:        * combine.c (make_compound_operation, case AND): Turn SUBREG case
        !          6127:        back on now that bug in i386.md has been fixed.
        !          6128:        (simplify_comparison, case ASHIFT): If shifting low-order bit to
        !          6129:        sign bit and doing equality comparison, convert to AND with low-order
        !          6130:        bit (inequality case was already handled).
        !          6131:        Also remove redundant test of CONST_OP in an earlier case.
        !          6132: 
        !          6133:        * sun2o4.h (LINK_SPEC): No longer need -Bstatic with -g.
        !          6134: 
        !          6135:        * m68k.c, m68k.h: Avoid %X% for most upper-case X since it means
        !          6136:        something special to SCCS.
        !          6137: 
        !          6138:        * rs6000.md (type): Add new type, mtlr.
        !          6139:        (function_unit branch): Add delay from mtlr to br.
        !          6140:        (movsi): When moving to lr, type is "mtlr".
        !          6141: 
        !          6142:        * unroll.c (reg_dead_after_loop): Check for infinite loop by
        !          6143:        counting JUMP_INSNs we follow.
        !          6144:        Use GET_RTX_CLASS, reg_referenced_p, and single_set.
        !          6145: 
        !          6146:        * expr.c (expand_increment): Set op0_is_copy when we are referencing
        !          6147:        the low-order part of some value in a register.
        !          6148: 
        !          6149:        * combine.c (force_to_mode): New arg REG; pass in recursive call.
        !          6150:        If X has the same value as REG, use REG.
        !          6151:        (make_field_assignment): Handle case when DEST and part of source
        !          6152:        aren't the same, but are equal; pass destination to force_to_mode.
        !          6153: 
        !          6154:        * m68k.md (addhi3): Generate addqw, subqw, or addw for
        !          6155:        STRICT_LOW_PART versions the same way we handle the normal case.
        !          6156:        (addqi3): Similarly for addqb, subqb, and addb.
        !          6157: 
        !          6158:        * genattrtab.c (write_test_expr, case MOD): Double `%' in printf call.
        !          6159:        (write_eligible_delay): Internal attribute "*delay_type" is always
        !          6160:        used literally; it has no suffix or prefix.
        !          6161:        
        !          6162:        * m68k.md, vax.md (sob): Rewrite inequality versions so that they
        !          6163:        have a PLUS inside the comparison; combine cannot remove the PLUS
        !          6164:        due to overflow considerations.
        !          6165: 
        !          6166: Tue Mar  3 07:56:30 1992  Eric Youngdale (youngdale at v6550c.nrl.navy.mil)
        !          6167: 
        !          6168:        * vms.h (L__main): Remove #include <stdio.h>
        !          6169: 
        !          6170:        * make-gcc.com: Call make-l2.com.
        !          6171: 
        !          6172: Tue Mar  3 05:37:08 1992  Michael Tiemann  ([email protected])
        !          6173: 
        !          6174:        * stor-layout.c (layout_type): Handle OFFSET_TYPE.
        !          6175:        * cp-tree.c (build_member_type): Deleted.
        !          6176:        * cp-typeck.c, cp-decl.c, cp-init.c: All callers of
        !          6177:        `build_member_type' now call `build_offset_type'.
        !          6178:        * cp-typeck.c (convert_arguments): An argument that's an OFFSET_REF
        !          6179:        must be resolved by `resolve_offset_ref'.  The OFFSET_REF case in
        !          6180:        expand_expr does not do the right thing for G++ yet.
        !          6181: 
        !          6182:        * cp-decl.c (grokdeclarator): Take CONSTP and VOLATILEP into account
        !          6183:        when building METHOD_TYPEs.
        !          6184:        (start_function): Ditto.
        !          6185: 
        !          6186:        * cp-method.c (build_decl_overload): Change interface to take DNAME
        !          6187:        instead of NAME.  Also, special-case handling of the default
        !          6188:        operator new and operator delete for the std. signatures.
        !          6189:        * cp-*.c: All callers changed.
        !          6190: 
        !          6191:        * cp-class.c (build_vtable_entry): Rewrite built-in limit check to
        !          6192:        work on platforms where SIZETYPE is unsigned.
        !          6193: 
        !          6194: Mon Mar  2 08:49:16 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          6195: 
        !          6196:        * m88k.c (m88k_debugger_offset): Delete warning.
        !          6197: 
        !          6198:        * m88k.h (OVERRIDE_OPTIONS): Set `m88k_cpu' based on `target_flags'.
        !          6199: 
        !          6200:        * m88k.md (cmpsi insn): Delete alternative that complements the
        !          6201:        compare string for a swapped compare (it's wrong and unnecessary).
        !          6202:        (cpu attribute): Define.
        !          6203: 
        !          6204:        From Jyrki Kuoppala:
        !          6205:        * pc532.h, pc532-mach.h, pc532-min.h, xm-ps532-min.h: New files.
        !          6206:        * configure (ns32k-pc532-mach*, ns32k-pc532-minix*): New alternatives.
        !          6207: 
        !          6208:        * dbxout.c (dbxout_type): Don't invoke dbxout_type_methods if
        !          6209:        there are none.
        !          6210: 
        !          6211:        * vax.c (print_operand_address): Allow REG+TERM.
        !          6212: 
        !          6213:        * c-typeck.c (process_init_constructor): Reuse space for error
        !          6214:        message strings.
        !          6215: 
        !          6216: Mon Mar  2 02:54:48 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          6217: 
        !          6218:        * seq386gas.h: New file, for Sequent using 386 & GAS.
        !          6219: 
        !          6220:        * xm-i386sco.h: New file.
        !          6221: 
        !          6222:        * optabs.c (ldexp): New function.  Used if host ldexp is broken.
        !          6223: 
        !          6224:        * configure (i386-sequent-bsd*): Use seq386gas.h if --gas.
        !          6225:        (i386-*-sco*): The host file is now xm-i386sco.h.
        !          6226: 
        !          6227:        * i386.md (SImode and HImode logical compare): If we are only
        !          6228:        testing one byte of a mem, use a byte test opcode.
        !          6229:        (bit test patterns): Likewise when emitting test opcodes.
        !          6230: 
        !          6231: Sun Mar  1 14:47:31 1992  Torbjorn Granlund  ([email protected])
        !          6232: 
        !          6233:        * longlong.h (_IBMR2 udiv_qrnnd): Switch off due to overflow problems.
        !          6234: 
        !          6235: Sun Mar  1 11:19:55 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6236: 
        !          6237:        * combine.c (force_to_mode): New function.
        !          6238:        (make_field_assignment): Rework code that handles fixed-position
        !          6239:        fields to make it both much more general and much simpler.
        !          6240: 
        !          6241:        * m68k.md: Add missing insns for using byte operations with
        !          6242:        STRICT_LOW_PART; add was missing commutative equivalent and
        !          6243:        most operations other than add and subtract were missing.
        !          6244: 
        !          6245:        * varasm.c (assemble_start_function): Add missing arg to call to
        !          6246:        dbxout_begin_function.
        !          6247: 
        !          6248:        * fold-const.c (const_binop): Make minor source change to work
        !          6249:        around bug in IBM RT PC compiler.
        !          6250: 
        !          6251: Sun Mar  1 05:01:34 1992  Michael Tiemann  ([email protected])
        !          6252: 
        !          6253:        * cp-typeck.c (build_modify_expr): When wrapping NEWRHS in a
        !          6254:        SAVE_EXPR, call `break_out_cleanups' first.
        !          6255: 
        !          6256: Sat Feb 29 23:19:20 1992  Jim Wilson  ([email protected])
        !          6257: 
        !          6258:        * reload.c (find_reloads): Reset preferred_class to NO_REGS after
        !          6259:        substituting a reg_equiv_address for a pseudo reg.
        !          6260: 
        !          6261:        * unroll.c (precondition_loop_p): Fix misplaced paren when checking
        !          6262:        for MODE_FLOAT rtx.
        !          6263: 
        !          6264: Sat Feb 29 13:59:54 1992  Michael Tiemann  ([email protected])
        !          6265: 
        !          6266:        * cp-typeck.c (build_modify_expr): To complete 24 Feb change,
        !          6267:        COND_EXPRs must evaluate LHS in conditional slot if LHS has side
        !          6268:        effects.  Otherwise the SAVE_EXPRs in lhs will only be evaluated
        !          6269:        once, even though they are referenced on both branches of the
        !          6270:        conditional.
        !          6271: 
        !          6272: Sat Feb 29 13:32:35 1992  David J. MacKenzie  ([email protected])
        !          6273: 
        !          6274:        * README.X11: Add warning to not use gas when compiling PIC code.
        !          6275: 
        !          6276:        * fixincludes: Allow TAB as well as SPC before symbols to change.
        !          6277:        Don't change "sun" if it's part of a multiword name that contains
        !          6278:        underscores.
        !          6279:        Make intermediate dir, if needed, when doing special-case fixes.
        !          6280:        Use previously fixed file, if it exists, as source for all special
        !          6281:        fixes.  Do less copying when making special fixes.
        !          6282:        Ignore errors when chmod'ing a file that might not exist.
        !          6283:        * fixinc.svr4: Preserve whitespace around "#" when fixing #else and
        !          6284:        #endif.
        !          6285:        Allow TAB as well as SPC before symbols to change.
        !          6286:        Combine "sun" cases as in fixincludes.
        !          6287: 
        !          6288: Sat Feb 29 11:10:55 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          6289: 
        !          6290:        * i386.md (movstrsi): Print opcode as "movsl" so that seq386.h can
        !          6291:        change it into smovl.
        !          6292: 
        !          6293: Sat Feb 29 09:15:51 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6294: 
        !          6295:        * function.c (expand_function_end): Allocate rtl that points to
        !          6296:        trampoline permanently.
        !          6297: 
        !          6298:        * reload1.c (gen_input_reload): If one operand of a PLUS is a MEM,
        !          6299:        move it into a reg and add the other (makes code agree with comments).
        !          6300: 
        !          6301:        * explow.c (eliminate_constant_term): Rework so it does not directly
        !          6302:        add integer values; call simplify_binary_operation instead.
        !          6303:        Second arg is now pointer to rtx, not int.
        !          6304:        Assume constant is always second operand of PLUS.
        !          6305:        (memory_address): Pass rtx pointer to eliminate_constant_term.
        !          6306:        * halfpic.c (half_pic_address_p): Likewise.
        !          6307:        * mips.c (simple_memory_operand, mips_address_cost): Likewise.
        !          6308:        (mips_debugger_offset): Likewise.
        !          6309:        * expr.c (expand_expr, case PLUS_EXPR): Likewise.
        !          6310:        Don't add INTVALs; use simplify_binary_operation instead.
        !          6311:        Remove obsolete OLD_INDEXING code.
        !          6312:        Put a MULT in the first operand of the PLUS.
        !          6313: 
        !          6314:        * combine.c (combinable_i3pat): Don't combine if I3DEST is a hard
        !          6315:        reg in a non-valid mode.
        !          6316: 
        !          6317: Sat Feb 29 09:14:19 1992  Eric Youngdale ([email protected])
        !          6318: 
        !          6319:        * vms.h (ASM_OUTPUT_COMMON): Use SIZE instead of ROUNDED bytes.
        !          6320:        (DO_GLOBAL_CTORS_BODY): Do not call fflush(stdout).
        !          6321: 
        !          6322:        * gcc.texi: Update GLOBAL[DEF,REF,VALUE] documentation.
        !          6323: 
        !          6324:        * make-l2.com: Remove call to test_gcc2.
        !          6325: 
        !          6326: Sat Feb 29 02:52:59 1992  Richard Stallman  ([email protected])
        !          6327: 
        !          6328:        * cccp.c (main): Rename envvars to CPLUS_INCLUDE_PATH and
        !          6329:        OBJCPLUS_INCLUDE_PATH.
        !          6330: 
        !          6331:        * m68k.h (TRANSFER_FROM_TRAMPOLINE): Use `move', not `mov'.
        !          6332: 
        !          6333: Fri Feb 28 19:39:09 1992  David J. MacKenzie  ([email protected])
        !          6334: 
        !          6335:        * fixincludes: Don't change symbols that already start with `_'
        !          6336:        into `__symbol__'.  Merge all of the sun* substitutions so they
        !          6337:        don't fight each other.
        !          6338:        Comment out junk after #elses and #endifs, to prevent warnings
        !          6339:        when -pedantic is given.
        !          6340: 
        !          6341: Fri Feb 28 13:42:05 1992  Jim Wilson  ([email protected])
        !          6342: 
        !          6343:        * sched.c (schedule_insns): Don't update value of reg_live_length
        !          6344:        when it is negative, because negative values are special.  Earlier
        !          6345:        fix Dec 17 disabled the fprintf call, but not the assignment.
        !          6346: 
        !          6347:        * unroll.c (copy_loop_body): After incrementing the base reg for a
        !          6348:        split DEST_ADDR giv, must subtract the const_adjust from the base
        !          6349:        reg to get its true current value.
        !          6350: 
        !          6351:        * loop.c (maybe_eliminate_biv_1): When handling COMPARE, verify
        !          6352:        that mult_val is positive, which makes the code match the comment,
        !          6353:        and surrounding code.
        !          6354: 
        !          6355:        * sparc.c (legitimize_pic_address): Always test reload_completed
        !          6356:        in addition to reload_in_progress.
        !          6357: 
        !          6358:        * sched.c (schedule_block): Don't reorder any USE insns at the end
        !          6359:        of a function.  Exclude them all from scheduling.
        !          6360: 
        !          6361:        * c-typeck.c (build_array_ref): Check for when `ar' is an
        !          6362:        error_mark_node and don't emit a second error message for that node.
        !          6363: 
        !          6364:        * Makefile.in: Correct misc typos in comments or spacing.
        !          6365:        (mostlyclean): Update names of files to delete.
        !          6366: 
        !          6367:        * Makefile.in (install-man): Also install cccp man page.
        !          6368:        (uninstall): Also delete cccp man page.  Don't delete protoize and
        !          6369:        unprotoize man pages twice.
        !          6370: 
        !          6371:        * Makefile.in (libgcc2.a): Delete unnecessary -fstrength-reduce -O
        !          6372:        flags on gcc command lines, superseded by LIBGCC2_CFLAGS.
        !          6373: 
        !          6374:        * Makefile.in (config.status): Verify that file does not exist
        !          6375:        before printing an error and failing.  Prevents problem with Sun's
        !          6376:        KEEP_STATE feature.
        !          6377: 
        !          6378: Fri Feb 28 05:15:58 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6379: 
        !          6380:        * stmt.c (expand_computed_goto): Call emit_queue.
        !          6381: 
        !          6382:        * function.c (assign_parms): Don't generate convert whose operand
        !          6383:        is register that is not valid in its mode.
        !          6384: 
        !          6385:        * reload.c (find_reloads_toplev): Don't do anything with paradoxical
        !          6386:        SUBREGs if BYTE_LOADS_ZERO_EXTEND.
        !          6387: 
        !          6388: Thu Feb 27 09:59:09 1992  Jeffrey A Law  (law at b115.super.org)
        !          6389: 
        !          6390:        * toplev.c (main): Enable caller-saves for all machines at
        !          6391:        optimization levels of -O2 or higher.
        !          6392:        * mips.h (OPTIMIZATION_OPTIONS): toplev.c will turn on
        !          6393:        caller-saves at -O2 now.  Do not do it here.
        !          6394:        * sparc.h (OPTIMIZATION_OPTIONS): Likewise
        !          6395: 
        !          6396: Thu Feb 27 06:47:31 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6397: 
        !          6398:        * cp-call.c: Move some extern declarations to file level.
        !          6399: 
        !          6400:        * emit-rtl.c (init_emit_once): Cast VOIDmode to int in array index.
        !          6401: 
        !          6402:        * reorg.c (mark_target_live_regs): Don't make recursive call if
        !          6403:        function being compiled has infinite loop.
        !          6404: 
        !          6405:        * cse.c (fold_rtx, case 'o'): New case to support folding LO_SUM.
        !          6406: 
        !          6407:        * global-alloc.c (global_alloc): When calling reload, pass the
        !          6408:        result of get_insns instead of basic_block_head[0].
        !          6409: 
        !          6410:        * c-typeck.c (process_init_constructor): Don't check array index
        !          6411:        against limits if array bounds weren't specified.
        !          6412: 
        !          6413:        * gcc.c (link_command_spec): Put back -s.
        !          6414: 
        !          6415:        * gcc.c (find_a_file): Add missing paren in init of file_suffix.
        !          6416: 
        !          6417:        * i386sun.h (LIB_SPEC): Insert missing blank.
        !          6418: 
        !          6419:        * sun386.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP): Add #undef.
        !          6420: 
        !          6421:        * sparc.h (LINK_SPEC): Correct comment.
        !          6422: 
        !          6423:        * sun3.h, i386sun.h (LINK_SPEC): Don't force -Bstatic if -g.
        !          6424: 
        !          6425:        * mips-news.h (ASM_SPEC): Add missing "}".
        !          6426: 
        !          6427:        * Makefile.in (install-native): Don't include install-proto.
        !          6428:        (.y.c): Suppress default rule for using Yacc.
        !          6429: 
        !          6430:        * combine.c (apply_distributive_law, case SUBREG): Check that word
        !          6431:        numbers are the same.
        !          6432:        Don't change a single-word operation into a multi-word operation.
        !          6433:        Put all checks on SUBREGs in one place.
        !          6434:        (gen_lowpart_for_combine): Use correct word number when making
        !          6435:        explicit SUBREG.
        !          6436: 
        !          6437:        * README.SCO: Obsolete file deleted.
        !          6438: 
        !          6439: Wed Feb 26 21:23:02 1992  Jim Wilson  ([email protected])
        !          6440: 
        !          6441:        * sparc.md (DImode sethi): Correctly handle CONST_DOUBLE, was
        !          6442:        wrong endian.
        !          6443:        (DImode lo_sum): Don't output CONST_DOUBLES as 64 bit constants,
        !          6444:        just output the low 32 bits.
        !          6445: 
        !          6446:        * unroll.c (find_splittable_givs): For combined address givs, save
        !          6447:        the increment amount in add_val.
        !          6448:        (copy_loop_body): For combined address givs, increment by the
        !          6449:        amount calculated by find_splittable_givs, not by the amount that
        !          6450:        the giv it was combined with gets incremented by.
        !          6451: 
        !          6452:        * expr.c (clear_pending_stack_adjust): Check flag_no_inline, not
        !          6453:        optimize, to determine whether functions declared inline will be
        !          6454:        inlined.
        !          6455: 
        !          6456:        * dbxout.c: Delete all #ifndef DBX_DEBUGGING_INFO stubs.  None of
        !          6457:        them are needed.
        !          6458: 
        !          6459:        * hp800.c, hp800.h: Fix typos in comments.
        !          6460: 
        !          6461: Wed Feb 26 02:39:52 1992  Michael Tiemann  (tiemann at rtl.cygnus.com)
        !          6462: 
        !          6463:        * cp-call.c (build_method_call): If conversion of INSTANCE_PTR
        !          6464:        yields error_mark_node, return error_mark_node immediately.
        !          6465: 
        !          6466: Tue Feb 25 23:40:01 1992  Mike Stump  (mrs at cygnus.com)
        !          6467: 
        !          6468:        * tree.c (array_type_nelts): Fix documentation, really nelts-1
        !          6469:        * cp-tree.c cp-tree.h cp-init.c (expand_vec_init): Fixed
        !          6470:        multi-dimensional array inits.
        !          6471: 
        !          6472: Mon Feb 24 00:03:23 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          6473: 
        !          6474:        * cp-tree.c (build_cplus_new): Set TREE_SIDE_EFFECTS bit on
        !          6475:        NEW_EXPR.
        !          6476: 
        !          6477:        * cp-typeck.c (build_modify_expr): Handle WITH_CLEANUP_EXPRs
        !          6478:        specially when they appear in expressions (not initializations).
        !          6479:        Also handle COND_EXPRs on the right-hand-side specially (in case one
        !          6480:        of the COND_EXPR's branches is a WITH_CLEANUP_EXPR).
        !          6481: 
        !          6482: Sun Feb 23 15:11:27 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          6483: 
        !          6484:        * cp-decl2.c (finish_anon_union): Make RTL for ANON_UNION_DECL based
        !          6485:        on MAIN_DECL.
        !          6486: 
        !          6487:        * cp-decl.c (lookup_tag): Deal with the fact that `clear_anon_tags'
        !          6488:        may have been run.
        !          6489: 
        !          6490:        * cp-decl.c (cplus_expand_expr_stmt): Give line number for usage
        !          6491:        whcih incurs warning message.
