Return to ChangeLog CVS log

Up to [GCC 1.x] / gcc

Annotation of gcc/ChangeLog, revision 1.1.1.18

1.1.1.18! root        1: Sun Dec 16 18:10:20 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !             2: 
        !             3:        * tm-i386vgas.h (ASM_OUTPUT_LABELREF): Do prepend `_' again.
        !             4: 
        !             5:        * tm-sun3.h (ASM_OUTPUT_FLOAT*, ASM_OUTPUT_DOUBLE*):
        !             6:        Use double_is_minus_zero to test for -0.0.
        !             7:        * out-m68k.c (double_is_minus_zero): New function.
        !             8: 
        !             9: Fri Dec 14 00:57:30 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !            10: 
        !            11:        * tm-sun3.h (ASM_OUTPUT_FLOAT*, ASM_OUTPUT_DOUBLE*):
        !            12:        Use `iszero' and `signbit' to check for -0.0.
        !            13: 
        !            14:        * recog.c (offsettable_address_p): Use OFFSETTABLE_ADDRESS_P.
        !            15:        * tm-i860.h (OFFSETTABLE_ADDRESS_P): Define this.
        !            16: 
        !            17: Wed Dec 12 16:11:05 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !            18: 
        !            19:        * gvarargs.h: Avoid duplicate inclusion using _VARARGS_H.
        !            20: 
        !            21:        * c-decl.c (grokdeclarator): Always promote short even if -mshort.
        !            22: 
        !            23: Tue Dec 11 23:12:51 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !            24: 
        !            25:        * expr.c (convert_move): Do compare before slt.
        !            26:        Handle destination not valid in slt.
        !            27: 
        !            28: Mon Dec 10 00:27:04 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !            29: 
        !            30:        * out-sparc.c (output_fp_move_double): Bugs in last change:
        !            31:        Use adj_offsettable_operand when possible.
        !            32:        Choose a reg other than fp to increment.
        !            33: 
        !            34: Sun Dec  9 23:21:05 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !            35: 
        !            36:        * cccp.c (collect_expansion): Don't check for /* */ concat here.
        !            37:        (macroexpand): Always use raw arg if traditional.
        !            38: 
        !            39: Wed Dec  5 13:52:16 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !            40: 
        !            41:        * optabs.c (expand_binop): Handle insn_before == 0.
        !            42: 
        !            43:        * Makefile (includes): Export LIB.
        !            44: 
        !            45: Tue Dec  4 21:27:00 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !            46: 
        !            47:        * loop.c (consec_sets_giv): Give proper type to force, force2.
        !            48: 
        !            49: Mon Dec  3 15:57:19 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !            50: 
        !            51:        * cccp.c (special_symbol): Use time_t as type of t.
        !            52: 
        !            53: Sun Dec  2 16:43:31 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !            54: 
        !            55:        * config.gcc (tower): New alternative.
        !            56:        * tm-tower.h, tm-tower-as.h, xm-tower.h: New files.
        !            57: 
        !            58:        * stddef.h (ptrdiff_t): Prevent redefinition, as with size_t.
        !            59:        (size_t): Define all the macros used to prevent redefinition.
        !            60: 
        !            61: Fri Nov 30 14:25:49 1990  Michael Meissner  (meissner at osf.org)
        !            62: 
        !            63:        * out-mips.c (init_cumulative_args, function_arg_advance,
        !            64:        function_arg, function_arg_partial_nregs): Type CUMULATIVE_ARGS is
        !            65:        now a pointer to a structure instead of a structure.  New field
        !            66:        arg_words tracks number of words consumed so far and arg_number just
        !            67:        tracks physical numbers of arguments.  Make four single precision
        !            68:        floating point arguments passed via prototypes use $f12, $f14, $6,
        !            69:        and $7, just like mips cc.
        !            70: 
        !            71:        * tm-mips.h (INIT_CUMULATIVE_ARGS, FUNCTION_ARG_ADVANCE,
        !            72:        FUNCTION_ARG, FUNCTION_ARG_PARTIAL_NREGS): Type CUMULATIVE_ARGS is
        !            73:        now a pointer to a structure instead of a structure, and storage is
        !            74:        allocated via alloca.
        !            75: 
        !            76: Thu Nov 29 22:03:57 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !            77: 
        !            78:        * tm-vax.h (BLOCK_PROFILER, FUNCTION_BLOCK_PROFILER): New macros.
        !            79: 
        !            80: Tue Nov 27 12:03:36 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !            81: 
        !            82:        * tm-hp9k320.h (STANDARD_STARTFILE_PREFIX): Don't alter if already set.
        !            83: 
        !            84: Tue Nov 27 12:28:45 1990  Michael Meissner  (meissner at osf.org)
        !            85: 
        !            86:        * out-mips.c (function_arg, function_arg_advance): Pass single
        !            87:        precision floating point numbers to prototyped functions by assuming
        !            88:        only one word is passed rather than two unless the argument is
        !            89:        passed in a floating point register.  This behavior matches the MIPS
        !            90:        C compiler.
        !            91: 
        !            92:        * tm-mips.h (CPP_SPEC): Add -D_MIPSEB -D_SYSTYPE_SYSV -D_LANGUAGE_C
        !            93:        to SGI's CPP_SPEC.
        !            94:        (MIPS_DEBUGGING_INFO): New macro.
        !            95:        (PUT_SDB_*): Write debug information to the temporary file that
        !            96:        buffers the text section, instead of using the current output file.
        !            97: 
        !            98:        * tm-iris.h (CPP_PREDEFINES): Move -D_LANGUAGE_C from CPP_PREDEFINES
        !            99:        to CPP_SPEC since it's in the compiler name space, -ansi should not
        !           100:        disable it.
        !           101: 
        !           102: Mon Nov 26 18:37:39 1990  Michael Meissner  (meissner at osf.org)
        !           103: 
        !           104:        * mips.md (stack compressor peephole): Remove check against
        !           105:        stack_args_preallocated, since nobody sets it.
        !           106:        (anonymous add/subtract patterns): Explicitly use the assembler
        !           107:        temporary register if adding/subtracting a constant that won't fit
        !           108:        in 16 bits -- Silicon Graphics asm complains.
        !           109:        (fix_truncdfsi2, fix_truncsfsi2) Rewrite so that optimization of
        !           110:        repeated conversions of the same number do not generate an insn not
        !           111:        found error message (the generated insn was optimized to a gp->gp
        !           112:        register move inside of a parallel with a clobber of a hard fp
        !           113:        register).  The new insns describe the machine more faithfully, and
        !           114:        allow things like clobbering the fp register containing the value,
        !           115:        if it is the last use rather than using a specific hard register.
        !           116:        (fixuns_truncsfsi2, fixuns_truncdfsi2): New patterns to
        !           117:        automatically convert {single,double} precision to unsigned.
        !           118:        (anonymous move df/sf patterns): Put the operands to mfc1 in the
        !           119:        order the assembler likes them (always put gp reg first, even if
        !           120:        moving from gp register to fp register).
        !           121:        (wild_insn): Remove bogus insn which is commented out.
        !           122:        (jump): Remove TARGET_PIC code for now.
        !           123: 
        !           124:        * out-mips.c (toplevel, function_epilogue, mips_asm_file_end,
        !           125:        mips_output_external): If optimizing for the global pointer, emit
        !           126:        all code after processing the entire program, rather than emitting
        !           127:        the code at the end of the function.  Also, properly sized .extern's
        !           128:        are emitted for variables that are not defined in the current
        !           129:        module.  This is because the MIPS assembler uses single pass
        !           130:        semantics, and will emit a 2 instruction sequence for externals it
        !           131:        doesn't know anything about, and GCC emits data definitions at the
        !           132:        end of the program.  You can't just emit a properly sized .extern
        !           133:        either, because the assembler will complain if it sees an .extern
        !           134:        followed by a definition.  The ADDRESSABLE bit in the identifier
        !           135:        node for the external name is used to indicate whether a definition
        !           136:        for the name exists or not.  This replaces code which told the
        !           137:        assembler to preprocess the source, and include the same source
        !           138:        twice.
        !           139:        (sym_lineno): Add a new variable to keep trace of labels emitted
        !           140:        after each .loc for Silicon Graphics.
        !           141:        (function_prologue, function_epilogue, toplevel): Explicitly use
        !           142:        temporary registers for stack frames > 32K, since the Silicon
        !           143:        Graphics system doesn't automatically use $at if the value overflows,
        !           144:        also save an instruction or two for large stack frames.
        !           145:        (init_cumulative_args): Fix to work with the method types G++
        !           146:        produces as well as normal function types.
        !           147:        (compare_collect): In debug code, print the mode symbolically.
        !           148:        (trace): Take two additional arguments which are passed to fprintf.
        !           149:        (override_options): Remove unsupported -mpic code.
        !           150: 
        !           151:        * tm-decstatn.h (toplevel): Add a GNU copyright.
        !           152: 
        !           153:        * tm-iris.h (toplevel): Add a GNU copyright.
        !           154:        (CPP_SPEC): If -ansi, define __EXTENSIONS__.
        !           155:        (SGI_TARGET): Define this for other mips files.
        !           156:        (LABEL_AFTER_LOC): New macro to put a label after .loc.
        !           157:        (SET_FILE_NUMBER): New macro to force .file/.loc file # to be 1.
        !           158:        (ADJUST_STACK_SIZE): Don't deal with variable arguments.
        !           159: 
        !           160:        * tm-mips.h (*_SPEC): Add #ifdef's so other files can define their
        !           161:        own, without #undef.
        !           162:        (LINK_SPEC, ASM_SPEC): Pass -EB/-EL to assembler, linker so cross
        !           163:        compilers can be made from little endian mips to big endian mips and
        !           164:        vica versa.  Generate an error message if the wrong flag is used.
        !           165:        Do not pass -EB/-EL to Silicon Graphics assembler/linker.
        !           166:        (CPP_SPEC, MACHINE_NAME): Add Silicon Graphics defaults.
        !           167:        (MIPS_TEMP?_REGNUM): New macros for temporary registers used in the
        !           168:        prologue and epilogue if the stack frame is > 32K.
        !           169:        (ASM_OUTPUT_LABEL): If optimizing the global pointer, set the
        !           170:        addressable bit in the indentifier node, so that mips_asm_file_end
        !           171:        and mips_output_external can figure out if a particular identifier
        !           172:        really is external to the compiliation unit.
        !           173:        (ASM_OUTPUT_COMMON): Same change as ASM_OUTPUT_LABEL.
        !           174:        (ASM_OUTPUT_LOCAL): Same change as ASM_OUTPUT_LABEL.
        !           175:        (MACHINE_TYPE): Key off of OSF_OS and SGI_TARGET macros.
        !           176:        (TARGET_DEFAULT): For OSF/1 make -mgas and -G 0 default.
        !           177:        (STACK_POINTER_OFFSET): Define as 0.
        !           178:        (external variables): Declare flag_omit_frame_pointer,
        !           179:        sdb_label_count, mips_section_threshold, and sym_lineno.
        !           180:        (STACK_ARGS_ADJUST): Protect with an #ifndef.
        !           181:        (FUNCTION_PROFILER): Talk to the MIPS profiling routines the same
        !           182:        way the MIPS compiler does.
        !           183:        (INDIRECTABLE_ADDRESS_P): Allow disp+reg in addition to reg+disp.
        !           184:        (ASM_FILE_START): If optimizing for the global pointer, create a
        !           185:        temporay stream to hold text until program ends.  Put gcc_compiled.
        !           186:        in the data section.
        !           187:        (ASM_DECLARE_FUNCTION_NAME): Switch file streams used to the text
        !           188:        stream if optimizing for the global pointer.
        !           189:        (ASM_FILE_END): New macro to invoke mips_asm_file_end function.
        !           190:        (ASM_OUTPUT_SOURCE_LINE): Invoke macro LABEL_AFTER_LOC after .loc,
        !           191:        so that Silicon Graphics can put out a label after each .loc.
        !           192:        (ASM_OUTPUT_SOURCE_FILENAME): Invoke macro SET_FILE_NUMBER to set
        !           193:        the file number, so Silicon Graphics can hardwire this to 1.
        !           194:        (LABEL_AFTER_LOC, SET_FILE_NUMBER): Provide defaults if not Silicon
        !           195:        Graphics.
        !           196:        (ASM_OUTPUT_ASCII): Assign parameter to local variable, and remove
        !           197:        special \a, \v support.
        !           198:        (ASM_OUTPUT_IDENT): Dump #ident directives into .data.
        !           199: 
        !           200: Mon Nov 26 16:50:57 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           201: 
        !           202:        * cccp.c (main): Handle -w.
        !           203:        (warning): Do nothing if -w.
        !           204:        * gcc.c (compilers): Pass -w to cpp.
        !           205: 
        !           206: Sun Nov 25 16:37:10 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           207: 
        !           208:        * expr.c (emit_push_insn): Don't pad at all if space already allocated
        !           209:        and padding is upward.
        !           210: 
        !           211:        * gcc.c (do_spec_1): Handle %W{...}.
        !           212:        (compilers): Use %W{...} when passing -o option.
        !           213: 
        !           214: Sat Nov 24 16:50:11 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           215: 
        !           216:        * va-mips.h (va_list): Don't typedef if _VA_LIST_ is defined.
        !           217: 
        !           218: Wed Nov 21 15:57:48 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           219: 
        !           220:        * expr.c (expand_expr, expand_assignment):
        !           221:        Check for TREE_THIS_VOLATILE in ARRAY_REF.
        !           222:        expand_assignment failed to handle volstruct at all.
        !           223: 
        !           224: Tue Nov 20 17:47:22 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           225: 
        !           226:        * out-sparc.c (output_fp_move_double): Handle reg+reg address
        !           227:        when moving each word separately.
        !           228: 
        !           229:        * ns32k.md (addsi3): Don't use `addr' for very large displacements.
        !           230: 
        !           231:        * recog.c (address_operand): Don't allow volatile mem as indirect.
        !           232: 
        !           233: Mon Nov 19 14:55:44 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           234: 
        !           235:        * out-sparc.c (output_fp_move_double): Don't assume arrays are aligned.
        !           236: 
        !           237: Sun Nov 18 19:21:10 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           238: 
        !           239:        * expr.c (emit_push_insn): set extra to 0 once the padding is done,
        !           240:        to avoid padding twice.
        !           241: 
        !           242: Thu Nov 15 21:56:07 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           243: 
        !           244:        * math-68881.h (HUGE_VAL): Add extra braces on Sun.
        !           245: 
        !           246: Wed Nov 14 14:30:29 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           247: 
        !           248:        * c-decl.c (grokdeclarator): Don't ignore prototype if -traditional.
        !           249: 
        !           250: Tue Nov 13 18:16:47 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           251: 
        !           252:        * out-i860.c (output_block_move): Move .Lm%3 down one insn.
        !           253: 
        !           254: Wed Nov  7 00:01:18 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           255: 
        !           256:        * c-parse.y (component_decl_list): Allow missing semi at end.
        !           257: 
        !           258: Tue Nov  6 20:49:57 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           259: 
        !           260:        * expr.c (expand_builtin): For ffs, use mode of operand.
        !           261: 
        !           262:        * xm-iris.h (alloca): Don't define it.
        !           263:        * tm-iris.h (CPP_SPEC): Define variant symbols starting with _.
        !           264:        Define __EXTENSIONS__.
        !           265: 
        !           266:        * config.gcc (editing .gdbinit): Search current dir, not just srcdir.
        !           267: 
        !           268: Sun Nov  4 12:55:03 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           269: 
        !           270:        * i386.md (extend*): Take out last change.
        !           271:        Unix assembler rejects movsx...
        !           272: 
        !           273:        * expr.c (expand_expr): Special case for ignored volatile
        !           274:        failed to return.
        !           275: 
        !           276: Fri Nov  2 15:30:48 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           277: 
        !           278:        * va-i860.h (_VA_LIST): New macro avoids duplicate typedefs.
        !           279: 
        !           280:        * gnulib2.c (__builtin_saveregs): Add version for i860.
        !           281: 
        !           282:        * out-i860.c (output_block_move): Rearrange the copy loop.
        !           283:        Now uses two labels and a more complicated lead-in.
        !           284: 
        !           285: Thu Nov  1 18:15:11 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           286: 
        !           287:        * config.gcc (sun3, etc.): Assume os4 as default for Sun 3 and Sun 4.
        !           288: 
        !           289:        * math-68881.h (HUGE_VAL): Alternate definition for Suns.
        !           290: 
        !           291:        * tm-i386v.h (STARTFILE_SPEC, LIB_SPEC): Handle -posix.
        !           292:        (CPP_SPEC): New macro.
        !           293:        (LIB_SPEC): Handle -shlib.
        !           294: 
        !           295: Wed Oct 31 22:12:33 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           296: 
        !           297:        * config.gcc (ultrix):  New alternative.
        !           298: 
        !           299:        * i386.md (extend*): Change opcode to movsx.  Was movs.
        !           300: 
        !           301: Tue Oct 30 17:03:46 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           302: 
        !           303:        * tm-aix386.h (ASM_FILE_START): Don't do .noopt or .optim.
        !           304: 
        !           305:        * cccp.c (make_definition): Convert newline to newline-newline.
        !           306: 
        !           307: Mon Oct 29 11:43:46 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           308: 
        !           309:        * fixincludes: Fix missing semi in rusers.h.
        !           310: 
        !           311: Sun Oct 28 17:23:50 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           312: 
        !           313:        * cccp.c (macarg1): Don't skip the char after */.
        !           314: 
        !           315:        * Makefile: Put an `else' in every shell `if'.
        !           316: 
        !           317:        * m68k.md (zero-extend QI): Use gen_rtx, not change_address.
        !           318: 
        !           319:        * Makefile (USER_H): List va-*.h explicitly.
        !           320:        (toplev.o): Depend on RTL_H.
        !           321:        (expr.o): Depend on typeclass.h.
        !           322:        (stamp-*): Depend on move-if-change.
        !           323:        (install): Depend on various header files and gcc.1.
        !           324:        (gcc.o): Depend on gvarargs.h and obstack.h.
        !           325: 
        !           326:        * i860.md (movsf): Handle moving CONST_DOUBLE to cpu reg.
        !           327: 
        !           328: Fri Oct 26 11:16:03 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           329: 
        !           330:        * Makefile (libg): Add else to the if.
        !           331: 
        !           332: Thu Oct 25 21:17:05 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           333: 
        !           334:        * integrate.c (access_parm_map): Handle refs to all words of DF reg.
        !           335: 
        !           336: Wed Oct 24 13:50:13 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           337: 
        !           338:        * c-typeck.c (build_array_ref): Use main variant for value type.
        !           339: 
        !           340:        * expr.c (expand_expr): For ARRAY_REF, preserve const and volatile.
        !           341: 
        !           342:        * cccp.c (macarg1): Skip the */ that ends a comment.
        !           343: 
        !           344:        * cccp.c (rescan): Use newline_fix testing for comments before #.
        !           345:        (handle_directive): Likewise, in comments before directive name.
        !           346:        (rescan): Process macro when terminated by comment.
        !           347:        Ignore backslash-newline in C++ comment.
        !           348: 
        !           349: Tue Oct 23 20:35:13 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           350: 
        !           351:        * cccp.c (collect_expansion): Remove newline from error message.
        !           352:        Error for ## at beginning or end of definition.
        !           353: 
        !           354:        * m68k.md (zero-extend QI): When pushing, store value at 1(sp).
        !           355: 
        !           356: Mon Oct 22 13:07:31 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           357: 
        !           358:        * cccp.c (rescan): In the loop that handles numbers, discard \newline.
        !           359: 
        !           360:        * cccp.c (S_ISREG): Fix typo: do use the argument.
        !           361: 
        !           362:        * xm-sparc.h (alloca.h): Don't include if alloca already defined.
        !           363: 
        !           364: Sun Oct 21 16:28:04 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           365: 
        !           366:        * reload.c (find_equiv_regs): Reject reg that overlaps goal.
        !           367: 
        !           368:        * expmed.c (extract_bit_field): For big fields, make sure
        !           369:        value really goes in the target.
        !           370: 
        !           371: Fri Oct 19 13:21:25 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           372: 
        !           373:        * fold-const.c (split_tree): Use NEGATE_EXPR to negate *conp.
        !           374: 
        !           375:        * expr.c (emit_push_insn): Allow const0_rtx for multi-word constant.
        !           376: 
        !           377: Thu Oct 18 17:38:17 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           378: 
        !           379:        * reload1.c (choose_reload_regs): Cast reg class used as index.
        !           380: 
        !           381: Wed Oct 17 00:21:25 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           382: 
        !           383:        * stmt.c (push_structure_value, pop_structure_value): New fns.
        !           384:        * expr.c (expand_call): Use them if structure value needed.
        !           385: 
        !           386:        * gcc.c (do_spec_1): Null-terminate error message.
        !           387: 
        !           388:        * sdbout.c (sdbout_symbol): Handle subreg as DECL_RTL.
        !           389:        This happens for vars from the parms of inline functions.
        !           390:        * dbxout.c (dbxout_symbol): Likewise.
        !           391: 
        !           392: Tue Oct 16 13:22:05 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           393: 
        !           394:        * expmed.c (extract_bit_field, store_bit_field):
        !           395:        Handle fields wider than a word.
        !           396:        Restrict special case for word-sized field to aligned words.
        !           397: 
        !           398:        * stddef.h (size_t): Also inhibit if _SIZE_T_.
        !           399: 
        !           400:        * cccp.c (macarg1): If traditional, let backslash quote always.
        !           401: 
        !           402:        * fixincludes (CTRL): Don't put quotes around a quote.
        !           403: 
        !           404: Sun Oct 14 21:28:32 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           405: 
        !           406:        * flow.c (life_analysis): No hard regs for any pseudos live at setjmp.
        !           407: 
        !           408:        * c-decl.c (duplicate_decls): Don't suppress warning for fn defn
        !           409:        after implicit declaration, if fn has already been defined.
        !           410: 
        !           411: Thu Oct 11 13:15:36 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           412: 
        !           413:        * expr.c (saveregs_value): New variable.
        !           414:        (init_expr): Init the variable.
        !           415:        (expand_builtin): Don't call __builtin_saveregs twice in one function.
        !           416: 
        !           417:        * va-*.h: Rename all structure fields to start with __.
        !           418:        * va-pyr.h: Rename variables also.
        !           419:        (va_start): Delete the unmatched {.
        !           420:        (va_end): Now a nop.
        !           421: 
        !           422: Wed Oct 10 22:01:59 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           423: 
        !           424:        * va-sparc.h (__va_ctl): Rename fields to start with __.
        !           425: 
        !           426: Tue Oct  9 14:47:53 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           427: 
        !           428:        * flow.c (propagate_block): Include NOTE at end of block in scan.
        !           429: 
        !           430:        * fixincludes: Fix missing semicolon in rstat.h.
        !           431: 
        !           432: Mon Oct  8 13:09:40 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           433: 
        !           434:        * loop.c (eliminate_biv): Handle mult_val < 0 by reversing compare.
        !           435: 
        !           436:        * cccp.c (main): Handle .S when removing suffix for deps output.
        !           437: 
        !           438: Sun Oct  7 23:33:24 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           439: 
        !           440:        * tm-i386v.h (STARTFILE_SPEC): Handle -p here.
        !           441:        (LIB_SPEC): Not here.
        !           442: 
        !           443: Sun Sep 30 21:35:52 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           444: 
        !           445:        * print-tree.c (print_node_brief): Declare i for printing REAL_CST.
        !           446: 
        !           447: Sat Sep 29 18:40:08 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           448: 
        !           449:        * fixincludes: For link pointing outside /usr/include,
        !           450:        use $x rather than $dest.
        !           451: 
        !           452: Wed Sep 26 12:44:54 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           453: 
        !           454:        * tm-mips-news.h: New file.
        !           455: 
        !           456:        * out-i860.c (output_size_for_block_move): Don't decrement.
        !           457:        (output_block_move): Decrement initial storing address instead.
        !           458: 
        !           459:        * c-parse.y (yylex): Always try unsigned int if `u' is written.
        !           460: 
        !           461:        * tm-seq386.h (LINK_SPEC): Define it.
        !           462: 
        !           463:        * c-typeck.c (build_unary_op): Don't let &* make an lvalue.
        !           464: 
        !           465: Sun Sep 23 14:59:21 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           466: 
        !           467:        * cccp.c (S_ISREG): Define it unless overridden.
        !           468:        (main, finclude): Use that.
        !           469: 
        !           470:        * reload1.c (reload): If insn after a function call uses the
        !           471:        function value, and that reg is spilled, and the insn might
        !           472:        use it for reloading, add an extra need.
        !           473:        (reload_as_need): Detect such insns for new arg to choose_reload_regs.
        !           474:        (choose_reload_regs): In that case, don't choose function value reg.
        !           475: 
        !           476:        * tm-convex1.h, tm-convex2.h (CPP_SPEC): Define __NO_INLINE_MATH.
        !           477: 
        !           478: Sat Sep 22 14:01:00 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           479: 
        !           480:        * tree.c (build_index_type): Don't hash variable-bound type.
        !           481: 
        !           482:        * tm-aix386.h (LIB_SPEC): Different library name for -p.  Always -lc.
        !           483:        (LINK_SPEC): Don't pass -lg or -g.
        !           484:        (CPP_PREDEFINES): Define _I386 and _AIX; don't define unix.
        !           485:        (SDB_DEBUGGING_INFO): Define it.
        !           486:        (DBX_DEBUGGING_INFO): Undefine it.
        !           487:        (ASM_FILE_START): Output .noopt if not optimizing.
        !           488:        (PCC_BITFIELD_TYPE_MATTERS): Define it.
        !           489:        (FUNCTION_PROFILER): Add definition.
        !           490: 
        !           491: Thu Sep 20 13:16:39 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           492: 
        !           493:        * tm-hp9k320.h (PROFILE_BEFORE_PROLOGUE): Define it.
        !           494:        (FUNCTION_PROFILER): Don't redefine if not HPUX_ASM.
        !           495: 
        !           496: Tue Sep 18 22:46:02 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           497: 
        !           498:        * sdbout.c (sdbout_one_type): Don't output undefined structs, etc.
        !           499: 
        !           500: Mon Sep 17 13:35:45 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           501: 
        !           502:        * mips.md (movdf): Move words in opposite order if overlap.
        !           503: 
        !           504: Sun Sep 16 16:27:29 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           505: 
        !           506:        * toplev.c (rest_of_decl_compilation): Output TYPE_DECL here for sdb
        !           507:        only if top_level.
        !           508: 
        !           509:        * expr.c (expand_builtin): Error for __builtin_nextarg
        !           510:        if function definition doesn't have `...'.
        !           511: 
        !           512:        * c-typeck.c (build_conditional_expr): Don't skip arg promotion.
        !           513: 
        !           514: Fri Sep 14 17:26:59 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           515: 
        !           516:        * sdbout.c (plain_type_1): Save up array dims on the way out
        !           517:        in the reverse order.
        !           518:        (plain_type): Print the innermost ones, reversing them.
        !           519: 
        !           520: Thu Sep 13 16:00:05 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           521: 
        !           522:        * gstdarg.h: New name for stdarg.h.
        !           523:        * Makefile (install): Rename gstdarg.h while installing it.
        !           524: 
        !           525:        * fixincludes: Discard `.' from value of `files'.
        !           526: 
        !           527:        * sdbout.c (PUT_SDB_LAST_DIM): Get rid of SDB_DELIM.
        !           528:        (plain_type): Output accumulated array dims and size.
        !           529:        (plain_type_1): Eliminate arg NOSIZE.  Save up dims and size.
        !           530:        Call self rather than plain_type for pointers and functions.
        !           531:        (sdbout_array_type, sdbout_array_depth): Functions deleted.
        !           532: 
        !           533: Wed Sep 12 18:47:30 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           534: 
        !           535:        * expmed.c (expand_divmod): Use divmod insn for divide if appro.
        !           536: 
        !           537: Tue Sep 11 13:24:58 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           538: 
        !           539:        * gnulib.c (_bb_init_func): Library member now named _bb.
        !           540: 
        !           541: Mon Sep 10 13:07:39 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           542: 
        !           543:        * sdbout.c (plain_type_1): New argument NOSIZE.  Inhibits size output.
        !           544:        (sdbout_array_type): Call plain_type_1 directly; set NOSIZE.
        !           545: 
        !           546:        * sdbout.c (sdbout_array_type): New argument DEPTH.
        !           547:        Don't output more than SDB_MAX_DIM dimensions.
        !           548:        (sdbout_array_depth): New function.
        !           549:        (plain_type_1): Start DEPTH by calling sdbout_array_depth.
        !           550: 
        !           551: Sun Sep  9 18:05:56 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           552: 
        !           553:        * tm-mips.h (CPP_SPEC): Error for -EL and -EB.
        !           554: 
        !           555:        * sdbout.c (plain_type_1): Test KNOWN_TYPE_TAG with TREE_ASM_WRITTEN.
        !           556:        (sdbout_symbol): Call sdbout_one_type before the switch.
        !           557:        (sdbout_field_types): Look at targets of pointers.
        !           558:        (sdbout_one_type): Call sdbout_field_types.
        !           559: 
        !           560:        * stor-layout.c (layout_record): Update size_unit adding var to var.
        !           561: 
        !           562:        * tm-i386v4.h: New file.
        !           563: 
        !           564: Fri Sep  7 13:10:24 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           565: 
        !           566:        * cccp.c (STDC_VALUE): New macro, defaulting to 1.
        !           567:        (intialize_builtins): Use that.
        !           568: 
        !           569:        * print-tree.c (print_node): Correct first_rtl for SAVE_EXPR.
        !           570: 
        !           571:        * m68k.md (movqi): `st' does not set cc's.
        !           572: 
        !           573: Wed Sep  5 16:18:04 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           574: 
        !           575:        * Makefile (includes): Use proper directory.
        !           576: 
        !           577: Tue Sep  4 13:01:37 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           578: 
        !           579:        * c-decl.c (store_parm_decls): Let extra_warnings control
        !           580:        warnings about parms not declared.
        !           581: 
        !           582:        * local-alloc.c (block_alloc): Don't try to lower qty_birth
        !           583:        if reg_qty is negative.
        !           584: 
        !           585:        * flow.c (life_analysis): Move code to detect stack-adjust insns.
        !           586:        It was unreachable.
        !           587: 
        !           588:        * reload1.c (reload): Don't complete group with explicitly used reg.
        !           589: 
        !           590: Mon Sep  3 14:37:41 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           591: 
        !           592:        * Makefile (RANLIB): Don't specify the directory.
        !           593: 
        !           594:        * local-alloc.c (reg_classes_overlap_p): Cast enums to ints.
        !           595: 
        !           596: Fri Aug 31 17:09:38 1990  Michael Meissner  (meissner at osf.org)
        !           597: 
        !           598:        * mips.md (anonymous add insn before addsi3): Allow offsets from the
        !           599:        frame pointer to be >16 bits, just like the stack pointer.  This is
        !           600:        to prevent insn's not found generated when optimizing programs that
        !           601:        have stack frames more than 32K, and the optimizer wants to load the
        !           602:        address of an array into a register, it does so by generating a PLUS
        !           603:        insn with the appropriate offset.  This PLUS insn is never checked
        !           604:        to see if the machine can handle the offset.
        !           605:        (anonymous subtract insn before subsi3): same change as above.
        !           606:        (addsi3): Don't accept large constants with a !n constraint.  Just
        !           607:        reject any large constants, the anonymous add pattern before addsi
        !           608:        will catch references to the stack and frame pointers.
        !           609:        (subsi3): Same change as addsi3.
        !           610: 
        !           611: Sat Sep  1 16:14:31 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           612: 
        !           613:        * expr.c (convert_move): Don't forget to set `target'.
        !           614: 
        !           615: Fri Aug 31 14:37:36 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           616: 
        !           617:        * sdbout.c (sdbout_begin_block): Delete excess arg to sdbout_block.
        !           618: 
        !           619: Wed Aug 29 17:01:55 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           620: 
        !           621:        * local-alloc.c (combine_regs): Don't combine regs if classes
        !           622:        fail to overlap usefully, if either reg says preferred or nothing.
        !           623:        (reg_classes_overlap_p): New function.
        !           624: 
        !           625: Tue Aug 28 21:28:54 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           626: 
        !           627:        * sdbout.c (plain_type_1): Output .dim X,Y...; for multi-dim array.
        !           628:        (sdbout_array_dim): New recursive subroutine.
        !           629:        (PUT_SDB_DIM): Macro eliminated.
        !           630:        (PUT_SDB_START_DIM, PUT_SDB_NEXT_DIM, PUT_SDB_LAST_DIM): New macros.
        !           631:        * tm-3b1.h: Override PUT_SDB_START_DIM.
        !           632: 
        !           633: Sun Aug 26 21:28:20 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           634: 
        !           635:        * cccp.c (make_definition): Eliminate any backslash-newline.
        !           636: 
        !           637: Sat Aug 25 17:20:47 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           638: 
        !           639:        * tm-att386.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): New macros.
        !           640:        (BSS_SECTION_ASM_OP): New macro.
        !           641:        (ASM_OUTPUT_LOCAL): Call bss_section, don't just print .bss.
        !           642: 
        !           643: Fri Aug 24 17:16:28 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           644: 
        !           645:        * cse.c (rtx_cost): Cost of MEM depends on number of words.
        !           646: 
        !           647:        * i860.md (movsf, movdf): Allow moving G to m in constraints.
        !           648:        * tm-i860.h (CONST_COSTS): Make SFmode constant cheaper.
        !           649: 
        !           650: Thu Aug 23 14:19:20 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           651: 
        !           652:        * c-typeck.c (digest_initializer): No pedantic warning for string
        !           653:        and array of unsigned char.
        !           654: 
        !           655:        * tree.c (get_identifier): Do id_clash_len stuff if length equals that.
        !           656: 
        !           657: Wed Aug 22 15:06:11 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           658: 
        !           659:        * loop.c (scan_loop): Don't use REG_EQUAL notes as invariants
        !           660:        unless they come with REG_RETVAL notes.
        !           661: 
        !           662: Tue Aug 21 20:03:51 1990  Michael Meissner  (meissner at osf.org)
        !           663: 
        !           664:        * Makefile (install): Add code to build libg.a if it doesn't exist
        !           665:        when installing GCC.
        !           666: 
        !           667:        * out-mips.c (toplevel): add external declaration for asm_out_file,
        !           668:        and 2 new FILE *'s (asm_out_data_file, asm_out_text_file) so we can
        !           669:        switch between two files when optimizing for the global pointer.
        !           670:        Also add a structure type to hold the linked list of externs that
        !           671:        GCC wishes to emit.
        !           672: 
        !           673:        Everything between the function prologue and epilogue are written to
        !           674:        a temporary file, which is written to the normal output file after
        !           675:        the entire program is processed.  This is needed because the MIPS
        !           676:        assembler assumes that all externals should be referenced with a 2
        !           677:        instruction sequence instead of the faster 1 instruction sequence
        !           678:        off of the GP, unless a proper .extern proceeds any use.  We can't
        !           679:        emit the .extern because the assembler will complain if later there
        !           680:        is a definition for the variable, such as GCC puts out at the end of
        !           681:        the program.
        !           682: 
        !           683:        (compare_collect): print mode symbolically in debug code.
        !           684: 
        !           685:        (mips_output_external): Remove code which used the preprocessor to
        !           686:        handle the global pointer, and remember all externs in a linked list
        !           687:        for use at the end of the program.
        !           688: 
        !           689:        (mips_asm_file_end): If optimizing the global pointer, emit all
        !           690:        externals which don't have definitions as the appropriate sized
        !           691:        .extern, and then emit the code for functions that was written to a
        !           692:        temporary file, so that the code comes after the appropriate
        !           693:        definition or declaration.
        !           694: 
        !           695:        (function_epilogue): If optimizing for the global pointer, switch
        !           696:        the current output file to the data file after all of the epilogue
        !           697:        is written out.
        !           698: 
        !           699:        * tm-mips.h (ASM_SPEC): Duplicate ASM_SPEC into 2 #ifdef sections (one
        !           700:        for the little endian DECstation, and the other for everybody else
        !           701:        who uses the MIPS in a big endian mode), and pass the appropriate
        !           702:        -EL and -EB switches to the assembler.  This allows building a cross
        !           703:        compiler for a different endian MIPS.
        !           704: 
        !           705:        (LINK_SPEC): Pass -EL and -EB to linker, just like ASM_SPEC.
        !           706: 
        !           707:        (MACHINE_TYPE): For DECstation, specify "Ultrix Dec Mips" instead of
        !           708:        just "Dec Mips".
        !           709: 
        !           710:        (FUNCTION_PROFILER): Call _mcount in the appropriate MIPS fashion.
        !           711: 
        !           712:        (ASM_FILE_START): If optimizing for the global pointer, open a
        !           713:        temporary file to write the code to (see out-mips.c above).
        !           714: 
        !           715:        (ASM_DECLARE_FUNCTION_NAME): If optimizing for the global pointer,
        !           716:        switch the current output file to asm_out_text_file.
        !           717: 
        !           718:        (ASM_OUTPUT_COMMON): Remove the old code which used the preprocessor
        !           719:        to optimize for the global pointer.
        !           720: 
        !           721: Tue Aug 21 17:44:49 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           722: 
        !           723:        * make-cc1.com: Compile and link version.c.
        !           724: 
        !           725:        * expr.c (convert_move): Handle expand_unop retval not same as target.
        !           726: 
        !           727:        * reload.c (find_reloads): For register letters, don't win if BLK.
        !           728: 
        !           729:        * flow.c (mark_set_1, mark_used_regs): Update reg_first_use.
        !           730:        (allocate_for_life_analysis): Allocate and clear it.
        !           731:        * local-alloc.c (block_alloc): Calculate INSN_MAP.
        !           732:        Get first use of each reg from reg_first_use.
        !           733: 
        !           734:        * tm-vms.h (MAYBE_VMS_FUNCTION_PROLOGUE): Distinguish C from C++.
        !           735:        (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Add a const data section.
        !           736:        (ASM_OUTPUT_EXTERNAL): Use that section.
        !           737:        (SELECT_SECTION): Go to that section when appropriate.
        !           738: 
        !           739: Mon Aug 20 13:00:53 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           740: 
        !           741:        * gcc.c (process_command): Split -oFOO into two arguments.
        !           742: 
        !           743:        * out-mips.c, tm-mips.h: Changes by Meissner.
        !           744: 
        !           745:        * stmt.c (expand_asm_operands): Handle COMPONENT_REF and
        !           746:        ARRAY_REF directly as output operands.  Avoids crash if BLKmode.
        !           747: 
        !           748:        * tm-i386vgas.h: New file, copied from tm-i386gas.h.
        !           749:        (ASM_OUTPUT_LABELREF): Eliminate leading underscores.
        !           750:        (STARTFILE_SPEC, LIB_SPEC): Define as in tm-i386v.h.
        !           751:        (PCC_BITFIELD_TYPE_MATTERS): Likewise.
        !           752:        * config.gcc (i386-sysv-gas): Use the new file.
        !           753: 
        !           754:        * tm-i860.h (PRINT_OPERAND): Convert double to float
        !           755:        for SFmode operand.
        !           756:        (PRINT_OPERAND_EXTRACT_FLOAT): New macro.
        !           757: 
        !           758: Sun Aug 19 17:23:10 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           759: 
        !           760:        * c-parse.y (lineno): Delete definition--it's in toplev.
        !           761: 
        !           762:        * output.h: Make all variables extern.
        !           763: 
        !           764:        * tm-hp9k320bsd.h (CPP_SPEC): Def __HAVE_68881__ like __HAVE_FPU__.
        !           765: 
        !           766:        * fixincludes: Handle uses of _IO* followed by spaces.
        !           767:        Change redirections for cd when testing that directory exists.
        !           768: 
        !           769: Thu Aug 16 22:44:35 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           770: 
        !           771:        * out-sparc.c (output_scc_insn): Clear CC_IN_FCCR after
        !           772:        operation since setting a register to the result of a
        !           773:        floating-point comparision affects the INTEGER condition code
        !           774:        register.
        !           775: 
        !           776:        * stmt.c: fixup_gotos must ignore blocks started after the goto.
        !           777:        (block_start_count): New variable, and slot in some structures.
        !           778:        (expand_function_start): Initialize it.
        !           779:        (expand_start_bindings): Increment it and store in struct nesting.
        !           780:        (expand_goto): Store it in struct goto_fixup.
        !           781:        (fixup_gotos): Compare fixup's count with block's count.
        !           782: 
        !           783: Wed Aug 15 16:46:04 1990  Richard Stallman  (rms at mole.ai.mit.edu)
        !           784: 
        !           785:        * out-i860.c (output_size_for_block_move): Do subtract ALIGN.
        !           786: 
        !           787: Mon Aug 13 17:45:13 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           788: 
        !           789:        * tm-i860.h (GO_IF_LEGITIMATE_ADDRESS): Typo testing offset alignment.
        !           790: 
        !           791:        * config.gcc (sun3-mach): New alternative.
        !           792:        * tm-sun3mach.h: New file.
        !           793: 
        !           794:        * m68k.md (bfextu patterns): Set CC_NOT_NEGATIVE.
        !           795: 
        !           796: Sun Aug 12 14:25:23 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           797: 
        !           798:        * tree.h (enum built_in_function): Delete comma after last name.
        !           799:        * c-parse.h (enum rid): Likewise.
        !           800:        * expr.h (enum optab_methods): Likewise.
        !           801: 
        !           802:        * config.gcc (genix): Set target_machine.
        !           803:        * tm-genix.h (ASM_OUTPUT_DOUBLE): New overriding definition.
        !           804: 
        !           805: Thu Aug  9 15:19:17 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           806: 
        !           807:        * tm-hp9k320.h (CPP_SPEC): Define _HPUX_SOURCE if not ANSI.
        !           808:        (CPP_PREDEFINES): Don't define it here.
        !           809:        Do define alternatives with __ prepended.
        !           810: 
        !           811:        * tm-mips.h (CPP_SPEC): Don't do -I if -nostdinc.
        !           812: 
        !           813: Wed Aug  8 13:35:00 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           814: 
        !           815:        * cccp.c (do_define, do_undef): Warn if macro name is `defined'.
        !           816: 
        !           817:        * tm-mips.h (ASM_INT_OP): Add missing space.
        !           818: 
        !           819:        * tm-sun386i.h (ASM_IDENTIFY_GCC): If profiling, put a NOP after
        !           820:        gcc_compiled.
        !           821: 
        !           822: Tue Aug  7 12:19:46 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           823: 
        !           824:        * out-mips.c (need_ent_after_loc): Variable deleted.
        !           825:        (function_prologue): Output initial .ent and initial label.
        !           826:        * tm-mips.h: Add extern declarations.
        !           827:        (ASM_SPEC): No -nocpp if optimizing.
        !           828:        (STACK_ARGS_ADJUST): Round size up to 16.  Nothing else.
        !           829:        (PRINT_OPERAND_ADDRESS): Eliminate irrelevant things
        !           830:        such as scaled indexing.
        !           831:        (ASM_OUTPUT_SOURCE_FILENAME): Simplify code.
        !           832:        (ASM_OUTPUT_SOURCE_LINE): Flush code to handle need_ent_after_loc.
        !           833:        (ASM_DECLARE_FUNCTION_NAME): Likewise.
        !           834:        (*_SECTION_ASM_OP): Delete the \n.
        !           835: 
        !           836:        * pyr.md (extendsfdf2, truncsfdf2, float*, fix*): Use `&'.
        !           837: 
        !           838: Mon Aug  6 12:46:07 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           839: 
        !           840:        * c-decl.c (grokdeclarator): Don't warn if initialized fcn is extern.
        !           841:        (start_decl): Don't warn at all for initialized extern.
        !           842: 
        !           843:        * final.c (final_start_function): Handle PROFILE_BEFORE_PROLOGUE.
        !           844:        (profile_function): New subroutine.
        !           845: 
        !           846:        * tm-i386sco.h: New file.
        !           847:        * config.gcc (i386-sco): New alternative.
        !           848: 
        !           849: Sun Aug  5 12:36:46 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           850: 
        !           851:        * stor-layout.c (layout_record, layout_union): Test value of 
        !           852:        PCC_BITFIELD_TYPE_MATTERS for being nonzero, if it is defined.
        !           853:        * tm-*.h: Define with value 1.
        !           854:        * tm-vax.h (PCC_BITFIELD_TYPE_MATTERS): Depends on -mvaxc-alignment.
