configure.in: Comment out --enable-c-cpplib stanza.

[thirdparty/gcc.git] / gcc / ChangeLog

2000-03-30  Zack Weinberg  <zack@wolery.cumb.org>

	* configure.in: Comment out --enable-c-cpplib stanza.
	* configure: Regenerate.

Thu Mar 30 06:32:51 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* expr.c (store_constructor): Properly compute displacement and
	alignment when offset is variable.

	* expmed.c (store_bit_field, store_fixed_bit_field): Fix more
	cases of alignment in bytes.

Thu Mar 30 13:30:40 2000  Jeffrey A Law  (law@cygnus.com)

	* function.c (expand_function_end): Pass alignment argument to
	emit_block_move in bits, not bytes.

Thu Mar 30 06:32:51 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* expr.c (move_by_pieces_ninsns): Fix one more missing align
	correction.

	* expmed.c (store_fixed_bit_field): STRUCT_ALIGN is in bits.

	* calls.c (expand_call): Pass bit alignment to mark_reg_pointer.
	* explow.c (memory_address, allocate_dynamic_stack_space): Likewise.
	* function.c (assign_parms): Likewise.
	* integrate.c (expand_inline_function): Likewise.
	* stmt.c (expand_decl): Likewise.
	(copy_rtx_and_substitute): Likewise.
	* expr.c (expand_expr, expand_expr_unaligned): Likewise.
 	(clear_by_pieces): Fix error in last change.
	* emit-rtl.c (init_emit): Set known registers alignment in bits.
	* function.h (regno_pointer_align): Now unsigned.
	* config/arm/arm.c (alignable_memory_operand): REGNO_POINTER_ALIGN
	is in bits.
	* config/i386/i386.c (aligned_operand): Likewise.
	* config/sparc/sparc.c (mem_min_alignment): Likewise.
	* config/alpha/alpha.c (aligned_memory_operand): Likewise.
	(unaligned_memory_operand): Likewise.
	(alpha_expand_block_move, alpha_expand_block_clear): Likewise.
	Also make alignments and sizes unsigned and some whitespace cleanup.
	(alpha_va_start): Do nothing if VALIST's type is error_mark_node.

	* builtins.c (get_pointer_alignment): Use host_integerp & tree_low_cst.
	(expand_builtin_apply): Pass alignment to emit_block_move in bits.
	(expand_builtin_memcpy, expand_builtin_va_copy): Likewise.
	(expand_builtin_memset): Likewise, but to clear_storage.
	* calls.c (save_fixed_argument_area): Likewise, to move_by_pieces.
	(restore_fixed_argument_area): Likewise.
	(store_unaligned_arguments_into_pseudos): Likewise, to store_bit_field.
	(load_register_parameters): Likewise, to emit_group_load.
	(expand_call): Likewise, to emit_group_store and emit_block_move.
	(emit_library_call_value_1): Likewise, to emit_block_move.
	(store_one_arg): Likewise, and to emit_push_insn.
	* expmed.c (extract_bit_field): Alignment is in bits, not bytes.
	(extract_fixed_bit_field, extract_split_bit_field): Likewise.
	* expr.c (move_by_pieces, move_by_pieces_ninsns): Likewise.
	(emit_block_move, emit_group_load, emit_group_store): Likewise.
	(clear_by_pieces, clear_storage, emit_push_insn): Likewise.
	(expand_assigment, store_expr, store_constructor_field): Likewise.
	(expand_expr_unaligned, do_jump, do_compare_and_jump): Likewise.
	(store_constructor, store_field, get_inner_reference): Likewise.
	Use host_integerp and tree_low_cst; sizes and positions HOST_WIDE_INT.
	(expand_expr, case COMPONENT_REF): Likewise.
	(copy_blkmode_from_regs): Use UNSIGNED_HOST_WIDE_INT for sizes
	and positions; reindent code.
	* expr.h (emit_cmp_insn, emit_cmp_and_jump_insns): Alignment unsigned.
	* function.c (purge_addressof_1): Pass bit align to store_bit_field.
	(assign_parms): Likewise to emit_group_store.
	* optabs.c (prepare_cmp_insn): Alignment is in bits.
	(emit_cmp_and_jump_insns, emit_cmp_insn): Likewise, and also unsigned.
	* stmt.c (expand_value_return): Pass align in bits to emit_group_load.
	(expand_return): Likewise to {extract,store}_bit_field.
	* stor-layout.c (get_mode_alignment): Minor cleanup.
	* config/rs6000/rs6000.h (SLOW_UNALIGNED_ACCESS): Align is in bits.
	* config/sh/sh.h (MOVE_BY_PIECES_P): Likewise.
	
2000-03-29  Nick Clifton  <nickc@cygnus.com>

	* config/arm/arm.h: Undo effects of previous delta:
	(ASM_SPEC): Do not define.
	(SUBTARGET_EXTRA_ASM_SPEC): Do not define.

	* config/arm/linux-elf.h: (SUBTARGET_EXTRA_ASM_SPEC) Fix
	typo. 

2000-03-29  Zack Weinberg  <zack@wolery.cumb.org>

	* cppinit.c (cpp_start_read): Call initialize_dependency_output
	only after reading in the primary source file.

2000-03-29  Geoff Keating  <geoffk@cygnus.com>

	* c-common.c (c_common_nodes_and_builtins): The first parameter to
	__builtin_va_start and __builtin_va_copy is now either a 'va_list'
	or a reference to a va_list.
	* builtins.c (stabilize_va_list): Simplify now we don't have to
	work around C array address decay.
	* c-typeck.c (convert_for_assignment): Handle assignment to
	a reference parameter by taking the address of the RHS.
	* ginclude/stdarg.h (va_start): Don't take address of first parameter.
	(va_copy): Likewise.
	(__va_copy): Likewise.
	* ginclude/varargs.h (va_start): Likewise.
	(__va_copy): Likewise.

Wed Mar 29 15:44:53 2000  Jeffrey A Law  (law@cygnus.com)

	* i386/djgpp.h: Remove extraneous "+".

	* stmt.c (stmt_loop_nest_empty): Fix thinko in last change.

	* calls.c (expand_call): Fix typo in last change.

2000-03-29  Jason Merrill  <jason@casey.cygnus.com>

	* tree.c (unsave_expr_1): Don't mess with a TARGET_EXPR that hasn't
	been expanded.