        !          6492: 
        !          6493: Sat Feb 22 20:49:45 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          6494: 
        !          6495:        * cp-decl.c (init_decl_processing,auto_function): New approach to
        !          6496:        defining the default functions `operator new' and `operator delete'.
        !          6497:        * cp-init.c (init_init_processing): Rest of changes here.
        !          6498:        * libgcc2.c (_builtin_{new,delete,New}): Gone.
        !          6499:        * libgcc2.c (_new_handler): New name for section that defines the
        !          6500:        default new handler.
        !          6501: 
        !          6502: Sat Feb 22 02:09:55 1992  Richard Stallman  ([email protected])
        !          6503: 
        !          6504:        * Version 2.0 released.
        !          6505: 
        !          6506:        * gcc.c (do_spec_1): Handle SPACE_AFTER_L_OPTION.
        !          6507:        * hp320.h (SPACE_AFTER_L_OPTION): Defined.
        !          6508:        Note: for 2.1, try making a space there on all systems.
        !          6509: 
        !          6510:        * i386mach.h (perform_*): New macros, copied from i386rose.h.
        !          6511: 
        !          6512:        * Makefile.in (distclean): New target.
        !          6513:        (realclean): Avoid duplication with self or with distclean.
        !          6514:        (gcc.xtar.Z): Depend on gcc.xtar.
        !          6515:        (gcc.xtar): Fixes in copying files.
        !          6516: 
        !          6517:        * expr.c (do_store_flag): Don't correct CODE before where it is set.
        !          6518: 
        !          6519:        * cp-parse.y (stmt): Pass pushcase_range all the args it wants.
        !          6520: 
        !          6521: Fri Feb 21 18:14:52 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6522: 
        !          6523:        * combine.c (distribute_notes): Correctly handle the case of a
        !          6524:        REG_DEAD note for a multi-word hard register when not all of
        !          6525:        the words are used.
        !          6526: 
        !          6527: Fri Feb 21 16:47:32 1992  Michael Meissner  ([email protected])
        !          6528: 
        !          6529:        * mips.h (MIPS_VERSION): Change Meissner version # to 12.
        !          6530:        (half_pic support): Move the halfpic support to halfpic.h which is
        !          6531:        included in the decrose case, and nop the support in other MIPS
        !          6532:        platforms.
        !          6533:        (OPTIMIZATION_OPTIONS): Move setting caller-saves to -O2.
        !          6534:        (OBJECT_FORMAT_COFF, EXTENDED_COFF): Define unless OSF/rose.
        !          6535:        (INITIAL_FRAME_POINTER_OFFSET): Always recalculate the frame size,
        !          6536:        don't rely on cached values.
        !          6537: 
        !          6538:        * mips.c (half_pic support): Move the halfpic support to halfpic.c,
        !          6539:        which is only compiled for OSF/rose.
        !          6540:        (expand_block_move): Use copy_addr_to_reg instead of copy_to_reg in
        !          6541:        case either the source or destination is an integer constant
        !          6542:        converted to an appropriate pointer type.
        !          6543:        (mips_debugger_offset): Use a local variable to hold function
        !          6544:        result.
        !          6545: 
        !          6546:        * decrose.h (toplevel): Include halfpic.h for halfpic support.
        !          6547:        (PTRDIFF_TYPE): Change to 'int' to match current include files.
        !          6548:        (WCHAR_TYPE): Change to 'unsigned int' to match include files.
        !          6549:        (INIT_SECTION_ASM_OP): Delete, since the OSF/rose assembler doesn't
        !          6550:        support a true initialization section.
        !          6551: 
        !          6552:        * encrose.h (PTRDIFF_TYPE): Change to 'int' to match current include
        !          6553:        files.
        !          6554:        (WCHAR_TYPE): Change to 'unsigned int' to match include files.
        !          6555: 
        !          6556:        * t-decrose (EXTRA_OBJS): Define as halfpic.o to provide halfpic
        !          6557:        support.
        !          6558:        (CONFIG2_H): Treat halfpic.h as another config file.
        !          6559:        (halfpic.o): Add dependencies.
        !          6560: 
        !          6561:        * halfpic.h (new file): Common include file for systems needing the
        !          6562:        OSF/rose half-pic shared library support.
        !          6563: 
        !          6564:        * halfpic.c (new file): Common support file for systems needing the
        !          6565:        OSF/rose half-pic shared library support.  Currently these are stub
        !          6566:        functions.
        !          6567: 
        !          6568: Fri Feb 21 16:07:02 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          6569: 
        !          6570:        * cp-parse.y (get_current_declspecs): New function
        !          6571:        (needed for naming sections).
        !          6572: 
        !          6573: Fri Feb 21 01:34:08 1992  Richard Stallman  ([email protected])
        !          6574: 
        !          6575:        * dwarfout.c (location_or_const_value_attribute): Use DECL_RTL again.
        !          6576:        Seems to be safer for the moment.
        !          6577:        * function.c (instantiate_decls): Don't instantiate DECL_INCOMING_RTL.
        !          6578: 
        !          6579:        * dwarfout.c (output_mem_loc_descriptor): Handle CONST like SYMBOL_REF.
        !          6580: 
        !          6581:        * collect2.c (errno): Declare if not macro.
        !          6582: 
        !          6583:        * dbxout.c [MIPS]: Include gstab.h, not stab.h.
        !          6584: 
        !          6585:        * dbxout.c (dbxout_symbol): No longer flush leading _ for C++ syms.
        !          6586: 
        !          6587:        * cp-parse.y (.hush_warning): Set $$.
        !          6588: 
        !          6589:        * gstdarg.h: Handle _HIDDEN_VA_LIST as in gvarargs.h.
        !          6590: 
        !          6591: Thu Feb 20 07:41:29 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6592: 
        !          6593:        * vax.c (reg_or_nxmem_operand): New function.
        !          6594:        (split_quadword_operands): Add missing return type (void).
        !          6595:        * vax.md (jlbc/jbc/jlbs/jbs): Handle QImode operands properly.
        !          6596: 
        !          6597:        * caller-save.c (set_reg_live): Use mode of SUBREG to see how many
        !          6598:        hard regs are written.
        !          6599: 
        !          6600:        * combine.c (simplify_shift_const, case IOR, AND, XOR): Perform
        !          6601:        logic computation in RESULT_MODE, not mode of VAROP.
        !          6602: 
        !          6603: Wed Feb 19 18:32:05 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6604: 
        !          6605:        * hp320.h (PRINT_OPERAND): Support codes '$' and '&'.
        !          6606: 
        !          6607:        * reload1.c (reload): Add cast of enum in index.
        !          6608: 
        !          6609:        * vms.h (CPP_PREDEFINES): Define __GNUC__ as 2.
        !          6610: 
        !          6611: Wed Feb 19 21:43:36 1992  Ron Guilmette  (rfg at ncd.com)
        !          6612: 
        !          6613:        * dwarfout.c (output_mem_loc_descriptor):  Deleted useless blank line.
        !          6614:        (output_mem_loc_descriptor) Added code to handle CONSTs in DECL_RTL
        !          6615:        expressions.
        !          6616:        (dwarfout_finish):  Added code to put a null string at the end of
        !          6617:        the terminating .debug_macinfo section.
        !          6618: 
        !          6619: Tue Feb 18 18:34:13 1992  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)
        !          6620: 
        !          6621:        * cccp.c (main): Fix typo in comment or spacing.
        !          6622:        * dbxout.c (dbxout_block): Likewise.
        !          6623:        * expr.c (convert_move): Likewise.
        !          6624:        * reload1.c (emit_reload_insn): Likewise.
        !          6625:        * rtl.h (REG_NOTES): Likewise.
        !          6626:        * sun4o3.h: Likewise.
        !          6627:        * ultrix.h (CPP_PREDEFINES): Likewise.
        !          6628:        * toplev.c (flag_no_common): Likewise.
        !          6629:        * stmt.c (layout_type): Likewise.
        !          6630:        * gcc.c (is_linker_dir, lookup_compiler): Likewise.
        !          6631: 
        !          6632:        * sched.c (schedule_block): Comment code handling USE insns as
        !          6633:        obsolete.
        !          6634: 
        !          6635: Tue Feb 18 14:44:49 1992  Richard Stallman  ([email protected])
        !          6636: 
        !          6637:        * c++: Run gcc in same dir as c++ was in, if exists there.
        !          6638:        Use `exec' to run it.
        !          6639:        New var `havefiles'; special message if no input files specified.
        !          6640:        Pass through any unrecognized options.
        !          6641: 
        !          6642:        * g++: Now a link to c++.
        !          6643: 
        !          6644: Tue Feb 18 04:54:52 1992  david d [zoo] zuhn  (zoo at lynx.spa.umn.edu)
        !          6645: 
        !          6646:        * protoize.c (main): added support for -p flag, to specify which
        !          6647:        gcc is the one to call for -fgen-aux-info support.
        !          6648: 
        !          6649: Tue Feb 18 07:29:23 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6650: 
        !          6651:        * combine.c (try_combine): Don't clobber OTHER_INSN's PATTERN if
        !          6652:        we aren't able to change the insn.
        !          6653: 
        !          6654:        * romp.md (bit_insv): Add missing CLOBBER when making pattern to
        !          6655:        match mftb; likewise for the DEFINE_INSN.
        !          6656: 
        !          6657: Tue Feb 18 01:03:41 1992  Richard Stallman  ([email protected])
        !          6658: 
        !          6659:        * rs6000.h (bss_section): Set `in_section' correctly.
        !          6660: 
        !          6661:        * expmed.c (synth_mult): Count second shift for alg_compound.
        !          6662:        Count extra shift for lea case.
        !          6663:        * m68k.h (RTX_COSTS): Reduce cost of multiply.
        !          6664: 
        !          6665:        * function.c (instantiate_decls): Instantiate DECL_INCOMING_RTL.
        !          6666: 
        !          6667: Mon Feb 17 19:17:50 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6668: 
        !          6669:        * a29k.md (divmodsi4, udivmodsi4): Don't use reg 180 explicitly.
        !          6670:        Instead use 'q' constraint letter.
        !          6671: 
        !          6672: Mon Feb 17 16:15:02 1992  Richard Stallman  ([email protected])
        !          6673: 
        !          6674:        * global-alloc.c (global_alloc): Always call `reload'.
        !          6675: 
        !          6676: Mon Feb 17 10:38:38 1992  Jim Wilson  (wilson at sphagnum.cygnus.com)
        !          6677: 
        !          6678:        * a29k.md (movdi define_split): Use DImode in operand_subword
        !          6679:        calls, not DFmode.
        !          6680: 
        !          6681: Mon Feb 17 08:20:33 1992  Michael Tiemann  (tiemann at mole.gnu.ai.mit.edu)
        !          6682: 
        !          6683:        * varasm.c (assemble_external): Check that DECL is some sort of
        !          6684:        _DECL before referencing its DECL_RTL.
        !          6685: 
        !          6686: Sun Feb 16 13:05:36 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          6687: 
        !          6688:        * cp-call.c (build_method_call): Add call to `assemble_external' in
        !          6689:        case this is the first use of FUNCTION.
        !          6690:        * cp-class.c (build_vfn_ref): Ditto for VTBL.
        !          6691:        * cp-decl2.c (write_vtable_entries): Ditto for FN.
        !          6692:        * cp-init.c (build_offset_ref): Ditto for T.
        !          6693:        * cp-typeck.c (build_function_call_real): Ditto for FUNCTION.
        !          6694:        * cp-method.c (hack_identifier): Ditto for VALUE.  Also remove
        !          6695:        action that made call to `assemble_external' when !TREE_USED (VALUE).
        !          6696: 
        !          6697:        * cp-lex.c (do_identifier): Remove call to `assemble_external' when
        !          6698:        implicitly declaring ID.
        !          6699: 
        !          6700:        * cp-parse.y (primary): Simplify the rules for calling
        !          6701:        `assemble_external'.
        !          6702: 
        !          6703:        * cp-decl.c (finish_function): For destructors, don't call
        !          6704:        expand_expr_stmt if EXPRSTMT is VOID_ZERO_NODE.
        !          6705: 
        !          6706:        * cp-typeck.c (default_conversion): Parallel Jan 21 change in
        !          6707:        c-typeck.c.
        !          6708: 
        !          6709: Sun Dec 16 23:31:54 1992  Ron Guilmette  (rfg at ncd.com)
        !          6710: 
        !          6711:        * dwarfout.c (fundamental_type_code):  Deleted gunk for handling
        !          6712:        OFFSET_TYPEs. (They are *not* fundamental types).
        !          6713:        (fundamental_type_code):  Fixed typo.
        !          6714:        (location_attribute, const_value_attribute):  Changed to take one
        !          6715:        rtx parameter rather than one tree parameter.
        !          6716:        (location_or_const_value_attribute):  Changed to use DECL_INCOMING_RTL
        !          6717:        rather than DECL_RTL for formal parameters.  Also changed calls to
        !          6718:        location_attribute and const_value_attribute to provide the rtl
        !          6719:        parameter.
        !          6720:        (fund_type_attribute):  Changed to accept an actual fundamental type
        !          6721:        code as a parameter directly.  Also changed all calls correspondingly.
        !          6722:        (type_attribute):  Separated tests for ERROR_MARK and for VOID_TYPE
        !          6723:        and added comments.
        !          6724:        (output_unspecified_parameters_die):  Changed to take one tree param
        !          6725:        and to generate *both* an AT_name and an AT_type attribute when the
        !          6726:        input parameter represents of function definition.  Also adjusted
        !          6727:        all calls correspondingly.
        !          6728: 
        !          6729: Sun Feb 16 00:54:10 1992  Richard Stallman  ([email protected])
        !          6730: 
        !          6731:        * fixincludes: Add #ifndef around size_t declaration in types.h.
        !          6732: 
        !          6733:        * varasm.c (assemble_external): Do nothing if arg isn't a decl.
        !          6734: 
        !          6735:        * Makefile.in (cp-parse.c): Update "expect" msg.
        !          6736: 
        !          6737:        * next.h (CPP_SPEC): Rename -bsd to -strict-bsd.
        !          6738: 
        !          6739:        * Makefile.in (mostlyclean): Add ld, mips-tfile, mips-tdump.
        !          6740: 
        !          6741:        * protoize.c (directory_specified_p): Don't match files in subdirs.
        !          6742: 
        !          6743:        * xm-rs6k-m.h: Renamed from xm-rs6000-mach.h.
        !          6744:        * configure (rs6000-*-mach*): Changed accordingly.
        !          6745: 
        !          6746:        * collect2.c (handler): No error msg here.  Just resend signal.
        !          6747:        (write_c_file): Arg to write_list... is pointer.
        !          6748:        (do_wait): Fix typo.
        !          6749:        (scan_prog_file for non-OSF): Preserve all underscores.
        !          6750: 
        !          6751:        * Makefile.in (install-collect2): Install gcc in libsubdir.
        !          6752: 
        !          6753: Sat Feb 15 15:26:03 1992  Richard Stallman  ([email protected])
        !          6754: 
        !          6755:        * varasm.c (decode_reg_name): Empty string is not a reg number.
        !          6756: 
        !          6757:        * fold-const.c (merge_component_references): NE tests against
        !          6758:        mismatched constants forces 1, not 0, as value.
        !          6759: 
        !          6760:        * i386gas.h (ASM_OUTPUT_OPCODE): Convert repz to repe.
        !          6761: 
        !          6762:        * collect2.c: Get rid of PROTO macro; use non-prototype decls.
        !          6763:        Don't include gstddef.h (had conflicts).  Use gstdarg.h, not stdarg.h.
        !          6764:        (xcalloc, xmalloc): Add casts.
        !          6765:        (do_wait): Avoid macros WTERMSIG, WEXITSTATUS missing on some machines.
        !          6766: 
        !          6767:        * cp-typeck.c (default_conversion): Don't use initial value if BLKmode.
        !          6768: 
        !          6769:        * objc-actions.c (finish_objc): Fix typos in last change.
        !          6770: 
        !          6771:        * c-aux-info.c, dbxout.c, cccp.c (errno): Declare, if not a macro.
        !          6772: 
        !          6773:        * i386.md (QI bit test recognizer): Split into separate patterns
        !          6774:        for memory and register args.  Make a scratch reg for memory.
        !          6775: 
        !          6776: Fri Feb 14 23:39:58 1992  Richard Stallman  ([email protected])
        !          6777: 
        !          6778:        * tree.c (get_identifier): Improve -Wid-clash message.
        !          6779: 
        !          6780: Fri Feb 14 16:22:48 1992  Michael Collison  (collison at osf.org)
        !          6781: 
        !          6782:        * i386rose.h (CPP_SPEC): Define the macros LANGUAGE_OBJECTIVE_C and
        !          6783:        LANGUAGE_C_PLUS_PLUS if we are compiling Objective C or C++.
        !          6784:        (INIT_SECTION_ASM_OP): Define as .init.
        !          6785:        (CC1PLUS_SPEC): Define it.
        !          6786:        (LINK_LIBGCC_SPECIAL): Define this to work around linker bug.
        !          6787: 
        !          6788: Fri Feb 14 00:38:15 1992  Richard Stallman  ([email protected])
        !          6789: 
        !          6790:        * Makefile.in (protoize.o, unprotoize.o): g++-include is under libdir.
        !          6791: 
        !          6792:        * Makefile.in (enquire.o): Make the command one long line.
        !          6793: 
        !          6794:        * gcc.c (do_spec_1): Omit relative prefixes from -L'ing
        !          6795:        only if RELATIVE_PREFIX_NOT_LINKDIR is defined.
        !          6796:        * rs6000.h (RELATIVE_PREFIX_NOT_LINKDIR): Defined.
        !          6797: 
        !          6798:        * varasm.c (assemble_external): Test TREE_EXTERNAL.
        !          6799: 
        !          6800:        * jump.c (follow_jumps): If can't find chain end, return orig label
        !          6801: 
        !          6802:        * mot3300.h (PRINT_OPERAND): Always print 16 hex digits for a double.
        !          6803: 
        !          6804:        * objc-actions.c (build_module_descriptor) [NEXT_OBJC_RUNTIME]: Ret 0.
        !          6805:        (finish_objc): Value 0 from build_module_descriptor means no ctor.
        !          6806:        When referencing a class_name symbol, don't output a .globl for it.
        !          6807:        (finish_objc): Put artificial refs in text section.
        !          6808: 
        !          6809:        * cccp.c (pedwarn_with_file_and_line): Handle -w, -W.
        !          6810: 
        !          6811: Fri Feb 14 07:44:08 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          6812: 
        !          6813:        * i386.c (notice_update_cc): sCOND opcodes don't change the flags.
        !          6814:        Don't record test or compares involving stack-like regs, since
        !          6815:        final can't omits tests or compares involving such regs correctly.
        !          6816: 
        !          6817:        * i386.c (seq,sne,beq,bne): These opcodes use the state of
        !          6818:        cc_status from before the curren insn.
        !          6819: 
        !          6820:        * reg-stack.c (stack_reg_mentioned_p): Don't make static.
        !          6821: 
        !          6822: Fri Feb 14 06:27:48 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6823: 
        !          6824:        * jump.c (jump_optimize): Disable "if (...) {... x = C;} if (x) ..."
        !          6825:        optimization; there doesn't seem to be a way to fix it.
        !          6826: 
        !          6827: Thu Feb 13 18:06:06 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          6828: 
        !          6829:        * seq386.h (ASM_OUTPUT_OPCODE): New macro. Change "movs" into
        !          6830:        "smov" at the start of a string move mnemonic - Sequent as(1)
        !          6831:        doesn't handle the former.
        !          6832: 
        !          6833: Thu Feb 13 17:21:26 1992  Richard Stallman  ([email protected])
        !          6834: 
        !          6835:        * c-decl.c (finish_struct): Use pedwarn for pedantic warning.
        !          6836:        (grokdeclarator): Likewise.
        !          6837:        * c-parse.y (component_decl_list2): Likewise.
        !          6838: 
        !          6839: Thu Feb 13 22:11:36 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6840: 
        !          6841:        * combine.c (make_extraction): Default modes to byte and register
        !          6842:        size, as appopriate, when the bitfield insn doesn't exist.
        !          6843: 
        !          6844:        * a29kunix.h (LINK_SPEC): Pass default option file to gld.
        !          6845:        (LINK_LIBGCC_SPECIAL): Define to work around gld bug.
        !          6846: 
        !          6847:        * explow.c (copy_to_suggested_reg): Try getting mode from TARGET.
        !          6848: 
        !          6849:        * rs6000.h (ASM_FILE_END): New macro.
        !          6850:        (EXTRA_SECTIONS): New section read_only_private_data.
        !          6851:        (EXTRA_SECTION_FUNCTIONS): New function read_only_private_data_section.
        !          6852:        (SELECT_RTX_SECTION): Always make non-toc data private, read-only.
