changelog.10

GCC编译器源代码

Sun Mar 31 05:10:10 1996  Richard Kenner  ([e-mail])

	* stor-layout.c (layout_decl): Don't make a bitfield an integral mode
	if the mode of the field type is not MODE_INT.

	* sched.c (schedule_block): CALL_INSNs don't affect fixed regs.
	* flow.c (propagate_block): CALL_INSNs don't kill fixed regs.

Sat Mar 30 03:32:48 1996  Torbjorn Granlund  <[e-mail]>

	* expmed.c (expand_divmod, case TRUNC_DIV_EXPR): Move some code
	to avoid shifting by a too large count.

Fri Mar 29 15:45:51 1996  Doug Evans  <[e-mail]>

	* configure (i[3456]86-*-sunos5*): Delete, config.sub converts
	sunos5 to solaris2.
	(sparc-*-sunos5*): Likewise.
	(sparc64-*-{solaris2*,sunos5*}): Delete.  Stick with sparc-*-solaris2*.

	* sparc.h (FUNCTION_PROFILER): Save/restore %g2 around mcount call.

Fri Mar 29 14:20:31 1996  Stan Cox  <[e-mail]>

	* i386.c (notice_update_cc): Clear cc_status if ref modified MEM.

Fri Mar 29 09:37:52 1996  Jeffrey A. Law  <[e-mail]>

	* calls.c (expand_call): Remove current_call_is_indirect nonsense.
	Add additional argument to INIT_CUMULATIVE_ARGS.
	(emit_library_call): Likewise.
	(emit_library_call_value): Likewise.
	* expr.c (expand_builtin): Likewise.
	* function.c (assign_parms): Likewise.
	* pa.h (hppa_args): New field "indirect".
	(INIT_CUMULATIVE_ARGS): Initialize "indirect" field.
	(FUNCTION_ARG): Check "indirect" field, rather than
	"current_call_is_indirect".
	* a29k.h (INIT_CUMULATIVE_ARGS):New arg, INDIRECT.
	* alpha.h (INIT_CUMULATIVE_ARGS): Likewise.
	* arm.h (INIT_CUMULATIVE_ARGS): Likewise.
	* clipper.h (INIT_CUMULATIVE_ARGS): Likewise.
	* convex.h (INIT_CUMULATIVE_ARGS): Likewise.
	* dsp16xx.h (INIT_CUMULATIVE_ARGS): Likewise.
	* elxsi.h (INIT_CUMULATIVE_ARGS): Likewise.
	* fx80.h (INIT_CUMULATIVE_ARGS): Likewise.
	* gmicro.h (INIT_CUMULATIVE_ARGS): Likewise.
	* h8300.h (INIT_CUMULATIVE_ARGS): Likewise.
	* i370/mvs.h (INIT_CUMULATIVE_ARGS): Likewise.
	* i386.h (INIT_CUMULATIVE_ARGS): Likewise.
	* i860.h (INIT_CUMULATIVE_ARGS): Likewise.
	* i960.h (INIT_CUMULATIVE_ARGS): Likewise.
	* m68k.h (INIT_CUMULATIVE_ARGS): Likewise.
	* m68k/mot3300.h (INIT_CUMULATIVE_ARGS): Likewise.
	* m88k.h (INIT_CUMULATIVE_ARGS): Likewise.
	* mips.h (INIT_CUMULATIVE_ARGS): Likewise.
	* ns32k.h (INIT_CUMULATIVE_ARGS): Likewise.
	* pdp11.h (INIT_CUMULATIVE_ARGS): Likewise.
	* pyr.h (INIT_CUMULATIVE_ARGS): Likewise.
	* romp.h (INIT_CUMULATIVE_ARGS): Likewise.
	* rs6000.h (INIT_CUMULATIVE_ARGS): Likewise.
	* sh.h (INIT_CUMULATIVE_ARGS): Likewise.
	* sparc.h (INIT_CUMULATIVE_ARGS): Likewise.
	* spur.h (INIT_CUMULATIVE_ARGS): Likewise.
	* tahoe.h (INIT_CUMULATIVE_ARGS): Likewise.
	* vax.h (INIT_CUMULATIVE_ARGS): Likewise.
	* we32k.h (INIT_CUMULATIVE_ARGS): Likewise.
	* mips.c (mips_expand_prologue): Add extra arg to
	INIT_CUMULATIVE_ARGS call.

