changelog.9

GUN开源阻止下的编译器GCC

	* rs6000.md (ffssi2): Use gpc_reg_operand predicate.
	(Some maskir patterns): Likewise.
	(ffsdi2): Likewise.

	* rs6000.md (movsfcc, movdfcc): New standard patterns.
	(fselsfsf4, fseldfsf4, fseldfdf4, fselsfdf4): Name and create
	variants of existing anonymous patterns for movsfcc and movdfcc.
	
Wed Feb 22 08:10:36 1995  Philippe De Muyter ([e-mail])

	* final.c (output_asm_name): New function, using code taken
	from output_asm_insn.
	(output_asm_insn): If flag_print_asm_name, print the comment
	after the first assembler instruction even in multi-instruction
	templates.

Wed Feb 22 07:04:25 1995  Ian Lance Taylor  ([e-mail])

	* real.c (REAL_WORDS_BIG_ENDIAN): New macro.  Define as either
	FLOAT_WORDS_BIG_ENDIAN or HOST_FLOAT_WORDS_BIG_ENDIAN.  Use it
	instead of FLOAT_WORDS_BIG_ENDIAN. 

Wed Feb 22 07:03:39 1995  Stephen L Moshier  ([e-mail])

	* final.c (split_double): Handle CONST_INT that holds both words.
	* i386.c (output_move_double): Let split_double extract any
	constant in op 1; take size from op 0.

	* real.c (m16m, edivm, emulm): Change `short' to `EMUSHORT', and `long'
	to `EMULONG'.
	Clean up comments.

Wed Feb 22 00:52:40 1995  Jeffrey A. Law  <[e-mail]>

	* pa.h (ASM_DECLARE_FUNCTION_NAME): Handle invisible reference
	arguments passed in registers.

Tue Feb 21 19:03:09 1995  Douglas Rupp  ([e-mail])

	* Makefile.in ($exeext, $objext, $oldobjext): New macros.
	* Makefile.in: Copy config.status to config.run and then execute.
	* configure, Makefile.in: Try a "cp" if "ln" fails.
	* objc/Makefile: Added {} around file variable.

	* c-parse.in: New rules to allow attributes in a prefix position.
	* c-tree.h (decl_attributes): Added argument.
	* c-decl.c (grokdeclarator): Added code to support machine attributes.
	* c-common.c (decl_attributes): Add third argument prefix_attributes.
	(valid_machine_attribute): Deleted; moved to tree.c.
	* tree.h (union tree_decl): New field MACHINE_ATTRIBUTES.
	(DECL_MACHINE_ATTRIBUTES): New macro.
	* c-decl.c (duplicate_decls): Pass DECL_MACHINE_ATTRIBUTES to
	descendent typedef; make duplicate typedefs that are identical 
	generate a warning if they are both in system header files.  
	(redeclaration_error_message): Make duplicate typedefs that 
	are identical not an error if they are both in system header files.  
	* print-tree.c (print_node{,_brief}): Print machine attributes.

	* calls.c (emit_call_1): Added function declaration node argument
	passed to RETURN_POPS_ARGS; also effects calls to emit_call_1.
	* function.c (assign_parms): Added arg to RETURN_POPS_ARGS.
	* 1750a.h, a29k.h, alpha.h, arm.h, clipper.h, convex.h: Likewise.
	* dsp16xx.h, elxsi.h, fx80.h, gmicro.h, h8300.h, i370/mvs.h: Likewise.
	* i386.h, i386/isc.h, i386/next.h, i386/sco.h: Likewise.
	* i386/scodbx.h, i860.h, i960.h, m68k.h, m88k.h, mips.h: Likewise.
	* ns32k.h, pa.h, pdp11.h, pyr.h, romp.h, rs6000.h, sh.h: Likewise.
	* sparc.h, spur.h, tahoe.h, vax.h, we32k.h: Likewise.

	* cccp.c (main): Don't set "Include" environment variable for NT.
	* protoize.c: Added #ifdef's WINNT.
	* toplev.c (get_run_time): Return an approximate value for NT.
	* gbl-ctors.h, libgcc2.c (atexit): Prototype now works with NT.
	* gcc.c (fix_argv): Rewrite.

