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Annotation of GNUtools/cc/ChangeLog.6, revision 1.1

1.1     ! root        1: 
        !             2: Sat Oct 31 15:19:54 1992  Richard Stallman  ([email protected])
        !             3: 
        !             4:        * Version 2.3 released.
        !             5: 
        !             6:        * Makefile.in (install-libobjc): New target.
        !             7:        ($(srcdir)/gcc.dvi, $(srcdir)/cpp.dvi): New targets.
        !             8:        (extraclean): rm *diff, *lose, config/*lose.
        !             9:        (mostlyclean): rm config/core.
        !            10: 
        !            11:        * objc-actions.c (OBJC_SELECTORS_WITHOUT_LABELS): Define by default.
        !            12: 
        !            13: Fri Oct 30 20:11:52 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !            14: 
        !            15:        * i386.c (output_move_double): Undo 10/25 change.  Handle case
        !            16:        where part of a dest reg is used in a src mem rtx, without using
        !            17:        stack.
        !            18: 
        !            19: Fri Oct 30 18:52:57 1992  Michael Meissner  ([email protected])
        !            20: 
        !            21:        * mips.h (MIPS_VERSION): Bump meissner version number to 28.
        !            22: 
        !            23:        * mips.md (addsi3, subsi3): Don't allow -32768 as the second
        !            24:        operand, the assembler complains if the instruction fills a delay
        !            25:        slot.
        !            26: 
        !            27: Fri Oct 30 16:11:37 1992  Richard Stallman  ([email protected])
        !            28: 
        !            29:        * combine.c (simplify_shift_const):
        !            30:        For a subreg, require subreg_lowpart_p and not paradoxical.
        !            31: 
        !            32:        * Makefile.in (install-fixincludes): Ignore dirs that don't exist.
        !            33: 
        !            34: Thu Oct 29 20:15:44 1992  Richard Stallman  ([email protected])
        !            35: 
        !            36:        * gvarargs.h, gstdarg.h [4.3 net 2]: If _VA_LIST_, is undefined
        !            37:        then va_list is already declared.
        !            38: 
        !            39:        * i386gas.h (ASM_GENERATE_INTERNAL_LABEL, ASM_OUTPUT_INTERNAL_LABEL): 
        !            40:        Override, if NO_UNDERSCORES.
        !            41: 
        !            42: Thu Oct 29 17:30:52 1992  Richard Kenner  ([email protected])
        !            43: 
        !            44:        * flow.c (life_analysis): Mark FP live at end of function.
        !            45:        * reload1.c (reload): If FP was eliminated, remove it from
        !            46:        being live in any basic block.
        !            47: 
        !            48:        * varasm.c (output_constant_pool): Labels can be deleted by being
        !            49:        turned into NOTEs, not just have INSN_DELETED_P.
        !            50: 
        !            51: Thu Oct 29 16:15:47 1992  Richard Stallman  ([email protected])
        !            52: 
        !            53:        * gstdarg.h: Use _ANSI_STDARG_H_, not _ANSI_STDARG_H.
        !            54: 
        !            55:        * gstddef.h [4.3 net 2]: If _SIZE_T_, etc. are undefined
        !            56:        then type is already declared.
        !            57: 
        !            58:        * m68k.c (print_operand_address) [MOTOROLA !SGS]:
        !            59:        Don't subtract 2 in the address displacement.
        !            60: 
        !            61: Thu Oct 29 14:36:23 1992  Michael Meissner  ([email protected])
        !            62: 
        !            63:        * libgcc2.c (__builtin_vec_new): #undef NULL before including
        !            64:        stdio.h to prevent redeclaration message.
        !            65:        (pyramid __enable_execute_stack): Ditto.
        !            66: 
        !            67:        * i386rose.h (YES_UNDERSCORES): Define.
        !            68:        (ASM_OUTPUT_LABELREF): Don't redefine.
        !            69: 
        !            70:        * mips.h (ASM_FINAL_SPEC): If cross compiling, don't invoke
        !            71:        mips-tfile by default.
        !            72: 
        !            73:        * decrose.h (ASM_FINAL_SPEC): If cross compiling, don't invoke
        !            74:        mips-tfile by default.
        !            75: 
        !            76:        * mips-tdump.c, mips-tfile.c:  Handle the case where CROSS_COMPILE
        !            77:        is defined more gracefully.
        !            78: 
        !            79: Thu Oct 29 12:10:16 1992  Tim Moore  (moore at defmacro.cs.utah.edu)
        !            80: 
        !            81:        * combine.c (make_extraction): Fix paren error in if for INNER is reg.
        !            82: 
        !            83: Thu Oct 29 13:49:03 1992  Jim Wilson  ([email protected])
        !            84: 
        !            85:        * xm-mipsbsd.h: Really delete file.
        !            86: 
        !            87: Thu Oct 29 02:48:28 1992  Tom Wood  ([email protected])
        !            88: 
        !            89:        * dwarfout.c, arm.c, m88k.c: Include "assert.h" instead of <assert.h>.
        !            90: 
        !            91: Thu Oct 29 00:43:00 1992  Richard Stallman  ([email protected])
        !            92: 
        !            93:        * gstddef.h [4.3 net 2]: Force inclusion of ansi.h.
        !            94:        Undef _SIZE_T_, _PTRDIFF_T_, _WCHAR_T_ at end.
        !            95: 
        !            96:        * Makefile.in (libgcc2.a, libgcc1.a): Use || to exit if cp fails.
        !            97:        (install-float-h-cross): Use fi, not done.
        !            98:        Write float.h in $(tmpdir), not in `.'.
        !            99:        (tmpdir): New variable.
        !           100: 
        !           101:        * i386gas.h (NO_UNDERSCORES): Test was backwards.
        !           102:        (SDB_DEBUGGING_OUTPUT): Defined.
        !           103: 
        !           104: Wed Oct 28 16:33:34 1992  Richard Stallman  ([email protected])
        !           105: 
        !           106:        * gstdarg.h, gvarargs.h:
        !           107:        On Net 2 system, don't test, define or undef _VA_LIST_.
        !           108:        Use _ANSI_H_, __BSD_NET2__ and ____386BSD____ to test for this.
        !           109: 
        !           110:        * i386bsd.h (CPP_PREDEFINES): Add ____386BSD____.
        !           111: 
        !           112:        * c-decl.c (pushdecl): Allow redeclaring builtin as any sort of static.
        !           113: 
        !           114:        * Makefile.in (install-cross-tools): Fix typo.
        !           115:        (all.build): Dep on xgcc instead of $(GCC_PASSES).
        !           116: 
        !           117: Wed Oct 28 15:25:42 1992  Tom Wood  ([email protected])
        !           118: 
        !           119:        * m88k.c (print_operand): When AS_BUG_FLDCR is defined, use alternate
        !           120:        fldcr form.
        !           121:        * m88kdgux.h (AS_BUG_FLDCR): Define to accomodate 4.30 assembler bug.
        !           122: 
        !           123:        * m88kv3.h (CPP_PREDEFINES): Add -Dunix.
        !           124: 
        !           125:        * m88kdolph.h (SDB_ALLOW_FORWARD_REFERENCES): Don't override.
        !           126: 
        !           127: Wed Oct 28 05:34:11 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           128: 
        !           129:        * reload1.c (gen_input_reload): In PLUS, if OP0 and OP1 are the
        !           130:        same, use RELOADREG when generating the addition.
        !           131: 
        !           132:        * reload.c (find_reloads_address): When copying memref after we've
        !           133:        made recursive calls on it, copy any replacements we made.
        !           134: 
        !           135:        * combine.c (can_combine_p): Don't substitute an expression
        !           136:        containing a register that will be clobbered in I3.
        !           137: 
        !           138:        * objc/core.c, objc/hash.c: Include tconfig.h, not config.h.
        !           139:        Include gstdarg.h.
        !           140:        * objc/object.m: Include tconfig.h, not config.h.
        !           141:        Include gstdarg.h before stdio.h.
        !           142:        * objc/objc.h: Don't include gstdarg.h here.
        !           143:        * objc/objc-proto.h (CLASS_LOCATION_SHIFT): Use HOST_BITS_PER_LONG,
        !           144:        not BITS_PER_WORD.
        !           145:        (setClassNumber, getClassNumber): `info' field is long, not int.
        !           146: 
        !           147: Wed Oct 28 10:54:50 1992  Michael Meissner  ([email protected])
        !           148: 
        !           149:        * libgcc2.c (L_caps_new): Properly close comment.
        !           150: 
        !           151: Wed Oct 28 05:50:10 1992  Torbjorn Granlund  ([email protected])
        !           152: 
        !           153:        * pa.md (mulsi): Input predicates back to srcsi_operands.
        !           154:        Don't handle constants specifically for TARGET_SNAKE, but call
        !           155:        force_reg to put them in registers.
        !           156:        (indexed addressing mode patterns): Remove the patterns with
        !           157:        unscaled index.  Switch off patterns that never match.
        !           158: 
        !           159:        * longlong.h (file header): Add comment describing sdiv_qrnnd.
        !           160:        (__hppa sub_ddmmss): Swap input operands.
        !           161: 
        !           162:        * gcc.c (process_command): Check that we have enough arguments.
        !           163: 
        !           164: Wed Oct 28 00:40:18 1992  Richard Stallman  ([email protected])
        !           165: 
        !           166:        * configure (i[34]86-*-sysv*): Take note of $stabs.
        !           167:        * i386gas.h (SDB_DEBUGGING_INFO): #undef deleted.
        !           168:        (DBX_DEBUGGING_INFO): Definition deleted.
        !           169:        * i386gstabs.h: New file.
        !           170: 
        !           171:        * Makefile.in (mostlyclean): Don't delete tmp-limits.h.
        !           172: 
        !           173:        * i386vgas.h: File deleted.
        !           174: 
        !           175: Tue Oct 27 15:35:51 1992  Richard Stallman  ([email protected])
        !           176: 
        !           177:        * libgcc2.c: Include stdio.h.
        !           178:        [__GNU_LIBRARY__] (write): Defined.
        !           179: 
        !           180:        * Makefile.in (install-cross-tools): When handling $(tooldir)/include,
        !           181:        do all cd's starting from build directory.
        !           182: 
        !           183:        * i386gas.h (NO_UNDERSCORES): Don't define, if YES_UNDERSCORES.
        !           184:        * i386linux.h (YES_UNDERSCORES): Defined.
        !           185: 
        !           186: Tue Oct 27 14:17:43 1992  Jim Wilson  ([email protected])
        !           187: 
        !           188:        * configure (i[34]86-*-linux): Set broken_install.
        !           189:        * x-linux (INSTALL): Delete.
        !           190:        * x-iris (INSTALL): Delete.
        !           191: 
        !           192: Tue Oct 27 13:39:22 1992  Tim Moore  ([email protected])
        !           193: 
        !           194:        * pa.h (ASM_GLOBALIZE_LABEL): Give function symbols CODE type,
        !           195:        others DATA type.
        !           196: 
        !           197: Mon Oct 26 16:40:43 1992  Richard Stallman  ([email protected])
        !           198: 
        !           199:        * c-typeck.c (build_c_cast): Don't warn about size change between
        !           200:        pointer and integer if the value is constant.
        !           201: 
        !           202:        * Makefile.in (libobjc.a): If ln fails, copy libobjc.a.
        !           203: 
        !           204: Mon Oct 26 16:21:11 1992  Tim Moore  ([email protected])
        !           205: 
        !           206:        * pa.h (EXPORT_PARMS, ASM_DECLARE_FUNCTION): Blow away usage of
        !           207:        EXPORT_PARMS.  BUGGY_GAS isn't a problem any more.
        !           208:        (TEXT_SPACE_P, FUNCTION_NAME_P): New macros.
        !           209:        (ENCODE_SECTION_INFO): Use TEXT_SPACE_P.
        !           210:        (STRIP_NAME_ENCODING): Strip a '*' which might preceed a '@'.
        !           211:        (ASM_OUTPUT_EXTERNAL): Give only function labels a CODE type.
        !           212:        (ASM_OUTPUT_LABELREF): Use FUNCTION_NAME_P.
        !           213:        * pa.c (hppa_encode_label): Change function name encoding to
        !           214:        preserve leading '*' if there is one.
        !           215:        (function_label_operand): Use FUNCTION_NAME_P macro.
        !           216: 
        !           217: Mon Oct 26 14:39:46 1992  Torbjorn Granlund  ([email protected])
        !           218: 
        !           219:        From Tim Moore:
        !           220:        * function.c (locate_and_pad_parm): In ARGS_GROW_DOWNWARD case,
        !           221:        don't pad to argument alignment if where_pad is downward.
        !           222: 
        !           223: Mon Oct 26 11:21:36 1992  Chris Smith  ([email protected])
        !           224: 
        !           225:        * convex.h (SHIFT_COUNT_TRUNCATED): Undefine.
        !           226: 
        !           227: Mon Oct 26 07:48:35 1992  Richard Kenner  ([email protected])
        !           228: 
        !           229:        * alpha.c (print_operand, new 'L'): New case.
        !           230:        * alpha.md (movhi/movqi patterns): For long constants, use 'i'
        !           231:        constraint instead of 'K'; use "%L1" in template.
        !           232: 
        !           233:        * configure (alpha): Set use_collect2.
        !           234: 
        !           235: Mon Oct 26 04:19:24 1992  Richard Stallman  ([email protected])
        !           236: 
        !           237:        * xm-alpha.h: Declare calloc.
        !           238: 
        !           239: Sun Oct 25 17:19:52 1992  Richard Stallman  ([email protected])
        !           240: 
        !           241:        * function.c (fixup_var_refs_insns): Don't call delete_insn if not -O.
        !           242:        Make a NOTE_INSN_DELETED instead.
        !           243: 
        !           244: Sun Oct 25 11:57:04 1992  Chris Smith  ([email protected])
        !           245: 
        !           246:        * convex.h (target_flags): prevent -mnoc2 from clearing
        !           247:        TARGET_INDIRECTS.
        !           248:        (TARGET_INDIRECTS): Always on.
        !           249: 
        !           250: Sun Oct 25 16:56:18 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           251: 
        !           252:        * calls.c (expand_call): Don't call convert_to_mode if we obtained
        !           253:        VALUE in the proper mode; VALUE might be a CONST_INT.
        !           254: 
        !           255: Sun Oct 25 03:18:03 1992  Richard Stallman  ([email protected])
        !           256: 
        !           257:        * expr.c (gen_push_operand): No longer static.
        !           258: 
        !           259:        * i386.c (output_move_double): Divert first word via the stack
        !           260:        if it's a register used in the input operand.
        !           261:        * i386.md (movdi): Delete the `&' from constraint.
        !           262: 
        !           263: Sat Oct 24 21:41:00 1992  Chris Smith  ([email protected])
        !           264: 
        !           265:        * convex.md (movstrictsi): Correct output constraint is + not =.
        !           266: 
        !           267: Sat Oct 24 14:10:43 1992  Richard Stallman  ([email protected])
        !           268: 
        !           269:        * news.h (FUNCTION_EPILOGUE): Fix typos.
        !           270: 
        !           271:        * cccp.c (get_lintcmd): Length of `LINTLIBRARY' is 11.
        !           272: 
        !           273: Sat Oct 24 13:22:09 1992  Torbjorn Granlund  ([email protected])
        !           274: 
        !           275:        * arm.md (DImode patterns): Add `&' to target operand constraints.
        !           276: 
        !           277:        * Makefile.in (setting version variable): Prepend $(srcdir) to
        !           278:        version.c.
        !           279: 
        !           280:        From Wilson:
        !           281:        * longlong.h (sparclite): Use machine independent USItype instead
        !           282:        of explicit types.
        !           283: 
        !           284: Sat Oct 24 10:35:18 1992  Richard Kenner  ([email protected])
        !           285: 
        !           286:        * rs6000.md (movdi): Tests were in wrong order.
        !           287: 
        !           288:        * rs6000.h (LEGITIMIZE_ADDRESS): Indexed addresses are not valid
        !           289:        for DImode and TImode; GO_IF_LEGITIMATE_ADDRESS knows this.
        !           290: 
        !           291:        * Makefile.in (mostlyclean): Add missing semicolon.
        !           292: 
        !           293:        * a29k.c (a29k_set_memflags, a29k_set_memflags_1): New functions.
        !           294:        * a29k.md (movqi, movhi, reload_{in,out}{qi,hi}): Use them.
        !           295: 
        !           296:        * alpha.c (get_aligned_mem): Copy memory flags to new MEM.
        !           297:        (alpha_set_memflags, alpha_set_memflags_1): New functions.
        !           298:        * alpha.md (movqi, movhi, reload_{in,out}{qi,hi}): Use new
        !           299:        functions.
        !           300: 
        !           301:        * alpha.h (ASM_FILE_START): Stop at blank in version string.
        !           302: 
        !           303: Sat Oct 24 04:35:16 1992  Richard Stallman  ([email protected])
        !           304: 
        !           305:        * reload1.c (emit_reload_insns): If not -O, Don't try find_equiv_reg.
        !           306:        (choose_reload_regs): If not -O, don't inherit reloads.
        !           307: 
        !           308: Fri Oct 23 18:07:10 1992  Richard Stallman  ([email protected])
        !           309: 
        !           310:        * news.h (FUNCTION_EPILOGUE):
        !           311:        If no frame ptr, increment stack ptr to free up the local space.
        !           312: 
        !           313:        * gcc.c (process_command): Discard after first space in spec_version.
        !           314: 
        !           315:        * print-tree.c (print_node): Always output `>' to match `<'.
        !           316: 
        !           317:        * Makefile.in (version): Use sed to extract.
        !           318:        Ignore excess after space.
        !           319:        (install-fixincludes): Fix typo in last change.
        !           320: 
        !           321:        * configure (i386-ibm-aix*): Use aix386ng.h if not --with-gas.
        !           322:        * aix386ng.h: New file.
        !           323: 
        !           324: Fri Oct 23 15:14:49 1992  Brendan Kehoe  ([email protected])
        !           325: 
        !           326:        * sdbout.c (sdbout_symbol): Return if a symbol's DECL_NAME is
        !           327:        empty, since we won't be able to make a symtab of it.
        !           328: 
        !           329:        * convex.h (P_tmpdir): Remove definition.
        !           330:        * xm-convex.h: Put it here.
        !           331: 
        !           332: Fri Oct 23 10:27:34 1992  Michael Meissner  ([email protected])
        !           333: 
        !           334:        * i386rose.h (ASM_OUTPUT_LABELREF): Define so that external
        !           335:        identifiers have leading underscores in front of them.
        !           336: 
        !           337:        * mips-tfile.c (parse_stabs_common): Allow stabs with line numbers
        !           338:        of 0.  These come from g++ for compiler generated functions that
        !           339:        take arguments.
        !           340: 
        !           341: Fri Oct 23 07:49:12 1992  Richard Kenner  ([email protected])
        !           342: 
        !           343:        * romp.c (output_fpops): Add SYMBOL_REF and LABEL_REF cases to
        !           344:        constants handled.
        !           345: 
        !           346: Fri Oct 23 01:58:12 1992  Richard Stallman  ([email protected])
        !           347: 
        !           348:        * flow.c (find_basic_blocks): Check for LABEL_REF_NONLOCAL_P
        !           349:        in label_value_list.
        !           350:        * jump.c (mark_jump_label): Copy LABEL_REF_NONLOCAL_P from
        !           351:        LABEL_REF into REG_LABEL note.
        !           352: 
        !           353:        * toplev.c (push_float_handler): Declare arg old_handler.
        !           354: 
        !           355:        * t-next (OTHER_FIXINCLUDES_DIRS): Defined.
        !           356: 
        !           357:        * Makefile.in (OTHER_FIXINCLUDES_DIRS): New variable, normally empty.
        !           358:        (install-fixincludes): Run fixincludes on those dirs.
        !           359:        * fixincludes: Convert //-style comments to /*...*/ style.
        !           360: 
        !           361:        * loop.c (record_biv): Clear total_benefit field of new iv_class.
        !           362:        (get_condition):
        !           363:        Verify op 2 of source is label_ref before looking within.
        !           364: 
        !           365: Thu Oct 22 21:17:53 1992  Tim Moore  (moore at defmacro.cs.utah.edu)
        !           366: 
        !           367:        * varasm.c (STRIP_NAME_ENCODING): New macro to decode a symbol name
        !           368:        munged by ENCODE_SECTION_INFO. 
        !           369:        (assemble_start_function, assemble_variable): Use STRIP_NAME_ENCODING.
        !           370:        * pa.h (STRIP_NAME_ENCODING): New definition.
        !           371: 
        !           372: Thu Oct 22 17:53:37 1992  Richard Stallman  ([email protected])
        !           373: 
        !           374:        * Makefile.in (mostlyclean): Clean objc subdir only if it exists.
        !           375: 
        !           376:        * news.h (FUNCTION_PROLOGUE): Do allocate local stack space
        !           377:        when no frame pointer.
        !           378: 
        !           379: Thu Oct 22 15:21:27 1992  Jim Wilson  ([email protected])
        !           380: 
        !           381:        * i960.h (FUNCTION_VALUE): Simplify, just return reg 0.
        !           382:        * i960.c (i960_function_value): Delete.
        !           383: 
        !           384: Thu Oct 22 09:42:50 1992  Michael Meissner  ([email protected])
        !           385: 
        !           386:        * mips-tfile.c (parse_stabs_common): Ignore stab line numbers
        !           387:        of 0, since the G++ front end generates them.  Check whether
        !           388:        line numbers can fit within the index field, and if not report
        !           389:        an error.
        !           390: 
        !           391:        * mips.c (function_arg): Align passed structures to double word
        !           392:        boundary if structure has double word alignment.
        !           393: 
        !           394:        * mips.h (STACK_DYNAMIC_OFFSET): Do not define this macro in order
        !           395:        to work around a bug.
        !           396: 
        !           397: Thu Oct 22 08:00:43 1992  Richard Stallman  ([email protected])
        !           398: 
        !           399:        * gstdarg.h, gvarargs.h: Treat _AIX and _M_UNIX like __svr4__.
        !           400: 
        !           401:        * i386gas.h (NO_UNDERSCORES): Defined.
        !           402: 
        !           403:        * next.h (INCLUDE_DEFAULTS): Put in GPLUSPLUS_INCLUDE_DIR,
        !           404:        GCC_INCLUDE_DIR, LOCAL_INCLUDE_DIR, STANDARD_INCLUDE_DIR.
        !           405:        Don't define at all if cross-compiling.
        !           406: 
        !           407:        * tree.c (copy_node): Copy the excess bytes--don't clear them.
        !           408: 
        !           409: Thu Oct 22 06:40:55 1992  Richard Kenner  ([email protected])
        !           410: 
        !           411:        * a29k.h (TARGET_SWITCHES): Add missing complementary switches:
        !           412:        -mno-stack-check and -mstorem-bug.
        !           413: 
        !           414:        * a29k.md (long constant split): Use gen_lowpart instead of making
        !           415:        a SUBREG directly.
        !           416: 
        !           417:        * arm.h (STORE_FLAG_VALUE): Remove bogus definition.
        !           418: 
        !           419: Thu Oct 22 03:04:28 1992  Tom Wood  ([email protected])
        !           420: 
        !           421:        * m88k.c (prologue_marked): New variable.
        !           422:        (m88k_end_prologue): Output the epilogue mark here if the start of
        !           423:        the epilogue passed the end of the prologue.
        !           424:        (m88k_begin_epilogue): Don't output the epilogue mark if the end
        !           425:        of the prologue hasn't been processed yet.
        !           426: 
        !           427: Thu Oct 22 03:20:40 1992  Richard Stallman  ([email protected])
        !           428: 
        !           429:        * function.c (put_var_into_stack): When we operate on a pseudo
        !           430:        that holds the address, use proper modes.
        !           431: 
        !           432:        * combine.c (make_extraction): Use is_mode, not inner_mode,
        !           433:        for BYTES_BIG_ENDIAN adjustment to offset for non-bitfield case.
        !           434:        Update is_mode when stripping subreg from around a mem.
        !           435: 
        !           436:        * m68k.h (GO_IF_INDEXABLE_BASE): Allow LABEL_REF only if jump table.
        !           437: 
        !           438: Wed Oct 21 18:55:24 1992  Richard Stallman  ([email protected])
        !           439: 
        !           440:        * gstdarg.h: Check and define _ANSI_STDARG_H along with _STDARG_H.
        !           441: 
        !           442: Wed Oct 21 11:41:39 1992  Tom Wood  (wood at gen-rtx)
        !           443: 
        !           444:        * toplev.c (push_float_handler, pop_float_handler): New functions.
        !           445:        * fold-const.c (real_value_truncate):
        !           446:        Use them, in case another handler is already in effect.
        !           447: 
        !           448: Wed Oct 21 22:08:31 1992  H.J. Lu  ([email protected])
        !           449: 
        !           450:        * Makefile (all.build): Add target $(GCC_PASSES) for xgcc. 
        !           451:        * build-make (CC): Defined.
        !           452:        (CROSS_GCC_FLAGS): Deleted.
        !           453:        (HOST_CC): Delete -V option; CC supplies that.
        !           454: 
        !           455: Wed Oct 21 12:34:39 1992  Torbjorn Granlund  ([email protected])
        !           456: 
        !           457:        From Wilson:
        !           458:        * longlong.h (sparclite udiv_qrnnd): Remove comma before
        !           459:        __AND_CLOBBER_CC.
        !           460: 
        !           461: Wed Oct 21 12:24:24 1992  Michael Meissner  ([email protected])
        !           462: 
        !           463:        * decrose.h (WORD_SWITCH_TAKES_ARG): Add -pic-names.
        !           464:        (CC1_SPEC): If -pic-names, pass -mhalf-pic to cc1.
        !           465: 
        !           466:        * i386rose.h (WORD_SWITCH_TAKES_ARG): Add -pic-names.
        !           467:        (CC1_SPEC): If -pic-names, pass -mhalf-pic to cc1.
        !           468: 
        !           469: Wed Oct 21 07:34:16 1992  Richard Kenner  ([email protected])
        !           470: 
        !           471:        * configure (alpha): Only accept OSF/1.
        !           472: 
        !           473:        * alpha.h (ASM_FILE_START): Change .verstamp ident for BL9.
        !           474:        * alpha.md (div/mod): Change calling sequence to agree with BL9.
        !           475: 
        !           476:        * expr.c (do_store_flag): Ensure we don't get confused when
        !           477:        emit_store_flag fails and an operand has a QUEUED.
        !           478: 
        !           479: Wed Oct 21 02:53:58 1992  Richard Stallman  ([email protected])
        !           480: 
        !           481:        * cexp.y (integer_overflow): Do nothing unless pedantic.
        !           482: 
        !           483: Tue Oct 20 17:02:15 1992  Jim Wilson  ([email protected])
        !           484: 
        !           485:        * README, sparc.h, flow.c, regs.h: Change global-alloc.c to global.c.
        !           486: 
        !           487:        * i960.md (call, call_value): Use 'd' not 'r' constraint for scratch.
        !           488: 
        !           489:        * gcc.c (WORD_SWITCH_TAKES_ARG): Handle -Ttext and -Tbss in
        !           490:        addition to -Tdata.
        !           491:        * i960.h (WORD_SWITCH_TAKES_ARG): Delete, now unnecessary.
        !           492:        * next.h (WORD_SWITCH_TAKES_ARG): Add -Tbss.
        !           493:        * sparc.h, sun2.h, sun3.h (WORD_SWITCH_TAKES_ARG): Add -Ttext and
        !           494:        -Tbss.
        !           495: 
        !           496: Tue Oct 20 16:49:57 1992  Ron Guilmette (rfg at netcom.com)
        !           497: 
        !           498:        * dwarfout.c (dwarfout_file_scope_decl): Generate DIEs for
        !           499:        built-in non-fundamental types.
        !           500: 
        !           501: Tue Oct 20 14:58:18 1992  Richard Stallman  ([email protected])
        !           502: 
        !           503:        * objc-actions.c (handle_impent, handle_class_ref): Use __
        !           504:        to start the generated names, not period.
        !           505: 
        !           506: Tue Oct 20 14:38:30 1992  Brendan Kehoe  ([email protected])
        !           507: 
        !           508:        * cp-method.c (fndecl_as_string): Undo change of Sep 14th for
        !           509:        emitting a space after the return type of a fn.
        !           510: 
        !           511:        Wed Oct  7 16:01:55 1992  Chip Salzenberg  ([email protected])
        !           512: 
        !           513:        * cp-lex.c (readescape): No warning if digits in \x are all 0's.
        !           514: 
        !           515: Tue Oct 20 06:50:28 1992  Richard Kenner  ([email protected])
        !           516: 
        !           517:        * expr.c (force_operand): Clarify comment to say what it can return.
        !           518:        * integrate.c (copy_rtx_and_substitute): Don't assume force_operand
        !           519:        on an address returns a REG; it might be a SUBREG.  Use force_reg.
        !           520: 
        !           521: Tue Oct 20 04:54:01 1992  Richard Stallman  ([email protected])
        !           522: 
        !           523:        * tree.c (make_node, copy_node):
        !           524:        Don't assume node length is multiple of int.
        !           525: 
        !           526: Mon Oct 19 18:14:56 1992  Jim Wilson  ([email protected])
        !           527: 
        !           528:        * genrecog.c (write_tree): For type SPLIT, check subroutine return
        !           529:        values for non-zero value not positive value.
        !           530: 
        !           531: Mon Oct 19 16:11:04 1992  Michael Meissner  ([email protected])
        !           532: 
        !           533:        * c-typeck.c (print_table, scan_table): Add support for XPG4's %S
        !           534:        and %C formats for printing/reading wide characters.  %lc and %ls too.
        !           535: 
        !           536: Mon Oct 19 17:58:18 1992  Torbjorn Granlund  ([email protected])
        !           537: 
        !           538:        * arm.c (output_epilogue): Restore sp's value if no frame pointer.
        !           539: 
        !           540:        From Wilson:
        !           541:        * pa.h (WORD_SWITCH_TAKES_ARG): Delete sparc related cruft.
        !           542: 
        !           543: Mon Oct 19 14:49:03 1992  Brendan Kehoe  ([email protected])
        !           544: 
        !           545:        * cp-parse.y (primary): Don't try building a CALL_EXPR or
        !           546:        converting types if $$ is an error_mark.
        !           547: 
        !           548: Mon Oct 19 14:01:02 1992  Tom Wood  ([email protected])
        !           549: 
        !           550:        * m88k.h (SECONDARY_INPUT_RELOAD_CLASS): Require a temporary for a
        !           551:        pic address with a large constant term.
        !           552:        * m88k.md (reload_insi): New pattern.
        !           553:        (addsi3 pattern for large constants): Delete.  Causes reload trouble.
        !           554:        * m88k.c (emit_move_sequence): Add scratch register.  All callers
        !           555:        changed.
        !           556:        (legitimize_address): Add scratch register.  All callers changed
        !           557:        to pass zero instead of gen_reg_rtx result.  Allocate another temp
        !           558:        register for -fPIC case.  Use scratch register for pic cases with
        !           559:        a large constant term.
        !           560: 
        !           561:        * m88k.h (FUNCTION_PROFILER_LENGTH, FUNCTION_BLOCK_PROFILER_LENGTH,
        !           562:        BLOCK_PROFILER_LENGTH, REG_PUSH_LENGTH, REG_POP_LENGTH): Added.
        !           563:        (ADJUST_INSN_LENGTH): Account for profiling code.
        !           564: 
        !           565: Mon Oct 19 16:46:52 1992  Richard Stallman  ([email protected])
        !           566: 
        !           567:        * Makefile.in (libobjc.a): Don't mkdir objc if dir exists.
        !           568: 
        !           569:        * expr.c (store_field): If trying to sign-extend a constant,
        !           570:        use value_mode as the mode.
        !           571: 
        !           572: Mon Oct 19 10:59:20 1992  Michael Meissner  ([email protected])
        !           573: 
        !           574:        * xm-umips.h (index): Define to be strchr.
        !           575:        (rindex): Define to be strrchr.
        !           576: 
        !           577:        * mips-tdump.c (index, rindex): Undefine these, since the MIPS
        !           578:        include files have a field spelled index.
        !           579: 
        !           580: Mon Oct 19 03:34:04 1992  Richard Stallman  ([email protected])
        !           581: 
        !           582:        * Makefile.in (mostlyclean): Delete libobjc.a.
        !           583:        (libobjc.a): Create the objc subdir.
        !           584: 
        !           585: Sun Oct 18 17:52:05 1992  Arne H. Juul ([email protected])
        !           586: 
        !           587:        * objc/Makefile: Add .SUFFIXES .m and .m.o rule to keep non-GNU
        !           588:        make happy.
        !           589: 
        !           590:        * Makefile.in (libobjc.a): Remove libobjc.a in current directory
        !           591:        before attempting to hardlink it or make will fail in later stages.
        !           592:        (sublibobcj.a): Don't use $(MAKEFLAGS) for objc subdir stuff.
        !           593: 
        !           594: Sun Oct 18 06:00:27 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !           595: 
        !           596:        * cse.c (canon_reg): Don't call validate_change if INSN is zero.
        !           597: 
        !           598: Sun Oct 18 01:09:02 1992  Richard Stallman  ([email protected])
        !           599: 
        !           600:        * i860.h (PRINT_OPERAND): For `h', always use OPERAND_HIGH_ADJ_PART
        !           601:        even for integer constant addresses.
        !           602: 
        !           603:        * final.c (output_addr_const): Always use FILE, not asm_out_file.
        !           604: 
        !           605:        * cccp.c (collect_expansion): Don't add whitespace at end
        !           606:        if inside a string and not traditional.
        !           607:        (rescan): At end of string, if inside macro, always keep scanning.
        !           608: 
        !           609:        * expr.c (store_field): If signed bitfield and want value, sign extend.
        !           610: 
        !           611: Sat Oct 17 21:11:09 1992  H.J. Lu  ([email protected])
        !           612: 
        !           613:        * Makefile.in (all.build): New rule for making gcc with a
        !           614:        cross-compiler.
        !           615:        (install.build): New target.
        !           616:        (line 271): Add `####build overrides'.
        !           617:        (gen*.o): Depend on hconfig.h, not config.h.
        !           618:        ($(HOST_PREFIX_1)rtl.o, $(HOST_PREFIX_1)print-rtl.o,
        !           619:         $(HOST_PREFIX_1)rtlanal.o, $(HOST_PREFIX_1)obstack.o,
        !           620:         $(HOST_PREFIX_1)malloc.o): Add final `h' to the regexp to replace.
        !           621: 
        !           622:        * configure: If $host == $taget, but $host != $build, merge
        !           623:        `build-make' and emit `build = $build'.
        !           624:        * build-make: New file for making gcc with a cross-compiler.
        !           625: 
        !           626: Sat Oct 17 19:24:31 1992  Richard Stallman  ([email protected])
        !           627: 
        !           628:        * c-typeck.c (process_init_constructor): When initializing a union,
        !           629:        handle the case of an empty init list.
        !           630: 
        !           631:        * reload.c (find_reloads_address): Redo last change: copy the mem
        !           632:        in the same way it's usually done.
        !           633: 
        !           634:        * Makefile.in (gcc.xtar): Fix typo in last change.
        !           635:        (mostlyclean): Don't use $(MAKEFLAGS) for objc subdir stuff.
        !           636: 
        !           637: Sat Oct 17 19:15:16 1992  John Wroclawski  ([email protected])
        !           638: 
        !           639:        * decstatn.h (SIZE_TYPE): Fix typo.
        !           640: 
        !           641: Sat Oct 17 17:46:08 1992  Brendan Kehoe  ([email protected])
        !           642: 
        !           643:        * cp-method.c: Don't try to include string.h or strings.h.
        !           644:        * cp-decl.c: Ditto.
        !           645: 
        !           646: Sat Oct 17 13:50:49 1992  Fred Fish  ([email protected])
        !           647: 
        !           648:        * fixinc.svr4 (string.h):
        !           649:        Remove #defines for other compiler's builtin functions.
        !           650: 
        !           651: Sat Oct 17 00:39:30 1992  Richard Stallman  ([email protected])
        !           652: 
        !           653:        * protoize.c: Add #undef getopt after getopt.h.
        !           654: 
        !           655:        * gstdarg.h, gvarargs.h (va_list) [__SVR4_2__]:
        !           656:        Don't set or test _VA_LIST.
        !           657: 
        !           658:        * gstddef.h: Do nothing if _ANSI_STDDEF_H already defined.
        !           659: 
        !           660: Fri Oct 16 11:39:06 1992  H.J. Lu  ([email protected])
        !           661: 
        !           662:        * emit-rtl.c (gen_lowpart_common): Fix typo in last change.
        !           663: 
        !           664: Fri Oct 16 22:35:15 1992  Eric Youngdale ([email protected])
        !           665: 
        !           666:        * make-cc1.com: Correct previous patch.
        !           667: 
        !           668: Fri Oct 16 20:07:12 1992  Richard Stallman  ([email protected])
        !           669: 
        !           670:        * objc-actions.c (start_class):
        !           671:        For an INTERFACE_TYPE, push to permanent obstack.
        !           672:        (build_message_expr): Use TYPE_MAIN_VARIANT when comparing types.
        !           673: 
        !           674:        * Makefile.in (libobjc.a): Don't use $(MAKEFLAGS).
        !           675:        Add braces around shell variable references.
        !           676:        (collect2): Delete file before linking it.
        !           677:        * objc/Makefile (all): Don't use $(MAKEFLAGS).
        !           678:        (VPATH): Get rid of ../ since srcdir now absolute.
        !           679: 
        !           680: Fri Oct 16 14:23:25 1992  Michael Meissner  ([email protected])
        !           681: 
        !           682:        * decstatn.h (all defines): Protect all defines with an #ifndef,
        !           683:        to allow dec-osf1.h to selectively override macros.
        !           684: 
        !           685: Fri Oct 16 10:44:47 1992  Tom Wood  ([email protected])
        !           686: 
        !           687:        * Makefile.in (libobjc.a):  Compute srcdir1 without changing
        !           688:        directories.  Use srcdir1 to locate objc/Makefile.  Put quotes
        !           689:        around all potential multi-word values.  Recompute GCC_FOR_TARGET.
        !           690:        (sublibobjc.a): Use same text as libobjc.a.
        !           691:        (mostlyclean): Use $(MAKE) and srcdir1 for objc action.
        !           692:        * objc/Makefile (SUBDIR_INCLUDES): Don't use ../$(srcdir).
        !           693:        (all): Use $(MAKE).
        !           694: 
        !           695: Fri Oct 16 04:16:36 1992  Richard Stallman  ([email protected])
        !           696: 
        !           697:        * function.c (find_fixup_replacement): Renamed from find_replacement.
        !           698: 
        !           699:        * varasm.c (output_addressed_constants): Handle NON_LVALUE_EXPR.
        !           700: 
        !           701: Fri Oct 16 02:25:17 1992  Jeffrey A. Law  ([email protected])
        !           702: 
        !           703:        * pa.md (call define_expands): If TARGET_LONG_CALLS, then force
        !           704:        the address of the function into a register.
        !           705:        * pa.h (TARGET_SWITCHES): New switch "-mlong-calls".
        !           706:        * pa.c (call_operand_address): Only allow registers if
        !           707:        TARGET_LONG_CALLS.
        !           708: 
        !           709: Fri Oct 16 00:21:57 1992  Richard Stallman  ([email protected])
        !           710: 
        !           711:        * Makefile.in (libobjc.a): Get directories right, using shell vars
        !           712:        thisdir1, srcdir1.  Put quotes around $(GCC_CFLAGS).  Use $(MAKE).
        !           713: 
        !           714: Thu Oct 15 17:07:18 1992  Mike Stump  ([email protected])
        !           715: 
        !           716:        * configure, config.sub, config/elxsi.{c,h,md}, config/xm-elxsi.h,
        !           717:        config/x-elxsi: Add support for new 64 bit CPU, called Elxsi.
        !           718: 
        !           719: Thu Oct 15 16:55:22 1992  Richard Kenner  ([email protected])
        !           720: 
        !           721:        * alpha.c (alpha_builtin_saveregs): Fix bug in last change.
        !           722: 
        !           723:        * fold-const.c (distribute_bit_expr): Test for BIT_{AND,IOR}_EXPR.
        !           724: 
        !           725:        * cse.c (cse_insn): Add missing call to apply_change_group.
        !           726: 
        !           727: Thu Oct 15 15:09:45 1992  Michael Meissner  ([email protected])
        !           728: 
        !           729:        * t-mips (CCLIBFLAGS, LIBGCC2_CFLAGS): Delete, so that libgcc.a is
        !           730:        built with the -G 8 option, instead of -G 0, so that the linker
        !           731:        doesn't complain when linking in libg++.a.
        !           732:        * t-decstatn (CCLIBFLAGS, LIBGCC2_CFLAGS): Ditto.
        !           733: 
        !           734: Thu Oct 15 14:30:25 1992  Jim Wilson  ([email protected])
        !           735: 
        !           736:        * mips-tfile.c (parse_def): Allow spaces in arguments for C++.
        !           737:        Correct test for null when searching for end of name.
        !           738: 
        !           739: Thu Oct 15 11:55:51 1992  Tim Moore  ([email protected])
        !           740: 
        !           741:        * pa.c (compute_frame_size): Take an fregs_live parameter instead
        !           742:        of setting the static variable save_fregs.
        !           743:        (output_function_prologue): Initialize save_fregs to 0 and pass to
        !           744:        compute_frame_size.
        !           745:        * pa.h (INITIAL_FRAME_POINTER_OFFSET): Pass extra null parameter
        !           746:        to compute_frame_size.
        !           747: 
        !           748: Thu Oct 15 08:40:07 1992  Richard Kenner  ([email protected])
        !           749: 
        !           750:        * alpha.h (TARGET_FPREGS): New flag.
        !           751:        (TARGET_SWITCHES): Remove temporary -mfp and add -msoft-float and
        !           752:        -mfp-regs.
        !           753:        (TARGET_DEFAULT): Set to -mfp-regs -mno-soft-float.
        !           754:        (CONDITIONAL_REGISTER_USAGE): Use TARGET_FPREGS.
        !           755:        (FUNCTION_VALUE, FUNCTION_ARG, LIBCALL_VALUE): Use integer registers
        !           756:        for FP items if -mno-fp-regs.
        !           757:        * alpha.c (alpha_builtin_saveregs): Store integer regs twice instead
        !           758:        of storing the FP regs if -mno-fp-regs.
        !           759: 
        !           760:        * fold-const.c (fold): Add missing test in case when we
        !           761:        distribute a NOP_EXPR into a COND_EXPR and try to pull it back
        !           762:        out again.
        !           763: 
        !           764: Thu Oct 15 08:11:00 1992  Tom Wood  ([email protected])
        !           765: 
        !           766:        * fold-const.c (simple_operand_p): Don't regard global or static
        !           767:        variables as simple.
        !           768:        (fold_truthop): Only require the RHS to be simple.
        !           769: 
        !           770:        * m88k.h (CPP_SPEC): Add -D__m88110__ when -m88110 is in effect,
        !           771:        similarly for -m88100.
        !           772:        * m88kdgux.h (CPP_SPEC): Ditto.
        !           773:        * m88kluna.h (CPP_PREDEFINES): Drop -Dmc88100.
        !           774:        (CPP_SPEC): Reproduce the predefine -Dmc88100 when -m88100 is in
        !           775:        effect.  Otherwise, supply -D__mc881x0__ when -m881x0 is in effect.
        !           776: 
        !           777: Thu Oct 15 02:09:49 1992  Richard Stallman  ([email protected])
        !           778: 
        !           779:        * expr.c (get_inner_reference):
        !           780:        If flag_volatile, treat every INDIRECT_REF as volatile.
        !           781: 
        !           782:        * collect2.c (main): If COLLECT_GCC is a relative name, use it anyway.
        !           783: 
        !           784:        * x-next: New file.
        !           785:        * configure (m68k-next-*): Use that.
        !           786: 
        !           787:        * Changes from NeXT:
        !           788: 
        !           789:        * libgcc2.c [L_ctors] (__CTOR_LIST__, __DTOR_LIST__):
        !           790:        Initialize these default definitions if __NeXT__.
        !           791: 
        !           792:        * gvarargs.h [__NeXT__]: Define _VA_LIST_ if _ANSI_STDARG_H_ was
        !           793:        defined; then define _ANSI_STDARG_H_.
        !           794: 
        !           795:        * gstddef.h (_ANSI_STDDEF_H): Define, along with _STDDEF_H.
        !           796: 
        !           797:        * next.h (INCLUDE_DEFAULTS): New macro.
        !           798: 
        !           799:        * cp-method.c (index, rindex): Delete declarations.
        !           800:        (build_overload_value): Cast result of index.
        !           801: 
        !           802:        * cccp.c (cplusplus_comments): New var.
        !           803:        (main): Set it according to options.
        !           804:        (rescan, handle_directive, skip_if_group, validate_else):
        !           805:        (skip_to_end_of_comment, macarg1, discard_comments): 
        !           806:        Use cplusplus_comments to enable C++ comment syntax.
        !           807: 
        !           808: Wed Oct 14 11:34:58 1992  Chip Salzenberg  ([email protected])
        !           809: 
        !           810:        * libgcc2.c (__gcc_bcmp): Don't depend on signedness of `char'.
        !           811: 
        !           812: Wed Oct 14 18:52:28 1992  Jim Wilson  ([email protected])
        !           813: 
        !           814:        * sched.c (sched_note_set): Set subreg_p for anything except a
        !           815:        paradoxical subreg.
        !           816: 
        !           817:        * configure (sparc-*-solaris2): Use xm-spc-sol2.h not xm-spcv4.h.
        !           818: 
        !           819:        * reload.c (find_reloads): Don't let an operand have a numbered
        !           820:        constraint that makes it match itself.
        !           821: 
        !           822: Wed Oct 14 10:38:31 1992  Tim Moore  ([email protected])
        !           823: 
        !           824:        * pa.md (sCC patterns): Comparison operator should have SImode,
        !           825:        not CCmode.
        !           826:        (indexed addressing mode patterns): New patterns to use indexed
        !           827:        addressing if possible.
        !           828:        * pa.c  (output_and): Do handle (const_int 0) as an operand; it
        !           829:        seems to occur in unoptimized compilation.
        !           830:        * pa.h  (REGNO_OK_FOR_FP_P): Logic bug.
        !           831:        * va-pa.h : When __GNUC__ == 1, don't include the gcc 1 varargs
        !           832:        file (va-hp9k8.h).  Instead, the definitions are explicitly defined
        !           833:        here.  This avoids multiple typedefs of va_list.
        !           834:        * xm-pa.h (HAVE_VPRINTF) Define in HPUX 8.0.
        !           835: 
        !           836:        * pa.md (mulsi): Use the hardware multiply instruction, xmpyu, if
        !           837:        TARGET_SNAKE. 
        !           838:        (umulsidi3): New pattern.
        !           839:        (reload_insi, reload_outsi, reload_indi, reload_outdi): New
        !           840:        patterns.  These are needed because SImode and DImode pseudoregs
        !           841:        may be allocated (or reloaded) in floating point registers for
        !           842:        multiplication. That means that their addresses, which were
        !           843:        legitimate for SImode and DImode, aren't valid any more.
        !           844:        (movsi, movhi, movqi, movdf, movdi, movsf): Pass null scratch
        !           845:        operand to emit_move_sequence. 
        !           846:        (fp SImode load and store patterns): Move before main movsi
        !           847:        pattern. 
        !           848:        (fp DImode load and store patterns) New patterns.
        !           849:        (movhi, movqi patterns): Support moves to/from fp registers.
        !           850:        (movdf pattern): Ensure at least one operand is a register.
        !           851:        * pa.c  (emit_move_sequence): Take reload scratch register
        !           852:        argument, deal with reloads of SImode and DImode mems into
        !           853:        floating point registers, handle function_label_operand moves.
        !           854:        (secondary_reload_class): A scratch register is needed if
        !           855:        reloading a function_label_operand address (probably doesn't
        !           856:        happen) or an SImode or DImode value into/out of a floating
        !           857:        point register.
        !           858:        * pa.h  (reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS,
        !           859:        REG_CLASS_FROM_LETTER): Define a new register class
        !           860:        FP_OR_SNAKE_FP_REGS, used only be reload_{in,out}{si,di}. 
        !           861:        (HARD_REGNO_MODE_OK): Allow all integer modes in Snake floating
        !           862:        point registers.  QImode and HImode pseudoregs may end up there
        !           863:        when using xmpyu.
        !           864: 
        !           865:        * pa.md (pic symbolic address pattern): New pattern.
        !           866:        (movsi, movdi patterns): Remove some * constraints from fp registers.
        !           867:        (pic label address pattern): Fix typo.
        !           868:        (function_label_operand patterns): New patterns for loading a
        !           869:        label address in HPUX 8.0.
        !           870:        * pa.c (finalize_pic): No real initialization is necessary for pic.
        !           871:        (output_function_prologue): Save r19, the pic offset table
        !           872:        register.  If profiling, save and restore the structure value
        !           873:        return register (r28) around the call to mcount.
        !           874:        (hppa_encode_label, function_label_operand): New functions.
        !           875:        Record if a label is a code label so it can be treated specially
        !           876:        in HPUX 8.0.
        !           877:        * pa.h (TARGET_SHARED_LIBS): New flag.  Generate code that can be
        !           878:        linked with HPUX 8.0 shared libraries.
        !           879:        (TARGET_SWITCHES): New flags: -mshared-libs and -mno-shared-libs.
        !           880:        (PIC_OFFSET_TABLE_REGNUM): This is really r19.  The preliminary
        !           881:        docs from HP were wrong.        
        !           882:        (ASM_DECLARE_FUNCTION_NAME): Specify "ENTRY" param in .EXPORT
        !           883:        directive.
        !           884:        (ENCODE_SECTION_INFO): Encode function labels.
        !           885:        (ASM_OUTPUT_LABELREF): Deal with function labels.
        !           886:        (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Don't do anything for
        !           887:        now; their only use (saving stuff during profiling) interacts in a
        !           888:        wierd way with required assembler directives at the start of a
        !           889:        function.  Instead, do the save and restore in the function
        !           890:        prologue.
        !           891:        (hppa_encode_label): Declare.
        !           892:        * pa-hpux.h, pa-ghpux.h (TARGET_DEFAULT): Link against shared
        !           893:        libraries.
        !           894:        (LINK_SPEC): Don't link against shared libraries if debugging or
        !           895:        profiling. 
        !           896:        * pa1-hpux.h, pa1-ghpux,h (TARGET_DEFAULT): Link against shared
        !           897:        libraries. 
        !           898: 
        !           899: Wed Oct 14 10:17:49 1992  Richard Stallman  ([email protected])
        !           900: 
        !           901:        * Makefile.in (gcc.xtar): Copy the objc subdir.
        !           902:        (mostlyclean): Run the mostlyclean target in the objc subdir.
        !           903:        (objc-runtime, libobjc.a, sublibobjc.a): New targets.
        !           904:        (objc, objective-c): Dep on objc-runtime.
        !           905: 
        !           906:        * objc/*: New files.
        !           907: 
        !           908: Wed Oct 14 07:17:19 1992  Richard Kenner  ([email protected])
        !           909: 
        !           910:        * alpha.md (smax, smin): Fix typo in output strings.
        !           911: 
        !           912:        * a29k.c (const_16_operand, const_24_operand): Fix typo in declaration
        !           913:        of MODE.
        !           914:        (gpc_reg_or_immediate_operand, and_operand, add_operand): Likwise.
        !           915: 
        !           916: Wed Oct 14 00:12:16 1992  Jeffrey A. Law  ([email protected])
        !           917: 
        !           918:        * pa.h (RTX_COST): Fix spacing typo.
        !           919: 
        !           920: Tue Oct 13 21:51:05 1992  Jim Wilson  ([email protected])
        !           921: 
        !           922:        * a29k.md (call, call_value): Don't use call_operand, since
        !           923:        checking for recursive calls at this point is not safe.
        !           924: 
        !           925: Tue Oct 13 18:52:17 1992  Brendan Kehoe  ([email protected])
        !           926: 
        !           927:        * cp-type2.c (my_friendly_abort): Tell them to write to bug-g++.
        !           928: 
        !           929: Tue Oct 13 18:16:12 1992  Chris Smith  ([email protected])
        !           930: 
        !           931:        * convex.h (P_tmpdir): define to use /tmp.
        !           932:        (RETURN_POPS_ARGS): correct definition to return size.
        !           933:        (ASM_IDENTIFY_GCC): output something between gcc2_compiled and
        !           934:        first function to keep gcc2_compiled out of assembler stabs.
        !           935: 
        !           936:        * convex.md (adddi3, ordi3, xordi3): check sign of CONST_INT
        !           937:        operands before using as immediates; these insns are word only.
        !           938:        (ashrdi3): don't use negative shift counts.
        !           939: 
        !           940:        * convex*.h (CPP_SPEC): define __NO_INLINE_STDLIB
        !           941: 
        !           942:        * xm-convex.h: remove temporary workaround from OS 8.0.
        !           943: 
        !           944: Tue Oct 13 14:10:15 1992  Jim Wilson  ([email protected])
        !           945: 
        !           946:        * cp-lex.c (check_newline): Verify that main_input_filename is
        !           947:        valid before using it.
        !           948: 
        !           949: Tue Oct 13 19:08:54 1992  Richard Kenner  ([email protected])
        !           950: 
        !           951:        * a29k.c: Now includes reload.h.
        !           952:        (spec_reg_operand): Validate mode and know that some regs support
        !           953:        MODE_PARTIAL_INT and some MODE_INT.
        !           954:        (call_operand, reload_memory_operand, a29k_get_reloaded_address)
        !           955:         New functions.
        !           956:        (in_operand): Allow constants with MODE_PARTIAL_INT.
        !           957:        (out_operand): Allow special registers with any mode.
        !           958:        Any MEM a word or wider is valid.
        !           959:        (extend_operator): Deleted.
        !           960:        (secondary_reload_class): A pseudo is the same as memory; we need
        !           961:        BP_REGS for multi-word memory or for bytes and halfword if -mndw.
        !           962:        (print_operand): Delete %X; add %m.
        !           963:        (print_operand, case 'F'): Check for SYMBOL_REF.
        !           964:        * a29k.h (PROMOTE_MODE, ADJUST_COST): New macros.
        !           965:        (CALL_USED_REGISTERS): LR0 is call-used.
        !           966:        (HARD_REGNO_MODE_OK): Handle MODE_PARTIAL_INT and the special
        !           967:        registers that can only hold those modes.
        !           968:        (MODES_TIEABLE_P): Clean up and handle MODE_PARTIAL_INT modes.
        !           969:        (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS): Add new
        !           970:        classes LR0_REGS, FC_REGS, and CR_REGS.
        !           971:        (REGNO_REG_CLASS, REG_CLASS_FROM_LETTER): Likewise.
        !           972:        (PREDICATE_CODES): Update for new and deleted predicates.
        !           973:        * a29k.md: Use GEN_INT when appropriate.
        !           974:        (define_attr type): New types for SQRT.
        !           975:        (call patterns): Use SCRATCH for LR0.
        !           976:        Use new predicate call_operand so that some integers can be
        !           977:        used as addresses; fix CALLI so it doesn't accept constant.
        !           978:        (EXBYTE, EXTHW, INBYTE, INHW): Use ZERO_EXTEND instead of AND
        !           979:        when combine will make it.
        !           980:        Use PSImode for BP value and don't reference BP explicitly.
        !           981:        Clean up define_expands for these operations.
        !           982:        (rotlsi3): Use PSImode pseudo for FC.
        !           983:        (sign_extend): Sign extension insns clobber BP.
        !           984:        ({load,store}_multiple): Use PSImode pseudo for CR.
        !           985:        (MTSR): Add pattern for TRUNCATE from SImode to PSImode.
        !           986:        (sqrtsf2, sqrtdf2, movpsi): New patterns.
        !           987:        (load/store bytes/halfword): Clean up to accept temporaries as
        !           988:        input and use PSImode when required.
        !           989:        (movhi, movqi): Allocate temporaries here.
        !           990:        (reload_inqi, reload_outqi, reload_inhi, reload_outhi): New
        !           991:        patterns.
        !           992:        (movdf, movdi, movti): Use SCRATCH for BP register.
        !           993:        (reload_{in,out}{df,di,ti}): New patterns.
        !           994: 
        !           995: Tue Oct 13 16:52:33 1992  Richard Stallman  ([email protected])
        !           996: 
        !           997:        * fixinc.svr4 (sys/stream.h, sys/strsubr.h): Delete spurious `extern'
        !           998:        in various structure definitions.
        !           999: 
        !          1000:        * rtlanal.c (single_set): Fix typo in REG_UNUSED check.
        !          1001: 
        !          1002:        * cse.c (simplify_binary_operation): Insure that folded >> extends
        !          1003:        the sign even if the host bootstrap compiler doesn't.
        !          1004: 
        !          1005:        * final.c (output_asm_insn): Advance over the = when processing %=.
        !          1006: 
        !          1007:        * fixincludes (stdio.h): Fix va_list when preceeded by a *.
        !          1008: 
        !          1009: Tue Oct 13 14:52:57 1992  Brendan Kehoe  ([email protected])
        !          1010: 
        !          1011:        * spc-sol2.h (STARTFILE_SPEC): Add crtbegin.o.
        !          1012:        (LIB_SPEC): Add crtend.o for running ctors/dtors.
        !          1013:        * t-sol2 (EXTRA_PARTS): Add crtbegin.o and crtend.o for C++.
        !          1014:        (FIXINCLUDES): Deleted.
        !          1015:        * configure (sparc-*-solaris2*): Set fixincludes here.
        !          1016: 
        !          1017: Tue Oct 13 20:15:45 1992  Eric Youngdale ([email protected])
        !          1018: 
        !          1019:        * make-cc1.com: Simplify extraction of YYEMPTY from cp-parse.c.
        !          1020:        Generate c-parse.y, objc-parse.y from c-parse.in if required.
        !          1021:        Pat Rankin did some of this.
        !          1022: 
        !          1023: Tue Oct 13 14:06:45 1992  Jim Wilson  ([email protected])
        !          1024: 
        !          1025:        * sparc.md (in_branch_delay): Allow fpload and fpstore.
        !          1026: 
        !          1027:        * collect2.c (main): Only install a signal handler for signals
        !          1028:        that already have handlers.
        !          1029:        (fork_execute): Don't ignore signals before calling do_wait.
        !          1030: 
        !          1031:        * i960.md: Change 'f' constraint for dest to '*f' if it is not the
        !          1032:        only alternative.  Add '*f' dest constraints to all patterns where
        !          1033:        it is valid but was previously missing.
        !          1034: 
        !          1035:        * i960.h (OVERRIDE_OPTIONS): Enable function inlining.
        !          1036:        * i960.c (g14_save_reg): Delete variable.
        !          1037:        (i960_output_call_insn): Add two new parameters arg_pointer and
        !          1038:        scratch_reg.  Save/set/restore g14 if necessary.
        !          1039:        (i960_expand_call): Delete function.
        !          1040:        * i960.md (call, call_value): No longer call i960_expand_call,
        !          1041:        instead call call_internal/call_value_internal pattern.
        !          1042:        (call_internal, call_value_internal): Rewrite patterns to pass new
        !          1043:        args to i960_output_call_insn.
        !          1044: 
        !          1045:        * sparc.md (movstrsi+1): Add `+' to constraints for clobbered inputs.
        !          1046: 
        !          1047:        * i960.c (i960_output_call_insn):  Emit bx instead of b, callx
        !          1048:        instead of callj.
        !          1049: 
        !          1050:        * sparc.c (sparc_frw_output_function_prologue): Frame pointer base
        !          1051:        must be same as for regular sparc code.
        !          1052: 
        !          1053: Tue Oct 13 06:02:03 1992  Tom Wood  ([email protected])
        !          1054: 
        !          1055:        * loop.c (loop_optimize): Verify that max_uid_for_loop is still
        !          1056:        larger than the uid of any insn.  Increase the number of exit
        !          1057:        blocks from 4 to 32 per loop.
        !          1058:        (find_and_verify_loops): Stop trying to relocate exit blocks when
        !          1059:        allocating a new label would exceed max_uid_for_loop.
        !          1060: 
        !          1061:        * combine.c (subst): Don't change a conditional branch into a
        !          1062:        conditional move.
        !          1063: 
        !          1064:        * m88k.md (ext shift patterns): No longer needed.
        !          1065: 
        !          1066:        * m88k.c (mostly_false_jump): Recognize a sequence properly.
