changelog.7

GUN开源阻止下的编译器GCC

	* config/m68k/x-hp320,x-hp320g (TAROUTOPTS): Overridden.

	* Makefile.in (TAROUTOPTS): New variable.
	(install-headers-tar): Use TAROUTOPTS.

	* 3b1.h, 3b1g.h, altos3068.h, crds.h, hp2bsd.h, hp310.h:
	* isi-nfp.h, pbb.h, plexus.h, sun2.h, sun3n.h, tower.h:
	(LONG_DOUBLE_TYPE_SIZE): Redefine as 64.

	* objc/runtime.h: Include gstdarg.h before stdio.h.

	* Makefile.in (libobjc.a): Depend on EXTRA_PARTS.

Wed May 13 18:33:26 1993  Torbjorn Granlund  ([e-mail])

	* arm.h: Declare output_arithmetic_with_immediate_multiply.

        * arm.md (combined mult/arithmetic recognizers): Switch on.
	Add special pattern for reload.

	* arm.md (restorehi): Use SImode for address.
	(storehi): Use SImode for address and address computation.
	(storeinthi): Likewise.

Wed May 12 22:47:35 1993  Richard Stallman  ([e-mail])

	* config/m68k/sun3.h, sun2os4.h (ASM_OUTPUT_FLOAT_OPERAND):
	Output as hex, unless CODE is 'f'.
	* altos3068.h, next.h (ASM_OUTPUT_FLOAT_OPERAND): Likewise.

Wed May 12 14:18:36 1993  John Hassey  ([e-mail])

	* m88k.h (REG_OK_FOR_BASE_P REG_OK_FOR_INDEX_P): Don't
	use extended registers for base or index.

Wed May 12 14:48:00 1993  Jim Wilson  ([e-mail])

	* unroll.c (copy_loop_body): Delete May 10 change.

Tue May 11 20:20:41 1993  James Van Artsdalen  (james at bigtex.cactus.org)

	* tree.c (real_value_from_int_cst): Use temporary variable `e' to
	work around bugs in 386 PCC.

Tue May 11 16:50:54 1993  Michael Meissner  ([e-mail])

	* mips/iris3.h, mips/mips.h, mips/news4.h, mips/nws3250v4.h,
	mips/ultrix.h (ASM_SPEC): Pass appropriate -g<n> switch to the
	assembler for -gstabs<n>, -gstabs+<n>, -ggdb<n>, and -gcoff<n>
	switches.

	* local-alloc.c (block_alloc): Don't dereference a NULL pointer.

Tue May 11 12:09:37 1993  Richard Stallman  ([e-mail])

	* tree.c (build_array_type): Delete the code to set TYPE_MAIN_VARIANT.
	* c-decl.c (complete_array_type): Likewise.

Tue May 11 11:40:14 1993  Jeffrey A. Law  ([e-mail])

	* pa.c (emit_move_sequence): Handle secondary reloads for loads of
	FP registers from constant expressions.

	* pa.h (CONSTANT_ADDRESS_P): Accept symbolic addresses during
	and after reload.

Tue May 11 07:26:06 1993  Richard Kenner  ([e-mail])

	* reorg.c (mostly_true_jump): Jump is forward if TARGET_LABEL is
	zero; don't try to get INSN_CODE of zero.

Tue May 11 00:44:09 1993  Richard Stallman  ([e-mail])

	* tree.c (build_array_type):
	Don't change TYPE_MAIN_VARIANT if incomplete (domain not known).

	* real.c (enan): Add forward decl.

Mon May 10 20:32:12 1993  Jim Wilson  ([e-mail])

	* unroll.c (copy_loop_body): Copy REG_NOTES during main loop
	instead of afterwards.

Mon May 10 17:36:31 1993  Richard Kenner  ([e-mail])

	* alpha.c (output_epilog): Fix minor error in instructions used
	to restore stack pointer.

Mon May 10 15:59:41 1993  Michael Meissner  ([e-mail])

	* mips-tfile.c (parse_def): Do not execute a division by 0 when
	processing a doubly dimensioned array whose outer bound was 0 or
	not specified.

Mon May 10 12:14:07 1993  John Hassey  ([e-mail])

	* m88k.h (TRAMPOLINE_TEMPLATE): Fixed invalid bsr insn.