        !           855: 
        !           856:        * proto.h: New file.
        !           857:        * Makefile.in (USER_H): Add that file.
        !           858: 
        !           859:        * loop.c (other_reg_use_p): Change && to || in test at beginning.
        !           860: 
        !           861: Fri Aug  3 00:18:35 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           862: 
        !           863:        * gcc.c (ENDFILE_SPEC): New macro.
        !           864:        (do_spec_1): Handle %E.
        !           865:        (link_spec): Use %E.
        !           866: 
        !           867:        * xm-i386.h (alloca): Define without arg.
        !           868: 
        !           869:        * Makefile (RANLIB): New var, used in various places.
        !           870: 
        !           871:        * gnulib2.c (__bb_init_func): Add dummy function to prevent warning.
        !           872: 
        !           873:        * Makefile (install): Look for ranlib in both places.
        !           874:        (stage1, ...): Likewise.  And run ranlib even after ln.
        !           875: 
        !           876: Tue Jul 31 23:59:45 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           877: 
        !           878:        * tm-encore.h (FUNCTION_PROFILER): Override, putting `.' in label.
        !           879: 
        !           880: Mon Jul 30 13:52:45 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           881: 
        !           882:        * gnulib2.c (__floatdidf): Fix typo.
        !           883: 
        !           884: Sun Jul 29 16:05:27 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           885: 
        !           886:        * tm-vms.h (ASM_OUTPUT_EXTERNAL): Check TREE_READONLY.
        !           887: 
        !           888:        * xm-vms.h (alloca): Use built-in alloca.
        !           889: 
        !           890: Fri Jul 27 15:07:00 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           891: 
        !           892:        * combine.c (subst): Handle (ASHIFT 1 x) in (EQ (AND ... y) 0)
        !           893:        only if little-endian.
        !           894: 
        !           895: Thu Jul 26 17:22:56 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           896: 
        !           897:        * tm-mips.h (ASM_OUTPUT_SOURCE_LINE): Delete pic stuff (was for v2).
        !           898: 
        !           899:        * fold-const.c (rshift_double): Reset carry after each shift of
        !           900:        one bit.
        !           901: 
        !           902: Wed Jul 25 16:21:08 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           903: 
        !           904:        * tm-vms.h (ASM_OUTPUT_EXTERNAL): Use assemble_name.
        !           905: 
        !           906: Tue Jul 24 15:35:04 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           907: 
        !           908:        * c-typeck.c (build_binary_op_nodefault): Allow compare of any
        !           909:        pointer with const void *, etc.
        !           910: 
        !           911:        * reload1.c (reload): Don't use fixed reg or frame pointer in group.
        !           912: 
        !           913:        * c-decl.c (grokdeclarator): Error for initialized parm.
        !           914: 
        !           915: Mon Jul 23 14:33:53 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           916: 
        !           917:        * Makefile (install): chmod only the header files.
        !           918: 
        !           919: Sat Jul 21 13:58:16 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           920: 
        !           921:        * cccp.c (O_RDONLY): Define it if not defined.
        !           922: 
        !           923:        * c-decl.c (finish_decl): No error for nonstatic incomplete array.
        !           924: 
        !           925: Sat Jul 14 14:59:33 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           926: 
        !           927:        * gcc.c (compilers): Pass -P to cpp.
        !           928: 
        !           929:        * tm-mips.h (ASM_OUTPUT_SOURCE_LINE): Handle TARGET_GAS, TARGET_PIC.
        !           930: 
        !           931: Thu Jul 12 12:28:16 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           932: 
        !           933:        * stor-layout.c (layout_record): Handle BITFIELD_NBYTES_LIMITED.
        !           934: 
        !           935:        * stmt.c (group_case_nodes): Don't group across an overflow.
        !           936: 
        !           937:        * combine.c (subst, case LSHIFT): Use gen_lowpart_for_combine.
        !           938: 
        !           939: Wed Jul 11 15:17:32 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           940: 
        !           941:        * combine.c (subst, case LSHIFT):
        !           942:        Fix condition for (lshift ... (sign_extend ...)).
        !           943: 
        !           944: Tue Jul 10 17:02:54 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           945: 
        !           946:        * c-decl.c (pushdecl): No shadow warning if TREE_INLINE is set.
        !           947:        * integrate.c (copy_parm_decls): Set TREE_INLINE in the copies.
        !           948:        (copy_decl_tree): Likewise.
        !           949: 
        !           950:        * c-parse.y (yylex): Terminate token_buf after integer.
        !           951: 
        !           952: Mon Jul  9 16:56:55 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           953: 
        !           954:        * expr.c (expand_call): Don't check args[i].partial when bumping
        !           955:        negative args_size up to 0.
        !           956: 
        !           957:        * sparc.md (call recognizers): Don't allow address arithmetic.
        !           958: 
        !           959: Sun Jul  8 14:22:22 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           960: 
        !           961:        * c-typeck.c (build_c_cast): Reinsert missing default_conversion call.
        !           962: 
        !           963:        * gnulib.c (__bb_init_func): Ensure this defines >=1 symbol.
        !           964: 
        !           965: Fri Jul  6 12:28:44 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           966: 
        !           967:        * c-typeck.c (build_indirect_ref):
        !           968:        No error if result is incomplete array.
        !           969: 
        !           970:        * m68k.md (casesi2 recognizer): Handle new ASM_RETURN_CASE_JUMP macro.
        !           971: 
        !           972:        * expmed.c (store_bit_field, extract_bit_field): New arg TOTAL_SIZE.
        !           973:        Don't extract a bigger unit from memory than this.
        !           974:        * expr.c: Callers changed.
        !           975:        (store_field): New arg TOTAL_SIZE; callers changed.
        !           976: 
        !           977:        * xm-ns32k.h: Use built in alloca.
        !           978:        * ns32k.md (movsf): Output float constants only if GAS_SYNTAX.
        !           979:        (call, call_value): Support JSR_ALWAYS.
        !           980:        Change handling of bsr for GAS_SYNTAX.
        !           981: 
        !           982: Thu Jul  5 15:05:19 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           983: 
        !           984:        * mips.md (divdf3): Fix spacing in output.
        !           985:        (movdf): Fix bad output storing CPU regs into memory.
        !           986:        * out-mips.c (function_prologue): Bug testing fmask.
        !           987:        (function_epilogue): Bug in spacing in output.
        !           988: 
        !           989:        * c-typeck.c (build_conditional_expr): Handle ((void *) 0).
        !           990:        Allow 0 versus function pointer.
        !           991: 
        !           992: Tue Jul  3 21:43:40 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           993: 
        !           994:        * c-decl.c (finish_struct): Lay out any array typedefs now completed.
        !           995:        (layout_array_type): New function.
        !           996:        (grokdeclarator): Don't warn for incomplete array in typedef.
        !           997: 
        !           998:        * tm-*.h (ASM_OUTPUT_COMMON): Use %u, not %d.
        !           999:        (ASM_OUTPUT_LOCAL, ASM_OUTPUT_SKIP): Likewise.
        !          1000: 
        !          1001: Mon Jul  2 12:07:08 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1002: 
        !          1003:        * i386.md (tstsf): Clobber reg 0 in SImode.
        !          1004: 
        !          1005: Sun Jul  1 14:28:58 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1006: 
        !          1007:        * stddef.h: Check __SIZE_T also.
        !          1008: 
        !          1009:        * toplev.c: Include types.h first.
        !          1010: 
        !          1011:        * i386.md (trunc*2): Don't allow moving symbolic constant to memory.
        !          1012:        Use wider move only for symbolic constant.
        !          1013: 
        !          1014:        * tm-convex.h (LINK_SPEC): Posix link flags.
        !          1015:        * tm-convex.h (STARTFILE_SPEC): Posix start files.
        !          1016:        * tm-convex[12].h (CPP_SPEC): Posix defines.
        !          1017:        * tm-convex[12].h (LIB_SPEC): Posix libraries.
        !          1018:        * tm-conv[12]os7.h: New files.
        !          1019:        * config.gcc: use tm-conv*os7 if /usr/include/stdlib.h isn't there.
        !          1020: 
        !          1021:        * xm-convex.h (S_IFMT, S_IFREG): make visible if hidden for posix.
        !          1022:        * xm-convex.h (_PROTO): define to keep 8.0 includes from screwing up.
        !          1023: 
        !          1024:        * tm-convex.h (ASM_OUTPUT_{FLOAT,DOUBLE}, PRINT_OPERAND):
        !          1025:          use %e instead of %#g, which is broken or non-posix.
        !          1026: 
        !          1027:         * tm-convex.h (current_section_is_text): make extern.
        !          1028:        * out-convex.c (current_section_is_text): define here.
        !          1029:        * tm-convex.h (OVERRIDE_OPTIONS), out-convex.c (override_options):
        !          1030:          useless; remove.
        !          1031:        * tm-convex.h (CPP_PREDEFINES): remove parsec, long gone from
        !          1032:          system includes.
        !          1033: 
        !          1034: Fri Jun 29 12:42:16 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1035: 
        !          1036:        * tm-vax.h (LEGITIMATE_CONSTANT_P): Fix typo.
        !          1037: 
        !          1038:        * out-mips.c (function_arg_partial_nregs): Round size up to words.
        !          1039: 
        !          1040: Thu Jun 28 12:50:44 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1041: 
        !          1042:        * cse.c (cse_insn): Replace src only with general_operand
        !          1043:        unless moving to a register.
        !          1044: 
        !          1045:        * expr.c (expand_expr): Use assign_stack_local for constructors.
        !          1046: 
        !          1047:        * Makefile (STAGESTUFF): Change names of stamp files.
        !          1048: 
        !          1049:        * pyr.md (tstqi): Change comma to semicolon.
        !          1050: 
        !          1051:        * out-mips.c (init_cumulative_args): Fix name of debug_tree.
        !          1052: 
        !          1053:        * vax.md (movsi special case): Fix assembler syntax.
        !          1054:        * tm-vax.h (LEGITIMATE_CONSTANT_P): Add missing backslashes.
        !          1055:        * tm-ultrix.h (DOLLARS_IN_IDENTIFIERS): Define as 1.
        !          1056: 
        !          1057: Wed Jun 27 14:04:51 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1058: 
        !          1059:        * expr.c (emit_move_insn): Force constants to mem only if predicate
        !          1060:        fails.
        !          1061:        * out-vax.c (supergeneral_operand): New function.
        !          1062:        * vax.md (movsi): Use that predicate.
        !          1063: 
        !          1064:        * out-mips.c (function_prologue): Don't use sp_str in .frame.
        !          1065:        Use sw rather than sd in cases 5 and 7.
        !          1066: 
        !          1067: Tue Jun 26 14:21:36 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1068: 
        !          1069:        * rtl.h (EXTERNAL_SYMBOL_P): New macro.
        !          1070:        * varasm.c (make_decl_rtl): Set it if variable is external.
        !          1071:        * tm-vms.h (NO_EXTERNAL_INDIRECT_ADDRESS): Define this.
        !          1072:        * tm-vax.h (INDIRECTABLE_CONSTANT_ADDRESS_P): New macro.
        !          1073:        Value depends on NO_EXTERNAL_INDIRECT_ADDRESS.
        !          1074:        (INDIRECTABLE_ADDRESS_P, LEGITIMATE_CONSTANT_P): Value depends...
        !          1075:        (NONINDIRECT_ADDRESS_P): New macro.
        !          1076:        (GO_IF_NONINDEXED_ADDRESS): Use NONINDIRECT_ADDRESS_P sometimes.
        !          1077:        * vax.md (movsi special case): New pattern for loading
        !          1078:        illegitimate constants.
        !          1079:        * out-vax.c (print_operand_address): Handle reg+(reg+const).
        !          1080: 
        !          1081:        * tm-sparc.h (LINK_SPEC): Delete spurious `-'.
        !          1082:        * tm-sun386i.h (LINK_SPEC): Define it, handling -Bstatic and aliases.
        !          1083:        * tm-sun3.h (ASM_OUTPUT_FLOAT_OPERAND): Delete spurious `\n'.
        !          1084:        (ASM_OUTPUT_DOUBLE_OPERAND): Likewise.
        !          1085: 
        !          1086: Mon Jun 25 18:45:51 1990  Michael Meissner  (meissner at osf.org)
        !          1087: 
        !          1088:        * sdbout.c: If not on a COFF system, define COFF symbols by hand.
        !          1089: 
        !          1090:        * out-mips.c (legitimize_constant_expr): Delete unused function.
        !          1091:        (output_load_immediate, addr_compensate): Delete unused functions.
        !          1092:        (compare_restore): Redo code based on eliminating peepholes.
        !          1093:        (function_prologue): New function, emit correct entry sequence.
        !          1094:        (function_epilogue): New function, emit correct exit sequence.
        !          1095:        Also output .ent, .frame, .mask, .fmask, and .end, for back tracing.
        !          1096:        (mips_fix_frame_pointer): New function to eliminate frame.
        !          1097:        (function_arg_partial_nregs, function_arg, function_arg_advance):
        !          1098:        (init_cumulative_args): New funtions.
        !          1099: 
        !          1100:        * stdarg.h (va_arg): Alternate definition for mips.
        !          1101:        * va-mips.h: Total rewrite.
        !          1102:        These changes in tm-mips.h have not yet been done.
        !          1103:        * tm-mips.h (ASM_OUTPUT_DOUBLE): Put floating point out in hex.
        !          1104:        (ASM_OUTPUT_FLOAT): Put floating point out in hex.
        !          1105:        (PRINT_OPERAND): Add 'D', 'L', and 'M' codes.
        !          1106:        (STRUCTURE_SIZE_BOUNDARY): Set this to 8 for MIPS cc compatibility.
        !          1107:        (CC1_SPEC): Add -O1 which is same as -O.
        !          1108:        (CC1_SPEC): Add -O3 which is -O2 + -finline-functions.
        !          1109:        (TARGET_SWITCHES): Use hex for options.
        !          1110:        (TARGET_SWITCHES): Rename -munix to -mmips-as.
        !          1111:        (TARGET_SWITCHES): Add -mgas as oppisite of -mmips-as.
        !          1112:        (TARGET_SWITCHES): Add -mpic, -mpic-large-object (but no code yet).
        !          1113:        (TARGET_SWITCHES): Make -mdebug* comments match reality.
        !          1114:        (PROMOTE_PROTOTYPES): Define this macro.
        !          1115:        (FIXED_REGISTERS): Allow $f0, $f2, and $f14 to be allocated.
        !          1116:        (NO_LIBG): Define this macro.
        !          1117:        (TARGET_VERSION): Be more specific about which vendors MIPS system.
        !          1118:        (ASM_FILE_START): Call ASM_OUTPUT_SOURCE_FILENAME, print_options.
        !          1119:        (ASM_OUTPUT_SOURCE_FILENAME): Emit correct .file directive.
        !          1120:        (ASM_OUTPUT_SOURCE_LINE): Emit correct .loc directive.
        !          1121:        (EXTRA_SECTIONS): Add rdata_section.
        !          1122:        (SELECT_SECTION, SELECT_SECTION_MODE): Use .rdata if feasible.
        !          1123:        (SDB_DEBUGGING): Define this, but only line #'s supported now.
        !          1124:        (FRAME_POINTER_REQUIRED): Allow no frame ptr in leaf procedures.
        !          1125:        (GO_IF_LEGITIMATE_ADDRESS): Don't allow REG+70000 as address.
        !          1126:        (various): Use MIPS profiling (no _mcount).
        !          1127:        (various): Add new macros to classify registers.
        !          1128:        (NO_UNDERSCORES): Define this for G++.
        !          1129: 
        !          1130:        * mips.md (peepholes): Merge 4 peepholes, delete 24 unneeded ones. 
        !          1131:        Replaced with an anonymous pattern for a test insn.
        !          1132:        (call_value): Change to a define_insn.
        !          1133:        (movsi, movhi, movqi): Don't fall through at end, to avoid a warning.
        !          1134:        (movsf special case for immediate args): Pattern deleted.
        !          1135:        (movdf special case for immediate args): Pattern deleted.
        !          1136:        (movsf, movdf): Use new macros to distinguish fp regs.
        !          1137:        Add letter `y' to constraints.
        !          1138:        (cmpsi): Allow arith_operand for second operand.
        !          1139:        (hi and qi tests): Patterns deleted.
        !          1140:        (jump): Handle TARGET_PIC.
        !          1141:        (tablejump): Pattern moved.
        !          1142:        (conditional branches): Align the comments that are output.
        !          1143:        (call, call_value): Make predicates more specific.
        !          1144:        Don't output any comments.
        !          1145: 
        !          1146:        * out-mips.c: Include flags.h.  Include tree.h at beginning.
        !          1147:        Define numerous variables counting things used in this compilation.
        !          1148:        (my_print_rtx): Deleted.  Callers use debug_rtx.
        !          1149:        (output_load_immediate): Simply output an li instruction.
        !          1150:        (print_options): Body rewritten.  Now always defined, but body
        !          1151:        is in an #if 0.
        !          1152:        (abort_show_logged, my_print_insncode): Functions deleted.
        !          1153:        (abort_with_insn): Now use `error' to print the message.
        !          1154:        (mips_section_get): Function deleted.
        !          1155:        (override_options): Update mips_section_threshold, once and for all.
        !          1156: 
        !          1157: Mon Jun 25 16:54:13 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1158: 
        !          1159:        * integrate.c (output_inline_function): Pass dummies for new args
        !          1160:        to init_function_start.
        !          1161: 
        !          1162:        * stddef.h: Check _T_SIZE as well as _SIZE_T.
        !          1163: 
        !          1164: Sun Jun 24 17:15:34 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1165: 
        !          1166:        * stmt.c (init_function_start): New args give file/line for first note.
        !          1167:        * c-decl.c (store_parm_decls): Pass them.
        !          1168:        * final.c (final_start_function): For sdb, don't output a line number, 
        !          1169:        just set last_linenum.
        !          1170: 
        !          1171:        * tm-att386.h (ASM_OUTPUT_LOCAL): Put it in .bss section.
        !          1172: 
        !          1173: Fri Jun 22 12:40:07 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1174: 
        !          1175:        * cccp.c (handle_directive): Always ignore empty directive.
        !          1176: 
        !          1177:        * tree.h (BUILT_IN_NEXT_ARG): Define it.
        !          1178:        * c-decl.c (init_decl_processing): Declare __builtin_next_arg.
        !          1179:        * expr.h (current_function_arg_offset_rtx): Declare it.
        !          1180:        * stmt.c (assign_parms): Set that variable at end.
        !          1181:        * expr.c (expand_builtin): Implement __builtin_next_arg.
        !          1182:        * stdarg.h (va_start): Use __builtin_next_arg.
        !          1183:        * function.c (push_function_context, pop_function_context):
        !          1184:        Save and restore current_function_arg_offset_rtx.
        !          1185:        * function.h (struct function): New field for this.
        !          1186: 
        !          1187: Wed Jun 20 15:26:16 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1188: 
        !          1189:        * tm-apollo68.h (FUNCTION_ARG_PADDING): Never pad.
        !          1190:        (STACK_BOUNDARY): Make it 32.
        !          1191:        (CPP_SPEC): Add spaces.  Define _APOLLO_SOURCE if not -ansi.
        !          1192: 
        !          1193:        * expr.c (expand_call): If have STACK_BOUNDARY and push insns,
        !          1194:        compute stack_align when size is rounded, and use later
        !          1195:        to push the space for the rounding.
        !          1196: 
        !          1197: Tue Jun 19 15:41:53 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1198: 
        !          1199:        * genextract.c (gen_peephole): Use sizeof (rtx), not UNITS_PER_WORD.
        !          1200: 
        !          1201:        * reload1.c (reload_inheritance_insn): New variable.
        !          1202:        (reg_reloaded_insn): New variable.
        !          1203:        (choose_reload_regs): Update those variables.
        !          1204:        (emit_reload_insns): Use them to remove deaths from insns
        !          1205:        that used input reloads.
        !          1206:        (reload_as_needed): Clear reg_reloaded_insn when necessary.
        !          1207: 
        !          1208: Mon Jun 18 13:25:59 1990  Michael Meissner  (meissner at osf.org)
        !          1209: 
        !          1210:        * mips.md (probe): Make a single insn, just a memref.
        !          1211: 
        !          1212:        * mips.md (ashlqi3, ashlhi3, one_cmplqi2, one_cmplhi2): Deleted.
        !          1213:        (ashlsi3, ashrsi3, lshrsi3, neg*, one_cmplsi2): Simplified.
        !          1214:        Don't output comments.  Use more specific predicates.
        !          1215: 
        !          1216:        * mips.md (movsf, movdf): Use L, M codes to avoid #ifdef's.
        !          1217:        Also simplify and don't output comments.
        !          1218:        (anonymous patterns for those insns): Deleted.
        !          1219:        (loading floating constant): New patterns added.
        !          1220:        (move qi to si pattern): Deleted; ridiculous.
        !          1221:        (movdi, movsi, movhi, movqi): No need to check for moving reg to self.
        !          1222: 
        !          1223:        * mips.md (nop): Use .set noreorder to placate assembler.
        !          1224: 
        !          1225: Sun Jun 17 01:19:26 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1226: 
        !          1227:        * Makefile (stamp-*.c, stamp-*.h): Remove .c or .h from names.
        !          1228: 
        !          1229:        * tm-i860.h (GO_IF_LEGITIMATE_ADDRESS): Displacement must be multiple
        !          1230:        of the alignment of the operand.
        !          1231: 
        !          1232:        * i860.md (signed bit field recognizers): Don't shift by >31 bits.
        !          1233: 
        !          1234:        * out-i860.c (output_delayed_branch): Pass register properly to
        !          1235:        load_opcode.
        !          1236: 
        !          1237:        * sdbout.c (sdbout_symbol): Get right regno for var-length object.
        !          1238: 
        !          1239:        * c-decl.c (duplicate_decls): Types don't "match" if one is error.
        !          1240: 
        !          1241:        * cexp.y (yylex): Ignore carriage return.
        !          1242:        * cccp.c (initialize_char_syntax): Likewise.
        !          1243: 
        !          1244: Sun Jun 17 01:19:26 1990  Michael Meissner  (meissner at osf.org)
        !          1245: 
        !          1246:        * mips.md (general/fp reg move patterns): Use codes L, M, D.
        !          1247:        (movdi): Likewise.  And don't output useless comments.
        !          1248:        Use the assembler temp reg for non-offsettable address.
        !          1249:        (movsi, movhi, movqi): Output nothing for move from reg to itself.
        !          1250:        Output li to load a constant.  Use `move' instead of `add'.
        !          1251:        Don't output useless comments.
        !          1252:        (load-address pattern): Deleted; handled by addsi3 pattern.
        !          1253: 
        !          1254:        * mips.md (addsi3, mulsi3): Make both input predicates arith_operand
        !          1255:        since they are commutative.
        !          1256:        (andsi3, iorsi3, xorsi3): Likewise.
        !          1257: 
        !          1258:        * tm-mips.h (MOST_SIGNIFICANT_WORD, LEAST_SIGNIFICANT_WORD): New.
        !          1259: 
        !          1260:        * tm-mips.h (PRINT_OPERAND): New codes D, L, M.
        !          1261:        * mips.md (anddi3, iordi3, xordi3): Use earlyclobber to stop overlap.
        !          1262:        Use new print code D.
        !          1263: 
        !          1264:        * mips.md (andsi3, iorsi3, xorsi3): Make predicates more specific.
        !          1265:        (andhi3, ..., andqi3, ...): Patterns deleted.
        !          1266:        (patterns for nor): New anonymous patterns.
        !          1267:        * out-mips.c (uns_arith_operand): New function.
        !          1268: 
        !          1269:        * mips.md (trunc*, zero_extend*, extend*, fix_trunc*, float*):
        !          1270:        Use more specific predicates.
        !          1271: 
        !          1272:        * mips.md (addhi3, ..., addqi3, ...): Patterns deleted.
        !          1273:        (addsi3, subsi3, mulsi3, divsi3): Make predicates more specific.
        !          1274:        Delete useless comments from assembler code.
        !          1275:        Use more generic op codes rather than special cases such as addiu.
        !          1276:        (divmodsi4, udivmodsi4, udivsi3, modsi3, umodsi3): New patterns.
        !          1277:        (abssf2, absdf2): New patterns.
        !          1278: 
        !          1279: Sat Jun 16 22:52:44 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1280: 
        !          1281:        * c-typeck.c (process_init_constructor): Handle unions.
        !          1282:        (digest_init): Use that for union inits.
        !          1283: 
        !          1284: Wed Jun  6 19:20:20 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1285: 
        !          1286:        * loop.c (move_movables): In insn-deleting loop, check p != 0.
        !          1287: 
        !          1288: Sun Jun  3 22:44:12 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1289: 
        !          1290:        * c-decl.c (grokdeclarator): Warn about extern with initializer.
        !          1291: 
        !          1292: Sat Jun  2 14:46:18 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1293: 
        !          1294:        * c-decl.c (grokdeclarator): Handle const and volatile with parm
        !          1295:        specified as function type.
        !          1296: 
        !          1297:        * varasm.c (immed_real_const_1): Don't confuse -0.0 with 0.0.
        !          1298: 
        !          1299:        * tm-sun3.h (ASM_OUTPUT_FLOAT, ASM_OUTPUT_DOUBLE): Handle -0.0.
        !          1300:        (ASM_OUTPUT_FLOAT_OPERAND, ASM_OUTPUT_DOUBLE_OPERAND): Likewise.
        !          1301:        Note: Sun 4 (under SunOS 4) seems to work okay without this change.
        !          1302:        Perhaps printf works better in that version.
        !          1303: 
        !          1304: Fri Jun  1 13:38:41 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1305: 
        !          1306:        * expr.c (expand_call): For const function, pop stack before and aft.
        !          1307: 
        !          1308: Thu May 31 12:59:28 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1309: 
        !          1310:        * expr.c (expand_call): Don't round stack block if size negative.
        !          1311: 
        !          1312:        * fold-const.c (fold): Preserve sign on constant when other terms
        !          1313:        cancel (after call to split_tree).
        !          1314: 
        !          1315: Wed May 30 20:49:10 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1316: 
        !          1317:        * c-parse.y (primary, fndef): Use YYFAIL, since YYERROR was changed.
        !          1318: 
        !          1319:        * out-m68k.c (output_move_double): Don't test HOST_WORDS_BIG_ENDIAN
        !          1320:        since that only exists in version 2.
        !          1321:        * tm-m68k.h (PRINT_OPERAND_EXTRACT_FLOAT): New macro wasn't mentioned.
        !          1322:        Don't test HOST_WORDS_BIG_ENDIAN.
        !          1323:        (PRINT_OPERAND_PRINT_FLOAT): New macro wasn't mentioned before.
        !          1324:        (PRINT_OPERAND): Use them.
        !          1325: 
        !          1326: Tue May 29 21:35:23 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1327: 
        !          1328:        * optabs.c (expand_float): Don't use hard reg for intermediate result.
        !          1329: 
        !          1330:        * c-parse.y (yylex): Fix typo in handling of ERANGE.
        !          1331: 
        !          1332:        * sparc.md (tstdf, tstsf): Use a CLOBBER, not a USE, on f0.
        !          1333: 
        !          1334:        * sparc.md (eager branch peepholes): Fix typos.
        !          1335:        * tm-sparc.h (OUTPUT_JUMP): Define this.
        !          1336: 
        !          1337:        * print-tree.c (print_lang_identifier): New function.
        !          1338: 
        !          1339: Sat May 26 13:42:04 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1340: 
        !          1341:        * sdbout.c (sdb_begin_function_line): Now -1 if not in use.
        !          1342:        (sdbout_end_function): Set it to -1.
        !          1343: 
        !          1344: Fri May 25 00:18:29 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1345: 
        !          1346:        * print-tree.c: Total rewrite.
        !          1347: 
        !          1348: Thu May 24 21:26:08 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1349: 
        !          1350:        * cccp.c (macarg): When popping frame, free via free_ptr, not buf.
        !          1351: 
        !          1352: Tue May 22 21:41:08 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1353: 
        !          1354:        * c-decl.c (finish_decl): Discard any variable sizes in the decl.
        !          1355: 
        !          1356:        * pyr.md (mulsi3, adddi3, ...): Use symmetrical predicates in
        !          1357:        commutative patterns.
        !          1358:        (tsthi, tstqi): Set CC_NO_OVERFLOW
        !          1359:        * out-pyr.c (notice_update_cc): Don't do that here for
        !          1360:        explicit cc-setting insns.
        !          1361: 
        !          1362: Sat May 19 12:41:44 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1363: 
        !          1364:        * tm-i386gas.h (ASM_OUTPUT_ALIGN): Use log as arg to .align.
        !          1365:        (ASM_OUTPUT_ALIGN_CODE): Likewise.
        !          1366: 
        !          1367: Wed May 16 16:09:47 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1368: 
        !          1369:        * tm-pyr.h (FIXED_REGISTERS, CALL_USED_REGISTERS): 
        !          1370:        Reserve register lr15 as fixed, for test instructions.
        !          1371:        * pyr.md (tsthi, tstqi): Use cvtXw into lr15 rather than test.
        !          1372: 
        !          1373:        * expr.c (expand_expr): Make sure a volatile value is referenced
        !          1374:        even if value is ignored.
        !          1375: 
        !          1376:        * c-typeck.c (truthvalue_conversion): Result COND_EXPR gets type int.
        !          1377:        (invert_truthvalue): Simplify COND_EXPR.
        !          1378: 
        !          1379: Tue May 15 16:51:41 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1380: 
        !          1381:        * c-decl.c (complete_array_type): Compensate for wide string constants.
        !          1382: 
        !          1383: Mon May 14 15:31:07 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1384: 
        !          1385:        * c-parse.y (combine_strings): Fix errors computing wide string length.
        !          1386: 
        !          1387: Sat May 12 15:17:37 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1388: 
        !          1389:        * i386.md (trunc**): Use long move if source is constant.
        !          1390:        * out-i386.c (PRINT_REG): Handle CODE == 'k'.
        !          1391: 
        !          1392:        * ns32k.md (signed bitfield extract): Don't output assembler comment.
        !          1393: 
        !          1394: Fri May 11 14:45:06 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1395: 
        !          1396:        * tm-i860.h (ASM_OUTPUT_CASE_LABEL): Align to multiple of 4.
        !          1397: 
        !          1398: Thu May 10 23:43:31 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1399: 
        !          1400:        * out-i860.c (single_insn_src_p, strict_single_insn_src_p):
        !          1401:        Correct conditions for needing multiple instructions.
        !          1402:        (output_delayed_branch): Likewise.
        !          1403: 
        !          1404: Tue May  8 13:54:37 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1405: 
        !          1406:        * tm-ultrix.h: New file.
        !          1407: 
        !          1408: Mon May  7 18:47:47 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1409: 
        !          1410:        * i386.md (test... recognizers): Output symbolic constant first.
        !          1411: 
        !          1412: Sat May  5 12:18:05 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1413: 
        !          1414:        * rtlanal.c (dead_or_set_p): Compare register numbers, not addresses.
        !          1415: 
        !          1416: Thu May  3 16:56:43 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1417: 
        !          1418:        * expmed.c (store_bit_field): Maximum size for loading mem struct
        !          1419:        into reg comes from the mode of the value to be stored.
        !          1420:        Alignment is no restriction if it matches BIGGEST_ALIGNMENT.
        !          1421:        Always do the real work in SImode if couldn't use MEM.
        !          1422:        (extract_bit_field): Likewise.
        !          1423: 
        !          1424:        * tm-sparc.h (PRINT_OPERAND): Handle new codes I and U.
        !          1425:        * sparc.md (delay slot peepholes): Use them to handle CC_NO_OVERFLOW.
        !          1426:        (negated jump recognizer): Likewise.
        !          1427:        * sparc.md (addcc and subcc recognizers): Test for validity of
        !          1428:        ignoring overflow with ignore_overflow_conditional_p.
        !          1429:        * out-sparc.c (ignore_overflow_conditional_p): New function.
        !          1430: 
        !          1431:        * pyr.md (bitw recognizer): Set CC_NO_OVERFLOW.
        !          1432: 
        !          1433: Mon Apr 30 01:39:14 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1434: 
        !          1435:        * stor-layout.c (build_int): Make arg unsigned.
        !          1436: 
        !          1437:        * cccp.c (macarg1): `\' not special outside strings.
        !          1438: 
        !          1439:        * c-typeck.c (build_unary_op): In increment ops,
        !          1440:        typo checking for ptr to void/function.
        !          1441:        Check original type for this and for amount of increment.
        !          1442: 
        !          1443: Sat Apr 28 16:43:08 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1444: 
        !          1445:        * c-typeck.c (build_indirect_ref): Error if target is incomplete type.
        !          1446: 
        !          1447: Fri Apr 27 13:02:10 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1448: 
        !          1449:        * reload1.c (order_regs_for_reload): Count multi-word pseudos right.
        !          1450: 
        !          1451:        * flow.c (mark_set_1): Handle nested SUBREG, SIGN_EXTRACT,
        !          1452:        STRICT_LOW_PART, etc.  Also, always set subreg_p when setting
        !          1453:        a bit field, even if modes are same.
        !          1454: 
        !          1455: Thu Apr 26 17:52:17 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1456: 
        !          1457:        * cccp.c (handle_directive): Don't pass directive through if no_output.
        !          1458: 
        !          1459: Tue Apr 24 13:40:25 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1460: 
        !          1461:        * pyr.md (addsi3): Use general_operand for both inputs.
        !          1462: 
        !          1463:        * i860.md: Add missing = in some output constraints.
        !          1464: 
        !          1465: Mon Apr 23 16:37:21 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1466: 
        !          1467:        * combine.c (subst): When checking reg_last_set, verify nonzero.
        !          1468: 
        !          1469:        * ns32k.md (ashlhi3): Avoid using %1.
        !          1470: 
        !          1471: Sat Apr 21 21:05:51 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1472: 
        !          1473:        * stmt.c (assign_parms): Don't make entry_parm and stack_parm valid.
        !          1474:        Leave them explicit stack slots.
        !          1475:        (validize_mem): Copy it, don't alter it.
        !          1476: 
        !          1477: Thu Apr 19 15:23:51 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1478: 
        !          1479:        * out-sparc.c (find_addr_reg): Avoid using frame pointer. 
        !          1480: 
        !          1481: Sun Apr 15 13:42:24 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1482: 
        !          1483:        * expr.c (emit_library_call): Precompute reg and partial of all parms,
        !          1484:        to do it in proper order.
        !          1485: 
        !          1486:        * integrate.c (save_for_inline): Copy reg notes after all insns.
        !          1487: 
        !          1488:        * final.c (final_scan_insn): No block profiling before jump table.
        !          1489: 
        !          1490: Sat Apr 14 00:19:47 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1491: 
        !          1492:        * i386.md (tstdf): Clobber reg in SImode, like cmpdf.
        !          1493:        (blt, ble): New define_expands.  RTL like before except,
        !          1494:        for floats, reverse prev compare or test and do bgt/bge.
        !          1495: 
        !          1496: Thu Apr 12 21:27:18 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1497: 
        !          1498:        * expr.c (expand_call): New variable argpos counts args in the
        !          1499:        order written.  For comparison with n_named_args.
        !          1500: 
        !          1501:        * c-decl.c (duplicate_decls): Preserve DECL_INITIAL from old
        !          1502:        function def to new one.
        !          1503: 
        !          1504:        * cccp.c (macroexpand): Count Newline Space as part of whitespace
        !          1505:        sequence when stringifying.
        !          1506: 
        !          1507: Tue Apr 10 21:08:06 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1508: 
        !          1509:        * cccp.c (do_line): No error if string follows number without space.
        !          1510: 
        !          1511: Mon Apr  9 15:37:11 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1512: 
        !          1513:        * Makefile (install): Turn off x bit on headers and man page.
        !          1514: 
        !          1515:        * i860.md (cmpeqsf, etc.): Change opcode name to pfeq.ss, etc.
        !          1516: 
        !          1517:        * tm-m68k.h (PRINT_OPERAND_PRINT_FLOAT): Delete spurious backslash.
        !          1518: 
        !          1519:        * c-decl.c (store_parm_decls): Don't do storedecls in prototype case.
        !          1520:        That was discarding the enumerators already pushdecl'd.
        !          1521: 
        !          1522:        * tm-m68k.h (NOTICE_UPDATE_CC): Undo last change.
        !          1523: 
        !          1524: Sun Apr  8 19:00:09 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1525: 
        !          1526:        * out-m68k.c (output_move_double, standard_68881_constant_p):
        !          1527:        Do word-swap when cross-compiling from little-endian machine.
        !          1528: 
        !          1529: Sat Apr  7 00:45:49 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1530: 
        !          1531:        * sparc.md (addcc and subcc patterns): Set CC_NO_OVERFLOW.
        !          1532: 
        !          1533:        * out-mips.c (output_load_immediate): Fix bug for values
        !          1534:        between -2**15 and -2**16; don't use addi.
        !          1535: 
        !          1536: Thu Apr  5 14:00:41 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1537: 
        !          1538:        * stdarg.h (va_start): Round initial pointer value down
        !          1539:        to double boundary.  This is to eliminate big-endian adjustment.
        !          1540: 
        !          1541:        * c-typeck.c (build_c_cast): Reject array types for result.
        !          1542: 
        !          1543:        * fixincludes: Don't ignore errors when making dirs.
        !          1544:        But check whether dir already exists.
        !          1545: 
        !          1546: Wed Apr  4 01:59:03 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1547: 
        !          1548:        * c-decl.c (grokdeclarator): Complain if fn defn has `typedef' etc.
        !          1549: 
        !          1550: Tue Apr  3 22:09:12 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1551: 
        !          1552:        * expmed.c (store_bit_field): Don't do big-endian adjust twice.
        !          1553:        Do this by changing the mode whenever it is done.
        !          1554:        Some places must now cope with subregs.
        !          1555:        (extract_bit_field): Likewise.
        !          1556: 
        !          1557: Fri Mar 30 15:54:43 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1558: 
        !          1559:        * c-decl.c (c_build_type_variant): New function.
        !          1560:        (grokdeclarator): Call that, for ARRAY_TYPE only, in fields and vars.
        !          1561:        * c-decl.c, c-typeck.c: All calls to build_type_variant use that now.
        !          1562: 
        !          1563: Wed May  2 16:34:25 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1564: 
        !          1565:        * tm-sun3.h (CC1_SPEC): Ignore -target.
        !          1566:        (WORD_SWITCH_TAKES_ARG): Define it.
        !          1567:        * tm-sparc.h (CC1_SPEC): Ignore -target and -dalign.
        !          1568:        (WORD_SWITCH_TAKES_ARG): Define it.
        !          1569: 
        !          1570: Thu Mar 29 15:34:53 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1571: 
        !          1572:        * final.c (end_final): For basic block profiling, don't output
        !          1573:        source file name.  Instead, append ".d", and remove ".c".
        !          1574:        * gnulib.c (__bb_init_func): New name for __bb_init_function.
        !          1575:        Conditionalize on mc68000, not m68k.
        !          1576:        Fix other typos.
        !          1577:        * Makefile (LIBFUNCS): Add _bb_init_func.
        !          1578: 
        !          1579:        * xm-sun386i.h (LINK_SPEC): Handle -static.
        !          1580: 
        !          1581: Wed Mar 28 16:21:53 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1582: 
        !          1583:        * c-decl.c (duplicate_decls): Preserve DECL_FRAME_SIZE from definition
        !          1584:        past subsequent declarations.
        !          1585: 
        !          1586:        * c-decl.c (xref_tag): If global_binding_level, make nodes permanent.
        !          1587: 
        !          1588:        * expr.c (expand_call): Handle STACK_BOUNDARY when using push insns.
        !          1589: 
        !          1590:        * stmt.c (assign_parms): Note how PUSH_ROUNDING affects stack
        !          1591:        parm size.
        !          1592: 
        !          1593:        * tm-mips.h (STRUCTURE_SIZE_BOUNDARY): Changed from 16 to 8.
        !          1594: 
        !          1595: Tue Mar 27 14:24:00 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1596: 
        !          1597:        * m68k.md (movsi, movhi, movstricthi, movqi, movstrictqi):
        !          1598:        Avoid both clr and st on volatile mem, but only on 68000.
        !          1599:        (SImode store 0 recognizer): Likewise.
        !          1600: 
        !          1601: Mon Mar 26 15:01:02 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1602: 
        !          1603:        * m68k.md (movqi): Don't use `st' insn on volatile memory.
        !          1604: 
        !          1605:        * tm-m68k.h (NOTICE_UPDATE_CC): addq and subq do update cc's
        !          1606:        even if destination is an address register.
        !          1607: 
        !          1608:        * cccp.c (discard_comments): Handle backslash-newline.
        !          1609: 
        !          1610: Sun Mar 25 20:21:58 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1611: 
        !          1612:        * cccp.c (handle_directive): Discard backslash-newline within <...>.
        !          1613: 
        !          1614: Fri Mar 23 00:52:34 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1615: 
        !          1616:        * c-decl.c (grokdeclarator): Warn if array element is incomplete.
        !          1617: 
        !          1618:        * xm-hp9k320.h (USE_C_ALLOCA): Define if not compiling with GCC.
        !          1619: 
        !          1620:        * expr.c (emit_call_1): Pass FUNTYPE directly to RETURN_POPS_ARGS.
        !          1621: 
        !          1622: Thu Mar 22 22:33:36 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1623: 
        !          1624:        * c-decl.c (get_parm_info): Void parm is special only if no name.
        !          1625: 
        !          1626:        * loop.c (may_not_optimize): Static var replaces local `may_not_move'.
        !          1627:        (strength_reduce): Don't accept those regs as givs.
        !          1628: 
        !          1629: Wed Mar 21 17:14:00 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1630: 
        !          1631:        * ns32k.md (stack adjust insn): Don't use cmpd or cmpqd on Sequent.
        !          1632:        * tm-sequent.h (SEQUENT_ADJUST_STACK): Define this.
        !          1633: 
        !          1634:        * Makefile (gnulib): Use OLDAR, not AR.
        !          1635:        (OLDAR): New variable.
        !          1636: 
        !          1637:        * expr.c (expand_call): Don't reuse pending_stack_adjust for argblock
        !          1638:        if inhibit_defer_pop.
        !          1639: 
        !          1640: Tue Mar 20 02:41:15 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1641: 
        !          1642:        * va-sparc.h: New file, handles changed calling convention.
        !          1643: 
        !          1644:        * expr.c (push_block): New argument EXTRA.  All callers changed.
        !          1645:        (emit_push_insn): Use that for the padding when using push_block.
        !          1646: 
        !          1647:        * ns32k.md (ashlsi3): `return' was missing.
        !          1648: 
        !          1649:        * tm-sparc.h (FUNCTION_ARG, FUNCTION_INCOMING_ARG):
        !          1650:        Only word-aligned BLKmodes can go in registers.
        !          1651:        (FUNCTION_ARG_PARTIAL_NREGS): Likewise.
        !          1652:        * tm-spur.h (FUNCTION_ARG, FUNCTION_INCOMING_ARG): Likewise.
        !          1653:        * expr.c (expand_call): If encounter a stack parm before offset
        !          1654:        gets up to zero, make it zero.
        !          1655:        * stmt.c (assign_parms): Likewise.
        !          1656: 
        !          1657: Mon Mar 19 00:06:35 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1658: 
        !          1659:        * assert.h (__assert) [not __GNUC__]: Rename arg to avoid stringify.
        !          1660: 
        !          1661:        * gcc.c (main): Handle SIGPIPE.
        !          1662: 
        !          1663: Sat Mar 17 14:13:43 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1664: 
        !          1665:        * loop.c (general_induction_var): When adding sub-giv to ARG,
        !          1666:        don't produce an add_val that can't be the source of an add insn.
        !          1667: 
        !          1668: Fri Mar 16 15:26:41 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1669: 
        !          1670:        * tm-vms.h (NO_DOLLAR_IN_LABEL): Define this.
        !          1671: 
        !          1672:        * sparc.md (andncc, orncc, xorncc patterns): Delete `%' in constraint.
        !          1673: 
        !          1674: Thu Mar 15 22:02:02 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1675: 
        !          1676:        * expmed.c (extract_bit_field, store_bit_field):
        !          1677:        When changing mode of a reg to SImode, also do big-endian correction.
        !          1678:        Consistently use BYTES_BIG_ENDIAN to decide how bits are numbered.
        !          1679:        Fix stray ref to CODE_FOR_extzv in case for extv.