Wed Mar 29 15:39:10 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* stor-layout.c (bit_from_pos, byte_from_pos): New functions.
	(pos_from_byte, pos_from_bit, normalize_offset): Likewise.
	(normalize_rli, rli_size_so_far, rli_size_unit_so_far): Use them.
	* tree.c (bit_position, byte_position): Likewise.
	* tree.h: Declare new functions.

2000-03-29  Nick Clifton  <nickc@cygnus.com>

	* config/arm/arm.c: Minor formatting changes/
	* config/arm/arm.h (SUBTARGET_EXTRA_ASM_SPEC): Define if not
	already defined.
	(ASM_SPEC): Define if not already defined.

2000-03-29  Zack Weinberg  <zack@wolery.cumb.org>

	* cppfiles.c (cpp_read_file): Don't pass zero-length string to
	_cpp_calc_hash.

2000-03-29  Jakub Jelinek  <jakub@redhat.com>

	* dwarf2out.c (gen_enumeration_type_die): If enum has a negative
	value, don't output it as unsigned.

Wed Mar 29 10:53:49 2000  Jeffrey A Law  (law@cygnus.com)

	* stmt.c (stmt_loop_nest_empty): Allow cfun->stmt to be NULL.

2000-03-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-common.c (c_common_nodes_and_builtins): Don't special case
	cplus_mode when declaring builtin bzero/bcmp, always avoid
	prototype arguments.

2000-03-29  Bruce Korb  <bkorb@gnu.org>

	* fixinc/mkfixinc.sh: Initially set the variable "fixincludes"
	to a non-file

Wed Mar 29 15:08:01 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	Convert ACCUMULATE_OUTGOING_ARGS to an expression.
	* calls.c (PUSH_ARGS_REVERSED) Change to expression.
	(ACCUMULATE_OUTGOING_ARGS, PUSH_ARGS): Provide default value.
	(struct arg_data): Remove #ifdef ACCUMULATE_OUTGOING_ARGS.
	(save_fixed_argument_area, restore_fixed_argument_area):
	conditionize by #ifdef REG_PARM_STACK_SPACE only.
	(emit_call): Change #ifdefs on ACCUMULATE_OUTGOING_ARGS
	to conditions, handle RETURN_POPS_ARGS on ACCUMULATE_OUTGOING_ARGS.
	(precompute_register_parameters): Avoid #ifdefs on
	ACCUMULATE_OUTGOING_ARGS and PUSH_ARGS_REVERSED.
	(stire_one_args): Likewise.
	(expand_call): Likewise; conditionize PUSH_ROUNDING code by PUSH_ARGS.
	(emit_library_call_value_1): Likewise.
	(compute_argument_block_size): Align to STACK_BOUNDARY only for
	ACCUMULATE_OUTGOING_ARGS.
	* combine.c (ACCUMULATE_OUTGOING_ARGS, PUSH_ARGS): Provide default
	value.
	(nonzero_bits): Conditionize PUSH_ROUNDING code by USE_PUSH.
	(use_crosses_set_p): Likewise.
	* all targets (ACCUMULATE_OUTGOING_ARGS define): Change to
	#define ACCUMULATE_OUTGOING_ARGS 1.
	* i386.c (ix86_compute_frame_size): Handle ACCUMULATE_OUTGOING_ARGS
	frames.
	* i386.h (MASK_NO_PUSH_ARGS, MASK_ACCUMULATE_OUTGOING_ARGS): New
	constants.
	(TARGET_PUSH_ARGS, TARGET_ACCUMULATE_OUTGOING_ARGS): New macros.
	(TARGET_SWITCHES): Add push-args, no-push-args,
	accumulate-outgoing-args and no-accumulate-outgoing-args.
	(ACCUMULATE_OUTGOING_ARGS, PUSH_ARGS): New macro.
	* expr.c (ACCUMULATE_OUTGONG_ARGS, PUSH_ARGS): Provide default.
	(push_block): Avoid ifdefs on ACCUMULATE_OUTGONG_ARGS
	and PUSH_ROUNDING.
	(emit_push_insn): Likewise.
	* final.c (ACCUMULATE_OUTGOING_ARGS): Provide default.
	(final_scan_insn): Avoid ifdefs on ACCUMULATE_OUTGOING_ARGS.
	* function.c (ACCUMULATE_OUTGOING_ARGS): Provide default.
	(STACK_DYNAMIC_OFFSET): Define correctly for both
	ACCUMULATE_OUTGOING_ARGS and normal mode.
	* invoke.texi (-mpush_args, -maccumulate-outgoing-args): Document.
	* tm.texi (PUSH_ARGS): Document.
	(ACCUMULATE_OUTGOING_ARGS, PUSH_ROUNDING): Update documentation.

Wed Mar 29 11:51:13 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* flags.h (flag_optimize_sibling_calls): Declare.
	* calls.c (expand_call): Fail sibcall when
	!flag_optimize_sibling_calls
	* invoke.texi (flag_optimize_sibling_calls): Document.
	* toplev.c (flag_optimize_sibling_calls): New global variable.
	(f_options): Add flag_optimize_sibling_calls.
	(rest_of_compilation): Conditionize
	optimize_sibling_and_tail_recursive_calls by
	flag_optimize_sibling_calls.
	(main): Set flag_optimize_sibling_calls for -O2.
	* stmt.c (expand_return): Conditionize tail recursion by
	flag_optimize_sibling_calls.

2000-03-29  Richard Henderson  <rth@cygnus.com>

	* config/i386/att.h (LOCAL_LABEL_PREFIX): Define.
	(ASM_GENERATE_INTERNAL_LABEL, ASM_OUTPUT_INTERNAL_LABEL): Use it.

2000-03-29  Nathan Sidwell  <nathan@codesourcery.com>

	* except.c (add_eh_table_entry): Mark type_info's as referenced.	

2000-03-29  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

	* config/rs6000/aix41.h (CPP_SPEC): Define _ANSI_C_SOURCE if -ansi
	is given.
	* config/rs6000/aix43.h (CPP_SPEC): Likewise.
	* config/rs6000/rs6000.h (CPP_SPEC): Moved to...
	* config/rs6000/aix.h: then modified likewise.

2000-03-28  Richard Henderson  <rth@cygnus.com>

	* rtl.h: Redistribute enum reg_note documentation. 
	Kill trailing whitespace.
	* rtl.c (reg_note_name): Adjust to match enum reg_note tweeks.
	Kill trailing whitespace.

