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Annotation of gcc/ChangeLog, revision 1.1.1.14

1.1.1.14! root        1: Thu Feb 23 05:55:57 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !             2: 
        !             3:        * Version 1.34 released.
        !             4: 
        !             5:        * c-typeck.c (build_c_cast): If EXPR is an error mark, return that.
        !             6: 
        !             7:        * fold-const.c (div_and_round_double): Abort if divisor is 0.
        !             8:        (combine): Likewise, for real constants.
        !             9:        (real_zerop): New subroutine.
        !            10:        (fold): Don't try to fold division if divisor is 0.
        !            11:        Don't try to fold reals if can't do arithmetic on them.
        !            12:        Don't try to compare reals for TRUTH_..._EXPR if can't do arith.
        !            13:        Use real_zerop to test reals for zeroness.
        !            14:        For TRUTH_ANDIF_EXPR and TRUTH_ORIF_EXPR, can simplify based on
        !            15:        first operand alone.
        !            16: 
        !            17:        * c-typeck.c (store_init_value): Fix error msg text.
        !            18: 
        !            19:        * tm-sparc.h (FUNCTION_PROFILER): Use `mcount'.
        !            20:        * tm-sun4os3.h (FUNCTION_PROFILER): Override it; use `.mcount'.
        !            21: 
        !            22: Wed Feb 22 04:33:22 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            23: 
        !            24:        * tm-hp9k320.h (CPP_SPEC, CPP_PREDEFINES): Make handling of
        !            25:        -Dmc68000 depend on TARGET_DEFAULT.
        !            26: 
        !            27:        * tm-sparc.h (FUNCTION_PROFILER): Missing newline in fprintf.
        !            28: 
        !            29:        * integrate.c (expand_inline_function): Don't map struct-value-address
        !            30:        in memory if fn does not use it.
        !            31: 
        !            32:        * c-parse.y (check_newline): At skipline, detect eof.
        !            33: 
        !            34:        * stmt.c (uninitialized_vars_warning): Change text of warning.
        !            35: 
        !            36: Tue Feb 21 03:58:50 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            37: 
        !            38:        * output-sparc.c (output_mul_insn): Handle case of both args
        !            39:        in reg 8, or both in reg 9.
        !            40: 
        !            41:        * tm-sparc.h (ASM_SPEC): Define, to handle -pipe.
        !            42: 
        !            43:        * tm-sparc.h (FUNCTION_PROFILER): Add omitted fprintf args.
        !            44:        (BLOCK_PROFILER): Likewise.  Use tempvar.
        !            45: 
        !            46:        * m68k.md (QImode btst): Allow nonoffsetable mem refs.
        !            47: 
        !            48: Mon Feb 20 00:32:42 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            49: 
        !            50:        * flow.c (mark_used_regs): Don't record about global reg vars.
        !            51: 
        !            52:        * config.gcc (convex-*): tm file names are tm-convex1.h, tm-convex2.h.
        !            53: 
        !            54:        * tm-vax.h, tm-ns32k.h, tm-alliant.h: Define PCC_STATIC_STRUCT_RETURN.
        !            55: 
        !            56:        * gcc.c (compilers): Pass `-a' to cc1.
        !            57:        * tm-sun3.h, tm-sparc.h (LIB_SPEC): Define, to handle `-a'.
        !            58: 
        !            59:        * expr.c (emit_push_insn): Copy stack addresses to be passed to bcopy;
        !            60:        old method of preadjustment is broken by changes in emit_library_call.
        !            61: 
        !            62:        * c-decl.c (finish_decl): New temp `temporary'; don't get confused
        !            63:        about whether allocation was temporary.
        !            64: 
        !            65: Sun Feb 19 17:03:35 1989  Chris Smith  (csmith at mozart)
        !            66: 
        !            67:        * tm-convex.h: define PCC_STATIC_STRUCT_RETURN
        !            68: 
        !            69:        * convex.md:
        !            70:        remove pshea patterns, movsi does it better.
        !            71:        add ashift:DI abs:DF abs:SF
        !            72:        (tstdi): use a clobbered register instead of a bogus DImode zero.
        !            73:        (trunchiqi2): delete noninstruction cvth.b
        !            74:        (udivsi3, udivhi3, udivqi3): deleted, expand_divmod does it now.
        !            75:        (call, call_value): delete stupid call/ret -> jump optimization.
        !            76:        (call, call_value): flush call_ap_check, use reg_mentioned_p instead.
        !            77: 
        !            78:        * convex.md: (movxx): swap constraint alternatives so that the
        !            79:        leftmost alternative is (set =g r).  This makes (set mem const)
        !            80:        get combinable input reloads of const instead of uncombinable
        !            81:        output reloads to mem.  They still do not combine, but wtf,
        !            82:        I'll inch up on it.
        !            83: 
        !            84:        * output-convex.c: (const_double_{high,low}_int): new routines
        !            85:        to pick apart const_doubles for assembler.
        !            86: 
        !            87: Sun Feb 19 01:40:17 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            88: 
        !            89:        * sparc.md (shift memory right 24 bits): Another `a1' typo.
        !            90: 
        !            91:        * config.gcc (convex-*): Delete troublesome whitespace.
        !            92: 
        !            93:        * c-decl.c (grokparms): Delete redundant `parm != 0' tests.
        !            94: 
        !            95:        * stmt.c (fixup_memory_subreg): Slight simplification.
        !            96: 
        !            97:        * tm-sparc.h (FUNCTION_PROFILER): Fill delay slot.
        !            98:        (FUNCTION_BLOCK_PROFILER): Use sethi.
        !            99:        (BLOCK_PROFILER): Use %g2, not %g0.  Use sethi.
        !           100: 
        !           101: Sat Feb 18 02:11:25 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           102: 
        !           103:        * expr.c (expand_expr): Ignore const array's initial value
        !           104:        if it's an error_mark.
        !           105:        * c-decl.c (finish_decl): Set DECL_INITIAL to an error_mark
        !           106:        if the decl is a permanent node.
        !           107: 
        !           108:        * cccp.c (rescan): If traditional, if macro ends inside string,
        !           109:        keep scanning for the end of the string.
        !           110:        (handle_directive): A line of just `#' becomes blank.
        !           111:        (collect_expansion): \ in strings traditionally doesn't hide macro arg.
        !           112: 
        !           113:        * m68k.md, alliant.md (addsi3): New alternative a=r+a, in addition
        !           114:        to old a=a+r, needed since reload-insns are not commuted.
        !           115: 
        !           116: Fri Feb 17 03:15:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           117: 
        !           118:        * tm-m68k.h (PCC_STATIC_STRUCT_RETURN): Define it.
        !           119:        * toplev.c, flags.h: New var flag_pcc_struct_return.
        !           120:        * stmt.c (expand_function_start): Obey new flag and new variable.
        !           121:        * expr.c (expand_call): Obey new flag and new variable.
        !           122:        * varasm.c (assemble_static_space): New function.
        !           123: 
        !           124:        * stmt.c (expand_return): If we need cleanups, compute retval first
        !           125:        into pseudo reg, then do the cleanups, then copy it to return reg.
        !           126: 
        !           127: Thu Feb 16 02:59:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           128: 
        !           129:        * regclass.c (init_reg_sets_1): Win if STATIC_CHAIN_REGNUM undefined.
        !           130: 
        !           131:        * expr.c (expand_call): Handle conflict between two precomputed
        !           132:        args that are both function calls returning structures.
        !           133: 
        !           134:        * loop.c (move_movables): Bkwds test of m->partial, for a matching reg.
        !           135: 
        !           136:        * expr.c (emit_library_call, expand_call): Handle STACK_ARGS_ADJUST.
        !           137: 
        !           138: Wed Feb 15 01:59:15 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           139: 
        !           140:        * toplev.c (flag_caller_saves): New var, for -fcaller-saves.
        !           141:        DEFAULT_CALLER_SAVES controls initial value.
        !           142:        * global-alloc.c (find_reg): Do caller saves only if flag set.
        !           143:        * local-alloc.c (find_free_reg): Do caller saves only if flag set.
        !           144:        * tm-alliant.h, tm-convex.h: Define DEFAULT_CALLER_SAVES.
        !           145: 
        !           146: Wed Feb 15 01:59:15 1989  Chris Smith  (rms at sugar-bombs.ai.mit.edu)
        !           147: 
        !           148:        * caller-save.c: New file.
        !           149:        * regs.h (CALLER_SAVE_PROFITABLE): New macro.
        !           150:        (reg_n_calls_crossed): new int-vector replaces reg_crosses_calls.
        !           151:        * flow.c (allocate_for_life_analysis, propagate_block, dump_flow_info):
        !           152:        Use reg_n_calls_crossed.
        !           153:        * stupid.c (stupid_mark_refs, stupid_life_analysis): Likewise.
        !           154:        * global-alloc.c (find_reg): Sometimes allocate call-clobbered regs
        !           155:        for call-crossing pseudos.
        !           156:        New arg ACCEPT_CALL_CLOBBERED; callers changed.
        !           157:        * local-alloc.c (find_free_reg): Similar changes.
        !           158:        (qty_n_calls_crossed): New int-vector replaces qty_crosses_calls.
        !           159:        (alloc_qty, local_alloc, combine_regs, find_free_reg): change that var.
        !           160:        * regclass.c (call_fixed_regs, call_fixed_reg_set): new vars.
        !           161:        (init_reg_sets_1): Initialize them.
        !           162:        * reload1.c (reload): Call caller-saves processing if needed.
        !           163: 
        !           164: Wed Feb 15 01:59:15 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           165: 
        !           166:        * expr.c (expand_expr): INTEGER_CST for DImode: don't handle
        !           167:        endianness here.  So CONST_DOUBLE_LOW is always the low word.
        !           168:        * varasm.c (force_const_mem): Handle it here. 
        !           169: 
        !           170:        * expr.c (convert_move): widening followed by extendsidi2 had braino.
        !           171: 
        !           172:        * integrate.c: Don't include ctype.h; not needed and kills Sun cpp.
        !           173: 
        !           174:        * m68k.md (cmpsf, cmpdf and their recognizers):
        !           175:        Replace MINUS with COMPARE.
        !           176:        Also, use VOIDmode for COMPAREs, not SF or DF.
        !           177: 
        !           178:        * optabs.c (sign_expand_binop): Handle ops such as division where
        !           179:        an unsigned char could be widened and handled with signed int insns.
        !           180:        * expmed.c (expand_divmod): Use that.
        !           181: 
        !           182:        * c-typeck.c (digest_init): Allow for type variants in validating
        !           183:        initialization from a string constant.
        !           184: 
        !           185:        * c-typeck.c (decl_constant_value): Disable opt. if pedantic or
        !           186:        outside functions, so that validity of program is never affected.
        !           187: 
        !           188:        * fold-const.c (fold): Signedness-test for ABS_EXPR was backwards.
        !           189: 
        !           190: Tue Feb 14 01:30:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           191: 
        !           192:        * cccp.c (main): Don't omit normal output, if we want deps on
        !           193:        a separate stream.
        !           194: 
        !           195:        * c-decl.c (grokdeclarator): Don't record any arg types for functions
        !           196:        if -traditional.
        !           197: 
        !           198:        * print-tree.c (prtypeinfo): Mention permanent attribute.
        !           199: 
        !           200:        * tm-next.h: New file.
        !           201: 
        !           202:        * c-typeck.c (decl_constant_value): The DECL_INITIAL may be ERROR_MARK.
        !           203: 
        !           204:        * c-decl.c (duplicate_decls): For fns, new static decl overrides
        !           205:        old non-static one.
        !           206: 
        !           207:        * emit-rtl.c (gen_lowpar, gen_highpart): Use change_address, so we
        !           208:        preserve volatility, etc.
        !           209: 
        !           210:        * stmt.c (expand_expr_stmt): Use emit_filename, emit_lineno
        !           211:        as file and line for any warning.
        !           212:        * emit-rtl.c (emit_line_note): Set those vars.
        !           213: 
        !           214:        * c-decl.c (store_parm_decls): If -Wimplicit, warn of arg with no decl.
        !           215: 
        !           216:        * recog.c (offsetable_address_p): Use strict_memory_address_p,  
        !           217:        since called from reload.c.
        !           218: 
        !           219: Mon Feb 13 03:11:50 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           220: 
        !           221:        * sparc.md (compare-to-reg patterns): Some still had MINUS.
        !           222: 
        !           223:        * toplev.c (main): Warn if `-a' on system that can't handle it.
        !           224: 
        !           225:        * stmt.c (expand_asm_operands): Delete unused local `val'.
        !           226:        (pushcase_range): Likewise for `value'.
        !           227:        (fixup_var_refs): Likewise for `insn'.
        !           228:        * emit-rtl.c (start_sequence): Likewise for `save'.
        !           229:        * loop.c (scan_loop): Likewise for `before_start'.
        !           230:        * expr.c (expand_expr): Delete label `binop1'.
        !           231: 
        !           232:        * reload1.c (constraint_accepts_reg_p): Handle SUBREGs of REGs.
        !           233: 
        !           234: Sun Feb 12 05:37:46 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           235: 
        !           236:        * gnulib.c (__bb_init_func): New function
        !           237: 
        !           238:        * tm-m68k.h (BLOCK_PROFILER, FUNCTION_BLOCK_PROFILER): Defined.
        !           239: 
        !           240: Sat Feb 11 00:05:55 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           241: 
        !           242:        * tm-sparc.h (FUNCTION_PROFILER): Make it really work.
        !           243:        (BLOCK_PROFILER, FUNCTION_BLOCK_PROFILER): New macros.
        !           244: 
        !           245:        * final.c (final): Use BLOCK_PROFILER at start of each basic block.
        !           246:        (final_start_function): Use FUNCTION_BLOCK_PROFILER if -a.
        !           247:        (end_final): New fn to output the block-profiling tables.
        !           248:        * toplev.c (profile_block_flag): Set if -a.
        !           249:        (compile_file): Call end_final.
        !           250: 
        !           251:        * combine.c (try_combine): Avoid combining in most cases if I3
        !           252:        has an inc or dec and I1 or I2 uses the same register.
        !           253: 
        !           254:        * tree.c (size_in_bytes, int_size_in_bytes): Use type's main variant.
        !           255: 
        !           256:        * c-typeck.c (actualparameterlist): Error if parm type is incomplete.
        !           257: 
        !           258:        * expr.c (expand_call): Ignore args that have incomplete type.
        !           259: 
        !           260: Fri Feb 10 02:26:02 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           261: 
        !           262:        * c-parse.y (case stmts): strip dummy NOP_EXPRs.
        !           263: 
        !           264:        * reload1.c (reload_as_needed): Clear reg_{has,is}_output_reload here,
        !           265:        (choose_reload_targets): not here.
        !           266: 
        !           267: Thu Feb  9 01:35:55 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           268: 
        !           269:        * output-sparc.c (output_mul_by_constant): Forget cc status.
        !           270: 
        !           271:        * stmt.c (assign_parms): Don't put volatile parms in regs.
        !           272: 
        !           273:        * vax.md (jlbs/jlbc recognizers): Move them before jbc/jbs recognizers.
        !           274: 
        !           275:        * cse.c (fold_rtx): Handle (EQ (COMPARE ...) (CONST_INT 0)).
        !           276: 
        !           277:        * c-typeck.c (default_conversion, digest_init): For static const
        !           278:        nonvolatile scalar variable, use its initial value if known.
        !           279: 
        !           280:        * expr.c (expand_expr: case COMPONENT_REF): If containing structure
        !           281:        comes out volatile, leave the component MEM volatile too.
        !           282: 
        !           283:        * hard-reg-set.h: Fix multi-word case macros to swallow semicolon.
        !           284: 
        !           285:        * c-typeck.c (default_conversion): In array=>ptr, volatility
        !           286:        of target type comes from TREE_THIS_VOLATILE, not TREE_VOLATILE.
        !           287: 
        !           288:        * reload1.c (forget_old_reload_1, choose_reload_targets):
        !           289:        New array reg_is_output_reload is converse of reg_has_output_reload.
        !           290:        forget_old_reload_1 needs both.
        !           291: 
        !           292: Wed Feb  8 01:26:24 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           293: 
        !           294:        * reload1.c (forget_old_reloads_1): New fn, guts of forget_old_reloads.
        !           295:        Do process a spill reg if it isn't used for reloading in this insn.
        !           296:        (forget_old_reloads): Deleted, replaced with note_stores.
        !           297:        (reload_as_needed): Undo Feb 1 change.
        !           298:        Call forget_old_reloads_1 on pseudos autoincremented and not reloaded.
        !           299: 
        !           300:        * c-typeck.c (convert_for_assignment): Handle variant types.
        !           301: 
        !           302:        * c-decl.c (lang_decode_option): -Wall implies -Wunused.
        !           303: 
        !           304: Tue Feb  7 01:32:28 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           305: 
        !           306:        * combine.c (try_combine): Don't try adding outputs to an asm_operands.
        !           307: 
        !           308:        * cse.c (CHEAPER): Don't ever let a hard reg get ahead of a pseudo.
        !           309: 
        !           310:        * stmt.c (fixup_gotos): Don't crash on undef label if THISBLOCK is 0.
        !           311: 
        !           312:        * c-decl.c (parmlist_tags_warning): New fn.
        !           313:        * c-parse.y (parmlist, parmlist_or_identifiers): Call it,
        !           314:        to warn about any tags defined inside the parmlist.
        !           315:        * c-decl.c (grokparms): Don't warn about ptr to incomplete type.
        !           316:        The new warning is better.
        !           317: 
        !           318: Mon Feb  6 01:11:36 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           319: 
        !           320:        * expr.c (store_constructor): Incorrect ALIGN arg in store_field calls.
        !           321: 
        !           322:        * c-parse.y (%union): Delete unused alternative.
        !           323: 
        !           324:        * c-decl.c (grokparms): Use main variant to test for ptr to incomplete.
        !           325: 
        !           326:        * c-decl.c (finish_enum): Delete superfluous init for `pair'.
        !           327: 
        !           328:        * cse.c (fold_rtx): Optimize X+0, X-0 in floating point.
        !           329:        Fix typo in PLUS case; omitted value to compare GET_MODE_CLASS against.
        !           330:        (equiv_constant): Allow CONST_DOUBLE.
        !           331: 
        !           332:        * cse.c: Optimize past if-statements that are known to fail.
        !           333:        (cse_insn): If condjump becomes uncond to end of this block,
        !           334:        set cse_skip_to_next_block.
        !           335:        (cse_basic_block): If that happens, ignore rest of block, and maybe
        !           336:        treat next block as part of this one (if tables have room).
        !           337:        Resume insn that starts next basic block to be scanned.
        !           338:        (cse_main): Make room for at least 500 qtys.
        !           339:        (cse_end_of_basic_block): Subroutine broken out of cse_main.
        !           340: 
        !           341:        * c-parse.y (hash, is_reserved_word): Rewrite: new hash technique.
        !           342: 
        !           343:        * c-decl.c (duplicate_decls): Be smart about proto vs nonproto mismatch
        !           344:        involving a function definition.
        !           345: 
        !           346: Sun Feb  5 17:31:12 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           347: 
        !           348:        * alliant.md (movdi): Typo in `fmoved'.
        !           349:        (ftruncsf2): Handle moving into fp reg.
        !           350: 
        !           351:        * jump.c (jump_optimize): Typo in testing PRESERVE_DEATH_INFO_REGNO_P.
        !           352: 
        !           353:        * reload1.c (choose_reload_targets): Move all death notes to the
        !           354:        output reload insn.
        !           355: 
        !           356:        * m68k.md (fix_truncsfsi2,fix_truncdfsi2): Use accurate rtl pattern.
        !           357: 
        !           358:        * loop.c (delete_insn_forces): Use presence of REG_RETVAL to check
        !           359:        for value-of-library-call insn.
        !           360: 
        !           361: Sat Feb  4 18:17:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           362: 
        !           363:        * integrate.c (expand_inline_function): Make addresses of stack
        !           364:        slots valid somehow.
        !           365: 
        !           366:        * tm-3b1.h (DIVSI3_LIBCALL, etc.): Define these macros; avoid gnulib.
        !           367: 
        !           368:        * expmed.c (store_bit_field): Avoid (subreg (mem)) when converting
        !           369:        VALUE1 to SImode.
        !           370: 
        !           371:        * jump.c (jump_optimize): Do delete USE and CLOBBER insns.
        !           372:        This is needed for proper jump optimization.
        !           373: 
        !           374:        * rtl.def (COMPARE): New code.
        !           375:        * *.md (compare and related patterns): Use COMPARE, not MINUS:VOID.
        !           376:        * loop.c (eliminate_biv, can_eliminate_biv_p): Likewise.
        !           377:        * cse.c (fold_rtx, fold_cc0, cse_insn):
        !           378:        * output-m88k.c (output_{f,}compare, output_store):
        !           379:        * output-sparc.c (strict_single_insn_op_p, single_insn_src_p, safe_insn_src_p):
        !           380:        * combine.c (subst):
        !           381:        * jump.c (jump_back_p):
        !           382: 
        !           383: Fri Feb  3 18:34:27 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           384: 
        !           385:        * output-i386.c (notice_update_cc): If arith insn sets the cc's,
        !           386:        discard all remnants of previous cc value and flags.
        !           387: 
        !           388:        * sparc.md (ashiftrt mem by 24): Fix typo `a1'.
        !           389: 
        !           390: Thu Feb  2 14:55:44 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           391: 
        !           392:        * output-sparc.c (output_mul_insn): Clear the CC status.
        !           393: 
1.1.1.13  root      394: Wed Feb  1 20:01:54 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    395: 
                    396:        * Version 1.33 released.
                    397: 
                    398:        * reload1.c (reload_as_needed): On entering new basic block,
                    399:        if it didn't need reload regs, forget all inherited contents of those.
                    400: 
                    401:        * tm-alliant.h (NOTICE_UPDATE_CC): Floating moves don't set the cc's.
                    402:        Also delete the clauses and tests for FPA regs. 
                    403: 
                    404: Tue Jan 31 21:51:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    405: 
                    406:        * config.gcc: Handle convex-c1, convex-c2.
                    407:        * tm-convex1.h, tm-convex2.h: New files that include tm-convex.h.
                    408:        * tm-convex.h: Define switches -mnoc1, -mnoc2.
                    409: 
                    410:        * config.gcc: rename `nofp' to `nfp', to match the file names.
                    411: 
                    412: Mon Jan 30 22:12:15 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    413: 
                    414:        * output-sparc.c (output_delay_insn): Extract the operands,
                    415:        call alter_subreg, constrain_operands and NOTICE_UPDATE_CC.
                    416:        So callers other than output_eager_then_insn don't lose.
                    417:        (output_eager_then_insn): No need to do that stuff.
                    418: 
                    419:        * symout.c (symout_block_symbols): Handle (MEM (REG)) for
                    420:        variable-sized arrays.
                    421: 
                    422:        * tm-encore.h (ASM_SPEC): Always pass -j; avoid jump-range lossage.
                    423: 
                    424: Sun Jan 29 17:06:26 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    425: 
                    426:        * alliant.md: Fix refs to CONST_DOUBLEs to use CONST_DOUBLE_{HIGH,LOW}.
                    427: 
                    428:        * combine.c (subst): (minus (zero_extend ...) (const_int ...)) opt.
                    429:        now limited to within the context of (set (cc0) ...).
                    430: 
                    431: Sat Jan 28 14:26:08 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    432: 
                    433:        * cse.c (fold_cc0): Missing `&' extracting CONST_DOUBLEs.
                    434:        (fold_rtx): Don't put CONST_DOUBLEs together into a (CONST (PLUS...)).
                    435: 
                    436:        * output-convex.c (gen_cmp): Recognize CONST_DOUBLE as a constant.
                    437: 
                    438:        * tree.c (build_real_from_int_cst): Typo in REAL_ARITHMETIC case.
                    439: 
                    440:        * Makefile (bootstrap2): Don't use bootstrap3 as subroutine.
                    441: 
                    442:        * varasm.c (force_const_mem): Put the CONST_DOUBLE on the chain
                    443:        if its MEM is stored in it; so it can be cleared at end of function.
                    444: 
                    445:        * stmt.c (emit_case_nodes): Put a compare before each cond-jump.
                    446:        Two cond-jumps after one cond is invalid and makes cse produce garbage.
                    447: 
                    448: Fri Jan 27 01:05:01 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    449: 
                    450:        * tm-sun2.h (CPP_SPEC): Define __HAVE_68881__ only if -m68881.
                    451: 
                    452:        * c-decl.c (start_decl): Don't expand_decl if DECL already has rtl.
                    453:        (grokparms): If just declaring fcn, incomplete parm type is just
                    454:        a warning, and don't discard the specified type.
                    455: 
                    456:        * expmed.c (expand_divmod): Be smarter about not clobbering args
                    457:        with intermediate results; one mem can clobber another, and a reg
                    458:        can clobber a mem.
                    459: 
                    460:        * tm-i386.h (FUNCTION_PROFILER): Use LPREFIX.  May actually work now.
                    461:        * tm-i386gas.h: Include tm-bsd386.h, not tm-att386.h.
                    462:        This means changing asm syntax.
                    463:        #undef DBX_NO_XREFS and DBX_CONTIN_LENGTH.
                    464: 
                    465:        * sparc.md (eager branch peepholes): Don't forget 2nd arg to
                    466:        safe_insn_src_p.
                    467:        Don't print warnings.
                    468:        * output-sparc.c: (strict_single_insn_op_p): Return 0 for floating
                    469:        REG or MEM, since copying that may take 2 insns.
                    470:        (operands_satisfy_eager_branch_peephole): require delay insn to
                    471:        be strict_single_insn_op_p as well as safe_insn_src_p.
                    472:        (operand_clobbered_before_used_after): Don't print warnings.
                    473: 
                    474:        * varasm.c (decode_rtx_const): Clear entire structure incl. gaps.
                    475:        Avoids spurious hash mismatches.
                    476:        (force_const_mem): If CONST_DOUBLE, store its CONST_DOUBLE_MEM field.
                    477:        Also look in that field rather than hashing, to save time.
                    478: 
                    479:        * c-typeck.c (build_c_cast): If value is literal, mark NOP_EXPR as so.
                    480:        (store_init_value): Change error msg.
                    481: 
                    482:        * c-decl.c (duplicate_decls): Classify prototype vs nonprototype
                    483:        mismatches better.
                    484: 
                    485:        * tm-3b1.h: Fix comment.
                    486: 
                    487: Wed Jan 25 12:46:50 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    488: 
                    489:        * Makefile (cleanlinks): Use -f.
                    490: 
                    491: Tue Jan 24 17:54:16 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    492: 
                    493:        * cse.c (canon_hash): Fix paren error in last change.
                    494: 
                    495:        * varasm.c (immed_real_const_1): Missing arg to bcmp.
                    496: 
                    497: Mon Jan 23 02:43:45 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    498: 
                    499:        * stor-layout.c (layout_type): BLKmode elts force array to be BLKmode.
                    500: 
                    501:        * genpeep.c, genoutput.c, genemit.c: Put `#include "real.h"' in output.
                    502: 
                    503:        * stmt.c (expand_expr_stmt): No "no effect" warning for error-mark.
                    504: 
                    505:        * varargs.h: Rename implicit arg name to __builtin_va_alist
                    506:        which triggers code in assign_parms.  Does this really matter?
                    507: 
                    508:        * sparc.md (sne): New define_expand.
                    509:        (seq recognizers): Handle sne as well.
                    510:        * output-sparc.c ({strict_,}single_insn_src_p):
                    511:        Some NEG and MINUS insns are actually 2 asm insns.
                    512:        (safe_insn_src_p): No floating arith is safe; they can trap.
                    513:        (eq_or_neq): New fn, for seq/sne recognizers.
                    514: 
                    515:        * c-decl.c (grokdeclarator, size of array type):
                    516:        Strip from SIZE any NOP_EXPRs that don't change anything.
                    517: 
                    518:        * reload.c, recog.c: Include real.h so constraint macros can examine
                    519:        CONST_DOUBLEs.
                    520: 
                    521: Sun Jan 22 04:12:54 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    522: 
                    523:        * c-decl.c (init_decl_processing): Define __builtin_saveregs.
                    524:        * tree.h: likewise.
                    525:        * expr.c (expand_builtin): Handle it.
                    526: 
                    527:        * tm-sparc.h: Define TARGET_EAGER and -meager.
                    528:        * sparc.md (eager branch peepholes): Reenable, but test TARGET_EAGER.
                    529:        Change fb insns to use %F.  Delete `,a' from some of them.
                    530:        * jump.c (jump_optimize): Don't delete USE and CLOBBER insns.
                    531: 
                    532:        * xm-vms.h (const): Define it as empty.
                    533: 
                    534:        * make-cccp.com: Move the rename of cexp_tab.c.
                    535:        Compile cccp.c with no macro definitions.
                    536: 
                    537:        * cccp.c (main): VMS conditional for setting max_include_len.
                    538: 
                    539: Sat Jan 21 12:53:00 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    540: 
                    541:        * varargs.h (va_start): On sparc, call __builtin_saveregs.
                    542:        Delete the old conditional that used va-sparc.h.
                    543:        Rename macros and locals to start with two underscores.
                    544:        * va-sparc.h: File deleted.
                    545: 
                    546:        * c-decl.c (store_parm_decls): Initialize OTHERS.
                    547: 
                    548:        * stmt.c (assign_parms): Obey layout_decl.
                    549: 
                    550: Fri Jan 20 02:19:32 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    551: 
                    552:        * cse.c (fold_rtx): For SYMBOL_REF and LABEL_REF, mask address
                    553:        to 16 bits.
                    554: 
                    555:        * tree.h (NUM_TREE_CODES): NUM_TREE_CODE renamed.
                    556: 
                    557: Thu Jan 19 13:53:24 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    558: 
                    559:        * c-typeck.c (mark_addressable): For global reg var, report error.
                    560:        Now returns an int; value of 0 means caller should fail.
                    561:        All calls (in this file) changed.
                    562: 
                    563:        * stor-layout.c (layout_decl): Don't let an more than 1 word
                    564:        of any aggregate go in any 1 register.  (Needed for machines whose
                    565:        integer regs are 64 bits).
                    566: 
                    567:        * tm-convex.h, xm-convex.h, convex.md, output-convex.c: new files.
                    568: 
                    569:        * expr.c (convert_move): Use extendqidi2, etc. for converting
                    570:        small ints to double ints.  Use zero_extendsidi2 rather than
                    571:        clearing the high half.
                    572: 
                    573: Wed Jan 18 01:20:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    574: 
                    575:        * varasm.c (make_decl_rtl): If global `register' decl is invalid,
                    576:        make ordinary non-register rtl.
                    577: 
                    578:        * output-sparc.c (operand_clobbered_before_used_after): new fn.
                    579:        (reg_clobbered_p, safe_insn_src_p): New fns.
                    580:        (single_insn_src_p): Treat constants all as ok, even though not
                    581:        always literally so.  Also accept some SIGN_EXTENDs and ZERO_EXTENDs.
                    582:        (strict_single_insn_src_p): New fn, like above but is strict
                    583:        about constants and constant memory addresses.
                    584:        (relop): New fn.
                    585:        (output_move_double): Don't make a MEM, and don't use %m.
                    586:        (output_delayed_branch): New name for output_delay_insn.
                    587:        Now handle non-small constant operands.
                    588:        Avoid duplicate loads of g1 for constant addresses.
                    589:        Use recog_operand directly for output of the delay insn.
                    590:        (output_delay_insn): Now a completely new fn.
                    591:        (output_eager_then_insn, next_real_insn_no_labels): New fns.
                    592:        (operands_satisfy_eager_branch_peephole): New fn.
                    593: 
                    594:        * sparc.md: New peepholes for testing a recently used operand.
                    595:        New peepholes for delayed branches, incl. conditional ones.
                    596:        ** Some of them commented out because they seem not to work.
                    597:        (andcc recognizer): Fix typo, missing %.
                    598:        (bgt): Change bgt to bg in output.
                    599:        (reversed jumps): Replace with one pattern using match_operand.
                    600:        It uses %F to output the condition.
                    601:        (movsi): For round-valued immed const, use just a sethi.
                    602:        For other immed, use explicit sethi and or.
                    603:        (movhi, movqi): use `move' for reg source or small int source.
                    604:        For other immed, use explicit sethi and or.
                    605:        (movsi, etc.):  Handle all constant addresses like SYMBOL_REFs.
                    606:        (movsf): Delete never-used duplicate code for constant addresses.
                    607:        (addsi3, subsi3, cse'd multiply): Use sethi and or, rather than set.
                    608:        (andsi3, iorsi3, xorsi3): Likewise.
                    609:        (jump): Make an annulled branch.
                    610: 
                    611:        * tm-sparc.h (PROMOTE_PROTOTYPES): Define this.
