changelog.9

GUN开源阻止下的编译器GCC

	* rs6000.md (extendsfdf2): Undo 30 Nov 94 change.  Use float_extend
	instead of SUBREG and restore fmr instruction for differing FPRs.

Mon Feb 13 05:25:09 1995  Jason Merrill  <[e-mail]>

        * convert.c (convert_to_{pointer,real,integer,complex}):
	Handle references.

Mon Feb 13 08:14:10 1995  Richard Kenner  ([e-mail])

	* c-parse.in (ALIGN): Remove unused token.

	* loop.c (mark_loop_jump): Remove bogus assignments to LABEL_
	fields in default case.

Mon Feb 13 07:55:30 1995  Torbjorn Granlund  ([e-mail])

	* a29k.h (TARGET_MULTM): New #define.
	(TARGET_SWITCHES): Recognize "-mno-multm".
	* a29k.md (smulsi3_highpart, umulsi3_highpart, mulsidi3, umulsidi3):
	Make these conditional on TARGET_MULTM.

	* a29k.md (multm matcher): Delete.
	(multmu matcher): Delete.
	(mulsidi3 DEFINE_SPLIT): Generate RTL for smulsi3_highpart instead of
	for deleted pattern.  Fix typo in preparation code.
	(umulsidi3 DEFINE_SPLIT): Analogous change.

Mon Feb 13 07:09:02 1995  Peter Flass  ([e-mail])

	* i370/mvs.h (ASM_OUTPUT_ASCII): Don't duplicate first char.

Mon Feb 13 06:51:07 1995  Samuel A. Figueroa  ([e-mail])

	* i386/os2.h (OBJECT_SUFFIX): New macro.
	(LIB_SPEC, STARTFILE_SPEC): Adjust to include better set of libs.

	* i386/xm-os2.h (DIR_SEPARATOR): Define if not already.
	(strcasecmp): New definition.

	* toplev.c (main): Look at DIR_SEPARATOR for finding last component.
	* cccp.c (do_include, is_system_include, open_include_file):
	Handle DIR_SEPARATOR.

Sun Feb 12 20:20:28 1995  Brendan Kehoe  ([e-mail])

        * config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME): Check to make
        sure DECL is non-null before trying to reference it.
        * config/mips/elf64.h (ASM_OUTPUT_SECTION_NAME): Likewise.

Sun Feb 12 19:55:45 1995  Roland McGrath  <[e-mail]>

	* calls.c (expand_call): Add missing paren in last change.

Sat Feb 11 18:09:27 1995  Jim Wilson  <[e-mail]>

	* libgcc2.c (L_fixunsxfsi, L_fixunsdfsi, L_fixunssfsi): Undef
	normal types before including limits.h.

	* calls.c (expand_call): When setting n_named_args, depend on new
	macro STRICT_ARGUMENT_NAMING.

	* expr.c (expand_builtin, case BUILT_IN_NEXT_ARG): Don't warn when
	no argument if this is a varargs routine.

Sat Feb 11 16:08:13 1995  Samuel A. Figueroa  ([e-mail])

	* gcc.c (specs): Use %O instead of "o" for object file suffix.
	(do_spec_1, case 'O'): New option.

Sat Feb 11 14:58:19 1995  Philippe De Muyter ([e-mail])

	* m68k/mot3300.h (RETURN_IN_MEMORY): Fix error in last change.

Sat Feb 11 13:09:28 1995  Richard Kenner  ([e-mail])

	* cexp.y (%union): Delete VOIDVAL and SVAL; unused.

	* c-decl.c (grokdeclarator): Use NAME, not IDENTIFIER_POINTER
	of DECLARATOR for error messages; DECLARATOR might be null.

	* expmed.c (expand_divmod): Always call expand_twoval_binop with
	psuedos as targets.

Fri Feb 10 14:55:05 1995  Richard Kenner  ([e-mail])

	* caller-save.c: Replace MAX_UNITS_PER_WORD with MIN_UNITS_PER_WORD.
	* h8300.h, mips.h, rs6000.h, sparc.h: Likewise.

	* alpha.c (direct_return): Can't if have outgoing args.

