i960.c (i960_br_predict_opcode): Remove.

[gcc.git] / gcc / ChangeLog

2000-06-01  Richard Henderson  <rth@cygnus.com>

	* i960.c (i960_br_predict_opcode): Remove.
	(i960_print_operand) [+]: Emit branch prediction hints.
	(i960_function_arg): Return early for VOIDmode.
	(i960_round_align): Return early for incomplete types.
	* i960.h (PRINT_OPERAND_PUNCT_VALID_P): New.
	* i960.md (all conditional branches): Add "%+".

Thu Jun  1 12:24:21 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* alias.c (get_alias_set): Don't call language-specific routine more
	than is needed and clean up code a bit.
	* c-common.c (c_get_alias_set): All references whose type
	is char get alias set 0, but character types need not.
	* varasm.c (make_function_rtl): Don't call set_mem_attributes.
	(make_decl_rtl): Don't call it for FUNCTION_DECL.

2000-06-01  Bruce Korb  <bkorb@gnu.org>

	* fixinc/tests/base/...: new base result files

Thu Jun  1 09:37:35 2000  Clinton Popetz  <cpopetz@cygnus.com>

	* config/i386/i386.c (ix86_use_fcomi_compare): Make global.
	* config/i386/i386-protos.h (ix86_use_fcomi_compare): Declare.
	* config/i386/i386.md (*fp_jcc_3, *fp_jcc_4): Disable if we
	will use FCOMI.
	
2000-06-01  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (c-decl.o): Depend on $(EXPR_H), not expr.h.

	* c-decl.c (init_decl_processing): Set lang_get_alias_set first thing.

2000-05-31  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.c (sdata_symbolic_operand): Consider small
	CONSTANT_POOL_ADDRESS_P addresses for .sdata.
	* config/ia64/sysv4.h (SELECT_RTX_SECTION): New.

2000-05-31  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64-protos.h (ia64_expand_prediction): Remove.
	* config/ia64/ia64.c (ia64_expand_prediction): Move code ...
	(ia64_print_operand) [+]: ... here.  Use current_output_insn.
	* config/ia64/ia64.h (PRINT_OPERAND_PUNCT_VALID_P): New.
	* config/ia64/ia64.md (all branch/call patterns): Use %+.

2000-05-31  Richard Henderson  <rth@cygnus.com>

	* ifcvt.c (cond_exec_process_insns): Don't ever ignore clobbers.

2000-05-31  Richard Henderson  <rth@cygnus.com>

	* ifcvt.c (merge_if_block): Be prepared for JOIN to have no 
	remaining edges.
	(find_if_block): Allow THEN with no outgoing edges.
	* flow.c (merge_blocks_nomove): Remove a barrier not following
	a jump as well.

2000-05-31  Richard Henderson  <rth@cygnus.com>

	* flow.c (propagate_block): Move initialization of mem_set_list ...
	(init_propagate_block_info): ... here.  Also track blocks with 
	no successors; don't scan insns if ! PROP_SCAN_DEAD_CODE.

2000-05-31  Richard Henderson  <rth@cygnus.com>

	* jump.c (jump_optimize_1): Revert 05-18 change.

2000-05-31  Mark Mitchell  <mark@codesourcery.com>

	* invoke.texi: Remove documentation for -fguiding-decls.

2000-05-31  Richard Henderson  <rth@cygnus.com>

	* configure.in: Fix typo last change.

2000-05-31  Philipp Thomas  <pthomas@suse.de>

	* configure.in (enable-nls): Enable if build == host, i.e. when 
	not building a canadian cross compiler.
	(enable-maintainer-mode): Added for use with i18n.
	* aclocal.m4 (AM_GNU_GETTEXT): Only build catalogs that are a
	cross section of ALL_LINGUAS and LINGUAS.
	* configure: Rebuild.

2000-05-31  Bruce Korb  <bkorb@gnu.org>

	* fixinc/check.tpl: rework to use test result tree
	* fixinc/Makefile.in: change invocation of check script
	* fixinc/check.diff: No longer needed
	* fixinc/fixincl.x: regenerate
	* fixinc/inclhack.def:  add new tests
	* fixinc/tests/base/arch/i960/archI960.h:  New test result
	* fixinc/tests/base/curses.h: modified test result
	* fixinc/tests/base/stdio.h: ditto
	* fixinc/tests/base/time.h: ditto
	* fixinc/tests/base/sys/asm.h: ditto
	* fixinc/tests/base/sys/stat.h: ditto
	* fixinc/tests/base/sys/wait.h: ditto

Wed May 31 13:17:20 2000  Philippe De Muyter  <phdm@macqel.be>

	* except.c (clear_function_eh_region): Do not free NULL.

Wed May 31 08:07:52 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* Makefile.in (c-decl.o): Depend on rtl.h and expr.h.
	* alias.c (struct alias_entry): alias_set is HOST_WIDE_INT.
	(REG_BASE_VALUE): Remove unneeded cast to unsigned.
	(get_alias_set_entry): ALIAS_SET arg is HOST_WIDE_INT.
	(find_base_decl): New function, from c_find_base_decl in c-common.c.
	(new_alias_set): Moved from tree.c; return is HOST_WIDE_INT.
	(get_alias_set): Likewise.
	Major rework to do more things and allow language-specific code
	to just handle special-cases.
	(record_alias_subset): Args are HOST_WIDE_INT.
	(record_component_alias): Local vars are HOST_WIDE_INT.
	Don't handle COMPLEX_EXPR.
	(get_varargs_alias_set): Moved from builtins.c.
	(get_frame_alias_set): New function.
	* builtins.c (expand_builtin_return_address): Use frame alias set.
	(expand_builtin_setjmp, expand_builtin_longjmp): Use alias set
	for setjmp buffer.
	(get_memory_rtx): Rework to use set_mem_attributes.
	(get_varargs_alias_set): Deleted from here.
	* c-common.c (c_apply_type_quals_to_decl): Alias sets now HOST_WIDE_INT.
	(c_find_base_decl): Deleted from here.
	(c_get_alias_set): Remove many cases and rework to just handle
	C-specific cases.
	* c-common.h (c_get_alias_set): Returns HOST_WIDE_INT.
	* c-decl.c (rtl.h, expr.h): Now included.
	(init_decl_processing): Call record_component_aliases on array types.
	(grokdeclarator): Likewise.
	Set TREE_ADDRESSABLE for all fields that are not bitfields.
	* c-typeck.c (common_type): Call record_component_aliases for array.
	* caller-save.c (setup_save_areas): Rework register loop for unsigned.
	Set all save areas to the frame alias set.
	* calls.c (initialie_argument_information): Call set_mem_attributes.
	(compute_argument_addresses, expand_call): Likewise.
	* explow.c (set_mem_attributes): New function.
	(stabilize): Use MEM_COPY_ATTRIBUTES and force_reg.
	* expr.c (struct move_by_pieces): Remove {to,from}_{struct,readonly}.
	LEN and OFFSET now HOST_WIDE_INT.
	(clear_by_pieces): Similar changes.
	(move_by_pieces): LEN now HOST_WIDE_INT; don't set deleted fields.
	(move_by_pieces_ninsns): Now returns unsigned HOST_WIDE_INT.
	(move_by_pieces_1): Don't use deleted fields, use MEM_COPY_ATTRIBUTES.
	(clear_by_pieces_1): Likewise.
	(emit_push_insn): Call set_mem_attributes.
	(expand_expr, case INDIRECT_REF): Likewise.
	(expand_expr, case VAR_DECL): Call change_address.
	* expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE): Use host_integerp and
	tree_low_cst.
	(get_varargs_alias_set, get_frame_alias_set): New decls.
	(record_base_value, record_alias_subset, lang_get_alias_set): Likewise.
	(new_alias_set, set_mem_attributes): Likewse.
	* function.c (struct temp_slot): ALIAS_SET is HOST_WIDE_INT.
	(assign_stack_temp_for_type): Likewise.
	Can split slot even if alias set since can copy.
	Set MEM_ALIAS_SET and MEM_SET_IN_STRUCT_P.
	(assign_temp): Use host_integerp and tree_low_cst.
	(put_var_into_stack): Properly handle SAVE_EXPR.
	(put_addressof_into_stack): Likewise.
	(assign_parms): Call set_mem_attributes.
	Delete #if 0 code.
	(fix_lexical_address): Put reference to chain into frame alias set.
	(expand_function_start): Call set_mem_attributes.
	* integrate.c (expand_inline_function): Likewise.
	* recog.c (adj_offsettable_operand): Use MEM_COPY_ATTRIBUTES.
	* regmove.c (try_apply_stack_adjustment): Likewise.
	* reload.c (push_reload, make_memloc): Likewise.
	* reload1.c (alter_reg): Make alias sets for spilled pseudos.
	* rtl.def (MEM): Update comment.
	* rtl.h (MEM_ALIAS_SET): Now uses XCWINT.
	(move_by_pieces): Change length to HOST_WIDE_INT.
	(record_base_value, record_alias_subset): Delete from here.
	* stmt.c (expand_decl): Call set_mem_attributes.
	* stor-layout.c (finish_record_layout): Call record_component_aliases.i
	* toplev.c (compile_file): Call init_alias_once earlier.
	* tree.c (lang_get_alias_set, get_alias_set, new_alias_set): Deleted
	from here: now in alias.c.
	* tree.h (struct tree_type): alias_set is HOST_WIDE_INT.
	(struct tree_decl): Likewise.
	(get_alias_set, new_alias_set, lang_get_alias_set): Deleted from here.
	* varasm.c (make_function_rtl, make_decl_rtl): Call set_mem_attributes.
	(output_constant_def, force_const_mem): Likewise.
	
	* flow.c (propagate_block): If block has no successors, stores to
	frame are dead if not used.

2000-05-31  Nathan Sidwell  <nathan@codesourcery.com>

	* stmt (expand_end_case): Reorder conversion sequence for jump
	table to avoid extra truncations.

Wed May 31 01:31:42 2000  Jeffrey A Law  (law@cygnus.com)

	* ifcvt.c (cond_exec_process_if_block): Do nothing if the last insn
	in the block is more than just a simple conditional branch.
	(noce_process_if_block): Similarly.

Tue May 30 22:25:57 2000  Alexandre Oliva  <aoliva@cygnus.com>

	* optabs.c (prepare_float_lib_cmp): Protect *px and *py from
	queue.

2000-05-30  Michael Meissner  <meissner@redhat.com>

	* dwarf2out.c (dwarf2out_frame_debug_expr): Ignore HIGH
	instructions.  Treat LO_SUM operations as loading the full integer
	constant.

2000-05-30  Richard Henderson  <rth@cygnus.com>

	* combine.c (get_pos_from_mask): Test exact_log2 result as signed.

2000-05-30  Richard Henderson  <rth@cygnus.com>

	* bb-reorder.c (emit_jump_to_block_after): Protect use of HAVE_return.

2000-05-30  Bruce Korb  <bkorb@gnu.org>

	* fixinc/tests/*:  Added expected result files for fixinc's make check
	* fixinc/fixfixes(char_macro_*_fix): Restore original algorithm

2000-05-30  Richard Henderson  <rth@cygnus.com>

	* config/alpha/alpha.md (*setne_internal): Use match_operator
	instead of working down from insn.

2000-05-30  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* invoke.texi (-Wtraditional): Update WRT function macros.

Tue May 30 09:57:32 2000  Philippe De Muyter  <phdm@macqel.be>

	* except.c (free_exception_table): Do not free NULL.

2000-05-29  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.c (do_if): Don't save and restore only_seen_white here.
	* cppexp.c (_cpp_parse_expr): Save and restore only_seen_white
	and skipping here.

2000-05-29  Richard Earnshaw (rearnsha@arm.com)

	* flow.c (mark_used_reg): If a register is unconditionally live, 
	remove any conditional death information.

2000-05-29  Richard Henderson  <rth@cygnus.com>

	* final.c (current_output_insn): New.
	(final_scan_insn): Set it.
	* output.h: Declare it.

2000-05-29  Richard Henderson  <rth@cygnus.com>

	* stor-layout.c (finalize_record_size): Fix typo.

	* jump.c (redirect_jump): Don't emit NOTE_INSN_FUNCTION_END
	if nlabel is null.

2000-05-29  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.h (cpp_reader): Remove if_stack.  Change
	potential_control_macro to a cpp_hashnode *.  Add skipping flag.
	* cpphash.h (struct ihash): Change control_macro to a
	cpp_hashnode * and shorten name to cmacro.
	Add NEVER_REINCLUDE constant.

	* cppfiles.c (redundant_include_p): Drop cpp_reader argument.
	Examine the cmacro node directly, no need to call cpp_defined.
	(_cpp_execute_include, read_include_file): Set cmacro to
	NEVER_REINCLUDE, not U"".
	* cpplex.c (cpp_push_buffer): Don't set new->if_stack.
	(cpp_get_token): If pfile->skipping is true, discard text and
	keep scanning until we hit a directive; don't expand macros.

	* cpplib.c (struct if_stack): Remove if_succeeded, add
	was_skipping. Change control_macro to a cpp_hashnode * and
	shorten name to cmacro.  Remove typedef IF_STACK.
	(parse_ifdef), detect_if_not_defined): Return a cpp_hashnode *.
	(conditional_skip, skip_if_group,
	consider_directive_while_skipping): Delete.
	(push_conditional): New.
	(_cpp_handle_directive): Don't process directives other than
	conditionals if we are skipping.

	(do_ifdef, do_ifndef, do_if, do_else, do_elif, do_endif):
	Update to new scheme.
	(validate_else): Skip rest of line here, unconditionally.
	(_cpp_unwind_if_stack): The stack is per-buffer.  Force
	pfile->skipping off.

	(all): Remove `scare quotes' from error messages.

2000-05-29  Richard Henderson  <rth@cygnus.com>

	* function.c (emit_return_into_block): New line_note arg; emit it.
	(thread_prologue_and_epilogue_insns): Attempt to locate a line note
	for the close brace to accompany HAVE_return.  Move all line notes
	following the epilogue to before the NOTE_INSN_EPILOGUE_BEG.

2000-05-29  Richard Henderson  <rth@cygnus.com>

	* longlong.h [__alpha] (count_leading_zeros): New.
	(count_trailing_zeros): New.
	(COUNT_LEADING_ZEROS_0): New.

	* config/alpha/alpha.c (alpha_zero_comparison_operator): New.
	(alpha_split_conditional_move): New.
	* config/alpha/alpha-protos.h: Prototype them.
	* config/alpha/alpha.h (PREDICATE_CODES): Update.
	(CPP_CPU_DEFAULT_SPEC): Fix typo for EV67.
	* config/alpha/alpha.md: Update ffs cix commentary.
	(*ze_and_ne): New.
	(*nabssf2, *nabsdf2): New.
	(*mov[qhsd]icc_internal): Use add_operand.
	(if_then_else constant splitters): New.
	(*cmp_sadd_di, *cmp_sadd_si, *cmp_sadd_sidi): New.
	(*cmp_ssub_di, *cmp_ssub_si, *cmp_ssub_sidi): New.

2000-05-29  Richard Henderson  <rth@cygnus.com>

	* combine.c (force_to_mode) [MINUS]: Convert subtraction from
	a constant to NEG or NOT when conditions allow.

	* combine.c (combine_simplify_rtx): Don't create an if_then_else
	unless both args are general_operand.  Don't canonicalize plus
	to ior unless it helps.

	* toplev.c (rest_of_compilation): Set no_new_pseudos after flow1;
	instead track register_life_up_to_date.  Toggle no_new_pseudos
	around if_convert.  

2000-05-28  Geoff Keating  <geoffk@cygnus.com>

	* config/rs6000/rs6000.c (output_cbranch): Escape '%' characters
	so output_operand doesn't see them.

Sun May 28 18:37:07 2000  Clinton Popetz  <cpopetz@cygnus.com>

	* lcm.c (make_preds_opaque): Fix comment.
	(optimize_mode_switching): Use NORMAL_MODE instead of 
	MODE_USES_IN_EXIT_BLOCK.  Change leftover instance of
	FP_MODE_NONE to no_mode.  Rename MODE_AT_ENTRY to NORMAL_MODE.
	Handle insertions before an existing NOTE_INSN_BASIC_BLOCK.
	* tm.texi (OPTIMIZE_MODE_SWITCHING): Refer to NORMAL_MODE.
	(MODE_USES_IN_EXIT_BLOCK): Delete.
	(MODE_AT_ENTRY) Rename to NORMAL_MODE.
	* sh.h (MODE_USES_IN_EXIT_BLOCK): Delete.
	(MODE_AT_ENTRY): Rename to NORMAL_MODE.
	(MODE_NEEDED): Don't look for USE.
	(EPILOGUE_USES): Define.

Sun May 28 23:26:59 2000  Philippe De Muyter <phdm@macqel.be>

	* mklibgcc.in (all): Variable initialised to `libgcc'.

2000-05-28  Gabriel Dos Reis  <gdr@codesourcery.com>

	* toplev.h (skip_leading_substring): New macro.
	* toplev.c (decode_f_option): Use skip_leading_substring instead
	of strncmp.
	(decode_W_option): Likewise.

2000-05-28  Nick Clifton  <nickc@cygnus.com>

	* tm.texi (CONDITIONAL_REGISTER_USAGE): Document that it can
	modify reg_names.

2000-05-28  Richard Henderson  <rth@cygnus.com>

	* regclass.c (record_operand_costs): Protect reg_changes_size
	with CLASS_CANNOT_CHANGE_SIZE.

	* loop.c (instrument_loop_bct): Set JUMP_LABEL on the new insn.

2000-05-28  Richard Henderson  <rth@cygnus.com>

	* function.c (diddle_return_value): A pcc-style struct return
	returns a pointer.

2000-05-27  Zack Weinberg  <zack@wolery.cumb.org>

	* cppfiles.c: Read files in, using mmap if possible, then
	prescan them separately.
	(read_file, read_with_read): New functions.
	* cpplex.c: Don't define UCHAR_MAX.
	(_cpp_read_and_prescan): Rename to _cpp_prescan.  Don't read
	the file here.

	* cppinit.c (handle_option): Automatically define __cplusplus,
	__OBJC__, __ASEEMBLER__, _LANGUAGE_FORTRAN here when we see
	the respective -lang switch.

	* cpphash.h (enum node_type, struct hashnode, _cpp_lookup
	prototype): Move to...
	* cpplib.h: ... here.  Rename struct hashnode to struct
	cpp_hashnode and give it a typedef.  Rename _cpp_lookup to
	cpp_lookup.  Add 'fe_value' slot, a union tree_node *.

2000-05-27  Geoffrey Keating  <geoffk@cygnus.com>

	* config/rs6000/rs6000.md (movsi): Constify 'name'.

	* regclass.c [CLASS_CANNOT_CHANGE_SIZE]
	(class_can_change_size): New variable.
	(reg_changes_size): New variable.
	(init_reg_sets_1): Initialise class_can_change_size.
	(record_operand_costs): Remove subreg_changes_size.
	Don't pass it around.  Instead update reg_changes_size.
	(regclass): Initialise and free reg_changes_size.  If a register
	changes size, don't preference it to a class that contains
	registers that can't change size.
	(record_reg_classes): Don't look at subreg_changes_size.

2000-05-27  Richard Henderson  <rth@cygnus.com>

	* print-rtl.c (reg_names): Remove const.
	* regclass.c (reg_names): Likewise.
	* regs.h (reg_names): Likewise.
	* hard-reg-set.h (reg_names): Likewise.

2000-05-27  Richard Henderson  <rth@cygnus.com>

	* config/rs6000/rs6000.md (untyped_call): Use GEN_CALL.

2000-05-27  Richard Henderson  <rth@cygnus.com>

	* config/alpha/alpha.c (alpha_does_function_need_gp): Test
	TARGET_PROFILING_NEEDS_GP in the if, instead of with an ifdef.
	(alpha_expand_prologue): Emit prologue_mcount if needed.
	* config/alpha/alpha.h (TARGET_PROFILING_NEEDS_GP): Default to 0.
	* config/alpha/alpha.md (prologue_mcount): New.
	* config/alpha/linux.h (FUNCTION_PROFILER): Remove.
	(TARGET_PROFILING_NEEDS_GP): Undef before redefining.
	* config/alpha/netbsd.h: Likewise.

2000-05-27  Richard Henderson  <rth@cygnus.com>

	* config/alpha/elf.h (SELECT_SECTION): Mirror Kenner's May 19
	change to config/elfos.h.

2000-05-27  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (resource.o): Depend on except.h.
	* except.h (output_exception_table_data): Prototype.
	* genconfig.c (gen_peephole2): Prototype.
	* genemit.c (main): Include ggc.h.
	* genoutput.c: Revert parts of last change: include errors.h
	(main): Set progname.
	* recog.c: Include hard-reg-set.h before recog.h.
	* resource.c: Include except.h.

	* config/alpha/alpha-protos.h (alpha_arg_info_reg_val): Protect
	with RTX_CODE.
	(alpha_write_linkage): Protect with BUFSIZ.
	(alpha_need_linkage): Update prototype.
	* config/alpha/alpha.c (function_arg): Move VMS code here.
	(alpha_links_base): Remove.
	(alpha_links): New.
	(mark_alpha_links_node, mark_alpha_links): New.
	(alpha_write_one_linkage): New.
	(alpha_need_linkage): Use a splay tree.  Build the linkage symbol.
	(alpha_write_linkage): Use splay_tree_foreach.
	* config/alpha/alpha.md (call_vms): Use alpha_need_linkage
	to get the linkage symbol.
	(call_value_vms): Likewise.
	* config/alpha/elf.h (output_file_directive): Remove decl.
	(ctors_section, dtors_section): Prototype.
	(sbss_section, sdata_section): Prototype.
	* config/alpha/vms.h (FUNCTION_ARG): Remove.
	(readonly_section, link_section, literals_section): Prototype.
	(ctors_section, dtors_section): Prototype.
	(vms_valid_decl_attribute_p): Remove decl.
	(alpha_arg_type, alpha_arg_info_reg_val): Likewise.

2000-05-27  Geoff Keating  <geoffk@cygnus.com>

	* reload.c (get_secondary_mem): Don't widen floating-point modes.

	* combine.c (subst): Honour CLASS_CANNOT_CHANGE_SIZE when
	substituting the REG in a (subreg:X (reg:Y ...)).

