changelog.10

GCC编译器源代码

	(TARGET_LONG_LOAD_STORE): Define.
	* pa.md (symbolic high part): Handle TARGET_LONG_LOAD_STORE.

Thu Feb 29 11:39:30 1996  Stan Cox  <[e-mail]>

	* i386.md (cmpxf*): XF compare cannot have mem operands.
	(casesi expand): Put (minus:SI..) into subsi3 format.
	* i386.c (i386_return_pops_args): Cleanup extra argument
	used as address of a returned structure.

Wed Feb 28 22:24:28 1996  Doug Evans  <[e-mail]>

	* varasm.c (enum in_section): Define in_bss if BSS_SECTION_ASM_OP
	is defined.
	(bss_section,asm_output_bss,asm_output_aligned_bss): New functions.
	(assemble_variable): Delete redundant test for too large an object.
	Rewrite test for uninitialized variables.  Use new macros
	ASM_OUTPUT{,_ALIGNED}_BSS if defined to output global uninitialized
	but not common variables.
	* bytecode.h (BC_OUTPUT_BSS): Define.
	* lynx.h (EXTRA_SECTIONS): Delete in_bss.
	(EXTRA_SECTION_FUNCTIONS): Delete BSS_SECTION_FUNCTION.
	* svr3.h (EXTRA_SECTIONS): Likewise.
	(BSS_SECTION_FUNCTION): Delete.
	* convex.h (EXTRA_SECTIONS,EXTRA_SECTIONS_FUNCTIONS): Delete.
	* dsp16xx.h (EXTRA_SECTIONS): Delete in_bss.
	(EXTRA_SECTION_FUNCTIONS): Delete bss_section.
	* gmicro.h (EXTRA_SECTIONS,EXTRA_SECTIONS_FUNCTIONS): Delete.
	* i386/aix386ng.h (EXTRA_SECTION_FUNCTIONS): Delete
	BSS_SECTION_FUNCTION.
	* i386/att.h (BSS_SECTION_FUNCTION): Delete.
	* i386/sco5.h (EXTRA_SECTIONS): Delete in_bss.
	(EXTRA_SECTION_FUNCTIONS): Delete BSS_SECTION_FUNCTION.
	(BSS_SECTION_FUNCTION): Delete.
	* i386/seq-sysv3.h (BSS_SECTION_FUNCTION): Delete.
	* i386/svr3gas.h (EXTRA_SECTIONS): Delete in_bss.
	(EXTRA_SECTION_FUNCTIONS): Delete BSS_SECTION_FUNCTION.
	(BSS_SECTION_FUNCTION): Delete.
	* i860/paragon.h (EXTRA_SECTIONS,EXTRA_SECTIONS_FUNCTIONS): Undef.
	* m68k/crds.h (EXTRA_SECTIONS,EXTRA_SECTIONS_FUNCTIONS): Delete.
	(BSS_SECTION_ASM_OP): Define.
	* m68k/m68k.h (BC_OUTPUT_BSS): Define.
	* mips/iris6.h (EXTRA_SECTIONS): Delete in_bss.
	* pa.h (EXTRA_SECTIONS): Delete in_bss.
	(EXTRA_SECTION_FUNCTIONS): Delete bss_section.
	* sparc/litecoff.h (EXTRA_SECTIONS): Delete in_bss.

Wed Feb 28 14:12:25 1996  Jim Wilson  <[e-mail]>

	* sh.h (FUNCTION_VALUE_REGNO_P, FUNCTION_ARG_REGNO_P): Include FP
	registers only when TARGET_SH3E.
	(PASS_IN_REG_P): Exclude BLKmode only when ! TARGET_SH3E.

Wed Feb 28 12:03:26 1996  Michael Meissner  <[e-mail]>

	* rs6000.c (rs6000_trampoline_{template,size}): Change Windows NT
	trampoline template so it doesn't require making stack executable.
	Add support for 64 bit systems.
	(rs6000_initialize_trampoline): Ditto.

Tue Feb 27 16:42:00 1996  David Edelsohn  <[e-mail]>

	* rs6000.c (print_operand): New code 'H'.
	* rs6000.md (insv, extzv): Add DImode patterns.  Use 'h'
	consistently for masking SImode shifts.
	(rotldi3, ashldi3, lshrdi3, ashrdi3): Use 'H'.
	(movsf split): Generate CONST_INT instead of SUBREG.

Tue Feb 27 15:02:17 1996  Doug Evans  <[e-mail]>

	* sh.h (HANDLE_PRAGMA): Delete `return'.

Tue Feb 27 08:18:12 1996  Richard Earnshaw ([e-mail])

	* arm.c (aof_text_section): Remove pseudo read-only hack.  Doesn't
	take a parameter any more.
	* arm/aof.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Remove
	readonly data sections.
	(READONLYDATA_SECTION, READONLY_DATA_SECTION): Delete.

