2006-04-22  Kazu Hirata  <kazu@codesourcery.com>

	Revert:
	* config/soft-fp/op-common.h: Fix a typo.

2006-04-22  Frank Ch. Eigler  <fche@redhat.com>

	PR libmudflap/26864
	* common.opt (flag_mudflap_threads): Overload flag_mudflap.
	* tree-mudflap.c (flag_mudflap_threads): Derive from flag_mudflap.

2006-04-22  Kazu Hirata  <kazu@codesourcery.com>

	* config/soft-fp/op-common.h, double-int.h, tree-ssa-dom.c:
	Fix comment typos.
	* doc/tm.texi: Fix a typo.

2006-04-21  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (struct die_struct): Document that die_sib makes
	a circular linked list.
	(FOR_EACH_CHILD): New.
	(reverse_die_lists): Delete.
	(reverse_all_dies): Delete.
	(add_dwarf_attr): Correct documentation.
	(remove_child_with_prev): New.
	(remove_child_TAG): Update for change to die_struct, use
	remove_child_with_prev.
	(add_child_die): Update for change to die_struct.
	(splice_child_die): Use remove_child_with_prev and add_child_die.
	(print_die): Use FOR_EACH_CHILD.
	(die_checksum): Likewise.
	(assign_symbol_names): Likewise.
	(output_location_lists): Likewise.
	(build_abbrev_table): Likewise.
	(calc_die_sizes): Likewise.
	(mark_dies): Likewise.
	(unmark_dies): Likewise.
	(unmark_all_dies): Likewise.
	(output_die): Likewise.
	(prune_unused_types_mark): Likewise.
	(prune_unused_types_walk): Likewise.
	(same_die_p): Update for change to die_struct.
	(break_out_includes): Likewise.
	(prune_unused_types_prune): Likewise.
	(add_sibling_attributes): Use FOR_EACH_CHILD, simplify logic.
	(prune_unmark_dies): Use FOR_EACH_CHILD, don't clear die_mark if
	it's already clear.
	(dwarf2out_finish): Don't call reverse_all_dies.

2006-04-21  Eric Christopher  <echristo@apple.com>

	* df-core.c, tree-outof-ssa.c, config/i386/i386.c: Fix typos
	in comments and function names.

2006-04-21  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR c/25875
	* c-typeck.c (digest_init): Robustify.

	* c-typeck.c (pop_init_level): Simplify.

2006-04-21  Steve Ellcey  <sje@cup.hp.com>

	* config/pa/t-pa64: Add dependencies on $(GCC_PASSES).

2006-04-21  Paul Brook  <paul@codesourcery.com>

	* config/arm/arm.c (arm_override_options): Error on iWMMXt and
	hardware floating point.

2006-04-21  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.h (REG_CLASS_CONTENTS): Add sfp to
	NON_FLOAT_REGS.

2006-04-21  Nick Clifton  <nickc@redhat.com>

	* config/sh/t-elf (EXTRA_MULTILIB_PARTS): Include
	OPT_EXTRA_PARTS.

2006-04-21  Alan Modra  <amodra@bigpond.net.au>

	PR target/27230
	* config/rs6000/rs6000.c (rs6000_output_function_epilogue): Use
	C++ lang type in traceback table for Objective-C++.

	* config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Update comment.

2006-04-20  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (asm_preferred_eh_data_format): Reformat.

2006-04-20  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR mudflap/26789
	* tree-mudflap.c (mudflap_finish_file): Skip function when there
	were errors.  Remove check for erroneous objects.

2006-04-20  Jeff Law  <law@redhat.com>

	PR tree-optimization/26854
	* tree-ssa-dse.c (dse_optimize_stmt): Avoid num_imm_uses when
	checking for zero or one use.
	* tree-ssa-dom.c (propagate_rhs_into_lhs): Similarly.
	* tree-cfgcleanup.c (merge_phi_nodes): Similarly.
	* tree-ssa-reassoc.c (negate_value): Similarly.
	(reassociate_bb): Similarly.

2006-04-20  Jakub Jelinek  <jakub@redhat.com>

	* c-pretty-print.c (pp_c_direct_abstract_declarator): Print
	TYPE_MAX_VALUE (TYPE_DOMAIN (t)) + 1 for ARRAY_TYPE rather
	than plain TYPE_MAX_VALUE (TYPE_DOMAIN (t)).

2006-04-20  Alan Modra  <amodra@bigpond.net.au>

	* config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Consume all
	fp regs if the last fp arg doesn't fit in regs.

2006-04-20  Kaz Kojima  <kkojima@gcc.gnu.org>

	PR target/27182
	* config/sh/sh.md (movsicc_true+3): Tweak condition for the case
	that the last insn has the REG_INC note.

2006-04-19  Carlos O'Donell  <carlos@codesourcery.com>
	    Nathan Sidwell  <nathan@codesourcery.com>

	PR c/26774
	* stor-layout.c (update_alignment_for_field): Do not align
	ERROR_MARK nodes.
	(place_union_field): Place union field at the start of the union.
	(place_field): Move ERROR_MARK check later, and use the current
	allocation position to maintain monotonicity.

2006-04-19  Zdenek Dvorak <dvorakz@suse.cz>

	* dominance.c: Include timevar.h.
	(calculate_dominance_info): Use TV_DOMINANCE.
	* timevar.def (TV_DOMINANCE): New timevar.
	* Makefile.in (dominance.o): Add TIMEVAR_H dependency.

2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>

	PR rtl-optimization/14261
	* ifcvt.c (noce_emit_move_insn): Call store_bit_field if the resulting
	move would be an INSV insn.
	(noce_process_if_block): Don't optimize if the destination is a
	ZERO_EXTRACT which can't be handled by noce_emit_move_insn.

2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.md: Add comments with the instructions emitted
	by an insn pattern if macros are used.

2006-04-19  Alan Modra  <amodra@bigpond.net.au>

	PR rtl-optimization/26026
	* fold-const.c (fold_binary): Optimize div and mod where the divisor
	is a known power of two shifted left a variable amount.

2006-04-18  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (prune_unused_types_update_strings): Don't add strings
	to hash table twice when the debug_str section has SECTION_MERGE.

2006-04-18  Joseph S. Myers  <joseph@codesourcery.com>

	* config/soft-fp: New directory.  From glibc.
	* config/soft-fp/t-softfp: New.
	* config/soft-fp/README: New.
	* mklibgcc.in: Handle LIB2FUNCS_EXCLUDE.
	* Makefile.in (LIB2FUNCS_EXCLUDE, SFP_MACHINE): New.
	(libgcc.mk): Pass LIB2FUNCS_EXCLUDE.
	(LIBGCC_DEPS): Add $(SFP_MACHINE).
	* config.gcc: Use rs6000/t-fprules-fpbit or
	rs6000/t-fprules-softfp and soft-fp/t-softfp together with
	rs6000/t-fprules.
	* config/rs6000/sfp-machine.h: New.  Based on glibc.
	* config/rs6000/t-fprules-fpbit, config/rs6000/t-fprules-softfp:
	New.
	* config/rs6000/t-fprules: Remove fp-bit rules.
	* config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Use +=.
	* config/rs6000/t-linux64: Likewise.  Remove duplicates from
	LIB2FUNCS_EXTRA.  Remove fp-bit rules.
	(softfp_wrap_start, softfp_wrap_end): New.

2006-04-18  DJ Delorie  <dj@redhat.com>

	* config/m32c/m32c.h (PTRDIFF_TYPE): Define.

2006-04-18  Devang Patel  <dpatel@apple.com>

	* doc/invoke.texi (-Wuninitialized): Clarify -O connection.

2006-04-18  Nick Clifton  <nickc@redhat.com>

	* config/sh/t-symbian: Add rule to build sh-c.o
	* config/sh/symbian.c (sh_symbian_mark_dllexport): Replace use
	of DECL_NON_ADDR_CONST_P with DECL_DLLIMPORT_P.
	(sh_symbian_encode_section_info): Likewise.

2006-04-18  Andreas Krebbel  <krebbel1@de.ibm.com>

	* builtins.c (expand_builtin_strcmp): Cover label definition of
	do_libcall with HAVE_cmpstrnsi.

2006-04-18  Kazu Hirata  <kazu@codesourcery.com>

	* function.c (temp_slots_at_level, max_slot_level): Use VEC
	instead of VARRAY.
	* function.h (temp_slot_p): New.
	(function): Change the type of x_used_temp_slots to
	VEC(temp_slot_p,gc) *.

2006-04-18  Nick Clifton  <nickc@redhat.com>

	* config/mmix/mmix.h (OPTIMIZATION_OPTIONS): Remove reference to
	flag_strength_reduce.

	* doc/tm.texi (TARGET_SECTION_TYPE_FLAGS): Fix typo.

2006-04-18  Paolo Bonzini  <bonzini@gnu.org>

        PR target/27117

	Partial revert of revision 112637
	2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
		    Dale Johannesen  <dalej@apple.com>

	PR target/19653
	* regclass.c (struct reg_pref): Update documentation.
	(regclass): Set prefclass to NO_REGS if memory is the best option.
	(record_reg_classes): Cope with a prefclass set to NO_REGS.

2006-04-18  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/26821
        * tree-ssa-math-opts.c (get_constant_one): New.
        (insert_reciprocals): Use it.

2006-04-17  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (free_AT): Delete.
	(remove_AT): Update string ref counts.
	(remove_child_TAG): Don't call free_die.
	(free_die): Delete.
	(break_out_includes): Don't call free_die on DW_TAG_GNU_BINCL
	or DW_TAG_GNU_EINCL.
	(prune_unused_types_walk_attribs): Reset string refcounts.
	(prune_unused_types_update_strings): New.
	(prune_unused_types_prune): Don't make unnecessary stores.  Don't
	call free_die.  Do call prune_unused_types_update_strings.
	(prune_unused_types): Empty debug_str_hash.

2006-04-17  Roger Sayle  <roger@eyesopen.com>

	* expr.c (expand_assignment): Optimize away no-op moves where the
	source and destination are equal and have no side-effects.

2006-04-17  Richard Guenther  <rguenther@suse.de>

	PR target/26826
	* reload.c (push_reload): Guard calls to get_secondary_mem
	for memory subregs.

2006-04-16  Kazu Hirata  <kazu@codesourcery.com>

	* alias.c (reg_base_value, old_reg_base_value): Change the
	type to VEC(rtx,gc) *.
	(REG_BASE_VALUE, find_base_value, record_set,
	init_alias_analysis): Use VEC instead of VARRAY.

	* alias.c (alias_sets): Change the type to
	VEC(alias_set_entry,gc) *.
	(get_alias_set_entry, new_alias_set, record_alias_subset): Use
	VEC instead of VARRAY.
	(last_alias_set): Remove.

	* cgraph.h (cgraph_edge_p): New.
	Update the prototype of cgraph_function_versioning.
	* cgraphunit.c (cgraph_copy_node_for_versioning,
	cgraph_function_versioning): Use VEC instead of VARRAY.
	* ipa-cp.c (ipcp_insert_stage): Likewise.

2006-04-16  Roger Sayle  <roger@eyesopen.com>

	PR target/26961
	* fold-const.c (fold_ternary): When converting "A ? B : C" into either
	"A op B" or "A op C", we may need to convert A to the type of B and C.

2006-04-16  Adam Nemet  <anemet@caviumnetworks.com>

	* target.h (struct gcc_target): Add mode_rep_extended.
	* rtlanal.c (num_sign_bit_copies_in_rep): New global.
	(init_num_sign_bit_copies_in_rep): Initialize it using
	mode_rep_extended.
	(truncate_to_mode): Use it.
	(init_rtlanal): Call init_num_sign_bit_copies_in_rep.
	* targhooks.h (default_mode_rep_extended): Declare it.
	* targhooks.c (default_mode_rep_extended): Define it.
	* target-def.h (TARGET_MODE_REP_EXTENDED): New macro.  Default to
	default_mode_rep_extended.
	(TARGET_INITIALIZER): Include it.
	* doc/tm.texi (Misc): Document it.
	* config/mips/mips.c (TARGET_TRUNCATED_TO_MODE): Override it.
	(mips_truncated_to_mode): New function.

2006-04-16  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/25474
	* expr.c (compress_float_constant): Copy the narrow constant into
	a new pseudo before extending it to its final width.

2006-04-16  Roger Sayle  <roger@eyesopen.com>
	    Andrew Pinski  <pinskia@gcc.gnu.org>
	    Dale Johannesen  <dalej@apple.com>

	PR target/24076
	* config/i386/i386.c (ix86_expand_vector_init_duplicate): Add
	special case code to implement V8HImode and V16QImode with SSE2.

2006-04-15  Roger Sayle  <roger@eyesopen.com>

	* config/i386/i386.c (ix86_va_start): Ensure all integer constant
	trees are constructed with a suitable tree type.

2006-04-15  Roger Sayle  <roger@eyesopen.com>

	* tree.c (integer_zerop): Ignore TREE_CONSTANT_OVERFLOW.
	(integer_onep): Likewise.
	(integer_all_onesp): Likewise.
	(integer_pow2p): Likewise.
	(integer_nonzerop): Likewise.
	(real_zerop): Likewise.
	(real_onep): Likewise.
	(real_twop): Likewise.
	(real_minus_onep): Likewise.
	(int_size_in_bytes): Likewise.
	(host_integerp): Likewise.

2006-04-15  Kazu Hirata  <kazu@codesourcery.com>

	* cfgcleanup.c, config/dfp-bit.c, expr.c, fold-const.c,
	jump.c, mips-tfile.c, omp-low.c, sched-int.h,
	tree-ssa-loop-prefetch.c, tree-vrp.c: Fix comment typos.

	* tree-ssa-structalias.h (alias_info): Remove num_references.

2006-04-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa.md (output_bb patterns): Shorten long branch alternatives by 4.
	(output_bvb patterns): Likewise.
	* pa.c (output_bb): Use 'bb' insn for long branch case.
	(output_bvb): Likewise use '{bvb|bb}' for long branch case.
	(output_dbra): Use '{comb|cmpb}' for long branch case for alternative
	1.  Correct length operand for alternatives 1 and 2.
	(output_movb): Use '{comb|cmpb}' for long branch case for alternatives
	1, 2 and 3.  Correct length operand for alternatives 1, 2 and 3.

2006-04-14  Roger Sayle  <roger@eyesopen.com>

	* tree-cfg.c (make_edges, make_omp_sections_edges, move_stmt_r,
	is_ctrl_altering_stmt): Reinstate RTH's changes from r112935 that
	were accidentally reverted by r112959.

2006-04-15  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/26823
	* except.h (eh_region_outermost): New prototype.
	* except.c (eh_region_outermost): New function.
	* tree-cfg.c (find_outermost_region_in_block): Use it.

2006-04-14  Kazu Hirata  <kazu@codesourcery.com>

	* local-alloc.c (rest_of_handle_local_alloc): Use VEC instead
	of VARRAY.
	* reload1.c (reg_equiv_memory_loc_varray): Rename to
	reg_equiv_memory_loc_vec.  Change the type to VEC(rtx,gc) *.
	(init_reload, reload): Use VEC instead of VARRAY.
	* reload.h: Update the prototype for
	reg_equiv_memory_loc_varray.

2006-04-14  Alexey Starovoytov  <alexey.starovoytov@sun.com>
            Eric Botcazou  <ebotcazou@libertysurf.fr>

	* config/sparc/sparc.c (emit_and_preserve): Allocate space for the
	register save area.

2005-04-13  Uros Bizjak  <uros@kss-loka.si>

	PR middle-end/27134
	* builtins.c (expand_builtin_int_roundingfn): Use expand_normal()
	to expand fallback builtin function call.

2006-04-14  Alan Modra  <amodra@bigpond.net.au>

	PR middle-end/27095
	* builtins.c: (expand_builtin_memset): Stabilize args before expansion
	and emit libcall here in case the builtin fails.
	(expand_builtin_strcmp): Always emit the libcall here on failure.

2006-04-14  Kazu Hirata  <kazu@codesourcery.com>

	* basic-block.h (REG_BASIC_BLOCK): Use VEC instead of VARRAY.
	* flow.c (reg_n_info): Change the type to
	VEC(reg_info_p,heap) *.
	* regclass.c (allocate_reg_info, free_reg_info): Use VEC
	instead of VARRAY.
	* regs.h (reg_info_p): New.
	(REG_N_REFS, REG_FREQ, REG_N_SETS, REG_N_DEATHS,
	REG_N_CALLS_CROSSED, REG_N_THROWING_CALLS_CROSSED,
	REG_LIVE_LENGTH, REGNO_FIRST_UID, REGNO_LAST_UID): Use VEC
	instead of VARRAY.

2006-04-13  Eric Botcazou  <ebotcazou@adacore.com>

	* params.def (PARAM_MAX_SCHED_READY_INSNS): New parameter,
	defaulting to 100.
	* params.h (MAX_SCHED_READY_INSNS): New macro.
	* haifa-sched.c: (queue_to_ready): Re-queue insns for the next cycle
	past MAX_SCHED_READY_INSNS during the first scheduling pass.
	(schedule_block): Delay insns past MAX_SCHED_READY_INSNS in
	the ready list for 1 cycle during the first scheduling pass.
	* doc/invoke.texi (--param): New parameter max-sched-ready-insns.

2006-04-13  Richard Henderson  <rth@redhat.com>

	PR libgomp/26651
	* gimple-low.c (lower_omp_directive): Remove dead code.
	(lower_stmt): Do nothing except for openmp, except for OMP_PARALLEL.
	* gimplify.c (gimplify_expr): Update for OMP_RETURN, OMP_CONTINUE.
	* omp-low.c (struct omp_region): Move to tree-flow.h.
	(root_omp_region): Export.
	(omp_regions, lookup_omp_region): Remove.
	(determine_parallel_type): Update for struct omp_region changes.
	(dump_omp_region): Dump regions with block numbers.
	(new_omp_region): Take type and block instead of stmt; malloc
	instead of ggc.
	(free_omp_region_1, free_omp_regions): New.
	(expand_parallel_call): Take entry_stmt as argument; update for
	changes to omp_region.
	(remove_exit_barrier): Rewrite to update OMP_RETURN_NOWAIT.
	(remove_exit_barriers): New.
	(expand_omp_parallel): Update for struct omp_region changes.
	(expand_omp_synch): Likewise.
	(expand_omp): Likewise.
	(expand_omp_for_static_nochunk): Likewise; update for OMP_CONTINUE.
	(expand_omp_for_static_chunk): Likewise.
	(expand_omp_for): Likewise.
	(expand_omp_for_generic): Likewise; emit the proper GOMP_loop_end call.
	(expand_omp_sections): Similarly, with GOMP_sections_end.
	(expand_omp_single): New.
	(build_omp_regions_1): Update for OMP_CONTINUE.
	(execute_expand_omp): Call remove_exit_barriers, free_omp_regions.
	(lower_omp_sections): Expand with OMP_CONTINUE, do not collect
	OMP_SECTIONS_SECTIONS.
	(lower_omp_single_simple): Don't emit barrier here.
	(lower_omp_single_copy): Likewise.
	(lower_omp_single): Fix bindings, and lower to straightline now.
	(lower_omp_master, lower_omp_ordered): Likewise.
	(lower_omp_critical): Likewise.
	(lower_omp_for): Likewise.  Emit OMP_CONTINUE.
	* tree-cfg.c (make_edges): Collect an omp_region tree, use it for
	omp edges, free it afterward.
	(make_omp_sections_edges): Remove.
	(is_ctrl_altering_stmt): Don't bother checking flag_openmp.
	(move_stmt_r): Handle OMP_CONTINUE.
	* tree-flow.h (struct omp_region): Move from omp-low.c.  Switch
	statement pointers to basic blocks.  Add type member.
	(root_omp_region, new_omp_region, free_omp_regions): Declare.
	* tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN, OMP_CONTINUE.
	* tree-inline.c (estimate_num_insns_1): Likewise.
	* tree-pretty-print.c (dump_generic_node): Likewise.
	* tree-ssa-operands.c (get_expr_operands): Likewise.
	* tree.def (OMP_SECTIONS): Remove OMP_SECTIONS_SECTIONS operand.
	(OMP_RETURN): Rename from OMP_RETURN_EXPR.
	(OMP_CONTINUE): New.
	* tree.h (OMP_DIRECTIVE_P): Add OMP_CONTINUE.
	(OMP_SECTIONS_SECTIONS): Remove.
	(OMP_SECTION_LAST): New.
	(OMP_RETURN_NOWAIT): New.

2006-04-13  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (native_encode_vector, native_interpret_real):
	Correct obvious mistakes in the previous check-in.

2006-04-13  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (native_encode_expr): New function to encode
	the target representation of an INTEGER_CST, REAL_CST, COMPLEX_CST
	or VECTOR_CST into a specified buffer.
	(native_encode_int): New function.
	(native_encode_real): New function.
	(native_encode_complex): New function.
	(native_encode_vector): New function.
	(native_interpret_expr): Inverse of native_encode_expr to convert
	a target representation into an INTEGER_CST, REAL_CST etc...
	(native_interpret_int): New function.
	(native_interpret_real): New function.
	(native_interpret_complex): New function.
	(native_interpret_vector): New function.
	(fold_view_convert_expr): New function to constant fold/evaluate
	a VIEW_CONVERT_EXPR of a suitable constant expression.
	(fold_unary) <VIEW_CONVERT_EXPR>: Call fold_view_convert_expr.
	Change call of build1 to fold_build1 when constructing a
	VIEW_CONVERT_EXPR.