	* expr.c (store_constructor, ARRAY_TYPE): Use code for
	non-integer INDEX for non-integer ELTTYPE size.
	Allow INDEX to be zero in code and divide size by BITS_PER_UNIT.

	* fold-const.c (fold): Don't modify tree with newly-allocated
	nodes; instead make new tree in those cases.

Wed Feb  8 15:13:49 1995  Doug Evans  <[e-mail]>

	* sparc/sparc.c (v9_regcmp_p): New function.
	(v9_regcmp_op): Call it.
	* sparc/sparc.md (movsicc): New pattern.
	(movdicc, movsfcc, movdfcc, movtfcc): Likewise.

	* sparc/sparc.c (sparc64_initialize_trampoline): Use gen_flush
	instead of knowing what pattern looks like.

	* sparc/sparc.md (nonlocal_goto): Use Pmode instead of SImode.

Wed Feb  8 10:05:11 1995  David J. MacKenzie  <[e-mail]>

	* config.sub: Add a blank in the #! line for 4.2BSD, Dynix, etc.

Wed Feb  8 02:52:21 1995  Jeffrey A. Law  <[e-mail]>

	* pa.md (call, call_value): Emit save of the PIC register
	with "emit_insn" before emitting the call insn itself.

Tue Feb  7 15:19:40 1995  Jim Wilson  <[e-mail]>

	* sh.c (prepare_scc_operands, from_compare): Force constant 0 into
	register for unsigned comparisons.

	* sh.c: Correct errors in comments.
	(calc_live_regs, expand_acall): Delete TARGET_SMALLCALL support.
	(need_slot): Add comment.  Delete test of INSN_ANNULLED_BRANCH_P.
	(print_operand_address): Delete '*', '^', '!' support.
	(synth_constant): Call zero_extend* instead of and*.  Call ashlsi3_k
	instead of ashlsi3_n.
	(prepare_scc_operands): Abort for NE case.
	(output_move_double, output_far_jump, output_branch): Delete commented
	out code.  Don't output assembler comments.
	(gen_ashift): Don't call addsi3.
	(fixit): Delete redundant test for QImode constants.
	(hi_const): Delete TARGET_SHORTADDR support.
	(find_barrier): Don't put constant pool between mova and its label.
	(add_function, seen_function, bsr_operand, mac_operand,
	fake_shift): Delete.
	(sh_expand_prologue, expand_acall): Delete TARGET_BSR support.
	(general_movsrc_operand): Don't reject non-I CONST_INT.
	* sh.h: Correct errors in comments.
	(CONDITIONAL_REGISTER_USAGE): Delete TARGET_NOSAVE support.
	(TARGET_MAC, TARGET_TRYR0, TARGET_NOSAVE, TARGET_SMALLCALL,
	TARGET_PARANOID, TARGET_RETR2, TARGET_SHORTADDR, TARGET_BSR): Delete.
	(TARGET_SWITCHES): Delete above options.
	(OVERRIDE_OPTIONS): Delete TARGET_BSR support.
	(FUNCTION_BOUNDARY): Use 32 bit alignment when not TARGET_SMALLCODE.
	(FIRST_RET_REG): Delete TARGET_RETR2 support.
	(MODE_DISP_OK_[21]): Delete TARGET_TRYR0 support.
	(EXTRA_CONSTRAINT_U): Delete.
	(CONST_COSTS): For logical operations, give L constants cost 1.
	(PRINT_OPERAND_PUNCT_VALID_P): Delete '*', '^', '!'.
	* sh.md: Correct errors in comments.  Delete all assembler comments.
	Delete commented out patterns.  Delete all peepholes but two.
	Delete all define_splits but one.  Delete all `combiner' patterns.
	(mpy): Correct multiply latencies.
	(needs_delay_slot, hit_stack, interrupt_function, in_delay_slot,
	define_delay): Correct and/or simplify all reorg related definitions.
	(addsi3_real): Delete.
	(addsi3): Use arith_operand for argument 1.
	(mulhisi3): Use arith_reg_operand not mac_operand.
	(and_ffff, and_ff): Delete.
	(andsi3): Handle constant 255 specially.
	(rot*): Correct and/or simplify all rotate patterns.
	(ashlsi3_k): Delete clobber of T bit.  Output add for 1 bit shift.
	(ashlsi3_n, lshrsi3_n): Delete use of fake_shift.
	(negc): Correct pattern by adding set of T bit.
	(extend*): Delete 'u' and 'U' constraint cases.
	(pop): Separate 'l' and 'x' constraint cases.
	(movsi-1): Better code for move to T bit case.
	(bsr, bsr_value, mac): Delete.