	* arm.h (enum arm_cond_code): New enum.
	(ARM_INVERSE_CONDITION_CODE): Moved here from arm.c.
	(SELECT_CC_MODE): Call arm_select_cc_mode to do the work.
	(PREDICATE_CODES): Add dominant_cc_register; delete
	reversible_cc_register.
	* arm.c (arm_current_cc): Now an enum.
	(ARM_INVERSE_CONDITION_CODE): Moved to arm.h
	(revsersible_cc_register): Delete.
	(dominant_cc_register): New function.
	(select_dominance_cc_mode): New function.
	(arm_select_cc_mode): New function.
	(output_return_instruction): New parameter REVERSE, used to
	reverse the condition of a conditional return.  All callers
	changed.
	(arm_print_operand case 'D'): Only suppress condition printing
	if the operand is a NULL pointer.
	(get_arm_condition_code): Now a static function returning
	enum arm_cond_code.  Handle dominance expressions.  Return enum
	values rather than integers.
	* arm.md (*addsi3_compare0_scratch): New insn.
	(*movsi_compare0, *cmpsi_insn, *cmpsi_shiftsi): Make sure the
	compare has mode CC.
	(cmp{si,sf,df,xf} expands): Just provide sufficient information
	to allow the parameters to be matched properly.
	(*cmpsi_negsi): Delete (of dubious validity).
	(*cmpsi_shiftsi_swp): New pattern.
	(*condbranch_reversed): No longer needs to check REVERSIBLE_CC_MODE.
	(mov{si,sf,df}cc, *mov{si,sf,df}{,_hard,_soft}_insn): The mode of the
	IF_THEN_ELSE must be appropriate to the target (not void).
	(*and_scc): Match cc_register, not reversible_cc_register.
	(*ior_compare_compare): Delete.
	(split for ior_compare_compare + condjump): Delete.
	(*impossible_cond_compare): Delete.
	(*condition_compare_ior): Delete.
	(*cond_move): Mode for the IF_THEN_ELSE must be SImode.
	(*and_scc_scc): Delete.
	(split for and_scc_scc + condjump): Delete.
	(*impossible_cond_branch_and): Delete.
	(*cmp_ite0, *cmp_ite1): New patterns.
	(if_compare_not): Should be an anonymous pattern.
	(Peephole for move and compare): Compare mode must be mode CCmode.
	(Split pattern for comparing shifted reg then branch): Delete.
	(*loadqi_compare): Delete, replaced with a split pattern to do
	the same thing.
	(*cond_move_not): Match cc_register, not reversible_cc_register.

	* arm.c ({load,store}_multiple_sequence): New functions.
	(emit_{ldm,stm}_seq): New functions.
	* arm.md (load/store multiple peepholes): Rewrite using the above
	functions.
	(all patterns taking immediate_operand): If the code later assumes
	this is a CONST_INT, then match const_int_operand instead.

Mon Feb 26 17:26:13 1996  Doug Evans  <[e-mail]>

	* sparc.md: Add sparclet scheduling parameters.
	(compare define_insn's): Move closer to compare define_expand's.
	(32 bit multiply patterns): Use for TARGET_SPARCLET.
	(*smacsi,*smacdi,*umacdi): Multiply/accumulate patterns for the
	sparclet.

Sat Feb 24 19:13:29 1996  David Edelsohn  <[e-mail]>

	* rs6000.md (movsf split): Fix typo in last patch.

Sat Feb 24 10:02:55 1996  Michael Meissner  <[e-mail]>

	* toplev.c (fatal_insn): Flush stdout/stderr.

Sat Feb 24 02:03:28 1996  Jeffrey A. Law  <[e-mail]>

	* pa.md (abssi2): Rework to avoid matching constraints.

Fri Feb 23 11:21:43 1996  Jeffrey A. Law  <[e-mail]>

	* pa.c (override_options): Warn if both PIC code generation and
	profiling are requested.

Fri Feb 23 08:47:38 1996  Richard Kenner  (kenner at vlsi1)

	* expr.c (expand_builtin, case BUILT_IN_SETJMP): Set CONST_CALL_P
	on NOTE_INSN_SETJMP instead of emitting USE insns for call-saved regs.
	* reload1.c (reload): For special CONST_CALL_P NOTE_INSN_SETJMP,
	mark all call-saved regs as used.
	* sched.c (sched_analyze): Record NOTE_INSN_SETJMP if no
	CALL_INSN as prev; preserve CONST_CALL_P bit.
	(reemit_notes): Restore CONST_CALL_P.

Thu Feb 22 17:45:12 1996  Doug Evans  <[e-mail]>

	* configure (sparclet-*-aout*): Set extra_headers.
	* ginclude/inl-sparc.h: New file.

