c-common.c (scanf_flag_specs): Add flags ' and I.

[gcc.git] / gcc / ChangeLog

2000-10-12  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (scanf_flag_specs): Add flags ' and I.
	(strftime_flag_pairs): Disallow any pair of the _, - and 0 flags,
	or the ^ and # flags together.
	(scan_char_table): Handle the ' and I flags.
	(format_types): Add ' and I flags for scanf.

2000-10-12  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (print_char_table): Use the unpromoted type for
	lengths "h" and "hh" with conversions dioxXu.
	(check_format_types): Apply the default argument promotions where
	the wanted type is not a pointer target.

2000-10-11  Michael Meeks  <mmeeks@gnu.org>
            Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-typeck.c (check_modify_expr): New function.
	(build_modify_expr): Call it if warn_sequence_point.
	* c-decl.c (warn_sequence_point): New variable.
	(c_decode_option): Handle -Wsequence-point and
	-Wno-sequence-point.  Enable -Wsequence-point as part of -Wall.
	* c-tree.h (warn_sequence_point): Declare.
	* invoke.texi (-Wsequence-point): Document.
	* toplev.c (documented_lang_options): Add -Wsequence-point and
	-Wno-sequence-point.
	Original work by Michael Meeks, 16 Jun 1998.

Wed Oct 11 06:15:41 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* tree.c (get_narrower): Don't look at precision of field if
	not laid out yet.

Tue Oct 10 23:14:33 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.c (valid_machine_decl_attribute): Allow `extern'
	declaration for data with "progmem" attribute.

2000-10-09  Marek Michalkiewicz  <marekm@linux.org.pl>

	* config/avr/avr.c (out_shift_with_cnt): Use AS2 macro.
	Correct insn length if shift count is a memory operand.
	* config/avr/avr.md: New define_peephole2 to use *reload_inqi.
	(*iorhi3_clobber): Change lo8 to hi8.
	(zero_extendhisi2): Change %B0 to %A1.
	(ashlhi3, ashrhi3): Correct insn length.
	(andhi3, abssf2, extendqisi2, extendhisi2): Change "cc"
	from "clobber" to "set_n" in some alternatives.

2000-10-10  Jakub Jelinek  <jakub@redhat.com>

	* reload1.c (calculate_needs_all_insns): If deleting an instruction,
	remove its insn_chain structure as well.

2000-10-09  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* dbxout.c (dbxout_source_line): Remove extra tab.

2000-10-09  Hans-Peter Nilsson  <hp@bitrange.com>

	* config/elfos.h (UNIQUE_SECTION): Apply STRIP_NAME_ENCODING on name.

2000-10-09  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (LANG_LIB2FUNCS): Remove.
	(LIB2FUNCS): Remove _pure.
	(LIB2ADD): Remove LANG_LIB2FUNCS.
	(stage_a): Don't set LANG_LIB2FUNCS.
	* libgcc2.c (__terminate): Mark noreturn.
	(__pure_virtual): Remove.
	* mklibgcc.in: Remove LIB2ADD .txt processing.

2000-10-09  Richard Earnshaw  <rearnsha@arm.com>

	* arm.md (push_multi): Revert unintended change.

2000-10-09  Richard Earnshaw  <rearnsha@arm.com>

	* arm.c: Miscellaneous white space and comment clean-ups.  No 
	functional change.
	* arm.md: Likewise.

2000-10-09  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-common.c (c_expand_builtin_printf): Set the TREE_TYPE of a new
	STRING_CST by calling combine_strings.

2000-10-09  Richard Earnshaw  <rearnsha@arm.com>

	* arm.c (thumb_expand_movstrqi): Rewrite to support SSA form.
	(thumb_output_move_mem_multiple): Support new insn format.
	* arm.md (movmem12b): Use SSA compatible format.
	(movmem8b): Likewise.

2000-10-09  Richard Earnshaw  <rearnsha@arm.com>

	* arm.md (predicable): New attribute, default to "no".
	(all patterns): Mark as predicable if appropriate.
	(conditional execution splits): Split using predication format.
	(define_cond_exec): Define.
	* arm.c (arm_print_operand): handle insn predicate.
	
2000-10-09  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* README.NS32K: Remove file.

2000-10-09  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* README-bugs: Remove file.

2000-10-08  Philipp Thomas  <pthomas@suse.de>
	* aclocal.m4 (AM_GNU_GETTEXT): Fix non portable use of == operator
	for test.
	* configure: Rebuilt.

2000-10-08  Philipp Thomas  <pthomas@suse.de>
	* aclocal.m4 (AM_WITH_NLS): When not using included gettext,
	disable catalog building if no suitable program was found.
	Move warning message from here
	(AM_GNU_GETTEXT): To here.
	* configure: Rebuilt.

2000-10-08  Philipp Thomas  <pthomas@suse.de>
	* aclocal.m4 (GCC_PATH_PROG): New. Like AC_PATH_PROG but uses
	different cache variables.
	(GCC_PATH_PROG_WITH_TEST): New. Like AM_PATH_PROG_WITH_TEST but
	uses different cache variables.
	(AM_WITH_NLS): Use GCC_PATH_PROG and GCC_PATH_PROG_WITH_TEST.
	* configure: Regenerated.
	
2000-10-08  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (libgcc.mk): Pass SHLIB_EXT, not SHLIB_LIBS.
	* configure.in (sparc*-*-solaris*): Use t-slibgcc{,-sld}.
	* mklibgcc.in: Consider SHLIB_LINK the entire shlib build command.
	Use SHLIB_EXT.

	* config/t-linux (SHLIB_EXT): New.
	(SHLIB_LINK): Use the entire build command, with substitutions.
	(SHLIB_LIBS): Remove.
	* config/alpha/t-osf4: Likewise.
	* config/mips/t-iris6: Likewise.
	* config/sparc/t-sol2: Likewise, but move shlib stuff...
	* config/sparc/t-slibgcc-sld: ...here.
	* config/sparc/t-slibgcc: New file.

2000-10-08  Joseph S. Myers  <jsm28@cam.ac.uk>

	* tm.texi (INTMAX_TYPE, UINTMAX_TYPE): Define.
	* c-common.h (enum c_tree_index): Add CTI_INTMAX_TYPE and
	CTI_UINTMAX_TYPE.
	(intmax_type_node, uintmax_type_node): Define.
	* c-common.c (decl_attributes): If pedantic, warn if `mode'
	attributes create a type wider than intmax_t.
	(T_IM, T_UIM): Define properly.
	* c-decl.c (INTMAX_TYPE, UINTMAX_TYPE): Define if not already
	defined.
	(init_decl_processing): Initialize intmax_type_node and
	uintmax_type_node.
	* c-lex.c (lex_number): When pedantic and warning for integer
	constants that are too large, in C99 mode warn for those that have
	a type wider than long long.

2000-10-08  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (FMT_FLAG_ARG_CONVERT, FMT_FLAG_SCANF_A_KLUDGE,
	FMT_FLAG_FANCY_PERCENT_OK): Define.
	(format_char_info): Add flag "4" to comment.
	(format_flag_spec, format_flag_pair): New structures.
	(format_kind_info): Add additional fields to control format
	checking.
	(printf_flag_specs, printf_flag_pairs, scanf_flag_specs,
	scanf_flag_pairs, strftime_flag_specs, strftime_flag_pairs): New
	arrays.
	(time_char_table): Use "4" flag to handle %Ey.
	(format_types): Add entries for new fields.
	(get_flag_spec): New function.
	(check_format_info): Increase size of flag_chars[] to 256.
	Control format checking using the new fields of a format_kind_info
	and the new tables; remove all conditionals on printf_format_type,
	scanf_format_type or strftime_format_type.  Handle all details of
	bad combinations of flags (including width, precision and strftime
	modifiers) through data rather than ad hoc code.  Handle all
	details of standard versions in which flags appeared through
	data.  Use the "4" flag.

2000-10-07  Will Cohen  <wcohen@redhat.com>, Kazu Hirata  <kazu@hxi.com>

	* config/h8300/h8300.md: Remove the memory alternative and correct
	the insn lengths in the templates for sign extention and zero
	extention.

2000-10-07  Richard Henderson  <rth@cygnus.com>

	* calls.c (expand_call): Disallow sibcalls to noreturn functions.
	* flow.c (make_edges): Revert last change.

	* config/alpha/alpha.h (FUNCTION_OK_FOR_SIBCALL): Don't test
	TREE_THIS_VOLATILE.
	* config/pa/pa.h (FUNCTION_OK_FOR_SIBCALL): Likewise.

2000-10-06  David O'Brien  <obrien@dragon.nuxi.com>

	* config/alpha/elf.h: Standardize the formatting.

2000-10-06  David O'Brien  <obrien@FreeBSD.org>

	* config/alpha/elf.h: Protect the ASM_OUTPUT_IDENT definition with an
	#undef.

2000-10-06  Richard Henderson  <rth@cygnus.com>

	* function.c (diddle_return_value): Examine
	current_function_return_rtx instead of the DECL_RESULT.
	(expand_function_end): Handle reloading DECL_RESULT from memory
	into a hard register.  Query promote_mode for sign of mismatched
	modes.

2000-10-06  Vladimir Makarov  <vmakarov@touchme.toronto.redhat.com>

	* haifa-sched.c (schedule_insns): Fix typo in freeing
	forward_dependency_cache.

2000-10-06  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.md (calli_pcrel, call_valuei_pcrel): Add
	`TARGET_SH2' as a condition.

2000-10-06  Vladimir Makarov  <vmakarov@touchme.toronto.redhat.com>

	* haifa-sched.c (anti_dependency_cache, output_dependency_cache,
	forward_dependency_cache): New variables.
	(add_dependence, remove_dependence): Use anti_dependency_cache and
	output_dependency_cache.
	(compute_block_forward_dependences): Use forward_dependency_cache.
	(schedule_insns): Allocate and free memory for anti/output/forward
	dependencies caches.
	
2000-10-06  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.md (call, call_value): Use `TARGET_SH2' instead of
	`! TARGET_SH1'.  Reindent.

2000-10-06  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* builtins.c (is_valid_printf_arglist, expand_builtin_printf):
	Move functions from here ...

	* c-common.c (is_valid_printf_arglist, c_expand_builtin_printf):
	... to here.
	(c_expand_builtin): New function.
	(init_function_format_info): Don't set `check_function_format_ptr'.
	(c_common_nodes_and_builtins): Set built_in_class type for
	printf/__builtin_printf to BUILT_IN_FRONTEND.
	(c_expand_expr): Handle CALL_EXPRs that are front-end builtins.

	* c-common.h (build_function_call): Declare.

	* expr.c (expand_expr): Pass builtins with class BUILT_IN_FRONTEND
	to `lang_expand_expr' rather than `expand_builtin'.

	* tree.c (check_function_format_ptr): Delete.

	* tree.h (check_function_format_ptr): Likewise.

2000-10-06  Hans-Peter Nilsson  <hp@bitrange.com>

	* dwarf2out.c (build_cfa_loc): Correct to use DW_OP_regx or
	DW_OP_bregx when cfa->reg > 31.

	* frame-dwarf2.c (decode_stack_op) [case DW_OP_regx]: Add missing
	break.

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

	* c-decl.c (warn_missing_noreturn): Remove.
	(c_expand_body): Don't set or check can_reach_end.
	* c-tree.h (warn_missing_noreturn): Move ...
	* flags.h: ... here.
	(can_reach_end): Remove.
	* flow.c (check_function_return_warnings): New.
	(make_edges): No edge to exit for noreturn sibcalls.
	* function.c (expand_function_end): Save the return value
	clobber instruction.
	(mark_function_status): Mark it.
	* function.h (struct function): Add x_clobber_return_insn.
	* jump.c (can_reach_end): Remove.
	(calculate_can_reach_end): Remove.
	(jump_optimize_1): Don't call it.
	* output.h (check_function_return_warnings): Declare.
	* toplev.c (warn_missing_noreturn): Move from c-decl.c
	(rest_of_compilation): Call check_function_return_warnings.

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

	* Makefile.in (NM_FOR_TARGET): New.
	(libgcc.mk): Pass SHLIB_MKMAP, SHLIB_MAPFILES.
	(libgcc.a, stmp-multilib): Pass NM_FOR_TARGET.
	* mklibgcc.in: If SHLIB_MKMAP, build libgcc.map.  Depend the
	shared library build on that and EXTRA_MULTILIB_PARTS.
	* mkmap-flat.awk: New file.
	* mkmap-symver.awk: New file.
	* libgcc-std.ver: New file.
	* config/libgcc-glibc.ver: New file.
	* config/ia64/libgcc-ia64.ver: New file.
	* config/t-linux (SHLIB_MKMAP, SHLIB_MAPFILES): New.
	(SHLIB_LINK): Add --version-script.
	* config/ia64/t-ia64 (SHLIB_MAPFILES): Add libgcc-ia64.ver.
	* config/mips/t-iris6 (SHLIB_MKMAP, SHLIB_MAPFILES): New.
	* config/sparc/t-sol2 (SHLIB_MKMAP, SHLIB_MAPFILES): New.
	(SHLIB_LINK): Add -M.

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

	* Makefile.in (LIB2FUNCS): Add _clz.
	* libgcc2.c (__ffsdi2): Use count_trailing_zeros.
	(__clz_tab): Put in its own unit, non-static.
	* libgcc2.h: Always include longlong.h.

	* longlong.h [alpha] (count_leading_zeros): Use cmpbge with
	a zero instead of -1.
	(count_trailing_zeros): Likewise.

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

	* config/alpha/alpha.c (alpha_emit_setcc): Don't swap GT tests
	when second op1 is const0_rtx.  Validate op0 as a register.
	* config/alpha/alpha.md (setcc_internal): Don't allow constants
	in the first argument of the compare.
	(setcc_swapped_internal): Likewise.
	(setne_internal): Likewise.

2000-10-05  Geoff Keating  <geoffk@cygnus.com>

	* tree.c (tree_size): New function split out of copy_node.
	(make_node): Remove obstack handling.  Use tree_size.
	(copy_node): Use tree_size.
	* tree.h: Prototype tree_size.

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

	* diagnostic.c (output_format): Add missing break.

2000-10-05  Jim Wilson  <wilson@cygnus.com>

	* function.c (fixup_var_refs_1, case SET): When gen_move_insn returns a
	SEQUENCE, call emit_insn_before, copy PATTERN and REG_NOTES of last
	sequence insn to INSN, and delete last sequence insn.

2000-10-05  Phil Edwards  <pme@gcc.gnu.org>

	* gcc.c (main): Include generated configargs.h header
	and use arguments in '-v' output.

Thu Oct  5 16:16:57 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* gcc.c: Move data on prefixes forward in file and reorganize.
	(md_exec_prefix, md_startfile_prefix, md_startfile_prefix_1):
	Always define, but make null if no value.
	(static_specs): Add "md_exec_prefix", "md_startfile_prefix",
	and "md_startfile_prefix_1".
	(main): Check whether md_exec_prefix and the others are the
	null string rather than whether the macro is defined.

Thu Oct  5 19:04:18 2000  J"orn Rennecke <amylaar@redhat.co.uk>

	* (convert_move): Use zero_extendpsisi2 to do an unsigned extension
	from PSImode to SImode.

2000-10-05  Jakub Jelinek  <jakub@redhat.com>

	* emit-rtl.c (gen_lowpart_common) [REAL_ARITHMETICS]: Fix conversion
	from float to integral mode with HOST_BITS_PER_WIDE_INT 64.
	* dwarf2out.c (add_const_value_attribute): Divide by 4, not
	sizeof(long).

Thu Oct  5 09:31:31 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* fold-const.c (fold, case MINUS_EXPR, case EQ_EXPR): Perform
	negation in proper type.a

2000-10-04  Richard Henderson  <rth@cygnus.com>

	* configure.in (enable-shared): New.
	* Makefile.in (LIBGCC_DEPS): Depend on EXTRA_PARTS as well.
	(libgcc.mk): Pass SHLIB_LINK, SHLIB_LIBS, SHLIB_MULTILIB to mklibgcc.
	* mklibgcc.in: Use them to link shared a libgcc.
	* config/t-linux (SHLIB_LINK, SHLIB_LIBS): New.
	* config/alpha/t-ieee (SHLIB_MULTILIB): New.
	* config/mips/t-iris6 (SHLIB_LINK, SHLIB_LIBS): New.
	* config/sparc/t-sol2 (SHLIB_LINK, SHLIB_LIBS): New.

	* configure.in (alpha-osf*): Use t-osf and x-osf.
	* config/alpha/t-osf: New file.
	* config/alpha/t-osf4: New file.
	* config/alpha/x-osf: New file.
	* config/alpha/x-alpha: Remove file.

2000-10-04  Will Cohen  <wcohen@redhat.com>

	* c-typeck.c (process_init_element): Added warning for zero-length
	array.

	* extend.texi (Zero Length): State that static initializers for
	zero-length arrays are not allowed.

Mon Oct  2 14:50:14 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* rtlanal.c (single_set_1): Do not require USE and CLOBBERs
	to come last.

2000-10-03  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/float-c4x.h: New.
	* configure.in (c4x-*): Set float_format to c4x.
	* configure: Regenerate.	

2000-10-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* configure.in (sparc-*-solaris2*): Disable 32-to-64 cross
	compilation for solaris versions 2.7 and greater.

2000-10-02  David O'Brien  <obrien@dragon.nuxi.com>

	* config/i386/freebsd.h (NO_PROFILE_COUNTERS): Define.

2000-10-01  Mark Mitchell  <mark@codesourcery.com>

	* config/ns32k/genix.h: Remove.
	* config/ns32k/x-genix: Likewise.
	* config/ns32k/xm-genix.h: Likewise.
	* config/fx80: Remove all filee in directory.
	* config/pyr: Likewise.
	* config/tahoe: Likewise.
	* config/gmicro: Likewise.
	* config/spur: Likewise.
	* configure.in: Remove configury bits for above targets.
	* configure: Regenerated.
	
	* configure.in: Don't configure chill by default.
	* configure: Regenerated.
	
