Don't use CLASS_LIKELY_SPILLED in local-alloc

[thirdparty/gcc.git] / gcc / ChangeLog

2000-09-06  Bernd Schmidt  <bernds@redhat.co.uk>

	* local-alloc.c (local_alloc): Ignore CLASS_LIKELY_SPILLED.
	(update_equiv_regs): Likewise, except for the mn10200 kludge.
	(combine_regs): Likewise.

	* Makefile.in (cse.o): Depend on $(BASIC_BLOCK_H).
	* cse.c: Include "basic-block.h".
	(struct table_elt): New field REGCOST.
	(CHEAP_REG): Delete macro.
	(COST): Return 0 for REGs.
	(approx_reg_cost_1, approx_reg_cost, preferrable): New functions.
	(notreg_cost): Return 0 for appropriate SUBREGs.
	(COSTS_N_INSNS): Return N * 2.
	(rtx_cost): Return 0 for REGs, and use cost of nested rtx for cheap
	SUBREGs.
	(CHEAPER): Use new function preferrable.
	(insert): Initialize REGCOST member.
	(find_best_addr): Use approx_reg_cost for estimation of register
	usage.
	(cse_insn): Likewise.
	* loop.c (iv_add_mult_cost): New function.
	(add_cost, shift_cost, mult_cost): Delete variables.
	(init_loop): Don't initialize add_cost; reduce copy_cost by half.
	(strength_reduce): Use iv_add_mult_cost instead of fixed add_cost.
	Make code that detects autoinc opportunities slightly less optimistic.
	(simplify_giv_expr): If expression contains other reg that is also a
	giv, only increment benefit if this is the only use of that reg.
	(consec_sets_giv): Take that change into account.
	(combine_givs): Slightly more verbose output.

	* i386.h (RTX_COSTS): For MULT, return true cost of multiplication,
	not the cost of an equivalent shift.
	* sh-protos.h (addsubcosts): Declare.
	* sh.c (addsubcosts): New function.
	* sh.h (CONST_COSTS): If CONST_OK_FOR_I, then return 0.
	(RTX_COSTS): Tweak.  Use addsubcosts.
	(ADDRESS_COST): Return higher cost for reg+reg addressing.

2000-09-06  Geoff Keating  <geoffk@cygnus.com>

	* config/rs6000/rs6000.c (validate_condition_mode): New function.
	(branch_comparison_operator): Call validate_condition_mode to
	abort rather than returning 0.
	(branch_positive_comparison_operator): New function.
	(scc_comparison_operator): Call validate_condition_mode to abort
	rather than returning 0.
	(ccr_bit): Call validate_condition_mode.  Update for
	new branch scheme.
	(print_operand): Delete %C modifier.  Update %E case
	to use EQ bit not SO bit.
	(rs6000_reverse_condition): New function.
	(rs6000_generate_compare): New function.
	(rs6000_emit_sCOND): New function.
	(rs6000_emit_cbranch): New function.
	(output_cbranch): The length of a long branch insn is
	now only 8 bytes.  Add validate_condition_mode.  Use
	rs6000_reverse_condition.  Remove cror generation.
	* config/rs6000/rs6000.h: Update comments.
	(PREDICATE_CODES): Add new predicate.  Update codes used
	by branch_comparison_operator and scc_comparison_operator.
	* config/rs6000/rs6000-protos.h: Add prototypes for
	new external functions.
	* config/rs6000/rs6000.md: Add new scheduling parameters
	for cr_logical instructions.  Change length of branch
	instructions.
	(bCOND patterns): Call rs6000_emit_cbranch.
	(sCOND patterns): Call rs6000_emit_sCOND.
	(branch patterns): Change lengths to 4.
	(cr logical patterns): New.

2000-09-06  Richard Henderson  <rth@cygnus.com>

	* config/i386/i386.md (call_pop): Fix test for setting
	current_function_uses_pic_offset_table.
	(call, call_value_pop, call_value): Likewise.

2000-09-06  Zack Weinberg  <zack@wolery.cumb.org>

	* timevar.c (timevar_add): Delete.
	(timevar_get): Also count time since the selected timer was
	last updated.  Do not examine the timevar stack if the
	selected timer is standalone.

2000-09-05  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* gthr-dce.h (__gthread_objc_mutex_deallocate): Free mutex->backend.

2000-09-05  Jason Merrill  <jason@redhat.com>

	* c-decl.c (finish_incomplete_decl): Don't call complete_array_type
	for 'extern' arrays.

2000-09-05  Richard Henderson  <rth@cygnus.com>

	* config/ia64/lib1func.asm (__divtf3): Rebundle for Itanium.
	Eliminate final copy from non-trapping case.
	(__divdf3, __divsf3): Likewise.

2000-09-05  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.md (mulhi3): Fix typo last change.
	* config/ia64/lib1func.asm (__divdi3, __udivdi3, __umodsi3): Likewise.

2000-09-03  Donn Terry  <donn@interix.com>,  Laurynas Biveinis  <lauras@softhome.net>

	* Makefile.in: Restructure bootstrap stages to allow clean
	restart after failure.

2000-09-05  Richard Henderson  <rth@cygnus.com>

	* config/ia64.md (movsi and movdi patterns): Allow moves from
	8-bit constants to AR registers.

2000-09-05  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.md (mulhi3): New.

2000-09-05  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.h (INIT_TARGET_OPTABS): Remove.
	* config/ia64/lib1funcs.asm (__divdi3): Update from Intel IA-64
	Optimization Guide, minimum latency alternative.
	(__moddi3, __udivdi3, __umoddi3): Likewise.
	(__divsi3, __modsi3, __udivsi3, __umodsi3): Likewise.

2000-09-05  Bruce Korb  <bkorb@gnu.org>

        * fixinc/fixincl.c (load_file): always read header files
        with sizes that are a multiple of the page size.
	& use libiberty's getpagesize for determining that.

2000-09-05  Alexandre Oliva  <aoliva@redhat.com>

	* gcse.c (hash_string_1): Add prototype.
	* cse.c (canon_hash_string): Likewise.

2000-09-04  Craig Newell  <CraigN@ieee.org>

	* gcc.c: Undefine "__WCHAR_TYPE__" before redefining it.

2000-09-04  Andreas Schwab  <schwab@suse.de>

	* Makefile.in (STAGESTUFF): Remove libgcc.
	(stage1-start, stage2-start, stage3-start): Copy the contents of
	the libgcc directory explicitly.
	(mostlyclean): Clean libgcc.

2000-09-04  Andrew Haley  <aph@redhat.com>

	* dwarf2out.c: (stack_adjust_offset): New prototype.

Wed Jan  1 00:23:59 MET 1997  Jan Hubicka  <jh@suse.cz>

	* combine.c (make_extraction): Fix rtx_cost comparison to
	match the comment.

Wed Jan  1 00:17:32 MET 1997  Jan Hubicka  <jh@suse.cz>

	* i386.md (pushsi2, pushhi2, pophi2, swapsf, swapdf, 
	umulsi3_highpart, smulsi3_highpart, testqi_ccno_1, xorqi_ext_1):
	Add '*' to insn pattern name.

2000-09-04  Jakub Jelinek  <jakub@redhat.com>

	* cpplex.c (ON_REST_ARG): Check VAR_ARGS flag of current context,
	use posn - 1 to index into tokens array.
	(maybe_paste_with_next): Adjust caller.

2000-09-03  Geoff Keating  <geoffk@cygnus.com>

	* invoke.texi: Document the -mvxworks option for rs6000 ELF.

	* config/rs6000/rs6000.h: Update various comments about XER_REGNO.
	(REGNO_REG_CLASS): Use symbolic register
	names.

2000-09-03  Richard Earnshaw  <rearnsha@arm.com>

	* arm.c (final_prescan_insn): If the form of a jump insn isn't 
	recognized, don't try to conditionally execute it.

Sun Sep  3 13:10:56 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.md ("*tablejump_lib"): New pattern.
	(call_value_insn): Right length claculation.
	(call_insn): Likewise.

2000-09-02  Marek Michalkiewicz  <marekm@linux.org.pl>

	* config/avr/avr-protos.h, config/avr/avr.c (unique_section,
	gas_output_limited_string, gas_output_ascii, output_movqi,
	output_movhi, out_movqi_r_mr, out_movqi_mr_r, out_movhi_r_mr,
	out_movhi_mr_r, out_movsi_r_mr, out_movsi_mr_r, output_movsisf,
	out_tstsi, out_tsthi, ret_cond_branch, ashlqi3_out, ashlhi3_out,
	ashlsi3_out, ashrqi3_out, ashrhi3_out, ashrsi3_out, lshrqi3_out,
	lshrhi3_out, lshrsi3_out, output_reload_inhi, output_reload_insisf,
	out_shift_with_cnt, ptrreg_to_str, cond_string, encode_section_info):
	Add "const" as needed to remove warnings.

	* config/avr/avr.c (avr_override_options, avr_init_once,
	function_prologue, function_epilogue, frame_pointer_required_p,
	class_likely_spilled_p, order_regs_for_local_alloc,
	avr_address_cost, avr_ret_register): Use K&R style arguments.
	(initial_elimination_offset, gas_output_limited_string):
	Remove ATTRIBUTE_UNUSED from the used arguments.
	(output_mov*, out_mov*_r_mr, out_mov*_mr_r, output_reload_insisf):
	Use local variables src, dest, base to access operands[].
	Rename reg_dest to reg_src if that's what it is.
	(output_movhi, output_movsisf): Optimize loading 8-bit immediate
	constants to LD_REGS if reg_was_0.
	(output_reload_insisf): Change arg 3 to insn length and set it.
	(out_movhi_r_mr, out_movhi_mr_r): Use in/out for more efficient
	access to 16-bit I/O register pairs.
	(avr_address_cost): Lower cost for the above case.
	(out_tsthi): Use "or" (faster) instead of "sbiw" if the operand
	may be clobbered, also for LD_REGS.
	(adjust_insn_length): Correct insn length for iorhi3 and iorsi3
	with a CONST_INT.

	* config/avr/avr.h (PTRDIFF_TYPE): Make signed.

	* config/avr/avr.md: Change all uses of the TEST_HARD_REG_CLASS
	macro to test_hard_reg_class function.
	(*movsi, *movsf): Change "cc" attribute from "clobber" to "none"
	for loading immediate constants to LD_REGS.
	(andsi3, cmphi, cmpsi): Add return statements to avoid warnings.


Sat Sep  2 13:58:23 2000  Marek Michalkiewicz <marekm@linux.org.pl>

	* config/avr/avr.md ("*negsi2"): substitute %@ to __zero_reg__
	* config/avr/libgcc.S: Lost part of the previous patch.

2000-08-31  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* gthr-dce.h (__gthread_objc_mutex_allocate): Create a pthread_mutex_t
	object before calling pthread_mutex_init.

