view gcc/ChangeLog-1997 @ 16:04ced10e8804

gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents 77e2b8dfacca
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Wed Dec 31 14:42:18 1997  Ian Lance Taylor  <>

	* Set and substitute host_exeext.  Use it when creating
	the assembler and linker symlinks.
	* configure: Rebuild.
	* (exeext): Set to @host_exeext@.
	(build_exeext): New variable, set to @build_exeext@.
	(FLAGS_TO_PASS): Pass down build_exeext.
	(STAGESTUFF): Use build_exeext, not exeext, for gen* and bi*

Wed Dec 31 10:05:44 1997  Jeffrey A Law  (

	* (addsi3, subsi3): Fix thinkos.

Tue Dec 30 00:04:49 1997  Richard Henderson  <>

	* sparc.h (ASM_OUTPUT_MI_THUNK): Move %o7 through %g1 instead of
	save+restore.  Fix pic+big_offset delay slot.  Use "pic" case for
	unix always, since we want to be able to thunk to functions in a
	shared library from an application.

Mon Dec 29 14:37:31 1997  Ian Lance Taylor  <>

	* mips/t-ecoff (CROSS_LIBGCC1): Define to libgcc1-asm.a.

Mon Dec 29 14:03:38 1997  Jeffrey A Law  (

	* expr.c (expand_expr): For {BITFIELD,COMPONENT,ARRAY}_REF, if the
	offset's mode is not ptr_mode, convert it.

Mon Dec 29 15:58:18 1997  Michael Meissner  <>

	* libgcc2.c (inhibit_libc): Don't define inhibit_libc when cross
	compiling if it was already defined.

Sun Dec 28 00:32:16 1997  Jeffrey A Law  (

	* flow.c (find_basic_blocks): Don't create a new basic block
	for calls in a LIBCALL block.

Sun Dec 28 00:30:24 1997  David Edelsohn  <>

	* config/fp-bit.c (L_df_to_sf): Fix typo in last change.

Sat Dec 27 22:43:12 1997  Jeffrey A Law  (

	* cse.c (rtx_cost): Remove conflicting default case.

Sat Dec 27 21:20:02 1997  Richard Henderson  <>

	* Move default enabling of Haifa out of for loop.
	* configure: Rebuild.

Thu Dec 25 01:02:54 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

1997-12-25  Teemu Torma  <>

	* (GTHREAD_FLAGS): New var.
	(distclean): Remove gthr-default.h.

	* Accept dce as a thread package.
	Check for thread.h and pthread.h.
	Link gthr-default.h to appropriate thread file and set
	(hppa1.1-*-hpux10*): If --enable-threads, use dce threads and
	include multilib definitions from pa/t-dce-thr.
	(sparc-*-solaris2*): Enable threads by default, if thread.h or
	pthread.h is found, preferring posix threads over solaris ones.

	* config/pa/t-dce-thr: New file.
	* config/pa/t-pa: Removed multilibs.
	* config/sparc/t-sol2: Likewise.

	* gthr.h: New file.
	* gthr-single.h: New file.
	* gthr-posix.h: New file.
	* gthr-solaris.h: New file.
	* gthr-dce.h: New file.
	* libgcc-thr.h: Removed.
	* objc/thr-dce.c: New file copied from thr-decosf1.c.

	* frame.c: Include gthr.h instead of libgcc-thr.h.
	* libgcc2.c: Include gthr.h instead of libgcc-thr.h.
	(eh_context_initialize): If __gthread_once fails, use static eh
	(eh_context_free): Call __gthread_key_dtor.

Wed Dec 24 23:33:17 1997  Jeffrey A Law  (

	* expr.h (MUST_PASS_IN_STACK): Allow target port to override.

Wed Dec 24 23:12:14 1997  Jim Wilson  <>

	* cse.c (max_insn_uid): New variable.
	(cse_around_loop): Use max_insn_uid.
	(cse_main): Set max_insn_uid.

	and define __LONG_MAX__ appropriately.  Add support for -mabi=X,
	-mlong64, and -mgp{32,64} options.
	* mips.c (mips_abi): Change type to int.
	* mips.h (enum mips_abi_type): Delete.
	(ABI_32, ABI_N32, ABI_64, ABI_EABI): Define as constants.
	(mips_abi): Change type to int.

Wed Dec 24 22:38:34 1997  John Carr  <>

	* flags.h, toplev.c, calls.c, alias.c: Remove flag_alias_check;
	optimization is now always enabled.

	* calls.c (expand_call): Recognize C++ operator new as malloc-like

	* alias.c (memrefs_conflict_p): Eliminate tests now done by
	(*_dependence): Call canon_rtx before base_alias_check.
	(init_alias_once): New function to precompute set of registers which
	can hold Pmode function arguments.

	* rtl.h: Declare init_alias_once.

	* toplev.c (compile_file): Call init_alias_once.

Wed Dec 24 22:34:55 1997  Jeffrey A Law  (

	* tree.c (restore_tree_status): Do not dereference a null pointer.

Tue Dec 23 12:56:46 1997  Paul Eggert  <>

	* genattrtab.c (main): Check HAVE_{G,S}ETRLIMIT in addition to
	RLIMIT_STACK.  This maintains consistency with the recent, similar
	patch to cccp.c and toplev.c.

Tue Dec 23 05:17:28 1997  Richard Henderson  <>

	* genattrtab.c (expand_units): For large nr opclasses, expand
	function_units_used with ORX to prevent blowups.  Tag with FFS.
	(num_unit_opclasses): New variable.
	(gen_unit): Update it.
	(enum operator): Add ORX_OP.
	(operate_exp): Treat ORX as or, except don't expand across an if.
	Reuse number rtx's after operating on them.
	(check_attr_value): Accept IOR, AND, & FFS.
	(write_test_expr): Transmute `in_comparison' to `flags'.  Allow
	for attribute value caching.  Handle CONST_STRING, IF_THEN_ELSE.
	(write_expr_attr_cache, write_toplevel_expr): New functions.
	(write_attr_get): Handle FFS-tagged expressions.
	(make_canonical): Don't expand const attributes.
	(convert_const_symbol_ref): Dike out.
	(evaluate_eq_attr): Handle SYMBOL_REF.
	(main): Don't emit get_attr_foo for const attributes.

	* alpha.c (override_options): Reinstate PROCESSOR_EV6.
	(alpha_adjust_cost): Add EV6 tuning; streamline EV5 tests.
	* alpha.h (REGISTER_MOVE_COST): Increase ftoi/itof cost slightly.
	* Redo all of the scheduling, adding EV6 support, and
	combining function units where possible.
	(attr "type"): Split loads, stores, cmov into int/fp.  Combine
	multiplies and divides.  Add EV6 sqrt, ftoi, itof.
	(attr "opsize"): New attribute.
	(sqrtsf2-1, sqrtdf2-1): Provide proper TP_INSN patterns.
	(movsf2-[12], movdf2-[12]): Provide CIX varients; don't allow CIX
	to control register allocation.
	(movsi2-1, movdi2-1): Likewise.

Tue Dec 23 03:53:21 1997  Richard Henderson  <>

	Move OSF/1 specific defines out.
	Move Linux specific defines out.
	(LINK_SPEC): Genericize.
	(ASM_FILE_START): Emit .arch if using more than the base insn set.
	(ASM_OUTPUT_SOURCE_LINE): Remove; identical to alpha.h version.
	(SDB_DEBUGGING_INFO): Remove; gas can't handle it.
	* alpha/osf.h: New file.
	* alpha/linux.h: Split.  Retain file-format independent defines.
	Import Linux bits from elf.h.
	(CPP_PREDEFINES): Take a file-format specific SUB_CPP_PREDEFINES.
	(FUNCTION_PROFILER): _mcount takes its address in $28.
	* alpha/linux-ecoff.h: New file.
	* alpha/linux-elf.h: New file.
	* alpha/vms.h (LIB_SPEC, LINK_SPEC): Copy from osf.h.
	* alpha/win-nt.h (TARGET_DEFAULT): Define.
	* (alpha*-*-osf*, alpha*-*-linux*) [tm_file]:
	Add new headers as appropriate.

	* (alpha*): Enable Haifa by default.
	(*-*-winnt3*): Change to winnt*, since we're not v3 specific.
	* configure: Rebuild.

Tue Dec 23 03:14:54 1997  Richard Henderson  <>

	* (clean): Remove the stages with their objects here ...
	(distclean): ... instead of here.

Mon Dec 22 11:24:01 1997  Kaveh R. Ghazi  <>

	* cse.c (rtx_cost): Add default case in enumeration switch.
	* fix-header.c (recognized_macro): Likewise.
	(recognized_extern): Likewise.
	(write_rbrac): Likewise.
	* objc/objc-act.c (encode_aggregate): Likewise.
	(gen_declarator): Likewise.
	(gen_declspecs): Likewise.

Mon Dec 22 09:58:51 1997  Jeffrey A Law  (

	* haifa-sched.c (create_reg_dead_note): Detect and handle another
	case where we kill more regs after sched than were killed before
	* sched.c (create_reg_dead_note): Similarly.

Mon Dec 22 09:18:37 1997  Jeffrey A Law  (

	* c-pragma.c: Include flags.h.

Sun Dec 21 22:10:59 1997  Mumit Khan  <>

	* i386/cygwin32.h (NO_IMPLICIT_EXTERN_C): Don't assume anything
	about system headers.
	(LIB_SPEC): Add -ladvapi32 -lshell32 to be consistent with mingw32
	and also to resolve symbols in prefix.c.

	* i386/xm-cygwin32.h (HAVE_BCOPY): Define. This avoids a conflict
	between gansidecl.h and newlib's _ansi.h when building libgcc2.a,
	when the definitions in auto-config.h is not visible.
	(HAVE_BZERO): Likewise.
	(HAVE_BCMP): Likewise.
	(HAVE_RINDEX): Likewise.
	(HAVE_INDEX): Likewise.

Sun Dec 21 21:54:22 1997  Jeffrey A Law  (

	* pa.c (emit_move_sequence): Handle a function label source

Sun Dec 21 16:13:55 1997  Nick Clifton  <>

	* c-pragma.c (handle_pragma_token): Generate warning messages
	about unknown pragmas if warn_unknown_pragmas is set.

	* c-decl.c (c_decode_option): Parse -Wunknown-pragmas command
	line option to set variable: warn_unknown_pragmas.

Sun Dec 21 15:51:10 1997  Manfred Hollstein  <>

	* m68k/mot3300.h (ASM_BYTE_OP): Don't include '\t' in the
	(ASM_OUTPUT_ASCII): Prefix ASM_BYTE_OP by one single '\t'.

Sun Dec 21 13:58:39 1997  Jeffrey A Law  (

	(libgcc2.a): Depend on $(DPBIT) and $(FPBIT).  Add rules to
	generate more fine grained floating point emulation libraries.
	* config/fp-bit.c: Add protecting #ifdef to all functions so
	that they can be compiled separately.  If !FINE_GRAINED_LIBRARIES,
	then compile all suitable functions.
	(pack_d, unpack_d, fpcmp_parts): Add declarations, define with two
	underscores to avoid namespace pollution.
	* t-mn10200 (LIB2FUNCS_EXTRA): Remove fp-bit.c.
	(FPBIT): Define.
	* t-mn10300 (LIB2FUNCS_EXTRA): Remove fp-bit.c and dp-bit.c.
	(FPBIT): Define.
	(DPBIT): Define.

Sat Dec 20 11:26:47 1997  Kaveh R. Ghazi  <>
			  Jeff Law  <>

	* bitmap.c (bitmap_clear): Ensure `inline' is at the beginning
	of the declaration.
	* c-decl.c (finish_decl): Use parentheses around && within ||.
	* rtl.c: Include stdlib.h.
	(read_skip_spaces): Add parentheses around assignments used as
	truth values.
	(read_rtx): Initialize list_rtx.
	* cppexp.c (parse_number): Use || when operands are truth values.
	* alias.c (find_base_value): Add default case.
	(memrefs_conflict): Likewise.
	* combine.c (sets_function_arg_p): Likewise.
	* genemit.c (gen_exp): Likewise.
	* local-alloc.c (contains_replace_regs): Likewise.
	* rtlanal.c (jmp_uses_reg_or_mem): Likewise.
	* fold-const.c (fold_convert): Use "&&" for truth values.
	(fold): Add default case.
	* sdbout.c (sdbout_field_types): Fix typo in declaration.
	(sdbout_one_type): Add default case.
	* alpha.c (alpha_sa_mask): Prototype only if OPEN_VMS.
	(some_operand): Add default case.
	(input_operand): Likewise.
	(signed_comparison_operator): Likewise.
	(divmod_operator): Likewise.
	(alpha_set_memflags_1): Likewise.
	* reload1.c (reload_cse_simplify_operands): Ensure function
	always returns a value.
	* scan-decls.c (scan_decls): Likewise.
	* c-lex.c (skip_white_space): Fix typo in declaration.
	* c-typeck.c (comp_target_types): Add parentheses around assignment
	used as truth value.
	(print_spelling): Likewise.
	(constructor_implicit, constructor_result): Remove unused variables.
	* collect2.c (scan_library): Protect prototype with
	* emit-rtl.c (find_line_note): Fix typo in declaration.
	* final.c (asm_insn_count): Protect prototype with
	#ifdef HAVE_ATTR_length.
	* flow.c (find_auto_inc): Protect prototype with #ifdef AUTO_INC_DEC.
	(try_pre_increment_1, try_pre_increment): Likewise.
	* regclass.c (auto_inc_dec_reg_p): Protect prototype with
	#ifdef FORBIDDEN_INC_DEC_CLASSES.  Make return type explicit.
	* gcov-io.h (__store_long, __write_long, __read_long): Fix
	unsigned/signed comparisons.
	* gcov.c (read_files): Remove unused "first_type" variable.
	(scan _for_source_files): Initialize s_ptr.
	(function_summary): Eliminate "%lf" formatting, use %ld for
	(output_data): Initialize branch_probs and last_line_num.
	Eliminate "%lf" formatting, use "%ld" for longs.

Fri Dec 19 17:31:11 1997  Ian Lance Taylor  <>

	* mips16.S: New file.

	* libgcc2.c (varargs): Handle mips16.

	* expr.c (do_tablejump): Let CASE_VECTOR_PC_RELATIVE be an
	* stmt.c (expand_end_case): Likewise.
	* alpha.h (CASE_VECTOR_PC_RELATIVE): Update.
	* fx80.h, gmicro.h, m68k.h, m88k.h, ns32k.h: Likewise.
	* rs6000.h, sh.h, tahoe.h, v850.h, vax.h: Likewise.

Tue Dec 16 15:14:09 1997  Andreas Schwab  <>

	* objc/ Create runtime-info.h and libobjc_entry.o in
	the build directory.
	(libobjc.a): Update dependency list.
	(libobjc.dll): Likewise.  Use libobjc_entry.o from the build
	(objc/sendmsg.o): Add -Iobjc to find runtime-info.h.
	(objc.mostlyclean): Remove runtime-info.h.

Fri Dec 19 00:19:42 1997  Richard Henderson  <>

	* tree.c (build_range_type): Allow creation of ranges with no maximum.
	* dbxout.c (dbxout_range_type): Handle missing TYPE_MAX_VALUE.
	* dwarf2out.c (add_subscript_info): Likewise.
	* dwarfout.c (subscript_data_attribute, byte_size_attribute): Likewise.
	* sdbout.c (plain_type_1): Likewise.
	* stmt.c (pushcase_range, all_cases_count, node_has_high_bound):
	* fold-const.c (int_const_binop, fold_convert, make_range, fold):

Thu Dec 18 17:05:10 1997  Kaveh R. Ghazi  <>

	* mips.c (fatal): Remove declaration.

1997-12-18  Mark Mitchell  <>

	* integrate.c (get_label_from_map): New function.
	(expand_inline_function): Use it.  Initialize the label_map to
	NULL_RTX instead of gen_label_rtx.
	(copy_rtx_and_substitute): Use get_label_from_map.
	* integrate.h (get_label_from_map): New function.
	(set_label_from_map): New macro.
	* unroll.c (unroll_loop): Use them.
	(copy_loop_body): Likewise.

Thu Dec 18 19:19:57 1997  Ian Lance Taylor  <>

	* mips/mips.h (INIT_SUBTARGET_OPTABS): Define if not defined.
	* mips/ecoff.h: Include gofast.h before mips.h.
	* mips/elf64.h: Likewise.
	* mips/elf.h (ASM_OUTPUT_SECTION_NAME): Define.

Thu Dec 18 14:51:12 1997  Jason Merrill  <>

	* except.c: Remove register_exception_table{,_p}.

Thu Dec 18 14:57:29 1997  Gavin Koch  <>

	* unroll.c (calculate_giv_inc): Handle constant increment found in
	a MEM with an appropriate REG_EQUAL note.

	* calls.c (expand_call): Implement LOAD_ARGS_REVERSED.

	* dwarf2out.c (dwarf2out_frame_debug): Handle adjustments of the
	frame pointer in the prologue.

Thu Dec 18 00:19:38 1997  Robert Lipe  <>

	* i386/x-sco5 (CLIB): Deleted.
	(ALLOCA): Added.
	* i386/xm-sco5.h (USE_C_ALLOCA): Added.

Tue Dec 16 18:51:00 1997  Bill Moyer  <>

	* config/m68k/m68k.c (output_function_prologue): Typecast
	dwarf2out_cfi_label to (char *).
	* config/m68k/m68kemb.h (STARTFILE_SPEC): Redefined to "".

Wed Dec 17 15:06:04 1997  Richard Henderson  <>

	* (jump): Don't use the annul bit around an empty loop.
	Patch from Kevin.Kelly@East.Sun.COM.

Wed Dec 17 00:51:36 1997  Stan Cox  (

	* jump.c (jump_optimize): Don't use the return register as a
	source1 of a conditional move.

Tue Dec 16 23:45:40 1997  Richard Henderson  <>

	* sparc.c (DF_MODES): Or the mask not the bit number.
	(function_arg) [ARCH64]: Send unprototyped arg to fp reg first.

Wed Dec 17 00:13:48 1997  Christian Iseli  <>

	* combine.c (force_to_mode): Return immediately if operand is a

Tue Dec 16 23:44:54 1997  Manfred Hollstein  <>

	* fixincludes (size_t): Add support for Motorola's stdlib.h
	which fails to provide a definition for size_t.
	(fabs/hypot): Provide a prototype for fabs on m88k-motorola-sysv3.
	(strlen,strspn,strcspn return value): Handle different layout on sysV88.
	(hypot): Provide a fake for hypot for m88k-motorola-sysv3.

	* m68k/xm-mot3300.h (ADD_MISSING_POSIX, ADD_MISSING_XOPEN): Define to
	prevent unresolved externals in libio.
	* m88k/xm-sysv3.h (ADD_MISSING_POSIX, ADD_MISSING_XOPEN): Likewise.

Tue Dec 16 23:25:45 1997  H.J. Lu  (

	* config/sparc/linux64.h (LIBGCC_SPEC): Removed.
	(LIB_SPEC): Updated for glibc 2.