                    612:        (GO_IF_LEGITIMATE_ADDRESS): Now accept all constant addresses;
                    613:        also cleaned up.
                    614:        (NOTICE_UPDATE_CC): Don't change the G1 status when storing in memory.
                    615:        Assume all PARALLEL insns are peepholes.
                    616:        (PRINT_OPERAND): New codes C and N for outputting conditions,
                    617:        either forward or reversed.  Also F for reversed floating.
                    618: 
                    619:        * jump.c (delete_for_peephole): New function to delete range of insns.
                    620:        * genpeep.c (gen_peephole): Output code to use this.
                    621: 
                    622:        * Makefile (install): Fix typo, had $${name} for $${file}.
                    623: 
                    624: Tue Jan 17 00:00:12 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    625: 
                    626:        * i386.md (ashlsi3): Use addl or leal for special cases.
                    627: 
                    628:        * c-decl.c (grokdeclarator): Make a non-global VAR_DECL public
                    629:        if it is external.
                    630: 
                    631:        * masm386.c: Clean up formatting.
                    632: 
                    633:        * cse.c (fold_rtx): Typo simplifying x|0 or x^0
                    634:        when the 0 comes second.
                    635: 
                    636:        * expmed.c (store_fixed_bit_field): For halfwords, verify that
                    637:        the field fits in an *aligned* halfword.
                    638:        (extract_fixed_bit_field): likewise.
                    639: 
                    640:        * expmed.c (store_split_bit_field): New arg align, passed in from
                    641:        store_fixed_bit_field and passed back to it.
                    642:        (extract_split_bit_field): likewise.
                    643: 
                    644:        * expr.c: Reinsert changes from Jan 2, mysteriously deleted Jan 3.
                    645:        Also changes from Dec 23, Dec 28 and Dec 29.
                    646: 
                    647:        * tm-i386.h: Likewise for changes from Dec 30.
                    648: 
                    649:        * c-typeck.c (build_component_ref): If field's type is error-mark,
                    650:        return an error-mark.
                    651: 
                    652: Mon Jan 16 14:16:54 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    653: 
                    654:        * genpeep.c (main): Output code to exit early if insn is followed
                    655:        by a barrier.
                    656:        (gen_peephole): Reject barriers just like labels.
                    657: 
                    658:        * stmt.c (do_jump_if_equal): New arg UNSIGNEDP, for emit_cmp_insn.
                    659:        Caller changed.  Now static.
                    660: 
                    661:        * final.c (final): Set INSN_DELETED_P in insns when output.
                    662: 
                    663:        * final.c (final): Re-set BODY if peephole does anything.
                    664: 
                    665:        * c-decl.c (grokparms): Ignore anything but PARM_DECLs in the list.
                    666:        (store_parm_decls): If we had a prototype, separate out anything other
                    667:        than a PARM_DECL declared in it, and pushdecl those at the end,
                    668:        after DECL_ARGUMENTS is set.
                    669: 
                    670:        * stmt.c (expand_end_case): Do stack adjusts after computing index.
                    671: 
                    672:        * expr.c (store_one_arg): Handle padding for case of BLKmode
                    673:        for which space was preallocated.
                    674: 
                    675:        * integrate.c (copy_rtx_and_substitute): When copying asm insn,
                    676:        preserve sharing of the input-operand vectors.
                    677:        (expand_inline_function): Clear {orig,copy}_asm_operands_vector
                    678:        to make that mechanism work.
                    679:        (save_for_inline, copy_for_inline): Likewise.
                    680: 
                    681:        * stmt.c (expand_asm_operands): Reject `+' in constraints.
                    682:        Every output constraint requires `='; inputs reject it.
                    683: 
                    684:        * stmt.c (expand_function_end): Arg to fixup_gotos was missing.
                    685: 
                    686: Sun Jan 15 00:28:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    687: 
                    688:        * cccp.c, gcc.c (main): Handle SIGPIPE.
                    689:        (pipe_closed): New fn; report suitable fatal error.
                    690: 
                    691:        * loop.c (loop_optimize): Initialize moved_once.
                    692: 
                    693:        * gcc.c (do_spec): Don't call `execute' if value != 0.
                    694:        Delete redundant second call to do_spec_1.
                    695: 
                    696:        * toplev.c (compile_file): Make declared-but-not-defined warnings
                    697:        only if -Wunused.
                    698: 
                    699:        * stmt.c (emit_case_nodes): Fix typo setting gen_ble_pat.
                    700: 
                    701:        * tm-sparc.h ({U,}MODSI3_LIBCALL): Name was wrong.
                    702: 
                    703:        * gcc.c (env_exec_prefix refs): Don't try to open via it if it's null.
                    704: 
                    705:        * output-sparc.c (output_store, output_load_{fixed,floating}):
                    706:        Fixed confusions between the mem ref and its address.
                    707: 
                    708:        * cse.c (canon_hash): global_regs has entries only for hard regs.
                    709:        * flow.c (insn_dead_p, mark_set_p, mark_used_regs): Likewise.
                    710: 
                    711:        * cse.c (fold_rtx): More simplifications for MULT, IOR, AND, XOR
                    712:        DIV and shifts with one arg 0 or 1.
                    713: 
                    714: Sat Jan 14 11:41:11 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    715: 
                    716:        * c-typeck.c (build_array_ref): If pedantic, check for regdecl arrays.
                    717: 
                    718:        * fixincludes: Make all subdirs in advance, so no need for `dirname'.
                    719: 
                    720:        * genpeep.c (gen_peephole): Delete code to increment LABEL_NUSES;
                    721:        instead, clear JUMP_LABEL for any jumps being deleted.
                    722:        No need to test INSN1 for being a label, since not called then.
                    723:        [If any of the matched insns is a JUMP_INSN, set want_jump,
                    724:        and in that case make the matched peephole a JUMP_INSN itself.]
                    725:        That's in an #if 0 now; it's good in jump, but not in final.
                    726: 
                    727:        * jump.c (jump_optimize): Don't do peepholes here.
                    728:        * final.c (final): Do them here.
                    729: 
                    730:        * jump.c (jump_optimize): In optimizing `if (foo) bar; else break;',
                    731:        don't try to invert anything but a standard-looking conditional jump.
                    732: 
                    733:        * jump.c (jump_optimize): Do peepholes on ALL BUT the first pass.
                    734: 
                    735:        * gcc.c (env_exec_prefix): New var used like user_exec_prefix
                    736:        but set from envvar GCC_EXEC_PREFIX.
                    737: 
                    738: Fri Jan 13 13:21:59 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    739: 
                    740:        * genpeep.c (gen_peephole): Test INSN1 for a label at the very start,
                    741:        then test following insns at the end of the loop.
                    742: 
                    743:        * sparc.md (call recognizers): do CC_STATUS_INIT, for %g1.
                    744: 
                    745: Thu Jan 12 02:13:49 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    746: 
                    747:        * varasm.c (make_decl_rtl): Recognize more error cases for reg vars:
                    748:        BLKmode, or initializer given.
                    749:        Distinguisn missing asm from invalid name.
                    750: 
                    751:        * expr.c (expand_call): Never return 0; return const0_rtx instead.
                    752:        This makes expand_expr more uniform.
                    753: 
                    754:        * c-decl.c (grokparms): For ptr to incomplete type, just warn;
                    755:        don't change the parm's type.
                    756: 
                    757:        * stmt.c (expand_return): Set RETVAL_RHS so as to recognize
                    758:        tail-recursive fcn returning void.
                    759:        Unconditionally test value of expand_expr for being a REG.
                    760: 
                    761:        * reload.c (find_reloads): Don't process insns that have
                    762:        no constraint alternatives.  No more need for have_constraints.
                    763: 
                    764:        * recog.c (constrain_operands): New local var nalternatives.
                    765:        Don't bother checking the insn if nalternatives is 0.
                    766: 
                    767: Wed Jan 11 01:27:48 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    768: 
                    769:        * Implement global register decls.
                    770: 
                    771:        * varasm.c (make_decl_rtl): Handle global register vars.
                    772:        (make_function_rtl): Set function_defined: after 1st function dfn.
                    773:        (assemble_variable): Ignore global register vars.
                    774: 
                    775:        * c-decl.c (grokdeclarator): Don't reject global register decls.
                    776:        (builtin_function): Use make_decl_rtl, not make_function_rtl,
                    777:        to avoid setting function_defined.
                    778: 
                    779:        * regclass.c (init_reg_class{,_1}): Init and process global_regs.
                    780:        They are fixed, and call-clobbered.
                    781: 
                    782:        * flow.c (insn_dead_p): Storing one of global_regs is never dead.
                    783:        (mark_used_regs, mark_set_1): A global reg is never dead.
                    784: 
                    785:        * cse.c (canon_hash): Consider global regs volatile.
                    786: 
                    787: 
                    788:        * expr.c (do_jump): Know how to invert jumps which are sequences.
                    789: 
                    790:        * dbxout.c, symout.c, final.c: On USG, use our own stab.h.
                    791: 
                    792:        * tm-i386gas.h: New file for GAS on sysV (with DBX debugging info).
                    793: 
                    794:        * m68k.md (bfchg and bfins patterns): Make # alternatives uniform.
                    795:        * alliant.md: Likewise; also in movdf patterns.
                    796: 
                    797:        * genoutput.c (output_epilogue): Spurious `break' disabled
                    798:        error check for mismatched # of alternatives.
                    799:        (output_epilogue, scan_operands): Errors in input are not fatal.
                    800: 
                    801:        * flow.c (regno_uninitialized): Avoid crash if no basic blocks.
                    802: 
                    803:        * sparc.md (move insns): Delete special patterns that handled
                    804:        symbolic constant addresses.  The main move patterns now do this.
                    805:        * output-sparc.c (output_store, output_load_{fixed,floating}):
                    806:        Subroutines to do the work for this; has the code from those
                    807:        special patterns.  Also fixed bugs in testing against cc_status.mdep.
                    808: 
                    809:        * output-sparc.c (output_delay_insn): Clear the CC status.
                    810:        This is necessary for %g1 in the case of a call insn.
                    811: 
                    812:        * tm-i386.h (REG_CLASS_CONTENTS): INDEX_REGS is now all but ESP.
                    813:        (REGNO_REG_CLASS): Corresponding change.
                    814:        (REG_CLASS_FROM_LETTER): Eliminate `x' letter since not used.
                    815: 
                    816:        * optabs.c (emit_cmp_insn): New arg ALIGN, used for BLKmode.
                    817:        All callers changed.
                    818:        Pass alignment (as rtx) as 4th arg to cmpstr gen functions.
                    819:        Use cmpstrhi if available.
                    820:        * expr.c (compare): Only this call passes a nonzero ALIGN.
                    821: 
                    822:        * expr.c (emit_push_insn, emit_block_move): Pass alignment (as rtx)
                    823:        as 4th arg to movstr gen functions.
                    824: 
                    825: Tue Jan 10 23:43:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    826: 
                    827:        * stor-layout.c (layout_type): Use BLKmode, if a struct isn't
                    828:        aligned well enough for a scalar mode.
                    829: 
                    830:        * expr.c (expand_expr): For static CONSTRUCTOR, ensure memory
                    831:        address is made valid.
                    832: 
                    833:        * genpeep.c (match_rtx): For MATCH_OPERATOR, set max_opno, n_operands.
                    834: 
                    835: Mon Jan  9 17:07:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    836: 
                    837:        * varasm.c (output_constant): Split strings every 2000 chars.
                    838: 
                    839:        * stmt.c (expand_end_case): Test bkwds, handling constant switch arg.
                    840: 
                    841: Fri Jan  6 09:11:20 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    842: 
                    843:        * output-sparc.c (output_delay_insn): Add parens to first if test.
                    844:        (output_move_double): Turn addr for `sethi' into MEM for %m.
                    845: 
                    846:        * c-typeck.c (convert_for_assignment): move test for ERROR_MARK.
                    847: 
                    848:        * c-parse.y (unary_expr): Allow cast_expr as arg of unary op.
                    849: 
                    850:        * stmt.c (expand_decl): Don't abort if FUNCTION_DECL lacks rtl;
                    851:        assemble_variable is called after this.
                    852: 
                    853:        * c-parse.y (primary -> identifier): Separate case for undeclared
                    854:        identifier outside of functions; avoids confusing error msgs.
                    855: 
                    856: Thu Jan  5 01:24:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    857: 
                    858:        * Makefile (install): Ignore errors in all `if' commands.
                    859:        Create $(libdir) if nec.
                    860: 
                    861:        * Makefile (insn-*.[ch]): Put in empty commands.  May help Ultrix Make.
                    862: 
                    863:        * stmt.c (emit_case_nodes): New arg UNSIGNEDP says do unsigned jumps.
                    864:        Arg INDEX is an rtx, not a tree.
                    865:        (expand_end_case): Pass that arg.
                    866:        (node_has_{low,high}_bound): check for overflow, avoid confusion.
                    867: 
                    868: Wed Jan  4 02:24:21 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    869: 
                    870:        * sparc.md (movdi, movdf): Use `&' constraint when loading reg from;
                    871:        otherwise can lose on (set (reg X) (mem (plus (reg X) (reg X+1)))).
                    872: 
                    873:        * expr.c (emit_push_insn): For memory scalar partially going in regs,
                    874:        copy each word to reg before pushing.  Avoids memory-to-memory move.
                    875:        Make the displaced address valid.
                    876:        Also delete unfinished STACK_OFFSET variable.
                    877: 
                    878:        * c-parse.y (check_newline): Read just one #-directive and return.
                    879:        This prevents lossage when toplev.c calls it to get the main input file
                    880:        name, and it gets a following #ident as well.
                    881: 
                    882:        * c-decl.c (lang_decode_option): Set warn_cast_qual for -Wcast-qual.
                    883:        * c-typeck.c (build_c_cast): Issue some warnings if set.
                    884: 
                    885:        * tm-3b1.h (ASM_OUTPUT_CASE_LABEL): Missing `;'.
                    886: 
                    887: Tue Jan  3 18:07:31 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    888: 
                    889:        * expr.c (emit_library_call): Do force_operand on each operand
                    890:        if it isn't a REG, MEM or constant.
                    891:        Do this, or mode conversions, earlier, before loading any hard regs.
                    892: 
                    893:        * m68k.md (addsi3) [SGS]: Put a zero displacement in the `lea'.
                    894: 
                    895:        * c-typeck.c (default_conversion): Don't lose `const' or `volatile'
                    896:        when converting array type to pointer.
                    897: 
                    898: Mon Jan  2 01:18:01 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    899: 
                    900:        * expmed.c (store_bit_field, store_fixed_bit_field): New arg,
                    901:        alignment in bytes the structure is known to have.
                    902:        (store_fixed_bit_field): Handle working in halfwords,
                    903:        in case the pointer isn't known to have fullword alignment.
                    904:        * expmed.c (extract_bit_field, extract_fixed_bit_field): likewise.
                    905:        (extract_bit_field): fix unsignedp arg to extract_fixed_bit_field.
                    906:        * expr.c (store_field): New arg, passed to {store,extract}_bit_field
                    907:        (expand_assignment, store_constructor): Pass that arg.
                    908:        (expand_expr): Pass new arg to extract_bit_field.
                    909: 
                    910:        * m68k.md (casesi_2 recognizer): Offset always 6 for 3b1.
                    911: 
                    912:        * c-typeck.c (convert_for_assignment): Strip from rhs no-op NOP_EXPRs
                    913:        put on by build_c_cast (to make the result not an lvalue).
                    914:        (build_modify_expr, build_compound_expr): likewise.
                    915:        (build_conditional_expr): likewise.
                    916:        (actualparameterlist, build_function_call): likewise.
                    917:        (default_conversion, truthvalue_conversion): likewise.
                    918: 
                    919:        * loop.c (move_movables): If reg has moved out of one loop,
                    920:        divide `savings' by 2.
                    921: 
                    922: Sun Jan  1 03:00:07 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    923: 
                    924:        * c-typeck.c (truthvalue_conversion): Distribute the conversion
                    925:        into the arms of a COND_EXPR.
                    926: 
                    927:        * cse.c (fold_rtx): Don't fold a MINUS with VOIDmode
                    928:        into a symbolic constant--it's incorrect.
                    929: 
                    930:        * cse.c (cse_insn): If SRC is a subreg with known value, simplify it.
                    931: 
                    932:        * integrate.c (copy_rtx_and_substitute): Allow a ref to a part of
                    933:        MEM parm whose actual parm is a reg, provided it refs
                    934:        the low part of the MEM.
                    935:        (function_cannot_inline_p): Don't inline functions which have
                    936:        aggregate parameters and take their addresses.  This could produce
                    937:        refs to non-low-parts, which copy_rtx_and_substitute can't handle.
                    938: 
                    939:        * c-typeck.c (build_modify_expr): If lhs is COND_EXPR,
                    940:        make a COMPOUND_EXPR to ensure the rhs is computed before the branch.
                    941: 
                    942:        * Implement -pipe.
                    943:        * gcc.c (do_spec_1): `|' is now a special delimiter
                    944:        which goes in the argbuf.
                    945:        When a newline is preceded by a `|', delete it if no -pipe.
                    946:        Otherwise, don't execute yet, and keep scanning.
                    947:        (do_spec): At end, if we have stuff with no newline, execute it.
                    948:        (handle_braces): Implement %{|foo:...}.
                    949:        (execute): If argbuf contains some `|'s, run several processes
                    950:        and pipe them together.
                    951:        (pexecute): new subroutine to make one of the processes.
                    952:        (find_exec_file): new fn to search for program to execute.
                    953:        (record_temp_file): new arg FAIL_ONLY.
                    954:        (store_arg): 2nd arg == 3 means delete file on failure.
                    955:        This is used for output files.
                    956:        (delete_temp_files): delete certain files only if fail.
                    957: 
                    958:        * cccp.c (include_defaults): /usr/include before /usr/local/include.
                    959: 
                    960:        * recog.c (asm_noperands): 1-off in loop checking CLOBBERS
                    961:        when no output operands and PARALLEL.
                    962: 
                    963:        * expmed.c (negate_rtx): Sign-extend the high bits rather than clear.
                    964: 
                    965:        * cse.c (fold_rtx): fold negation of real values.
                    966:        (fold_cc0): fold comparisons on real values.
                    967: 
                    968:        * Makefile (install): Use $(INSTALL) for gcc.1 and files in USER_H.
                    969: 
                    970:        * Handle floating-point problems for cross-compilation.
                    971: 
                    972:        * real.h (CONST_DOUBLE_LOW, etc.): new macros to access CONST_DOUBLE.
                    973:        * varasm.c (immed_double_const, decode_rtx_const): Use these.
                    974:        ({force,clear}_const_double_mem): Likewise.
                    975:        * output-*.c (output_move_double): Use these.
                    976:        * output-m68k.c (standard_{68881,sun_fpa}_constant_p): Likewise.
                    977:        * tm-*.h (PRINT_OPERAND): Use these.
                    978:        * output-i386.c (print_operand): Use these.
                    979:        * final.c (output_addr_const): Likewise.
                    980:        * emit-rtl.c (gen_rtx): Delete special code for CONST_DOUBLE.
                    981: 
                    982:        * real.h (union real_extract): Portable type for storing real as ints.
                    983:        * varasm.c (immed_double_const, decode_rtx_const): Use these.
                    984: 
                    985:        * varasm.c (immed_real_const_1, decode_rtx_const):
                    986:        Don't assume REAL_VALUE_TYPE is 2 ints long.
                    987:        * emit-rtl.c (init_emit_once): Likewise.
                    988: 
                    989:        * real.h (REAL_VALUE_TYPE): Define as `double' if not defined.
                    990:        (REAL_IS_NOT_DOUBLE): Define this if default REAL_VALUE_TYPE not used.
                    991:        (REAL_VALUES_EQUAL, REAL_VALUES_LESS): Define, if not already defined.
                    992:        (REAL_VALUE_LDEXP, REAL_VALUE_ATOF): Likewise.
                    993:        * tree.h (struct tree_real_cst): Use REAL_VALUE_TYPE for the value.
                    994: 
                    995:        * rtl.c (init_rtl): Increase length of CONST_DOUBLE if REAL_VALUE_TYPE
                    996:        needs more space.  Change the rtx_format element to match.
                    997:        * varasm.c (immed_real_const_1): 1st arg now has REAL_VALUE_TYPE.
                    998:        (force_const_mem): Assume a CONST_DOUBLE contains REAL_VALUE_TYPE.
                    999:        * emit-rtl.c (init_emit_once): Likewise.
                   1000:        And use REAL_VALUE_ATOF to get a floating zero.
                   1001:        * optabs.c (expand_float): Use REAL_VALUE_TYPE, REAL_VALUE_LDEXP.
                   1002:        * c-parse.y (yylex): Likewise, and use REAL_VALUE_ATOF.
                   1003:        * fold-const.c (split_tree): Don't accept REAL_CSTs.
                   1004:        (combine, fold_convert, fold): Use REAL_ARITHMETIC if defined;
                   1005:        else don't fold reals if they are not doubles.
                   1006:        * tree.c (build_real_from_int_cst): Likewise.
                   1007:        * print-tree.c (dump) [REAL_IS_NOT_DOUBLE]: output float value
                   1008:        in hex, since we don't know how to do it right.
                   1009: 
                   1010: Sat Dec 31 14:15:13 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1011: 
                   1012:        * optabs.c (init_optabs): Handle new macros {U,}MULSI3_LIBCALL,
                   1013:        DIVSI3_LIBCALL, MODSI3_LIBCALL.
                   1014:        * tm-sparc.h: Define {,U}{MUL,DIV,MOD}SI3 to call Sun's library direct.
                   1015: 
                   1016:        * tm-sun3-nfp.h, tm-sun3-fpa.h: New files.
                   1017: 
                   1018: Fri Dec 30 00:14:36 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1019: 
                   1020:        * cccp.c (main): Certain envvars specify a file to write deps info to.
                   1021: 
                   1022:        * toplev.c (compile_file): Warn about undefined fns declared static.
                   1023: 
                   1024:        * m68k.md (casesi_2 recognizer) [SGS] RTX_INTEGRATED_P test backwards.
                   1025:        * tm-3b1.h (ASM_OUTPUT_CASE_LABEL): Likewise.  Also missing `\'.
                   1026: 
                   1027:        * reload1.c (count_occurrences): New function.
                   1028:        (choose_reload_targets): Don't delete a reload if the same reg
                   1029:        is used elsewhere in the current insn.
                   1030:        (delete_output_reload): code split out from choose_reload_targets.
                   1031: 
                   1032:        * c-typeck.c (build_c_cast): Always put on some operator,
                   1033:        so the cast is never an lvalue for strict ANSI.
                   1034: 
                   1035:        * c-typeck.c (initializer_constant_valid_p): Don't depend on
                   1036:        distinction between NOP_EXPR and CONVERT_EXPR.
                   1037: 
                   1038:        * c-convert.c: Fns reordered; new comments.
                   1039: 
                   1040:        * fold-const.c (fold): If simplifying a NOP_EXPR within a BIT_AND_EXPR,
                   1041:        return a NOP_EXPR.
                   1042:        New var TYPE holds type of expr.
                   1043: 
                   1044:        * c-parse.y (expr_no_commas): Split off cast_expr and unary_expr,
                   1045:        to reject `sizeof (int) foo'.
                   1046: 
                   1047:        * toplev.c (main): Treat plain `-' as input filename.
                   1048: 
                   1049:        * final.c (final): If an insn's output routine returns 0,
                   1050:        it means to output the deleted compare insn immediately preceding.
                   1051: 
                   1052:        * m68k.md (branch insns): Use 0 as 3rd arg for OUTPUT_JUMP
                   1053:        rather than explicitly clearing the overflow flag.
                   1054: 
                   1055:        * tm-i386.h (OUTPUT_JUMP): Really use NO_OV; don't abort.
                   1056:        * i386.md (branch insns): Put real data (sometimes 0) in 3rd arg
                   1057:        of OUTPUT_JUMP.  0 means preceding test may not be deleted.
                   1058:        (lea pattern): Clear the cc's.
                   1059:        * output-i386.c (notice_update_cc): various arith insns set the cc's.
                   1060: 
                   1061: Thu Dec 29 13:22:01 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1062: 
                   1063:        * stmt.c (expand_decl_init): Do nothing for static decls.
                   1064: 
                   1065:        * reload.c (find_reloads_address{,_1}): Return 1 iff entire arg
                   1066:        was reloaded as a whole, else 0.
                   1067:        (find_reload): If find_reloads_address returns 1, don't let that MEM
                   1068:        satisfy a `>' or `<' constraint.
                   1069: 
                   1070:        * m68k.md (cmpmb): Delete special pattern, make cmpqi handle it.
                   1071:        The special pattern couldn't handle reloading the incremented register.
                   1072: 
                   1073:        * integrate.c (copy_rtx_and_substitute): Test BYTES_BIG_ENDIAN,
                   1074:        not BITS...
                   1075: 
                   1076:        * combine.c (subst): Consider big-endian correction
                   1077:        when simplifying (subreg (mem ...) ...).
                   1078: 
                   1079:        * reload.c (find_reloads): Don't crash if matching operands in `asm'
                   1080:        are both read or both write.
                   1081: 
                   1082:        * expr.c (emit_push_insn): Address for movstr must be XINNER, not X.
                   1083: 
                   1084:        * toplev.c (main): Typo parsing `-fno...'.
                   1085: 
                   1086: Wed Dec 28 13:07:21 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1087: 
                   1088:        * toplev.c (rest_of_compilation): `volatile' fns need jump_optimize
                   1089:        for warnings, as if -Wreturn-type.
                   1090:        * c-typeck.c (c_expand_return): Warn about `return' in a `volatile' fn.
                   1091:        * c-decl.c (finish_function): Warn if `volatile' fn can drop thru end.
                   1092: 
                   1093:        * cse.c (canon_reg): Handle nulls as subexpressions.
                   1094:        (fold_rtx, canon_hash, mention_regs, exp_equiv_p): Likewise.
                   1095:        * loop.c (invariant_p, replace_regs, replace_call_address, may_trap_p,
                   1096:        {basic,general}_induction_var): Likewise.
                   1097: 
                   1098:        * expr.c (expand_call): Handle `const' functions:
                   1099:        Local IS_CONST is 1 if function is const.
                   1100:        Attach REG_RETVAL and REG_LIBCALL notes around the call.
                   1101:        Copy fn address to register outside of those notes.
                   1102:        Likewise precompute all parms outside them.
                   1103: 
                   1104:        * expr.c (expand_call): If fn is volatile, emit barrier after the call.
                   1105: 
                   1106:        * c-decl.c (grokdeclarator): Allow function declared const or volatile.
                   1107: 
                   1108: Sat Dec 24 18:40:12 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1109: 
                   1110:        * integrate.c (function_cannot_inline_p): If STRUCT_VALUE_INCOMING
                   1111:        or STRUCT_VALUE is defined, can't inline functions returning BLKmode.
                   1112: 
                   1113: Fri Dec 23 13:26:26 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1114: 
                   1115:        * expr.c (store_constructor): Compute array's size
                   1116:        with int_size_in_bytes.
                   1117: 
                   1118:        * varasm.c (assemble_variable): If shared data, go to data section
                   1119:        before outputting an uninitialized symbol.
                   1120: 
                   1121:        * tm-sequent.h (ASM_OUTPUT_ALIGN_CODE): Missing backslash.
                   1122:        (SHARED_SECTION_ASM_OP): Macro defined.
                   1123:        * tm-seq386.h (SHARED_SECTION_ASM_OP): Macro defined.
                   1124: 
                   1125:        * c-typeck.c (c_expand_asm_operands): Warn if output op is `const'.
                   1126: 
                   1127:        * Fix problem where a stmt expr in an initialization
                   1128:        refers to the variable it is initializing.
                   1129:        * stmt.c (expand_decl_init): New fn split out from `expand_decl'.
                   1130:        * c-decl.c (finish_decl): Call that.
                   1131:        Don't call expand_decl if already done.
                   1132:        (start_decl): Call expand_decl if type is complete already.
                   1133: 
                   1134:        * Makefile (install): Typo in ranlib command.
                   1135: 
                   1136: Thu Dec 22 15:57:12 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1137: 
                   1138:        * tree.h (tree_identifier): New field.
                   1139:        (IDENTIFIER_ERROR_LOCUS): Accessor for it.
                   1140:        * c-parse.y (primary => IDENTIFIER):
                   1141:        Undeclared variable gets one err msg per function it appears in.
                   1142: 
                   1143:        * ns32k.md (andsi3): Delete extra brace.
                   1144: 
                   1145:        * alliant.md, xm-alliant.h, tm-alliant.h, output-alliant.c: New files.
                   1146: 
                   1147:        * combine.c (SUBST, SUBST_INT): Store new field `is_int'.
                   1148:        (copy_substitutions): Don't copy an int as an rtx.
                   1149: 
                   1150:        * Makefile (INSTALL): Install gcc.1 properly.
                   1151: 
                   1152:        * tm-ns32k.h (FUNCTION_PROLOGUE, ASM_OUTPUT_ALIGN_CODE):
                   1153:        Add missing backslashes.
                   1154: 
1.1.1.12  root     1155: Wed Dec 21 02:46:34 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1156: 
                   1157:        * Version 1.32 released.
                   1158: 
                   1159:        * toplev.c (main): Vax pcc enforces goto-less programming
                   1160:        with fatal error.
                   1161: 
                   1162:        * stmt.c (fixup_memory_subreg): New arg INSN says where to emit insns.
                   1163:        (walk_fixup_memory_subreg): Likewise.  All callers changed.
                   1164: 
                   1165: Tue Dec 20 01:26:56 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1166: 
                   1167:        * c-decl.c (start_function): Don't clear TREE_PERMANENT in fn decl.
                   1168:        Make the result decl a permanent node.
                   1169:        (finish_function): Don't clear DECL_RESULT in an inline function.
                   1170:        (duplicate_decls): Don't lose DECL_RESULT or DECL_SAVED_INSNS
                   1171:        or old decl, when defn is followed by redeclaration.
                   1172:        Likewise DECL_ARGUMENTS and DECL_RESULT_TYPE.
                   1173: 
                   1174:        * stmt.c (expand_function_end): End any sequences left unterminated.
                   1175: 
                   1176:        * cse.c (predecide_loop_entry): If "loop" has no label, do nothing.
                   1177: 
                   1178:        * recog.c (asm_noperands): Now return -1 if not that kind of insn.
                   1179:        All callers changed.
                   1180:        * combine.c (check_asm_operands): Calling changes not quite trivial.
                   1181:        * final.c (final): Likewise.
                   1182:        * reload.c (find_reloads): Likewise.
                   1183:        * recog.c (asm_noperands): Other changes:
                   1184:        Loop computing # of SETs in a PARALLEL was off by 1.
                   1185:        Validate all elts of any PARALLEL, to block invalid combinations.
                   1186: 
                   1187:        * ns32k.md (andsi3, andhi3): Make new CONST_INTs; don't clobber old.
                   1188: 
                   1189:        * integrate.c (copy_rtx_and_substitute): When looking in `parm_map',
                   1190:        if our mode mismatches parm's mode, use change_address to extract part.
                   1191:        On BYTES_BIG_ENDIAN machines, adjust the offset.
                   1192: 
                   1193: Mon Dec 19 23:50:14 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1194: 
                   1195:        * cexp.y ('/' and '%' ops): If divide by 0, print error, don't die.
                   1196: 
                   1197: Sun Dec 18 14:03:02 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1198: 
                   1199:        * toplev.c (main): Avoid shadowing I in inner block.
                   1200: 
                   1201:        * flow.c (propagate_block): The insn at the end of a libcall
                   1202:        may be dead, but the libcall might still be needed if the
                   1203:        hard return reg is used later.  Detect this case.
                   1204:        (libcall_dead_p): New fn used to check that the libcall is dead.
                   1205: 
                   1206:        * output-m68k.c, tm-m68k.h (standard_sun_fpa_constant_p): Fn renamed.
                   1207: 
                   1208: Sat Dec 17 13:23:51 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1209: 
                   1210:        * stmt.c (expand_end_bindings): error_with_file_and_line => ..._decl.
                   1211: 
                   1212:        * combine.o (try_combine): Accept combination making a valid
                   1213:        asm with operands.
                   1214:        (check_asm_operands): Recognize asm with operands that are valid.
                   1215: 
                   1216:        * loop.c (strength_reduce): Don't accept a reg as a giv
                   1217:        if the reg was made by loop-optimize.
                   1218: 
                   1219:        * stmt.c (balance_case_nodes): A list of 3 always splits in middle.
                   1220: 
                   1221: Fri Dec 16 17:22:07 1988  Tiemann  (rms at sugar-bombs.ai.mit.edu)
                   1222: 
                   1223:        * sparc.md (fetch from constant address): Split into two patterns,
                   1224:        one fixed point and one floating.
