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Annotation of gcc/ChangeLog, revision 1.1.1.11

1.1.1.11! root        1: Sat Nov 19 02:18:02 1988  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
        !             2: 
        !             3:        * Version 1.31 released.
        !             4: 
        !             5:        * sparc.md: Change `K' to `I' in all constraints.
        !             6: 
        !             7:        * loop.c (gen_iv_mult): Handle TARGET==0.
        !             8: 
        !             9:        * c-decl.c (duplicate_decls): Undo last change.
        !            10: 
        !            11:        * c-decl.c (pushdecl): Instead of that change,
        !            12:        save old-decl's file/line before calling duplicate_decls,
        !            13:        and pass them later to warning_with_file_and_line.
        !            14:        * toplev.c (warning_with_file_and_line): New fn.
        !            15: 
        !            16: Fri Nov 18 13:07:06 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            17: 
        !            18:        * stmt.c (fixup_var_refs_1): (SUBREG (MEM)) was slipping through
        !            19:        in case where a SET was writing in the variable being fixed.
        !            20: 
        !            21:        * recog.c (register_operand, nonmemory_operand, memory_operand):
        !            22:        Changes to handle new var reload_completed: 1 means that
        !            23:        (SUBREG (MEM)) now counts as a mem-ref, since alter_subreg
        !            24:        will make it one.
        !            25:        * toplev.c (rest_of_compilation): Set and clear reload_completed.
        !            26: 
        !            27:        * sparc.md (call patterns): If TARGET_SUN_ASM, and address in reg,
        !            28:        output a jmpl rather than a call.
        !            29:        * tm-sun4os3.h: Like tm-sparc.h but turn on TARGET_SUN_ASM.
        !            30: 
        !            31:        * reload.c (push_reloads): Reinstate handling of reg_equiv_constant.
        !            32: 
        !            33: Thu Nov 17 09:48:14 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            34: 
        !            35:        * reload1.c (constraint_accepts_reg_p): Name changed from
        !            36:        constraint_all_regs_p; new arg is reg we are concerned with,
        !            37:        and condition tested takes some advantage of that reg.
        !            38: 
        !            39:        * gcc.c (main): Rename var `error' to `error_count' for name conflict.
        !            40: 
        !            41:        * emit-rtl.c (emit_note): Output line #s even if no debug info wanted.
        !            42:        (emit_line_note): New fn, does what emit_note did.
        !            43:        (emit_line_note_force): New name for emit_note_force.
        !            44:        * stmt.c, c-parse.y: Call emit_line_note instead of emit_note.
        !            45: 
        !            46:        * c-parse.y (maybe_type_qual): Call emit_note instead of emit_line_note
        !            47:        Now we can find the line # of every `asm' from the RTL.
        !            48:        * toplev.c (error_for_asm): New fn, gets line # by searching for NOTE.
        !            49:        * reload.c (find_reloads): Use error_for_asm.
        !            50:        * reload1.c (choose_reload_targets): Likewise.
        !            51:        * final.c (output_operand_lossage): Likewise.
        !            52:        Variable this_is_asm_operands is now current insn if it's nonzero.
        !            53: 
        !            54:        * loop.c (move_movables): When a reg is moved, update regno_first_uid
        !            55:        and regno_last_uid; say life span includes entire loop.
        !            56:        * Decrement THRESHOLD per reg moved, not per insn moved.
        !            57: 
        !            58: Wed Nov 16 08:41:32 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            59: 
        !            60:        * gnulib.c (___builtin_saveregs): New fn, for sparc.
        !            61: 
        !            62:        * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): Don't recognize
        !            63:        SYMBOL_REFs, except for the constants pool.
        !            64:        But do recognize REG+REG and SMALLINT+REG.
        !            65:        * sparc.md: New patterns for fetching and storing memory
        !            66:        whose address is symbolic and not "legitimate".
        !            67: 
        !            68:        * sparc.md (movsi): Add `f' to op1 constraint.
        !            69:        New output clause for result in fp reg.
        !            70:        (Floating point fetch patterns): Output sethi insns.
        !            71:        (call_value, related patterns): value-register has `register_operand'.
        !            72: 
        !            73:        * output-sparc.c (hardreg): New function.
        !            74:        (COMPATIBLE): Clause added for n_regs == 2.
        !            75:        (single_insn_src_p): Return 0 for MEM whose address is absolute.
        !            76: 
        !            77:        * tm-genix.h (GO_IF_LEGITIMATE_ADDRESS subroutines):
        !            78:        Redefine, to exclude any possibility of SB-referencing addresses.
        !            79: 
        !            80:        * loop.c (strength_reduce): Can't eliminate a biv if used before
        !            81:        start of the loop.  Used before is same as used after, if contained
        !            82:        in another loop.
        !            83: 
        !            84:        * recog.c (asm_noperands, decode_asm_operands):
        !            85:        Handle case of no outputs, but some clobbers.
        !            86:        * stmt.c (expand_asm_operands): Generate right stuff for that case.
        !            87: 
        !            88:        * tm-sun3.h (CPP_SPEC): Don't define __HAVE_68881__ if using fpa.
        !            89: 
        !            90: Tue Nov 15 00:10:26 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            91: 
        !            92:        * loop.c (gen_iv_mult): Arg OP0 may not be a constant.
        !            93:        Pay attention to return value of expand_mult.
        !            94:        (eliminate_biv): Call changed.
        !            95: 
        !            96:        * output-m88k.c, output-sparc.c (output_move_double):
        !            97:        Fix typo `optype0' for `optype1'.
        !            98: 
        !            99:        * c-decl.c (duplicate_decls): Don't alter file, line of old decl.
        !           100: 
        !           101:        * c-parse.y (skip_white_space): Don't recognize comments; rely on cpp.
        !           102: 
        !           103:        * rtl.c (rtx_equal_p): Handle vectors.
        !           104: 
        !           105:        * loop.c (scan_loop): Change elts of n_times_set back to positive
        !           106:        for candidates that weren't moved, before doing strength reduction.
        !           107: 
        !           108:        * ns32k.md (movdi, movdf): Use `&' constraint for first operand.
        !           109: 
        !           110:        * reload1.c (reload): Initialize spill_indirect_ok here.
        !           111: 
        !           112:        * config-sun4.h: Recognize `-static' switch.
        !           113: 
        !           114:        * global-alloc.c (set_preference): Avoid using nonsense hard reg #s
        !           115:        that result from adding OFFSET.
        !           116: 
        !           117:        * sdbout.c (sdbout_end_function): Line # in .ef should be relative.
        !           118: 
        !           119:        * final.c (output_source_line): For SDB, don't output negative #s.
        !           120: 
        !           121:        * tm-encore.h (ASM_OUTPUT_LOCAL): Don't ignore SIZE arg.
        !           122: 
        !           123: Mon Nov 14 11:03:16 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           124: 
        !           125:        * reload.c: Don't declare refers_to_regno_p.
        !           126: 
        !           127:        * gcc.c (main): Warn if any input files are for the linker
        !           128:        but the linker is not being run.
        !           129: 
        !           130:        * jump.c (sets_cc0_p): Dumb bug fetching elts of a PARALLEL.
        !           131: 
        !           132:        * local-alloc.c: qty_birth, qty_death elements are now -1, not 0,
        !           133:        when the value is not known.
        !           134: 
        !           135:        * expmed.c (extract_bit_field): Bug computing xbitpos, xoffset
        !           136:        when changing units from bytes to words.
        !           137: 
        !           138:        * loop.c: Rename `times_used' field in `struct movable' to `savings'.
        !           139:        (scan_loop): When scanning the consecutive sets, for each libcall,
        !           140:        increment `savings'--leave `consec'.
        !           141:        When making movable for (SET (REG) 0) which is part of zero-extension,
        !           142:        set `savings' to 1 initially, since only 1 insn will be moved.
        !           143:        And don't let any other reg force that insn.
        !           144:        Reduce initial THRESHOLDs.
        !           145:        (move_movables): Don't add `consec' into `savings'
        !           146:        since the initial `savings' was proportional to `consec'.
        !           147:        Decrement THRESHOLD by 3 (not 2) for each move done.
        !           148: 
        !           149:        * reload1.c (choose_reload_targets): Strip subregs from OLD
        !           150:        before writing the output-reload move-insn.
        !           151: 
        !           152:        * reload1.c (reload): counted_for_groups and counted_for_nongroups
        !           153:        are now file-scope.  Update them both when spilling.
        !           154:        (new_spill_reg): No need for counted_for_nongroups as arg.
        !           155:        (choose_reload_targets): Don't use for a group
        !           156:        any spill regs for which counted_for_nongroups is set.
        !           157: 
        !           158:        * dbxout.c (dbxout_symbol): Indirect-symbol case checked erroneously
        !           159:        for PARM_DECL.
        !           160: 
        !           161: Sun Nov 13 08:13:49 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           162: 
        !           163:        * cse.c (fold_rtx): Don't alter MULT by -1 if arg mode != result mode.
        !           164: 
        !           165:        * loop.c (move_movables): If moving a CALL_INSN, make a new CALL_INSN.
        !           166:        * emit-rtl.c (emit_call_insn_before): New fn.
        !           167:        
        !           168:        * config-sun4.h (LINK_SPEC): Avoid shared libraries if -g.
        !           169: 
        !           170:        * expr.c (store_one_arg): Stabilize ARG->stack so it doesn't use SP
        !           171:        before computing the arg value.
        !           172: 
        !           173:        * combine.c (use_crosses_set_p): Moving a ref to stack ptr
        !           174:        is always forbidden if machine has push insns, since might cross one.
        !           175: 
        !           176:        * vax.md (movqi): Avoid out-of-range immed ops in mcomb.
        !           177: 
        !           178:        * expmed.c (extract_bit_field): Don't say `extzv' in the
        !           179:        clause for `extv'.
        !           180: 
        !           181:        * emit-rtl.c (copy_rtx_if_shared): Even if a MEM can be shared,
        !           182:        unshare its address from everything outside that MEM.
        !           183: 
        !           184:        * expr.c (expand_builtin): Fix omitted arg to `convert_to_mode'.
        !           185: 
        !           186:        * expr.c (store_expr): In case where will not return TARGET
        !           187:        and must do type conversion, don't fail to store into TARGET.
        !           188: 
        !           189:        * dbxout.c (FORCE_TEXT): New macro used before output `.stabs'
        !           190:        to go to the text section on targets that require it.
        !           191:        (DEBUG_SYMS_TEXT): Target macro which turns on that feature.
        !           192: 
        !           193:        * reload1.c (reload): Index in spill_regs was wrong
        !           194:        when checking counted_for_groups.
        !           195:        (choose_reload_targets): When calling find_equiv_reg looking for
        !           196:        a reload reg, reject all spill regs, even those not in use now.
        !           197: 
        !           198:        * tm-sun386.h, tm-sun386i.h, config-sun386i.h: New files.
        !           199: 
        !           200:        * cccp.c (main): Don't die if no output file arg given.
        !           201: 
        !           202:        * fixincludes: Tell `find' to find only ordinary files.
        !           203: 
        !           204: Sat Nov 12 20:43:20 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           205: 
        !           206:        * Makefile (gnulib): Use cp to make the temporary .c files;
        !           207:        less likely to fail than ln.
        !           208: 
        !           209: Sat Nov  5 12:46:39 1988  Randall Smith  (randy at sugar-bombs.ai.mit.edu)
        !           210: 
        !           211:        * tm-m68k.h (HARD_REGNO_MODE_OK): Disallowed d7:a0 as an allowable
        !           212:        pair of registers to hold a double value.  This is correct for the
        !           213:        fpa but incorrect for the 68881.  It was, however, simpler than
        !           214:        defining a new regclass.
        !           215: 
        !           216: Tue Oct 25 12:03:49 1988  Randall Smith  (randy at gluteus.ai.mit.edu)
        !           217: 
        !           218:        * m68k.md: Added some thoughts (comments) on best method to allow
        !           219:        68881 code with fpa code.
        !           220: 
1.1.1.10  root      221: Thu Oct 13 14:19:17 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    222: 
1.1.1.11! root      223:        * Version 1.30 released.
        !           224: 
1.1.1.10  root      225:        * stupid.c (stupid_life_analysis): Init last_call_suid with
                    226:        largest possible value, not 0.
                    227: 
                    228: Wed Oct 12 04:40:18 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    229: 
                    230:        * output-i386.c (output_asm_insn_double_reg_op): Compensate for
                    231:        assembler bug that interchanges fsub and fsubr.
                    232: 
                    233:        * reload1.c (order_regs_for_reload): Undo 29 Sept change.
                    234:        It breaks the 386.
                    235: 
                    236:        * varasm.c (decode_rtx_const): Don't example value->addr
                    237:        if what was stored in was value->d.
                    238: 
                    239:        * toplev.c (set_float_handler): New fn, specify where to jump
                    240:        on floating exception signal.
                    241:        * fold-const.c (combine): Use that to handle overflow in arithmetic.
                    242: 
                    243:        * c-decl.c (grokdeclarator): Don't clear CONSTP, VOLATILEP
                    244:        when making an array type.
                    245: 
                    246:        * dbxout.c (dbxout_symbol): Ignore VAR_DECLs in memory whose
                    247:        addresses we can't represent.
                    248: 
                    249:        * fold-const.c (fold): don't convert >= to > if both args are constant.
                    250:        When converting >= to >, don't fail to change CODE.
                    251: 
                    252: Tue Oct 11 04:13:40 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    253: 
                    254:        * vax.md (movhi): Error in truncating mcomw, addh3 args to 16 bits.
                    255: 
                    256:        * final.c: Better error checking for %-specs in templates.
                    257:        (output_operand_lossage): new fn to report errors.
                    258:        (insn_noperands): new var: # operands in current fn.
                    259:        (this_insn_asm_operands): new var: 1 for `asm', 0 otherwise.
                    260:        (output_asm_insn): Check for operand # out of range.
                    261:        (output_asm_label, output_operand): Call new fn to report errors.
                    262: 
                    263:        * reload.c (push_reloads): An input reload for (REG N) can match one
                    264:        for (POST_INC (REG N)) or (PRE_INC (REG N)), since the value
                    265:        reloaded is the same in any case.
                    266: 
                    267: Mon Oct 10 06:19:05 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    268: 
                    269:        * recog.c (next_insns_test_no_inequality): Like next_insn_tests...
                    270:        but check all insns that follow this one and can use it's cc's.
                    271:        * output-m68k.c (output_btst): Use that.
                    272: 
                    273:        * vax.md (movsf, movdf): Undo last change; movq/movl set the cc wrong.
                    274: 
                    275:        * expr.c (expand_call): Set current_function_calls_setjmp if appro.
                    276:        * stmt.c (setjmp_protect): New fn: move all vars into stack
                    277:        unless declared `register'.
                    278:        * c-decl.c (finish_function): Call it if -traditional and setjmp used.
                    279: 
                    280:        * cccp.c (main): Open output after the input.
                    281:        Handle `-o -'.
                    282: 
                    283: Sun Oct  9 00:28:06 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    284: 
                    285:        * tm-sun3.h (CPP_SPEC): Define __HAVE_FPA__ if appropriate.
                    286: 
                    287:        * c-decl.c (pushdecl): After duplicate_decls, maybe warn about
                    288:        "declared extern and later static".
                    289: 
                    290:        * expmed.c (store_bit_field): In insv case, avoid turning
                    291:        VALUE into a subreg of a subreg.
                    292: 
                    293:        * loop.c (move_movables): When moving a libcall,
                    294:        un-cse the function address; put it into the call insn.
                    295: 
                    296: Sat Oct  8 01:48:03 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    297: 
                    298:        * cse.c (equiv_constant): Subroutine to find the constant equivalent
                    299:        of a reg.  Now handles SUBREGs too.
                    300:        (fold_rtx, fold_cc0): Use that function.
                    301:        Don't handle SUBREGs like arithmetic.
                    302: 
                    303:        * reload1.c (choose_reload_targets): Don't call reg_overlap_mentioned_p
                    304:        if arg is 0.
                    305: 
                    306: Fri Oct  7 01:00:19 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    307: 
                    308:        * assert.h: Typo declaring __eprintf.
                    309: 
                    310:        * config.gcc: New file for making the links.
                    311:        Fixed bugs for sun-[23]-os4.  Added sun-[234] for sunos 3.
                    312:        Added sequent-i386.
                    313: 
                    314:        * emit-rtl.c (gen_rtx): Return const0_rtx for 0 in DImode.
                    315:        * varasm.c (immed_double_const): Don't be confused by this.
                    316: 
                    317:        * expmed.c (negate_rtx): New 1st arg MODE.
                    318:        * expr.c (push_block): Calls changed.
                    319:        * m68k.md, ns32k.md, vax.md: Calls changed.
                    320: 
                    321:        * c-decl.c (duplicate_decls): Don't discard DECL_BLOCK_SYMTAB_ADDRESS.
                    322: 
                    323:        * tree.c (staticp): INDIRECT_REF with constant address is static.
                    324:        COMPONENT_REF may not be, if component offset isn't constant.
                    325: 
                    326:        * c-typeck.c (default_conversion): Converting array to ptr, if array
                    327:        isn't a VAR_DECL, go through build_unary_op so that COMPONENT_REFs
                    328:        will be simplified away.
                    329: 
                    330:        * ns32k.md (tbitd patterns): op 0 constraint: reject constants.
                    331:        * ns32k.md (extzv for SImode and HImode):
                    332:        Use adj_offsetable_operand; plus_constant was the wrong thing.
                    333: 
1.1.1.9   root      334: Thu Oct  6 00:10:41 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    335: 
                    336:        * Version 1.29 released.
                    337: 
                    338:        * loop.c (scan_loop): Don't think a `return' insn enters the loop.
                    339: 
                    340:        * ns32k.md (ashrsi3, etc): New define_expands for right shift.
                    341: 
                    342:        * reload1.c (choose_reload_targets): Change in the `force_group'
                    343:        logic to avoid crashes.
                    344: 
                    345: Wed Oct  5 04:09:19 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                    346: 
                    347:        * expr.c (expand_expr, MINUS_EXPR): When negating integer op1,
                    348:        truncate it to its mode.
                    349: 
                    350:        * expmed.c (extract_bit_field): SUBREG error check was wrong;
                    351:        SImode SUBREGs are possible and ok in extzv, extv.
                    352: 
                    353:        * tm-ns32k.md (REGISTER_NAMES): Had two excess elements; deleted.
                    354: 
                    355: Mon Oct  3 01:15:51 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                    356: 
                    357:        * toplev.c (main, compile_file): If no files spec'd, use stdin, stdout.
                    358: 
                    359:        * flow.c (propagate_block): When checking for stack-adjust insns,
                    360:        exclude non-SET patterns.
                    361: 
                    362:        * jump.c (jump_optimize): When changing jump=>return to return,
                    363:        must rerecognize the insn.
                    364: 
                    365:        * toplev.c (compile_file): Allow `-' for main input or output filename.
                    366: 
                    367: Sun Oct  2 10:30:09 1988  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                    368: 
                    369:        * final.c (final): NOTICE_UPDATE_CC has extra arg, INSN.
                    370:        * tm-*.h: Change definitions.
                    371: 
                    372:        * stmt.c (optimize_bit_field): Use gen_lowpart to make subregs.
                    373: 
                    374:        * stmt.c (assign_parms): Don't obey regdecls in inline function.
                    375:        Don't lose existing REG_NOTES when adding one.
                    376: 
                    377:        * stmt.c (expand_function_start): Make return rtx before
                    378:        marking parms live.
                    379:        (expand_function_end): Use use_variable to emit USEs for SAVE_EXPRs.