2006-04-13  Paolo Bonzini  <bonzini@gnu.org>
	    Ulrich Weigand  <uweigand@de.ibm.com>

	PR target/27006
	* config/rs6000/rs6000.h (EASY_VECTOR_15_ADD_SELF): Require n
	to be even.

2006-04-13  Alan Modra  <amodra@bigpond.net.au>

	PR target/26459
	* config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Don't
	optimize to lo_sum for DFmode if !TARGET_FPRS.

2006-04-12  Kazu Hirata  <kazu@codesourcery.com>

	* tree-ssa-alias.c (set_initial_properties, init_alias_info,
	delete_alias_info, compute_flow_sensitive_aliasing,
	group_aliases): Use VEC instead of VARRAY.
	* tree-ssa-structalias.c (update_alias_info): Likewise.
	* tree-ssa-structalias.h (alias_info): Change the type of
	processed_ptrs to VEC(tree,heap) *.

2006-04-12  J"orn Rennecke <joern.rennecke@st.com>

	PR target/27060
        * config/sh/lib1funcs.h: New file, broken out of:
        * config/sh/lib1funcs.asm.
        * config/sh/lib1funcs.h (DR00, DR01, DR20, DR21, DR40, DR41):
	New macros.
	* config/sh/lib1funcs.asm (udivsi3_i4): Use them.
        * config/sh/lib1funcs-Os-4-200.asm: New file.
	* config/sh/embed-elf.h (LIBGCC_SPEC): Use -lgcc-Os-4-200.
	* config/sh/t-sh (OPT_EXTRA_PARTS): New variable.
	(EXTRA_MULTILIB_PARTS): Include it.
	($(T)sdivsi3_i4i-Os-4-200.o): New rule.
	($(T)udivsi3_i4i-Os-4-200.o, $(T)libgcc-Os-4-200.a): Likewise.
	* config/sh/t-superh (EXTRA_MULTILIB_PARTS): Include OPT_EXTRA_PARTS.
	* config/sh/sh.h (OVERRIDE_OPTIONS): Recognize -mdiv=call-table for
	TARGET_SH2.

2006-04-12  Kazu Hirata  <kazu@codesourcery.com>

	* Makefile.in (TREE_SSA_LIVE_H): Add vecprim.h.
	* tree-ssa-live.c (tpa_init, tpa_remove_partition, tpa_delete,
	tpa_compact, root_var_init, type_var_init): Use VEC instead of
	VARRAY.
	* tree-ssa-live.h: Include vecprim.h.
	(tree_partition_associator_d): Change the type of
	first_partition to VEC(int,heap) *.
	(tpa_first_partition): Use VEC instead of VARRAY.

	* Makefile.in (GTFILES): Move functions.h after tree.h.
	* function.c (reset_block_changes, record_block_change,
	check_block_change, free_block_changes): Use VEC instead of
	VARRAY.
	* function.h (function): Change the type of
	ib_boundaries_block to VEC(tree,gc) *.
	* tree-inline.c (copy_cfg_body): Initialize
	ib_boundaries_block to NULL instead of (varray_type) 0.

2006-04-12  Roger Sayle  <roger@eyesopen.com>

	* expr.c (emit_group_store): Correct operand order in call to
	subreg_lowpart_offset.  Always create paradoxical SUBREGs with
	a SUBREG_BYTE of zero.

2006-04-12  Richard Guenther  <rguenther@suse.de>

	* profile.c (compute_branch_probabilities): Remove code
	encapsulated in !ir_type (), which are remanents of the
	removed RTL profiling code.
	* rtl-profile.c: Remove.

2006-04-12  Alan Modra  <amodra@bigpond.net.au>

	* config/rs6000/rs6000.c (rs6000_mixed_function_arg): Update
	magic NULL_RTX comment.
	(function_arg): Store entire fp arg to mem if any part should go
	on stack.
	(rs6000_arg_partial_bytes): Adjust for above change.

2006-04-11  Roger Sayle  <roger@eyesopen.com>

	* dwarf2out.c (output_call_frame_info): Create debug_frame_section
	if it hasn't been initialized by dwarf2out_init.

2006-04-11  John David Anglin  <dava.anglin@nrc-cnrc.gc.ca>

	* pa.md (MAX_12BIT_OFFSET, MAX_17BIT_OFFSET): Define and use new
	symbolic constants in branch patterns.

2006-04-11  Roger Sayle  <roger@eyesopen.com>

	* caller-save.c: #include "addresses.h" after #include "tm_p.h".

2006-04-11  Richard Sandiford  <richard@codesourcery.com>

	PR rtl-optimization/27073
	* gcse.c (try_replace_reg): Revert last change.  Continue to search
	for both REG_EQUAL and REG_EQUIV notes, but only perform replacements
	on the former.

2006-04-11  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* config/sparc/sparc.c (function_arg_slotno) <BLKmode>: Handle
	aggregate types other than record and union types.
	(function_arg): Likewise.
	(function_arg_pass_by_reference): In 64-bit mode, return 0 for
	small arrays.
	(function_value): In 64-bit mode, return objects that require it
	in FP registers.

2006-04-11  Roger Sayle  <roger@eyesopen.com>

	* dwarf2out.c (premark_used_types): Remove problematic prototype.

2006-04-11  Jakub Jelinek  <jakub@redhat.com>

	* gcc.c (LINK_COMMAND_SPEC): Move link_gomp after %o.

2006-04-03  Jeff Law  <law@redhat.com>

	PR/27087
	* tree-ssa-copy.c (may_propagate_copy): Test flow sensitive
	alias information too.

2006-04-10  Mike Frysinger  <vapier@gentoo.org>

	* gcc/Makefile.in (gcc-cross): Add $(exeext) to target name.

2006-04-10  Aldy Hernandez  <aldyh@redhat.com>

	PR/21391
	* dwarf2out.c (struct die_struct): Add die_perennial_p field.
	(premark_used_types_helper): New.
	(premark_used_types): New.
	(gen_subprogram_die): Call premark_used_types.
	(prune_unused_types_walk): Do not prune perennial dies.
	* function.c (used_types_insert): New.
	* function.h (struct function): Add used_types_hash field.
	(used_types_insert): Add prototype.
	* Makefile.in (FUNCTION_H): Depend on HASHTAB_H.
	* c-parser.c (c_parser_cast_expression): Save casted types in used
	types hash table.

2006-04-11  Mark Mitchell  <mark@codesourcery.com>

	PR target/26459
	* config/rs6000/e500-double.h (SUB3TARGET_OVERRIDE_OPTIONS): Test
	rs6000_explicit_options.float_gprs.

2006-04-10  Roger Sayle  <roger@eyesopen.com>

	* config/i386/i386.c (ix86_expand_vector_init_one_nonzero): Renamed
	from ix86_expand_vector_init_low_nonzero.  Take an additional
	one_var argument indicating which element is non-zero.  Support
	one_var != 0 for V4SFmode and V4SImode by permuting the result.
	(ix86_expand_vector_init): Call ix86_expand_vector_init_one_nonzero
	with one_var instead of ix86_expand_vector_init_low_nonzero.

2006-04-10  Kazu Hirata  <kazu@codesourcery.com>

	* Makefile.in (tree-into-ssa.o, tree-outof-ssa.o,
	tree-ssa-live.o, tree-ssa-alias.o, function.o, df-problems.o,
	global.o, cfglayout.o, lambda-code.o, reg-stack.o,
	build/genextract.o): Depend on vecprim.h.
	* cfglayout.c, df-problems.c, function.c, genextract.c,
	global.c, lambda-code.c, reg-stack.c, tree-into-ssa.c,
	tree-outof-ssa.c, tree-ssa-alias.c, tree-ssa-live.c: Include
	vecprim.h.
	* vecprim.h: New.

2006-04-10  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (struct dw_attr_struct): Remove dw_attr_next.
	Declare VECs of this type.
	(struct die_struct): Make field die_attr a VEC of dw_attr_struct.
	(remove_children): Delete.
	(add_dwarf_attr): Use VEC routines.
	(add_AT_flag): Update for changes to add_dwarf_attr.
	(add_AT_int): Likewise.
	(add_AT_unsigned): Likewise.
	(add_AT_long_long): Likewise.
	(add_AT_vec): Likewise.
	(add_AT_string): Likewise.
	(add_AT_die_ref): Likewise.
	(add_AT_fde_ref): Likewise.
	(add_AT_loc): Likewise.
	(add_AT_loc_list): Likewise.
	(add_AT_addr): Likewise.
	(add_AT_lbl_id): Likewise.
	(add_AT_lineptr): Likewise.
	(add_AT_macptr): Likewise.
	(add_AT_offset): Likewise.
	(add_AT_range_list): Likewise.
	(get_AT): Use VEC_iterate.
	(remove_AT): Use VEC_ordered_remove.
	(free_die): Fold remove_children into here; have it use VEC_iterate.
	(print_die): Use VEC_iterate on attrs.
	(reverse_die_lists): Don't reverse attr lists.
	(die_checksum): Use VEC_iterate on attrs.
	(same_die_p): Likewise.
	(output_location_lists): Likewise.
	(build_abbrev_table): Likewise.
	(size_of_die): Likewise.
	(unmark_all_dies): Likewise.
	(output_abbrev_section): Likewise.
	(output_die): Likewise.
	(prune_unused_types_walk_attribs): Likewise.

2006-04-10  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* doc/install.texi (*-*-solaris2*): Point to the configure page.

2006-04-10  Jakub Jelinek  <jakub@redhat.com>

	PR debug/27057
	* dwarf2out.c (is_symbol_die): Return true also for namespaces.

2006-04-09  Roger Sayle  <roger@eyesopen.com>

	* expr.c (store_constructor): Don't bother clearing target if
	we're about to assign a vector to it using vec_init_optab.

2006-04-10 Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-alias.c (lhs_may_store_to): New function.
	(recalculate_used_alone): Handle LHS of calls.

2006-04-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/27034
	PR target/26508
	* config.gcc (hppa*64*-*-hpux11*): Add 'libgcc_stub.a' to extra_parts.
	* pa64-hpux.h (LIB_SPEC): Correct typo.  Don't append milli.a.
	(LINK_GCC_C_SEQUENCE_SPEC): Define.  Append milli.a here.
	(PA_CXA_FINALIZE_STUB, PA_JV_REGISTERCLASSES_STUB): Delete defines.
	(PA_INIT_FINI_HACK): Rename to PA_CRTBEGIN_HACK.
	(PA_CRTBEGIN_HACK): Ensure __do_global_ctors_aux is placed in text
	section.  Delete PA_CXA_FINALIZE_STUB and PA_JV_REGISTERCLASSES_STUB
	stubs.  Add ".align 8" directives before all ".dword" directives.
	(GTHREAD_USE_WEAK): Revise comment.
	(TARGET_ATTRIBUTE_WEAK): Define.
	* pa/t-pa64 (LIBGCCSTUB_OBJS): Add new rules for stublib.c, rfi-stub.o,
	dfi-stub.o, cxaf-stub.o and jvrc-stub.o.
	* stublib.c: New file.

	PR target/26743
	PR target/11254
	PR target/10274
	* pa.md (cbranch patterns): Revise arguments used in calls to
	output_cbranch, output_bb and output_bvd.  Add long branch length
	attributes.
	(fbranch patterns): Handle long branches.
	(jump): Revise length check.  Revise arguments for output_lbranch call.
	Add long branch length attributes.
	(decrement_and_branch_until_zero): Add long branch length attributes.
	(output_movb, output_parallel_addb and output_parallel_movb patterns):
	Likewise.  Revise arguments for output_parallel_addb and
	output_parallel_movb calls.
	* pa-protos.h (output_cbranch, output_lbranch, output_bb, output_bvb,
	output_parallel_movb and output_parallel_addb): Update prototypes.
	* pa.c (output_cbranch): Revise arguments.  Correct handling of
	nullification in long branches.
	(output_lbranch): Add new argument to control extraction of delay
	instruction.
	(output_bb): Handle long branches.
	(output_bvb, output_dbra, output_movb, output_parallel_movb,
	output_parallel_addb): Likewise.

2006-04-09  Richard Sandiford  <richard@codesourcery.com>

	PR rtl-optimization/27073
	* gcse.c (try_replace_reg): Just propagate into REG_EQUAL notes,
	not REG_EQUIVs.

2006-04-08  Daniel Berlin  <dberlin@dberlin.org>

	* tree.h (tree_memory_tag): Add old_used_alone.
	(SMT_OLD_USED_ALONE): New macro.
	* tree-ssa-alias.c (recalculate_used_alone): Stop
	marking things for renaming unnecessarily.

2006-04-08  Kazu Hirata  <kazu@codesourcery.com>

	* builtins.c, config/arm/arm.c, config/i386/cygwin.h,
	config/i386/i386.c, config/ia64/ia64.c, config/s390/fixdfdi.h,
	config/sh/sh.c, config/sh/sh.h, df-scan.c, except.c,
	haifa-sched.c, optabs.c, rtl.h, sched-deps.c, sched-int.h,
	sched-rgn.c, tree-inline.h, tree-ssa-dom.c,
	tree-ssa-loop-prefetch.c, tree-ssa-operands.c,
	tree-vect-patterns.c, tree-vrp.c: Fix comment typos.  Follow
	spelling convensions.
	* config/ia64/ia64.opt, doc/contrib.texi, doc/invoke.texi,
	doc/passes.texi, doc/tm.texi, doc/tree-ssa.texi: Fix comment
	typos.  Follow spelling conventions.

2006-04-07  DJ Delorie  <dj@redhat.com>

	* config/m32c/m32c.c (m32c_function_arg): Structures are always
	passed on the stack.
	(m32c_init_cumulative_args): When a function returns a structure,
	always pass the pointer to that return area on the stack.
	(m32c_function_arg_advance): Don't increment the parameter number
	if we're processing the returned structure pointer.
	(pushm_info): Reverse order of registers.

2006-04-07  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-ssa-loop-niter.c (inverse, number_of_iterations_ne,
	assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
	number_of_iterations_le, number_of_iterations_cond, find_loop_niter,
	estimate_numbers_of_iterations_loop): Use build_int_cst instead of
	build_int_cst_type.
	* tree-chrec.c (chrec_fold_multiply_poly_poly,
	chrec_fold_multiply): Same.
	* tree-ssa-loop-ivopts.c (strip_offset_1, force_expr_to_var_cost,
	force_expr_to_var_cost): Same.
	* tree-mudflap.c (mf_xform_derefs_1): Same.
	* tree-ssa-loop-prefetch.c (idx_analyze_ref): Same.

2006-04-07  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.c (rs6000_rtx_costs) <CONST_DOUBLE>: Do not
	treat CONST_DOUBLE as INTVAL.  and64_2_operands require an extra
	insn.

2006-04-07  Jan Hubicka  <jh@suse.cz>

	* ipa-inline.c (cgraph_early_inlining): Collect garbage.

2006-04-07  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26135
	* tree-ssa-copy.c (stmt_may_generate_copy): Handle memory
	loads for store copy-prop.
	(copy_prop_visit_stmt): Likewise.

2006-04-05  Robert Millan  <robertmh@gnu.org>

	* gcc/config/i386/linux.h:  Add a comment to mark macros that are
	being overriden in config/k*bsd-gnu.h.
	* gcc/config/kfreebsd-gnu.h:  Redefine GLIBC_DYNAMIC_LINKER instead of
	DYNAMIC_LINKER.
	* gcc/config/knetbsd-gnu.h:  Ditto.

2006-04-06  Jan Hubicka  <jh@suse.cz>

	PR profile/20815
	PR profile/26399
	* coverage.c (coverage_checksum_string): Reorganize loop to not read
	after buffer.

2006-04-06  Mike Stump  <mrs@apple.com>

	* builtins.c (expand_builtin_longjmp):Use #ifdef instead of #if
	for HAVE_nonlocal_goto to be consistent.
	(expand_builtin_nonlocal_goto): Likewise.
	(expand_builtin_strcmp): Use #ifdef instead of #if
	for HAVE_cmpstrnsi to be consistent.

2006-04-05  DJ Delorie  <dj@redhat.com>

	* config/m32c/m32c.h (INCOMING_FRAME_SP_OFFSET): Adjust for m16c
	vs m32c.

2006-04-05  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/bfin.c (bfin_legitimate_address_p): Disallow
	got-relative addressing for anything but SImode.

	* config/bfin/lib1funcs.asm (modsi): P1/P2 can be call-clobbered
	even if the calling function doesn't modify them.

2006-04-05  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26919
	* ipa-inline.c (cgraph_decide_inlining_incrementally): Fix argument
	to cgraph_estimate_size_after_inlining.

2006-04-05  Alan Modra  <amodra@bigpond.net.au>

	* reload.c (find_dummy_reload): Fix typo in 2006-04-03 change.

2006-04-05  Sebastian Pop  <pop@cri.ensmp.fr>

	PR tree-optimization/26996
	* tree-scalar-evolution.c (analyze_scalar_evolution_1): Don't analyze
	VECTOR_TYPE variables.

2006-04-05  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26763
	* fold-const.c (fold_comparison): Move folding of
	PTR + CST CMP PTR + CST ...
	(fold_binary): ... here.  Fold only for EQ_EXPR and NE_EXPR.

2006-04-05  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/install.texi (Prerequisites): Refine some wording on
	bootstrapping and ksh.
	Move the version numbers of DejaGnu here from the testing section
	and fix casing of names.
	Fix markup and clarify wording for autogen requirements.
	Refer to GCJ instead of just java.
	Refer to SVN instead of CVS.
	Describe diffutils as useful instead of necessary.
	(Downloading the source): Refer to SVN instead of CVS.
	Adjust a link to our web site accordingly.
	(Configuration): Fix casing of Bison.
	(Building): Refer to SVN instead of CVS.
	Fix a sentence on the use of Bison and remove duplicate (and
	incorrect) version number of Bison requirement.
	Remove one redundant list of packages needed for building.
	(Specific): Avoid reference to CVS.

2006-04-04  Eric Christopher  <echristo@apple.com>

	* config/rs6000/rs6000.c (TARGET_MS_BITFIELD_LAYOUT_P): Define.
	(TARGET_USE_MS_BITFIELD_LAYOUT): Ditto.
	(rs6000_handle_struct_attribute): New.
	(rs6000_ms_bitfield_layout_p): Ditto.

2006-04-04  Geoffrey Keating  <geoffk@apple.com>

	* config/darwin-crt3.c (atexit): Pass &__dso_handle rather than
	NULL for dso parameter to atexit_common.

2006-04-04  Eric Christopher  <echristo@apple.com>

	* config/i386/i386.c (machopic_output_stub): Output \t
	between instructions and operands.

2006-04-04  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.c (num_insns_constant_wide): Change
	satisfies_constraint_[IL] to explicit tests on value.

2006-04-04  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
	set_nb_iterations_in_loop): Use build_int_cst instead of
	build_int_cst_type.
	* tree-data-ref.c (can_use_analyze_subscript_affine_affine): Use
	build_int_cst instead of convert.

2006-04-04  Carlos O'Donell  <carlos@codesourcery.com>

	* doc/tm.texi (TARGET_STRUCT_VALUE_RTX): Document
	new value 2 for incoming.
	* function.c (expand_function_start): Call struct_value_rtx
	with incoming as 2.
	* config/sparc/sparc.md: Comment updated_return.
	* config/sparc/sparc.opt: Add -mstd-struct-return option.
	* config/sparc/sparc.c (sparc_struct_value_rtx): Use standard
	struct return if sparc_std_struct_return and incoming is 2.
	(print_operand): Do not adjust return if
	sparc_std_struct_return.

2006-04-04  Roger Sayle  <roger@eyesopen.com>

	* builtins.c (fold_builtin_sprintf): Use fold_convert instead of
	convert in the middle-end.
	* expr.c (store_expr, store_constructor, get_inner_reference,
	expand_expr_real_1, string_constant, try_casesi, try_tablejump):
	Likewise.
	* tree.c (build_range_type): Likewise.

2006-04-04  Tom Tromey  <tromey@redhat.com>

	* doc/install.texi (Prerequisites): Mention jar.

2006-04-04  Daniel Berlin  <dberlin@dberlin.org>

	* doc/tree-ssa.texi (Preserving the virtual ssa form): New
	subsection.

2006-04-04  Matthias Klose  <doko@debian.org>

	* Makefile.in (unprotoize.o): Same dependencies as for protoize.o.

2006-04-03  Geoffrey Keating  <geoffk@apple.com>

	* doc/extend.texi (Function Attributes): Rewrite visibility
	attribute documentation.
	* doc/invoke.texi (C++ Dialect Options): Rewrite
	-fvisibility-inlines-hidden documentation to describe something
	entirely different, although in practise compatible.
	(Code Gen Options): Warn about system headers in -fvisibiltity=
	documentation.

	* doc/extend.texi (Other Builtins): Document that
	__builtin_nan is a compile-time constant only when its argument
	is valid.

2006-04-03  Adam Nemet  <anemet@caviumnetworks.com>

	* simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: When
	trying to remove TRUNCATE check if all bits outside the new mode
	are identical to the sign bit.

2006-04-03  Jeff Law  <law@redhat.com>

	* tree-ssa-dom.c (propagate_rhs_into_lhs): Avoid useless folding
	and operand scanning in some common cases.