2000-05-28  Neil Booth  <NeilB@earthling.net>

	* cpplex.c (_cpp_lex_line): Merge vertical space.  Flag
	first token of a line BOL.  Update EOF code for this.
	Remove illegal directive check - it appears in the (not
	yet committed) caller.
	* cpplib.h (BOL): New flag.

2000-05-28  Neil Booth  <NeilB@earthling.net>

	* cpplex.c (_cpp_init_toklist): No comment space to initialise.
	(_cpp_free_toklist): No comment space to free.
	(expand_comment_space): Remove.
	(save_comment_space): Place the comment in the current token and
	not in a separate comment space.
	(_cpp_lex_line): Save comments during plain code and #define
	directives only.
	* cpplib.h (struct _cpp_toklist): Remove comment space.

2000-05-28  Neil Booth  <NeilB@earthling.net>

	* cppexp.c (parse_assertion): Supply extra argument to
	_cpp_init_toklist.
	* cpplib.c (do_assert, do_unassert): Similarly.
	* cpphash.h (_cpp_init_toklist) Update.
	(_cpp_expand_token_space): New.
	(DUMMY_TOKEN, NO_DUMMY_TOKEN): New.
	* cpplex.c (_cpp_init_toklist): New argument.
	(parse_string2): New argument multiline_ok.
	(spell_token): Take a const cpp_token *.
	(INIT_NAME): Replace with INIT_TOKEN_NAME.  Update tokens_used.
	(SPELL_ macros): Replace with enum.
	(expand_token_space): Replace with _cpp_expand_token_space.
	Take COUNT argument.
	(IS_DIRECTIVE): Update.
	(_cpp_lex_line): Update token structure before parsing number.
	Don't assume start at beginning of token list.
	(save_comment): Use INIT_TOKEN_NAME.

2000-05-27  Zack Weinberg  <zack@wolery.cumb.org>

	* configure.in (stage1_warn_cflags): Add -Wstrict-prototypes
	-Wmissing-prototypes.
	* configure: Regenerate.
	* gcc.texi: Remove explanation of MD_CALL_PROTOTYPES.

	* builtins.c, calls.c: Change all instances of gen_call_* or
	gen_sibcall_* to GEN_CALL_* and GEN_SIBCALL_*.
	* calls.c (struct_value_size_rtx): Separate definition from
	initialization to avoid unused variable warning.

	* genflags.c (gen_macro): New function.
	(gen_proto): Call it for gen_call_* and gen_sibcall_*.
	(gen_nonproto): Delete.
	(gen_insn): Put all insns on the same obstack.
	(main): Generate prototypes for everything unconditionally.

	* configure.in: Add AC_CHECK_TYPE(ssize_t).  Remove commented 
	out check for wchar_t.
	* acconfig.h: Add template for ssize_t.  Remove @TOP@.
	* system.h: Add infrastructure for defining missing   
	TYPE_MAX/TYPE_MIN macros.  Use it to provide fallback  
	definitions of UCHAR_MAX and SSIZE_MAX.
	* configure: Regenerate.
	* config.in: Regenerate.

	* Makefile.in (libgcc2.ready): Rename to libgcc.ready.
	Depend on $(LANGUAGES) as well as $(GCC_PATCHES) and fixed
	headers.
	(clean): No need to delete libgcc1.a, libgcc1-asm.a,
	libgcc2.a, or libgcc1.null.

2000-05-27  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (recog.o): Don't depend on resource.h.
	* recog.c: Don't include resource.h.
	(recog_last_allowed_insn): Remove.
	(recog_next_insn): Remove.
	(struct peep2_insn_data): New.
	(peep2_insn_data, peep2_current): New.
	(peep2_next_insn): New.
	(peep2_regno_dead_p, peep2_reg_dead_p): New.
	(peep2_find_free_register): New.
	(peephole2_optimize): Track life information by insn as we go.
	* recog.h: Update declarations.
	* resource.c (find_free_register, reg_dead_p): Remove.
	* resource.h: Remove their declarations.
	* toplev.c: Include hard-reg-set.h before recog.h.

	* genconfig.c (max_insns_per_peep2): New.
	(gen_peephole2): New.
	(main): Call it.
	* genemit.c (output_peephole2_scratches): Generate calls to
	peep2_find_free_register; adjust surrounding code.
	(main): Have insn-emit.c include hard-reg-set.h before recog.h.
	* genrecog.c (change_state): Don't track last_insn.
	(write_action): Write into *_pmatch_len before accepting.
	(write_tree): Adjust peephole2_insns and subroutines to match.

	* config/i386/i386.md (all peepholes): Use peep2_regno_dead_p.

	* config/alpha/alpha.c (hard_fp_register_operand): Mind the mode.
	(hard_int_register_operand): New.
	* config/alpha/alpha-protos.h: Declare it.
	* config/alpha/alpha.h (PREDICATE_CODES): Update.
	* config/alpha/alpha.md (peep2 patterns): Use hard_int_register_operand
	as needed; use peep2_reg_dead_p instead of dead_or_set_p.

2000-05-27  Richard Henderson  <rth@cygnus.com>

	* function.c (thread_prologue_epilogue_insns): Don't move the
	line note at the head of the chain.  Only force a lineno note
	before the end of block 0.

2000-05-27  Richard Henderson  <rth@cygnus.com>

	* gensupport.c (collect_insn_data): Record the maximum number
	of alternatives, not the last seen.

	* genoutput.c: Don't include errors.h.
	(struct data): Add lineno member.
	(have_error): New.
	(scan_operands): Use message_with_line instead of error.
	(validate_insn_alternatives): Likewise.
	(gen_insn): Accept and store the pattern's line number.
	(gen_peephole, gen_expand, gen_split): Likewise.
	(main): Don't set progname.  Pass line_no to gen_foo.

2000-05-27  Richard Henderson  <rth@cygnus.com>

	* config/d30v/d30v.c (d30v_print_operand): Handle ':'.
	* config/d30v/d30v.h (PRINT_OPERAND_PUNCT_VALID_P): Accept ':'.
	* config/d30v/d30v.md (attr predicable): New.
	(all insn patterns): Mark non-predicable patterns; use %: on the rest.
	(andsi3*): Unify into one pattern.
	(iorsi3*, xorsi3*): Likewise.
	(peephole2 patterns): Use peep2_reg_dead_p; verify not a
	conditional return.
	(old cond_exec patterns): Remove.
	(define_cond_exec): New.

Sat May 27 11:01:27 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* tree.h (TREE_CODE_LENGTH): New macro.
	* c-common.c (c_find_base_decl): Use it.
	* expr.c (safe_from_p): Likewise.
	* print-tree.c (print_node): Likewise.
	* tree.c (make_node, copy_node, get_identifier): Likewie.
	(first_rtl_op, contains_placeholder_p, substitute_in_expr): Likewise.
	(build, build_nt, build_parse_node, simple_cst_equal): Likewise.
	* fold-const.c (make_range): Likewise.
	(fold): Likewise; also use first_rtl_op.
	* c-iterate.c (collect_iterators): Use first_rtl_op.
	* calls.c (calls_function_1): Likewise; also rename TYPE to CLASS.
	Use IS_EXPR_CODE_CLASS.
	(preexpand_calls): Likewise.
	* ggc-common.c (ggc_mark_trees): Rework to use first_rtl_op
	and TREE_CODE_LENGTH.
	* stmt.c (warn_if_unused_value): If no operands, no unused value.

2000-05-26  Geoffrey Keating  <geoffk@cygnus.com>

	* config/rs6000/rs6000.md (movsi_internal1): Use '%a1' rather
	than '%1(%*)'.
	(movdi_internal64): Likewise.

	* config/rs6000/rs6000.md: Correct order of operands for DImode
	boolean patterns.

	* config/rs6000/rs6000.c (boolean_or_operator): New function.
	* config/rs6000/rs6000-protos.h (boolean_or_operator): Prototype it.
	* config/rs6000/rs6000.h (PREDICATE_CODES): Add boolean_or_operator.
	* config/rs6000/rs6000.md: Use boolean_or_operator instead of
	boolean_operator for the boolean patterns without NOTs.

	* config/rs6000/rs6000.c (reg_or_logical_cint_operand): Rename
	from reg_or_u_cint_operand.  Change comment and behaviour.
	(logical_operand): Clean up, add assertion.
	(non_logical_cint_operand): Also check for
	reg_or_logical_cint_operand.
	* config/rs6000/rs6000.h (PREDICATE_CODES): Update.
	* config/rs6000/rs6000.md (iorsi3): Use reg_or_logical_cint_operand
	in the expander.
	(xorsi3): Likewise.
	(iordi3): Likewise.
	(xordi3): Likewise.

2000-05-26  Mark Mitchell  <mark@codesourcery.com>

	* tree.h (struct record_layout_info): Rename to (struct
	record_layout_info_s).
	* stor-layout.c (start_record_layout): Replace
	`record_layout_info' with `record_layout_info_s'.

2000-05-26  Richard Earnshaw  <rearnsha@arm.com>

	* flow.c (find_label_refs): New function.
	(find_basic_blocks_1): Call it for each alternative of a call 
	placeholder.

2000-05-26  Richard Earnshaw  <rearnsha@arm.com>

	* ifcvt.c (cond_exec_get_condition): Set test_if to the SET_SRC
	of get_pc.

2000-05-25  Richard Henderson  <rth@cygnus.com>

	* config/alpha/alpha.c (alpha_comparison_operator): Don't be
	so strict about DImode.
	(alpha_swapped_comparison_operator): Likewise.
	* config/alpha/alpha.md (*setne_internal): Name it.  Allow
	any integer output mode.
	(*setcc_internal): Likewise.
	(*setcc_swapped_internal): Likewise.
	(*movdicc_internal, *movdicc_lbc, *movdicc_lbs): Name them.
	(*mov[qhs]icc_internal): New.
	(*mov[qhs]icc_lbc, *mov[qhs]icc_lbs): New.

2000-05-25  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* vax.h (CPP_SPEC): Define __GFLOAT and GFLOAT when -mg is specified.

2000-05-25  Richard Henderson  <rth@cygnus.com>

	* bb-reorder.c (reorder_block_def): Reorder elements for size.
	Remove add_jump; add next; replace flags with visited.
	(rbd_init): Remove.
	(REORDER_BLOCK_HEAD, REORDER_BLOCK_VISITED): Remove.
	(REORDER_BLOCK_FLAGS, REORDER_BLOCK_INDEX): Remove.
	(REORDER_BLOCK_ADD_JUMP, REORDER_BLOCK_EFF_HEAD): Remove.
	(REORDER_BLOCK_EFF_END, REORDER_BLOCK_SCOPE): Remove.
	(RBI): New.
	(reorder_index, reorder_last_visited): Remove.
	(skip_insns_after_block): Rewrite to use a switch.
	(get_common_dest): Remove.
	(chain_reorder_blocks): Remove.
	(record_effective_endpoints): Split out from reorder_basic_blocks.
	(make_reorder_chain): Likewise.  Loop until all blocks are placed.
	(make_reorder_chain_1): Renamed from old make_reorder_chain.
	Only construct the reorder chain, do not move insns.  Try harder
	to tail recurse.
	(label_for_bb, emit_jump_to_block_after): New.
	(fixup_reorder_chain): Use them.  Do bulk block movement.  Examine
	and adjust the jump insns appropriately.  Fixup basic_block_info.
	(verify_insn_chain): Always define.
	(relate_bbs_with_scopes): Call xmalloc, not xcalloc.  Fix thinko
	in allocation size.
	(make_new_scope): Don't write zeros to calloc'd space.
	(build_scope_forest): Rely on xrealloc to DTRT.
	(reorder_basic_blocks): Don't build loop nest.  Don't fail if
	profile_arc_flag.  Streamline EH test.

	* flow.c (redirect_edge_succ, redirect_edge_pred): New.
	* basic-block.h: Declare them.

2000-05-25  Alexandre Oliva  <aoliva@cygnus.com>

	* emit-rtl.c (reset_used_decls): New function.
	(unshare_all_rtl_again): Call it.

2000-05-25  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplex.c (maybe_macroexpand): Warn about function-like
	macros used in non-function context, if -Wtraditional.

2000-05-25  Mark Mitchell  <mark@codesourcery.com>

	* recog.c (peephole2_optimize): Use INSN_P.

2000-05-25  Richard Henderson  <rth@cygnus.com>

	* ifcvt.c (seq_contains_jump): New.
	(noce_try_store_flag_constants): Use it to fail conversion.
	(noce_try_store_flag_inc, noce_try_store_flag_mask): Likewise.

2000-05-25  Mark Mitchell  <mark@codesourcery.com>

	* except.h (can_throw): Declare it.
	* except.c (can_throw): Give it external linkage.
	* resource.c (find_dead_or_set_registers): Use can_throw.
	
2000-05-25  Richard Henderson  <rth@cygnus.com>

	* flow.c (mark_set_1): Don't record conditionally dead memory.

2000-05-25  Jan Hubicka  <jh@suse.cz>

	* combine.c (try_combine): Use any_condjump_p, any_uncondjump_p
	and pc_set at the place of simplejump_p and condjump_p.
	* cse.c (record_jump_equiv): Likewise.
	* emit-rtl.c (emit): Likewise.
	* explow.c (find_next_ref): Likewise.
	* flow.c (tidy_fallthru_edge): Likewise.
	(init_propagate_block_info): Likewise.
	* gcse.c (delete_null_pointer_checks): Likewise.
	* ifcvt.c (cond_exec_get_condition, noce_get_condition,
	dead_or_predicable): Likewise.
	* integrate.c (copy_insn_list): Likewise.
	* loop.c (scan_loop, verify_dominator, find_and_verify_loops,
	for_each_insn_in_loop, check_dbra_loop, get_condition,
	insert_bct, load_mems): Likewise.
	* resource.c (find_dead_or_set_registers): Likewise.
	* sibcalls.c (simplejump_p): Likewise.
	* unroll.c (copy_loop_body, reg_dead_after_loop): Likewise.

2000-05-25  David Edelsohn  <edelsohn@gnu.org>

	* rs6000.c (expand_block_move): Add 64-bit PowerPC doubleword move
	to STRING case.  Use doubleword STRING move for TARGET_POWERPC64
	when unaligned.
	* rs6000.h (CONST_OK_FOR_LETTER_P, 'J'): unsigned HOST_WIDE_INT.
	(RETURN_ADDR_RTX): Use COUNT and FRAME, not count and frame.
	(LEGITIMIZE_RELOAD_ADDRESS): unsigned HOST_WIDE_INT high.
	* rs6000.md: Name various internal patterns.

2000-05-25  Jan Hubicka  <jh@suse.cz>

	* jump.c (invert_exp_1): Remove first argument, use pc_set
	to get the expression.
	(redirect_exp): Make static; redirect only the pc_set expression,
	remove first argument.
	(invert_exp): Remove first argument, make static.
	(jump_optimize): Use any_condjump_p, any_uncondjump_p and
	any_onlyjump at most places where we originaly did condjump_p
	and simplejump_p.
	(jump_back_p, follow_jumps, thread_jumps): Likewise.
	(delete_barrier_succesors): Use pc_set.
	(invert_jump_1, invert_jump, redirect_jump_1, redirect_jump): Update
	calls of invert_exp and redirect_exp.
	* rtl.h (redirect_exp, invert_exp): Remove.
	* unroll.c (copy_loop_body): Use invert_jump and redirect_jump.

2000-05-25  Richard Henderson  <rth@cygnus.com>

	* stmt.c (expand_end_bindings): Fix thinko last change.

2000-05-25  Andrew MacLeod  <amacleod@cygnus.com>
	    Andrew Haley  <aph@cygnus.com>

	* except.c  (func_eh_entry): Add emitted field.
	(new_eh_region_entry): Set emitted field to 0;
	(output_exception_table_entry): Only emit previously un-emitted data,
	and send it to the eh_data section.
	(output_exception_table): Break out common parts. Output
	exception table for entire compilation unit to eh_data section.
	(output_exception_table_data): Common parts of output_exception_table.
	Send output to eh_data section.
	(output_function_exception_table): Output exception table data for
	a single function to eh_data section.
	(free_exception_table): New external to free the table.
	* except.h (free_exception_table): Add prototype.
	(output_function_exception_table): Add prototype.
	* final.c (final_end_function): Output function exception table
	for IA64_UNWIND_INFO.
	(final_scan_insn): Emit any unwind directives for an insn.

	* frame-dwarf2.c: New file containing all DWARF 2 specific code
	from frame.c.
	* frame.c: Remove all DWARF 2 specific code.
	* config/ia64/frame-ia64.c: New file.
	(gthread_stuff): Make all gthread available with 
	IA64_UNWIND_INFO.
	(dwarf_fde): Define an IA64 struct for dwarf_fde.
	(__register_frame_info, __register_frame): Move to common area of file.
	(__register_frame_info_table, __register_frame_table): Move to common i
	area.
	(__deregister_frame_info, __deregister_frame): Move to common area.
	(__frame_init, find_fde): New versions for IA64_UNWIND_INFO.
	(read_uleb128): New version for ia64.
	(get_unwind_record): Read the next IA-64 unwind record.
	(read_R_record): Read a region header record.
	(process_a_b_reg_code): X record helper.
	(read_X_record): Read an X format record.
	(read_B_record): Read a B format record.
	(P3_record_types): List of record types matching the P3 format.
	(P7_record_types): List of record types matching the P7 format.
	(P8_record_types): List of record types matching the P8 format.
	(read_P_record): Read a P format record.
	(init_ia64_reg_loc): Set default fields for a register.
	(init_ia64_unwind_frame): Set defaults for all register records.
	(execute_one_ia64_descriptor): Execute one descriptor record.
	(rse_address_add): Calculate the position of a local reg in memory.
	(normalize_reg_loc): Turn a location descriptor into a memory address.
	(maybe_normalize_reg_loc): Only normalize a descriptor if it falls 
	within a specified PC offset range.
	(get_real_reg_value): Given a register location, retrieve its value.
	(set_real_reg_value): Change the value of a register location.
	(copy_reg_value): Copy reg values, if needed.
	(copy_saved_reg_state): Copy all registers that need to be copied.
	(process_state_between): Normalize all frame register records that
	fall within the specified PC range.
	(frame_translate): Take a processed frame description, and turn 
	everything into addresses.
	(build_ia64_frame_state ): Find and create frame state record for a PC.
	(get_personality): Get the personality routine for a given frame.
	(get_except_table): Get the exception table for a given frame.
	(record_name): Unwind record names for debugging.
	(print_record): Print and unwind record.
	(print_all_records): Print an entire unwind image.
	(__ia64_backtrace): Print a backtrace.
	(ia64_backtrace_helper): New function.
	(__register_frame_info_aux): New function.
	* config/ia64/crtend.asm (__do_frame_setup_aux): New function.

	* frame.h (enum unw_record_type): New unwind record types.
	(struct unw_p_record, unw_b_record, unw_x_record) : New unwind records.
	(struct unw_r_record, unwind_record): New unwind record structs.
	(struct unwind_info_ptr): Unwind information layout.
	(IA64_UNW_LOC_TYPE_*): Macros for different types for location 
	descriptors.
	(struct ia64_reg_loc): Register location description.
	(struct ia64_frame_state): Location of all registers in a frame.
	(struct object): Add pc_base and fde_end for IA64_UNWIND_INFO.
	* libgcc2.c (__ia64_personality_v1): Personality routine.
	(__calc_caller_bsp): Calculate the bsp register for the caller's
	frame.
	(ia64_throw_helper): Figure out who to return to and set up the 
	registers.
	(__throw): Throw routine.

	* output.h (assemble_eh_align, assemble_eh_label): New functions
	to generate EH info where we want it.	
	(assemble_eh_integer): New function.
	* toplev.c (compile_file): Output module level exception table for
	non-ia64 targets.
	(main): Set exceptions_via_longjump and flag_new_exceptions based 
	on IA64_UNWIND_INFO too.

	* varasm.c (assemble_eh_label): Generate a label via
	ASM_OUTPUT_EH_LABEL if it has been specified.
	(assemble_eh_align): Generate an alignment directive via 
	ASM_OUTPUT_EH_ALIGN if it has been specified.
	(assemble_eh_label): Generate an integer value via
	ASM_OUTPUT_EH_type if they have been specified.
	* config/ia64/ia64.c (rtx_needs_barrier): Add flushrs.
	(ia64_init_builtins): Add __builtin_ia64_bsp
	and __builtin_ia64_flushrs.	
	(ia64_expand_builtin): Add IA64_BUILTIN_BSP and
	IA64_BUILTIN_FLUSHRS.
	* config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and
	IA64_BUILTIN_FLUSHRS.

	* config/ia64/ia64.md (flushrs): New insn to flush the register
	stack.  Add to unspec list.

	* config/ia64/crtbegin.asm (frame_object): Change size.
	(__do_frame_setup_aux): New function.
	* config/ia64/crtend.asm: call __do_frame_setup_aux.
	* config/ia64/t-ia64 (LIB2ADDEH): Add.
	* Makefile.in (LIB2ADDEH): Add.
	(LIB2ADD): Use LIB2ADDEH.
	
2000-05-24  Richard Henderson  <rth@cygnus.com>

	* recog.c (offsettable_address_p): If mode size is zero, assume
	BIGGEST_ALIGNMENT.

2000-05-24  J. David Anglin  <dave@hiauly.hia.nrc.ca>

	* configure.in: Check for -Wno-long-long option support and improve
	handling of warning CFLAGS for stages 1 and 2.
	* Makefile.in (WARN_CFLAGS): Move definition to configure.in.
	* configure: Regenerate.

Wed May 24 19:37:53 2000  Jeffrey A Law  (law@cygnus.com)

	* gcc.texi: Remove contributor list.  Instead include contrib.texi.
	* contrib.texi: New file.

Thu May 25 02:27:22 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* loop.c (basic_induction_var): Avoid double recording of an increment.

Thu May 25 02:19:27 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* Back out this patch:
	Tue Dec  7 19:22:06 1999  Richard Henderson  <rth@cygnus.com>
	  * loop.h (struct induction): Add multi_insn_incr.
	  * loop.c (basic_induction_var): New multi_insn_incr argument.
	  Set it if we search back through previous insns for the biv.
	  (record_biv): New multi_insn_incr argument; fill in struct induction.
	  (strength_reduce): Discard an iv with multiple bivs, any of
	  which require multiple insns to increment.

	* loop.c (check_insn_for_bivs): Remove bits copied from above patch.