Thu Mar 28 18:45:49 1996  Richard Kenner  <[e-mail]>

	* alpha.c (summarize_insn): Fix three "off-by-one" bugs in loop bounds.

Thu Mar 28 16:50:10 1996  Doug Evans  <[e-mail]>

	* ginclude/inl-sparc.h: Deleted.

Thu Mar 28 12:07:31 1996  Jeffrey A. Law  <[e-mail]>

	* va-h8300.h (va_arg): Don't assume sizeof (int) == 4.

	* pa.c (hppa_legitimize_address): Don't lose for
	(plus (plus (mult (A) (shadd_const)) (B)) (C)) if
	B + C isn't a valid address for indexing.
	(basereg_operand): Only accept base registers after
	cse has completed.  Don't accept the frame pointer if
	it's likely to be eliminated.
	* pa.md (unscaled indexing patterns): Add variants with
	basereg and index register reversed.
	(HImode and QImode loads): Add zero extended variants.

Wed Mar 27 07:45:27 1996  Richard Kenner  <[e-mail]>

	* expmed.c (negate_rtx): Fix typo in previous change.

Tue Mar 26 13:50:43 1996  Jim Wilson  <[e-mail]>

	* calls.c (expand_call): In convert_to_mode call, use word_mode
	not SImode.

Tue Mar 26 13:44:34 1996  Doug Evans  <[e-mail]>

	* configure: Delete unnecessary special handling of --with-cpu.

Tue Mar 26 10:41:57 1996  Jeffrey A. Law  <[e-mail]>

	* expr.c (emit_push_insn): When doing a partial push, emit
	a CLOBBER so that flow doesn't think the entire register
	is live.

Tue Mar 26 10:00:52 1996  Richard Kenner  <[e-mail]>

	* alpha.c (summarize_insn, default case): Properly use format_ptr.

Tue Mar 26 09:51:09 1996  Philippe De Muyter ([e-mail])

	* m68k.h (output_move_simode_const): New extern declaration.
	* m68k.c (output_move_simode_const): New function.
	(singlemove_string): Call it.
	* m68k.md (fullword move): Likewise.

Tue Mar 26 05:43:06 1996  Torbjorn Granlund  <[e-mail]>

	* vax.md (insv matcher): Call CC_STATUS_INIT.
	* vax.h (NOTICE_UPDATE_CC): Handle ZERO_EXTRACT destination.

Mon Mar 25 19:18:08 1996  Jason Merrill  <[e-mail]>

	* function.c (expand_function_start): Don't set up context_display
	unless current_function_needs_context.

Mon Mar 25 18:48:18 1996  Philippe De Muyter  <[e-mail]>

	* fold-const.c (fold, case BIT_IOR_EXPR): Recognize rotates
	with variable count.

Mon Mar 25 18:05:28 1996  Jim Wilson  <[e-mail]>

	* Makefile.in (libgcc1-test): Undo Feb 12 change.

Mon Mar 25 08:09:59 1996  Richard Kenner  ([e-mail])

	* objc/thread-single.c (objc_mutex_unlock): Properly declare thread_id.

Mon Mar 25 08:02:50 1996  Philippe De Muyter  <[e-mail]>

	* configure (m68k-motorola-sysv*): Fixed indentation.

Sun Mar 24 08:16:42 1996  Richard Kenner  ([e-mail])

	* expmed.c (negate_rtx): Don't try to negate a constant ourself;
	instead call simplify_unary_operation.

Sun Mar 24 07:29:06 1996  Richard Henderson  <[e-mail]>

	* gcc.c (process_command): Instead of hardcoding non-empty
	switches_need_spaces to turn on "o" and "L", make the string
	contain the switches that need the spaces.
	* m68k/ccur-GAS.h (SWITCHES_NEED_SPACES): Change definition
	correspondingly.