        !          1067:  
        !          1068: Mon Oct 12 22:31:37 1992  Jeffrey A. Law  ([email protected])
        !          1069: 
        !          1070:        * pa.h (LEGITIMIZE_ADDRESS): Fix typo.
        !          1071: 
        !          1072: Tue Oct 13 00:14:09 1992  H Lu  ([email protected])
        !          1073: 
        !          1074:        * Makefile.in (install-common): Put - on cmd that handles protoize.
        !          1075:        (gcc.o, cccp.o): Define TOOLDIR for the compilation.
        !          1076:        (all HOST_PREFIX_1 targets): Fix typos.
        !          1077: 
        !          1078:        * x-linux (cpp.a, linux.a, cc1.a, cc1plus.a, gcc.a): Targets deleted.
        !          1079:        (LD, ALIBS, STANDARD_STARTFILE_PREFIX, GPLUSPLUS_INCLUDE_DIR):
        !          1080:        Vars deleted.
        !          1081: 
        !          1082:        * i386linux.h: Delete NO_JUMPTABLE conditional and contents.
        !          1083:        (GPLUSPLUS_INCLUDE_DIR): Defined.
        !          1084:        (STARTFILE_SPEC): Changed.
        !          1085: 
        !          1086:        * gen*.c: Include hconfig.h, not config.h.
        !          1087: 
        !          1088: Mon Oct 12 16:25:22 1992  Richard Stallman  ([email protected])
        !          1089: 
        !          1090:        * configure.bat, vmsconfig.com: Make hconfig.h.
        !          1091: 
        !          1092:        * vax.h (PRINT_OPERAND): Detect `double' constants by DFmode,
        !          1093:        since VOIDmode means an integer.
        !          1094: 
        !          1095:        * mips.h (DEBUG_REGISTER_NAMES): New macro definition.
        !          1096:        * print-rtl.c (reg_names):
        !          1097:        Make it static.  Use DEBUG_REGISTER_NAMES if that's defined.
        !          1098:        * regclass.c (reg_names): Reinstate the definition here.
        !          1099: 
        !          1100:        * fixinc.svr4: Delete excess fi in fixing stat.h.
        !          1101: 
        !          1102: Mon Oct 12 08:10:37 1992  James Van Artsdalen  ([email protected])
        !          1103: 
        !          1104:        * Makefile.in (install-fixincludes): Only delete an existing
        !          1105:        syslimits.h if we install limits.h over it.
        !          1106: 
        !          1107:        * i386.h (PRINT_REG): Undo Oct 11 change.
        !          1108:        (DEBUG_PRINT_REG): New macro, used from print-rtl.c.
        !          1109: 
        !          1110:        * conditions.h (CC_NOT_SIGNED): New macro.
        !          1111:        * final.c (alter_cond): If CC_NOT_SIGNED, convert signed
        !          1112:        conditions to unsigned.
        !          1113: 
        !          1114:        * i386.md (cmpstrM patterns): Compare strings of unsigned chars,
        !          1115:        not strings of signed chars.
        !          1116: 
        !          1117: Mon Oct 12 06:31:13 1992  Richard Kenner  ([email protected])
        !          1118: 
        !          1119:        * combine.c (try_combine): Save DEST of NI2PAT before calling
        !          1120:        recog_for_combine, which might make it a PARALLEL.
        !          1121: 
        !          1122:        * emit-rtl.c (gen_lowpart_common): Allow MODE_PARTIAL_INT where
        !          1123:        MODE_INT is allowed.
        !          1124: 
        !          1125:        * combine.c (try_combine): Properly call single_set when validating
        !          1126:        the result of a define_split.
        !          1127: 
        !          1128: Mon Oct 12 00:24:29 1992  Richard Stallman  ([email protected])
        !          1129: 
        !          1130:        * calls.c (calls_alloca): Don't look within DECL_INITIAL if it's 0.
        !          1131: 
        !          1132:        * varasm.c (simplify_subtraction): New function.
        !          1133:        * rtl.h (simplify_subtraction): Declared.
        !          1134:        * final.c (output_addr_const): Call it.
        !          1135: 
        !          1136:        * print-rtl.c (DEBUG_PRINT_REG): Renamed from PRINT_REG.
        !          1137:        (print_rtx): Use DEBUG_PRINT_REG.
        !          1138: 
        !          1139: Sun Oct 11 16:27:53 1992  Richard Kenner  ([email protected])
        !          1140: 
        !          1141:        * genrecog.c (merge_trees): When splitting, remember to clear DUPNO
        !          1142:        in addition to the other things we can test.
        !          1143: 
        !          1144:        * recog.c (general_operand, immediate_operand, const_double_operand):
        !          1145:        Allow CONST_INT with MODE_PARTIAL_INT.
        !          1146:        (nonmemory_operand): Likewise.
        !          1147: 
        !          1148: Sun Oct 11 07:53:39 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          1149: 
        !          1150:        * xm-i38v4.h,xm-aix386.h (USE_C_ALLOCA): New macro.  Define if not
        !          1151:        using GNU C's builtin alloca.
        !          1152: 
        !          1153:        * i386.c (notice_update_cc): Only set CC_IN_80387 for float compares.
        !          1154: 
        !          1155:        * i386.h (PRINT_REG): Make register name arrays static within this
        !          1156:        macro.
        !          1157: 
        !          1158: Sun Oct 11 01:41:06 1992  Richard Stallman  ([email protected])
        !          1159: 
        !          1160:        * jump.c (jump_optimize): Don't optimize jumps to store-flag insns
        !          1161:        when BLKmode values are being compared.
        !          1162: 
        !          1163: Sat Oct 10 16:51:08 1992  Richard Stallman  ([email protected])
        !          1164: 
        !          1165:        * print-rtl.c (print_rtx): Print hard reg name as well as number.
        !          1166:        (PRINT_REG): New macro with default definition.
        !          1167:        (reg_name): Moved here.
        !          1168:        * regclass.c (reg_name): Deleted.
        !          1169: 
        !          1170: Sat Oct 10 02:27:14 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          1171: 
        !          1172:        * i386sco.h (TARGET_DEFAULT): New macro - don't make TARGET_IEEE_FP
        !          1173:        default for SCO.
        !          1174: 
        !          1175: Sat Oct 10 04:52:06 1992  Richard Stallman  ([email protected])
        !          1176: 
        !          1177:        * function.h (struct function): New fields const_rtx_hash_table,
        !          1178:        const_rtx_sym_hash_table, first_pool, last_pool, pool_offset.
        !          1179:        * function.c (pop_function_context, push_function_context):
        !          1180:        Call {save,restore}_varasm_status.
        !          1181:        * varasm.c: Include function.h.
        !          1182:        (restore_varasm_status, save_varasm_status): New fns.
        !          1183:        (init_const_rtx_hash_table): Allocate the hash tables in obstack.
        !          1184:        (force_const_mem): Don't use CONST_DOUBLE_MEM for nested fns.
        !          1185:        (clear_const_double_mem): Do nothing for nested fns.
        !          1186:        * Makefile.in (varasm.o): Dep on function.h.
        !          1187: 
        !          1188: Fri Oct  9 18:16:18 1992  Brendan Kehoe  ([email protected])
        !          1189: 
        !          1190:        * cp-decl.c (duplicate_decls): Only find out if olddecl is a
        !          1191:        friend after we know it's not a TREE_LIST.
        !          1192: 
        !          1193: Fri Oct  9 18:10:19 1992  Jim Wilson  ([email protected])
        !          1194: 
        !          1195:        * sparc.c (sparc_type_code): Return reasonable result for COMPLEX_TYPE.
        !          1196: 
        !          1197: Fri Oct  9 14:33:26 1992  Tom Wood  ([email protected])
        !          1198: 
        !          1199:        * reorg.c (start_of_epilogue_needs): New variable.
        !          1200:        (mark_target_live_regs): Add in start_of_epilogue_needs when
        !          1201:        NOTE_INSN_EPILOGUE_BEG is scanned.
        !          1202:        (dbr_schedule): Compute start_of_epilogue_needs and update
        !          1203:        end_of_function_needs to include sets by all instructions
        !          1204:        following NOTE_INSN_EPILOGUE_BEG.
        !          1205: 
        !          1206:        * m88k.md (return): Always available once reload has completed.
        !          1207:        (epilogue): Use a return insn rather than an indirect jump.
        !          1208: 
        !          1209: Fri Oct  9 12:36:54 1992  Richard Stallman  ([email protected])
        !          1210: 
        !          1211:        * spc-sol2.h (DBX_DEBUGGING_INFO): Defined.
        !          1212: 
        !          1213:        * function.c (aggregate_value_p): Return 1 if regs we would use
        !          1214:        are not all call-clobbered.
        !          1215: 
        !          1216:        * stmt.c (POPSTACK): Pop discarded elts off all the stacks as we go.
        !          1217: 
        !          1218: Fri Oct  9 07:30:14 1992  Richard Kenner  ([email protected])
        !          1219: 
        !          1220:        * reorg.c (mark_target_live_regs): Fix bug in last change.
        !          1221: 
        !          1222:        * combine.c (subst, case SUBREG): Don't make a new REG for
        !          1223:        stack, frame, or arg pointer.
        !          1224:        * emit-rtl.c (gen_lowpart_common, gen_highpart, operand_subword):
        !          1225:        Likewise.
        !          1226: 
        !          1227:        * local-alloc.c (optimize_reg_copy_1): Tighten up code to properly
        !          1228:        handle the case when SRC or DEST is a multi-word hard register
        !          1229:        and only some parts of the register are set or used.  Also, avoid
        !          1230:        updating register status for DEST if we can't do the optimization.
        !          1231: 
        !          1232:        * jump.c (jump_optimize): Only use a REG as a target.
        !          1233: 
        !          1234:        * alpha.c (alpha_builtin_saveregs): Don't use value of NREGS greater
        !          1235:        than 6 when computing ARGSIZE.
        !          1236: 
        !          1237:        * va-alpha.h (va_arg): Put parens around all uses of __VA arg.
        !          1238: 
        !          1239: Thu Oct  8 18:45:00 1992  Arne H. Juul  ([email protected])
        !          1240: 
        !          1241:        * Makefile.in (install-common-headers): added missing 'then'
        !          1242: 
        !          1243: Thu Oct  8 15:52:22 1992  Michael Meissner  ([email protected])
        !          1244: 
        !          1245:        * mips.h (SELECT_RTX_SECTION): Rename macro from obsolete name
        !          1246:        SELECT_SECTION_MODE.
        !          1247: 
        !          1248:        * i386rose.h (whole file): Remove #ifdef before #undef of macros.
        !          1249:        (LEGITIMATE_CONSTANT_P): Define, so that when half-pic is on,
        !          1250:        half-pic addresses are not considered legitimate.
        !          1251:        (SELECT_RTX_SECTION): If putting a half-pic pointer that is
        !          1252:        loaded, put the pointer into the data section, rather than the
        !          1253:        readonly_data_section.
        !          1254:        (SELECT_SECTION): Define.
        !          1255:        (ASM_OUTPUT_DOUBLE): If not cross compiling, emit double as two
        !          1256:        longs, otherwise emit .double directive.
        !          1257:        (ASM_OUTPUT_FLOAT): If not cross compiling, emit float as long,
        !          1258:        otherwise emit .float directive.
        !          1259:        (perform_fixdfsi): Copy arg to memory variable.
        !          1260:        (SIZE_TYPE): Define to be long unsigned int.
        !          1261:        (PTRDIFF_TYPE): Define to be int.
        !          1262:        (WCHAR_TYPE)L: Define to be unsigned int.
        !          1263: 
        !          1264:        * i386.md (movsi): Remove obsolete half-pic code.
        !          1265:        (call insns): For half-pic insns, force address into register.
        !          1266: 
        !          1267: Thu Oct  8 14:22:05 1992  Richard Stallman  ([email protected])
        !          1268: 
        !          1269:        * Makefile.in (install-common-headers): Fix dir in chmods for assert.h.
        !          1270: 
        !          1271:        * va-i860.h (__savereg, va_arg): Put uses of __va in parens.
        !          1272: 
        !          1273:        * vax.h (PRINT_OPERAND): Define new code, D.
        !          1274:        * vax.md (movdi): Use D code for operand 1.
        !          1275: 
        !          1276: Thu Oct  8 13:23:25 1992  Jeffrey A. Law  ([email protected])
        !          1277: 
        !          1278:        * pa.md (fp_alu function unit, case fpcc): Fpcc instructions use
        !          1279:        the fpalu unit.  In the most common case their result will be used
        !          1280:        in a ftest instruction.  Minimum distance between the fcmp and 
        !          1281:        ftest instruction is 4.
        !          1282: 
        !          1283: Thu Oct  8 06:41:15 1992  Tom Wood  ([email protected])
        !          1284: 
        !          1285:        * function.c (assign_parms): Provide a safe value for
        !          1286:        DECL_INCOMING_RTL in case of syntax errors.
        !          1287: 
        !          1288:        * dwarfout.c (dwarfout_init, dwarfout_finish): Don't output labels
        !          1289:        or .debug_aranges entries for .data1 and .rodata1 as these
        !          1290:        sections aren't currently used.
        !          1291: 
        !          1292: Thu Oct  8 04:44:17 1992  Richard Kenner  ([email protected])
        !          1293: 
        !          1294:        * reorg.c (mark_target_live_regs): Look at USE insns made by
        !          1295:        update_block when scanning forward past target.
        !          1296:        (mark_target_live_regs, dbr_schedule): Use GET_RTX_CLASS.
        !          1297: 
        !          1298:        * cse.c (PATHLENGH): Change from 20 to 10 to speed up compilations.
        !          1299: 
        !          1300: Thu Oct  8 03:07:33 1992  Richard Stallman  ([email protected])
        !          1301: 
        !          1302:        * fold-const.c (invert_truthvalue): Never alter ARG.
        !          1303: 
        !          1304:        * Makefile.in (TAGS): Exclude =*.[chy] from tags table.
        !          1305: 
        !          1306:        * c-lex.c (yylex): For floats, use REAL_VALUES_LESS to distinguish
        !          1307:        underflow from overflow.  Delete special case for 0.0.
        !          1308: 
        !          1309: Wed Oct  7 16:25:19 1992  Tom Wood  ([email protected])
        !          1310: 
        !          1311:        * dwarfout.c (dwarfout_{begin,end}_function): New functions.
        !          1312:        (body_{begin,end}_attribute): New functions.
        !          1313:        (dwarf_attr_name): Print AT_body_begin and AT_body_end.
        !          1314:        (output_{local,global}_subroutine_die): Output the new attributes.
        !          1315:        * dwarf.h (enum dwarf_attribute): Add At_body_begin and AT_body_end.
        !          1316:        * final.c (final_scan_insn): Call dwarfout_begin_function.
        !          1317:        (final_end_function): Call dwarfout_end_function.
        !          1318: 
        !          1319:        * m88k.h (FASTEST_ALIGNMENT): Define as 8 for -m88110 otherwise 4.
        !          1320:        (CONSTANT_ALIGNMENT, DATA_ALIGNMENT): Base on FASTEST_ALIGNMENT.
        !          1321:        * m88k.md (movstrsi): No predicate is needed for the source or
        !          1322:        destination.
        !          1323:        * m88k.c (best_from_align): Add a target processor dimension for
        !          1324:        -m88000, -m88110, and -m88100.
        !          1325:        (expand_block_move): Choose method and limits based on -m88xxx option.
        !          1326:        (block_move_no_loop): Extend to allow DImode.
        !          1327:        * m88k-move.sh: Add the modules moveDI96x and moveDI41x through
        !          1328:        moveDI47x.
        !          1329:        * t-m88k, t-m88kluna, t-m88ksvr4: New modules added to MOVE_ASM.
        !          1330: 
        !          1331:        * m88k.c (output_call): Use different syntax for GAS.
        !          1332: 
        !          1333:        * m88k.h (READONLY_DATA_SECTION): Don't override svr4.h
        !          1334:        (ASM_OUTPUT_CASE_LABEL): For svr4, use .rodata.
        !          1335: 
        !          1336: Wed Oct  7 15:47:19 1992  Richard Stallman  ([email protected])
        !          1337: 
        !          1338:        * configure (i486-ncr-sysv4): Use i386v4.h.
        !          1339:        (i386-*-sysv4, i386-*-linux, i386-*-sysv): Handle 486 too.
        !          1340:        (i486-*-sysv4, i486-*-linux): Deleted.
        !          1341:        * i486v4.h, i486linux.h: Files deleted.
        !          1342: 
        !          1343: Wed Oct  7 12:40:00 PDT 1992  Ron Guilmette (rfg at netcom.com)
        !          1344: 
        !          1345:        * populate (progname):  Just the basename of $0 please.
        !          1346:        (target_dir):  Use abs_target_dir and rel_target_dir for clarity.
        !          1347:        (source_dir):  Use abs_source_dir and rel_source_dir for clarity.
        !          1348:        (*):  List input and output dirs on startup.
        !          1349:        (*):  Don't be so verbose; Don't echo names of output dirs/files as
        !          1350:        they are created.
        !          1351: 
        !          1352:        * fixinc.svr4 (<sys/signal.h>):  Fix types of SIG_DFL, SIG_ERR,
        !          1353:        SIG_IGN, and SIG_HOLD.
        !          1354:        (<sys/stat.h>): Turn definitions of stat, lstat, fstat, and mknod
        !          1355:        into ANSI syntax and add __ to variables used.
        !          1356: 
        !          1357:        * c-parse.in (component_decl_list):  Do pedwarn for missing semicolon
        !          1358:        after last field decl.
        !          1359: 
        !          1360: Wed Oct  7 09:49:34 1992  Michael Meissner  ([email protected])
        !          1361: 
        !          1362:        * decstatn.h (LINK_SPEC): Don't define if it is already defined,
        !          1363:        ie dec-osf1.h has included decstatn.h.
        !          1364: 
        !          1365:        * dec-osf1.h (MACHINE_TYPE): Redefine to say DEC OSF/1 instead of
        !          1366:        ultrix.
        !          1367: 
        !          1368: Wed Oct  7 03:50:11 1992  Richard Stallman  ([email protected])
        !          1369: 
        !          1370:        * configure (target_cpu_default): Var renamed from target_default.
        !          1371:        Set it to 2, for a 486.  Define TARGET_CPU_DEFAULT macro.
        !          1372: 
        !          1373:        * i386.h (TARGET_CPU_DEFAULT): Add default definition.
        !          1374:        (TARGET_SWITCHES): Include that in the default.
        !          1375: 
        !          1376:        * toplev.c (main): Recover correctly from invalid -Wid-clash option.
        !          1377: 
        !          1378:        * cccp.c (finclude): Set fp->buf earlier, so it's freed on error.
        !          1379: 
        !          1380:        * Makefile.in (install-common-headers): Avoid ! operator, for assert.h.
        !          1381: 
        !          1382: Tue Oct  6 20:21:21 1992  Jim Wilson  ([email protected])
        !          1383: 
        !          1384:        * unroll.c (copy_loop_body, JUMP_INSN case): Delete abort in the
        !          1385:        code for setting the JUMP_LABEL field.
        !          1386: 
        !          1387: Tue Oct  6 19:29:19 1992  Brendan Kehoe  ([email protected])
        !          1388: 
        !          1389:        * cp-call.c (build_overload_call_real): If `functions' is an
        !          1390:        ADDR_EXPR (as with operator new and delete), give the name of its
        !          1391:        argument as the error fn.
        !          1392: 
        !          1393: Tue Oct  6 14:15:15 1992  Richard Stallman  ([email protected])
        !          1394: 
        !          1395:        * configure: Correct conditional in setting build_xm_file.
        !          1396: 
        !          1397:        * function.c (get_first_block_beg): New function.
        !          1398: 
        !          1399:        * cross-make (assertdir): Override usual definition.
        !          1400:        * Makefile.in (install-common-headers): chmod assert.h in proper dir.
        !          1401:        Use $(assertdir).
        !          1402:        (assertdir): New variable.
        !          1403:        (install-dir): Create dir $(includedir).
        !          1404:        (includedir): Make this /usr/local/include.
        !          1405: 
        !          1406: Tue Oct  6 12:05:35 1992  Jeffrey A. Law  ([email protected])
        !          1407: 
        !          1408:        * pa.md (memory function unit, load case): Loads take two cycles,
        !          1409:        not one.
        !          1410: 
        !          1411: Tue Oct  6 07:56:05 1992  Torbjorn Granlund  ([email protected])
        !          1412: 
        !          1413:        * pa.md (adddi3): Fix typo.
        !          1414: 
        !          1415: Tue Oct  6 04:03:40 1992  Richard Stallman  ([email protected])
        !          1416: 
        !          1417:        * m68k.c (floating_exact_log2, standard_68881_constant_p): 
        !          1418:        (standard_sun_fpa_constant_p): Use REAL_VALUE_FROM_CONST_DOUBLE.
        !          1419:        (print_operand): Likewise.
        !          1420: 
        !          1421: Mon Oct  5 18:39:29 1992  Brendan Kehoe  ([email protected])
        !          1422: 
        !          1423:        * tree.h (TREE_VIA_PROTECTED): Set protected_flag, not static_flag.
        !          1424: 
        !          1425: Mon Oct  5 18:27:08 1992  Richard Stallman  ([email protected])
        !          1426: 
        !          1427:        * Makefile.in ($(srcdir)/INSTALL): Add -D INSTALLONLY.
        !          1428: 
        !          1429: Mon Oct  5 14:46:08 1992  Brendan Kehoe  ([email protected])
        !          1430: 
        !          1431:        * cp-parse.y (unary_expr): Use the `new' rule when looking for
        !          1432:        something like `new(foo) char[10]'.
        !          1433: 
        !          1434:        * cp-decl.c (grokparms): Don't call digest_init on default args.
        !          1435: 
        !          1436: Mon Oct  5 02:21:06 1992  Richard Stallman  ([email protected])
        !          1437: 
        !          1438:        * reload1.c (allocate_reload_reg): Always check for asm
        !          1439:        on failure instead of simply aborting.
        !          1440: 
        !          1441:        * optabs.c (init_optabs): Use cabs as the only libcall for abs.
        !          1442: 
        !          1443: Mon Oct  5 03:10:14 1992  Mark Eichin  (eichin at tweedledumber.cygnus.com)
        !          1444: 
        !          1445:        * c++ (numargs): $# was used after set was called; instead, save
        !          1446:        $# in $numargs and use that value instead.
        !          1447: 
        !          1448: Sun Oct  4 12:34:00 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          1449: 
        !          1450:        * dwarfout.c (hard-reg-set.h):  Included to get decl of `reg_names'.
        !          1451:        (PRINT_REG):  Default definition added.
        !          1452:        (dwarf_last_decl):  Variable declaration added.
        !          1453:        (output_reg_number):  New function; handle -fverbose-asm reg printing.
        !          1454:        (output_mem_loc_descriptor, output_loc_descriptor):  Call it.
        !          1455:        (output_decl):  Set `dwarf_last_decl' each time this fn is called.
        !          1456:        * i386.h (hi_reg_name, qi_reg_name, qi_high_reg_name): Declared.
        !          1457:        (PRINT_REG):  Definition moved from i386.c.
        !          1458:        * i386.c (hi_reg_name, qi_reg_name, qi_high_reg_name): Not static.
        !          1459:        (PRINT_REG):  Definition moved to i386.h.
        !          1460: 
        !          1461: Sun Oct  4 00:53:37 1992  Richard Stallman  ([email protected])
        !          1462: 
        !          1463:        * c-decl.c (shadow_tag_warned): Use pedwarn for useless keyword.
        !          1464: 
        !          1465:        * c-lex.c (readescape): No warning if digits in \x are all 0's.
        !          1466: 
        !          1467: Sat Oct  3 14:37:39 1992  Richard Stallman  ([email protected])
        !          1468: 
        !          1469:        * optabs.c (expand_complex_abs): New function.
        !          1470:        * expr.h (expand_complex_abs): Add declaration.
        !          1471: 
        !          1472: Sat Oct  3 07:29:09 1992  Michael Meissner  ([email protected])
        !          1473: 
        !          1474:        * configure (mips-dec-osf1): Use x-dec-osf1 instead of x-decstatn.
        !          1475: 
        !          1476:        * x-dec-osf1 (new file): Like x-decstatn, except that INSTALL is
        !          1477:        installbsd -c.
        !          1478: 
        !          1479: Sat Oct  3 05:04:43 1992  Tom Wood  ([email protected])
        !          1480: 
        !          1481:        * toplev.c (rest_of_decl_compilation): Don't call
        !          1482:        dwarfout_file_scope_decl as this causes duplicates.
        !          1483: 
        !          1484: Sat Oct  3 01:35:23 1992  Richard Stallman  ([email protected])
        !          1485: 
        !          1486:        * explow.c (allocate_dynamic_stack_space) [MUST_ALIGN]:
        !          1487:        Always add to size, always round up to STACK_BOUNDARY,
        !          1488:        always round the address.
        !          1489: 
        !          1490:        * rtl.h (gen_realpart, gen_imagpart): Declared.
        !          1491: 
        !          1492: Fri Oct  2 20:03:53 1992  Richard Stallman  ([email protected])
        !          1493: 
        !          1494:        * emit-rtl.c (gen_realpart, gen_imagpart): New functions.
        !          1495:        * optabs.c (expand_unop, expand_binop): Use them.
        !          1496:        * expr.c (expand_expr): Use them.
        !          1497: 
        !          1498:        * cccp.c (main): Handle -U before -D (and -A).
        !          1499: 
        !          1500:        * assert.h: Add magic comment at beginning.
        !          1501:        * Makefile.in (includedir): New variable.
        !          1502:        (USER_H): assert.h removed from value.
        !          1503:        (install-common-headers): Install assert.h separately, in includedir,
        !          1504:        but not if file exists and lacks the magic comment.
        !          1505: 
        !          1506:        * reload1.c (reload): Move test for failure to find any group
        !          1507:        to after the loop over i.  Also check that all the regnos fit
        !          1508:        below FIRST_PSEUDO_REGISTER.
        !          1509: 
        !          1510:        * expr.c (expand_expr):
        !          1511:        For ABS_EXPR, give expand_unop the operand's mode.
        !          1512: 
        !          1513: Fri Oct  2 14:58:06 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          1514: 
        !          1515:        * i386v4.h (DBX_REGISTER_NUMBER):  Don't abort here on pseudo-regs.
        !          1516:        * dwarfout.c (output_mem_loc_descriptor, output_loc_descriptor):
        !          1517:        Catch cases of bogus DECL_RTL values involving pseudo-regs (for all
        !          1518:        target systems) and print an annoying message if we ever see such a
        !          1519:        case.
        !          1520: 
        !          1521: Thu Oct  1 17:23:08 1992  Michael Meissner  ([email protected])
        !          1522: 
        !          1523:        * mips-tfile.c (various): Rename some of the index variables and
        !          1524:        fields to indx, so that it doesn't conflict with the BSD
        !          1525:        index function, which may be #define'd to strchr.  However, the
        !          1526:        MIPS symbol table has a field called index, so #undef index and
        !          1527:        rindex, and write our own functions local_index and local_rindex.
        !          1528: 
        !          1529:        * mips-bsd.h (CPP_PREDEFINES): Add single underscore in front of
        !          1530:        each of the defines, for RISC-OS 5.0 compatibility.
        !          1531: 
        !          1532:        * mips-sysv.h (CPP_PREDEFINES): Add single underscore in front of
        !          1533:        each of the defines, for RISC-OS 5.0 compatibility.
        !          1534: 
        !          1535:        * mips-svr4.h (CPP_PREDEFINES): Add single underscore in front of
        !          1536:        each of the defines, for RISC-OS 5.0 compatibility.
        !          1537: 
        !          1538:        * mips.h (CPP_PREDEFINES): Add single underscore in front of each
        !          1539:        of the defines, for RISC-OS 5.0 compatibility.
        !          1540: 
        !          1541:        * mips.c (override_options): Only call setvbuf to make stderr line
        !          1542:        buffered for -mstats on Ultrix, and OSF/1.
        !          1543: 
        !          1544: Thu Oct  1 15:18:55 1992  Jim Wilson  ([email protected])
        !          1545: 
        !          1546:        * reload1.c (emit_reload_insns): Add a case to handle
        !          1547:        SECONDARY_MEMORY_NEEDED in the SECONDARY_OUTPUT_RELOAD_CLASS code.
        !          1548:        * sparc.h (SECONDARY_INPUT_RELOAD_CLASS): Also need a temp reg
        !          1549:        when loading HImode and QImode values from memory to FP_REGS.
        !          1550:        (SECONDARY_OUTPUT_RELOAD_CLASS): New macro.  Define this to handle
        !          1551:        HImode and QImode stores from FP_REGS to memory similar to above.
        !          1552: 
        !          1553: Thu Oct  1 13:36:52 1992  Richard Stallman  ([email protected])
        !          1554: 
        !          1555:        * cccp.c (rescan): If traditional, recognize # only at bol.
        !          1556: 
        !          1557:        * expr.c (expand_expr): Just return the lowpart or highpart.
        !          1558: 
        !          1559:        * configure (i386-*-linux, i486-*-linux): New alternatives.
        !          1560:        * i386linux.h, i486linux.h, xm-linux.h: New files.
        !          1561: 
        !          1562:        * optabs.c (expand_unop): Handle complex negate and abs val.
        !          1563:        (init_optabs): Set up libcalls for complex abs.
        !          1564:        (init_complex_libcalls): New function.
        !          1565: 
        !          1566: Thu Oct  1 22:58:45 1992  Eric Youngdale ([email protected])
        !          1567: 
        !          1568:        * make-cc1.com: Extract line containing "#define YYEMPTY" from
        !          1569:        cp-parse.c, and append to cp-parse.h (a la Makefile.in).
        !          1570: 
        !          1571:        * cccp.c (main) [VMS]: Use .obj, not .o, in dependencies output.
        !          1572: 
        !          1573: Thu Oct  1 17:15:49 1992  Chip Salzenberg  ([email protected])
        !          1574: 
        !          1575:        * c-common.c (declare_function_name): __FUNC__ variables
        !          1576:        are compiler-created, so set DECL_SOURCE_LINE to zero.
        !          1577:        * c-decl.c (pushdecl): Internally generated vars can be
        !          1578:        detected with DECL_SOURCE_LINE of zero, not DECL_IGNORED_P.
        !          1579: 
        !          1580: Thu Oct  1 13:07:21 1992  Jeffrey A. Law  ([email protected])
        !          1581: 
        !          1582:        * pa.c (emit_move_sequence): When making a reference to the data
        !          1583:        space before reload, emit an insn sequence which is much more 
        !          1584:        likely to create "addil" instructions rather than "ldil; add" 
        !          1585:        sequences.  Doing so greatly reduces the chance of running into a
        !          1586:        HPUX linker bug when compiling kernels.
        !          1587: 
        !          1588:        * pa.h (TARGET_KERNEL): New switch "-mkernel" which forces gcc to
        !          1589:        avoid "ldil; add" sequences when %r29 and instead generate "addil"
        !          1590:        sequences.  This avoids a HPUX linker bug when compiling kernels.
        !          1591:        * pa.md (add high part and dp register): Split into two patterns,
        !          1592:        one for normal code, one for kernels.  Kernel version only allows
        !          1593:        "r1" as the destination register.
        !          1594: 
        !          1595:        * pa.h (LEGITIMIZE_ADDRESS, SYMBOL_REF case): Emit a sequence
        !          1596:        which will cause "addil" instructions to be emitted instead of 
        !          1597:        "ldil; add" sequences.
        !          1598: 
        !          1599: Thu Oct  1 01:09:05 1992  Richard Stallman  ([email protected])
        !          1600: 
        !          1601:        * c-parse.in, cond.awk: New files.
        !          1602:        * Makefile.in (c-parse.y, objc-parse.y): Construct from c-parse.in.
        !          1603:        (gcc.xtar): Depend on c-parse.y, objc-parse.y.
        !          1604:        (realclean): Delete c-parse.y, objc-parse.y.
        !          1605: 
        !          1606:        * explow.c (allocate_dynamic_stack_space): If STACK_DYNAMIC_OFFSET
        !          1607:        or STACK_POINTER_OFFSET, always round address up to BIGGEST_ALIGNMENT.
        !          1608: 
        !          1609:        * gstddef.h: If _ANSI_H_, undef _PTRDIFF_T_, _SIZE_T_, _WCHAR_T.
        !          1610: 
        !          1611:        * gvarargs.h: In the first part (instead of va-*.h), define
        !          1612:        __gnuc_va_list, as in gstdarg.h.  Always use __gunc_va_list
        !          1613:        as basis for defining va_list.
        !          1614:        Move interaction with BSD-NET2 down to where va_list itself is defined.
        !          1615: 
        !          1616:        * cccp.c (do_include): Delete unreachable goto after '"' case.
        !          1617: 
        !          1618: Thu Oct  1 16:57:22 1992  Peter Schauer ([email protected])
        !          1619: 
        !          1620:        * dpx2g.h (NO_DOLLAR_IN_LABEL): Undef because gas understands dollars
        !          1621:        in labels and gdb expects them if configured for gas.
        !          1622:        (STARTFILE_SPEC): Include huge.o to be compatible with native cc.
        !          1623:        (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR):
        !          1624:        (CTOR_LISTS_DEFINED_EXTERNALLY, DO_GLOBAL_DTORS_BODY):
        !          1625:        (STARTFILE_SPEC): Conditionally redefine for a collectless version
        !          1626:        of gcc if USE_COLLECT2 is not defined.
        !          1627: 
        !          1628:        * dpx2.ifile: New ld command file to support not using collect2.
        !          1629: 
        !          1630: Wed Sep 30 17:08:32 1992  Richard Stallman  ([email protected])
        !          1631: 
        !          1632:        * libgcc2.c (__eprintf): Do nothing if inhibit_eprintf is defined.
        !          1633: 
        !          1634:        * pbd.h, spc-sol2.h, tower.h (NO_UNDERSCORES): Deleted.
        !          1635: 
        !          1636:        * Makefile.in (install-fixincludes): rm syslimits.h before installing.
        !          1637:        Install it with cp.  Add an else-part to the if that installs it.
        !          1638: 
        !          1639:        * c-decl.c (start_enum): Push obstacks, switch to permanent if global.
        !          1640:        (finish_enum): Pop obstacks.
        !          1641:        (store_parm_decls): When clearing ->names, clear out the values
        !          1642:        from the identifiers, restore shadowed values, and clear ->shadowed.
        !          1643: 
        !          1644:        * c-decl.c (grokdeclarator): Don't warn of const or volatile function
        !          1645:        in a system header file.
        !          1646: 
        !          1647:        * sdbout.c: Don't use system syms.h on hpux.
        !          1648: 
        !          1649:        * cccp.c (do_xifdef): Skip all kinds of whitespace, in bof test.
        !          1650: 
        !          1651: Wed Sep 30 15:09:10 1992  Jim Wilson  ([email protected])
        !          1652: 
        !          1653:        * sparc.md (orcc peephole): Don't accept FP reg for operand 0.
        !          1654: 
        !          1655: Wed Sep 30 00:47:48 1992  Richard Stallman  ([email protected])
        !          1656: 
        !          1657:        * gstdarg.h, gvarargs.h: Use <...> to include va-*.h.
        !          1658: 
        !          1659:        * c-decl.c (start_struct): Push the obstacks.
        !          1660:        Switch to permanent if at top level.
        !          1661:        (finish_struct): Pop them.
        !          1662: 
        !          1663:        * c-decl.c (store_parm_decls): If we have (erroneously) a prototype
        !          1664:        and old-style parm decls, throw away the old-style parm decls.
        !          1665: 
        !          1666:        * configure: Default $build after $host.  Canonicalize all three
        !          1667:        config names before the main dispatch and save in $canon_host, etc.
        !          1668:        Write these into config.status and on terminal at the end.
        !          1669: 
        !          1670: Tue Sep 29 18:41:54 1992  Jim Wilson  ([email protected])
        !          1671: 
        !          1672:        * unroll.c (find_splittable_givs): recog_memoized failure return
        !          1673:        is -1 not 0.
        !          1674: 
        !          1675: Tue Sep 29 22:19:48 1992  Roland McGrath  ([email protected])
        !          1676: 
        !          1677:        * config.sub (os handling): Recognize `linux' as a valid os.
        !          1678: 
        !          1679: Tue Sep 29 16:05:47 1992  Richard Stallman  ([email protected])
        !          1680: 
        !          1681:        * limitx.h: Use <...> in #include.
        !          1682: 
        !          1683:        * Makefile.in (ENQUIRE_CFLAGS): Remove -DNO_SC.
        !          1684: 
        !          1685: Tue Sep 29 10:14:27 1992  Richard Kenner  ([email protected])
        !          1686: 
        !          1687:        * optabs.c (expand_binop): Convert X - C to X + (-C).
        !          1688: 
        !          1689: Mon Sep 28 22:44:17 1992  Jim Wilson  ([email protected])
        !          1690: 
        !          1691:        * reload.c (find_reloads_address): If tem != ad, then create a new
        !          1692:        mem to hold it and store it back into memrefloc.
        !          1693: 
        !          1694: Mon Sep 28 10:44:55 1992  Chip Salzenberg  ([email protected])
        !          1695: 
        !          1696:        * regclass.c: Fix comment syntax after #endif.
        !          1697: 
        !          1698: Mon Sep 28 17:15:22 1992  Richard Stallman  ([email protected])
        !          1699: 
        !          1700:        * gstdarg.h (va_arg, va_start): Explicitly cast to __gnuc_va_alist.
        !          1701: 
        !          1702: Mon Sep 28 17:12:04 1992  Jim Wilson  ([email protected])
        !          1703: 
        !          1704:        * unroll.c (copy_loop_body, JUMP_INSN case): When invert jump
        !          1705:        insn, must first construct new insn before trying to invert it,
        !          1706:        so that validate_change will work properly.
        !          1707: 
        !          1708:        * unroll.c (find_splittable_givs): Pass mem_mode not mode to
        !          1709:        memory_address_p.
        !          1710: 
        !          1711:        * unroll.c (copy_loop_body, JUMP_INSN case): When setting
        !          1712:        JUMP_LABEL field, verify that what we think is a label actually
        !          1713:        is.  If it isn't then map the old JUMP_LABEL to find the new one.
        !          1714: 
        !          1715:        * sparc.md (orcc peephole): Don't allow FP regs to match pattern.
        !          1716: 
        !          1717:        * i960.md (indirect_jump):  Use bx instead of b*, and accept any
        !          1718:        address_operand instead of just a register operand.
        !          1719: 
        !          1720:        * i960.c (i960_round_tree): Correct conversion of bits to bytes to
        !          1721:        round up to nearest byte.
        !          1722:        (i960_round_align): Likewise.
        !          1723: 
        !          1724: Mon Sep 28 15:54:18 1992  Michael Meissner  ([email protected])
        !          1725: 
        !          1726:        * dec-osf1.h (LINK_SPEC): Fix typo.
        !          1727: 
        !          1728: Mon Sep 28 08:15:02 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          1729: 
        !          1730:        * rs6000.md (subsi3): Remove last change.
        !          1731:        (allocate_stack): Go back to calling subsi3.
        !          1732: 
        !          1733: Mon Sep 28 02:41:32 1992  Richard Stallman  ([email protected])
        !          1734: 
        !          1735:        * optabs.c (expand_binop): Use get_insns, not gen_sequence.
        !          1736: 
        !          1737:        * c-typeck.c (build_unary_op): Address of nested fcn isn't constant.
        !          1738: 
        !          1739:        * libgcc2.c (__builtin_new): Avoid passing 0 to malloc.
        !          1740: 
        !          1741:        * m68k.md (indirect_jump): Use address_operand as predicate.
        !          1742: 
        !          1743:        * c-decl.c (finish_decl): Do the pop_obstacks sooner, when it's
        !          1744:        time to start allocating in the ambient context's obstack.
        !          1745:        Don't call permanent_allocation unless got back to permanent obstack.
        !          1746: 
        !          1747: Sun Sep 27 13:06:19 1992  Richard Kenner  ([email protected])
        !          1748: 
        !          1749:        * function.c (assign_parms): If PROMOTE_FUNCTION_ARGS is defined, 
        !          1750:        see if the incoming register should be used in a wider mode.
        !          1751:        (expand_function_start): Likewise for return value if
        !          1752:        PROMOTE_FUNCTION_RETURN is defined.
        !          1753:        * calls.c (struct arg_data): New field unsignedp.
        !          1754:        (expand_call): Handle PROMOTE_FUNCTION_ARGS and
        !          1755:        PROMOTE_FUNCTION_RETURN.
        !          1756: 
        !          1757:        * alpha.h (FUNCTION_VALUE): Promote mode for return value.
        !          1758: 
        !          1759:        * alpha.h (BYTE_LOADS_SIGN_EXTEND): Define.
        !          1760: 
        !          1761:        * rs6000.md (subsi3): Don't bother calling negate_rtx for constant;
        !          1762:        we shouldn't be called with a constant.
        !          1763:        (maskir patterns): Don't mention an operand before it is used;
        !          1764:        use operand number 1 for operand with '0' constraint.
        !          1765:        (allocate_stack): Use reg_or_short_operand for predicate of
        !          1766:        allocation amount; use negate_rtx and always make a PLUS.
        !          1767: 
        !          1768:        * romp.h (EXTRA_CONSTRAINT, case 'Q'): Check for MEM instead of
        !          1769:        calling memory_operand.
        !          1770:        (SHIFT_COUNT_TRUNCATED): No longer define this.
        !          1771: 
        !          1772: Sat Sep 26 18:14:15 1992  Michael Meissner  ([email protected])
        !          1773: 
        !          1774:        * config.sub (os handling): Recognize riscos as an operating
        !          1775:        system.
        !          1776: 
        !          1777:        * configure (dec-osf1): Use x-decstatn for xmake_file.
        !          1778:        (mips computers): Handle RISC-OS 5 vs. RISC-OS 4 configuration
        !          1779:        changes -- RISC-OS 5. passes -non_shared by default.
        !          1780: 
        !          1781:        * mips-5.h (new file): RISC-OS rev 5 config file.
        !          1782:        * mips-5bsd.h (new file): RISC-OS rev 5, bsd 4.3 config file.
        !          1783:        * mips-5g4.h (new file): RISC-OS rev 5, svr4 + stabs config file.
        !          1784:        * mips-5gbsd.h (new file): RISC-OS rev 5, bsd 4.3 + stabs config file.
        !          1785:        * mips-5gdb.h (new file): RISC-OS rev 5 + stabs config file.
        !          1786:        * mips-5gsysv.h (new file): RISC-OS rev 5 svr3 + stabs config file.
        !          1787:        * mips-5svr4.h (new file): RISC-OS rev 5 svr4 + stabs config file.
        !          1788:        * mips-5sysv.h (new file): RISC-OS rev 5 svr3 config file.
        !          1789: 
        !          1790:        * dec-osf1.h (LINK_SPEC): Pass -non_shared to linker unless
        !          1791:        -shared was passed.
        !          1792:        (SIZE_TYPE): Define as long unsigned int.
        !          1793:        (PTRDIFF_TYPE): Define as int.
        !          1794:        (WCHAR_TYPE_SIZE): Define as SHORT_TYPE_SIZE.
        !          1795: 
        !          1796:        * decrose.h (MACHINE_TYPE): Shorten verbage.
        !          1797: 
        !          1798:        * i386rose.h (TARGET_VERSION): Print appropriate information.
        !          1799: 
        !          1800:        * xm-mips.h (HAVE_VFPRINTF, HAVE_PUTENV): Define on DEC OSF/1.
        !          1801: 
        !          1802:        * mips.c (siginfo): Print just current filename, and function
        !          1803:        being compiled.
        !          1804: 
        !          1805:        * mips-tfile.c (Size_t): Use long unsigned on OSF/1.
        !          1806:        (toplevel): Don't define rindex and index on OSF/1.
        !          1807: 
        !          1808: Sat Sep 26 17:46:57 1992  Torbjorn Granlund  ([email protected])
        !          1809: 
        !          1810:        * arm.md (comment before extendhisi2): Remove the lie.
        !          1811:        (zero_extendhisi2): Rewrite to work if op0 == op1.  Use
        !          1812:        gen_lowpart in preparation code.
        !          1813:        (extendqisi2, extendhisi2): Likewise.
        !          1814:        (extendqihi2): Expand.
        !          1815: 
        !          1816:        * arm.md (restorehi): Rewrite for correctness, efficiency, and
        !          1817:        clarity. Avoid generating insns involving truncate.  Generate
        !          1818:        needed pseudos in preparation statements.
        !          1819:        (storehi): Likewise.
        !          1820:        (storeinthi): Likewise.
        !          1821:        (movhi): Call gen_storehi, gen_restorehi, gen_storeinthi according
        !          1822:        their new definitions.  Use force_reg to put address in register.
        !          1823: 
        !          1824:        * m68k.md (indirect_jump): Use %a0 for output, and p for constraint.
        !          1825: 
        !          1826: Sat Sep 26 02:42:42 1992  Richard Stallman  ([email protected])
        !          1827: 
        !          1828:        * reload1.c (eliminate_regs_in_insn): Rerecognize if move insn
        !          1829:        becomes a non-move.
        !          1830: 
        !          1831:        * Makefile.in (install-fixincludes):
        !          1832:        Use - when making syslimits.h; fix if-statement syntax.
        !          1833: 
        !          1834:        * jump.c (jump_optimize): When handling dispatch table that always
        !          1835:        goes to the same place, verify previous insn exists.
        !          1836: 
        !          1837:        * c-typeck.c (common_type): Renable code to merge qualifiers
        !          1838:        given two pointers to compatible types.
        !          1839: 
        !          1840: Sat Sep 26 12:02:38 PDT 1992  Ron Guilmette  (rfg at netocm.com)
        !          1841: 
        !          1842:        * dwarfout.c (location_attribute): If DECL_RTL looks like (MEM pseudo),
        !          1843:        treat that variable as optimized away.
        !          1844: 
        !          1845: Fri Sep 25 19:48:46 1992  Richard Stallman  ([email protected])
        !          1846: 
        !          1847:        * c-decl.c (explicit_flag_signed_bitfields): New variable.
        !          1848:        (c_decode_option): Set that for -f[un]signed-bitfields.
        !          1849:        (grokdeclarator): If that's set, and -fsigned-bitfields,
        !          1850:        disregard -traditional when handling bitfield signedness.
        !          1851: 
        !          1852:        * configure: Handle --build option.  Make link hconfig.h.
        !          1853:        * Makefile.in: In the targets such as $(HOST_PREFIX_1)rtl.o,
        !          1854:        use sed to make them include hconfig.h instead of config.h.
        !          1855:        (distclean): Add command to delete hconfig.h.
        !          1856: 
        !          1857: Fri Sep 25 19:56:35 1992  Brendan Kehoe  ([email protected])
        !          1858: 
        !          1859:        * cp-search.c (compute_visibility): Don't mess with the context.
        !          1860: 
        !          1861:        * cp-decl.c (grokdeclarator): Return value from do_friend
        !          1862:        properly; this shouldn't have gone in yet.
        !          1863: 
        !          1864: Fri Sep 25 02:23:51 1992  Richard Stallman  ([email protected])
        !          1865: 
        !          1866:        * c-typeck.c (initializer_constant_valid_p): Really use endtype.
        !          1867: 
        !          1868:        * cccp.c (do_include): "Concatenate" multiple "strings" in #include.
        !          1869: 
        !          1870:        * vmsconfig.com: Renamed from configure.com.
        !          1871: 
        !          1872:        * next.h (CPP_PREDEFINES): Define __ARCHITECTURE__.
        !          1873: 
        !          1874:        * dbxout.c (dbxout_symbol): For anonymous enum, output type anyway.
        !          1875: 
        !          1876: Fri Sep 25 01:33:36 1992  Jim Wilson  ([email protected])
        !          1877: 
        !          1878:        * function.h (struct function): Add epilogue_delay_list field.
        !          1879:        * function.c (push_function_context): Save epilogue_delay_list.
        !          1880:        (pop_function_context): Restore epilogue_delay_list.
        !          1881: 
        !          1882:        * sparc.md (nonlocal_goto): Force operands[0] to be a register.
        !          1883: 
        !          1884:        * va-sparc.h (va_arg): Add 3 more (void *) casts to avoid warnings
        !          1885:        with -Wcast-align.
        !          1886: 
        !          1887:        * sparc.c (SF_MODES): Accept all single word or smaller integer
        !          1888:        modes not just SImode.  These are needed for fix/float conversions.
        !          1889: 
        !          1890:        * sched.c (sched_analyze_2, PRE_DEC case): Call sched_analyze_2 in
        !          1891:        addition to sched_analyze_1.
        !          1892: 
        !          1893:        * va-i960.h (va_start):  Must access anonymous arg as offset from
        !          1894:        start of argument block.
        !          1895: 
        !          1896:        * i960.md (movdi, movti, movdf, movtf): Make store zero to memory
        !          1897:        a separate case, only accept offsettable memory addresses, and call
        !          1898:        adj_offsettable_operand to calculate subword addresses.
        !          1899: 
        !          1900:        * i960.c (i960_output_ldconst): Pass missing xoperands argument to
        !          1901:        output_asm_insn call.
        !          1902: 
        !          1903:        * a29k.md (movti):  Split CONST_INTs into 4 moves, and force all
        !          1904:        other constants to memory.
        !          1905: 
        !          1906: Thu Sep 24 21:51:46 1992  Brendan Kehoe  ([email protected])
        !          1907: 
        !          1908:        Complete Cygnus<-->FSF merge.
        !          1909: 
        !          1910:        Thu Sep 24 17:05:27 1992  Brendan Kehoe  ([email protected])
        !          1911: 
        !          1912:        * cp-decl.c (pushdecl): Use a friendly abort rather than an assert.
        !          1913:        (grokparms): Pass whether init is set or not for the initialized
        !          1914:        parameter to grokdeclarator.
        !          1915: 
        !          1916:        Wed Sep 23 22:09:44 1992  Mike Stump  ([email protected])
        !          1917: 
        !          1918:        * cp-class.c (finish_struct), cp-decl2.c (warn_nonvdtor),
        !          1919:        cp-tree.c (layout_basetypes), cp-tree.h (warn_nonvdtor):  Re-enable
        !          1920:        warnings for non-virtual destructors in some situations.
        !          1921: 
        !          1922:        Wed Sep 23 15:42:33 1992  Mike Stump  ([email protected])
        !          1923: 
        !          1924:        Wed Sep 23 16:31:27 1992  Michael Meissner  ([email protected])
        !          1925: 
        !          1926:        * cp-decl.c (duplicate_decls): Cast bcopy arguments to char * to
        !          1927:        avoid warning on OSF/1.
        !          1928: 
        !          1929:        Wed Sep 23 11:36:44 1992  Brendan Kehoe  ([email protected])
        !          1930: 
        !          1931:        * cp-decl.c (start_method): Give the name of the class if a method's
        !          1932:        being defined again, rather than say "aggregate scope". 
        !          1933:        * cp-decl2.c (grokfield, grokbitfield, groktypefield): Ditto.
        !          1934: 
        !          1935:        Tue Sep  1 22:55:59 1992  Paul Eggert  ([email protected])
        !          1936: 
        !          1937:        * cp-cvt.c (convert_to_integer): Prefer unsigned
        !          1938:        arithmetic if the output type is unsigned and is no more precise than
        !          1939:        the computation type.  This avoids unnecessary sign extension.
        !          1940: 
        !          1941:        Tue Sep 15 20:26:18 1992  John F Carr  (jfc at Athena.MIT.EDU)
        !          1942: 
        !          1943:        * cp-pt.c (tsubst): Don't call layout_type near start of function
        !          1944:        with T.  const and volatile attributes don't affect the memory
        !          1945:        structure of the type, and T may not yet be a valid argument for
        !          1946:        layout_type (for example, if it is an uninstantiated template).
        !          1947:        Individual switch cases will call layout_type if necessary.
        !          1948: 
        !          1949:        Mon Sep 21 15:59:22 1992  Brendan Kehoe  ([email protected])
        !          1950: 
        !          1951:        * cp-decl.c (pushdecl): Check if DECL_SOURCE_LINE is non-zero, not
        !          1952:        if DECL_IGNORED_P is set, when checking for shadowing.  We no longer
        !          1953:        need DECL_IGNORED_P on builtin types.
        !          1954:        (record_builtin_type): Don't set DECL_IGNORED_P for a builtin type.
        !          1955: 
        !          1956:        * cp-decl.c (start_decl): When working with virtual functions,
        !          1957:        always use the node's DECL_CLASS_CONTEXT.
        !          1958:        * cp-method.c (hack_identifier): Ditto.
        !          1959:        * cp-search.c (compute_visibility): Ditto.
        !          1960: 
        !          1961:        * cp-decl.c (grokdeclarator): Don't allow a member to be declared
        !          1962:        extern.
        !          1963: 
        !          1964:        * cp-decl.c (grokdeclarator): Return a void_type_node if we're
        !          1965:        looking at a friend (even after calling do_friend).
        !          1966:        (pushdecl): Disable some code that's untested and
        !          1967:        doesn't necessarily help DWARF right now.
        !          1968:        (finish_function): Always emit debugging info for the
        !          1969:        return type of a function.
        !          1970:        (pushdecl): Don't change the DECL_CONTEXT of virtual
        !          1971:        methods.
        !          1972:        (finish_enum): Always output debugging info for enums.
        !          1973:        (grokdeclarator): It's an error if we're doing an init of an extern
        !          1974:        at the top level.  If we are at the top level, just warn.
        !          1975: 
        !          1976:        * cp-typeck.c (comp_target_parms): Check if strict is non-zero, not
        !          1977:        just > 0.
        !          1978:        (build_function_call_real): Don't return an error-mark node when
        !          1979:        they call "main" from within the fn, it's only a pedantic warning.
        !          1980:        (pointer_int_sum): Reword warning when using a ptr-to-mem in arith.
        !          1981: 
        !          1982:        * cp-tree.c (layout_basetypes): Make record_align and const_size
        !          1983:        unsigned.
        !          1984: 
        !          1985:        Mon Sep 21 14:53:43 1992  Brendan Kehoe  ([email protected])
        !          1986: 
        !          1987:        * cp-tree.h (flag_no_ident): Add extern decl for cp-lex.c.
        !          1988: 
        !          1989:        * cp-decl.c (duplicate_decls): Save the DECL_UID and DECL_FRIEND_P
        !          1990:        info from olddecl.  Otherwise, they'd get clobbered when newdecl's
        !          1991:        contents get copied into olddecl.
        !          1992: 
        !          1993:        * cp-lex.c (check_newline): Delete pedantic error about using #ident,
        !          1994:        since cccp.c already gives a warning.  In the case that
        !          1995:        ASM_OUTPUT_IDENT is defined, only actually spit it out if flag_no_ident
        !          1996:        is not set.
        !          1997: 
        !          1998:        Sat Sep 19 14:53:31 1992  Brendan Kehoe  ([email protected])
        !          1999: 
        !          2000:        Sat Sep 19 11:37:11 1992  John F Carr  (jfc at Athena.MIT.EDU)
        !          2001: 
        !          2002:        * cp-decl.c (finish_decl):  Don't call
        !          2003:        CLASSTYPE_DECLARED_EXCEPTION if TYPE is error_mark_node, to avoid
        !          2004:        referencing a nonexistent field.
        !          2005: 
        !          2006:        Fri Sep 18 14:06:06 1992  Brendan Kehoe  ([email protected])
        !          2007: 
        !          2008:        * cp-parse.y (component_decl): Remove sorry about not implementing
        !          2009:        methods in anonymous unions---they're illegal, and we generate an
        !          2010:        error elsewhere to that effect.
        !          2011: 
        !          2012:        * cp-decl.c (start_method): Make the error message about a
        !          2013:        duplicated member a little more informative.
        !          2014: 
        !          2015:        Fri Sep 18 12:28:13 1992  Brendan Kehoe  (brendan at rtl.cygnus.com)
        !          2016: 
        !          2017:        * cp-parse.y: Define YYDEBUG if SPEW_DEBUG is defined.
        !          2018:        (debug_yytranslate): YYDEBUG will always be defined, no need to test. 
        !          2019: 
        !          2020:        Fri Sep 18 10:46:19 1992  Brendan Kehoe  ([email protected])
        !          2021: 
        !          2022:        * cp-parse.y (unary_expr): When parsing delete, first complain if
        !          2023:        it's a non-pointer, then check if it's a pointer with the value zero.
        !          2024:        Also be sure not to call build_delete if that's the case.
        !          2025: 
        !          2026: Thu Sep 24 18:03:07 1992  Michael Meissner  ([email protected])
        !          2027: 
        !          2028:        * mips.h (MIPS_VERSION): Set Meissner version # to 27.
        !          2029:        (STRUCT_VALUE_REGNUM): Delete macro.
        !          2030:        (STRUCT_VALUE): Define as 0, so that structure return addresses
        !          2031:        are passed as the first argument.  This fixes various codegen
        !          2032:        problems with functions returning structures.
        !          2033: 
        !          2034:        * mips.c (init_cumulative_args): Don't advance arg pointer if
        !          2035:        function returns a structure.
        !          2036: 
        !          2037: Thu Sep 24 12:38:31 1992  Torbjorn Granlund  ([email protected])
        !          2038: 
        !          2039:        * pa.h (REGISTER_MOVE_COST): Fix typo.  Use `||' instead of `|'.
        !          2040:        (REG_CLASS_FROM_LETTER): Don't handle 'r' constraints here.
        !          2041:        * pa.c (clobbered_register): Delete.
        !          2042:        (srcsi_operand): Return 1 also for things matching
        !          2043:        depi_cint_operand.
        !          2044:        (secondary_reload_class): Replace.
        !          2045:        * pa.md (ldo/ldil SImode and HImode recognizers): Use
        !          2046:        "const_int_operand" for operand 1 and simplify final condition. 
        !          2047:        Remove `n' constraint.
        !          2048:        (depi SImode and HImode recognizers): Remove `n' constraint.
        !          2049:        (plus:SI ... high ... splitter): Don't overwrite input, go via
        !          2050:        clobber operand instead.
        !          2051:        (many patterns): Replace `in' constraint with just `i'.
        !          2052:        (movstrsi): Don't do (clobber (match_scratch)), use explicit
        !          2053:        pseudos instead, generated in preparation C code.  Don't call
        !          2054:        force_not_mem for operand 2.
        !          2055:        (movstrsi recognizer): Add `&' to operand 3.
        !          2056:        (andsi3): Fix typo.
        !          2057:        (iorsi3): Fix typo.
        !          2058:        (load-shift-16): New optimizer.
        !          2059:        (load-shift optimizers): Set "type" attr.
        !          2060: 
        !          2061: Thu Sep 24 15:17:38 1992  Richard Stallman  ([email protected])
        !          2062: 
        !          2063:        * toplev.c (lang_options): Add Objc options.
        !          2064: 
        !          2065:        * configure.bat: Use xgcc, not gcc.
        !          2066: 
        !          2067: Thu Sep 24 06:30:47 1992  Richard Kenner  ([email protected])
        !          2068: 
        !          2069:        * c-lex.c (yylex, case '"'): Initialize arg pased to readescape.
        !          2070: 
        !          2071:        * genattrtab.c (length_used): New variable.
        !          2072:        (walk_attr_value): Set it when we have (eq_attr "length" ...).
        !          2073:        (write_const_num_delay_slots): Value is 1 unless LENGTH_USED is set.
        !          2074: 
        !          2075:        * reorg.c (mark_set_resources, case CC0): Set RES->CC if IN_SEST.
        !          2076: 
        !          2077:        * regclass.c (forbidden_inc_dec_class, in_inc_dec): New variables.
        !          2078:        (regclass): Don't alloca the costs twice.
        !          2079:        Initialize forbidden_inc_dec_class.
        !          2080:        For regs that have inc-dec, ignore forbidden classes.
        !          2081:        (record_address_regs): Update in_inc_dec.
        !          2082: 
        !          2083: Thu Sep 24 02:36:00 1992  Richard Stallman  ([email protected])
        !          2084: 
        !          2085:        * syslimits.h: New file, includes system's limits.h.
        !          2086:        * limitx.h: Include syslimits.h instead of system's limits.h.
        !          2087:        * Makefile.in (USER_H): Add syslimits.h.
        !          2088:        (install-fixincludes): If we fix system's limits.h, install that
        !          2089:        as syslimits.h
        !          2090: 
        !          2091:        * c-lex.c (readescape): New arg ignore_ptr.
        !          2092:        (yylex): Pass new arg, handle result that comes back.
        !          2093: 
        !          2094: Wed Sep 23 19:26:42 1992  Richard Kenner  ([email protected])
        !          2095: 
        !          2096:        * reload.c (find_reloads_address): Properly check for constant address.
