path: root/gcc/ChangeLog

2000-10-01  Andrew MacLeod  <amacleod@redhat.com>

	* dwarf2out.c (loc_descriptor): use SUBREG_REG to get the register.
	* emit-rtl.c (gen_lowpart_common, gen_imagpart): Spacing nits.
	(gen_highpart, constant_subword, operand_subword): Spacing nits.
	* function.c (purge_single_hard_subreg_set): Correct last change, find
	correct offsets for subreg.
	* reload.c (push_reload): Replace missing clause.

2000-09-30  Andrew MacLeod  <amacleod@redhat.com>

	* function.c (purge_single_hard_subreg_set): Dont use SUBREG_WORD.
	* recog.c (validate_replace_rtx_1): Use SUBREG_BYTE.
	* reload.c (reload_inner_reg_of_subreg): SUBREG_REGNO should be used
	on the entire subreg rtx.
	* config/i960/i960.md (zero_extendqihi2): SUBREG's are byte offsets.
	* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Don't use SUBREG_WORD.

2000-05-04  Jakub Jelinek  <jakub@redhat.com>

	* emit-rtl.c (gen_lowpart_common): Return inner SUBREG
	if it is lowpart SUBREG, not when SUBREG_BYTE is 0.

	* flow.c (mark_set_1): Remove ALTER_HARD_SUBREG. Use
	SUBREG_REGNO_OFFSET instead.
	* config/d30v/d30v.c (d30v_split_double): Use SUBREG_REGNO_OFFSET
	instead of SUBREG_WORD.
	(d30v_print_operand_memory_reference): Likewise.

	* ssa.c (coalesce_regs_in_copies): Use ! subreg_lowpart_p instead of
	checking SUBREG_WORD != 0.

	* cse.c (remove_invalid_subreg_refs): Change offset argument type to
	unsigned int.
	* ssa.c (rename_insn_1): Use subreg_lowpart_p instead of checking
	SUBREG_WORD == 0.
	(rename_equivalent_regs_in_insn): Likewise.
	* rtl.h (SUBREG_BYTE): Change to XCUINT from XCINT.
	* emit-rtl.c (subreg_hard_regno): Make byte_offset, base_regno and
	final_regno unsigned.
	(subreg_lowpart_p): Likewise with offset.
	(operand_subword): Likewise for partwords.

	* config/sparc/sparc.md (cmp_siqi_trunc, cmp_siqi_trunc_set,
	cmp_diqi_trunc, cmp_diqi_trunc_set, lshrdi3_v8plus+1,
	lshrdi3_v8plus+2, lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
	SUBREG_BYTE offset for non-paradoxical subregs in patterns.

	* emit-rtl.c (gen_lowpart_SUBREG): New function.
	* rtl.h (gen_lowpart_SUBREG): Add prototype.
	* calls.c (precompute_arguments): Use it.
	* expr.c (store_expr, expand_expr): Likewise.
	* regmove.c (optimize_reg_copy_3): Likewise.
	* reload1.c (emit_reload_insns): Likewise.
	* stmt.c (expand_anon_union_decl): Likewise.

	* rtl.texi: Remove all traces of SUBREG_WORD.
	* reload.c (push_reload): Fix test for the new SUBREG_BYTE semantics.
	* config/sparc/sparc.md (zero_extendhidi2, extendqidi2, extendhidi2):
	Compute SUBREG_BYTE offset based on DImode, not SImode.

	* function.c (assign_params): Mark arguments SUBREG_PROMOTED_VAR_P
	if they are actually promoted by the caller and
	PROMOTE_FOR_CALLS_ONLY is true. Otherwise combiner will not know
	that their bits are already guaranteed to be zero or sign copies.

	* emit-rtl.c (constant_subword): Don't abort if
	float bitsize is larger than 64 bits on 64bit host.

	* config/sparc/sparc.h (REG_SIZE): For SUBREG check float mode on
	SUBREG_REG's mode.
	* combine.c (simplify_rtx): For two nested SUBREGs if the mode of
	the inner SUBREG is larger than both other modes we cannot simply
	add both SUBREG_BYTEs on big endian.
	(make_extraction): If BYTES_BIG_ENDIAN take the last few bytes
	of the register, not first.
	* calls.c (expand_call): For non-paradoxical SUBREG take endianess
	into account.
	
	* config/alpha/alpha.c (print_operand_address): Fix typo.
	* config/mips/mips.c (mips_move_1word, mips_move_2words,
	mips_secondary_reload_class): SUBREG_REGNO_OFFSET macro
	requires four arguments.
	* config/pyr/pyr.c (consecutive_operands): Likewise.
	* config/sh/sh.c (regs_used, machine_dependent_reorg): Likewise.

	* java/javaop.h: Default int32 to int, not long. Fix comment.
	* emit-rtl.c (subreg_hard_regno): Till we remove the extensive
	checks in subreg_hard_regno, propagate info on whether
	HARD_REGNO_MODE_OK is allowed to fail.
	* combine.c (simplify_rtx): Don't abort if SUBREG has
	incompatible modes outside and inside.
	* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
	to pass new argument.
	* final.c (alter_subreg): Likewise.
	* local-alloc.c (reg_is_born): Likewise.
	* rtl.h (subreg_hard_regno): Update prototype.

	* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE
	instead of SUBREG_WORD.
	* config/ns32k/ns32k.md (udivmoddihi4): Fix explicit subregs in
	rtl to use byte offsets.
	* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE, not
	SUBREG_WORD.
	* config/sparc/sparc.h (REG_SIZE): Handle SUBREG arguments.
	* emit-rtl.c (subreg_realpart_p): Changed to use SUBREG_BYTE.
	* integrate.c (copy_rtx_and_substitute): Use byte SUBREG offsets
	in CONCAT handling.
	* reload.c (find_reloads_subreg_address): Use SUBREG_BYTE.  Remove
	byte endian corrections when fixing up MEM subregs.
	* resource.c (update_live_status): Use SUBREG_REGNO.
	
1998-10-03  David S. Miller  <davem@pierdol.cobaltmicro.com>

	Use byte offsets in SUBREGs instead of words.
	* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
	(SUBREG_REGNO_OFFSET, SUBREG_REGNO): New macros.
	(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): New
	functions.
	* gengenrtl.c (special_rtx): Add SUBREG.
	* regs.h (REG_SIZE): Allow target to override.
	(REGMODE_NATURAL_SIZE): New macro which target can override.
	* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
	* rtl.texi (subreg): Update to reflect new byte offset
	representation.  Add mentioning of the effect that
	BYTES_BIG_ENDIAN has on subregs now.
	* final.c (alter_subreg) [REG]: Remove ALTER_HARD_SUBREG
	commentary and usage.  Use subreg_hard_regno instead.
	[MEM]: Remove endianness corrections and use SUBREG_BYTE.
	Check for bogus SUBREG_BYTE values.
	* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
	certain invariants about SUBREGs the compiler creates.
	(subreg_hard_regno): New function.
	(gen_lowpart_common): Adjust offset for BYTES_BIG_ENDIAN too.
	[SUBREG]: When combining two subregs, make sure final offset is a
	multiple of the SUBREG's mode.
	[REG]: Remove sparc64 hard regno wordaround.  Simplify rest of the
	code and use SUBREG_REGNO_OFFSET.
	[CONST_INT, CONST_DOUBLE]: Call constant_subword.
	(subreg_realpart_p): Use SUBREG_BYTE.
	(gen_lowpart): Pretty.
	(gen_highpart) [MEM]: Pretty.
	[SUBREG]: Use SUBREG_BYTE.
	[REG]: Remove sparc64 hard regno hacks.  Adjust offset for
	BYTES_BIG_ENDIAN too.  Use SUBREG_REGNO_OFFSET for hard regs.
	(subreg_lowpart_p): Always compute endian corrected goal offset,
	even at the byte level, then compare against that.
	(constant_subword): New function, pulled out all constant cases
	from operand_subword and changed second argument name to offset.
	(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
	and call constant_subword to do the work.
	[REG]: Use SUBREG_REGNO_OFFSET for hard regnos.
	[SUBREG]: When combining two subregs, make sure final offset is a
	multiple of the SUBREG's mode.
	(operand_subword_force): Change second arg name to offset.  Abort
	early if reload is done and this is called.
	* cse.c (mention_regs): Use SUBREG_BYTE.
	(remove_invalid_subreg_refs): Second arg now named offset and is a
	byte offset as per SUBREG_BYTE.  Rework to use byte ranges and
	comparison checks.
	(canon_hash): Use SUBREG_BYTE.
	(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to
	operand_subword.
	(gen_lowpart_if_possible): Pretty.
	(cse_insn): Fix conditional formatting.
	* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
	correctly.
	* expmed.c (store_big_field): Use SUBREG_BYTE.
	(extract_bit_field): Likewise.
	(extract_split_bit_field): Likewise.
	(expand_shift): Likewise.
	* flow.c (life_analysis_1): Likewise.
	* global.c (mark_reg_store): Remove word local and commented out
	code which used it.
	(mark_reg_clobber): Likewise.
	(set_preference): Rework to use SUBREG_REGNO_OFFSET,
	REGMODE_NATURAL_SIZE and SUBREG_BYTE where appropriate.
	* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
	(simplify_rtx): Do not fixup byte endianness of subregs, the
	SUBREG_BYTE contains the correct offset.  When substituting two
	subregs into each other still compare against word equality for
	the fast case, but otherwise make the final offset congruent to
	the mode of the subreg.  Also use subreg_hard_regno to compute the
	hard regno of a subreg.  Rework the rest to use SUBREG_BYTE.  This
	function is too large.
	(simplify_set): Rework to use SUBREG_BYTE, also fixup another
	explicit XEXP into a SUBREG_REG.
	(expand_field_assignment): Use SUBREG_BYTE.
	(make_extraction): Likewise.
	(apply_distributive_law): Likewise and fixup subreg comments.
	(gen_lowpart_for_combine): Compute full byte offset.
	* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
	(mem_loc_descriptor): Likewise.
	(loc_descriptor): Likewise.
	* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
	(output_mem_loc_descriptor): Likewise.
	(output_loc_descriptor): Likewise.  This and the previous file
	have a lot of common duplicated code.
	* caller-save.c (set_reg_live): Use subreg_hard_regno and tweak.
	* jump.c (rtx_renumbered_equal_p): Use new subreg byte offsets,
	and SUBREG_REGNO_OFFSET where appropriate.  Also fix bug where
	reg_y was not subreg correctified for the subreg case.
	(true_regnum): Use SUBREG_REGNO_OFFSET.
	* function.c (fixup_var_refs_1): Fixup explicit XEXP into
	a SUBREG_REG.
	(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
	correction code.
	(optimize_bit_field): Use SUBREG_BYTE.
	* haifa-sched.c (print_value): Likewise.
	* integrate.c (copy_rtx_and_substitute): Likewise and make sure
	final byte offset is congruent to subreg's mode size.
	(subst_constants): Use SUBREG_BYTE.
	(mark_stores): Use SUBREG_REGNO_OFFSET for hard regs.
	* local-alloc.c (combine_regs): Rework to use SUBREG_REGNO_OFFSET,
	SUBREG_BYTE and REGMODE_NATURAL_SIZE.
	(reg_is_born): Use subreg_hard_regno.
	* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
	endian correction code.
	(indirect_operand): Likewise.
	(general_operand): Remove dead mode_altering_drug code.
	(constrain_operands): Use SUBREG_REGNO_OFFSET.
	* reg-stack.c (mark_regs_pat): Use SUBREG_REGNO.  Abort if we see
	a pseudo reg here.
	(get_true_reg): Use SUBREG_REGNO_OFFSET.
	* regmove.c (regmove_optimize): Use SUBREG_BYTE.
	* reload.c (push_reload): Use SUBREG_BYTE in comments and code.
	Also use SUBREG_REGNO_OFFSET and SUBREG_REGNO where appropriate.
	(find_dummy_reload): Use SUBREG_REGNO_OFFSET.  Only adjust offsets
	for hard registers inside subregs.
	(operands_match_p): Likewise.
	(find_reloads): Only advance offset for subregs containing hard
	regs.  Remove "can work with subregging" final condition when
	setting force_reload, it no longer makes sense with byte
	offsettable subregs.  Fix another XEXP into a SUBREG_REG.
	(find_reload_toplev): Use SUBREG_BYTE.  Remove byte endian
	corrections when fixing up MEM subregs.
	(find_reloads_addres_1): Use SUBREG_BYTE, SUBREG_REGNO, and
	SUBREG_REGNO_OFFSET where appropriate.
	(subst_reloads): When combining two subregs, make sure final
	offset is congruent to subreg's mode size.
	(find_replacement): Likewise, also use SUBREG_BYTE and
	SUBREG_REGNO_OFFSET where appropriate.
	(refers_to_regno_for_reload_p): Use SUBREG_REGNO.
	(reg_overlap_mentioned_for_reload_p): Use SUBREG_REGNO_OFFSET.
	* reload1.c (eliminate_regs) [SUBREG]: Use SUBREG_BYTE, fixup
	another explicit XEXP into a SUBREG_REG.  Remove byte endian
	correction code for memory subreg fixups.
	(forget_old_reload_1): Use SUBREG_REGNO_OFFSET.
	(choose_reload_regs): Use SUBREG_REGNO.
	(emit_reload_insns): Use SUBREG_BYTE.
	(reload_combine_note_store): Use SUBREG_REGNO_OFFSET.
	(move2add_note_store): Use SUBREG_REGNO_OFFSET.
	* reorg.c (mark_referenced_resources): Use SUBREG_REGNO.
	* rtlanal.c (refers_to_regno_p): Use SUBREG_REGNO.
	(reg_overlap_mentioned_p): Likewise.
	(replace_regs); Make sure final offset of combined subreg is
	congruent to size of subreg's mode.
	* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.

	Target changes for new subregging representation.
	* config/a29k/a29k.c (gpc_reg_operand): Use SUBREG_REGNO.
	(a29k_get_reloaded_address): Use SUBREG_BYTE.
	(print_operand): Use SUBREG_BYTE.
	* config/alpha/alpha.c (get_aligned_mem): Use SUBREG_BYTE and
	remove byte endianness corrections.
	(get_unaligned_address): Likewise.
	* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
	SUBREG creation to use byte offset.
	* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
	inverted load insns): Fix explicit rtl subregs to use byte
	offsets.
	* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
	udivsi3, umodsi3): Generate SUBREGs with byte offsets.
	* config/i386/i386.md (HImode zero extend split): Use
	SUBREG_BYTE.
	* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
	* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
	to use byte offsets.
	(unnamed fmlow.dd insn): Likewise.
	* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
	offsets, also make sure it is congruent to SUBREG's mode size.
	(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
	unnamed ldob insn): Likewise.
	* config/m32r/m32r.md (extendqihi2, extendqisi2, extendhisi2):
	Likewise.
	* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
	zero-extendqisi2): Likewise.
	(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
	subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
	surbegs in rtl to use byte offsets.
	* config/m88k/m88k.md (extendsidi2): Likewise.
	* config/mips/mips.c (mips_move_1word): Use SUBREG_REGNO_OFFSET.
	(mips_move_2words, mips_secondary_reload_class): Likewise.
	* config/mips/mips.md (DImode plus, minus, move, and logical op
	splits): Fixup explicit subregs in rtl to use byte offsets.
	* config/mn10200/mn10200.c (print_operand) [SUBREG]: Use
	SUBREG_REGNO and fix a reg_names indice bug.
	* config/mn10300/mn10300.c (print_operand) [SUBREG]: Likewise.
	* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
	rtl to use byte offsets.
	* config/pa/pa.md (floatunssisf2, floatunssidf2): Likewise.
	(mulsi3): Make subregs with byte offsets.
	* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
	Fixup explicit subregs in rtl to use byte offsets.
	* config/pyr/pyr.c (subreg_overlap_mentioned_p): Use SUBREG_REGNO.
	(consecutive_operands): Use SUBREG_REGNO_OFFSET.
	* config/pyr/pyr.md (extendsidi2): Fixup explicit subregs in rtl
	to use byte offsets.
	* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
	and remove byte endian correction code.
	* config/rs6000/rs6000.md (DImode const splits): Generate SUBREGs
	with byte offsets.
	* config/sh/sh.c (output_movedouble): Use SUBREG_REGNO.
	(gen_ashift_hi): Use SUBREG_BYTE.
	(regs_used): Use SUBREG_REGNO_OFFSET.
	(machine_dependent_reorg): Likewise.
	* config/sh/sh.md (DImode and DFmode move splits): Use
	SUBREG_REGNO.
	* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
	with byte offsets.
	(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
	extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
	extendqidi2): Generate SUBREGs with byte offsets, also make sure
	it is congruent to SUBREG's mode size.
	(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
	offsets.
	* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
	* config/sparc/sparc.h (ALTER_HARD_SUBREG): Die forever...
	(REG_SIZE, REGMODE_NATURAL_SIZE): Override.
	* config/spur/spur.md (movqi, zero_extendhisi2, extendhisi2,
	extendqihi2, extendqisi2): Generate SUBREGs with byte offsets.
	* config/v850/v850.c (print_operand): Use SUBREG_REGNO.
	(v850_reorg): Use SUBREG_REGNO_OFFSET.


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  Will Cohen  <wcohen@redhat.com>

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

	* c-typeck.c (process_init_element): Flag initializers for zero
	length arrays.

	* tree.c (integer_all_onesp): Ignore TREE_INT_CST_HIGH if prec is
	exactly HOST_BITS_PERWIDE_INT.

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.

2000-08-13  Ralf Gütlein <ralf.guetlein@aranea.de>

	* h8300.md: Remove obsolete peepholes.

2000-08-13  Kazu Hirata  <kazu@hxi.com>

	* invoke.texi (H8/300 Options): Fix typos.
	* config/h8300.c: Fix formatting.
	* config/h8300.h: Fix comment typos.
	(OVERRIDE_OPTIONS): Fix formatting.

	* function.c: Fix formatting.

	* cse.c: Fix formatting.

2000-08-13  Geoff Keating  <geoffk@cygnus.com>

	* flow.c (attempt_auto_inc): Remove unused variable `bb'.
	(attempt_auto_inc): Suppress parentheses warning.
	* function.c (put_reg_into_stack): Remove unused variable `unsigned_p'.
	* loop.c (load_mems): Remove `u' suffix in two places.
	* config/rs6000/rs6000.c: Remove unnecessary `u' suffixes from
	hex constants.
	* config/rs6000/rs6000.h: Likewise.
	* config/rs6000/sol-c0.c: Prototype some functions.  Remove the
	__eabi dummy routine.
	* config/rs6000/sysv4.h (ASM_DECLARE_FUNCTION_NAME): Remove unused
	variable `buf_ptr'.

	* config/rs6000/rs6000.c (rs6000_select_section): Rewrite to
	not put stuff in .sdata unnecessarily.
	(rs6000_unique_section): New function.
	* config/rs6000/rs6000-protos.h: Add rs6000_unique_section.
	* config/rs6000/sysv4.h (UNIQUE_SECTION): Define.

	* c-typeck.c (build_array_ref): Don't complain about non-lvalue
	arrays in C99.  Don't try to look at DECL_REGISTER of a
	COMPONENT_REF.  Don't complain twice about the same error.

	* fixinc/inclhack.def (aix_pthread): New fix.
	(aix_sysmachine): New fix.
	* fixinc/fixincl.x: Regenerate.

	* expr.c (expand_expr): Call convert_modes when turning a large
	multiply into a small one.

2000-08-12  Geoff Keating  <geoffk@cygnus.com>

	* tree.h (DECL_OFFSET_ALIGN): Make the off_align field of
	the tree structure an exponent rather than an explicit alignment
	so it doesn't overflow.
	(SET_DECL_OFFSET_ALIGN): New macro.
	* stor-layout.c (place_union_field): Use SET_DECL_OFFSET_ALIGN
	rather than DECL_OFFSET_ALIGN.
	(place_field): Likewise.
	* expmed.c (store_bit_field): Abort on align==0 to avoid
	antisocial machine behaviour.

2000-08-12  Richard Henderson  <rth@cygnus.com>

	* sibcall.c (uses_addressof): Accept both addressof and
	current_function_internal_arg_pointer inside a mem.
	(optimize_sibling_and_tail_recursive_call): Fail tail recursion
	if current_function_uses_addressof.
	* stmt.c (expand_return): Kill tail recursion and HAVE_return
	optimizations.

2000-08-11  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.md (addsi3): Remove expander.
	(subsi3, mulsi3, negsi2, one_cmplsi2): Likewise.
	(*addsi3_shladd): New.

2000-08-11  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.c (do_spill): Pass cfa offset to move expander.
	(do_restore): Likewise.
	(gen_movdi_x, gen_fr_spill_x, gen_fr_restore_x): New.
	(ia64_expand_prologue, ia64_expand_epilogue): Use them.
	(rtx_needs_barrier): Track actual bit manipulation for
	ar.unat moves, gr_spill, and gr_restore.
	(emit_insn_group_barriers): Special case gr_spill/gr_restore.
	(process_set): Don't handle varargs spills.
	* config/ia64/ia64.md (gr_spill): Accept cfa offset.  Emit
	.mem.offset here instead of in process_set.
	(gr_restore): Likewise.

2000-08-11  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.h (PROMOTE_MODE): Only extend to SImode.

2000-08-11  Mark Elbrecht  <snowball3@bigfoot.com>

	* gcc.texi (The Configuration File): Document
	COLLECT2_HOST_INITIALIZATION, GCC_DRIVER_HOST_INITIALIZATION, and
	UPDATE_PATH_HOST_CANONICALIZATION.

2000-08-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-parse.in (cast_expr): Avoid -Wstrict-prototype warnings for
	unprototyped function pointer casts on integer constants.

2000-08-11 Laurynas Biveinis <lauras@softhome.net>

	* fixproto: Recognize DOS paths with drive letters as absolute paths.

2000-08-11  Nathan Sidwell  <nathan@codesourcery.com>

	* extend.texi (Volatiles): Fix typos.

2000-08-11  Kazu Hirata  <kazu@hxi.com>

	* flow.c: Fix formatting.