Thu May 25 02:09:10 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* rtl.h (loc_mentioned_in_p): Declare.
	* reload.c (loc_mentioned_in_p): Moved from here...
	* rtlanal.c (loc_mentioned_in_p): to here.  No longer static.
	Fix loop increment for 'E' handling.
	* loop.c (strength_reduce): When doing biv->giv conversion,
	take multi-insn biv increments into account.

2000-05-24  Jason Merrill  <jason@casey.soma.redhat.com>

	* stmt.c (expand_end_bindings): Look through NOTEs to find a
	BARRIER.

2000-05-24  Mark Mitchell  <mark@codesourcery.com>

	* calls.c (expand_call): Handle cleanups in tail-recursion
	arguments analagously to cleanups in sibling calls.

2000-05-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* simplify-rtx.c: Rename macro SIGN_EXTEND to HWI_SIGN_EXTEND.
	All callers changed.

2000-05-24  Alexandre Oliva  <aoliva@cygnus.com>

	* expr.c (expand_assignment, store_expr, expand_expr,
	expand_expr_unaligned): Set in_check_memory_usage while emitting
	chkr_check_addr libcall.

2000-05-24  Nick Clifton  <nickc@cygnus.com>

	* fold-const.c (extract_muldiv): When constructing a
	multiplier/divisor, do not expect const_binop to correctly
	determine if overflow has occured, so check explicitly.

2000-05-24  Alexandre Oliva  <aoliva@cygnus.com>

	* c-decl.c (build_enumerator): Don't modify the value's type,
	convert it.

2000-05-24  Andreas Jaeger  <aj@suse.de>

	* mips.h (LINKER_ENDIAN_SPEC): Pass -EL to linker by default.

2000-05-24  Eric Christopher <echristo@cygnus.com>

	* configure.in: Redefine inhibit_libc conditions.
	* libgcc2.c: Remove inhibit_libc conditional define.
	* configure: Regenerate.

2000-05-24  Phil Edwards  <pme@sourceware.cygnus.com>

	* configure.in:  For --enable-languages=LIST, check for empty LIST.
	* configure:  Regenerate.

2000-05-24  Lars Brinkhoff  <lars@nocrew.org>

	* pdp11.h (STACK_BOUNDARY): Define.

2000-05-24  Jakub Jelinek  <jakub@redhat.com>

	* ifcvt.c (if_convert): Update life info globally.

2000-05-24  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

	* emit-rtl.c (unshare_all_decls): New function.
	(unshare_all_rtl): Call it.

2000-05-23  Nick Clifton  <nickc@cygnus.com>

	* configure.in: Treat 'strongarm' as if it were 'arm' when
	determining cpu type.

	* configure: Regenerate.

	* config/arm/arm.c: Change 'char *' to 'const char *' for cases
	where constant strings are involved.

	* config/arm/arm.h (arm_condition_codes): Change type to 'const
	char *'.

	* config/arm/arm-protos.h: Change 'char *' to 'const char *' for
	cases where constant strings are involved.

Tue May 23 15:08:31 2000  Clinton Popetz  <cpopetz@cygnus.com>

	* config/sh/sh.c (gen_far_branch, split_branches): Update
	to reflect new prototypes for redirect_jump and invert_jump.
	(sh_insn_length_adjustment): Get rid of const warnings.

2000-05-23  Kazu Hirata  <kazu@hxi.com>

	* invoke.texi (Options for Debugging Your Program or GCC): Update
	the names of dump files.

Tue May 23 13:58:52 2000  Philippe De Muyter  <phdm@macqel.be>

	* configure.in (NO_MINUS_C_MINUS_O): Fix thinko in previous fix.
	* configure: Regenerated.

2000-05-23  Zack Weinberg  <zack@wolery.cumb.org>

	* simplify-rtx.c (SIGN_EXTEND): New macro.
	(simplify_unary_operation, simplify_binary_operation, 
	simplify_relational_operation): Use SIGN_EXTEND.  Make low
	halves of (low, high) pairs unsigned if they weren't already.       
	(simplify_ternary_operation): Cast INTVAL to unsigned before
	comparing to a MODE_BITSIZE.

2000-05-23  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* aclocal.m4 (gcc_AC_CHECK_DECL, gcc_AC_CHECK_DECLS): New macros
	rewritten from the internals of gcc_AC_NEED_DECLARATION{S}.
	
	* configure.in (gcc_AC_CHECK_DECLS): Call this instead of
	gcc_AC_NEED_DECLARATIONS.

	* dwarfout.c: Don't prototype time().

	* gcc.c: Check HAVE_DECL_* instead of NEED_DECLARATION_*.

	* system.h: Likewise.

	* toplev.c: Likewise.

2000-05-23  Zack Weinberg  <zack@wolery.cumb.org>

	* c-decl.c (pushdecl): Invert sense of test for non-global types.

Tue May 23 18:11:42 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* reload1.c (reload_cse_move2add): Honor TRULY_NOOP_TRUNCATION.

2000-05-23  Jonathan Larmour  <jlarmour@redhat.co.uk>

	* config/mips/elf64.h (CTOR_LISTS_DEFINED_EXTERNALLY): Define

Tue May 23 06:50:29 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* config/alpha/alpha.c: Remove #ifdef HAIFA since now only scheduler.
	(alpha_start_function): Never write ..ng label if VMS or NT.
	(alpha_align_insns): Remove GP_IN_USE arg.
	Alignment now unsigned.
	(alpha_reorg): Don't pass GP_IN_USE arg to alpha_align_insns.
	* config/alpha/alpha.md (prologue_ldgp): Split into one define_expand
	and two define_insn's.

2000-05-22  Richard Henderson  <rth@cygnus.com>

	* combine.c (simplify_comparison): Use trunc_int_for_mode.

2000-05-22  Richard Henderson  <rth@cygnus.com>

	* stor-layout.c (place_field): Change rli->size to rli->offset.

2000-05-22  Richard Henderson  <rth@cygnus.com>

	* function.c (thread_prologue_and_epilogue_insns): Make sure 
	existing line number notes appear after the prologue.

Mon May 22 21:49:00 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* config/alpha/alpha.c (alpha_fnname): New static variable.
	(print_operand, case '~'): New case.
	(alpha_expand_prologue): Emit prologue_ldgp insn if needed.
	(alpha_start_function): Set alpha_fnname.
	Write "ng" label if no ldgp; don't write ldgp insn.
	* config/alpha/alpha.h (PRINT_OPERAND_PUNCT_VALID_P): New case '~'.
	* config/alpha/alpha.md (prologue_ldgp): New define_insn.

Mon May 22 11:30:48 2000  Clinton Popetz  <cpopetz@cygnus.com>

	* jump.c (jump_optimize_1): Don't increment LABEL_NUSES
	on deleted labels.

2000-05-22  Zack Weinberg  <zack@wolery.cumb.org>

	* varasm.c (eh_frame_section): Revert change to argument list.

Mon May 22 13:14:03 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* optabs.c (can_extend_p): Allow unsignedp to have any nonzero value.
	(gen_extend_insn, can_fix_p, can_float_p): Likewise.
	
	* final.c (final_scan_insn, case NOTE_INSN_FUNCTION_BEG): Remove
	dangling "else" that causes "break" to be conditional.
	Also remove unneeded code at start.

Mon May 22 17:31:35 2000  Philippe De Muyter  <phdm@macqel.be>

	* m68k/m68k.h (STORE_FLAG_VALUE): Macro set to (-1), not -1.
	* fx80/fx80.h, i370/i370.h, m88k/m88k.h (STORE_FLAG_VALUE): Ditto.
	* gmicro/gmicro.h, we32k/we32k.h (STORE_FLAG_VALUE): Ditto.

2000-05-22  Jakub Jelinek  <jakub@redhat.com>

	* config/sparc/sparc.md (movdf_insn_v9only_vis): fzero has
	just one argument.

Mon May 22 06:57:49 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* alias.c (record_component_aliases): New function.
	* tree.h: Clean up some declarations and comments.
	(record_component_aliases): New declaration.
	* tree.c (get_alias_set): If type and has alias set, use it.

2000-05-22  Richard Henderson  <rth@cygnus.com>

	* simplify-rtx.c (simplify_ternary_operation): Try to simplify
	IF_THEN_ELSE to a setcc form.
	* jump.c (can_reverse_comparison_p): Be prepared for insn null.

2000-05-21  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* fixinc/inclhack.def (sun_malloc): Handle `calloc'.
	(sun_malloc, sysz_stdtypes_for_sun): Add test_text.

Sun May 21 16:42:31 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* combine.c (try_combine): Handle i3_subst_into_i2 case when I2 is
	not a PARALLEL.

2000-05-20  Alexandre Oliva  <aoliva@cygnus.com>

	* config/mn10300/mn10300.md (movdi, movdf): 64-bit clean-up.
	* config/mn10300/mn10300.c (print_operand): Likewise.

	* final.c (split_double): Right shift of negative values is not
	portable.

	* ifcvt.c (if_convert): Scan and kill dead code.

	* emit-rtl.c (unshare_all_rtl): Store the copied rtx.

2000-05-20  Zack Weinberg  <zack@wolery.cumb.org>

	* diagnostic.c: Eliminate implicit int.
	* except.c, gcc.c: Add static prototypes.
	* final.c (final_end_function): Mark file arg ATTRIBUTE_UNUSED.
	* gensupport.c (process_rtx): Use XVEC to initialize vector
	slot of 'split'.

	* print-rtl.c: If DEBUG_REGISTER_NAMES, define static 
	debug_reg_names instead of static reg_names.  If not, define
	global reg_names.
	* regclass.c: Don't define global reg_names unless
	DEBUG_REGISTER_NAMES is defined.

	* reload1.c (order_regs_for_reload): Remove unused variable.
	* varasm.c: Include output.h after defaults.h.  Define
	eh_frame_section as function of no args, not of unspecified args.

	* gcc.c: Constify argbuf; arguments to store_arg,
	process_command, main; elements of struct command and struct
	switchstr; local variables in execute, process_command, main.

2000-05-20  Bruce Korb  <bkorb@gnu.org>

	* fixinc/inclhack.def:  many applications of c_fix=format + tests
	* fixinc/check.diff:  regenerated
	* fixinc/fixincl.x:  regenerated

Sat May 20 09:30:55 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* alias.c: Clarify some comments.
	(record_base_value): REGNO is unsigned.
	* rtl.h (record_base_value): Likewise.

	* alias.c (aliases_everything_p): Don't special-case QImode here.
	* c-common.c (c_get_alias_set): Do it here.
	Handle BIT_FIELD_REF by getting alias info for arg.
	Use POINTER_TYPE_P.

2000-05-20  Alexandre Oliva  <aoliva@cygnus.com>

	* mklibgcc.in: Restore rule to create ${dir}.

Sat May 20 08:45:41 2000  H.J. Lu  <hjl@gnu.org>

	* Makefile.in (libgcc.mk): Depend on xgcc$(exeext) for
	GCC_FOR_TARGET used by MULTILIBS.
	* mklibgcc.in: Make sure each .o file depends on the
	directory it will be in.
	Make the multilib directory depends libgcc.

Sat May 20 08:29:28 2000  H.J. Lu  <hjl@gnu.org>

	* Makefile.in (bootstrap): Unset LANG_LIB2FUNCS for stage 1.

Sat May 20 07:27:35 2000  Alexandre Oliva  <aoliva@cygnus.com>

	* fold-const.c (make_range): Handle degenerated intervals.
	Fixes c-torture/execute/991221-1.c

Fri May 19 18:16:31 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* cse.c (cse_basic_block): Only call find_reg_note if REG_NOTES not 0.
	* reload.c (find_equiv_reg): Likewise.
	* alias.c (init_alias_analysis): Likewise.
	Only call prologue_epilogue_contains on insns.
	* basic-block.h (REG_SET_TO_HARD_REG_SET): Call new function.
	* bb-reorder.c (hard-reg-set.h): Include earlier.
	* haifa-sched.c (hard-reg-set.h): Likewise.
	* ifcvt.c (hard-reg-set.h): Likewise.
	* local-alloc.c (hard-reg-set.h): Likewise.
	* loop.c (hard-reg-set.h): Likewise.
	* predict.c (hard-reg-set.h): Likewise.
	* regrename.c (hard-reg-set.h): Likewise.
	* flow.c (hard-reg-set.h): Likewise.
	(reg_set_to_hard_reg_set): New function.
	* bitmap.c (regs.h, basic-block.h): No longer include.
	(bitmap.h): Now include.
	* conflict.c (hard-reg-set.h): Include.
	* profile.c (hard-reg-set.h): Likewise.
	* print-rtl.c (hard-reg-set.h): Likewise.
	* sbitmap.c (hard-reg-set.h): Likewise.
	* toplev.c (hard-reg-set.h): Likewise.
	* unroll.c (hard-reg-set.h, basic-block.h): Likewise.
	* hard-reg-set.h (reg_names): Now constant.
	* regs.h (reg_names): Likewise.
	* regclass.c (reg_names): Likewise.
	* loop.h (basic-block.h): No longer include.
	(bitmap.h): Now include.
	* reload1.c (order_regs_for_reload): Avoid loop over reg sets.
	* Makefile.in (LOOP_H, sbitmap.o, profile.o): Reflect above changes.
	(toplev.o, print-rtl.o, conflict.o, unroll.o, bitmap.o): Likewise.

2000-05-19  Jan Hubicka  <jh@suse.cz>
	    Richard Henderson  <rth@cygnus.com>

	* basic-block.h (struct edge_def): New field "count".
	(struct basic_block_def): Likewise.
	* flow.c (entry_exit_blocks): Add count fileds.
	(split_edge): Keep count information up-to-date.
	(dump_edge_info, dump_flow_info): Dump count fields.

	* final.c (count_instrumented_edges): Rename to edge from arc.
	(end_final): Update users.
	* profile.c: Include expr.h, basic-block.h.
	(struct adj_list, ARC_TARGET, ARC_SOURCE, ARC_COUNT): Kill.
	(struct bb_info, label_to_bb, label_to_bb_size, bb_graph): Kill.
	(ignore_next_note, return_label_execution_count): Kill.
	(bbg_file_name, da_file_name): Kill.
	(edge_info, bb_info): New structures.
	(EDGE_INFO, BB_INFO, GCOV_INDEX_TO_BB, BB_TO_GCOV_INDEX): New macros.
	(count_instrumented_edges, total_num_edges): Rename to edge from arc.
	(total_num_edges_instrumented): Likewise.
	(init_arc, expand_spanning_tree): Kill.
	(fill_spanning_tree, tablejump_entry_p): Kill.
	(instrument_edges):  Rewrite from instrument_arcs to use
	commit_edge_insertions infrastructure.
	(compute_branch_probabilities): Remove arguments; rewrite for
	CFG infrastructure; use rtl_dump_file directly.
	(branch_prob, find_spanning_tree): Likewise.
	(union_groups, find_group): New.
	(init_branch_prob): Make bbg_file_name and da_file_name local.
	(end_branch_prob): Use rtl_dump_file directly.
	(init_edge_profiler): Rename to edge from arc.
	(output_arc_profiler): Kill.
	(gen_edge_profiler): New.
	(output_func_start_profiler): Turn off profiling.  Make the
	constructor static when we can.
	* rtl.h (branch_prob, end_branch_prob): Update prototypes.

	* toplev.c (DFI_flow): Remove.
	(DFI_cfg, DFI_life): New.
	(dump_file): Update accordingly.
	(compile_file): Call end_branch_prob if profile_arc_flag too.
	(rest_of_compilation): Move flow1 cfg creation to DFI_cfg.  Do edge
	profiling after the CFG is built.  Move flow1 life analysis to
	DFI_life.  Always estimate remaining probabilities.

2000-05-19  Richard Henderson  <rth@cygnus.com>

	* ifcvt.c (find_if_case_2): Don't allow THEN to be EXIT.

	* flow.c (make_edges): The sibling call edge to exit is abnormal.

2000-05-19  Richard Henderson  <rth@cygnus.com>

	* jump.c (redirect_jump): Add delete_unused argument.  Don't
	remove labels and code following when LABEL_NUSES goes to zero.
	(invert_jump): Likewise.
	(jump_optimize_1): Fix redirect/invert arguments.
	(do_cross_jump, thread_jumps): Likewise.
	* flow.c (split_edge): Likewise.
	* reorg.c (optimize_skip): Likewise.
	(reorg_redirect_jump, relax_delay_slots, dbr_schedule): Likewise.
	* profile.c (instrument_arcs): Likewise.
	* loop.c (find_and_verify_loops): Likewise.  Fix indentation.
	* rtl.h: Update prototypes.

Fri May 19 12:05:13 2000  Clinton Popetz  <cpopetz@cygnus.com>

	* ssa.c (convert_from_ssa): Tell life_analysis we need death 
	notes.
	(make_regs_equivalent_over_bad_edges): Only look at abnormal
	critical edges.

2000-05-19  Zack Weinberg  <zack@wolery.cumb.org>

	* cpphash.c (funlike_macroexpand): Make sure not to walk p1
	past l1 when deleting whitespace and markers.              

	* cpplex.c (_cpp_scan_until): Clear AUX field of tokens.
	* cpplib.c (do_unassert): Put the list to compare against on
	the stack.

2000-05-19  Bruce Korb  <bkorb@gnu.org>

	* fixinc/README:  cleaned up old documentation
	* fixinc/check.diff: regenerated & verified on OSR5 on ix86
	* fixinc/check.tpl: compute the list of needed directories
	emit "#if defined(name)" because of conflict
	omit machine name differences from output differences
	* fixinc/inclhack.def( m88k_multi_incl ):  Use `wrap' function
	(machine_name): change test text to use `sed' markers
	* fixinc/fixincl.x: regen

Fri May 19 06:49:35 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* config/elfos.h (SELECT_SECTION): Don't access DECL_INITIAL of
	a CONSTRUCTOR.

2000-05-18  Chris Demetriou  <cgd@sibyte.com>

	* gcc.texi (MULTILIB_EXCEPTIONS): Correct example and update
	it to match the current practice.

2000-05-18  Mark Mitchell  <mark@codesourcery.com>

	* Makefile.in (STAGESTUFF): Fix typo in spelling of s-under.

2000-05-18  Richard Henderson  <rth@cygnus.com>

	* rtlanal.c (insn_dependant_p, insn_dependant_p_1): New.
	* rtl.h (insn_dependant_p): Declare it.
	* loop.c (strength_reduce): Use it.

2000-05-18  Alexandre Oliva  <aoliva@cygnus.com>

	* config/mn10300/mn10300.c (expand_prologue, expand_epilogue):
	16-bit and 64-bit clean-up.

2000-05-18 Mark Elbrecht <snowball3@bigfoot.com>

	* configure.in (*-pc-msdosdjgpp): Set float_format to none.
	* configure: Rebuilt.

2000-05-18  Zack Weinberg  <zack@wolery.cumb.org>

	* genopinit.c: Use $ for escape sequences in optab patterns.
	Remove backslashes from optab patterns.  Change $A, $B, $C to
	expand to (int) whatever instead of just whatever; remove
	explicit (int) from all optab patterns.

	* gensupport.c (xmalloc, xrealloc, xstrdup): Provide.
	* genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c,
	genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c,
	genrecog.c: Remove private copies of xmalloc, xrealloc, and
	xstrdup.

2000-05-18  Richard Henderson  <rth@cygnus.com>

	* jump.c (jump_optimize_1): Base minimum insn count during
	find_cross_jump on BRANCH_COST.

2000-05-18  Jakub Jelinek  <jakub@redhat.com>

	* print-rtl.c (print_rtx): Only print note line number as string
	if between NOTE_INSN_BIAS and NOTE_INSN_MAX.
	* final.c (final_scan_insn): Do nothing for note line number 0.

2000-05-18  Jakub Jelinek  <jakub@redhat.com>

	* gcc-common.c (ggc_mark_rtx_children): Mark NOTE_EXPECTED_VALUE
	from NOTE_INSN_EXPECTED_VALUE notes and NOTE_SOURCE_FILE from
	NOTE_INSN_DELETED_LABEL.

2000-05-18  Nick Clifton  <nickc@cygnus.com>

	* config/arm/unknown-elf.h (UNIQUE_SECTION): Place constant,
	uninitialised data in .rodata not .bss, and do not interpret an
	error in the initialisation value as meaning that the variable
	should be placed in the .bss section.

Thu May 18 12:10:18 2000  Philippe De Muyter  <phdm@macqel.be>

	* configure.in (NO_MINUS_C_MINUS_O): Test `$ac_cv_prog_cc_${ac_cc}_c_o',
	not `$ac_cv_prog_cc_cc_c_o'.
	* configure: Regenerated.

2000-05-18  Chris Demetriou  <cgd@sibyte.com>
	    Richard Henderson  <rth@cygnus.com>

	* c-common.h (enum c_tree_index): Add g77 type entries.
	(g77_integer_type_node, g77_uinteger_type_node): New.
	(g77_longint_type_node, g77_ulongint_type_node): New.
	* c-decl.c (init_decl_processing): Initialize them.

2000-05-18  Richard Henderson  <rth@cygnus.com>

	* config/h8300/h8300.md (subs patterns): Use %G to negate.

	* config/h8300/h8300.c (ok_for_bclr): Take a HOST_WIDE_INT.
	(small_power_of_two): Likewise; use exact_log2.
	(adds_subs_operand, one_insn_adds_subs_operand): Remove.
	(output_adds_subs): Remove.
	(two_insn_adds_subs_operand): New.
	(split_adds_subs): New.
	* config/h8300/h8300-protos.h: Update.
	* config/h8300/h8300.h (CONST_OK_FOR_J): Cast to uns HOST_WIDE_INT.
	(CONST_OK_FOR_L): Match strict adds operands.
	(CONST_OK_FOR_N): Match struct subs operands.
	* config/h8300/h8300.md (adds_subs insns): Remove.
	(addhi patterns): Output adds/subs directly.
	(addsi_h8300h): Likewise.
	(addhi/addsi splitters): New.  Decompose two_insn_adds_subs_operand.

2000-05-18  Zack Weinberg  <zack@wolery.cumb.org>

	* cppexp.c (parse_assertion): New.
	(lex): Call it for CPP_HASH.  Remove CPP_ASSERTION case.
	(_cpp_parse_expr): Remove case '#'.  Don't set
	parsing_if_directive.
	* cpphash.c (collect_objlike_expansion,
	collect_funlike_expansion, collect_params,
	_cpp_create_definition): The list no longer has a trailing
	VSPACE token.
	* cpphash.h (enum node_type): Add T_ASSERTION.
	(struct hashnode): Remove aschain, add pred.
	(struct predicate): New.
	Update prototypes.