        !          2097: 
        !          2098:        * cse.c (simplify_unary_operation, case SIGN_EXTEND): Use
        !          2099:        HOST_BITS_PER_WIDE_INT, not HOST_BITS_PER_INT.
        !          2100: 
        !          2101:        * fold-const.c (fold_convert): Add missing cast to HOST_WIDE_INT.
        !          2102: 
        !          2103:        * jump.c (jump_optimize): Tighten up test for when we can't
        !          2104:        delete a set of CC0.
        !          2105:        Don't insert insns between set and use of CC0.
        !          2106: 
        !          2107:        * final.c (shorten_branches): Correctly access insn needing delay slot.
        !          2108: 
        !          2109:        * combine.c (significant_bits, num_sign_bit_copies): Handle SUBREGs
        !          2110:        made for promoted variables.
        !          2111: 
        !          2112:        * reorg.c (fill_simple_delay_slots): Don't make copy of insn that
        !          2113:        references CC0.
        !          2114: 
        !          2115:        * romp.md (define_attr "type"): New type "ibranch".
        !          2116:        (define_attr "length"): Set length for "ibranch" type.
        !          2117:        (define_attr "in_delay_slot"): Add new type "ibranch";
        !          2118:        for "branch", only has delay slot if length is 4.
        !          2119:        (define_attr "cc_type"): Add new type "ibranch".
        !          2120:        (indirect branches): Now type "ibranch".
        !          2121: 
        !          2122:        * alpha.c (alpha_gp_dead_after): Return 0 if not optimizing.
        !          2123: 
        !          2124: Wed Sep 23 00:11:35 1992  Richard Stallman  ([email protected])
        !          2125: 
        !          2126:        * gvarargs.h: Finish changing _ANSI_H to _ANSI_H_.
        !          2127: 
        !          2128: Tue Sep 22 23:39:06 1992  Richard Stallman  ([email protected])
        !          2129: 
        !          2130:        * i386mach.h (perform_fixdfsi): Copy arg to memory variable.
        !          2131: 
        !          2132: Tue Sep 22 14:54:38 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          2133: 
        !          2134:        * loop.c (basic_induction_var): Inside PLUS, when looking for promoted
        !          2135:        var, make sure it's a REG.
        !          2136: 
        !          2137: Tue Sep 22 12:21:11 1992  Michael Meissner  ([email protected])
        !          2138: 
        !          2139:        * mips.h (MIPS_VERSION): Bump Meissner version # to 26.
        !          2140:        (REG_PARM_STACK_SPACE): Use UNITS_PER_WORD instead of 4, and
        !          2141:        substract FIRST_PARM_OFFSET.
        !          2142:        (FIRST_PARM_CALLER_OFFSET): Delete unused macro.
        !          2143: 
        !          2144:        * mips.c (init_cumulative_args): Print types of fntype and the
        !          2145:        return type if -mdebuge.
        !          2146: 
        !          2147:        * decrose.h (CPP_SPEC): Eliminate defining various builtin
        !          2148:        functions with -D<name>=__builtin_<name>, if neither -fbuiltin nor
        !          2149:        -fno-builtin were passed.
        !          2150:        (CC1_SPEC): Eliminate passing -fno-builtin to the compiler if
        !          2151:        neither -fbuiltin nor -fno-builtin were passed.  Eliminate
        !          2152:        %{save-temps: } since gcc no longer gives an unknown switch
        !          2153:        message if it is used.
        !          2154: 
        !          2155:        * i386rose.h (CPP_SPEC): Eliminate defining various builtin
        !          2156:        functions with -D<name>=__builtin_<name>, if neither -fbuiltin nor
        !          2157:        -fno-builtin were passed.
        !          2158:        (CC1_SPEC): Eliminate passing -fno-builtin to the compiler if
        !          2159:        neither -fbuiltin nor -fno-builtin were passed.  Eliminate
        !          2160:        %{save-temps: } since gcc no longer gives an unknown switch
        !          2161:        message if it is used.
        !          2162:        (MASK_HALF_PIC): Move bit mask to 0x40000000, to allow for i386.h
        !          2163:        to define more switches without overlapping our private switch.
        !          2164:        (TARGET switches): Add -mdebugb to debug half-pic code.
        !          2165:        (OPTIMIZATION_OPTIONS): Only set flag_gnu_linker FALSE always, and
        !          2166:        flag_inline_functions if -O3.  In particular never set
        !          2167:        -fomit-frame-pointer which currently messes up debugging.
        !          2168:        (GO_IF_LEGITIMATE_ADDRESS): Define i386-osfrose version that deals
        !          2169:        with half-pic.
        !          2170:        (OVERRIDE_OPTIONS): Define to initialize half-pic.
        !          2171:        (ASM_FILE_END): Define to dump out half-pic variables if needed.
        !          2172: 
        !          2173:        * t-i386rose (EXTRA_OBJS): Define as halfpic.o.
        !          2174:        (CONFIG2_H): Add $(srcdir)/halfpic.h.
        !          2175:        (halfpic.o): Add dependencies.
        !          2176: 
        !          2177: Tue Sep 22 03:12:01 1992  Richard Stallman  ([email protected])
        !          2178: 
        !          2179:        * reload1.c (choose_reload_regs): When setting reg_has_output_reload,
        !          2180:        loop over multiple regs only for hard reg.  Set reg_is_output_reload
        !          2181:        in separate loop.
        !          2182: 
        !          2183: Mon Sep 21 12:22:24 1992  Jeffrey A. Law  ([email protected])
        !          2184: 
        !          2185:        * reorg.c (mark_set_resources, case REG): A register is set iff
        !          2186:        "in_dest" is nonzero.
        !          2187: 
        !          2188: Mon Sep 21 14:16:10 1992  Torbjorn Granlund  ([email protected])
        !          2189: 
        !          2190:        * combine.c (make_extraction): Make test whether to use AND or
        !          2191:        {SIGN,ZERO}_EXTRACT depend on UNSIGNEDP.
        !          2192: 
        !          2193: Mon Sep 21 08:26:55 1992  Richard Kenner  ([email protected])
        !          2194: 
        !          2195:        * reload1.c (reload): If we can't get a register that we know won't
        !          2196:        interfere with groups, get one that might instead of giving up.
        !          2197: 
        !          2198:        * reload1.c (reload): Print the needs to the dump file.
        !          2199: 
        !          2200: Mon Sep 21 02:45:19 1992  Richard Stallman  ([email protected])
        !          2201: 
        !          2202:        * function.c (put_var_into_stack): Check REG != 0 before dereference.
        !          2203: 
        !          2204: Sun Sep 20 16:58:05 1992  Fred Fish  (fnf at fishpond.cygnus.com)
        !          2205: 
        !          2206:        * x-svr4:  New generic SVR4 host makefile fragment.
        !          2207:        * x-i386v4:  File deleted.
        !          2208:        * x-ncr3000:  Get alloca using ALLOCA, not libucb.a.
        !          2209:        * configure (i386-*-sysv4*):  Use x-svr4, not x-i386v4.
        !          2210:        * configure (i486-*-sysv4*):  Use x-svr4.
        !          2211: 
        !          2212: Sun Sep 20 21:18:15 1992  Richard Stallman  ([email protected])
        !          2213: 
        !          2214:        * combine.c (subst): Set and compare extend_op with 0, not NULL.
        !          2215: 
        !          2216:        * cse.c (find_comparison_args): New args PMODE1, PMODE2.
        !          2217:        (fold_rtx, record_jump_equiv): Use them to get modes of comparison.
        !          2218:        (fold_rtx): Associate MINUS with nested PLUS.
        !          2219: 
        !          2220:        * seq386.h (LPREFIX): Overridden as `.L'.
        !          2221:        (ASM_GENERATE_INTERNAL_LABEL, ASM_OUTPUT_INTERNAL_LABEL): Likewise.
        !          2222: 
        !          2223: Sun Sep 20 05:53:20 1992  Richard Kenner  ([email protected])
        !          2224: 
        !          2225:        * combine.c (try_combine): Always call set_significant on new
        !          2226:        patterns, so don't call just in split case.
        !          2227: 
        !          2228:        * combine.c (subst): Move sign extension inside arithmetic
        !          2229:        when we have a constant computation inside another computation.
        !          2230: 
        !          2231:        * emit-rtl.c (emit_insn_after_with_line_notes): New function.
        !          2232:        * jump.c (jump_optimize): Delete insns that set registers that
        !          2233:        are not used elsewhere.
        !          2234:        Fix some bugs in "if (...) x = a; else x = b;" code.
        !          2235:        Remove uses of reorder_insns.
        !          2236:        Add code to make scc insns for "if (...) x = exp;" if EXP is simple
        !          2237:        enough.
        !          2238:        Optimize "if (...) x = b;" if jumps very expensive; don't use a REG
        !          2239:        as the older value of X since it doesn't help and can hurt.
        !          2240:        Correctly place generated insns in above case.
        !          2241: 
        !          2242:        * reload.c (find_reloads, find_reloads_toplev): Treat
        !          2243:        BYTE_LOADS_SIGN_EXTEND just like BYTE_LOADS_ZERO_EXTEND.
        !          2244:        * combine.c (subst, simplify_and_const_int, significant_bits):
        !          2245:        Likewise.
        !          2246:        (num_sign_bit_copies, case MEM): New case for BYTE_LOADS_SIGN_EXTEND.
        !          2247:        (num_sign_bit_copies, case SUBREG): Handle just like significant_bits.
        !          2248: 
        !          2249: Sat Sep 19 15:55:31 1992  Richard Kenner  ([email protected])
        !          2250: 
        !          2251:        * combine.c (combine_instructions): Clear significant_valid 
        !          2252:        at end of combine pass for a function.
        !          2253:        (find_split_point, case MEM): See if first operand of the PLUS
        !          2254:        that makes up an address is complex.
        !          2255:        (subst): Add missing arg to recursive calls when IF_THEN_ELSE
        !          2256:        is an arg of an operator.
        !          2257:        (subst, case IF_THEN_ELSE): Generalize code to propagate comparison
        !          2258:        result into arms by using known_cond.
        !          2259:        If an arm is the first operand of the comparison, make it the
        !          2260:        true arm.
        !          2261:        Remove unneeded comparison when arms are identical.
        !          2262:        Try to convert IF_THEN_ELSE to ABS, (neg (abs X)), [US]MIN, [US]MAX.
        !          2263:        Convert (if_then_else (ne A 0) (OP X C) X) to (OP X (mult A C)).
        !          2264:        (subst, case SET): If we don't have conditional moves,
        !          2265:        convert IF_THEN_ELSE into logical operations.
        !          2266:        (subst, case AND): Always make conditional moves, even if we
        !          2267:        don't support them on the machine.
        !          2268:        (known_cond, extended_count): New functions.
        !          2269:        (gen_binary): For commutative operations, put constant last.
        !          2270: 
        !          2271:        * combine.c (try_combine): The insns made by a DEFINE_SPLIT might
        !          2272:        contain a PARALLEL and the call to recog_for_combine might add it.
        !          2273: 
        !          2274:        * combine.c (simplify_comparison, case ASHIFT): Fix typo.
        !          2275: 
        !          2276:        * combine.c (try_combine): When removing REG_UNUSED note,
        !          2277:        update reg_n_deaths.
        !          2278:        Likewise, when making new REG_DEAD notes for distribute_notes.
        !          2279:        (remove_death, move_deaths): Update reg_n_deaths.
        !          2280:        (distribute_notes): When placing second REG_DEAD or REG_UNUSED note or
        !          2281:        ignoring such a note, update reg_n_deaths.
        !          2282: 
        !          2283:        * rtl.h (SUBREG_PROMOTED_{VAR,UNSIGNED}_P): New macros.
        !          2284:        * tree.h (DECL_MODE, DECL_RTL): Update comments.
        !          2285:        * expr.h (PROMOTE_MODE): Provide default definition.
        !          2286:        * expr.c (convert_move, convert_to_mode): Strip off a SUBREG made
        !          2287:        for variables with promoted modes.
        !          2288:        (store_expr): Store into variables with promoted modes by
        !          2289:        doing the appropriate extension operation.
        !          2290:        (expand_expr, case VAR_DECL): Generate SUBREGs for promoted objects.
        !          2291:        (expand_expr, case SAVE_EXPR): Likewise for SAVE_EXPRs.
        !          2292:        (expand_increment): Handle increment of promoted objects.
        !          2293:        * function.c (fixup_var_refs{,_insns}): Add new parms for promoted
        !          2294:        mode and signedness; all callers changed.
        !          2295:        Insert mode conversions when required.
        !          2296:        (fixup_var_refs_1): Add new parms for mode and signedness;
        !          2297:        handle SUBREGs for promoted values.
        !          2298:        (assign_parms): Promote the mode of parameters when useful for
        !          2299:        the target machine.
        !          2300:        * function.h (struct var_refs_queue): Remove unused field ORIGINAL.
        !          2301:        Add new fields PROMOTED_MODE and UNSIGNEDP.
        !          2302:        * integrate.c (expand_inline_function): Convert actual to formal's
        !          2303:        mode (in case formal was promoted).
        !          2304:        * loop.c (basic_induction_var): Add new parameter P.
        !          2305:        Check for bivs that are set over multiple insns and also
        !          2306:        allow a SIGN_EXTEND to be used; remove check for MINUS since
        !          2307:        we don't make MINUS with a constant 2nd operand any more.
        !          2308:        * optabs.c (expand_binop, expand_unop): Don't make SUBREG for promoted
        !          2309:        variables as operands.
        !          2310:        * stmt.c (tail_recursion_args): Use mode of DECL_RTL, not
        !          2311:        DECL_MODE.
        !          2312:        (expand_decl): Promote modes of scalar variables when useful on
        !          2313:        target.
        !          2314:        * unroll.c (find_splittable_regs): If any BIV update isn't
        !          2315:        simple, don't split it.
        !          2316:        (final_giv_value): Look for biv updates by matching insns; don't
        !          2317:        try to reparse the insn.
        !          2318:        * rs6000.h (PROMOTE_MODE): New macro.
        !          2319: 
        !          2320:        * rtlanal.c (reg_set_last): Allow old value to be a SUBREG.
        !          2321: 
        !          2322:        * rs6000.c (print_operand, case 'h', 'H', 'w'): Minor cleanups.
        !          2323:        * rs6000.h (BRANCH_COST): Increase from 2 to 3.
        !          2324:        * rs6000.md (smax, smin, umax, umin): Add define_splits.
        !          2325: 
        !          2326:        * alpha.h (PROMOTE_MODE): New macro.
        !          2327:        (REG_ALLOC_ORDER): Put $0 in front of $21-$16.
        !          2328:        (CONST_OK_FOR_LETTER): Change meanings of N, O, and P.
        !          2329:        (BRANCH_COST): Increase from 3 to 4.
        !          2330:        (PREDICATE_CODES): Add new predicates reg_or_cint_operand and
        !          2331:        sext_add_operand.
        !          2332:        * alpha.md (addsi3): subl can be used to sign-extend addition of
        !          2333:        small negative constants.
        !          2334:        (negsi2): Add pattern for (sign_extend (neg ..)).
        !          2335:        (and pattern): Fix typo in constraint.
        !          2336:        (ashldi3): Use new definition of constant letters.
        !          2337:        (smax, smin, umax, umin): Add define_splits.
        !          2338:        (compares): Can compare constant with zero by adding negative of
        !          2339:        constant.
        !          2340:        (store insns): Can store 0 into memory in both integer and FP.
        !          2341:        * alpha.c (sext_add_operand, reg_or_cint_operand): New function.s
        !          2342:        (print_operand, case 'r', case 'R'): Clean up code; use CONST0_RTX.
        !          2343: 
        !          2344:        * rtl.c (note_insn_name): Fix typo: had NOT_INSN_DELETED_LABEL.
        !          2345: 
        !          2346:        * jump.c (delete_insn): Don't change labels to NOTEs if we would
        !          2347:        not really have deleted them.
        !          2348: 
        !          2349:        * genconfig.c (walk_insn_part, case IF_THEN_ELSE): Refine when
        !          2350:        HAVE_CMOVE_FLAG gets set.
        !          2351: 
        !          2352: Sat Sep 19 14:52:05 1992  Richard Stallman  ([email protected])
        !          2353: 
        !          2354:        * reload.c (find_reloads): Always use >= with FIRST_PSEUDO_REGISTER.
        !          2355: 
        !          2356:        * i386mach.h (SIZE_TYPE): Defined.
        !          2357: 
        !          2358: Sat Sep 19 04:57:06 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          2359: 
        !          2360:        * i386.md (sCOND patterns): Don't allow a MEM in the SET_DEST,
        !          2361:        because these insns can't have input reloads, and a MEM might need
        !          2362:        an input address reload.
        !          2363: 
        !          2364:        * fold-const.c (fold_convert): Avoid using conversion of unsigned
        !          2365:        to floating; offset value by hand to fit in signed type.
        !          2366: 
        !          2367: Sat Sep 19 00:50:32 1992  Richard Stallman  ([email protected])
        !          2368: 
        !          2369:        * integrate.c (subst_constants): Do substitute in address of MEM dest.
        !          2370: 
        !          2371:        * reload1.c (init_reload): Fix typo.
        !          2372: 
        !          2373: Fri Sep 18 21:09:15 1992  Richard Stallman  ([email protected])
        !          2374: 
        !          2375:        * libgcc2.c: Declare _exit as volatile.
        !          2376: 
        !          2377:        * function.c (assign_parms): Set MEM_IN_STRUCT_P right in stack slots.
        !          2378: 
        !          2379: Fri Sep 18 15:58:15 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          2380: 
        !          2381:        * fixincludes: Don't look for *.h symlinks if the host doesn't
        !          2382:        have symlinks.
        !          2383: 
        !          2384: Fri Sep 18 17:34:27 1992  Michael Meissner  ([email protected])
        !          2385: 
        !          2386:        * mips.md (call_internal): If the memory address to call is really
        !          2387:        a constant integer, load it up into $at and do the call from
        !          2388:        there.
        !          2389:        (call_value_internal): Ditto.
        !          2390: 
        !          2391: Fri Sep 18 03:48:17 1992  Tom Wood  ([email protected])
        !          2392: 
        !          2393:        * m88k.c (m88k_volatile_code): New variable.
        !          2394:        (print_operand): Track volatile memory references and output a
        !          2395:        serializing instruction before a load when necessary.
        !          2396:        * m88k.h (TARGET_SWITCHES): Add -m{no,}serialize-volatile.
        !          2397:        (OVERRIDE_OPTIONS): -m88110 and -m88000 imply -mserilize-volatile.
        !          2398:        (ADJUST_INSN_LENGTH): Volatile memory operantions may be longer.
        !          2399:        (CC_STATUS_INIT): Reset m88k_volatile_code to the unknown state.
        !          2400:        * m88k.md (load store patterns): Prepend loads and stores with %V
        !          2401:        and %v to track the type and address of the access.
        !          2402: 
        !          2403:        * m88k.c (m88k_version, m88k_version_0300): New variables.
        !          2404:        * m88k.h (TARGET_OPTIONS): Generalize to -mversion-STRING.
        !          2405:        (OVERRIDE_OPTIONS): Compute m88k_version_0300.
        !          2406:        * m88k.md (call_movstrsi_loop): Renamed from call_block_move_loop.
        !          2407:        Use call-value for the block move patterns.
        !          2408: 
        !          2409:        * m88kdgux.h (PERFERRED_DEBUGGING_TYPE): Compute based on
        !          2410:        m88k_version.
        !          2411:        (CPU_DEFAULT): Make it -m88000.
        !          2412: 
        !          2413:        * m88k.h: Don't use #elif
        !          2414: 
        !          2415: Fri Sep 18 01:08:55 1992  Richard Stallman  ([email protected])
        !          2416: 
        !          2417:        * Makefile.in (install-common-headers): Don't copy byteorder.h.
        !          2418: 
        !          2419: Thu Sep 17 20:06:22 1992  Brendan Kehoe  ([email protected])
        !          2420: 
        !          2421:        Complete 13th Cygnus<-->FSF merge.
        !          2422: 
        !          2423:        Thu Sep 17 13:15:15 1992  Brendan Kehoe  ([email protected])
        !          2424: 
        !          2425:        Do some much-needed housecleaning of the C++ front-end.
        !          2426:        * cp-call.c (ideal_candidate): Move `p2' down inside #if 0'd (only)
        !          2427:        section that actually uses it.  Delete unused variable `buf'.
        !          2428:        (build_method_call): Delete unused variable `dtor_specd'.
        !          2429:        * cp-class.c (finish_struct): Delete unused variable `basetype'.
        !          2430:        * cp-cvt.c (convert_to_aggr): Add missing argument decl for `protect'.
        !          2431:        (convert_pointer_to): Delete unused variable `form'.
        !          2432:        * cp-decl.c: Include string.h/strings.h for strncpy() decl.
        !          2433:        Add decls for init_* fns.  Delete unused decl `push_overload_decl_1'.
        !          2434:        Don't use `c_function_varargs', C++ doesn't need it.
        !          2435:        (push_binding_level): Add missing argument decls for
        !          2436:        `tag_transparent' and `keep'.
        !          2437:        (lookup_tag): Add missing argument decl for `tags_transparent'.
        !          2438:        (lookup_name): Add missing argument decl for `prefer_type'.
        !          2439:        (start_decl): Delete unused variables `classname' and `tmpl'.
        !          2440:        (grokvardecl): Add missing argument decl for `initialized'.
        !          2441:        (grokdeclarator): Delete unused variable `t'.
        !          2442:        * cp-decl2.c (get_temp_name): Delete unused variable `temp'.
        !          2443:        (finish_table): Delete unused variable `publicp'.
        !          2444:        (finish_builtin_type): Add missing argument decl for `len'.
        !          2445:        (finish_file): Delete unused variables `asm_out_file' and
        !          2446:        `init_function_name'.
        !          2447:        * cp-except.c (ansi_exception_object_lookup): Add missing
        !          2448:        argument decl for `type'.
        !          2449:        (cplus_expand_throw): Delete unused variables `cname', `name',
        !          2450:        and `raise_id'.
        !          2451:        * cp-init.c: Delete unneeded forward decl of `init_init_processing'.
        !          2452:        (build_new): Delete unused variable `alignment'.
        !          2453:        (expand_vec_init): Add missing argument decl for `from_array'.
        !          2454:        (build_vec_delete): Delete unused variable `rval'.
        !          2455:        * cp-input.c (feed_input): Add missing argument decl for `len'.
        !          2456:        * cp-lex.c: Delete unused variable `nextlastiddecl'.
        !          2457:        (check_newline): Delete unused variable `tmp'.  Place `asm_out_file'
        !          2458:        inside a conditional for ASM_OUTPUT_IDENT.
        !          2459:        (real_yylex): Delete unused variable `typename_scope_in_progress'
        !          2460:        and unused labels `relex' and `reswitch'.
        !          2461:        * cp-method.c: Include string.h/strings.h for strncpy() decl.
        !          2462:        (new_text_len): Deleted.
        !          2463:        (dump_type_prefix): Delete unused variables `print_struct' and `name'.
        !          2464:        (dump_tyupe): Delete unused variable `print_struct'.
        !          2465:        (type_as_string): Delete unused variable `spaces'.
        !          2466:        (do_inline_function_hair): Delete unused variable `cname'.
        !          2467:        (flush_repeats): Delete unused variable `rval'.
        !          2468:        (build_t_desc_overload): Delete unused variable `i'.
        !          2469:        (build_opfncall): Add missing argument decl for `flags'.
        !          2470:        (hack_identifier): Add missing argument decl for `yychar'.
        !          2471:        * cp-parse.y (template_instantiate_once): Delete unused
        !          2472:        variables `id' and `members'.
        !          2473:        * cp-search.c (lookup_field): Add missing argument decl for `want_type'.
        !          2474:        (tree_needs_constructor_p): Add missing argument decl for `i'.
        !          2475:        (dfs_debug_mark): Delete unused variable `pending_vtables'.
        !          2476:        (dfs_get_vbase_types): Delete unused variable `basetype'.
        !          2477:        * cp-spew.c (init_spew): Delete unused variables `pc' and
        !          2478:        `chars_following_typename'.
        !          2479:        (yylex): Delete unused variables `dk' and `tmp'.  Move decl of `t2' down
        !          2480:        to the block that actually uses it.
        !          2481:        * cp-tree.c (build_cplus_staticfn_type): Delete unused variable `ptype'.
        !          2482:        (propagate_binfo_offsets): Delete unused variables `t' and `basetype'.
        !          2483:        (layout_basetypes): Delete unused variable `binfo'.
        !          2484:        (array_type_nelts_total): Delete unused variable `index_type'.
        !          2485:        * cp-tree.h: Add many decls.
        !          2486:        * cp-typeck.c (comp_array_types): Add missing argument decl
        !          2487:        for `strict'.
        !          2488:        (build_compound_expr): Delete unused variable `tmp'.
        !          2489:        (convert_for_initialization): Delete unused label `converted'.
        !          2490:  
        !          2491:        Wed Sep 16 12:51:10 1992  Brendan Kehoe  ([email protected])
        !          2492: 
        !          2493:        * cp-decl.c (init_decl_processing): Enable code to add sin and cos
        !          2494:        as built-in functions.
        !          2495: 
        !          2496:        * cp-decl.c (duplicate_decls): Enable code to preserve the DECL_UID
        !          2497:        of olddecl.
        !          2498: 
        !          2499:        * cp-search.c (lookup_nested_fields): Make sure we're climbing along
        !          2500:        a chain of nested types, and nothing else.
        !          2501: 
        !          2502:        Tue Sep 15 17:38:34 1992  Brendan Kehoe  ([email protected])
        !          2503: 
        !          2504:        * cp-search.c (lookup_nested_fields): New function.
        !          2505:        * cp-tree.h: Declare it.
        !          2506:        * cp-decl.c (lookup_name): Call it if there's no class-local
        !          2507:        definition.  (It could be nested.)
        !          2508:        * cp-lex.c (do_identifier): Call lookup_nested_field() if necessary.
        !          2509: 
        !          2510:        Tue Sep 15 12:37:16 1992  Brendan Kehoe  ([email protected])
        !          2511: 
        !          2512:        Mon Aug 24 14:58:02 1992  Chip Salzenberg  (chip at animal)
        !          2513: 
        !          2514:        * cp-typeck.c (build_conditional_expr): Determine constness
        !          2515:        and volatility with TREE_... tests instead of TYPE_... tests.
        !          2516: 
        !          2517:        Mon Sep 14 18:00:35 1992  Chip Salzenberg  ([email protected])
        !          2518: 
        !          2519:        * cp-decl.c (grokdeclarator): Remove redundant (and broken)
        !          2520:        test for multiple destructors in a class.
        !          2521: 
        !          2522:        Fri Jul 31 19:09:10 1992  Chip Salzenberg  ([email protected])
        !          2523: 
        !          2524:        * cp-cvt.c (convert_to_integer): Push truncation inside COND_EXPR.
        !          2525: 
        !          2526:        Mon Sep 14 17:52:45 1992  Chip Salzenberg  ([email protected])
        !          2527: 
        !          2528:        * cp-class.c (finish_struct): Always write all structure types,
        !          2529:        even if they're defined in a "#pragma interface" header file.
        !          2530:        Otherwise, XCOFF debugging info is messed up.
        !          2531: 
        !          2532:        Mon Sep 14 17:39:32 1992  Chip Salzenberg  ([email protected])
        !          2533: 
        !          2534:        * cp-class.c (finish_struct):  ``Actually, I don't understand
        !          2535:        this code.  What is it supposed to do?''  --Niklas Hallqvist
        !          2536: 
        !          2537:        Mon Sep 14 17:27:23 1992  Chip Salzenberg  ([email protected])
        !          2538: 
        !          2539:        * cp-decl.c (finish_decl):  Don't dump core if a decl is anonymous.
        !          2540:        A decl is at the global binding level if DECL_CONTEXT is null.
        !          2541:        (grokdeclarator):  Don't globalize a type if its first mention
        !          2542:        is in a parameter.  It's okay to initialize a function in a
        !          2543:        non-global scope.
        !          2544: 
        !          2545:        Tue Sep 15 12:15:26 1992  Brendan Kehoe  ([email protected])
        !          2546: 
        !          2547:        * cp-typeck.c (c_expand_return): Emit a warning when they try to
        !          2548:        return the address of a local variable.
        !          2549: 
        !          2550:        * cp-decl.c (finish_method): Make sure it's indeed nested before
        !          2551:        checking for the qualified name.
        !          2552: 
        !          2553:        Mon Sep 14 18:59:25 1992  Mike Stump  ([email protected])
        !          2554: 
        !          2555:        Wed Sep  2 11:04:24 1992  Chip Salzenberg  ([email protected])
        !          2556: 
        !          2557:        * cp-decl.c (init_decl_processing): Add sin and cos as built-in
        !          2558:        functions.  Fix type of __builtin_constant_p.
        !          2559: 
        !          2560:        * cp-lex.c (readescape): For \x, don't include leading 0's in count.
        !          2561: 
        !          2562:        * cp-typeck.c (build_unary_op): For ADDR_EXPR, just set
        !          2563:        TREE_CONSTANT if staticp, but don't clear TREE_CONSTANT.
        !          2564: 
        !          2565:        Mon Sep 14 18:54:41 1992  Mike Stump  ([email protected])
        !          2566: 
        !          2567:        * cp-parse.y (permanent_obstack):  Move to top of file.
        !          2568: 
        !          2569:        Mon Sep 14 18:50:19 1992  Mike Stump  ([email protected])
        !          2570: 
        !          2571:        Mon Sep 14 16:39:10 1992  Chip Salzenberg  ([email protected])
        !          2572: 
        !          2573:        [ Changes propagated from diffs to c-* in 920911 snapshot. ]
        !          2574: 
        !          2575:        * cp-decl.c (duplicate_decls): Set DECL_INLINE in newdecl so it
        !          2576:        is copied into olddecl.  Don't set DECL_EXTERNAL in olddecl.
        !          2577:        Preserve DECL_UID and DECL_FRIEND_P of olddecl.
        !          2578: 
        !          2579:        * cp-typeck.c (build_binary_op_nodefault): Don't assume that a
        !          2580:        target integer fits in a HOST_WIDE_INT when checking shift widths.
        !          2581: 
        !          2582:        Mon Sep 14 18:15:42 1992  Mike Stump  ([email protected])
        !          2583: 
        !          2584:        Mon Aug 24 14:32:03 1992  Chip Salzenberg  ([email protected])
        !          2585: 
        !          2586:        * cp-parse.y (reserved_declspecs): Warn if storage class occurs here.
        !          2587:        (declmods): Warn if storage class is not first.
        !          2588: 
        !          2589:        Mon Sep 14 16:59:53 1992  Brendan Kehoe  ([email protected])
        !          2590: 
        !          2591:        * cp-method.c (fndecl_as_string): Don't output an extra space when
        !          2592:        printing the return type of a function.
        !          2593: 
        !          2594:        Mon Sep 14 16:01:53 1992  Mike Stump  ([email protected])
        !          2595: 
        !          2596:        Fri Jun 12 18:07:00 1992  Niklas Hallqvist  ([email protected])
        !          2597: 
        !          2598:        * cp-parse.y (structsp, named_class_head_sans_basetype):  Call
        !          2599:        overload_template_name in the case of template specializations so
        !          2600:        that something like:
        !          2601: 
        !          2602:        template<class T> struct C { C(); };
        !          2603:        struct C<int> { C(); };
        !          2604: 
        !          2605:        works.
        !          2606: 
        !          2607:        Mon Sep 14 15:51:22 1992  Mike Stump  ([email protected])
        !          2608: 
        !          2609:        Fri Apr 10 13:20:56 1992  Niklas Hallqvist  ([email protected])
        !          2610: 
        !          2611:        * cp-spew.c (spew_debug): exported this flag for use in cp-decl.c
        !          2612:        (template_type_seen_before_scope): new global containing contextual
        !          2613:        information for the parser, making the compiler grok nested types in
        !          2614:        template classes.
        !          2615:        (shift_tokens): Guard bcopy calls against moves of zero size.
        !          2616:        (yylex): Handle nested types in template classes.
        !          2617: 
        !          2618:        * cp-parse.y (scoped_typename): Handle nested types in template
        !          2619:        classes.
        !          2620:        (template_type): Likewise.
        !          2621:        (base_class.1): Likewise.
        !          2622:        (member_init): Likewise.
        !          2623:        (scoped_baseclass): New rule for handling of nested types in
        !          2624:        template classes.
        !          2625: 
        !          2626:        * cp-decl.c (xref_defn_tag): Conditionalized debug printout on
        !          2627:        spew_debug (defined in cp-spew.c).
        !          2628:        (binding_levels_sane): void function returned value.
        !          2629: 
        !          2630:        Mon Sep 14 15:41:28 1992  Mike Stump  ([email protected])
        !          2631: 
        !          2632:        Mon Sep 14 17:26:18 1992  Chip Salzenberg  ([email protected])
        !          2633: 
        !          2634:        * cp-parse.y (unary_expr), cp-call.c (build_scoped_method_call):
        !          2635:        NEVER use `maybe_adjust' feature in destructors.  It's unsafe.
        !          2636: 
        !          2637:        Mon Sep 14 15:12:34 1992  Brendan Kehoe  ([email protected])
        !          2638: 
        !          2639:        * cp-decl.c (finish_method): Complain when a qualifier is used as
        !          2640:        part of a member declaration.
        !          2641: 
        !          2642:        Mon Sep 14 11:47:30 1992  Mike Stump  ([email protected])
        !          2643: 
        !          2644:        * cp-decl2.c (groktypefield):  Revert Wed Aug 19 14:47:08 1992
        !          2645:        change as it breaks template constructor declarations.  Gez, this
        !          2646:        code is horribly complex, and the comments are wrong.  Note,
        !          2647:        template constructor definitions are broken in the same way, as
        !          2648:        declarations were with this patch in.
        !          2649: 
        !          2650:        Fri Sep 11 14:09:01 1992  Mike Stump  ([email protected])
        !          2651: 
        !          2652:        Fri Sep 11 10:34:45 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          2653: 
        !          2654:        * cp-decl.c (duplicate_decls):  For file-scope redefinitions, note
        !          2655:        that the variable was previously *defined* at some specific (earlier)
        !          2656:        point.
        !          2657: 
        !          2658:        Fri Sep 11 13:49:55 1992  Mike Stump  ([email protected])
        !          2659: 
        !          2660:        Tue Sep  8 21:39:35 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          2661: 
        !          2662:        * cp-decl2.c (finish_file):  Don't pass `1's as the `functionbody'
        !          2663:        flag to `poplevel' when getting ready to finishing up the per-
        !          2664:        compilation-unit constructors and destructors.
        !          2665: 
        !          2666:        Fri Sep 11 13:28:02 1992  Mike Stump  ([email protected])
        !          2667: 
        !          2668:        * cp-decl.c (grokdeclarator):  Upgrade local externs with
        !          2669:        initializations to be errors, instead of warnings.
        !          2670: 
        !          2671:        Fri Sep 11 13:03:52 1992  Mike Stump  ([email protected])
        !          2672: 
        !          2673:        Thu Sep 10 09:40:56 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          2674: 
        !          2675:        * cp-decl.c (grokdeclarator):  Given an error if *either* a `static'
        !          2676:        or an `extern' specifier is attached to a defining declaration of a
        !          2677:        static data member.
        !          2678: 
        !          2679:        Wed Sep  9 19:46:43 1992  Mike Stump  ([email protected])
        !          2680: 
        !          2681:        * c++: Makes sure echo -nostdinc does not eat the -nostdinc.
        !          2682: 
        !          2683:        Tue Sep  8 13:42:35 1992  Brendan Kehoe  ([email protected])
        !          2684: 
        !          2685:        * cp-typeck.c (common_type, case FUNCTION_TYPE): An empty argument
        !          2686:        list is represented as a void_type_node; make sure we check for
        !          2687:        that, and not just an empty TYPE_ARG_TYPES list on either side.
        !          2688: 
        !          2689:        Tue Sep  8 02:31:05 1992  Mike Stump  ([email protected])
        !          2690: 
        !          2691:        * cp-tree.c (layout_basetypes, make_binfo):  Added support for
        !          2692:        debugging information about virtual base class pointers.
        !          2693: 
        !          2694:        Mon Sep  7 15:34:58 1992  Brendan Kehoe  ([email protected])
        !          2695: 
        !          2696:        * cp-decl2.c (temp_name_p): Deleted function, never used anywhere.
        !          2697: 
        !          2698:        Sun Sep  6 23:09:29 1992  John F Carr  (jfc at Athena.MIT.EDU)
        !          2699: 
        !          2700:        * cp-typeck.c (convert_arguments): Ignore arguments which are
        !          2701:        ERROR_MARK_NODE to avoid crashes trying to reference fields which
        !          2702:        are not present.
        !          2703: 
        !          2704:        Mon Sep  7 12:34:09 1992  Brendan Kehoe  ([email protected])
        !          2705: 
        !          2706:        * cp-decl.c (clear_anon_tags): Do assignment of B after we've seen
        !          2707:        if we're to work on an anonymous aggregate.  No need to make the
        !          2708:        assignment for nearly every aggr we ever declare. 
        !          2709: 
        !          2710:        Sun Sep  6 17:51:47 1992  Mike Stump  ([email protected])
        !          2711: 
        !          2712:        Sun Sep  6 13:12:16 1992  John Carr ([email protected])
        !          2713: 
        !          2714:        * cp-decl.c (pushdecl, finish_decl, store_return_init,
        !          2715:        finish_function), cp-decl2.c (constructor_name, finish_file),
        !          2716:        cp-except.c (cplus_expand_reraise), cp-init.c (emit_base_init,
        !          2717:        expand_aggr_init_1), cp-typeck.c (build_modify_expr,
        !          2718:        c_expand_asm_operands, c_expand_return): Include rtl.h and eliminate
        !          2719:        unneeded casts.
        !          2720: 
        !          2721:        * cp-decl2.c (grokbitfield): Use NULL_TREE instead of NULL.
        !          2722: 
        !          2723:        * cp-decl2.c (finish_file): Don't try and not use stdio.h.
        !          2724: 
        !          2725:        * cp-except.c (cplus_expand_reraise): emit_move_insn takes 2
        !          2726:        arguments, not three.
        !          2727: 
        !          2728:        Sat Sep  5 12:04:06 1992  Brendan Kehoe  ([email protected])
        !          2729: 
        !          2730:        * cp-decl.c (finish_function): Undo change of Mon Aug 17 16:28:48
        !          2731:        1992; it resulted in lots of unnecessary and incorrect warnings.
        !          2732: 
        !          2733:        * cp-lex.c (do_identifier): For nested classes, check if a variable
        !          2734:        being sought is actually in the scope of an enclosing class.  If it
        !          2735:        is, and the variable's non-static, bail.
        !          2736: 
        !          2737:        * cp-decl.c (grok_enum_decls):  Tighten up some code that was pretty
        !          2738:        twisty.
        !          2739: 
        !          2740:        * cp-class.c (start_struct): Delete; it was #if 0'd out anyway (C++
        !          2741:        doesn't need it), and is an old hold-over from c-decl.c.
        !          2742: 
        !          2743:        * cp-class.c (minus_one_node): Delete, it's not used.
        !          2744:        (init_class_processing): Delete init of minus_one_node.
        !          2745: 
        !          2746:        * cp-spew.c (yylex): Check return of resolve_scope_to_name to
        !          2747:        be NULL_TREE.
        !          2748:        (frob_identifier): Likewise.
        !          2749:        (hack_more_ids): Likewise.
        !          2750: 
        !          2751:        * cp-cvt.c (convert_to_real): Use REAL_VALUE_ATOF to make 0.
        !          2752: 
        !          2753:        Fri Sep  4 19:23:17 1992  Mike Stump  ([email protected])
        !          2754: 
        !          2755:        * cp-decl.c (grok_ctor_properties):  When looking for copy
        !          2756:        constructors, ignore the first argument since it is the in$chrg
        !          2757:        parameter for the object to copy from.
        !          2758: 
        !          2759:        Fri Sep  4 14:35:31 1992  Mike Stump  ([email protected])
        !          2760: 
        !          2761:        * cp-cvt.c (build_up_reference):  Prevent the compiler from dumping
        !          2762:        core on semantic errors.
        !          2763: 
        !          2764: Thu Sep 17 17:28:13 1992  Richard Stallman  ([email protected])
        !          2765: 
        !          2766:        * c-typeck.c (initializer_constant_valid_p): Warn about address
        !          2767:        arithmetic destined for a type that's too narrow.
        !          2768:        New argument ENDTYPE.
        !          2769: 
        !          2770:        * limitx.h: Don't include-next if _LIBC_LIMITS_H_ defined.
        !          2771: 
        !          2772: Thu Sep 17 20:45:16 1992  Paul Eggert  ([email protected])
        !          2773: 
        !          2774:        * cexp.y (parse_escape): Diagnose '\x' with no digits.
        !          2775:        Diagnose integer overflow when parsing \x escapes.
        !          2776: 
        !          2777: Thu Sep 17 11:52:53 1992  Michael Meissner  ([email protected])
        !          2778: 
        !          2779:        * gcc.c (SIGNED_CHAR_SPEC): Use #if rather than ?: in default defn.
        !          2780: 
        !          2781: Thu Sep 17 14:53:51 1992  Tim Moore  ([email protected])
        !          2782: 
        !          2783:        * pa.h (FUNCTION_ARG_ADVANCE, FUNCTION_ARG): Fix double integer
        !          2784:        argument alignment.
        !          2785:        (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE, WCHAR_SIZE): Define.
        !          2786:        * pa-hpux.h, pa-ghpux.h (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE,
        !          2787:        WCHAR_SIZE): Define for hpux.
        !          2788:        * x-pa, t-pa : New files.
        !          2789:        * configure (hppa cases): add definitions for xmake_file and
        !          2790:        tmake_file.
        !          2791: 
        !          2792: Wed Sep 16 22:22:15 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          2793: 
        !          2794:        * i386.c (print_operand): Don't abort if error: might have been a
        !          2795:        user asm.
        !          2796: 
        !          2797:        * i386.md (addsi3,ashlsi3): Handle the case where the stack
        !          2798:        pointer appears as an index reg.
        !          2799: 
        !          2800: Wed Sep 16 21:22:23 1992  Richard Stallman  ([email protected])
        !          2801: 
        !          2802:        * cse.c (fold_rtx): For SUBREG, actually test subreg_lowpart_p in the
        !          2803:        code to handle narrowing subregs.  And exclude binary ops like DIV
        !          2804:        where truncating the args is not valid.
        !          2805: 
        !          2806:        * libgcc2.c (__CTOR_LIST__, __DTOR_LIST__): Moved to separate member.
        !          2807:        * Makefile.in (LIB2FUNCS): Added _ctors.
        !          2808: 
        !          2809: Wed Sep 16 23:28:41 1992  Paul Eggert  ([email protected])
        !          2810: 
        !          2811:        * cexp.y (parse_number): Warn about '9' in octal constants.
        !          2812:        Commonize overflow detection for various radices.
        !          2813: 
        !          2814: Wed Sep 16 19:33:37 1992  Torbjorn Granlund  ([email protected])
        !          2815: 
        !          2816:        * pa.md (casesi): Use emit_jump_insn to emit casesi0 pattern.
        !          2817:        (xorsi3): Remove `r' from output template.
        !          2818:        (movstrsi recognizer): Add `+' to operand 0 & 1 constraints.
        !          2819: 
        !          2820: Wed Sep 16 14:53:51 1992  Michael Meissner  ([email protected])
        !          2821: 
        !          2822:        * mips.h (MIPS_VERSION): Set Meissner version # to 25.
        !          2823: 
        !          2824:        * mips.c (gen_int_relational): Eliminate all vestiages of
        !          2825:        figuring out whether the comparison will always be true or false.
        !          2826:        Let the optimizer figure it out.
        !          2827:        (gen_conditional_branch): Ditto.
        !          2828:        (function_epilogue): Print correct number of half-pic pointers
        !          2829:        and references.
        !          2830:        (prev_half_pic_refs): New static variable.
        !          2831:        (prev_half_pic_ptrs): New static variable.
        !          2832: 
        !          2833: Tue Sep 15 16:10:47 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          2834: 
        !          2835:        * toplev.c (rest_of_decl_compilation):  Call `dwarfout_file_scope_decl'
        !          2836:        immediately for actual *definitions* of file-scope variables (and
        !          2837:        file-scope typedefs too).
        !          2838: 
        !          2839: Tue Sep 15 20:56:31 1992  Jim Wilson  ([email protected])
        !          2840: 
        !          2841:        * fixincludes (EXINIT): Clear it to avoid problems with bad values.
        !          2842:        * fixinc.svr4 (EXINIT): Likewise.       
        !          2843: 
        !          2844:        * print-tree.c (print_node): Don't print blank line for null
        !          2845:        fields in a TREE_VEC.
        !          2846: 
        !          2847:        * cccp.c (macroexpand): Don't output another error message if have
        !          2848:        already output error message returned from macarg.
        !          2849: 
        !          2850:        * c-decl.c (grokparms): Copy parm list if it isn't permanent,
        !          2851:        instead of copying it if temporary allocation has been turned off.
        !          2852: 
        !          2853:        * final.c (only_leaf_regs_used): Check for global_regs.
        !          2854: 
        !          2855:        * c-parse.y (typespec): Don't warn if pedantic when typeof used.
        !          2856: 
        !          2857:        * c-tree.h (lang_identifier): Add limbo_value field for out of
        !          2858:        scope block level extern declarations.
        !          2859:        (IDENTIFIER_LIMBO_VALUE): New define, to access that field.     
        !          2860:        * c-decl.c (print_lang_identifier): Print value of limbo field.
        !          2861:        (pushdecl): Check an extern decl against both previous global and
        !          2862:        previous limbo declarations.  For global declarations, clear limbo
        !          2863:        value field.  For block level extern declarations, set limbo field
        !          2864:        if zero.
        !          2865:        (grokdeclarator): If this is a block level extern, then allocate
        !          2866:        it on the permanent obstack, not the temporary obstack.
        !          2867: 
        !          2868: Tue Sep 15 15:42:24 1992  Paul Eggert  ([email protected])
        !          2869: 
        !          2870:        * tree.c (int_fits_type_p): Negative ints never fit unsigned
        !          2871:        types, and unsigned ints with top-bit-set never fit signed types.
        !          2872:        * c-lex.c (yylex): Integer constant is unsigned for purposes of
        !          2873:        int_fits_type_p so that it compares huge constants properly.
        !          2874: 
        !          2875: Tue Sep 15 14:44:51 1992  Michael Meissner  ([email protected])
        !          2876: 
        !          2877:        * i386.md (string move, string compare): Always issue cld
        !          2878:        instruction before doing a rep string move, so that we are
        !          2879:        guaranteed that the bytes are moved/compared correctly.
        !          2880: 
        !          2881: Tue Sep 15 00:09:06 1992  Richard Stallman  ([email protected])
        !          2882: 
        !          2883:        * gstdarg.h: (va_arg): Cast ptr to void *, then to TYPE *.
        !          2884:        * va-i960.h, va-m88k.h, va-mips.h, va-pa.h, va-pyr.h, va-sparc.h:
        !          2885:        Likewise.
        !          2886: 
        !          2887:        * rtl.c (ftell): Declaration deleted.
        !          2888: 
        !          2889: Mon Sep 14 15:17:09 1992  Michael Meissner  ([email protected])
        !          2890: 
        !          2891:        * configure (arg processing): Add --with-stabs switch.
        !          2892:        (all mips configurations, except decrose): If --with-stabs, use
        !          2893:        the configuration file that emits stabs as the debug debug
        !          2894:        configuration, rather than the native MIPS ECOFF format.
        !          2895: 
        !          2896: Mon Sep 14 13:28:29 1992  Torbjorn Granlund  ([email protected])
        !          2897: 
        !          2898:        * configure (option case statement): Index with `$next_arg' instead
        !          2899:        of `next_arg'.  Clean up order and indentation for switches.
        !          2900:        (several places): Remove space around assignment `='.
        !          2901:        (usage printing): Don't use `-n' for echo (SysV lossage).
        !          2902:        Print config.status with `tail +2'.
        !          2903: 
        !          2904: Mon Sep 14 23:46:19 1992 Paul Eggert ([email protected])
        !          2905: 
        !          2906:        * c-lex.c (yylex): Warn about integers so large that they are unsigned.
        !          2907: 
        !          2908:        * cexp.y (parse_number): Diagnose integer constants that are too large.
        !          2909:        Diagnose duplicate `l' and `u' suffixes.  Diagnose ` 0x ' and ` 0a '.
        !          2910:        Warn about integer constants that are so large that they are unsigned.
        !          2911: 
        !          2912: Mon Sep 14 10:26:34 1992  Charles Hannum  ([email protected])
        !          2913: 
        !          2914:        * reload1.c (init_reload): Fix typo in last change.
        !          2915: 
        !          2916: Mon Sep 14 01:17:58 1992  Richard Stallman  ([email protected])
        !          2917: 
        !          2918:        * reload1.c (init_reload): For reg+reg+const, try various regs.
        !          2919: 
        !          2920: Sun Sep 13 01:08:06 1992  Paul Eggert  ([email protected])
        !          2921: 
        !          2922:        * cexp.y (exp): Detect signed integer overflow.
        !          2923:        Replace `(unsigned)' with `(unsigned long)'.  When
        !          2924:        evaluating << and >>, compute the correct answer without shifting
        !          2925:        by more than HOST_BITS_PER_LONG, or by a negative quantity.
        !          2926:        (integer_overflow, left_shift, right_shift): New functions.
        !          2927: 
        !          2928: Sun Sep 13 02:00:52 1992  Torbjorn Granlund  ([email protected])
        !          2929: 
        !          2930:        * arm.md: Clean up indentation.
        !          2931: 
        !          2932:        * pa.c (output_load_address): Removed.  Nothing uses it.
        !          2933:        * pa.md (high:DI recognizer): Add return \"\".
        !          2934:        * pa.md (sCC, bCC expanders): Remove constraints.
        !          2935:        * pa.md (and-with-immediate optimizer): New pattern.
        !          2936:        * pa.md (ior-with-immediate optimizer): New pattern.
        !          2937:        * pa.c (consec_zeros_p, and_operand, ior_mask_p, ior_operand,
        !          2938:        output_and, output_ior): New functions.
        !          2939:        * pa.h (output_and, output_ior): Declare.
        !          2940:        * pa.h (CONST_OK_FOR_LETTER_P): Add 'O' and 'P'.
        !          2941:        * pa.c (compute_xdepi_operands_from_integer): New function.
        !          2942:        Some code come from output_zdepi.
        !          2943:        (output_zdepi): Removed.
        !          2944:        (depi_cint_operand): New name for zdepi_operand.
        !          2945:        * pa.md (adddi3): Extend to handle CONST_INT.
        !          2946:        * pa.md (movstrsi): Change `!= 4' => `< 4' in test for alignment.
        !          2947:        * pa.md (negsi2): Don't use @ for just one output template.
        !          2948:        * pa.md (and-not patterns): Make them canonical.  Put operands in
        !          2949:        the right order.
        !          2950:        * pa.md (casesi): Rewrite.  Used to be buggy and slow.
        !          2951:        * pa.md (several patterns): Make sure # of attribute alternatives
        !          2952:        match # of constraint alternatives.
        !          2953:        Return assembler output template instead of calling output_asm_insn.
        !          2954:        Don't write to operands[n] for n >= max operand number in the
        !          2955:        pattern, use xoperands instead.
        !          2956: 
        !          2957: Sat Sep 12 15:06:57 1992  Richard Stallman  ([email protected])
        !          2958: 
        !          2959:        * regclass.c (record_reg_classes):
        !          2960:        Ignore leading % when examining constraint.
        !          2961:        Don't bypass usual cost computation when a pseudo "matches"
        !          2962:        a non-pseudo in matching operands.
        !          2963: 
        !          2964:        * c-lex.c (yylex): If integer value overflows so highword is negative, 
        !          2965:        it needs unsigned long long.
        !          2966: 
        !          2967: Fri Sep 11 21:09:53 1992  Richard Stallman  ([email protected])
        !          2968: 
        !          2969:        * sys-types.h (va_alist): Supply `int' as the type to define it as.
        !          2970: 
        !          2971: Fri Sep 11 12:39:39 1992  Jeffrey A. Law  ([email protected])
        !          2972: 
        !          2973:        * pa.md (non-[cf]branch define_delay): Use a single delay description
        !          2974:        for the delay slots in "branch", "call", and "milli" insns.
        !          2975:        (fbranch define_delay): fbranches have a single delay slot which
        !          2976:        may be nullified when the branch is taken (regardless of direction
        !          2977:        or distance to the target.)
        !          2978:        (in_branch_delay attribute): Disallow fbranch insns explicitly. 
        !          2979:        (floating point branches): Use "fbranch" attribute for these insns.
        !          2980:        Update output template to properly handle nullification.
        !          2981: 
        !          2982: Fri Sep 11 10:34:45 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          2983: 
        !          2984:        * c-decl.c (duplicate_decls):  For file-scope redefinitions,
        !          2985:        error message distinguishes previous definitions from mere decls.
        !          2986: 
        !          2987: Fri Sep 11 01:07:11 1992  Richard Stallman  ([email protected])
        !          2988: 
        !          2989:        * c-convert.c (convert_to_integer): Don't pass truncation thru lshift
        !          2990:        if shift count >= width of narrower type.  Instead, just use 0.
        !          2991: 
        !          2992:        * we32k.h (SIZE_TYPE): Defined.
        !          2993: 
        !          2994: Fri Sep 11 00:03:45 1992  Paul Eggert  ([email protected])
        !          2995: 
        !          2996:        * c-decl.c (finish_struct): Don't assume that a target integer
        !          2997:        fits in a HOST_WIDE_INT when checking bit-field widths.
        !          2998:        * c-typeck.c (build_binary_op): Likewise, when checking shift widths.
        !          2999: 
        !          3000: Thu Sep 10 22:23:10 1992  Richard Stallman  ([email protected])
        !          3001: 
        !          3002:        * optabs.c (expand_binop):
        !          3003:        Convert op1 of shift libcall to word_mode.
        !          3004: 
        !          3005: Thu Sep 10 18:14:36 1992  Tim Moore  ([email protected])
        !          3006: 
        !          3007:        * final.c (shorten_branches): Do shorten branches with delay slots
        !          3008:        if the number of delay slots is constant.
        !          3009:        * genattrtab.c (write_const_num_delay_slots): New function;
        !          3010:        creates const_num_delay_slots ().
        !          3011:        (main): Call it.
        !          3012:        * genattr.c (main): Write declaration for const_num_delay_slots ().
        !          3013: 
        !          3014: Thu Sep 10 17:33:42 1992  Michael Meissner  ([email protected])
        !          3015: 
        !          3016:        * mips.md (all move patterns): Do not allow memory to memory or
        !          3017:        non-zero constant to memory moves to be generated, which causes
        !          3018:        reload to generate the load/store using spilled registers, and
        !          3019:        does not allow for efficient CSE or scheduling to be done.
        !          3020: 
        !          3021:        * dec-gosf1.h, iris4g.h: New files.
        !          3022: 
        !          3023: Thu Sep 10 12:46:17 1992  Torbjorn Granlund  ([email protected])
        !          3024: 
        !          3025:        * pa.md (casesi): Add `&' to constraint for clobber operand.
        !          3026: 
        !          3027:        * optabs.c (expand_binop): Fix typo, `mode' => `methods'.
        !          3028: 
        !          3029: Thu Sep 10 00:21:05 1992  Richard Stallman  ([email protected])
        !          3030: 
        !          3031:        * optabs.c (expand_binop): Delete #ifdef GPC; complex code now uncond.
        !          3032: 
        !          3033:        * optabs.c (init_fixtab): Fix typo for fix_truncdfqi2.
        !          3034: 
        !          3035: Wed Sep  9 13:25:53 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          3036: 
        !          3037:        * c-common.c (declare_function_name):  Allow for anonymous function.
        !          3038: 
        !          3039: Wed Sep  9 15:56:09 1992  Richard Stallman  ([email protected])
        !          3040: 
        !          3041:        * Makefile.in (mostlyclean): Delete xlimits.h.
        !          3042: 
        !          3043:        * final.c (output_addr_const):
        !          3044:        If 2nd arg of MINUS is negative integer, put it in parens.
        !          3045: 
        !          3046: Wed Sep  9 10:10:30 1992  Michael Meissner  ([email protected])
        !          3047: 
        !          3048:        * va-mips.h (va_arg): Handle structures larger than 8 bytes.
        !          3049:        (all macros): Put __ in front of all macro arguments.
        !          3050: 
        !          3051: Wed Sep  9 00:45:02 1992  Richard Stallman  ([email protected])
        !          3052: 
        !          3053:        * sol2-crt1.asm (.nope): Really store into environ.
        !          3054: 
        !          3055:        * libgcc2.c (__gcc_bcmp): New function, in cond on L__gcc_bcmp.
        !          3056:        * Makefile.in (LIB2FUNCS): Add L__gcc_bcmp.
        !          3057: 
        !          3058:        * expr.c (expand_expr): Support IN_EXPR.
        !          3059: 
        !          3060: Tue Sep  8 20:04:43 1992  Paul Eggert  ([email protected])
        !          3061: 
        !          3062:        * c-convert.c (convert_to_integer): When optimizing LSHIFT_EXPR and
        !          3063:        RSHIFT_EXPR, do compares at tree level.
        !          3064: 
        !          3065:        * tree.c (build_index_type, build_index_2_type): Don't pass
        !          3066:        HOST_WIDE_INT to routine expecting an int.  Don't pass negative
        !          3067:        value even if hash code is INT_MIN.
        !          3068: 
        !          3069: Tue Sep  8 17:35:51 1992  Richard Stallman  ([email protected])
        !          3070: 
        !          3071:        * dbxout.c (dbxout_type_fields): Handle nameless subrecords for Pascal.
        !          3072:        (dbxout_type): Handle CHAR_TYPE, BOOLEAN_TYPE. FILE_TYPE, SET_TYPE.
        !          3073: 
        !          3074:        * news.h (ASM_OUTPUT_OPCODE): Deleted.
        !          3075: 
        !          3076:        * c-parse.y (stmt): In for stmt, put proper lineno before increment.
        !          3077:        Don't call position_after_white_space.
        !          3078: 
        !          3079: Tue Sep  8 06:31:17 1992  Michael Meissner  ([email protected])
        !          3080: 
        !          3081:        * cp-typeck.c (constant_print_warning): Deleted.
        !          3082: 
        !          3083: Tue Sep  8 05:26:19 1992  Mike Stump  (mrs@hal)
        !          3084: 
        !          3085:        Tue Aug 18 23:56:16 1992  Ron Guilmette  (rfg at netcom.com)
        !          3086: 
        !          3087:        * tree.h (BINFO_VPTR_FIELD):  Added to support debugging
        !          3088:        information about virtual base class pointers.
        !          3089: 
        !          3090: Mon Sep  7 19:39:45 1992  Brendan Kehoe  ([email protected])
        !          3091: 
        !          3092:        * c-typeck.c (constant_print_warning): Deleted.
        !          3093:        * c-common.c: Moved here.
        !          3094: 
        !          3095: Mon Sep  7 17:03:07 1992  Paul Eggert ([email protected])
        !          3096: 
        !          3097:        * fold-const.c (fold): Check abs for constant integer overflow.
        !          3098: 
        !          3099: Mon Sep  7 01:31:42 1992  Richard Stallman  ([email protected])
        !          3100: 
        !          3101:        * c-common.c (check_case_value): Call constant_expression_warning.
        !          3102: 
        !          3103:        * cse.c (simplify_binary_operation): For DIV by 0, do nothing.
        !          3104: 
        !          3105:        * c-decl.c (duplicate_decls): Set DECL_INLINE in newdecl
        !          3106:        so it is copied into olddecl.
        !          3107: 
        !          3108: Sun Sep  6 08:53:46 1992  Fred Fish  (fnf at fishpond)
        !          3109: 
        !          3110:        * m68k.md (fsglmul pattern): If FSGLMUL_USE_S, opcode has .s, not .x.
        !          3111:        * amix.h (FSGLMUL_USE_S): Defined.
        !          3112: 
        !          3113: Sun Sep  6 17:42:33 1992  Jeffrey A. Law  ([email protected])
        !          3114: 
        !          3115:        * pa.md (indirect_jump): Annul the next instruction if the delay
        !          3116:        slot could not be filled instead of emitting a nop.
        !          3117: 
        !          3118:        * pa.c (output_function_prologue): Undo Aug. 13 change.