                   1225:        (store at constant address): Handle remembered hi-half differently.
                   1226:        Other bug fixes.
                   1227:        (fix_truncsfsi2): Use f1, not f0, as temp.
                   1228:        (fix_truncdfsi2): Don't clear CC_F1_IS_0.
                   1229: 
                   1230:        * output-sparc.c (singlemove_string): Changed handling of case
                   1231:        where op1 is not memory and op0 has varying address.
                   1232:        (output_fp_move_double): Avoid reloading high half address
                   1233:        in the ldd and std cases with constant address.
                   1234:        (make_f0_contain_0): Handle f0 and f1 individually.
                   1235: 
                   1236:        * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): CONST is now illegitimate.
                   1237: 
                   1238:        * rtl.c (note_stores): Pass entire SET rtx, not flag, as 2nd arg to FN.
                   1239:        * local-alloc.c (reg_is_set): New type for 2nd arg.
                   1240: 
                   1241:        * Makefile: Comment out cc1plus, since not ready for release.
                   1242: 
                   1243: Thu Dec 15 16:39:47 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1244: 
                   1245:        * local-alloc.c (reg_is_set): If a hard reg is clobbered, make it free
                   1246:        before and after the insn.
                   1247:        * stupid.c (stupid_mark_refs): Likewise.
                   1248:        * global-alloc.c (global_conflicts): Likewise.
                   1249:        Use note_stores to call mark_reg_{store,clobber}.
                   1250:        (mark_reg_store): Changed calling conventions
                   1251:        All work done on set/clobbered regs is now done here.
                   1252:        Ignore CLOBBERs.
                   1253:        (mark_reg_clobber): Similar fn, but ignore SETs and handle CLOBBERs.
                   1254:        (regs_set, n_regs_set): New static vars for comm. among the above.
                   1255: 
                   1256:        * stmt.c (expand_asm_operands): call protect_from_queue on operands.
                   1257:        This requires preexpanding the outputs into a vector of rtx's.
                   1258: 
                   1259:        * Makefile (install): cd to $(libdir) before ranlib.
                   1260: 
                   1261:        * c-typeck.c (c_expand_asm_operands): emit_queue at the end.
                   1262: 
                   1263:        * reload.c (find_reloads): Count # alternatives properly for
                   1264:        an asm insn, and check that all operands correspond.
                   1265: 
                   1266:        * loop.c (verify_loop): Reject loops containg setjmps.
                   1267:        * cse.c (cse_main): Don't cse across a call to setjmp.
                   1268: 
                   1269:        * expr.c (expand_expr): Permit any non0 DECL_RTL for a VAR_DECL.
                   1270: 
                   1271:        * stmt.c (balance_case_nodes): Count ranges double when balancing.
                   1272: 
                   1273: Wed Dec 14 13:50:45 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1274: 
                   1275:        * final.c (output_addr_const): Output just `-', not `+-'.
                   1276: 
                   1277:        * make-cc1.com: Update filenames changed to `c-'.
                   1278:        * make-cccp.com: Pass needed -D options when compiling cccp.c.
                   1279:        Use /nomap when linking.
                   1280: 
                   1281:        * loop.c (strength_reduce): Paraphrase setting NEW_REG, for Iris cc.
                   1282: 
                   1283:        * output-m68k.c (output_move_const_single): %'s must be doubled twice.
                   1284: 
                   1285:        * loop.c (record_giv): A giv can be replaceable if its uses are
                   1286:        all in the same basic block as its sole setting.
                   1287:        (last_use_this_basic_block): Subroutine to test that.
                   1288: 
                   1289: Tue Dec 13 13:41:57 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1290: 
                   1291:        * expr.c (do_store_flag): Allow for COMPARISON to be a const_int.
                   1292: 
                   1293:        * c-decl.c (pushdecl): Warn if type mismatch with another external decl
                   1294:        in a global scope.
                   1295: 
                   1296:        * fixincludes: Fix typo in msg of deleting unchanged file.
                   1297: 
                   1298:        * Makefile (insn-*): Use two-step rules with a separate time-stamp file
                   1299:        to avoid rerunning gen* unless md has changed again.
                   1300: 
                   1301: Mon Dec 12 13:32:05 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1302: 
                   1303:        * i386.md (tstsf, tstdf, cmpsf, cmpdf): Use fnstsw, not fstsw.  Faster.
                   1304: 
                   1305:        * tm-vax.h (ASM_OUTPUT_REG_POP): Use correct asm syntax for pop insn.
                   1306: 
                   1307:        * combine.c (subst): Handle (subreg (mem)) by making a changed mem.
                   1308:        This avoids producing any (subreg (mem))s except in the special
                   1309:        case they are supposed to be made here.
                   1310:        Also set undo_storage in a couple of cases that forgot to.
                   1311: 
                   1312:        * reload.c (push_reload): When handling (SUBREG (MEM)) for IN,
                   1313:        if there is an OUT, make that a separate reload.
                   1314:        Return its number in `output_reloadnum'
                   1315:        (find_reloads): When pushing matching-reloads, note that the
                   1316:        two operands can have different reload-numbers.
                   1317: 
                   1318:        * tm-3b1.h (ASM_OUTPUT_CASE_END): Test flag on TABLE, not its pattern.
                   1319:        (ASM_OUTPUT_CASE_LABEL): If /i flag set, don't output the dummy entry
                   1320:        since the fetcher-insn will not be off by 2 in this case.
                   1321:        * m68k.md (casesi_2 recognizer): For 3b1 syntax, compensate for that.
                   1322: 
                   1323: Sun Dec 11 12:51:49 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1324: 
                   1325:        * genrecog.c (try_merge_2): No longer put all explicit decompositions
                   1326:        before all predicates.  Patterns are now tested in the order written.
                   1327:        * vax.md: Move the push-or-move-address patterns to the end.
                   1328:        * m68k.md: Move load-address pattern to end.
                   1329:        Rearrange the special-case movsi patterns.
                   1330:        * ns32k.md: Move special load-reg-17 pattern before movsi.
                   1331:        * i386.md: Move the QI and DI push patterns to logical places.
                   1332:        This should not actually change anything.
                   1333: 
                   1334:        * stmt.c: Add Andy Hitchins's binary-tree case statement code.
                   1335:        (struct case_stmt): case_list field is now a case_node chain.
                   1336:        Replace has_default field with default_label field.
                   1337:        (pushcase, pushcase_range): Build case_list in its new type,
                   1338:        and keep it sorted.
                   1339:        (expand_end_case): Use case_list in its new type.
                   1340:        Count a range of > 1 as two cases, when choosing strategy.
                   1341:        (group_case_nodes, balance_case_nodes): New fns, rearrange case_list.
                   1342:        (node_has_{low,high}_bound, node_is_bounded): New fns test
                   1343:        relationships of values of various case_list tree nodes.
                   1344:        (emit_jump_if_reachable): New fn.
                   1345:        (emit_case_nodes): Emit compares and jumps based on tree of case_list.
                   1346: 
                   1347:        * cccp.c (finclude): Handle nonordinary files (stat doesn't give size).
                   1348: 
                   1349:        * tm-3b1.h (PRINT_OPERAND_ADDRESS): Handle case of breg and no ireg.
                   1350: 
                   1351: Sat Dec 10 16:30:32 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1352: 
                   1353:        * sparc.md (movstrsi): Separate define_expand and define_insn;
                   1354:        clobber some pseudos to get temp regs to use in the output.
                   1355:        * output-sparc.c (output_block_move): Use those temp regs,
                   1356:        guaranteed to be free.
                   1357: 
                   1358:        * sparc.md (andcc patterns for bitfields from memory):
                   1359:        Test immed. arg for being in range.
                   1360:        (load DFmode constant): Use %m for output in one case.
                   1361:        * output-sparc.c (singlemove_string, output_move_double): Likewise.
                   1362: 
                   1363:        * output-sparc.c (singlemove_string): New case for mem-to-mem move.
                   1364: 
                   1365: Fri Dec  9 11:42:15 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1366: 
                   1367:        * stupid.c (stupid_mark_refs): for CLOBBER of a pseudo,
                   1368:        it is born just before this insn and dies just after.
                   1369: 
                   1370:        * tm-vax.h (NOTICE_UPDATE_CC): For aob, sob insns, forget the cc's.
                   1371: 
                   1372:        * basic-block.h (REG_BLOCK_UNKNOWN, REG_BLOCK_GLOBAL): Move defn here.
                   1373:        * local-alloc.c: Use them.
                   1374: 
                   1375:        * c-decl.c (store_parm_decls): Additional explanatory message
                   1376:        for some prototype mismatches.
                   1377: 
                   1378:        * gnulib.c (SItype): New macro used instead of `int'
                   1379:        for SImode operands and values.  Definition is `long int'.
                   1380: 
                   1381: Thu Dec  8 18:45:48 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1382: 
                   1383:        * reload.c (operands_match_p): Move the label `slow' so that
                   1384:        it doesn't cause a REG and a SUBREG to be compared wrong.
                   1385: 
                   1386:        * toplev.c (compile_file): Output a label `gcc_compiled.' for GDB.
                   1387:        If new macro ASM_IDENTIFY_GCC is defined, run that instead.
                   1388:        * tm-3b1.h (ASM_IDENTIFY_GCC): Define this as no-op.
                   1389: 
                   1390: Wed Dec  7 12:20:42 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1391: 
                   1392:        * i386.md (adddf3): Typo: paren was in a constraint.
                   1393: 
                   1394:        * c-decl.c (grokparms): Avoid duplicate msgs for incomplete type ptrs.
                   1395: 
                   1396:        * gnulib.c: Rename all fns to start with `__'.
                   1397:        * optabs.c, expr.c: Rename all references.
                   1398: 
                   1399:        * gnulib.c (__cmpdi2, __ucmpdi2): New fns.
                   1400:        * optabs.c (emit_cmp_insn): Use them.
                   1401: 
                   1402:        * Makefile (stage*): Ignore errors on the main `mv' (for cc1plus).
                   1403:        Run ranlib if we have to copy gnulib.
                   1404: 
                   1405:        * expmed.c (expand_divmod): Split `label' into several local vars.
                   1406: 
                   1407:        * jump.c (jump_back_p): Do nothing unless cc's were set from integers.
                   1408: 
                   1409: Tue Dec  6 12:00:21 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1410: 
                   1411:        * c-parse.y (extend_token_buffer): Use xrealloc, not realloc.
                   1412: 
                   1413:        * integrate.c (output_inline_function): fix args of expand_function_end
                   1414:        (expand_inline_function): Add missing arg to expand_end_bindings.
                   1415: 
                   1416:        * cse.c (cse_insn): Add missing MODE arg to canon_hash.
                   1417: 
                   1418:        * reload1.c (reload_as_needed): Del. extra arg of choose_reload_targets
                   1419:        (reload): Add missing MODE arg to immediate_operand.
                   1420: 
                   1421:        * expmed.c (expand_mult): Delete extra arg to expand_unop.
                   1422: 
                   1423:        * c-typeck.c (default_conversion):
                   1424:        Add missing NOCONVERT arg to build_unary_op.
                   1425: 
                   1426:        * c-decl.c (duplicate_decls, finish_struct): Add missing arg
                   1427:        KNOWN_ALIGMENT to layout_decl.
                   1428:        * stor-layout.c (layout_record): Likewise.
                   1429:        * varasm.c (assemble_variable): Likewise.
                   1430: 
                   1431:        * dbxout.c (dbxout_init): Add missing LOCAL arg to dbxout_symbol.
                   1432: 
                   1433:        * expr.c (clear_storage): Remove excess arg to emit_move_insn.
                   1434: 
                   1435:        * loop.c (consec_sets_invariant_p): Add parens in hairy if-condition.
                   1436: 
                   1437:        * fold-const.c (fold): Typo, missing `case'.
                   1438: 
                   1439:        * cccp.c (main): Typo handling `-I-' option.
                   1440: 
                   1441:        * tm-i386.h (NO_FUNCTION_CSE): Define this; cse is said to slow
                   1442:        things down with less than 7 calls.
                   1443: 
                   1444:        * stmt.c (fixup_var_refs_insn): When scanning the reg-notes,
                   1445:        don't touch other insns they point at.
                   1446: 
                   1447:        * expr.c (do_jump): Use invert_exp, not reverse_condition,
                   1448:        to invert sense of a jump.
                   1449:        * jump.c reverse_condition now static, invert_exp now global.
                   1450: 
                   1451: Mon Dec  5 10:51:39 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1452: 
                   1453:        * tm-sun386.h (ASM_FILE_START): In the .file arg, exclude directories.
                   1454: 
                   1455:        * stmt.c (expand_expr_stmt): If -W, warn if stmt has no side effect.
                   1456: 
                   1457:        * cccp.c (monthnames): Capitalize each name.
                   1458: 
                   1459:        * rtl.def: New code MATCH_OPERATOR.
                   1460:        * genconfig.c (walk_insn_part): Handle it.
                   1461:        * genextract.c (walk_rtx): Handle it.
                   1462:        * genpeep.c (match_rtx): Handle it.
                   1463:        * genrecog.c (add_to_sequence): Handle it.
                   1464:        * genemit.c (max_operand_1, gen_exp, gen_expand): Handle it.
                   1465:        * genoutput.c (scan_operands): Handle it.
                   1466:        (insn_n_alternatives): New array in the output.
                   1467:        (struct data): New slots n_alternatives and op_n_alternatives.
                   1468:        (scan_operands, gen_insn, gen_peephole):
                   1469:        Record op_n_alternatives for each operand.
                   1470:        (output_epilogue): Verify that all operands have same # of alternatives
                   1471:        Also output insn_n_alternatives.
                   1472: 
                   1473:        * reload.c (find_reloads): use insn_n_alternatives to control
                   1474:        the loop over all alternatives.
                   1475:        An empty constraint or empty alternative in a constraint
                   1476:        is always satisfied.
                   1477:        * recog.c (constrain_operands): Likewise.
                   1478: 
                   1479:        * c-decl.c (lang_decode_option): For each -f option, recognize a form
                   1480:        with `no-' and a form without, as contraries.
                   1481: 
                   1482:        * toplev.c (main): Decode -f options using a table
                   1483:        so that each option automatically has a `no-' variant.
                   1484: 
                   1485:        * combine.c (try_combine): Give up if I1 or I2 follows a compare insn.
                   1486: 
                   1487: Sun Dec  4 12:00:36 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1488: 
                   1489:        * varasm.c (data_section): If flag_shared, use SHARED_SECTION_ASM_OP
                   1490:        if that is defined.
                   1491: 
                   1492:        * cccp.c (include_default): Add /usr/local/include.
                   1493: 
                   1494:        * Makefile (install): Install the makefile.
                   1495: 
                   1496:        * varasm.c (assemble_external): New fn to declare an external.
                   1497:        (assemble_variable): Output nothing for externals.
                   1498:        * c-parse.y (primary => identifier): Call assemble_variable on 1st use.
                   1499: 
                   1500:        * toplev.c (main): Print version info on stderr, not stdout.
                   1501:        * tm-*.h (TARGET_VERSION): Likewise.
                   1502: 
                   1503:        * tm-isi68.h, tm-news800.h: Rename __HAVE_FPU__ to __HAVE_68881__.
                   1504: 
                   1505:        * sparc.md (seq, etc): Entire page rewritten by Tiemann
                   1506:        to avoid incorrect use of PARALLEL.
                   1507:        * output-sparc.c (gen_scc_insn): Corresponding changes.
                   1508: 
                   1509: Sat Dec  3 00:03:19 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1510: 
                   1511:        * gcc.c (do_spec_1): %P is an ANSIfied form of %p:
                   1512:        put __ at beg and end of each predefined macro name.
                   1513: 
                   1514:        * tm-sun3.h (CPP_SPEC): Don't define -Dmc68010, etc., if -ansi.
                   1515:        * tm-sun2.h (CPP_SPEC): Likewise.
                   1516: 
                   1517:        * c-decl.c (shadow_tag): Don't complain if declare a new tag
                   1518:        at top level, or if redeclare a tag.
                   1519: 
                   1520:        * c-decl.c (grokparms): Warn if parm points to incomplete type.
                   1521:        (We already err if its own type is incomplete.)
                   1522: 
                   1523:        * stmt.c (fixup_var_refs_insns): Fix any (SUBREG (MEM)) in REG_NOTES.
                   1524:        (walk_fixup_memory_subreg): New subroutine used for this.
                   1525: 
                   1526:        * integrate.c (copy_rtx_and_substitute): Handle MEM refs to the middle
                   1527:        of a stack-parm--at least in the case of reading the parm.
                   1528: 
                   1529:        * rtl.c (rtx_equal_p): REG_FUNCTION_VALUE_P is significant
                   1530:        only until end of reload pass.
                   1531:        * toplev.c (rest_of_compilation):
                   1532:        Control that by setting new var rtx_equal_function_value_matters.
                   1533: 
                   1534:        * c-decl.c (init_decl_processing): Don't declare the builtins
                   1535:        that aren't really implemented.
                   1536: 
                   1537:        * output-sparc.c (output_move_double): "in structure" implies
                   1538:        8-byte alignment only for DFmode, not for DImode.
                   1539: 
                   1540:        * final.c (output_operand_lossage): Cleaner text for error msg.
                   1541:        No longer need to write text into .s file, now that linenum is correct.
                   1542: 
                   1543:        * c-decl.c (pushdecl): -traditional stops warning
                   1544:        about "declared extern, later static".
                   1545: 
                   1546:        * c-typeck.c (build_indirect_ref): Don't handle flag_volatile here.
                   1547:        * expr.c (expand_expr): Handle it here, in INDIRECT_REF case.
                   1548:        This prevents -fvolatile from causing additional warnings.
                   1549: 
                   1550:        * output-sparc.c (output_load_address): Allow REG+REG for operands[3].
                   1551: 
                   1552:        * m68k.md (movsi): If we output the label LIn,
                   1553:        set the RTL_INTEGRATED flag in the switch table's pattern.
                   1554:        * tm-3b1.h (ASM_OUTPUT_CASE_END): Define LD%n only if LI%n was output.
                   1555: 
                   1556:        * i386.md (push-and-add pattern): Comment it out.
                   1557:        It's said to result in slower code.
                   1558: 
                   1559:        * i386.md (tstqi, tsthi, tstsi): Output real `test' insn if op is reg.
                   1560: 
                   1561:        * i386.md (push for DI): Allow `oiF' for 2nd operand.
                   1562: 
                   1563: Fri Dec  2 13:57:35 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1564: 
                   1565:        * i386.md (movdi): Allow F constraint for 2nd operand.
                   1566: 
                   1567:        * i386.md (push for QI): define pattern to push a QImode
                   1568:        which really uses pushw and therefore really pushes a halfword.
                   1569:        * tm-i386.h (PUSH_ROUNDING): Round up to multiple of 2.
                   1570: 
                   1571:        * gcc.c (do_spec_1): Handle %e, which means report an error.
                   1572:        Use it to prohibit -pg with -fomit-frame-pointer.
                   1573: 
                   1574:        * tree.h (DECL_RESULT_TYPE): New field in FUNCTION_DECL holds the type
                   1575:        of the widened returned value (not nec. the declared return type).
                   1576:        * c-decl.c (start_function): Set DECL_RESULT_TYPE.
                   1577:        * integrate.c (expan_inline_function): Use that, not DECL_RESULT.
                   1578: 
                   1579: Thu Dec  1 16:44:10 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1580: 
                   1581:        * cse.c (fold_rtx): When reordering constant args, insist on
                   1582:        manifest constants; regs with known contents won't do.
                   1583: 
                   1584:        * i386.md (mulsi3): Don't use rtx_equal_p to compare regs.
                   1585: 
                   1586:        * expr.c (move_by_pieces_1): Don't call change_address
                   1587:        if address is autoinc, since that may not be memory_address_p.
                   1588:        Subroutine-macro add_offset deleted.
                   1589: 
                   1590:        * optabs.c (bcc_gen_fctn, setcc_gen_fctn): Moved to this file.
                   1591:        (init_optabs): Init those tables here.
                   1592:        * expr.c (init_conditions): Not here.
                   1593: 
                   1594:        * stmt.c (assign_stack_local): Make a list of all stack slots.
                   1595:        * emit-rtl.c (unshare_all_rtl): Unshare all the stack slots.
                   1596: 
                   1597:        * final.c (final): Handle BARRIER with ASM_OUTPUT_ALIGN_CODE.
                   1598:        * tm-ns32k.h (ASM_OUTPUT_ALIGN_CODE): Align to 4-byte bdry.
                   1599: ??     * tm-sequent.h (ASM_OUTPUT_ALIGN_CODE): Override: just 2-byte bdry.
                   1600: 
                   1601:        * tm-m68k.h (PRINT_OPERAND): use new macros to print floats.
                   1602:        (ASM_OUTPUT_FLOAT_OPERAND): New macro.
                   1603:        (ASM_OUTPUT_DOUBLE_OPERAND): New macro.
                   1604:        * tm-sun3.h: Override those macros, to check for infinities.
                   1605: 
                   1606: Wed Nov 30 06:35:47 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1607: 
                   1608:        * tm-ns32k.h (FUNCTION_{PRO,EPI}LOGUE): if no frame pointer,
                   1609:        do explicit push or pop insns.
                   1610: 
                   1611:        * tm-genix.h (PRINT_OPERAND): Fix typo `file'.
                   1612:        Extedn decl for paren_base_reg_printed.
                   1613:        (MAIN_FUNCTION_PROLOGUE): Deleted.
                   1614:        (ASM_OUTPUT_EXTERNAL): Defined.
                   1615: 
                   1616:        * c-parse.y (yyerror): Better error msg for unprintable char in token.
                   1617:        (primary => identifier): Set TREE_USED if implicit decl made.
                   1618: 
                   1619:        * Makefile (cleanlinks): New target.
                   1620:        (INSTALL): New variable, has program used for installing files in sys.
                   1621: 
                   1622:        * output-ns32k.c (print_operand_address): If addr is sum of 2 consts,
                   1623:        output ADDR first, then OFFSET.
                   1624: 
                   1625:        * ns32k.md (addsi3): Allow adding const+reg with result in another reg.
                   1626: 
                   1627:        * tm-seq386.h (FUNCTION_PROFILER): Provide overriding definition.
                   1628: 
                   1629:        * tm-hp9k320.h: Alternate ASM_SPEC if using GAS.
                   1630:        Define STANDARD_STARTFILE_PREFIX if using GAS.
                   1631:        (FUNCTION_PROLOGUE): on 68020 for big stack frame use link.l.
                   1632: 
                   1633:        * gcc.c (STANDARD_STARTFILE_PREFIX): New cust. macro replaces `/lib/'.
                   1634: 
                   1635:        * va-sparc.h, va-spur.h: Prefix non-interface identifiers with `__'.
                   1636: 
                   1637:        * optabs.c (init_optabs): Don't set up libcalls for ftrunc_optab
                   1638:        because (1) they aren't supported and (2) they are never used.
                   1639: 
                   1640:        * gnulib.c (__builtin_saveregs): If not sparc, define the symbol anyway
                   1641:        to avoid a warning in ranlib.
                   1642: 
                   1643: Mon Nov 28 01:46:12 1988  Michael Tiemann  (mdt at choctaw)
                   1644: 
                   1645:        * c-parse.y (yylex): Typo, `=' for `==' making wide strings.
                   1646: 
                   1647:        * sparc.md (various places): make sure that all patterns which store
                   1648:        can store using const0_rtx (i.e., make all operands to `st' %rx).
                   1649: 
                   1650:        * output-sparc.c (various places): changed dispatches on SYMBOL_REF
                   1651:        to dispatches on CONSTANT_ADDRESS_P since we now recognize any CONST
                   1652:        (and not just SYMBOL_REFs).  Don't recognize special case CONST for
                   1653:        output_block_move.  Compiler doesn't have enough information to use
                   1654:        it.
                   1655: 
                   1656:        * stmt.c (expand_fixup): If the control stack is nested within the
                   1657:        nesting stack, then no fixup is needed.  Otherwise, compiler must
                   1658:        check for possible fixups between the current nesting stack and the
                   1659:        nesting stack that immediately contains the control stack.
                   1660: 
                   1661:        * stmt.c (expand_function_start): functions which are nested use
                   1662:        DECL_CONTEXT.  For these functions, test that their DECL_CONTEXT is
                   1663:        a LET_STMT node.
                   1664: 
                   1665:        * tree.h: declare `build_offset_type'.
                   1666: 
                   1667: Sun Nov 27 10:34:53 1988  Richard Stallman  (mdt at yahi)
                   1668: 
                   1669:        * output-sparc.c (output_move_double):
                   1670:        Don't try to use ldd/std if OP1 is a constant.
                   1671:        * sparc.md (movdi): Allow immediate args moved into general regs.
                   1672: 
                   1673:        * c-decl.c (grokparms): Reject incomplete parm types even if just
                   1674:        declarating, not defining.  Change types to error_mark_node
                   1675:        in both the PARM_DECL and the list of types.
                   1676: 
                   1677:        * dbxout.c (dbxout_type): It's not a bug if a RECORD_TYPE
                   1678:        has a typedef as its TYPE_NAME.  That happens in C++.
                   1679: 
                   1680:        * Make each `asm' with operands record its source file/line
                   1681:        with reg-notes.  It doesn't work to emit a special note before the insn
                   1682:        because the insn can be moved by loop_optimize.
                   1683:        * stmt.c (expand_asm_operands): New args FILENAME, LINE.
                   1684:        Record them in the insn, in reg notes.
                   1685:        * c-typeck.c (c_expand_asm_operands): New args, passed along.
                   1686:        * c-parse.y: Pass those args.
                   1687:        (maybe_type_qual): Line #s for asm stmts emitted like all others.
                   1688:        * rtl.h (REG_ASM_FILE, REG_ASM_LINE): New kinds of reg notes.
                   1689:        * toplev.c (error_for_asm): Get the info from those notes.
                   1690: 
                   1691:        * reload.c (find_reloads): Don't clear BADOP for a reg letter
                   1692:        if the alternative ultimately doesn't allow any regs.
                   1693: 
                   1694:        * reload.c (find_reloads): If an `asm' insn gets an error,
                   1695:        change it to a USE to avoid duplicate error msgs or later trouble.
                   1696: 
                   1697:        * reload.c (find_reloads_address): Reloading a constant address,
                   1698:        specify Pmode as the mode for push_reloads, in case of CONST_INT.
                   1699: 
                   1700:        * expr.c (emit_push_insn): Fix calc. of space needed when PARTIAL > 0.
                   1701:        Both scalar case and BLKmode case needed fixing.
                   1702: 
                   1703:        * sparc.md (load/store constant address):
                   1704:        Moving DF from mem to cpu regs, don't go via %f0.
                   1705:        Don't use std/ltd if alignment is wrong or uncertain.
                   1706: 
                   1707: Sun Nov 27 10:34:53 1988  Michael Tiemann  (mdt at yahi)
                   1708: 
                   1709:        * reload.c (push_reload): Allow VOIDmode for INMODE, OUTMODE;
                   1710:        default the mode from the operand values.
                   1711: 
                   1712:        * sparc.md: remove patterns which generate annulled branch insns.
                   1713:        They are correct, but those insns confuse GDB.
                   1714: 
                   1715:        * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS):
                   1716:        Treat any constant address like a SYMBOL_REF.
                   1717:        * sparc.md: Check for CONSTANT_ADDRESS_P rather than SYMBOL_REF.
                   1718: 
                   1719:        * sparc.md: Peepholes now accept SYMBOL_REF addresses.
                   1720:        The output routine can now split them properly even as delay insns.
                   1721: 
                   1722:        * print-tree.c (dump): added entry for METHOD_TYPE and
                   1723:        METHOD_CALL_EXPR.  Also added entry for WITH_CLEANUP_EXPR.  Suggest
                   1724:        that we make first_rtl of WITH_CLEANUP_EXPR 2 instead of 1.
                   1725: 
                   1726: Sun Nov 27 00:15:33 1988  Michael Tiemann  (mdt at yahi)
                   1727: 
                   1728:        * print-tree.c (dump): added entry for OP_IDENTIFIER.
                   1729: 
                   1730:        * tree.c (build_op_identifier): new function.  Needed because
                   1731:        `build_nt' expects an "e" node, but OP_IDENTIFIER is an "x" node.
                   1732: 
                   1733:        * store_layout.c (layout_record): use DECL_FIELD_CONTEXT instead of
                   1734:        DECL_CONTEXT.
                   1735: 
                   1736:        * tree.h (DECL_FIELD_CONTEXT): new macro.  Points to the type that a
                   1737:        FIELD_DECL is a member of.  For C, this is just DECL_CONTEXT.
                   1738: 
                   1739:        * tree.c (build_method_type): typo used "==" to assign basetype to
                   1740:        TYPE_METHOD_BASETYPE with predictably poor results.
                   1741: 
                   1742: Sat Nov 26 22:55:32 1988  Michael Tiemann  (mdt at yahi)
                   1743: 
                   1744:        * output-sparc.c (output_sized_memop): new function to output a load
                   1745:        or store insn based on the size of the operand loaded or stored.
                   1746:        (make_f0_contain_0): use info from condition codes to decide whether
                   1747:        the register %f0 needs to have 0 loaded from memory or not in order
                   1748:        to contain zero.
                   1749:        (gen_scc_insn): new function used by define_expands for
                   1750:        set-on-condition-code insns.
                   1751:        (output_delay_insn): now knows how to handle load and store
                   1752:        scheduling when the load or store operation takes two insns instead
                   1753:        of one.  The rewrite is now understands is this:
                   1754: 
                   1755:          sethi %hi(address),%g1        -> sethi %hi(address),%g1
                   1756:          ld/st [%g1+%lo(address)],%reg -> b target
                   1757:          b     target                  -> ld/st [%g1+%lo(address)],%reg
                   1758:          nop                           -> ;; gone
                   1759: 
                   1760:        * jump.c (reverse_condition): make this function publicly visible,
                   1761:        now needed in expr.c.
                   1762: 
1.1.1.13  root     1763:        * output-sparc.c (reg_or_0_operand): new function, returns nonzero
1.1.1.12  root     1764:        if operand is const0_rtx or a register of specified mode.
                   1765:        (hardreg): deleted.
                   1766: 
                   1767:        * expr.c, stmt.c: fixed random syntax errors.
                   1768: 
                   1769:        * tree.c (build_method_type): now corresponds to defn in tree.def
                   1770:          expr.c (expand_call): removed code to get FUNCTION_TYPE from
                   1771:          METHOD_TYPE.  This should probably be looked at harder.
                   1772: 
                   1773:        * tree.def (METHOD_TYPE): Changed definition so that TREE_TYPE (m)
                   1774:        (where m is a METHOD_TYPE) is the type of the return value of the
                   1775:        method, not the FUNCTION_TYPE from which the METHOD_TYPE is derived.
                   1776:        
                   1777:        * Makefile: Changed target of BINDIR from /usr/local to
                   1778:        /usr/local/bin.
                   1779: 
                   1780: Sat Nov 26 16:29:22 1988  Michael Tiemann  (mdt at chickasaw)
                   1781: 
                   1782:        * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): Allow any SYMBOL_REF.
                   1783:        (NOTICE_UPDATE_CC): Remember high half of %g1 as a "condition code"
                   1784:        to avoid reloading it if it does not change.
                   1785:        (NOTICE_UPDATE_CC): Test SET_SRC, not SET_DEST, for a CALL rtx.
                   1786:        (PRINT_OPERAND): New code-letter `m' says output operand as an address.
                   1787: 
                   1788:        * toplev.c (flag_syntax_only): New flag variable.
                   1789:        * flags.h: Likewise.
                   1790: 
                   1791:        * toplev.c (error_with_decl): Extra arg, passed to fprintf.
                   1792:        (warning_with_decl): Likewise.
                   1793: 
                   1794:        * tree.c (build_offset_type): New function.
                   1795: 
                   1796:        * tree.h (TYPE_METHOD_BASETYPE): New name for TYPE_METHOD_CLASS.
                   1797:        Uses in tree.c and... renamed.
                   1798: 
                   1799:        * combine.c (SUBST_INT): New macro, for replacing an int.
                   1800:        (subst): Collapse nested SUBREGs even if SUBREG_WORDs are not 0.
                   1801: 
                   1802:        * expr.c (bcc_gen_fctn, setcc_gen_fctn): new tables,
                   1803:        initialized in init_comparisons.
                   1804:        Used in expand_expr, do_jump, do_store_flag
                   1805:        instead of explicit construction of a jump.
                   1806: 
                   1807:        * expr.c (save_noncopied_parts): New function.
                   1808: 
                   1809:        * expr.c (expand_expr):
                   1810:          ARRAY_REF: Special case for array of constants.
                   1811:          WITH_CLEANUP_EXPR: Handle it.
                   1812:          INIT_EXPR: Case deleted.