	* c-decl.c (c_expand_body): Don't generate RTL if flag_syntax_only.
	(lang_mark_false_label_stack): Remove.
	* c-lex.c (init_c_lex): Add file_info_tree as GC root.  Allocate
	<top level> string in GC area.
	(mark_splay_tree_node): New function.
	(mark_splay_tree): Likewise.
	* except.c (mark_eh_status): Only call lang_mark_false_label_stack
	if it exists.
	* ggc-callbacks.c (lang_mark_false_label_stack): Remove.
	* ggc-common.c (lang_mark_false_label_stack): Change type.
	* ggc.h (ggc_alloc_string): Add comment.
	(ggc_strdup): New function.
	
Sat Sep 23 19:10:20 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.h (BRANCH_COST): Define as 0.

	* config/pdp11/pdp11.c: #include "tree.h" added.

2000-09-30  Marek Michalkiewicz  <marekm@linux.org.pl>

	* config/avr/avr.c (ashlhi3_out, ashlsi3_out, ashrhi3_out,
	ashrsi3_out, lshrhi3_out, lshrsi3_out): Optimize more cases
	with known shift count.
	* config/avr/avr.md (ashlsi3, ashrsi3, lshrsi3):
	New alternative for shift count 2 with no scratch register.
	(ashlhi3, ashlsi3): Change "cc" attribute from "clobber" to
	"set_n" for shift counts 1 and 2.

2000-09-30  Geoff Keating  <geoffk@cygnus.com>

	* config/rs6000/rs6000.md (movsi_to_cr): Remove the USE.  Calculate
	the mask value from the individual SET operations.
	(return_internal_si): Move the USE after the RETURN.
	(return_internal_di): Likewise.
	(return_and_restore_fpregs_si): Likewise.
	(return_and_restore_fpregs_di): Likewise.
	(return_eh_si): Likewise.
	(return_eh_di): Likewise.
	* config/rs6000/rs6000.c (mtcrf_operation): Don't look for,
	or check, the USE.
	(rs6000_emit_prologue): Don't emit the USE for movsi_to_cr.
	Don't generate a PARALLEL around a single operation movsi_to_cr.
	Generate the RETURN first in any PARALLELs.

	* rtlanal.c (single_set_1): Use fatal_insn to display the
	invalid insn.  Check for more cases when a USE or CLOBBER occurs
	before a SET.
	* Makefile.in: Update dependencies for rtlanal.o.

2000-09-30  Joseph S. Myers  <jsm28@cam.ac.uk>

	* i386.c: Move include of "config.h" to before that of <setjmp.h>.

2000-09-30  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-tree.texi, contrib.texi, gcc.texi, install.texi, invoke.texi:
	Consistently use @email for formatting email addresses.

2000-09-29  Richard Henderson  <rth@cygnus.com>

	* cse.c (notreg_cost): New argument outer.
	(COST): Pass in SET to notreg_cost
	(COST_IN): New.
	(fold_rtx): Use COST_IN.  Prefer constants when costs
	are the same.

2000-09-29  David Edelsohn  <edelsohn@gnu.org>

	* fixinc/inclhack.def (broken_cabs): Generalize regex.
	* fixinc/fixincl.x: Regenerate.

2000-09-29  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* loop.c (check_final_value): A GIV is not replaceable if used
	before set.

Fri Sep 29 10:04:12 2000  Jeffrey A Law  (law@cygnus.com)

	* version.c: Bump to gcc-2.97.

Frs Sep 29 13:37:59 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* final.c (final_scan_insn): Remove extra extract_insn call;
	Use caching for constrain_operands.
	(cleanup_subreg_operands): Use caching for extract_insn.
	* recog.c (constrain_operands_cached): New.
	* recog.h (constrain_operands_cached): Declare.
	* i386.c (ix86_attr_length_immediate_default,
	ix86_attr_length_address_default, ix86_agi_dependant): Cache
	extract_insn call.

	* recog.c (asm_noperands): Tweak.
	(extract_insn): Do not call asm_noperads for non-asm instructions.

Fri Sep 29 13:20:42 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* recog.c (recog_memoized): Rename to recog_memoized_1.
	* recog.h (recog_memoized): Rename to recog_memoized_1.
	(recog_memoized): New macro.
	* rtl.h (single_set): Rename to single_set_1
	(single_set): New macro.
	* rtlanal.c (single_set): Rename to single_set_1;  expect clobbers
	to be last.

	* i386.md (strmovsi_1, strmovhi_1 strmovqi_1):
	Do not use match_dup of input operands at outputs.
	Use register_operand for memory expression.
	(rep_movsi): Put use last, canonicalize.
	Use register_operand for memory expression.
	(rep_movqi): Put use last.
	Use register_operand for memory expression.
	(strsetsi_1, strset_hi_1, strsetqi_1): Do not use match_dup
	of input operands at outputs.  Use register_operand for memory
	expression.
	(rep_stossi): Put use last; canonicalize; fix match_dup in
	the address expression
	(rep_stosqi): Likewise.
	(memcmp expander): Update calls.
	(cmpstrsi_nz_1, cmpstrsi_1, strlensi_1): Avoid match_dups in
	the clobbers.

	* i386.md (fp_jcc_3, fp_jcc_4, jp_fcc_5): if_then_else operand is
	VOIDmode.
	(fp_jcc_4, fp_jcc_3): Refuse unordered comparisons.

2000-09-28  David O'Brien  <obrien@FreeBSD.org>

	* config/i386/freebsd-aout.h: New, FreeBSD a.out config file.
	Contains the old contents of config/i386/freebsd.h
	* config/i386/freebsd.h: Now the ELF rather than a.out config file.
	Contains the old contents of config/i386/freebsd-elf.h
	* config/i386/freebsd-elf.h: Retire this file -- contents moved to
	config/i386/freebsd.h.
	* configure.in: Adjust for above changes.
	* po/POTFILES.in: Likewise.
	* po/en_GB.po: Likewise.
	* po/gcc.pot: Likewise.
	* configure: Rebuilt.

2000-09-28  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* doloop.c (doloop_modify): Prevent delete_insn() from
	deleting too much.  Prefer loop->top over loop->start as
	target for the new JUMP insn.
	(doloop_valid_p): Ignore loop with exit_count != 0.

2000-09-28  Philipp Thomas  <pthomas@suse.de>

	* invoke.texi (i386 Options): Add athlon to table of possible
	choices for -mcpu=.

2000-09-28  Gabriel Dos Reis  <gdr@codesourcery.com>

	* diagnostic.h (output_clear_message_text): New function.
	(output_message_text): New macro.

	* diagnostic.c (clear_text_info): Rename to
	output_clear_message_text. 
	(output_clear): Adjust.
	(output_finish): Rename to output_finalize_message.  Tweek.
	(output_to_stream): Adjust. 

2000-09-28  Neil Booth  <neilb@earthling.net>

	* cpperror.c (_cpp_begin_message):  Do the test for suppression
        of warnings and pedantic warnings before the "is a warning an
        error" tests.
	* cppinit.c (cpp_handle_option): Remove surplus \n.
	* cpplex.c (ON_REST_ARG): Delete.
	(skip_block_comment): Initialise prevc.
	(parse_args): Improve error messages.
	(maybe_paste_with_next): Use CONTEXT_VARARGS rather
	than ON_REST_ARG.
	* cpplib.c (cpp_push_buffer): Fix grammar in message.
	* cppmain.c (main): Set callbacks for #ident and #pragma
	only if no_output option is false.
	(do_pragma_implementation): Only call the #pragma handler
	if it is set in the cpp_reader structure.

Wed Sep 27 14:00:07 2000  Donald Lindsay  <dlindsay@cygnus.com>

	* integrate.c (copy_insn_list): if an ignored return value
	is being clobbered, skip cloning that into the inline copy.

2000-09-27  Joseph S. Myers  <jsm28@cam.ac.uk>

	* extend.texi, invoke.texi, gcc.texi, install.texi: Consistently
	use @uref for formatting URLs.

2000-09-27  Mark Elbrecht  <snowball3@bigfoot.com>

	* config/i386/djgpp.h (UNIQUE_SECTION): Constify the variables
	name and prefix.

Tue 26-Sep-2000 18:25:38 BST  Neil Booth  <neilb@earthling.net>

	* gcc.c (cpp_options): Add spec for -ftabstop=.
	(invoke_as): New spec that handles invoking as.
	Update specs to handle -save-temps and -traditional.
	* ch/lang-specs.h, f/lang-specs.h, java/lang-specs.h:
	Use invoke_as.
	* cp/lang-specs.h, objc/lang-specs.h: Update to use
	invoke_as, and handle -save-temps and -traditional (if
	appropriate).

2000-09-26  Jakub Jelinek  <jakub@redhat.com>

	* config/sparc/sparc.c (sparc_emit_set_const64): Don't abort when
	op0 is a SUBREG.
	(function_arg_slotno): Accept TImode/CTImode.
	* config/sparc/sparc.h (MIN_UNITS_PER_WORD): If IN_LIBGCC2 define
	to UNITS_PER_WORD.

2000-09-26  Michael Hayes  <mhayes@cygnus.com>

	* flow.c (flow_loop_pre_header_scan): Punt if loop enters
	from entry block.

2000-09-25  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64.h (INDEX_REG_CLASS): Define to GENERAL_REGS.
	(REGNO_OK_FOR_INDEX_P): Define to REGNO_OK_FOR_BASE_P.
	(LEGITIMATE_ADDRESS_DISP): Use LEGITIMATE_ADDRESS_REG.
	(REG_OK_FOR_INDEX): Define to REG_OK_FOR_BASE_P.

Tue 26-Sep-2000 00:16:22 BST  Neil Booth  <neilb@earthling.net>

        * cpplex.c (parse_args): Don't set VOID_REST flag.
	(CONTEXT_VARARGS): New flag.
	(maybe_paste_with_next): Set context earlier in loop.  Use
	it.  Do varargs test with CONTEXT_VARARGS flag.
	(push_arg_context): Set CONTEXT_VARARGS flag if we're
	pushing an argument context for a varargs argument.
	* cpplib.h (VOID_REST): Delete.
	* gcc.dg/cpp/vararg1.c: Add test case.   

2000-09-25  Branko Cibej  <branko.cibej@hermes.si>

        * flags.h:  Declare warning flag warn_system_headers.
        * toplev.c:  Define it.
        (W_options): Add option -Wsystem-headers.
        * diagnostic.c (count_error): Test warn_system_headers.
        * invoke.texi:  Add description for -Wsystem-headers.
	* cpplib.h (cpp_options): New member warn_system_headers.
	* cpphash.h (CPP_PEDANTIC, CPP_WTRADITIONAL): Don't test
	CPP_IN_SYSTEM_HEADER.
	* cpplib.c (do_import, do_pragma_once): Likewise.
	* cpperror.c (_cpp_begin_message): Test warn_system_headers
	and CPP_IN_SYSTEM_HEADER.
	* cppinit.c (handle_option): Recognize -Wsystem_headers.
	(print_help): Describe -Wsystem_headers.
	* cpplex.c (lex_line): Reorganize condition so that warnings
	about C++ comments in system headers can be enabled. Remove
	label do_line_comment.

Mon 25-Sep-2000 23:38:27 BST  Neil Booth  <neilb@earthling.net>

	* cpplex.c (save_comment): Only store the initial '/'
	now.
	(lex_token): Combine handling of the two comment types.
	Pass everything but the initial '/' to save_comment.	

Mon 25-Sep-2000 23:31:45 BST  Neil Booth  <neilb@earthling.net>

	* cpphash.h (_cpp_digraph_spellings, _cpp_process_directive,
	_cpp_can_paste): New library-internal prototypes.
	* cpplex.c (dump_param_spelling, output_line_command,
	output_token, cpp_scan_buffer, cpp_scan_buffer_nooutput,
	cpp_printf, cpp_output_list): Move to cppoutput.c.
	(process_directive, can_paste, digraph_spellings): Add _cpp_ prefix.
	* cppmacro.c (dump_macro_args, cpp_dump_definition) Move to
	cppoutput.c.
	* cppoutput.c (dump_macro_args, cpp_dump_definition, output_token,
	dump_param_spelling, output_line_command, cpp_scan_buffer,
	cpp_scan_buffer_nooutput, cpp_printf, cpp_output_list): Moved
	from elsewhere.
	* Makefile.in: Add cppoutput.c.
	* po/POTFILES.in: Add cppoutput.c.

2000-09-25  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.c (ia64_print_operand): Define 'e' as 64-n.
	* config/ia64/ia64.md (rotrsi3): Allow variable rotates; don't
	split until after reload.
	(rotlsi3, rotldi3): New.

2000-09-25  Gabriel Dos Reis  <gdr@codesourcery.com>

	* diagnostic.c (output_last_position): Define.
	(set_real_maximum_length): Tweek.
	* diagnostic.h (output_last_position): Declare.

2000-09-25  Kazu Hirata  <kazu@hxi.com>

	* config/i386/i386.c: Fix formatting.

2000-09-24  Alan Lehotsky  <alehotsky@cygnus.com>

	* emit-rtl-c (gen_lowpart_common): Accept non-paradoxical SUBREG when
	UNITS_PER_WORD is small.

2000-09-25  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (format_char_info): Add flags2; update comments.
	(print_char_table, scan_char_table, time_char_table): Split some
	flags out into flags2.
	(check_format_info): Use flags2 for those flags, for identifying
	the initial character of a scanf scanset, and for identifying
	printf formats where the '0' flag is ignored with precision.