2000-03-28  Zack Weinberg  <zack@wolery.cumb.org>

	* cppfiles.c (hash_IHASH): Just return i->hash.
	(cpp_included): Set dummy.hash using _cpp_calc_hash.  Use
	htab_find_with_hash.
	(cpp_read_file): Likewise.
	(find_include_file): Likewise.  Properly initialize
	ih->nshort.  Share ih->name and ih->nshort if possible.
	* cpphash.c (_cpp_calc_hash): New function.
	(hash_HASHNODE): Just return h->hash.
	(_cpp_lookup): Set dummy.hash using _cpp_calc_hash.  Use
	htab_find_with_hash.
	* cpphash.h: Prototype _cpp_calc_hash.
	* cppinit.c (initialize_builtins): Provide a valid hash
	to _cpp_make_hashnode, using _cpp_calc_hash.

	* cpphash.c (collect_expansion): # is not a special character
	in object-like macros.  In -traditional mode, /**/ is not
	token paste at the beginning or end of the line.
	* cpplib.c (do_include, do_import, do_include_next): If
	parse_include fails, return immediately.

2000-03-28  Jason Merrill  <jason@casey.cygnus.com>

	* config/arm/arm.md (return peepholes): Update to reflect the new
	call insn patterns.
	* config/arm/arm.c (arm_volatile_func): Also check
	current_function_nothrow.
	(output_return_instruction, output_func_prologue): Use it.
	(arm_output_epilogue, arm_expand_prologue): Likewise.

2000-03-27  Tom Tromey  <tromey@cygnus.com>

	* gcc.c (handle_braces): In {x*...} case, break out of loop if
	switch is found.

Tue Mar 28 11:55:48 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* expr.c (store_constructor): SIZE now signed.
	For EXPR_SIZE, don't evaluate size; just needed if constant.
	* fold-const.c (fold): Fix a number of cases when folded tree is
	wrong type.
	* function.c (flush_addressof): Reenable.
	* tree.h (flush_addressof): Likewise.
	* toplev.c (independent_decode_option): Look at strings_processed.
	* config/alpha/alpha.h (MINIMUM_ATOMIC_ALIGNMENT): Cast to unsigned.

Tue Mar 28 08:29:46 2000  Jan Hubicka  <jh@suse.cz>

	* sibcall.c (indentify_call_return_value): Find last call in the chain;
	Allow stack adjustment after function call.

	* regmove.c (struct csa_memlist): Make mem field rtx *.
	(record_one_stack_ref): Accept rtx * instead of rtx as parameter.
	(try_apply_stack_adjustment): Replace whole MEM rtx.
	(combine_stack_adjustments_for_block): Update calls
	to record_one_stack_ref.

2000-03-28  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (_cpp_read_and_prescan): Mark end of input buffer with
	'\\' rather than a null character, so nulls are not special.  Fix
	"\\\n" handling in end-of-buffer conditions.  Use trigraph map to
	speed trigraph conversion.
        (_cpp_init_input_buffer): Initialize trigraph map.

2000-03-27  Alan Modra  <alan@linuxcare.com.au>

	* config/i386/i386.c (output_387_binary_op): Correct intel
	mode assembly output, and add spaces after commas in AT&T
	output.  Correct Unixware assembler comment.  Document input
	constraints.  Comment fp operations.  Reduce profligate buffer
	size.  Remove extraneous abort.  Localize temp var.
	(SYSV386_COMPAT): Define.  Add !SYSV386_COMPAT code.
	(output_fix_trunc): Add spaces after commas in assembly output.

2000-03-27  Richard Henderson  <rth@cygnus.com>

	* i386-protos.h (ix86_match_ccmode): Declare.
	* i386.c (ix86_match_ccmode): New.
	(ix86_expand_fp_compare): Update for pattern renames.
	(ix86_expand_strlensi_unroll_1): Likewise.
	* i386.h (EXTRA_CC_MODES): Add CCZ.
	(SELECT_CC_MODE): Use it for EQ/NE zero.
	* i386.md (cmpsi_ccz_1): New.
	(cmpqi_ccz_1): New.
	(*testsi_ccz_1): New.
	(testqi_ccz_1): New.
	(cmpsi_ccno_1): Rename from cmpsi_0.
	(testsi_ccno_1): Rename from testsi_1.
	(testqi_ccno_1): Rename from testqi_1.
	(*testqi_ext_ccz_0): Rename from testqi_ext_0.
	(testqi_ext_ccno_0): Rename from *testqi_ext_1.
	(*cmphi_0): Use ix86_match_ccmode.
	(*cmpqi_ext_2, *addsi_2, *addhi_2, *addqi_2): Likewise.
	(*subsi_2, *subhi_2, *subqi_2, *testhi_1): Likewise.
	(*testqi_ext_1, *testqi_ext_2, *testqi_ext_3): Likewise.
	(*andsi_2, *andhi_2, *andqi_2, *andqi_ext_0_cc): Likewise.
	(*iorsi_2, *iorhi_2, *iorqi_2): Likewise.
	(*xorsi_2, *xorhi_2, *xorqi_cc_1): Likewise.
	(*one_cmplsi2_2, *one_cmplhi2_2, *one_cmplqi2_2): Likewise.
	(*ashlsi3_cmpno, *ashlhi3_cmpno, *ashlqi3_cmpno): Likewise.
	(*ashrsi3_cmpno, *ashrhi3_cmpno, *ashrqi3_cmpno): Likewise.
	(*lshrsi3_cmpno, *lshrhi3_cmpno, *lshrqi3_cmpno): Likewise.
	(appropriate peepholes): Likewise.
	(*cmphi_1, *cmpqi_ccno_1, *cmpqi_1): Star out name.
	(*subsi_3, *subhi_3, *subqi_3): Remove.
	(*negdi2_1+1 splitter): Use CCZ for neg patterns.
	(*negsi2_cmp, *neghi2_cmp, *negqi2_cmp): Remove.
	(*negsi2_cmpz): Rename from *negsi2_cmpno, use CCZ.
	(*neghi2_cmpz, *negqi2_cmpz): Similarly.
	(x86_shift_adj_1): Use CCZ.
	(*dbra_ge+1, *dbra_ge+2, ffssi2, ffssi_1): Likewise.

2000-03-27  Stan Cox  <scox@cygnus.com>	

	* resource.h (mark_resource_type): New.
	* resource.c (find_dead_or_set_registers, mark_target_live_regs, 
	find_free_register): Use mark_resource_type.
	(mark_set_resources): Change include_delayed_effects
	to mark_resource_type.
	* reorg.c (steal_delay_list_from_target, try_merge_delay_insns, 
	redundant_insn, fill_simple_delay_slots, fill_slots_from_thread): 
	Use mark_resource_type.
	