                   1813:          MODIFY_EXPR: Use save_noncopied_parts.
                   1814: 
                   1815:        * expr.c (expand_call): blkmode_parms_forced can be >0
                   1816:        even when no stack arg space otherwise needed.
                   1817:        Don't use a hard reg as a target if there are cleanups.
                   1818: 
                   1819:        * stmt.c (struct block): New elt. outer_cleanups.
                   1820:        (struct case): New elt. num_ranges.
                   1821:        (struct fixup): Changed meaning of cleanup_list_list.
                   1822:        Changes in expand_fixup, fixup_gotos.
                   1823:        (expand_fixup): Detect some internal forward-jumps
                   1824:        that need no fixups--for speed.
                   1825:        (fixup_gotos): New arg THISBLOCK.
                   1826:        (expand_expr_stmt): Handle flag_syntax_only.
                   1827:        (use_variable): No longer static.
                   1828:        (use_variable_after): new fn.
                   1829:        (expand_end_bindings): handle cleanups like a stack level.
                   1830:        (expand_decl): Handle a cleanup with no decl.
                   1831:        (move_cleanups_up): Preserve relative order of cleanups.
                   1832:        (expand_anon_union_decl): New fn.
                   1833:        (pushcase): New fast clause if no ranges yet.
                   1834:        (pushcase_range): Turned on.
                   1835:        (expand_function_start): New temp var `fntype'.
                   1836:        Set TREE_USED for a parm we are ignoring.
                   1837:        (expand_function_end): Really use the `filename' arg.
                   1838:        Use use_variable_after for SAVE_EXPR regs.
                   1839: 
                   1840:        * dbxout.c (dbxout_type): Handle OFFSET_TYPE.
                   1841: 
                   1842:        * gnulib.c (__builtin_new, etc.): Support for C++.
                   1843: 
                   1844:        * emit-rtl.c (next_insn, prev_insn): New fns.
                   1845: 
                   1846: Sat Nov 26 16:29:22 1988  Richard Stallman  (mdt at chickasaw)
                   1847: 
                   1848:        * tree.h (TREE_LANG_FLAG_[1234]): New attributes.
                   1849:        (TYPE_METHOD_BASETYPE): New name for TYPE_METHOD_CLASS.
                   1850:        (TYPE_OFFSET_BASETYPE): New macro.
                   1851:        (NUM_TREE_CODE): New macro.
                   1852:        (TYPE_NONCOPIED_PARTS): new field in a type-node.
                   1853: 
                   1854:        * varasm.c (make_decl_rtl): Split out from assemble_variable.
                   1855:        (assemble_variable): No longer creates the rtl.
                   1856:        No longer handles policy of whether to output tentative decl yet.
                   1857:        (output_constant_def): Don't lose if wasn't temp allocation
                   1858:        when this was called.
                   1859:        (output_constant): Handle REFERENCE_EXPR.
                   1860: 
                   1861:        * Makefile (BISONFLAGS): new variable.
                   1862:        (prefix): New variable, used in bindir and libdir.
                   1863:        (C_OBJS, CPLUS_OBJS): New vars, split off from OBJS.
                   1864:        (LIBFUNCS): C++ support functions added.
                   1865:        (CPLUS_TREE_H): New variable.
                   1866:        (cc1plus): New target.
                   1867:        (lang_c, lang_cplus): Combines all targets for one language.
                   1868:        (gplus.info): New target.
                   1869:        (cplus-*.o): New targets.
                   1870:        (realclean): Handle new C++ files and recent renamings.
                   1871:        (install, TAGS): Likewise.
                   1872: 
                   1873:        * print-tree.c (prtypeinfo): Handle TREE_LANG_FLAG_[1-4].
                   1874: 
                   1875:        * tm-sparc.h (ASM_OUTPUT_DOUBLE): Special case for infinity.
                   1876:        (ASM_OUTPUT_FLOAT): Likewise.
                   1877: 
                   1878:        * gcc.c: Don't define __GNU__.
                   1879:        For .cc files, pass -+ to cpp, and don't handle -ansi.
                   1880:        Use cc1plus as name of compiler for .cc files.
                   1881: 
                   1882:        * stor-layout.c (layout_type): abort if given a LANG_TYPE node.
                   1883:        (layout_union): Complain if union has basetypes or static members.
                   1884:        (layout_record): Handle anonymous union members.
                   1885: 
                   1886:        * tree.def (LANG_TYPE): New tree code for language-specific purposes.
                   1887:        (WITH_CLEANUP_EXPR): New tree code for expressions whose values
                   1888:        need to be cleaned up when they are deallocated.
                   1889:        (OP_IDENTIFIER): New tree code for certain C++ purposes.
                   1890: 
                   1891:        * toplev.c (rest_of_decl_compilation): Call make_var_rtl
                   1892:        before assemble_variable.
                   1893: 
                   1894: Wed Nov 23 02:15:45 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1895: 
                   1896:        * xm-sunos4.h: Rename included config files to xm-*.
                   1897:        * xm-*.h: Likewise.
                   1898: 
                   1899:        * fixincludes: Avoid altering args to names other than CTRL
                   1900:        that end in ...CTRL.
                   1901:        If a file isn't actually changed, delete the copy.
                   1902: 
                   1903: Mon Nov 21 12:48:22 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1904: 
                   1905:        * loop.c (move_movables): Never move a reg w/ # > old_max_reg.
                   1906:        (strength_reduce): For nonreplaceable giv, put insn to load it
                   1907:        after the insn that used to compute it, in case the latter
                   1908:        is the last of a libcall sequence.
                   1909: 
                   1910:        * stmt.c (expand_function_end): If returning BLKmode, also copy
                   1911:        address where value is returned to the place that GDB will
                   1912:        expect to see it after the return.
                   1913: 
                   1914:        * c-parse.y (readescape): Warn about hex constant out of range
                   1915:        for a target integer.
                   1916:        (yylex): Warn about escape out of range for non-wide char or string.
                   1917:        Use a buffer of ints to read a wide string.
                   1918: 
1.1.1.11  root     1919: Sat Nov 19 02:18:02 1988  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   1920: 
                   1921:        * Version 1.31 released.
                   1922: 
                   1923:        * sparc.md: Change `K' to `I' in all constraints.
                   1924: 
                   1925:        * loop.c (gen_iv_mult): Handle TARGET==0.
                   1926: 
                   1927:        * c-decl.c (duplicate_decls): Undo last change.
                   1928: 
                   1929:        * c-decl.c (pushdecl): Instead of that change,
                   1930:        save old-decl's file/line before calling duplicate_decls,
                   1931:        and pass them later to warning_with_file_and_line.
                   1932:        * toplev.c (warning_with_file_and_line): New fn.
                   1933: 
                   1934: Fri Nov 18 13:07:06 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1935: 
                   1936:        * stmt.c (fixup_var_refs_1): (SUBREG (MEM)) was slipping through
                   1937:        in case where a SET was writing in the variable being fixed.
                   1938: 
                   1939:        * recog.c (register_operand, nonmemory_operand, memory_operand):
                   1940:        Changes to handle new var reload_completed: 1 means that
                   1941:        (SUBREG (MEM)) now counts as a mem-ref, since alter_subreg
                   1942:        will make it one.
                   1943:        * toplev.c (rest_of_compilation): Set and clear reload_completed.
                   1944: 
                   1945:        * sparc.md (call patterns): If TARGET_SUN_ASM, and address in reg,
                   1946:        output a jmpl rather than a call.
                   1947:        * tm-sun4os3.h: Like tm-sparc.h but turn on TARGET_SUN_ASM.
                   1948: 
                   1949:        * reload.c (push_reloads): Reinstate handling of reg_equiv_constant.
                   1950: 
                   1951: Thu Nov 17 09:48:14 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1952: 
                   1953:        * reload1.c (constraint_accepts_reg_p): Name changed from
                   1954:        constraint_all_regs_p; new arg is reg we are concerned with,
                   1955:        and condition tested takes some advantage of that reg.
                   1956: 
                   1957:        * gcc.c (main): Rename var `error' to `error_count' for name conflict.
                   1958: 
                   1959:        * emit-rtl.c (emit_note): Output line #s even if no debug info wanted.
                   1960:        (emit_line_note): New fn, does what emit_note did.
                   1961:        (emit_line_note_force): New name for emit_note_force.
                   1962:        * stmt.c, c-parse.y: Call emit_line_note instead of emit_note.
                   1963: 
                   1964:        * c-parse.y (maybe_type_qual): Call emit_note instead of emit_line_note
                   1965:        Now we can find the line # of every `asm' from the RTL.
                   1966:        * toplev.c (error_for_asm): New fn, gets line # by searching for NOTE.
                   1967:        * reload.c (find_reloads): Use error_for_asm.
                   1968:        * reload1.c (choose_reload_targets): Likewise.
                   1969:        * final.c (output_operand_lossage): Likewise.
                   1970:        Variable this_is_asm_operands is now current insn if it's nonzero.
                   1971: 
                   1972:        * loop.c (move_movables): When a reg is moved, update regno_first_uid
                   1973:        and regno_last_uid; say life span includes entire loop.
                   1974:        * Decrement THRESHOLD per reg moved, not per insn moved.
                   1975: 
                   1976: Wed Nov 16 08:41:32 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1977: 
                   1978:        * gnulib.c (___builtin_saveregs): New fn, for sparc.
                   1979: 
                   1980:        * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): Don't recognize
                   1981:        SYMBOL_REFs, except for the constants pool.
                   1982:        But do recognize REG+REG and SMALLINT+REG.
                   1983:        * sparc.md: New patterns for fetching and storing memory
                   1984:        whose address is symbolic and not "legitimate".
                   1985: 
                   1986:        * sparc.md (movsi): Add `f' to op1 constraint.
                   1987:        New output clause for result in fp reg.
                   1988:        (Floating point fetch patterns): Output sethi insns.
                   1989:        (call_value, related patterns): value-register has `register_operand'.
                   1990: 
                   1991:        * output-sparc.c (hardreg): New function.
                   1992:        (COMPATIBLE): Clause added for n_regs == 2.
                   1993:        (single_insn_src_p): Return 0 for MEM whose address is absolute.
                   1994: 
                   1995:        * tm-genix.h (GO_IF_LEGITIMATE_ADDRESS subroutines):
                   1996:        Redefine, to exclude any possibility of SB-referencing addresses.
                   1997: 
                   1998:        * loop.c (strength_reduce): Can't eliminate a biv if used before
                   1999:        start of the loop.  Used before is same as used after, if contained
                   2000:        in another loop.
                   2001: 
                   2002:        * recog.c (asm_noperands, decode_asm_operands):
                   2003:        Handle case of no outputs, but some clobbers.
                   2004:        * stmt.c (expand_asm_operands): Generate right stuff for that case.
                   2005: 
                   2006:        * tm-sun3.h (CPP_SPEC): Don't define __HAVE_68881__ if using fpa.
                   2007: 
                   2008: Tue Nov 15 00:10:26 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2009: 
                   2010:        * loop.c (gen_iv_mult): Arg OP0 may not be a constant.
                   2011:        Pay attention to return value of expand_mult.
                   2012:        (eliminate_biv): Call changed.
                   2013: 
                   2014:        * output-m88k.c, output-sparc.c (output_move_double):
                   2015:        Fix typo `optype0' for `optype1'.
                   2016: 
                   2017:        * c-decl.c (duplicate_decls): Don't alter file, line of old decl.
                   2018: 
                   2019:        * c-parse.y (skip_white_space): Don't recognize comments; rely on cpp.
                   2020: 
                   2021:        * rtl.c (rtx_equal_p): Handle vectors.
                   2022: 
                   2023:        * loop.c (scan_loop): Change elts of n_times_set back to positive
                   2024:        for candidates that weren't moved, before doing strength reduction.
                   2025: 
                   2026:        * ns32k.md (movdi, movdf): Use `&' constraint for first operand.
                   2027: 
                   2028:        * reload1.c (reload): Initialize spill_indirect_ok here.
                   2029: 
                   2030:        * config-sun4.h: Recognize `-static' switch.
                   2031: 
                   2032:        * global-alloc.c (set_preference): Avoid using nonsense hard reg #s
                   2033:        that result from adding OFFSET.
                   2034: 
                   2035:        * sdbout.c (sdbout_end_function): Line # in .ef should be relative.
                   2036: 
                   2037:        * final.c (output_source_line): For SDB, don't output negative #s.
                   2038: 
                   2039:        * tm-encore.h (ASM_OUTPUT_LOCAL): Don't ignore SIZE arg.
                   2040: 
                   2041: Mon Nov 14 11:03:16 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2042: 
                   2043:        * reload.c: Don't declare refers_to_regno_p.
                   2044: 
                   2045:        * gcc.c (main): Warn if any input files are for the linker
                   2046:        but the linker is not being run.
                   2047: 
                   2048:        * jump.c (sets_cc0_p): Dumb bug fetching elts of a PARALLEL.
                   2049: 
                   2050:        * local-alloc.c: qty_birth, qty_death elements are now -1, not 0,
                   2051:        when the value is not known.
                   2052: 
                   2053:        * expmed.c (extract_bit_field): Bug computing xbitpos, xoffset
                   2054:        when changing units from bytes to words.
                   2055: 
                   2056:        * loop.c: Rename `times_used' field in `struct movable' to `savings'.
                   2057:        (scan_loop): When scanning the consecutive sets, for each libcall,
                   2058:        increment `savings'--leave `consec'.
                   2059:        When making movable for (SET (REG) 0) which is part of zero-extension,
                   2060:        set `savings' to 1 initially, since only 1 insn will be moved.
                   2061:        And don't let any other reg force that insn.
                   2062:        Reduce initial THRESHOLDs.
                   2063:        (move_movables): Don't add `consec' into `savings'
                   2064:        since the initial `savings' was proportional to `consec'.
                   2065:        Decrement THRESHOLD by 3 (not 2) for each move done.
                   2066: 
                   2067:        * reload1.c (choose_reload_targets): Strip subregs from OLD
                   2068:        before writing the output-reload move-insn.
                   2069: 
                   2070:        * reload1.c (reload): counted_for_groups and counted_for_nongroups
                   2071:        are now file-scope.  Update them both when spilling.
                   2072:        (new_spill_reg): No need for counted_for_nongroups as arg.
                   2073:        (choose_reload_targets): Don't use for a group
                   2074:        any spill regs for which counted_for_nongroups is set.
                   2075: 
                   2076:        * dbxout.c (dbxout_symbol): Indirect-symbol case checked erroneously
                   2077:        for PARM_DECL.
                   2078: 
                   2079: Sun Nov 13 08:13:49 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2080: 
                   2081:        * cse.c (fold_rtx): Don't alter MULT by -1 if arg mode != result mode.
                   2082: 
                   2083:        * loop.c (move_movables): If moving a CALL_INSN, make a new CALL_INSN.
                   2084:        * emit-rtl.c (emit_call_insn_before): New fn.
                   2085:        
                   2086:        * config-sun4.h (LINK_SPEC): Avoid shared libraries if -g.
                   2087: 
                   2088:        * expr.c (store_one_arg): Stabilize ARG->stack so it doesn't use SP
                   2089:        before computing the arg value.
                   2090: 
                   2091:        * combine.c (use_crosses_set_p): Moving a ref to stack ptr
                   2092:        is always forbidden if machine has push insns, since might cross one.
                   2093: 
                   2094:        * vax.md (movqi): Avoid out-of-range immed ops in mcomb.
                   2095: 
                   2096:        * expmed.c (extract_bit_field): Don't say `extzv' in the
                   2097:        clause for `extv'.
                   2098: 
                   2099:        * emit-rtl.c (copy_rtx_if_shared): Even if a MEM can be shared,
                   2100:        unshare its address from everything outside that MEM.
                   2101: 
                   2102:        * expr.c (expand_builtin): Fix omitted arg to `convert_to_mode'.
                   2103: 
                   2104:        * expr.c (store_expr): In case where will not return TARGET
                   2105:        and must do type conversion, don't fail to store into TARGET.
                   2106: 
                   2107:        * dbxout.c (FORCE_TEXT): New macro used before output `.stabs'
                   2108:        to go to the text section on targets that require it.
                   2109:        (DEBUG_SYMS_TEXT): Target macro which turns on that feature.
                   2110: 
                   2111:        * reload1.c (reload): Index in spill_regs was wrong
                   2112:        when checking counted_for_groups.
                   2113:        (choose_reload_targets): When calling find_equiv_reg looking for
                   2114:        a reload reg, reject all spill regs, even those not in use now.
                   2115: 
                   2116:        * tm-sun386.h, tm-sun386i.h, config-sun386i.h: New files.
                   2117: 
                   2118:        * cccp.c (main): Don't die if no output file arg given.
                   2119: 
                   2120:        * fixincludes: Tell `find' to find only ordinary files.
                   2121: 
1.1.1.12  root     2122:        * config.gcc: If symlink fails, make a hard link.
                   2123: 
1.1.1.11  root     2124: Sat Nov 12 20:43:20 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2125: 
                   2126:        * Makefile (gnulib): Use cp to make the temporary .c files;
                   2127:        less likely to fail than ln.
                   2128: 
                   2129: Sat Nov  5 12:46:39 1988  Randall Smith  (randy at sugar-bombs.ai.mit.edu)
                   2130: 
                   2131:        * tm-m68k.h (HARD_REGNO_MODE_OK): Disallowed d7:a0 as an allowable
                   2132:        pair of registers to hold a double value.  This is correct for the
                   2133:        fpa but incorrect for the 68881.  It was, however, simpler than
                   2134:        defining a new regclass.
                   2135: 
                   2136: Tue Oct 25 12:03:49 1988  Randall Smith  (randy at gluteus.ai.mit.edu)
                   2137: 
                   2138:        * m68k.md: Added some thoughts (comments) on best method to allow
                   2139:        68881 code with fpa code.
                   2140: 
1.1.1.10  root     2141: Thu Oct 13 14:19:17 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2142: 
1.1.1.11  root     2143:        * Version 1.30 released.
                   2144: 
1.1.1.10  root     2145:        * stupid.c (stupid_life_analysis): Init last_call_suid with
                   2146:        largest possible value, not 0.
                   2147: 
                   2148: Wed Oct 12 04:40:18 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2149: 
                   2150:        * output-i386.c (output_asm_insn_double_reg_op): Compensate for
                   2151:        assembler bug that interchanges fsub and fsubr.
                   2152: 
                   2153:        * reload1.c (order_regs_for_reload): Undo 29 Sept change.
                   2154:        It breaks the 386.
                   2155: 
                   2156:        * varasm.c (decode_rtx_const): Don't example value->addr
                   2157:        if what was stored in was value->d.
                   2158: 
                   2159:        * toplev.c (set_float_handler): New fn, specify where to jump
                   2160:        on floating exception signal.
                   2161:        * fold-const.c (combine): Use that to handle overflow in arithmetic.
                   2162: 
                   2163:        * c-decl.c (grokdeclarator): Don't clear CONSTP, VOLATILEP
                   2164:        when making an array type.
                   2165: 
                   2166:        * dbxout.c (dbxout_symbol): Ignore VAR_DECLs in memory whose
                   2167:        addresses we can't represent.
                   2168: 
                   2169:        * fold-const.c (fold): don't convert >= to > if both args are constant.
                   2170:        When converting >= to >, don't fail to change CODE.
                   2171: 
                   2172: Tue Oct 11 04:13:40 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2173: 
                   2174:        * vax.md (movhi): Error in truncating mcomw, addh3 args to 16 bits.
                   2175: 
                   2176:        * final.c: Better error checking for %-specs in templates.
                   2177:        (output_operand_lossage): new fn to report errors.
                   2178:        (insn_noperands): new var: # operands in current fn.
                   2179:        (this_insn_asm_operands): new var: 1 for `asm', 0 otherwise.
                   2180:        (output_asm_insn): Check for operand # out of range.
                   2181:        (output_asm_label, output_operand): Call new fn to report errors.
                   2182: 
                   2183:        * reload.c (push_reloads): An input reload for (REG N) can match one
                   2184:        for (POST_INC (REG N)) or (PRE_INC (REG N)), since the value
                   2185:        reloaded is the same in any case.
                   2186: 
                   2187: Mon Oct 10 06:19:05 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2188: 
                   2189:        * recog.c (next_insns_test_no_inequality): Like next_insn_tests...
                   2190:        but check all insns that follow this one and can use it's cc's.
                   2191:        * output-m68k.c (output_btst): Use that.
                   2192: 
                   2193:        * vax.md (movsf, movdf): Undo last change; movq/movl set the cc wrong.
                   2194: 
                   2195:        * expr.c (expand_call): Set current_function_calls_setjmp if appro.
                   2196:        * stmt.c (setjmp_protect): New fn: move all vars into stack
                   2197:        unless declared `register'.
                   2198:        * c-decl.c (finish_function): Call it if -traditional and setjmp used.
                   2199: 
                   2200:        * cccp.c (main): Open output after the input.
                   2201:        Handle `-o -'.
                   2202: 
                   2203: Sun Oct  9 00:28:06 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2204: 
                   2205:        * tm-sun3.h (CPP_SPEC): Define __HAVE_FPA__ if appropriate.
                   2206: 
                   2207:        * c-decl.c (pushdecl): After duplicate_decls, maybe warn about
                   2208:        "declared extern and later static".
                   2209: 
                   2210:        * expmed.c (store_bit_field): In insv case, avoid turning
                   2211:        VALUE into a subreg of a subreg.
                   2212: 
                   2213:        * loop.c (move_movables): When moving a libcall,
                   2214:        un-cse the function address; put it into the call insn.
                   2215: 
                   2216: Sat Oct  8 01:48:03 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2217: 
                   2218:        * cse.c (equiv_constant): Subroutine to find the constant equivalent
                   2219:        of a reg.  Now handles SUBREGs too.
                   2220:        (fold_rtx, fold_cc0): Use that function.
                   2221:        Don't handle SUBREGs like arithmetic.
                   2222: 
                   2223:        * reload1.c (choose_reload_targets): Don't call reg_overlap_mentioned_p
                   2224:        if arg is 0.
                   2225: 
                   2226: Fri Oct  7 01:00:19 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2227: 
                   2228:        * assert.h: Typo declaring __eprintf.
                   2229: 
                   2230:        * config.gcc: New file for making the links.
                   2231:        Fixed bugs for sun-[23]-os4.  Added sun-[234] for sunos 3.
                   2232:        Added sequent-i386.
                   2233: 
                   2234:        * emit-rtl.c (gen_rtx): Return const0_rtx for 0 in DImode.
                   2235:        * varasm.c (immed_double_const): Don't be confused by this.
                   2236: 
                   2237:        * expmed.c (negate_rtx): New 1st arg MODE.
                   2238:        * expr.c (push_block): Calls changed.
                   2239:        * m68k.md, ns32k.md, vax.md: Calls changed.
                   2240: 
                   2241:        * c-decl.c (duplicate_decls): Don't discard DECL_BLOCK_SYMTAB_ADDRESS.
                   2242: 
                   2243:        * tree.c (staticp): INDIRECT_REF with constant address is static.
                   2244:        COMPONENT_REF may not be, if component offset isn't constant.
                   2245: 
                   2246:        * c-typeck.c (default_conversion): Converting array to ptr, if array
                   2247:        isn't a VAR_DECL, go through build_unary_op so that COMPONENT_REFs
                   2248:        will be simplified away.
                   2249: 
                   2250:        * ns32k.md (tbitd patterns): op 0 constraint: reject constants.
                   2251:        * ns32k.md (extzv for SImode and HImode):
                   2252:        Use adj_offsetable_operand; plus_constant was the wrong thing.
                   2253: 
1.1.1.9   root     2254: Thu Oct  6 00:10:41 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2255: 
                   2256:        * Version 1.29 released.
                   2257: 
                   2258:        * loop.c (scan_loop): Don't think a `return' insn enters the loop.
                   2259: 
                   2260:        * ns32k.md (ashrsi3, etc): New define_expands for right shift.
                   2261: 
                   2262:        * reload1.c (choose_reload_targets): Change in the `force_group'
                   2263:        logic to avoid crashes.
                   2264: 
                   2265: Wed Oct  5 04:09:19 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   2266: 
                   2267:        * expr.c (expand_expr, MINUS_EXPR): When negating integer op1,
                   2268:        truncate it to its mode.
                   2269: 
                   2270:        * expmed.c (extract_bit_field): SUBREG error check was wrong;
                   2271:        SImode SUBREGs are possible and ok in extzv, extv.
                   2272: 
1.1.1.13  root     2273:        * tm-ns32k.h (REGISTER_NAMES): Had two excess elements; deleted.
1.1.1.9   root     2274: 
                   2275: Mon Oct  3 01:15:51 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   2276: 
                   2277:        * toplev.c (main, compile_file): If no files spec'd, use stdin, stdout.
                   2278: 
                   2279:        * flow.c (propagate_block): When checking for stack-adjust insns,
                   2280:        exclude non-SET patterns.
                   2281: 
                   2282:        * jump.c (jump_optimize): When changing jump=>return to return,
                   2283:        must rerecognize the insn.
                   2284: 
                   2285:        * toplev.c (compile_file): Allow `-' for main input or output filename.
                   2286: 
                   2287: Sun Oct  2 10:30:09 1988  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   2288: 
                   2289:        * final.c (final): NOTICE_UPDATE_CC has extra arg, INSN.
                   2290:        * tm-*.h: Change definitions.
                   2291: 
                   2292:        * stmt.c (optimize_bit_field): Use gen_lowpart to make subregs.
                   2293: 
                   2294:        * stmt.c (assign_parms): Don't obey regdecls in inline function.
                   2295:        Don't lose existing REG_NOTES when adding one.
                   2296: 
                   2297:        * stmt.c (expand_function_start): Make return rtx before
                   2298:        marking parms live.
                   2299:        (expand_function_end): Use use_variable to emit USEs for SAVE_EXPRs.
                   2300: 
                   2301:        * stmt.c (expand_return): Handle TRUTH_AND_EXPR like ANDIF; OR also.
                   2302: 
                   2303:        * stmt.c (expand_end_stmt_expr): Always set TREE_VOLATILE,
                   2304:        sometimes TREE_THIS_VOLATILE.
                   2305: 
                   2306:        * jump.c (delete_insn): When finding PREV, skip deleted insns.
                   2307: 
                   2308:        * varasm.c (output_constant): WORDS_BIG_ENDIAN test was backwards.
                   2309: 
                   2310:        * emit-rtl.c (gen_lowpart): Allow MODE > 1 word if X is same size.
                   2311: 
                   2312:        * final.c (final): Don't delete no-op moves (jump did it if appro.).
                   2313: 
                   2314:        * final.c: Support prescan pass.
                   2315:        (final_start_function): init_recog and CC_STATUS_INIT mvd to `final'.
                   2316:        (final): New arg PRESCAN.  Do no output if prescanning.
                   2317:        Don't alter conditionals if PRESCAN < 0 (prescan already done).
                   2318:        If jump becomes no-op, change it to a NOTE.
                   2319:        Remember to free the temp space for ASM_OPERANDS.
                   2320: 
                   2321:        * final.c (final): Altering store-flag must check STORE_FLAG_VALUE.
                   2322:        Don't try to do it if that isn't defined.
                   2323:        Don't try it if condition doesn't test CC0.
                   2324:        (alter_cond): No need to check COND != 0.
                   2325:        Handle CC_Z_IN_NOT_N and CC_Z_IN_N.
                   2326:        (m68k.md): Delete code that handled CC_Z_IN_NOT_N.
                   2327: 
                   2328:        * conditions.h: New flag CC_Z_IN_N.
                   2329:        * tm-*.h: Renumber all CC_... flags to make room.
                   2330: 
                   2331:        * combine.c (use_crosses_set_p): Loop start was 1 off.
                   2332: 
                   2333:        * local-alloc.c (reg_is_set): When a reg is CLOBBERed and dies in
                   2334:        one insn, make it live immediately before and after that insn.
                   2335: 
                   2336:        * global-alloc.c: Hard reg preferences for global pseudos.
                   2337:        Var allocno_preferred_reg deleted; new vars hard_reg_preferences
                   2338:        and regs_someone_prefers.
                   2339:        (global_alloc): Init those vars.  Pass hard_reg_preferences elt
                   2340:        to find_reg.
                   2341:        (set_preference): New function makes entries in those vars.
                   2342:        (global_conflicts): new arg to mark_reg_store.  Call set_preference.
                   2343:        (find_reg): Last arg now a preferred hard_reg_set.
                   2344:        Scan that set first of all.
                   2345:        (mark_reg_store): New arg is offset for renumbered regno.
                   2346:        But the code to use it is turned off.
                   2347: 
                   2348:        * global_alloc (check_frame_pointer_required): Handle reg_equiv_address
                   2349:        like reg_equiv_mem.  Don't try to allocate pseudos with equiv mems
                   2350:        that don't use the frame pointer.
                   2351:        * reload1.c (reload): Call changed.
                   2352: 
                   2353:        * jump.c (sets_cc0_p): Tests whether rtx sets cc0, and whether
                   2354:        it does nothing but set cc0.
                   2355:        (find_cross_jump, delete_jump): Use that fn for these tests.
                   2356:        * loop.c (loop_skip_over): Likewise.
                   2357:        * reload.c (push_reload): Likewise.
                   2358: 
                   2359:        * genoutput.c: Output `const' before the data arrays.
                   2360:        Define it as nothing if not __STDC__.
                   2361: 
                   2362: Sat Oct  1 02:19:29 1988  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   2363: 
                   2364:        * expr.c (store_one_arg): 3rd arg to emit_block_move is in bytes.
                   2365: 
                   2366:        * cse.c (fold_rtx): Handling ZERO_EXTEND or SIGN_EXTEND of constant,
                   2367:        if the arg width is too wide to handle, return safely.
                   2368: 
                   2369:        * combine.c (FAKE_EXTEND_SAFE_P): Don't allow extend to > 1 word.
                   2370: 
                   2371:        * rtl.c (refers_to_regno_p): Moved from reload.c.  Not static.
                   2372:        (reg_overlap_mentioned_p): New function, calls the above.
                   2373:        * output-*.c: Use that instead of reg_mentioned_p.
                   2374:        * tm-*.h (NOTICE_UPDATE_CC): Likewise.
                   2375:        * reload.c (push_reload, combine_reloads): Likewise.
                   2376:        * reload1.c (choose_reload_targets): Use it to check earlyclobbers.
                   2377: 
                   2378:        * reload1.c (choose_reload_targets): Elimination of previous
                   2379:        output-reload feeding our input now limited to pseudo-regs.
                   2380: 
                   2381:        * flow.c (life_analysis): Delete any insn copying reg to itself.
                   2382:        (propagate_block): Move update of OLD after special life and death
                   2383:        for CALL_INSNs.
                   2384: 
                   2385:        * vax.md (ashrsi3, ashrdi3, rotrsi3): define_expands to negate
                   2386:        the shift count.
                   2387:        * expmed.c (expand_shift): Eliminate negate-the-shift-count feature.
                   2388: 
                   2389:        * vax.md (and*i3): define_expands which use complement and bit-clear.
                   2390:        * expmed.c (expand_bit_and): Eliminate feature to do that.
                   2391:        This function could be eliminated.
                   2392: 
                   2393:        * expmed.c (store_bit_field): Handle nested subregs.
                   2394:        Allow gen_insv to fail; if it does, delete what we did and then
                   2395:        use store_fixed_bit_field.
                   2396:        (store_fixed_bit_field): Use gen_lowpart to make SUBREGs.
                   2397:        Do that for SUBREGs just as for REGs.
                   2398:        Error check OFFSET must be 0 for REGs.
                   2399:        (store_split_bit_field): Error check OP0 is a SUBREG when expected.
                   2400:        (extract_bit_field): Allow gen_ext{,z}v to fail.
                   2401:        Use gen_lowpart to make subregs.
                   2402:        (expand_shift): If a try fails, delete any insns it made.
                   2403: 
                   2404:        * expmed.c (expand_mult): Use expand_unop to negate.
                   2405:        When adding 2 powers of 2, do serial shifts, not parallel.
                   2406:        Handle absval==1 like other powers of 2.
                   2407: 
                   2408:        * explow.c (force_reg): Don't lose any existing reg notes.
                   2409: 
                   2410:        * stmt.c (expand_start_stmt_expr): Eliminate return value.
                   2411:        (expand_end_stmt_expr): No need for argument.
                   2412:        * c-parse.y (primary): Change calls.
                   2413: 
                   2414: Fri Sep 30 01:50:22 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   2415: 
                   2416:        * integrate.c (copy_rtx_and_substitute, copy_address):
                   2417:        'u' case erroneously returned the translated single element.
                   2418:        (copy_address): Special cases for frame-ptr and sums containing it.
                   2419:        MEM and LABEL_REF cases passed wrong arg to copy_rtx_and_substitute.