Mon May 10 11:55:18 1993  Richard Stallman  ([e-mail])

	* protoize.c: Don't include string.h.
	(strcat, strcpy, strcmp, strncpy, strncmp): Decls deleted.
	(dupnstr): Don't use return value of strncpy.
	(dupstr): Function deleted; callers changed to use savestring.

	* tree.c (change_main_variant): New function.
	(build_array_type): Use that to set the TYPE_MAIN_VARIANT.
	* c-decl.c (complete_array_type): Call change_main_variant.

Mon May 10 11:53:02 1993  Steve Chamberlain  ([e-mail])

	* sh.md (movstrsi): Take alignment into account.
	* sh.c (shift_value_ok): Can't shift by negative values.

Mon May 10 11:49:48 1993  Michael Meissner  ([e-mail])

	* va-mips.h (va_arg): Use __alignof__ instead of __alignof.

	* cp-decl.c (finish function): Add missing ';'.

Mon May 10 00:54:16 1993  Richard Stallman  ([e-mail])

	* objc/runtime.h: Include gstdarg.h, not stdarg.h.

	* libgcc2.c (__floatdisf): Use DFtype for intermediate values.

	* tree.c (real_value_from_int_cst):
	If I is unsigned, use REAL_VALUE_FROM_UNSIGNED_INT.

	* config/m68k/m68k.c (output_move_double): Use operand 0 to get SIZE.

	* reload.c (find_equiv_reg): Set goal_mem_addr_varies
	for all but true constant addresses.

Sun May  9 17:53:52 1993  Richard Stallman  ([e-mail])

	* config/sparc/sparc.h (SIZE_TYPE): Deleted.

	* fixincludes: When finding SIZE_TYPE, cd to ${LIB} to run cc.
	(memory.h): Don't try to read it if it doesn't exist.

	* real.c (NAN): Define for support of Not-a-Number bit patterns.
	(make_nan): New function outputs a NaN in requested machine mode.
	(eisnan, eiisnan, enan, einan, eiisinf, eiinfin): New functions.
	(earith, etrunci, etruncui, ereal_negate, ereal_ldexp,
	real_value_truncate, esub, eadd, emul, ediv, eremain):
	Return NaN arg back to caller.
	(eroundi, eroundui, ereal_to_int): NaN to integer returns -1
	and a warning.
	(target_isnan): Check for NaN.
	(eneg): No-op if NaN.
	(eisneg, eisinf): False if NaN.
	(emovi, emovo): Handle NaN conversions.
	(esub, eadd): Infinity minus infinity = NaN and INVALID warning.
	(ediv): 0/0, inf/inf = NaN and INVALID warning.
	(emul): 0 * inf = NaN and INVALID warning.
	(e24toe, e53toe, e64toe): Generate e-type NaN for NaN input.
	(etoe24, etoe53, etoe64): Output NaN in appropriate machine mode.
	(ecmp): Unordered compare returns -2.
	(etoasc): NaN produces ASCII string "NaN".
	(asctoe): Unrecognizable input produces e-type NaN.
	(eremain): x REM y = NaN if y = 0 or x = infinity.

	* real.c (mtherr): Don't put newlines in error message string.

	* real.h (REAL_VALUES_LESS): True if return value of ereal_cmp is -1.

Sun May  9 17:34:06 1993  Brendan Kehoe  ([e-mail])

	* cp-decl.c (finish_function): Don't do anything if we haven't got a
	current_function_decl.

	* cp-pt.c (tsubst): Don't assert if IN_DECL is null.
	(coerce_template_parms): Likewise.

	* cp-type2.c (process_init_constructor): Fix argument passing to
	initializer_constant_valid_p.

Sun May  9 10:47:05 1993  Richard Stallman  ([e-mail])

	* c-decl.c (complete_array_type):
	Make maxindex -1 for empty constructor.

	* i860.c (call_insn_operand): New funcion.
	* i860.md (call, call_value): Copy fn address to safe reg if necessary.
	(call, call_value matchers): Use call_insn_operand as predicate.

	* config/mips/mips.c (call_insn_operand): New function.
	* config/mips/mips.md (call_internal1, call_value_internal1):
	Use call_insn_operand as predicate.
	(call, call_value): Copy fn address to safe reg if necessary.

	* config/m68k/m68k.md (mulhisi3, umulhisi3 matchers):
	Restrict range of constants allowed.

Sun May  9 13:31:35 1993 CET  Kresten Krab Thorup  ([e-mail])

        * objc/hash.h, objc/objc.h, objc/sarray.h (gstddef.h): 
        Conditionally include gstddef.h or stddef.h by IN_GCC.