	* cpplex.c (expand_token_space): Handle both offset and
	nonoffset lists.
	(init_token_list, _cpp_free_token_list, _cpp_parse_assertion): Delete.
	(_cpp_init_toklist, _cpp_clear_toklist, _cpp_free_toklist,
	_cpp_slice_toklist, _cpp_squeeze_toklist, _cpp_equiv_tokens,
	_cpp_equiv_toklists): New.
	(_cpp_scan_line): Rename to _cpp_scan_until; add ability to
	stop at any single-character token, not just newline.
	(_cpp_lex_token): Remove special cases for #define and #if.
	(cpp_get_token): Expect # as a separate token type.  Remove
	DIRECTIVE case.
	(_cpp_get_directive_token): Remove DIRECTIVE case.
	(_cpp_lex_line, _cpp_lex_file, _cpp_init_input_buffer): Update.

	* cpplib.c (_cpp_check_directive): Set dirno and
	SYNTAX_INCLUDE bit of flags, not dir_handler and dir_flags.
	(_cpp_handle_directive): Run # <number> through the same logic
	as normal directives.
	(do_define): Don't set parsing_define_directive.  Use
	_cpp_scan_until.  The list does not have a VSPACE at the end.
	(do_if): Save, clear, and restore only_seen_white around 
	_cpp_parse_expr.
	(skip_if_group): s/CPP_DIRECTIVE/CPP_HASH/
	(do_assert, do_unassert): Rewrite.

	* cpplib.h (TTYPE_TABLE): Remove CPP_ASSERTION.
	(LIST_OFFSET): New flag.
	(struct cpp_toklist): Replace dir_handler and dir_flags with
	dirno and flags.
	(struct cpp_reader): Remove parsing_if_directive and
	parsing_define_directive.

2000-05-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* fixinc/inclhack.def (broken_cabs): Update fix to handle comments
	following the cabs decl which terminate on the following line.
	Add the corresponding test_text case.

2000-05-18  Neil Booth  <NeilB@earthling.net>

	* cppinit.c (cpp_reader_init): Initialise col_adjust and
	default tab stop size.
	(no_num, OPT_ftabstop): New.
	(handle_option): Handle "ftabstop=" command-line option.
	(print_help): Document it.
	* cpplex.c (COLUMN): Remove.
	(handle_newline): Reset col_adjust.
	(skip_whitespace): Update col_adjust as tabs encountered.
	(_cpp_lex_line): Update to use col_adjust.  Call
	skip_whitespace for all whitespace.
	* cpplib.h (struct cpp_options): New member tabstop.
	(struct cpp_reader): New member col_adjust.
	(CPP_BUF_COL): Update.
	(CPP_BUF_COLUMN): New.
	* cpp.texi: Document "-ftabstop=" command line option.

Wed May 17 18:19:41 2000  Philippe De Muyter  <phdm@macqel.be>

	* configure.in (NO_MINUS_C_MINUS_O): Macro made availabe for AC_OUTPUT
	files.
	* configure: Rebuilt.

Wed May 17 18:06:12 2000  John David Anglin <dave@hiauly1.hia.nrc.ca>

	* mklibgcc.in Add missing -DL$name when compiling modules in libgcc1.c.

	* tree.c (build_common_tree_nodes): Do not build TI nodes unless
	HOST_BITS_PER_WIDE_INT is >= 64.

2000-05-17  Richard Henderson  <rth@cygnus.com>

	* jump.c (jump_optimize_1): Remove inactive but real insns
	in jump-to-next-insn optimization.

2000-05-17  Richard Henderson  <rth@cygnus.com>

	* toplev.c (rest_of_compilation): Don't call optimize_mode_switching
	unless OPTIMIZE_MODE_SWITCHING.  Conditionally set no_new_pseudos.
	Don't call recompute_reg_usage if no_new_pseudos is true.
	* lcm.c (optimize_mode_switching): Move ifdefs outside function.
	Return true if we did work; update global life information.
	* basic-block.h (optimize_mode_switching): Update decl.

2000-05-17  Neil Booth  <neilb@earthling.net>

	* cpplex.c (expand_name_space): Don't use ptrdiff_t.

2000-05-17  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.c: New feature, #pragma system_header.
	* cpp.texi: Document special treatment of system headers, and
	the various mechanisms to get a header that special treatment.

2000-05-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* system.h (offsetof): Define at the very end, to ensure we prefer
	the platform's definition if available.

2000-05-16  Bruce Korb  <bkorb@gnu.org>

	* fixinc/fixincl.c: improve the debug displays, ignore SIGPIPE
	* fixinc/server.c: likewise
	* fixinc/fixfixes.c( char_macro_def_fix ): fix regex
	+ #ifdef debugging code + use #def constant for
	sub-pattern count
	* fixinc/inclhack.def( hpux11_fabsf ): Keep HP-UX 11 from stomping
	on C++ math namespace

2000-05-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* fixinc/fixfixes.c (char_macro_use_fix, char_macro_def_fix):
	Don't check the return value of sprintf.  Use asprintf to avoid
	buffer overflows.

Wed May 17 17:27:44 2000  Andrew Cagney  <cagney@b1.cygnus.com>

	* flags.h (warn_unused_function, warn_unused_label,
 	warn_unused_parameter, warn_unused_variable, warn_unused_value):
 	Replace ``warn_unused''.
	(set_Wunused): Add declaration.
	* toplev.c (set_Wunused): New function.
	(warn_unused_function, warn_unused_label, warn_unused_parameter,
 	warn_unused_variable, warn_unused_value): New variables.
	(W_options): Add -Wunused-function, -Wunused-function,
 	-Wunused-label, -Wunused-parameter, -Wunused-variable and
 	-Wunused-value.  Delete -Wunused.  Handled in decode_W_option.

	* toplev.c (decode_W_option): Update -Wunused flags by calling
 	set_Wunused.
  	* c-decl.c (c_decode_option): Ditto for -Wall.

	* stmt.c (expand_expr_stmt, expand_expr_stmt,
 	warn_about_unused_variables): Replace warn_unused with more
 	explicit warn_unused_value et.al.
	* function.c (expand_function_end): Ditto.
	* c-typeck.c (internal_build_compound_expr,
 	internal_build_compound_expr): Ditto.
	* c-decl.c (poplevel, pop_label_level): Ditto.
	* toplev.c (check_global_declarations): Replace warn_unused with
	check for either warn_unused_function or warn_unused_variable.

	* gcc.1, invoke.texi (Warning Options): Document
 	-Wunused-function, -Wunused-function, -Wunused-label,
 	-Wunused-parameter, -Wunused-variable and -Wunused-value options.

Wed May 17 10:28:12 2000  Philippe De Muyter  <phdm@macqel.be>

	* mklibgcc.in (building libgcc1) [Xlibgcc1.a]: Find libgcc1.c in
	$(srcdir), not in the current directory.

2000-05-16  Richard Henderson  <rth@cygnus.com>

	* config/ia64/crtbegin.asm (__dso_handle): Mark hidden if the
	assembler supports it.
	(.fini, .init): Use a gp-relative indirect call.
	(__do_global_dtors_aux): Preserve the gp; rebundle.
	(__do_frame_setup): Likewise.
	* config/ia64/crtend.asm (.IA_64.unwind): Don't terminate with -1.
	(.init): Use a gp-relative indirect call.
	(__do_global_ctors_aux): Preserve the gp.

2000-05-16  Richard Henderson  <rth@cygnus.com>

	* flow.c (commit_one_edge_insertion): Be prepared for a return
	insn to be inserted on the edge with a normal jump.
	* jump.c (jump_optimize_1): Don't look to create return isns.

	* flow.c (flow_delete_insn): Don't adjust reference count of notes.
	* jump.c (jump_optimize_1): Likewise.
	(returnjump_p): Verify the argument is a JUMP_INSN.
	* rtl.def (NOTE): Add 5th element for NOTE_INSN_DELETED_LABEL.

2000-05-16  Nick Clifton  <nickc@cygnus.com>

	* config/m32r/m32r.c (small_insn_p): Use INSN_P() to replace
	GET_RTX_CLASS (GET_CODE ()) == 'i'.
	(large_insn_p): Ditto.
	(m32r_is_insn): New function: Return true if the insn contains
	an executable instruction.
	(m32r_adjust_insn): Use m32r_is_insn.
	(m32r_sched_reorder): Use m32r_is_insn.
	(m32r_sched_variable_issue): Use m32r_is_insn.

2000-05-16  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* rs6000/rs6000.c (rs6000_select_section): Treat CONSTRUCTOR like
	VAR_DECL.

	* rs6000/sysv4.h (ASM_OUTPUT_DWARF_ADDR): Delete unused variable.

	* rs6000/sysv4.h (CPP_OS_LINUX_SPEC): Define __unix and __linux
	according to given options.

Tue May 16 12:17:31 2000  Jeffrey A Law  (law@cygnus.com)

	* mn10200.h (PREFERRED_RELOAD_CLASS): Do not prefer DATA_REGS
	if X has VOIDmode either.
	(LIMIT_RELOAD_CLASS): Similarly.

	* mn10200.md (indirect_jump, tablejump): Use "register_operand",
	not "general_operand" to match the processor's capabilities.

2000-05-16  Bruce Korb  <bkorb@gnu.org>

	* fixinc/README:  corrected return address
	* fixinc/check.diff:  regenerate, now that test works
	* fixinc/fixfixes.c(format_fix,format_write): reformatted
	(char_macro_def_fix,char_macro_use_fix): corrected and
	rewrote to use regex to parse the text
	* fixinc/inclhack.def: more testing
	* fixinc/fixincl.x:  regenerated

	* fixinc/inclhack.def: added several "test_text" attributes
	changed several fixes to use `c_fix = format'
	re-alphabetized the fixes

	* fixinc/check.diff: regenerate
	* fixinc/fixincl.x: regenerate
	* fixinc/check.tpl: added `sparc' and `netinet' to the list
	of created dirs


2000-05-16  Alexandre Oliva  <aoliva@cygnus.com>

	* config/mn10300/mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Remove.

2000-05-15  Richard Henderson  <rth@cygnus.com>

	* toplev.c (rest_of_compilation): Run full jump pass before
	find_basic_blocks of flow2.

2000-05-15  Richard Henderson  <rth@cygnus.com>

	* jump.c: Fix typos and clarify commentary from last change.
	(any_condjump_p): Verify SET_SRC is an IF_THEN_ELSE.
	(safe_to_remove_jump_p): Remove.
	(condjump_label): Use pc_set.

2000-05-15  Richard Henderson  <rth@cygnus.com>

	* ifcvt.c (cond_exec_process_insns): Drop USE and CLOBBER insns
	that get in the way after reload.
	(cond_exec_process_if_block): Skip a label heading THEN block.

2000-05-15  Richard Henderson  <rth@cygnus.com>

	* varasm.c (output_constant_pool): Abort instead of converting
	(improperly) deleted labels to zero.

2000-05-16  Neil Booth  <NeilB@earthling.net>

	* cpplex.c (parse_string2): Update comment.
	(cpp_lex_line): No special assertion treatment for '('.
	* cpplib.c (DIRECTIVE_TABLE): Remove SYNTAX_ASSERT.
	* cpplib.h (SYNTAX_ASSERT): Remove.

Mon May 15 21:45:36 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* jump.c (condjump_p):  Mark as depreached.
	(any_condump_p): New.
	(any_uncondump_p): New.
	(pc_set): New.
	(safe_to_remove_jump_p): New.
	* rtl.h (any_condump_p, any_uncondjump_p, pc_set
	safe_to_remove_jump_p): Declare.

Mon May 15 21:07:20 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* calls.c: Re-install both patches reverted by last patch.
	(struct arg_data): New field tail_call_reg.
	(initialize_argument_information): Initialize tail_call_reg
	(load_register_parameters): New argument flags, use
	tail_call_reg when emiting tail call sequence.
	(expand_call): Update call of load_register_parameters;
	copy unadjusted_args_size to adjusted_args_size.

Mon May 15 19:01:42 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* loop.c (scan_loop, strength_reduce, loop_optimize): Change unroll_p
	and bct_p parameters to flags.
	* loop.h (LOOP_UNROLL, LOOP_BCT): New constants.
	* rtl.h (loop_optimize): Update prototype.
	* toplev.c (rest_of_compilation): Update call of loop_optimize.

2000-05-15  Jakub Jelinek  <jakub@redhat.com>

	* calls.c (expand_call): Move expand_start_target_temps call after
	start_sequence().

2000-05-15  Neil Booth  <NeilB@earthling.net>

	* cpphash.c (trad_stringify, warn_trad_stringify,
	collect_params): Make some pointers pointers to const.
	* cpplex.c (auto_expand_name_space) Guaranteed to always
	expand by at least one character.
	(SPELL_CHAR, SPELL_NONE): Temporarily reverse order.
	(struct token_spelling): Use const U_CHAR * rather than PTR.
	(expand_name_space): Fix up token pointers if name space
	is moved when expanding.
	(INIT_NAME, cpp_scan_line, parse_name, parse_number,
	parse_string2, save_comment, spell_token, cpp_output_list):
	Update so the routines handle tokens with a direct pointer to
	their text, rather than an offset into the token's list's namebuf.
	(_cpp_lex_line): Rearrange for clarity.

	* cpplib.c (_cpp_check_directive): Similarly.
	(do_define): Make SYM a pointer to const.
	* cpplib.h (struct cpp_name): Replace offset with direct pointer.
	(CPP_INT, CPP_FLOAT): Spelling type should be SPELL_IDENT.
	(TOK_OFFSET): Delete.
	(TOK_NAME): Update.

2000-05-14  Geoffrey Keating  <geoffk@cygnus.com>

	* config/rs6000/rs6000.h (RETURN_ADDRESS_OFFSET): Correct for
	64-bit ABI.

	* config/rs6000/rs6000.c (logical_operand): Rewrite to take MODE 
	into account.
	(logical_u_operand): Delete.
	(non_logical_cint_operand): Rewrite to take MODE into account.
	(non_logical_u_cint_operand): Delete.
	(boolean_operator): New function.
	(print_operand): Add new %q operand.
	* config/rs6000/rs6000.h (PREDICATE_CODES): Add boolean_operator,
	remove logical_u_operand and non_logical_u_cint_operand,
	update logical_operand and non_logical_cint_operand.
	* config/rs6000/rs6000.md: Rewrite the patterns for performing
	logical operations to use %q.

	* config/rs6000/rs6000.md (movsi): Don't modify RTL in-place.
	(movdi): Make similar to movsi.
	* config/rs6000/rs6000.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): There
	is no such thing as a DImode CONST_DOUBLE.
	* config/rs6000/rs6000.c (output_toc): Likewise.
	
	* config/rs6000/rs6000.c (output_cbranch): Don't output prediction
	codes when old mnemonics are in use.  Print register names
	for cc registers when requested.

	* optabs.c (expand_float): Don't allow mode widening that causes
	double rounding.

	* invoke.texi (RS/6000 and PowerPC Options): Update -m64/-m32
	flags to their current names -maix64 and -maix32.

2000-05-14  Bruce Korb  <bkorb@gnu.org>

	* fixinc/fixfixes.c(wrap_fix): new fix - inserts text before
	and/or after current text of file
	* fixinc/fixlib.c(must_malloc):
	* fixinc/fixlib.h(must_malloc): + reformatting
	* fixinc/inclhack.def: replace the "1i" and "$a" sed commands
	with usages of ``c_fix = wrap;''
	Add several tests and use the ``c_fix = format'' fixer more.
	* fixinc/fixincl.x: regen
	* fixinc/check.diff: regen
	* fixinc/check.tpl: emit the associated header with the missing
	test message

Sun May 14 17:58:59 2000  Hans-Peter Nilsson  <hp@axis.com>

	* mklibgcc.in (building libgcc1) [Xlibgcc1.a]: Do not use unset
	variables $src and $dst.
	
2000-05-13  Gabriel Dos Reis <gdr@codesourcery.com>

	* diagnostic.h (DIAGNOSTICS_SHOW_PREFIX_ONCE): New macro.
	(DIAGNOSTICS_SHOW_PREFIX_NEVER): Likewise.
	(DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE): Likewise.
	(struct output_buffer: emitted_prefix_p, prefixing_rule): New
	fields. 
	(set_message_prefixing_rule): Declare.

	* diagnostic.c: (current_prefixing_rule): New variable.
	(set_message_prefixing_rule): Define.
	(output_set_prefix): Adjust buffer->emitted_prefix_p.
	(init_output_buffer): Adjust Initialization.
	(output_emit_prefix): Rewrite.  Take prefixing rules into account.
	
Sat May 13 11:05:47 2000  Philippe De Muyter  <phdm@macqel.be>

	* ifcvt.c (if_convert): Do not free NULL.

2000-05-12  Nick Clifton  <nickc@cygnus.com>

	* config/fr30/fr30.c (fr30_move_double): New function:  Emit code
	to move a double word value.
	(di_operand): New function: Return true if the operand is suitbale
	for a double word move operation.
	(nonimmediate_di_operand): New function: Return true if the
	operand is a DImode register or MEM.

	* config/fr30/fr30.h (PREDICATE_CODES): Add di_operand and
	nonimmediate_di_operand.

	* config/fr30/fr30-protos.h Add fr30_move_double, di_operand, and
	nonimmediate_di_operand.

	* config/fr30/fr30.md (movdi): New pattern.  Required because
	other patterns generate DImode results.
	(movdi_insn): New pattern.

2000-05-12  Richard Henderson  <rth@cygnus.com>

	* config/alpha/alpha.c (struct shadow_summary): Define
	bitfields as type unsigned int.

Sat May 13 00:09:59 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/t-avr: Added definition of FLOAT while generates
	fp-bit.c

	* config/avr/avr.md: `NEXT_INSN (insn)' substituted to `insn' in
	peepholes for tst+jump = sbrs/sbrc optimization.

Fry May 12 20:03:00 CEST 2000  Jan Hubicka  <jh@suse.cz>

	* expr.c (emit_push_insn): Do not adjust stack pointer when
	preallocating.

Fri May 12 19:03:58 2000  Philippe De Muyter  <phdm@macqel.be>

	* ggc-simple.c (offsetof): Macro fallback definition moved from here ..
	* system.h (offsetof): ... to here.

2000-05-12  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (final.o): Depend on BASIC_BLOCK_H.
	* final.c (final_end_function): Use app_disable.  Rearrange note
	handling into a switch.  Emit deleted labels.
	(output_asm_label): Generate label strings for deleted labels.
	* flow.c (tail_recursion_label_list): New.
	(find_basic_blocks_1): Set label_value_list directly.  Collect list
	of tail recursion labels from call_placeholders.  Don't add deleted
	labels to the label value list.
	(cleanup_cfg): Use free_EXPR_LIST_list.
	(flow_delete_insn_chain): Turn non-removable labels into notes.
	(flow_delete_block): Don't disable deleting the block because of
	a non-removable label.
	(tail_recursion_label_p): New.
	(merge_blocks_move_predecessor_nojumps): Don't disable the merge
	because of a label.
	(merge_blocks_move_successor_nojumps): Likewise.  Also move a
	jump table.
	(merge_blocks): Disable a merge because of tail recursion labels.
	* ifcvt.c (merge_if_block): Don't disable a merge because of a label.
	Use a more accurate measure of not merging the join block.
	(find_if_block): Don't disable conversion because of a label.
	(find_if_case_1, find_if_case_2): Likewise.
	* jump.c (duplicate_loop_exit_test): Preserve the kind of list
	element when copying.
	(squeeze_notes): Also leave EH notes.
	(mark_jump_label): Ignore deleted labels.  Use an INSN_LIST for
	REG_LABEL notes.
	(delete_insn): Preserve LABEL_NAME in NOTE_SOURCE_FILE when
	deleting a label.
	* print-rtl.c (print_rtx): Print NOTE_SOURCE_FILE for
	NOTE_INSN_DELETED_LABEL.  Print `[# deleted]' for a label_ref
	referring to a deleted label.  Convert tail handling to a switch.
	* rtl.def (CODE_LABEL): Rearrange elements to be compatible with NOTE
	for NOTE_INSN_DELETED_LABEL.
	(NOTE): Fix commentary.
	* rtl.h (REG_LABEL): Update commentary wrt INSN_LIST.
	(REG_CC_SETTER, REG_CC_USER, REG_LIBCALL): Likewise.
	(CODE_LABEL_NUMBER, LABEL_NAME): Update index.
	(LABEL_NUSES, LABEL_REFS): Likewise.
	* unroll.c (copy_loop_body): Don't copy NOTE_INSN_DELETED_LABEL.

2000-05-12  Bruce Korb  <bkorb@gnu.org>

	* fixinc/fixfixes.c(format_write): buglet & relaxed rules
	* fixinc/check.diff: updated
	* fixinc/inclhack.def: corrected & added some test_text-s
	* fixinc/genfixes: removed unneeded options to autogen invocation
	* fixinc/fixincl.tpl: Specified the output file
	* fixinc/fixfixes.c: visual appearance
	* fixinc/fixincl.x: regenerate

2000-05-12  Zack Weinberg <zack@wolery.cumb.org>

	* fixinc/fixfixes.c (IO_use_fix, IO_defn_fix, CTRL_use_fix,
	CTRL_defn_fix): Delete.
	(fix_char_macro_defines, fix_char_macro_uses): Rename to
	char_macro_def_fix and char_macro_use_fix, respectively.  Put
	them into the FIXUP_TABLE.  Get the string to search for from
	a c_fix_arg.

	(format_write): New function.
	(format_fix): Use it.

	(FIX_PROC_HEAD): Constify text parameter.
	(machine_name_fix): Constify all char *s.
	* fixtests.c (skip_quote): Remove double static.

	* inclhack.def (io_def_quotes, io_use_quotes, ctrl_def_quotes,
	ctrl_use_quotes): Update for new scheme.
	* fixincl.x: Regenerate.

2000-05-12  Alexandre Oliva  <aoliva@cygnus.com>

	* config/mn10300/mn10300.h (PREFERRED_DEBUGGING_TYPE): Redefine as
	DWARF2_DEBUG.
	(DWARF2_ASM_LINE_DEBUG_INFO): Define.
	(ASM_OUTPUT_DWARF2_ADDR_CONST): Define.