2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
	    Dale Johannesen  <dalej@apple.com>

	PR target/19653
	* regclass.c (struct reg_pref): Update documentation.
	(regclass): Set prefclass to NO_REGS if memory is the best option.
	(record_reg_classes): Cope with a prefclass set to NO_REGS.
	* reload.c (find_reloads): Take PREFERRED_OUTPUT_RELOAD_CLASS
	into account.  For non-registers, equate an empty preferred
	reload class to a `!' in the constraint; move the if clause to
	do so after those that reject the insn.
	(push_reload): Allow PREFERRED_*_RELOAD_CLASS to liberally
	return NO_REGS.
	(find_dummy_reload): Likewise.
	* doc/tm.texi (Register Classes): Document what it means
	if PREFERRED_*_RELOAD_CLASS return NO_REGS.
	* config/i386/i386.c (ix86_preferred_reload_class): Force
	using SSE registers (and return NO_REGS for floating-point
	constants) if math is done with SSE.
	(ix86_preferred_output_reload_class): New.
	* config/i386/i386-protos.h (ix86_preferred_output_reload_class): New.
	* config/i386/i386.h (PREFERRED_OUTPUT_RELOAD_CLASS): New.
	* config/i386/i386.md: Remove # register preferences.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

	PR bootstrap/26992
	* tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
	chrec_is_positive, set_nb_iterations_in_loop): Use a variable for
	the type of nb_iter.
	(instantiate_parameters_1): Convert the operands before calling
	chrec_fold_minus, chrec_fold_plus, or chrec_fold_multiply.
	* tree-data-ref.c (can_use_analyze_subscript_affine_affine): Same.

2006-04-02  Roger Sayle  <roger@eyesopen.com>

	* builtins.c (dummy_object): Use build_int_cst instead of convert.
	* tree-ssa-ccp.c (maybe_fold_stmt_addition): Use fold_convert
	instead of convert.
	* dojump.c (do_jump): Likewise.
	* expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE, ARGS_SIZE_TREE): Likewise.
	* gimplify.c (gimple_boolify, gimplify_init_constructor,
	gimplify_boolean_expr): Likewise.
	* emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
	* varasm.c (array_size_for_constructor): Likewise.
	* tree-object-size.c (compute_object_offset): Likewise.

2006-04-02  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/26977
	* expr.c (emit_group_store): Check whether simplify_gen_subreg returns
	NULL_RTX, indicating it couldn't create a valid paradoxical subreg.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

	PR tree-optimization/26939
	* tree-chrec.c (chrec_merge): Use eq_evolutions_p.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-scalar-evolution.c (add_to_evolution_1): Pass an extra argument
	at_stmt.  Convert the type of operands before calling
	build_polynomial_chrec.
	(add_to_evolution): Pass an extra argument at_stmt.  Adjust the call to
	add_to_evolution_1.
	(follow_ssa_edge_in_rhs): Adjust call to add_to_evolution.
	(instantiate_parameters_1): Convert the type of operands before calling
	build_polynomial_chrec.
	* tree-chrec.c (chrec_fold_poly_cst, chrec_fold_plus_poly_poly,
	chrec_fold_multiply_poly_poly, chrec_replace_initial_condition,
	reset_evolution_in_loop): Insert asserts to check the types of the
	operands.
	(chrec_type): Moved...
	(eq_evolutions_p): Use operand_equal_p.
	* tree-chrec.h (build_polynomial_chrec): Insert an assert to check
	the types of the operands.
	(chrec_type): ...here.
	* tree-data-ref.c (create_data_ref): Convert the operands before
	calling chrec_replace_initial_condition.
	(same_access_functions, analyze_subscript_affine_affine,
	analyze_miv_subscript, all_chrecs_equal_p): Use eq_evolutions_p.
	(compute_subscript_distance, analyze_ziv_subscript,
	analyze_siv_subscript_cst_affine, compute_overlap_steps_for_affine_1_2,
	analyze_miv_subscript): Convert the operands before calling
	chrec_fold_minus or chrec_fold_plus.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-data-ref.c (compute_all_dependences): Use a pointer to
	the dependence_relations vector.
	(compute_data_dependences_for_loop): Adjust call to
	compute_all_dependences.

2006-04-01  Roger Sayle  <roger@eyesopen.com>
	    Richard Henderson  <rth@redhat.com>

	* gimplify.c (gimplify_scan_omp_clauses) <OMP_CLAUSE_IF>: Call
	gimple_boolify on the condition before calling gimplify_expr.

2006-03-31  Bob Wilson  <bob.wilson@acm.org>

	* config/xtensa/lib1funcs.asm: Rename abi_entry/abi_return macros
	to leaf_entry/leaf_return.  Change leaf_entry to add 16 bytes to
	the frame size.  Update to use the new macros.
	* config/xtensa/ieee754-sf.S: Use new leaf_entry/leaf_return macros.
	* config/xtensa/ieee754-df.S: Likewise.

2006-03-31  Richard Henderson  <rth@redhat.com>

	* tree-cfg.c (make_ctrl_stmt_edges, make_exit_edges): Merge into...
	(make_edges): ... here.  Control fallthru creation with a local
	variable.  Do not play with fake edges.
	(make_omp_sections_edges): Don't set EDGE_ABNORMAL.
	(make_goto_expr_edges): Don't play with fake edges.  Make for_call
	a boolean.

2006-04-01  Joseph S. Myers  <joseph@codesourcery.com>

	* dwarf2.h (DW64_CIE_ID): Define.
	* dwarf2out.c (DWARF_CIE_ID): Define.
	(output_call_frame_info): Output 0xffffffff before standard 8-byte
	length header.  Use DWARF_CIE_ID.
	(value_format): Use DW_FORM_data4 or DW_FORM_data8 for
	dw_val_class_loc_list depending on DWARF_OFFSET_SIZE.

2006-03-31  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/linux-atomic.asm: New file.
	* config/sh/t-linux (LIB2FUNCS_EXTRA): Add linux-atomic.asm.

2006-03-31  DJ Delorie  <dj@redhat.com>

	* config/m32c/cond.md: Set condition flags properly throughout.
	* config/m32c/minmax.md: Likewise.
	* config/m32c/prologue.md: Likewise.
	* config/m32c/bitops.md: Likewise.
	* config/m32c/muldiv.md: Likewise.
	* config/m32c/mov.md: Likewise.
	* config/m32c/addsub.md: Likewise.
	* config/m32c/m32c.md: Likewise.
	* config/m32c/jump.md: Likewise.
	* config/m32c/shift.md: Likewise.

	* config/m32c/cond.md (cmp<mode>): Call m32c_output_compare to
	conditionally output the pattern for this.
	* config/m32c/m32c.c (flags_needed_for_conditional): New.
	(m32c_compare_redundant): New.
	(m32c_output_compare): New.
	* config/m32c/m32c-protos.h (m32c_output_compare): New.

	* config/m32c/m32c.c (m32c_prepare_shift): Fix logic to clobber
	dest, not src.  Allow other 4-byte modes.

2006-03-30  Denis Chertykov  <denisc@overta.ru>

	* doc/md.texi: Refer to avr/constraints.md instead of
	avr/avr.h.

2006-03-30  Roger Sayle  <roger@eyesopen.com>

	* expr.c (emit_group_store): Make BYTEPOS a HOST_WIDE_INT to
	signed vs. unsigned comparison failures on some hosts.

2006-03-31  Alan Modra  <amodra@bigpond.net.au>

	PR target/26459
	* config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Limit 2003-12-08
	change to FLOAT_REGS.

	* config/rs6000/rs6000.c (rs6000_explicit_options): Add ieee.
	(rs6000_override_options): Use it.
	(rs6000_handle_option): Set it.  Set rs6000_explicit_options.abi
	only for -mabi=spe/no-spe and -mabi=altivec.

2006-03-30  Geoffrey Keating  <geoffk@apple.com>

	* config/darwin.h (LINK_COMMAND_SPEC): Don't try to protect %S with
	!Zdynamiclib.

2006-03-30  Carlos O'Donell  <carlos@codesourcery.com>

	* Makefile.in: Rename docdir to gcc_docdir.

2006-03-30  Roger Sayle  <roger@eyesopen.com>

	PR target/17959
	* expr.c (emit_group_store):  Optimize group stores into a pseudo
	register by using a paradoxical subreg to initialize the destination
	if the first or last member of the group specifies a "low part".

2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	PR target/26734
	* rtl.def (DEPS_LIST): Change type of the second operand to 'int'.
	* target.h (struct gcc_target.speculate_insn): Change type of the
	second parameter to 'int'.
	* lists.c (alloc_DEPS_LIST): Change signature.  Update reference to
	the second operand of the DEPS_LIST.
	(copy_DEPS_LIST_list): Update reference	to the second operand of the
	DEPS_LIST.
	* rtl.h (alloc_DEPS_LIST): Update signature.
	* sched-int.h (ds_t): Change typedef to 'int'.
	(DEP_STATUS, BITS_PER_DEP_STATUS): Update.

2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	* haifa-sched.c (try_ready): Change condition to restore
	non-speculative pattern	of the instruction.
	(process_insn_depend_be_in_spec): Code to keep probability of the
	speculative dependence non-decreasing.

2006-03-30  Jie Zhang  <jie.zhang@analog.com>

	* config/bfin/bfin.c (single_move_for_strmov): Renamed to...
	(single_move_for_movmem): ... this. Also change all uses.
	(bfin_expand_strmov): Renamed to...
	(bfin_expand_movmem): ... this. Also change all uses.
	* config/bfin/bfin.md (movstrsi): Renamed to...
	(movstrsi): ...this.

2006-03-30  Paolo Bonzini  <bonzini@gnu.org>

	PR tree-optimization/26830

	* tree-ssa-copy.c (copy_prop_visit_assignment): Do not check loop depth.
	(copy_prop_visit_stmt): Remove write-only variable ann.
	(init_copy_prop): Check variable loop depth here.  Do not simulate
	memory-tag and virtual operand PHIs except for store copy prop.

2006-03-30  Richard Guenther  <rguenther@suse.de>

	* config/i386/i386.c: Remove builtins for SSE2 ABI intrinsic
	variants with double arguments.

2006-03-29  David Edelsohn  <edelsohn@gnu.org>

	* genpreds.c (write_tm_constrs_h): Delete variable p.
	* genconditions.c (write_header): Add tm-constrs.h to included
	headers.
	* genpeep.c (main): Add toplev.h to included headers.
	* Makefile.in (build/gencondmd.o): Add tm-constrs.h dependency.
	(build/genpeep.o): Add toplev.h dependency.
	* config/rs6000/constraints.md: Add "W" constraint.

2006-03-29  Roger Sayle  <roger@eyesopen.com>

	* stor-layout.c (mode_for_size_tree): Remove restiction on type
	sizes by correctly testing whether the size fits a host integer.
	(initialize_sizetypes): Use set_min_and_max_values_for_integral_type
	to correctly set TYPE_MIN_VALUE and TYPE_MAX_VALUE to the full
	SImode range for the default sizetype and bitsizetype.

2006-03-29  Roger Sayle  <roger@eyesopen.com>

	* convert.c (convert_to_pointer): Preserve the TREE_OVERFLOW
	and TREE_CONSTANT_OVERFLOW bits of the argument.  Return
	quickly if the argument is already of the correct type.
	Call fold_build1 instead of build1.  Tidy up blank lines.

2006-03-29  David Edelsohn  <edelsohn@gnu.org>

	* genemit.c (main): Add tm-constrs.h to included headers.
	* genoutput.c (output_prologue): Add tm-constrs.h to included headers.
	* genpeep.c (main): Add tm-constrs.h to included headers.
	* genpreds.c (write_satisfies_constraint_fns): Rename to ...
	(write_tm_constrs_h): this and write complete file.
	(write_tm_preds_h): Do not emit satisfies_constraint fns.
	(write_insn_preds_c): Add tm-constrs.h to included headers.
	(gen_constrs): New variable.
	(parse_option): Parse "-c".
	(main): Invoke write_tm_constrs_h.
	* genrecog.c (write_header): Add tm-constrs.h to included headers.
	* Makefile.in (STAGECOPYSTUFF): Add tm-constrs.h.
	(object_out_file): Add tm-constrs.h dependency.
	(insn-emit.o): Same.
	(insn-output.o): Same.
	(insn-peep.o): Same.
	(insn-preds.o): Same.
	(insn-recog.o): Same.
	(tm-constsr.h): New target.
	(s-constrs-h): New target.

	* config/rs6000/constraints.md: New file.
	* config/rs6000/rs6000.c: Include tm-constrs.h.
	(num_insn_constant_wide): Convert to satisfies_constraint.
	(rs6000_rtx_costs): Convert to satisfies_constraint.
	* config/rs6000/rs6000.h (REG_CLASS_FROM_LETTER): Delete.
	(CONST_OK_FOR_LETTER_P): Delete.
	(CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
	(EXTRA_CONSTRAINT): Delete.
	(EXTRA_MEMORY_CONSTRAINT): Delete.
	(EXTRA_ADDRESS_CONSTRAINT): Delete.
	* config/rs6000/predicates.md: Convert to satisfies_constraint.
	* config/rs6000/rs6000.md: Include constraints.md.  Convert to
	satisfies_constraint.

	* config/i386/i386.c: Include tm-constrs.h.

2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-loop-linear.c (compute_data_dependences_for_loop): Adjust calls.
	* tree-data-ref.c (find_data_references_in_loop,
	compute_data_dependences_for_loop): Use pointers to VEC.
	(analyze_all_data_dependences): Adjust calls.
	* tree-data-ref.h (find_data_references_in_loop,
	compute_data_dependences_for_loop): Adjust declarations.
	* tree-vect-analyze.c (vect_analyze_data_refs): Adjust call to
	compute_data_dependences_for_loop.

2006-03-29  Paul Brook  <paul@codesourcery.com>

	* config/arm/vfp.md (movsf_vfp): Disparage w<->r alternatives.
	(movdf_vfp): Ditto.

2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>

	PR tree-optimization/26859
	* tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined): Avoid
	division by zero.
	(convert_step): Remove TREE_OVERFLOW and TREE_CONSTANT_OVERFLOW flags
	for the step after fold_convert.

2006-03-29  Paul Brook  <paul@codesourcery.com>

	* reload1.c (choose_reload_regs): Check for all RTX_AUTOINC operators.
	(inc_for_reload): Handle PRE_MODIFY and POST_MODIFY addresses.

2006-03-29  Paul Brook  <paul@codesourcery.com>

	PR middle-end/23623
	* targhooks.c (default_narrow_bitfield): New fuction.
	* targhooks.h (default_narrow_bitfield): add prototype.
	* target.h (gcc_target): Add narrow_volatile_bitfield.
	* target-def.h (TARGET_NARROW_VOLATILE_BITFIELD): Define.
	* stor-layout.c (get_best_mode): Use targetm.narrow_volatile_bitfield.
	* doc/tm.texi: Document TARGET_NARROW_VOLATILE_BITFIELDS.
	* config/arm/arm.c (TARGET_NARROW_VOLATILE_BITFIELD): Define.

2006-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config.gcc (s390-*-linux-*, s390x-*-linux*): Add t-dfprules to
	tmake_file.
	* config/s390/s390.c (S390_scalar_mode_supported_p): New function.
	(NR_C_MODES): Add TDmode, DDmode and SDmode.
	(s390_output_pool_entry, ): Accept MODE_DECIMAL_FLOAT.
	(s390_hard_regno_mode_ok): Disallow TDmode in integer regs.
	(s390_function_arg_float): Allow SDmode and DDmode values to be
	passed in floating point registers.
	(s390_function_arg_integer, s390_function_value): Replace MODE_FLOAT
	check with SCALAR_FLOAT_MODE_P.
	(TARGET_SCALAR_MODE_SUPPORTED_P): Define target macro.

2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/25985
	* tree-ssa-loop-niter.c (number_of_iterations_le,
	number_of_iterations_ne): Make comments more precise.
	(number_of_iterations_cond): Add only_exit argument.  Use the
	fact that signed variables do not overflow only when only_exit
	is true.
	(loop_only_exit_p): New.
	(number_of_iterations_exit): Pass result of loop_only_exit_p to
	number_of_iterations_cond.

2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/26643
	* tree-ssa-loop-ivopts.c (find_interesting_uses_address): Do not handle
	bit_field_refs.

2006-03-28  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/sh.md (udivsi3_i4_int): Clobber MACH_REG and MACL_REG.
	(divsi3_i4_int): Likewise.

2006-03-28  Roger Sayle   <roger@eyesopen.com>

	* expr.c (emit_group_store): Only create a new pseudo reg if the
	quantity it needs to hold isn't already a suitable pseudo.

2006-03-28  Jeff Law  <law@redhat.com>

	* timevar.def (TV_TREE_PHI_CPROP): New timevar.
	* tree-ssa-dom.c (pass_phi_only_cprop): Use it.

2006-03-28  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & Y) ^ Y as
	the equivalent ~X & Y, and the symmetry related transformations.
	(fold_binary) <BIT_AND_EXPR>: Similarly, fold (X ^ Y) & Y as
	~X & Y, and symmetry related transforms.

2006-03-28  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	Revert my 2006-03-27 patches.

2006-03-28  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (fold_unary) <NOP_EXPR>: Fold (T1)(~(T2)X) as
	~(T1)X, when T1 and T2 are integer types of the same precision
	and (T2)X isn't an extension.

2006-03-28  Jeff Law  <law@redhat.com>

	PR tree-optimization/26796
	* tree-ssa-dom.c (propagate_rhs_into_lhs): Queue blocks which
	need EH edge cleanups rather than purging them immediately.
	(eliminate_degenerate_phis): Handle queued EH cleanups.

2006-03-28  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-alias.c (create_sft): Initially inherit TREE_ADDRESSABLE
	from parent_var.

2006-03-27  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/22524
	* fold-const.c (fold_binary) <MINUS_EXPR>: Call fold_convert to
	cast BIT_NOT_EXPR operand to the correct type.

2006-03-27  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-loop-linear.c: Don't include varray.h.
	(gather_interchange_stats, try_interchange_loops,
	linear_transform_loops): Use VEC instead of VARRAY.
	* lambda-mat.c: Don't include varray.h.
	* tree-chrec.c: Same.
	* lambda-trans.c: Same.
	* tree-vectorizer.c (new_loop_vec_info, destroy_loop_vec_info): Use
	VEC instead of VARRAY.
	* tree-vectorizer.h: Idem.
	* tree-data-ref.c (dump_data_references,
	dump_data_dependence_relations, dump_dist_dir_vectors, dump_ddrs,
	initialize_data_dependence_relation, finalize_ddr_dependent,
	compute_all_dependences, find_data_references_in_loop,
	compute_data_dependences_for_loop, analyze_all_data_dependences,
	free_dependence_relation, free_dependence_relations,
	free_data_refs): Idem.
	* tree-data-ref.h (data_reference_p, subscript_p): New.
	(data_dependence_relation, DDR_SUBSCRIPT, DDR_NUM_SUBSCRIPTS): Use
	VEC instead of VARRAY.
	(DDR_SUBSCRIPTS_VECTOR_INIT): Removed.
	(find_data_references_in_loop, compute_data_dependences_for_loop,
	dump_ddrs, dump_dist_dir_vectors, dump_data_references,
	dump_data_dependence_relations, free_dependence_relations,
	free_data_refs): Adjust declaration.
	(lambda_transform_legal_p): Move declaration here...
	* tree-vect-analyze.c (vect_analyze_data_ref_dependences,
	vect_compute_data_refs_alignment, vect_verify_datarefs_alignment,
	vect_enhance_data_refs_alignment, vect_analyze_data_ref_accesses,
	vect_analyze_data_refs): Use VEC instead of VARRAY.
	* lambda.h (lambda_transform_legal_p): ...from here.
	* lambda-code.c (lambda_transform_legal_p): Use VEC instead of VARRAY.
	* tree-vect-transform.c (vect_update_inits_of_drs): Idem.
	* Makefile.in (tree-loop-linear.o, lambda-mat.o, lambda-trans.o,
	tree-chrec.o): Don't depend on VARRAY_H.

2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	* rtl.def (Copyright): Update date.
	(DEPS_LIST): Change type of the second operand to 'int'.
	* target.h (Copyright): Update date.
	(struct gcc_target.speculate_insn): Change type of the second parameter
	to 'int'.
	* lists.c (Copyright): Update date.
	(alloc_DEPS_LIST): Change signature.  Update reference to the second
	operand of the DEPS_LIST.
	(copy_DEPS_LIST_list): Update reference	to the second operand of the
	DEPS_LIST.
	* rtl.h (Copyright): Update date.
	(alloc_DEPS_LIST): Update signature.
	* sched-int.h (Copyright): Update date.
	(ds_t): Change typedef to 'int'.
	(DEP_STATUS, BITS_PER_DEP_STATUS): Update.

2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	* haifa-sched.c (Copyright): Update date.
	(try_ready): Change condition to restore non-speculative pattern
	of the instruction.
	(process_insn_depend_be_in_spec): Code to keep probability of the
	speculative dependence non-decreasing.

2006-03-27  Bernd Schmidt  <bernd.schmidt@analog.com>

	* regrename.c (replace_oldest_value_addr): Initialize a variable to
	shut up the compiler.

2006-03-27  J"orn Rennecke <joern.rennecke@st.com>

	* config/sh/t-sh ($(T)libic_invalidate_array_4-100.a): Fix rule
	to use lib prefix for target.
	($(T)libic_invalidate_array_4-200.a): Likewise.
	($(T)libic_invalidate_array_4a.a): Likewise.

2006-03-27  Andrew Stubbs <andrew.stubbs@st.com>
	    J"orn Rennecke <joern.rennecke@st.com>

	* superh.opt: New file.
	* sh.c (boardtype, osruntime): Remove.
	* superh.h (SUBTARGET_OPTIONS): Remove.
	* config.gcc (sh*-superh-elf): Add sh/superh.opt to extra_options.

	* config.gcc (sh*-*-*): Don't use c-c ranges for tr.  Quote sed
	arguments with ^ and/or [].