2000-09-02  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/t-elf, config/sh/crt1.asm, config/sh/crti.asm,
	config/sh/crtn.asm: New files.
	* config/sh/t-sh (EXTRA_MULTILIB_PARTS): Set.
	(crt1.o, crti.o, crtn.o): New targets.
	* configure.in [sh-*-elf*, sh-*-rtemself*] (tmake_file): Added
	sh/t-elf.
	* configure: Rebuilt.
	* config/sh/sh.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP,
	STARTFILE_SPEC, ENDFILE_SPEC, CRT_CALL_STATIC_FUNCTION): Define.
	* config/sh/elf.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP):
	Undefine for config/elfos.h to redefine.
	(STARTFILE_SPEC, ENDFILE_SPEC): Redefine after config/elfos.h.

2000-09-02  Alexandre Oliva  <aoliva@redhat.com>, Niibe Yutaka  <gniibe@m17n.org>, Kaz Kojima  <kkojima@rr.iij4u.or.jp>

	* config/sh/sh-protos.h (nonpic_symbol_mentioned_p,
	legitimize_pic_address, output_pic_addr_const): Declare.
	* config/sh/sh.h (CONDITIONAL_REGISTER_USAGE): Fix PIC register.
	(PREFERGOT_BIT, TARGET_PREFERGOT): Likewise.
	(TARGET_SWITCHES): New switch -mprefergot.
	(OVERRIDE_OPTIONS): Set flag_no_function_cse unless -mprefergot.
	(PIC_OFFSET_TABLE_REGNUM): Define.
	(GOT_SYMBOL_TABLE): Likewise.
	(LEGITIMIZE_ADDRESS): Use legitimize_pic_address.
	(ENCODE_SECTION_INFO): Define.
	(FINALIZE_PIC): New macros.
	(LEGITIMATE_PIC_OPERAND_P, SYMBOLIC_CONST_P): New macro.
	(ASM_OUTPUT_INT, ASM_OUTPUT_SHORT): Use output_pic_addr_const.
	* config/sh/sh.c (print_operand_address): Use output_pic_addr_const.
	(prepare_move_operands): Call emit_pic_move or
	emit_pic_const_move if appropriate.
	(output_far_jump): For PIC, use braf and output long offset.
	(machine_dependent_reorg): 
	(sh_expand_prologue): Save and initialize the PIC register.
	(sh_expand_epilogue): Restore it.
	(initial_elimination_offset): Account for it.
	(nonpic_symbol_mentioned_p): New function.
	(legitimize_pic_address): Likewise.
	(output_pic_addr_const): Likewise.
	* config/sh/sh.md (calli_pcrel, call_valuei_pcrel): New insns.
	(call, call_value): Use them.
	(GOTaddr2picreg, sym_label2reg, symGOT2reg, symGOTOFF2reg,
	symPLT_label2reg): New expands.
	* invoke.texi (SH Options): Document -mprefergot.

2000-09-01  Alexandre Oliva  <aoliva@redhat.com>

	* rtl.h (ASM_OPERANDS_INPUT_CONSTRAINT_EXP): New macro.
	* gcse.c (hash_string_1): New function.
	(hash_expr_1) <ASM_OPERANDS>: Disregard filename and line number.
	(expr_equiv_p) <ASM_OPERANDS>: Likewise.
	* cse.c (rtx_cost): Don't increase the cost of ASM_OPERANDS.
	(canon_hash_string): New function.
	(canon_hash) <ASM_OPERANDS>: Disregard filename and line number.
	(exp_equiv_p) <ASM_OPERANDS>: Likewise.
	(fold_rtx): Use ASM_OPERANDS accessor macros.
	* emit-rtl.c (copy_insn_1): Likewise.
	* integrate.c (copy_rtx_and_substitute): Likewise.
	* stmt.c (expand_asm_operands): Likewise.  Give an
	ASM_OPERANDS rtx the mode of the output reg being set from it.

2000-09-01  Fred Fish  <fnf@be.com>

	* fix-header.c (write_rbrac): Add putc and getc to list of
	functions to protect against prior definition as a macro.
 
2000-09-01  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.h (enum c_tree_index): Add CTI_C_SIZE_TYPE.
	(c_size_type_node): Define.
	* c-decl.c (init_decl_processing): Initialize c_size_type_node.
	* c-common.c (enum format_lengths, enum format_std_version,
	format_length_info, format_type_detail, BADLEN, NOLENGTHS,
	format_kind_info, printf_length_specs, scanf_length_specs, T89_I,
	T99_I, T89_L, T99_LL, TEX_LL, T89_S, T89_UI, T99_UI, T89_UL,
	T99_ULL, TEX_ULL, T89_US, T89_F, T99_F, T89_D, T99_D, T89_LD,
	T99_LD, T89_C, T99_SC, T99_UC, T89_V, T94_W, TEX_W, T94_WI,
	TEX_WI, T99_ST, T99_SST, T99_PD, T99_UPD, T99_IM, T99_UIM,
	format_types): Define.
	(format_char_info, print_char_table, scan_char_table,
	time_char_table): Rearrange for new organization of information
	about format length modifiers and standard versions.
	(T_ST): Redefine to use c_size_type_node.
	(check_format_info): Obtain information about length modifiers and
	standard versions from tables.  Adjust warning message wordings.
	Use the name from the user's program for `ll' and `hh' length
	modifiers in warning messages.  Use more informative names for
	wanted types where available (for wchar_t, wint_t, size_t, signed
	size_t, ptrdiff_t, unsigned ptrdiff_t, intmax_t and uintmax_t).

2000-09-01  Jim Wilson  <wilson@cygnus.com>

	* calls.c (emit_call_1): Add REG_NORETURN note to call if ECF_NORETURN.
	* combine.c (distribute_notes): Handle REG_NORETURN.
	* rtl.c (reg_note_name): Add REG_NORETURN.
	* rtl.h (enum reg_note): Likewise.

	* config/ia64/ia64-protos.h (emit_safe_across_calls): Renamed from
	ia64_file_start.
	* config/ia64/ia64.c (emit_safe_across_calls): Likewise.
	(rtx_needs_barrier): Handle unspec_volatile 8 and 9.
	(emit_predicate_relation_info): Handle conditional calls with
	REG_NORETURN.
	* config/ia64/ia64.h (ASM_FILE_START): Call emit_safe_across_calls
	instead of ia64_file_start.
	* config/ia64/sysv4.h (ASM_FILE_START): Likewise.
	* config/ia64/ia64.md (safe_across_calls_all,
	save_across_calls_normal): New patterns.

	* loop.c (check_final_value): Check for biv use before checking for
	giv use.  Check for both biv and giv uses.  Always set last_giv_use
	if there is a giv use.

2000-09-01  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.md (mulsi3): Use grfr_register_operand.
	(madddi3): Likewise.
	(maddsi3): New.

Fri Sep  1 10:59:47 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* expr.c (clear_storage): Don't use emit_move_insn unless
	either BLKmode or proper size.
	(store_constructor): Don't call clear_storage if REG of wrong size.

	* flow.c (init_propagate_block_info): Don't mark frame dead at end
	of function if returns wiht stack pointer depressed.

2000-09-01  Andrew Haley  <aph@redhat.com>

        * dwarf2out.c (stack_adjust_offset): New function.
        (dwarf2out_stack_adjust): Break out stack adjust logic into
        new stack_adjust_offset function.  Look inside parallels and
        sequences for stack adjustments.

2000-08-31  Jeff Law <law@cygnus.com>

	* arm.md: Use no_new_pseudos to determine when it is safe
	to create new pseudo registers.

        * arm.c (legitimize_pic_address): Use no_new_pseudos to determine
        when we can safely allocate new registers.

2000-08-31  Geoffrey Keating  <geoffk@cygnus.com>

	* stmt.c (expand_asm_operands): Twiddle generating_concat_p
	so that CONCATs are not generated for ASMs.
	* emit-rtl.c (gen_reg_rtx): Don't generate CONCATs when
	not generating_concat_p.
	* function.c (pop_function_context_from): Reset
	generating_concat_p.
	(prepare_function_start): Likewise.
	* rtl.c (generating_concat_p): Define.
	* rtl.h (generating_concat_p): Declare.
	* toplev.c (rest_of_compilation): No CONCATs after RTL generation.

2000-08-22  Philipp Thomas  <pthomas@suse.de>
            Masanobu Yuhara <yuhara@flab.fujitsu.co.jp>

	* gmicro.h (TARGET_SWITCHES): Add descriptions and mark them
	for translation.

2000-08-30  Greg McGary  <greg@mcgary.org>

	* Makefile.in (fixinc.sh): Pass CC, CFLAGS and LDFLAGS to mkfixinc.sh
	* fixinc/Makefile.in (fixincl): Pass $(LDFLAGS) to $(CC).
	* fixinc/mkfixinc.sh: Pass $CC, $CFLAGS and $LDFLAGS to $MAKE.

2000-08-30  Greg McGary  <greg@mcgary.org>

	* tree.h (struct tree_int_cst): Wrap low and high in a sub-struct.
	(TREE_INT_CST_LOW, TREE_INT_CST_HIGH): Access through sub-struct.
	(TREE_INT_CST): New macro.
	* varasm.c (const_hash, compare_constant_1, record_constant_1):
	Use new macro TREE_INT_CST.

Wed 30-Aug-2000 23:18:59 BST  Neil Booth  <NeilB@earthling.net>

	* contrib.texi: Add self.

2000-08-30  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.md (cmpeqsi_ior_t, cmpeqsi_and_t): New insns.
	(cmpeqdi_t splitter): Use cmpeqsi_and_t instead of emitting jumps
	and labels.

2000-08-30  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* fixinc/gnu-regex.c: Don't define `const'.

Tue Aug 29 22:09:59 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* expr.c (store_constructor): Allow variable bounds of array type.
	(expand_expr): Don't blow up if type is ERROR_MARK.
	* varasm.c (output_constructor): Don't access lower bound of array
	type unless need it if index is supplied (so it can be a variable
	if no index is supplied).
	Use tree_low_cst; use HOST_WIDE_INT for sizes; change BITPOS to POS.
	Other minor cleanups.

2000-08-29  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* Makefile.in: Revamp handling of cflags to allow different WARN_CFLAGS
	for compilations in stage 1 and subsequent stages, respectively.
	* configure.in (vax): Add compiler-dependent CFLAGS for stage 1.
	* configure: Rebuilt.
	* x-vax, x-vax-gcc: Deleted.

2000-08-29  Zack Weinberg  <zack@wolery.cumb.org>

	* c-common.c (declare_function_name): Use func_id_node,
	function_id_node, and pretty_function_id_node.  Do not make
	__func__ visible at file scope.   
	* c-common.h (c_tree_index): Add CTI_FUNCTION_ID,
	CTI_PRETTY_FUNCTION_ID, and CTI_FUNC_ID.
	(function_id_node, pretty_function_id_node, func_id_node): New
	macros.
	* c-decl.c (init_decl_processing): Initialize function_id_node,
	pretty_function_id_node, and func_id_node.
	(c_make_fname_decl): Correct comment.