        !          1680: 
        !          1681:        * c-typeck.c (build_unary_op): Allow function type args to `!',
        !          1682:        since they convert to pointers.
        !          1683: 
        !          1684:        * stmt.c (init_function_start): Set max_structure_value_size to -1.
        !          1685: 
        !          1686: Sun Mar 11 18:39:40 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1687: 
        !          1688:        * reload1.c (spill_hard_reg):
        !          1689:        Typo: index regs_explicitly_used with regno.
        !          1690: 
        !          1691:        * cse.c (cse_insn): When replacing constant with reg+const,
        !          1692:        don't make a REG_EQUIV note unless there already is one.
        !          1693: 
        !          1694:        * gcc.c (fatal): Flush spurious arg to delete_temp_files.
        !          1695: 
        !          1696:        * Makefile (gnulib, stamp-gnulib2): Ignore error in ranlib.
        !          1697: 
        !          1698: Sat Mar 10 16:07:27 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1699: 
        !          1700:        * loop.c (other_reg_use_p): New name for only_reg_use_p.
        !          1701:        Return 0 if IN == EXPR.
        !          1702:        (check_eliminate_biv, strength_reduce): Re-invert the test
        !          1703:        using other_reg_use_p.
        !          1704: 
        !          1705: Thu Mar  8 02:17:50 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1706: 
        !          1707:        * ns32k.md (movsi, movdi): Handle floating point registers.
        !          1708: 
        !          1709:        * reload.c (find_reloads_toplev): Do BYTES_BIG_ENDIAN offset
        !          1710:        only within a word.
        !          1711: 
        !          1712:        * stdarg.h: Use _VA_LIST_ as macro to indicate already loaded.
        !          1713: 
        !          1714:        * tm-alliant.h (FUNCTION_PROLOGUE): Use `linkl' on 68020.
        !          1715: 
        !          1716: Tue Mar  6 23:44:15 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1717: 
        !          1718:        * cccp.c (macroexpand): Fix bug in scanning strings for stringify.
        !          1719: 
        !          1720: Fri Mar  2 00:27:14 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1721: 
        !          1722:        * out-mips.c (tree_code_name): Declaration deleted.
        !          1723: 
        !          1724: Thu Mar  1 22:59:18 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1725: 
        !          1726:        * assert.h (__assert): Don't call abort; use 0 as value.
        !          1727:        * gnulib.c (__eprintf): Call abort here.
        !          1728: 
        !          1729: Wed Feb 28 13:11:24 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1730: 
        !          1731:        * Makefile (install): When installing $${eachfile}, use basename.
        !          1732: 
        !          1733: Fri Feb 23 13:21:27 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1734: 
        !          1735:        * c-parse.y (readescape): For x, avoid overflow when shifting in if.
        !          1736: 
        !          1737: Thu Feb 22 19:09:48 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !          1738: 
        !          1739:        * fixincludes: Delete directories before creating them.
        !          1740:        When making internal symbolic directory links, chase
        !          1741:        chain of existing links to the end.
        !          1742: 
        !          1743:        * dbxout.c (dbxout_type): Always use main variant.
        !          1744: 
1.1.1.17  root     1745: Wed Feb 21 00:25:39 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1746: 
                   1747:        * Version 1.37.1 released.
                   1748: 
                   1749:        * tm-mips.h (ASM_OUTPUT_ADDR_VEC_ELT and ASM_OUTPUT_ADDR_DIFF_ELT):
                   1750:        Start label names with $.
                   1751: 
                   1752: Sun Feb 18 13:58:04 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1753: 
                   1754:        * tm-mips.h (ASM_GENERATE_INTERNAL_LABEL, ASM_OUTPUT_INTERNAL_LABEL):
                   1755:        Start name with $.
                   1756: 
                   1757:        * integrate.c (expand_inline_function): Round up size of parm_map.
                   1758: 
                   1759: Sat Feb 17 20:56:05 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1760: 
                   1761:        * tm-hp9k320.h (CPP_SPEC): Remove _INCLUDE__STDC__.
                   1762: 
                   1763: Sun Feb 11 20:11:25 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1764: 
                   1765:        * Version 1.37 released.
                   1766: 
                   1767:        * c-decl.c (complete_array_type): In permanent type, add perm nodes.
                   1768: 
                   1769:        * out-i386.c (print_operand_address): Handle a MULT by itself.
                   1770: 
                   1771: Sat Feb 10 14:35:03 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1772: 
                   1773:        * ns32k.md (movsf): Convert double constant to float.
                   1774: 
                   1775: Fri Feb  9 00:02:43 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1776: 
                   1777:        * c-decl.c (duplicate_decls): Don't lose alignment of OLDDECL.
                   1778: 
                   1779:        * cccp.c (handle_directive): Keep comments by copying them explicitly.
                   1780: 
                   1781:        * cccp.c (rescan): When scanning for open-paren after macro name,
                   1782:        discard comments if appropriate.
                   1783: 
                   1784: Thu Feb  8 14:19:41 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1785: 
                   1786:        * c-decl.c (build_enumerator): Error if value outside range of int.
                   1787: 
                   1788:        * tm-hp9k320.h (CPP_SPEC): Define _INCLUDE__STDC__ if not traditional.
                   1789:        * tm-hp9k310.h: Missing file brought back.
                   1790: 
                   1791: Mon Feb  5 12:49:36 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1792: 
                   1793:        * reload1.c (spill_hard_reg): Return 1 if reg is explicitly used.
                   1794:        (reload): Cancel dummy reloads using regs subject to spill.
                   1795: 
                   1796: Sun Feb  4 12:37:00 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1797: 
                   1798:        * tm-3b1g.h: New file.
                   1799:        * config.gcc (3b1g, 3b1-gas): New alternative.
                   1800: 
                   1801:        * tm-att386.h (ASM_OUTPUT_COMMON): Don't use rounded size.
                   1802: 
                   1803: Fri Feb  2 17:04:37 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1804: 
                   1805:        * integrate.c (copy_for_inline): Use real width of rtunion in bcopy.
                   1806:        * emit-rtl.c (copy_rtx_if_shared): Likewise.
                   1807: 
                   1808:        * assert.h (assert) [__STDC__]: Use comma operator to avoid warning.
                   1809: 
                   1810:        * c-decl.c (grokdeclarator): Traditionally change return type float
                   1811:        to double.
                   1812: 
                   1813:        * cse.c (predecide_loop_entry): Give up unless simple jump enters loop.
                   1814: 
                   1815: Thu Feb  1 02:02:21 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1816: 
                   1817:        * tm-convex.h (FASCIST_ASSEMBLER, VTABLE_USES_MASK, VINDEX_MAX):
                   1818:        New definitions to control c++ files.
                   1819: 
                   1820:        * reload1.c (inc_for_reload): Forget reg_last_reload_reg
                   1821:        for the reg being inc'd.
                   1822: 
                   1823:        * limits.h (INT_MIN): Define so it has type `int', not unsigned.
                   1824:        (CHAR_MIN, SCHAR_MIN, SHRT_MIN): Put arens around value.
                   1825: 
                   1826: Wed Jan 31 12:54:07 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1827: 
                   1828:        * tm-mips.h (FUNCTION_PROLOGUE): Use CONST_OK_FOR_LETTER_P to see
                   1829:        if can update fp in one addiu insn.
                   1830: 
                   1831:        * reload1.c (reload): Reject fixed regs when finding groups to spill.
                   1832: 
                   1833:        * assert.h (assert) [NDEBUG]: Make value nonempty.
                   1834:        (assert) [no NDEBUG]: Split into a version for __STDC__ and one not.
                   1835:        (_assert) [__STDC__]: Pass expression and file separately to _eprintf.
                   1836:        (_assert) [not __STDC__]: Likewise, but implemented differently.
                   1837:        * gnulib.c (__eprintf): Handle 3 args plus format string.
                   1838: 
                   1839:        * tm-i386.h (STACK_BOUNDARY): Define it.
                   1840: 
                   1841: Sat Jan 27 17:58:30 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1842: 
                   1843:        * hard-params.c: Use explicit file name to include self.
                   1844: 
                   1845: Fri Jan 26 01:38:29 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1846: 
                   1847:        * cccp.c (rescan): Set beg_of_line when string ends at newline.
                   1848:        (skip_quoted_string): Don't swallow newline that ends a string.
                   1849:        (handle_directive): No need to back up here.
                   1850:        Pass LIMIT as second arg to skip_quoted_string.
                   1851: 
                   1852:        * cccp.c (rescan): If traditional, end preproc number after expt sign.
                   1853: 
                   1854: Thu Jan 25 01:57:34 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1855: 
                   1856:        * loop.c (general_induction_var): Reject widening multiply.
                   1857: 
                   1858:        * i860.md (andsi3): Truncate xop2 constant to 16 bits.
                   1859: 
                   1860: Wed Jan 17 12:33:52 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1861: 
                   1862:        * tm-mips.h (CC1_SPEC): Don't complain about -g.
                   1863: 
                   1864:        * c-typeck.c (build_compound_expr): Delete special case
                   1865:        that ignores expressions without side effects.
                   1866: 
                   1867:        * stor-layout.c (layout_type): Struct requires BLKmode if any field
                   1868:        crosses a word boundary.
                   1869: 
                   1870:        * reload1.c (choose_reload_regs): Refix Sequent problem correctly.
                   1871: 
                   1872: Tue Jan 16 12:03:42 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1873: 
                   1874:        * c-parse.y (unary_expr): If sizeof or alignof gets a comma expr
                   1875:        which has array or function type, coerce it to pointer.
                   1876: 
                   1877:        * fold-const.c (combine): Propagate carry when subtracting from 0.
                   1878: 
                   1879:        * fold-const.c (fold): For x++==const, do arith in type of const.
                   1880: 
                   1881: Mon Jan 15 19:24:04 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1882: 
                   1883:        * cexp.y (exp): Accept unary +.
                   1884: 
                   1885: Sun Jan 14 12:18:49 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1886: 
                   1887:        * fold-const.c (lshift_double, rshift_double, lrotate_double):
                   1888:        (rrotate_double): Don't shift more than width of operand.
                   1889: 
                   1890: Fri Jan 12 18:50:43 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1891: 
                   1892:        * recog.c (next_insns_test_no_inequality): Return 1 at end of rtl.
                   1893: 
                   1894: Thu Jan 11 14:09:47 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1895: 
                   1896:        * cccp.c (skip_if_group): Skip strings even if -traditional.
                   1897:        (handle_directive): Likewise, when handling copy_command.
                   1898: 
                   1899:        * i860.md (movsf): Ensure F to f is reloaded via r.
                   1900: 
                   1901: Wed Jan 10 15:03:08 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1902: 
                   1903:        * Makefile [3b1]: Propose redefinition of CCLIBFLAGS.
                   1904: 
                   1905:        * reload1.c (choose_reload_regs): Break down hairy if expression.
                   1906: 
                   1907:        * loop.c (loop_skip_over): Do nothing if don't find expected compare.
                   1908: 
                   1909: Sun Jan  7 00:58:06 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1910: 
                   1911:        * config.gcc: Add i386-mach.
                   1912:        * xm-i386.h: Use built-in alloca if compiling with GCC.
                   1913: 
                   1914:        * optabs.c (emit_cmp_insn): Set CLASS after MODE.
                   1915: 
                   1916: Sat Jan  6 15:33:32 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1917: 
                   1918:        * out-mips.c (function_arg, function_arg_advance):
                   1919:        Define typedef for CUMULATIVE_ARGS, and use it here.
                   1920: 
                   1921:        * cccp.c (main): Recognize `.C' for -M.
                   1922: 
                   1923:        * c-parse.y (yylex): Put 0 at end of wide string.
                   1924: 
                   1925:        * tm-mips.h (CC1_SPEC): Don't distort meaning of -O.
                   1926: 
                   1927: Fri Jan  5 12:12:31 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1928: 
                   1929:        * gcc.c (link_command_spec): If LIBS_COMPILED_WITH_GCC, gnulib is last.
                   1930: 
                   1931: Thu Jan  4 23:58:59 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1932: 
                   1933:        * Makefile (c-parse.tab.o): Add explicit compilation cmd.
                   1934: 
                   1935: Wed Jan  3 00:27:53 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1936: 
                   1937:        * Makefile (install): Use nested foreach-loop to expand va*.h.
                   1938: 
                   1939: Mon Jan  1 19:36:49 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1940: 
                   1941:        * expr.c (store_one_arg): Round size up for move_block_to_reg.
                   1942:        (expand_call): Round up when emitting USE insns.
                   1943:        * stmt.c (assign_parms): Round size up for move_block_from_reg.
                   1944: 
                   1945:        * reload1.c (alter_reg): Undo big-endian conversion from
                   1946:        assign_stack_local.
                   1947: 
                   1948: Sun Dec 31 20:10:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1949: 
                   1950:        * tree.h (struct tree_common): Declare `code' as char, not int.
                   1951: 
                   1952: Thu Dec 28 13:49:43 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1953: 
                   1954:        * gnulib.c (__fixunsdfsi): Turn large numbers to small for conversion.
                   1955: 
                   1956:        * Makefile (includes): Set variable LIB.  Run from `./'.
                   1957: 
                   1958: Wed Dec 27 18:54:25 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1959: 
                   1960:        * Makefile (CCLIBFLAGS): Add -O.
                   1961:        (gnulib): Remove -O here.
                   1962:        (HARD_PARAMS_FLAGS): Like CCLIBFLAGS but no -O.
                   1963:        (hard-params, hard-params.o): Use that.
                   1964: 
                   1965:        * loop.c (can_eliminate_biv_p, eliminate_biv): If add_val non zero,
                   1966:        it must be a constant or register.
                   1967: 
                   1968: Mon Dec 25 00:02:31 1989  Torbj|rn Granlund  (tege at zevs.sics.se)
                   1969: 
                   1970:        * tm-pyr.h (FIXUNS_TRUNC_LIKE_FIX_TRUNC): Should not be defined.
                   1971:          The cvtdw instruction causes a trap for floating point values
                   1972:          that are out-of-range for a signed int.
                   1973: 
                   1974:        * out-pyr.c (has_direct_base): Don't accept 0 as a base, if there
                   1975:          is a register displacement.  This is a workaround of a bug in
                   1976:          /bin/as.  (/bin/as changes things like "cmpw 8(reg),0(reg)" into
                   1977:          "cmpw 8(reg),(reg)", which is invalid assembler.)
                   1978: 
                   1979: Sun Dec 24 11:51:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1980: 
                   1981:        * expr.c (emit_move_insn): Lossage validating mem addr of constant.
                   1982: 
                   1983:        * varasm.c (record_constant_1): Missing `return' in ADDR_EXPR case.
                   1984: 
                   1985: Sat Dec 23 10:54:22 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1986: 
                   1987:        * ns32k.md (extract byte from register): Delete #if conditionals.
                   1988:        Assume 32532 always.
                   1989:        (adjust stack): Likewise.
                   1990: 
                   1991: Thu Dec 21 10:24:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1992: 
                   1993:        * i860.md (load DF constant to reg): Typo: extra percent sign.
                   1994:        (floatsidf2): Two words of a double were backwards.
                   1995: 
                   1996:        * reload1.c (alter_reg):
                   1997:        Always do big-endian correction on slot address.
                   1998: 
                   1999:        * gnulib.c (__fixunsdfsi): Don't rely on host compiler for unsigned.
                   2000: 
                   2001:        * i386.md (float push recognizers): Don't pop fpreg if not dead.
                   2002: 
                   2003: Sun Dec 17 12:13:37 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2004: 
                   2005:        * tm-hp9k320.h (CPP_PREDEFINES): Add __hp9000s300, _HPUX_SOURCE.
                   2006: 
                   2007: Sat Dec 16 17:49:30 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2008: 
                   2009:        * loop.c (strength_reduce): When writing insn to init a biv, 
                   2010:        update life range of reg used to init it.
                   2011: 
                   2012:        * combine.c (try_combine): Do combine (y = x, x = y).
                   2013: 
                   2014:        * loop.c (strength_reduce): When finding initial value of a biv,
                   2015:        notice assignments to subregs of it, etc.
                   2016: 
                   2017: Fri Dec 15 00:42:31 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2018: 
                   2019:        * m68k.md (fpa float and float-trunc): Accept general_operand.
                   2020: 
                   2021:        * integrate.c (expand_inline_function):
                   2022:        Put caller's line number after inline stuff.
                   2023:        Put callee's line number before parm manipulation.
                   2024: 
                   2025:        * If local-alloc assumes a reg does not conflict,
                   2026:        don't use it as dummy reload.
                   2027:        * local-alloc.c (wipe_dead_reg): Add REG_UNSET note.
                   2028:        * reload.c (find_dummy_reload): Check for that note.
                   2029: 
                   2030:        * vax.md (casesi): New pattern for super-trivial cse case.
                   2031: 
                   2032:        * jump.c (jump_optimize): Realize that more things can follow
                   2033:        the NOTE_INSN_FUNCTION_END note.  Change in two places,
                   2034:        for optimized and one for unoptimized.
                   2035: 
                   2036: Sat Dec  9 15:21:07 1989  Richard M. Stallman  (rms at ccvi)
                   2037: 
                   2038:        * expr.c (expand_expr): For conversion ops, copy CONST_INT to reg
                   2039:        to avoid lossage on VOIDmode in convert_move or expand_float.
                   2040:        * optabs.c (expand_float): Abort if FROM has VOIDmode.
                   2041: 
                   2042:        * final.c (final_scan_insn): Delete unused label.
                   2043: 
                   2044: Thu Dec  7 01:42:30 1989  Richard M. Stallman  (rms at ccvi)
                   2045: 
                   2046:        * sdbout.c (MAKE_LINE_SAFE): Ensure arg is > sdb_begin_function_line.
                   2047:        (sdbout_begin_block, sdbout_end_block, sdbout_end_function): Use it.
                   2048: 
                   2049:        * jump.c (jump_optimize): Leave block-beg, block-end notes
                   2050:        in old context when swapping two ranges of insns.
                   2051:        (squeeze_block_notes): New function.
                   2052: 
                   2053:        * expr.c (expand_call): For pcc struct, return reg mode is Pmode.
                   2054: 
                   2055:        * c-typeck.c (build_conditional_expr):
                   2056:        Only explicit ints allow predetermined choice.
                   2057: 
                   2058: Wed Dec  6 19:02:07 1989  Richard M. Stallman  (rms at ccvi)
                   2059: 
                   2060:        * toplev.c: Undef FFS after including param.h.
                   2061: 
                   2062: Tue Dec  5 16:01:18 1989  Richard M. Stallman  (rms at ccvi)
                   2063: 
                   2064:        * mips.md (movsf): Use mtc1 where needed.
                   2065: 
                   2066:        * reload1.c (choose_reload_regs): If run out of spill regs,
                   2067:        set must_reuse and try again.
                   2068: 
                   2069: Mon Dec  4 00:18:24 1989  Richard M. Stallman  (rms at ambroise)
                   2070: 
                   2071:        * reload1.c (alter_reg):
                   2072:        Don't set spill_stack_slot_width if from_reg is -1.
                   2073: 
                   2074:        * cse.c (cse_end_of_basic_block): Typos checking NOTE insns.
                   2075: 
                   2076:        * math-68881.h (pow): Add parens around `&'.
                   2077: 
                   2078:        * loop.c (can_eliminate_biv_p, eliminate_biv):
                   2079:        In COMPARE, verify the biv is one of the arguments.
                   2080:        (strength_reduce): When eliminating biv, check for use
                   2081:        in a giv in an address, just as in check_eliminate_biv.
                   2082: 
                   2083:        * stupid.c (reg_order): Make it int, in case reg # is large.
                   2084:        (stupid_reg_compare, stupid_life_analysis): Implement this.
                   2085: 
                   2086: Sun Dec  3 14:17:36 1989  Richard M. Stallman  (rms at ambroise)
                   2087: 
                   2088:        * tm-att386.h (ASM_OUTPUT_LOCAL): Don't generate .lcomm.
                   2089:        Go back to putting the variable in the data section.
                   2090: 
                   2091:        * expr.c (do_jump): Cast XVECLEN to int for subtracting 1.
                   2092: 
                   2093:        * reload.c (decompose): Handle SUBREGs.
                   2094: 
                   2095:        * c-typeck.c (build_modify_expr): Prevent -Wall warning
                   2096:        when we generate a COMPOUND_EXPR for (?:)=.
                   2097: 
                   2098: Mon Nov 27 15:39:40 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2099: 
                   2100:        * Makefile [pyramid]: Use CLIB, not ALLOCA, to access libPW.a.
                   2101:        Use -lc explicitly first.
                   2102: 
                   2103:        * pyr.md (SI test recognizer): Fix syntax error,
                   2104: 
                   2105:        * c-decl.c (grokdeclarator): Don't test size of error_mark_node
                   2106:        as type of a field.
                   2107: 
                   2108: Sun Nov 26 12:36:01 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   2109: 
                   2110:        * tm-mips.h (CONST_OK_FOR_LETTER_P): Delete extra paren.
                   2111: 
                   2112: Wed Nov 22 12:56:41 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2113: 
                   2114:        * pyr.md (mode conversion peepholes): Set CC_NO_OVERFLOW.
                   2115:        * out-pyr.c (consecutive_operands): Don't expect wrap from reg15 to 16.
                   2116: 
                   2117:        * Makefile: Fix directions for pyramid.
                   2118: 
                   2119:        * tm-mips.h (CONST_OK_FOR_LETTER_P): Define `K'.
                   2120:        (SMALL_INT): Range is 16 bits, not 17.
                   2121:        (SMALL_INT_UNSIGNED): New macro.
                   2122:        * mips.md (andsi3, iorsi3, xorsi3): Use `K', not `I'.
                   2123: 
                   2124:        * mips.md (negsi2): Accept general_operand as input.
                   2125: 
                   2126: Tue Nov 21 10:57:45 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2127: 
                   2128:        * mips.md (one_cmpl*): Accept general_operand as input.
                   2129: 
                   2130: Mon Nov 20 11:18:58 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2131: 
                   2132:        * expr.c (expand_expr): For MINUS_EXPR, don't explicitly negate int
                   2133:        constant if it is in a mode too wide for host machine int.
                   2134: 
                   2135:        * cse.c (fold_rtx): Simulate negative shift counts.
                   2136: 
                   2137: Sun Nov 19 14:36:18 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2138: 
                   2139:        * out-pyr.c (notice_update_cc): Set CC_NO_OVERFLOW in many cases.
                   2140: 
                   2141:        * cse.c (fold_rtx, fold_cc0): Handle float trap. 
                   2142: 
                   2143: Sat Nov 18 00:17:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2144: 
                   2145:        * varasm.c (output_constant): Handle float trap in fprintf.
                   2146:        * toplev.c (float_signal): Don't print message.
                   2147:        * fold-const.c (combine): Print it here.
                   2148: 
                   2149:        * sparc.md (extend patterns): Handle CONST_INT as operand.
                   2150: 
                   2151:        * out-i386.c (singlemove_string): Fix paren error.
                   2152: 
                   2153: Fri Nov 17 12:19:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2154: 
                   2155:        * expr.c (expand_increment): For pre-increment, copy the rtx to return.
                   2156: 
                   2157:        * c-parse.y (compstmt): There may be implicit decls, so check
                   2158:        and maybe keep the level.
                   2159: 
                   2160:        * tm-mips.h (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE):
                   2161:        Use call_used_regs, not a private copy.
                   2162: 
                   2163: Thu Nov 16 00:28:29 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2164: 
                   2165:        * reload1.c: Keep track of paradoxical subregs of each pseudo,
                   2166:        and make extra stack space for their sake.
                   2167:        (reload): Record max size paradoxical subreg for each pseudo.
                   2168:        (scan_paradoxical_subreg): New subroutine for that.
                   2169:        (reload): Make stack slots big enough for that size.
                   2170: 
                   2171:        * tm-i860.h (ASM_DECLARE_FUNCTION_NAME): Define it,
                   2172:        so we can output a no-op before each function.
                   2173: 
                   2174:        * tm-pyr.h (INIT_CUMULATIVE_ARGS): Simplify.
                   2175:        Pass function type to aggregate_value_p.
                   2176: 
                   2177:        * fold-const.c (fold):
                   2178:        For foo++ > const, don't change if foo++ could overflow.
                   2179: 
                   2180:        * loop.c (eliminate_biv):
                   2181:        Fix typo; check both coeffs when comparing givs.
                   2182: 
                   2183: Wed Nov 15 00:12:59 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2184: 
                   2185:        * integrate.c (copy_for_inline): Correctly handle RTL type "u".
                   2186: 
                   2187:        * jump.c (delete_insn): Extra test for PREV != 0.
                   2188: 
                   2189: Tue Nov 14 17:31:08 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2190: 
                   2191:        * tm-sun3.h (LINK_SPEC): Specify -L to control choice of -lm.
                   2192: 
                   2193:        * tm-pyr.h (INIT_CUMULATIVE_ARGS):
                   2194:        If -fpcc-struct-return, always do the scalar thing.
                   2195: 
                   2196:        * function.c (expand_function_end): Use FUNCTION_OUTGOING_VALUE.
                   2197: 
                   2198: Sat Nov 11 00:18:54 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2199: 
                   2200:        * tm-sun386.h (ASM_OUTPUT_COMMON): Use ROUNDED, not SIZE.
                   2201:        (ASM_OUTPUT_LOCAL): Likewise.  Also, generate .lcomm
                   2202:        rather than a .data area symbol.
                   2203:        * tm-att386.h: Likewise.
                   2204: 
                   2205: Fri Nov 10 15:04:15 1989  Richard Stallman  (rms at rice-chex)
                   2206: 
                   2207:        * caller-save.c (emit_mult_restore, emit_mult_save):
                   2208:        Improve arithmetic for address to save at.
                   2209: 
                   2210: Thu Nov  9 00:14:19 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2211: 
                   2212:        * tm-pyr.h (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP):
                   2213:        Don't use obsolete pushw and popw insns.
                   2214:        (ASM_OUTPUT_ALIGN): Ensure arg in range 2 to 5.
                   2215:        * pyr.md (tstdi): Pattern deleted.
                   2216:        (SImode test recognizer): Output ucmpw if jump is unsigned.
                   2217: 
                   2218:        * out-sparc.c (operands_satisfy_eager_branch_peephole): 
                   2219:        Check for moves between FP and non-FP regs; they take two insns.
                   2220:        * sparc.md (eager branch peepholes): Likewise.
                   2221:        (Ordinary delayed branch peepholes): Similar check.
                   2222:        * out-sparc.c (single_insn_extra_test): New subroutine.
                   2223: 
                   2224: Wed Nov  8 18:19:51 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2225: 
                   2226:        * combine.c (subst): In (sign_extend:M (subreg:N (and:M .. <const>) 0))
                   2227:        insist that constant be positive in mode N.
                   2228: 
                   2229: Tue Nov  7 23:25:20 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2230: 
                   2231:        * rtl.h: Undefine FFS in case it was defined by the system.
                   2232: 
                   2233: Mon Nov  6 14:43:55 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2234: 
                   2235:        * tm-i860.h, tm-m88k.h, tm-pyr.h, tm-spur.h (INIT_CUMULATIVE_ARGS):
                   2236:        Test aggregate_value_p, not just BLKmode.
                   2237: 
                   2238:        * gnulib2.c (__builtin_saveregs): Moved from gnulib.c.
                   2239:        Code added for mips.
                   2240: 
                   2241:        * pyr.md (conditional branch recognizers): Don't simplify if not -O.
                   2242: 
                   2243:        * out-pyr.c (extend_and_branch): Handle two constant operands.
                   2244: 
                   2245:        * integrate.c (function_cannot_inline_p): Don't inline if alloca used.
                   2246: 
                   2247: Sun Nov  5 02:59:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2248: 
                   2249:        * Always make a LET_STMT and notes for the top level of a function
                   2250:        if it has any subblocks.
                   2251:        * c-decl.c (struct binding_level): New field keep_if_subblocks.
                   2252:        (poplevel): Obey the new field.
                   2253:        (keep_next_if_subblocks): New variable.
                   2254:        (pushlevel): Use that variable.
                   2255:        (store_parm_decls): Set that variable.
                   2256:        (compstmt): Pass nonzero to expand_end_bindings
                   2257:        for the new kept binding levels.
                   2258:        (kept_level_p): New function.
                   2259: 
                   2260:        * xm-mips.h: Define USE_C_ALLOCA if compiling with CC.
                   2261: 
                   2262:        * tm-alliant.h (CHECK_FLOAT_VALUE): Define this.
                   2263: 
                   2264:        * expr.c (expand_call): Make valreg 0 if passing structure address.
                   2265: 
                   2266: Sat Nov  4 23:27:02 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2267: 
                   2268:        * caller-save.c (emit_mult_save, emit_mult_restore):
                   2269:        Test regs for suitability as address before using as temps.
                   2270: 
                   2271:        * cccp.c (make_definition, do_define): Better error checks for name.
                   2272: 
                   2273: Fri Nov  3 01:05:04 1989  Torbj|rn Granlund  (tege at echnaton)
                   2274: 
                   2275:        * pyr.md (tstdi): New pattern.  Use 64-bit shift with count zero.
                   2276: 
                   2277:        * pyr-tm.h: -mretd pops args with the retd insn.
                   2278: 
                   2279:        * pyr.md (peep-holes for loop optimizations): Use the R output
                   2280:          format in PRINT_OPERAND, don't use output_branch.
                   2281:        * out-pyr.c: No need for functions output_branch, output_inv_branch.
                   2282: 
                   2283:        * tm-pyr.h (ASM_OUTPUT_ALIGN): Don't truncate alignment to two.
                   2284: 
                   2285: Wed Nov  1 00:38:27 1989  Torbj|rn Granlund  (tege at echnaton.sics.se)
                   2286: 
                   2287:        * out-pyr.c (output_inv_branch): When reversing test operands, ne
                   2288:          remains ne, and eq eq eq.
                   2289: 
                   2290:        * pyr.md: Cleanup output code for compare patterns.
                   2291: 
                   2292:        * pyr.md (return): Adjust frame pointer if
                   2293:          current_function_pretend_args_size != 0.
                   2294: 
                   2295:        * pyr.md (extendsidi2): Use general_operand for the input operand.
                   2296: 
                   2297:        * pyr.md, out-pyr.c: Output shift insns with output_shift.
                   2298: 
                   2299:        * tm-pyr.h, out-pyr.c: Make NOTICE_UPDATE_CC understand how
                   2300:          condition codes are really set.  Define flag CC_VALID_FOR_UNSIGNED
                   2301:          with to make it possible not to reset cc after each compare or
                   2302:          test.
                   2303:        * pyr.md: Don't use CC_STATUS_INIT for most patterns.
                   2304: 
                   2305:        * out-pyr.c (already_sign_extended): Cleanup, correct, optimize.
                   2306: 
                   2307:        * out-pyr.c: rename radr_diff to constant_diff.
                   2308: 
                   2309:        * out-pyr.c (movdi_possible): Don't combine moves from memory to
                   2310:          memory, because of possible address aliasing.  Don't combine moves
                   2311:          with register destination if the source operands are depending on
                   2312:          the destination of the first move, as in
                   2313: 
                   2314:            movw (pr3),pr3
                   2315:            movw 4(pr3),pr4.
                   2316: 
                   2317:        * out-pyr.c (consecutive_operands): Handle SUBREG in addition to REG.
                   2318: 
                   2319:        * out-pyr.c (output_move_double): movl of immediate *sign* extends.
                   2320: 
                   2321: Tue Oct 31 22:51:39 1989  Torbj|rn Granlund  (tege at echnaton.sics.se)
                   2322: 
                   2323:        * pyr.md (cmpsi): Don't expand this.  It's just slower.
                   2324: 
                   2325:        * out-pyr.c (extend_and_branch): Handle only QImode and HImode.
                   2326:          Flush code specific for SImode.
                   2327: 
                   2328:        * out-pyr.c (extend_and_branch): To make zero extensions to HImode
                   2329:          of constants not crash:
                   2330:        * out-pyr.c (ensure_extended): Call extend_const if it's a
                   2331:          CONST_INT.  Don't call extend_const from extend_and_branch.
                   2332:        * pyr.md, out-pyr.md: Use global variable test_mode to determine the
                   2333:          mode of tests and compares.  Set in define_expands for tests and
                   2334:          compares.  Used in extend_and_branch.
                   2335:        * out-pyr.c: Pass mode between extend_and_branch and ensure_extended.
                   2336: 
                   2337:        * out-pyr.c (extend_and_branch): Accept SUBREG whereever REG is
                   2338:          accepted.
                   2339:        * out-pyr.c (weird_memory_memory): Accept SUBREG whereever REG is
                   2340:          accepted.
                   2341: 
                   2342: Thu Nov  2 13:02:15 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2343: 
                   2344:        * gnulib2.c (lshrdi2, and other shifts): Take second arg as long long.
                   2345: 
                   2346:        * out-i386.c (fp_pop_int): Use %L0 in fistp insn.
                   2347: 
                   2348: Wed Nov  1 00:05:59 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2349: 
                   2350:        * stmt.c (init_function_start): Init max_parm_reg.
                   2351: 
                   2352:        * varasm.c (compare_constant_1): For ADDR_EXPR, compare symbol name.
                   2353:        (record_constant_1): Likewise.
                   2354: 
                   2355:        * out-sparc.c (output_mul_by_constant): Constant zero is legitimate.
                   2356: 
                   2357:        * caller-save.c (emit_mult_restore, emit_mult_save):
                   2358:        Handle stack addresses which are invalid.
                   2359: 
                   2360:        * cse.c (use_related_value): Don't abort if offset is 0.
                   2361: 
                   2362: Tue Oct 31 15:08:58 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2363: 
                   2364:        * config.gcc (pyramid): Set $machine to pyr.
                   2365: 
                   2366:        * Makefile: Change temp file names from tmp-insn-* to tmp-*.
                   2367: 
                   2368:        * expr.c (expand_call): OK_DEFER_POP for is_const was once too many.
                   2369: 
                   2370: Sun Oct 29 00:53:46 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2371: 
                   2372:        * c-parse.y (yylex): Prevent warning for numbers that underflow.
                   2373: 
                   2374:        * stmt.c (assign_parms): Convert stack addresses to valid addresses.
                   2375:        (validize_mem): New subroutine.
                   2376: 
                   2377:        * stmt.c (check_for_full_enumeration_handling): Accept enum type
                   2378:        as argument (since was finding it incorrectly).
                   2379:        Delete special case for constant index.
                   2380:        (expand_end_case): Pass enum type; check for constant index.
                   2381: 
                   2382:        * cexp.y (initialize_random_junk): Test DOLLARS_IN_IDENTIFIERS
                   2383:        for nonzeroness.
                   2384: 
                   2385: Fri Oct 27 16:25:19 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2386: 
                   2387:        * tm-next.h (__inline): define as macro for old 1.34 Next uses.
                   2388: 
                   2389: Wed Oct 25 17:59:33 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2390:        * stmt.c: Include recog.h.
                   2391: 
                   2392: Tue Oct 24 19:23:11 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2393: 
                   2394:        * combine.c (try_combine): Don't move a volatile asm.
                   2395: 
                   2396: Mon Oct 23 01:45:34 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2397: 
                   2398:        * combine.c (try_combine): Don't install a subreg relating two modes
                   2399:        that aren't tieable.
                   2400: 
                   2401:        * gnulib2.c (__fixdfdi): Declare __fixunsdfdi.
                   2402: 
                   2403:        * combine.c: Make uid_cuid an int *.
                   2404:        (combine_instructions): Allocate as such.
                   2405:        * loop.c: Make uid_luid an int *.
                   2406:        (loop_optimize): Allocate as such.
                   2407: 
                   2408: Sun Oct 22 16:34:28 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2409: 
                   2410:        * stmt.c (fixup_var_refs_1): New insn before a CALL goes before
                   2411:        the preceding USEs.
                   2412: 
                   2413: Sat Oct 21 00:51:49 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2414: 
                   2415:        * out-pyr.c (extend_and_branch): Allow SUBREG like REG.
                   2416:        * pyr.md (mem-reg and reg-mem HI, QI patterns):
                   2417:        Don't match unless one arg is MEM.
                   2418: 
                   2419:        * out-sparc.c (output_fp_move_double): Use ldd only when safe,
                   2420:        on same conditions used for std.
                   2421: 
                   2422:        * Makefile (gnulib): Fix comments for editing for hpux.
                   2423: 
                   2424: Fri Oct 20 00:27:00 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2425: 
                   2426:        * out-i386.c (singlemove_string): Handle ordinary constants as input.
                   2427: 
                   2428:        * reload1.c (choose_reload_regs): Arg of HARD_REGNO_MODE_OK
                   2429:        was the pseudo; should be the reload reg.
                   2430: 
                   2431:        * tm-decstatn.h (CPP_PREDEFINES): Add bsd4_2, ultrix, MIPSEL, 
                   2432:        host_mips, R3000, LANGUAGE_C, SYSTYPE_BSD.
                   2433:        * tm-mips.h (CPP_PREDEFINES): Add host_mips, R3000, MIPSEB, LANGUAGE_C.
                   2434:        (CPP_SPEC): Remove those from here.
                   2435:        Define __SYSTYPE_*__ always.  Define SYSTYPE_* only if not -ansi.
                   2436:        No CPP_SPEC needed for decstation.
                   2437:        Correct typos in option tests.
                   2438: 
                   2439: Thu Oct 19 18:16:40 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2440: 
                   2441:        * tm-m68k.h, tm-alliant.h (PRINT_OPERAND):
                   2442:        Don't print :l for address if :w was already printed.
                   2443: 
                   2444: Wed Oct 18 13:03:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2445: 
                   2446:        * tm-mips.h (FUNCTION_PROLOGUE): Get rid of __0__gcc macro.
                   2447:        Store that value in frame_stack_difference.
                   2448:        (FUNCTION_EPILOGUE): Get rid of __0__gcc macro.
                   2449:        (FIX_FRAME_POINTER_ADDRESS): Use frame_stack_difference.
                   2450:        * out-mips.c (frame_stack_difference): Define here.
                   2451: 
                   2452:        * gcc.c (compilers): Define __GNUG__ if g++.
                   2453: 
                   2454: Tue Oct 17 01:17:07 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2455: 
                   2456:        * tm-i860.h (HAVE_PRE_INCREMENT): Undefine this.
                   2457: 
                   2458:        * mips.md (movsf): New alternatives for r registers.
                   2459:        * tm-mips.h (FUNCTION_PROLOGUE): Handle big stack frames.
                   2460:        * out-mips.c (function_arg): Handle mode distinction for floating args.
                   2461: 
                   2462:        * pyr.md (mtstsw pattern): Accept general_operand.
                   2463: 
                   2464:        * i860.md (movsf): New alternatives: allow loading r from F.
                   2465:        Prefer f-reg as reload when moving m from F.
                   2466:        * tm-i860.h (PRINT_OPERAND): Handle CONST_DOUBLE if SFmode.
                   2467: 
                   2468: Sun Oct 15 19:45:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2469: 
                   2470:        * i860.md (movhi, movqi): Support moves to/from fp regs.
                   2471: 
                   2472:        * sparc.md (cse'd multiply): New pattern for mult. by -1.
                   2473: 
                   2474:        * out-i860.c (load_opcode, store_opcode): Handle DImode and fp reg.
                   2475: 
                   2476:        * expr.c (emit_library_call, expand_call): Make a SEQUENCE for
                   2477:        any needed USE insns and pass them to emit_call_1.
                   2478:        (emit_call_1): Place the passed SEQUENCE immediately before the
                   2479:        generated CALL_INSN even if gen_call made more than one insn.
                   2480: 
                   2481: Fri Oct 13 00:12:46 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2482: 
                   2483:        * recog.c (constrain_operands): Add case for `&'.
                   2484: 
                   2485:        * expmed.c (extract_bit_field): With structure reg fetched from mem,
                   2486:        don't put in subreg if mode already correct.
                   2487:        (store_bit_field): Typo: had extzv, wanted insv.
                   2488: 
                   2489:        * stmt.c (expand_function_start): Call init_recog.
                   2490: 
                   2491: Thu Oct 12 01:48:30 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2492: 
                   2493:        * cccp.c (macarg1): Count newlines even after backslash.
                   2494: 
                   2495:        * c-decl.c (pushdecl): Don't warn for explicit extern
                   2496:        followed by static.  That case is useful for incomplete arrays.
                   2497: 
                   2498:        * tm-sparc.h (SELECT_RTX_SECTION): Test was backwards.
                   2499: 
                   2500: Wed Oct 11 00:35:25 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2501: 
                   2502:        * tm-seq386.h (DBX_DEBUGGING_INFO): Override this.
                   2503:        (HARD_REGNO_MODE_OK): Override this.
                   2504: 
                   2505: Mon Oct  9 01:09:25 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2506: 
                   2507:        * i860.md (movdi): accept F source in 2nd alternative.
                   2508:        Accept G source in 3rd.
                   2509:        (adddi3, subdi3): Typo in opcode of output.
                   2510: 
                   2511: Sun Oct  8 01:38:27 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2512: 
                   2513:        * tm-mips.h (ASM_SPEC): Pass -nocpp to as.
                   2514: 
                   2515:        * c-decl.c (grokdeclarator): Ignore variant differences
                   2516:        when preserving typedef types from being altered.
                   2517: 
                   2518: Sat Oct  7 00:46:18 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2519: 
                   2520:        * xm-mips.h: Use __builtin_alloca.
                   2521: 
                   2522: Fri Oct  6 00:30:42 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2523: 
                   2524:        * reload.c (find_equiv_reg): Do let xregno be a pseudo reg,
                   2525:        but don't call HARD_REGNO_NREGS in that case.
                   2526: 
                   2527: Thu Oct  5 00:30:39 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2528: 
                   2529:        * reload.c (find_equiv_reg): Don't let xregno be a non-hard reg.
                   2530:        Don't do OVERLAPPING_REGNO_P on a pseudo reg number. 
                   2531: 
                   2532:        * i386.md (trunchiqi2, etc.): Output %1 with size of destination.
                   2533:        * out-i386.c (PRINT_REG): Support 'b' as CODE.
                   2534: 
                   2535:        * combine.c (try_distrib): Make sure we don't move a reg use
                   2536:        across a store into that reg.
                   2537: 
                   2538:        * reload1.c (order_regs_for_reload): Rate fixed regs at LARGE+2,
                   2539:        and explicitly used regs at LARGE+1.
                   2540: 
                   2541:        * stor-layout.c (build_int): When memoizing, make permanent nodes.
                   2542: 
                   2543: Wed Oct  4 19:40:37 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2544: 
                   2545:        * xm-i860.h: Missing file added.
                   2546: 
                   2547: Mon Oct  2 16:26:33 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2548: 
                   2549:        * reload1.c (emit_reload_insns): Reject any OLDEQUIV that is
                   2550:        in use in any other reload of this insn.
                   2551: 
                   2552:        * expr.c (expand_call): Don't put on notes for const functions
                   2553:        if there aren't real insns to hold them.
                   2554: 
                   2555: Sun Oct  1 19:50:59 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2556: 
                   2557:        * integrate.c (expand_inline_function): Handle PARALLEL in CALL_INSNs
                   2558:        when setting follows_call.
                   2559: 
                   2560:        * i860.md (pfeq, pfgt and pfle patterns): Add f0 as 3rd arg.
                   2561: 
                   2562:        * integrate.c (save_for_inline): Don't delete NOTE_INSN_FUNCTION_END.
                   2563: 
                   2564: Fri Sep 29 08:56:30 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2565: 
                   2566:        * tm-next.h (LINK_SPEC): Typo for -Z option.
                   2567: 
                   2568: Thu Sep 28 12:57:11 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2569: 
                   2570:        * reload.c (decompose): Handle case of pseudo with no hard reg.
                   2571: 
                   2572: Wed Sep 27 01:20:36 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2573: 
                   2574:        * explow.c (round_push): Fix typo: return fast if ALIGN is 1.
                   2575: 
                   2576:        * varasm.c (in_text_section): New function.
                   2577:        * tm-3b1.h (ASM_OUTPUT_SKIP): Use that.
                   2578: 
                   2579: Tue Sep 26 02:40:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2580: 
                   2581:        * c-typeck.c (commontype): If one arg is error_mark_node, return other.
                   2582: 
1.1.1.16  root     2583: Sun Sep 24 00:21:24 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2584: 
1.1.1.17  root     2585:        * c-decl.c (poplevel): When popping a local extern decl,
                   2586:        save the TREE_USED bit in the identifier.