2000-09-25  Hans-Peter Nilsson  <hp@axis.com>

	Changes below marked "here" add TABs on either or both sides,
	covering start of line, up to any operand for all noted .*ASM.*_OP
	definitions.  All callers changed.
	* tm.texi: Make documented *_ASM.*_OP:s include spacing
	(TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP, SHARED_SECTION_ASM_OP,
	BSS_SECTION_ASM_OP, SHARED_BSS_SECTION_ASM_OP, INIT_SECTION_ASM_OP,
	ASM_BYTE_OP, FINI_SECTION_ASM_OP, EH_FRAME_SECTION_ASM_OP,
	ASM_STABS_OP, ASM_STABD_OP, ASM_STABN_OP).
	Fix typos in description for LONG_LONG_TYPE_SIZE and
	FINI_SECTION_ASM_OP.
	* crtstuff.c (CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP): Explain
	why these defaults don't have leading spacing.
	* dbxout.c (ASM_STABS_OP, ASM_STABN_OP): Here.
	* dwarf2out.c (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
	UNALIGNED_DOUBLE_INT_ASM_OP, SECTION_ASM_OP, ASM_BYTE_OP): Here.
	* dwarfout.c (FILE_ASM_OP, VERSION_ASM_OP,
 	UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP, ASM_BYTE_OP,
	PUSHSECTION_ASM_OP, POPSECTION_ASM_OP): Here.
	* defaults.h (ASM_STABD_OP, EH_FRAME_SECTION_ASM_OP): Here.
	* varasm.c (ASM_STABS_OP): Here.
	* xcoffout.h (ASM_STABS_OP): Here.
	* config/elfos.h (IDENT_ASM_OP, ASM_BYTE_OP, SET_ASM_OP,
	SKIP_ASM_OP, ALIGN_ASM_OP, COMMON_ASM_OP, LOCAL_ASM_OP,
	INT_ASM_OP, ASCII_DATA_ASM_OP, TYPE_ASM_OP, SIZE_ASM_OP,
	STRING_ASM_OP): Here.
	* config/freebsd.h (IDENT_ASM_OP): Here.
	* config/linux-aout.h (SET_ASM_OP): Here.
	* config/linux.h (SET_ASM_OP): Here.
	* config/lynx.h (CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP,
	INT_ASM_OP): Here.
	* config/netbsd.h (TYPE_ASM_OP, SIZE_ASM_OP, SET_ASM_OP): Here.
	* config/nextstep.h (EH_FRAME_SECTION_ASM_OP, ALIGN_ASM_OP): Here.
	* config/openbsd.h (TYPE_ASM_OP, SIZE_ASM_OP, SET_ASM_OP): Here.
	* config/psos.h (CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP,
	INT_ASM_OP): Here.
	* config/ptx4.h (IDENT_ASM_OP, ASM_BYTE_OP, SET_ASM_OP,
	SKIP_ASM_OP, ALIGN_ASM_OP, COMMON_ASM_OP, LOCAL_ASM_OP,
	INT_ASM_OP, ASCII_DATA_ASM_OP, CONST_SECTION_ASM_OP,
	CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP, INIT_SECTION_ASM_OP,
	FINI_SECTION_ASM_OP, TYPE_ASM_OP, SIZE_ASM_OP STRING_ASM_OP): Here.
	* config/svr3.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP,
	CONST_SECTION_ASM_OP, ASM_BYTE_OP): Here.
	* config/a29k/udi.h (INT_ASM_OP): Here.
	* config/alpha/alpha-interix.h (CONST_SECTION_ASM_OP,
	CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP, INT_ASM_OP,
	SET_ASM_OP): Here.
	* config/alpha/alpha.h (TEXT_SECTION_ASM_OP,
	READONLY_DATA_SECTION_ASM_OP, DATA_SECTION_ASM_OP,
	UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
	UNALIGNED_DOUBLE_INT_ASM_OP, ASM_STABS_OP, ASM_STABN_OP,
	ASM_STABD_OP): Here.
	* config/alpha/elf.h (IDENT_ASM_OP, SKIP_ASM_OP, ALIGN_ASM_OP,
	COMMON_ASM_OP, INT_ASM_OP, ASCII_DATA_ASM_OP,
	CONST_SECTION_ASM_OP, CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP,
	BSS_SECTION_ASM_OP, SBSS_SECTION_ASM_OP, SDATA_SECTION_ASM_OP,
	INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP, TYPE_ASM_OP,
	SIZE_ASM_OP, STRING_ASM_OP): Here.
	* config/alpha/vms.h (LINK_SECTION_ASM_OP,
	READONLY_SECTION_ASM_OP, LITERALS_SECTION_ASM_OP,
	CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP, COMMON_ASM_OP): Here.
	* config/arc/arc.h (ASM_BYTE_OP, SET_ASM_OP): Here.
	(PUSHSECTION_ASM_OP): Define this, not PUSHSECTION_FORMAT.
	* config/arm/aof.h (CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP):
	Here.
	* config/arm/aout.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP,
	BSS_SECTION_ASM_OP, SET_ASM_OP): Here.
	* config/arm/coff.h (INT_ASM_OP): Here.
	* config/arm/conix-elf.h (UNALIGNED_WORD_ASM_OP): Here.
	* config/arm/elf.h (TYPE_ASM_OP, SIZE_ASM_OP, INT_ASM_OP): Here.
	* config/arm/linux-elf.h (IDENT_ASM_OP, CONST_SECTION_ASM_OP,
	INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP): Here.
	* config/arm/unknown-elf.h (UNALIGNED_WORD_ASM_OP): Here.
	* config/avr/avr.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP,
	ASM_BYTE_OP, TYPE_ASM_OP, SIZE_ASM_OP, WEAK_ASM_OP,
	STRING_ASM_OP): Here.  Update documentation copy in comments.
	* config/c4x/c4x.h (ASM_STABS_OP, BSS_SECTION_ASM_OP): Here.
	* config/clipper/clipper.h (TEXT_SECTION_ASM_OP,
	DATA_SECTION_ASM_OP): Here.
	* config/clipper/clix.h (BSS_SECTION_ASM_OP, INIT_SECTION_ASM_OP):
	Here.
	* config/convex/convex.h (TEXT_SECTION_ASM_OP,
	DATA_SECTION_ASM_OP, BSS_SECTION_ASM_OP): Here.
	* config/d30v/d30v.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP,
	BSS_SECTION_ASM_OP): Here.
	* config/fr30/fr30.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP,
	BSS_SECTION_ASM_OP): Here.
	* config/fx80/fx80.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP):
	Here.
	* config/gmicro/gmicro.h (TEXT_SECTION_ASM_OP,
	DATA_SECTION_ASM_OP, BSS_SECTION_ASM_OP): Here.
	* config/h8300/h8300.h (ASM_WORD_OP): Here.
	* config/i370/i370.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP,
	BSS_SECTION_ASM_OP): Here.
	* config/i386/aix386.h (INIT_SECTION_ASM_OP): Here.
	* config/i386/bsd.h (ASM_BYTE_OP): Here.
	* config/i386/cygwin.h (SET_ASM_OP, INT_ASM_OP): Here.
	* config/i386/dgux.h (CONST_SECTION_ASM_OP): Here.
	* config/i386/djgpp.h (IDENT_ASM_OP, INT_ASM_OP, SET_ASM_OP):
	Here.
	* config/i386/freebsd-elf.h (SET_ASM_OP): Here.
	* config/i386/freebsd.h (TYPE_ASM_OP, SIZE_ASM_OP, INT_ASM_OP):
	Here.
	* config/i386/i386-coff.h (CTORS_SECTION_ASM_OP,
	DTORS_SECTION_ASM_OP, INT_ASM_OP): Here.
	* config/i386/i386-interix.h (STRING_ASM_OP, CONST_SECTION_ASM_OP,
	CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP, INT_ASM_OP,
	SET_ASM_OP): Here.
	* config/i386/i386elf.h (BSS_SECTION_ASM_OP): Here.
	* config/i386/netbsd.h (INT_ASM_OP): Here.
	* config/i386/openbsd.h (INT_ASM_OP): Here.
	* config/i386/osfrose.h (TYPE_ASM_OP, SIZE_ASM_OP, SET_ASM_OP,
	IDENT_ASM_OP): Here.
	* config/i386/sco5.h (ALIGN_ASM_OP, ASCII_DATA_ASM_OP,
	ASM_BYTE_OP, IDENT_ASM_OP, COMMON_ASM_OP, SET_ASM_OP,
	LOCAL_ASM_OP, INT_ASM_OP, TYPE_ASM_OP, SIZE_ASM_OP, STRING_ASM_OP,
	SKIP_ASM_OP, GLOBAL_ASM_OP): Here.
	* config/i386/seq-sysv3.h (SHARED_SECTION_ASM_OP,
	SHARED_BSS_SECTION_ASM_OP): Here.
	* config/i386/sequent.h (SHARED_SECTION_ASM_OP): Here.
	* config/i386/sun386.h (ASM_BYTE_OP, TEXT_SECTION_ASM_OP,
	DATA_SECTION_ASM_OP): Here.
	* config/i386/svr3gas.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP,
	CONST_SECTION_ASM_OP): Here.
	* config/i386/sysv3.h (INIT_SECTION_ASM_OP): Here.
	* config/i386/unix.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP,
	BSS_SECTION_ASM_OP): Here.
	* config/i860/bsd-gas.h (ASCII_DATA_ASM_OP): Here.
	* config/i860/bsd.h (ASCII_DATA_ASM_OP): Here.
	* config/i860/fx2800.h (ASM_STABS_OP, ASM_STABN_OP, ASM_STABD_OP,
	BSS_ASM_OP): Here, but use trailing spaces.
	* config/i860/i860.h (ASM_BYTE_OP, TEXT_SECTION_ASM_OP,
	DATA_SECTION_ASM_OP): Here.
	* config/i860/paragon.h (ASCII_DATA_ASM_OP, BSS_SECTION_ASM_OP):
	Here.
	* config/i860/sysv3.h (ASCII_DATA_ASM_OP, CTORS_SECTION_ASM_OP,
	DTORS_SECTION_ASM_OP, TDESC_SECTION_ASM_OP): Here.
	* config/i860/sysv4.h (CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP,
	TDESC_SECTION_ASM_OP): Here.
	* config/i960/i960-coff.h (CTORS_SECTION_ASM_OP,
	DTORS_SECTION_ASM_OP, INT_ASM_OP): Here.
	* config/i960/i960.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP):
	Here.
	* config/ia64/ia64.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP,
	BSS_SECTION_ASM_OP, EH_FRAME_SECTION_ASM_OP,
	UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
	UNALIGNED_DOUBLE_INT_ASM_OP): Here.
	* config/ia64/sysv4.h (ASM_BYTE_OP, STRING_ASM_OP, SKIP_ASM_OP,
	COMMON_ASM_OP, ASCII_DATA_ASM_OP, INIT_SECTION_ASM_OP,
	FINI_SECTION_ASM_OP, CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP,
	SDATA_SECTION_ASM_OP, SBSS_SECTION_ASM_OP): Here.
	* config/m32r/m32r.h (SCOMMON_ASM_OP): Here.
	* config/m68hc11/m68hc11.h (GLOBAL_ASM_OP): Here.
	* config/m68k/auxas.h (BYTE_ASM_OP, WORD_ASM_OP, LONG_ASM_OP,
	SPACE_ASM_OP, ALIGN_ASM_OP, GLOBAL_ASM_OP, SWBEG_ASM_OP,
	SET_ASM_OP): Here.
	* config/m68k/coff.h (BSS_SECTION_ASM_OP, CTORS_SECTION_ASM_OP,
	DTORS_SECTION_ASM_OP, INT_ASM_OP): Here.
	* config/m68k/crds.h (BSS_SECTION_ASM_OP): Here.
	* config/m68k/dpx2.h (ASM_BYTE_OP, GLOBAL_ASM_OP): Here.
	* config/m68k/hp320.h (ASCII_DATA_ASM_OP, GLOBAL_ASM_OP): Here.
	* config/m68k/linux.h (BSS_SECTION_ASM_OP): Here.
	* config/m68k/lynx.h (BSS_SECTION_ASM_OP): Here.
	* config/m68k/m68k.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP,
	GLOBAL_ASM_OP): Here.
	* config/m68k/m68kelf.h (SWBEG_ASM_OP, BSS_ASM_OP,
	BSS_SECTION_ASM_OP): Here.
	* config/m68k/m68kv4.h (BSS_ASM_OP): Here.
	* config/m68k/mot3300.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP,
	ASCII_DATA_ASM_OP, SET_ASM_OP, CTORS_SECTION_ASM_OP,
	DTORS_SECTION_ASM_OP, GLOBAL_ASM_OP, ASM_BYTE_OP, ALIGN_ASM_OP,
	SKIP_ASM_OP): Here.
	* config/m68k/newsgas.h (SET_ASM_OP): Here.
	* config/m68k/rtemself.h (INIT_SECTION_ASM_OP,
	FINI_SECTION_ASM_OP, EH_FRAME_SECTION_ASM_OP): Here.
	* config/m68k/sgs.h (BYTE_ASM_OP, WORD_ASM_OP, LONG_ASM_OP,
	SPACE_ASM_OP, ALIGN_ASM_OP, GLOBAL_ASM_OP, SWBEG_ASM_OP,
	SET_ASM_OP, UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP): Here,
	but use trailing spaces.
	* config/m68k/tower-as.h (TEXT_SECTION_ASM_OP,
	DATA_SECTION_ASM_OP, GLOBAL_ASM_OP, INIT_SECTION_ASM_OP,
	FINI_SECTION_ASM_OP, CONST_SECTION_ASM_OP, BSS_SECTION_ASM_OP):
	Here.
	* config/m88k/dgux.h (FINI_SECTION_ASM_OP, INIT_SECTION_ASM_OP,
	CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP): Here.
	* config/m88k/m88k.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP,
	CONST_SECTION_ASM_OP, TDESC_SECTION_ASM_OP, CTORS_SECTION_ASM_OP,
	DTORS_SECTION_ASM_OP, INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP,
	IDENT_ASM_OP, FILE_ASM_OP, SECTION_ASM_OP, SET_ASM_OP,
	GLOBAL_ASM_OP, ALIGN_ASM_OP, SKIP_ASM_OP, COMMON_ASM_OP,
	BSS_ASM_OP, FLOAT_ASM_OP, DOUBLE_ASM_OP, INT_ASM_OP, SHORT_ASM_OP,
	CHAR_ASM_OP, ASCII_DATA_ASM_OP, SBSS_ASM_OP, SCOMM_ASM_OP,
	SDATA_SECTION_ASM_OP, TYPE_ASM_OP, SIZE_ASM_OP, INTERNAL_ASM_OP,
	VERSION_ASM_OP, UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
	PUSHSECTION_ASM_OP, POPSECTION_ASM_OP, REQUIRES_88110_ASM_OP,
	ASM_BYTE_OP): Here.
	* config/m88k/openbsd.h (SET_ASM_OP): Here.
	* config/m88k/sysv4.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP,
	CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP): Here.
	* config/mcore/mcore-elf.h (UNALIGNED_INT_ASM_OP,
	UNALIGNED_SHORT_ASM_OP, CTORS_SECTION_ASM_OP,
	DTORS_SECTION_ASM_OP): Here.
	* config/mcore/mcore-pe.h (CTORS_SECTION_ASM_OP,
	DTORS_SECTION_ASM_OP, INT_ASM_OP): Here.
	* config/mips/elf.h (TYPE_ASM_OP, SIZE_ASM_OP,
	BSS_SECTION_ASM_OP): Here.
	* config/mips/elf64.h (TYPE_ASM_OP, SIZE_ASM_OP): Here.
	* config/mips/iris5.h (ABICALLS_ASM_OP): Here.
	* config/mips/iris6.h (TYPE_ASM_OP, SIZE_ASM_OP,
	POPSECTION_ASM_OP, BSS_SECTION_ASM_OP, CONST_SECTION_ASM_OP_32,
	CONST_SECTION_ASM_OP_64, CTORS_SECTION_ASM_OP,
	DTORS_SECTION_ASM_OP, EH_FRAME_SECTION_ASM_OP): Here.
	* config/mips/mips.c (ABICALLS_ASM_OP): Here.
	* config/mips/mips.h (ASM_STABS_OP, ASM_STABN_OP, ASM_STABD_OP):
	Here.
	* config/mips/netbsd.h (TYPE_ASM_OP, SIZE_ASM_OP, WEAK_ASM_OP):
	Here.
	* config/mips/osfrose.h (SET_ASM_OP): Here.
	* config/mips/sni-svr4.h (ABICALLS_ASM_OP): Here.
	* config/ns32k/encore.h (SHARED_SECTION_ASM_OP): Here.
	* config/ns32k/merlin.h (SHARED_SECTION_ASM_OP): Here.
	* config/ns32k/ns32k.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP):
	Here.
	* config/ns32k/sequent.h (SHARED_SECTION_ASM_OP): Here.
	* config/ns32k/tek6000.h (SHARED_SECTION_ASM_OP): Here.
	* config/pa/pa-64.h (INT_ASM_OP, TYPE_ASM_OP, SIZE_ASM_OP): Here.
	* config/pa/pa.h (ASM_STABS_OP, ASM_STABN_OP): Here.
	* config/pj/pj.h (SET_ASM_OP, BSS_SECTION_ASM_OP): Here.
	* config/pyr/pyr.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP):
	Here.
	* config/romp/romp.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP):
	Here.
	* config/rs6000/rs6000.h (SET_ASM_OP): Here.
	* config/rs6000/sol2.h (ASM_STABN_OP): Here.
	* config/rs6000/sysv4.h (SKIP_ASM_OP, LOCAL_ASM_OP, LCOMM_ASM_OP):
	Here.
	* config/sh/sh.h (SET_ASM_OP, BSS_SECTION_ASM_OP,
	UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP): Here.
	* config/sparc/linux.h (COMMON_ASM_OP): Here.
	* config/sparc/linux64.h (COMMON_ASM_OP,
	UNALIGNED_DOUBLE_INT_ASM_OP): Here.
	* config/sparc/litecoff.h (BSS_SECTION_ASM_OP,
	CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP, INT_ASM_OP): Here.
	* config/sparc/lynx.h (BSS_SECTION_ASM_OP): Here.
	* config/sparc/pbd.h (ASM_INT_OP): Here.
	* config/sparc/sp64-elf.h (UNALIGNED_LONGLONG_ASM_OP): Here.
	* config/sparc/sparc.h (ASM_BYTE_OP, TEXT_SECTION_ASM_OP,
	DATA_SECTION_ASM_OP, IDENT_ASM_OP): Here.
	* config/sparc/sun4gas.h (UNALIGNED_DOUBLE_INT_ASM_OP,
	UNALIGNED_INT_ASM_OP, UNALIGNED_SHORT_ASM_OP): Here.
	* config/sparc/sysv4.h (STRING_ASM_OP, COMMON_ASM_OP, SKIP_ASM_OP,
	UNALIGNED_DOUBLE_INT_ASM_OP, UNALIGNED_INT_ASM_OP,
	UNALIGNED_SHORT_ASM_OP, PUSHSECTION_ASM_OP, POPSECTION_ASM_OP,
	TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP, BSS_SECTION_ASM_OP,
	CONST_SECTION_ASM_OP, INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP,
	CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP,
	EH_FRAME_SECTION_ASM_OP): Here.
	* config/sparc/vxsim.h (COMMON_ASM_OP): Here.
	* config/spur/spur.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP):
	Here.
	* config/tahoe/tahoe.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP):
	Here.
	* config/v850/v850.h (SCOMMON_ASM_OP, ZCOMMON_ASM_OP,
	TCOMMON_ASM_OP): Here.
	* config/vax/vax.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP):
	Here.
	* config/we32k/we32k.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP,
	ASM_BYTE_OP): Here.

2000-09-25  Richard Henderson  <rth@cygnus.com>

	* expmed.c (store_bit_field): Adjust last change to not consider
	any word-sized field naturally aligned.

2000-09-24  Richard Henderson  <rth@cygnus.com>

	* config/alpha/alpha.c (alpha_emit_conditional_branch): Handle
	TFmode unordered compares properly.  Revalidate integer compare
	operands.
	(alpha_emit_setcc): New.
	(alpha_emit_conditional_move): Revalidate integer compare operands.
	* config/alpha/alpha-protos.h: Update.
	* config/alpha/alpha.md (cmpdi): Allow general operands.
	(sne): Use alpha_emit_setcc.
	(seq, slt, sle, sgt, sge, sltu, sleu, sgtu, sgeu): Likewise.
	(sunordered, sordered): New.

2000-09-24  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64-protos.h: Update.
	* config/ia64/ia64.c (call_multiple_values_operation): Remove.
	(ia64_expand_call): New.
	(ia64_expand_prologue): Emit an alloc if we need extra input
	registers.
	(ia64_expand_epilogue): New arg sibcall_p; don't emit the return
	instruction if true.
	(struct reg_flags): Add is_sibcall.
	(rtx_needs_barrier): A sibcall does not use CFM et al.  Ignore USEs.
	(emit_insn_group_barriers): Set flags.is_sibcall.  Remove hacks
	for CODE_FOR_gr_spill_internal/CODE_FOR_gr_restore_internal.
	* config/ia64/ia64.h (PREDICATE_CODES): Update.
	* config/ia64/ia64.md (call): Use ia64_expand_call.
	(call_value): Likewise.
	(sibcall, sibcall_value): New.
	(call patterns): Remove extra expanders; tidy.
	(sibcall_epilogue): New.
	(set_bsp): Remove the extra USE.  Put the operand inside the UNSPEC.

2000-09-24  Richard Henderson  <rth@cygnus.com>

	* emit-rtl.c (gen_lowpart_common): Use trunc_int_for_mode.

	* sibcall.c (skip_pic_restore): New.
	(identify_call_return_value): Use it.

2000-09-24  Mark Mitchell  <mark@codesourcery.com>

	* c-tree.texi: Moved here from cp/ir.texi.  Documented nested
	functions.  Generalize to handle both C and C++.
	* Makefile.in (c-tree.info): New target.
	(info): Add c-tree.info.
	
Sun Sep 24 09:15:48 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* expr.c (store_field): If BITSIZE is negative, use size of type.
	(expand_expr, case COMPONENT_EXPR): Likewise.

Sun 24-Sep-2000 11:40:23 BST  Neil Booth  <NeilB@earthling.net>

	* cpplex.c: Update TODO comment.
	* cpplib.c (do_error, do_warning): Merge common code of
	do_error and do_warning	into do_diagnostic.  Use it.
	(do_diagnostic): New function.
	* cpplib.h: Fix comment typo.