2000-05-11  Robert Lipe <robertlipe@usa.net>

	* fixinc/inclhack.def (hpux8_bogus_inlines): Delete bypass for SCO.
	* fixincl.x: Regenerate.

2000-05-11  Richard Henderson  <rth@cygnus.com>

	* calls.c: Revert both 05-09 patches.

2000-05-11  Alexandre Oliva  <aoliva@cygnus.com>

	* config/mn10300/mn10300.c (print_operand): Print FP constants in
	hexadecimal.
	* config/mn10300/mn10300.md (movsf, movdf): Use the `F' constraint
	for FP values.

	* mklibgcc.in (EQ): Define it to an equal sign in the Makefile,
	and replace any occurrences of `=' in multilib dirs with `$(EQ)'.

2000-05-11  Jason Merrill  <jason@casey.cygnus.com>

	* fixinc/fixincl.c (run_compiles): Don't crash on null pz_machine.

2000-05-11  Zack Weinberg  <zack@wolery.cumb.org>

	* fixinc/fixfixes.c, fixinc/fixtests.c: Update commentary.

Thu May 11 22:28:05 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr-protos.c (jump_over_one_insn_p): New declaration.
	* config/avr/avr.c (jump_over_one_insn_p): New function.
	* config/avr/avr.md: New peepholes added. Output test and
	conditional jump to "sbrc" or "sbrs" command.

2000-05-11  Mark Elbrecht  <snowball3@bigfoot.com>

	* cppmain.c (main): Use IS_DIR_SEPARATOR.

2000-05-11  Jakub Jelinek  <jakub@redhat.com>

	* except.c (find_exception_handler_labels_1): New function.
	(find_exception_handler_labels): Split into two functions, dive
	into CALL_PLACEHOLDERs when looking for exception handler labels.

2000-05-11 Stan Cox <scox@cygnus.com>

	* regrename.c (replace_reg_in_block): Improve REG_DEAD handling.
	* timevar.def (TV_RENAME_REGISTERS): Move before TV_SCHED2.
	* toplev.c (rest_of_compilation): Call regrename_optimize before sched2.

2000-05-11  Bruce Korb  <bkorb@gnu.org>

	* fixinc/fixfixes.c (double_slash_fix):  obsolete
	(else_endif_label_fix): obsolete
	(format_fix):  new, unused as yet
	(main): obsolete
	* fixinc/fixlib.h: added fix description struct for use by format_fix
	* fixinc/fixincl.c: removed the struct & test for SIGIOT befure using
	* fixinc/Makefile.in:  compile fixfixes.c and fixtests.c as separate
	modules.  Removed the vestiges of the script version.
	Added support for "make check".
	* fixinc/check.diff: base diff file (needs work!!)
	* fixinc/check.tpl: quiet the fixup output
	* fixinc/fixtests.c (main): obsolete
	* fixinc/fixincl.sh:  don't bother copying fixincl to ..
	* fixinc/fixincl.tpl:  provide for arguments to c_fix routines

Thu May 11 11:57:02 MET DST 2000  Jan Hubicka <jh@suse.cz>

	* toplev.c (rest_of_compilation): Remove dead code after
	combine.

2000-05-11  Zack Weinberg  <zack@wolery.cumb.org>

	* cpphash.c (collect_funlike_expansion): Make "# is not
	followed by a macro argument name" a pedwarn, not an error.
	Preserve the # in the output.  Suppress the warning if lang_asm.

Thu May 11 01:19:31 2000  Jeffrey A Law  (law@cygnus.com)

	* configure.in (hppa*64*-*-hpux11*): New target for PA64 support.
	* configure: Rebuilt.

2000-05-10 Laurynas Biveinis <lauras@softhome.net>

	* i386/xm-djgpp.h (XREF_FILE_NAME): Add mising brace.

2000-05-10  Kazu Hirata  <kazu@hxi.com>

	* combine.c (try_combine): Fix a typo.

Wed May 10 21:31:44 2000  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64.md (insv): Add comment.

2000-05-10  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (libgcc.a, stmp-multilib): Depend on FPBIT and DPBIT.
	* mklibgcc.in: Rewrite to not use functions.  Don't shortcut
	dependancies on FPBIT and DPBIT.

2000-05-10  Nick Clifton  <nickc@redhat.com>

	* flow.c (find_auto_inc): Do not bias REG_N_REFS by loop_depth
	when optimising for size.
	(mark_used_regs:) Ditto.
	(try_pre_increment_1): Ditto.

2000-05-10  Zack Weinberg  <zack@wolery.cumb.org>

	* cppexp.c (lex): Use %.*s to print non-NUL-terminated string.
	Make error message friendlier.

	* cpphash.h (struct hashnode): Use struct hack for name
	member.
	* cpphash.c (struct hashdummy): New.
	(eq_HASHNODE): Second argument is a hashdummy, not a HASHNODE.
	(make_HASHNODE): No need to set ->name pointer.  Correct
	setting of p.
	(cpp_lookup): Make 'dummy' a struct hashdummy.  Tidy up a bit.

2000-05-10  Richard Henderson  <rth@cygnus.com>

	* flow.c (find_basic_blocks_1): Remove any spare bb_note
	after completion.

2000-05-10  Bruce Korb  <bkorb@gnu.org>

	* fixinc/gnu-regex.c:  reg_syntax_t re_syntax_options must be static

2000-05-10  Eric Schweitz  <schweitz@nortelnetworks.com>

	* dwarfout.c (dwarfout_finish): Call retry_incomplete_types
	after we enter .debug.

2000-05-10  Jason Merrill  <jason@casey.cygnus.com>

	* dwarf2out.c (gen_subprogram_die): Fixup die_parent for the
	abstract instance of a nested inline function.

	* stor-layout.c (finish_record_layout): finalize_type_size
	before laying out the pending_statics.

Wed 10 May 09:36:47 2000  Neil Booth  <NeilB@earthling.net>

	* cpplex.c (spell_token): New function.
	(spell_string, spell_comment, spell_name): fold into
	spell_token.	
	(I, S): Add macros.
	(E, H): Remove macros.
	(save_comment): Save comment opening characters too.
	(_cpp_lex_file): Update to use spell_token.  Tidy up comment
	handling.
	* cpplib.h (I, S): Add macros.
	(E, H): Remove macros.
	(TTYPE_TABLE): Update entries for new speller.
	(SYNTAX_ASSERT): Remove.

Wed 10 May 09:08:30 2000  Neil Booth  <NeilB@earthling.net>

	* cpplex.c (_cpp_lex_line): Maintain PREV_WHITESPACE flag
	when removing escaped newlines.  Reverse sense of test for
	escaped newline.

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

	* flow.c (find_basic_blocks_1): Do not delete the first
	bb_note we run across.
	(create_basic_block): Use reorder_insns to move an existing
	bb_note to the correct place.

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

	* calls.c (expand_call): Increment currently_expanding_call
	before calling optimize_tail_recursion.

Tue May  9 18:54:16 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* reload1.c (reload_combine): Fix errors in last change.

2000-05-09  Zack Weinberg  <zack@wolery.cumb.org>

	* gcc.c (used_arg): Skip over a semicolon at the end of the
	split-up loop; don't break out of it.

	* Makefile.in (WARN_CFLAGS): Add -Wwrite-strings.
	(tree.o): Depend on output.h.

	* c-decl.c (pending_invalid_xref_file,
	current_function_prototype_file): Constify.
	(pushdecl): Constify a local char *.
	(define_label): Constify filename parameter.
	* c-lex.c (init_parse): Constify parameter and return value.
	* c-typeck.c (c_expand_asm_operands): Constify filename parameter.
	* c-tree.h: Update prototypes.
	* c-parse.in: Constify filename member of %union, and if_stmt_file.
	* c-parse.y, c-parse.c, c-parse.h, objc/objc-parse.y,
	objc/objc-parse.c: Regenerate.

	* dwarfout.c (dwarfout_init): Constify main_input_filename parameter.
	* dwarfout.h: Update prototypes.
	* expr.c (expand_expr): Constify a local char *.
	* flags.h: Constify main_input_filename.
	* function.c (expand_function_end): Constify filename parameter.
	* genrecog.c (make_insn_sequence): Use a character array for
	c_test_pos.
	(main): Remove unused variables.
	* input.h: Constify input_filename, main_input_filename, and
	file_stack.name.  Update prototypes.
	* output.h: Declare first_global_object_name and
	weak_global_object_name here, as const char *.
	* stmt.c (expand_asm_operands): Constify filename parameter.
	* toplev.c (compile_file, push_srcloc, debug_start_source_file):
	Constify filename parameter.
	(input_filename, main_input_filename): Constify.
	* toplev.h: Update prototypes.
	* tree.c: Include output.h.  Don't declare
	first_global_object_name or weak_global_object_name.  Clean up string
	bashing in get_file_function_name_long.
	* tree.h (struct tree_decl): Constify filename member.
	(input_filename): Constify.
	Update prototypes.
	* varasm.c (first_global_object_name, weak_global_object_name):
	Constify.
	(assemble_start_function, assemble_variable): Clean up string bashing.

	* gcc.c: Constify all spec-related strings initialized,
	transitively, from string constants.  Constify all strings
	and string variables related to multilibs.
	(set_spec, read_specs): Cast argument to free to PTR.
	(used_arg): Do not modify multilib_matches.  Use strncmp plus
	length comparison to compare multilib switches.
	* genmultilib: Constify everything declared in multilib.h.

Tue May  9 22:28:03 2000  Denis Chertykov  <denisc@overta.ru>

	* flow.c (flow_delete_insn): Use INSN_DELETED_P for marking insn
	as deleted.

Tue May  9 20:52:43 2000  Denis Chertykov  <denisc@overta.ru>

 	* config/avr/avr-protos.h (extra_constraint): change a type of
	second argument from char to int to avoid warnings.
	(asm_output_byte): Likewise.
	
	* config/avr/avr.c (MAX_LD_OFFSET) New macro.
	(initial_elimination_offset): Handle elimination from
	FRAME_POINTER_REGNUM to STACK_POINTER_REGNUM.
	(legitimate_address_p): Use MAX_LD_OFFSET.
	(legitimize_address): Likewise.
	(out_movqi_r_mr): Likewise.
	(out_movhi_r_mr): Likewise, use `fatal_insn' instead of `fatal'.
	(out_movsi_r_mr): Use MAX_LD_OFFSET.
	(out_movsi_mr_r): Likewise.
	(out_movqi_mr_r): Likewise.
	(out_movhi_mr_r): Likewise.
	(notice_update_cc): Correct CC for the ashrqi3 with the shift
	count as CONST_INT != 6.
	(ashlqi3_out): Coding style modifications. Run `fatal_insn' if
	shift count is a CONSTANT_P, but not a CONST_INT.
	(ashlhi3_out): Coding style modifications.
	(ashlsi3_out): Likewise.
	(ashrhi3_out): Likewise.
	(ashrsi3_out): Likewise.
	(lshrhi3_out): Likewise.
	(lshrsi3_out): Likewise.
	(ashrqi3_out): Generate shift for any known constant count without
	scratch register. Run `fatal_insn' if shift count is a CONSTANT_P,
	but not a CONST_INT.
	(lshrqi3_out): Coding style modifications. Run `fatal_insn' if
	shift count is a CONSTANT_P, but not a CONST_INT. 
	(extra_constraint): change a type of
	second argument from char to int to avoid warnings.
	(asm_output_byte): Likewise.
	(asm_file_end): Output size generated commands count as a hex
	number too.

	* config/avr/avr.h (RETURN_ADDR_RTX): New macro.

	* config/avr/avr.md (addhi3): Fragment commented by &&0 is
	removed.
	(ashlqi3): Values of "length" attribute changed. Shift count
	uses constraints 'n' instead of 'i'.
	(ashrqi3): Likewise. Values of "cc" attribute changed. Generate
	shifts without clobber register.
	(lshrqi3): Shift count uses constraints 'n' instead of 'i'.
	(call_insn): Correct test for which_alternative == 1 (was 0).
	(call_value_insn): Likewise.
	
	* config/avr/t-avr: Remove definition of FLOAT while generates
	fp-bit.c

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

	* fixinc/check.tpl:  Template for checking fixes
	* fixinc/inclhack.def:  Added 'test_text' for many fixes
	disable hpux8_bogus_inlines on SCO
	* fixinc/fixinc.sco:  Oh, yes, we don't need this any more.

Tue May  9 16:30:27 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* calls.c (expand_call): Reorganize somewhat in order
	to avoid unnecesary recalculation inside loop and make
	tail call failure code cleaner.
	
Tue May  9 06:30:20 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* alias.c (nonlocal_reference_p): Minor reformatting.
	* reload.c (find_equiv_reg): Simplify logic for
	CALL_INSN_FUNCTION_USAGE since can't have SUBREG or pseudos and
	some some reformatting.
	* reload1.c (reload_combine): Don't assume everything in
	CALL_INSN_FUNCTION_USAGE is a REG and clean up code a bit.

2000-05-08  Richard Henderson  <rth@cygnus.com>

	* final.c (current_insn_predicate): New.
	(final_scan_insn): Set it.
	* output.h (current_insn_predicate): Declare.

	* ifcvt.c (cond_exec_process_insns): New argument prob_val.
	Attach it to call insns.
	(cond_exec_process_if_block): Track probability for true and
	false branches.
	(dead_or_predicable): Likewise.

	* predict.c (PROB_NEVER, PROB_VERY_UNLIKELY): New.
	(PROB_UNLIKELY, PROB_EVEN, PROB_LIKELY): New.
	(PROB_VERY_LIKELY, PROB_ALWAYS): New.
	(estimate_probability, expected_value_to_br_prob): Use them.

	* config/ia64/ia64-protos.h (ia64_expand_prediction): Declare.
	* config/ia64/ia64.c (ia64_print_operand_address): Handle 'j'.
	(ia64_expand_prediction): New.
	(emit_insn_group_barriers): Don't look at notes.  Emit barriers
	as needed after calls.
	(ia64_epilogue_uses): Mark b0 used.
	* config/ia64/ia64.md (beq_true, beq_false): Remove.
	(bne_true, bne_false): Remove.
	(eq_return, eq_not_return, ne_return, ne_not_return): Remove.
	(br_true, br_false): New.  Use predicate_operator and
	ia64_expand_prediction.
	(return_true, return_false): Likewise.
	(call_internal): Use ia64_expand_prediction.  Don't emit stop bit.
	(call_internal1, call_value_internal): Likewise.
	(call_value_internal1, call_multiple_values_internal1): Likewise.

	* config/ia64/ia64.c (ia64_direct_return): Require frame size zero.

	* config/ia64/ia64.md (extendsfdf2): Split only after reload.

2000-05-08  Richard Henderson  <rth@cygnus.com>

	* rtlanal.c (may_trap_p): Consider old-style and volatile
	asms to trap.

Mon May  8 17:16:48 2000  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64.h (RETURN_ADDR_RTX): Use COUNT not count.

2000-05-08  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.h (predicate_operator): Declare.

	* config/ia64/ia64.md (extendsfdf2): Split the nop case out
	of existance.

	* gensupport.c (process_rtx): Copy and post-process each member
	of the define_insn rtvec individually.

Mon  8 May 22:17:35 2000  Neil Booth  <NeilB@earthling.net>

	* cpplex.c (spell_token): New function.
	(TOKEN_LEN): Add 1 for whitespace.
	(_cpp_lex_file): Update to use spell_token.
	* cpplib.h (E): Remove.
	(TTYPE_TABLE): Update CPP_VSPACE entry.

2000-05-08  Richard Henderson  <rth@cygnus.com>

	* flow.c (init_propagate_block_info): Watch out for conditional
	branch to next instruction, and thus one outgoing edge.

	* config/ia64/ia64.c (ia64_encode_section_info): Exit early
	for global register variables; don't special case __[CD]TOR_LIST__;
	mind ggc_p for string allocation.

2000-05-08  Nick Clifton  <nickc@cygnus.com>

	* config/i386/i386.h (ELIMINABLE_REGS): Fix comment.

2000-05-08  Bruce Korb  <bkorb@gnu.org>

	* fixinc/mkfixinc.sh:  fixinc.sco is no longer used
	i?86-*-msdosdjgpp* no longer uses fixincludes
	* fixinc/genfixes:  inclhack.sh and fixincl.sh are no longer generated
	* fixinc/inclhack.sh:  deleted
	* fixinc/hackshell.tpl:  deleted
	* fixinc/inclhack.tpl:  deleted
	* fixinc/Makefile.in:  Remove dependencies on above
	* fixinc/fixincl.sh:  "DO NOT EDIT" text modified

2000-05-08  Andreas Jaeger  <aj@suse.de>

	* config/mips/linux.h: Remove undefines which disabled .ctor/.dtor
	support.

2000-05-07  Zack Weinberg  <zack@wolery.cumb.org>

	* Makefile.in (LOOSE_CFLAGS): Add /g modifiers to both sed
	substitutions.

Sun  7 May 08:43:53 2000  Neil Booth  <NeilB@earthling.net>

	* cpplex.c: Move new lexer definitions and prototypes
	to top.  Conditional include these and the code if
	NEW_LEXER is defined.  Rename functions whose names
	clash if this code included.

Sun May  7 00:54:57 EDT 2000  John Wehle  (john@feith.com)

	* rtl.def (COND_EXEC): Clarify.

	* i386.md (extendsidi2): Clobber (reg:CC 17) in the
	same fashion as zero_extendsidi2.

2000-05-06  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.c (predicate_operator): New.
	(ia64_print_operand): Handle 'J'.
	(rtx_needs_barrier): Handle COND_EXEC.
	* config/ia64/ia64.h (BRANCH_COST): Define.
	(PREDICATE_CODES): Update.
	* config/ia64/ia64.md: Docuement used unspec values.
	(attr predicable): New.
	(movxf, movxf_internal): New.
	(extendsfdf2): Don't comment out nop.
	(floatdidf2): Remove.
	(truncxfsf2, truncxfdf2, floatdixf2): New.
	(abssi2, absdi2): Put the neg in the "true" slot.
	(conditional branch instructions): Mark not predicable.
	(cmov*_internal): Use predicate_operator.  Split to cond_exec.
	(abs*_internal): Likewise.
	(alloc, set_bsp): Mark not predicable.
	(barrier, insn_group_barrier, flush_cache): Likewise.
	(define_cond_exec): New.

2000-05-06  Richard Henderson  <rth@cygnus.com>

	* c-decl.c: Include "tm_p.h".

	* config/ia64/ia64-protos.h: Rearrange decls to reduce ifdef madness.
	(fetchadd_operand, ia64_expand_fetch_and_op): Declare.
	(ia64_expand_op_and_fetch): Declare.
	* config/ia64/ia64.c: Include "toplev.h".  Kill trailing whitespace.
	(setjmp_operand): Constify variables for XSTR.
	(ia64_encode_section_info): Likewise.
	(ia64_print_operand): Use %d for exact_log2; cast 32-bit printed
	values to int.
	(ia64_asm_output_external): Constify name.
	(process_set): Use HOST_WIDE_INT_PRINT_DEC for frame size.
	(process_for_unwind_directive): Provide switch default.
	(ia64_expand_compare_and_swap): Remove unused variables.
	(ia64_expand_builtin): Likewise.
	* config/ia64/ia64.h (ASM_OUTPUT_BYTE): Mask and cast value to int
	for printing.

	* config/ia64/ia64.c (sdata_symbolic_operand): Mark unused args.
	(symbolic_operand, function_operand, setjmp_operand): Likewise.
	(shift_count_operand, shift_32bit_count_operand): Likewise.
	(shladd_operand, fetchadd_operand, ia64_function_prologue): Likewise.
	(ia64_function_epilogue, ia64_setup_incoming_varargs): Likewise.
	(ia64_function_arg_partial_nregs, ia64_function_value): Likewise.
	(ia64_print_operand_address, ia64_secondary_reload_class): Likewise.
	(ia64_expand_builtin): Likewise.
	(call_multiple_values_operation): Make dest_regno unsigned.

2000-05-06  Richard Henderson  <rth@cygnus.com>

	* rtl.def (DEFINE_COND_EXEC): New.
	* md.texi: Document it.

	* gensupport.c (input_file): Remove.
	(struct queue_elem): Add lineno.
	(rtx_ready_queue): Remove.
	(errors): New.
	(predicable_default): New.
	(predicable_true, predicable_false): New.
	(define_attr_queue, define_attr_tail): New.
	(define_insn_queue, define_insn_tail): New.
	(define_cond_exec_queue, define_cond_exec_tail): New.
	(other_queue, other_tail): New.
	(queue_pattern): New.
	(process_rtx): Add patterns to the appropriate queues.
	(is_predicable, identify_predicable_attribute): New.
	(n_alternatives, collect_insn_data): New.
	(alter_predicate_for_insn, alter_test_for_insn): New.
	(shift_output_template, alter_output_for_insn): New.
	(process_one_cond_exec, process_define_cond_exec): New.
	(init_md_reader): Read the entire file.  Process define_cond_exec.
	(read_md_rtx): Return elements from the queues.

2000-05-06  Richard Henderson  <rth@cygnus.com>

	* flow.c (mark_set_1): Don't update conditional life info
	if the register is not_dead.

2000-05-06  Zack Weinberg  <zack@wolery.cumb.org>

	* Makefile.in (STAGESTUFF): Add genrtl.c and genrtl.h.
	(mostlyclean): Also delete fixincl, fixinc.sh, and
	specs.ready, and make clean in the fixinc subdir.

2000-05-06  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (gensupport.o): Compile for the host.
	(host-prefix gensuuprt.o): Remove.
	(genflags.o): Depend on gensupport.h and OBSTACK_H.
	(genattrtab.o): Likewise.
	(gencodes.o): Depend on gensupport.h.
	(genemit.o, genopinit.o, genrecog.o, genextract.o): Likewise.
	(genpeep.o, genattr.o, genoutput.o): Likewise.

	* gensupport.c (obstack, rtl_obstack): New.
	(init_md_reader): Initialize rtl_obstack.
	* gensupport.h (rtl_obstack): Declare.
	(message_with_line): Declare.

	* genattr.c: Remove all traces of obstack manipulation.
	* gencodes.c, genconfig.c, genemit.c, genextract.c: Likewise.
	* genopinit.c, genoutput.c, genpeep.c, genrecog.c: Likewise.

	* genattrtab.c (obstack, rtl_obstack): Remove.
	(main): Don't init rtl_obstack.
	* genflags.c: Likewise.

	* genrecog.c (message_with_line): Move ...
	* gensupport.c: ... here.