2000-08-11  Richard Henderson  <rth@cygnus.com>

	* reload.c (push_secondary_reload): When invoking a reload_{in,out}
	pattern, always allocate a tertiary scratch register.

	* config/alpha/alpha.md (reload_inqi): Use a DImode scratch.
	(reload_inhi): Likewise.

2000-08-11  Richard Henderson  <rth@cygnus.com>

	* function.c (put_reg_into_stack): Allow type to be NULL.
	(schedule_fixup_var_refs): Likewise.
	(gen_mem_addressof): Allow decl to be NULL.
	(put_addressof_into_stack): Likewise.

	* flow.c (merge_blocks_nomove): Be more careful about
	locating the beginning of block A.

	* combine.c (simplify_shift_const): Obey SHIFT_COUNT_TRUNCATED.

Thu Aug 10 22:47:09 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

	* configure.in:
	* configure:
	* gthr-posix.h:
	* config.in: Reverted the check for <sched.h>.

2000-08-10  Chris Demetriou  <cgd@sibyte.com>

	* mips/elf.h (CTOR_SECTION_NAME, DTOR_SECTION_NAME): New
	macros define the name of CTOR and DTOR sections.
	(CTOR_LIST_BEGIN, CTOR_LIST_END, DTOR_LIST_BEGIN,
	DTOR_LIST_END): Change to use attributes to specify
	sections.
	* mips/elf64.h (CTOR_SECTION_NAME, DTOR_SECTION_NAME,
	(CTOR_LIST_BEGIN, CTOR_LIST_END, DTOR_LIST_BEGIN,
	DTOR_LIST_END): Same as in mips/elf.h.

2000-08-10  Drew Moseley  <dmoseley@redhat.com>

	* config/mn10300/mn10300.h: Added no-crt0 option for explicitly
	disabling just crt0.o.

2000-08-10  Richard Earnshaw <rearnshaw@arm.com> & Nick Clifton  <nickc@cygnus.com>

	* arm.h (CPP_SPEC): Use sub-spec cpp_interwork.
	(CPP_INTERWORK_SPEC, CPP_INTERWORK_DEFAULT_SPEC): New sub-specs.
	(EXTRA_SPECS): Add them.
	* arm/lib1funcs.asm: Support builds for interworking.
	Use macros to eliminate duplicated pieces of code.

2000-08-10  Kazu Hirata  <kazu@hxi.com>

	* h8300.c (expand_a_rotate): New.
	(emit_a_rotate): Likewise.
	(h8300_adjust_insn_length): Add support for the rotate insns.
	* h8300.md (rotlqi3): New.
	(*rotlqi3_1): Likewise.
	(rotlhi3): Likewise.
	(*rotlhi3_1): Likewise.
	(rotlhi3): Likewise.
	(*rotlhi3_1): Likewise.
	* h8300-proto.h: Add prototypes for expand_a_rotate and
	emit_a_rotate.

	* h8300.c: Fix comment typos.
	(dosize): Declare the variable amount as unsigned.
	(get_shift_alg): Fix a comparison between signed and unsigned.
	(emit_a_shift): Likewise.
	(h8300_adjust_insn_length): Simplify the code.

	* c-decl.c: Fix formatting.

2000-08-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-lex.c (parse_float, yylex): For -Wtraditional, issue a
	warning about non-traditional numeric constant suffixes.

	* cppexp.c (parse_number): Likewise.

	* invoke.texi: (-Wtraditional): Document new behavior.

Thu Aug 10 00:11:04 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

	* gthr-posix.h: Include auto-host.h. Conditionally include
	<sched.h>.
	* configure.in: Check for the <sched.h> header file.
	* config.in: Added define for HAVE_SCHED_H.

2000-08-09  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-typeck.c (process_init_element): For -Wtraditional, warn about
	initialization of unions.

	* invoke.texi (-Wtraditional): Document new behavior.

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

	* configure.in (--enable-c-cpplib): Uncomment.  Use AC_DEFINE
	instead of extra_c_flags.
	(--enable-c-mbchar): Use AC_DEFINE instead of extra_c_flags.
	* configure: Regenerate.
	* config.in: Regenerate.

	* cpperror.c (cpp_type2name): New function.
	* cpplex.c (lex_line): If we issued an error for an invalid
	preprocessing directive, discard that logical line.
	* cpplib.c (do_line): Call a hook function if the current file
	is renamed by #line.
	(do_ident): Pass the contents of the string, not the entire
	token, to the callback function.
	* cpplib.h (CPP_LAST_PUNCTUATOR): New #define.
	(cb.rename_file): New hook function.
	(cb.ident): Adjust prototype.
	(cpp_type2name): Prototype.
	* cppmacro.c (dump_macro_args): Correct precedence lossage.

	* cppmain.c (cb_ident): Update for changed interface.
	(cb_rename_file): New function.
	(main): Set rename callback.

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

	* caller-save.c (mark_referenced_regs): Mark partially-overwritten
	multi-word registers.

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

	* c-common.c (combine_strings, check_format_info): Refer to ISO C
	or ISO C89 instead of ANSI C.
	* c-decl.c (grokdeclarator, xref_tag, finish_struct,
	build_enumerator, do_case): Likewise.
	* c-lex.c (parse_float, yylex): Likewise.
	* c-parse.in: Likewise.
	* c-typeck.c (common_type, build_array_ref, build_binary_op,
	build_unary_op, pedantic_lvalue_warning, build_conditional_expr,
	build_c_cast, convert_for_assignment, set_init_index,
	set_init_label, c_expand_start_case): Likewise.
	* toplev.c (documented_lang_options, display_help): Likewise.

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

	* h8300.c: Fix formatting.
	* h8300.h: Likewise.
	* h8300.md: Likewise.
	(movsi_h8300hs): Fix formatting of the resulting assembly code.

	* reload1.c: Fix formatting.

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

	* alpha/alpha.c (alpha_emit_xfloating_libcall):
	Use GEN_CALL_VALUE define.
	* alpha/alpha.md (untyped_call): Use GEN_CALL define.
	* clipper/clipper.md (untyped_call): Likewise.
	* dsp16xx/dsp16xx.md (untyped_call): Likewise.
	* fx80/fx80.md (untyped_call): Likewise.
	* mips/mips.md (untyped_call): Likewise.
	* ns32k/ns32k.md (untyped_call): Likewise.
	* pa/pa.md (untyped_call): Likewise.
	* romp/romp.md (untyped_call): Likewise.
	* sparc/sparc.md (untyped_call): Likewise.

2000-08-08  Jason Eckhardt  <jle@cygnus.com>

	* config/i860/i860.c (singlemove_string): Do not generate assembler
	pseudo instructions that must be expanded (that is, with signed
	constants larger than 16 bits).

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

	* flow.c (life_analysis): Only turn off PROP_LOG_LINKS and
	PROP_AUTOINC at -O0.  Don't collect alias info at -O0.
	(init_propagate_block_info): Don't kill memory stores at -O0.
	(mark_set_1, mark_used_regs): Likewise.

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

	* rs6000.c (optimization_options): Decorate 'level' as
	ATTRIBUTE_UNUSED.
	(mask64_operand): Remove sign-extend thinko.
	(rldic_operand): New function.
	(load_multiple_operation): regno's are unsigned ints.
	(store_multiple_operation): Likewise.
	(lmw_operation): Likewise.
	(stmw_operation): Likewise.
	(includes_lshift_p): shift_mask is unsigned int.
	(includes_lshift64_p): New function.
	(addrs_ok_for_quad_peep): unsigned int reg1.
	(print_operand): Consistently add "else" after
	output_operand_lossage().
	(print_operand, case 'b'): Fold in case 'W'.
	(print_operand, case 'W'): Print rldic MB value.
	(output_epilogue): Update Objective-C language string.
	(output_toc): unsigned HOST_WIDE_INT low, compare unsigned.
	* rs6000.h (PREDICATE_CODES): Add rldic_operand.
	* rs6000.md (ashldi3): Add rldic instruction.
	(iordi3, xordi3): Remove redundant "else if CONST_DOUBLE".
	(cmpsi_internal2, cmpdi_interal2): Use 'b' output template
	modifier.

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

	* config/ia64/ia64-protos.h: Remove duplicates.  Update
	for massive code rearrangements.
	* config/ia64/ia64.c (ia64_arpfs_regno): Remove.
	(ia64_rp_regno, ia64_fp_regno, ia64_input_regs): Remove.
	(ia64_local_regs, ia64_need_regstk): Remove.
	(ar_ccv_reg_operand): New.
	(ia64_gp_save_reg): New.
	(struct ia64_frame_info): Combine most of the size elements;
	add new gr save elements.
	(find_gr_spill): New.
	(next_scratch_gr_reg): New.
	(mark_reg_gr_used_mask): New.
	(ia64_compute_frame_size): Rewrite.  Allocate special AR regs
	to GR backing store regs when possible.
	(ia64_initial_elimination_offset): New.
	(ia64_rap_fp_offset): Remove.
	(save_restore_insns): Remove.
	(setup_spill_pointers): New.
	(finish_spill_pointers): New.
	(spill_restore_mem): New.
	(do_spill, do_restore): New.
	(ia64_expand_prologue): Rewrite to use them.
	(ia64_expand_epilogue): Likewise.
	(ia64_direct_return): Update for current_frame_info changes.
	(ia64_function_prologue): Simplify .prologue emission.  Emit
	.spill when needed.
	(ia64_setup_incoming_varargs): Don't ever emit rtl.
	(ia64_dbx_register_number): New.
	(ia64_initialize_trampoline): New.
	(ia64_secondary_reload_class): Request GR_REGS for integer
	arithmetic destined for FR_REGS.
	(ia64_init_machine_status): Don't reset return_address_pointer_rtx.
	(ia64_mark_machine_status): Mark ia64_gp_save.
	(rws_access_regno): Rename from rws_access_reg; don't treat
	predicates specially.
	(rws_access_reg): New.  Update all callers.
	(rtx_needs_barrier): Remove dead unspecs.
	(ia64_epilogue_uses): Mark ar.pfs and ar.unat live on exit.
	(ia64_encode_section_info): Silence signed/unsigned warnings.
	(spill_offset, sp_offset, spill_offset_emitted): Remove.
	(tmp_reg, tmp_saved): Remove.
	(process_set): Rewrite to expect complicated bits via
	REG_FRAME_RELATED_EXPR.
	(ia64_expand_fetch_and_op): Use emit_move_insn; be explicit
	in the use of ar.ccv; never set RTX_UNCHANGING_P.
	(ia64_expand_op_and_fetch): Likewise.
	(ia64_expand_compare_and_swap): Likewise.
	(ia64_expand_builtin): Likewise.
	* config/ia64/ia64.h (AR_UNAT_REGNUM): New.
	(FIRST_PSEUDO_REGISTER): Update.
	(AR_M_REGNO_P): Update.
	(FIXED_REGS): Don't mark three local registers as used.
	(EXTRA_CC_MODES): New.
	(SELECT_CC_MODE): New.
	(HARD_REGNO_NREGS): Allow DImode in p0; handle CCImode.
	(HARD_REGNO_MODE_OK): Disallow CCImode from non-predicates.
	(FRAME_GROWS_DOWNWARD): Unset.
	(STARTING_FRAME_OFFSET): Zero.
	(ELIMINABLE_REGS): Eliminate from the soft to hard frame pointer.
	(INITIAL_ELIMINATION_OFFSET): Defer to out of line function.
	(HARD_FRAME_POINTER_REGNUM): New.
	(CAN_DEBUG_WITHOUT_FP): Define.
	(TRAMPOLINE_TEMPLATE): Remove.
	(TRAMPOLINE_SIZE): Lower to 32.
	(TRAMPOLINE_ALIGNMENT): Lower to 64.
	(INITIALIZE_TRAMPOLINE): Defer to out of line function.
	(PREDICATE_CODES): Update.
	(struct machine_function): Add ia64_gp_save.
	* config/ia64/ia64.md: Purge unused unspecs.
	(movsi patterns): Allow moves to/from AR_M_REGS.
	(movdi patterns): Allow moves to/from p0.
	(call patterns): Move most setjmp hackery to ia64_gp_save_reg.
	(gr_spill, gr_restore): Indicate ar.unat read/written.
	(nonlocal_goto): Don't pass old frame_pointer.
	(nonlocal_goto_receiver): Remove.
	(exception_receiver): New.
	(builtin_setjmp_setup): New.
	(builtin_setjmp_receiver): New.
	* config/ia64/lib1funcs.asm (__ia64_save_stack_nonlocal): Bundle.
	(__ia64_nonlocal_goto): Bundle.  Don't kill r7.
	(__ia64_restore_stack_nonlocal): Likewise.
	(__ia64_trampoline): New.
	* config/ia64/sysv4.h (DBX_REGISTER_NUMBER): Defer to out of line
	function.
	* config/ia64/t-ia64 (LIB1ASMFUNCS): Add __trampoline.

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

	* frame.h (ia64_frame_state): Add my_psp.
	* libgcc2.c (ia64_throw_helper): Add throw_sp argument.
	(__throw): Pass it in.  Don't clobber r7.
	* config/ia64/frame-ia64.c (init_ia64_reg_loc): Mark inline.
	(execute_one_ia64_descriptor) [mem_stack_v]: Sets psp.when
	and nothing to do with sp.
	(normalize_reg_loc): Use frame->my_psp.
	(frame_translate): Handle frame-pointer-less functions.  Set
	spill_base correctly, in absence of being told.
	(__build_ia64_frame_state): New sp argument.  Fill in frame->my_sp.
	(__ia64_backtrace_helper): New sp argument.  Use
	builtin_return_address instead of label addresses.
	(print_record) [mem_stack_v]: No size member.

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

	* regclass.c (choose_hard_reg_mode): Iterate over all CC modes.

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

	* tm.texi (LOCAL_REGNO): Document.
	* flow.c (LOCAL_REGNO, EPILOGUE_USES): Provide default.
	(mark_regs_live_at_end): Don't mark LOCAL_REGNO registers.
	* reload1.c (reload): Likewise when considering nonlocal labels.

	* config/ia64/ia64.h (LOCAL_REGNO): New.
	* config/sparc/sparc.h (LOCAL_REGNO): New.

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

	* c-lex.c (yylex): Don't allow integer suffixes 'LUL', 'Ll', 'lL'.

2000-08-07  Nick Clifton  <nickc@redhat.com>

	* config/mips/mips.c: Fix compile time warning messages.
	* config/mips/mips-protos.h: Add prototype for equality_op.

	* mn10300.h (TARGET_SWITCHES): Document `-mam33'.

2000-08-07  Graham Stott  <grahams@cygnus.co.uk>

	* mn10300.md: Use nonimmediate_operand instead of general_operand
	on output operands.

	* mn10300.h (PREFERRED_RELOAD_CLASS): Limit memory reloads.

2000-08-07  Alexandre Oliva  <aoliva@redhat.com>

	* sh.h (EXTRA_CONSTRAINT_Q): Adjust to GNU Coding Standards.
	* sh.c (expand_block_move): Break long lines.
	(expand_ashiftrt, fpscr_set_from_mem): Likewise.
	* sh.md (mulsi3): Likewise.
	(movdi): Adjust spacing.

2000-08-07  Richard Henderson  <rth@cygnus.com>

	* expmed.c (store_bit_field): Don't require MEM_IN_STRUCT_P.
	* expr.c (emit_group_store): Don't set it.

2000-08-07  Kazu Hirata  <kazu@hxi.com>

	* invoke.texi (Options for Debugging Your Program or GCC): Remove
	duplicate entries for 'w' and 'z'.

	* flow.c: Fix a comment typo.

Sun Aug  6 23:47:35 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

	* c-parse.in: Changed the language string for Objective-C to "GNU
	Objective-C".

Sun Aug  6 11:54:03 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

	* gthr-posix.h: Integrated Chris Ball's <cball@fmco.com> changes
	to improve the Posix thread support for Objective-C.

2000-08-06  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.h (enum c_tree_index): Add CTI_SIGNED_SIZE_TYPE and
	CTI_UNSIGNED_PTRDIFF_TYPE.
	(signed_size_type_node): Define.
	(unsigned_ptrdiff_type_node): Define.
	* c-decl.c (init_decl_processing): Create the
	signed_size_type_node and unsigned_ptrdiff_type_node types.
	* c-common.c (T_SC): Define.
	(T_SST): Define.
	(T_UPD): Define.
	(print_char_table): Use T_SST for %zd, %zi, %zn.  Use T_UPD for
	%to, %tu, %tx, %tX.  Allow %hhn (T_SC).  Add "c" to the flags for
	%s and %p.
	(scan_char_table): Use T_SC for %hhd, %hhi, %hhn.  Use T_SST for
	%zd, %zi, %zn.  Use T_UPD for %to, %tu, %tx, %tX.  Add "c" to the
	flags for %c, %s and %[.
	(check_format_info): Only allow leniency for signedness of targets
	of character pointers (when pedantic) for formats flagged with
	"c", so for strings but not for %hh formats.  When pedantic, don't
	allow character pointers to substitute for void pointers if a
	second level of indirection is present.

2000-08-06  Kazu Hirata  <kazu@hxi.com>

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

	* h8300.c (dosize): Rearrange code for conciseness.
	(split_adds_subs): Likewise.

	* loop.c: Fix formatting.

	* dwarf2out.c: Fix formatting.

	* tm.texi (FUNCTION_ARG_PARTIAL_NREGS): Fix a typo.

	* expr.c: Fix formatting.

2000-08-06  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* rs6000.c (rs6000_maybe_dead): Prototype.

2000-08-06  Richard Henderson  <rth@cygnus.com>

	* stmt.c (expand_goto): Do virtual_stack_vars_rtx replacement for
	HAVE_nonlocal_goto as well.
	* config/i960/i960.md (nonlocal_goto): Don't do it here.
	* config/pj/pj.md (nonlocal_goto): Likewise.

2000-08-07  Michael Hayes  <mhayes@cygnus.com>

	* loop.c (try_swap_copy_prop): New function.
	(load_mems): Rename copies to load_copies and add new regset
	store_copies.  Check for sets of shadow registers and mark
	in store_copies.   Call try_swap_copy_prop for registers
	marked in store_copies.

Sun Aug  6 00:54:42 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

	* objc/objc-act.c: New command line option -fconstant-string-class
	to allow specifying a user defined constant string class,
	different from NXConstantString.

	* toplev.c: Moved the Objective-C specific options to
	objc/lang-options.h.

	* objc/lang-options.h: Moved the Objective-C specific options from
	toplev.c. Added -fconstant-string-class.

2000-08-05  Chris Demetriou  <cgd@sibyte.com>

	* mips/elf.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
	DTOR_LIST_BEGIN, DTOR_LIST_END): change type of
	__CTOR_LIST__ from func_ptr array to just func_ptr, to
	avoid extra alignment imposed on arrays.
	* mips/elf64.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
	DTOR_LIST_BEGIN, DTOR_LIST_END): Likewise.

	* mips.h: Clean up comments and spacing near MASKs.
	(TARGET_UNIX_ASM): Delete.
	(MASK_MIPS16, MASK_NO_CHECK_ZERO_DIV, MASK_CHECK_RANGE_DIV,
	MASK_UNINIT_CONST_IN_RODATA): Change values to make mask
	values contiguous.

2000-08-05  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (print_char_table): Add entries for the X/Open '
	format flag (print decimals with locale's thousands grouping
	character).  Make %C expect wint_t.
	(check_format_info): If pedantic, warn when the %n$ operand
	number form is used.  Allow for the ' flag; warn about it if
	pedantic.

2000-08-05  Zack Weinberg  <zack@wolery.cumb.org>

	* i386.h (FUNCTION_OK_FOR_SIBCALL):  Not OK if DECL's return
	type is a float mode, cfun->decl's return type is not, and
	TARGET_FLOAT_RETURNS_IN_80387.

2000-08-04  Andreas Schwab  <schwab@suse.de>

	* cppmain.c (cb_def_pragma): Skip the first two tokens from the
	token list, which are always `#' and `pragma'.

2000-08-04  Zack Weinberg  <zack@wolery.cumb.org>

	* tree.c (tree_expr_nonnegative_p): Move to...
	* fold-const.c: ... here.  Also handle BIND_EXPR and RTL_EXPR.
	(rtl_expr_nonnegative_p): New.
	* tree.h: Add prototype for rtl_expr_nonnegative_p.

	* real.h (CONST_DOUBLE_LOW, CONST_DOUBLE_HIGH, CONST_DOUBLE_MEM,
	CONST_DOUBLE_CHAIN: Move to...
	* rtl.h: ...here.  Use XCINT/XCEXP.

	* Makefile.in: Remove toplev.o from OBJS.  Add rule to make
	libbackend.a; add libbackend.a to STAGESTUFF.  Add BACKEND
	variable.  Use BACKEND when linking cc1, not OBJS.  Add BACKEND
	to VOL_FILES.

	* objc/Make-lang.in (cc1obj): Link with $(BACKEND).

2000-08-05  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* config/c4x/c4x.md (return_indirect_internal): New.
	* config/c4x/c4x.c (c4x_expand_epilogue): Use it.

2000-08-04  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (time_char_table): Mark up formats added in C99 and
	make other corrections.  %D and %g were added in C99.  %Og is an
	extension.  %EX is permitted.  %R, %T, %n, %r, %t were added in
	C99.  %e was added in C99.  %Oj is an extension.  %G and %z are in
	C99 rather than GNU extensions, but %OG and %Oz are extensions.
	%h was added in C99.  %C was added in C99.  %OY and %OC are
	extensions.  Add the C99 format %F.
	(check_format_info): If pedantic and not in C99 mode, warn for C99
	formats, %E and %O.

Fri Aug  4 23:01:58 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* function.c (schedule_fixup_var_refs): New function, broken out
	of put_reg_into_stack.
	(put_reg_into_stack): Use it.
	(put_var_into_stack): In CONCAT case, fixup up references for
	components only after fixing up references to the whole concat.