2000-03-27  Richard Henderson  <rth@cygnus.com>

	* i386.md (call_pop_0, call_value_pop_0): New.
	(call_pop_1): Remove constraint from unused arg.  Support sibcalls.
	(call_value_pop_1): Likewise.
	(call_0, call_value_0): New.
	(call_1, call_value_1): Remove constraint from unused arg.

2000-03-27  Nick Clifton  <nickc@cygnus.com>

	* invoke.texi (Spec Files): Document new spec % command created by
	Tom Tromey's recent patch.

2000-03-27  Jakub Jelinek  <jakub@redhat.com>

	* libgcc2.h (MIN_UNITS_PER_WORD): Define to UNITS_PER_WORD
	if not defined.

Mon Mar 27 06:04:22 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* expr.c (expand_assignment): Fix typo in last change.

	* libgcc2.h: Use MIN_UNITS_PER_WORD, not UNITS_PER_WORD.

Sun Mar 26 20:15:26 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* c-convert.c (convert): Return if output or input type is ERROR_MARK.
	* c-decl.c (duplicate_decls): Only look at DECL_BUILT_IN_NONANSI
	and DECL_INLINE if FUNCTION_DECL.
	(pushdecl, redeclaration_error_message): Likewise, for DECL_INLINE.
	(store_parm_decls): Check for type of PARM_DECL being ERROR_MARK.
	Use DECL_WEAK, not DECL_RESULT, to flag for already seen.
	(combine_parm_decls): Likewise.
	* ggc-common.c (gcc_mark_tree_children, case 'd'): Use DECL_RESULT_FLD.
	* print-tree.c (print_node): Likewise.
	Only test DECL_PACKED, DECL_INLINE, DECL_BIT_FIELD, and
	DECL_TRANSPARENT_UNION on proper decl types.
	Properly handly DECL_INCOMING_RTL and DECL_SAVED_INSNS.
	* stor-layout.c (layout_decl): Only check DECL_PACKED and
	DECL_BIT_FIELD of FIELD_DECL.
	* tree.h (DECL_RESULT_FLD): New macro.
	
	* expr.c (expand_assignment): Add code to handle variable-sized
	BLKmode case.

2000-03-26  Richard Henderson  <rth@cygnus.com>

	* calls.c (expand_call): Pass parms not original exp to
	optimize_tail_recursion.  Mind return value instead of looking
	for a barrier.
	* stmt.c (optimize_tail_recursion): Take parameter list, not entire
	call_expr.  Move checks for call_expr and current_function_decl ...
	(expand_return): ... here.

2000-03-26  Tom Tromey  <tromey@cygnus.com>

	* gcc.c (handle_braces): Recognize `%{<S}' construct.
	(SWITCH_OK, SWITCH_FALSE, SWITCH_IGNORE, SWITCH_LIVE): New
	defines.
	(process_command): Use them.
	(check_live_switch): Likewise.
	(give_switch): Skip ignored switches.

2000-03-26  Jan Hubicka  <jh@suse.cz>

	* jump.c (jump_optimize_1): Fix typo in elide optimizations
	for minimal jump pass test.

2000-03-26  Mark Mitchell  <mark@codesourcery.com>

	* integrate.c (function_cannot_inline_p): Do inline functions that
	return `void'.

Sun Mar 26 11:37:55 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* stor-layout.c (layout_type, set_sizetype): early_type_list is
	now a list of TREE_LIST entries, not types.
	* tree.c (build_common_tree_nodes_2): Eliminate dupliate type sets.

	* expmed.c (extract_bit_field): Ensure BITS_PER_WORD is signed in MAX.
	* config/arm/pe.c (arm_pe_return_in_memory): Use host_integerp and
	int_bit_position.
	* config/mips/mips.c (function_arg): Likewise; also remove cast
	and make variables unsigned or HOST_WIDE_INT and use tree_low_cst.
	(mips_function_value): Use int_byte_position and make HOST_WIDE_INT.
	* config/mips/abi64.h (SETUP_INCOMING_VARARGS): Offsets are unsigned.
	* config/mips/mips.h (BITS_PER_WORD, UNITS_PER_WORD): Cast to unsigned.
	(UNITS_PER_FPREG, INT_TYPE_SIZE, LONG_TYPE_SIZE): Likewise.
	(POINTER_SIZE, POINTER_BOUNDARY,PARM_BOUNDARY): Likewise.
	(GP_REG_P, FP_REG_P, MD_REG_P, ST_REG_P): Ensure subtraction signed.
	(struct mips_arg): arg_number, arg_words, fp_arg_words, and
	num_adjusts now unsigned.
	(FUNCTION_ARG_BOUNDARY): Remove unneeded cast.
	* config/sparc/sparc.c (struct function_arg_record_value_parms):
	NREGS now unsigned.
	(function_arg_record_value_1): STARTBITPOS arg now HOST_WIDE_INT
	as is BITPOS variable; use host_integerp and int_bit_position.
	(function_arg_record_value_2): Likewise.
	(function_arg_record_value_3): Arg BITPOS now HOST_WIDE_INT.
	Variable REGNO now unsigned.
	(function_arg_record_value): NREGS now unsigned.

2000-03-26  Bernd Schmidt  <bernds@cygnus.co.uk>

	* jump.c (mark_all_labels): Handle CALL_PLACEHOLDERs.