Sun May  9 00:51:33 1993  Richard Stallman  ([e-mail])

	* reload.h: Fix unterminated comment.

	* objc-act.c (string_section): Delete comma before close-brace.

Sat May  8 23:49:50 1993  Richard Stallman  ([e-mail])

	* config/i386/i386.c (call_insn_operand): New function.
	* i386.md (call matchers): Use call_insn_operand.
	(call expanders): If address uses a virtual reg or arg pointer reg,
	copy it.

Sat May  8 23:19:11 1993  Kaveh R. Ghazi  ([e-mail])

	* configure (m88k-tektronix-sysv3): New target.
	* config/m88k/tekXD88.h: New file.
	* config/m88k/tekXD88.ld: New file.
	* config/m88k/x-tekXD88: New file.

Sat May  8 10:40:54 1993  Richard Stallman  ([e-mail])

	* config/i386/i386.md (call insn matchers):
	Use %a to print a mem's non-constant address;
	don't try to print the address by itself.

	* config/i386/next.h (ASM_GENERATE_INTERNAL_LABEL)
	(ASM_OUTPUT_INTERNAL_LABEL): Don't include a `.' in the label name.
	(LPREFIX): Likewise.

	* m68k.c (print_operand): For CONST_DOUBLE, treat VOIDmode like DImode.

	* expmed.c (init_expmed): Supply missing arg to rtx_cost.

	* config/convex/convex.h (LINK_LIBGCC_SPECIAL_1):
	Define this instead of LINK_LIBGCC_SPECIAL.

Sat May  8 14:43:27 1993  Torbjorn Granlund  ([e-mail])

	* m68k.md (umulsidi3 expand + two matchers): Rewrite.
	Old patterns misused subreg and matched wrong immediate values.
	Use const_int_operand and constraint `n' for the immediate arg.
	(mulsidi3 patterns): Likewise.

Sat May  8 07:06:14 1993  Richard Kenner  ([e-mail])

        * i386/sco.h (VALUE_REGNO, HARD_REGNO_MODE_OK): Add missing #undef.
        * i386/sco.h, i386/sequent.h (HARD_REGNO_MODE_OK): Properly check
        for floating-point registers.  Register 16 is AP and not floating.

Fri May  7 19:43:49 1993  Brendan Kehoe  ([e-mail])

	* cp-typeck.c (default_conversion): Disable change of Apr 13th for
	now, since it seems to behave incorrectly in some cases.

Fri May  7 17:38:22 1993  Michael Meissner  ([e-mail])

	* configure (all MIPS options): If --with-gnu-as is used, don't
	build mips-tfile or mips-tdump.  If --with-gnu-ld is used, don't
	say we need collect2.
	(config.sub run): Explicitly invoke /bin/sh to run script, in case
	config.sub had it's execute bits turned off.

	* mips/t-mips-gas: New target file, used when the GNU assembler is
	used instead of the MIPS assembler.

Fri May  7 17:41:00 1993  Richard Stallman  ([e-mail])

	* Makefile.in (float.h-nat): Use tmp-float.h as intermediate file.

Fri May  7 13:42:06 1993  Mike Stump  ([e-mail])

	* cp-search.c (mi_ventry): Change into a struct to make code more
	readable and to shut up compilers about valid ANSI C code.

Fri May  7 13:15:40 1993  Jeffrey A. Law  ([e-mail])

	* pa.h (reg_class): Add new NON_SHIFT_REGS class.
	(REG_CLASS_NAMES): Name new class "NON_SHIFT_REGS".
	(REG_CLASS_CONTENTS): Initialize NON_SHIFT_REGS.

	* loop.c (strength_reduce): Handle case where loop_end is the
	end of the current function.

Fri May  7 05:50:39 1993  Richard Kenner  ([e-mail])

	* reload.c (push_reload): Don't use IN as the reload reg in in-out
	reload if it is set elsewhere in the insn.

Fri May  7 04:48:25 1993  Chris Smith  ([e-mail])

	* x-convex (CCLIBFLAGS): Build libgcc1 with -tm c1 so it can't
	cause executables to become c2-only.

	* xm-convex.h: Remove workarounds for OS 8.0 no longer needed.
	(bcopy, bzero): Define to use memcpy and memset, to get them inlined.