        !          6853:        (SELECT_SECTION): Put read-only data in appropriate sections.
        !          6854: 
        !          6855:        *  jump.c (jump_optimize): Place branch in correct place when
        !          6856:        optimizing "if (...) {... x = C;} if (x) ...".
        !          6857:        (redirect_jump): Ensure jump's UID is within range of jump chain.
        !          6858: 
        !          6859:        * a29k.c (output_prologue): Correctly set LR1 when more than 64
        !          6860:        registers are needed.
        !          6861: 
        !          6862: Wed Feb 12 22:22:46 1992    (Eric Youngdale at [email protected])
        !          6863: 
        !          6864:        * make-cccp.com: Define link as a local symbol to avoid 
        !          6865:        possible conflict with a user defined global symbol.
        !          6866: 
        !          6867:        * make-cc1.com: Likewise.
        !          6868: 
        !          6869: Thu Feb 13 11:05:07 1992  Michael Meissner  (meissner at osf.org)
        !          6870: 
        !          6871:        * mips.c (make_temp_file): Store created filename into a static
        !          6872:        file-scope variable, not an auto.
        !          6873:        (mips_asm_file_end): Use the appropriate filename in printing
        !          6874:        errors.
        !          6875: 
        !          6876: Thu Feb 13 01:15:00 1992  Richard Stallman  ([email protected])
        !          6877: 
        !          6878:        * cccp.c (skip_if_group): Skip comments after the #.
        !          6879: 
        !          6880:        * cccp.c (macarg): Don't assume stringify will compress spaces.
        !          6881:        (macroexpand): In stringify, compress space only outside tokens.
        !          6882: 
        !          6883:        * cexp.y (exp1): Use pedwarn for comma in #if.
        !          6884: 
        !          6885:        * cp-decl.c (push_binding_level, pop_binding_level):
        !          6886:        Change `inline' to `__inline'.
        !          6887: 
        !          6888:        * combine.c (make_compound_operation): Undo previous change.
        !          6889: 
        !          6890: Wed Feb 12 18:47:47 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6891: 
        !          6892:        * function.c (instantiate_virtual_regs_1, case IF_THEN_ELSE):
        !          6893:        Don't special case; allow all operands to be processed.  The last
        !          6894:        two operands are nontrivial on the Vax.
        !          6895: 
        !          6896: Wed Feb 12 18:58:48 1992  Richard Stallman  ([email protected])
        !          6897: 
        !          6898:        * gcc.c (do_spec_1): Only absolute prefixes turn into -L's.
        !          6899:        (link_command_spec): Handle LINK_LIBGCC_SPECIAL.
        !          6900: 
        !          6901: Wed Feb 12 18:38:29 1992  Chris Smith  (csmith at convex.com)
        !          6902: 
        !          6903:        * convex.h (DEFAULT_CALLER_SAVES): define again, bug is fixed.
        !          6904:        * convex.h (BRANCH_COST): Define as 0, so we won't use complex
        !          6905:        alternatives to branches (whose expansions contain branches
        !          6906:        on convex).
        !          6907: 
        !          6908: Wed Feb 12 17:23:57 1992  Richard Stallman  ([email protected])
        !          6909: 
        !          6910:        * config.sub: Accept just `hppa' for machine.
        !          6911: 
        !          6912:        * Makefile.in (Install-collect2): New target.
        !          6913: 
        !          6914: Wed Feb 12 13:55:24 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6915: 
        !          6916:        * reorg.c (relax_delay_slots): Don't convert jump to return here.
        !          6917: 
        !          6918:        * configure (a29k-ultra-*): Deleted.
        !          6919:        (a29k-*-bsd*): Merged with a29k-ultra-*.
        !          6920:        (romp-*-mach*): Fixed typo in xmake_file name.
        !          6921:        * xm-a29kunix.h: Renamed from xm-a29k-ult.h.
        !          6922:        * x-a29kunix: New file.
        !          6923: 
        !          6924:        * reload.c (find_reloads): Don't use class from preference if it
        !          6925:        is a single-register class.
        !          6926: 
        !          6927: Wed Feb 12 13:03:16 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          6928: 
        !          6929:        * m88k.h (FUNCTION_BOUNDARY, ASM_OUTPUT_ALIGN): Pack code tightly
        !          6930:        when compiling crtstuff.c (flag_inhibit_size_directive).
        !          6931: 
        !          6932: Wed Feb 12 10:34:09 1992  Michael Meissner  (meissner at osf.org)
        !          6933: 
        !          6934:        * decrose.h (*_SPEC): Compress some whitespace in the specs.  Also,
        !          6935:        simpify which LANGUAGE_xxx names are defined, to be the ones uses by
        !          6936:        the system(s).
        !          6937:        * decstatn.h (*_SPEC): Likewise.
        !          6938:        * iris.h (*_SPEC): Likewise.
        !          6939:        * mips.h (*_SPEC): Likewise.
        !          6940:        * mips-bsd.h (*_SPEC): Likewise.
        !          6941:        * mips-news.h (*_SPEC): Likewise.
        !          6942:        * mips-sysv.h (*_SPEC): Likewise.
        !          6943: 
        !          6944: Wed Feb 12 10:34:09 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6945: 
        !          6946:        * caller-save.c (insert_save_restore): Properly check for insns that
        !          6947:        reference CC0.
        !          6948: 
        !          6949: Wed Feb 12 03:17:00 1992  Chris Smith  (csmith at convex.com)
        !          6950: 
        !          6951:        * convex.h (DEFAULT_CALLER_SAVES): don't define, to sidestep a bug.
        !          6952:        * convex.md (ffssi2): Comment out.
        !          6953: 
        !          6954: Wed Feb 12 00:08:42 1992    (Eric Youngdale at [email protected])
        !          6955: 
        !          6956:        * make-libgcc2.com: Do not save .s file.
        !          6957: 
        !          6958:        * vms.h: Wrap #include <stdio.h> in #ifdef L__main/endif
        !          6959: 
        !          6960: Tue Feb 11 21:58:42 1992    (Eric Youngdale at [email protected])
        !          6961: 
        !          6962:        * libgcc2.c (DO_GLOBAL_DTORS_BODY): New macro.
        !          6963: 
        !          6964:        * make-l2.com: New file to build libgcc2 on VMS.
        !          6965: 
        !          6966:        * vms.h (DO_GLOBAL_CTORS_BODY): Replacement definition.
        !          6967: 
        !          6968:        * vms.h (DO_GLOBAL_DTORS_BODY): Likewise.
        !          6969: 
        !          6970:        * make-cccp.com: Define bison and rename as local symbols to avoid 
        !          6971:        possible conflict with user defined global symbols.
        !          6972: 
        !          6973: Tue Feb 11 22:17:32 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6974: 
        !          6975:        * sched.c (attach_deaths): Don't treat PIC offset table register
        !          6976:        specially; flow.c doesn't.
        !          6977: 
        !          6978:        * combine.c (make_compound_operation, case AND): We can have
        !          6979:        a (and (subreg (lshiftrt ..) ..) ..); handle same as without SUBREG.
        !          6980:  
        !          6981:        * Makefile.in (HOST_CLIB, HOST_ALLOCA, HOST_MALLOC, HOST_OBSTACK): New
        !          6982:        variables to override.
        !          6983:        (USE_HOST_*, HOST_LIBDEPS): Use HOST_PREFIX and new variables.
        !          6984:        (HOST_LIBS): Use HOST_CLIB.
        !          6985: 
        !          6986: Tue Feb 11 21:32:07 1992  Richard Stallman  ([email protected])
        !          6987: 
        !          6988:        * Makefile.in (install-common-headers): Copy byteorder.h to
        !          6989:        compilation dir.
        !          6990: 
        !          6991:        * config.sub: Allow unicos as operating system.
        !          6992: 
        !          6993:        * m88kv4.h (INIT_SECTION_ASM_OP): Add #progbits.
        !          6994: 
        !          6995:        * vax.h (DYNAMIC_CHAIN_ADDRESS): New macro.
        !          6996: 
        !          6997:        * c++: Propagate quoted args properly.
        !          6998: 
        !          6999: Tue Feb 11 16:35:01 1992  Jim Wilson  (wilson at cygnus.com)
        !          7000: 
        !          7001:        * fixincludes: Define TERM to `unknown', to ensure that it is
        !          7002:        valid.  Otherwise, ex may fail.
        !          7003:        * fixinc.svr4: Likewise.
        !          7004: 
        !          7005: Tue Feb 11 18:04:32 1992  Michael Meissner  (meissner at osf.org)
        !          7006: 
        !          7007:        * decrose.h (CPP_SPEC): Define the macros LANGUAGE_OBJECTIVE_C and
        !          7008:        LANGUAGE_C_PLUS_PLUS if we are compiling Objective C or C++.
        !          7009:        Silicon Graphics in particular uses LANGUAGE_C_PLUS_PLUS.
        !          7010:        * decstatn.h (CPP_SPEC): Likewise.
        !          7011:        * iris.h (CPP_SPEC): Likewise.
        !          7012:        * mips-bsd.h (CPP_SPEC): Likewise.
        !          7013:        * mips-news.h (CPP_SPEC): Likewise.
        !          7014:        * mips-sysv.h (CPP_SPEC): Likewise.
        !          7015: 
        !          7016:        * decstatn.h (CPP_PREDEFINES): Eliminate __<name> versions, since
        !          7017:        gcc will do these automatically.  Eliminate LANGUAGE_C, since it is
        !          7018:        handled in CPP_SPEC.
        !          7019: 
        !          7020: Tue Feb 11 15:38:27 1992  Richard Stallman  ([email protected])
        !          7021: 
        !          7022:        * flow.c (find_basic_blocks): Don't delete labels used in non-jumps.
        !          7023: 
        !          7024:        * vms.h (DO_GLOBAL_CTORS_BODY): Modify the return address
        !          7025:        only the first time __main is called.
        !          7026: 
        !          7027:        * fixinc.svr4: Change headers to test __STRICT_ANSI__ instead of
        !          7028:        testing __STDC__ != 0.
        !          7029: 
        !          7030:        * fixinc.svr4 (mman.h): Fix backward __STDC__ conditional.
        !          7031:        Don't add declarations of munmap and mprotect.
        !          7032: 
        !          7033:        * varasm.c (output_constant): Allow empty constructor for any type.
        !          7034: 
        !          7035:        * dwarfout.c (ASM_OUTPUT_DWARF_DATA8): Just one definition;
        !          7036:        test WORDS_BIG_ENDIAN "at run time".
        !          7037: 
        !          7038: Tue Feb 11 09:00:01 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7039: 
        !          7040:        * reload.c (find_reloads): Don't substitute in MATCH_DUPs if we
        !          7041:        are not generating replacements.
        !          7042: 
        !          7043: Tue Feb 11 08:45:14 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          7044: 
        !          7045:        * m88kv4.h ({CTORS,DTORS}_SECTION_ASM_OP): Fix typo.
        !          7046: 
        !          7047: Mon Feb 10 22:34:47 1992  Chris Smith  (csmith at convex.com)
        !          7048: 
        !          7049:        * convex.h(HARD_REGNO_NREGS): define correctly for 64-bit regs
        !          7050: 
        !          7051: Mon Feb 10 21:50:23 1992  Michael Meissner  (meissner at osf.org)
        !          7052: 
        !          7053:        * mips.h (MIPS_VERSION): Change Meissner version # to 11.
        !          7054:        (CPP_SPEC): Define the macros LANGUAGE_OBJECTIVE_C and
        !          7055:        LANGUAGE_C_PLUS_PLUS if we are compiling Objective C or C++.
        !          7056:        Silicon Graphics in particular uses LANGUAGE_C_PLUS_PLUS.
        !          7057:        (FP_DBX_FIRST): Change the test so that stabs in ECOFF uses the
        !          7058:        value 38, in addition to stabs in GAS.
        !          7059: 
        !          7060:        * mips.md (all function units): Make the function units simpler, and
        !          7061:        not depend on the cpu type, to work around a memory hungry
        !          7062:        genattrtab, which attempts to grow the data segment to than 32
        !          7063:        megabytes.
        !          7064: 
        !          7065: Mon Feb 10 16:34:11 1992  Richard Stallman  ([email protected])
        !          7066: 
        !          7067:        * convex.h (REAL_VALUE_TRUNCATE): Obsolete definition deleted.
        !          7068: 
        !          7069:        * config.sub (convex-*): These are BSD, not sysv.
        !          7070: 
        !          7071:        * dbxout.c (have_used_extensions): New var.
        !          7072:        (dbxout_type, dbxout_type_fields, dbxout_symbol):
        !          7073:        Set have_used_extensions when use an extension.
        !          7074:        (dbxout_symbol): Don't use `Tt' extension unless extensions
        !          7075:        have been used.
        !          7076: 
        !          7077: Mon Feb 10 12:28:59 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7078: 
        !          7079:        * xm-a29k-ult.h: Fix typo in placement of copyright notice.
        !          7080: 
        !          7081: Mon Feb 10 05:36:45 1992  Richard Stallman  ([email protected])
        !          7082: 
        !          7083:        * dbxout.c (dbxout_type): Don't use GDB extensions if they are empty.
        !          7084: 
        !          7085: Mon Feb 10 00:10:20 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          7086: 
        !          7087:        * cp-class.c (finish_struct): Use DECL_CHAIN, not TREE_CHAIN to walk
        !          7088:        through the list of methods identified by a visibility declaration.
        !          7089: 
        !          7090:        * cp-cvt.c (convert_pointer_to): No longer need to abort if BINFO is
        !          7091:        not a TREE_VEC or AGGR_TYPE node.
        !          7092: 
        !          7093:        * cp-parse.y (stmt): Improve error handling for try/except.
        !          7094: 
        !          7095:        * cp-class.c (add_method): If we create RTL for a copy of METHOD,
        !          7096:        copy the RTL to METHOD's DECL_RTL slot.
        !          7097: 
        !          7098:        * cp-method.c (dump_type): Print `const' and/or `volatile' for
        !          7099:        VOID_TYPE and REAL_TYPEs, too.
        !          7100: 
        !          7101: Sun Feb  9 21:07:45 1992  Richard Stallman  ([email protected])
        !          7102: 
        !          7103:        * varasm.c (assemble_integer): Pass third arg in recursive calls.
        !          7104:        Act appropriately if word-by-word loop doesn't finish.
        !          7105: 
        !          7106:        * Makefile.in (bootstrap*): Don't override value of ALLOCA.
        !          7107: 
        !          7108:        * dbxout.c (dbxout_symbol, dbxout_parms): Do leaf function remap
        !          7109:        only if LEAF_REG_REMAP and only in leaf functions.
        !          7110: 
        !          7111: Sun Feb  9 16:46:27 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          7112: 
        !          7113:        * cp-init.c (maybe_adjust_addr_for_delete): Build final COND_EXPR
        !          7114:        with TREE_TYPE (addr).
        !          7115: 
        !          7116: Sun Feb  9 14:20:49 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7117: 
        !          7118:        * rs6000.h (rs6000_{bss,private_data,read_only}_section_name):
        !          7119:        Add declarations.
        !          7120:        (rs6000_text_section_asm_op): Deleted.
        !          7121:        (ASM_FILE_START): Initialize section names and enter bss section once.
        !          7122:        (EXTRA_SECTIONS): Add `private_data' and `bss';
        !          7123:        delete `global_variable'..
        !          7124:        (read_only_data_section): Don't form name here.
        !          7125:        (global_variable_section): Deleted.
        !          7126:        (private_data_section, bss_section): New functions.
        !          7127:        (ASM_DECLARE_FUNCTION_NAME): Don't write function name with [PR].
        !          7128:        (ASM_OUTPUT_POLL_PROLOGUE): No longer needed.
        !          7129:        (SELECT_{RTX_,}SECTION): Just calls data_section or
        !          7130:        private_data_section.
        !          7131:        (ASM_OUTPUT_LOCAL): Put in bss section.
        !          7132:        (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP): Now a constant.
        !          7133:        * rs6000.c (rs6000_text_section_asm_op): Deleted.
        !          7134:        (rs6000_{bss,private_data,read_only}_section_name): Add definitions.
        !          7135:        (rs6000_gen_section_name): New function.
        !          7136: 
        !          7137: Sun Feb  9 08:29:21 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          7138: 
        !          7139:        * i386.h (REGNO_REG_CLASS): Use a lookup table: AIX can't handle
        !          7140:        complex tertiary expressions.
        !          7141:        (GO_IF_LEGITIMATE_ADDRESS): Simplify slightly for the AIX
        !          7142:        compiler.
        !          7143: 
        !          7144:        * i386.c (regclass_map): New variable.  Lookup array for
        !          7145:        REGNO_REG_CLASS.
        !          7146: 
        !          7147: Sat Feb  8 01:20:33 1992  Richard Stallman  ([email protected])
        !          7148: 
        !          7149:        * cp-parse.y (yyprint): Test __GNUC__, not __GNU__.
        !          7150:        Use __inline, like everywhere else.
        !          7151: 
        !          7152:        * a29k.h, romp.h (OVERRIDE_OPTIONS): Deleted.
        !          7153:        (OPTIMIZATION_OPTIONS): Defined, instead.
        !          7154:        * rs6000.h (OPTIMIZATION_OPTIONS): New macro.
        !          7155:        (OVERRIDE_OPTIONS): Don't change optimization.
        !          7156: 
        !          7157:        * final.c (leaf_renumber_regs_insn): No longer static.
        !          7158:        * dbxout.c (dbxout_symbol, dbxout_parms): Call that.
        !          7159: 
        !          7160:        * c-decl.c (lookup_name): Do nothing special if type is error mark.
        !          7161:        (grokdeclarator): Ignore putative type name whose type is error mark.
        !          7162:        * c-parse.y (primary): If var type is error mark, return error mark.
        !          7163: 
        !          7164:        * c-typeck.c (build_array_ref): Return early if arg is error mark.
        !          7165: 
        !          7166:        * Makefile.in (test-protoize): Rule deleted.
        !          7167: 
        !          7168:        * stmt.c (emit_case_nodes): Handle just-left-subtree case
        !          7169:        like just-right-subtree--delete mysterious code that tests cost_table.
        !          7170: 
        !          7171:        * varasm.c (decode_reg_name): Accept decimal number as reg name.
        !          7172: 
        !          7173:        * c-decl.c (finish_decl): If pop_obstacks goes to perm obstack,
        !          7174:        call permanent_allocation.
        !          7175: 
        !          7176:        * gcc.c (link_command_spec): Use -lgcc, not libgcc.a.
        !          7177: 
        !          7178: Fri Feb  7 16:56:17 1992  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)
        !          7179: 
        !          7180:        * rs6000.h (DOLLARS_IN_IDENTIFIERS): Define to zero, because the
        !          7181:        assembler does not accept dollar signs.
        !          7182: 
        !          7183: Fri Feb  7 15:36:40 1992  Richard Stallman  ([email protected])
        !          7184: 
        !          7185:        * Makefile.in (mostlyclean): Fix name of tmp-proto.1.
        !          7186: 
        !          7187:        * configure: Delete excess space in assignment to srcdir.
        !          7188: 
        !          7189:        * cp-decl2.c (DOLLARS_IN_IDENTIFIERS): Default now 1, as in C.
        !          7190: 
        !          7191:        * i386gas.h (ASM_OUTPUT_LOOP_ALIGN): New macro.
        !          7192:        (ASM_OUTPUT_ALIGN_CODE): Use 16-byte boundary on 486.
        !          7193: 
        !          7194:        * m68k.h (TRANSFER_FROM_TRAMPOLINE): Use operands for the memrefs
        !          7195:        to avoid dependence on assembler syntax.
        !          7196: 
        !          7197: Fri Feb  7 10:26:32 1992  Michael Meissner  (meissner at osf.org)
        !          7198: 
        !          7199:        * Makefile.in (EXTRA_OBJS): New variable for extra object files
        !          7200:        needed when linking cc1, cc1plus, and cc1objc.
        !          7201: 
        !          7202: Fri Feb  7 07:34:03 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7203: 
        !          7204:        * reload1.c (set_label_offsets, reload_as_needed): Recompute
        !          7205:        num_not_at_initial_offset when we pick up offsets from offsets_at.
        !          7206: 
        !          7207:        * unroll.c (unroll_loop): Copy initial and final values to avoid
        !          7208:        sharing.
        !          7209:        
        !          7210:        * cse.c (simplify_relational_operation): Complete last change by
        !          7211:        correctly handling <= and >=.
        !          7212: 
        !          7213: Thu Feb  6 23:57:02 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          7214: 
        !          7215:        * cp-decl.c (grokdeclarator): Invert sense of warning about
        !          7216:        initialized extern vars, since in C++, const has funny semantics.