2000-08-04  Rodney Brown  <RodneyBrown@pmsc.com>

	* alias.c (mark_constant_function): Use INSN_P.
	(init_alias_analysis): Likewise.
	* combine.c (combine_instructions): Use INSN_P.
	(can_combine_p): Likewise.
	(try_combine): Likewise.
	(distribute_notes): Likewise.
	(distribute_links): Likewise.
	* cse.c (cse_around_loop): Use INSN_P.
	(invalidate_skipped_block): Likewise.
	(cse_set_around_loop): Likewise.
	(cse_end_of_basic_block): Likewise.
	(delete_trivially_dead_insns): Likewise.
	* emit-rtl.c (unshare_all_rtl_again): Use INSN_P.
	(unshare_all_rtl_1): Likewise.
	(next_cc0_user): Likewise.
	(try_split make_insn_raw): Likewise.
	(remove_unnecessary_notes): Likewise.
	* final.c (shorten_branches): Use INSN_P.
	(leaf_renumber_regs): Likewise.
	(leaf_renumber_regs_insn): Likewise.
	* flow.c (find_label_refs): Use INSN_P.
	(verify_wide_reg): Likewise.
	(notice_stack_pointer_modification): Likewise.
	(count_or_remove_death_notes): Likewise.
	(verify_flow_info): Likewise.
	(clear_log_links): Likewise.
	* function.c (fixup_var_refs_insns): Use INSN_P.
	(compute_insns_for_mem): Likewise.
	* gcse.c (alloc_gcse_mem): Use INSN_P.
	(compute_sets): Likewise.
	(compute_hash_table): Likewise.
	(classic_gcse): Likewise.
	(cprop): Likewise.
	(insert_insn_end_bb): Likewise.
	(delete_null_pointer_checks_1): Likewise.
	* global.c (expand_preferences): Use INSN_P.
	(build_insn_chain): Likewise.
	* graph.c (node_data): Use INSN_P.
	* haifa-sched.c (priority): Use INSN_P.
	(rm_line_notes): Likewise.
	(rm_other_notes): Likewise.
	(find_insn_reg_weight): Likewise.
	(init_target_units): Likewise.
	(schedule_block): Likewise.
	(compute_block_forward_dependences): Likewise.
	(debug_dependencies): Likewise.
	(set_priorities): Likewise.
	* integrate.c (function_cannot_inline_p): Use INSN_P.
	(save_parm_insns): Likewise.
	(copy_insn_list): Likewise.
	* jump.c (mark_all_labels): Use INSN_P.
	(never_reached_warning): Likewise.
	* lcm.c (optimize_mode_switching): Use INSN_P.
	* local-alloc.c (validate_equiv_mem): Use INSN_P.
	(memref_used_between_p): Likewise.
	(update_equiv_regs): Likewise.
	(block_alloc): Likewise.
	(no_conflict_p): Likewise.
	* loop.c (scan_loop): Use INSN_P.
	(find_and_verify_loops): Likewise.
	(count_loop_regs_set): Likewise.
	(loop_reg_used_before_p): Likewise.
	(strength_reduce): Likewise.
	(recombine_givs): Likewise.
	(check_dbra_loop): Likewise.
	(load_mems): Likewise.
	(try_copy_prop): Likewise.
	* print-rtl.c (print_rtx): Use INSN_P.
	* recog.c (find_single_use): Use INSN_P.
	* reg-stack.c (stack_regs_mentioned): Use INSN_P.
	(next_flags_user): Likewise.
	(swap_rtx_condition): Likewise.
	* regmove.c (mark_flags_life_zones): Use INSN_P.
	(optimize_reg_copy_1): Likewise.
	(optimize_reg_copy_2): Likewise.
	(optimize_reg_copy_3): Likewise.
	(reg_is_remote_constant_p): Likewise.
	(fixup_match_2): Likewise.
	(regmove_optimize): Likewise.
	(fixup_match_1): Likewise.
	* regrename.c (build_def_use): Use INSN_P.
	(replace_reg_in_block): Likewise.
	(consider_use): Likewise.
	* reload.c (find_equiv_reg): Use INSN_P.
	* reload1.c (reload): Use INSN_P.
	(maybe_fix_stack_asms): Likewise.
	(calculate_needs_all_insns): Likewise.
	(reload_as_needed): Likewise.
	(emit_output_reload_insns): Likewise.
	(delete_address_reloads_1): Likewise.
	(reload_cse_regs_1): Likewise.
	(reload_combine): Likewise.
	(reload_cse_move2add): Likewise.
	* reorg.c (redundant_insn): Use INSN_P.
	(dbr_schedule): Likewise.
	* resource.c (find_dead_or_set_registers): Use INSN_P.
	(mark_target_live_regs): Likewise.
	* rtlanal.c (reg_used_between_p): Use INSN_P.
	(reg_referenced_between_p): Likewise.
	(reg_set_between_p): Likewise.
	(reg_set_p): Likewise.
	(single_set): Likewise.
	(multiple_sets): Likewise.
	(find_last_value): Likewise.
	(reg_set_last): Likewise.
	(find_reg_note): Likewise.
	(find_regno_note): Likewise.
	* sibcall.c (sequence_uses_addressof): Use INSN_P.
	* simplify-rtx.c (cselib_process_insn): Use INSN_P.
	* ssa.c (find_evaluations): Use INSN_P.
	(rename_block): Likewise.
	(rename_equivalent_regs): Likewise.
	* unroll.c (loop_find_equiv_value): Use INSN_P.
	(set_dominates_use): Likewise.
	* varasm.c (mark_constant_pool): Use INSN_P.
	(mark_constants): Likewise.
	* config/alpha/alpha.c (alpha_does_function_need_gp): Use INSN_P.
	(alphaev4_next_group): Likewise.
	(alphaev5_next_group): Likewise.
	* config/c4x/c4x.c (c4x_process_after_reload): Use INSN_P.
	(c4x_rptb_rpts_p): Likewise.
	* config/mips/mips.c (mips16_optimize_gp): Use INSN_P.
	* config/rs6000/rs6000.c (uses_TOC): Use INSN_P.
	(rs6000_adjust_priority): Likewise.
	* config/sh/sh.c (sh_loop_align): Use INSN_P.
	(machine_dependent_reorg): Likewise.
	(split_branches): Likewise.
	* config/tahoe/tahoe.c (tahoe_cmp_check): Use INSN_P.

Fri Aug  4 11:43:49 2000  John Wehle  (john@feith.com)

	* combine.c (recog_for_combine): Remove the old notes
	prior to attempting to recognize the new pattern.
	(distribute_notes): Ignore REG_NONNEG notes.

2000-08-04  Chandrakala Chavva  <cchavva@redhat.com>

	* varasm.c (output_constructor): Add .align 0 for packed vars.

2000-08-04  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* configure.in: Use default thread_file even when enable_threads is
	yes or dce because hpux10.20 pa port uses MULTILIB implementation.
	* configure: Rebuilt.

	* gthr-dce.h (__gthread_objc_condition_allocate): Fix typo.

2000-08-04  Donn Terry (donnte@microsoft.com)

	* prefix.c (translate_name): Don't strip trailing DIR_SEPARATOR.

2000-08-04  Mark Elbrecht  <snowball3@bigfoot.com>

	* i386/x-djgpp: Delete code that conditionally modifies target_alias.
	Delete code that conditionally modifies 'version'.
	Delete X_CPPFLAGS. Add comment for SYSTEM_HEADER_DIR.
	* i386/xm-djgpp.h (GCC_DRIVER_HOST_INITIALIZATION): New macro.
	* gcc.c (main): Use it.
	* config/i386/xm-djgpp.h (UPDATE_PATH_HOST_CANONICALIZE): New macro.
	* prefix.c (update_path): Use it.
	* i386/djgpp.h (STANDARD_INCLUDE_DIR): Define.
	(MD_EXEC_PREFIX): Set to '/dev/env/DJDIR/bin/'.
	(ASM_OUTPUT_SECTION_NAME): Add code attribute to sections containing
	code.
	(SUPPORTS_WEAK, SUPPORTS_ONE_ONLY): Default to true.
	(SUBTARGET_SWITCHES): Adjust.
	(WCHAR_UNSIGNED, WCHAR_TYPE_SIZE, WCHAR_TYPE): Undefine before
	defining.
	(WINT_TYPE, SIZE_TYPE, PTRDIFF_TYPE): Define.

2000-08-04  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.h (flag_isoc94): Declare.
	* c-decl.c (flag_isoc94): Define.
	(c_decode_option): Set flag_isoc94 as appropriate.
	* c-common.c (T_PD, T_IM, T_UIM): Define.
	(format_char_info): Add tlen and jlen.
	(print_char_table): Add entries for %t and %j.  Allow %zn.  Allow
	%F.  Allow %lf.
	(scan_char_table): Add entries for %t and %j.  Allow %F.  Allow
	%l[.
	(time_char_table): Add NULL entries for %t and %j.
	(check_format_info): Allow for %t and %j.  Warn for %F if pedantic
	and not C99.  Warn for %lc, %ls and %l[ if pedantic and not C94.
	Warn for printf %lf if pedantic and not C99.  Don't warn for empty
	precision.  Allow precision argument to be unsigned int.  If
	pedantic, warn for %p passed an argument not a pointer to possibly
	qualified void or a possibly qualified character type, and for
	pointer targets of the wrong sign, except for character pointers.

2000-08-04  Joseph S. Myers  <jsm28@cam.ac.uk>

	* ginclude/stddef.h: Don't declare wint_t unless __need_wint_t.
	* c-common.h (enum c_tree_index): Add CTI_WINT_TYPE.
	(wint_type_node): Define.
	* c-decl.c (WINT_TYPE): Define.
	(init_decl_processing): Create the wint_type_node type.
	* c-common.c (T_WI): Define.
	(print_char_table): Use T_WI for %lc format.

2000-08-04  Bruce Korb  <bkorb@gnu.org>

	* fixinc/:  Verified that the MSDOS patch does not break
	the UNIX functionality and applied the next three patches
	from July:

2000-07-28  Eli Zaretskii  <eliz@is.elta.co.il>

	* fixinc/fixfixes.c (main) [__MSDOS__]: Avoid overwriting the
	output file with the temporary one by appending ".X" to generate
	the temporary fuile's name.  If the output file already has an
	extension, replace it with ".X".

	* fixinc/fixincl.c (fix_with_system) [__MSDOS__]: Use $ORIGDIR,
	not $DESTDIR, to find applyfix.  Use sprintf instead of snprintf;
	reallocate the command buffer while copying the command-line
	argument.  Redirect the output directly to the temporary file,
	instead of going through another temporary file.
	(process): Close the temporary file before unlinking it.
	(machine_matches) [__MSDOS__]: If the machine doesn't match, set
	the FD_SKIP_TEST flag.  Pay attention to the FD_MACH_IFNOT flag.
	(run_compiles): Pass p_fixd argument to machine_matches, as it
	expects.

	* fixinc/fixincl.sh: Export ORIGDIR.  If $DJDIR is set in the
	environment, assume there are no symlinks in the include
	directory.  When cleaning up the DONE files, look for them
	case-insensitively.  Don't try to remove symlinks if they aren't
	there.

	* fixinc/fixlib.c (make_raw_shell_str): Accept new argument smax;
	all callers changed.  Declare pz "const char *", to avoid compiler
	warnings.

	* fixinc/fixlib.h (ENV_TABLE): Get ORIGDIR from the environment.
	Change prototype of make_raw_shell_str.

2000-07-27  Eli Zaretskii  <eliz@is.elta.co.il>

	* fixinc/fixincl.c [__MSDOS__]: Don't include "server.h".
	(initialize) [__MSDOS__]: Use tempnam.
	(initialize): Don't use SIGPIPE if it is not defined.

	* fixinc/fixfixes.c (main) [__MSDOS__]: freopen for stdout should
	return stdout.

2000-07-25  Bruce Korb  <bkorb@gnu.org>

	* fixinc/fix*.[ch]: substantially reworked to make it possible
	to run this program without using fork(2) or pipe(2) (i.e. in
	a DOS environment).

2000-08-04  Joseph S. Myers  <jsm28@cam.ac.uk>

	* cppdefault.h (WINT_TYPE): Define.
	* cppinit.c (builtin_array): Define __WINT_TYPE__.
	* tradcpp.c (initialize_builtins): Define __WINT_TYPE__.
	* tm.texi (NO_BUILTIN_WINT_TYPE, WINT_TYPE): Document.

Fri Aug  4 06:53:46 2000  Clinton Popetz  <cpopetz@cygnus.com>

	* (mips_legitimate_address_p): Don't allow register+offset
	if the offset is large and negative, and we are compiling
	for 64 bit registers.

2000-08-04 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* gencodes.c (main): Define CODE_FOR_nothing as the last possible
	insn_code_number + 1.

2000-08-04  Kazu Hirata  <kazu@hxi.com>

	* h8300.c (function_prologue): Rearrange code for conciseness.
	(function_epilogue): Likewise.
	* h8300.h (OK_FOR_U): Fix formatting.

	* cse.c: Fix a comment typo. Fix formatting.

2000-08-03  Richard Henderson  <rth@cygnus.com>

	* config/i386/i386.md (return_indirect_internal): New.
	* config/i386/i386.c (ix86_expand_epilogue): Use it.

2000-08-03  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplex.c (parse_name): Might have to glue a CPP_OTHER token
	before the name.
	(lex_line): Glue @ onto the beginning of identifiers and
	string constants, in Objective-C mode.
	(output_token, spell_token): Handle CPP_OSTRING.
	(can_paste, maybe_paste_with_next): Handle pasting @ onto the
	beginning of a NAME or a STRING, in objc mode.

	* cpplib.c (get_define_node): Do not permit identifiers that
	begin with @ to be #defined.
	* cppmacro.c (CAN_PASTE_AFTER): Add CPP_OTHER.
	* cpplib.h (TTYPE_TABLE): Add CPP_OSTRING.

	* c-lang.c, objc/objc-act.c (build_objc_string): Delete.
	* c-tree.h (build_objc_string): Delete prototype.
	* objc/objc-tree.def: Delete OBJC_STRING_CST.
	* c-lex.c (yylex): Use build_string for all three kinds of strings.

	* c-parse.in, objc/objc-act.c: Update commentary.

2000-08-03  Mark Mitchell  <mark@codesourcery.com>

	* extend.texi: Fix typo in last change.

	* extend.texi: Add commentary on statement-expressions and their
	interactions with C++.

2000-08-03  Nick Clifton  <nickc@cygnus.com>

	* dwarf2.h (DW_LANG_Java): Change value to 0x000b.
	* dwarf.h (LANG_JAVA): Change value to 0x000b.

2000-08-03  Anthony Green  <green@cygnus.com>

	* dwarf2out.c (gen_compile_unit_die): Add java language support.
	(add_bound_info): Check for java language.
	(is_java): New function.
	* dwarfout.c (output_compile_unit_die): Ditto.
	* dwarf.h (dwarf_source_language): Add java source language type.
	* dwarf2.h (dwarf_source_language): Ditto.

Thu Aug  3 20:32:25 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* reg-stack.c (subst_stack_regs_pat):  Use replace_reg to swap
	operands.

	* i386.c (ix86_expand_branch): Mode of comparison in
	IF_THEN_ELSE is VOIDmode.

Thu Aug  3 10:05:53 2000  Akiko Matsushita <matusita@sra.co.jp>

	* gengenrtl.c, rtl.c: Avoid #elif.

2000-08-03  Michael Poole  <poole@troilus.org>

	* tm.texi (Register Classes): Clarify order of sub-initializers
	in REG_CLASS_CONTENTS.

Thu Aug  3 15:53:03 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	From SAITOH Masanobu:
	* sh.h (ASM_OUTPUT_REG_PUSH): Fix syntax.

2000-08-03  David Billinghurst  <David.Billinghurst@riotinto.com.au>

	* config/i386/cygwin.h: Remove -remap from CPP_SPEC since this option
	is not supported by tradcpp and isn't actually needed for cygwin.

2000-08-03  Kazu Hirata  <kazu@hxi.com>

	* h8300.c: Fix a comment typo.
	* h8300.h (OK_FOR_U): Accept a 32-bit constant address on H8/S.

	* jump.c: Fix formatting.

	* toplev.c: Fix formatting.

Thu Aug  3 01:05:32 2000  Jeffrey A Law  (law@cygnus.com)

	* flow.c (find_auto_inc): Verify that we've got a REG before
	peeking at its regno.  Fail, don't abort if we can't find
	the increment of the desired register.

	* pa.md (shadd height reduction patterns/splitters): Remove.

2000-08-02  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64-protos.h (flag_ssa): Declare.
	* config/ia64/ia64.md (movti_internal, movti_internal+1): New.

2000-08-02  Mark Mitchell  <mark@codesourcery.com>

	* dce.c: Remove all uses of assert.
	* dwarf2out.c: Likewise.
	* dwarfout.c: Likewise.
	* ssa.c: Likewise.

2000-08-02  Zack Weinberg  <zack@wolery.cumb.org>

	* gcc.h (lang_specific_driver): Constify second argument.
	* gcc.c (translate_options, process_command, main): Likewise.
	Constify variables to match.  Cast second argument to
	pexecute.

	* cppspec.c, gccspec.c: Adjust type of second argument to
	lang_specific_driver, and update code as necessary.

2000-08-02  Jakub Jelinek  <jakub@redhat.com>

	* loop.c (scan_loop): Ensure update_end label does not
	go away until reg_scan_update is run.

2000-08-02  Zack Weinberg  <zack@wolery.cumb.org>

	* c-common.h: Prototype min_precision and c_build_qualified_type here...
	* c-tree.h: ... not here.
	* errors.h: Prototype fancy_abort.

	* emit-rtl.c (gen_lowpart_common): Move variable 'c' into
	HOST_BITS_PER_WIDE_INT == 64 ifdef block.
	* regrename.c (regrename_optimize): Make control flow explicit.
	(replace_reg_in_block): Initialize reg_use to 0.

	* i386.c (legitimate_address_p): Rename error label to
	report_error to avoid namespace clash.

2000-08-02  Kazu Hirata  <kazu@hxi.com>

	* fold-const.c: Fix formatting.

Wed Aug  2 16:26:15 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* i386.c (legitimate_address_p): Accept other bases than
	pic_offset_table_rtx for GOTOFF constructs.

Wed Aug  2 15:59:34 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* i386.md (shift to lea splitter): Use const_int_operand.

2000-08-02  Zack Weinberg  <zack@wolery.cumb.org>

	* cppexp.c, cppinit.c, cpplex.c, cpplib.c, cppmacro.c,
	cppspec.c: Do not use 'legal' or 'illegal' in error messages
	and comments.

	* cppmain.c (cb_define, cb_undef): Don't generate any output
	if not done_initializing.
	* cpplex.c (maybe_paste_with_next): When the token after a ##
	is an omitted rest argument, only delete the token before it
	if that token is a comma.  Do not warn about bogus token
	pastes for , ## rest_arg.

	* cpp.texi: Update.
	* cpp.1: Regenerate.

2000-08-02  Fred Fish  <fnf@be.com>

	* config/i386/beos-elf.h (STARTFILE_SPEC): Add i386-mcount.o
	when user gives -p option.  Add init_term_dyn.o for BeOS 5.0
	and later.

	* config/i386/beos-elf.h (INCLUDE_DEFAULTS): Add additional
	Be directories to search path.

	Remove support for __declspec(dllimport) and __declspec(dllexport).
	This is leftover cruft from the earlier BeOS gcc port when BeOS
	used Microsoft's PE object file format.
	* configure.in (i*86-*-beoself): Remove extra_objs=winnt.o.
	* config/i386/t-beos (winnt.o): Remove Makefile frag.
	* config/i386/beos-elf.h (TARGET_NOP_FUN_DLLIMPORT): Remove.
	(VALID_MACHINE_DECL_ATTRIBUTE): Remove.
	(VALID_MACHINE_TYPE_ATTRIBUTE): Remove.
	(MERGE_MACHINE_DECL_ATTRIBUTES): Remove.
	(REDO_SECTION_INFO_P): Remove.
	(ASM_EXPORT_DECL): Remove.
	(ASM_DECLARE_FUNCTION_NAME): Remove.
	(ASM_DECLARE_OBJECT_NAME): Remove.
	(ASM_OUTPUT_ALIGNED_COMMON): Remove.
	(ASM_OUTPUT_ALIGNED_DECL_COMMON): Remove.
	(ASM_OUTPUT_ALIGNED_LOCAL): Remove.
	(STRIP_NAME_ENCODING): Remove.

	Remove support for obsolete version of BeOS that is no longer
	supported by Be.
	* configure.in (i*86-*-beospe*): Remove.
	* config/i386/beos-pe.h: Remove.

2000-08-01  Jeffrey Oldham  <oldham@codesourcery.com>
	    Mark Mitchell <mark@codesourcery.com>

	* Makefile.in (OBJS): Added dce.o.
	(ssa.o): Updated target to include ssa.h.
	(flow.o): Likewise.
	(toplev.o): Likewise.
	(dce.o): Created target.
	* basic-block.h: Added comments.
	(INVALID_BLOCK): Added definition.
	(connect_infinite_loops_to_exit): Added declaration.
	Moved SSA declarations to ssa.h.
	* flow.c: Added inclusion of ssa.h.
	(struct depth_first_search_dsS, depth_first_search_ds):
	Added definitions.
	(compute_immediate_postdominators): Added definition.
	(connect_infinite_loops_to_exit): Likewise.
	(flow_dfs_compute_reverse_init): Likewise.
	(flow_dfs_compute_reverse_add_bb): Likewise.
	(flow_dfs_compute_reverse_execute): Likewise.
	(flow_dfs_compute_reverse_finish): Likewise.
	* rtl.h (rtx/in_struct): Added use to determine insn necessity.
	(LABEL_P): Added definition.
	(JUMP_P): Likewise.
	(NOTE_P): Likewise.
	(BARRIER_P): Likewise.
	(JUMP_TABLE_DATA_P): Likewise.
	(INSN_DEAD_CODE_P): Likewise.
	* ssa.c: Replaced inclusions with ssa.h inclusion.
	(CONVERT_HARD_REGISTER_TO_SSA_P): Moved to ssa.h.
	(rename_registers): Removed unnecessary variables.
	* ssa.h: Created by moving declarations from ssa.c and
	basic-block.h.
	* timevar.def: Defined TV_DEAD_CODE_ELIM.
	* toplev.c: Added ssa.h inclusion.
	(dump_file_index): Added DFI_dce.
	(dump_file): Added "dce" entry.
	Defined flag_ssa.
	(f_options): Added dce entry.
	* invoke.texi: Document -fdce.  Emphasize experimental status of
	-fssa.
	* dce.c: New file.