                   2587:        * toplev.c (compile_file): Check that, printing "not used" warnings.
                   2588: 
                   2589:        * tree.c (make_node): Always put PARM_DECL in saveable_obstack.
                   2590: 
1.1.1.16  root     2591:        * Version 1.36 released.
                   2592: 
                   2593:        * genextract.c (main): Pass `insn' as arg to `fatal_insn_not_found'.
                   2594: 
                   2595:        * tahoe.md (casel patterns): Use %@ for operand of .align.
                   2596:        * tm-tahoe.h (PRINT_OPERAND): %@ prints `1'.
                   2597:        * tm-harris.h (PRINT_OPERAND): Redefine it; %@ prints `2'.
                   2598: 
                   2599:        * config.gcc (decstation): New entry.
                   2600: 
                   2601:        * tm-harris.h: New file, using tm-tahoe.h.
                   2602: 
                   2603:        * tm-decstatn.h, tm-mips-bsd.h, tm-mips-sysv.h: New files.
                   2604: 
                   2605: Sat Sep 23 00:28:14 1989  Alain Lichnewsky  (lich at glenlivet)
                   2606: 
                   2607:        * added -Zxxx flag in tm-mips.h. (-Z stands for systype)
                   2608: 
                   2609:          used as -ZSYSV or -ZBSD43 on RISC_OS. I suppose
                   2610:          that at somepoint -ZPOSIX might be required for Ultrix. 
                   2611: 
                   2612:        * changed command issued to loader to set -systype and to get
                   2613:           crt1 crtn instead of crt0.
                   2614: 
                   2615:         * changed predefines for cpp to agree with RISC-OS
                   2616: 
                   2617:        * tm-mips.h checks for machine type ( defined(ultrix) == DECSTATION)
                   2618:          so that user does not have to go in and change tm-mips.h anymore
                   2619: 
                   2620:        * cpp defines mips host_mips unix and SYSTYPE_SYSV
                   2621:          or SYSTYPE_BSD43. 
                   2622: 
                   2623: Fri Sep 22 00:31:29 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2624: 
                   2625:        * pyr.md (andsi3): Flush spurious paren.
                   2626: 
                   2627:        * Makefile (hard-params): Don't use LIBS or LIBDEPS.
                   2628: 
                   2629:        * rtl.c (init_rtl):
                   2630:        Use malloc to allocate the string for format of CONST_DOUBLE.
                   2631:        Don't fail to store in rtx_format.
                   2632: 
                   2633: Thu Sep 21 00:33:13 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2634: 
                   2635:        * print-tree.c (dump): Move decl of P in REAL_CST case.
                   2636: 
                   2637:        * fold-const.c (fold): For ABS_EXPR, handle REAL_IS_NOT_DOUBLE.
                   2638: 
                   2639:        * c-convert.c (convert_to_real): Use REAL_VALUE_ATOF to make 0.
                   2640: 
                   2641:        * mips.md (movdi): Handle constant with or without WORDS_BIG_ENDIAN.
                   2642:        For alternative 2, output just 2 store insns, not 3.
                   2643: 
                   2644:        * dbxout.c (dbxout_symbol): Optionally go to .data for
                   2645:        a static file-scope variable.
                   2646:        * tm-vax.h: Define DBX_STATIC_STAB_DATA_SECTION to request this.
                   2647: 
                   2648:        * varasm.c (output_constant, force_const_mem):
                   2649:        ASM_OUTPUT_DOUBLE_INT now takes rtx as argument.
                   2650: 
                   2651:        * gvarargs.h [__NeXT__]: Undefine macros defined by stdardg.h.
                   2652:        Define _VARARGS_H.
                   2653: 
                   2654:        * stddef.h (size_t): Don't define it if _SIZE_T macro is defined.
                   2655:        (NULL): Undef any previous defn.
                   2656: 
                   2657:        * cexp.y (NULL): Don't define if already defined.
                   2658: 
                   2659:        * emit-rtl.c (force_next_line_note): New function.
                   2660:        * stmt.c (expand_function_start): Call that just before returning.
                   2661: 
                   2662: Wed Sep 20 01:22:16 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2663: 
                   2664:        * c-parse.y (asm_clobbers):
                   2665:        Allow string concatenation: call combine_strings.
                   2666: 
                   2667: Mon Sep 18 00:04:06 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2668: 
                   2669:        * expr.c (expand_call): If calling const function, don't defer
                   2670:        pops for this call.
                   2671: 
                   2672:        * c-parse.y (yylex): When float constant ends in `f',
                   2673:        actually truncate to a single-float.
                   2674: 
                   2675: Sun Sep 17 01:36:43 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2676: 
                   2677:        * gcc.c (SWITCH_TAKES_ARG): -A takes an arg.
                   2678:        (link_spec): Inhibit start files when -A.
                   2679: 
                   2680:        * convex.md (call, call_value): Supply dummy arg to RETURN_POPS_ARGS.
                   2681: 
                   2682:        * gnulib2.c (__fixunsdfdi): After removing top half, A can be neg.
                   2683:        (__cmpdi2, __ucmpdi2): Was misusing macros HIGH and LOW--
                   2684:        use .s.high and .s.low to extract words from long_long.
                   2685: 
                   2686:        * Makefile (gnulib2): Run `./gcc'.
                   2687: 
                   2688:        * Makefile (float.h): Use `make', not `$(MAKE)'.
                   2689:        (hard-params.o): Use `$(srcdir)' in deps as in commands.
                   2690: 
                   2691:        * out-tahoe.c (output_move_double): Handle constant operand 1.
                   2692: 
                   2693: Sat Sep 16 01:15:24 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2694: 
                   2695:        * reload1.c (emit_reload_insns): Put death note for input reload reg
                   2696:        even if reload was inherited.
                   2697: 
                   2698:        * out-i860.c (output_block_move): Typo loading size of block.
                   2699: 
                   2700:        * m68k.md (dbra patterns): Do CC_STATUS_INIT.
                   2701: 
                   2702:        * cse.c (fold_rtx): Check GET_MODE_CLASS before floating negate.
                   2703: 
                   2704: Fri Sep 15 00:39:44 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2705: 
                   2706:        * combine.c (subst): Don't combine (subreg (mem))
                   2707:        if subreg's mode is wider than mem's mode.
                   2708: 
                   2709: Thu Sep 14 04:33:51 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2710: 
                   2711:        * Makefile (clean): Delete temp files used in making gnulib.
                   2712: 
                   2713:        * tm-next.h (LINK_SPEC): Pass -Z and -seglinkedit options.
                   2714: 
                   2715: Tue Sep 12 01:06:39 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2716: 
                   2717:        * stor-layout.c (layout_type): Ignore MAX_FIXED_MODE_SIZE for ints.
                   2718: 
                   2719:        * mips.md (cmpsi + bleu peephole): Should output unsigned insn.
                   2720: 
                   2721:        * expmed.c (store_bit_field, extract_bit_field): If loading mem
                   2722:        into reg for bit field insn, don't use a larger mode than insn wants.
                   2723: 
                   2724:        * Makefile (stamp-gnulib2): Depend on gcc, cc1, cpp to avoid
                   2725:        wrong order of making when parallel.
                   2726: 
                   2727:        * Makefile (float.h): Do use $(MAKE) to run recursive make.
                   2728: 
                   2729: Mon Sep 11 00:49:11 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2730: 
                   2731:        * cccp.c (main): Test for missing arg after -o, etc.
                   2732: 
                   2733:        * tm-next.h: Nearly completely new.
                   2734: 
                   2735:        * gcc.c (SWITCH_TAKES_ARG, WORD_SWITCH_TAKES_ARG): Move after config.h.
                   2736: 
                   2737:        * cccp.c: Cast some args to strcpy and strcat.
                   2738: 
                   2739:        * genoutput.c (error): Declare arg S.
                   2740: 
                   2741:        * tm-pyr.h, pyr.md, out-pyr.c, xm-pyr.h: New files.
                   2742:        * config.gcc: New item for pyr.
                   2743: 
                   2744:        * gvarargs.h: If __pyr__, use va-pyr.h.
                   2745: 
                   2746: Sun Sep 10 00:48:43 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2747: 
                   2748:        * reload1.c (inc_for_reload): Really return the first of the insns.
                   2749: 
                   2750:        * stor-layout.c (build_int): Memoize size nodes for sizes <= 32.
                   2751: 
                   2752:        * loop.c (check_dbra_loop): Don't reverse a biv that is used
                   2753:        in between its update and the loop endtest insn.
                   2754: 
                   2755: Sat Sep  9 02:10:49 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2756: 
                   2757:        * stor-layout.c (genop): Don't use `combine' for nonexplicit constants.
                   2758:        Handle some identity elements, etc., directly.
                   2759:        (layout_basetypes): Function deleted.
                   2760:        (layout_record): Ignore any TYPE_DECLs in the fieldlist.
                   2761:        Don't do PCC_BUTFIELD_TYPE_MATTERS hack on field with ERROR_MARK type.
                   2762:        (layout_union): Delete error check for base types.
                   2763:        Ignore any TYPE_DECLs in the fieldlist.
                   2764:        (layout_type): Copy layout info directly into all variants of type.
                   2765:        Delete unused local `x'.
                   2766: 
                   2767:        * mips.md (movdi): Handle constant source operand.
                   2768:        (movsi): Some output code moved to output_load_immediate.
                   2769:        * out-mips.c (output_load_immediate): New function.
                   2770: 
                   2771:        * config.gcc (iris): Use tm-iris.h and xm-iris.h.
                   2772: 
                   2773:        * integrate.c (copy_for_inline): Copy all nonconstant MEM addresses.
                   2774: 
                   2775:        * tm-3b1.h (ASM_OUTPUT_SPACE): New override defn, to output explicit
                   2776:        bytes of 0 if in text segment.
                   2777: 
                   2778: Fri Sep  8 19:15:08 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2779: 
                   2780:        * combine.c (try_combine): Don't do i3dest stuff if i3 isn't a SET.
                   2781: 
                   2782: Thu Sep  7 00:16:32 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2783: 
                   2784:        * integrate.c (function_cannot_inline_p): Fn is "not even close"
                   2785:        only if > 3 * max_insns.
                   2786: 
                   2787:        * toplev.c (fatal_insn_not_found): New fn.
                   2788:        * genextract.c (main): Make insn_extract call that fn.
                   2789: 
                   2790:        * integrate.c (expand_inline_function): Don't abort about bad offset
                   2791:        in a parm whose type is error_mark_node.
                   2792:        Make another syntax level to hold parm destructors.
                   2793: 
                   2794:        * tm-mips.h (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE):
                   2795:        Increment push_loc after, not before, each reg save or restore.
                   2796:        When storing reg 9 or 29, use offset tsize-4.
                   2797:        Make tsize larger by 4 initially.
                   2798:        (STARTING_FRAME_OFFSET): -8, not -4.
                   2799: 
                   2800:        * gcc.c (choose_temp_base): Make use of TMPDIR and P_tmpdir
                   2801:        if they exist.
                   2802: 
                   2803:        * toplev.c, gcc.c, cccp.c, gen*.c (fancy_abort):
                   2804:        New function which can be used to replace `abort'.
                   2805: 
                   2806:        * toplev.c (main): Save argv, argc in save_argv, save_argc.
                   2807: 
                   2808:        * jump.c (delete_insn): Always advance NEXT across deleted insns,
                   2809:        in case not optimizing.  Fixes setting current_function_returns_null.
                   2810: 
                   2811:        * symout.c: Include stddef.h with <...>.
                   2812: 
                   2813: Wed Sep  6 00:39:35 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2814: 
                   2815:        * gcc.c (find_exec_file): Was using `argbuf[0]' where wanted `prog'.
                   2816: 
                   2817:        * combine.c (combine_instructions): Dont call record_dead_and_set_regs
                   2818:        if insn has become a NOTE.
                   2819: 
                   2820:        * reload.c (combine_reloads): Update reload_when_needed.
                   2821: 
                   2822:        * jump.c (delete_insn): If delete label on ADDR_VEC, delete table too.
                   2823:        (jump_optimize): If ADDR_DIFF_VEC label has 1 ref, delete it and table.
                   2824: 
                   2825:        * gunlib2.c (__fixunsdfdi, __floatdfdi): Make the long long,
                   2826:        and/or its two halves, unsigned.
                   2827: 
                   2828:        * reload1.c (reload): When setting double_reg_address_ok,
                   2829:        require it to be offsettable.
                   2830:        * out-sparc.c (output_fp_move_double): Now safe to use std
                   2831:        for all reg+reg addresses.
                   2832: 
                   2833:        * vax.md: Add another simplified-casesi pattern for operand 0 constant.
                   2834: 
                   2835:        * cse.c (fold_rtx): Don't truncate VAL at end if WIDTH is 0.
                   2836:        Don't alter WIDTH for that purpose based on the operands.
                   2837: 
                   2838:        * stmt.c (warn_if_unused_value): && or || is ok if 2nd op has effect.
                   2839: 
                   2840:        * c-parse.y (ALIGNOF unary_expr): Find a larger value if possible.
                   2841: 
                   2842:        * reload.c (combine_reloads): Don't combine an output address reload.
                   2843:        (find_reloads): Call combine_reloads after setting reload_when_needed.
                   2844:        (find_reloads_address): Update OPERAND if copy the operand.
                   2845: 
                   2846:        * cccp.c (macroexpand): Missing arg no error in 1-arg macro if -trad.
                   2847: 
                   2848: Tue Sep  5 14:12:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2849: 
                   2850:        * reload.c (find_dummy_reload): Don't use the output reg if it is
                   2851:        a fixed reg which can overlap with other regs.
                   2852: 
                   2853:        * cse.c (exp_equiv_p): Two vectors must have same length.
                   2854: 
                   2855:        * tree.def (WITH_CLEANUP_EXPR): Print-name string was wrong.
                   2856: 
                   2857:        * optabs.c (expand_fix): Undo previous change (unsigned conversion).
                   2858:        It doesn't work.
                   2859: 
                   2860:        * gcc.c: Pass -i option to cpp.  It takes an arg.
                   2861: 
                   2862:        * cccp.c (cplusplus_include_defaults) [VMS]: Typo in array indices.
                   2863: 
                   2864:        * Makefile (gnulib): Create it in tmpgnulib, then rename at the end.
                   2865: 
                   2866:        * i860.md (movdi from constant pattern): Fix `st' opcode typos.
                   2867: 
                   2868:        * Makefile (hard-params*): Use CCLIBFLAGS, not CFLAGS.
                   2869: 
                   2870: Fri Sep  1 03:43:50 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2871: 
                   2872:        * tm-i386gas.h (ASM_OUTPUT_ALIGN): .align arg isn't a log, in gas.
                   2873:        (ASM_OUTPUT_ALIGN_CODE): Align labels, etc. to 4-byte boundary.
                   2874: 
                   2875:        * integrate.c (save_for_inline): Delete NOTE_INSN_DELETED notes.
                   2876: 
                   2877:        * Makefile (clean): Delete dbr and jump2 dumps.
                   2878: 
                   2879:        * Makefile (gnulib, gnulib2): Compile in main dir, not libtemp subdir.
                   2880:        This avoids trouble with -I options, etc.
                   2881: 
                   2882: Thu Aug 31 15:07:19 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2883: 
                   2884:        * reload1.c (emit_reload_insns):
                   2885:        Be specific moving REG_DEAD notes to an output reload.
                   2886:        Sometimes move them to output-operand-address reloads.
                   2887: 
                   2888:        * out-sparc.c (output_fp_move_double): Very cautious about std.
                   2889:        Use it only for something visibly aligned, or for an array element.
                   2890: 
                   2891:        * cccp.c (main) [VMS]: Remove dirs and extension from PROGNAME.
                   2892:        (pfatal_with_name) [VMS]: Return VMS system call error code as status.
                   2893:        (cplusplus_include_defaults) [VMS]: Add GNU_GXX_INCLUDE.
                   2894: 
                   2895:        * xm-vms.h (FATAL_EXIT_CODE): Now (44 | 0x10000000).
                   2896: 
                   2897:        * expr.c (do_store_flag): Allow more values of STORE_FLAG_VALUE.
                   2898: 
                   2899:        * gnulib2.c (__fixunsdfdi): Explicitly cast doubles to `long int'
                   2900:        to avoid infinite recursion.
                   2901: 
                   2902: Wed Aug 30 13:28:54 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2903: 
                   2904:        * loop.c (skip_consec_insns): Skip NOTEs.
                   2905: 
                   2906:        * loop.c (general_induction_var): If G or V is a nonreplaceable giv,
                   2907:        give up.  If G is allocated here, consider it replaceable.
                   2908: 
                   2909:        * stupid.c: Make uid_suid, reg_where_born and reg_where_dead
                   2910:        vectors of ints, not short.
                   2911: 
                   2912: Tue Aug 29 00:21:13 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2913: 
                   2914:        * tm-iris.h: Fix typo in formfeed char.
                   2915: 
                   2916:        * out-i860.c (singlemove_string): Add missing `.l' to `st', `ld'.
                   2917: 
                   2918:        * loop.c (general_induction_var): Don't set G from 2nd op. of MINUS,
                   2919:        since that would negate the result.
                   2920: 
                   2921: Mon Aug 28 00:16:36 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   2922: 
                   2923:        * dbxout.c (dbxout_symbol): When we need a pointer type, don't
                   2924:        record it in TYPE_POINTER_TO, lest it not live as long as its target.
                   2925: 
                   2926:        * tm-hp9k320.h (CPP_PREDEFINES): Delete __hp9000s300 and _HPUX_SOURCE.
                   2927: 
                   2928:        * Makefile (gnulib): Deleted stamp-gnulib2 in wrong dir.
                   2929:        (hard-params.o): Copy it into current dir before compiling.
                   2930:        (STAGESTUFF): Include the stamp-*.[ch] files.
                   2931: 
                   2932: Sun Aug 27 13:59:39 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   2933: 
                   2934:        * out-i860.c (output_size_for_block_move): Typo in CC_KNOW_HI_R31.
                   2935: 
                   2936:        * integrate.c (expand_inline_function): Ignore insns to set value reg
                   2937:        if we don't want the value.
                   2938: 
                   2939:        * varasm.c (make_function_rtl, make_decl_rtl): Use DECL_ASSEMBLER_NAME.
                   2940: 
                   2941:        * Makefile (stamp-gnulib2): Don't explicitly delete old members,
                   2942:        just replace them.
                   2943: 
                   2944:        * m68k.md, alliant.md (trunchiqi): Use movew if moving from memory
                   2945:        or from a const_int.
                   2946: 
                   2947:        * integrate.c (expand_inline_function): Set first_parm_offset
                   2948:        later on, after computing the args, in case those args
                   2949:        contain inline function calls.
                   2950: 
                   2951:        * alliant.md (movqi): Like recent change in m68k.md.
                   2952: 
                   2953: Sat Aug 26 00:26:03 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   2954: 
                   2955:        * tm-hp9k320.h (CPP_PREDEFINES): Take out m68k and mc68000.
                   2956:        * tm-news.h (CPP_PREDEFINES): Add mc68000.
                   2957: 
                   2958: Fri Aug 25 15:37:35 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   2959: 
                   2960:        * optabs.c (expand_fix): Can convert to unsigned int
                   2961:        by subtracting 2**(N-1), converting to signed, and adding 2**(N-1).
                   2962: 
                   2963:        * reload.c (find_reloads_address): For out-of-range stack slot,
                   2964:        reload the displacement into a reg.
                   2965:        (find_reloads_toplev): For subreg of a reg with a reg_equiv_address,
                   2966:        turn the whole thing into a memref.
                   2967: 
                   2968: Thu Aug 24 14:07:03 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   2969: 
                   2970:        * c-decl.c (grokdeclarator): If function is declared `extern inline',
                   2971:        set current_extern_inline.
                   2972:        (start_function): In that case, set TREE_EXTERN in function decl.
                   2973:        * toplev.c (rest_of_compilation): In that case, don't really compile.
                   2974:        (compile_file): Don't output such functions at the end either.
                   2975: 
                   2976:        * c-typeck.c (build_function_call): Do set NAME if we have one.
                   2977: 
                   2978:        * Prevent any variability in results of qsort.
                   2979:        * stupid.c (stupid_reg_compare): Compare by regno as last resort.
                   2980:        * global-alloc.c (allocno_compare): Same idea.
                   2981:        * local-alloc.c (qty_compare_1): Same idea.
                   2982:        * reload1.c (hard_reg_use_compare, reload_reg_class_lower): Same idea.
                   2983: 
                   2984:        * cccp.c (macroexpand): If read one arg, but it's whitespace,
                   2985:        consider that 0 args for checking number of args.
                   2986:        Improve plurals in error messages.
                   2987: 
                   2988:        * expr.h (inhibit_defer_pop): New name for current_args_size,
                   2989:        now declared here.
                   2990:        (NO_DEFER_POP, OK_DEFER_POP): Moved here.
                   2991:        * expr.c: Names related to current_args_size renamed.
                   2992:        (clear_current_args_size): Deleted.
                   2993:        * stmt.c (expand_function_start): Init inhibit_defer_pop here.
                   2994: 
                   2995:        * stmt.c (expand_start_stmt_expr): Do NO_DEFER_POP.
                   2996:        (expand_end_stmt_expr): Do OK_DEFER_POP, and don't do deferred pops.
                   2997: 
                   2998:        * Makefile (c-parse.tab.c): Pass -o option to Bison.
                   2999: 
                   3000: Wed Aug 23 23:14:06 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   3001: 
                   3002:        * expmed.c (store_bit_field, extract_bit_field):
                   3003:        Use GET_MODE_WIDER_MODE to scan possible modes for bestmode.
                   3004: 
                   3005:        * Makefile (stamp-gnulib2): Discard error messages from `ar d'.
                   3006: 
                   3007: Tue Aug 22 00:31:51 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   3008: 
                   3009:        * final.c (output_source_line): In COFF, don't output `.ln 0'.
                   3010: 
                   3011:        * Makefile (stamp-gnulib2): Depend on gnulib.  For parallel make.
                   3012: 
                   3013:        * stmt.c (uninitialized_vars_warning): Don't crash if DECL_RTL is 0.
                   3014: 
                   3015:        * i386.md (truncdfsf2): Pay attention whether stack top is dead.
                   3016: 
                   3017: Mon Aug 21 22:02:40 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   3018: 
                   3019:        * reload1.c (choose_reload_regs): Don't use regno uninitialized,
                   3020:        in the code that does find_equiv_reg.
                   3021: 
                   3022: Sun Aug 20 00:06:47 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   3023: 
                   3024:        * m68k.md (movqi): Was outputting bad code for areg->mem and mem->areg.
                   3025: 
                   3026:        * explow.c (memory_address): Handle a hard reg in wrong reg class.
                   3027: 
                   3028:        * stmt.c (expand_function_end): Set REG_FUNCTION_VALUE_P in return
                   3029:        reg when returning address of structure value block.
                   3030: 
                   3031:        * integrate.c (save_for_inline): Preserve integrated bit on insns.
                   3032: 
                   3033: Sat Aug 19 14:20:07 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   3034: 
                   3035:        * combine.c (subst): Don't change (subreg:M (mem:N ...)) to 
                   3036:        (mem:M ...) if address is mode-dependent.
                   3037: 
                   3038:        * config.gcc: Copy and alter Makefile for any srcdir except `.'.
                   3039:        In that case, make a .gdbinit as well.
                   3040: 
                   3041:        * sparc.md (andcbsi3, iorcbsi3, xorcbsi3): These are not commutative.
                   3042: 
                   3043:        * vax.md (cmpv and cmpzv patterns): Use COMPARE, not MINUS.
                   3044: 
                   3045: Fri Aug 18 12:24:52 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   3046: 
                   3047:        * alliant.md (movqi): Change move to mov in assembler code.
                   3048: 
                   3049:        * integrate.c (expand_inline_function):
                   3050:        Handle args passed in regs and copied to slots reached via arg ptr.
                   3051: 
                   3052:        * out-sparc.c (output_delayed_branch):
                   3053:        Do alter_subreg on operands of delay insn.
                   3054: 
                   3055:        * reload1.c (choose_reload_regs): Look for a reg to share
                   3056:        before one that we won't share.
                   3057: 
                   3058:        * expr.h: Define OPTAB_MUST_WIDEN.
                   3059:        * optabs.c (expand_binop): Handle that case.
                   3060:        * expmed.c (expand_shift): Use that when widening lshift to ashift.
                   3061: 
                   3062:        * optabs.c (emit_cmp_insn): Use CONST0_RTX, not individual vars.
                   3063: 
                   3064:        * gnulib2.c (lsh*di3, ash*di3): Return right away if count is zero.
                   3065:        Otherwise tried to shift by 32.
                   3066:        Also replace constant 32 by something symbolic.
                   3067: 
                   3068:        * final.c (output_source_line): Output line number in COFF
                   3069:        even if wrong file.
                   3070: 
                   3071: Thu Aug 17 15:16:34 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   3072: 
                   3073:        * Makefile (version.o): Make this a target; specify source file.
                   3074:        (obstack.o): Likewise.
                   3075: 
                   3076:        * config.gcc (i860): New alternative.
                   3077: 
                   3078:        * i860.md (movstrsi): Record the alignment as operand 3.
                   3079:        Renumber following (internal) operands.
                   3080:        * out-i860.c (output_block_move): Rewrite as in out-sparc.c.
                   3081:        (output_size_for_block_move): Likewise.  And don't
                   3082:        subtract alignment from the size.
                   3083: 
                   3084: Wed Aug 16 13:27:12 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   3085: 
                   3086:        * loop.c (combine_movables): Don't combine zero-extend
                   3087:        registers that live outside the loop.
                   3088: 
                   3089:        * integrate.c (expand_inline_function): Use copy_to_mode_reg
                   3090:        to set up this_struct_value_rtx, to handle sums right.
                   3091: 
                   3092:        * Makefile: Use $(srcdir) in bison output files used as deps.
                   3093:        Supply some missing deps.
                   3094:        (*.info, doc): *.info files go in srcdir.
                   3095: 
                   3096: Tue Aug 15 00:11:12 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   3097: 
                   3098:        * i860.md, tm-i860.h, out-i860.c: New files.
                   3099: 
                   3100:        * c-decl.c (duplicate_decls): Fix bug determining whether NEWDECL
                   3101:        is a definition or just a decl.
                   3102:        Combine code to preserve various things from old definition
                   3103:        through a declaration.
                   3104: 
                   3105:        * config.gcc: Scan all args at beginning, setting variables.
                   3106:        Arg of form -srcdir=... sets srcdir explicitly.
                   3107:        srcdir now doesn't contain a slash, and is used with a slash.
                   3108: 
                   3109:        * Makefile (install): Copy header files and gcc.1 from srcdir.
                   3110:        But copy float.h from current dir.  (Remove that from USER_H.)
                   3111:        (various): Use new variable INCLUDES to get the -I options.
                   3112:        Add -I. at the beginning of these.
                   3113:        (gnulib, gnulib2): Likewise, use SUBDIR_INCLUDES.
                   3114:        Also, get source file from srcdir.
                   3115:        Also, depend on $(CONFIG_H).
                   3116:        (alloca.o): Get alloca.c from srcdir.
                   3117: 
                   3118:        * reload1.c (emit_reload_insns): Bug in last change:
                   3119:        don't fail to set this_reload_insn.
                   3120: 
                   3121:        * Makefile (Bison rules): Specify $(srcdir) for target and source.
                   3122:        (Explicit C rules): Specify $(srcdir)/ for source in commands.
                   3123:        Use sed to eliminate `./' in normal case.
                   3124:        (insn-*.c): Use $(srcdir) to run move-if-change.
                   3125: 
                   3126:        * config.gcc: Check . and .. for the sources.
                   3127:        If in .., use that when making links.
                   3128:        Also, copy Makefile, alter srcdir in it, and add a VPATH.       
                   3129: 
                   3130:        * stmt.c (expand_end_case): When converting CONST_INT index
                   3131:        to an INTEGER_CST, sign-extend if signed type.
                   3132: 
                   3133: Mon Aug 14 13:51:08 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   3134: 
                   3135:        * c-decl.c (duplicate_decls): Warn for qualifier mismatch
                   3136:        only if pedantic; don't consider it a type mismatch.
                   3137:        Merge the qualifiers of the two decls if the types match.
                   3138: 
                   3139:        * expmed.c (store_bit_field): For insv, memref displacement
                   3140:        always counts in bytes, regardless of unit fetched.
                   3141:        When checking predicate of op0, accept any mode.
                   3142: 
                   3143:        * optabs.c (expand_float): One call to can_float_p had args backwards.
                   3144: 
                   3145:        * loop.c (check_dbra_loop): Set the JUMP_LABEL of the new jump insn.
                   3146:        Increment label's use count rather than storing 2.
                   3147: 
                   3148:        * Makefile: Instead of $<, which fails in certain makes,
                   3149:        use $@ and then substitute in the name with sed.
                   3150: 
                   3151:        * out-sparc.c (output_scc_insn): Handle CC_REVERSED for ordered tests.
                   3152:        Use orcc insns to store the result and set cc's for it.
                   3153: 
                   3154:        * sparc.md (scc combination patterns):
                   3155:        Use operands[0] as basis for recorded cc value.
                   3156: 
                   3157:        * gnulib2.c (floatdidf, fixdfdi, fixunsdfdi): New functions.
                   3158: 
                   3159:        * gnulib.c (floatdidf, fixdfdi, fixunsdfdi): Deleted.
                   3160:        (union longlong, union double_di): Deleted.
                   3161:        (HIGH, LOW): Deleted.
                   3162:        These were deleted because most did not handle full range of DI
                   3163:        and they didn't use the right calling convention for DI.
                   3164: 
                   3165: Sun Aug 13 13:06:45 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   3166: 
                   3167:        * c-typeck.c (comptypes): Qualifiers must match.
                   3168:        (Was already true for scalars.)
                   3169:        Also, array elt qualifiers must match.
                   3170: 
                   3171:        * tm-apollo68.h (STRUCT_VALUE): Make it 0.
                   3172:        (This was done before and lost.)
                   3173:        * out-i386.c (function_epilogue): Use ret $4 to pop structure address.
                   3174:        (This was done before and lost.)
                   3175: 
                   3176:        * out-i386.c (call_top_dead_p): Don't fail to check
                   3177:        the rtx code of the insns themselves.
                   3178:        (This was done before and lost.)
                   3179: 
                   3180:        * out-sparc.c (output_block_move): If align is 8, make it 4.
                   3181: 
                   3182:        * typeclass.h: New file.
                   3183:        * expr.c: Include it.
                   3184:        (expand_builtin): Use those codes in __builtin_classify_type.
                   3185: 
                   3186:        * Makefile (all, lang-c): Reinstall gnulib2.
                   3187: 
                   3188:        * Makefile (gnulib2): Don't give up if `ar d' fails.
                   3189: 
                   3190:        * expr.c (emit_library_call): New 2nd arg NO_QUEUE.
                   3191:        All callers changed to pass it.
                   3192:        * optabs.c (expand_binop, expand_unop): Don't call emit_queue.
                   3193:        Instead, pass 1 for NO_QUEUE to emit_library_call.
                   3194: 
                   3195: Sat Aug 12 12:05:22 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   3196: 
                   3197:        * reload1.c (emit_reload_insns): Decision for where to put input
                   3198:        reload insn is now common to ordinary case and auto-increment.
                   3199:        Likewise, updating these positions afterward.
                   3200: 
                   3201:        * stmt.c (assign_parms): Treat last named arg as nameless.
                   3202:        * expr.c (expand_call): Likewise.
                   3203: 
                   3204:        * explow.c (copy_to_mode_reg): Use force_operand for PLUS or MULT.
                   3205:        (copy_addr_to_reg): Use copy_to_mode_reg.
                   3206: 
                   3207:        * expmed.c (store_bit_field): Handle case where insv rejects memrefs.
                   3208: 
                   3209:        * tm-convex.h (ASM_OUTPUT_ALIGN): Magic to handle the fact
                   3210:        that this is not called when LOG is 0.
                   3211: 
                   3212: Fri Aug 11 16:39:51 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   3213: 
                   3214:        * emit-rtl.c (get_lowpart): For multi-word, in error check,
                   3215:        test the unit size of the containing mode.
                   3216: 
                   3217:        * cccp.c (macroexpand, dump_all_macros): Return void.
                   3218:        (macroexpand): Cast sprintf arg to char*.
                   3219:        (error, warning, error_with_line): Declare first arg char*.
                   3220: 
                   3221: Thu Aug 10 21:42:13 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   3222: 
                   3223:        * expr.c (expand_call):
                   3224:        Use force_operand to copy arithmetic to register.
                   3225: 
                   3226:        * dbxout.c (dbxout_symbol): Go back to N_FUN for const variable.
                   3227: 
                   3228:        * integrate.c (expand_inline_function): Use proper machine mode
                   3229:        for a structure value in memory at address passed by caller.
                   3230: 
                   3231: Wed Aug  9 15:21:36 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3232: 
                   3233:        * config.gcc: Delete unnecessary variable assignments in case stmt.
                   3234:        (isi68-nfp): New alternative.
                   3235: 
                   3236:        * combine.c (try_combine): Don't substitute for a register
                   3237:        which is being explicitly clobbered.
                   3238: 
                   3239:        * This change was requested for C++.
                   3240:        * varasm.c (decode_reg_name, make_decl_rtl): Arg ASMSPEC now char *.
                   3241:        * toplev.c (rest_of_decl_compilation): Likewise.
                   3242:        * c-decl.c (finish_decl): Change call to rest_of_decl_compilation.
                   3243: 
                   3244:        * tree.h (struct tree_decl): Pack machine_mode into 8 bits.
                   3245: 
                   3246:        * explow.c (memory_address, copy_to_reg):
                   3247:        Use force_operand to copy arithmetic to register.
                   3248: 
                   3249:        * tm-isi68-nfp.h: New file.
                   3250:        * tm-isi68.h: Allow overriding TARGET_DEFAULT, and let that
                   3251:        change CPP_SPEC and LINK_SPEC.
                   3252:        (ASM_FILE_START): No `.globl fltused' if soft-float.
                   3253: 
                   3254: Tue Aug  8 21:50:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3255: 
                   3256:        * varasm.c (const_hash): For constructor, mask TREE_TYPE to HASHBITS
                   3257:        bits and take modulo, so we don't get negative numbers.
                   3258: 
                   3259:        * varasm.c (record_constant_1, compare_constant_1):
                   3260:        Record and compare the width of an integer.
                   3261: 
                   3262:        * varasm.c (assemble_function, assemble_variable, get_or_assign_label):
                   3263:        (force_const_mem): Don't call ASM_OUTPUT_ALIGN if boundary is 1.
                   3264: 
                   3265:        * c-decl.c (duplicate_decls): Consider const and volatile as part of
                   3266:        type when checking for match and when installing new type into OLDDECL.
                   3267: 
                   3268:        * expr.c (do_store_flag): Make sure target fits operand predicate.
                   3269:        Also, omit the AND insn when true-value is 1
                   3270:        and the mode we get is wider than the one we want.
                   3271: 
                   3272:        * genrecog.c (main): Make insn-recog.c include real.h.
                   3273: 
                   3274: Mon Aug  7 16:58:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3275: 
                   3276:        * genemit.c (main): Define `operands' as `emit_operands',
                   3277:        not `recog_operands'.
                   3278: 
                   3279:        * reload1.c (emit_reload_insns): Don't copy back a dead output reg.
                   3280: 
                   3281: Sun Aug  6 13:56:53 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3282: 
                   3283:        * sdbout.c (plain_type_1, sdbout_one_type): Use the main variant.
                   3284:        (sdbout_type_fields): No need to check TREE_ASM_WRITTEN here,
                   3285:        since sdbout_one_type does that.
                   3286: 
                   3287:        * expr.c (do_store_flag): Ensure the CLOBBER doesn't clobber an input.
                   3288: 
                   3289:        * fold-const.c (fold_convert): Attempt to avoid overflow
                   3290:        when converting real to integer.  Use unsigned conversion for
                   3291:        low part; always convert as positive and then change sign;
                   3292:        subtract high part before converting low part.
                   3293:        Also, check for real values out of range for chosen int type;
                   3294:        warn and do not convert.
                   3295: 
                   3296:        * tm-hp9k320.h (CPP_SPEC) [not HPUX_ASM]: Don't define mc68000 here.
                   3297:        (CPP_PREDEFINES): Remove mc68k, add m68k and mc68000.
                   3298:        [HPUX_ASM]: Define CPP_SPEC here as in the other case,
                   3299:        but add __HPUX_ASM__ to each alternative.
                   3300: 
                   3301:        * tm-m68k.h (FUNCTION_EPILOGUE): Call new hook FUNCTION_EXTRA_EPILOGUE.
                   3302:        * tm-altos3068.h (FUNCTION_EXTRA_EPILOGUE): Define it.
                   3303: 
                   3304:        * Makefile: Use $< wherever appropriate.
                   3305:        Also put definitions of customization vars before the comments
                   3306:        saying how to override them.
                   3307: 
                   3308: Sat Aug  5 14:15:39 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3309: 
                   3310:        * i386.md (sne): Typo in opcode name.
                   3311: 
                   3312:        * tree.h (struct tree_identifier): Delete redundant/unused error_locus.
                   3313: 
                   3314: Fri Aug  4 00:04:10 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3315: 
                   3316:        * varasm.c (const_hash, compare_constant_1, record_constant_1):
                   3317:        Compare types only for record constructors, not for array constructors.
                   3318: 
                   3319:        * dbxout.c (dbxout_parms): When outputing parm from home in local slot,
                   3320:        with address from the RTL, don't do big-endian correction on it.
                   3321: 
                   3322:        * c-typeck.c (build_unary_op): Do default conversion for unary +.
                   3323: 
                   3324:        * cccp.c (rescan): Accept comments between macro and its args.
                   3325: 
                   3326:        * c-decl.c (lang_decode_option): -traditional implies writable strings.
                   3327: 
                   3328:        * cccp.c (trigraph_pcp): Make warning msg more accurate.
                   3329: 
                   3330:        * c-typeck.c (c_expand_asm_operands): Delete the default promotion
                   3331:        which was inserted mysteriously since 1.35.
                   3332: 
                   3333:        * global-alloc.c (global_conflicts): Allocate regs_set only once.
                   3334:        Make it twice as big since clobbers are stored twice.
                   3335: 
                   3336:        * sparc.md (block move patterns): Record and use alignment operand.
                   3337:        * out-sparc.c (output_block_move): Get alignment from there.
                   3338:        (output_size_for_block_move): Greatly simplified.
                   3339: 
                   3340:        * tm-i386v.h (PCC_BITFIELD_TYPE_MATTERS): Define it.
                   3341: 
                   3342:        * stor-layout.c (layout_record): Anonymous bitfields don't affect
                   3343:        overall structure alignment, in PCC_BITFIELD_TYPE_MATTERS case.
                   3344: 
                   3345:        * loop.c (strength_reduce): Prevent hard reg from becoming biv or giv.
                   3346: 
                   3347:        * combine.c (subst): Simplify (eq (neg ...) (const_int 0)).
                   3348: 
                   3349: Thu Aug  3 13:08:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3350: 
                   3351:        * cse.c (fold_rtx): For (op var const) special cases, also check 
                   3352:        for constant as first argument.
                   3353: 
                   3354:        * c-decl.c (pushtag): For global_binding_level, make permanent nodes.
                   3355: 
                   3356:        * expr.c (do_store_flag): Put the CLOBBER before the comparison.
                   3357: 
                   3358:        * expr.c (emit_push_insn): Conditionalize recent changes
                   3359:        on no FIRST_PARM_CALLER_OFFSET, so they don't happen on sparc.
                   3360: 
                   3361:        * out-sparc.c (gen_scc_insn):
                   3362:        Don't be confused by CLOBBER emitted by do_store_flag.
                   3363:        Skip past such insns looking for last_insn.
                   3364:        Don't alter last_insn; instead, patch it to a NOTE and emit new insn.
                   3365: 
                   3366:        * varasm.c (const_hash, compare_constant_1, record_constant_1):
                   3367:        For a CONSTRUCTOR, hash/compare/record type as well as elts.
                   3368: 
                   3369:        * cse.c (cse_insn): July 18 change was wrong.
                   3370:        Now, invalidate at the beginning any regs explicitly clobbered
                   3371:        so they will not be substituted for if they appear as inputs.
                   3372:        * sparc.md (movstrsi): Copy addresses to temp regs, then use them.
                   3373: 
                   3374:        * loop.c (record_giv): When comparing life spans for setting
                   3375:        ->forces, use luids consistently, not uids.
                   3376: 
                   3377:        * sparc.md (ashlsi3, ashrsi3, lshrsi3): Truncate constants mod 32.
                   3378: 
                   3379: Wed Aug  2 17:50:30 1989  Richard Stallman  (rms at sugar-bombs)
                   3380: 
                   3381:        * mips.md (patterns to move a subreg): Deleted.
                   3382: 
                   3383: Sun Jul 30 19:23:13 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3384: 
                   3385:        * gcc.c (process_command): Skip `-b' like `-B', in 2nd scan.
                   3386: 
                   3387:        * xm-sunos4.h: Deleted.
                   3388:        * tm-sparc.h, tm-sun3.h: Define LINK_SPEC here instead.
                   3389:        * tm-sun4os3.h: Undef it here.
                   3390:        * tm-sun3os3.h, tm-sun3os3nf.h: New files to undef LINK_SPEC.
                   3391:        * config.gcc: Use those new files where needed.
                   3392: 
                   3393:        * config.gcc: Delete sun3-fpa and sun3-os4-fpa.
                   3394:        * tm-sun3-fpa.h: Deleted.
                   3395: 
                   3396:        * cccp.c (do_include): Mention even non-ex files for -M.
                   3397: 
                   3398:        * out-mips.c (addr_compensate): Handle HImode.
                   3399:        * mips.md (Set HI from subreg of SI rule):
                   3400:        Allow operand in memory.
                   3401: 
                   3402:        * mips.md (cmpqi, cmphi): Patterns deleted.
                   3403:        (cmpsi, cmpsf, cmpdf): Change predicates to register_operand.
                   3404: 
                   3405:        * cexp.y (rule for ?:): Result is unsigned if either operand is.
                   3406: 
                   3407:        * expr.c (emit_push_insn): If PARTIAL > 0, load the partial regs
                   3408:        at the end, in case the rest of the push does a function call.
                   3409: 
                   3410:        * reload1.c (alter_frame_pointer_addresses):
                   3411:        After altering a PLUS, re-fetch CODE before scanning subexps.
                   3412: 
                   3413:        * stmt.c (assign_parms): Don't copy the arg pointer value
                   3414:        if it is also the frame pointer.  If we do copy it,
                   3415:        inhibit REG_EQUIV notes for parms copied into pseudo regs
                   3416: 
                   3417:        * integrate.c (copy_for_inline, copy_rtx_and_substitute):
                   3418:        Set up filename and lineno fields of copy of ASM_OPERANDS.
                   3419: 
                   3420: Sat Jul 29 18:58:49 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3421: 
                   3422:        * integrate.c (expand_inline_function): Handle struct-value-addr
                   3423:        passed in memory just like that passed in reg:
                   3424:        in either case, translate the pseudo-reg made in
                   3425:        expand_function_start.
                   3426:        (function_cannot_inline_p): Permit inlining in that case.
                   3427:        But reject it if using pcc-style return convention.
                   3428: 
                   3429:        * stor-layout.c (layout_type): Consider STRICT_ALIGNMENT
                   3430:        for ARRAY_TYPE just as for RECORD_TYPE.
                   3431: 
                   3432: Wed Jul 26 12:54:59 1989  Richard M. Stallman  (rms at mipos3)
                   3433: 
                   3434:        * cse.c (fold_rtx): If WIDTH is zero for binary operator,
                   3435:        look at the modes of the original operands.
                   3436: 
                   3437:        * cse.c (cse_insn): Set prev_insn_explicit_cc0, for (set (cc0) INT).
                   3438:        (predecide_loop_entry): Likewise.
                   3439:        (fold_rtx): Look at it, for (if_then_else (cc0) ...).
                   3440: 
                   3441:        * expr.c (expand_builtin): Pass back return value from
                   3442:        __builtin_saveregs.
                   3443: 
                   3444:        * stmt.c (assign_parms): Allow arg pointer reg not to be fixed.
                   3445:        If it is not, copy it to a pseudo reg and use that later on.