        !          7217: 
        !          7218: Thu Feb  6 15:12:02 1992  Richard Stallman  ([email protected])
        !          7219: 
        !          7220:        * cse.c (simplify_relational_operation): Test properly for floating
        !          7221:        equality; don't deduce this from < and >.
        !          7222: 
        !          7223:        * xm-mips.h (alloca): Don't define or declare if MIPS_OVERRIDE_ALLOCA.
        !          7224:        * xm-irix4.h (MIPS_OVERRIDE_ALLOCA): Defined.
        !          7225: 
        !          7226:        * m68k.h (TRANSFER_FROM_TRAMPOLINE): Use explicit reg var
        !          7227:        to avoid dependence on register name syntax.
        !          7228: 
        !          7229:        * mot3300.h (PUT_SDB_START_DIM, PUT_SDB_NEXT_DIM, PUT_SDB_LAST_DIM):
        !          7230:        New macros.
        !          7231:        (PUT_SDB_DIM): Deleted.
        !          7232:        (PRINT_OPERAND): Handle %$ and %&.
        !          7233:        (ASM_OUTPUT_OPCODE): Handle f%$move and f%&move.
        !          7234: 
        !          7235:        * gstdarg.h: If not __GNUC__, use system's stdarg.h.
        !          7236: 
        !          7237: Thu Feb  6 22:36:36 1992    (Eric Youngdale at [email protected])
        !          7238: 
        !          7239:        * vms.h (DEFAULT_GDB_EXTENSIONS): Define as 0.
        !          7240: 
        !          7241: Thu Feb  6 13:32:37 1992  Michael Meissner  (meissner at osf.org)
        !          7242: 
        !          7243:        * mips.h (MIPS_VERSION): Set Meissner version # to 10.
        !          7244:        (flag_half_pic, mips_branch_likely): New global variables.
        !          7245:        (call_memory_operand): New function declaration.
        !          7246:        (half_pic_encode_section_info): Likewise.
        !          7247:        (mips_constant_address_p): Likewise.
        !          7248:        (mips_debugger_offset): Likewise.
        !          7249:        (CC1_SPEC): Make OSF/1 -pic-xxx switches to -mhalf-pic, which is
        !          7250:        currently undergoing development.
        !          7251:        (DEBUGGER_AUTO_OFFSET): Emit correct information if frame pointer is
        !          7252:        omitted.
        !          7253:        (DEBUGGER_ARG_OFFSET): Likewise.
        !          7254:        (TARGET_SWITCHES): Add -mabicalls and -mhalf-pic switches.
        !          7255:        (PIC_OFFSET_TABLE_REGNUM): Define as the GP register ($28).
        !          7256:        (EXTRA_CONSTRAINT): Add 'S' constraint for half-pic references.
        !          7257:        (CONSTANT_ADDRESS_P): Call mips_constant_address_p.
        !          7258:        (ENCODE_SECTION_INFO): Reorder test to test optimize first, and to
        !          7259:        call half_pic_encode_section_info if half pic.
        !          7260:        (PREDICATE_CODES): Add call_memory_operand.
        !          7261: 
        !          7262:        * mips.c (flag_half_pic): New global variable to indicate to produce
        !          7263:        half-pic output for OSF/rose.
        !          7264:        (mips_branch_likely): New global variable to indicate the branch
        !          7265:        should use the branch likely form of the instruction.
        !          7266:        (mips_sw_reg_names): Use $fp instead of fp, since regdef.h no longer
        !          7267:        defines fp.
        !          7268:        (call_memory_operand): New function to return TRUE if the argument
        !          7269:        is a valid MEM for a call instruction.
        !          7270:        (mips_move_1word): Emit comment in la of half-pic addresses as a
        !          7271:        temporary flag to put the right code down.
        !          7272:        (mips_constant_address): New function to determine if something is a
        !          7273:        constant address or not.  Add stub code for -mhalf-pic.
        !          7274:        (override_options): Set flag_half_pic if -mhalf-pic.
        !          7275:        (override_options): Mark %? as valid for print_operand.
        !          7276:        (mips_debugger_offset): New function to correct the offset for
        !          7277:        variables and arguments if the frame pointer has been omitted.
        !          7278:        (print_operand): %? now emits a 'l' if mips_branch_likeley is set.
        !          7279:        (mips_asm_file_start, function_prologue): If -mabicalls, emit the
        !          7280:        pseudo ops that the Pyramid System V.4 port seems to want.
        !          7281:        (compute_frame_size): Reserve space for saving GP if -mabicalls.
        !          7282:        (half_pic_encode_section_info): Stub function for encoding whether
        !          7283:        or not to generate a half pic reference.
        !          7284: 
        !          7285:        * mips.md (type attribute): Add pic attribute.
        !          7286:        (cpu attribute): New attribute to get the CPU type.
        !          7287:        (branch_likely attribute): New attribute to say whether or not we
        !          7288:        can use branch likely instructions.
        !          7289:        (define_delay): Note that we can annull false branches if -mips2.
        !          7290:        (memory function unit): Add pic in addition to load.
        !          7291:        (various function units): Use the cpu attribute.
        !          7292:        (branch patterns): Support branch likely instructions if -mips2.
        !          7293:        (call, call_internal): Use call_memory_operand instead of
        !          7294:        memory_operand.  If -mhalf-pic put function address in a register.
        !          7295:        (call_value, call_value_internal): Likewise.
        !          7296: 
        !          7297:        * decrose.h (INIT_SECTION_ASM_OP): Define as .init.
        !          7298: 
        !          7299: Thu Feb  6 10:07:17 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          7300: 
        !          7301:        * m88k.c (preserve_registers): Change to walk the epilogue delay
        !          7302:        insns in the forward rather than reverse order (for reorg.c change).
        !          7303: 
        !          7304: Thu Feb  6 02:54:28 1992  Richard Stallman  ([email protected])
        !          7305: 
        !          7306:        * cse.c (simplify_binary_operation, case PLUS): Don't make
        !          7307:        a (const (plus X Y)) with X a CONST_INT.
        !          7308: 
        !          7309:        * fixincludes: Simplify egrep command.
        !          7310: 
        !          7311: Thu Feb  6 01:11:28 1992  Mark Eichin  (eichin at cygnus.com)
        !          7312: 
        !          7313:        * cp-lex.c (process_next_inline): if we get a "parse error at end of
        !          7314:        saved function text", set yychar to something that
        !          7315:        restore_pending_input will digest (if it thinks input is still
        !          7316:        pending, it will abort, but we've already reported the problem to
        !          7317:        the user.)
        !          7318: 
        !          7319: Wed Feb  5 18:42:56 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7320: 
        !          7321:        * reorg.c (fill_simple_delay_slots): When filling delay slots by
        !          7322:        searching backward, put each new insn we find at the head of the
        !          7323:        delay list instead of at the tail.
        !          7324: 
        !          7325:        * cse.c (fold_rtx): When associating operations, avoid infinite
        !          7326:        recursion if the new expression contains our operand.
        !          7327: 
        !          7328: Wed Feb  5 21:18:06 1992  Mark Eichin  (eichin at cygnus.com)
        !          7329: 
        !          7330:        * cp-decl.c (globalize_nested_type): If the type isn't found at all,
        !          7331:        this is an anonymous forward reference, so permit it.
        !          7332:        Abort if type is already globally defined.
        !          7333: 
        !          7334: Wed Feb  5 18:01:12 1992  Richard Stallman  ([email protected])
        !          7335: 
        !          7336:        * varasm.c, hp800.h, i386.h, m88k.h, mips.h, romp.h, vms.h:
        !          7337:        (ENCODE_SECTION_INFO): Renamed from ENCODE_SEGMENT_INFO.
        !          7338: 
        !          7339:        * sparc.md (nonlocal_goto): Copy static chain into
        !          7340:        virtual_stack_vars_rtx, not frame pointer itself.
        !          7341:        (nonlocal goto return recognizer): Jump to %o0+0.
        !          7342: 
        !          7343:        * toplev.c (main): Fix test for -Wid-clash.
        !          7344: 
        !          7345: Wed Feb  5 16:58:15 1992  Ron Guilmette  (rfg at ncd.com)
        !          7346: 
        !          7347:        * dwarfout.c (dwarfout_init):  Add two words containing the starting
        !          7348:        and ending address of the .text section for this compilation unit to
        !          7349:        the special initial entry in the .debug_srcinfo section.
        !          7350: 
        !          7351: Tue Feb  4 14:51:16 1992  Richard Stallman  ([email protected])
        !          7352: 
        !          7353:        * dbxout.c (dbxout_symbol): Handle DBX_OUTPUT_CONSTANT_SYMBOL.
        !          7354:        (dbxout_block): Handle DBX_OUTPUT_CATCH.
        !          7355: 
        !          7356:        * cccp.c (lookup_import, add_import, do_include):
        !          7357:        Use bcmp and bcopy to access st_ino and ->inode fields.
        !          7358: 
        !          7359:        * dbxout.c (dbxout_init): Pass syms to DBX_OUTPUT_STANDARD_TYPES.
        !          7360: 
        !          7361:        * fold-const.c (operand_equal_p): Check that modes match.
        !          7362:        (comparison_equiv_p): New function.
        !          7363:        (fold): Use that when converting ?: to min_expr or max_expr.
        !          7364: 
        !          7365:        * c-common.c (c_expand_expr_stmt): Test for ERROR_MARK as type.
        !          7366: 
        !          7367: Tue Feb  4 12:03:26 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          7368: 
        !          7369:        * stmt.c (expand_end_case): Don't crash if function called
        !          7370:        is not an ADDR_EXPR.
        !          7371: 
        !          7372: Tue Feb  4 14:17:22 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7373: 
        !          7374:        * expr.h ({float[sd]i[sd]f,fix[sd]f[sd]i,fixuns[sd]f[sd]i}_libfunc):
        !          7375:        New declarations.
        !          7376:        * optabs.c: Define them.
        !          7377:        (expand_float, expand_fix): Use them instead of making a new
        !          7378:        SYMBOL_REF each call.
        !          7379:        (init_optabs): Initialize them.
        !          7380: 
        !          7381: Tue Feb  4 00:27:35 1992  Richard Stallman  ([email protected])
        !          7382: 
        !          7383:        * Makefile.in (protoize.1, unprotoize.1): Rename temp files < 14 chrs.
        !          7384: 
        !          7385:        * cccp.c (skip_if_group): Make unknown cmd name a pedantic warning.
        !          7386: 
        !          7387: Mon Feb  3 18:10:41 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7388: 
        !          7389:        * romp.h (LEGITIMATE_CONSTANT_P, ENCODE_SEGMENT_INFO): Use
        !          7390:        SYMBOL_REF_FLAG.
        !          7391: 
        !          7392:        * x-romp-mach: New file.
        !          7393:        * configure (romp-*-mach*): New alternative.
        !          7394: 
        !          7395: Mon Feb  3 16:43:55 1992  Richard Stallman  ([email protected])
        !          7396: 
        !          7397:        * cp-typeck.c (warn_for_assignment): Print arg num in origin 1.
        !          7398: 
        !          7399:        * sparc.md (nonlocal_goto trap recognizer): Fix opcode spelling.
        !          7400: 
        !          7401:        * function.c (fix_lexical_addr): Properly search for correct display.
        !          7402: 
        !          7403:        * romp.h (OVERRIDE_OPTIONS): Don't set flag_omit_frame_pointer.
        !          7404: 
        !          7405: Mon Feb  3 11:11:58 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          7406: 
        !          7407:        * gcc.c (@c++-cpp-output): Delete extraneous "}}}" at the end of the
        !          7408:        rule.
        !          7409: 
        !          7410: Mon Feb  3 11:38:19 1992  Ron Guilmette  (rfg at ncd.com)
        !          7411: 
        !          7412:        * dwarfout.c (dwarfout_init):  Generate an initial 2-word entry in the
        !          7413:        .debug_srcinfo section containing the addresses of the starts of the
        !          7414:        .line and .debug_sfnames sections.  Generate it after the initial entry
        !          7415:        for the .line section.
        !          7416: 
        !          7417:        * dwarfout.c [DWARF_TIMESTAMPS]: Ensure time_t and time declared.
        !          7418:        (dwarfout_init):  Make third word of initial .debug_srcinfo entry be
        !          7419:        the compilation date/time if DWARF_TIMESTAMPS is defined, or else -1.
        !          7420: 
        !          7421:        * dwarfout.c (dwarfout_init):  Output compilation directory name as
        !          7422:        the first thing in the .debug_sfnames section.
        !          7423: 
        !          7424: Mon Feb  3 04:12:51 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          7425: 
        !          7426:        * Makefile.in (install-dir): `parent' is a shell variable.
        !          7427: 
        !          7428: Mon Feb  3 09:43:51 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          7429: 
        !          7430:        * m88k.h (EXTRA_SECTIONS): Use init and fini sections from svr3.h,
        !          7431:        but only when using svr3.h.
        !          7432: 
        !          7433: Sun Feb  2 19:50:29 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          7434: 
        !          7435:        * i386.h (ADDRESS_COST): New macro.
        !          7436: 
        !          7437: Sun Feb  2 17:08:47 1992  Michael Meissner  (meissner at osf.org)
        !          7438: 
        !          7439:        * mips.c (simple_memory_operand): Don't recognize references to
        !          7440:        variables in .sdata or .sbss, which has the effect of not putting
        !          7441:        stores into delay slots.  This fixes a bug and also doesn't temp the
        !          7442:        MIPS linker from trying to put 4 instructions into the delay slot
        !          7443:        when it rewrites the function as a PIC function.
        !          7444: 
        !          7445: Sun Feb  2 16:58:11 1992  Richard Stallman  ([email protected])
        !          7446: 
        !          7447:        * gbl-ctors.h (DO_GLOBAL_CTORS_BODY): Do ON_EXIT last.
        !          7448: 
        !          7449:        * Makefile.in (install-dir):  Create the parent of mandir if nec.
        !          7450: 
        !          7451:        * real.h (REAL_VALUE_TRUNCATE): sizeof says what cast to float does.
        !          7452: 
        !          7453:        * dbxout.c (DBX_OUTPUT_MAIN_SOURCE_DIRECTORY): New parameter macro.
        !          7454:        (DBX_OUTPUT_MAIN_SOURCE_FILENAME, DBX_OUTPUT_SOURCE_FILENAME):
        !          7455:        (DBX_OUTPUT_MAIN_SOURCE_FILE_END): Likewise.
        !          7456:        These are used in place of ASM_...
        !          7457:        * newpbb.h (DBX_OUTPUT_MAIN_SOURCE_FILENAME): Macro renamed.
        !          7458:        (DBX_OUTPUT_SOURCE_FILENAME): Likewise.
        !          7459:        * next.h (DBX_OUTPUT_MAIN_SOURCE_DIRECTORY): Macro renamed.
        !          7460:        (DBX_OUTPUT_MAIN_SOURCE_FILE_END): Likewise.
        !          7461: 
        !          7462: Sun Feb  2 12:51:54 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          7463: 
        !          7464:        * cp-typeck.c (build_component_ref_1): Call `compute_visibility'
        !          7465:        with a BASETYPE_PATH, not a TREE_LIST.
        !          7466: 
        !          7467:        * cp-class.c (build_vtable_entry): Apologize if we cannot build a
        !          7468:        proper vtable because of builtin liminations.
        !          7469: 
        !          7470: Sun Feb  2 07:30:08 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7471: 
        !          7472:        * reload.c (combine_reloads): Don't combine two reloads with different
        !          7473:        secondary reloads; copy secondary reload to combined reload.
        !          7474: 
        !          7475:        * cse.c (cse_main): PIC_OFFSET_TABLE_REGNUM is not clobbered by calls
        !          7476:        if -fpic or -fPIC.
        !          7477:        * reorg.c (mark_target_live_regs): Likewise.
        !          7478:        * sched.c (attach_deaths): Likewise.
        !          7479: 
        !          7480:        * flow.c (find_basic_blocks): Don't separate a CALL_INSN from
        !          7481:        following CLOBBER insns.
        !          7482: 
        !          7483:        * function.c (use_variable, use_variable_after): Don't interpret
        !          7484:        reference to internal arg pointer as variable-sized object.
        !          7485:        (expand_function_start, expand_function_end): Add USE for virtual
        !          7486:        arg pointer if stupid alloc and it is not the real arg pointer.
        !          7487: 
        !          7488:        * flow.c (insn_dead_p, mark_set_1, mark_used_regs): Don't treat
        !          7489:        ARG_POINTER_REGNUM specially if it isn't fixed.
        !          7490:        * sched.c (attach_deaths): Likewise.
        !          7491:        * reorg.c (mark_target_live_regs): Likewise; also make set of regs
        !          7492:        clobbered on call agree with cse and flow.
        !          7493: 
        !          7494:        * function.c (fix_lexical_addr): Rework to look for AP references
        !          7495:        using internal_arg_pointer; make some related cleanups.
        !          7496:        * expr.c (expand_expr, case VAR_DECL, SAVE_EXPR): Treat
        !          7497:        inline_function_decl just like current_function_decl.
        !          7498:        * stmt.c (expand_end_bindings): When restoring arg pointer, restore
        !          7499:        into the virtual form so we will subtract the proper offset, since
        !          7500:        the saved value includes the offset.
        !          7501: 
        !          7502: Sat Feb  1 14:41:34 1992  Ken Raeburn  ([email protected])
        !          7503: 
        !          7504:        * cp-pt.c (end_template_decl): For method template, no longer call
        !          7505:        popclass; it isn't needed any more.  If after processing template
        !          7506:        we're not at the global binding level, throw away any other binding
        !          7507:        levels, rather than aborting.  Also deleted some other unused code.
        !          7508: 
        !          7509: Sat Feb  1 09:13:47 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7510: 
        !          7511:        * xm-rs6000-mach.h, rs6000-mach.h: New files.
        !          7512:        * configure (rs6000-*-mach): New option.
        !          7513: 
        !          7514: Sat Feb  1 00:57:24 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          7515: 
        !          7516:        * i386.c: Include tree.h
        !          7517:        (symbolic_operand): New predicate function.
        !          7518:        (symbolic_reference_mentioned_p): New function.
        !          7519:        (legitimize_pic_address,emit_pic_move): New functions.
        !          7520:        (function_prologue): Delete unused variable nregs.
        !          7521:        If the PIC reg is used, save the old contents and initialize with
        !          7522:        a pointer to the GOT.
        !          7523:        (simple_386_epilogue): Count the PIC reg if it is used.
        !          7524:        (function_epilogue): Delete unused variable "insn".  Restore the
        !          7525:        original contents of the PIC reg if it was used.
        !          7526: 
        !          7527:        (output_pic_addr_const): New function to handle PIC symbol
        !          7528:        reference suffixes.
        !          7529:        (print_operand_address): Use that if flag_pic is true.
        !          7530:        (print_operand): Likewise.  Don't print a prefix in front of any
        !          7531:        constant if the 'P' code is used.
        !          7532: 
        !          7533:        (output_387_binary_op): abort if the op is not one we handle.
        !          7534: 
        !          7535:        (maximum_field_alignment): New variable.
        !          7536:        (handle_pragma_token): New function.  Handle `weak' and `pack'.
        !          7537: 
        !          7538:        * i386.h (CONDITION_REGISTER_USAGE): New macro.  Mark PIC reg as
        !          7539:        fixed and call used if flag_pic is true.
        !          7540:        (PIC_OFFSET_TABLE_REGNUM): New macro.
        !          7541:        (FUNCTION_PROFILER): Output PIC compatible code if flag_pic.
        !          7542:        (INITIAL_ELIMINATION_OFFSET): Count the PIC reg if it is used.
        !          7543: 
        !          7544:        (GO_IF_LEGITIMATE_ADDRESS): If flag_pic is true, reject bare
        !          7545:        label or symbol references, but allow constant pool references.
        !          7546:        In all cases, don't bother to check for a constant as the first
        !          7547:        operand of a PLUS.
        !          7548:        (LEGITIMIZE_ADDRESS): Call legitimize_pic_address for symbolic
        !          7549:        references if flag_pic is true.  In all cases, HImode regs are not
        !          7550:        valid memory pointers.
        !          7551:        (LEGITIMATE_PIC_OPERAND): New macro.
        !          7552:        (SYMBOLIC_CONST): New macro.
        !          7553:        (ENCODE_SEGMENT_INFO): New macro to notice static variables.
        !          7554:        (CONST_COSTS): Symbolic constants cost more if flag_pic is true.
        !          7555: 
        !          7556:        * i386.md (movsi): Use define_expand.  Call emit_pic_move for
        !          7557:        symbolic constants if flag_pic is true.
        !          7558:        (divmodM4,udivmodM4): Change predicates so that only regs are
        !          7559:        allowed in operands that can't be a mem.  Avoids reload
        !          7560:        congestion.