2000-08-01  Zack Weinberg  <zack@wolery.cumb.org>

	* cpperror.c (v_message): Split into _cpp_begin_message and
	v_message macro.  All callers updated.
	(_cpp_begin_message): Do inhibit_errors/inhibit_warnings
	checks here.

	* cppfiles.c (cpp_syshdr_flags): New function.
	(read_include_file): Don't call cpp_output_tokens.  Call
	enter_file hook.
	* cppinit.c (dump_macros_helper): Moved to cppmain.c.
	(cpp_reader_init): Don't initialize token_buffer.  Call
	_cpp_init_internal_pragmas.
	(cpp_cleanup): Don't clear token_buffer.
	(cpp_start_read): Don't worry about output from -D processing.
	Don't call cpp_output_tokens.
	(cpp_finish): Don't dump macros here.  Don't call
	cpp_output_tokens.
	* cppmacro.c (_cpp_dump_definition): Rename
	cpp_dump_definition.  Write directly to a FILE *.
	(dump_funlike_macro): Delete.
	(dump_macro_args): New.

	* cpplex.c (TOKEN_LEN): Convert to inline function.
	(_cpp_grow_token_buffer, safe_fwrite, cpp_output_tokens,
	cpp_scan_line, _cpp_dump_list): Delete.
	(cpp_printf, cpp_output_list): New.
	(output_line_command): Don't worry about entering or leaving files.
	(cpp_scan_buffer): Just output each token as we hit it.
	(process_directive): Don't call cpp_output_tokens.
	(_cpp_glue_header_name): Don't use token_buffer.
	(output_token, dump_param_spelling): Write directly to a FILE *.

	* cpplib.c (pass_thru_directive, dump_macro_name,
	pragma_dispatch, do_pragma_gcc): Delete.
	(do_define, do_undef, parse_include, do_line, do_ident, do_pragma,
	do_pragma_poison, cpp_pop_buffer): Call the appropriate hook
	functions.
	(do_error, do_warning, pragma_dependency): Call
	_cpp_begin_message, then cpp_output_list.
	(cpp_register_pragma, cpp_register_pragma_space,
	_cpp_init_internal_pragmas): New.
	(do_pragma): Walk the pragmas table here.
	(do_pragma_once, do_pragma_poison, do_pragma_system_header,
	do_pragma_dependency): Return void.
	(do_pragma_implementation): Moved to cppmain.c.

	* cpplib.h: Update prototypes.
	 (struct cpp_reader): Remove printer, token_buffer,
	token_buffer_size, and limit.  Add struct cb, and pragmas.
	(struct cpp_printer): Remove last_id and written.
	(CPP_WRITTEN, CPP_PWRITTEN, CPP_SET_WRITTEN,
	CPP_ADJUST_WRITTEN): Delete.
	* cpphash.h: Update prototypes.
	(ufputs): New wrapper.

	* cppmain.c (cb_define, cb_undef, cb_include, cb_ident,
	cb_enter_file, cb_leave_file, cb_def_pragma): New functions.
	(main): Set up callbacks.  Register #pragma implementation.
	Dump macros from here.

2000-08-01  Geoff Keating  <geoffk@cygnus.com>

	* rtl.h (enum reg_note): Add REG_MAYBE_DEAD.
	* rtl.c (reg_note_name): Add REG_MAYBE_DEAD.
	* flow.c (propagate_one_insn): Allow deletion of prologue/epilogue
	insns if they have a REG_MAYBE_DEAD note attached.
	* config/rs6000/rs6000.c (rs6000_maybe_dead): New function.
	(rs6000_emit_load_toc_table): TOC loads may go dead.

2000-08-01  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64.c (ia64_function_arg): Fix last change.  Verify
	type exists before using it.  Use number of words as alignment
	otherwise.
	(ia64_function_arg_partial_nregs, ia64_function_arg_advance,
	ia64_va_arg): Propagate ia64_function_args changes here.

2000-08-01  Richard Henderson  <rth@cygnus.com>

	* config/elfos.h (ASM_DECLARE_OBJECT_NAME): Care for null DECL.
	* config/ia64/sysv4.h (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Likewise.

2000-08-01  Bernd Schmidt  <bernds@cygnus.co.uk>

	From Joern Rennecke:
	* sh.h (CPP_SPEC, TARGET_SWITCHES): Add m4-nofpu.
	* sh.md (udivsi3, divsi3): Don't use libcalls that use the FPU
	unless TARGET_SH3E is set.
	* t-sh (MULTILIB_MATCHES): Add m2=m4-nofpu.

	* sh.md (ashlsi3_d, ashlsi3_k): Remove, replace with
	(ashlsi3_std): New pattern.
	(ashlsi3 expander): Use it for TARGET_SH3.
	* sh.c (gen_ashift): Use it instead of ashlsi3_k.

Tue Aug  1 12:34:21 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* loop.c (canonicalize_condition):  Use destination, not source to
	determine SET's mode.

2000-07-31  Mark Mitchell  <mark@codesourcery.com>

	* flow.c (clear_log_links): Fix typo.

Mon Jul 31 22:19:24 2000  Jeffrey A Law  (law@cygnus.com)

	* loop.c (check_dbra_loop): Make change from July 17, 2000 work
	on targets which need more than one insn for a compare/cbranch
	operation.

2000-07-31  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64.c (ia64_function_arg): Use alignment not size
	when computing offset.

Mon Jul 31 20:35:50 2000  Denis Chertykov  <denisc@overta.ru>

	* genpeep.c (main): Handle DEFINE_PEEPHOLE2.

2000-07-31  Geoff Keating  <geoffk@cygnus.com>

	* flow.c (clear_log_links): Nuke global_live_at_start and
	global_live_at_end data, since if the log_links stuff is invalid
	so is global_live_at_*.

2000-07-31  Richard Henderson  <rth@cygnus.com>

	* tm.texi (Addressing Modes): Clarify PRE/POST_MODIFY descriptions.

2000-07-31  Jakub Jelinek  <jakub@redhat.com>

	* cpplex.c (_cpp_get_line): If index is 0, return line 0 col 0.
	(_cpp_get_token): Don't macro expand a just pasted token if it
	was pasted at no_expand_level.

2000-07-31  Zack Weinberg  <zack@wolery.cumb.org>

	* cppmacro.c (find_param, count_params, save_expansion):
	Permit 'defined' as a macro parameter name.

2000-07-31  Zack Weinberg  <zack@wolery.cumb.org>

	* Makefile.in: Rename cpp to cpp0, tradcpp to tradcpp0, and
	xcpp to cpp throughout.
	(native): Remove unnecessary dependency on cpp.

	* gcc.c (trad_capable_cpp, C specs): Rename cpp to cpp,
	tradcpp to tradcpp0.
	(.i spec): Add missing output-file spec to cc1 command line.
	* objc/lang-specs.h: Rename cpp to cpp0 and/or tradcpp to tradcpp0.

2000-07-31  Zack Weinberg  <zack@wolery.cumb.org>

	* c-decl.c (mesg_implicit_function_declaration): Init to -1.
	(implicit_decl_warning): New function.
	(implicitly_declare): Use it.
	* c-typeck.c (build_external_ref): Use implicit_decl_warning
	to complain about implicit decls of builtins.

	* c-lang.c (lang_init): Set mesg_implicit_function_declaration
	based on pedantic && flag_isoc99, if not already set.
	* c-tree.h: Declare mesg_implicit_function_declaration.
	Prototype implicit_decl_warning.

2000-07-30  Jeffrey D. Oldham  <oldham@codesourcery.com>

	* Makefile.in (ssa.o): Updated header files in dependences.
	* basic-block.h: Added compute_immediate_postdominators declaration.
	* config/i386/i386.h (CONVERT_HARD_REGISTER_TO_SSA_P): Added
	definition.
	* flow.c (compute_immediate_dominators): Updated comment.
	(compute_immediate_postdominators): Added definition.
	* rtl.h (HARD_REGISTER_P): Added definition.
	* ssa.c: Include additional header files.
	(assert): Added definition.
	(ssa_rename_to_lookup): Added to reimplement ssa_rename_to to
	include select hard registers.
	(ssa_rename_to_insert): Likewise.
	(ssa_rename_from_initialize): Likewise.
	(ssa_rename_from_lookup): Likewise.
	(original_register): Likewise.
	(ssa_rename_from_insert): Added to reimplement ssa_rename_from to
	include select hard reigsters.
	(ssa_rename_from_traverse): Likewise.
	(ssa_rename_from_free): Likewise.
	(ssa_rename_from_print): Likewise.
	(ssa_rename_from_print_1): Likewise.
	(ssa_rename_from_hash_function): Likewise.
	(ssa_rename_from_equal): Likewise.
	(ssa_rename_from_delete): Likewise.
	(simplify_to_immediate_dominators): Removed in favor of
	flow.c:compute_immediate_dominators.
	(find_evaluations_1): Modified to work with hard registers.
	(insert_phi_node): Likewise.
	(insert_phi_nodes): Likewise.
	(struct rename_set_data): Updated prev_reg comment.
	(create_delayed_rename): Modified to work with hard registers.
	(RENAME_NO_RTX): Updated comment.
	(apply_delayed_renames): Modified to work with hard registers.
	(rename_insn_1): Likewise and added handling of CLOBBER rtls.
	(rename_block): Updated to use revised ssa_rename_to interface.
	(rename_registers): Updated to use revised ssa_rename_to and
	ssa_rename_from interface.
	(convert_to_ssa): Revised to use compute_immediate_dominators and
	deal with hard registers.
	(make_regs_equivalent_over_bad_edges): Modified to work with hard
	registers.  Added check for illegal unification of hard register.
	(make_equivalent_phi_alternatives_equivalent): Modified to work
	with hard registers.
	(compute_conservative_reg_partition): Likewise.
	(coalesce_if_unconflicting): Modified to work with hard registers
	and check for conflicting hard registers.
	(mark_phi_and_copy_regs): Revised loop to work only on pseudo
	registers.
	(rename_equivalent_regs_in_insn): Modified to work with hard
	registers.
	(record_canonical_element_1): Added definition.
	(check_hard_regs_in_partition): Added definition.
	(convert_from_ssa): Added data structure deallocation and check
	for illegal hard register unification.
	(conflict_hard_regs_p): Added definition.
	* toplev.c (rest_of_compilation): Added comment.

2000-07-31  Anthony Green  <green@redhat.com>

	* config/ia64/crtbegin.asm (__EH_FRAME_BEGIN__): Align correctly.

2000-07-31  Jason McMullan  <jmcmullan@linuxcare.com>

	* builtins.c (expand_builtin_apply): Don't defer pop during
	argument setup.

2000-07-31 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* calls.c (combine_pending_stack_adjustment_and_call): Only use
	preferred_unit_stack_boundary when it is > 1.

2000-07-31  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (init_function_format_info): Add C99 format functions
	in C99 mode.

	* c-decl.c (get_parm_info): Don't treat 'const void', 'volatile
	void' or 'register void' as being the special case of 'void' alone
	in a parameter list.

	* c-typeck.c (build_c_cast): Change -Wcast-qual pedwarn for
	discarding qualifiers into a plain warning.

2000-07-31  Kazu Hirata  <kazu@hxi.com>

	* combine.c: Fix formatting.

	* h8300.md: Fix formatting.

	* local-alloc.c: Fix formatting.

	* h8300.c (get_shift_alg): Remove the variable alg.
	(emit_a_shift): Rearrange code to improve readability.

	* h8300.md (movsi_h8300hs): Rearrange code to improve readability.

	* h8300.h (MODES_TIEABLE_P): Accept a combination of QImode and
	HImode on all architectures and a combination of HImode and SImode
	on H8/300H and H8/S.

	* h8300.c (split_adds_subs): Rearrange code for conciseness.

Mon Jul 31 12:27:55 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* i386.md (addsi to lea splitter, ashlqi3_1_lea): Fix bugs
	in my last checkin.

Mon Jul 31 10:41:01 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* recog.c (extract_insn): Set operand_mode according to
	operand if match_operand is VOIDmode.

Mon Jul 31 10:36:38 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* recog.c (validate_replace_rtx_1): Do not abort for (nil) expression.

2000-07-31  Geoff Keating  <geoffk@cygnus.com>

	* c-parse.in (extdefs): Call ggc_collect between external
	definitions.

2000-07-30  Michael Hayes  <mhayes@cygnus.com>
	    Richard Henderson  <rth@cygnus.com>

	* Makefile.in (OBJS): Add doloop.o.
	* doloop.c: New file.

	* final.c (insn_current_reference_address): Return 0 before final.
	* flags.h (flag_branch_on_count_reg): Fix typos in commentary.
	* jump.c (any_uncondjump_p): Likewise.
	* loop.c (indirect_jump_in_function): Make static.
	(strength_reduce): Call doloop_optimize.
	(insert_bct, instrument_loop_bct): Remove.
	* loop.h (doloop_optimize): Prototype.
	* recog.c (split_all_insns): Split all INSN_P.
	* toplev.c (flag_branch_on_count_reg): Default on.

	* config/c4x/c4x.c (c4x_optimization_options): Don't set
	flag_branch_on_count_reg.
	* config/i386/i386.c (override_options): Likewise.
	* config/rs6000/rs6000.c (optimization_options): Likewise.

	* config/i386/i386.md (decrement_and_branch_on_count): Remove.
	(doloop_end): New.
	(dbra_ge): Remove, as well as all it's splitters.

	* config/rs6000/rs6000.md (decrement_and_branch_on_count): Remove.
	(doloop_end): New.

	* config/ia64/ia64-protos.h (ar_lc_reg_operand): Declare.
	(ia64_register_move_cost): Declare.
	* config/ia64/ia64.c (ar_lc_reg_operand): New.
	(struct ia64_frame_info): Add ar_size.
	(ia64_compute_frame_size): Set it.
	(save_restore_insns): Save and restore ar.lc.
	(ia64_register_move_cost): New, moved from header file.  Handle
	application registers.
	(REG_AR_PFS, REG_AR_EC): Remove.  Replace with AR_*_REGNUM numbers.
	(emit_insn_group_barriers): Special case doloop_end_internal.
	(ia64_epilogue_uses): Mark ar.lc live at end.
	* config/ia64/ia64.h (AR_CCV_REGNUM, AR_LC_REGNUM): New registers.
	(AR_EC_REGNUM, AR_PFS_REGNUM): New registers.
	(FIRST_PSEUDO_REGISTER): Make room.
	(AR_M_REGNO_P, AR_I_REGNO_P, AR_REGNO_P): New.
	(FIXED_REGISTERS, CALL_USED_REGISTERS): Update.
	(REG_ALLOC_ORDER): Update.
	(HARD_REGNO_MODE_OK): Update.
	(REGISTER_NAMES): Update.
	(enum reg_class): Add AR_M_REGS and AR_I_REGS.
	(REG_CLASS_NAMES, REG_CLASS_CONTENTS): Update.
	(REGNO_REG_CLASS): Update.
	(LEGITIMATE_ADDRESS_DISP): Displacement range is 9 bits, not 10.
	(REGISTER_MOVE_COST): Move out of line.
	(PREDICATE_CODES): Update.
	* config/ia64/ia64.md (movdi patterns): Handle ar register classes.
	(addsi3_plus1_alt, adddi3_plus1_alt): New.
	(shladd_elim splitter): Allow constants in the predicate.
	(doloop_end, doloop_end_internal): New.

2000-07-30  Richard Henderson  <rth@cygnus.com>

	* genattrtab.c (struct insn_def): Add lineno member.
	(struct insn_ent): Likewise.
	(struct attr_desc): Likewise.
	(struct delay_desc): Likewise.
	(struct function_unit_op): Likewise.
	(struct function_unit): Likewise.
	(check_attr_value): Use message_with_line.
	(check_defs): Likewise.
	(expand_units): Likewise.
	(check_attr_test): Take a lineno argument.
	(gen_attr): Likewise.
	(gen_insn): Likewise.
	(gen_delay): Likewise.
	(gen_unit): Likewise.
	(main): Give it to them.
	(convert_set_attr_alternative): Take an insn_def argument
	instead of num_alt and insn_index.
	(convert_set_attr): Likewise.
	(write_test_expr): Protect INSN_ADDRESSES load
	with INSN_ADDRESSES_SET_P.

2000-07-30  Richard Henderson  <rth@cygnus.com>

	* flow.c (init_propagate_block_info): Use pc_set.

Sun Jul 30 20:58:34 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* i386.md (*lea_general_[123]) New insns and splits.
	(addsi3 to lea splitter): Handle other modes too.
	(shlsi3 to lea splitter): Likewise.
	(addhi_1_lea, shlhi_1_lea): New patterns.
	(addhi_1, shlhi_1): Conditionize by PARTIAL_REG_STALL.

Sun Jul 30 20:51:25 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* recog.c (general_operand, nonimmediate_operand): Accept
	any mode for VOIDmode CONSTANT_P operands.

Sun Jul 30 20:42:21 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* gcse.c (try_replace_reg): Use validate_replace_rtx_subexp
	instead of replace_rtx.
	* recog.c (validate_replace_rtx_subexp): New function.
	* recog.h (validate_replace_rtx_subexp): Declare.

Sun Jul 30 20:38:26 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* combine.c (simplify_set, make_extraction, make_compound_operation
	make_field_assignment): Use full mask instead of GET_MODE_MASK (mode)
	as force_to_mode argument.

Sun Jul 30 20:30:41 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* combine.c (if_then_else_cond): Be sure that mode fits in
	HOST_WIDE_INT.

Sun Jul 30 20:27:36 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* combine.c (record_promoted_value):  Allow bitsize of mode
	to be equivalent to HOST_BITS_PER_WISE_INT.

Sun Jul 30 20:25:21 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* function.c (assign_stack_local_1, assign_stack_temp_for_type):
	Do not call gen_mode_alignment when mode is BLKmode.

Sun Jul 30 20:21:54 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* loop.c (express_from_1): Fix call of simplify_gen_binary.

Sun Jul 30 20:08:37 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* simplify-rtx.c (simplify_relational_operation): Verify that mode ==
	VOIDmode implies both operands to be VOIDmode.
	(simplify_ternary_operation): Compute properly the mode of comparison.
	* combine.c (combine_simplify_rtx): Likewise.

2000-07-25  Michael Hayes  <mph@paradise.net.nz>

	* basic-block.h (struct loops): New field rc_order.
	* flow.c (flow_loops_cfg_dump): Dump rc_order if computed.
	(flow_loops_free): Free rc_order.
	(flow_depth_first_order_compute): New parameter rc_order.
	(flow_loops_find): Allocate rc_order and swap usage with
	dfs_order.

2000-07-30 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
	   Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md (set_ldp_prologue): Add for RTL prologue/epilogue.
	(push_st, push_dp, pop_st, pop_dp, popqi_unspec): Likewise.
	(nodb_call, return_from_epilogue): Likewise.
	(return_from_interrupt_epilogue, prologue, epilogue): Likewise.
	* config/c4x/c4x.c (c4x_expand_prologue, c4x_expand_eplilogue): Add.
	* config/c4x/c4x-protos.h (c4x_interrupt_function_p): Add.
	(c4x_expand_prologue, c4x_expand_epilogue): Likewise.
	(c4x_valid_type_attribute_p): Likewise.
	* config/c4x/c4x.h (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE): Delete.
	(FUNCTION_BLOCK_PROFILER_EXIT): Convert to emit RTL.

2000-07-30  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (c4x_emit_move_sequence): Use loadqi_big_constant
	and loadhi_big_constant if applicable.
	* config/c4x/c4x.md (loadqi_big_constant, loadhi_big_constant): Tweak
	and add new splitter.s

2000-07-30  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (c4x_rptb_insert): Make more robust.

2000-07-30  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.h (ASM_FORMAT_PRIVATE_NAME): Output $ in label.

2000-07-30  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.h (IS_XXX_REGNO): Rewrite to avoid unsigned warnings.

2000-07-30  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/libgcc.S (divqf3): Improve accuracy.

2000-07-27  Mark Mitchell  <mark@codesourcery.com>

	Put phi nodes after NOTE_INSN_BASIC_BLOCK.
	* rtl.h (NOTE_INSN_BASIC_BLOCK_P): New macro.
	* bb-reorder.c (get_next_bb_note): Use NOTE_INSN_BASIC_BLOCK_P.
	(get_prev_bb_note): Likewise.
	(remove_scope_notes): Likewise.
	* flow.c (commit_one_edge_insertion): Likewise.
	(merge_blocks_nomove): Likewise.
	(verify_flow_info): Likewise.
	* gcse.c (insert_insn_end_bb): Likewise.
	* reg-stack.c (emit_swap_insn): Likewise.
	* ssa.c (first_insn_after_basic_block_note): New function.
	(insert_phi_node): Use it.
	(rename_block): Likewise.
	(eliminate_phi): Likewise.
	(make_regs_equivalent_over_bad_edges): Likewise.
	(make_equivalent_phi_alternatives_equivalent): Likewise.
	(for_each_successor_phi): Likewise.
	(convert_from_ssa): Modify phi-node deletion algorithm.

2000-07-29  Andreas Jaeger  <aj@suse.de>

	* configure.in (mips*-*-linux*): Use mips*el to check for little
	endian MIPS, add tmake_file.

	* config/mips/linux.h (TARGET_VERSION): Use GNU/Linux.
	(SUBTARGET_CPP_SPEC): Default MIPS_ISA is 1.
	Patches by Maciej W. Rozycki <macro@ds2.pg.gda.pl>.

2000-07-28  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.c (ia64_print_operand): Fix typos.
	Sign extend mode size before negating.

2000-07-28  Richard Henderson  <rth@cygnus.com>

	* emit-rtl.c (gen_lowpart_common): Add missing 'c' variable.