                   3446: 
                   3447: Tue Jul 25 15:42:04 1989  Richard M. Stallman  (rms at mipos3)
                   3448: 
                   3449:        * expr.c (expand_builtin): New builtin __builtin_classify_type.
                   3450:        * tree.h, c-decl.c: Additional support.
                   3451: 
                   3452:        * flow.c (mark_used_regs): Treat arg pointer like stack pointer.
                   3453: 
                   3454:        * expr.c (emit_library_call):
                   3455:        Pass (tree)0 as TYPE arg to FUNCTION_ARG, etc.
                   3456: 
                   3457: Mon Jul 24 11:18:10 1989  Richard M. Stallman  (rms at mipos3)
                   3458: 
                   3459:        * loop.c (regs_match_p): Fix braino.
                   3460: 
                   3461:        * integrate.c (copy_for_inline, copy_rtx_and_substitute):
                   3462:        Make ASM_OPERANDS constraint vector be shared like operand vector.
                   3463: 
                   3464:        * xm-iris.h: New file.
                   3465: 
                   3466:        * Makefile (stage4): New target.
                   3467: 
                   3468:        * gnulib2.c (badd, bsub, bmul, bdiv): If want long value from
                   3469:        arithmetic, widen the operands first.
                   3470:        (__div_internal aka bdiv): Rename to __bdiv.
                   3471: 
                   3472:        * sparc.md (seq combination patterns): Fully initialize cc_status.
                   3473: 
                   3474:        * expr.c (emit_push_insn): Like July 19 change, for BLKmode.
                   3475: 
                   3476:        * stmt.c (expand_function_end): Stack-restore for alloca
                   3477:        is now done after the return_label.
                   3478: 
                   3479:        * loop.c (scan_loop): Set MAYBE_NEVER for conditional jump to loopbeg.
                   3480: 
                   3481:        * integrate.c (copy_rtx_and_substitute): Allow mapping of hard regs.
                   3482:        (expand_inline_function): Always create parm_map.
                   3483:        Handle structure value that way if nec. even if no parms.
                   3484:        Otherwise, find the pseudo used in the function to hold the
                   3485:        structure address, and map it to a new pseudo.
                   3486: 
                   3487:        * expr.c (expand_call):
                   3488:        Use mark_addressable to make FNDECL addressable.
                   3489:        * c-typeck.c (mark_addressable): No longer static.
                   3490: 
                   3491:        * cse.c (cse_insn): Modify last change: don't canon_reg
                   3492:        for hard regs inside clobbers.
                   3493: 
                   3494:        * expr.c (expand_assignment): ALIGN arg to store_field comes from
                   3495:        the structure, not from the value stored.
                   3496: 
                   3497: Fri Jul 21 16:23:45 1989  Richard M. Stallman  (rms at mipos3)
                   3498: 
                   3499:        * stmt.c (warn_if_unused_value): Don't warn for a cast
                   3500:        around a MODIFY_EXPR.
                   3501: 
                   3502:        * tm-hp9k320.h (PCC_STATIC_STRUCT_RETURN): Undefine it.
                   3503:        (CPP_PREDEFINES): Add some.
                   3504: 
                   3505:        * combine.c (simplify_and_const_int):
                   3506:        Simplify (and (ashiftrt (zero_extend FOO) N) M).
                   3507: 
                   3508:        * optabs.c (expand_binop): When widening,
                   3509:        for some operations we need not actually extend.
                   3510: 
                   3511: Thu Jul 20 16:16:35 1989  Richard M. Stallman  (rms at mipos3)
                   3512: 
                   3513:        * Makefile (insn-emit.o): Depend on insn-codes.h.
                   3514: 
                   3515:        * stmt.c (check_for_full_enumeration_handling): 
                   3516:        Handle all cases for TYPE_NAME of enum type.
                   3517: 
                   3518: Wed Jul 19 17:00:39 1989  Richard M. Stallman  (rms at mipos3)
                   3519: 
                   3520:        * fold-const.c (fold_convert): Don't fail to force_fit_type.
                   3521: 
                   3522:        * expr.c (emit_push_insn): When pushing only part of scalar on stack,
                   3523:        adjust stack offset not to count the words not pushed.
                   3524: 
                   3525:        * stmt.c (expand_function_end): Always put return structure address
                   3526:        in return register.
                   3527: 
                   3528:        * c-typeck.c (process_init_constructor): Assume 0 for nameless field.
                   3529: 
                   3530:        * recog.c (general_operand, memory_operand):
                   3531:        Check validity of mem address using the mode of the MEM.
                   3532: 
                   3533:        * fixincludes: When calling egrep, use redirect, not -s.
                   3534: 
                   3535: Tue Jul 18 11:18:55 1989  Richard M. Stallman  (rms at mipos3)
                   3536: 
                   3537:        * Makefile (bootstrap*): Pass value of libdir down.
                   3538: 
                   3539:        * cse.c (cse_insn): Do canon_reg on any CLOBBERs and USEs.
                   3540: 
                   3541:        * cse.c (cse_insn): Don't use no_labels_between_p to check
                   3542:        for jump to following label; find following label and compare.
                   3543: 
                   3544:        * combine.c (try_combine): Don't substitute into subreg(x)=y
                   3545:        if modes of x and y are not tieable.
                   3546: 
                   3547:        * out-i386.c (call_top_dead_p): Don't fail to check
                   3548:        the rtx code of the insns themselves.
                   3549: 
                   3550:        * i386.md (tstsf, tstdf): Don't discard TOS if not dead.
                   3551: 
                   3552:        * stupid.c: Don't use regs with PRESERVE_DEATH_INFO_REGNO_P
                   3553:        for pseudos which live across jumps or labels.
                   3554:        (stupid_life_analysis): Update last_jump_suid, last_label_suid.
                   3555:        (stupid_mark_refs): Use those to set reg_crosses_blocks.
                   3556:        (stupid_find_reg): Check that data, passed from stupid_life_analysis.
                   3557: 
                   3558:        * toplev.c (main): Avoid using caddr_t.
                   3559: 
                   3560:        * mips.md (inverted bgeu peephole): Typo in opcode.
                   3561: 
                   3562: Mon Jul 17 12:29:45 1989  Richard M. Stallman  (rms at mipos3)
                   3563: 
                   3564:        * i386.md (mulb patterns): Turned off due to assembler bug.
                   3565: 
                   3566:        * rtl.c (read_name): Use 0, not NULL, for character.
                   3567: 
                   3568:        * alliant.md (movqi): Typos in mov opcodes.
                   3569: 
                   3570:        * tm-sparc.h, tm-spur.h (CONST_DOUBLE_OK_FOR_LETTER_P):
                   3571:        Use CONST_DOUBLE_LOW, etc. 
                   3572: 
                   3573:        * stmt.c (expand_function_end): Check value of EXIT_IGNORE_STACK,
                   3574:        not just whether defined.
                   3575: 
                   3576:        * i386.md (seq, etc.): New patterns.
                   3577:        * expr.c (do_store_flags): If result is wrong mode, 
                   3578:        ensure rest of bits are cleared.
                   3579:        Before storing low part of TARGET, emit a CLOBBER for it.
                   3580: 
                   3581:        * i386.md (load address): Use an immediate add if possible.
                   3582: 
                   3583:        * i386.md (ashlsi3): Don't generate leal; shift is faster.
                   3584: 
                   3585:        * Now struct_value_rtx is 0 to treat it as a parm.
                   3586:        * expr.c (expand_call): Implement that.
                   3587:        * integrate.c (expand_inline_function): Don't freak out.
                   3588:        * tm-apollo68.h (STRUCT_VALUE): Make it 0.
                   3589: 
                   3590:        * On 386, called function must pop the structure value address.
                   3591:        * tm-i386.h (STRUCT_VALUE): Don't change this.
                   3592:        Address is now pushed but not counted as a parm.
                   3593:        * out-i386.c (function_epilogue): Use ret $4 to pop that address.
                   3594:        * output.h: Declare the current_function_... variables.
                   3595:        * final.c: Include output.h.
                   3596: 
                   3597:        * varasm.c (make_decl_rtl): Insert missing `else', validating reg decl.
                   3598: 
                   3599: Fri Jul 14 14:12:17 1989  Richard M. Stallman  (rms at mipos3)
                   3600: 
                   3601:        * out-sparc.c, out-spur.c (output_move_double):
                   3602:        Fixed typo, addreg0 => addreg1.
                   3603: 
                   3604:        * c-decl.c (lang_decode_option): Handle -fshort-enums.
                   3605:        (finish_enum): In that case, give enum minimum number of bytes.
                   3606:        * toplev.c (main): Default flag_short_enums.
                   3607:        * toplev.c, flags.h (flag_short_enums, flag_signed_char): 
                   3608:        Define those flags here, not in c-decl.c and c-tree.h.
                   3609: 
                   3610:        * i386.md (mulqi3, umulqi3): New patterns.
                   3611: 
                   3612:        * c-convert.c (convert_to_integer): Tighter restrictions on
                   3613:        distributing truncation through max, min, and multiplication.
                   3614:        If operands were extended from unsigned, make the operation
                   3615:        unsigned.
                   3616: 
                   3617:        * cccp.c (main): Fix bug where #include <...>, when -I- was used,
                   3618:        failed to search standard dirs and/or searched some dirs
                   3619:        intended only for #include "...".
                   3620: 
                   3621:        * tm-mips.h (FUNCTION_PROLOGUE,FUNCTION_EPILOGUE):
                   3622:        Increment push_loc after store or load, not before.
                   3623: 
                   3624: Thu Jul 13 11:24:30 1989  Richard M. Stallman  (rms at mipos3)
                   3625: 
                   3626:        * emit-rtl.c (add_insn_after): Don't update last_insn
                   3627:        if insn is in a sequence.  Instead, update end of sequence.
                   3628: 
                   3629:        * stmt.c (fixup_var_refs): Update end of stacked sequence.
                   3630: 
                   3631:        * stmt.c (expand_function_start): Set result rtl before assign_parms.
                   3632: 
                   3633:        * optabs.c (emit_unop_insn): Set PREV_INSN after preliminaries.
                   3634: 
                   3635:        * stmt.c (warn_if_unused_value): Do CONVERT_EXPR like NOP_EXPR.
                   3636: 
                   3637:        * stmt.c (expand_function_start): Make sure parm_birth_insn
                   3638:        is a NOTE.
                   3639: 
                   3640:        * Makefile (clean): Delete tmp-insn-*.
                   3641: 
                   3642: Wed Jul 12 14:24:12 1989  Richard M. Stallman  (rms at mipos3)
                   3643: 
                   3644:        * i386.md (mulqi3): Restrict operand 2 to `q' reg.
                   3645: 
                   3646:        * reload1.c (choose_reload_regs): Check HARD_REGNO_MODE_OK
                   3647:        for regs to be inherited.
                   3648:        Also check HARD_REGNO_MODE_OK at end for modes of both
                   3649:        reload_in and reload_out as well as reload_mode.
                   3650: 
                   3651:        * Makefile (maketest): Update for config subdir.
                   3652: 
                   3653: Tue Jul 11 16:29:57 1989  Richard M. Stallman  (rms at mipos3)
                   3654: 
                   3655:        * integrate.c (copy_decl_tree): Copy TREE_USED of each LET_STMT.
                   3656: 
                   3657:        * make-cc1.com: Changes by Angel Li.
                   3658:        Define variables CC, CFLAGS, LDFLAGS, LIBS.
                   3659:        Use LIBR library, not LIB.  Specify a /INC in CFLAGS.
                   3660:        Use MCR to run the gen* files.  Add some comments.
                   3661:        * make-cccp.com: Similar.
                   3662:        * config-gcc.com: New file.
                   3663: 
                   3664:        * stmt.c (assign_parms): Compute parm alignment from passed type.
                   3665: 
                   3666:        * c-typeck.c (actualparameterlist): Instead of truncating
                   3667:        and then promoting for PROMOTE_PROTOTYPES, go straight to int.
                   3668: 
                   3669:        * c-parse.y (setspecs): Save old current_declspecs on a stack.
                   3670:        (decl, component_decl): Restore from that stack.
                   3671: 
                   3672: Wed Jul  5 15:01:00 1989  Richard Stallman  (tiemann at yahi)
                   3673: 
                   3674:        * tm-aix386.h, xm-aix386.h: New files.
                   3675: 
                   3676:        * loop.c (check_dbra_loop): Handle either test or compare
                   3677:        for insn two before loop end; detect and reject anything else.
                   3678: 
                   3679:        * expr.c (expand_call, expand_builtin): If alloca is done,
                   3680:        set current_function_calls_alloca.
                   3681:        * stmt.c (expand_function_end): If so, generate code to save and
                   3682:        restore the stack pointer, if not EXIT_IGNORE_STACK.
                   3683: 
                   3684:        * ns32k.md (movsi): Fixes for moving from fp or sp.
                   3685: 
                   3686:        * tm-mips.h (ASM_OUTPUT_ASCII): Start new .ascii every 256 chars.
                   3687: 
                   3688: Tue Jul  4 11:01:00 1989  Richard Stallman  (tiemann at yahi)
                   3689: 
                   3690:        * reload1.c (choose_reload_targets): Don't depend on
                   3691:        reload_spill_index when cancelling invalid inheritance.
                   3692:        Also, abort if trying to preserve death info
                   3693:        on a spill reg used in operand addressing.
                   3694: 
                   3695:        * fold-const.c (fold): Don't fold "foo"[n] here.
                   3696:        * expr.c (expand_expr): Do it here.
                   3697:        Handle wide strings correctly.
                   3698: 
                   3699:        * i386.md (movsf,movdf): Disallow mem-mem moves.
                   3700:        Enable mem-to-reg moves.
                   3701: 
                   3702:        * c-decl.c (finish_{struct,enum}): Warn if inside parm decls.
                   3703:        (in_parm_level_p, declare_parm_level): Record when inside.
                   3704:        * c-parse.y (parmlist, parmlist_or_identifiers): Call
                   3705:        declare_parm_level.
                   3706: 
                   3707:        * c-decl.c (parmlist_tags_warning): Revise warning message text.
                   3708: 
                   3709:        * tm-hp9k320.h (ASM_SPEC): Pass -V switch to assembler.
                   3710: 
                   3711:        * tm-sun386.h (ASM_START_FILE): Truncate filename to 14 chars.
                   3712: 
                   3713:        * c-typeck.c (decl_constant_value): Use only literal values.
                   3714: 
                   3715: Sat Jul  1 17:29:54 1989  Richard Stallman  (tiemann at yahi)
                   3716: 
                   3717:        * integrate.c (copy_rtx_and_substitute): Don't make nested SUBREGs.
                   3718: 
                   3719:        * stmt.c (expand_function_start): Set new global
                   3720:        current_function_returns_pointer.
                   3721: 
                   3722:        * stmt.c (get_frame_size): Return the size, not the offset.
                   3723:        * integrate.c (expand_inline_function): When setting FP_DELTA,
                   3724:        compensate for this change.
                   3725:        * tm-alliant.h,tm-mips.h,tm-sparc.h,tm-tahoe.h
                   3726:        (FUNCTION_PROLOGUE,FUNCTION_EPILOGUE): Compensate.
                   3727: 
                   3728:        * out-mips.c (function_arg): Return 0 for BLKmode.
                   3729: 
                   3730:        * tm-mips.h (FUNCTION_INCOMING_ARG): Delete; no register windows.
                   3731:        * out-mips.c (function_inarg): Delete; no longer used.
                   3732: 
                   3733:        * mips.md (addsi3): Use register_operand for operands 0,1.
                   3734:        (load address): New pattern, following movsi.
                   3735:        (fix_trunc*): Use trunc insn, not cvt.
                   3736:        (cmpfs + bgt peephole): Operands were backwards in template.
                   3737: 
                   3738:        * gcc.c (main): Record in explicit_link_files which input files go
                   3739:        straight to linker.  If linker is not run, complain about them.
                   3740:        (execute): Increment execution_count, to show we were called.
                   3741: 
                   3742:        * gcc.c (validate_all_switches): Check ASM_SPEC, CC1_SPEC, etc.,
                   3743:        so we find all switches that could be valid.
                   3744: 
                   3745:        * varasm.c (output_constructor): Position fields according to
                   3746:        DECL_OFFSET; don't try to compute alignment here.
                   3747: 
                   3748:        * tm-sparc.h (PCC_BITFIELD_TYPE_MATTERS): Define this.
                   3749: 
                   3750:        * reload1.c (emit_reload_insns): Fix stupid error in last change.
                   3751: 
                   3752:        * c-decl.c (duplicate_decls): If redeclaring builtin, give error is
                   3753:        type mismatched; otherwise warn only if -W.
                   3754: 
                   3755:        * jump.c (jump_back_p): Verify that PREV is not null.
                   3756: 
                   3757: Mon Jun 26 13:50:28 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3758: 
                   3759:        * reload1.c (choose_reload_regs): If number of reloads needing
                   3760:        spill regs exceeds n_spills, don't inherit any reloads.
                   3761: 
                   3762:        * sdbout.c (sdbout_record_type_name): Dumb error in last change.
                   3763: 
                   3764:        * reload1.c (emit_reload_insns): Extend last change: don't use
                   3765:        equiv reg if reg is in use at same stage of insn, either.
                   3766: 
                   3767: Sun Jun 25 00:00:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3768: 
                   3769:        * reload1.c (emit_reload_insns): Don't use an equivalent register
                   3770:        to reload from, if that register was used for reloading
                   3771:        earlier in this insn.
                   3772: 
                   3773:        * sdbout.c (sdbout_record_type_name): Handle a TYPE_DECL as the
                   3774:        type name.  Get rid of TYPE_TAG_NAME as separate macro.
                   3775: 
                   3776:        * optabs.c (emit_cmp_insn): Args to memcmp are addresses, not blocks.
                   3777: 
                   3778:        * reload1.c (choose_reload_regs): Typo, clearing reload_override_in.
                   3779: 
                   3780:        * tm-i386.h: Add register classes SIREG and DIREG.
                   3781:        (enum reg_class, REG_CLASS_NAMES): Define class names.
                   3782:        (REGNO_REG_CLASS, REG_CLASS_CONTENTS): Define their contents.
                   3783:        (REG_CLASS_FROM_LETTER): Define letters `S' and `D'.
                   3784: 
                   3785: Sat Jun 24 00:17:16 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3786: 
                   3787:        * c-decl.c (keep_next_level): New function.
                   3788:        (struct binding): New slot `keep' says make a LET_STMT for this level.
                   3789:        (pushlevel, poplevel): Implement that.
                   3790:        * c-parse.y (stmt exprs): Call keep_next_level.
                   3791: 
                   3792:        * sdbout.c (plain_type_1): Handle REFERENCE_TYPE, METHOD_TYPE.
                   3793:        Correct for size less than 0.
                   3794:        (plain_type): Correct for size less than 0.
                   3795: 
                   3796:        * global-alloc.c (mark_reg_set): For CLOBBERs, call mark_reg_clobber.
                   3797: 
                   3798:        * reload1.c (order_regs_for_reload): Among regs explicitly used,
                   3799:        prefer those used less often.
                   3800: 
                   3801:        * reload1.c (choose_reload_regs): If we find alternate place
                   3802:        to reload from, verify it after all reloads assigned.
                   3803:        New variable reload_override_in used for this.
                   3804: 
                   3805:        * combine.c (record_dead_and_set_regs): Look inside SIGN_EXTEND and
                   3806:        STRICT_LOW_PART for place being set.
                   3807:        (subst): When using reg_last_set to find what a register contains,
                   3808:        verify the entire register was set.
                   3809: 
                   3810:        * toplev.c (rest_of_decl_compilation): Report invalid register name.
                   3811: 
                   3812: Fri Jun 23 13:19:41 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3813: 
                   3814:        * tm-hp9k3bsd.h: New file.
                   3815:        * config.gcc: New target hp9k320-bsd.
                   3816: 
                   3817:        * gcc.c (record_temp_file): Don't add a name twice to one queue.
                   3818: 
                   3819:        * stmt.c (expand_expr_stmt): Call warn_if_unused_value.
                   3820:        (warn_if_unused_value): Code extracted from expand_expr_stmt.
                   3821:        Recurse to handle COMPOUND_EXPR.  Don't warn about COND_EXPR.
                   3822: 
                   3823:        * tm-encore.h (DBX_REGISTER_NUMBER): Override tm-ns32k.h;
                   3824:        return operand unchanged.
                   3825: 
                   3826:        * reload1.c (emit_reload_insns): Don't use recog_memoized
                   3827:        on an asm.
                   3828: 
                   3829:        * jump.c (delete_insn): Update last_insn.
                   3830:        * emit-rtl.c (set_last_insn): New function.
                   3831: 
                   3832:        * reload1.c (reload): Put a note at end of insn chain.
                   3833: 
                   3834:        * gcc.c: Put cpp output of .S file into a .s file.
                   3835: 
                   3836: Thu Jun 22 22:14:35 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3837: 
                   3838:        * optabs.c (expand_binop, expand_unop): Emit queue before library call.
                   3839:        It is done within emit_library_call, and cse screws up if there is a
                   3840:        queued insn in the middle of a cse-able sequence.
                   3841: 
                   3842: Wed Jun 21 11:57:22 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3843: 
                   3844:        * tm-mips.h (CPP_PREDEFINES): Define -Dunix.
                   3845: 
                   3846:        * reload.c (combine_reloads): Combined reload needed for entire insn.
                   3847: 
                   3848:        * c-parse.y (yylex): Braino checking for out-of-range escape seq.
                   3849: 
                   3850:        * stor-layout.c (layout_union): Handle PCC_BITFIELD_TYPE_MATTERS.
                   3851:        (layout_struct): Don't let a bitfield cross the storage unit
                   3852:        of its type, if PCC_BITFIELD_TYPE_MATTERS.
                   3853: 
                   3854: Tue Jun 20 00:03:48 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3855: 
                   3856:        * varasm.c (get_or_assign_label): Let CONSTANT_ALIGNMENT specify
                   3857:        alignment of the constant.
                   3858:        CONSTANT_ALIGNMENT is a new optional macro.
                   3859: 
                   3860:        * varasm.c (force_const_mem, get_or_assign_label):
                   3861:        Make buffer bigger.
                   3862: 
                   3863:        * toplev.c (print_target_switch_defaults): New fn called for -version.
                   3864: 
                   3865:        * toplev.c (compile_file): Detect error closing output file.
                   3866: 
                   3867:        * stor-layout.c (fixup_unsigned_type): Don't shift by 32.
                   3868: 
                   3869:        * stmt.c (emit_case_nodes): Pass UNSIGNEDP along to emit_cmp_insn.
                   3870: 
                   3871:        * stmt.c (expand_end_case): If index is narrow and cannot be
                   3872:        directly compared, widen it just once.
                   3873: 
                   3874:        * c-parse.y (yylex): Support multi-character constants.
                   3875:        Thorough rewrite of char constant parsing.
                   3876: 
                   3877:        * c-decl.c (pushdecl): Replace local extern function decl with
                   3878:        previous global decl if latter is inline, or builtin, or has
                   3879:        more arg type info.
                   3880: 
                   3881:        * hard-params.c (xmalloc): Define it, for alloca.c.
                   3882: 
                   3883:        * tm-hp9k320.h (STANDARD_STARTFILE_PREFIX): Override -D in Makefile.
                   3884: 
                   3885:        * expmed.c (store_fixed_bit_field): Avoid shift by 32.
                   3886: 
                   3887:        * stmt.c (expand_function_start): Emit a NOTE_INSN_FUNCTION_BEG.
                   3888:        * final.c (final_scan_insn): For SDB output, do the
                   3889:        sdbout_begin_function at that note.
                   3890: 
                   3891:        * reload1.c (choose_reload_regs): If a reload reg inherits
                   3892:        from a previous reload, verify safety after all reloads are assigned.
                   3893: 
                   3894:        * c-decl.c (build_enumerator): Remove no-op casts.
                   3895: 
                   3896:        * reload.c (find_reloads): If an earlyclobber operand matches
                   3897:        an input operand it is constrained to match, that's not a problem.
                   3898:        If an earlyclobber operand loses due to earlyclobber, its matching
                   3899:        input operand also loses.
                   3900: 
                   3901:        * reload1.c (choose_reload_regs): Don't use result of find_equiv_reg
                   3902:        if that reg is used for reloading in an earlier part of the insn.
                   3903: 
                   3904:        * cse.c (fold_rtx): If WIDTH is 0, don't try sign-extending ARG0, ARG1.
                   3905: 
                   3906:        * Makefile (hard-params*): Use $(OLDCC).
                   3907: 
                   3908:        * c-typeck.c (c_alignof): No warning for -pedantic.
                   3909: 
                   3910:        * c-parse.y (readescape): Don't have both error and warning
                   3911:        on one hex escape.
                   3912: 
                   3913:        * c-parse.y (yylex): Treat vertical tab as white space.
                   3914:        (skip_white_space): Likewise.
                   3915: 
                   3916:        * c-parse.y (datadef): If pedantic, warn for stray semicolon.
                   3917: 
                   3918:        * expr.c (expand_increment): Pass accurate unsignedp arg
                   3919:        to expand_binary_op.
                   3920: 
                   3921: Mon Jun 19 13:36:20 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3922: 
                   3923:        * config.gcc (news, news-gas): Use xm-m68k.h.
                   3924: 
                   3925:        * final.c (output_asm_label, output_addr_const): Make buf bigger.
                   3926: 
                   3927:        * cexp.y (main): Handle EOF on input.
                   3928:        (lookup, warning): Provide as a dummy.
                   3929:        (is_idchar, is_idstart): Declare as unsigned char.
                   3930: 
                   3931:        * cexp.y (parse_escape): Use TARGET_NEWLINE, etc., as values.
                   3932:        Support hex escapes.  Warn if octal or hex escape doesn't fit in char.
                   3933: 
                   3934:        * cexp.y (yylex): Sign-extend char constants if appropriate.
                   3935: 
                   3936:        * genemit.c: Make insn-emit.c include insn-flags.h.
                   3937: 
                   3938:        * gcc.c: Move record_temp_file past page which declares vflag.
                   3939: 
                   3940:        * integrate.c (expand_inline_function): If copying an insn with
                   3941:        a REG_EQUIV note, make a similar note.
                   3942: 
                   3943:        * Allow reload regs to be reused for parts of an insn.
                   3944:        * reload.c (find_reloads): Classify each reload for which part
                   3945:        of the insn it is needed in.
                   3946:        (find_reloads_address, etc.): Pass down the overall operand
                   3947:        that this is part of, to record it on address reloads.
                   3948:        (push_reload): Record that for each reload.
                   3949:        * reload1.c (reload): Compute maximum needs of any part of the insn.
                   3950:        (choose_reload_regs): Part of old choose_reload_targets.
                   3951:        Hairier criteria for inheriting reloads and for which ones are
                   3952:        available for the next insn to inherit.
                   3953:        (emit_reload_insns): The rest of old choose_reload_targets.
                   3954:        Emit reload insns in proper order according to where they are needed.
                   3955:        * Record `reload_reg_in_use' separately for each part of the insn.
                   3956:        (mark_reload_reg_in_use): New function.
                   3957:        (reload_reg_free_p, reload_reg_free_before_p): New functions.
                   3958:        (reload_reg_reaches_end_p): New function.
                   3959: 
                   3960:        * expr.c (expand_expr): Emit queue in X+=(Y?Z:A) optimization.
                   3961: 
                   3962:        * rtlanal.c (rtx_equal_p): Check vectors have same length.
                   3963: 
                   3964: Sun Jun 18 12:16:14 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3965: 
                   3966:        * stmt.c (expand_expr_stmt): Maybe warn if top-level operator
                   3967:        makes an unused result.
                   3968: 
                   3969:        * gcc.c (delete_temp_files, delete_failure_queue):
                   3970:        If -v, report failures in unlink.
                   3971: 
                   3972:        * Makefile (includes): New target to run fixincludes.
                   3973:        (install): Swap arms of if-statement.
                   3974: 
                   3975: Sat Jun 17 12:41:53 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3976: 
                   3977:        * stor-layout.c (layout_union): Arg to error_with_decl was missing.
                   3978: 
                   3979:        * ns32k.md (movsf): Use CONST_DOUBLE_LOW to extract from CONST_DOUBLE.
                   3980: 
                   3981:        * loop.c (consec_sets_giv): Change type of force, force2.
                   3982: 
                   3983:        * combine.c (dump*): Declare arg as FILE*.
                   3984: 
                   3985:        * Makefile (clean): Delete hard-params.
                   3986: 
                   3987:        * flow.c (life_analysis): Use a special obstack for the temporary
                   3988:        regsets.
                   3989: 
                   3990:        * m68k.md (clr pattern): On 68000, use moveq to clear data reg.
                   3991: 
                   3992:        * gvarargs.h: File varargs.h renamed.
                   3993:        The old name conflicted with <varargs.h>, now that -I. is used.
                   3994:        * tree.c, expr.c, emit-rtl.c: Change #include commands.
                   3995:        * Makefile (install): Install gvarargs.h under name varargs.h.
                   3996:        * gcc.c: Include gvarargs.h, not system's varargs.h.
                   3997: 
                   3998:        * Makefile: Use -I$(srcdir) before -I$(srcdir)/config.
                   3999:        * config/tm.h: Deleted; didn't work if config was a symlink.
                   4000: 
                   4001:        * cse.c (cse_insn): Record location of inner_dest
                   4002:        so it can be replaced properly if a new MEM rtx is made.
                   4003: 
                   4004: Fri Jun 16 14:17:20 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4005: 
                   4006:        * make-cc1.com: Compile and link rtlanal.c.
                   4007: 
                   4008:        * c-typeck.c (build_array_ref): Call fold on the array ref.
                   4009:        * fold-const.c (fold): Simplify array ref of string constant.
                   4010: 
                   4011:        * stmt.c (expand_asm_operands): Fix error message.
                   4012: 
                   4013:        * Makefile (gnulib2): Remove old members before compiling new.
                   4014:        Fix stupid errors.
                   4015:        * gnulib2.c (__cmpdi2, __ucmpdi2): Typos in names of interface unions.
                   4016: 
                   4017:        * genconfig.c (main): Don't write MAX_CLOBBERS_PER_INSN; obsolete.
                   4018:        Add 3 to MAX_RECOG_OPERANDS.
                   4019: 
                   4020:        * cse.c (fold_cc0): Extra arg specifies machine mode.
                   4021:        Callers changed.
                   4022:        (cse_insn): Record original mode of each src for this purpose.
                   4023: 
                   4024: Thu Jun 15 12:35:18 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4025: 
                   4026:        * gnulib2.c (_cmpdi2, _ucmpdi2): Moved here from gnulib.c.
                   4027:        Use long long for argument type.
                   4028: 
                   4029:        * rtlanal.c (may_trap_p): Moved here from loop.c.
                   4030:        Return 1 for division by explicit zero.
                   4031: 
                   4032:        * reload1.c (eliminate_frame_pointer, alter_frame_pointer_addresses):
                   4033:        Rerecognize insns which are changed by this.
                   4034: 
                   4035:        * i386.md (call_value): Don't return prematurely.
                   4036: 
                   4037:        * alliant.md (movqi): Handle moving Aregs to mem and vice versa.
                   4038:        (bftst -> btst): Restrict to bitpos less than 8
                   4039:        so operand may be non-offsettable.
                   4040:        (nop): New pattern.
                   4041:        (return): Was disabled; now deleted.
                   4042:        * tm-alliant.h (PRINT_OPERAND_PUNCT_VALID_P): Define it.
                   4043:        * out-alliant.c (output_btst): Same change as in out-m68k.c
                   4044: 
                   4045:        * alliant.md, out-alliant.c: Offsetable -> offsettable.
                   4046: 
                   4047:        * c-parse.y (rule for stmt_exprs): Make the LET_STMT volatile. 
                   4048: 
                   4049:        * c-decl.c (duplicate_decls): Don't save inline function data
                   4050:        from previous definition if a new *definition* is seen.
                   4051: 
                   4052:        * integrate.c (access_parm_map): Handle subregs and constants.
                   4053: 
                   4054:        * stmt.c (expand_return): Don't crash if DECL_RTL (DECL_RESULT()) is 0.
                   4055: 
                   4056:        * tm-tahoe.h (LONGJMP_RESTORE_FROM_STACK): Define it.
                   4057: 
                   4058:        * tm-mips.h (CONSTANT_P): Deleted; duplicates rtl.h.
                   4059: 
                   4060: Fri Jun  9 01:39:30 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4061: 
                   4062:        * Makefile (float.h): Avoid using $(MAKE).
                   4063: 
                   4064:        * Don't cram two things into STMT_BODY of a LET_STMT.
                   4065:        * tree.h (struct bind_stmt): New field, subblocks.
                   4066:        (STMT_SUBBLOCKS): New macro to access it.
                   4067:        * print-tree.c (walk): Print new field.
                   4068:        * tree.c (build_let_stmt): Store the old BODY arg into subblocks field.
                   4069:        * c-parse.y (stmt expr rule): Put rtl expr alone into body field.
                   4070:        * dbxout.c (dbxout_block): Recurse on subblocks, not body.
                   4071:        * sdbout.c, symout.c: Likewise.
                   4072:        * integrate.c (copy_decl_tree): Likewise.
                   4073:        * stmt.c (setjmp_protect, uninitialized_vars_warning): Likewise.
                   4074:        * expr.c (expand_expr): For LET_STMT, simply use its body.
                   4075: 
                   4076:        * machmode.def: Add sixth arg to each entry.
                   4077:        * tree.h, rtl.h, rtl.c: Add arg to DEF_MACHMODE.
                   4078:        * rtl.h (GET_WIDER_MODE): New macro; table in rtl.c.
                   4079:        * expr.c (expand_expr): Use that for widening multiply.
                   4080: 
                   4081:        * stmt.c (fixup_var_refs_1): When converting MEM to QImode for
                   4082:        bit field, adjust the address if possible to make bitpos
                   4083:        less than 8.
                   4084:        * m68k.md (bftst -> btst): Restrict to bitpos less than 8
                   4085:        so operand may be non-offsettable.
                   4086: 
                   4087:        * cccp.c (do_line): Accept and pass on 3rd arg for enter or leave file.
                   4088: 
                   4089:        * out-m68k.c (output_btst): Handle COUNT bigger than size of unit.
                   4090: 
                   4091:        * cccp.c (CHECK_DEPTH): Macro to detect instack overflow.
                   4092:        (finclude, macroexpand, expand_to_temp_buffer): Use that.
                   4093: 
                   4094:        * cccp.c (rescan): Don't check for disabled macro if traditional.
                   4095:        (macroexpand): Don't disable macro if traditional.
                   4096: 
                   4097:        * sdbout.c (sdbout_one_type): Take out last change; assembler barfs.
                   4098: 
                   4099:        * c-parse.y (maybe_attribute): Eliminate #-syntaxes.
                   4100:        Make ATTRIBUTE the name for __attribute.
                   4101: 
                   4102:        * c-parse.gperf: Add __attribute{,__} and __signed{,__}.
                   4103:        * c-parse.y: Install results of that change.
                   4104: 
                   4105:        * Fix bug in sizeof ({...}).
                   4106:        * c-decl.c (poplevel): Set TREE_USED.  Return the LET_STMT.
                   4107:        * c-parse.y (stmt-expr rule): Put the RTL_EXPR in the LET_STMT,
                   4108:        clear its TREE_USED, and use it as the result.
                   4109:        * expr.c (expand_expr): Allow LET_STMT as an expr.
                   4110:        Set its TREE_USED and expand the TREE_VALUE of its body.
                   4111:        * dbxout.c (dbxout_block): Ignore LET_STMT if TREE_USED not set.
                   4112:        * sdbout.c, symout.c: Likewise.
                   4113: 
                   4114: Thu Jun  8 00:06:36 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4115: 
                   4116:        * c-parse.y (yylex): Extend ERANGE-inhibitor for 0.0
                   4117:        to 0.0e0 as well.
                   4118: 
                   4119:        * flow.c (life_analysis): Prevent allocation of regs live at setjmp
                   4120:        on certain machines.  Controlled by LONGJMP_RESTORE_FROM_STACK.
                   4121:        Sets reg_live_length to -1.
                   4122:        * local-alloc.c (block_alloc): Be prepared for that.
                   4123:        * tm-vax.h (LONGJMP_RESTORE_FROM_STACK): Define it.
                   4124: 
                   4125:        * gnulib2.c (all interfaces): Declare args and values as long long,
                   4126:        and split them using unions.
                   4127: 
                   4128:        * loop.c (check_dbra_loop): Don't reverse loop if there are two
                   4129:        refs to varying addresses.  Consider foo[i] = foo[i-1].
                   4130:        (count_nonfixed_refs): Subroutine to count them.
                   4131: 
                   4132:        * cexp.y: Distinguish signed and unsigned.
                   4133:        An integer value is now represented by a struct.
                   4134:        All rules for arithmetic changed.
                   4135:        (yylex): Adapt to change in yylval data type.
                   4136: 
                   4137:        * limits.h (LONG_MIN): Make sure it's a signed long.
                   4138: 
                   4139:        * sdbout.c (sdbout_one_type): Output types of fields first,
                   4140:        if they are structs.  Don't go through pointers.
                   4141:        (sdbout_field_types): Subroutine for that
                   4142: 
                   4143: Wed Jun  7 13:00:44 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4144: 
                   4145:        * fixincludes: Switch to /usr/include before doing vuid_event.h.
                   4146:        Use $2 as output directory for sed.
                   4147: 
                   4148:        * tm-i386.h (FUNCTION_PROFILER): Put counter address in %edx.
                   4149:        * tm-i386v.h (LIB_SPEC): Use -L/usr/lib/libp if profiling.
                   4150: 
                   4151:        * expr.c (expand_increment): Typo testing for BImode component.
                   4152: 
                   4153:        * convex changes from csmith:
                   4154:        * tm-convex.h: use EXTRA_SECTIONS to do .bss.
                   4155:        out-convex.c: set_section, align_section are now unused.
                   4156:        * convex.md: add pattern to pick an A-reg destination for sums
                   4157:        whose source involves a dedicated A reg (frame or arg pointer)
                   4158:        * convex.md: immediate and, or, xor instructions store a 32-bit
                   4159:        result.  Fix instructions that assumed it was 64.
                   4160: 
                   4161:        * mips.md (probe): New pattern to create stack space.
                   4162: 
                   4163:        * Makefile (float.h): Ignore errors from hard-params.
                   4164:        Specify ./ to run it.
                   4165: 
                   4166: Tue Jun  6 15:45:27 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4167: 
                   4168:        * out-tahoe.c: Rename `offsetable' to `offsettable'.
                   4169: 
                   4170:        * tahoe.md (nop): New pattern.
                   4171: 
                   4172:        * i386.md (umul...): Constrain operand 1 as `0', not `a'.
                   4173:        `a' sometimes wanted two a-regs for operands 0 and 1.
                   4174: 
                   4175:        * cccp.c: Forward-declare some structs.
                   4176: 
                   4177:        * c-decl.c: Rearrange fcn fwd decls and struct decls.
                   4178: 
                   4179:        * expr.c: Move some fcn fwd decls after structs their args use.
                   4180:        * genpeep.c, genextract.c: Likewise.
                   4181: 
                   4182:        * loop.c: Forward-declare some structs.
                   4183: 
                   4184:        * stmt.c: Move decls of structs before those of static functions.
                   4185: 
                   4186:        * loop.c (strength_reduce): Delete extra arg to check_eliminate_biv.
                   4187: 
                   4188:        * integrate.c (expand_inline_function): Supply missing arg
                   4189:        to convert_to_mode.
                   4190: 
                   4191:        * gcc.c (handle_braces): Supply missing arg to do_spec_1.
                   4192: 
                   4193:        * explow.c (lookup_static_chain): Accept a context arg.
                   4194: 
                   4195:        * expmed.c (store_split_bit_field): Pass ALIGN arg
                   4196:        to extract_fixed_bit_field.
                   4197: 
                   4198:        * expr.c (expand_assignment): Convert TYPE_ALIGN to bytes.
                   4199:        (store_constructor, expand_expr): Likewise.
                   4200: 
                   4201:        * m68k.h: NO_ADDSUB_Q conditionals turn off all addq, subq insns.
                   4202:        (Fully supported only with MOTOROLA and HPUX_ASM flags.)
                   4203: 
                   4204:        * jump.c (do_cross_jump): Don't die if LABEL is 0.
                   4205: 
                   4206:        * tm-mips.h (PRINT_OPERAND_PUNCT_VALID_P): New macro.
                   4207:        * tm-iris.h: New file.  Unsplit lines accidentally split.
                   4208: 
                   4209: Mon Jun  5 15:39:30 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4210: 
                   4211:        * integrate.c (output_inline_function): Call init_function_start,
                   4212:        not expand_function_start.
                   4213:        * emit-rtl.c (restore_reg_data): No need to init reg_rtx_no.
                   4214: 
                   4215:        * stmt.c (init_function_start): Set current_function_returns_struct.
                   4216: 
                   4217:        * rtlanal.c (reg_set_between_p): New fn analogous to reg_used_between_p
                   4218:        * loop.c (strength_reduce): Reject biv initial value which is altered
                   4219:        subsequently before actual loop start.
                   4220: 
                   4221:        * rtlanal.c: New file split out from rtl.c.
                   4222:        Has things not used in the gen files.
                   4223: 
                   4224:        * loop.c (strength_reduce): Reject biv initial value in a hard reg
                   4225:        clobbered by an intervening function call.
                   4226: 
                   4227:        * tree.c (get_identifier): New flag needed to enable id-clash warnings.
                   4228:        (start_identifier_warnings): Set that flag.
                   4229:        * c-decl.c (init_decl_processing): Call that, after making built-ins.
                   4230: 
                   4231: Sat Jun  3 14:41:34 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4232: 
                   4233:        * final.c (final_scan_insn): No basic block profiling at jump tables.
                   4234: 
                   4235:        * stmt.c (expand_decl): Probe the stack to make pages exist.
                   4236:        * expr.c (expand_builtin): Likewise, for alloca.
                   4237: 
                   4238:        * move-if-change: Specify /bin/sh.
                   4239: 
                   4240:        * tm-ns32k.h (INDIRECTABLE_2_ADDRESS_P): Don't accept PLUS
                   4241:        with constant operands but not inside CONST.
                   4242: 
                   4243:        * integrate.c (output_inline_function, save_for_inline):
                   4244:        Save stack_slot_list, and restore it for actual output.
                   4245:        * emit-rtl.c (gen_inline_header_rtx): New arg for this.
                   4246: 
                   4247:        * emit-rtl.c (restore_reg_data): Initialize reg_rtx_no.
                   4248:        (restore_reg_data_1): Handle reg_rtx_no jumping past
                   4249:        reg_pointer_flag_length.
                   4250: 
                   4251:        * reload1.c (alter_reg): Do nothing if regno_reg_rtx has 0.
                   4252: 
                   4253:        * integrate.c (copy_rtx_and_substitute): Typos for stack parm
                   4254:        addresses in PLUS case.
                   4255: 
                   4256:        * genoutput.c (gen_insn, gen_peephole): Make output_n fns static.
                   4257:        (output_prologue): Use new macro DEFAULT_MACHINE_INFO if defined.
                   4258: 
                   4259:        * tree.h (enum machine_mode): Define MAX_MACHINE_MODE as in rtl.h.
                   4260: 
                   4261: Fri Jun  2 15:40:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4262: 
                   4263:        * cccp.c (do_include): A file included via a system header file
                   4264:        counts as a system header file for -M.
                   4265: 
                   4266:        * gnulib2.c: Support boolean ops and shifts.
                   4267: 
                   4268:        * loop.c (emit_iv_inc): Use emit_iv_init_code.
                   4269: 
                   4270:        * rtl.h (CONST0_RTX): Don't try to cast abort.
                   4271: 
                   4272:        * tm-news.h (PRINT_OPERAND_ADDRESS): Fix typo `reg_name'.
                   4273:        Delete two garbage lines.
                   4274: 
                   4275:        * loop.c (eliminate_biv): Use emit_iv_init_code to compute comparison
                   4276:        value.  If value is constant, recognize the insn, and if that fails,
                   4277:        put the value in a register.  
                   4278: 
                   4279: Thu Jun  1 16:56:39 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4280: 
                   4281:        * print-tree.c (dump): Don't die if rtx components are null.
                   4282: 
                   4283:        * expmed.c (expand_mult_add): New fn to do A * X + B.
                   4284:        (make_tree): New subroutine.