2000-09-24  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (check_format_info): Warn for a wide character string
	used as a non-wide format argument.

2000-09-24  Joseph S. Myers  <jsm28@cam.ac.uk>

	* builtins.def (BUILT_IN_LLABS): Add.
	* builtins.c (expand_builtin): Also abort on BUILT_IN_LLABS.
	* c-common.c (c_common_nodes_builtins): Create builtin functions
	__builtin_llabs, and plain llabs unless no_nonansi_builtins
	outside of C99 mode.
	(expand_tree_builtin): Handle BUILT_IN_LLABS.

Sat 23-Sep-2000 22:39:18 BST  Neil Booth  <NeilB@earthling.net>

	* cpphash.h (CPP_RESERVE, CPP_PUTS_Q, CPP_PUTS, CPP_PUTC_Q,
	CPP_PUTC, DUMMY_TOKEN, NO_DUMMY_TOKEN): Delete.
	* cpplex.c (_cpp_expand_token_space, _cpp_init_toklist,
	_cpp_free_toklist): No need to worry about extra dummy token
	at the start of token lists any more.
	(trigraph_ok): Only warn outside comments.
	(skip_block_comment): Set and clear lexing_comment.
	(skip_line_comment): Take a cpp_reader not cpp_buffer.
	Set and clear lexing_comment.
	(parse_number): Handle leading '.' indicated by pfile->seen_dot.
	(check_long_token): Delete.
	(lex_percent, lex_dot): New subroutines of lex_token to
	handle lexing of '.' and '%' without lookback.
	(lex_token): Use lex_dot and lex_percent.
	(lex_line): Don't check for LIST_OFFSET.
	(_cpp_init_input_buffer): Update for new _cpp_init_toklist.
	* cpplib.c (_cpp_parse_assertion): Similarly.
	(cpp_push_buffer): Initialize extra_char.
	* cpplib.h (LIST_OFFSET): Delete.
	(struct cpp_buffer): New member extra_char.
	(struct lexer_state): New members lexing_comment and seen_dot.

2000-09-23  Jason Merrill  <jason@redhat.com>

	* config/rs6000/x-aix41 (CLIB): Define here.
	* config/rs6000/t-aix43: Not here.
	* config/rs6000/t-aix41: Or here.  Remove.
	* configure.in: Don't use it.

2000-09-22  Jason Merrill  <jason@redhat.com>

	* configure.in: Add test for HAVE_LD_DWARF_LINKONCE.
	* toplev.c: Use it to initialize flag_eliminate_dwarf2dups.
	* config.in: Regenerate.

	* configure.in: Fix checks for assembler features when using a
	one-tree assembler that has not yet been built.
	Fix --disable-threads.

2000-09-19  Geoff Keating  <geoffk@cygnus.com>

	* stmt.c (expand_asm_operands): Allow # in constraints.

2000-09-22  Jason Merrill  <jason@redhat.com>

	* c-lex.c (skip_white_space): Just treat CRs as horizontal whitespace.

	* dbxout.c (dbxout_symbol_name): Just use DECL_NAME for
	function-local names.

2000-09-22  Brad Lucier <lucier@math.purdue.edu>
	    Mark Mitchell  <mark@codesourcery.com>

        * toplev.c (warn_disabled_optimization): Declare new warning flag.
        * flags.h (warn_disabled_optimization): Add it here.
        * gcse.c (gcse_main): Add warning when disabled.
        * invoke.texi: Document -Wdisabled-optimization.

2000-09-21  Jason Merrill  <jason@redhat.com>

	* dwarf2out.c (add_const_value_attribute): Multiply by length, not 4.

	* dwarf2out.c (tree_add_const_value_attribute): New fn.
	(gen_variable_die): Call it for non-definitions.

	* dwarf2out.c (die_struct): Add die_mark field.
	(mark_dies, unmark_dies): New fns.
	(clear_die_sizes): Remove.
	(print_die): Check die_symbol rather than die_offset.
	(build_abbrev_table, output_pubnames, output_aranges): Check
	die_mark rather than die_offset.
	(output_comp_unit): Move calc_die_sizes after build_abbrev_table.
	Call mark_dies.

Thu 21-Sep-2000 18:19:05 BST  Neil Booth  <NeilB@earthling.net>

	* cppfiles.c (lookup_include_file): Rename to open_file.
	Always create a splay tree value, even on syscall failures.
	Negative entries indicated by fd == -2.
	Re-open files closed in the meantime.
	(_cpp_fake_include): Create a negative splay tree entry.
	(find_include_file, cpp_read_file): Update for function name
	change.
	* gcc.gd/cpp/mi4.c: Testcase.

2000-09-21  Nick Clifton  <nickc@redhat.com>

	* config/arm/t-arm-elf (MULTILIB_DIRNAMES): Enable multilibs for
	ARM and THUMB modes.

	* config/mcore/mcore.c: Fix compile time warnings.
	* config/mcore/mcore-protos.h: Fix compile time warnings. 

2000-09-20  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* configure.in: Correct test of gcc_cv_glibc.
	* configure: Rebuilt.
	* config.in: Rebuilt.

2000-09-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* builtins.c (expand_builtin_fputs): Also expand when length!=1.
	(expand_builtin): Handle BUILT_IN_FWRITE.

	* builtins.def (BUILT_IN_FWRITE): New entry.

	* c-common.c (c_common_nodes_and_builtins): Declare __builtin_fwrite.

Wed Sep 20 15:39:14 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* gcc.c (modify_target): New variable and struct.
	(process_command): Handle MODIFY_TARGET_NAME.
	* tm.texi (MODIFY_TARGET_NAME): Add documentation for new macro.
	* config/pa/pa.h (MODIFY_TARGET_NAME): New macro.

	* c-decl.c (finish_decl): Add else's to avoid referencing
	TYPE_DOMAIN of an ERROR_MARK.

Wed Sep 20 21:44:31 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.c (adjust_insn_length): Adjust lengths of
	`reload_in*' insns.

2000-09-19  Marek Michalkiewicz  <marekm@linux.org.pl>

	* config/avr/avr.md (neghi2): Add alternative for input and output
	operands in different registers, as in negsi2.
	(*negsi2): Remove '*' from the name.  Use "movw" if available.

2000-09-19  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/crtbegin.asm (__dso_handle): Delete use of
	HAVE_GAS_HIDDEN macro.

Tue 19-Sep-2000 22:38:57 BST  Neil Booth  <NeilB@earthling.net>

	* cpplex.c (lex_line): Drop the EOF token for unknown
	directives in assembler.

2000-09-19  David Edelsohn  <edelsohn@gnu.org>

	* configure.in: Allow enable_threads_flag value of "aix".  Define
	thread_file as "aix" for AIX 4.3 and above.
	* configure: Regenerated.

	* gthr-aix.h: New file.

	* rs6000/t-aix43: Replace soft-float multilib with pthread.
	Remove 403 processor multilib match.  Fix rios2 processor multilib
	match.

	* rs6000/aix.h (ASM_DECLARE_FUNCTION_NAME): Use function_section
	to return to appropriate csect.

2000-09-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* builtins.c (is_valid_printf_arglist, expand_builtin_printf): New
	functions.
	(expand_builtin_fputs): Set `target' parameter for `expand_expr'.
	(expand_builtin): Handle BUILT_IN_PUTCHAR, BUILT_IN_PUTS and
	BUILT_IN_PRINTF.

	* builtins.def (BUILT_IN_PUTCHAR, BUILT_IN_PUTS, BUILT_IN_PRINTF):
	New entries.

	* c-common.c (init_function_format_info): Handle __builtin_printf.
	Set `check_function_format_ptr'.
	(c_common_nodes_and_builtins): Set `puts_ftype' and
	`printf_ftype'.  Declare __builtin_putchar, __builtin_puts,
	__builtin_printf and printf.

	* tree.c, tree.h (check_function_format_ptr): Declare.

Tue 19-Sep-2000 18:26:57 BST  Neil Booth  <NeilB@earthling.net>

        * cppfiles.c (read_include_file): Take no special action for
	zero-length files.

2000-09-19  Bernd Schmidt  <bernds@redhat.co.uk>

	* final.c (insn_current_reference_address): Use INSN_SHUID of seq
	rather than that of branch.
	(shorten_branches): Don't increment insn_current_address twice.

	Undo most of the Wed Jan 27 23:39:53 1999 patch:
	* loop.h (struct induction): Delete members derived, ix and last_use.
	(struct loop_ivs): Delete members first_increment_giv and
	last_increment_giv.
	* loop.c (verify_dominator, find_life_end, cmp_recombine_givs_stats,
	recombine_givs): Delete functions.
	(find_and_verify_loops): Don't initialize cont_dominator.
	(strength_reduce): Lose code to try to find bivs that can be
	expressed as givs of another biv, and to convert biv increments
	into givs.
	Lose loop_scan_start variable, always use loop->scan_start.
	Don't call recombine_givs.  Don't handle derived givs.
	(record_giv): Don't initialize derived and last_use fields.
	(biv_eliminiation_giv_has_0_offset): Lose code to handle derived
	givs.
	* unroll.c (derived_regs): Delete static variable.
	(unroll_loop): Don't initialize it.
	(copy_loop_body): Lose code to handle derived givs.
	(find_splittable_givs): Don't check for givs made from biv
	increments.
	Don't set derived_regs.

	Fix misapplied earlier patch:
	* config/sh/sh.md (floatsisf_ie): Reenable.  Remove explicit reference
	to fpul.
	(floatsisf2): Generate floatsisf_ie by default.
	(floatsisf_i4): Conditional on TARGET_SH4.

	(floatsisf2, floatsidf2, extendsfdf2): Also use reg_no_subreg_operand
	predicate for the expanders.

2000-09-19  Richard Henderson  <rth@cygnus.com>

	* config/i386/i386.h (CPP_CPU_SPEC): Define i586 and i686 symbols
	in addition to pentium and pentiumpro symbols.
	(CPP_CPU_DEFAULT_SPEC): Likewise.

	* c-typeck.c (c_expand_asm_operands): Restore the output tree
	after expanding.

	* stmt.c (expand_expr_stmt): Only call warn_if_unused_value
	if the tree has side effects.
	(warn_if_unused_value): Do not warn about void constructs.

	* c-decl.c (poplevel): Invoke warn_about_unused_variables.

	* unroll.c (copy_loop_body): Update LABEL_NUSES before
	calling invert_jump.

2000-09-18  Geoff Keating  <geoffk@cygnus.com>

	* combine.c (can_combine_p): Don't substitute an ASM_OPERANDS
	into anything.

2000-09-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* Makefile.in (c-common.o): Depend on diagnostic.h.

	* c-common.c: Include diagnostic.h.
	(tfaff): Delete.
	(status_warning): New function.
	(check_format_info, maybe_read_dollar_number, check_format_types,
	finish_dollar_format_checking, check_function_format): Accept a
	`status' parameter.  All callers changed.

	* c-common.h (check_function_format): Accept a `status' parameter.

	* c-typeck.c: Update call to `check_function_format'.

2000-09-18  Richard Henderson  <rth@cygnus.com>

	* c-decl.c (c_expand_body): Call mark_varargs before
	expand_function_start.

2000-09-18  Geoff Keating  <geoffk@cygnus.com>

	* config/rs6000/eabi-cn.asm: Use /**/ to delimit comments, not #.
	* config/rs6000/eabi-ci.asm: Likewise.

2000-09-18  Richard Henderson  <rth@cygnus.com>

	* emit-rtl.c (init_emit_once): Initialize const_tiny_rtx
	for BImode.

2000-09-18  Jim Wilson  <wilson@cygnus.com>

	* unroll.c (loop_iterations): Pass increment to extend_for_giv_value
	before passing it to fold_rtx_mult_add.

	* unroll.c (final_giv_value): Pass increment through
	extend_value_for_giv before passing it to emit_iv_add_mult.

	* function.c (fixup_var_refs_1, case ZERO_EXTRACT): If we have a
	paradoxical subreg, then directly substitute the replacement and
	return.

Mon 18-Sep-2000 22:12:44 BST  Neil Booth  <NeilB@earthling.net>

	* cpp.texi: Update documentation, including some clarifications,
	the treatment of various newline combinations, and space between
	backslash and newline.

Mon Sep 18 21:00:47 2000  J"orn Rennecke <amylaar@redhat.co.uk>

	* sdbout.c (PUT_SDB_DEF, PUT_SDB_TAG, PUT_SDB_EPILOGUE_END):
	Replace ASM_OUTPUT_LABELREF with assemble_name.

Mon Sep 18 20:26:50 2000  J"orn Rennecke <amylaar@redhat.co.uk>

	* sh.c (addsubcosts): CONST is not cheap.
	(find_barrier): For Sh1, take alignment after jumps into account.

2000-09-15  Andrew Haley  <aph@redhat.com>

	* toplev.c (rest_of_compilation): Call purge_hard_subreg_sets to
	remove all SETs of SUBREGs of hard registers.
	* function.c (purge_hard_subreg_sets): New function.
	(purge_single_hard_subreg_set): New function.
	* rtl.h: (purge_hard_subreg_sets): New function.

2000-09-18  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64-protos.h: Update.
	* config/ia64/ia64.c (signed_inequality_operator): New.
	(ia64_expand_compare): New.
	(ia64_register_move_cost): Handle PR_REGS moves.
	(ia64_secondary_reload_class): Require a GR when moving to a PR.
	(struct reg_write_state): Add written_by_and/or.
	(struct reg_flags): Add is_and/or.
	(rws_update): Set them.
	(rws_access_regno): Test them to allow parallel comparisons.
	(rtx_needs_barrier): Recognize parallel comparisons.
	(emit_insn_group_barriers): Set prev_insn after a call stop bit.
	Call recog_memoized; ignore pred_rel_mutex.
	(emit_predicate_relation_info): Don't call find_basic_blocks here.
	(ia64_reorg): Do it here instead.
	* config/ia64/ia64.h: s/CCmode/BImode/g
	(MODES_TIEABLE_P): Don't tie BImode.
	(PREFERRED_RELOAD_CLASS): Do not reload operations into AR regs.
	(CONST_COSTS): Pick sensible values for CONST_INT based on context.
	(RTX_COSTS): Make multiply 4 insns.
	(MEMORY_MOVE_COST): New.
	(PREDICATE_CODES): Update.
	* config/ia64/ia64.md: s/CCmode/BImode/g
	(movcci, movbi): New.
	(andbi3, andcmbi3, iorbi3, iorcmbi3, one_cmplbi2): New.
	(cmpsi_and_0, cmpsi_and_1, cmpsi_andnot_0, cmpsi_andnot_1): New.
	(cmpdi_and_0, cmpdi_and_1, cmpdi_andnot_0, cmpdi_andnot_1): New.
	(tbit_and_0, tbit_and_1, tbit_and_2, tbit_and_3): New.
	(cmpsi_or_0, cmpsi_or_1, cmpsi_orcm_0, cmpsi_orcm_1): New.
	(cmpdi_or_0, cmpdi_or_1, cmpdi_orcm_0, cmpdi_orcm_1): New.
	(tbit_or_0, tbit_or_1, tbit_or_2, tbit_or_3): New.
	(mulsi, muldi): Use xmpy not xma.
	(cmpbi): New.
	(movcc, movcc_internal): Remove.
	(branch expanders): Use ia64_expand_compare.
	(setcc expanders): Likewise.
	(cmov insns): Use move_operand and ia64_move_ok.
	(pred_rel_mutex): Use unspec not unspec_volatile.  Prevent the
	scheduler from moving it past a use.
	* config/ia64/build.hacks: Remove.

Mon 18-Sep-2000 19:21:35 BST  Neil Booth  <NeilB@earthling.net>

	* cpphash.h (HASHSTEP): Take character rather than pointer
	to character.
	(_cpp_check_directive, _cpp_check_linemarker): Update prototypes.

	* cpphash.c (cpp_loookup): Update for new HASHSTEP.

	* cpplex.c (auto_expand_name_space, trigraph_replace,
	backslash_start, handle_newline, parse_name, INIT_TOKEN_STR,
	IMMED_TOKEN, PREV_TOKEN_TYPE, PUSH_TOKEN, REVISE_TOKEN,
	BACKUP_TOKEN, BACKUP_TRIGRAPH, MIGHT_BE_DIRECTIVE,
	KNOWN_DIRECTIVE): Delete.

	(handle_newline, check_long_token, skip_escaped_newlines,
	unterminated): New functions.
	(ACCEPT_CHAR, SAVE_STATE, RESTORE_STATE): New macros.

	(parse_identifier): Was parse_name, new implementation.
	(skip_line_comment, skip_block_comment, skip_whitespace,
	parse_number, parse_string, trigraph_ok, save_comment,
	adjust_column, _cpp_get_line): New implementations.

	(lex_token): New function.  Lexes a token at a time, looking
	forwards.  Contains most of the guts of the old lex_line.
	(lex_line): New implementation, using lex_token to obtain
	individual tokens.
	(cpp_scan_buffer): Use the token's line, not the list's line.

	* cpplib.c (_cpp_check_directive, _cpp_check_linemarker):
	 New implementations.
	(do_assert): Don't bother setting the answer's list's line.
	(cpp_push_buffer): Initialise new pfile and read_ahead members
	of struct cpp_buffer.

	* cpplib.h (cppchar_t): New typedef.
	(struct cpp_buffer): read_ahead, pfile and col_adjust are
	new members.
	(struct lexer_state): New structure that determines the state
	and behaviour of the lexer.
	(IN_DIRECTIVE, KNOWN_DIRECTIVE): New macros.
	(struct cpp_reader): New member "state". Rename
	multiline_string_line and multiline_string_column. Delete
	col_adjust, in_lex_line members.
	(CPP_BUF_COLUMN): Update.

2000-09-18  Richard Henderson  <rth@cygnus.com>

	* combine.c (simplify_comparison): Shift a NOT out of a single
	bit test.