                    380: 
                    381:        * stmt.c (expand_return): Handle TRUTH_AND_EXPR like ANDIF; OR also.
                    382: 
                    383:        * stmt.c (expand_end_stmt_expr): Always set TREE_VOLATILE,
                    384:        sometimes TREE_THIS_VOLATILE.
                    385: 
                    386:        * jump.c (delete_insn): When finding PREV, skip deleted insns.
                    387: 
                    388:        * varasm.c (output_constant): WORDS_BIG_ENDIAN test was backwards.
                    389: 
                    390:        * emit-rtl.c (gen_lowpart): Allow MODE > 1 word if X is same size.
                    391: 
                    392:        * final.c (final): Don't delete no-op moves (jump did it if appro.).
                    393: 
                    394:        * final.c: Support prescan pass.
                    395:        (final_start_function): init_recog and CC_STATUS_INIT mvd to `final'.
                    396:        (final): New arg PRESCAN.  Do no output if prescanning.
                    397:        Don't alter conditionals if PRESCAN < 0 (prescan already done).
                    398:        If jump becomes no-op, change it to a NOTE.
                    399:        Remember to free the temp space for ASM_OPERANDS.
                    400: 
                    401:        * final.c (final): Altering store-flag must check STORE_FLAG_VALUE.
                    402:        Don't try to do it if that isn't defined.
                    403:        Don't try it if condition doesn't test CC0.
                    404:        (alter_cond): No need to check COND != 0.
                    405:        Handle CC_Z_IN_NOT_N and CC_Z_IN_N.
                    406:        (m68k.md): Delete code that handled CC_Z_IN_NOT_N.
                    407: 
                    408:        * conditions.h: New flag CC_Z_IN_N.
                    409:        * tm-*.h: Renumber all CC_... flags to make room.
                    410: 
                    411:        * combine.c (use_crosses_set_p): Loop start was 1 off.
                    412: 
                    413:        * local-alloc.c (reg_is_set): When a reg is CLOBBERed and dies in
                    414:        one insn, make it live immediately before and after that insn.
                    415: 
                    416:        * global-alloc.c: Hard reg preferences for global pseudos.
                    417:        Var allocno_preferred_reg deleted; new vars hard_reg_preferences
                    418:        and regs_someone_prefers.
                    419:        (global_alloc): Init those vars.  Pass hard_reg_preferences elt
                    420:        to find_reg.
                    421:        (set_preference): New function makes entries in those vars.
                    422:        (global_conflicts): new arg to mark_reg_store.  Call set_preference.
                    423:        (find_reg): Last arg now a preferred hard_reg_set.
                    424:        Scan that set first of all.
                    425:        (mark_reg_store): New arg is offset for renumbered regno.
                    426:        But the code to use it is turned off.
                    427: 
                    428:        * global_alloc (check_frame_pointer_required): Handle reg_equiv_address
                    429:        like reg_equiv_mem.  Don't try to allocate pseudos with equiv mems
                    430:        that don't use the frame pointer.
                    431:        * reload1.c (reload): Call changed.
                    432: 
                    433:        * jump.c (sets_cc0_p): Tests whether rtx sets cc0, and whether
                    434:        it does nothing but set cc0.
                    435:        (find_cross_jump, delete_jump): Use that fn for these tests.
                    436:        * loop.c (loop_skip_over): Likewise.
                    437:        * reload.c (push_reload): Likewise.
                    438: 
                    439:        * genoutput.c: Output `const' before the data arrays.
                    440:        Define it as nothing if not __STDC__.
                    441: 
                    442: Sat Oct  1 02:19:29 1988  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                    443: 
                    444:        * expr.c (store_one_arg): 3rd arg to emit_block_move is in bytes.
                    445: 
                    446:        * cse.c (fold_rtx): Handling ZERO_EXTEND or SIGN_EXTEND of constant,
                    447:        if the arg width is too wide to handle, return safely.
                    448: 
                    449:        * combine.c (FAKE_EXTEND_SAFE_P): Don't allow extend to > 1 word.
                    450: 
                    451:        * rtl.c (refers_to_regno_p): Moved from reload.c.  Not static.
                    452:        (reg_overlap_mentioned_p): New function, calls the above.
                    453:        * output-*.c: Use that instead of reg_mentioned_p.
                    454:        * tm-*.h (NOTICE_UPDATE_CC): Likewise.
                    455:        * reload.c (push_reload, combine_reloads): Likewise.
                    456:        * reload1.c (choose_reload_targets): Use it to check earlyclobbers.
                    457: 
                    458:        * reload1.c (choose_reload_targets): Elimination of previous
                    459:        output-reload feeding our input now limited to pseudo-regs.
                    460: 
                    461:        * flow.c (life_analysis): Delete any insn copying reg to itself.
                    462:        (propagate_block): Move update of OLD after special life and death
                    463:        for CALL_INSNs.
                    464: 
                    465:        * vax.md (ashrsi3, ashrdi3, rotrsi3): define_expands to negate
                    466:        the shift count.
                    467:        * expmed.c (expand_shift): Eliminate negate-the-shift-count feature.
                    468: 
                    469:        * vax.md (and*i3): define_expands which use complement and bit-clear.
                    470:        * expmed.c (expand_bit_and): Eliminate feature to do that.
                    471:        This function could be eliminated.
                    472: 
                    473:        * expmed.c (store_bit_field): Handle nested subregs.
                    474:        Allow gen_insv to fail; if it does, delete what we did and then
                    475:        use store_fixed_bit_field.
                    476:        (store_fixed_bit_field): Use gen_lowpart to make SUBREGs.
                    477:        Do that for SUBREGs just as for REGs.
                    478:        Error check OFFSET must be 0 for REGs.
                    479:        (store_split_bit_field): Error check OP0 is a SUBREG when expected.
                    480:        (extract_bit_field): Allow gen_ext{,z}v to fail.
                    481:        Use gen_lowpart to make subregs.
                    482:        (expand_shift): If a try fails, delete any insns it made.
                    483: 
                    484:        * expmed.c (expand_mult): Use expand_unop to negate.
                    485:        When adding 2 powers of 2, do serial shifts, not parallel.
                    486:        Handle absval==1 like other powers of 2.
                    487: 
                    488:        * explow.c (force_reg): Don't lose any existing reg notes.
                    489: 
                    490:        * stmt.c (expand_start_stmt_expr): Eliminate return value.
                    491:        (expand_end_stmt_expr): No need for argument.
                    492:        * c-parse.y (primary): Change calls.
                    493: 
                    494: Fri Sep 30 01:50:22 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                    495: 
                    496:        * integrate.c (copy_rtx_and_substitute, copy_address):
                    497:        'u' case erroneously returned the translated single element.
                    498:        (copy_address): Special cases for frame-ptr and sums containing it.
                    499:        MEM and LABEL_REF cases passed wrong arg to copy_rtx_and_substitute.
                    500:        (copy_rtx_and_substitute): adjust mode of inline_target for context.
                    501: 
                    502:        * jump.c (true_regnum): For SUBREG of pseudo, use pseudo's # unchanged.
                    503: 
                    504: Thu Sep 29 02:50:46 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                    505: 
                    506:        * i386.md (movsi, mov{q,h}i): Use find_reg_note to look for REG_WAS_0.
                    507:        * vax.md (movsi, movhi): Likewise.
                    508: 
                    509:        * varasm.c (decode_rtx_const): Was setting un.addr.base wrong
                    510:        for a CONST.  Should be symbol name, not the SYMBOL_REF.
                    511: 
                    512:        * rtl.c (rtx_equal_p): When comparing registers, check
                    513:        REG_FUNCTION_VALUE_P.  If there are `u'-slots in the rtx, ignore them.
                    514: 
                    515:        * rtl.c (reg_mentioned_p): Some rtx types were mistakenly treated
                    516:        as uniquified (various constants).
                    517: 
                    518:        * rtl.c (read_rtx): Element type 'S' is string that may be omitted.
                    519:        * rtl.def (define_insn, define_peephole): Add a last element, type 'S'.
                    520:        * genoutput.c: Collect these optional last elements and output as
                    521:        array `insn_machine_info' of structs `INSN_MACHINE_INFO'.
                    522:        The last must be defined as a macro.
                    523:        * recog.h (insn_machine_info): Declare it if appropriate.
                    524: 
                    525:        * regclass.c (record_address_regs): In PLUS case, look inside SUBREGs.
                    526: 
                    527:        * reload1.c (reload): Use reg_equiv_address for REG_EQUIVs with
                    528:        invalid memory addresses.
                    529:        When changing pseudos to mem refs at end, do FIX_FRAME_POINTER_ADDRESS
                    530:        on their addresses.
                    531:        (alter_reg): Check that with reg_equiv_mem.
                    532:        (spill_hard_reg): If fp reg, spill regardless of basic_block_needs.
                    533: 
                    534:        * reload1.c (order_regs_for_reload): Don't put invalid regs into
                    535:        potential_reload_regs at all.  (They used to go at the end.)
                    536: 
                    537:        * reload.c (find_reloads): Store all earlyclobber operand in
                    538:        reload_earlyclobbers (# in n_earlyclobbers):
                    539:        * reload.1 (choose_reload_targets): Don't use value of find_equiv_reg
                    540:        if it matches an earlyclobber operand.
                    541: 
                    542:        * reload.c (find_reloads_address for REG):
                    543:        No need for explicitly excluding hard regs in these tests.
                    544:        (find_reloads, find_reloads_address_1 for REG): likewise.
                    545: 
                    546:        * reload.c (push_reload): Code testing reg_equiv_constant should
                    547:        be obsolete; add error check to verify this.
                    548: 
                    549:        * reload.c (hard_reg_set_here_p): Handle CLOBBERs, SUBREGs, overlap.
                    550:        (refers_to_regno_p): Handle CLOBBERS.  Handle overlap.
                    551:        New arg ENDREGNO specs end of range to check for;
                    552:        all callers changed (all in this file).
                    553: 
                    554:        * reload.c (find_reloads): SUBREG like REG in alternate recovery
                    555:        for earlyclobber conflict.
                    556:        The operands to unswap are those that are supposed to commute.
                    557:        When operands match, copy the regclass of earlier one for later one.
                    558: 
                    559:        * stmt.c (optimize_bit_field): Don't use gen_extend_insn;
                    560:        use convert_move, then reorder the insns.
                    561:        * optabs.c (gen_extend_insn): Deleted.
                    562: 
                    563:        * optabs.c (emit_cmp_insn): Don't emit queue before recursion.
                    564:        Don't convert size to SImode for cmpstrqi.
                    565: 
                    566:        * optabs.c (expand_binop): Keep any old REG_NOTES when adding them.
                    567:        Always delete_insns_since if returning failure.
                    568:        (expand_unop, emit_unop_insn): Keep any old REG_NOTES when adding them.
                    569:        * spur.md (movhi): likewise.
                    570: 
                    571:        * RTL_EXPR_SEQUENCE is now a chain of insns, not a SEQUENCE.
                    572:        * emit-rtl.c (emit_insns): New fn, emit a chain of insns.
                    573:        * expr.c (expand_expr): Use that.
                    574:        Also put const0_rtx in the RTL_EXPR_SEQUENCE (mark RTL_EXPR as output).
                    575:        * stmt.c (expand_end_stmt_expr): Use get_insns to get the chain.
                    576: 
                    577:        * stmt.c (expand_end_stmt_expr): Put the RTL_EXPR on rtl_expr_chain.
                    578:        (fixup_var_refs): Scan all waiting RTL_EXPRs not yet output.
                    579:        Also scan all stacked sequences on sequence_stack.
                    580: 
                    581:        * genemit.c (gen_expand): Generate calls to {start,end}_sequence.
                    582:        Use `emit' to handle a PARALLEL.
                    583:        (FAIL, DONE): Change to fit gen_expand changes.
                    584: 
                    585:        * emit-rtl.c (change_address): abort if arg isn't a MEM.
                    586: 
                    587:        * emit-rtl.c: Sequences work now by saving and restoring first_insn
                    588:        and last_insn.  So these variables are used even when in a sequence.
                    589:        emit_to_sequence has been deleted.
                    590:        (start_sequence, end_sequence): Save and restore first_insn, last_insn.
                    591:        (get_last_insn, add_insn): Sequences no longer need special treatment.
                    592:        (delete_insns_since, reorder_insns): likewise.
                    593:        (push_to_sequence): Set up to emit to a given existing insn chain.
                    594: 
                    595:        * emit-rtl.c (copy_rtx_if_shared): Don't copy INSNs.
                    596:        Insert missing return stmt in MEM case (for MEMs ok to share).
                    597:        (unshare_all_rtx): Now can copy the REG_NOTES simply.
                    598:        Copy the LOG_LINKS too.
                    599: 
                    600:        * emit-rtl.c (make_safe_from): Treat SUBREG as X like a REG.
                    601:        (delete_insns_since): Don't lose if FROM is the first insn.
                    602:        (emit): Declare void, since no useful value.
                    603:        Call simplejump_p properly.
                    604:        (restore_reg_data_1): When a reg is an address, do mark_reg_pointer.
                    605: 
                    606:        * dbxout.c (dbxout_types): Call dbxout_symbol to do the work.
                    607:        (dbxout_type_def): Deleted.
                    608:        (dbxout_symbol): Set TREE_ASM_WRITTEN when a TYPE_DECL is output.
                    609:        Don't output the same one twice. 
                    610: 
                    611:        * cse.c (fold_cc0): LABEL_REF is not zero.
                    612: 
                    613:        * cse.c (cse_insn): Don't insert src, dest if they are the same place.
                    614: 
                    615:        * cse.c (lookup_as_function): Return entire rtx, not just operand.
                    616:        (cse_insn): Caller changed.  Also, copy the result before inserting it.
                    617: 
                    618:        * cse.c (fold_rtx): Put constant arg last if commutative op.
                    619:        Handle idempotents and identities for mult, div, booleans, shifts.
                    620: 
                    621:        * cse.c (canon_hash): Parens were missing around shifts in "rotates".
                    622: 
                    623:        * c-convert.c (convert_to_integer): Truncate TRUTH_ANDIF_EXPR
                    624:        like TRUTH_AND_EXPR; OR also.
                    625: 
                    626:        * c-typeck.c (build_binary_op_nodefault): Do truthvalue_conversion
                    627:        for TRUTH_ANDIF, etc.
                    628:        (build_unary_op): More simplifications for TRUTH_NOT_EXPR;
                    629:        uses new fn `invert_truthvalue'.
                    630: 
                    631:        * recog.c (reg_fits_class_p): New name for reg_renumbered_fits_class_p
                    632:        since it no longer needs to renumber.  Also it now really assumes
                    633:        arg is a REG.  Callers changed.
                    634:        * reload.c: Callers changed.
                    635: 
                    636:        * recog.c (general_operand): (SUBREG (MEM...)) need not alter mode.
                    637:        (register_operand, nonmemory_operand): (SUBREG (MEM...)) is allowed.
                    638:        (memory_operand): (SUBREG (MEM...)) is *not* allowed.
                    639:        (mode_independent_operand): Operand names were backwards!
                    640:        (No change in effect of this function.)
                    641: 
                    642:        * print-tree.c (dump): Some expr nodes contain rtx's.  Print as rtx's.
                    643: 
                    644: Wed Sep 28 18:51:12 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    645: 
                    646:        * reload1.c (choose_reload_targets): If a reload wanted a group,
                    647:        don't allow a single register for it.
                    648: 
                    649: Tue Sep 27 11:43:56 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    650: 
                    651:        * final.c (output_addr_const): Handle DImode CONST_DOUBLEs.
                    652:        * tm-*.h (PRINT_OPERAND): Treat DImode CONST_DOUBLE like a CONST_INT.
                    653: 
                    654:        * vax.md (rotldi3): Insn deleted; it doesn't really exist.
                    655: 
                    656:        * toplev.c (report_error_function): Also mention the file name,
                    657:        for parallel makes.  New arg FILE; all callers changed.
                    658: 
                    659: Mon Sep 26 15:44:18 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    660: 
                    661:        * expmed.c (expand_shift): When using extzv, convert OP1 to SImode.
                    662:        * c-typeck.c (build_binary_op_nodefault): Convert shift-count
                    663:        to int regardless of result type.
                    664: 
                    665:        * output-spur.c (output_move_double): Fix typo, optype0=>optype1.
                    666: 
                    667:        * expr.c (expand_call): Avoid null deref on result of FUNCTION_ARG.
                    668: 
                    669:        * tm-i386.h (FUNCTION_PROFILER): Use correct assembler syntax.
                    670: 
                    671: Sun Sep 25 12:13:56 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    672: 
                    673:        * fixincludes: Handle some files in netdnet, netdna, vaxif, vaxuba.
                    674: 
                    675:        * reload.c (find_reloads): Make no optional reloads if not -O.
                    676: 
                    677:        * loop.c (strength_reduce): Can't eliminate a biv if it's used
                    678:        to compute a DEST_ADDR giv.  Only DEST_REG givs are safe.
                    679: 
                    680:        * loop.c (general_induction_var): Shift & divide ops are linear
                    681:        only in 1st operand; don't look for biv or giv in 2nd operand.
                    682: 
                    683:        * vax.md (fix_truncdfqi2): Use `%#'.
                    684: 
                    685: Sat Sep 24 00:25:48 1988  Richard Stallman  (rms at gluteus.ai.mit.edu)
                    686: 
                    687:        * loop.c (n_times_set, n_times_used): Now file-scope;
                    688:        no longer passed as args to several functions.
                    689: 
                    690:        * loop.c (basic_induction_var): Accept reg as source value
                    691:        only if it's invariant.
                    692:        (strength_reduce): Benefit calculation and threshold changed.
                    693:        Check reducibility of givs before trying to reduce them.
                    694:        Check eliminability of biv before considering the givs;
                    695:        let this affect the threshold.
                    696:        (record_giv): New subroutine adds a giv to the chain.
                    697: 
                    698:        * ns32k.md (incrementing sp): Use cmpd insns to increment by 4 or 8.
                    699: 
                    700:        * integrate.c (expand_inline_function): Rename return_label
                    701:        to local_return_label; avoid shadowing.
                    702: 
                    703: Fri Sep 23 13:57:52 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    704: 
                    705:        * loop.c (loop_skip_over): Put the new label after the note that ends
                    706:        the loop.
                    707: 
                    708:        * loop.c: New function strength_reduce and subroutines.
                    709:        * toplev.c: New var flag_strength_reduce, set from -fstrength-reduce.
                    710: 
                    711:        * vax.md (sob insns): They were broken, with plus in one place
                    712:        and minus in another.  Use plus consistently.
                    713: 
                    714:        * rtl.h (REG_LIBCALL, REG_NONNEG): Two new kinds of reg-note.
                    715:        * optabs.c (expand_binop, expand_unop): Make REG_LIBCALL notes.
                    716:        * loop.c (scan_loop, move_movables): Move entire library calls.
                    717:        Use m->set_src to get the expression, in case it's from a REG_EQUAL.
                    718:        (consec_sets_invariant_p): Likewise.
                    719: 
                    720:        * loop.c (scan_loop): Start scan from loop_top, if entry is rearranged.
                    721:        Watch out for pseudo regs created by strength_reduce;
                    722:        they can't index regno_last_uid.
                    723:        (replace_regs): # regs mapped is now an arg.
                    724: 
                    725:        * loop.c (count_loop_regs_set): Don't increment n_times_set past 127.
                    726:        (consec_sets_invariant_p): Reject if N_SETS arg is 127.
                    727: 
                    728:        * toplev.c (rest_of_compilation): NREGS arg of loop_optimize deleted.
                    729: 
                    730:        * c-decl.c (store_parm_decls): Anything but an IDENTIFIER_NODE
                    731:        in SPECPARMS indicates a parmlist, not an identifier list.