	* tree.h (struct tree_identifier): Constify pointer member.

	* c-decl.c (pushdecl, implicit_decl_warning): Constify a char *.
	* c-pragma.h (struct weak_syms): Constify name and value members.
	(add_weak): Constify arguments.   

	* calls.c (special_function_p): Constify a char *.
	(expand_call): Remove variable which is initialized and then
	never used.
	* dependence.c (struct def_use, struct induction, struct subscript):
	Constify 'variable' member.
	(get_low_bound, have_induction_variable): Constify char * argument.
	(find_induction_variable): Add braces to avoid dangling else.
	(classify_dependence): Constify char * arrays.
	* profile.c (output_func_start_profiler): Constify a char *.
	* stor-layout.c (finalize_record_size): Constify a char *.
	* tree.c (is_attribute_p): Constify a char *.
	* varasm.c (add_weak, remove_from_pending_weak_list): Constify argument.

	* varasm.c (make_function_rtl, make_decl_rtl): Rearrange code
	for comprehensibility.  Do not call get_identifier if we did
	not change the DECL_ASSEMBLER_NAME of the decl.  Use alloca to
	create temporary string constants, not ggc_alloc_string.  No
	need to copy result of ASM_FORMAT_PRIVATE_NAME.  Use const
	char * to hold IDENTIFIER_POINTERs.

2000-08-29  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.md (muldi3): Use grfr_register_operand
	for the inputs.

2000-08-29  Richard Henderson  <rth@cygnus.com>

	* reload.c (push_secondary_reload): Allow class == reload_class
	if we're using a reload_in/out pattern.

	* config/ia64/ia64.md (reload_inti): Use a TImode scratch.  Use
	the half that does not conflict with the reload register.
	(reload_outti): Likewise.

2000-08-29  Kazu Hirata  <kazu@hxi.com>

	* reload.c: Fix formatting.

	* stmt.c: Fix formatting.

	* gcc.c: Fix formatting.

2000-08-29  Zack Weinberg  <zack@wolery.cumb.org>

	* flags.h (time_report, mem_report): New global flags.
	* toplev.c: Define time_report and mem_report.
	(f_options): Add -ftime-report and -fmem-report.
	(compile_file): Turn on time_report if quiet_flag is off.
	Call ggc_print_statistics at very end if mem_report is on.
	* timevar.c (TIMEVAR_ENABLE): Examine time_report, not quiet_flag.

	* ggc-common.c (ggc_print_statistics): Rename to
	ggc_print_common_statistics; all callers changed.  Scale
	quantities above 10K to kilobytes and above 10M to megabytes.
	* ggc-page.c (ggc_page_print_statistics): Rename to
	ggc_print_statistics.  Report memory consumed by internal data
	structures for each allocation bucket.  Scale quantities above
	10K to kilobytes and above 10M to megabytes.
	* ggc-simple.c: Prototype debug_ggc_tree to avoid warning.
	Cast PTR_KEY(p) to unsigned long in fprintf call to avoid warning.
	Define tally_leaves always.
	(ggc_print_statistics): New function.
	* ggc.h: Adjust for renamed functions.

Wed Aug 30 00:11:42 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.md ("*movsf","*movsi"): Pass NULL to
	output_movsisf instead of which_alternative.

	* config/avr/avr.c (output_reload_inhi): Check for NULL ponter.

Tue Aug 29 22:29:58 2000  Denis Chertykov  <denisc@overta.ru> & Marek Michalkiewicz <marekm@linux.org.pl>

	* config/avr/avr-protos.h: (avr_output_ascii) Removed.
	(avr_progmem_p): New prototype.
	(output_movsisf): Prototype declaration changed.
	(output_movqi): New prototype.
	(output_movhi): New prototype.
	(call_insn_operand): Likewise.
	(final_prescan_insn): Likewise.	
	(avr_simplify_comparision_p): Likewise.
	(avr_normalize_condition): Likewise.
	(compare_eq_p): Likewise.
	(out_shift_with_cnt): Likewise.
	(const_int_pow2_p): Likewise.
	(output_reload_inhi): Prototype declaration changed.

	* config/avr/avr.c: (debug_hard_reg_set): Prototype declared.
	(ldi_reg_rtx): New. rtx for r31.
	(avr_init_stack): Initialize as "__stack".
	(function_prologue): Use it.
	Replace all TARGET_ENHANCED with AVR_ENHANCED.
	(avr_mcu_name): Initialize as "avr2".
	(avr_enhanced_p, avr_mega_p): New variables.
	(mcu_types, avr_override_options): Handle all known MCU types.
	Also handle avr1 (only preprocess, assemble and link).
	(print_operand): Using of `%K' in output template removed.
	(out_movqi_r_mr): Optimized.
	(out_movhi_r_mr): Likewise.
	(output_movqi): New function.
	(output_movhi): Likewise.
	(out_movsi_r_mr): Optimized.
	(output_movsisf): Compute insn length for `adjust_insn_length'
	(out_movqi_mr_r): Optimized.
	(out_movhi_mr_r): Optimized.
	(adjust_insn_length): Use output_movsisf, output_movqi,
	output_movhi for insn length adjusting.
	(reg_unused_after): Use dead_or_set_p.
	(preferred_reload_class): Now havn't any restriction.
	(reg_was_0): New function.
	(io_address_p): Likewise.
	(const_int_pow2_p): Likewise.
	(output_reload_inhi): Likewise.
	(output_reload_insisf): Likewise.

	* config/avr/avr.h (MULTILIB_DEFAULTS): Define.
	(LIB_SPEC): Use -lc for all supported devices.
	(LIBGCC_SPEC): Use -lgcc for all supported devices.
	(AVR_MEGA): Define as avr_mega_p.
	(AVR_ENHANCED): New, define as avr_enhanced_p.
	(TARGET_SWITCHES): Remove -menhanced, now handled by -mmcu=...
	(CPP_SPEC, LINK_SPEC): Handle all known MCU types.
	(CRT_BINUTILS_SPECS): Handle all known MCU types.
	Rename gcrt1-*.o to make file names unique on 8.3 filesystems.
	(EXTRA_SPECS): Add CPP_AVR[1-5]_SPEC.
	(ASM_SPEC): Pass -mmcu=... to the assembler.
	Change all -DAVR_* to -D__AVR_*__.
	(INIT_TARGET_OPTABS), config/avr/libgcc.S:
	Rename library functions to start with two underscores.
	(ASM_OUTPUT_COMMON): Outputs `.comm VAR,VAR-SIZE,1' to avoid
	alignment.
	(ASM_WEAKEN_LABEL): Declared for __attribute__((weak)).
	(SUPPORTS_WEAK): Likewise.
	(LDI_REG_REGNO): New. Register r31 will be used as temporary
	register for loading constants to r0-r14.

	* config/avr/avr.md: Replace all TARGET_ENHANCED with
	AVR_ENHANCED.
	(*mov_r_sp): Removed. Handled by output_movhi.
	(*mov_sp_r): Likewise.
	(*mov_sp_r_no_interrupts): Likewise
	(*mov_sp_r_tiny): Likewise.
	(*movqi): Use output_movqi.
	(*reload_inqi): New.
	(*movhi): Use output_movhi.
	(*reload_inhi): New.
	(*negsi2): Optimized.
	(*negsf2): Likewise.
	Added peepholes (define_peephole2) for loading constants to r0-r14
	and for using `cpse' command.

	* config/avr/libgcc.S: Rename library functions to start with two
	underscores.
	Add support for enhanced core.
	(_moqhi3): Fix typo, now _modqi3.
	(__divsi_raw): Use __zero_reg__ as loop counter, smaller by 1 word.
	(__prologue_saves__): Remove test for stack adjust by 0.
	(__tablejump__): New.

	* config/avr/t-avr: Build libgcc2 with -mcall-prologues.
	Add multilib support.

Tue Aug 29 15:17:54 EDT 2000  John Wehle  (john@feith.com)

	* loop.c (prescan_loop): Don't check unknown_address_altered
	when deciding if insert_loop_mem is safe.  Add BLKmode MEMs
	to loop_store_mems as necessary.
	(loop_invariant_p): Don't check unknown_address_altered
	or unknown_constant_address_altered.

2000-08-29  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* vax.md (sltu, sgeu): Delete sltu and sgeu insn patterns.

2000-08-29  Zack Weinberg  <zack@wolery.cumb.org>

	* cpperror.c (print_file_and_line): If line is (unsigned int)-1,
	print just the filename.
	* cpplex.c (_cpp_run_directive): Add additional argument, the
	name to give the synthetic buffer.  This defaults to
	translated "<command line>".
	* cpplib.c (cpp_define, cpp_undef, cpp_assert, cpp_unassert):
	Adjust to match.
	(_cpp_define_builtin): New function.
	* cppinit.c (initialize_builtins): Use _cpp_define_builtin.
	* cpphash.h: Update prototypes.

	* tradcpp.c (main): Process -D and -U simultaneously, in the
	order they appeared on the command line.

2000-08-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-decl.c (define_label): Call warning_with_file_and_line and
	error_with_file_and_line instead of plain warning or error.

	* c-parse.in (label): Use save_filename/save_lineno to ensure
	correct values for calls to define_label.

2000-08-29  Mark Mitchell  <mark@codesourcery.com>

	* calls.c (expand_call): Don't create a VAR_DECL just to throw it
	away.
	* expr.c (expand_expr, case TARGET_EXPR): Don't call
	mark_addressable.
	* tree.h (get_file_function_name): Remove two duplicate
	declarations.

2000-08-28  Kazu Hirata  <kazu@hxi.com>

	* tree.c: Fix formatting.

	* xcoffout.c: Fix formatting.

2000-08-28  Jason Merrill  <jason@redhat.com>

	* dwarf2out.c (attr_checksum): Also ignore DW_AT_producer.

2000-08-28  Daniel Berlin  <dberlin@redhat.com>

	* dwarf2out.c (dwarf2out_finish): Don't bother calling
	break_out_includes if it won't do anything.

2000-08-28  Richard Henderson  <rth@cygnus.com>

	* reload.c (push_secondary_reload): Revert 2000-08-16 change.
	(find_reloads): Likewise.
	* config/alpha/alpha.md (reload_inqi): Revert 2000-08-11 change.
	(reload_inhi): Likewise.

2000-08-28  Richard Henderson  <rth@cygnus.com>

	* config/i386/i386.c: Don't error on EXTRA_CONSTRAINT defined.
	(call_insn_operand): Don't expect a surrounding mem.
	(constant_call_address_operand): Likewise.
	* config/i386/i386.h (PREDICATE_CODES): Update.
	* config/i386/i386.md (call patterns): Move the match_operand
	for the call destination inside the mem.