Tue Dec 16 20:11:36 1997  Jeffrey A Law  (

	* ginclude/stdarg.h: Undo BeOS changes, they break hpux.
	* ginclude/varargs.h: Likewise.

Tue Dec 16 00:32:01 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

Tue Dec 16 00:14:29 1997  H.J. Lu  (

	* frame.h (__register_frame, __register_frame_table,
	__deregister_frame): New.
	* frame.c (__register_frame, __register_frame_table,
	__deregister_frame): New.
	* frame.c (__deregister_frame_info): Return void *.
	* frame.h (__deregister_frame_info): Likewise.
	* collect2.c (__deregister_frame_info): Likewise.

Mon Dec 15 18:40:08 1997  Richard Henderson  <>

	* expmed.c (expand_shift): If SHIFT_COUNT_TRUNCATED, drop a SUBREG.

Mon Dec 15 18:31:43 1997  Richard Henderson  <>

	* alpha.c (alpha_cpu_name): New variable.
	(alpha_mlat_string): Likewise.
	(alpha_memory_latency): Likewise.
	(override_options): Handle -mmemory-latency.
	(alpha_adjust_cost): Adjust load cost for latency.
	* alpha.h (TARGET_OPTIONS): Add memory-latency.
	(REGISTER_MOVE_COST): Define in terms of memory_latency.  Take
	TARGET_CIX into account.
	(MEMORY_MOVE_COST): Define in terms of memory_latency.
	* invoke.texi (DEC Alpha Options): Document -mmemory-latency.

	* alpha.h (ASM_COMMENT_START): New macro.

Mon Dec 15 17:48:05 1997  Richard Henderson  <>

	* reload.h, reload1.c (eliminate_regs), caller-save.c, dbxout.c,
	dwarfout.c, dwarf2out.c, reload.c, sdbout.c: Revert March 15 change.

	* reload.c (push_reload): If WORD_REGISTER_OPERATIONS, reload the
	SUBREG_REG if the word count is unchanged.
	* reload1.c (eliminate_regs) [case SET]: If W_R_O, preserve
	subregs of identical word size for push_reload.

Mon Dec 15 11:41:32 1997  Mark Mitchell  <>

	* toplev.c (rest_of_compilation): Don't call save_for_inline_copy
	if all we're doing is dealing with -Wreturn-type.

Mon Dec 15 09:44:39 1997  Richard Henderson  <>

	* (zero_extendqihi2, zero_extendqisi2, zero_extendqidi2):
	Use and 255 instead of zapnot 1, since it schedules better.

Mon Dec 15 08:48:24 1997  Jeffrey A Law  (

	* stmt.c (expand_asm_operands): If an ASM has no outputs, then treat
	it as volatile.

Mon Dec 15 00:04:48 1997  Jeffrey A Law  (

	* haifa-sched.c (remove_dependencies): Set RTX_INTEGRATED_P on
	dependency we delete.  Properly update prev for multiple consecutive
	(priority): Skip deleted dependence.

Fri Dec 12 18:54:23 1997  Per Bothner  <>

	* expr.c (expand_builtin): Support BUILT_IN_FMOD - just call fmod.

Fri Dec 12 01:19:48 1997  Jason Merrill  <>

	* flow.c (flow_analysis): Be consistent with find_basic_blocks in
	determining when a new basic block starts.

	* alpha/osf2or3.h (LIB_SPEC): Restore missing defn.

	* (iorsi3): Add missing args to *_operand calls.

	* except.c (call_get_eh_context): Don't mess with sequences.
	(emit_eh_context): Include the call in the sequence here.

1997-12-11  Paul Eggert  <>

	* collect2.c (write_c_file_glob): Allocate initial frame object
	in static storage and pass its address.

Thu Dec 11 23:33:48 1997  Jason Merrill  <>

	* except.c (call_get_eh_context): Don't take a parm.
	Put the call at the top of the function.
	(emit_eh_context): Adjust.
	(get_eh_context): Replace with former use_eh_context.
	(get_eh_context_once, get_saved_pc_ref): Remove.
	(start_eh_unwinder, end_eh_unwinder, emit_unwinder): Remove.
	* except.h: Adjust.
	* integrate.c (expand_inline_function): Adjust.
	* toplev.c (rest_of_compilation): Don't call emit_unwinder.

Fri Oct 10 17:58:31 1997  Marc Lehmann  <>

	* i386/xm-go32.h (EXECUTABLE_SUFFIX): Define.

Thu Dec 11 23:55:17 1997  Manfred Hollstein  <>

	* fixincludes (strlen,strspn,strcspn return value): Handle different
	layout on sysV88.
	(hypot): Provide a fake for hypot which is broken on

Thu Dec 11 23:50:17 1997  John F. Carr  <>

	* tree.c, tree.h: Change tree_code_type, tree_code_length, and
	tree_code_name from pointers to arrays.
	* tree.c: Remove standard_tree_code_* variables, no longer used.
	* print-tree.c: Remove declaration of tree_code_name.

	* cp/lex.c (init_lex): Update for tree_code_* changes.
	* objc/objc-act.c (init_objc): Likewise.

	* tree.def, cp/cp-tree.def, objc/objc-tree.def: Update for tree_code

Thu Dec 11 23:34:54 1997  Fred Fish  <>

	* config.sub: Add support for BeOS target.
	* Likewise.
	* ginclude/stdarg.h: Likewise.
	* ginclude/stddef.h: Likewise.
	* ginclude/varargs.h: Likewise.
	* rs6000/beos.h: New file for BeOS.
	* rs6000/t-beos: Likewise.
	* rs6000/x-beos: Likewise.
	* rs6000/xm-beos.h: Likewise.
	* toplev.c (get_run_time): Just return 0 on BeOS.

Thu Dec 11 23:25:23 1997  Jeffrey A Law  (
			  Toon Moene  (

	* m68k.h (GO_IF_LEGITIMATE_ADDRESS): No longer cater to horribly
	old and broken Sun3 assemblers.  Newer versions handle large
	offsets correctly as does the GNU assembler.

Thu Dec 11 23:06:48 1997  H.J. Lu  (

	* objc/objc-act.c (lang_report_error_function): Disable.
	* objc/objc-parse.y: Include "output.h".
	(yyerror): Remove redundant decl.
	(yyprint): Fix prototype.
	(apply_args_register_offset): Remove redundant decl.
	(get_file_function_name): Likewise.

Thu Dec 11 22:02:10 1997  Jason Merrill  <>

	* flow.c (find_basic_blocks): A CALL_INSN that can throw starts
	a new basic block.
	(find_basic_blocks_1): Likewise.

Thu Dec 11 21:08:48 1997  Jason Merrill  <>

	* except.c (use_eh_context): Don't copy_rtx a REG.
	(emit_throw): Lose old unwinder support.
	(expand_internal_throw): Likewise.
	* libgcc2.c (struct eh_context): Likewise.
	(new_eh_context): Likewise.
	(__get_eh_info): Lose redundant cast.
	(__get_dynamic_handler_chain): Likewise.
	(__get_saved_pc): Lose.
	Lose all old unwinder support code.

Thu Dec 11 20:42:18 1997  Teemu Torma  <>

	Thread-safe EH support for pthreads, DCE threads and Solaris threads.

	* integrate.c (expand_inline_function): If the inline fn uses eh
	context, make sure that the current fn has one.
	* toplev.c (rest_of_compilation): Call emit_eh_context.
	* except.c (use_eh_context): New fn.
	(get_eh_context_once): New fn.
	(call_get_eh_context): New fn.
	(emit_eh_context): New fn.
	(get_eh_context): Call either get_eh_context_once or
	call_get_eh_context, depending on what we have.
	(get_dynamic_handler_chain): Call get_eh_context_once.
	* except.h: Prototypes for fns above.
	* optabs.c (get_eh_context_libfunc): Removed.
	(init_optabs): Don't initialize it.
	* expr.h (get_eh_context_libfunc): Removed.
	* rtl.h, rtl.c: New reg_note REG_EH_CONTEXT.
	* config/pa/pa.h (CPP_SPEC): Support for -threads.
	* config/pa/pa-hpux10.h (LIB_SPEC): Likewise.
	New multilib for -threads.
	* config/sparc/t-sol2: Added multilibs for -threads and
	made -pthreads alias to it.
	* config/sparc/sol2.h (CPP_SPEC, LIB_SPEC):
	Added -threads and -pthreads options.
	* libgcc-thr.h: New file.
	* libgcc2.c (__get_cpp_eh_context): Removed.
	(struct cpp_eh_context): Removed.
	(struct eh_context): Replaced cpp_eh_context with generic language
	specific pointer.
	(__get_eh_info): New function.
	(__throw): Check eh_context::info.
	(__sjthrow): Likewise.
	* libgcc2.c: Include libgcc-thr.h.
	(new_eh_context, __get_eh_context,
	eh_pthread_initialize, eh_context_initialize, eh_context_static,
	eh_context_specific, eh_context_free): New functions.
	(get_eh_context, eh_context_key): New variables.
	(__sjthrow, __sjpopnthrow, __eh_pcnthrow, __throw): Use
	get_eh_context to get the context.
	(longjmp): Move the declaration inside
	* frame.c: Include libgcc-thr.h.
	(object_mutex): Mutex to protect the object list.
	(find_fde, __register_frame, __register_frame_table,
	__deregister_frame): Hold the lock while accessing objects.
	* except.h (get_eh_context): Declare.
	* except.c (current_function_ehc): Define.
	(current_function_dhc, current_function_dcc): Removed.
	(get_eh_context): New function.
	(get_dynamic_handler_chain): Use get_eh_context.
	(get_saved_pc_ref): Likewise.
	(get_dynamic_cleanup_chain): Removed references to
	(save_eh_status, restore_eh_status): Save and restore
	current_function_ehc instead.
	* optabs.c (get_eh_context_libfunc): New variable.
	(init_optabs): Initialize it.
	* expr.h: Declare get_eh_context_libfunc.
	* function.h (struct function): Replaced dhc and dcc with ehc.
	* except.c (get_saved_pc_ref): New functions.
	(eh_saved_pc_rtx, eh_saved_pc): Deleted.
	(expand_internal_throw_indirect): Use get_saved_pc_ref() instead
	of eh_saved_pc.
	(end_eh_unwinder): Likewise.
	(init_eh): Remove initialization of eh_saved_pc.
	* optabs.c (get_saved_pc_libfunc): New variable.
	(init_optabs): Initialize it.
	* expr.h: Declare get_saved_pc_libfunc.
	* except.h (eh_saved_pc_rtx): Deleted.
	(get_saved_pc_ref): Declared.

	From Scott Snyder <>:
	* libgcc2.c (__get_saved_pc): New.
	(__eh_type, __eh_pc): Deleted.
	(__eh_pcnthrow): Use __get_saved_pc() instead of __eh_pc.
	(__get_dynamic_handler_chain): Move __dynamic_handler_chain inside
	this fcn.

Thu Dec 11 17:23:48 1997  John F. Carr  <>

	* sparc/sol2.h: Use 64 bit multiply and divide functions in
	as 0.

	* rtl.h (global_rtl): New variable, replacing separate variables for
	commonly used rtl.
	(const_int_rtx): Now array of rtx_def, not rtx.
	* emit-rtl.c: Update for new rtl data structures.
	* genattrtab.c: Define global_rtl.

Thu Dec 11 15:50:29 1997  David Edelsohn  <>

	* ({rs6000,powerpc}-*-*): Enable Haifa scheduler by

Wed Dec 10 12:30:18 1997  Anthony Green  <>

	* crtstuff.c (__do_global_ctors): Fix typo.

Tue Dec  9 09:43:59 1997  Manfred Hollstein  <>

	* toplev.c (main): Check HAVE_GETRLIMIT and HAVE_SETRLIMIT in addition
	to RLIMIT_STACK to see if we can call getrlimit and setrlimit.

Tue Dec  9 09:38:58 1997  David Edelsohn  <>

	* rs6000.h (FUNCTION_ARG_PADDING): Define.
	* rs6000.c (function_arg_padding): New function.

Tue Dec  9 10:34:21 1997  Manfred Hollstein  <>

	* m68k.c: Include tree.h only once.

Tue Dec  9 09:32:33 1997  Richard Kenner  <>

	* integrate.c (save_for_inline_copying): Make a new reg_parm_stack_loc.

Tue Dec  9 01:16:06 1997  Jeffrey A Law  (

	* Partially cleaned up prototyping code from HJ.
	* tree.h: Add many prototypes.
	* haifa-sched.c (haifa_classify_insn): Renamed from classify_insn.
	All references changed.
	* rtl.h: Protect from multiple inclusions.  Add many prototypes.

Tue Dec  9 01:15:15 1997  Fred Fish  <>

	* libgcc2.c (string.h): Hoist inclusion to occur before first use of
	string functions like strlen.

Tue Dec  9 00:57:38 1997  Manfred Hollstein  <>

	* Check for functions getrlimit and setrlimit.
	* cccp.c (main): Check HAVE_GETRLIMIT and HAVE_SETRLIMIT in addition
	to RLIMIT_STACK to see if we can call getrlimit and setrlimit.

Mon Dec  8 23:53:26 1997  Jay Sachs  <>

	* (compare*): Handle losing behavior from 4.4bsd make.

Mon Dec  8 21:03:28 1997  Richard Henderson  <>

	* alpha.c (REG_RA, alpha_return_addr, output_epilog):
	Fix merge problems.

	* alpha.c (override_options): Don't know about scheduling for EV6.
	* (ev5 function units): Don't overload as ev6.

	* alpha.c (alpha_adjust_cost): Simplify.  Fix typo in ev5 mult case.
	* (define_attr type): Add mvi.
	(ev5_e0): Define sceduling parameters for it.
	(TARGET_MAX insns): Type is mvi not shift.

Mon Dec  8 18:15:00 1997  Richard Henderson  <>

	* alpha/win-nt.h (TRAMPOLINE_TEMPLATE): Fix backported gcc-2.8 bug.

Mon Dec  8 21:17:28 1997  J"orn Rennecke  <>

	* cstamp-h, auto-config.h: Delete.

Sun Dec  7 19:19:03 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

Sat Dec  6 22:22:22 1997  Jeffrey A Law  (

	* cccp.c: Fix typo brought over in merge.

	* Merge in changes from gcc-2.8.

Mon Nov  3 05:45:32 1997  Philippe De Muyter  <>

	* m68k.c: Include tree.h for dwarf2out_cfi_label.

	* gcc.c (process_command): Do not take address of function fatal when
	calling lang_specific_driver.

Sat Dec  6 01:02:38 1997  Mumit Khan  <>

	* config/i386/cygwin32.h (DWARF2_UNWIND): Exception handling
	doesn't work with it yet, so set it to 0.
	* config/i386/xm-cygwin32.h (NO_SYS_SIGLIST): Define.

Sat Dec  6 01:01:02 1997  Christian Iseli  <>

	* cse.c (cse_insn): Check for invalid entries when taking references.

Fri Dec  5 18:26:25 1997  J"orn Rennecke  <>

	* loop.c (invariant_p): Don't test flag_rerun_loop_opt.
	(loop_optimize, scan_loop, strength_reduce): New argument unroll_p.
	* toplev.c (rest_of_compilation): Pass it.  Remove code to
	save / clear / restore flag_unroll_{,all_}loops.

Fri Dec  5 16:26:03 1997  Bernd Schmidt  <crux@ohara.Informatik.RWTH-Aachen.DE>

	* i386.c (notice_update_cc): Remove bogus pentium GCC code.

Fri Dec  5 16:25:14 1997  Jeffrey A Law  (

	* stmt.c (warn_if_unused_value): Don't warn for TRY_CATCH_EXPR.

Thu Dec  4 11:51:00 1997  Jason Merrill  <>

	* except.c (get_dynamic_handler_chain): Only make the call once per

	* except.c (expand_end_all_catch): Fix for sjlj exceptions.

Thu Dec  4 12:30:40 1997  J"orn Rennecke  <>

	* sh.c (final_prescan_insn): Use local label prefix
	when emitting .uses pseudo-ops.

Wed Dec  3 12:01:56 1997  Jason Merrill  <>

	* libgcc2.c (__throw): Use __builtin_return_addr instead of __eh_pc.
	* except.c: Lose outer_context_label_stack.
	(expand_eh_region_end): Rethrow from outer_context here.
	(expand_fixup_region_end): Let expand_eh_region_end do the rethrow.
	(expand_internal_throw): Take no args.
	(expand_internal_throw_indirect): Lose.
	(expand_leftover_cleanups, expand_start_all_catch): Use expand_rethrow.
	(expand_start_all_catch): Start a rethrow region.
	(expand_end_all_catch): End it.
	(expand_rethrow): New fn.
	* except.h: Reflect above changes.
	* flow.c: Revert change of Nov 27.

Thu Dec  4 00:24:09 1997  Jeffrey A Law  (

	* i386/t-sol2 (CRTSTUFF_T_CFLAGS): Turn on the optimizer.

Wed Dec  3 12:01:56 1997  Jason Merrill  <>

	* except.c (expand_fixup_region_end): New fn.
	(expand_fixup_region_start): Likewise.
	(expand_eh_region_start_tree): Store cleanup into finalization here.
	* stmt.c (expand_cleanups): Use them to protect fixups.

Wed Dec  3 11:41:13 1997  Gavin Koch  <>

	* mips/ (muldi3_r4000): Broaden the output template
	and attribute assignments to handle three operand dmult;
	rename to muldi3_internal2.
	(muldi3): Call the new muldi3_internal2 for R4000, and
	any GENERATE_MULT3 chip.

Tue Dec  2 19:40:43 1997  Jason Merrill  <>

	* stmt.c (expand_decl_cleanup): Update thisblock after eh_region_start.

Tue Dec  2 12:54:33 1997  Jim Wilson  <>

	* unroll.c (find_splittable_givs): Remove last change.  Handle givs
	with a dest_reg that was created by loop.

Sat Nov 29 12:44:57 1997  David Edelsohn  <>

	* rs6000.c (function_arg_partial_nregs): Undo Nov. 26 patch.

	* rs6000/aix41.h (ASM_CPU_SPEC): Define.

Fri Nov 28 10:00:27 1997  Jeffrey A Law  (

	* Fix NCR entries.

Thu Nov 27 12:20:19 1997  Jeffrey A Law  (

	* flow.c (find_basic_blocks): Handle cfg issues for rethrows and
	nested exceptions correctly.

	* unroll.c (find_splittable_givs): Don't split givs with a dest_reg
	that was created by loop.

Thu Nov 27 09:34:58 1997  Jason Merrill  <>

	* expr.c (preexpand_calls): Don't look past a TRY_CATCH_EXPR.

	* except.c (expand_start_all_catch): One more do_pending_stack_adjust.

Wed Nov 26 15:47:30 1997  Michael Meissner  <>

	* rs6000.c (SMALL_DATA_REG): Register to use for small data relocs.
	(print_operand): Use SMALL_DATA_REG for the register involved in
	small data relocations.
	(print_operand_address): Likewise.

	* rs6000/linux.h (LINK_SPEC): Pass -dynamic-linker /lib/ if
	-dynamic linker is not used.