Wed Feb 21 20:39:53 1996  Doug Evans  <[e-mail]>

	* configure (sparc64-*-solaris2*): Merge with sparc-*-solaris2*.
	* sparc.h (enum processor_type): Declare.
	(sparc_cpu_attr): Define.
	(TARGET_OPTIONS): Add -mtune=.
	(sparc_select): Declare.
	(sparc_cpu_string): Delete.
	(FIRST_PSEUDO_REGISTER): Set to 100.
	({FIXED,CALL_USED}_REGISTERS): Merge !v9/v9 cases.
	(CONDITIONAL_REGISTER_USAGE): Mark %g5 as fixed if !v9.
	Mark %g1 as fixed if v9.  Fix v9-only regs if !v9.
	Mark fp{16..47} as call-saved if v9.
	(enum reg_class): Merge !v9/v9 cases.
	(REG_CLASS_NAMES,REG_CLASS_CONTENTS,REGNO_REG_CLASS): Likewise.
	(REG_ALLOC_ORDER,REG_LEAF_ALLOC_ORDER,LEAF_REGISTERS): Likewise.
	(FP_REG_CLASS_P,SPARC_REGISTER_NAMES): Likewise.
	(REG_CLASS_FROM_LETTER): Test TARGET_V9 at runtime.
	* sparc.c (sparc_cpu_string): Delete.
	(sparc_select): New global.
	(sparc_override_options): Handle -mtune=xxx.
	* sparc.md (cpu attr): Add sparc{lite,let} implementations.
	* sparc/sp64-sol2.h: Deleted.

	* arm.md (consttable_end): Delete call to text_section.
	(align_4): Delete call to readonly_data_section.

Wed Feb 21 14:29:06 1996  Ian Lance Taylor  <[e-mail]>

        * cplus-dem.c (demangle_template): Initialize is_bool.  Correctly
        handle 0 as a pointer value parameter.

Wed Feb 21 14:13:29 1996  Jason Merrill  <[e-mail]>

	* tree.c (decl_function_context): Do decl_function_context right for
	function-local classes.

Wed Feb 21 12:42:52 1996  Jeffrey A. Law  <[e-mail]>

	* c-typeck.c (initializer_constant_valid_p): Don't dereference
	a null pointer on partial structure initialization.

Wed Feb 21 11:49:58 1996  David Edelsohn  <[e-mail]>

	* rs6000.h (ASM_OUTPUT_EXTERNAL): Append section info
	even when verbatim symbol prefix '*' present.
	* rs6000/aix3newas.h (ASM_OUTPUT_EXTERNAL): Same.
	* rs6000/aix41.h (ASM_OUTPUT_EXTERNAL): Same.
	* rs6000/powerpc.h (ASM_OUTPUT_EXTERNAL): Same.
	* rs6000/win-nt.h (ASM_OUTPUT_EXTERNAL): Same.

Wed Feb 21 03:55:32 1996  Paul Eggert  <[e-mail]>

	* cccp.c (validate_else): Don't loop given `#endif /'.
	Handle multiple adjacent backslash-newlines correctly.
	Accept a new parameter LIMIT to specify end of input;
	this prevents confusion when the input contains '\0' characters.
	(collect_expansion): Fix off-by-1 error when searching for `*/'
	at end of a comment used for traditional token concatenation.
	(macarg1): Fix off-by-1 error when skipping past `*/'
	at end of comment.

Tue Feb 20 16:12:31 1996  Doug Evans  <[e-mail]>

	* hard-reg-set.h (twice unrolled GO_IF_HARD_REG_EQUAL): Add missing \.

Tue Feb 20 14:21:16 1996  Jeffrey A. Law  <[e-mail]>

	* pa.h (DBX_CONTIN_LENGTH): Define to 4000 characters.

	* pa.c (hppa_expand_epilogue): Always emit a blockage insn
	before cutting back the stack.

Mon Feb 19 19:42:15 1996  Brendan Kehoe  <[e-mail]>

	* sparc.h (TARGET_SWITCHES): Add -m{,no-}impure-text.
	(MASK_IMPURE_TEXT, TARGET_IMPURE_TEXT): Define.
	(LINK_SPEC): Only add `-assert pure-text' if -mimpure-text wasn't used.

Mon Feb 19 19:20:15 1996  Doug Evans  <[e-mail]>

	* configure (sparc-aout): sparc-aout.h renamed to aout.h.
	(sparclet-aout): Likewise.
	(sparclite-*-aout*): Renamed from sparclite-*-*.
	Don't set use_collect2.
	(target_cpu_default): Set to TARGET_CPU_<cpu> for sparc.