Sat Mar 25 09:12:10 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* Rework fields used to describe positions of bitfields and
	modify sizes to be unsigned and use HOST_WIDE_INT.
	* alias.c (reg_known_value_size): Now unsigned.
	* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
	(really_start_incremental_init): Use bitsize_zero_node.
	(push_init_level, pop_init_level, output_init_element): Likewise.
	Use bitsize_unit_node and bitsize_one_node.
	(output_pending_init_elements, process_init_element): Likewise.
	* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
	(make_extraction): Position and length HOST_WIDE_INT and unsigned
	HOST_WIDE_INT, respectively.
	(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
	(num_sign_bit_copies): Returns unsigned.
	BITWIDTH now unsigned; rework arithmetic.
	Remove recursive call from arg to MAX.
	(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
	(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
	REGNO now unsigned.
	(set_nonzero_bit_and_sign_copies): NUM now unsigned.
	(find_split_point, expand_compound_operation, make_extraction): LEN
	now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
	(make_field_assignment): Likewise.
	(combine_simplify_rtx): Add cast.
	(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
	(force_to_mode): WIDTH now unsigned; add cast.
	(if_then_else_cond): SIZE now unsigned.
	(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
	(extended_count): Now returns unsigned.
	(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
	Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
	(simplify_comparison): MODE_WIDTH now unsigned.
	(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
	(mark_used_regs_combine): Likewise; rework arithmetic.
	(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
	(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
	(record_promoted_value): REGNO now unsigned.
	(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
	(get_last_value): REGNO now unsigned.
	(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
	(reg_dead_regno, reg_dead_endregno): Now unsigned.
	(remove_death): Arg REGNO now unsigned.
	(move_deaths):  REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
	(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
	now unsigned.
	* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
	* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
	(struct cse_reg_info): REGNO now unsigned.
	(cached_regno): Now unsigned.
	(REGNO_QTY_VALID_P): Add cast.
	(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
	(remove_invalid_regs): Likewise.
	(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
	as are variables END and I.
	(get_cse_reg_info, insert): Likewise.
	(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
	(canon_hash): Likewise.
	(insert_regs, lookup_for_remove): REGNO now unsigned.
	(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
	New variable RN.
	* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
	* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
	* emit-rtl.c (subreg_realpart_p): Add cast.
	(operand_subword): Arg I is now unsigned as is var PARTWORDS.
	(operand_subword_force): Arg I is now unsigned.
	* except.c (eh_regs): Variable I is now unsigned.
	* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
	* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
	length is unsigned HOST_WIDE_INT; likewise for internal variables.
	(store_split_bit_field, extract_fixed_bit_field): Likewise.
	(extract_split_bit_field, store_bit_field, extract_bit_field):
	Likewise.
	* expr.c (store_constructor_fields, store_constructor, store_field):
	Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
	(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
	(do_jump): Likewise.
	(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
	MAX_SIZE is now unsigned.
	(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
	(emit_group_store): Likewise.
	(emit_move_insn): I now unsigned.
	(store_constructor): Use host_integerp, tree_low_cst, and
	bitsize_unit_node.
	(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
	Rework all calculations to use trees and new fields.
	* expr.h (promoted_input_arg): Regno now unsigned.
	(store_bit_field, extract_bit_field): Adjust types of pos and size.
	(mark_seen_cases): Arg is HOST_WIDE_INT.
	* flow.c (verify_wide_reg_1): REGNO now unsigned.
	* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
	precisions and alignments are unsigned.
	(optimize_bit_field_compare, fold_truthop): Likewise.
	(int_const_binop): Adjust threshold for size_int_type_wide call.
	(fold_convert): Likewise.
	(size_int_type_wide): Make table larger and fix thinko that only
	had half of table used.
	(all_ones_mask_p, fold): Precisions are unsigned.
	* function.c (put_reg_info_stack): REGNO is unsigned.
	(instantiate_decl): Size is HOST_WIDE_INT.
	(instantiate_virtual_regs): I is unsigned.
	(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
	(promoted_input_arg): REGNO is unsigned.
	* function.h (struct function): x_max_parm_reg is now unsigned.
	* gcse.c (max_gcse_regno): Now unsigned.
	(struct null_pointer_info): min_reg and max_reg now unsigned.
	(lookup_set, next_set): REGNO arg now unsigned.
	(compute_hash_table): REGNO and I now unsigned.
	(handle_avail_expr): regnum_for_replacing now unsigned.
	(cprop_insn): REGNO now unsigned.
	(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
	* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
	* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
	* hard-reg-set.h (reg_class_size): Now unsigned.
	* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
	* jump.c (mark_modified_reg): I now unsigned; add cast.
	(rtx_equal_for_thread_p): Add cast.
	* loop.c (max_reg_before_loop): Now unsigned.
	(struct_movable): REGNO now unsigned.
	(try_copy_prop): REGNO arg unsigned.
	(regs_match_p): XN and YN now unsigned.
	(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
	(strength_reduce): Likewise; NREGS also unsigned.
	(first_increment_giv, last_increment_giv unsigned): Now unsigned.
	* loop.h (struct iv_class): REGNO now unsigned.
	(max_reg_before_loop, first_increment_giv, last_increment_giv):
	Now unsigned.
	* machmode.h (mode_size, mode_unit_size): Now unsigned.
	(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
	* optabs.c (expand_binop): I and NWORDS now unsigned.
	(expand_unop): I now unsigned.
	* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
	print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
	* real.c (significand_size): Now returns unsigned.
	* real.h (significand_size): Likewise.
	* regclass.c (reg_class_size): Now unsigned.
	(choose_hard_reg_mode): Both operands now unsigned.
	(record_reg_classes): REGNO and NR now unsigned.
	(reg_scan): NREGS now unsigned.
	(reg_scan_update): old_max_regno now unsigned.
	(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
	* reload.c (find_valid_class): BEST_SIZE now unsigned.
	(find_dummy_reload): REGNO, NWORDS, and	I now unsigned.
	(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
	Likewise for variable R.
	(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
	as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
	(find_equiv_reg): Add casts.
	(regno_clobbered_p): Arg REGNO now unsigned.
	* reload.h (struct reload): NREGS now unsigned.
	(refers_to_regno_for_reload_p): Regno args are unsigned.
	(regno_clobbered_p): Likewise.
	* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
	(compute_use_by_pseudos): REGNO now unsigned.
	(find_reg): I and J now unsigned, new variable K, and change loop
	variables accordingly; THIS_NREGS now unsigned.
	(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
	(spill_hard_reg): REGNO arg now unsigned; add casts.
	(forget_old_reloads_1): REGNO, NR, and I now unsigned.
	(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
	(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
	END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
	(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
	(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
	(emit_reload_insns): REGNO now unsigned.
	(reload_cse_move2add): Add cast.
	(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
	and rework loop.
	* resource.c (mark_referenced_resources, mark_set_resources): New
	variable R; REGNO and LAST_REGNO now unsigned.
	(mark_target_live_regs): J and REGNO now unsigned.
	* rtl.c (mode_size, mode_unit_size): Now unsigned.
	* rtl.h (union rtunion_def): New field rtuint.
	(XCUINT): New macro.
	(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
	(operand_subword, operand_subword_force): Word number is unsigned.
	(choose_hard_reg_mode): Operands are unsigned.
	(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
	(find_regno_note, find_regno_fusage, replace_regs): Likewise.
	(regno_use_in, combine_instructions, remove_death): Likewise.
	(reg_scan, reg_scan_update): Likewise.
	(extended_count): Return is unsigned.
	* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
	INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
	(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
	(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
	(reg_reg_last_1): FIRS and LAST now unsigned.
	(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
	(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
	now unsigned.
	(find_regno_note, regno_use_in): Arg REGNO now unsigned.
	(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
	(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
	(replace_regs): Arg NREGS now unsigned.
	* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
	* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
	(simplify_binary_operation): Likewise.
	(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
	THIS_LAST now unsigned.
	(cselib_record_set): Add cast.
	* ssa.c (ssa_max_reg_num): Now unsigned.
	(rename_block): REGNO now unsigned.
	* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
	sizes now unsigned.
	(all_cases_count): Just return -1 not -2.
	COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
	Rework tests to use trees whenever possible.
	Use host_integerp and tree_low_cst.
	(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
	Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
	(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
	* stor-layout.c (mode_for_size): SIZE arg now unsigned.
	(smallest_mode_for_size): Likewise.
	(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
	KNOWN_ALIGN is now an alignment, so simplify code.
	Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
	(start_record_layout): Renamed from new_record_layout_info.
	Update to new fields.
	(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
	New functions.
	(place_union_field): Renamed from layout_union_field.
	Update to use new fields in rli.
	(place_field): Renamed from layout_field.
	Major rewrite to use new fields in rli; pass alignment to layout_decl.
	(finalize_record_size): Rework to use new fields in rli and handle
	union.
	(compute_record_mode): Rework to simplify and to use new DECL fields.
	(finalize_type_size): Make rounding more consistent.
	(finish_union_layout): Deleted.
	(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
	(layout_type, case RECORD_TYPE): Call new function names.
	(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
	(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
	(get_best_mode): UNIT is now unsigned; remove casts.
	* tree.c (bit_position): Compute from new fields.
	(byte_position, int_byte_position): New functions.
	(print_type_hash_statistics): Cast to remove warning.
	(build_range_type): Use host_integerp and tree_low_cst to try to hash.
	(build_index_type): Likewise; make subtype of sizetype.
	(build_index_2_type): Pass sizetype to build_range_type.
	(build_common_tree_nodes): Use size_int and bitsize_int to
	initialize nodes; add bitsize_{zero,one,unit}_node.
	* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
	(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
	(DECL_PACKED, DECL_BIT_FIELD): Likewise.
	(DECL_FIELD_BITPOS): Deleted.
	(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
	(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
	(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
	(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
	(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
	(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
	(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
	(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
	(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
	(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
	(DECL_ALIGN): Adjust to new field in union.
	(DECL_OFFSET_ALIGN): New field.
	(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
	(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
	(union tree_decl): Add struct for both aligns.
	(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
	(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
	(struct record_layout_info): Rework fields to have offset
	alignment and byte and bit position.
	(start_record_layout, place_field): Renamed from old names.
	(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
	(byte_position, int_byte_position): Likewise.
	(get_inner_reference): Change types of position and length.
	* unroll.c (unroll_loop): New variable R; use for some loops.
	MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
	(calculate_giv_inc): Arg REGNO now unsigned.
	(copy_loop_body): REGNO and SRC_REGNO now unsigned.
	* varasm.c (assemble_variable): Clean up handling of size using
	host_integerp and tree_low_cst.
	(decode_addr_const): Use byte, not bit, position.
	(output_constructor): bitpos and offsets are HOST_WIDE_INT;
	use tree_low_cst and int_bit_position.
	* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
	
