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Annotation of gcc/ChangeLog, revision 1.1.1.12

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

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