	* (call insns): For local calls, use @local suffix under
	System V.  Don't use @plt under Solaris.

	* rs6000.c (output_function_profiler): Put label address in r0, and
	store LR in 4(sp) for System V/eabi.

	* rs6000.h (ASM_OUTPUT_REG_{PUSH,POP}): Keep stack aligned to 16
	byte boundary, and maintain stack backchain.

Tue Nov 25 14:08:12 1997  Jim Wilson  <>

	* (fix_truncdfsi2, fix_truncsfsi2, fix_truncdfdi2,
	fix_truncsfdi2): Change *.

Wed Nov 26 11:12:26 1997  Jason Merrill  <>

	* toplev.c (main): Complain about -gdwarfn.

Tue Nov 25 22:43:30 1997  Jason Merrill  <>

	* dwarfout.c (output_type): If finalizing, write out nested types
	of types we've already written.

Tue Nov 25 20:32:24 1997  Michael Meissner  <>

	(patches originally from Geoffrey Keating)
	* rs6000.c (function_arg): Excess floating point arguments don't
	go into GPR registers after exhausting FP registers under the
	System V.4 ABI.
	(function_arg_partial_nregs): Likewise.

	* (call insns): If -fPIC or -mrelocatable, add @plt
	suffix to calls.

Tue Nov 25 23:37:27 1997  Jason Merrill  <>

	* integrate.c (output_inline_function): Just unset DECL_INLINE.

Tue Nov 25 23:33:29 1997  scott snyder  <>

	* dwarf2out.c (outout_call_frame_info): Ensure that the info has
	proper alignment.

	* libgcc2.c (__throw): Initialize HANDLER.

Tue Nov 25 14:08:12 1997  Jim Wilson  <>

	* (fix_truncdfsi2, fix_truncsfsi2, fix_truncdfdi2,
	fix_truncsfdi2): Change *X to ?*X.

Tue Nov 25 10:00:42 1997  Richard Henderson  (

	* alpha.h (CONST_OK_FOR_LETTER): Fix 'L' handling.

Tue Nov 25 10:00:42 1997  Jeffrey A Law  (

	* crtstuff.c (do_global_dtors_aux): Handle multiple calls better.

Tue Nov 25 01:26:55 1997  Bruno Haible  <>

	* dwarf2out.c (ASM_OUTPUT_DWARF_DELTA1): Implement.

Mon Nov 24 22:41:55 1997  Jason Merrill  <>

	* except.c (get_dynamic_handler_chain): Build up a FUNCTION_DECL.
	* optabs.c (init_optabs): Lose get_dynamic_handler_chain_libfunc.
	* expr.h: Likewise.

Sat Nov 22 18:58:20 1997  Jeffrey A Law  (

	* pa-hpux10.h (NEW_HP_ASSEMBLER): Define.
	* pa.h (LEGITIMATE_CONSTANT_P): Reject LABEL_REFs if not using
	gas and not using the new HP assembler.

Fri Nov 21 15:20:05 1997  Jeffrey A Law  (

	* (program_transform_cross_name): Clean up "-e" confusion.

Fri Nov 21 19:37:40 1997  Andrew Cagney  <>

	* config/mips/elf64.h (MULTILIB_DEFAULTS): Test for
	TARGET_ENDIAN_DEFAULT == zero instead of testing for macro

Fri Nov 21 12:49:56 1997  Bruno Haible  <>

	* stmt.c (expand_end_bindings): Allow jump into block with cleanups.

Fri Nov 21 12:18:51 1997  Jason Merrill  <>

	* except.h: Add outer_context_label_stack.
	* except.c: Likewise.
	(expand_start_all_catch): Push the outer_context for the try block
	onto outer_context_label_stack.
	(expand_end_all_catch): Use it and pop it.

Fri Nov 21 10:13:11 1997  Robert Lipe  (

	* i386/sco5.h (HAVE_ATEXIT): Revert last change.

Thu Nov 20 16:11:50 1997  Richard Henderson  <>

	* alpha.c (alpha_emit_set_const_1): Handle narrow hosts better.

Thu Nov 20 16:11:50 1997  Klaus Kaempf  <>

	* alpha/vms.h (ASM_OUTPUT_ADDR_VEC_ELT): Add an L for the local label
	to correspond with the change to ASM_GENERATE_INTERNAL_LABEL.

Thu Nov 20 14:42:15 1997  Jason Merrill  <>

	* (LIB2FUNCS): Remove C++ memory management support.
	* libgcc2.c: Remove __builtin_new, __builtin_vec_new, set_new_handler,
	__builtin_delete, and __builtin_vec_delete.

	* except.c (output_exception_table): Don't bother with

Thu Nov 20 16:11:50 1997  Jeffrey A Law  (

	* (pre_stwm, post_stwm, pre_ldwm, post_ldwm): Base register
	is an in/out operand.
	(zero extended variants of stwm/stwm patterns): Similarly.

	* mips/x-iris (FIXPROTO_DEFINES): Add -D_SGI_SOURCE.

Thu Nov 20 13:19:32 1997  Jason Merrill  <>

	* dwarf2out.c (ASM_OUTPUT_DWARF_OFFSET4): Rename from VALUE4.
	Use assemble_name.
	(output_call_frame_info): Emit a \n after using it.

Thu Nov 20 00:38:46 1997  Dave Love  <>

	* Add AC_ARG_ENABLE for Haifa as documentation.

Wed Nov 19 12:03:04 1997  Philippe De Muyter  <>

	* dwarf2out.c (CIE_LENGTH_LABEL, FDE_LENGTH_LABEL): New macros.
	(output_call_frame_info): Do not output forward label differences
	* m68k/mot3300.h (SET_ASM_OP): Define when not using gas.

Tue Nov 18 23:03:30 1997  J"orn Rennecke  <>

	* (attribute "type"): Add nil.
	(movsi_ie): y/y alternative is type nil.
	(movsf_ie): Replace ry/yr/X alternative by r/y/X , y/r/X and y/y/X
	(movsf_ie+1): Delete.

Tue Nov 18 15:39:59 1997  Jim Wilson  <>

	* mips/mips.c (save_restore_insns): If gp_offset or fp_offset are
	large_int, emit two insns instead of one splitable insn.
	* dwarf2out.c (dwarf2out_frame_debug): When set cfa_store_offset
	from cfa_temp_value, use cfa_offset.  Add assert checking that
	cfa_reg is SP.

Mon Nov 17 15:35:38 1997  Tom Tromey  <>

	* cccp.c (deps_output): Properly quote file names for make.

Mon Nov 17 13:21:40 1997  Jeffrey A Law  (

	* t-h8300 (MULTILIB_EXCEPTIONS): Define.

Fri Nov  7 15:33:11 1997  Robert Lipe  (

	* i386/sco5.h (HAVE_ATEXIT): Delete definition.

Sun Nov 16 23:52:48 1997  Jeffrey A Law  (

	* cse.c (cse_insn): Don't look at JUMP_LABEL field of a conditional
	(cse_end_of_basic_block): Similarly.

Sun Nov 16 23:01:40 1997  J. Kean Johnston  <>

	* i386/sco5.h (ASM_OUTPUT_ALIGNED_BSS): Define.
	(LIBGCC_SPEC, LIB_SPEC): Do the right thing for PIC.

Sun Nov 16 22:47:03 1997  Manfred Hollstein  <>

	* (compare, compare-lean): Define $stage for each
	shell command.
	(gnucompare, gnucompare-lean): Likewise.

Sun Nov 16 22:02:16 1997  Richard Henderson  (

	* alpha/win-nt.h (TRAMPOLINE_TEMPLATE): Fix offsets.

	* alpha.h (ASM_OUTPUT_ADDR_DIFF_ELT): Add an L for the local label
	to correspond with the change to ASM_GENERATE_INTERNAL_LABEL.

Fri Nov 14 09:09:20 1997  Fred Fish  (

	* dwarfout.c (byte_size_attribute): Add local var upper_bound
	and add case to handle STRING_TYPE.
	* dwarfout.c (output_string_type_die): Fix code to generate
	correct string length attribute for fixed length strings.
	Still needs support for varying length strings.

Fri Nov 14 08:46:56 1997  Jeffrey A Law  (

	* toplev.c (get_run_time): Do something sensible for cygwin32.

Fri Nov 14 07:24:20 1997  Richard Henderson  <>

	* expr.c (expand_builtin_setjmp): Set
	* stupid.c (stupid_life_analysis): If has_nonlocal_label, kill
	call-saved registers across calls.

	* (exception_receiver): Remove.
	(nonlocal_goto_receiver_osf): New.
	(nonlocal_goto_receiver_vms): Renamed from nonlocal_goto_receiver.
	(nonlocal_goto_receiver): New, select _osf or _vms.

	* alpha.c (output_prolog [*]): Prefix entry labels with '$' to
	keep them from being propagated to the object file.
	(alpha_write_linkage): Likewise.
	* (call_vms): Likewise.
	(call_value_vms): Likewise.
	(unnamed osf call insns): Likewise.

	* alpha.h (ASM_OUTPUT_INTERNAL_LABEL): Don't omit L from local label.

	* alpha.c (call_operand): Any reg is valid for WinNT.
	* (call_nt, call_value_nt): Don't force address into $27.
	(anon nt calls): Add 'R' alternative.
	INITIALIZE_TRAMPOLINE): Handle lack of original $27 and 32-bit ptrs.

Fri Nov 14 06:59:33 1997  Jeffrey A Law  (

	* calls.c (expand_call): Handle pcc_struct_value correctly for C++.

	* i386/xm-cygwin32.h (HAVE_FILE_H, HAVE_RUSAGE): Delete defines.
	* i386/xm-mingw32.h (HAVE_FILE_H, HAVE_RUSAGE): Likewise.
	* rs6000/xm-cygwin32.h (HAVE_FILE_H, HAVE_RUSAGE): Likewise.

Thu Nov 13 20:37:33 1997  Michael Meissner  <>

	* reload1.c (new_spill_reg): Improve fixed or forbidden register
	spill error message.

Thu Nov 13 20:29:08 1997  Kaveh R. Ghazi  <>

	* prefix.c: Use stdarg.h only ifdef __STDC__.  Otherwise,
	use varargs.h.  Wrap header with <>, not "".

Thu Nov 13 20:21:17 1997  Jeffrey A Law  (

	* integrate.c (save_for_inline_copying): Add return value from

Thu Nov 13 19:12:33 1997  Brendan Kehoe  <>

	* fixincludes: Be a little more restrictive on what we will
	substitute to replace definitions of MAXINT for HPUX.

Thu Nov 13 18:41:02 1997  Michael Meissner  <>

	* dbxout.c (dbxout_symbol_location): Don't assume that variables
	whose address is the stack or argument pointers are indirect

1997-11-13  Paul Eggert  <>

	* cccp.c, cpplib.c (compare_defs):
	Don't complain about arg name respellings unless pedantic.
	* cpplib.c (compare_defs): Accept pfile as new arg.
	All callers changed.

Thu Nov 13 23:33:50 1997  J"orn Rennecke  <>

	* fold-const.c (fold_truthop): Fix bug in last change.

1997-11-13  Paul Eggert  <>

	Fix some confusion with IEEE minus zero.

	* real.h (REAL_VALUES_IDENTICAL): New macro.

	* expr.c (is_zeros_p): Don't consider -0.0 to be all zeros.
	* fold-const.c (operand_equal_p): Don't consider -0.0 to be
	identical to 0.0.
	* tree.c (simple_cst_equal): Don't consider -0.0 to have the
	same tree structure as 0.0.

	* varasm.c (immed_real_const_1): Use new REAL_VALUES_IDENTICAL
	macro instead of doing it by hand.

Thu Nov 13 16:56:14 1997  Jeffrey A Law  (

	* v850/lib1funcs.asm: Minor whitespace changes.
	* v850.c: Fix minor formatting problems in many places.
	(construct_restore_jr, construct_save_jarl): Remove unwanted aborts.

Thu Nov 13 12:53:44 1997  Jim Wilson  <>

	* mips.h (GO_IF_LEGITIMATE_ADDRESS): Delete code swapping xplus0 and
	xplus1 when xplus0 is not a register.

Thu Nov 13 11:41:42 1997  Jeffrey A Law  (

	* flow.c (find_basic_blocks): During marking phase, if we encounter
	an insn with a REG_LABEL note, make the target block live and
	create an edge from the insn to the target block.  Do not make
	edges from all blocks to the target block.

	* m68k/x-next (OTHER_FIXINCLUDES_DIRS): Include /NextDeveloper/Headers.

	* Tweak NCR entries.
	* configure: Rebuilt.

Thu Nov 13 11:07:41 1997  Michael Meissner  <>

	* rs6000.c (num_insns_constant): Use REAL_VALUE_FROM_CONST_DOUBLE to
	pick apart floating point values, instead of using CONST_DOUBLE_LOW

	* (define_splits for DF constants): Use the appropriate
	REAL_VALUE_* interface to pick apart DF floating point constants in
	a machine independent fashion.

Thu Nov 13 00:06:58 1997  J"orn Rennecke  <>

	* fold-const.c (fold_truthop): When changing a one-bit comparison
	against zero into a comparison against mask, do a proper sign

Wed Nov 12 09:37:01 1997  Jeffrey A Law  (

	* except.c: Do not include "assert.h".
	(save_eh_status): Turn asserts into conditional aborts.
	(restore_eh_status, scan_region): Likewise.
	* dwarfout.c: Do not include "assert.h".
	(bit_offset_attribute): Turn asserts into conditional aborts.
	(bit_size_attribute, output_inlined_enumeration_type_die): Likewise.
	(output_inlined_structure_type_die): Likewise.
	(output_inlined_union_type_die): Likewise.
	(output_tagged_type_instantiation): Likewise.
	(dwarfout_file_scope_decl): Likewise.
	* dwarf2out.c: Do not include "assert.h"
	(expand_builtin_dwarf_reg_size): Turn asserts into conditional aborts.
	(reg_save, initial_return_save, dwarf2out_frame_debug): Likewise.
	(add_child_die, modified_type_die, add_bit_offset_attribute): Likewise.
	(add_bit_size_attribute, scope_die_for): Likewise.
	(output_pending_types_for_scope): Likewise.
	(get_inlined_enumeration_type_die): Likewise.
	(get_inlined_structure_type_die): Likewise.
	(get_inlined_union_type_die, gen_subprogram_die): Likewise.
	(gen_tagged_type_instantiation_die): Likewise.

	* flow.c (find_basic_blocks): Refine further to get a more correct
	cfg, especially in the presense of exception handling, computed
	gotos, and other non-trivial cases.  Call abort if an inaccuracy
	is detected in the cfg.

Tue Nov 11 21:47:27 1997  J"orn Rennecke  <>

	* glimits.h (SHRT_MIN): Define in a way suitable for 16 bit hosts.

	* c-lex.c (whitespace_cr, skip_white_space_on_line): New functions.
	(skip_white_space): Use whitespace_cr.
	(check_newline): Handle whitespace more consistently.

Tue Nov 11 16:25:49 1997  Jim Wilson  <>

	* i386/cygwin32.h (CPP_PREDEFINES): Delete -DPOSIX.
	* i386/xm-cygwin32.h (POSIX): Define.

Mon Nov 10 20:53:11 1997  Gavin Koch  <>

	* config/mips/mips.h (MASK_DEBUG_H): Set to zero, so this bit
	is available elsewhere.

Mon Nov 10 16:21:58 1997  Doug Evans  <>

	* sparc/ (mov[sdt]f_const_insn): Fix condition to match
	what the instruction can handle.

Mon Nov 10 03:02:19 1997  Jason Merrill  <>

	* stmt.c (expand_decl_cleanup_no_eh): New fn.

	* except.c (expand_leftover_cleanups): do_pending_stack_adjust.

Mon Nov 10 00:05:56 1997  Jeffrey A Law  (

	* alias.c (MAX_ALIAS_LOOP_PASSES): Define.
	(init_alias_analysis): Break out of loops after MAX_ALIAS_LOOP_PASSES.

Sun Nov  9 14:34:47 1997  David Edelsohn  <>

	* (lshrdi3_power): Delete '&' from first alternative and
	swap instruction order.

Sun Nov  9 02:07:16 1997  Jeffrey A Law  (

	* fixinc.svr4 (__STDC__): Add another case.

Sun Nov  9 02:00:29 1997  J"orn Rennecke  <>

	* a29k.h (ELIGIBLE_FOR_EPILOGUE_DELAY): Avoid loads from varying
	addresses in the epilogue delay slot.

Sun Nov  9 01:40:40 1997  Manfred Hollstein  (

	* m88k/dgux.h (ASM_CPU_SPEC): Reformatted to suppress wrong whitespace
	in generated `specs' file.

Sun Nov  9 01:37:11 1997  Jim Wilson  (

	* flags.h (flag_rerun_loop_opt): Declare.
	* loop.c (invariant_p, case LABEL_REF): Check flag_rerun_loop_opt.
	* toplev.c (flag_rerum_loop_opt): Delete static.

Sat Nov  8 18:20:21 1997  J"orn Rennecke  <>

	Bring over from FSF:

	Thu Oct 30 12:21:06 1997  J"orn Rennecke  <>

	* va-sh.h (__va_arg_sh1): Define.
	(va_arg): Use it.
	SH3E doesn't use any integer registers for subsequent arguments
	once a non-float value was passed in the stack.
	* sh.c (machine_dependent_reorg): If optimizing, put explicit
	alignment in front label for ADDR_DIFF_VEC.
	* sh.h (PASS_IN_REG_P): Fix SH3E case.
	(ADJUST_INSN_LENGTH): If not optimizing, add two extra bytes length.

	Tue Oct 28 15:06:44 1997  J"orn Rennecke  <>

	* sh/elf.h (PREFERRED_DEBUGGING_TYPE): Undefine before including

	Mon Oct 27 16:11:52 1997  J"orn Rennecke  <>

	* sh.c (machine_dependent_reorg): When -flag_delayed_branches,
	put an use_sfunc_addr before each sfunc.
	* (use_sfunc_addr, dummy_jump): New insns.
	(casesi): For TARGET_SH2, emit a dummy_jump after LAB.

	Tue Oct 21 07:12:28 1997  J"orn Rennecke  <>

	* sh/elf.h (PREFERRED_DEBUGGING_TYPE): Don't redefine.

Fri Nov  7 10:22:24 1997  Jason Merrill  <>

	* frame.c (add_fdes, count_fdes): Go back to checking pc_begin for
	linked once FDEs.

Wed Nov  5 14:26:05 1997  Jeffrey A Law  (

	* alias.c (find_base_value): Only return the known base value for
	pseudo registers.

Wed Nov  5 11:27:14 1997  Jim Wilson  <>

	* i386.c (load_pic_register): Call prologue_get_pc_and_set_got.
	* (prologue_set_got, prologue_get_pc): Add UNSPEC_VOLATILE
	to pattern.
	(prologue_get_pc_and_set_got): New pattern.