        !          3119:        If profiling, then this function makes calls.  Reflect this in
        !          3120:        CALLINFO.
        !          3121:        (output_function_epilogue): If profiling, then be restore "rp" here.
        !          3122: 
        !          3123:        * pa.md (use_milli_regs attribute): Deleted, not necessary anymore.
        !          3124:        All references deleted.
        !          3125:        * pa.c (use_milli_regs): Deleted.
        !          3126: 
        !          3127: Sun Sep  6 17:11:00 1992  Torbjorn Granlund  ([email protected])
        !          3128: 
        !          3129:        * arm.h (MOVE_MAX): Define as 4.
        !          3130: 
        !          3131:        * ns32k.c (hard_regno_mode_ok): Don't abort if unknown mode,
        !          3132:        return 0 instead.  Declare argument MODE as `enum machine_mode'.
        !          3133: 
        !          3134:        * i860.h (HARD_REGNO_MODE_OK): Allow BLKmode.
        !          3135: 
        !          3136: Sun Sep  6 16:57:12 1992  Richard Stallman  ([email protected])
        !          3137: 
        !          3138:        * expr.c (init_expr_once): Don't try HARD_REGNO_MODE_OK on VOIDmode
        !          3139:        or BLKmode.
        !          3140: 
        !          3141: Sun Sep  6 14:27:57 1992  Michael Meissner  ([email protected])
        !          3142: 
        !          3143:        * cp-typeck.c (constant_expression_warning): New fn from c-typeck.c.
        !          3144: 
        !          3145: Sun Sep  6 09:11:46 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          3146: 
        !          3147:        * c-decl.c (duplicate_decls): Don't set DECL_EXTERNAL in olddecl.
        !          3148:        Preserve DECL_UID of olddecl.
        !          3149: 
        !          3150: Sun Sep  6 03:37:21 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          3151: 
        !          3152:        * i386.md (cmpstrsi): Rewrite expander to handle operands correctly.
        !          3153: 
        !          3154: Sat Sep  5 22:55:53 1992  Richard Kenner  ([email protected])
        !          3155: 
        !          3156:        * combine.c (try_combine): Make change missing from last modification
        !          3157:        to splitting code.
        !          3158: 
        !          3159: Sat Sep  5 19:21:03 1992  Richard Stallman  ([email protected])
        !          3160: 
        !          3161:        * stor-layout.c (layout_type): Caller must give size of FILE_TYPE.
        !          3162: 
        !          3163: Sat Sep  5 16:34:50 1992  Torbjorn Granlund  ([email protected])
        !          3164: 
        !          3165:        * arm.c (before functions): Remove xmalloc decl.
        !          3166:        (arm_asm_output_label): Cast value from xmalloc.
        !          3167: 
        !          3168:        * arm.md (storehi): Use match_operand for operand 0.
        !          3169:        Use gen_lowpart to change mode of operand 0.
        !          3170:        (storeinthi): Use match_operand for operand 0.
        !          3171:        Change output code to reassign operand 0.
        !          3172:        (truncsihi2, truncsiqi2, trunchiqi2): Remove these patterns.
        !          3173: 
        !          3174: Sat Sep  5 02:39:37 1992  Richard Stallman  ([email protected])
        !          3175: 
        !          3176:        * news.h (ASM_OUTPUT_OPCODE): Defined.
        !          3177: 
        !          3178: Sat Sep  5 18:52:21 1992  Jukka Virtanen  ([email protected])
        !          3179: 
        !          3180:        * stor-layout.c (layout_type): Handle BOOLEAN_TYPE, CHAR_TYPE,
        !          3181:        and FILE_TYPE for Pascal. 
        !          3182:        (fixup_signed_type): New function.
        !          3183: 
        !          3184:        * optabs.c (init_optabs): Use __gcc_bcmp, not real bcmp.
        !          3185:        (expand_unop): Handle NEG for complex modes.
        !          3186:        (expand_binop): Likewise.
        !          3187:        (expand_complex_binop): New function.
        !          3188: 
        !          3189:        * expr.c (emit_move_insn): When moving word by word,
        !          3190:        mark the whole thing as a libcall block.
        !          3191:        (group_insns): New function.
        !          3192:        (expand_expr):
        !          3193:        Implement COMPLEX_EXPR, REALPART_EXPR, IMAGPART_EXPR, CONJ_EXPR.
        !          3194: 
        !          3195:        * print-tree.c (print_node): Handle BOOLEAN_TYPE and CHAR_TYPE.
        !          3196:        * emit-rtl.c (gen_highpart): New function.
        !          3197: 
        !          3198: Fri Sep  4 23:20:59 1992  Richard Stallman  ([email protected])
        !          3199: 
        !          3200:        * i860.md (mulsi3_big): Use low half of result.
        !          3201:        Use offset 1 in subregs in actual fmlow insn.
        !          3202:        (fmlow pattern): Split this into alternatives for big and little end.
        !          3203: 
        !          3204:        * regclass.c (record_reg_class): For matching operands, handle
        !          3205:        case where the earlier one is not a pseudo like the case
        !          3206:        where the later one is not a pseudo.
        !          3207: 
        !          3208: Fri Sep  4 17:24:11 1992  Torbjorn Granlund  ([email protected])
        !          3209: 
        !          3210:        * pa.c (output_move_double): Use %R to store at auto-incr/decr
        !          3211:        addr.  Split incr and decr cases for store.
        !          3212: 
        !          3213: Fri Sep  4 03:49:05 1992  Richard Stallman  ([email protected])
        !          3214: 
        !          3215:        * gcc.c (main): No program should return the error_count!
        !          3216:        Return 2 if failure due to signal, 1 if just errors.
        !          3217:        (execute): Increment signal_count.
        !          3218: 
        !          3219:        * move-if-change: Undo previous change.
        !          3220: 
        !          3221:        * c-decl.c (grokparms): Copy arg type list to savable obstack if nec.
        !          3222: 
        !          3223: Fri Sep  4 19:40:32 1992  Paul Eggert  ([email protected])
        !          3224: 
        !          3225:        * c-typeck.c (constant_expression_warning): Now works;
        !          3226:        it reports signed integer overflow in constant expressions,
        !          3227: 
        !          3228:        * fold-const.c (left_shift_overflows, same_sign, overflow_sum_sign):
        !          3229:        New macros.
        !          3230:        (add_double, div_and_round_double, lshift_double, mul_double,
        !          3231:        neg_double, const_binop, fold): Check for signed integer overflow.
        !          3232:        Propagate overflow flags from operands to result.
        !          3233:        (const_binop, fold_convert): Use pedwarn for overflow warnings.
        !          3234:        Say `constant expression', not `constant folding', for user's sake.
        !          3235: 
        !          3236: Thu Sep  3 22:28:41 1992  Brendan Kehoe  ([email protected])
        !          3237: 
        !          3238:        Complete 12th Cygnus<-->FSF merge.
        !          3239: 
        !          3240:        Thu Sep  3 12:29:24 1992  Brendan Kehoe  ([email protected])
        !          3241: 
        !          3242:        These changes are propagated from changes to c-*.c.
        !          3243: 
        !          3244:        Mon Aug 17 16:28:48 1992  Chip Salzenberg  ([email protected])
        !          3245: 
        !          3246:        * cp-decl.c (finish_function): Test only can_reach_end for the
        !          3247:        warning about reaching the end of a non-void function.
        !          3248:        (grokdeclarator): When promoting an argument, retain unsignedness
        !          3249:        if traditional or if promoted type is not really getting wider.
        !          3250: 
        !          3251:        * cp-parse.y (datadef): For empty declaration, use pedwarn.
        !          3252: 
        !          3253:        Mon Aug 17 17:08:11 1992  Chip Salzenberg  ([email protected])
        !          3254: 
        !          3255:        * cp-cvt.c (convert): When converting to variant of same type, fold.
        !          3256: 
        !          3257:        Wed Aug 19 16:58:41 1992  Chip Salzenberg  ([email protected])
        !          3258: 
        !          3259:        * cp-typeck.c (default_conversion): Convert enumeral types to
        !          3260:        appropriate _signed_ type unless -traditional.
        !          3261: 
        !          3262:        Tue Aug  4 13:11:36 1992  Chip Salzenberg  ([email protected])
        !          3263: 
        !          3264:        * cp-cvt.c (convert): If main variants match, 
        !          3265:        but the type is not identical, make a NOP_EXPR.
        !          3266: 
        !          3267:        * cp-decl.c (warn_redundant_decls): Declared.
        !          3268:        (duplicate_decls): Optionally warn about redundant declations.
        !          3269:        (pushdecl): Never reuse global fcn decl in place of local extern;
        !          3270:        just copy some info from it.
        !          3271:        (init_decl_processing): __builtin_saveregs returns void *.
        !          3272:        (store_parm_decls, finish_function, start_method, finish_method):
        !          3273:        Compare TYPE_MAIN_VARIANT against void_type_node.
        !          3274: 
        !          3275:        * cp-decl2.c (warn_redundant_decls): Defined.
        !          3276:        (lang_decode_option): Decode -Wredundant-decls.
        !          3277: 
        !          3278:        * cp-typeck.c (build_conditional_expr): Don't use type1 as
        !          3279:        temporary variable; set result_type directly.
        !          3280: 
        !          3281:        Tue Aug  4 12:04:17 1992  Chip Salzenberg  ([email protected])
        !          3282: 
        !          3283:        * cp-tree.h (C_PROMOTING_INTEGER_TYPE_P):  Defined.
        !          3284:        * cp-class.c (finish_struct):  Use it.
        !          3285:        * cp-decl.c (duplicate_decls, grokdeclarator):  Ditto.
        !          3286:        (grokparms, start_function):  Ditto.
        !          3287:        * cp-typeck.c (self_promoting_args_p, default_conversion):  Ditto.
        !          3288:        * cp-parse.y (primary): Set TREE_CONSTANT in the NOP_EXPR for an enum.
        !          3289: 
        !          3290:        Tue Aug  4 09:17:32 1992  Chip Salzenberg  ([email protected])
        !          3291: 
        !          3292:        * cp-decl.c (duplicate_decls, grokdeclarator, grokparms): 
        !          3293:        Use TYPE_MAIN_VARIANT when comparing against specific types.
        !          3294:        (build_enumerator): Use STRIP_TYPE_NOPS.
        !          3295:        (start_function): Force main() to return "int", not just any
        !          3296:        integral type.
        !          3297: 
        !          3298:        * cp-typeck.c (self_promoting_args_p, default_conversion): 
        !          3299:        Use TYPE_MAIN_VARIANT when comparing against specific types.
        !          3300:        (unsigned_type, signed_type): If type is not known, return it
        !          3301:        unchanged instead of returning its TYPE_MAIN_VARIANT.
        !          3302:        (build_binary_op_nodefault): Use TYPE_MAIN_VARIANT when
        !          3303:        comparing against specific types.  Also use STRIP_TYPE_NOPS.
        !          3304:        Also copy error messages from equivalent code in c-typeck.c.
        !          3305: 
        !          3306:        * cp-parse.y (primary): Wrap a NOP_EXPR around an enum value.
        !          3307: 
        !          3308:        Wed Sep  2 18:06:47 1992  Mike Stump  ([email protected])
        !          3309: 
        !          3310:        Wed Sep  2 17:33:59 1992  Chip Salzenberg  ([email protected])
        !          3311: 
        !          3312:        * cp-decl.c (grokdeclarator):  Default friends to being PUBLIC.
        !          3313: 
        !          3314:        Tue Sep  1 12:33:01 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          3315: 
        !          3316:        * cp-init.c (do_friends):  Always return `void_type_node'.
        !          3317: 
        !          3318:        * cp-decl.c (grokparms): Call digest_init on default arguments for
        !          3319:        formal parameters.
        !          3320: 
        !          3321:        * cp-decl.c (xref_tag): The BINFO records describing individual
        !          3322:        inheritances aren't shared in the lattice.
        !          3323: 
        !          3324:        Tue Sep  1 12:27:17 1992  Mike Stump  ([email protected])
        !          3325: 
        !          3326:        * cp-call.c (convert_harshness, compute_conversion_costs):  The
        !          3327:        READONLY flag for a const object could be down in the type of the
        !          3328:        reference.
        !          3329: 
        !          3330:        * cp-call.c (compute_conversion_costs):  Don't ignore the cost of
        !          3331:        converting the first argument, if it is not a method.  Fixes Mon Aug
        !          3332:        31 22:32:34 change.
        !          3333: 
        !          3334:        Tue Sep  1 11:58:52 1992  Mike Stump  ([email protected])
        !          3335: 
        !          3336:        * cp-tree.h (THIS_NAME):  Use the name ``this'' instead of the more
        !          3337:        cryptic name ``$t''.
        !          3338: 
        !          3339:        Mon Aug 31 22:32:34 1992  Mike Stump  ([email protected])
        !          3340: 
        !          3341:        * cp-init.c (build_member_call):  When forming method calls that use
        !          3342:        a qualified name, convert the instance pointer to the type implied
        !          3343:        by the qualification.  Base::member_func(); converts this to be a
        !          3344:        (Base *).
        !          3345: 
        !          3346:        * cp-call.c (compute_conversion_costs):  Don't penalize conversion
        !          3347:        of the instance pointer on method calls, as they could be pointers
        !          3348:        to base classes.
        !          3349: 
        !          3350:        Mon Aug 31 18:34:33 1992  Brendan Kehoe  ([email protected])
        !          3351: 
        !          3352:        * cp-decl.c (start_function): When a friend function is being
        !          3353:        defined, put it in (lexical) scope of the class in which it appears.
        !          3354: 
        !          3355:        Mon Aug 31 09:57:27 1992  Brendan Kehoe  ([email protected])
        !          3356: 
        !          3357:        * cp-typeck.c (build_modify_expr): For assignments to member
        !          3358:        variables like "X::i", call resolve_offset_ref to get the lhs; all
        !          3359:        the code and checking was in there, it just wasn't being used.
        !          3360: 
        !          3361:        * cp-class.c (finish_struct_methods): Give the name of the class
        !          3362:        in question when reporting that all its member functions are
        !          3363:        private.
        !          3364: 
        !          3365:        Sun Aug 30 08:34:03 1992  Mike Stump  ([email protected])
        !          3366: 
        !          3367:        * cp-decl2.c (setup_vtbl_ptr): Disable the code, until problems can
        !          3368:        be worked around.
        !          3369: 
        !          3370:        Sat Aug 29 10:34:10 1992  Mike Stump  ([email protected])
        !          3371: 
        !          3372:        * cp-init.c (emit_base_init): Undo Sat Jan 18 12:06:58 change by
        !          3373:        tiemann that incorrectly makes -pedantic initialization of virtual
        !          3374:        base classes 1 or more levels deep impossible.
        !          3375: 
        !          3376:        Sat Aug 29 10:03:07 1992  Mike Stump  ([email protected])
        !          3377: 
        !          3378:        * cp-class.c (finish_struct): Allow extern "C" functions to be
        !          3379:        friends.
        !          3380: 
        !          3381:        Sat Aug 29 04:43:22 1992  Mike Stump  ([email protected])
        !          3382: 
        !          3383:        * cp-parse.y (used_extern_spec), cp-decl.c (start_decl,
        !          3384:        start_function): Make sure extern in extern "C" (fndef | datadef)
        !          3385:        applies to only one decl. Fixes problem introduced on Thu Aug 20
        !          3386:        16:11:58.
        !          3387: 
        !          3388:        Thu Aug 27 09:33:13 1992  Brendan Kehoe  ([email protected])
        !          3389: 
        !          3390:        * cp-decl.c (grokdeclarator): Name operators properly when
        !          3391:        complaining about trying to declare it as a method when not in a
        !          3392:        class.
        !          3393: 
        !          3394:        * cp-decl.c (grok_reference_init): Forbid volatile->const refs,
        !          3395:        and vice-versa.  Also make the tests apply to all types, not just
        !          3396:        aggregates.  (Now fully compliant with ANSI C++ June 5 1996 WP
        !          3397:        section 8.4.3.5.)
        !          3398: 
        !          3399:        * cp-decl.c (shadow_tag): Don't allow a function to be a member of
        !          3400:        an anonymous union.
        !          3401: 
        !          3402:        * cp-class.c (finish_struct): For a type that's nested within a
        !          3403:        class, use the class value itself when checking a typedef that uses
        !          3404:        that new nested type.
        !          3405: 
        !          3406:        Wed Aug 26 20:24:07 1992  Brendan Kehoe  ([email protected])
        !          3407: 
        !          3408:        * cp-decl.c (decls_match): When converting from a
        !          3409:        pseudo-METHOD_TYPE for a static member fn, handle the static
        !          3410:        function being both in the new and old declarations.
        !          3411:        (revert_static_member_fn): New function.
        !          3412: 
        !          3413:        * cp-call.c (build_method_call): Put out proper line number for
        !          3414:        error with the use of a private constructor.
        !          3415: 
        !          3416:        * cp-decl.c (grokdeclarator): If a storage class is erroneously
        !          3417:        specified for an operator, print the operator's name out properly in
        !          3418:        the error message (e.g., print `+' instead of `__pl').
        !          3419: 
        !          3420:        * cp-decl.c (grokdeclarator): Allow neither constructors nor
        !          3421:        destructors to be declared const or volatile.
        !          3422: 
        !          3423:        * cp-decl.c (grok_op_properties): New argument VIRTUALP.
        !          3424:        Use it to disallow declaring new or delete as virtual.  Also
        !          3425:        use coerce_new_type() and coerce_delete_type() to
        !          3426:        sanity-check overloading of new and delete.
        !          3427:        (grokfndecl): Give grok_op_properties if the decl is virtual.
        !          3428:        (start_method): Likewise.
        !          3429: 
        !          3430:        * cp-tree.c (lvalue_p, ADDR_EXPR case): Casts to references are
        !          3431:        lvalues.
        !          3432: 
        !          3433: Thu Sep  3 02:46:44 1992  Richard Stallman  ([email protected])
        !          3434: 
        !          3435:        * caller-save.c (setup_save_areas): Don't look at WORDS_BIG_ENDIAN.
        !          3436: 
        !          3437:        * fixincludes: If we find a link pointing to ., make a similar
        !          3438:        link to ., not a link to an absolute name.
        !          3439:        (stdio.h): Change stdio.h to use stdarg.h to get va_list.
        !          3440: 
        !          3441:        * cexp.y: Comment syntax fix.
        !          3442: 
        !          3443: Thu Sep  3 01:48:16 1992  Torbjorn Granlund  ([email protected])
        !          3444: 
        !          3445:        * we32k.md (casesi): Use match_dup for second mention of operand 4.
        !          3446: 
        !          3447: Wed Sep  2 06:58:32 1992  Michael Meissner  ([email protected])
        !          3448: 
        !          3449:        * gcc.c (default_compilers): Add missing comma between strings, so
        !          3450:        that traditional compilers can compile gcc.c.
        !          3451:        (main): Don't pass strcpy or strlen a NULL pointer if some of the
        !          3452:        spec strings in default_compilers are NULL.
        !          3453:        (validate_all_switches): Don't dereference a NULL pointer if some of
        !          3454:        the spec strings in defalut_compilers are NULL.
        !          3455: 
        !          3456:        * gcc.c (main): Use new loop var J to avoid conflict with I.
        !          3457: 
        !          3458: Wed Sep  2 19:09:02 1992  Jeffrey A. Law  ([email protected])
        !          3459: 
        !          3460:        * caller-save.c (init_caller_save): If we were unable to
        !          3461:        find a simple insn which meets all its constraints to save
        !          3462:        and restore with a single insn in a mode, then set 
        !          3463:        regno_save_mode to VOIDmode to insure that this mode is never
        !          3464:        used to caller-save the current register.
        !          3465: 
        !          3466: Wed Sep  2 12:34:39 1992  Jim Wilson  ([email protected])
        !          3467: 
        !          3468:        * caller-save.c (insert_save_restore): Correct test for
        !          3469:        determining whether multiple registers can be saved.
        !          3470: 
        !          3471:        * sparc.md (SImode ldd peepholes): Add `f' to constraints.
        !          3472: 
        !          3473:        * sparcv4.h (HANDLE_PRAGMA): Delete.
        !          3474:        * sparc.c (handle_pragma_token): Delete.
        !          3475: 
        !          3476:        * config/spc-sol2.h: Change the location of the Sun bundled C 
        !          3477:        compiler in MD_STARTFILE_PREFIX (for backup defaults).
        !          3478: 
        !          3479: Wed Sep  2 09:11:16 1992  Tom Wood  ([email protected])
        !          3480: 
        !          3481:        * m88k.h (MOVE_MAX): Express in bytes not bits.
        !          3482: 
        !          3483:        * m88k.c (output_ascii): Output known escape characters and don't
        !          3484:        terminate the constant if an octal escape is used.
        !          3485: 
        !          3486: Wed Sep  2 06:38:37 1992  Richard Kenner  ([email protected])
        !          3487: 
        !          3488:        * combine.c (make_compound_operation, case ASHIFTRT): Add new
        !          3489:        code to handle (ashiftrt (neg (ashift FOO C1) C2)) just like we
        !          3490:        currently handle (ashiftrt (OP (ashiftrt FOO C1) C2) C2).
        !          3491: 
        !          3492: Wed Sep  2 00:15:42 1992  Richard Stallman  ([email protected])
        !          3493: 
        !          3494:        * Makefile.in (install): Add semicolon to make an empty command.
        !          3495: 
        !          3496:        * reload.c (find_reloads): If have any earlyclobbers, don't let any
        !          3497:        reloads overlap with them.  Make everything RELOAD_OTHER.
        !          3498: 
        !          3499:        * move-if-change: Give status 1 if file is unchanged.
        !          3500: 
        !          3501:        * Makefile.in (SYSTEM_HEADER_DIR): New variable.
        !          3502:        (xlimits.h): New target, broken out from install-limits-h.
        !          3503:        Look in SYSTEM_HEADER_DIR for system's limits.h.
        !          3504:        (start.encap): Dep on xlimits.h.
        !          3505:        (install-limits-h): Install xlimits.h already made.
        !          3506:        * cross-make (SYSTEM_HEADER_DIR): Overridden.
        !          3507: 
        !          3508:        * x-i386sco (X_CFLAGS): Deleted.
        !          3509:        * x-i386sco4: New file, like old x-i386sco.
        !          3510:        * configure (i386-*-sco3.2v4*): Use x-i386sco4.
        !          3511: 
        !          3512:        * t-sol2 (gmon.o): Find gmon-sol2.c in config.
        !          3513: 
        !          3514:        * c-typeck.c (process_init_constructor): Fix bugs in previous change.
        !          3515: 
        !          3516: Tue Sep  1 23:51:19 1992  Brendan Kehoe  ([email protected])
        !          3517: 
        !          3518:        * gcc.c (default_compilers, ".C" and ".ii"): Pass `+e*' into cc1plus.
        !          3519:        (process_command): Allow +e[012] to be passed down into cc1plus.
        !          3520:        * cp-decl.c (lang_decode_option): The options `+e0' thru `+e2' will
        !          3521:        be coming in prefixed as `-+e'.
        !          3522: 
        !          3523: Tue Sep  1 20:09:29 1992  Paul Eggert  ([email protected])
        !          3524: 
        !          3525:        * print-tree.c (print_node): Avoid 1 << (HOST_BITS_PER_INT - 1),
        !          3526:        which overflows.  Use unsigned % to compute HASH.
        !          3527: 
        !          3528: Tue Sep  1 17:23:28 1992  Tim Moore  (moore@hal)
        !          3529: 
        !          3530:        * pa.h (CPP_SPEC, TARGET_SWITCHES): new flags: -mnosnake,
        !          3531:        -mpa-risc-1-0, -mpa-risc-1-1.
        !          3532:        (ASM_DECLARE_FUNCTION_NAME): Emit argument descriptors for all
        !          3533:        general registers if current_function_varargs.
        !          3534: 
        !          3535: Tue Sep  1 11:27:08 1992  Brendan Kehoe  ([email protected])
        !          3536: 
        !          3537:        * sparc.c (handle_pragma_token): Only use if HANDLE_SYSV_PRAGMA
        !          3538:        isn't defined.  (We'll be getting the fn from c-pragma.c, then.)
        !          3539: 
        !          3540: Sat Aug 29 13:44:21 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          3541: 
        !          3542:        * tree.h (current_block):  Decl deleted.
        !          3543:        (set_block):  Declared.
        !          3544:        * stmt.c (expand_fixup):  Create a BLOCK node (via pushlevel/poplevel)
        !          3545:        to represent an artificial scope containing all of the fixup code.
        !          3546:        Also emit NOTE_INSN_BLOCK_BEG/NOTE_INSN_BLOCK_END for that block.
        !          3547:        (fixup_gotos):  Declaration of NEWBLOCK deleted.
        !          3548:        Call `set_block' to use the BLOCK made in expand_fixup.
        !          3549:        Deleted code to insert NEWBLOCK into block hierarchy.
        !          3550:        * c-decl.c, cp-decl.c (current_block):  Function deleted.
        !          3551:        (set_block):  New function.
        !          3552:        (poplevel): If using a previously created block,
        !          3553:        don't insert it into the parent level.
        !          3554:        * emit-rtl.c (emit_insns_after): Update last_insn if nec.
        !          3555: 
        !          3556: Tue Sep  1 10:53:58 1992  Torbjorn Granlund  ([email protected])
        !          3557: 
        !          3558:        * pa.c (output_move_double): Use `ldo' for immediate adds (instead
        !          3559:        of `addi' with bad syntax).
        !          3560:        (output_load_address): Likewise.
        !          3561: 
        !          3562: Tue Sep  1 02:41:13 1992  Richard Stallman  ([email protected])
        !          3563: 
        !          3564:        * tree.h (struct tree_type): Make `align' field an int.
        !          3565: 
        !          3566:        * c-tree.h (IDENTIFIER_LIMBO_VALUE): New macro.
        !          3567:        (struct lang_identifier): New field limbo_value.
        !          3568: 
        !          3569: Mon Aug 31 12:59:22 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          3570: 
        !          3571:        * tree.c (make_node): Fix typo in July 6 change:
        !          3572:        assignment of DECL_IN_SYSTEM_HEADER was inserted in bad place.
        !          3573: 
        !          3574: Mon Aug 31 21:28:08 1992  Jim Wilson  ([email protected])
        !          3575: 
        !          3576:        * sched.c (sched_analyze_2): Remove an explicit dependence between
        !          3577:        an insn that uses CC0 and the immediately previous insn
        !          3578:        (SCHED_GROUP_P represents the dependence).
        !          3579:        (schedule_block): Only check sets_cc0_p on an insn.
        !          3580: 
        !          3581: Mon Aug 31 15:32:13 1992  Richard Stallman  ([email protected])
        !          3582: 
        !          3583:        * gcc.c (struct compiler): spec field is now array of 4 elements.
        !          3584:        (read_specs): Clear the entire new element of compilers.
        !          3585:        (lookup_compiler): Copy all of spec array.  Check element 0 for @.
        !          3586:        (main): Concatenate all elements of compiler spec.
        !          3587:        (validate_all_switches): Validate from all elements of compiler spec.
        !          3588:        (default_compilers): Split CPP commands into separate strings.
        !          3589: 
        !          3590: Mon Aug 31 10:06:16 1992  Jeffrey A. Law  ([email protected])
        !          3591: 
        !          3592:        * caller-save.c (restore_referenced_regs): When restoring a
        !          3593:        referenced hard register, use CEIL instead of a truncating divide
        !          3594:        to determine the maximum number of registers to restore.
        !          3595:        (insert_save_restore): Document maxrestore parameter.
        !          3596:        (CEIL): Define.
        !          3597: 
        !          3598: Mon Aug 31 04:02:21 1992  Richard Stallman  ([email protected])
        !          3599: 
        !          3600:        * fold-const.c (const_binop): Delete special case for mult by 3.
        !          3601: 
        !          3602:        * toplev.c (lang_options): Add terminating zero.
        !          3603: 
        !          3604:        * configure.bat: Remove version number from initial message.
        !          3605: 
        !          3606: Sun Aug 30 17:22:11 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          3607: 
        !          3608:        * cccp.c (do_pragma): In prev. change, really use U_CHAR *, not char *.
        !          3609: 
        !          3610:        * aix386.h, i386gas.h, i386sun.h, i386v.h, i386v4.h, i386vgas.h,
        !          3611:        seq386.h  (TARGET_DEFAULT,VALUE_REGNO,FUNCTION_VALUE_REGNO):
        !          3612:        Move from here,
        !          3613:        * unx386.h (TARGET_DEFAULT,VALUE_REGNO,FUNCTION_VALUE_REGNO):
        !          3614:        To here.
        !          3615:        (TARGET_DEFAULT): Make TARGET_IEEE_FP default on.
        !          3616:        (VALUE_REGNO): Test for MODE_FLOAT instead of specific modes.
        !          3617:        (VALUE_REGNO,FUNCTION_VALUE_REGNO): MODE_FLOAT return reg depends on
        !          3618:        TARGET_FLOAT_RETURNS_IN_80387.
        !          3619: 
        !          3620:        * i386.h (TARGET_FLOAT_RETURNS_IN_80387): New macro.
        !          3621:        (TARGET_SWITCHES): Add "no-80387", "no-soft-float",
        !          3622:        "fp-ret-in-387", and "no-fp-ret-in-387".
        !          3623:        Change no* switches to no-*.
        !          3624:        (CONDITIONAL_REGISTER_USAGE): Make 387 regs fixed if the 387 is not
        !          3625:        used at all.
        !          3626:        (REG_CLASS_FROM_LETTER): Constraint letters 'f', 't' and 'u' are
        !          3627:        NO_REGS if the 387 is not used.
        !          3628:        (TRAMPOLINE_TEMPLATE): Use GEN_INT to generate const_int rtx.
        !          3629: 
        !          3630:        * x-i386v4: New file.
        !          3631:        (CLIB): Get alloca from libucb.a.
        !          3632:        * configure (i386-*-sysv4*): Use x-i386v4.
        !          3633: 
        !          3634: Sun Aug 30 15:32:54 1992  Dennis Glatting  (dglattin at trirex.com)
        !          3635: 
        !          3636:        * objc-actions.c (create_builtin_decl): Set TREE_STATIC.
        !          3637:        Don't set DECL_EXTERNAL or TREE_PUBLIC.
        !          3638: 
        !          3639: Sun Aug 30 03:08:48 1992  Richard Stallman  ([email protected])
        !          3640: 
        !          3641:        * c-parse.y (initlist): Handle ranges of array elements.
        !          3642:        * c-typeck.c (process_init_constructor): Handle ranges.
        !          3643: 
        !          3644:        * fixincludes: When link points to a dir $dirname outside $INPUT,
        !          3645:        copy that dir into $LIB/root$dirname.  Translate the link itself
        !          3646:        into a link to that new dir.  Make a file DONE in each treetop dir
        !          3647:        so no treetop is scanned twice.  Improve progress messages.
        !          3648: 
        !          3649: Sat Aug 29 22:41:49 1992  Richard Kenner  ([email protected])
        !          3650: 
        !          3651:        * alpha.h (ASM_FILE_START): Object file version number now 8.0.
        !          3652: 
        !          3653:        * alpha.h (ADJUST_COST): New macro.
        !          3654:        * alpha.c (alpha_adjust_cost): New function.
        !          3655:        * alpha.md: Adjust function unit delays and more precisely
        !          3656:        describe function units.
        !          3657:        
        !          3658:        * alpha.h (CONST_OK_FOR_LETTER_P): Add new letters `O' and `P'.
        !          3659:        * alpha.c (print_operand, case 'P'): New case.
        !          3660:        * alpha.md (ashldi3): Special-case shifts by 1, 2, and 3 bits to
        !          3661:        use arithmetic instructions.
        !          3662:        Add pattern for sign-extending shifts by 1, 2, and 3 bits.
        !          3663: 
        !          3664:        * alpha.h (INITIALIZE_TRAMPOLINE): Use Pmode when appropriate.
        !          3665:        (FUNCTION_MODE): Use Pmode.
        !          3666: 
        !          3667:        * alpha.md (div/mod): Indicate that reg 27 is clobbered too.
        !          3668: 
        !          3669:        * alpha.md (cmov): Add define_split for if_then_else/plus case.
        !          3670: 
        !          3671:        * expr.c (emit_library_call): Pass correct number of args to
        !          3672:        convert_to_mode.
        !          3673: 
        !          3674:        * expr.c (emit_block_move): Eliminate unnecessary test against
        !          3675:        HOST_BITS_PER_WIDE_INT.
        !          3676: 
        !          3677:        * optabs.c (expand_{binop,unop}): Don't make invalid
        !          3678:        paradoxical SUBREGs.
        !          3679: 
        !          3680:        * genattrtab.c (RTL_HASH, attr_rtx): Avoid warnings by casting
        !          3681:        pointers to HOST_WIDE_INT instead of int.
        !          3682: 
        !          3683: 
        !          3684: Sat Aug 29 15:35:58 1992  Richard Stallman  ([email protected])
        !          3685: 
        !          3686:        * toplev.c (lang_options): New table.
        !          3687:        (main): Recognize all language-dependent options of any language
        !          3688:        and always treat them as language-specific and valid.
        !          3689: 
        !          3690:        * c-decl.c (c_decode_option): -fnotraditional really undoes
        !          3691:        -ftraditional.  Handle -fno-traditional also.
        !          3692: 
        !          3693: Sat Aug 29 00:34:01 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          3694: 
        !          3695:        * reg-stack.c (record_reg_life): Mark an unused reg as such, even
        !          3696:        if it appears in SET_SRC.
        !          3697: 
        !          3698: Fri Aug 28 17:40:49 1992  John F Carr  (jfc at Athena.MIT.EDU)
        !          3699: 
        !          3700:        * tree.c (chainon): Check for op2 being the last elt of the chain.
        !          3701: 
        !          3702: Fri Aug 28 13:26:56 PDT 1992  Ron Guilmette  (rfg at ncd.com)
        !          3703: 
        !          3704:        * cccp.c (do_pragma): Use rindex, not strrchr.
        !          3705: 
        !          3706:        * tree.h (BLOCK_END_NOTE):  Macro definition added.
        !          3707:        (struct tree_block):  `end_note' field added.
        !          3708:        * stmt.c (last_block_end_note):  New variable.
        !          3709:        (remember_end_note):  New function.
        !          3710:        (expand_end_bindings): Save NOTE_INSN_BLOCK_END in last_block_end_note.
        !          3711:        * c-decl.c, cp-decl.c (poplevel):  Call `remember_end_note' for each
        !          3712:        newly created BLOCK node.
        !          3713:        * integrate.c (adjust_copied_decl_tree):  New function.
        !          3714:        (save_for_inline_copying):  When making copies of NOTE_INSN_BLOCK_END
        !          3715:        notes, stash a "forwarding" pointer in the original to point to the
        !          3716:        copy.  Also, when all BLOCKs & insns for a function have been copied,
        !          3717:        call `adjust_copied_decl_tree' to fixup the end_note pointers in the
        !          3718:        copied BLOCKs.
        !          3719: 
        !          3720: Fri Aug 28 13:25:59 1992  Richard Stallman  ([email protected])
        !          3721: 
        !          3722:        * cccp.c (do_pragma): In prev. change, use U_CHAR *, not char *.
        !          3723: 
        !          3724: Fri Aug 28 09:11:56 1992  Tom Wood  ([email protected])
        !          3725: 
        !          3726:        * m88k.h (ADJUST_COST): Add definition.
        !          3727: 
        !          3728: Thu Aug 27 18:27:02 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          3729: 
        !          3730:        * c-decl.c (init_decl_processing): Add sin and cos as built-in
        !          3731:        functions.
        !          3732:        * expr.c (expand_builtin): Likewise.
        !          3733: 
        !          3734:        * expr.h (sin_optab,cos_optab): Declare optabs for sin and cos.
        !          3735:        * optabs.c (sin_optab,cos_optab): Define them.
        !          3736:        (init_optabs): Initialize them.
        !          3737: 
        !          3738:        * tree.h (BUILT_IN_SIN,BUILT_IN_COS): New builtin codes.
        !          3739: 
        !          3740:        * reg-stack.c (record_note_if_dead): Delete function.
        !          3741:        (record_reg_life_pat): Rewrite to handle any sort of pattern.
        !          3742:        (record_reg_life): Change interface to record_reg_life_pat.
        !          3743: 
        !          3744:        (stack_reg_life_analysis): Don't assume that MODE_FLOAT values are
        !          3745:        always returned in a float reg.
        !          3746: 
        !          3747:        (subst_stack_regs_pat): Add support for sin and cos insns.
        !          3748: 
        !          3749:        * i386.c (all gen_rtx (CONST_INT) references): Use GEN_INT to
        !          3750:        generate const_int rtx.
        !          3751:        (legitimize_pic_address): Pass NULL_RTX instead of "0" as pointer.
        !          3752: 
        !          3753:        * i386.md (all patterns): Use GEN_INT instead of gen_rtx to get
        !          3754:        const_ints.
        !          3755:        Avoid double-negative "! NON_*" constructs for clarity.
        !          3756:        Pass NULL_PTR as null parameter instead of 0.
        !          3757: 
        !          3758:        (sqrtM2): Patterns are only valid if IEEE FP or -ffast-math.
        !          3759:        (sinM2,cosM2): New patterns.
        !          3760:        (zero_extract test): New pattern.
        !          3761:        (movstrsi): Rewrite expander to handle operands correctly.
        !          3762: 
        !          3763: Thu Aug 27 16:58:09 1992  Michael Meissner  ([email protected])
        !          3764: 
        !          3765:        * genattrtab.c (MAX_DIGITS): New macro to gauge how much space we
        !          3766:        need to reserve when printing integers.
        !          3767:        (expand_delays): Use sizeof and MAX_DIGITS to properly size the
        !          3768:        strings when calling attr_printf.
        !          3769:        (expand_units): Ditto.
        !          3770:        (encode_units_mask): Ditto.
        !          3771:        (make_numeric_value): Ditto.
        !          3772:        (oballoc): New macro, to allocate from the hash_obstack.
        !          3773:        (convert_const_symbol_ref): Call oballoc instead of xmalloc.
        !          3774:        (get_attr_value): Ditto.
        !          3775:        (fill_attr): Ditto.
        !          3776:        (make_length_attrs): Ditto.
        !          3777:        (gen_attr): Ditto.
        !          3778:        (gen_insn): Ditto.
        !          3779:        (gen_delay): Ditto.
        !          3780:        (gen_unit): Ditto.
        !          3781:        (find_attr): Ditto.
        !          3782:        (main): Ditto.
        !          3783: 
        !          3784: Thu Aug 27 14:47:16 1992  Mike Stump  ([email protected])
        !          3785: 
        !          3786:        * cp-decl.c (curent_block, struct binding_level, poplevel): Copy
        !          3787:        Tue Aug 25 16:29:47 and Wed Aug 26 01:56:30 changes in c-decl.c by
        !          3788:        rms.
        !          3789: 
        !          3790: Thu Aug 27 01:32:11 1992  Paul Eggert  ([email protected])
        !          3791: 
        !          3792:        * c-lex.c, cp-lex.c (readescape): DEL isn't printable.
        !          3793:        * c-typeck.c (check_format): Likewise.
        !          3794: 
        !          3795: Wed Aug 26 20:42:36 1992  Richard Stallman  ([email protected])
        !          3796: 
        !          3797:        * c-lex.c (readescape): For \x, don't include leading 0's in count.
        !          3798: 
        !          3799:        * c-decl.c (init_decl_processing): Fix type of __builtin_constant_p.
        !          3800: 
        !          3801:        * expr.c (emit_block_move): When trying movstrMM, cvt size to mode MM.
        !          3802: 
        !          3803:        * c-parse.y (stmt): For computed goto, convert arg to void *.
        !          3804: 
        !          3805:        * fold-const.c (fold): Do A op C1 ? A : C2 opt only for INTEGER_TYPEs.
        !          3806: 
        !          3807: Wed Aug 26 20:19:56 1992  Mike Stump  ([email protected])
        !          3808: 
        !          3809:        * cp-decl.c (insert_block, delete_block): New functions.
        !          3810:        * cp-parse.y (primary, using compstmt): Call delete_block instead
        !          3811:        of clearing TREE_USED.
        !          3812: 
        !          3813:        11th Cygnus<-->FSF merge.
        !          3814: 
        !          3815:        Wed Aug 26 12:02:41 1992  Mike Stump  ([email protected])
        !          3816: 
        !          3817:        * cp-decl.c (finish_function):  Don't core dump when a conversion is
        !          3818:        ambiguous.
        !          3819: 
        !          3820:        Tue Aug 25 16:32:42 1992  Mike Stump  ([email protected])
        !          3821: 
        !          3822:        * cp-init.c (build_new), cp-typeck.c (build_c_cast): Handle ``new
        !          3823:        type ( ... )'' better.  Default constructors and better error
        !          3824:        checking.
        !          3825: 
        !          3826:        Tue Aug 25 01:21:48 1992  Mike Stump  ([email protected])
        !          3827: 
        !          3828:        * cp-decl2.c (finish_file):  Mark " @%$#@!" as being internal.
        !          3829: 
        !          3830:        Mon Aug 24 16:40:15 1992  Brendan Kehoe  ([email protected])
        !          3831: 
        !          3832:        * cp-lex.c (check_newline): For `#pragma implementation', use
        !          3833:        strcmp to check if it was done at the top level, rather than relying
        !          3834:        on the pointers being the same.
        !          3835: 
        !          3836:        Mon Aug 24 20:48:16 1992  Mike Stump  ([email protected])
        !          3837: 
        !          3838:        Fri Aug 21 14:19:27 1992  Ron Guilmette  (rfg at ncd.com)
        !          3839: 
        !          3840:        * cp-decl2.c (grokclassfn): Mark the artificial `this' parameter as
        !          3841:        "artificial".
        !          3842: 
        !          3843:        Thu Aug 20 22:59:16 1992  Mike Stump  ([email protected])
        !          3844: 
        !          3845:        * cp-spew.c (arbitrate_lookup): Make sure the type name in an
        !          3846:        argument list followed by &, or &) is seen as a type name, even when
        !          3847:        there is an enumeration constant with the exact same name.
        !          3848: 
        !          3849:        Thu Aug 20 21:58:30 1992  Mike Stump  ([email protected])
        !          3850: 
        !          3851:        * cp-search.c (get_first_matching_virtual): Don't core dump when a
        !          3852:        declaration of a static member is seen with the same name as a base
        !          3853:        class virtual function.
        !          3854: 
        !          3855:        Thu Aug 20 21:20:31 1992  Mike Stump  ([email protected])
        !          3856: 
        !          3857:        * cp-decl.c (finish_function): Don't core dump on parse errors.
        !          3858: 
        !          3859:        Thu Aug 20 20:52:43 1992  Mike Stump  ([email protected])
        !          3860: 
        !          3861:        * cp-method.c (build_component_type_expr): Don't core dump on parse
        !          3862:        errors.
        !          3863: 
        !          3864:        Thu Aug 20 18:31:58 1992  Mike Stump  ([email protected])
        !          3865: 
        !          3866:        Mon Aug 17 17:08:11 1992  Chip Salzenberg  ([email protected])
        !          3867: 
        !          3868:        Copy some changes from the C front-end:
        !          3869: 
        !          3870:        * cp-type2.c (process_init_constructor): Warn about partly bracketed
        !          3871:        initializers.
        !          3872:        * cp-typeck.c (build_component_ref): Don't warn for compound and
        !          3873:        conditional expressions when pedantic.  These are valid in ANSI C.
        !          3874: 
        !          3875:        Thu Aug 20 16:11:58 1992  Mike Stump  ([email protected])
        !          3876: 
        !          3877:        * cp-decl.c (start_decl), cp-parse.y (have_extern_spec): extern "C"
        !          3878:        int i; is only a declaration, but a definition, make it so.
        !          3879: 
        !          3880:        Thu Aug 20 14:46:39 1992  Mike Stump  ([email protected])
        !          3881: 
        !          3882:        Thu Aug 20 02:36:39 1992  Ron Guilmette  (rfg at ncd.com)
        !          3883: 
        !          3884:        * cp-lex.c (cons_up_default_function): Use DECL_SOURCE_LINE = 0 for
        !          3885:        compiler generated things, not DECL_IGNORED_P.
        !          3886: 
        !          3887:        Thu Aug 20 13:13:45 1992  Mike Stump  ([email protected])
        !          3888: 
        !          3889:        Wed Aug 19 13:09:45 1992  Ron Guilmette  (rfg at ncd.com)
        !          3890: 
        !          3891:        * cp-decl.c (grokdeclarator): Propagate some changes from the C
        !          3892:        front-end to deal with variable sized arrays.
        !          3893: 
        !          3894:        Wed Aug 19 16:55:43 1992  Mike Stump  ([email protected])
        !          3895: 
        !          3896:        * cp-cvt.c (convert_to_reference): Improve wording on error message.
        !          3897:        * cp-method.c (type_as_string), cp-pt.c
        !          3898:        (mangle_class_name_for_template), cp-xref.c (GNU_xref_decl): Delete
        !          3899:        first argument to type_as_string as it is not needed anymore.
        !          3900: 
        !          3901:        Wed Aug 19 15:29:02 1992  Mike Stump  ([email protected])
        !          3902: 
        !          3903:        Wed Aug 19 13:09:45 1992  Ron Guilmette  (rfg at ncd.com)
        !          3904: 
        !          3905:        * cp-decl.c (kept_level_p): Update from C frontend.
        !          3906: 
        !          3907:        Wed Aug 19 14:47:08 1992  Mike Stump  ([email protected])
        !          3908: 
        !          3909:        * cp-decl2.c (groktypefield): Old style conversion operators
        !          3910:        are being desupported.  Conversion operators much have an
        !          3911:        `operator' in front of them.
        !          3912: 
        !          3913:        Wed Aug 19 01:57:04 1992  Mike Stump  ([email protected])
        !          3914: 
        !          3915:        * cp-call.c (ideal_candidate): Fix bug introduced on Jan 21
        !          3916:        7:24:21.  Warn about ambiguous function calls with multiple
        !          3917:        same cost conversions.
        !          3918: 
        !          3919:        Wed Aug 19 00:08:18 1992  Mike Stump  ([email protected])
        !          3920: 
        !          3921:        * cp-decl.c (grok_enum_decls):  Remove invalid error message.
        !          3922: 
        !          3923:        Mon Aug 17 18:59:18 1992  Mike Stump  ([email protected])
        !          3924: 
        !          3925:        * cp-cvt.c (convert_to_reference, convert,
        !          3926:        build_type_conversion_1, build_type_conversion), cp-init.c
        !          3927:        (build_dynamic_new), cp-typeck.c (build_modify_expr_1,
        !          3928:        convert_for_initialization): Always use constructor_name, and
        !          3929:        never TYPE_IDENTIFIER (type) and similar things.
        !          3930:        * cp-init.c (expand_aggr_init_1): Try TYPE_HAS_CONSTRUCTOR
        !          3931:        before wasting time trying build_method_call.
        !          3932:        * cp-xref.c: Don't include memory.h.
        !          3933: 
        !          3934:        Mon Aug 17 15:10:21 1992  Mike Stump  ([email protected])
        !          3935: 
        !          3936:        * cp-init.c (expand_aggr_init_1): Check for ambiguous
        !          3937:        conversion.  One through constructor and the other through a
        !          3938:        user defined conversion operator.
        !          3939: 
        !          3940:        Mon Aug 17 11:51:27 1992  Mike Stump  ([email protected])
        !          3941: 
        !          3942:        * cp-call.c (convert_harshness): When an argument is T, a T&
        !          3943:        should be choosen over a const T& when selecting overloaded
        !          3944:        functions.
        !          3945: 
        !          3946:        Mon Aug 17 01:37:06 1992  Mike Stump  ([email protected])
        !          3947: 
        !          3948:        * cp-call.c (build_method_call): The second argument to
        !          3949:        operator delete is sometimes magically deleted.
        !          3950:        * cp-decl.c (init_decl_processing, grokfndecl): Global
        !          3951:        operator delete never has two arguments.
        !          3952: 
        !          3953:        Wed Aug  5 18:54:19 1992  Mike Stump  ([email protected])
        !          3954: 
        !          3955:        * cp-class.c (finish_struct), cp-tree.c (layout_basetypes):
        !          3956:        Make sure VFIELD_BASEs are aligned.  This fixes a really
        !          3957:        annoying problem that causes code that uses complex
        !          3958:        inheritance hierarchies that have virtual bases to get a
        !          3959:        segmentation fault.
        !          3960: 
        !          3961:        Wed Aug  5 12:35:07 1992  Mike Stump  ([email protected])
        !          3962: 
        !          3963:        Wed Aug  5 08:10:34 1992  Tom Wood  ([email protected])
        !          3964: 
        !          3965:        * cp-tree.c (__eprintf): `line' is unsigned.
        !          3966:        * cp-lex.c: Include stdlib.h and locale.h if needed.
        !          3967:        * cp-typeck.c (mark_addressable): Use DECL_EXTERNAL not
        !          3968:        TREE_EXTERNAL.
        !          3969: 
        !          3970:        Wed Aug  5 03:20:07 1992  Mike Stump  ([email protected])
        !          3971: 
        !          3972:        * cp-class.c (finish_struct_methods): Check to make sure
        !          3973:        operator delete is not overloaded.
        !          3974:        * cp-decl.c (grokfndecl): Check to make sure operator delete
        !          3975:        is declared properly.
        !          3976: 
        !          3977:        Tue Aug  4 16:52:28 1992  Mike Stump  ([email protected])
        !          3978: 
        !          3979:        Mon Aug  3 22:55:04 1992  Michael Meissner  ([email protected])
        !          3980: 
        !          3981:        * cp-decl.c (grokdeclarator): Make sure const and volatile get
        !          3982:        put on the type built when building reference types.
        !          3983:        * cp-parse.y (attrib):  tree_cons takes three arguments, not
        !          3984:        two.
        !          3985:        * cp-tree.h:  Add hash_chainon, build_virtual_init,
        !          3986:        build_vbase_delete, build_vbase_vtables_init.
        !          3987:        * cp-typeck.c (build_modify_expr_1. build_modify_expr):
        !          3988:        build_unary_op takes three arguments, not two.
        !          3989:        
        !          3990:        Tue Aug  4 16:07:57 1992  Mike Stump  ([email protected])
        !          3991: 
        !          3992:        Sat Aug  1 16:52:20 1992  John Carr  ([email protected])
        !          3993: 
        !          3994:        * cp-decl.c ():  Make sure the base type of an ARRAY_TYPE is
        !          3995:        layedout before using it.
        !          3996: 
        !          3997: Wed Aug 26 17:04:45 1992  Richard Stallman  ([email protected])
        !          3998: 
        !          3999:        * tree.h (current_block): Declared.
        !          4000: 
        !          4001: Wed Aug 26 15:42:11 1992  Jeffrey A. Law  ([email protected])
        !          4002: 
        !          4003:        Major rework to have caller-saves emit load/store double insns when
        !          4004:        possible and to avoid useless resaving of registers restored for
        !          4005:        source accesses only.
        !          4006:        * caller-save.c (toplevel): All arrays are multi-dimensional to
        !          4007:        hold information for multiple save/restore insns.  New variable
        !          4008:        hard_regs_need_restore.
        !          4009:        (choose_hard_reg_mode): New argument `nregs' indicating how many
        !          4010:        hard registers are desired.  All callers changed.
        !          4011:        (init_caller_save): Change initialization to handle multiple
        !          4012:        register saves.  A call-used register can not be live across
        !          4013:        if we can not find a single register mode to save it in.
        !          4014:        (multiple register saves are optional)
        !          4015:        (init_save_areas): Change initialization of regno_save_mem to
        !          4016:        handle multiple register saves.
        !          4017:        (setup_save_areas): Allocate space for consecutive hard registers
        !          4018:        in aligned consecutive memory locations.   When allocating space
        !          4019:        for consecutive hard registers, also initialize regno_save_mem
        !          4020:        for each hard register stored as a single word.
        !          4021:        (save_call_clobbered_regs): Initialize hard_regs_need_restore.
        !          4022:        Set hard_regs_need_restore to hard_regs_saved after crossing
        !          4023:        a call.  Also recompute n_regs_saved.  At the end of a basic block
        !          4024:        we need only restore registers in hard_regs_need_restore.
        !          4025:        (set_reg_live, clear_reg_live): Do the right thing for 
        !          4026:        hard_regs_need_restore and hard_regs_saved.
        !          4027:        (restore_referenced_regs): Just return if X is a clobber.
        !          4028:        Test hard_regs_need_restore to determine when to restore a hard
        !          4029:        register from the save area.
        !          4030:        (insert_save_restore): Now returns the number of extra registers
        !          4031:        saved/restored.  New argument `maxrestore' which constrains how
        !          4032:        many hard registers should be restored.  All callers changed.
        !          4033:        Do stores of consecutive registers with double store insns if
        !          4034:        possible.  Else do them with single word insns. Likewise for
        !          4035:        loads, except constrained by maxrestore.  Set hard_regs_saved
        !          4036:        and hard_regs_need_restore appropriately to minimize useless
        !          4037:        saves into the save area.  Test against hard_regs_need_restore
        !          4038:        when trying to restore multiple regs and similarly test against
        !          4039:        hard_regs_saved when storing multiple regs. 
        !          4040: 
        !          4041: 
        !          4042: Wed Aug 26 14:24:28 1992  Michael Meissner  ([email protected])
        !          4043: 
        !          4044:        * mips.h (LINK_SPEC): Pass -shared, -non_shared on to linker.
        !          4045:        * mips-bsd.h (LINK_SPEC): Ditto.
        !          4046:        * mips-n5.h (LINK_SPEC): Ditto.
        !          4047:        * mips-svr4.h (LINK_SPEC): Ditto.
        !          4048:        * mips-sysv.h (LINK_SPEC): Ditto.
        !          4049:        * iris.h (LINK_SPEC): Ditto.
        !          4050:        * dec-osf1.h (LINK_SPEC): Ditto.
        !          4051: 
        !          4052:        * dec-osf1.h (DECSTATION): Don't define, since decstatn.h which is
        !          4053:        included defines it.
        !          4054:        (OBJECT_FILE_COFF): Undefine, since the DEC OSF/1 ldfcn doesn't
        !          4055:        look like the coff version.
        !          4056: 
        !          4057:        * decstatn.h (LINK_SPEC): Don't define if already defined.
        !          4058: 
        !          4059: Wed Aug 26 13:56:08 1992  Tom Wood  ([email protected])
        !          4060: 
        !          4061:        * reorg.c:  Enhance to fill the last delay slot of a call with an
        !          4062:        unconditional jump.
        !          4063:        (fill_simple_delay_slots): Look for the case of a call/branch
        !          4064:        first.  If this applies, record the jump as `last_delay_insn'.
        !          4065:        Later, don't look for additional delay insns if the last one has
        !          4066:        alreay been filled. 
        !          4067:        (mark_target_live_regs): A sequence may end in an unconditional
        !          4068:        branch.
        !          4069: 
        !          4070:        * m88k.md (define_function_unit): Correct and simplify memory unit
        !          4071:        specification. 
        !          4072: 
        !          4073: Wed Aug 26 01:56:30 1992  Richard Stallman  ([email protected])
        !          4074: 
        !          4075:        * c-decl.c (poplevel): Store into BLOCK iff it is non-null.
        !          4076: 
        !          4077: Tue Aug 25 23:24:45 1992  Jim Wilson  ([email protected])
        !          4078: 
        !          4079:        * sched.c: Add #ifdef INSN_SCHEDULING around variables only used
        !          4080:        by schedule_insns.
        !          4081:        (INSN_QUEUE_SIZE): Delete default definition.
        !          4082: 
        !          4083:        * optabs.c, expr.c: Partially undo Mar 7 change.  Only call
        !          4084:        emit_library_call with no_queue == 1 for const functions.
        !          4085: 
        !          4086:        * sparc.c (SF_MODES): Allow SImode in fp registers.
        !          4087:        (output_floatsisf2, output_floatsidf2, output_floatsitf2): Delete.
        !          4088:        * sparc.h: Delete declarations of the above 3 functions.
        !          4089:        * sparc.md (float*, fix*): Rewrite to match hardware; take/put
        !          4090:        integer input/output from/to fp register instead of memory or
        !          4091:        general register.  Delete 6 now obsolete combiner patterns.
        !          4092: 
        !          4093: Tue Aug 25 16:40:15 1992  Brendan Kehoe  ([email protected])
        !          4094: 
        !          4095:        * cccp.c (do_pragma): Warn if `#pragma implementation "foo.h"' is
        !          4096:        invoked after "foo.h" has been included.
        !          4097: 
        !          4098: Tue Aug 25 16:29:47 1992  Richard Stallman  ([email protected])
        !          4099: 
        !          4100:        * stmt.c (struct goto_fixup): New field context.
        !          4101:        (fixup_cleanups): Function deleted.
        !          4102:        (fixup_gotos): Put the fixup in a block, and put that block
        !          4103:        into its proper place.  Use sequences, not reorder_insns.
        !          4104: 
        !          4105:        * c-decl.c (current_block): New function.
        !          4106:        (struct binding_level): New field this_block.
        !          4107:        (poplevel): Use this_block if nonzero, rather than making new BLOCK.
        !          4108: 
        !          4109:        * sched.c (INSN_QUEUE_SIZE): Add default definition.
        !          4110: 
        !          4111: Tue Aug 25 15:19:26 1992  Tom Wood  ([email protected])
        !          4112: 
        !          4113:        * sched.c (schedule_block): Add a virtual cycle counter CLOCK.
        !          4114:        Pass CLOCK to schedule_insn.        
        !          4115:        Compute the tail in the scheduling loop, not before it.
        !          4116:        Enable the stall code that advances the insn queue.  
        !          4117:        Select the insn to schedule and block others with schedule_select.
        !          4118:        (adjust_priority): Renamed from launch_link.
        !          4119:        (schedule_insn): Renamed from launch_links.
        !          4120: 
        !          4121:        * genattrtab.c (struct attr_desc): Add unsigned_p field.
        !          4122:        (struct function_unit_op): Add issue_delay, conflict_exp, and
        !          4123:        issue_exp fields.  Drop busyexp field.
        !          4124:        (struct function_unit): Add needs_blockage_function,
        !          4125:        needs_range_function, issue_delay, and max_blockage fields.  Drop
        !          4126:        costexp, and busy delay fields.
        !          4127:        (enum operator): Add POS_MINUS_OP, EQ_OP, MIN_OP, RANGE_OP.
        !          4128:        (operate_exp): Implement new ops.
        !          4129:        (make_internal_attr): Set unsigned_p based on the value of SPECIAL.
        !          4130:        (write_attr_get): Function is unsigned when unsigned_p is true.
        !          4131:        (write_attr_valueq): Write hex value of large constants in a comment.
        !          4132:        (simplify_by_exploding): Check for EXP having no EQ_ATTR expressions
        !          4133:        and for all values as the default.
        !          4134:        (find_and_mark_used_attributes): Add TERMS and NTERMS parameters.
        !          4135:        (max_attr_value): Allow IF_THEN_ELSE.
        !          4136:        (simplify_knowing, write_complex_function, extend_range): New
        !          4137:        functions.
        !          4138:        (gen_unit): Use local variables to name the fields.  Change the
        !          4139:        meaning of busy-delay to issue-delay.
        !          4140:        (expand_units): Compute issue_exp.  Write attributes for computing
        !          4141:        `<name>_unit_blockage' and `<name>_unit_blockage_range' functions.
        !          4142:        Compute max_blockage, and the needs_*_function values.
        !          4143:        (write_function_unit_info): Write blockage function and conflict cost
        !          4144:        functions using write_complex_function.  Write new function_unit_desc
        !          4145:        fields.
        !          4146:        * genattr.c (extend_range, init_range): New functions.
        !          4147:        (write_units): Add blockage_function, blockage_range_function,
        !          4148:        max_blockage and max_issue_delay fields to struct function_unit_desc.
        !          4149:        Drop max_busy_cost field.  Write #defines for min/max blockage,
        !          4150:        issue delay, multiplicity, and simultaneity and for BLOCKAGE_BITS
        !          4151:        and INSN_QUEUE_SIZE.
        !          4152:        (main): Compute the new values.
        !          4153:        * sched.c (insn_queue): Use INSN_QUEUE_SIZE.
        !          4154:        * rtl.def (define_function_unit): Update documentation.
        !          4155: 
        !          4156:        * sched.c (insn_units, insn_blockage, insn_tick, unit_last_insn,
        !          4157:        unit_tick, unit_n_insns): New variables.