                    732:        (get_parm_info): Use only PARM_DECLs when making the list of arg types.
                    733: 
                    734:        * combine.c (try_distrib): Boolean ops can't distribute through PLUS.
                    735:        MULT can distribute through PLUS and only PLUS.
                    736: 
                    737: Thu Sep 22 15:57:41 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    738: 
                    739:        * jump.c (jump_optimize): uncond jump to a return becomes a return.
                    740: 
                    741:        * integrate.c (copy_parm_decls, copy_decl_tree): Set TREE_USED.
                    742:        Avoid inevitable "unused" warning for these decls.
                    743: 
                    744:        * c-typeck.c (comptypes): When comparing array types,
                    745:        ignore qualifiers of element type.
                    746: 
                    747:        * tm-*.h (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Define new macros.
                    748:        * final.c (final_start_function): Use them to protect around
                    749:        the call to the profiling function.
                    750:        * stmt.c (expand_function_start): Set current_function_needs_context
                    751:        and current_function_returns_struct.
                    752: 
                    753:        * stmt.c (expand_null_return_1): If clear_pending_stack_adjust
                    754:        doesn't clear it, do the adjust now.
                    755:        * expr.c (clear_pending_stack_adjust): No-op if -finline-functions.
                    756: 
                    757:        * cccp.c (macarg1, skip_if_group): Backslash makes next char ordinary.
                    758: 
                    759:        * reload.c (find_reloads): Delete code to look for an equiv reg
                    760:        for a reg being input-reloaded.  This isn't safe.
                    761:        * reload1.c (choose_reload_targets): Do it here.
                    762: 
                    763: Wed Sep 21 00:36:22 1988  Richard Stallman  (rms at hobbes.ai.mit.edu)
                    764: 
                    765:        * tm-sun3.h (CPP_SPEC): Define it based on TARGET_DEFAULT.
                    766:        (STARTFILE_SPEC): Likewise.
                    767: 
                    768:        * reload1.c (choose_reload_targets): When redirecting prev insn
                    769:        into this insn's reload-reg, check this doesn't break the prev insn
                    770:        by giving it a reg it can't accept.  Use new fn constraint_all_regs_p.
                    771: 
                    772:        * tm-sparc.h (ASM_OUTPUT_LOCAL): Use .reserve, not .common.
                    773: 
                    774:        * tree.h (TREE_USED): New attribute macro.
                    775:        * c-parse.y (primary): Set TREE_USED in ..._DECL nodes.
                    776:        * toplev.c, flags.h: Define and set warn_unused.
                    777:        * stmt.c (expand_end_bindings): Warn if any var is unused.
                    778:        * print-tree.c (prtypeinfo): Print this attribute.
                    779: 
                    780: Tue Sep 20 15:29:01 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    781: 
                    782:        * assert.h: `assert' must expand to an expression.
                    783:        Error message should show arg before expansion, not after.
                    784: 
                    785:        * c-decl.c (implicitly_declare): Make decl perm if !warn_implicit
                    786:        since start_function needs to look inside it in that case.
                    787: 
                    788:        * toplev.c (announce_function): If we don't print, don't record we did.
                    789: 
                    790: Mon Sep 19 15:21:11 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    791: 
                    792:        * c-parse.y (structsp): If pedantic, warn if comma at end of enumlist.
                    793: 
                    794:        * reload.c (find_reloads): Check insn_code_number >= 0 when
                    795:        looking in insn_operand_strict_low.
                    796: 
                    797:        * tm-sun[23].h (CPP_SPEC): Rename __HAVE_FPU__ to __HAVE_68881__
                    798:        and put a space after that option.
                    799: 
                    800: Sun Sep 18 01:12:56 1988  Richard Stallman  (rms at hobbes.ai.mit.edu)
                    801: 
                    802:        * reload.c (find_reloads): Make optional reloads for explicit MEMs.
                    803: 
                    804:        * tm-m68k.h (MODES_TIEABLE_P): If no 68881, can tie fixed to floating.
                    805:        * m68k.md (movdi): Allow F's (can be DImode now).
                    806:        Don't allow f-regs (experiment).  Don't preference x-regs.
                    807:        (DImode push): Allow y-regs.
                    808:        (DFmode push): Allow y-regs, not x-regs.
                    809: 
                    810:        * reload1.c (modes_equiv_for_class_p): New function.
                    811:        (reload): Compare multiple modes for reg group with that function.
                    812:        Allows differing modes in some cases when not tieable.
                    813: 
                    814:        * c-parse.y (check_newline): Let ASM_OUTPUT_IDENT override .ident.
                    815:        * tm-3b1.h (ASM_OUTPUT_IDENT):  Define this as no-op.
                    816: 
                    817:        * emit-rtl.c (reorder_insns): Update sequence_{first,last}_insn if nec.
                    818:        (get_last_insn): If in a sequence, return last insn of sequence.
                    819:        (delete_insns_since): If in a sequence, set sequence_last_insn.
                    820: 
                    821:        * spur.md (CONST_DOUBLE load insn): Use & for most dests.
                    822:        (cond branches): pass additional args to output_compare.
                    823:        (movdf, movdi): Use & loading reg from mem.
                    824:        (trunc*): Enable these.
                    825:        (add): New pattern for adding large immediate operand.
                    826:        (shifts): A define_expand for each kind of shift,
                    827:        plus a recognizer which outputs repeated insns if necessary.
                    828:        (call*): Use r9 as temp, not r2.
                    829: 
                    830:        * output-spur.c (output_compare): New args NEG_{EXCHANGE_,}OPCODE.
                    831:        (singlemove_string): Handle reg as operand 1.
                    832:        (output_add_large_offset): Fake add insn with large immediate arg.
                    833:        (big_immediate_operand): Match such an arg.
                    834: 
                    835:        * tm-spur.h (FUNCTION_PROLOGUE): Align the stack pointer.
                    836:        Handle bigger frames.
                    837:        (TARGET_LONG_JUMP, TARGET_EXPAND_SHIFT): New target flags.
                    838: 
                    839:        * va-spur.h: Track position in regs and stack separately.
                    840: 
                    841:        * c-decl.c (duplicate_decls): Warn if prototype follows
                    842:        non-prototype definition.
                    843: 
                    844: Sat Sep 17 14:30:23 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    845: 
                    846:        * expr.c (expand_builtin): Avoid crash if arg isn't integer type.
                    847: 
                    848:        * c-decl.c (duplicate_decls): Just warn if redeclaring a builtin,
                    849:        and leave it built in unless it is redefined.
                    850: 
                    851:        * vax.md (ashlsi3): Use addl3, moval or movad when useful.
                    852:        (addsi3): Avoid pushab, movab for constants < 64.
                    853:        Do use movab when > 64 when operands match.
                    854:        (mov*i): Use mcom* rather than mneg*.
                    855:        Use add*3 with two quick immediate args when useful.
                    856:        (movhi): Don't use movzbw or cvtbw; said to be slow.
                    857: 
                    858:        * rtl.h: New macros MEM_VOLATILE_P, MEM_IN_STRUCT_P,
                    859:        INSN_DELETED_P, REG_USER_VAR_P, RTX_UNCHANGING_P, RTX_INTEGRATED_P,
                    860:        CONSTANT_POOL_ADDRESS_P.
                    861:        Most places changed to use them.
                    862: 
                    863: Fri Sep 16 11:50:15 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    864: 
                    865:        * jump.c (jump_optimize): Was testing volatil on non-MEMs erroneously
                    866:        when looking for no-op move insns.
                    867: 
                    868:        * cccp.c (handle_directive): Ignore comments between # and directive.
                    869: 
                    870:        * integrate.c (copy_rtx_and_substitute): Stack-push memrefs need
                    871:        to be copied.
                    872: 
                    873:        * tm-bsd386.h (ASM_OUTPUT_DOUBLE): Undef previous def.
                    874: 
                    875:        * reload1.c (alter_reg): Don't reuse spill_stack_slot
                    876:        if it isn't big enough for this reg's mode.
                    877: 
                    878:        * expr.c (emit_move_insn): After force_const_mem, ensure
                    879:        mem address is valid.
                    880:        (move_block_to_reg, move_block_from_reg): Likewise.
                    881: 
                    882:        * expr.c (expand_call): Spurious TREE_VALUE on args[i].tree_value.
                    883: 
                    884:        * m68k.md (zero_extend*): Require register_operand for operand 0.
                    885: 
                    886:        * stdarg.h (va_start): Alternate defn for sparc.
                    887: 
                    888: Thu Sep 15 11:39:06 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    889: 
                    890:        * c-parse.y (yylex): When atof gives ERANGE, check for "0.0", etc.
                    891: 
                    892:        * assert.h (__assert): Alternative definition for -traditional.
                    893: 
                    894:        * output-sparc.c (output_block_move): Initialize xoperands.
                    895: 
                    896:        * combine.c (try_combine): Never subst for a reg that is incremented.
                    897: 
                    898:        * m68k.md (cmpm pattern): Make the match_operands match memrefs
                    899:        and check that they are pushes in the extra condition.
                    900:        This makes reloading handle the pushes properly.
                    901: 
                    902:        * expr.c (MOVE_RATIO): Make it 15.  Allow overriding it.
                    903: 
1.1.1.8   root      904: Wed Sep 14 09:50:08 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    905: 
1.1.1.9   root      906:        * c-decl.c (build_enumerator): Use saveable_tree_cons.
                    907: 
                    908:        * vax.md (movdf): Use movq when safe.
                    909: 
1.1.1.8   root      910:        * Version 1.28 released.
                    911: 
                    912:        * tm-sparc.h (FIRST_PARM_CALLER_OFFSET): Defined.
                    913: 
                    914: Tue Sep 13 00:11:37 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                    915: 
                    916:        * tree.c (saveable_tree_cons): New function.
                    917:        * c-decl.c (pushtag): Use it; lists of tags needed for inlining.
                    918:        (get_parm_info): Likewise.
                    919: 
                    920:        * print-tree.c (dump): Handle each kind of statement node individually.
                    921: 
                    922:        * integrate.c (copy_decl_tree): Don't pass DECL_RTL through
                    923:        copy_rtx_and_substitute if it's a memref with constant address.
                    924: 
                    925:        * sdbout.c (sdbout_symbol): Don't output garbage when DECL_RTL
                    926:        has a form we don't understand.
                    927: 
                    928:        * reload.c (find_reloads_address_1): Don't reload an autoincrement
                    929:        if it has a suitable hard reg already.
                    930: 
                    931:        * c-typeck.c (process_init_constructor): Error check after digest_init.
                    932: 
                    933:        * c-parse.y (is_reserved_word): Now static.
                    934: 
                    935: Mon Sep 12 19:19:28 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    936: 
                    937:        * i386.md (all push insns): Use `<' for the constraint,
                    938:        since a push_operand won't fit an `m' constraint on this machine.
                    939: 
                    940:        * expr.c (expand_call): If fn name is `__builtin_alloca',
                    941:        it may be alloca.  This case arises if the user redeclares
                    942:        `__builtin_alloca'.
                    943: 
                    944: Sun Sep 11 01:47:01 1988  Richard Stallman  (rms at gluteus.ai.mit.edu)
                    945: 
                    946:        * Eliminate MAX_SETS_PER_INSN.
                    947:        * cse.c (cse_insn): Combine all the tables and dynamically allocate.
                    948:        (cse_main): Count the actual number of SETs; don't estimate.
                    949:        * genconfig.c: Don't calculate MAX_SETS_PER_INSN.
                    950:        * stmt.c (expand_asm_operands): No limit on # of output operands.
                    951: 
                    952:        * expr.c (expand_call):
                    953:        Store all non-reg parms first, then store all partially-in-reg
                    954:        parms, then all the (precomputed) wholly-in-reg parms.
                    955:        Special hair for BLKmode parms which must be passed entirely
                    956:        in memory; also for BLKmode parms initialized from function calls,
                    957:        for which it is best to allocate the space before computing value.
                    958:        Use macro FIRST_PARM_CALLER_OFFSET to handle machines where reg
                    959:        parms "take up space" on the stack below the stack pointer.
                    960:        (store_one_arg): Handle case of preallocated stack loc for BLKmode.
                    961:        Update current_args_size here, not in caller.
                    962: 
                    963: Sat Sep 10 19:58:03 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    964: 
                    965:        * output-sparc.c (output_scc_insn): Changed asm templates.
                    966:        Use common code to emit the move insns and label at the end of fn.
                    967:        (output_mul_by_constant): Use %g1 as temporary reg.
                    968: 
                    969:        * sparc.md (indexed load pattern): Deleted.
                    970:        (fix_truncdfsi2): Don't ignore value of output_fp_move_double.
                    971:        (cse'd multiply): Operand 1 predicate is general_operand.
                    972:        (return peepholes): Conditionalize on ! TARGET_EPILOGUE.
                    973: 
                    974:        * tm-sparc.h (INIT_CUMULATIVE_ARGS,FUNCTION_ARG...):
                    975:        Use partial regs for args that start in regs but won't entirely fit.
                    976: 
                    977:        * tm-sparc.h (CONST_COSTS): 0 for args that can be immediate.
                    978:        (STRUCTURE_SIZE_BOUNDARY): Now 8.
                    979:        (STRUCT_VALUE_OFFSET): Defined as symbolic name for `64'.
                    980: 
                    981:        * expr.c (struct arg_data): New component `stack' says where in the
                    982:        stack to put a BLKmode arg (if it's nonzero).
                    983:        (store_one_arg): Handle case where it's nonzero.
                    984:        (target_for_arg): New fn, precompute stack locn for BLKmode arg.
                    985: 
                    986: Fri Sep  9 01:41:13 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                    987: 
                    988:        * cse.c (fold_rtx): Misnested ifs screwed SUBREG case.
                    989: 
                    990:        * reload.c (find_reloads_toplev): Special case for (SUBREG REG)
                    991:        where REG is equivalent to a CONST_INT.
                    992:        (find_reloads): Don't ignore the value returned by find_reloads_toplev.
                    993:        Treat a (SUBREG constant) like a (SUBREG MEM): set force_reload.
                    994: 
                    995:        * reload.c (push_reload): Abort if memory subreg is not
                    996:        paradoxical; the MEM mode should be narrower than the SUBREG.
                    997: 
                    998:        * stmt.c (fixup_var_ref_1): Fixup memory subregs in an insn
                    999:        copying VAR to or from a register.
                   1000: 
                   1001:        * m68k.md (movdi, movdf): the x-reg constraint accidentally allowed
                   1002:        moving rm to rm with no &.
                   1003: 
                   1004:        * vax.md (call_value): Typo.
                   1005: 
                   1006:        * expr.c (emit_block_move, emit_push_insn): prefer movstrqi to movstrsi
                   1007: 
                   1008:        * m68k.md (FPA multiply): bad opcodes for 3-operand multiply insns.
                   1009: 
                   1010: Thu Sep  8 18:22:14 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1011: 
                   1012:        * c-parse.y: Use YYERROR instead of synonym YYFAIL.
                   1013:        BISON VERSIONS PRIOR TO THIS DATE WON'T WORK!
                   1014: 
                   1015:        * c-typeck.c (digest_init): Use TYPE_MAIN_VARIANT of array elt type.
                   1016: 
                   1017:        * tm-sun[23].h (CPP_SPEC, ASM_SPEC): Let -m(c|)680[12]0 control
                   1018:        options for CPP and assembler.
                   1019: 
                   1020: Wed Sep  7 13:44:59 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1021: 
                   1022:        * New handling of reloading of PRE_DEC, etc.
                   1023:        Now reload_in is the PRE_DEC, etc, and reload_inc is always positive.
                   1024:        * reload.c (push_reloads): Old code to set reload_inc deleted.
                   1025:        (find_reloads_address_1): Call push_reload the new way.
                   1026:        (find_inc_amount): Value always positive.
                   1027:        * reload1.c (choose_reload_targets): Detect this case.
                   1028:        (inc_for_reload): New fn; does the real work for this case.
                   1029:        * m68k.md (call, call_value): Fn address must be offsetable.
                   1030: 
                   1031:        * combine.c (try_distrib): Reject strange cases such as if
                   1032:        result of PREV1 or PREV2 is used in a memory address in INSN.
                   1033: 
                   1034:        * vax.md (movsf): Generate movl instead of movf.
                   1035: 
                   1036:        * expr.c (expand_call): If have regparms, store all BLKmode args
                   1037:        before all the other args.
                   1038:        (store_one_arg): New subroutine broken out.
                   1039: 
                   1040:        * output-sparc.c (output_block_move): Complete rewrite.
                   1041: 
                   1042:        * sparc.md (cse'd multiply insn): Typo in asm-output code.
                   1043: 
                   1044: Tue Sep  6 20:05:48 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1045: 
                   1046:        * c-parse.y (yylex, etc.) Install Schmidt's perfect hash table.
                   1047: 
                   1048:        * gcc.c: handle extension `.cc'.
                   1049: 
1.1.1.7   root     1050: Mon Sep  5 12:09:58 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1051: 
                   1052:        * Version 1.27 released.
                   1053: 
                   1054:        * tm-i386.md (PREFERRED_RELOAD_REG): When reloading a QImode,
                   1055:        make sure the class doesn't include %esi or %edi.
                   1056:        * i386.md (movqi): Eliminate only use of the class `x',
                   1057:        for which PREFERRED_RELOAD_REG cannot work.
                   1058:        (In next version, get rid of INDEX_CLASS).
                   1059:        Also use `*' to cause preferencing of Q_REGS.
                   1060:        * tm-m68k.md (PREFERRED_RELOAD_REG): When reloading a QImode,
                   1061:        use DATA_REGS.
                   1062: 
                   1063:        * reload.c (push_reloads): Braino in last change when IN == 0.
                   1064: 
                   1065:        * flow.c (mark_used_regs, mark_set_1): Bug if HARD_REGNO_NREGS
                   1066:        returns 0 for VOIDmode reg (inside a CLOBBER).
                   1067: 
                   1068:        * c-parse.y (asm_operand): Handle `("REGNAME")' as an operand.
                   1069:        * recog.c (decode_asm_operands, asm_noperands): Ignore any CLOBBERs.
                   1070:        * regclass.c (reg_names): Variable now global.
                   1071:        * stmt.c (expand_asm_operands): Generate CLOBBERS when appropriate.
                   1072: 
                   1073:        * stmt.c (assign_parms): Ignore parms that aren't PARM_DECLs.
                   1074: 
                   1075:        * varasm.c (assemble_variable): Do ASM_OUTPUT_EXTERNAL for functions.
                   1076: 
                   1077:        * c-parse.y (yylex): floatflag is now an enum.
                   1078:        Detect invalid use of decimal points (> 1, or in exponent)
                   1079:        and multiple exponent letters.
                   1080: 
                   1081:        * expr.c (expand_call): If inlining fails, set TREE_ADDRESSABLE.
                   1082: 
                   1083: Sun Sep  4 00:36:30 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   1084: 
                   1085:        * c-decl.c (grokdeclarator): A const array becomes an array of consts.
                   1086:        * c-typeck.c (build_array_ref): Array ref is const if array elts are.
                   1087: 
                   1088:        * output-sparc.c (output_move_double): Change criteria for ldd, std.
                   1089:        (output_fp_move_double): New alternatives avoid ldd, std for
                   1090:        stack refs that aren't aligned.
                   1091:        (output_block_move): Use %g1 as temp reg.
                   1092: 
                   1093:        * sparc.md (floating point load from constant mem address):
                   1094:        Use %g1 as temp reg.  Use output_move_double in DF case, not ldd.
                   1095:        (movsf): Asm insn typo in FPreg to FPreg case.