Tue Nov  4 20:36:50 1997  Richard Henderson  (

	* alpha.c (summarize_insn): Handle ASM_OPERANDS.  Don't recurse
	for SUBREG, just fall through.

	* alpha.c (alpha_handle_trap_shadows): Init sum.defd to zero.

	* (attr trap): Make TRAP_YES nonzero for sanity's sake.

Tue Nov  4 18:49:42 1997  Jeffrey A Law  (

	* fixincludes: Fix "hypot" prototype in NeXT math.h.

	* (USE_ALLOCA): Always include alloca.o.
	(USE_HOST_ALLOCA): Likewise.

	* rtl.def (CODE_LABEL): Use separate fields for LABEL_NUSES
	and LABEL_REFS fields.
	* rtl.h (LABEL_REFS): Update.

Tue Nov  4 16:55:11 1997  Jim Wilson  <>

	* combine.c (try_combine): When setting elim_i2, check whether newi2pat
	sets i2dest.  When calling distribute_notes for i3dest_killed, pass
	elim_i2 and elim_i1.  When setting elim_i1, check if newi2pat
	sets i1dest.

	* (insv, extzv, extv): Add change_address call.
	(movsi_ulw, movsi_usw): Change QImode to BLKmode in pattern.

	* integrate.c (save_for_inline_copying): Copy parm_reg_stack_loc.

	* reload.c (find_reloads, case 'm' and 'o'): Reject HIGH constants.

	* mips.c (mips_expand_epilogue): Emit blockage insn before call to
	save_restore_insns if no FP and GP will be restored.

	* dwarf2out.c (expand_builtin_dwarf_reg_size): New variable mode.
	Convert CCmode to word_mode before calling GET_MODE_SIZE.

	* acconfig.h (HAVE_INTTYPES_H): Undef.
	* (inttypes.h): Check for conflicts between sys/types.h
	and inttypes.h, and verify that intmax_t is defined.
	* config/mips/x-iris (CC, OPT, OLDCC): Comment out.
	* config/mips/x-iris3: Likewise.

Tue Nov  4 16:07:15 1997  Jeffrey A Law  (

	* alias.c (find_base_value): When copying arguments, return the
	tentative value for a hard register.

Tue Nov  4 13:40:35 1997  Doug Evans  <>

	* c-lex.c (MULTIBYTE_CHARS): #undef if cross compiling.
	(yylex): Record wide strings using target endianness, not host.

Tue Nov  4 13:13:12 1997  Jeffrey A Law  (

	* mn10200.h (ASM_OUTPUT_BSS): Delete.
	* mn10300.h (ASM_OUTPUT_BSS): Delete.
	* v850.h (ASM_OUTPUT_BSS): Delete.

Tue Nov  4 00:55:48 1997  J"orn Rennecke  <>

	* profile.c (branch_prob): Insert an insn after a NOTE_INSN_SETJMP.

Mon Nov  3 14:36:50 1997  Jeffrey A Law  (

	* (sco5): Use cpio to install header files.

Sun Nov  2 23:31:43 1997  Manfred Hollstein  <>

	* aclocal.m4 (conftestdata_from, conftestdata_to): Names shortened to
	14 char length.
	* configure: Rebuild.

Sun Nov  2 19:44:00 1997  Robert Lipe  (

	* i386/sco5.h: Enable -gstabs once again.

Sun Nov  2 19:27:21 1997  Jeffrey A Law  (

	* arm.c (output_move_double): Allocate 3 entries in otherops array.

Sat Nov  1 21:43:00 1997  Mike Stump  <>

	* except.c (expand_eh_region_start_for_decl): Emit EH_REGION_BEG
	notes for sjlj exceptions too.
	(expand_eh_region_end): Similarly for EH_REGION_END notes.
	(exception_optimize): Optimize EH regions for sjlj exceptions too.
	* final.c (final_scan_insn): Don't output labels for EH REGION
	notes if doing sjlj exceptions.

Sat Nov  1 19:15:28 1997  Jeffrey A Law  (

	* alias.c (init_alias_analysis): Handle -fno-alias-check when
	optimizing correctly.

	* expr.c (expand_builtin_setjmp): Don't emit a SETJMP note
	or set current_function_calls_setjmp anymore.

	* flow.c (find_basic_blocks): If we delete the label for an
	exception handler, remove it from the EH label list and remove
	the EH_BEGIN/EH_END notes for that EH region.

Sat Nov  1 16:44:49 1997  Jason Merrill  (

	* flow.c (find_basic_blocks): Generate correct flow control
	information when exception handling notes are present.

Sat Nov  1 13:42:19 1997  Jeffrey A Law  (

	* dwarf2out.c (output_call_frame_info): Fix length argument
	(output_die, output_pubnames, output_line_info): Likewise.

Fri Oct 31 07:10:09 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

	* dwarf2out.c (output_call_frame_info): Use ASM_OUTPUT_ASCII to
	output ASCII by default.  Only use ASM_OUTPUT_DWARF_STRING if
	flag_debug_asm is on.
	(output_die, output_pubnames, output_line_info): Likewise.

	* alias.c (init_alias_analysis): Add struct_value_incoming_rtx
	and static_chain_rtx into the potential base values array if
	they are registers.

	* alias.c (new_reg_base_value): New array of potential base values.
	(unique_id): Now file scoped static.
	(find_base_value, case REG): Return the value in reg_base_value
	array for the REG if it exists.  Else, return the value from
	new_reg_base_value if copying args and REG is a hard register.
	(find_base_value, case PLUS): If either operand of the PLUS is
	a REG, try to get its base value.  Handle base + index and
	index + base.
	(record_set): Use new_reg_base_value instead of reg_base_value.
	(init_alias_analysis): Allocate space for new_reg_base_value too.
	Rework code to iterate over the insns propagating base value
	information until nothing changes.

	* global.c (global_alloc): Free the conflict matrix after
	reload has finished.

Fri Oct 31 01:45:31 1997  Jason Merrill  <>

	* libgcc2.c (L_eh): Define __eh_pc.
	Replace __eh_type with generic pointer __eh_info.

Fri Oct 31 00:34:55 1996  J"orn Rennecke  <>

	* expr.c (expand_increment): When enqueing a postincrement for a MEM,
	use copy_to_reg if address is not a general_operand.

Fri Oct 31 00:16:55 1997  J"orn Rennecke  <>

	* profile.c (output_func_start_profiler): Clear flag_inline_functions
	for the duration of the call to rest_of_compilation.

Thu Oct 30 14:40:10 1997  Doug Evans  <>

	* (sparc-*-elf*): Use sparc/elf.h, sparc/t-elf.
	Set extra_parts.
	(sparc*-*-*): Recognize --with-cpu=v9.
	* sparc/elf.h: New file.
	* sparc/t-elf: New file.

Thu Oct 30 13:26:12 1997  Jeffrey A Law  (

	* mn10300.c (const_8bit_operand): New function.
	(mask_ok_for_mem_btst): New function.
	* (btst patterns with mem operands): Use new functions
	to avoid creating btst instructions with invalid operands.

Wed Oct 29 16:57:19 1997  Michael Meissner  <>

	* rs6000/xm-sysv4.h: Include xm-linux.h instead of xm-svr4.h if we
	are running on PowerPC Linux.

Wed Oct 29 13:10:11 1997  Gavin Koch  <>

	* config/mips/elf64.h (PREFERRED_DEBUGGING_TYPE): Only define
	if not previously defined.

Tue Oct 28 23:55:27 1997  Doug Evans  (

	* function.c (assign_parms): Correct mode of stack_parm if
	entry_parm underwent a mode conversion.

1997-10-28  Brendan Kehoe  <>

	* global.c (global_alloc): Use xmalloc instead of alloca for
	CONFLICTS, since max_allocno * allocno_row_words alone can be more
	than 2.5Mb sometimes.

Tue Oct 28 15:29:15 1997  Richard Henderson  <>

	* reload1.c (eliminate_regs [SET]): If [SUBREG] widened the mode of
	DEST for the spill, adjust mode of SRC to compensate.

Tue Oct 28 14:36:45 1997  Richard Henderson  <>

	* (reload_inqi): Check for MEM before strict_memory_address_p,
	since any_memory_operand() allows pseudos during reload.
	(reload_inhi, reload_outqi, reload_outhi): Likewise.

Tue Oct 28 11:53:14 1997  Jim Wilson  <>

	* (btst patterns): Add 5200 support.

Tue Oct 28 11:58:40 1997  Toon Moene  <>

	* fold-const.c (fold): For ((a * C1) / C3) or (((a * C1) + C2) / C3)
	optimizations, look inside dividend to determine if the expression
	can be simplified by using EXACT_DIV_EXPR.

Tue Oct 28 10:19:01 1997  Jason Merrill  <>

	From Brendan:
	* dwarf2out.c (output_call_frame_info): Use l1 instead of ".".

Tue Oct 28 00:32:14 1997  Richard Henderson  <>

	* alpha.c (summarize_insn [SUBREG]): Propagate SET.

Mon Oct 27 23:59:26 1997  Richard Henderson  <>

	* alpha.c (alpha_handle_trap_shadows): Don't call get_attr_trap
	on a CLOBBER.

Mon Oct 27 21:25:20 1997  Richard Henderson  <>

	* (movqi, movhi): Make sure new insns created during reload
	won't need reloading themselves.
	(reload_inqi, reload_inhi, reload_outqi, reload_outhi): Likewise.

Mon Oct 27 16:11:10 1997  Jeffrey A Law  (

	* mn10300.h (GO_IF_LEGITIMATE_ADDRESS): Disable reg+reg.

Sun Oct 26 13:50:44 1997  Richard Henderson  <>

	* alpha.c (alpha_sa_mask [VMS]): Don't include $26 in the mask.
	Patch from Klaus Kaempf <>.

Sun Oct 26 13:31:47 1997  Jim Wilson  (

	* expr.c (expand_expr, case INDIRECT_REF): Optimize a reference
	to an element in a constant string.

Sun Oct 26 11:41:49 1997  Jason Merrill  <>

	* dwarf2out.c (output_call_frame_info): The CIE pointer is now a 32
	bit PC-relative offset.  The exception range table pointer is now in
	the CIE.
	* frame.c (dwarf_cie, dwarf_fde): Rename CIE_pointer to CIE_delta.
	(count_fdes, add_fdes, get_cie): Adjust.
	(cie_info, extract_cie_info, __frame_state_for): Adjust eh_ptr uses.

	From H.J. Lu:
	* frame.c (count_fdes, add_fdes): Skip linked once FDE entries.

Sun Oct 26 11:52:01 1997  Richard Henderson  <>

	* alias.c (memrefs_conflict_p): Treat arg_pointer_rtx just
	like stack_pointer_rtx.

Sun Oct 26 11:32:16 1997  Manfred Hollstein  <>

	* (bootstrap-lean): Combined with `normal' bootstrap
	targets using "$@" to provide support for similar but not identical
	targets without having to duplicate code.
	(bootstrap4): New goal.

	* (compare, compare-lean, compare3): Combined to one
	ruleset determining actions to be performed via $@.
	(compare4, compare4-lean): New targets.
	(gnucompare, gnucompare3): Combined to one ruleset determining
	actions to be performed via $@. Also, note which files failed
	the comparison test in .bad_compare.
	(gnucompare-lean, gnucompare3-lean, gnucompare4-lean): New targets.

Sun Oct 26 10:06:11 1997  Toon Moene  <>

	* fold-const (fold): Also simplify FLOOR_DIV_EXPR to EXACT_DIV_EXPR
	if the dividend is a multiple of the divisor.

Sun Oct 26 09:21:40 1997  Jeffrey A Law  (

	* (LIBGCC2_CFLAGS): Add -fexceptions.

	* alias.c (find_base_term): Handle PRE_INC, PRE_DEC, POST_INC,
	and POS_DEC.

	* alias.c (true_dependence): Fix typo.

	* toplev.c (flag_rerun_loop_opt): New variable.
	(f_options): Handle -frerun-loop-opt.
	(rest_of_compilation): If -frerun-loop-opt, then run the loop
	optimizer twice.
	(main): Enable -frerun-loop-opt by default for -O2 or greater.

	* loop.c (simplify_giv_expr): Adding two invariants results
	in an invariant.

Sun Oct 26 09:15:15 1997  Richard Henderson  <>

	* expr.c (get_inner_reference): Remove the array bias after
	converting the index to Pmode.

Sat Oct 25 12:20:58 1997  Jeffrey A Law  (

	* mn10300.h (TARGET_SWITCHES): Add -mmult-bug and -mno-mult-bug.
	* (mulsi3): Handle TARGET_MULT_BUG.

Fri Oct 24 17:40:34 1997  Jeffrey A Law  (

	* mn10200.c (indirect_memory_operand): Delete unused function.
	* mn10200.h (EXTRA_CONSTRAINT): Handle 'R'.
	* (bset, bclr insns): Handle output in a reg too.

Fri Oct 24 15:54:57 1997  Richard Henderson  <>

	* (call patterns): Revert Oct 16 change; if we are to elide
	the callee's ldgp, we must do it ourselves, and we use the jsr tag
	for more than scheduling.

Fri Oct 24 13:23:04 1997  Doug Evans  <>

	* sparc/sparc.h (ASM_SPEC): Delete asm_arch.

Fri Oct 24 13:19:40 1997  Jeffrey A Law  (

	* mn10300.c (symbolic_operand, legitimize_address): New functions.
	* mn10300.h (LEGITIMIZE_ADDRESS): Call legitimize_address.
	(GO_IF_LEGITIMATE_ADDRESS): Don't allow base + symbolic.

Thu Oct 23 09:35:12 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

Thu Oct 23 08:03:59 1997  J"orn Rennecke  <>

	* dbxout.c (dbxout_start_new_source_file): Use output_quoted_string

Wed Oct 22 00:34:12 1997  Jeffrey A Law  (

	* toplev.c (flag_exceptions): Default value is 2.
	(compile_file): If flag_exceptions still has the value 2, then
	set it to 0.

	* rs6000.c (struct machine_function): Add pic_offset_table_rtx.
	(rs6000_save_machine_status): Save pic_offset_table_rtx.
	(rs6000_restore_machine_status: Restore pic_offset_table_rtx.

	* local-alloc.c (block_alloc): Don't lose if two SCRATCH expressions
	are shared.

	* (*movsi_got_internal_mem): New pattern.
	(*movsi_got_internal_mem splitter): New define_split.

Tue Oct 21 18:14:03 1997  Jim Wilson  <>

	* obstack.h (obstack_empty_p): Fix spurious space after backslash.

Tue Oct 21 18:34:01 1997  Geoffrey KEATING  <>

	* rs6000.c: Avoid creating a stack frame under SYSV ABI if we
	only need to save LR.

Tue Oct 21 10:06:40 1997  Jeffrey A Law  (

	* (movqi, movhi): Avoid using address registers as
	destinations unless absolutely necessary.

	* mn10200.c (expand_prologue): Fix typo.

	* mn10200.h (GO_IF_LEGITIMATE_ADDRESS): Do not allow indexed
	* (neghi2): Provide an alternative which works if
	the input and output register are the same.

	* mn10300.c (print_operand): Handle 'S'.
	* (ashlsi3, lshrsi3, ashrsi3): Use %S for
	shift amount in last alternative.

	* mn10300.c (expand_epilogue): Rework to handle register restores
	in "ret" and "retf" instructions correctly.

Mon Oct 20 16:47:08 1997  Jim Wilson  <>

	* expmed.c (extract_bit_field): Don't make flag_force_mem disable
	extzv for memory operands.

	* cse.c (simplify_ternary_operation, case IF_THEN_ELSE): Collapse
	redundant conditional moves to single operand.

Mon Oct 20 15:30:26 1997  Nick Clifton  <>

	* v850.h: Move define of __v850__ from CPP_PREDEFINES

	* xm-v850.h: Use __v850 rather than __v850__ to
	identify v850 port.

Mon Oct 20 14:15:02 1997  Jim Wilson  <>

	* mips/mips.c (compute_frame_size): Not a leaf function if
	profile_flag set.

Mon Oct 20 14:16:38 1997  Geoffrey KEATING  <>

	* rs6000/t-ppccomm: Use -msdata=none for crtstuff.

Mon Oct 20 12:28:17 1997  Doug Evans  <>

	* sparc/sparc.h (SPARC_V9,SPARC_ARCH64): Delete.
	(DEFAULT_ARCH32_P): New macro.
	(TARGET_ARCH{32,64}): Allow compile time or runtime selection.
	(enum cmodel): Declare.
	(sparc_cmodel_string,sparc_cmodel): Declare.
	(SPARC_DEFAULT_CMODEL): Provide default.
	(TARGET_CM_MEDMID): New macro.
	(CPP_PREDEFINES): Take out stuff now handled by %(cpp_arch).
	(CPP_SPEC): Rewrite.
	(CPP_ARCH{,32,64,_DEFAULT}_SPEC): New macros.
	(ASM_ARCH{,32,64,_DEFAULT}_SPEC): New macros.
	(ASM_SPEC): Add %(asm_arch).
	(EXTRA_SPECS): Rename cpp_default to cpp_cpu_default.
	Rename asm_default to asm_cpu_default.
	Add cpp_arch32, cpp_arch64, cpp_arch_default, cpp_arch, cpp_endian,
	cpp_subtarget, asm_arch32, asm_arch64, asm_arch_default, asm_arch.
	({PTRDIFF,SIZE}_TYPE): Provide 32 and 64 bit values.
	(MASK_INT64,MASK_LONG64): Delete.
	(MASK_ARCH64): Renamed to MASK_64BIT.
	(TARGET_SWITCHES): Always provide 64 bit options.
	(ARCH64_SWITCHES): Delete.
	(TARGET_OPTIONS): New option -mcmodel=.
	(INT_TYPE_SIZE): Always 32.
	(INIT_EXPANDERS): sparc64_init_expanders renamed to sparc_init_....
	* sparc/linux-aout.h (CPP_PREDEFINES): Take out stuff handled by
	* sparc/linux.h: Likewise.
	* sparc/linux64.h (SPARC_V9,SPARC_ARCH64): Delete.
	(CPP_PREDEFINES): Take out stuff handled by CPP_SPEC.
	(ASM_SPEC): Add %(asm_arch).
	* sparc/sol2.h (CPP_PREDEFINES): Take out stuff handled by CPP_SPEC.
	(TARGET_CPU_DEFAULT): Add ultrasparc case.
	* sparc/sp64-aout.h (SPARC_V9,SPARC_ARCH64): Delete.
	* sparc/sp64-elf.h (SPARC_V9,SPARC_ARCH64): Delete.
	(TARGET_DEFAULT): MASK_ARCH64 renamed to MASK_64BIT.  Delete
	(ASM_SPEC): Add %(asm_arch).
	* sparc/splet.h (CPP_SPEC): Delete.
	* sparc/sysv4.h (CPP_PREDEFINES): Take out stuff handled by CPP_SPEC.
	(BLOCK_PROFILER): Likewise.
	* sparc/sparc.c (sparc_cmodel_string,sparc_cmodel): New globals.
	(sparc_override_options): Handle code model selection.
	(sparc_init_expanders): Renamed from sparc64_init_expanders.
	* sparc/ TARGET_<code_model> renamed to TARGET_CM_....
	(sethi_di_embmedany_{data,text}): Renamed from sethi_di_medany_....
	(sethi_di_fullany): Delete.