	* config.gcc (sh-*-*): Add quoting to account for quirk of
	Solaris /bin/sh.
	Replace == with = in enable_incomplete_targets test.

	* config/sh/superh.h (SUBTARGET_LINK_SPEC): Replace LITTLE_ENDIAN_BIT
	with MASK_LITTLE_ENDIAN.

	* config.gcc (sh*-superh-elf): Add sh/superh.h to tm_file.
	* config/sh/sh.opt: Added to some comments.
	* config/sh/superh.h: Removed some chaff.

	* config/sh/sh.opt: Add m4-[1234]00* options.
	* config/sh/sh.c (sh_handle_option): Likewise.
	* config/sh/t-sh (IC_EXTRA_PARTS, EXTRA_MULTILIB_PARTS): Define.
	(ic_invalidate_array_4-100.o): New rule.
	($(T)libic_invalidate_array_4-100.a): Likewise.
	(ic_invalidate_array_4-200.o): Likewise.
	($(T)libic_invalidate_array_4-200.a): Likewise.
	(ic_invalidate_array_4a.o): Likewise.
	($(T)libic_invalidate_array_4a.a): Likewise.
	* config/sh/t-elf (EXTRA_MULTILIB_PARTS): Add IC_EXTRA_PARTS.
	* config/sh/embed-elf.h (LIBGCC_SPEC): Add clauses for m4-100*,
	m4-200*, and m4a*.
	* config/sh/crt1.asm: Merged in profiling code.
	* config/sh/superh.h (STARTFILE_SPEC): Override.
	* config/sh/t-superh: Override EXTRA_MULTILIB_PARTS.
	Add rules for $(T)crt1-mmu.o, $(T)gcrt1-mmu.o and $(T)gcrt1.o.
	* config.gcc (sh*-superh-elf): Add t-superh to tmake_file.

	* t-sh (MULTILIB_MATCHES): Add sh4-[1245]00* variants.
	* config/sh/t-superh: Removed now-redundant MULTILIB_OPTIONS /
	MULTILIB_DIRNAMES / MULTILIB_MATCHES settings.

	* sh.opt (mpretend-cmove): New option.
	* sh.h (OPERRIDE_OPTIONS): Switch it off if not TARGET_SH1.
	* sh.md (movsicc_t_false, movsicc_t_tru): New patterns.
	(movsicc): Add TARGET_PRETEND_CMOVE code.

2006-03-27  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390-protos.h (s390_hard_regno_mode_ok,
	s390_class_max_nregs): New function prototypes.
	* config/s390/s390.c (REGNO_PAIR_OK): New macro.
	(s390_hard_regno_mode_ok, s390_class_max_nregs): New functions.
	* config/s390/s390.h (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK,
	CLASS_MAX_NREGS): Macro bodies replaced by function calls.

2006-03-26  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (add_location_or_const_value_attribute): Call
	tree_add_const_value_attribute if nothing else works.
	(reference_to_unused): New.
	(rtl_for_decl_init): Use reference_to_unused to decide whether
	to output an initializer.

2006-03-27  Alan Modra  <amodra@bigpond.net.au>

	PR target/26459
	* config/rs6000/rs6000.md (DF reg move peephole): Prevent
	peephole removing spe frob_di_df_2.

2006-03-26  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-data-ref.c: Rename DDR_SIZE_VECT to DDR_NB_LOOPS.
	(subscript_dependence_tester_1): Declared.
	(print_dir_vectors, print_dist_vectors): New.
	(debug_data_dependence_relation): New.
	(dump_data_dependence_relation): Print more details.
	(initialize_data_dependence_relation): Initialize DDR_LOOP_NEST.
	(analyze_subscript_affine_affine): Don't ICE when gcd_alpha_beta is 0.
	(save_dist_v, save_dir_v, add_outer_distances,
	build_classic_dist_vector_1): New.
	(build_classic_dist_vector): Rewrite to work on DDR_LOOP_NEST.
	Don't test for lambda_vector_lexico_pos.
	(same_access_functions, add_multivariate_self_dist,
	add_other_self_distances, dir_from_dist): New.
	(build_classic_dir_vector): Replace implementation almost identical to
	build_classic_dist_vector with a walk of DDR_DIST_VECTS with a call to
	dir_from_dist.
	(subscript_dependence_tester_1): New.
	(subscript_dependence_tester): Handle the lexicographically negative
	distance vectors by recomputing the dependence relation.
	(compute_affine_dependence): Remove parameter loop_nest_depth.
	(compute_self_dependence): Don't call compute_subscript_distance.
	(compute_all_dependences): Remove parameters nb_loops, loop_nest_depth.
	Add a parameter for the loop_nest.
	(find_loop_nest_1, find_loop_nest): New.
	(compute_data_dependences_for_loop): Compute the loop nest, and give
	up if the nest is not well formed.
	* tree-data-ref.h (loop_p): New.
	(struct data_dependence_relation): Replace size_vect field with
	loop_nest, a vec of loops.
	(DDR_SIZE_VECT): Renamed DDR_NB_LOOPS.
	(DDR_LOOP_NEST): New.
	(print_dir_vectors, print_dist_vectors,
	debug_data_dependence_relation): Declared.
	(index_in_loop_nest): New.
	* tree-vect-analyze.c (vect_analyze_data_ref_dependence): Use
	DDR_LOOP_NEST and index_in_loop_nest to determine the dependence
	distance.

2006-03-25  Adam Nemet  <anemet@caviumnetworks.com>

	* simplify-rtx.c (simplify_relational_operation): Call
	simplify_relational_operation_1 even if mode is VOIDmode.

2006-03-25  Daniel Berlin  <dberlin@dberlin.org>

	PR tree-optimization/26804
	* tree.h (DECL_CALL_CLOBBERED): New macro.
	(tree_decl_common): Add call_clobbered_flag.
	* tree-flow-inline.h (is_call_clobbered): Use DECL_CALL_CLOBBERED.
	(mark_call_clobbered): Set DECL_CALL_CLOBBERED.
	(clear_call_clobbered): Clear DECL_CALL_CLOBBERED.
	(mark_non_addressable): Ditto.
	* tree-ssa.c (verify_call_clobbered): New function.
	(verify_alias_info): Use it.
	* tree-pass.h (pass_reset_cc_flags): New prototype.
	* tree-ssa-alias.c (pass_reset_cc_flags): New structure.
	(reset_cc_flags): New function.
	* passes.c (init_optimization_passes): Call reset_cc_flags after
	initializing referenced_vars.

2006-03-25  Uros Bizjak  <uros@kss-loka.si>
	    Roger Sayle  <roger@eyesopen.com>

	PR middle-end/26717
	* fold-const.c (fold_binary) [RDIV_EXPR]: Do not optimize A / A
	to 1.0 for non-real operands. Implement A / A optimization for
	complex operands.

2006-03-25  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (size_cost): Correct the comment for
	cost of storing fp registers.
	(i386_cost): Likewise.
	(i486_cost): Likewise.
	(pentium_cost): Likewise.
	(pentiumpro_cost): Likewise.
	(k6_cost): Likewise.
	(athlon_cost): Likewise.
	(k8_cost): Likewise.
	(pentium4_cost): Likewise.
	(nocona_cost): Likewise.
	(generic64_cost): Likewise.
	(generic32_cost): Likewise.

2006-03-24  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr-protos.h (extra_constraint): Delete.
	(extra_constraint_Q): New declaration.
	* config/avr/constraints.md: New file.
	* config/avr/avr.md: Include it.
	(REG_X, REG_Y, REG_Z, REG_W): New constants.
	(TMP_REGNO, ZERO_REGNO): Likewise.
	(UNSPEC_STRLEN, UNSPEC_INDEX_JMP): Likewise.
	* config/avr/avr.c (avr_reg_class_from_letter): Delete.
	(extra_constraint): Delete.
	(extra_constraint_Q): Test for memory constraint 'Q'.
	* config/avr/avr.h (REG_X,REG_Y,REG_Z,REG_W): Delete.
	(REG_CLASS_FROM_LETTER): Delete.
	(CONST_OK_FOR_LETTER_P): Delete.
	(CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
	(EXTRA_CONSTRAINT): Delete.
	(TMP_REGNO): Delete.
	(ZERO_REGNO): Delete.

2006-03-24  Jeff Law  <law@redhat.com>

	* tree-ssa-dom.c (propagate_rhs_into_lhs): Don't call update_stmt
	directly.  Call mark_new_vars_to_rename slightly earlier.

2006-03-24  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (is_c_family): Understand new DWARF3 language types.
	(is_cxx): Likewise.
	(gen_compile_unit_die): Use new language types for Objective-C and
	Objective-C++.
	(dwarf2out_decl): Use is_cxx rather than testing explicitly against
	DW_LANG_C_plus_plus.

	PR 26793
	* config/t-darwin (crt3.o): Work around bug 26840.
	* config/darwin-crt3.c: Rewrite.
	* config/darwin.h (STARTFILE_SPEC): Don't use -l for crt3.o.

2006-03-24  Carlos O'Donell  <carlos@codesourcery.com>

	* doc/invoke.texi: Document -femit-class-debug-always
	* common.opt: Add -femit-class-debug-always.

2006-03-24  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.c (s390_decompose_address): Allow SImode for
	index and base register.
	(s390_expand_plug_operand, legitimate_address_p, preferred_la_operand_p,
	print_operand_address, print_operand): Replaced REG_OK_FOR_BASE_STRICT_P
	with REGNO_OK_FOR_BASE_P and REG_OK_FOR_INDEX_STRICT_P with
	REGNO_OK_FOR_INDEX_P.
	* config/s390/s390.h (REGNO_OK_FOR_INDEX_P): Replaced check with
	ADDR_REGNO_P.
	(REG_OK_FOR_INDEX_NONSTRICT_P, REG_OK_FOR_BASE_NONSTRICT_P,
	REG_OK_FOR_INDEX_STRICT_P, REG_OK_FOR_BASE_STRICT_P, REG_OK_FOR_INDEX_P,
	REG_OK_FOR_BASE_P): Definitions removed.

2006-03-24  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/26611
	* gimplify.c (gimplify_bind_expr): Only call omp_add_variable on
	non-global variables that don't have DECL_SEEN_IN_BIND_EXPR_P bit
	set yet or weren't marked as local yet.

2006-03-24  Bernd Schmidt  <bernd.schmidt@analog.com>

	* regrename.c (scan_rtx_address): Initialize a variable to shut up
	the compiler.

2006-03-24  Eric Botcazou  <ebotcazou@adacore.com>

	* config/rs6000/rs6000-protos.h (rs6000_offsettable_memref_p): Declare.
	(rs6000_legitimate_small_data_p): Delete.
	* config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New predicate.
	(rs6000_legitimate_small_data_p): Rename to legitimate_small_data_p
	and make static.  Add forward declaration.  Update uses.
	(rs6000_split_multireg_move): Use rs6000_offsettable_memref_p instead
	of offsettable_memref_p.
	* config/rs6000/rs6000.md (movdf_hardfloat32): Revert 2005-08-23 fix.
	Use rs6000_offsettable_memref_p instead of a less accurate predicate.

2006-03-24  Jeff Law  <law@redhat.com>

	* tree-ssa-dom.c (propagate_rhs_into_lhs): Temporarily work
	around bug in immediate-use iterator.

2006-03-24  Alan Modra  <amodra@bigpond.net.au>

	PR target/26607
	* config/rs6000/darwin-ldouble.c: Don't compile when __NO_FPRS__
	or __LITTLE_ENDIAN__.

2006-03-23  J"orn Rennecke <joern.rennecke@st.com>

	* config/sh/divtab-sh4.c, config/sh/divcost-analysis: New files.
	* config/sh/lib1funcs.asm (div_table): Add !__SH5__ variant.
	* config/sh/t-sh (LIB1ASMFUNCS): Add _div_table.
	* config/sh/sh.opt (mdiv=): Amend description.
	* config/sh/sh.h (TARGET_DIVIDE_CALL_DIV1): New macro.
	(TARGET_DIVIDE_CALL_FP, TARGET_DIVIDE_CALL_TABLE): Likewise.
	(sh_divide_strategy_e): Add new members SH_DIV_CALL_DIV1,
	SH_DIV_CALL_FP, SH_DIV_CALL_TABLE and SH_DIV_INTRINSIC.
	(OVERRIDE_OPTIONS): Also process sh_div_str for TARGET_SH1.
	Calculate sh_divsi3_libfunc using TARGET_DIVIDE_* macros.
	* config/sh/sh.md (udivsi3_i4_int, divsi3_i4_int): New patterns.
	(udivsi3, divsi3): Use them.  Check TARGET_DIVIDE_CALL_TABLE /
	TARGET_DIVIDE_CALL_FP.

2006-03-23  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	* haifa-sched.c (choose_ready): Fix type of the local variable.
	Move local variables.  Add comment.
	(check_reg_live): Change signature.  Make callable from debugger.
	* sched-int.h (check_reg_live): Update signature.
	* sched-ebb.c (check_reg_live): Update parameters.
	* sched-rgn.c (check_reg_live): Ditto.
	(region_head_or_leaf_p): Check pointer before dereferencing.
	* config/ia64/ia64.c (ia64_set_sched_flags): Disable data speculation
	before reload on optimization levels below 1.

2006-03-23  Richard Henderson  <rth@redhat.com>

	* config/alpha/alpha.c (alpha_legitimate_constant_p): Reject
	tls symbols.

	PR target/26347
	* config/alpha/predicates.md (local_symbolic_operand): Reject
	weak symbols.

2006-03-23  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/26795
	* tree-ssa-pre.c (create_value_expr_from): Don't reject
	expressions which have overflowed constants.

2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>

	* cse.c (cse_end_of_basic_block): Do not check for LOOP_END note.

2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>

	* cfgloopmanip.c (create_loop_notes): Removed.
	* final.c (final_scan_insn): Do not handle loop notes.
	* jump.c (squeeze_notes): Ditto.
	* cfglayout.c (skip_insns_after_block,
	duplicate_insn_chain): Ditto.
	* cfgcleanup.c (rest_of_handle_jump2): Do not call
	create_loop_notes.
	* cfgloop.h (create_loop_notes): Declaration removed.

2006-03-23  Richard Sandiford  <richard@codesourcery.com>

	* varasm.c (output_constant_pool): Restore fnname and fndecl
	arguments.
	(assemble_start_function): Adjust call accordingly.
	(assemble_end_function): Likewise.

2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR mudflap/26789
	* tree-mudflap.c (mudflap_finish_file): Skip erroneous objects.

	PR mudflap/26790
	* tree-mudflap.c (mf_xform_derefs_1): Return early on error_mark_node.

2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR driver/22600
	* system.h (ICE_EXIT_CODE): New macro.
	* diagnostic.c (diagnostic_count_diagnostic): Exit with ICE_EXIT_CODE.
	(diagnostic_action_after_output): Likewise.
	* gcc.c (fatal_ice): New function.
	(execute): Use it instead of fatal.
	(fancy_abort): Likewise.
	* doc/invoke.texi (-pass-exit-codes): Document return code for ICEs.

2006-03-22  Jeff Law  <law@redhat.com>

	* loop-unroll.c (analyze_iv_to_split_insn): Handle
	iv_analyze_result returning false.

2006-03-22  Jie Zhang  <jie.zhang@analog.com>

	* config/bfin/bfin.h (ASM_FORMAT_PRIVATE_NAME): Remove.

2006-03-22  Richard Henderson  <rth@redhat.com>

	PR middle-end/26084
	* except.c (duplicate_eh_regions_0): New.
	(duplicate_eh_region_1): Duplicate the children of the node as
	well as the node itself.  Link them up properly.
	(duplicate_eh_region_2): Merge into ...
	(duplicate_eh_regions): ... here.  Take copy_region argument, and
	copy only a sub-tree if asked.  Simplify copying and fixup.
	(eh_region_outer_p): New.
	* except.h (duplicate_eh_regions): Update decl.
	(eh_region_outer_p): Declare.
	* omp-low.c (lower_omp_single): Fix eh region placement wrt OMP_RETURN.
	(lower_omp_master): Likewise.
	(lower_omp_ordered): Likewise.
	* tree-cfg.c (struct move_stmt_d): Add new_label_map.
	(move_stmt_r): Use it to remap labels.  Handle recursion vs
	remap_decls_p properly.
	(move_block_to_fn): Pass in new_label_map.  Remap RESX_EXPR.
	(find_outermost_region_in_block): New.
	(new_label_mapper): New.
	(move_sese_region_to_fn): Copy eh information to the new function
	properly.
	* tree-inline.c (copy_cfg_body): Update for new duplicate_eh_regions
	argument.
	* tree-pretty-print.c (dump_generic_node): Dump RESX_EXPR region
	number.

2006-03-22  Richard Sandiford  <richard@codesourcery.com>

	* doc/md.texi (-mshared): Mention that -mshared code can be linked
	into shared libraries.

2006-03-22  Richard Sandiford  <richard@codesourcery.com>

	* doc/md.texi: Refer to i386/constraints.md instead of
	i386/predicates.md.
	* config/i386/constraints.md: New file, extracted from...
	* config/i386/predicates.md: ...here.
	* config/i386/i386.md: Include constraints.md.

2006-03-21  Jason Merrill  <jason@redhat.com>

	* builtins.c (expand_builtin_fork_or_exec): Fix pasto.

	PR middle-end/20297
	* expr.c (init_block_move_fn): Force default visibility.
	(init_block_clear_fn): Likewise.
	* builtins.c (expand_builtin_fork_or_exec): Likewise.
	* targhooks.c (default_external_stack_protect_fail): Likewise.

2006-03-21  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/predicates.md (const_call_insn_operand): Allow direct
	calls to locally-defined functions if TARGET_ABSOLUTE_ABICALLS.
	* config/mips/mips.md (jal_macro): Test TARGET_ABSOLUTE_ABICALLS.
	Use TARGET_OLDABI instead of !TARGET_NEWABI.
	(loadgp): Use mips_current_loadgp_style.
	(loadgp_noshared): New pattern.
	(sibcall_internal): Use MIPS_CALL.
	(sibcall_value_internal): Likewise.
	(sibcall_value_multiple_internal): Likewise.
	(call_internal): Likewise.
	(call_value_internal): Likewise.
	(call_value_multiple_internal): Likewise.
	(call_split): Use MIPS_CALL and add an 'S' constraint.
	(call_value_split): Likewise.
	(call_value_multiple_split): Likewise.
	* config/mips/mips.opt (-mabicalls): Tweak docstring.
	(-mshared): New option.
	* config/mips/mips-protos.h (mips_loadgp_style): New enum.
	(mips_current_loadgp_style): Declare.
	* config/mips/mips.c (mips_classify_symbol): Avoid using
	SYMBOL_GOT_LOCAL if TARGET_ABSOLUTE_ABICALLS.  Use SYMBOL_GENERAL
	rather than SYMBOL_GOT_GLOBAL for locally-binding symbols if
	TARGET_ABSOLUTE_ABICALLS.
	(override_options): Adjust comments.  Improve the warning that is
	issued when -mabicalls and -G are used together.
	(mips_file_start): Remove comment.
	(mips_current_loadgp_style): New function.
	(mips_gnu_local_gp): New variable.
	(mips_emit_loadgp): Use mips_current_loadgp_style.  Handle
	LOADGP_ABSOLUTE.
	(mips_output_function_prologue): Use mips_current_laodgp_style.
	(mips_expand_prologue): Call mips_emit_loadgp before emitting
	the cprestore instruction.
	(mips_extra_live_on_entry): Fix reversed test.  Don't make $25
	live for TARGET_ABSOLUTE_ABICALLS.
	* config/mips/mips.h (TARGET_ABSOLUTE_ABICALLS): New macro.
	(ASM_SPEC): Pass down -mshared and -mno-shared.
	(MIPS_CALL): New macro.
	* config/mips/netbsd.h (TARGET_OS_CPP_BUILTINS): Remove __ABICALLS__
	definition.
	* doc/invoke.texi (-mabicalls): Update documentation.
	(-mshared): Document.

2006-03-21  Steve Ellcey  <sje@cup.hp.com>

	* config/ia64/unwind-hpux.c: New file.
	* config/ia64/t-hpux: Add unwind-hpux.c to libgcc.

2006-03-21  Steve Ellcey  <sje@cup.hp.com>

	PR libgomp/26384
	* config/pa/pa64-hpux.h (LIB_SPEC): Fix for -mt and -pthread options.

2006-03-21  Jeff Law  <law@redhat.com>

	* tree-vrp.c (extract_range_from_unary_expr): Derive ranges for
	type conversions of a VR_VARYING source to a wider type.

2006-03-21  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* config.gcc (i[34567]86-*-solaris2*): Add config/sol2-10.h to
	tm_file on Solaris 10 and later.
	(sparc64-*-solaris2*): Likewise.
	(sparc-*-solaris2*): Likewise.
	* config/sol26.h: Rename to config/sol2-6.h.
	* config/sol2-10.h: New file.

2006-03-21  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/26781
	* tree-ssa-pre.c (create_component_ref_by_pieces):
	Handle STRING_CST.

2006-03-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/26690
	* tree.c (get_callee_fndecl): If CALL is error_mark_node,
	return it immediately.

2006-03-21  Michael Matz  <matz@suse.de>

	* genautomata.c (<struct state>, num_out_arcs, presence_signature):
	New members.
	(remove_arc, add_arc): Update num_out_arcs member.
	(set_out_arc_insns_equiv_num): Returns nothing instead of number
	of out arcs.
	(cache_presence): New function.
	(compare_states_for_equiv): New function.
	(state_is_differed): Don't take number of outargs, adjust callers.
	Use new invariant for speeding up.
	(init_equiv_class): Create initial classes based on sorted
	input.
	(partition_equiv_class): Don't track out_arcs_num.
	(evaluate_equiv_classes): Call cache_presence on all states and
	sort them.