	* convex[123*].h (CC1_SPEC, CPP_SPEC, LIB_SPEC): Move to convex.h.

	* convex.h (TARGET_FLAGS): Add -mvolatile-[no]cache.
	(TARGET_FLAGS, LONG_TYPE_SIZE): add -mlong{32,64}.
	(target_cpu): Define, enumeration for targets to use instead of flags.
	(TARGET_C34, TARGET_C38): Add.  These don't schedule the same as C2.
	(OVERRIDE_OPTIONS): Call init routine in convex.c.
	(CPP_SPEC, ASM_SPEC, LINK_SPEC): If originally bootstrapped with 
	an ieee compiler, produce an ieee gcc.
	(LINK_LIBGCC_SPECIAL): Define, to avoid searching old libgcc.a
	versions during bootstrap.
	(STACK_BOUNDARY): Change from 32 to 64 -- odd-word aligned
	longwords are slow on c34.
	(FUNCTION_PROLOGUE): Make frame size a multiple of 8, not 4.
	(FUNCTION_EPILOGUE): Output a 0 to terminate c34 icache prefetch.
	(INITIAL_FRAME_POINTER_OFFSET): Make a multiple of 8.
	(REG_ALLOC_ORDER): Define.  Put S0 (the return register) last.
	(HARD_REGNO_MODE_OK): Rewrite to make clearer.
	(MODES_TIEABLE_P): Rewrite to make clearer.
	(PREFERRED_RELOAD_CLASS): Rewrite to make clearer.
	(S0_REGNUM, A0_REGNUM): Define.
	(*_REGNUM): Write in terms of [AS]0_REGNUM instead of absolute numbers.
	(enum reg_class, etc): Add SI_REGS == S_REGS + INDEX_REGS.
	(REGNO_REG_CLASS, REG_CLASS_FROM_LETTER, REGNO_OK_FOR_*_P): Use tables.
	(CONST_OK_FOR_LETTER_P): Change.  New def passes any const_int,
	rejects any const_double.
	(CONST_DOUBLE_OK_FOR_LETTER_P): Change.  New defs are 'G' == low
	word all zeros, 'H' == high word all signs.
	(EXTRA_CONSTRAINT): New. 'Q' == volatile memref.  Used to generate
	cache-bypass instructions when -mvolatile-nocache is set.
	(RETURN_POPS_ARGS): Change, always true.
	(FUNCTION_ARG_ADVANCE): Count args, not # words of args.
	(FUNCTION_ARG): Return arg count to the final VOIDmode FUNCTION_ARG
	hack that supplies "next arg register" to be stored in call insn.
	(TRAMPOLINE_TEMPLATE): Use instruction notation rather than constants.
	(INITIALIZE_TRAMPOLINE): Use gen_call_pop.
	(LEGITIMATE_CONSTANT_P): Rewrite to make clearer.
	(GO_IF_LEGITIMATE_ADDRESS): Do not use indirect addressing -- with
	insn scheduling, two loads can be faster and can't be slower.
	(SLOW_BYTE_ACCESS): Define unless C2.  Memory access to bytes is
	not actually slow, but faster processors don't forward partial
	word writes to word reads, and setting SLOW_BYTE_ACCESS
	makes the code consistently use word ops where possible.
	(CONST_COSTS): Const_DOUBLE cost is zero -- if it appears, it is
	immediate and therefore free.
	(RTX_COSTS): areg+const is free (via indexing).
	(RTX_COSTS): Provide target-dependent values for *,<<,>>
	(ADDRESS_COST): Zero.  Indirect addresses are no longer used.
	(ADJUST_COST): Define.
	(TARGET_FLOAT_FORMAT): Define as VAX_FLOAT_FORMAT.  Also
	accurately describes the semantics (not the bit pattern)
	of convex ieee mode.
	(REAL_VALUE_ATOF): Define, to prevent real.c from constructing
	vax dfloats.  Apparently it doesn't do gfloat.
	(CHECK_FLOAT_VALUE): Call convex.c.
	(ASM_FILE_START): Output appropriate .fpmode pseudo op.
	(ASM_IDENTIFY_GCC): Ouput a zero after gcc2_compiled to keep it
	from hiding the real name from profilers and adb.
	(ASM_OUTPUT_DOUBLE, _FLOAT): Use hex to avoid /bin/as conversion 
	errors.
	(ASM_DECLARE_FUNCTION_NAME): Define; call convex.c.