        !          7561:        (indirect_jump): Allow any reg or mem as operand, not just reg 0.
        !          7562:        (casesi): New insn, only used if flag_pic is true.
        !          7563:        (call,call_pop,call_value,call_value_pop): Use define_expand to
        !          7564:        record if this function ever emits a call, which will implicitly
        !          7565:        use the PIC address register.
        !          7566: 
        !          7567:        * svr4.h (SELECT_SECTION): Any item whose initial value involves
        !          7568:        linker relocation must go in the data section if flag_pic is true.
        !          7569: 
        !          7570:        * i386v4.h (ASM_OUTPUT_ADDR_DIFF_ELT): Output in PIC style.  If
        !          7571:        flag_pic is false, ADDR_DIFF_VECs are not output and this is not
        !          7572:        used.
        !          7573:        (JUMP_TABLES_IN_TEXT_SECTION): New macro.
        !          7574: 
        !          7575:        (WEAK_ASM_OP,DEF_ASM_OP): New macros.
        !          7576:        (maximum_field_alignment): New variable.  Declare here.
        !          7577:        (PCC_BITFIELD_TYPE_MATTERS): New macro.  Value depends on
        !          7578:        maximum_field_alignment.
        !          7579:        (BIGGEST_FIELD_ALIGNMENT): New macro.  Likewise.
        !          7580:        (HANDLE_PRAGMA): New macro.
        !          7581:        (ASM_OUTPUT_ALIGNED_LOCAL): New macro.
        !          7582: 
        !          7583: Sat Feb  1 00:15:41 1992  Richard Stallman  ([email protected])
        !          7584: 
        !          7585:        * flow.c (flow_analysis, find_basic_blocks):
        !          7586:        If have nonlocal labels, calls end basic blocks.
        !          7587:        Each call can jump to each nonlocal label.
        !          7588:        Pass extra arg to find_basic_blocks.
        !          7589:        * function.c (nonlocal_label_rtx_list): New function.
        !          7590: 
        !          7591:        * dbxout.c (dbxout_init): Vars wd and wd_gotten moved to top level
        !          7592:        and renamed to cwd and cwd_gotten.
        !          7593: 
        !          7594:        * c-decl.c (start_function): -Wmissing-prototypes warns if static
        !          7595:        function was previously used without a prototype.
        !          7596: 
        !          7597:        * loop.c (find_and_verify_loop): Initialize uid_loop_num[0].
        !          7598:        (loop_optimize): Give up fast if no loops.
        !          7599: 
        !          7600:        * stmt.c (expand_end_bindings): Don't adjust fp in nonlocal goto hndlr
        !          7601:        if there is a nonlocal_goto insn.
        !          7602: 
        !          7603:        * Makefile.in (cccp.o): Use just libdir in GPLUSPLUS_INCLUDE_DIR.
        !          7604: 
        !          7605:        * gcc.c (do_spec_1): Supply missing arg in some recursive calls.
        !          7606: 
        !          7607: Fri Jan 31 21:50:03 1992  Jeffrey A. Law  (law at wombat.gnu.ai.mit.edu)
        !          7608: 
        !          7609:        * m68k.h (OVERRIDE_OPTIONS): -fPIC is only supported on the 68020
        !          7610:        and later cpus.  Give an error if -fPIC is tried on a 68000.
        !          7611: 
        !          7612: Fri Jan 31 21:39:33 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7613: 
        !          7614:        * flow.c (find_auto_inc): If emitting a move insn in front of the
        !          7615:        first insn in a block, update basic_block_head.
        !          7616: 
        !          7617:        * caller-save.c (init_caller_save): Correctly check for case where the
        !          7618:        save or restore insns aren't recognized.
        !          7619: 
        !          7620: Fri Jan 31 21:02:35 1992  Mark Eichin  (eichin at cygnus.com)
        !          7621: 
        !          7622:        * cp-decl.c (pushtag): when calling pushdecl, if we're in a
        !          7623:          class_binding_level just do a pushdecl_class_level. Otherwise
        !          7624:          pushdecl gets called multiple times on class-nested enums, which
        !          7625:          short circuits the name list in the global_binding_level.
        !          7626: 
        !          7627: Fri Jan 31 00:14:20 1992  Richard Stallman  ([email protected])
        !          7628: 
        !          7629:        * stmt.c (expand_goto): Use nonlocal_goto pattern if it exists.
        !          7630:        * sparc.md (nonlocal_goto): New pattern.
        !          7631:        Also nameless pattern for the special trap insn.
        !          7632: 
        !          7633:        * gcc.c (S_ISDIR): Add default definition.
        !          7634: 
        !          7635:        * function.c (expand_function_end):
        !          7636:        Set up arg_pointer_save_area at start of function.
        !          7637: 
        !          7638:        * c++: Accept -nostdlib, not -nostinc.
        !          7639: 
        !          7640:        * va-sparc.h: If GCC v1, define __extension__ as nothing.
        !          7641:        * va-i860.h, va-pyr.h, va-spur.h: Likewise.
        !          7642: 
        !          7643:        * cp-class.c (finish_struct): Fill in DECL_ALIGN of vtable field.
        !          7644: 
        !          7645:        * regclass.c (reg_class_record):
        !          7646:        Don't follow indirect loops in constraints.
        !          7647: 
        !          7648:        * function.c, expr.h (current_function_internal_arg_pointer): New var.
        !          7649:        * function.c (assign_parms): Set it.
        !          7650:        (push_function_context, pop_function_context): Save and restore it.
        !          7651:        * expr.c (expand_builtin): Use it.
        !          7652:        * function.h (struct function): New slot to save it in.
        !          7653: 
        !          7654:        * cse.c (cse_main): Calls do clobber arg pointer if not fixed.
        !          7655: 
        !          7656:        * hp320.h (HAVE_ATEXIT): New definition.
        !          7657: 
        !          7658:        * Makefile.in (ALL_CPPFLAGS): New variable.
        !          7659:        Use in all compile steps instead of CPPFLAGS.
        !          7660:        (X_CPPFLAGS, T_CPPFLAGS): New vars, used in ALL_CPPFLAGS.
        !          7661:        * x-vax (X_CPPFLAGS): Use this instead of X_CFLAGS.
        !          7662: 
        !          7663:        * stmt.c (expand_end_bindings): Fix typo.
        !          7664: 
        !          7665: Fri Jan 31 12:15:09 1992  Ron Guilmette  (rfg ay ncd.com)
        !          7666: 
        !          7667:        * dwarfout.c (LINE_LAST_ENTRY_LABEL): Definition added.
        !          7668:        (dwarfout_finish):  Put a label on the last .line section entry.
        !          7669:        (dwarfout_finish):  Make first word of final .debug_srcinfo record
        !          7670:        contain the offset of the final .line section entry.
        !          7671: 
        !          7672: Fri Jan 31 10:31:44 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          7673: 
        !          7674:        * cp-tree.c (__eprintf): Make definition match assert.h
        !          7675:        declaration.
        !          7676: 
        !          7677: Thu Jan 30 23:17:11 1992  Per Bothner  (bothner at cygnus.com)
        !          7678: 
        !          7679:        * c++:  The flags -c, -S, or -E suppress passing -lg++
        !          7680:        to gcc.  (Otherwise, gcc prints a warning.)
        !          7681: 
        !          7682: Thu Jan 30 21:10:02 1992  Ron Guilmette  (rfg at ncd.com)
        !          7683: 
        !          7684:        * dwarfout.c (dwarfout_init):  Fix generation of initial .debug_aranges
        !          7685:        entry to be Dwarf Version 1 compliant.
        !          7686: 
        !          7687: Thu Jan 30 15:51:27 1992  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)
        !          7688: 
        !          7689:        * i386sun.h (LINK_SPEC): Delete useless %{-Bstatic} term.
        !          7690:        * sun2o4.h (LINK_SPEC): Likewise.
        !          7691:        * sun3.h (LINK_SPEC): Likewise.
        !          7692:        * sparc.h (LINK_SPEC): Delete useless %{Bstatic} term.
        !          7693: 
        !          7694:        * cccp.c (default_include): Delete use of obsolete
        !          7695:        NO_STANDARD_INCLUDE_DIR macro.
        !          7696:        * protoize.c (default_include): Likewise.
        !          7697: 
        !          7698:        * Makefile.in (libgcc1.null): Delete dummy.o and dummy.c.
        !          7699: 
        !          7700: Thu Jan 30 15:34:06 1992  Michael Meissner  (meissner at osf.org)
        !          7701: 
        !          7702:        * gstdarg.h: Include va-mips.h on MIPS systems.
        !          7703: 
        !          7704:        * va-mips.h (va_start): Provide alternate definition when included
        !          7705:        via stdarg.h.
        !          7706:        (va_arg): Use __alignof(...) instead of sizeof(...) to determine
        !          7707:        whether or not to dword align the argument pointer.
        !          7708: 
        !          7709: Thu Jan 30 13:06:36 1992  Richard Stallman  ([email protected])
        !          7710: 
        !          7711:        * Makefile.in (install-common): Get c++ and g++ from srcdir.
        !          7712: 
        !          7713:        * i860.h (FIXED_REGISTERS): Arg pointer is no longer fixed.
        !          7714: 
        !          7715:        * assert.h (__eprintf): Add const to string args in GCC ANSI case.
        !          7716: 
        !          7717:        * Makefile.in (cccp.o, protoize.o, unprotoize.o):
        !          7718:        Define LOCAL_INCLUDE_DIR based on $(prefix).
        !          7719: 
        !          7720:        * stmt.c (expand_end_bindings): Arg pointer needs no special
        !          7721:        treatment if not fixed.
        !          7722: 
        !          7723:        * cp-parse.y, c-lex.c (yyerror):
        !          7724:        Avoid sign-extension of characters in error messages.
        !          7725: 
        !          7726: Thu Jan 30 11:39:56 1992  Ron Guilmette  (rfg at ncd.com)
        !          7727: 
        !          7728:        * dwarfout.c (dwarfout_finish):  Fix generation of .debug_pubnames
        !          7729:        terminating entry to be 4-bytes of zero followed by a null string.
        !          7730: 
        !          7731: Thu Jan 30 09:30:19 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7732: 
        !          7733:        * rs6000.c (ccr_bit): Fix typo causing reference to possibly
        !          7734:        undefined operand.
        !          7735: 
        !          7736:        * rs6000.h (ASM_SPEC): Remove until new AIX assembler is available.
        !          7737:        (ASM_OUTPUT_POOL_PROLOGUE): Add missing "." in csect name.
        !          7738:        (ENCODE_SEGMENT_INFO): Deleted.
        !          7739:        (ASM_OUTPUT_EXTERNAL): Move code from ENCODE_SEGMENT_INFO here,
        !          7740:        using permalloc instead of putting name into saveable_obstack.  
        !          7741:        Re-enable macro.
        !          7742:        (ASM_OUTPUT_EXTERNAL_LIBCALL): Re-enable.
        !          7743: 
        !          7744: Wed Jan 29 21:50:26 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7745: 
        !          7746:        * rs6000.h (ASM_SPEC): Add -u, now require new /bin/as for AIX.
        !          7747:        (ASM_OUTPUT_EXTERNAL, ASM_OUTPUT_EXTERNAL_LIBCALL): No longer needed.
        !          7748: 
        !          7749:        * rs6000.h (ENCODE_SEGMENT_INFO): New macro; add [RW] or [DS] to name.
        !          7750:        (RS6000_OUTPUT_BASENAME): New macro.
        !          7751:        (ASM_OUTPUT_*): Use it instead of assemble_name when required.
        !          7752:        (ASM_OUTPUT_POOL_PROLOGUE): Remove trailing [RW] or [DS].
        !          7753:        * rs6000.c (print_operand, case 'z'): New case, for name in CALL_INSN.
        !          7754:        (output_toc): Use RS6000_OUTPUT_BASENAME instead of assemble_name
        !          7755:        for toc entry name.
        !          7756:        * rs60000.md (call): Use %z.
        !          7757: 
        !          7758: Wed Jan 29 17:17:42 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          7759: 
        !          7760:        * cp-init.c (build_member_call): Fix bug involving static members
        !          7761:        that are function pointers.
        !          7762: 
        !          7763: Wed Jan 29 13:25:18 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          7764: 
        !          7765:        * gcc.c (do_spec_1): For %D, only add -L options that are relevant.
        !          7766:        (is_linker_dir): Determine if a -L option is relevant.
        !          7767: 
        !          7768: Wed Jan 29 00:57:55 1992  Richard Stallman  ([email protected])
        !          7769: 
        !          7770:        * configure: Turn ns32k alternatives back on.
        !          7771: 
        !          7772:        * Makefile.in (getopt.o, getopt1.c): Join two lines into one.
        !          7773: 
        !          7774:        * x-i386v4, x-i860v4 (GCC_CFLAGS): Add missing `-B./'.
        !          7775: 
        !          7776:        * reload.c (find_dummy_reload, push_reload): Don't reuse dying input
        !          7777:        reg as a reload if it is a fixed reg.
        !          7778: 
        !          7779:        * c-tree.h (C_MISSING_PROTOTYPE_WARNED): Deleted since unused.
        !          7780: 
        !          7781: Wed Jan 29 00:42:34 1992  Tim Moore  (moore at fast.cs.utah.edu)
        !          7782: 
        !          7783:        * hp800.c (print_operand): Handle INSN_ANNULLED_BRANCH_P in '*'
        !          7784:        operand type.
        !          7785:        * hp800.h (DEFAULT_GDB_EXTENSIONS): Define as 0.
        !          7786:        * hp800.md (cmpsi): Change arith_operand to arith5_operand.
        !          7787:        (bCC patterns): Delete pattern that matches a compare with a
        !          7788:        constant first operand. Change arith_operand to arith5_operand.
        !          7789:        (fp branches): Change type to cbranch.
        !          7790: 
        !          7791:        * function.c (assign_parms): Set current_function_arg_offset_rtx
        !          7792:        correctly for ARGS_GROW_DOWNWARD.
        !          7793:        * gstdarg.h: Include va-hp800.h.
        !          7794:        * va-hp800.h: Complete rewrite.
        !          7795: 
        !          7796: Tue Jan 28 17:04:38 1992  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)
        !          7797: 
        !          7798:        * varasm.c (make_decl_rtl): Delete unused var `i'.
        !          7799: 
        !          7800:        * c-convert.c (convert_to_pointer):
        !          7801:        Abort if no integer type is as wide as a pointer.
        !          7802: 
        !          7803:        * gcc.c (default_compilers, .i case): Add error message for -pg
        !          7804:        and -fomit-frame-pointer incompatibility.
        !          7805: 
        !          7806:        * Makefile.in (install-common): Install c++ and g++ shell scripts in
        !          7807:        bindir.
        !          7808: 
        !          7809: Tue Jan 28 15:44:10 1992  Michael Collison  (collison at osf.org)
        !          7810: 
        !          7811:        * x-encrose (OLDCC): changed to $(GNU_ROSE_BIN)/gcc
        !          7812: 
        !          7813:        * ns32k.h: Added trampoline code.
        !          7814: 
        !          7815: Tue Jan 28 14:19:52 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7816: 
        !          7817:        * rtl.def (UNSPEC, UNSPEC_VOLATILE): New RTL codes.
        !          7818:        * cse.c (canon_hash): UNSPEC_VOLATILE operations are volatile.
        !          7819:        * loop.c (invariant_p): Likewise.
        !          7820:        * reorg.c (mark_referenced_resources): Likewise.
        !          7821:        * sched.c (sched_analyze_2): Likewise.
        !          7822:        * rtlanal.c (volatile_refs_p, side_effects_p, may_trap_p): Likewise.
        !          7823:        (reg_referenced_p): Support UNPEC and UNSPEC_VOLATILE.
        !          7824: 
        !          7825: Tue Jan 28 11:50:35 1992  Michael Meissner  (meissner at osf.org)
        !          7826: 
        !          7827:        * mips.c (toplevel): Add include of <ctype.h>, since isdigit is
        !          7828:        used.
        !          7829: 
        !          7830: Tue Jan 28 05:47:08 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          7831: 
        !          7832:        * cp-decl.c (xref_tag): Addition to eichin's Jan 25 change.  If REF
        !          7833:        is extant, and it's seen in the global scope outside of
        !          7834:        CLASS_BINDING_LEVEL, set its IDENTIFIER_GLOBAL_VALUE if NULL.
        !          7835: 
        !          7836:        * cp-class.c (pushclass): Forcibly remove any remnants of incomplete
        !          7837:        type that was previously pushed.
        !          7838: 
        !          7839:        * cp-decl.c (various places): Remove all error messages about C++
        !          7840:        constructs being invalid in C language context; extern "C" is a
        !          7841:        linkage specifier--no more.
        !          7842: 
        !          7843:        * cp-method.c (dump_type_prefix,dump_type): Never need to output
        !          7844:        `unsigned' since its always part of an unsigned integer type name.
        !          7845:        (build_overload_name): Change test for unsigned to use
        !          7846:        `unsigned_type' instead of examining TREE_UNSIGNED.
        !          7847: 
        !          7848:        * cp-call.c (ideal_candidate): Don't convert PARMS in place if
        !          7849:        BASETYPE is NULL_TREE.
        !          7850: 
        !          7851: Tue Jan 28 02:21:31 1992  Richard Stallman  ([email protected])
        !          7852: 
        !          7853:        * c-decl.c (grokdeclarator): Use `auto' for nested fn fwd decls.
        !          7854: 
        !          7855:        * g++: New file.
        !          7856: 
        !          7857:        * fixincludes:
        !          7858:        Convert machine names in #if's to have underscores.
        !          7859:        Fix specific files stdlib.h, locale.h, hsfs/... for Sunos 4.1.
        !          7860:        * fixinc.svr4: Convert machine names in #if's to have underscores.
        !          7861: 
        !          7862:        * gcc.c (do_spec_1): For %D, also make -L's for startfile_prefix.
        !          7863:        Also append the machine
        !          7864: 
        !          7865:        * fold-const.c (fold_convert): Properly handle real-to-real case.
        !          7866: 
        !          7867:        * configure (i486-*-sysv4*): New alternative.
        !          7868: 
        !          7869: Tue Jan 28 00:37:24 1992  Ron Guilmette  (rfg at ncd.com)
        !          7870: 
        !          7871:        * dwarfout.c (location_attribute):  Fix handling of objects which
        !          7872:        were optimized out of existance for Dwarf Version 0 compliance.
        !          7873: 
        !          7874: Tue Jan 28 00:42:57 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          7875: 
        !          7876:        * Makefile.in (mostlyclean): Delete stack dump files too.
        !          7877: 
        !          7878: Mon Jan 27 18:26:27 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7879: 
        !          7880:        * rs6000.h (HAVE_ATEXIT, NO_DOLLAR_IN_LABEL): Now defined.
        !          7881: 
        !          7882: Mon Jan 27 13:32:51 1992  Richard Stallman  ([email protected])
        !          7883: 
        !          7884:        * libgcc2.a (L_exit): Declare __CTOR_LIST__ and __DTOR_LIST__
        !          7885:        with length 2; get rid of __CTOR_END__ and __DTOR_END__.
        !          7886:        (L_ctor_list, L_dtor_list): New library members.
        !          7887: 
        !          7888:        * cccp.c (main): Add terminating null, then call trigraph_pcp.
        !          7889: 
        !          7890:        * fixincludes, fixinc.svr4: Fail unless an arg was given.
        !          7891:        * Makefile.in (install-fixincludes): Pass output dir as argument.
        !          7892: 
        !          7893:        * Makefile.in: Renamed libgcc[12] to libgcc[12].a.
        !          7894:        Likewise for tmplibgcc[12].
        !          7895: 
        !          7896:        * toplev.c (rest_of_decl_compilation): Treat all fcns as if external.
        !          7897: 
        !          7898:        * Makefile.in (TAGS): Do the work in srcdir.
        !          7899:        Include c-parse.h in files to move.
        !          7900: 
        !          7901: Mon Jan 27 10:54:24 1992  Jim Wilson  (wilson at sphagnum.cygnus.com)
        !          7902: 
        !          7903:        * cccp.c (get_filename): Don't pass -1 file descriptor to close.
        !          7904: 
        !          7905: Mon Jan 27 00:26:33 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          7906: 
        !          7907:        * cp-decl.c (start_function): Preserve TREE_TYPE of RESULT_DECL, in
        !          7908:        case we have a named return value.
        !          7909:        (finish_function): Restrict the cases under which we build
        !          7910:        `no_return_label'.  Use CURRENT_FUNCTION_RETURN_VALUE to eliminate
        !          7911:        the generation of needless cleanups when functions end with a return
        !          7912:        stmt.  No longer zeros out CLEANUP_LABEL.  Also, call `emit_jump'
        !          7913:        instead of `expand_null_return' in case NO_RETURN_LABEL is
        !          7914:        non-NULL.