        !          4158:        (schedule_insns): Allocate and initialize insn_tick, insn_units, and
        !          4159:        insn_blockage.
        !          4160:        (insn_unit, blockage_range, clear_units, prepare_unit, schedule_unit,
        !          4161:        actual_hazard_this_instance, actual_hazard, potential_hazard,
        !          4162:        schedule_select): New functions.
        !          4163:        (schedule_block): Add dependencies to force insns to remain in order
        !          4164:        at the end of a block rather than relying on having the scheduler
        !          4165:        issue them in priority order. 
        !          4166: 
        !          4167:        * sched.c (insn_cost): Add LINK and USED parameters.  All callers
        !          4168:        changed.  Supply an ADJUST_COST interface.
        !          4169:        (insn_cost): Make a dependence from a USE insn free.
        !          4170:        (priority): Clear the link cost adjustment bits.
        !          4171:        * rtl.h (LINK_COST_ZERO, LINK_COST_FREE): New macros.
        !          4172: 
        !          4173:        * genattrtab.c (expand_units): Use the normalized values of the
        !          4174:        unit's CONDEXP and BUSYEXP.
        !          4175: 
        !          4176:        * a29k.md (define_function_unit): Change meaning to ISSUE-DELAY.
        !          4177:        * i960.md (define_function_unit): Change meaning to ISSUE-DELAY.
        !          4178:        * m88k.md (type attribute, movdi movdf insns): Add loadd.
        !          4179:        (unit attribute): Delete.
        !          4180:        (function units): Correct simultaneity values.  Break out
        !          4181:        independent units.  Add conflict matrix for the 88100 load double.
        !          4182:        * mips.md (define_function_unit): Change meaning to ISSUE-DELAY.
        !          4183:        * pa.md (define_function_unit): Change meaning to ISSUE-DELAY.
        !          4184:        * sparc.md (define_function_unit): Change meaning to ISSUE-DELAY.
        !          4185:        Merge FP_MUL, FP_DIV, and FP_SQRT into one function unit.
        !          4186: 
        !          4187:        * jump.c (delete_computation): Derived from delete_jump.
        !          4188:        (delete_jump): Use delete_computation.
        !          4189: 
        !          4190: Tue Aug 25 13:42:19 1992  Richard Stallman  ([email protected])
        !          4191: 
        !          4192:        * final.c (final_scan_insn): If 2 consec line notes have same line num,
        !          4193:        can omit one.
        !          4194: 
        !          4195: Tue Aug 25 13:38:19 1992  Michael Meissner  ([email protected])
        !          4196: 
        !          4197:        * mips.h (MIPS_VERSION): Set Meissner version # to 24.
        !          4198:        (ASM_FINAL_SPEC): Use %U to get the last file name created with
        !          4199:        %u, rather than %u.
        !          4200:        (ARG_POINTER_REGNUM): Use the hardwired register $0 as the
        !          4201:        argument pointer, instead of the frame pointer, to allow the frame
        !          4202:        pointer to be the same as the stack pointer after the initial
        !          4203:        stack allocations.  This is to allow GCC generated code to be
        !          4204:        linked against MIPS shared libraries.  The linker rearranges the
        !          4205:        code, and needs to have a frame pointer, if used, to be the same
        !          4206:        as the stack.  The argument pointer is always eliminated in favor
        !          4207:        of the stack pointer or frame pointer.
        !          4208:        (FRAME_GROWS_DOWNWARD): Don't define this any more.
        !          4209:        (STARTING_FRAME_OFFSET): Locals start after the stack area to pass
        !          4210:        arguments to called functions.
        !          4211:        (STACK_DYNAMIC_OFFSET): If function is a leaf function, but calls
        !          4212:        __builtin_alloca, assume a default argument area, so the MIPS
        !          4213:        linker doesn't think a second frame pointer is created.
        !          4214:        (INITIAL_FRAME_POINTER_OFFSET): Don't define, since we use
        !          4215:        elimination instead.
        !          4216:        (ELIMINABLE_REGS): Define to eliminate both the stack pointer and
        !          4217:        frame pointer, since they are now separate.
        !          4218:        (CAN_ELIMINATE): Ditto.
        !          4219:        (INITIAL_ELIMINATION_OFFSET): Ditto.
        !          4220:        (ELIGIBLE_FOR_EPILOGUE_DELAY): Don't allow variables based off of
        !          4221:        the argument pointer, in addition to frame and stack pointers.
        !          4222:        (MUST_SAVE_REGISTER): Add in GP_REG_FIRST to 31, in case we ever
        !          4223:        change the base of the gp registers.
        !          4224:        (MIPS_STACK_ALIGN): Use ~7, instead of 0xfffffff8.
        !          4225: 
        !          4226:        * mips.c (number_functions_processed): Delete variable, nobody
        !          4227:        uses it anymore.
        !          4228:        (mips_debugger_offset): Add support for the frame pointer being
        !          4229:        the same as the stack pointer, instead of being the same as the
        !          4230:        argument pointer.  Abort if the address is not based on any of the
        !          4231:        stack, frame, or argument pointers.
        !          4232:        (print_operand_address): Add checks for the arg pointer not being
        !          4233:        eliminated.
        !          4234:        (function_prologue): Ditto.
        !          4235:        (mips_expand_prologue): Ditto.
        !          4236:        (function_epilogue): Ditto.
        !          4237:        (mips_expand_epilogue): Ditto.
        !          4238:        (function_epilogue): Strip leading '*' if it exists from
        !          4239:        current_function_name when printing statistics.  Delete increment
        !          4240:        of number_functions_processed.
        !          4241:        (compute_frame_size): Don't base extra_size on the macro
        !          4242:        STARTING_FRAME_OFFSET.  If function is a leaf function, but calls
        !          4243:        __builtin_alloca, allocate an arg area, so that the MIPS linker
        !          4244:        will not complain about creating a second frame pointer.  Move the
        !          4245:        argument save area beneath local variables.
        !          4246: 
        !          4247:        * decrose.h (ASM_FINAL_SPEC): Use %U to get the last file name
        !          4248:        created with %u, rather than %u.
        !          4249: 
        !          4250:        * gcc.c (do_spec_1): Add %U to return the last name generated with
        !          4251:        %u.  This is for use with mips-tfile, to find the generated object
        !          4252:        file.
        !          4253: 
        !          4254: 
        !          4255: Mon Aug 24 18:09:34 1992  Richard Stallman  ([email protected])
        !          4256: 
        !          4257:        * c-typeck.c (build_unary_op): For ADDR_EXPR, just set TREE_CONSTANT
        !          4258:        if staticp, but don't clear TREE_CONSTANT.
        !          4259: 
        !          4260: Mon Aug 24 13:52:13 1992  Brendan Kehoe  ([email protected])
        !          4261: 
        !          4262:        * gcc.c (process_command): Don't set verbose_flag if they make a
        !          4263:        typo (e.g., `-v-E'); only when it's exactly "-v".
        !          4264: 
        !          4265: Mon Aug 24 06:49:16 1992  Richard Kenner  ([email protected])
        !          4266: 
        !          4267:        * combine.c (subst): When moving operation inside IF_THEN_ELSE,
        !          4268:        make a new rtx instead of using SUBST due to sharing.
        !          4269: 
        !          4270:        * combine.c (simplify_comparison): Correct test for sign extension
        !          4271:        when trying to widen comparison.
        !          4272: 
        !          4273: Sun Aug 23 18:58:33 1992  Richard Stallman  ([email protected])
        !          4274: 
        !          4275:        * fold-const.c (fold): Avoid the normal STRIP_NOPS on arg of NOP_EXPR.
        !          4276: 
        !          4277: Sun Aug 23 15:32:03 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          4278: 
        !          4279:        * stmt.c (expand_end_bindings):  Generation of NOTE_INSN_BLOCK_END
        !          4280:        moved down so that it occurs after call to `expand_cleanups'.
        !          4281: 
        !          4282: Sun Aug 23 16:24:32 1992  Michael Meissner  ([email protected])
        !          4283: 
        !          4284:        * decrose.h (CPP_SPEC): Don't define strcmp as __builtin_strcmp in
        !          4285:        the case neither -fbuiltin nor -fno-builtin were defined.
        !          4286:        * i386rose.h (CPP_SPEC): Ditto.
        !          4287: 
        !          4288: Sun Aug 23 02:03:41 1992  Richard Stallman  ([email protected])
        !          4289: 
        !          4290:        * libgcc2.c (__builtin_new): Cast the result of malloc.
        !          4291: 
        !          4292:        * toplev.c: Fix typo in prev change.
        !          4293: 
        !          4294:        * c-decl.c (insert_block, delete_block): New functions.
        !          4295:        * c-parse.y (primary, using compstmt): Call delete_block
        !          4296:        instead of clearing TREE_USED.
        !          4297:        * expr.c (expand_expr): For BIND_EXPR, call insert_block on the block.
        !          4298:        
        !          4299: Sat Aug 22 14:12:02 1992  Richard Stallman  ([email protected])
        !          4300: 
        !          4301:        * configure: Use absolute pathname in value of INSTALL.
        !          4302: 
        !          4303: Sat Aug 22 06:42:39 1992  Tom Wood  ([email protected])
        !          4304: 
        !          4305:        * emit-rtl.c (insn_emit_once): Provide a zero constant for CC modes.
        !          4306: 
        !          4307: Fri Aug 21 18:33:30 1992  Jeffrey A. Law  ([email protected])
        !          4308: 
        !          4309:        * reorg.c (fill_simple_delay_slots): Always try to fill empty
        !          4310:        delay slots with insns from beyond the delay insn, even if
        !          4311:        optimize_skip was attempted.
        !          4312:        (fill_simple_delay_slots): When filling with insns from after the
        !          4313:        delay insn, make sure to always account for the sets and
        !          4314:        references in the delay insn.
        !          4315: 
        !          4316: Fri Aug 21 16:47:06 1992  Richard Stallman  ([email protected])
        !          4317: 
        !          4318:        * sparc.c (print_operand): Use output_operand_error for unknown code.
        !          4319: 
        !          4320:        * c-typeck.c (build_conditional_expr): Use TREE_READONLY and
        !          4321:        TREE_THIS_VOLATILE, not TYPE_...
        !          4322: 
        !          4323: Fri Aug 21 14:02:20 1992  James Van Artsdalen  (james at bigtex.cactus.org)
        !          4324: 
        !          4325:        * reload.c (find_dummy_reload): Restore original RTX instead of
        !          4326:        passed IN rtx.
        !          4327: 
        !          4328: Fri Aug 21 07:53:12 1992  Richard Kenner  ([email protected])
        !          4329: 
        !          4330:        * optabs.c (expand_binop): If, e.g., mulqi3 doesn't exist, try
        !          4331:        mulqihi3.
        !          4332: 
        !          4333:        * rs6000.h (FUNCTION_ARG): Don't make an EXPR_LIST if making a libcall.
        !          4334: 
        !          4335:        * combine.c (subst): Move up test for too many restarts.
        !          4336:        If we restart, clear OP0_MODE since we don't know it.
        !          4337: 
        !          4338: Fri Aug 21 02:11:43 1992  Richard Stallman  ([email protected])
        !          4339: 
        !          4340:        * emit-rtl.c (emit_insns_after): New function.
        !          4341: 
        !          4342: Fri Aug 21 01:53:04 1992  Jeffrey A. Law  ([email protected])
        !          4343: 
        !          4344:        * pa.md (call_value+1): For non-dynamic calls, use the "call"
        !          4345:        attribute, set length to 1, and fix output template to work
        !          4346:        properly with delay slots.
        !          4347: 
        !          4348:        * pa.md (address and use_call_clobbered attributes): Deleted,
        !          4349:        these attributes are useless.  All references deleted.
        !          4350:        (call define delay): Use "in_branch_delay" as the condition since
        !          4351:        "call" delay slots and unconditional "branch" delay slots allow the
        !          4352:        same type of insns. 
        !          4353:        (in_call_delay conditional): Deleted.
        !          4354:        (branch define delay): Do not define an annul-if-true delay slot.
        !          4355:        It is useless for an unconditional branch.
        !          4356:        (all delay branch conditionals): Make sure "call", "dyncall", "multi",
        !          4357:        and "milli" insns are explicitly disallowed in delay slots.
        !          4358: 
        !          4359:        * pa.c (output_mul_insn): Delete nop after branch in template,
        !          4360:        conditionally emit a nop if the delay slot was not filled. (via %#)
        !          4361: 
        !          4362:        * pa.c (output_function_prologue): Handle profiling in a function
        !          4363:        without a frame pointer.
        !          4364: 
        !          4365: Thu Aug 20 16:16:40 1992  Tom Wood  ([email protected])
        !          4366: 
        !          4367:        * va-m88k.h (__INT_VARARGS_H): Define this to avoid trouble on DG/UX.
        !          4368: 
        !          4369: Thu Aug 20 11:07:26 1992  Michael Meissner  ([email protected])
        !          4370: 
        !          4371:        * final.c: Move include of stdio.h before output.h.
        !          4372: 
        !          4373: Thu Aug 20 01:08:55 1992  Pat Rankin  (rankin at eql.caltech.edu)
        !          4374: 
        !          4375:        Support for bootstrapping cpp & cc1 with VAX C under VMS.
        !          4376: 
        !          4377:        * xm-vax-vms.h (USE_C_ALLOCA,NO_STAB_H): Define for VAXC.
        !          4378:        (bcopy,bzero,bcmp,index,rindex): Define as ANSI/SYSV counterparts.
        !          4379:        (QSORT_WORKAROUND, qsort): New macros, for avoiding buggy
        !          4380:        qsort in VAXCRTL library.
        !          4381:        (check_for_full_enumeration_handling,...): Use macros to shorten
        !          4382:        several external names which are longer than 31 characters to
        !          4383:        avoid warnings about truncation.
        !          4384:        (unlink): Remove redundant definition.
        !          4385:        * vax.c (not_qsort): New function.
        !          4386:        * cccp.c (toplevel: create_definition): Move forward declaration
        !          4387:        past the definition of struct macrodef.
        !          4388:        (strncat): New function.
        !          4389:        (bcopy, bzero, bcmp): Remove #if VMS code--always use inline C loops.
        !          4390:        * genrecog.c, reload1.c: Compare enums (preds. codes, mem_mode)
        !          4391:        explicitly to 0 in conditionals to work-around a VAXC bug that
        !          4392:        disallows enum as arguments to && and || operators.
        !          4393:        * getpwd.c (getpwd): Add alternative defn for VMS.
        !          4394:        * toplev.c (environ): Make declaration conditional.
        !          4395:        (main: -g debugging setup): Get rid of \ in #if condition.
        !          4396:        * make-cccp.com,make-cc1.com (CC,CFLAGS,LIBS): Add commented command
        !          4397:        variants for bootstrapping gcc-cpp and gcc-cc1 with VAXC.
        !          4398:        * make-cccp.com (alloca): Build alloca.obj from alloca.c if LIBS needs it.
        !          4399: 
        !          4400:        Not yet installed:
        !          4401: 
        !          4402:        * machmode.h (FILE_TYPE): For VMS, make sure FILE_TYPE is not
        !          4403:        defined as a macro, so that VAXC's <stdio.h> won't break tree.h.
        !          4404:        * genemit.c (gen_exp): #if VAXC, output a newline in front of
        !          4405:        gen_rtx calls, to prevent excessively long lines in insn-emit.c.
        !          4406: 
        !          4407: Thu Aug 20 11:32:18 1992  Michael Tiemann  ([email protected])
        !          4408: 
        !          4409:        * cp-tree.h: Fix incorrect comment about "$this" needing to
        !          4410:        be lexicographically less than any other identifier.
        !          4411: 
        !          4412: Thu Aug 20 05:37:00 1992  Richard Kenner  ([email protected])
        !          4413: 
        !          4414:        * a29k.md (load_multiple): Operand 2 should be a MATCH_OPERAND.
        !          4415:        (store_multiple_{,no_}bug): Likewise.
        !          4416: 
        !          4417:        * reorg.c (mark_set_resources): Fix two bugs in last change.
        !          4418: 
        !          4419:        * expr.c (init_expr_once): Set direct_load and direct_store if SOME
        !          4420:        hard register can be loaded or stored; not just if the first one
        !          4421:        we pick can be.
        !          4422: 
        !          4423: Thu Aug 20 01:40:43 1992  Richard Stallman  ([email protected])
        !          4424: 
        !          4425:        * combine.c, emit-rtl.c, final.c, gcc.c, genattrtab.c, mips-tfile.c:
        !          4426:        Put include of stdio.h after GCC header files
        !          4427:        (for i860-stardent-sysv4).
        !          4428:        * tree.c: Likewise.
        !          4429: 
        !          4430:        * fixincludes (stdio.h): Rename va_list to __va_list__ to coexist
        !          4431:        with gvarargs.h.
        !          4432: 
        !          4433: Wed Aug 19 21:06:49 1992  Jim Wilson  ([email protected])
        !          4434: 
        !          4435:        * cccp.c (finclude): Increment indepth before calling
        !          4436:        trigraph_pcp, so that warning uses the correct file name.
        !          4437: 
        !          4438: Wed Aug 19 07:07:41 1992  Richard Kenner  ([email protected])
        !          4439: 
        !          4440:        * combine.c (force_to_mode): Add missing test of and_optab.
        !          4441: 
        !          4442:        * genconfig.c (have_cmove_flag): New variable.
        !          4443:        (walk_insn_part): Add new parm NON_PC_SET_SRC; all callers change.
        !          4444:        Look for IF_THEN_ELSE in a SET_SRC that isn't setting PC and
        !          4445:        set have_cmove_flag if so.
        !          4446:        (main): Define HAVE_conditional_move if have_cmove_flag is non-zero.
        !          4447:        * combine.c (subst, case AND): Only make IF_THEN_ELSE if conditional
        !          4448:        moves exist.
        !          4449: 
        !          4450:        * cse.c (find_comparison_args): Look for comparison operations
        !          4451:        if the second arg is 0 in any mode.
        !          4452:        (record_jump_cond): Don't make classes equivalent for floating-point
        !          4453:        equality comparison.
        !          4454: 
        !          4455:        * local-alloc.c (alloc_qty_for_scratch, block_alloc): Provide
        !          4456:        alternate code in some cases when REGISTER_CONSTRAINTS is not
        !          4457:        defined.
        !          4458:        (requires_inout_p): Only used when REGISTER_CONSTRAINTS is defined.
        !          4459: 
        !          4460:        * reorg.c (mark_set_resources): Add new parm IN_DEST; add callers
        !          4461:        changed.
        !          4462:        Rework to scan an entire insn to look for auto-inc operations.
        !          4463: 
        !          4464:        * unroll.c (copy_loop_body): Add missing declaration of EXIT_LABEL
        !          4465:        parameter.
        !          4466: 
        !          4467:        * function.c (instantiate_decl): New function.
        !          4468:        (instantiate_decls{,_1}): Call it.
        !          4469: 
        !          4470:        * combine.c (simplify_comparison): Add a few more cases where we can
        !          4471:        do the comparison in a wider mode.
        !          4472: 
        !          4473:        * combine.c (distribute_notes, REG_EQUAL): Don't put back a note
        !          4474:        with a non-constant expression since it may no longer be valid.
        !          4475: 
        !          4476: Tue Aug 18 23:07:33 1992  Mike Stump  ([email protected])
        !          4477: 
        !          4478:        * expr.c (expand_expr): The first expansion of a TARGET_EXPR
        !          4479:        is marked by DECL_RTL (slot) being filled in AND TREE_OPERAND
        !          4480:        (exp, 1) being wiped-out with a NULL_TREE, not just the
        !          4481:        DECL_RTL (slot) being filled in.
        !          4482: 
        !          4483: Tue Aug 18 00:07:23 1992  Dennis P. Glatting  ([email protected])
        !          4484: 
        !          4485:        * objc-actions.c
        !          4486:        (build_selector_translation_table): NULL-terminate the
        !          4487:        selector list.  Mark _OBJC_SELECTOR_REFERENCES_decl as static,
        !          4488:        not extern.
        !          4489: 
        !          4490: Tue Aug 18 21:38:46 1992  Mike Stump  (mrs@hal)
        !          4491: 
        !          4492:        * xcoffout.c (assign_type_number):  Skip decls with no name.
        !          4493: 
        !          4494:        * expr.c (expand_expr): When expanding TARGET_EXPRs, make sure
        !          4495:        that they are only expanded once, after the first expansion,
        !          4496:        the rtl can be used without further expansions.
        !          4497: 
        !          4498: Tue Aug 18 12:58:33 1992  Richard Stallman  ([email protected])
        !          4499: 
        !          4500:        * x-i386sco (X_CFLAGS): Defined.
        !          4501: 
        !          4502:        * stmt.c (expand_return): Call emit_queue in ignore-the-value case.
        !          4503:        (expand_end_bindings): Check DECL_IN_SYSTEM_HEADER for unused warnings.
        !          4504: 
        !          4505:        * combine.c (simplify_comparison):
        !          4506:        Rearrange conditional in SUBREG case.
        !          4507: 
        !          4508: Tue Aug 18 06:49:43 1992  Tom Wood  ([email protected])
        !          4509: 
        !          4510:        * cccp.c (HOST_WIDE_INT): Copy definition from machmode.h.
        !          4511:     
        !          4512:        * c-typeck.c (parser_build_binary_op): Replace the assignment of CLASS.
        !          4513: 
        !          4514:        * configure (Makefile edits): Make the edits independent.
        !          4515:        * Makefile.in (sed marker): Use the order {target, host, cross-make}.
        !          4516: 
        !          4517: Tue Aug 18 00:15:12 1992  Richard Stallman  ([email protected])
        !          4518: 
        !          4519:        * c-typeck.c (parser_build_binary_op):
        !          4520:        For Z<Y<Z warning, test class of CODE; don't use TREE_CODE (result).
        !          4521: 
        !          4522:        * cccp.c (pcfinclude): Use HOST_WIDE_INT for rounding a pointer.
        !          4523: 
        !          4524: Mon Aug 17 14:57:18 1992  Richard Stallman  ([email protected])
        !          4525: 
        !          4526:        * c-typeck.c (digest_init): Test TREE_TYPE (inside_init) is
        !          4527:        nonzero before testing anything else about it.
        !          4528: 
        !          4529:        * i860.md (mulsi3): Use emit_insn on results of gen fcns.
        !          4530:        Return with DONE.
        !          4531: 
        !          4532: Mon Aug 17 11:50:23 1992  Mark Eichin  ([email protected])
        !          4533: 
        !          4534:        * cccp.c (do_include): If search_start is NULL, complain that
        !          4535:        we had nowhere to look.
        !          4536: 
        !          4537: Mon Aug 17 14:53:46 1992  Jim Wilson  ([email protected])
        !          4538: 
        !          4539:        * function.c (assign_parms):  When copy arg passed by invisible
        !          4540:        reference to pseudo reg, don't use nominal_mode.
        !          4541: 
        !          4542:        * i960.c (i960_address_cost): Don't abort for invalid addresses.
        !          4543: 
        !          4544: Mon Aug 17 14:29:33 1992  Richard Stallman  ([email protected])
        !          4545: 
        !          4546:        * c-typeck.c (digest_init):
        !          4547:        Use TYPE_MAIN_VARIANT comparing type of inside_init.
        !          4548: 
        !          4549: Mon Aug 17 10:32:08 1992  Michael Meissner  ([email protected])
        !          4550: 
        !          4551:        * genattrtab.c (simplfy_with_current_value): Return 'exp' to
        !          4552:        caller instead of random value.
        !          4553:        (convert_set_attr_alternative): Delete unused variable newexp.
        !          4554:        (simplify_cond): Delete unused variable spacer.
        !          4555:        (make_alternative_compare): Delete unused variable alternative.
        !          4556:        (optimize_attr): Delete unused variable nextie.
        !          4557:        (main): Delete unused variable av.
        !          4558:        (simplify_by_alternatives): #if 0, since the only caller is also
        !          4559:        #ifdef'ed away.
        !          4560:        (copy_rtx_unchanging): #if 0 variables that are only used inside
        !          4561:        of other code under #if 0.
        !          4562: 
        !          4563: Mon Aug 17 07:37:41 1992  Richard Kenner  ([email protected])
        !          4564: 
        !          4565:        * a29kunix.h (LINK_SPEC): Add %s for default.ld.
        !          4566:        (LINK_LIBGCC_SPECIAL): No longer needed.
        !          4567:        (ASM_FILE_STARY): Add shared data section.
        !          4568:        (SHARED_SECTION_ASM_OP): New macro.
        !          4569:        (OVERRIDE_OPTIONS): If -fshared-data, add -fno-common.
        !          4570: 
        !          4571:        * alpha.c (alpha_function_needs_gp): New variable.
        !          4572:        (output_prolog): Set it.
        !          4573:        Write label after LDGP if function has recursive call and needs GP.
        !          4574:        (current_function_operand, divmod_operator, alpha_gp_dead_after):
        !          4575:        New functions.
        !          4576:        (print_operand, case 'E', 'F'): New cases.
        !          4577:        (alpha_need_gp): Just test for type of LDSYM, not CALL_INSN.
        !          4578:        * alpha.h (GO_IF_LEGITIMATE_ADDRESS): Allow a SYMBOL_REF for
        !          4579:        the current function as a valid address.
        !          4580:        * alpha.md (divXi3, udivXi3, modXi3, umodXi3): New patterns.
        !          4581:        (cmov): Add pattern for addq/cmov for signed divide by power of 2.
        !          4582:        (call): Omit GP restore if it is dead.
        !          4583:        Add patterns for recursive calls.
        !          4584:        (branch): Change type of everything but calls to IBR.
        !          4585:        (unaligned_storehi): Fix numbering of operands.
        !          4586:        * xm-alpha.h (malloc, realloc, sbrk): Declare as void * if __STDC__.
        !          4587: 
        !          4588:        * libgcc2.c (builtin_new): Remove declaration of malloc.
        !          4589: 
        !          4590:        * expmed.c (expand_mult): Bound second synth_mult cost by cost of
        !          4591:        algorithm from first call.
        !          4592: 
        !          4593:        * expmed.c (expand_divmod): When doing logical operations, the size
        !          4594:        of COMPUTE_MODE should be used, not MODE.
        !          4595: 
        !          4596:        * combine.c (struct undo, struct undo_int): Replace non-portable
        !          4597:        usage with some unions.
        !          4598:        (SUBST, SUBST_INT, undo_all, gen_rtx_combine): Make consistent
        !          4599:        with new definitions.
        !          4600: 
        !          4601:        * fold-const.c (fold): Move conversion back outside of COND_EXPR
        !          4602:        if moving it inside didn't help anything.
        !          4603: 
        !          4604:        * fold-const.c (div_and_round_double): Change some more ints
        !          4605:        to HOST_WIDE_INTs.
        !          4606: 
        !          4607:        * jump.c (jump_optimize): Allow SUBREG in many places where REG
        !          4608:        is allowed.
        !          4609: 
        !          4610:        * expr.c (expand_expr, case COMPONENT_REF): Don't actually do
        !          4611:        extraction from memory if we want address.
        !          4612: 
        !          4613:        * expr.c (emit_block_move): Fix problems in last change.
        !          4614: 
        !          4615: Mon Aug 17 03:37:10 1992  Richard Stallman  ([email protected])
        !          4616: 
        !          4617:        * collect2.c (is_ctor_dtor): Don't collect cfront init fcns.
        !          4618: 
        !          4619:        * Makefile.in (GCC_FOR_TARGET): Put -B./ here.
        !          4620:        (GCC_CFLAGS): Not here.
        !          4621: 
        !          4622: Sun Aug 16 10:38:10 1992  Torbjorn Granlund  ([email protected])
        !          4623: 
        !          4624:        * ns32k.c (print_operand_address): Fix typo.
        !          4625: 
        !          4626: Sat Aug 15 20:23:39 1992  Richard Stallman  ([email protected])
        !          4627: 
        !          4628:        * cccp.c (PTR_INT_TYPE): Don't define this.
        !          4629:        (pcfinclude): Use int, not PTR_INT_TYPE.
        !          4630: 
        !          4631: Sat Aug 15 11:10:07 1992  Michael Meissner  ([email protected])
        !          4632: 
        !          4633:        * mips.h (ASM_FINAL_SPEC): For output of as when -c is not used, use
        !          4634:        %u rather than %g so each object filename will be unique.
        !          4635:        * decrose.h (ASM_FINAL_SPEC): Ditto.
        !          4636: 
        !          4637:        * x-decrose (CLIB, X_CFLAGS): Don't link in libbsd.a, instead use
        !          4638:        -Dvfork=fork on the command line.
        !          4639:        * x-encrose (CLIB, X_CFLAGS): Ditto.
        !          4640:        * x-i386rose (CLIB, X_CFLAGS): Ditto.
        !          4641: 
        !          4642: Sat Aug 15 06:36:15 1992  Richard Kenner  ([email protected])
        !          4643: 
        !          4644:        * cccp.c: Remove declaration of malloc and realloc.
        !          4645: 
        !          4646:        * combine.c (get_last_value): Don't go past a CODE_LABEL when
        !          4647:        searching for a value.
        !          4648: 
        !          4649:        * expr.c (convert_move): Copy SUBREG to REG in one more case.
        !          4650: 
        !          4651:        * expr.c (do_jump*): Always do comparison in object's signedness
        !          4652:        now that combine can remove extraneous sign extends.
        !          4653: 
        !          4654: Sat Aug 15 00:52:08 1992  Richard Stallman  ([email protected])
        !          4655: 
        !          4656:        * fixincludes (ansi_compat.h): Replace this with an empty file.
        !          4657: 
        !          4658:        * gcc.c (process_command): In second loop over all switches,
        !          4659:        don't increment I for switches that don't have separate arguments.
        !          4660: 
        !          4661:        * cccp.c: Don't ever include stddef.h.
        !          4662:        (append_include_chain): Avoid using size_t.
        !          4663:        (initialize_builtins): Output defn of __WCHAR_TYPE__ just once.
        !          4664: 
        !          4665:        * ns32k.md (movstrsi1): Renamed from movstrsi.
        !          4666:        (movstrsi): New define_expand.
        !          4667: 
        !          4668: Fri Aug 14 18:51:57 1992  Jim Wilson  ([email protected])
        !          4669: 
        !          4670:        * sched.c (attach_deaths_insn): Don't call attach_deaths for CLOBBERs.
        !          4671: 
        !          4672: Fri Aug 14 18:47:22 1992  Tom Wood  ([email protected])
        !          4673: 
        !          4674:        * genattr.c (write_units): Write #defines for the number of
        !          4675:        function units, the min/max ready cost and min/max busy delay.
        !          4676:        Add max_busy_cost field to struct function_unit_desc.
        !          4677: 
        !          4678:        * genattrtab.c (simplify_by_exploding, find_and_mark_used_attributes,
        !          4679:        unmark_used_attributes, add_values_to_cover, increment_current_value, 
        !          4680:        test_for_current_value, simplify_with_current_value,
        !          4681:        simplify_with_current_value_aux): New functions.
        !          4682:        (struct function_unit): Add max_busy_cost, {min,max}_busy_delay.
        !          4683:        (expand_units): Use simplify_by_exploding to simplify the
        !          4684:        function_units_used attribute.  Compute the ready cost attributes
        !          4685:        as a COND in numeric order.
        !          4686:        (gen_unit): Compute {min,max}_ready_cost and {min,max}_busy_delay.
        !          4687:        (write_function_unit_info): Determine if there is only one busy
        !          4688:        delay value by comparing the minimum and maximum busy delay.
        !          4689:        Write the initializer for function_units in numeric order.
        !          4690:        Write out the maximum busy delay field.
        !          4691: 
        !          4692:        * genattrtab.c (attr_desc): Add negative_ok field.
        !          4693:        (find_attr, make_internal_attr): Initialize negative_ok.
        !          4694:        (check_attr_value): Allow negative values for CONST_STRING for
        !          4695:        numeric attributes with negative_ok.
        !          4696:        (encode_units_mask): Change the encoding of the function_units_used
        !          4697:        result.
        !          4698: 
        !          4699:        * gcc.c (do_spec_1): Add %u.
        !          4700:        (default_compilers): For output of as when -c is not used, use %u
        !          4701:        rather than %g so each object filename will be unique.
        !          4702: 
        !          4703:        * cexp.y, cccp.c, gcc.c (NULL_PTR): Use the same definition as
        !          4704:        rtl.h and tree.h.
        !          4705: 
        !          4706: Fri Aug 14 20:53:00 1992  Paul Eggert  ([email protected])
        !          4707: 
        !          4708:        * c-decl.c (grokdeclarator): Remove duplicate diagnostic for
        !          4709:        initialized parameters; start_decl already does this.
        !          4710: 
        !          4711:        * c-common.c (truthvalue_conversion): Optionally warn if an
        !          4712:        unparenthesized assignment is used as a truth value.
        !          4713:        * c-parse.y, objc-parse.y (expr_no_commas):
        !          4714:        Mark assignments for warning.
        !          4715: 
        !          4716: Fri Aug 14 14:45:39 1992  Richard Stallman  ([email protected])
        !          4717: 
        !          4718:        * vax.md (casesi1): Renamed from casesi.
        !          4719:        (casesi): New trivial define_expand invokes casesi1.
        !          4720:        (movstrhi, movstrhi1): Analogous change.
        !          4721: 
        !          4722: Fri Aug 14 14:36:52 1992  Tom Wood  ([email protected])
        !          4723: 
        !          4724:        * reload.c (find_reloads): Ignore `%' in the last operand after
        !          4725:        warning.
        !          4726: 
        !          4727: Fri Aug 14 07:41:34 1992  Richard Kenner  ([email protected])
        !          4728: 
        !          4729:        * genflags.c (num_operands): MATCH_PARALLEL also represents an operand.
        !          4730: 
        !          4731:        * jump.c (invert_exp, redirect_exp): No longer static.
        !          4732:        Clean up order of declarations at start of file and remove
        !          4733:        extraneous decls.
        !          4734:        * unroll.c (copy_loop_body): Don't assume (pc) can be on either
        !          4735:        leg of jump; use invert_exp and redirect_exp instead.
        !          4736: 
        !          4737:        * alpha.c, alpha.h, alpha.md, xm-alpha.h, x-alpha, va-alpha.h:
        !          4738:        New files.
        !          4739:        * config.sub: Add "alpha".
        !          4740:        * configure: Likewise.
        !          4741:        * Makefile.in (USER_H): Add va-alpha.h and sort names.
        !          4742:        * gstdarg.h, gvarargs.h: Call va-alpha.h for Alpha.
        !          4743: 
        !          4744:        * rtl.def (MATCH_PAR_DUP): New RTL code.
        !          4745:        * genconfig.c (walk_insn_part): Treat it just like MATCH_OP_DUP.
        !          4746:        * genemit.c (max_operand_1): Likewise.
        !          4747:        (gen_exp): Treat it like MATCH_PARALLEL here.
        !          4748:        * genextract.c (walk_rtx): Treat it like MATCH_DUP.
        !          4749:        * genoutput (scan_operands): Likewise.
        !          4750:        * genpeep.c (match_rtx): Likewise.
        !          4751:        * genrecog.c (add_to_sequence): Likewise.
        !          4752:        * a29k.md, rs6000.md ({load,store}_multiple): Use MATCH_PAR_DUP.
        !          4753: 
        !          4754:        * cse.c (fold_rtx): Fix typo in two FLOAT_STORE_FLAG_VALUE tests.
        !          4755: 
        !          4756:        * flow.c (life_analysis, propagate_block, dump_flow_info): Add more
        !          4757:        missing casts to REGSET_ELT_TYPE.
        !          4758: 
        !          4759:        * expr.c (movstr_optab): New variable.
        !          4760:        (init_expr_once): Initialize it.
        !          4761:        (emit_block_move): Rework code that generates movstrxx insns to
        !          4762:        check predicates and use an optab.
        !          4763: 
        !          4764:        * cse.c (simplify_unary_operation): Remove "else".
        !          4765: 
        !          4766: Fri Aug 14 07:41:05 1992  Torbjorn Granlund  ([email protected])
        !          4767: 
        !          4768:        * c-decl.c, cse.c, fold-const.c, integrate.c, obstack.h, protoize.c,
        !          4769:        reload1.c, stmt.c, tree.c, tree.h: Phicks speling erours.
        !          4770: 
        !          4771: Fri Aug 14 03:21:17 1992  Richard Stallman  ([email protected])
        !          4772: 
        !          4773:        * c-convert.c (convert): When converting to variant of same type, fold.
        !          4774: 
        !          4775:        * varasm.c (assemble_variable): Change error message for unknown size.
        !          4776: 
        !          4777:        * c-parse.y (declmods): Don't warn for multiple storage classes
        !          4778:        all at the beginning.  This is either good practice or an error.
        !          4779: 
        !          4780: Thu Aug 13 19:43:13 1992  Paul Eggert  ([email protected])
        !          4781: 
        !          4782:        * c-decl.c (finish_decl): Avoid cascading messages for tentative
        !          4783:        definitions with incomplete types.
        !          4784: 
        !          4785:        * c-typeck.c (process_init_constructor): Warn about partly
        !          4786:        bracketed initializers.
        !          4787: 
        !          4788: Thu Aug 13 17:18:49 1992  Richard Stallman  ([email protected])
        !          4789: 
        !          4790:        * cccp.c (handle_directive): Output macro name if dump_names.
        !          4791: 
        !          4792:        * m68k.h: Delete junk line inserted by mistake in last patch.
        !          4793: 
        !          4794: Thu Aug 13 16:46:58 1992  Tom Wood  ([email protected])
        !          4795: 
        !          4796:        * regclass.c (regclass): Don't scan the constraints if there aren't
        !          4797:        any operands.  Don't look for a commutative constraint in the last
        !          4798:        operand.
        !          4799: 
        !          4800:        * function.c (contains): Return the number of insns.
        !          4801:        (reposition_prologue_and_epilogue_notes): Count all the prologue and
        !          4802:        epilogue insns.
        !          4803: 
        !          4804: Thu Aug 13 15:20:24 1992  Jim Wilson  ([email protected])
        !          4805: 
        !          4806:        * m68k.h (TARGET_SWITCHES): Make -m68040 set 01007 not 01000.
        !          4807: 
        !          4808:        * sparc.h (CPP_SPEC): For -mv8, define __sparc_v8__ not __sparcv8__.
        !          4809:        * longlong.h (__sparclite__): Define umul_ppmm, udiv_qrnnd, and
        !          4810:        count_leading_zeros for this sparc architecture variant.
        !          4811:        (__sparc_v8__): Changed from __sparc8__.
        !          4812: 
        !          4813:        * c-typeck.c (build_component_ref): Don't warn for compound and
        !          4814:        conditional expressions when pedantic.  These are valid in ANSI C.
        !          4815: 
        !          4816: Thu Aug 13 11:37:57 1992  Jeffrey A. Law  ([email protected])
        !          4817: 
        !          4818:        * pa.c (output_function_prologue): Restore "rp" after the call to
        !          4819:        mcount.
        !          4820: 
        !          4821: Thu Aug 13 06:54:50 1992  Torbjorn Granlund  ([email protected])
        !          4822: 
        !          4823:        * pa.md (movsf recognizer): Output `fcpy,sgl', not `fcpy'.
        !          4824:        From Jeff Law:
        !          4825:        * pa.md (zdepi in HImode): Move this pattern after the standard
        !          4826:        movhi patterns.
        !          4827: 
        !          4828: Wed Aug 12 11:45:15 1992  Michael Meissner  ([email protected])
        !          4829: 
        !          4830:        * mips.h (ASM_FINAL_SPEC): For output of as when -c is not used,
        !          4831:        use %g, rather than %b, because the file is going to be deleted
        !          4832:        anyway (sync up with gcc.c Aug 4 changes).  Patch from Jim Meyering.
        !          4833: 
        !          4834:        * decrose.h (ASM_FINAL_SPEC): Ditto.
        !          4835: 
        !          4836: Wed Aug 12 03:23:30 1992  Richard Stallman  ([email protected])
        !          4837: 
        !          4838:        * fixincludes (finding all .h files): Look for links as well as
        !          4839:        ordinary files.
        !          4840: 
        !          4841:        * m68k.h (TARGET_68040): Test for 01000 or 0400.
        !          4842:        (TARGET_SWITCHES): Rename -m68040 to -m68020-40.
        !          4843:        Rename -m68040-only to -m68040.
        !          4844: 
        !          4845:        * hp2bsd.h (TARGET_DEFAULT): Make value 0.
        !          4846: 
        !          4847: Tue Aug 11 04:23:35 1992  Paul Eggert  ([email protected])
        !          4848: 
        !          4849:        * fold-const.c (operand_equal_p): Make it clear that this function
        !          4850:        tests for indistinguishable values, not for equality as computed by
        !          4851:        `=='; the distinction is important for IEEE NaNs and -0.0.
        !          4852: 
        !          4853: Tue Aug 11 13:10:47 1992  Fred Fish  (fnf at fishpond)
        !          4854: 
        !          4855:        * config.sub (amigaunix/amix):  Use sysv4 as os.
        !          4856:        * configure (m68k-*-amix*):  Change to m68k-cbm-sysv4* and
        !          4857:        eliminate fixincludes and broken_install.
        !          4858: 
        !          4859: Tue Aug 11 15:42:58 1992  Jim Wilson  ([email protected])
        !          4860: 
        !          4861:        * function.c (identify_blocks): Handle case where no block nodes
        !          4862:        exist.  Use xmalloc not alloca for block_vector.
        !          4863:        (reorder_blocks): New argument top_block.  Handle case where no
        !          4864:        block nodes exist.  Always clear BLOCK_SUBBLOCKS (block) when
        !          4865:        adding it to the block tree.
        !          4866:        (all_blocks): Handle case where vector is zero. Store current
        !          4867:        block at offset 0 in vector, not n_blocks.  Don't count current
        !          4868:        block twice in n_blocks.
        !          4869:        * function.h (identify_blocks): Declare.
        !          4870:        (rtx, tree): Move undefs to the very end.
        !          4871:        * loop.c (loop_optimize): Delete uses of loop_number_first_block,
        !          4872:        loop_number_last_block, loop_number_block_level.  Correct call of
        !          4873:        find_loop_tree_blocks.  Add call to unroll_block_trees.
        !          4874:        * loop.h (loop_number_first_block, loop_number_last_block,
        !          4875:        loop_number_block_level): Delete declarations.
        !          4876:        * stmt.c: Likewise.
        !          4877:        (find_loop_tree_blocks): Completely rewritten to use
        !          4878:        identify_blocks.
        !          4879:        (unroll_block_trees): Completely rewritten to use reorder blocks.
        !          4880:        * unroll.c (unroll_loop): Delete call to unroll_block_trees.
        !          4881: 
        !          4882:        * unroll.c (copy_loop_body): Only copy VTOP note if it will end up
        !          4883:        before a loop exit test.
        !          4884: 
        !          4885: Tue Aug 11 09:21:47 1992  Michael Meissner  ([email protected])
        !          4886: 
        !          4887:        * mips.h (MIPS_VERSION): Bump meissner version # to 23.
        !          4888:        (CONST_CODES): Remove declaration for eliminate_constant_term
        !          4889:        from inside of local {}'s.
        !          4890:        (SELECT_SECTION_MODE): Remove declaration of variable
        !          4891:        mips_section_threshold  from inside of local {}'s.
        !          4892:        (SELECT_SECTION): Ditto.
        !          4893: 
        !          4894:        * mips.c (toplevel): Remove declarations for all of the gen_xxx
        !          4895:        functions used, since insn-flags.h contains them.
        !          4896: 
        !          4897:        * mip.md (fixuns_truncdfsi2): Remove extern declarations.
        !          4898:        (fixuns_truncsfsi2): Ditto.
        !          4899:        (movsi_unaligned, movsi_ulw, movsi_usw): Ditto.
        !          4900:        (seq, sne, sgt, sle, sgtu, sleu): Ditto.
        !          4901: 
        !          4902: Tue Aug 11 02:51:25 1992  Richard Stallman  ([email protected])
        !          4903: 
        !          4904:        * fixincludes (memory.h): Fix versions 1.2 and 1.3 as well as 1.4.
        !          4905: 
        !          4906:        * configure: Improve err msg for unknown config.
        !          4907: 
        !          4908: Tue Aug 11 04:02:51 1992  Paul Eggert  ([email protected])
        !          4909: 
        !          4910:        * fold-const.c (fold):  Don't fold (A op B ? A : C) if A is IEEE
        !          4911:        floating point, because A might be -0.0 or NaN.
        !          4912: 
        !          4913:        * c-typeck.c (parser_build_binary_op): Warn about expressions like
        !          4914:        `1<=i<=N'.
        !          4915: 
        !          4916: Mon Aug 10 22:11:50 1992  Michael Meissner  ([email protected])
        !          4917: 
        !          4918:        * reload1.c (emit_reload_insns): Use gen_rtx to create a secondary
        !          4919:        reload insn, not gen_reg_rtx.
        !          4920: 
        !          4921: Mon Aug 10 06:23:23 1992  Torbjorn Granlund  ([email protected])
        !          4922: 
        !          4923:        * pa.md (Recognizer for zdepi_operand in HImode): New pattern.
        !          4924:        (Recognizer for zdepi_operand in SImode): Call output_zdepi for
        !          4925:        output.
        !          4926:        (shift patterns and recognizers): Handle 32 bit ints and truncate
        !          4927:        them for output.
        !          4928:        * pa.c (output_zdepi): New function (contents from pa.md).
        !          4929:        * pa.h (output_zdepi): Declare.
        !          4930: 
        !          4931: Sun Aug  9 17:10:24 1992  Pat Rankin  ([email protected])
        !          4932: 
        !          4933:        * configure.com: Rename vms to vax-vms; split long lines.
        !          4934:        * make-l2.com: Assemble libgcc2 routines twice, preserving
        !          4935:        lowercase function names the second time.
        !          4936: 
        !          4937: Sun Aug  9 00:50:46 PDT 1992  Ron Guilmette  (rfg at netcom.com)
        !          4938: 
        !          4939:        * final.c (final_scan_insn):  Call dwarfout_begin_block and
        !          4940:        dwarfout_end_block even for -g1.
        !          4941: 
        !          4942: Sun Aug  9 18:10:33 1992  Michael Meissner  ([email protected])
        !          4943: 
        !          4944:        * genflags.c (gen_insn): Treat 'call_pop' and 'call_value_pop' like
        !          4945:        'call' and 'call_insn'.
        !          4946: 
        !          4947:        * i386.h (LEGITIMIZE_ADDRESS): Emit_move_insn only takes two
        !          4948:        arguments, not three.
        !          4949: 
        !          4950: Sat Aug  8 10:26:02 1992  Michael Meissner  ([email protected])
        !          4951: 
        !          4952:        * cp-tree.h (hash_chainon): Provide declaration.
        !          4953:        (build_virtual_init): Ditto.
        !          4954:        (build_vbase_delete): Ditto.
        !          4955:        (build_vbase_vtables_init): Ditto.
        !          4956: 
        !          4957:        * genflags.c (insn_name_ptr): Define, so that we can link in
        !          4958:        print-rtl.c for debugging.
        !          4959:        (call_obstack, normal_obstack): New obstacks to remember call
        !          4960:        insns, and normal insns, so that we can emit the prototypes later.
        !          4961:        (max_id_len): New variable to record the maximum identifier
        !          4962:        length.
        !          4963:        (num_operands): New function to return the number MATCH_OPERAND's
        !          4964:        and MATCH_OPERATOR's in an insn tree.
        !          4965:        (gen_proto): New function to print out a prototype for an insn.
        !          4966:        (gen_nonproto): New function to print out a declaration without a
        !          4967:        prototype.
        !          4968:        (gen_insn): Don't emit function declarations here, just save the
        !          4969:        insn on either the call_obstack if it is call or call_value, or
        !          4970:        normal_obstack otherwise.
        !          4971:        (main): Initialize call_obstack, normal_obstack.  After all insns
        !          4972:        are processed, emit function declarations with and without
        !          4973:        prototypes, depending on whether NO_MD_PROTOTYPES, and
        !          4974:        CALL_MD_PROTOTYPES are defined.
        !          4975: 
        !          4976:        * rtl.h (PROTO): If not defined, define to either expand
        !          4977:        prototypes or just expand to (), depending on whether or not, the
        !          4978:        host compiler supports ANSI C.
        !          4979:        (NULL_PTR): Define as void * if we have prototypes.
        !          4980:        (all function declarations): Add prototypes for all functions
        !          4981:        where it is feasible to do so, using the PROTO macro.
        !          4982:        (force_reg): Add declaration.
        !          4983:        (eliminate_constant_term): Ditto.
        !          4984:        (output_constant_def): If tree.h has been included, add prototype.
        !          4985:        (immed_real_const): Ditto.
        !          4986:        (immed_real_const_1): Ditto.
        !          4987:        (make_tree): Ditto.
        !          4988: 
        !          4989:        * tree.h (PROTO): If not defined, define to either expand
        !          4990:        prototypes or just expand to (), depending on whether or not, the
        !          4991:        host compiler supports ANSI C.
        !          4992:        (NULL_PTR): Define as void * if we have prototypes.
        !          4993:        (all function declarations): Add prototypes for all functions
        !          4994:        where it is feasible to do so, using the PROTO macro.  Do not
        !          4995:        define prototypes for build_binary_op, or build_indirect_ref,
        !          4996:        since GNU C and GNU G++ have different numbers of arguments.  Do
        !          4997:        not define prototypes for make_tree, since it takes a rtx as the
        !          4998:        argument, and rtl.h is included after tree.h.
        !          4999: 
        !          5000: Sat Aug  8 07:36:19 1992  Tom Wood  ([email protected])
        !          5001: 
        !          5002:        * cp-lex.c: Include stdlib.h and locale.h if needed.
        !          5003:        (errno): Declare only if it isn't a macro.
        !          5004:        * cp-tree.c (__eprintf): `line' is unsigned.
        !          5005:        * cp-typeck.c (mark_addressable): Use DECL_EXTERNAL not TREE_EXTERNAL.
        !          5006: 
        !          5007: Fri Aug  7 00:16:28 1992  Richard Stallman  ([email protected])
        !          5008: 
        !          5009:        * gcc.c (read_specs): Cast args of xmalloc and read to unsigned.
        !          5010: 
        !          5011:        * final.c (final_scan_insn): Use ASM_OUTPUT_ADDR_DIFF_ELT
        !          5012:        and ASM_OUTPUT_ADDR_VEC_ELT only if defined.
        !          5013: 
        !          5014: Thu Aug  6 22:00:13 1992  Jim Wilson  ([email protected])
        !          5015: 
        !          5016:        * sched.c (true_dependence): An unchanging read is guaranteed
        !          5017:        independent of a store only if the store is not unchanging.
        !          5018:        (anti_dependence): Added comment about unchanging reads.
        !          5019:        (sched_analyze_2): Don't ignore unchanging reads, they may be
        !          5020:        dependent on unchanging writes.
        !          5021: 
        !          5022:        * sparc.md: Correct DEFINE_SPLITs added Jul 27.  They would
        !          5023:        overwrite the input register if it was the same as the result reg.
        !          5024: 
        !          5025: Thu Aug  6 16:25:48 1992  Jeffrey A. Law  ([email protected])
        !          5026: 
        !          5027:        * pa.h (ASM_FILE_START): If profiling IMPORT "_mcount" instead of 
        !          5028:        "__gcc_mcount".
        !          5029: 
        !          5030:        * These changes allow the PA to make use of the BSS subspace.  They
        !          5031:        require you to use the HPUX assembler or a fixed version of pa-gas
        !          5032:        (available soon on jaguar.cs.utah.edu).
        !          5033:        * pa.h (TARGET_SWITCHES): New switch "no-bss" which forces gcc not
        !          5034:        to make use of the bss subspace.  (For compatability with old buggy
        !          5035:        versions of pa-gas.)
        !          5036:        (ASM_FILE_START): Add $BSS$ subspace.
        !          5037:        (BSS_SECTION_ASM_OP): New macro which tells the assembler to switch
        !          5038:        to the bss subspace.
        !          5039:        (EXTRA_SECTIONS): Define in_bss as an extra section.
        !          5040:        (EXTRA_SECTION_FUNCTIONS): Define "bss_section" function to switch
        !          5041:        into the bss subspace.
        !          5042:        (ASM_OUTPUT_COMMON): If !TARGET_NO_BSS, then place commons into the
        !          5043:        bss subspace.
        !          5044:        (ASM_OUTPUT_LOCAL): Likewise.
        !          5045: 
        !          5046: Thu Aug  6 13:04:16 1992  Tim Moore  ([email protected])
        !          5047: 
        !          5048:        * gvarargs.h : Check hp800 symbol too for the hppa case.
        !          5049:        * va-pa.h : Rewrite to be compatible with hpux.
        !          5050:        * pa.c (hppa_builtin_saveregs): Rewrite.
        !          5051:        (secondary_reload_class): Bug fix.
        !          5052:        (arith32_operand): New function.
        !          5053: 
        !          5054: Wed Aug  5 11:23:05 1992  Tom Wood  ([email protected])
        !          5055: 
        !          5056:        * m88k.h (EXTRA_SECTIONS, svr3): Delete empty definitions for
        !          5057:        CTORS_SECTION_FUNCTION and DTORS_SECTION_FUNCTION.  Add in_ctors
        !          5058:        and in_dtors.
        !          5059: 
        !          5060: Tue Aug  4 23:54:15 1992  Richard Stallman  ([email protected])
        !          5061: 
        !          5062:        * gcc.c (default_compilers): For output of as when -c is not used,
        !          5063:        use %g, rather than %b, because the file is going to be deleted
        !          5064:        anyway.
        !          5065: 
        !          5066: Tue Aug  4 20:30:12 1992  Michael Meissner  ([email protected])
        !          5067: 
        !          5068:        * cp-decl.c (grokdeclarator): Call build_type_variant to set const
        !          5069:        and volatile flags, since build_reference_type does not take those
        !          5070:        arguments.
        !          5071: 
        !          5072:        * cp-parse.y  (attribute processing): Correctly call tree_cons with
        !          5073:        three arguments, passing NULL_TREE for the chain argument.
        !          5074: 
        !          5075:        * cp-tree.h (hash_chainon): Add declaration for this function.
        !          5076:        (build_virtual_init): Ditto.
        !          5077:        (build_vbase_delete): Ditto.
        !          5078:        (build_vbase_vtables_init): Ditto.
        !          5079: 
        !          5080:        * cp-typeck.c (build_modify_expr_1): Pass 0 as third argument to
        !          5081:        build_unary_op.
        !          5082:        (build_modify_expr): Ditto.
        !          5083: 
        !          5084: Tue Aug  4 18:10:46 1992  Mike Stump  ([email protected])
        !          5085: 
        !          5086:        * cp-tree.h, tree.h:  Moved definitions of TREE_VIA_* into tree.h for
        !          5087:        consistency.
        !          5088: 
        !          5089: Tue Aug  4 17:35:32 1992  Mike Stump  ([email protected])
        !          5090: 
        !          5091:        Complete 10th FSF <---> Cygnus merge.
        !          5092: 
        !          5093:        Tue Aug  4 12:58:59 1992  Mike Stump  ([email protected])
        !          5094: 
        !          5095:        * cp-decl.c (pushtag): Don't set DECL_IGNORED_P for binding
        !          5096:        layer markers, use only DECL_SOURCE_LINE == 0, as otherwise,
        !          5097:        it messes up dbxout.c.
        !          5098: 
        !          5099:        Tue Aug  4 11:59:36 1992  Mike Stump  ([email protected])
        !          5100: 
        !          5101:        Tue Aug  4 13:43:55 1992  Chip Salzenberg  ([email protected])
        !          5102: 
        !          5103:        * cp-method.c (hack_identifier): Remove redundant call of
        !          5104:        assemble_external.
        !          5105: 
        !          5106:        Tue Aug  4 10:23:02 1992  Chip Salzenberg  ([email protected])
        !          5107: 
        !          5108:        * cp-decl.c (pushdecl): Any kind of DECL should be good enough
        !          5109:        at global scope, not just a TEMPLATE_DECL.
        !          5110: 
        !          5111:        Sun Aug  2 21:12:55 1992  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)
        !          5112: 
        !          5113:        * cp-tree.c: change definition of __eprintf to match libgcc2.c and
        !          5114:        assert.h
        !          5115: 
        !          5116:        Fri Jul 31 16:53:26 1992  Mike Stump  ([email protected])
        !          5117: 
        !          5118:        * cp-tree (break_out_calls): Only make ony copy of a node on
        !          5119:        's' and 'e' nodes.  Handle 'r' just like 's' and 'e' because
        !          5120:        nodes of type 'r' can be of different sizes (the old code
        !          5121:        would do the wrong thing for a COMPONENT_REF).
        !          5122: 
        !          5123:        Thu Jul 30 11:46:14 1992  Michael Tiemann  ([email protected])
        !          5124: 
        !          5125:        * cp-init.c (emit_base_init): Set transparent basetypes (those w/o
        !          5126:        ctors) as marked if we need to walk up the tree to find a ctor.
        !          5127: 
        !          5128:        Wed Jul 29 03:25:51 1992  Michael Tiemann  ([email protected])
        !          5129: 
        !          5130:        * cp-decl.c (grokdeclarator): In SCOPE_REF case, sort out visibility
        !          5131:        declarations from other declarations, since the compiler will
        !          5132:        ultimately handle them differently.  This is a part of the solution
        !          5133:        to p525.
        !          5134:        (finish_method): Tentative (and probably wrong) fix for carrying
        !          5135:        along inline methods delcared within a class that really belong to
        !          5136:        nested classes of the class.  This may be more of the solution to
        !          5137:        p525.
        !          5138: 
        !          5139:        * cp-init.c (build_offset_ref): Use IDENTIFIER_TYPE_VALUE of CNAME
        !          5140:        when CURRENT_CLASS_DECL is 0.
        !          5141: 
        !          5142:        * cp-class.c (finish_struct): Don't give errors for TYPE_DECLs in a
        !          5143:        struct that are really only meant for FIELD_DECLs.
        !          5144: 
        !          5145:        Tue Jul 28 23:36:58 1992  Mike Stump  ([email protected])
        !          5146: 
        !          5147:        * cp-decl.c (grok_op_properties):  Do not core dump on parse errors.
        !          5148: 
        !          5149:        Tue Jul 28 22:43:12 1992  Mark Eichin  ([email protected])
        !          5150: 
        !          5151:        * cp-pt.c (end_template_instantiation) YYDEBUG is now defined in
        !          5152:        cp-parse.h -- so don't assume that it's -2 (since under byacc it is
        !          5153:        -1 anyway.) iomanip.C compiles again.
        !          5154: 
        !          5155:        Tue Jul 28 22:33:46 1992  Mike Stump  ([email protected])
        !          5156: 
        !          5157:        * cp-typeck.c (build_c_cast):  Allow cast to array type in
        !          5158:        some situations to be more compatible with Cfront.
        !          5159: 
        !          5160:        Tue Jul 28 22:05:14 1992  Mark Eichin  ([email protected])
        !          5161: 
        !          5162:        * cp-parse.y (print_parse_statistics): don't reference TOKEN_LENGTH
        !          5163:        or REDUCE_LENGTH unless GATHER_STATISTICS is set. (YYDEBUG alone is
        !          5164:        not a sufficient condition.)
        !          5165: 
        !          5166:        Tue Jul 28 19:18:30 1992  Mike Stump  ([email protected])
        !          5167: 
        !          5168:        * cp-tree.c (break_out_calls): Don't do anything special to
        !          5169:        SAVE_EXPRs, as they cannot contain calls that would need
        !          5170:        breaking out.  This fixes a problem introduced on Jul 15, by
        !          5171:        Ron Guilmette.
        !          5172: 
        !          5173:        Mon Jul 27 16:55:52 1992  Mike Stump  ([email protected])
        !          5174: 
        !          5175:        * c++:  Fix errors introduced by rms.  Bullet-proof handling
        !          5176:        of arguments with funny things in them such as newlines,
        !          5177:        spaces, tabs, single quotes, double quotes, etc...
        !          5178: 
        !          5179:        Mon Jul 27 15:03:23 1992  Ken Raeburn  ([email protected])
        !          5180: 
        !          5181:        * cp-init.c (build_vec_delete): Extract size of type even for
        !          5182:        destructorless types, so value can be computed to pass to delete
        !          5183:        operator.
        !          5184: 
        !          5185:        * Bludgeon interface/implementation code into leaving templates
        !          5186:        alone, until we've figured out how to handle their interaction
        !          5187:        properly:
        !          5188:        * cp-parse.y (template_instantiate_once): Temporarily set interface
        !          5189:        flags to `unknown' while processing member templates.