Mon Oct 20 02:00:18 1997  Klaus Kaempf  <>
			  Jeff Law  <>
			  Richard Kenner  <>

	* alpha/vms.h (DIVSI3_LIBCALL): OTS$ functions are upper case.
	* alpha/ (arg_home): Likewise.

	* alpha/alpha.c (vmskrunch): Delete.
	* alpha.c (output_prolog, VMS): Use alloca for entry_label and don't
	truncate to 64 characters.

	* Support openVMS/Alpha.

	* Fix to work on openVMS/Alpha and openVMS/VAX.

Sun Oct 19 19:00:35 1997  J"orn Rennecke  <>

	* longlong.h (count_leading_zeros): Add missing casts to USItype.

Sun Oct 19 18:44:06 1997  Jeffrey A Law  (

	* i386/bsd386.h (ASM_COMMENT_START): Define.

Sat Oct 18 13:47:15 1997  Jason Merrill  <>

	* tree.c (restore_tree_status): Also free up temporary storage
	when we finish a toplevel function.
	(dump_tree_statistics): Print stats for backend obstacks.

Sat Oct 18 12:47:31 1997  Doug Evans  <>

	* expr.c (use_group_regs): Don't call use_reg for MEMs.

Sat Oct 18 09:49:46 1997  Jason Merrill  <>

	* libgcc2.c (__throw): Don't copy the return address.
	* dwarf2out.c (expand_builtin_dwarf_reg_size): Ignore return address.

	* except.c (exceptions_via_longjmp): Initialize to 2 (uninitialized).
	* toplev.c (main): Initialize exceptions_via_longjmp.

	* tree.c: Add extra_inline_obstacks.
	(save_tree_status): Use it.
	(restore_tree_status): If this is a toplevel inline obstack and we
	didn't want to save anything on it, recycle it.
	(print_inline_obstack_statistics): New fn.
	* function.c (pop_function_context_from): Pass context to
	* obstack.h (obstack_empty_p): New macro.

Sat Oct 18 00:43:59 1997  Jeffrey A Law  (

	* i386/freebsd.h (ASM_COMMENT_START): Fix.

Fri Oct 17 23:48:52 1997  Jim Wilson  (

	* v850.c (ep_memory_offset): New function.
	(ep_memory_operand, substitute_ep_register, v850_reorg): Call it.

	* v850.h (CONST_OK_FOR_*): Add and correct comments.
	(CONSTANT_ADDRESS_P): Add comment.
	* Add comments on bit field instructions.
	(addsi3): Delete &r/r/r alternative.  Add r/r/U alternative.
	(lshrsi3): Use N not J constraint.

	* (v850_tst1+1): New define_split for tst1 instruction.

	* v850.c (reg_or_0_operand): Call register_operand.
	(reg_or_int5_operand): Likewise.
	* v850.h (MASK_BIG_SWITCH, TARGET_BIG_SWITCH): New macros.
	(TARGET_SWITCHES): Add "big-switch".
	(CASE_DROPS_THROUGH): Comment out.
	* (cmpsi): Delete compare mode.
	(casesi): New pattern.

	* v850.h (CONST_OK_FOR_N): Delete redundant compare against zero.
	* (ashlsi3): Use SImode not QImode for shift count.
	(lshrsi3): Likewise.

	* v850.c (print_operand): Add 'c', 'C', and 'z' support.  Delete
	unreachable switch statement after 'b' support.  Remove "b" from
	strings for 'b' support.
	* (branch_normal, branch_invert): Change %b to b%b.

Fri Oct 17 23:33:20 1997  Jeffrey A Law  (

	* (LIBGCC2_CFLAGS): Avoid a backslash then an
	empty line if @inhibit_libc@ is empty.

Fri Oct 17 23:24:40 1997  Robert Lipe  (

	* i386/sco5.h: Let ELF use dwarf2 unwinding.  COFF uses sjlj.
	(DWARF2_UNWIND_INFO): Let this track object file format.
	(EXTRA_SECTIONS): Add in_eh.

Fri Oct 17 17:13:42 1997  David S. Miller  <>

	* sparc/linux64.h (LINK_SPEC): Dynamic linker is
	* sparc/sparc.h (FUNCTION_PROFILER): Fix format string when
	* sparc/sparc.c (dwarf2out_cfi_label): Extern no longer needed.
	(output_double_int): Output DI mode values correctly when
	(output_fp_move_quad): If TARGET_V9 and not TARGET_HARD_QUAD, use
	fmovd so it works if a quad float ends up in one of the upper 32
	float regs.
	* sparc/ (pic_{lo_sum,sethi}_di): New patterns
	necessary for PIC support on sparc64.

Fri Oct 17 13:39:56 1997  Doug Evans  <>

	* sparc/sp64-elf.h (TARGET_DEFAULT): Delete MASK_STACK_BIAS.
	* sparc/sparc.h (PROMOTE_MODE): Promote small ints if arch64.
	(SPARC_FP_ARG_FIRST): New macro.
	(CONDITIONAL_REGISTER_USAGE): All v9 fp regs are volatile now.
	(NPARM_REGS): There are 32 fp argument registers now.
	(FIRST_PARM_OFFSET): Update to new v9 abi.
	(REG_PARM_STACK_SPACE): Define for arch64.
	(enum sparc_arg_class): Delete.
	(sparc_arg_count,sparc_n_named_args): Delete.
	(struct sparc_args): Redefine and use for arch32 as well as arch64.
	(doublemove_string): Declare.
	* sparc/sparc.c (sparc_arg_count,sparc_n_named_args): Delete.
	(single_move_string): Use GEN_INT, and HOST_WIDE_INT.
	(doublemove_string): New function.
	(output_move_quad): Clean up some of the arch64 support.
	(compute_frame_size): Add REG_PARM_STACK_SPACE if arch64.
	Don't add 8 bytes of reserved space if arch64.
	(sparc_builtin_saveregs): Combine arch32/arch64 versions.
	(init_cumulative_args): New function.
	(function_arg_slotno): New static function.
	(function_arg,function_arg_partial_nregs): New functions.
	(function_arg_{pass_by_reference,advance}): New functions.
	(function_arg_padding): New function.
	* ginclude/va-sparc.h: Rewrite v9 support.

Fri Oct 17 12:29:48 1997  Christian Iseli  <>

	* regclass.c (record_address_regs): Look at REG_OK_FOR_{BASE,INDEX}_P
	for hard regs to determine base and index registers.

	* reload.c (debug_reload_to_stream): New function.  Specify stream
	into which to write debug info.
	(debug_reload): Modify to call debug_reload_to_stream with stderr.

Thu Oct 16 15:07:51 1997  Richard Henderson  <>

	* combine.c (can_combine_p): Don't combine with an asm whose
	output is a hard register.

Thu Oct 16 15:43:26 1997  Mike Stump  <>

	* c-decl.c (start_struct): Ensure that structs with forward
	declarations are in fact packed when -fpack-struct is given.

	* stor-layout.c (layout_record): Ignore STRUCTURE_SIZE_BOUNDARY if
	we are packing a structure.  This allows a structure with only
	bytes to be aligned on a byte boundary and have no padding on a

Thu Oct 16 15:17:54 1997  Richard Kenner  <>

	* rs6000.h (ROUND_TYPE_ALIGN): Don't blow up if no fields in record.

Thu Oct 16 11:20:30 1997  Richard Henderson  <>

	* alpha.c (alpha_return_addr_rtx): New variable.
	(alpha_save_machine_status): New; save it.
	(alpha_restore_machine_status): New; restore it.
	(alpha_init_expanders): New; clear it.
	(alpha_return_addr): New; set it.
	(alpha_ra_ever_killed): New; if alpha_return_addr_rtx, regs_ever_live
	is overly conservative, so search the insns explicitly.
	(alpha_sa_mask [VMS]): Check alpha_ra_ever_killed.
	(alpha_sa_size [VMS && !VMS]): Likewise.
	* alpha.h (RETURN_ADDR_RTX): Call alpha_return_addr.
	(INIT_EXPANDERS): New definition.

	* alpha.c: Move REG_PV, REG_RA somewhere more visible in the file.
	(output_prolog [!VMS]): Use them.

	* alpha.c (output_prolog [!VMS]): Move gp detection to ...
	(alpha_does_function_need_gp): ... a new function.  Refine the
	CALL_INSN test to just TYPE_JSR.
	* (most call insns): Fix some jsr/ibr type transpositions.

Thu Oct 16 09:36:47 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

Wed Oct 15 21:38:18 1997  Richard Kenner  <>

	* pa.c (move_operand): Respect -mdisable-indexing.
	* pa.h (GO_IF_LEGITIMATE_ADDRESS): Likewise.

Wed Oct 15 21:34:45 1997  David Edelsohn  <>

	* (udivsi3, divsi3): Split into MQ and non-MQ cases for
	(umulsidi3,umulsi3_highpart): Likewise.
	(smulsi3_highpart_no_mq): Add !TARGET_POWER.

Wed Oct 15 18:21:46 1997  Richard Henderson  <>

	* alpha.c (final_prescan_insn): Gut, remove and transform to ...
	(alpha_handle_trap_shadows): ... a new function.  Handle the entire
	function in one go.  Emit RTL for trapb, instead of printf directly.
	(alpha_reorg): New function.  Call alpha_handle_trap_shadows.
	(trap_pending): Kill global variable.
	(output_epilog): Don't call final_prescan_insn.
	(struct shadow_summary): Elide $31 and $f31; now it fits in a word.
	* alpha.h (FINAL_PRESCAN_INSN): Remove.
	* (jsr patterns with trapb): Stupid and useless.  Kill.
	(trapb): New insn.

Wed Oct 15 18:16:05 1997  Richard Henderson  <>

	Tune Haifa scheduler for Alpha:
	* alpha.h (ISSUE_RATE): Define.
	* alpha.c (alpha_adjust_cost): Handle EV5 mult delay; don't apply
	EV4 adjustments to EV5.
	* Remove all scaling from function unit delays.  Rework
	EV5 function units to match the CPU.
	(umuldi3_highpart): EV5 added the IMULH insn class.

Wed Oct 15 17:42:41 1997  Jeffrey A Law  (

	* pa.c (following_call): Fail if the CALL_INSN is an indirect

Tue Oct 14 12:01:00 1997  Mark Mitchell  <>

	* cplus-dem.c (demangle_signature): Don't look for return types on
	constructors.  Handle member template constructors.

Tue Oct 14 11:30:29 1997  Jason Merrill  <>

	* tree.c (expr_tree_cons, build_expr_list, expralloc): New fns.
	* tree.h: Declare them.

Fri Oct 10 13:46:56 1997  Doug Evans  <>

	* Handle --with-newlib.
	* (LIBGCC2_CFLAGS): Add @inhibit_libc@.

	* sparc/t-sp64 (LIBGCC2_CFLAGS): Delete.

Wed Oct  8 14:37:44 1997  Jeffrey A Law  (

	* config/ptx4.h: Fix typo.

Wed Oct  8 08:57:20 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

Tue Oct  7 16:27:34 1997  Manfred Hollstein  <>

	* aclocal.m4: Substitute INSTALL.
	* configure: Re-built.

Tue Oct  7 15:37:35 1997  Jeffrey A Law  (

	* integrate.c (save_for_inline_copying): Avoid undefined pointer
	(expand_inline_function): Likewise.

	* dwarf2out.c (output_call_frame_info): Reinstate last change
	using flag_debug_asm check instead of flag_verbose_asm.

Tue Oct  7 12:57:26 1997  Jim Wilson  <>

	* dwarf2out.c (output_call_frame_info): Remove last change.

1997-10-04  Andreas Schwab  <>

	* frame.c (__frame_state_for): Execute the FDE insns until the
	current pc value is strictly bigger than the target pc value.

Tue Oct  7 11:00:42 1997  Jason Merrill  <>

	* regclass.c (init_reg_modes): If we can't find a mode for the
	register, use the previous one.

Tue Oct  7 10:55:34 1997  Richard Henderson  <>

	* haifa-sched.c (print_block_visualization): Call fprintf directly,
	don't sprintf through an alloca'ed buffer.

Tue Oct  7 10:52:29 1997  Thomas Koenig  (

	* reload.c (decompose): Always initialize val.base.

Tue Oct  7 10:19:26 1997  Manfred Hollstein  (

	* m68k/mot3300.h (ASM_OUTPUT_ALIGN): Accept any alignment
	instead of aborting.
	* dwarf2out.c (output_call_frame_info): Call app_enable and
	app_disable to let GNU as accept the generated comments.

Tue Oct  7 11:41:21 1997  Michael Meissner  <>

	* tree.h (get_file_function_name): Add declaration.
	* dwarf2out.c (output_call_frame_info): No need to cast
	get_file_function_name call anymore.
	* profile.c (toplevel): Remove get_file_function_name
	* c-lang.c (finish_file): Likewise.

Tue Oct  7 10:01:45 1997  Chip Salzenberg  <>

	* (program_transform_name): Let autoconf substitute
	the correct value.

Tue Oct  7 09:54:35 1997  Jeffrey A Law  (

	* haifa-sched.c (schedule_block): If the first real insn in a
	block has any special notes attached to it, remove them.

Tue Oct  7 09:48:51 1997  Richard Henderson  <>

	* alpha.h (FLOAT_STORE_FLAG_VALUE): It's 2.0 not 0.5.

Mon Oct  6 12:47:32 1997  Manfred Hollstein  (

	* m88k.c (m88k_begin_prologue): Remove superfluous backslash.

Mon Oct  6 12:04:24 1997  Jeffrey A Law  (

	* (check-g77): New test target.
	(CHECK-TARGETS): Add check-g77.

Fri Oct  3 11:56:36 1997  Jason Merrill  <>

	* toplev.c (rest_of_compilation): Defer all non-nested inlines.

Fri Oct  3 15:49:27 1997  Michael Meissner  <>

	* flow.c (print_rtl_with_bb): Cast alloca return value for

Thu Oct  2 21:15:03 1997  Richard Henderson  <>

	* i386.h (RETURN_ADDR_RTX): New definition that works for
	__builtin_return_address(0) and -fomit-frame-pointer.

Wed Oct  1 13:43:53 1997  Jim Wilson  <>

	Bring over from FSF.
	Tue Aug  5 16:10:45 1997  Jason Merrill  <>

	* mips.c (function_arg): Handle passing a struct
	containing a double in a DFmode register without the PARALLEL.

Wed Oct  1 11:13:25 1997  Ian Lance Taylor  <>

	* pexecute.c: Use spawn if __CYGWIN32__.

	* pexecute.c: Include "config.h" first, as per autoconf manual
	(from Paul Eggert  <>).

Wed Oct  1 01:44:36 1997  Philippe De Muyter  <>

	* m68k/x-mot3300 (XCFLAGS): Disable as's long/short jump
	optimization for f/expr.o and f/stb.o.

Tue Sep 30 23:48:57 1997  Jeffrey A Law  (

	* cse.c (this_insn_cc0_mode): Initialize.

Tue Sep 30 23:09:40 1997  Thomas Koenig  <>

	* cccp.c (expand_to_temp_buffer): Initialize all members of obuf.

	* haifa-sched.c (get_block_head_tail): Remove unneeded initialization.

Tue Sep 30 23:06:43 1997  Richard Henderson  <>

	* (beq): For registers and ints 0-255, use cmpeq+bne, since
	that pair will dual-issue on the 21164 and plus+beq won't.
	(bne): Likewise for cmpeq+beq.

Tue Sep 30 16:07:58 1997  Jim Wilson  <>

	* except.c (find_exception_handler_labels): Correct argument to free.

Tue Sep 30 11:00:00 1997  Brendan Kehoe  <>

	* except.c (find_exception_handler_labels): Free LABELS when we're

Mon Sep 29 14:04:35 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

Mon Sep 29 10:51:53 1997  Jason Merrill  <>

	* flow.c (find_basic_blocks): Mark calls as potentially jumping
	to the EH labels.

Mon Sep 29 09:58:06 1997  Jeffrey A Law  (

	* Substitute for "install" too.
	* configure: Rebuilt.

Mon Sep 29 00:38:42 1997  Aaron Jackson  <>

	* (bootstrap-lean, compare-lean): New targets.

Mon Sep 29 00:18:16 1997  Richard Henderson  (

	* alias.c (base_alias_check): Two symbols can conflict if they
	are accessed via AND.
	(memrefs_conflict_p): Likewise.

	* alpha.h (SETUP_INCOMING_VARARGS): Emit a blockage insn
	after flushing argument registers to the stack.

	* (mostlyclean): Remove .regmove files.

Sun Sep 28 18:59:58 1997  Jason Merrill  <>

	* libgcc2.c (__throw): Fix thinko.

Sun Sep 28 12:00:52 1997  Mark Mitchell  <>

	* cplus-dem.c (demangle_template): Add new parameter.  Handle new
	template-function mangling.
	(consume_count_with_underscores): New function.
	(demangle_signature): Handle new name-mangling scheme.

Sun Sep 28 01:55:04 1997  Philippe De Muyter  <>

	* flow.c (print_rtl_with_bb): Cast alloca return values for variables
	start and end.

Sun Sep 28 01:05:16 1997  Jeffrey A Law  (

	* frame.c: Remove last change.
	* dwarf2.h: Remove last change.
	* tree.h: Add declarations of DWARF2 unwind info support

Sat Sep 27 11:02:38 1997  Jason Merrill  <>

	* c-decl.c (init_decl_processing): Add __builtin_dwarf_reg_size.
	* tree.h (built_in_function): Likewise.
	* expr.c (expand_builtin): Likewise.
	* except.h: Likewise.
	* dwarf2out.c (expand_builtin_dwarf_reg_size): New fn.
	* libgcc2.c (copy_reg): New fn.
	(__throw): Use it.

Fri Sep 26 08:54:59 1997  Paul Eggert  <>

	* c-typeck.c (build_binary_op): Warn about comparing signed vs
	unsigned if -W is specified and -Wno-sign-compare is not.
	* c-decl.c (warn_sign_compare): Initialize to -1.
	(c_decode_option): -Wall no longer implies -Wsign-compare.

Fri Sep 26 09:00:13 1997  Andreas Schwab  <>

	* frame.c: Include gansidecl.h for PROTO.
	* dwarf2out.c: Move inclusion of dwarf2.h down so that PROTO is
	defined.  Don't declare dwarf2out_cfi_label here.
	* dwarf2.h: Add declarations of DWARF2 unwind info support
	* m68k.c: Include dwarf2.h.
	(output_function_prologue): Add dwarf2 support.

	* integrate.c (expand_inline_function): Make sure there is at
	least one insn that can be used as an insertion point.

Wed Sep 24 21:34:06 1997  Jason Merrill  <>

	* dwarf2out.c: s/flag_verbose_asm/flag_debug_asm/

Wed Sep 24 22:05:30 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

Wed Sep 24 17:36:23 1997  Doug Evans  <>

	Bring over from FSF.