Fri Mar 24 20:13:49 2000  Jason Eckhardt  <jle@cygnus.com>

	* bb-reorder.c (REORDER_MOVED_BLOCK_END): Removed.
	(reorder_block_def): New members eff_head and eff_end.
	(REORDER_BLOCK_EFF_HEAD, REORDER_BLOCK_EFF_END): New macros.
	(verify_insn_chain): New function.
	(skip_insns_between_block): Add code to skip deleted insns.
	Check for note before using.
	(chain_reorder_blocks): Replace calls to skip_insns_between_block
	with references to REORDER_BLOCK_EFF_HEAD and REORDER_BLOCK_EFF_END.
	Check for note before using.
	(make_reorder_chain): Use INTVAL rather than XINT to get REG_BR_PROB.
	(fixup_reorder_chain): Restructure, clean up, defect removal.
	(reorder_basic_blocks): Remove last_insn and references to it.
	Moved insn chain verification code into a new function (see above).
	Delete defective code that sets last insn.
	Initialize REORDER_BLOCK_EFF_HEAD and REORDER_BLOCK_EFF_END for
	all blocks.

2000-03-25  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.h (CPP_SPEC): Remove erroneous space.

2000-03-24  Richard Henderson  <rth@cygnus.com>

	* tree.c (lang_safe_for_unsave): Remove.
	(unsafe_for_reeval): Transmute and rename from safe_for_unsave,
	allowing for two levels of unsafeness.  Remove lang hook.
	* tree.h: Update declarations.
	* calls.c (expand_call): Rename safe_for_reeval to try_tail_call.
	Create temporary VAR_DECLs to protect very unsafe_for_reeval trees.
	Always fail sibcalls when there are pending cleanups.

2000-03-24  Geoff Keating  <geoffk@cygnus.com>

	* flow.c (propagate_block): When we delete an ADDR_VEC,
	also delete the BARRIER following it if there is one.

2000-03-24  Richard Henderson  <rth@cygnus.com>

	* builtins.c (expand_builtin_bzero): Convert `length' argument
	to sizetype.

2000-03-24  Jakub Jelinek  <jakub@redhat.com>

	* sibcall.c (skip_copy_to_return_value): Use OUTGOING_REGNO for
	comparison if regno's are equal.
	* calls.c (initialize_argument_informat): Add ecf_flags argument.
	Use FUNCTION_INCOMING_ARG if available and ECF_SIBCALL.
	(expand_call): Update caller.
	Avoid making a sibling call if argument size of the callee is larger
	than argument size of the caller.
	Call hard_function_value with outgoing set if in sibcall pass.
	Use FUNCTION_INCOMING_ARG if available and ECF_SIBCALL.

	* final.c (permitted_reg_in_leaf_functions, only_leaf_regs_used):
	Change LEAF_REGISTERS from an array initializer to actual array
	identifier. Move static global variable into the function.
	(leaf_function_p): Allow SIBLING_CALL_P calls even outside of
	sequences for leaf functions.
	* global.c (global_alloc): Likewise.
	* tm.texi (LEAF_REGISTERS): Update documentation.