2000-08-28  Richard Henderson  <rth@cygnus.com>

	* local-alloc.c (requires_inout): Don't use reserved range for
	EXTRA_CONSTRAINTS; use anything not matched by REG_CLASS_FROM_LETTER.
	* recog.c (asm_operand_ok): Likewise.
	(preprocess_constraints, constrain_operands): Likewise.
	* regclass.c (record_reg_classes): Likewise.
	* reload.c (find_reloads): Likewise.
	* reload1.c (maybe_fix_stack_asms): Likewise.
	(reload_cse_simplify_operands): Likewise.
	* stmt.c (expand_asm_operands): Likewise.

	* md.texi: Update constraints documentation.
	* tm.texi (EXTRA_CONSTRAINT): Update.

2000-08-28  Daniel Berlin  <dberlin@redhat.com>

	* dwarf2out.c (DIE_LABEL_PREFIX): Remove leading "__".
	(print_die): If we don't know the offset of the
	target die, try the symbol.  Add a trailing newline.
	(reverse_all_dies): New fn.
	(dwarf2out_finish): Call it.
	(break_out_includes): Reorganize for clarity.
	(add_sibling_attributes): Don't call reverse_die_lists.
	(output_comp_unit): Rename from output_comdat_comp_unit.  Use for
	primary CU, too.
	* flags.h: Add flag_eliminate_dwarf2_dups.
	* toplev.c (f_options): Support -feliminate-dwarf2-dups.

2000-08-28  Jason Merrill  <jason@redhat.com>

	* dwarf2.h (DW_TAG_GNU_BINCL, DW_TAG_GNU_EINCL): New tags.
	* dwarf2out.c: #include "md5.h".
	(DIE_LABEL_PREFIX): New macro.
	(dw_val_struct): Add 'external' flag to val_die_ref.
	(add_AT_die_ref, AT_ref): Adjust.
	(AT_ref_external, set_AT_ref_external): New fns.
	(build_abbrev_table): Call set_AT_ref_external.
	(value_format): Call AT_ref_external.
	(die_struct): Add die_symbol field.
	(new_die): Clear it.
	(dwarf_tag_name): Handle BINCL/EINCL.
	(dwarf2out_start_source_file): Add BINCL DIE.
	(dwarf2out_end_source_file): Add EINCL DIE.
	(push_new_compile_unit, pop_compile_unit, clear_die_sizes): New fns.
	(loc_checksum, attr_checksum, die_checksum): New fns.
	(is_type_die, is_comdat_die, is_symbol_die): New fns.
	(compute_section_prefix, assign_symbol_names): New fns.
	(gen_internal_sym, output_die_symbol, output_symbolic_ref): New fns.
	(output_die): Call output_die_symbol and AT_ref_external.
	(output_comdat_comp_unit): New fn, split out from...
	(dwarf2out_finish): ...here.  Also call add_sibling_attributes for 
	secondary CUs.
	(output_pubnames, output_aranges): Abort if we see entries from
	secondary CUs.
	* toplev.h: Declare file_name_nondirectory.
	* toplev.c (file_name_nondirectory): New fn, moved from C++ frontend.
	(rest_of_type_compilation): Call dwarf2out_decl if at toplevel.
	(debug_start_source_file): Call dwarf2out_start_source_file
	regardless of debug verbosity.
	(debug_end_source_file): Similarly.
	* tree.h: Declare clean_symbol_name.
	* tree.c (clean_symbol_name): Split out from...
	(get_file_function_name_long): ...here.

	* dwarf2out.c (new_loc_descr): Use calloc.
	(splice_child_die): Remove the die from the right parent.
	(gen_struct_or_union_die): Don't add AT_name to a specification DIE.

Mon Aug 28 19:02:13 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* toplev.c (decode_g_option): Don't give warning for unknown -g
	option; return 0 instead.
	(main): If -g option is not recognized by front end or
	language-independent code, give warning.

2000-08-28  Greg McGary  <greg@mcgary.org>

	* config/i386/i386-protos.h (ix86_expand_compare): Add extern decl.
	* config/i386/i386.c (ix86_expand_compare): Remove `static'.
	* config/i386/i386.md (trap, conditional_trap): New insn & expand.

2000-08-27  Greg McGary  <greg@mcgary.org>

	* cpplex.c (parse_string): Don't look for backslash
	before first char in `namebuf'.
	* loop.c (strength_reduce): Skip NOTEs.

2000-08-27  Jason Merrill  <jason@redhat.com>

	* c-decl.c (duplicate_decls): Don't set TREE_STATIC or clear
	DECL_EXTERNAL on a local extern.  Don't set DECL_IGNORED_P or
	TREE_ASM_WRITTEN, either.
	(finish_decl): Adjust.

2000-08-28  Philipp Thomas  <pthomas@suse.de>

	* ABOUT-GCC-NLS: Remove gettext patches from Paul Eggert as
	they have been incorporated into the gettext CVS. Change the text to
	reflect the current status of NLS. Add instructions for accessing
	the gettext CVS and add the patch from Martin v. Loewis.

2000-08-27  Geoff Keating  <geoffk@cygnus.com>

	* config/rs6000/rs6000.md (movdi_internal64+5): Make SUBREG-safe
	by using gen_lowpart_common.
	(movdi_internal64+6): Likewise.

2000-08-26  Alexandre Oliva  <aoliva@redhat.com>

	* tm.texi (FINI_SECTION_ASM_OP, CRT_CALL_STATIC_FUNCTION):
	Document.

	* config/mn10300/mn10300.h (DBX_REGISTER_NUMBER): Remap register
	numbers to the ranges used by GDB.

2000-08-25  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.h (struct machine_function): Add n_varargs.
	* config/ia64/ia64.c (ia64_compute_frame_size): Use it.
	(ia64_expand_prologue): Likewise.
	(ia64_setup_incoming_varargs): Set it.  Properly skip the current
	argument for stdargs.

2000-08-25  Jason Merrill  <jason@redhat.com>

	* integrate.c (expand_inline_function): Pull out the original decl.

2000-08-25  Jim Wilson  <wilson@cygnus.com>

	* cse.c (cse_insn): Don't pass label subtraction to force_const_mem.

	* function.c (gen_mem_addressof): Clear MEM_ALIAS_SET if no decl.

2000-08-25  Greg McGary  <greg@mcgary.org>

	* flow.c (dump_edge_info): Use ARRAY_SIZE.
	* config/alpha/alpha.c (alpha_expand_block_move): Likewise.

2000-08-25  Richard Earnshaw  <rearnsha@arm.com>

	* arm.h (STRUCT_VALUE): Define to 0, not NULL.

Fri Aug 25 12:52:49 EDT 2000  John Wehle  (john@feith.com)

	* i386.c (ix86_find_base_term): New.
	* i386-protos.h (ix86_find_base_term): Prototype.
	* i386.h (FIND_BASE_TERM): Define.
	* alias.c (find_base_term): Use it.
	* tm.texi (FIND_BASE_TERM): Document it.

	* alias.c (true_dependence, write_dependence_p): Unchanging
	memory can't conflict with non-unchanging memory.

	* alias.c (memrefs_conflict_p): A BLKmode reference
	to a symbol (or CONST_INT address) always conflicts
	with a reference to another symbol.

2000-08-25  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (time_char_table): Don't allow width and flags with
	"z" format.

2000-08-25  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.c (ix86_expand_branch): Treat GE and GEU the same
	way as LT and LTU when the second operand has 0 in low word.

2000-08-26  Michael Hayes  <mhayes@cygnus.com>

	* basic-block.h (struct loop): Rename `exits' field to
	`exit_edges'.  Add `entry_edges' and `num_entries' fields.

	* flow.c (flow_loop_exit_edges_find): Rename from flow_loop_exits_find.
	(flow_loop_entry_edges_find): Add.
	(flow_edge_list_print): Rename from flow_exits_print.
	(flow_loops_find): Call flow_loop_entry_edges_find.
	(flow_loop_dump): Dump entry_edges list.
	(flow_loops_free): Free entry_edges.
	
2000-08-26  Michael Hayes  <mhayes@cygnus.com>
	
	* loop.c (loop_dump_aux, debug_loop): New functions.
	(LOOP_BLOCK_NUM_1, LOOP_BLOCK_NUM, LOOP_INSN_UID): New macros.

	* flow.c (flow_loops_dump): Add callback parameter.
	(flow_loop_dump): Add callback parameter and call it.  Move
	loop note debugging code to loop_dump_aux.

	* basic-block.h (flow_loop_dump): Add callback parameter
	(flow_loops_dump): Likewise.

	* toplev.c (rest_of_compilation): Add NULL callback function pointer
	to call to flow_loops_dump.
	
2000-08-26  Michael Hayes  <mhayes@cygnus.com>

	* loop.c (count_loop_regs_set): Replace start and end arguments
	with loop argument.  All callers udated.
	
2000-08-26  Michael Hayes  <mhayes@cygnus.com>
	
	* loop.c (constant_high_bytes): Delete.

2000-08-26  Michael Hayes  <mhayes@cygnus.com>

	* loop.c (prescan_loop): Move checks for NOTE_INSN_LOOP_CONT
	and NOTE_INSN_LOOP_VTOP to...
	(find_and_verify_loops) ...here.

Fri Aug 25 04:21:13 2000  Alexandre Oliva  <aoliva@redhat.com>

	* crtstuff.c (CRT_CALL_STATIC_FUNCTION): Define default.
	(fini_dummy, init_dummy): Use it.

Fri 25-Aug-2000 08:03:27 BST  Neil Booth  <NeilB@earthling.net>

	* cpplex.c (is_macro_disabled): Caller has already checked
	that we're not a preprocessed file.

2000-08-24  Mark Mitchell  <mark@codesourcery.com>

	* Makefile.in (C_AND_OBJC_OBJS): Remove c-iterate.o.
	(c-iterate.o): Remove target.
	* gcc/c-common.h (enum rid): Remove RID_ITERATOR.
	* gcc/c-decl.c (init_decl_processing): Remove call to init_iterators.
	(finish_decl): Don't handle iterators.
	(grokdeclarator): Likewise.
	* gcc/c-parse.gperf: Remove __iterator and __iterator__ keywords.
	* gcc/c-gperf.h: Regenerated.
	* gcc/c-iterate.c: Removed.
	* gcc/c-lex.c (init_lex): Don't handle iterators.
	* gcc/c-parse.in (primary): Remove pop_iterator_stack call.
	(compstmt_primary_start): Remove push_iterator_stack call.
	(stmt): Don't allow iterator statements.  Replace iterator_expand
	with expand_expr_stmt.
	(all_iter_stmt): Remove.
	(all_iter_stmt_simple): Likewise.
	(all_iter_stmt_with_decl): Likewise.
	* gcc/c-tree.h (ITERATOR_P): Remove.
	(ITERATOR_BOUND_P): Likewise.
	(init_iterators): Remove declaration.
	(iterator_expand): Likewise.
	(iterator_for_loop_start): Likewise.
	(iterator_for_loop_end): Likewise.
	(iterator_for_loop_record): Likewise.
	(push_iterator_stack): Likewise.
	(pop_iterator_stack): Likewise.
	* gcc/c-typeck.c (decl_constant_value): Don't check ITERATOR_P.
	(readonly_warning): Likewise.
	* gcc/tree.h (ITERATOR_BOUND_P): Don't mention it.
		