	Wed Sep 24 19:17:08 1997  Doug Evans  <>

	* sparc/ (get_pc_via_call): Renamed from get_pc_sp32.
	(get_pc_via_rdpc): Renamed from get_pc_sp64.
	* sparc/sparc.c (finalize_pic): Update call to gen_get_pc_via_call.

	Wed Sep 24 18:38:22 1997  David S. Miller  <>

	* sparc/sparc.h (ASM_CPU_SPEC): Pass -Av9a for v8plus, ultrasparc.
	(TARGET_OPTIONS): Add -malign-loops=, -malign-jumps=,
	(sparc_align_{loops,jumps,funcs}_string): Declare.
	(sparc_align_{loops,jumps,funcs}): Declare.
	(FUNCTION_BOUNDARY): Use sparc_align_funcs.
	(STACK_BIAS): Define.
	(SPARC_SIMM*_P): Cast to unsigned HOST_WIDE_INT first, then perform
	(SPARC_SETHI_P): New macro.
	* sparc/sparc.c (sparc_align_{loops,jumps,funcs}_string): New globals.
	(sparc_align_{loops,jumps,funcs}): New globals.
	(sparc_override_options): Handle -malign-loops=, -malign-jumps=,
	(move_operand): Use SPARC_SETHI_P.
	(arith_double_operand): Cast to unsigned HOST_WIDE_INT first, then
	perform test.
	(arith11_double_operand): Likewise.
	(arith10_double_operand): Likewise.
	(finalize_pic): Finish sparc64 support.
	(emit_move_sequence): Use SPARC_SETHI_P.  Simplify low part of
	64 bit constants if able.
	(output_fp_move_quad): Don't use fmovq unless TARGET_HARD_QUAD.
	(sparc_builtin_saveregs, sparc64 case): Don't save fp regs if
	* sparc/ (*): Use GEN_INT instead of gen_rtx.
	(get_pc_sp32): Use for sparc64 as well.
	(lo_sum_di_sp{32,64}): Fix handling on 64 bit hosts.
	(sethi_di_sp64_const): Likewise.
	(movtf_cc_sp64): Check TARGET_HARD_QUAD.
	(cmp_zero_extract_sp64): Use unsigned HOST_WIDE_INT in cast.
	(ashlsi3, ashldi3, ashrsi3, ashrdi3, lshrsi3, lshrdi3): Likewise.

	Tue Sep 23 19:02:46 1997  Doug Evans  <>

	* sparc/linux-aout.h (COMMENT_BEGIN): Delete.
	* sparc/linux.h (COMMENT_BEGIN): Likewise.
	* sparc/linux64.h (COMMENT_BEGIN): Likewise.

	Tue Sep 23 14:48:18 1997  David S. Miller  <>

	Add sparc64 linux support.
	* (sparc64-*-linux*): Recognize.  Add sparc/xm-sparc.h
	to xm_file list on 32-bit sparc-linux.
	* sparc/xm-sp64.h: New file.
	* sparc/linux64.h: New file.
	* sparc/xm-linux.h: Include some standard headers if not inhibit_libc.
	Don't include xm-sparc.h.
	* config/xm-linux.h (HAVE_PUTENV, HAVE_ATEXIT): Define.
	* glimits.h (LONG_MAX): Handle sparc64.

	Sat Sep 20 03:07:54 1997  Doug Evans  <>

	* sparc/sysv4.h (ASM_COMMENT_START): Delete.
	* sparc.h (ASM_COMMENT_START): Define.
	* sparc.c (output_function_prologue): Use it.
	(sparc_flat_output_function_{epi,pro}logue): Likewise.

	Wed Sep 17 15:04:19 1997  Doug Evans  <>

	* sparc/sysv4.h (ASM_OUTPUT_{FLOAT,DOUBLE,LONG_DOUBLE}): Delete,
	use sparc.h's copies.
	* sparc/sparc.h (ASM_OUTPUT_{FLOAT,DOUBLE,LONG_DOUBLE}): Print
	ascii form as well.

	Mon Sep  8 08:45:19 1997  Richard Kenner  <>

	* sparc.c (dwarf2out_cfi_label): Add declaration.
	(save_regs, output_function_prologue): Remove cast for it.
	(sparc_flat_{save_restore,output_function_prologue): Likewise.
	({save,restore}_regs): No longer inline.

Tue Sep 23 12:34:51 1997  Richard Kenner  <>

	* fold-const.c (make_range): Correctly handle cases of converting
	from unsigned to signed type.

Tue Sep 23 12:34:51 1997  Bernd Schmidt  <>

	* fold-const.c (merge_ranges): Make sure that if one range is subset
	of another, it will always be the second range.  Correct (+,-) case to
	account for this.

Tue Sep 23 08:32:51 1997  Jason Merrill  <>

	* final.c (final_end_function): Also do dwarf2 thing if
	(final_start_function): Likewise.

Tue Sep 23 01:15:50 1997  David S. Miller  <>

	* expmed.c (expand_divmod): If compute_mode is not the same as
	mode, handle the case where convert_modes() causes op1 to no
	longer be a CONST_INT.

	* reorg.c (dbr_schedule): At end of this pass, add REG_BR_PRED
	note holding get_jump_flags() calculation to all JUMP_INSNs.
	* rtl.h (enum reg_note): New note types REG_BR_PRED and REG_SAVE_AREA.
	* rtl.c (reg_note_name): Add new note types.

Tue Sep 23 00:59:54 1997  Jeffrey A Law  (

	* rtlanal.c (computed_jump_p): Fix typo in last change.

Tue Sep 23 00:42:44 1997  H.J. Lu  (

	* loop.c (indirect_jump_in_function_p): Return 0
	by default.

Tue Sep 23 00:33:55 1997  Jeffrey A Law  (

	* rs6000/xm-rs6000.h: Fix thinko in last change.
	* rs6000/xm-sysv4.h: Likewise.

Mon Sep 22 19:33:53 1997  Jim Wilson  <>

	* mips.c (save_restore_insns): Only set RTX_FRAME_RELATED_P if store_p.

Mon Sep 22 14:41:00 1997  Jeffrey A Law  (

	* reg-stack.c (find_blocks): Fix thinko in last change.

1997-09-21  Andreas Schwab  <>

	* m68k.c (output_function_prologue): Add dwarf2 support.

	INCOMING_FRAME_SP_OFFSET): New definitions.

Mon Sep 22 11:36:42 1997  David S. Miller  <>

	* combine.c (try_combine): Use NULL_RTX instead of '0' where
	appropriate in calls to gen_rtx().
	* cse.c (cse_main): Likewise.
	* emit-rtl.c (gen_label_rtx): Likewise.
	* expr.c (init_expr_once): Likewise.
	* haifa-sched.c (flush_pending_lists, sched_analyze_insn,
	sched_analyze, init_rgn_data_dependences,
	compute_block_backward_dependences): Likewise.
	* sched.c (schedule_insns): Likewise.
	* varasm.c (immed_double_const): Likewise.

	* sparc.h (INCOMING_FRAME_SP_OFFSET): Define to
	SPARC_STACK_BIAS for sake of dwarf2 on sparc64.

Mon Sep 22 11:21:33 1997  J. Kean Johnston  <>

	* i386/sco5.h: Make ELF default file format and add -mcoff/-melf..
	(ASM_SPEC, CPP_SPEC): Handle -mcoff.
	(LIBGCC_SPEC): Likewise.
	(SUBTARGET_SWITCHES): Add -mcoff and -melf.
	* i386/t-sco5 (CRTSTUFF_T_CFLAGS): Add -fPIC.
	(libgcc1-elf, libgcc2-elf, libgcc-elf targets): Delete.

Mon Sep 22 02:10:43 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

Sun Sep 21 17:45:45 1997  Jeffrey A Law  (

	* loop.c (loop_number): Delete function.  Change all references
	to use uid_loop_num array.
	* loop.h (loop_number): Delete declaration.
	* unroll.c (unroll_loop): Change "loop_number" references to
	use uid_loop_num instead.

	* loop.c (loop_unroll_factor): Move outside #ifdef HAIFA
	(loop_unroll_iter): Remove unused variable and all references.
	(loop_optimize): Always allocate and clear space for loop_unroll_factor.
	(insert_bct): Fix minor formatting problems.
	* loop.h (loop_unroll_factor): Move decl outside #ifdef HAIFA.
	(loop_unroll_iter): Removed unused decl.
	* unroll.c (unroll_loop): Remove code to set loop_unroll_iter.
	Always record the unrolling factor.

	* cse.c (simplify_relational_operation): Set h0u just like h0s.
	Similarly for h1u and h1s.

	* flow.c (jmp_uses_reg_or_mem): Deleted unused function.
	(find_basic_blocks): Use computed_jump_p to determine if a
	particular JUMP_INSN is a computed jump.
	* reg-stack.c (find_blocks): Use computed_jump_p to determine
	if a particular JUMP_INSN is a computed jump.
	* rtlanal.c (jmp_uses_reg_or_mem): New function.
	(computed_jump_p): Likewise.
	* rtl.h (computed_jump_p): Declare.
	* genattrtab.c (pc_rtx): Define and initialize.
	* loop.c (loop_optimize): Always determine if the current
	function has a computed jump.
	(indirect_jump_in_function_p): Use computed_jump_p to determine
	if a particular JUMP_INSN is a computed jump.

	* loop.c (fix_bct_param): Delete unused function.
	(check_bct_param): Likewise.

Sat Sep 20 16:22:06 1997  Jason Merrill  <>

	* frame.c (__deregister_frame): Check properly for initialized object.

Fri Sep 19 20:51:03 1997  H.J. Lu  (

	* alpha/linux.h (HANDLE_SYSV_PRAGMA): Defined.

Fri Sep 19 18:53:50 1997  J"orn Rennecke  <>

	* jump.c (thread_jumps): Check can_reverse_comparison_p before
	threading a reversed-condition jump.

	* sched.c (update_flow_info): Don't pass SCRATCH to dead_or_set_p.
	* haifa-sched.c (update_flow_info): Likewise.

Thu Sep 18 21:13:40 1997  Jeffrey A Law  (

	* (BOOT_CFLAGS): Use -O2.

	* (strtoul, bsearch): Have autoconf check for these
	* configure, Rebuilt.

	* m68k/xm-mot3300.h (alloca): Properly declare if __STDC__.
	* mips/mips.h (alloca): Likewise.
	* rs6000/xm-rs6000.h (alloca): Likewise.
	* rs6000/xm-sysv4.h: Likewise.

Thu Sep 18 14:22:22 1997  Jason Merrill  <>

	* final.c (final_scan_insn): Hand BARRIERs off to the dwarf2 code.
	* dwarf2out.c (dwarf2out_frame_debug): Pass the whole insn along.
	(dwarf2out_stack_adjust): A BARRIER resets the args space to 0.

	* except.c (end_eh_unwinder): Subtract 1 from return address.
	* libgcc2.c (__throw): Likewise.
	(find_exception_handler): Don't change PC here.  Compare end with >.

Thu Sep 18 10:43:07 1997  Nick Clifton  <>

	* v850.c (compute_register_save_size): Correct register
	* (save_interrupt, return_interrupt): Correct
	register number.
	* v850/lib1funcs.asm (save_interrupt): Correct register number.
	(return_interrupt): Use stack pointer, not element pointer.

1997-09-18  Brendan Kehoe  <>

	*, configure: Make sure to create the stage* and include
	symbolic links in each subdirectory.

Thu Sep 18 01:47:06 1997  Jeffrey A Law  (

	* (reload_peepholes): Don't allow addresses with side
	effects for the memory operand.

Wed Sep 17 18:19:53 1997  Jason Merrill  <>

	* libgcc2.c (find_exception_handler): Subtract one from our PC when
	looking for a handler, to avoid hitting the beginning of the next

	* except.c (expand_builtin_set_return_addr_reg): Use force_operand.

Wed Sep 17 18:33:59 1997  Jeffrey A Law  (

	* mips/abi64.h (LONG_MAX_SPEC): Define.
	* mips.h (LONG_MAX_SPEC): Define.
	(CPP_SPEC): Include long_max_spec.
	(EXTRA_SPECS): Include long_max_spec.

Wed Sep 17 14:11:38 1997  Jeffrey A Law  (

	* v850.c (construct_save_jarl): Fix thinko in last change.

Wed Sep 17 09:53:07 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

Tue Sep 16 14:22:36 1997  Jason Merrill  <>

	* libgcc2.c (find_exception_handler): Not found is -1.

	* integrate.c (expand_inline_function): Move expand_start_bindings
	after expanding the arguments.

Tue Sep 16 11:13:46 1997  Jim Wilson  <>

	* expr.c (expand_expr): Remove previous incorrect change.
	If target and slot has no DECL_RTL, then call mark_addressable
	again for the slot after we give it RTL.

Tue Sep 16 09:18:52 1997  Jason Merrill  (

	* expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
	again for the slot after we give it RTL.

Tue Sep 16 00:13:20 1997  Nick Clifton  <>

	* v850.c (register_is_ok_for_epilogue,
	pattern_is_ok_for_epilogue, construct_restore_jr,
	pattern_is_ok_for_prologue, construct_save_jarl): New functions.

	* v850.h (pattern_is_ok_for_prologue,
	pattern_is_ok_for_epilogue, register_is_ok_for_epilogue): New

	* Replace prologue and epilogue patterns with a
	match_parallel pattern.

Mon Sep 15 22:53:01 1997  Jeffrey A Law  (

	* aclocal.m4: Add replacement for AC_PROG_INSTALL.

Mon Sep 15 22:40:55 1997  Jim Wilson  (

	* dwarf2out.c (gen_subprogram_die): Handle redefinition of an
	extern inline function.

Mon Sep 15 22:40:55 1997  Richard Henderson  (

	* dwarf2out.c (reg_loc_descriptor): Fix prototype.
	(concat_loc_descriptor): New function.
	(loc_descriptor): Call it.
	(add_AT_location_description): Also elide the descriptor if both
	halves of a CONCAT are pseudos.
	(add_location_or_const_value_attribute): Recognize CONCAT too.

Mon Sep 15 15:24:00 1997  Richard Henderson  <>


	* alpha/alpha.c (output_prolog): New variable sa_reg.  Use it for
	out-or-range reg_offset.
	(output_epilog): Likewise.

Mon Sep 15 15:39:26 1997  Jeffrey A Law  (

	* cse.c (simplify_relational_operation): If MODE specifies a
	mode wider than HOST_WIDE_INT, then the high word of a CONST_INT
	is derived from the sign bit of the low word.

Mon Sep 15 11:43:38 1997  Jason Merrill  <>

	Support dwarf2 unwinding on PUSH_ROUNDING targets like the x86.

	* dwarf2.h: Add DW_CFA_GNU_args_size.
	* frame.c (execute_cfa_insn): Likewise.
	* dwarf2out.c (dwarf_cfi_name, output_cfi): Likewise.
	(dwarf2out_args_size, dwarf2out_stack_adjust): New fns.
	(dwarf2out_frame_debug): If this isn't a prologue or epilogue
	insn, hand it off to dwarf2out_stack_adjust.
	(dwarf2out_begin_prologue): Initialize args_size.
	* frame.h (struct frame_state): Add args_size.
	* libgcc2.c (__throw): Use args_size.
	* final.c (final_scan_insn): If we push args, hand off all insns
	to dwarf2out_frame_debug.

	* dwarf2out.c dwarf2out_frame_debug): Fix typo.
	Handle epilogue restore of SP from FP.
	* emit-rtl.c (gen_sequence): Still generate a sequence if the
	lone insn has RTX_FRAME_RELATED_P set.

	* frame.c (extract_cie_info): Handle "e" augmentation.
	* dwarf2out.c (ASM_OUTPUT_DWARF_*): Provide definitions in the
	absence of UNALIGNED_*_ASM_OP.
	(UNALIGNED_*_ASM_OP): Only provide defaults if OBJECT_FORMAT_ELF.
	(output_call_frame_info): Use "e" instead of "z" for augmentation.
	Don't emit augmentation fields length.
	(dwarf2out_do_frame): Move outside of #ifdefs.
	* defaults.h (DWARF2_UNWIND_INFO): Don't require unaligned data

	* sparc.h (UNALIGNED_INT_ASM_OP et al): Don't define here after all.
	* sparc/sysv4.h (UNALIGNED_INT_ASM_OP): Define here.
	* sparc/sunos4.h (DWARF2_UNWIND_INFO): Define to 0.
	* sparc/sun4gas.h: New file.
	* Use sun4gas.h if SunOS 4 --with-gnu-as.

	* collect2.c (write_c_file_stat, write_c_file_glob): Declare
	__register_frame_table and __deregister_frame.

1997-09-15  Brendan Kehoe  <>

	* except.c (find_exception_handler_labels): Use xmalloc instead of
	alloca, since MAX_LABELNO - MIN_LABELNO can be more than 1 million
	in some cases.

Sun Sep 14 21:01:23 1997  Jeffrey A Law  (

	* Various changes to build info files
	in the object tree rather than the source tree.

Sun Sep 14 12:24:30 1997  Jeffrey A Law  (

	* fixinc.math: New file to fix math.h on some systems.
	* (freebsd, netbsd): Use fixinc.math on these
	* configure: Rebuilt.

Sun Sep 14 11:11:05 1997  Jeffrey A Law  (

	* regmove.c (regmove_optimize): If we end up moving the
	original insn due to lifetime overlaps, make sure to move

Sat Sep 13 15:51:11 1997  Manfred Hollstein  <>

	* (INSTALL_{PROGRAM,DATA}): Use value found by configure.

Sat Sep 13 12:57:26 1997  Jeffrey A Law  (

	* haifa-sched.c (add_branch_dependences): Make each insn in
	a SCHED_GROUP_P block explicitly depend on the previous insn.

Fri Sep 12 13:49:58 1997  Jason Merrill  <>

	* except.h: Prototype dwarf2 hooks.
	* expr.c: Adjust.

Thu Sep 11 17:43:55 1997  Jim Wilson  <>

	* (native_prefix): Delete.
	(mips-dec-netbsd): Don't set prefix.
	(*linux*): Don't set prefix.

Thu Sep 11 15:48:32 1997  Fred Fish  <>

	* protoize.c: Include <varargs.h> only if HAVE_VARARGS_H is
	defined.  If not defined, include <sys/varargs.h> if
	HAVE_SYS_VARARGS_H is defined.
	* Test for varargs.h and sys/varargs.h.
	* configure: Regenerate with autoconf.
	* Regenerate with autoheader.

	* cpplib.c (quote_string): Cast first arg of sprintf call
	from "unsigned char *" to "char *".
	(output_line_command): Likewise.
	(macroexpand): Likewise.
	(do_line): Cast atoi arg from "unsigned char *" to "char *".

Wed Sep 10 21:37:30 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

	* (compare): Exit with nonzero status if there
	are comparison failures.  Note which files failed the
	comparison test in .bad_compare.

Wed Sep 10 17:05:46 1997  H.J. Lu  (

	* config/alpha/elf.h (CPP_PREDEFINES): Remove -D__PIC__ -D__pic__.