        !          7915: 
        !          7916:        * cp-decl2.c (grokfield): Don't specially hack static member
        !          7917:        function names.
        !          7918: 
        !          7919:        * cp-except.c (cplus_expand_raise): Test correct predicate that we
        !          7920:        have a non-null value return.
        !          7921:        (cplus_expand_{throw,reraise}): Ditto.
        !          7922: 
        !          7923:        * cp-typeck.c (c_expand_return): Handle case where named return
        !          7924:        value has incomplete type.
        !          7925: 
        !          7926: Sun Jan 26 20:50:55 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          7927: 
        !          7928:        * cp-parse.y (LC): Fix rule to use `push_obstacks_nochange'.
        !          7929:        (structsp): Use `pop_obstacks'.
        !          7930: 
        !          7931: Sun Jan 26 17:39:15 1992  Richard Stallman  ([email protected])
        !          7932: 
        !          7933:        * c-parse.y (LC): Use push_obstacks_nochange and always call
        !          7934:        end_temporary_allocation.
        !          7935:        (structsp, template_instantiate_once): After LC, use pop_obstacks.
        !          7936: 
        !          7937:        * c-decl.c (grokdeclarator):
        !          7938:        Static function decl within a function is not external.
        !          7939: 
        !          7940: Sun Jan 26 08:14:53 1992  Michael Meissner  (meissner at osf.org)
        !          7941: 
        !          7942:        * mips.h (MIPS_VERSION): Bump meissner version # to 9.
        !          7943:        (enum processor_type): Delete PROCESSOR_R2000, since a r2000
        !          7944:        schedules just like a r3000.
        !          7945:        (mips_isa, mips_isa_string, mips_cpu_string): New global variables.
        !          7946:        (MD_EXEC_PREFIX): If not defined, define as "/usr/lib/cmplrs/cc/".
        !          7947:        (TARGET_SWTICHES macros): Move setting the processor from
        !          7948:        TARGET_SWITCHES to TARGET_OPTIONS.  Also, delete the -mfixed-ovrfl
        !          7949:        switch, and move -mwc8/-mwc16 to not use any bits, since we can't
        !          7950:        support these in GCC 2.00.  Readjust the positions the bits are in.
        !          7951:        (TARGET_OPTIONS): Define to add switches -mcpu=x to set which
        !          7952:        processor type to schedule for, and -mipsx to specify the
        !          7953:        instruction set architecture level.
        !          7954:        (BRANCH_LIKELY_P): New macro, true if MIPS ISA >= 2.
        !          7955:        (HAVE_64BIT_P): New macro, true if MIPS_ISA >= 3.
        !          7956:        (HAVE_SQRT_P): New macro, true if MIPS_ISA >= 2.
        !          7957:        (BRANCH_COST): Define as 2 if r4000/r6000, 1 otherwise.
        !          7958:        (ASM_OUTPUT_SKIP): Eliminate OSF/1 gas work around.
        !          7959: 
        !          7960:        * mips.c (mips_isa, mips_isa_string, mips_cpu_string): New global
        !          7961:        variables.
        !          7962:        (print_options): Print CPU and ISA level.
        !          7963:        (override_otpions): Handle TARGET_OPTIONS setting cpu and ISA.
        !          7964:        (override_options, print_operand): %: is no longer supported, since
        !          7965:        -mfixed-ovfl is eliminated.
        !          7966: 
        !          7967:        * mips.md (type attribute): Add fsqrt.
        !          7968:        (all define_function_units): Redo, to add full r6000 and r4000
        !          7969:        support, and to use the default case in case another processor type
        !          7970:        is added.  Also, tests against PROCESSOR_R2000 eliminated.
        !          7971:        (add, subtract patterns): Delete use of %:.
        !          7972:        (sqrtdf2, sqrtsf2): Define if the MIPS ISA >= 2.
        !          7973: 
        !          7974:        * decrose.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX): Define these to
        !          7975:        use the defaults on the OSF/1 reference platform.
        !          7976:        (i386rose.h): Likewise.
        !          7977: 
        !          7978: Sun Jan 26 07:58:00 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7979: 
        !          7980:        * cse.c (cse_insn): Don't call insert_regs on a SUBREG.
        !          7981:        When scanning table for SUBREG assignment, ignore invalid entries.
        !          7982: 
        !          7983:        * cse.c (cse_insn): When looking for first non-deleted entry in
        !          7984:        table, start by scanning backwards from the deleted entry.
        !          7985: 
        !          7986:        * function.c (assign_parms): Set current_function_return_rtx
        !          7987:        unconditionally.
        !          7988:        (expand_function_start): Don't set it here.
        !          7989: 
        !          7990: Sat Jan 25 06:44:16 1992  Mark Eichin  (eichin at cygnus.com)
        !          7991: 
        !          7992:        * cp-decl.c (set_identifier_local_value): New function. Clone of
        !          7993:        set_identifier_type_value, but uses level->shadowed instead. Only
        !          7994:        used in pushdecl, where the non-global install was previously
        !          7995:        setting the local value directly which "stuck" and didn't get
        !          7996:        cleared the next time through.
        !          7997:        (pushdecl): use set_identifier_type_value so that the local value
        !          7998:        actually gets erased when we leave this level. Changed code that
        !          7999:        checks for global_binding_level to recognize that if
        !          8000:        class_binding_level is set, we're not in the global one.
        !          8001:        (poplevel_class): restore shadowed list too, like poplevel does.
        !          8002:        (print_binding_level): added no_print_functions and
        !          8003:        no_print_builtins variables to eliminate clutter while trying to
        !          8004:        debug binding level problems.
        !          8005: 
        !          8006: Fri Jan 24 18:03:36 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          8007: 
        !          8008:        * tree.c (pop_momentary): Don't reference freed stack entry.
        !          8009: 
        !          8010: Fri Jan 24 14:20:05 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          8011: 
        !          8012:        * cp-parse.y (stmt): Call `define_case_label' for default label.
        !          8013:        * cp-decl.c (current_function_return_value): New variable.
        !          8014:        (define_{case_}label): Clear CURRENT_FUNCTION_RETURN_VALUE.
        !          8015:        * cp-typeck.c (c_expand_return): Set CURRENT_FUNCTION_RETURN_VALUE.
        !          8016: 
        !          8017:        * cp-tree.c (lang_printable_name): Use DECL_RING, and don't free
        !          8018:        the printable name for CURRENT_FUNCTION_DECL.
        !          8019: 
        !          8020: Fri Jan 24 14:17:30 1992  Richard Stallman  ([email protected])
        !          8021: 
        !          8022:        * gvarargs.h: If _ANSI_H, undef _VA_LIST_.
        !          8023: 
        !          8024:        * c-typeck.c (pointer_int_sum): Don't distribute * into pointer diff.
        !          8025: 
        !          8026:        * hp320.h (MD_STARTFILE_PREFIX): Defined.
        !          8027:        (STANDARD_STARTFILE_PREFIX): Deleted.
        !          8028: 
        !          8029: Fri Jan 24 09:30:41 1992  Fred Fish  (fnf at fishpond)
        !          8030: 
        !          8031:        * assert.h (__eprintf):  Declare as prototype for __STDC__
        !          8032: 
        !          8033: Fri Jan 24 05:28:53 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          8034: 
        !          8035:        * i386.md (jump,indirect_jump,tablejump): Don't output an align
        !          8036:        directive here: let the following BARRIER do it.
        !          8037: 
        !          8038: Thu Jan 23 11:54:11 1992  Ron Guilmette  (rfg at ncd.com)
        !          8039: 
        !          8040:        * i486v4.h:  New file.
        !          8041: 
        !          8042: Thu Jan 23 20:34:22 1992  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)
        !          8043: 
        !          8044:        * fixinc.svr4: Surround uses of ${INPUT} with "" instead of ''
        !          8045:        so that it will get expanded.
        !          8046: 
        !          8047: Thu Jan 23 17:50:13 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          8048: 
        !          8049:        * cse.c (qty_mode): New variable.
        !          8050:        (reg_rtx): Deleted.
        !          8051:        (hard_regs_in_table, regs_invalidate_by_call): New variables.
        !          8052:        (new_basic_block): Clear hard_regs_in_table.
        !          8053:        (delete_reg_equiv): New name for reg_invalidate; don't update reg_tick.
        !          8054:        (mention_regs): Don't set reg_rtx.
        !          8055:        Update reg_tick for all registers in a multi-register hard register
        !          8056:        reference.
        !          8057:        (insert_regs): Don't do anything special with SUBREG.
        !          8058:        Only insert register in a class if it is the same mode.
        !          8059:        Don't set reg_rtx; set qty_mode instead.
        !          8060:        (insert): Update hard_regs_in_table.
        !          8061:        Get constant equivalence in proper mode.
        !          8062:        (merge_equiv_classes): Call delete_reg_equiv.
        !          8063:        (invalidate): Call delete_reg_equiv and update reg_tick.
        !          8064:        Invalidate all parts of multi-word hard regs and invalidate
        !          8065:        any multi-word hard reg overlapping what we are to invalidate.
        !          8066:        Only look at constant in proper mode.
        !          8067:        (remove_invalid_refs): Use refers_to_regno_p.
        !          8068:        (invalidate_for_call): New function.
        !          8069:        (canon_hash, refers_to_mem_p, fold_rtx, equiv_constant): Look at
        !          8070:        constant in proper mode.
        !          8071:        (cse_rtx_addr_varies_p, cse_process_notes): Likewise.
        !          8072:        (exp_equiv_p): Likewise.
        !          8073:        Check reg_tick for all parts of multi-word hard register.
        !          8074:        (canon_reg): Don't use reg_rtx; get register from regno_reg_rtx or
        !          8075:        build hard reg in proper mode.
        !          8076:        (record_jump_equiv): Split into two pieces.
        !          8077:        (record_jump_cond): Second part of record_jump_equiv; make recursive
        !          8078:        call to some equivalences if args are SUBREGs.
        !          8079:        (cse_insn): Only replace register with equivalent if proper mode;
        !          8080:        don't use reg_rtx.
        !          8081:        Call invalidate_for_call.
        !          8082:        Don't avoid call to gen_lowpart for hard register.
        !          8083:        Make a SUBREG if gen_lowpart_if_possible fails for SUBREG
        !          8084:        assignment.
        !          8085:        (invalidate_from_clobbers): Update reg_tick of SP; invalidate
        !          8086:        REG entry in table, if present; use stack_pointer_rtx.
        !          8087:        (cse_main): Don't allocate reg_rtx.
        !          8088:        Initialize regs_invalidated_by_calls.
        !          8089:        (cse_basic_block): Allocate qty_mode.
        !          8090: 
        !          8091:        * rs6000.h (ADDITIONAL_REGISTER_NAMES): Add so we can disambiguate
        !          8092:        fixed and floating registers.
        !          8093: 
        !          8094:        * rs6000.md (ashrdi3): Reject all but constant shift counts.
        !          8095: 
        !          8096:        * jump.c (simplejump_p): Don't access PATTERN unless we know it is
        !          8097:        a JUMP_INSN.
        !          8098: 
        !          8099:        * combine.c (get_last_value): Don't do a recursive call for a 
        !          8100:        paradoxical SUBREG.
        !          8101: 
        !          8102:        * jump.c (jump_optimize): In "if (...) x = a; else x = b;", 
        !          8103:        don't move "x = b;" if it has non-trivial REG_NOTES.  Also, allow
        !          8104:        B to be any constant, not just a CONT_INT.
        !          8105: 
        !          8106:        * stor-layout.c (layout_type): Handle alignment for arrays the same
        !          8107:        as we do for records and unions.
        !          8108: 
        !          8109:        * calls.c (expand_call): Ignore `const' on void functions.
        !          8110: 
        !          8111:        * i860.c: Include recog.c.
        !          8112:        Remove many explicit declaration of vars from include files.
        !          8113:        (i860_compare_op[01]): Define these here.
        !          8114:        * i860.h (i860_compare_op[01]): Add declarations.
        !          8115:        * i860.md (compare, branch): Rework to use define_expand for cmpxx.
        !          8116:        Compare just saves operands in i860_compare_op[01].  Branch emits
        !          8117:        both insns using the saved operands.
        !          8118: 
        !          8119:        * i860.h (PREFERRED_RELOAD_CLASS): Handle FP registers and constants.
        !          8120:        (SECONDARY_INPUT_RELOAD_CLASS): We need a scratch register to copy
        !          8121:        an integer constant to a floating-point register.
        !          8122:        * i860.md (addsi3, subsi3): Allow use of floating registers.
        !          8123: 
        !          8124: Thu Jan 23 13:33:40 1992  Richard Stallman  ([email protected])
        !          8125: 
        !          8126:        * i386v4.h (CPP_PREDEFINES): Don't define X86.
        !          8127: 
        !          8128:        * c-lex.c (readescape): Warn for \a and \x if warn_traditional.
        !          8129:        Handle \v as vertical tab regardless of -traditional.
        !          8130: 
        !          8131:        * fixincludes, fixinc.svr4: Make LIB absolute, near the beginning.
        !          8132: 
        !          8133:        * fixincludes: Simplify egrep command while matching the same lines
        !          8134:        (plus occasional additional lines).
        !          8135: 
        !          8136:        * function.c (fixup_memory_subreg): New arg UNCRITICAL.  Calls changed.
        !          8137: 
        !          8138:        * gcc.c (process_command): Handle LPATH like LIBRARY_PATH.
        !          8139: 
        !          8140:        * svr3.h (ASM_LONG): Deleted.
        !          8141: 
        !          8142:        * gvarargs.h: Ignore _VA_LIST_ if _ANSI_H_;
        !          8143:        don't define _VA_LIST_ if already defined.
        !          8144: 
        !          8145: Thu Jan 23 09:10:52 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          8146: 
        !          8147:        * m88kluna.h (includes): Include aoutos.h.
        !          8148: 
        !          8149: Thu Jan 23 09:10:52 1992  Ron Guilmette  (rfg at ncd.com)
        !          8150: 
        !          8151:        * va-i860.h (__savereg): Fix typo.
        !          8152: 
        !          8153:        * i860.h (PREDICATE_CODES):  Added definition.
        !          8154: 
        !          8155:        * i386v4.h (ASM_FILE_START):  Definition added which generates
        !          8156:        .version directive.
        !          8157: 
        !          8158: Wed Jan 22 23:15:45 1992    (Eric Youngdale at [email protected])
        !          8159: 
        !          8160:        * make-cc1.com: Predefine symbols for "rename" and "bison"; always
        !          8161:        generate c-parse.h when generating c-parse.c.
        !          8162: 
        !          8163: Wed Jan 22 20:01:11 1992  Per Bothner  (bothner at cygnus.com)
        !          8164: 
        !          8165:        * sdbout.c (sdbout_record_type_name):  Use typedef names
        !          8166:        for C++.  (A kludge.)
        !          8167:        * sdbout.c (sdbout_one_type):  Emit base classes as
        !          8168:        dummy fields, just like dbxout.c when not using gdb extensions.
        !          8169: 
        !          8170: Wed Jan 22 20:01:11 1992  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)
        !          8171: 
        !          8172:        * fixincludes: Surround uses of ${INPUT} with "" instead of ''
        !          8173:        so that it will get expanded.
        !          8174: 
        !          8175:        * gcc.c (default_compilers): For c++, define __GNUG__ to 2, and
        !          8176:        pass -trigraphs.
        !          8177: 
        !          8178:        * cccp.1, cpp.1, gcc.1, g++.1: Delete more RCS variables.
        !          8179: 
        !          8180: Wed Jan 22 19:02:06 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          8181: 
        !          8182:        * combine.c (simplify_shift_const, case ASHIFT): If we will
        !          8183:        be suppressing a sign extension because the upper bits are
        !          8184:        already the same, verify that the operand is in the same
        !          8185:        mode as we will be doing the shift; don't ignore a SUBREG
        !          8186:        inside the inner SHIFT.
        !          8187: 
        !          8188: Wed Jan 22 09:25:07 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          8189: 
        !          8190:        * c-typeck.c (comp_target_types): Make decl static.
        !          8191:        Don't forget to return the value.
        !          8192:        (function_types_compatible_p, comptypes): Initialize `val'.
        !          8193: 
        !          8194: Tue Jan 21 13:29:50 1992  Richard Stallman  ([email protected])
        !          8195: 
        !          8196:        * cross-make (ALL): Override with definition it here.
        !          8197:        * configure: Don't edit its value explicitly here.
        !          8198: 
        !          8199:        * crtstuff.c (__do_global_ctors): Include DO_GLOBAL_CTORS_BODY
        !          8200:        in crtend.o, not in crtbegin.o.
        !          8201: 
        !          8202:        * svr3.h: Prepare to use with i386.
        !          8203:        (PCC_BITFIELD_TYPE_MATTERS): Definition deleted.
        !          8204:        This pertains to the individual cpu types.
        !          8205:        (ASM_SHORT, ASM_LONG, ASM_DOUBLE): Likewise.
        !          8206:        (DBX_DEBUGGING_INFO): Undef this.
        !          8207:        (DBX_REGISTER_NUMBER): Deleted the #undef.
        !          8208:        (STARTFILE_SPEC, LINK_SPEC, LIB_SPEC): Deleted.
        !          8209:        * i860v3.h (STARTFILE_SPEC, LINK_SPEC, LIB_SPEC): New definitions.
        !          8210: 
        !          8211:        * att386.h: Coexist with svr3.h.
        !          8212:        (ASM_FILE_START): Deleted.
        !          8213:        (ASM_OUTPUT_COMMON, ASM_OUTPUT_LOCAL): Likewise.
        !          8214:        (ASM_BYTE_OP, NO_DOLLAR_IN_LABEL): Likewise.
        !          8215:        (ASM_OUTPUT_LABELREF): Undef before defining.
        !          8216:        (ASM_FILE_START_1): Undef before defining.
        !          8217:        (EXTRA_SECTION_FUNCTIONS): Deleted.
        !          8218:        (BSS_SECTION_FUNCTION): New macro; defines bss_section.
        !          8219: 
        !          8220:        * i386v.h, aix386.h: Include svr3.h.
        !          8221:        (SCCS_DIRECTIVE, ASM_OUTPUT_IDENT): Deleted.
        !          8222:        (TARGET_MEM_FUNCTIONS): Deleted.
        !          8223:        (SDB_DEBUGGING_INFO, DBX_DEBUGGING_INFO): Deleted.
        !          8224: 
        !          8225:        * Support constructors and destructors on svr3.  From james@bigtex.
        !          8226:        * i386v.h, aix386.h (STARTFILE_SPEC): Use crtbegin.o after crt1.o.
        !          8227:        (LIB_SPEC): Use crtend.o before crtn.o.
        !          8228:        (CTORS_SECTION_ASM_OP, ASM_OUTPUT_CONSTRUCTOR): New macros.
        !          8229:        (INIT_SECTION_ASM_OP): Likewise.
        !          8230:        * svr3.h (DTORS_SECTION_ASM_OP): New macros.
        !          8231:        (DO_GLOBAL_CTORS_BODY): New macro.
        !          8232:        (EXTRA_SECTIONS,EXTRA_SECTION_FUNCTIONS): Use .init and .fini
        !          8233:        sections in addition to .bss.
        !          8234:        ({INIT,FINI}_SECTION_FUNCTION): New macros for *_section functions.
        !          8235:        ({CTORS,DTORS}_SECTION_FUNCTION): Macros deleted.
        !          8236:        (ASM_OUTPUT_CONSTRUCTOR): Deleted.
        !          8237:        (ASM_OUTPUT_DESTRUCTOR): Use ASM_LONG.
        !          8238:        (INT_ASM_OP): Deleted.
        !          8239: 
        !          8240:        * c-typeck.c (default_conversion): Don't use initial value if BLKmode.
        !          8241:        If do use the initial value, update `type'.
        !          8242: 
        !          8243:        * arm.h (STRUCTURE_SIZE_BOUNDARY): New definition.
        !          8244: 
        !          8245:        * stor-layout.c (layout_type): Ignore MAX_FIXED_MODE_SIZE for integers.
        !          8246: 
        !          8247:        * ultrix.h (SIZE_TYPE): Use `unsigned int'.
        !          8248:        * Makefile.in (install-common): Add missing -f in rm.
        !          8249:        (install-fixincludes): Install the README file.
        !          8250: 
        !          8251:        * fixincludes: Don't match on size_t, etc., since we don't actually
        !          8252:        change them.
        !          8253: 
        !          8254: Mon Jan 20 23:22:45 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          8255: 
        !          8256:        * cp-call.c (ideal_candidate): Don't see two functions as ambiguous
        !          8257:        if one is argument-by-argument equivalent or better than another.