2000-05-06  Richard Henderson  <rth@cygnus.com>

	* c-typeck.c (build_c_cast): Remove dead code.

2000-05-06  Richard Henderson  <rth@cygnus.com>

	* flow.c (split_edge): Don't allocate global_live_at_start for
	the new block unless the old blocks had them as well.

	* flow.c (mark_set_1): Respect not_dead when updating reg_live.

	* ifcvt.c (noce_process_if_block): Don't use an insn_b from
	test_bb if a or b uses x.

2000-05-06  Zack Weinberg  <zack@wolery.cumb.org>

 	* cpphash.h: Remove conditional #define of __extension__.
 	* rtl.h: Add __extension__ to RTL_CHECK1, RTL_CHECK2,
 	RTL_CHECKC1, RTL_CHECKC2, and RTVEC_ELT macros
 	(ENABLE_RTL_CHECKING only).
 	* tree.h: Add __extension__ to TREE_CHECK, TREE_CLASS_CHECK,
 	CST_OR_CONSTRUCTOR_CHECK, and EXPR_CHECK macros
 	(ENABLE_TREE_CHECKING only).
 	* varray.h: Add __extension__ to VARRAY_CHECK macro
 	(ENABLE_CHECKING only).

2000-05-06  Richard Earnshaw (reanrsha@arm.com)

	Use new tail-calling mechanism on ARM.
	* arm.md (sibcall, sibcall_value): New expands.
	(sibcall_insn, sibcall_value_insn, sibcall_epilogue): New insns.
	(tailcalling peepholes): Delete.
	(push_multi): Simplify.
	* arm.c (lr_save_eliminated): Delete definition.
	(pattern_really_clobbers_lr, function_really_clobbers_lr): Delete.
	(output_return_instruction): Remove checks on lr_save_eliminated.
	(output_arm_prologue): Remove old tail-calling code.
	(arm_output_epilogue): New parameter, really_return.  All callers
	changed.  Handle tail-calling epilogues.
	* arm.h (lr_save_eliminated): Delete declaration.
	(frame_pointer_needed): Delete declaration.
	* arm-protos.h (arm_output_epilogue): Adjust prototype.

	* arm.md (is_thumb): Examine symbol thumb_code, not expression
	TARGET_ARM.
	* arm.c (thumb_code): Define it.
	(arm_override_options): Set it.
	* arm.h (thumb_code): Declare it.
	
2000-05-06  Richard Earnshaw (reanrsha@arm.com)

	* arm-protos.h (arm_dllexport_name_p, arm_dllimport_name_p): Constify.

2000-05-06  Richard Earnshaw (reanrsha@arm.com)

	* arm.c (arm_gen_load_multiple, arm_gen_store_mulitple): Don't add
	bogus clobber to insns.
	(load_multiple_operation, store_mulitple_operation): Don't check 
	for it.
	* arm.md (ldmsi_postinc, stmsi_postinc): Adjust accordingly.

	* arm.md (and_scc, ior_scc): Add missing mode.

	* arm.md (call_value_symbol): Remove predicate from op2.

	* arm.h (SPECIAL_MODE_PREDICATES): Define.
	
Sat May  6 06:25:56 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* expr.c (get_subtarget): New function.
	(force_operand, expand_expr, do_store_flag): Use it.

	* toplev.c (compile_file): Don't take strlen of NAME if null.

2000-05-06  David Edelsohn  <edelsohn@gnu.org>

	* xcoffout.c (xcoff_current_include_file,
	xcoff_current_function_file, xcoff_lastfile): Constify char *.
	(xcoffout_source_file, xcoffout_source_line): Make filename 'const
	char *'.
	(xcoffout_declare_function): Make name 'const char *'.
	(xcoffout_end_epilogue): Make fname 'const char *'
	* xcoffout.h (xcoff_current_include_file, xcoff_lastfile,
	xcoffout_declare_function, xcoffout_source_line): Match above.

	* aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -mpowerpc64 without
	-maix64	is error.
	* rs6000.c (print_operand): Fix lossage typo.
	(output_cbranch): Remove "cr" decoration for now.
	* rs6000.h (ASM_OUTPUT_DEF_FROM_DECLS): Make alias 'const char *'. 

Sat May  6 06:55:32 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.c (out_shift_with_cnt): Bugfix for shift by
	constant count.

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

	* fixinc/genfixes: Improve the matching for make target names

2000-05-05  Catherine Moore  <clm@cygnus.com>

	* c-common.c (decl_attributes):  For TYPE_DECLs attach the
	attribute to the decl.
	* c-decl.c (pushdecl): Propagate the USED attribute to the 
	type copy.

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

	* rtlanal.c (reg_overlap_mentioned_p): Treat parallels in the
	same way emit_group_load does.

2000-05-05 Mark Elbrecht <snowball3@bigfoot.com>

	* gcc.c (set_input) [HAVE_DOS_STYLE_FILE_SYSTEM]: Skip drive name.

	* toplev.c (output_file_directive): Use IS_DIR_SEPARATOR.
	(main): Likewise.

2000-05-05 Rodney Brown	<RodneyBrown@mynd.com>

	* pa.h (FUNCTION_ARG_ADVANCE): Warning removal.

Fri May  5 10:29:21 2000  Marc Espie <espie@cvs.openbsd.org>

	* config/openbsd.h (LINK_SPEC): pass correct flags to ld 
	to support -shared, on platforms with dynamic libraries.

Fri May  5 10:27:06 2000  Philippe De Muyter  <phdm@macqel.be>

	* system.h (S_ISBLK): Provide fallback definition.

2000-05-05  Geoff Berry  <geoffb@bops.com>

	* extend.texi (Extended Asm): Document inability to give asm
	statements access to condition codes.

2000-05-05  Marek Michalkiewicz  <marekm@linux.org.pl>

	* varasm.c (asm_emit_uninitialised): Use 0, not NULL
	as arg 2 of UNIQUE_SECTION.

Fri May  5 10:11:41 2000  Jeffrey A Law  (law@cygnus.com)

	* predict.c: Remove May 4 change.
	* bb-reorder.c (make_reorder_chain): Do not perform block movement
	if we have predicted the branch at 50-50 probability.

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

	* flow.c (init_propagate_block_info): Fix merge error
	in HAVE_conditional_execution code.

Fri May  5 07:43:50 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.c (out_shift_with_cnt): Genetare a more optimal
	shift cycle for unknown shift count. Also generates dec + brpl.
	(ashlqi3_out): Don't generate dec + brpl which now generates by
	`out_shift_with_cnt'.
	(ashlhi3_out): Likewise.
	(ashlsi3_out): Likewise.
	(ashrqi3_out): Likewise.
	(ashrhi3_out): Likewise.
	(ashrsi3_out): Likewise.
	(lshrqi3_out): Likewise.
	(lshrhi3_out): Likewise.
	(lshrsi3_out): Likewise.

2000-05-04 Mark Elbrecht <snowball3@bigfoot.com>

	* gcc.c (free_split_directories): Correct typo in explanation
	of make_relative_prefix.

2000-05-04  Geoff Keating  <geoffk@cygnus.com>

	* config/rs6000/rs6000.h (PREDICATE_CODES): Add floating-point
	comparison codes to branch_comparison_operator.

2000-05-04  Richard Henderson  <rth@cygnus.com>

	* ifcvt.c (noce_process_if_block): Always reset X in the A == B case.

2000-05-04  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (FPBIT_FUNCS): Remove _df_to_usi.
	(DPBIT_FUNCS): Remove _sf_to_usi.
	(stmp-multilib): Pass LIB1ASMSRC to libgcc.mk.

	* ifcvt.c (noce_process_if_block): Fail if A or B modified
	between condition and jump.

	* libgcc2.c (near eh_context_specific): Comment #endif string.
	* longlong.h: Don't use strings with embedded newlines.

2000-05-04  Geoff Keating  <geoffk@cygnus.com>

	* config/rs6000/rs6000-protos.h: Add output_cbranch.
	* config/rs6000/rs6000.c (ccr_bit_negated_p): Delete.
	(print_operand): Delete %t and %T codes.
	(output_cbranch): New function.  Support branch prediction.
	* config/rs6000/rs6000.md: Use output_cbranch for
	conditional branches and returns.

2000-05-04  Jason Merrill  <jason@casey.cygnus.com>

	* simplify-rtx.c (simplify_ternary_operation): Cast to unsigned.
	* stor-layout.c (place_field): Likewise.
	* integrate.h (struct inline_remap): Make regno_pointer_align unsigned.
	* expr.c (store_expr): Make align unsigned.
	* explow.c (plus_constant_wide): Make low words unsigned.
	* expmed.c (choose_multiplier): Likewise.
	* fold-const.c (fold):  Likewise.
	* tree.h (build_int_2): Likewise.
	* tree.c (build_int_2_wide, tree_int_cst_msb): Likewise.
	* emit-rtl.c (gen_reg_rtx): Add cast to unsigned char*.
	(init_emit): Change cast to unsigned char*.
	* varasm.c (compare_constant_1): Add cast to char*.
	* gcse.c (delete_null_pointer_checks): Change cast to unsigned int*.
	* reload1.c (reload): Likewise.

	* rtl.h (MEM_SET_IN_STRUCT_P): Use do { } while (0).

Thu May  4 14:37:23 2000  Jeffrey A Law  (law@cygnus.com)

	* predict.c (estimate_probability): If no prediction was found, then
	predict the successor that is the next physical block (if such a
	successor exists).

2000-05-04  Richard Henderson  <rth@cygnus.com>

	* config/alpha/t-alpha (LIB2FUNCS_EXTRA): Use qrrnd.asm in place.

2000-05-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* system.h: Don't wrap <sys/types.h> with HAVE_SYS_TYPES_H.

2000-05-04  Mumit Khan  <khan@xraylith.wisc.edu>

	* i386/cygwin.h (CPP_PREDEFINES): Don't define __STDC__. Move 
	attribute macros from here ...
	(CPP_SPEC): to here.
	* i386/mingw32.h (CPP_PREDEFINES): Likewise.
	(CPP_SPEC): Likewise.
	* i386/crtdll.h (CPP_PREDEFINES): Delete attribute macros. 

	* Makefile.in ($(HOST_PREFIX_1)gensupport.o): Add build rule.
	(libgcc.a): Pass LIB1ASMSRC to libgcc.mk.

2000-05-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* bb-reorder.c (get_next_bb_note, get_prev_bb_note): Prototype.
	
	* diagnostic (vbuild_message_string, build_message_string,
	build_location_prefix, output_get_prefix, init_output_buffer,
	output_notice, vline_wrapper_message_with_location,
	v_message_with_decl, default_print_error_function): De-constify.
	(set_real_maximum_length): Prototype.

	* diagnostic.h (struct output_buffer, init_output_buffer,
	output_get_prefix, output_set_prefix): De-constify.

	* function.c (init_function_start): Constify.

	* gensupport.c (remove_constraints, process_rtx): Prototype.

	* gthr-posix.h: Indent uses of #pragma.

	* objc/objc-act.c (ggc_mark_imp_list, ggc_mark_hash_table):
	Prototype.

	* predict.c (find_expected_value): Delete prototype.
	(expected_value_to_br_prob): Initialize variable `ev_reg'.

	* sbitmap.h (debug_sbitmap): Prototype.

	* ssa.c (compute_coalesced_reg_partition): Prototype.

	* stor-layout.c (debug_rli): Prototype.

	* tree.h (round_down): Prototype.
	(init_function_start): Constify.

2000-05-04  Zack Weinberg  <zack@wolery.cumb.org>

	* cpphash.h: #define __extension__ away if GCC_VERSION < 2095
	(overly conservative).  Change extern inline wrappers to
	static inline, define them always, use PARAMS properly.
	* cpplex.c (_cpp_get_directive_token): Don't issue pedantic
	whitespace warnings for \f and \v at the beginning of a line.

Thu May  4 10:03:50 2000  Jeffrey A Law  (law@cygnus.com)

	* haifa-sched.c (schedule_insns): Free the flow edge list when it
	is no longer needed

2000-05-04  Bruce Korb  <bkorb@gnu.org>

	* fixincl/inclhack.def: added broken_cabs -
	Remove `extern double cabs' declarations from math.h
	* fixincl/inclhack.sh: regen
	* fixincl/fixincl.x: regen
	* fixincl/fixincl.c: Remove BOGOSITY code
	* fixincl/mkfixinc.sh: Remove code for installing "shell" version

Thu May  4 09:45:12 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* rtl.h (MEM_COPY_ATTRIBUTES): Also copy RTX_UNCHANGING_P and
	MEM_ALIAS_SET.
	* alias.c (canon_rtx): Don't copy RTX_UNCHANGING_P or MEM_ALIAS_SET
	when calling MEM_COPY_ATTRIBUTES.
	* emit-rtl.c (operand_subword, change_address): Likewise.
	* explow.c (stabilize): Likewise.
	* expr.c (protect_from_queue, emit_move_insn_1): Likewise.
	* integrate.c (copy_rtx_and_substitute): Likewise.
	* combine.c (combine_simplify_rtx): Don't copy RTX_UNCHANGING_P
	when calling MEM_COPY_ATTRIBUTES.
	(make_extraction, simplify_shift_const, gen_lowpart_for_combine):
	Likewise.
	* cse.c (gen_lowpart_if_possible): Likewise.
	* function.c (fixup_var_refs_1, purge_addressof_1): Likewise.
	* optabs.c (gen_move_insn): Likewise.
	* recog.c (validate_replace_rtx_1): Likewise.
	* simplify-rtx.c (add_mem_for_addr): Likewise.
	* stmt.c (expand_anon_union_decl): Likewise.
	* config/arm/arm.md: Likewise.
	* config/h8300/h7300.c (fix_bit_operand): Likewise.
	* config/m88k/m88k.c (legitimize_address, block_move_loop): Likewise.
	(block_move_no_loop, block_move_sequence): Likewise.
	* config/rs6000/rs6000.c (expand_block_move_mem): Likewise.
	* config/alpha/alpha.c (get_aligned_mem): Likewise.
	Clear MEM_ALIAS_SET.
	* final.c (alter_subreg): Don't copy MEM_ALIAS_SET when calling
	MEM_COPY_ATTRIBUTES.

2000-05-03  Robert Lipe <robertlipe@usa.net>
	
	* configure.in (i[34567]86-*-isc*) [tmake_file]: Add t-i386bare
	to suppress libgcc1.
	(i[34567]86-*-sco3.2v5*) Likewise.
	(i[34567]86-*-sco3.2v4*) Likewise.
	(i[34567]86-*-sco) Likewise.
	(i[34567]86-*-solaris2) Likewise.
	(i[34567]86-*-sysv5*) Likewise.
	(i[34567]86-*-sysv4*) Likewise.
	(i[34567]86-*-udk*) Likewise.
	(i[34567]86-*-sysv*) Likewise.

2000-05-03  Zack Weinberg  <zack@wolery.cumb.org>

	* cpphash.h (U): New define, to correct type of string constants.
	(ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr): New wrapper
	routines, to do casts when passing unsigned strings to libc.
	* cppexp.c, cppfiles.c, cpphash.c, cppinit.c, cpplib.c: Use them.

	* cppfiles.c (_cpp_execute_include): Make filename an U_CHAR *.
	* cpphash.c (_cpp_quote_string): Make string an U_CHAR *.
	* cppinit.c (dump_special_to_buffer): Make macro name an U_CHAR *.
	* cpplex.c (parse_ifdef, parse_include, validate_else): Make
	second argument an U_CHAR *.

	* cppinit.c (builtin_array): Make name and value U_CHAR *, add
	length field, clean up initializer.
	(ISTABLE): Add __extension__ to designated-
	initializers version.
	* cpplex.c (CHARTAB): Likewise.

	* mbchar.c: Add dummy external declaration to the !MULTIBYTE_CHARS
	case so the file won't be empty.

Wed May  3 21:01:46 2000  Jason Eckhardt  <jle@cygnus.com>

	* bb-reorder.c (struct reorder_block_def): Member succ removed.
	(REORDER_BLOCK_SUCC): Removed.
	(enum reorder_skip_type): Removed.
	(skip_insns_between_block): Renamed to skip_insns_after_block.
	Removed second argument. Removed dead code and cleaned up.
	(make_reorder_chain): Removed use of REORDER_BLOCK_SUCC.
	(reorder_basic_blocks): Remove use of REORDER_SKIP_AFTER. Removed
	second parameter to skip_insns_after_block.

Wed May  3 13:29:54 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* tree.c (staticp, case LABEL_DECL): New case.

2000-05-03  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (start.encap): Do not depend on LIBGCC1.

	* mklibgcc1.in: Fix typo last change.

2000-05-03  Jason Merrill  <jason@casey.cygnus.com>

	* Makefile.in (WARN_CFLAGS): Add -pedantic -Wno-long-long.
	(LOOSE_CFLAGS): New: CFLAGS without -pedantic and -Wtraditional.
	(GCC_CFLAGS): Use it.
	(LANG_FLAGS_TO_PASS): New: SUBDIR_FLAGS_TO_PASS with LOOSE_CFLAGS.
	* cp/Make-lang.in, java/Make-lang.in, f/Make-lang.in, ch/Make-lang.in,
	objc/Make-lang.in: Use it.

2000-05-03  Jason R Thorpe  <thorpej@zembu.com>

	* config/i386/i386.md (lshrqi2_cmpno): Use q not r in constraint.

2000-05-03  Richard Henderson  <rth@cygnus.com>

	* mklibgcc.in: Restrict OLDCC=GCC test to native.  Equate
	LIBGCC1 empty with libgcc1.null.

Wed May  3 12:55:46 2000  Jim Wilson  <wilson@cygnus.com>

	* fold-const.c (extract_muldiv, case MAX_EXPR): Don't allow signedness
	change.

2000-05-03  Greg McGary  <gkm@gnu.org>

	* tree.h (tree_common): Add bounded_flag member.  Remove
	inaccurate comment about number of remaining bits.
	(BOUNDED_INDIRECT_TYPE_P, BOUNDED_POINTER_TYPE_P,
	BOUNDED_REFERENCE_TYPE_P, MAYBE_BOUNDED_INDIRECT_TYPE_P,
	MAYBE_BOUNDED_POINTER_TYPE_P, MAYBE_BOUNDED_REFERENCE_TYPE_P,
	TREE_BOUNDED, TYPE_MAIN_VARIANTS_PHYSICALLY_EQUAL_P,
	TYPE_MAIN_PHYSICAL_VARIANT, TYPE_BOUNDED): New macros.
	(TYPE_QUAL_BOUNDED): New constant.
	(TYPE_QUALS): Handle bounded qualifier.
	(TREE_EXPR_QUALS, TREE_FUNC_QUALS): New macros.
	(TYPE_BOUNDED_VALUE, TYPE_BOUNDED_BASE, TYPE_BOUNDED_EXTENT,
	TYPE_BOUNDED_SUBTYPE, TYPE_UNBOUNDED_VARIANT, TYPE_POINTER_DEPTH,
	TYPE_AMBIENT_BOUNDEDNESS): New macros.
	(MAX_POINTER_DEPTH, VA_LIST_POINTER_DEPTH): New constants.
	(tree_type): Add pointer_depth member.  Remove
	inaccurate comment about number of remaining bits.
	(DECL_POINTER_DEPTH): Add macro.
	(tree_decl): Add pointer_depth member.

Wed May  3 22:52:53 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr-protos.h (test_hard_reg_class): Declared.
	* config/avr/avr.c (ashrhi3_out): optimized shift by 15.
	(lshrhi3_out): Likewise.
	(ashrsi3_out): bugfix in shift by 8.
	(test_hard_reg_class): New function.
	* config/avr/avr.md: Bugfix inside conditions in peepholes.
	(ashlhi3): removed define_expand of this pattern.
	(*ashlhi3_insn): renamed to ashlhi3.
	(ashlsi3): removed define_expand of this pattern.
	(*ashlsi3_insn): renamed to ashlsi3.
	(ashrqi3): removed define_expand of this pattern.
	(*ashrqi3_insn): renamed to ashrqi3.
	(ashrhi3): removed define_expand of this pattern.
	(*ashrhi3_insn): renamed to ashrhi3.
	(ashrsi3): removed define_expand of this pattern.
	(*ashrsi3_insn): renamed to ashrsi3.
	(lshrhi3): removed define_expand of this pattern.
	(*lshrhi3_insn): renamed to lshrhi3.
	(lshrsi3): removed define_expand of this pattern.
	(*lshrsi3_insn): renamed to lshrsi3.

2000-05-03  Rodney Brown  <RodneyBrown@pmsc.com>

	* config/mcore/mcore.c: Replacing inclusion of "stdio,h" with
	inclusion of "system.h".

Wed May  3 11:43:53 2000  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64.c (ia64_encode_section_info): Add check for
	TREE_ASM_WRITTEN.

2000-05-03  David Mosberger  <davidm@hpl.hp.com>

	* config/ia64/ia64.c (ia64_override_options): Force -mconstant-gp
	if -mauto-pic is on.
	(ia64_epilogue_uses): Mark "gp" (r1) as used by the epilogue if
	-mconstant-gp is in effect and function-descriptors are being used
	to make indirect calls.
	* config/ia64/ia64.h (MASK_CONST_GP): New macro.
	(MASK_AUTO_PIC): Ditto.
	(TARGET_CONST_GP): Ditto.
	(TARGET_AUTO_PIC): Ditto.
	(TARGET_SWITCHES): Add -mconstant-gp and -mauto-pic options.
	(ASM_OUTPUT_DOUBLE_INT): Don't generate @fptr() if -mauto-pic or
	-mno-pic is in effect.
	(ASM_OUTPUT_XDATA_DOUBLE_INT): Ditto.
	* config/ia64/ia64.md (movdi): Use gen_load_gprel64() if
	-mauto-pic is in effect.
	(gprel64_offset): New pattern.
	(load_gprel64): Ditto.
	(call): Handle -mauto-pic like -mno-pic (don't use fptr).  If
	-mconstant-gp is in effect, no need to preserve gp around direct
	calls.
	(call_value): Ditto.
	* config/ia64/linux.h (PROFILE_BEFORE_PROLOGUE): Define.
	(FUNCTION_PROFILER): Define.
	* config/ia64/sysv4.h (ASM_OUTPUT_CONSTRUCTOR): Don't generate
	@fptr() directive when -mno-pic or -mauto-pic is in effect.
	(ASM_OUTPUT_DESTRUCTOR): Ditto.