	* sparc.h (TARGET_CPU_sparc{,let,lite,64}): Define.
	({CPP,ASM}_DEFAULT_SPEC): Set from TARGET_CPU_foo.
	(SPARC_ARCH64 CPP_PREDEFINES): Define __arch64__.
	(CPP_SPEC): Add %(cpp_cpu).
	(CPP_CPU_SPEC): Define.
	(CC1_SPEC): Convert -m<cpu> to -mcpu=<cpu>.
	(ASM_SPEC): Add %(asm_cpu).
	(ASM_CPU_SPEC): Define.
	(EXTRA_SPECS,SUBTARGET_EXTRA_SPECS): Define.
	(OVERRIDE_OPTIONS): Call SUBTARGET_OVERRIDE_OPTIONS after
	sparc_override_options.
	({MASK,TARGET}_SUPERSPARC): Delete.
	({MASK,TARGET}_SPARCLET): Define.
	(MASK_ISA): Renamed from MASK_CPUS.
	(TARGET_SWITCHES): Delete no-{v8,sparclite}.
	(sparc_cpu,sparc_cpu_string): Declare.
	({SUB,}TARGET_OPTIONS): Define.
	(FIXED_REGISTERS): Add definitions for sparc64 in 32 bit mode.
	(CONDITIONAL_REGISTER_USAGE): Don't set fixed_regs[234] if sparc64.
	Don't set call_used_regs[48..80] for sparc64 in 32 bit mode.
	Don't clobber fixed_regs[234] if -ffixed- was passed.
	(ADJUST_COST): Change test for supersparc.
	* sparc.c (sparc_cpu_string,sparc_cpu): New globals.
	(sparc_override_options): Set ISA and CPU from sparc_cpu_string.
	Delete tests for v9 only switches if not v9.
	Error if -mcpu=v9 and v9 support not compiled in.
	* sparc/sol2.h (CPP_SPEC): Use %(cpp_cpu).
	(ASM_SPEC): Likewise.
	(ASM_{DEFAULT,CPU}_SPEC): Use Solaris syntax for sparc64.
	* sparc/sysv4.h (ASM_SPEC): Add %(asm_cpu).
	* sparc/t-sparcbare (MULTILIB_*): -mv8 renamed to -mcpu=v8.
	* sparc/t-sparclite (MULTILIB_*): Delete msoft-float and mno-flat,
	they're the defaults.  Add -mcpu=f934 as synonym for -mfpu.
	* va-sparc.h (__arch64__): Renamed from __sparc_v9__.

	* sparc/lite.h: #include aoutos.h.
	(TARGET_DEFAULT): Use MASK_FOO values.
	* sparc/sp64-aout.h: #include aoutos.h.
	(TARGET_DEFAULT): Add MASK_APP_REGS.
	(JUMP_TABLES_IN_TEXT_SECTION,READONLY_DATA_SECTION): Delete.
	* sparc/sp64-elf.h (TARGET_DEFAULT): Add MASK_APP_REGS.
 	(CPP_PREDEFINES): Define __arch64__.
	* sparc/sp64-sol2.h (TARGET_DEFAULT, SUBTARGET_SWITCHES): Delete.
	(ASM_SPEC): Delete.

	* sparc.h ({MASK,TARGET}_FRW): Delete.
	(FRAME_POINTER_REQUIRED,INITIAL_FRAME_POINTER_OFFSET,
	BASE_{INCOMING_ARG,OUTGOING_VALUE}_REG,INCOMING_REGNO,OUTGOING_REGNO,
	FUNCTION_{PROLOGUE,EPILOGUE},DELAY_SLOTS_FOR_EPILOGUE): TARGET_FRW
	renamed to TARGET_FLAT.

	* sparc.md (cpu attr): Add all cpu variants.
	(negtf2,negdf2,abstf2,absdf2): Use isa attr, not arch attr, in
	determining insn lengths.

	* sparc/aout.h: Renamed from sparc-aout.h.
	(CPP_PREDEFINES): Delete __GCC_NEW_VARARGS__.
	Add -Acpu(sparc) -Amachine(sparc).

Mon Feb 19 17:49:08 1996  David Edelsohn  <[e-mail]>

	* rs6000.md (movsf split): Use SUBREG, not operand_subword.
	(movdf split): operand_subword TARGET_32BIT and new split using
	SUBREG for TARGET_64BIT.
	* rs6000.c (easy_fp_constant): Rewrite to not use operand_subword.
	(input_operand): Remove final add_operand test made irrelevant by
	Dec. 8 change.
	(output_toc): Handle DImode values.

Mon Feb 19 13:38:00 1996  Lee Iverson  <[e-mail]>

	* i386/sol2.h (SWITCH_TAKES_ARG): Restore -R.
	* sparc/sol2.h (SWITCH_TAKES_ARG): Likewise.

Mon Feb 19 08:19:00 1996  Michael Meissner  <[e-mail]>