	* config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Remove the ugly
	TARGET_FLAT leaf disabling hack.
	(LEAF_REGISTERS): Changed from an array initializer to actual array
	identifier to avoid duplication and remove the above hack.
	(FUNCTION_OK_FOR_SIBCALL): Define.
	* config/sparc/sparc.md (sibcall): New attr type. Use it almost
	always like call attribute.
	(eligible_for_sibcall_delay): New attribute.
	(sibcall): New delay type.
	(sibcall, sibcall_value, sibcall_epilogue): New expands.
	(sibcall_symbolic_sp32, sibcall_symbolic_sp64,
	sibcall_value_symbolic_sp32, sibcall_value_symbolic_sp64): New insns.
	* config/sparc/sparc.c (sparc_leaf_regs): New array.
	(eligible_for_sibcall_delay, output_restore_regs, output_sibcall):
	New functions.
	(output_function_epilogue): Move part of the code into
	output_restore_regs.
	(ultra_code_from_mask, ultrasparc_sched_reorder): Handle
	TYPE_SIBCALL.
	* sparc-protos.h (output_sibcall, eligible_for_sibcall_delay): New
	prototypes.

	* config/sparc/sparc.h (REVERSIBLE_CC_MODE): Revert Jan, 25 change
	until infrastructure is finished.

Fri Mar 24 13:49:45 2000  Jeffrey A Law  (law@cygnus.com)

	* integrate.c (save_for_inline_nocopy): Clear in_nonparm_insns here.
	(save_parm_insns): Not here.

2000-03-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* builtins.c (expand_builtin_bzero): New function.
	(expand_builtin): Handle bzero.

	* builtins.def: Add BUILT_IN_BZERO.

	* c-common.c (c_common_nodes_and_builtins): Provide builtin
	prototype & function for bzero.

2000-03-23  Michael Meissner  <meissner@redhat.com>

	* config/alpha/alpha.md (TF floating point insns): Undo 2000-03-21
	change adding TARGET_FP to the TF floating point insns, except for
	trunctfsf2, which generates direct calls to truncdfsf2.

2000-03-23  Geoff Keating  <geoffk@cygnus.com>

	* config/rs6000/rs6000.h (ARG_POINTER_CFA_OFFSET): New definition,
	try to protect against middle-end changes that break binary
	compatibility.
	(DWARF_FRAME_REGISTERS): New definition, likewise for backend.

2000-03-24  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md (load_immed_address):  Add DP reg clobber.

Thu Mar 23 17:10:48 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* calls.c (expand_call): If TARGET is passed by reference and
	is readonly, write a CLOBBER.

2000-03-23  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* builtins.c (expand_builtin): Handle bcmp.

	* builtins.def: Add BUILT_IN_BCMP.

	* c-common.c (c_common_nodes_and_builtins): Provide builtin
	prototype & function for bcmp.

Thu Mar 23 11:34:39 2000  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64.c (rtx_needs_barrier, case UNSPEC): Move case 6...
	(rtx_needs_barrier, case UNSPEC_VOLATILE): to here.
	* config/ia64/ia64.md (pr_restore): Change UNSPEC to UNSPEC_VOLATILE.

Thu Mar 23 16:04:40 2000  Andrew Haley  <aph@cygnus.com>

	* config/mips/mips.md (movdf_internal1a): Delete (set 'f', 'F')
	alternative when using -fp64 -gp32.

2000-03-22  Jason Merrill  <jason@casey.cygnus.com>

	* config/rs6000/rs6000.h (DWARF_FRAME_RETURN_COLUMN): Define.
	* config/alpha/alpha.h (DWARF_FRAME_RETURN_COLUMN): Define.
	* config/sparc/sparc.h (DWARF_FRAME_RETURN_COLUMN): Define.

	* frame.h (frame_state): Revert last change.
	* frame.c (execute_cfa_insn): Just don't record the save of a CFA reg.
	* libgcc2.c (throw_helper): Revert last change.
	
2000-03-22  Richard Henderson  <rth@cygnus.com>

	* stmt.c (expand_asm_operands): Don't promote the temporary.

2000-03-22  Theodore Papadopoulo <Theodore.Papadopoulo@sophia.inria.fr>

	* builtin.c (get_pointer_alignment): Use DECL_P and TYPE_P macros.
	* c-common.c (decl_attributes,check_format_info,truthvalue_conversion,
	  c_get_alias_set): Likewise.
	* c-decl.c (duplicate_decls): Likewise.
	* c-typeck.c (default_conversion,build_unary_op): Likewise.
	* calls.c (initialize_argument_information): Likewise.
	* dwarf2out.c (decl_class_context,add_abstract_origin_attribute):
	Likewise.
	* dwarfout.c (decl_class_context,output_type): Likewise.
	* expr.c (get_inner_reference): Likewise.
	* fold-const.c (simple_operand_p,fold): Likewise.
	* function.c (aggregate_value_p): Likewise.
	* stmt.c (expand_asm_operands): Likewise.
	* varasm.c (named_section): Likewise.

2000-03-22  Jason Merrill  <jason@casey.cygnus.com>

	Implement dwarf2 exception handling for the ARM.
	* config/arm/arm.h (INCOMING_RETURN_ADDR_RTX): Define.
	(DWARF_FRAME_RETURN_COLUMN): Define.
	* config/arm/arm.c (emit_multi_reg_push): Return rtx.  Attach
	REG_FRAME_RELATED_EXPR note.
	(emit_sfm): Likewise.
	(arm_expand_prologue): Set RTX_FRAME_RELATED_P on everything.
	* dwarf2out.c (reg_save): Handle saving a register to itself.
	(dwarf2out_frame_debug_expr): Handle an intermediate cfa reg.
	* except.c (eh_regs): Don't use the static chain reg if it's
	callee-saved.
	* frame.h (frame_state): Add cfa_saved field.
	* frame.c (execute_cfa_insn): Set it.
	* libgcc2.c (throw_helper): Don't adjust sp if it's restored in 
	the epilogue.
	* function.c (ARG_POINTER_CFA_OFFSET): Default to FIRST_PARM_OFFSET.
	Now takes a parm.
	(instantiate_virtual_regs): Adjust.
	* tm.texi: Adjust.
	* config/m68k/m68k.h (ARG_POINTER_CFA_OFFSET): Don't define.
	* config/ns32k/ns32k.h (ARG_POINTER_CFA_OFFSET): Don't define.
	* config/sparc/sparc.h (ARG_POINTER_CFA_OFFSET): Take a parm.