                   1096:        (floatsi{s,d}f2): Constraint changed.
                   1097:        Also new special case pattern in front of it.
                   1098:        (fix_truncdfsi2): Use output_move_double, not ldd.
                   1099:        (addsi3, subsi3): Use %g1 as temp reg.
                   1100:        (cse-optimized multiply): Constraint now `g'; output generalized.
                   1101:        (andsi3, orsi3, xorsi3): Use %g1 as temp reg.
                   1102: 
                   1103:        * reload.c (find_reloads): Force int constants into memory just
                   1104:        like floating ones, if memory is allowed and no regs are.
                   1105: 
                   1106:        * expr.c (expand_call): Don't treat structure_value_addr like a parm
                   1107:        if the first parm would be passed in a register.
                   1108:        Also, write comments for all local vars.
                   1109: 
                   1110:        * tm-386v.h (START_SPEC): Use {g,m}crt1.o, not {g,m}crt0.o.
                   1111:        (LIB_SPEC): Always use crtn.o.
                   1112: 
                   1113: Sat Sep  3 13:05:50 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1114: 
                   1115:        * explow.c (plus_constant): Don't put CONST around lone SYMBOL_REF.
                   1116: 
                   1117:        * combine.c (subst): Simplify zero- or sign-extend of a constant.
                   1118: 
                   1119:        * expr.c (expand_expr): for REAL_CST, etc., check for invalid
                   1120:        memory addresses and copy into registers.
                   1121: 
                   1122:        * integrate.c (expand_inline_function): If incoming struct value addr
                   1123:        is in memory, map it like a memory parameter.
                   1124: 
                   1125:        * tm-*.h (FIRST_PARM_OFFSET): Now takes fndecl as argument.
                   1126:        * integrate.c (expand_inline_function): Calc., use and save
                   1127:        this fns value of FIRST_PARM_OFFSET.
                   1128:        (copy_rtx_and_substitute): Use that value.
                   1129:        * stmt.c (assign_parms): Likewise.
                   1130: 
                   1131:        * tm-sparc.h (FIRST_PARM_OFFSET): Make it 64 if value is BLKmode.
                   1132:        (STRUCT_VALUE{,_INCOMING}): Put the value in 64(fp).
                   1133: 
                   1134:        * tm-sparc.h (PRINT_OPERAND_ADDRESS): Print offsets in decimal.
                   1135:        Avoid excess `+' before a negative offset.
                   1136: 
                   1137:        * stmt.c (expand_function_start): Create the return value rtl
                   1138:        before making the tail-recursion loop point.
                   1139: 
                   1140:        * combine.c (gen_lowpart_for_combine): Generate a paradoxical subreg
                   1141:        rather than a wider memref.
                   1142: 
                   1143:        * reload.c (push_reload): Extend last change to case where OUT != 0.
                   1144: 
                   1145: Fri Sep  2 11:43:20 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1146: 
                   1147:        * stmt.c (fixup_var_refs): Adjust last_parm_insn when deleting insns.
                   1148: 
                   1149:        * expr.c (emit_push_insn): calling memcpy, bump TEMP 2 pointers worth.
                   1150: 
                   1151: Thu Sep  1 16:39:57 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1152: 
                   1153:        * reload1.c (choose_reload_targets): Test for canceled reload
                   1154:        before looking inside reload_out.
                   1155: 
                   1156:        * jump.c (jump_optimize): Bug in last change.
                   1157: 
                   1158:        * m68k.md (return): Pattern disabled; confuses Aug 29 stmt.c change.
                   1159:        * ns32k.md, i386.md: likewise.
                   1160: 
                   1161:        * emit-rtl.c (emit_note_force): New, like emit_note but always do it.
                   1162:        * stmt.c (expand_function_end): Use emit_note_force.
                   1163: 
                   1164: Wed Aug 31 11:34:08 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1165: 
                   1166:        * reload1.c (alter_reg): New arg FROM_REG is hard reg that the pseudo
                   1167:        was spilled from.  Works with spill_stack_slot.  Callers changed.
                   1168:        Now all pseudos spilled from one hard reg get the same slot.
                   1169:        (reload): Initialize new variable spill_stack_slot.
                   1170: 
                   1171:        * cse.c (cse_insn): Don't insert floating point mems if -ffloat-store.
                   1172: 
                   1173:        * reload.c (find_equiv_reg): Allow no equivs for volatile memrefs.
                   1174:        Also none for floating mem refs if -ffloat-store.
                   1175: 
                   1176:        * output-sparc.c (output_mul_by_constant): make `p' and `log' unsigned.
                   1177: 
                   1178: Tue Aug 30 13:47:12 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1179: 
                   1180:        * jump.c (jump_optimize): Ignore other NOTEs while looking for
                   1181:        a NOTE_INSN_FUNCTION_END.
                   1182: 
                   1183:        * integrate.c (save_for_inline): Flush extra call to max_reg_num.
                   1184:        Don't copy NOTEs that are NOTE_INSN_FUNCTION_END.
                   1185:        (copy_for_inline): Don't copy NOTEs that are NOTE_INSN_FUNCTION_END.
                   1186: 
                   1187:        * stmt.c (optimize_bit_field): If bit field is SRC, strip subregs
                   1188:        from the DEST.
                   1189: 
                   1190:        * expmed.c (expand_mult): Special case for -1 as one operand.
                   1191: 
                   1192: Mon Aug 29 12:14:51 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1193: 
                   1194:        * stmt.c (expand_goto_internal, expand_fixup): New arg LAST_INSN.
                   1195:        (expand_return): Pass that arg in tail-recursive case.
                   1196:        (other callers): Pass 0 for that arg.
                   1197:        (expand_null_return): Handle HAVE_return nonzero w/ FUNCTION_EPILOGUE.
                   1198:        (expand_null_return_1): New fn, has guts of old expand_null_return.
                   1199:        (expand_return): Call expand_null_return_1 to pass LAST_INSN arg.
                   1200:        (expand_return): Handle HAVE_return nonzero w/ FUNCTION_EPILOGUE.
                   1201:        (expand_function_{start,end}): Likewise.
                   1202:        (expand_cleanups): Fix typo in recursive-list case.
                   1203:        (move_cleanups_up): New fn.
                   1204: 
                   1205:        * expr.c (expand_call): Execute cleanups_of_this_call on exiting.
                   1206:        Notice calls to __builtin_new (but don't do anything about them yet).
                   1207: 
                   1208:        * reload.c (push_reload): If reloading a (SUBREG (MEM ...) ...),
                   1209:        really reload just the MEM in the MEM's own mode.
                   1210: 
                   1211:        * sparc.md: Define patterns for insns that set the ccs.
                   1212:        Define set-flag insns.
                   1213:        New patterns for indexed load, and for optimizing signed bit fields.
                   1214:        (mulsi3, umulsi3): Give "r" constraint to operand 0.
                   1215:        Peephole optimizers recognize some cases where delay insns are safe.
                   1216:        Changed patterns for call and return insns as well.
                   1217: 
                   1218:        * output-sparc.c (single_insn_src_p): New fn.
                   1219:        (output_delay_insn): New fn.
                   1220: 
                   1221:        * tm-sparc.h (TARGET_EPILOGUE): New target flag.
                   1222:        (NOTICE_UPDATE_CC): New clause for funny PARALLEL with a REG in it.
                   1223: 
                   1224:        * m68k.md (movqi): Use *'s to ensure preferencing d-regs.
                   1225: 
                   1226:        * c-parse.y (datadef): If traditional, no warning about no specs.
                   1227: 
                   1228: Sun Aug 28 14:34:33 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1229: 
                   1230:        * tm-i386.h: Define PROMOTE_PROTOTYPES.
                   1231:        POINTER_BOUNDARY now 32.
                   1232: 
                   1233:        * regclass.c (reg_scan): Compute `max_parallel', max # of sets and
                   1234:        clobbers in any insn in this function.
                   1235:        * global-alloc.c (global_conflicts): Use that, not MAX_SETS_PER_INSN.
                   1236: 
                   1237:        * stmt.c (expand_asm_operands): MAX_SETS_PER_INSN limits # output ops.
                   1238: 
                   1239:        * emit-rtl.c (init_emit_once): Make elt 2 of {f,d}const0_rtx nonzero.
                   1240: 
                   1241:        * c-decl.c (lang_decode_option): Handle -Wwrite-string.
                   1242:        * c-parse.y (combine_strings): If that flag, make array of const char.
                   1243: 
                   1244:        * expr.c (expand_expr): for INTEGER_CST, always use immed_double_const;
                   1245:        never do output_constant_def (it didn't work).
                   1246:        Also heed WORDS_BIG_ENDIAN.
                   1247: 
                   1248:        * varasm.c (output_constant): Handle integer CONST_DOUBLEs.
                   1249:        (output_constant_def): Abort if arg is an INTEGER_CST.
                   1250: 
                   1251:        * emit-rtl.c (gen_rtx): Don't return {f,d}const0_rtx for DImode.
                   1252: 
                   1253: Sat Aug 27 12:37:23 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1254: 
                   1255:        * c-decl.c (pushdecl): Global extern decls set TREE_PUBLIC
                   1256:        like local ones.
                   1257: 
                   1258:        * integrate.c (expand_inline_function): Handle parms that were
                   1259:        passed in registers but whose homes are on the stack.
                   1260: 
                   1261:        * varasm.c (force_const_mem): Output ints according to spec'd mode.
                   1262:        ({record,compare}_constant_rtx,const_hash_rtx,decode_rtx_const):
                   1263:        Take mode as argument; pass it along.
                   1264: 
                   1265:        * c-parse.y (read_escape): No warning for `\{' or `\['.
                   1266: 
                   1267: Fri Aug 26 12:23:07 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1268: 
                   1269:        * stmt.c (fixup_memory_subreg): Typo calculating big-endian adjust.
                   1270: 
                   1271:        * vax.md (call_value): Handle >255 args as in `call'.
                   1272: 
                   1273: Thu Aug 25 16:00:51 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1274: 
                   1275:        * jump.c (delete_jump): Don't delete the cc-setter if it has autoinc.
                   1276: 
                   1277: Wed Aug 24 16:33:37 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1278: 
                   1279:        * expr.c (expand_expr): For sun with a COND_EXPR, use SUBTARGET
                   1280:        if validate_subtarget says ok.
                   1281: 
                   1282:        * tree.c (build_index_type): make_index_type moved here and renamed.
                   1283: 
                   1284:        * combine.c (move_deaths_2): New function.
                   1285:        (try_distrib): Use that, not move_deaths.
                   1286: 
                   1287:        * tm-sparc.h (SHIFT_COUNT_TRUNCATED, STORE_FLAG_VALUE): Define them.
                   1288: 
                   1289:        * tm-sparc.h: FUNCTION_{PRO,EPI}LOGUE: Save room for ins and
                   1290:        locals to spill to the frame if any ins *or* locals are live.
                   1291: 
                   1292:        * tm-sparc.h (NOTICE_UPDATE_CC): Delete the clause that always
                   1293:        cleared the cc's for unrecognized insns.
                   1294: 
                   1295:        * reload1.c (reload_as_needed): Don't try to use a spill-reg
                   1296:        in a basic block that wasn't spilled: ignore optional reloads.
                   1297: 
                   1298: Tue Aug 23 09:45:05 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1299: 
                   1300:        * output-sparc.c (output_scc_insn): New function.
                   1301: 
                   1302:        * expr.c (expand_builtin, alloca): Round result of alloca
                   1303:        up to a multiple of STACK_BYTES.
                   1304: 
                   1305:        * toplev.c (compile_file): Default main_input_filename is cc1 input.
                   1306: 
                   1307:        * tm-i386.h (FUNCTION_BOUNDARY): 32 avoids extra prefetch.
                   1308: 
                   1309:        * i386.md (movdi, movdf): Add `&' where needed in constraints.
                   1310: 
                   1311: Mon Aug 22 11:57:51 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1312: 
                   1313:        * symout.c (symout_finish): Allocate typevector after the symout_types.
                   1314: 
                   1315: Sun Aug 21 16:10:54 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1316: 
                   1317:        * tm-3b1.h (ASM_FORMAT_PRIVATE_NAME): Use a `_' as well as `%'.
                   1318: 
                   1319:        * expr.c (expand_expr): Typo setting MODE for MAX_EXPR.
                   1320: 
                   1321:        * Makefile (stage*): If ln fails, copy gnulib to stage*.
                   1322:        (realclean): Do `clean' and then some.
                   1323:        (install): new var USER_H specifies headers to copy.
                   1324: 
                   1325:        * c-typeck.c (build_binary_op_nodefault): LT_EXPR, etc.
                   1326:        on ptr vs int failed to set result_type.
                   1327:        (build_conditional_expr): Don't replace nonzero int
                   1328:        with null_pointer_node.
                   1329: 
                   1330:        * combine.c (remove_links, try_distrib): New fns.
                   1331:        (subst): New simplifications for ZERO_EXTEND, SIGN_EXTEND.
                   1332:        (combine_instructions): Call try_distrib.
                   1333:        (FAKE_EXTEND_SAFE_P): Allow SUBREGs.
                   1334: 
                   1335:        * m68k.md (non-FPA pattern for floatsisf2): Typo, had DF for SF.
                   1336: 
                   1337: Sat Aug 20 12:04:37 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1338: 
                   1339:        * integrate.c (copy_address): Variant of copy_rtx_and_substitute.
                   1340:        (copy_rtx_and_substitute): Use copy_address for MEM address that
                   1341:        doesn't satisfy memory_address_p.
                   1342: 
                   1343:        * reload.c (find_reloads): If force_reload set, don't set WIN
                   1344:        for a MEM even if `m', `o' or `g' in constraint.
                   1345: 
                   1346:        * i386.md (expendqihi2): Typo in asm template.
                   1347: 
                   1348:        * toplev.c (rest_of_compilation): Call clear_const_double_mem.
                   1349:        * varasm.c (init_const_rtx_hash_table): Don't call it here.
                   1350:        (immed_real_const): Don't record the rtx in the REAL_CST node.
                   1351:        (force_const_double_mem, clear_const_double_mem): Use cc0_rtx, not 0,
                   1352:        as flag for a CONST_DOUBLE not on the chain.
                   1353: 
                   1354:        * cccp.c (handle_directive): If traditional, do scan strings
                   1355:        but accept unterminated ones.
                   1356:        (collect_expansion): -traditional: Don't recognize comments in strings.
                   1357:        Stringify arguments that appear within strings.
                   1358:        (skip_quoted_string): -traditional: Always exit at newline.
                   1359:        (macroexpand): -traditional: Don't put `"'s around stringified arg.
                   1360:        (macarg): Set stringified_length accordingly.
                   1361: 
                   1362:        * c-decl.c (duplicate_decls): Avoid error redeclaring fcn after
                   1363:        implicit decl if -traditional.
                   1364: 
                   1365:        * toplev.c (announce_function, report_error_function):
                   1366:        Change communication logic between these fcns.
                   1367: 
                   1368:        * c-decl.c (lang_decode_options): Handle -Wall here.
                   1369:        * toplev.c (main): not here.
                   1370: 
                   1371:        * tm-bsd386.h: Don't include tm-i386.h--be like tm-att386.h
                   1372: 
                   1373: Fri Aug 19 11:08:36 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1374: 
                   1375:        * config-sun4.h: If sparc, include config-sparc.h.
                   1376:        Never include alloca.h.
                   1377: 
                   1378:        * tm-m68k.h (TARGET_SWITCHES): Define `-mc68020', `-mc68000'.
                   1379: 
                   1380:        * c-decl.c (init_decl_processing): If traditional, use signed sizetype.
                   1381: 
                   1382:        * gcc.c (main): Use stderr for printing version.
                   1383: 
1.1.1.6   root     1384: Thu Aug 18 14:42:36 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1385: 
                   1386:        * Version 1.26 released.
                   1387: 
                   1388:        * m68k.md (movsi): Constraint change for fpa regs.
                   1389: 
                   1390:        * reload1.c (choose_reload_targets): Clear reg_reloaded_contents
                   1391:        for all regs of a multi-reg group.
                   1392: 
                   1393:        * reload.c (find_equiv_reg): HARD_REGNO_NREGS wants mode, not size.
                   1394:        Check properly for overlap against multiword reload regs.
                   1395: 
                   1396: Tue Aug 16 14:54:18 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1397: 
                   1398:        * varasm.c, expr.c (immed_double_const): immed_real_const_2 renamed.
                   1399: 
                   1400:        * tm-i386.h (SFVALUE): Should be `double'.
                   1401:        * tm-i386v.h (SFVALUE): Don't override it.
                   1402: 
                   1403:        * tm-i386.h (ASM_OUTPUT_ASCII): Don't define it.
                   1404:        * tm-att386.h: Definition moved here.
                   1405: 
                   1406:        * tm-bsd386.h: New file, for Sequent.
                   1407:        * tm-seq386.h: New file, for Sequent.
                   1408:        * config-i386.h: New file, for Sequent.
                   1409: 
                   1410:        * expr.c (push_block): Take account of STACK_POINTER_OFFSET.
                   1411:        (expand_call): Therefore need not do so here.
                   1412: 
                   1413:        * optabs.c (expand_fix): Typo if going via DImode.
                   1414: 
                   1415:        * reload1.c (choose_reload_targets): Don't * reload_reg_rtx if 0.
                   1416: 
                   1417: Mon Aug 15 01:11:49 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1418: 
                   1419:        * integrate.c (copy_for_inline): Don't try copying 0-length vector.
                   1420:        (copy_rtx_and_substitute): Likewise.
                   1421: 
                   1422:        * m68k.md (andsi3): use clrw instead of andw #0.
                   1423: 
                   1424:        * print-tree.c (walk): Don't omit permanent nodes reach from temps.
                   1425: 
                   1426:        * m68k.md (zero_extend...): Reinstall the old zero-extend insns
                   1427:        without names, so they can help the combiner.
                   1428: 
                   1429:        * expr.c (expand_expr): Don't use hard regs as subtargets.
                   1430:        * combine.c (FAKE_EXTEND_SAFE_P): Always consider MEMs safe.
                   1431:        * reload.c (find_reloads): For (SUBREG (MEM ...)) set force_reload.
                   1432: 
                   1433:        * c-parse.y (redescape): Don't warn for `\('.
                   1434: 
                   1435:        * reload.c (find_reloads_address): #if was backwards.
                   1436: 
                   1437: Sun Aug 14 16:52:22 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1438: 
                   1439:        * c-typeck.c (shorten_compare): Change switch to chain of ifs.
                   1440: 
                   1441:        * tm-ns32k.h (PRINT_OPERAND): CONST_DOUBLE contains a double
                   1442:        even if it's SFmode.
                   1443:        (FUNCTION_PROLOGUE): If MAIN_FUNCTION_PROLOGUE defined, run it.
                   1444: 
                   1445:        * cccp.c (file_buf): Rename field `free' to `free_ptr'.
                   1446: 
                   1447:        * Makefile (ALLOCA, MALLOC, LIBDEPS): New variables for easier
                   1448:        customization.  Executables depend on LIBDEPS instead of OBSTACK1.
                   1449:        (cccp): Deps and libs now work like the others.
                   1450: 
                   1451:        * output-i386.c (notice_update_cc): Rewritten for clarity.
                   1452: 
                   1453:        * tm-i386.h (OUTPUT_JUMP): If CC_IN_OVERFLOW, abort.
                   1454: 
                   1455:        * recog.c (push_operand): Test for stack_pointer_rtx.
                   1456: 
                   1457:        * integrate.c (copy_rtx_and_substitute): Don't submit push-operands
                   1458:        to `memory_address'--it would lose on machines where pushing is
                   1459:        a special insn, not an addressing mode.
