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Annotation of gcc/ChangeLog, revision 1.1.1.17

1.1.1.17! root        1: Wed Feb 21 00:25:39 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !             2: 
        !             3:        * Version 1.37.1 released.
        !             4: 
        !             5:        * tm-mips.h (ASM_OUTPUT_ADDR_VEC_ELT and ASM_OUTPUT_ADDR_DIFF_ELT):
        !             6:        Start label names with $.
        !             7: 
        !             8: Sun Feb 18 13:58:04 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !             9: 
        !            10:        * tm-mips.h (ASM_GENERATE_INTERNAL_LABEL, ASM_OUTPUT_INTERNAL_LABEL):
        !            11:        Start name with $.
        !            12: 
        !            13:        * integrate.c (expand_inline_function): Round up size of parm_map.
        !            14: 
        !            15: Sat Feb 17 20:56:05 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            16: 
        !            17:        * tm-hp9k320.h (CPP_SPEC): Remove _INCLUDE__STDC__.
        !            18: 
        !            19: Sun Feb 11 20:11:25 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            20: 
        !            21:        * Version 1.37 released.
        !            22: 
        !            23:        * c-decl.c (complete_array_type): In permanent type, add perm nodes.
        !            24: 
        !            25:        * out-i386.c (print_operand_address): Handle a MULT by itself.
        !            26: 
        !            27: Sat Feb 10 14:35:03 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            28: 
        !            29:        * ns32k.md (movsf): Convert double constant to float.
        !            30: 
        !            31: Fri Feb  9 00:02:43 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            32: 
        !            33:        * c-decl.c (duplicate_decls): Don't lose alignment of OLDDECL.
        !            34: 
        !            35:        * cccp.c (handle_directive): Keep comments by copying them explicitly.
        !            36: 
        !            37:        * cccp.c (rescan): When scanning for open-paren after macro name,
        !            38:        discard comments if appropriate.
        !            39: 
        !            40: Thu Feb  8 14:19:41 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            41: 
        !            42:        * c-decl.c (build_enumerator): Error if value outside range of int.
        !            43: 
        !            44:        * tm-hp9k320.h (CPP_SPEC): Define _INCLUDE__STDC__ if not traditional.
        !            45:        * tm-hp9k310.h: Missing file brought back.
        !            46: 
        !            47: Mon Feb  5 12:49:36 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            48: 
        !            49:        * reload1.c (spill_hard_reg): Return 1 if reg is explicitly used.
        !            50:        (reload): Cancel dummy reloads using regs subject to spill.
        !            51: 
        !            52: Sun Feb  4 12:37:00 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            53: 
        !            54:        * tm-3b1g.h: New file.
        !            55:        * config.gcc (3b1g, 3b1-gas): New alternative.
        !            56: 
        !            57:        * tm-att386.h (ASM_OUTPUT_COMMON): Don't use rounded size.
        !            58: 
        !            59: Fri Feb  2 17:04:37 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            60: 
        !            61:        * integrate.c (copy_for_inline): Use real width of rtunion in bcopy.
        !            62:        * emit-rtl.c (copy_rtx_if_shared): Likewise.
        !            63: 
        !            64:        * assert.h (assert) [__STDC__]: Use comma operator to avoid warning.
        !            65: 
        !            66:        * c-decl.c (grokdeclarator): Traditionally change return type float
        !            67:        to double.
        !            68: 
        !            69:        * cse.c (predecide_loop_entry): Give up unless simple jump enters loop.
        !            70: 
        !            71: Thu Feb  1 02:02:21 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            72: 
        !            73:        * tm-convex.h (FASCIST_ASSEMBLER, VTABLE_USES_MASK, VINDEX_MAX):
        !            74:        New definitions to control c++ files.
        !            75: 
        !            76:        * reload1.c (inc_for_reload): Forget reg_last_reload_reg
        !            77:        for the reg being inc'd.
        !            78: 
        !            79:        * limits.h (INT_MIN): Define so it has type `int', not unsigned.
        !            80:        (CHAR_MIN, SCHAR_MIN, SHRT_MIN): Put arens around value.
        !            81: 
        !            82: Wed Jan 31 12:54:07 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            83: 
        !            84:        * tm-mips.h (FUNCTION_PROLOGUE): Use CONST_OK_FOR_LETTER_P to see
        !            85:        if can update fp in one addiu insn.
        !            86: 
        !            87:        * reload1.c (reload): Reject fixed regs when finding groups to spill.
        !            88: 
        !            89:        * assert.h (assert) [NDEBUG]: Make value nonempty.
        !            90:        (assert) [no NDEBUG]: Split into a version for __STDC__ and one not.
        !            91:        (_assert) [__STDC__]: Pass expression and file separately to _eprintf.
        !            92:        (_assert) [not __STDC__]: Likewise, but implemented differently.
        !            93:        * gnulib.c (__eprintf): Handle 3 args plus format string.
        !            94: 
        !            95:        * tm-i386.h (STACK_BOUNDARY): Define it.
        !            96: 
        !            97: Sat Jan 27 17:58:30 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !            98: 
        !            99:        * hard-params.c: Use explicit file name to include self.
        !           100: 
        !           101: Fri Jan 26 01:38:29 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           102: 
        !           103:        * cccp.c (rescan): Set beg_of_line when string ends at newline.
        !           104:        (skip_quoted_string): Don't swallow newline that ends a string.
        !           105:        (handle_directive): No need to back up here.
        !           106:        Pass LIMIT as second arg to skip_quoted_string.
        !           107: 
        !           108:        * cccp.c (rescan): If traditional, end preproc number after expt sign.
        !           109: 
        !           110: Thu Jan 25 01:57:34 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           111: 
        !           112:        * loop.c (general_induction_var): Reject widening multiply.
        !           113: 
        !           114:        * i860.md (andsi3): Truncate xop2 constant to 16 bits.
        !           115: 
        !           116: Wed Jan 17 12:33:52 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           117: 
        !           118:        * tm-mips.h (CC1_SPEC): Don't complain about -g.
        !           119: 
        !           120:        * c-typeck.c (build_compound_expr): Delete special case
        !           121:        that ignores expressions without side effects.
        !           122: 
        !           123:        * stor-layout.c (layout_type): Struct requires BLKmode if any field
        !           124:        crosses a word boundary.
        !           125: 
        !           126:        * reload1.c (choose_reload_regs): Refix Sequent problem correctly.
        !           127: 
        !           128: Tue Jan 16 12:03:42 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           129: 
        !           130:        * c-parse.y (unary_expr): If sizeof or alignof gets a comma expr
        !           131:        which has array or function type, coerce it to pointer.
        !           132: 
        !           133:        * fold-const.c (combine): Propagate carry when subtracting from 0.
        !           134: 
        !           135:        * fold-const.c (fold): For x++==const, do arith in type of const.
        !           136: 
        !           137: Mon Jan 15 19:24:04 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           138: 
        !           139:        * cexp.y (exp): Accept unary +.
        !           140: 
        !           141: Sun Jan 14 12:18:49 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           142: 
        !           143:        * fold-const.c (lshift_double, rshift_double, lrotate_double):
        !           144:        (rrotate_double): Don't shift more than width of operand.
        !           145: 
        !           146: Fri Jan 12 18:50:43 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           147: 
        !           148:        * recog.c (next_insns_test_no_inequality): Return 1 at end of rtl.
        !           149: 
        !           150: Thu Jan 11 14:09:47 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           151: 
        !           152:        * cccp.c (skip_if_group): Skip strings even if -traditional.
        !           153:        (handle_directive): Likewise, when handling copy_command.
        !           154: 
        !           155:        * i860.md (movsf): Ensure F to f is reloaded via r.
        !           156: 
        !           157: Wed Jan 10 15:03:08 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           158: 
        !           159:        * Makefile [3b1]: Propose redefinition of CCLIBFLAGS.
        !           160: 
        !           161:        * reload1.c (choose_reload_regs): Break down hairy if expression.
        !           162: 
        !           163:        * loop.c (loop_skip_over): Do nothing if don't find expected compare.
        !           164: 
        !           165: Sun Jan  7 00:58:06 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           166: 
        !           167:        * config.gcc: Add i386-mach.
        !           168:        * xm-i386.h: Use built-in alloca if compiling with GCC.
        !           169: 
        !           170:        * optabs.c (emit_cmp_insn): Set CLASS after MODE.
        !           171: 
        !           172: Sat Jan  6 15:33:32 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           173: 
        !           174:        * out-mips.c (function_arg, function_arg_advance):
        !           175:        Define typedef for CUMULATIVE_ARGS, and use it here.
        !           176: 
        !           177:        * cccp.c (main): Recognize `.C' for -M.
        !           178: 
        !           179:        * c-parse.y (yylex): Put 0 at end of wide string.
        !           180: 
        !           181:        * tm-mips.h (CC1_SPEC): Don't distort meaning of -O.
        !           182: 
        !           183: Fri Jan  5 12:12:31 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           184: 
        !           185:        * gcc.c (link_command_spec): If LIBS_COMPILED_WITH_GCC, gnulib is last.
        !           186: 
        !           187: Thu Jan  4 23:58:59 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           188: 
        !           189:        * Makefile (c-parse.tab.o): Add explicit compilation cmd.
        !           190: 
        !           191: Wed Jan  3 00:27:53 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           192: 
        !           193:        * Makefile (install): Use nested foreach-loop to expand va*.h.
        !           194: 
        !           195: Mon Jan  1 19:36:49 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           196: 
        !           197:        * expr.c (store_one_arg): Round size up for move_block_to_reg.
        !           198:        (expand_call): Round up when emitting USE insns.
        !           199:        * stmt.c (assign_parms): Round size up for move_block_from_reg.
        !           200: 
        !           201:        * reload1.c (alter_reg): Undo big-endian conversion from
        !           202:        assign_stack_local.
        !           203: 
        !           204: Sun Dec 31 20:10:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           205: 
        !           206:        * tree.h (struct tree_common): Declare `code' as char, not int.
        !           207: 
        !           208: Thu Dec 28 13:49:43 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           209: 
        !           210:        * gnulib.c (__fixunsdfsi): Turn large numbers to small for conversion.
        !           211: 
        !           212:        * Makefile (includes): Set variable LIB.  Run from `./'.
        !           213: 
        !           214: Wed Dec 27 18:54:25 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           215: 
        !           216:        * Makefile (CCLIBFLAGS): Add -O.
        !           217:        (gnulib): Remove -O here.
        !           218:        (HARD_PARAMS_FLAGS): Like CCLIBFLAGS but no -O.
        !           219:        (hard-params, hard-params.o): Use that.
        !           220: 
        !           221:        * loop.c (can_eliminate_biv_p, eliminate_biv): If add_val non zero,
        !           222:        it must be a constant or register.
        !           223: 
        !           224: Mon Dec 25 00:02:31 1989  Torbj|rn Granlund  (tege at zevs.sics.se)
        !           225: 
        !           226:        * tm-pyr.h (FIXUNS_TRUNC_LIKE_FIX_TRUNC): Should not be defined.
        !           227:          The cvtdw instruction causes a trap for floating point values
        !           228:          that are out-of-range for a signed int.
        !           229: 
        !           230:        * out-pyr.c (has_direct_base): Don't accept 0 as a base, if there
        !           231:          is a register displacement.  This is a workaround of a bug in
        !           232:          /bin/as.  (/bin/as changes things like "cmpw 8(reg),0(reg)" into
        !           233:          "cmpw 8(reg),(reg)", which is invalid assembler.)
        !           234: 
        !           235: Sun Dec 24 11:51:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           236: 
        !           237:        * expr.c (emit_move_insn): Lossage validating mem addr of constant.
        !           238: 
        !           239:        * varasm.c (record_constant_1): Missing `return' in ADDR_EXPR case.
        !           240: 
        !           241: Sat Dec 23 10:54:22 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           242: 
        !           243:        * ns32k.md (extract byte from register): Delete #if conditionals.
        !           244:        Assume 32532 always.
        !           245:        (adjust stack): Likewise.
        !           246: 
        !           247: Thu Dec 21 10:24:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           248: 
        !           249:        * i860.md (load DF constant to reg): Typo: extra percent sign.
        !           250:        (floatsidf2): Two words of a double were backwards.
        !           251: 
        !           252:        * reload1.c (alter_reg):
        !           253:        Always do big-endian correction on slot address.
        !           254: 
        !           255:        * gnulib.c (__fixunsdfsi): Don't rely on host compiler for unsigned.
        !           256: 
        !           257:        * i386.md (float push recognizers): Don't pop fpreg if not dead.
        !           258: 
        !           259: Sun Dec 17 12:13:37 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           260: 
        !           261:        * tm-hp9k320.h (CPP_PREDEFINES): Add __hp9000s300, _HPUX_SOURCE.
        !           262: 
        !           263: Sat Dec 16 17:49:30 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           264: 
        !           265:        * loop.c (strength_reduce): When writing insn to init a biv, 
        !           266:        update life range of reg used to init it.
        !           267: 
        !           268:        * combine.c (try_combine): Do combine (y = x, x = y).
        !           269: 
        !           270:        * loop.c (strength_reduce): When finding initial value of a biv,
        !           271:        notice assignments to subregs of it, etc.
        !           272: 
        !           273: Fri Dec 15 00:42:31 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           274: 
        !           275:        * m68k.md (fpa float and float-trunc): Accept general_operand.
        !           276: 
        !           277:        * integrate.c (expand_inline_function):
        !           278:        Put caller's line number after inline stuff.
        !           279:        Put callee's line number before parm manipulation.
        !           280: 
        !           281:        * If local-alloc assumes a reg does not conflict,
        !           282:        don't use it as dummy reload.
        !           283:        * local-alloc.c (wipe_dead_reg): Add REG_UNSET note.
        !           284:        * reload.c (find_dummy_reload): Check for that note.
        !           285: 
        !           286:        * vax.md (casesi): New pattern for super-trivial cse case.
        !           287: 
        !           288:        * jump.c (jump_optimize): Realize that more things can follow
        !           289:        the NOTE_INSN_FUNCTION_END note.  Change in two places,
        !           290:        for optimized and one for unoptimized.
        !           291: 
        !           292: Sat Dec  9 15:21:07 1989  Richard M. Stallman  (rms at ccvi)
        !           293: 
        !           294:        * expr.c (expand_expr): For conversion ops, copy CONST_INT to reg
        !           295:        to avoid lossage on VOIDmode in convert_move or expand_float.
        !           296:        * optabs.c (expand_float): Abort if FROM has VOIDmode.
        !           297: 
        !           298:        * final.c (final_scan_insn): Delete unused label.
        !           299: 
        !           300: Thu Dec  7 01:42:30 1989  Richard M. Stallman  (rms at ccvi)
        !           301: 
        !           302:        * sdbout.c (MAKE_LINE_SAFE): Ensure arg is > sdb_begin_function_line.
        !           303:        (sdbout_begin_block, sdbout_end_block, sdbout_end_function): Use it.
        !           304: 
        !           305:        * jump.c (jump_optimize): Leave block-beg, block-end notes
        !           306:        in old context when swapping two ranges of insns.
        !           307:        (squeeze_block_notes): New function.
        !           308: 
        !           309:        * expr.c (expand_call): For pcc struct, return reg mode is Pmode.
        !           310: 
        !           311:        * c-typeck.c (build_conditional_expr):
        !           312:        Only explicit ints allow predetermined choice.
        !           313: 
        !           314: Wed Dec  6 19:02:07 1989  Richard M. Stallman  (rms at ccvi)
        !           315: 
        !           316:        * toplev.c: Undef FFS after including param.h.
        !           317: 
        !           318: Tue Dec  5 16:01:18 1989  Richard M. Stallman  (rms at ccvi)
        !           319: 
        !           320:        * mips.md (movsf): Use mtc1 where needed.
        !           321: 
        !           322:        * reload1.c (choose_reload_regs): If run out of spill regs,
        !           323:        set must_reuse and try again.
        !           324: 
        !           325: Mon Dec  4 00:18:24 1989  Richard M. Stallman  (rms at ambroise)
        !           326: 
        !           327:        * reload1.c (alter_reg):
        !           328:        Don't set spill_stack_slot_width if from_reg is -1.
        !           329: 
        !           330:        * cse.c (cse_end_of_basic_block): Typos checking NOTE insns.
        !           331: 
        !           332:        * math-68881.h (pow): Add parens around `&'.
        !           333: 
        !           334:        * loop.c (can_eliminate_biv_p, eliminate_biv):
        !           335:        In COMPARE, verify the biv is one of the arguments.
        !           336:        (strength_reduce): When eliminating biv, check for use
        !           337:        in a giv in an address, just as in check_eliminate_biv.
        !           338: 
        !           339:        * stupid.c (reg_order): Make it int, in case reg # is large.
        !           340:        (stupid_reg_compare, stupid_life_analysis): Implement this.
        !           341: 
        !           342: Sun Dec  3 14:17:36 1989  Richard M. Stallman  (rms at ambroise)
        !           343: 
        !           344:        * tm-att386.h (ASM_OUTPUT_LOCAL): Don't generate .lcomm.
        !           345:        Go back to putting the variable in the data section.
        !           346: 
        !           347:        * expr.c (do_jump): Cast XVECLEN to int for subtracting 1.
        !           348: 
        !           349:        * reload.c (decompose): Handle SUBREGs.
        !           350: 
        !           351:        * c-typeck.c (build_modify_expr): Prevent -Wall warning
        !           352:        when we generate a COMPOUND_EXPR for (?:)=.
        !           353: 
        !           354: Mon Nov 27 15:39:40 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           355: 
        !           356:        * Makefile [pyramid]: Use CLIB, not ALLOCA, to access libPW.a.
        !           357:        Use -lc explicitly first.
        !           358: 
        !           359:        * pyr.md (SI test recognizer): Fix syntax error,
        !           360: 
        !           361:        * c-decl.c (grokdeclarator): Don't test size of error_mark_node
        !           362:        as type of a field.
        !           363: 
        !           364: Sun Nov 26 12:36:01 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
        !           365: 
        !           366:        * tm-mips.h (CONST_OK_FOR_LETTER_P): Delete extra paren.
        !           367: 
        !           368: Wed Nov 22 12:56:41 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           369: 
        !           370:        * pyr.md (mode conversion peepholes): Set CC_NO_OVERFLOW.
        !           371:        * out-pyr.c (consecutive_operands): Don't expect wrap from reg15 to 16.
        !           372: 
        !           373:        * Makefile: Fix directions for pyramid.
        !           374: 
        !           375:        * tm-mips.h (CONST_OK_FOR_LETTER_P): Define `K'.
        !           376:        (SMALL_INT): Range is 16 bits, not 17.
        !           377:        (SMALL_INT_UNSIGNED): New macro.
        !           378:        * mips.md (andsi3, iorsi3, xorsi3): Use `K', not `I'.
        !           379: 
        !           380:        * mips.md (negsi2): Accept general_operand as input.
        !           381: 
        !           382: Tue Nov 21 10:57:45 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           383: 
        !           384:        * mips.md (one_cmpl*): Accept general_operand as input.
        !           385: 
        !           386: Mon Nov 20 11:18:58 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           387: 
        !           388:        * expr.c (expand_expr): For MINUS_EXPR, don't explicitly negate int
        !           389:        constant if it is in a mode too wide for host machine int.
        !           390: 
        !           391:        * cse.c (fold_rtx): Simulate negative shift counts.
        !           392: 
        !           393: Sun Nov 19 14:36:18 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           394: 
        !           395:        * out-pyr.c (notice_update_cc): Set CC_NO_OVERFLOW in many cases.
        !           396: 
        !           397:        * cse.c (fold_rtx, fold_cc0): Handle float trap. 
        !           398: 
        !           399: Sat Nov 18 00:17:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           400: 
        !           401:        * varasm.c (output_constant): Handle float trap in fprintf.
        !           402:        * toplev.c (float_signal): Don't print message.
        !           403:        * fold-const.c (combine): Print it here.
        !           404: 
        !           405:        * sparc.md (extend patterns): Handle CONST_INT as operand.
        !           406: 
        !           407:        * out-i386.c (singlemove_string): Fix paren error.
        !           408: 
        !           409: Fri Nov 17 12:19:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           410: 
        !           411:        * expr.c (expand_increment): For pre-increment, copy the rtx to return.
        !           412: 
        !           413:        * c-parse.y (compstmt): There may be implicit decls, so check
        !           414:        and maybe keep the level.
        !           415: 
        !           416:        * tm-mips.h (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE):
        !           417:        Use call_used_regs, not a private copy.
        !           418: 
        !           419: Thu Nov 16 00:28:29 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           420: 
        !           421:        * reload1.c: Keep track of paradoxical subregs of each pseudo,
        !           422:        and make extra stack space for their sake.
        !           423:        (reload): Record max size paradoxical subreg for each pseudo.
        !           424:        (scan_paradoxical_subreg): New subroutine for that.
        !           425:        (reload): Make stack slots big enough for that size.
        !           426: 
        !           427:        * tm-i860.h (ASM_DECLARE_FUNCTION_NAME): Define it,
        !           428:        so we can output a no-op before each function.
        !           429: 
        !           430:        * tm-pyr.h (INIT_CUMULATIVE_ARGS): Simplify.
        !           431:        Pass function type to aggregate_value_p.
        !           432: 
        !           433:        * fold-const.c (fold):
        !           434:        For foo++ > const, don't change if foo++ could overflow.
        !           435: 
        !           436:        * loop.c (eliminate_biv):
        !           437:        Fix typo; check both coeffs when comparing givs.
        !           438: 
        !           439: Wed Nov 15 00:12:59 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           440: 
        !           441:        * integrate.c (copy_for_inline): Correctly handle RTL type "u".
        !           442: 
        !           443:        * jump.c (delete_insn): Extra test for PREV != 0.
        !           444: 
        !           445: Tue Nov 14 17:31:08 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           446: 
        !           447:        * tm-sun3.h (LINK_SPEC): Specify -L to control choice of -lm.
        !           448: 
        !           449:        * tm-pyr.h (INIT_CUMULATIVE_ARGS):
        !           450:        If -fpcc-struct-return, always do the scalar thing.
        !           451: 
        !           452:        * function.c (expand_function_end): Use FUNCTION_OUTGOING_VALUE.
        !           453: 
        !           454: Sat Nov 11 00:18:54 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           455: 
        !           456:        * tm-sun386.h (ASM_OUTPUT_COMMON): Use ROUNDED, not SIZE.
        !           457:        (ASM_OUTPUT_LOCAL): Likewise.  Also, generate .lcomm
        !           458:        rather than a .data area symbol.
        !           459:        * tm-att386.h: Likewise.
        !           460: 
        !           461: Fri Nov 10 15:04:15 1989  Richard Stallman  (rms at rice-chex)
        !           462: 
        !           463:        * caller-save.c (emit_mult_restore, emit_mult_save):
        !           464:        Improve arithmetic for address to save at.
        !           465: 
        !           466: Thu Nov  9 00:14:19 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           467: 
        !           468:        * tm-pyr.h (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP):
        !           469:        Don't use obsolete pushw and popw insns.
        !           470:        (ASM_OUTPUT_ALIGN): Ensure arg in range 2 to 5.
        !           471:        * pyr.md (tstdi): Pattern deleted.
        !           472:        (SImode test recognizer): Output ucmpw if jump is unsigned.
        !           473: 
        !           474:        * out-sparc.c (operands_satisfy_eager_branch_peephole): 
        !           475:        Check for moves between FP and non-FP regs; they take two insns.
        !           476:        * sparc.md (eager branch peepholes): Likewise.
        !           477:        (Ordinary delayed branch peepholes): Similar check.
        !           478:        * out-sparc.c (single_insn_extra_test): New subroutine.
        !           479: 
        !           480: Wed Nov  8 18:19:51 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           481: 
        !           482:        * combine.c (subst): In (sign_extend:M (subreg:N (and:M .. <const>) 0))
        !           483:        insist that constant be positive in mode N.
        !           484: 
        !           485: Tue Nov  7 23:25:20 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           486: 
        !           487:        * rtl.h: Undefine FFS in case it was defined by the system.
        !           488: 
        !           489: Mon Nov  6 14:43:55 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           490: 
        !           491:        * tm-i860.h, tm-m88k.h, tm-pyr.h, tm-spur.h (INIT_CUMULATIVE_ARGS):
        !           492:        Test aggregate_value_p, not just BLKmode.
        !           493: 
        !           494:        * gnulib2.c (__builtin_saveregs): Moved from gnulib.c.
        !           495:        Code added for mips.
        !           496: 
        !           497:        * pyr.md (conditional branch recognizers): Don't simplify if not -O.
        !           498: 
        !           499:        * out-pyr.c (extend_and_branch): Handle two constant operands.
        !           500: 
        !           501:        * integrate.c (function_cannot_inline_p): Don't inline if alloca used.
        !           502: 
        !           503: Sun Nov  5 02:59:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           504: 
        !           505:        * Always make a LET_STMT and notes for the top level of a function
        !           506:        if it has any subblocks.
        !           507:        * c-decl.c (struct binding_level): New field keep_if_subblocks.
        !           508:        (poplevel): Obey the new field.
        !           509:        (keep_next_if_subblocks): New variable.
        !           510:        (pushlevel): Use that variable.
        !           511:        (store_parm_decls): Set that variable.
        !           512:        (compstmt): Pass nonzero to expand_end_bindings
        !           513:        for the new kept binding levels.
        !           514:        (kept_level_p): New function.
        !           515: 
        !           516:        * xm-mips.h: Define USE_C_ALLOCA if compiling with CC.
        !           517: 
        !           518:        * tm-alliant.h (CHECK_FLOAT_VALUE): Define this.
        !           519: 
        !           520:        * expr.c (expand_call): Make valreg 0 if passing structure address.
        !           521: 
        !           522: Sat Nov  4 23:27:02 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           523: 
        !           524:        * caller-save.c (emit_mult_save, emit_mult_restore):
        !           525:        Test regs for suitability as address before using as temps.
        !           526: 
        !           527:        * cccp.c (make_definition, do_define): Better error checks for name.
        !           528: 
        !           529: Fri Nov  3 01:05:04 1989  Torbj|rn Granlund  (tege at echnaton)
        !           530: 
        !           531:        * pyr.md (tstdi): New pattern.  Use 64-bit shift with count zero.
        !           532: 
        !           533:        * pyr-tm.h: -mretd pops args with the retd insn.
        !           534: 
        !           535:        * pyr.md (peep-holes for loop optimizations): Use the R output
        !           536:          format in PRINT_OPERAND, don't use output_branch.
        !           537:        * out-pyr.c: No need for functions output_branch, output_inv_branch.
        !           538: 
        !           539:        * tm-pyr.h (ASM_OUTPUT_ALIGN): Don't truncate alignment to two.
        !           540: 
        !           541: Wed Nov  1 00:38:27 1989  Torbj|rn Granlund  (tege at echnaton.sics.se)
        !           542: 
        !           543:        * out-pyr.c (output_inv_branch): When reversing test operands, ne
        !           544:          remains ne, and eq eq eq.
        !           545: 
        !           546:        * pyr.md: Cleanup output code for compare patterns.
        !           547: 
        !           548:        * pyr.md (return): Adjust frame pointer if
        !           549:          current_function_pretend_args_size != 0.
        !           550: 
        !           551:        * pyr.md (extendsidi2): Use general_operand for the input operand.
        !           552: 
        !           553:        * pyr.md, out-pyr.c: Output shift insns with output_shift.
        !           554: 
        !           555:        * tm-pyr.h, out-pyr.c: Make NOTICE_UPDATE_CC understand how
        !           556:          condition codes are really set.  Define flag CC_VALID_FOR_UNSIGNED
        !           557:          with to make it possible not to reset cc after each compare or
        !           558:          test.
        !           559:        * pyr.md: Don't use CC_STATUS_INIT for most patterns.
        !           560: 
        !           561:        * out-pyr.c (already_sign_extended): Cleanup, correct, optimize.
        !           562: 
        !           563:        * out-pyr.c: rename radr_diff to constant_diff.
        !           564: 
        !           565:        * out-pyr.c (movdi_possible): Don't combine moves from memory to
        !           566:          memory, because of possible address aliasing.  Don't combine moves
        !           567:          with register destination if the source operands are depending on
        !           568:          the destination of the first move, as in
        !           569: 
        !           570:            movw (pr3),pr3
        !           571:            movw 4(pr3),pr4.
        !           572: 
        !           573:        * out-pyr.c (consecutive_operands): Handle SUBREG in addition to REG.
        !           574: 
        !           575:        * out-pyr.c (output_move_double): movl of immediate *sign* extends.
        !           576: 
        !           577: Tue Oct 31 22:51:39 1989  Torbj|rn Granlund  (tege at echnaton.sics.se)
        !           578: 
        !           579:        * pyr.md (cmpsi): Don't expand this.  It's just slower.
        !           580: 
        !           581:        * out-pyr.c (extend_and_branch): Handle only QImode and HImode.
        !           582:          Flush code specific for SImode.
        !           583: 
        !           584:        * out-pyr.c (extend_and_branch): To make zero extensions to HImode
        !           585:          of constants not crash:
        !           586:        * out-pyr.c (ensure_extended): Call extend_const if it's a
        !           587:          CONST_INT.  Don't call extend_const from extend_and_branch.
        !           588:        * pyr.md, out-pyr.md: Use global variable test_mode to determine the
        !           589:          mode of tests and compares.  Set in define_expands for tests and
        !           590:          compares.  Used in extend_and_branch.
        !           591:        * out-pyr.c: Pass mode between extend_and_branch and ensure_extended.
        !           592: 
        !           593:        * out-pyr.c (extend_and_branch): Accept SUBREG whereever REG is
        !           594:          accepted.
        !           595:        * out-pyr.c (weird_memory_memory): Accept SUBREG whereever REG is
        !           596:          accepted.
        !           597: 
        !           598: Thu Nov  2 13:02:15 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           599: 
        !           600:        * gnulib2.c (lshrdi2, and other shifts): Take second arg as long long.
        !           601: 
        !           602:        * out-i386.c (fp_pop_int): Use %L0 in fistp insn.
        !           603: 
        !           604: Wed Nov  1 00:05:59 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           605: 
        !           606:        * stmt.c (init_function_start): Init max_parm_reg.
        !           607: 
        !           608:        * varasm.c (compare_constant_1): For ADDR_EXPR, compare symbol name.
        !           609:        (record_constant_1): Likewise.
        !           610: 
        !           611:        * out-sparc.c (output_mul_by_constant): Constant zero is legitimate.
        !           612: 
        !           613:        * caller-save.c (emit_mult_restore, emit_mult_save):
        !           614:        Handle stack addresses which are invalid.
        !           615: 
        !           616:        * cse.c (use_related_value): Don't abort if offset is 0.
        !           617: 
        !           618: Tue Oct 31 15:08:58 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           619: 
        !           620:        * config.gcc (pyramid): Set $machine to pyr.
        !           621: 
        !           622:        * Makefile: Change temp file names from tmp-insn-* to tmp-*.
        !           623: 
        !           624:        * expr.c (expand_call): OK_DEFER_POP for is_const was once too many.
        !           625: 
        !           626: Sun Oct 29 00:53:46 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           627: 
        !           628:        * c-parse.y (yylex): Prevent warning for numbers that underflow.
        !           629: 
        !           630:        * stmt.c (assign_parms): Convert stack addresses to valid addresses.
        !           631:        (validize_mem): New subroutine.
        !           632: 
        !           633:        * stmt.c (check_for_full_enumeration_handling): Accept enum type
        !           634:        as argument (since was finding it incorrectly).
        !           635:        Delete special case for constant index.
        !           636:        (expand_end_case): Pass enum type; check for constant index.
        !           637: 
        !           638:        * cexp.y (initialize_random_junk): Test DOLLARS_IN_IDENTIFIERS
        !           639:        for nonzeroness.
        !           640: 
        !           641: Fri Oct 27 16:25:19 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           642: 
        !           643:        * tm-next.h (__inline): define as macro for old 1.34 Next uses.
        !           644: 
        !           645: Wed Oct 25 17:59:33 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           646:        * stmt.c: Include recog.h.
        !           647: 
        !           648: Tue Oct 24 19:23:11 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           649: 
        !           650:        * combine.c (try_combine): Don't move a volatile asm.
        !           651: 
        !           652: Mon Oct 23 01:45:34 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           653: 
        !           654:        * combine.c (try_combine): Don't install a subreg relating two modes
        !           655:        that aren't tieable.
        !           656: 
        !           657:        * gnulib2.c (__fixdfdi): Declare __fixunsdfdi.
        !           658: 
        !           659:        * combine.c: Make uid_cuid an int *.
        !           660:        (combine_instructions): Allocate as such.
        !           661:        * loop.c: Make uid_luid an int *.
        !           662:        (loop_optimize): Allocate as such.
        !           663: 
        !           664: Sun Oct 22 16:34:28 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           665: 
        !           666:        * stmt.c (fixup_var_refs_1): New insn before a CALL goes before
        !           667:        the preceding USEs.