	* combine.c (if_then_else_cond): Canonicalize BImode true to
	STORE_FLAG_VALUE.
	* explow.c (trunc_int_for_mode): Likewise.

	* combine.c (combine_simplify_rtx): Use gen_unary to distribute
	the NOT for De Morgan's rule.
	* simplify-rtx.c (simplify_unary_operation): Simplify a BImode NOT
	of a comparison to the reverse comparison.

	* combine.c (try_combine): Allow split to create a single insn.

	* machmode.def: Add BImode.  Add a column for bitsize.
	* machmode.h (DEF_MACHMODE): Adjust for extra column.
	(GET_MODE_BITSIZE): Use it.
	* rtl.c (DEF_MACHMODE): Adjust for extra column.
	(mode_bitsize): New.
	(mode_mask_array): Use bitsize.
	* combine.c (combine_simplify_rtx): Require inner and outer
	modes to match on nonzero_bits optimizations.

2000-09-18  Bernd Schmidt  <bernds@redhat.co.uk>

	* reload1.c (forget_old_reloads_1): If a hard reg is stored, clear
	its entry in spill_reg_store.
	* config/sh/lib1funcs.ams (movstr_i4 functions): Always compile in.
	* sh.c (reg_no_subreg_operand): New function.
	* sh-protos.h (reg_no_subreg_operand): Declare it.
	* sh.h (PREDICATE_CODES): Add it.
	* sh.md (floatsisf2_i4, floatsidf2_i, extendsfdf2_i4): Use it for
	input operand that needs to be in fpul.
	(fix_truncsfsi2, fix_truncsfsi2_i4): Use register_operand for output.
	* sh.c (find_barrier): Take into account that machine_dependent_reorg
	might add new insns.

2000-09-18  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.c (sh_expand_prologue): Mark GOTaddr2picreg as
	MAYBE_DEAD.
	(sh_expand_epilogue): Take the PIC register into account when
	computing the frame size.

	* config/sh/sh.c (nonpic_symbol_mentioned_p): Check LABEL_REFs.
	* config/sh/sh.md (sym_label2reg, symPLT_label2reg): Protect
	LABEL_REFs with a PIC-safe unspec.

2000-09-18  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (check_format_info): Properly save the argument
	number and parameter for $ operand number formats in case width
	and precision arguments are also used.  Allow printf width and
	precision arguments to have operand numbers even if none was
	specified for the main format, since this is OK for %*.*m.  Only
	object to missing $ operand number if the format used requires an
	argument.

2000-09-18  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (format_char_info): Add 'W' flag to comment.
	(print_char_table, scan_char_table): Use it.
	(check_format_info): Use the 'W' flag to determine whether a
	format argument is written into.

2000-09-18  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (check_format_types): Reorganise and clean up,
	checking earlier for ERROR_MARKs and making cur_type into its
	TYPE_MAIN_VARIANT where convenient.

2000-09-18  Joseph S. Myers  <jsm28@cam.ac.uk>

	* gcc.c (cpp_options): Add specs for __STDC_HOSTED__.

2000-09-18  Bernd Schmidt  <bernds@redhat.co.uk>

	* optabs.c (emit_libcall_block): Set CONST_CALL_P for the call.

	* i386-protos.h (ix86_init_builtins, ix86_expand_builtin): Declare.
	* i386.c (struct builtin_description): New.
	(bdesc_comi, bdesc_2arg, bdesc_1arg): New arrays.
	(mmx_reg_operand): Declare MODE arg as unused.
	(ix86_expand_sse_comi, ix86_expand_sse_compare, safe_vector_operand,
	ix86_expand_unop1_builtin, ix86_expand_unop_builtin,
	ix86_expand_binop_builtin, ix86_expand_store_builtin,
	ix86_init_builtins, ix86_expand_builtin): New functions.
	* i386.h (ix86_builtins): New enumeration.
	(MD_INIT_BUILTINS, MD_EXPAND_BUILTIN): New macros.
	* i386.md (attr length_immediate): 0 for mmx/sse types.
	(attr prefix_0f): 1 for mmx/sse types.
	(setcc_2): Remove "*" so we get gen_setcc_2.
	(emms): Account for changed register numbering.  Set "memory" attr
	to unknown.
	(sfence): Set "memory" attr to unknown.

2000-09-18  Andreas Jaeger  <aj@suse.de>

	* configure.in: Define _GNU_SOURCE only when using the GNU C
	Library.
	* configure: Regenerated.
	* config.in: Regenerated.

2000-09-17  Mark Mitchell  <mark@codesourcery.com>

	* cppinit.c (cpp_init): Don't use ANSI prototypes.
	* flow.c (flow_dump_loop): Likewise.
	(flow_loops_dump): Likewise.

	* c-typeck.c (c_start_case): Fix typo.

2000-09-17  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-decl.c (grokdeclarator): Don't give a warning about defaulting
	to int for plain complex which defaults to complex double.  Do
	warn about defaulting to complex double if pedantic.  Warn about
	complex integer types if pedantic.  Warn about complex types if
	pedantic and not in C99 mode.
	* c-typeck.c (build_unary_op): If pedantic, warn about use of ~
	for complex conjugation.

2000-09-17  Joseph S. Myers  <jsm28@cam.ac.uk>

	* contrib.texi: Update my entry.

Sun Sep 17 18:48:32 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.md (mcu_enhanced): New attribute.
	(mcu_mega): Likewise.
	(extendhisi2): Use mcu_enhanced.
	(zero_extendhisi2): Likewise.
	(call_insn): Use mcu_enhanced and mcu_mega.
	(call_value_insn): Likewise.
	(*sbrx_branch): Use mcu_mega.
	(*sbrx_and_branchsi): Likewise.
	(*sbrx_and_branchhi): Likewise.
	(*tablejump_lib): Likewise.

Sun Sep 17 10:46:17 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* alias.c (true_dependence): Allow non-unchanging read to conflict
	with unchanging write.

	* expr.c (store_constructor_field): Accept ALIAS_SET arg.
	(store_constructor): Pass alias_set to it.

	* c-decl.c (grokdeclarator): Reorder tests to avoid looking at
	TYPE_MAIN_VARIANT of ERROR_MARK.
	* c-lex.c (readescape): Avoid using printf syntax we don't recognize.

	* simplify-rtx.c (simplify_unary_operation): Add cases
	FLOAT_EXTEND and FLOAT_TRUNCATE to ones that return 0.

2000-09-17  Bernd Schmidt  <bernds@redhat.co.uk>

	* expr.h (emit_library_call, emit_library_call_value): Delete
	declarations.
	* rtl.h (enum libcall_type): New.
	(emit_library_call, emit_library_call_value): Change fn_type arg to
	be of type enum libcall_type.
	* calls.c: Likewise for the function definitions.  Several callers
	throughout changed to use the new enumeration appropriately.
	(emit_library_call_value_1): Likewise.  Put back code to make libcall
	blocks of equal form, but only use it for the two new higher
	enumeration values.

2000-09-16  Mark Mitchell  <mark@codesourcery.com>

	Convert the C front-end to use function-at-a-time mode.
	* c-common.h: Include splay-tree.h.
	(C_DECLARED_LABEL_FLAG): New macro.
	(struct language_function): Add x_scope_stmt_stack and
	x_function_name_declared_p.
	(RECHAIN_STMTS): Move definition.
	(lang_statment_code_p): Likewise.
	(lang_expand_stmt): Likewise.
	(lang_expand_decl_stmt): New variable.
	(lang_expand_function_end): Likewise.
	(current_scope_stmt_stack): New function.
	(add_decl_stmt): Likewise.
	(add_scope_stmt): Likewise.
	(mark_stmt_tree): Likewise.
	(struct c_lang_decl): New structure.
	(DECL_SAVED_TREE): Define.
	(c_mark_lang_decl): New function.
	(c_expand_start_cond): Change prototype.
	(c_finish_then): New function.
	(c_finish_else): Likewise.
	(current_function_name_declared): Remove.
	(set_current_function_name_declared): Likewise.
	(mark_c_language_function): Declare.
	(case_compare): Likewise.
	(c_add_case_label): Likewise.
	(c_expand_expr): Likewise.
	(c_safe_from_p): Likewise.
	* c-common.c (lang_expand_function_end): New variable.
	(struct if_elt): Add if_stmt.
	(c_expand_start_cond): Add the if-statement to the statement-tree,
	rather than generating RTL.
	(c_finish_then): New function.
	(c_expand_start_else): Don't generate RTL.
	(c_finish_else): New function.
	(c_expand_expr_stmt): Don't generate RTL.
	(statement_code_p): Add SCOPE_STMT.
	(case_compare): New function.
	(c_add_case_label): Likewise.
	(mark_stmt_tree): Likewise.
	(c_mark_lang_decl): Likewise.
	(mark_c_language_function): Likewise.
	(c_expand_expr): Likewise.
	(c_safe_from_p): Likewise.
	* c-decl.c (c_stmt_tree): New variable
	(c_scope_stmt_stack): Likewise.
	(c_function_name_declared_p): Likewise.
	(lang_expand_expr_stmt): Remove.
	(poplevel): Don't call output_inline_function for nested
	functions.
	(pushdecl): Don't set DECL_CONTEXT for a local declaration of an
	`extern' function.
	(redeclaration_error_message): Change means of computing whether
	or not a function is nested.
	(lookup_label): Don't call label_rtx.
	(init_decl_processing): Add more GC roots.
	(start_decl): Add DECL_STMTs to the statement-tree, rather than
	calling rest_of_decl_compilation.
	(finish_decl): Don't call expand_decl.
	(store_parm_decls): Begin the statement-tree, but don't generate
	RTL.
	(finish_function): Tie off the statement-tree.  Call c_expand_body
	if appropriate.
	(c_expand_body): New function.
	(push_c_function_context): Save more information.
	(pop_c_function_contxt): Likewise.
	(copy_lang_decl): Now that we use DECL_LANG_SPECIFIC, copy it.
	(lang_mark_tree): Mark it.
	(current_stmt_tree): Adjust.
	(current_scope_stmt_stack): New function.
	(do_case): Remove.
	(set_current_name_declared): Likewise.
	(c_begin_compound_stmt): Define.
	(c_expand_decl_stmt): Likewise.
	* c-lang.c: Include rtl.h and expr.h.
	(lang_init): Set more language-specific hooks.
	* c-lex.c: Include expr.h.
	* c-parse.in: Changes throughout to add statements to the
	statement-tree, rather than generating RTL after every statement.
	* c-semantics.c (lang_expand_decl_stmt): Define.
	(add_decl_stmt): New function.
	(add_scope_stmt): Likewise.
	(finish_stmt_tree): Tweak.
	(genrtl_expr_stmt): Likewise.
	(genrtl_decl_stmt): Handle local labels, and call
	lang_expand_decl_stmt if required.
	(genrtl_for_stmt): Fix line-number handling.
	(genrtl_case_label): Handle cleanups.
	(genrtl_asm_stmt): Don't call combine_strings.
	(genrtl_compound_stmt): Simplify.
	(expand_stmt): Handle SCOPE_STMTs.
	* c-tree.h (struct lang_decl): New structure.
	(C_DECLARED_LABEL_FLAG): Remove.
	(c_begin_compound_stmt): Declare.
	(c_expand_decl_stmt): Likewise.
	(c_expand_start_case): Rename to c_start_case.
	(c_finish_case): New function.
	* c-typeck.c (start_init): Tweak setting of
	constructor_incremental.
	(c_expand_asm_operands): Tweak error-handling.  Add to the
	statement-tree.
	(c_expand_return): Add to the statement-tree.
	(c_expand_start_case): Rename to ...
	(c_start_case): ... this.
	(struct c_switch): New type.
	(switch_stack): New variable.
	(do_case): Simplify.
	(c_finish_case): New function.
	* dependence.c: Include expr.h.
	(enum dependence_type): Change spelling of enumerals.
	(check_node_dependence): Adjust.
	* expr.h (lang_safe_from_p): Declare.
	(safe_from_p): Likewise.
	* expr.c (lang_safe_from_p): New variable.
	(safe_from_p): Give it external linkage.  Use lang_safe_from_p.
	* stmt.c (expand_expr_stmt): Avoid clobberring of last_expr_type.
	* toplev.c (rest_of_decl_compilation): Robustify.
	* tree.c (contains_placeholder_p): Likewise.
	* Makefile.in: Update dependencies.
	* objc/objc-act.h: Adjust calculation of value for dummy_tree_code.
	* objc/objc-act.c: Include rtl.h, expr.h, and c-common.h.
	(objc_expand_function_end): New function.
	(finish_method_def): Use it.
	(init_objc): Initialize more language-specific hooks.
	* objc/Make-lang.in: Update dependencies.

2000-09-16  Geoffrey Keating  <geoffk@cygnus.com>

	* configure.in: Define macros that affect features before
	testing for features.  Don't define _XOPEN_SOURCE.
	* configure: Regenerated.
	* config.in: Regenerated.

Sat Sep 16 19:42:50 EDT 2000  John Wehle  (john@feith.com)

	* rtlanal.c (rtx_varies_p): Volatile asms vary.
	(rtx_unstable_p): Restructure code.  Volatile asms
	are unstable.

Sat Sep 16 14:35:55 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* function.h (no_debugging_symbols): New field.
	* integrate.c (save_for_inline): Renamed from save_for_inline_nocopy.
	Initialize no_debugging_symbols.
	(output_inline_function): Save and restore write_symbols and set from
	no_debugging_symbols.
	* toplev.c (rest_of_compilation): Call save_for_inline.
	* tree.h: Update comment.

	* stor-layout.c (place_field): Don't do anything if field or
	its type are ERROR_MARK.

Sat Sep 16 19:14:00 2000  Laurynas Biveinis <lauras@softhome.net>

	* cppfiles.c (purge_cache): Use munmap only if MMAP_THRESHOLD defined.
	(read_include_file): Ensure inc->mmaped is initialized.

2000-09-16  Richard Henderson  <rth@cygnus.com>

	* cppiles.c (purge_cache): Use PTR not caddr_t.

2000-09-16  Hans-Peter Nilsson  <hp@axis.com>

	* gcc.c: In description for %{<S}, say the option removed is -S.
	* invoke.texi (Spec Files): Ditto.

2000-09-16  Andreas Jaeger  <aj@suse.de>

	* configure.in: Always define _GNU_SOURCE to make interfaces
	visible that were hidden by only defining _GNU_SOURCE.
	* configure: Regenerated.

Sat 16-Sep-2000 08:13:45 BST  Neil Booth  <NeilB@earthling.net>

	* cpplex.c (push_macro_context): Set an argument's level after
	calling parse_args.  We could loop infinitely otherwise.

2000-09-15  Tom Tromey  <tromey@cygnus.com>

	* configure, config.in: Rebuilt.
	* configure.in: Check for iconv.h.  Define _XOPEN_SOURCE.

2000-09-15  Greg McGary  <greg@mcgary.org>

	* cppmacro.c (check_trad_stringification): Check token
	text pointers against limit before dereferencing.

2000-09-15  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (format_wanted_type): New structure.
	(check_format_types): New function.
	(check_format_info): Pass all checking of types of format
	arguments, including width and precision arguments, to this new
	function.

2000-09-15  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* BUGS: Remove file.

2000-09-15  Jakub Jelinek  <jakub@redhat.com>

	* config/alpha/alpha.c (override_options): ev6 cache latencies
	from Richard Henderson.  Don't allow -mmemory-latency=L0.

	* config/alpha/alpha.h (TARGET_CPU_EV5, TARGET_CPU_EV6): Define.
	(TARGET_OPTIONS): Add tune=.
	(alpha_tune_string): Declare.
	* config/alpha/alpha.c (override_options): Add cpu_table.
	Use alpha_cpu_string first to set both alpha_cpu and target_flags
	and then alpha_tune_string to set alpha_cpu only.
	Replace tests for PROCESSOR_EV* with TARGET_CPU_EV* tests.
	* config/alpha/elf.h (ASM_FILE_START): Likewise.
	* config/alpha/osf.h (ASM_FILE_START): Likewise.
	* config/alpha/openbsd.h (ASM_FILE_START): Likewise.

Fri Sep 15 19:45:55 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* i386-protos.h (no_comparison_operator, uno_comparison_operator):
	Remove.
	(ix86_comparison_operator, ix86_cc_mode): Declare
	* i386.h (CCGC, CCGCO): New modes.
	(SELECT_CC_MODE): Move offline to ....
	* i386.c (ix86_cc_mode): .... here; use new modes.
	(ix86_comparison_operator): New.
	(fcmov_comparison_operator): Ensure proper mode.
	(put_condition_mode): More sanity checking.
	(ix86_match_ccmode): Handle new modes.
	(ix86_expand_fp_compare): GEU requires CCmode.
	(ix86_expand_strlensi_unroll_1): Use emit_cmp_and_jump_insn instead of
	doing it by hand.
	* i386.md (cmp?i_ccz_1): Remove
	(cmp?i_ccno_1): Use ix86_match_ccmode.
	(cmp?i_minus_1): New.
	(cmpsi_1): New expander.
	(cmpqi_ext_1): Use match_ccmode
	(cmpqi_ext_3): New expander.
	(cmpqi_ext_3_insn): Rename from cmpqi_ext_3.
	(cmpqi_ext_4): Use match_ccmode.
	(add?i_?): Use match_ccmode.
	(add?i_6): New.
	(test?i_ccz_1): Remove
	(test?i_1): New.
	(testsi_ccno_1, testqi_ccz_1, testqi_ext_ccno_0): New expander.
	(testqi_ext_0): Use ix86_match_ccmode.
	(*xorqi_cc_ext_1): Use ix86_match_ccmode.
	(xorqi_cc_ext_1): New expander.
	(shift patterns): Use CCGOCmode for all shifts except for sar.
	(setcc_?, jcc_?, miv?icc_nic): Use ix86_comparison_operator.
	(setcc_3, jcc_3, miv?icc_c): Remove.

2000-09-15  Will Cohen  <wcohen@redhat.com>

	* dwarf2out.c (add_const_value_attribute): Changed array into a
	xmalloced object, so it exists after function exit.
	(free_AT): Added case for dw_val_class_float to free allocated
	memory.