                   2420:        (copy_rtx_and_substitute): adjust mode of inline_target for context.
                   2421: 
                   2422:        * jump.c (true_regnum): For SUBREG of pseudo, use pseudo's # unchanged.
                   2423: 
                   2424: Thu Sep 29 02:50:46 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   2425: 
                   2426:        * i386.md (movsi, mov{q,h}i): Use find_reg_note to look for REG_WAS_0.
                   2427:        * vax.md (movsi, movhi): Likewise.
                   2428: 
                   2429:        * varasm.c (decode_rtx_const): Was setting un.addr.base wrong
                   2430:        for a CONST.  Should be symbol name, not the SYMBOL_REF.
                   2431: 
                   2432:        * rtl.c (rtx_equal_p): When comparing registers, check
                   2433:        REG_FUNCTION_VALUE_P.  If there are `u'-slots in the rtx, ignore them.
                   2434: 
                   2435:        * rtl.c (reg_mentioned_p): Some rtx types were mistakenly treated
                   2436:        as uniquified (various constants).
                   2437: 
                   2438:        * rtl.c (read_rtx): Element type 'S' is string that may be omitted.
                   2439:        * rtl.def (define_insn, define_peephole): Add a last element, type 'S'.
                   2440:        * genoutput.c: Collect these optional last elements and output as
                   2441:        array `insn_machine_info' of structs `INSN_MACHINE_INFO'.
                   2442:        The last must be defined as a macro.
                   2443:        * recog.h (insn_machine_info): Declare it if appropriate.
                   2444: 
                   2445:        * regclass.c (record_address_regs): In PLUS case, look inside SUBREGs.
                   2446: 
                   2447:        * reload1.c (reload): Use reg_equiv_address for REG_EQUIVs with
                   2448:        invalid memory addresses.
                   2449:        When changing pseudos to mem refs at end, do FIX_FRAME_POINTER_ADDRESS
                   2450:        on their addresses.
                   2451:        (alter_reg): Check that with reg_equiv_mem.
                   2452:        (spill_hard_reg): If fp reg, spill regardless of basic_block_needs.
                   2453: 
                   2454:        * reload1.c (order_regs_for_reload): Don't put invalid regs into
                   2455:        potential_reload_regs at all.  (They used to go at the end.)
                   2456: 
                   2457:        * reload.c (find_reloads): Store all earlyclobber operand in
                   2458:        reload_earlyclobbers (# in n_earlyclobbers):
                   2459:        * reload.1 (choose_reload_targets): Don't use value of find_equiv_reg
                   2460:        if it matches an earlyclobber operand.
                   2461: 
                   2462:        * reload.c (find_reloads_address for REG):
                   2463:        No need for explicitly excluding hard regs in these tests.
                   2464:        (find_reloads, find_reloads_address_1 for REG): likewise.
                   2465: 
                   2466:        * reload.c (push_reload): Code testing reg_equiv_constant should
                   2467:        be obsolete; add error check to verify this.
                   2468: 
                   2469:        * reload.c (hard_reg_set_here_p): Handle CLOBBERs, SUBREGs, overlap.
                   2470:        (refers_to_regno_p): Handle CLOBBERS.  Handle overlap.
                   2471:        New arg ENDREGNO specs end of range to check for;
                   2472:        all callers changed (all in this file).
                   2473: 
                   2474:        * reload.c (find_reloads): SUBREG like REG in alternate recovery
                   2475:        for earlyclobber conflict.
                   2476:        The operands to unswap are those that are supposed to commute.
                   2477:        When operands match, copy the regclass of earlier one for later one.
                   2478: 
                   2479:        * stmt.c (optimize_bit_field): Don't use gen_extend_insn;
                   2480:        use convert_move, then reorder the insns.
                   2481:        * optabs.c (gen_extend_insn): Deleted.
                   2482: 
                   2483:        * optabs.c (emit_cmp_insn): Don't emit queue before recursion.
                   2484:        Don't convert size to SImode for cmpstrqi.
                   2485: 
                   2486:        * optabs.c (expand_binop): Keep any old REG_NOTES when adding them.
                   2487:        Always delete_insns_since if returning failure.
                   2488:        (expand_unop, emit_unop_insn): Keep any old REG_NOTES when adding them.
                   2489:        * spur.md (movhi): likewise.
                   2490: 
                   2491:        * RTL_EXPR_SEQUENCE is now a chain of insns, not a SEQUENCE.
                   2492:        * emit-rtl.c (emit_insns): New fn, emit a chain of insns.
                   2493:        * expr.c (expand_expr): Use that.
                   2494:        Also put const0_rtx in the RTL_EXPR_SEQUENCE (mark RTL_EXPR as output).
                   2495:        * stmt.c (expand_end_stmt_expr): Use get_insns to get the chain.
                   2496: 
                   2497:        * stmt.c (expand_end_stmt_expr): Put the RTL_EXPR on rtl_expr_chain.
                   2498:        (fixup_var_refs): Scan all waiting RTL_EXPRs not yet output.
                   2499:        Also scan all stacked sequences on sequence_stack.
                   2500: 
                   2501:        * genemit.c (gen_expand): Generate calls to {start,end}_sequence.
                   2502:        Use `emit' to handle a PARALLEL.
                   2503:        (FAIL, DONE): Change to fit gen_expand changes.
                   2504: 
                   2505:        * emit-rtl.c (change_address): abort if arg isn't a MEM.
                   2506: 
                   2507:        * emit-rtl.c: Sequences work now by saving and restoring first_insn
                   2508:        and last_insn.  So these variables are used even when in a sequence.
                   2509:        emit_to_sequence has been deleted.
                   2510:        (start_sequence, end_sequence): Save and restore first_insn, last_insn.
                   2511:        (get_last_insn, add_insn): Sequences no longer need special treatment.
                   2512:        (delete_insns_since, reorder_insns): likewise.
                   2513:        (push_to_sequence): Set up to emit to a given existing insn chain.
                   2514: 
                   2515:        * emit-rtl.c (copy_rtx_if_shared): Don't copy INSNs.
                   2516:        Insert missing return stmt in MEM case (for MEMs ok to share).
                   2517:        (unshare_all_rtx): Now can copy the REG_NOTES simply.
                   2518:        Copy the LOG_LINKS too.
                   2519: 
                   2520:        * emit-rtl.c (make_safe_from): Treat SUBREG as X like a REG.
                   2521:        (delete_insns_since): Don't lose if FROM is the first insn.
                   2522:        (emit): Declare void, since no useful value.
                   2523:        Call simplejump_p properly.
                   2524:        (restore_reg_data_1): When a reg is an address, do mark_reg_pointer.
                   2525: 
                   2526:        * dbxout.c (dbxout_types): Call dbxout_symbol to do the work.
                   2527:        (dbxout_type_def): Deleted.
                   2528:        (dbxout_symbol): Set TREE_ASM_WRITTEN when a TYPE_DECL is output.
                   2529:        Don't output the same one twice. 
                   2530: 
                   2531:        * cse.c (fold_cc0): LABEL_REF is not zero.
                   2532: 
                   2533:        * cse.c (cse_insn): Don't insert src, dest if they are the same place.
                   2534: 
                   2535:        * cse.c (lookup_as_function): Return entire rtx, not just operand.
                   2536:        (cse_insn): Caller changed.  Also, copy the result before inserting it.
                   2537: 
                   2538:        * cse.c (fold_rtx): Put constant arg last if commutative op.
                   2539:        Handle idempotents and identities for mult, div, booleans, shifts.
                   2540: 
                   2541:        * cse.c (canon_hash): Parens were missing around shifts in "rotates".
                   2542: 
                   2543:        * c-convert.c (convert_to_integer): Truncate TRUTH_ANDIF_EXPR
                   2544:        like TRUTH_AND_EXPR; OR also.
                   2545: 
                   2546:        * c-typeck.c (build_binary_op_nodefault): Do truthvalue_conversion
                   2547:        for TRUTH_ANDIF, etc.
                   2548:        (build_unary_op): More simplifications for TRUTH_NOT_EXPR;
                   2549:        uses new fn `invert_truthvalue'.
                   2550: 
                   2551:        * recog.c (reg_fits_class_p): New name for reg_renumbered_fits_class_p
                   2552:        since it no longer needs to renumber.  Also it now really assumes
                   2553:        arg is a REG.  Callers changed.
                   2554:        * reload.c: Callers changed.
                   2555: 
                   2556:        * recog.c (general_operand): (SUBREG (MEM...)) need not alter mode.
                   2557:        (register_operand, nonmemory_operand): (SUBREG (MEM...)) is allowed.
                   2558:        (memory_operand): (SUBREG (MEM...)) is *not* allowed.
                   2559:        (mode_independent_operand): Operand names were backwards!
                   2560:        (No change in effect of this function.)
                   2561: 
                   2562:        * print-tree.c (dump): Some expr nodes contain rtx's.  Print as rtx's.
                   2563: 
                   2564: Wed Sep 28 18:51:12 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2565: 
                   2566:        * reload1.c (choose_reload_targets): If a reload wanted a group,
                   2567:        don't allow a single register for it.
                   2568: 
                   2569: Tue Sep 27 11:43:56 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2570: 
                   2571:        * final.c (output_addr_const): Handle DImode CONST_DOUBLEs.
                   2572:        * tm-*.h (PRINT_OPERAND): Treat DImode CONST_DOUBLE like a CONST_INT.
                   2573: 
                   2574:        * vax.md (rotldi3): Insn deleted; it doesn't really exist.
                   2575: 
                   2576:        * toplev.c (report_error_function): Also mention the file name,
                   2577:        for parallel makes.  New arg FILE; all callers changed.
                   2578: 
                   2579: Mon Sep 26 15:44:18 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2580: 
                   2581:        * expmed.c (expand_shift): When using extzv, convert OP1 to SImode.
                   2582:        * c-typeck.c (build_binary_op_nodefault): Convert shift-count
                   2583:        to int regardless of result type.
                   2584: 
                   2585:        * output-spur.c (output_move_double): Fix typo, optype0=>optype1.
                   2586: 
                   2587:        * expr.c (expand_call): Avoid null deref on result of FUNCTION_ARG.
                   2588: 
                   2589:        * tm-i386.h (FUNCTION_PROFILER): Use correct assembler syntax.
                   2590: 
                   2591: Sun Sep 25 12:13:56 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2592: 
                   2593:        * fixincludes: Handle some files in netdnet, netdna, vaxif, vaxuba.
                   2594: 
                   2595:        * reload.c (find_reloads): Make no optional reloads if not -O.
                   2596: 
                   2597:        * loop.c (strength_reduce): Can't eliminate a biv if it's used
                   2598:        to compute a DEST_ADDR giv.  Only DEST_REG givs are safe.
                   2599: 
                   2600:        * loop.c (general_induction_var): Shift & divide ops are linear
                   2601:        only in 1st operand; don't look for biv or giv in 2nd operand.
                   2602: 
                   2603:        * vax.md (fix_truncdfqi2): Use `%#'.
                   2604: 
                   2605: Sat Sep 24 00:25:48 1988  Richard Stallman  (rms at gluteus.ai.mit.edu)
                   2606: 
                   2607:        * loop.c (n_times_set, n_times_used): Now file-scope;
                   2608:        no longer passed as args to several functions.
                   2609: 
                   2610:        * loop.c (basic_induction_var): Accept reg as source value
                   2611:        only if it's invariant.
                   2612:        (strength_reduce): Benefit calculation and threshold changed.
                   2613:        Check reducibility of givs before trying to reduce them.
                   2614:        Check eliminability of biv before considering the givs;
                   2615:        let this affect the threshold.
                   2616:        (record_giv): New subroutine adds a giv to the chain.
                   2617: 
                   2618:        * ns32k.md (incrementing sp): Use cmpd insns to increment by 4 or 8.
                   2619: 
                   2620:        * integrate.c (expand_inline_function): Rename return_label
                   2621:        to local_return_label; avoid shadowing.
                   2622: 
                   2623: Fri Sep 23 13:57:52 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2624: 
                   2625:        * loop.c (loop_skip_over): Put the new label after the note that ends
                   2626:        the loop.
                   2627: 
                   2628:        * loop.c: New function strength_reduce and subroutines.
                   2629:        * toplev.c: New var flag_strength_reduce, set from -fstrength-reduce.
                   2630: 
                   2631:        * vax.md (sob insns): They were broken, with plus in one place
                   2632:        and minus in another.  Use plus consistently.
                   2633: 
                   2634:        * rtl.h (REG_LIBCALL, REG_NONNEG): Two new kinds of reg-note.
                   2635:        * optabs.c (expand_binop, expand_unop): Make REG_LIBCALL notes.
                   2636:        * loop.c (scan_loop, move_movables): Move entire library calls.
                   2637:        Use m->set_src to get the expression, in case it's from a REG_EQUAL.
                   2638:        (consec_sets_invariant_p): Likewise.
                   2639: 
                   2640:        * loop.c (scan_loop): Start scan from loop_top, if entry is rearranged.
                   2641:        Watch out for pseudo regs created by strength_reduce;
                   2642:        they can't index regno_last_uid.
                   2643:        (replace_regs): # regs mapped is now an arg.
                   2644: 
                   2645:        * loop.c (count_loop_regs_set): Don't increment n_times_set past 127.
                   2646:        (consec_sets_invariant_p): Reject if N_SETS arg is 127.
                   2647: 
                   2648:        * toplev.c (rest_of_compilation): NREGS arg of loop_optimize deleted.
                   2649: 
                   2650:        * c-decl.c (store_parm_decls): Anything but an IDENTIFIER_NODE
                   2651:        in SPECPARMS indicates a parmlist, not an identifier list.
                   2652:        (get_parm_info): Use only PARM_DECLs when making the list of arg types.
                   2653: 
                   2654:        * combine.c (try_distrib): Boolean ops can't distribute through PLUS.
                   2655:        MULT can distribute through PLUS and only PLUS.
                   2656: 
                   2657: Thu Sep 22 15:57:41 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2658: 
                   2659:        * jump.c (jump_optimize): uncond jump to a return becomes a return.
                   2660: 
                   2661:        * integrate.c (copy_parm_decls, copy_decl_tree): Set TREE_USED.
                   2662:        Avoid inevitable "unused" warning for these decls.
                   2663: 
                   2664:        * c-typeck.c (comptypes): When comparing array types,
                   2665:        ignore qualifiers of element type.
                   2666: 
                   2667:        * tm-*.h (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Define new macros.
                   2668:        * final.c (final_start_function): Use them to protect around
                   2669:        the call to the profiling function.
                   2670:        * stmt.c (expand_function_start): Set current_function_needs_context
                   2671:        and current_function_returns_struct.
                   2672: 
                   2673:        * stmt.c (expand_null_return_1): If clear_pending_stack_adjust
                   2674:        doesn't clear it, do the adjust now.
                   2675:        * expr.c (clear_pending_stack_adjust): No-op if -finline-functions.
                   2676: 
                   2677:        * cccp.c (macarg1, skip_if_group): Backslash makes next char ordinary.
                   2678: 
                   2679:        * reload.c (find_reloads): Delete code to look for an equiv reg
                   2680:        for a reg being input-reloaded.  This isn't safe.
                   2681:        * reload1.c (choose_reload_targets): Do it here.
                   2682: 
                   2683: Wed Sep 21 00:36:22 1988  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   2684: 
                   2685:        * tm-sun3.h (CPP_SPEC): Define it based on TARGET_DEFAULT.
                   2686:        (STARTFILE_SPEC): Likewise.
                   2687: 
                   2688:        * reload1.c (choose_reload_targets): When redirecting prev insn
                   2689:        into this insn's reload-reg, check this doesn't break the prev insn
                   2690:        by giving it a reg it can't accept.  Use new fn constraint_all_regs_p.
                   2691: 
                   2692:        * tm-sparc.h (ASM_OUTPUT_LOCAL): Use .reserve, not .common.
                   2693: 
                   2694:        * tree.h (TREE_USED): New attribute macro.
                   2695:        * c-parse.y (primary): Set TREE_USED in ..._DECL nodes.
                   2696:        * toplev.c, flags.h: Define and set warn_unused.
                   2697:        * stmt.c (expand_end_bindings): Warn if any var is unused.
                   2698:        * print-tree.c (prtypeinfo): Print this attribute.
                   2699: 
                   2700: Tue Sep 20 15:29:01 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2701: 
                   2702:        * assert.h: `assert' must expand to an expression.
                   2703:        Error message should show arg before expansion, not after.
                   2704: 
                   2705:        * c-decl.c (implicitly_declare): Make decl perm if !warn_implicit
                   2706:        since start_function needs to look inside it in that case.
                   2707: 
                   2708:        * toplev.c (announce_function): If we don't print, don't record we did.
                   2709: 
                   2710: Mon Sep 19 15:21:11 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2711: 
                   2712:        * c-parse.y (structsp): If pedantic, warn if comma at end of enumlist.
                   2713: 
                   2714:        * reload.c (find_reloads): Check insn_code_number >= 0 when
                   2715:        looking in insn_operand_strict_low.
                   2716: 
                   2717:        * tm-sun[23].h (CPP_SPEC): Rename __HAVE_FPU__ to __HAVE_68881__
                   2718:        and put a space after that option.
                   2719: 
                   2720: Sun Sep 18 01:12:56 1988  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   2721: 
                   2722:        * reload.c (find_reloads): Make optional reloads for explicit MEMs.
                   2723: 
                   2724:        * tm-m68k.h (MODES_TIEABLE_P): If no 68881, can tie fixed to floating.
                   2725:        * m68k.md (movdi): Allow F's (can be DImode now).
                   2726:        Don't allow f-regs (experiment).  Don't preference x-regs.
                   2727:        (DImode push): Allow y-regs.
                   2728:        (DFmode push): Allow y-regs, not x-regs.
                   2729: 
                   2730:        * reload1.c (modes_equiv_for_class_p): New function.
                   2731:        (reload): Compare multiple modes for reg group with that function.
                   2732:        Allows differing modes in some cases when not tieable.
                   2733: 
                   2734:        * c-parse.y (check_newline): Let ASM_OUTPUT_IDENT override .ident.
                   2735:        * tm-3b1.h (ASM_OUTPUT_IDENT):  Define this as no-op.
                   2736: 
                   2737:        * emit-rtl.c (reorder_insns): Update sequence_{first,last}_insn if nec.
                   2738:        (get_last_insn): If in a sequence, return last insn of sequence.
                   2739:        (delete_insns_since): If in a sequence, set sequence_last_insn.
                   2740: 
                   2741:        * spur.md (CONST_DOUBLE load insn): Use & for most dests.
                   2742:        (cond branches): pass additional args to output_compare.
                   2743:        (movdf, movdi): Use & loading reg from mem.
                   2744:        (trunc*): Enable these.
                   2745:        (add): New pattern for adding large immediate operand.
                   2746:        (shifts): A define_expand for each kind of shift,
                   2747:        plus a recognizer which outputs repeated insns if necessary.
                   2748:        (call*): Use r9 as temp, not r2.
                   2749: 
                   2750:        * output-spur.c (output_compare): New args NEG_{EXCHANGE_,}OPCODE.
                   2751:        (singlemove_string): Handle reg as operand 1.
                   2752:        (output_add_large_offset): Fake add insn with large immediate arg.
                   2753:        (big_immediate_operand): Match such an arg.
                   2754: 
                   2755:        * tm-spur.h (FUNCTION_PROLOGUE): Align the stack pointer.
                   2756:        Handle bigger frames.
                   2757:        (TARGET_LONG_JUMP, TARGET_EXPAND_SHIFT): New target flags.
                   2758: 
                   2759:        * va-spur.h: Track position in regs and stack separately.
                   2760: 
                   2761:        * c-decl.c (duplicate_decls): Warn if prototype follows
                   2762:        non-prototype definition.
                   2763: 
                   2764: Sat Sep 17 14:30:23 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2765: 
                   2766:        * expr.c (expand_builtin): Avoid crash if arg isn't integer type.
                   2767: 
                   2768:        * c-decl.c (duplicate_decls): Just warn if redeclaring a builtin,
                   2769:        and leave it built in unless it is redefined.
                   2770: 
                   2771:        * vax.md (ashlsi3): Use addl3, moval or movad when useful.
                   2772:        (addsi3): Avoid pushab, movab for constants < 64.
                   2773:        Do use movab when > 64 when operands match.
                   2774:        (mov*i): Use mcom* rather than mneg*.
                   2775:        Use add*3 with two quick immediate args when useful.
                   2776:        (movhi): Don't use movzbw or cvtbw; said to be slow.
                   2777: 
                   2778:        * rtl.h: New macros MEM_VOLATILE_P, MEM_IN_STRUCT_P,
                   2779:        INSN_DELETED_P, REG_USER_VAR_P, RTX_UNCHANGING_P, RTX_INTEGRATED_P,
                   2780:        CONSTANT_POOL_ADDRESS_P.
                   2781:        Most places changed to use them.
                   2782: 
                   2783: Fri Sep 16 11:50:15 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2784: 
                   2785:        * jump.c (jump_optimize): Was testing volatil on non-MEMs erroneously
                   2786:        when looking for no-op move insns.
                   2787: 
                   2788:        * cccp.c (handle_directive): Ignore comments between # and directive.
                   2789: 
                   2790:        * integrate.c (copy_rtx_and_substitute): Stack-push memrefs need
                   2791:        to be copied.
                   2792: 
                   2793:        * tm-bsd386.h (ASM_OUTPUT_DOUBLE): Undef previous def.
                   2794: 
                   2795:        * reload1.c (alter_reg): Don't reuse spill_stack_slot
                   2796:        if it isn't big enough for this reg's mode.
                   2797: 
                   2798:        * expr.c (emit_move_insn): After force_const_mem, ensure
                   2799:        mem address is valid.
                   2800:        (move_block_to_reg, move_block_from_reg): Likewise.
                   2801: 
                   2802:        * expr.c (expand_call): Spurious TREE_VALUE on args[i].tree_value.
                   2803: 
                   2804:        * m68k.md (zero_extend*): Require register_operand for operand 0.
                   2805: 
                   2806:        * stdarg.h (va_start): Alternate defn for sparc.
                   2807: 
                   2808: Thu Sep 15 11:39:06 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2809: 
                   2810:        * c-parse.y (yylex): When atof gives ERANGE, check for "0.0", etc.
                   2811: 
                   2812:        * assert.h (__assert): Alternative definition for -traditional.
                   2813: 
                   2814:        * output-sparc.c (output_block_move): Initialize xoperands.
                   2815: 
                   2816:        * combine.c (try_combine): Never subst for a reg that is incremented.
                   2817: 
                   2818:        * m68k.md (cmpm pattern): Make the match_operands match memrefs
                   2819:        and check that they are pushes in the extra condition.
                   2820:        This makes reloading handle the pushes properly.
                   2821: 
                   2822:        * expr.c (MOVE_RATIO): Make it 15.  Allow overriding it.
                   2823: 
1.1.1.8   root     2824: Wed Sep 14 09:50:08 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2825: 
1.1.1.9   root     2826:        * c-decl.c (build_enumerator): Use saveable_tree_cons.
                   2827: 
                   2828:        * vax.md (movdf): Use movq when safe.
                   2829: 
1.1.1.8   root     2830:        * Version 1.28 released.
                   2831: 
                   2832:        * tm-sparc.h (FIRST_PARM_CALLER_OFFSET): Defined.
                   2833: 
                   2834: Tue Sep 13 00:11:37 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   2835: 
                   2836:        * tree.c (saveable_tree_cons): New function.
                   2837:        * c-decl.c (pushtag): Use it; lists of tags needed for inlining.
                   2838:        (get_parm_info): Likewise.
                   2839: 
                   2840:        * print-tree.c (dump): Handle each kind of statement node individually.
                   2841: 
                   2842:        * integrate.c (copy_decl_tree): Don't pass DECL_RTL through
                   2843:        copy_rtx_and_substitute if it's a memref with constant address.
                   2844: 
                   2845:        * sdbout.c (sdbout_symbol): Don't output garbage when DECL_RTL
                   2846:        has a form we don't understand.
                   2847: 
                   2848:        * reload.c (find_reloads_address_1): Don't reload an autoincrement
                   2849:        if it has a suitable hard reg already.
                   2850: 
                   2851:        * c-typeck.c (process_init_constructor): Error check after digest_init.
                   2852: 
                   2853:        * c-parse.y (is_reserved_word): Now static.
                   2854: 
                   2855: Mon Sep 12 19:19:28 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2856: 
                   2857:        * i386.md (all push insns): Use `<' for the constraint,
                   2858:        since a push_operand won't fit an `m' constraint on this machine.
                   2859: 
                   2860:        * expr.c (expand_call): If fn name is `__builtin_alloca',
                   2861:        it may be alloca.  This case arises if the user redeclares
                   2862:        `__builtin_alloca'.
                   2863: 
                   2864: Sun Sep 11 01:47:01 1988  Richard Stallman  (rms at gluteus.ai.mit.edu)
                   2865: 
                   2866:        * Eliminate MAX_SETS_PER_INSN.
                   2867:        * cse.c (cse_insn): Combine all the tables and dynamically allocate.
                   2868:        (cse_main): Count the actual number of SETs; don't estimate.
                   2869:        * genconfig.c: Don't calculate MAX_SETS_PER_INSN.
                   2870:        * stmt.c (expand_asm_operands): No limit on # of output operands.
                   2871: 
                   2872:        * expr.c (expand_call):
                   2873:        Store all non-reg parms first, then store all partially-in-reg
                   2874:        parms, then all the (precomputed) wholly-in-reg parms.
                   2875:        Special hair for BLKmode parms which must be passed entirely
                   2876:        in memory; also for BLKmode parms initialized from function calls,
                   2877:        for which it is best to allocate the space before computing value.
                   2878:        Use macro FIRST_PARM_CALLER_OFFSET to handle machines where reg
                   2879:        parms "take up space" on the stack below the stack pointer.
                   2880:        (store_one_arg): Handle case of preallocated stack loc for BLKmode.
                   2881:        Update current_args_size here, not in caller.
                   2882: 
                   2883: Sat Sep 10 19:58:03 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2884: 
                   2885:        * output-sparc.c (output_scc_insn): Changed asm templates.
                   2886:        Use common code to emit the move insns and label at the end of fn.
                   2887:        (output_mul_by_constant): Use %g1 as temporary reg.
                   2888: 
                   2889:        * sparc.md (indexed load pattern): Deleted.
                   2890:        (fix_truncdfsi2): Don't ignore value of output_fp_move_double.
                   2891:        (cse'd multiply): Operand 1 predicate is general_operand.
                   2892:        (return peepholes): Conditionalize on ! TARGET_EPILOGUE.
                   2893: 
                   2894:        * tm-sparc.h (INIT_CUMULATIVE_ARGS,FUNCTION_ARG...):
                   2895:        Use partial regs for args that start in regs but won't entirely fit.
                   2896: 
                   2897:        * tm-sparc.h (CONST_COSTS): 0 for args that can be immediate.
                   2898:        (STRUCTURE_SIZE_BOUNDARY): Now 8.
                   2899:        (STRUCT_VALUE_OFFSET): Defined as symbolic name for `64'.
                   2900: 
                   2901:        * expr.c (struct arg_data): New component `stack' says where in the
                   2902:        stack to put a BLKmode arg (if it's nonzero).
                   2903:        (store_one_arg): Handle case where it's nonzero.
                   2904:        (target_for_arg): New fn, precompute stack locn for BLKmode arg.
                   2905: 
                   2906: Fri Sep  9 01:41:13 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   2907: 
                   2908:        * cse.c (fold_rtx): Misnested ifs screwed SUBREG case.
                   2909: 
                   2910:        * reload.c (find_reloads_toplev): Special case for (SUBREG REG)
                   2911:        where REG is equivalent to a CONST_INT.
                   2912:        (find_reloads): Don't ignore the value returned by find_reloads_toplev.
                   2913:        Treat a (SUBREG constant) like a (SUBREG MEM): set force_reload.
                   2914: 
                   2915:        * reload.c (push_reload): Abort if memory subreg is not
                   2916:        paradoxical; the MEM mode should be narrower than the SUBREG.
                   2917: 
                   2918:        * stmt.c (fixup_var_ref_1): Fixup memory subregs in an insn
                   2919:        copying VAR to or from a register.
                   2920: 
                   2921:        * m68k.md (movdi, movdf): the x-reg constraint accidentally allowed
                   2922:        moving rm to rm with no &.
                   2923: 
                   2924:        * vax.md (call_value): Typo.
                   2925: 
                   2926:        * expr.c (emit_block_move, emit_push_insn): prefer movstrqi to movstrsi
                   2927: 
                   2928:        * m68k.md (FPA multiply): bad opcodes for 3-operand multiply insns.
                   2929: 
                   2930: Thu Sep  8 18:22:14 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2931: 
                   2932:        * c-parse.y: Use YYERROR instead of synonym YYFAIL.
                   2933:        BISON VERSIONS PRIOR TO THIS DATE WON'T WORK!
                   2934: 
                   2935:        * c-typeck.c (digest_init): Use TYPE_MAIN_VARIANT of array elt type.
                   2936: 
                   2937:        * tm-sun[23].h (CPP_SPEC, ASM_SPEC): Let -m(c|)680[12]0 control
                   2938:        options for CPP and assembler.
                   2939: 
                   2940: Wed Sep  7 13:44:59 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2941: 
                   2942:        * New handling of reloading of PRE_DEC, etc.
                   2943:        Now reload_in is the PRE_DEC, etc, and reload_inc is always positive.
                   2944:        * reload.c (push_reloads): Old code to set reload_inc deleted.
                   2945:        (find_reloads_address_1): Call push_reload the new way.
                   2946:        (find_inc_amount): Value always positive.
                   2947:        * reload1.c (choose_reload_targets): Detect this case.
                   2948:        (inc_for_reload): New fn; does the real work for this case.
                   2949:        * m68k.md (call, call_value): Fn address must be offsetable.
                   2950: 
                   2951:        * combine.c (try_distrib): Reject strange cases such as if
                   2952:        result of PREV1 or PREV2 is used in a memory address in INSN.
                   2953: 
                   2954:        * vax.md (movsf): Generate movl instead of movf.
                   2955: 
                   2956:        * expr.c (expand_call): If have regparms, store all BLKmode args
                   2957:        before all the other args.
                   2958:        (store_one_arg): New subroutine broken out.
                   2959: 
                   2960:        * output-sparc.c (output_block_move): Complete rewrite.
                   2961: 
                   2962:        * sparc.md (cse'd multiply insn): Typo in asm-output code.
                   2963: 
                   2964: Tue Sep  6 20:05:48 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2965: 
                   2966:        * c-parse.y (yylex, etc.) Install Schmidt's perfect hash table.
                   2967: 
                   2968:        * gcc.c: handle extension `.cc'.
                   2969: 
1.1.1.7   root     2970: Mon Sep  5 12:09:58 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2971: 
                   2972:        * Version 1.27 released.
                   2973: 
1.1.1.13  root     2974:        * tm-i386.h (PREFERRED_RELOAD_REG): When reloading a QImode,
1.1.1.7   root     2975:        make sure the class doesn't include %esi or %edi.
                   2976:        * i386.md (movqi): Eliminate only use of the class `x',
                   2977:        for which PREFERRED_RELOAD_REG cannot work.
                   2978:        (In next version, get rid of INDEX_CLASS).
                   2979:        Also use `*' to cause preferencing of Q_REGS.
1.1.1.13  root     2980:        * tm-m68k.h (PREFERRED_RELOAD_REG): When reloading a QImode,
1.1.1.7   root     2981:        use DATA_REGS.
                   2982: 
                   2983:        * reload.c (push_reloads): Braino in last change when IN == 0.
                   2984: 
                   2985:        * flow.c (mark_used_regs, mark_set_1): Bug if HARD_REGNO_NREGS
                   2986:        returns 0 for VOIDmode reg (inside a CLOBBER).
                   2987: 
                   2988:        * c-parse.y (asm_operand): Handle `("REGNAME")' as an operand.
                   2989:        * recog.c (decode_asm_operands, asm_noperands): Ignore any CLOBBERs.
                   2990:        * regclass.c (reg_names): Variable now global.
                   2991:        * stmt.c (expand_asm_operands): Generate CLOBBERS when appropriate.
                   2992: 
                   2993:        * stmt.c (assign_parms): Ignore parms that aren't PARM_DECLs.
                   2994: 
                   2995:        * varasm.c (assemble_variable): Do ASM_OUTPUT_EXTERNAL for functions.
                   2996: 
                   2997:        * c-parse.y (yylex): floatflag is now an enum.
                   2998:        Detect invalid use of decimal points (> 1, or in exponent)
                   2999:        and multiple exponent letters.
                   3000: 
                   3001:        * expr.c (expand_call): If inlining fails, set TREE_ADDRESSABLE.