	* i386/winnt.c: New file
	* winnt/ld.c (expand_lib): Look for both libfoo.a and foo.lib.
	Modified to support linking with Windows NT graphics libraries. 
	* i386/winnt.h, x-winnt: Support NT Graphics programs; also bug fixes.
	* winnt/winnt.h (CPP_SPEC): Accept c++ style comments.
	* winnt/xm-winnt.h: Reflect features/functions available in NT.

	* fixinc.winnt: New file.
	* configure (i[345]86-*-winnt): Add fixincludes and extra_objs.
	* config-nt.bat: Deleted.
	* configure.bat: Take arg specifying msdos or winnt batch file config.
	* i386/config-nt.{bat,sed}: Updated to Windows NT 3.5.

	* ginclude/stdarg.h, ginclude/varasgs.h: Test _VA_LIST_DEFINED macro.
	* ginclude/stddef.h: Test _SIZE_T_DEFINED and _WCHAR_T_DEFINED.
	* ginclude/varargs.h: Modifed to work with Windows NT.  Needed a 
	_VA_LIST_DEFINED macro.

	* tree.c: (chain_member_value, decl_attribute_variant): New functions.
	(valid_machine_attribute): Moved here from c-common.c.

	* varasm.c (make_decl_rtl): Call MODIFY_ASSEMBLER_NAME if defined.

Tue Feb 21 12:40:05 1995  Jeffrey A. Law  <[e-mail]>

	* local-alloc.c (block_alloc): Stop looping over the input
	operands once we find an input/output register pair which can
	be combined into a single qty.

	* integrate.c (finish_inline): Don't set DECL_INLINE.

Tue Feb 21 10:19:51 1995  Michael Meissner  <[e-mail]>

	* toplev.c (lang_options): Move fortran switches here, fixing bad
	patch.

Tue Feb 21 07:30:11 1995  Stephen L Moshier  ([e-mail])

	* rs6000.c (output_toc): Use REAL_VALUE_* macros.
	* rs6000.h (REAL_ARITHMETIC): Define.

Tue Feb 21 06:48:41 1995  Stephen R. van den Berg  ([e-mail])

	* stmt.c (expand_value_return): Make function static.

Tue Feb 21 06:42:33 1995  Paul Eggert  <[e-mail]>

	Add support for ISO Normative Addendum 1 to the C Standard.
	* ginclude/iso646.h: New file.
	* Makefile.in (USER_H): Add iso646.h.
	* c-lex.c (yylex): Add support for <: :> <% %> digraphs.
	* cccp.c (rescan): Add support for %: and %:%: digraphs.
	(collect_expansion, skip_if_group, dump_single_macro): Likewise.
	(union hashval): Remove ival member; it doesn't suffice for `199409L'.
	(special_symbol): Use cpval instead of ival for T_CONST macros.
	(install): Remove ivalue argument, since string value now suffices.
	All callers changed.
	(initialize_builtins): Switch from int to string values for T_CONST.
	If not traditional, initialize __STDC_VERSION__ to 199409L.
	(STDC_VALUE): Remove no-longer-used configuration macro.

Tue Feb 21 06:16:37 1995  Franz Korntner  ([e-mail])

	* gcc.c (read_specs): Use length read when inserting zero.

	* c-lex.c (yylex): For float, build constant in long double.

Tue Feb 21 05:57:42 1995  Craig Burley  ([e-mail])

	* toplev.c (lang_options): Add options for Fortran.

	* gcc.c (default_compilers): Add entries for .f and .F.

Tue Feb 21 05:37:21 1995  Richard Kenner  ([e-mail])

	* gcc.c (default_compilers): Remove rule for ".ada".
	Pass .ads or .adb suffix to -dumpbase, depending on input filename.

	* toplev.c (compile_file): Initialize input_file_stack before
	calling lang_init, not after.
	* c-lex.c (check_newline): Give warning if unrecognized data on #line.
	(yylex): Give error for unterminated string constant.

Mon Feb 20 14:46:56 1995  Per Bothner  <[e-mail]>

	* varasm.c (output_constant):  Strip NOP_EXPRs for SET_TYPE too,
	by using AGGREGATE_TYPE_P macro.