2000-09-15  Kazu Hirata  <kazu@hxi.com>

	* config/i386/i386.md: Fix a comment typo.
	* gcc.c: Fix formatting.

2000-09-15  Bernd Schmidt  <bernds@redhat.co.uk>

	* optabs.c (emit_libcall_block): If target is a user variable,
	copy to a temporary first.
	* expr.c (convert_move): When generating a libcall, make a libcall
	block.
	* calls.c (emit_library_call_value_1): Don't create a libcall
	sequence here; our caller will in most cases do it.

	* sh.h (SECONDARY_INPUT_RELOAD_CLASS): Handle moving T, MACL or
	MACH into FPUL.
	(SECONDARY_OUTPUT_RELOAD_CLASS): Similar case.
	* sh.md (reload_outsf): Generate recognizable patterns for
	TARGET_SH3E.
	(floatsisf2, floatsisf2_ie, floatsisf2_i4, fix_truncsfsi2,
	fix_truncsfsi2_i4, fixsfsi, floatsidf2, floatsidf2_i, fix_truncdfsi2,
	fix_truncdfsi2_i, extendsfdf2, extendsfdf2_i4, truncdfsf2,
	truncdfsf2_i4): Change not to use explicit references to fpul.
	(floatsisf2_ie): Remove USE of fpscr.
	(floatsisf2): Change default expansion to match this.
	(fix_truncsfsi2_i4_2, fix_truncdfsi2_i4 & splitters): Comment out
	unused patterns.

2000-09-15  Richard Henderson  <rth@cygnus.com>

	* expmed.c (store_bit_field): Consider naturally aligned
	memory for direct reference.

2000-09-15  Richard Henderson  <rth@cygnus.com>

	* config/alpha/alpha.c (alpha_expand_unaligned_load): Force all
	AND addresses into alias set 0.
	(alpha_expand_unaligned_store): Likewise.
	(alpha_expand_unaligned_load_words): Likewise.
	(alpha_expand_unaligned_store_words): Likewise.

2000-09-15  Bernd Schmidt  <bernds@redhat.co.uk>

	* config/sh/sh.h (CPP_SPEC): For -m4-nofpu, define __SH4_NOFPU__.
	* config/sh/lib1funcs.asm (movstr_i4): Also compile if __SH4_NOFPU__
	is defined.
	* config/mips/mips.c (mips_va_arg): Args passed by reference have a
	rsize of UNITS_PER_WORD.

Fri 15-Sep-2000 06:49:07 BST  Neil Booth  <NeilB@earthling.net>

	* cpplex.c (ON_REST_ARG): Correct the test.
	(maybe_paste_with_next): Duplicate a token that fail pasting,
	and clear its PASTE_LEFT flag, so that nested pasting attempts
	do not occur.

2000-09-14  Richard Henderson  <rth@cygnus.com>

	* calls.c (precompute_register_parameters): Use COSTS_N_INSNS, not 2.
	* cse.c (rtx_cost): Likewise.
	* optabls.c (expand_binop): Likewise.
	(expand_twoval_binop, prepare_cmp_insn): Likewise.
	* regclass.c (copy_cost): Likewise.
	* reload1.c (reload_cse_move2add): Likewise.

2000-09-14  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-parse.in (reswords): Add _Complex.

2000-09-14  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* gcc.1: Delete documentation for -undef preprocessor option.

2000-09-14  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP,
	STARTFILE_SPEC, ENDFILE_SPEC): Remove define.
	* config/sh/elf.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP):
	Remove undefine before config/elfos.h.
	* config/sh/t-sh (EXTRA_MULTILIB_PARTS): Comment out.

2000-09-14  Kazu Hirata  <kazu@hxi.com>

	* invoke.texi (H8/300 Options): Add -ms2600.
	* config/h8300.c (h8300_init_once): Output an error when -ms2600
	is used without -ms.
	* config/h8300.h (TARGET_MAC): New.
	(TARGET_SWITCHES): Add -ms2600 and -mno-s2600.
	(CONDITIONA_REGISTER_USAGE): Disable the mac register on any
	machine other than H8/S2600.
	* config/h8300.md: Accept mac instructions on the H8/S2600 instead
	of the H8/S2000.

2000-09-14  Alexandre Oliva  <aoliva@redhat.com>, Bernd Schmidt  <bernds@redhat.co.uk>

	* reload.c (find_reloads_address_1): Generate reloads for auto_inc
	pseudos that refer to the original pseudos, not only to their
	equivalent memory locations.

Thu Sep 14 12:10:16 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* expr.c (expand_expr, case COMPONENT_EXPR): Copy memory attributes
	when making new MEM.

	* Makefile.in (LN): Remove duplicate definition.

2000-09-12  Bernd Schmidt  <bernds@redhat.co.uk>

	From Joern Rennecke:
	* local-alloc.c (update_equiv_regs): If there is no REG_EQUAL note
	on an insn and function_invariant_p returns nonzero for the source,
	add a REG_EQUAL note.

Thu Sep 14 00:51:57 EDT 2000  John Wehle  (john@feith.com)

	* alias.c (memrefs_conflict_p): An ADDRESSOF doesn't
	conflict with frame_pointer_rtx.

2000-09-13  Kazu Hirata  <kazu@hxi.com>

	* loop.c: Fix formatting.
	* loop.h: Likewise.

2000-09-13  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.md (divsf3): New.
	(divsf3_internal_lat, divsf3_internal_thr): New.
	(divdf3, divdf3_internal_lat, divdf3_internal_thr): New.
	(divtf3, divtf3_internal_lat, divtf3_internal_thr): New.
	(adddf3_trunc, subdf3_trunc, muldf3_trunc): New.
	(madddf4_trunc, msubdf4_trunc, nmuldf3_trunc): New.
	(nmadddf4_alts, nmadddf4_trunc): New.
	(addtf3_truncsf, addtf3_truncdf, subtf3_truncsf): New.
	(subtf3_truncdf, multf3_truncsf, multf3_truncdf): New.
	(multf3_truncsf_alts, multf3_truncdf_alts): New.
	(maddtf4_truncsf, maddtf4_truncdf, maddtf4_alts_truncdf): New.
	(msubtf4_truncsf, msubtf4_truncdf, nmultf3_truncsf): New.
	(nmultf3_truncdf, nmaddtf4_truncsf, nmaddtf4_truncdf): New.
	(nmaddtf4_truncdf_alts): New.
	(recip_approx): Don't predicate.

2000-09-13  Richard Henderson  <rth@cygnus.com>

	* config/ia64/lib1funcs.asm (__divsf3): Protect fnorm.s with p6.

2000-09-13  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* flags.h (flag_dump_rtl_in_asm): Declare.
	* toplev.c (flag_dump_rtl_in_asm): Define.
	(decode_d_option): Set flag_dump_rtl_in_asm and flag_print_asm_name
	if -dP is specified.
	* rtl.h (print_rtx_head): Declare.
	* print-rtl.c (print_rtx_head): Define.
	(print_rtx): Print the string pointed to by print_rtx_head
	at beginning of each dump line.
	(print_rtl): Likewise.
	(print_rtl_single): Likewise.
	* final.c (final_scan_insn): Dump the insn in the assembly
	file for debugging.
	* gcc.1: Document -dP option.
	* invoke.texi (Debugging Options): Likewise.

2000-09-13  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* md.texi (Machine Constraints): Document the 68HC11 constraints.
	* install.texi (Configurations): Document the 68HC11&68HC12 port.
	* invoke.texi (Option Summary, M68hc1x Options): Document the options.

Tue Sep 12 13:51:13 2000  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.h (ASSEMBLER_DIALECT): New macro declared.
	* config/avr/avr.md (*movstrqi_insn): Cleanup output template.
	(*clrstrqi): Likewise.
	(xorhi3,xorsi3,absqi2): Likewise.
	(one_cmplhi2,one_cmplsi2): Likewise.
	(addsi3): Two stupid constraint alternatives removed.
	(extendhisi2): Use `movw' for enhanced avr cores.
	(zero_extendhisi2): Likewise.

Wed Sep 13 02:31:23 EDT 2000  John Wehle  (john@feith.com)

	* alias.c (find_base_term): Use frame_pointer_rtx
	when handling an ADDRESSOF.

	* cse.c (canon_hash): Handle USE of BLKmode memory.
	(cse_insn): Outgoing arguments for a libcall don't
	affect any recorded expressions.

2000-09-12  Tom Tromey  <tromey@cygnus.com>

	* configure, config.in: Rebuilt.
	* configure.in: Check for iconv, nl_langinfo, langinfo.h.

2000-09-12  Jakub Jelinek  <jakub@redhat.com>

	* c-lex.c (lex_string): Use charwidth to compute bytemask.
	* expr.c (expand_expr): Don't optimize constant array references
	initialized with wide string constants.

2000-09-13  Michael Hayes  <mhayes@cygnus.com>

	* loop.c (note_set_pseudo_multiple_uses): Correct.

2000-09-12  Jim Wilson  <wilson@cygnus.com>

	* ifcvt.c (noce_process_if_block): If A and B are the same, and no
	else block, and X has side-effects, then fail.

2000-09-12  Greg McGary  <greg@mcgary.org>

	* config/mips/mips-protos.h
	(trap_cmp_op, mips_gen_conditional_trap): New func decls.
	* config/mips/mips.h (ISA_HAS_COND_TRAP): New macro.
	(PREDICATE_CODES): Add "trap_cmp_op".
	* config/mips/mips.c
	(trap_cmp_op, mips_gen_conditional_trap): New functions.
	* config/mips/mips.md (trap, conditional_trap): New patterns.

2000-09-12  Bernd Schmidt  <bernds@redhat.co.uk>

	* flow.c (try_pre_increment_1): Don't do anything to sets of the stack
	pointer.

2000-09-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* builtins.c (built_in_decls): New array.
	(expand_builtin_fputs): New function.
	(expand_builtin): Handle BUILT_IN_FPUTC and BUILT_IN_FPUTS.

	* builtins.def (BUILT_IN_FPUTC, BUILT_IN_FPUTS): New members.

	* c-common.c (c_common_nodes_and_builtins): Handle fputc/fputs.

	* tree.h (built_in_decls): New array.

Tue Sep 12 08:53:57 2000  Jeffrey A Law  (law@cygnus.com)

	* convex.md: Use "+" instead of "=" for outputs wrapped in a
	STRICT_LOW_PART.
	* i370.md, i386.md, ns32k.md, sh.md, vax.md: Likewise.

2000-09-12  Kazu Hirata  <kazu@hxi.com>

	* haifa-sched.c: Fix formatting.

	* genattrtab.c: Fix formatting.

	* unroll.c: Fix formatting.

2000-09-12  Bruce Korb  <bkorb@gnu.org>

	* fixinc/fixfixes.c: make a type for the fix procedure & use it,
	remove obsolete code
	* fixinc/fixincl.c: Use PARAMS, not _P_.  Add no-op default to switch.
	* fixinc/fixincl.tpl: make non-exported arrays static scope
	* fixinc/fixincl.x: regenerate
	* fixinc/fixlib.h: Use PARAMS, not _P_
	* fixinc/fixtests.c: make a type for the test proc & use it
	* fixinc/server.h: Use PARAMS, not _P_

2000-09-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-typeck.c (process_init_element): Avoid union init warnings on
	floating point zero.  Don't crash on unions containing structs.

2000-09-12  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.h (PREDICATE_CODES): Add CONST_DOUBLE to
	general_movsrc_operand, and remove CONST_INT from
	general_movdst_operand.

2000-09-12  Bernd Schmidt  <bernds@redhat.co.uk>

	* cse.c (approx_reg_cost): If SMALL_REGISTER_CLASSES, return INT_MAX
	if a reference to non-fixed hardreg is seen.  Otherwise, count hard
	regs with a higher cost.
	(preferrable): Deal with cases where either cost or regcost is
	MAX_COST.
	(cse_insn): Use MAX_COST rather than 10000.  Always initialize
	regcost values.
	(COSTS_N_INSNS): Move definition...
	* rtl.h: ...here.
	(MAX_COST): New macro.
	* loop.c (init_loop): Use COSTS_N_INSNS macro instead of hardcoded
	constant.

2000-09-11  Mark Mitchell  <mark@codesourcery.com>

	* c-common.h (genrtl_clear_out_block): Remove.
	* c-semantics.c (genrtl_clear_out_block): Remove.
	(genrtl_while_stmt): Don't call it.
	(genrtl_for_stmt): Likewise.

2000-09-11  Zack Weinberg  <zack@wolery.cumb.org>

	* cppfiles.c: Move all default-#defines to top of file.
	(open_include_file): Replace by lookup_include_file.
	(read_with_read, read_file): Merged into read_include_file.
	(stack_include_file, purge_cache): New functions.
	(close_cached_fd): Delete.
	(lookup_include_file, read_include_file, _cpp_pop_file_buffer):
	Cache the in-memory buffer, not the file descriptor.

	* cpphash.h (struct include_file): Add buffer, st, refcnt,
	mapped fields.
	(xcnew): New utility macro.
	(DO_NOT_REREAD, NEVER_REREAD): Move up by struct include_file.
	* cpplib.h (struct cpp_buffer): Remove mapped field.

2000-09-11  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplex.c (parse_string): Accept backslash space newline as a
	line continuation.
	(lex_line): Likewise.
	(_cpp_get_token): Remove hard limit on macro nesting.

2000-09-12  Philipp Thomas  <pthomas@suse.de>

	* aclocal.m4 (AM_WITH_NLS): Don't force use of included gettext.
	* configure: Rebuilt.

2000-09-13  Michael Hayes  <mhayes@cygnus.com>

	* flow.c (split_block): Fix update of registers live at
	end of split block.

Tue Sep 12 01:51:38 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* i386.md (add?i_3, add?i_5): New.
	(add?i_4): Rename from add?i_3;  Fix compare pattern.
	(sub?i_3, xor?i_3, ior?i_3): New.

	* genrecog.c (write_tree): Output code to clear insn_extract cache.
	* genattrtab.c (write_attr_case): Gen call to extract_insn_cache
	instead of extract_insn and extract_constrain_insn_cache instead of
	extract_insn and constrain_operands.
	* recog.c (extract_insn_cached, extract_constrain_insn_cached):
	New functions.
	(extract_insn): Clear which_alternative.
	(constrain_operands): Set which_alternative to -1 when failed.
	* recog.h (extract_constrain_insn_cached, extract_insn_cached):
	Declare.

2000-09-11  Matthew Hiller  <hiller@redhat.com>

	* config/h8300/h8300.md (movstrictqi): Changed constraint modifier
	on operand 0 to '+'.
	(movstricthi): Likewise.

2000-09-12  Michael Hayes  <mhayes@cygnus.com>

	* loop.h (LOOP_IVS): New macro.
	(REG_IV_TYPE, REG_IV_INFO): Add ivs argument.
	(struct loop_ivs): New.
	(struct loop_info): Add ivs field.
	(reg_iv_type, reg_iv_info): Delete prototype.
	(reg_biv_class, loop_iv_list): Likewise.
	* loop.c (record_biv, find_life_end): Pass loop argument.
	(reg_iv_type): Remove global array and use
	field in loop_regs structure within loop_ivs structure.
	(reg_iv_info, reg_biv_class, loop_iv_list): Likewise.
	(first_increment_giv, last_increment_giv): Use entry in
	loop_ivs structure.
	(record_initial): Pass ivs pointer.
	* unroll.c (copy_loop_body, remap_split_bivs): Add loop argument.

2000-09-12  Michael Hayes  <mhayes@cygnus.com>

	* loop.h (LOOP_REGS): New macro.
	(struct loop_regs): New.
	(struct loop_info): Add regs field.
	* loop.c (set_in_loop): Remove global array and store
	in loop_regs structure as part of loop_info structure.
	(n_times_set, may_not_optimize): Likewise.
	(reg_single_usage, moved_once): Likewise.
	(count_one_set): Add regs argument.
	(combine_movables, rtx_equal_for_loop_p, combine_givs): Likewise.
	(set_pseudo_multiple_uses): Pass regs pointer.

2000-09-12  Michael Hayes  <mhayes@cygnus.com>

	* unroll.c (iteration_info): Subsume into loop_iterations.
	* loop.h (loop_info): New field iv.

2000-09-12  Michael Hayes  <mhayes@cygnus.com>

	* basic-block.h (LOOP_TREE, LOOP_PRE_HEADER, LOOP_EDGES): New.
	(LOOP_EXITS_DOMS, LOOP_ALL): Likewise.
	(flow_loops_update): New prototype.
	(flow_loops_find): Add flags to prototype.
	(struct loop): Add `pre_header_root' and `pre_header_trace' fields.
	* flow.c (flow_loop_pre_header_scan): New.
	(flow_loop_dump): Dump pre-header root and trace and exit dominators.
	(flow_loop_free): Free pre-header root and trace and exit dominators.
	(flow_loops_find): New argument flags.
	(flow_loops_update): New function.
	* toplev.c (rest_of_compilation): Add flag argument to flow_loops_find.

2000-09-12  Michael Hayes  <mhayes@cygnus.com>

	* basic-block.h (split_block, update_bb_for_insn): New prototypes.
	* flow.c (split_block, update_bb_for_insn): New functions.

2000-09-11  Richard Henderson  <rth@cygnus.com>

	* cse.c (fold_rtx): Honor NO_FUNCTION_CSE.