                   3002: 
                   3003: Sun Sep  4 00:36:30 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   3004: 
                   3005:        * c-decl.c (grokdeclarator): A const array becomes an array of consts.
                   3006:        * c-typeck.c (build_array_ref): Array ref is const if array elts are.
                   3007: 
                   3008:        * output-sparc.c (output_move_double): Change criteria for ldd, std.
                   3009:        (output_fp_move_double): New alternatives avoid ldd, std for
                   3010:        stack refs that aren't aligned.
                   3011:        (output_block_move): Use %g1 as temp reg.
                   3012: 
                   3013:        * sparc.md (floating point load from constant mem address):
                   3014:        Use %g1 as temp reg.  Use output_move_double in DF case, not ldd.
                   3015:        (movsf): Asm insn typo in FPreg to FPreg case.
                   3016:        (floatsi{s,d}f2): Constraint changed.
                   3017:        Also new special case pattern in front of it.
                   3018:        (fix_truncdfsi2): Use output_move_double, not ldd.
                   3019:        (addsi3, subsi3): Use %g1 as temp reg.
                   3020:        (cse-optimized multiply): Constraint now `g'; output generalized.
                   3021:        (andsi3, orsi3, xorsi3): Use %g1 as temp reg.
                   3022: 
                   3023:        * reload.c (find_reloads): Force int constants into memory just
                   3024:        like floating ones, if memory is allowed and no regs are.
                   3025: 
                   3026:        * expr.c (expand_call): Don't treat structure_value_addr like a parm
                   3027:        if the first parm would be passed in a register.
                   3028:        Also, write comments for all local vars.
                   3029: 
                   3030:        * tm-386v.h (START_SPEC): Use {g,m}crt1.o, not {g,m}crt0.o.
                   3031:        (LIB_SPEC): Always use crtn.o.
                   3032: 
                   3033: Sat Sep  3 13:05:50 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3034: 
                   3035:        * explow.c (plus_constant): Don't put CONST around lone SYMBOL_REF.
                   3036: 
                   3037:        * combine.c (subst): Simplify zero- or sign-extend of a constant.
                   3038: 
                   3039:        * expr.c (expand_expr): for REAL_CST, etc., check for invalid
                   3040:        memory addresses and copy into registers.
                   3041: 
                   3042:        * integrate.c (expand_inline_function): If incoming struct value addr
                   3043:        is in memory, map it like a memory parameter.
                   3044: 
                   3045:        * tm-*.h (FIRST_PARM_OFFSET): Now takes fndecl as argument.
                   3046:        * integrate.c (expand_inline_function): Calc., use and save
                   3047:        this fns value of FIRST_PARM_OFFSET.
                   3048:        (copy_rtx_and_substitute): Use that value.
                   3049:        * stmt.c (assign_parms): Likewise.
                   3050: 
                   3051:        * tm-sparc.h (FIRST_PARM_OFFSET): Make it 64 if value is BLKmode.
                   3052:        (STRUCT_VALUE{,_INCOMING}): Put the value in 64(fp).
                   3053: 
                   3054:        * tm-sparc.h (PRINT_OPERAND_ADDRESS): Print offsets in decimal.
                   3055:        Avoid excess `+' before a negative offset.
                   3056: 
                   3057:        * stmt.c (expand_function_start): Create the return value rtl
                   3058:        before making the tail-recursion loop point.
                   3059: 
                   3060:        * combine.c (gen_lowpart_for_combine): Generate a paradoxical subreg
                   3061:        rather than a wider memref.
                   3062: 
                   3063:        * reload.c (push_reload): Extend last change to case where OUT != 0.
                   3064: 
                   3065: Fri Sep  2 11:43:20 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3066: 
                   3067:        * stmt.c (fixup_var_refs): Adjust last_parm_insn when deleting insns.
                   3068: 
                   3069:        * expr.c (emit_push_insn): calling memcpy, bump TEMP 2 pointers worth.
                   3070: 
                   3071: Thu Sep  1 16:39:57 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3072: 
                   3073:        * reload1.c (choose_reload_targets): Test for canceled reload
                   3074:        before looking inside reload_out.
                   3075: 
                   3076:        * jump.c (jump_optimize): Bug in last change.
                   3077: 
                   3078:        * m68k.md (return): Pattern disabled; confuses Aug 29 stmt.c change.
                   3079:        * ns32k.md, i386.md: likewise.
                   3080: 
                   3081:        * emit-rtl.c (emit_note_force): New, like emit_note but always do it.
                   3082:        * stmt.c (expand_function_end): Use emit_note_force.
                   3083: 
                   3084: Wed Aug 31 11:34:08 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3085: 
                   3086:        * reload1.c (alter_reg): New arg FROM_REG is hard reg that the pseudo
                   3087:        was spilled from.  Works with spill_stack_slot.  Callers changed.
                   3088:        Now all pseudos spilled from one hard reg get the same slot.
                   3089:        (reload): Initialize new variable spill_stack_slot.
                   3090: 
                   3091:        * cse.c (cse_insn): Don't insert floating point mems if -ffloat-store.
                   3092: 
                   3093:        * reload.c (find_equiv_reg): Allow no equivs for volatile memrefs.
                   3094:        Also none for floating mem refs if -ffloat-store.
                   3095: 
                   3096:        * output-sparc.c (output_mul_by_constant): make `p' and `log' unsigned.
                   3097: 
                   3098: Tue Aug 30 13:47:12 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3099: 
                   3100:        * jump.c (jump_optimize): Ignore other NOTEs while looking for
                   3101:        a NOTE_INSN_FUNCTION_END.
                   3102: 
                   3103:        * integrate.c (save_for_inline): Flush extra call to max_reg_num.
                   3104:        Don't copy NOTEs that are NOTE_INSN_FUNCTION_END.
                   3105:        (copy_for_inline): Don't copy NOTEs that are NOTE_INSN_FUNCTION_END.
                   3106: 
                   3107:        * stmt.c (optimize_bit_field): If bit field is SRC, strip subregs
                   3108:        from the DEST.
                   3109: 
                   3110:        * expmed.c (expand_mult): Special case for -1 as one operand.
                   3111: 
                   3112: Mon Aug 29 12:14:51 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3113: 
                   3114:        * stmt.c (expand_goto_internal, expand_fixup): New arg LAST_INSN.
                   3115:        (expand_return): Pass that arg in tail-recursive case.
                   3116:        (other callers): Pass 0 for that arg.
                   3117:        (expand_null_return): Handle HAVE_return nonzero w/ FUNCTION_EPILOGUE.
                   3118:        (expand_null_return_1): New fn, has guts of old expand_null_return.
                   3119:        (expand_return): Call expand_null_return_1 to pass LAST_INSN arg.
                   3120:        (expand_return): Handle HAVE_return nonzero w/ FUNCTION_EPILOGUE.
                   3121:        (expand_function_{start,end}): Likewise.
                   3122:        (expand_cleanups): Fix typo in recursive-list case.
                   3123:        (move_cleanups_up): New fn.
                   3124: 
                   3125:        * expr.c (expand_call): Execute cleanups_of_this_call on exiting.
                   3126:        Notice calls to __builtin_new (but don't do anything about them yet).
                   3127: 
                   3128:        * reload.c (push_reload): If reloading a (SUBREG (MEM ...) ...),
                   3129:        really reload just the MEM in the MEM's own mode.
                   3130: 
                   3131:        * sparc.md: Define patterns for insns that set the ccs.
                   3132:        Define set-flag insns.
                   3133:        New patterns for indexed load, and for optimizing signed bit fields.
                   3134:        (mulsi3, umulsi3): Give "r" constraint to operand 0.
                   3135:        Peephole optimizers recognize some cases where delay insns are safe.
                   3136:        Changed patterns for call and return insns as well.
                   3137: 
                   3138:        * output-sparc.c (single_insn_src_p): New fn.
                   3139:        (output_delay_insn): New fn.
                   3140: 
                   3141:        * tm-sparc.h (TARGET_EPILOGUE): New target flag.
                   3142:        (NOTICE_UPDATE_CC): New clause for funny PARALLEL with a REG in it.
                   3143: 
                   3144:        * m68k.md (movqi): Use *'s to ensure preferencing d-regs.
                   3145: 
                   3146:        * c-parse.y (datadef): If traditional, no warning about no specs.
                   3147: 
                   3148: Sun Aug 28 14:34:33 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3149: 
                   3150:        * tm-i386.h: Define PROMOTE_PROTOTYPES.
                   3151:        POINTER_BOUNDARY now 32.
                   3152: 
                   3153:        * regclass.c (reg_scan): Compute `max_parallel', max # of sets and
                   3154:        clobbers in any insn in this function.
                   3155:        * global-alloc.c (global_conflicts): Use that, not MAX_SETS_PER_INSN.
                   3156: 
                   3157:        * stmt.c (expand_asm_operands): MAX_SETS_PER_INSN limits # output ops.
                   3158: 
                   3159:        * emit-rtl.c (init_emit_once): Make elt 2 of {f,d}const0_rtx nonzero.
                   3160: 
                   3161:        * c-decl.c (lang_decode_option): Handle -Wwrite-string.
                   3162:        * c-parse.y (combine_strings): If that flag, make array of const char.
                   3163: 
                   3164:        * expr.c (expand_expr): for INTEGER_CST, always use immed_double_const;
                   3165:        never do output_constant_def (it didn't work).
                   3166:        Also heed WORDS_BIG_ENDIAN.
                   3167: 
                   3168:        * varasm.c (output_constant): Handle integer CONST_DOUBLEs.
                   3169:        (output_constant_def): Abort if arg is an INTEGER_CST.
                   3170: 
                   3171:        * emit-rtl.c (gen_rtx): Don't return {f,d}const0_rtx for DImode.
                   3172: 
                   3173: Sat Aug 27 12:37:23 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3174: 
                   3175:        * c-decl.c (pushdecl): Global extern decls set TREE_PUBLIC
                   3176:        like local ones.
                   3177: 
                   3178:        * integrate.c (expand_inline_function): Handle parms that were
                   3179:        passed in registers but whose homes are on the stack.
                   3180: 
                   3181:        * varasm.c (force_const_mem): Output ints according to spec'd mode.
                   3182:        ({record,compare}_constant_rtx,const_hash_rtx,decode_rtx_const):
                   3183:        Take mode as argument; pass it along.
                   3184: 
                   3185:        * c-parse.y (read_escape): No warning for `\{' or `\['.
                   3186: 
                   3187: Fri Aug 26 12:23:07 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3188: 
                   3189:        * stmt.c (fixup_memory_subreg): Typo calculating big-endian adjust.
                   3190: 
                   3191:        * vax.md (call_value): Handle >255 args as in `call'.
                   3192: 
                   3193: Thu Aug 25 16:00:51 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3194: 
                   3195:        * jump.c (delete_jump): Don't delete the cc-setter if it has autoinc.
                   3196: 
                   3197: Wed Aug 24 16:33:37 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3198: 
                   3199:        * expr.c (expand_expr): For sun with a COND_EXPR, use SUBTARGET
                   3200:        if validate_subtarget says ok.
                   3201: 
                   3202:        * tree.c (build_index_type): make_index_type moved here and renamed.
                   3203: 
                   3204:        * combine.c (move_deaths_2): New function.
                   3205:        (try_distrib): Use that, not move_deaths.
                   3206: 
                   3207:        * tm-sparc.h (SHIFT_COUNT_TRUNCATED, STORE_FLAG_VALUE): Define them.
                   3208: 
                   3209:        * tm-sparc.h: FUNCTION_{PRO,EPI}LOGUE: Save room for ins and
                   3210:        locals to spill to the frame if any ins *or* locals are live.
                   3211: 
                   3212:        * tm-sparc.h (NOTICE_UPDATE_CC): Delete the clause that always
                   3213:        cleared the cc's for unrecognized insns.
                   3214: 
                   3215:        * reload1.c (reload_as_needed): Don't try to use a spill-reg
                   3216:        in a basic block that wasn't spilled: ignore optional reloads.
                   3217: 
                   3218: Tue Aug 23 09:45:05 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3219: 
                   3220:        * output-sparc.c (output_scc_insn): New function.
                   3221: 
                   3222:        * expr.c (expand_builtin, alloca): Round result of alloca
                   3223:        up to a multiple of STACK_BYTES.
                   3224: 
                   3225:        * toplev.c (compile_file): Default main_input_filename is cc1 input.
                   3226: 
                   3227:        * tm-i386.h (FUNCTION_BOUNDARY): 32 avoids extra prefetch.
                   3228: 
                   3229:        * i386.md (movdi, movdf): Add `&' where needed in constraints.
                   3230: 
                   3231: Mon Aug 22 11:57:51 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3232: 
                   3233:        * symout.c (symout_finish): Allocate typevector after the symout_types.
                   3234: 
                   3235: Sun Aug 21 16:10:54 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3236: 
                   3237:        * tm-3b1.h (ASM_FORMAT_PRIVATE_NAME): Use a `_' as well as `%'.
                   3238: 
                   3239:        * expr.c (expand_expr): Typo setting MODE for MAX_EXPR.
                   3240: 
                   3241:        * Makefile (stage*): If ln fails, copy gnulib to stage*.
                   3242:        (realclean): Do `clean' and then some.
                   3243:        (install): new var USER_H specifies headers to copy.
                   3244: 
                   3245:        * c-typeck.c (build_binary_op_nodefault): LT_EXPR, etc.
                   3246:        on ptr vs int failed to set result_type.
                   3247:        (build_conditional_expr): Don't replace nonzero int
                   3248:        with null_pointer_node.
                   3249: 
                   3250:        * combine.c (remove_links, try_distrib): New fns.
                   3251:        (subst): New simplifications for ZERO_EXTEND, SIGN_EXTEND.
                   3252:        (combine_instructions): Call try_distrib.
                   3253:        (FAKE_EXTEND_SAFE_P): Allow SUBREGs.
                   3254: 
                   3255:        * m68k.md (non-FPA pattern for floatsisf2): Typo, had DF for SF.
                   3256: 
                   3257: Sat Aug 20 12:04:37 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3258: 
                   3259:        * integrate.c (copy_address): Variant of copy_rtx_and_substitute.
                   3260:        (copy_rtx_and_substitute): Use copy_address for MEM address that
                   3261:        doesn't satisfy memory_address_p.
                   3262: 
                   3263:        * reload.c (find_reloads): If force_reload set, don't set WIN
                   3264:        for a MEM even if `m', `o' or `g' in constraint.
                   3265: 
                   3266:        * i386.md (expendqihi2): Typo in asm template.
                   3267: 
                   3268:        * toplev.c (rest_of_compilation): Call clear_const_double_mem.
                   3269:        * varasm.c (init_const_rtx_hash_table): Don't call it here.
                   3270:        (immed_real_const): Don't record the rtx in the REAL_CST node.
                   3271:        (force_const_double_mem, clear_const_double_mem): Use cc0_rtx, not 0,
                   3272:        as flag for a CONST_DOUBLE not on the chain.
                   3273: 
                   3274:        * cccp.c (handle_directive): If traditional, do scan strings
                   3275:        but accept unterminated ones.
                   3276:        (collect_expansion): -traditional: Don't recognize comments in strings.
                   3277:        Stringify arguments that appear within strings.
                   3278:        (skip_quoted_string): -traditional: Always exit at newline.
                   3279:        (macroexpand): -traditional: Don't put `"'s around stringified arg.
                   3280:        (macarg): Set stringified_length accordingly.
                   3281: 
                   3282:        * c-decl.c (duplicate_decls): Avoid error redeclaring fcn after
                   3283:        implicit decl if -traditional.
                   3284: 
                   3285:        * toplev.c (announce_function, report_error_function):
                   3286:        Change communication logic between these fcns.
                   3287: 
                   3288:        * c-decl.c (lang_decode_options): Handle -Wall here.
                   3289:        * toplev.c (main): not here.
                   3290: 
                   3291:        * tm-bsd386.h: Don't include tm-i386.h--be like tm-att386.h
                   3292: 
                   3293: Fri Aug 19 11:08:36 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3294: 
                   3295:        * config-sun4.h: If sparc, include config-sparc.h.
                   3296:        Never include alloca.h.
                   3297: 
                   3298:        * tm-m68k.h (TARGET_SWITCHES): Define `-mc68020', `-mc68000'.
                   3299: 
                   3300:        * c-decl.c (init_decl_processing): If traditional, use signed sizetype.
                   3301: 
                   3302:        * gcc.c (main): Use stderr for printing version.
                   3303: 
1.1.1.6   root     3304: Thu Aug 18 14:42:36 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3305: 
                   3306:        * Version 1.26 released.
                   3307: 
                   3308:        * m68k.md (movsi): Constraint change for fpa regs.
                   3309: 
                   3310:        * reload1.c (choose_reload_targets): Clear reg_reloaded_contents
                   3311:        for all regs of a multi-reg group.
                   3312: 
                   3313:        * reload.c (find_equiv_reg): HARD_REGNO_NREGS wants mode, not size.
                   3314:        Check properly for overlap against multiword reload regs.
                   3315: 
                   3316: Tue Aug 16 14:54:18 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3317: 
                   3318:        * varasm.c, expr.c (immed_double_const): immed_real_const_2 renamed.
                   3319: 
                   3320:        * tm-i386.h (SFVALUE): Should be `double'.
                   3321:        * tm-i386v.h (SFVALUE): Don't override it.
                   3322: 
                   3323:        * tm-i386.h (ASM_OUTPUT_ASCII): Don't define it.
                   3324:        * tm-att386.h: Definition moved here.
                   3325: 
                   3326:        * tm-bsd386.h: New file, for Sequent.
                   3327:        * tm-seq386.h: New file, for Sequent.
                   3328:        * config-i386.h: New file, for Sequent.
                   3329: 
                   3330:        * expr.c (push_block): Take account of STACK_POINTER_OFFSET.
                   3331:        (expand_call): Therefore need not do so here.
                   3332: 
                   3333:        * optabs.c (expand_fix): Typo if going via DImode.
                   3334: 
                   3335:        * reload1.c (choose_reload_targets): Don't * reload_reg_rtx if 0.
                   3336: 
                   3337: Mon Aug 15 01:11:49 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3338: 
                   3339:        * integrate.c (copy_for_inline): Don't try copying 0-length vector.
                   3340:        (copy_rtx_and_substitute): Likewise.
                   3341: 
                   3342:        * m68k.md (andsi3): use clrw instead of andw #0.
                   3343: 
                   3344:        * print-tree.c (walk): Don't omit permanent nodes reach from temps.
                   3345: 
                   3346:        * m68k.md (zero_extend...): Reinstall the old zero-extend insns
                   3347:        without names, so they can help the combiner.
                   3348: 
                   3349:        * expr.c (expand_expr): Don't use hard regs as subtargets.
                   3350:        * combine.c (FAKE_EXTEND_SAFE_P): Always consider MEMs safe.
                   3351:        * reload.c (find_reloads): For (SUBREG (MEM ...)) set force_reload.
                   3352: 
                   3353:        * c-parse.y (redescape): Don't warn for `\('.
                   3354: 
                   3355:        * reload.c (find_reloads_address): #if was backwards.
                   3356: 
                   3357: Sun Aug 14 16:52:22 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3358: 
                   3359:        * c-typeck.c (shorten_compare): Change switch to chain of ifs.
                   3360: 
                   3361:        * tm-ns32k.h (PRINT_OPERAND): CONST_DOUBLE contains a double
                   3362:        even if it's SFmode.
                   3363:        (FUNCTION_PROLOGUE): If MAIN_FUNCTION_PROLOGUE defined, run it.
                   3364: 
                   3365:        * cccp.c (file_buf): Rename field `free' to `free_ptr'.
                   3366: 
                   3367:        * Makefile (ALLOCA, MALLOC, LIBDEPS): New variables for easier
                   3368:        customization.  Executables depend on LIBDEPS instead of OBSTACK1.
                   3369:        (cccp): Deps and libs now work like the others.
                   3370: 
                   3371:        * output-i386.c (notice_update_cc): Rewritten for clarity.
                   3372: 
                   3373:        * tm-i386.h (OUTPUT_JUMP): If CC_IN_OVERFLOW, abort.
                   3374: 
                   3375:        * recog.c (push_operand): Test for stack_pointer_rtx.
                   3376: 
                   3377:        * integrate.c (copy_rtx_and_substitute): Don't submit push-operands
                   3378:        to `memory_address'--it would lose on machines where pushing is
                   3379:        a special insn, not an addressing mode.
                   3380: 
                   3381:        * output-i386.c (top_dead_p): No more redundancy--that didn't work.
                   3382:        Now one method if optimized, one for call_insns if noopt, one for
                   3383:        other insns if noopt.
                   3384:        (call_top_dead_p): fp_top_dead_p renamed
                   3385:        and only the call-insn clause remains.
                   3386: 
                   3387:        * i386.md (cmpsf, cmpdf): Output was backwards.
                   3388:        (", tstsf, tstdf): Set CC_IN_80387.
                   3389:        (incb pattern): Restrict allowable registers.
                   3390:        (movsf, movdf): Call top_dead_p only when absolutely necessary.
                   3391:        (call_value): Use top_dead_p, not subroutine.
                   3392: 
                   3393: Sat Aug 13 15:19:23 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3394: 
                   3395:        * stupid.c (stupid_life_analysis): If only 1 reg class,
                   3396:        call stupid_find_reg only once.
                   3397: 
                   3398:        * stmt.c (expand_function_start):
                   3399:        Clear current_function_pretend_args_size.
                   3400: 
                   3401:        * expr.c (store_constructor): If target is hard reg, go via a pseudo.
                   3402: 
                   3403:        * varasm.c (real_constant_chain): Now static in this file.
                   3404:        (force_const_double_mem): Put R on chain if not already on.
                   3405:        (clear_const_double_mem): Set XEXP (,2) to 0;
                   3406:        also clear real_constant_chain and the chain links.
                   3407:        * emit-rtl.c (init_emit_once): Put 0 in XEXP (,2) of {d,f}const0_rtx.
                   3408:        * cse.c (canon_hash): For CONST_DOUBLE, ignore elts other than 0,1.
                   3409: 
                   3410: Fri Aug 12 11:48:38 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3411: 
                   3412:        * reload1.c (order_regs_for_reload): Handle REG_ALLOC_ORDER more spots.
                   3413: 
                   3414:        * global-alloc.c (find_reg): error handling REG_ALLOC_ORDER;
                   3415:        also error skipping regs known to be hopeless.
                   3416:        * local-alloc.c (find_free_reg): error skipping hopeless regs.
                   3417:        * stupid.c (stupid_find_reg): likewise.
                   3418: 
                   3419:        * local-alloc.c (qty_compare_1): typo, had q1 for q2.
                   3420: 
                   3421:        * expr.c (expand_expr): Don't use supplied target when optimizing
                   3422:        arithmetic using a comparison or conditional; that target could be
                   3423:        needed for the result of the comparison.
                   3424: 
                   3425:        * reload1.c (reload): Don't set reg_equiv_constant for hard regs.
                   3426: 
                   3427:        * stupid.c (stupid_life_analysis): Ignore reg R if regno_reg_rtx[R]==0.
                   3428: 
                   3429:        * symout.c (symout_finish): Use perm. links in permanent_fwd_refs.
                   3430: 
                   3431:        * i386.md (movhi, movqi): Check no_labels_between_p.
                   3432: 
                   3433: Thu Aug 11 10:44:46 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3434: 
                   3435:        * c-parse.y (yylex): Out-of-range float is just a warning.
                   3436: 
                   3437:        * tm-gnx-v3.h: New file for Genix.
                   3438:        * ns32k.md (movsi, call, call_value): GNX_V3 conditionals.
                   3439:        * tm-ns32k.h (PRINT_OPERAND_ADDRESS): Changes for Genix.
                   3440: 
                   3441:        * ns32k.md (insv patterns): Operand 0 is read-write.
                   3442: 
                   3443:        * i386.md (tstsf, tstdf): Don't push the arg if already in st(0).
                   3444: 
                   3445:        * varasm.c (output_constant_def): If EXP is permanent, the rtl is too.
                   3446: 
                   3447:        * tm-*.h (ASM_OUTPUT_{LOCAL,COMMON}): New 4th arg, rounded size
                   3448:        vs unrounded size.
                   3449:        * varasm.c (assemble_variable): Pass new arg.
                   3450:        * symout.c (symout_init): Likewise.
                   3451: 
                   3452:        * cccp.c (rescan): Don't let char const cross lines.
                   3453:        (skip_quoted_string, macarg1, discard_comments): Likewise.
                   3454: 
                   3455:        * expr.c (expand_expr, VAR_DECL case): handle flag_force_addr.
                   3456: 
                   3457:        * tm-i386v.h (TAREGT_DEFAULT): Assume 80387.
                   3458:        * config-i386v.h (alloca): Use __builtin_alloca under GNU C.
                   3459: 
                   3460: Wed Aug 10 11:23:06 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3461: 
                   3462:        * reload.c (find_reloads): Alternative loses
                   3463:        if it has no regs for a reg operand.
                   3464: 
                   3465:        * tm-sun3.h (STARTFILE_SPEC): Define, for fpa's sake.
                   3466:        * tm-m68k.h: New hard regs, reg classes, reg class letters,
                   3467:        target flag and switch, operand syntax and CC handling for fpa.
                   3468:        * m68k.md: Add fpa insn patterns.
                   3469:        * output-m68k.c (standard_SunFPA_constant_p): New fn.
                   3470:        (output_move_const_{single,double}): Handle fpa regs.
                   3471:        (singlemove_string): Handle fpa regs.
                   3472: 
                   3473:        * stmt.c (fixup_memory_subreg): Result had wrong mode.
                   3474: 
                   3475:        * ns32k.md (insv patterns): Adjust bit-number along with address.
                   3476: 
                   3477:        * sparc.md (negdf2, absdf2): Order of the words was backwards.
                   3478: 
                   3479:        * reload1.c (new_spill_reg): End confusion about meaning of 1st arg.
                   3480:        Arg counted_for_nongroups had wrong type.
                   3481: 
                   3482:        * tm-m68k.h (FUNCTION_{PRO,EPI}LOGUE): Round frame size to word bdry.
                   3483: 
                   3484: Tue Aug  9 07:53:59 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3485: 
                   3486:        * tm-i386.h (ASM_OUTPUT_ASCII): Don't lose the sign bit.
                   3487: 
                   3488:        * tm-i386v.h (STARTFILE_SPEC, LIB_SPEC): Use crt1.o, crtn.o.
                   3489: 
                   3490:        * stmt.c (fixup_var_refs_1): fixup all memory subregs.
                   3491: 
                   3492:        * reload1.c (choose_reload_targets): Don't strip paradoxical
                   3493:        subregs from values to be reloaded.
                   3494: 
                   3495:        * cccp.c: Comment out text after #endif.
                   3496: 
                   3497:        * c-parse.y (init): Allow empty braces as init; warn if pedantic.
                   3498: 
                   3499:        * c-decl.c: Move C-specific options from toplev.c.
                   3500:        * c-tree.h: Move their externs from flags.h.
                   3501:        * c-decl.c (lang_decode_option): New fn called by `main'.
                   3502:        * toplev.c (sorry, really_sorry): New error reporting fns.
                   3503:        * c-decl.c (language_string): New var, name of this language.
                   3504: 
                   3505:        * c-parse.y: Don't include flags.h.
                   3506:        * dbxout.c: Do include it.
                   3507: 
                   3508:        * dbxout.c (dbxout_type): Handle function fields and static fields
                   3509:        and basetypes.  Handle METHOD_TYPE and REFERENCE_TYPE.
                   3510:        Abort on unexpected tree code.
                   3511:        (dbxout_args): New fn to output prototype arg types.
                   3512:        (everywhere): Use IDENTIFIER_LENGTH instead of strlen.
                   3513:        (dbxout_type_name): Cleanup; avoid strlen.
                   3514: 
                   3515:        * local-alloc.c (reg_is_set): Don't call {post_,}mark_life for pseudos.
                   3516: 
                   3517:        * tree.h (TYPE_BASECLASSES): New field in type nodes.
                   3518: 
                   3519:        * ns32k.md (insv patterns): Was adjusting the address wrong.
                   3520: 
                   3521:        * c-decl.c (grokdeclarator): Just a warning for inline varargs fn.
                   3522: 
                   3523: Mon Aug  8 08:16:46 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3524: 
                   3525:        * varasm.c (immed_real_const_2): Guts of creating a CONST_DOUBLE.
                   3526:        * expr.c (expand_expr): Use that for 64-bit int constants.
                   3527: 
                   3528:        * loop.c (invariant_p): Don't check x->unchanging; it's not safe.
                   3529: 
                   3530:        * c-typeck.c (build_indirect_ref): Handle flag_volatile here
                   3531:        so that it propagates to component_refs.
                   3532:        * expr.c (expand_expr): No need to handle it here.
                   3533: 
                   3534:        * integrate.c (save_for_inline, expand_inline_function):
                   3535:        Set up insn_map to record mapping of old uids to copied insns.
                   3536:        (copy_for_inline, copy_rtx_and_substitute): Map 'u' refs via insn_map.
                   3537: 
                   3538:        * emit-rtl (emit_label, emit_barrier): Return what was emitted.
                   3539: 
                   3540:        * sdbout.c (sdbout_filename): Split off from sdbout_init.
                   3541:        * tm-encore.h, tm-3b1.h, tm-vaxv.h, tm-att386.h (ASM_FILE_START):
                   3542:        Call sdbout_filename.
                   3543: 
                   3544:        * toplev.c: Better messages for invalid options.
                   3545: 
                   3546:        * tm-m68k.h (PRINT_OPERAND_ADDRESS): Handle labelref+basereg.
                   3547: 
                   3548:        * tm-3b1.h (PUT_SDB_DIM): Override sdbout's definition.
                   3549:        (ASM_FORMAT_PRIVATE_NAME): Override tm-hp...s definition.
                   3550:        (PUT_SDB_PLAIN_DEF): Prepend `~' to specified name.
                   3551:        (SDB_GENERATE_FAKE): Prepend `~'.
                   3552: 
                   3553:        * gcc.c: Include config.h before obstack.h.
                   3554: 
                   3555: Sun Aug  7 11:17:56 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3556: 
                   3557:        * stor-layout.c (layout_decl): Do nothing with CONST_DECL.
                   3558:        Treat FRIEND_DECLs like variables.
                   3559:        (layout_record): Handle VAR_DECLs and FUNCTION_DECLs in the fieldlist.
                   3560:        Handle basetypes (almost like fields).
                   3561:        (layout_type): Handle REFERENCE_TYPE and METHOD_TYPE.
                   3562: 
                   3563:        * tree.c (temp_tree_cons): New fn.
                   3564:        (array_type_nelts, simple_cst_equal): New fns.
                   3565:        (lvalue_p): CALL_EXPR is an lvalue if it returns REFERENCE_TYPE.
                   3566:        () Manage TYPE_REFERENCE_TO.
                   3567:        (TYPE_HASH_SIZE): Bigger.
                   3568:        (type_list_equal): Compare the TREE_PURPOSE fields.
                   3569:        (build_reference_type, build_method_type): New fns.
                   3570: 
                   3571:        * stmt.c (block_stack): Add field `cleanups' to each element.
                   3572:        (expand_{start,end}_bindings, expand_decl): Update that field.
                   3573:        (stack_block_stack): Now includes blocks that have cleanups.
                   3574:        (goto_fixup_chain): Add field `cleanup_list_list'.
                   3575:        (expand_goto_internal): Execute cleanups for blocks being exited.
                   3576:        (expand_fixup): Make a fixup if any block has cleanups.
                   3577:        (fixup_gotos): New args CLEANUPS and DONT_JUMP_IN.
                   3578:        Execute cleanups for blocks being exited, or add to cleanup_list_list.
                   3579:        (expand_end_bindings): New arg DONT_JUMP_IN.  Execute any cleanups.
                   3580:        (expand_decl): New arg CLEANUP.
                   3581:        (expand_cleanups, fixup_cleanups): New functions.
                   3582:        * c-decl.c: Calls to expand_decl pass new arg.
                   3583:        * c-parse.y: Calls to expand_end_bindings pass new arg.
                   3584: 
                   3585:        * stmt.c (expand_return): Handle INIT_EXPR, or bare RESULT_DECL.
                   3586: 
                   3587:        * stmt.c (case_stack): Add field `has_default' to each element.
                   3588:        (pushcase,expand_end_case): Maintain and use that field.
                   3589: 
                   3590:        * stmt.c (pushcase): Handle RANGE_EXPR cases.
                   3591:        (pushcase_range): Create RANGE_EXPR cases.
                   3592: 
                   3593:        * final.c (final): Always pass 3 args to ASM_OUTPUT_CASE_END.
                   3594:        * tm-3b1.h: Delete offending spaces.