2000-07-28  Bernd Schmidt  <bernds@cygnus.co.uk>

	* cse.c (canon_hash): Handle PRE_MODIFY/POST_MODIFY.
	(cse_insn): Likewise.
	(addr_affects_sp_p): Likewise.
	* expr.c (move_by_pieces): Likewise.
	(clear_by_pieces): Likewise.
	* gcse.c (oprs_unchanged_p): Likewise.
	* haifa-sched.c (sched_analyze_2): Likewise.
	* recog.c (offsettable_address_p): Likewise.
	* regclass.c (record_address_regs): Likewise.
	* reload.c (find_reusable_reload): Likewise.
	(push_reload): Likewise.
	(operands_match_p): Likewise.
	(decompose): Likewise.
	(find_reloads_address_1): Likewise.
	(find_inc_amount): Likewise.
	* reload1.c (elimination_effects): Likewise.
	* resource.c (mark_set_resources): Likewise.
	* flow.c (attempt_auto_inc): New function; mostly broken out
	of find_auto_inc.
	(find_auto_inc): Split into two functions and enhanced to
	generate POST_MODIFY.
	* rtl.def (PRE_MODIFY, POST_MODIFY): Adjust comment.
	* rtl.h (count_all_occurrences):  Declare.
	(HAVE_{PRE,POST}_MODIFY_{DISP,REG}): Provide default of 0 if not
	defined.
	* rtlanal.c (count_all_occurrences): New function.
	* tm.texi (HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_DISP,
	HAVE_POST_MODIFY_REG, HAVE_PRE_MODIFY_REG): Document.

	* config/ia64/ia64-protos.h (destination_operand): Declare.
	* config/ia64/ia64.c (destination_operand): New function.
	(ia64_print_operand): Handle POST_MODIFY.
	(rtx_needs_barrier): Likewise.
	* config/ia64/ia64.h (HAVE_POST_MODIFY_DISP): Define to 1.
	(HAVE_POST_MODIFY_REG): Define to 1.
	(MAX_REGS_PER_ADDRESS): Change to 2.
	(GO_IF_LEGITIMATE_ADDRESS): Accept POST_MODIFY too.
	(LEGITIMATE_ADDRESS_REG): New helper macro.
	(LEGITIMATE_ADDRESS_DISP): Likewise.
	(PREDICATE_CODES): Add entry for destination_operand.
	* config/ia64/ia64.md (all mov patterns): Use destination_operand
	predicate for operand 0.

2000-07-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* dwarf2out.c: Indent #error directive.

	* gbl-ctors.h: Fix typo in comment.
	(__do_global_ctors): Prototype.

	* gcse.c (record_one_set, pre_delete): Remove unused variables.

	* rs6000.c (rs6000_maybe_dead): Delete unused prototype.
	(print_operand): Initialize variable `t'.

2000-07-27  Aldy Hernandez  <aldyh@redhat.com>

	* config/arm/arm.md ("call_value"): removed constraints.
	Constraints are ignored in expanders.
	(*call_value_reg): split =rf into various constraints.
	(*call_value_mem): same
	(*call_value_symbol): same
	(*sibcall_value_insn): same

2000-07-28  Philipp Thomas  <pthomas@suse.de>

	* install.texi (--enable-nls): Change the description of the NLS
	related configure options to match the current state.
	(--with-included-gettext): Likewise.
	(--enable-maintainer-mode): New description added.
	* extend.texi (-fstrict-prototype): Add missing '.'.

2000-07-27  Jim Wilson  <wilson@cygnus.com>

	* dwarf2out.c (gen_decl_die): Don't call gen_abstract_function if
	DECL_INITIAL (decl) == NULL_TREE.

2000-07-27  Alexandre Oliva  <aoliva@redhat.com>

	* Makefile.in (INSN_ATTR_H): New macro.  Replace all dependencies
	on insn-attr.h with it.
	* genattr.c: Generate `#include "insn-addr.h"' if HAVE_ATTR_length.
	* insn-addr.h: New header.
	(insn_addresses_): Renamed from insn_addresses.
	(INSN_ADDRESSES_DEFN, INSN_ADDRESSES, INSN_ADDRESSES_ALLOC,
	INSN_ADDRESSES_FREE, INSN_ADDRESSES_SET_P, INSN_ADDRESSES_SIZE,
	INSN_ADDRESSES_NEW): New macros.
	* genattrtab.c (write_test_expr): Use new macros.
	* final.c (insn_addresses, init_insn_lengths): Likewise.
	(align_fuzz, shorten_branches): Likewise.
	(final): Likewise.  Do not reject new insns if their addresses
	have been added to INSN_ADDRESSES.
	* config/arm/arm.c, config/avr/avr.c: Use new macros.
	* config/h8300/h8300.c, config/i370/i370.c: Likewise.
	* config/m88k/m88k.c, config/pa/pa.c, config/pa/pa.md: Likewise.
	* config/sparc/sparc.c, config/sparc/sparc.md: Likewise.
	* config/sh/sh.c: Likewise.
	(output_branchy_insn): Use INSN_ADDRESSES_NEW.

	* Makefile.in (bootstrap): Move -BstageN/ back to the beginning.

2000-07-27  Andrew Cagney  <cagney@b1.cygnus.com>

	* gcc.c (struct prefix_list): Add member priority.
	(enum path_prefix_priority): Declare.
	(add_prefix): Replace ``first'' with ``priority''.  Append new
	entry but keep list in priority order.
	(process_command): Update.  Pass PREFIX_PRIORITY_B_OPT or
	PREFIX_PRIORITY_LAST to add_prefix.
	(process_command): Move include kludge - foo/stageN - to before
	foo/include.

2000-07-27  Jason Merrill  <jason@redhat.com>

	* dwarf2out.c (gen_typedef_die): Abort if we get identical
	TREE_TYPE and DECL_ORIGINAL_TYPE on a typedef.

2000-07-27  RodneyBrown  <RodneyBrown@pmsc.com>

	* expr.h (get_alias_set, lang_get_alias_set): Delete prototypes.
	* tree.h (get_alias_set, lang_get_alias_set): Prototype.

2000-07-27  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-decl.c (finish_function): Don't treat 'main' specially unless
	flag_hosted.  In C99 mode, return 0 from 'main' unless
	DEFAULT_MAIN_RETURN is otherwise defined.

	* c-decl.c (store_parm_decls): In C99 mode, pedwarn for function
	parameters defaulting to int in an old-style function definition.

2000-07-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-parse.in (string): For -Wtraditional, warn about string
	concatenation only once per line.

Thu Jul 27 09:25:17 2000  Akiko Matsushita  <matusita@sra.co.jp>

	* pa/x-pa-hpux: Add -D_HIUX_SOURCE to FIXPROTO_DEFINES
	for HI-UX/WE2 systems.

2000-07-24  Bruce Korb  <bkorb@gnu.org>

	* fixincl/fixfixes.c(emit_gnu_type): rewrote to *rely* on GCC
	defining the __xxx_TYPE__ macros.
	* fixincl/fixincl.tpl(gnu_type_map): now obsolete
	* fixincl/fixlib.h: don't need to include "tm.h" anymore
	* fixincl/inclhack.def(type_map): now obsolete

Thu Jul 27 11:54:17 2000  Andrew Cagney  <cagney@b1.cygnus.com>

	* cpp.texi: Append a trailing full-stop to xrefs where needed.

2000-07-26  Dave Pitts  <dpitts@cozx.com>

	* i370.c: Remove LONGEXTERNAL ifdef from alias_number. Added hash
	routine constants.
	(mvs_hash_alias): New function.
	(mvs_add_alias): Change argument spacing.
	(mvs_need_alias): Change aliasing criteria. Added documentation.
	(mvs_get_alias): Change to use hashed name. The hashed name prevents
	CSECT name collisions.
	(mvs_check_alias): Likewise.
	(handle_pragma): Change documentation.
	* i370.md (mulsi3, divsi3, udivsi3, modsi3, umodsi3): Changed gen_rtx
	mode from SImode to DImode.
	(iorhi3): Changed LTORG size for insn.

Wed Jul 26 19:44:05 2000   Hans-Peter Nilsson  <hp@axis.com>

	* reload.c (find_reloads_toplev): Reload a paradoxical subreg of a
	mem if the address is a mode_dependent_address_p.

2000-07-26  Kazu Hirata  <kazu@hxi.com>

	* h8300.c (print_operand): Print ":8" when the 'R' operand is
	suitable for 8-bit absolute.
	* h8300.h (EIGHTBIT_CONSTANT_ADDRESS_P): New.
	(OK_FOR_U): Add a case for the 8-bit constant address on the
	H8/300H.

Wed Jul 26 19:26:21 2000  Hans-Peter Nilsson  <hp@axis.com>

	* varasm.c (assemble_variable) [! defined(ASM_OUTPUT_ALIGNED_COMMON)
	&& ! defined (ASM_OUTPUT_ALIGNED_BSS]): Also test
	! defined(ASM_OUTPUT_ALIGNED_DECL_COMMON) before complaining about
	lack of implemented alignment.

2000-07-26  Geoffrey Keating  <geoffk@cygnus.com>

	* emit-rtl.c (gen_lowpart_common) [REAL_ARITHMETIC]: Handle
	cross-compiling between 64-bit and 32-bit machines.

2000-07-27  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.md (movqicc_astep, movqi_internal_astep): New.
	(movhicc_astep, movhi_internal_astep): New.
	(movsicc_astep, movsi_internal_astep): New.
	(movdicc_astep, movdi_internal_astep): New.
	(movsfcc_astep, movsf_internal_astep): New.
	(movdfcc_astep, movdf_internal_astep): New.
	(movxfcc_astep, movxf_internal_astep): New.
	(cmovdi_internal_astep, cmovsi_internal_astep): New.
	Unify the cmov[ds]i splitters.

2000-07-27  Rodney Brown  <RodneyBrown@pmsc.com>

	* real.c (asctoeg): Rename `error' label to unexpected_char_error

2000-07-26  Nick Clifton  <nickc@cygnus.com>

	* config/arm/vxarm.h (CPP_PREDEFINES): Remove definition of
	__arm__.  Allow it to be defined by CPP_ISA_SPEC in arm.h

	* dwarf2out.c (dwarf2out_frame_debug_expr): Accept SEQUENCE as
	well as PARALLEL blocks in FRAME_RELATED_EXPR notes.

2000-07-26  Alexandre Oliva  <aoliva@redhat.com>

	* c-decl.c (finish_enum): Convert enumerations that fit in an
	`int' to `int'.
	(build_enumerator): In pedantic mode, cast to `int' those that
	don't.

2000-07-25  Rodney Brown  <RodneyBrown@pmsc.com>

	* config/alpha/osf.h (SIZE_TYPE, PTRDIFF_TYPE): New.

Tue Jul 25 23:08:33 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* sh.md (cmpgtdi_t): Must be split.
	(cmpgtdi_t+1): New splitter.

2000-07-25  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.c (_cpp_check_directive): Issue -Wtraditional
	warnings for indented directives even if we are skipping.

2000-07-25  Nathan Sidwell  <nathan@codesourcery.com>

	* invoke.texi (strict-prototypes): Remove.
	* extend.texi (Deprecated Features): Add strict-prototypes.
	(Backwards Compatibility): New node.

2000-07-25  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.md (andsi_1+1): Allow HImode.
	(andsi_1+2): Require q_regs_operand.

2000-07-25  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.md (call_pop): Check operands[0],
	not operands[1]. Only check SYMBOL_REF_FLAG for a SYMBOL_REF.
	(call): Likewise.
	(call_value_pop): Only check SYMBOL_REF_FLAG for a SYMBOL_REF.
	(call_value): Likewise.

2000-07-25  Zack Weinberg  <zack@wolery.cumb.org>

	* toplev.c (pipe_closed): Delete.
	(crash_signal): New.  Generate ICE for a fatal signal.
	(float_signal): Call crash_signal outside a float-handler
	block, not abort.
	(main): Install crash_signal as handler for core-dumping signals.

2000-07-25  David Edelsohn  <edelsohn@gnu.org>

	* rs6000.c (print_operand, case 'T'): New case.

	* rs6000.md (call_indirect_aix32): Convert to expander of
	scheduled instructions.
	(call_indirect_aix64): Likewise.
	(call_value_indirect_aix{32,64}): Likewise.
	(call, call_value): Invoke expanders for AIX.  Fall through to
	matchers for SysV.
	(call_indirect_nonlocal_aix{32,64}): New patterns (ctr and lr).
	(call_value_indirect_nonlocal_aix{32,64}): New patterns.
	(call_nonlocal_aix32): Remove CALL_LONG alternative.  Operand 1
	only "g" constraint.
	(call_nonlocal_aix64): Likewise.
	(call_value_nonlocal_aix{32,64}): Likewise.
	(call_nonlocal_sysv): New pattern for ctr, lr, and symbolic
	operands.
	(call_value_nonlocal_sysv): New pattern.
	(indirect_jump{si,di}): Use new 'T' modifier.
	(tablejump{si,di} matchers): Likewise.
	(return_internal_{si,di}): Likewise.
	(return_eh_{si,di}): Likewise.

2000-07-24  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.c (ia64_print_operand): Handle "%,".
	* config/ia64/ia64.h (PRINT_OPERAND_PUNCT_VALID_P): Likewise.
	* config/ia64/ia64.md (movdi_internal): Use it.

2000-07-24  Zack Weinberg  <zack@wolery.cumb.org>

	* cppexp.c: Warn about unary + if -Wtraditional.
	* cpplex.c (lex_line): Always set BOL on the first token of a line.

2000-07-24  Michael Meissner  <meissner@redhat.com>

	* d30v.h (FUNCTION_ARG_KEEP_AS_REFERENCE): Delete references to
	unsupported macro.

2000-07-24  Nick Clifton  <nickc@cygnus.com>

	* config/arm/arm.c (emit_multi_reg_push): Generate a
	REG_FRAME_RELEATED_NOTE that is compatable with the code in
	dwarf2out_debug_frame_expr.

2000-07-24  Jason Merrill  <jason@redhat.com>

	* dwarf2out.c: Complain if DWARF2_DEBUGGING_INFO is defined without
	UNALIGNED_INT_ASM_OP.
	(def_cfa_1): Don't emit def_cfa_register or def_cfa_offset to adjust
	a location expression.
	(dwarf2out_frame_debug_expr): Lose cfa_old_reg stuff.  Don't
	assume indirect access if we're saving the CFA address exactly.

	* Makefile.in (bootstrap): Move -BstageN/ to the end.

2000-07-24  Jakub Jelinek  <jakub@redhat.com>

	* tradcpp.c (main): Update max_include_len for cpp_include_defaults
	as well.

2000-07-24  Michael Meissner  <meissner@redhat.com>

	* invoke.texi (D30V Options): Add d30v options.

Mon Jul 24 02:04:52 2000  Jeffrey A Law  (law@cygnus.com)

	* gcse.c (alloc_pre_mem): Do not alloc TRANSPOUT, it is not
	needed by our gcse pass anymore.
	(free_pre_mem): Corresponding changes.
	(compute_pre_data): Do not call compute_transpout anymore.

	* gcse.c (alloc_avail_expr_mem): Kill unused 'u_bitmap'.
	(free_avail_expr_mem, alloc_pre_mem, free_pre_mem): Corresponding
	changes.

	* gcse.c (free_pre_mem): Do not free ANTLOC and AE_KILL here.
	(compute_pre_data): Do it here instead.

	* gcse.c (alloc_pre_mem, free_pre_mem): Delete unused bitmap
	'temp_bitmap'.
	(pre_delete): Corresponding changes.

2000-07-23  Mark Mitchell  <mark@codesourcery.com>

	* c-semantics.c (make_rtl_for_local_static): Use TREE_ASM_WRITTEN
	to figure out whether or not a variable has already been emitted.

Sun Jul 23 14:49:12 2000  Jason Eckhardt  <jle@cygnus.com>

	* config/i860/i860.md (untyped_call expander): Use GEN_CALL
	instead of gen_call.

Sun Jul 23 11:52:03 2000  George Helffrich (george@gly.bris.ac.uk)

	* dbxout.c (dbxout_type, case COMPLEX_TYPE): Fix length field in stab.

2000-07-23  Kazu Hirata  <kazu@hxi.com>

	* h8300.c: Fix formatting.

2000-07-23  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-typeck.c (c_expand_start_case): Change -Wtraditional pedwarn
	for `long' switch expression into a plain warning.

	* c-lex.c (init_lex): Keep the "inline" keyword in C99 mode.
	(yylex): Don't pedwarn for "inline" in C99 mode.

	* bitmap.c (debug_bitmap_file): Cast pointers to PTR for printing
	with %p.
	* ggc-page.c (debug_print_page_list, alloc_page, free_page,
	ggc_alloc): Likewise.
	* bb-reorder.c (dump_scope_forest_1): Likewise.

2000-07-22  Aldy Hernandez  <aldyh@redhat.com>

	* reload.c (find_reloads_toplev): Add new parameter
	"address_reloaded".
	(find_reloads): Add new parameter to find_reloads_toplev calls.

2000-07-22  Jeffrey Oldham  <oldham@codesourcery.com>

	* collect2.c (main): Typo fixed.
	* diagnostic.c: Typo fixed.
	* dwarf2out.c (dwarf2out_frame_debug_expr): Typo fixed.
	* eh-common.h: Typo fixed.
	* emit-rtl.c (start_sequence): Typo fixed.
	* flow.c (find_label_refs): Typo fixed.
	(calculate_global_regs_live): Typo fixed.
	(mark_regno_cond_dead): Typo fixed.
	(create_edge_list): Typos fixed.
	(verify_edge_list): Typo fixed.
	* ggc-common.c (ggc_mark_rtx_children): Typo fixed.
	* loop.c (strength_reduce): Typo in function name fixed.
	* rtl.h: Added comments.  Typo in function name fixed.
	* rtlanal.c: Typo in function name fixed.
	(insn_dependant_p): Rename to ...
	(insn_dependent_p): ... this.
	(computed_jumo_p): Typo fixed.

2000-07-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* system.h (__FUNCTION__): Wrap definition in #ifndef.

2000-07-21  David Edelsohn  <edelsohn@gnu.org>

	* rs6000.h (SIZE_TYPE): Define.

2000-07-21  Mark Mitchell  <mark@codesourcery.com>

	* ssa.c (rename_insn_1): Don't rename registers that are
	CLOBBERed.

2000-07-21  Zack Weinberg  <zack@wolery.cumb.org>

	* diagnostic.c (trim_filename, fancy_abort): Moved here from
	rtl.c.
	(fatal_function, set_fatal_function): Removed.
	(fatal): Don't prepare for or call the fatal_function.
	(diagnostic_lock, error_recursion): New.
	(diagnostic_for_decl, report_diagnostic): Guard against
	re-entering the error reporting routines.
	(fancy_abort): Assume function is not NULL.

	* errors.c (fancy_abort): New.  Assume function is not NULL.
	* tradcpp.c (fancy_abort): Assume function is not NULL.

	* system.h: Provide default definition of __FUNCTION__.
	* rtl.h: Use __FUNCTION__ not __PRETTY_FUNCTION__ throughout.
	Always use __FUNCTION__ in definition of abort.
	* tree.h: Likewise.
	* varray.h: Likewise.
	* toplev.h: Likewise.  Don't prototype set_fatal_function.

2000-07-20  Geoff Keating  <geoffk@cygnus.com>

	* config/rs6000/aix43.h (CPP_SPEC): Define __LONG_MAX__ correctly
	in 64-bit mode.
	* glimits.h: Don't do #if defined for ARCH_PPC.

	* config/rs6000/rs6000.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): All
	constants of size no larger than a pointer should go in the TOC.
	Add 'MODE' parameter.
	(LEGITIMIZE_RELOAD_ADDRESS): Add MODE parameter to
	ASM_OUTPUT_SPECIAL_POOL_ENTRY_P.
	(ASM_OUTPUT_SPECIAL_POOL_ENTRY): Likewise.
	* config/rs6000/aix.h (SELECT_RTX_SECTION): Likewise.
	* config/rs6000/netware.h (SELECT_RTX_SECTION): Likewise.
	* config/rs6000/rs6000.c (constant_pool_expr_1): Likewise.
	(rs6000_legitimize_address): Likewise.
	(rs6000_emit_move): Likewise.
	(rs6000_select_rtx_section): Likewise.
	(output_toc): Deal properly with outputting small constants like
	HImode, and SFmode in 32-bit mode, and DFmode in 64-bit mode.
	* config/rs6000/sysv4.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Add
	MODE parameter.  Put small constants in the TOC.

	* config/rs6000/rs6000.c (easy_fp_constant_p): All constants are
	easy in SImode.
	(rs6000_emit_move): When reload calls us with an illegitimate
	address, exit early.  Move the change_address calls to one place
	at the end of the routine.  Merge the SImode and DImode expanders.
	When called by reload to put an integer into a FP register, force
	it to memory.

	* config/rs6000/rs6000.c (struct toc_hash_struct): Add 'key_mode'
	field.
	(rs6000_hash_constant): Hash mode too.
	(toc_hash_function): Allow for key_mode.
	(toc_hash_eq): Structures are different if key_mode differs.
	(output_toc): Add 'mode' parameter.  Save key_mode.
	* config/rs6000/rs6000.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY):
	Pass 'mode' parameter.
	* config/rs6000/rs6000-protos.h (output_toc): Add 'mode' param.

	* config/rs6000/rs6000.c (output_toc): Use RS6000_OUTPUT_BASENAME
	for vtable references.

	* config/rs6000/rs6000.h (PREFERRED_RELOAD_CLASS): If we have a
	choice, don't put integer values in FP regs.

Thu Jul 20 18:13:52 2000  Jeffrey A Law  (law@cygnus.com)

	* flow.c (verify_flow_info): Revamp code to verify that the
	head and end of each basic block are in the insn chain.

Thu Jul 20 18:02:35 2000  Michael Matz <matzmich@cs.tu-berlin.de>

	* gcse.c (record_one_set): Prepend instead of append onto
	reg_set_table, making it O(n) instead O(n^2).
	* lcm.c (compute_antinout_edge,compute_laterin,compute_available):
	Use a queue instead of a stack as worklist.