2000-09-11  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64-protos.h (fr_nonimmediate_operand): Declare.
	* config/ia64/ia64.c (fr_nonimmediate_operand): New.
	(ia64_override_options): Prevent optimizing division for both
	latency and throughput.
	(rtx_needs_barrier): Handle frcpa.
	* config/ia64/ia64.h (MASK_INLINE_DIV_LAT): New.
	(MASK_INLINE_DIV_THR, TARGET_INLINE_DIV_LAT): New.
	(TARGET_INLINE_DIV_THR, TARGET_INLINE_DIV): New.
	(TARGET_SWITCHES): Add -minline-divide-min-latency and
	-minline-divide-max-throughput.
	(PREDICATE_CODES): Update.
	* config/ia64/ia64.md (extendsidi2): Remove * from f case.
	(zero_extendsidi2): Likewise.  Fix typo in f case insn.
	(extendsfdf2): Add cases for gr<->fr and fr<->mem.
	(extendsftf2): Likewise.
	(extenddftf2): Likewise.
	(fix_trunctfdi2_alts): New.
	(fixuns_trunctfdi2_alts): New.
	(madd*4): Rename from madd*3.
	(divsi3, modsi3, udivsi3, umodsi3): New.
	(divsi3_internal): New.
	(divdi3, moddi3, udivdi3, umoddi3): New.
	(divdi3_internal_lat, divdi3_internal_thr): New.
	(multf3_alts, maddtf4_alts, nmaddtf4_alts): New.
	(recip_approx): New.

2000-09-11  Alexandre Oliva  <aoliva@redhat.com>

	* print-rtl.c (debug_call_placeholder_verbose): New variable.
	(print_rtx) [CALL_PLACEHOLDER]: Dump all call sequences if it is
	set.
	* integrate.c (copy_rtx_and_substitute): Don't share
	LEAF_REG_REMAPpable registers with the inlined function.  Don't
	share the function value with calling sequences.

2000-09-11  Jakub Jelinek  <jakub@redhat.com>

	* c-decl.c (do_case): Fix a typo.

	* combine.c (simplify_if_then_else): Don't convert a == b ? b : a
	to a if the comparison is floating mode and not -ffast-math.
	* simplify-rtx.c (simplify_ternary_operation): Likewise.

Mon Sep 11 20:07:48 2000  J"orn Rennecke <amylaar@redhat.co.uk>

	* sh.h (INITIALIZE_TRAMPOLINE): Remove stray call to
	gen_ic_invalidate_line.

2000-09-11  Philip Blundell  <pb@futuretv.com>

	* config/arm/elf.h (SUBTARGET_CPP_SPEC): Don't define `arm_elf'.

Mon Sep 11 10:48:41 2000  Ulrich Drepper <drepper@redhat.com>

	* install.texi (LANGUAGES): Update to include new languages.
	* INSTALL: Rebuilt.

2000-09-11  DJ Delorie  <dj@redhat.com>

	* gcc.c (main): Don't warn about unused -B prefixes
	(unused_prefix_warnings): remove

2000-09-11  Kazu Hirata  <kazu@hxi.com>

	* final.c: Fix formatting.

	* integrate.c: Fix formatting.

2000-09-11  Geoff Keating  <geoffk@cygnus.com>

	* alias.c (memrefs_conflict_p): An ADDRESSOF does conflict, sorry.

2000-09-11  Bernd Schmidt  <bernds@redhat.co.uk>

	* reload.c (regno_clobbered_p): Fix thinko in previous change.

2000-09-10  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* gcc.1: Document 68hc11 specific options.

2000-09-10  Geoff Keating  <geoffk@cygnus.com>

	* config/rs6000/sysv4.h (MASK_LONG_DOUBLE_128): Define.
	(TARGET_LONG_DOUBLE_128): Define.
	(SUBTARGET_SWITCHES): Add -mlong-double-64 and -mlong-double-128.
	(LONG_DOUBLE_TYPE_SIZE): Redefine.
	(MAX_LONG_DOUBLE_TYPE_SIZE): Define.
	(LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define depending on definition
	of __LONG_DOUBLE_128__.
	(CPP_SYSV_SPEC): Define __LONG_DOUBLE_128__ if -mlong-double-128
	passed.
	(CPP_LONGDOUBLE_DEFAULT_SPEC): Define.
	(CPP_SYSV_DEFAULT_SPEC): Define.
	(SUBTARGET_EXTRA_SPECS): Add cpp_longdouble_default.
	(INIT_TARGET_OPTABS): Define.

	* config/rs6000/aix.h (RS6000_ITRUNC): Moved from rs6000.h.
	(RS6000_UITRUNC): Likewise.
	(INIT_TARGET_OPTABS): New macro.
	* config/rs6000/rs6000.c (rs6000_trunc_used): Delete.
	(trunc_defined): Delete.
	(output_prolog): Don't output .extern definitions for fp->int
	conversion routines, ASM_OUTPUT_EXTERNAL_LIBCALL will do it.
	* config/rs6000/rs6000.h (rs6000_trunc_used): Delete.
	(trunc_defined): Delete.
	(RS6000_ITRUNC): Moved to aix.h.
	(RS6000_UITRUNC): Likewise.
	* config/rs6000/rs6000.md (fix_truncdfsi2): Fail if it would
	only emit a libcall.
	(fixuns_truncdfsi2): Delete.
	(trunc_call): Delete.
	(trunc_call_rtl): Delete.

2000-09-10  Zack Weinberg  <zack@wolery.cumb.org>

	* varasm.c (make_decl_rtl): Restore leading star on
	DECL_ASSEMBLER_NAME set for decls with an asmspec.

2000-09-10  Zack Weinberg  <zack@wolery.cumb.org>

	* c-pragma.c (handle_pragma_pack): Correct parsing logic so it
	won't give a spurious error for '#pragma pack()'.  Simplify
	control flow for readability.  'reset' action is not necessary.

2000-09-10  Zack Weinberg  <zack@wolery.cumb.org>

	* defaults.h: Provide default definitions for: CHAR_TYPE_SIZE,
	SHORT_TYPE_SIZE, INT_TYPE_SIZE, LONG_TYPE_SIZE,
	LONG_LONG_TYPE_SIZE, WCHAR_TYPE_SIZE, FLOAT_TYPE_SIZE,
	DOUBLE_TYPE_SIZE, LONG_DOUBLE_TYPE_SIZE, and WCHAR_UNSIGNED.

	* cppexp.c, dwarfout.c, dwarf2out.c, emit-rtl.c, final.c, optabs.c,
	profile.c, sdbout.c, tradcif.y, tree.c:
	Include defaults.h if not already included.
	Don't define the above macros.

	* Makefile.in: Update dependencies.

2000-09-10  Mark Mitchell  <mark@codesourcery.com>

	* c-common.h (add_stmt): Change prototype.
	(RECHAIN_STMTS): New macro.
	(CASE_LABEL_DECL): Likewise.
	(genrtl_case_label): Change prototype.
	(c_expand_start_case): Remove prototype.
	(build_case_label): Change prototype.
	(decl_constant_value): Declare.
	* c-common.c (check_case_value): Handle C++'s extensions to C
	semantics.
	* c-commnon.def (CASE_LABEL): Add room for the CASE_LABEL_DECL
	field.
	* c-parse.in (stmt): Adjust handling of return statements and case
	laels.
	* c-semantics.c (add_stmt): Return the new statement.
	(genrtl_return_stmt): Take the RETURN_STMT as input, not the
	returned expression.  Directly generate RTL, rather than calling
	c_expand_return.
	(genrtl_switch_stmt): Don't call c_expand_start_case.
	(build_case_label): Take the LABEL_DECL as input, too.
	(genrtl_case_label): Just call add_case_node.
	(expand_stmt): Adjust calls to genrtl_return_stmt and
	genrtl_case_label.
	* c-tree.h (c_expand_start_case): Declare.
	* c-typeck.c (decl_constant_value): Give it external linkage.
	(c_expand_return): Don't call expand_return or expand_null_return;
	use genrtl_return_stmt instead.
	* stmt.c (struct nesting): Remove num_ranges field.
	(add_case_node): Give it external linkage.
	(expand_start_case): Don't set num_ranges.
	(expand_start_case_dummy): Don't clear it.
	(pushcase): Rely on add_case_node to handle `default' labels.
	(add_case_node): Handle `default' labels.
	* tree.c (tree_int_cst_compare): New function.
	* tree.h (tree_int_cst_compare): Declare.
	(add_case_node): Likewise.

2000-09-10  Richard Henderson  <rth@cygnus.com>

	* c-parse.in: Revert last change.
	(init_reswords): Do not enter disabled keywords into the ridpointers
	table, modulo objc weirdness.
	(_yylex): Return the canonical spelling for a keyword.

2000-09-10  Philip Blundell  <philb@gnu.org>

	* config/arm/arm.h (CPP_ISA_SPEC): Don't define `arm' or `thumb'.
	* config/arm/linux-elf.h (CPP_PREDEFINES): Don't define `__arm__'.

Sun Sep 10 14:30:28 EDT 2000  John Wehle  (john@feith.com)

	* alias.c (find_base_term): Handle ADDRESSOF.
	(memrefs_conflict_p): An ADDRESSOF doesn't conflict.

2000-09-10  Denis Chertykov  <denisc@overta.ru>

	* genoutput.c (output_insn_data): Translate <NEWLINE> to \n\ while
	outputting templates with many lines.

2000-09-10  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* libgcc2.h: Use LONG_LONG_TYPE_SIZE instead of MIN_UNITS_PER_WORD
	to decide whether 64-bit support must be generated.

2000-09-10  Richard Henderson  <rth@cygnus.com>

	* c-parse.in (asm patterns): Fix volatile check.

2000-09-09  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* cppmacro.c (check_trad_stringification): New function.
	(save_expansion): If -Wtraditional, warn about stringification of
	macro arguments.

2000-09-11  Michael Hayes  <mhayes@cygnus.com>

	* loop.h (struct loop_mem_info): Move from loop.c
	(struct loop_info): Add fields store_mems, mems, mems_idx,
	mems_allocated, unknown_address_altered,
	unknown_constant_address_altered, num_mem_sets, and
	first_loop_store_insn.

	* loop.c (loop_store_mems): Replace with field in loop_info struct.
	(loop_mems, loop_mems_idx, loop_mems_allocated): Likewise.
	(unknown_address_altered, unknown_constant_address_altered): Likewise.
	(num_mem_sets): Likewise.
	(replace_loop_mems, replace_loop_regs): New.
	(struct loop_replace_args): New.
	(load_mems): Use replace_loop_mems.
	(try_copy_prop): Use replace_loop_regs.
	(replace_loop_reg, replace_loop_mem): Use loop_replace_args structure.

2000-09-09  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* configure.in: Recognize m6811-elf and m6812-elf.
	* configure: Regenerate.

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

	* recog.c (validate_replace_rtx_1): Correct MODE parameter in call
	to operand_subword.

2000-09-10  Michael Hayes  <mhayes@cygnus.com>

	* loop.c (struct movables): New.
	(num_movables): Move into struct movables.
	(the_movables): Change type to struct movables.
	(ignore_some_movables): Change struct movable arg to struct movables.
	(force_movables, combine_movables, regs_match_p): Likewise.
	(rtx_equal_for_loop_p, move_movables): Likewise.
	(scan_loop): Change movables to be of type struct movables.
	Replace last_movable with field in movables structure.

2000-09-08  Zack Weinberg  <zack@wolery.cumb.org>

	* c-pragma.c: Don't elide entire file if !HANDLE_GENERIC_PRAGMAS.
	(init_pragma): Avoid warning if pfile happens to be unused.
	* c-pragma.h: Never define HANDLE_GENERIC_PRAGMAS.  Never
	define init_pragma to nothing.  Always prototype
	init_pragma.  Prototype dispatch_pragma if !USE_CPPLIB.

	* c-lex.c (process_directive): Always call dispatch_pragma.
	Initialize entering_c_header to 0.

2000-09-08  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* config/m68hc11/m68hc11.md: New file, machine description for
	68HC11 & 68HC12.
	* config/m68hc11/m68hc11.h: New file, definitions for 68HC11 & 68HC12.
	* config/m68hc11/m68hc11.c: New file, functions for 68HC11 & 68HC12.
	* config/m68hc11/m68hc12.h: New file, definitions for 68HC12.
	* config/m68hc11/m68hc11-protos.h: New file.
	* config/m68hc11/m68hc11-crt0.S: New file, startup code.
	* config/m68hc11/t-m68hc11-gas: New file, makefile fragment.
	* config/m68hc11/xm-m68hc11.h: New file, target defs.
	* config/m68hc11/larith.asm: New file, libgcc routines.

2000-09-08  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* Makefile.in (DPBIT_FUNCS): Add _usi_to_df.
	(FPBIT_FUNCS): Add _usi_to_sf.
	* config/fp-bit.c (usi_to_float): New function.
	* config/fp-bit.h (L_usi_to_sf, L_usi_to_df): Define.
	(usi_to_float): Add appropriate #define.

2000-09-08  Bernd Schmidt  <bernds@redhat.co.uk>

	* i386-protos.h (sse_comparison_operator, mmx_reg_operand): Declare
	new functions.
	* i386.c (sse_comparison_operator, mmx_reg_operand): New functions.
	* i386.md (attr "type"): Add sse and mmx types.
	(attr "memory"): Handle them without a crash.
	(movsi_1, movdi_2): Allow MMX regs.
	(movdi splits): Don't split moves involving MMX regs.
	(setcc_4): Remove '*' from pattern name so we get a gen_setcc4.
	(movv4sf_internal, movv4si_internal, movv8qi_internal,
	movv4hi_internal, movv2si_internal, movv8qi, movv4hi, movv2si,
	movv4sf, movv4si, pushv4sf, pushv4si, pushv8qi, pushv4hi, pushv2si,
	sse_movaps, sse_movups, sse_movmskps, mmx_pmovmskb, mmx_maskmovq,
	sse_movntv4sf, sse_movntdi, sse_movhlps, sse_movlhps, sse_movhps,
	sse_movlps, sse_loadss, sse_movss, sse_storess, sse_shufps,
	addv4sf3, vmaddv4sf3, subv4sf3, vmsubv4sf3, mulv4sf3, vmmulv4sf3,
	divv4sf3, vmdivv4sf3, rcpv4sf2, vmrcpv4sf2, rsqrtv4sf2, vmrsqrtv4sf2,
	sqrtv4sf2, vmsqrtv4sf2, sse_andti3, sse_nandti3, sse_iorti3,
	sse_xorti3, maskcmpv4sf3, maskncmpv4sf3, vmmaskcmpv4sf3,
	vmmaskncmpv4sf3, sse_comi, sse_ucomi, sse_unpckhps, sse_unpcklps,
	smaxv4sf3, vmsmaxv4sf3, sminv4sf3, vmsminv4sf3, cvtpi2ps, cvtps2pi,
	cvttps2pi, cvtsi2ss, cvtss2si, cvttss2si, addv8qi3, addv4hi3,
	addv2si3, ssaddv8qi3, ssaddv4hi3, usaddv8qi3, usaddv4hi3, subv8qi3,
	subv4hi3, subv2si3, sssubv8qi3, sssubv4hi3, ussubv8qi3, ussubv4hi3,
	mulv4hi3, smulv4hi3_highpart, umulv4hi3_highpart, mmx_pmaddwd,
	mmx_iordi3, mmx_xordi3, mmx_anddi3, mmx_nanddi3, mmx_uavgv8qi3,
	mmx_uavgv4hi3, mmx_psadbw, mmx_pinsrw, mmx_pextrw, mmx_pshufw,
	eqv8qi3, eqv4hi3, eqv2si3, gtv8qi3, gtv4hi3, gtv2si3, umaxv8qi3,
	smaxv4hi3, uminv8qi3, sminv4hi3, ashrv4hi3, ashrv2si3, lshrv4hi3,
	lshrv2si3, mmx_lshrdi3, ashlv4hi3, ashlv2si3, mmx_ashldi3,
	mmx_packsswb, mmx_packssdw, mmx_packuswb, mmx_punpckhbw,
	mmx_punpckhwd, mmx_punpckhdq, mmx_punpcklbw, mmx_punpcklwd,
	mmx_punpckldq, emms, sfence, ldmxcsr, prefetch, stmxcsr, sse_clrti,
	mmx_clrdi): New patterns.

2000-09-08  Richard Earnshaw  <rearnsha@arm.com>

	* arm.c: Don't include tm.h directly.

Fri Sep  8 14:34:56 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* recog.c (validate_replace_rtx_1): Fix confusion about equality
	testing; simplify subregs of constants and nested subregs.

2000-09-08  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.md (symPLT_label2reg): Use operand3 for PIC reg.

2000-09-08  Bernd Schmidt  <bernds@redhat.co.uk>

	* combine.c (combine_simplify_rtx): Try to simplify VEC_SELECT of a
	VEC_CONCAT.
	* rtl.texi (description of USE): Add note about possible pitfalls
	with this rtx.
	From Richard Henderson:
	* reload1.c (choose_reload_regs): Compute need_mode properly.

2000-09-07  Richard Henderson  <rth@cygnus.com>

	* config/ia64/lib1funcs.asm (__divsi3): Use .s1 for frcpa.
	(__modsi3, __umodsi3): Likewise.
	(__udivsi3): Likewise.  Normalize the TFmode values.

2000-09-07  Geoff Keating  <geoffk@cygnus.com>

	* config/rs6000/sol-c0.c (_start): Declare `termfunc' parameter
	with a prototype.
	* config/rs6000/rs6000.h (RS6000_ARG_SIZE): Use cast to suppress
	warning.

Fri Sep  8 03:26:38 2000  J"orn Rennecke <amylaar@redhat.co.uk>

	* sh.md (cmpeqsi_ior_t, cmpeqsi_and_t): Remove.
	(cmpeqdi_t): Add output pattern.
	(cmpeqdi_t+1): Don't split when not optimizing.
	Restore proper splitting operation.

2000-09-07  Richard Henderson  <rth@cygnus.com>

	* c-lex.c (process_directive): If not HANDLE_GENERIC_PRAGMAS,
	do not call dispatch_pragma.

2000-09-07  Jim Wilson  <wilson@cygnus.com>

	* reload.c (push_reload): Use CLASS_CANNOT_CHANGE_MODE_P in addition
	to CLASS_CANNOT_CHANGE_MODE.
	* config/ia64/ia64.h (CLASS_CANNOT_CHANGE_MODE_P): True only if the
	mode classes are different.

2000-09-07  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.h (struct cpp_options): Add user_label_prefix member,
	left out of commit which removed cppulp.c.