Mon Feb 20 14:39:57 1995  Per Bothner  <[e-mail]>

	* config/svr4.h (ASM_OUTPUT_SOURCE_LINE):  Use assemble_name.

Mon Feb 20 15:26:05 1995  Doug Evans  <[e-mail]>

	* config.sub (sun4sol2): Alias for sparc-sun-solaris2.

Sat Feb 18 16:15:33 1995  Mike Stump  <[e-mail]>

	* libgcc2.c (__unwind_function): New function to support stack
	unwinding on rs6000 for g++ exception handling.

Sat Feb 18 13:55:02 1995  Per Bothner  <[e-mail]>

	* tree.h (get_set_constructor_bytes): Fix prototype.
	* varasm.c (output_constructor): Fix typo byte_size -> size.

Sat Feb 18 12:36:12 1995  Doug Evans  <[e-mail]>

	Lynx patches from various Cygnus people.
	* config.sub: Recognize lynx* as lynxos.
	* configure (i386-lynx): Set xm_file to i386/xm-lynx.h
	Set tmake_file to i386/t-i386bare.
	(m68k-lynx): Set xm_file to m68k/xm-lynx.h.
	Set tmake_file to m68k/t-lynx.
	(rs6000-lynxos*): New target.
	(sparc-lynxos*): Set xm_file to sparc/xm-lynx.h.
	Set tmake_file to sparc/t-sunos41.
	* config/lynx.h (LIB_SPEC, STARTFILE_SPEC): Update to LynxOS 2.2.2.
	(FUNCTION_PROFILE): Undef.
	* config/xm-lynx.h (HOST_BITS_PER_CHAR): Delete.
	(HOST_BITS_PER_{SHORT,INT,LONG,LONGLONG}): Likewise.
	(mktemp): Provide our own, lynx's definition isn't standard.
	* i386/t-i386bare (LIBGCC1): Define to empty instead of libgcc1.null.
	(CROSS_LIBGCC1): Likewise.
	* i386/xm-lynx.h: New file.
	* m68k/lynx.h (FUNCTION_VALUE): Redefine.
	(LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P, NEEDS_UNTYPED_CALL): Likewise.
	* m68k/t-lynx: New file.
	* m68k/xm-lynx.h: New file.
	* rs6000/lynx.h: New file.
	* rs6000/rs6000.h (SUBTARGET_OVERRIDE_OPTIONS): Define.
	(OVERRIDE_OPTIONS): Call it.
	* rs6000/x-lynx: New file.
	* rs6000/xm-lynx.h: New file.
	* sparc/xm-lynx.h: New file.

Thu Feb 16 17:02:51 1995  Ian Lance Taylor  <[e-mail]>

	* config/mips/mips.h (enum processor_type): Add PROCESSOR_R4650.
	* config/mips/mips.c (override_options): Use PROCESSOR_R4650 for
	the 4650, not PROCESSOR_R4600.  Check for it when doublechecking
	mips_isa level.
	* config/mips/mips.md: Add r4650 to cpu attr.  Update functional
	units for r4650.
	(mulsi3): If TARGET_MAD, generate mulsi3_r4650.
	(mulsi3_r4650): New instruction, mul directly to register file,
	supported on r4650.

Thu Feb 16 11:44:51 1995  Michael Meissner  <[e-mail]>

	* rs6000/eabi.h (SUBTARGET_SWITCHES): Add support for
	-mstrict-align to control whether STRICT_ALIGNMENT is 1 or 0.
	(STRICT_ALIGNMENT): Redefine, to be 1 if -mstrict-align used.

Wed Feb 15 13:03:38 1995  Richard Kenner  ([e-mail])

	* libgcc2.c: Repair botch in application of patch.

Tue Feb 14 16:00:52 1995  Per Bothner  <[e-mail]>

	* tree.c (get_set_constructor_bytes):  New function.  Replaces ...
	(get_set_constructor_words):  ... removed old function.
	* tree.h: get_set_constructor_words -> get_set_constructor_bytes.
	* expr.c (store_constructor):  Don't use get_set_constructor_words.
	* varasm.c (const_hash):  Add support for SET_TYPE constructors.
	(record_constant_1):  Likewise.
	(copy_constant):  Likewise.
	(output_constant):  Likewise.  (Also SET_TYPE INTEGER_CSTs.)