2000-05-03  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (STAGESTUFF): Add libgcc libgcc.mk.
	(libgcc1.null, libgcc1.cross, libgcc1.a): Remove targets.
	(libgcc1-asm.a, libgcc1.S, libgcc2.a): Remove targets.
	(mklibgcc, libgcc.mk): New targets.
	(libgcc.a): Use libgcc.mk.
	(stmp-multilib): Likewise.
	(stmp-multilib-sub): Remove.
	(mostlyclean): Don't delete libgcc2 temp files.
	* configure.in (AC_PROG_CC_C_O): Add.
	(NO_MINUS_C_MINUS_O): Substitute it.
	(all_outputs): Add mklibgcc.
	* mklibgcc.in: New file.

2000-05-03  Jason Merrill  <jason@casey.cygnus.com>

	* cppexp.c (op_t): Make an int.

	* rtlanal.c (dead_or_set_regno_p): Remove unused variable.

	* varasm.c (initializer_constant_valid_p): Fix parenthesis.

	* gensupport.c (process_rtx): Fix macros used.

2000-05-03  Richard Henderson  <rth@cygnus.com>

	* flow.c (propagate_one_insn): Also don't PROP_REG_INFO for
	call-clobbered registers of a call.

Wed May  3 12:40:53 2000  Clinton Popetz  <cpopetz@cygnus.com>

	* gensupport.c: New file.
	* gensupport.h: New file.
	* Makefile.in (HOST_RTL): Depend on gensupport.
	(gensupport.o) New rule.
	* genattr.c: Use gensupport for reading .md files.
	* genattrtab.c: Ditto. 
	* gencodes.c: Ditto. 
	* genconfig.c: Ditto. 
	* genemit.c: Ditto. 
	* genextract.c: Ditto. 
	* genflags.c: Ditto. 
	* genopinit.c: Ditto. 
	* genoutput.c: Ditto. 
	* genpeep.c: Ditto. 
	* genrecog.c: Ditto.
	* rtl.def (define_insn_and_split): New DEF_RTL_EXPR.
	* md.texi (Insn Splitting): Document define_insn_and_split.

Tue May  2 00:20:30 2000  Jason Eckhardt  <jle@cygnus.com>

	* flow.c (verify_flow_info): Added two more sanity checks. The
	first checks that the blocks are numbered consecutively. The second
	checks that n_basic_blocks is actually equal to the number of
	basic blocks in the insn chain.

2000-05-03  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.h: Add accessor macros for token lists.
	* cpplib.c, cpphash.c, cpplex.c: Use them.

Wed May  3 09:29:17 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* expr.c (expand_expr, case COMPONENT_REF): Don't check for checking
	memory usage if not in a function.
	* varasm.c (initializer_constant_valid_p, case ADDR_EXPR): Only
	return address if static.

Wed May  3 13:14:49 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* ifcvt.c (noce_try_cmove_arith):  Use may_trap_p to thest
	whether address may trap.

Tue May  2 23:38:37 2000  Jason Eckhardt  <jle@cygnus.com>

	* bb-reorder (chain_reorder_blocks): Changed code to test for
	EDGE_FALLTHRU rather than making erroneous assumption that the
	first outgoing edge is the fall-through edge.

Tue May  2 18:20:31 2000  Donald Lindsay  <dlindsay@hound.cygnus.com>

	* config/mips/mips.c (mips_build_va_list,mips_va_start,mips_va_arg): new 
	ABI for varargs, across all MIPS. This is incompatible because the
	va_list (__builtin_va_list) structure is different, so a compilation
	unit passing a va_list and a compilation unit being passed one, should
	both be compiled with the same ABI. (The old structure had two 
	pointers, now it has three.)

Tue May  2 19:18:43 2000  Jason Eckhardt  <jle@cygnus.com>

	* bb-reorder.c (struct reorder_block_def): Remove members end,
	block_begin, and block_end.
	(REORDER_BLOCK_OLD_END): Delete.
	(REORDER_BLOCK_BEGIN): Delete.
	(REORDER_BLOCK_END): Delete.
	(chain_reorder_blocks): Remove dead code.

Tue May  2 17:06:53 2000  Jason Eckhardt  <jle@cygnus.com>

	* bb-reorder.c (remove_scope_notes): Check for both types of scope
	notes as the end of a basic block before deleting.

2000-05-02  Mumit Khan  <khan@xraylith.wisc.edu>

	* final.c (final_start_function): Fix spelling of "necessary".

2000-05-02  Jason Merrill  <jason@casey.cygnus.com>

	* toplev.c (debug_ignore_block): Return int.
	* dwarf2out.c (dwarf2out_ignore_block): Likewise.
	* toplev.h, dwarf2out.h: Adjust.
	* emit-rtl.c (remove_unnecessary_notes): Test return value.

	* emit-rtl.c (remove_unnecessary_notes): Fix spelling of "necessary".
	* toplev.c, final.c, rtl.h: Adjust.

2000-05-02  Zack Weinberg  <zack@wolery.cumb.org>

	* aclocal.m4 (gcc_AC_CHECK_PROG_VER): New macro.
	* configure.in: Look for makeinfo in the unified tree, then
	for a system makeinfo which is sufficiently new.
	* Makefile.in: If configure says makeinfo is too old, don't
	build or install Info documentation.

2000-05-02  Zack Weinberg  <zack@wolery.cumb.org>

	* cpphash.c (collect_params): Fix off-by-one error.
	(dump_hash_helper): Dump all four macro nodetypes.

2000-05-02  Jakub Jelinek  <jakub@redhat.com>

	* cpphash.c (trad_stringify): Adjust p after stringification as
	well.

2000-05-02  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.h (CPP_POP, parse_cleanup_t): Delete.
	(cpp_buffer): Remove cleanup, seen_eof, manual_pop members.

	* cppfiles.c (file_cleanup): Delete.
	* cpphash.c (macro_cleanup): Delete.
	(collect_objlike_expansion, collect_funlike_expansion,
	macarg, scan_arguments): Remove CPP_POP case.

	* cpplex.c (null_cleanup): Delete.
	(cpp_pop_buffer): Do the work that was done in the cleanups
	here.  Call _cpp_unwind_if_stack from here.
	(_cpp_expand_to_buffer, cpp_scan_buffer_nooutput,
	cpp_scan_buffer): Run until we see CPP_EOF and the top of
	stack is the buffer _below_ the one we stacked.
	(cpp_get_token): Always pop an exhausted buffer.  Return
	CPP_EOF unless it's a macro buffer.  Don't call _cpp_handle_eof.
	* cpplib.c (skip_if_group): Don't call cpp_get_token to
	increment the line number.
	(_cpp_handle_eof): Rename to _cpp_unwind_if_stack.

	* fix-header.c (read_scan_file) [parsing getchar()]: Run until
	we see CPP_EOF and the top of stack is the buffer _below_ the
	one we stacked.
	* scan-decls.c: Likewise.

2000-05-02  Andrew Haley  <aph@cygnus.com>

	* config/ia64/ia64.c (ia64_encode_section_info): Handle the case
	where this function is called for the second time on a decl that
	has had its section info changed in such a way as to move it out
	of small data/bss.  
	* config/ia64/ia64.h (REDO_SECTION_INFO_P): New definition.

2000-05-01  Richard Henderson  <rth@cygnus.com>

	* ifcvt.c (dead_or_predicable): Set merge_bb->end to the insn before
	the sequence we're moving, not to merge_bb->head.

2000-05-01  Richard Henderson  <rth@cygnus.com>

	* configure.in (alpha*-*-linux-gnulibc1*) [tmake_file]: Remove
	reference to alpha/t-linux.
	(alpha*-*-linux-gnu*): Likewise.
	* configure: Rebuild.

	* calls.c (expand_call): Don't emit reg notes for a sibcall.

	* flow.c (calculate_global_regs_live): Skip for_each_successor_phi
	if not in SSA form.

	* ifcvt.c (if_convert): Only verify_flow_info if ENABLE_CHECKING.

2000-05-01  Jason Merrill  <jason@casey.cygnus.com>

	* integrate.c (copy_decl_for_inlining): Copy TREE_READONLY and
	TREE_THIS_VOLATILE.

2000-05-01  Richard Henderson  <rth@cygnus.com>

	* ifcvt.c (noce_emit_cmove): Conditionally compile call to
	emit_conditional_move.

2000-05-01  Jakub Jelinek  <jakub@redhat.com>

	* config/ia64/linux.h (LINK_SPEC): Use /lib/ld-linux-ia64.so.1
	as the dynamic linker.

2000-05-01  Zack Weinberg  <zack@wolery.cumb.org>

	* cppfiles.c (open_include_file): Open file in blocking mode.
	(read_include_file): Don't fcntl(fd, F_SETFL, 0) anymore.
	Only exclude block devices and directories.

	* cpphash.c (_cpp_make_hashnode): Rename make_HASHNODE, now
	static.  Allocate the hashnode and its string in the same
	block of memory.
	(del_HASHNODE): Don't free h->name.
	(_cpp_lookup): If there is no entry for this string, create
	one, of type T_VOID.
	(_cpp_lookup_slot): Delete.
	* cpphash.h: Update prototypes.

	* cpplex.c (maybe_macroexpand): Check for hp->type == T_VOID,
	not hp == NULL.
	* cpplib.c (do_define, do_undef, do_pragma_poison, do_assert,
	do_unassert, cpp_defined): Use _cpp_lookup.  Don't create a
	node here, just fill in the value field properly.  "Delete"
	entries by setting the value field to T_VOID.  Check for
	hp->type == T_VOID, not hp == NULL.

	* Makefile.in (cpplib.o): Don't depend on $(HASHTAB_H).
	* cpperror.c, cppexp.c, cpplex.c, cpplib.c:  Don't include
	hashtab.h.

2000-05-01  Alexandre Oliva  <aoliva@cygnus.com>

	* config/mn10300/mn10300.c (print_operand_address): Do not add
	zero to SP.

	* config/mn10300/mn10300.c (expand_epilogue): If SP is to be
	adjusted by less than 256 bytes, use ret regardless of having any
	callee-saved register to restore.

2000-05-01 Laurynas Biveinis <lauras@softhome.net>

	* tm.texi (TARGET_HAS_F_SETFLKW): Fix typo.

2000-05-01 Mark Elbrecht <snowball3@bigfoot.com>

	* config/i386/djgpp.h (INT_ASM_OP): Define.
	(CPP_PREDEFINES): Rename MSDOS to __MSDOS__.
	(ASM_WEAKEN_LABEL): Define.
	(MASK_BNU210): Define.
	(SUBTARGET_SWITCHES): Define.
	(SUPPORTS_WEAK, SUPPORTS_ONE_ONLY): Define.
	(MAKE_DECL_ONE_ONLY): Define.
	(UNIQUE_SECTION_P, UNIQUE_SECTION): Define.

2000-05-01  Mumit Khan  <khan@xraylith.wisc.edu>

	* i386/cygwin.h (INT_ASM_OP): Define.

Mon May  1 18:20:06 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.c (address_cost): renamed to avr_address_cost.
	* config/avr/avr.h (ADDRESS_COST): use avr_address_cost.

Mon May  1 17:50:44 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.c (asm_file_start): output 0 as r0 and 1 as r1 in
	__tmp_reg__ and __zero_reg__ initialization.

2000-04-30  Richard Henderson  <rth@cygnus.com>

	* flow.c (propagate_one_insn): Mark sets even when the insn is dead.

	* ifcvt.c (noce_process_if_block): Fail the conversion if X is
	referenced bewteen the condition and the jump.  Don't delete
	anything but the jump.

Sun Apr 30 22:48:24 2000  Jason Eckhardt  <jle@cygnus.com>

	* bb-reorder.c (scope_def): New struct.
	(scope_forest_info): New struct.
	(struct reorder_block_def): New member "scope".
	(REORDER_BLOCK_SCOPE): New macro.
	(relate_bbs_with_scopes): New function and prototype.
	(make_new_scope): Likewise.
	(build_scope_forest): Likewise.
	(remove_scope_notes): Likewise.
	(insert_intra_1): Likewise.
	(insert_intra_bb_scope_notes): Likewise.
	(insert_inter_bb_scope_notes): Likewise.
	(rebuild_scope_notes): Likewise.
	(free_scope_forest_1): Likewise.
	(free_scope_forest): Likewise.
	(dump_scope_forest): Likewise.
	(dump_scope_forest_1): Likewise.
	(chain_reorder_blocks): Set REORDER_BLOCK_SCOPE for new block.
	Update REORDER_BLOCK_EFF_HEAD and REORDER_BLOCK_EFF_END for new
	block.
	(reorder_basic_blocks): Added calls to build_scope_scope_forest
	and remove_scope_notes before reordering is done. Added calls to
	rebuild_scope_notes, free_scope_forest, and reorder_blocks after
	after reordering is done.

2000-40-30  Bruce Korb  <bkorb@gnu.org>

	* fixinc/inclhack.def:  Added definitions needed by OSR5,
	removed two stale entries (defined away with OLD_CPP).
	* fixinc/inclhack.sh: regen
	* fixinc/fixincl.x: regen

2000-04-30  Richard Henderson  <rth@cygnus.com>

	* ifcvt.c (dead_or_predicable): Manually squeeze non-movable notes
	from the last insn in the sequence.

2000-04-30  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplex.c (cpp_idcmp): New function.
	* cpplib.h: Prototype it.
	* scan_decls.c (scan_decls): Use it to inspect token names.
	* fix-header.c (read_scan_file): Likewise.  Set system_header_p on
	the file being run through the preprocessor.
	(check_macro_names): Provide length of token to cpp_defined.

	* Makefile.in: Remove stale warning message.

	* cppfiles.c (redundant_include_p): Provide length of token to
	cpp_defined.
	* cpphash.c (_cpp_make_hashnode, _cpp_lookup_slot): Hash
	values are unsigned int.
	(_cpp_lookup, _cpp_lookup_slot): Do not calculate the length.
	(_cpp_lookup_slot): Do not calculate the hash, either.
	* cpphash.h: Update prototypes.
	* cpplib.c (do_define, do_undef, do_pragma_poison, do_assert):
	Hashes are unsigned int.  Calculate hash here, pass by value
	to _cpp_lookup_slot.

2000-04-30  Bernd Schmidt  <bernds@cygnus.co.uk>

	* simplify-rtx.c (check_value_useless): Delete function.
	(discard_useless_locs): Don't call it; manage N_USELES_VALUES counter
	by hand.
	(cselib_invalidate_regno): Likewise.
	(cselib_invalidate_mem_1): Likewise.
	(references_value_p): Recognize useless values by the fact that they
	have no locations.
	(discard_useless_values): Likewise.
	(cselib_record_set): This may turn a useless value
	into a useful one.

2000-04-30  Richard Henderson  <rth@cygnus.com>

	* config/d30v: New port.

	* configure.in (d30v-*): Set fp format.
	* configure: Rebuild.

2000-04-30  Richard Henderson  <rth@cygnus.com>

	* ifcvt.c: New file.
	* Makefile.in (OBJS): Add it.
	(ifcvt.o): New target.
	* jump.c (jump_optimize_1): Remove all code related to if-conversion,
	and conditional arithmetic.
	(find_insert_position): Remove.
	* timevar.def (TV_IFCVT, TV_IFCVT2): New.
	* toplev.c (DFI_ce, DFI_ce2): New.
	(dump_file): Add ce and ce2 dumps.
	(rest_of_compilation): Run if_convert a couple o times.  Set
	cse_not_expected after cse2.  Don't set no_new_pseudos until
	after sched1 or recompute_reg_usage.

2000-04-30  Richard Henderson  <rth@cygnus.com>

	* config/alpha/t-crtbe (crtbegin.o): Add "-I.".
	(crtend.o, crtbeginS.o, crtendS.o): Likewise.

2000-04-30  Richard Henderson  <rth@cygnus.com>

	* flow.c (struct reg_cond_life_info): New.
	(struct propagate_block_info): Add reg_cond_dead and reg_cond_reg.
	(init_propagate_block_info): Initialize them.
	(free_propagate_block_info): Destruct them.
	(mark_set_1): Consider conditional life before killing a register.
	(mark_regno_cond_dead): New.
	(free_reg_cond_life_info): New.
	(flush_reg_cond_reg_1, flush_reg_cond_reg): New.
	(ior_reg_cond, not_reg_cond, nand_reg_cond): New.
	(mark_used_reg): Record conditional life.

	* haifa-sched.c (schedule_insns): Disable death counting
	sanity check for HAVE_conditional_execution.

2000-04-30  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (TIMEVAR_H): New.
	(ggc-simple.o, ggc-page.o, toplev.o, timevar.o): Use it.
	(timevar.h): Remove rule.

2000-04-29  Richard Henderson  <rth@cygnus.com>

	* config/alpha/crtend.asm: Use C comments instead of #.
	* config/alpha/crtbegin.asm: Likewise.  Mark __dso_handle hidden.

	* config/alpha/elf.h (SELECT_SECTION): Treat CONSTRUCTOR like VAR_DECL.

2000-04-29  Zack Weinberg  <zack@wolery.cumb.org>

	* cpphash.h (enum node_type: Take out T_MCONST.
	(union hashval): Move into struct hashnode.
	(struct hashnode): Pack tighter.  Remove file, line, col
	members.
	* cpphash.c: Constify most of the macro-definition structures.
	(struct definition): Replace by struct object_defn
	and struct funct_defn.  Put file, line, column information
	here.  All users updated to match.
	(_cpp_create_definition, _cpp_macroexpand): Remove special
	case for #define WORD OTHERWORD.
	* cpplib.c (do_undef): Remove T_MCONST case.

	* cpphash.h: Move struct reflist, struct definition, and the
	DEFINITION typedef to cpphash.c.  Use 'struct definition *' in
	union hashval.  _cpp_free_definition takes a HASHNODE pointer.
	* cpphash.c (_cpp_free_definition): Free data pointed to by
	MCONST, XCONST, MACRO, and FMACRO nodes properly.
	(_cpp_create_definition, del_HASHNODE): Just call
	_cpp_free_definition to clear out a hashnode.
	* cpplib.c (do_pragma_poison): Likewise.

Sat Apr 29 12:25:17 2000  Alexandre Oliva  <aoliva@cygnus.com>

	* config/mn10300/mn10300.h (FIRST_DATA_REGNUM,
	LAST_DATA_REGNUM, FIRST_ADDRESS_REGNUM, LAST_ADDRESS_REGNUM,
	FIRST_EXTENDED_REGNUM, LAST_EXTENDED_REGNUM): New macros.
	(REGNO_SP_P): Redefine in terms of STACK_POINTER_REGNUM.
	(REGNO_DATA_P, REGNO_ADDRESS_P, REGNO_EXTENDED_P,
	REGNO_AM33_P): Redefine in terms of the new macros.
	(CONDITIONAL_REGISTER_USAGE, REGNO_REG_CLASS): Likewise.
	(FUNCTION_VALUE, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
	STRUCT_VALUE): Likewise.
	(STACK_POINTER_REGNUM, FRAME_POINTER_REGNUM,
	ARG_POINTER_REGNUM, STATIC_CHAIN_REGNUM): Likewise.  Moved.

Sat Apr 29 01:18:45 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* regmove.c (struct record_stack_memrefs_data): New.
	(record_stack_memrefs): New function.
	(combine_stack_adjustments_for_block): Use it.

Sat Apr 29 01:15:27 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* calls.c (calls_function_1):  Propertly handle TREE_LIST expressions;
	use special_function_p to detect alloca.

Fri Apr 28 16:30:33 2000  Marc Espie <espie@cvs.openbsd.org>

	* gcc.texi: Fixes for makeinfo 4.0 --html.

2000-04-28  Zack Weinberg  <zack@wolery.cumb.org>

	* pcp.h: Delete file.

2000-04-28  Kazu Hirata  <kazu@hxi.com>

	* h8300.c (function_epilogue): Clean up flags when the last insn
	in a function is a barrier.

2000-04-28  Chris Demetriou  <cgd@sibyte.com>

	* configure.in (sparc-hal-solaris2*): protect [] glob from
	my expansion.
	(mips*-*-ecoff*, mips*-*-elf*, mips*-*-*): use MASK_ defines
	rather than hard-coded constants in target_cpu_default2.
	* configure: Regenerate.

2000-04-28  Jason Merrill  <jason@casey.cygnus.com>

	* tree.c (get_callee_fndecl): Extract the initial value from
	a readonly decl.

2000-04-28  Richard Henderson  <rth@cygnus.com>

	* varasm.c (record_constant_1): Record the CODE_LABEL when
	taking the address of a LABEL_REF.

2000-04-28  Richard Henderson  <rth@cygnus.com>
	    Jan Hubicka  <jh@suse.cz>

	* calls.c (combine_pending_stack_adjustment_and_call): Return the
	adjustment; don't do the stack adjust.
	(expand_call): Call compute_argument_block_size right before
	allocating the block; update comment; don't do alignment sanity
	checking for sibling call; use args_size instead of
	unadjusted_args_size before args_size is adjusted.  Use
	combine_pending_stack_adjustment_and_call to compute stack adjust
	for must_preallocate case.

	* expr.c (push_block): Remove shadow `temp' in inner scope.

2000-04-28  Jason Merrill  <jason@casey.cygnus.com>

	* toplev.c (rest_of_compilation): Call
	note_deferral_of_defined_inline_function even if the function
	can't be inlined.

2000-04-28  Scott Bambrough  <scottb@netwinder.org>

	* cpplex.c (_cpp_scan_line): Fix buffer overwrite.

2000-04-28  Richard Henderson  <rth@cygnus.com>

	* toplev.c (rest_of_type_compilation): Fix sdb TIMEVAR typo.

2000-04-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* timevar.c (init_timevar): DeANSIfy function definition.

2000-04-27  Alex Samuel  <samuel@codesourcery.com>

	* Makefile.in (timevar.o): Depend on flags.h.
	* timevar.c (unused_stack_instances): New variable.
	(timevar_push): Take a timevar_stack_def from
	unused_stack_instances if available.
	(timevar_pop): Push the popped timevar_stack_def onto
	unused_stack_instances.
	(TIMEVAR_ENABLE): New macro.
	(timevar_def): Make standalone a 1-bit field.  Add field used.
	(get_time): Rename parameter to now.  Return after clearing it if
	not TIMEVAR_ENABLE.
	(init_timevar): Do nothing if not TIMEVAR_ENABLE.
	(timevar_pop): Likewise.
	(timevar_stop): Likewise.
	(timevar_push): Likewise.  Mark the timing variable as used.
	(timevar_start): Likewise.
	(timevar_print): Do nothing if not TIMEVAR_ENABLE.  Don't print
	timevars that were never used.