Tue Feb  7 14:23:52 1995  Doug Evans  <[e-mail]>

	* sparc/sparc.md (*): Give names to all anonymous patterns.

Mon Feb  6 23:41:09 1995  Stephen L Moshier  <[e-mail]>

	* sparc/sysv4.h (ASM_OUTPUT_FLOAT, ASM_OUTPUT_DOUBLE): Remove
	  tests for host == target format and endianness.

Mon Feb  6 16:52:38 1995  Torbjorn Granlund  ([e-mail])

	* i386.h (RTX_COSTS): Rewrite.

	* m68k/lb1sf68.asm (__udivsi3, __divsi3, __umodsi3, __modsi3):
	Rewrite to actually work for more than a few small operands,
	and to be reasonably small.
	(__mulsi3): Eliminate usage of link register (i.e. a6).
	(shift patterns): Delete.
	(__umulsi3): Delete.
	* t-m68kbare (LIB1ASMFUNCS): Remove _umulsi3.
	* t-vxworks68: Likewise.

Mon Feb  6 15:22:39 1995  Jim Wilson  <[e-mail]>

	* ginclude/va-i960.h (va_start): Add __builtin_next_arg call.

	* sh/sh.c (sh_function_arg): Don't reject unaligned structures.
	(sh_function_arg_partial_nregs): Likewise.

	* sparc/sparc.md (movsf-1, movdf-1, movtf-1): Use 'F' not 'E'.

	* sparc/sol2.h (STARTFILE_SPEC): Delete explicit /usr/ccs/lib/
	pathnames.

	* reload1.c (alter_reg): New variable stack_slot.  Apply anti
	BYTES_BIG_ENDIAN correction to stack slot address stored in
	spill_stack_slot.

	* jump.c (jump_optimize): When searching for a LOOP_END note to move,
	stop if we find a LOOP_BEG note first.

Mon Feb  6 15:03:35 1995  Doug Evans  <[e-mail]>

	* i386/sysv3.h (DBX_DEBUGGING_INFO): Define.
	(PREFERRED_DEBUGGING_TYPE): Define.

Mon Feb  6 11:56:14 1995  Jeffrey A. Law  <[e-mail]>

	* pa.md: Replace "misc" attribute with "multi" in recentlyadded
	soft-float code.

	* pa-osf.h (TARGET_DEFAULT): Protect definition.

Mon Feb  6 11:52:25 1995  Ian Lance Taylor  <[e-mail]>

	* fixincludes: When changing <assert.h> to include <stdio.h> or
	<stdlib.h>, make it include them only for C++.

Sun Feb  5 21:39:41 1995  Torbjorn Granlund  <[e-mail]>

	* pa.c (globally): Use GEN_INT.
	(emit_move_sequence): Use expand_inc instead of plus_constant
	(generates less rtl).
	* pa.md (globally): Use GEN_INT.

	* pa.h (PREDICATE_CODES): Fix many errors.  Enable.

	* m68k.h (RTX_COSTS): Add special cases for a plain 68000.

	* expmed.c (mul_cost, div_cost): New variables.
	(mul_widen_cost, mul_highpart_cost): New variables.
	(init_expmed): Init new variables.
	(expand_mult_highpart): New argument, MAX_COST.
	Use new argument in several places.  Simplify code that tries
	widening multiply variants.
	(expand_divmod): New variables MAX_COST, EXTRA_COST.
	Initialize MAX_COST dependent on REM_FLAG.
	Calculate and pass cost in all calls of expand_mult_highpart.