2000-07-20  Kazu Hirata  <kazu@hxi.com>

	* h8300.c (two_insn_adds_subs_operand): Fix a typo.
	* h8300.h (OK_FOR_T): New.
	(EXTRA_CONSTRAINT): Support OK_FOR_T.
	* h8300.md: Use inc/dec.[wl] for increment/decrement
	by 1 and 2 in HI and SI modes.

2000-07-20  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64.h (ASM_OUTPUT_MI_THUNK): Handle DELTA values
	larger than 14 bits.

2000-07-20  Zack Weinberg  <zack@wolery.cumb.org>

	* cppmacro.c (CAN_PASTE_AFTER): New macro.
	(count_params): Don't set GNU_REST_ARGS on anything.
	(save_expansion): Set PASTE_LEFT only on tokens for which
	CAN_PASTE_AFTER is true, or which are named operators.

	* cpplex.c (parse_args): Distinguish between a rest argument
	given one empty argument, and a rest argument given zero arguments.
	(maybe_paste_with_next): Look for VOID_REST tag, and trigger
	deletion of previous token based on that.
	(get_raw_token): Flatten some control structure.

	* cpplib.h (CPP_LAST_EQ): Correct.
	(VOID_REST): New token flag.
	(GNU_REST_ARGS): Delete.

	* tradcpp.c (main): Don't munge -D options.
	(make_definition): Bring -D handling in line with cpplib.
	(do_define): Strip all leading whitespace from macro definitions.

2000-07-20  David Billinghurst <David.Billinghurst@riotinto.com.au>

	* Makefile.in (tradcpp): Depend on intl.o and version.o.

2000-07-20  Bruce Korb  <bkorb@gnu.org>

	* fixincl/check.tpl: strip the platform specific types before testing
	* fixincl/fixfixes.c(gnu_type_fix): use platform specific types
	* fixincl/fixincl.tpl: use platform specific types
	* fixincl/fixlib.h: include the platform specific types
	* fixincl/inclhack.def(gnu_types): don't supply the types
	* fixincl/fixincl.x: regen

2000-07-19  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64.h (HARD_REGNO_MODE_OK): Don't allow XFmode in
	GR_REGS.

2000-07-19  Zack Weinberg  <zack@wolery.cumb.org>

	* tradcpp.c (rescan): Do not recognize directives when the #
	is indented.

2000-07-19  Zack Weinberg  <zack@wolery.cumb.org>

	Implement C++ named operators.

	* cpplib.h (TTYPE_TABLE): Move CPP_MIN and CPP_MAX into block
	of operators allowed in #if and having an _EQ variant.  Add
	CPP_MIN_EQ, CPP_MAX_EQ, and CPP_DEFINED.
	(cpp_token flags): Add NAMED_OP.
	(enum node_type): Add T_OPERATOR.
	(struct cpp_hashnode): Add code slot to value union.
	* cpphash.h (spec_nodes): Remove n_defined.

	* cpplex.c (lex_line): Convert T_OPERATOR nodes to their proper types.
	(spell_token, can_paste, maybe_paste_with_next): Handle named operators.
	(is_macro_disabled): Tweak error messages.

	* cpplib.c (get_define_node): Disallow all named operators as
	macro names.  Tweak error messages.
	(_cpp_init_stacks): Don't set up spec_nodes->n_defined.

	* cppinit.c (builtin_array): Add entries for the named operators.
	* cppexp.c (lex): Check for CPP_DEFINED token.
	(priority table): Add entries for CPP_MIN and CPP_MAX.
	(_cpp_parse_expr): Handle CPP_MIN and CPP_MAX.

2000-07-19  Bernd Schmidt  <bernds@cygnus.co.uk>

	* gcse.c (INSN_CUID): If ENABLE_CHECKING, abort if the uid is
	larger than the array of cuids.
	(alloc_gcse_mem): Use uid_cuid rather than INSN_CUID when computing
	cuids.

2000-07-19  Bruce Korb  <bkorb@gnu.org>

	* fixinc/fixincl.c:  Convert to using a table of environment variables
	and activate the auto-edit marker on the fixed output files.
	* fixinc/fixlib.h:  Define the environment table
	* fixinc/fixincl.sh: export the ${INPUT} dir
	* fixinc/check.tpl: likewise

2000-07-18  Zack Weinberg  <zack@wolery.cumb.org>

	* gcc.c (.h spec): Fix typo.

Wed Jul 19 01:22:15 CEST 2000  Marc Espie  <espie@cvs.openbsd.org>

	* Makefile.in: Fix tradcif.c path.

2000-07-18  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.h (TTYPE_TABLE): Rearrange to use only two per-entry
	  macros, not five.

	* cpphash.h (TOKEN_NAME): New macro.
	(_cpp_spell_operator): Deleted.
	(token_spellings): Now _cpp_token_spellings.

	* cppexp.c: Use TOKEN_NAME or TYPE_NAME, not _cpp_spell_operator.
	* cpplex.c: Use OP and TK macros when expanding the
	TTYPE_TABLE.  Eliminate token_names.  For non-OPERATOR tokens,
	store the stringification of the enumeration name (CPP_CHAR,
	etc.) in the name slot of token_spellings.
	Use TOKEN_NAME and/or TOKEN_SPELL, do not reference
	token_spellings directly.
	* cpplib.c: Use TOKEN_SPELL.

	* cpplex.c (_cpp_push_token): If the token being pushed back
	is the previous token in this context, just subtract one from
	context->posn.
	* cppmacro.c (save_expansion): Clear aux field when storing a
	placemarker.

2000-07-18  Jakub Jelinek  <jakub@redhat.com>

	* cpplex.c (cpp_scan_buffer): Output line command even at the stop
	buffer, provided it is not NULL.

2000-07-18  Alexandre Oliva  <aoliva@redhat.com>

	* c-decl.c (duplicate_decls): Do not call make_var_volatile() in
	case of invalid volatile re-declaration.

2000-07-18  Jakub Jelinek  <jakub@redhat.com>

	* calls.c (store_arg): Return non-zero if sibcall_failure is desired.
	(expand_call): Adjust caller.

2000-07-17  Gabriel Dos Reis  <gdr@codesourcery.com>

	* diagnostic.h (report_diagnostic): Change prototype.

	* diagnostic.c (output_do_verbatim, diagnostic_for_asm,
	diagnostic_for_decl):  Change prototype.
	(error_with_decl, warning_with_decl, pedwarn_with_decl, warning,
	error, warning, error_with_file_and_line,
	warning_with_file_and_line, pedwarn_with_file_and_line, fatal):
	Adjust call to report_diagnostic, diagnostic_for_decl.
	(error_for_asm, warning_for_asm): Adjust call to diagnostic_for_asm.
	(output_verbatim, verbatim): Adjust call to output_do_verbatim.

	* c-errors.c (pedwarn_c99): Adjust call to report_diagnostic. End
	varaible argument list.

2000-07-17  Zack Weinberg  <zack@wolery.cumb.org>

	* cpphash.c: Don't include hashtab.h.  Most macro-handling code
	moved to cppmacro.c.
	(hash_HASHNODE, eq_HASHNODE, _cpp_dump_macro_hash,
	dump_hash_helper): Delete.
	(expand_hash, higher_prime_number, _cpp_lookup_with_hash,
	cpp_forall_identifiers): New. Implement specialized version of
	Vlad's expandable hash table.
	(cpp_lookup): Use new functions.
	(_cpp_init_macros, _cpp_cleanup_macros): Adjust for new
	implementation.
	* cppmacro.c: New file.
	* cppinit.c (dump_macros_helper): New.
	(cpp_finish): Iterate over the identifier table directly.
	* cpplex.c (parse_name): Calculate the hash of the identifier
	while we scan it.  Use _cpp_lookup_with_hash when we can.

	* cpphash.h: Update prototypes.
	(xcnewvec, HASHSTEP): New helper macros.
	* cpplib.h: Update prototypes.
	* Makefile.in (LIBCPP_OBJS): Add cppmacro.o.
	(cppmacro.o): New rule.
	(cpphash.o): Update deps.

	* cppmain.c: Do not set pfile->printer if no_output is on.

2000-07-15  Neil Booth  <neilb@earthling.net>

	* cpplib.c: Change all directive-handler functions to return
	void, not int.
	* cpphash.h: Update typedefs.

2000-07-17  Geoffrey Keating  <geoffk@cygnus.com>

	* configure: Regenerate.

	* extend.texi (Extended Asm): Mention that a memory clobber
	does not count as a side-effect.

	* unroll.c (copy_loop_body): Fix one instance of using host
	arithmetic on the target; fixes loop-4 on a 32-bit -> 64-bit
	cross-compile.

	* tlink.c (scan_linker_output): Tweak for output of AIX ld.

2000-07-17  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.md (movdi): Split out load address code.
	New post-reload splitter for symbolic operands.
	(movdi_internal): Abort if we didn't split symbolic operands
	when we should have.
	* config/ia64/ia64.c (ia64_expand_load_address): New, from movdi bits.
	(ia64_reorg): Split insns when not optimizing.
	* config/ia64/ia64-protos.h (ia64_expand_load_address): Declare.

Mon Jul 17 23:43:26 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* real.h (REAL_VALUE_TO_TARGET_LONG_DOUBLE): Use LONG_DOUBLE_TYPE_SIZE
	instead of MAX_LONG_DOUBLE_TYPE_SIZE to decide output format.

2000-07-17  Chandrakala Chavva   <cchavva@cygnus.com>

	* loop.c (check_dbra_loop) : Changed loop_continue to loop->cont.

2000-07-17  Jason Merrill  <jason@redhat.com>

	* Makefile.in (clean): Remove libgcc directory.

	* configure.in (-Wno-long-long check): Use higher-level macros.

2000-07-17  Zack Weinberg  <zack@wolery.cumb.org>

	* simplify-rtx.c (simplify_binary_operation): Recognize
	   (compare (gt[u] (cc) 0) (lt[u] (cc) 0)).
	(simplify_ternary_operation):  Do not examine MODE_BITSIZE of
	   a CONST_INT, it will always be zero.

2000-07-17  Chandrakala Chavva   <cchavva@cygnus.com>

	* loop.c (check_dbra_loop) : Return if more than one condition is
	present to control the loop.

Mon Jul 17 08:26:35 2000  Clinton Popetz  <cpopetz@cygnus.com>

	* mips.c (mips_expand_prologue): Don't calculate the last argument
	register unless we need it.  When we are calculating this, make
	sure FUNCTION_ARG is giving us a REG.

2000-07-17  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* flow.c (libcall_dead_p): Use single_set to verify the insn
	has only one set and get for analysis.
	(propagate_one_insn): Don't pass the PATTERN of the insn.

2000-07-17  Mark Klein <mklein@dis.com>

	 * pa.c (emit_hpdiv_const): Update to match new pattern for udivsi3.

2000-07-17  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* Makefile.in (TARGET_GETGROUPS_T): New configuration variable.
	* configure.in (TARGET_GETGROUPS_T): Evaluate.
	* sys-protos.h (getgroups): Use TARGET_GETGROUPS_T for array type
	of second argument of getgroups.
	* configure, config.in: Rebuilt.

2000-07-17  Geoffrey Keating  <geoffk@cygnus.com>

	* simplify-rtx.c (simplify_relational_operation): Two signed
	values with equal high words are less/greater than each other if
	their low words are less/greater when considered as unsigned.

Mon Jul 17 02:37:06 2000  Marc Espie <espie@openbsd.org>

	* configure.in (vax-*-openbsd):  Change to new style configuration,
	add collect2/float_format information.
	* configure:  Rebuilt.
	* config/vax/openbsd1.h:  New.
	* config/vax/openbsd.h:  New.
	* config/vax/t-openbsd:  New.

2000-07-17  Chip Salzenberg  <chip@valinux.com>

	* c-common.c (shorten_compare): Quiet warnings about unsigned
	comparisons with zero when they occur in a system header.

2000-07-17  Joseph S. Myers  <jsm28@cam.ac.uk>

	* invoke.texi (-pedantic): Refer to ISO C instead of ANSI C, and
	update to describe current practice.

	* glimits.h (LLONG_MIN, LLONG_MAX, ULLONG_MAX): Define for C99.

	* contrib.texi, cpp.texi, extend.texi, invoke.texi: Update
	references to C9X.  Change references to -fstd and -flang-isoc9x
	to refer to -std.

	* c-common.c (scan_char_table): Allow "z" length modifiers on
	diouxXn formats.
	(check_format_info): Use TYPE_DOMAIN on the type matched against
	for "z" formats, to retrieve the language size_t rather than the
	internal one.

	* c-common.c (check_format_info): Do not make a pedantic objection
	to the 'L' length modifier if used with a floating point type
	character.

	* c-lex.c (yylex): Don't pedwarn for hexadecimal floating point
	constants in C99 mode.

2000-07-17  Kazu Hirata  <kazu@hxi.com>

	* h8300.md: Fix the format of mac.
	(movsi_h8300hs): Output a tab after stmac instead of a space.

	* h8300.c (two_insn_adds_subs_operand): Improve code for detecting
	profitable adds/subs sequences.

	* fold-const.c: Fix comment typos.

2000-07-16  Laurynas Biveinis  <lauras@softhome.net>

	* cppfiles.c (read_name_map): Set map_list_ptr->map_list_map to NULL.

2000-07-16  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* fixinc/fixfixes.c (emit_gnu_type): Avoid string concatenation.

2000-07-16  Neil Booth  <NeilB@earthling.net>

	* cpplex.c: Update comments.
	* README.Portability: Small update.

2000-07-16  Neil Booth  <NeilB@earthling.net>

	* README.Portability:  Small update.

2000-07-15  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64-protos.h (ia64_move_ok): Prototype.
	* config/ia64/ia64.c (ia64_move_ok): New function.
	* config/ia64/ia64.md (movqi, movqi_internal): Use it.
	(movhi, movsi, movdi, movsf, movdf, movxf): Likewise.

2000-07-15  Zack Weinberg  <zack@wolery.cumb.org>

	* cpphash.c (save_expansion): Clear PREV_WHITE on tokens
	immediately following a paste operator.
	* cppinit.c (sort_options): New function (only for HOST_EBCDIC).
	(cpp_reader_init): Call it, if HOST_EBCDIC.
	(cpp_handle_options): Do not sort option list here.
	(handle_option): Rename to cpp_handle_option and export.
	* cpplex.c (cpp_scan_buffer_nooutput, cpp_scan_buffer): Use
	_cpp_get_token directly.
	(cpp_scan_line): Return 0 at EOF, 1 otherwise.
	* cpplib.c (cpp_push_buffer): Don't set new->lineno to 1.
	* cpplib.h: Prototype cpp_handle_option.  Update prototype of
	cpp_scan_line.

2000-07-15  Richard Henderson  <rth@cygnus.com>

	* fold-const.c (extract_muldiv): Don't optimize past an unsigned
	cast around an expression.  Tidy other unsigned tests.

2000-07-15  Gabriel Dos Reis  <gdr@codesourcery.com>

	* diagnostic.c (doing_line_wrapping, line_wrapper_printf, notice,
	v_error_with_decl, v_warning_with_decl, v_pedwarn_with_decl): Remove.
	(v_message_with_decl): Rename to ...
	(format_with_decl): ... this. Tweak
	(diagnostic_for_decl): New function.
	(fatal_io_error): Use verbatim in lieu of notice.
	(announce_function): Use verbatim.
	(default_print_error_function): Likewise.
	(error_with_decl, warning_with_decl, pedwarn_with_decl): Use new
	infratructure.

2000-07-15  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* mips.c (function_arg_pass_by_reference): Don't do automatic
	aggregate initialization.
	(machine_dependent_reorg): Initialize variable `mode'.

	* mips.md (absdi2): Change variable `regno1' to unsigned int.
	(reload_indi): Rename loword/hiword to lo_word/hi_word to avoid
	conflicts with sys/param.h macro of the same name.
	(reload_outdi): Likewise.

2000-07-15  Michael Meissner  <meissner@redhat.com>

	* fold-const.c (fold): When optimizing FOO++ == CONST into ++FOO
	== CONST + INCREMENT, don't overwrite the tree node for FOO++,
	create a new node instead.

2000-07-15  Neil Booth  <NeilB@earthling.net>

	* README.Portability: Correct example about calling a function
	through a pointer to function.  Format wide paragraphs.

2000-07-15  Michael Meissner  <meissner@redhat.com>

	* README.Portability: Update integer suffixes and function
	prototype sections.

2000-07-15  Neil Booth  <NeilB@earthling.net>

	* README.Portability: Small update.

2000-07-15  Neil Booth  <NeilB@earthling.net>

	* README.Portability: New file.

Fri Jul 14 18:13:53 2000  Mark P Mitchell  <mark@codesourcery.com>

	* INSTALL: Give special instructions for building GCC on Irix 6.
	* config/mips/x-iris6 (CC): Don't set it.
	(OLDCC): Likewise.

2000-07-14  Jason Merrill  <jason@redhat.com>

	* dwarf2out.c (dwarf2out_frame_debug_expr): If we store the CFA
	register in the stack and later in another register, use the new
	register.

Fri Jul 14 10:25:53 2000  Clinton Popetz  <cpopetz@cygnus.com>

	* config/mips/mips.md: (absdi2): Handle sign_extend for
	second operand.

2000-07-14  Nathan Sidwell  <nathan@codesourcery.com>

	* cpplib.c (do_pragma_dependency): Tidy warning messages.

2000-07-14  Zack Weinberg  <zack@wolery.cumb.org>

	* .cvsignore: Correct typo.

2000-07-13  Mark Mitchell  <mark@codesourcery.com>

	* .cvsignore: Add generated YACC files.
	* objc/.cvsignore: New file.

2000-07-14  Neil Booth  <NeilB@earthling.net>

	* cpplex.c (adjust_column): New funcion.
	(skip_whitespace): Use it.
	(skip_block_comment): Use it, and warn about /*/* with
	-Wcomments.

2000-07-14  Neil Booth  <NeilB@earthling.net>

	* cpphash.c (struct macro_info): Add new members.
	(_cpp_free_definition): Delete the macro directly.
	(count_params): Return void, with first token of
	expansion in struct macro_info on success.
	(parse_define): Return int.  Hoist syntax checking from
	save_macro_expansion.  Leave call to save_expansion to
	_cpp_create_definition.
	(alloc_macro): Needs just 2 arguments.
	(free_macro): Delete.
	(save_expansion): Don't perform syntax check.
	(_cpp_create_definition): Call save_expansion.

2000-07-13  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* genrecog.c (write_header): Split long string.

	* cpphash.c (macro_info): Don't use the `signed' keyword.

	* system.h (alloca): Prototype if __GNUC__ && __SIZE_TYPE__.

2000-07-13  Jakub Jelinek  <jakub@redhat.com>

	* calls.c (stored_args_map): New variable.
	(check_sibcall_argument_overlap_1): New.
	(check_sibcall_argument_overlap): New.
	(expand_call): Initialize stored_args_map.
	Call check_sibcall_argument_overlap.

2000-07-13  Bruce Korb  <bkorb@gnu.org>

	* fixinc/fixfixes.c: move EXIT_BROKEN to header, add sub-expr max count
	(emit_gnu_type): utility procedure for gnu_type_fix
	(gnu_type_fix): implement various pre-processor guards around
	standard types so these types can be defined over and over
	* fixinc/fixincl.tpl: add a "gnu_type_map" that forces the standard
	types alluded to above will have GNU-compliant base types
	* fixinc/fixlib.h: add EXIT_BROKEN define and the gnu_type_map struct
	* fixinc/inclhack.def: add test_text entries and utilize the new
	"gnu_types" fix for the ptrdiff_t, size_t and wchar_t types.
	* fixinc/fixincl.x: regenerate

2000-07-12  Gabriel Dos Reis  <gdr@merlin.codesourcery.com>

	* diagnostic.c (vline_wrapper_message_with_location,
	v_message_with_file_and_line, v_error_with_file_and_file,
	v_error_for_asm, v_warning_for_asm, vfatal,
	v_warning_with_file_and_line, v_pedwarn_with_file_and_line,
	vsorry, verror, vwarning, vpedwarn): Remove.
	(diagnostic_for_asm): New function.
	(pedwarn, error, warning, pedwarn_with_file_and_line,
	error_with_file_and_line, warning_with_file_and_line, sorry,
	error_for_asm, warning_for_asm, fatal): Reimplement.
	(finish_diagnostic): Clear diagnostic info as well.

2000-07-13  Neil Booth  <NeilB@earthling.net>

	* c-common.h (flag_digraphs): New.
	* c-decl.c (c_decode_option): Set flag_digraphs as appropriate.
	* c-lex.c (yylex): Use flag_digraphs to decide whether to
	honour digraphs.

2000-07-13  Zack Weinberg  <zack@wolery.cumb.org>

	* gcc.c (do_spec_1): Add new %B operator.
	(set_input): Prepare for %B.

	(link_command_spec): Move up with the other tm.h-
	overrideable specs.  Factor out the portion conditional on
	LINK_LIBGCC_SPECIAL into a new spec, %(link_libgcc).
	(struct compiler): Just have a single spec string.  All users
	updated.
	(default_compilers): Remove unnecessary braces.
	(static_specs): Update.

	(trad_capable_cpp, cpp_options, cc1_options, asm_options): New
	named specs.
	(C and assembly specs): Use the new named specs, as appropriate.

	* objc/lang-specs.h: Use the new named specs.
	Remove unnecessary braces.

2000-07-12  Zack Weinberg  <zack@wolery.cumb.org>

	* gcc.c (execute): If a subprocess gets a fatal signal, report
	strsignal() of the signal number, and ask for a bug report.
	Do not do this for SIGPIPE if there's already been an error.

	* tradcpp.c: Don't include signal.h.  Don't catch SIGPIPE.
	Delete pipe_closed.

	* tradcif.c: Remove.

2000-07-12  Zack Weinberg  <zack@wolery.cumb.org>

	* final.c (profile_function): Do not emit profile counters in
	the data section, if NO_PROFILE_COUNTERS is defined.
	* tm.texi: Document NO_PROFILE_COUNTERS.  Update doc for
	FUNCTION_PROFILER.