                   1460: 
                   1461:        * output-i386.c (top_dead_p): No more redundancy--that didn't work.
                   1462:        Now one method if optimized, one for call_insns if noopt, one for
                   1463:        other insns if noopt.
                   1464:        (call_top_dead_p): fp_top_dead_p renamed
                   1465:        and only the call-insn clause remains.
                   1466: 
                   1467:        * i386.md (cmpsf, cmpdf): Output was backwards.
                   1468:        (", tstsf, tstdf): Set CC_IN_80387.
                   1469:        (incb pattern): Restrict allowable registers.
                   1470:        (movsf, movdf): Call top_dead_p only when absolutely necessary.
                   1471:        (call_value): Use top_dead_p, not subroutine.
                   1472: 
                   1473: Sat Aug 13 15:19:23 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1474: 
                   1475:        * stupid.c (stupid_life_analysis): If only 1 reg class,
                   1476:        call stupid_find_reg only once.
                   1477: 
                   1478:        * stmt.c (expand_function_start):
                   1479:        Clear current_function_pretend_args_size.
                   1480: 
                   1481:        * expr.c (store_constructor): If target is hard reg, go via a pseudo.
                   1482: 
                   1483:        * varasm.c (real_constant_chain): Now static in this file.
                   1484:        (force_const_double_mem): Put R on chain if not already on.
                   1485:        (clear_const_double_mem): Set XEXP (,2) to 0;
                   1486:        also clear real_constant_chain and the chain links.
                   1487:        * emit-rtl.c (init_emit_once): Put 0 in XEXP (,2) of {d,f}const0_rtx.
                   1488:        * cse.c (canon_hash): For CONST_DOUBLE, ignore elts other than 0,1.
                   1489: 
                   1490: Fri Aug 12 11:48:38 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1491: 
                   1492:        * reload1.c (order_regs_for_reload): Handle REG_ALLOC_ORDER more spots.
                   1493: 
                   1494:        * global-alloc.c (find_reg): error handling REG_ALLOC_ORDER;
                   1495:        also error skipping regs known to be hopeless.
                   1496:        * local-alloc.c (find_free_reg): error skipping hopeless regs.
                   1497:        * stupid.c (stupid_find_reg): likewise.
                   1498: 
                   1499:        * local-alloc.c (qty_compare_1): typo, had q1 for q2.
                   1500: 
                   1501:        * expr.c (expand_expr): Don't use supplied target when optimizing
                   1502:        arithmetic using a comparison or conditional; that target could be
                   1503:        needed for the result of the comparison.
                   1504: 
                   1505:        * reload1.c (reload): Don't set reg_equiv_constant for hard regs.
                   1506: 
                   1507:        * stupid.c (stupid_life_analysis): Ignore reg R if regno_reg_rtx[R]==0.
                   1508: 
                   1509:        * symout.c (symout_finish): Use perm. links in permanent_fwd_refs.
                   1510: 
                   1511:        * i386.md (movhi, movqi): Check no_labels_between_p.
                   1512: 
                   1513: Thu Aug 11 10:44:46 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1514: 
                   1515:        * c-parse.y (yylex): Out-of-range float is just a warning.
                   1516: 
                   1517:        * tm-gnx-v3.h: New file for Genix.
                   1518:        * ns32k.md (movsi, call, call_value): GNX_V3 conditionals.
                   1519:        * tm-ns32k.h (PRINT_OPERAND_ADDRESS): Changes for Genix.
                   1520: 
                   1521:        * ns32k.md (insv patterns): Operand 0 is read-write.
                   1522: 
                   1523:        * i386.md (tstsf, tstdf): Don't push the arg if already in st(0).
                   1524: 
                   1525:        * varasm.c (output_constant_def): If EXP is permanent, the rtl is too.
                   1526: 
                   1527:        * tm-*.h (ASM_OUTPUT_{LOCAL,COMMON}): New 4th arg, rounded size
                   1528:        vs unrounded size.
                   1529:        * varasm.c (assemble_variable): Pass new arg.
                   1530:        * symout.c (symout_init): Likewise.
                   1531: 
                   1532:        * cccp.c (rescan): Don't let char const cross lines.
                   1533:        (skip_quoted_string, macarg1, discard_comments): Likewise.
                   1534: 
                   1535:        * expr.c (expand_expr, VAR_DECL case): handle flag_force_addr.
                   1536: 
                   1537:        * tm-i386v.h (TAREGT_DEFAULT): Assume 80387.
                   1538:        * config-i386v.h (alloca): Use __builtin_alloca under GNU C.
                   1539: 
                   1540: Wed Aug 10 11:23:06 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1541: 
                   1542:        * reload.c (find_reloads): Alternative loses
                   1543:        if it has no regs for a reg operand.
                   1544: 
                   1545:        * tm-sun3.h (STARTFILE_SPEC): Define, for fpa's sake.
                   1546:        * tm-m68k.h: New hard regs, reg classes, reg class letters,
                   1547:        target flag and switch, operand syntax and CC handling for fpa.
                   1548:        * m68k.md: Add fpa insn patterns.
                   1549:        * output-m68k.c (standard_SunFPA_constant_p): New fn.
                   1550:        (output_move_const_{single,double}): Handle fpa regs.
                   1551:        (singlemove_string): Handle fpa regs.
                   1552: 
                   1553:        * stmt.c (fixup_memory_subreg): Result had wrong mode.
                   1554: 
                   1555:        * ns32k.md (insv patterns): Adjust bit-number along with address.
                   1556: 
                   1557:        * sparc.md (negdf2, absdf2): Order of the words was backwards.
                   1558: 
                   1559:        * reload1.c (new_spill_reg): End confusion about meaning of 1st arg.
                   1560:        Arg counted_for_nongroups had wrong type.
                   1561: 
                   1562:        * tm-m68k.h (FUNCTION_{PRO,EPI}LOGUE): Round frame size to word bdry.
                   1563: 
                   1564: Tue Aug  9 07:53:59 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1565: 
                   1566:        * tm-i386.h (ASM_OUTPUT_ASCII): Don't lose the sign bit.
                   1567: 
                   1568:        * tm-i386v.h (STARTFILE_SPEC, LIB_SPEC): Use crt1.o, crtn.o.
                   1569: 
                   1570:        * stmt.c (fixup_var_refs_1): fixup all memory subregs.
                   1571: 
                   1572:        * reload1.c (choose_reload_targets): Don't strip paradoxical
                   1573:        subregs from values to be reloaded.
                   1574: 
                   1575:        * cccp.c: Comment out text after #endif.
                   1576: 
                   1577:        * c-parse.y (init): Allow empty braces as init; warn if pedantic.
                   1578: 
                   1579:        * c-decl.c: Move C-specific options from toplev.c.
                   1580:        * c-tree.h: Move their externs from flags.h.
                   1581:        * c-decl.c (lang_decode_option): New fn called by `main'.
                   1582:        * toplev.c (sorry, really_sorry): New error reporting fns.
                   1583:        * c-decl.c (language_string): New var, name of this language.
                   1584: 
                   1585:        * c-parse.y: Don't include flags.h.
                   1586:        * dbxout.c: Do include it.
                   1587: 
                   1588:        * dbxout.c (dbxout_type): Handle function fields and static fields
                   1589:        and basetypes.  Handle METHOD_TYPE and REFERENCE_TYPE.
                   1590:        Abort on unexpected tree code.
                   1591:        (dbxout_args): New fn to output prototype arg types.
                   1592:        (everywhere): Use IDENTIFIER_LENGTH instead of strlen.
                   1593:        (dbxout_type_name): Cleanup; avoid strlen.
                   1594: 
                   1595:        * local-alloc.c (reg_is_set): Don't call {post_,}mark_life for pseudos.
                   1596: 
                   1597:        * tree.h (TYPE_BASECLASSES): New field in type nodes.
                   1598: 
                   1599:        * ns32k.md (insv patterns): Was adjusting the address wrong.
                   1600: 
                   1601:        * c-decl.c (grokdeclarator): Just a warning for inline varargs fn.
                   1602: 
                   1603: Mon Aug  8 08:16:46 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1604: 
                   1605:        * varasm.c (immed_real_const_2): Guts of creating a CONST_DOUBLE.
                   1606:        * expr.c (expand_expr): Use that for 64-bit int constants.
                   1607: 
                   1608:        * loop.c (invariant_p): Don't check x->unchanging; it's not safe.
                   1609: 
                   1610:        * c-typeck.c (build_indirect_ref): Handle flag_volatile here
                   1611:        so that it propagates to component_refs.
                   1612:        * expr.c (expand_expr): No need to handle it here.
                   1613: 
                   1614:        * integrate.c (save_for_inline, expand_inline_function):
                   1615:        Set up insn_map to record mapping of old uids to copied insns.
                   1616:        (copy_for_inline, copy_rtx_and_substitute): Map 'u' refs via insn_map.
                   1617: 
                   1618:        * emit-rtl (emit_label, emit_barrier): Return what was emitted.
                   1619: 
                   1620:        * sdbout.c (sdbout_filename): Split off from sdbout_init.
                   1621:        * tm-encore.h, tm-3b1.h, tm-vaxv.h, tm-att386.h (ASM_FILE_START):
                   1622:        Call sdbout_filename.
                   1623: 
                   1624:        * toplev.c: Better messages for invalid options.
                   1625: 
                   1626:        * tm-m68k.h (PRINT_OPERAND_ADDRESS): Handle labelref+basereg.
                   1627: 
                   1628:        * tm-3b1.h (PUT_SDB_DIM): Override sdbout's definition.
                   1629:        (ASM_FORMAT_PRIVATE_NAME): Override tm-hp...s definition.
                   1630:        (PUT_SDB_PLAIN_DEF): Prepend `~' to specified name.
                   1631:        (SDB_GENERATE_FAKE): Prepend `~'.
                   1632: 
                   1633:        * gcc.c: Include config.h before obstack.h.
                   1634: 
                   1635: Sun Aug  7 11:17:56 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1636: 
                   1637:        * stor-layout.c (layout_decl): Do nothing with CONST_DECL.
                   1638:        Treat FRIEND_DECLs like variables.
                   1639:        (layout_record): Handle VAR_DECLs and FUNCTION_DECLs in the fieldlist.
                   1640:        Handle basetypes (almost like fields).
                   1641:        (layout_type): Handle REFERENCE_TYPE and METHOD_TYPE.
                   1642: 
                   1643:        * tree.c (temp_tree_cons): New fn.
                   1644:        (array_type_nelts, simple_cst_equal): New fns.
                   1645:        (lvalue_p): CALL_EXPR is an lvalue if it returns REFERENCE_TYPE.
                   1646:        () Manage TYPE_REFERENCE_TO.
                   1647:        (TYPE_HASH_SIZE): Bigger.
                   1648:        (type_list_equal): Compare the TREE_PURPOSE fields.
                   1649:        (build_reference_type, build_method_type): New fns.
                   1650: 
                   1651:        * stmt.c (block_stack): Add field `cleanups' to each element.
                   1652:        (expand_{start,end}_bindings, expand_decl): Update that field.
                   1653:        (stack_block_stack): Now includes blocks that have cleanups.
                   1654:        (goto_fixup_chain): Add field `cleanup_list_list'.
                   1655:        (expand_goto_internal): Execute cleanups for blocks being exited.
                   1656:        (expand_fixup): Make a fixup if any block has cleanups.
                   1657:        (fixup_gotos): New args CLEANUPS and DONT_JUMP_IN.
                   1658:        Execute cleanups for blocks being exited, or add to cleanup_list_list.
                   1659:        (expand_end_bindings): New arg DONT_JUMP_IN.  Execute any cleanups.
                   1660:        (expand_decl): New arg CLEANUP.
                   1661:        (expand_cleanups, fixup_cleanups): New functions.
                   1662:        * c-decl.c: Calls to expand_decl pass new arg.
                   1663:        * c-parse.y: Calls to expand_end_bindings pass new arg.
                   1664: 
                   1665:        * stmt.c (expand_return): Handle INIT_EXPR, or bare RESULT_DECL.
                   1666: 
                   1667:        * stmt.c (case_stack): Add field `has_default' to each element.
                   1668:        (pushcase,expand_end_case): Maintain and use that field.
                   1669: 
                   1670:        * stmt.c (pushcase): Handle RANGE_EXPR cases.
                   1671:        (pushcase_range): Create RANGE_EXPR cases.
                   1672: 
                   1673:        * final.c (final): Always pass 3 args to ASM_OUTPUT_CASE_END.
                   1674:        * tm-3b1.h: Delete offending spaces.
                   1675: 
                   1676: Fri Aug  5 16:17:16 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1677: 
                   1678:        * integrate.c (copy_rtx_and_substitute): Don't make fp+reg+const
                   1679:        without an intermediate temporary reg.
                   1680: 
                   1681:        * print-tree.c (dump): Don't print an identifier's chain.
                   1682: 
                   1683:        * toplev.c (compile_file): Treat `.i' suffix like `.co'.
                   1684: 
                   1685:        * gcc.c: New config macro CC1_SPEC: extra switches for cc1.
                   1686:        Make a new spec for `.i' files.
                   1687: 
                   1688:        * c-decl.c (pushdecl, finish_decl): Delete duplicate tests.
                   1689: 
                   1690:        * varargs.h: Maybe include va-sparc.h or va-spur.h.
                   1691:        * va-sparc.h: New file.
                   1692:        * va-spur.h: renamed file.
                   1693: 
                   1694:        * tree.h ({TYPE,DECL}_LANG_SPECIFIC): Types and decls can point to
                   1695:        language-specific structures containing other info.
                   1696:        * print-tree.c (dump): Hooks for printing the language-specific
                   1697:        data in types and decls.
                   1698: 
                   1699: Thu Aug  4 08:54:30 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1700: 
                   1701:        * tree.def: Add some tree codes for C++.
                   1702: 
                   1703:        * Rename files: parse.[yh] -> c-parse.[yh], decl.c -> c-decl.c,
                   1704:        typecheck.c -> c-typeck.c.
                   1705:        Part of tree.c split out to c-convert.c.
                   1706: 
                   1707:        * expr.c (push_block): No longer static.
                   1708:        (expand_expr): Handle REFERENCE_EXPR and INIT_EXPR.
                   1709:        (expand_call): Turn a METHOD_TYPE to a FUNCTION_TYPE.
                   1710:        This is probably not all that is required.
                   1711: 
                   1712:        * parse.y (yylex): Use p->rid to check for `signed' and `inline'.
                   1713: 
                   1714:        * tm-sparc.h (ASM_OUTPUT_SOURCE_LINE): typo.
                   1715: 
                   1716:        * sparc.md: Add a pattern for andcc.
                   1717:        (cmpsf): Clobber reg 32 in DFmode.
                   1718:        (branches): There are no unsigned floating branches; abort.
                   1719:        (bgt): Correct name of floating variant.
                   1720:        (mov?i): Load small constants via mov.
                   1721:        (movdf for constants): Use mov, not add, to move regs.
                   1722:        (movsf, floatsi*, fix*): Simplify reg-to-reg-via-mem move generation.
                   1723:        (trunc*): Use mov, not or, to move regs.
                   1724:        (negsi2, one_cmplsi2): Avoid "neg" and "not" assembler syntax.
                   1725:        (call...): Generate "call" insns; handle #-reg-parms value.
                   1726:        * Define some peepholes for return insns.
                   1727: 
                   1728:        * tm-sparc.h (TARGET_SUN_ASM): New target flag.
                   1729:        (TARGET_DEFAULT): Now 1.
                   1730:        (FRAME_POINTER_REQUIRED): Now 1.
                   1731:        (STARTING_FRAME_OFFSET): Now -16.
                   1732:        (LEGITIMATE_CONSTANT_P): Only CONST_DOUBLEs fail.
                   1733:        (FUNCTION_{PROLOGUE,EPILOGUE}): Rewritten.
                   1734: 
                   1735:        * output-sparc.c (small_int): Test for int that mov can load.
                   1736:        (singlemove_string): Use mov, not add.
                   1737:        (output_move_double): Changes for overlap and for use of ldd, std.
                   1738:        (output_fp_move_double): Use ldd, std when safe.
                   1739:        (make_f0_contain_0): Simplify.
                   1740: 
                   1741:        * integrate.c (expand_inline_function): Some special CALL_INSN
                   1742:        handling no longer needed due to REG_FUNCTION_VALUE_P.
                   1743: 
                   1744:        * m68k.md (movqi): Constraints allow moving areg to areg.
                   1745: 
1.1.1.5   root     1746: Wed Aug  3 08:29:31 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1747: 
1.1.1.6   root     1748:        * Version 1.25 released.
                   1749: 
1.1.1.5   root     1750:        * integrate.c (expand_inline_function): Don't let MEM be inline_target.
                   1751: 
                   1752: Tue Aug  2 09:13:37 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1753: 
                   1754:        * integrate.c (INTEGRATE_THRESHOLD): New macro, default dfn here.
                   1755:        (function_cannot_inline_p): Use it.
                   1756: 
                   1757:        * rtl.h (REG_FUNCTION_VALUE_P): New macro.
                   1758:        * stmt.c (expand_function_start): Set that flag in the return reg.
                   1759:        * integrate.c (expand_inline_function, copy_rtx_and_substitute):
                   1760:        Test that flag to test for the return value.
                   1761:        * expmed.c (expand_fixed_bit_field, expand_mult, expand_divmod): ditto.
                   1762:        FUNCTION_VALUE_OUTGOING_REGNO_P no longer needed.
                   1763: 
                   1764: Mon Aug  1 02:46:08 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1765: 
                   1766:        * integrate.c (copy_rtx_and_substitute): If NO_FUNCTION_CSE,
                   1767:        don't break out constant fcn addresses here.
                   1768: 
                   1769:        * expmed.c (expand_fixed_bit_field): Tests of FUNCTION_VALUE_REGNO_P
                   1770:        were backwards.
                   1771: 
                   1772: Sun Jul 31 13:10:07 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   1773: 
                   1774:        * recog.c (indirect_operand): New function.
                   1775: 
                   1776:        * output-i386.c (print_operand): define %*. eliminate %s.
                   1777:        (fp_top_dead_p): In nonopt case, skip stack-adjusts while looking
                   1778:        for the insn that uses the function value.
                   1779: 
                   1780:        * varasm.c (text_section, data_section): New functions.
                   1781:        Replaced explicit printfs elsewhere with calls to them.
                   1782:        * final.c (final_start_function): Use these fns.
                   1783:        * sdbout.c (sdbout_one_type): Use text_section.
                   1784:        * tm-att386.h (ASM_OUTPUT_LOCAL): Use data_section.
                   1785: 
                   1786:        * expr.c (prepare_call_address): Don't pass const via reg if no -O.
                   1787: 
                   1788:        * tm-sparc.h (FUNCTION_{PROLOGUE,EPILOGUE}) Round the size of saved
                   1789:        registers.  Fix bug counting saved registers.
                   1790: 
                   1791:        * tm-sparc.h (ASM_OUTPUT_SOURCE_LINE): Define this macro.
                   1792: 
                   1793:        * tm-sparc.h (DEFAULT_SIGNED_CHAR): Now 1.
                   1794: 
                   1795:        * expr.c (expand_builtin, alloca case): Adding stack offset needs
                   1796:        special code if TARGET is a MEM.
                   1797: 
                   1798:        * dbxout.c (dbxout_init): Define Ltext: after the reference to it.
                   1799: 
                   1800:        * tm-3b1.h (ASM_OUTPUT_CASE_LABEL): `short 0' triggers assembler bug;
                   1801:        `short L%nn-L%nn' supposedly works.
                   1802: 
                   1803: Sat Jul 30 00:25:52 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1804: 
                   1805:        * sparc.md (floatsidf2): Minor change in output.