Sat Mar 23 18:34:44 1996  Harry Dolan  <[e-mail]>

	* i860/paragon.h (LIB_SPEC): Always output -lmach.

Sat Mar 23 18:25:39 1996  J"orn Rennecke ([e-mail])

	* c-typeck.c (set_init_index): Check for use outside an array
	initializer.

        * defaults.h (ASM_OUTPUT_ADDR_DIFF_ELT): Delete.
        * pdp11.h (ASM_OUTPUT_ADDR_DIFF_ELT): Don't define.

Sat Mar 23 15:55:35 1996  Doug Evans  <[e-mail]>

	* combine.c (make_extraction): In BITS_BIG_ENDIAN correction of POS,
	need to treat MEM and REG differently.

	* sparc.h (SPARC_SIMM{10,11,13}_P): Define.
	(SMALL_INT): Use SPARC_SIMM13_P.
	(CONST_OK_FOR_LETTER_P): Support new letters L,M.
	* sparc.c (arith11_operand): Use SPARC_SIMM11_P.
	(arith10_operand): Use SPARC_SIMM10_P.
	* sparc.md (*mov{qi,hi,si,di}_cc_sp64): Fix constraints.
	(*mov{qi,hi,si,di}_cc_reg_sp64): Likewise.

Sat Mar 23 07:47:19 1996  Andreas Schwab  <[e-mail]>

	* m68k/linux.h (TRAMPOLINE_TEMPLATE): Correct first instruction.
	* m68k/m68kv4.h (TRAMPOLINE_TEMPLATE): Likewise.

Sat Mar 23 07:06:55 1996  Richard Kenner  ([e-mail])

	* bc-emit.c (bc_emit_instruction): Add missing va_end call.

	* c-typeck.c (build_array_ref): Give error if subscripting a function.

Fri Mar 22 09:11:45 1996  Richard Kenner  ([e-mail])

	* local-alloc.c (optimize_reg_copy_1): Only update reg_live_length
	if it is non-negative.

Thu Mar 21 14:42:26 1996  Doug Evans  <[e-mail]>

	* sparc/splet.h (STARTFILE_SPEC,LINK_SPEC): Define.

Wed Mar 20 17:23:18 1996  Jim Wilson  <[e-mail]>

	* cse.c (note_mem_written): Delete obsolete code for handling
	(mem (scratch)).

	* mips.c (mips_expand_prologue): In initialization of fnargs, delete
	special treatment of METHOD_TYPE.

Wed Mar 20 17:07:45 1996  Doug Evans  <[e-mail]>

	* sparc/sol2.h (ASM_CPU_SPEC): Recognize -mcpu=v8plus, not v9.
	Fix typo in ultrasparc entry.
	* sparc.h (CPP_CPU_SPEC): Add v8plus entry.
	(ASM_CPU_SPEC): Likewise.

	* sparc.c (fcc_reg_operand): Ensure correct mode.
	(icc_or_fcc_reg_operand): Likewise.
	(gen_v9_scc): IF_THEN_ELSE must have a mode.
	(print_operand): New operand code `x' for all condition codes.
	New operand codes `c,d' for reversed conditional moves.
	* sparc.md (movqicc,movhicc): New named patterns.
	(movdicc): if_then_else must have a mode.
	(movsicc,movsfcc,movdfcc,movtfcc): Likewise.
	Change condition to TARGET_V9, not TARGET_ARCH64.
	Fail if DImode compare and ! TARGET_ARCH64.
	(conditional move matchers): Rewrite.

Wed Mar 20 16:12:29 1996  Stan Cox  <[e-mail]>

	* i386.h (HARD_REGNO_MODE_OK): Relax QImode constraint to
	avoid a reload problem.

Wed Mar 20 13:12:22 1996  Jeffrey A. Law  <[e-mail]>

	* pa.c (hppa_legitimize_address): Don't lose for x[n-const]
	when n-const will not be shifted.  Don't pessimize code for
	x[n-const] when const is small.