2000-09-07  Richard Henderson  <rth@cygnus.com>

	* bb-reorder.c (fixup_reorder_chain): Add jump in new block
	after switch for CASE_DROPS_THROUGH.

2000-09-07  Richard Henderson  <rth@cygnus.com>

	* loop.c (strength_reduce): Call check_ext_dependant_givs.
	Properly extend the biv initial value for the giv.
	(record_biv): Zero ext_dependant.
	(record_giv): New argument ext_val.  Update all callers.
	(general_induction_var): Likewise.
	(consec_sets_giv): Likewise.
	(simplify_giv_expr): Likewise.  Fill in ext_val if we find
	a sign-extend, zero-extend, or truncate.
	(combine_givs_p): Make sure modes are compatible.
	(check_ext_dependant_givs): New.
	(extend_value_for_giv): New.
	* loop.h (struct induction): Add ext_dependant.
	* unroll.c (iteration_info): Extend the biv initial value for the giv.
	(find_splittable_givs): Likewise.
	(final_giv_value): Likewise.

2000-09-07  Zack Weinberg  <zack@wolery.cumb.org>

	* c-pragma.h: Define HANDLE_GENERIC_PRAGMAS if
	REGISTER_TARGET_PRAGMAS is defined.  Duplicate some
	definitions from cpplib.h.
	* cpplib.h: Don't typedef struct cpp_reader if c-pragma.h has
	already done it.
	* tm.texi: Document HANDLE_PRAGMA as no longer supported.  Add
	documentation for REGISTER_TARGET_PRAGMAS.

	* c-lex.c: Include cpplib.h before c-pragma.h.  Define a
	default-pragma callback to implement -Wunknown-pragmas if
	USE_CPPLIB.
	* c-parse.in: Move all includes to top of file.
	* c-pragma.c: Include cpplib.h before c-pragma.h.  Include
	tm_p.h.
	(dispatch_pragma): Put the namespace in the -Wunknown-pragmas
	warning.
	(init_pragma): If REGISTER_TARGET_PRAGMAS is defined, call it.

	* arm.h, arm-protos.h, arm.c,
	  c4x.h, c4x-protos.h, c4x.c,
	  h8300.h, h8300-protos.h, h8300.c,
	  i370.h, i370-protos.h, i370.c,
	  i960.h, i960-protos.h, i960.c,
	  sh.h, sh-protos.h, sh.c,
	  v850.h, v850-protos.h, v850.c: Convert HANDLE_PRAGMA-based
	pragmata scheme to use REGISTER_TARGET_PRAGMAS instead.

	* d30v.h: Don't mention HANDLE_PRAGMA in comment.  Add
	multiple include guard.
	* i370.md (untyped_call): Use GEN_CALL.
	(umodsi3): Remove unused variable.
	* sh/elf.h: Don't undef HANDLE_SYSV_PRAGMA.
	* v850.c (output_move_single, output_move_double): Constify
	return value.
	(print_operand): Constify a char *.
	* v850.h (struct small_memory_info): Constify name member.

2000-09-07  Kazu Hirata  <kazu@hxi.com>

	* config/h8300.h: Fix comment typos.
	* config/h8300/h8300.md: Likewise.
	* config/h8300/lib1funcs.asm: Likewise.

Thu 07-Sep-2000 21:29:00 BST  Neil Booth  <NeilB@earthling.net>

	* Makefile.in: Remove references to cppulp.{c,o}.
	* cppinit.c (initialize_builtins, cpp_start_read,
	cpp_handle_option): Update to use cpp_options structure.
	* cppulp.c: Remove.

2000-09-07  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (time_char_table): Allow %#b and %#h.

2000-09-07 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* reorg.c (find_end_label): If the basic block reorder pass moves the
	return insn to some other place try to locate it again and put our
	end_of_function_label there.
	* reorg.c (relax_delay_slots): Check if find_end_label created a
	new label that invalidates the current optimazation.

2000-09-07  Catherine Moore  <clm@redhat.com>

	* unroll.c (unroll_loop): Check for unconditional jumps
	to loop continuation.  Delete if n_iterations is 1.
	(ujump_to_loop_cont): New routine.

2000-09-07  Bernd Schmidt  <bernds@redhat.co.uk>

	* rtl.c (class_narrowest_mode): Add entries for MODE_VECTOR_INT and
	MODE_VECTOR_FLOAT.
	* reload.c (regno_clobbered_p): Accept new arg, MODE, and use it
	to handle multiword modes correctly.  All callers and the declaration
	changed.

2000-09-06  Mark Mitchell  <mark@codesourcery.com>

	* c-common.h (prep_stmt): Declare.
	(lang_expand_stmt): Likewise.
	* c-decl.c (lang_expand_stmt): Remove.
	* c-semantics.c (lang_expand_stmt): Define.
	(prep_stmt): New function.
	(expand_stmt): Handle common statement types here.

2000-09-07  Niibe Yutaka  <gniibe@m17n.org>, Kaz Kojima  <kkojima@rr.iij4u.or.jp>, Alexandre Oliva  <aoliva@redhat.com>

	* configure.in (sh-*-linux*): Added.
	* configure: Rebuilt.
	* config/sh/t-linux: New file.
	* config/sh/sh.h (USERMODE_BIT): Define.
	(TARGET_USERMODE): Likewise.
	(TARGET_SWITCHES): New switches for the bits above.
	(INITIALIZE_TRAMPOLINE): Call __ic_invalidate in USERMODE.
	* config/sh/linux.h: New file.
	* config/sh/lib1funcs.asm (GLOBAL): Don't prefix symbols with
	underscore on linux.
	(L_sdivsi3, L_udivsi3): Define for linux.
	(L_ic_invalidate): Define.
	* invoke.texi (SH Options): Document -musermode.

2000-09-07  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.h (OVERRIDE_OPTIONS): Don't disable function
	CSE unless generating PIC.

	* config/sh/sh.md (symPLT_label2reg): Force the initialization of
	the PIC register.

2000-09-06  H.J. Lu  (hjl@gnu.org)

	* Makefile.in (clean_s1): Depend on stage_b.
	(clean_s2): Depend on stage_d. Don't remove $(VOL_FILES) in
	stage2. They are used for "make compare".

2000-09-06  Mark Mitchell  <mark@codesourcery.com>

	Move statement-tree facilities from C++ to C front-end.
	* c-common.h (c_tree_index): Add CTI_VOID_ZERO.
	(void_zero_node): New macro.
	(struct stmt_tree_s): New type.
	(stmt_tree): New typedef.
	(struct language_function): New type.
	(last_tree): New macro.
	(last_expr_type): Likewise.
	(walk_tree_fn): New typedef.
	(current_stmt_tree): New function.
	(begin_stmt_tree): Likewise.
	(add_stmt): Likewise.
	(finish_stmt_tree): Likewise.
	(statement_code_p): Likewise.
	(lang_statement_code_p): New variable.
	(walk_stmt_tree): New function.
	(STMT_IS_FULL_EXPR_P): New macro.
	* c-common.c (lang_statement_code_p): New variable.
	(c_common_nodes_and_builtins): Initialize void_zero_node.
	(statement_code_p): New function.
	(walk_stmt_tree): Likewise.
	* c-decl.c (language_function): Rename to ...
	(c_language_function): ... this.  Include language_function.
	(push_c_function_context): Adjust accordingly.
	(pop_c_function_context): Likewise.
	(mark_c_function_context): Likewise.
	(current_stmt_tree): Define.
	* c-semantics.c (begin_stmt_tree): New function.
	(add_stmt): Likewise.
	(prune_unused_decls): Likewise.
	(finish_stmt_tree): Likewise.

2000-09-06 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* flow.c (insn_dead_p): Detect dead memory stores with auto increments.

2000-09-06  Kazu Hirata  <kazu@hxi.com>

	* calls.c: Fix formatting.

2000-09-06  Graham Stott  <grahams@cygnus.co.uk>

	* config/i386/i386.h (ADDRESS_COST): Fix typo.

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

	Integrated preprocessor.

	* Makefile.in: Remove all references to c-parse.gperf,
	c-gperf.h, and c-parse.h.  Remove -d from yacc command line
	generating c-parse.c.  Update dependencies.
	* c-parse.gperf, c-gperf.h: Delete.

	* c-common.c: Don't define parse_options, cpp_token, yy_cur,
	yy_lim, or yy_get_token.  Don't define get_directive_line if
	USE_CPPLIB.
	* c-common.h: Add multiple include guard.  Define RID values
	for every keyword in C, C++, and Objective C.  Put all the
	modifiers first.
	(struct c_fileinfo, get_fileinfo, dump_time_statistics): New.
	* c-decl.c (c_decode_option): Handle -lang-objc here.
	(print_lang_identifier): Handle C_IS_RESERVED_WORD case.
	(grokdeclarator): Adjust for new RID scheme.
	(extract_interface_info): New stub.
	* c-lang.c: Don't declare yy_cur or parse_options.
	(lang_init_options): Call cpp_init.  Don't call
	cpp_options_init.
	(lang_init): Don't call check_newline if USE_CPPLIB.

	* c-lex.c: Don't include c-parse.h.  Do include timevar.h.
	Elide lots of unnecessary code if USE_CPPLIB.  Delete code
	rendered unnecessary by new architecture.  Move routines not
	shared with C++ to c-parse.in.  Maintain a local idea of the
	line number.    Handle C++ as well as C.
	[USE_CPPLIB]: Declare and register callbacks for #ident and
	for entering/leaving files.
	(init_c_lex, c_lex): Are now the entry points to this file.
	(check_newline): Break out directive handling to
	process_directive.
	(read_ucs, is_extended_char, utf8_extend_token): Moved here
	from C++ front end.
	(readescape, parse_float): Overhaul.
	(lex_number, lex_string, lex_charconst): Break out of c_lex
	(n'ee yylex).
	(get_fileinfo, update_header_times, dump_one_header,
	dump_time_statistics): New and/or moved here from C++.
	Support per-file data needed by C++ and per-header timing
	statistics (C++ only, at the moment).
	* c-lex.h: Update prototypes.  Add multiple include guard.
	* c-tree.h (struct lang_identifier): Add rid_code field.
	(C_IS_RESERVED_WORD, C_RID_CODE): New.

	* c-parse.in: Include c-pragma.h. Remove unnecesary calls to
	reinit_parse_for_function and/or position_after_white_space.
	(save_filename, save_lineno): Look ahead before saving.
	(label -> identifier ':'): Save file and line before shifting ':'.
	(reservedwords): No need to call get_identifier.
	(init_parse, finish_parse, yyerror, yylex, yyprint,
	make_pointer_declarator): Are now here for C/ObjC.
	(rid_to_yy): Conversion table from RID constants to Yacc codes.

	* c-pragma.c: Rewrite parsing logic to fit with cpplib's
	#pragma registry.  Provide dummy implementation of that
	interface if !USE_CPPLIB.
	* c-pragma.h: Update to match.

	* flags.h: Add multiple include guard.
	(flag_detailed_statistics): Moved here from C++.
	* toplev.c: Define flag_detailed_statistics.

	* gcc.c (C specs): Use %(trad_capable_cpp) for -E|-M|-MM case
	#if USE_CPPLIB.
	* timevar.def (TV_CPP, TV_LEX): New.
	* timevar.h: Add multiple include guard.

	* objc/lang-specs.h: Use %(trad_capable_cpp) for -E|-M|-MM case
	#if USE_CPPLIB.
	* objc/objc-act.c: Don't mention yy_cur or parse_options.
	Initialize cpplib properly.  Force lineno to 0 after first
	call to check_newline.  Don't handle -lang-objc here.
	Move forget_protocol_qualifiers and remember_protocol_qualifiers here.

2000-09-06  David Edelsohn  <edelsohn@gnu.org>

	* rs6000.md: Correct function unit definitions for cr_logical and
	mtjmpr.
	(sCOND): Additionally fail for sgt, slt, sge, sle if !TARGET_POWER
	and use portable method for >=0 and floating point >=.  Remove
	associated matchers.

2000-09-06  Mark Mitchell  <mark@codesourcery.com>

	* extend.texi: Mark named return value extension as deprecated.

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

	* config/rs6000/rs6000.c (rs6000_reverse_condition): Return
	the result.

2000-09-06  Gabriel Dos Reis  <gdr@codesourcery.com>

	* toplev.c (display_help): Fix thinko in documentation.

	* diagnostic.h (output_buffer::indent_skip): New fields.
	(output_indentation): New macro.

	* diagnostic.c (output_indent): New function.
	(output_set_prefix, clear_diagnostic_info): Use.
	(output_emit_prefix): Predict future indentation.

2000-09-06  DJ Delorie  <dj@redhat.com>

	* Makefile.in (stage_*): add more dependencies to ensure parallel
	builds build correctly

2000-09-06  Manfred Hollstein  <manfredh@redhat.com>

	* Makefile.in (bootstrap-lean): Depend on bootstrap-lean_g,
	not bootstrap-lean_f.

2000-09-06  Andreas Schwab  <schwab@suse.de>

	* mklibgcc.in: Emit rule for libgcc-stage-start.
	* Makefile.in (stage1-start, stage2-start, stage3-start,
	stage4-start): Don't handle libgcc here, use libgcc.mk instead.

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

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

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

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

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

	* config/rs6000/rs6000.c (validate_condition_mode): New function.
	(branch_comparison_operator): Call validate_condition_mode to
	abort rather than returning 0.
	(branch_positive_comparison_operator): New function.
	(scc_comparison_operator): Call validate_condition_mode to abort
	rather than returning 0.
	(ccr_bit): Call validate_condition_mode.  Update for
	new branch scheme.
	(print_operand): Delete %C modifier.  Update %E case
	to use EQ bit not SO bit.
	(rs6000_reverse_condition): New function.
	(rs6000_generate_compare): New function.
	(rs6000_emit_sCOND): New function.
	(rs6000_emit_cbranch): New function.
	(output_cbranch): The length of a long branch insn is
	now only 8 bytes.  Add validate_condition_mode.  Use
	rs6000_reverse_condition.  Remove cror generation.

	* config/rs6000/rs6000.h: Update comments.
	(PREDICATE_CODES): Add new predicate.  Update codes used
	by branch_comparison_operator and scc_comparison_operator.
	* config/rs6000/rs6000-protos.h: Add prototypes for
	new external functions.
	* config/rs6000/rs6000.md: Add new scheduling parameters
	for cr_logical instructions.  Change length of branch
	instructions.
	(bCOND patterns): Call rs6000_emit_cbranch.
	(sCOND patterns): Call rs6000_emit_sCOND.
	(branch patterns): Change lengths to 4.
	(cr logical patterns): New.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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

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

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

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

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

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

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

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

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

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

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

	* fix-header.c (write_rbrac): Add putc and getc to list of
	functions to protect against prior definition as a macro.

2000-09-01  Joseph S. Myers  <jsm28@cam.ac.uk>

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	* contrib.texi: Add self.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	* reload.c: Fix formatting.

	* stmt.c: Fix formatting.

	* gcc.c: Fix formatting.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	* tree.c: Fix formatting.

	* xcoffout.c: Fix formatting.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	* flow.c (flow_loop_exit_edges_find): Rename from flow_loop_exits_find.
	(flow_loop_entry_edges_find): Add.
	(flow_edge_list_print): Rename from flow_exits_print.
	(flow_loops_find): Call flow_loop_entry_edges_find.
	(flow_loop_dump): Dump entry_edges list.
	(flow_loops_free): Free entry_edges.

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

	* loop.c (loop_dump_aux, debug_loop): New functions.
	(LOOP_BLOCK_NUM_1, LOOP_BLOCK_NUM, LOOP_INSN_UID): New macros.

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

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

	* toplev.c (rest_of_compilation): Add NULL callback function pointer
	to call to flow_loops_dump.

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

	* loop.c (count_loop_regs_set): Replace start and end arguments
	with loop argument.  All callers udated.

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

	* loop.c (constant_high_bytes): Delete.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	* cppfiles.c (read_include_file): Rearrange initializations.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	* diagnostic.h (flush_diagnostic_buffer): Declare.

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

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

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

	* Makefile.in (GCC_PASSES): Add specs.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	* config/arm/lib1funcs.asm (ARM_DIV_MOD_BODY): New macro.
	Common code for ARM divide and modulus functions.
	(THUMB_DIV_MOD_BODY): New macro. Thumb equivalent of
	ARM_DIV_MOD_BODY.
	(FUNC_END): New macro: Common code at the end of the division and
	modulo functions.
	(THUMB_FUNCTION_START): New macro:  Common code at the start of
	Thumb functions.
	(__divsi3, __udivsi3, __modsi3, __umodsi3): Use new macros.

Tue Aug 22 20:34:52 2000  Kaz Kojima <kkojima@rr.iij4u.or.jp>

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

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

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

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

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

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

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

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

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

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

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

	* Makefile.in (OBJS): Add dependence.o.
	* dependence.c: New file.

2000-08-22  Alexandre Oliva  <aoliva@redhat.com>, John David Anglin  <dave.anglin@nrc.ca>

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	* cpp.texi: Add @section for assertions.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	* regmove.c (perhaps_ends_bb_p): New function.
	(optimize_reg_copy_1, optimize_reg_copy_2): Call it.
	(optimize_reg_copy_3, fixup_match_2, regmove_optimize): Likewise.
	(fixup_match_1): Likewise.
	(fixup_match_1, combine_stack_adjustments_for_block): Add casts to
	avoid signed/unsigned warnings.

	* function.c (fixup_var_refs_1, case MEM): Update CODE after
	updating X.

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

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

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

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

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

	* system.h (HAVE_DESIGNATED_INITIALIZERS): New prototype.

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

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

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

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

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

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

	* rtl.h (unchanging): Improve documentation.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Tue Aug 15 00:36:36 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

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

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

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

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

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

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

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

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

	* cse.c (fold_rtx): Avoid empty body in an if-statement.

	* doloop.c (doloop_iterations_max, doloop_modify): Avoid using the
	`U' integer constant suffix.

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

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

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

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

	* longlong.h: Test ARCH_PWR not ARCH_POWER.

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

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

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

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

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

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

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

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

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

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

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