                   1806:        (fix_trunc{sf,df}si2): Similar.
                   1807: 
                   1808:        * output-sparc.c (output_fp_move_double): Minor change in output.
                   1809: 
                   1810:        * stmt.c (assign_parms): Don't count stack space for struct value
                   1811:        address if the function does not have one.
                   1812: 
                   1813:        * sdbout.c: Output .dim's and total size for arrays.
                   1814:        Detect bit-fields properly.
                   1815:        Changed handling of structure tags.
                   1816: 
                   1817:        * reload1.c (new_spill_reg): counted_for_nongroups is a new arg;
                   1818:        store 1 in it if this reg is needed for max_nongroups.
                   1819: 
                   1820:        * reload1.c (choose_reload_targets): Allow inheritance of DFmode
                   1821:        if it needs only one register.
                   1822: 
                   1823:        * reload1.c (choose_reload_targets): Delete the death-note from the
                   1824:        store-insn of an inherited reload if PRESERVE_DEATH_INFO_REGNO_P.
                   1825: 
                   1826:        * reload.c (push_reload): Crash if PREFERRED_RELOAD_CLASS is NO_REGS.
                   1827:        (find_reloads): Smarter handling of forcing CONST_DOUBLE into mem.
                   1828:        Check PREFERRED_RELOAD_CLASS & do this if it says NO_REGS.
                   1829: 
                   1830:        * reload.c (subst_indexed_address): Handle case with 2 regs
                   1831:        and no constant term.
                   1832: 
                   1833:        * local-alloc.c: New variable qty_n_refs, set from reg_n_refs
                   1834:        and tested in qty_compare{,_1}.
                   1835:        (combine_regs): Update qty_n_refs.
                   1836:        Update qty_preferred_or_nothing more intelligently.
                   1837: 
                   1838:        * regclass.c (regclass, reg_class_record, record_address_regs):
                   1839:        Count the number of refs to each reg along with the costs,
                   1840:        and use it when computing the preferred_or_nothing flag.
                   1841:        (Can't use reg_n_refs since that is weighted by loop depth).
                   1842: 
                   1843:        * global-alloc.c (global_alloc): Enable test of OVERLAPPING_REGNO_P
                   1844:        for setting no_global_alloc_regs.
                   1845: 
                   1846:        * expr.c (prepare_call_address): Use force_reg, so it gets a REG_EQUIV.
                   1847: 
                   1848:        * optabs.c (can_{fix,float}_p): Return enum insn_code, not a function.
                   1849:        (init_{fix,float}_tab): Store enum insn_code's in fixtab and floattab.
                   1850:        (expand_{fix,float}): Change calls to can_{fix,float}_p.
                   1851:        Also, use emit_unop_insn to make the actual insns.
                   1852: 
                   1853: Fri Jul 29 02:42:40 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1854: 
                   1855:        * cccp.c (initialize_char_syntax): If dollars_in_identifiers is 0,
                   1856:        set entries for `$' to 0.
                   1857:        Set entries to 1 rather than incrementing them.
                   1858: 
                   1859: Tue Jul 26 11:14:22 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1860: 
                   1861:        * varasm.c (assemble_variable): Make SDB output only if top-level.
                   1862: 
                   1863:        * local-alloc.c (reg_is_set): Arg to mark_life is regno, not qty.
                   1864: 
                   1865:        * output-ns32k.c (print_operand_address): New flag SEQUENT_BASE_REGS
                   1866:        * tm-sequent.h: Define that flag.
                   1867: 
                   1868:        * Makefile: add some missing deps.
                   1869: 
                   1870:        * tm-encore.h (ASM_FILE_START): Changed to do nothing.
                   1871: 
                   1872:        * sdbout.c (sdbout_init): Fix two dumb errors.
                   1873: 
                   1874:        * sdbout.c (sdbout_end_epilogue): No longer takes arg.
                   1875:        Examine current_function_decl here, not in caller.
                   1876:        * final.c: Call changed.
                   1877: 
                   1878: Mon Jul 25 01:32:54 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1879: 
                   1880:        * stor-layout.c (layout_record): Handle PCC_BITFIELD_TYPE_MATTERS.
                   1881: 
                   1882:        * tm-3b1.h (__PTR_TO_INT, __INT_TO_PTR): Define these, to alter
                   1883:        parts of obstack.h.
                   1884: 
                   1885: Sun Jul 24 17:56:53 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1886: 
                   1887:        * Padding for an arg may now go below or above it; new macro
                   1888:        FUNCTION_ARG_PADDING can now choose which, or can inhibit padding.
                   1889:        This makes for compatibility with PCC.
                   1890:        * expr.h: Default definition of that macro.
                   1891:        * expr.c (emit_push_insn): Put the padding above or below.
                   1892:        (expand_call): Don't count the padding if none wanted.
                   1893:        * stmt.c (assign_parms): Adjust parm stack addr if padded below.
                   1894:        Don't count the padding if none wanted.
                   1895:        * tm-3b1.h: Define FUNCTION_ARG_PADDING: no padding for > 4 bytes.
                   1896: 
                   1897:        * final.c (alter_subreg): Now returns the altered value
                   1898:        (but may still modify the original structure).
                   1899:        Handles (SUBREG:DI (CONST_DOUBLE:DF...)) by returning the CONST_DOUBLE.
                   1900: 
                   1901:        * m68k.md (DImode push): now allows `F'.
                   1902:        * ns32k.md (movdi): now allows `F'.
                   1903: 
                   1904:        * tm-m68k.h (FIX_FRAME_POINTER_ADDRESS):
                   1905:        Handle indexed references to frame pointer.
                   1906:        * tm-i386.h, tm-m88k.h, tm-sparc.h: Likewise.
                   1907: 
                   1908:        * cse.c (predecide_loop_entry): Must search for the loop top label.
                   1909: 
                   1910: Sat Jul 23 08:53:01 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   1911: 
                   1912:        * parse.y (yylex): typo in wide strings.
                   1913: 
                   1914:        * tm-vaxv.h, config-vaxv.h: New files for sysV on vax.
                   1915: 
                   1916:        * config-sun4.h: If sparc and not compiling with GCC, include alloca.h.
                   1917: 
                   1918: Fri Jul 22 02:38:02 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   1919: 
                   1920:        * tree.c (build_real_from_int_cst): CHECK_FLOAT_VALUE at proper place.
                   1921: 
                   1922:        * tm-hp9k320.h ({TEXT,DATA}_SECTION_ASM_OP): Should not include a tab.
                   1923:        * final.c (final_start_function): Don't output a tab before those.
                   1924: 
                   1925:        * sdbout.c (PUT_SDB_EPILOGUE_END): New macro.
                   1926:        * sdbout.c (sdbout_end_epilogue): New function to output the C_EFCN.
                   1927:        Like former sdbout_mark_end_function.  Uses that macro.
                   1928:        * final.c (final_end_function): Call that function.
                   1929:        * tm-3b1.h: Override PUT_SDB_EPILOGUE_END like the other PUT_SDB...
                   1930: 
                   1931:        * tm-3b1.h (PRINT_OPERAND_ADDRESS, ASM_OUTPUT_INTERNAL_LABEL,
                   1932:        ASM_OUTPUT_CASE_{LABEL,END}): Put a % in names of internal labels.
                   1933:        (ASM_GENERATE_INTERNAL_LABEL, ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT):
                   1934:        New macros, for same reason.
                   1935:        (FUNCTION_PROFILER): New macro, for % and also to put addr in a0.
                   1936: 
                   1937:        * final.c (output_source_line): For fcn's first line, use lineno 1.
                   1938:        * sdbout.c (sdbout_end_function): Clear sdb_begin_function_line
                   1939:        so can recognize first line of next function.
                   1940: 
                   1941:        * sdbout.c (sdbout_init): Output the .file pseudo here.
                   1942:        * tm-3b1.h, tm-att386.h (ASM_FILE_START): Don't do it here.
                   1943: 
                   1944:        * sdbout.c (PUT_SDB_VAL): Output leading tab, like the other macros.
                   1945:        * tm-3b1.h (PUT_SDB_VAL): Likewise.
                   1946: 
                   1947:        * regclass.c (regclass): Cast enums to int, not char.
                   1948:        * varasm.c (record_constant): Likewise.  Avoids 3b1 PCC bug.
                   1949: 
                   1950:        * decl.c (pushdecl): Better choice of error message for extern/static.
                   1951: 
                   1952:        * emit-rtl.c: Do look for STRUCT_VALUE_INCOMING_REGNUM.
                   1953: 
                   1954: Thu Jul 21 02:13:03 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1955: 
                   1956:        * cse.c (canon_hash): CONST_INT case failed to add to prev. value
                   1957:        of HASH; was inconsistent with cse_insn mem address hashing.
                   1958: 
                   1959:        * m68k.md (divide insns): Alternate 3B1 syntax for `swap' insn.
                   1960: 
                   1961: Wed Jul 20 18:27:10 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1962: 
                   1963:        * m68k.md: In shift-by-24 patterns, rejects autoincrement memrefs
                   1964:        since they are mode-dependent.
                   1965: 
                   1966: Tue Jul 19 13:01:38 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1967: 
                   1968:        * parse.y (check_newline): Handle #ident by writing .ident to output.
                   1969:        * cccp.c: Don't handle #ident; delete IDENT_DIRECTIVE conditionals.
                   1970: 
                   1971:        * stmt.c (expand_end_case): In compares, put constant arg second.
                   1972: 
                   1973:        * jump.c (jump_optimize): Delete conditional jump if followed by
                   1974:        an unconditional jump to the same place.
                   1975: 
                   1976: Mon Jul 18 17:49:13 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1977: 
                   1978:        * emit-rtl.c (init_emit_once): Now STRUCT_VALUE_INCOMING is an
                   1979:        expression for an rtx.  It can make a MEM.  Likewise STRUCT_VALUE
                   1980:        for outgoing structure value addresses.
                   1981: 
                   1982:        * stmt.c (assign_parms): If incoming struct addr on stack, leave room.
                   1983:        * expr.c (expand_call): If outgoing addr on stack, push it like an arg.
                   1984: 
                   1985:        * PROMOTE_PROTOTYPES means if proto says `char', pass `int'.
                   1986:        * decl.c (get_parm_info): Alter DECL_ARG_TYPE to do this.
                   1987:        * typecheck.c (actualparameterlist): Convert value for this.
                   1988:        * tm-m68k.h: Define PROMOTE_PROTOTYPES.
                   1989: 
                   1990: Sun Jul 17 14:25:47 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1991: 
                   1992:        * jump.c (jump_optimize): peephole can delete insns following INSN.
                   1993:        Set NEXT after peephole.
                   1994: 
                   1995:        * decl.c (finish_decl): Always restart perm alloc if global.
                   1996: 
                   1997:        * stmt.c (assign_parms): When a float is passed as double, store the
                   1998:        float in low-numbered word.  Avoids trouble with parm_map in integrate.
                   1999: 
                   2000:        * vax.md: New pattern for decrement and compare against -1.
                   2001: 
                   2002: Sat Jul 16 14:18:00 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2003: 
                   2004:        * decl.c (pushdecl): Ignore previous decl if it's really an error_mark.
                   2005: 
                   2006:        * stmt.c (expand_start_case): Make sure case_stmt.start is a NOTE.
                   2007: 
                   2008:        * combine.c (subst): In the simplification for
                   2009:        (set (zero_extract ...) (and/or/xor (zero_extract ...) const)),
                   2010:        require same memory location in both extracts.
                   2011: 
                   2012:        * *386*: New files.
                   2013: 
                   2014:        * cse.c (fold_rtx): Save time in memory address if it didn't change.
                   2015:        Don't replace cheaper expression with coslier one.
                   2016:        (cse_insn): Reenable generation of REG_WAS_0.  It wasn't obsolete.
                   2017: 
                   2018:        * cccp.c: `ident' has 5 letters.
                   2019: 
                   2020:        * final.c (output_source_line): SDB can't handle multiple source
                   2021:        files, so ignore line-NOTEs for other files.
                   2022: 
                   2023:        * hard-reg-set.h: New var reg_class_size (# regs in the class).
                   2024:        * regclass.c (init_reg_class): Set it up.
                   2025: 
                   2026:        * reload.c (find_reloads): If an earlyclobber is in a class of size 1
                   2027:        as an output, reload it as input instead of as output.
                   2028: 
                   2029:        * reload1.c (choose_reload_targets): Improve elimimation of spilled
                   2030:        pseudos made dead by reloading: if pseudo is limited to one block
                   2031:        and that block contains just stores, delete all the stores.
                   2032: 
                   2033:        * reload1.c (choose_reload_targets): reg_has_output_reload is now
                   2034:        static and survives through reload pass.
                   2035:        (forget_old_reloads): Don't cancel data on spilled regs of output
                   2036:        reloads of the insn just made.
                   2037: 
                   2038:        * sdbout.c (sdbout_one_type): Go to .text before defining a type.
                   2039:        (sdbout_block): Test against do_block was backwards.
                   2040: 
                   2041:        * stmt.c (expand_end_function): New args to make a NOTE for last line.
                   2042:        * decl.c (finish_function): Pass the args.
                   2043: 
                   2044:        * rtl.c (no_labels_between): New function.
                   2045:        * vax.md (movsi): Call it.
                   2046: 
                   2047:        * print-tree.c (dump): Don't follow chain of a decl.
                   2048: 
                   2049:        * rtl.c (volatile_refs_p): Moved from flow.c.
                   2050: 
                   2051: Fri Jul 15 13:36:20 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   2052: 
                   2053:        * sdbout.c (PUT_SDB...): Allow config to override any of them.
                   2054:        * sdbout.c (PUT_SDB_{BLOCK,FUNCTION}_{START,END}): New macros.
                   2055:        * tm-3b1.h: Override all of them.
                   2056:        * sdbout.c (SDB_GENERATE_FAKE): New macro to create dummy tag name.
                   2057:        (gen_fake_label): Use SDB_GENERATE_FAKE.
                   2058:        * tm-3b1.h: Override its defn.
                   2059: 
                   2060:        * sdbout.c (sdbout_mark_function_end): Unused; deleted.
                   2061: 
                   2062:        * tm-3b1.h: Define SDB_DEBUGGING_INFO.
                   2063: 
                   2064: Thu Jul 14 01:55:15 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   2065: 
                   2066:        * config-sunv4.h: New file for Sunos version 4.
                   2067: 
                   2068:        * tm-sun3.h (CPP_SPEC): Define mc68010 or mc68020, depending.
                   2069: 
                   2070: Tue Jul 12 15:31:30 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2071: 
                   2072:        * stmt.c (expand_fixup, expand_goto_internal): New functions to
                   2073:        emit a jump that can restore the stack level, even without tree node.
                   2074:        (expand_null_return, expand_exit_loop, etc.): Use expand_goto_internal.
                   2075:        (expand_end_function): Do fixup_gotos after emitting return_label.
                   2076: 
                   2077:        * cse.c (predecide_loop_entry): Avoid using JUMP_LABEL.
                   2078:        * flow.c (find_basic_blocks): Avoid using JUMP_LABEL.
                   2079: 
                   2080:        * flow.c (insn_dead_p): Delete special case for stack-adjust insns.
                   2081:        (life_analysis): Mark those insns with INSN_VOLATILE here.
                   2082:        (mark_used_regs): a SET of a hard reg, in a volatile insn,
                   2083:        always makes its source live.
                   2084: 
                   2085: Mon Jul 11 10:46:26 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2086: 
                   2087:        * ns32k.md (floatqidf2): Commented out since assemblers warn about it.
                   2088: 
                   2089: Sun Jul 10 11:49:23 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2090: 
                   2091:        * decl.c (xref_tag): Default the TYPE_MODE of enum xrefs
                   2092:        to avoid making MEM and REG with VOIDmode.
                   2093: 
                   2094:        * vax.md (call): If > 255 args, pop them explicitly.
                   2095: 
                   2096: Sat Jul  9 10:53:47 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2097: 
                   2098:        * symout.c (symout_types): Fix up forward refs to previously
                   2099:        undefined structure types.
                   2100:        (filter_undefined_types): New function.
                   2101:        (symout_finish, symout_function_end): Output any never-defined structs.
                   2102:        * toplev.c (rest_of_compilation): call symout_function_end.
                   2103: 
                   2104:        * parse.y: Don't declare errno if it's a macro.
                   2105: 
                   2106:        * tm-hp9k320 (FUNCTION_PROFILER): Pass ptr in a0, not d0.
                   2107: 
                   2108:        * typecheck.c (truthvalue_conversion): Flush unnec recursive call.
                   2109:        (build_cond_expr): Bug testing zeroness of IFEXP with TREE_LITERAL.
                   2110: 
                   2111:        * cse.c (fold_cc0): Constants not CONST_INT are certainly nonzero.
                   2112:        * fold-const.c (fold): ADDR_EXPR is not equal to zero.
                   2113: 
                   2114:        * cccp.c (macroexpand): Disable the macro even if traditional.
                   2115:        (rescan): Error if use a disabled macro.
                   2116: 
                   2117:        * combine.c (try_combine): Don't substitute a different reg into
                   2118:        an auto-increment.  Handle multiple REG_INC notes in I1 or I2.
                   2119: 
                   2120:        * decl.c (implicitly_declare): Don't reuse old implicit decl.
                   2121: 
                   2122:        * varasm.c (assemble_variable): Avoid syntax err if no DBX and no SDB.
                   2123:        * final.c (output_source_line): likewise.
                   2124: 
                   2125:        * fold-const.c (fold): PLUS/MINUS_EXPR: in case of cancellation,
                   2126:        convert result to original type.
                   2127: 
                   2128:        * regclass.c (reg_class_record): Changed arguments include address
                   2129:        of entire vector of constraints.
                   2130: 
                   2131: Fri Jul  8 07:59:00 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2132: 
                   2133:        * reload1.c (reload): Find groups of more than 2 registers.
                   2134: 
                   2135: Thu Jul  7 08:33:07 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2136: 
                   2137:        * expr.c (emit_push_insn): Typo adjusting arg for bcopy
                   2138:        if not STACK_GROWS_DOWNWARD.
                   2139: 
                   2140:        * gnulib.c (_cmpsf2): Value is int, not SFVALUE.
                   2141: 
                   2142: Wed Jul  6 11:53:46 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2143: 
                   2144:        * tm-encore.h, tm-3b1.h: Replace ASM_FILE_START; output a .file.
                   2145: 
                   2146:        * *m88*: New files for Motorola 88000.  They don't really work.
                   2147: 
                   2148: Tue Jul  5 14:40:03 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2149: 
                   2150:        * local-alloc.c (combine_regs): Don't tie a reg to itself.
                   2151: 
                   2152:        * finxincludes: Make a variable LIB for the target dir.
                   2153: 
                   2154:        * m68k.md (movhi, addhi3, addsi3): Micro-optimize choice of asm insns.
                   2155: 
                   2156:        * expr.c (expand_expr): Use new macros NO_DEFER_POP, OK_DEFER_POP
                   2157:        in several places, to keep stack predictable.
                   2158: 
                   2159: Mon Jul  4 09:50:18 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2160: 
                   2161:        * integrate.c (function_cannot_inline_p): Increase threshold size.
                   2162: 
                   2163:        * flags.h (use_gdb_dbx_extensions): New variable.
                   2164:        * toplev.c:
                   2165: 
                   2166:        * sdbout.c (PUT_SDB_TAG): Delete duplicate defn.
                   2167: 
                   2168:        * expr.c (expand_expr): For FIX_TRUNC_EXPR to unsigned short/char,
                   2169:        REALLY go via signed int.