        !          5190:        * cp-decl.c (grokfndecl): Even if class vtable is getting written
        !          5191:        out, regardless of interface setting of class and write_virtuals
        !          5192:        flag, don't force virtual destructor of template class to be public.
        !          5193:        * cp-tree.h (struct pending_inline): New field `interface'.
        !          5194:        * cp-lex.c (do_pending_inlines): Restore interface flags from stored
        !          5195:        values, rather than calling extract_interface_info.
        !          5196:        (process_next_inline): Likewise, if more pending inlines exist; else
        !          5197:        do call extract_interface_info.
        !          5198:        (reinit_parse_for_method): Save away interface flags.
        !          5199:        (cons_up_default_function): Ditto.
        !          5200:        * cp-pt.c (instantiate_template): Set saved interface flag to
        !          5201:        `unknown'.
        !          5202:        (end_template_instantiation): Set CLASSTYPE_INTERFACE_UNKNOWN.
        !          5203: 
        !          5204:        * cp-pt.c (instantiate_member_templates): Deleted some unused code.
        !          5205: 
        !          5206:        * cp-decl.c (grokfndecl): Make class methods public if
        !          5207:        `implementation' pragma is set.
        !          5208: 
        !          5209:        * cp-pt.c (pending_templates): No longer exported.
        !          5210:        (add_pending_template): Ditto.
        !          5211:        * cp-parse.y (primary): Don't check it; always call
        !          5212:        do_pending_templates.
        !          5213: 
        !          5214:        Fri Jul 24 14:22:39 1992  Mike Stump  ([email protected])
        !          5215: 
        !          5216:        * cp-decl.c (init_decl_processing, finish_function),
        !          5217:        cp-method.c (build_decl_overload, build_opfncall), cp-init.c
        !          5218:        (build_x_delete, build_delete, build_vec_delete):  Add support
        !          5219:        for two argument delete to support ARM 12.5.  In some cases,
        !          5220:        the argument is smaller than it should be.
        !          5221: 
        !          5222:        Thu Jul 23 08:12:16 1992  Mike Stump  ([email protected])
        !          5223: 
        !          5224:        * cp-lex.c:  Update wide character handling from c-lex.c and make
        !          5225:        the type of multicharacter constants be int per ANSI C++ WP.
        !          5226: 
        !          5227:        * cp-decl.c (init_decl_processing, grokdeclarator), cp-lex.h,
        !          5228:        gplus.gperf, cp-lex.c (init_lex), cp-decl2.c (groktypefield),
        !          5229:        cp-method.c (build_overload_name): Add support for wchar_t as a
        !          5230:        distinct type to conform to x3j16 working paper.
        !          5231:        * cp-hash.h: Regenerated.
        !          5232: 
        !          5233:        Wed Jul 22 17:41:08 1992  Mark Eichin  ([email protected])
        !          5234: 
        !          5235:        * cp-parse.y (structsp): note_got_semicolon was called before
        !          5236:        finish_struct (which always clears the got_semicolon bit.) However,
        !          5237:        note_got_semicolon was only called if yychar==';', without checking
        !          5238:        for YYEMPTY.
        !          5239: 
        !          5240:        Tue Jul 21 22:59:32 1992  Michael Tiemann  ([email protected])
        !          5241: 
        !          5242:        * cp-typeck.c (mark_addressable): If we have a recursive call to an
        !          5243:        otherwise inline function, clear TREE_EXTERNAL so the whole function
        !          5244:        is written to the asm file.
        !          5245: 
        !          5246:        Tue Jul 21 05:31:10 1992  Ken Raeburn  ([email protected])
        !          5247: 
        !          5248:        * cp-tree.h (start_type_method): Deleted unused declaration.
        !          5249: 
        !          5250:        * cp-pt.c (tsubst): Fix propagation of qualifiers in several cases.
        !          5251: 
        !          5252:        * cp-pt.c (tsubst, case FUNCTION_DECL): Look for matches that differ
        !          5253:        only in return type.
        !          5254: 
        !          5255:        * cp-pt.c (tsubst, case FUNCTION_DECL): Rewrite name of
        !          5256:        type-conversion operators, in case the target type involves a
        !          5257:        template parameter.
        !          5258: 
        !          5259:        Mon Jul 20 03:35:44 1992  Michael Tiemann  ([email protected])
        !          5260: 
        !          5261:        * cp-class.c (add_virtual_function): Don't crash if
        !          5262:        CURRENT_CLASS_TYPE is NULL_TREE.
        !          5263:        * cp-decl2.c (grokfield): Ditto.
        !          5264: 
        !          5265: Tue Aug  4 15:36:07 1992  Richard Stallman  ([email protected])
        !          5266: 
        !          5267:        * c-decl.c (finish_decl): Don't do expand_decl_init for FUNCTION_DECL.
        !          5268: 
        !          5269:        * c-typeck.c (build_conditional_expr): Merged const and volatile flags
        !          5270:        of incoming types.
        !          5271: 
        !          5272: Tue Aug  4 11:15:47 1992  Chip Salzenberg  ([email protected])
        !          5273: 
        !          5274:        * c-decl.c (finish_struct):  If bit field is of an unsigned
        !          5275:        type that promotes to int, promote it unsigned if traditional
        !          5276:        or if it is the same size as int.
        !          5277:        (start_function):  Ditto for function return value.
        !          5278:        * c-typeck.c (default_conversion):  Ditto -- fix bug that
        !          5279:        promotes short to unsigned if sizeof(short) == sizeof(int).
        !          5280: 
        !          5281: Tue Aug  4 15:12:51 1992  Tom Wood  ([email protected])
        !          5282: 
        !          5283:        * svr3.h (USING_SVR3_H): Define.
        !          5284:        * svr4.h (USING_SVR4_H): Define.
        !          5285:        * aoutos.h (USING_AOUTOS_H): Define.
        !          5286:        * m88k.h (EXTRA_SECTIONS): Base on the above defines.
        !          5287: 
        !          5288: Tue Aug  4 14:22:44 1992  Jim Wilson  ([email protected])
        !          5289: 
        !          5290:        * dbxout.c: Include output.h.
        !          5291: 
        !          5292: Tue Aug  4 00:21:06 1992  Richard Stallman  ([email protected])
        !          5293: 
        !          5294:        * Makefile.in (install-common): Install protoize and related files
        !          5295:        if they were compiled.
        !          5296:        (install-proto): Target deleted.
        !          5297:        (dbxout.o): Depend on output.h.
        !          5298: 
        !          5299: Mon Aug  3 02:04:03 1992  Richard Stallman  ([email protected])
        !          5300: 
        !          5301:        * c-decl.c (finish_function): Test only can_reach_end for the warning
        !          5302:        about reaching the end of a non-void function.
        !          5303:        (poplevel): If apparently nested inline function has
        !          5304:        DECL_ABSTRACT_ORIGIN, don't output it; propagate TREE_ADDRESSABLE.
        !          5305:        (pushdecl): When copying inline details into an extern decl,
        !          5306:        copy DECL_RESULT, TREE_ASM_WRITTEN.  Set DECL_ABSTRACT_ORIGIN.
        !          5307: 
        !          5308:        * c-parse.y (datadef): For empty declaration, use pedwarn.
        !          5309:        * objc-parse.y (datadef, mydecl): Likewise.
        !          5310: 
        !          5311:        * Makefile.in (install-cross-tools): Install nm from tooldir.
        !          5312: 
        !          5313:        * varasm.c: Include real.h.
        !          5314:        * sparcv4.h: Don't include real.h.
        !          5315: 
        !          5316:        * flow.c (mark_used_regs): Do recurse in setting of global hard reg.
        !          5317:        Do set reg_next_use for global hard reg.
        !          5318: 
        !          5319:        * objc-parse.y (reserved_declspecs, declmods): Change as in c-parse.y.
        !          5320: 
        !          5321: Mon Aug  3 03:24:17 1992  Paul Eggert  ([email protected])
        !          5322: 
        !          5323:        * c-parse.y (reserved_declspecs): Warn if storage class occurs here.
        !          5324:        (declmods): Warn if storage class is not first.
        !          5325: 
        !          5326: Sun Aug  2 21:44:34 1992  Richard Kenner  ([email protected])
        !          5327: 
        !          5328:        * emit-rtl.c (gen_rtx, case REG): Don't use frame_pointer_rtx or
        !          5329:        arg_pointer_rtx if reload is in progress.
        !          5330: 
        !          5331:        * jump.c (jump_optimize): When replacing jumps with logical
        !          5332:        expressions, use preserve_subexpressions_p.
        !          5333: 
        !          5334:        * calls.c (expand_call): Use HOST_WIDE_INT instead of int when
        !          5335:        comparing a pointer to an integer constant.
        !          5336:        * flow.c (find_use_as_address): Likewise; also when returning int.
        !          5337:        * integrate.c (expand_inline_function): Cast -1 to (HOST_WIDE_INT)
        !          5338:        first.
        !          5339: 
        !          5340:        * cse.c (canon_hash): Use HOST_WIDE_INT instead of int when casting
        !          5341:        pointers to integers.
        !          5342:        * print-tree.c (print_node): Likewise.
        !          5343:        * tree.c (TYPE_HASH): Likewise.
        !          5344:        * varasm.c (const_hash, SYMHASH): Likewise.
        !          5345: 
        !          5346:        * toplev.c: (main): Don't cast pointers to int unnecessarily.
        !          5347: 
        !          5348:        * tree.c: Include function.h after tree.h.
        !          5349: 
        !          5350:        * rtl.h (NOTE_BLOCK_NUMBER): Change definition to simpler form.
        !          5351:        (SET_NOTE_BLOCK_NUMBER): Deleted.
        !          5352:        (xrealloc, oballoc, permalloc): Declare here as well as in tree.h.
        !          5353:        * function.c (identify_blocks, reorder_blocks): Don't use
        !          5354:        SET_NOTE_BLOCK_NUMBER.
        !          5355: 
        !          5356:        * varasm.c (struct addr_const): Use HOST_WIDE_INT for OFFSET.
        !          5357: 
        !          5358:        * combine.c (reg_sign_bit_copies): New variable.
        !          5359:        (combine_instructions): Initialize it.
        !          5360:        (set_significant): Set it.
        !          5361:        (try_combine): Set subst_low_cuid immediately before calling `subst'
        !          5362:        to the INSN_CUID of the lowest insn involved in the call.
        !          5363:        Change XOR with out-of-range constant to (not (xor ...)).
        !          5364:        Call both split_insns and find_split_point; pass extra parm to
        !          5365:        find_split_point.
        !          5366:        Record I2DEST's value if I2 now sets it; similarly for I1DEST.
        !          5367:        (find_split_point): Add new arg INSN.
        !          5368:        If AND'ing with a large single-bit constant and we only care about
        !          5369:        equality with zero, replace with bit extraction.
        !          5370:        Make two shifts for ZERO_EXTRACTs unless very narrow.
        !          5371:        (subst): Move RESTART label earlier.
        !          5372:        If we have a simple operation applied to IF_THEN_ELSE, move
        !          5373:        the operation inside the two arms.
        !          5374:        (subst, case SUBREG): Use force_to_mode.
        !          5375:        (subst, case NOT): Change (not (xor X C)) to (xor X ~C).
        !          5376:        (subst, case NEG): Remove optimization of (neg (abs X)); redundant.
        !          5377:        Convert (neg (xor A 1)) to (plus A -1) if A is known to be 0 or 1.
        !          5378:        (subst, case IF_THEN_ELSE): Simplify if an arm contains a register
        !          5379:        being tested by substiting the known value.
        !          5380:        Put constant integer in last arm is can reverse comparison.
        !          5381:        (subst, case SET): Use gen_lowpart_for_combine.
        !          5382:        (subst, case AND): Make IF_THEN_ELSE when appropriate.
        !          5383:        (subst, case IOR): (ior A C) can sometimes be just C.
        !          5384:        (subst, case XOR): Go back and restart when canonicalizing.
        !          5385:        (subst, case ABS): Use num_sign_bit_copies.
        !          5386:        (make_extraction): Call force_to_mode.
        !          5387:        (make_compound_operation): Look at optabs rather that explicitly
        !          5388:        checking for operations and assuming we have SImode.
        !          5389:        Handle (ashiftrt (OP (ashift foo C1) C3) C2).
        !          5390:        (force_to_mode): Only change mode of arithmetic if optab says we
        !          5391:        have operation in that mode.
        !          5392:        Remove unneeded ASHIFTRT; add handling for IF_THEN_ELSE.
        !          5393:        (significant_bits, case NEG): Call num_sign_bit_copies.
        !          5394:        (significant_bits, case ABS, case [US]{MIN,MAX}, IF_THEN_ELSE): New.
        !          5395:        (num_sign_bit_copies): New function.
        !          5396:        (simplify_shift_const): Remove ASHIFTRT if value is known -1 or 0.
        !          5397:        Use num_sign_bit_copies to simplify (ashiftrt (ashift ...) ...)
        !          5398:        and (ashiftrt (neg ...) ...).
        !          5399:        Remove now redundant case when VAROP is a PLUS.
        !          5400:        (simplify_comparison): If A is known to be -1 or 0, A != -1 is A == 0.
        !          5401:        Simplify unsigned tests that really check the sign bit.
        !          5402:        (simplify_comparison, case ASHIFTRT): Convert to LSHIFTRT if 
        !          5403:        equality comparison with zero.
        !          5404:        (get_last_value): Check if the desired register is set in the
        !          5405:        insn before the one whose INSN_CUID is subst_low_cuid.
        !          5406: 
        !          5407:        * expr.c (expand_builtin, case BUILT_IN_CONSTANT_P): Add missing
        !          5408:        call to TREE_CODE.
        !          5409: 
        !          5410:        * reload1.c (reload): Set reload_in_progress earlier.
        !          5411: 
        !          5412:        * fold-const.c (optimize_bit_field_compare): Correct bogus use of
        !          5413:        types in expressions; always do computation in a type wide enough
        !          5414:        for the result.
        !          5415: 
        !          5416: Sun Aug  2 01:30:22 1992  Richard Stallman  ([email protected])
        !          5417: 
        !          5418:        * objc-parse.y (attrib): Copied from c-parse.y.
        !          5419: 
        !          5420: Sat Aug  1 13:34:49 1992  Richard Stallman  ([email protected])
        !          5421: 
        !          5422:        * c-pragma.c (HANDLE_PRAGMA_WEAK): Define only if SET_ASM_OP defined.
        !          5423: 
        !          5424:        * vax-vms.h: Renamed from vms.h.
        !          5425:        * xm-vax-vms.h: Renamed from xm-vms.h.
        !          5426:        * configure (vax-*-vms): Change file names.
        !          5427: 
        !          5428: Sat Aug  1 16:13:09 1992  Mark Eichin  ([email protected])
        !          5429: 
        !          5430:        * config/spc-sol2.h (ASM_OUTPUT_DWARF_STRING): redefinition was
        !          5431:        incorrect, and uneeded; while Solaris as doesn't support .string, it
        !          5432:        does support .asciz, and sparcv4.h takes care of including that
        !          5433:        definition.
        !          5434: 
        !          5435: Fri Jul 31 08:19:41 1992  Richard Kenner  ([email protected]
        !          5436: 
        !          5437:        * combine.c (try_combine): Correctly handle implicit deaths of
        !          5438:        I2DEST and I1DEST.
        !          5439: 
        !          5440:        * cexp.y: Add declaration for xmalloc.
        !          5441: 
        !          5442:        * cccp.c: Add declarations for malloc and realloc.
        !          5443:        Include stddef.h when __STDC__ is defined.
        !          5444:        (PTR_INT_TYPE): New macro.
        !          5445:        (pcfinclude): Use it.
        !          5446: 
        !          5447:        * c-decl.c (init_decl_processing): __builtin_return_address,
        !          5448:        __builtin_frame_address, and __builtin_saveregs all return void *.
        !          5449: 
        !          5450:        * reload.c (find_reloads_address_1): Convert another push_reload
        !          5451:        call into a call to find_reloads_address_part.
        !          5452: 
        !          5453:        * reload1.c (gen_input_reload): Correct order of insns emitted
        !          5454:        when using secondary memory.
        !          5455: 
        !          5456:        * reload1.c (reload_as_needed): Add missing semicolon after macro.
        !          5457: 
        !          5458:        * combine.c (distribute_notes, case REG_DEAD): If a register used
        !          5459:        exactly twice is referenced in both I2 and I3, show it is used 3 times.
        !          5460: 
        !          5461:        * final.c (output_operand): Abort if X is a pseudo.
        !          5462: 
        !          5463:        * cse.c (exp_equiv_p, case CONST_INT): Use INTVAL instead of XINT.
        !          5464: 
        !          5465:        * expr.c (convert_move): Put FROM into a register if it is a SUBREG.
        !          5466:        (For extension case.)
        !          5467: 
        !          5468: Fri Jul 31 08:19:05 1992  Tom Wood  ([email protected])
        !          5469: 
        !          5470:        * function.c (reposition_prologue_and_epilogue_notes): Search for
        !          5471:        the notes without using basic_block_end[0] or basic_block_head[N-1].
        !          5472: 
        !          5473: Fri Jul 31 08:18:18 1992  Michael Meissner  ([email protected])
        !          5474: 
        !          5475:        * reorg.c (get_branch_condition): Return 0 if all tests fall through.
        !          5476: 
        !          5477: Fri Jul 31 02:28:02 1992  Richard Stallman  ([email protected])
        !          5478: 
        !          5479:        * glimits.h: Renamed from limits.h.
        !          5480:        * Makefile.in (LIMITS_H): Deleted.
        !          5481:        (install-limits-h): Use glimits.h, not limits.h.
        !          5482:        * libgcc2.c: Include glimits.h.
        !          5483: 
        !          5484: Thu Jul 30 09:54:07 1992  Tom Wood  ([email protected])
        !          5485: 
        !          5486:        * m88k.h (FUNCTION_BOUNDARY, ASM_OUTPUT_ALIGN_CODE): Pack code
        !          5487:        more tightly for the m88110.
        !          5488: 
        !          5489:        * m88k.md (cpu attribute): List m88100 first for more efficient
        !          5490:        code in insn-attrtab.c.
        !          5491: 
        !          5492:        * m88k.md (rotate/and split pattern): Fix typo.
        !          5493: 
        !          5494: Thu Jul 30 00:02:45 1992  Richard Stallman  ([email protected])
        !          5495: 
        !          5496:        * i860mach.h: New file.
        !          5497:        * configure (i860-*-mach*): New alternative.
        !          5498: 
        !          5499:        * svr3.h (BSS_SECTION_FUNCTION): New macro.
        !          5500:        (CTORS_SECTION_FUNCTION, DTORS_SECTION_FUNCTION): Enable these.
        !          5501:        * tower-as.h (BSS_SECTION_FUNCTION): Deleted.
        !          5502:        * dpx2.h (EXTRA_SECTION_FUNCTIONS): Deleted.
        !          5503:        * att386.h (BSS_SECTION_FUNCTION): #undef before defining.
        !          5504: 
        !          5505:        * i860v3.h (USE_CONST_SECTION): #undef before defining.
        !          5506: 
        !          5507: Wed Jul 29 20:04:55 1992  Jim Wilson  ([email protected])
        !          5508: 
        !          5509:        * sparc.md (cmpsi): Delete 'J' constraint.
        !          5510: 
        !          5511: Wed Jul 29 00:38:45 1992  Richard Stallman  ([email protected])
        !          5512: 
        !          5513:        * c-lex.c (yylex): When traditional, convert 0x80000000 to -0x80000000.
        !          5514: 
        !          5515:        * gcc.c (link_command_spec): Accept -static but do nothing with it.
        !          5516: 
        !          5517:        * loop.c (move_movables): When testing whether a reg contains
        !          5518:        the function address of a call_insn in a libcall block,
        !          5519:        use reg_referenced_p, to ignore destinations.
        !          5520: 
        !          5521:        * stor-layout.c (layout_record): Take account of
        !          5522:        maximum_field_alignment when using the field's alignment.
        !          5523: 
        !          5524:        * c-parse.y (attrib): Fix previous change--the missing arg
        !          5525:        was the last arg.
        !          5526: 
        !          5527:        * fixincludes: Don't repeat the directory-link-chasing loop
        !          5528:        more than twice.  Combine $prevdirs with $dirs--they had same value.
        !          5529:        Properly discard $d itself from the output of find.
        !          5530:        Find the links to directories by finding each link
        !          5531:        and testing it with test.  Add $newdirs into $files.
        !          5532: 
        !          5533: Tue Jul 28 12:46:31 1992  Michael Meissner  ([email protected])
        !          5534: 
        !          5535:        * c-common.c (decl_attributes): Call layout_decl with two arguments.
        !          5536: 
        !          5537:        * c-parse.y (attribute processing): Correctly call tree_cons with
        !          5538:        three arguments, passing NULL_TREE for the purpose argument.
        !          5539: 
        !          5540:        * emit-rtl.c (make_insn_raw): Eliminate unused argument pat_formals,
        !          5541:        and modify all callers.
        !          5542:        (make_jump_insn_raw): Ditto.
        !          5543: 
        !          5544:        * reorg.c (fill_slots_from_thread): Function follow_jumps only takes
        !          5545:        one argument.
        !          5546:        (relax_delay_slots): Ditto.
        !          5547: 
        !          5548: Tue Jul 28 16:04:43 1992  Richard Stallman  ([email protected])
        !          5549: 
        !          5550:        * dpx2g.h (ASM_OUTPUT_IDENT): #undef it.
        !          5551: 
        !          5552:        * c-decl.c (duplicate_decls): Handle warn_redundant_decls here.
        !          5553:        But don't warn if function definition follows a declaration.
        !          5554:        (pushdecl): Don't handle it here.
        !          5555:        (grokparms): Don't warn about non-prototype decl in system header.
        !          5556: 
        !          5557:        * c-convert.c (convert): If main variants match, 
        !          5558:        but the type is not identical, make a NOP_EXPR.
        !          5559: 
        !          5560: Tue Jul 28 10:06:18 1992  Jim Wilson  ([email protected])
        !          5561: 
        !          5562:        * mips.md: Correct use of `*' in constraints.  Put it before each
        !          5563:        letter to ignore, not each group to ignore.
        !          5564: 
        !          5565: Tue Jul 28 01:23:35 1992  Richard Stallman  ([email protected])
        !          5566: 
        !          5567:        * dbxout.c (dbxout_parms): Do something for structures
        !          5568:        passed by invisible reference, and living in memory.
        !          5569: 
        !          5570:        * gstddef.h (wchar_t): Alternate typedef for C++.
        !          5571: 
        !          5572:        * Makefile.in (extraclean): Delete config/ChangeLog.
        !          5573: 
        !          5574:        * m68k.md (probe): Use %a0 to output the address.
        !          5575: 
        !          5576: Mon Jul 27 20:08:21 1992  Mike Stump  (mrs@hal)
        !          5577: 
        !          5578:        * c++:  Fix errors introduced by rms.  Bullet-proof handling of
        !          5579:        arguments with funny things in them such as newlines, spaces, tabs,
        !          5580:        single quotes, double quotes, etc...
        !          5581: 
        !          5582: Mon Jul 27 17:38:52 1992  Jim Wilson  ([email protected])
        !          5583: 
        !          5584:        * sparc.md: Add DEFINE_SPLITs to optimize logic operation with
        !          5585:        certain immediate values.
        !          5586: 
        !          5587:        * sparc.md: Correct inconsistent operand constraints in peepholes.
        !          5588: 
        !          5589:        * sparc.h (ASM_LONG, ASM_SHORT, ASM_BYTE_OP):  Definitions added.
        !          5590:        (ASM_OUTPUT_DOUBLE):  Use REAL_VALUE_TO_TARGET_DOUBLE to convert.
        !          5591:        (ASM_OUTPUT_FLOAT):  Use REAL_VALUE_TO_TARGET_SINGLE to convert.
        !          5592:        (ASM_OUTPUT_INT):  Use ASM_LONG pseudo-op.
        !          5593:        (ASM_OUTPUT_SHORT):  Use ASM_SHORT pseudo-op.
        !          5594:        (ASM_OUTPUT_CHAR):  Use ASM_BYTE_OP pseudo-op.
        !          5595:        (ASM_OUTPUT_BYTE):  Use ASM_BYTE_OP pseudo-op.
        !          5596: 
        !          5597: Mon Jul 27 17:10:19 1992  Richard Stallman  ([email protected])
        !          5598: 
        !          5599:        * gstdarg.h (va_arg): Don't use +=; no need to set AP twice.
        !          5600: 
        !          5601: Sun Jul 26 14:21:13 1992  Richard Stallman  ([email protected])
        !          5602: 
        !          5603:        * final.c (final_scan_insn): Align jump table only if
        !          5604:        READONLY_DATA_SECTION.  Otherwise, the table is in the text section.
        !          5605: 
        !          5606:        * collect2.c (dup2): Defined, if NO_DUP2.
        !          5607: 
        !          5608:        * plexus.h: New file.
        !          5609:        * m68k.c (output_function_prologue): Make a probe instruction
        !          5610:        if NEED_PROBE if nonzero.
        !          5611:        * configure (m68k-plexus-sysv*): New alternative.
        !          5612: 
        !          5613:        * c-convert.c (convert): Succeed if TYPE is the main variant
        !          5614:        of the given type.
        !          5615:        * c-typeck.c (build_conditional_expr): Compare using TYPE_MAIN_VARIANT.
        !          5616: 
        !          5617:        * c-decl.c (duplicate_decls): Copy old RTL *before* make_var_volatile.
        !          5618: 
        !          5619: Sat Jul 25 21:45:44 1992  Richard Stallman  ([email protected])
        !          5620: 
        !          5621:        * c-decl.c (pushdecl): Never reuse global fcn decl in place of
        !          5622:        local extern; just copy some info from it.
        !          5623: 
        !          5624: Sat Jul 25 06:14:58 1992  Tom Wood  ([email protected])
        !          5625: 
        !          5626:        * expmed.c (expand_divmod): Eliminate the generation of branches
        !          5627:        when possible.
        !          5628: 
        !          5629: Sat Jul 25 04:34:09 1992  Richard Stallman  ([email protected])
        !          5630: 
        !          5631:        * fixincludes (X11/Xmu/Xmu.h): Fix this or X11/Xmu.h,
        !          5632:        whichever exists.
        !          5633: 
        !          5634: Sat Jul 25 00:41:12 1992  Paul Eggert  ([email protected])
        !          5635: 
        !          5636:        * c-parse.y (datadecl): Diagnose empty declarations in old-style
        !          5637:        function headers.
        !          5638:        * c-decl.c (shadow_tag_warned): New function.
        !          5639: 
        !          5640:        * c-lex.c (yylex): Diagnose `1.0fl'.  Issue just one
        !          5641:        diagnostic for `1e1000000f'.
        !          5642: 
        !          5643: Fri Jul 24 19:25:51 1992  Richard Stallman  ([email protected])
        !          5644: 
        !          5645:        * dbxout.c (dbxout_symbol): Distinguish implicit C++ typedefs
        !          5646:        from explicit C typedefs for structs, using DECL_SOURCE_LINE.
        !          5647: 
        !          5648:        * c-decl.c (duplicate_decls): Use TYPE_MAIN_VARIANT even for compares
        !          5649:        with void_type_node.
        !          5650:        (grokdeclarator, get_parm_info, store_parm_decls): Likewise.
        !          5651: 
        !          5652: Fri Jul 24 10:07:13 PDT 1992  Ron Guilmette (rfg at ncd.com)
        !          5653: 
        !          5654:        * dwarfout.c (is_tagged_type):  New function added.
        !          5655:        (member_attribute):  Use it.
        !          5656:        (type_ok_for_scope):  Rewritten to eliminate serious bugs.
        !          5657:        (output_type):  Call `output_pending_types_for_scope' at the end of
        !          5658:        struct/union types (which are themselves scopes in C++).
        !          5659: 
        !          5660: Fri Jul 24 13:36:46 1992  Michael Meissner  ([email protected])
        !          5661: 
        !          5662:        * dbxout.c (toplevel): Include defaults.h to get the definition of
        !          5663:        ASM_STABD_OP.
        !          5664: 
        !          5665:        * Makefile.in (dbxout.o): Add defaults.h dependent.
        !          5666: 
        !          5667:        * i386rose.h (CC1_SPEC): Remove MIPS switches accidently left in.
        !          5668: 
        !          5669: Thu Jul 23 09:49:43 PDT 1992  Ron Guilmette  (rfg at ncd.com)
        !          5670: 
        !          5671:        * dwarfout.c (is_body_block):  Rewritten for greater saftey.
        !          5672:        (output_block):  Fixed to deal correctly with non-inlined blocks.
        !          5673: 
        !          5674: Thu Jul 23 15:37:23 1992  Jeffrey A Law  (law at schirf.cs.utah.edu)
        !          5675: 
        !          5676:        * flow.c (propagate_block): Change "struct foo" to "struct sometimes".
        !          5677: 
        !          5678: Thu Jul 23 15:10:51 1992  Tom Wood  ([email protected])
        !          5679: 
        !          5680:        * m88k.h (ASM_OUTPUT_CASE_LABEL): Change to readonly section if the
        !          5681:        table contains addresses.
        !          5682:        (JUMP_TABLES_IN_TEXT_SECTION): True by default.
        !          5683: 
        !          5684: Thu Jul 23 13:54:27 1992  Michael Meissner  ([email protected])
        !          5685: 
        !          5686:        * mips.c (large_int): Use HOST_WIDE_INT type to hold INTVAL.
        !          5687:        (gen_int_relational): Ditto.
        !          5688:        (gen_conditonal_branch): Don't emit any insns if the result is
        !          5689:        always false, and emit a normal jump if the result is always true.
        !          5690: 
        !          5691:        * mips.c (mips_move_1word): Count LABEL_REF's as a memory
        !          5692:        reference.  Rework half-pic load of symbols, to not expect movsi
        !          5693:        to have converted the load address into a load, and for CONST's,
        !          5694:        do the addition after the pointer is loaded.
        !          5695: 
        !          5696:        * mips.md (type attribute, movsi3): Eliminate 'pic' attribute,
        !          5697:        just use 'load' instead.
        !          5698:        (fix_truncdfsi2): Make this a define_insn, instead of a
        !          5699:        define_exapnd and an insn, and use match_scratch to allocate the
        !          5700:        two scratch registers.  Adjust length costs, so that they match
        !          5701:        the current code the assembler produces.
        !          5702:        (fix_truncsfsi2): Ditto.
        !          5703:        (movsi): Don't convert load of half-pic addresses and CONST's into
        !          5704:        the real load.  It causes more problems than it solves.  Adjust
        !          5705:        cost of half-pic addresses to be 2, not 4.
        !          5706: 
        !          5707:        * mips-tfile.c (parse_def): Allow spaces in names, since C++
        !          5708:        templates produce things like: #.def SMANIP<long unsigned int>; ...
        !          5709:        (parse_stabs_common): Code from Lisa Repka, to handle symbol +/-
        !          5710:        offset, and to look up things in the external string table, if the
        !          5711:        name is not found in the local string table.
        !          5712: 
        !          5713: Wed Jul 22 13:08:33 1992  Jeffrey A. Law  ([email protected])
        !          5714: 
        !          5715:        * sparc.md (movdf+1): Use new 'T' and 'U' constraints to 
        !          5716:        determine when an ldd or std will have a length of 1, and
        !          5717:        therefore is eligible for use in some delay slots.
        !          5718:        (uncond_branch): New attribute used for unconditional branches.
        !          5719:        All unconditional branch patterns changed.
        !          5720:        (define_delays and delay slot attributes): Do not allow
        !          5721:        uncond_branch instructions in delay slots.  Do not allow fpload or
        !          5722:        fpstore operations in a conditional branch delay slot.  Allow 
        !          5723:        fpload and fpstore in call, unconditional branch, and annuled
        !          5724:        conditional branch delay slots.
        !          5725:        
        !          5726:        * sparc.c (registers_ok_for_ldd_peep, addrs_ok_for_ldd_peep):
        !          5727:        Functions renamed from registers_ok_for_ldd and
        !          5728:        memory_ok_for_ldd respectively.  All callers changed.
        !          5729:        (register_ok_for_ldd): New function to determine if a register is
        !          5730:        a pseudo or the first register in a hard register pair.
        !          5731:        (mem_aligned_8): No longer static.  Return 0 instead of aborting
        !          5732:        when presented an rtx which is not a MEM.
        !          5733:        (eligible_for_epilogue_delay): Use in_uncond_branch_delay since
        !          5734:        this in an unconditional branch.
        !          5735:        
        !          5736:        * sparc.h (EXTRA_CONSTRAINT) Add new 'T' and 'U' constraints
        !          5737:        which check for aligned accesses to memory and register pairs.
        !          5738: 
        !          5739: Wed Jul 22 11:22:37 1992  Michael Meissner  ([email protected])
        !          5740: 
        !          5741:        * mips.h (MIPS_VERSION): Bump meissner version number to 22.
        !          5742:        (extern declarations): Add declarations for asm_file_name,
        !          5743:        call_used_regs, langguage_string, save_argv, version_string,
        !          5744:        mips_{begin,end,expand}_{pro,epi}logue, simple_epilogue_p,
        !          5745:        {address,const_{double,int},general,{,non}immediate}_operand,
        !          5746:        memory_address_p, {{,non}memory,register,scratch}_operand,
        !          5747:        abort_with_insn, debug_rtx, fatal_io_error, get_frame_size,
        !          5748:        offsettable_address_p, output_address, permalloc,
        !          5749:        reg_mentioned_p, abort, atoi, getenv, mktemp, and
        !          5750:        mips_expand_{epi,pro}logue.
        !          5751:        (*_REGNUM): Add in GP_REG_FIRST in case registers are ever
        !          5752:        renumbered.
        !          5753:        (struct mips_frame_info): Add num_gp, num_fp fields.
        !          5754:        (SECONDARY_MEMORY_NEEDED): Define, return 1 unless -mdebugh if
        !          5755:        moving between FP <-> GP registers.
        !          5756: 
        !          5757:        * mips.c (extern declarations): Move most of the declarations to
        !          5758:        mips.h, except for those of type 'rtx' or 'tree', since not all
        !          5759:        files include rtl.h and tree.h.  Add more declarations for gen_xxx
        !          5760:        functions that are now used.
        !          5761:        (reg_or_0_operand): Add default case for switch on enumeration, to
        !          5762:        allow compiling with -Wall.
        !          5763:        (simple_memory_operand): Ditto.
        !          5764:        (mips_count_memory_refs): Ditto.
        !          5765:        (mips_move_1word): Ditto.
        !          5766:        (mips_move_2words): Ditto.
        !          5767:        (mips_address_cost): Ditto.
        !          5768:        (map_test_to_internal_test): Ditto.
        !          5769:        (mips_move_1word): Align asm comments in loading negative ints.
        !          5770:        (mips_move_1word): Use GEN_INT macro to generate CONST_INT's.
        !          5771:        (mips_move_2words): Ditto.
        !          5772:        (gen_int_relational): Ditto.
        !          5773:        (block_move_load_store): Ditto.
        !          5774:        (block_move_loop): Ditto.
        !          5775:        (expand_block_move): Ditto.
        !          5776:        (block_move_load_store): #if 0, not currently used.
        !          5777:        (block_move_sequence): Ditto.
        !          5778:        (compute_frame_size): Fill in num_gp and num_fp fields.
        !          5779:        (simple_prologue_p): Rename from null_prologue.
        !          5780:        (save_restore_insns): New function to emit appropriate save and
        !          5781:        restore operations for prologue/epilogue -- only prologue used at
        !          5782:        present.
        !          5783:        (function_prologue): Move generation of instructions to
        !          5784:        mips_expand_prologue.
        !          5785:        (mips_expand_prologue): Generate appropriate insns for the
        !          5786:        prologue of the function.
        !          5787:        (mips_expand_epilogue): Generate appropriate insns for the
        !          5788:        epilogue of the function -- not called at present.
        !          5789: 
        !          5790:        * mips.md (ashldi3_internal): Add `&' constraint to operand 0.
        !          5791:        (ashrdi3_internal): Add `&' constraint to operand 0.
        !          5792:        (return): Turn this into a define expand that wraps a return and a
        !          5793:        USE reg:31 inside of a parallel.
        !          5794:        (return_internal): Insn form of return instruction.
        !          5795:        (prologue): New define expand to generate the necessary
        !          5796:        instructions for the function prologue.
        !          5797:        (mov{si,hi,qi}): Split the integer move INSNs into two groups,
        !          5798:        those that support -mdebugh and allow ints to be in floating
        !          5799:        point registers, and those that don't allow it.
        !          5800: 
        !          5801: Tue Jul 21 21:27:43 1992  Mike Stump  ([email protected])
        !          5802: 
        !          5803:        * Complete 9th Cygnus <---> FSF merge.
        !          5804: 
        !          5805:        Tue Jul 21 03:17:05 1992  Mark Eichin  ([email protected])
        !          5806: 
        !          5807:        * cp-lex.c (process_next_inline): when bailing out on a parse error,
        !          5808:        throw away nextchar as well in case it got set. 
        !          5809: 
        !          5810:        Tue Jul 21 05:31:10 1992  Ken Raeburn  ([email protected])
        !          5811: 
        !          5812:        * cp-pt.c (tsubst, case FUNCTION_DECL): If the context class has a
        !          5813:        null method vector, don't look inside it for its size.
        !          5814: 
        !          5815:        Thu Jul 16 16:02:55 1992  Per Bothner  ([email protected])
        !          5816: 
        !          5817:        * cp-typeck.c (convert_for_assignment):  If assigning (void*)
        !          5818:        to a normal pointer, emit a warning, not an error.  There is
        !          5819:        a lot of existing code (including libg++ and converted C
        !          5820:        code) that expects to be able to assign from (void*).
        !          5821: 
        !          5822:        Tue Jul 14 06:59:38 1992  Michael Tiemann  ([email protected])
        !          5823: 
        !          5824:        * cp-decl.c (finish_function): Call destructors correctly when
        !          5825:        baseclasses are replicated in the inheritance hierarchy.
        !          5826: 
        !          5827:        Mon Jul 13 05:16:10 1992  Michael Tiemann  ([email protected])
        !          5828: 
        !          5829:        * cp-typeck.c (build_modify_expr): If we split a COND_EXPR in order
        !          5830:        to perform the assignment in each arm, convert the rhs of each
        !          5831:        branch according to RESULT_TYPE.
        !          5832: 
        !          5833:        * cp-typeck.c (convert_for_assignment): Treat null_pointer_node
        !          5834:        specially when converting to non-void pointers.
        !          5835: 
        !          5836:        * cp-class.c (modify_vtable_entries): In the loop that modifies
        !          5837:        vtable entries for each non-virtual baseclass, correctly handle
        !          5838:        cases where BASE is an ambiguous baseclass for BASE_CONTEXT.
        !          5839: 
        !          5840:        Sun Jul 12 01:32:31 1992  Mike Stump  ([email protected])
        !          5841: 
        !          5842:        Wed May 27 01:33:24 1992  Ron Guilmette  (rfg at ncd.com)
        !          5843: 
        !          5844:        * cp-type2.c (store_init_value), cp-typeck.c
        !          5845:        (build_modify_expr, convert_arguments,
        !          5846:        build_binary_op_nodefault, convert_for_assignment), cp-parse.y
        !          5847:        (member_init, template_def, datadef, stmt): changed some
        !          5848:        pedantics into !traditionals and reworded error messages.
        !          5849: 
        !          5850:        Sun Jul 12 01:11:53 1992  Mike Stump  ([email protected])
        !          5851: 
        !          5852:        Jul 1992  Ron Guilmette  (rfg at ncd.com)
        !          5853: 
        !          5854:        * cp-decl.c (finish_function): Set BLOCK_SUPERCONTEXT for the
        !          5855:        outermost scopes of functions to point to the associated
        !          5856:        FUNCTION_DECL nodes.
        !          5857: 
        !          5858:        Fri Jul 10 17:52:36 1992  Ken Raeburn  ([email protected])
        !          5859: 
        !          5860:        * cp-decl.c (struct binding_level): New field pseudo_global
        !          5861:        indicates that this binding level should be treated like the global
        !          5862:        binding level in some respects.
        !          5863:        (declare_pseudo_global_level, pseudo_global_level_p): Set and test
        !          5864:        routines.
        !          5865:        (push_overloaded_decl): Don't forget overloads in pseudo-global
        !          5866:        binding levels.
        !          5867:        * cp-pt.c (tsubst, case FUNCTION_DECL): Search for an existing decl
        !          5868:        before creating a new one.
        !          5869:        (overload_template_name): Make new level pseudo-global.
        !          5870:        (type_unification): Indicate failure for unknown_type_node.
        !          5871:        (unify): Likewise.
        !          5872: 
        !          5873:        Wed Jul  8 01:59:03 1992  Mike Stump  ([email protected])
        !          5874: 
        !          5875:        * cp-decl.c (lookup_name, grokvardecl, grokdeclarator),
        !          5876:        cp-call.c (build_field_call), cp-seach.c (lookup_field),
        !          5877:        cp-typeck.c (build_component_ref), cp-lex.c (do_identifier),
        !          5878:        cp-init.c (expand_member_init, build_member_call,
        !          5879:        build_offset_ref):  lookup_field now has 4 arguments.
        !          5880: 
        !          5881:        Wed Jul  8 01:14:43 1992  Mike Stump  ([email protected])
        !          5882: 
        !          5883:        * cp-parse.y (primary): Call to lookup_name needs 2 arguments.
        !          5884: 
        !          5885:        Tue Jul  7 21:14:05 1992  Mike Stump  ([email protected])
        !          5886: 
        !          5887:        * cp-method.c (build_overload_name): Handle INTEGER_TYPEs
        !          5888:        cleanly and uniformly.  
        !          5889: 
        !          5890:        Tue Jul  7 09:19:52 1992  Michael Tiemann  ([email protected])
        !          5891: 
        !          5892:        * cp-call.c (build_method_call): If `convert_to_pointer' returns
        !          5893:        error_mark_node, return that without doing any more work.
        !          5894: 
        !          5895:        Thu Jul  2 15:42:28 1992  Mike Stump  ([email protected])
        !          5896: 
        !          5897:        Thu Jul  2 18:08:42 1992  Chip Salzenberg  (chip at tct.com)
        !          5898: 
        !          5899:        * cp-typeck.c (convert_arguments): Don't assume that error
        !          5900:        message will be short enough for fixed-length buffer.
        !          5901: 
        !          5902:        Wed Jul  1 19:52:59 1992  Mike Stump  (mrs at cygnus.com)
        !          5903: 
        !          5904:        Wed Jun  3 12:57:57 1992  Brendan Kehoe  ([email protected])
        !          5905: 
        !          5906:        * cp-decl2.c (grokbitfield): Only do width checking on properly
        !          5907:        parsed bitfields.
        !          5908: 
        !          5909:        Wed Jul  1 18:58:17 1992  Mike Stump  (mrs at cygnus.com)
        !          5910: 
        !          5911:        Wed May 27 01:33:24 1992  Ron Guilmette  (rfg at ncd.com)
        !          5912: 
        !          5913:        * cp-lex.c (readescape), cp-parse.y (unary_expr, maybecomma_warn,
        !          5914:        component_decl_list, stmt), cp-type2.c (digest_init), cp-typeck.c
        !          5915:        (c_sizeof, build_function_call_real, convert_arguments,
        !          5916:        build_binary_op_nodefault, pointer_int_sum, pointer_diff,
        !          5917:        build_unary_op, c_expand_return): change some warnings to
        !          5918:        pedwarns.  Put in new pedwarns, change wording of messages so that
        !          5919:        they are more readable.  Don't issue some warnings when
        !          5920:        traditional is given.
        !          5921: 
        !          5922:        Wed Jul  1 13:56:30 1992  Mike Stump  (mrs at cygnus.com)
        !          5923: 
        !          5924:        Wed Apr 29 23:37:00 1992  Niklas Hallqvist  (niklas at appli.se)
        !          5925: 
        !          5926:        * cp-decl.c (finish_decl): make sure destructors are called for
        !          5927:        objects in a file.
        !          5928: 
        !          5929:        Wed Jul  1 11:12:05 1992  Mike Stump  (mrs at cygnus.com)
        !          5930: 
        !          5931:        * cp-lex.c: extract YYEMPTY out of the parser generated .c
        !          5932:        file and put in the parser .h so that cp-lex.c does not have
        !          5933:        to define it.
        !          5934: 
        !          5935:        Mon Jun 29 12:58:59 1992  Mike Stump  (mrs at cygnus.com)
        !          5936: 
        !          5937:        Mon Jun 29 15:20:48 1992  Chip Salzenberg  (chip at tct.com)
        !          5938: 
        !          5939:        * cp-cvt.c (convert_to_integer): Don't add a NOP_EXPR in cases
        !          5940:        where we can simply change the type of the entire tree.
        !          5941: 
        !          5942:        Mon Jun 29 10:56:56 1992  Mike Stump  (mrs at cygnus.com)
        !          5943: 
        !          5944:        * c++: Makes sure -lg++ comes before -lm since libg++ uses
        !          5945:        things from libm.
        !          5946: 
        !          5947:        Mon Jun 22 13:47:42 1992  Mike Stump  (mrs at cygnus.com)
        !          5948: 
        !          5949:        Sun Jun 21 14:06:41 1992  Brendan Kehoe  (brendan at cs.widener.edu)
        !          5950: 
        !          5951:        * cp-typeck.c (convert_for_initialization): Only try to convert a
        !          5952:        rhs that was parsed properly.
        !          5953: 
        !          5954:        Mon Jun 22 13:31:40 1992  Jim Wilson  (wilson at sphagnum.cygnus.com)
        !          5955: 
        !          5956:        * cp-parse.y (primary): Clear the TREE_USED flag of a block tree
        !          5957:        put in a BIND_EXPR.
        !          5958: 
        !          5959:        Sun Jun 21 09:59:58 1992  Michael Tiemann  (tiemann at rtl.cygnus.com)
        !          5960: 
        !          5961:        * cp-type2.c (build_scoped_ref): Use SCRATCH for head of typelist,
        !          5962:        rather than calling alloca.
        !          5963: 
        !          5964:        Fri Jun 19 16:23:02 1992  Mike Stump  (mrs at cygnus.com)
        !          5965: 
        !          5966:        * cp-pt.c (unify): Type unification of things that do not have a
        !          5967:        valid IDENTIFIER_TEMPLATE fail instead of core dumping. 
        !          5968: 
        !          5969:        Wed Jun 17 13:36:04 1992  Michael Tiemann  (tiemann at rtl.cygnus.com)
        !          5970: 
        !          5971:        * cp-pt.c (tsubst): Don't try to substitute into error_mark_node.
        !          5972: 
        !          5973:        * cp-decl.c (grokparms): Convert initializers that have
        !          5974:        TREE_READONLY_DECL_P set into their constant equivalents.
        !          5975: 
        !          5976:        Tue Jun 16 19:09:23 1992  Mike Stump  (mrs at cygnus.com)
        !          5977: 
        !          5978:        Wed Jun  3 12:57:57 1992  Brendan Kehoe  (brendan at cs.widener.edu)
        !          5979: 
        !          5980:        * cp-decl.c (grokdeclarator): Disallow virtual functions in unions.
        !          5981: 
        !          5982:        Tue Jun 16 18:11:45 1992  Mike Stump  (mrs at cygnus.com)
        !          5983: 
        !          5984:        Wed Jun  3 12:57:57 1992  Brendan Kehoe  (brendan at cs.widener.edu)
        !          5985: 
        !          5986:        * cp-class.c (finish_struct): Forbid local classes to have static
        !          5987:        members.
        !          5988: 
        !          5989:        Mon Jun 15 21:44:08 1992  Mike Stump  (mrs at cygnus.com)
        !          5990: 
        !          5991:        Tue Jun  2 09:26:34 1992  Brendan Kehoe  (brendan at cs.widener.edu)
        !          5992: 
        !          5993:        * cp-init.c (build_new): Don't allow the use of new on a reference.
        !          5994: 
        !          5995:        Mon Jun 15 20:52:08 1992  Mike Stump  (mrs at cygnus.com)
        !          5996: 
        !          5997:        Tue Jun  2 09:26:34 1992  Brendan Kehoe  (brendan at cs.widener.edu)
        !          5998: 
        !          5999:        * cp-decl.c (grokparms): Don't allow a local variable to be used
        !          6000:        in a default argument expression.
        !          6001: 
        !          6002:        Mon Jun 15 18:54:28 1992  Mike Stump  (mrs at cygnus.com)
        !          6003: 
        !          6004:        * cp-decl.c (finish_decl): Add an error message for uninitialized
        !          6005:        const objects like const int a;.
        !          6006: 
        !          6007:        Mon Jun 15 16:05:22 1992  Mike Stump  (mrs at cygnus.com)
        !          6008: 
        !          6009:        Not sure if it is strictly necessary for the C++ front end, but...
        !          6010: 
        !          6011:        Sun May 31 15:31:46 1992  Brendan Kehoe  (brendan at cs.widener.edu)
        !          6012: 
        !          6013:        * cp-typeck.c (self_promoting_args_p): Allow the arg type to be
        !          6014:        null (copied from Oct 16, 1991 change by Wood).
        !          6015: 
        !          6016:        Fri Jun 12 16:42:05 1992  Mike Stump  (mrs at cygnus.com)
        !          6017: 
        !          6018:        * cp-typeck.c (build_binary_op_nodefault): Conditionalize code that 
        !          6019:        deals with the comparison of non-distinct object types, thus avoiding
        !          6020:        a core dump.
        !          6021: 
        !          6022:        Fri Jun 12 10:23:17 1992  Mike Stump  (mrs at cygnus.com)
        !          6023: 
        !          6024:        Wed Jun 10 19:20:29 1992  Brendan Kehoe  (brendan at cs.widener.edu)
        !          6025: 
        !          6026:        * cp-tree.c (break_out_calls): Begin at 1 less than the length of
        !          6027:        the length of the tree code, not the length itself, for generic
        !          6028:        expressions and those with side-effects.
        !          6029: 
        !          6030:        Thu Jun 11 17:43:55 1992  Mike Stump  (mrs at cygnus.com)
        !          6031: 
        !          6032:        * cp-init.c (expand_default_init): New function to handle the
        !          6033:        details of default copy constructors and other magic in one place.
        !          6034: 
        !          6035:        * cp-init.c (expand_aggr_init_1): Implement default constructors
        !          6036:        more fully.
        !          6037: 
        !          6038:        Thu Jun 11 17:16:54 1992  Mike Stump  (mrs at cygnus.com)
        !          6039: 
        !          6040:        * cp-call.c (build_method_call): Don't produce an error message if
        !          6041:        we are looking up things speculatively.
        !          6042: 
        !          6043:        Thu Jun 11 10:58:47 1992  Mike Stump  (mrs at cygnus.com)
        !          6044: 
        !          6045:        * cp-call.c (convert_harshness): Penalize const arguments passed
        !          6046:        into non-const parameters.
        !          6047: 
        !          6048:        Thu Jun 11 10:02:52 1992  Mike Stump  (mrs at cygnus.com)
        !          6049: 
        !          6050:        * cp-typeck.c (build_c_cast): Implement more reference casts so
        !          6051:        that one can cast a base reference to a derived reference.
        !          6052: 
        !          6053: Tue Jul 21 15:28:36 1992  Jim Wilson  ([email protected])
        !          6054: 
        !          6055:        * sparc.h (SECONDARY_MEMORY_NEEDED): Define to force reload to 
        !          6056:        handle any copy between GENERAL_REGS and FP_REGS.  
        !          6057: 
        !          6058:        * sched.c (schedule_block): Give some insns high priorities,
        !          6059:        instead of excluding them from scheduling, to ensure that they end
        !          6060:        up at the end of the block after scheduling.
        !          6061: 
        !          6062:        * i960.c (i960_output_ldconst): Use REAL_VALUE_FROM_CONST_DOUBLE
        !          6063:        instead of pointer indirection to extract double from CONST_DOUBLE.
        !          6064: 
        !          6065: Tue Jul 21 14:05:34 1992  Richard Stallman  ([email protected])
        !          6066: 
        !          6067:        * svr4.h (HANDLE_SYSV_PRAGMA): Defined.
        !          6068: 
        !          6069:        * sol-crt*.asm: Renamed from sol-crt*.s, and put in config.
        !          6070:        * t-sol2 (crt*.o): Changed accordingly.  Also use $(AS).
        !          6071: 
        !          6072:        * gbl-ctors.h (ON_EXIT): Test HAVE_ATEXIT before sun.
        !          6073: 
        !          6074: Mon Jul 20 18:56:02 1992  Fred Fish  (fnf at fishpond)
        !          6075: 
        !          6076:        * svr4.h (ASM_OUTPUT_BEFORE_CASE_LABEL): New macro--default definition.
        !          6077:        (ASM_OUTPUT_CASE_LABEL): Use that.
        !          6078:        * m68ksgs.h (ASM_OUTPUT_BEFORE_CASE_LABEL): Do the swbeg here.
        !          6079:        (ASM_OUTPUT_CASE_LABEL): Use that.
        !          6080: 
        !          6081:        * configure (m68k-*-amix*):  Use fixinc.svr4 and install.sh.
        !          6082: 
        !          6083:        * x-amix (ENQUIRE_CFLAGS):  Remove; obsolete.
        !          6084: 
        !          6085:        * amix.h (TRANSFER_FROM_TRAMPOLINE):  Remove #undef.
        !          6086: 
        !          6087: Mon Jul 20 17:45:46 1992  Richard Stallman  ([email protected])
        !          6088: 
        !          6089:        * dbxout.c (dbxout_source_line): New function.
        !          6090:        * final.c (output_source_line): Use that.
        !          6091: 
        !          6092:        * configure (sparc-*-sunos5*): New alias.
        !          6093:        (sparc-*-solaris2*): Use t-sol2.
        !          6094: 
        !          6095:        * i860.md (mulsi3_little, mulsi3_big): New define_expand patterns.
        !          6096:        (mulsi3): Just use one of them.
        !          6097: 
        !          6098:        * Makefile.in (install-fixincludes): Pass second and third args.
        !          6099: 
        !          6100: Mon Jul 20 16:07:12 1992  Pat Rankin  ([email protected])
        !          6101: 
        !          6102:        * vms.h (MAYBE_VMS_FUNCTION_PROLOGUE): change _c$main_args to
        !          6103:        uppercase instead of relying on gas to make the case translation
        !          6104: 
        !          6105: Sun Jul 19 00:04:16 1992  Richard Stallman  ([email protected])
        !          6106: 
        !          6107:        * c-tree.h (C_PROMOTING_INTEGER_TYPE_P): New macro.
        !          6108:        * c-decl.c (duplicate_decls, grokdeclarator, finish_struct): 
        !          6109:        Use C_PROMOTING_INTEGER_TYPE_P to decide whether a type promotes.
        !          6110:        (start_function): Likewise.
        !          6111:        * c-typeck.c (default_conversion): Use C_PROMOTING_INTEGER_TYPE_P
        !          6112:        to decide whether a type should promote.
        !          6113:        (self_promoting_args_p, self_promoting_type_p): Likewise.
        !          6114: 
        !          6115:        * c-aux-info.c (gen_type): For array type, state the size.
        !          6116: 
        !          6117:        * final.c (output_addr_const): Handle ZERO_EXTEND and SIGN_EXTEND.
        !          6118:        * expr.c (expand_expr, NOP_EXPR case): If EXPAND_INITIALIZER,
        !          6119:        generate ZERO_EXTEND or SIGN_EXTEND; don't emit insns.
        !          6120: 
        !          6121:        * function.c (assign_parms): Use const0_rtx as DECL_RTL and as
        !          6122:        DECL_INCOMING_RTL if tmode of parm is void.
        !          6123: 
        !          6124:        * jump.c (mark_jump_label): Don't make REG_LABEL for nonlocal label.
        !          6125:        * loop.c (add_label_notes): Don't make REG_LABEL for nonlocal label.
        !          6126:        (rtx_renumbered_equal_p): Use == to compare nonlocal labels.
        !          6127: 
        !          6128:        * rtl.h (LABEL_REF_NONLOCAL_P): New macro.
        !          6129:        * expr.c (expand_expr): Set LABEL_REF_NONLOCAL_P for nonlocal labels.
        !          6130:        * reload1.c (set_label_offsets): Ignore nonlocal labels.
        !          6131: 
        !          6132:        * c-parse.y (primary): Set TREE_CONSTANT in the NOP_EXPR for an enum.
        !          6133: 
        !          6134:        * Solaris changes from Cygnus:
        !          6135: 
        !          6136:        * fixinc.svr4: take a third argument indicating where files to be
        !          6137:        copied in should come from (useful when not building in source
        !          6138:        directory).  
        !          6139:        Set TERM to dumb so ex won't hang (by zoo).
        !          6140:        * fixincludes: Take the same new argument.
        !          6141: 
        !          6142:        * gmon-sol2.c: New file.
        !          6143:        * t-sol2: New file.
        !          6144:        * sol2-crt1.s, sol2-crti.s, sol2-crtn.s: New files.
        !          6145: 
        !          6146:        * xm-spcv4.h (ONLY_INT_FIELDS): Define, if __GNUC__.
        !          6147: 
        !          6148:        * sparc.h (FUNCTION_PROFILER):  Use ASM_OUTPUT_INTERNAL_LABELREF.
        !          6149:        (FUNCTION_BLOCK_PROFILER):  Mark with FIXME that it needs work.
        !          6150:        (ASM_OUTPUT_INTERNAL_LABELREF):  Define.
        !          6151:        * spc-sol2.h: Entire file is new except for
        !          6152:        defining MD_STARTFILE_PREFIX.
        !          6153:        * dbxout.c (dbxout_block): obey DBX_BLOCKS_FUNCTION_RELATIVE
        !          6154:        (dbxout_init):  Use ASM_IDENTIFY_GCC_AFTER_SOURCE if defined.
        !          6155: 
        !          6156:        * sparc.h (CONSTANT_ALIGNMENT): Add parens for Sun compiler.
        !          6157: 
        !          6158: Sun Jul 19 11:03:56 1992  Fred Fish  (fnf at fishpond)
        !          6159: 
        !          6160:        * i386v4.h (real.h): Remove apparently unnecessary inclusion.
        !          6161:        * i386v4.h (HANDLE_SYSV_PRAGMA):  Replaces HANDLE_PRAGMA.
        !          6162: 
        !          6163: Sat Jul 18 20:37:37 1992  Richard Stallman  ([email protected])
        !          6164: 
        !          6165:        * c-typeck.c (build_binary_op): Don't set shorten for signed division.
        !          6166: 
        !          6167:        * final.c (end_final): Align the table of addresses.
        !          6168: 
        !          6169: Fri Jul 17 23:49:28 1992  Richard Stallman  ([email protected])
        !          6170: 
        !          6171:        * cexp.y: Include stdio.h.
        !          6172: 
        !          6173: Fri Jul 17 06:17:34 1992  Tom Wood  ([email protected])
        !          6174: 
        !          6175:        * cp-tree.h (DECL_THIS_EXTERN): Renamed from DECL_EXTERNAL.
        !          6176:        * cp-pt.c, cp-decl.c: Rename DECL_EXTERNAL -> DECL_THIS_EXTERN and
        !          6177:        then rename TREE_EXTERNAL -> DECL_EXTERNAL.
        !          6178: 
        !          6179: Fri Jul 17 05:59:26 1992  Richard Kenner  ([email protected])
        !          6180: 
        !          6181:        * function.c (instantiate_decls{,_1}): Don't do instantiation
        !          6182:        here if the address is mode-dependent.
        !          6183: 
        !          6184:        * libgcc2.c: Include tconfig.h instead of tm.h.
        !          6185:        Include machmode.h.
        !          6186:        (__do_global_dtors): Cast to widest integer type, then narrow, to
        !          6187:        avoid warning if int is narrower than pointer.
        !          6188:        * Makefile.in (libgcc2.a): Includes machmode.h.
        !          6189: 
        !          6190:        * cse.c (cse_insn): Allow paradoxical SUBREGs in the table.
        !          6191: 
        !          6192:        * reload.c (secondary_memlocs{,_elim}): New variables.
        !          6193:        (get_secondary_mem, clear_secondary_mem): New function.
        !          6194:        (push_reload):  Convert SUBREG of hard reg to new hard reg.
        !          6195:        Call get_secondary_mem when needed.
        !          6196:        (find_reloads): Clear secondary_memloc_elim for each insn.
        !          6197:        * reload1.c (reload): If SECONDARY_MEMORY_NEEDED, check for frame
        !          6198:        size changed.
        !          6199:        Call clear_secondary_mem.