                   4285:        * loop.c (emit_iv_init_code): Use that.  Much simpler now.
                   4286: 
                   4287: Tue May 30 17:20:40 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4288: 
                   4289:        * fold-const.c (fold): Use TREE_SET_CODE to store in tree codes.
                   4290: 
                   4291:        * tree.h (struct tree_common): Make `code' an unsigned int.
                   4292:        (TREE_CODE, TREE_SET_CODE): Put in casts.
                   4293: 
                   4294:        * optabs.c (emit_cmp_insn): Supply all the args in recursive calls.
                   4295: 
                   4296:        * toplev.c (report_error_function): Fix typo; METHOD_TYPE missing.
                   4297: 
                   4298:        * fixincludes: Add code to make internal non-directory links.
                   4299: 
                   4300: Mon May 29 21:36:28 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4301: 
                   4302:        * gcc.c (find_exec_file): Try both with and without machine_suffix.
                   4303:        (find_file): Use machine_suffix here too.
                   4304: 
                   4305: Sat May 27 00:02:26 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4306: 
                   4307:        * reload.c (decompose): OFFSET wasn't initialized.
                   4308: 
                   4309:        * cse.c (cse_main): Assign monotonic cuids.
                   4310:        (make_regs_eqv, CHEAPER): Use cuids, not uids.
                   4311:        (cse_end_of_basic_block): Return a cuid, not a uid.
                   4312: 
                   4313:        * expr.c (expand_builtin): For BUILTIN_SAVEREGS, range of regs
                   4314:        moved included one extra previous insn.
                   4315: 
                   4316:        * emit-rtl.c (emit_line_note): Don't check -g here.
                   4317:        (emit_note): For line number when no -g, increment cur_insn_uid anyway.
                   4318:        * stmt.c (expand_start_case): Always output a NOTE_INSN_DELETED.
                   4319: 
                   4320:        * loop.c (loop_optimize): Don't count line-number NOTEs for luids.
                   4321:        Prevents -g from affecting optimization decisions.
                   4322: 
                   4323: Fri May 26 17:31:15 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4324: 
                   4325:        * local-alloc.c (block_alloc): Don't count notes in insn_number.
                   4326:        Prevents -g from affecting order of allocation.
                   4327: 
                   4328: Thu May 25 14:12:19 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4329: 
                   4330:        * local-alloc.c (block_alloc): Clear full length of regs_live_at.
                   4331: 
                   4332:        * ns32k.md (cmpsi): Make this the first cmp pattern.
                   4333: 
                   4334:        * jump.c (do_cross_jump): Skip NOTEs while checking for existing label.
                   4335: 
                   4336:        * cse.c (cse_insn): When no-oping a jump, decrement use count of label.
                   4337:        (cse_basic_block): If label use count is 0, go past it.
                   4338: 
                   4339:        * integrate.c (access_parm_map): New fn, broken out of
                   4340:        copy_rtx_and_substitute, handles case of mem ref to stack arg.
                   4341:        (copy_rtx_and_substitute): Call it.
                   4342:        Also use it for address of a stack arg.
                   4343: 
                   4344:        * gen*.c (fatal): Declare 1st arg as string.
                   4345: 
                   4346: Wed May 24 00:13:36 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4347: 
                   4348:        * optabs.c (init_optabs): Handle movdi and movdf insns.
                   4349: 
                   4350:        * final.c (end_final): Realign locn ctr after outputting string.
                   4351: 
                   4352:        * tm-sparc.h (LINK_SPEC): Link bb_link.o before standard lib.
                   4353: 
                   4354:        * tm-sun386i.h (LINK_SPEC): Accept and ignore -sun386.
                   4355: 
                   4356:        * gcc.c (find_exec_file): Use machine_suffix.
                   4357:        (process_command): Set that for -b option.
                   4358: 
                   4359:        * integrate.c (function_cannot_inline_p): No size limit
                   4360:        for functions declared inline.
                   4361: 
                   4362:        * loop.c (skip_consec_insns): New fn, skip several insns or libcalls.
                   4363:        (force_movables): New fn, part of scan_loop broken out.
                   4364:        (ignore_some_movables): New fn, ignore a movable whose insn
                   4365:        is within another movable's libcall.
                   4366:        (scan_loop): Call those three.
                   4367:        Don't handle m->consec for zero-extend movables, since always 0.
                   4368: 
                   4369: Tue May 23 12:58:24 1989  Joe Weening  (weening at gang-of-four.stanford.edu)
                   4370: 
                   4371:        * config/alliant.md:
                   4372:        Removed operand classes 'x', 'y', 'G', 'H'.
                   4373:        Added "%." to many opcodes to simplify comparison with m68k.md.
                   4374:        Changed TARGET_68881 to TARGET_CE.
                   4375:        Changed floating-point insns to better describe the Alliant CE.
                   4376:        Most args to floating-point insns are now nonimmediate_operand.
                   4377:        Removed special insns for pushing doublewords onto stack.
                   4378:        Added non-CE versions of movsf and movdf to avoid using FP
                   4379:        registers in this case.
                   4380:        (float*i*f2): Don't allow immediate ops.
                   4381:        (sne): Fix typo, fsne => fsneq.
                   4382:        (call, call_value): Changed to always pop args from stack
                   4383:        upon return; this gives better code than before and conforms
                   4384:        to Alliant calling standard.
                   4385:        Incorporated some recent changes to m68k.md.
                   4386: 
                   4387:        * config/out-alliant.c:
                   4388:        (regno_reg_class): Removed FPA reg classes.
                   4389:        (output_move_const_double): Function not needed, removed.
                   4390: 
                   4391:        * config/tm-alliant.h:
                   4392:        Removed FPA registers and reg classes.
                   4393:        Target flags: changed TARGET_68881 to TARGET_CE, removed
                   4394:        TARGET_RTD, TARGET_REGPARM, TARGET_FPA.
                   4395:        Removed TARGET_CE test in several places since we need to
                   4396:        use FP regs even for non-CE programs.
                   4397:        (TARGET_VERSION, CPP_SPEC): Define for Alliant.
                   4398:        (CONDITIONAL_REGISTER_USAGE): Removed, not needed.
                   4399:        (FRAME_POINTER_REQUIRED): Defined.
                   4400:        (RETURN_POPS_ARGS): Defined.
                   4401:        (FUNCTION_VALUE, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P):
                   4402:        Use fp0 to return floating-point values.
                   4403:        (FUNCTION_ARG): Remove TARGET_REGPARM code.
                   4404:        (FUNCTION_ARG_PARTIAL_NREGS): Always 0.
                   4405:        (FUNCTION_PROFILER): Define for Alliant.
                   4406:        (FUNCTION_EPILOGUE): Remove use of rtd instruction.
                   4407:        Renamed CC_IN_68881 to CC_IN_FP.
                   4408:        (NOTICE_UPDATE_CC): Incorporate changes that were made
                   4409:        in tm-m68k.h.
                   4410: 
                   4411:        * config/xm-alliant.h (LINK_SPEC): Pass -X to linker.
                   4412: 
                   4413: Tue May 23 12:58:24 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4414: 
                   4415:        * sdbout.c: Don't include c-tree.h.
                   4416: 
                   4417:        * tree.c (build_index_type): Use sizetype for min and max values.
                   4418:        Convert maxval rather than clobbering it.
                   4419: 
                   4420:        * tm-hp9k320.h: Finish unterminated comment.
                   4421: 
                   4422:        * sdbout.c (sdbout_parms): Use gen_fake_label for anonymous parm.
                   4423: 
                   4424: Sun May 21 12:58:06 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4425: 
                   4426:        * stmt.c (aggregate_value_p): New fn says whether expression is a type
                   4427:        that functions cannot return as a scalar.
                   4428:        (assign_parms, expand_function_start): Use that.
                   4429:        * expr.c (expand_call): Likewise.
                   4430: 
                   4431:        * gcc.c (delete_failure_queue): New subroutine.
                   4432:        (delete_temp_files): No longer delete the failure queue.
                   4433:        (main): Delete failure queue after each failing compilation.
                   4434: 
                   4435: Sat May 20 13:16:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4436: 
                   4437:        * varasm.c (force_const_mem): New optional macro SELECT_RTX_SECTION.
                   4438: 
                   4439:        * mips.md: Change %u0 to %:.
                   4440:        (movsi): Add constraint alternative accepting address arg.
                   4441: 
                   4442:        * fold-const.c (mul_double): Special case for 2nd arg 2, 4, 8.
                   4443:        (combine): Special case shortcuts for plus, minus, mult, div.
                   4444: 
                   4445:        * stmt.c (expand_function_start): Simplify hairy statement for 3B1.
                   4446:        * expr.c (expand_call): Likewise.
                   4447: 
                   4448:        * math-68881.h: New file.
                   4449: 
                   4450:        * m68k.md (movqi): Handle moving aregs to mem and vice versa.
                   4451: 
                   4452:        * dbxout.c (dbxout_type): Don't test use_gdb_dbx_extensions
                   4453:        in cases that occur in C.
                   4454: 
                   4455:        * stmt.c (expand_function_{start,end}): Make DECL_RESULT's rtl 0
                   4456:        when function returns no value.
                   4457: 
                   4458:        * tree.c (build_decl): Initialize DECL_PRINT_NAME, DECL_ASSEMBLER_NAME.
                   4459: 
                   4460:        * c-decl.c (store_parm_decls): Call init_function_start.
                   4461: 
                   4462: Thu May 18 00:41:37 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4463: 
                   4464:        * stmt.c (expand_null_return_1): New arg USE_GOTO says jump to
                   4465:        return_label even if could otherwise use a return insn.
                   4466:        Make a return_label if we need one and don't have one already.
                   4467:        If have parm cleanups, always jump to cleanup_label.
                   4468:        (expand_null_return): Pass 1 for USE_GOTO if cleanups pending.
                   4469:        (expand_return): Set LAST_INSN if have local cleanups or parm cleanups.
                   4470:        Use that if jumping to tail-recursion label.
                   4471:        Optimization for returning a comparison is safe for local cleanups
                   4472:        but don't do it if there are parm cleanups.
                   4473:        Calling expand_null_return_1, pass 1 for USE_GOTO if local cleanups.
                   4474:        (this_contour_has_cleanups_p): New function.
                   4475: 
                   4476:        * stmt.c (init_function_start): New function, beginning of
                   4477:        expand_function_start broken out.
                   4478:        Use DECL_PRINT_NAME to get function's name.
                   4479:        (expand_function_start): Now two args, function and PARMS_HAVE_CLEANUPS
                   4480:        Compute RETURN_LABEL sooner; make one if parm cleanups.
                   4481:        If parms have cleanups, put scalar return value in pseudo-reg.
                   4482:        Don't mark that pseudo with REG_FUNCTION_VALUE_P.
                   4483:        (expand_function_end): Simplify decisions about output of return_label
                   4484:        and return insn.
                   4485:        If DECL_RESULT is pseudo-reg, copy it to real return reg.
                   4486: 
                   4487:        * stmt.c (expand_function_end): Handle ordinary struct values
                   4488:        like pcc, but only if unoptimized.
                   4489:        (expand_function_start): Make a return_label for ordinary struct value.
                   4490: 
                   4491:        * stor-layout.c (layout_type): Handle METHOD_TYPE like FUNCTION_TYPE.
                   4492:        (layout_decl): Allow TYPE_DECL.
                   4493: 
                   4494:        * stor-layout.c (layout_basetypes): Code for basetypes broken
                   4495:        out of layout_record.  Sets the type size tentatively.
                   4496:        (layout_record): Start with that tentative size.
                   4497:        Also, don't do anything with CONST_DECL members.
                   4498: 
                   4499:        * stor-layout.c (layout_union): Simpler error report for static memb.
                   4500: 
                   4501:        * reload1.c (eliminate_frame_pointer): Reduce PUSH_ROUNDING
                   4502:        conditional to apply only to push instructions.
                   4503: 
                   4504:        * expr.c (expand_call): Fix stupid errors handling MAX_PARM_BOUNDARY.
                   4505:        * stmt.c (assign_parms): Likewise.
                   4506: 
                   4507:        * toplev.c (announce_function, report_error_function):
                   4508:        (error_with_decl, warning_with_decl): Use DECL_PRINT_NAME.
                   4509: 
                   4510:        * toplev.c (compile_file): Subtract integration_time from parse_time.
                   4511: 
                   4512:        * toplev.c (compile_file): Don't output read-only static variables
                   4513:        at end of compilation if address was not used.
                   4514: 
                   4515:        * toplev.c (rest_of_compilation): Handle flag_syntax_only.
                   4516: 
                   4517:        * toplev.c (main): Handle -g0 and -G0 options.
                   4518:        For -g and -G, set use_gdb_dbx_extensions.
                   4519: 
                   4520:        * toplev.c (main): Set `progname'.
                   4521:        (pfatal_with_name, fatal_io_error, {error,warning}_with_file_and_line):
                   4522:        (sorry): Print value of `progname', not "cc1".
                   4523: 
                   4524:        * tree.def: Delete FRIEND_DECL.  Add PUSH_EXPR and POP_EXPR.
                   4525: 
                   4526:        * tree.c (simple_cst_equal): Handle INDIRECT_REF.
                   4527: 
                   4528:        * tree.c (lvalue_p): Handle METHOD_TYPE.  Handle NEW_EXPR.
                   4529: 
                   4530:        * tree.c (copy_list): New function.
                   4531: 
                   4532:        * tree.h (struct tree_decl): New fields print_name and assembler_name.
                   4533:        (DECL_PRINT_NAME, DECL_ASSEMBLER_NAME): New accessors.
                   4534: 
                   4535:        * c-decl.c (LONG_DOUBLE_TYPE_SIZE): New compilation parameter.
                   4536: 
                   4537: Wed May 17 22:07:17 1989  Randall Smith  (randy at apple-gunkies.ai.mit.edu)
                   4538: 
                   4539:        * dbranch.c (emit_delay_sequence): Reset insn code to -1 when
                   4540:        turning insn into a sequence so that it won't think that it matches
                   4541:        something in the md file.
                   4542: 
                   4543:        * dbranch.c (insn_eligible_p): Call refers_to_regno_p with a
                   4544:        non-zero range.
                   4545: 
                   4546:        * dbranch.c (pnote): Modified to make sure instruction clobbered
                   4547:        register is a set, rather than, say, a clobber.
                   4548: 
                   4549: Wed May 17 14:01:20 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4550: 
                   4551:        * sdbout.c (sdbout_parms): Handle parm with no name.
                   4552: 
                   4553:        * loop.c (combine_movables): Test for overlap of zero-extend regs
                   4554:        was screwed up.
                   4555: 
                   4556:        * c-typeck.c (c_sizeof{,_nowarn}): Convert from bytes to chars,
                   4557:        since c defines sizeof (char) as 1.
                   4558:        (pointer_int_sum, pointer_diff): Use c_sizeof{,_nowarn}. 
                   4559: 
                   4560: Tue May 16 16:27:32 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4561: 
                   4562:        * reload1.c (choose_reload_targets): Don't reuse regs
                   4563:        mentioned in reload_reg_rtx.
                   4564: 
                   4565:        * tm-tahoe.h, tahoe.md, out-tahoe.c, xm-tahoe.h: New files.
                   4566: 
                   4567: Mon May 15 16:25:12 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4568: 
                   4569:        * fixincludes: Exit with explicit status 0 at end.
                   4570:        cd to /usr/include before cd to subtree root in case of relative link.
                   4571:        Create dir $LIB earlier.
                   4572:        When checking for a link, treat .. like an absolute target.
                   4573: 
                   4574:        * symout.c (symout_block_symbols): Give every local decl a typespec.
                   4575:        * cexp.y (parse_number):
                   4576:        * flow.c (life_analysis, dump_flow_info):
                   4577: 
                   4578:        * loop.c (consec_sets_invariant_p): Logic error accepted consec sets
                   4579:        of which only one was invariant.
                   4580: 
                   4581:        * expr.c (expand_expr): Use no subtargets inside loops.
                   4582:        * stmt.c (inside_loop): New function.
                   4583: 
                   4584: Sun May 14 00:11:07 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4585: 
                   4586:        * tree.h: Declare long long types.
                   4587: 
                   4588:        * c-parse.y (combine_strings): Make string contents saveable.
                   4589: 
                   4590:        * tree.c (savealloc): New function.
                   4591: 
                   4592:        * m68k.md (movdi): % missing in fmove%.d.
                   4593: 
                   4594:        * c-parse.y (yylex): Detect overflow past 64-bits.
                   4595:        Detect specially numbers not fitting in signed long long.
                   4596: 
                   4597: Sat May 13 13:16:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4598: 
                   4599:        * reload1.c (alter_frame_pointer_addresses): Preserve volatility.
                   4600: 
                   4601:        * varasm.c (output_constructor): Die if BITS_PER_UNIT is too big
                   4602:        for this function to work.
                   4603: 
                   4604:        * genpeep.c (match_rtx): For match_operator, match the operands, too.
                   4605: 
                   4606:        * varasm.c (output_constant): Use ASM_OUTPUT_DOUBLE_INT for DImode.
                   4607: 
                   4608:        * stor-layout.c (make_signed_type, make_unsigned_type):
                   4609:        (fixup_unsigned_type): Use HOST_BITS_PER_INT.
                   4610: 
                   4611:        * stor-layout.c (layout_type): Use TFmode if appro.
                   4612: 
                   4613:        * optabs.c (emit_cmp_insn): Use mode sizes to check cmpstrqi, cmpstrhi.
                   4614: 
                   4615:        * c-typeck.c (get_floating_type): Compare MODE against modes of types.
                   4616:        (signed_type, unsigned_type, signed_or_unsigned_type, type_for_size):
                   4617:        Handle long long types.
                   4618:        (digest_init): Don't assume width of `char' is BITS_PER_UNIT.
                   4619: 
                   4620:        * c-parse.y (yylex): For truncating chars, use width of `char' type.
                   4621:        Allow `ll' in int constants and make long long.
                   4622:        Also make long long if constant won't fit in an int.
                   4623: 
                   4624:        * c-decl.c (SHORT_TYPE_SIZE): Round up when dividing.
                   4625: 
                   4626: Fri May 12 22:36:21 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4627: 
                   4628:        * real.h: Allow multiple inclusion.
                   4629: 
                   4630:        * tm-sun386i.h (DBX_REGISTER_NUMBER): Bizarre renumbering.
                   4631: 
                   4632: Thu May 11 00:36:21 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4633: 
                   4634:        * fixincludes: Fix non-ansi declaration of sprintf in X11/Xmu.h
                   4635: 
                   4636:        * c-parse.y (stmt from expr): Do default conversion if useful
                   4637:        for sake of ({...}).
                   4638: 
                   4639:        * sparc.md (andcc recognizer): Operand missing in subreg.
                   4640: 
                   4641: Wed May 10 17:20:38 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4642: 
                   4643:        * rtl.c (read_name): Error if name is missing.
                   4644:        (dump_and_abort): Don't print char args if -1.
                   4645: 
                   4646:        * i386.md (umulqihi3): Operand numbers were missing.
                   4647: 
                   4648:        * reload1.c (choose_reload_targets): Allow spill reg in find_equiv_reg
                   4649:        if it's free and correct class. 
                   4650: 
                   4651:        * cse.c (canon_hash): Handle empty strings.
                   4652: 
                   4653:        * cccp.c (macroexpand): Newline newline treated like real white space
                   4654:        when stringifying.
                   4655: 
                   4656:        * Rename *offsetable* to *offsettable*.
                   4657: 
                   4658: Tue May  9 22:54:58 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4659: 
                   4660:        * c-decl.c (finish_type): Layout any variants of the type.
                   4661: 
                   4662: Tue May  9 12:30:28 1989  Randall Smith  (randy at apple-gunkies.ai.mit.edu)
                   4663: 
                   4664:        * final.c (final_scan_insn, final): Added an argument to
                   4665:        final_scan_insn to disallow peephole processing (to turn it off
                   4666:        during delayed branch scheduling).
                   4667: 
                   4668:        * final.c (final_scan_insn): Made insn not matching any MD rtl a
                   4669:        criteria for delayed branch case.  Moved delayed branch case to just
                   4670:        before real insn recognition to reduce the number of insns on which
                   4671:        recog_memoized is called.
                   4672: 
                   4673: Mon May  8 15:02:42 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4674: 
                   4675:        * fixincludes (LIB): Allow overriding.
                   4676: 
                   4677:        * cccp.c: Don't search /usr/include/CC by default.
                   4678: 
                   4679: Mon May  8 13:09:21 1989  Randall Smith  (randy at apple-gunkies.ai.mit.edu)
                   4680: 
                   4681:        * print-tree.c (dump): Fixed typo; IDENTIFIER ==> IDENTIFIER_NODE.
                   4682: 
                   4683: Sun May  7 12:44:53 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4684: 
                   4685:        * print-tree.c (dump): TYPE_NAME may be IDENTIFIER or TYPE_DECL.
                   4686: 
                   4687: Sat May  6 00:13:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4688: 
                   4689:        * tree.def: Define EXACT_DIV_EXPR, for when remainder known as 0.
                   4690:        * fold-const.c (combine, fold, div_and_round_double): Handle new code.
                   4691:        * expr.c (expand_expr): Likewise.
                   4692:        * c-typeck.c (pointer_diff): Use EXACT_DIV_EXPR.
                   4693: 
                   4694:        * integrate.c (expand_inline_function): Use size of passed type
                   4695:        for allocating stack slot with that type.
                   4696: 
                   4697:        * c-parse.y (maybe_attribute, attribute*): New syntax for Apollos.
                   4698:        These tokens currently not generated.
                   4699: 
                   4700: Fri May  5 18:43:01 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4701: 
                   4702:        * toplev.c [USG]: Undefine FLOAT for sake of sys/param.h on hpux.
                   4703: 
                   4704:        * optabs.c (expand_binop): If backtracking, don't delete insns made
                   4705:        for -fforce-mem.
                   4706: 
                   4707: Thu May  4 01:57:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4708: 
                   4709:        * reload.c (find_reloads): Don't compare an earlyclobber operand
                   4710:        with itself.
                   4711: 
                   4712:        * reload.c (immune_p): Constants and stack slots don't overlap.
                   4713: 
                   4714:        * Put no-ops in front of loops and labels,
                   4715:        to prevent confusion in the debugger.
                   4716:        * c-parse.y (loops and labels): Call emit_nop.
                   4717:        * stmt.c (emit_nop): New function--sometimes emit a no-op.
                   4718:        * *.md (nop): New insn.
                   4719: 
                   4720:        * expr.c (expand_call): Typo in arg to FIRST_PARM_CALLER_OFFSET.
                   4721: 
                   4722: Wed May  3 01:34:58 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4723: 
                   4724:        * loop.c (scan_loop): Scanning around end of loop
                   4725:        should not set maybe_never.
                   4726: 
                   4727:        * Rename SELECT_VARIABLE_SECTION to SELECT_SECTION.
                   4728:        * varasm.c (get_or_assign_label): Use SELECT_SECTION if defined.
                   4729:        * varasm.c: Use EXTRA_SECTION_FUNCTIONS if defined (new macro).
                   4730: 
                   4731:        * mips.md: Change %u to %u0 to avoid error check.
                   4732: 
                   4733:        * tm-mips.h (TARGET_VERSNUM): Inc. to 1 08.
                   4734:        (TARGET_VERSION): Change strings.
                   4735:        (AL_DEBUG): Don't define it.
                   4736:        (HARD_REGNO_MODE_OK): Add some casts to int.
                   4737:        (STACK_ARGS_ADJUST): Name was misspelled.
                   4738:        (PRINT_OPERAND_ADDRESS): Just abort for MEM, POST_INC, etc.
                   4739:        (EXTRA_SECTIONS, SELECT_VARIABLE_SECTION, SELECTORS_EXTRA_SECTIONS,
                   4740:        SELECT_VARIABLE_CONST_SECTION): New macros.
                   4741:        (ASM_FILE_END): Change function name.
                   4742:        * out-mips.c (function_arg_advance): Delete debugging printfs.
                   4743:        (function_inarg, function_arg): Likewise.
                   4744:        (compare_collect, compare_restore): Add some.
                   4745: 
                   4746:        * reload1.c (reload): Fix handling of caller_save_needed.
                   4747: 
                   4748:        * stmt.c (expand_function_start): Clear caller_save_needed.
                   4749: 
                   4750:        * stmt.c (emit_case_nodes): Some compiler has trouble with calling
                   4751:        a function pointer.
                   4752:        * gnulib.c: likewise.
                   4753: 
                   4754: Tue May  2 15:32:25 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4755: 
                   4756:        * loop.c (combine_movables): For zero extend,
                   4757:        do each from-mode separately.
                   4758: 
                   4759: Mon May  1 00:18:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4760: 
                   4761:        * tm-apollo68.h: New file.
                   4762: 
                   4763:        * c-parse.y (is_reserved_word, hash): Add keywords `__asm__', etc.
                   4764:        * c-parse.gperf: Corresponding changes.
                   4765: 
                   4766:        * c-parse.y (check_newline): Set main_input_filename before
                   4767:        considering optional arguments.
                   4768: 
                   4769:        * final.c (final_scan_function): Return next insn to process.
                   4770:        Usually that's the following insn; occasionally, previous compare.
                   4771: 
                   4772:        * c-decl.c (DOUBLE_TYPE_SIZE): Wrong value.
                   4773: 
                   4774:        * reload.c (decompose): Failed to return value.
                   4775: 
                   4776:        * Support local specified-register variables.
                   4777:        * varasm.c (decode_reg_name): New function, cvt asmspec to regnum.
                   4778:        (make_decl_rtl): Call that.
                   4779:        * toplev.c (rest_of_decl_compilation): Handle local specified-register
                   4780:        declarations.
                   4781: 
                   4782:        * i386.md (tstqi, trunc*qi): Constrain to `q' regs.
                   4783: 
                   4784:        * loop.c (scan_loop, move_movables): ->global for zero-extend register
                   4785:        now means register is used outside range from where it is set
                   4786:        to the following label.  Non-global zero-extend regs
                   4787:        may be entirely cleared.
                   4788: 
                   4789:        * loop.c (combine_movables): Loop that combines matching movables
                   4790:        broken out from scan_loop.
                   4791:        Now also combine non-global zero-extend registers with each other
                   4792:        if their lifespans don't overlap.
                   4793: 
                   4794:        * c-typeck.c (build_unary_op, ADDR_EXPR of a COMPONENT_REF):
                   4795:        Always convert to desired result type.
                   4796: 
                   4797: Sun Apr 30 12:58:58 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4798: 
                   4799:        * c-decl.c (init_decl_processing): New macros parameterize int types.
                   4800:        CHAR_TYPE_SIZE, SHORT_TYPE_SIZE, LONG_TYPE_SIZE, LONG_LONG_TYPE_SIZE,
                   4801:        FLOAT_TYPE_SIZE, DOUBLE_TYPE_SIZE.
                   4802: 
                   4803:        * fixincludes: Use sed instead of ex.  No problem with split lines.
                   4804: 
                   4805:        * print-tree.c (dump): Print type's name, if any.
                   4806: 
                   4807:        * c-parse.y: Use __inline, not plain inline.
                   4808: 
                   4809:        * toplev.c: New option -fdelayed-branch.
                   4810:        (compile_file): Open and close dbranch dump file.
                   4811:        Collect and print dbranch time.
                   4812:        (rest_of_compilation): Optionally do dbranch scheduling, 
                   4813:        only if HAVE_DELAYED_BRANCH.
                   4814:        (main): Handle -dd.
                   4815: 
                   4816:        * rtl.c (copy_rtx): Handle null pointers as code `e'.
                   4817: 
                   4818:        * final.c (dbr_sequence_length): New function.
                   4819:        (final_scan_insn): Most of `final' broken out.
                   4820:        Add support for SEQUENCE insns.
                   4821:        last_ignored_compare and new_block now top-level static.
                   4822: 
                   4823:        * c-parse.y (MAX_WORD_LENGTH): Long enough for __volatile.
                   4824: 
                   4825: Sat Apr 29 13:03:20 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4826: 
                   4827:        * c-parse.y (asm statements): Output line numbers.
                   4828: 
                   4829:        * loop.c (emit_iv_init_code, emit_iv_inc, eliminate_biv): Copy
                   4830:        additive term rtx's to prevent sharing between insns.
                   4831: 
                   4832:        * c-parse.y (check_newline): Increment input_file_stack_tick.
                   4833:        * toplev.c (report_error_function): Describe input stack only if
                   4834:        changed.
                   4835: 
                   4836:        * c-decl.c (finish_struct): Reject zero width for named field.
                   4837: 
                   4838:        * tm-sun3.h (CC1_SPEC): Prevent error on `-sun3'.
                   4839:        * tm-sparc.h (CC1_SPEC): Prevent error on `-sun4'.
                   4840: 
                   4841:        * Makefile (cleanconfig): cleanlinks renamed; also delete gnulib.
                   4842:        (gnulib): Delete stamp-gnulib2 since gnulib2 should be redone after.
                   4843: 
                   4844: Fri Apr 28 00:38:32 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4845: 
                   4846:        * config.gcc (genix): Correct xm file name.
                   4847: 
                   4848:        * tm-genix.h: Undefine ASM_SPEC inherited from tm-encore.h.
                   4849: 
                   4850:        * Makefile: Make float.h using hard-params.
                   4851:        (clean): Delete float.h.
                   4852: 
                   4853:        * hard-params.c: New program.
                   4854: 
                   4855:        * varasm.c (assemble_variable): Use SELECT_VARIABLE_SECTION if defined.
                   4856:        (in_section): Use EXTRA_SECTIONS if defined.
                   4857: 
                   4858:        * toplev.c (compile_file): Call ASM_FILE_END if defined.
                   4859: 
                   4860:        * gcc.c (SWITCH_TAKES_ARG, WORD_SWITCH_TAKES_ARG): Let config override.
                   4861: 
                   4862:        * loop.c (emit_iv_init_code): Force A to a reg if it isn't.
                   4863: 
                   4864: Thu Apr 27 12:51:14 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4865: 
                   4866:        * tm-mips.h (ASM_START_FILES): Don't call print_options.
                   4867:        Don't call the funny abort-functions.
                   4868:        * out-mips.c: Delete funny debugging functions and aborts.
                   4869:        (print_options): #if 0.
                   4870:        (compare_restore): Test for COMPARE, not MINUS.
                   4871:        (mips_section_get, mips_output_external, mips_asm_final): New fns.
                   4872: 
                   4873:        * input.h: New file with *input_filename, lineno and input_file_stack.
                   4874:        Included in toplev.c and c-parse.y.
                   4875:        * c-decl.c (finish_function): LINENO is now arg.
                   4876:        * c-parse.y: Calls changed.
                   4877: 
                   4878:        * c-parse.y (check_newline): Handle `1' or `2' from cpp
                   4879:        by pushing or popping input_file_stack.
                   4880:        * toplev.c (compile_file): Push main input file on input_file_stack.
                   4881:        (report_error_function): If in include file, print the chain
                   4882:        of include-locations.
                   4883: 
                   4884:        * cccp.c (output_line_command): New arg says whether entering or
                   4885:        leaving a file.  Output `1' or `2' on #-line if so.  Callers changed.
                   4886: 
                   4887:        * gnulib2.c: Little-endian fixes from [email protected].
                   4888: 
                   4889:        * fixincludes: Wrong quoting in `echo' command.
                   4890: 
                   4891:        * tm-mips.h (REG_P): Duplicate defn deleted.
                   4892:        (PRINT_OPERAND): `\' was missing.
                   4893: 
1.1.1.15  root     4894: Wed Apr 26 02:44:59 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4895: 
1.1.1.16  root     4896:        * cccp.c (handle_directive): Preprocess even #pragma, but copy 
                   4897:        to output file afterward.
                   4898:        (do_pragma): Use standard calling convention.
                   4899:        (install_builtins, special_symbol): Define __INCLUDE_LEVEL__.
                   4900: 
                   4901:        * cccp.c (do_include): Don't forget to close file.
                   4902: 
                   4903:        * final.c (output_asm_insn): Use PRINT_OPERAND_PUNCT_VALID_P
                   4904:        to validate punctuation after percent.
                   4905:        * tm-m68k.h, tm-alliant.h, tm-ns32k.h, tm-vax.h, tm-i386.h:
                   4906:        Define PRINT_OPERAND_PUNCT_VALID_P.
                   4907: 
1.1.1.15  root     4908:        * Version 1.35 released.
                   4909: 
                   4910:        * c-decl.c (grokdeclarator): Use INT_CST_LT only on int constants.
                   4911: 
                   4912: Tue Apr 25 15:47:11 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4913: 
                   4914:        * reload.c (find_reloads_address_1): Always return a value.
                   4915: 
                   4916:        * flow.c (mark_set_1): Look inside zero_extract, sign_extract.
                   4917: 
                   4918:        * expr.c (emit_library_call) [STACK_ARGS_ADJUST]:
                   4919:        Fix typo for `struct args_size'.
                   4920: 
                   4921: Mon Apr 24 00:12:18 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4922: 
                   4923:        * flow.c (mark_set_1): Look inside strict_low_part.
                   4924: 
                   4925:        * c-typeck.c (decl_constant_value): Don't use var's init if volatile.
                   4926: 
                   4927:        * print-tree.c (dump): Don't call walk on rtx's.
                   4928: 
                   4929:        * integrate.c (expand_inline_function): Convert expanded arg from
                   4930:        passed mode to nominal mode.
                   4931: 
                   4932: Sun Apr 23 13:14:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4933: 
                   4934:        * fixincludes: fix _IO macros if split across two lines.
                   4935:        Fix typo: EOF was indented.
                   4936: 
                   4937:        * gnulib2.c: New file with DImode library routines.
                   4938:        * Makefile (gnulib2): Put them into gnulib.
                   4939:        Must be explicitly requested.
                   4940: 
                   4941: Fri Apr 21 13:45:45 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4942: 
                   4943:        * cccp.c (main): Don't turn on trigraphs for -Wtrigraphs or -Wall;
                   4944:        use -trigraphs for that.
                   4945: 
                   4946:        * cccp.c (main): Use -trigraphs to enable trigraphs.
                   4947:        * gcc.c: Pass -trigraphs to cpp; don't pass -T.
                   4948: 
                   4949:        * Makefile: Variable srcdir relates location of sources
                   4950:        to current directory.  Default is `.'.
                   4951: 
                   4952:        * integrate.c (expand_inline_function): When copying expanded arg,
                   4953:        use mode it's passed in, not arg's nominal mode.
                   4954: 
                   4955:        * dbxout.c (dbxout_block): Print generated name with assemble_name.
                   4956: 
                   4957: Thu Apr 20 12:36:09 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4958: 
                   4959:        * stdarg.h: check __sparc__ instead of sparc.
                   4960: 
                   4961: Tue Apr 18 18:58:03 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4962: 
                   4963:        * tm-next.h (STARTFILE_SPEC): Define it.
                   4964: 
                   4965: Mon Apr 17 19:56:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4966: 
                   4967:        * dbxout.c (dbxout_block): Use ASM_GENERATE_INTERNAL_LABEL to format
                   4968:        the labels LBB... and LBE...
                   4969: 
                   4970: Sun Apr 16 23:57:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4971: 
                   4972:        * mips.md: Change MINUS to COMPARE where appropriate.
                   4973: 
                   4974: Sat Apr 15 16:11:49 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4975: 
                   4976:        * c-decl.c (finish_struct, redeclaration_error_message):
                   4977:        Rename variables named OLD and NEW.
                   4978: 
                   4979:        * sparc.md (cse'd mult pattern): Handle memory operands.
                   4980:        Optimize small integer operands.
                   4981: 
                   4982:        * stmt.c (expand_decl): On sparc, ensure dynamic arrays of doubles
                   4983:        are properly aligned, despite unaligned STACK_POINTER_OFFSET.
                   4984: 
                   4985: Fri Apr 14 10:59:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4986: 
                   4987:        * expr.c (expand_call): Bugs treating struct value address as param:
                   4988:        do so only if it's supposed to be pushed;
                   4989:        decode value of FUNCTION_ARG properly.
                   4990: 
                   4991:        * tm-altos3068.h (CPP_SPEC): Some braces were dropped.
                   4992: 
                   4993:        * gcc.c (pexecute): Print message when exec fails.
                   4994:        (perror_exec): New fn.
                   4995:        (perror_with_name,pfatal_with_name): Change message syntax.
                   4996: 
                   4997:        * tm-hp9k320.h (ASM_IDENTIFY_GCC): Define as no-op.
                   4998: 
                   4999: Wed Apr 12 00:20:31 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5000: 
                   5001:        * cse.c (cse_insn): Can record constant value being stored in
                   5002:        a bit field, if we can tell that truncation won't change it.
                   5003: 
                   5004:        * m68k.md (bfset, bfclr, bfchg insns): Do CC_STATUS_INIT
                   5005:        since the cc's are set from the old contents.
                   5006: 
                   5007:        * gcc.c (compilers): Running `as', put -o option before input file.
                   5008: 
                   5009:        * gcc.c: Delete output file only if that file's compilation fails.
                   5010:        * gcc.c (record_temp_file): Changed args: always_delete, fail_delete.
                   5011:        (store_arg): Likewise.  Callers changed.
                   5012:        (clear_failure_queue): Called after each compilation.
                   5013: 
                   5014: Tue Apr 11 01:18:53 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5015: 
                   5016:        * combine.c (subst): (SET (ZERO_EXTRACT) (OR (ZERO_EXTRACT) const))
                   5017:        optimization was sometimes invalid.
                   5018: 
                   5019:        * tm-m68k.h (NOTICE_UPDATE_CC): A doubleword move that requires 2 insns
                   5020:        does not set the cc's usefully.
                   5021: 
                   5022:        * Makefile (cleanlinks): Just do `clean', not `realclean'.
                   5023:        (realclean): Delete config links also.
                   5024: 
                   5025:        * expr.c (expand_call): Handle case where return value is in memory
                   5026:        but TARGET is a register.
                   5027: 
                   5028:        * c-typeck.c (build_binary_op_nodefault): New arg ERROR_CODE
                   5029:        is passed to binary_op_error instead of CODE.
                   5030:        All callers changed.
                   5031:        (binary_op_error): CODE = NOP_EXPR is new special case.
                   5032:        (truthvalue_conversion): Call build_binary_op_nodefault directly
                   5033:        and specify NOP_EXPR for the error code.
                   5034: 
                   5035:        * c-decl.c (xref_tag): If pedantic, warn on fwd ref to enum.
                   5036: 
                   5037: Mon Apr 10 19:44:48 1989  Chris Smith  (csmith at mozart)
                   5038: 
                   5039:        * tm-convex.h (PCC_BITFIELD_TYPE_MATTERS): It doesn't,
                   5040:        but set it anyway.  It makes for better code on this
                   5041:        word machine.
                   5042: 
                   5043:        * convex.md (one_compl*): add not:QI and not:HI, which
                   5044:        do get used after all.
                   5045: 
                   5046:        * tm-convex.h (A_REG_P, S_REG_P): define new macros
                   5047:        convex.md: use them
                   5048: 
                   5049:        * convex.md (addsi3): tidy up constraints.
                   5050: 
                   5051:        * tm-convex.h (REG_OK_FOR_INDEX_P): stack pointer is not ok.
                   5052: 
                   5053:        * convex.md: add a pattern to push REG+CONST so we can
                   5054:        prefer an A reg.
                   5055: 
                   5056:        * tm-convex.h (tstqi): should sign extend, not zero extend.
                   5057: 
                   5058:        * expr.c (convert_move): Extending narrow to DI via SI,
                   5059:        operand of extendsidi2 was wrong.
                   5060: 
                   5061:        * emit-rtl.c (gen_lowpart): Handle CONST_DOUBLE.
                   5062: 
                   5063: Mon Apr 10 05:19:39 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5064: 
                   5065:        * recog.c (nonmemory_operand): Test constant operands
                   5066:        as general_operand does.
                   5067: 
                   5068:        * tm-m68k.h (PRINT_OPERAND): Limit effect of code `d'
                   5069:        to constant addresses.
                   5070: 
                   5071:        * loop.c (can_eliminate_biv_p, eliminate_biv): Don't rely on givs with
                   5072:        nonconstant coefficients, since the coeffs could be zero.
                   5073: 
                   5074:        * loop.c (can_eliminate_biv_p): Check each giv for ! ignore
                   5075:        before assuming it can be used.
                   5076:        (check_eliminate_biv): New fn, a piece of strength_reduce broken out.
                   5077: 
                   5078:        * cccp.c (error_from_errno): New fn, like error and perror_with_name.
                   5079:        (do_include): Call that if open fails.
                   5080:        (finclude): Print I/O error msg before closing desc.
                   5081: 
                   5082:        * c-decl.c (shadow_tag): If more than one tag or structure,
                   5083:        or anything other than a tag, warning.
                   5084: 
                   5085:        * c-parse.y (components): Just warn if memb decl has no member,
                   5086:        and only if pedantic.
                   5087: 
                   5088:        * loop.c (strength_reduce): Print uids, not luids, for dump.
                   5089:        (record_giv): giv_count field counts only DEST_REG givs.
                   5090:        (check_dbra_loop): src_two_before_end was set wrong.
                   5091: 
                   5092:        * loop.c (record_giv): New arg LOOP_END; all callers changed.
                   5093:        Don't mark giv replaceable if used past LOOP_END.
                   5094:        (find_mem_givs): New arg LOOP_END; all callers changed.
                   5095: 
                   5096:        * out-i386.c (FP_CALL): Make this a `return' stmt.
                   5097: 
                   5098: Fri Apr  7 11:56:58 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5099: 
                   5100:        * expr.c (expand_expr, case ..._DECL): Preserve mode thru
                   5101:        calling change_address.
                   5102: 
                   5103:        * expr.c (emit_library_call): Typo: ARGNUM => COUNT.
                   5104: 
                   5105:        * expr.c (preexpand_calls, expand_call): Take note of RETURN_IN_MEMORY.
                   5106:        * stmt.c (assign_parms): Likewise.
                   5107:        * integrate.c (function_cannot_inline_p): Likewise.
                   5108: 
                   5109:        * STACK_ARGS_ADJUST: Arg is now a `struct arg_data' and it should
                   5110:        be updated in place.
                   5111:        * tm-mips.h: Define it.
                   5112:        * expr.c (expand_call): Adapt to this.  Assume padding comes after args
                   5113:        so turn off the feature of changing the args' offsets.
                   5114:        (emit_library_call): Adapt to this.
                   5115: 
                   5116:        * tm-mips.h (PRINT_OPERAND): Use CONST_DOUBLE_{LOW,HIGH}.
                   5117:        Truncate SFmode constants to single precision.
                   5118: 
                   5119:        * c-typeck.c (mark_addressable): Fix test for local vs global reg var.
                   5120: 
                   5121:        * config.gcc: Change `:-' to `-' in var refs.
                   5122:        Shell on convex doesn't handle `:-'.
                   5123: 
                   5124: Thu Apr  6 00:09:01 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5125: 
                   5126:        * integrate.c (expand_inline_function): Compare actual's mode
                   5127:        against formal's DECL_ARG_TYPE's mode, not TREE_TYPE's mode.
                   5128: 
                   5129:        * c-decl.c (implicitly_declare): Make the decl permanent if
                   5130:        in global binding level.  (Can happen for certain invalid input.)
                   5131: 
                   5132:        * c-typeck.c (build_modify_expr): Block path that made a MODIFY_EXPR
                   5133:        containing an ERROR_MARK.
                   5134: 
                   5135:        * config/tm.h: New file.
                   5136: 
                   5137:        * loop.c (only_reg_use_p): Fix bugs in recursion, add some fast
                   5138:        special cases.  Comment on return value was backwards.
                   5139:        (strength_reduce): Negate the value of only_reg_use_p.
                   5140: 
                   5141:        * genoutput.c (output_prologue): Output `#include hard-reg-set.h'.
                   5142:        * Makefile: insn-output.o depends on that.
                   5143: 
                   5144:        * toplev.c (main): Typo recognizing -Wswitch.
                   5145: 
                   5146:        * config.gcc (mips): New alternative.
                   5147:        * tm-mips.h, out-mips.c, mips.md, va-mips.h: New files.
                   5148:        * varargs.h: Include va-mips.h if on mips.
                   5149: 
                   5150: Wed Apr  5 16:58:04 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5151: 
                   5152:        * c-decl.c (duplicate_decls): Rename OLD, NEW to OLDDECL, NEWDECL.