        !           668: 
        !           669: Sat Oct 21 00:51:49 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           670: 
        !           671:        * out-pyr.c (extend_and_branch): Allow SUBREG like REG.
        !           672:        * pyr.md (mem-reg and reg-mem HI, QI patterns):
        !           673:        Don't match unless one arg is MEM.
        !           674: 
        !           675:        * out-sparc.c (output_fp_move_double): Use ldd only when safe,
        !           676:        on same conditions used for std.
        !           677: 
        !           678:        * Makefile (gnulib): Fix comments for editing for hpux.
        !           679: 
        !           680: Fri Oct 20 00:27:00 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           681: 
        !           682:        * out-i386.c (singlemove_string): Handle ordinary constants as input.
        !           683: 
        !           684:        * reload1.c (choose_reload_regs): Arg of HARD_REGNO_MODE_OK
        !           685:        was the pseudo; should be the reload reg.
        !           686: 
        !           687:        * tm-decstatn.h (CPP_PREDEFINES): Add bsd4_2, ultrix, MIPSEL, 
        !           688:        host_mips, R3000, LANGUAGE_C, SYSTYPE_BSD.
        !           689:        * tm-mips.h (CPP_PREDEFINES): Add host_mips, R3000, MIPSEB, LANGUAGE_C.
        !           690:        (CPP_SPEC): Remove those from here.
        !           691:        Define __SYSTYPE_*__ always.  Define SYSTYPE_* only if not -ansi.
        !           692:        No CPP_SPEC needed for decstation.
        !           693:        Correct typos in option tests.
        !           694: 
        !           695: Thu Oct 19 18:16:40 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           696: 
        !           697:        * tm-m68k.h, tm-alliant.h (PRINT_OPERAND):
        !           698:        Don't print :l for address if :w was already printed.
        !           699: 
        !           700: Wed Oct 18 13:03:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           701: 
        !           702:        * tm-mips.h (FUNCTION_PROLOGUE): Get rid of __0__gcc macro.
        !           703:        Store that value in frame_stack_difference.
        !           704:        (FUNCTION_EPILOGUE): Get rid of __0__gcc macro.
        !           705:        (FIX_FRAME_POINTER_ADDRESS): Use frame_stack_difference.
        !           706:        * out-mips.c (frame_stack_difference): Define here.
        !           707: 
        !           708:        * gcc.c (compilers): Define __GNUG__ if g++.
        !           709: 
        !           710: Tue Oct 17 01:17:07 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           711: 
        !           712:        * tm-i860.h (HAVE_PRE_INCREMENT): Undefine this.
        !           713: 
        !           714:        * mips.md (movsf): New alternatives for r registers.
        !           715:        * tm-mips.h (FUNCTION_PROLOGUE): Handle big stack frames.
        !           716:        * out-mips.c (function_arg): Handle mode distinction for floating args.
        !           717: 
        !           718:        * pyr.md (mtstsw pattern): Accept general_operand.
        !           719: 
        !           720:        * i860.md (movsf): New alternatives: allow loading r from F.
        !           721:        Prefer f-reg as reload when moving m from F.
        !           722:        * tm-i860.h (PRINT_OPERAND): Handle CONST_DOUBLE if SFmode.
        !           723: 
        !           724: Sun Oct 15 19:45:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           725: 
        !           726:        * i860.md (movhi, movqi): Support moves to/from fp regs.
        !           727: 
        !           728:        * sparc.md (cse'd multiply): New pattern for mult. by -1.
        !           729: 
        !           730:        * out-i860.c (load_opcode, store_opcode): Handle DImode and fp reg.
        !           731: 
        !           732:        * expr.c (emit_library_call, expand_call): Make a SEQUENCE for
        !           733:        any needed USE insns and pass them to emit_call_1.
        !           734:        (emit_call_1): Place the passed SEQUENCE immediately before the
        !           735:        generated CALL_INSN even if gen_call made more than one insn.
        !           736: 
        !           737: Fri Oct 13 00:12:46 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           738: 
        !           739:        * recog.c (constrain_operands): Add case for `&'.
        !           740: 
        !           741:        * expmed.c (extract_bit_field): With structure reg fetched from mem,
        !           742:        don't put in subreg if mode already correct.
        !           743:        (store_bit_field): Typo: had extzv, wanted insv.
        !           744: 
        !           745:        * stmt.c (expand_function_start): Call init_recog.
        !           746: 
        !           747: Thu Oct 12 01:48:30 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           748: 
        !           749:        * cccp.c (macarg1): Count newlines even after backslash.
        !           750: 
        !           751:        * c-decl.c (pushdecl): Don't warn for explicit extern
        !           752:        followed by static.  That case is useful for incomplete arrays.
        !           753: 
        !           754:        * tm-sparc.h (SELECT_RTX_SECTION): Test was backwards.
        !           755: 
        !           756: Wed Oct 11 00:35:25 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           757: 
        !           758:        * tm-seq386.h (DBX_DEBUGGING_INFO): Override this.
        !           759:        (HARD_REGNO_MODE_OK): Override this.
        !           760: 
        !           761: Mon Oct  9 01:09:25 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           762: 
        !           763:        * i860.md (movdi): accept F source in 2nd alternative.
        !           764:        Accept G source in 3rd.
        !           765:        (adddi3, subdi3): Typo in opcode of output.
        !           766: 
        !           767: Sun Oct  8 01:38:27 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           768: 
        !           769:        * tm-mips.h (ASM_SPEC): Pass -nocpp to as.
        !           770: 
        !           771:        * c-decl.c (grokdeclarator): Ignore variant differences
        !           772:        when preserving typedef types from being altered.
        !           773: 
        !           774: Sat Oct  7 00:46:18 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           775: 
        !           776:        * xm-mips.h: Use __builtin_alloca.
        !           777: 
        !           778: Fri Oct  6 00:30:42 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           779: 
        !           780:        * reload.c (find_equiv_reg): Do let xregno be a pseudo reg,
        !           781:        but don't call HARD_REGNO_NREGS in that case.
        !           782: 
        !           783: Thu Oct  5 00:30:39 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           784: 
        !           785:        * reload.c (find_equiv_reg): Don't let xregno be a non-hard reg.
        !           786:        Don't do OVERLAPPING_REGNO_P on a pseudo reg number. 
        !           787: 
        !           788:        * i386.md (trunchiqi2, etc.): Output %1 with size of destination.
        !           789:        * out-i386.c (PRINT_REG): Support 'b' as CODE.
        !           790: 
        !           791:        * combine.c (try_distrib): Make sure we don't move a reg use
        !           792:        across a store into that reg.
        !           793: 
        !           794:        * reload1.c (order_regs_for_reload): Rate fixed regs at LARGE+2,
        !           795:        and explicitly used regs at LARGE+1.
        !           796: 
        !           797:        * stor-layout.c (build_int): When memoizing, make permanent nodes.
        !           798: 
        !           799: Wed Oct  4 19:40:37 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           800: 
        !           801:        * xm-i860.h: Missing file added.
        !           802: 
        !           803: Mon Oct  2 16:26:33 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           804: 
        !           805:        * reload1.c (emit_reload_insns): Reject any OLDEQUIV that is
        !           806:        in use in any other reload of this insn.
        !           807: 
        !           808:        * expr.c (expand_call): Don't put on notes for const functions
        !           809:        if there aren't real insns to hold them.
        !           810: 
        !           811: Sun Oct  1 19:50:59 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           812: 
        !           813:        * integrate.c (expand_inline_function): Handle PARALLEL in CALL_INSNs
        !           814:        when setting follows_call.
        !           815: 
        !           816:        * i860.md (pfeq, pfgt and pfle patterns): Add f0 as 3rd arg.
        !           817: 
        !           818:        * integrate.c (save_for_inline): Don't delete NOTE_INSN_FUNCTION_END.
        !           819: 
        !           820: Fri Sep 29 08:56:30 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           821: 
        !           822:        * tm-next.h (LINK_SPEC): Typo for -Z option.
        !           823: 
        !           824: Thu Sep 28 12:57:11 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           825: 
        !           826:        * reload.c (decompose): Handle case of pseudo with no hard reg.
        !           827: 
        !           828: Wed Sep 27 01:20:36 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           829: 
        !           830:        * explow.c (round_push): Fix typo: return fast if ALIGN is 1.
        !           831: 
        !           832:        * varasm.c (in_text_section): New function.
        !           833:        * tm-3b1.h (ASM_OUTPUT_SKIP): Use that.
        !           834: 
        !           835: Tue Sep 26 02:40:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
        !           836: 
        !           837:        * c-typeck.c (commontype): If one arg is error_mark_node, return other.
        !           838: 
1.1.1.16  root      839: Sun Sep 24 00:21:24 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    840: 
1.1.1.17! root      841:        * c-decl.c (poplevel): When popping a local extern decl,
        !           842:        save the TREE_USED bit in the identifier.
        !           843:        * toplev.c (compile_file): Check that, printing "not used" warnings.
        !           844: 
        !           845:        * tree.c (make_node): Always put PARM_DECL in saveable_obstack.
        !           846: 
1.1.1.16  root      847:        * Version 1.36 released.
                    848: 
                    849:        * genextract.c (main): Pass `insn' as arg to `fatal_insn_not_found'.
                    850: 
                    851:        * tahoe.md (casel patterns): Use %@ for operand of .align.
                    852:        * tm-tahoe.h (PRINT_OPERAND): %@ prints `1'.
                    853:        * tm-harris.h (PRINT_OPERAND): Redefine it; %@ prints `2'.
                    854: 
                    855:        * config.gcc (decstation): New entry.
                    856: 
                    857:        * tm-harris.h: New file, using tm-tahoe.h.
                    858: 
                    859:        * tm-decstatn.h, tm-mips-bsd.h, tm-mips-sysv.h: New files.
                    860: 
                    861: Sat Sep 23 00:28:14 1989  Alain Lichnewsky  (lich at glenlivet)
                    862: 
                    863:        * added -Zxxx flag in tm-mips.h. (-Z stands for systype)
                    864: 
                    865:          used as -ZSYSV or -ZBSD43 on RISC_OS. I suppose
                    866:          that at somepoint -ZPOSIX might be required for Ultrix. 
                    867: 
                    868:        * changed command issued to loader to set -systype and to get
                    869:           crt1 crtn instead of crt0.
                    870: 
                    871:         * changed predefines for cpp to agree with RISC-OS
                    872: 
                    873:        * tm-mips.h checks for machine type ( defined(ultrix) == DECSTATION)
                    874:          so that user does not have to go in and change tm-mips.h anymore
                    875: 
                    876:        * cpp defines mips host_mips unix and SYSTYPE_SYSV
                    877:          or SYSTYPE_BSD43. 
                    878: 
                    879: Fri Sep 22 00:31:29 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    880: 
                    881:        * pyr.md (andsi3): Flush spurious paren.
                    882: 
                    883:        * Makefile (hard-params): Don't use LIBS or LIBDEPS.
                    884: 
                    885:        * rtl.c (init_rtl):
                    886:        Use malloc to allocate the string for format of CONST_DOUBLE.
                    887:        Don't fail to store in rtx_format.
                    888: 
                    889: Thu Sep 21 00:33:13 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    890: 
                    891:        * print-tree.c (dump): Move decl of P in REAL_CST case.
                    892: 
                    893:        * fold-const.c (fold): For ABS_EXPR, handle REAL_IS_NOT_DOUBLE.
                    894: 
                    895:        * c-convert.c (convert_to_real): Use REAL_VALUE_ATOF to make 0.
                    896: 
                    897:        * mips.md (movdi): Handle constant with or without WORDS_BIG_ENDIAN.
                    898:        For alternative 2, output just 2 store insns, not 3.
                    899: 
                    900:        * dbxout.c (dbxout_symbol): Optionally go to .data for
                    901:        a static file-scope variable.
                    902:        * tm-vax.h: Define DBX_STATIC_STAB_DATA_SECTION to request this.
                    903: 
                    904:        * varasm.c (output_constant, force_const_mem):
                    905:        ASM_OUTPUT_DOUBLE_INT now takes rtx as argument.
                    906: 
                    907:        * gvarargs.h [__NeXT__]: Undefine macros defined by stdardg.h.
                    908:        Define _VARARGS_H.
                    909: 
                    910:        * stddef.h (size_t): Don't define it if _SIZE_T macro is defined.
                    911:        (NULL): Undef any previous defn.
                    912: 
                    913:        * cexp.y (NULL): Don't define if already defined.
                    914: 
                    915:        * emit-rtl.c (force_next_line_note): New function.
                    916:        * stmt.c (expand_function_start): Call that just before returning.
                    917: 
                    918: Wed Sep 20 01:22:16 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    919: 
                    920:        * c-parse.y (asm_clobbers):
                    921:        Allow string concatenation: call combine_strings.
                    922: 
                    923: Mon Sep 18 00:04:06 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    924: 
                    925:        * expr.c (expand_call): If calling const function, don't defer
                    926:        pops for this call.
                    927: 
                    928:        * c-parse.y (yylex): When float constant ends in `f',
                    929:        actually truncate to a single-float.
                    930: 
                    931: Sun Sep 17 01:36:43 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    932: 
                    933:        * gcc.c (SWITCH_TAKES_ARG): -A takes an arg.
                    934:        (link_spec): Inhibit start files when -A.
                    935: 
                    936:        * convex.md (call, call_value): Supply dummy arg to RETURN_POPS_ARGS.
                    937: 
                    938:        * gnulib2.c (__fixunsdfdi): After removing top half, A can be neg.
                    939:        (__cmpdi2, __ucmpdi2): Was misusing macros HIGH and LOW--
                    940:        use .s.high and .s.low to extract words from long_long.
                    941: 
                    942:        * Makefile (gnulib2): Run `./gcc'.
                    943: 
                    944:        * Makefile (float.h): Use `make', not `$(MAKE)'.
                    945:        (hard-params.o): Use `$(srcdir)' in deps as in commands.
                    946: 
                    947:        * out-tahoe.c (output_move_double): Handle constant operand 1.
                    948: 
                    949: Sat Sep 16 01:15:24 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    950: 
                    951:        * reload1.c (emit_reload_insns): Put death note for input reload reg
                    952:        even if reload was inherited.
                    953: 
                    954:        * out-i860.c (output_block_move): Typo loading size of block.
                    955: 
                    956:        * m68k.md (dbra patterns): Do CC_STATUS_INIT.
                    957: 
                    958:        * cse.c (fold_rtx): Check GET_MODE_CLASS before floating negate.
                    959: 
                    960: Fri Sep 15 00:39:44 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    961: 
                    962:        * combine.c (subst): Don't combine (subreg (mem))
                    963:        if subreg's mode is wider than mem's mode.
                    964: 
                    965: Thu Sep 14 04:33:51 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    966: 
                    967:        * Makefile (clean): Delete temp files used in making gnulib.
                    968: 
                    969:        * tm-next.h (LINK_SPEC): Pass -Z and -seglinkedit options.
                    970: 
                    971: Tue Sep 12 01:06:39 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    972: 
                    973:        * stor-layout.c (layout_type): Ignore MAX_FIXED_MODE_SIZE for ints.
                    974: 
                    975:        * mips.md (cmpsi + bleu peephole): Should output unsigned insn.
                    976: 
                    977:        * expmed.c (store_bit_field, extract_bit_field): If loading mem
                    978:        into reg for bit field insn, don't use a larger mode than insn wants.
                    979: 
                    980:        * Makefile (stamp-gnulib2): Depend on gcc, cc1, cpp to avoid
                    981:        wrong order of making when parallel.
                    982: 
                    983:        * Makefile (float.h): Do use $(MAKE) to run recursive make.
                    984: 
                    985: Mon Sep 11 00:49:11 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                    986: 
                    987:        * cccp.c (main): Test for missing arg after -o, etc.
                    988: 
                    989:        * tm-next.h: Nearly completely new.
                    990: 
                    991:        * gcc.c (SWITCH_TAKES_ARG, WORD_SWITCH_TAKES_ARG): Move after config.h.
                    992: 
                    993:        * cccp.c: Cast some args to strcpy and strcat.
                    994: 
                    995:        * genoutput.c (error): Declare arg S.
                    996: 
                    997:        * tm-pyr.h, pyr.md, out-pyr.c, xm-pyr.h: New files.
                    998:        * config.gcc: New item for pyr.
                    999: 
                   1000:        * gvarargs.h: If __pyr__, use va-pyr.h.
                   1001: 
                   1002: Sun Sep 10 00:48:43 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1003: 
                   1004:        * reload1.c (inc_for_reload): Really return the first of the insns.
                   1005: 
                   1006:        * stor-layout.c (build_int): Memoize size nodes for sizes <= 32.
                   1007: 
                   1008:        * loop.c (check_dbra_loop): Don't reverse a biv that is used
                   1009:        in between its update and the loop endtest insn.
                   1010: 
                   1011: Sat Sep  9 02:10:49 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1012: 
                   1013:        * stor-layout.c (genop): Don't use `combine' for nonexplicit constants.
                   1014:        Handle some identity elements, etc., directly.
                   1015:        (layout_basetypes): Function deleted.
                   1016:        (layout_record): Ignore any TYPE_DECLs in the fieldlist.
                   1017:        Don't do PCC_BUTFIELD_TYPE_MATTERS hack on field with ERROR_MARK type.
                   1018:        (layout_union): Delete error check for base types.
                   1019:        Ignore any TYPE_DECLs in the fieldlist.
                   1020:        (layout_type): Copy layout info directly into all variants of type.
                   1021:        Delete unused local `x'.
                   1022: 
                   1023:        * mips.md (movdi): Handle constant source operand.
                   1024:        (movsi): Some output code moved to output_load_immediate.
                   1025:        * out-mips.c (output_load_immediate): New function.
                   1026: 
                   1027:        * config.gcc (iris): Use tm-iris.h and xm-iris.h.
                   1028: 
                   1029:        * integrate.c (copy_for_inline): Copy all nonconstant MEM addresses.
                   1030: 
                   1031:        * tm-3b1.h (ASM_OUTPUT_SPACE): New override defn, to output explicit
                   1032:        bytes of 0 if in text segment.
                   1033: 
                   1034: Fri Sep  8 19:15:08 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1035: 
                   1036:        * combine.c (try_combine): Don't do i3dest stuff if i3 isn't a SET.
                   1037: 
                   1038: Thu Sep  7 00:16:32 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1039: 
                   1040:        * integrate.c (function_cannot_inline_p): Fn is "not even close"
                   1041:        only if > 3 * max_insns.
                   1042: 
                   1043:        * toplev.c (fatal_insn_not_found): New fn.
                   1044:        * genextract.c (main): Make insn_extract call that fn.
                   1045: 
                   1046:        * integrate.c (expand_inline_function): Don't abort about bad offset
                   1047:        in a parm whose type is error_mark_node.
                   1048:        Make another syntax level to hold parm destructors.
                   1049: 
                   1050:        * tm-mips.h (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE):
                   1051:        Increment push_loc after, not before, each reg save or restore.
                   1052:        When storing reg 9 or 29, use offset tsize-4.
                   1053:        Make tsize larger by 4 initially.
                   1054:        (STARTING_FRAME_OFFSET): -8, not -4.
                   1055: 
                   1056:        * gcc.c (choose_temp_base): Make use of TMPDIR and P_tmpdir
                   1057:        if they exist.
                   1058: 
                   1059:        * toplev.c, gcc.c, cccp.c, gen*.c (fancy_abort):
                   1060:        New function which can be used to replace `abort'.
                   1061: 
                   1062:        * toplev.c (main): Save argv, argc in save_argv, save_argc.
                   1063: 
                   1064:        * jump.c (delete_insn): Always advance NEXT across deleted insns,
                   1065:        in case not optimizing.  Fixes setting current_function_returns_null.
                   1066: 
                   1067:        * symout.c: Include stddef.h with <...>.
                   1068: 
                   1069: Wed Sep  6 00:39:35 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1070: 
                   1071:        * gcc.c (find_exec_file): Was using `argbuf[0]' where wanted `prog'.
                   1072: 
                   1073:        * combine.c (combine_instructions): Dont call record_dead_and_set_regs
                   1074:        if insn has become a NOTE.
                   1075: 
                   1076:        * reload.c (combine_reloads): Update reload_when_needed.
                   1077: 
                   1078:        * jump.c (delete_insn): If delete label on ADDR_VEC, delete table too.
                   1079:        (jump_optimize): If ADDR_DIFF_VEC label has 1 ref, delete it and table.
                   1080: 
                   1081:        * gunlib2.c (__fixunsdfdi, __floatdfdi): Make the long long,
                   1082:        and/or its two halves, unsigned.
                   1083: 
                   1084:        * reload1.c (reload): When setting double_reg_address_ok,
                   1085:        require it to be offsettable.
                   1086:        * out-sparc.c (output_fp_move_double): Now safe to use std
                   1087:        for all reg+reg addresses.
                   1088: 
                   1089:        * vax.md: Add another simplified-casesi pattern for operand 0 constant.
                   1090: 
                   1091:        * cse.c (fold_rtx): Don't truncate VAL at end if WIDTH is 0.
                   1092:        Don't alter WIDTH for that purpose based on the operands.
                   1093: 
                   1094:        * stmt.c (warn_if_unused_value): && or || is ok if 2nd op has effect.
                   1095: 
                   1096:        * c-parse.y (ALIGNOF unary_expr): Find a larger value if possible.
                   1097: 
                   1098:        * reload.c (combine_reloads): Don't combine an output address reload.
                   1099:        (find_reloads): Call combine_reloads after setting reload_when_needed.
                   1100:        (find_reloads_address): Update OPERAND if copy the operand.
                   1101: 
                   1102:        * cccp.c (macroexpand): Missing arg no error in 1-arg macro if -trad.
                   1103: 
                   1104: Tue Sep  5 14:12:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1105: 
                   1106:        * reload.c (find_dummy_reload): Don't use the output reg if it is
                   1107:        a fixed reg which can overlap with other regs.
                   1108: 
                   1109:        * cse.c (exp_equiv_p): Two vectors must have same length.
                   1110: 
                   1111:        * tree.def (WITH_CLEANUP_EXPR): Print-name string was wrong.
                   1112: 
                   1113:        * optabs.c (expand_fix): Undo previous change (unsigned conversion).
                   1114:        It doesn't work.
                   1115: 
                   1116:        * gcc.c: Pass -i option to cpp.  It takes an arg.
                   1117: 
                   1118:        * cccp.c (cplusplus_include_defaults) [VMS]: Typo in array indices.
                   1119: 
                   1120:        * Makefile (gnulib): Create it in tmpgnulib, then rename at the end.
                   1121: 
                   1122:        * i860.md (movdi from constant pattern): Fix `st' opcode typos.
                   1123: 
                   1124:        * Makefile (hard-params*): Use CCLIBFLAGS, not CFLAGS.
                   1125: 
                   1126: Fri Sep  1 03:43:50 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1127: 
                   1128:        * tm-i386gas.h (ASM_OUTPUT_ALIGN): .align arg isn't a log, in gas.
                   1129:        (ASM_OUTPUT_ALIGN_CODE): Align labels, etc. to 4-byte boundary.
                   1130: 
                   1131:        * integrate.c (save_for_inline): Delete NOTE_INSN_DELETED notes.
                   1132: 
                   1133:        * Makefile (clean): Delete dbr and jump2 dumps.
                   1134: 
                   1135:        * Makefile (gnulib, gnulib2): Compile in main dir, not libtemp subdir.
                   1136:        This avoids trouble with -I options, etc.
                   1137: 
                   1138: Thu Aug 31 15:07:19 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1139: 
                   1140:        * reload1.c (emit_reload_insns):
                   1141:        Be specific moving REG_DEAD notes to an output reload.
                   1142:        Sometimes move them to output-operand-address reloads.
                   1143: 
                   1144:        * out-sparc.c (output_fp_move_double): Very cautious about std.
                   1145:        Use it only for something visibly aligned, or for an array element.
                   1146: 
                   1147:        * cccp.c (main) [VMS]: Remove dirs and extension from PROGNAME.
                   1148:        (pfatal_with_name) [VMS]: Return VMS system call error code as status.
                   1149:        (cplusplus_include_defaults) [VMS]: Add GNU_GXX_INCLUDE.
                   1150: 
                   1151:        * xm-vms.h (FATAL_EXIT_CODE): Now (44 | 0x10000000).
                   1152: 
                   1153:        * expr.c (do_store_flag): Allow more values of STORE_FLAG_VALUE.
                   1154: 
                   1155:        * gnulib2.c (__fixunsdfdi): Explicitly cast doubles to `long int'
                   1156:        to avoid infinite recursion.
                   1157: 
                   1158: Wed Aug 30 13:28:54 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1159: 
                   1160:        * loop.c (skip_consec_insns): Skip NOTEs.
                   1161: 
                   1162:        * loop.c (general_induction_var): If G or V is a nonreplaceable giv,
                   1163:        give up.  If G is allocated here, consider it replaceable.
                   1164: 
                   1165:        * stupid.c: Make uid_suid, reg_where_born and reg_where_dead
                   1166:        vectors of ints, not short.
                   1167: 
                   1168: Tue Aug 29 00:21:13 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1169: 
                   1170:        * tm-iris.h: Fix typo in formfeed char.
                   1171: 
                   1172:        * out-i860.c (singlemove_string): Add missing `.l' to `st', `ld'.
                   1173: 
                   1174:        * loop.c (general_induction_var): Don't set G from 2nd op. of MINUS,
                   1175:        since that would negate the result.
                   1176: 
                   1177: Mon Aug 28 00:16:36 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   1178: 
                   1179:        * dbxout.c (dbxout_symbol): When we need a pointer type, don't
                   1180:        record it in TYPE_POINTER_TO, lest it not live as long as its target.
                   1181: 
                   1182:        * tm-hp9k320.h (CPP_PREDEFINES): Delete __hp9000s300 and _HPUX_SOURCE.
                   1183: 
                   1184:        * Makefile (gnulib): Deleted stamp-gnulib2 in wrong dir.
                   1185:        (hard-params.o): Copy it into current dir before compiling.
                   1186:        (STAGESTUFF): Include the stamp-*.[ch] files.
                   1187: 
                   1188: Sun Aug 27 13:59:39 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   1189: 
                   1190:        * out-i860.c (output_size_for_block_move): Typo in CC_KNOW_HI_R31.
                   1191: 
                   1192:        * integrate.c (expand_inline_function): Ignore insns to set value reg
                   1193:        if we don't want the value.
                   1194: 
                   1195:        * varasm.c (make_function_rtl, make_decl_rtl): Use DECL_ASSEMBLER_NAME.
                   1196: 
                   1197:        * Makefile (stamp-gnulib2): Don't explicitly delete old members,
                   1198:        just replace them.
                   1199: 
                   1200:        * m68k.md, alliant.md (trunchiqi): Use movew if moving from memory
                   1201:        or from a const_int.
                   1202: 
                   1203:        * integrate.c (expand_inline_function): Set first_parm_offset
                   1204:        later on, after computing the args, in case those args
                   1205:        contain inline function calls.
                   1206: 
                   1207:        * alliant.md (movqi): Like recent change in m68k.md.
                   1208: 
                   1209: Sat Aug 26 00:26:03 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   1210: 
                   1211:        * tm-hp9k320.h (CPP_PREDEFINES): Take out m68k and mc68000.
                   1212:        * tm-news.h (CPP_PREDEFINES): Add mc68000.
                   1213: 
                   1214: Fri Aug 25 15:37:35 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   1215: 
                   1216:        * optabs.c (expand_fix): Can convert to unsigned int
                   1217:        by subtracting 2**(N-1), converting to signed, and adding 2**(N-1).
                   1218: 
                   1219:        * reload.c (find_reloads_address): For out-of-range stack slot,
                   1220:        reload the displacement into a reg.
                   1221:        (find_reloads_toplev): For subreg of a reg with a reg_equiv_address,
                   1222:        turn the whole thing into a memref.
                   1223: 
                   1224: Thu Aug 24 14:07:03 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   1225: 
                   1226:        * c-decl.c (grokdeclarator): If function is declared `extern inline',
                   1227:        set current_extern_inline.
                   1228:        (start_function): In that case, set TREE_EXTERN in function decl.
                   1229:        * toplev.c (rest_of_compilation): In that case, don't really compile.
                   1230:        (compile_file): Don't output such functions at the end either.
                   1231: 
                   1232:        * c-typeck.c (build_function_call): Do set NAME if we have one.
                   1233: 
                   1234:        * Prevent any variability in results of qsort.
                   1235:        * stupid.c (stupid_reg_compare): Compare by regno as last resort.
                   1236:        * global-alloc.c (allocno_compare): Same idea.
                   1237:        * local-alloc.c (qty_compare_1): Same idea.
                   1238:        * reload1.c (hard_reg_use_compare, reload_reg_class_lower): Same idea.
                   1239: 
                   1240:        * cccp.c (macroexpand): If read one arg, but it's whitespace,
                   1241:        consider that 0 args for checking number of args.
                   1242:        Improve plurals in error messages.
                   1243: 
                   1244:        * expr.h (inhibit_defer_pop): New name for current_args_size,
                   1245:        now declared here.
                   1246:        (NO_DEFER_POP, OK_DEFER_POP): Moved here.
                   1247:        * expr.c: Names related to current_args_size renamed.
                   1248:        (clear_current_args_size): Deleted.
                   1249:        * stmt.c (expand_function_start): Init inhibit_defer_pop here.
                   1250: 
                   1251:        * stmt.c (expand_start_stmt_expr): Do NO_DEFER_POP.
                   1252:        (expand_end_stmt_expr): Do OK_DEFER_POP, and don't do deferred pops.
                   1253: 
                   1254:        * Makefile (c-parse.tab.c): Pass -o option to Bison.
                   1255: 
                   1256: Wed Aug 23 23:14:06 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   1257: 
                   1258:        * expmed.c (store_bit_field, extract_bit_field):
                   1259:        Use GET_MODE_WIDER_MODE to scan possible modes for bestmode.
                   1260: 
                   1261:        * Makefile (stamp-gnulib2): Discard error messages from `ar d'.
                   1262: 
                   1263: Tue Aug 22 00:31:51 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   1264: 
                   1265:        * final.c (output_source_line): In COFF, don't output `.ln 0'.
                   1266: 
                   1267:        * Makefile (stamp-gnulib2): Depend on gnulib.  For parallel make.
                   1268: 
                   1269:        * stmt.c (uninitialized_vars_warning): Don't crash if DECL_RTL is 0.
                   1270: 
                   1271:        * i386.md (truncdfsf2): Pay attention whether stack top is dead.
                   1272: 
                   1273: Mon Aug 21 22:02:40 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   1274: 
                   1275:        * reload1.c (choose_reload_regs): Don't use regno uninitialized,
                   1276:        in the code that does find_equiv_reg.
                   1277: 
                   1278: Sun Aug 20 00:06:47 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   1279: 
                   1280:        * m68k.md (movqi): Was outputting bad code for areg->mem and mem->areg.
                   1281: 
                   1282:        * explow.c (memory_address): Handle a hard reg in wrong reg class.
                   1283: 
                   1284:        * stmt.c (expand_function_end): Set REG_FUNCTION_VALUE_P in return
                   1285:        reg when returning address of structure value block.
                   1286: 
                   1287:        * integrate.c (save_for_inline): Preserve integrated bit on insns.
                   1288: 
                   1289: Sat Aug 19 14:20:07 1989  Richard Stallman  (rms at apple-gunkies.ai.mit.edu)
                   1290: 
                   1291:        * combine.c (subst): Don't change (subreg:M (mem:N ...)) to 
                   1292:        (mem:M ...) if address is mode-dependent.
                   1293: 
                   1294:        * config.gcc: Copy and alter Makefile for any srcdir except `.'.
                   1295:        In that case, make a .gdbinit as well.
                   1296: 
                   1297:        * sparc.md (andcbsi3, iorcbsi3, xorcbsi3): These are not commutative.
                   1298: 
                   1299:        * vax.md (cmpv and cmpzv patterns): Use COMPARE, not MINUS.
                   1300: 
                   1301: Fri Aug 18 12:24:52 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   1302: 
                   1303:        * alliant.md (movqi): Change move to mov in assembler code.
                   1304: 
                   1305:        * integrate.c (expand_inline_function):
                   1306:        Handle args passed in regs and copied to slots reached via arg ptr.
                   1307: 
                   1308:        * out-sparc.c (output_delayed_branch):
                   1309:        Do alter_subreg on operands of delay insn.
                   1310: 
                   1311:        * reload1.c (choose_reload_regs): Look for a reg to share
                   1312:        before one that we won't share.
                   1313: 
                   1314:        * expr.h: Define OPTAB_MUST_WIDEN.
                   1315:        * optabs.c (expand_binop): Handle that case.
                   1316:        * expmed.c (expand_shift): Use that when widening lshift to ashift.
                   1317: 
                   1318:        * optabs.c (emit_cmp_insn): Use CONST0_RTX, not individual vars.
                   1319: 
                   1320:        * gnulib2.c (lsh*di3, ash*di3): Return right away if count is zero.
                   1321:        Otherwise tried to shift by 32.
                   1322:        Also replace constant 32 by something symbolic.