Wed Sep 10 16:37:28 1997  Fred Fish  <>

	* (LN, LN_S): New macros, use where appropriate.
	* aclocal.m4 (GCC_PROG_LN_S, GCC_PROG_LN): New tests.
	* configure: Regenerated.

Thu Sep 11 11:09:43 1997  Jeffrey A Law  (

	* loop.c (strength_reduce): Fix typo.

Wed Sep 10 16:01:15 1997  Jim Wilson  <>

	* m88k/m88k.c (struct option): Rename to struct options.
	* m88k/dolph.h (INITIALIZE_TRAMPOLINE): Delete here.
	* m88k/sysv3.h (INITIALIZE_TRAMPOLINE): Delete ifdef and comments.
	* libgcc2.c (__enable_execute_stack): Check for __sysV88__ not
	__DOLPHIN__ or sysV88.

Wed Sep 10 14:58:40 1997  Jim Wilson  <>

	* emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
	create new subreg.

Wed Sep 10 15:19:22 1997  Jeffrey A Law  (

	* config.sub: Accept 'amigados' for backward compatibility.

Wed Sep 10 14:05:08 1997  H.J. Lu  (

	* (testsuite/site.exp): New target.
	(check-gcc, check-g++): Depend on testsuite/site.exp.
	Don't stop for failure.

Wed Sep 10 12:59:57 1997  Jason Merrill  <>

	* expr.c (expand_builtin): Only support __builtin_dwarf_fp_regnum()

Wed Sep 10 11:49:20 1997  Jason Merrill  <>

	Add support for exception handling using DWARF 2 frame unwind info.
	Currently works on SPARC and MIPS, and almost on x86.

	* libgcc2.c (get_reg, put_reg, get_return_addr, put_return_addr,
	next_stack_level, in_reg_window): Helper fns.
	(__throw): Implement for DWARF2_UNWIND_INFO.

	* expr.c (expand_builtin): Handle builtins used by __throw.
	* tree.h (enum built_in_function): Add builtins used by __throw.
	* c-decl.c (init_decl_processing): Declare builtins used by __throw.
	* dwarf2out.c (expand_builtin_dwarf_fp_regnum): Used by __throw.
	* except.c (expand_builtin_unwind_init): Hook for dwarf2 __throw.
	(expand_builtin_extract_return_addr): Likewise.
	(expand_builtin_frob_return_addr): Likewise.
	(expand_builtin_set_return_addr_reg): Likewise.
	(expand_builtin_eh_stub): Likewise.
	(expand_builtin_set_eh_regs): Likewise.
	(eh_regs): Choose two call-clobbered registers for passing back values.

	* frame.c, frame.h: New files for parsing dwarf 2 frame info.
	* (LIB2ADD): New variable.  Add $(srcdir)/frame.c.
	(libgcc2.a): Use it instead of $(LIB2FUNCS_EXTRA) $(LANG_LIB2FUNCS)
	(stmp-multilib): Likewise.
	($(T)crtbegin.o, $(T)crtend.o): Add -fno-exceptions.

	* except.c: #include "defaults.h".
	(exceptions_via_longjmp): Default depends on DWARF2_UNWIND_INFO.
	(emit_throw): Don't defeat assemble_external if DWARF2_UNWIND_INFO.
	(register_exception_table_p): New fn.
	(start_eh_unwinder): Don't do anything if DWARF2_UNWIND_INFO.
	(end_eh_unwinder): Likewise.

	* crtstuff.c: Wrap .eh_frame section, use EH_FRAME_SECTION_ASM_OP,
	call __register_frame and __deregister_frame as needed.
	* varasm.c (eh_frame_section): New fn if EH_FRAME_SECTION_ASM_OP.
	* dwarf2out.c (EH_FRAME_SECTION): Now a function-like macro.  Check
	* sparc/sysv4.h (EH_FRAME_SECTION_ASM_OP): Define.
	* mips/iris6.h (EH_FRAME_SECTION_ASM_OP): Define.
	(LINK_SPEC): Add __EH_FRAME_BEGIN__ to hidden symbols.

	* dwarf2out.c (output_call_frame_info): If no support for
	EXCEPTION_SECTION, mark the start of the frame info with a
	collectible tag.
	* collect2.c (frame_tables): New list.
	(is_ctor_dtor): Recognize frame entries.
	(scan_prog_file): Likewise.
	(main): Pass -fno-exceptions to sub-compile.  Also do collection
	if there are any frame entries.
	(write_c_file_stat): Call __register_frame_table and
	__deregister_frame as needed.
	(write_c_file_glob): Likewise.

	* defaults.h (DWARF2_UNWIND_INFO): Default to 1 if supported.
	Also require unaligned reloc support.
	* sparc/sysv4.h: Not here.

	* toplev.c (compile_file): Call dwarf2out_frame_{init,finish}.
	* dwarf2out.c (dwarf2out_init): Don't call dwarf2out_frame_init.
	(dwarf2out_finish): Don't call dwarf2out_frame_finish.

	* libgcc2.c (L_eh): Reorganize, moving code shared by different
	EH implementations to the top.
	(find_exception_handler): Split out.  Start from 0.  Compare against
	end with >=.
	(__find_first_exception_table_match): Use it.
	* except.c (output_exception_table): Don't do anything if there's
	no table.  Don't output a first entry of zeroes.
	(eh_outer_context): Adjust properly.
	(add_eh_table_entry): Use xrealloc.
	* toplev.c (compile_file): Just call output_exception_table.

Wed Sep 10 11:30:36 1997  Jason Merrill  <>

	* i386.c (ix86_prologue): Add dwarf2 support for !do_rtl case.

Wed Sep 10 08:17:10 1997  Torbjorn Granlund  <>

	* except.c (eh_outer_context): Do masking using expand_and.

Wed Sep 10 01:38:30 1997  Doug Evans  <>

	Add port done awhile ago for the ARC cpu.
	* arc/arc.h: New file.
	* arc/arc.c: New file.
	* arc/ New file.
	* arc/initfini.c: New file.
	* arc/lib1funcs.asm: New file.
	* arc/t-arc: New file.
	* arc/xm-arc.h: New file.
	* ginclude/va-arc.h: New file.
	* ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
	* ginclude/varargs.h: Likewise.
	* (USER_H): Add va-arc.h.
	* (arc-*-elf*): Recognize.
	* longlong.h: Add ARC support.

Wed Sep 10 01:32:54 1997  Jeffrey A Law  (

	* expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
	when clearing non-BLKmode data.

Wed Sep 10 00:29:29 1997  Manfred Hollstein  <>

	* m88k/sysv3.h (INITIALIZE_TRAMPOLINE): Define.
	* libgcc2.c (__enable_execute_stack): Provide for sysV88 too.

	* xm-m88k.h (USG): Only define if it hasn't already been defined.

	* (risky-stage1): Delete gratuitous whitespace.

	* (clean): Delete libgcc1-test.

	* (INSTALL): cd to $(srcdir) before running texinfo.

Tue Sep  9 17:07:36 1997  Stan Cox  <>

	* m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list

Tue Sep  9 09:50:02 1997  Richard Kenner  <>

	* dwarf2out.c (output_call_frame_info): Call named_section.

Tue Sep  9 09:12:17 1997  Jeffrey A Law  (

	* haifa-sched.c (print_value): Fix last change.

Tue Sep  9 01:30:37 1997  Jason Merrill  <>

	* mips.h (DWARF_FRAME_REGNUM): Use the same numbering regardless of

Mon Sep  8 16:32:43 1997  Jason Merrill  <>

	* mips.c (function_prologue): Set up the CFA when ABI_32.

	* sparc.c (save_regs): Check dwarf2out_do_frame instead of DWARF2_DEBUG
	for dwarf2 unwind info.
	(output_function_prologue, sparc_flat_output_function_prologue): Same.

	* final.c (final_end_function): Check dwarf2out_do_frame instead
	of DWARF2_DEBUG for dwarf2 unwind info.
	(final_scan_insn): Likewise.
	(final_start_function): Likewise.  Initialize dwarf2 frame debug here.
	(final): Not here.

	* expr.c (expand_builtin_return_addr): Only SETUP_FRAME_ADDRESSES if
	count > 0.

	* varasm.c (exception_section): Check EXCEPTION_SECTION first.

Mon Sep  8 15:15:11 1997  Nick Clifton  <>

	* v850.h (ASM_SPEC): Pass on target processor.
	(CPP_PREDEFINES): Only define if not already specified.
	(TARGET_VERSION): Only define if not already specified.
	(MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
	(EXTRA_SWITCHES): Extra entries in the switches array.
	(TARGET_DEFAULT): Set default target processor.

Mon Sep  8 18:26:35 1997  Jim Wilson  <>

	cases, add %# and %/, and add : to make them into extended asms.

Sun Sep  7 23:57:50 1997  Weiwen Liu  <>

	* alias.c (init_alias_analysis): Clean up incompatible pointer
	type warning in bzero.
	* regmove.c (regmove_optimize): Likewise.
	* haifa-sched.c (find_rgns): Likewise.

	* haifa-sched.c (print_value): Clean up ptr->int cast

Sun Sep  7 23:18:32 1997  Fred Fish  <>

	* INSTALL: Change 'amigados' to 'amigaos' to match current usage.
	* install.texi (Configurations): Likewise.
	* config.sub: Likewise.

Sun Sep  7 22:56:56 1997  Weiwen Liu  (

	* (sdbout.o): Depend on insn-config.h.

Sun Sep  7 18:44:50 1997  Jim Wilson  <>

	* m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
	For 68303, 68332, cpu32, subtract MASK_68040_ONLY.

Sun Sep  7 18:30:46 1997  Jason Merrill  <>

	* dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
	prologue insn, only the first elt is significant.
	(output_call_frame_info): For exception handling, always use 4-byte
	fields as specified by the dwarf2 spec.
	Don't skip trivial FDEs.

Sun Sep  7 14:19:39 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

Sun Sep  7 14:17:36 1997  Torbjorn Granlund  (

	* expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
	for negative constants.  Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
	when op1_is_pow2.

Sun Sep  7 13:46:46 1997  Jeffrey A Law  (

	* final.c (shorten_branches): During first pass, assume worst
	possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.

	* (distclean): Remove various things left around
	by running the testsuite.

Sun Sep  7 13:16:06 1997  Manfred Hollstein  <>

	* (out_file): Emit definition to config.status in order
	to have a defined value for configure.lang.
	* configure: Re-built.

Sun Sep  7 09:59:08 1997  Jan-Jaap van der Heijden  (

	* Make symlink to as-new rather than  Similarly
	for ld-new.
	* configure: Rebuilt.

Fri Sep  5 16:54:55 1997  Jim Wilson  <>

	* profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.

Fri Sep  5 16:16:44 1997  Christian Kuehnke  <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>

	* sparc/ Add ultrasparc scheduling support.
	* sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.

Fri Sep  5 14:04:59 1997  Philippe De Muyter  <>

	* integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
	as initial value for real_label_map.
	(copy_for_inline): Likewise.

Fri Sep  5 13:36:44 1997  J"orn Rennecke  <>

	* sched.c (update_flow_info): When looking if to set found_split_dest
	or found_orig_dest, look at all parts of a PARALLEL.
	* haifa-sched.c (update_flow_info): Likewise.

Fri Sep  5 10:08:44 1997  Jeffrey A Law  (

	* v850: New directory for v850 port.
	* v850/lib1funcs.asm: New file.
	* t-v850, v850.c, v850.h,, xm-v850.h: New files.
	* ginclude/va-v850.h: New file.
	* ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
	* (mn10200-*-*): New target.
	* configure: Rebuilt.
	* config.sub: Handle v850-elf.
	* (USER_H): Add va-mn10200.h.
	* invoke.texi: Document v850 stuff.

Fri Sep  5 09:37:50 1997  Jim Wilson  (

	* sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
	has integer TYPE_{MAX,MIN}_VALUE before using them.

	__HPUX_ASM__ versions.

Fri Sep  5 09:08:44 1997  Jeffrey A Law  (

	* Delete duplicate install script.

Thu Sep  4 23:14:27 1997  Stan Cox  (

	* reg-stack.c (subst_stack_regs): Pop the stack register for a
	computed goto which sets the same stack register.

	* reg-stack.c (compare_for_stack_reg): Swap only if the source and
	destination are both on the regstack.
	(subst_stack_regs_pat): Put the destination at the top of the regstack.

Thu Sep  4 15:02:27 1997  Jim Wilson  <>

	* (nonlocal_goto_receiver): Define.

	* profile.c (output_arc_profiler): Check next_insert_after for non
	NULL before deferencing it.

	* i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.

Thu Sep  4 14:51:57 1997  Jeffrey A Law  (

	* i386.h (CPP_CPU_DEFAULT): Avoid using #elif.

Thu Sep  4 15:01:49 1997  Michael Meissner  <>

	* toplev.c (rest_of_compilation): For passes starting with
	flow_analysis, use print_rtl_with_bb instead of print_rtl.

	* print-rtl.c (print_rtl_single): Print a single rtl value to a

	* flow.c (print_rtl_with_bb): Print which insns start and end
	basic blocks.  For the start of a basic block, also print the live

Thu Sep  4 11:51:43 1997  Jim Wilson  <>

	* toplev.c (main): Change #elif to #else/#ifdef.

	* tlink.c: Include ctype.h.
	* ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.

Thu Sep  4 11:17:16 1997  Mikeael Meissner  (

	* bitmap.c: Conditionally include stdlib.h.
	(free): Provide a declaration if NEED_DECLARATION_FREE.

Thu Sep  4 09:58:53 1997  Joel Sherrill  (

	* i960/i960.h: Added default for SUBTARGET_SWITCHES macro.

Thu Sep  4 09:53:20 1997  Jim Wilson  (

	* profile.c (output_arc_profiler): Verify next_insert_after is an
	INSN before and after skipping a stack pop.

Thu Sep  4 07:39:19 1997  J"orn Rennecke  <>

	* final.c (shorten_branches): Don't count the lengths of deleted

Thu Sep  4 09:43:01 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

Thu Sep  4 11:04:21 1997  Michael Meissner  <>

	* bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
	two bitmaps ANDed together.
	(bitmap_print): Declare.

	* bitmap.c (function_obstack): Don't declare any more.
	(bitmap_obstack): Obstack for allocating links from.
	(bitmap_obstack_init): New static to say whether to initialize
	(bitmap_element_allocate): Use bitmap_obstack to allocate from.
	(bitmap_release_memory): Free all memory allocated from

	* basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke

Wed Sep  3 10:39:42 1997  Jim Wilson  <>

	* alias.c (true_dependence): Address with AND can alias scalars.
	(anti_dependence, output_dependence): Likewise.

	* alias.c (true_dependence): Test x for BLKmode, in addition to mem.

Wed Sep  3 09:28:50 1997  Joel Sherrill  (

	* i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
	  mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
	  sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
	  definitions.  Use -qrtems instead of -mrtems.

Wed Sep  3 09:05:41 1997  Robert Lipe  (

	* xm-sco5.h (sys_siglist): Define.

Tue Sep  2 23:33:33 1997  Jeffrey A Law  (

	* expr.c (convert_move): Handle truncation from TQFmode to QFmode.

Wed Sep  3 02:09:30 1997  Torbjorn Granlund  <>

	* except.c (eh_outer_context): Expand masking operation using

Tue Sep  2 18:09:39 1997  Jim Wilson  <>

	* (floatdisf2-1): New pattern.

Tue Sep  2 18:41:55 1997  Jeffrey A Law  (

	* xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
	* xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
	* xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
	* gcc.texi: Note that if you define sys_siglist that you should

	* mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
	are relative to the next instruction, not the current instruction.

Tue Sep  2 14:22:43 1997  Jim Wilson  <>

	* local-alloc.c (contains_replace_regs): New function.
	(update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
	verify that there is no existing REG_EQUIV note, and add a call to

Tue Sep  2 12:48:11 1997  H.J. Lu  (

	* config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
	(STARTFILE_SPEC): Always use crtbegin.o%s.
	(ENDFILE_SPEC): Always use crtend.o%s.

Tue Sep  2 12:00:36 1997  Jim Wilson  <>

	* alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
	is passed in.
	* emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
	SFmode for 64 bit hosts.

Tue Sep  2 13:42:38 1997  Paul N. Hilfinger  <hilfingr@CS.Berkeley.EDU>

	* fixincludes: Permits spaces between # and define.  Discard C++
	comments in sys/pci.h on HP/UX 10.20.

Mon Sep  1 22:13:18 1997  Jeffrey A Law  (

	* version.c: Bump for snapshot.

	* pa.c (restore_unscaled_index_insn_codes): New function.
	(record_unscaled_index_insn_codes): Likewise.
	(output_function_prologue): Call restore_unscaled_index_insn_codes.
	(output_function_epilogue): Free memory for unscaled_index_insn_codes.
	(pa_reorg): Call record_unscaled_index_insn_codes.

	* haifa-sched.c (move_insn): Handle notes correctly for insns
	with SCHED_GROUP_P set.

Mon Sep  1 16:58:57 1997  H.J. Lu  (

	* alpha/xm-linux.h (USE_BFD): Undef before define.

Mon Sep  1 16:25:34 1997  Jim Wilson  <>

	* cse.c (cse_insn): Don't record BLKmode values.

Mon Sep  1 11:25:47 1997  Stephen Williams  (

	* i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.

Mon Sep  1 08:29:46 1997  Jeffrey A Law  (

	* cccp.c (sys_errlist): Remove special 4.4bsd declaration.
	* collect2.c (sys_errlist): Likewise.
	* cpplib.c (sys_errlist): Likewise.
	* gcc.c (sys_errlist): Likewise.
	* protoize (sys_errlist): Likewise.
	* Check for strerror.
	* xm-freebsd.h (HAVE_STRERROR): Remove definition.
	* xm-gnu.h (HAVE_STRERROR): Likewise.
	* xm-linux.h (HAVE_STRERROR): Likewise.
	* xm-netbsd.h (HAVE_STRERROR): Likewise.
	* xm-bsd386.h (HAVE_STRERROR): Likewise.
	* xm-cygwin32.h (HAVE_STRERROR): Likewise.
	* xm-dos.h (HAVE_STRERROR): Likewise.
	* xm-mingw32.h (HAVE_STRERROR): Likewise.
	* xm-pa.h (HAVE_STRERROR): Likewise.
	* xm-papro.h (HAVE_STRERROR): Likewise.
	* xm-sysv4.h (HAVE_STRERROR): Likewise.
	* configure, Rebuilt.

	* Add several missing "else true" clauses.

	* mips-tfile.c: Likewise.
	* gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
	* xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
	* xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
	* Check for sys_siglist declaration.
	* configure, Rebuilt.

Mon Sep  1 08:04:07 1997  Joel Sherrill  (

	* i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
	m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
	sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
	* i960/i960.h: Added SUBTARGET_SWITCHES macro.
	* rs6000/sysv4.h (extra_subtarget_switches): Added new
	* (sh*-*-rtems*): New target.
	* sh/rtems.h: New file.
	* sh/sh.h: Added SUBTARGET_SWITCHES macro.
	* configure: Rebuilt.