2000-08-24  Jim Wilson  <wilson@cygnus.com>

	* c-common.c (decl_attributes, case A_ALIGN): Revert last change.
	Copy type in a TYPE_DECL, just like pushdecl does.

2000-08-24  Richard Henderson  <rth@cygnus.com>

	* toplev.c (main): Enable flag_reorder_blocks at -O2.

2000-08-24  Zack Weinberg  <zack@wolery.cumb.org>

	* ggc-page.c (alloc_page): If HAVE_MMAP_ANYWHERE and we're  
	asked for one page, allocate GGC_QUIRE_SIZE of them and put
	the extras on the free list.
	(release_pages): Clean up.
	(ggc_set_mark): Don't adjust G.allocated here...
	(sweep_pages): ... do it here.

2000-08-24  Zack Weinberg  <zack@wolery.cumb.org>

	* cppfiles.c (read_include_file): Rearrange initializations.

2000-08-24  Richard Henderson  <rth@cygnus.com>

	* stmt.c (expand_asm_operands): Treat EXTRA_CONSTRAINT like g or X.

	* config/ia64/ia64-protos.h: Update.
	* config/ia64/ia64.c (gr_register_operand): New.
	(fr_register_operand, grfr_register_operand): New.
	(gr_nonimmediate_operand, grfr_nonimmediate_operand): New.
	(grfr_reg_or_8bit_operand): New.
	(gr_reg_or_0_operand): Rename from reg_or_0_operand and 
	use gr_register_operand.
	(gr_reg_or_5bit_operand, gr_reg_or_6bit_operand): Likewise.
	(gr_reg_or_8bit_operand, gr_reg_or_8bit_adjusted_operand): Likewise.
	(gr_reg_or_8bit_and_adjusted_operand): Likewise.
	(gr_reg_or_14bit_operand, gr_reg_or_22bit_operand): Likewise.
	(fr_reg_or_fp01_operand): Likewise.
	(not_postinc_memory_operand): New.
	(ia64_split_timode): Remove unused variables.
	(rtx_needs_barrier): Check arguments to cmpxchg.
	(builtin_description): Remove.
	(bdesc_2argsi, bdesc_2argdi): Remove.
	(ia64_init_builtins): Declare all builtins directly.
	(ia64_expand_fetch_and_op): Rewrite to be called from
	ia64_expand_builtin directly.  Use expand_binop and co.
	(ia64_expand_op_and_fetch): Likewise.
	(ia64_expand_compare_and_swap): Likewise.
	(ia64_expand_binop_builtin): Remove.
	(ia64_expand_lock_test_and_set): New.
	(ia64_expand_lock_release): New.
	(ia64_expand_builtin): Use them.
	* config/ia64/ia64.h (CONSTRAINT_OK_FOR_S): New.
	(EXTRA_CONSTRAINT): Use it.
	(PREDICATE_CODES): Update.
	* config/ia64/ia64.md (*): Use gr_register_operand and co.
	(mf): Indicate that we set memory as well as use it.
	(fetchadd_acq_si): Show memory being modified as well.
	(fetchadd_acq_di, cmpxchg_acq_si, cmpxchg_acq_di): Likewise. 
	(val_compare_and_swap_si, val_compare_and_swap_di): Remove.
	(lock_test_and_set_si, lock_test_and_set_di): Remove.
	(fetch_and_add_si, fetch_and_sub_si, fetch_and_or_si): Remove.
	(fetch_and_and_si, fetch_and_xor_si, fetch_and_nand_si): Remove.
	(fetch_and_add_di, fetch_and_sub_di, fetch_and_or_di): Remove.
	(fetch_and_and_di, fetch_and_xor_di, fetch_and_nand_di): Remove.
	(add_and_fetch_di, sub_and_fetch_di, or_and_fetch_di): Remove.
	(and_and_fetch_di, xor_and_fetch_di, nand_and_fetch_di): Remove.
	(add_and_fetch_si, sub_and_fetch_si, or_and_fetch_si): Remove.
	(and_and_fetch_si, xor_and_fetch_si, nand_and_fetch_si): Remove.
	* config/ia64/ia64intrin.h (*): Cast result to the appropriate
	return type.  Pretty print definitions.

2000-08-24  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64.md (movdi): Don't call gen_movdi_symbolic if
	we have a SYMBOL_REF with SYMBOL_REF_FLAG set.

2000-08-24  Jason Merrill  <jason@redhat.com>

	* dwarf2out.c (AT_flag, AT_int, AT_unsigned, AT_string, AT_ref,
	AT_loc, AT_addr, AT_lbl): Abort on unsuitable input.
	(get_AT_low_pc, get_AT_hi_pc, get_AT_string, get_AT_flag, 
	get_AT_unsigned, get_AT_ref): Don't call them if get_AT fails.

2000-08-24  Greg McGary  <greg@mcgary.org>

	* optabs.c (init_optabs): Initialize fixtab, fixtrunctab, floattab,
	and extendtab within their proper array boundaries.
	* emit-rtl.c (init_emit_once): Pass `const_tiny_rtx' with bounds
	for the entire array.

	* config/arm/arm.c (arm_override_options): Use ARRAY_SIZE.
	* config/alpha/alpha.c (alpha_lookup_xfloating_lib_func): Likewise.
	* config/avr/avr.c (order_regs_for_local_alloc): Likewise.
	* config/fr30/fr30.c (fr30_print_operand): Likewise.
	* config/i386/dgux.c (output_options): Likewise.
	* config/i386/dgux.h (ASM_FILE_START): Likewise.
	* config/m88k/m88k.c (output_options): Likewise.
	* config/m88k/m88k.h (ASM_FILE_START): Likewise.
	* config/mcore/mcore.c (mcore_output_inline_const_forced,
	layout_mcore_frame, handle_structs_in_regs): Likewise.
	* config/mips/mips.c (output_block_move): Likewise.
	* config/rs6000/rs6000.c (rs6000_override_options,
	rs6000_file_start): Likewise.
	* config/sparc/sparc.c (sparc_add_gc_roots): Likewise.
	* fixinc/fixfixes.c (FIX_TABLE_CT): Likewise.
	* fixinc/fixtests.c (TEST_TABLE_CT): Likewise.
	* builtins.c (expand_builtin_setjmp): Likewise.
	* expr.c (safe_from_p): Likewise.
	* flow.c (life_analysis): Likewise.
	* fold-const.c (size_int_type_wide): Likewise.
	* gcc.c (translate_options, init_spec, set_spec, main): Likewise.
	* genattrtab.c (make_length_attrs): Likewise.
	* genopinit.c (gen_insn): Likewise.
	* genrecog.c (NUM_KNOWN_PREDS, NUM_SPECIAL_MODE_PREDS): Likewise.
	* global.c (global_alloc): Likewise.
	* local-alloc.c (find_free_reg): Likewise.
	* mips-tdump.c (print_symbol): Likewise.
	* mips-tfile.c (parse_def, parse_input): Likewise.
	* reload1.c (NUM_ELIMINABLE_REGS): Likewise.
	* stmt.c (expand_nl_goto_receiver): Likewise.
	* stor-layout.c (set_sizetype): Likewise.
	* varasm.c (decode_reg_name): Likewise.
	* toplev.c (decode_f_option, decode_W_option,
	set_target_switch, print_switch_values): Likewise.
	(NUM_ELEM): Remove macro.
	(display_help, main): s/NUM_ELEM/ARRAY_SIZE/

2000-08-24  Greg McGary  <greg@mcgary.org>

	* tree.h (enum tree_index): New member `TI_MAIN_IDENTIFIER'.
	(MAIN_NAME_P, main_identifier_node): New macros.
	* c-common.c (c_common_nodes_and_builtins): Init main_identifier_node.
	* c-decl.c (start_decl, grokdeclarator, start_function,
	store_parm_decls, finish_function): Use MAIN_NAME_P.
	* config/avr/avr.c (function_prologue, function_epilogue): Likewise.
	* config/i386/cygwin.h (SUBTARGET_PROLOGUE): Likewise.
	* config/i386/win32.h (SUBTARGET_PROLOGUE): Likewise.
	* config/pdp11/pdp11.c (output_function_prologue): Likewise.

2000-08-24  Greg McGary  <greg@mcgary.org>

	* cppfiles.c (actual_directory): Don't write beyond `dir'
	when it contains "".
	* real.c (asctoeg): Stay within bounds of etens[][].

2000-08-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* dependence.c (dependence_string, direction_string,
	dump_one_node, dump_node_dependence): Hide unused identifiers.
	(get_low_bound, normalize_coefficients): Match definition to
	static prototype.
	(get_one_coefficient): Initialize variables `value0_is_idx' and
	`value1_is_idx'.
	(ziv_test, gcd_test): Mark parameters with ATTRIBUTE_UNUSED.
	(ziv_test): Delete variable `idx', use parameter `sub' instead.
	(direction_merge): Avoid automatic aggregate initialization.
	(have_dependence_p): Use `src' not `dest' to set `src_idx'.
	Initialize variables `dest_idx' and `src_idx'.
	(end_dependence_analysis): Avoid C89 style function definition.

2000-08-24  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (time_char_table): Don't allow width with %F.
	(check_format_info): Don't allow "Z" length with scanf.

2000-08-24  Gabriel Dos Reis  <gdr@codesourcery.com>

	* diagnostic.c (finish_diagnostic): Define.
	(output_do_printf): Use wrap_text instead of output_add_string.
	(default_print_error_function): Avoid embedded '\n'.

	* diagnostic.h (flush_diagnostic_buffer): Declare.

2000-08-23  Alexandre Oliva  <aoliva@redhat.com>

	* dependence.c: Replace `[][]' with `[][MAX_SUBSCRIPTS]'.

2000-08-23  Hans-Peter Nilsson  <hp@axis.com>

	* Makefile.in (GCC_PASSES): Add specs.

2000-08-23  Jim Wilson  <wilson@cygnus.com>

	* frame.h (IA64_UNW_EHANDLER, IA64_UNW_UHANDLER): New.
	* config/ia64/frame-ia64.c (__get_personality): Return zero if neither
	EHANDLER nor UHANDLER bit is set.
	(__get_except_table): Likewise.