                   1323: 
                   1324:        * final.c (output_source_line): Output line number in COFF
                   1325:        even if wrong file.
                   1326: 
                   1327: Thu Aug 17 15:16:34 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   1328: 
                   1329:        * Makefile (version.o): Make this a target; specify source file.
                   1330:        (obstack.o): Likewise.
                   1331: 
                   1332:        * config.gcc (i860): New alternative.
                   1333: 
                   1334:        * i860.md (movstrsi): Record the alignment as operand 3.
                   1335:        Renumber following (internal) operands.
                   1336:        * out-i860.c (output_block_move): Rewrite as in out-sparc.c.
                   1337:        (output_size_for_block_move): Likewise.  And don't
                   1338:        subtract alignment from the size.
                   1339: 
                   1340: Wed Aug 16 13:27:12 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   1341: 
                   1342:        * loop.c (combine_movables): Don't combine zero-extend
                   1343:        registers that live outside the loop.
                   1344: 
                   1345:        * integrate.c (expand_inline_function): Use copy_to_mode_reg
                   1346:        to set up this_struct_value_rtx, to handle sums right.
                   1347: 
                   1348:        * Makefile: Use $(srcdir) in bison output files used as deps.
                   1349:        Supply some missing deps.
                   1350:        (*.info, doc): *.info files go in srcdir.
                   1351: 
                   1352: Tue Aug 15 00:11:12 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   1353: 
                   1354:        * i860.md, tm-i860.h, out-i860.c: New files.
                   1355: 
                   1356:        * c-decl.c (duplicate_decls): Fix bug determining whether NEWDECL
                   1357:        is a definition or just a decl.
                   1358:        Combine code to preserve various things from old definition
                   1359:        through a declaration.
                   1360: 
                   1361:        * config.gcc: Scan all args at beginning, setting variables.
                   1362:        Arg of form -srcdir=... sets srcdir explicitly.
                   1363:        srcdir now doesn't contain a slash, and is used with a slash.
                   1364: 
                   1365:        * Makefile (install): Copy header files and gcc.1 from srcdir.
                   1366:        But copy float.h from current dir.  (Remove that from USER_H.)
                   1367:        (various): Use new variable INCLUDES to get the -I options.
                   1368:        Add -I. at the beginning of these.
                   1369:        (gnulib, gnulib2): Likewise, use SUBDIR_INCLUDES.
                   1370:        Also, get source file from srcdir.
                   1371:        Also, depend on $(CONFIG_H).
                   1372:        (alloca.o): Get alloca.c from srcdir.
                   1373: 
                   1374:        * reload1.c (emit_reload_insns): Bug in last change:
                   1375:        don't fail to set this_reload_insn.
                   1376: 
                   1377:        * Makefile (Bison rules): Specify $(srcdir) for target and source.
                   1378:        (Explicit C rules): Specify $(srcdir)/ for source in commands.
                   1379:        Use sed to eliminate `./' in normal case.
                   1380:        (insn-*.c): Use $(srcdir) to run move-if-change.
                   1381: 
                   1382:        * config.gcc: Check . and .. for the sources.
                   1383:        If in .., use that when making links.
                   1384:        Also, copy Makefile, alter srcdir in it, and add a VPATH.       
                   1385: 
                   1386:        * stmt.c (expand_end_case): When converting CONST_INT index
                   1387:        to an INTEGER_CST, sign-extend if signed type.
                   1388: 
                   1389: Mon Aug 14 13:51:08 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   1390: 
                   1391:        * c-decl.c (duplicate_decls): Warn for qualifier mismatch
                   1392:        only if pedantic; don't consider it a type mismatch.
                   1393:        Merge the qualifiers of the two decls if the types match.
                   1394: 
                   1395:        * expmed.c (store_bit_field): For insv, memref displacement
                   1396:        always counts in bytes, regardless of unit fetched.
                   1397:        When checking predicate of op0, accept any mode.
                   1398: 
                   1399:        * optabs.c (expand_float): One call to can_float_p had args backwards.
                   1400: 
                   1401:        * loop.c (check_dbra_loop): Set the JUMP_LABEL of the new jump insn.
                   1402:        Increment label's use count rather than storing 2.
                   1403: 
                   1404:        * Makefile: Instead of $<, which fails in certain makes,
                   1405:        use $@ and then substitute in the name with sed.
                   1406: 
                   1407:        * out-sparc.c (output_scc_insn): Handle CC_REVERSED for ordered tests.
                   1408:        Use orcc insns to store the result and set cc's for it.
                   1409: 
                   1410:        * sparc.md (scc combination patterns):
                   1411:        Use operands[0] as basis for recorded cc value.
                   1412: 
                   1413:        * gnulib2.c (floatdidf, fixdfdi, fixunsdfdi): New functions.
                   1414: 
                   1415:        * gnulib.c (floatdidf, fixdfdi, fixunsdfdi): Deleted.
                   1416:        (union longlong, union double_di): Deleted.
                   1417:        (HIGH, LOW): Deleted.
                   1418:        These were deleted because most did not handle full range of DI
                   1419:        and they didn't use the right calling convention for DI.
                   1420: 
                   1421: Sun Aug 13 13:06:45 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   1422: 
                   1423:        * c-typeck.c (comptypes): Qualifiers must match.
                   1424:        (Was already true for scalars.)
                   1425:        Also, array elt qualifiers must match.
                   1426: 
                   1427:        * tm-apollo68.h (STRUCT_VALUE): Make it 0.
                   1428:        (This was done before and lost.)
                   1429:        * out-i386.c (function_epilogue): Use ret $4 to pop structure address.
                   1430:        (This was done before and lost.)
                   1431: 
                   1432:        * out-i386.c (call_top_dead_p): Don't fail to check
                   1433:        the rtx code of the insns themselves.
                   1434:        (This was done before and lost.)
                   1435: 
                   1436:        * out-sparc.c (output_block_move): If align is 8, make it 4.
                   1437: 
                   1438:        * typeclass.h: New file.
                   1439:        * expr.c: Include it.
                   1440:        (expand_builtin): Use those codes in __builtin_classify_type.
                   1441: 
                   1442:        * Makefile (all, lang-c): Reinstall gnulib2.
                   1443: 
                   1444:        * Makefile (gnulib2): Don't give up if `ar d' fails.
                   1445: 
                   1446:        * expr.c (emit_library_call): New 2nd arg NO_QUEUE.
                   1447:        All callers changed to pass it.
                   1448:        * optabs.c (expand_binop, expand_unop): Don't call emit_queue.
                   1449:        Instead, pass 1 for NO_QUEUE to emit_library_call.
                   1450: 
                   1451: Sat Aug 12 12:05:22 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   1452: 
                   1453:        * reload1.c (emit_reload_insns): Decision for where to put input
                   1454:        reload insn is now common to ordinary case and auto-increment.
                   1455:        Likewise, updating these positions afterward.
                   1456: 
                   1457:        * stmt.c (assign_parms): Treat last named arg as nameless.
                   1458:        * expr.c (expand_call): Likewise.
                   1459: 
                   1460:        * explow.c (copy_to_mode_reg): Use force_operand for PLUS or MULT.
                   1461:        (copy_addr_to_reg): Use copy_to_mode_reg.
                   1462: 
                   1463:        * expmed.c (store_bit_field): Handle case where insv rejects memrefs.
                   1464: 
                   1465:        * tm-convex.h (ASM_OUTPUT_ALIGN): Magic to handle the fact
                   1466:        that this is not called when LOG is 0.
                   1467: 
                   1468: Fri Aug 11 16:39:51 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   1469: 
                   1470:        * emit-rtl.c (get_lowpart): For multi-word, in error check,
                   1471:        test the unit size of the containing mode.
                   1472: 
                   1473:        * cccp.c (macroexpand, dump_all_macros): Return void.
                   1474:        (macroexpand): Cast sprintf arg to char*.
                   1475:        (error, warning, error_with_line): Declare first arg char*.
                   1476: 
                   1477: Thu Aug 10 21:42:13 1989  Richard Stallman  (rms at hobbes.ai.mit.edu)
                   1478: 
                   1479:        * expr.c (expand_call):
                   1480:        Use force_operand to copy arithmetic to register.
                   1481: 
                   1482:        * dbxout.c (dbxout_symbol): Go back to N_FUN for const variable.
                   1483: 
                   1484:        * integrate.c (expand_inline_function): Use proper machine mode
                   1485:        for a structure value in memory at address passed by caller.
                   1486: 
                   1487: Wed Aug  9 15:21:36 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1488: 
                   1489:        * config.gcc: Delete unnecessary variable assignments in case stmt.
                   1490:        (isi68-nfp): New alternative.
                   1491: 
                   1492:        * combine.c (try_combine): Don't substitute for a register
                   1493:        which is being explicitly clobbered.
                   1494: 
                   1495:        * This change was requested for C++.
                   1496:        * varasm.c (decode_reg_name, make_decl_rtl): Arg ASMSPEC now char *.
                   1497:        * toplev.c (rest_of_decl_compilation): Likewise.
                   1498:        * c-decl.c (finish_decl): Change call to rest_of_decl_compilation.
                   1499: 
                   1500:        * tree.h (struct tree_decl): Pack machine_mode into 8 bits.
                   1501: 
                   1502:        * explow.c (memory_address, copy_to_reg):
                   1503:        Use force_operand to copy arithmetic to register.
                   1504: 
                   1505:        * tm-isi68-nfp.h: New file.
                   1506:        * tm-isi68.h: Allow overriding TARGET_DEFAULT, and let that
                   1507:        change CPP_SPEC and LINK_SPEC.
                   1508:        (ASM_FILE_START): No `.globl fltused' if soft-float.
                   1509: 
                   1510: Tue Aug  8 21:50:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1511: 
                   1512:        * varasm.c (const_hash): For constructor, mask TREE_TYPE to HASHBITS
                   1513:        bits and take modulo, so we don't get negative numbers.
                   1514: 
                   1515:        * varasm.c (record_constant_1, compare_constant_1):
                   1516:        Record and compare the width of an integer.
                   1517: 
                   1518:        * varasm.c (assemble_function, assemble_variable, get_or_assign_label):
                   1519:        (force_const_mem): Don't call ASM_OUTPUT_ALIGN if boundary is 1.
                   1520: 
                   1521:        * c-decl.c (duplicate_decls): Consider const and volatile as part of
                   1522:        type when checking for match and when installing new type into OLDDECL.
                   1523: 
                   1524:        * expr.c (do_store_flag): Make sure target fits operand predicate.
                   1525:        Also, omit the AND insn when true-value is 1
                   1526:        and the mode we get is wider than the one we want.
                   1527: 
                   1528:        * genrecog.c (main): Make insn-recog.c include real.h.
                   1529: 
                   1530: Mon Aug  7 16:58:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1531: 
                   1532:        * genemit.c (main): Define `operands' as `emit_operands',
                   1533:        not `recog_operands'.
                   1534: 
                   1535:        * reload1.c (emit_reload_insns): Don't copy back a dead output reg.
                   1536: 
                   1537: Sun Aug  6 13:56:53 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1538: 
                   1539:        * sdbout.c (plain_type_1, sdbout_one_type): Use the main variant.
                   1540:        (sdbout_type_fields): No need to check TREE_ASM_WRITTEN here,
                   1541:        since sdbout_one_type does that.
                   1542: 
                   1543:        * expr.c (do_store_flag): Ensure the CLOBBER doesn't clobber an input.
                   1544: 
                   1545:        * fold-const.c (fold_convert): Attempt to avoid overflow
                   1546:        when converting real to integer.  Use unsigned conversion for
                   1547:        low part; always convert as positive and then change sign;
                   1548:        subtract high part before converting low part.
                   1549:        Also, check for real values out of range for chosen int type;
                   1550:        warn and do not convert.
                   1551: 
                   1552:        * tm-hp9k320.h (CPP_SPEC) [not HPUX_ASM]: Don't define mc68000 here.
                   1553:        (CPP_PREDEFINES): Remove mc68k, add m68k and mc68000.
                   1554:        [HPUX_ASM]: Define CPP_SPEC here as in the other case,
                   1555:        but add __HPUX_ASM__ to each alternative.
                   1556: 
                   1557:        * tm-m68k.h (FUNCTION_EPILOGUE): Call new hook FUNCTION_EXTRA_EPILOGUE.
                   1558:        * tm-altos3068.h (FUNCTION_EXTRA_EPILOGUE): Define it.
                   1559: 
                   1560:        * Makefile: Use $< wherever appropriate.
                   1561:        Also put definitions of customization vars before the comments
                   1562:        saying how to override them.
                   1563: 
                   1564: Sat Aug  5 14:15:39 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1565: 
                   1566:        * i386.md (sne): Typo in opcode name.
                   1567: 
                   1568:        * tree.h (struct tree_identifier): Delete redundant/unused error_locus.
                   1569: 
                   1570: Fri Aug  4 00:04:10 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1571: 
                   1572:        * varasm.c (const_hash, compare_constant_1, record_constant_1):
                   1573:        Compare types only for record constructors, not for array constructors.
                   1574: 
                   1575:        * dbxout.c (dbxout_parms): When outputing parm from home in local slot,
                   1576:        with address from the RTL, don't do big-endian correction on it.
                   1577: 
                   1578:        * c-typeck.c (build_unary_op): Do default conversion for unary +.
                   1579: 
                   1580:        * cccp.c (rescan): Accept comments between macro and its args.
                   1581: 
                   1582:        * c-decl.c (lang_decode_option): -traditional implies writable strings.
                   1583: 
                   1584:        * cccp.c (trigraph_pcp): Make warning msg more accurate.
                   1585: 
                   1586:        * c-typeck.c (c_expand_asm_operands): Delete the default promotion
                   1587:        which was inserted mysteriously since 1.35.
                   1588: 
                   1589:        * global-alloc.c (global_conflicts): Allocate regs_set only once.
                   1590:        Make it twice as big since clobbers are stored twice.
                   1591: 
                   1592:        * sparc.md (block move patterns): Record and use alignment operand.
                   1593:        * out-sparc.c (output_block_move): Get alignment from there.
                   1594:        (output_size_for_block_move): Greatly simplified.
                   1595: 
                   1596:        * tm-i386v.h (PCC_BITFIELD_TYPE_MATTERS): Define it.
                   1597: 
                   1598:        * stor-layout.c (layout_record): Anonymous bitfields don't affect
                   1599:        overall structure alignment, in PCC_BITFIELD_TYPE_MATTERS case.
                   1600: 
                   1601:        * loop.c (strength_reduce): Prevent hard reg from becoming biv or giv.
                   1602: 
                   1603:        * combine.c (subst): Simplify (eq (neg ...) (const_int 0)).
                   1604: 
                   1605: Thu Aug  3 13:08:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1606: 
                   1607:        * cse.c (fold_rtx): For (op var const) special cases, also check 
                   1608:        for constant as first argument.
                   1609: 
                   1610:        * c-decl.c (pushtag): For global_binding_level, make permanent nodes.
                   1611: 
                   1612:        * expr.c (do_store_flag): Put the CLOBBER before the comparison.
                   1613: 
                   1614:        * expr.c (emit_push_insn): Conditionalize recent changes
                   1615:        on no FIRST_PARM_CALLER_OFFSET, so they don't happen on sparc.
                   1616: 
                   1617:        * out-sparc.c (gen_scc_insn):
                   1618:        Don't be confused by CLOBBER emitted by do_store_flag.
                   1619:        Skip past such insns looking for last_insn.
                   1620:        Don't alter last_insn; instead, patch it to a NOTE and emit new insn.
                   1621: 
                   1622:        * varasm.c (const_hash, compare_constant_1, record_constant_1):
                   1623:        For a CONSTRUCTOR, hash/compare/record type as well as elts.
                   1624: 
                   1625:        * cse.c (cse_insn): July 18 change was wrong.
                   1626:        Now, invalidate at the beginning any regs explicitly clobbered
                   1627:        so they will not be substituted for if they appear as inputs.
                   1628:        * sparc.md (movstrsi): Copy addresses to temp regs, then use them.
                   1629: 
                   1630:        * loop.c (record_giv): When comparing life spans for setting
                   1631:        ->forces, use luids consistently, not uids.
                   1632: 
                   1633:        * sparc.md (ashlsi3, ashrsi3, lshrsi3): Truncate constants mod 32.
                   1634: 
                   1635: Wed Aug  2 17:50:30 1989  Richard Stallman  (rms at sugar-bombs)
                   1636: 
                   1637:        * mips.md (patterns to move a subreg): Deleted.
                   1638: 
                   1639: Sun Jul 30 19:23:13 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1640: 
                   1641:        * gcc.c (process_command): Skip `-b' like `-B', in 2nd scan.
                   1642: 
                   1643:        * xm-sunos4.h: Deleted.
                   1644:        * tm-sparc.h, tm-sun3.h: Define LINK_SPEC here instead.
                   1645:        * tm-sun4os3.h: Undef it here.
                   1646:        * tm-sun3os3.h, tm-sun3os3nf.h: New files to undef LINK_SPEC.
                   1647:        * config.gcc: Use those new files where needed.
                   1648: 
                   1649:        * config.gcc: Delete sun3-fpa and sun3-os4-fpa.
                   1650:        * tm-sun3-fpa.h: Deleted.
                   1651: 
                   1652:        * cccp.c (do_include): Mention even non-ex files for -M.
                   1653: 
                   1654:        * out-mips.c (addr_compensate): Handle HImode.
                   1655:        * mips.md (Set HI from subreg of SI rule):
                   1656:        Allow operand in memory.
                   1657: 
                   1658:        * mips.md (cmpqi, cmphi): Patterns deleted.
                   1659:        (cmpsi, cmpsf, cmpdf): Change predicates to register_operand.
                   1660: 
                   1661:        * cexp.y (rule for ?:): Result is unsigned if either operand is.
                   1662: 
                   1663:        * expr.c (emit_push_insn): If PARTIAL > 0, load the partial regs
                   1664:        at the end, in case the rest of the push does a function call.
                   1665: 
                   1666:        * reload1.c (alter_frame_pointer_addresses):
                   1667:        After altering a PLUS, re-fetch CODE before scanning subexps.
                   1668: 
                   1669:        * stmt.c (assign_parms): Don't copy the arg pointer value
                   1670:        if it is also the frame pointer.  If we do copy it,
                   1671:        inhibit REG_EQUIV notes for parms copied into pseudo regs
                   1672: 
                   1673:        * integrate.c (copy_for_inline, copy_rtx_and_substitute):
                   1674:        Set up filename and lineno fields of copy of ASM_OPERANDS.
                   1675: 
                   1676: Sat Jul 29 18:58:49 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   1677: 
                   1678:        * integrate.c (expand_inline_function): Handle struct-value-addr
                   1679:        passed in memory just like that passed in reg:
                   1680:        in either case, translate the pseudo-reg made in
                   1681:        expand_function_start.
                   1682:        (function_cannot_inline_p): Permit inlining in that case.
                   1683:        But reject it if using pcc-style return convention.
                   1684: 
                   1685:        * stor-layout.c (layout_type): Consider STRICT_ALIGNMENT
                   1686:        for ARRAY_TYPE just as for RECORD_TYPE.
                   1687: 
                   1688: Wed Jul 26 12:54:59 1989  Richard M. Stallman  (rms at mipos3)
                   1689: 
                   1690:        * cse.c (fold_rtx): If WIDTH is zero for binary operator,
                   1691:        look at the modes of the original operands.
                   1692: 
                   1693:        * cse.c (cse_insn): Set prev_insn_explicit_cc0, for (set (cc0) INT).
                   1694:        (predecide_loop_entry): Likewise.
                   1695:        (fold_rtx): Look at it, for (if_then_else (cc0) ...).
                   1696: 
                   1697:        * expr.c (expand_builtin): Pass back return value from
                   1698:        __builtin_saveregs.
                   1699: 
                   1700:        * stmt.c (assign_parms): Allow arg pointer reg not to be fixed.
                   1701:        If it is not, copy it to a pseudo reg and use that later on.
                   1702: 
                   1703: Tue Jul 25 15:42:04 1989  Richard M. Stallman  (rms at mipos3)
                   1704: 
                   1705:        * expr.c (expand_builtin): New builtin __builtin_classify_type.
                   1706:        * tree.h, c-decl.c: Additional support.
                   1707: 
                   1708:        * flow.c (mark_used_regs): Treat arg pointer like stack pointer.
                   1709: 
                   1710:        * expr.c (emit_library_call):
                   1711:        Pass (tree)0 as TYPE arg to FUNCTION_ARG, etc.
                   1712: 
                   1713: Mon Jul 24 11:18:10 1989  Richard M. Stallman  (rms at mipos3)
                   1714: 
                   1715:        * loop.c (regs_match_p): Fix braino.
                   1716: 
                   1717:        * integrate.c (copy_for_inline, copy_rtx_and_substitute):
                   1718:        Make ASM_OPERANDS constraint vector be shared like operand vector.
                   1719: 
                   1720:        * xm-iris.h: New file.
                   1721: 
                   1722:        * Makefile (stage4): New target.
                   1723: 
                   1724:        * gnulib2.c (badd, bsub, bmul, bdiv): If want long value from
                   1725:        arithmetic, widen the operands first.
                   1726:        (__div_internal aka bdiv): Rename to __bdiv.
                   1727: 
                   1728:        * sparc.md (seq combination patterns): Fully initialize cc_status.
                   1729: 
                   1730:        * expr.c (emit_push_insn): Like July 19 change, for BLKmode.
                   1731: 
                   1732:        * stmt.c (expand_function_end): Stack-restore for alloca
                   1733:        is now done after the return_label.
                   1734: 
                   1735:        * loop.c (scan_loop): Set MAYBE_NEVER for conditional jump to loopbeg.
                   1736: 
                   1737:        * integrate.c (copy_rtx_and_substitute): Allow mapping of hard regs.
                   1738:        (expand_inline_function): Always create parm_map.
                   1739:        Handle structure value that way if nec. even if no parms.
                   1740:        Otherwise, find the pseudo used in the function to hold the
                   1741:        structure address, and map it to a new pseudo.
                   1742: 
                   1743:        * expr.c (expand_call):
                   1744:        Use mark_addressable to make FNDECL addressable.
                   1745:        * c-typeck.c (mark_addressable): No longer static.
                   1746: 
                   1747:        * cse.c (cse_insn): Modify last change: don't canon_reg
                   1748:        for hard regs inside clobbers.
                   1749: 
                   1750:        * expr.c (expand_assignment): ALIGN arg to store_field comes from
                   1751:        the structure, not from the value stored.
                   1752: 
                   1753: Fri Jul 21 16:23:45 1989  Richard M. Stallman  (rms at mipos3)
                   1754: 
                   1755:        * stmt.c (warn_if_unused_value): Don't warn for a cast
                   1756:        around a MODIFY_EXPR.
                   1757: 
                   1758:        * tm-hp9k320.h (PCC_STATIC_STRUCT_RETURN): Undefine it.
                   1759:        (CPP_PREDEFINES): Add some.
                   1760: 
                   1761:        * combine.c (simplify_and_const_int):
                   1762:        Simplify (and (ashiftrt (zero_extend FOO) N) M).
                   1763: 
                   1764:        * optabs.c (expand_binop): When widening,
                   1765:        for some operations we need not actually extend.
                   1766: 
                   1767: Thu Jul 20 16:16:35 1989  Richard M. Stallman  (rms at mipos3)
                   1768: 
                   1769:        * Makefile (insn-emit.o): Depend on insn-codes.h.
                   1770: 
                   1771:        * stmt.c (check_for_full_enumeration_handling): 
                   1772:        Handle all cases for TYPE_NAME of enum type.
                   1773: 
                   1774: Wed Jul 19 17:00:39 1989  Richard M. Stallman  (rms at mipos3)
                   1775: 
                   1776:        * fold-const.c (fold_convert): Don't fail to force_fit_type.
                   1777: 
                   1778:        * expr.c (emit_push_insn): When pushing only part of scalar on stack,
                   1779:        adjust stack offset not to count the words not pushed.
                   1780: 
                   1781:        * stmt.c (expand_function_end): Always put return structure address
                   1782:        in return register.
                   1783: 
                   1784:        * c-typeck.c (process_init_constructor): Assume 0 for nameless field.
                   1785: 
                   1786:        * recog.c (general_operand, memory_operand):
                   1787:        Check validity of mem address using the mode of the MEM.
                   1788: 
                   1789:        * fixincludes: When calling egrep, use redirect, not -s.
                   1790: 
                   1791: Tue Jul 18 11:18:55 1989  Richard M. Stallman  (rms at mipos3)
                   1792: 
                   1793:        * Makefile (bootstrap*): Pass value of libdir down.
                   1794: 
                   1795:        * cse.c (cse_insn): Do canon_reg on any CLOBBERs and USEs.
                   1796: 
                   1797:        * cse.c (cse_insn): Don't use no_labels_between_p to check
                   1798:        for jump to following label; find following label and compare.
                   1799: 
                   1800:        * combine.c (try_combine): Don't substitute into subreg(x)=y
                   1801:        if modes of x and y are not tieable.
                   1802: 
                   1803:        * out-i386.c (call_top_dead_p): Don't fail to check
                   1804:        the rtx code of the insns themselves.
                   1805: 
                   1806:        * i386.md (tstsf, tstdf): Don't discard TOS if not dead.
                   1807: 
                   1808:        * stupid.c: Don't use regs with PRESERVE_DEATH_INFO_REGNO_P
                   1809:        for pseudos which live across jumps or labels.
                   1810:        (stupid_life_analysis): Update last_jump_suid, last_label_suid.
                   1811:        (stupid_mark_refs): Use those to set reg_crosses_blocks.
                   1812:        (stupid_find_reg): Check that data, passed from stupid_life_analysis.
                   1813: 
                   1814:        * toplev.c (main): Avoid using caddr_t.
                   1815: 
                   1816:        * mips.md (inverted bgeu peephole): Typo in opcode.
                   1817: 
                   1818: Mon Jul 17 12:29:45 1989  Richard M. Stallman  (rms at mipos3)
                   1819: 
                   1820:        * i386.md (mulb patterns): Turned off due to assembler bug.
                   1821: 
                   1822:        * rtl.c (read_name): Use 0, not NULL, for character.
                   1823: 
                   1824:        * alliant.md (movqi): Typos in mov opcodes.
                   1825: 
                   1826:        * tm-sparc.h, tm-spur.h (CONST_DOUBLE_OK_FOR_LETTER_P):
                   1827:        Use CONST_DOUBLE_LOW, etc. 
                   1828: 
                   1829:        * stmt.c (expand_function_end): Check value of EXIT_IGNORE_STACK,
                   1830:        not just whether defined.
                   1831: 
                   1832:        * i386.md (seq, etc.): New patterns.
                   1833:        * expr.c (do_store_flags): If result is wrong mode, 
                   1834:        ensure rest of bits are cleared.
                   1835:        Before storing low part of TARGET, emit a CLOBBER for it.
                   1836: 
                   1837:        * i386.md (load address): Use an immediate add if possible.
                   1838: 
                   1839:        * i386.md (ashlsi3): Don't generate leal; shift is faster.
                   1840: 
                   1841:        * Now struct_value_rtx is 0 to treat it as a parm.
                   1842:        * expr.c (expand_call): Implement that.
                   1843:        * integrate.c (expand_inline_function): Don't freak out.
                   1844:        * tm-apollo68.h (STRUCT_VALUE): Make it 0.
                   1845: 
                   1846:        * On 386, called function must pop the structure value address.
                   1847:        * tm-i386.h (STRUCT_VALUE): Don't change this.
                   1848:        Address is now pushed but not counted as a parm.
                   1849:        * out-i386.c (function_epilogue): Use ret $4 to pop that address.
                   1850:        * output.h: Declare the current_function_... variables.
                   1851:        * final.c: Include output.h.
                   1852: 
                   1853:        * varasm.c (make_decl_rtl): Insert missing `else', validating reg decl.
                   1854: 
                   1855: Fri Jul 14 14:12:17 1989  Richard M. Stallman  (rms at mipos3)
                   1856: 
                   1857:        * out-sparc.c, out-spur.c (output_move_double):
                   1858:        Fixed typo, addreg0 => addreg1.
                   1859: 
                   1860:        * c-decl.c (lang_decode_option): Handle -fshort-enums.
                   1861:        (finish_enum): In that case, give enum minimum number of bytes.
                   1862:        * toplev.c (main): Default flag_short_enums.
                   1863:        * toplev.c, flags.h (flag_short_enums, flag_signed_char): 
                   1864:        Define those flags here, not in c-decl.c and c-tree.h.
                   1865: 
                   1866:        * i386.md (mulqi3, umulqi3): New patterns.
                   1867: 
                   1868:        * c-convert.c (convert_to_integer): Tighter restrictions on
                   1869:        distributing truncation through max, min, and multiplication.
                   1870:        If operands were extended from unsigned, make the operation
                   1871:        unsigned.
                   1872: 
                   1873:        * cccp.c (main): Fix bug where #include <...>, when -I- was used,
                   1874:        failed to search standard dirs and/or searched some dirs
                   1875:        intended only for #include "...".
                   1876: 
                   1877:        * tm-mips.h (FUNCTION_PROLOGUE,FUNCTION_EPILOGUE):
                   1878:        Increment push_loc after store or load, not before.
                   1879: 
                   1880: Thu Jul 13 11:24:30 1989  Richard M. Stallman  (rms at mipos3)
                   1881: 
                   1882:        * emit-rtl.c (add_insn_after): Don't update last_insn
                   1883:        if insn is in a sequence.  Instead, update end of sequence.
                   1884: 
                   1885:        * stmt.c (fixup_var_refs): Update end of stacked sequence.
                   1886: 
                   1887:        * stmt.c (expand_function_start): Set result rtl before assign_parms.
                   1888: 
                   1889:        * optabs.c (emit_unop_insn): Set PREV_INSN after preliminaries.
                   1890: 
                   1891:        * stmt.c (warn_if_unused_value): Do CONVERT_EXPR like NOP_EXPR.
                   1892: 
                   1893:        * stmt.c (expand_function_start): Make sure parm_birth_insn
                   1894:        is a NOTE.
                   1895: 
                   1896:        * Makefile (clean): Delete tmp-insn-*.
                   1897: 
                   1898: Wed Jul 12 14:24:12 1989  Richard M. Stallman  (rms at mipos3)
                   1899: 
                   1900:        * i386.md (mulqi3): Restrict operand 2 to `q' reg.
                   1901: 
                   1902:        * reload1.c (choose_reload_regs): Check HARD_REGNO_MODE_OK
                   1903:        for regs to be inherited.
                   1904:        Also check HARD_REGNO_MODE_OK at end for modes of both
                   1905:        reload_in and reload_out as well as reload_mode.
                   1906: 
                   1907:        * Makefile (maketest): Update for config subdir.
                   1908: 
                   1909: Tue Jul 11 16:29:57 1989  Richard M. Stallman  (rms at mipos3)
                   1910: 
                   1911:        * integrate.c (copy_decl_tree): Copy TREE_USED of each LET_STMT.
                   1912: 
                   1913:        * make-cc1.com: Changes by Angel Li.
                   1914:        Define variables CC, CFLAGS, LDFLAGS, LIBS.
                   1915:        Use LIBR library, not LIB.  Specify a /INC in CFLAGS.
                   1916:        Use MCR to run the gen* files.  Add some comments.
                   1917:        * make-cccp.com: Similar.
                   1918:        * config-gcc.com: New file.
                   1919: 
                   1920:        * stmt.c (assign_parms): Compute parm alignment from passed type.
                   1921: 
                   1922:        * c-typeck.c (actualparameterlist): Instead of truncating
                   1923:        and then promoting for PROMOTE_PROTOTYPES, go straight to int.
                   1924: 
                   1925:        * c-parse.y (setspecs): Save old current_declspecs on a stack.
                   1926:        (decl, component_decl): Restore from that stack.
                   1927: 
                   1928: Wed Jul  5 15:01:00 1989  Richard Stallman  (tiemann at yahi)
                   1929: 
                   1930:        * tm-aix386.h, xm-aix386.h: New files.
                   1931: 
                   1932:        * loop.c (check_dbra_loop): Handle either test or compare
                   1933:        for insn two before loop end; detect and reject anything else.
                   1934: 
                   1935:        * expr.c (expand_call, expand_builtin): If alloca is done,
                   1936:        set current_function_calls_alloca.
                   1937:        * stmt.c (expand_function_end): If so, generate code to save and
                   1938:        restore the stack pointer, if not EXIT_IGNORE_STACK.
                   1939: 
                   1940:        * ns32k.md (movsi): Fixes for moving from fp or sp.
                   1941: 
                   1942:        * tm-mips.h (ASM_OUTPUT_ASCII): Start new .ascii every 256 chars.
                   1943: 
                   1944: Tue Jul  4 11:01:00 1989  Richard Stallman  (tiemann at yahi)
                   1945: 
                   1946:        * reload1.c (choose_reload_targets): Don't depend on
                   1947:        reload_spill_index when cancelling invalid inheritance.