2006-03-21  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/bfin-protos.h (bfin_dsp_memref_p): Declare.
	* config/bfin/bfin.c (bfin_dsp_memref_p): New function.
	(bfin_valid_reg_p): Test for pseudos explicitly and use only
	REGNO_MODE_CODE_OK_FOR_BASE_P.  New args MODE and OUTER_CODE; all
	callers changed.
	* config/bfin/bfin.h (PREG_P): Use P_REGNO_P.
	(IREG_P, P_REGNO_P, I_REGNO_P): New macros.
	(enum reg_class, REG_CLASS_CONTENTS): Add IPREGS.
	(BASE_REG_CLASS, REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
	REGNO_OK_FOR_BASE_STRICT_P, REGNO_OK_FOR_BASE_NONSTRICT_P): Delete
	macros.
	(IREG_POSSIBLE_P, MODE_CODE_BASE_REG_CLASS,
	REGNO_MODE_CODE_OK_FOR_BASE_P): New macros.
	(REGNO_REG_CLASS): ARGP is in PREGS.
	* config/bfin/bfin.md (movhi_insn): Allow for addresses containing
	IREGS.
	(zero_extendhisi2, extendhisi2): Likewise; changed to define_and_split
	to deal with those addresses.
	* addresses.h: New file.
	* caller-save.c: Include "addresses.h".
	(init_caller_save): Use new base_reg_class function.
	* rtl-factoring.c: Include "addresses.h".
	(recompute_gain_for_pattern_seq): Use new function ok_for_base_p_1.
	* recog.c: Include "addresses.h".
	(preprocess_constraints): Use new base_reg_class function.
	* regrename.c: Include "addresses.h".
	(scan_rtx_address): Use new regno_ok_for_base_p and base_reg_class
	functions.  Keep track of a new var INDEX_CODE to compute valid
	classes.
	(replace_oldest_value_addr): Likewise.
	(replace_oldest_value_mem): Use base_reg_class.
	* reload.c: Include "addresses.h".
	(REGNO_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P): Delete macros.
	(find_reloads): Use new base_reg_class function.
	(find_reloads_address): Likewise; also use regno_ok_for_base_p.
	(find_reloads_address_1): Likewise. New args OUTER_CODE and INDEX_CODE;
	all callers and prototype changed.
	* reload1.c: Include "addresses.h".
	(maybe_fix_stack_asms): Use base_reg_class.
	* regclass.c: Include "addresses.h".
	(ok_for_index_p_nonstrict, ok_for_base_p_nonstrict): New functions.
	(init_reg_autoinc): Use new base_reg_class function.
	(record_reg_classes): Likewise.
	(record_address_regs): Delete arg CLASS; add args CONTEXT, MODE,
	OUTER_CODE and INDEX_CODE.  All callers and prototype changed.
	Use new args to compute necessary class.

	* Makefile.in (regclass.o, reload.o, reload1.o, caller-save.o, recog.o,
	regrename.o, rtl-factoring.o): Update dependencies.
	* doc/tm.texi (MODE_CODE_BASE_REG_CLASS): Document.
	(REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
	(REG_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_REG_BASE_P,
	REG_OK_FOR_INDEX_P): Delete documentation.

2006-03-21  Alexey Starovoytov  <alexey.starovoytov@sun.com>

	* config.gcc (sparc-*-solaris2*): Change the default CPU setting
	from V7 to V9 for Solaris 7 and above.

2006-03-21  Toon Moene  <toon@moene.indiv.nluug.nl>

	* doc/invoke.texi: Document new flag -fargument-noalias-anything.
	* tree-ssa-alias.c (may_alias_p): If flag_argument_noalias > 2,
	argument pointers may not alias any other storage.
	* common.opt: Define option -fargument-noalias-anything.
	* tree-ssa-structalias.c (intra_create_variable_infos): Fortran
	alias semantics is specified by flag_argument_noalias > 2.

2006-03-20  Jeff Law  <law@redhat.com>

	* tree-pass.h (pass_phi_only_copy_prop): Delete.
	(pass_phi_only_cprop): Declare.
	* passes.c (init_optimization_passes): Replace pass_phi_only_copy_prop
	with phi_only_cprop
	* tree-ssa-dom.c (degenerate_phi_result): New function.
	(remove_stmt_or_phi, get_lhs_or_phi_result): Likewise.
	(get_rhs_or_phi_arg, propagate_rhs_into_lhs): Likewise.
	(eliminate_const_or_copy, eliminate_degenerate_phis_1): Likewise.
	(eliminate_degenerate_phis): Likewise.
	(pass_phi_only_cprop): New pass descriptor.
	* tree-ssa-copy.c (init_copy_prop): Lose PHIS_ONLY argument and
	support code.  Callers updated.
	(execute_copy_prop, do_copy_prop): Likewise and corresponding changes.
	(store_copy_prop): Likewise.
	(do_phi_only_copy_prop, pass_phi_only_copy_prop): Remove.

2006-03-20  Jason Merrill  <jason@redhat.com>

	PR c++/21764
	* c-pragma.c (visstack): Move out of handle_pragma_visibility.
	(push_visibility, pop_visibility): Likewise.
	* c-pragma.h: Declare them.

2006-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/sh.c (untangle_mova): Initialize n_addr and n_target.

	* config/sh/sh.c (find_regmode_weight): Change the type of the first
	parameter and use get_ebb_head_tail.
	(sh_md_init_global): Adjust uses of find_regmode_weight.

2006-03-20  Steven Bosscher  <stevenb.gcc@gmail.com>

	* function.h (struct function) <x_tail_recursion_reentry>:
	Rename to x_stack_check_probe_note.
	(tail_recursion_reentry): Rename to stack_check_probe_note.
	* function.c: Replace tail_recursion_reentry with
	stack_check_probe_note everywhere.
	(expand_function_start): Only emit a note for
	stack_check_probe_note with -fstack-protect.
	* stmt.c (expand_case): Don't emit NOTE_INSN_DELETED notes.

	* emit-rtl.c (remove_unnecessary_notes): Remove.
	(pass_remove_unnecessary_notes): Remove.
	* rtl.h (remove_unnecessary_notes): Remove prototype.
	* final.c (final_start_function): Don't call remove_unnecessary_notes.
	* tree-pass.h (pass_remove_unnecessary_notes): Remove.
	* passes.c (pass_remove_unnecessary_notes): Don't run it.

2006-03-20  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/26629
	* tree-ssa-pre (phi_translate): Handle ARRAY_REF's operands.
	(valid_in_set): Handle ARRAY_REF.
	Change "if min_variant or VH" to asserts.
	(create_component_ref_by_pieces): Handle ARRAY_REF.
	(create_expression_by_pieces): Likewise.
	(can_PRE_operation): ARRAY_REFs can now be PRE'd.

2006-03-20  David Edelsohn  <edelsohn@gnu.org>

	* genpreds.c (write_insn_extra_address_constraint): Argument `c'
	is operand of switch, not str[0].

2006-03-20  Alan Modra  <amodra@bigpond.net.au>

	* config/rs6000/rs6000.c (rs6000_handle_option): Use
	TARGET_NO_FP_IN_TOC inside #ifdef TARGET_USES_SYSV4_OPT too.

2006-03-19  David Edelsohn  <edelsohn@gnu.org>

	* genpreds.c (write_tm_preds_h): Add semicolon and newline at
	end of insn_extra_address_constraint declaration.

2006-03-19  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.opt (no-fp-in-toc): Use Var not Mask.
	(no-sum-in-toc): Same.
	* config/rs6000/rs6000.c (rs6000_handle_option): Use new
	variables.
	* config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set
	NO_FP_IN_TOC for -fPIC instead of mask.

	* config/rs6000/t-aix43 (T_ADAFLAGS): Delete.
	(BOOT_LDFLAGS): Delete.
	(LDFLAGS): Delete.
	* config/rs6000/t-aix52: Same.

	* config/rs6000/rs6000.md (store_multiple_power): Delete.
	(stmsi[345678]_power): New.

2006-03-17  Steve Ellcey  <sje@cup.hp.com>

	* config/ia64/ia64.opt: Add empty line to end of file.

2006-03-17  Richard Guenther  <rguenther@suse.de>

	PR middle-end/26721
	* builtins.c (get_pointer_alignment): For component style references
	adjust alignment to the component type alignment.  Make sure
	to adjust alignment for component access of constants.

2006-03-17  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.md (strlensi): Emit barrier after
	unconditional jump.

2006-03-17  Paul Brook  <paul@codesourcery.com>

	* doc/install.texi: Docuemnt --with-mode.
	* config.gcc: Add --with-mode for arm*-*-*.
	* config/arm/arm.h (OPTION_DEFAULT_SPECS): Add "mode".

2006-03-17  J"orn Rennecke <joern.rennecke@st.com>

	* sh.c (max_labelno_before_reorg): New variable.
	(sh_reorg): Initialize it.
	(find_barrier): Check max_labelno_before_reorg before using
	label_to_alignment.  Take length of explicit alignment insns
	into account.  When seeing a UNSPECV_CONST_END, return it.

	* sh.c (fixup_mova): Set mode of affected label to QImode.
	(untangle_mova): New function.
	(find_barrier): Use it.  Check mode of label before decrementing
	num_mova.
	(sh_reorg): Likewise.
	Set mode of all insns back to VOIDmode.

	* sh.c (MOVA_LABELREF): New macro.
	(mova_p, fixup_mova, sh_reorg): Use it.
	(find_barrier, sh_reorg): Don't count num_mova back to 0 unless
	ADDR_DIFF_VEC matches mova.

2006-03-17  Steven Bosscher  <stevenb.gcc@gmail.com>

	* dwarf2asm.c (dw2_asm_output_offset): Mark 'base' argument
	with ATTRIBUTE_UNUSED.

2006-03-17  Alexandre Oliva  <aoliva@redhat.com>

	* dwarf2out.c (dwarf2out_stack_adjust): Always track the stack
	pointer, instead of assuming it is possible to derive the
	correct args size from a call insn.

2006-03-16  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

	* rtl.h (CONST_INT_P): Define.
	* config/vax/vax.c (print_operand_address): Use CONST_INT_P()
	instead of GET_CODE(x) == CONST_INT.
	(vax_rtx_costs): Likewise.
	(vax_output_int_move): Likewise.
	(vax_output_int_add): Likewise.
	(legitimate_constant_address_p): Likewise.
	(index_term_p): Likewise.
	* config/vax/vax.h (PRINT_OPERAND): Likewise.
	* config/vax/vax.md (and<mode>3): Likewise.
	(ashrsi3): Likewise.
	(extv): Likewise.
	(movstricthi): Likewise.
	(movstrictqi): Likewise.
	(rotrsi3): Likewise.
	(five unnamed insns): Likewise.

2006-03-16  Geoffrey Keating  <geoffk@apple.com>

	* doc/tm.texi (SDB and DWARF): Add extra parameter to
	ASM_OUTPUT_DWARF_OFFSET.  Use @var to indicate metavariables.
	* dwarf2asm.h (dw2_asm_output_offset): Add section parameter.
	* dwarf2asm.c (dw2_asm_output_offset): Add base section parameter.
	Pass to ASM_OUTPUT_DWARF_OFFSET.
	* dwarf2out.c (debug_frame_section): New.
	(output_call_frame_info): Use debug_frame_section.  Pass it to
	dw2_asm_output_offset.
	(output_die): Pass appropriate section to dw2_asm_output_offset.
	(output_compilation_unit_header): Likewise.
	(output_pubnames): Likewise.
	(output_aranges): Likewise.
	(enum dw_val_class): Break dw_val_class_lbl_offset into
	dw_val_class_lineptr and dw_val_class_macptr.
	(add_AT_lbl_offset): Delete.
	(add_AT_lineptr): New.
	(add_AT_macptr): New.
	(AT_lbl): Expect a lineptr or macptr.
	(print_die): Handle dw_val_class_lineptr and dw_val_class_macptr.
	(attr_checksum): Likewise.
	(same_dw_val_p): Likewise.
	(size_of_die): Likewise.
	(value_format): Likewise.
	(output_die): Likewise.
	(dwarf2out_finish): Call add_AT_lineptr and add_AT_macptr instead of
	add_AT_lbl_offset.
	* config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
	* config/i386/i386.c (x86_file_start): Call darwin_file_start.
	* config/darwin-protos.h (darwin_file_start): New.
	(darwin_asm_output_dwarf_offset): New.
	* config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
	* config/rs6000/rs6000.c (rs6000_darwin_file_start): Call
	darwin_file_start.
	* config/darwin.c (darwin_emit_unwind_label): Don't output label
	if not EH section; simplify.
	(darwin_file_start): New.
	(darwin_asm_output_dwarf_offset): New.
	* config/darwin.h (DEBUG_FRAME_SECTION): In __DWARF segment,
	mark as 'debug'.
	(DEBUG_INFO_SECTION): Likewise.
	(DEBUG_ABBREV_SECTION): Likewise.
	(DEBUG_ARANGES_SECTION): Likewise.
	(DEBUG_MACINFO_SECTION): Likewise.
	(DEBUG_LINE_SECTION): Likewise.
	(DEBUG_LOC_SECTION): Likewise.
	(DEBUG_PUBNAMES_SECTION): Likewise.
	(DEBUG_STR_SECTION): Likewise.
	(DEBUG_RANGES_SECTION): Likewise.
	(FRAME_BEGIN_LABEL): Must start with 'L' in debug section.
	(ASM_OUTPUT_DWARF_OFFSET): New.

2006-03-16  Joseph S. Myers  <joseph@codesourcery.com>

	* config.gcc (tm_defines): Always add to previous value rather
	than replacing it.

2006-03-16  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/predicates.md (splittable_const_int_operand): New,
	split from move_operand.
	(splittable_symbolic_operand): New.
	(move_operand): Add commentary.  Use splittable_const_int_operand.
	Inline mips_atomic_symbolic_constant_p.
	* config/mips/mips.md: Add combine splitters for handling moves
	of splittable_const_int_operands and splittable_symbolic_operands.
	* config/mips/mips-protos.h (mips_atomic_symbolic_constant_p): Delete.
	(mips_split_symbol): Declare.
	(mips_move_integer): Declare.
	* config/mips/mips.c (mips_split_p): Make global.
	(TARGET_MIN_ANCHOR_OFFSET): Override default.
	(TARGET_MAX_ANCHOR_OFFSET): Likewise.
	(TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
	(TARGET_USE_ANCHORS_FOR_SYMBOL_P): Likewise.
	(mips_offset_within_object_p): Handle block symbols.
	(mips_atomic_symbolic_constant_p): Delete.
	(mips_cannot_force_const_mem): Return false for constants that
	mips_legitimize_move can handle.
	(mips_use_blocks_for_constant_p): New function.
	(mips_split_symbol): Make global.
	(mips_move_integer): Likewise.  Add a temporary register argument.
	(mips_legitimize_const_move): Use splittable_const_int_operand and
	splittable_symbolic_operand.
	(mips_use_anchors_for_symbol_p): New function.
	* config/mips/mips.h: Protect externs with !USED_FOR_TARGET.
	(mips_split_p): Declare.

2006-03-16  Richard Sandiford  <richard@codesourcery.com>

	* config.gcc (mips64*-*-linux*): Keep existing tm_defines.
	(mips*-*-linux*): Likewise.

2006-03-16  Roger Sayle  <roger@eyesopen.com>
	    Daniel Speyer  <dspeyer@wam.umd.edu>

	PR middle-end/18259
	* tree-dump.c (dump_real): New function.
	(dequeue_and_dump) <REAL_CST>: Use it to dump FP constants.
	* Makefile.in (REAL_H): New macro for dependencies on real.h.
	(tree-dump.o): Add $(REAL_H) to the dependencies.

2006-03-16  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/21781
	* real.c (real_from_string): If the mantissa is zero, don't bother
	parsing the exponent as the result should always be zero.

2006-03-16  Andreas Krebbel  <krebbel1@de.ibm.com>

	* simplify-rtx.c (simplify_plus_minus): Simplify within CONST terms.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

	* config/ia64/ia64.c (stops_p): Added explicit initialization.
	(ia64_first_cycle_multipass_dfa_lookahead_guard_spec,
	ia64_h_i_d_extended, ia64_set_sched_flags, ia64_speculate_insn,
	ia64_needs_block_p, ia64_gen_check, ia64_sched_init_global,
	ia64_sched_finish_global): New static functions to implement
	hooks from gcc_target.sched.
	(spec_check_no, max_uid, pending_data_specs): New static variables.
	(ia64_mode_to_int, ia64_gen_spec_insn, ia64_spec_check_p,
	ia64_spec_check_src_p): New static functions.
	(ia64_adjust_cost): Renamed to ia64_adjust_cost_2.
	(TARGET_SCHED_ADJUST_COST): Removed.
	(TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_INIT_GLOBAL,
	TARGET_SCHED_FINISH_GLOBAL, TARGET_SCHED_H_I_D_EXTENDED,
	TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
	TARGET_SCHED_GEN_CHECK,
	TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
	TARGET_SCHED_SET_SCHED_FLAGS): New macros.
	(update_set_flags, group_barrier_needed, set_src_needs_barrier):
	Fixed to handle speculation checks.
	(rtx_needs_barrier): Fixed to handle speculative loads and
	their checks.
	(ia64_variable_issue): Added code to count speculative loads and their
	checks.
	(ia64_first_cycle_multipass_dfa_lookahead_guard): Fixed to handle
	speculative loads.
	(enum SPEC_MODES, enum SPEC_GEN_LD_MAP, SPEC_GEN_CHECK_OFFSET):
	New enumerations.
	(SPEC_GEN_EXTEND_OFFSET, SPEC_N, SPEC_GEN_CHECK_MUTATION_OFFSET):
	New constants.
	(ia64_ld_address_bypass_p): Fixed to handle speculative loads.
	(ia64_reorg): Reset stops_p to NULL after it is freed.
	* config/ia64/ia64.md (UNSPEC_LDA, UNSPEC_LDS, UNSPEC_LDSA,
	UNSPEC_LDCCLR, UNSPEC_CHKACLR, UNSPEC_CHKS): New constants.
	(itanium_class): chk_s renamed to chk_s_i.  New constants: chk_s_f,
	chk_a.
	(data_speculative, control_speculative, check_load): New attributes.
	(mov<mode>_advanced, mov<mode>_speculative,
	mov<mode>_speculative_advanced, zero_extend<mode>di2_advanced,
	zero_extend<mode>di2_speculative,
	zero_extend<mode>di2_speculative_advanced): New patterns for
	data and control speculative loads.
	(mov<mode>_clr, zero_extend<mode>di2_clr): New patterns for
	check loads.
	(advanced_load_check_clr_<mode>, speculation_check_<mode>):
	New pattern for data and control speculation checks.
	(MODE, MODE_FOR_EXTEND, output_a, output_s, output_sa, output_c_clr,
	ld_reg_constr, ldc_reg_constr, chk_reg_constr, mem_constr,
	reg_pred_prefix, ld_class, chka_class, chks_class, attr_yes):
	Auxiliary definitions for the patterns.
	* config/ia64/itanium1.md (1_fldc, 1_fldpc, 1_ldc, 1_chk_s_f, 1_chk_a,
	1b_fldc, 1b_fldpc, 1b_ldc, 1b_chk_s_f, 1b_chk_a): New resource
	constraints.
	(1_fld, 1_fldp, 1_ld, 1b_fld, 1b_fldp, 1b_ld): Add a condition
	for speculation.
	(1_chk_s, 1b_chk_s): Renamed to 1_chk_s_i, 1b_chk_s_i.
	* config/ia64/itanium2.md (2_flda, 2_fldc, 2_fldpc, 2_ldc, 2_chk_s_f,
	2_chk_a, 2b_flda, 2b_fldc, 2b_fldpc, 2b_ldc, 2b_chk_s_f, 2b_chk_a):
	New resource constraints.
	(2_fld, 2_fldp, 2_ld, 2b_fld, 2b_fldp, 2b_ld): Add a condition
	for speculation.
	(2_chk_s, 2b_chk_s): Renamed to 2_chk_s_i, 2b_chk_s_i.
	* config/ia64/ia64.opt (msched-br-data-spec, msched-ar-data-spec,
	msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
	msched-in-control-spec, msched-ldc, msched-control-ldc,
	msched-spec-verbose, msched-prefer-non-data-spec-insns,
	msched-prefer-non-control-spec-insns,
	msched-count-spec-in-critical-path): New flags to tune speculative
	scheduling.
	* doc/invoke.texi (msched-br-data-spec, msched-ar-data-spec,
	msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
	msched-in-control-spec, msched-ldc, msched-control-ldc,
	msched-spec-verbose, msched-prefer-non-data-spec-insns,
	msched-prefer-non-control-spec-insns,
	msched-count-spec-in-critical-path): Document new flags.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