	* config/i386/linux.h (NO_PROFILE_COUNTERS): Define.
	(FUNCTION_PROFILER): Just emit a call to mcount.

2000-07-12  Zack Weinberg  <zack@wolery.cumb.org>

	* tradcpp.c (main): Rename 'perror' label to 'sys_error'.

	* cppexp.c, cpphash.c, cpphash.h, cppinit.c, cpplex.c,
	cpplib.c, cpplib.h: Eradicate all traces of code dependent on
	traditional, lang_chill, or lang_fortran.

	* cppfiles.c: #undef strcmp to suppress warning about macros
	used without arguments.
	(_cpp_execute_include): Use f, not fname, in "No include path"
	error.
	(_cpp_pop_file_buffer): New function.
	* cpplib.c: Don't include <sys/mman.h>.
	(cpp_push_buffer): Set line_base and lineno in new buffer.
	(cpp_pop_buffer): Use _cpp_pop_file_buffer.

	* cpplex.c: Move all prototypes and structure declarations to the
	top of the file.  Properly parenthesise some macro arguments.
	(cpp_scan_line): New function.
	(special_symbol [case T_INCLUDE_DEPTH]): Use pfile->include_depth,
	don't need to walk up the stack counting.

2000-07-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-common.c (combine_strings): Emit a pedantic warning when a
	string length is greater than the minimum ANSI C is required
	to support.

Wed Jul 12 13:24:30 2000  Jeffrey A Law  (law@cygnus.com)

	* pa/xm-pa64.h (NO_SYS_SIGLIST): Kill.
	* d30v/xm-d30v.h (NO_SYS_SIGLIST): Kill.

2000-07-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-decl.c (define_label): Warn about identifier conflicts with
	labels in traditional C.

	* c-parse.in (unop +): Warn about the unary plus operator for
	traditional C.

	* c-typeck.c (store_init_value): Warn about automatic aggregate
	initialization for traditional C.

	* invoke.texi (-Wtraditional): Document new warnings.

2000-07-12  Gabriel Dos Reis  <gdr@codesourcery.com>

	* Makefile.in (c-errors.o): Fix thinko in dependency.

2000-07-12  Zack Weinberg  <zack@wolery.cumb.org>

	* gcc.c (C specs [!USE_CPPLIB]): Invoke tradcpp if any of
	-traditional, -ftraditional, or -traditional-cpp was given.
	Do not pass -traditional to the preprocessor.
	(.S spec): Likewise.  Don't bother defining __ASSEMBLER__, the
	preprocessor does it automatically.
	* objc/lang-specs.h: Likewise.  Don't bother defining __OBJC__.

	* ch/lang-specs.h: Always use tradcpp.  Do not pass
	-traditional, -trigraphs, or -pedantic to the preprocessor.
	* f/lang-specs.h (.F spec): Likewise.  Don't bother defining
	_LANGUAGE_FORTRAN.

2000-07-12  Zack Weinberg  <zack@wolery.cumb.org>

	* cppexp.c (LOGICAL): Delete macro.
	(_cpp_parse_expr): Do not use UNARY for unary +.  Implement ||
	and && directly.

	* cpphash.c (HASHSIZE): Increase to 4096.
	(struct hashdummy): Add hash field.
	(eq_HASHNODE): Compare unreduced hashes, then lengths, then
	the string values using memcmp.
	(cpp_lookup): Set dummy.hash.

Wed Jul 12 13:15:16 2000  Marc Espie <espie@openbsd.org>

	* configure.in (m88k-openbsd): Express configuration using new fragment
	style.
	* configure: Rebuilt.
	* m88k/aout-dbx.h: New.
	* m88k/openbsd.h: New.
	* m88k/xm-openbsd.h: New.

2000-07-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* expr.c (expand_expr): Return const0_rtx, not error_mark_node.

2000-07-12  Richard Henderson  <rth@cygnus.com>

	* reload.c (push_secondary_reload): Make sure to add the new
	reload at the end, after acquiring secondary memory.

2000-07-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* cpplex.c (is_macro_disabled): Use CPP_WTRADITIONAL.

	* c-decl.c (set_current_function_name_declared, anon_aggr_type_p,
	lang_expand_stmt): Mark parameters with ATTRIBUTE_UNUSED.

	* c-parse.in (stmt): Delete unused variables.

	* convert.c (convert_to_vector): Likewise.

	* gensupport.c (process_rtx): Declare attr as `rtvec' not `rtx'.

	* tree.c (finish_vector_type): Prototype.

2000-07-12  Bruce Korb  <bkorb@gnu.org>

	* fixinc/fixfixes.c: use xmalloc
	* fixinc/fixincl.c(initialize): set program name for xmalloc
	* fixinc/fixlib.c(must_malloc): obsolete
	(is_cxx_header): no longer used - disabled
	(skip_quote): inserted and disabled for future use
	* fixinc/fixlib.h: reflects above
	* fixinc/fixtests.c: removed dinkleberries

2000-07-12  Neil Booth  <NeilB@earthling.net>

	* cpphash.h: (TOKEN_SPELL) Pulled from cpplex.c.
	* cpplex.c (TOKEN_SPELL) Move to cpphash.h.

	* cpphash.c: (struct macro_info, alloc_macro, free_macro,
	struct toklist_dummy): New.
	(cpp_free_definition): Free macros with free_macro.
	(count_params): Don't save paramter spellings.  Save macro
	information in a struct macro_info.
	(parse_define): Don't allocate a token list.
	(save_expansion): Allocate the macro's token list, and
	save parameter spellings if necessary.  Use TOKEN_SPELL.
	(cpp_create_definition): Make list const.

2000-07-12  Gabriel Dos Reis  <gdr@codesourcery.com>

	* c-typeck.c (pedwarn_c99): Move to
	* c-errors.c: ... Here.
	* toplev.h (verror, vwarning, vpedwarn): Remove prototypes.
	* diagnostic.c (verror, vwarning, vpedwarn): Make static.
	* Makefile.in (C_AND_OBJC_OBJS): Include c-errors.o
	(c-errors.o): List dependency.

2000-07-12  Mark Mitchell  <mark@codesourcery.com>

	* c-parse.c: Remove.
	* c-parse.h: Likewise.
	* c-parse.y: Likewise.
	* objc/objc-parse.c: Likewise.
	* objc/objc-pasre.y: Likewise.

2000-07-11  Rodney Brown  <RodneyBrown@pmsc.com>

	* gcc.texi: Fix minor typos
	* extend.texi: Fix minor typos

2000-07-11  Marc Espie <espie@openbsd.org>

	* collect2.c (main): Recognize .lo as object files.

2000-07-11  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa.c (hppa_encode_label): Store labels in gc memory when ggc_p is
	true.

	* aclocal.m4 (AC_FUNC_MMAP_ANYWHERE): Extend test to detect systems
	with MAP_ANONYMOUS and MAP_ANON.
	* configure, config.in: Rebuilt.

2000-07-12  Gabriel Dos Reis  <gdr@codesourcery.com>

	* diagnostic.c (save_output_state): Remove.
	(restore_output_state): Likewise.
	(clear_text_info): New function.
	(clear_diagnostic_info): Likewise.
	(output_text_length, is_starting_newline, output_prefix,
	line_wrap_cutoff, ideal_line_wrap_cutoff, prefix_was_emitted_for,
	prefixing_policy, output_buffer_ptr_to_format_args): New macros
	(set_real_maximum_length, output_set_maximum_length,
	output_set_prefix, output_get_prefix, output_set_maximum_length,
	output_destroy_prefix, init_output_buffer,
	reshape_diagnostic_buffer, output_space_left, output_emit_prefix,
	output_add_newline, output_add_character, output_add_space,
	output_append_r, output_append, wrap_text, output_format,
	output_do_printf, output_printf, output_do_verbatim,
	output_verbatim, verbatim): Use them.
	(output_clear): Split into cleat_text_info and
	clear_diagnostic_info.
	(struct output_state): Move to...

	* diagnostic.h: ...Here
	(struct output_buffer): Adjust.

2000-07-11  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplex.c (parse_name): No longer inline (premature optimization).
	(do_pop_context): Fold into pop_context.
	(pop_context): Returns int.
	(lex_next): Hoist test for end of directive into pop_context.
	(push_macro_context): Returns int; takes just reader and token.
	Hoist test for excessive nesting to caller.
	(push_arg_context): Returns void; takes just reader and token.
	Do not call stringify_arg or get_raw_token.
	(get_raw_token): Convert tail recursion through	push_arg_context
	to a loop at this level.  Call stringify_arg here if appropriate.
	(maybe_paste_with_next): Convert tail recursion to a while loop.
	Hoist test of paste_level to caller.

	(stringify_arg): Push arg context at beginning.
	(cpp_get_token): Split out core into _cpp_get_token.  Call
	process_directive here.  Throw away CPP_PLACEMARKER tokens.
	(_cpp_get_token): Convert tail recursion through
	push_macro_context to a loop at this level.
	(_cpp_glue_header_name, is_macro_disabled, stringify_arg,
	_cpp_get_raw_token): Use _cpp_get_token.
	(_cpp_skip_rest_of_line): Drop the context stack directly; do
	not call pop_context.
	(_cpp_run_directive): Call lex_next directly.

	* cpphash.h: Prototype _cpp_get_token.
	* cppexp.c (lex): Use it.
	* cpphash.c (parse_define): Use it.
	* cpplib.c (get_define_node, do_undef, parse_include,
	read_line_number, do_line, do_ident, do_pragma, do_pragma_gcc,
	do_pragma_implementation, do_pragma_poison, do_pragma_dependency,
	parse_ifdef, validate_else): Use it.
	(cpp_push_buffer): Tweak error message; abort if anyone tries
	to push a buffer while macro expansions are stacked.

2000-07-11  Donn Terry  <donnte@microsoft.com>

	* cpplex.c (free_macro_args, save_token): Cast arg of free
	and/or xrealloc to PTR.
	(_cpp_init_input_buffer): Clear all fields of the base context.

Tue Jul 11 15:28:21 CDT 2000  Clinton Popetz  <cpopetz@cygnus.com>

	* gensupport.c (process_rtx): Make rtl checking stop
	complaining about the define_insn while it is being
	converted from a define_insn_and_split.

Tue Jul 11 16:26:17 2000  Clinton Popetz  <cpopetz@cygnus.com>

	* config/mips/mips.c (simple_memory_operand): Access the
	INTVAL of the address, not it's containing MEM.

2000-07-11  Bruce Korb  <bkorb@gnu.org>

	* fixinc/fixtests.c(double_slash): obsolete
	(else_endif_label): likewise
	* fixinc/inclhack.def(irix_multiline_cmnt): obsolete
	(libc1_ifdefd_memx): correct initial comment
	and omit the #if/#endif pair from the memxxx declarations
	* fixinc/fixincl.x: regen

2000-07-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* cpplex.c (T, I, S, C, N): Avoid non-constant initializers.

2000-07-11  Neil Booth  <NeilB@earthling.net>

	* cpp.texi: Update.

2000-07-11  Neil Booth  <NeilB@earthling.net>

	* cppinit.c: (cpp_reader_init): Allow digraphs by default.
	(handle_option): Set digraphs according to standard.
	Merge OPT_lang_c89 handler with OPT_std_c89.

	* cpplex.c: (lex_line, can_paste): Honour digraphs in
	accordance with	the digraphs flag.

	* cpplib.h: (struct cpp_options): New option digraphs.

2000-07-10  Hans-Peter Nilsson  <hp@axis.com>
	    Bruce Korb  <bkorb@gnu.org>

	* fixinc/inclhack.def (libc1_ifdefd_memx): New fix.
	* fixinc/fixincl.x: Regenerate.
	* fixinc/tests/base/testing.h: Add testcase.

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

	* config/ia64/ia64.c (got_symbolic_operand): New.
	(symbolic_operand, move_operand): Revert 0701 change.
	* config/ia64/ia64.h (PREDICATE_CODES): Update.
	* config/ia64/ia64-protos.h (got_symbolic_operand): Declare.
	* config/ia64/ia64.md (movdi): Revert 0701 wrt symbolic_operand;
	split the offset into a 14-bit low part instead of a 13-bit low part.
	(load_fptr): Mark the mem as unchanging.
	(load_symptr): Use got_symbolic_operand.

2000-07-10  Nick Clifton  <nickc@cygnus.com>

	* libgcc2.c (next_stack_level): Cast result of computation to
	(void **) so that the assignment does not generate a warning.

2000-07-10  Chandrakala Chavva  <cchavva@redhat.com>

	* flags.h : Add new variable flag_single_precision_constant.
	* toplev.c (display_help) : Add -fsingle-precision-constant option.
	(flag_single_precision_constant): New.
	* c-lex.c (yylex): Convert floating point constant to single
	precision constant.
	* invoke.texi : Add documentation for this new option.

2000-07-10  Gabriel Dos Reis  <gdr@codesourcery.com>

	* diagnostic.c (output_octal): Second parameter is unsigned.
	(output_long_octal): Likewise.
	(output_hexadecimal): Likewise.
	(output_long_hexadecimal): Likewise.
	(output_format): Adjust arguments extraction. Tweak.
	(output_verbatim, verbatim): End variable argument list.
	(report_diagnostic): Improve documentation.

2000-07-10  Benjamin Chelf  <chelf@codesourcery.com>

	* c-common.h (build_stmt): Declare.
	(build_continue_stmt): Likewise.
	(build_break_stmt): Likewise.
	(build_return_stmt): Likewise.

	* c-decl.c (do_case): Rewrite to do what previously done in
	c-parse.in.

	* c-semantics.c (build_stmt): Define.
	(build_return_stmt): Likewise.
	(build_break_stmt): Likewise.
	(build_continue_stmt): Likewise.
	(build_case_label): Likewise.

	* c-parse.in (BREAK): Change to build tree, then generate RTL.
	(CONTINUE): Likewise.
	(RETURN): Likewise.
	(CASE): Likewise.
	(DEFAULT): Likewise.

	* c-parse.y: Regenerate.
	* c-pasre.c: Likewise.

2000-07-09  Jason Merrill  <jason@redhat.com>

	* expr.c (expand_expr): Bail earlier if we get an error_mark_node.

	* tree.h (STRIP_NOPS): Check for error_mark_node.
	(STRIP_SIGN_NOPS, STRIP_TYPE_NOPS): Likewise.
	(dwarf2out_*): Remove duplicate declarations.

	* c-decl.c (duplicate_decls): Copy DECL_ABSTRACT_ORIGIN from
	DECL_ABSTRACT_ORIGIN, not DECL_ORIGIN.

2000-07-10  Gabriel Dos Reis  <gdr@codesourcery.com>

	* diagnostic.c (wrap_text): New function.
	(maybe_wrap_text): Likewise.
	(output_add_string): Use it.
	(output_format): Likewise.
	(count_error): Use verbatim instead of notice.
	(report_error_function): Likewise. Don't use plain fprintf.
	(finish_diagnostic): New function.
	(output_do_verbatim): Tweak.  Commonalize functionalities in
	output_verbatim and verbatim.
	(output_verbatim): Adjust.
	(verbatim): Likewise.
	(report_diagnostic): Define.

	* diagnostic.h (report_diagnostic): Prototype.

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

	* cppexp.c (_cpp_parse_expr): Don't use unary plus.

2000-07-09  Neil Booth  <NeilB@earthling.net>

	* cpphash.h: ISvspace, is_vspace, is_nvspace: New.
	IShspace, ISspace: Update.

	* cppinit.c: ISTABLE: Update.
	V: New.

	* cpplex.c (IS_HSPACE, S_NEWLINE): Remove.
	(IS_DIRECTIVE): Rename KNOWN_DIRECTIVE.
	(skip_block_comment, skip_line_comment,	parse_string,
	lex_line): Use is_vspace rather than IS_NEWLINE.
	(skip_whitespace, lex_line): Clean up to use is_nvspace.
	(lex_line): Use KNOWN_DIRECTIVE.  Any kind of directive
	gets a BOL flag.
	(lex_next): Unconditionally stop if within a directive.
	Treat directives within macro invocations as directives
	(after parse_args emits error), not as the argument.

2000-07-09  Gabriel Dos Reis  <gdr@codesourcery.com>

	* diagnostic.c (diagnostic_args): New macro.
	(diagnostic_msg): Likewise.
	(output_formatted_integer): Likewise.
	(output_state): New data type.
	(digit_buffer): Make global.
	(output_add_integer): Rename to output_decimal. Squeeze
	digit_buffer.
	(output_long_decimal, output_unsigned_decimal,
	output_long_unsigned_decimal, output_octal, output_long_octal,
	output_hexadecimal, output_long_hexadecimal): New functions.
	(output_append_r): New function.
	(output_append): Tweak.
	(output_flush_on): Rename to output_to_stream.
	(output_format): Change prototype.  Improve documentation. Handle
	more format specifiers.
	(build_location_prefix): Rename to context_as_prefix.
	(output_notice): Rename to output_do_printf.
	(output_printf): Tweak.
	(line_wrapper_printf): Likewise.
	(vline_wrapper_message_with_location): Adjust call to renamed
	functions.
	(v_message_with_decl): Likewise.
	(default_print_error_function): Likewise.
	(save_output_state): New function.
	(restore_output_state): Likewise.
	(output_do_verbatim): Likewise.
	(output_verbatim): Define.
	(verbatim): Likewise.

	* diagnostic.h (printer_fn): Change return type from void to int.
	Improve documentation.
	(output_add_integer): Rename to output_decimal.
	(output_flush_on, output_format): Don't export.
	(output_verbatim, verbatim): Declare.

2000-07-08  Toon Moene  <toon@moene.indiv.nluug.nl>

	* fold-const.c (extract_muldiv) case PLUS_EXPR, MINUS_EXPR:
	Check whether c divides op1 exactly if operation is not
	multiplication.

2000-07-08  Richard Henderson  <rth@cygnus.com>

	* final.c (final): Do not abort when reg-stack introduces
	a new insn.

2000-07-08  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.h (struct cpp_name): Now struct cpp_string.
	(CPP_INT, CPP_FLOAT, CPP_NUMBER, CPP_COMMENT,
	CPP_HEADER_NAME): Change to type S.
	(struct cpp_token): Rename 'name' field to 'str'.  Add 'node'
	field, a cpp_hashnode *.  All references to val.name updated
	to use val.str or val.node as appropriate.
	(struct cpp_reader): Add spec_nodes field.
	(cpp_idcmp): Now cpp_ideq; takes a token * and a char *.

	* cpphash.h (struct spec_nodes): New.
	(enum spell_type): Reorder.  Only SPELL_STRING tokens use
	val.str.  All references to 'spelling > SPELL_NONE' updated to
	match.

	(CPP_IN_SYSTEM_HEADER): Check pfile->buffer and
	pfile->buffer->inc are not NULL before dereferencing them.

	* cpplex.c (parse_name): Take a pointer to the current token,
	plus current position and limit as args; return the new
	position; don't copy the text of a name into the string
	buffer, instead call cpp_lookup and store the node pointer.
	If extending a token, copy out the text of the old into a
	scratch buffer, append the new, look that up and store the new
	node pointer.  Inline.
	(maybe_paste_with_next): If the result of paste is a NAME,
	then look up the pasted text and store its node pointer.
	(lex_line): Adjust for new parse_name interface.
	Check for L"str", L'str' using spec_nodes->n_L.
	(spell_token): SPELL_IDENT tokens have their spelling in
	val.node->name.  Handle SPELL_STRING tokens that don't have
	string delimiters.
	(_cpp_expand_name_space,
	(can_paste): Check for L ## "str" using spec_nodes->n_L.
	(cpp_get_token, special_symbol): No need to call cpp_lookup.
	(cpp_idcmp): Now cpp_ideq; take a token * and a const char *;
	return 1=equal 0=not, not a tristate.

	* cpphash.c (var_args_str): Delete.
	(find_param): Compare node fields directly.
	(is__va_args__): Use CPP_PEDANTIC.  Just compare
	token->val.node with spec_nodes->n__VA_ARGS__.
	(dump_funlike_macro): Don't use var_args_str.

	* cpplib.c (_cpp_check_directive): Just walk through
	spec_nodes->dirs comparing pointers.
	(get_define_node, do_pragma_poison, detect_if_not_defined,
	parse_ifdef): The identifier has already been looked up.
	(do_ifdef, do_ifndef): parse_ifdef won't return a poisoned
	node.
	(do_if): Only call detect_if_not_defined at beginning of file.
	(_cpp_parse_assertion): Only copy string pointers for
	SPELL_STRING tokens.
	(pragma_dispatch): Take a node pointer and examine its name
	field.
	(_cpp_init_stacks): Also initialize the spec_nodes structure.

	* cppinit.c (cpp_reader_init): Call _cpp_init_stacks after
	_cpp_init_macros.
	(cpp_cleanup): Free pfile->spec_nodes.  Call _cpp_cleanup_* in
	reverse order from the corresponding _cpp_init_* routines.

	* cppexp.c (parse_number, parse_charconst, parse_defined,
	lex): Check val.node->type instead of calling cpp_defined.
	Use spec_nodes entries where appropriate.

	* fix-header.c, scan-decls.c: Update for interface changes.

2000-07-08  Geoffrey Keating  <geoffk@cygnus.com>

	* config/rs6000/rs6000.c (rs6000_emit_move): Fix conditions for
	emitting aux_truncdfsf2.

2000-07-03  Donn Terry  (donnte@microsoft.com)

	* cppinit.c (print_help): split overlong line into ISO C89
	maximum chunks.

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

	* cppexp.c: Update all code for new lexer interface.
	(op_t, operator codes, struct token, tokentab2, op_to_str): Remove.
	(struct suffix, vsuf_1, vsuf_2, vsuf_3, op_to_prio): New.
	* cpplex.c (token_names): Trim leading CPP_ from names; make
	the strings unsigned.
	(_cpp_spell_operator): New.
	(is_macro_disabled): Disable all macros if rescanning
	preprocessed text.
	(_cpp_get_directive_token): Remove.