                   2170: 
                   2171:        * loop.c (may_trap_p): Was detecting floating arithmetic incorrectly.
                   2172: 
                   2173:        * tm-news800.h (CPP_PREDEFINES): Add sony and sony_news.
                   2174: 
                   2175:        * parse.y (check_newline): Avoid infinite loop at eof.
                   2176: 
1.1.1.4   root     2177: Sat Jul  2 10:35:17 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2178: 
                   2179:        * Version 1.24 released.
                   2180: 
                   2181:        * stmt.c (expand_asm_operands): Produce proper no-outputs insn.
                   2182:        * recog.c (asm_noperands): Detect no-outputs insns.
                   2183:        (decode_asm_operands): Likewise.
                   2184:        * reload.c (find_reloads): Likewise (add case ASM_OPERANDS:).
                   2185: 
                   2186:        * local-alloc.c (block_alloc): Tests of qty_compare were backwards.
                   2187: 
                   2188:        * flow.c (life_analysis): Turn off code that finds regs live at
                   2189:        function start and marks them not local to any basic block.
                   2190: 
                   2191:        * cse.c (insert_regs): Fix typo (UNITS_PER_WORD).
                   2192: 
                   2193:        * cccp.c: Define max.
                   2194: 
                   2195:        * expr.c (expand_expr): Put each SAVE_EXPR's reg on save_expr_regs,
                   2196:        if not optimizing.
                   2197:        * stmt.c (expand_function_end): Mark each of those regs live
                   2198:        at the end and also retroactively at the beginning of the function.
                   2199: 
                   2200:        * output-vax.c (print_operand_address): New function from old macro.
                   2201:        * tm-vax.h (PRINT_OPERAND_ADDRESS): Call that function.
                   2202: 
                   2203:        * config-vms.h: If not under GNU C, define X_OK, etc.
                   2204: 
                   2205:        * expr.c (move_by_pieces_1): Use * to call GENFUN.
                   2206:        (expand_expr): Compare DECL_FUNCTION_CODE against an enum const.
                   2207:        (preexpand_calls): Likewise.
                   2208:        * genrecog.c (write_tree): Likewise.
                   2209:        * final.c (final): Use * to call the output function.
                   2210:        * reload.c (push_reload): Rename `noshare' to `dont_share'.
                   2211: 
                   2212:        * genoutput.c (output_epilogue): Put more newlines in insn_outfun.
                   2213:        * genemit (gen_exp): Put in more newlines.
                   2214: 
                   2215: Fri Jul  1 00:23:57 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2216: 
                   2217:        * global-alloc.c (allocno_compare): Avoid comparisons of floats
                   2218:        since that is sensitive to roundoff errors.
                   2219: 
                   2220: Thu Jun 30 09:25:40 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2221: 
                   2222:        * sdbout.c (PUT_SDB_{DEF,TAG}): Use ASM_OUTPUT_LABELREF.
                   2223:        (PUT_SDB_PLAIN_DEF): New name for old defn of PUT_SDB_DEF
                   2224:        (sdbout_one_type): Use PUT_SDB_PLAIN_DEF for `.eos'.
                   2225: 
                   2226:        * tree.c (allocation_temporary_p): New fcn.
                   2227:        (all_types_permanent): New variable.
                   2228:        (make_node): If that's set, make each ...TYPE node permanent.
                   2229:        * decl.c (grokdeclarator): If traditional, make decl data permanent.
                   2230:        (finish_decl): Make the rtl permanent too.
                   2231:        * stor-layout.c (layout_type): If type is permanent,
                   2232:        make its layout data permanent too.
                   2233: 
                   2234:        * cccp.c: Choose C++ or C at run time via var `cplusplus'.
                   2235:        Separate cplusplus_include_default from include_default.
                   2236:        Get GNU-specific include directory names from macros
                   2237:        GCC_INCLUDE_DIR and GPLUSPLUS_INCLUDE_DIR.
                   2238:        (main): Initialize based on CPLUSPLUS; `-+' sets it.
                   2239:        * Makefile: Set *_INCLUDE_DIR based on $(libdir).
                   2240: 
                   2241: Tue Jun 28 09:25:49 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2242: 
                   2243:        * tree.c (copy_node): Round LENGTH up to multiple of sizeof (int).
                   2244: 
                   2245:        * expr.c (emit_push_insn): Avoid using PUSH_ROUNDING if not defined.
                   2246: 
                   2247:        * sparc.md (floatsisf2): Insert missing brace.
                   2248:        (mulsi3): Replace reg_o0_rtx, reg_o1_rtx.
                   2249: 
                   2250:        * tm-sparc.h: Define DBX_DEBUGGING_INFO.
                   2251: 
                   2252:        * parse.y (yylex): If traditional, no error for out-of-range float.
                   2253: 
                   2254:        * Makefile: Comment saying how to compile on an Apollo.
                   2255: 
                   2256:        * tm-sparc.h (ASM_FILE_START): Switch to new calling convention.
                   2257: 
                   2258:        * decl.c (init_decl_processing): Create type nodes for 64-bit ints.
                   2259:        (grokdeclarator): use them for `long long'.  Warn only if pedantic.
                   2260: 
                   2261:        * optabs.c (init_optabs): Add missing DImode insn names.
                   2262: 
                   2263:        * expr.c (emit_block_move, emit_push_insn): Use movstrqi if appro.
                   2264: 
                   2265:        * expr.c (convert_move): use extendsidi if appropriate.
                   2266: 
                   2267:        * cccp.c (initialize_builtins): Don't install __STDC__ if traditional.
                   2268:        (main): Call initialize_builtins after option processing.
                   2269: 
                   2270:        * integrate.c (output_inline_function): Set current_function_decl.
                   2271: 
                   2272:        * cse.c (fold_rtx): Typo in avoiding 32-bit shifts.
                   2273: 
                   2274:        * cccp.c: Add forward-decl.
                   2275: 
1.1.1.3   root     2276: Mon Jun 27 18:06:42 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2277: 
                   2278:        * hard-reg-set.h (reg_alloc_order): New variable
                   2279:        based on REG_ALLOC_ORDER, a new machine-description macro.
                   2280:        * regclass.c (reg_alloc_order): Define it.
                   2281:        * local-alloc.c (find_free_reg): Handle reg_alloc_order.
                   2282:        * global-alloc.c (find_reg): Likewise.
                   2283:        * stupid.c (stupid_find_reg): Likewise.
                   2284: 
                   2285: Sun Jun 26 10:47:47 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2286: 
                   2287:        * Version 1.23 released.
                   2288: 
                   2289:        * tm-3b1.h: Define IDENT_DIRECTIVE.
                   2290: 
                   2291:        * tm-encore.h: Define SDB_DEBUGGING_INFO.
                   2292:        Define SCCS_DIRECTIVE and IDENT_DIRECTIVE.
                   2293: 
                   2294:        * output-ns32k.c: Decl of paren_base_reg_printed must be outside fcns.
                   2295: 
                   2296:        * tm-encore.h (ASM_OUTPUT_DOUBLE): Do 0f, not 0l.
                   2297:        (CPP_PREDEFINES): No -Dns32032.
                   2298: 
                   2299:        * sdbout.c: Include syms.h, not storclass.h.
                   2300:        (unnamed_struct_member): Decl was missing.
                   2301:        (PUT_SDB_INT_VAL, PUT_SDB_VAL): Fix typos.
                   2302:        (sdbout_types, sdbout_one_type, sdbout_parms): Fix typos.
                   2303: 
                   2304:        * Makefile: Add file sdbout.o.
                   2305:        Changed comments pertaining to sysV.
                   2306:        Make a separate target `doc' to make the info files.
                   2307: 
                   2308:        * m68k.md (bit-field insns): Use nonimmediate_operand for the thing
                   2309:        to extract from.
                   2310:        * vax.md (QImode bit-field insns): Likewise.
                   2311: 
                   2312:        * recog.c (nonimmediate_operand): Accept any nonconst general operand.
                   2313: 
                   2314: Sat Jun 25 07:54:42 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2315: 
                   2316:        * cse.c (lookup_as_function): arg to exp_equiv_p was missing.
                   2317: 
                   2318: Fri Jun 24 09:14:47 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2319: 
                   2320:        * recog.c (memory_operand): Allow (subreg (mem...)).
                   2321: 
                   2322: Thu Jun 23 07:34:07 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2323: 
                   2324:        * decl.c (finish_enum): Compute minimum value like maximum.
                   2325:        If minimum is negative, install it in the type and make it signed.
                   2326: 
                   2327:        * stor-layout.c (layout_record): STRUCTURE_SIZE_BOUNDARY is minimum.
                   2328:        (layout_type): A RECORD_TYPE or UNION_TYPE must be BLKmode if
                   2329:        any member is BLKmode.  This is to prevent putting it in a register.
                   2330:        (layout_decl): If decl's type is BLKmode, the decl *must* be BLKmode.
                   2331: 
                   2332:        * local-alloc.c (find_free_reg): Never allocate the frame pointer reg.
                   2333: 
                   2334:        * tm-sequent.h (PRINT_OPERAND): Bug in SFmode CONST_DOUBLE.
                   2335:        * tm-encore.h: Likewise.
                   2336: 
                   2337:        * flow.c (flow_analysis): Bug in n_basic_blocks error check.
                   2338: 
                   2339:        * stmt.c (expand_asm_operands): Emit no insn if an arg is erroneous.
                   2340: 
                   2341: Tue Jun 21 08:34:24 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2342: 
                   2343:        * reload.c (find_reloads_address): Write back *loc even if
                   2344:        subst_reg_equivs makes no change, in case subst_index_address did.
                   2345: 
                   2346:        * flow.c: Define macros for -1 and -2 as values of reg_basic_block.
                   2347:        (mark_used_regs): Add an `else'; no change in behavior.
                   2348:        (mark_label_ref): Abort if LABEL_REF doesn't contain a CODE_LABEL.
                   2349:        (find_basic_blocks): Extra error check.
                   2350: 
                   2351:        * output-ns32k.c (print_operand_address): Changes in handling of
                   2352:        register-indirect, and of indexing by sb register.
                   2353: 
                   2354: Mon Jun 20 04:55:38 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2355: 
                   2356:        * cccp.c (collect_definition): Compute needed space more accurately.
                   2357:        Abort if use more space than was allocated.
                   2358:        (rescan) [USE_C_ALLOCA]: Do alloca (0) after handle_directive.
                   2359: 
                   2360:        * genflags.c (gen_insn): Put parens around defns of HAVE_... macros.
                   2361: 
                   2362: Sun Jun 19 02:52:53 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2363: 
                   2364:        * expr.c (emit_push_insn): Consider PARM_BOUNDARY when compensating
                   2365:        for size of a pushed arg to bcopy.
                   2366: 
                   2367: Sat Jun 18 07:20:54 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2368: 
                   2369:        * New files sparc.md, tm-sparc.h, config-sparc.h, output-sparc.c.
                   2370: 
                   2371:        * final.c (final): After an ADDR_{,DIFF_}VEC, do ASM_OUTPUT_CASE_END.
                   2372:        * tm-3b1.h: Define ASM_OUTPUT_CASE_END.
                   2373:        (PRINT_OPERAND_ADDRESS): Ref the case tables via an intermediate symbol
                   2374:        `LDnnn' whose def. is output by ASM_OUTPUT_CASE_END.
                   2375:        (ASM_OUTPUT_CASE_LABEL): Add missing newline.
                   2376: 
                   2377:        * reload.c (find_equiv_reg): Reject a MEM containing an autoincrement.
                   2378: 
                   2379: Fri Jun 17 06:58:37 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   2380: 
                   2381:        * genpeep.c (main): Write `extern' in the decl for `peep_operand'.
                   2382: 
                   2383:        * flow.c (propagate_block): When a dead insn has a REG_RETVAL note,
                   2384:        call mark_set_regs anyway, so that `significant' is updated.
                   2385: 
                   2386:        * jump.c (follow_jumps): New arg IGNORE_LOOPS.  If 0, don't follow
                   2387:        the insn at the beginning of a loop that enters the loop; this avoids
                   2388:        interference with loop optimizer.
                   2389:        (jump_optimize, tension_vector_labels): Pass that arg.
                   2390: 
                   2391:        * loop.c (loop_optimize): Mention invalid multiple-entry loops in log.
                   2392: 
                   2393:        * m68k.md (extv, extzv): Fix # of alternatives mismatch in constraints.
                   2394: 
                   2395: Thu Jun 16 03:06:48 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   2396: 
                   2397:        * genrecog.c (change_state): Was mishandling printing XVECEXP indices 
                   2398:        greater than 9.
                   2399: 
                   2400:        * combine.c (subst, simplify_and_const_int): Avoid making SUBREG
                   2401:        of a non-REG.
                   2402: 
                   2403:        * expr.c (expand_expr): For FIX_TRUNC_EXPR to unsigned short/char,
                   2404:        go via signed int.
                   2405: 
                   2406:        * optabs.c (expand_fix): Copy hard_libcall_value reg only once.
                   2407: 
                   2408:        * reload1.c (order_regs_for_reload): Init all elements
                   2409:        of  potential_reload_regs to -1.
                   2410: 
                   2411:        * Prevent generation of (set (reg) (plus ... (label_ref ...))).
                   2412:        * explow.c (memory_address_noforce): Like `memory_address' but
                   2413:        never force it into a register.
                   2414:        * expr.c (do_tablejump): Use that.
                   2415:        * m68k.md (casesi): Use that.
                   2416: 
                   2417:        * rtl.h (struct rtx_def, GET_CODE, PUT_CODE): If SHORT_ENUM_BUG,
                   2418:        define the `code' field as a short.
                   2419: 
                   2420: Wed Jun 15 01:25:57 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2421: 
                   2422:        * gcc.c (CPP_SPEC): New spec set by config.h gives flags to cpp.
                   2423:        * tm-*.h for m68k: Define CPP_SPEC to define __HAVE_FPU__ on
                   2424:        appropriate conditions.
                   2425: 
                   2426:        * combine.c (subst): Simplify (not (minus x 1)) and (neg (minus x y)).
                   2427: 
                   2428: Mon Jun 13 02:22:43 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   2429: 
                   2430:        * typecheck.c (build_array_ref): Avoid duplicate errmsg if index
                   2431:        is an error-mark.
                   2432: 
                   2433: Sun Jun 12 23:04:39 1988  Richard Stallman  (rms at corn-chex.ai.mit.edu)
                   2434: 
                   2435:        * cccp.c (handle_directive): If -traditional, quotes aren't special.
                   2436:        (rescan): Assume newline ends a string constant.
                   2437: 
                   2438:        * cccp.c, cexp.y: Make all fcns non-static; add some forward decls.
                   2439: 
                   2440:        * various: add static forward-decls for various functions.
                   2441: 
                   2442: Fri Jun 10 00:25:18 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2443: 
                   2444:        * reload1.c (choose_reload_targets): When writing back an incremented
                   2445:        value (handling reload_inc), write back to the real place, not to
                   2446:        OLDEQUIV (a register that holds the same value).
                   2447: 
                   2448:        * tm-m68k.h (LEGITIMIZE_ADDRESS): Don't give force_operand a target.
                   2449:        This can cause the use of multiple insns with same output reg,
                   2450:        which can confuse cse.
                   2451: 
                   2452:        * loop.c (consec_sets_invariant_p):
                   2453:        If invariant_p ever returns 2, we return 2.
                   2454:        New arg is # of consecutive sets to look for,
                   2455:        since this info is no longer in n_times_set at move_movables.
                   2456:        (scan_loop): If consec_sets_invariant_p returns 2, set m->cond.
                   2457:        (move_movables): check consecutive insns if m->consec && m->cond.
                   2458: 
                   2459:        * tm*.h: ASM_DECLARE_FUNCTION_NAME now takes 3rd arg,
                   2460:        the FUNCTION_DECL node.
                   2461:        * varasm.c (assemble_function): Pass this arg.
                   2462: 
                   2463:        * expr.c (expand_call, expand_builtin [alloca]):
                   2464:        If STACK_POINTER_OFFSET is defined, add it to stack pointer contents
                   2465:        before using it as address of actual data on the stack.
                   2466:        * stmt.c (expand_decl): Likewise.
                   2467: 
                   2468:        * stmt.c (assign_parms): If 1st parm named `__builtin_va_alist'
                   2469:        came in regs, pretend it came on stack.
                   2470:        Handle pretending a BLKmode var came on the stack.
                   2471:        If REG_PARM_STACK_SLOT, count stack space for each parm
                   2472:        even if the parm came in a register; and use that stack space
                   2473:        if the parm needs to be addressable or is BLKmode.
                   2474:        Rearrange to simplify conditionals.
                   2475: 
                   2476: Thu Jun  9 01:21:29 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2477: 
                   2478:        * local-alloc.c:
                   2479:        `qty_...' vectors' elements for hard-reg-numbers now aren't used.
                   2480:        `reg_qty' elements for hard-reg numbers now aren't used,
                   2481:        and the element for a pseudo is never a hard-reg number.
                   2482:        (local_alloc): No need to reset those elements.
                   2483:        No need to reset elements out of range of prev block's NEXT_QTY.
                   2484:        (reg_is_born, reg_is_set, wipe_dead_reg):
                   2485:        Divide labor in same way for hard regs and pseudos;
                   2486:        simplify using fact that locality-to-basic-block has been precomputed
                   2487:        and recorded in reg_qty; avoid refs to reg_qty[HARDREG].
                   2488:        (reg_is_born, wipe_dead_regs): Block-number arg no longer needed.
                   2489: 
                   2490:        * local-alloc.c (combine_regs): Remove old code for tying hard regs
                   2491:        to pseudos; great simplification results.
                   2492:        Use find_regno_note, not regno_dead_p.
                   2493: 
                   2494: Wed Jun  8 00:18:04 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2495: 
                   2496:        * reload.c (subst_reg_equivs): Set a flag if anything is changed.
                   2497:        (find_reloads_address): Check that flag to avoid extra work.
                   2498:        Also check early for safe reg+const address and avoid work.
                   2499: 
                   2500:        * reload.c (find_reloads): Use loops instead of bcopy.
                   2501:        Check early for insn with no real constraints, and return.
                   2502:        Also check for move from hard reg to hard reg and return.
                   2503: 
                   2504:        * cse.c (canon_reg): Rewrite for speed; use a switch.
                   2505:        (cse_insn): Don't call find_reg_note if REG_NOTES is 0.
                   2506: 
                   2507:        * cse.c (cse_insn): Store modified SET_SRC even if there's a REG_EQUIV.
                   2508:        Inhibition was needed when the SET_SRC was the only place to find the
                   2509:        equivalent value; now it is in the REG_EQUIV note.
                   2510: 
                   2511:        * stmt.c (expand_asm_operands): If NINPUTS is 0, make vec of no elts.
                   2512:        * regclass.c (reg_scan_mark_refs): Don't lose if XVEC (x,i) is 0.
                   2513: 
                   2514: Tue Jun  7 03:51:28 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2515: 
                   2516:        * stmt.c (assign_stack_local): If big-endian and MODE is narrow,
                   2517:        the bytes actually used are the least significant.
                   2518: 
                   2519:        * parse.y (skip_white_space): Accept char as arg; let caller read it.
                   2520:        (yylex): Change call.
                   2521:        (check_newline): Return 1st nonwhite char after skipping lines.
                   2522:        (skip_white_space): Change call.
                   2523:        * toplev.c (compile_file): Change call.
                   2524: 
                   2525:        * gcc.c: Pass -traditional to cc1.
                   2526: 
                   2527:        * cse.c (cse_insn): Return very early for (set (reg) (call...)).
                   2528:        Mainly to save time.
                   2529:        (cse-insn) Old code to add REG_WAS_0 note wasted time but did nothing.