2000-08-23  Nick Clifton  <nickc@redhat.com>

	* config/arm/lib1funcs.asm: Replace upper case condition codes
	with lower case versions.

	* config/arm/arm.h (STRUCT_VALUE): Define.
	(STRUCT_VALUE_REGNUM): Delete.

2000-08-23  Zack Weinberg  <zack@wolery.cumb.org>

	* cpphash.h (IN_I): New flag for directive table.
	* cpplib.c (DIRECTIVE_TABLE): Mark #define, #undef, #ident, and
	#pragma with IN_I.
	(_cpp_check_directive): If -fpreprocessed, execute directives
	marked with IN_I.  Issue no warnings in this case.
	* cpplex.c (_cpp_get_token): Expand no macros if -fpreprocessed.

2000-08-23  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (print_char_table): Allow 'I' flag with %d, %i and
	%u.
	(check_format_info): Support printf 'I' flag; warn about it with
	-pedantic.

2000-08-23  Richard Earnshaw  (rearnsha@arm.com)

	* arm.c (arm_expand_prologue): Ensure that the stack-adjustment
	barrier can't be ignored by the alias analysis code.

2000-08-12  Eli Zaretskii  <eliz@is.elta.co.il>

	* fixinc/inclhack.def (sysv68_string): Fix the Sed script so it
	works inside fixincl.

Wed Aug 23 04:55:48 2000  Alexandre Oliva  <aoliva@redhat.com>

	* simplify-rtx.c (simplify_rtx): Don't pass VOIDmode to
	simplify_relational_operation() unless both operands are of
	VOIDmode.
	* cse.c (fold_rtx): Likewise.

Tue Aug 22 23:53:27 EDT 2000  John Wehle  (john@feith.com)

	* rtlanal.c (rtx_unstable_p): The pic register is stable
	(within one function) and the actual rtx should be used
	when checking the registers.
	(rtx_addr_can_trap_p): Pic memory addresses can't trap.

	* alias.c (true_dependence, write_dependence_p): Fix
	bug in previous patch.

	* i386.c (ix86_GOT_alias_set): New.
	(legitimize_pic_address): Use it.

	* rtlanal.c (rtx_unstable_p): An unchanging MEM is
	only stable if its address is stable.
	(rtx_varies_p): An unchanging MEM can't vary if
	its address doesn't vary.

2000-08-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-parse.in (unop +): Restrict -Wtraditional warnings to user code.

2000-08-22  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* vax.h (ASM_SPEC): Pass `-J' to assembler.
	* x-vax-gcc: New file for bootstrapping with gcc.
 	* x-vax: Use X_CFLAGS rather than X_CPPFLAGS to pass `-J'.
	* configure.in: Use x-vax-gcc with gcc.
	* configure: Rebuilt.

Tue Aug 22 21:21:05 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* toplev.c (rest_of_compilation): Rebuild label notes after
	post-reload splitting pass if new labels have been created.

2000-08-22  Gabriel Dos Reis  <gdr@codesourcery.com>

	* diagnostic.h (output_buffer_state): New macro.
	* diagnostic.c (diagnostic_for_decl, sorry,
	default_print_error_function, output_do_verbatim,
	report_diagnostic, report_problematic_module): Use it.
	(wrap_text): Tweak.
	(output_format): Use wrap_text instead of maybe_wrap_text.

2000-08-22  Nick Clifton  <nickc@redhat.com>

	* config/arm/lib1funcs.asm (ARM_DIV_MOD_BODY): New macro.
	Common code for ARM divide and modulus functions.
	(THUMB_DIV_MOD_BODY): New macro. Thumb equivalent of
	ARM_DIV_MOD_BODY.
	(FUNC_END): New macro: Common code at the end of the division and
	modulo functions.
	(THUMB_FUNCTION_START): New macro:  Common code at the start of
	Thumb functions.
	(__divsi3, __udivsi3, __modsi3, __umodsi3): Use new macros.
	
Tue Aug 22 20:34:52 2000  Kaz Kojima <kkojima@rr.iij4u.or.jp>

	* config/sh/sh.md (cmpeqdi_t splitter): Fix a reverse testing.

	* config/sh/sh.c (prepare_scc_operands): Apply force_reg to
	sh_compare_op1 when the mode is DImode and sh_compare_op1 isn't
	const0_rtx.

2000-08-22  Nick Clifton  <nickc@redhat.com>

	* config/arm/lib1funcs.asm (__umodsi3): Before performing any
	restorative additions, test for bottom bits of IP being set,
	rather than relying upon the RORs not matching.
	(__modsi3): Ditto.

2000-08-22  David Edelsohn  <edelsohn@gnu.org>

	* aix.h (ASM_DECLARE_FUNCTION_NAME): Call named_section() or
	text_section() as appropriate instead of emitting text csect
	pseudo-op directly.
	(TEXT_SECTION_ASM_OP): Only require default 32-bit alignment.
	(UNIQUE_SECTION): Define macro.
	(ASM_OUTPUT_SECTION_NAME): Define macro.
	* rs6000.c (rs6000_override_options): Disable -ffunction-sections
	on AIX if debugging and -fdata-sections always.

2000-08-22  Steven King  <sxking@uswest.net>

	* config/float-i386.h (LDBL_EPSILON): Remove __convert_long_double
	machinery.
	(LDBL_MAX): Same here.

2000-08-22  Richard Henderson  <rth@cygnus.com>

	* flow.c (tidy_fallthru_edge): Update b->end properly.

2000-08-22  Stan Cox  <scox@redhat.com>

	* Makefile.in (OBJS): Add dependence.o.
	* dependence.c: New file.
	
2000-08-22  Alexandre Oliva  <aoliva@redhat.com>, John David Anglin  <dave.anglin@nrc.ca>

	* calls.c (check_sibcall_argument_overlap_1): Adjust for
	ARGS_GROW_DOWNWARD.
	(check_sibcall_argument_overlap): Likewise.

2000-08-22  Alexandre Oliva  <aoliva@redhat.com>

	* invoke.texi (SH Options): Document -m4-nofpu,
	-m4-single-only, -m4-single, -m4, -mbigtable, -mfmovd,
	-mhitachi, -mnomacsave, -misize, -mpadstruct, -mspace.

2000-08-22  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (check_format_info): Give the 'some locales' warning
	for strftime %Ey rather than the unconditional 'only last 2 digits
	of year' one.

2000-08-22  Richard Henderson  <rth@cygnus.com>

	* alias.c (init_alias_analysis): Do not register
	struct_value_incoming_rtx or static_chain_rtx as pointing
	to stack memory.

Tue Aug 22 01:44:43 2000  Jeffrey A Law  (law@cygnus.com)

	* protoize.c (munge_compile_params): Fix typo and formatting buglets.

2000-08-22  Gabriel Dos Reis  <gdr@codesourcery.com>

	* diagnostic.h (report_problematic_module): Declare.
	* diagnostic.c (report_problematic_module): New function.
	(report_error_function): Tweak.

Tue Aug 22 02:31:26 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* stmt.c (expand_goto_internal, fixup_gotos): Only check
	TYPE_RETURNS_STACK_DEPRESSED for FUNCTION_TYPE.

2000-08-21  Richard Henderson  <rth@cygnus.com>

	* flow.c (calculate_global_regs_live): Mark frame pointer live
	everywhere before reload.

2000-08-21  Jim Wilson  <wilson@cygnus.com>

	* real.c (ereal_from_int, ereal_from_uint, significand_size): Handle
	INTEL_EXTENDED_IEEE_FORMAT.
	(toe64): Delete INTEL_EXTENDED_IEEE_FORMAT support.  Unconditionally
	clear last two bytes of output FP value.

2000-08-21  Graham Stott  <grahams@cygnus.co.uk>

	* config/ia64/ia64.h (REDO_SECTION_INFO_P): Change decl to DECL.

2000-08-21  Jakub Jelinek  <jakub@redhat.com>

	* unroll.c (loop_find_equiv_value): If ret is modified between
	insn and loop_start, ret might not be equivalent to reg.

2000-08-21  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (init_dollar_format_checking,
	maybe_read_dollar_number, finish_dollar_format_checking): New
	functions.
	(dollar_arguments_used, dollar_arguments_count,
	dollar_first_arg_num, dollar_max_arg_used, dollar_format_warned):
	New variables.
	(check_format_info): Support $ formats for scanf and printf width
	and precision.  Always increment format_chars to advance past the
	'*' of precision, not just when the format parameters are
	available to check.

2000-08-21  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* mips.c (block_move_loop, expand_block_move,
	function_arg_partial_nregs, save_restore_insns, function_prologue,
	mips_expand_prologue, RA_MASK): Avoid using the `U' integer
	constant suffix.
	(function_arg_advance, function_arg): Match argument to format
	specifier `%p'.

2000-08-21  Nix  <nix@esperi.demon.co.uk>

	* gcc.c (do_spec_1): Implement %j spec flag.
	Remove dead comment.

	* gcc.texi (The Configuration File): Document HOST_BIT_BUCKET.
	* system.h (HOST_BIT_BUCKET): Default to "/dev/null".
	* config/i386/xm-dos.h (HOST_BIT_BUCKET): Define as "NUL".
	* config/i386/xm-os2.h, config/winnt/winnt.h: Likewise.

	* protoize.c (munge_compile_params): Use HOST_BIT_BUCKET (if
	writable) instead of hardcoded value.

	* toplev.c (compile_file): Output to a file even if -fsyntax-only.

	* gcc.c, config/i386/xm-dos.h, config/i386/xm-os2.h: Kill
	MKTEMP_EACH_FILE.

	* gcc.c (cc1_options): Do not process -o or run the assembler if
	-fsyntax-only.
	* objc/lang-spec.h: Likewise.

2000-08-21  Eli Zaretskii  <eliz@is.elta.co.il>

	* fixinc/fixincl.c (fix_with_system): Pipe the output of
	"external" fixes through `cat', to avoid truncating the input
	file by redirection.

2000-08-21  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.md (lea_general_1): Copy insn condition to split
	condition.
	(lea_general_2, lea_general_3): Likewise.

2000-08-21  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-decl.c (duplicate_decls, define_label): Restrict -Wtraditional
	warnings to user code.

	* c-lex.c (readescape, yylex): Likewise.

	* c-typeck.c (store_init_value, process_init_element): Likewise
	(c_expand_start_case): Format.

2000-08-18  Maciej W. Rozycki  <macro@ds2.pg.gda.pl>

	* mips/linux.h (LINK_SPEC): Use %(endian_spec).

	* mips/mips.h: Change LINKER_ENDIAN_SPEC to ENDIAN_SPEC
	and linker_endian_spec to endian_spec. 
	(ENDIAN_SPEC): Add %{EB} and %{EL}.
	(LINK_SPEC): Remove %{EB} and %{EL}.
	(ASM_SPEC): Likewise.  Use %(endian_spec). 