	* target.h (struct spec_info_def): New opaque declaration.
	(struct gcc_target.sched): New fields: adjust_cost_2, h_i_d_extended,
	speculate_insn, needs_block_p, gen_check,
	first_cycle_multipass_dfa_lookahead_guard_spec, set_sched_flags.
	* target-def.h (TARGET_SCHED_ADJUST_COST_2,
	TARGET_SCHED_H_I_D_EXTENDED, TARGET_SCHED_SPECULATE_INSN,
	TARGET_SCHED_NEEDS_BLOCK_P, TARGET_SCHED_GEN_CHECK,
	TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
	TARGET_SCHED_SET_SCHED_FLAGS): New macros to initialize fields in
	gcc_target.sched.
	(TARGET_SCHED): Use new macros.
	* rtl.h (copy_DEPS_LIST_list): New prototype.
	* sched-int.h (struct sched_info): Change signature of new_ready field,
	adjust all initializations. New fields: add_remove_insn,
	begin_schedule_ready, add_block, advance_target_bb, fix_recovery_cfg,
	region_head_or_leaf_p.
	(struct spec_info_def): New structure declaration.
	(spec_info_t): New typedef.
	(struct haifa_insn_data): New fields: todo_spec, done_spec, check_spec,
	recovery_block, orig_pat.
	(glat_start, glat_end): New variables declaraions.
	(TODO_SPEC, DONE_SPEC, CHECK_SPEC, RECOVERY_BLOCK, ORIG_PAT):
	New access macros.
	(enum SCHED_FLAGS): New constants: SCHED_RGN, SCHED_EBB,
	DETACH_LIFE_INFO, USE_GLAT.
	(enum SPEC_SCHED_FLAGS): New enumeration.
	(NOTE_NOTE_BB_P): New macro.
	(extend_dependency_caches, xrecalloc, unlink_bb_notes, add_block,
	attach_life_info, debug_spec_status, check_reg_live): New functions.
	(get_block_head_tail): Change signature to get_ebb_head_tail, adjust
	all uses in ddg.c, modulo-sched.c, haifa-sched.c, sched-rgn.c,
	sched-ebb.c
	(get_dep_weak, ds_merge): Prototype functions from sched-deps.c .
	* ddg.c (get_block_head_tail): Adjust all uses.
	* modulo-sched.c (get_block_head_tail): Adjust all uses.
	(sms_sched_info): Initialize new fields.
	(contributes_to_priority): Removed.
	* haifa-sched.c (params.h): New include.
	(get_block_head_tail): Adjust all uses.
	(ISSUE_POINTS): New macro.
	(glat_start, glat_end): New global variables.
	(spec_info_var, spec_info, added_recovery_block_p, nr_begin_data,
	nr_be_in_data, nr_begin_control, nr_be_in_control, bb_header,
	old_last_basic_block, before_recovery, current_sched_info_var,
	rgn_n_insns, luid): New static variables.
	(insn_cost1): New function.  Move logic from insn_cost to here.
	(find_insn_reg_weight1): New function.  Move logic from
	find_insn_reg_weight to here.
	(reemit_notes, move_insn, max_issue): Change signature.
	(move_insn1): Removed.
	(extend_h_i_d, extend_ready, extend_global, extend_all, init_h_i_d,
	extend_bb): New static functions to support extension of scheduler's
	data structures.
	(generate_recovery_code, process_insn_depend_be_in_spec,
	begin_speculative_block, add_to_speculative_block,
	init_before_recovery, create_recovery_block, create_check_block_twin,
	fix_recovery_deps): New static functions to support
	generation of recovery code.
	(fix_jump_move, find_fallthru_edge, dump_new_block_header,
	restore_bb_notes, move_block_after_check, move_succs): New static
	functions to support ebb scheduling.
	(init_glat, init_glat1, attach_life_info1, free_glat): New static
	functions to support handling of register live information.
	(associate_line_notes_with_blocks, change_pattern, speculate_insn,
	sched_remove_insn, clear_priorities, calc_priorities, bb_note,
	add_jump_dependencies):	New static functions.
	(check_cfg, has_edge_p, check_sched_flags): New static functions for
	consistancy checking.
	(debug_spec_status): New function to call from debugger.
	(priority): Added code to handle speculation checks.
	(rank_for_schedule): Added code to distinguish speculative instructions.
	(schedule_insn): Added code to handle speculation checks.
	(unlink_other_notes, rm_line_notes, restore_line_notes, rm_other_notes):
	Fixed to handle ebbs.
	(move_insn): Added code to handle ebb scheduling.
	(max_issue): Added code to use ISSUE_POINTS of instructions.
	(choose_ready): Added code to choose between speculative and
	non-speculative instructions.
	(schedule_block): Added code to handle ebb scheduling and scheduling of
	speculative instructions.
	(sched_init): Initialize new variables.
	(sched_finish): Free new variables.  Print statistics.
	(try_ready): Added code to handle speculative instructions.
	* lists.c (copy_DEPS_LIST_list): New function.
	* sched-deps.c (extend_dependency_caches): New function.  Move logic
	from create_dependency_caches to here.
	(get_dep_weak, ds_merge): Make global.
	* genattr.c (main): Code to output prototype for
	dfa_clear_single_insn_cache.
	* genautomata.c (DFA_CLEAR_SINGLE_INSN_CACHE_FUNC_NAME): New macros.
	(output_dfa_clean_insn_cache_func): Code to output
	dfa_clear_single_insn_cache function.
	* sched-ebb.c (target_n_insns): Remove.  Adjust all users to use
	n_insns.
	(can_schedule_ready_p, fix_basic_block_boundaries, add_missing_bbs):
	Removed.
	(n_insns, dont_calc_deps, ebb_head, ebb_tail, last_bb):
	New static variables.
	(begin_schedule_ready, add_remove_insn, add_block1, advance_target_bb,
	fix_recovery_cfg, ebb_head_or_leaf_p): Implement hooks from
	struct sched_info.
	(ebb_sched_info): Initialize new fields.
	(get_block_head_tail): Adjust all uses.
	(compute_jump_reg_dependencies): Fixed to use glat_start.
	(schedule_ebb): Code to remove unreachable last block.
	(schedule_ebbs): Added code to update register live information.
	* sched-rgn.c (region_sched_info): Initialize new fields.
	(get_block_head_tail): Adjust all uses.
	(last_was_jump): Removed.  Adjust users.
	(begin_schedule_ready, add_remove_insn, insn_points, extend_regions,
	add_block1, fix_recovery_cfg, advance_target_bb, region_head_or_leaf_p):
	Implement new hooks.
	(check_dead_notes1): New static function.
	(struct region): New fields: dont_calc_deps, has_real_ebb.
	(RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB): New access macros.
	(BB_TO_BLOCK): Fixed to handle EBBs.
	(EBB_FIRST_BB, EBB_LAST_BB): New macros.
	(ebb_head): New static variable.
	(debug_regions, contributes_to_priority): Fixed to handle EBBs.
	(find_single_block_regions, find_rgns, find_more_rgns): Initialize
	new fields.
	(compute_dom_prob_ps): New assertion.
	(check_live_1, update_live_1): Fixed to work with glat_start instead of
	global_live_at_start.
	(init_ready_list): New assertions.
	(can_schedule_ready_p): Split update code to begin_schedule_ready.
	(new_ready): Add support for BEGIN_CONTROL speculation.
	(schedule_insns): Fixed code that updates register live information
	to handle EBBs.
	(schedule_region): Fixed to handle EBBs.
	(init_regions): Use extend_regions and check_dead_notes1.
	* params.def (PARAM_MAX_SCHED_INSN_CONFLICT_DELAY,
	PARAM_SCHED_SPEC_PROB_CUTOFF): New parameters.
	* doc/tm.texi (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_H_I_D_EXTENDED,
	TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
	TARGET_SCHED_GEN_CHECK,
	TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
	TARGET_SCHED_SET_SCHED_FLAGS): Document.
	* doc/invoke.texi (max-sched-insn-conflict-delay,
	sched-spec-prob-cutoff): Document.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

	* sched-int.h (struct haifa_insn_data): New fields: resolved_deps,
	inter_tick, queue_index.
	(struct sched_info): Change signature of init_ready_list field.
	Adjust all initializations.
	(RESOLVED_DEPS): New access macro.
	(ready_add): Remove prototype.
	(try_ready): Add prototype.
	* sched-rgn.c (init_ready_list): Use try_ready.
	(schedule_region): Initialize
	current_sched_info->{sched_max_insns_priority, queue_must_finish_empty}.
	* sched-ebb.c (new_ready): Remove.  Adjust ebb_sched_info.
	(init_ready_list): Use try_ready.
	(schedule_ebb): Initialize current_sched_info->sched_max_insns_priority.
	* lists.c (remove_list_elem): Remove `static'.
	(remove_free_INSN_LIST_elem): New function.
	* rtl.h (remove_list_elem, remove_free_INSN_LIST_elem): Add prototypes.
	* haifa-sched.c (INTER_TICK, QUEUE_INDEX): New macros.
	(INVALID_TICK, MIN_TICK, QUEUE_SCHEDULED, QUEUE_NOWHERE, QUEUE_READY):
	New constants.
	(readyp): New variable.
	(queue_remove, ready_remove_insn, fix_inter_tick, fix_tick_ready,
	change_queue_index, resolve_dep): New static functions.
	(try_ready): New function.  Adjust callers in sched-rgn.c and
	sched-ebb.c to use it instead of ready_add.
	(clock_var): Move at the begining of file.
	(rank_for_schedule): Fix typo.
	(queue_insn): Add assertion.  Handle QUEUE_INDEX.
	(ready_lastpos): Enforce assertion.
	(ready_add): Make it static.  Handle QUEUE_INDEX.  Add new argument,
	update all callers.
	(ready_remove_first, ready_remove): Handle QUEUE_INDEX.
	(schedule_insn): Rewrite to use try_ready and resolve_dep.
	(queue_to_ready): Use free_INSN_LIST_list.
	(early_queue_to_ready): Fix typo.
	(schedule_block): Init readyp.  Move init_ready_list call after the
	initialization of clock_var.  Fix error in rejecting insn by
	targetm.sched.dfa_new_cycle.  Add call to fix_inter_tick.  Remove code
	that previously	corrected INSN_TICKs.  Add code for handling
	QUEUE_INDEX.
	(set_priorities): Fix typo.
	(sched_init): Initialize INSN_TICK, INTER_TICK and QUEUE_INDEX.
	Clarify comment and code that keeps current_sched_info->next_tail
	non-null.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

	* sched-rgn.c (extend_rgns): New static function.
	(find_rgns): Use it.
	(gather_region_statistics, print_region_statistics): New static
	functions.
	* params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): New parameter.
	* doc/invoke.texi (max-sched-extend-regions-iters): Document.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
	    Andrey Belevantsev <abel@ispras.ru>

	* ddg.c (build_intra_loop_deps): Adjust add_forward_dependence call.
	* lists.c (unused_deps_list): New variable.
	(free_list): Add assertions to verify the proper distinguishing
	between INSN_LISTs and DEPS_LISTs.
	(find_list_elem, remove_list_elem, remove_list_node): New static
	functions.
	(alloc_DEPS_LIST, free_DEPS_LIST, free_DEPS_LIST_node,
	remove_free_INSN_LIST_elem, remove_free_DEPS_LIST_elem,
	remove_free_INSN_LIST_node, remove_free_DEPS_LIST_node): New functions.
	(alloc_INSN_LIST): Assert that the list we're working on is indeed
	an INSN_LIST.
	(free_INSN_LIST_node): Likewise.
	* modulo-sched.c (current_sched_info): Initialize flags field.
	* reg-notes.def: Exchange DEP_ANTI and DEP_OUTPUT.
	* rtl.def (DEPS_LIST): Define.
	* rtl.h: Declare new functions from lists.c.
	* sched-deps.c (spec_dependency_cache): New static variable.
	(maybe_add_or_update_back_dep_1, add_back_dep): New static functions.
	(add_dependence): Change return type to void.  Move the logic to ...
	(add_or_update_back_dep_1): ... here.  Handle speculative dependencies.
	(delete_all_dependences): Add comment about forward_dependency_cache.
	Handle spec_dependency_cache.  Handle DEPS_LISTs.
	(fixup_sched_groups): Clarify the change of priority of output
	and anti dependencies.
	(sched_analyze_2): Adjust add_dependence calls to create data
	speculative dependence.
	(add_forward_dependence): Renamed to add_forw_dep, change prototype.
	Adjust all callers.  Handle DEPS_LISTS.
	(compute_forward_dependences): Use add_forw_dep.  Sort LOG_LINKs in
	presence of speculation.
	(init_dependency_caches, free_dependency_caches):
	Handle spec_dependency_cache.
	(adjust_add_sorted_back_dep, adjust_back_add_forw_dep, delete_forw_dep,
	estimate_dep_weak, get_dep_weak, ds_merge, check_dep_status):
	New static functions.
	(add_or_update_back_dep, add_or_update_back_forw_dep,
	add_back_forw_dep, delete_back_forw_dep): New functions.
	* sched-int.h (ds_t, dw_t): New typedefs.
	(struct sched_info): Add new field flags.
	(struct haifa_insn_data): Add new bitfield has_internal_dep.
	Prototype new sched-deps.c functions.
	(HAS_INTERNAL_DEP, DEP_STATUS): New access macros.
	(BITS_PER_DEP_STATUS, BITS_PER_DEP_WEAK, DEP_WEAK_MASK, MAX_DEP_WEAK,
	MIN_DEP_WEAK, NO_DEP_WEAK, UNCERTAIN_DEP_WEAK, BEGIN_DATA, BE_IN_DATA,
	BEGIN_CONTROL, BE_IN_CONTROL, BEGIN_SPEC, DATA_SPEC, CONTROL_SPEC,
	SPECULATIVE, BE_IN_SPEC, FIRST_SPEC_TYPE, LAST_SPEC_TYPE,
	SPEC_TYPE_SHIFT, DEP_TRUE, DEP_OUTPUT, DEP_ANTI, DEP_TYPES, HARD_DEP):
	New constants.
	(enum SPEC_TYPES_OFFSETS, enum DEPS_ADJUST_RESULT, enum SCHED_FLAGS):
	New enums.
	* sched-rgn.c (current_sched_info): Initialize flags field.
	(schedule_insns): Initialize current_sched_info before the sched_init
	call.
	* sched-ebb.c (current_sched_info): Initialize flags field.
	(add_deps_for_risky_insns): Use control_flow_insn_p instead of JUMP_P.
	Call add_or_update_back_dep instead of add_dependence.
	Create control speculative dependencies.
	(schedule_insns): Initialize current_sched_info before the sched_init
	call.

2006-03-16  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/linux-unwind.h (shmedia_fallback_frame_state): Set
	fs->signal_frame.
	(sh_fallback_frame_state): Likewise.

2006-03-15  Geoffrey Keating  <geoffk@apple.com>

	* config.gcc (*-*-darwin*): Don't build crt2.o for all Darwin ports.
	Do switch on default_use_cxa_atexit.
	(powerpc*-*-darwin*): Build crt2.o on powerpc.
	* config/darwin-crt3.o: New.
	* config/darwin.h (LINK_SPEC): If -shared-libgcc, make linker default
	to 10.3.  Pass '-multiply_defined suppress' if crt3.o is in use.
	(STARTFILE_SPEC): Add crt3.o when -shared-libgcc and appropriate
	OS version.
	* config/rs6000/t-darwin: Move crt2.o building to here.
	* config/rs6000/darwin.h (C_COMMON_OVERRIDE_OPTIONS): Update
	Mac OS version for using __cxa_get_exception_ptr.  Don't test versions
	of __cxa_atexit.

2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

	* config/vax/vax.c (nonindexed_address_p): Change logical negation
	from '! xxx' to '!xxx' for coding-style conformance.
	* config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Likewise.
	(EXTRA_CONSTRAINT): Likewise.
	* config/vax/vax.md (four unnamed insns): Likewise.

2006-03-15  Paul Brook  <paul@codesourcery.com>

	* config/arm/arm.c (minipool_pad): New.
	(add_minipool_forward_ref): Include pool alignment padding in address
	calculation.
	(push_minipool_fix): Set minipool_pad.
	(minipool_pad): Ditto.

2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

	* config/vax/vax.c (split_quadword_operands): Use MEM_P()
	instead of GET_CODE() == MEM and REG_P() instead of
	GET_CODE() == REG.
	(print_operand_address): Likewise.
	(vax_address_cost): Likewise.
	(vax_rtx_costs): Likewise.
	(vax_notice_update_cc): Likewise.
	(vax_output_int_add): Likewise.
	(INDEX_REGISTER_P): Likewise.
	(BASE_REGISTER_P): Likewise.
	(nonindexed_address_p): Likewise.
	(vax_mode_dependent_address_p): Likewise.
	* config/vax/vax.h (EXTRA_CONSTRAINT): Likewise.
	(PRINT_OPERAND): Likewise.
	* config/vax/vax.md (ashlsi3): Likewise.
	(ashlsi3): Likewise.
	(some more unnamed insns): Likewise.

2006-03-15  Kazu Hirata  <kazu@codesourcery.com>

	* tree-ssa-dce.c (EXECUTE_IF_CONTROL_DEPENDENT): Make it an
	iterator-style macro.
	(mark_control_dependent_edges_necessary): Update the use of
	EXECUTE_IF_CONTROL_DEPENDENT.

2006-03-15  J"orn Rennecke <joern.rennecke@st.com>

	* config/sh/predicates.md (cache_address_operand): Special.
	(ua_address_operand): Likewise.

2006-03-15  Zdenek Dvorak <dvorakz@suse.cz>

	* haifa-sched.c (unlink_other_notes, reemit_notes): Do not handle
	loop notes.
	* sched-deps.c (sched_analyze_insn, sched_analyze): Ditto.

2006-03-15  Andreas Schwab  <schwab@suse.de>

	* gensupport.c (identify_predicable_attribute): Don't free p_false
	when it is still in use.

2006-03-15  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* config.gcc (default with_cpu setting) <sparc*-*-*>: Do not modify
	the default setting here.

2006-03-14  Steven Bosscher  <stevenb.gcc@gmail.com>

	* tree-pass.h (pass_cfg): Remove.
	* alias.c (rest_of_handle_cfg, pass_cfg): Remove.
	* passes.c (pass_cfg): Don't run it.

2006-03-14  Kazu Hirata  <kazu@codesourcery.com>

	* Makefile.in (reg-stack.o): Don't depend on gt-reg-stack.h.
	* reg-stack.c (stack_regs_mentioned_data): Change the type to
	VEC(char,heap) *.
	(stack_regs_mentioned): Update the uses of
	stack_regs_mentioned_data.  Don't access the array beyond its
	end.
	(reg_to_stack): Update the uses of stack_regs_mentioned_data.
	Don't include gt-reg-stack.h.

	* config/bfin/bfin.h (UNALIGNED_WORD_ASM_OP): Remove.
	* system.h (UNALIGNED_WORD_ASM_OP): Poison.

	* combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): Remove.

	PR middle-end/26684
	* reg-stack.c (stack_regs_mentioned_data): Put it undef #ifdef
	STACK_REGS.

2006-03-14  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Fix typo.

2006-03-14  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26672
	* tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
	SSA form.

2006-03-14  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26667
	* ipa-inline.c (cgraph_check_inline_limits): Walk the correct
	node for the callees.  Always allow inlining if it will shrink
	the function size.

2006-03-14  Richard Guenther  <rguenther@suse.de>

	PR middle-end/26659
	* builtins.c (get_pointer_alignment): Prefer alignment
	information from decls over that from types.

2006-03-14  Andrew Pinski  <pinskia@physics.uc.edu>

	PR target/26657
	* config/darwin.h (LINK_COMMAND_SPEC): Handle -fopenmp.

2006-03-14  Joseph S. Myers  <joseph@codesourcery.com>

	* config/rs6000/rs6000.opt (mdlmzb): New option.
	(msched-prolog, msched-epilog): Use Var not Mask.
	* doc/invoke.texi (-mdlmzb): Document.
	* config/rs6000/rs6000.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
	MASK_SCHED_PROLOG.
	(rs6000_override_options): Enable -mdlmzb for 405 and 440.
	* config/rs6000/rs6000.md: Add dlmzb support for 405 and 440.

2006-03-13  Uttam Pawar  <uttamp@us.ibm.com>

	PR rtl-optimization/25739
	* bt-load.c (augment_live_range): Free tos pointer.

	* gensupport.c (identify_predicable_attribute): Free
	p_false pointer.
	* gcov.c (create_file_names): Free name pointer.

2006-03-13  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/26557
	* stmt.c (emit_case_nodes): Handle the case where the index is a
	CONST_INT, where the comparison mode is specified by the index type.

2006-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Define when CRTSTUFFS_O
	is defined.

2006-03-13  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
	(*branch_fp_inverted): Likewise.

2006-03-13  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/25989
	* omp-low.c (expand_omp_for_generic): Mark istart0
	and iend0 as addressable.

2006-03-13  Jie Zhang  <jie.zhang@analog.com>

	* config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.

2006-03-13  Jeff Law  <law@redhat.com>

	* tree-vrp.c (stmt_interesting_for_vrp): Some statements with
	virtual operands are interesting.
	(vrp_visit_stmt): Corresponding changes.

2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
	of RETS.
	* config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
	TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
	* config/bfin/crti.S: Use it instead of __PIC__.
	* config/bfin/crtn.S: Likewise.

	* config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
	call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
	not if flag_pic.
	Lose 'G' modifier for call operand.
	* config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
	recognize 'G' modifier.

2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>

	PR middle-end/18859
	* gimplify.c (gimplify_switch_expr): Discard empty ranges.
	* stmt.c (expand_case): Likewise.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/26254
	* loop-invariant.c (seq_insns_valid_p): New function.
	(move_invariant_reg): Only emit new code if it is valid.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

	* cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
	Removed.
	(force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
	(rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
	(commit_one_edge_insertion): Do not look for loop notes.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

	* jump.c (follow_jumps): Do not check for loop notes.  Move check for
	flag_test_coverage out of loop.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

	* final.c (shorten_branches): Remove outdated comment, and turn
	the if branch that guards it to continue.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

	* cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
	* cfgloop.h (struct loop): Remove unused fields.