                   1948:        Also, abort if trying to preserve death info
                   1949:        on a spill reg used in operand addressing.
                   1950: 
                   1951:        * fold-const.c (fold): Don't fold "foo"[n] here.
                   1952:        * expr.c (expand_expr): Do it here.
                   1953:        Handle wide strings correctly.
                   1954: 
                   1955:        * i386.md (movsf,movdf): Disallow mem-mem moves.
                   1956:        Enable mem-to-reg moves.
                   1957: 
                   1958:        * c-decl.c (finish_{struct,enum}): Warn if inside parm decls.
                   1959:        (in_parm_level_p, declare_parm_level): Record when inside.
                   1960:        * c-parse.y (parmlist, parmlist_or_identifiers): Call
                   1961:        declare_parm_level.
                   1962: 
                   1963:        * c-decl.c (parmlist_tags_warning): Revise warning message text.
                   1964: 
                   1965:        * tm-hp9k320.h (ASM_SPEC): Pass -V switch to assembler.
                   1966: 
                   1967:        * tm-sun386.h (ASM_START_FILE): Truncate filename to 14 chars.
                   1968: 
                   1969:        * c-typeck.c (decl_constant_value): Use only literal values.
                   1970: 
                   1971: Sat Jul  1 17:29:54 1989  Richard Stallman  (tiemann at yahi)
                   1972: 
                   1973:        * integrate.c (copy_rtx_and_substitute): Don't make nested SUBREGs.
                   1974: 
                   1975:        * stmt.c (expand_function_start): Set new global
                   1976:        current_function_returns_pointer.
                   1977: 
                   1978:        * stmt.c (get_frame_size): Return the size, not the offset.
                   1979:        * integrate.c (expand_inline_function): When setting FP_DELTA,
                   1980:        compensate for this change.
                   1981:        * tm-alliant.h,tm-mips.h,tm-sparc.h,tm-tahoe.h
                   1982:        (FUNCTION_PROLOGUE,FUNCTION_EPILOGUE): Compensate.
                   1983: 
                   1984:        * out-mips.c (function_arg): Return 0 for BLKmode.
                   1985: 
                   1986:        * tm-mips.h (FUNCTION_INCOMING_ARG): Delete; no register windows.
                   1987:        * out-mips.c (function_inarg): Delete; no longer used.
                   1988: 
                   1989:        * mips.md (addsi3): Use register_operand for operands 0,1.
                   1990:        (load address): New pattern, following movsi.
                   1991:        (fix_trunc*): Use trunc insn, not cvt.
                   1992:        (cmpfs + bgt peephole): Operands were backwards in template.
                   1993: 
                   1994:        * gcc.c (main): Record in explicit_link_files which input files go
                   1995:        straight to linker.  If linker is not run, complain about them.
                   1996:        (execute): Increment execution_count, to show we were called.
                   1997: 
                   1998:        * gcc.c (validate_all_switches): Check ASM_SPEC, CC1_SPEC, etc.,
                   1999:        so we find all switches that could be valid.
                   2000: 
                   2001:        * varasm.c (output_constructor): Position fields according to
                   2002:        DECL_OFFSET; don't try to compute alignment here.
                   2003: 
                   2004:        * tm-sparc.h (PCC_BITFIELD_TYPE_MATTERS): Define this.
                   2005: 
                   2006:        * reload1.c (emit_reload_insns): Fix stupid error in last change.
                   2007: 
                   2008:        * c-decl.c (duplicate_decls): If redeclaring builtin, give error is
                   2009:        type mismatched; otherwise warn only if -W.
                   2010: 
                   2011:        * jump.c (jump_back_p): Verify that PREV is not null.
                   2012: 
                   2013: Mon Jun 26 13:50:28 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2014: 
                   2015:        * reload1.c (choose_reload_regs): If number of reloads needing
                   2016:        spill regs exceeds n_spills, don't inherit any reloads.
                   2017: 
                   2018:        * sdbout.c (sdbout_record_type_name): Dumb error in last change.
                   2019: 
                   2020:        * reload1.c (emit_reload_insns): Extend last change: don't use
                   2021:        equiv reg if reg is in use at same stage of insn, either.
                   2022: 
                   2023: Sun Jun 25 00:00:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2024: 
                   2025:        * reload1.c (emit_reload_insns): Don't use an equivalent register
                   2026:        to reload from, if that register was used for reloading
                   2027:        earlier in this insn.
                   2028: 
                   2029:        * sdbout.c (sdbout_record_type_name): Handle a TYPE_DECL as the
                   2030:        type name.  Get rid of TYPE_TAG_NAME as separate macro.
                   2031: 
                   2032:        * optabs.c (emit_cmp_insn): Args to memcmp are addresses, not blocks.
                   2033: 
                   2034:        * reload1.c (choose_reload_regs): Typo, clearing reload_override_in.
                   2035: 
                   2036:        * tm-i386.h: Add register classes SIREG and DIREG.
                   2037:        (enum reg_class, REG_CLASS_NAMES): Define class names.
                   2038:        (REGNO_REG_CLASS, REG_CLASS_CONTENTS): Define their contents.
                   2039:        (REG_CLASS_FROM_LETTER): Define letters `S' and `D'.
                   2040: 
                   2041: Sat Jun 24 00:17:16 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2042: 
                   2043:        * c-decl.c (keep_next_level): New function.
                   2044:        (struct binding): New slot `keep' says make a LET_STMT for this level.
                   2045:        (pushlevel, poplevel): Implement that.
                   2046:        * c-parse.y (stmt exprs): Call keep_next_level.
                   2047: 
                   2048:        * sdbout.c (plain_type_1): Handle REFERENCE_TYPE, METHOD_TYPE.
                   2049:        Correct for size less than 0.
                   2050:        (plain_type): Correct for size less than 0.
                   2051: 
                   2052:        * global-alloc.c (mark_reg_set): For CLOBBERs, call mark_reg_clobber.
                   2053: 
                   2054:        * reload1.c (order_regs_for_reload): Among regs explicitly used,
                   2055:        prefer those used less often.
                   2056: 
                   2057:        * reload1.c (choose_reload_regs): If we find alternate place
                   2058:        to reload from, verify it after all reloads assigned.
                   2059:        New variable reload_override_in used for this.
                   2060: 
                   2061:        * combine.c (record_dead_and_set_regs): Look inside SIGN_EXTEND and
                   2062:        STRICT_LOW_PART for place being set.
                   2063:        (subst): When using reg_last_set to find what a register contains,
                   2064:        verify the entire register was set.
                   2065: 
                   2066:        * toplev.c (rest_of_decl_compilation): Report invalid register name.
                   2067: 
                   2068: Fri Jun 23 13:19:41 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2069: 
                   2070:        * tm-hp9k3bsd.h: New file.
                   2071:        * config.gcc: New target hp9k320-bsd.
                   2072: 
                   2073:        * gcc.c (record_temp_file): Don't add a name twice to one queue.
                   2074: 
                   2075:        * stmt.c (expand_expr_stmt): Call warn_if_unused_value.
                   2076:        (warn_if_unused_value): Code extracted from expand_expr_stmt.
                   2077:        Recurse to handle COMPOUND_EXPR.  Don't warn about COND_EXPR.
                   2078: 
                   2079:        * tm-encore.h (DBX_REGISTER_NUMBER): Override tm-ns32k.h;
                   2080:        return operand unchanged.
                   2081: 
                   2082:        * reload1.c (emit_reload_insns): Don't use recog_memoized
                   2083:        on an asm.
                   2084: 
                   2085:        * jump.c (delete_insn): Update last_insn.
                   2086:        * emit-rtl.c (set_last_insn): New function.
                   2087: 
                   2088:        * reload1.c (reload): Put a note at end of insn chain.
                   2089: 
                   2090:        * gcc.c: Put cpp output of .S file into a .s file.
                   2091: 
                   2092: Thu Jun 22 22:14:35 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2093: 
                   2094:        * optabs.c (expand_binop, expand_unop): Emit queue before library call.
                   2095:        It is done within emit_library_call, and cse screws up if there is a
                   2096:        queued insn in the middle of a cse-able sequence.
                   2097: 
                   2098: Wed Jun 21 11:57:22 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2099: 
                   2100:        * tm-mips.h (CPP_PREDEFINES): Define -Dunix.
                   2101: 
                   2102:        * reload.c (combine_reloads): Combined reload needed for entire insn.
                   2103: 
                   2104:        * c-parse.y (yylex): Braino checking for out-of-range escape seq.
                   2105: 
                   2106:        * stor-layout.c (layout_union): Handle PCC_BITFIELD_TYPE_MATTERS.
                   2107:        (layout_struct): Don't let a bitfield cross the storage unit
                   2108:        of its type, if PCC_BITFIELD_TYPE_MATTERS.
                   2109: 
                   2110: Tue Jun 20 00:03:48 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2111: 
                   2112:        * varasm.c (get_or_assign_label): Let CONSTANT_ALIGNMENT specify
                   2113:        alignment of the constant.
                   2114:        CONSTANT_ALIGNMENT is a new optional macro.
                   2115: 
                   2116:        * varasm.c (force_const_mem, get_or_assign_label):
                   2117:        Make buffer bigger.
                   2118: 
                   2119:        * toplev.c (print_target_switch_defaults): New fn called for -version.
                   2120: 
                   2121:        * toplev.c (compile_file): Detect error closing output file.
                   2122: 
                   2123:        * stor-layout.c (fixup_unsigned_type): Don't shift by 32.
                   2124: 
                   2125:        * stmt.c (emit_case_nodes): Pass UNSIGNEDP along to emit_cmp_insn.
                   2126: 
                   2127:        * stmt.c (expand_end_case): If index is narrow and cannot be
                   2128:        directly compared, widen it just once.
                   2129: 
                   2130:        * c-parse.y (yylex): Support multi-character constants.
                   2131:        Thorough rewrite of char constant parsing.
                   2132: 
                   2133:        * c-decl.c (pushdecl): Replace local extern function decl with
                   2134:        previous global decl if latter is inline, or builtin, or has
                   2135:        more arg type info.
                   2136: 
                   2137:        * hard-params.c (xmalloc): Define it, for alloca.c.
                   2138: 
                   2139:        * tm-hp9k320.h (STANDARD_STARTFILE_PREFIX): Override -D in Makefile.
                   2140: 
                   2141:        * expmed.c (store_fixed_bit_field): Avoid shift by 32.
                   2142: 
                   2143:        * stmt.c (expand_function_start): Emit a NOTE_INSN_FUNCTION_BEG.
                   2144:        * final.c (final_scan_insn): For SDB output, do the
                   2145:        sdbout_begin_function at that note.
                   2146: 
                   2147:        * reload1.c (choose_reload_regs): If a reload reg inherits
                   2148:        from a previous reload, verify safety after all reloads are assigned.
                   2149: 
                   2150:        * c-decl.c (build_enumerator): Remove no-op casts.
                   2151: 
                   2152:        * reload.c (find_reloads): If an earlyclobber operand matches
                   2153:        an input operand it is constrained to match, that's not a problem.
                   2154:        If an earlyclobber operand loses due to earlyclobber, its matching
                   2155:        input operand also loses.
                   2156: 
                   2157:        * reload1.c (choose_reload_regs): Don't use result of find_equiv_reg
                   2158:        if that reg is used for reloading in an earlier part of the insn.
                   2159: 
                   2160:        * cse.c (fold_rtx): If WIDTH is 0, don't try sign-extending ARG0, ARG1.
                   2161: 
                   2162:        * Makefile (hard-params*): Use $(OLDCC).
                   2163: 
                   2164:        * c-typeck.c (c_alignof): No warning for -pedantic.
                   2165: 
                   2166:        * c-parse.y (readescape): Don't have both error and warning
                   2167:        on one hex escape.
                   2168: 
                   2169:        * c-parse.y (yylex): Treat vertical tab as white space.
                   2170:        (skip_white_space): Likewise.
                   2171: 
                   2172:        * c-parse.y (datadef): If pedantic, warn for stray semicolon.
                   2173: 
                   2174:        * expr.c (expand_increment): Pass accurate unsignedp arg
                   2175:        to expand_binary_op.
                   2176: 
                   2177: Mon Jun 19 13:36:20 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2178: 
                   2179:        * config.gcc (news, news-gas): Use xm-m68k.h.
                   2180: 
                   2181:        * final.c (output_asm_label, output_addr_const): Make buf bigger.
                   2182: 
                   2183:        * cexp.y (main): Handle EOF on input.
                   2184:        (lookup, warning): Provide as a dummy.
                   2185:        (is_idchar, is_idstart): Declare as unsigned char.
                   2186: 
                   2187:        * cexp.y (parse_escape): Use TARGET_NEWLINE, etc., as values.
                   2188:        Support hex escapes.  Warn if octal or hex escape doesn't fit in char.
                   2189: 
                   2190:        * cexp.y (yylex): Sign-extend char constants if appropriate.
                   2191: 
                   2192:        * genemit.c: Make insn-emit.c include insn-flags.h.
                   2193: 
                   2194:        * gcc.c: Move record_temp_file past page which declares vflag.
                   2195: 
                   2196:        * integrate.c (expand_inline_function): If copying an insn with
                   2197:        a REG_EQUIV note, make a similar note.
                   2198: 
                   2199:        * Allow reload regs to be reused for parts of an insn.
                   2200:        * reload.c (find_reloads): Classify each reload for which part
                   2201:        of the insn it is needed in.
                   2202:        (find_reloads_address, etc.): Pass down the overall operand
                   2203:        that this is part of, to record it on address reloads.
                   2204:        (push_reload): Record that for each reload.
                   2205:        * reload1.c (reload): Compute maximum needs of any part of the insn.
                   2206:        (choose_reload_regs): Part of old choose_reload_targets.
                   2207:        Hairier criteria for inheriting reloads and for which ones are
                   2208:        available for the next insn to inherit.
                   2209:        (emit_reload_insns): The rest of old choose_reload_targets.
                   2210:        Emit reload insns in proper order according to where they are needed.
                   2211:        * Record `reload_reg_in_use' separately for each part of the insn.
                   2212:        (mark_reload_reg_in_use): New function.
                   2213:        (reload_reg_free_p, reload_reg_free_before_p): New functions.
                   2214:        (reload_reg_reaches_end_p): New function.
                   2215: 
                   2216:        * expr.c (expand_expr): Emit queue in X+=(Y?Z:A) optimization.
                   2217: 
                   2218:        * rtlanal.c (rtx_equal_p): Check vectors have same length.
                   2219: 
                   2220: Sun Jun 18 12:16:14 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2221: 
                   2222:        * stmt.c (expand_expr_stmt): Maybe warn if top-level operator
                   2223:        makes an unused result.
                   2224: 
                   2225:        * gcc.c (delete_temp_files, delete_failure_queue):
                   2226:        If -v, report failures in unlink.
                   2227: 
                   2228:        * Makefile (includes): New target to run fixincludes.
                   2229:        (install): Swap arms of if-statement.
                   2230: 
                   2231: Sat Jun 17 12:41:53 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2232: 
                   2233:        * stor-layout.c (layout_union): Arg to error_with_decl was missing.
                   2234: 
                   2235:        * ns32k.md (movsf): Use CONST_DOUBLE_LOW to extract from CONST_DOUBLE.
                   2236: 
                   2237:        * loop.c (consec_sets_giv): Change type of force, force2.
                   2238: 
                   2239:        * combine.c (dump*): Declare arg as FILE*.
                   2240: 
                   2241:        * Makefile (clean): Delete hard-params.
                   2242: 
                   2243:        * flow.c (life_analysis): Use a special obstack for the temporary
                   2244:        regsets.
                   2245: 
                   2246:        * m68k.md (clr pattern): On 68000, use moveq to clear data reg.
                   2247: 
                   2248:        * gvarargs.h: File varargs.h renamed.
                   2249:        The old name conflicted with <varargs.h>, now that -I. is used.
                   2250:        * tree.c, expr.c, emit-rtl.c: Change #include commands.
                   2251:        * Makefile (install): Install gvarargs.h under name varargs.h.
                   2252:        * gcc.c: Include gvarargs.h, not system's varargs.h.
                   2253: 
                   2254:        * Makefile: Use -I$(srcdir) before -I$(srcdir)/config.
                   2255:        * config/tm.h: Deleted; didn't work if config was a symlink.
                   2256: 
                   2257:        * cse.c (cse_insn): Record location of inner_dest
                   2258:        so it can be replaced properly if a new MEM rtx is made.
                   2259: 
                   2260: Fri Jun 16 14:17:20 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2261: 
                   2262:        * make-cc1.com: Compile and link rtlanal.c.
                   2263: 
                   2264:        * c-typeck.c (build_array_ref): Call fold on the array ref.
                   2265:        * fold-const.c (fold): Simplify array ref of string constant.
                   2266: 
                   2267:        * stmt.c (expand_asm_operands): Fix error message.
                   2268: 
                   2269:        * Makefile (gnulib2): Remove old members before compiling new.
                   2270:        Fix stupid errors.
                   2271:        * gnulib2.c (__cmpdi2, __ucmpdi2): Typos in names of interface unions.
                   2272: 
                   2273:        * genconfig.c (main): Don't write MAX_CLOBBERS_PER_INSN; obsolete.
                   2274:        Add 3 to MAX_RECOG_OPERANDS.
                   2275: 
                   2276:        * cse.c (fold_cc0): Extra arg specifies machine mode.
                   2277:        Callers changed.
                   2278:        (cse_insn): Record original mode of each src for this purpose.
                   2279: 
                   2280: Thu Jun 15 12:35:18 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2281: 
                   2282:        * gnulib2.c (_cmpdi2, _ucmpdi2): Moved here from gnulib.c.
                   2283:        Use long long for argument type.
                   2284: 
                   2285:        * rtlanal.c (may_trap_p): Moved here from loop.c.
                   2286:        Return 1 for division by explicit zero.
                   2287: 
                   2288:        * reload1.c (eliminate_frame_pointer, alter_frame_pointer_addresses):
                   2289:        Rerecognize insns which are changed by this.
                   2290: 
                   2291:        * i386.md (call_value): Don't return prematurely.
                   2292: 
                   2293:        * alliant.md (movqi): Handle moving Aregs to mem and vice versa.
                   2294:        (bftst -> btst): Restrict to bitpos less than 8
                   2295:        so operand may be non-offsettable.
                   2296:        (nop): New pattern.
                   2297:        (return): Was disabled; now deleted.
                   2298:        * tm-alliant.h (PRINT_OPERAND_PUNCT_VALID_P): Define it.
                   2299:        * out-alliant.c (output_btst): Same change as in out-m68k.c
                   2300: 
                   2301:        * alliant.md, out-alliant.c: Offsetable -> offsettable.
                   2302: 
                   2303:        * c-parse.y (rule for stmt_exprs): Make the LET_STMT volatile. 
                   2304: 
                   2305:        * c-decl.c (duplicate_decls): Don't save inline function data
                   2306:        from previous definition if a new *definition* is seen.
                   2307: 
                   2308:        * integrate.c (access_parm_map): Handle subregs and constants.
                   2309: 
                   2310:        * stmt.c (expand_return): Don't crash if DECL_RTL (DECL_RESULT()) is 0.
                   2311: 
                   2312:        * tm-tahoe.h (LONGJMP_RESTORE_FROM_STACK): Define it.
                   2313: 
                   2314:        * tm-mips.h (CONSTANT_P): Deleted; duplicates rtl.h.
                   2315: 
                   2316: Fri Jun  9 01:39:30 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2317: 
                   2318:        * Makefile (float.h): Avoid using $(MAKE).
                   2319: 
                   2320:        * Don't cram two things into STMT_BODY of a LET_STMT.
                   2321:        * tree.h (struct bind_stmt): New field, subblocks.
                   2322:        (STMT_SUBBLOCKS): New macro to access it.
                   2323:        * print-tree.c (walk): Print new field.
                   2324:        * tree.c (build_let_stmt): Store the old BODY arg into subblocks field.
                   2325:        * c-parse.y (stmt expr rule): Put rtl expr alone into body field.
                   2326:        * dbxout.c (dbxout_block): Recurse on subblocks, not body.
                   2327:        * sdbout.c, symout.c: Likewise.
                   2328:        * integrate.c (copy_decl_tree): Likewise.
                   2329:        * stmt.c (setjmp_protect, uninitialized_vars_warning): Likewise.
                   2330:        * expr.c (expand_expr): For LET_STMT, simply use its body.
                   2331: 
                   2332:        * machmode.def: Add sixth arg to each entry.
                   2333:        * tree.h, rtl.h, rtl.c: Add arg to DEF_MACHMODE.
                   2334:        * rtl.h (GET_WIDER_MODE): New macro; table in rtl.c.
                   2335:        * expr.c (expand_expr): Use that for widening multiply.
                   2336: 
                   2337:        * stmt.c (fixup_var_refs_1): When converting MEM to QImode for
                   2338:        bit field, adjust the address if possible to make bitpos
                   2339:        less than 8.
                   2340:        * m68k.md (bftst -> btst): Restrict to bitpos less than 8
                   2341:        so operand may be non-offsettable.
                   2342: 
                   2343:        * cccp.c (do_line): Accept and pass on 3rd arg for enter or leave file.
                   2344: 
                   2345:        * out-m68k.c (output_btst): Handle COUNT bigger than size of unit.
                   2346: 
                   2347:        * cccp.c (CHECK_DEPTH): Macro to detect instack overflow.
                   2348:        (finclude, macroexpand, expand_to_temp_buffer): Use that.
                   2349: 
                   2350:        * cccp.c (rescan): Don't check for disabled macro if traditional.
                   2351:        (macroexpand): Don't disable macro if traditional.
                   2352: 
                   2353:        * sdbout.c (sdbout_one_type): Take out last change; assembler barfs.
                   2354: 
                   2355:        * c-parse.y (maybe_attribute): Eliminate #-syntaxes.
                   2356:        Make ATTRIBUTE the name for __attribute.
                   2357: 
                   2358:        * c-parse.gperf: Add __attribute{,__} and __signed{,__}.
                   2359:        * c-parse.y: Install results of that change.
                   2360: 
                   2361:        * Fix bug in sizeof ({...}).
                   2362:        * c-decl.c (poplevel): Set TREE_USED.  Return the LET_STMT.
                   2363:        * c-parse.y (stmt-expr rule): Put the RTL_EXPR in the LET_STMT,
                   2364:        clear its TREE_USED, and use it as the result.
                   2365:        * expr.c (expand_expr): Allow LET_STMT as an expr.
                   2366:        Set its TREE_USED and expand the TREE_VALUE of its body.
                   2367:        * dbxout.c (dbxout_block): Ignore LET_STMT if TREE_USED not set.
                   2368:        * sdbout.c, symout.c: Likewise.
                   2369: 
                   2370: Thu Jun  8 00:06:36 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2371: 
                   2372:        * c-parse.y (yylex): Extend ERANGE-inhibitor for 0.0
                   2373:        to 0.0e0 as well.
                   2374: 
                   2375:        * flow.c (life_analysis): Prevent allocation of regs live at setjmp
                   2376:        on certain machines.  Controlled by LONGJMP_RESTORE_FROM_STACK.
                   2377:        Sets reg_live_length to -1.
                   2378:        * local-alloc.c (block_alloc): Be prepared for that.
                   2379:        * tm-vax.h (LONGJMP_RESTORE_FROM_STACK): Define it.
                   2380: 
                   2381:        * gnulib2.c (all interfaces): Declare args and values as long long,
                   2382:        and split them using unions.
                   2383: 
                   2384:        * loop.c (check_dbra_loop): Don't reverse loop if there are two
                   2385:        refs to varying addresses.  Consider foo[i] = foo[i-1].
                   2386:        (count_nonfixed_refs): Subroutine to count them.
                   2387: 
                   2388:        * cexp.y: Distinguish signed and unsigned.
                   2389:        An integer value is now represented by a struct.
                   2390:        All rules for arithmetic changed.
                   2391:        (yylex): Adapt to change in yylval data type.
                   2392: 
                   2393:        * limits.h (LONG_MIN): Make sure it's a signed long.
                   2394: 
                   2395:        * sdbout.c (sdbout_one_type): Output types of fields first,
                   2396:        if they are structs.  Don't go through pointers.
                   2397:        (sdbout_field_types): Subroutine for that
                   2398: 
                   2399: Wed Jun  7 13:00:44 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2400: 
                   2401:        * fixincludes: Switch to /usr/include before doing vuid_event.h.
                   2402:        Use $2 as output directory for sed.
                   2403: 
                   2404:        * tm-i386.h (FUNCTION_PROFILER): Put counter address in %edx.
                   2405:        * tm-i386v.h (LIB_SPEC): Use -L/usr/lib/libp if profiling.
                   2406: 
                   2407:        * expr.c (expand_increment): Typo testing for BImode component.
                   2408: 
                   2409:        * convex changes from csmith:
                   2410:        * tm-convex.h: use EXTRA_SECTIONS to do .bss.
                   2411:        out-convex.c: set_section, align_section are now unused.
                   2412:        * convex.md: add pattern to pick an A-reg destination for sums
                   2413:        whose source involves a dedicated A reg (frame or arg pointer)
                   2414:        * convex.md: immediate and, or, xor instructions store a 32-bit
                   2415:        result.  Fix instructions that assumed it was 64.
                   2416: 
                   2417:        * mips.md (probe): New pattern to create stack space.
                   2418: 
                   2419:        * Makefile (float.h): Ignore errors from hard-params.
                   2420:        Specify ./ to run it.
                   2421: 
                   2422: Tue Jun  6 15:45:27 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2423: 
                   2424:        * out-tahoe.c: Rename `offsetable' to `offsettable'.
                   2425: 
                   2426:        * tahoe.md (nop): New pattern.
                   2427: 
                   2428:        * i386.md (umul...): Constrain operand 1 as `0', not `a'.
                   2429:        `a' sometimes wanted two a-regs for operands 0 and 1.
                   2430: 
                   2431:        * cccp.c: Forward-declare some structs.
                   2432: 
                   2433:        * c-decl.c: Rearrange fcn fwd decls and struct decls.
                   2434: 
                   2435:        * expr.c: Move some fcn fwd decls after structs their args use.
                   2436:        * genpeep.c, genextract.c: Likewise.
                   2437: 
                   2438:        * loop.c: Forward-declare some structs.
                   2439: 
                   2440:        * stmt.c: Move decls of structs before those of static functions.
                   2441: 
                   2442:        * loop.c (strength_reduce): Delete extra arg to check_eliminate_biv.
                   2443: 
                   2444:        * integrate.c (expand_inline_function): Supply missing arg
                   2445:        to convert_to_mode.
                   2446: 
                   2447:        * gcc.c (handle_braces): Supply missing arg to do_spec_1.
                   2448: 
                   2449:        * explow.c (lookup_static_chain): Accept a context arg.
                   2450: 
                   2451:        * expmed.c (store_split_bit_field): Pass ALIGN arg
                   2452:        to extract_fixed_bit_field.
                   2453: 
                   2454:        * expr.c (expand_assignment): Convert TYPE_ALIGN to bytes.
                   2455:        (store_constructor, expand_expr): Likewise.
                   2456: 
                   2457:        * m68k.h: NO_ADDSUB_Q conditionals turn off all addq, subq insns.
                   2458:        (Fully supported only with MOTOROLA and HPUX_ASM flags.)
                   2459: 
                   2460:        * jump.c (do_cross_jump): Don't die if LABEL is 0.
                   2461: 
                   2462:        * tm-mips.h (PRINT_OPERAND_PUNCT_VALID_P): New macro.
                   2463:        * tm-iris.h: New file.  Unsplit lines accidentally split.
                   2464: 
                   2465: Mon Jun  5 15:39:30 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2466: 
                   2467:        * integrate.c (output_inline_function): Call init_function_start,
                   2468:        not expand_function_start.
                   2469:        * emit-rtl.c (restore_reg_data): No need to init reg_rtx_no.
                   2470: 
                   2471:        * stmt.c (init_function_start): Set current_function_returns_struct.
                   2472: 
                   2473:        * rtlanal.c (reg_set_between_p): New fn analogous to reg_used_between_p
                   2474:        * loop.c (strength_reduce): Reject biv initial value which is altered
                   2475:        subsequently before actual loop start.
                   2476: 
                   2477:        * rtlanal.c: New file split out from rtl.c.
                   2478:        Has things not used in the gen files.
                   2479: 
                   2480:        * loop.c (strength_reduce): Reject biv initial value in a hard reg
                   2481:        clobbered by an intervening function call.
                   2482: 
                   2483:        * tree.c (get_identifier): New flag needed to enable id-clash warnings.
                   2484:        (start_identifier_warnings): Set that flag.
                   2485:        * c-decl.c (init_decl_processing): Call that, after making built-ins.
                   2486: 
                   2487: Sat Jun  3 14:41:34 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2488: 
                   2489:        * final.c (final_scan_insn): No basic block profiling at jump tables.
                   2490: 
                   2491:        * stmt.c (expand_decl): Probe the stack to make pages exist.
                   2492:        * expr.c (expand_builtin): Likewise, for alloca.
                   2493: 
                   2494:        * move-if-change: Specify /bin/sh.
                   2495: 
                   2496:        * tm-ns32k.h (INDIRECTABLE_2_ADDRESS_P): Don't accept PLUS
                   2497:        with constant operands but not inside CONST.
                   2498: 
                   2499:        * integrate.c (output_inline_function, save_for_inline):
                   2500:        Save stack_slot_list, and restore it for actual output.
                   2501:        * emit-rtl.c (gen_inline_header_rtx): New arg for this.
                   2502: 
                   2503:        * emit-rtl.c (restore_reg_data): Initialize reg_rtx_no.
                   2504:        (restore_reg_data_1): Handle reg_rtx_no jumping past
                   2505:        reg_pointer_flag_length.
                   2506: 
                   2507:        * reload1.c (alter_reg): Do nothing if regno_reg_rtx has 0.
                   2508: 
                   2509:        * integrate.c (copy_rtx_and_substitute): Typos for stack parm
                   2510:        addresses in PLUS case.
                   2511: 
                   2512:        * genoutput.c (gen_insn, gen_peephole): Make output_n fns static.
                   2513:        (output_prologue): Use new macro DEFAULT_MACHINE_INFO if defined.
                   2514: 
                   2515:        * tree.h (enum machine_mode): Define MAX_MACHINE_MODE as in rtl.h.
                   2516: 
                   2517: Fri Jun  2 15:40:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2518: 
                   2519:        * cccp.c (do_include): A file included via a system header file
                   2520:        counts as a system header file for -M.
                   2521: 
                   2522:        * gnulib2.c: Support boolean ops and shifts.
                   2523: 
                   2524:        * loop.c (emit_iv_inc): Use emit_iv_init_code.
                   2525: 
                   2526:        * rtl.h (CONST0_RTX): Don't try to cast abort.
                   2527: 
                   2528:        * tm-news.h (PRINT_OPERAND_ADDRESS): Fix typo `reg_name'.
                   2529:        Delete two garbage lines.
                   2530: 
                   2531:        * loop.c (eliminate_biv): Use emit_iv_init_code to compute comparison
                   2532:        value.  If value is constant, recognize the insn, and if that fails,
                   2533:        put the value in a register.  
                   2534: 
                   2535: Thu Jun  1 16:56:39 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2536: 
                   2537:        * print-tree.c (dump): Don't die if rtx components are null.
                   2538: 
                   2539:        * expmed.c (expand_mult_add): New fn to do A * X + B.
                   2540:        (make_tree): New subroutine.
                   2541:        * loop.c (emit_iv_init_code): Use that.  Much simpler now.
                   2542: 
                   2543: Tue May 30 17:20:40 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2544: 
                   2545:        * fold-const.c (fold): Use TREE_SET_CODE to store in tree codes.
                   2546: 
                   2547:        * tree.h (struct tree_common): Make `code' an unsigned int.
                   2548:        (TREE_CODE, TREE_SET_CODE): Put in casts.
                   2549: 
                   2550:        * optabs.c (emit_cmp_insn): Supply all the args in recursive calls.
                   2551: 
                   2552:        * toplev.c (report_error_function): Fix typo; METHOD_TYPE missing.
                   2553: 
                   2554:        * fixincludes: Add code to make internal non-directory links.
                   2555: 
                   2556: Mon May 29 21:36:28 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2557: 
                   2558:        * gcc.c (find_exec_file): Try both with and without machine_suffix.
                   2559:        (find_file): Use machine_suffix here too.
                   2560: 
                   2561: Sat May 27 00:02:26 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2562: 
                   2563:        * reload.c (decompose): OFFSET wasn't initialized.
                   2564: 
                   2565:        * cse.c (cse_main): Assign monotonic cuids.
                   2566:        (make_regs_eqv, CHEAPER): Use cuids, not uids.
                   2567:        (cse_end_of_basic_block): Return a cuid, not a uid.
                   2568: 
                   2569:        * expr.c (expand_builtin): For BUILTIN_SAVEREGS, range of regs
                   2570:        moved included one extra previous insn.
                   2571: 
                   2572:        * emit-rtl.c (emit_line_note): Don't check -g here.