2000-04-27  Mark Mitchell  <mark@codesourcery.com>

	* c-common.c (c_apply_type_quals_to_decl): REFERENCE_TYPES are
	always TREE_READONLY.

2000-04-27  Ulrich Drepper  <drepper@cygnus.com>

	* i386.h (FUNCTION_BLOCK_PROFILER_EXIT): Generate mem reference
 	for call instruction with mode QImode.

2000-04-27  Alex Samuel  <samuel@codesourcery.com>

	* Makefile.in (OBJS): Add timevar.o.
	(toplev.o): Depend on timevar.h.
	(ggc-simple.o): Likewise.
	(ggc-page.o): Likewise.
	(timevar.o): New rule.
	(timevar.h): New rule.

	* timevar.h: New file.
	* timevar.c: Likewise.
	* timevar.def: Likewise.

	* toplev.h (gc_time, parse_time, varconst_time): Remove.
	* toplev.c: Use timevar_push and timevar_pop instead of TIMEVAR
	throughout.
	(TIMEVAR): Remove macro.
	(gc_time, parse_time, varconst_time, integration_time, jump_time,
	cse_time, gcse_time, loop_time, cse2_time, branch_prob_time,
	flow_time, combine_time, regmove_time, sched_time,
	local_alloc_time, global_alloc_time, flow2_time, peephole2_time,
	sched2_time, dbr_sched_time, reorder_blocks_time,
	rename_registers_time, shorten_branch_time, stack_reg_time,
	to_ssa_time, from_ssa_time, final_time, symout_time, dump_time,
	all_time): Remove.
	(compile_file): Don't initialize time variables.  Call
	init_timevar and start TV_TOTAL timer.  Call timevar_print instead
	of many calls to print_time.
	(rest_of_compilation): Add timing for reload_cse_regs.
	(get_run_time): Removed to timevar.c.
	(print_time): Likewise.
	(get_run_time): Implement using TV_TOTAL time variable.
	(print_time): Get total run time from get_run_time.
	* ggc-page.c (ggc_collect): Push and pop TV_GC instead of
	computing elapsed time explicitly.
	* ggc-simple.c (ggc_collect): Likewise.
	(gc_time): Remove declaration.

2000-04-27  Mark Mitchell  <mark@codesourcery.com>

	* calls.c (combine_pending_stack_adjustment_and_call): New function.
	(expand_call): Use it.

2000-04-27  Jan Hubicka  <jh@suse.cz>

	* flow.c (mark_set_1):  Handle MEMs in ZERO_EXTRACT/SIGN_EXTRACT
	fields.

Thu Apr 27 12:47:00 2000  Alexandre Oliva  <aoliva@cygnus.com>

	* config/mn10300/mn10300.md (movhi): Simplify.  Prefer data
	registers.

Thu Apr 27 17:33:05 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* function.c (epilogue_done): Pass whole insn to record_insns.

Thu Apr 27 16:55:28 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* cse.c (CSE_ADDRESS_COST): Remove.
	(find_best_addr): Add new parameter "MODE", use address_cost instead
	of CSE_ADDRESS_COST
	(address_cost): New.
	(fold_rtx): Update call of find_best_addr.
	* rtl.h (address_cost): Declare.
	* loop.c (general_induction_var): Add new parameter "MODE", use
	address_cost instead of ADDRESS_COST
	(init_loop): Use address_cost instead of ADDRESS_COST.
	(check_insn_for_givs): Update call of general_induction_var.
	(find_mem_givs): Likewise.
	(consec_sets_giv): Likewise.
	* config/i386/i386.h (ADDRESS_COST): Call ix86_address_cost.
	* i386.c (ix86_address_cost): New.
	* i386-protos.h (ix86_address_cost): Declare.

Thu Apr 27 11:45:16 2000  Alexandre Oliva  <aoliva@cygnus.com>

	* config/mn10300/mn10300.md (movqi): Simplify.  Prefer data
	registers.

Thu Apr 27 16:11:00 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* expr.c (store_expr): Use clear_storage instead of direct memset
	libcall.

Thu Apr 27 10:36:51 2000  Alexandre Oliva  <aoliva@cygnus.com>

	* config/mn10300/mn10300.c (mn10300_address_cost): Test
	ASHIFT, AND and LABEL_REF.

Thu Apr 27 15:08:46 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* invoke.texi (-foptimize-sibling-calls): Fix.

Thu Apr 27 14:54:22 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* loop.c (load_mems)  Don't use hard registers for the hoisting.

	* unroll.c (unroll_loop): Avoid overflow in the n_iterations
	calculation; rename const_equiv array in the preconditioning code
	from loop_unroll to loop_unroll_precondition

2000-04-27  Richard Henderson  <rth@cygnus.com>

	* flow.c (struct propagate_block_info): Remove new_dead, new_live;
	add new_set.
	(propagate_one_insn): Clear it.  Don't update reg_live here.
	(init_propagate_block_info): Update for pbi member changes.
	(free_propagate_block_info): Likewise.
	(mark_set_1): Know that zero_extract, sign_extract, and
	strict_low_part don't kill their argument.  Alter hard subregs.
	Update new_set for non-CLOBBER sets.  Update reg_live.
	(find_auto_inc): Update reg_live, not new_dead.
	(mark_used_reg): Update reg_live, not new_live.  Examine new_set
	to determine if the reg in question was set this insn.  Only update
	reg info with PROP_REG_INFO.

2000-04-26  Richard Henderson  <rth@cygnus.com>

	* flow.c (allocate_reg_life_data): Set max_regno here ...
	(life_analysis): ... not here.

	* flow.c (calculate_global_regs_live): Force stack pointer
	live at end.

2000-04-26  Richard Henderson  <rth@cygnus.com>

	* jump.c (redirect_exp_1): Rework from old redirect_exp.  Never
	commit change group changes.
	(invert_exp_1): Similarly.
	(redirect_exp, invert_exp): Use them.
	(redirect_jump_1): New.
	(invert_jump_1): New.
	(jump_optimize_1): Remove code subsumed by condexec.c.
	* rtl.h (invert_jump_1, redirect_jump_1): Declare.

2000-04-26  Richard Henderson  <rth@cygnus.com>

	* rtlanal.c (dead_or_set_regno_p): Use find_regno_note.

	* genconfig.c (main): Set all HAVE_foo to 1.

	* graph.c (node_data): Use GET_NOTE_INSN_NAME instead of local array.

2000-04-26  Alex Samuel  <samuel@codesourcery.com>

	* invoke.texi: Document -fssa flag.

2000-04-26  Richard Henderson  <rth@cygnus.com>

	* flow.c (count_reg_sets_1): Remove.
	(count_reg_sets, count_reg_references): Remove.
	(recompute_reg_usage): Implement with update_life_info.
	Reallocate life data.

2000-04-26  Richard Henderson  <rth@cygnus.com>

	* flow.c (update_life_info): Consider blocks null to mean the
	universal set.
	(calculate_global_regs_live): Likewise.
	(life_analysis): Do that instead of collecting all_blocks.

2000-04-26  Richard Henderson  <rth@cygnus.com>

	* flow.c (tidy_fallthru_edge): Don't delete the jump when it's
	a still-valid conditional jump.

2000-04-26  Richard Henderson  <rth@cygnus.com>

	* jump.c (invert_jump): Always invert REG_BR_PROB.  Do it correctly.

	* bb-reorder.c (reorder_basic_blocks): Don't run estimate_probability.
	* flow.c (calculate_loop_depth): Remove.
	* output.h (calculate_loop_depth): Don't declare.
	* toplev.c (rest_of_compilation): Expand calculate_loop_depth
	inline; run estimate_probability at the same time.

2000-04-26  Neil Booth  <NeilB@earthling.net>

	* cpplib.h: "~=" is not a single pp-token.
	* cpplex.c: Correct commentary.

2000-04-26  Richard Henderson  <rth@cygnus.com>

	* flow.c (mark_set_1): New arguments code and flags; update all
	callers.  Track regno_first and regno_last; do HARD_REGNO_NREGS
	test in one place.  Tidy flags tests.  Don't bias REG_N_REFS by
	loop_depth when optimizing for size.  Do new_dead update after
	emitting REG_UNUSED notes.  Merge mark_set_reg code.
	(mark_set_reg): Remove.
	(propagate_one_insn): Use mark_set_1 for call-clobbered registers;
	arrange to not emit REG_UNUSED notes.

2000-04-26  Richard Henderson  <rth@cygnus.com>

	* flow.c (find_auto_inc): Use pbi->bb instead of BLOCK_FOR_INSN.
	* ssa.c (convert_from_ssa): Don't run compute_bb_for_insn.

2000-04-26  Richard Henderson  <rth@cygnus.com>

	* flow.c (propagate_one_insn): Break out from propagate_block.
	(init_propagate_block_info): Likewise.
	(free_propagate_block_info): Likewise.
	(propagate_block): Use them.  Export.
	* basic-block.h: Declare them all.

2000-04-26  Richard Henderson  <rth@cygnus.com>

	* basic-block.h (life_analysis): Declare here ...
	* output.h: ... not here.
	* flow.c (life_analysis): Remove nregs parameter; replace
	remove_dead_code with flags.  Remove ssa dead code check.
	Only init alias analysis if we'll use it.
	* reg-stack.c (reg_to_stack): Update life_analysis arguments.
	* ssa.c (convert_to_ssa): Likewise.
	(convert_from_ssa): Likewise.
	* toplev.c (rest_of_compilation): Likewise.

2000-04-26  Richard Henderson  <rth@cygnus.com>

	* flow.c (flow_delete_block): Rename from delete_block.  Export.
	* basic-block.h (flow_delete_block): Declare.

2000-04-26  David S. Miller  <davem@redhat.com>

	* optabs.c (emit_libcall_block): Verify insns with INSN_P before
	taking a PATTERN of it.

2000-04-26  <NeilB@earthling.net>

	* cpplex.c (spell_other, spell_char): Remove.
	(SPELL_CHAR): New.
	(token_spelling, trigraph_map): Use unsigned chars.
	(_cpp_lex_line): Tidy up the switch statement.
	* cpplib.h: Implement spell_char with spell_string.
	(C): New.

2000-04-26  <RodneyBrown@pmsc.com>

	* pa/pa32-regs.h (HARD_REGNO_MODE_OK): Warning removal.
	* pa/pa64-regs.h (HARD_REGNO_MODE_OK): Warning removal.

2000-04-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* dwarf2out.c (dw_cfi_oprnd_struct, dw_fde_struct, add_fde_cfi,
	reg_save, dwarf2out_frame_debug_expr, dwarf2out_def_cfa,
	dwarf2out_window_save, dwarf2out_args_size, dwarf2out_reg_save,
	dwarf2out_return_save, dwarf2out_return_reg,
	dwarf2out_stack_adjust, dwarf2out_frame_debug, primary_filename,
	add_AT_lbl_id, add_AT_lbl_offset, type_tag, decl_start_label,
	gen_compile_unit_die, dwarf2out_init): Constify a char*.

	* dwarf2out.h (dwarf2out_init): Likewise.

	* dwarfout.c (filename_entry, primary_filename, last_filename,
	type_tag, output_compile_unit_die, dwarfout_init): Likewise.

	* tree.h (dwarf2out_def_cfa, dwarf2out_window_save,
	dwarf2out_args_size, dwarf2out_reg_save, dwarf2out_return_save,
	dwarf2out_return_reg): Likewise.

2000-04-26  Andreas Jaeger  <aj@suse.de>

	* extend.texi (Function Attributes): Fix description of pure
	attribute.

2000-04-26  Jason Merrill  <jason@casey.cygnus.com>

	* integrate.c (output_inline_function): Do clear DECL_DEFER_OUTPUT
	before calling rest_of_compilation.

2000-04-26  Andreas Jaeger  <aj@suse.de>

	* config/mips/linux.h: Remove erroneous commit of #if 0/#endif in
	last patch.

2000-04-25  Richard Henderson  <rth@cygnus.com>

	* cse.c (cse_insn): Emit barrier after unconditional jump.

	* calls.c (expand_call): Disable tail call generation once
	rtx_equal_function_value_matters is false.

	* reg-stack.c (convert_regs_1): Treat EDGE_ABNORMAL_CALL edges
	like EDGE_EH edges.

2000-04-25  Jason Merrill  <jason@casey.cygnus.com>

	* dwarf2out.c (add_bound_info): Don't crash on an unexpanded SAVE_EXPR.

	* dwarfout.c (output_decl): Ignore NAMESPACE_DECLs.

	* dwarf2out.c (gen_subprogram_die): The class-scope declaration DIE
	is the primary DIE for a member function.
	(gen_decl_die): Call set_decl_origin_self here.
	* dwarfout.c (output_decl): And here.
	* integrate.c (output_inline_function): Not here.
	Don't clear DECL_INLINE until after calling rest_of_compilation.
	(set_decl_origin_self): No longer static.
	* tree.h: Add prototype.
	* toplev.c (note_deferral_of_defined_inline_function): Only write
	out abstract instance for actual inlines.

2000-04-25  Alexandre Oliva  <aoliva@cygnus.com>

	* config/mn10300/mn10300.h (REG_CLASS_FROM_LETTER): Return
	EXTENDED_REGS only if TARGET_AM33.
	* config/mn10300/mn10300.md (movsi, addsi): Avoid exposing
	SP_REGS to register allocation and reloading unless absolutely
	necessary.
	(movsi3): Remove special-case of adding non-constants to SP.

2000-04-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* aclocal.m4 (gcc_AC_NEED_DECLARATION): This macro now requires
	INCLUDES to search and does not provide any of its own.  Also it
	now accepts optional ACTION-IF-NEEDED and ACTION-IF-NOT-NEEDED
	parameters.  Also it does not call AC_DEFINE.
	(gcc_AC_NEED_DECLARATIONS): Likewise.  Also this macro now calls
	AC_DEFINE and provides for automatic entries for autoheader.
	(gcc_AC_FUNC_PRINTF_PTR): Cleanup C code in test.

	* configure.in (gcc_AC_NEED_DECLARATIONS): Save and restore CFLAGS
	so we can pass -I flags and include gansidecl.h/system.h in this
	test.

	* acconfig.h: Delete all NEED_DECLARATION_* entries.

2000-04-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* acconfig.h (ENABLE_STD_NAMESPACE, ENABLE_CHECKING,
	ENABLE_TREE_CHECKING, ENABLE_RTL_CHECKING, ENABLE_GC_CHECKING,
	ENABLE_GC_ALWAYS_COLLECT): Delete entries.

	* configure.in (ENABLE_STD_NAMESPACE, ENABLE_CHECKING,
	ENABLE_TREE_CHECKING, ENABLE_RTL_CHECKING, ENABLE_GC_CHECKING,
	ENABLE_GC_ALWAYS_COLLECT): Use three argument form of AC_DEFINE
	for these macros.  Clean up spacing and linewraps.

2000-04-26  Jason Merrill  <jason@casey.cygnus.com>

	* calls.c (expand_call): Use get_callee_fndecl.

	* print-tree.c (print_node): Print the chain of an _EXPR.

Tue Apr 25 16:16:04 2000  Andrew MacLeod  <amacleod@cygnus.com>
			  Jim Wilson  <wilson@cygnus.com>
			  Andrew Haley  <aph@cygnus.com>

	* config/ia64/crtbegin.asm: Add IA-64 unwind support.  Correct alloc
	and gp save/restore problems.
	* config/ia64/crtend.asm: Add IA-64 unwind support.
	* config/ia64/ia64.c (ia64_compute_frame_size): Don't include pr_size
	in fr_pad_size calculation.
	(save_restore_insns): Move PR save area.  Correct uses of
 	RTX_FRAME_RELATED_P.
	(ia64_expand_prologue): Mark alloc with RTX_FRAME_RELATED_P.
	(ia64_expand_epilogue): Add eh_epilogue support.
	(ia64_function_prologue): Emit .prologue directive.
	(ia64_init_machine_status, ia64_mark_machine_status): New functions.
	(ia64_override_options): Set init_machine_status and
	mark_machine_status.
	(rtx_needs_barrier): Handle bsp reads and writes.
	(spill_offset, sp_offset, spill_offset_emitted, tmp_reg, tmp_saved):
	New static variables.
	(process_set, process_for_unwind_directive): New functions.
	* config/ia64/ia64.h (ASM_OUTPUT_XDATA_CHAR, ASM_OUTPUT_XDATA_SHORT,
	ASM_OUTPUT_XDATA_INT, ASM_OUTPUT_XDATA_DOUBLE_INT, ASM_OUTPUT_EH_CHAR,
	ASM_OUTPUT_EH_SHORT, ASM_OUTPUT_EH_INT, ASM_OUTPUT_EH_DOUBLE_INT): New
	macros.
	(EH_FRAME_SECTION_ASM_OP): Define to IA_64.unwind section.
	(IA64_UNWIND_INFO, HANDLER_SECTION, IA64_UNWIND_EMIT): Define.
	(struct machine_function): Define.
	* config/ia64/ia64.md (bsp_value, set_bsp, eh_epilogue): New patterns.

2000-04-25  Bruce Korb  <bkorb@gnu.org>

	* fixinc/Makefile.in: make the removal of old programs more
	robust
	* fixinc/mkfixinc.sh: use the two new targets in the Makefile:
	install-bin and install-sh

2000-04-25  Nick Clifton  <nickc@cygnus.com>

	* integrate.c (FUNCTION_ATTRIBUTE_INLINABLE_P): If not
	defined, define to return zero.
	(function_cannot_inline_p): If a function has any target
	specific attributes, then use the macro
	FUNCTION_ATTRIBUTE_INLINABLE_P to allow the target to decide
	whether it can be inlined.  If it cannot, issue a suitable
	explanation.

	* tm.texi: Add a new node 'Inlining' to document the new macro
	FUNCTION_ATTRIBUTE_INLINABLE_P.

2000-04-25  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.h (struct cpp_buffer): Add 'mapped' flag; fix
	commentary.

2000-04-25  Neil Booth  <NeilB@earthling.net>

	Restore previous patch, plus the following fixes:

	* cpphash.c (_cpp_create_definition): Test PREV_WHITESPACE in
	flags, not CPP_OPEN_PAREN.
	* cpplex.c (expand_token_space, init_token_list,
	cpp_free_token_list): Put the dummy token at list->tokens[-1].
	(_cpp_lex_line, _cpp_lex_file): token list is 0-based.

Tue Apr 25 14:06:40 2000  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

	* config/i386/freebsd.h (INT_ASM_OP): Define.

Tue Apr 25 14:51:07 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* loop.c (strength_reduce): Fix typo in the last checkin.

Tue Apr 25 07:33:12 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* stor-layout.c (finalize_record_size): Simplify to use existing
	functions.
	(compute_record_mode): No longer static.
	* tree.h (compute_record_mode): New declaration.

2000-04-25  Neil Booth  <NeilB@earthling.net>

	* Revert my patch below until cause of build failures
	determined.

2000-04-25  Richard Henderson  <rth@cygnus.com>

	* combine.c (combine_instructions): Add missing argument
	to try_combine.

	* toplev.c (rest_of_compilation): Delay sibcall optimization
	until after emit_eh_context.

2000-04-24  Nick Clifton  <nickc@redhat.com>

	* combine.c (combine_instructions): Do not try to combine a
	sequence of insns when the second insn has been replaced by a
	note.

Mon Apr 24 17:34:18 2000  Mumit Khan  <khan@xraylith.wisc.edu>

	* gcc.c (load_specs): New static function.
	(read_specs): Use it.

	* gcc.c (lookup_compiler): Make multiple passes for case
	insensitive filesystems.

2000-04-24  Neil Booth  <NeilB@earthling.net>

	* cpphash.c: replace HSPACE_BEFORE with PREV_WHITESPACE.
	* cpphash.h (_cpp_check_directive): new.
	* cpplex.c (handle_newline, cpp_free_token_list,
	init_trigraph_map, trigraph_ok, trigraph_replace,
	backslash_start, skip_block_comment, skip_line_comment,
	skip_whitespace, parse_name, parse_number, parse_string,
	copy_comment, _cpp_lex_line, spell_char, spell_string,
	spell_comment, spell_name, spell_other, _cpp_lex_file,
	_cpp_output_list): new.
	(expand_name_space): take length argument.
	(init_token_list): add comment list initialisation.
	(cpp_scan_line): use auto_expand_name_space.  PREV_WHITESPACE
	instead of HSPACE_BEFORE.

	* cpplib.c (_cpp_check_directive): new
	* cpplib.h (cpp_name, PREV_WHITESPACE, PREV_COMMENT,
	DIGRAPH, UNSIGNED_INT, TOK_NAME): new.
	(HSPACE_BEFORE): delete.
	(TTYPE_TABLE): rearrange.
	(struct cpp_toklist): update.

2000-04-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* aclocal.m4 (gcc_AC_HEADER_STRING, gcc_AC_FUNC_PRINTF_PTR,
	gcc_AC_C_VOLATILE, gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG): Use the three
	argument form of AC_DEFINE.

	* configure.in (DEFAULT_LINKER, DEFAULT_ASSEMBLER,
	HAVE_INTTYPES_H, PACKAGE, VERSION, ENABLE_WIN32_REGISTRY,
	WIN32_REGISTRY_KEY, HAVE_GAS_SUBSECTION_ORDERING, HAVE_GAS_WEAK,
	HAVE_GAS_HIDDEN, HAVE_AS_REGISTER_PSEUDO_OP, AS_SPARC64_FLAG,
	HAVE_AS_OFFSETABLE_LO10, ENABLE_NEW_GXX_ABI): Likewise.

	* acconfig.h: Delete stubs made redundant by 3-arg AC_DEFINE.

2000-04-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* Makefile.in (GCC_FOR_TARGET, GCC_CFLAGS, LIBGCC2_INCLUDES,
	deduced.h): Use -isystem, not -I, for including system headers.

2000-04-24  Nick Clifton  <nickc@cygnus.com>

	* config/fr30/fr30.md (addsi3): Do not use small add instruction if
	the source register is the frame pointer or arg pointer.
	(addsi3_small_int): Disallow if source register is the frame
	pointer or arg pointer.

2000-04-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* configure.in (ENUM_BITFIELDS_ARE_UNSIGNED): Delete redundant
	call to AC_MSG_RESULT.