2006-03-13  Kazu Hirata  <kazu@codesourcery.com>

	* doc/invoke.texi (-fdump-rtl-loop): Remove.
	(-dL, -fdump-rtl-loop2): Update the dump file names

	* doc/invoke.texi: Update dump file names.

2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>

	* predict.c (estimate_probability): Remove.
	* profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
	* basic-block.h (estimate_probability): Remove prototype.
	* passes.c (finish_optimization_passes): Dump branch prediction or
	profiling heuristics to the .profile tree dump.
	(init_optimization_passes): Unqueue pass_branch_prob.

	* doc/invoke.texi (-fdump-rtl-bp): Remove.

2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>

	* rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
	* rtl.h (LABEL_NEXTREF): Remove field accessor.

2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>

	* function.h (frame_offset_overflow): Declare.
	* function.c (frame_offset_overflow): New function.
	(assign_stack_local_1): Call it to detect that the offset overflows.
	* cfgexpand.c (alloc_stack_frame_space): Likewise.

2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>

	* config/sh/sh.c: Include alloc-pool.h.
	(label_ref_list_pool): New alloc pool.
	(label_ref_list_t): New type for lists of labels.
	(struct pool_node): Make wend a label_ref_list_t.
	(add_constant): Use the new type, eradicate LABEL_NEXTREF
	references.
	(dump_table): Likewise.
	(sh_reorg): Set up the alloc pool before using add_constant and
	dump_table, and destroy it when finishing.

2006-03-11  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips.c: Remove redundant comment.

2006-03-10  Jason Merrill  <jason@redhat.com>

	PR c/26004
	* gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if
	the target was declared 'register'.

2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>

	* genpreds.c (write_insn_constraint_len): Change definition of
	insn_constraint_len to return size_t to match the declaration.

2006-03-10  DJ Delorie  <dj@redhat.com>

	* config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
	start at zero.
	(m32c_expand_insv): Fix test for an AND mask.

2006-03-10  Richard Guenther  <rguenther@suse.de>

	PR middle-end/26565
	* builtins.c (get_pointer_alignment): Handle component
	references for field alignment.

2006-03-10  J"orn Rennecke <joern.rennecke@st.com>

	* config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
	when building with libgloss.
	(sh*elf): Implement --without-fp option.
	(sh64-superh-linux*): Don't multilib.

2006-03-10  J"orn Rennecke <joern.rennecke@st.com>

	* struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.

2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>

	* tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
	Set it when one of the replacement functions returned true.
	Return TODO_cleanup_cfg if cfgchanged is true.
	(pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.

2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>

	* combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
	instead of gen_lowpart.

2006-03-09  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips-protos.h (mips_output_conditional_branch): Change
	interface.
	(mips_output_order_conditional_branch): Declare.
	* config/mips/mips.h (MIPS_BRANCH): New macro.
	* config/mips/mips.c (gen_conditional_branch): Use VOIDmode
	for the comparison.  Use gen_condjump.
	(mips_output_conditional_branch): Rework interface to take the
	asm templates for a direct branch and the inverse of a direct branch.
	(mips_output_order_conditional_branch): New function.
	(mips_builtin_branch_and_move): New function.
	(mips_expand_builtin_compare): Use it.  Use VOIDmode for the
	branch condition.  Use gen_single_cc as the condition for
	__builtin_mips_upper_* or __builtin_mips_lower_*.
	(mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
	Use VOIDmode for the branch condition.
	* config/mips/predicates.md (order_operator): New predicate.
	* config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
	(branch_fp): Rename to...
	(*branch_fp): ...this.  Remove mode from comparison operator.
	Use new mips_output_conditional_branch interface.
	(branch_fp_inverted): Rename to...
	(*branch_fp_inverted): ...this and update as for *branch_fp.
	(*branch_zero<mode>): Rename to...
	(*branch_order<mode>): ...this.  Remove mode from comparison operator.
	Use mips_output_order_conditional_branch.  Only accept ordered
	comparisons.
	(*branch_zero<mode>_inverted): Rename to...
	(*branch_order<mode>_inverted): ...this and update as for
	*branch_order<mode>.
	(*branch_equality<mode>): Accept zero as the second operand to
	the equality operator.  Use the new mips_output_conditional_branch
	interface.
	(*branch_equality<mode>_inverted): Likewise.
	(condjump): New expander.
	* config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
	operator.
	* config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
	(bc1any2t, bc1any2f): Likewise.
	(single_cc): New expander.
	(*branch_upper_lower, *branch_upper_lower_inverted): New patterns.

2006-03-09  Richard Sandiford  <richard@codesourcery.com>

	* doc/md.texi: Update documentation of MIPS constraints.
	* config/mips/constraints.md: New file.
	* config/mips/mips.md: Include it.
	* config/mips/mips.c (mips_char_to_class): Delete.
	(override_options): Don't initialize mips_char_to_class.
	* config/mips/mips.h (mips_char_to_class): Delete.
	(REG_CLASS_FROM_LETTER): Delete.
	(CONST_OK_FOR_LETTER_P): Delete.
	(CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
	(EXTRA_CONSTRAINT_Y): Delete.
	(EXTRA_CONSTRAINT_STR): Delete.
	(CONSTRAINT_LEN): Delete.
	(EXTRA_MEMORY_CONSTRAINT): Delete.

2006-03-09  Diego Novillo  <dnovillo@redhat.com>

	* tree-cfg.c (move_block_to_fn): Remove the statements from the
	original fn's eh regions.

2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>

	* fold-const.c (build_range_check): Make sure to use a valid type to
	apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
	transformation.

	(range_predecessor): New static function.
	(range_successor): Likewise.
	(merge_ranges): Use them to compute predecessors and successors of
	range bounds.

2006-03-09  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/26561
	* fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
	X op C3, consider whether C3 overflows towards +Inf or -Inf.

2006-03-08  DJ Delorie  <dj@redhat.com>

	* config/m32c/addsub.md (addqi3): Disparage a0/a1.
	(addpsi3): Expand to include memory operands.  Remove
	reload-specific splits.
	* config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
	(andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
	(andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
	(andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
	(shift1_qi, shift1_hi, insv): New.
	* config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
	(cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
	cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
	cond_to_int): New.
	* config/m32c/m32c-protos.h: Update as needed.
	* config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
	default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
	Fail for unrecognized R* constraints.
	(m32c_cannot_change_mode_class): Be more picky about pseudos.
	(m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
	(m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
	Add Sp constraint.
	(m32c_init_libfuncs): New.
	(m32c_legitimate_address_p): Add debug wrapper.
	(m32c_rtx_costs): New.
	(m32c_address_cost): New.
	(conversions): Add 'B' prefix.
	(m32c_print_operand): 'h' and 'H' pick lower and upper halves of
	operands, or word regnames for QI operands.  'B' prints bit
	position.
	(m32c_expand_setmemhi): New.
	(m32c_expand_movmemhi): New.
	(m32c_expand_movstr): New.
	(m32c_expand_cmpstr): New.
	(m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
	(m32c_expand_neg_mulpsi3): Handle non-ints.
	(m32c_cmp_flg_0): New.
	(m32c_expand_movcc): New.
	(m32c_expand_insv): New.
	(m32c_scc_pattern): New.
	* config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
	a0/a1 out of SIregs.
	(STORE_FLAG_VALUE): New.
	* config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
	code macros.
	(no_insn): New.
	* config/m32c/mov.md: Make constraints more liberal.
	(zero_extendqihi2): Optimize r0/r1 case.
	* config/m32c/muldiv.md (mulpsi3): Check for intvals.
	* config/m32c/predicates.md (m32c_any_operand): New.
	(m32c_nonimmediate_operand): New.
	(m32c_hl_operand): New.
	(m32c_r3_operand): New.
	(ap_operand): New.
	(ma_operand): New.
	(memsym_operand): New.
	(memimmed_operand): New.
	(a_qi_operand): New.
	(m32c_eqne_operator): New.
	(m32c_1bit8_operand): New.
	(m32c_1bit16_operand): New.
	(m32c_1mask8_operand): New.
	(m32c_1mask16_operand): New.
	* config/m32c/blkmov.md: New file.
	* config/m32c/t-m32c (MD_FILES): Add blkmov.

2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>

	* dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
	unsigned to fix signed/unsigned comparison issue in
	DWARF2_FRAME_REG_OUT.
	(expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
	unsigned comparison issue in DWARF2_FRAME_REG_OUT.

	* tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
	of ptr into the ENABLE_CHECKING section.

2006-03-08  Jeff Law  <law@redhat.com>

	* tree-vrp.c (infer_value_range): Only count pointer uses
	and dereferences if -fdelete-null-pointer-checks is enabled.

	* tree-vrp.c (find_assert_locations): Infer value ranges for
	single use pointers, but do not create ASSERT_EXPRs for them.
	When a non-null range is inferred for a pointer, backwards
	propagate that range to other equivalent pointers through the
	use-def chain.

2006-03-08  Paolo Bonzini  <bonzini@gnu.org>

	PR bootstrap/26500
	* Makefile.in (dvi, html, install-info): Invoke the corresponding
	language hook targets.
	* ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
	objcp/Make-lang.in: Create stub rules for dvi, html, install-info
	if language hook targets were missing.

2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-ssa-opfinalize.h: Removed.
	* Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
	dependency.
	* tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
	(ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
	INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
	add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
	finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
	finalize_ssa_v_must_def_ops): New.

2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>

	* df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
	block as parameter.

2006-03-07  Geoffrey Keating  <geoffk@apple.com>

	* varasm.c (assemble_end_function): Say that 'fnname' is unused.

	* config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
	addresses with offsets; reorganize.

	* dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
	(expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
	(expand_builtin_init_dwarf_reg_sizes): Likewise.

2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>

	PR target/26588
	* config/i386/cygwin.h (GOMP_SELF_SPECS): Define.

2006-03-08  Ben Elliston  <bje@au.ibm.com>

	* config/fp-bit.h (CMPtype): Typedef to a word mode integer.

2006-03-07  Aldy Hernandez  <aldyh@redhat.com>

	PR gomp/26238
	* doc/passes.texi (Tree-SSA passes): Document omp lowering and
	expansion.

2006-03-07  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26587
	* tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.

2006-03-07  Richard Sandiford  <richard@codesourcery.com>

	* varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.

2006-03-07  Richard Sandiford  <richard@codesourcery.com>

	* hooks.c (hook_bool_mode_rtx_true): New function.
	* hooks.h (hook_bool_mode_rtx_true): Declare.
	* toplev.c (compile_file): Call output_shared_constant_pool.
	* varasm.c (shared_constant_pool): New variable.
	(assemble_start_function, assemble_end_function): Remove arguments
	from call to output_constant_pool.
	(create_constant_pool): New function, split out from...
	(init_varasm_status): ...here.
	(force_const_mem): Choose between the shared and per-function constant
	pools.  Set current_function_uses_const_pool when reusing old entries
	as well as when creating new ones.
	(mark_constant): Ignore data argument.
	(mark_constants): Remove pool argument.
	(mark_constant_pool): Likewise.  Use current_function_uses_const_pool
	to decide whether the function uses a constant pool.
	(output_constant_pool_contents): New function, split out from...
	(output_constant_pool): ...here.
	(output_shared_constant_pool): New function.
	(init_varasm_once): Initialize shared_constant_pool.
	* output.h (output_constant_pool): Delete.
	(output_shared_constant_pool): Declare.
	* config/s390/s390-protos.h (s390_output_constant_pool): Delete.
	* config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.

2006-03-06  Nick Clifton  <nickc@redhat.com>

	* config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
	flag_strength_reduce.

2006-03-06  Ben Elliston  <bje@au.ibm.com>

	* config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
	x86_64-*-linux* configurations.

	* config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
	(LIBGCC2_WORDS_BIG_ENDIAN): Define.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

	* tree-ssa-threadupdate.c (rediscover_loops_after_threading):
	Remove.
	* basic-block.h: Remove the extern for
	rediscover_loops_after_threading.

	* cfgloop.c (cancel_loop): Make it static.
	* cfgloop.h: Remove the prototype for cancel_loop.

	* flow.c (recompute_reg_usage): Make it static.
	* rtl.h: Remove the prototype for recompute_reg_usage.

	* function.c (use_return_register): Make it static.
	* function.h: Remove the prototype.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

	* recog.c (volatile_mem_p, validate_change_maybe_volatile):
	Remove.
	* recog.h: Remove the prototype for
	validate_change_maybe_volatile.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

	* rtlanal.c (replace_reg): Remove.
	* rtl.h: Remove the prototype for replace_reg.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

	* regclass.c (reg_scan_update): Remove.
	(reg_scan_mark_refs): Remove the last argument.
	* rtl.h: Remove the prototype for reg_scan_update.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

	* builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
	combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
	config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
	config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
	df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
	loop-invariant.c, omp-low.c, opts.c, passes.c,
	rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
	tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
	tree-ssa-structalias.c, tree-ssa-threadedge.c,
	tree-ssa-threadupdate.c, tree-vect-patterns.c,
	tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
	unwind-dw2.c: Fix comment typos.  Follow spelling conventions.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

	* dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
	* dwarf2out.h: Remove the prototype for
	dwarf2out_add_library_unit_info.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

	* tree.c (add_var_to_bind_expr): Remove.
	* tree.h: Remove the prototype for add_var_to_bind_expr.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

	* regclass.c (n_non_fixed_regs): Remove.
	(init_reg_sets_1, globalize_reg): Remove all uses of
	n_non_fixed_regs.
	* hard-reg-set.h: Remove the extern for n_non_fixed_regs.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

	* rtlanal.c (insns_safe_to_move_p): Remove.
	* rtl.h: Remove the prototype for insns_safe_to_move_p.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

	* expmed.c (expand_mult_add): Remove.
	* expr.h: Remove the prototype for expand_mult_add.

2006-03-04  Jakub Jelinek  <jakub@redhat.com>

	* unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
	and REG_SAVED_VAL_EXP constants.
	* unwind-dw2.c (struct _Unwind_Context): Add by_value array.
	(_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
	Handle regs stored by value.
	(_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
	(execute_cfa_program): Handle DW_CFA_val_offset,
	DW_CFA_val_offset_sf and DW_CFA_val_expression.
	(uw_update_context_1): Handle REG_SAVED_REG with regs stored by
	value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
	(uw_install_context_1): Handle target regs stored by value.

2006-03-03  Daniel Berlin  <dberlin@dberlin.org>

	* tree-sra.c (tree_sra): Return todoflags;
	(generate_one_element): Set TODO_update_smt_usage if needed.
	(pass_sra): Remove TODO_update_smt_usage.
	* tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
	parameter.
	(tree_ssa_forward_propagate_single_use_vars): Return
	TODO_update_smt_usage if we need to update SMT usage.
	(pass_forwprop): Remove TODO_update_smt_usage.

2006-03-03  Diego Novillo  <dnovillo@redhat.com>

	* tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
	(correct_use_link): Remove reference to get_stmt_operands.
	(update_stmt_operands): Likewise.
	(get_modify_expr_operands): New function factored out of
	parse_ssa_operands and get_expr_operands.
	Try to create V_MUST_DEFs for LHS by default.
	(get_expr_operands) <case MODIFY_EXPR>: Call
	get_modify_expr_operands.
	<case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
	<case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
	(parse_ssa_operands) <case MODIFY_EXPR>: Call
	get_modify_expr_operands.

2006-03-03  Kazu Hirata  <kazu@codesourcery.com>

	* tree-dfa.c (referenced_var_lookup_if_exists): Remove.
	* tree-flow.h: Remove the prototype for
	referenced_var_lookup_if_exists.

2006-03-03  Steve Ellcey  <sje@cup.hp.com>

	PR rtl-optimization/26345
	PR target/19061
	* config/ia64/predicates.md (basereg_operand): Don't look in subregs.

2006-03-03  Roger Sayle  <roger@eyesopen.com>

	PR tree-optimization/26524
	* tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
	fold_convert to create a constant of the appropriate type.

2006-03-03  Richard Sandiford  <richard@codesourcery.com>

	* doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
	SYMBOL_REF_IN_BLOCK_P.
	* doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
	of SYMBOL_FLAG_IN_BLOCK.
	* gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
	instead of SYMBOL_REF_IN_BLOCK_P.
	* explow.c (use_anchored_address): Likewise.
	* rtl.c (rtx_size): Likewise.
	* varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
	instead of SYMBOL_FLAG_IN_BLOCK.
	(make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
	SYMBOL_REF_IN_BLOCK_P.
	(assemble_variable): Likewise.
	(output_constant_def_contents): Likewise.
	(output_constant_pool): Likewise.
	(default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
	instead of SYMBOL_FLAG_IN_BLOCK.
	* rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
	SYMBOL_REF_IN_BLOCK_P.
	(SYMBOL_REF_BLOCK): Likewise.
	(SYMBOL_REF_OFFSET): Likewise.
	(BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
	SYMBOL_REF_IN_BLOCK_P.
	(SYMBOL_FLAG_IN_BLOCK): Replace with...
	(SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
	(SYMBOL_REF_IN_BLOCK_P): Replace with...
	(SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.

2006-03-03  Jakub Jelinek  <jakub@redhat.com>

	* config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.

2006-03-02  Roger Sayle  <roger@eyesopen.com>

	* simplify-rtx.c (simplify_unary_operation): When simplifying
	(neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
	that we perform the right shift in the appropriate mode, and
	then extend or truncate the result to requested mode.

2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>

	* gengtype.c (main): Handle double_int type.
	* tree.h (struct tree_int_cst): Make type of int_cst double_int.
	* double-int.c: New file.
	* double-int.h: New file.
	* system.h: Include doubleint.h.
	* Makefile.in (SYSTEM_H): Include double-int.h.
	(double-int.o): Add.

2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>

	PR bootstrap/26478
	* Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
	copying over it.

2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-vrp.c (remove_range_assertions): Do not update statements
	unnecessarily.

2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>

	* cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
	cleanup.
	* gcse.c (rest_of_handle_gcse): Ditto.
	* except.c (gate_handle_eh): Ditto.
	* cfgcleanup.c (rest_of_handle_jump2): Ditto.
	* basic-block.h (CLEANUP_PRE_LOOP): Remove.

2006-03-02  Eric Christopher  <echristo@apple.com>

	* config/i386/i386.c (machopic_output_stub): Add indirection to
	jump.

2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>

	* loop.c: Removed.

2006-03-02  David S. Miller  <davem@sunset.davemloft.net>

	Sun Niagara specific optimizations.
	* config.gcc: Recognize niagara as target.
	* config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
	(TARGET_CPU_niagara): Define.
	(CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
	(ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
	(CPP_CPU_SPEC): Handle -mcpu=niagara.
	(ASM_CPU_SPEC): Likewise.
	(PROCESSOR_NIAGARA): New enum entry.
	(REGISTER_MOVE_COST): Handle Niagara.
	(BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
	* config/sparc/sparc.c (niagara_costs): New processor_costs entry.
	(sparc_override_options): Recognize "niagara", set appropriate
	default MASK_* values for it, and align functions to 32-bytes
	by default just like ULTRASPARC/ULTRASPARC3.
	(sparc_initialize_trampoline): Handle niagara like ultrasparc.
	(sparc64_initialize_trampoline): Likewise.
	(sparc_use_sched_lookahead): Use zero for niagara.
	(sparc_issue_rate): Use one for niagara.
	* config/sparc/niagara.md: New file.
	* config/sparc/sparc.md: Include it.
	* config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
	ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
	when default cpu is niagara.
	(CPP_CPU_SPEC): Handle -mcpu=niagara.
	(ASM_CPU_SPEC): Likewise.
	* config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
	when default cpu is niagara.
	(ASM_CPU_SPEC): Handle -mcpu=niagara.
	* config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
	just like v9/ultrasparc/ultrasparc3.
	* doc/invoke.texi: Add documentation for "niagara" and improve
	existing documentation for ultrasparc variants.

2006-03-02  Diego Novillo  <dnovillo@redhat.com>

	* tree-ssa-operands.c (update_stmt_operands): Update documentation.

2006-03-02  Richard Sandiford  <richard@codesourcery.com>

	* doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
	(ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
	and say that only one is needed.
	* doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
	* target.h (have_switchable_bss_sections): New hook.
	* explow.c (use_anchored_address): Check that the symbol is in a block.
	* varasm.c (tls_comm_section, comm_section, lcomm_section)
	(bss_noswitch_section): New variables.
	(get_unnamed_section): Add SECTION_UNNAMED to the flags.
	(get_noswitch_section): New function.
	(get_block_for_section): Allow SECT to be null.
	(unlikely_text_section_p): Use SECTION_STYLE.
	(bss_initializer_p): New function.
	(get_variable_section): Move earlier in file.  Take a new argument,
	prefer_noswitch_p.  Move bss checks from assemble_variable to here.
	Return one of the new *_sections in such cases.
	(get_block_for_decl): New function, extracting some logic from
	use_blocks_for_decl_p.
	(change_symbol_section): Remove in favor of...
	(change_symbol_block): ...this new function.
	(use_blocks_for_decl_p): Remove checks now performed by
	get_block_for_decl.
	(make_decl_rtl): Use change_symbol_block and get_block_for_decl.
	(ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
	(emit_local, emit_bss, emit_common): ...these new functions.
	Return true if the alignment was honored.
	(emit_tls_common): New function.
	(asm_emit_uninitialised): Delete.
	(assemble_variable_noswitch): New function, split out from...
	(assemble_variable): ...here.  Don't make decisions about common
	variables here.  Globalize all public decls that go into non-common
	sections.  Check whether SYMBOL_REF_BLOCK is null.
	(output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
	(output_constant_pool): Likewise.
	(init_varasm_once): Initialize the new section variables.
	(have_global_bss_p): New function.
	(categorize_decl_for_section): Use bss_initializer_p.
	(switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
	(place_block_symbol): Assert that the symbol must be in a block.
	* target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
	(TARGET_INITIALIZER): Include it.
	* rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
	* output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
	(SECTION_MACH_DEP): Bump by two.
	(SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
	(unnamed_section): Mention SECTION_UNNAMED in comment.
	(named_section): Likewise SECTION_NAMED.
	(noswitch_section_callback): New type.
	(noswitch_section): New structure.
	(section): Add a noswitch_section alternative.
	(SECTION_STYLE): New macro.
	(tls_comm_section, comm_section, lcomm_section): Declare.
	(bss_noswitch_section, have_global_bss_p): Declare.
	* config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
	* config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
	Override.
	* config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
	* config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
	Override.