                   2530: 
                   2531:        * expr.c (clear_pending_stack_adjust): Really do clear it,
                   2532:        if current fcn doesn't want to be inline.
                   2533: 
                   2534:        * cse.c (cse_insn): Speedup: instead of safe_hash, use canon_hash
                   2535:        or HASHREG.
                   2536: 
                   2537: Mon Jun  6 21:47:23 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2538: 
                   2539:        * jump.c (rtx_renumbered_equal_p): Reject ADDR_VEC fast.
                   2540: 
                   2541:        * cse.c (cse_insn): Ignore a REG_EQUIV or REG_EQUAL note if the
                   2542:        equivalent value is the same as the SET_SRC of the insn.
                   2543: 
                   2544:        * flow.c (life_analysis): Don't call volatile_refs_p for a CALL_INSN;
                   2545:        just assume value is 1.
                   2546:        (propagate_block): Don't call mark_{used,set}_regs for a stack-pop
                   2547:        since if it isn't dead it has no effect on any useful life data.
                   2548:        (mark_set_1): Return quickly if setting stack-ptr, and almost as
                   2549:        quickly if setting any hard reg.
                   2550:        (mark_used_regs): Likewise for refs.
                   2551:        Also don't scan the vector of an ADDR_VEC or ADDR_DIFF_VEC.
                   2552:        (volatile_refs_p): Likewise.
                   2553: 
                   2554:        * varasm.c (output_constant): Discard NOP_EXPR and CONVERT_EXPR
                   2555:        in integer case (they were for casting a pointer).
                   2556: 
                   2557:        * parse.y (compstmt_or_error): Parse a compstmt after ignoring error.
                   2558:        Use this for fctn body so that an error after store_parm_decls
                   2559:        won't recover to xdecls and call store_parm_decls again.
                   2560:        Typical cause was missing semi at end of last parmdecl.
                   2561: 
                   2562:        * parse.y: Add missing semicolons in actions.
                   2563:        (yylex): Don't use yylloc.
                   2564: 
                   2565: Sun Jun  5 16:14:40 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2566: 
                   2567:        * typecheck.c (build_array_ref): Check arg types here, to make
                   2568:        error message more accurate (not about "addition").
                   2569: 
                   2570: Thu Jun  2 02:41:40 1988  Richard Stallman  (rms at rice-krispies.ai.mit.edu)
                   2571: 
                   2572:        * cccp.c (collect_expansion): `#' isn't special if -traditional.
                   2573: 
                   2574:        * dbxout.c (dbxout_parms): Don't output a regparm symbol
                   2575:        unless the parm got a hard reg assigned.
                   2576: 
                   2577:        * tm-encore.h (ASM_OUTPUT_DOUBLE): Use 0f... not 0d...
                   2578: 
                   2579:        * tm-vax.h (CHECK_FLOAT_VALUE): Define this.
                   2580: 
                   2581: Wed Jun  1 17:13:00 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2582: 
                   2583:        * expr.c (expand_call): Have sequence points between args.
                   2584: 
                   2585: Tue May 31 00:27:06 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2586: 
                   2587:        * expmed.c (store_fixed_bit_field): Avoid shifting by 32.
                   2588:        * cse.c (fold_rtx):
                   2589:        * symout.c (subrange_p):  likewise.
                   2590: 
                   2591:        * local-alloc.c (block_alloc): If operands 1 and 2 commute,
                   2592:        try tying output to operand 2 if operand 1 won't do.
                   2593: 
                   2594:        * toplev.c (compile_file): Pass main_input_file to symout_init.
                   2595: 
                   2596:        * tree.c (build_real, build_real_from_int_cst):
                   2597:        Call CHECK_FLOAT_VALUE if it's defined, to report out-of-range values.
                   2598: 
                   2599:        * tree.c (build_real, build_real_from_int_cst): New 1st arg TYPE.
                   2600:        * parse.y (yylex): Pass this arg; requires parsing suffixes first.
                   2601:        * fold-const.c (fold, combine, fold_convert): Pass this arg.
                   2602:        Handling of float binops in `combine' simplified.
                   2603: 
                   2604:        * tm-encore.h (CPP_PREDEFINES): Remove -Dencore since CC lacks it.
                   2605: 
                   2606:        * final.c (output_source_line): Let ASM_OUTPUT_SOURCE_LINE
                   2607:        be used for SDB also.
                   2608: 
                   2609: Mon May 30 00:21:15 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2610: 
                   2611:        * cse.c (insert): Was inserting in wrong place in list.
                   2612:        (exp_equiv_p): Was failing to check validity when x == y.
                   2613: 
                   2614:        * tree.c (build_pointer_type): Handle saveable_obstack
                   2615:        like current_obstack.
                   2616: 
                   2617:        * decl.c (finish_decl): Error in test for zero-size array warning.
                   2618: 
                   2619:        * reload.c (find_equiv_reg): New arg MODE specifies mode in which
                   2620:        an equivalent value is needed.  Equivalence must be good in that mode.
                   2621:        In addition, notice overlap with multiword register modes.
                   2622:        Simplify, knowing that registers have already been renumbered.
                   2623:        It was invalidating memory-goals too easily; setting a reg
                   2624:        only invalidates memory-goal if its address varies.
                   2625:        * reload.c, reload1.c, jump.c: Calls pass the new argument.
                   2626: 
                   2627:        * cccp.c: For correct ANSI, must reject `$' in identifiers.
                   2628:        (dollars_in_ident): Variable says whether to allow them.
                   2629:        (rescan): Handle `$' as randomchar if that's 0.
                   2630:        (main): dollars_in_ident is set to 0 by -$, to 1 by -traditional.
                   2631:        (rescan, do_define): Delete former pedantic warnings for `$'.
                   2632:        (initialize_char_syntax, initialize_builtins): Inits split to two
                   2633:        functions; former is called after options are scanned
                   2634:        so `$' is in is_idchar conditionally.
                   2635:        * gcc.c: For -ansi, pass -$ to cccp.
                   2636:        * toplev.c, flags.h: Define dollars_in_ident.
                   2637:        * parse.y (yylex): Treat $ as punctuation unless dollars_in_ident.
                   2638:        Delete old pedantic warning about $.
                   2639:        * tm-vms.h: Define DOLLARS_IN_IDENTIFIERS as 1.
                   2640: 
                   2641:        * cccp.c (rescan): Preprocessing numbers can have signs, after `e'.
                   2642: 
                   2643:        * integrate.c (expand_inline_function): Abort, don't return failure,
                   2644:        if max_regno is too low.  I believe this can't happen.
                   2645: 
                   2646:        * typecheck.c (build_binary_op_nodefault):
                   2647:        For ordered comparisons, no pedantic warning about void *.
                   2648:        For MAX, MIN, ditto, and also don't allow pointer vs 0.
                   2649: 
                   2650:        * typecheck.c (build_unary_op): Don't allow pointer for +.
                   2651: 
                   2652:        * typecheck.c (convert_for_assignment): 
                   2653:        Add missing warning for case of unrelated pointer types.
                   2654:        Change criteria for new ANSI C draft.
                   2655: 
                   2656:        * optabs.c (expand_binop): Don't set unused target_is_not_an_operand.
                   2657: 
                   2658:        * fold-const.c (fold_convert): Don't set unused inprec, outprec.
                   2659: 
                   2660:        * emit-rtl.c, parse.y: Delete unused var.
                   2661: 
                   2662:        * stor-layout.c (add_vc_sizes): Unused function deleted.
                   2663:        * loop.c (constant_high_bytes): #if 0 this unused function.
                   2664: 
                   2665:        * gcc.c (fatal): Add missing arg to delete_temp_files.
                   2666: 
                   2667:        * cccp.c (dump_defn_1): Add missing arg to skip_quoted_string.
                   2668: 
                   2669:        * reload.c (find_reloads): If constraints don't fit in an `asm',
                   2670:        print error instead of aborting.
                   2671: 
                   2672:        * regclass.c (reg_class_record): Ignore `&' in constraint.
                   2673: 
                   2674: Sun May 29 00:20:23 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2675: 
                   2676:        * Makefile: Run ranlib only if /usr/bin/ranlib exists.
                   2677:        Add comment saying what to do on system V.
                   2678: 
                   2679:        * tree.c (suspend_momentary): Switch to the saveable_obstack
                   2680:        for the sake of inline functions.
                   2681: 
                   2682:        * flags.h (enum debugger): New enum for write_symbols.
                   2683:        * toplev.c, varasm.c, final.c: Use the enum constants where appro.
                   2684:        Add calls to sdbout paralleling the calls to dbxout;
                   2685:        put each in the appropriate conditional {SDB,DBX}_DEBUGGING_INFO.
                   2686: 
                   2687:        * toplev.c (main): Delete -noreg option; it's now the default.
                   2688:        Make -O an alias for -opt.  Rename -g to -gg.  -g is alias for -G.
                   2689:        Accept and ignore -Wtrigraphs.
                   2690:        * gcc.c: Simplify the specs.
                   2691: 
                   2692:        * toplev.c (compile_file), tm-*.h:
                   2693:        ASM_FILE_START is now a statement, not just a string to be output.
                   2694:        Output it *after* determining the real source file name.
                   2695: 
                   2696:        * fold-const.c (fold): Simplify x >= CST to x > CST-1 (CST positive).
                   2697:        To simplify this, canonicalize relationals to put constat last.
                   2698: 
                   2699:        * decl.c (duplicate_decls): Make a 2nd errmsg to show previous decl.
                   2700: 
                   2701:        * cccp.c (file_size_and_mode): Delete temporary VMS bootstrap patch.
                   2702: 
                   2703:        * tm-att386.h: New file.
                   2704: 
                   2705:        * decl.c (pushdecl): Warn if a local `extern' decl precedes
                   2706:        a file-scope `static' decl.
                   2707: 
                   2708:        * expr.c (expand_call): No warning for failure to inline.
                   2709: 
                   2710:        * expmed.c (extract_bit_field): copy operand 1 of extv or extzv
                   2711:        into register if memory isn't allowed.
                   2712: 
                   2713: Sat May 28 02:10:56 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2714: 
                   2715:        * gnulib.c, Makefile: Delete va_end.
                   2716: 
                   2717:        * final.c, symout.c: Check DBX_DEBUGGING_INFO, not NO_DBX_FORMAT.
                   2718: 
                   2719:        * genemit.c (gen_expand): Notice a CALL inside a PARALLEL.
                   2720: 
                   2721:        * regclass.c (init_reg_sets_1): Part of init_reg_set is put in this
                   2722:        new fn which is called after options are scanned.
                   2723:        Now CONDITIONAL_REGISTER_USAGE can depend on the options.
                   2724:        (fix_register): Just alter the data that init_reg_sets_1 will look at.
                   2725: 
                   2726:        * reload1.c (reload): Don't complain if two different but tieable
                   2727:        modes require groups of the same regclass (assuming same size group).
                   2728: 
                   2729:        * cccp.c: Add 3rd arg to all `open' calls.
                   2730: 
                   2731:        * parse.y (check_newline): Typo prevented ignoring whitespace.
                   2732: 
                   2733:        * cccp.c (perror_with_name): fprintf had harmful extra arg.
                   2734: 
                   2735:        * cccp.c (main, trigraph_pcp): -Wtrigraphs means warn if any trigraphs.
                   2736: 
                   2737:        * emit-rtl.c (gen_sequence): If LEN is 1, avoid looking at PATTERN
                   2738:        of something that doesn't have one.
                   2739: 
                   2740:        * reload1.c (alter_frame_pointer_addresses): frame pointer can
                   2741:        occur by itself, not just inside a PLUS.
                   2742:        (reload): Call eliminate_frame_pointer before reload_as_needed.
                   2743:        Otherwise the latter can make reload insns that copy the frame ptr
                   2744:        to a data reg, but 68k can't copy sp+const to a data reg.
                   2745: 
                   2746:        * decl.c (implicitly_declare): Always save the implicit decl
                   2747:        permanently.  Reuse an old one if it exists.
                   2748:        * tree.c (resume_temporary_allocation): Used after `end_temporary...'
                   2749:        to go back to temporary allocation.
                   2750: 
                   2751:        * stor-layout (layout_{type,decl}): Call variable_size.
                   2752:        (variable_size): Turn a size into a SAVE_EXPR and either compute
                   2753:        it right away or put it on a list to be computed later.
                   2754:        (get_pending_sizes): Return that list and clear it out.
                   2755:        * stmt.c (expand_start_function): Tell `variable_size' to compute
                   2756:        sizes right away, and compute those saved on the list.
                   2757:        (expand_end_function): Tell it to put them on a list.
                   2758: 
                   2759: Fri May 27 00:02:34 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   2760: 
                   2761:        * dbxout.c (dbxout_symbol): For local static var, use 'V', not 'v'.
                   2762: 
                   2763:        * gcc.c (main): Don't handle SIGHUP or SIGTERM if shell ignored it.
                   2764: 
                   2765:        * Makefile, gcc.c: Propagate Make var `libdir' to gcc search path.
                   2766: 
                   2767:        * expr.c (expand_expr): a PARM_DECL with no rtl can occur in size of
                   2768:        `a' in `foo (a,i) int i; struct {int x[i];} a;', so report an error.
                   2769: 
                   2770:        * flow.c (insn_dead_p): insn that makes stack bigger is never dead.
                   2771:        * combine.c (try_combine): Don't splice out stores into stack ptr.
                   2772: 
                   2773:        * reload.c (find_equiv_reg): Test given regno for OVERLAPPING_REGNO_P.
                   2774: 
                   2775:        * varasm.c (assemble_variable): Use saveable_obstack for allocation.
                   2776: 
                   2777: Thu May 26 01:17:00 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   2778: 
                   2779:        * integrate.c (save_for_inline): Clear unused slots in parmdecl_map.
                   2780:        (There may be some non-parm regs below max_parm_regno.)
                   2781:        * integrate.c (copy_for_inline): Don't crash if parmdecl_map elt is 0.
                   2782: 
                   2783:        * Don't fail to output a static inline function that was referenced
                   2784:        via a local extern decl before its definition.
                   2785:        * expr.c (expand_call): If need to mark a fcn decl addressable,
                   2786:        mark the identifier addressable also.
                   2787:        * typecheck.c (mark_addressable): If marking fcn addressable,
                   2788:        mark the identifier as well.
                   2789:        * decl.c (start_function): If identifier was marked addressable,
                   2790:        propagate it to the function.
                   2791: 
                   2792:        * parse.y (yylex): Check for ERANGE after atof is called.
                   2793:        (Sun doesn't report ERANGE.)
                   2794: 
                   2795:        * loop.c (may_trap_p): Any floating arithmetic may trap.
                   2796: 
                   2797: Wed May 25 00:03:34 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   2798: 
                   2799:        * parse.y: Delete `noalias'.
                   2800:        (asm_operand): Don't allow this to be empty.
                   2801:        (asm_operands): Do allow this to be empty.
                   2802: 
                   2803:        * reload.c (operands_match_p): Don't let REG and SUBREG match
                   2804:        if the reg isn't a hard reg.
                   2805:        No longer nec. to check reg_renumber, now that reload
                   2806:        substitutes the hard regno.
                   2807: 
                   2808:        * reload1.c (reload): Counting existing spilled groups,
                   2809:        check HARD_REGNO_MODE_OK so we don't get fooled by an odd-even pair.
                   2810:        Spill entire need for new groups before spilling any solitary regs.
                   2811:        Reg already counted against max_nongroups can't become part of a group.
                   2812:        (new_spill_reg): Do bookkeeping associated with a new spill-reg.
                   2813:        (n_spills): This var is now static, no longer passed as arg
                   2814:        within the file.
                   2815: 
                   2816:        (reload_reg_class_lower): Handle all group-reloads before solitaries.
                   2817:        (choose_reload_targets): therefore #if 0 the special code for
                   2818:        finding solitary registers that aren't suitable for groups.
                   2819:        But fix two bugs in it: braino deciding whether a reload
                   2820:        is looking for 1 register (not a group).  Use CLASS_MAX_NREGS.
                   2821:        Also braino deciding whether a spill reg can be in a group.
                   2822:        Did not fix bug that it fails to test HARD_REGNO_MODE_OK,
                   2823:        so it might split up an even-odd pair.
                   2824: 
                   2825:        * vax.md: Special patterns for 8 and 16-bit fields, to make
                   2826:        move-insns (like the ones for the 68k).
                   2827: 
                   2828:        * tree.c (convert_to_integer): Pass truncation down thru COND_EXPR
                   2829:        as through a binary operator.
                   2830: 
                   2831:        * typecheck.c (build_cond_expr): If unpromoted operand types match,
                   2832:        don't promote them--let containing expression promote (just once).
                   2833: 
                   2834: Tue May 24 14:46:26 1988  Richard Stallman  (rms at frosted-flakes.ai.mit.edu)
                   2835: 
                   2836:        * combine.c (subst): Simplify (subreg (sign_extend X) 0).
                   2837: 
                   2838:        * tm-hp9k320.h: Delete NO_DBX_FORMAT.
                   2839:        * Most tm...h files: Define DBX_DEBUGGING_INFO.
                   2840:        * dbxout.c: Change conditional to DBX_DEBUGGING_INFO.
                   2841: 
                   2842:        * integrate.c (expand_inline_function): If inline fcn was declared to
                   2843:        return QI, but actually computes an SI, use SImode for INLINE_TARGET
                   2844:        but actually return a QI.
                   2845: 
                   2846:        * varasm.c (force_const_mem): Failed to determine alignment bdry
                   2847:        from machine mode.
                   2848: 
                   2849:        * jump.c (jump_optimize): Don't delete (move X Y) if X or Y is a
                   2850:        PRESERVE_DEATH_INFO_REGNO_P register.
                   2851: 
                   2852:        * final.c (output_addr_const): In PLUS, output constant term last.
                   2853: 
                   2854:        * final.c (final): Before outputting an insn, do FINAL_PRESCAN_INSN.
                   2855: 
                   2856:        * final.c (next_block_index): No longer static.
                   2857:        (final): Add SDB_DEBUGGING_INFO cases for outputing NOTEs
                   2858:        for beginning and end of a block.
                   2859:        (output_source_line): Add SDB_DEBUGGING_INFO case for line number.
                   2860:        * varasm.c (assemble_function): Add code for SDB symbol output.
                   2861: 
                   2862:        * gnulib.c: Allow config to override INTIFY.
                   2863:        New macro SFVALUE for data type to return a single-float in.
                   2864: 
                   2865:        * combine.c (remove_death): No longer `static'.
                   2866: 
                   2867:        * reload1. (choose_reload_targets): PRESERVE_DEATH_INFO_REGNO_P
                   2868:        selects hard regs for which death info should be updated for final.
                   2869: 
                   2870:        * reload1.c (reload_as_needed): Let INSN_CLOBBERS_REGNO_P
                   2871:        prevent inheritance of certain reloads.
                   2872: 
                   2873:        * reload.c (find_equiv_reg): Let OVERLAPPING_REGNO_P reject
                   2874:        an equiv reg.  Needed for funny float regs on 80387.
                   2875: 
                   2876:        * cccp.c (do_ident): Define #ident as a no-op if IDENT_DIRECTIVE.
                   2877:        Warn if pedantic.
                   2878:        (do_sccs): Warn if pedantic.
                   2879: 
                   2880:        * emit-rtl.c (restore_reg_data): Set cur_insn_uid--prevent duplicates.
                   2881: 
1.1.1.9   root     2882: See file OChangeLog.
1.1       root     2883: 
                   2884: Local Variables:
                   2885: mode: indented-text
                   2886: left-margin: 8
                   2887: fill-column: 76
                   2888: version-control: never
                   2889: End:

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