                   5153: 
                   5154:        * stmt.c (expand_function_start): Ref subr instead of
                   5155:        current_function_decl; should make no difference.
                   5156: 
                   5157:        * stmt.c (assign_parms): Do extra padding for some parms,
                   5158:        controlled by MAX_PARM_BOUNDARY.
                   5159:        * expr.c (expand_call): Same thing for caller side.
                   5160:        Note this is implemented only for machines that lack push insns.
                   5161:        Also, in both cases, it doesn't handle variable-size args.
                   5162: 
                   5163: Tue Apr  4 12:22:06 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5164: 
                   5165:        * gcc.c (find_file): Try STANDARD_EXEC_PREFIX for startfiles too.
                   5166: 
                   5167:        * varasm.c (make_decl_rtl): Delete never-executed clause.
                   5168: 
                   5169:        * spur.md (movqi, loadhi, extend*, zero_extendhisi):
                   5170:        Make subregs with C code, not RTL patterns, so we can
                   5171:        avoid generating subreg of subreg.
                   5172: 
                   5173:        * optabs.c (emit_cmp_insn): Not all clauses always succeed,
                   5174:        so stop using `else' structure.
                   5175: 
                   5176:        * stmt.c (expand_return): Avoid moving void to void, in cleanups case.
                   5177: 
                   5178: Mon Apr  3 18:04:33 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5179: 
                   5180:        * m68k.md (cmphi): Don't allow a-reg vs a-reg, since that sign-extends.
                   5181:        If there is one a-reg, make sure it is not last.
                   5182: 
                   5183: Sun Apr  2 13:02:26 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5184: 
                   5185:        * stor-layout.c (agg_mode): Use highest mode that has desired size.
                   5186:        Allow all integer modes, but reject sizes > MAX_FIXED_MODE_SIZE.
                   5187:        (That defaults to the size of DImode.)
                   5188: 
                   5189:        * machmode.def: Add PSI, PDI and XF, CXF modes.
                   5190: 
                   5191: Sat Apr  1 00:50:11 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5192: 
                   5193:        * ns32k.md (ashd, lshd): Delete patterns that logand the count with 31.
                   5194:        The shift count is not truncated on this machine.
                   5195: 
                   5196:        * combine.c (subst): Simplify nested or's, nested xor's.
                   5197:        (try_distrib): XOR doesn't distribute through anything.
                   5198: 
                   5199:        * rtl.c (rtx_equal_p): Don't die on null pointers.
                   5200: 
                   5201:        * loop.c (eliminate_biv): Use COMPARE, not MINUS, in generated compare.
                   5202: 
                   5203:        * loop.c (invariant_p): Mem refs in constant pool are invariant.
                   5204: 
                   5205:        * c-decl.c (redeclaration_error_message): If -traditional, allow
                   5206:        redeclarations of typedef provided they agree.
                   5207: 
                   5208:        * c-decl.c (start_decl): Do expand_decl on the decl that pushdecl
                   5209:        returns.  If there was a prev. decl with a different type,
                   5210:        we have changed its type and cleared its old rtl, so it need new rtl.
                   5211: 
                   5212: Sat Apr  1 00:50:11 1989  Matthew Self  (rms at sugar-bombs.ai.mit.edu)
                   5213: 
                   5214:        * expr.c (convert_move): Modified to use mode classes
                   5215:        instead of refering to specific machine modes.
                   5216: 
                   5217:        * expr.c (do_jump): Converted to use CONST0_RTX macro.
                   5218:        do_jmp no longer refers to any machine modes directly except
                   5219:        for VOIDmode!
                   5220: 
                   5221:        * expr.c (compare, compare1): Modified to use CONST0_RTX
                   5222:        macro.  No longer refers to any machine modes directly
                   5223:        except VOIDmode and BLKmode!
                   5224: 
                   5225:        * machmode.def: Documented assumptions made about the order
                   5226:        of machine modes during mode widening.
                   5227: 
                   5228:        * optabs.c (expand_binop, expand_twoval_binop, expand_unop,
                   5229:        emit_cmp_insn): Added mode widening which is independent of
                   5230:        specific machine modes.  It assumes that we may widen to any
                   5231:        higher numbered mode of the same mode class.
                   5232:          NOTE: the checks for VOIDmode ops which were present in
                   5233:        QI and HI to SI widening are now present in all widening.
                   5234:        I assume this is correct.  Also, widening is now possible
                   5235:        from QI to HI.  This may or may not be a good thing....
                   5236: 
                   5237:        * rtl.h (CONST0_RTX): Added definition of new macro
                   5238:        CONST0_RTX (mode).
                   5239: 
                   5240:        * rtl.h (GET_NOTE_INSN_NAME, GET_REG_NOTE_NAME): New macros.
                   5241:        * rtl.c (note_insn_name, reg_note_name): New tables.
                   5242:        * rtl.def (NOTE): Change last field from `i' to `n'.
                   5243:        * rtl.c (print_rtx): Print mode of INSN_LIST or EXPR_LIST as reg-note.
                   5244:        Print operand code `n' as name of kind of note.
                   5245:        (read_rtx): treat `n' like `i'.
                   5246: 
                   5247:        * loop.c (struct induction): Add `mode' field.
                   5248:        (strength_reduce, record_giv): Set the `mode' field in V.
                   5249:        (can_eliminate_biv_p, eliminate_biv): Use that field.
                   5250: 
                   5251:        * loop.c (struct iv_class): `init_insn' records what inits the biv.
                   5252:        Replaces `init_val_set' flag.
                   5253:        (strength_reduce): Update and test `init_insn' instead.
                   5254:        Use of a biv between its init and the start of the loop
                   5255:        does not preclude its elimination from the loop.
                   5256:        Setting a giv is ok for eliminating a biv, even if giv is "ignore",
                   5257:        since that just means giv will be combined with another.
                   5258:        Handle some DEST_ADDR givs for that purpose.
                   5259:        Test for giv-setting before check can_eliminate_biv_p.
                   5260:        New error check for replaceable giv whose value needed after loop.
                   5261:        (only_reg_use_p): New fn.
                   5262: 
                   5263:        * expr.c (expand_expr): PLUS, MINUS with EXPAND_SUM:
                   5264:        Associate even harder.
                   5265: 
                   5266:        * loop.c (strength_reduce): Treat all constant biv init vals like ints.
                   5267: 
                   5268:        * loop.c (strength_reduce): Clear all_reduced when v->ignore is set;
                   5269:        the code to check this later didn't always do the job.
                   5270: 
                   5271:        * loop.c (verify_loop): Set loop_continue.
                   5272:        (scan_loop): mention its value.
                   5273:        * rtl.h: Define NOTE_INSN_LOOP_CONT.
                   5274:        * stmt.c (expand_loop_continue_here): Output one.
                   5275: 
                   5276: Fri Mar 31 10:08:29 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5277: 
                   5278:        * c-typeck.c (pointer_int_sum, pointer_diff): Treat const void * like
                   5279:        void *.
                   5280: 
                   5281:        * rtl.c (rtx_addr_varies_p): Don't die on null exp.
                   5282:        * cse.c (refers_to_mem_p, refers_to_p): Likewise.
                   5283: 
                   5284:        * gcc.c (validate_switches, validate_all_switches): New fns.
                   5285:        Mark a switch as valid if any compiler spec or the linker spec
                   5286:        matches it, even for languages not being used.
                   5287: 
                   5288: Thu Mar 30 00:22:14 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5289: 
                   5290:        * loop.c (loop_optimize, move_movables): when moving a `clr' insn used
                   5291:        in zero-extension, sometimes change it to an `and' so that the
                   5292:        significant low bits are not clobbered.
                   5293: 
                   5294:        * cccp.c: Implement __BASE_FILE__ and #once.
                   5295:        (savestring): New fn.
                   5296:        (struct file_name_list): new name for struct directory_stack.
                   5297:        (enum node_type): Add T_ONCE, T_BASE_FILE.
                   5298:        (directive_table): Add #pragma once.
                   5299:        (initialize_builtins): Add __BASE_FILE__.
                   5300:        (special_symbol): Handle __BASE_FILE__, together with __FILE__.
                   5301:        (do_include): Ignore the file if it's on the #pragma once list.
                   5302:        (do_once): New fn; add current file to #pragma once list.
                   5303: 
                   5304:        * cccp.c (do_include): Don't add non-ex files to list of deps.
                   5305: 
                   5306:        * config.gcc: Use {...:-...}, not {...=...}.
                   5307: 
                   5308:        * c-parse.y: Add precedence for IF/ELSE, and for parens;
                   5309:        avoids some conflicts.
                   5310: 
                   5311:        * tm-newsgas.h: Include tm-news.h and define USE_GAS.
                   5312: 
                   5313:        * tm-news.h: New name for tm-news800.h.
                   5314:        If not USE_GAS, define SONY_ASM.
                   5315:        Don't define USE_GAS by default.
                   5316:        (CPP_PREDEFINES): Various alternatives depending on processor type.
                   5317:        (ASM_FORMAT_PRIVATE_NAME): Override this.
                   5318:        (ASM_IDENTIFY_GCC): Override; output nothing.
                   5319:        (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE): Round fsize up to % 4.
                   5320:        Max for halfword link insn is 32k, not 64k.
                   5321:        (FUNCTION_EPILOGUE): Don't output move.l if no regs to restore.
                   5322:        (PRINT_OPERAND_ADDRESS): Change handling of tableref pc-rel addresses.
                   5323:        * m68k.md (movhi): Add SONY_ASM conditional.
                   5324: 
                   5325:        * cse.c (cse_insn): If replacing a dest address, preserve MEM_IN_STRUCT
                   5326: 
                   5327:        * gcc.c (error, fatal): alternate varargs defns if HAVE_VPRINTF.
                   5328: 
                   5329: Wed Mar 29 09:54:13 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5330: 
                   5331:        * gcc.c (process_command): Check WORD_SWITCH_TAKES_ARG, so that
                   5332:        -Tdata can be handled right.
                   5333: 
                   5334:        * stmt.c (check_for_full_enumeration_handling): new fn, for warn_switch
                   5335:        (expand_end_case): Call it, if orig index was enum.
                   5336:        * toplev.c (main): Handle -Wswitch.
                   5337:        * c-parse.y (SWITCH stmt): Pass orig switch expr to expand_end_case.
                   5338: 
                   5339:        * tm-*.h, out-*.c: Uniformly use reg_names, not reg_name, and don't
                   5340:        define any duplicates.
                   5341:        * final.c: Delete reg_name.
                   5342: 
                   5343:        * c-parse.y (is_reserved_word): Add keywords __asm and __inline;
                   5344:        also __const and __volatile.
                   5345:        (yylex): Keywords that start with `__' are recognized regardless of
                   5346:        -traditional or -ansi.
                   5347: 
                   5348:        * c-parse.y (check_newline): Always recognize #ident.
                   5349:        Macro IDENT_DIRECTIVE is no more.
                   5350:        If ASM_OUTPUT_IDENT is undefined, don't output anything for #ident.
                   5351:        * tm-3b1.h: Don't define IDENT_DIRECTIVE or ASM_OUTPUT_IDENT.
                   5352:        * tm-encore.h, tm-i386gas.h, tm-i368v.h, tm-sun386i.h, tm-vaxv.h:
                   5353:        Don't define IDENT_DIRECTIVE; define ASM_OUTPUT_IDENT to output in
                   5354:        default way.
                   5355: 
                   5356:        * expr.h (RETURN_IN_MEMORY): New macro, default defn here.
                   5357:        * expr.c (expand_call): Use it to control where to return value.
                   5358:        * stmt.c (expand_function_start): Likewise.
                   5359: 
                   5360:        * out-sparc.c (find_addr_reg): Abort if none found.
                   5361:        Eliminate confusion; do only one change between tests for PLUSness.
                   5362:        (output_move_double): Arg to find_addr_reg is address, not mem ref.
                   5363:        * out-m68k.c, out-spur.c, out-i386.c, out-alliant.c: Likewise.
                   5364: 
                   5365:        * jump.c (find_cross_jump): Don't let either E1 or E2 be included
                   5366:        in the range of matching insns preceding the other (E2 or E1).
                   5367: 
                   5368:        * c-parse.y (check_newline): No error for `#pragma\n'.
                   5369: 
                   5370:        * Makefile (gcc.o): Control STANDARD_STARTFILE_PREFIX here.
                   5371: 
                   5372:        * stmt.c (walk_fixup_memory_subreg): handle null.
                   5373: 
                   5374:        * tm-sparc.h (FUNCTION_BLOCK_PROFILER): Change LPBnn to LPYnn,
                   5375:        to avoid conflict with final.c.
                   5376: 
                   5377: Tue Mar 28 15:23:17 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5378: 
                   5379:        * cccp.c (do_include): If fail, print system error message.
                   5380:        (perror_with_name): Use more standard error format.  Inc. `errors'.
                   5381: 
                   5382:        * dbxout.c (dbxout_function): Output any temporary types
                   5383:        that were made by dbxout itself.
                   5384: 
                   5385:        * stmt.c: always use an epilogue if pcc-struct-return.
                   5386:        (expand_function_start): Compute return_label after testing that.
                   5387:        (expand_function_end): Output a return insn after pcc-struct-return
                   5388:        processing, if there is a return insn.
                   5389:        (expand_null_return): Don't output a return insn, in that case.
                   5390:        Simplify the conditions--depends entirely on HAVE_return.
                   5391: 
                   5392:        * tm-m68k.h (FUNCTION_BLOCK_PROFILER): Use jsr, not call.
                   5393: 
                   5394:        * reload.c (find_reloads): Certain mem addresses will be offsetable
                   5395:        after reloading; in particular, those where reg_equiv_address applies.
                   5396: 
                   5397:        * loop.c (check_dbra_loop): Change MINUS to COMPARE.
                   5398: 
                   5399:        * c-typeck.c (convert_for_assignment): Return THE standard error_mark.
                   5400: 
                   5401: Thu Mar 23 09:39:02 1989  Richard M. Stallman  (rms at watson)
                   5402: 
                   5403:        * c-parse.y (components): Error if empty.
                   5404: 
                   5405:        * dbxout.c (dbxout_symbol): Output const variables as N_STSYM.
                   5406: 
                   5407:        * varasm.c (force_const_mem): Use ASM_OUTPUT_DOUBLE_INT if defnd.
                   5408: 
                   5409:        * c-decl.c (grokdeclarator): Warn about `long long long'.
                   5410: 
                   5411:        * reload1.c (reload): When changing REG to MEM, clear REG_USERVAR_P.
                   5412:        * final.c (alter_subreg): Preserve volatile bit of MEM.
                   5413: 
                   5414:        * m68k.md (cmpsi, cmphi): Permit cmpm.
                   5415: 
                   5416:        * gcc.c (find_file): Use standard_startfile_prefix_2.
                   5417:        Now search /usr/local/lib/, /lib/ and /usr/lib/.
                   5418: 
                   5419:        * tm-m68k.h (PRINT_OPERAND): Support code `d'.
                   5420:        * m68k.md (cmpsi, cmphi, cmpqi): Use it for all mem addresses.
                   5421: 
                   5422:        * final.c (output_asm_insn): Don't allow %LETTER without an
                   5423:        operand number.
                   5424:        * tm-m68k.h, m68k.md, tm-hp9k320.h, tm-news*.h: Use %@ instead of %s.
                   5425:        * tm-alliant.h, alliant.md: Likewise.
                   5426:        * i386.md, out-i386.h: Put `0' after each %L, %W, %B, %S, %Q, %R.
                   5427: 
                   5428:        * stmt.c (expand_end_stmt_expr): Pop pending stack args.
                   5429: 
                   5430:        * varasm.c (assemble_variable): For 0-size common variable,
                   5431:        allocate at least 1 byte.
                   5432: 
                   5433:        * tm-encore.h (ASM_OUTPUT_DOUBLE, PRINT_OPERAND): Use 0f, not 0l,
                   5434:        for doubles.
                   5435: 
                   5436: Mon Mar 13 10:24:56 1989  Richard M. Stallman  (rms at ccvi)
                   5437: 
                   5438:        * out-i386.h (function_prologue, function_epilogue):
                   5439:        Use call_used_regs, not a copy, so -f options work.
                   5440:        Save regs in the opposite order.
                   5441:        Save regs even starting from 0 if they happen to be call-saved.
                   5442: 
                   5443:        * Bug fixes from Rob McMahon.
                   5444: 
                   5445:        * loop.c (strength_reduce): When inserting insn to set
                   5446:        nonreplaceable giv, put it after all the consecutive insns
                   5447:        that compute it.
                   5448: 
                   5449:        * reload.c (find_reloads): When forcing const to mem,
                   5450:        use the insn's operand mode, not the const's mode.
                   5451: 
                   5452:        * reload1.c (choose_reload_targets): Use wider of inmode and outmode
                   5453:        when determining have_groups.
                   5454: 
                   5455:        * reload1.c (choose_reload_targets): typo checked wrong insn with
                   5456:        constraint_accepts_reg_p.
                   5457: 
                   5458:        * reload1.c (choose_reload_targets): Enable #if-0'd code for
                   5459:        forgetting old reloads in case of output reload from a non-spill-reg.
                   5460: 
                   5461: Sun Mar 12 00:04:49 1989  Richard M. Stallman  (rms at ccvi)
                   5462: 
                   5463:        * c-parse.y (yyerror): Add forward-decl here.
                   5464:        * c-tree.h: Delete decl here.
                   5465: 
                   5466:        * New macro USE_C_ALLOCA.
                   5467:        * cse.c (cse_main): Do alloca (0) to clear out C alloca.
                   5468:        * flow.c (life_analysis):
                   5469:        * local-alloc.c (local_alloc):
                   5470:        * reload1.c (reload_as_needed): likewise.
                   5471: 
                   5472:        * loop.c (emit_iv_init_code, eliminate_biv):
                   5473:        Always put constant in a PLUS last.
                   5474: 
                   5475:        * gcc.c (make_switch): Unused function deleted.
                   5476: 
                   5477:        *gcc.c (switches): Each switch has a `used' field.
                   5478:        (process_command): Init it to 0 when making `switches'.
                   5479:        (do_spec_1, handle_braces, give_switch): Set to 1 when switch is used.
                   5480:        (main): If it remains 0 at the end, print error message.
                   5481: 
                   5482:        * expr.c (convert_move, convert_to_mode): Don't truncate a MEM in
                   5483:        place if it is volatile.
                   5484: 
                   5485:        * loop.c (strength_reduce): When reducing a giv, if the biv is
                   5486:        incremented between the giv's creation and its use, increment
                   5487:        the reduced giv var *after* its use.
                   5488: 
                   5489:        * c-decl.c (duplicate_decls): Warn about proto vs nonproto
                   5490:        only if no other errors apply.
                   5491: 
                   5492:        * jump.c (invert_exp): Don't crash if arg is null.
                   5493: 
                   5494:        * alliant.md (float*i*f2): Don't allow immediate ops.
                   5495:        (sne): Fix typo, fsne => fsneq.
                   5496: 
                   5497:        * expr.c (store_one_arg, expand_call): When size doesn't matter,
                   5498:        pass const0_rtx, not (rtx) 0.
                   5499: 
                   5500:        * expr.c (do_jump): Args to invert_exp were missing.
                   5501: 
                   5502:        * gcc.c (store_arg): Now 2 separate args for delete-on-success
                   5503:        and delete-on-failure.  All calls changed.
                   5504:        (do_spec_1): DELETE_THIS_FILE is meaningful for output files.
                   5505: 
                   5506:        * config/xm-alliant.h (LINK_SPEC): Pass -X to linker.
                   5507: 
                   5508: Sat Mar 11 10:30:41 1989  Richard M. Stallman  (rms at ccvi)
                   5509: 
                   5510:        * tm-*.h, xm-*.h, *.md: Moved to subdir `config'.
                   5511:        * output-*.c: Moved to `config/out-*.c'.
                   5512:        * Makefile (.c.o): Define rule to use -Iconfig when compiling.
                   5513:        (various): Delete the commands from some compilation rules.
                   5514:        Put -Iconfig in other compilation commands.
                   5515:        Also some reordering of variable defs and comments for cleanliness.
                   5516:        (realclean): Change a shell comment to a Make comment.
                   5517: 
                   5518:        * fold-const.c (fold): Simplify and extend TRUTH_... operators
                   5519:        knowing that args must be ints and values will be 0 or 1.
                   5520: 
                   5521:        * gcc.hlp: New file (for VMS).
                   5522: 
                   5523:        * reload1.c (reload): Don't let two 2-groups overlap.
                   5524: 
                   5525:        * reload.c (push_reloads): When a plain reg matches a reload
                   5526:        for an increment, don't change the reload_in to a plain reg.
                   5527:        Leave the increment there.
                   5528: 
                   5529:        * integrate.c (expand_inline_function): Don't try to inline
                   5530:        unless the parm machine modes really match what's expected.
                   5531: 
                   5532:        * stmt.c (emit_case_nodes): default_label is an rtx, not tree.
                   5533: 
                   5534:        * tm-next.h (DOLLARS_IN_IDENTIFIERS): Define it as 1.
                   5535: 
                   5536:        * output-sparc.c (output_move_double): Don't trust random structs
                   5537:        to be double-word aligned.
                   5538: 
                   5539:        * gcc.c: Pass -Wcomments to cpp.
                   5540: 
                   5541:        * rtl.def (ASM_OPERANDS): New operands, source file and line.
                   5542:        * rtl.h (ASM_OPERANDS_*): New macros for components of ASM_OPERANDS.
                   5543:        * stmt.c (expand_asm_operands): Use new fields, not REG_ASM_* notes.
                   5544:        * toplev.c (error_for_asm): likewise.
                   5545:        * rtl.h (enum reg_note): Delete REG_ASM_FILE, REG_ASM_LINE.
                   5546: 
                   5547:        * combine.c (try_combine): Check explicitly for volatility in I2, I1.
                   5548: 
                   5549: Fri Mar 10 19:30:10 1989  Richard M. Stallman  (rms at ccvi)
                   5550: 
                   5551:        * c-parse.y (GOTO stmt): Set TREE_USED for the label.
                   5552:        * c-decl.c (poplevel): Warn about unused label.
                   5553: 
                   5554:        * c-decl.c (warn_pointer_arith, warn_strict_prototypes): New vars.
                   5555:        (lang_decode_options): Options to set them.
                   5556:        * c-typeck.c (pointer_int_sum, c_sizeof): Maybe warn if bad target.
                   5557:        * c-decl.c (grokparms): Maybe warn if nonprototype fn decl.
                   5558: 
                   5559:        * flags.h, toplev.c (warn_shadow): New flag.
                   5560:        * toplev.c (main): Decode it.
                   5561:        * c-decl.c (pushdecl): Maybe warn about any shadowing.
                   5562:        Existing parm-shadowing warning now disabled if shadowing decl
                   5563:        is also a parm.
                   5564: 
                   5565:        * flags.h, toplev.c (warn_id_clash, id_clash_len): New flags.
                   5566:        * toplev.c (main): Decode -Wid-clash-LEN.
                   5567:        * tree.c (get_identifier): Implement warning if two idents match.
                   5568: 
                   5569:        * toplev.c (compile_file): Warn about statics defined and unused.
                   5570: 
                   5571:        * rtl.h (CONST0_RTX): New macro.
                   5572: 
                   5573:        * recog.c (offsetable_address_p): New 1st arg says whether to demand
                   5574:        a strictly valid address.
                   5575:        (offsetable_memref_p): Pass nonzero.
                   5576:        * stmt.c (optimize_bit_field): Pass zero.
                   5577: 
                   5578:        * cccp.c (main): Allow -Wcomment like -Wcomments.
                   5579:        * c-decl.c (lang_decode_options): Likewise.
                   5580: 
                   5581: Sun Mar  5 15:02:59 1989  Randall Smith  (randy at apple-gunkies.ai.mit.edu)
                   5582: 
                   5583:        * m68k.md [tstdf, cmp[sd]f, truncdfsf2, floatsi[sd]f2, add[sd]f3,
                   5584:        sub[sd]f3, mul[sd]f3, div[sd]f3, neg[sd]f2, abs[sd]f2]: Made sure
                   5585:        that the test function's in the match_operands of the define_expand
                   5586:        and define_insn's matched, and made that test function
                   5587:        "register_operand" when both define_insn's really needed registers
                   5588:        in that spot.
                   5589: 
                   5590: Sat Mar  4 00:25:37 1989  Richard M. Stallman  (rms at c2v)
                   5591: 
                   5592:        * expr.c (emit_push_insn): Don't ever bypass the big-endian
                   5593:        padding at the end.
                   5594: 
                   5595:        * cccp.c (deps_output): Break line if would otherwise exceed 75 chars.
                   5596:        Make a name for that value 75.
                   5597: 
                   5598:        * combine.c (subst): Handle general case of (subreg (sign_extend X)).
                   5599: 
                   5600:        * tm-sun386i.h (CPP_PREDEFINES): Define `sun'.
                   5601: 
                   5602:        * fixincludes: change `find' calls to find dirs thru symlinks.
                   5603: 
                   5604:        * flow.c (mark_set_1): (set (subreg (reg N))...)
                   5605:        does make reg N significant for this basic block.
                   5606: 
                   5607: Fri Mar  3 13:55:25 1989  Richard M. Stallman  (rms at c2v)
                   5608: 
                   5609:        * c-decl.c (parmlist_tags_warning): Print an explanation
                   5610:        for the first such warning.
                   5611: 
                   5612:        * i386.md (extendsfdf): Let op 1 match op0 if that is an fp reg.
                   5613: 
                   5614:        * expr.c (expand_call): Fix stupid errors copying pcc struct value.
                   5615: 
                   5616:        * varasm.c (output_constructor): Discard NOP_EXPRs from build_c_cast.
                   5617: 
1.1.1.14  root     5618: Thu Feb 23 05:55:57 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5619: 
                   5620:        * Version 1.34 released.
                   5621: 
                   5622:        * c-typeck.c (build_c_cast): If EXPR is an error mark, return that.
                   5623: 
                   5624:        * fold-const.c (div_and_round_double): Abort if divisor is 0.
                   5625:        (combine): Likewise, for real constants.
                   5626:        (real_zerop): New subroutine.
                   5627:        (fold): Don't try to fold division if divisor is 0.
                   5628:        Don't try to fold reals if can't do arithmetic on them.
                   5629:        Don't try to compare reals for TRUTH_..._EXPR if can't do arith.
                   5630:        Use real_zerop to test reals for zeroness.
                   5631:        For TRUTH_ANDIF_EXPR and TRUTH_ORIF_EXPR, can simplify based on
                   5632:        first operand alone.
                   5633: 
                   5634:        * c-typeck.c (store_init_value): Fix error msg text.
                   5635: 
                   5636:        * tm-sparc.h (FUNCTION_PROFILER): Use `mcount'.
                   5637:        * tm-sun4os3.h (FUNCTION_PROFILER): Override it; use `.mcount'.
                   5638: 
                   5639: Wed Feb 22 04:33:22 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5640: 
                   5641:        * tm-hp9k320.h (CPP_SPEC, CPP_PREDEFINES): Make handling of
                   5642:        -Dmc68000 depend on TARGET_DEFAULT.
                   5643: 
                   5644:        * tm-sparc.h (FUNCTION_PROFILER): Missing newline in fprintf.
                   5645: 
                   5646:        * integrate.c (expand_inline_function): Don't map struct-value-address
                   5647:        in memory if fn does not use it.
                   5648: 
                   5649:        * c-parse.y (check_newline): At skipline, detect eof.
                   5650: 
                   5651:        * stmt.c (uninitialized_vars_warning): Change text of warning.
                   5652: 
                   5653: Tue Feb 21 03:58:50 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5654: 
                   5655:        * output-sparc.c (output_mul_insn): Handle case of both args
                   5656:        in reg 8, or both in reg 9.
                   5657: 
                   5658:        * tm-sparc.h (ASM_SPEC): Define, to handle -pipe.
                   5659: 
                   5660:        * tm-sparc.h (FUNCTION_PROFILER): Add omitted fprintf args.
                   5661:        (BLOCK_PROFILER): Likewise.  Use tempvar.
                   5662: 
                   5663:        * m68k.md (QImode btst): Allow nonoffsetable mem refs.
                   5664: 
                   5665: Mon Feb 20 00:32:42 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5666: 
                   5667:        * flow.c (mark_used_regs): Don't record about global reg vars.
                   5668: 
                   5669:        * config.gcc (convex-*): tm file names are tm-convex1.h, tm-convex2.h.
                   5670: 
                   5671:        * tm-vax.h, tm-ns32k.h, tm-alliant.h: Define PCC_STATIC_STRUCT_RETURN.
                   5672: 
                   5673:        * gcc.c (compilers): Pass `-a' to cc1.
                   5674:        * tm-sun3.h, tm-sparc.h (LIB_SPEC): Define, to handle `-a'.
                   5675: 
                   5676:        * expr.c (emit_push_insn): Copy stack addresses to be passed to bcopy;
                   5677:        old method of preadjustment is broken by changes in emit_library_call.
                   5678: 
                   5679:        * c-decl.c (finish_decl): New temp `temporary'; don't get confused
                   5680:        about whether allocation was temporary.
                   5681: 
                   5682: Sun Feb 19 17:03:35 1989  Chris Smith  (csmith at mozart)
                   5683: 
                   5684:        * tm-convex.h: define PCC_STATIC_STRUCT_RETURN
                   5685: 
                   5686:        * convex.md:
                   5687:        remove pshea patterns, movsi does it better.
                   5688:        add ashift:DI abs:DF abs:SF
                   5689:        (tstdi): use a clobbered register instead of a bogus DImode zero.
                   5690:        (trunchiqi2): delete noninstruction cvth.b
                   5691:        (udivsi3, udivhi3, udivqi3): deleted, expand_divmod does it now.
                   5692:        (call, call_value): delete stupid call/ret -> jump optimization.
                   5693:        (call, call_value): flush call_ap_check, use reg_mentioned_p instead.
                   5694: 
                   5695:        * convex.md: (movxx): swap constraint alternatives so that the
                   5696:        leftmost alternative is (set =g r).  This makes (set mem const)
                   5697:        get combinable input reloads of const instead of uncombinable
                   5698:        output reloads to mem.  They still do not combine, but wtf,
                   5699:        I'll inch up on it.
                   5700: 
                   5701:        * output-convex.c: (const_double_{high,low}_int): new routines
                   5702:        to pick apart const_doubles for assembler.
                   5703: 
                   5704: Sun Feb 19 01:40:17 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5705: 
                   5706:        * sparc.md (shift memory right 24 bits): Another `a1' typo.
                   5707: 
                   5708:        * config.gcc (convex-*): Delete troublesome whitespace.
                   5709: 
                   5710:        * c-decl.c (grokparms): Delete redundant `parm != 0' tests.
                   5711: 
                   5712:        * stmt.c (fixup_memory_subreg): Slight simplification.
                   5713: 
                   5714:        * tm-sparc.h (FUNCTION_PROFILER): Fill delay slot.
                   5715:        (FUNCTION_BLOCK_PROFILER): Use sethi.
                   5716:        (BLOCK_PROFILER): Use %g2, not %g0.  Use sethi.
                   5717: 
                   5718: Sat Feb 18 02:11:25 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5719: 
                   5720:        * expr.c (expand_expr): Ignore const array's initial value
                   5721:        if it's an error_mark.
                   5722:        * c-decl.c (finish_decl): Set DECL_INITIAL to an error_mark
                   5723:        if the decl is a permanent node.
                   5724: 
                   5725:        * cccp.c (rescan): If traditional, if macro ends inside string,
                   5726:        keep scanning for the end of the string.
                   5727:        (handle_directive): A line of just `#' becomes blank.
                   5728:        (collect_expansion): \ in strings traditionally doesn't hide macro arg.
                   5729: 
                   5730:        * m68k.md, alliant.md (addsi3): New alternative a=r+a, in addition
                   5731:        to old a=a+r, needed since reload-insns are not commuted.
                   5732: 
                   5733: Fri Feb 17 03:15:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5734: 
                   5735:        * tm-m68k.h (PCC_STATIC_STRUCT_RETURN): Define it.
                   5736:        * toplev.c, flags.h: New var flag_pcc_struct_return.
                   5737:        * stmt.c (expand_function_start): Obey new flag and new variable.
                   5738:        * expr.c (expand_call): Obey new flag and new variable.
                   5739:        * varasm.c (assemble_static_space): New function.
                   5740: 
                   5741:        * stmt.c (expand_return): If we need cleanups, compute retval first
                   5742:        into pseudo reg, then do the cleanups, then copy it to return reg.
                   5743: 
                   5744: Thu Feb 16 02:59:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5745: 
                   5746:        * regclass.c (init_reg_sets_1): Win if STATIC_CHAIN_REGNUM undefined.
                   5747: 
                   5748:        * expr.c (expand_call): Handle conflict between two precomputed
                   5749:        args that are both function calls returning structures.
                   5750: 
                   5751:        * loop.c (move_movables): Bkwds test of m->partial, for a matching reg.
                   5752: 
                   5753:        * expr.c (emit_library_call, expand_call): Handle STACK_ARGS_ADJUST.
                   5754: 
                   5755: Wed Feb 15 01:59:15 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5756: 
                   5757:        * toplev.c (flag_caller_saves): New var, for -fcaller-saves.
                   5758:        DEFAULT_CALLER_SAVES controls initial value.
                   5759:        * global-alloc.c (find_reg): Do caller saves only if flag set.
                   5760:        * local-alloc.c (find_free_reg): Do caller saves only if flag set.
                   5761:        * tm-alliant.h, tm-convex.h: Define DEFAULT_CALLER_SAVES.
                   5762: 
                   5763: Wed Feb 15 01:59:15 1989  Chris Smith  (rms at sugar-bombs.ai.mit.edu)
                   5764: 
                   5765:        * caller-save.c: New file.
                   5766:        * regs.h (CALLER_SAVE_PROFITABLE): New macro.
                   5767:        (reg_n_calls_crossed): new int-vector replaces reg_crosses_calls.
                   5768:        * flow.c (allocate_for_life_analysis, propagate_block, dump_flow_info):
                   5769:        Use reg_n_calls_crossed.
                   5770:        * stupid.c (stupid_mark_refs, stupid_life_analysis): Likewise.
                   5771:        * global-alloc.c (find_reg): Sometimes allocate call-clobbered regs
                   5772:        for call-crossing pseudos.
                   5773:        New arg ACCEPT_CALL_CLOBBERED; callers changed.
                   5774:        * local-alloc.c (find_free_reg): Similar changes.
                   5775:        (qty_n_calls_crossed): New int-vector replaces qty_crosses_calls.
                   5776:        (alloc_qty, local_alloc, combine_regs, find_free_reg): change that var.
                   5777:        * regclass.c (call_fixed_regs, call_fixed_reg_set): new vars.
                   5778:        (init_reg_sets_1): Initialize them.
                   5779:        * reload1.c (reload): Call caller-saves processing if needed.
                   5780: 
                   5781: Wed Feb 15 01:59:15 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5782: 
                   5783:        * expr.c (expand_expr): INTEGER_CST for DImode: don't handle
                   5784:        endianness here.  So CONST_DOUBLE_LOW is always the low word.
                   5785:        * varasm.c (force_const_mem): Handle it here. 
                   5786: 
                   5787:        * expr.c (convert_move): widening followed by extendsidi2 had braino.
                   5788: 
                   5789:        * integrate.c: Don't include ctype.h; not needed and kills Sun cpp.
                   5790: 
                   5791:        * m68k.md (cmpsf, cmpdf and their recognizers):
                   5792:        Replace MINUS with COMPARE.
                   5793:        Also, use VOIDmode for COMPAREs, not SF or DF.
                   5794: 
                   5795:        * optabs.c (sign_expand_binop): Handle ops such as division where
                   5796:        an unsigned char could be widened and handled with signed int insns.
                   5797:        * expmed.c (expand_divmod): Use that.
                   5798: 
                   5799:        * c-typeck.c (digest_init): Allow for type variants in validating
                   5800:        initialization from a string constant.
                   5801: 
                   5802:        * c-typeck.c (decl_constant_value): Disable opt. if pedantic or
                   5803:        outside functions, so that validity of program is never affected.
                   5804: 
                   5805:        * fold-const.c (fold): Signedness-test for ABS_EXPR was backwards.
                   5806: 
                   5807: Tue Feb 14 01:30:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5808: 
                   5809:        * cccp.c (main): Don't omit normal output, if we want deps on
                   5810:        a separate stream.
                   5811: 
                   5812:        * c-decl.c (grokdeclarator): Don't record any arg types for functions
                   5813:        if -traditional.
                   5814: 
                   5815:        * print-tree.c (prtypeinfo): Mention permanent attribute.
                   5816: 
                   5817:        * tm-next.h: New file.
                   5818: 
                   5819:        * c-typeck.c (decl_constant_value): The DECL_INITIAL may be ERROR_MARK.
                   5820: 
                   5821:        * c-decl.c (duplicate_decls): For fns, new static decl overrides
                   5822:        old non-static one.
                   5823: 
                   5824:        * emit-rtl.c (gen_lowpar, gen_highpart): Use change_address, so we
                   5825:        preserve volatility, etc.
                   5826: 
                   5827:        * stmt.c (expand_expr_stmt): Use emit_filename, emit_lineno
                   5828:        as file and line for any warning.
                   5829:        * emit-rtl.c (emit_line_note): Set those vars.
                   5830: 
                   5831:        * c-decl.c (store_parm_decls): If -Wimplicit, warn of arg with no decl.
                   5832: 
                   5833:        * recog.c (offsetable_address_p): Use strict_memory_address_p,  
                   5834:        since called from reload.c.
                   5835: 
                   5836: Mon Feb 13 03:11:50 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5837: 
                   5838:        * sparc.md (compare-to-reg patterns): Some still had MINUS.
                   5839: 
                   5840:        * toplev.c (main): Warn if `-a' on system that can't handle it.
                   5841: 
                   5842:        * stmt.c (expand_asm_operands): Delete unused local `val'.
                   5843:        (pushcase_range): Likewise for `value'.
                   5844:        (fixup_var_refs): Likewise for `insn'.
                   5845:        * emit-rtl.c (start_sequence): Likewise for `save'.
                   5846:        * loop.c (scan_loop): Likewise for `before_start'.
                   5847:        * expr.c (expand_expr): Delete label `binop1'.
                   5848: 
                   5849:        * reload1.c (constraint_accepts_reg_p): Handle SUBREGs of REGs.
                   5850: 
                   5851: Sun Feb 12 05:37:46 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5852: 
                   5853:        * gnulib.c (__bb_init_func): New function
                   5854: 
                   5855:        * tm-m68k.h (BLOCK_PROFILER, FUNCTION_BLOCK_PROFILER): Defined.
                   5856: 
                   5857: Sat Feb 11 00:05:55 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5858: 
                   5859:        * tm-sparc.h (FUNCTION_PROFILER): Make it really work.
                   5860:        (BLOCK_PROFILER, FUNCTION_BLOCK_PROFILER): New macros.
                   5861: 
                   5862:        * final.c (final): Use BLOCK_PROFILER at start of each basic block.
                   5863:        (final_start_function): Use FUNCTION_BLOCK_PROFILER if -a.
                   5864:        (end_final): New fn to output the block-profiling tables.
                   5865:        * toplev.c (profile_block_flag): Set if -a.
                   5866:        (compile_file): Call end_final.
                   5867: 
                   5868:        * combine.c (try_combine): Avoid combining in most cases if I3
                   5869:        has an inc or dec and I1 or I2 uses the same register.
                   5870: 
                   5871:        * tree.c (size_in_bytes, int_size_in_bytes): Use type's main variant.
                   5872: 
                   5873:        * c-typeck.c (actualparameterlist): Error if parm type is incomplete.
                   5874: 
                   5875:        * expr.c (expand_call): Ignore args that have incomplete type.
                   5876: 
                   5877: Fri Feb 10 02:26:02 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5878: 
                   5879:        * c-parse.y (case stmts): strip dummy NOP_EXPRs.
                   5880: 
                   5881:        * reload1.c (reload_as_needed): Clear reg_{has,is}_output_reload here,
                   5882:        (choose_reload_targets): not here.
                   5883: 
                   5884: Thu Feb  9 01:35:55 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5885: 
                   5886:        * output-sparc.c (output_mul_by_constant): Forget cc status.
                   5887: 
                   5888:        * stmt.c (assign_parms): Don't put volatile parms in regs.
                   5889: 
                   5890:        * vax.md (jlbs/jlbc recognizers): Move them before jbc/jbs recognizers.
                   5891: 
                   5892:        * cse.c (fold_rtx): Handle (EQ (COMPARE ...) (CONST_INT 0)).
                   5893: 
                   5894:        * c-typeck.c (default_conversion, digest_init): For static const
                   5895:        nonvolatile scalar variable, use its initial value if known.
                   5896: 
                   5897:        * expr.c (expand_expr: case COMPONENT_REF): If containing structure
                   5898:        comes out volatile, leave the component MEM volatile too.
                   5899: 
                   5900:        * hard-reg-set.h: Fix multi-word case macros to swallow semicolon.
                   5901: 
                   5902:        * c-typeck.c (default_conversion): In array=>ptr, volatility
                   5903:        of target type comes from TREE_THIS_VOLATILE, not TREE_VOLATILE.
                   5904: 
                   5905:        * reload1.c (forget_old_reload_1, choose_reload_targets):
                   5906:        New array reg_is_output_reload is converse of reg_has_output_reload.
                   5907:        forget_old_reload_1 needs both.
                   5908: 
                   5909: Wed Feb  8 01:26:24 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5910: 
                   5911:        * reload1.c (forget_old_reloads_1): New fn, guts of forget_old_reloads.
                   5912:        Do process a spill reg if it isn't used for reloading in this insn.
                   5913:        (forget_old_reloads): Deleted, replaced with note_stores.
                   5914:        (reload_as_needed): Undo Feb 1 change.
                   5915:        Call forget_old_reloads_1 on pseudos autoincremented and not reloaded.
                   5916: 
                   5917:        * c-typeck.c (convert_for_assignment): Handle variant types.
                   5918: 
                   5919:        * c-decl.c (lang_decode_option): -Wall implies -Wunused.
                   5920: 
                   5921: Tue Feb  7 01:32:28 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5922: 
                   5923:        * combine.c (try_combine): Don't try adding outputs to an asm_operands.
                   5924: 
                   5925:        * cse.c (CHEAPER): Don't ever let a hard reg get ahead of a pseudo.
                   5926: 
                   5927:        * stmt.c (fixup_gotos): Don't crash on undef label if THISBLOCK is 0.
                   5928: 
                   5929:        * c-decl.c (parmlist_tags_warning): New fn.
                   5930:        * c-parse.y (parmlist, parmlist_or_identifiers): Call it,
                   5931:        to warn about any tags defined inside the parmlist.
                   5932:        * c-decl.c (grokparms): Don't warn about ptr to incomplete type.
                   5933:        The new warning is better.
                   5934: 
                   5935: Mon Feb  6 01:11:36 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5936: 
                   5937:        * expr.c (store_constructor): Incorrect ALIGN arg in store_field calls.
                   5938: 
                   5939:        * c-parse.y (%union): Delete unused alternative.
                   5940: 
                   5941:        * c-decl.c (grokparms): Use main variant to test for ptr to incomplete.
                   5942: 
                   5943:        * c-decl.c (finish_enum): Delete superfluous init for `pair'.
                   5944: 
                   5945:        * cse.c (fold_rtx): Optimize X+0, X-0 in floating point.
                   5946:        Fix typo in PLUS case; omitted value to compare GET_MODE_CLASS against.
                   5947:        (equiv_constant): Allow CONST_DOUBLE.
                   5948: 
                   5949:        * cse.c: Optimize past if-statements that are known to fail.
                   5950:        (cse_insn): If condjump becomes uncond to end of this block,
                   5951:        set cse_skip_to_next_block.
                   5952:        (cse_basic_block): If that happens, ignore rest of block, and maybe
                   5953:        treat next block as part of this one (if tables have room).
                   5954:        Resume insn that starts next basic block to be scanned.
                   5955:        (cse_main): Make room for at least 500 qtys.
                   5956:        (cse_end_of_basic_block): Subroutine broken out of cse_main.
                   5957: 
                   5958:        * c-parse.y (hash, is_reserved_word): Rewrite: new hash technique.
                   5959: 
                   5960:        * c-decl.c (duplicate_decls): Be smart about proto vs nonproto mismatch
                   5961:        involving a function definition.