                   2573:        (emit_note): For line number when no -g, increment cur_insn_uid anyway.
                   2574:        * stmt.c (expand_start_case): Always output a NOTE_INSN_DELETED.
                   2575: 
                   2576:        * loop.c (loop_optimize): Don't count line-number NOTEs for luids.
                   2577:        Prevents -g from affecting optimization decisions.
                   2578: 
                   2579: Fri May 26 17:31:15 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2580: 
                   2581:        * local-alloc.c (block_alloc): Don't count notes in insn_number.
                   2582:        Prevents -g from affecting order of allocation.
                   2583: 
                   2584: Thu May 25 14:12:19 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2585: 
                   2586:        * local-alloc.c (block_alloc): Clear full length of regs_live_at.
                   2587: 
                   2588:        * ns32k.md (cmpsi): Make this the first cmp pattern.
                   2589: 
                   2590:        * jump.c (do_cross_jump): Skip NOTEs while checking for existing label.
                   2591: 
                   2592:        * cse.c (cse_insn): When no-oping a jump, decrement use count of label.
                   2593:        (cse_basic_block): If label use count is 0, go past it.
                   2594: 
                   2595:        * integrate.c (access_parm_map): New fn, broken out of
                   2596:        copy_rtx_and_substitute, handles case of mem ref to stack arg.
                   2597:        (copy_rtx_and_substitute): Call it.
                   2598:        Also use it for address of a stack arg.
                   2599: 
                   2600:        * gen*.c (fatal): Declare 1st arg as string.
                   2601: 
                   2602: Wed May 24 00:13:36 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2603: 
                   2604:        * optabs.c (init_optabs): Handle movdi and movdf insns.
                   2605: 
                   2606:        * final.c (end_final): Realign locn ctr after outputting string.
                   2607: 
                   2608:        * tm-sparc.h (LINK_SPEC): Link bb_link.o before standard lib.
                   2609: 
                   2610:        * tm-sun386i.h (LINK_SPEC): Accept and ignore -sun386.
                   2611: 
                   2612:        * gcc.c (find_exec_file): Use machine_suffix.
                   2613:        (process_command): Set that for -b option.
                   2614: 
                   2615:        * integrate.c (function_cannot_inline_p): No size limit
                   2616:        for functions declared inline.
                   2617: 
                   2618:        * loop.c (skip_consec_insns): New fn, skip several insns or libcalls.
                   2619:        (force_movables): New fn, part of scan_loop broken out.
                   2620:        (ignore_some_movables): New fn, ignore a movable whose insn
                   2621:        is within another movable's libcall.
                   2622:        (scan_loop): Call those three.
                   2623:        Don't handle m->consec for zero-extend movables, since always 0.
                   2624: 
                   2625: Tue May 23 12:58:24 1989  Joe Weening  (weening at gang-of-four.stanford.edu)
                   2626: 
                   2627:        * config/alliant.md:
                   2628:        Removed operand classes 'x', 'y', 'G', 'H'.
                   2629:        Added "%." to many opcodes to simplify comparison with m68k.md.
                   2630:        Changed TARGET_68881 to TARGET_CE.
                   2631:        Changed floating-point insns to better describe the Alliant CE.
                   2632:        Most args to floating-point insns are now nonimmediate_operand.
                   2633:        Removed special insns for pushing doublewords onto stack.
                   2634:        Added non-CE versions of movsf and movdf to avoid using FP
                   2635:        registers in this case.
                   2636:        (float*i*f2): Don't allow immediate ops.
                   2637:        (sne): Fix typo, fsne => fsneq.
                   2638:        (call, call_value): Changed to always pop args from stack
                   2639:        upon return; this gives better code than before and conforms
                   2640:        to Alliant calling standard.
                   2641:        Incorporated some recent changes to m68k.md.
                   2642: 
                   2643:        * config/out-alliant.c:
                   2644:        (regno_reg_class): Removed FPA reg classes.
                   2645:        (output_move_const_double): Function not needed, removed.
                   2646: 
                   2647:        * config/tm-alliant.h:
                   2648:        Removed FPA registers and reg classes.
                   2649:        Target flags: changed TARGET_68881 to TARGET_CE, removed
                   2650:        TARGET_RTD, TARGET_REGPARM, TARGET_FPA.
                   2651:        Removed TARGET_CE test in several places since we need to
                   2652:        use FP regs even for non-CE programs.
                   2653:        (TARGET_VERSION, CPP_SPEC): Define for Alliant.
                   2654:        (CONDITIONAL_REGISTER_USAGE): Removed, not needed.
                   2655:        (FRAME_POINTER_REQUIRED): Defined.
                   2656:        (RETURN_POPS_ARGS): Defined.
                   2657:        (FUNCTION_VALUE, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P):
                   2658:        Use fp0 to return floating-point values.
                   2659:        (FUNCTION_ARG): Remove TARGET_REGPARM code.
                   2660:        (FUNCTION_ARG_PARTIAL_NREGS): Always 0.
                   2661:        (FUNCTION_PROFILER): Define for Alliant.
                   2662:        (FUNCTION_EPILOGUE): Remove use of rtd instruction.
                   2663:        Renamed CC_IN_68881 to CC_IN_FP.
                   2664:        (NOTICE_UPDATE_CC): Incorporate changes that were made
                   2665:        in tm-m68k.h.
                   2666: 
                   2667:        * config/xm-alliant.h (LINK_SPEC): Pass -X to linker.
                   2668: 
                   2669: Tue May 23 12:58:24 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2670: 
                   2671:        * sdbout.c: Don't include c-tree.h.
                   2672: 
                   2673:        * tree.c (build_index_type): Use sizetype for min and max values.
                   2674:        Convert maxval rather than clobbering it.
                   2675: 
                   2676:        * tm-hp9k320.h: Finish unterminated comment.
                   2677: 
                   2678:        * sdbout.c (sdbout_parms): Use gen_fake_label for anonymous parm.
                   2679: 
                   2680: Sun May 21 12:58:06 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2681: 
                   2682:        * stmt.c (aggregate_value_p): New fn says whether expression is a type
                   2683:        that functions cannot return as a scalar.
                   2684:        (assign_parms, expand_function_start): Use that.
                   2685:        * expr.c (expand_call): Likewise.
                   2686: 
                   2687:        * gcc.c (delete_failure_queue): New subroutine.
                   2688:        (delete_temp_files): No longer delete the failure queue.
                   2689:        (main): Delete failure queue after each failing compilation.
                   2690: 
                   2691: Sat May 20 13:16:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2692: 
                   2693:        * varasm.c (force_const_mem): New optional macro SELECT_RTX_SECTION.
                   2694: 
                   2695:        * mips.md: Change %u0 to %:.
                   2696:        (movsi): Add constraint alternative accepting address arg.
                   2697: 
                   2698:        * fold-const.c (mul_double): Special case for 2nd arg 2, 4, 8.
                   2699:        (combine): Special case shortcuts for plus, minus, mult, div.
                   2700: 
                   2701:        * stmt.c (expand_function_start): Simplify hairy statement for 3B1.
                   2702:        * expr.c (expand_call): Likewise.
                   2703: 
                   2704:        * math-68881.h: New file.
                   2705: 
                   2706:        * m68k.md (movqi): Handle moving aregs to mem and vice versa.
                   2707: 
                   2708:        * dbxout.c (dbxout_type): Don't test use_gdb_dbx_extensions
                   2709:        in cases that occur in C.
                   2710: 
                   2711:        * stmt.c (expand_function_{start,end}): Make DECL_RESULT's rtl 0
                   2712:        when function returns no value.
                   2713: 
                   2714:        * tree.c (build_decl): Initialize DECL_PRINT_NAME, DECL_ASSEMBLER_NAME.
                   2715: 
                   2716:        * c-decl.c (store_parm_decls): Call init_function_start.
                   2717: 
                   2718: Thu May 18 00:41:37 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2719: 
                   2720:        * stmt.c (expand_null_return_1): New arg USE_GOTO says jump to
                   2721:        return_label even if could otherwise use a return insn.
                   2722:        Make a return_label if we need one and don't have one already.
                   2723:        If have parm cleanups, always jump to cleanup_label.
                   2724:        (expand_null_return): Pass 1 for USE_GOTO if cleanups pending.
                   2725:        (expand_return): Set LAST_INSN if have local cleanups or parm cleanups.
                   2726:        Use that if jumping to tail-recursion label.
                   2727:        Optimization for returning a comparison is safe for local cleanups
                   2728:        but don't do it if there are parm cleanups.
                   2729:        Calling expand_null_return_1, pass 1 for USE_GOTO if local cleanups.
                   2730:        (this_contour_has_cleanups_p): New function.
                   2731: 
                   2732:        * stmt.c (init_function_start): New function, beginning of
                   2733:        expand_function_start broken out.
                   2734:        Use DECL_PRINT_NAME to get function's name.
                   2735:        (expand_function_start): Now two args, function and PARMS_HAVE_CLEANUPS
                   2736:        Compute RETURN_LABEL sooner; make one if parm cleanups.
                   2737:        If parms have cleanups, put scalar return value in pseudo-reg.
                   2738:        Don't mark that pseudo with REG_FUNCTION_VALUE_P.
                   2739:        (expand_function_end): Simplify decisions about output of return_label
                   2740:        and return insn.
                   2741:        If DECL_RESULT is pseudo-reg, copy it to real return reg.
                   2742: 
                   2743:        * stmt.c (expand_function_end): Handle ordinary struct values
                   2744:        like pcc, but only if unoptimized.
                   2745:        (expand_function_start): Make a return_label for ordinary struct value.
                   2746: 
                   2747:        * stor-layout.c (layout_type): Handle METHOD_TYPE like FUNCTION_TYPE.
                   2748:        (layout_decl): Allow TYPE_DECL.
                   2749: 
                   2750:        * stor-layout.c (layout_basetypes): Code for basetypes broken
                   2751:        out of layout_record.  Sets the type size tentatively.
                   2752:        (layout_record): Start with that tentative size.
                   2753:        Also, don't do anything with CONST_DECL members.
                   2754: 
                   2755:        * stor-layout.c (layout_union): Simpler error report for static memb.
                   2756: 
                   2757:        * reload1.c (eliminate_frame_pointer): Reduce PUSH_ROUNDING
                   2758:        conditional to apply only to push instructions.
                   2759: 
                   2760:        * expr.c (expand_call): Fix stupid errors handling MAX_PARM_BOUNDARY.
                   2761:        * stmt.c (assign_parms): Likewise.
                   2762: 
                   2763:        * toplev.c (announce_function, report_error_function):
                   2764:        (error_with_decl, warning_with_decl): Use DECL_PRINT_NAME.
                   2765: 
                   2766:        * toplev.c (compile_file): Subtract integration_time from parse_time.
                   2767: 
                   2768:        * toplev.c (compile_file): Don't output read-only static variables
                   2769:        at end of compilation if address was not used.
                   2770: 
                   2771:        * toplev.c (rest_of_compilation): Handle flag_syntax_only.
                   2772: 
                   2773:        * toplev.c (main): Handle -g0 and -G0 options.
                   2774:        For -g and -G, set use_gdb_dbx_extensions.
                   2775: 
                   2776:        * toplev.c (main): Set `progname'.
                   2777:        (pfatal_with_name, fatal_io_error, {error,warning}_with_file_and_line):
                   2778:        (sorry): Print value of `progname', not "cc1".
                   2779: 
                   2780:        * tree.def: Delete FRIEND_DECL.  Add PUSH_EXPR and POP_EXPR.
                   2781: 
                   2782:        * tree.c (simple_cst_equal): Handle INDIRECT_REF.
                   2783: 
                   2784:        * tree.c (lvalue_p): Handle METHOD_TYPE.  Handle NEW_EXPR.
                   2785: 
                   2786:        * tree.c (copy_list): New function.
                   2787: 
                   2788:        * tree.h (struct tree_decl): New fields print_name and assembler_name.
                   2789:        (DECL_PRINT_NAME, DECL_ASSEMBLER_NAME): New accessors.
                   2790: 
                   2791:        * c-decl.c (LONG_DOUBLE_TYPE_SIZE): New compilation parameter.
                   2792: 
                   2793: Wed May 17 22:07:17 1989  Randall Smith  (randy at apple-gunkies.ai.mit.edu)
                   2794: 
                   2795:        * dbranch.c (emit_delay_sequence): Reset insn code to -1 when
                   2796:        turning insn into a sequence so that it won't think that it matches
                   2797:        something in the md file.
                   2798: 
                   2799:        * dbranch.c (insn_eligible_p): Call refers_to_regno_p with a
                   2800:        non-zero range.
                   2801: 
                   2802:        * dbranch.c (pnote): Modified to make sure instruction clobbered
                   2803:        register is a set, rather than, say, a clobber.
                   2804: 
                   2805: Wed May 17 14:01:20 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2806: 
                   2807:        * sdbout.c (sdbout_parms): Handle parm with no name.
                   2808: 
                   2809:        * loop.c (combine_movables): Test for overlap of zero-extend regs
                   2810:        was screwed up.
                   2811: 
                   2812:        * c-typeck.c (c_sizeof{,_nowarn}): Convert from bytes to chars,
                   2813:        since c defines sizeof (char) as 1.
                   2814:        (pointer_int_sum, pointer_diff): Use c_sizeof{,_nowarn}. 
                   2815: 
                   2816: Tue May 16 16:27:32 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2817: 
                   2818:        * reload1.c (choose_reload_targets): Don't reuse regs
                   2819:        mentioned in reload_reg_rtx.
                   2820: 
                   2821:        * tm-tahoe.h, tahoe.md, out-tahoe.c, xm-tahoe.h: New files.
                   2822: 
                   2823: Mon May 15 16:25:12 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2824: 
                   2825:        * fixincludes: Exit with explicit status 0 at end.
                   2826:        cd to /usr/include before cd to subtree root in case of relative link.
                   2827:        Create dir $LIB earlier.
                   2828:        When checking for a link, treat .. like an absolute target.
                   2829: 
                   2830:        * symout.c (symout_block_symbols): Give every local decl a typespec.
                   2831:        * cexp.y (parse_number):
                   2832:        * flow.c (life_analysis, dump_flow_info):
                   2833: 
                   2834:        * loop.c (consec_sets_invariant_p): Logic error accepted consec sets
                   2835:        of which only one was invariant.
                   2836: 
                   2837:        * expr.c (expand_expr): Use no subtargets inside loops.
                   2838:        * stmt.c (inside_loop): New function.
                   2839: 
                   2840: Sun May 14 00:11:07 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2841: 
                   2842:        * tree.h: Declare long long types.
                   2843: 
                   2844:        * c-parse.y (combine_strings): Make string contents saveable.
                   2845: 
                   2846:        * tree.c (savealloc): New function.
                   2847: 
                   2848:        * m68k.md (movdi): % missing in fmove%.d.
                   2849: 
                   2850:        * c-parse.y (yylex): Detect overflow past 64-bits.
                   2851:        Detect specially numbers not fitting in signed long long.
                   2852: 
                   2853: Sat May 13 13:16:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2854: 
                   2855:        * reload1.c (alter_frame_pointer_addresses): Preserve volatility.
                   2856: 
                   2857:        * varasm.c (output_constructor): Die if BITS_PER_UNIT is too big
                   2858:        for this function to work.
                   2859: 
                   2860:        * genpeep.c (match_rtx): For match_operator, match the operands, too.
                   2861: 
                   2862:        * varasm.c (output_constant): Use ASM_OUTPUT_DOUBLE_INT for DImode.
                   2863: 
                   2864:        * stor-layout.c (make_signed_type, make_unsigned_type):
                   2865:        (fixup_unsigned_type): Use HOST_BITS_PER_INT.
                   2866: 
                   2867:        * stor-layout.c (layout_type): Use TFmode if appro.
                   2868: 
                   2869:        * optabs.c (emit_cmp_insn): Use mode sizes to check cmpstrqi, cmpstrhi.
                   2870: 
                   2871:        * c-typeck.c (get_floating_type): Compare MODE against modes of types.
                   2872:        (signed_type, unsigned_type, signed_or_unsigned_type, type_for_size):
                   2873:        Handle long long types.
                   2874:        (digest_init): Don't assume width of `char' is BITS_PER_UNIT.
                   2875: 
                   2876:        * c-parse.y (yylex): For truncating chars, use width of `char' type.
                   2877:        Allow `ll' in int constants and make long long.
                   2878:        Also make long long if constant won't fit in an int.
                   2879: 
                   2880:        * c-decl.c (SHORT_TYPE_SIZE): Round up when dividing.
                   2881: 
                   2882: Fri May 12 22:36:21 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2883: 
                   2884:        * real.h: Allow multiple inclusion.
                   2885: 
                   2886:        * tm-sun386i.h (DBX_REGISTER_NUMBER): Bizarre renumbering.
                   2887: 
                   2888: Thu May 11 00:36:21 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2889: 
                   2890:        * fixincludes: Fix non-ansi declaration of sprintf in X11/Xmu.h
                   2891: 
                   2892:        * c-parse.y (stmt from expr): Do default conversion if useful
                   2893:        for sake of ({...}).
                   2894: 
                   2895:        * sparc.md (andcc recognizer): Operand missing in subreg.
                   2896: 
                   2897: Wed May 10 17:20:38 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2898: 
                   2899:        * rtl.c (read_name): Error if name is missing.
                   2900:        (dump_and_abort): Don't print char args if -1.
                   2901: 
                   2902:        * i386.md (umulqihi3): Operand numbers were missing.
                   2903: 
                   2904:        * reload1.c (choose_reload_targets): Allow spill reg in find_equiv_reg
                   2905:        if it's free and correct class. 
                   2906: 
                   2907:        * cse.c (canon_hash): Handle empty strings.
                   2908: 
                   2909:        * cccp.c (macroexpand): Newline newline treated like real white space
                   2910:        when stringifying.
                   2911: 
                   2912:        * Rename *offsetable* to *offsettable*.
                   2913: 
                   2914: Tue May  9 22:54:58 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2915: 
                   2916:        * c-decl.c (finish_type): Layout any variants of the type.
                   2917: 
                   2918: Tue May  9 12:30:28 1989  Randall Smith  (randy at apple-gunkies.ai.mit.edu)
                   2919: 
                   2920:        * final.c (final_scan_insn, final): Added an argument to
                   2921:        final_scan_insn to disallow peephole processing (to turn it off
                   2922:        during delayed branch scheduling).
                   2923: 
                   2924:        * final.c (final_scan_insn): Made insn not matching any MD rtl a
                   2925:        criteria for delayed branch case.  Moved delayed branch case to just
                   2926:        before real insn recognition to reduce the number of insns on which
                   2927:        recog_memoized is called.
                   2928: 
                   2929: Mon May  8 15:02:42 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2930: 
                   2931:        * fixincludes (LIB): Allow overriding.
                   2932: 
                   2933:        * cccp.c: Don't search /usr/include/CC by default.
                   2934: 
                   2935: Mon May  8 13:09:21 1989  Randall Smith  (randy at apple-gunkies.ai.mit.edu)
                   2936: 
                   2937:        * print-tree.c (dump): Fixed typo; IDENTIFIER ==> IDENTIFIER_NODE.
                   2938: 
                   2939: Sun May  7 12:44:53 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2940: 
                   2941:        * print-tree.c (dump): TYPE_NAME may be IDENTIFIER or TYPE_DECL.
                   2942: 
                   2943: Sat May  6 00:13:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2944: 
                   2945:        * tree.def: Define EXACT_DIV_EXPR, for when remainder known as 0.
                   2946:        * fold-const.c (combine, fold, div_and_round_double): Handle new code.
                   2947:        * expr.c (expand_expr): Likewise.
                   2948:        * c-typeck.c (pointer_diff): Use EXACT_DIV_EXPR.
                   2949: 
                   2950:        * integrate.c (expand_inline_function): Use size of passed type
                   2951:        for allocating stack slot with that type.
                   2952: 
                   2953:        * c-parse.y (maybe_attribute, attribute*): New syntax for Apollos.
                   2954:        These tokens currently not generated.
                   2955: 
                   2956: Fri May  5 18:43:01 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2957: 
                   2958:        * toplev.c [USG]: Undefine FLOAT for sake of sys/param.h on hpux.
                   2959: 
                   2960:        * optabs.c (expand_binop): If backtracking, don't delete insns made
                   2961:        for -fforce-mem.
                   2962: 
                   2963: Thu May  4 01:57:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2964: 
                   2965:        * reload.c (find_reloads): Don't compare an earlyclobber operand
                   2966:        with itself.
                   2967: 
                   2968:        * reload.c (immune_p): Constants and stack slots don't overlap.
                   2969: 
                   2970:        * Put no-ops in front of loops and labels,
                   2971:        to prevent confusion in the debugger.
                   2972:        * c-parse.y (loops and labels): Call emit_nop.
                   2973:        * stmt.c (emit_nop): New function--sometimes emit a no-op.
                   2974:        * *.md (nop): New insn.
                   2975: 
                   2976:        * expr.c (expand_call): Typo in arg to FIRST_PARM_CALLER_OFFSET.
                   2977: 
                   2978: Wed May  3 01:34:58 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   2979: 
                   2980:        * loop.c (scan_loop): Scanning around end of loop
                   2981:        should not set maybe_never.
                   2982: 
                   2983:        * Rename SELECT_VARIABLE_SECTION to SELECT_SECTION.
                   2984:        * varasm.c (get_or_assign_label): Use SELECT_SECTION if defined.
                   2985:        * varasm.c: Use EXTRA_SECTION_FUNCTIONS if defined (new macro).
                   2986: 
                   2987:        * mips.md: Change %u to %u0 to avoid error check.
                   2988: 
                   2989:        * tm-mips.h (TARGET_VERSNUM): Inc. to 1 08.
                   2990:        (TARGET_VERSION): Change strings.
                   2991:        (AL_DEBUG): Don't define it.
                   2992:        (HARD_REGNO_MODE_OK): Add some casts to int.
                   2993:        (STACK_ARGS_ADJUST): Name was misspelled.
                   2994:        (PRINT_OPERAND_ADDRESS): Just abort for MEM, POST_INC, etc.
                   2995:        (EXTRA_SECTIONS, SELECT_VARIABLE_SECTION, SELECTORS_EXTRA_SECTIONS,
                   2996:        SELECT_VARIABLE_CONST_SECTION): New macros.
                   2997:        (ASM_FILE_END): Change function name.
                   2998:        * out-mips.c (function_arg_advance): Delete debugging printfs.
                   2999:        (function_inarg, function_arg): Likewise.
                   3000:        (compare_collect, compare_restore): Add some.
                   3001: 
                   3002:        * reload1.c (reload): Fix handling of caller_save_needed.
                   3003: 
                   3004:        * stmt.c (expand_function_start): Clear caller_save_needed.
                   3005: 
                   3006:        * stmt.c (emit_case_nodes): Some compiler has trouble with calling
                   3007:        a function pointer.
                   3008:        * gnulib.c: likewise.
                   3009: 
                   3010: Tue May  2 15:32:25 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3011: 
                   3012:        * loop.c (combine_movables): For zero extend,
                   3013:        do each from-mode separately.
                   3014: 
                   3015: Mon May  1 00:18:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3016: 
                   3017:        * tm-apollo68.h: New file.
                   3018: 
                   3019:        * c-parse.y (is_reserved_word, hash): Add keywords `__asm__', etc.
                   3020:        * c-parse.gperf: Corresponding changes.
                   3021: 
                   3022:        * c-parse.y (check_newline): Set main_input_filename before
                   3023:        considering optional arguments.
                   3024: 
                   3025:        * final.c (final_scan_function): Return next insn to process.
                   3026:        Usually that's the following insn; occasionally, previous compare.
                   3027: 
                   3028:        * c-decl.c (DOUBLE_TYPE_SIZE): Wrong value.
                   3029: 
                   3030:        * reload.c (decompose): Failed to return value.
                   3031: 
                   3032:        * Support local specified-register variables.
                   3033:        * varasm.c (decode_reg_name): New function, cvt asmspec to regnum.
                   3034:        (make_decl_rtl): Call that.
                   3035:        * toplev.c (rest_of_decl_compilation): Handle local specified-register
                   3036:        declarations.
                   3037: 
                   3038:        * i386.md (tstqi, trunc*qi): Constrain to `q' regs.
                   3039: 
                   3040:        * loop.c (scan_loop, move_movables): ->global for zero-extend register
                   3041:        now means register is used outside range from where it is set
                   3042:        to the following label.  Non-global zero-extend regs
                   3043:        may be entirely cleared.
                   3044: 
                   3045:        * loop.c (combine_movables): Loop that combines matching movables
                   3046:        broken out from scan_loop.
                   3047:        Now also combine non-global zero-extend registers with each other
                   3048:        if their lifespans don't overlap.
                   3049: 
                   3050:        * c-typeck.c (build_unary_op, ADDR_EXPR of a COMPONENT_REF):
                   3051:        Always convert to desired result type.
                   3052: 
                   3053: Sun Apr 30 12:58:58 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3054: 
                   3055:        * c-decl.c (init_decl_processing): New macros parameterize int types.
                   3056:        CHAR_TYPE_SIZE, SHORT_TYPE_SIZE, LONG_TYPE_SIZE, LONG_LONG_TYPE_SIZE,
                   3057:        FLOAT_TYPE_SIZE, DOUBLE_TYPE_SIZE.
                   3058: 
                   3059:        * fixincludes: Use sed instead of ex.  No problem with split lines.
                   3060: 
                   3061:        * print-tree.c (dump): Print type's name, if any.
                   3062: 
                   3063:        * c-parse.y: Use __inline, not plain inline.
                   3064: 
                   3065:        * toplev.c: New option -fdelayed-branch.
                   3066:        (compile_file): Open and close dbranch dump file.
                   3067:        Collect and print dbranch time.
                   3068:        (rest_of_compilation): Optionally do dbranch scheduling, 
                   3069:        only if HAVE_DELAYED_BRANCH.
                   3070:        (main): Handle -dd.
                   3071: 
                   3072:        * rtl.c (copy_rtx): Handle null pointers as code `e'.
                   3073: 
                   3074:        * final.c (dbr_sequence_length): New function.
                   3075:        (final_scan_insn): Most of `final' broken out.
                   3076:        Add support for SEQUENCE insns.
                   3077:        last_ignored_compare and new_block now top-level static.
                   3078: 
                   3079:        * c-parse.y (MAX_WORD_LENGTH): Long enough for __volatile.
                   3080: 
                   3081: Sat Apr 29 13:03:20 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3082: 
                   3083:        * c-parse.y (asm statements): Output line numbers.
                   3084: 
                   3085:        * loop.c (emit_iv_init_code, emit_iv_inc, eliminate_biv): Copy
                   3086:        additive term rtx's to prevent sharing between insns.
                   3087: 
                   3088:        * c-parse.y (check_newline): Increment input_file_stack_tick.
                   3089:        * toplev.c (report_error_function): Describe input stack only if
                   3090:        changed.
                   3091: 
                   3092:        * c-decl.c (finish_struct): Reject zero width for named field.
                   3093: 
                   3094:        * tm-sun3.h (CC1_SPEC): Prevent error on `-sun3'.
                   3095:        * tm-sparc.h (CC1_SPEC): Prevent error on `-sun4'.
                   3096: 
                   3097:        * Makefile (cleanconfig): cleanlinks renamed; also delete gnulib.
                   3098:        (gnulib): Delete stamp-gnulib2 since gnulib2 should be redone after.
                   3099: 
                   3100: Fri Apr 28 00:38:32 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3101: 
                   3102:        * config.gcc (genix): Correct xm file name.
                   3103: 
                   3104:        * tm-genix.h: Undefine ASM_SPEC inherited from tm-encore.h.
                   3105: 
                   3106:        * Makefile: Make float.h using hard-params.
                   3107:        (clean): Delete float.h.
                   3108: 
                   3109:        * hard-params.c: New program.
                   3110: 
                   3111:        * varasm.c (assemble_variable): Use SELECT_VARIABLE_SECTION if defined.
                   3112:        (in_section): Use EXTRA_SECTIONS if defined.
                   3113: 
                   3114:        * toplev.c (compile_file): Call ASM_FILE_END if defined.
                   3115: 
                   3116:        * gcc.c (SWITCH_TAKES_ARG, WORD_SWITCH_TAKES_ARG): Let config override.
                   3117: 
                   3118:        * loop.c (emit_iv_init_code): Force A to a reg if it isn't.
                   3119: 
                   3120: Thu Apr 27 12:51:14 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3121: 
                   3122:        * tm-mips.h (ASM_START_FILES): Don't call print_options.
                   3123:        Don't call the funny abort-functions.
                   3124:        * out-mips.c: Delete funny debugging functions and aborts.
                   3125:        (print_options): #if 0.
                   3126:        (compare_restore): Test for COMPARE, not MINUS.
                   3127:        (mips_section_get, mips_output_external, mips_asm_final): New fns.
                   3128: 
                   3129:        * input.h: New file with *input_filename, lineno and input_file_stack.
                   3130:        Included in toplev.c and c-parse.y.
                   3131:        * c-decl.c (finish_function): LINENO is now arg.
                   3132:        * c-parse.y: Calls changed.
                   3133: 
                   3134:        * c-parse.y (check_newline): Handle `1' or `2' from cpp
                   3135:        by pushing or popping input_file_stack.
                   3136:        * toplev.c (compile_file): Push main input file on input_file_stack.
                   3137:        (report_error_function): If in include file, print the chain
                   3138:        of include-locations.
                   3139: 
                   3140:        * cccp.c (output_line_command): New arg says whether entering or
                   3141:        leaving a file.  Output `1' or `2' on #-line if so.  Callers changed.
                   3142: 
                   3143:        * gnulib2.c: Little-endian fixes from [email protected].
                   3144: 
                   3145:        * fixincludes: Wrong quoting in `echo' command.
                   3146: 
                   3147:        * tm-mips.h (REG_P): Duplicate defn deleted.
                   3148:        (PRINT_OPERAND): `\' was missing.
                   3149: 
1.1.1.15  root     3150: Wed Apr 26 02:44:59 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3151: 
1.1.1.16  root     3152:        * cccp.c (handle_directive): Preprocess even #pragma, but copy 
                   3153:        to output file afterward.
                   3154:        (do_pragma): Use standard calling convention.
                   3155:        (install_builtins, special_symbol): Define __INCLUDE_LEVEL__.
                   3156: 
                   3157:        * cccp.c (do_include): Don't forget to close file.
                   3158: 
                   3159:        * final.c (output_asm_insn): Use PRINT_OPERAND_PUNCT_VALID_P
                   3160:        to validate punctuation after percent.
                   3161:        * tm-m68k.h, tm-alliant.h, tm-ns32k.h, tm-vax.h, tm-i386.h:
                   3162:        Define PRINT_OPERAND_PUNCT_VALID_P.
                   3163: 
1.1.1.15  root     3164:        * Version 1.35 released.
                   3165: 
                   3166:        * c-decl.c (grokdeclarator): Use INT_CST_LT only on int constants.
                   3167: 
                   3168: Tue Apr 25 15:47:11 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3169: 
                   3170:        * reload.c (find_reloads_address_1): Always return a value.
                   3171: 
                   3172:        * flow.c (mark_set_1): Look inside zero_extract, sign_extract.
                   3173: 
                   3174:        * expr.c (emit_library_call) [STACK_ARGS_ADJUST]:
                   3175:        Fix typo for `struct args_size'.
                   3176: 
                   3177: Mon Apr 24 00:12:18 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3178: 
                   3179:        * flow.c (mark_set_1): Look inside strict_low_part.
                   3180: 
                   3181:        * c-typeck.c (decl_constant_value): Don't use var's init if volatile.
                   3182: 
                   3183:        * print-tree.c (dump): Don't call walk on rtx's.
                   3184: 
                   3185:        * integrate.c (expand_inline_function): Convert expanded arg from
                   3186:        passed mode to nominal mode.
                   3187: 
                   3188: Sun Apr 23 13:14:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3189: 
                   3190:        * fixincludes: fix _IO macros if split across two lines.
                   3191:        Fix typo: EOF was indented.
                   3192: 
                   3193:        * gnulib2.c: New file with DImode library routines.
                   3194:        * Makefile (gnulib2): Put them into gnulib.
                   3195:        Must be explicitly requested.
                   3196: 
                   3197: Fri Apr 21 13:45:45 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3198: 
                   3199:        * cccp.c (main): Don't turn on trigraphs for -Wtrigraphs or -Wall;
                   3200:        use -trigraphs for that.
                   3201: 
                   3202:        * cccp.c (main): Use -trigraphs to enable trigraphs.
                   3203:        * gcc.c: Pass -trigraphs to cpp; don't pass -T.
                   3204: 
                   3205:        * Makefile: Variable srcdir relates location of sources
                   3206:        to current directory.  Default is `.'.
                   3207: 
                   3208:        * integrate.c (expand_inline_function): When copying expanded arg,
                   3209:        use mode it's passed in, not arg's nominal mode.
                   3210: 
                   3211:        * dbxout.c (dbxout_block): Print generated name with assemble_name.