                   3595: 
                   3596: Fri Aug  5 16:17:16 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3597: 
                   3598:        * integrate.c (copy_rtx_and_substitute): Don't make fp+reg+const
                   3599:        without an intermediate temporary reg.
                   3600: 
                   3601:        * print-tree.c (dump): Don't print an identifier's chain.
                   3602: 
                   3603:        * toplev.c (compile_file): Treat `.i' suffix like `.co'.
                   3604: 
                   3605:        * gcc.c: New config macro CC1_SPEC: extra switches for cc1.
                   3606:        Make a new spec for `.i' files.
                   3607: 
                   3608:        * c-decl.c (pushdecl, finish_decl): Delete duplicate tests.
                   3609: 
                   3610:        * varargs.h: Maybe include va-sparc.h or va-spur.h.
                   3611:        * va-sparc.h: New file.
                   3612:        * va-spur.h: renamed file.
                   3613: 
                   3614:        * tree.h ({TYPE,DECL}_LANG_SPECIFIC): Types and decls can point to
                   3615:        language-specific structures containing other info.
                   3616:        * print-tree.c (dump): Hooks for printing the language-specific
                   3617:        data in types and decls.
                   3618: 
                   3619: Thu Aug  4 08:54:30 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3620: 
                   3621:        * tree.def: Add some tree codes for C++.
                   3622: 
                   3623:        * Rename files: parse.[yh] -> c-parse.[yh], decl.c -> c-decl.c,
                   3624:        typecheck.c -> c-typeck.c.
                   3625:        Part of tree.c split out to c-convert.c.
                   3626: 
                   3627:        * expr.c (push_block): No longer static.
                   3628:        (expand_expr): Handle REFERENCE_EXPR and INIT_EXPR.
                   3629:        (expand_call): Turn a METHOD_TYPE to a FUNCTION_TYPE.
                   3630:        This is probably not all that is required.
                   3631: 
                   3632:        * parse.y (yylex): Use p->rid to check for `signed' and `inline'.
                   3633: 
                   3634:        * tm-sparc.h (ASM_OUTPUT_SOURCE_LINE): typo.
                   3635: 
                   3636:        * sparc.md: Add a pattern for andcc.
                   3637:        (cmpsf): Clobber reg 32 in DFmode.
                   3638:        (branches): There are no unsigned floating branches; abort.
                   3639:        (bgt): Correct name of floating variant.
                   3640:        (mov?i): Load small constants via mov.
                   3641:        (movdf for constants): Use mov, not add, to move regs.
                   3642:        (movsf, floatsi*, fix*): Simplify reg-to-reg-via-mem move generation.
                   3643:        (trunc*): Use mov, not or, to move regs.
                   3644:        (negsi2, one_cmplsi2): Avoid "neg" and "not" assembler syntax.
                   3645:        (call...): Generate "call" insns; handle #-reg-parms value.
                   3646:        * Define some peepholes for return insns.
                   3647: 
                   3648:        * tm-sparc.h (TARGET_SUN_ASM): New target flag.
                   3649:        (TARGET_DEFAULT): Now 1.
                   3650:        (FRAME_POINTER_REQUIRED): Now 1.
                   3651:        (STARTING_FRAME_OFFSET): Now -16.
                   3652:        (LEGITIMATE_CONSTANT_P): Only CONST_DOUBLEs fail.
                   3653:        (FUNCTION_{PROLOGUE,EPILOGUE}): Rewritten.
                   3654: 
                   3655:        * output-sparc.c (small_int): Test for int that mov can load.
                   3656:        (singlemove_string): Use mov, not add.
                   3657:        (output_move_double): Changes for overlap and for use of ldd, std.
                   3658:        (output_fp_move_double): Use ldd, std when safe.
                   3659:        (make_f0_contain_0): Simplify.
                   3660: 
                   3661:        * integrate.c (expand_inline_function): Some special CALL_INSN
                   3662:        handling no longer needed due to REG_FUNCTION_VALUE_P.
                   3663: 
                   3664:        * m68k.md (movqi): Constraints allow moving areg to areg.
                   3665: 
1.1.1.5   root     3666: Wed Aug  3 08:29:31 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3667: 
1.1.1.6   root     3668:        * Version 1.25 released.
                   3669: 
1.1.1.5   root     3670:        * integrate.c (expand_inline_function): Don't let MEM be inline_target.
                   3671: 
                   3672: Tue Aug  2 09:13:37 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3673: 
                   3674:        * integrate.c (INTEGRATE_THRESHOLD): New macro, default dfn here.
                   3675:        (function_cannot_inline_p): Use it.
                   3676: 
                   3677:        * rtl.h (REG_FUNCTION_VALUE_P): New macro.
                   3678:        * stmt.c (expand_function_start): Set that flag in the return reg.
                   3679:        * integrate.c (expand_inline_function, copy_rtx_and_substitute):
                   3680:        Test that flag to test for the return value.
                   3681:        * expmed.c (expand_fixed_bit_field, expand_mult, expand_divmod): ditto.
                   3682:        FUNCTION_VALUE_OUTGOING_REGNO_P no longer needed.
                   3683: 
                   3684: Mon Aug  1 02:46:08 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3685: 
                   3686:        * integrate.c (copy_rtx_and_substitute): If NO_FUNCTION_CSE,
                   3687:        don't break out constant fcn addresses here.
                   3688: 
                   3689:        * expmed.c (expand_fixed_bit_field): Tests of FUNCTION_VALUE_REGNO_P
                   3690:        were backwards.
                   3691: 
                   3692: Sun Jul 31 13:10:07 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   3693: 
                   3694:        * recog.c (indirect_operand): New function.
                   3695: 
                   3696:        * output-i386.c (print_operand): define %*. eliminate %s.
                   3697:        (fp_top_dead_p): In nonopt case, skip stack-adjusts while looking
                   3698:        for the insn that uses the function value.
                   3699: 
                   3700:        * varasm.c (text_section, data_section): New functions.
                   3701:        Replaced explicit printfs elsewhere with calls to them.
                   3702:        * final.c (final_start_function): Use these fns.
                   3703:        * sdbout.c (sdbout_one_type): Use text_section.
                   3704:        * tm-att386.h (ASM_OUTPUT_LOCAL): Use data_section.
                   3705: 
                   3706:        * expr.c (prepare_call_address): Don't pass const via reg if no -O.
                   3707: 
                   3708:        * tm-sparc.h (FUNCTION_{PROLOGUE,EPILOGUE}) Round the size of saved
                   3709:        registers.  Fix bug counting saved registers.
                   3710: 
                   3711:        * tm-sparc.h (ASM_OUTPUT_SOURCE_LINE): Define this macro.
                   3712: 
                   3713:        * tm-sparc.h (DEFAULT_SIGNED_CHAR): Now 1.
                   3714: 
                   3715:        * expr.c (expand_builtin, alloca case): Adding stack offset needs
                   3716:        special code if TARGET is a MEM.
                   3717: 
                   3718:        * dbxout.c (dbxout_init): Define Ltext: after the reference to it.
                   3719: 
                   3720:        * tm-3b1.h (ASM_OUTPUT_CASE_LABEL): `short 0' triggers assembler bug;
                   3721:        `short L%nn-L%nn' supposedly works.
                   3722: 
                   3723: Sat Jul 30 00:25:52 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3724: 
                   3725:        * sparc.md (floatsidf2): Minor change in output.
                   3726:        (fix_trunc{sf,df}si2): Similar.
                   3727: 
                   3728:        * output-sparc.c (output_fp_move_double): Minor change in output.
                   3729: 
                   3730:        * stmt.c (assign_parms): Don't count stack space for struct value
                   3731:        address if the function does not have one.
                   3732: 
                   3733:        * sdbout.c: Output .dim's and total size for arrays.
                   3734:        Detect bit-fields properly.
                   3735:        Changed handling of structure tags.
                   3736: 
                   3737:        * reload1.c (new_spill_reg): counted_for_nongroups is a new arg;
                   3738:        store 1 in it if this reg is needed for max_nongroups.
                   3739: 
                   3740:        * reload1.c (choose_reload_targets): Allow inheritance of DFmode
                   3741:        if it needs only one register.
                   3742: 
                   3743:        * reload1.c (choose_reload_targets): Delete the death-note from the
                   3744:        store-insn of an inherited reload if PRESERVE_DEATH_INFO_REGNO_P.
                   3745: 
                   3746:        * reload.c (push_reload): Crash if PREFERRED_RELOAD_CLASS is NO_REGS.
                   3747:        (find_reloads): Smarter handling of forcing CONST_DOUBLE into mem.
                   3748:        Check PREFERRED_RELOAD_CLASS & do this if it says NO_REGS.
                   3749: 
                   3750:        * reload.c (subst_indexed_address): Handle case with 2 regs
                   3751:        and no constant term.
                   3752: 
                   3753:        * local-alloc.c: New variable qty_n_refs, set from reg_n_refs
                   3754:        and tested in qty_compare{,_1}.
                   3755:        (combine_regs): Update qty_n_refs.
                   3756:        Update qty_preferred_or_nothing more intelligently.
                   3757: 
                   3758:        * regclass.c (regclass, reg_class_record, record_address_regs):
                   3759:        Count the number of refs to each reg along with the costs,
                   3760:        and use it when computing the preferred_or_nothing flag.
                   3761:        (Can't use reg_n_refs since that is weighted by loop depth).
                   3762: 
                   3763:        * global-alloc.c (global_alloc): Enable test of OVERLAPPING_REGNO_P
                   3764:        for setting no_global_alloc_regs.
                   3765: 
                   3766:        * expr.c (prepare_call_address): Use force_reg, so it gets a REG_EQUIV.
                   3767: 
                   3768:        * optabs.c (can_{fix,float}_p): Return enum insn_code, not a function.
                   3769:        (init_{fix,float}_tab): Store enum insn_code's in fixtab and floattab.
                   3770:        (expand_{fix,float}): Change calls to can_{fix,float}_p.
                   3771:        Also, use emit_unop_insn to make the actual insns.
                   3772: 
                   3773: Fri Jul 29 02:42:40 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3774: 
                   3775:        * cccp.c (initialize_char_syntax): If dollars_in_identifiers is 0,
                   3776:        set entries for `$' to 0.
                   3777:        Set entries to 1 rather than incrementing them.
                   3778: 
                   3779: Tue Jul 26 11:14:22 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3780: 
                   3781:        * varasm.c (assemble_variable): Make SDB output only if top-level.
                   3782: 
                   3783:        * local-alloc.c (reg_is_set): Arg to mark_life is regno, not qty.
                   3784: 
                   3785:        * output-ns32k.c (print_operand_address): New flag SEQUENT_BASE_REGS
                   3786:        * tm-sequent.h: Define that flag.
                   3787: 
                   3788:        * Makefile: add some missing deps.
                   3789: 
                   3790:        * tm-encore.h (ASM_FILE_START): Changed to do nothing.
                   3791: 
                   3792:        * sdbout.c (sdbout_init): Fix two dumb errors.
                   3793: 
                   3794:        * sdbout.c (sdbout_end_epilogue): No longer takes arg.
                   3795:        Examine current_function_decl here, not in caller.
                   3796:        * final.c: Call changed.
                   3797: 
                   3798: Mon Jul 25 01:32:54 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3799: 
                   3800:        * stor-layout.c (layout_record): Handle PCC_BITFIELD_TYPE_MATTERS.
                   3801: 
                   3802:        * tm-3b1.h (__PTR_TO_INT, __INT_TO_PTR): Define these, to alter
                   3803:        parts of obstack.h.
                   3804: 
                   3805: Sun Jul 24 17:56:53 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3806: 
                   3807:        * Padding for an arg may now go below or above it; new macro
                   3808:        FUNCTION_ARG_PADDING can now choose which, or can inhibit padding.
                   3809:        This makes for compatibility with PCC.
                   3810:        * expr.h: Default definition of that macro.
                   3811:        * expr.c (emit_push_insn): Put the padding above or below.
                   3812:        (expand_call): Don't count the padding if none wanted.
                   3813:        * stmt.c (assign_parms): Adjust parm stack addr if padded below.
                   3814:        Don't count the padding if none wanted.
                   3815:        * tm-3b1.h: Define FUNCTION_ARG_PADDING: no padding for > 4 bytes.
                   3816: 
                   3817:        * final.c (alter_subreg): Now returns the altered value
                   3818:        (but may still modify the original structure).
                   3819:        Handles (SUBREG:DI (CONST_DOUBLE:DF...)) by returning the CONST_DOUBLE.
                   3820: 
                   3821:        * m68k.md (DImode push): now allows `F'.
                   3822:        * ns32k.md (movdi): now allows `F'.
                   3823: 
                   3824:        * tm-m68k.h (FIX_FRAME_POINTER_ADDRESS):
                   3825:        Handle indexed references to frame pointer.
                   3826:        * tm-i386.h, tm-m88k.h, tm-sparc.h: Likewise.
                   3827: 
                   3828:        * cse.c (predecide_loop_entry): Must search for the loop top label.
                   3829: 
                   3830: Sat Jul 23 08:53:01 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   3831: 
                   3832:        * parse.y (yylex): typo in wide strings.
                   3833: 
                   3834:        * tm-vaxv.h, config-vaxv.h: New files for sysV on vax.
                   3835: 
                   3836:        * config-sun4.h: If sparc and not compiling with GCC, include alloca.h.
                   3837: 
                   3838: Fri Jul 22 02:38:02 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   3839: 
                   3840:        * tree.c (build_real_from_int_cst): CHECK_FLOAT_VALUE at proper place.
                   3841: 
                   3842:        * tm-hp9k320.h ({TEXT,DATA}_SECTION_ASM_OP): Should not include a tab.
                   3843:        * final.c (final_start_function): Don't output a tab before those.
                   3844: 
                   3845:        * sdbout.c (PUT_SDB_EPILOGUE_END): New macro.
                   3846:        * sdbout.c (sdbout_end_epilogue): New function to output the C_EFCN.
                   3847:        Like former sdbout_mark_end_function.  Uses that macro.
                   3848:        * final.c (final_end_function): Call that function.
                   3849:        * tm-3b1.h: Override PUT_SDB_EPILOGUE_END like the other PUT_SDB...
                   3850: 
                   3851:        * tm-3b1.h (PRINT_OPERAND_ADDRESS, ASM_OUTPUT_INTERNAL_LABEL,
                   3852:        ASM_OUTPUT_CASE_{LABEL,END}): Put a % in names of internal labels.
                   3853:        (ASM_GENERATE_INTERNAL_LABEL, ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT):
                   3854:        New macros, for same reason.
                   3855:        (FUNCTION_PROFILER): New macro, for % and also to put addr in a0.
                   3856: 
                   3857:        * final.c (output_source_line): For fcn's first line, use lineno 1.
                   3858:        * sdbout.c (sdbout_end_function): Clear sdb_begin_function_line
                   3859:        so can recognize first line of next function.
                   3860: 
                   3861:        * sdbout.c (sdbout_init): Output the .file pseudo here.
                   3862:        * tm-3b1.h, tm-att386.h (ASM_FILE_START): Don't do it here.
                   3863: 
                   3864:        * sdbout.c (PUT_SDB_VAL): Output leading tab, like the other macros.
                   3865:        * tm-3b1.h (PUT_SDB_VAL): Likewise.
                   3866: 
                   3867:        * regclass.c (regclass): Cast enums to int, not char.
                   3868:        * varasm.c (record_constant): Likewise.  Avoids 3b1 PCC bug.
                   3869: 
                   3870:        * decl.c (pushdecl): Better choice of error message for extern/static.
                   3871: 
                   3872:        * emit-rtl.c: Do look for STRUCT_VALUE_INCOMING_REGNUM.
                   3873: 
                   3874: Thu Jul 21 02:13:03 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3875: 
                   3876:        * cse.c (canon_hash): CONST_INT case failed to add to prev. value
                   3877:        of HASH; was inconsistent with cse_insn mem address hashing.
                   3878: 
                   3879:        * m68k.md (divide insns): Alternate 3B1 syntax for `swap' insn.
                   3880: 
                   3881: Wed Jul 20 18:27:10 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3882: 
                   3883:        * m68k.md: In shift-by-24 patterns, rejects autoincrement memrefs
                   3884:        since they are mode-dependent.
                   3885: 
                   3886: Tue Jul 19 13:01:38 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3887: 
                   3888:        * parse.y (check_newline): Handle #ident by writing .ident to output.
                   3889:        * cccp.c: Don't handle #ident; delete IDENT_DIRECTIVE conditionals.
                   3890: 
                   3891:        * stmt.c (expand_end_case): In compares, put constant arg second.
                   3892: 
                   3893:        * jump.c (jump_optimize): Delete conditional jump if followed by
                   3894:        an unconditional jump to the same place.
                   3895: 
                   3896: Mon Jul 18 17:49:13 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3897: 
                   3898:        * emit-rtl.c (init_emit_once): Now STRUCT_VALUE_INCOMING is an
                   3899:        expression for an rtx.  It can make a MEM.  Likewise STRUCT_VALUE
                   3900:        for outgoing structure value addresses.
                   3901: 
                   3902:        * stmt.c (assign_parms): If incoming struct addr on stack, leave room.
                   3903:        * expr.c (expand_call): If outgoing addr on stack, push it like an arg.
                   3904: 
                   3905:        * PROMOTE_PROTOTYPES means if proto says `char', pass `int'.
                   3906:        * decl.c (get_parm_info): Alter DECL_ARG_TYPE to do this.
                   3907:        * typecheck.c (actualparameterlist): Convert value for this.
                   3908:        * tm-m68k.h: Define PROMOTE_PROTOTYPES.
                   3909: 
                   3910: Sun Jul 17 14:25:47 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3911: 
                   3912:        * jump.c (jump_optimize): peephole can delete insns following INSN.
                   3913:        Set NEXT after peephole.
                   3914: 
                   3915:        * decl.c (finish_decl): Always restart perm alloc if global.
                   3916: 
                   3917:        * stmt.c (assign_parms): When a float is passed as double, store the
                   3918:        float in low-numbered word.  Avoids trouble with parm_map in integrate.
                   3919: 
                   3920:        * vax.md: New pattern for decrement and compare against -1.
                   3921: 
                   3922: Sat Jul 16 14:18:00 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3923: 
                   3924:        * decl.c (pushdecl): Ignore previous decl if it's really an error_mark.
                   3925: 
                   3926:        * stmt.c (expand_start_case): Make sure case_stmt.start is a NOTE.
                   3927: 
                   3928:        * combine.c (subst): In the simplification for
                   3929:        (set (zero_extract ...) (and/or/xor (zero_extract ...) const)),
                   3930:        require same memory location in both extracts.
                   3931: 
                   3932:        * *386*: New files.
                   3933: 
                   3934:        * cse.c (fold_rtx): Save time in memory address if it didn't change.
                   3935:        Don't replace cheaper expression with coslier one.
                   3936:        (cse_insn): Reenable generation of REG_WAS_0.  It wasn't obsolete.
                   3937: 
                   3938:        * cccp.c: `ident' has 5 letters.
                   3939: 
                   3940:        * final.c (output_source_line): SDB can't handle multiple source
                   3941:        files, so ignore line-NOTEs for other files.
                   3942: 
                   3943:        * hard-reg-set.h: New var reg_class_size (# regs in the class).
                   3944:        * regclass.c (init_reg_class): Set it up.
                   3945: 
                   3946:        * reload.c (find_reloads): If an earlyclobber is in a class of size 1
                   3947:        as an output, reload it as input instead of as output.
                   3948: 
                   3949:        * reload1.c (choose_reload_targets): Improve elimimation of spilled
                   3950:        pseudos made dead by reloading: if pseudo is limited to one block
                   3951:        and that block contains just stores, delete all the stores.
                   3952: 
                   3953:        * reload1.c (choose_reload_targets): reg_has_output_reload is now
                   3954:        static and survives through reload pass.
                   3955:        (forget_old_reloads): Don't cancel data on spilled regs of output
                   3956:        reloads of the insn just made.
                   3957: 
                   3958:        * sdbout.c (sdbout_one_type): Go to .text before defining a type.
                   3959:        (sdbout_block): Test against do_block was backwards.
                   3960: 
                   3961:        * stmt.c (expand_end_function): New args to make a NOTE for last line.
                   3962:        * decl.c (finish_function): Pass the args.
                   3963: 
                   3964:        * rtl.c (no_labels_between): New function.
                   3965:        * vax.md (movsi): Call it.
                   3966: 
                   3967:        * print-tree.c (dump): Don't follow chain of a decl.
                   3968: 
                   3969:        * rtl.c (volatile_refs_p): Moved from flow.c.
                   3970: 
                   3971: Fri Jul 15 13:36:20 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   3972: 
                   3973:        * sdbout.c (PUT_SDB...): Allow config to override any of them.
                   3974:        * sdbout.c (PUT_SDB_{BLOCK,FUNCTION}_{START,END}): New macros.
                   3975:        * tm-3b1.h: Override all of them.
                   3976:        * sdbout.c (SDB_GENERATE_FAKE): New macro to create dummy tag name.
                   3977:        (gen_fake_label): Use SDB_GENERATE_FAKE.
                   3978:        * tm-3b1.h: Override its defn.
                   3979: 
                   3980:        * sdbout.c (sdbout_mark_function_end): Unused; deleted.
                   3981: 
                   3982:        * tm-3b1.h: Define SDB_DEBUGGING_INFO.
                   3983: 
                   3984: Thu Jul 14 01:55:15 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   3985: 
                   3986:        * config-sunv4.h: New file for Sunos version 4.
                   3987: 
                   3988:        * tm-sun3.h (CPP_SPEC): Define mc68010 or mc68020, depending.
                   3989: 
                   3990: Tue Jul 12 15:31:30 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3991: 
                   3992:        * stmt.c (expand_fixup, expand_goto_internal): New functions to
                   3993:        emit a jump that can restore the stack level, even without tree node.
                   3994:        (expand_null_return, expand_exit_loop, etc.): Use expand_goto_internal.
                   3995:        (expand_end_function): Do fixup_gotos after emitting return_label.
                   3996: 
                   3997:        * cse.c (predecide_loop_entry): Avoid using JUMP_LABEL.
                   3998:        * flow.c (find_basic_blocks): Avoid using JUMP_LABEL.
                   3999: 
                   4000:        * flow.c (insn_dead_p): Delete special case for stack-adjust insns.
                   4001:        (life_analysis): Mark those insns with INSN_VOLATILE here.
                   4002:        (mark_used_regs): a SET of a hard reg, in a volatile insn,
                   4003:        always makes its source live.
                   4004: 
                   4005: Mon Jul 11 10:46:26 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4006: 
                   4007:        * ns32k.md (floatqidf2): Commented out since assemblers warn about it.
                   4008: 
                   4009: Sun Jul 10 11:49:23 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4010: 
                   4011:        * decl.c (xref_tag): Default the TYPE_MODE of enum xrefs
                   4012:        to avoid making MEM and REG with VOIDmode.
                   4013: 
                   4014:        * vax.md (call): If > 255 args, pop them explicitly.
                   4015: 
                   4016: Sat Jul  9 10:53:47 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4017: 
                   4018:        * symout.c (symout_types): Fix up forward refs to previously
                   4019:        undefined structure types.
                   4020:        (filter_undefined_types): New function.
                   4021:        (symout_finish, symout_function_end): Output any never-defined structs.
                   4022:        * toplev.c (rest_of_compilation): call symout_function_end.
                   4023: 
                   4024:        * parse.y: Don't declare errno if it's a macro.
                   4025: 
                   4026:        * tm-hp9k320 (FUNCTION_PROFILER): Pass ptr in a0, not d0.
                   4027: 
                   4028:        * typecheck.c (truthvalue_conversion): Flush unnec recursive call.
                   4029:        (build_cond_expr): Bug testing zeroness of IFEXP with TREE_LITERAL.
                   4030: 
                   4031:        * cse.c (fold_cc0): Constants not CONST_INT are certainly nonzero.
                   4032:        * fold-const.c (fold): ADDR_EXPR is not equal to zero.
                   4033: 
                   4034:        * cccp.c (macroexpand): Disable the macro even if traditional.
                   4035:        (rescan): Error if use a disabled macro.
                   4036: 
                   4037:        * combine.c (try_combine): Don't substitute a different reg into
                   4038:        an auto-increment.  Handle multiple REG_INC notes in I1 or I2.
                   4039: 
                   4040:        * decl.c (implicitly_declare): Don't reuse old implicit decl.
                   4041: 
                   4042:        * varasm.c (assemble_variable): Avoid syntax err if no DBX and no SDB.
                   4043:        * final.c (output_source_line): likewise.
                   4044: 
                   4045:        * fold-const.c (fold): PLUS/MINUS_EXPR: in case of cancellation,
                   4046:        convert result to original type.
                   4047: 
                   4048:        * regclass.c (reg_class_record): Changed arguments include address
                   4049:        of entire vector of constraints.
                   4050: 
                   4051: Fri Jul  8 07:59:00 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4052: 
                   4053:        * reload1.c (reload): Find groups of more than 2 registers.
                   4054: 
                   4055: Thu Jul  7 08:33:07 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4056: 
                   4057:        * expr.c (emit_push_insn): Typo adjusting arg for bcopy
                   4058:        if not STACK_GROWS_DOWNWARD.
                   4059: 
                   4060:        * gnulib.c (_cmpsf2): Value is int, not SFVALUE.
                   4061: 
                   4062: Wed Jul  6 11:53:46 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4063: 
                   4064:        * tm-encore.h, tm-3b1.h: Replace ASM_FILE_START; output a .file.
                   4065: 
                   4066:        * *m88*: New files for Motorola 88000.  They don't really work.
                   4067: 
                   4068: Tue Jul  5 14:40:03 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4069: 
                   4070:        * local-alloc.c (combine_regs): Don't tie a reg to itself.
                   4071: 
                   4072:        * finxincludes: Make a variable LIB for the target dir.
                   4073: 
                   4074:        * m68k.md (movhi, addhi3, addsi3): Micro-optimize choice of asm insns.
                   4075: 
                   4076:        * expr.c (expand_expr): Use new macros NO_DEFER_POP, OK_DEFER_POP
                   4077:        in several places, to keep stack predictable.
                   4078: 
                   4079: Mon Jul  4 09:50:18 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4080: 
                   4081:        * integrate.c (function_cannot_inline_p): Increase threshold size.
                   4082: 
                   4083:        * flags.h (use_gdb_dbx_extensions): New variable.
                   4084:        * toplev.c:
                   4085: 
                   4086:        * sdbout.c (PUT_SDB_TAG): Delete duplicate defn.
                   4087: 
                   4088:        * expr.c (expand_expr): For FIX_TRUNC_EXPR to unsigned short/char,
                   4089:        REALLY go via signed int.
                   4090: 
                   4091:        * loop.c (may_trap_p): Was detecting floating arithmetic incorrectly.
                   4092: 
                   4093:        * tm-news800.h (CPP_PREDEFINES): Add sony and sony_news.
                   4094: 
                   4095:        * parse.y (check_newline): Avoid infinite loop at eof.
                   4096: 
1.1.1.4   root     4097: Sat Jul  2 10:35:17 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4098: 
                   4099:        * Version 1.24 released.
                   4100: 
                   4101:        * stmt.c (expand_asm_operands): Produce proper no-outputs insn.
                   4102:        * recog.c (asm_noperands): Detect no-outputs insns.
                   4103:        (decode_asm_operands): Likewise.
                   4104:        * reload.c (find_reloads): Likewise (add case ASM_OPERANDS:).
                   4105: 
                   4106:        * local-alloc.c (block_alloc): Tests of qty_compare were backwards.
                   4107: 
                   4108:        * flow.c (life_analysis): Turn off code that finds regs live at
                   4109:        function start and marks them not local to any basic block.
                   4110: 
                   4111:        * cse.c (insert_regs): Fix typo (UNITS_PER_WORD).
                   4112: 
                   4113:        * cccp.c: Define max.
                   4114: 
                   4115:        * expr.c (expand_expr): Put each SAVE_EXPR's reg on save_expr_regs,
                   4116:        if not optimizing.
                   4117:        * stmt.c (expand_function_end): Mark each of those regs live
                   4118:        at the end and also retroactively at the beginning of the function.
                   4119: 
                   4120:        * output-vax.c (print_operand_address): New function from old macro.
                   4121:        * tm-vax.h (PRINT_OPERAND_ADDRESS): Call that function.
                   4122: 
                   4123:        * config-vms.h: If not under GNU C, define X_OK, etc.
                   4124: 
                   4125:        * expr.c (move_by_pieces_1): Use * to call GENFUN.
                   4126:        (expand_expr): Compare DECL_FUNCTION_CODE against an enum const.
                   4127:        (preexpand_calls): Likewise.
                   4128:        * genrecog.c (write_tree): Likewise.
                   4129:        * final.c (final): Use * to call the output function.
                   4130:        * reload.c (push_reload): Rename `noshare' to `dont_share'.
                   4131: 
                   4132:        * genoutput.c (output_epilogue): Put more newlines in insn_outfun.
                   4133:        * genemit (gen_exp): Put in more newlines.
                   4134: 
                   4135: Fri Jul  1 00:23:57 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4136: 
                   4137:        * global-alloc.c (allocno_compare): Avoid comparisons of floats
                   4138:        since that is sensitive to roundoff errors.
                   4139: 
                   4140: Thu Jun 30 09:25:40 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4141: 
                   4142:        * sdbout.c (PUT_SDB_{DEF,TAG}): Use ASM_OUTPUT_LABELREF.
                   4143:        (PUT_SDB_PLAIN_DEF): New name for old defn of PUT_SDB_DEF
                   4144:        (sdbout_one_type): Use PUT_SDB_PLAIN_DEF for `.eos'.
                   4145: 
                   4146:        * tree.c (allocation_temporary_p): New fcn.
                   4147:        (all_types_permanent): New variable.
                   4148:        (make_node): If that's set, make each ...TYPE node permanent.
                   4149:        * decl.c (grokdeclarator): If traditional, make decl data permanent.
                   4150:        (finish_decl): Make the rtl permanent too.
                   4151:        * stor-layout.c (layout_type): If type is permanent,
                   4152:        make its layout data permanent too.
                   4153: 
                   4154:        * cccp.c: Choose C++ or C at run time via var `cplusplus'.
                   4155:        Separate cplusplus_include_default from include_default.
                   4156:        Get GNU-specific include directory names from macros
                   4157:        GCC_INCLUDE_DIR and GPLUSPLUS_INCLUDE_DIR.
                   4158:        (main): Initialize based on CPLUSPLUS; `-+' sets it.
                   4159:        * Makefile: Set *_INCLUDE_DIR based on $(libdir).
                   4160: 
                   4161: Tue Jun 28 09:25:49 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4162: 
                   4163:        * tree.c (copy_node): Round LENGTH up to multiple of sizeof (int).
                   4164: 
                   4165:        * expr.c (emit_push_insn): Avoid using PUSH_ROUNDING if not defined.
                   4166: 
                   4167:        * sparc.md (floatsisf2): Insert missing brace.
                   4168:        (mulsi3): Replace reg_o0_rtx, reg_o1_rtx.
                   4169: 
                   4170:        * tm-sparc.h: Define DBX_DEBUGGING_INFO.
                   4171: 
                   4172:        * parse.y (yylex): If traditional, no error for out-of-range float.
                   4173: 
                   4174:        * Makefile: Comment saying how to compile on an Apollo.
                   4175: 
                   4176:        * tm-sparc.h (ASM_FILE_START): Switch to new calling convention.
                   4177: 
                   4178:        * decl.c (init_decl_processing): Create type nodes for 64-bit ints.
                   4179:        (grokdeclarator): use them for `long long'.  Warn only if pedantic.
                   4180: 
                   4181:        * optabs.c (init_optabs): Add missing DImode insn names.
                   4182: 
                   4183:        * expr.c (emit_block_move, emit_push_insn): Use movstrqi if appro.
                   4184: 
                   4185:        * expr.c (convert_move): use extendsidi if appropriate.
                   4186: 
                   4187:        * cccp.c (initialize_builtins): Don't install __STDC__ if traditional.
                   4188:        (main): Call initialize_builtins after option processing.
                   4189: 
                   4190:        * integrate.c (output_inline_function): Set current_function_decl.
                   4191: 
                   4192:        * cse.c (fold_rtx): Typo in avoiding 32-bit shifts.
                   4193: 
                   4194:        * cccp.c: Add forward-decl.
                   4195: 
1.1.1.3   root     4196: Mon Jun 27 18:06:42 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4197: 
                   4198:        * hard-reg-set.h (reg_alloc_order): New variable
                   4199:        based on REG_ALLOC_ORDER, a new machine-description macro.
                   4200:        * regclass.c (reg_alloc_order): Define it.
                   4201:        * local-alloc.c (find_free_reg): Handle reg_alloc_order.
                   4202:        * global-alloc.c (find_reg): Likewise.