2000-08-21  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-tree.h (flag_hosted): Move declaration from here...
	* c-common.h (flag_hosted): ... to here.
	(flag_noniso_default_format_attributes): New declaration.
	* c-decl.c (flag_noniso_default_format_attributes): New variable.
	(c_decode_option): Set it appropriately for options choosing
	language standard variant.
	* c-common.c (init_function_format_info): Only provide default
	format attributes if flag_hosted.  Only provide the gettext
	formats if flag_noniso_default_format_attributes.  Update
	comments.
	(check_format_info): Disable treatment of %a as a scanf flag in
	C99 mode.

2000-08-21  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (scan_char_table): Add 'w' to flags for all formats
	except 'n'.
	(check_format_info): Set 'wide' for scanf format widths.  Warn for
	a zero scanf width.  Make the check for writing into a constant
	object at the first level of indirection; at later levels, warn if
	any type qualifiers are encountered.

Mon Aug 21 07:41:12 2000  Jeffrey A Law  (law@cygnus.com)

	* reload.c (reload_inner_reg_of_subreg): New function broken out of
	push_reload.
	(push_reload): Use reload_inner_reg_of_subreg.
	(combine_reloads): Do not combine reloads if the input reload
	is a SUBREG in which the inner part will need reloading.

	* global.c (global_alloc): Avoid passing dumpfile argument to
	reload routines.
	* toplev.c (rest_of_compilation): Likewise.
	* reload.h (reload): Remove dumpfile argument.  Callers changed.
	(debug_reload, debug_reload_to_stream): Move prototypes here.
	* rtl.h  (reload): Remove dumpfile argument.
	* reload.c (debug_reload): Remove prototype.
	(debug_reload_to_stream): Likewise.
	* reload1.c: Avoid passing dumpfile around, rely on rtl_dump_file
	instead.

2000-08-21  Gabriel Dos Reis  <gdr@merlin.codesourcery.com>

	* diagnostic.c (context_as_prefix): Export.
	(need_error_newline): Remove.
	(lang_diagnostic_starter, lang_diagnostic_finalizer): New objects.
	(error_module_changed, record_last_error_module,
	error_function_changed, record_last_error_function): New functions.
	(initialize_diagnostics): Default intialize
	lang_diagnostic_starter, lang_diagnostic_finalizer.
	(init_output_buffer): Tweak.
	(file_name_as_prefix): New function.
	(announce_function, default_print_error_function,
	report_error_function, set_diagnostic_context): Tweak.

2000-08-21  Richard Earnshaw  <rearnsha@arm.com>

	* flow.c (init_propagate_block_info): Handle SUBREG in a jump
	condition expression.

2000-08-20  Richard Henderson  <rth@cygnus.com>

	* flow.c (merge_blocks_nomove): Don't seek back past the bb note.

2000-08-20  Zack Weinberg  <zack@wolery.cumb.org>

	* cppinit.c (cpp_init): Set global flag when called.
	(cpp_reader_init): Bomb out if cpp_init hasn't been called.

Sun Aug 20 01:41:35 2000  Dennis Chernoivanov  <cdi@sparc.spb.su>

	* cpplex.c (cpp_scan_buffer): Move `output_line_command' just
	before `process_directive' so that newlines won't be missed
	for directives.
	(cpp_printf): Increment `print->lineno' when newline is emitted.

	* cppmain.c (cb_ident): Likewise.
	(cb_define): Likewise.
	(cb_undef): Likewise.
	(cb_include): Likewise.
	(cb_def_pragma): Likewise.
	(dump_macros_helper): Likewise.

2000-08-20  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.c (emit_insn_group_barriers): Stop if ar.lc
	assigned before a loop.

	* config/ia64/ia64.md (ashlsi3): Zero extend the shift count.
	(ashrsi3, lshrsi3): Likewise.

2000-08-20  Gabriel Dos Reis  <gdr@codesourcery.com>

	* c-lang.c: #include diagnostic.h
	(c_tree_printer): New function.
	(lang_init): Initialize lang_printer.

	* Makefile.in (c-lang.o): Depends on diagnostic.h

2000-08-20  Gabriel Dos Reis  <gdr@codesourcery.com>

	* c-errors.c (pedwarn_c99): Adjust call to report_diagnostic.

	* diagnostic.c (default_diagnostic_starter,
	default_diagnostic_finalizer): New functions.
	(diagnostic_for_asm, diagnostic_for_decl): Tweak.
	(pedwarn, pedwarn_with_file_and_line, error,
	error_with_file_and_line, fatal, warning,
	warning_with_file_and_line): Adjust call to report_diagnostic.
	(report_diagnostic): Rework.
	(set_diagnostic_context): New function.

	* diagnostic.h (struct diagnostic_context): New data structure.
	(diagnostic_message, diagnostic_argument_list,
	diagnostic_file_location, diagnostic_line_location,
	diagnostic_is_warning, diagnostic_starter, diagnostic_finalizer,
	diagnostic_finalizer, diagnostic_auxiliary_data): New macros.
	(set_diagnostic_context): Declare.
	(report_diagnostic): Change prototype.

Sun 20-Aug-2000 09:25:45 BST  Neil Booth  <NeilB@earthling.net>

	* fix-header.c (main): Initialize cpplib.

2000-08-19  Michael Meissner  <meissner@redhat.com>

	* ifcvt.c (find_if_block): Do not assume that a THEN block has any
	instructions in it before checking for indirect jumps.

	* ifcvt.c (find_if_block): Do not consider a THEN block that ends
	in a indirect jump as a potential for conditional execution.

	* d30v.h (d30v_init_expanders): Don't declare here.
	* d30v-protos.h (d30v_init_expanders): Declare here with a valid
	prototype.

Sat 19-Aug-2000 21:11:45 BST  Neil Booth  <NeilB@earthling.net>

	* cpp.texi: Add @section for assertions.

Sat Aug 19 12:37:08 EDT 2000  John Wehle  (john@feith.com)

	* loop.c (scan_loop): Use CONST_CALL_P instead of
	checking for REG_LIBCALL / REG_RETVAL.

Sat Aug 19 09:18:47 2000  Jeffrey A Law  (law@cygnus.com)

	* reload1.c (reload_as_needed): Accept dumpfile argument,
	pass it to emit_reload_insns.
	(emit_reload_insns): Add new dumpfile argument.  If non-null
	then dump the reloads for each insn into the dumpfile.
	(reload): Pass dumpfile to reload_as_needed.

	* invoke.texi: Clean up linux-gnu vs linux comments.

2000-08-19  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.c (reg_or_5bit_operand): New.
	(ia64_depz_field_mask): New.
	* config/ia64/ia64.h (CONSTRAINT_OK_FOR_R): New.
	(PREDICATE_CODES): Update.
	* config/ia64/ia64.md: Update commentary.
	(depz_internal): New.
	(ashlsi3): Implement directly.
	(ashrsi3, lshrsi3): Simplify; rely on extv and extzv for constants.
	(ashldi3): Use shladd.
	* config/ia64/ia64-protos.h: Update.

2000-08-18  Zack Weinberg  <zack@wolery.cumb.org>

	* toplev.c (independent_decode_option): Always process -g.
	Remove third argument, now unused.  Adjust caller to match.

2000-08-18  Richard Henderson  <rth@cygnus.com>

	* combine.c (make_compound_operation): Break after creating
	the extraction.

2000-08-18  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.c (cpp_register_pragma_space): Just return if the
	namespace is already registered.

2000-08-18  Ray Essick <essick@ddna.labs.mot.com> & Nick Clifton  <nickc@redhat.com>

	* config/mcore/mcore.md (rotlsi3): Allow allow rotations by a
	constant amount.  Do not generate ROTL instruction.

Fri Aug 18 16:22:20 2000  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/elf.h: Do not include sh/sh.h.
	* config/sh/rtems.h: Likewise.
	* config/sh/rtemself.h: Do not include sh/elf.h.
	* configure.in: Get them included with `tm_file's.
	* configure: Rebuilt.

	* config/sh/sh.md (fpu_switch0, fpu_switch1): Simplify.
	* config/sh/sh.c (fpscr_set_from_mem): Use them.

Fri Aug 18 14:23:18 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* stor-layout.c (compute_record_type): Don't use mode of single
	field as mode of record if not integer mode of same type.

	* regmove.c (perhaps_ends_bb_p): New function.
	(optimize_reg_copy_1, optimize_reg_copy_2): Call it.
	(optimize_reg_copy_3, fixup_match_2, regmove_optimize): Likewise.
	(fixup_match_1): Likewise.
	(fixup_match_1, combine_stack_adjustments_for_block): Add casts to
	avoid signed/unsigned warnings.
	
	* function.c (fixup_var_refs_1, case MEM): Update CODE after
	updating X.

Fri 18-Aug-2000 18:33:45 BST  Neil Booth  <NeilB@earthling.net>

	* cpphash.h: Use HAVE_DESIGNATED_INITIALIZERS.
	(_cpp_trigraph_map): Declaration moved from cpplex.c

	* cppinit.c: Define _cpp_trigraph_map.  Use UCHAR_MAX + 1
	instead	of 256.  Use consistent test for designated initializers.
	(cpp_init): Initialize trigraph_map.
	(initialize_standard_includes, parse_option):  Use memcmp
	instead of strncmp.

	* cpplex.c (init_trigraph_map): Remove.
	(trigraph_ok, trigraph_replace, lex_line): Refer to
	_cpp_trigraph_map.

	* cpplib.c (str_match, WARNING, ERROR, ICE): Delete.
	(do_unassert): Remove unused "next" local.

	* system.h (HAVE_DESIGNATED_INITIALIZERS): New prototype.

2000-08-18  Emmanuel Marty  <emarty@suntech.fr>

	* arm/lib1funcs.asm (_umodsi3 THUMB VARIANT): Restore deleted return
	insn.

2000-08-17  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.c (spill_restore_mem): Handle emitting
	the first insn in a sequence.

Thu Aug 17 22:40:05 EDT 2000  John Wehle  (john@feith.com)

	* alias.c (true_dependence, write_dependence_p): A read
	involving a label_ref or the constant pool doesn't create
	a dependency.

	* rtl.h (unchanging): Improve documentation.

2000-08-17  Rodney Brown  <RodneyBrown@mynd.com>

	* cse.c (insert_regs): Remove unused `regno'.

2000-08-17  Neil Booth  <NeilB@earthling.net>

	* (cppinit.c) merge_include_chains: Use remove_dup_dir,
	remove_dup_dirs.  If qtail == brack, remove brack not
	qtail.
	(remove_dup_dir, remove_dup_dirs): New functions.

2000-08-17  Neil Booth  <NeilB@earthling.net>

	* cppinit.c (cpp_cleanup): Free include dir chains.
	* cpplib.c (do_undef): Let _cpp_free_definition make the node void.
	(do_unassert): Free the assert with _cpp_free_definition.
	* cppmacro.c (_cpp_free_definition): Free memory allocated for
	assertions.  Make the node a T_VOID node.