        !          8258: 
        !          8259: Mon Jan 20 14:08:06 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          8260: 
        !          8261:        * toplev.c (strip_off_ending): Add ".ada".
        !          8262: 
        !          8263: Mon Jan 20 13:53:15 1992  Richard Stallman  ([email protected])
        !          8264: 
        !          8265:        * protoize.c (xfree): No longer static.
        !          8266: 
        !          8267:        * gbl-ctors.h (DO_GLOBAL_CTORS_BODY): Allow tm.h to override.
        !          8268: 
        !          8269:        * final.c (leaf_renumber_regs_insn): Do just the pattern of an insn.
        !          8270: 
        !          8271:        * pyr.h (PCC_BITFIELD_TYPE_MATTERS): Defined.
        !          8272:        (STRUCTURE_SIZE_BOUNDARY): Deleted.
        !          8273: 
        !          8274:        * mips.c: Clean up spacing around square brackets.
        !          8275: 
        !          8276:        * c-typeck.c (convert_arguments):
        !          8277:        Get rid of feature to convert to a tagless union type.
        !          8278:        (common_type): Add pedantic warning.
        !          8279:        (comptypes, function_types_compatible_p): Return 2 meaning warn.
        !          8280:        (comp_target_types): Do the warning here.
        !          8281:        (type_lists_compatible_p): New function.
        !          8282: 
        !          8283: Sun Jan 19 17:32:19 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          8284: 
        !          8285:        * reload1.c (emit_reload_insns): Fix typos when checking for secondary
        !          8286:        icode.
        !          8287: 
        !          8288: Sun Jan 19 15:28:53 1992  Richard Stallman  ([email protected])
        !          8289: 
        !          8290:        * global-alloc.c (global_alloc): If LEAF_REGISTERS, those are the
        !          8291:        regs that cost nothing to save, for setting regs_already_used.
        !          8292: 
        !          8293:        * expr.c (expand_builtin): Preserve function value reg
        !          8294:        around the call to __builtin_saveregs.
        !          8295: 
        !          8296:        * configure (mips-sgi-irix4*, mips-sgi-irix*): Set install_with_cp.
        !          8297: 
        !          8298:        * c-decl.c (start_function):
        !          8299:        Check properly for `static' function in handling -Wmissing-prototypes.
        !          8300: 
        !          8301:        * libgcc2.c (__main): Omit this fn if INIT_SECTION_ASM_OP.
        !          8302: 
        !          8303: Sun Jan 19 13:23:13 1992  Fred Fish  (fnf at sunfish)
        !          8304: 
        !          8305:        * amix.h (ASM_OUTPUT_ASCII):  Override version in svr4.h.
        !          8306: 
        !          8307: Sun Jan 19 13:16:56 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          8308: 
        !          8309:        * cp-search.c (lookup_field): Accept IS_AGGR_TYPE_CODE, not
        !          8310:        just == RECORD_TYPE.
        !          8311: 
        !          8312:        * cp-class.c (finish_struct): Clear a tentative setting of
        !          8313:        DECL_BIT_FIELD.
        !          8314: 
        !          8315:        * cp-decl.c (start_decl): Don't call `pushclass' for incomplete
        !          8316:        CONTEXT.
        !          8317: 
        !          8318:        * cp-typeck.c (comp_target_types): Call `comp_target_parms' with
        !          8319:        STRICT == 0, not -1.
        !          8320:        (build_conditional_expr): Check that the target types of TYPE1 and
        !          8321:        TYPE2 are aggr type before calling `common_base_type'.
        !          8322: 
        !          8323: Sun Jan 19 04:10:16 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          8324: 
        !          8325:        * configure: Fix typo inserting INSTALL=cp into makefile.
        !          8326: 
        !          8327: Sat Jan 18 12:06:58 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          8328: 
        !          8329:        * cp-lex.c (build_with_cleanup): Delete obsolete function.
        !          8330:        * cp-tree.c (break_out_cleanups): New function.
        !          8331:        * cp-decl.c (cplus_expand_expr): Call `break_out_cleanups'.
        !          8332:        * cp-typeck.c (build_compound_expr): Ditto.
        !          8333: 
        !          8334:        * cp-call.c (convert_harshness): Make any inheritance relationship
        !          8335:        preferable to a void* conversion.
        !          8336:        * cp-tree.h (CLASSTYPE_MAX_DEPTH): New macro.
        !          8337:        * cp-class.c (finish_struct_bits): Set CLASSTYPE_MAX_DEPTH.
        !          8338: 
        !          8339:        * cp-cvt.c (build_up_reference): Don't return in ARRAY_REF case,
        !          8340:        since we may need to adjust the return value for complex
        !          8341:        inheritance.
        !          8342: 
        !          8343:        * cp-decl2.c (lang_f_options): Add recognizers for -f{no-}builtin,
        !          8344:        -f{no-}ident, and -ansi.  Also, remove unnecessary "no-*" forms.
        !          8345: 
        !          8346:        * cp-init.c (emit_base_init): If PEDANTIC, don't let base
        !          8347:        initializers leak up the hierarchy.
        !          8348: 
        !          8349:        * cp-parse.y (structsp): Disable gratuitous error message.
        !          8350: 
        !          8351:        * cp-call.c (convert_harshness): Don't overlook PENALTY when
        !          8352:        signed/unsigned differences are noted (in both POINTER_TYPE and
        !          8353:        REFERENCE_TYPE cases).
        !          8354: 
        !          8355:        * toplev.c (strip_off_ending): Grok ".ii" endings (C++ preprocessed
        !          8356:        files).
        !          8357: 
        !          8358:        * cp-typeck.c (build_component_ref): Add special handler when
        !          8359:        COMPONENT is the CLASSTYPE_VFIELD name for BASETYPE.
        !          8360: 
        !          8361: Sat Jan 18 08:29:58 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          8362: 
        !          8363:        * cse.c (cse_insn): Don't make constant pool entries in MODE_CC modes.
        !          8364: 
        !          8365: Sat Jan 18 00:28:48 1992  Richard Stallman  ([email protected])
        !          8366: 
        !          8367:        * Makefile.in (install-common): Fix typo installing gcc.
        !          8368:        
        !          8369:        * crds.h, isi.h, newpbb.h, tti68k.h: Add #error because -m68000
        !          8370:        will cause a crash (I think), to ask people what to do.
        !          8371: 
        !          8372:        * gmicro.h (ASM_FILE_START): Don't do anything.
        !          8373:        (TARGET_DEFAULT): Turn on the bitfield flag.
        !          8374:        (TARGET_SWITCHES): Get rid of the bitfield options.
        !          8375: 
        !          8376:        * c-lex.c (readescape): No warning for \?.
        !          8377: 
        !          8378:        * protoize.c (munge_compile_params): Fix cast that sets compile_params.
        !          8379:        (xmalloc, xrealloc): No longer static.
        !          8380:        * Makefile.in (protoize, unprotoize): Add LIBDEPS as deps.
        !          8381: 
        !          8382:        * va-i860.h (va_arg): Use __extension__ to suppress pedantic warning.
        !          8383:        * va-sparc.h, va-spur.h, va-pyr.h: Likewise.
        !          8384: 
        !          8385:        * x-irix4.h: New file.
        !          8386:        * config.sub: Don't convert irix to sysv.
        !          8387:        * configure (mips-sgi-irix4*): New configuration.
        !          8388:        (mips-sgi-irix*): Renamed from mips-sgi-sysv*.
        !          8389: 
        !          8390:        * gcc.c (process_command):
        !          8391:        Handle the standard_exec_prefix* before the md_*_prefix.
        !          8392: 
        !          8393:        * i386.h, ns32k.h (PCC_BITFIELD_TYPE_MATTERS): Defined.
        !          8394: 
        !          8395:        * Makefile.in (libgcc1.null): Depend on GCC_PASSES.
        !          8396: 
        !          8397:        * cccp.c (lookup_import, add_import): VMS kludges so they compile.
        !          8398:        (hack_vms_include_specification): Add forward declaration.
        !          8399: 
        !          8400:        * stor-layout.c (layout_record): Handle BITFIELD_NBYTES_LIMITED
        !          8401:        just like one of the things done for PCC_BITFIELD_TYPE_MATTERS.
        !          8402: 
        !          8403:        * x-next, x-i386mach: Deleted.
        !          8404:        * t-libc-ok: New file.  Define just LIBGCC1.
        !          8405:        * configure (i386-*-mach, m68k-next-*): Use t-libc-ok.
        !          8406: 
        !          8407:        * t-svr4 (FIXINCLUDES): Defined.
        !          8408:        * t-m88kv4 (FIXINCLUDES): Defined.
        !          8409:        * t-svr3 (EXTRA_PARTS): Defined.
        !          8410:        * t-i386sco (EXTRA_PARTS): Defined.
        !          8411: 
        !          8412:        * configure (sparc-*-sysv4*): New alternative.
        !          8413: 
        !          8414:        * configure (install_with_cp): New flag an alternative can set.
        !          8415:        If host sets it, add INSTALL=cp to Makefile.
        !          8416:        Set this for any system V, and for m68k-crds-unos.
        !          8417: 
        !          8418: Sat Jan 18 23:15:08 1992  Ron Guilmette  (rfg at ncd.com)
        !          8419: 
        !          8420:        * va-i860.h (va_list): Made __reg_base field type long* to avoid
        !          8421:        compilation errors.
        !          8422:        (__savereg): Add explicit cast to (__va_saved_regs *).
        !          8423: 
        !          8424: Fri Jan 17 15:09:34 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          8425: 
        !          8426:        * i386.h (FUNCTION_BOUNDARY): Do larger alignments for i486.
        !          8427:        (ASM_OUTPUT_ALIGN_CODE): Same here.
        !          8428:        (ASM_OUTPUT_LOOP_ALIGN): But not here - do word aligns as before.
        !          8429: 
        !          8430:        (enum reg_class): Delete classes ADREG and BREG - neither used nor
        !          8431:        useful.  Add classes FP_TOP_REG and FP_SECOND_REG.
        !          8432:        (REG_CLASS_NAMES): Likewise.
        !          8433:        (REG_CLASS_CONTENTS): Likewise.
        !          8434:        (REGNO_REG_CLASS): Reflect that change.
        !          8435:        (REG_CLASS_FROM_LETTER): Likewise.  Add "t" and "u" constraints.
        !          8436:        (CLASS_MAX_NREGS): New classes use only 1 hard reg for any mode.
        !          8437: 
        !          8438:        (CONST_OK_LETTER_P): Document uses of letters.
        !          8439: 
        !          8440:        * reg-stack.c: Add comments describing rules for asm statements
        !          8441:        involving stack-like regs.
        !          8442:        (asm_regs): Delete unused variable.
        !          8443:        (fatal_for_asm): Delete unused function.
        !          8444: 
        !          8445:        (get_asm_operand_lengths): New function.
        !          8446:        (constrain_asm_operands): New function.  Like constrain_operands,
        !          8447:        but records some information about the matched alternative.
        !          8448: 
        !          8449:        (record_asm_reg_life): New function.
        !          8450:        (record_reg_life): If INSN is an asm statement, decode operands
        !          8451:        and pass to record_asm_reg_life.
        !          8452:        (record_reg_life_pat): Abort if any asm is seen here.
        !          8453: 
        !          8454:        (subst_asm_stack_regs): New function.
        !          8455:        (subst_stack_regs): If INSN is an asm statement, decode operands
        !          8456:        and pass to subst_asm_stack_regs.  When handling REG_UNUSED notes,
        !          8457:        emit the pops in the right order.
        !          8458: 
        !          8459:        (change_stack): New argument to insert any new insns before INSN
        !          8460:        instead of after.  All callers changed.
        !          8461: 
        !          8462:        (emit_swap_insn): Abort if the reg is not found in REGSTACK.
        !          8463: 
        !          8464:        * Makefile.in (reg-stack.o): Depends on insn-config.h.
        !          8465: 
        !          8466: Fri Jan 17 16:38:32 1992  Richard Stallman  ([email protected])
        !          8467: 
        !          8468:        * toplev.c, flags.h (in_system_header): Declare here.
        !          8469:        * c-lex.c, cp-lex.c (in_system_header): Not here.
        !          8470:        * toplev.c (rest_of_compilation): Don't warn of unused static function
        !          8471:        if definition is in a system header.
        !          8472: 
        !          8473:        * gcc.c (do_spec_1): Add missing arg in recursive call.
        !          8474:        (link_command_spec): Don't pass -s, -S, -u*, -X, -Y*.
        !          8475: 
        !          8476: Fri Jan 17 12:51:28 1992  Jim Wilson  (wilson at cygnus.com)
        !          8477: 
        !          8478:        From Tiemann:
        !          8479:        * rtlanal.c (reg_set_between_p): Call `reg_set_p' with INSN, not the
        !          8480:        body of INSN so that CALL_INSNs are properly handled.
        !          8481:        * explow.c (find_next_ref): Ditto.
        !          8482: 
        !          8483:        * hp800.h, hp800.md: Delete RCS Header variables.
        !          8484: 
        !          8485:        * reg-stack.c (replace_reg): Change `abort' to `abort ()'.
        !          8486: 
        !          8487: Fri Jan 17 14:30:14 1992  Michael Meissner  (meissner at osf.org)
        !          8488: 
        !          8489:        * caller-save.c (insert_save_restore): Don't pass a CODE_LABEL to
        !          8490:        reg_mentioned_p when the machine has a condition code, since
        !          8491:        CODE_LABEL's don't have the same format as normal INSN's do.
        !          8492: 
        !          8493: Fri Jan 17 13:24:33 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          8494: 
        !          8495:        * Makefile.in (unprotoize.o): Use the rm -f option.
        !          8496: 
        !          8497:        * cp-lex.c (check_newline): Define `used_up' as in c-lex.c.
        !          8498:        (in_system_header): Define as in c-lex.c.
        !          8499: 
        !          8500: Fri Jan 17 08:14:04 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          8501: 
        !          8502:        * reorg.c (delete_from_delay_slot): Pass correct length to
        !          8503:        emit_delay_sequence.
        !          8504: 
        !          8505:        * genattrtab.c (substitute_address): Handle IF_THEN_ELSE in addition
        !          8506:        to COND.
        !          8507: 
        !          8508:        * expr.c (expand_builtin, case BUILT_IN_STRLEN): Correct args in
        !          8509:        expand_expr call.
        !          8510: 
        !          8511: Fri Jan 17 17:33:40 1992  James Van Artsdalen  (james@raid)
        !          8512: 
        !          8513:        * x-i386v4 (CCLIBFLAGS): Delete macro.
        !          8514:        (GCC-CFLAGS): Delete macro.  Prevented Makefile.in from working.
        !          8515: 
        !          8516: Thu Jan 16 17:03:27 1992  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)
        !          8517: 
        !          8518:        * Makefile.in (cleanconfig): Also delete tconfig.h.
        !          8519: 
        !          8520:        * varasm.c (assemble_external): Only call ASM_OUTPUT_EXTERNAL once
        !          8521:        for each symbol.
        !          8522:        (assemble_external_libcall): Fix minor typo in spacing.
        !          8523: 
        !          8524:        * toplev.c (main): Force error if invalid -W option is used.
        !          8525: 
        !          8526: Thu Jan 16 13:35:13 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          8527: 
        !          8528:        * m88kdgux.h (CPP_PREDEFINES): Added __CLASSIFY_TYPE__ back and
        !          8529:        noted when it would be useful.
        !          8530: 
        !          8531:        * m88k.h (ASM_FILE_END, ASM_OUTPUT_ASCII): Override svr4.h.
        !          8532: 
        !          8533: Thu Jan 16 12:37:16 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)
        !          8534: 
        !          8535:        * svr4.h (SVR4): Add this back.
        !          8536: 
        !          8537:        * cccp.c (lookup_import): Use bcmp to compare inodes.
        !          8538: 
        !          8539:        * cccp.c (main): Handle -idirafter option.
        !          8540: 
        !          8541:        * m68kv4.h, m88kv4.h, i386v4.h, sparcv4.h, i860v4.h (CPP_PREDEFINES): 
        !          8542:        Add __svr4__ in case user programs want to distinguish.
        !          8543: 
        !          8544:        * cp-lex.c (check_newline): Changes like Jan 12 changes in c-lex.c.
        !          8545: 
        !          8546:        * Makefile.in (install-fixincludes): Renamed from `includes'.
        !          8547:        Move comments so some shells are happier.  Dep. on install-headers.
        !          8548: 
        !          8549:        * m88kdgux.h (CPP_PREDEFINES): Add __svr4__.  Remove __CLASSIFY_TYPE__.
        !          8550:        Add some assertions.
        !          8551: 
        !          8552:        * c-decl.c (init_decl_processing): Don't give arg type for abort, etc.
        !          8553:        Always declare strlen, etc., so -O doesn't alter the warnings.
        !          8554:        * expr.c (expand_builtin): Open-code str* or mem* or ffs if -O.
        !          8555: 
        !          8556:        * c-decl.c (start_function): Fix backwards test for -W* options.
        !          8557: 
        !          8558:        * protoize.c (GUESSPATHLEN): Treat POSIX like USG--and use just 200.
        !          8559: 
        !          8560:        * cccp.c (deps_output): Break line iff string is empty.
        !          8561:        (do_include): Fix up the deps_output calls.
        !          8562: 
        !          8563:        * vax.c (print_operand_address): Handle form index + (reg+offset).
        !          8564: 
        !          8565:        * m88k.h (TARGET_VERSION): Don't use __DATE__.
        !          8566: 
        !          8567:        * gcc.c (default_compilers): Typos in c++-cpp-output case.
        !          8568: 
        !          8569: Thu Jan 16 12:25:51 1992  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)
        !          8570: 
        !          8571:        * loop.c (get_condition): In HAVE_cc0 code, generate a zero with
        !          8572:        CONST0_RTX instead of just using const0_rtx.
        !          8573: 
        !          8574:        * cse.c (cse_isnsn): A CALL_INSN clobbers all fixed regs except
        !          8575:        for ap, fp, and sp.
        !          8576: 
        !          8577: Thu Jan 16 08:03:40 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          8578:        
        !          8579:        * c-decl.c (finish_enum): Compute the precision properly if the
        !          8580:        maximum value is negative.
        !          8581: 
        !          8582: Thu Jan 16 07:40:29 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          8583: 
        !          8584:        * reorg.c (try_merge_delay_insns, fill_slots_from_thread): Have
        !          8585:        update_block put the phantom insn before THREAD.
        !          8586:        (update_block): Update block status if WHERE, not INSN, is block head.
        !          8587: 
        !          8588: Thu Jan 16 00:28:14 1992  Ron Guilmette  (rfg ay ncd.com)
        !          8589: 
        !          8590:        * i860.c (output_fp_move_double):  Fixed typo.
        !          8591: 
        !          8592:        * protoize.c (GUESSPATHLEN, pointer_type, const_pointer_type):
        !          8593:        moved definitions declarations out of conditional region.
        !          8594:        (string_list_cons, shortpath, munge_compile_params):  Added casts.
        !          8595:        (find_extern_def):  Fixed string literal to avoid trigraph.
        !          8596:        (find_rightmost_formals_list):  Fixed to avoid unreached code warnings.
        !          8597: 
        !          8598:        * svr4.h (ASM_OUTPUT_ASCII):  Fixed typo.
        !          8599: 
        !          8600: Wed Jan 15 21:58:01 1992  Jeffrey A Law  (law at b117b.super.org)
        !          8601: 
        !          8602:        * sparc.h (SELECT_RTX_SECTION): When generating PIC, place symbolic
        !          8603:        operands in the data section.
        !          8604: 
        !          8605: Wed Jan 15 21:45:09 1992  Michael Meissner  (meissner at osf.org)
        !          8606: 
        !          8607:        * collect2.c (main): Pass any -b<xx>, -B<xx>, -m<xx>, -f<xx>, and
        !          8608:        -V<xx> options to gcc instead of the linker, in order to allow
        !          8609:        target switches that affect the size of pointers and search paths to
        !          8610:        be passed through.
        !          8611:        (main, choose_temp_base): Use TMPDIR environment variable, and the
        !          8612:        P_tmpdir macro if defined to locate directory to put temp files.
        !          8613:        (whole file): Reorganize so that all of the OSF/rose stuff goes at
        !          8614:        the end of the file, rather than being scattered throughout.
        !          8615:        (main, scan_prog_file): Invoke scan_prog_file twice, once on each
        !          8616:        output of ld.
        !          8617:        (scan_prog_file, read_file, write_file):  On the second invocation,
        !          8618:        rewrite the object file in place, adding a load command to put
        !          8619:        __main in the list of initializer functions.  This allows users
        !          8620:        to put constructors and destructors into shared libraries.