	* cppinit.c: Don't set no_macro_expand.
	* cpplib.c (read_line_number, do_line): Check only for EOF,
	not VSPACE.
	* cpphash.h: Update prototypes.
	* cpplib.h (CPP_VSPACE): Remove.
	(struct cpp_reader): Remove no_macro_expand.

2000-07-08  Neil Booth  <NeilB@earthling.net>

	* cpphash.c (is__va_args__): New function.
	(count_params): Fix line reported in error messages.  Use
	is__va_args__.  Don't return ')' on error.  Flag GNU style
	rest args macro definitions.
	(parse_define): Check macro name is not __VA_ARGS__.
	(save_expansion): Check identifier in non-varargs-macro is
	not __VA_ARGS__.  Don't flag GNU_VARARGS.
	* cpplex.c (parse_args): Accept no argument iff GNU_REST_ARGS.
	(maybe_paste_with_next): Use per-macro GNU_REST_ARGS rather
	 than per-token GNU_VARARGS.
	* cpplib.h (GNU_VARARGS): Remove.
	(GNU_REST_ARGS): New.

Sat Jul  8 01:38:25 MET DST 2000  Jan Hubicka  <jh@suse.cz>

	* i386.md (call_pop, call, call_value_pop): Do not set
	current_function_uses_pic_offset_table for calls to static
	functions or indirect calls.

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

	* config/ia64/ia64.c (rws_access_reg): New local write_count.  If
	is_predicate_reg, then take max write_count of register pair.

2000-07-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* tradcpp.c (main): Rename label `include' to `add_include' to
	avoid conflicts with variable `include' in traditional C.

2000-07-07  Jakub Jelinek  <jakub@redhat.com>

	* integrate.c (copy_insn_list): Remove REG_LABEL notes.

2000-07-07  Jakub Jelinek  <jakub@redhat.com>

	* sibcall.c (uses_addressof): Add INMEM argument, check for
	current_function_internal_arg_pointer outside of MEM rtxs in addition
	to ADDRESSOFs.
	(sequence_uses_addressof): Update caller.

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

	* tradcpp.c (initialize_builtins): Honor NO_BUILTIN_SIZE_TYPE
	and friends.

2000-07-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* system.h (UNION_INIT_ZERO): New macro for initializing union
	members in structs.

	* cpplex.c (placemarker_token, eof_token): Use UNION_INIT_ZERO.

2000-07-07  Neil Booth  <NeilB@earthling.net>

	* cpp.texi: Update.

Fri Jul  7 07:47:35 2000  Jeffrey A Law  (law@cygnus.com)

	* final.c (final): Detect out of bounds array access to
	the insn_lengths array.

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

	* fold-const.c (fold): Fix a comment typo.

2000-07-07  Neil Booth  <NeilB@earthling.net>

	* cpp.texi: Update to new lexer.

2000-07-06  Zack Weinberg  <zack@wolery.cumb.org>

	* tradcpp.c: New file.
	* tradcif.y: New file.
	* tradcif.c: New generated file.

	* Makefile.in: Add rules to build tradcpp.o, tradcif.o,
	$(srcdir)/tradcif.c.  Add tradcpp to STAGESTUFF and
	dependencies of C.  Install tradcpp from install-common, in
	$(libsubdir).

2000-07-06  Zack Weinberg  <zack@wolery.cumb.org>

	* cppinit.c: Include cppdefault.h.  Refer to
	cpp_GCC_INCLUDE_DIR and cpp_GCC_INCLUDE_DIR_len, not directly
	to GCC_INCLUDE_DIR and its length.
	(SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE,
	USER_LABEL_PREFIX, REGISTER_PREFIX, struct default_include,
	STANDARD_INCLUDE_DIR, STANDARD_INCLUDE_COMPONENT):  Move to
	cppdefault.h.
	(include_defaults_array): Move to cppdefault.c.

	* cppdefault.h: New file.
	* cppdefault.c: New file.

	* Makefile.in (LIBCPP_OBJS): Add cppdefault.o.
	(cppinit.o): Don't apply $(PREPROCESSOR_DEFINES) to this file.
	(cppdefault.o): New rule; apply $(PREPROCESSOR_DEFINES) to
	this file.

Thu Jul  6 18:30:36 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* reload.c (push_reload): When seeing if can reuse a register,
	check extra registers against widest of INMODE and OUTMODE.

2000-07-06  Neil Booth  <NeilB@earthling.net>

	* cpplib.c: (_cpp_parse_assertion):  Perform hash lookups
	based on full length of predicate.

2000-07-06  Hans-Peter Nilsson  <hp@axis.com>

	* timevar.c: [HAVE_SYS_RESOURCE_H]: Include <sys/resource.h>.
	[NEED_DECLARATION_GETRUSAGE]: Declare getrusage.

2000-07-05  Kazu Hirata  <kazu@hxi.com>

	* h8300-proto.h: Fix formatting.
	* h8300.c: Likewise.
	* h8300.h: Likewise.

2000-07-05  Jim Wilson  <wilson@cygnus.com>

	* config/ia64/ia64.h (HARD_REGNO_MODE_OK): If FR_REGNO_P, disallow
	CCmode.

2000-07-05  Rodney Brown  <RodneyBrown@pmsc.com>

	* invoke.texi: Fix minor typos
	* md.texi: Fix minor typos

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

	* cpplib.c (_cpp_parse_assertion): Fix buffer overrun.

2000-07-04  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplex.c: Don't include sys/mman.h.
	(cpp_push_buffer, cpp_pop_buffer): Moved to cpplib.c.

	* cpplib.c: Include sys/mman.h and obstack.h.
	(cpp_push_buffer): Moved from cpplex.c; allocate buffers on an
	obstack.
	(cpp_pop_buffer): Moved from cpplex.c; free buffers from an obstack.
	(_cpp_unwind_if_stack): Now static, unwind_if_stack.  Don't
	bother freeing if stack entries (they will be freed with their buffer).
	(do_endif): Free if stack entries from the buffer obstack.
	(push_conditional): Allocate if stack entries from the buffer obstack.

	(find_answer): Rename to _cpp_find_answer.
	(do_assert, do_unassert): Update.

	* cpphash.h: Update prototypes.
	(xobnew): New convenience macro.
	* cpplib.h (struct cpp_reader): Add hash_ob and buffer_ob fields.
	Update comments.
	(struct cpp_hashnode): Remove disabled field.

	* cppinit.c: Don't include hashtab.h or splay-tree.h.
	(report_missing_guard): Moved to cppfiles.c.
	(cpp_reader_init): Call cpp_init_stacks, cpp_init_macros,
	cpp_init_includes.
	(cpp_cleanup): Call cpp_cleanup_stacks, cpp_cleanup_macros,
	cpp_cleanup_includes.  Don't destroy hashtab or
	all_include_files here.
	(cpp_finish): Use _cpp_report_missing_guards.

	* cppfiles.c (report_missing_guard): Moved from cppinit.c.
	(_cpp_init_include_table): Rename _cpp_init_includes.
	(_cpp_cleanup_includes, _cpp_report_missing_guards): New.

	* cppexp.c (parse_assertion): Update for new name of
	find_answer.

	* Makefile.in (cpplib.o, cpphash.o, cppinit.o): Update deps.

2000-07-04  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.c (do_ident): s/VSPACE/EOF/

2000-07-05  Neil Booth  <NeilB@earthling.net>

	* cpplex.c: Fix trigraph replacement within strings.

2000-07-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* rs6000/aix.h (ASM_GENERATE_INTERNAL_LABEL): Fix format specifier.

	* xcoffout.c (assign_type_number): Constify.
	(xcoffout_source_file): Add static prototype.  Don't needlessly
	cast away const-ness.

2000-07-04  Jason Merrill  <jason@redhat.com>

	* frame.h (frame_state): Move base_offset to end.

Mon Jul  3 21:31:43 2000  Clinton Popetz  <cpopetz@cygnus.com>

	* calls.c (emit_library_call_value_1): Revert previous change.

2000-07-03  Zack Weinberg  <zack@wolery.cumb.org>

	* fix-header.c (struct partial_proto): Remove unnecessary fields.
	(recognized_extern, recognized_function, read_scan_file):
	Update for new scheme.
	(check_protection): It's still a multiple include guard even
	if it doesn't always trigger.
	* scan-decls.c (skip_to_closing_brace, scan_decls): Update for
	new scheme.
	* scan.h: Declare struct cpp_token.  Update prototypes.

2000-07-03  Neil Booth  <neilb@earthling.net>
	    Zack Weinberg  <zack@wolery.cumb.org>

	Complete overhaul of the lexer and macro expander.

	* cpphash.c (object_defn, funct_defn, push_macro_expansion,
	arg, arglist, argdata, reflist, collect_objlike_expansion,
	collect_funlike_expansion, collect_params,
	warn_trad_stringify, trad_stringify, duplicate_arg_p, add_pat,
	unsafe_chars, macarg, compare_defs, special_symbol,
	scan_arguments, stringify, funlike_macroexpand,
	_cpp_quote_string, monthnames): Delete.
	(cpp_lookup, _cpp_free_definition, dump_funlike_macro,
	_cpp_create_definition, _cpp_dump_definition,
	dump_hash_helper): Adjust.
	(find_param, count_params, parse_define, var_args_str,
	check_macro_redefinition, save_expansion): New.

	* cpplex.c (skip_block_comment, skip_line_comment, parse_name,
	parse_string, output_line_command, trigraph_replace,
	lex_line, cpp_push_buffer, cpp_pop_buffer, cpp_output_tokens,
	cpp_scan_buffer_nooutput, cpp_scan_buffer, cpp_free_toklist,
	cpp_idcmp, _cpp_get_directive_token, _cpp_init_input_buffer,
	_cpp_skip_rest_of_line): Modify.

	(maybe_macroexpand, skip_comment, copy_comment, skip_string,
	find_position, null_warning, bump_column, expand_name_space,
	pedantic_whitespace, _cpp_output_list, _cpp_slice_toklist,
	_cpp_squeeze_toklist, _cpp_scan_until, _cpp_skip_hspace,
	_cpp_parse_name, _cpp_lex_token, cpp_get_non_space_token,
	_cpp_prescan): Delete.

	(dump_param_spelling, process_directive, lex_next,
	is_macro_disabled, stringify_arg, expand_context_stack,
	output_token, make_string_token, alloc_number_token,
	special_symbol, duplicate_token, maybe_paste_with_next,
	can_paste, prevent_macro_expansion, restore_macro_expansion,
	get_temp_token, release_temp_tokens, quote_string,
	token_names, token_spellings, _cpp_expand_name_space,
	_cpp_glue_header_name, _cpp_reserve_name_space,
	digraph_spellings, trigraph_ok, skip_whitespace, save_comment,
	placemarker_token, eof_token, cpp_context, macro_args,
	get_raw_token, parse_arg, parse_args, save_token,
	push_arg_context, push_macro_context, pop_context,
	do_pop_context, free_macro_args, _cpp_get_line,
	_cpp_run_directive): New.

	* cpplib.c (validate_else, parse_include, push_conditional,
	pass_thru_directive, read_line_number, parse_ifdef,
	detect_if_not_defined, _cpp_check_directive, do_define,
	do_undef, do_include, do_import, do_include_next, do_error,
	do_warning, do_ident, do_pragma, pragma_dispatch, gcc_pragmas,
	top_pragmas, do_pragma_gcc, do_pragma_implementation,
	do_pragma_poison, do_pragma_system_header,
	do_pragma_dependency, do_sccs, do_ifdef, do_ifndef, do_else,
	dl_elif, do_endif, _cpp_unwind_if_stack, do_assert,
	do_unassert, cpp_define, cpp_undef, cpp_assert, cpp_unassert,
	cpp_defined): Update for new scheme.
	(strtoul_for_line, get_define_node, dump_macro_name,
	_cpp_check_linemarker, _cpp_parse_assertion): New.
	(_cpp_handle_directive, do_pragma_default): Delete.

	* cpphash.h (struct predicate): Now struct answer.
	(enum spell_type, struct token_spelling, struct directive,
	directive_handler): New.
	Update prototypes.  Remove unused macros.
	* cpplib.h: Update prototypes.  Remove unused macros,
	structure definitions, and fields.

	* cpperror.c (print_containing_files, v_message): Adjust.
	* cppexp.c (parse_assertion, lex, parse_escape,
	_cpp_parse_expr): Adjust.
	* cppfiles.c (open_include_file, _cpp_execute_include,
	_cpp_compare_file_date, cpp_read_file, read_include_file):
	Adjust.
	* cppinit.c (dump_special_to_buffer): Delete.
	(append_include_chain, merge_include_chains, cpp_reader_init,
	cpp_cleanup, initialize_builtins, builtin_array, cpp_start_read,
	cpp_finish, handle_option, print_help): Adjust.
	* cppmain.c (main): Adjust.

2000-07-03  Zack Weinberg  <zack@wolery.cumb.org>

	* cppspec.c (lang_specific_driver): Use double quotes in error
	message.

Mon Jul  3 16:53:43 2000  Clinton Popetz  <cpopetz@cygnus.com>

	* calls.c (emit_library_call_value_1): Use valreg instead
	of hard_libcall_value.

2000-07-03  Geoff Keating  <geoffk@cygnus.com>

	* config/rs6000/rs6000.c (rs6000_emit_move): New function.
	* config/rs6000/rs6000-proto.h: Prototype rs6000_emit_move.
	* config/rs6000/rs6000.md (movsi): Use rs6000_emit_move.
	(movhi): Likewise.
	(movqi): Likewise.
	(movdf): Likewise.
	(movsf): Likewise.
	(movdi): Likewise.
	(movti): Likewise.

	* expmed.c (expand_mult_highpart): Use op1 instead of wide_op1 when
	mode instead of wider_mode is being used.

2000-07-03  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.md (movstrictqi_xor): Use 'q' constraint instead
	of 'r'. Use q_regs_operand.
	(andsi_1+2): Use q_regs_operand.

2000-07-03  Jakub Jelinek  <jakub@redhat.com>

	* builtins.c (get_memory_rtx): Always put into alias set 0.

2000-07-03  Nick Clifton  <nickc@cygnus.com>

	* config/arm/arm.md: Fix post increment and pre increment
	peepholes so that they do not generate UNPREDICATBLE opcodes.
	(ie ones where the increment clobbers the source/destination).

2000-07-01  Marek Michalkiewicz  <marekm@linux.org.pl>

	* config/avr/avr.c (out_adj_frame_ptr): Make "frame pointer
	change too big for -mtiny-stack" a warning, if larger than 63.
	(out_set_stack_ptr): Change the logic so -mno-interrupts is
	always safe to use on possible future devices.
	(function_prologue): Write SPH before SPL, for consistency.
	If interrupt_func_p true, we know we have enabled interrupts.
	(avr_num_arg_regs): New function.  Round up to even number of
	bytes if no -mpack-args or if calling a libgcc function.
	(function_arg, function_arg_advance): Use it.
	(output_movsisf, ashlsi3_out, ashrsi3_out, lshrsi3_out):
	Output "movw" if available.
	(out_tsthi, out_tstsi, ashlqi3_out, lshrqi3_out): Change uses
	of TEST_HARD_REG_CLASS macro to test_hard_reg_class function.
	(asm_output_section_name): Add blanks for consistent output.
	(encode_section_info): Set TREE_READONLY for progmem data to
	avoid gas warnings about changed section attributes.
	(avr_hard_regno_mode_ok): Force non-QImode data to start in
	even numbered registers on devices with "movw".
	* config/avr/avr.h (MASK_*): Define bits for target_flags.
	(TARGET_SWITCHES): Mark help strings for translation.
	Add new -mpack-args and -menhanced switches.
	(TARGET_OPTIONS): Mark help strings for translation.
	(progmem_section): Add section attributes.
	* config/avr/avr.md (*movhi, call_insn, call_value_insn):
	Output "movw" if available.
	(mulqi3, mulqihi3, umulqihi3, mulhi3, *tablejump_enh):
	New patterns.
	* config/avr/libgcc.S (_mulqi3, _divqi3): Update to the new
	call convention (arguments aligned on even registers).
	(_cleanup, _exit): Make weak symbols libc can override.

2000-07-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* fp-bit.h: New file.

	* fp-bit.c: Move common code, prototypes, etc into fp-bit.h.
	Comment #endif statements.
	(__thenan_sf, __thenan_df): Add missing braces around initializer.

Mon Jul  3 00:32:47 2000  Jeffrey A Law  (law@cygnus.com)

	* gcse.c (compute_pre_data): Compute ae_kill using other local
	properties instead of calling compute_ae_kill.

	* alias.c (init_alias_analysis): Do not call
	prologue_epilogue_contains until after reload has completed.

2000-07-02  Benjamin Chelf  <chelf@codesourcery.com>

	* c-common.h (genrtl_begin_compound_stmt): Remove declaration.
	(genrtl_finish_compound_stmt): Likewise.
	(genrtl_compound_stmt): Change to return void.

	* c-semantics.c (genrtl_begin_compound_stmt): Remove function and
	move code from here to ...
	(genrtl_compound_stmt): ... here.
	(genrtl_finish_compound_stmt): Remove.
	(expand_stmt): Add comment.

2000-07-02  Zack Weinberg  <zack@wolery.cumb.org>

	* c-typeck.c (build_indirect_ref): Use COMPLETE_OR_VOID_TYPE_P
	and VOID_TYPE_P.

2000-07-02  Jakub Jelinek  <jakub@redhat.com>

	* cpplib.h (struct cpp_reader): New field include_depth.
	(struct cpp_printer): Rename last_bsd to last_id.
	* cppfiles.c (read_include_file): Bump include_depth.
	* cpplex.c (cpp_pop_buffer): Decrement include_depth.
	(output_line_command): Output correct #line if a header
	is including itself and is not protected against multiple inclusion.
	Use include_depth instead of buffer_stack_depth, last_id instead of
	last_bsd.
	* cppinit.c (cpp_start_read): Initialize last_id instead of
	last_bsd.

2000-07-01  Benjamin Chelf  <chelf@codesourcery.com>

	* Makefile.in (C_AND_OBJC_OBJS): Added c-semantics.o.
	(c-semantics.o): New target.

	* c-common.h (TREE_LANG_FLAG_?): Added documentation.
	(genrtl_do_pushlevel): Moved from cp/cp-tree.h.
	(genrtl_clear_out_block): Likewise.
	(genrtl_goto_stmt): Likewise.
	(genrtl_expr_stmt): Likewise.
	(genrtl_decl_stmt): Likewise.
	(genrtl_if_stmt): Likewise.
	(genrtl_while_stmt): Likewise.
	(genrtl_do_stmt): Likewise.
	(genrtl_return_stmt): Likewise.
	(genrtl_for_stmt): Likewise.
	(genrtl_break_stmt): Likewise.
	(genrtl_continue_stmt): Likewise.
	(genrtl_scope_stmt): Likewise.
	(genrtl_switch_stmt): Likewise.
	(genrtl_case_label): Likewise.
	(genrtl_begin_compound_stmt): Likewise.
	(gerntl_finish_compound_stmt): Likewise.
	(genrtl_compound_stmt): Likewise.
	(genrtl_asm_stmt): Likewise.
	(genrtl_decl_cleanup): Likewise.
	(DECL_ANON_UNION_ELEMS): Likewise.
	(emit_local_var): Likewise.
	(make_rtl_for_local_static): Likewise.
	(expand_cond): Likewise.
	(expand_stmt): Likewise.
	(c_expand_return): Likewise.
	(c_expand_start_case): Likewise.
	(do_case): Likewise.
	(COMPOUND_STMT_NO_SCOPE): Likewise.
	(c_expand_asm_operands): Likewise.
	(NEW_FOR_SCOPE_P): New macro.
	(expand_expr_stmt_fn): New type.

	(set_current_function_name_declared): Likewise.
	(current_function_name_declared): Likewise.
	(lang_expand_stmt): Likewise.
	(stmts_are_full_exprs_p): Likewise.
	(anon_aggr_type_p): Likewise.
	(lang_expand_expr_stmt): Likewise.
	(build_case_label): Likewise.

	* c-decl.c (lang_expand_expr_stmt): Initialize.
	(stmts_are_full_exprs_p): Define.
	(current_function_name_declared): Likewise.
	(do_case): Likewise.
	(lang_expand_stmt): Likewise.
	(set_current_function_name_declared): Likewise.
	(anon_aggr_type_p): Likewise.

	* c-semantics.c: New file.
	(expand_cond): Moved from cp/semantics.c.
	(genrtl_do_pushlevel): Likewise.
	(genrtl_clear_out_block): Likewise.
	(genrtl_goto_stmt): Likewise.
	(genrtl_expr_stmt): Likewise.
	(genrtl_decl_stmt): Likewise.
	(genrtl_if_stmt): Likewise.
	(genrtl_while_stmt): Likewise.
	(genrtl_do_stmt): Likewise.
	(genrtl_return_stmt): Likewise.
	(genrtl_for_stmt): Likewise.
	(genrtl_break_stmt): Likewise.
	(genrtl_continue_stmt): Likewise.
	(genrtl_scope_stmt): Likewise.
	(genrtl_switch_stmt): Likewise.
	(genrtl_case_label): Likewise.
	(genrtl_begin_compound_stmt): Likewise.
	(genrtl_finish_compound_stmt): Likewise.
	(genrtl_compound_stmt): Likewise.
	(genrtl_asm_stmt): Likewise.
	(genrtl_decl_cleanup): Likewise.
	(make_rtl_for_local_static): Moved from cp/decl.c.
	(emit_local_var): Likewise.
	(expand_stmt): Define.

	* c-tree.h: (c_expand_asm_operands): Moved to c-common.h.
	(c_expand_return): Likewise.
	(c_expand_start_case): Likewise.

2000-07-01  Richard Henderson  <rth@cygnus.com>

	* config/ia64/ia64.c (symbolic_operand): Reject CONST expressions
	with the low 13 bits set.
	(move_operand): Check for CONST|SYMBOL_REF|LABEL_REF directly.
	* config/ia64/ia64.md (movdi): Likewise.  Expand a CONST with one
	of the low 13 bits into a CONST plus an adddi3.
	(load_symptr): Set RTX_UNCHANGING_P.

See ChangeLog.3 for earlier changes.