2000-08-17  Neil Booth  <NeilB@earthling.net>

	* cppinit.c (path_include, append_include_chain):
	Remove 2nd parameter (struct cpp_pending *).
	(path_include, initialize_standard_includes, cpp_handle_option):
	Update callers appropriately.
	(cpp_handle_option): Use pend.

2000-08-17  Neil Booth  <NeilB@earthling.net>

	* cppinit.c (sort_options): Remove, put functionality in
	cpp_init.
	(cpp_init): New.
	(initialize_builtins): Free memory.
	(cpp_start_read): Move init_IStable to cpp_init.

	* cpplib.h (cpp_init): New prototype.
	* cppmain.c (main): Call cpp_init.

Thu Aug 17 13:20:32 EDT 2000  John Wehle  (john@feith.com)

	* rtlanal.c (rtx_unstable_p): Use CONSTANT_P.
	(rtx_unstable_p, rtx_varies_p): Process vectors.

2000-08-16  Niibe Yutaka  <gniibe@m17n.org>, Kaz Kojima  <kkojima@rr.iij4u.or.jp>

	* config/sh/lib1funcs.asm (GLOBAL): Define.  Use for all
	references to GLOBAL symbols.  Use LOCAL where appropriate.

2000-08-16  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* configure.in (*-ibm-aix4.[12]*): Delete test for gnu ld.  Always
	use t-aix41 when host == target.

2000-08-16  Richard Henderson  <rth@cygnus.com>

	* reload.c (push_secondary_reload): Revert last change.
	If we use a reload_in/out pattern, make the when the same
	as the primary reload.
	(find_reloads): Likewise.

2000-08-16  Manfred Hollstein  <manfredh@redhat.com>

	* configure.in (libstdcxx-v3): Fix test.
	* configure: Regenerate.

Wed Aug 16 08:10:32 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* calls.c (calls_function_1, expand_call): Only test
	TYPE_RETURNS_STACK_DEPRESSED for FUNCTION_TYPE.
	* function.c (thread_prologue_and_epilogue_insns): Likewise.

2000-08-16  Richard Henderson  <rth@cygnus.com>

	* combine.c (simplify_shift_const): Revert previous two
	changes.  If SHIFT_COUNT_TRUNCATED, crop the shift count
	before the main loop.

2000-08-15  Richard Henderson  <rth@cygnus.com>

	* combine.c (simplify_shift_const): Bound shift count when
	combining shifts.

Tue Aug 15 17:33:05 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* calls.c (ECF_SP_DEPRESSED): New macro.
	(calls_function_1): Treat calling sp-depressed function as alloca.
	(emit_call_1): Don't adjust SP if calling sp-depressed function.
	(expand_call): Set ECF_SP_DEPRESSED if TYPE_RETURNS_STACK_DEPRESSED.
	If sp-depressed, ensure block saves and restores SP.
	* fold-const.c (extract_muldiv): Only check TYPE_IS_SIZETYPE
	for INTEGER_TYPE.
	* function.c (keep_stack_depressed): New function.
	(thread_prologue_and_epilogue_insns): Call it.
	* print-tree.c (print_node): Use HOST_WIDE_INT_PRINT_UNSIGNED
	to print DECL_OFFSET_ALIGN.
	Print no-force-blk and transparent-union flags properly.
	* stmt.c (expand_goto_internal): Don't restore stack if last block
	and function returns with sp depressed.
	(fixup_gotos): Likewise.
	(save_stack_pointer): New function, from code in expand_decl.
	(expand_decl): Call new function.
	* tree.h (TYPE_IS_SIZETYPE): Call INTEGER_TYPE_CHECK.
	(TYPE_RETURNS_STACK_DEPRESSED): New macro.
	(save_stack_pointer): New declaration.

	* diagnostic.c (fatal_function): New variable.
	(set_fatal_function): New function.
	(fatal): Call it.
	* diagnostic.h (set_fatal_function): New declaration.

2000-08-15  William Cohen  <wcohen@redhat.com>

	* config/sh/elf.h (DWARF2_DEBUGGING_INFO): Defined.
	(PREFERRED_DEBUGGING_TYPE): Set to dwarf2 info.
	(DWARF2_ASM_LINE_DEBUG_INFO): Defined.

2000-08-15  Richard Henderson  <rth@cygnus.com>

	* flow.c (mark_used_reg): Set reg_cond_reg appropriately.

2000-08-15  Richard Earnshaw <rearnsha@arm.com>

	* arm.c (arm_function_ok_for_sibcall): New function.
	* arm.h (FUNCTION_OK_FOR_SIBCALL): Define.
	* arm.md (call expanders): Don't check here for calls that can't
	be sibling calls.

2000-08-15  Richard Earnshaw <rearnsha@arm.com>

	* arm.md (splits generating cond_exec): Disable.

2000-08-15  Richard Earnshaw <rearnsha@arm.com>

	* arm/linux-elf.h (text_section): Delete declaration.

2000-08-15  Richard Earnshaw <rearnsha@arm.com>

	ARM support for unordered FP operations.
	* arm-protos.h (arm_comparison_operator): Declare.
	* arm.c (arm_comparison_operator): New function.
	(arm_select_cc_mode): Add unordered comparison codes.
	(get_arm_condition_code): Likewise.
	(arm_final_prescan_insn): Can't handle unordered jumps that can't
	be done in one insn.
	* arm.h (PREDICATE_CODES): Add arm_comparison_operator.
	* arm.md (all uses of comparison_operator): Replace with
	arm_comparison_operator.
	(bunordered, bordered, bugt, bunlt, bunge, bunle, buneq, bltgt): New
	expands.
	(arm_buneq, arm_bltgt, arm_buneq_reversed, arm_bltgt_reveresed): New
	patterns.
	
Tue Aug 15 00:36:36 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

	* gthr-posix.h: Conditionally include <sched.h>; include
	<config.h> from libobjc/.

2000-08-14  Richard Henderson  <rth@cygnus.com>

	* config/i386/i386.c (legitimize_pic_address): Use Pmode
	for all CONSTs.

2000-08-14  Richard Henderson  <rth@cygnus.com>

	* configure.in (ia64-*): Set float_format for i386 long double.

	* real.c (GET_REAL): Treat 128-bit INTEL_EXTENDED_IEEE_FORMAT
	as we would for i386 XFmode.
	(PUT_REAL): Likewise.
	(endian, ereal_atof, real_value_truncate): Likewise.
	(ereal_isneg, toe64, etens, make_nan): Likewise.
	* real.h (REAL_VALUE_TO_TARGET_LONG_DOUBLE): Likewise.

	* config/ia64/ia64-protos.h: Update.
	* config/ia64/ia64.c (general_tfmode_operand): New.
	(destination_tfmode_operand): New.
	(tfreg_or_fp01_operand): New.
	(ia64_split_timode): New.
	(spill_tfmode_operand): New.
	(ia64_expand_prologue): Use TFmode not XFmode.
	(ia64_expand_epilogue): Likewise.
	(ia64_function_arg): Likewise.
	(ia64_function_arg_advance): Likewise.
	(ia64_return_in_memory): Likewise.
	(ia64_function_value): Likewise.
	(ia64_print_operand): Likewise.
	(ia64_register_move_cost): Set GR<->FR to 5.
	(ia64_secondary_reload_class): Get GR for TImode memory op.
	* config/ia64/ia64.h (ROUND_TYPE_SIZE): Remove.
	(ROUND_TYPE_ALIGN): Remove.
	(LONG_DOUBLE_TYPE_SIZE): Set to 128.
	(INTEL_EXTENDED_IEEE_FORMAT): Define.
	(HARD_REGNO_NREGS): Use TFmode, not XFmode.
	(HARD_REGNO_MODE_OK): Likewise.  Disallow TImode in FRs.
	(MODES_TIEABLE_P): Use TFmode, not XFmode.
	(CLASS_MAX_NREGS): Likewise.
	(ASM_OUTPUT_LONG_DOUBLE): Output by 4 byte hunks.
	(PREDICATE_CODES): Update.
	* config/ia64/ia64.md (movti): New.
	(movti_internal): Use a clobber for memory alternatives.
	(reload_inti, reload_outti): New.
	(movsfcc_astep): Predicate properly.
	(movdfcc_astep): Likewise.
	(movxf): Remove.
	(movtf): New.
	(extendsftf2, extenddftf2): New.
	(trunctfsf2, trunctfdf2): New.
	(floatditf2, fix_trunctfdi2): New.
	(floatunsditf2, fixuns_trunctfdi2): New.
	(addtf3, subtf3, multf3, abstf2): New.
	(negtf2, nabstf2, mintf3, maxtf3): New.
	(maddtf3, msubtf3, nmultf3, nmaddtf3): New.
	(cmptf): New.
	(fr_spill): Use TFmode, not XFmode.
	(fr_restore): Likewise.
	* config/ia64/lib1funcs.asm (__divtf3): New.
	* config/ia64/t-ia64 (LIB1ASMFUNCS): Add it.

2000-08-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* cse.c (fold_rtx): Avoid empty body in an if-statement.
	
	* doloop.c (doloop_iterations_max, doloop_modify): Avoid using the
	`U' integer constant suffix.

	* dwarf2out.c (add_subscript_info): Avoid empty body in an
	else-statement.

	* sparc/sol2.h (__enable_execute_stack): Prototype.

2000-08-14  David Edelsohn  <edelsohn@gnu.org>

	* collect2.c: Remove use of AIX import file.

	* longlong.h: Test ARCH_PWR not ARCH_POWER.

	* rs6000.c (print_operand, case 'E'): Add else.

2000-08-14  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.md (movdi): Delay calling ia64_expand_load_address.
	(movdi_symbolic): New.

2000-08-14  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64.h (ASM_SPEC): Pass -mconstant-gp and -mauto-pic
	to GNU as.  For Intel as, pass -M const_gp and -M no_plabel.
	* config/ia64/linux.h (ASM_SPEC): Pass -mconstant-gp and -mauto-pic
	to GNU as.

2000-08-14  Richard Henderson  <rth@cygnus.com>

	* expr.c (emit_group_load): Don't force constants into registers.
	Special case source already in the correct mode.

2000-08-14  Zack Weinberg  <zack@wolery.cumb.org>

	* configure.in: Accept *-*-linux* not just *-*-linux-gnu*.
	* fixinc/inclhack.def: Likewise.
	* fixinc/mkfixinc.sh: Likewise. 
	* configure: Regenerate.
	* fixinc/fixincl.x: Regenerate.
	* install.texi: Document equivalence of linux and linux-gnu.

Mon Aug 14 18:51:44 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* cse.c (insert_regs): Also in REG case: When finding an invalid
	value, and we make a new quantity, make sure that it won't be
	mistaken by for a valid one by mention_regs.