        !          8621:        (scan_prog_file): Move debug stuff and error routines to separate
        !          8622:        functions.
        !          8623: 
        !          8624: Wed Jan 15 17:59:02 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          8625: 
        !          8626:        * combine.c (can_combine_p): Don't combine if DEST is still a field
        !          8627:        assignment after we've tried to expand it.
        !          8628: 
        !          8629: Wed Jan 15 16:01:13 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          8630: 
        !          8631:        * regclass.c (fix_register): Don't match a null register name.
        !          8632:        * varasm.c (decode_reg_name): Likewise.
        !          8633: 
        !          8634:        * i386.h (HI_REGISTER_NAMES): Give the eliminable arg pointer a
        !          8635:        null name.
        !          8636: 
        !          8637: Wed Jan 15 13:40:50 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)
        !          8638: 
        !          8639:        * gcc.c (default_compilers): Pass -lang-asm, not -lang-asmc, to cpp.
        !          8640: 
        !          8641:        * gcc.c (process_command): Don't dump md_exec_prefix in specs.
        !          8642:        Use the md_... prefixes only if no -b.
        !          8643: 
        !          8644: Wed Jan 15 13:35:09 1992  Ron Guilmette  (rfg at ncd.com)
        !          8645: 
        !          8646:        * i386v4.h (RETURN_IN_MEMORY):  Definition added.
        !          8647:        (CPP_PREDEFINES):  Added -DX86 (needed for some system headers).
        !          8648:        (ASM_OUTPUT_DWARF_STRING):  Deleted.
        !          8649:        (ASM_OUTPUT_ASCII):  Added specialized definition for i386/svr4.
        !          8650: 
        !          8651:        * svr4.h (SVR4):  Deleted useless define.
        !          8652:        (ASM_FILE_END):  Added definition.
        !          8653:        (ESCAPES, STRING_LIMIT, STRING_ASM_OP, ASM_OUTPUT_LIMITED_STRING):
        !          8654:        (ASM_OUTPUT_ASCII):  Generic svr4 definitions added.
        !          8655: 
        !          8656:        * m68kv4.h (CPP_PREDEFINES):  Don't define SVR4.
        !          8657:        * sparcv4.h (CPP_PREDEFINES):  Don't define SVR4.
        !          8658:        (ASM_OUTPUT_ASCII): Deleted obsolete definition.
        !          8659: 
        !          8660:        * xm-svr4.h (SVR4):  Removed useless definition.
        !          8661:        (POSIX):  Added definition for protoize.c.
        !          8662: 
        !          8663:        * i860b.h (ASCII_DATA_ASM_OP, ASM_OUTPUT_ASCII): Moved from i860.h.
        !          8664:        * i860v3.h (ASCII_DATA_ASM_OP):  Added OS-specific definition.
        !          8665:        * i860v4.h (ASCII_DATA_ASM_OP, ASM_OUTPUT_ASCII):
        !          8666:        Deleted (now in svr4.h).
        !          8667: 
        !          8668:        * fixinc.svr4:  Replaced all occurances of {1,\} in sed command
        !          8669:        string with functional equivalents (to avoid bogus results).
        !          8670: 
        !          8671:        * c-lex.c (readescape): Pass thru escaped x, a, and v if -traditional.
        !          8672:        (readescape): Pedantic warning for \?, \(, \{, and \[.
        !          8673: 
        !          8674:        * dwarfout.c: Updated copyright.
        !          8675:        (fundamental_type_code):  Abort for all non-fundamental types.
        !          8676:        (type_is_fundamental):  Return 0 for all non-fundamental types.
        !          8677:        (containing_type_attribute, output_ptr_to_mbr_type_die): New functions.
        !          8678:        (output_pointer_type_die, output_reference_type_die):  Added calls to
        !          8679:        equate_type_number_to_die_number.
        !          8680:        (output_type):  Handle OFFSET_TYPE correctly.
        !          8681:        (output_type):  Ignore LANG_TYPE (for now).
        !          8682: 
        !          8683: Wed Jan 15 09:30:08 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          8684: 
        !          8685:        * All cp-* files: Remove calls to `cleanup_after_call'.
        !          8686: 
        !          8687:        * cp-method.c (fndecl_as_string): Add a missing space when printing
        !          8688:        the return type.
        !          8689: 
        !          8690:        * cp-typeck.c (build_modify_expr): Treat arrays specially in both
        !          8691:        INIT_EXPR and NOP_EXPR cases.  Also, if we take the address NEWRHS
        !          8692:        when it's not a SAVE_EXPR, build a new NEWRHS using that address. 
        !          8693:        * cp-tree.c (lvalue_p): Handle WITH_CLEANUP_EXPR case.
        !          8694: 
        !          8695:        * cp-decl.c (grokvardecl): Don't get tripped up by static class
        !          8696:        members of incomplete type.
        !          8697: 
        !          8698: Wed Jan 15 09:12:51 1992  Jeffrey A. Law  (law at wombat.gnu.ai.mit.edu)
        !          8699: 
        !          8700:        * m68k.c (legitimize_pic_address): Re-enable code which was
        !          8701:        mistakenly #ifdef'd out.
        !          8702: 
        !          8703: Wed Jan 15 08:12:18 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          8704: 
        !          8705:        * reload.c (find_reloads): Check for insn not recognized.
        !          8706: 
        !          8707:        * caller-save.c (reg_{save,restore}_code): New variables.
        !          8708:        (init_caller_save): Set them.
        !          8709:        (insert_save_restore): Just make SET for pattern of insn and set
        !          8710:        code from reg_{save,restore}_code.
        !          8711:        (save_call_clobbered_regs): Put restore insns before JUMP_INSN that
        !          8712:        ends basic block, but after any other insn that ends the block.
        !          8713: 
        !          8714:        * sdbout.c (sdbout_symbol): Treat (mem (reg SP)) the same
        !          8715:        as (mem (reg FP)).
        !          8716: 
        !          8717:        * reorg.c (mark_referenced_resources): Fix typo in last change.
        !          8718:        (emit_delay_sequences): Update chain correctly when previous or
        !          8719:        next insn is also a SEQUENCE.
        !          8720: 
        !          8721: Wed Jan 15 08:10:29 1992  Chris Smith  (cks at bach.convex.com)
        !          8722: 
        !          8723:        * t-convex: Use collect2 to link.
        !          8724:        * convex.h: remove assembly output defines for old collect2.
        !          8725:        * convex.h: define vprintf and wait macros for pcc mode boot of
        !          8726:        collect2.
        !          8727: 
        !          8728:        * convex.h (ASM_OUTPUT_DOUBLE_INT): define.
        !          8729: 
        !          8730:        * convex.h (DEFAULT_GDB_EXTENSIONS): define as 0 until GDB version 4
        !          8731:        port is available.
        !          8732: 
        !          8733:        * convex.c (ap_reload_needed): Fix comment.
        !          8734: 
        !          8735: Wed Jan 15 07:08:25 1992  Tom Wood  (wood at dg-rtp.dg.com)
        !          8736: 
        !          8737:        * m88k.h (CONST_SECTION_FUNCTION): Trivial definition for targets
        !          8738:        not based on svr[34].h (m88k-luna).
        !          8739: 
        !          8740:        * m88k.h (PREDICATE_CODES): Use it.
        !          8741: 
        !          8742:        * m88k.md (casesi_enter): Don't use bsr.n with -fno-delayed-branch.
        !          8743:        * m88k.h (ASM_OUTPUT_CASE_END): The lda goes here when bsr is used.
        !          8744: 
        !          8745:        * m88k.c (legitimize_address): When converting a symbol_ref for
        !          8746:        PIC, add a REG_EQUAL note.
        !          8747: 
        !          8748: Wed Jan 15 06:22:34 1992  Michael Meissner  (meissner at osf.org)
        !          8749: 
        !          8750:        * mips.h (MIPS_VERSION): Bump Meissner version # to 8.
        !          8751:        (fcmp_op): Add function declaration.
        !          8752:        (TARGET_FLOAT64): Support for -mfp64 switch to support the R4000 FR
        !          8753:        psw bit, which doubles the number of floating point registers.
        !          8754:        (TARGET_SWITCHES): Likewise.
        !          8755:        (HARD_REGNO_NREGS): Likewise.
        !          8756:        (CLASS_FCMP_OP): New bit for classifing floating point compares.
        !          8757:        (PREDICATE_CODES): Add cmp2_op and fcmp_op support.
        !          8758: 
        !          8759:        * mips.c (various): Move extern declarations from inside of
        !          8760:        functions to outside all functions.
        !          8761:        (fcmp_op): Match comparison operators for floating point.
        !          8762:        (mips_move_2words): Add -mfp64 support.
        !          8763:        (override_options): Likewise.
        !          8764:        (compute_frame_size): Likewise.
        !          8765:        (override_options): Set up for fcmp_op.
        !          8766:        (gen_conditional_branch): Redo floating point compares/branches, so
        !          8767:        that it is like the rest of the compiler expects -- set cc0 to a
        !          8768:        compare operator, instead of the exact test required, and put the
        !          8769:        smarts in the branch operators to generate both the test and the
        !          8770:        branch.
        !          8771: 
        !          8772:        * mips.md (cmpdf_eq, cmpdf_lt, cmpdf_le): Delete.
        !          8773:        (cmpsf_eq, cmpsf_lt, cmpsf_le): Delete.
        !          8774:        (cmpdf_internal): New define insn to match FP compares.
        !          8775:        (cmpsf_internal): Likewise.
        !          8776:        (branch_fp_true1, branch_fp_true2): Likewise.
        !          8777:        (branch_fp_false1, branch_fp_false2): Likewise.
        !          8778:        (branch_fp_true, branch_fp_false): New define_insns to match the
        !          8779:        branch part of FP compares.
        !          8780: 
        !          8781: Wed Jan 15 01:42:39 1992  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)
        !          8782: 
        !          8783:        * unroll.c (copy_loop_body): New parameter copy_notes_from, to
        !          8784:        correct problem with bad debug info generated for preconditioned
        !          8785:        loops.
        !          8786:        (unroll_loops): Fix calls of copy_loop_body to pass new parameter.
        !          8787: 
        !          8788: Wed Jan 15 01:01:39 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)
        !          8789: 
        !          8790:        * gcc.c (main): Don't use TARGET_VERSION.
        !          8791:        (endfile_spec, switches_need_spaces): New vars, initted from macros.
        !          8792:        (set_spec, process_command): Read and write those vars.
        !          8793:        (do_spec_1, process_command): Use the new vars, not the macros.
        !          8794:        (SWITCHES_NEED_SPACES): New default macro definition.
        !          8795: 
        !          8796:        * Makefile.in (install-common): Install driver as gcc-$(target).
        !          8797: 
        !          8798:        * gstddef.h (wchar_t): Check for _T_WCHAR.
        !          8799: 
        !          8800:        * stmt.c (pushcase, pushcase_range): Return 5 if jump into stack level.
        !          8801:        * c-parse.y, objc-parse.y (stmt): Print error msg for that.
        !          8802:        * cp-parse.y: Likewise.
        !          8803: 
        !          8804: Tue Jan 14 23:25:37 1992  Ron Guilmette  (rfg at ncd.com)
        !          8805: 
        !          8806:        * dwarfout.c: Include <string.h> if USG *or* POSIX.
        !          8807:        (TREE_UID): Deleted.
        !          8808:        (current_funcdef_number): Replacement for TREE_UID.
        !          8809:        (dwarfout_file_scope_decl):  Increment
        !          8810:        current_funcdef_number after each funnction definition is processed.
        !          8811:        (pending_sibling_stack_depth): Renamed globally to pending_siblings.
        !          8812:        (pending_sibling_stack_size): Renamed to pending_siblings_allocated.
        !          8813:        (PENDING_SIBLING_STACK_INCREMENT): Renamed PENDING_SIBLINGS_INCREMENT.
        !          8814:        (pending_types_list, pending_types_allocated, pending_types,
        !          8815:        PENDING_TYPES_INCREMENT, fake_containing_scope): New vars/macros.
        !          8816: 
        !          8817:        * dwarfout.c (total_ft_entries): Renamed to ft_entries_allocated.
        !          8818:        (valid_ft_entries): Renamed to ft_entries.
        !          8819:        (FT_ENTRIES_INCREMENT):  Definition added.
        !          8820:        (lookup_filename):  Expand filename table (when needed)
        !          8821:        by adding FT_ENTRIES_INCREMENT more table elements rather than
        !          8822:        doubling current size.
        !          8823:        (dwarfout_init):  Allocate initial filename table.
        !          8824: 
        !          8825:        * dwarfout.c (INSN_LABEL_FMT, FUNC_END_LABEL_FMT): Use decimal format.
        !          8826: 
        !          8827:        * dwarfout.c (member_attribute):  Rewritten for proper C++ support.
        !          8828:        (output_array_type_die, output_set_type_die, output_entry_point_die,
        !          8829:        output_enumeration_type_die, output_global_subroutine_die,
        !          8830:        output_global_variable_die, output_inline_subroutine_die,
        !          8831:        output_local_variable_die, output_member_die, output_pointer_type_die,
        !          8832:        output_reference_type_die, output_string_type_die,
        !          8833:        output_structure_type_die, output_local_subroutine_die,
        !          8834:        output_subroutine_type_die, output_typedef_die, output_union_type_die):
        !          8835:        Added calls to member_attribute (for C++).
        !          8836: 
        !          8837:        * dwarfout.c (inline_attribute):  Test for TREE_INLINE in here.
        !          8838:        (output_global_subroutine_die, output_local_subroutine_die):
        !          8839:        Don't test for TREE_INLINE here.
        !          8840: 
        !          8841:        * dwarfout.c (output_formal_types):  Fixed to handle METHOD_TYPE
        !          8842:        nodes and to output all related type DIEs last (for SDB).
        !          8843:        (type_ok_for_scope, output_pending_types_for_scope, pend_type):
        !          8844:        Functions added to support C++.
        !          8845:        (output_type, output_decl):  Added `containing_scope'
        !          8846:        parameter to handle C++ nested types.
        !          8847:        (output_type):  Don't output the type unless it's OK
        !          8848:        for the current DIE chain (i.e. unless it's OK for the current scope).
        !          8849:        (output_type):  Output completed non-global tagged types
        !          8850:        right away even if not finalizing.
        !          8851:        (output_type):  Use correct method to get head of chain
        !          8852:        of C++ function members.
        !          8853:        (output_decl):  Skip first item on chain of DECL_ARGUMENTS
        !          8854:        for a FUNCTION_DECL whose type is a METHOD_TYPE.
        !          8855:        Suppress output of type DIEs for formal parms of a FUNCTION_DECL
        !          8856:        until after all TAG_parameter DIEs have been output (for SDB
        !          8857:        compatability).
        !          8858:        Output DIEs for any LABEL_DECL nodes attached to outermost BLOCK of
        !          8859:        a FUNCTION_DECL.
        !          8860:        Handle LABEL_DECL nodes.
        !          8861: 
        !          8862:        * dwarfout.c (dwarfout_file_scope_decl):  Un-pend all pending file-
        !          8863:        scope types after each file-scope declaration is output.
        !          8864:        (output_decls_for_scope):  Un-pend all pending local types
        !          8865:        at end of each local scope.
        !          8866: 
        !          8867: Tue Jan 14 16:40:39 1992  Tim Moore  (moore at fast.cs.utah.edu)
        !          8868: 
        !          8869:        * calls.c (expand_call): If ARGS_GROW_DOWNWARD, make slot_offset
        !          8870:        negative and set highest_outgoing_arg_in_use to needed + 1.
        !          8871:        (store_one_arg): If ARGS_GROW_DOWNWARD deal with negative slot_offset.
        !          8872: 
        !          8873: Tue Jan 14 20:01:59 1992  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)
        !          8874: 
        !          8875:        * sparc.h (TARGET_SUN_ASM, TARGET_GNU): Delete support for
        !          8876:        obsolete and undocumented flags -msun-asm and -mgnu.
        !          8877:        * sparc.md: Likewise.
        !          8878: 
        !          8879: Tue Jan 14 19:36:21 1992  Tim Moore  (moore at fast.cs.utah.edu)
        !          8880: 
        !          8881:        * xm-hp800.h (hpux8): define.
        !          8882:        * hp800.h (LINK_SPEC): Conditionalize on hpux8.
        !          8883:        (STACK_BOUNDARY): Define for snake.
        !          8884:        (CALL_USED_REGISTERS): Shift register is special.
        !          8885:        (HARD_REGNO_MODE_OK): Don't allow modes smaller that SImode in fp
        !          8886:        registers.
        !          8887:        (reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS): Eliminate
        !          8888:        GENERAL_OR_FP_REGS, GENERAL_OR_SNAKE_FP_REGS classes.
        !          8889:        (FUNCTION_ARG): Handle snake fp arguments.
        !          8890:        (ASM_DOUBLE_ARG_DESCRIPTORS): define.
        !          8891:        (ASM_DECLARE_FUNCTION_NAME): Use above macro to get around hpux
        !          8892:        8.0 change.
        !          8893:        * hp800.md (movsi, movdi): Add ! and * to constraints of anonymous
        !          8894:        define-insns to discourage SImode values in fp registers. Don't
        !          8895:        modify the stack pointer when moving between general and fp registers.
        !          8896:        (mulsi): Take out pattern that matches a degenerate multiplication
        !          8897:        by 1; it doesn't seem to be needed and causes problems.
        !          8898:        (sar_sub): Change so that const_int isn't the first argument of
        !          8899:        the comparison.
        !          8900:        * hp800.c (output_fp_move_double): As above, don't modify the
        !          8901:        stack pointer when moving between general and fp registers. 
        !          8902:        (output_block_move): Don't make one CONST_INT rtx and store
        !          8903:        different integer values in it; cons up a "new" one for each value.
        !          8904:        (output_floatsisf2, output_floatsidf2): Fix typos.
        !          8905:        (output_arg_descriptor): Conditionalize for HPUX 8.0.
        !          8906: 
        !          8907: Tue Jan 14 14:38:09 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          8908: 
        !          8909:        * cp-typeck.c (build_unary_op): Call readonly_warning_or_error if
        !          8910:        ARG is TREE_READONLY (in addition to the type being TYPE_READONLY).
        !          8911: 
        !          8912:        * cp-init.c (maybe_adjust_addr_for_delete): If the adjustment needs
        !          8913:        to be done, zero out the storage that held part of the cookie.
        !          8914: 
        !          8915: Tue Jan 14 13:12:48 1991  Ron Guilmette  (rfg at ncd.com)
        !          8916: 
        !          8917:        * c-decl.c (poplevel):  Set TYPE_CONTEXT for each tagged type
        !          8918:        except inside function declaration parm list.
        !          8919:        (grokdeclarator):  Set TYPE_CONTEXT for tagged type in decl parm list.
        !          8920:        (pushtag):  Don't set TYPE_CONTEXT for tagged types here.
        !          8921: 
        !          8922: Tue Jan 14 06:46:37 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          8923: 
        !          8924:        * global-alloc.c (global_alloc): Count multi-word pseudos correctly
        !          8925:        in local_reg_n_refs.
        !          8926:        (find_reg): Evict pseudos that overlap the register we take, not just
        !          8927:        that start with that register.
        !          8928: 
        !          8929:        * a29k.c (a29k_debug_reg_map): New variable.
        !          8930:        (output_prologue): Initialize it.
        !          8931:        * a29k.h (DBX_REGISTER_NUMBER): Use that map.
        !          8932: 
        !          8933:        * ultrix.h (WCHAR_TYPE): Make definition be a known type.
        !          8934: 
        !          8935:        * final.c (final_scan_insn): Call DBR_OUTPUT_SEQEND before we
        !          8936:        clear `final_sequence', so it can call dbr_sequence_length.
        !          8937: 
        !          8938:        * reload1.c (reload): Clear insn_needs once we know we have
        !          8939:        reloads, instead of always.
        !          8940:        Don't skip processing of reloads for CALL_INSNs when caller-save
        !          8941:        needs a spill register.
        !          8942: 
        !          8943:        * flow.c (mark_used_regs, case RETURN): Insert missing test for global
        !          8944:        registers.
        !          8945: 
        !          8946:        * reorg.c (mark_referenced_resources): Mark asm's as volatile
        !          8947:        when appropriate.
        !          8948: 
        !          8949:        * integrate.h (struct inline_remap): New field const_equiv_map_size.
        !          8950:        * integrate.c (expand_inline_function): Set it; make larger map.
        !          8951:        (subst_constants): Don't reference out-of-range entry in equiv map.
        !          8952:        * unroll.c (unroll_loop): Set const_equiv_map_size.
        !          8953: 
        !          8954: See ChangeLog.4 for earlier changes.