                   4203:        * stupid.c (stupid_find_reg): Likewise.
                   4204: 
                   4205: Sun Jun 26 10:47:47 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4206: 
                   4207:        * Version 1.23 released.
                   4208: 
                   4209:        * tm-3b1.h: Define IDENT_DIRECTIVE.
                   4210: 
                   4211:        * tm-encore.h: Define SDB_DEBUGGING_INFO.
                   4212:        Define SCCS_DIRECTIVE and IDENT_DIRECTIVE.
                   4213: 
                   4214:        * output-ns32k.c: Decl of paren_base_reg_printed must be outside fcns.
                   4215: 
                   4216:        * tm-encore.h (ASM_OUTPUT_DOUBLE): Do 0f, not 0l.
                   4217:        (CPP_PREDEFINES): No -Dns32032.
                   4218: 
                   4219:        * sdbout.c: Include syms.h, not storclass.h.
                   4220:        (unnamed_struct_member): Decl was missing.
                   4221:        (PUT_SDB_INT_VAL, PUT_SDB_VAL): Fix typos.
                   4222:        (sdbout_types, sdbout_one_type, sdbout_parms): Fix typos.
                   4223: 
                   4224:        * Makefile: Add file sdbout.o.
                   4225:        Changed comments pertaining to sysV.
                   4226:        Make a separate target `doc' to make the info files.
                   4227: 
                   4228:        * m68k.md (bit-field insns): Use nonimmediate_operand for the thing
                   4229:        to extract from.
                   4230:        * vax.md (QImode bit-field insns): Likewise.
                   4231: 
                   4232:        * recog.c (nonimmediate_operand): Accept any nonconst general operand.
                   4233: 
                   4234: Sat Jun 25 07:54:42 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4235: 
                   4236:        * cse.c (lookup_as_function): arg to exp_equiv_p was missing.
                   4237: 
                   4238: Fri Jun 24 09:14:47 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4239: 
                   4240:        * recog.c (memory_operand): Allow (subreg (mem...)).
                   4241: 
                   4242: Thu Jun 23 07:34:07 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4243: 
                   4244:        * decl.c (finish_enum): Compute minimum value like maximum.
                   4245:        If minimum is negative, install it in the type and make it signed.
                   4246: 
                   4247:        * stor-layout.c (layout_record): STRUCTURE_SIZE_BOUNDARY is minimum.
                   4248:        (layout_type): A RECORD_TYPE or UNION_TYPE must be BLKmode if
                   4249:        any member is BLKmode.  This is to prevent putting it in a register.
                   4250:        (layout_decl): If decl's type is BLKmode, the decl *must* be BLKmode.
                   4251: 
                   4252:        * local-alloc.c (find_free_reg): Never allocate the frame pointer reg.
                   4253: 
                   4254:        * tm-sequent.h (PRINT_OPERAND): Bug in SFmode CONST_DOUBLE.
                   4255:        * tm-encore.h: Likewise.
                   4256: 
                   4257:        * flow.c (flow_analysis): Bug in n_basic_blocks error check.
                   4258: 
                   4259:        * stmt.c (expand_asm_operands): Emit no insn if an arg is erroneous.
                   4260: 
                   4261: Tue Jun 21 08:34:24 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4262: 
                   4263:        * reload.c (find_reloads_address): Write back *loc even if
                   4264:        subst_reg_equivs makes no change, in case subst_index_address did.
                   4265: 
                   4266:        * flow.c: Define macros for -1 and -2 as values of reg_basic_block.
                   4267:        (mark_used_regs): Add an `else'; no change in behavior.
                   4268:        (mark_label_ref): Abort if LABEL_REF doesn't contain a CODE_LABEL.
                   4269:        (find_basic_blocks): Extra error check.
                   4270: 
                   4271:        * output-ns32k.c (print_operand_address): Changes in handling of
                   4272:        register-indirect, and of indexing by sb register.
                   4273: 
                   4274: Mon Jun 20 04:55:38 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4275: 
                   4276:        * cccp.c (collect_definition): Compute needed space more accurately.
                   4277:        Abort if use more space than was allocated.
                   4278:        (rescan) [USE_C_ALLOCA]: Do alloca (0) after handle_directive.
                   4279: 
                   4280:        * genflags.c (gen_insn): Put parens around defns of HAVE_... macros.
                   4281: 
                   4282: Sun Jun 19 02:52:53 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4283: 
                   4284:        * expr.c (emit_push_insn): Consider PARM_BOUNDARY when compensating
                   4285:        for size of a pushed arg to bcopy.
                   4286: 
                   4287: Sat Jun 18 07:20:54 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4288: 
                   4289:        * New files sparc.md, tm-sparc.h, config-sparc.h, output-sparc.c.
                   4290: 
                   4291:        * final.c (final): After an ADDR_{,DIFF_}VEC, do ASM_OUTPUT_CASE_END.
                   4292:        * tm-3b1.h: Define ASM_OUTPUT_CASE_END.
                   4293:        (PRINT_OPERAND_ADDRESS): Ref the case tables via an intermediate symbol
                   4294:        `LDnnn' whose def. is output by ASM_OUTPUT_CASE_END.
                   4295:        (ASM_OUTPUT_CASE_LABEL): Add missing newline.
                   4296: 
                   4297:        * reload.c (find_equiv_reg): Reject a MEM containing an autoincrement.
                   4298: 
                   4299: Fri Jun 17 06:58:37 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   4300: 
                   4301:        * genpeep.c (main): Write `extern' in the decl for `peep_operand'.
                   4302: 
                   4303:        * flow.c (propagate_block): When a dead insn has a REG_RETVAL note,
                   4304:        call mark_set_regs anyway, so that `significant' is updated.
                   4305: 
                   4306:        * jump.c (follow_jumps): New arg IGNORE_LOOPS.  If 0, don't follow
                   4307:        the insn at the beginning of a loop that enters the loop; this avoids
                   4308:        interference with loop optimizer.
                   4309:        (jump_optimize, tension_vector_labels): Pass that arg.
                   4310: 
                   4311:        * loop.c (loop_optimize): Mention invalid multiple-entry loops in log.
                   4312: 
                   4313:        * m68k.md (extv, extzv): Fix # of alternatives mismatch in constraints.
                   4314: 
                   4315: Thu Jun 16 03:06:48 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   4316: 
                   4317:        * genrecog.c (change_state): Was mishandling printing XVECEXP indices 
                   4318:        greater than 9.
                   4319: 
                   4320:        * combine.c (subst, simplify_and_const_int): Avoid making SUBREG
                   4321:        of a non-REG.
                   4322: 
                   4323:        * expr.c (expand_expr): For FIX_TRUNC_EXPR to unsigned short/char,
                   4324:        go via signed int.
                   4325: 
                   4326:        * optabs.c (expand_fix): Copy hard_libcall_value reg only once.
                   4327: 
                   4328:        * reload1.c (order_regs_for_reload): Init all elements
                   4329:        of  potential_reload_regs to -1.
                   4330: 
                   4331:        * Prevent generation of (set (reg) (plus ... (label_ref ...))).
                   4332:        * explow.c (memory_address_noforce): Like `memory_address' but
                   4333:        never force it into a register.
                   4334:        * expr.c (do_tablejump): Use that.
                   4335:        * m68k.md (casesi): Use that.
                   4336: 
                   4337:        * rtl.h (struct rtx_def, GET_CODE, PUT_CODE): If SHORT_ENUM_BUG,
                   4338:        define the `code' field as a short.
                   4339: 
                   4340: Wed Jun 15 01:25:57 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4341: 
                   4342:        * gcc.c (CPP_SPEC): New spec set by config.h gives flags to cpp.
                   4343:        * tm-*.h for m68k: Define CPP_SPEC to define __HAVE_FPU__ on
                   4344:        appropriate conditions.
                   4345: 
                   4346:        * combine.c (subst): Simplify (not (minus x 1)) and (neg (minus x y)).
                   4347: 
                   4348: Mon Jun 13 02:22:43 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   4349: 
                   4350:        * typecheck.c (build_array_ref): Avoid duplicate errmsg if index
                   4351:        is an error-mark.
                   4352: 
                   4353: Sun Jun 12 23:04:39 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   4354: 
                   4355:        * cccp.c (handle_directive): If -traditional, quotes aren't special.
                   4356:        (rescan): Assume newline ends a string constant.
                   4357: 
                   4358:        * cccp.c, cexp.y: Make all fcns non-static; add some forward decls.
                   4359: 
                   4360:        * various: add static forward-decls for various functions.
                   4361: 
                   4362: Fri Jun 10 00:25:18 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4363: 
                   4364:        * reload1.c (choose_reload_targets): When writing back an incremented
                   4365:        value (handling reload_inc), write back to the real place, not to
                   4366:        OLDEQUIV (a register that holds the same value).
                   4367: 
                   4368:        * tm-m68k.h (LEGITIMIZE_ADDRESS): Don't give force_operand a target.
                   4369:        This can cause the use of multiple insns with same output reg,
                   4370:        which can confuse cse.
                   4371: 
                   4372:        * loop.c (consec_sets_invariant_p):
                   4373:        If invariant_p ever returns 2, we return 2.
                   4374:        New arg is # of consecutive sets to look for,
                   4375:        since this info is no longer in n_times_set at move_movables.
                   4376:        (scan_loop): If consec_sets_invariant_p returns 2, set m->cond.
                   4377:        (move_movables): check consecutive insns if m->consec && m->cond.
                   4378: 
                   4379:        * tm*.h: ASM_DECLARE_FUNCTION_NAME now takes 3rd arg,
                   4380:        the FUNCTION_DECL node.
                   4381:        * varasm.c (assemble_function): Pass this arg.
                   4382: 
                   4383:        * expr.c (expand_call, expand_builtin [alloca]):
                   4384:        If STACK_POINTER_OFFSET is defined, add it to stack pointer contents
                   4385:        before using it as address of actual data on the stack.
                   4386:        * stmt.c (expand_decl): Likewise.
                   4387: 
                   4388:        * stmt.c (assign_parms): If 1st parm named `__builtin_va_alist'
                   4389:        came in regs, pretend it came on stack.
                   4390:        Handle pretending a BLKmode var came on the stack.
                   4391:        If REG_PARM_STACK_SLOT, count stack space for each parm
                   4392:        even if the parm came in a register; and use that stack space
                   4393:        if the parm needs to be addressable or is BLKmode.
                   4394:        Rearrange to simplify conditionals.
                   4395: 
                   4396: Thu Jun  9 01:21:29 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4397: 
                   4398:        * local-alloc.c:
                   4399:        `qty_...' vectors' elements for hard-reg-numbers now aren't used.
                   4400:        `reg_qty' elements for hard-reg numbers now aren't used,
                   4401:        and the element for a pseudo is never a hard-reg number.
                   4402:        (local_alloc): No need to reset those elements.
                   4403:        No need to reset elements out of range of prev block's NEXT_QTY.
                   4404:        (reg_is_born, reg_is_set, wipe_dead_reg):
                   4405:        Divide labor in same way for hard regs and pseudos;
                   4406:        simplify using fact that locality-to-basic-block has been precomputed
                   4407:        and recorded in reg_qty; avoid refs to reg_qty[HARDREG].
                   4408:        (reg_is_born, wipe_dead_regs): Block-number arg no longer needed.
                   4409: 
                   4410:        * local-alloc.c (combine_regs): Remove old code for tying hard regs
                   4411:        to pseudos; great simplification results.
                   4412:        Use find_regno_note, not regno_dead_p.
                   4413: 
                   4414: Wed Jun  8 00:18:04 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4415: 
                   4416:        * reload.c (subst_reg_equivs): Set a flag if anything is changed.
                   4417:        (find_reloads_address): Check that flag to avoid extra work.
                   4418:        Also check early for safe reg+const address and avoid work.
                   4419: 
                   4420:        * reload.c (find_reloads): Use loops instead of bcopy.
                   4421:        Check early for insn with no real constraints, and return.
                   4422:        Also check for move from hard reg to hard reg and return.
                   4423: 
                   4424:        * cse.c (canon_reg): Rewrite for speed; use a switch.
                   4425:        (cse_insn): Don't call find_reg_note if REG_NOTES is 0.
                   4426: 
                   4427:        * cse.c (cse_insn): Store modified SET_SRC even if there's a REG_EQUIV.
                   4428:        Inhibition was needed when the SET_SRC was the only place to find the
                   4429:        equivalent value; now it is in the REG_EQUIV note.
                   4430: 
                   4431:        * stmt.c (expand_asm_operands): If NINPUTS is 0, make vec of no elts.
                   4432:        * regclass.c (reg_scan_mark_refs): Don't lose if XVEC (x,i) is 0.
                   4433: 
                   4434: Tue Jun  7 03:51:28 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4435: 
                   4436:        * stmt.c (assign_stack_local): If big-endian and MODE is narrow,
                   4437:        the bytes actually used are the least significant.
                   4438: 
                   4439:        * parse.y (skip_white_space): Accept char as arg; let caller read it.
                   4440:        (yylex): Change call.
                   4441:        (check_newline): Return 1st nonwhite char after skipping lines.
                   4442:        (skip_white_space): Change call.
                   4443:        * toplev.c (compile_file): Change call.
                   4444: 
                   4445:        * gcc.c: Pass -traditional to cc1.
                   4446: 
                   4447:        * cse.c (cse_insn): Return very early for (set (reg) (call...)).
                   4448:        Mainly to save time.
                   4449:        (cse-insn) Old code to add REG_WAS_0 note wasted time but did nothing.
                   4450: 
                   4451:        * expr.c (clear_pending_stack_adjust): Really do clear it,
                   4452:        if current fcn doesn't want to be inline.
                   4453: 
                   4454:        * cse.c (cse_insn): Speedup: instead of safe_hash, use canon_hash
                   4455:        or HASHREG.
                   4456: 
                   4457: Mon Jun  6 21:47:23 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4458: 
                   4459:        * jump.c (rtx_renumbered_equal_p): Reject ADDR_VEC fast.
                   4460: 
                   4461:        * cse.c (cse_insn): Ignore a REG_EQUIV or REG_EQUAL note if the
                   4462:        equivalent value is the same as the SET_SRC of the insn.
                   4463: 
                   4464:        * flow.c (life_analysis): Don't call volatile_refs_p for a CALL_INSN;
                   4465:        just assume value is 1.
                   4466:        (propagate_block): Don't call mark_{used,set}_regs for a stack-pop
                   4467:        since if it isn't dead it has no effect on any useful life data.
                   4468:        (mark_set_1): Return quickly if setting stack-ptr, and almost as
                   4469:        quickly if setting any hard reg.
                   4470:        (mark_used_regs): Likewise for refs.
                   4471:        Also don't scan the vector of an ADDR_VEC or ADDR_DIFF_VEC.
                   4472:        (volatile_refs_p): Likewise.
                   4473: 
                   4474:        * varasm.c (output_constant): Discard NOP_EXPR and CONVERT_EXPR
                   4475:        in integer case (they were for casting a pointer).
                   4476: 
                   4477:        * parse.y (compstmt_or_error): Parse a compstmt after ignoring error.
                   4478:        Use this for fctn body so that an error after store_parm_decls
                   4479:        won't recover to xdecls and call store_parm_decls again.
                   4480:        Typical cause was missing semi at end of last parmdecl.
                   4481: 
                   4482:        * parse.y: Add missing semicolons in actions.
                   4483:        (yylex): Don't use yylloc.
                   4484: 
                   4485: Sun Jun  5 16:14:40 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4486: 
                   4487:        * typecheck.c (build_array_ref): Check arg types here, to make
                   4488:        error message more accurate (not about "addition").
                   4489: 
                   4490: Thu Jun  2 02:41:40 1988  Richard Stallman  (rms at rice-krispies.ai.mit.edu)
                   4491: 
                   4492:        * cccp.c (collect_expansion): `#' isn't special if -traditional.
                   4493: 
                   4494:        * dbxout.c (dbxout_parms): Don't output a regparm symbol
                   4495:        unless the parm got a hard reg assigned.
                   4496: 
                   4497:        * tm-encore.h (ASM_OUTPUT_DOUBLE): Use 0f... not 0d...
                   4498: 
                   4499:        * tm-vax.h (CHECK_FLOAT_VALUE): Define this.
                   4500: 
                   4501: Wed Jun  1 17:13:00 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4502: 
                   4503:        * expr.c (expand_call): Have sequence points between args.
                   4504: 
                   4505: Tue May 31 00:27:06 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4506: 
                   4507:        * expmed.c (store_fixed_bit_field): Avoid shifting by 32.
                   4508:        * cse.c (fold_rtx):
                   4509:        * symout.c (subrange_p):  likewise.
                   4510: 
                   4511:        * local-alloc.c (block_alloc): If operands 1 and 2 commute,
                   4512:        try tying output to operand 2 if operand 1 won't do.
                   4513: 
                   4514:        * toplev.c (compile_file): Pass main_input_file to symout_init.
                   4515: 
                   4516:        * tree.c (build_real, build_real_from_int_cst):
                   4517:        Call CHECK_FLOAT_VALUE if it's defined, to report out-of-range values.
                   4518: 
                   4519:        * tree.c (build_real, build_real_from_int_cst): New 1st arg TYPE.
                   4520:        * parse.y (yylex): Pass this arg; requires parsing suffixes first.
                   4521:        * fold-const.c (fold, combine, fold_convert): Pass this arg.
                   4522:        Handling of float binops in `combine' simplified.
                   4523: 
                   4524:        * tm-encore.h (CPP_PREDEFINES): Remove -Dencore since CC lacks it.
                   4525: 
                   4526:        * final.c (output_source_line): Let ASM_OUTPUT_SOURCE_LINE
                   4527:        be used for SDB also.
                   4528: 
                   4529: Mon May 30 00:21:15 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4530: 
                   4531:        * cse.c (insert): Was inserting in wrong place in list.
                   4532:        (exp_equiv_p): Was failing to check validity when x == y.
                   4533: 
                   4534:        * tree.c (build_pointer_type): Handle saveable_obstack
                   4535:        like current_obstack.
                   4536: 
                   4537:        * decl.c (finish_decl): Error in test for zero-size array warning.
                   4538: 
                   4539:        * reload.c (find_equiv_reg): New arg MODE specifies mode in which
                   4540:        an equivalent value is needed.  Equivalence must be good in that mode.
                   4541:        In addition, notice overlap with multiword register modes.
                   4542:        Simplify, knowing that registers have already been renumbered.
                   4543:        It was invalidating memory-goals too easily; setting a reg
                   4544:        only invalidates memory-goal if its address varies.
                   4545:        * reload.c, reload1.c, jump.c: Calls pass the new argument.
                   4546: 
                   4547:        * cccp.c: For correct ANSI, must reject `$' in identifiers.
                   4548:        (dollars_in_ident): Variable says whether to allow them.
                   4549:        (rescan): Handle `$' as randomchar if that's 0.
                   4550:        (main): dollars_in_ident is set to 0 by -$, to 1 by -traditional.
                   4551:        (rescan, do_define): Delete former pedantic warnings for `$'.
                   4552:        (initialize_char_syntax, initialize_builtins): Inits split to two
                   4553:        functions; former is called after options are scanned
                   4554:        so `$' is in is_idchar conditionally.
                   4555:        * gcc.c: For -ansi, pass -$ to cccp.
                   4556:        * toplev.c, flags.h: Define dollars_in_ident.
                   4557:        * parse.y (yylex): Treat $ as punctuation unless dollars_in_ident.
                   4558:        Delete old pedantic warning about $.
                   4559:        * tm-vms.h: Define DOLLARS_IN_IDENTIFIERS as 1.
                   4560: 
                   4561:        * cccp.c (rescan): Preprocessing numbers can have signs, after `e'.
                   4562: 
                   4563:        * integrate.c (expand_inline_function): Abort, don't return failure,
                   4564:        if max_regno is too low.  I believe this can't happen.
                   4565: 
                   4566:        * typecheck.c (build_binary_op_nodefault):
                   4567:        For ordered comparisons, no pedantic warning about void *.
                   4568:        For MAX, MIN, ditto, and also don't allow pointer vs 0.
                   4569: 
                   4570:        * typecheck.c (build_unary_op): Don't allow pointer for +.
                   4571: 
                   4572:        * typecheck.c (convert_for_assignment): 
                   4573:        Add missing warning for case of unrelated pointer types.
                   4574:        Change criteria for new ANSI C draft.
                   4575: 
                   4576:        * optabs.c (expand_binop): Don't set unused target_is_not_an_operand.
                   4577: 
                   4578:        * fold-const.c (fold_convert): Don't set unused inprec, outprec.
                   4579: 
                   4580:        * emit-rtl.c, parse.y: Delete unused var.
                   4581: 
                   4582:        * stor-layout.c (add_vc_sizes): Unused function deleted.
                   4583:        * loop.c (constant_high_bytes): #if 0 this unused function.
                   4584: 
                   4585:        * gcc.c (fatal): Add missing arg to delete_temp_files.
                   4586: 
                   4587:        * cccp.c (dump_defn_1): Add missing arg to skip_quoted_string.
                   4588: 
                   4589:        * reload.c (find_reloads): If constraints don't fit in an `asm',
                   4590:        print error instead of aborting.
                   4591: 
                   4592:        * regclass.c (reg_class_record): Ignore `&' in constraint.
                   4593: 
                   4594: Sun May 29 00:20:23 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4595: 
                   4596:        * Makefile: Run ranlib only if /usr/bin/ranlib exists.
                   4597:        Add comment saying what to do on system V.
                   4598: 
                   4599:        * tree.c (suspend_momentary): Switch to the saveable_obstack
                   4600:        for the sake of inline functions.
                   4601: 
                   4602:        * flags.h (enum debugger): New enum for write_symbols.
                   4603:        * toplev.c, varasm.c, final.c: Use the enum constants where appro.
                   4604:        Add calls to sdbout paralleling the calls to dbxout;
                   4605:        put each in the appropriate conditional {SDB,DBX}_DEBUGGING_INFO.
                   4606: 
                   4607:        * toplev.c (main): Delete -noreg option; it's now the default.
                   4608:        Make -O an alias for -opt.  Rename -g to -gg.  -g is alias for -G.
                   4609:        Accept and ignore -Wtrigraphs.
                   4610:        * gcc.c: Simplify the specs.
                   4611: 
                   4612:        * toplev.c (compile_file), tm-*.h:
                   4613:        ASM_FILE_START is now a statement, not just a string to be output.
                   4614:        Output it *after* determining the real source file name.
                   4615: 
                   4616:        * fold-const.c (fold): Simplify x >= CST to x > CST-1 (CST positive).
                   4617:        To simplify this, canonicalize relationals to put constat last.
                   4618: 
                   4619:        * decl.c (duplicate_decls): Make a 2nd errmsg to show previous decl.
                   4620: 
                   4621:        * cccp.c (file_size_and_mode): Delete temporary VMS bootstrap patch.
                   4622: 
                   4623:        * tm-att386.h: New file.
                   4624: 
                   4625:        * decl.c (pushdecl): Warn if a local `extern' decl precedes
                   4626:        a file-scope `static' decl.
                   4627: 
                   4628:        * expr.c (expand_call): No warning for failure to inline.
                   4629: 
                   4630:        * expmed.c (extract_bit_field): copy operand 1 of extv or extzv
                   4631:        into register if memory isn't allowed.
                   4632: 
                   4633: Sat May 28 02:10:56 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4634: 
                   4635:        * gnulib.c, Makefile: Delete va_end.
                   4636: 
                   4637:        * final.c, symout.c: Check DBX_DEBUGGING_INFO, not NO_DBX_FORMAT.
                   4638: 
                   4639:        * genemit.c (gen_expand): Notice a CALL inside a PARALLEL.
                   4640: 
                   4641:        * regclass.c (init_reg_sets_1): Part of init_reg_set is put in this
                   4642:        new fn which is called after options are scanned.
                   4643:        Now CONDITIONAL_REGISTER_USAGE can depend on the options.
                   4644:        (fix_register): Just alter the data that init_reg_sets_1 will look at.
                   4645: 
                   4646:        * reload1.c (reload): Don't complain if two different but tieable
                   4647:        modes require groups of the same regclass (assuming same size group).
                   4648: 
                   4649:        * cccp.c: Add 3rd arg to all `open' calls.
                   4650: 
                   4651:        * parse.y (check_newline): Typo prevented ignoring whitespace.
                   4652: 
                   4653:        * cccp.c (perror_with_name): fprintf had harmful extra arg.
                   4654: 
                   4655:        * cccp.c (main, trigraph_pcp): -Wtrigraphs means warn if any trigraphs.
                   4656: 
                   4657:        * emit-rtl.c (gen_sequence): If LEN is 1, avoid looking at PATTERN
                   4658:        of something that doesn't have one.
                   4659: 
                   4660:        * reload1.c (alter_frame_pointer_addresses): frame pointer can
                   4661:        occur by itself, not just inside a PLUS.
                   4662:        (reload): Call eliminate_frame_pointer before reload_as_needed.
                   4663:        Otherwise the latter can make reload insns that copy the frame ptr
                   4664:        to a data reg, but 68k can't copy sp+const to a data reg.
                   4665: 
                   4666:        * decl.c (implicitly_declare): Always save the implicit decl
                   4667:        permanently.  Reuse an old one if it exists.
                   4668:        * tree.c (resume_temporary_allocation): Used after `end_temporary...'
                   4669:        to go back to temporary allocation.
                   4670: 
                   4671:        * stor-layout (layout_{type,decl}): Call variable_size.
                   4672:        (variable_size): Turn a size into a SAVE_EXPR and either compute
                   4673:        it right away or put it on a list to be computed later.
                   4674:        (get_pending_sizes): Return that list and clear it out.
                   4675:        * stmt.c (expand_start_function): Tell `variable_size' to compute
                   4676:        sizes right away, and compute those saved on the list.
                   4677:        (expand_end_function): Tell it to put them on a list.
                   4678: 
                   4679: Fri May 27 00:02:34 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   4680: 
                   4681:        * dbxout.c (dbxout_symbol): For local static var, use 'V', not 'v'.
                   4682: 
                   4683:        * gcc.c (main): Don't handle SIGHUP or SIGTERM if shell ignored it.
                   4684: 
                   4685:        * Makefile, gcc.c: Propagate Make var `libdir' to gcc search path.
                   4686: 
                   4687:        * expr.c (expand_expr): a PARM_DECL with no rtl can occur in size of
                   4688:        `a' in `foo (a,i) int i; struct {int x[i];} a;', so report an error.
                   4689: 
                   4690:        * flow.c (insn_dead_p): insn that makes stack bigger is never dead.
                   4691:        * combine.c (try_combine): Don't splice out stores into stack ptr.
                   4692: 
                   4693:        * reload.c (find_equiv_reg): Test given regno for OVERLAPPING_REGNO_P.
                   4694: 
                   4695:        * varasm.c (assemble_variable): Use saveable_obstack for allocation.
                   4696: 
                   4697: Thu May 26 01:17:00 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   4698: 
                   4699:        * integrate.c (save_for_inline): Clear unused slots in parmdecl_map.
                   4700:        (There may be some non-parm regs below max_parm_regno.)
                   4701:        * integrate.c (copy_for_inline): Don't crash if parmdecl_map elt is 0.
                   4702: 
                   4703:        * Don't fail to output a static inline function that was referenced
                   4704:        via a local extern decl before its definition.
                   4705:        * expr.c (expand_call): If need to mark a fcn decl addressable,
                   4706:        mark the identifier addressable also.
                   4707:        * typecheck.c (mark_addressable): If marking fcn addressable,
                   4708:        mark the identifier as well.
                   4709:        * decl.c (start_function): If identifier was marked addressable,
                   4710:        propagate it to the function.
                   4711: 
                   4712:        * parse.y (yylex): Check for ERANGE after atof is called.
                   4713:        (Sun doesn't report ERANGE.)
                   4714: 
                   4715:        * loop.c (may_trap_p): Any floating arithmetic may trap.
                   4716: 
                   4717: Wed May 25 00:03:34 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   4718: 
                   4719:        * parse.y: Delete `noalias'.
                   4720:        (asm_operand): Don't allow this to be empty.
                   4721:        (asm_operands): Do allow this to be empty.
                   4722: 
                   4723:        * reload.c (operands_match_p): Don't let REG and SUBREG match
                   4724:        if the reg isn't a hard reg.
                   4725:        No longer nec. to check reg_renumber, now that reload
                   4726:        substitutes the hard regno.
                   4727: 
                   4728:        * reload1.c (reload): Counting existing spilled groups,
                   4729:        check HARD_REGNO_MODE_OK so we don't get fooled by an odd-even pair.
                   4730:        Spill entire need for new groups before spilling any solitary regs.
                   4731:        Reg already counted against max_nongroups can't become part of a group.
                   4732:        (new_spill_reg): Do bookkeeping associated with a new spill-reg.
                   4733:        (n_spills): This var is now static, no longer passed as arg
                   4734:        within the file.
                   4735: 
                   4736:        (reload_reg_class_lower): Handle all group-reloads before solitaries.
                   4737:        (choose_reload_targets): therefore #if 0 the special code for
                   4738:        finding solitary registers that aren't suitable for groups.
                   4739:        But fix two bugs in it: braino deciding whether a reload
                   4740:        is looking for 1 register (not a group).  Use CLASS_MAX_NREGS.
                   4741:        Also braino deciding whether a spill reg can be in a group.
                   4742:        Did not fix bug that it fails to test HARD_REGNO_MODE_OK,
                   4743:        so it might split up an even-odd pair.
                   4744: 
                   4745:        * vax.md: Special patterns for 8 and 16-bit fields, to make
                   4746:        move-insns (like the ones for the 68k).
                   4747: 
                   4748:        * tree.c (convert_to_integer): Pass truncation down thru COND_EXPR
                   4749:        as through a binary operator.
                   4750: 
                   4751:        * typecheck.c (build_cond_expr): If unpromoted operand types match,
                   4752:        don't promote them--let containing expression promote (just once).
                   4753: 
                   4754: Tue May 24 14:46:26 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   4755: 
                   4756:        * combine.c (subst): Simplify (subreg (sign_extend X) 0).
                   4757: 
                   4758:        * tm-hp9k320.h: Delete NO_DBX_FORMAT.
                   4759:        * Most tm...h files: Define DBX_DEBUGGING_INFO.
                   4760:        * dbxout.c: Change conditional to DBX_DEBUGGING_INFO.
                   4761: 
                   4762:        * integrate.c (expand_inline_function): If inline fcn was declared to
                   4763:        return QI, but actually computes an SI, use SImode for INLINE_TARGET
                   4764:        but actually return a QI.
                   4765: 
                   4766:        * varasm.c (force_const_mem): Failed to determine alignment bdry
                   4767:        from machine mode.
                   4768: 
                   4769:        * jump.c (jump_optimize): Don't delete (move X Y) if X or Y is a
                   4770:        PRESERVE_DEATH_INFO_REGNO_P register.
                   4771: 
                   4772:        * final.c (output_addr_const): In PLUS, output constant term last.
                   4773: 
                   4774:        * final.c (final): Before outputting an insn, do FINAL_PRESCAN_INSN.
                   4775: 
                   4776:        * final.c (next_block_index): No longer static.
                   4777:        (final): Add SDB_DEBUGGING_INFO cases for outputing NOTEs
                   4778:        for beginning and end of a block.
                   4779:        (output_source_line): Add SDB_DEBUGGING_INFO case for line number.
                   4780:        * varasm.c (assemble_function): Add code for SDB symbol output.
                   4781: 
                   4782:        * gnulib.c: Allow config to override INTIFY.
                   4783:        New macro SFVALUE for data type to return a single-float in.
                   4784: 
                   4785:        * combine.c (remove_death): No longer `static'.
                   4786: 
                   4787:        * reload1. (choose_reload_targets): PRESERVE_DEATH_INFO_REGNO_P
                   4788:        selects hard regs for which death info should be updated for final.
                   4789: 
                   4790:        * reload1.c (reload_as_needed): Let INSN_CLOBBERS_REGNO_P
                   4791:        prevent inheritance of certain reloads.
                   4792: 
                   4793:        * reload.c (find_equiv_reg): Let OVERLAPPING_REGNO_P reject
                   4794:        an equiv reg.  Needed for funny float regs on 80387.
                   4795: 
                   4796:        * cccp.c (do_ident): Define #ident as a no-op if IDENT_DIRECTIVE.
                   4797:        Warn if pedantic.
                   4798:        (do_sccs): Warn if pedantic.
                   4799: 
                   4800:        * emit-rtl.c (restore_reg_data): Set cur_insn_uid--prevent duplicates.
                   4801: 
1.1.1.9   root     4802: See file OChangeLog.
1.1       root     4803: 
                   4804: Local Variables:
                   4805: mode: indented-text
                   4806: left-margin: 8
                   4807: fill-column: 76
                   4808: version-control: never
                   4809: End:

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