        !          6200:        (emit_reload_insns, gen_input_reload): Use memory when required to
        !          6201:        do reload.
        !          6202:        * reload.h (get_secondary_mem): Declare.
        !          6203: 
        !          6204:        * cccp.c (NULL_PTR): Define as void * if STDC.
        !          6205: 
        !          6206:        * rs6000.md (negdi2): Corrected name; used to be negdi3.
        !          6207: 
        !          6208:        * combine.c (subst, case SET): Put code to move SUBREG after
        !          6209:        code that calls make_compound_operation.
        !          6210:        (make_extraction): Don't check for INNER a REG except for in dest.
        !          6211:        Fix typo checking for REG.
        !          6212:        (make_compound_operation): Get the result in the same mode it
        !          6213:        used to be.
        !          6214: 
        !          6215:        * reload.c (push_reload): If a SUBREG requires a secondary reload
        !          6216:        but the inner expression doesn't, reload the inner expression
        !          6217:        instead.
        !          6218: 
        !          6219: Fri Jul 17 02:20:51 1992  Richard Stallman  ([email protected])
        !          6220: 
        !          6221:        * gcc.c (process_command): Handle `-Wl,' and `-Wa,'.
        !          6222:        (do_spec_1): Handle %Y.
        !          6223:        (default_compilers): Use %Y in assembler commands.
        !          6224: 
        !          6225:        * function.c (assign_parms): In last change, test mode in parm type.
        !          6226: 
        !          6227: Thu Jul 16 15:03:25 1992  Richard Stallman  ([email protected])
        !          6228: 
        !          6229:        * loop.c (find_and_verify_loops): Ignore jumps to missing labels,
        !          6230:        when using P.
        !          6231: 
        !          6232:        * c-typeck.c (build_binary_op): Improve shift warning messages.
        !          6233: 
        !          6234:        * x-dpx2 (AS): Use $(GAS).
        !          6235:        (GAS): New variable.
        !          6236: 
        !          6237:        * mot3300.h (ASM_OUTPUT_CASE_END): Deleted.
        !          6238: 
        !          6239:        * function.c (assign_parms): If arg was passed by invisible
        !          6240:        reference, copy it to a pseudo if appropriate.
        !          6241: 
        !          6242:        * dwarfout.c (pure_or_virtual_attribute):
        !          6243:        Add #if 0 around use of DECL_ABSTRACT_VIRTUAL_P.
        !          6244: 
        !          6245: Wed Jul 15 16:29:05 PDT 1992  Ron Guilmette  (rfg at ncd.com)
        !          6246: 
        !          6247:        * dwarfout.c (BLOCK_INLINE_FUNCTION):  Obsolete definition deleted.
        !          6248:        (block_ultimate_origin):  New function.
        !          6249:        (output_block):
        !          6250:        Local var `have_significant_locals' renamed to `must_output_die'.
        !          6251:        (output_block):  Rewritten to handle abstract & concrete instances of
        !          6252:        blocks of inline functions.
        !          6253:        (output_decls_for_scope):
        !          6254:        Don't bump `next_block_number' for abstract blocks.
        !          6255: 
        !          6256:        * toplev.c (rest_of_compilation): Call `dwarfout_file_scope_decl' for
        !          6257:        both types of "abstract" instances of inline functions.
        !          6258: 
        !          6259:        * tree.def (BLOCK):  Use new tree code category letter 'b' for BLOCKs.
        !          6260:        * tree.h (struct tree_block):  New struct type definition added.
        !          6261:        (BLOCK_VARS, BLOCK_TYPE_TAGS, BLOCK_SUBBLOCKS, BLOCK_HANDLER_BLOCK):
        !          6262:        Changed to reference fields of the new `struct tree_block' type.
        !          6263:        (BLOCK_ABSTRACT_ORIGIN, BLOCK_ABSTRACT):  Definitions added.
        !          6264:        (union tree_node):  Added `struct tree_block' as a new variant.
        !          6265:        * tree.c (typedef tree_node_kind):  Added new kind, i.e. `b_kind'.
        !          6266:        (tree_node_kind_names):  Added string name for new kind `b_kind'.
        !          6267:        (make_node, copy_node, stabilize_reference_1):
        !          6268:        Handle case 'b' (for BLOCK nodes).
        !          6269:        (make_node):  Don't try to deal with BLOCKs when doing a type 'e' node.
        !          6270:        * print-tree.c (print_node):
        !          6271:        Handle type 'b'; delete code for BLOCK from 'e' case.
        !          6272:        Handle fields BLOCK_ABSTRACT_ORIGIN and BLOCK_ABSTRACT.
        !          6273:        * calls.c (calls_alloca):  Don't return 0 automatically if the expr
        !          6274:        given is headed by a type 'b' node.
        !          6275:        * cp-tree.c (break_out_calls):  Add case for decl nodes.
        !          6276:        Added case to catch BLOCK nodes (and to abort).
        !          6277:        * integrate.c (copy_decl_tree):  Set BLOCK_ABSTRACT_ORIGIN in new
        !          6278:        instance block if not already set.
        !          6279:        (expand_inline_function): Set BLOCK_ABSTRACT_ORIGIN for outermost
        !          6280:        scope to point to progenitor (abstract inline) FUNCTION_DECL node.
        !          6281:        (integrate_decl_tree):  Set BLOCK_ABSTRACT_ORIGIN for inlined instance
        !          6282:        BLOCKs.
        !          6283:        (set_block_origin_self, set_decl_origin_self, set_block_abstract_flags,
        !          6284:        set_decl_abstract_flags):  New functions.
        !          6285:        (output_inline_function):  Call `set_decl_origin_self' for each fndecl
        !          6286:        which is about to have an out-of-line instance generated for it.
        !          6287: 
        !          6288: Wed Jul 15 15:08:00 1992  Richard Stallman  ([email protected])
        !          6289: 
        !          6290:        * c-convert.c (convert_to_integer): Push truncation inside COND_EXPR.
        !          6291: 
        !          6292:        * optabs.c (emit_cmp_insn): Always do protect_from_queue on x, y, size.
        !          6293:        (expand_float, expand_fix): Likewise.
        !          6294:        * expmed.c (expand_shift, expand_set_flag):
        !          6295:        Call protect_from_queue before convert_to_mode.
        !          6296:        * expr.c (convert_move): Don't call protect_from_queue.
        !          6297:        (emit_block_move): Protect SIZE.
        !          6298: 
        !          6299:        * explow.c (allocate_dynamic_stack_space) [SETJMP_VIA_SAVE_AREA]:
        !          6300:        Always call round_push; we can't rely on alignment of size.
        !          6301: 
        !          6302: Wed Jul 15 06:47:11 1992  Richard Kenner  ([email protected])
        !          6303: 
        !          6304:        * combine.c (try_combine): Verify that I2DEST is a register before
        !          6305:        trying to change its mode.
        !          6306: 
        !          6307: Tue Jul 14 15:13:28 1992  Jim Wilson  ([email protected])
        !          6308: 
        !          6309:        * c-decl.c (finish_struct): Handle nested struct redefinitions.
        !          6310:        * stor-layout.c (layout_record): Handle NULL dsize.
        !          6311: 
        !          6312: Tue Jul 14 21:31:51 1992  Richard Stallman  ([email protected])
        !          6313: 
        !          6314:        * c-decl.c (duplicate_decls, pushdecl, grokdeclarator): 
        !          6315:        (store_parm_decls, combine_parm_decls, finish_function):
        !          6316:        Use TYPE_MAIN_VARIANT when comparing against specific non-void types.
        !          6317:        * c-typeck.c (self_promoting_args_p, self_promoting_type_p):
        !          6318:        (signed_type, unsigned_type, default_conversion, check_format):
        !          6319:        (build_binary_op, c_expand_start_case): Likewise.
        !          6320: 
        !          6321: Mon Jul 13 14:57:34 1992  Richard Stallman  ([email protected])
        !          6322: 
        !          6323:        * c-decl.c (finish_function): Fix braino validating ret type of main.
        !          6324: 
        !          6325:        * expr.c (expand_builtin): Refer to errno at rtl level only.
        !          6326:        * sparc.h (TARGET_EDOM, GEN_ERRNO_RTX): New macros.
        !          6327: 
        !          6328: Mon Jul 13 06:35:53 1992  Paul Eggert  ([email protected])
        !          6329: 
        !          6330:        * expr.c (expand_builtin):
        !          6331:        For fsqrt, always use the special insn, then test for nan.
        !          6332: 
        !          6333: Mon Jul 13 08:45:34 1992  Tom Wood  ([email protected])
        !          6334: 
        !          6335:        * m88k.md: Constraint fixes from Torbjorn.
        !          6336: 
        !          6337:        * jump.c (jump_optimize): In `x = a; if (...) x = b;' allow both a
        !          6338:        and b to be non-zero if jumps are very expensive.  Also allow a
        !          6339:        and b to be constants where all the set bits in a are also set in
        !          6340:        b when jumps are merely expensive.
        !          6341: 
        !          6342: Sun Jul 12 17:43:03 1992  Richard Kenner  ([email protected])
        !          6343: 
        !          6344:        * genpeep.c (match_rtx): Sometimes use %ld when printing an XWINT.
        !          6345: 
        !          6346:        * regclass.c (record_reg_classes): If OP is a REG, use it's mode
        !          6347:        in case the mode in MATCH_OPERAND is VOIDmode.
        !          6348: 
        !          6349: Sun Jul 12 13:03:54 1992  Richard Stallman  ([email protected])
        !          6350: 
        !          6351:        * fixincludes: Replace the code that finds all directories
        !          6352:        so that it looks for subdirs of dir reached via symlinks.
        !          6353: 
        !          6354:        * cp-tree.h (IDENTIFIER_VIRTUAL_P): Macro moved here.
        !          6355:        * tree.h (IDENTIFIER_VIRTUAL_P): Deleted from here.
        !          6356: 
        !          6357:        * rtl.h (NOTE_BLOCK_NUMBER, SET_NOTE_BLOCK_NUMBER): New macros.
        !          6358:        (NOTE_DECL_NAME, NOTE_DECL_CODE, ...): #if 0'd.
        !          6359:        * function.c (identify_blocks, reorder_blocks): New functions.
        !          6360:        (all_blocks, blocks_nreverse): New functions.
        !          6361: 
        !          6362:        * isi.h: Deleted the #error; file should work now.
        !          6363:        (LIB_SPEC): Use -lg only once.
        !          6364:        (STRUCTURE_SIZE_BOUNDARY): Defined.
        !          6365: 
        !          6366:        * protoize.c (process_aux_info_file): Set must_create before jumping to
        !          6367:        start_over.  Don't clear must_create at start_over.  Don't test
        !          6368:        source file mod time for SYSCALLS.
        !          6369: 
        !          6370:        * machmode.h (GET_MODE_NUNITS): Avoid division by zero.
        !          6371: 
        !          6372: Sat Jul 11 22:21:47 1992  Richard Stallman  ([email protected])
        !          6373: 
        !          6374:        * objc-parse.y (primary): Don't test TREE_EXTERNAL;
        !          6375:        call assemble_external regardless.
        !          6376: 
        !          6377:        * tree.h (DECL_INLINE, DECL_NONLOCAL, DECL_REGISTER, DECL_EXTERNAL):
        !          6378:        Renamed from TREE_INLINE, TREE_NONLOCAL, TREE_REGDECL, TREE_EXTERNAL.
        !          6379:        All uses changed.
        !          6380: 
        !          6381:        * xm-hp320.h (USG): Define it.
        !          6382: 
        !          6383: Sat Jul 11 21:43:56 1992  Michael Meissner  ([email protected])
        !          6384: 
        !          6385:        * mips.h (MIPS_VERSION): Bump meissner version number to 21.
        !          6386: 
        !          6387:        * mips.md (andsi3, iorsi3, xorsi3): Make predicates match the
        !          6388:        actual machine, since combine can now recreate the bitfields, and
        !          6389:        doesn't do multiple logical operations when setting more than one
        !          6390:        bitfield in a word.
        !          6391: 
        !          6392:        * objc-actions.c (xmalloc, free): Don't provide extern decls for
        !          6393:        these, since tree.h and rtl.h both now provide them.
        !          6394: 
        !          6395:        * cp-lex.c (real_yylex): Declare a variable i, since a for loop
        !          6396:        uses it as an index.  Remove an extra '(' from a build_int_2 call.
        !          6397: 
        !          6398: Sat Jul 11 13:13:03 1992  Richard Stallman  ([email protected])
        !          6399: 
        !          6400:        * varasm.c: Get rid of default definitions of ASM_OUTPUT_CONSTRUCTOR
        !          6401:        and ASM_OUTPUT_DESTRUCTOR.
        !          6402: 
        !          6403:        * c-aux-info (affix_data_type): Don't be fooled by names starting
        !          6404:        with `const' or `volatile'.     
        !          6405: 
        !          6406:        * c-typeck.c (digest_init): Deal with nested {...} for scalar.
        !          6407: 
        !          6408:        * loop.c, reload1.c: Include stdio.h before config.h.
        !          6409: 
        !          6410:        * toplev.c (rest_of_compilation): Save and restore DECL_ARGUMENTS.
        !          6411: 
        !          6412: Fri Jul 10 22:42:34 1992  Paul Eggert  ([email protected])
        !          6413: 
        !          6414:        * tree.c (build_real_from_int_cst): Truncate when folding to float.
        !          6415:        (real_value_from_int_cst): Do not treat the topmost bit
        !          6416:        of an unsigned long long value as a sign bit.
        !          6417: 
        !          6418:        * cse.c (simplify_binary_operation): Don't optimize 0.0/x to 0.0
        !          6419:        if IEEE floating point is used, because x might be negative or NaN.
        !          6420: 
        !          6421: Fri Jul 10 15:37:42 1992  Richard Stallman  ([email protected])
        !          6422: 
        !          6423:        * genpeep.c (match_rtx): Handle `w' elts of rtx.
        !          6424: 
        !          6425:        * Makefile.in (INTERNAL_CFLAGS): Add -DIN_GCC.
        !          6426: 
        !          6427: Fri Jul 10 18:56:22 1992  Eric Youngdale ([email protected])
        !          6428: 
        !          6429:        * cccp.c (finclude): Clean error msf if file_size_and_mode fails.
        !          6430: 
        !          6431: Fri Jul 10 13:44:46 1992  Howard Chu  ([email protected])
        !          6432: 
        !          6433:        * fx2800.h (LINK_LIBGCC_SPECIAL): Defined.
        !          6434:        (DBX_OUTPUT_STANDARD_TYPES): Check that DECL_NAME(decl) exists
        !          6435:        before trying to get its IDENTIFIER_POINTER.
        !          6436: 
        !          6437: Thu Jul  9 20:56:01 1992  Per Bothner  ([email protected])
        !          6438: 
        !          6439:        * dbxout.c (dbxout_type_methods):  Fix minimal_debug so
        !          6440:        that it skips a redundant class name prefix, as intended.
        !          6441:        It now expects the length digits that precede the class name.
        !          6442: 
        !          6443: Thu Jul  9 18:23:12 1992  Torbjorn Granlund  ([email protected])
        !          6444: 
        !          6445:        * Makefile.in, libgcc2.c, longlong.h: Rename udiv_using_sdiv to
        !          6446:        udiv_w_sdiv.
        !          6447: 
        !          6448: Thu Jul  9 18:10:40 1992  Richard Stallman  ([email protected])
        !          6449: 
        !          6450:        * tree.h (STRIP_TYPE_NOPS): New macro.
        !          6451:        * c-decl.c (build_enumerator): Use STRIP_TYPE_NOPS.
        !          6452:        * c-typeck.c (default_conversion): Use STRIP_TYPE_NOPS.
        !          6453:        (build_binary_op, build_function_call): Likewise.
        !          6454:        * c-common.c (check_case_value): Use STRIP_TYPE_NOPS.
        !          6455: 
        !          6456:        * mot3300.h (ASM_OUTPUT_CASE_END): New macro.
        !          6457:        * m68k.c (switch_table_difference_label_flag): New variable.
        !          6458: 
        !          6459:        * i860.md (QI and HI bte/btne patterns): Deleted.
        !          6460: 
        !          6461: Thu Jul  9 06:09:20 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          6462: 
        !          6463:        * c-typeck.c (default_conversion): Don't use STRIP_NOPS.
        !          6464: 
        !          6465:        * print-rtl.c: Missing merge from 64-bit changes.
        !          6466:        (print_rtx): Add new case 'w'.
        !          6467: 
        !          6468: Wed Jul  8 14:35:39 1992  Richard Stallman  ([email protected])
        !          6469: 
        !          6470:        * fixincludes, fixinc.svr4: Error if no argument.
        !          6471: 
        !          6472:        * tree.c (integer_zerop, integer_onep, integer_all_onesp):
        !          6473:        (integer_pow2p, real_zerop, real_onep, real_twop): Use STRIP_NOPS.
        !          6474:        * expr.c (do_store_flag): Likewise.
        !          6475:        * varasm.c (output_constructor): Likewise.
        !          6476:        * c-decl.c (finish_struct, build_enumerator): Likewise.
        !          6477:        * c-typeck.c (default_conversion, build_binary_op): Likewise.
        !          6478:        (build_function_call): Likewise.
        !          6479: 
        !          6480:        * integrate.c (integrate_decl_tree): Get rid of arg functionbody;
        !          6481:        it was always 0.
        !          6482: 
        !          6483:        * mot3300.h: Fix typo.
        !          6484: 
        !          6485:        * final.c (leaf_renumber_regs_insn): Handle new 'w' format.
        !          6486: 
        !          6487: Wed Jul  8 15:18:33 PDT 1992  Ron Guilmette  (rfg at ncd.com)
        !          6488: 
        !          6489:        * tree.h (DECL_ABSTRACT_ORIGIN, DECL_ABSTRACT):  Definitions added.
        !          6490:        (struct tree_decl):  New fields `abstract_origin' & `abstract_flag'.
        !          6491:        (struct tree_decl):  Field `from_inline_flag' deleted.
        !          6492:        (DECL_FROM_INLINE):  Definition revised to check DECL_ABSTRACT_ORIGIN.
        !          6493:        * integrate.c (copy_decl_list):  New function added.
        !          6494:        (save_for_inline_copying): Call `copy_decl_list' for formal parameters.
        !          6495:        Set DECL_ABSTRACT_ORIGIN for fndecl to point to itself.
        !          6496:        (copy_decl_tree):  Use `copy_decl_list' rather than just `copy_list'.
        !          6497:        (integrate_parm_decls, integrate_decl_tree):  Set DECL_ABSTRACT_ORIGIN
        !          6498:        to point to the progenitor.
        !          6499:        * print-tree.c (print_node):  Print the value of DECL_ABSTRACT_ORIGIN
        !          6500:        rather than the value of DECL_FROM_INLINE.
        !          6501: 
        !          6502:        * dwarfout.c (output_inlined_enumeration_type_die): New function.
        !          6503:        (output_inlined_structure_type_die, output_inlined_union_type_die):
        !          6504:        New functions added.
        !          6505:        (output_entry_point_die, output_formal_parameter_die,
        !          6506:        output_global_subroutine_die, output_global_variable_die,
        !          6507:        output_label_die, output_lexical_block_die,
        !          6508:        output_inlined_subroutine_die, output_local_variable_die,
        !          6509:        output_local_subroutine_die):
        !          6510:        Fixed to handle inline abstract & concrete (i.e. inlined) instances.
        !          6511:        (output_inlined_subroutine_die): Deleted.
        !          6512:        (output_label_die):  Don't permit the rtx associated with a named
        !          6513:        user-declared label to be marked as INSN_DELETED_P.
        !          6514:        (output_tagged_type_instantiation):  New function added.
        !          6515:        (output_decl):  Call `output_tagged_type_instantiation'.
        !          6516:        Don't generate a pubnames label for anything marked as DECL_ABSTRACT.
        !          6517:        (output_die):  Generate the proper kind fo DIE for each of the four
        !          6518:        possible combination of {normal, inlined} {variable, parameter}.
        !          6519:        (dwarfout_file_scope_decl):  Don't generate pubnames entries if
        !          6520:        strictly abstract.
        !          6521: 
        !          6522:        * dwarfout.c (ordering_attribute):  Only def if USE_ORDERING_ATTRIBUTE
        !          6523:        is defined.
        !          6524:        (output_array_type_die): Only call ordering_attribute if it is defined.
        !          6525:        (name_and_src_coords_attributes):  Don't make it inline.
        !          6526:        Do make it static linkage.
        !          6527:        (const_value_attribute):  Catch invalid kinds of rtx nodes
        !          6528:        by aborting for the default case in switch.
        !          6529: 
        !          6530:        * dwarfout.c (output_ptr_to_mbr_type_die):  Make it static linkage.
        !          6531:        (output_formal_types):  Make sure that `formal_type' is initialized.
        !          6532:        (output_type):  Add a default case for switch.
        !          6533:        (output_decl):  Don't suppress DIEs for the initial (artificial)
        !          6534:        arguments for C++ static member functions.
        !          6535: 
        !          6536:        * dwarfout.c (ceiling, field_type, simple_type_align_in_bits,
        !          6537:        simple_type_size_in_bits, field_byte_offset):  New functions added.
        !          6538:        (data_member_location_attribute):  Use new routine `field_byte_offset'
        !          6539:        to calculate the offset value for the AT_location attribute.
        !          6540:        (byte_size_attribute):  Use new routine `field_type' to get the
        !          6541:        actual type for any FIELD_DECL.  Also, use `simple_type_size_in_bits'
        !          6542:        to avoid potential problems with ERROR_MARKs when computing the size
        !          6543:        of a FIELD_DECL.
        !          6544:        (bit_offset_attribute):  Rewritten to use `field_byte_offset' when
        !          6545:        determining the start of the "containing object".
        !          6546: 
        !          6547:        * integrate.c (expand_inline_function):  Integrate parameters before
        !          6548:        locals to get debugging information in the proper order.
        !          6549:        (integrate_decl_tree):  Don't do a redundant pushlevel/poplevel for
        !          6550:        the outermost scope (i.e. when level==0)... just use the one created
        !          6551:        by `expand_inline_function'.
        !          6552: 
        !          6553:        * calls.c (calls_alloca): For BLOCK, walk subblocks and vars by hand.
        !          6554: 
        !          6555: Wed Jul  8 13:31:19 1992  Michael Meissner  ([email protected])
        !          6556: 
        !          6557:        * cp-decl.c (print_binding_level): Fix typo, where 'lbl' was used
        !          6558:        instead of 'lvl'.
        !          6559: 
        !          6560:        * objc-actions.c (build_shared_structure_initializer): Correct call
        !          6561:        to build_int_2 which had only one argument, instead of two.
        !          6562: 
        !          6563: Wed Jul  8 06:37:40 1992  Torbjorn Granlund  ([email protected])
        !          6564: 
        !          6565:        * gstdarg.h, gvarargs.h: Test `__hppa__' instead of `__hp9000s800__'.
        !          6566: 
        !          6567:        * romp.md (zero_extendhisi2): Remove unneeded constraint.
        !          6568: 
        !          6569:        * rs6000.md (zero_extendhisi2): Remove unneeded constraint.
        !          6570:        (lu/stu): Use %0 instead of %1 in assembler insns.
        !          6571:        (call_value): Add missing "=" in constraint.
        !          6572: 
        !          6573: Wed Jul  8 06:30:20 1992  Richard Kenner  ([email protected])
        !          6574: 
        !          6575:        * rs6000.md (floatsidf): Correctly handle case when SImode operand
        !          6576:        overlaps the first DFmode register.
        !          6577: 
        !          6578:        * fold-const.c (distribute_bit_expr, range_test, fold_truthop):
        !          6579:        Use TRUTH_AND_EXPR instead of BIT_AND_EXPR so invert_truthvalue works.
        !          6580: 
        !          6581:        * c-decl.c (grokdeclarator): Strip all NOP_EXPRs from SIZE.
        !          6582: 
        !          6583:        * integrate.c: Do 64-bit changes (this file omitted the last time).
        !          6584:        Replace use of NULL and 0 in functions args with NULL_RTX.
        !          6585:        (copy_rtx_and_substitute, subst_constants): Handle "w" rtl
        !          6586:        operand class.
        !          6587: 
        !          6588:        * rs6000.h (LINK_SPEC): Support -static.
        !          6589: 
        !          6590:        * tree.c (make_node, copy_node, make_tree_vec, tree_cons, build1):
        !          6591:        Clear or copy tree nodes in a consistent manner, referencing
        !          6592:        every byte of the node.
        !          6593: 
        !          6594:        * regclass.c: Initialize REG_CLASS_CONTENTS into an array of
        !          6595:        ints, then copy into a HARD_REG_SET to avoid conditionalization
        !          6596:        of REG_CLASS_CONTENTS on 64-bit machines.
        !          6597: 
        !          6598:        * c-common.c (check_case_value): Strip the NOP_EXPR added by
        !          6599:        the grammar.
        !          6600:        * stmt.c (pushcase, pushcase_range): Don't do it here.
        !          6601: 
        !          6602:        * c-lex.c (yylex): Ensure TOTAL_PARTS is wide enough to store a
        !          6603:        constant as wide as we can store in an INTEGER_CST.
        !          6604:        (LONG_LONG_TYPE_SIZE): Deleted; no longer needed.
        !          6605: 
        !          6606: Tue Jul  7 15:50:38 1992  Chip Salzenberg  ([email protected])
        !          6607: 
        !          6608:        * x-i386sco (XCFLAGS): Omit flags specific to "rcc".
        !          6609:        (CC, OLDCC): Put them here instead.
        !          6610: 
        !          6611: Tue Jul  7 18:57:10 1992  Mike Stump  ([email protected])
        !          6612: 
        !          6613:        The below entries should make DWARF debugging a little bit easier.
        !          6614: 
        !          6615:        * cp-decl.c (pushdecl): IDENTIFIER_GLOBAL_VALUE should not be _DECL
        !          6616:        nodes but rather TYPE_DECLs.
        !          6617: 
        !          6618:        * cp-decl.c (pushtag): Mark binding layer markers as internal.
        !          6619: 
        !          6620:        * cp-class.c (finish_struct): Propagate internal mark on binding
        !          6621:        layer markers.
        !          6622: 
        !          6623:        * cp-decl2.c (finish_file): Don't name things that should not be
        !          6624:        named.
        !          6625: 
        !          6626:        * cp-method.c (decl_as_string): New back-end routine for
        !          6627:        substitute_nice_name.
        !          6628: 
        !          6629:        * cp-decl2.c (substitute_nice_name): New function used to create
        !          6630:        reasonable DECL_NAMEs from cyrptic ones.
        !          6631: 
        !          6632:        * cp-decl2.c (grokclassfn): Use substitute_nice_name.
        !          6633: 
        !          6634: Tue Jul  7 14:04:01 1992  Richard Stallman  ([email protected])
        !          6635: 
        !          6636:        * expr.c (emit_move_insn): Don't try subwords for a single word.
        !          6637: 
        !          6638:        * gcc.c (find_a_file, putenv_from_prefix):
        !          6639:        Handle value of 2 in require_machine_suffix.
        !          6640:        (process_command): Supply 2 for standard_exec_prefix{,_1}.
        !          6641: 
        !          6642:        * gstdarg.h: Undefine _BSD_VA_LIST if we define va_list.
        !          6643: 
        !          6644:        * cccp.c (append_include_chain): Fix setting of first_bracket_include.
        !          6645: 
        !          6646:        * loop.c (init_loop): Use word_mode, not SImode.
        !          6647: 
        !          6648:        * x-dpx2: New file.
        !          6649:        * x-dpx2200, x-dpx2300: Files deleted.
        !          6650:        * configure (m68k-bull-sysv*): Fatal error unless --with-gas.
        !          6651:        Always use x-dpx2.
        !          6652: 
        !          6653:        * libgcc2.c (XFtype): Turn off definition; not used.
        !          6654:        (TFtype): Define only if needed.
        !          6655: 
        !          6656: Tue Jul  7 11:57:44 1992  Torbjorn Granlund  ([email protected])
        !          6657: 
        !          6658:        * tahoe.md (call_value): Add `=' to output operand constraint.
        !          6659:        * arm.md (call_value): Likewise.
        !          6660:        * gmicro.md (negsf2, negdf2, abssf2, absdf2): Likewise.
        !          6661:        (peephole for moving returned value to fp reg): Likewise.
        !          6662: 
        !          6663:        * longlong.h (SI_TYPE_SIZE):  Renamed from LONG_TYPE_SIZE.
        !          6664: 
        !          6665:        * longlong.h (machine independent code): #define udiv_qrnnd to call
        !          6666:        __udiv_using_sdiv if we have sdiv_qrnnd but not udiv_qrnnd.
        !          6667:        * libgcc2.c (__udiv_using_sdiv): New function.
        !          6668:        * Makefile.in (LIB2FUNCS): Add __udiv_using_sdiv.
        !          6669: 
        !          6670: Mon Jul  6 23:28:29 1992  Mike Stump  ([email protected])
        !          6671: 
        !          6672:        * cp-dem.c, cp-lex.c, cp-method.c, cp-xref.c:  Do not include
        !          6673:        string.h or strings.h.
        !          6674: 
        !          6675: Mon Jul  6 18:32:31 1992  Richard Kenner  ([email protected])
        !          6676: 
        !          6677:        * emit-rtl.c (operand_subword): Avoid conditionals in macro arg.
        !          6678: 
        !          6679:        * Changes to support execution on 64-bit machines.
        !          6680:        * machmode.h (HOST_BITS_PER_WIDE_INT, HOST_WIDE_INT, HOST_PTR_PRINTF):
        !          6681:        Provide default definitions.
        !          6682:        (MAX_SHORT): New macro.
        !          6683:        (GET_MODE_BITSIZE): Cast result and shift constant to HOST_WIDE_INT.
        !          6684:        * rtl.h (union rtunion_def): Add field rtwint.
        !          6685:        (XWINT): New accessor macro.
        !          6686:        (INTVAL): Use XWINT, not XINT.
        !          6687:        (exact_log2, floor_log2, plus_constant, plus_constant_for_output):
        !          6688:        Now macros that cast arg to HOST_WIDE_INT.
        !          6689:        (NULL, NULL_PTR): Provide default definitions.
        !          6690:        (GEN_INT): New macro.
        !          6691:        (get_integer_term): Now returns HOST_WIDE_INT.
        !          6692:        * tree.h (NULL, NULL_PTR): Provide default definitions.
        !          6693:        (INT_CST_LT, INT_CST_LT_UNSIGNED): Cast to HOST_WIDE_INT.
        !          6694:        (struct tree_int_cst): Pieces of constant are HOST_WIDE_INT, not
        !          6695:        long.
        !          6696:        (exact_log2, floor_log2, build_int_2): Now macros, like rtl.h.
        !          6697:        * real.h (REAL_VALUE_TYPE, union real_extract): Use HOST_WIDE_INT,
        !          6698:        not long.
        !          6699:        (CONST_DOUBLE_LOW, CONST_DOUBLE_HIGH): Use XWINT instead of XINT.
        !          6700:        * rtl.def (CONST_INT): Operand type now "w".
        !          6701:        (CONST_DOUBLE): Change operands from type "i" to "w".
        !          6702:        * basic-block.h (REGSET_ELT_BITS): Always use HOST_BITS_PER_WIDE_INT.
        !          6703:        (REGSET_ELT_TYPE): New macro; same as HOST_WIDE_INT.
        !          6704:        * expr.h (ARGS_SIZE_RTX): Use NULL_RTX in expand_expr call.
        !          6705:        (plus_constant): Remove duplicate declaration.
        !          6706:        * hard-reg-set.h (HARD_REG_SET): Only scalar type we use
        !          6707:        is HOST_WIDE_INT; array is array of HOST_WIDE_INT.
        !          6708:        * loop.h (struct induction): Field CONST_ADJUST is now HOST_WIDE_INT.
        !          6709:        (loop_n_iterations): Now unsigned HOST_WIDE_INT.
        !          6710:        (loop_iterations): Returns HOST_WIDE_INT.
        !          6711:        * c-parse.y, cexp.y, c-decl.c, c-lex.c, c-typeck.c, caller-save.c:
        !          6712:        Change 0 or NULL when passed as a parameter that should be a pointer
        !          6713:        to NULL_TREE, NULL_RTX, or NULL_PTR, as appropriate.
        !          6714:        * calls.c, cccp.c, combine.c, cp-lex.c, cse.c, dbxout.c: Likewise.
        !          6715:        * dwarfout.c, emit-rtl.c, explow.c, expmed.c, expr.c: Likewise.
        !          6716:        * final.c, flow.c, fold-const.c, function.c, gcc.c: Likewise.
        !          6717:        * genattrtab.c, genpeep.c, genrecog.c, global-alloc.c: Likewise.
        !          6718:        * jump.c, local-alloc.c, optabs.c, recog.c, reg-stack.c: Likewise.
        !          6719:        * regclass.c, reload.c, reload1.c, reorg.c, rtl.c: Likewise.
        !          6720:        * rtlanal.c, sched.c, sdbout.c, stmt.c, stor-layout.c: Likewise.
        !          6721:        * toplev.c, unroll.c, varasm.c, loop.c, xcoffout.c: Likewise.
        !          6722:        * caller-save.c, combine.c, cp-class.c, cp-decl.c, cp-method.c:
        !          6723:        Cast and declare objects used to refer to wide values as HOST_WIDE_INT.
        !          6724:        Use HOST_BITS_PER_WIDE_INT instead of HOST_BITS_PER_INT.
        !          6725:        * cp-pt.c, cp-type2.c, cp-typeck.c, cse.c, dbxout.c: Likewise.
        !          6726:        * dwarfout.c, emit-rtl.c, explow.c, expmed.c, expr.c: Likewise.
        !          6727:        * final.c, fold-const.c, genattrtab.c, recog.c, reg-stack.c: Likewise.
        !          6728:        * regclass.c, reload.c, sched.c, stmt.c, stor-layout.c: Likewise.
        !          6729:        * loop.c, toplev.c, unroll.c, varasm.c: Likewise.
        !          6730:        * caller-save.c, combine.c, flow.c, global-alloc.c, reorg.c, sched.c:
        !          6731:        When refering to regsets, use type REGSET_ELT_TYPE.
        !          6732:        * calls.c, combine.c, emit-rtl.c, explow.c, expmed.c, expr.c, final.c:
        !          6733:        Use GEN_INT macro when making CONST_INTs.
        !          6734:        * function.c, jump.c, loop.c, optabs.c, recog.c, reload1.c: Likewise.
        !          6735:        * unroll.c: Likewise.
        !          6736:        * cp-decl.c, cp-ptree.c, print-tree.c: Use HOST_PTR_PRINTF when
        !          6737:        printing pointer values.
        !          6738:        * cccp.c, cexp.y, gcc.c (NULL, NULL_PTR): Provide default definition.
        !          6739:        * c-common.c (NULL): Remove definition from here.
        !          6740:        * c-decl.c (NULL): Likewise.
        !          6741:        (finish_struct): Ensure high-order part of width is zero.
        !          6742:        * cp-decl.c (finish_enum): Likewise.
        !          6743:        * c-lex.c (yylex): Call build_int_2 in more portable way.
        !          6744:        (yyprint): Print constant different ways, depending on host parameters.
        !          6745:        * final.c (output_asm_insn, output_addr_cont): Likewise.
        !          6746:        * genattrtab.c (write_test_expr): Likewise.
        !          6747:        * print-tree.c (print_node_brief, print_node): Likewise.
        !          6748:        * cp-decl.c (xref_tag): Remove explicit reference to modes.
        !          6749:        * cp-method.c (build_overload_value): Likewise.
        !          6750:        * cp-lex.c (real_yylex): Make accumulating bits for constant 
        !          6751:        more portable.
        !          6752:        * cse.c (uid_cuid): Now pointer to int instead of to short.
        !          6753:        (exp_equiv_p): Change ifs on GET_RTX_FORMAT to a switch.
        !          6754:        Add format code of "w".
        !          6755:        * emit-rtl.c (gen_rtx): Add format code of "w".
        !          6756:        * jump.c (rtx_renumbered_equal_p, rtx_equal_for_thread_p): Likewise.
        !          6757:        * loop.c (rtx_equal_for_loop_p): Likewise.
        !          6758:        * reload.c (operands_match_p): Likewise.
        !          6759:        * rtl.c (copy_rtx, copy_most_rtx): Likewise.
        !          6760:        * rtlanal.c (rtx_equal_p): Likewise.
        !          6761:        * sched.c (rtx_equal_for_memref_p): Likewise.
        !          6762:        * explow.c (plus_constant_wide): Formerly plus_constant; argument
        !          6763:        is HOST_WIDE_INT.
        !          6764:        (plus_constant_for_output_wide): Similarly.
        !          6765:        * fold-const.c: Use MAX_SHORTS for dimension of array of shorts.
        !          6766:        * genattrtab.c (NULL_ATTR): New macro.
        !          6767:        (attr_rtx): Use XWINT, not XINT, for CONST_INT.
        !          6768:        Add case "w".
        !          6769:        (check_attr_test, write_test_expr, main): Use XWINT, not XINT,
        !          6770:        for CONST_INT.
        !          6771:        * genemit.c (gen_exp): Use "NULL_RTX" instead of "0" when
        !          6772:        emitting null.
        !          6773:        Use GEN_INT and proper width when emitting a CONST_INT.
        !          6774:        Abort if trying to write a CONST_DOUBLE.
        !          6775:        * genrecog.c (struct decision): Add new fields TEST_ELT_ZERO_WIDE
        !          6776:        and ELT_ZERO_WIDE.
        !          6777:        (add_to_sequence, not_both_true, merge_trees, write_tree_1):
        !          6778:        Use new fields.
        !          6779:        * global-alloc.c (INT_BITS, INT_TYPE): Use HOST_WIDE_INT for type
        !          6780:        of conflict matrix.
        !          6781:        * loop. (loop_n_iterations): Now HOST_WIDE_INT.
        !          6782:        * recog.c: Remove redundant declarations of plus_constant_for_output
        !          6783:        and copy_rtx.
        !          6784:        * rtl.c: Declare atol if needed.
        !          6785:        (rtx_format): Add code for "w".
        !          6786:        (read_rtx): Read code "w" field with atol if required.
        !          6787:        (init_rtl): Fields of CONST_DOUBLE are now type "w".
        !          6788:        * rtlanal.c (get_integer_term): Returns HOST_WIDE_INT.
        !          6789:        * cccp.c, toplev.c: Error function args are HOST_WIDE_INT (kludge).
        !          6790:        * toplev.c (exact_log2_wide): Renamed from exact_log2 and now has
        !          6791:        arg of type HOST_WIDE_INT.
        !          6792:        (floor_log2_wide): Similarly.
        !          6793:        * tree.c (permalloc): Type of SIZE arg is int, not long.
        !          6794:        (build_int_2_wide): Renamed from build_int_2 and has args of
        !          6795:        type HOST_WIDE_INT.
        !          6796:        * unroll.c (loop_iterations): Now returns HOST_WIDE_INT.
        !          6797:        * varasm.c (immed_double_const): Arguments are now HOST_WIDE_INT.
        !          6798: 
        !          6799: Mon Jul  6 14:56:26 1992  Richard Stallman  ([email protected])
        !          6800: 
        !          6801:        * c-common.c (decl_attributes): Don't set DECL_PACKED on VAR_DECL.
        !          6802: 
        !          6803:        * Makefile.in (GCC_CFLAGS):
        !          6804:        Use CROSS_GCC_CFLAGS instead of -B for tooldir.
        !          6805:        * cross-make (CROSS_GCC_CFLAGS): Define as -B for tooldir.
        !          6806: 
        !          6807:        * c-decl.c (finish_function): If return type of `main' is not `int',
        !          6808:        warn instead of doing DEFAULT_MAIN_RETURN.
        !          6809: 
        !          6810:        * collect2.c, dwarfout.c, halfpic.c: Don't incude string.h.
        !          6811: 
        !          6812:        * c-decl.c (duplicate_decls): Let char *foo () match void *foo ()
        !          6813:        only if one of them came from a system header file.
        !          6814: 
        !          6815:        * stmt.c (pushcase): Fix typo.
        !          6816: 
        !          6817:        * Makefile.in (ALLOCA_FINISH): Make default `true'.
        !          6818: 
        !          6819:        * cccp.c (main): Clear first_bracket_include for -I-.
        !          6820:        Set first_system_include for first system header directory.
        !          6821:        (is_system_include): Start search at first_system_include.
        !          6822: 
        !          6823: Mon Jul  6 12:58:27 1992  Chip Salzenberg  ([email protected])
        !          6824: 
        !          6825:        * cccp.c (INCLUDE_LEN_FUDGE): Defined.
        !          6826:        (append_include_chain): New function.  Adds directory(ies)
        !          6827:        to include chain and updates value of max_include_len.
        !          6828:        (main, path_include): Use append_include_chain.
        !          6829:        (do_include): Use INCLUDE_LEN_FUDGE.
        !          6830: 
        !          6831:        * tree.h (DECL_IN_SYSTEM_HEADER): Defined.
        !          6832:        (struct tree_decl): Add in_system_header_flag.
        !          6833:        * c-common.c (declare_function_name): For __FUNCTION__
        !          6834:        and __PRETTY_FUNCTION__, set DECL_IN_SYSTEM_HEADER instead
        !          6835:        of TREE_USED to supress `unused' warnings.
        !          6836:        * c-decl.c (duplicate_decls): Merge DECL_IN_SYSTEM_HEADER flag.
        !          6837:        * print-tree.c (print_node): Display TREE_RAISES and
        !          6838:        DECL_IN_SYSTEM_HEADER flags.
        !          6839:        * toplev.c (compile_file): Do not warn if an unused DECL
        !          6840:        has DECL_IN_SYSTEM_HEADER set.
        !          6841:        (rest_of_compilation): Do not set TREE_USED on static
        !          6842:        functions defined in system headers; this will be taken
        !          6843:        care of with DECL_IN_SYSTEM_HEADER.
        !          6844:        * tree.c (make_node): Set DECL_IN_SYSTEM_HEADER on permanent
        !          6845:        decls defined in system headers.
        !          6846:        * objc-actions.c (build_module_descriptor,add_objc_decls):
        !          6847:        Set DECL_IN_SYSTEM_HEADER instead of TREE_USED on compiler-
        !          6848:        created decls.
        !          6849: 
        !          6850: Mon Jul  6 10:17:30 1992  Michael Collison  (collison at osf.org)
        !          6851: 
        !          6852:        * i386.h  (SUBTARGET_SWITCHES):
        !          6853:        Incoporate SUBTARGET_SWITCHES into TARGET_SWITCHES.
        !          6854:        (HALF_PIC_P, HALF_PIC_NUMBER_PTRS, HALF_PIC_NUMBER_REFS,
        !          6855:        HALF_PIC_ENCODE, HALF_PIC_DECLARE, HALF_PIC_INIT,
        !          6856:        HALF_PIC_ADDRESS_P, HALF_PIC_PTR, HALF_PIC_FINISH):
        !          6857:        Define these as stubs if not OSF/1 platform.
        !          6858:        * i386.md (movsi): Recognize half-pic moves.
        !          6859: 
        !          6860: Mon Jul  6 11:16:47 1992  Tim Moore  ([email protected])
        !          6861: 
        !          6862:        * pa.h (ASM_DECLARE_FUNCTION_NAME): Fix typo
        !          6863: 
        !          6864: Mon Jul  6 08:48:51 1992  Torbjorn Granlund  ([email protected])
        !          6865: 
        !          6866:        * m68k.md (swapsi): Add `+' operand constraints.
        !          6867:        (insert to memory recognizer): Add `+'.
        !          6868:        (peephole for moving returned value to fp reg): Add `='.
        !          6869: 
        !          6870: Sun Jul  5 16:34:24 1992  John F Carr  (jfc at Achates.mit.edu)
        !          6871: 
        !          6872:        * vax.md (addsi3): Code generation improvements (whether to use movab).
        !          6873: 
        !          6874:        * vax.md (andsi3, andhi3, andqi3): If one of the source operands
        !          6875:        is a constant, complement that operand instead of a register or
        !          6876:        memory operand.
        !          6877: 
        !          6878: Sun Jul  5 13:16:15 1992  Richard Kenner  ([email protected])
        !          6879: 
        !          6880:        * combine.c (try_combine): When splitting using a DEFINE_SPLIT,
        !          6881:        update the number of sets of the destination if it is being set
        !          6882:        twice.  Also update reg_significant.
        !          6883: 
        !          6884: Sun Jul  5 13:14:50 1992  Richard Stallman  ([email protected])
        !          6885: 
        !          6886:        * c++: Fix typo testing $quote for nullness.
        !          6887: 
        !          6888:        * cse.c (simplify_binary_operation): Don't put sum of two symbolic
        !          6889:        addresses into a CONST.
        !          6890: 
        !          6891:        * m68kv4.h (ASM_OUTPUT_ALIGNED_COMMON): #undef this.
        !          6892:        (ASM_OUTPUT_ALIGNED_LOCAL): #undef this.
        !          6893:        (ASM_OUTPUT_ASCII): New overriding definition.
        !          6894:        (ASM_OUTPUT_CASE_END): New overriding definition.
        !          6895: 
        !          6896:        * c-typeck.c (convert_arguments): No -Wconversion warning
        !          6897:        if the function wants an enumeral type.
        !          6898: 
        !          6899:        * tek6000.h, tek6100.h, tek6200.h: New files.
        !          6900:        * configure (ns32k-tek6100-bsd, ns32k-tek6200-bsd): New alternatives.
        !          6901:        * config.sub: utek is synonym for bsd.
        !          6902: 
        !          6903:        * Makefile.in (alloca.o): Add -c.
        !          6904: 
        !          6905:        * Makefile.in (start.encap): Use LIBGCC1, not LIBGCC1_TARGET.
        !          6906:        (GCC_CFLAGS): Find executables in $(tooldir)/bin, not $(tooldir).
        !          6907:        (libgcc1.cross): New target.
        !          6908:        (all.cross, cross-test): Depend on libgcc.a.
        !          6909:        * cross-make (LIBGCC1): Use libgcc1.cross.
        !          6910: 
        !          6911:        * Makefile.in (USER_H): va-hp800.h changed to va-pa.h.
        !          6912:        (install-common): Fix typo.
        !          6913: 
        !          6914:        * stmt.c (pushcase, pushcase_range): Use STRIP_NOPS on the values.
        !          6915: 
        !          6916:        * x-amix, x-i860v4, x-ncr3000, x-sparcv4: Undo last change.
        !          6917:        * x-i386v4, x-m68kv4: Files deleted.
        !          6918:        * configure (i386-*-sysv4, i486-*-sysv4, m68k-*-sysv4):
        !          6919:        Corresponding changes.
        !          6920: 
        !          6921:        * c-decl.c (duplicate_decls): Don't warn about disagreement in `inline'
        !          6922:        except when non-inline fn is made inline after a call or definition.
        !          6923: 
        !          6924: Sun Jul  5 10:25:22 PDT 1992  Ron Guilmette (rfg at ncd.com)
        !          6925: 
        !          6926:        * c-decl.c (grokdeclarator):  Make `long long long' an error, not a
        !          6927:        warning.  Make duplicate qualifiers do pedwarn, not warning.
        !          6928: 
        !          6929:        * c-decl.c (pushdecl):  Always create a new (variant) ..._TYPE node
        !          6930:        for each new TYPE_DECL node created.
        !          6931: 
        !          6932:        * libgcc2.c (UQItype, SItype, USItype, DItype, UDItype, SFtype, DFtype,
        !          6933:        XFtype, TFtype):  Typedefs added.
        !          6934:        (SI_TYPE_SIZE):  Renamed globally from LONG_TYPE_SIZE.
        !          6935:        Define names for ANSI C types to `bogus_type' over the range of lines
        !          6936:        where we must always use the new mode-related types.  Undef them again
        !          6937:        at the end of that range (so we can used the ANSI types again), and
        !          6938:        then define the mode-related type names to `bogus_type' to insure
        !          6939:        those are not used from then on.
        !          6940: 
        !          6941:        * libgcc2.c, longlong.h (DIstruct):  Renamed globally from  `longlong'.
        !          6942:        (DIunion): Renamed globally from  `long_long'.
        !          6943:        Universally use the new mode-related type names for all functions
        !          6944:        and macros which expect, yield, or otherwise rely on operands to be
        !          6945:        of certain GCC-defined machine modes.
        !          6946: 
        !          6947: Sun Jul  5 11:11:00 1992  Torbjorn Granlund  ([email protected])
        !          6948: 
        !          6949:        * pa.h: (TARGET_VERSION): Print " (hppa)".
        !          6950:        * pa.md (zdepi recognizer): Add attribute.
        !          6951:        (recognizers for SImode load and store with fpregs): Add `=' to
        !          6952:        operand 0.
        !          6953: 
        !          6954: Sat Jul  4 15:02:19 1992  Richard Stallman  ([email protected])
        !          6955: 
        !          6956:        * configure (mips-*-sysv4): Don't set use_collect2.
        !          6957: 
        !          6958:        * c-parse.y (primary): Wrap a NOP_EXPR around an enum value.
        !          6959: 
        !          6960:        * libgcc2.c (__builtin_saveregs for i860): Test __svr4__, not SVR4.
        !          6961:        * va-i860.h: Test __svr4__.
        !          6962: 
        !          6963:        * c-decl.c (finish_function): Set BLOCK_SUPERCONTEXT of outer block.
        !          6964: 
        !          6965:        * x-m88kv3: File deleted.
        !          6966: 
        !          6967:        * x-sparcv4 (X_CFLAGS): Add -dn.
        !          6968: 
        !          6969:        * reorg.c: Move the #ifdef DELAY_SLOTS after the #includes.
        !          6970: 
        !          6971: Sat Jul  4 14:16:33 1992  Richard Kenner  ([email protected])
        !          6972: 
        !          6973:        * combine.c (SUBST): Ensure we don't call something that can make
        !          6974:        a new undo entry in the middle of our making one.
        !          6975: 
        !          6976: Sat Jul  4 12:17:55 1992  Richard Stallman  ([email protected])
        !          6977: 
        !          6978:        * Makefile.in (cp-parse.c): Append YYEMPTY to cp-parse.h, not ...y.
        !          6979: 
        !          6980:        * cse.c (simplify_unary_operation): Add aborts in zero_extend
        !          6981:        and sign_extend cases, explaining how they might need to be changed.
        !          6982: 
        !          6983:        * i960.h (WORD_SWITCH_TAKES_ARG): Fix typo.
        !          6984: 
        !          6985:        * x-amix, x-sparcv4, x-i860v4, x-i386v4, x-ncr3000:
        !          6986:        Add -static to X_CFLAGS.
        !          6987:        * x-m68kv4: New file.
        !          6988:        * isc.h (HANDLE_SYSV_PRAGMA): Defined.
        !          6989: 
        !          6990: Sat Jul  4 15:18:33 PDT 1992  Ron Guilmette  (rfg at ncd.com)
        !          6991: 
        !          6992:        * xm-spc-sol2.h: New file.
        !          6993: 
        !          6994:        * tree.h (DECL_UID):  Definition added.
        !          6995:        (struct tree_decl):  `uid' field added.
        !          6996:        * tree.c (DECL_UID):  Initialize this uniquely for each new ..._DECL.
        !          6997: 
        !          6998:        * rtl.h (NOTE_INSN_DELETED_LABEL):  Definition added.
        !          6999:        * rtl.c (note_insn_name): Add entry for NOTE_INSN_DELETED_LABEL.
        !          7000:        * final.c (final_scan_insn):  Call `dwarfout_label' for each
        !          7001:        `NOTE_INSN_DELETED_LABEL'.
        !          7002:        * jump.c (delete_insn):  Don't really delete CODE_LABELs corresponding
        !          7003:        to user-declared lables... Turn them into NOTE_INSN_DELETED_LABELs
        !          7004:        instead.
        !          7005: 
        !          7006:        * dwarf.h (AT_abstract_origin):  Renamed from AT_specification.
        !          7007:        * dwarfout.c (dwarf_attr_name):  Likewise.
        !          7008:        (dwarf_tag_name, dwarf_attr_name, dwarf_stack_op_name,
        !          7009:        dwarf_typemod_name, dwarf_fmt_byte_name):  Use normal DWARF prefixes
        !          7010:        for string names of unrecognized values.
        !          7011:        (is_block_body):  New function added.
        !          7012:        (DECL_NAME_FMT):  Definition added.
        !          7013:        (equate_decl_number_to_die_number, abstract_origin_attribute,
        !          7014:        pure_or_virtual_attribute):  New functions added.
        !          7015:        (src_coords_attribute):  Only define this is DWARF_DECL_COORDINATES
        !          7016:        is defined.
        !          7017: 
        !          7018:        * populate: New file.
        !          7019: 
        !          7020:        * function.c (instantiate_decls): Delete #if 1.
        !          7021: 
        !          7022:        * flags.h, toplev.c, dbxout.c (use_gnu_debug_info_extensions):
        !          7023:        Renamed from `use_gdb_dbx_extensions'.
        !          7024: 
        !          7025:        * toplev.c (main):  Added support for -gdwarf+ and for -gxcoff+.
        !          7026: 
        !          7027: Sat Jul  4 08:39:47 1992  Tom Wood  ([email protected])
        !          7028: 
        !          7029:        * m88k.c (m88k_end_prologue): Reset frame_laid_out here.
        !          7030:        (m88k_expand_prologue): Not here.
        !          7031: 
        !          7032:        * m88k.h (IDENT_ASM_OPT, ALIGN_ASM_OPT, ASM_OUTPUT_CASE_LABEL):
        !          7033:        Override svr4.h.
        !          7034: 
        !          7035: Fri Jul  3 12:40:27 1992  Paul Eggert  ([email protected])
        !          7036: 
        !          7037:        * fold-const.c (fold_convert): When converting a floating point
        !          7038:        constant to integer, warn about out-of-range values after truncating
        !          7039:        to integer, not before.
        !          7040: 
        !          7041: Fri Jul  3 19:34:07 1992  Mike Stump  (mrs@hal)
        !          7042: 
        !          7043:        * Makefile.in ($(srcdir)/cp-parse.c): extract YYEMPTY out of the
        !          7044:        parser generated .c file and put in the parser .h so that cp-lex.c
        !          7045:        does not have to define it.
        !          7046: 
        !          7047:        * cp-tree.c (__eprintf): Third argument line is now unsigned,
        !          7048:        completes Ron's Jul 2 change.
        !          7049: 
        !          7050: Fri Jul  3 15:03:30 1992  Richard Stallman  ([email protected])
        !          7051: 
        !          7052:        * configure: Set FIXINCLUDES in Makefile based on sysv4 or not.
        !          7053:        * x-amix (ENQUIRE_CFLAGS, FIXINCLUDES): Deleted.
        !          7054: 
        !          7055:        * config.sub: Recognize i486 like i386.
        !          7056: 
        !          7057:        * defaults.h (ASM_FORMAT_PRIVATE_NAME, ASM_OUTPUT_ADDR_VEC_ELT):
        !          7058:        (ASM_OUTPUT_ADDR_DIFF_ELT, ASM_STABD_OP): New default definitions.
        !          7059:        * final.c: Include defaults.h.
        !          7060:        (ASM_STABD_OP): Deleted.
        !          7061:        * Makefile.in (final.o) Depend on defaults.h.
        !          7062: 
        !          7063:        * Makefile.in (toplev.o): Use MAYBE_TARGET_DEFAULT.
        !          7064:        * configure: Set MAYBE_TARGET_DEFAULT for some targets.
        !          7065:        Use 3, if target is i486...
        !          7066:        Recognize i486 as well as i386 for most targets.
        !          7067: 
        !          7068:        * x-hp320g (LIBGCC1, AR, RANLIB, RANLIB_TEST, LIBCONVERT): Deleted.
        !          7069:        * t-hp320g (LIBGCC1, AR, RANLIB, RANLIB_TEST, LIBCONVERT): Defined.
        !          7070:        * t-svr4 (FIXINCLUDES): Deleted.
        !          7071: 
        !          7072:        * Makefile.in (ENQUIRE_CFLAGS): Add -DNO_LONG_DOUBLE_IO.
        !          7073: 
        !          7074:        * fold-const.c (BRANCH_COST): Add default definition.
        !          7075: 
        !          7076:        * cp-tree.h: Declare intQI_type_node, etc.
        !          7077:        * cp-decl.c: Declare intQI_type_node, etc.
        !          7078:        (init_decl_processing): Initialize those nodes.
        !          7079: 
        !          7080: Thu Jul  2 15:18:33 PDT 1992  Ron Guilmette  (rfg at ncd.com)
        !          7081: 
        !          7082:        * amix.h (ASM_OUTPUT_CASE_END, ASM_OUTPUT_ALIGNED_LOCAL):  Output
        !          7083:        tabs before SET_ASM_OP.
        !          7084: 
        !          7085:        * Makefile.in (dwarfout.o):  Dependency on defaults.h added.
        !          7086: 
        !          7087:        * sparcv4.h: Include real.h.
        !          7088:        (SET_ASM_OP): Undef it.
        !          7089: 
        !          7090:        * svr4.h (IDENT_ASM_OP):  Added generic svr4 definition.
        !          7091:        (ASM_FILE_END, ASM_OUTPUT_IDENT):  Use IDENT_ASM_OP.
        !          7092:        (ALIGN_ASM_OP):  Added generic svr4 definition.
        !          7093:        (ASM_OUTPUT_CASE_LABEL):  Added generic svr4 definition.
        !          7094: 
        !          7095:        * i860.c (strict_single_insn_op_p, relop): Deleted.
        !          7096:        * i860.h (ASM_OUTPUT_CASE_LABEL):  Fixed definition to use
        !          7097:        ASM_OUTPUT_ALIGN and ASM_OUTPUT_INTERNAL_LABEL.
        !          7098:        * i860b.h, i860v3.h (TARGET_VERSION):  Definitions added.
        !          7099:        * i860v3.h (CPP_PREDEFINES):  Predefine __svr3__ rather than SVR3.
        !          7100: 
        !          7101:        * c-decl.c (named_labels):  Change linkage to static.
        !          7102: 
        !          7103:        * assert.h (__eprintf): Declare 3rd arg as unsigned.
        !          7104: 
        !          7105:        * cccp.c (do_include): Don't do fprintf's if inhibit_warnings.
        !          7106:        Renamed system_header_p to angle_brackets.  Use is_system_include.
        !          7107:        (is_system_include): New function.
        !          7108:        (redundant_include_p) : Renamed from lookup_include.
        !          7109: 
        !          7110:        * c-common.c (type_for_size):  If no ANSI type matches, check for
        !          7111:        matches with built-in mode-releated types.
        !          7112:        (type_for_mode):  Likewise.
        !          7113:        * c-decl.c:  Added declarations for mode-related internal type nodes.
        !          7114:        (init_decl_processing):  Initialize the new type nodes.
        !          7115:        * c-tree.h:  Added declarations for mode-related internal type nodes.
        !          7116:        intQI_type_node, etc.
        !          7117: 
        !          7118:        * c-lex.c (yylex): For integers, rename shorts to parts.
        !          7119:        Let the number of them be variable.  Simplify overflow testing.
        !          7120:        Don't use long long types unless ll was specified.
        !          7121:        Don't warn twice.
        !          7122: 
        !          7123: Thu Jul  2 20:30:20 1992  Roland McGrath  ([email protected])
        !          7124: 
        !          7125:        * gstdarg.h: #ifdef _STDARG_H, not __STDARG_H.
        !          7126: 
        !          7127: Thu Jul  2 18:18:07 1992  Richard Stallman  ([email protected])
        !          7128: 
        !          7129:        * global.c: Renamed from global-alloc.c.
        !          7130: 
        !          7131: Thu Jul  2 15:36:25 1992  Torbjorn Granlund  ([email protected])
        !          7132: 
        !          7133:        * pa.c (zdepi_operand): New function.
        !          7134:        (emit_move_sequence): Use it.
        !          7135:        * pa.md: New pattern to recognize cases where zdepi can be used to
        !          7136:        load immediate constant.
        !          7137:        (insv): Allow obvious immediate values.
        !          7138:        (insv + 1): New recognizer for non-obvious immediate values.
        !          7139: 
        !          7140: Thu Jul  2 15:13:15 1992  Michael Meissner  ([email protected])
        !          7141: 
        !          7142:        * halfpic.c (half_pic_encode): Consider variables which are 'common'
        !          7143:        variables to need pic fixup.  Move the debug code, so that it prints
        !          7144:        for all calls, and calls debug_tree also.
        !          7145:        (half_pic_address): When doing eliminate_constant_term on a CONST,
        !          7146:        do a XEXP (addr, 0) to get to the real address.