Wed Mar 20 11:42:32 1996  Markus Theissinger  <[e-mail]>

	* m68k/sun3.h (LIB_SPEC): Don't link /usr/lib/bb_link.o with `gcc -a'.
	(__bb_init_func): Deleted.
	(BLOCK_PROFILER_CODE): Don't set macro to nothing.

	* m68k/xm-sun3.h: New file.
	* configure (m68k-sun-sunos*): Use it.

	* xm-linux.h (HAVE_POPEN): New define.

Wed Mar 20 11:28:37 1996  Andreas Schwab  <[e-mail]>

	* m68k/linux.h (ASM_SPEC): Deleted.
	(STRUCT_VALUE_REGNUM): Redefine as register a0.
	(STATIC_CHAIN_REGNUM): Redefine as register a1.
	(TRAMPOLINE_TEMPLATE): Redefine to use the right register.

Wed Mar 20 08:04:34 1996  Richard Kenner  ([e-mail])

	* libgcc2.c (__dummy): New function.
	* Makefile.in (LIB2FUNCS): Add __dummy.
	* expr.c (expand_builtin, case BUILT_IN_SETJMP): Call "setjmp"
	pattern, if any.
	Call dummy function pointed to by static chain pointer.
	(expand_builtin, case BUILT_IN_LONJMP): Ignore second expression.
	Set address of __dummy into static chain pointer.
	Copy the label to return to into a pseudo earlier.

	* stupid.c (last_setjmp_suid, regs_crosses_setjmp): New variables.
	(stupid_life_analysis, stupid_mark_refs): Use them to track which
	regs are live over a setjmp; don't allocate such regs.

Tue Mar 19 22:02:07 1996  Jason Merrill  <[e-mail]>

	* cplus-dem.c (demangle_template): Fix for non-mangled pointer
	arguments.

Tue Mar 19 13:54:06 1996  Jeffrey A. Law  <[e-mail]>

	* pa.c (compute_frame_size): Update comments to reflect reality.
	(hppa_expand_prologue): Don't save registers which aren't
	used, even if it creates holes.  Partially undoes changes from
	early March.
	(hppa_expand_epilogue): Likewise.

Tue Mar 19 08:25:17 1996  J"orn Rennecke ([e-mail])

	* stmt.c (struct case_node): New member balance.
	(add_case_node): New function.
	(pushcase, pushcase_range): Use it.
	(case_tree2list): New function.
	(expand_end_case): Use it.

Tue Mar 19 07:44:22 1996  Stephen L Moshier  ([e-mail])

	* regstack.c (move_for_stack_reg): Avoid stack overflow while
	storing XFmode from fp reg to memory.

Tue Mar 19 07:38:03 1996  Richard Kenner  ([e-mail])

	* m68k.h (MASK_*): New macros.
	(OVERRIDE_OPTIONS): Use them.
	(TARGET_SWITCHES): Likewise.
	Treat -m68332 like -m68000.

Mon Mar 18 20:04:13 1996  Richard Earnshaw ([e-mail])

	* expmed.c (emit_store_flag): If expanding (GE X 0) will need two
	insns, don't use subtarget for the result of the first insn.
	Move a likely constant to the start of a condition.

Mon Mar 18 19:48:14 1996  Philippe De Muyter  <[e-mail]>

	* m68k.h (CONST_OK_FOR_LETTER_VALUE): New constraint 'M'.
	* m68k.c (output_function_epilogue): Restore registers using sp+
	instead of fp(n) in leaf functions.
	(USE_MOVQ, use_movq): Function replaced by macro.
	* m68k.md (pushexthisi_const, movsi_const0): New names.
	(andsi3, iorsi3): Allow only 'M', not 'K' constants, if dest is 'd'.

Mon Mar 18 19:33:20 1996  Fila Kolodny <[e-mail]>

	* i370/t-mvs: New file.
	* configure (i370-*-mvs*): Use it.
	* i370/mvs.h (FUNCTION_PROLOGUE): LE/370 takes 120 bytes for DSA.
	Have only one copy of timestamp and PPA2 per object module.
	Only have unnamed CSECT to match IBM C.

Mon Mar 18 19:26:21 1996  Paul Russell  ([e-mail])