                   5962: 
                   5963: Sun Feb  5 17:31:12 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5964: 
                   5965:        * alliant.md (movdi): Typo in `fmoved'.
                   5966:        (ftruncsf2): Handle moving into fp reg.
                   5967: 
                   5968:        * jump.c (jump_optimize): Typo in testing PRESERVE_DEATH_INFO_REGNO_P.
                   5969: 
                   5970:        * reload1.c (choose_reload_targets): Move all death notes to the
                   5971:        output reload insn.
                   5972: 
                   5973:        * m68k.md (fix_truncsfsi2,fix_truncdfsi2): Use accurate rtl pattern.
                   5974: 
                   5975:        * loop.c (delete_insn_forces): Use presence of REG_RETVAL to check
                   5976:        for value-of-library-call insn.
                   5977: 
                   5978: Sat Feb  4 18:17:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5979: 
                   5980:        * integrate.c (expand_inline_function): Make addresses of stack
                   5981:        slots valid somehow.
                   5982: 
                   5983:        * tm-3b1.h (DIVSI3_LIBCALL, etc.): Define these macros; avoid gnulib.
                   5984: 
                   5985:        * expmed.c (store_bit_field): Avoid (subreg (mem)) when converting
                   5986:        VALUE1 to SImode.
                   5987: 
                   5988:        * jump.c (jump_optimize): Do delete USE and CLOBBER insns.
                   5989:        This is needed for proper jump optimization.
                   5990: 
                   5991:        * rtl.def (COMPARE): New code.
                   5992:        * *.md (compare and related patterns): Use COMPARE, not MINUS:VOID.
                   5993:        * loop.c (eliminate_biv, can_eliminate_biv_p): Likewise.
                   5994:        * cse.c (fold_rtx, fold_cc0, cse_insn):
                   5995:        * output-m88k.c (output_{f,}compare, output_store):
                   5996:        * output-sparc.c (strict_single_insn_op_p, single_insn_src_p, safe_insn_src_p):
                   5997:        * combine.c (subst):
                   5998:        * jump.c (jump_back_p):
                   5999: 
                   6000: Fri Feb  3 18:34:27 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6001: 
                   6002:        * output-i386.c (notice_update_cc): If arith insn sets the cc's,
                   6003:        discard all remnants of previous cc value and flags.
                   6004: 
                   6005:        * sparc.md (ashiftrt mem by 24): Fix typo `a1'.
                   6006: 
                   6007: Thu Feb  2 14:55:44 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6008: 
                   6009:        * output-sparc.c (output_mul_insn): Clear the CC status.
                   6010: 
1.1.1.13  root     6011: Wed Feb  1 20:01:54 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6012: 
                   6013:        * Version 1.33 released.
                   6014: 
                   6015:        * reload1.c (reload_as_needed): On entering new basic block,
                   6016:        if it didn't need reload regs, forget all inherited contents of those.
                   6017: 
                   6018:        * tm-alliant.h (NOTICE_UPDATE_CC): Floating moves don't set the cc's.
                   6019:        Also delete the clauses and tests for FPA regs. 
                   6020: 
                   6021: Tue Jan 31 21:51:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6022: 
                   6023:        * config.gcc: Handle convex-c1, convex-c2.
                   6024:        * tm-convex1.h, tm-convex2.h: New files that include tm-convex.h.
                   6025:        * tm-convex.h: Define switches -mnoc1, -mnoc2.
                   6026: 
                   6027:        * config.gcc: rename `nofp' to `nfp', to match the file names.
                   6028: 
                   6029: Mon Jan 30 22:12:15 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6030: 
                   6031:        * output-sparc.c (output_delay_insn): Extract the operands,
                   6032:        call alter_subreg, constrain_operands and NOTICE_UPDATE_CC.
                   6033:        So callers other than output_eager_then_insn don't lose.
                   6034:        (output_eager_then_insn): No need to do that stuff.
                   6035: 
                   6036:        * symout.c (symout_block_symbols): Handle (MEM (REG)) for
                   6037:        variable-sized arrays.
                   6038: 
                   6039:        * tm-encore.h (ASM_SPEC): Always pass -j; avoid jump-range lossage.
                   6040: 
                   6041: Sun Jan 29 17:06:26 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6042: 
                   6043:        * alliant.md: Fix refs to CONST_DOUBLEs to use CONST_DOUBLE_{HIGH,LOW}.
                   6044: 
                   6045:        * combine.c (subst): (minus (zero_extend ...) (const_int ...)) opt.
                   6046:        now limited to within the context of (set (cc0) ...).
                   6047: 
                   6048: Sat Jan 28 14:26:08 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6049: 
                   6050:        * cse.c (fold_cc0): Missing `&' extracting CONST_DOUBLEs.
                   6051:        (fold_rtx): Don't put CONST_DOUBLEs together into a (CONST (PLUS...)).
                   6052: 
                   6053:        * output-convex.c (gen_cmp): Recognize CONST_DOUBLE as a constant.
                   6054: 
                   6055:        * tree.c (build_real_from_int_cst): Typo in REAL_ARITHMETIC case.
                   6056: 
                   6057:        * Makefile (bootstrap2): Don't use bootstrap3 as subroutine.
                   6058: 
                   6059:        * varasm.c (force_const_mem): Put the CONST_DOUBLE on the chain
                   6060:        if its MEM is stored in it; so it can be cleared at end of function.
                   6061: 
                   6062:        * stmt.c (emit_case_nodes): Put a compare before each cond-jump.
                   6063:        Two cond-jumps after one cond is invalid and makes cse produce garbage.
                   6064: 
                   6065: Fri Jan 27 01:05:01 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6066: 
                   6067:        * tm-sun2.h (CPP_SPEC): Define __HAVE_68881__ only if -m68881.
                   6068: 
                   6069:        * c-decl.c (start_decl): Don't expand_decl if DECL already has rtl.
                   6070:        (grokparms): If just declaring fcn, incomplete parm type is just
                   6071:        a warning, and don't discard the specified type.
                   6072: 
                   6073:        * expmed.c (expand_divmod): Be smarter about not clobbering args
                   6074:        with intermediate results; one mem can clobber another, and a reg
                   6075:        can clobber a mem.
                   6076: 
                   6077:        * tm-i386.h (FUNCTION_PROFILER): Use LPREFIX.  May actually work now.
                   6078:        * tm-i386gas.h: Include tm-bsd386.h, not tm-att386.h.
                   6079:        This means changing asm syntax.
                   6080:        #undef DBX_NO_XREFS and DBX_CONTIN_LENGTH.
                   6081: 
                   6082:        * sparc.md (eager branch peepholes): Don't forget 2nd arg to
                   6083:        safe_insn_src_p.
                   6084:        Don't print warnings.
                   6085:        * output-sparc.c: (strict_single_insn_op_p): Return 0 for floating
                   6086:        REG or MEM, since copying that may take 2 insns.
                   6087:        (operands_satisfy_eager_branch_peephole): require delay insn to
                   6088:        be strict_single_insn_op_p as well as safe_insn_src_p.
                   6089:        (operand_clobbered_before_used_after): Don't print warnings.
                   6090: 
                   6091:        * varasm.c (decode_rtx_const): Clear entire structure incl. gaps.
                   6092:        Avoids spurious hash mismatches.
                   6093:        (force_const_mem): If CONST_DOUBLE, store its CONST_DOUBLE_MEM field.
                   6094:        Also look in that field rather than hashing, to save time.
                   6095: 
                   6096:        * c-typeck.c (build_c_cast): If value is literal, mark NOP_EXPR as so.
                   6097:        (store_init_value): Change error msg.
                   6098: 
                   6099:        * c-decl.c (duplicate_decls): Classify prototype vs nonprototype
                   6100:        mismatches better.
                   6101: 
                   6102:        * tm-3b1.h: Fix comment.
                   6103: 
                   6104: Wed Jan 25 12:46:50 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6105: 
                   6106:        * Makefile (cleanlinks): Use -f.
                   6107: 
                   6108: Tue Jan 24 17:54:16 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6109: 
                   6110:        * cse.c (canon_hash): Fix paren error in last change.
                   6111: 
                   6112:        * varasm.c (immed_real_const_1): Missing arg to bcmp.
                   6113: 
                   6114: Mon Jan 23 02:43:45 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6115: 
                   6116:        * stor-layout.c (layout_type): BLKmode elts force array to be BLKmode.
                   6117: 
                   6118:        * genpeep.c, genoutput.c, genemit.c: Put `#include "real.h"' in output.
                   6119: 
                   6120:        * stmt.c (expand_expr_stmt): No "no effect" warning for error-mark.
                   6121: 
                   6122:        * varargs.h: Rename implicit arg name to __builtin_va_alist
                   6123:        which triggers code in assign_parms.  Does this really matter?
                   6124: 
                   6125:        * sparc.md (sne): New define_expand.
                   6126:        (seq recognizers): Handle sne as well.
                   6127:        * output-sparc.c ({strict_,}single_insn_src_p):
                   6128:        Some NEG and MINUS insns are actually 2 asm insns.
                   6129:        (safe_insn_src_p): No floating arith is safe; they can trap.
                   6130:        (eq_or_neq): New fn, for seq/sne recognizers.
                   6131: 
                   6132:        * c-decl.c (grokdeclarator, size of array type):
                   6133:        Strip from SIZE any NOP_EXPRs that don't change anything.
                   6134: 
                   6135:        * reload.c, recog.c: Include real.h so constraint macros can examine
                   6136:        CONST_DOUBLEs.
                   6137: 
                   6138: Sun Jan 22 04:12:54 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6139: 
                   6140:        * c-decl.c (init_decl_processing): Define __builtin_saveregs.
                   6141:        * tree.h: likewise.
                   6142:        * expr.c (expand_builtin): Handle it.
                   6143: 
                   6144:        * tm-sparc.h: Define TARGET_EAGER and -meager.
                   6145:        * sparc.md (eager branch peepholes): Reenable, but test TARGET_EAGER.
                   6146:        Change fb insns to use %F.  Delete `,a' from some of them.
                   6147:        * jump.c (jump_optimize): Don't delete USE and CLOBBER insns.
                   6148: 
                   6149:        * xm-vms.h (const): Define it as empty.
                   6150: 
                   6151:        * make-cccp.com: Move the rename of cexp_tab.c.
                   6152:        Compile cccp.c with no macro definitions.
                   6153: 
                   6154:        * cccp.c (main): VMS conditional for setting max_include_len.
                   6155: 
                   6156: Sat Jan 21 12:53:00 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6157: 
                   6158:        * varargs.h (va_start): On sparc, call __builtin_saveregs.
                   6159:        Delete the old conditional that used va-sparc.h.
                   6160:        Rename macros and locals to start with two underscores.
                   6161:        * va-sparc.h: File deleted.
                   6162: 
                   6163:        * c-decl.c (store_parm_decls): Initialize OTHERS.
                   6164: 
                   6165:        * stmt.c (assign_parms): Obey layout_decl.
                   6166: 
                   6167: Fri Jan 20 02:19:32 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6168: 
                   6169:        * cse.c (fold_rtx): For SYMBOL_REF and LABEL_REF, mask address
                   6170:        to 16 bits.
                   6171: 
                   6172:        * tree.h (NUM_TREE_CODES): NUM_TREE_CODE renamed.
                   6173: 
                   6174: Thu Jan 19 13:53:24 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6175: 
                   6176:        * c-typeck.c (mark_addressable): For global reg var, report error.
                   6177:        Now returns an int; value of 0 means caller should fail.
                   6178:        All calls (in this file) changed.
                   6179: 
                   6180:        * stor-layout.c (layout_decl): Don't let an more than 1 word
                   6181:        of any aggregate go in any 1 register.  (Needed for machines whose
                   6182:        integer regs are 64 bits).
                   6183: 
                   6184:        * tm-convex.h, xm-convex.h, convex.md, output-convex.c: new files.
                   6185: 
                   6186:        * expr.c (convert_move): Use extendqidi2, etc. for converting
                   6187:        small ints to double ints.  Use zero_extendsidi2 rather than
                   6188:        clearing the high half.
                   6189: 
                   6190: Wed Jan 18 01:20:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6191: 
                   6192:        * varasm.c (make_decl_rtl): If global `register' decl is invalid,
                   6193:        make ordinary non-register rtl.
                   6194: 
                   6195:        * output-sparc.c (operand_clobbered_before_used_after): new fn.
                   6196:        (reg_clobbered_p, safe_insn_src_p): New fns.
                   6197:        (single_insn_src_p): Treat constants all as ok, even though not
                   6198:        always literally so.  Also accept some SIGN_EXTENDs and ZERO_EXTENDs.
                   6199:        (strict_single_insn_src_p): New fn, like above but is strict
                   6200:        about constants and constant memory addresses.
                   6201:        (relop): New fn.
                   6202:        (output_move_double): Don't make a MEM, and don't use %m.
                   6203:        (output_delayed_branch): New name for output_delay_insn.
                   6204:        Now handle non-small constant operands.
                   6205:        Avoid duplicate loads of g1 for constant addresses.
                   6206:        Use recog_operand directly for output of the delay insn.
                   6207:        (output_delay_insn): Now a completely new fn.
                   6208:        (output_eager_then_insn, next_real_insn_no_labels): New fns.
                   6209:        (operands_satisfy_eager_branch_peephole): New fn.
                   6210: 
                   6211:        * sparc.md: New peepholes for testing a recently used operand.
                   6212:        New peepholes for delayed branches, incl. conditional ones.
                   6213:        ** Some of them commented out because they seem not to work.
                   6214:        (andcc recognizer): Fix typo, missing %.
                   6215:        (bgt): Change bgt to bg in output.
                   6216:        (reversed jumps): Replace with one pattern using match_operand.
                   6217:        It uses %F to output the condition.
                   6218:        (movsi): For round-valued immed const, use just a sethi.
                   6219:        For other immed, use explicit sethi and or.
                   6220:        (movhi, movqi): use `move' for reg source or small int source.
                   6221:        For other immed, use explicit sethi and or.
                   6222:        (movsi, etc.):  Handle all constant addresses like SYMBOL_REFs.
                   6223:        (movsf): Delete never-used duplicate code for constant addresses.
                   6224:        (addsi3, subsi3, cse'd multiply): Use sethi and or, rather than set.
                   6225:        (andsi3, iorsi3, xorsi3): Likewise.
                   6226:        (jump): Make an annulled branch.
                   6227: 
                   6228:        * tm-sparc.h (PROMOTE_PROTOTYPES): Define this.
                   6229:        (GO_IF_LEGITIMATE_ADDRESS): Now accept all constant addresses;
                   6230:        also cleaned up.
                   6231:        (NOTICE_UPDATE_CC): Don't change the G1 status when storing in memory.
                   6232:        Assume all PARALLEL insns are peepholes.
                   6233:        (PRINT_OPERAND): New codes C and N for outputting conditions,
                   6234:        either forward or reversed.  Also F for reversed floating.
                   6235: 
                   6236:        * jump.c (delete_for_peephole): New function to delete range of insns.
                   6237:        * genpeep.c (gen_peephole): Output code to use this.
                   6238: 
                   6239:        * Makefile (install): Fix typo, had $${name} for $${file}.
                   6240: 
                   6241: Tue Jan 17 00:00:12 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6242: 
                   6243:        * i386.md (ashlsi3): Use addl or leal for special cases.
                   6244: 
                   6245:        * c-decl.c (grokdeclarator): Make a non-global VAR_DECL public
                   6246:        if it is external.
                   6247: 
                   6248:        * masm386.c: Clean up formatting.
                   6249: 
                   6250:        * cse.c (fold_rtx): Typo simplifying x|0 or x^0
                   6251:        when the 0 comes second.
                   6252: 
                   6253:        * expmed.c (store_fixed_bit_field): For halfwords, verify that
                   6254:        the field fits in an *aligned* halfword.
                   6255:        (extract_fixed_bit_field): likewise.
                   6256: 
                   6257:        * expmed.c (store_split_bit_field): New arg align, passed in from
                   6258:        store_fixed_bit_field and passed back to it.
                   6259:        (extract_split_bit_field): likewise.
                   6260: 
                   6261:        * expr.c: Reinsert changes from Jan 2, mysteriously deleted Jan 3.
                   6262:        Also changes from Dec 23, Dec 28 and Dec 29.
                   6263: 
                   6264:        * tm-i386.h: Likewise for changes from Dec 30.
                   6265: 
                   6266:        * c-typeck.c (build_component_ref): If field's type is error-mark,
                   6267:        return an error-mark.
                   6268: 
                   6269: Mon Jan 16 14:16:54 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6270: 
                   6271:        * genpeep.c (main): Output code to exit early if insn is followed
                   6272:        by a barrier.
                   6273:        (gen_peephole): Reject barriers just like labels.
                   6274: 
                   6275:        * stmt.c (do_jump_if_equal): New arg UNSIGNEDP, for emit_cmp_insn.
                   6276:        Caller changed.  Now static.
                   6277: 
                   6278:        * final.c (final): Set INSN_DELETED_P in insns when output.
                   6279: 
                   6280:        * final.c (final): Re-set BODY if peephole does anything.
                   6281: 
                   6282:        * c-decl.c (grokparms): Ignore anything but PARM_DECLs in the list.
                   6283:        (store_parm_decls): If we had a prototype, separate out anything other
                   6284:        than a PARM_DECL declared in it, and pushdecl those at the end,
                   6285:        after DECL_ARGUMENTS is set.
                   6286: 
                   6287:        * stmt.c (expand_end_case): Do stack adjusts after computing index.
                   6288: 
                   6289:        * expr.c (store_one_arg): Handle padding for case of BLKmode
                   6290:        for which space was preallocated.
                   6291: 
                   6292:        * integrate.c (copy_rtx_and_substitute): When copying asm insn,
                   6293:        preserve sharing of the input-operand vectors.
                   6294:        (expand_inline_function): Clear {orig,copy}_asm_operands_vector
                   6295:        to make that mechanism work.
                   6296:        (save_for_inline, copy_for_inline): Likewise.
                   6297: 
                   6298:        * stmt.c (expand_asm_operands): Reject `+' in constraints.
                   6299:        Every output constraint requires `='; inputs reject it.
                   6300: 
                   6301:        * stmt.c (expand_function_end): Arg to fixup_gotos was missing.
                   6302: 
                   6303: Sun Jan 15 00:28:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6304: 
                   6305:        * cccp.c, gcc.c (main): Handle SIGPIPE.
                   6306:        (pipe_closed): New fn; report suitable fatal error.
                   6307: 
                   6308:        * loop.c (loop_optimize): Initialize moved_once.
                   6309: 
                   6310:        * gcc.c (do_spec): Don't call `execute' if value != 0.
                   6311:        Delete redundant second call to do_spec_1.
                   6312: 
                   6313:        * toplev.c (compile_file): Make declared-but-not-defined warnings
                   6314:        only if -Wunused.
                   6315: 
                   6316:        * stmt.c (emit_case_nodes): Fix typo setting gen_ble_pat.
                   6317: 
                   6318:        * tm-sparc.h ({U,}MODSI3_LIBCALL): Name was wrong.
                   6319: 
                   6320:        * gcc.c (env_exec_prefix refs): Don't try to open via it if it's null.
                   6321: 
                   6322:        * output-sparc.c (output_store, output_load_{fixed,floating}):
                   6323:        Fixed confusions between the mem ref and its address.
                   6324: 
                   6325:        * cse.c (canon_hash): global_regs has entries only for hard regs.
                   6326:        * flow.c (insn_dead_p, mark_set_p, mark_used_regs): Likewise.
                   6327: 
                   6328:        * cse.c (fold_rtx): More simplifications for MULT, IOR, AND, XOR
                   6329:        DIV and shifts with one arg 0 or 1.
                   6330: 
                   6331: Sat Jan 14 11:41:11 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6332: 
                   6333:        * c-typeck.c (build_array_ref): If pedantic, check for regdecl arrays.
                   6334: 
                   6335:        * fixincludes: Make all subdirs in advance, so no need for `dirname'.
                   6336: 
                   6337:        * genpeep.c (gen_peephole): Delete code to increment LABEL_NUSES;
                   6338:        instead, clear JUMP_LABEL for any jumps being deleted.
                   6339:        No need to test INSN1 for being a label, since not called then.
                   6340:        [If any of the matched insns is a JUMP_INSN, set want_jump,
                   6341:        and in that case make the matched peephole a JUMP_INSN itself.]
                   6342:        That's in an #if 0 now; it's good in jump, but not in final.
                   6343: 
                   6344:        * jump.c (jump_optimize): Don't do peepholes here.
                   6345:        * final.c (final): Do them here.
                   6346: 
                   6347:        * jump.c (jump_optimize): In optimizing `if (foo) bar; else break;',
                   6348:        don't try to invert anything but a standard-looking conditional jump.
                   6349: 
                   6350:        * jump.c (jump_optimize): Do peepholes on ALL BUT the first pass.
                   6351: 
                   6352:        * gcc.c (env_exec_prefix): New var used like user_exec_prefix
                   6353:        but set from envvar GCC_EXEC_PREFIX.
                   6354: 
                   6355: Fri Jan 13 13:21:59 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6356: 
                   6357:        * genpeep.c (gen_peephole): Test INSN1 for a label at the very start,
                   6358:        then test following insns at the end of the loop.
                   6359: 
                   6360:        * sparc.md (call recognizers): do CC_STATUS_INIT, for %g1.
                   6361: 
                   6362: Thu Jan 12 02:13:49 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6363: 
                   6364:        * varasm.c (make_decl_rtl): Recognize more error cases for reg vars:
                   6365:        BLKmode, or initializer given.
                   6366:        Distinguisn missing asm from invalid name.
                   6367: 
                   6368:        * expr.c (expand_call): Never return 0; return const0_rtx instead.
                   6369:        This makes expand_expr more uniform.
                   6370: 
                   6371:        * c-decl.c (grokparms): For ptr to incomplete type, just warn;
                   6372:        don't change the parm's type.
                   6373: 
                   6374:        * stmt.c (expand_return): Set RETVAL_RHS so as to recognize
                   6375:        tail-recursive fcn returning void.
                   6376:        Unconditionally test value of expand_expr for being a REG.
                   6377: 
                   6378:        * reload.c (find_reloads): Don't process insns that have
                   6379:        no constraint alternatives.  No more need for have_constraints.
                   6380: 
                   6381:        * recog.c (constrain_operands): New local var nalternatives.
                   6382:        Don't bother checking the insn if nalternatives is 0.
                   6383: 
                   6384: Wed Jan 11 01:27:48 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6385: 
                   6386:        * Implement global register decls.
                   6387: 
                   6388:        * varasm.c (make_decl_rtl): Handle global register vars.
                   6389:        (make_function_rtl): Set function_defined: after 1st function dfn.
                   6390:        (assemble_variable): Ignore global register vars.
                   6391: 
                   6392:        * c-decl.c (grokdeclarator): Don't reject global register decls.
                   6393:        (builtin_function): Use make_decl_rtl, not make_function_rtl,
                   6394:        to avoid setting function_defined.
                   6395: 
                   6396:        * regclass.c (init_reg_class{,_1}): Init and process global_regs.
                   6397:        They are fixed, and call-clobbered.
                   6398: 
                   6399:        * flow.c (insn_dead_p): Storing one of global_regs is never dead.
                   6400:        (mark_used_regs, mark_set_1): A global reg is never dead.
                   6401: 
                   6402:        * cse.c (canon_hash): Consider global regs volatile.
                   6403: 
                   6404: 
                   6405:        * expr.c (do_jump): Know how to invert jumps which are sequences.
                   6406: 
                   6407:        * dbxout.c, symout.c, final.c: On USG, use our own stab.h.
                   6408: 
                   6409:        * tm-i386gas.h: New file for GAS on sysV (with DBX debugging info).
                   6410: 
                   6411:        * m68k.md (bfchg and bfins patterns): Make # alternatives uniform.
                   6412:        * alliant.md: Likewise; also in movdf patterns.
                   6413: 
                   6414:        * genoutput.c (output_epilogue): Spurious `break' disabled
                   6415:        error check for mismatched # of alternatives.
                   6416:        (output_epilogue, scan_operands): Errors in input are not fatal.
                   6417: 
                   6418:        * flow.c (regno_uninitialized): Avoid crash if no basic blocks.
                   6419: 
                   6420:        * sparc.md (move insns): Delete special patterns that handled
                   6421:        symbolic constant addresses.  The main move patterns now do this.
                   6422:        * output-sparc.c (output_store, output_load_{fixed,floating}):
                   6423:        Subroutines to do the work for this; has the code from those
                   6424:        special patterns.  Also fixed bugs in testing against cc_status.mdep.
                   6425: 
                   6426:        * output-sparc.c (output_delay_insn): Clear the CC status.
                   6427:        This is necessary for %g1 in the case of a call insn.
                   6428: 
                   6429:        * tm-i386.h (REG_CLASS_CONTENTS): INDEX_REGS is now all but ESP.
                   6430:        (REGNO_REG_CLASS): Corresponding change.
                   6431:        (REG_CLASS_FROM_LETTER): Eliminate `x' letter since not used.
                   6432: 
                   6433:        * optabs.c (emit_cmp_insn): New arg ALIGN, used for BLKmode.
                   6434:        All callers changed.
                   6435:        Pass alignment (as rtx) as 4th arg to cmpstr gen functions.
                   6436:        Use cmpstrhi if available.
                   6437:        * expr.c (compare): Only this call passes a nonzero ALIGN.
                   6438: 
                   6439:        * expr.c (emit_push_insn, emit_block_move): Pass alignment (as rtx)
                   6440:        as 4th arg to movstr gen functions.
                   6441: 
                   6442: Tue Jan 10 23:43:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6443: 
                   6444:        * stor-layout.c (layout_type): Use BLKmode, if a struct isn't
                   6445:        aligned well enough for a scalar mode.
                   6446: 
                   6447:        * expr.c (expand_expr): For static CONSTRUCTOR, ensure memory
                   6448:        address is made valid.
                   6449: 
                   6450:        * genpeep.c (match_rtx): For MATCH_OPERATOR, set max_opno, n_operands.
                   6451: 
                   6452: Mon Jan  9 17:07:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6453: 
                   6454:        * varasm.c (output_constant): Split strings every 2000 chars.
                   6455: 
                   6456:        * stmt.c (expand_end_case): Test bkwds, handling constant switch arg.
                   6457: 
                   6458: Fri Jan  6 09:11:20 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6459: 
                   6460:        * output-sparc.c (output_delay_insn): Add parens to first if test.
                   6461:        (output_move_double): Turn addr for `sethi' into MEM for %m.
                   6462: 
                   6463:        * c-typeck.c (convert_for_assignment): move test for ERROR_MARK.
                   6464: 
                   6465:        * c-parse.y (unary_expr): Allow cast_expr as arg of unary op.
                   6466: 
                   6467:        * stmt.c (expand_decl): Don't abort if FUNCTION_DECL lacks rtl;
                   6468:        assemble_variable is called after this.
                   6469: 
                   6470:        * c-parse.y (primary -> identifier): Separate case for undeclared
                   6471:        identifier outside of functions; avoids confusing error msgs.
                   6472: 
                   6473: Thu Jan  5 01:24:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6474: 
                   6475:        * Makefile (install): Ignore errors in all `if' commands.
                   6476:        Create $(libdir) if nec.
                   6477: 
                   6478:        * Makefile (insn-*.[ch]): Put in empty commands.  May help Ultrix Make.
                   6479: 
                   6480:        * stmt.c (emit_case_nodes): New arg UNSIGNEDP says do unsigned jumps.
                   6481:        Arg INDEX is an rtx, not a tree.
                   6482:        (expand_end_case): Pass that arg.
                   6483:        (node_has_{low,high}_bound): check for overflow, avoid confusion.
                   6484: 
                   6485: Wed Jan  4 02:24:21 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6486: 
                   6487:        * sparc.md (movdi, movdf): Use `&' constraint when loading reg from;
                   6488:        otherwise can lose on (set (reg X) (mem (plus (reg X) (reg X+1)))).
                   6489: 
                   6490:        * expr.c (emit_push_insn): For memory scalar partially going in regs,
                   6491:        copy each word to reg before pushing.  Avoids memory-to-memory move.
                   6492:        Make the displaced address valid.
                   6493:        Also delete unfinished STACK_OFFSET variable.
                   6494: 
                   6495:        * c-parse.y (check_newline): Read just one #-directive and return.
                   6496:        This prevents lossage when toplev.c calls it to get the main input file
                   6497:        name, and it gets a following #ident as well.
                   6498: 
                   6499:        * c-decl.c (lang_decode_option): Set warn_cast_qual for -Wcast-qual.
                   6500:        * c-typeck.c (build_c_cast): Issue some warnings if set.
                   6501: 
                   6502:        * tm-3b1.h (ASM_OUTPUT_CASE_LABEL): Missing `;'.
                   6503: 
                   6504: Tue Jan  3 18:07:31 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6505: 
                   6506:        * expr.c (emit_library_call): Do force_operand on each operand
                   6507:        if it isn't a REG, MEM or constant.
                   6508:        Do this, or mode conversions, earlier, before loading any hard regs.
                   6509: 
                   6510:        * m68k.md (addsi3) [SGS]: Put a zero displacement in the `lea'.
                   6511: 
                   6512:        * c-typeck.c (default_conversion): Don't lose `const' or `volatile'
                   6513:        when converting array type to pointer.
                   6514: 
                   6515: Mon Jan  2 01:18:01 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6516: 
                   6517:        * expmed.c (store_bit_field, store_fixed_bit_field): New arg,
                   6518:        alignment in bytes the structure is known to have.
                   6519:        (store_fixed_bit_field): Handle working in halfwords,
                   6520:        in case the pointer isn't known to have fullword alignment.
                   6521:        * expmed.c (extract_bit_field, extract_fixed_bit_field): likewise.
                   6522:        (extract_bit_field): fix unsignedp arg to extract_fixed_bit_field.
                   6523:        * expr.c (store_field): New arg, passed to {store,extract}_bit_field
                   6524:        (expand_assignment, store_constructor): Pass that arg.
                   6525:        (expand_expr): Pass new arg to extract_bit_field.
                   6526: 
                   6527:        * m68k.md (casesi_2 recognizer): Offset always 6 for 3b1.
                   6528: 
                   6529:        * c-typeck.c (convert_for_assignment): Strip from rhs no-op NOP_EXPRs
                   6530:        put on by build_c_cast (to make the result not an lvalue).
                   6531:        (build_modify_expr, build_compound_expr): likewise.
                   6532:        (build_conditional_expr): likewise.
                   6533:        (actualparameterlist, build_function_call): likewise.
                   6534:        (default_conversion, truthvalue_conversion): likewise.
                   6535: 
                   6536:        * loop.c (move_movables): If reg has moved out of one loop,
                   6537:        divide `savings' by 2.
                   6538: 
                   6539: Sun Jan  1 03:00:07 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6540: 
                   6541:        * c-typeck.c (truthvalue_conversion): Distribute the conversion
                   6542:        into the arms of a COND_EXPR.
                   6543: 
                   6544:        * cse.c (fold_rtx): Don't fold a MINUS with VOIDmode
                   6545:        into a symbolic constant--it's incorrect.
                   6546: 
                   6547:        * cse.c (cse_insn): If SRC is a subreg with known value, simplify it.
                   6548: 
                   6549:        * integrate.c (copy_rtx_and_substitute): Allow a ref to a part of
                   6550:        MEM parm whose actual parm is a reg, provided it refs
                   6551:        the low part of the MEM.
                   6552:        (function_cannot_inline_p): Don't inline functions which have
                   6553:        aggregate parameters and take their addresses.  This could produce
                   6554:        refs to non-low-parts, which copy_rtx_and_substitute can't handle.
                   6555: 
                   6556:        * c-typeck.c (build_modify_expr): If lhs is COND_EXPR,
                   6557:        make a COMPOUND_EXPR to ensure the rhs is computed before the branch.
                   6558: 
                   6559:        * Implement -pipe.
                   6560:        * gcc.c (do_spec_1): `|' is now a special delimiter
                   6561:        which goes in the argbuf.
                   6562:        When a newline is preceded by a `|', delete it if no -pipe.
                   6563:        Otherwise, don't execute yet, and keep scanning.
                   6564:        (do_spec): At end, if we have stuff with no newline, execute it.
                   6565:        (handle_braces): Implement %{|foo:...}.
                   6566:        (execute): If argbuf contains some `|'s, run several processes
                   6567:        and pipe them together.
                   6568:        (pexecute): new subroutine to make one of the processes.
                   6569:        (find_exec_file): new fn to search for program to execute.
                   6570:        (record_temp_file): new arg FAIL_ONLY.
                   6571:        (store_arg): 2nd arg == 3 means delete file on failure.
                   6572:        This is used for output files.
                   6573:        (delete_temp_files): delete certain files only if fail.
                   6574: 
                   6575:        * cccp.c (include_defaults): /usr/include before /usr/local/include.
                   6576: 
                   6577:        * recog.c (asm_noperands): 1-off in loop checking CLOBBERS
                   6578:        when no output operands and PARALLEL.
                   6579: 
                   6580:        * expmed.c (negate_rtx): Sign-extend the high bits rather than clear.
                   6581: 
                   6582:        * cse.c (fold_rtx): fold negation of real values.
                   6583:        (fold_cc0): fold comparisons on real values.
                   6584: 
                   6585:        * Makefile (install): Use $(INSTALL) for gcc.1 and files in USER_H.
                   6586: 
                   6587:        * Handle floating-point problems for cross-compilation.
                   6588: 
                   6589:        * real.h (CONST_DOUBLE_LOW, etc.): new macros to access CONST_DOUBLE.
                   6590:        * varasm.c (immed_double_const, decode_rtx_const): Use these.
                   6591:        ({force,clear}_const_double_mem): Likewise.
                   6592:        * output-*.c (output_move_double): Use these.
                   6593:        * output-m68k.c (standard_{68881,sun_fpa}_constant_p): Likewise.
                   6594:        * tm-*.h (PRINT_OPERAND): Use these.
                   6595:        * output-i386.c (print_operand): Use these.
                   6596:        * final.c (output_addr_const): Likewise.
                   6597:        * emit-rtl.c (gen_rtx): Delete special code for CONST_DOUBLE.
                   6598: 
                   6599:        * real.h (union real_extract): Portable type for storing real as ints.
                   6600:        * varasm.c (immed_double_const, decode_rtx_const): Use these.
                   6601: 
                   6602:        * varasm.c (immed_real_const_1, decode_rtx_const):
                   6603:        Don't assume REAL_VALUE_TYPE is 2 ints long.
                   6604:        * emit-rtl.c (init_emit_once): Likewise.
                   6605: 
                   6606:        * real.h (REAL_VALUE_TYPE): Define as `double' if not defined.
                   6607:        (REAL_IS_NOT_DOUBLE): Define this if default REAL_VALUE_TYPE not used.
                   6608:        (REAL_VALUES_EQUAL, REAL_VALUES_LESS): Define, if not already defined.
                   6609:        (REAL_VALUE_LDEXP, REAL_VALUE_ATOF): Likewise.
                   6610:        * tree.h (struct tree_real_cst): Use REAL_VALUE_TYPE for the value.
                   6611: 
                   6612:        * rtl.c (init_rtl): Increase length of CONST_DOUBLE if REAL_VALUE_TYPE
                   6613:        needs more space.  Change the rtx_format element to match.
                   6614:        * varasm.c (immed_real_const_1): 1st arg now has REAL_VALUE_TYPE.
                   6615:        (force_const_mem): Assume a CONST_DOUBLE contains REAL_VALUE_TYPE.
                   6616:        * emit-rtl.c (init_emit_once): Likewise.
                   6617:        And use REAL_VALUE_ATOF to get a floating zero.
                   6618:        * optabs.c (expand_float): Use REAL_VALUE_TYPE, REAL_VALUE_LDEXP.
                   6619:        * c-parse.y (yylex): Likewise, and use REAL_VALUE_ATOF.
                   6620:        * fold-const.c (split_tree): Don't accept REAL_CSTs.
                   6621:        (combine, fold_convert, fold): Use REAL_ARITHMETIC if defined;
                   6622:        else don't fold reals if they are not doubles.
                   6623:        * tree.c (build_real_from_int_cst): Likewise.
                   6624:        * print-tree.c (dump) [REAL_IS_NOT_DOUBLE]: output float value
                   6625:        in hex, since we don't know how to do it right.
                   6626: 
                   6627: Sat Dec 31 14:15:13 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6628: 
                   6629:        * optabs.c (init_optabs): Handle new macros {U,}MULSI3_LIBCALL,
                   6630:        DIVSI3_LIBCALL, MODSI3_LIBCALL.
                   6631:        * tm-sparc.h: Define {,U}{MUL,DIV,MOD}SI3 to call Sun's library direct.
                   6632: 
                   6633:        * tm-sun3-nfp.h, tm-sun3-fpa.h: New files.
                   6634: 
                   6635: Fri Dec 30 00:14:36 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6636: 
                   6637:        * cccp.c (main): Certain envvars specify a file to write deps info to.
                   6638: 
                   6639:        * toplev.c (compile_file): Warn about undefined fns declared static.
                   6640: 
                   6641:        * m68k.md (casesi_2 recognizer) [SGS] RTX_INTEGRATED_P test backwards.
                   6642:        * tm-3b1.h (ASM_OUTPUT_CASE_LABEL): Likewise.  Also missing `\'.
                   6643: 
                   6644:        * reload1.c (count_occurrences): New function.
                   6645:        (choose_reload_targets): Don't delete a reload if the same reg
                   6646:        is used elsewhere in the current insn.
                   6647:        (delete_output_reload): code split out from choose_reload_targets.
                   6648: 
                   6649:        * c-typeck.c (build_c_cast): Always put on some operator,
                   6650:        so the cast is never an lvalue for strict ANSI.
                   6651: 
                   6652:        * c-typeck.c (initializer_constant_valid_p): Don't depend on
                   6653:        distinction between NOP_EXPR and CONVERT_EXPR.
                   6654: 
                   6655:        * c-convert.c: Fns reordered; new comments.
                   6656: 
                   6657:        * fold-const.c (fold): If simplifying a NOP_EXPR within a BIT_AND_EXPR,
                   6658:        return a NOP_EXPR.
                   6659:        New var TYPE holds type of expr.
                   6660: 
                   6661:        * c-parse.y (expr_no_commas): Split off cast_expr and unary_expr,
                   6662:        to reject `sizeof (int) foo'.
                   6663: 
                   6664:        * toplev.c (main): Treat plain `-' as input filename.
                   6665: 
                   6666:        * final.c (final): If an insn's output routine returns 0,
                   6667:        it means to output the deleted compare insn immediately preceding.
                   6668: 
                   6669:        * m68k.md (branch insns): Use 0 as 3rd arg for OUTPUT_JUMP
                   6670:        rather than explicitly clearing the overflow flag.
                   6671: 
                   6672:        * tm-i386.h (OUTPUT_JUMP): Really use NO_OV; don't abort.
                   6673:        * i386.md (branch insns): Put real data (sometimes 0) in 3rd arg
                   6674:        of OUTPUT_JUMP.  0 means preceding test may not be deleted.
                   6675:        (lea pattern): Clear the cc's.
                   6676:        * output-i386.c (notice_update_cc): various arith insns set the cc's.
                   6677: 
                   6678: Thu Dec 29 13:22:01 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6679: 
                   6680:        * stmt.c (expand_decl_init): Do nothing for static decls.
                   6681: 
                   6682:        * reload.c (find_reloads_address{,_1}): Return 1 iff entire arg
                   6683:        was reloaded as a whole, else 0.
                   6684:        (find_reload): If find_reloads_address returns 1, don't let that MEM
                   6685:        satisfy a `>' or `<' constraint.
                   6686: 
                   6687:        * m68k.md (cmpmb): Delete special pattern, make cmpqi handle it.
                   6688:        The special pattern couldn't handle reloading the incremented register.
                   6689: 
                   6690:        * integrate.c (copy_rtx_and_substitute): Test BYTES_BIG_ENDIAN,
                   6691:        not BITS...
                   6692: 
                   6693:        * combine.c (subst): Consider big-endian correction
                   6694:        when simplifying (subreg (mem ...) ...).
                   6695: 
                   6696:        * reload.c (find_reloads): Don't crash if matching operands in `asm'
                   6697:        are both read or both write.
                   6698: 
                   6699:        * expr.c (emit_push_insn): Address for movstr must be XINNER, not X.
                   6700: 
                   6701:        * toplev.c (main): Typo parsing `-fno...'.
                   6702: 
                   6703: Wed Dec 28 13:07:21 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6704: 
                   6705:        * toplev.c (rest_of_compilation): `volatile' fns need jump_optimize
                   6706:        for warnings, as if -Wreturn-type.
                   6707:        * c-typeck.c (c_expand_return): Warn about `return' in a `volatile' fn.
                   6708:        * c-decl.c (finish_function): Warn if `volatile' fn can drop thru end.
                   6709: 
                   6710:        * cse.c (canon_reg): Handle nulls as subexpressions.
                   6711:        (fold_rtx, canon_hash, mention_regs, exp_equiv_p): Likewise.
                   6712:        * loop.c (invariant_p, replace_regs, replace_call_address, may_trap_p,
                   6713:        {basic,general}_induction_var): Likewise.
                   6714: 
                   6715:        * expr.c (expand_call): Handle `const' functions:
                   6716:        Local IS_CONST is 1 if function is const.
                   6717:        Attach REG_RETVAL and REG_LIBCALL notes around the call.
                   6718:        Copy fn address to register outside of those notes.
                   6719:        Likewise precompute all parms outside them.
                   6720: 
                   6721:        * expr.c (expand_call): If fn is volatile, emit barrier after the call.
                   6722: 
                   6723:        * c-decl.c (grokdeclarator): Allow function declared const or volatile.
                   6724: 
                   6725: Sat Dec 24 18:40:12 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6726: 
                   6727:        * integrate.c (function_cannot_inline_p): If STRUCT_VALUE_INCOMING
                   6728:        or STRUCT_VALUE is defined, can't inline functions returning BLKmode.
                   6729: 
                   6730: Fri Dec 23 13:26:26 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6731: 
                   6732:        * expr.c (store_constructor): Compute array's size
                   6733:        with int_size_in_bytes.
                   6734: 
                   6735:        * varasm.c (assemble_variable): If shared data, go to data section
                   6736:        before outputting an uninitialized symbol.
                   6737: 
                   6738:        * tm-sequent.h (ASM_OUTPUT_ALIGN_CODE): Missing backslash.
                   6739:        (SHARED_SECTION_ASM_OP): Macro defined.
                   6740:        * tm-seq386.h (SHARED_SECTION_ASM_OP): Macro defined.
                   6741: 
                   6742:        * c-typeck.c (c_expand_asm_operands): Warn if output op is `const'.
                   6743: 
                   6744:        * Fix problem where a stmt expr in an initialization
                   6745:        refers to the variable it is initializing.
                   6746:        * stmt.c (expand_decl_init): New fn split out from `expand_decl'.
                   6747:        * c-decl.c (finish_decl): Call that.
                   6748:        Don't call expand_decl if already done.
                   6749:        (start_decl): Call expand_decl if type is complete already.
                   6750: 
                   6751:        * Makefile (install): Typo in ranlib command.
                   6752: 
                   6753: Thu Dec 22 15:57:12 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   6754: 
                   6755:        * tree.h (tree_identifier): New field.
                   6756:        (IDENTIFIER_ERROR_LOCUS): Accessor for it.
                   6757:        * c-parse.y (primary => IDENTIFIER):
                   6758:        Undeclared variable gets one err msg per function it appears in.
                   6759: 
                   6760:        * ns32k.md (andsi3): Delete extra brace.
                   6761: 
                   6762:        * alliant.md, xm-alliant.h, tm-alliant.h, output-alliant.c: New files.
                   6763: 
                   6764:        * combine.c (SUBST, SUBST_INT): Store new field `is_int'.
                   6765:        (copy_substitutions): Don't copy an int as an rtx.
                   6766: 
                   6767:        * Makefile (INSTALL): Install gcc.1 properly.
                   6768: 
                   6769:        * tm-ns32k.h (FUNCTION_PROLOGUE, ASM_OUTPUT_ALIGN_CODE):
                   6770:        Add missing backslashes.
                   6771: 
1.1.1.9   root     6772: See file OChangeLog.
1.1       root     6773: 
                   6774: Local Variables:
                   6775: mode: indented-text
                   6776: left-margin: 8
                   6777: fill-column: 76
                   6778: version-control: never
                   6779: End:

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.