Tue Feb 14 08:05:07 1995  Richard Kenner  ([e-mail])

	* tree.c (stabilize_reference_1): No longer static.
	* tree.h (stabilize_reference_1): Add declaration.

Mon Feb 13 19:37:15 1995  Roland McGrath  <[e-mail]>

	* config/mips/gnu.h: Rewritten to use ELF object format.
	* config/gnu.h (GNU_CPP_PREDEFINES): New macro.
	* config/i386/gnu.h (CPP_PREDEFINES): Use GNU_CPP_PREDEFINES macro.
	* config/i386/gnuelf.h: Likewise.

Mon Feb 13 14:06:04 1995  Jason Merrill  <[e-mail]>

        * libgcc2.c (__default_new_handler): Don't call write if
        inhibit_libc is defined.
        (__pure_virtual): Ditto.

Mon Feb 13 16:42:38 1995  Doug Evans  <[e-mail]>

	* a29k/a29k-udi.h (DBX_DEBUGGING_INFO): Define.
	(PREFERRED_DEBUGGING_TYPE): Define.

	* expmed.c (store_split_bit_field): If value is VOIDmode,
	pass word_mode to force_reg.

	* varasm.c (function_section): New function.
	(assemble_start_function): Call it.
	* output.h (function_section): Declare it.
	* final.c (final_scan_insn): Call function_section instead of
	text_section.
	* dwarfout.c (dwarfout_begin_block): Likewise.
	(dwarfout_end_block): Likewise.
	(dwarfout_label): Likewise.
	(dwarfout_begin_function): Likewise.
	(dwarfout_end_function): Likewise.
	(dwarfout_line): Likewise.

	* flow.c (find_basic_blocks): Revise calculation of when to
	make another pass.

	* libgcc2.c (exit): Don't call __do_global_dtors if
	INIT_SECTION_ASM_OP and OBJECT_FORMAT_ELF.

	* Makefile.in (libgcc1.S): New target.

Mon Feb 13 12:45:11 1995  Per Bothner  <[e-mail]>

	* tree.c (permanent_allocation):  Pop function_maybepermanent_obstack,
	not hardwired &maybepermanent_obstack.

Mon Feb 13 12:10:31 1995  J.T. Conklin  <[e-mail]>

	* config/netbsd.h: Changed so that macro definitions used when gcc
	is integrated into the NetBSD source tree are not defined unless
	NETBSD_NATIVE is defined too.

	* configure (*-netbsd-*): Rename netbsd config files so that they don't
	have the machine type in them.
	* i386/netbsd.h: Renamed from i386/netbsd-i386.h.
	* m68k/netbsd.h: Renamed from m68k/netbsd-m68k.h.
	* ns32k/netbsd.h: Renamed from ns32k/netbsd32k.h.

Mon Feb 13 15:05:09 1995  Jason Merrill  <[e-mail]>

        * collect2.c (main): Remember all the .o files specified on the
        command line, and scan them directly if COLLECT_SCAN_OBJECTS.
        * rs6000/rs6000.h (COLLECT_SCAN_OBJECTS): Define.

        * stmt.c (warn_if_unused_value): Don't warn about dereferenced
        references.

Mon Feb 13 14:00:51 1995  Jim Wilson  <[e-mail]>

	* m68k.h (RTX_COSTS): Fix typo from last change.

	* reload1.c (last_spill_reg): Move definition to top of file.
	Don't initialize here.  
	(reload): Intialize here to -1.

Mon Feb 13 09:29:49 1995  Paul Eggert  <[e-mail]>

	* fixinc.svr4 (longlong_t, u_longlong_t):
	Work around bug in Solaris 2.4 <sys/types.h>.

Mon Feb 13 08:31:18 1995  David Edelsohn  <[e-mail]>

	* rs6000.h, powerpc.h (CPP_SPEC): Define _POSIX_SOURCE if -posix.