                   3212: 
                   3213: Thu Apr 20 12:36:09 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3214: 
                   3215:        * stdarg.h: check __sparc__ instead of sparc.
                   3216: 
                   3217: Tue Apr 18 18:58:03 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3218: 
                   3219:        * tm-next.h (STARTFILE_SPEC): Define it.
                   3220: 
                   3221: Mon Apr 17 19:56:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3222: 
                   3223:        * dbxout.c (dbxout_block): Use ASM_GENERATE_INTERNAL_LABEL to format
                   3224:        the labels LBB... and LBE...
                   3225: 
                   3226: Sun Apr 16 23:57:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3227: 
                   3228:        * mips.md: Change MINUS to COMPARE where appropriate.
                   3229: 
                   3230: Sat Apr 15 16:11:49 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3231: 
                   3232:        * c-decl.c (finish_struct, redeclaration_error_message):
                   3233:        Rename variables named OLD and NEW.
                   3234: 
                   3235:        * sparc.md (cse'd mult pattern): Handle memory operands.
                   3236:        Optimize small integer operands.
                   3237: 
                   3238:        * stmt.c (expand_decl): On sparc, ensure dynamic arrays of doubles
                   3239:        are properly aligned, despite unaligned STACK_POINTER_OFFSET.
                   3240: 
                   3241: Fri Apr 14 10:59:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3242: 
                   3243:        * expr.c (expand_call): Bugs treating struct value address as param:
                   3244:        do so only if it's supposed to be pushed;
                   3245:        decode value of FUNCTION_ARG properly.
                   3246: 
                   3247:        * tm-altos3068.h (CPP_SPEC): Some braces were dropped.
                   3248: 
                   3249:        * gcc.c (pexecute): Print message when exec fails.
                   3250:        (perror_exec): New fn.
                   3251:        (perror_with_name,pfatal_with_name): Change message syntax.
                   3252: 
                   3253:        * tm-hp9k320.h (ASM_IDENTIFY_GCC): Define as no-op.
                   3254: 
                   3255: Wed Apr 12 00:20:31 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3256: 
                   3257:        * cse.c (cse_insn): Can record constant value being stored in
                   3258:        a bit field, if we can tell that truncation won't change it.
                   3259: 
                   3260:        * m68k.md (bfset, bfclr, bfchg insns): Do CC_STATUS_INIT
                   3261:        since the cc's are set from the old contents.
                   3262: 
                   3263:        * gcc.c (compilers): Running `as', put -o option before input file.
                   3264: 
                   3265:        * gcc.c: Delete output file only if that file's compilation fails.
                   3266:        * gcc.c (record_temp_file): Changed args: always_delete, fail_delete.
                   3267:        (store_arg): Likewise.  Callers changed.
                   3268:        (clear_failure_queue): Called after each compilation.
                   3269: 
                   3270: Tue Apr 11 01:18:53 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3271: 
                   3272:        * combine.c (subst): (SET (ZERO_EXTRACT) (OR (ZERO_EXTRACT) const))
                   3273:        optimization was sometimes invalid.
                   3274: 
                   3275:        * tm-m68k.h (NOTICE_UPDATE_CC): A doubleword move that requires 2 insns
                   3276:        does not set the cc's usefully.
                   3277: 
                   3278:        * Makefile (cleanlinks): Just do `clean', not `realclean'.
                   3279:        (realclean): Delete config links also.
                   3280: 
                   3281:        * expr.c (expand_call): Handle case where return value is in memory
                   3282:        but TARGET is a register.
                   3283: 
                   3284:        * c-typeck.c (build_binary_op_nodefault): New arg ERROR_CODE
                   3285:        is passed to binary_op_error instead of CODE.
                   3286:        All callers changed.
                   3287:        (binary_op_error): CODE = NOP_EXPR is new special case.
                   3288:        (truthvalue_conversion): Call build_binary_op_nodefault directly
                   3289:        and specify NOP_EXPR for the error code.
                   3290: 
                   3291:        * c-decl.c (xref_tag): If pedantic, warn on fwd ref to enum.
                   3292: 
                   3293: Mon Apr 10 19:44:48 1989  Chris Smith  (csmith at mozart)
                   3294: 
                   3295:        * tm-convex.h (PCC_BITFIELD_TYPE_MATTERS): It doesn't,
                   3296:        but set it anyway.  It makes for better code on this
                   3297:        word machine.
                   3298: 
                   3299:        * convex.md (one_compl*): add not:QI and not:HI, which
                   3300:        do get used after all.
                   3301: 
                   3302:        * tm-convex.h (A_REG_P, S_REG_P): define new macros
                   3303:        convex.md: use them
                   3304: 
                   3305:        * convex.md (addsi3): tidy up constraints.
                   3306: 
                   3307:        * tm-convex.h (REG_OK_FOR_INDEX_P): stack pointer is not ok.
                   3308: 
                   3309:        * convex.md: add a pattern to push REG+CONST so we can
                   3310:        prefer an A reg.
                   3311: 
                   3312:        * tm-convex.h (tstqi): should sign extend, not zero extend.
                   3313: 
                   3314:        * expr.c (convert_move): Extending narrow to DI via SI,
                   3315:        operand of extendsidi2 was wrong.
                   3316: 
                   3317:        * emit-rtl.c (gen_lowpart): Handle CONST_DOUBLE.
                   3318: 
                   3319: Mon Apr 10 05:19:39 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3320: 
                   3321:        * recog.c (nonmemory_operand): Test constant operands
                   3322:        as general_operand does.
                   3323: 
                   3324:        * tm-m68k.h (PRINT_OPERAND): Limit effect of code `d'
                   3325:        to constant addresses.
                   3326: 
                   3327:        * loop.c (can_eliminate_biv_p, eliminate_biv): Don't rely on givs with
                   3328:        nonconstant coefficients, since the coeffs could be zero.
                   3329: 
                   3330:        * loop.c (can_eliminate_biv_p): Check each giv for ! ignore
                   3331:        before assuming it can be used.
                   3332:        (check_eliminate_biv): New fn, a piece of strength_reduce broken out.
                   3333: 
                   3334:        * cccp.c (error_from_errno): New fn, like error and perror_with_name.
                   3335:        (do_include): Call that if open fails.
                   3336:        (finclude): Print I/O error msg before closing desc.
                   3337: 
                   3338:        * c-decl.c (shadow_tag): If more than one tag or structure,
                   3339:        or anything other than a tag, warning.
                   3340: 
                   3341:        * c-parse.y (components): Just warn if memb decl has no member,
                   3342:        and only if pedantic.
                   3343: 
                   3344:        * loop.c (strength_reduce): Print uids, not luids, for dump.
                   3345:        (record_giv): giv_count field counts only DEST_REG givs.
                   3346:        (check_dbra_loop): src_two_before_end was set wrong.
                   3347: 
                   3348:        * loop.c (record_giv): New arg LOOP_END; all callers changed.
                   3349:        Don't mark giv replaceable if used past LOOP_END.
                   3350:        (find_mem_givs): New arg LOOP_END; all callers changed.
                   3351: 
                   3352:        * out-i386.c (FP_CALL): Make this a `return' stmt.
                   3353: 
                   3354: Fri Apr  7 11:56:58 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3355: 
                   3356:        * expr.c (expand_expr, case ..._DECL): Preserve mode thru
                   3357:        calling change_address.
                   3358: 
                   3359:        * expr.c (emit_library_call): Typo: ARGNUM => COUNT.
                   3360: 
                   3361:        * expr.c (preexpand_calls, expand_call): Take note of RETURN_IN_MEMORY.
                   3362:        * stmt.c (assign_parms): Likewise.
                   3363:        * integrate.c (function_cannot_inline_p): Likewise.
                   3364: 
                   3365:        * STACK_ARGS_ADJUST: Arg is now a `struct arg_data' and it should
                   3366:        be updated in place.
                   3367:        * tm-mips.h: Define it.
                   3368:        * expr.c (expand_call): Adapt to this.  Assume padding comes after args
                   3369:        so turn off the feature of changing the args' offsets.
                   3370:        (emit_library_call): Adapt to this.
                   3371: 
                   3372:        * tm-mips.h (PRINT_OPERAND): Use CONST_DOUBLE_{LOW,HIGH}.
                   3373:        Truncate SFmode constants to single precision.
                   3374: 
                   3375:        * c-typeck.c (mark_addressable): Fix test for local vs global reg var.
                   3376: 
                   3377:        * config.gcc: Change `:-' to `-' in var refs.
                   3378:        Shell on convex doesn't handle `:-'.
                   3379: 
                   3380: Thu Apr  6 00:09:01 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3381: 
                   3382:        * integrate.c (expand_inline_function): Compare actual's mode
                   3383:        against formal's DECL_ARG_TYPE's mode, not TREE_TYPE's mode.
                   3384: 
                   3385:        * c-decl.c (implicitly_declare): Make the decl permanent if
                   3386:        in global binding level.  (Can happen for certain invalid input.)
                   3387: 
                   3388:        * c-typeck.c (build_modify_expr): Block path that made a MODIFY_EXPR
                   3389:        containing an ERROR_MARK.
                   3390: 
                   3391:        * config/tm.h: New file.
                   3392: 
                   3393:        * loop.c (only_reg_use_p): Fix bugs in recursion, add some fast
                   3394:        special cases.  Comment on return value was backwards.
                   3395:        (strength_reduce): Negate the value of only_reg_use_p.
                   3396: 
                   3397:        * genoutput.c (output_prologue): Output `#include hard-reg-set.h'.
                   3398:        * Makefile: insn-output.o depends on that.
                   3399: 
                   3400:        * toplev.c (main): Typo recognizing -Wswitch.
                   3401: 
                   3402:        * config.gcc (mips): New alternative.
                   3403:        * tm-mips.h, out-mips.c, mips.md, va-mips.h: New files.
                   3404:        * varargs.h: Include va-mips.h if on mips.
                   3405: 
                   3406: Wed Apr  5 16:58:04 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3407: 
                   3408:        * c-decl.c (duplicate_decls): Rename OLD, NEW to OLDDECL, NEWDECL.
                   3409: 
                   3410:        * stmt.c (expand_function_start): Ref subr instead of
                   3411:        current_function_decl; should make no difference.
                   3412: 
                   3413:        * stmt.c (assign_parms): Do extra padding for some parms,
                   3414:        controlled by MAX_PARM_BOUNDARY.
                   3415:        * expr.c (expand_call): Same thing for caller side.
                   3416:        Note this is implemented only for machines that lack push insns.
                   3417:        Also, in both cases, it doesn't handle variable-size args.
                   3418: 
                   3419: Tue Apr  4 12:22:06 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3420: 
                   3421:        * gcc.c (find_file): Try STANDARD_EXEC_PREFIX for startfiles too.
                   3422: 
                   3423:        * varasm.c (make_decl_rtl): Delete never-executed clause.
                   3424: 
                   3425:        * spur.md (movqi, loadhi, extend*, zero_extendhisi):
                   3426:        Make subregs with C code, not RTL patterns, so we can
                   3427:        avoid generating subreg of subreg.
                   3428: 
                   3429:        * optabs.c (emit_cmp_insn): Not all clauses always succeed,
                   3430:        so stop using `else' structure.
                   3431: 
                   3432:        * stmt.c (expand_return): Avoid moving void to void, in cleanups case.
                   3433: 
                   3434: Mon Apr  3 18:04:33 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3435: 
                   3436:        * m68k.md (cmphi): Don't allow a-reg vs a-reg, since that sign-extends.
                   3437:        If there is one a-reg, make sure it is not last.
                   3438: 
                   3439: Sun Apr  2 13:02:26 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3440: 
                   3441:        * stor-layout.c (agg_mode): Use highest mode that has desired size.
                   3442:        Allow all integer modes, but reject sizes > MAX_FIXED_MODE_SIZE.
                   3443:        (That defaults to the size of DImode.)
                   3444: 
                   3445:        * machmode.def: Add PSI, PDI and XF, CXF modes.
                   3446: 
                   3447: Sat Apr  1 00:50:11 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3448: 
                   3449:        * ns32k.md (ashd, lshd): Delete patterns that logand the count with 31.
                   3450:        The shift count is not truncated on this machine.
                   3451: 
                   3452:        * combine.c (subst): Simplify nested or's, nested xor's.
                   3453:        (try_distrib): XOR doesn't distribute through anything.
                   3454: 
                   3455:        * rtl.c (rtx_equal_p): Don't die on null pointers.
                   3456: 
                   3457:        * loop.c (eliminate_biv): Use COMPARE, not MINUS, in generated compare.
                   3458: 
                   3459:        * loop.c (invariant_p): Mem refs in constant pool are invariant.
                   3460: 
                   3461:        * c-decl.c (redeclaration_error_message): If -traditional, allow
                   3462:        redeclarations of typedef provided they agree.
                   3463: 
                   3464:        * c-decl.c (start_decl): Do expand_decl on the decl that pushdecl
                   3465:        returns.  If there was a prev. decl with a different type,
                   3466:        we have changed its type and cleared its old rtl, so it need new rtl.
                   3467: 
                   3468: Sat Apr  1 00:50:11 1989  Matthew Self  (rms at sugar-bombs.ai.mit.edu)
                   3469: 
                   3470:        * expr.c (convert_move): Modified to use mode classes
                   3471:        instead of refering to specific machine modes.
                   3472: 
                   3473:        * expr.c (do_jump): Converted to use CONST0_RTX macro.
                   3474:        do_jmp no longer refers to any machine modes directly except
                   3475:        for VOIDmode!
                   3476: 
                   3477:        * expr.c (compare, compare1): Modified to use CONST0_RTX
                   3478:        macro.  No longer refers to any machine modes directly
                   3479:        except VOIDmode and BLKmode!
                   3480: 
                   3481:        * machmode.def: Documented assumptions made about the order
                   3482:        of machine modes during mode widening.
                   3483: 
                   3484:        * optabs.c (expand_binop, expand_twoval_binop, expand_unop,
                   3485:        emit_cmp_insn): Added mode widening which is independent of
                   3486:        specific machine modes.  It assumes that we may widen to any
                   3487:        higher numbered mode of the same mode class.
                   3488:          NOTE: the checks for VOIDmode ops which were present in
                   3489:        QI and HI to SI widening are now present in all widening.
                   3490:        I assume this is correct.  Also, widening is now possible
                   3491:        from QI to HI.  This may or may not be a good thing....
                   3492: 
                   3493:        * rtl.h (CONST0_RTX): Added definition of new macro
                   3494:        CONST0_RTX (mode).
                   3495: 
                   3496:        * rtl.h (GET_NOTE_INSN_NAME, GET_REG_NOTE_NAME): New macros.
                   3497:        * rtl.c (note_insn_name, reg_note_name): New tables.
                   3498:        * rtl.def (NOTE): Change last field from `i' to `n'.
                   3499:        * rtl.c (print_rtx): Print mode of INSN_LIST or EXPR_LIST as reg-note.
                   3500:        Print operand code `n' as name of kind of note.
                   3501:        (read_rtx): treat `n' like `i'.
                   3502: 
                   3503:        * loop.c (struct induction): Add `mode' field.
                   3504:        (strength_reduce, record_giv): Set the `mode' field in V.
                   3505:        (can_eliminate_biv_p, eliminate_biv): Use that field.
                   3506: 
                   3507:        * loop.c (struct iv_class): `init_insn' records what inits the biv.
                   3508:        Replaces `init_val_set' flag.
                   3509:        (strength_reduce): Update and test `init_insn' instead.
                   3510:        Use of a biv between its init and the start of the loop
                   3511:        does not preclude its elimination from the loop.
                   3512:        Setting a giv is ok for eliminating a biv, even if giv is "ignore",
                   3513:        since that just means giv will be combined with another.
                   3514:        Handle some DEST_ADDR givs for that purpose.
                   3515:        Test for giv-setting before check can_eliminate_biv_p.
                   3516:        New error check for replaceable giv whose value needed after loop.
                   3517:        (only_reg_use_p): New fn.
                   3518: 
                   3519:        * expr.c (expand_expr): PLUS, MINUS with EXPAND_SUM:
                   3520:        Associate even harder.
                   3521: 
                   3522:        * loop.c (strength_reduce): Treat all constant biv init vals like ints.
                   3523: 
                   3524:        * loop.c (strength_reduce): Clear all_reduced when v->ignore is set;
                   3525:        the code to check this later didn't always do the job.
                   3526: 
                   3527:        * loop.c (verify_loop): Set loop_continue.
                   3528:        (scan_loop): mention its value.
                   3529:        * rtl.h: Define NOTE_INSN_LOOP_CONT.
                   3530:        * stmt.c (expand_loop_continue_here): Output one.
                   3531: 
                   3532: Fri Mar 31 10:08:29 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3533: 
                   3534:        * c-typeck.c (pointer_int_sum, pointer_diff): Treat const void * like
                   3535:        void *.
                   3536: 
                   3537:        * rtl.c (rtx_addr_varies_p): Don't die on null exp.
                   3538:        * cse.c (refers_to_mem_p, refers_to_p): Likewise.
                   3539: 
                   3540:        * gcc.c (validate_switches, validate_all_switches): New fns.
                   3541:        Mark a switch as valid if any compiler spec or the linker spec
                   3542:        matches it, even for languages not being used.
                   3543: 
                   3544: Thu Mar 30 00:22:14 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3545: 
                   3546:        * loop.c (loop_optimize, move_movables): when moving a `clr' insn used
                   3547:        in zero-extension, sometimes change it to an `and' so that the
                   3548:        significant low bits are not clobbered.
                   3549: 
                   3550:        * cccp.c: Implement __BASE_FILE__ and #once.
                   3551:        (savestring): New fn.
                   3552:        (struct file_name_list): new name for struct directory_stack.
                   3553:        (enum node_type): Add T_ONCE, T_BASE_FILE.
                   3554:        (directive_table): Add #pragma once.
                   3555:        (initialize_builtins): Add __BASE_FILE__.
                   3556:        (special_symbol): Handle __BASE_FILE__, together with __FILE__.
                   3557:        (do_include): Ignore the file if it's on the #pragma once list.
                   3558:        (do_once): New fn; add current file to #pragma once list.
                   3559: 
                   3560:        * cccp.c (do_include): Don't add non-ex files to list of deps.
                   3561: 
                   3562:        * config.gcc: Use {...:-...}, not {...=...}.
                   3563: 
                   3564:        * c-parse.y: Add precedence for IF/ELSE, and for parens;
                   3565:        avoids some conflicts.
                   3566: 
                   3567:        * tm-newsgas.h: Include tm-news.h and define USE_GAS.
                   3568: 
                   3569:        * tm-news.h: New name for tm-news800.h.
                   3570:        If not USE_GAS, define SONY_ASM.
                   3571:        Don't define USE_GAS by default.
                   3572:        (CPP_PREDEFINES): Various alternatives depending on processor type.
                   3573:        (ASM_FORMAT_PRIVATE_NAME): Override this.
                   3574:        (ASM_IDENTIFY_GCC): Override; output nothing.
                   3575:        (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE): Round fsize up to % 4.
                   3576:        Max for halfword link insn is 32k, not 64k.
                   3577:        (FUNCTION_EPILOGUE): Don't output move.l if no regs to restore.
                   3578:        (PRINT_OPERAND_ADDRESS): Change handling of tableref pc-rel addresses.
                   3579:        * m68k.md (movhi): Add SONY_ASM conditional.
                   3580: 
                   3581:        * cse.c (cse_insn): If replacing a dest address, preserve MEM_IN_STRUCT
                   3582: 
                   3583:        * gcc.c (error, fatal): alternate varargs defns if HAVE_VPRINTF.
                   3584: 
                   3585: Wed Mar 29 09:54:13 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3586: 
                   3587:        * gcc.c (process_command): Check WORD_SWITCH_TAKES_ARG, so that
                   3588:        -Tdata can be handled right.
                   3589: 
                   3590:        * stmt.c (check_for_full_enumeration_handling): new fn, for warn_switch
                   3591:        (expand_end_case): Call it, if orig index was enum.
                   3592:        * toplev.c (main): Handle -Wswitch.
                   3593:        * c-parse.y (SWITCH stmt): Pass orig switch expr to expand_end_case.
                   3594: 
                   3595:        * tm-*.h, out-*.c: Uniformly use reg_names, not reg_name, and don't
                   3596:        define any duplicates.
                   3597:        * final.c: Delete reg_name.
                   3598: 
                   3599:        * c-parse.y (is_reserved_word): Add keywords __asm and __inline;
                   3600:        also __const and __volatile.
                   3601:        (yylex): Keywords that start with `__' are recognized regardless of
                   3602:        -traditional or -ansi.
                   3603: 
                   3604:        * c-parse.y (check_newline): Always recognize #ident.
                   3605:        Macro IDENT_DIRECTIVE is no more.
                   3606:        If ASM_OUTPUT_IDENT is undefined, don't output anything for #ident.
                   3607:        * tm-3b1.h: Don't define IDENT_DIRECTIVE or ASM_OUTPUT_IDENT.
                   3608:        * tm-encore.h, tm-i386gas.h, tm-i368v.h, tm-sun386i.h, tm-vaxv.h:
                   3609:        Don't define IDENT_DIRECTIVE; define ASM_OUTPUT_IDENT to output in
                   3610:        default way.
                   3611: 
                   3612:        * expr.h (RETURN_IN_MEMORY): New macro, default defn here.
                   3613:        * expr.c (expand_call): Use it to control where to return value.
                   3614:        * stmt.c (expand_function_start): Likewise.
                   3615: 
                   3616:        * out-sparc.c (find_addr_reg): Abort if none found.
                   3617:        Eliminate confusion; do only one change between tests for PLUSness.
                   3618:        (output_move_double): Arg to find_addr_reg is address, not mem ref.
                   3619:        * out-m68k.c, out-spur.c, out-i386.c, out-alliant.c: Likewise.
                   3620: 
                   3621:        * jump.c (find_cross_jump): Don't let either E1 or E2 be included
                   3622:        in the range of matching insns preceding the other (E2 or E1).
                   3623: 
                   3624:        * c-parse.y (check_newline): No error for `#pragma\n'.
                   3625: 
                   3626:        * Makefile (gcc.o): Control STANDARD_STARTFILE_PREFIX here.
                   3627: 
                   3628:        * stmt.c (walk_fixup_memory_subreg): handle null.
                   3629: 
                   3630:        * tm-sparc.h (FUNCTION_BLOCK_PROFILER): Change LPBnn to LPYnn,
                   3631:        to avoid conflict with final.c.
                   3632: 
                   3633: Tue Mar 28 15:23:17 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3634: 
                   3635:        * cccp.c (do_include): If fail, print system error message.
                   3636:        (perror_with_name): Use more standard error format.  Inc. `errors'.
                   3637: 
                   3638:        * dbxout.c (dbxout_function): Output any temporary types
                   3639:        that were made by dbxout itself.
                   3640: 
                   3641:        * stmt.c: always use an epilogue if pcc-struct-return.
                   3642:        (expand_function_start): Compute return_label after testing that.
                   3643:        (expand_function_end): Output a return insn after pcc-struct-return
                   3644:        processing, if there is a return insn.
                   3645:        (expand_null_return): Don't output a return insn, in that case.
                   3646:        Simplify the conditions--depends entirely on HAVE_return.
                   3647: 
                   3648:        * tm-m68k.h (FUNCTION_BLOCK_PROFILER): Use jsr, not call.
                   3649: 
                   3650:        * reload.c (find_reloads): Certain mem addresses will be offsetable
                   3651:        after reloading; in particular, those where reg_equiv_address applies.
                   3652: 
                   3653:        * loop.c (check_dbra_loop): Change MINUS to COMPARE.
                   3654: 
                   3655:        * c-typeck.c (convert_for_assignment): Return THE standard error_mark.
                   3656: 
                   3657: Thu Mar 23 09:39:02 1989  Richard M. Stallman  (rms at watson)
                   3658: 
                   3659:        * c-parse.y (components): Error if empty.
                   3660: 
                   3661:        * dbxout.c (dbxout_symbol): Output const variables as N_STSYM.
                   3662: 
                   3663:        * varasm.c (force_const_mem): Use ASM_OUTPUT_DOUBLE_INT if defnd.
                   3664: 
                   3665:        * c-decl.c (grokdeclarator): Warn about `long long long'.
                   3666: 
                   3667:        * reload1.c (reload): When changing REG to MEM, clear REG_USERVAR_P.
                   3668:        * final.c (alter_subreg): Preserve volatile bit of MEM.
                   3669: 
                   3670:        * m68k.md (cmpsi, cmphi): Permit cmpm.
                   3671: 
                   3672:        * gcc.c (find_file): Use standard_startfile_prefix_2.
                   3673:        Now search /usr/local/lib/, /lib/ and /usr/lib/.
                   3674: 
                   3675:        * tm-m68k.h (PRINT_OPERAND): Support code `d'.
                   3676:        * m68k.md (cmpsi, cmphi, cmpqi): Use it for all mem addresses.
                   3677: 
                   3678:        * final.c (output_asm_insn): Don't allow %LETTER without an
                   3679:        operand number.
                   3680:        * tm-m68k.h, m68k.md, tm-hp9k320.h, tm-news*.h: Use %@ instead of %s.
                   3681:        * tm-alliant.h, alliant.md: Likewise.
                   3682:        * i386.md, out-i386.h: Put `0' after each %L, %W, %B, %S, %Q, %R.
                   3683: 
                   3684:        * stmt.c (expand_end_stmt_expr): Pop pending stack args.
                   3685: 
                   3686:        * varasm.c (assemble_variable): For 0-size common variable,
                   3687:        allocate at least 1 byte.
                   3688: 
                   3689:        * tm-encore.h (ASM_OUTPUT_DOUBLE, PRINT_OPERAND): Use 0f, not 0l,
                   3690:        for doubles.
                   3691: 
                   3692: Mon Mar 13 10:24:56 1989  Richard M. Stallman  (rms at ccvi)
                   3693: 
                   3694:        * out-i386.h (function_prologue, function_epilogue):
                   3695:        Use call_used_regs, not a copy, so -f options work.
                   3696:        Save regs in the opposite order.
                   3697:        Save regs even starting from 0 if they happen to be call-saved.
                   3698: 
                   3699:        * Bug fixes from Rob McMahon.
                   3700: 
                   3701:        * loop.c (strength_reduce): When inserting insn to set
                   3702:        nonreplaceable giv, put it after all the consecutive insns
                   3703:        that compute it.
                   3704: 
                   3705:        * reload.c (find_reloads): When forcing const to mem,
                   3706:        use the insn's operand mode, not the const's mode.
                   3707: 
                   3708:        * reload1.c (choose_reload_targets): Use wider of inmode and outmode
                   3709:        when determining have_groups.
                   3710: 
                   3711:        * reload1.c (choose_reload_targets): typo checked wrong insn with
                   3712:        constraint_accepts_reg_p.
                   3713: 
                   3714:        * reload1.c (choose_reload_targets): Enable #if-0'd code for
                   3715:        forgetting old reloads in case of output reload from a non-spill-reg.
                   3716: 
                   3717: Sun Mar 12 00:04:49 1989  Richard M. Stallman  (rms at ccvi)
                   3718: 
                   3719:        * c-parse.y (yyerror): Add forward-decl here.
                   3720:        * c-tree.h: Delete decl here.
                   3721: 
                   3722:        * New macro USE_C_ALLOCA.
                   3723:        * cse.c (cse_main): Do alloca (0) to clear out C alloca.
                   3724:        * flow.c (life_analysis):
                   3725:        * local-alloc.c (local_alloc):
                   3726:        * reload1.c (reload_as_needed): likewise.
                   3727: 
                   3728:        * loop.c (emit_iv_init_code, eliminate_biv):
                   3729:        Always put constant in a PLUS last.
                   3730: 
                   3731:        * gcc.c (make_switch): Unused function deleted.
                   3732: 
                   3733:        *gcc.c (switches): Each switch has a `used' field.
                   3734:        (process_command): Init it to 0 when making `switches'.
                   3735:        (do_spec_1, handle_braces, give_switch): Set to 1 when switch is used.
                   3736:        (main): If it remains 0 at the end, print error message.
                   3737: 
                   3738:        * expr.c (convert_move, convert_to_mode): Don't truncate a MEM in
                   3739:        place if it is volatile.
                   3740: 
                   3741:        * loop.c (strength_reduce): When reducing a giv, if the biv is
                   3742:        incremented between the giv's creation and its use, increment
                   3743:        the reduced giv var *after* its use.
                   3744: 
                   3745:        * c-decl.c (duplicate_decls): Warn about proto vs nonproto
                   3746:        only if no other errors apply.
                   3747: 
                   3748:        * jump.c (invert_exp): Don't crash if arg is null.
                   3749: 
                   3750:        * alliant.md (float*i*f2): Don't allow immediate ops.
                   3751:        (sne): Fix typo, fsne => fsneq.
                   3752: 
                   3753:        * expr.c (store_one_arg, expand_call): When size doesn't matter,
                   3754:        pass const0_rtx, not (rtx) 0.
                   3755: 
                   3756:        * expr.c (do_jump): Args to invert_exp were missing.
                   3757: 
                   3758:        * gcc.c (store_arg): Now 2 separate args for delete-on-success
                   3759:        and delete-on-failure.  All calls changed.
                   3760:        (do_spec_1): DELETE_THIS_FILE is meaningful for output files.
                   3761: 
                   3762:        * config/xm-alliant.h (LINK_SPEC): Pass -X to linker.
                   3763: 
                   3764: Sat Mar 11 10:30:41 1989  Richard M. Stallman  (rms at ccvi)
                   3765: 
                   3766:        * tm-*.h, xm-*.h, *.md: Moved to subdir `config'.
                   3767:        * output-*.c: Moved to `config/out-*.c'.
                   3768:        * Makefile (.c.o): Define rule to use -Iconfig when compiling.
                   3769:        (various): Delete the commands from some compilation rules.
                   3770:        Put -Iconfig in other compilation commands.
                   3771:        Also some reordering of variable defs and comments for cleanliness.
                   3772:        (realclean): Change a shell comment to a Make comment.
                   3773: 
                   3774:        * fold-const.c (fold): Simplify and extend TRUTH_... operators
                   3775:        knowing that args must be ints and values will be 0 or 1.
                   3776: 
                   3777:        * gcc.hlp: New file (for VMS).
                   3778: 
                   3779:        * reload1.c (reload): Don't let two 2-groups overlap.
                   3780: 
                   3781:        * reload.c (push_reloads): When a plain reg matches a reload
                   3782:        for an increment, don't change the reload_in to a plain reg.
                   3783:        Leave the increment there.
                   3784: 
                   3785:        * integrate.c (expand_inline_function): Don't try to inline
                   3786:        unless the parm machine modes really match what's expected.
                   3787: 
                   3788:        * stmt.c (emit_case_nodes): default_label is an rtx, not tree.
                   3789: 
                   3790:        * tm-next.h (DOLLARS_IN_IDENTIFIERS): Define it as 1.
                   3791: 
                   3792:        * output-sparc.c (output_move_double): Don't trust random structs
                   3793:        to be double-word aligned.
                   3794: 
                   3795:        * gcc.c: Pass -Wcomments to cpp.
                   3796: 
                   3797:        * rtl.def (ASM_OPERANDS): New operands, source file and line.
                   3798:        * rtl.h (ASM_OPERANDS_*): New macros for components of ASM_OPERANDS.
                   3799:        * stmt.c (expand_asm_operands): Use new fields, not REG_ASM_* notes.
                   3800:        * toplev.c (error_for_asm): likewise.
                   3801:        * rtl.h (enum reg_note): Delete REG_ASM_FILE, REG_ASM_LINE.
                   3802: 
                   3803:        * combine.c (try_combine): Check explicitly for volatility in I2, I1.
                   3804: 
                   3805: Fri Mar 10 19:30:10 1989  Richard M. Stallman  (rms at ccvi)
                   3806: 
                   3807:        * c-parse.y (GOTO stmt): Set TREE_USED for the label.
                   3808:        * c-decl.c (poplevel): Warn about unused label.
                   3809: 
                   3810:        * c-decl.c (warn_pointer_arith, warn_strict_prototypes): New vars.
                   3811:        (lang_decode_options): Options to set them.
                   3812:        * c-typeck.c (pointer_int_sum, c_sizeof): Maybe warn if bad target.
                   3813:        * c-decl.c (grokparms): Maybe warn if nonprototype fn decl.
                   3814: 
                   3815:        * flags.h, toplev.c (warn_shadow): New flag.
                   3816:        * toplev.c (main): Decode it.
                   3817:        * c-decl.c (pushdecl): Maybe warn about any shadowing.
                   3818:        Existing parm-shadowing warning now disabled if shadowing decl
                   3819:        is also a parm.
                   3820: 
                   3821:        * flags.h, toplev.c (warn_id_clash, id_clash_len): New flags.
                   3822:        * toplev.c (main): Decode -Wid-clash-LEN.
                   3823:        * tree.c (get_identifier): Implement warning if two idents match.
                   3824: 
                   3825:        * toplev.c (compile_file): Warn about statics defined and unused.