	* dwarf2out.c (reg_number): Refer to FIRST_PSEUDO_REGISTER.
	(initial_return_save): Use DWARF_FRAME_REGNUM, not reg_number.

2000-03-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* builtins.def: New file.

	* Makefile.in (TREE_H): Depend on builtins.def.

	* builtins.c (built_in_names): Use builtins.def.

	* tree.h (built_in_function): Likewise.

2000-03-22  Mark Mitchell  <mark@codesourcery.com>

	* tree.c (size_in_bytes): Return size_zero_node, not
	integer_zero_node.

2000-03-22  Geoff Keating  <geoffk@cygnus.com>

	* config/fp-bit.c (pack_d): Correct the case when a denormal
	is rounded up and stops being denormal.

2000-03-21  Richard Henderson  <rth@cygnus.com>

	* config/alpha/alpha.c (function_arg): Check for void_type_node
	before using MUST_PASS_IN_STACK.

2000-03-21  Stephane Carrez  <stcarrez@worldnet.fr>

	* regmove.c (combine_stack_adjustments_for_block): Check that
	the stack pointer is a valid memory address.

Wed Mar 22 11:44:50 MET 2000  Jan Hubicka  <jh@suse.cz>

	* calls.c: re-install Mar 16 emit_library_call merge.

2000-03-21  Jakub Jelinek  <jakub@redhat.com>

	* config/sparc/sparc.c (mem_min_alignment): If not optimizing,
	we cannot be sure that if reload_completed base register will
	be properly aligned.

2000-03-21  Richard Henderson  <rth@cygnus.com>

	* flow.c (delete_block): Fix typo last change.

2000-03-21  Mark Mitchell  <mark@codesourcery.com>

	* c-common.c (c_expand_expr_stmt): Use COMPLETE_TYPE_OR_VOID_P,
	not COMPLETE_TYPE_P, to check the type of the expression.

2000-03-21  Michael Meissner  <meissner@redhat.com>

	* config/alpha/alpha.md (floating point insns): Add TARGET_FP to
	all floating point insns that just tested the macro
	TARGET_HAS_XFLOATING_LIBS.
	(movsf/movdf recognizers): Add separate insns if -mno-fp-regs is
	used to only use the gprs.

2000-03-21  Nathan Sidwell  <nathan@codesourcery.com>

	* tree.h (COMPLETE_TYPE_P): New macro.
	(COMPLETE_OR_VOID_TYPE_P): New macro.
	(COMPLETE_OR_UNBOUND_ARRAY_TYPE_P): New macro.
	* stor-layout.c (layout_type, case VOID_TYPE): Don't set TYPE_SIZE.
	* c-aux-info.c (gen_type): Use them.
	* c-common.c (c_expand_expr_stmt): Likewise.
	* c-decl.c (poplevel, pushdecl, start_decl, finish_decl,
	grokdeclarator, grokparms, finish_struct, start_function,
	store_parm_decls, combine_parm_decls): Likewise.
	* c-parse.y (cast_expr): Likewise.
	* c-typeck.c (require_complete_type, c_sizeof, c_sizeof_nowarn,
	c_size_in_bytes, c_alignof, build_component_ref,
	build_indirect_ref, build_array_ref, convert_arguments,
	build_binary_op, pointer_diff, build_unary_op, digest_init: Likewise.
	* calls.c (initialize_argument_information): Likewise.
	* convert.c (convert_to_integer): Likewise.
	* dbxout.c (dbxout_typedefs, dbxout_type, dbxout_symbol): Likewise.
	* dwarfout.c (location_or_const_value_attribute,
	output_enumeration_type_die, output_structure_type_die,
	output_union_type_die, output_type): Likewise.
	* expr.c (safe_from_p, expand_expr): Likewise.
	* function.c (assign_parms): Likewise.
	* sdbout.c (sdbout_symbol, sdbout_one_type): Likewise.
	* tree.c (build_array_type, build_function_type,
	build_method_type, build_offset_type, build_complex_type): Likewise.
	* c-parse.c, c-parse.h: Regenerated.

2000-03-21  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/rtems.h: Include config/rtems.h.

Tue Mar 21 09:24:00 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.c (encode_section_info): sets SYMBOL_REF_FLAG if
	decl is a FUNCTION_DECL

Mon Mar 20 19:53:53 2000  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64.c (ia64_expand_prologue): Don't abort if leaf
	function uses output registers.  Don't save RP for leaf functions.
	Do save RP even if no epilogue.
	* config/ia64/ia64.h (FIXED_REGISTERS): Unmark in/out registers.
	(CALL_USED_REGISTERS): Unmark in registers.
	(REG_ALLOC_ORDER): Move out regs up, to near the top.  Move in regs up,
	to near the middle.

2000-03-20  Geoff Keating  <geoffk@cygnus.com>

	* config/rs6000/rs6000.md (bunordered): New expander.
	(bordered): New expander.
	(buneq): New expander.
	(bunge): New expander.
	(bungt): New expander.
	(bunle): New expander.
	(bunlt): New expander.
	(bltgt): New expander.
 
	* config/rs6000/rs6000.c (ccr_bit): Handle unordered comparisons.
	(ccr_bit_negated_p): New function.
	(print_operand): For %C, generate appropriate cror for UNEQ,
	UNLT, UNGT, and LTGT.  For %T and %t, use ccr_bit_negated_p.

2000-03-20  Andreas Jaeger  <aj@suse.de>

	* sdbout.c (sdbout_one_type): Add braces to avoid "ambigous else"
	warning.

	* tree.h (safe_for_unsave): Prototype.

2000-03-20  Richard Henderson  <rth@cygnus.com>

	* regmove.c (stack_memref_p): Fix typo, reorg for readability.
	(combine_stack_adjustments_for_block): Don't allow sp references
	in the side of a set we're not fixing up.
	* toplev.c (rest_of_compilation): Run combine_stack_adjustments
	after life_analysis.

2000-03-20  Richard Henderson  <rth@cygnus.com>

	* calls.c (expand_call): Don't bother generating tail call
	sequences if there are pending cleanups.  Use
	expand_start_target_temps/expand_end_target_temps to elide
	cleanups created during sibcall expansion.

2000-03-20  Geoff Keating  <geoffk@cygnus.com>

	* configure.in: Set $IFS to a value if it doesn't already have one
	in the --enable-checking handling.
	* configure: Regenerate.