Sat Feb  4 13:19:29 1995  Jim Wilson  <[e-mail]>

	* mips/abi64.h, mips/cross64.h, mips/iris6.h: New files.
	* mips/iris5.h (TARGET_DEFAULT): Add #ifndef/#endif around define.
	* mips/mips.c (mips_isa_string): Add mips4 to comment.
	(large_int): Delete code for handling 64 bit constants.
	(mips_const_double_ok): For irix6, reject all floating point constants.
	(mips_move_2words): Use dli not li for 64 bit constants.
	Use dla not la for 64 bit addresses.
	(output_block_move): Likewise.
	(function_arg): Add support for 64bit ABI.
	(override_options): Add support for mips4 and R8000.
	(print_operand): Handle new modifiers 'B', 'b', 'T', 't'.
	Make 'X' case work for 64 bit host.
	(mips_output_filename): Use ASM_OUTPUT_FILENAME.
	(mips_asm_file_start): Go to text section for 64bit ABI.
	(compure_frame_size, save_restore_insns, function_prologue,
	mips_expand_prologue, function_epilogue): Add support for 64 bit ABI.
	(type_dependent_reg, mips_function_value): New functions.
	* mips/mips.h (__PTR_TO_INT, __INT_TO_PTR): Delete.
	(enum processor_type): Add R8000.
	(mips_isa_string, CC1_SPEC): Add mips4 to comment.
	(CONDITIONAL_REGISTER_USAGE): Use SUBTARGET_CONDITIONAL_REGISTER_USAGE.
	(SUBTARGET_CONDITIONAL_REGISTER_USAGE): New macro.
	(ASM_SPEC, LINK_SPEC, CPP_SPEC): Add mips4 support.
	(MIPS_TEMP[12]_REGNUM): Change to avoid clobbering 64bit abi
	parameter registers.
	(SMALL_INT, SMALL_INT_UNSIGNED, CONST_OK_FOR_LETTER_P): Fix for 64
	bit host.
	(ABI_64BIT): New macro.
	(REG_PARM_STACK_SPACE): Use UNITS_PER_WORD not 4.
	(GO_IF_LEGITIMATE_ADDRESS, CONSTANT_ADDRESS_P, LEGITIMATE_CONSTANT,
	LEGITIMIZE_ADDRESS): Don't allow CONST addresses for Irix6.
	(ASM_OUTPUT_FILENAME): New macro.
	(ASM_OUTPUT_ADDR_DIFF_ELT): Add 64 bit ABI support.
	* mips/mips.md (type attribute): Add fmadd.
	(cpu attribute): Add r8000.
	(umaddi+1, ..., umadddi+8): Add pattern for multiply accumulate.
	(movdi): Legitimize addresses, just like movsi does.
	(loadgp): New pattern for 64 bit ABI.
	(shift patterns): Use INTVAL instead of XINT for constants.
	(jump, tablejump_interal[12]): Add 64 bit ABI support.
	(movsicc-8, ..., movsicc): Add patterns for conditional moves.
	* mips/t-cross64, mips/t-iris6, mips/x-iris6, mips/xm-iris6.h:
	New files.
	* configure: Add irix6 and irix5cross64 configurations.
	* ginclude/va-mips.h (*): Change __mips==3 to __mips>=3.
	(sgidefs.h): Include if _MIPS_SIM is defined.
	(va_start): Add support for 64 bit ABI.

Sat Feb  4 10:31:37 1995  Doug Evans  <[e-mail]>

	* dbxout.c (dbxout_source_file): Don't switch to text section if
	in function with section attribute.  Print Ltext label to correct
	file (important on mips).

Fri Feb  3 14:43:23 1995  Michael Meissner  ([e-mail])

	* rs6000/rs6000.md (call, call_value): If building for System V.4
	or eABI, function pointers are just pointers, not pointers to a
	three word area.

Thu Feb  2 15:50:26 1995  Ian Lance Taylor  <[e-mail]>

	* fixincludes: When fixing bool in <curses.h>, permit whitespace
	before the semicolon.  Needed on AIX 3.2.5.

Thu Feb  2 12:06:12 1995  David Edelsohn  <[e-mail]>

	* rs6000.md (smax:SF define_split): Change match_operand typo to
	match_dup.
	(smin:SF define_split): Likewise.
	(smax:DF define_split): Likewise.
	(smin:DF define_split): Likewise.

Wed Feb  1 16:50:18 1995  Michael Meissner  ([e-mail])

	* config.sub: Add support for powerpc-*-{elf,svr4,eabi}.