                   3826: 
                   3827:        * rtl.h (CONST0_RTX): New macro.
                   3828: 
                   3829:        * recog.c (offsetable_address_p): New 1st arg says whether to demand
                   3830:        a strictly valid address.
                   3831:        (offsetable_memref_p): Pass nonzero.
                   3832:        * stmt.c (optimize_bit_field): Pass zero.
                   3833: 
                   3834:        * cccp.c (main): Allow -Wcomment like -Wcomments.
                   3835:        * c-decl.c (lang_decode_options): Likewise.
                   3836: 
                   3837: Sun Mar  5 15:02:59 1989  Randall Smith  (randy at apple-gunkies.ai.mit.edu)
                   3838: 
                   3839:        * m68k.md [tstdf, cmp[sd]f, truncdfsf2, floatsi[sd]f2, add[sd]f3,
                   3840:        sub[sd]f3, mul[sd]f3, div[sd]f3, neg[sd]f2, abs[sd]f2]: Made sure
                   3841:        that the test function's in the match_operands of the define_expand
                   3842:        and define_insn's matched, and made that test function
                   3843:        "register_operand" when both define_insn's really needed registers
                   3844:        in that spot.
                   3845: 
                   3846: Sat Mar  4 00:25:37 1989  Richard M. Stallman  (rms at c2v)
                   3847: 
                   3848:        * expr.c (emit_push_insn): Don't ever bypass the big-endian
                   3849:        padding at the end.
                   3850: 
                   3851:        * cccp.c (deps_output): Break line if would otherwise exceed 75 chars.
                   3852:        Make a name for that value 75.
                   3853: 
                   3854:        * combine.c (subst): Handle general case of (subreg (sign_extend X)).
                   3855: 
                   3856:        * tm-sun386i.h (CPP_PREDEFINES): Define `sun'.
                   3857: 
                   3858:        * fixincludes: change `find' calls to find dirs thru symlinks.
                   3859: 
                   3860:        * flow.c (mark_set_1): (set (subreg (reg N))...)
                   3861:        does make reg N significant for this basic block.
                   3862: 
                   3863: Fri Mar  3 13:55:25 1989  Richard M. Stallman  (rms at c2v)
                   3864: 
                   3865:        * c-decl.c (parmlist_tags_warning): Print an explanation
                   3866:        for the first such warning.
                   3867: 
                   3868:        * i386.md (extendsfdf): Let op 1 match op0 if that is an fp reg.
                   3869: 
                   3870:        * expr.c (expand_call): Fix stupid errors copying pcc struct value.
                   3871: 
                   3872:        * varasm.c (output_constructor): Discard NOP_EXPRs from build_c_cast.
                   3873: 
1.1.1.14  root     3874: Thu Feb 23 05:55:57 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3875: 
                   3876:        * Version 1.34 released.
                   3877: 
                   3878:        * c-typeck.c (build_c_cast): If EXPR is an error mark, return that.
                   3879: 
                   3880:        * fold-const.c (div_and_round_double): Abort if divisor is 0.
                   3881:        (combine): Likewise, for real constants.
                   3882:        (real_zerop): New subroutine.
                   3883:        (fold): Don't try to fold division if divisor is 0.
                   3884:        Don't try to fold reals if can't do arithmetic on them.
                   3885:        Don't try to compare reals for TRUTH_..._EXPR if can't do arith.
                   3886:        Use real_zerop to test reals for zeroness.
                   3887:        For TRUTH_ANDIF_EXPR and TRUTH_ORIF_EXPR, can simplify based on
                   3888:        first operand alone.
                   3889: 
                   3890:        * c-typeck.c (store_init_value): Fix error msg text.
                   3891: 
                   3892:        * tm-sparc.h (FUNCTION_PROFILER): Use `mcount'.
                   3893:        * tm-sun4os3.h (FUNCTION_PROFILER): Override it; use `.mcount'.
                   3894: 
                   3895: Wed Feb 22 04:33:22 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3896: 
                   3897:        * tm-hp9k320.h (CPP_SPEC, CPP_PREDEFINES): Make handling of
                   3898:        -Dmc68000 depend on TARGET_DEFAULT.
                   3899: 
                   3900:        * tm-sparc.h (FUNCTION_PROFILER): Missing newline in fprintf.
                   3901: 
                   3902:        * integrate.c (expand_inline_function): Don't map struct-value-address
                   3903:        in memory if fn does not use it.
                   3904: 
                   3905:        * c-parse.y (check_newline): At skipline, detect eof.
                   3906: 
                   3907:        * stmt.c (uninitialized_vars_warning): Change text of warning.
                   3908: 
                   3909: Tue Feb 21 03:58:50 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3910: 
                   3911:        * output-sparc.c (output_mul_insn): Handle case of both args
                   3912:        in reg 8, or both in reg 9.
                   3913: 
                   3914:        * tm-sparc.h (ASM_SPEC): Define, to handle -pipe.
                   3915: 
                   3916:        * tm-sparc.h (FUNCTION_PROFILER): Add omitted fprintf args.
                   3917:        (BLOCK_PROFILER): Likewise.  Use tempvar.
                   3918: 
                   3919:        * m68k.md (QImode btst): Allow nonoffsetable mem refs.
                   3920: 
                   3921: Mon Feb 20 00:32:42 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3922: 
                   3923:        * flow.c (mark_used_regs): Don't record about global reg vars.
                   3924: 
                   3925:        * config.gcc (convex-*): tm file names are tm-convex1.h, tm-convex2.h.
                   3926: 
                   3927:        * tm-vax.h, tm-ns32k.h, tm-alliant.h: Define PCC_STATIC_STRUCT_RETURN.
                   3928: 
                   3929:        * gcc.c (compilers): Pass `-a' to cc1.
                   3930:        * tm-sun3.h, tm-sparc.h (LIB_SPEC): Define, to handle `-a'.
                   3931: 
                   3932:        * expr.c (emit_push_insn): Copy stack addresses to be passed to bcopy;
                   3933:        old method of preadjustment is broken by changes in emit_library_call.
                   3934: 
                   3935:        * c-decl.c (finish_decl): New temp `temporary'; don't get confused
                   3936:        about whether allocation was temporary.
                   3937: 
                   3938: Sun Feb 19 17:03:35 1989  Chris Smith  (csmith at mozart)
                   3939: 
                   3940:        * tm-convex.h: define PCC_STATIC_STRUCT_RETURN
                   3941: 
                   3942:        * convex.md:
                   3943:        remove pshea patterns, movsi does it better.
                   3944:        add ashift:DI abs:DF abs:SF
                   3945:        (tstdi): use a clobbered register instead of a bogus DImode zero.
                   3946:        (trunchiqi2): delete noninstruction cvth.b
                   3947:        (udivsi3, udivhi3, udivqi3): deleted, expand_divmod does it now.
                   3948:        (call, call_value): delete stupid call/ret -> jump optimization.
                   3949:        (call, call_value): flush call_ap_check, use reg_mentioned_p instead.
                   3950: 
                   3951:        * convex.md: (movxx): swap constraint alternatives so that the
                   3952:        leftmost alternative is (set =g r).  This makes (set mem const)
                   3953:        get combinable input reloads of const instead of uncombinable
                   3954:        output reloads to mem.  They still do not combine, but wtf,
                   3955:        I'll inch up on it.
                   3956: 
                   3957:        * output-convex.c: (const_double_{high,low}_int): new routines
                   3958:        to pick apart const_doubles for assembler.
                   3959: 
                   3960: Sun Feb 19 01:40:17 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3961: 
                   3962:        * sparc.md (shift memory right 24 bits): Another `a1' typo.
                   3963: 
                   3964:        * config.gcc (convex-*): Delete troublesome whitespace.
                   3965: 
                   3966:        * c-decl.c (grokparms): Delete redundant `parm != 0' tests.
                   3967: 
                   3968:        * stmt.c (fixup_memory_subreg): Slight simplification.
                   3969: 
                   3970:        * tm-sparc.h (FUNCTION_PROFILER): Fill delay slot.
                   3971:        (FUNCTION_BLOCK_PROFILER): Use sethi.
                   3972:        (BLOCK_PROFILER): Use %g2, not %g0.  Use sethi.
                   3973: 
                   3974: Sat Feb 18 02:11:25 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3975: 
                   3976:        * expr.c (expand_expr): Ignore const array's initial value
                   3977:        if it's an error_mark.
                   3978:        * c-decl.c (finish_decl): Set DECL_INITIAL to an error_mark
                   3979:        if the decl is a permanent node.
                   3980: 
                   3981:        * cccp.c (rescan): If traditional, if macro ends inside string,
                   3982:        keep scanning for the end of the string.
                   3983:        (handle_directive): A line of just `#' becomes blank.
                   3984:        (collect_expansion): \ in strings traditionally doesn't hide macro arg.
                   3985: 
                   3986:        * m68k.md, alliant.md (addsi3): New alternative a=r+a, in addition
                   3987:        to old a=a+r, needed since reload-insns are not commuted.
                   3988: 
                   3989: Fri Feb 17 03:15:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   3990: 
                   3991:        * tm-m68k.h (PCC_STATIC_STRUCT_RETURN): Define it.
                   3992:        * toplev.c, flags.h: New var flag_pcc_struct_return.
                   3993:        * stmt.c (expand_function_start): Obey new flag and new variable.
                   3994:        * expr.c (expand_call): Obey new flag and new variable.
                   3995:        * varasm.c (assemble_static_space): New function.
                   3996: 
                   3997:        * stmt.c (expand_return): If we need cleanups, compute retval first
                   3998:        into pseudo reg, then do the cleanups, then copy it to return reg.
                   3999: 
                   4000: Thu Feb 16 02:59:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4001: 
                   4002:        * regclass.c (init_reg_sets_1): Win if STATIC_CHAIN_REGNUM undefined.
                   4003: 
                   4004:        * expr.c (expand_call): Handle conflict between two precomputed
                   4005:        args that are both function calls returning structures.
                   4006: 
                   4007:        * loop.c (move_movables): Bkwds test of m->partial, for a matching reg.
                   4008: 
                   4009:        * expr.c (emit_library_call, expand_call): Handle STACK_ARGS_ADJUST.
                   4010: 
                   4011: Wed Feb 15 01:59:15 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4012: 
                   4013:        * toplev.c (flag_caller_saves): New var, for -fcaller-saves.
                   4014:        DEFAULT_CALLER_SAVES controls initial value.
                   4015:        * global-alloc.c (find_reg): Do caller saves only if flag set.
                   4016:        * local-alloc.c (find_free_reg): Do caller saves only if flag set.
                   4017:        * tm-alliant.h, tm-convex.h: Define DEFAULT_CALLER_SAVES.
                   4018: 
                   4019: Wed Feb 15 01:59:15 1989  Chris Smith  (rms at sugar-bombs.ai.mit.edu)
                   4020: 
                   4021:        * caller-save.c: New file.
                   4022:        * regs.h (CALLER_SAVE_PROFITABLE): New macro.
                   4023:        (reg_n_calls_crossed): new int-vector replaces reg_crosses_calls.
                   4024:        * flow.c (allocate_for_life_analysis, propagate_block, dump_flow_info):
                   4025:        Use reg_n_calls_crossed.
                   4026:        * stupid.c (stupid_mark_refs, stupid_life_analysis): Likewise.
                   4027:        * global-alloc.c (find_reg): Sometimes allocate call-clobbered regs
                   4028:        for call-crossing pseudos.
                   4029:        New arg ACCEPT_CALL_CLOBBERED; callers changed.
                   4030:        * local-alloc.c (find_free_reg): Similar changes.
                   4031:        (qty_n_calls_crossed): New int-vector replaces qty_crosses_calls.
                   4032:        (alloc_qty, local_alloc, combine_regs, find_free_reg): change that var.
                   4033:        * regclass.c (call_fixed_regs, call_fixed_reg_set): new vars.
                   4034:        (init_reg_sets_1): Initialize them.
                   4035:        * reload1.c (reload): Call caller-saves processing if needed.
                   4036: 
                   4037: Wed Feb 15 01:59:15 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4038: 
                   4039:        * expr.c (expand_expr): INTEGER_CST for DImode: don't handle
                   4040:        endianness here.  So CONST_DOUBLE_LOW is always the low word.
                   4041:        * varasm.c (force_const_mem): Handle it here. 
                   4042: 
                   4043:        * expr.c (convert_move): widening followed by extendsidi2 had braino.
                   4044: 
                   4045:        * integrate.c: Don't include ctype.h; not needed and kills Sun cpp.
                   4046: 
                   4047:        * m68k.md (cmpsf, cmpdf and their recognizers):
                   4048:        Replace MINUS with COMPARE.
                   4049:        Also, use VOIDmode for COMPAREs, not SF or DF.
                   4050: 
                   4051:        * optabs.c (sign_expand_binop): Handle ops such as division where
                   4052:        an unsigned char could be widened and handled with signed int insns.
                   4053:        * expmed.c (expand_divmod): Use that.
                   4054: 
                   4055:        * c-typeck.c (digest_init): Allow for type variants in validating
                   4056:        initialization from a string constant.
                   4057: 
                   4058:        * c-typeck.c (decl_constant_value): Disable opt. if pedantic or
                   4059:        outside functions, so that validity of program is never affected.
                   4060: 
                   4061:        * fold-const.c (fold): Signedness-test for ABS_EXPR was backwards.
                   4062: 
                   4063: Tue Feb 14 01:30:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4064: 
                   4065:        * cccp.c (main): Don't omit normal output, if we want deps on
                   4066:        a separate stream.
                   4067: 
                   4068:        * c-decl.c (grokdeclarator): Don't record any arg types for functions
                   4069:        if -traditional.
                   4070: 
                   4071:        * print-tree.c (prtypeinfo): Mention permanent attribute.
                   4072: 
                   4073:        * tm-next.h: New file.
                   4074: 
                   4075:        * c-typeck.c (decl_constant_value): The DECL_INITIAL may be ERROR_MARK.
                   4076: 
                   4077:        * c-decl.c (duplicate_decls): For fns, new static decl overrides
                   4078:        old non-static one.
                   4079: 
                   4080:        * emit-rtl.c (gen_lowpar, gen_highpart): Use change_address, so we
                   4081:        preserve volatility, etc.
                   4082: 
                   4083:        * stmt.c (expand_expr_stmt): Use emit_filename, emit_lineno
                   4084:        as file and line for any warning.
                   4085:        * emit-rtl.c (emit_line_note): Set those vars.
                   4086: 
                   4087:        * c-decl.c (store_parm_decls): If -Wimplicit, warn of arg with no decl.
                   4088: 
                   4089:        * recog.c (offsetable_address_p): Use strict_memory_address_p,  
                   4090:        since called from reload.c.
                   4091: 
                   4092: Mon Feb 13 03:11:50 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4093: 
                   4094:        * sparc.md (compare-to-reg patterns): Some still had MINUS.
                   4095: 
                   4096:        * toplev.c (main): Warn if `-a' on system that can't handle it.
                   4097: 
                   4098:        * stmt.c (expand_asm_operands): Delete unused local `val'.
                   4099:        (pushcase_range): Likewise for `value'.
                   4100:        (fixup_var_refs): Likewise for `insn'.
                   4101:        * emit-rtl.c (start_sequence): Likewise for `save'.
                   4102:        * loop.c (scan_loop): Likewise for `before_start'.
                   4103:        * expr.c (expand_expr): Delete label `binop1'.
                   4104: 
                   4105:        * reload1.c (constraint_accepts_reg_p): Handle SUBREGs of REGs.
                   4106: 
                   4107: Sun Feb 12 05:37:46 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4108: 
                   4109:        * gnulib.c (__bb_init_func): New function
                   4110: 
                   4111:        * tm-m68k.h (BLOCK_PROFILER, FUNCTION_BLOCK_PROFILER): Defined.
                   4112: 
                   4113: Sat Feb 11 00:05:55 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4114: 
                   4115:        * tm-sparc.h (FUNCTION_PROFILER): Make it really work.
                   4116:        (BLOCK_PROFILER, FUNCTION_BLOCK_PROFILER): New macros.
                   4117: 
                   4118:        * final.c (final): Use BLOCK_PROFILER at start of each basic block.
                   4119:        (final_start_function): Use FUNCTION_BLOCK_PROFILER if -a.
                   4120:        (end_final): New fn to output the block-profiling tables.
                   4121:        * toplev.c (profile_block_flag): Set if -a.
                   4122:        (compile_file): Call end_final.
                   4123: 
                   4124:        * combine.c (try_combine): Avoid combining in most cases if I3
                   4125:        has an inc or dec and I1 or I2 uses the same register.
                   4126: 
                   4127:        * tree.c (size_in_bytes, int_size_in_bytes): Use type's main variant.
                   4128: 
                   4129:        * c-typeck.c (actualparameterlist): Error if parm type is incomplete.
                   4130: 
                   4131:        * expr.c (expand_call): Ignore args that have incomplete type.
                   4132: 
                   4133: Fri Feb 10 02:26:02 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4134: 
                   4135:        * c-parse.y (case stmts): strip dummy NOP_EXPRs.
                   4136: 
                   4137:        * reload1.c (reload_as_needed): Clear reg_{has,is}_output_reload here,
                   4138:        (choose_reload_targets): not here.
                   4139: 
                   4140: Thu Feb  9 01:35:55 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4141: 
                   4142:        * output-sparc.c (output_mul_by_constant): Forget cc status.
                   4143: 
                   4144:        * stmt.c (assign_parms): Don't put volatile parms in regs.
                   4145: 
                   4146:        * vax.md (jlbs/jlbc recognizers): Move them before jbc/jbs recognizers.
                   4147: 
                   4148:        * cse.c (fold_rtx): Handle (EQ (COMPARE ...) (CONST_INT 0)).
                   4149: 
                   4150:        * c-typeck.c (default_conversion, digest_init): For static const
                   4151:        nonvolatile scalar variable, use its initial value if known.
                   4152: 
                   4153:        * expr.c (expand_expr: case COMPONENT_REF): If containing structure
                   4154:        comes out volatile, leave the component MEM volatile too.
                   4155: 
                   4156:        * hard-reg-set.h: Fix multi-word case macros to swallow semicolon.
                   4157: 
                   4158:        * c-typeck.c (default_conversion): In array=>ptr, volatility
                   4159:        of target type comes from TREE_THIS_VOLATILE, not TREE_VOLATILE.
                   4160: 
                   4161:        * reload1.c (forget_old_reload_1, choose_reload_targets):
                   4162:        New array reg_is_output_reload is converse of reg_has_output_reload.
                   4163:        forget_old_reload_1 needs both.
                   4164: 
                   4165: Wed Feb  8 01:26:24 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4166: 
                   4167:        * reload1.c (forget_old_reloads_1): New fn, guts of forget_old_reloads.
                   4168:        Do process a spill reg if it isn't used for reloading in this insn.
                   4169:        (forget_old_reloads): Deleted, replaced with note_stores.
                   4170:        (reload_as_needed): Undo Feb 1 change.
                   4171:        Call forget_old_reloads_1 on pseudos autoincremented and not reloaded.
                   4172: 
                   4173:        * c-typeck.c (convert_for_assignment): Handle variant types.
                   4174: 
                   4175:        * c-decl.c (lang_decode_option): -Wall implies -Wunused.
                   4176: 
                   4177: Tue Feb  7 01:32:28 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4178: 
                   4179:        * combine.c (try_combine): Don't try adding outputs to an asm_operands.
                   4180: 
                   4181:        * cse.c (CHEAPER): Don't ever let a hard reg get ahead of a pseudo.
                   4182: 
                   4183:        * stmt.c (fixup_gotos): Don't crash on undef label if THISBLOCK is 0.
                   4184: 
                   4185:        * c-decl.c (parmlist_tags_warning): New fn.
                   4186:        * c-parse.y (parmlist, parmlist_or_identifiers): Call it,
                   4187:        to warn about any tags defined inside the parmlist.
                   4188:        * c-decl.c (grokparms): Don't warn about ptr to incomplete type.
                   4189:        The new warning is better.
                   4190: 
                   4191: Mon Feb  6 01:11:36 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4192: 
                   4193:        * expr.c (store_constructor): Incorrect ALIGN arg in store_field calls.
                   4194: 
                   4195:        * c-parse.y (%union): Delete unused alternative.
                   4196: 
                   4197:        * c-decl.c (grokparms): Use main variant to test for ptr to incomplete.
                   4198: 
                   4199:        * c-decl.c (finish_enum): Delete superfluous init for `pair'.
                   4200: 
                   4201:        * cse.c (fold_rtx): Optimize X+0, X-0 in floating point.
                   4202:        Fix typo in PLUS case; omitted value to compare GET_MODE_CLASS against.
                   4203:        (equiv_constant): Allow CONST_DOUBLE.
                   4204: 
                   4205:        * cse.c: Optimize past if-statements that are known to fail.
                   4206:        (cse_insn): If condjump becomes uncond to end of this block,
                   4207:        set cse_skip_to_next_block.
                   4208:        (cse_basic_block): If that happens, ignore rest of block, and maybe
                   4209:        treat next block as part of this one (if tables have room).
                   4210:        Resume insn that starts next basic block to be scanned.
                   4211:        (cse_main): Make room for at least 500 qtys.
                   4212:        (cse_end_of_basic_block): Subroutine broken out of cse_main.
                   4213: 
                   4214:        * c-parse.y (hash, is_reserved_word): Rewrite: new hash technique.
                   4215: 
                   4216:        * c-decl.c (duplicate_decls): Be smart about proto vs nonproto mismatch
                   4217:        involving a function definition.
                   4218: 
                   4219: Sun Feb  5 17:31:12 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4220: 
                   4221:        * alliant.md (movdi): Typo in `fmoved'.
                   4222:        (ftruncsf2): Handle moving into fp reg.
                   4223: 
                   4224:        * jump.c (jump_optimize): Typo in testing PRESERVE_DEATH_INFO_REGNO_P.
                   4225: 
                   4226:        * reload1.c (choose_reload_targets): Move all death notes to the
                   4227:        output reload insn.
                   4228: 
                   4229:        * m68k.md (fix_truncsfsi2,fix_truncdfsi2): Use accurate rtl pattern.
                   4230: 
                   4231:        * loop.c (delete_insn_forces): Use presence of REG_RETVAL to check
                   4232:        for value-of-library-call insn.
                   4233: 
                   4234: Sat Feb  4 18:17:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4235: 
                   4236:        * integrate.c (expand_inline_function): Make addresses of stack
                   4237:        slots valid somehow.
                   4238: 
                   4239:        * tm-3b1.h (DIVSI3_LIBCALL, etc.): Define these macros; avoid gnulib.
                   4240: 
                   4241:        * expmed.c (store_bit_field): Avoid (subreg (mem)) when converting
                   4242:        VALUE1 to SImode.
                   4243: 
                   4244:        * jump.c (jump_optimize): Do delete USE and CLOBBER insns.
                   4245:        This is needed for proper jump optimization.
                   4246: 
                   4247:        * rtl.def (COMPARE): New code.
                   4248:        * *.md (compare and related patterns): Use COMPARE, not MINUS:VOID.
                   4249:        * loop.c (eliminate_biv, can_eliminate_biv_p): Likewise.
                   4250:        * cse.c (fold_rtx, fold_cc0, cse_insn):
                   4251:        * output-m88k.c (output_{f,}compare, output_store):
                   4252:        * output-sparc.c (strict_single_insn_op_p, single_insn_src_p, safe_insn_src_p):
                   4253:        * combine.c (subst):
                   4254:        * jump.c (jump_back_p):
                   4255: 
                   4256: Fri Feb  3 18:34:27 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4257: 
                   4258:        * output-i386.c (notice_update_cc): If arith insn sets the cc's,
                   4259:        discard all remnants of previous cc value and flags.
                   4260: 
                   4261:        * sparc.md (ashiftrt mem by 24): Fix typo `a1'.
                   4262: 
                   4263: Thu Feb  2 14:55:44 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4264: 
                   4265:        * output-sparc.c (output_mul_insn): Clear the CC status.
                   4266: 
1.1.1.13  root     4267: Wed Feb  1 20:01:54 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4268: 
                   4269:        * Version 1.33 released.
                   4270: 
                   4271:        * reload1.c (reload_as_needed): On entering new basic block,
                   4272:        if it didn't need reload regs, forget all inherited contents of those.
                   4273: 
                   4274:        * tm-alliant.h (NOTICE_UPDATE_CC): Floating moves don't set the cc's.
                   4275:        Also delete the clauses and tests for FPA regs. 
                   4276: 
                   4277: Tue Jan 31 21:51:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4278: 
                   4279:        * config.gcc: Handle convex-c1, convex-c2.
                   4280:        * tm-convex1.h, tm-convex2.h: New files that include tm-convex.h.
                   4281:        * tm-convex.h: Define switches -mnoc1, -mnoc2.
                   4282: 
                   4283:        * config.gcc: rename `nofp' to `nfp', to match the file names.
                   4284: 
                   4285: Mon Jan 30 22:12:15 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4286: 
                   4287:        * output-sparc.c (output_delay_insn): Extract the operands,
                   4288:        call alter_subreg, constrain_operands and NOTICE_UPDATE_CC.
                   4289:        So callers other than output_eager_then_insn don't lose.
                   4290:        (output_eager_then_insn): No need to do that stuff.
                   4291: 
                   4292:        * symout.c (symout_block_symbols): Handle (MEM (REG)) for
                   4293:        variable-sized arrays.
                   4294: 
                   4295:        * tm-encore.h (ASM_SPEC): Always pass -j; avoid jump-range lossage.
                   4296: 
                   4297: Sun Jan 29 17:06:26 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4298: 
                   4299:        * alliant.md: Fix refs to CONST_DOUBLEs to use CONST_DOUBLE_{HIGH,LOW}.
                   4300: 
                   4301:        * combine.c (subst): (minus (zero_extend ...) (const_int ...)) opt.
                   4302:        now limited to within the context of (set (cc0) ...).
                   4303: 
                   4304: Sat Jan 28 14:26:08 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4305: 
                   4306:        * cse.c (fold_cc0): Missing `&' extracting CONST_DOUBLEs.
                   4307:        (fold_rtx): Don't put CONST_DOUBLEs together into a (CONST (PLUS...)).
                   4308: 
                   4309:        * output-convex.c (gen_cmp): Recognize CONST_DOUBLE as a constant.
                   4310: 
                   4311:        * tree.c (build_real_from_int_cst): Typo in REAL_ARITHMETIC case.
                   4312: 
                   4313:        * Makefile (bootstrap2): Don't use bootstrap3 as subroutine.
                   4314: 
                   4315:        * varasm.c (force_const_mem): Put the CONST_DOUBLE on the chain
                   4316:        if its MEM is stored in it; so it can be cleared at end of function.
                   4317: 
                   4318:        * stmt.c (emit_case_nodes): Put a compare before each cond-jump.
                   4319:        Two cond-jumps after one cond is invalid and makes cse produce garbage.
                   4320: 
                   4321: Fri Jan 27 01:05:01 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4322: 
                   4323:        * tm-sun2.h (CPP_SPEC): Define __HAVE_68881__ only if -m68881.
                   4324: 
                   4325:        * c-decl.c (start_decl): Don't expand_decl if DECL already has rtl.
                   4326:        (grokparms): If just declaring fcn, incomplete parm type is just
                   4327:        a warning, and don't discard the specified type.
                   4328: 
                   4329:        * expmed.c (expand_divmod): Be smarter about not clobbering args
                   4330:        with intermediate results; one mem can clobber another, and a reg
                   4331:        can clobber a mem.
                   4332: 
                   4333:        * tm-i386.h (FUNCTION_PROFILER): Use LPREFIX.  May actually work now.
                   4334:        * tm-i386gas.h: Include tm-bsd386.h, not tm-att386.h.
                   4335:        This means changing asm syntax.
                   4336:        #undef DBX_NO_XREFS and DBX_CONTIN_LENGTH.
                   4337: 
                   4338:        * sparc.md (eager branch peepholes): Don't forget 2nd arg to
                   4339:        safe_insn_src_p.
                   4340:        Don't print warnings.
                   4341:        * output-sparc.c: (strict_single_insn_op_p): Return 0 for floating
                   4342:        REG or MEM, since copying that may take 2 insns.
                   4343:        (operands_satisfy_eager_branch_peephole): require delay insn to
                   4344:        be strict_single_insn_op_p as well as safe_insn_src_p.
                   4345:        (operand_clobbered_before_used_after): Don't print warnings.
                   4346: 
                   4347:        * varasm.c (decode_rtx_const): Clear entire structure incl. gaps.
                   4348:        Avoids spurious hash mismatches.
                   4349:        (force_const_mem): If CONST_DOUBLE, store its CONST_DOUBLE_MEM field.
                   4350:        Also look in that field rather than hashing, to save time.
                   4351: 
                   4352:        * c-typeck.c (build_c_cast): If value is literal, mark NOP_EXPR as so.
                   4353:        (store_init_value): Change error msg.
                   4354: 
                   4355:        * c-decl.c (duplicate_decls): Classify prototype vs nonprototype
                   4356:        mismatches better.
                   4357: 
                   4358:        * tm-3b1.h: Fix comment.
                   4359: 
                   4360: Wed Jan 25 12:46:50 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4361: 
                   4362:        * Makefile (cleanlinks): Use -f.
                   4363: 
                   4364: Tue Jan 24 17:54:16 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4365: 
                   4366:        * cse.c (canon_hash): Fix paren error in last change.
                   4367: 
                   4368:        * varasm.c (immed_real_const_1): Missing arg to bcmp.
                   4369: 
                   4370: Mon Jan 23 02:43:45 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4371: 
                   4372:        * stor-layout.c (layout_type): BLKmode elts force array to be BLKmode.
                   4373: 
                   4374:        * genpeep.c, genoutput.c, genemit.c: Put `#include "real.h"' in output.
                   4375: 
                   4376:        * stmt.c (expand_expr_stmt): No "no effect" warning for error-mark.
                   4377: 
                   4378:        * varargs.h: Rename implicit arg name to __builtin_va_alist
                   4379:        which triggers code in assign_parms.  Does this really matter?
                   4380: 
                   4381:        * sparc.md (sne): New define_expand.
                   4382:        (seq recognizers): Handle sne as well.
                   4383:        * output-sparc.c ({strict_,}single_insn_src_p):
                   4384:        Some NEG and MINUS insns are actually 2 asm insns.
                   4385:        (safe_insn_src_p): No floating arith is safe; they can trap.
                   4386:        (eq_or_neq): New fn, for seq/sne recognizers.
                   4387: 
                   4388:        * c-decl.c (grokdeclarator, size of array type):
                   4389:        Strip from SIZE any NOP_EXPRs that don't change anything.
                   4390: 
                   4391:        * reload.c, recog.c: Include real.h so constraint macros can examine
                   4392:        CONST_DOUBLEs.
                   4393: 
                   4394: Sun Jan 22 04:12:54 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4395: 
                   4396:        * c-decl.c (init_decl_processing): Define __builtin_saveregs.
                   4397:        * tree.h: likewise.
                   4398:        * expr.c (expand_builtin): Handle it.
                   4399: 
                   4400:        * tm-sparc.h: Define TARGET_EAGER and -meager.
                   4401:        * sparc.md (eager branch peepholes): Reenable, but test TARGET_EAGER.
                   4402:        Change fb insns to use %F.  Delete `,a' from some of them.
                   4403:        * jump.c (jump_optimize): Don't delete USE and CLOBBER insns.
                   4404: 
                   4405:        * xm-vms.h (const): Define it as empty.
                   4406: 
                   4407:        * make-cccp.com: Move the rename of cexp_tab.c.
                   4408:        Compile cccp.c with no macro definitions.
                   4409: 
                   4410:        * cccp.c (main): VMS conditional for setting max_include_len.
                   4411: 
                   4412: Sat Jan 21 12:53:00 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4413: 
                   4414:        * varargs.h (va_start): On sparc, call __builtin_saveregs.
                   4415:        Delete the old conditional that used va-sparc.h.
                   4416:        Rename macros and locals to start with two underscores.
                   4417:        * va-sparc.h: File deleted.
                   4418: 
                   4419:        * c-decl.c (store_parm_decls): Initialize OTHERS.
                   4420: 
                   4421:        * stmt.c (assign_parms): Obey layout_decl.
                   4422: 
                   4423: Fri Jan 20 02:19:32 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4424: 
                   4425:        * cse.c (fold_rtx): For SYMBOL_REF and LABEL_REF, mask address
                   4426:        to 16 bits.
                   4427: 
                   4428:        * tree.h (NUM_TREE_CODES): NUM_TREE_CODE renamed.
                   4429: 
                   4430: Thu Jan 19 13:53:24 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4431: 
                   4432:        * c-typeck.c (mark_addressable): For global reg var, report error.
                   4433:        Now returns an int; value of 0 means caller should fail.
                   4434:        All calls (in this file) changed.
                   4435: 
                   4436:        * stor-layout.c (layout_decl): Don't let an more than 1 word
                   4437:        of any aggregate go in any 1 register.  (Needed for machines whose
                   4438:        integer regs are 64 bits).