Sat Aug 30 22:54:26 1997  Jim Wilson  <>

	* unroll.c (calculate_giv_inc): Handle increment with code PLUS.

Sat Aug 30 10:49:46 1997  David Edelsohn  <>

	* Make DF fused-add operations pay attention to

Fri Aug 29 19:19:54 1997  Jim Wilson  <>

	* i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.

Fri Aug 29 16:13:51 1997  Jeffrey A Law  (

	* (reload_peepholes): Make sure operand is a REG before
	examining REGNO.  Allow general registers too.

Fri Aug 29 11:42:04 1997  Jim Wilson  <>

	* varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.

Fri Aug 29 09:33:20 1997  Philipp Thomas  (

	* dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
	to reallocate abbrev_die_table.

Thu Aug 28 15:14:46 1997  Jim Wilson  <>

	* m68k/ (iorsi_zexthi_ashl16): Disable.

1997-08-27  Andreas Schwab  <>

	* (config.status): Depend on version.c.

	* expr.h (insn_gen_function): Reenable prototype.

	* expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
	first parameter.

Thu Aug 28 13:01:43 1997  Jim Wilson  <>

	* i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.

Thu Aug 28 07:03:15 1997  Jeffrey A Law  (

	* version.c: Bump for latest snapshot.

	* bc-optab.c: Conditionally include stdlib.h.
	(free): Provide a declaration if NEED_DECLARATION_FREE.
	* tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
	* rtl.h (free): Remove declaration.
	* tree.h (free): Remvoe declaration.

	* configure: Rebuilt.

Wed Aug 27 21:32:20 1997  Jeffrey A Law  (

	* flags.h (flag_move_all_movables): Declare.
	(flag_reduce_all_givs): Likewise.
	* loop.c (move_movables): Handle flag_move_all_movables.
	(strength_reduce): Handle flag_reduce_all_givs.
	* toplev.c (flag_move_all_movables): Define.
	(flag_reduce_all_givs): Likewise.
	(f_options): Add -fmove-all-movables and -freduce-all-givs.
	* invoke.texi: Document new options, including alias stuff that
	wasn't included last time.

Wed Aug 27 18:08:51 1997  Bob Manson  (

	* t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
	* t-mn10200: Likewise.
	* t-vxsparc: Likewise.
	* t-vxworks68: Likewise.
	* t-vxworks960: Likewise.
	* t-vx29k: Likewise.

Wed Aug 27 16:35:29 1997  Richard Henderson  <>

	* alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
	if not already defined, and USE_C_ALLOCA not defined.

Wed Aug 27 16:08:43 1997  Jim Wilson  <>

	* config.guess: Replace with script that uses ../config.guess.

	* config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
	if USE_GNULIBC_1 is not defined.

Wed Aug 27 15:49:12 1997  Richard Henderson  <>

	* alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
	* config.guess: Recognize alpha-linux-gnulibc1.
	* (alpha-*-linux-gnulibc1): New target.
	(alpha-*-linux-gnu*): Don't build crtbegin/end.

Wed Aug 27 11:52:58 1997  Jim Wilson  <>

	* (iorsi3_internal): Readd ! TARGET_5200 check lost in
	last change.

Wed Aug 27 01:56:18 1997  Doug Evans  <>

	* loop.c (combine_movables): Earlier insns don't match later ones.

Wed Aug 27 01:24:25 1997  H.J. Lu  (

	* config/linux.h (CC1_SPEC): Define it only if not defined.

	* config/m68k/linux.h (CC1_SPEC): Undefine it before include

	* config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
	USE_GNULIBC_1 is not defined.

	* config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New.  Defined as 1.

	* config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
	as 1 if USE_GNULIBC_1 is not defined.

Wed Aug 27 00:49:14 1997  Jeffrey A Law  (

	* reorg.c (dbr_schedule): Allow current_function_return_rtx
	to be something other than a REG.
	* function.c (expand_function_end): Fix current_function_return_rtx
	if it was a pseudo.

	* t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
	* x-netbsd: Likewise.
	* x-dguxbcs: Likewise.
	* x-hp3bsd44: Likewise.
	* x-pa: Likewise.

Wed Aug 27 00:30:00 1997  Bernd Schmidt  <>

	* (pop): pop increments the stack pointer.
	(prologue_set_stack_ptr): New pattern.
	* i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
	instead of subsi3.

Tue Aug 26 18:50:32 1997  Jim Wilson  <>

	* reload.c (find_reloads, case '0'): Reject matching a non-offsettable
	address where an offsettable address is required.

Tue Aug 26 17:54:56 1997  Michael P. Hayes  (>

	* loop.c (check_final_value): Don't miss a biv increment in a

Tue Aug 26 12:03:49 1997  Jim Wilson  (

	* dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check

Mon Aug 25 23:27:10 1997  H.J. Lu  (

	* objc/ ($(OBJC_O)): Also depend on cc1obj.

Mon Aug 25 23:27:10 1997  Jim Meyering  <>

	* objc/ ($(OBJC_O)): Also depend on $(GCC_PASSES).

Mon Aug 25 13:12:24 1997  Jeffrey A Law  (

	* haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
	(find_post_sched_live): Likewise.

	* haifa-sched.c (schedule_block): Remove old code to get arguments
	from hard regs into pseudos early.

Mon Aug 25 08:55:00 1997  Jeffrey A Law  (

	* version.c: Bump for new snapshot.

	* local-alloc.c (update_equiv_regs): All the target to reject
	promotion of some REG_EQUAL to REG_EQUIV notes.

	* pa.c (secondary_reload_class): (mem (mem ... )) does not need
	secondary reloads.

	* pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
	store of the argument registers.

Mon Aug 25 08:39:02 1997  Craig Burley  (

	* fold-const.c (multiple_of_p): New function.
	(fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.

Mon Aug 25 01:47:41 1997  Jeffrey A Law  (

	* expr.h (insn_gen_function): Temporarily remove prototype.

Sun Aug 24 17:22:21 1997  Jim Wilson  <>

	* (install-info): Don't cd into srcdir.  Add srcdir to
	filenames.  Use sed to extract base filename for install.

Sat Aug 23 18:19:40 1997  John F. Carr  <>

	* unroll.c (find_splittable_givs): Only share if two givs have the
	same add and multiply values.

Sat Aug 23 14:36:27 1997  Jim Wilson  <>

	* m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
	* m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.

Sat Aug 23 00:18:22 1997  Jeffrey A Law  (

	* pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
	around branch tables.
	* (begin_brtab, end_brtab): Only emit the .begin_brtab
	and .end_brtab directives if TARGET_GAS.

Fri Aug 22 14:05:55 1997  Jim Wilson  <>

	* alias.c (true_dependence): Pass x_addr not x to varies.

	* acconfig.h (NEED_DECLARATION_CALLOC): Add.
	* Add GCC_NEED_DECLARATION call for calloc.
	* rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
	*, configure: Regenerate.

Thu Aug 21 23:52:16 1997  John F. Carr  <>

	* alias.c (find_base_value): Improve handling of PLUS, MINUS, and
	(record_set): Handle LO_SUM like PLUS.
	(init_alias_analysis): When following chains of base addresses,
	do not stop on reaching a hard register.

Thu Aug 21 20:17:37 1997  Jeffrey A Law  (

	* version.c: Bump for new snapshot.

Thu Aug 21 17:28:00 1997  Jim Wilson  <>

	* alpha.h (ARCH_ASM_FILE_START): Define.
	* osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.

Thu Aug 21 10:22:19 1997  Jeffrey A Law  (

	* (install-common): Put gcov comment at start of line.

Wed Aug 20 22:47:33 1997  Jeffrey A Law  (

	* alias.c (init_alias_analysis): When simplifying the reg_base_value
	array, simplify entries for hard registers too.

Wed Aug 20 12:35:47 1997  Dave Love  <>

	* dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from

Wed Aug 20 11:58:33 1997  Jim Wilson  <>

	* stmt.c (start_cleanup_deferral, end_cleanup_deferral): Test
	block_stack before dereferencing it.

Wed Aug 20 11:57:11 1997  Michael Meissner  <>

	* rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.

Tue Aug 19 17:10:56 1997  Jason Merrill  <>

	* cplus-dem.c: Add 'extern' to prepends_underscore.

Tue Aug 19 09:34:57 1997  Jeffrey A Law  (

	* haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
	(get_issue_rate): Delete.
	* pa.h (ISSUE_RATE): Define.

	* Turn on haifa by default for the PA.
	* configure: Rebuilt.
	* pa.c (override_options): Accept -mschedule=7200 option.
	(pa_adjust_cost): No longer need to scale costs for newer
	* pa.h (enum processor_type): Add PROCESSOR_7200.
	* Revamp scheduling parameters to work better with
	haifa.  Add scheduling parameters for the 7200.

	* haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
	insns too.
	(schedule_block): When adjusting basic_block_{head,end}, account
	for movement of SCHED_GROUP_P insns too.

	* haifa-sched.c (debug_dependencies): Fix thinko.

	(site.exp, check, check-g++, check-gcc): New targets.

	* haifa-sched.c: Make lots of variables static.

Tue Aug 19 07:18:34 1997  H.J. Lu  (

	* expr.h, real.h: Finish prototyping.

Mon Aug 18 21:49:02 1997  Jim Wilson  <>

	* reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
	reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
	* reload1.c: Undo bugfix from Aug 11.

Mon Aug 18 17:39:02 1997  Mike Meissner  <>

	* ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
	quotes around the name.
	* configure: Regenerate.

Mon Aug 18 13:46:47 1997  Jim Wilson  <>

	* (stmp-multilib-sub): Fix typo in last change.

Thu Aug  7 10:33:13 1997  Manfred Hollstein  <>

	* (sub-makes): Pass the current value of LANGUAGES down
	to sub-makes to avoid building more passes than the user might have
	requested on the command line.

Sun Aug 17 15:42:17 1997  Dave Love  (

	* Expurgate `broken_install' (install is

	* configure.lang: Substitute autoconfed ${INSTALL} (not currently

Sat Aug 16 01:08:12 1997  Jeffrey A Law  (

	* loop.c (is_power_of_2, is_conditional_branch): Delete unused
	functions and declarations.
	(analyze_loop_iterations): Use condjump_p.
	(insert_bct): Likewise.  Use exact_log2.

Fri Aug 15 23:48:32 1997  Jeffrey A Law  (

	* haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
	(schedule_region): Likewise.
	(schedule_insns): Likewise.

	* PROJECTS: Update with Haifa stuff.

Fri Aug 15 12:49:56 1997  Jeffrey A Law  (

	* version.c: Change the version string to look like:
	egcs-2.90.00 970814 (gcc2-970802 experimental).

	* loop.c (is_conditional_branch): Make definition match declaration.

	* gcc.c: Take out experimental snapshot warning message.

Fri Aug 15 13:43:39 1997  Michael Meissner  <>

	* haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
	print out the names of the notes.  Print out the name of the insn
	that is not a note, and not an {,CALL_,JUMP_}INSN.

Wed Aug 13 17:32:38 1997  Jason Merrill  <>

	* expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
	again for the slot after we give it RTL.

Wed Aug 13 01:03:37 1997  Doug Evans  <>

	* (haifa configury): Fix typo.
	* configure: Regenerate.

Tue Aug 12 10:20:36 1997  Jeffrey A Law  (

	* version.c: Bump version to "gcc-3.0.0 970802 experimental".

	**: Rebuilt.

	* COPYING.g77, README.g77: New files.
	* real.c (ereal_unto_float, ereal_unto_double): New functions.
	* real.h (ereal_unto_float, ereal_unto_double): Declare them.

Mon Aug 11 14:50:55 1997  Jeffrey A Law  (

	* Integrate Haifa instruction scheduler.
	* (ALL_CFLAGS): Add SCHED_CFLAGS.  Prefix all references
	to sched with $(SCHED_CFLAGS.
	* Handle --enable-haifa.
	* configure: Rebuilt.
	* flags.h: Add new flags for haifa instruction scheduler.
	* genattrtab.c (expand_units): For haifa, don't subtract one
	when computing blockage.
	* toplev.h (flag_schedule_interblock): Haifa scheduler flag.
	(flag_schedule_speculative): Likewise.
	(flag_schedule_speculative_load): Likewise.
	(flag_schedule_speculative_load_dangerous): Likewise.
	(flag_schedule_reverse_before_reload): Likewise.
	(flag_schedule_reverse_after_reload): Likewise.
	(flag_branch_on_count_reg): Likewise.
	(f_options): Add Haifa switches.
	(main): Turn off some Haifa options if appropriate macro is
	defined.  Process Haifa switches.
	* unroll.c (iteration_info): No longer static, since Haifa
	scheduler uses it.
	(unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
	* unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
	* loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
	* loop.h (loop_initial_value,loop_unroll_iter): New globals.
	* loop.c (loop_optimize): If HAIFA is defined, allocate additional
	storage for the Haifa scheduler.
	(mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
	(strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
	are defined, call analyze_loop_iterations and insert_bct to use
	countdown loops.
	(record_giv): Refine test for jumps out of loops if HAIFA is
	(analyze_loop_iterations): New function to identify if we can use
	a countdown loop.
	(insert_bct): Insert countdown loop.
	(instrument_loop_bct): Low level code to insert countdown loop.
	(loop_number): Calculate UID of loop.
	(indirect_jump_in_function_p): Return true if an indirect jump is
	in the function.
	(is_power_of_2): Return true if value is a power of 2.
	(is_conditional_branch): Return true if insn is a conditional
	(fix_bct_param): Process -fbct-{min,max}-N switches.
	(check_bct_param): Return true if loop should be instrumented.
	* loop.c (loop_initial_value,loop_unroll_iter): New globals.
	(loop_optimize): Initialize.
	(get_condition_for_loop): Likewise.
	* loop.c (strength_reduce): Inside of code that uses #ifdef
	HAVE_decrement_and_branch_on_count code, test it to make sure the
	condition is true.
	(instrument_loop_bct): Likewise.
	* haifa-sched.c: New file.

	* Integrate regmove pass.
	* (OBJS): Add regmove.o.
	(regmove.o): Add dependencies.
	* flow.c (find_use_as_address): No longer static.
	* rtl.h (find_use_as_address): Declare.
	* toplev.c (regmove_dump, flag_regmove): Define.
	(f_options): Add -fregmove.
	(regmove_dump_file, regmove_time): Define.
	(fatal_insn): Close the regmove dump file.
	(compile_file): Initialize regmove_time; open/close the regmove dump
	file as needed.  Print regmove time as needed.
	(rest_of_compilation): Run regmove pass if requested, dump
	RTL after regmove if requested.
	(main): If -O2 or more, turn on regmove.  Handle dump switches.
	* regmove.c: New file.

Mon Aug 11 14:15:02 1997  Jeffrey A Law  (

	* Integrate tlink patch from
	* gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
	(process_command): Increment n_switches for them.  Don't discard
	their args.  Validate them.
	(main): Escape " marks when creating COLLECT_GCC_OPTIONS.
	From Rohan Lenard.
	(process_command): Set include_prefixes from COMPILER_PATH.
	(main): Set COLLECT_GCC_OPTIONS sooner.
	* Link ../ld/ to collect-ld rather than real-ld.
	* tlink.c, hash.c, hash.h: New files.
	* (USE_COLLECT2): Always use collect2.
	(collect2): Depend on and link in hash.o and tlink.o.
	(tlink.o, hash.o): Add dependencies.

Mon Aug 11 10:04:49 1997  Jeffrey A Law  (

	* Integrate alias analysis changes from
	* (OBJS): Add alias.o.
	(alias.o): Add dependencies.
	* alias.c: New file.
	* sched.c: Remove alias analysis code.  It lives in alias.c now.
	(sched_analyze_2): Add new arguments to true_dependence.
	(schedule_insns): Always call init_alias_analysis.
	* calls.c (expand_call): Note calls to malloc, calloc, and realloc;
	mark return value from such functions as a pointer and keep track of
	them for alias analysis.  If a return value from a function is a
	pointer, mark it as such.
	* combine.c (distribute_notes): Handle REG_NOALIAS.
	* cse.c (struct write_data): Delete.  No longer needed.
	(invalidate): Don't call set_nonvarying_address_components anymore.
	Use true_dependence to decide if an entry should be removed from
	the hash table.
	(invalidate_memory): Remove WRITES argument, simplify appropriately.
	Fix all callers.
	(note_mem_written): Similarly for WRITE_PTR argument.
	(invalidate_from_clobbers): Similarly for W argument.
	(invalidate_for_call): Remove memory elements from the hash table.
	(refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
	(cse_rtx_varies_p): New function.  Derived from old
	(cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
	Don't call note_mem_written anymore.  Stack pushes invalidate the stack
	pointer if PUSH_ROUNDING is defined.  No longer need to call
	cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
	(skipped_writes_memory): Remove variable.
	(invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
	(invalidate_skipped_block): Simplify for new alias analysis code.
	(cse_set_around_loop): Likewise.
	(cse_main): Call init_alias_analysis.
	* flags.h (flag_alias_check, flag_argument_noalias): Declare.
	* toplev.c (flag_alias_check, flag_argument_noalias): Define.
	(f_options): Add new alias checking arguments.
	(main): Set flag_alias_check when optimizing.
	* local_alloc (validate_equiv_mem_from_store): Add new arguments
	to true_dependence.
	(memref_referenced_p): Likewise.
	* loop.c (NUM_STORES): Increase to 30.
	(prescan_loop): Only non-constant calls set unknown_address_altered.
	(invariant_p): Add new arguments to true_dependence.
	(record_giv): Initialize unrolled and shared fields.
	(emit_iv_add_mult): Call record_base_value as needed.
	* loop.h (struct induction): Add unrolled and shared fields.
	* unroll.c  (unroll_loop): Call record_base_value as needed.
	(copy_loop_body): Likewise.
	(final_biv_value): Likewise.
	(final_giv_value): Likewise.
	(find_splittable_regs): Likewise.  Only create one new pseudo
	if we have multiple address GIVs that were combined with the same
	dst_reg GIV.  Note when a new register is created due to unrolling.
	* rtl.c (reg_note_name): Add REG_NOALIAS.
	* rtl.h (enum reg_note): Similarly.
	(rtx_varies_p, may_trap_p, side_effects_p): Declare.
	(volatile_refs_p, volatile_insn_p, remove_note): Likewise.
	(note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
	(true_dependence, read_dependence, anti_dependence): Likewise.
	(output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
	(mark_user_reg, mark_reg_pointer): Likewise.

	* Integrate reload bugfix from Wilon which enables the PA port
	to bootstrap again.
	* reload1.c (reload): Sum needs for both OPADDR_ADDR and
	OPERAND_ADDRESS when computing how many registers an insn needs.
	(reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
	(reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
	OPADDR_ADDR reload.
	(reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
	in reload_reg_use_in_op_addr do not reach the end.
	do not reach the end.
	(reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with

Sun Aug 10 12:00:20 1997  Jeffrey A Law  (

	* egcs project officially starts.

Copyright (C) 1997 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.