        !          7147: 
        !          7148:        * decrose.h (CPP_SPEC, CC1_SPEC): If neither -fbuiltin nor
        !          7149:        -fno-builtin are passed, pass -fno-builtin, and renable the string
        !          7150:        and memory builtins via macros.  This is to support compiling the
        !          7151:        OSF/1 kernel which has a prototyped exit function which takes three
        !          7152:        arguments.  With no -pic switches, default to using shared libs.
        !          7153: 
        !          7154:        * i386rose.h (CPP_SPEC, CC1_SPEC): If neither -fbuiltin nor
        !          7155:        -fno-builtin are passed, pass -fno-builtin, and renable the string
        !          7156:        and memory builtins via macros.  This is to support compiling the
        !          7157:        OSF/1 kernel which has a prototyped exit function which takes three
        !          7158:        arguments.  Turn off pic support until the 386 backend supports it.
        !          7159: 
        !          7160:        * x-i386rose (SHLIB): Use -pic-none instead of -L${BUILD}/usr/ccs/lib.
        !          7161: 
        !          7162:        * x-decrose (SHLIB): Use -pic-none instead of -L${BUILD}/usr/ccs/lib.
        !          7163: 
        !          7164:        * mips.md (movsi): Rewrite handling of half-pic code so that load
        !          7165:        address of symbol + value is handled.
        !          7166:        (branch_zero): Don't allow branch comparing constant to 0.
        !          7167: 
        !          7168: Thu Jul  2 06:26:38 1992  Tom Wood  ([email protected])
        !          7169: 
        !          7170:        * m88k.md (blockage insn): Renamed from profiler.
        !          7171:        (epilogue insn): Don't provide this if a return insn will suffice.
        !          7172:        (m88k_end_epilogue): If the last insn isn't a barrier, print a return.
        !          7173:        * m88k.c (null_prologue): Renamed from null_epilogue.
        !          7174: 
        !          7175:        * m88k.c (condition_value): New function.
        !          7176:        * m88k.md (compare word insns): New insns and define_split
        !          7177:        patterns to take advantage of recent fold_truthop change.
        !          7178: 
        !          7179:        * m88k.h (ADDITIONAL_REGISTER_NAMES): Represent the condition code
        !          7180:        register as (reg:CC 0).  Give it the names "cc" and "psr".
        !          7181:        * m88k.md (superoptimizer sequences): New define_split patterns.
        !          7182:        (add/sub with carry): New insns.
        !          7183:        (add/sub DImode, ffssi2): Clobber the condition code register.
        !          7184: 
        !          7185: Wed Jul  1 13:37:37 1992  Richard Stallman  ([email protected])
        !          7186: 
        !          7187:        * gstddef.h Don't define macros associated with size_t unless we
        !          7188:        actually want to declare size_t.  Likewise for ptrdiff_t and wchar_t.
        !          7189: 
        !          7190:        * Makefile.in (install-common): Depend on xgcc, g++, c++, EXTRA_PARTS.
        !          7191:        Don't delete specs from libsubdir unless it exists in build dir.
        !          7192: 
        !          7193:        * va-pa.h: Renamed from va-hp800.h.
        !          7194:        * gstdarg.h, gvarargs.h: Use new name.
        !          7195: 
        !          7196:        * news3.h, news3gas.h: New files.
        !          7197:        * configure (m68k-sony-newsos3*): New alternative.
        !          7198: 
        !          7199:        * romp.h (SIZE_TYPE): Defined.
        !          7200: 
        !          7201:        * configure: Support --exec-prefix.  Simplify handling
        !          7202:        detached arguments of options.
        !          7203: 
        !          7204:        * isc.h, and other related files:
        !          7205:        waiting for entries from [email protected].
        !          7206: 
        !          7207: Wed Jul  1 12:04:53 1992  Ron Guilmette (rfg at ncd.com)
        !          7208: 
        !          7209:        * c-decl.c (grokdeclarator):  Don't mark file-scope register variables
        !          7210:        as TREE_PUBLIC.
        !          7211: 
        !          7212: Wed Jul  1 12:04:53 1992  Karl Berry ([email protected])
        !          7213: 
        !          7214:         * i386iscgas.h (SIZE_TYPE, PTRDIFF_TYPE): Define these, since we
        !          7215:         need to override GCC's defaults.
        !          7216: 
        !          7217:         * configure (i386-*-isc): Use different files if we have gas.
        !          7218:         * t-i386iscgas, i386iscgas.h, isc.h: New files
        !          7219:         * i386isc.h: Include isc.h.  Most of contents moved to isc.h.
        !          7220:         * bsd386.h (ASM_OUTPUT_LABELREF) [NO_UNDERSCORES]: do not prepend an
        !          7221:         underscore in this case.
        !          7222:         * i386gas.h (CPP_SPEC): if -posix, do -D_POSIX_SOURCE.
        !          7223: 
        !          7224: Wed Jul  1 09:13:44 1992  Tom Wood  ([email protected])
        !          7225: 
        !          7226:        * fold-const.c (fold_truthop): Renamed from merge_component_references.
        !          7227:        (simple_operand_p): New function.
        !          7228:        (range_test): Change JCODE parameter to the unconditional operation.
        !          7229:        (fold_truthop):  When branches are expensive, try to evaluate the
        !          7230:        RHS unconditionally.  Compute local variables as late as possible.
        !          7231: 
        !          7232:        * m88k.h (HANDLE_SYSV_PRAGMA): Replaces HANDLE_PRAGMA.
        !          7233:        * m88k.c (m88k_handle_pragma_token): Deleted.
        !          7234: 
        !          7235: Tue Jun 30 15:32:51 1992  Richard Stallman  ([email protected])
        !          7236: 
        !          7237:        * c-decl.c (duplicate_decls): If newdecl for builtin function
        !          7238:        has same return mode as the builtin, keep the builtin
        !          7239:        but use newdecl's return type.
        !          7240: 
        !          7241:        * i386.md (lshrdi3_const_int): Fix typo in shr insn.
        !          7242: 
        !          7243:        * Makefile.in (GCC_CFLAGS): Add `-B$(tooldir)/'.
        !          7244: 
        !          7245:        * i386sun.h, rs6000-mach.h, sparc.h, sun2o4.h, sun3.h (LINK_SPEC):
        !          7246:        Inhibit the default -e if -r or -nostdlib.
        !          7247: 
        !          7248:        * c-decl.c (lookup_label): Call label_rtx.
        !          7249: 
        !          7250:        * c-parse.y (primary): Rearrange and clean up.  In C_DECL_ANTICIPATED
        !          7251:        case, always call assemble_external and set TREE_USED.
        !          7252: 
        !          7253: Mon Jun 29 22:27:49 1992  Mike Stump  ([email protected])
        !          7254: 
        !          7255:        * cccp.c, cp-dem.c, dbxout.c, cp-lex.c, cp-xref.c, cp-method.c,
        !          7256:        dwarfout.c, c-typeck.c, mips-tfile.c, protoize.c, collect2.c: Make
        !          7257:        the compiler more consistent by using index and rindex everywhere
        !          7258:        instead of sometimes using strchr and strrchr.
        !          7259: 
        !          7260: Mon Jun 29 22:20:13 1992  Richard Kenner  ([email protected])
        !          7261: 
        !          7262:        * regclass.c (regclass): Restore some accidentally-deleted code.
        !          7263: 
        !          7264: Mon Jun 29 12:48:05 1992  Nobuyuki Hikichi  ([email protected])
        !          7265: 
        !          7266:        * collect2.c (MY_ISCOFF): New macro.
        !          7267:        (scan_prog_file): Use that instead of ISCOFF.
        !          7268: 
        !          7269:        * mips.c (override_options) [MIPS_NEWS]: Call setlinebuf.
        !          7270: 
        !          7271: Mon Jun 29 12:48:05 1992  Richard Stallman  ([email protected])
        !          7272: 
        !          7273:        * gcc.c (do_spec_1): For %I, pass -iprefix, not -imacros.
        !          7274: 
        !          7275:        * c-common.c (decl_attributes): For `packed' on VAR_DECL,
        !          7276:        set DECL_PACKED and DECL_ALIGN.
        !          7277: 
        !          7278:        * configure: Update usage message.
        !          7279:        (m68k-sony-newsos*, mips-sony-newsos*): New synonyms.
        !          7280: 
        !          7281:        * fold-const.c (merge_component_references):
        !          7282:        Make sure the four fields correspond in the proper order.
        !          7283: 
        !          7284:        * c-lex.c (check_newline): Support HANDLE_SYSV_PRAGMA.
        !          7285:        (handle_sysv_pragma): New function.
        !          7286:        * c-pragma.c: New file.
        !          7287:        * stor-layout.c (maximum_field_alignment): New variable.
        !          7288:        (layout_decl): Use it.
        !          7289:        * Makefile.in (C_OBJS, OBJC_OBJS): Add c-pragma.o
        !          7290:        (c-pragma.o): New rule.
        !          7291: 
        !          7292:        * i386.c (handle_pragma_token): Function deleted.
        !          7293:        * i386v4.h (HANDLE_PRAGMA): Deleted.
        !          7294: 
        !          7295:        * g++: Reestablish symlink to c++.
        !          7296:        Delete the testing of $TRACE--this could confuse people.
        !          7297:        Delete spurious assignment of $version.
        !          7298: 
        !          7299:        * tree.h (DECL_PACKED): Store this in regdecl_flag.
        !          7300: 
        !          7301:        * Makefile.in (LIB2FUNCS): Change _builtin_New to _caps_New.
        !          7302:        * libgcc2.c: Change L_builtin_New to L_caps_New.
        !          7303: 
        !          7304:        * dbxout.c (dbxout_symbol): Pass 3 args to eliminate_regs.
        !          7305:        Call alter_subreg for subregs.  Delete subreg case later on.
        !          7306:        Don't bother with reg_renumber--any pseudo reg is clearly
        !          7307:        a variable that was not allocated.
        !          7308:        * sdbout.c (sdbout_symbol): Call alter_subreg for subregs.
        !          7309:        Don't bother with reg_renumber--any pseudo reg is clearly
        !          7310:        a variable that was not allocated.
        !          7311: 
        !          7312:        * sequent.h (SIZE_TYPE): Defined.
        !          7313:        (LINK_LIBGCC_SPECIAL): Fix typo.
        !          7314: 
        !          7315: Mon Jun 29 12:04:57 1992  Tom Wood  ([email protected])
        !          7316: 
        !          7317:        * toplev.c (rest_of_compilation): Thread the prologue and epilogue
        !          7318:        code immediately after reloading is done.
        !          7319:        * sched.c (schedule_insns): Reposition the prologue and epilogue
        !          7320:        notes as needed.
        !          7321:        * reorg.c (dbr_schedule): Ditto.
        !          7322:        * rtl.h (NOTE_INSN_PROLOGUE_END, NOTE_INSN_EPILOGE_BEGIN): New notes.
        !          7323:        * rtl.c (note_insn_name): Record them.
        !          7324:        * function.c (record_insns, contains, thead_prologue_and_epilogue_insns,
        !          7325:        reposition_prologue_and_epilogue_notes): New functions.
        !          7326:        * final.c: Include insn-flags.h.
        !          7327:        (profile_after_prologue): New function.
        !          7328:        (final_start_function): Use profile_after_prologue here when we
        !          7329:        don't HAVE_prologue.
        !          7330:        (final_scan_insn): Use profile_after_prologue when we scan
        !          7331:        NOTE_INSN_PROLOGUE_END.  (This happens when we do HAVE_prologue.)
        !          7332:        Perform machine specific actions when the prologue-end and
        !          7333:        epilogue-begin notes are scanned.
        !          7334:        (final_scan_insn, BARRIER): Align only when something follows.
        !          7335:        * Makefile.in (final.o): Depends on insn-flags.h.
        !          7336: 
        !          7337:        * m88k.h (FUNCTION_END_PROLOGUE, FUNCTION_BEGIN_EPILOGUE): Define.
        !          7338:        (DELAY_SLOTS_FOR_EPILOGUE, ELIGIBLE_FOR_EPILOGUE_DELAY): Delete.
        !          7339:        * m88k.md (prologue, epilogue, profiler, locate1, locate2): New
        !          7340:        patterns for representing prologues and epilogues.
        !          7341:        * m88k.c (delay_slots_for_epilogue, eligible_for_epilogue_delay,
        !          7342:        ok_for_epilogue_p): Delete epilogue delay slot functions.
        !          7343:        (m88k_begin_prologue m88k_end_prologue m88k_expand_prologue): New
        !          7344:        functions replacing m88k_output_prologue.
        !          7345:        (m88k_begin_epilogue m88k_end_epilogue m88k_expand_epilogue): Ditto.
        !          7346:        (preserve_registers): Delete epilogue delay slot mechanism and
        !          7347:        change to output insns.
        !          7348:        (emit_add, emit_ldst): New functions.
        !          7349: 
        !          7350: Sun Jun 28 23:06:04 1992  Brendan Kehoe  ([email protected])
        !          7351: 
        !          7352:        * Makefile.in (bootstrap, bootstrap2, bootstrap3): In each
        !          7353:        passage of CC, use xgcc, not gcc.
        !          7354:        * dostage2, dostage3: Likewise.
        !          7355: 
        !          7356: Sun Jun 28 09:48:18 1992  Richard Stallman  ([email protected])
        !          7357: 
        !          7358:        * c-decl.c (duplicate_decls): If have char *foo () and
        !          7359:        void *foo (...), make just a pedwarn.  Add locals oldtype, newtype.
        !          7360:        * c-typeck.c (self_promoting_args_p): No longer static.
        !          7361: 
        !          7362:        * flow.c (regno_uninitialized): Return 0 for global reg var.
        !          7363: 
        !          7364:        * c-typeck.c (initializer_constant_valid_p):
        !          7365:        Allow CONVERT_EXPR if its operand is allowable. 
        !          7366:        (build_c_cast): For cast to union, make a CONSTRUCTOR.
        !          7367: 
        !          7368:        * sparc.c (SPARC_STACK_ALIGN): Add default definition.
        !          7369: 
        !          7370:        * c++: Use `set "$@"' to modify arguments.
        !          7371:        Use a case to decide how to set $gcc.
        !          7372:        $quote is now empty for false and the option name for true.
        !          7373:        Error at end if $quote is nonempty.
        !          7374:        $speclang is now the -x option itself.
        !          7375:        Move the -v case above the -* case.
        !          7376: 
        !          7377:        * limitx.h: Add #ifndef.
        !          7378:        * limity.h: New file.
        !          7379:        * Makefile.in (install-limits-h): Append limity.h to the end.
        !          7380: 
        !          7381:        * c-typeck.c (digest_init): Don't push spellings here (for union case).
        !          7382:        (process_init_constructor): Fix errors for field not found.
        !          7383:        (build_c_cast): Fold casts to union type.
        !          7384: 
        !          7385:        * xm-vms.h (XREF_FILE_NAME): Fix typo.
        !          7386: 
        !          7387:        * i386sun.h (SIZE_TYPE): Defined.
        !          7388: 
        !          7389:        * Makefile.in (alloca.o): Delete the rm command.
        !          7390:        Use -Demacs explicitly in compilation command.
        !          7391:        (ALLOCA_FLAGS, ALLOCA_FINISH): Empty by default.
        !          7392:        * x-pa-hpux, x-rs6000, x-rs6k-mach, x-dpx2200, x-dpx2300:
        !          7393:        (ALLOCA_FLAGS, ALLOCA_FINISH): Deleted.
        !          7394:        * x-dpx2200, x-dpx2300 (AS): Deleted.
        !          7395: 
        !          7396:        * configure: Set broken_install for V.4.
        !          7397:        (i386-*-aix, ns32k-*-genix, i386-*-isc, i386-*-sco): 
        !          7398:        (i386-*-sco3.2v4, m88k-dg-dgux): Set broken_install.
        !          7399:        (m88k-*-sysv): Don't use x-m88kv3.
        !          7400:        * x-m88kv3: File deleted.
        !          7401:        * x-aix386, x-dpx2200, x-dpx2300, x-genix, x-i386isc, x-i386sco:
        !          7402:        * x-i386v, x-i386v4, x-i860v3, x-i860v4, x-m88kdgux, x-m88kdolph:
        !          7403:        * x-m88kv4, x-ncr3000, x-sparcv4, x-xenix (INSTALL): Deleted.
        !          7404: 
        !          7405: Sun Jun 28 08:44:32 1992  Michael Meissner  ([email protected])
        !          7406: 
        !          7407:        * regclass.c (record_address_regs): Make the function static to
        !          7408:        agree with the forward declaration.
        !          7409: 
        !          7410:        * mips.h (LINK_LIBGCC_SPECIAL): Define.
        !          7411: 
        !          7412: Sun Jun 28 06:14:56 1992  Richard Kenner  ([email protected])
        !          7413: 
        !          7414:        * expr.c (direct_load, direct_store): New variables.
        !          7415:        (init_expr_once): New function.
        !          7416:        (convert_move, convert_to_mode): Don't let gen_lowpart make a MEM in
        !          7417:        a mode that can't be directly copied to or from memory.
        !          7418:        (store_field): Don't directly store into memory in a mode that
        !          7419:        can't be used in a single insn.
        !          7420:        (expand_expr, case COMPONENT_REF): Likewise, for load.
        !          7421:        * toplev.c (compile_file): Call init_expr_once.
        !          7422: 
        !          7423:        * cse.c (fold_rtx, case SUBREG): If we can find nested SUBREGs
        !          7424:        with an inner register in the mode we want, get rid of all the
        !          7425:        SUBREGs provided they are all within a word.
        !          7426: 
        !          7427:        * cp-call.c, cp-class.c, cp-decl.c, cp-edsel.c, cp-lex.c: Don't
        !          7428:        declare xmalloc and free here.
        !          7429:        * cp-methods.c, cp-pt.c, cp-search.c, flow.c, integrate.c: Likewise.
        !          7430:        * loop.c, opjc-actions.c, reload1.c, reorg.c, rtl.c: Likewise.
        !          7431:        * stmt.c, tree.c, varasm.c: Likewise.
        !          7432:        * toplev.c (xmalloc, xrealloc): Declare return types correctly.
        !          7433:        * rtl.h, tree.h: Declare xmalloc and free here.
        !          7434:        
        !          7435:        * expmed.c (emit_store_flag): Keep the last target around if we
        !          7436:        should preserve subexpressions.
        !          7437: 
        !          7438: Sat Jun 27 07:11:28 1992  Richard Kenner  ([email protected])
        !          7439: 
        !          7440:        * cse.c (cse_insn): See if we have a CONST_INT that is already in
        !          7441:        a register in a wider mode.
        !          7442: 
        !          7443:        * regclass.c: Major rework of regclass pass to do a better job of
        !          7444:        setting up register preferences and replace the "preferred or
        !          7445:        nothing" method with a class that should be used if the preferred 
        !          7446:        class cannot be allocated.
        !          7447:        (MEMORY_MOVE_COST): Default value is 4, not 2.
        !          7448:        (move_cost, may_move_cost): New arrays.
        !          7449:        (init_reg_sets): Initialize them.
        !          7450:        (struct costs): Replaces struct savings.
        !          7451:        (costs): Replaces savings.
        !          7452:        (op_costs): New array.
        !          7453:        (altclass): Replaces preferred_or_nothing.
        !          7454:        (reg_alternate_class): New function; replaced reg_preferred_or_nothing.
        !          7455:        (regclass): Major rework.  Use new recording methods; make two
        !          7456:        passes if -fexpensive-optimizations; and refine REGNO_POINTER_FLAG
        !          7457:        and loop_depth setting.
        !          7458:        (record_reg_class): New function; replaces reg_class_record.
        !          7459:        (copy_cost): New function.
        !          7460:        (record_address_regs): Major changes.  New parameters and simplified
        !          7461:        and more efficient algorithm for chosing base vs. index regs.
        !          7462:        * rtl.h (reg_alternate_class): Declare it.
        !          7463:        * Makefile.in (regclass.o): Now includes reload.h and real.h.
        !          7464:        * flow.c (dump_flow_info): Call reg_alternate_class instead of
        !          7465:        reg_preferred_or_nothing.
        !          7466:        * reload.c (find_reloads): Likewise.
        !          7467:        (n_occurrences): No longer static.
        !          7468:        * local-alloc.c: Use register alternate class instead of 
        !          7469:        preferred_or_nothing uniformly; change qty_preferred_or_nothing
        !          7470:        to qty_alternate_class.
        !          7471:        * global-alloc.c (global_alloc, retry_global_alloc): Call
        !          7472:        reg_alternate_class instead of reg_preferred_or_nothing.
        !          7473:        (find_reg): Change ALL_REGS_P argument to ALT_REGS_P.
        !          7474:        Use alternate register class instead of ALL_REGS if can't allocate
        !          7475:        in preferred class.
        !          7476: 
        !          7477:        * cccp.c (install): Accept separate arguments for integer and
        !          7478:        pointer hash values; don't assume the sizes are the same.
        !          7479:        All callers changed.
        !          7480: 
        !          7481:        * rtl.c (copy_rtx, copy_most_rtx): Add new case for 'u'.
        !          7482: 
        !          7483:        * tree.c (make_node): Clear all of common area, in particular, flags.
        !          7484: 
        !          7485:        * c-tree.h, cp-tree.h: Add declaration of truthvalue_conversion.
        !          7486: 
        !          7487: Sat Jun 27 06:21:18 1992  Tom Wood  ([email protected])
        !          7488: 
        !          7489:        * m88k.md (type attributes): Delete unused mbit and mfp types.
        !          7490:        (ffsi2 insn): Define.
        !          7491:        (negdf2 and absdf2 insns): Improve.
        !          7492: 
        !          7493:        * fold-const.c (range_test): Fix the misordered test.  Fail if VAR
        !          7494:        isn't an integer.
        !          7495: 
        !          7496: Sat Jun 27 00:54:44 1992  Richard Stallman  ([email protected])
        !          7497: 
        !          7498:        * gcc.c (link_command_spec): No %D if LINK_LIBGCC_SPECIAL.
        !          7499:        * sequent.h (LINK_LIBGCC_SPECIAL): Defined.
        !          7500: 
        !          7501:        * vax.h (PRINT_OPERAND): For SFmode, use 0f, not 0d or 0g.
        !          7502: 
        !          7503:        * ns32k.h (NS32K_DISPLACEMENT_P): Correct the range limits.
        !          7504:        * ns32k.c (print_operand_address): REG_OK_FOR_INDEX_P wants an rtx.
        !          7505: 
        !          7506: Fri Jun 26 08:55:03 1992  Tom Wood  ([email protected])
        !          7507: 
        !          7508:        * fold-const.c (range_test): New function.
        !          7509:        (merge_component_references): Look for range tests as well.
        !          7510: 
        !          7511:        * va-m88k.h: Same changes as other va-*.h files below.  Make this
        !          7512:        work when <stdio.h> and others are included on DG/UX.
        !          7513: 
        !          7514: Fri Jun 26 08:17:33 1992  Richard Stallman  ([email protected])
        !          7515: 
        !          7516:        * expr.c (safe_from_p): Handle 0 in TREE_VALUE of a TREE_LIST.
        !          7517:        (store_constructor: Ignore empty links in element chain.
        !          7518: 
        !          7519: Fri Jun 26 07:06:19 1992  Richard Kenner  ([email protected])
        !          7520: 
        !          7521:        * c-convert.c (convert_to_integer): Don't add a NOP_EXPR in cases
        !          7522:        where we can simply change the type of the entire tree.
        !          7523: 
        !          7524:        * cse.c (find_best_addr): Look for equivalents of a REG that is
        !          7525:        the first operand of an address that is a binary operator whose
        !          7526:        second operand is a CONST_INT.
        !          7527: 
        !          7528:        * stmt.c (expand_end_bindings): Don't save argument pointer if it
        !          7529:        will be eliminated in favor of the frame pointer.
        !          7530: 
        !          7531:        * combine.c (try_combine): When using define_split to split an
        !          7532:        insn, first try to put the pseudo-register into the mode of
        !          7533:        the destination since it is the most likely to be the correct mode.
        !          7534: 
        !          7535:        * combine.c (make_compound_operation): Treat PLUS and MINUS
        !          7536:        the same when passing down the code to the next level; for
        !          7537:        consistency, an ASHIFT inside either gets turned into a MULT.
        !          7538: 
        !          7539:        * fold-const.c (optimize_bit_field_compare): Delete dead
        !          7540:        assignment which can sometimes reference an undefined variable.
        !          7541: 
        !          7542:        * genoutput.c (gen_split): Initialize n_alternatives.
        !          7543: 
        !          7544:        * romp.md (movdf): Fix typo in operand_subword call in define_split.
        !          7545: 
        !          7546: Fri Jun 26 04:38:37 1992  Richard Stallman  ([email protected])
        !          7547: 
        !          7548:        * Make stdarg mechanism work with libc.
        !          7549:        * va-hp800.h, va-i860.h, va-i960.h, va-mips.h, va-pyr.h, va-sparc.h):
        !          7550:        Don't define or declare va_list; declare __gnuc_va_list.
        !          7551:        But only declare it once.
        !          7552:        Define other things only if _STDARG_H or _VARARGS_H.
        !          7553:        Declare va_end as well as defining it.
        !          7554:        * gstdarg.h: Likewise.
        !          7555:        If __need___va_list was defined, then undef it
        !          7556:        and don't define _STDARG_H.
        !          7557:        For all machines, declare va_list from __gnuc_va_list
        !          7558:        but only if _STDARG_H is defined.
        !          7559: 
        !          7560:        * gvarargs.h: Test _ANSI_H_, not _ANSI_H.
        !          7561: 
        !          7562: Thu Jun 25 23:24:02 1992  Richard Stallman  ([email protected])
        !          7563: 
        !          7564:        * ns32k.c (print_operand):
        !          7565:        Change NO_IMMEDIATE_PREFIX_IF_SYMBOLIC conditional to #ifdef.
        !          7566: 
        !          7567:        * genoutput.c (gen_split): Set d->n_alternatives.
        !          7568: 
        !          7569:        * Makefile.in (test-protoize-simple): Expect just 400 lines.
        !          7570:        (install-common-headers): When comparing srcdir with ., use pwd.
        !          7571: 
        !          7572: Tue Jun 16 22:11:12 1992  Jim Wilson  ([email protected])
        !          7573: 
        !          7574:        * Makefile.in (enquire.o): Don't delete/copy enquire.c, just use
        !          7575:        the copy in the source directory.
        !          7576: 
        !          7577: Tue Jun 25 23:52:27 1992  Howard Chu  ([email protected])
        !          7578: 
        !          7579:        * libgcc2.c (__builtin_saveregs): Use SVR4 code on Alliant FX2800,
        !          7580:        but with BSD function-naming convention.
        !          7581: 
        !          7582:        * va-i860.h: Use SVR4 definitions of __va_saved_regs and va_list
        !          7583:        on Alliant FX2800.
        !          7584: 
        !          7585:        * fx2800.h (I860_REG_PREFIX, ASM_COMMENT_START): Deleted.
        !          7586:        (DBX_NO_EXTRA_TAGS, BSS_ASM_OP): Deleted.
        !          7587:        (ASM_OUTPUT_DOUBLE, ASM_OUTPUT_FLOAT): Deleted.
        !          7588:        (ASM_FILE_START): Just call output_file_directive.
        !          7589: 
        !          7590: Thu Jun 25 06:49:15 1992  Richard Stallman  ([email protected])
        !          7591: 
        !          7592:        * c-typeck.c (process_init_constructor): Strip NON_LVALUE_EXPR
        !          7593:        from specified array index.
        !          7594: 
        !          7595:        * configure (i386-*-bsd*, i386-*-mach*): Don't set tmake_file.
        !          7596:        They used to use t-libc-ok.
        !          7597: 
        !          7598:        * input.h (struct file_stack): Revert prev. change.
        !          7599: 
        !          7600: Thu Jun 25 06:33:52 1992  Tom Wood  ([email protected])
        !          7601: 
        !          7602:        * stmt.c (expand_end_case): Add CASE_VALUES_THRESHOLD.
        !          7603:        * m88k.h (CASE_VALUES_THRESHOLD): Define.
        !          7604: 
        !          7605: Thu Jun 25 06:13:39 1992  Richard Kenner  ([email protected])
        !          7606: 
        !          7607:        * explow.c (plus_constant, case PLUS): Remove obsolete code;
        !          7608:        use recursive call in case remaining operand is one we handle.
        !          7609: 
        !          7610: Wed Jun 24 19:15:14 1992  Richard Kenner  ([email protected])
        !          7611: 
        !          7612:        * combine.c (subst, case PLUS): If adding two things with no bits
        !          7613:        in common, convert to IOR.
        !          7614: 
        !          7615:        * expr.c (do_jump, case BIT_AND_EXPR, COMPONENT_REF): Don't narrow
        !          7616:        comparison unless byte accesses are not slow and we have a
        !          7617:        comparison in the new mode.
        !          7618: 
        !          7619: Wed Jun 24 14:29:09 1992  Richard Stallman  ([email protected])
        !          7620: 
        !          7621:        * c-parse.y (primary): If built-in decl has not had
        !          7622:        an official declaration, print warning.
        !          7623:        * c-decl.c (builtin_function): Set C_DECL_ANTICIPATED for
        !          7624:        user-visible names.
        !          7625:        * c-tree.h (C_DECL_ANTICIPATED): New macro.
        !          7626: 
        !          7627:        * fixincludes: Make some symlinks in the `multimedia' subdir.
        !          7628: 
        !          7629:        * i386.c: Change #error to just error.
        !          7630: 
        !          7631:        * protoize.c: Normalize error message syntax.
        !          7632:        (process_aux_info_file): Don't delete .X file if it existed before.
        !          7633:        (explicity compare modtime with .c file.
        !          7634: 
        !          7635: Wed Jun 24 14:10:35 1992  Jim Wilson  ([email protected])
        !          7636: 
        !          7637:        * sparc.c (sparc_frw_compute_frame_size): New function, for flat
        !          7638:        register window model support.
        !          7639:        (sparc_frw_save_restore): Likewise.
        !          7640:        (sparc_frw_output_function_prologue): Likewise.
        !          7641:        (sparc_frw_output_function_epilogue): Likewise.
        !          7642:        (sparc_frw_epilogue_delay_slots): Likewise.
        !          7643:        (sparc_frw_eligible_for_epilogue_delay): Likewise.
        !          7644: 
        !          7645: Tue Jun 23 22:36:12 1992  Richard Stallman  ([email protected])
        !          7646: 
        !          7647:        * cccp.c (rescan): Recognize # only when reading directly from a file.
        !          7648: 
        !          7649:        * input.h (struct file_stack): Add member `fd'.
        !          7650: 
        !          7651:        * regclass.c (regno_first_uid, regno_last_uid): Make elements ints.
        !          7652:        (reg_scan): Allocate and clear them as ints.
        !          7653:        * regs.h: Fix the declarations.
        !          7654: 
        !          7655:        * Create driver executable with name xgcc; rename to gcc in installing.
        !          7656:        (xgcc): Target renamed.
        !          7657:        (GCC_FOR_TARGET, GCC_PASSES, start.encap, specs, gcc-cross):
        !          7658:        (install-common, install-collect2): Rename in deps, commands or value.
        !          7659:        (install-collect2): Always get driver from xgcc whether cross or not.
        !          7660: 
        !          7661: Tue Jun 23 00:00:35 1992  Brendan Kehoe  ([email protected])
        !          7662: 
        !          7663:        * toplev.c (strip_off_ending): Also strip off .C and .cxx.
        !          7664: 
        !          7665: Tue Jun 23 18:58:43 1992  Jim Wilson  ([email protected])
        !          7666: 
        !          7667:        * genrecog.c (add_to_sequence): Don't ignore mode of first operand
        !          7668:        of a MATCH_OPERAND or MATCH_DUP_OP rtl.
        !          7669:        * sparc.md (scc): Use noov_compare_op instead of normal_compare_op.
        !          7670: 
        !          7671:        * function.c (expand_function_start): When not optimizing, don't
        !          7672:        put static chain pointer in a pseudo register.
        !          7673: 
        !          7674:        * sparc.c (print_operand): For '*', only annul branch if
        !          7675:        optimizing, to avoid dbx bug.  Add '(' to handle unoptimized case.
        !          7676:        * sparc.h (PRINT_OPERAND_PUNCT_VALID_P): Add '('.
        !          7677:        * sparc.md (jump): Add '%(' to pattern.
        !          7678: 
        !          7679:        * c-decl.c (store_parm_decls): Change type of void parameter to
        !          7680:        error_mark_node.
        !          7681: 
        !          7682:        * configure (m68k-*-sysv4*): Use xm-m68kv.h not xm-m68kv4.h.
        !          7683: 
        !          7684:        * configure: Add -prefix option.
        !          7685: 
        !          7686:        * vax.c (split_quadword_operands): Declare paramater n.
        !          7687: 
        !          7688:        * i960.h (WORD_SWITCH_TAKES_ARG): Add -aux-info.
        !          7689: 
        !          7690:        * xcoffout.c (xcoffout_declare_function): Cast alloca result to char *.
        !          7691: 
        !          7692:        * c-convert.c (convert_to_integer): Don't pass truncation past
        !          7693:        shift that is larger than the size being truncated to.
        !          7694: 
        !          7695: Tue Jun 23 06:15:47 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7696: 
        !          7697:        * optabs.c (expand_binop, expand_unop): Try widening before trying
        !          7698:        to make a library call.
        !          7699: 
        !          7700:        * stmt.c (expand_return): Add missing emit_queue call in tail
        !          7701:        recursion case.
        !          7702: 
        !          7703:        * cse.c (simplify_unary_operation): Add SIGN_EXTEND and
        !          7704:        ZERO_EXTEND to the operations we handle for wide results.
        !          7705: 
        !          7706:        * expr.c (emit_block_move): Convert size operand to mode that will
        !          7707:        be passed to emit_library_call.
        !          7708: 
        !          7709: Tue Jun 23 00:41:03 1992  Paul Eggert  (eggert@shadow)
        !          7710: 
        !          7711:        * objc-parse.y (stmt): Fix mispelling for "label" in message.
        !          7712: 
        !          7713:        * cccp.c: (deps_file, pipe_closed): Deleted.
        !          7714:        (main): Do not open deps_file until needed.
        !          7715:        Check error status of dep_stream and stdout more carefully.
        !          7716: 
        !          7717: Tue Jun 23 00:21:05 1992  Richard Stallman  ([email protected])
        !          7718: 
        !          7719:        * Makefile.in (protoize.1, unprotoize.1): Rules deleted.
        !          7720:        (install-man, proto, realclean): Don't operate on them.
        !          7721:        * proto-man: File deleted.
        !          7722: 
        !          7723:        * protoize.c (main): Support -v as alias for -V.
        !          7724: 
        !          7725: Mon Jun 22 21:50:01 1992  Richard Stallman  ([email protected])
        !          7726: 
        !          7727:        * Makefile.in (compare, compare3): Discard error output from second
        !          7728:        tail.  If it fails, don't compare that file.
        !          7729: 
        !          7730:        * Makefile.in (stamp-proto): Move the touch command last.
        !          7731: 
        !          7732:        * cccp.c (finclude): Use xmalloc, not alloca, for file contents.
        !          7733: 
        !          7734:        * stmt.c (check_for_full_enumeration_handling): For a case range,
        !          7735:        consider all values in the range as handled.  Also, check both ends
        !          7736:        for being in the enumeration.
        !          7737: 
        !          7738:        * ns32k.h (NS32K_DISPLACEMENT_P): Wide displacement range applies to
        !          7739:        all models.
        !          7740: 
        !          7741: Mon Jun 22 20:29:47 1992  Ron Guilmette  (rfg at ncd.com)
        !          7742: 
        !          7743:        * expr.h (*_libfunc):  Added missing extern declarations of libfuncs
        !          7744:        to handle operations on/for TFmode and XFmode operands.
        !          7745:        * expr.c (convert_move):  Added missing code to handle moves (with
        !          7746:        conversion) from/to TFmode and XFmode operands.
        !          7747:        * optabs.c (*_libfuncs):  Added missing definitions of libfuncs
        !          7748:         to handle operations on/for TFmode and XFmode operands.
        !          7749:        (emit_float_lib_cmp):  Added missing code to handle XFmode and TFmode
        !          7750:        comparisons.
        !          7751:        (init_fixtab):  Added missing code to handle fixing (and trunc'ing)
        !          7752:        of XFmode and TFmode operands to various sizes of ints.
        !          7753:        (init_floattab):  Likewise, but for "float" operations from ints to
        !          7754:        either XFmode or TFmode.
        !          7755:        (expand_float):  Likewise.
        !          7756:        (expand_fix):  Likewise.
        !          7757:        (init_libfuncs, init_integral_libfuncs, init_floating_libfuncs): New
        !          7758:        functions added to initialize whole hunks of various optabs with
        !          7759:        appropriate `libfunc' field values.
        !          7760:        (init_optabs):  Use `init_integral_libfuncs' or `init_floating_libfuncs'
        !          7761:        wherever a group of consecutive optab entries need to all have their
        !          7762:        `libfunc' fields initialized.
        !          7763:        (init_optabs):  added missing code to handle all operations on/of
        !          7764:        XFmode and TFmode operands.
        !          7765: 
        !          7766: Mon Jun 22 06:40:32 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7767: 
        !          7768:        * rs6000.h (MEMORY_MOVE_COST): Increase to 6, from 4.
        !          7769:        (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS): Add new reg
        !          7770:        classes SPEC_OR_GEN_REGS and NON_FLOAT_REGS.
        !          7771: 
        !          7772:        * rs6000.h (EXTRA_CONSTRAINT): Don't use indirect_operand; instead
        !          7773:        check explicitly.
        !          7774: 
        !          7775:        * rs6000.md (divmod): Use "2" constraint instead of using "q"
        !          7776:        twice.
        !          7777:        (tablejump): Constraint of "r" should be "l".
        !          7778: 
        !          7779:        * emit-rtl.c (init_emit): Show that all pointers into the frame are
        !          7780:        pointer registers.
        !          7781: 
        !          7782: Mon Jun 22 04:20:26 1992  Richard Stallman  ([email protected])
        !          7783: 
        !          7784:        * va-sparc.h (va_arg): Rename local identifiers to start with __.
        !          7785: 
        !          7786: Sun Jun 21 14:51:42 1992  Richard Stallman  ([email protected])
        !          7787: 
        !          7788:        * fold-const.c (real_value_truncate): New function.
        !          7789:        All calls to REAL_VALUE_TRUNCATE changed to use this function.
        !          7790: 
        !          7791:        * reload1.c (reload): Record which insn attains each maximum need.
        !          7792:        If can't find a spill, call spill_failure and return 1.
        !          7793:        (spill_failure): New subroutine.
        !          7794:        * global-alloc.c (global_alloc): Return 1 if reload returned 1.
        !          7795:        * toplev.c (rest_of_compilation): If they return nonzero, give up
        !          7796:        compiling this function.
        !          7797: 
        !          7798:        * c-decl.c (duplicate_decls): Never warn if redeclaring
        !          7799:        a predeclared function.  Use the new declaration's types
        !          7800:        but keep any predeclared volatile flag.
        !          7801:        If redeclaring builtin function, use new declaration's type.
        !          7802:        If an old decl becomes volatile, fix the DECL_RTL.
        !          7803:        * varasm.c (make_var_volatile): New function.
        !          7804: 
        !          7805:        * configure (mips-sony-bsd): Use xm-mips.h.
        !          7806:        * xm-mipsbsdn.h: File deleted.
        !          7807: 
        !          7808:        * protoize.c (process_aux_info_file): Simplify logic for calling
        !          7809:        gen_aux_info_file.  Get rid of the label `retry'.
        !          7810: 
        !          7811:        * m68ksgs.h (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP):
        !          7812:        Override for sgs syntax.
        !          7813: 
        !          7814: Sun Jun 21 14:06:41 1992  Brendan Kehoe  ([email protected])
        !          7815: 
        !          7816:        * va-sparc.h (va_arg): Use a character array of size TYPE for
        !          7817:        `d' in the union, and return its dereference as TYPE.
        !          7818: 
        !          7819: Sun Jun 21 14:04:36 1992  Wilson Tien  (wtien at urbana.mcd.mot.com)
        !          7820: 
        !          7821:        * m68k.c (print_operand_address) [MOTOROLA]: Use .w and .l, not :w, :l.
        !          7822: 
        !          7823: Sat Jun 20 06:32:11 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)
        !          7824: 
        !          7825:        * stor-layout.c (get_best_mode): If SLOW_BYTE_ACCESS is true, return
        !          7826:        widest mode (but no wider than UNITS_PER_WORD) that meets all
        !          7827:        the conditions.
        !          7828: 
        !          7829:        * combine.c (make_extraction): Always ensure we have a SUBREG when
        !          7830:        we make a STRICT_LOW_PART.
        !          7831: 
        !          7832:        * varasm.c (const_hash, compare_constant_1, record_constant_1):
        !          7833:        Handle case when TREE_VALUE of a constructor is zero.
        !          7834:        (output_constant): Use CONSTRUCTOR_ELTS.
        !          7835: 
        !          7836:        * cse.c (cse_insn): Memory is not invalidated by a constant
        !          7837:        subroutine call.
        !          7838:        (delete_dead_from_cse): Correctly check for being within a
        !          7839:        libcall block.
        !          7840: 
        !          7841:        * cse.c (canon_reg): Call validate_change with IN_GROUP equal to 1.
        !          7842:        (cse_insn): Call apply_change_group after canon_reg.
        !          7843:        When canonicalizing, call validate_change with IN_GROUP equal to
        !          7844:        one and also call when canon_reg would.
        !          7845: 
        !          7846:        * combine.c (subst, shift cases): Use force_to_mode in
        !          7847:        SHIFT_COUNT_TRUNCATED case.
        !          7848: 
        !          7849:        * rs6000.md: Add new pattern to split move of large constant.
        !          7850: 
        !          7851:        * cse.c (delete_dead_from_cse): Really delete insn instead of 
        !          7852:        turning it into a NOTE.
        !          7853: 
        !          7854:        * romp.md (shift patterns): Use QImode for count operand.
        !          7855: 
        !          7856: Sat Jun 20 06:31:21 1992  Tom Wood  ([email protected])
        !          7857: 
        !          7858:        * a29k.md (storehinhww): Use inhw not inbyte.
        !          7859: 
        !          7860: Thu Jun 18 16:01:56 1992  Richard Kenner  ([email protected])
        !          7861: 
        !          7862:        * protoize.c (WIFEXITED, WEXITSTATUS): Delete unused macros.
        !          7863: 
        !          7864:        * combine.c (subst): If comparison operator has floating-point
        !          7865:        result, adjust the value returned by simplify_relational_operation
        !          7866:        accordingly.
        !          7867:        * integrate.c (subst_constants): Likewise.
        !          7868:        * loop.c (get_condition): Likewise.
        !          7869:        * cse.c (fold_rtx): Likewise.
        !          7870:        When returning TRUE or FALSE, handle comparisons returning
        !          7871:        floating-point.
        !          7872:        (find_comparison_args): Handle comparisons returning FP values;
        !          7873:        only look at STORE_FLAG_VALUE for comparisons returning integers.
        !          7874: 
        !          7875:        * combine.c (try_combine, subst): Pass both comparison arguments
        !          7876:        to SELECT_CC_MODE.
        !          7877:        * i386.h, i960.h, i960.c, mips.h, pa.h, pa.c, rs6000.h:
        !          7878:        Add second argument to SELECT_CC_MODE.
        !          7879:        * sparc.h, sparc.c: Likewise.
        !          7880: 
        !          7881:        * cse.c (insert_regs): Make a quantity for the register in a 
        !          7882:        SUBREG if it doesn't have one.
        !          7883:        (fold_rtx, case SUBREG): Always try to find a constant equivalent
        !          7884:        for a SUBREG; try for CONST_DOUBLE as well.
        !          7885:        (cse_insn): Call insert_regs on DEST if it is a SUBREG.
        !          7886: 
        !          7887: Thu Jun 18 15:01:29 1992  Mike Stump  ([email protected])
        !          7888: 
        !          7889:        * c++: Allow for better quoting and -v handling.
        !          7890: 
        !          7891: Thu Jun 18 14:49:20 1992  Tom Wood  ([email protected])
        !          7892: 
        !          7893:     For RMS:
        !          7894:        * varasm.c: Declare text_section and readonly_data_section.
        !          7895: 
        !          7896:        * dpx2.h (CPP_SPEC): Define __HAVE_68881__ unless -msoft-float.
        !          7897:        DPX/2 machines all have a 68882.
        !          7898: 
        !          7899:        * x-i386sco (RCCFLAGS): Use -DNULL=0 to avoid suurious warnings
        !          7900:        from rcc.
        !          7901: 
        !          7902:        * seq386.h (SIZE_TYPE): The Sequent running Dynix uses int for size_t.
        !          7903: 
        !          7904: Thu Jun 18 14:36:41 1992  Mike Stump  ([email protected])
        !          7905: 
        !          7906:        Merge in Cygnus sources...
        !          7907: 
        !          7908:        Fri Jun  5 15:00:55 1992  Mike Stump  (mrs at cygnus.com)
        !          7909: 
        !          7910:        * cp-typeck.c (build_c_cast): When casting, propagate const'ness
        !          7911:        from cast type.  When casting to a reference to T, really just
        !          7912:        cast to T.
        !          7913: 
        !          7914:        * cp-cvt.c (build_up_reference): Make a copy of a node before
        !          7915:        changing it.  Only propagate the const bit if we are not
        !          7916:        subverting it.
        !          7917: 
        !          7918:        Fri Jun  5 14:36:19 1992  Mike Stump  (mrs at cygnus.com)
        !          7919: 
        !          7920:        * cp-cvt.c (build_up_reference): When casting away const on
        !          7921:        references, do not report an error.
        !          7922: 
        !          7923:        Fri Jun  5 13:26:11 1992  Mike Stump  (mrs at cygnus.com)
        !          7924: 
        !          7925:        * cp-init.c (build_new): Handle new placement with arrays.
        !          7926: 
        !          7927:        Thu Jun  4 08:26:44 1992  Mike Stump  (mrs at cygnus.com)
        !          7928: 
        !          7929:        * cp-search.c (compute_visibility): DERIVED_FROM_P had its
        !          7930:        arguments reversed, switched them to be in the right order.
        !          7931:        Fixes visibility on protected members.
        !          7932: 
        !          7933:        Wed Jun  3 14:45:40 1992  Mike Stump  (mrs at cygnus.com)
        !          7934: 
        !          7935:        * cp-parse.y (unary_expr): Make it illegal to use delete on
        !          7936:        a pointer to a const object.  With help from Brendan Kehoe.
        !          7937: 
        !          7938:        Wed Jun  3 13:25:26 1992  Ken Raeburn  ([email protected])
        !          7939: 
        !          7940:        * cp-parse.y (template_instantiate_once): Set
        !          7941:        CLASSTYPE_GOT_SEMICOLON to eliminate messages about missing
        !          7942:        semicolons.
        !          7943: 
        !          7944:        * cp-decl.c (start_function): Don't emit error message for missing
        !          7945:        semicolon after class decl; that syntax (declaring both class and
        !          7946:        function returning that type) should be legal.  Do emit a warning if
        !          7947:        it's not an anonymous name.
        !          7948: 
        !          7949:        Mon Jun  1 18:08:09 1992  Mike Stump  (mrs at cygnus.com)
        !          7950: 
        !          7951:        Sat May 30 15:38:54 1992  Brendan Kehoe  ([email protected])
        !          7952: 
        !          7953:        * cp-decl.c (grokdeclarator): Don't allow main to be static.
        !          7954: 
        !          7955:        Mon Jun  1 17:52:24 1992  Mike Stump  (mrs at cygnus.com)
        !          7956: 
        !          7957:        Sat May 30 15:38:54 1992  Brendan Kehoe  ([email protected])
        !          7958: 
        !          7959:        * cp-decl.c (poplevel): Use DECL_INITIAL to detect undef label
        !          7960:        instead of DECL_SOURCE_LINE.
        !          7961: 
        !          7962:        Mon Jun  1 17:22:54 1992  Mike Stump  (mrs at cygnus.com)
        !          7963: 
        !          7964:        * cp-parse.y (unary_expr): Don't allow old placement syntax(with {})
        !          7965:        nor dynamic with new (with ()) new placement syntax.  Completes May 27
        !          7966:        fix.
        !          7967: 
        !          7968:        Mon Jun  1 13:57:28 1992  Mike Stump  (mrs at cygnus.com)
        !          7969: 
        !          7970:        * cp-type2.c (digest_init): Trailing '\0' is never ignored in
        !          7971:        initializations using strings in ANSI draft C++ unlike ANSI C.
        !          7972: 
        !          7973:        Mon Jun  1 07:18:13 1992  Michael Tiemann  (tiemann at rtl.cygnus.com)
        !          7974: 
        !          7975:        * cp-decl.c (pushdecl): Re-fix May 12 change regarding DECL_CONTEXT.
        !          7976:        * cp-call.c (build_method_call): Go back to using DECL_CONTEXT
        !          7977:        instead of DECL_CLASS_CONTEXT.  DECL_CONTEXT says when a function
        !          7978:        was first declared virtual in a class, which is needed information
        !          7979:        in case the virtual function comes from a virtual baseclass (because
        !          7980:        the derived class won't have a vtable entry for that function (if it
        !          7981:        has a vtable at all!)).
        !          7982: 
        !          7983:        Wed May 27 17:05:50 1992  Mike Stump  (mrs at cygnus.com)
        !          7984: 
        !          7985:        * cp-parse.y (unary_expr): Handle new placement syntax, desupport
        !          7986:        the old placement syntax with a pedwarn.
        !          7987: 
        !          7988:        Tue May 26 17:30:28 1992  Mike Stump  (mrs at cygnus.com)
        !          7989: 
        !          7990:        Thu May 21 17:13:38 1992  Michael Tiemann  (tiemann at cygnus.com)
        !          7991: 
        !          7992:        * cp-decl.c (grok_enum_decls): Allow reference to nested enums from
        !          7993:        other classes for NICHL.
        !          7994: 
        !          7995:        Tue May 26 15:31:30 1992  Mike Stump  (mrs at cygnus.com)
        !          7996: 
        !          7997:        * cp-*.[chy]: Always include "assert.h" and not <assert.h> to
        !          7998:        be consistent.
        !          7999: 
        !          8000:        Tue May 26 10:07:02 1992  Mike Stump  (mrs at cygnus.com)
        !          8001: 
        !          8002:        * cp-parse.y (return_init): Fix simple typo that caused '='
        !          8003:        initialized named return values to fail.
        !          8004: 
        !          8005:        Mon May 25 11:42:18 1992  Mike Stump  (mrs at cygnus.com)
        !          8006: 
        !          8007:        * cp-parse.y (component_decl): Handle anonymous unions as before,
        !          8008:        except check to make sure it is really an anonymous union.
        !          8009: 
        !          8010:        Sat May 23 23:37:38 1992  Mike Stump  (mrs at cygnus.com)
        !          8011: 
        !          8012:        * cp-tree.c (layout_basetypes): Don't core dump on erroneous input.
        !          8013: 
        !          8014:        Sat May 23 22:04:31 1992  Mike Stump  (mrs at cygnus.com)
        !          8015: 
        !          8016:        * cp-typeck.c (c_expand_start_case): build_type_conversion can
        !          8017:        return a NULL_TREE, so don't try and find a code or type of it.
        !          8018: 
        !          8019:        Wed May 20 09:09:08 1992  Michael Tiemann  ([email protected])
        !          8020: 
        !          8021:        * cp-call.c (build_method_call): Use DECL_CLASS_CONTEXT, not
        !          8022:        DECL_CONTEXT to find the class in which FUNCTION was declared (for
        !          8023:        non-virtual calls).
        !          8024: 
        !          8025:        Tue May 19 02:08:39 1992  Mike Stump  (mrs at cygnus.com)
        !          8026: 
        !          8027:        * cp-parse.y (component_decl): Remove some bogus code that
        !          8028:        prevents empty nested union definitions from compiling.
        !          8029: 
        !          8030:        Tue May 19 01:08:23 1992  Mike Stump  (mrs at cygnus.com)
        !          8031: 
        !          8032:        * cp-decl.c (grokfndecl): Propagate volatile from type of
        !          8033:        function out to the decl for the function.
        !          8034: 
        !          8035:        Mon May 18 17:19:39 1992  Mike Stump  (mrs at rtl.cygnus.com)
        !          8036: 
        !          8037:        * cp-search.c (get_binfo): Since unions cannot participate in
        !          8038:        inheritance relationships, return 0 instead of aborting.
        !          8039: 
        !          8040:        Fri May 15 13:37:40 1992  Mike Stump  (mrs at cygnus.com)
        !          8041: 
        !          8042:        * cp-parse.y (template_type_name): Handle
        !          8043:        template<class T> class task { friend task<T>* preempt(task<T>*); };
        !          8044:        syntax.
        !          8045: 
        !          8046:        * cp-pt.c (lookup_template_class): Ditto.
        !          8047: 
        !          8048:        Thu May 14 22:54:17 1992  Mike Stump  (mrs at cygnus.com)
        !          8049: 
        !          8050:        * cp-tree.c (layout_basetypes): Don't warn about non-virtual
        !          8051:        destructors unless the user asks with -Wall.
        !          8052: 
        !          8053:        Thu May 14 22:38:54 1992  Mike Stump  (mrs at cygnus.com)
        !          8054: 
        !          8055:        * cp-type2.c (build_functional_cast): exp may be an error_mark_node,
        !          8056:        don't crash when it is.
        !          8057: 
        !          8058:        Thu May 14 18:56:26 1992  Mike Stump  (mrs at cygnus.com)
        !          8059: 
        !          8060:        * cp-decl.c (hack_incomplete_structures): Test for underflow
        !          8061:        before decreamenting n_incomplete in current_binding_level, since
        !          8062:        it is unsigned. 
        !          8063: 
        !          8064:        Tue May 12 15:52:49 1992  Mike Stump  (mrs at cygnus.com)
        !          8065: 
        !          8066:        Mon May 11 14:10:50 1992  Ron Guilmette (rfg at ncd.com)
        !          8067: 
        !          8068:        * cp-decl.c (poplevel): Reconciled with recent changes made to the
        !          8069:        `poplevel' routine in c-decl.c.  The changes here cause LABEL_DECL
        !          8070:        nodes to be attached (as the BLOCK_VARS chain) to the BLOCK node
        !          8071:        which represent the outermost scope of the function.
        !          8072: 
        !          8073:        Mon May 11 12:35:44 1992  Ron Guilmette  (rfg at ncd.com)
        !          8074: 
        !          8075:        * cp-class.c (finish_struct): Check DECL_CONTEXT to see if it is
        !          8076:        any sort of a type (e.g. struct *or* union) rather than just
        !          8077:        checking it to see if it's a RECORD_TYPE.
        !          8078:        * cp-decl.c (pushdecl): Set DECL_CONTEXT of pushed ..._DECL node,
        !          8079:        just as is done in c-decl.c.
        !          8080:        (pushdecl): Delete useless variable `cntxt'.
        !          8081:        (finish_decl): Set TREE_USED rather than DECL_FROM_INLINE in order
        !          8082:        to prevent "unused" warnings.
        !          8083:        (finish_function): Check DECL_CONTEXT to see if it is a type.
        !          8084:        (finish_function): Fixed indentation problem.
        !          8085:        * cp-gc.c (build_m_desc): Check DECL_CONTEXT to see if it is a type.
        !          8086:        * cp-init.c (build_virtual_init): Fix indentation.
        !          8087:        * cp-lex.c (store_pending_inline): Check DECL_CONTEXT to see if it
        !          8088:        is a type.
        !          8089:        * cp-pt.c (tsubst, do_pending_expansions): Check DECL_CONTEXT to see
        !          8090:        if it is a type.
        !          8091:        * cp-typeck.c (mark_addressable): Check DECL_CONTEXT to see if it is
        !          8092:        any sort of a type (e.g. struct *or* union) rather than just
        !          8093:        checking it to see if it's a RECORD_TYPE.
        !          8094: 
        !          8095:        Tue May 12 08:52:06 1992  Michael Tiemann  ([email protected])
        !          8096: 
        !          8097:        * cp-typeck.c (build_component_ref): Call `break_out_cleanups'.
        !          8098:        Also clean up indentiation.
        !          8099: 
        !          8100:        Mon May 11 23:14:04 1992  Mike Stump  (mrs at cygnus.com)
        !          8101: 
        !          8102:        * cp-decl.c (pushtag): Handle structure tags in the same way as the
        !          8103:        C front-end.  This completes a change that rms put in on 3/12/92 and
        !          8104:        I put in the Cygnus tree on 3/13/92 and Mark Eichin took back out on
        !          8105:        3/18/92.
        !          8106: 
        !          8107:        Sun May  3 00:29:59 1992  Mike Stump  (mrs at cygnus.com)
        !          8108: 
        !          8109:        * cp-lex.c (copy_lang_decl, store_pending_inline): Cast
        !          8110:        arguments to bcopy to be char *.
        !          8111: 
        !          8112:        Fri May  1 12:22:31 1992  Michael Tiemann  ([email protected])
        !          8113: 
        !          8114:        * cp-init.c (expand_aggr_init, expand_vec_init): When comparing
        !          8115:        array types, use `comptypes' instead of ==, since two array types
        !          8116:        may be structurally identical but not == if one was defaulted from
        !          8117:        an initializer.
        !          8118: 
        !          8119:        Wed Apr 29 01:25:25 1992  Mike Stump  (mrs at cygnus.com)
        !          8120: 
        !          8121:        * cp-init.c (do_friend): Check that PREVIOUS_DECL is non-NULL.
        !          8122: 
        !          8123: Thu Jun 18 14:15:07 1992  Torbjorn Granlund  ([email protected])
        !          8124: 
        !          8125:        * pa.md (insv): Use `+' for operand 0 constraint.
        !          8126: 
        !          8127: Thu Jun 18 13:39:22 1992  Michael Meissner  ([email protected])
        !          8128: 
        !          8129:        * mips.h (MIPS_VERSION): Bump Meissner version # to 20.
        !          8130:        (final_prescan_insn): Add declaration.
        !          8131:        (FINAL_PRESCAN_INSN): Just call final_prescan_insn.
        !          8132:        (CONST_OK_FOR_LETTER_P): Rewrite some tests, so that they will
        !          8133:        work on host systems with 64 bit integers.
        !          8134: 
        !          8135:        * mips.c (large_int): Rework, so that we don't get funny boundary
        !          8136:        conditions on systems with 64 bit integers.
        !          8137:        (mips_move_1word): Just use li to load constants that can be done
        !          8138:        with lui, instead of issuing the lui, since the GAS bug that
        !          8139:        generated two instructions has been fixed.
        !          8140:        (final_prescan_insn): Move the checking for filling the delay
        !          8141:        slots here from the FINAL_PRESCAN_INSN macro.
        !          8142: 
        !          8143:        * mips.md (andsi3, iorsi3, xorsi3): Make the constraints match
        !          8144:        the real machine (the predicate still is more general in order
        !          8145:        to optimize bitfields at the expense of not CSE'ing large
        !          8146:        constants used in logical ops, and making reload load it into
        !          8147:        a scratch register).  Don't use $1 as a temporary register any
        !          8148:        more.
        !          8149: 
        !          8150:        * varasm.c (decode_reg_name): If `memory' return -4.
        !          8151: 
        !          8152:        * stmt.c (expand_asm_operands): If `memory' is used as a clobbered
        !          8153:        register, emit a (clobber (const_int 0)) to force the compiler not
        !          8154:        to cache memory values in registers across the assembly
        !          8155:        instruction(s).
        !          8156: 
        !          8157:        * mips-tfile.c (read_line): Semicolons within strings are not
        !          8158:        counted as statement separators.
        !          8159: 
        !          8160:        * collect2.c (scan_prog_file, OSF/rose case): Cast pointer arguments
        !          8161:        to bcopy to generic * to avoid warnings.
        !          8162: 
        !          8163: Thu Jun 18 12:04:53 1992  David J. MacKenzie  ([email protected])
        !          8164: 
        !          8165:        * c++: If given -v with no file args, don't pass the libraries to
        !          8166:        gcc.
        !          8167: 
        !          8168: Thu Jun 18 10:34:22 1992  Tom Wood  ([email protected])
        !          8169: 
        !          8170:        * expr.c (expand_builtin, BUILT_IN_FSQRT): Emit queue of increment
        !          8171:        instructions before starting a sequence that may get thrown away.
        !          8172: 
        !          8173: See ChangeLog.5 for earlier changes.