                   4439: 
                   4440:        * tm-convex.h, xm-convex.h, convex.md, output-convex.c: new files.
                   4441: 
                   4442:        * expr.c (convert_move): Use extendqidi2, etc. for converting
                   4443:        small ints to double ints.  Use zero_extendsidi2 rather than
                   4444:        clearing the high half.
                   4445: 
                   4446: Wed Jan 18 01:20:52 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4447: 
                   4448:        * varasm.c (make_decl_rtl): If global `register' decl is invalid,
                   4449:        make ordinary non-register rtl.
                   4450: 
                   4451:        * output-sparc.c (operand_clobbered_before_used_after): new fn.
                   4452:        (reg_clobbered_p, safe_insn_src_p): New fns.
                   4453:        (single_insn_src_p): Treat constants all as ok, even though not
                   4454:        always literally so.  Also accept some SIGN_EXTENDs and ZERO_EXTENDs.
                   4455:        (strict_single_insn_src_p): New fn, like above but is strict
                   4456:        about constants and constant memory addresses.
                   4457:        (relop): New fn.
                   4458:        (output_move_double): Don't make a MEM, and don't use %m.
                   4459:        (output_delayed_branch): New name for output_delay_insn.
                   4460:        Now handle non-small constant operands.
                   4461:        Avoid duplicate loads of g1 for constant addresses.
                   4462:        Use recog_operand directly for output of the delay insn.
                   4463:        (output_delay_insn): Now a completely new fn.
                   4464:        (output_eager_then_insn, next_real_insn_no_labels): New fns.
                   4465:        (operands_satisfy_eager_branch_peephole): New fn.
                   4466: 
                   4467:        * sparc.md: New peepholes for testing a recently used operand.
                   4468:        New peepholes for delayed branches, incl. conditional ones.
                   4469:        ** Some of them commented out because they seem not to work.
                   4470:        (andcc recognizer): Fix typo, missing %.
                   4471:        (bgt): Change bgt to bg in output.
                   4472:        (reversed jumps): Replace with one pattern using match_operand.
                   4473:        It uses %F to output the condition.
                   4474:        (movsi): For round-valued immed const, use just a sethi.
                   4475:        For other immed, use explicit sethi and or.
                   4476:        (movhi, movqi): use `move' for reg source or small int source.
                   4477:        For other immed, use explicit sethi and or.
                   4478:        (movsi, etc.):  Handle all constant addresses like SYMBOL_REFs.
                   4479:        (movsf): Delete never-used duplicate code for constant addresses.
                   4480:        (addsi3, subsi3, cse'd multiply): Use sethi and or, rather than set.
                   4481:        (andsi3, iorsi3, xorsi3): Likewise.
                   4482:        (jump): Make an annulled branch.
                   4483: 
                   4484:        * tm-sparc.h (PROMOTE_PROTOTYPES): Define this.
                   4485:        (GO_IF_LEGITIMATE_ADDRESS): Now accept all constant addresses;
                   4486:        also cleaned up.
                   4487:        (NOTICE_UPDATE_CC): Don't change the G1 status when storing in memory.
                   4488:        Assume all PARALLEL insns are peepholes.
                   4489:        (PRINT_OPERAND): New codes C and N for outputting conditions,
                   4490:        either forward or reversed.  Also F for reversed floating.
                   4491: 
                   4492:        * jump.c (delete_for_peephole): New function to delete range of insns.
                   4493:        * genpeep.c (gen_peephole): Output code to use this.
                   4494: 
                   4495:        * Makefile (install): Fix typo, had $${name} for $${file}.
                   4496: 
                   4497: Tue Jan 17 00:00:12 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4498: 
                   4499:        * i386.md (ashlsi3): Use addl or leal for special cases.
                   4500: 
                   4501:        * c-decl.c (grokdeclarator): Make a non-global VAR_DECL public
                   4502:        if it is external.
                   4503: 
                   4504:        * masm386.c: Clean up formatting.
                   4505: 
                   4506:        * cse.c (fold_rtx): Typo simplifying x|0 or x^0
                   4507:        when the 0 comes second.
                   4508: 
                   4509:        * expmed.c (store_fixed_bit_field): For halfwords, verify that
                   4510:        the field fits in an *aligned* halfword.
                   4511:        (extract_fixed_bit_field): likewise.
                   4512: 
                   4513:        * expmed.c (store_split_bit_field): New arg align, passed in from
                   4514:        store_fixed_bit_field and passed back to it.
                   4515:        (extract_split_bit_field): likewise.
                   4516: 
                   4517:        * expr.c: Reinsert changes from Jan 2, mysteriously deleted Jan 3.
                   4518:        Also changes from Dec 23, Dec 28 and Dec 29.
                   4519: 
                   4520:        * tm-i386.h: Likewise for changes from Dec 30.
                   4521: 
                   4522:        * c-typeck.c (build_component_ref): If field's type is error-mark,
                   4523:        return an error-mark.
                   4524: 
                   4525: Mon Jan 16 14:16:54 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4526: 
                   4527:        * genpeep.c (main): Output code to exit early if insn is followed
                   4528:        by a barrier.
                   4529:        (gen_peephole): Reject barriers just like labels.
                   4530: 
                   4531:        * stmt.c (do_jump_if_equal): New arg UNSIGNEDP, for emit_cmp_insn.
                   4532:        Caller changed.  Now static.
                   4533: 
                   4534:        * final.c (final): Set INSN_DELETED_P in insns when output.
                   4535: 
                   4536:        * final.c (final): Re-set BODY if peephole does anything.
                   4537: 
                   4538:        * c-decl.c (grokparms): Ignore anything but PARM_DECLs in the list.
                   4539:        (store_parm_decls): If we had a prototype, separate out anything other
                   4540:        than a PARM_DECL declared in it, and pushdecl those at the end,
                   4541:        after DECL_ARGUMENTS is set.
                   4542: 
                   4543:        * stmt.c (expand_end_case): Do stack adjusts after computing index.
                   4544: 
                   4545:        * expr.c (store_one_arg): Handle padding for case of BLKmode
                   4546:        for which space was preallocated.
                   4547: 
                   4548:        * integrate.c (copy_rtx_and_substitute): When copying asm insn,
                   4549:        preserve sharing of the input-operand vectors.
                   4550:        (expand_inline_function): Clear {orig,copy}_asm_operands_vector
                   4551:        to make that mechanism work.
                   4552:        (save_for_inline, copy_for_inline): Likewise.
                   4553: 
                   4554:        * stmt.c (expand_asm_operands): Reject `+' in constraints.
                   4555:        Every output constraint requires `='; inputs reject it.
                   4556: 
                   4557:        * stmt.c (expand_function_end): Arg to fixup_gotos was missing.
                   4558: 
                   4559: Sun Jan 15 00:28:23 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4560: 
                   4561:        * cccp.c, gcc.c (main): Handle SIGPIPE.
                   4562:        (pipe_closed): New fn; report suitable fatal error.
                   4563: 
                   4564:        * loop.c (loop_optimize): Initialize moved_once.
                   4565: 
                   4566:        * gcc.c (do_spec): Don't call `execute' if value != 0.
                   4567:        Delete redundant second call to do_spec_1.
                   4568: 
                   4569:        * toplev.c (compile_file): Make declared-but-not-defined warnings
                   4570:        only if -Wunused.
                   4571: 
                   4572:        * stmt.c (emit_case_nodes): Fix typo setting gen_ble_pat.
                   4573: 
                   4574:        * tm-sparc.h ({U,}MODSI3_LIBCALL): Name was wrong.
                   4575: 
                   4576:        * gcc.c (env_exec_prefix refs): Don't try to open via it if it's null.
                   4577: 
                   4578:        * output-sparc.c (output_store, output_load_{fixed,floating}):
                   4579:        Fixed confusions between the mem ref and its address.
                   4580: 
                   4581:        * cse.c (canon_hash): global_regs has entries only for hard regs.
                   4582:        * flow.c (insn_dead_p, mark_set_p, mark_used_regs): Likewise.
                   4583: 
                   4584:        * cse.c (fold_rtx): More simplifications for MULT, IOR, AND, XOR
                   4585:        DIV and shifts with one arg 0 or 1.
                   4586: 
                   4587: Sat Jan 14 11:41:11 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4588: 
                   4589:        * c-typeck.c (build_array_ref): If pedantic, check for regdecl arrays.
                   4590: 
                   4591:        * fixincludes: Make all subdirs in advance, so no need for `dirname'.
                   4592: 
                   4593:        * genpeep.c (gen_peephole): Delete code to increment LABEL_NUSES;
                   4594:        instead, clear JUMP_LABEL for any jumps being deleted.
                   4595:        No need to test INSN1 for being a label, since not called then.
                   4596:        [If any of the matched insns is a JUMP_INSN, set want_jump,
                   4597:        and in that case make the matched peephole a JUMP_INSN itself.]
                   4598:        That's in an #if 0 now; it's good in jump, but not in final.
                   4599: 
                   4600:        * jump.c (jump_optimize): Don't do peepholes here.
                   4601:        * final.c (final): Do them here.
                   4602: 
                   4603:        * jump.c (jump_optimize): In optimizing `if (foo) bar; else break;',
                   4604:        don't try to invert anything but a standard-looking conditional jump.
                   4605: 
                   4606:        * jump.c (jump_optimize): Do peepholes on ALL BUT the first pass.
                   4607: 
                   4608:        * gcc.c (env_exec_prefix): New var used like user_exec_prefix
                   4609:        but set from envvar GCC_EXEC_PREFIX.
                   4610: 
                   4611: Fri Jan 13 13:21:59 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4612: 
                   4613:        * genpeep.c (gen_peephole): Test INSN1 for a label at the very start,
                   4614:        then test following insns at the end of the loop.
                   4615: 
                   4616:        * sparc.md (call recognizers): do CC_STATUS_INIT, for %g1.
                   4617: 
                   4618: Thu Jan 12 02:13:49 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4619: 
                   4620:        * varasm.c (make_decl_rtl): Recognize more error cases for reg vars:
                   4621:        BLKmode, or initializer given.
                   4622:        Distinguisn missing asm from invalid name.
                   4623: 
                   4624:        * expr.c (expand_call): Never return 0; return const0_rtx instead.
                   4625:        This makes expand_expr more uniform.
                   4626: 
                   4627:        * c-decl.c (grokparms): For ptr to incomplete type, just warn;
                   4628:        don't change the parm's type.
                   4629: 
                   4630:        * stmt.c (expand_return): Set RETVAL_RHS so as to recognize
                   4631:        tail-recursive fcn returning void.
                   4632:        Unconditionally test value of expand_expr for being a REG.
                   4633: 
                   4634:        * reload.c (find_reloads): Don't process insns that have
                   4635:        no constraint alternatives.  No more need for have_constraints.
                   4636: 
                   4637:        * recog.c (constrain_operands): New local var nalternatives.
                   4638:        Don't bother checking the insn if nalternatives is 0.
                   4639: 
                   4640: Wed Jan 11 01:27:48 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4641: 
                   4642:        * Implement global register decls.
                   4643: 
                   4644:        * varasm.c (make_decl_rtl): Handle global register vars.
                   4645:        (make_function_rtl): Set function_defined: after 1st function dfn.
                   4646:        (assemble_variable): Ignore global register vars.
                   4647: 
                   4648:        * c-decl.c (grokdeclarator): Don't reject global register decls.
                   4649:        (builtin_function): Use make_decl_rtl, not make_function_rtl,
                   4650:        to avoid setting function_defined.
                   4651: 
                   4652:        * regclass.c (init_reg_class{,_1}): Init and process global_regs.
                   4653:        They are fixed, and call-clobbered.
                   4654: 
                   4655:        * flow.c (insn_dead_p): Storing one of global_regs is never dead.
                   4656:        (mark_used_regs, mark_set_1): A global reg is never dead.
                   4657: 
                   4658:        * cse.c (canon_hash): Consider global regs volatile.
                   4659: 
                   4660: 
                   4661:        * expr.c (do_jump): Know how to invert jumps which are sequences.
                   4662: 
                   4663:        * dbxout.c, symout.c, final.c: On USG, use our own stab.h.
                   4664: 
                   4665:        * tm-i386gas.h: New file for GAS on sysV (with DBX debugging info).
                   4666: 
                   4667:        * m68k.md (bfchg and bfins patterns): Make # alternatives uniform.
                   4668:        * alliant.md: Likewise; also in movdf patterns.
                   4669: 
                   4670:        * genoutput.c (output_epilogue): Spurious `break' disabled
                   4671:        error check for mismatched # of alternatives.
                   4672:        (output_epilogue, scan_operands): Errors in input are not fatal.
                   4673: 
                   4674:        * flow.c (regno_uninitialized): Avoid crash if no basic blocks.
                   4675: 
                   4676:        * sparc.md (move insns): Delete special patterns that handled
                   4677:        symbolic constant addresses.  The main move patterns now do this.
                   4678:        * output-sparc.c (output_store, output_load_{fixed,floating}):
                   4679:        Subroutines to do the work for this; has the code from those
                   4680:        special patterns.  Also fixed bugs in testing against cc_status.mdep.
                   4681: 
                   4682:        * output-sparc.c (output_delay_insn): Clear the CC status.
                   4683:        This is necessary for %g1 in the case of a call insn.
                   4684: 
                   4685:        * tm-i386.h (REG_CLASS_CONTENTS): INDEX_REGS is now all but ESP.
                   4686:        (REGNO_REG_CLASS): Corresponding change.
                   4687:        (REG_CLASS_FROM_LETTER): Eliminate `x' letter since not used.
                   4688: 
                   4689:        * optabs.c (emit_cmp_insn): New arg ALIGN, used for BLKmode.
                   4690:        All callers changed.
                   4691:        Pass alignment (as rtx) as 4th arg to cmpstr gen functions.
                   4692:        Use cmpstrhi if available.
                   4693:        * expr.c (compare): Only this call passes a nonzero ALIGN.
                   4694: 
                   4695:        * expr.c (emit_push_insn, emit_block_move): Pass alignment (as rtx)
                   4696:        as 4th arg to movstr gen functions.
                   4697: 
                   4698: Tue Jan 10 23:43:05 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4699: 
                   4700:        * stor-layout.c (layout_type): Use BLKmode, if a struct isn't
                   4701:        aligned well enough for a scalar mode.
                   4702: 
                   4703:        * expr.c (expand_expr): For static CONSTRUCTOR, ensure memory
                   4704:        address is made valid.
                   4705: 
                   4706:        * genpeep.c (match_rtx): For MATCH_OPERATOR, set max_opno, n_operands.
                   4707: 
                   4708: Mon Jan  9 17:07:56 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4709: 
                   4710:        * varasm.c (output_constant): Split strings every 2000 chars.
                   4711: 
                   4712:        * stmt.c (expand_end_case): Test bkwds, handling constant switch arg.
                   4713: 
                   4714: Fri Jan  6 09:11:20 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4715: 
                   4716:        * output-sparc.c (output_delay_insn): Add parens to first if test.
                   4717:        (output_move_double): Turn addr for `sethi' into MEM for %m.
                   4718: 
                   4719:        * c-typeck.c (convert_for_assignment): move test for ERROR_MARK.
                   4720: 
                   4721:        * c-parse.y (unary_expr): Allow cast_expr as arg of unary op.
                   4722: 
                   4723:        * stmt.c (expand_decl): Don't abort if FUNCTION_DECL lacks rtl;
                   4724:        assemble_variable is called after this.
                   4725: 
                   4726:        * c-parse.y (primary -> identifier): Separate case for undeclared
                   4727:        identifier outside of functions; avoids confusing error msgs.
                   4728: 
                   4729: Thu Jan  5 01:24:47 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4730: 
                   4731:        * Makefile (install): Ignore errors in all `if' commands.
                   4732:        Create $(libdir) if nec.
                   4733: 
                   4734:        * Makefile (insn-*.[ch]): Put in empty commands.  May help Ultrix Make.
                   4735: 
                   4736:        * stmt.c (emit_case_nodes): New arg UNSIGNEDP says do unsigned jumps.
                   4737:        Arg INDEX is an rtx, not a tree.
                   4738:        (expand_end_case): Pass that arg.
                   4739:        (node_has_{low,high}_bound): check for overflow, avoid confusion.
                   4740: 
                   4741: Wed Jan  4 02:24:21 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4742: 
                   4743:        * sparc.md (movdi, movdf): Use `&' constraint when loading reg from;
                   4744:        otherwise can lose on (set (reg X) (mem (plus (reg X) (reg X+1)))).
                   4745: 
                   4746:        * expr.c (emit_push_insn): For memory scalar partially going in regs,
                   4747:        copy each word to reg before pushing.  Avoids memory-to-memory move.
                   4748:        Make the displaced address valid.
                   4749:        Also delete unfinished STACK_OFFSET variable.
                   4750: 
                   4751:        * c-parse.y (check_newline): Read just one #-directive and return.
                   4752:        This prevents lossage when toplev.c calls it to get the main input file
                   4753:        name, and it gets a following #ident as well.
                   4754: 
                   4755:        * c-decl.c (lang_decode_option): Set warn_cast_qual for -Wcast-qual.
                   4756:        * c-typeck.c (build_c_cast): Issue some warnings if set.
                   4757: 
                   4758:        * tm-3b1.h (ASM_OUTPUT_CASE_LABEL): Missing `;'.
                   4759: 
                   4760: Tue Jan  3 18:07:31 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4761: 
                   4762:        * expr.c (emit_library_call): Do force_operand on each operand
                   4763:        if it isn't a REG, MEM or constant.
                   4764:        Do this, or mode conversions, earlier, before loading any hard regs.
                   4765: 
                   4766:        * m68k.md (addsi3) [SGS]: Put a zero displacement in the `lea'.
                   4767: 
                   4768:        * c-typeck.c (default_conversion): Don't lose `const' or `volatile'
                   4769:        when converting array type to pointer.
                   4770: 
                   4771: Mon Jan  2 01:18:01 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4772: 
                   4773:        * expmed.c (store_bit_field, store_fixed_bit_field): New arg,
                   4774:        alignment in bytes the structure is known to have.
                   4775:        (store_fixed_bit_field): Handle working in halfwords,
                   4776:        in case the pointer isn't known to have fullword alignment.
                   4777:        * expmed.c (extract_bit_field, extract_fixed_bit_field): likewise.
                   4778:        (extract_bit_field): fix unsignedp arg to extract_fixed_bit_field.
                   4779:        * expr.c (store_field): New arg, passed to {store,extract}_bit_field
                   4780:        (expand_assignment, store_constructor): Pass that arg.
                   4781:        (expand_expr): Pass new arg to extract_bit_field.
                   4782: 
                   4783:        * m68k.md (casesi_2 recognizer): Offset always 6 for 3b1.
                   4784: 
                   4785:        * c-typeck.c (convert_for_assignment): Strip from rhs no-op NOP_EXPRs
                   4786:        put on by build_c_cast (to make the result not an lvalue).
                   4787:        (build_modify_expr, build_compound_expr): likewise.
                   4788:        (build_conditional_expr): likewise.
                   4789:        (actualparameterlist, build_function_call): likewise.
                   4790:        (default_conversion, truthvalue_conversion): likewise.
                   4791: 
                   4792:        * loop.c (move_movables): If reg has moved out of one loop,
                   4793:        divide `savings' by 2.
                   4794: 
                   4795: Sun Jan  1 03:00:07 1989  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4796: 
                   4797:        * c-typeck.c (truthvalue_conversion): Distribute the conversion
                   4798:        into the arms of a COND_EXPR.
                   4799: 
                   4800:        * cse.c (fold_rtx): Don't fold a MINUS with VOIDmode
                   4801:        into a symbolic constant--it's incorrect.
                   4802: 
                   4803:        * cse.c (cse_insn): If SRC is a subreg with known value, simplify it.
                   4804: 
                   4805:        * integrate.c (copy_rtx_and_substitute): Allow a ref to a part of
                   4806:        MEM parm whose actual parm is a reg, provided it refs
                   4807:        the low part of the MEM.
                   4808:        (function_cannot_inline_p): Don't inline functions which have
                   4809:        aggregate parameters and take their addresses.  This could produce
                   4810:        refs to non-low-parts, which copy_rtx_and_substitute can't handle.
                   4811: 
                   4812:        * c-typeck.c (build_modify_expr): If lhs is COND_EXPR,
                   4813:        make a COMPOUND_EXPR to ensure the rhs is computed before the branch.
                   4814: 
                   4815:        * Implement -pipe.
                   4816:        * gcc.c (do_spec_1): `|' is now a special delimiter
                   4817:        which goes in the argbuf.
                   4818:        When a newline is preceded by a `|', delete it if no -pipe.
                   4819:        Otherwise, don't execute yet, and keep scanning.
                   4820:        (do_spec): At end, if we have stuff with no newline, execute it.
                   4821:        (handle_braces): Implement %{|foo:...}.
                   4822:        (execute): If argbuf contains some `|'s, run several processes
                   4823:        and pipe them together.
                   4824:        (pexecute): new subroutine to make one of the processes.
                   4825:        (find_exec_file): new fn to search for program to execute.
                   4826:        (record_temp_file): new arg FAIL_ONLY.
                   4827:        (store_arg): 2nd arg == 3 means delete file on failure.
                   4828:        This is used for output files.
                   4829:        (delete_temp_files): delete certain files only if fail.
                   4830: 
                   4831:        * cccp.c (include_defaults): /usr/include before /usr/local/include.
                   4832: 
                   4833:        * recog.c (asm_noperands): 1-off in loop checking CLOBBERS
                   4834:        when no output operands and PARALLEL.
                   4835: 
                   4836:        * expmed.c (negate_rtx): Sign-extend the high bits rather than clear.
                   4837: 
                   4838:        * cse.c (fold_rtx): fold negation of real values.
                   4839:        (fold_cc0): fold comparisons on real values.
                   4840: 
                   4841:        * Makefile (install): Use $(INSTALL) for gcc.1 and files in USER_H.
                   4842: 
                   4843:        * Handle floating-point problems for cross-compilation.
                   4844: 
                   4845:        * real.h (CONST_DOUBLE_LOW, etc.): new macros to access CONST_DOUBLE.
                   4846:        * varasm.c (immed_double_const, decode_rtx_const): Use these.
                   4847:        ({force,clear}_const_double_mem): Likewise.
                   4848:        * output-*.c (output_move_double): Use these.
                   4849:        * output-m68k.c (standard_{68881,sun_fpa}_constant_p): Likewise.
                   4850:        * tm-*.h (PRINT_OPERAND): Use these.
                   4851:        * output-i386.c (print_operand): Use these.
                   4852:        * final.c (output_addr_const): Likewise.
                   4853:        * emit-rtl.c (gen_rtx): Delete special code for CONST_DOUBLE.
                   4854: 
                   4855:        * real.h (union real_extract): Portable type for storing real as ints.
                   4856:        * varasm.c (immed_double_const, decode_rtx_const): Use these.
                   4857: 
                   4858:        * varasm.c (immed_real_const_1, decode_rtx_const):
                   4859:        Don't assume REAL_VALUE_TYPE is 2 ints long.
                   4860:        * emit-rtl.c (init_emit_once): Likewise.
                   4861: 
                   4862:        * real.h (REAL_VALUE_TYPE): Define as `double' if not defined.
                   4863:        (REAL_IS_NOT_DOUBLE): Define this if default REAL_VALUE_TYPE not used.
                   4864:        (REAL_VALUES_EQUAL, REAL_VALUES_LESS): Define, if not already defined.
                   4865:        (REAL_VALUE_LDEXP, REAL_VALUE_ATOF): Likewise.
                   4866:        * tree.h (struct tree_real_cst): Use REAL_VALUE_TYPE for the value.
                   4867: 
                   4868:        * rtl.c (init_rtl): Increase length of CONST_DOUBLE if REAL_VALUE_TYPE
                   4869:        needs more space.  Change the rtx_format element to match.
                   4870:        * varasm.c (immed_real_const_1): 1st arg now has REAL_VALUE_TYPE.
                   4871:        (force_const_mem): Assume a CONST_DOUBLE contains REAL_VALUE_TYPE.
                   4872:        * emit-rtl.c (init_emit_once): Likewise.
                   4873:        And use REAL_VALUE_ATOF to get a floating zero.
                   4874:        * optabs.c (expand_float): Use REAL_VALUE_TYPE, REAL_VALUE_LDEXP.
                   4875:        * c-parse.y (yylex): Likewise, and use REAL_VALUE_ATOF.
                   4876:        * fold-const.c (split_tree): Don't accept REAL_CSTs.
                   4877:        (combine, fold_convert, fold): Use REAL_ARITHMETIC if defined;
                   4878:        else don't fold reals if they are not doubles.
                   4879:        * tree.c (build_real_from_int_cst): Likewise.
                   4880:        * print-tree.c (dump) [REAL_IS_NOT_DOUBLE]: output float value
                   4881:        in hex, since we don't know how to do it right.
                   4882: 
                   4883: Sat Dec 31 14:15:13 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4884: 
                   4885:        * optabs.c (init_optabs): Handle new macros {U,}MULSI3_LIBCALL,
                   4886:        DIVSI3_LIBCALL, MODSI3_LIBCALL.
                   4887:        * tm-sparc.h: Define {,U}{MUL,DIV,MOD}SI3 to call Sun's library direct.
                   4888: 
                   4889:        * tm-sun3-nfp.h, tm-sun3-fpa.h: New files.
                   4890: 
                   4891: Fri Dec 30 00:14:36 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4892: 
                   4893:        * cccp.c (main): Certain envvars specify a file to write deps info to.
                   4894: 
                   4895:        * toplev.c (compile_file): Warn about undefined fns declared static.
                   4896: 
                   4897:        * m68k.md (casesi_2 recognizer) [SGS] RTX_INTEGRATED_P test backwards.
                   4898:        * tm-3b1.h (ASM_OUTPUT_CASE_LABEL): Likewise.  Also missing `\'.
                   4899: 
                   4900:        * reload1.c (count_occurrences): New function.
                   4901:        (choose_reload_targets): Don't delete a reload if the same reg
                   4902:        is used elsewhere in the current insn.
                   4903:        (delete_output_reload): code split out from choose_reload_targets.
                   4904: 
                   4905:        * c-typeck.c (build_c_cast): Always put on some operator,
                   4906:        so the cast is never an lvalue for strict ANSI.
                   4907: 
                   4908:        * c-typeck.c (initializer_constant_valid_p): Don't depend on
                   4909:        distinction between NOP_EXPR and CONVERT_EXPR.
                   4910: 
                   4911:        * c-convert.c: Fns reordered; new comments.
                   4912: 
                   4913:        * fold-const.c (fold): If simplifying a NOP_EXPR within a BIT_AND_EXPR,
                   4914:        return a NOP_EXPR.
                   4915:        New var TYPE holds type of expr.
                   4916: 
                   4917:        * c-parse.y (expr_no_commas): Split off cast_expr and unary_expr,
                   4918:        to reject `sizeof (int) foo'.
                   4919: 
                   4920:        * toplev.c (main): Treat plain `-' as input filename.
                   4921: 
                   4922:        * final.c (final): If an insn's output routine returns 0,
                   4923:        it means to output the deleted compare insn immediately preceding.
                   4924: 
                   4925:        * m68k.md (branch insns): Use 0 as 3rd arg for OUTPUT_JUMP
                   4926:        rather than explicitly clearing the overflow flag.
                   4927: 
                   4928:        * tm-i386.h (OUTPUT_JUMP): Really use NO_OV; don't abort.
                   4929:        * i386.md (branch insns): Put real data (sometimes 0) in 3rd arg
                   4930:        of OUTPUT_JUMP.  0 means preceding test may not be deleted.
                   4931:        (lea pattern): Clear the cc's.
                   4932:        * output-i386.c (notice_update_cc): various arith insns set the cc's.
                   4933: 
                   4934: Thu Dec 29 13:22:01 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4935: 
                   4936:        * stmt.c (expand_decl_init): Do nothing for static decls.
                   4937: 
                   4938:        * reload.c (find_reloads_address{,_1}): Return 1 iff entire arg
                   4939:        was reloaded as a whole, else 0.
                   4940:        (find_reload): If find_reloads_address returns 1, don't let that MEM
                   4941:        satisfy a `>' or `<' constraint.
                   4942: 
                   4943:        * m68k.md (cmpmb): Delete special pattern, make cmpqi handle it.
                   4944:        The special pattern couldn't handle reloading the incremented register.
                   4945: 
                   4946:        * integrate.c (copy_rtx_and_substitute): Test BYTES_BIG_ENDIAN,
                   4947:        not BITS...
                   4948: 
                   4949:        * combine.c (subst): Consider big-endian correction
                   4950:        when simplifying (subreg (mem ...) ...).
                   4951: 
                   4952:        * reload.c (find_reloads): Don't crash if matching operands in `asm'
                   4953:        are both read or both write.
                   4954: 
                   4955:        * expr.c (emit_push_insn): Address for movstr must be XINNER, not X.
                   4956: 
                   4957:        * toplev.c (main): Typo parsing `-fno...'.
                   4958: 
                   4959: Wed Dec 28 13:07:21 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4960: 
                   4961:        * toplev.c (rest_of_compilation): `volatile' fns need jump_optimize
                   4962:        for warnings, as if -Wreturn-type.
                   4963:        * c-typeck.c (c_expand_return): Warn about `return' in a `volatile' fn.
                   4964:        * c-decl.c (finish_function): Warn if `volatile' fn can drop thru end.
                   4965: 
                   4966:        * cse.c (canon_reg): Handle nulls as subexpressions.
                   4967:        (fold_rtx, canon_hash, mention_regs, exp_equiv_p): Likewise.
                   4968:        * loop.c (invariant_p, replace_regs, replace_call_address, may_trap_p,
                   4969:        {basic,general}_induction_var): Likewise.
                   4970: 
                   4971:        * expr.c (expand_call): Handle `const' functions:
                   4972:        Local IS_CONST is 1 if function is const.
                   4973:        Attach REG_RETVAL and REG_LIBCALL notes around the call.
                   4974:        Copy fn address to register outside of those notes.
                   4975:        Likewise precompute all parms outside them.
                   4976: 
                   4977:        * expr.c (expand_call): If fn is volatile, emit barrier after the call.
                   4978: 
                   4979:        * c-decl.c (grokdeclarator): Allow function declared const or volatile.
                   4980: 
                   4981: Sat Dec 24 18:40:12 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4982: 
                   4983:        * integrate.c (function_cannot_inline_p): If STRUCT_VALUE_INCOMING
                   4984:        or STRUCT_VALUE is defined, can't inline functions returning BLKmode.
                   4985: 
                   4986: Fri Dec 23 13:26:26 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   4987: 
                   4988:        * expr.c (store_constructor): Compute array's size
                   4989:        with int_size_in_bytes.
                   4990: 
                   4991:        * varasm.c (assemble_variable): If shared data, go to data section
                   4992:        before outputting an uninitialized symbol.
                   4993: 
                   4994:        * tm-sequent.h (ASM_OUTPUT_ALIGN_CODE): Missing backslash.
                   4995:        (SHARED_SECTION_ASM_OP): Macro defined.
                   4996:        * tm-seq386.h (SHARED_SECTION_ASM_OP): Macro defined.
                   4997: 
                   4998:        * c-typeck.c (c_expand_asm_operands): Warn if output op is `const'.
                   4999: 
                   5000:        * Fix problem where a stmt expr in an initialization
                   5001:        refers to the variable it is initializing.
                   5002:        * stmt.c (expand_decl_init): New fn split out from `expand_decl'.
                   5003:        * c-decl.c (finish_decl): Call that.
                   5004:        Don't call expand_decl if already done.
                   5005:        (start_decl): Call expand_decl if type is complete already.
                   5006: 
                   5007:        * Makefile (install): Typo in ranlib command.
                   5008: 
                   5009: Thu Dec 22 15:57:12 1988  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)
                   5010: 
                   5011:        * tree.h (tree_identifier): New field.
                   5012:        (IDENTIFIER_ERROR_LOCUS): Accessor for it.
                   5013:        * c-parse.y (primary => IDENTIFIER):
                   5014:        Undeclared variable gets one err msg per function it appears in.
                   5015: 
                   5016:        * ns32k.md (andsi3): Delete extra brace.
                   5017: 
                   5018:        * alliant.md, xm-alliant.h, tm-alliant.h, output-alliant.c: New files.
                   5019: 
                   5020:        * combine.c (SUBST, SUBST_INT): Store new field `is_int'.
                   5021:        (copy_substitutions): Don't copy an int as an rtx.
                   5022: 
                   5023:        * Makefile (INSTALL): Install gcc.1 properly.
                   5024: 
                   5025:        * tm-ns32k.h (FUNCTION_PROLOGUE, ASM_OUTPUT_ALIGN_CODE):
                   5026:        Add missing backslashes.
                   5027: 
1.1.1.9   root     5028: See file OChangeLog.
1.1       root     5029: 
                   5030: Local Variables:
                   5031: mode: indented-text
                   5032: left-margin: 8
                   5033: fill-column: 76
                   5034: version-control: never
                   5035: End:

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