2006-03-02  Daniel Berlin <dberlin@dberlin.org>

	* gcc/tree-vrp.c (execute_vrp): Return value.
	* gcc/regrename.c (rest_of_handle_regrename): Ditto.
	* gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
	* gcc/tree-complex.c (tree_lower_complex): Ditto.
	(tree_lower_complex_O0): Ditto.
	* gcc/tracer.c (rest_of_handle_tracer): Ditto.
	* gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
	* gcc/postreload.c (rest_of_handle_postreload): Ditto.
	* gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
	(execute_tail_calls): Ditto.
	* gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
	* gcc/tree.h (init_function_for_compilation): Ditto.
	* gcc/ipa-cp.c (ipcp_driver): Ditto.
	* gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
	* gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
	* gcc/final.c (compute_alignments): Ditto.
	(rest_of_handle_final): Ditto.
	(rest_of_handle_shorten_branches): Ditto.
	(rest_of_clean_state): Ditto.
	* gcc/omp-low.c (execute_expand_omp): Ditto.
	(execute_lower_omp): Ditto.
	* gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
	* gcc/ipa-reference.c (static_execute): Ditto.
	* gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
	* gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
	(rest_of_handle_machine_reorg): Ditto.
	* gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
	* gcc/flow.c (recompute_reg_usage): Ditto.
	(rest_of_handle_remove_death_notes): Ditto.
	(rest_of_handle_life): Ditto.
	(rest_of_handle_flow2): Ditto.
	* gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
	* gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
	(do_ssa_store_ccp): Ditto.
	(execute_fold_all_builtins): Ditto.
	* gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
	* gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
	* gcc/ipa-pure-const.c (static_execute): Ditto.
	* gcc/cse.c (rest_of_handle_cse): Ditto.
	(rest_of_handle_cse2): Ditto.
	* gcc/web.c (rest_of_handle_web): Ditto.
	* gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
	* gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
	* gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
	* gcc/tree-nrv.c (tree_nrv): Ditto.
	(execute_return_slot_opt): Ditto.
	* gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
	(create_structure_vars): Ditto.
	* gcc/loop-init.c (rtl_loop_init): Ditto.
	(rtl_loop_done): Ditto.
	(rtl_move_loop_invariants): Ditto.
	(rtl_unswitch): Ditto.
	(rtl_unroll_and_peel_loops): Ditto.
	(rtl_doloop): Ditto.
	* gcc/gimple-low.c (lower_function_body): Ditto.
	(mark_used_blocks): Ditto.
	* gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
	* gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
	(cgraph_early_inlining): Ditto.
	* gcc/global.c (rest_of_handle_global_alloc): Ditto.
	* gcc/jump.c (cleanup_barriers): Ditto.
	(purge_line_number_notes): Ditto.
	* gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
	(rest_of_handle_if_after_reload): Ditto.
	* gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
	(tree_ssa_loop_im): Ditto.
	(tree_ssa_loop_unswitch): Ditto.
	(tree_vectorize): Ditto.
	(tree_linear_transform): Ditto.
	(tree_ssa_loop_ivcanon): Ditto.
	(tree_ssa_empty_loop): Ditto.
	(tree_ssa_loop_bounds): Ditto.
	(tree_complete_unroll): Ditto.
	(tree_ssa_loop_prefetch): Ditto.
	(tree_ssa_loop_ivopts): Ditto.
	(tree_ssa_loop_done): Ditto.
	* gcc/predict.c (tree_estimate_probability): Ditto.
	* gcc/recog.c (split_all_insns_noflow): Ditto.
	(rest_of_handle_peephole2): Ditto.
	(rest_of_handle_split_all_insns): Ditto.
	* gcc/tree-eh.c (lower_eh_constructs): Ditto.
	* gcc/regmove.c (rest_of_handle_regmove): Ditto.
	(rest_of_handle_stack_adjustments): Ditto.
	* gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
	* gcc/function.c (instantiate_virtual_regs): Ditto.
	(init_function_for_compilation): Ditto.
	(rest_of_handle_check_leaf_regs): Ditto.
	* gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
	(rest_of_handle_gcse): Ditto.
	* gcc/ipa-type-escape.c (type_escape_execute): Ditto.
	* gcc/alias.c (rest_of_handle_cfg): Ditto.
	* gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
	* gcc/profile.c (rest_of_handle_branch_prob): Ditto.
	* gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
	* gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
	* gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
	* gcc/tree-dfa.c (find_referenced_vars): Ditto.
	* gcc/except.c (set_nothrow_function_flags): Ditto.
	(convert_to_eh_region_ranges): Ditto.
	(rest_of_handle_eh): Ditto.
	* gcc/emit-rtl.c (unshare_all_rtl): Ditto.
	(remove_unnecessary_notes): Ditto.
	* gcc/except.h (set_nothrow_function_flags): Ditto.
	(convert_to_eh_region_ranges): Ditto.
	* gcc/cfgexpand.c (tree_expand_cfg): Ditto.
	* gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
	* gcc/tree-ssa-pre.c (do_pre): Ditto.
	(execute_fre): Ditto.
	* gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
	(rest_of_handle_jump2): Ditto.
	* gcc/tree-sra.c (tree_sra): Ditto.
	* gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
	(execute_mudflap_function_decls): Ditto.
	* gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
	(do_store_copy_prop): Ditto.
	* gcc/ipa-prop.h (ipcp_driver): Ditto.
	* gcc/cfglayout.c (insn_locators_initialize): Ditto.
	* gcc/tree-ssa-forwprop.c
	(tree_ssa_forward_propagate_single_use_vars): Ditto.
	* gcc/cfglayout.h (insn_locators_initialize): Ditto.
	* gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
	* gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
	(execute_late_warn_uninitialized): Ditto.
	* gcc/rtl.h (cleanup_barriers): Ditto.
	(split_all_insns_noflow): Ditto.
	(purge_line_number_notes): Ditto.
	(unshare_all_rtl): Ditto.
	(remove_unnecessary_notes): Ditto.
	(recompute_reg_usage): Ditto.
	(variable_tracking_main): Ditto.
	* gcc/integrate.c (emit_initial_value_sets): Ditto.
	* gcc/integrate.h (emit_initial_value_sets): Ditto.
	* gcc/tree-optimize.c (execute_free_datastructures): Ditto
	(execute_free_cfg_annotations): Ditto.
	(execute_fixup_cfg): Ditto.
	(execute_cleanup_cfg_pre_ipa): Ditto.
	(execute_cleanup_cfg_post_optimizing): Ditto.
	(execute_init_datastructures): Ditto.
	* gcc/tree-object-size.c (compute_object_sizes): Ditto.
	* gcc/combine.c (rest_of_handle_combine): Ditto.
	* gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
	* gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
	(rest_of_handle_reorder_blocks): Ditto.
	(rest_of_handle_partition_blocks): Ditto.
	* gcc/var-tracking.c (variable_tracking_main): Ditto.
	* gcc/tree-profile.c (tree_profiling): Ditto.
	* gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
	* gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
	* gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
	(rest_of_handle_sched2): Ditto.
	* gcc/basic-block.h (free_bb_insn): Ditto.
	* gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
	* gcc/tree-cfg.c (execute_build_cfg): Ditto.
	(remove_useless_stmts): Ditto.
	(split_critical_edges): Ditto.
	(execute_warn_function_return): Ditto.
	(execute_warn_function_noreturn): Ditto.
	* gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
	* gcc/cfgrtl.c (free_bb_for_insn): Ditto.
	* gcc/passes.c (execute_one_pass): Run additional
	todos returned by execute function.
	* gcc/tree-pass.h (struct tree_opt_pass): Make execute
	return a value.

2006-03-02  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-alias.c (find_used_portions): Consider taking
	the address as making the variable not write-only.

2006-03-02  Nick Clifton  <nickc@redhat.com>

	* config.gcc (default_use_cxa_atexit): Extend the description of
	this configure variable.  Set its default value to "yes" for
	Linux, NetBSD and ELF targets on the assumption that they will
	use C libraries with the __cxa_atexit function.

2006-03-02  Ben Elliston  <bje@au.ibm.com>

	* config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
	parameter as unused to suppress a build warning.

2006-03-02  Ben Elliston  <bje@au.ibm.com>

	* mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
	config/dfp-bit.c.

2006-03-01  Roger Sayle  <roger@eyesopen.com>

	PR other/26489
	* gthr-posix.h (__gthrw2): Define to take three parameters, the
	declared name, the weak reference name, and the typeof name.
	(__gthrw): Avoid expanding the declared name suffix.
	(__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.

2006-03-01  Jakub Jelinek  <jakub@redhat.com>

	* dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
	from DWARF 3.
	(DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
	DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
	DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
	DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
	DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
	(DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
	(DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
	DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
	(DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
	DW_DS_leading_separate, DW_DS_trailing_separate): New.
	(DW_END_default, DW_END_big, DW_END_little): New.
	(DW_END_lo_user, DW_END_hi_user): Define.
	(DW_LNE_lo_user, DW_LNE_hi_user): Define.
	(DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
	(DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
	DW_LANG_D): New.

2006-03-01  Diego Novillo  <dnovillo@redhat.com>

	* tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
	Update all users.
	* tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
	Update all users.
	(TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
	Update all users.
	* tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
	Update all users.
	* tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
	to 'symbol_mem_tag'.
	Update all users.
	* doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
	rename.

2006-03-01  Roger Sayle  <roger@eyesopen.com>

	* builtins.c (fold_builtin_copysign): Delete unreachable code.

2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>

	PR target/25761
	* config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
	MACHO_DYNAMIC_NO_PIC_P.
	(MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.

2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>

	PR target/26389
	* config/darwin-protos.h (darwin_asm_output_anchor):
	Declare.
	* config/darwin-sections.def (cstring_section):
	Add SECTION_MERGE to the flags.
	(literal4_section): Likewise.
	(literal8_section): Likewise.
	(objc_selector_refs_section): Likewise.
	(objc_cls_refs_section): Likewise.
	* config/darwin.c (darwin_asm_output_anchor): New
	function.
	* config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.

2006-03-01  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/26443
	* tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
	to todo and PROP_tmt_usage to properties_destroyed.
	* tree-ssa-ccp.c (pass_ccp): Ditto.
	(pass_store_ccp): Ditto.
	* tree-ssa-dom.c (pass_dominator): Ditto.

2006-03-01  Diego Novillo  <dnovillo@redhat.com>

	* tree-ssa-operands.c: Cleanup whitespace.
	(get_asm_expr_operands): Move before first invocation.
	(get_indirect_ref_operands): Likewise.
	(get_tmr_operands): Likewise.
	(get_call_expr_operands): Likewise.
	(append_def): Likewise.
	(append_use): Likewise.
	(append_v_may_def): Likewise.
	(append_v_must_def): Likewise.
	(add_call_clobber_ops): Likewise.
	(add_call_read_ops): Likewise.
	(add_stmt_operand): Likewise.
	(add_virtual_operand): Likewise.
	(build_ssa_operands): Likewise.

2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>

	PR middle-end/26022
	Revert:
	PR middle-end/24437
	* tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
	with a call expr to ...
	* fold-const.c (fold_ternary) <case CALL_EXPR>: Here.

2006-03-01  Diego Novillo  <dnovillo@redhat.com>

	* tree-vrp.c (extract_range_from_assert): Remove special
	handling for types with super-types.

2006-03-01  Ben Elliston  <bje@au.ibm.com>

	* config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
	and powerpc64-*-linux* configurations.
	* config/t-dfprules: New file.

	* mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
	Compile dfp-bit.c from the source directory using -DWIDTH and
	$DFP_CFLAGS to control the compilation of that file, rather than
	generating width-specific versions in the build directory.
	* Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
	(LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].

2006-02-28  Zack Weinberg  <zackw@panix.com>

	* doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
	continues to work.

2006-02-28  Eric Christopher  <echristo@apple.com>

	* config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
	Set up IN_LIBGCC definition of TARGET_64BIT.
	* config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.

2006-02-28  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/14752
	* c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
	BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
	cases via the construction of "expr != 0".

2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>

	* alias.c (alias_invariant, alias_invariant_size): Remove.
	(record_base_value): Remove.
	(memrefs_conflict_p): Don't look at alias_invariant.
	(end_alias_analysis): Don't free it.
	* alias.h (record_base_value): Remove prototype.

2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
	    Adam Nemet  <anemet@caviumnetworks.com>

	* rtl.h (truncated_to_mode): Declare it.
	(struct rtl_hooks): Add reg_truncated_to_mode hook.
	* rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
	(RTL_HOOKS_INITIALIZER): Include it.
	* rtlhooks.c (reg_truncated_to_mode_general): New function.
	* combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
	reg_truncated_to_mode.
	* rtlanal.c (truncated_to_mode): Define it.
	* simplify-rtx.c (simplify_unary_operation_1): Use it.

2006-02-28  Jeff Law  <law@redhat.com>

	* tree-chrec.c (chrec_convert_aggressive): Do not eliminate
	conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
	the range allowed by TYPE_PRECISION.

	* tree.h (strct phi_arg_d): Remove unused NONZERO field.

2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>

	PR tree-optimization/26419
	* doc/invoke.texi (ftree-vectorizer-verbose): Add information on
	values of n.

2006-02-27  Zack Weinberg  <zackw@panix.com>

	* doc/md.texi: Fix typo in previous change.

2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>

	* df.c: Remove.

2006-02-27  Zack Weinberg  <zackw@panix.com>

	* rtl.def (define_constraint, define_register_constraint)
	(define_memory_constraint, define_address_constraint): New MD forms.
	* gensupport.c (process_rtx): Put define_constraint etc on the
	predicate queue.
	* genpreds.c (process_define_predicate): Adjust comment.  Validate
	the name, and call validate_exp to validate the expression.
	(mark_mode_tests, write_extract_subexp): Can assume correct input.
	(write_predicate_expr): Likewise.  NAME argument no longer necessary;
	all callers changed.
	(validate_exp, needs_variable, struct constraint_data)
	(constraints_by_letter_table, first_constraint, last_constraint_ptr)
	(FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
	(const_dbl_constraints, constraint_max_namelen)
	(have_register_constraints, have_memory_constraints)
	(have_address_constraints, have_address_constraints)
	(have_extra_constraints, have_const_int_constraints)
	(have_const_dbl_constraints, mangle, add_constraint)
	(process_define_constraint, process_define_register_constraint)
	(write_enum_constraint_num, write_lookup_constraint)
	(write_insn_constraint_len, write_regclass_for_constraint)
	(write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
	(write_insn_extra_memory_constraint)
	(write_insn_extra_address_constraint)
	(write_satisfies_constraint_fns): New.
	(write_tm_preds_h): If we have new-style constraint definitions,
	prototype the functions generated from them, and define the
	old constraint interface (still used by generic code) in terms of
	those functions.
	(write_insn_preds_c): If we have new-style constraint definitions,
	generate all relevant functions from those definitions.
	(main): Handle define_constraint etc.
	* genoutput.c (struct constraint_data, indep_constraints)
	(mdep_constraint_letters, constraints_by_letter_table, note_constraint)
	(mdep_constraint_len): New data structures and functions, defined
	#ifdef USE_MD_CONSTRAINTS.
	(check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
	(validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
	use new logic to validate operand constraints against constraint
	definitions.
	(main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
	defined.
	* defaults.h: If none of the old-style constraint macros are
	defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
	old-style macros; and poison REG_CLASS_FROM_LETTER,
	CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
	EXTRA_CONSTRAINT.
	* recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
	* doc/md.texi: Document new constraint-definition mechanism and the
	C interface it provides.  Remove references to old mechanism
 	elsewhere in the document.
	(Machine Constraints): Use pathnames relative to gcc directory,
	i.e. config/ARCH/FILE.  Change i386 section to refer to
	config/i386/predicates.md; update that section to match docstrings.
	* doc/tm.texi: Move all documentation of the old constraint-
	definition macros to their own section, clearly mark as obsolete.

	* config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
	(u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
	definitions.
	* config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
	(CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
	* config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
	constraint strings.
	(splits and peepholes): Use satisfies_constraint_*.
	* config/i386/i386.c (memory_address_length)
	(ix86_attr_length_immediate_default): Use satisfies_constraint_*.

2006-02-27  Daniel Berlin  <dberlin@dberlin.org>

	* lambda-code.c (can_convert_to_perfect_nest): Allow any type of
	scalar operation to be put back into the loop.

2006-02-27  Jakub Jelinek  <jakub@redhat.com>

	PR other/26208
	* unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
	(extract_cie_info): Handle S flag in augmentation string.
	(execute_cfa_program): If context->signal_frame, execute also
	fs->pc == context->ra instructions.
	(uw_frame_state_for): If context->signal_frame, don't subtract one
	from context->ra to find FDE.
	(uw_update_context_1): Set context->signal_frame to
	fs->signal_frame.
	(_Unwind_GetIPInfo): New function.
	* unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
	* unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
	of _Unwind_GetIP.
	* unwind-sjlj.c (_Unwind_GetIPInfo): New function.
	* unwind-generic.h (_Unwind_GetIPInfo): New prototype.
	* unwind-compat.c (_Unwind_GetIPInfo): New function.
	* libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
	* config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
	* config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
	* config/i386/linux-unwind.h (x86_fallback_frame_state,
	x86_64_fallback_frame_state): Set fs->signal_frame.
	* config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
	(MD_FROB_UPDATE_CONTEXT): Define unconditionally.
	(frob_update_context): Likewise.  Workaround missing S flag in
	Linux 2.6.12 - 2.6.16 kernel vDSOs.
	* config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
	Remove the psw_addr + 1 hack.

2006-02-27  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-structalias.c (get_constraint_for): Move code to deal
	with aggregates here.
	(find_func_aliases): Remove code for &<aggregate> from here.

2006-02-26  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
	(X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
	Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
	as (X & C) ne/eq 0.

2006-02-26  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/19983
	* real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.

2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>

	* opts.c (decode_options): Do not handle flag_strength_reduce.
	(common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
	and OPT_fstrength_reduce.
	* tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
	flag_prefetch_loop_arrays for being nonzero.
	* common.opt (floop-optimize, frerun-loop-opt): Resurrected as
	no-ops.
	(fprefetch-loop-arrays-rtl): Removed.
	(flag_prefetch_loop_arrays): Do not specify the value.

	* doc/passes.texi: Update documentation of loop optimizer
	passes.
	* doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
	-frerun-loop-opt): Remove.

2006-02-26  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26421
	* tree-ssa-alias.c (find_used_portions): Don't treat parameters
	in function calls that are ADDR_EXPRs as using the whole structure.

2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>

	* common.opt (-floop-optimize, -frerun-loop-opt): Remove.
	* tree-pass.h (pass_loop_optimize): Remove.
	* passes.c (pass_loop_optimize): Never run it.
	* toplev.c (backend_init): Don't call init_loop.
	* opts.c (flag_loop_optimize_set): Remove.
	(decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
	(common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
	the old RTL loop optimizer when profiling enabled.
	* predict.c (tree_estimate_probability): Always strip builtin_expect.
	* cfgcleanup.c (try_forward_edges): Don't avoid killing loop
	pre-headers for the sake of the old RTL loop optimizer.
	* Makefile.in: Remove all references to loop.o.

	* doc/invoke.texi: Remove all references to -floop-optimize
	and -frerun-loop-opt.

2006-02-26  Zack Weinberg  <zackw@panix.com>

	* doc/md.texi (Machine Constraints): Refer to all files with paths
	relative to gcc directory (i.e. config/CPU/file).  Add missing
	@table @code ... @end table to M32C subsection.

2006-02-26  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
	(X & 1) == 0.
	<BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.

2006-02-26  Roger Sayle  <roger@eyesopen.com>
	    James A. Morrison  <phython@gcc.gnu.org>

	PR middle-end/21137
	* fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
	when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
	new constant C2<<C1, or as (X<0) or (X,false) depending upon the
	signedness of the shift operation.

2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>

	PR tree-optimization/26359
	* tree-ssa-alias.c (new_type_alias): Set fields for new tag.

2006-02-25  Roger Sayle  <roger@eyesopen.com>

	* simplify-rtx.c (simplify_relational_operation_1):  Simplify
	(X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
	as X == 0, and some symmetry related transformations.
	Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.

2006-02-25  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/23673
	* fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
	and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
	symmetry related transformations.  Fold (X^C1) == C2 as
	X == (C1^C2).

2006-02-25  Juergen Weigert  <jw@suse.de>
	Richard Guenther  <rguenther@suse.de>

	* scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.

2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>

	* combine.c (gen_lowpart_or_truncate): Call
	simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.

2006-02-24  Diego Novillo  <dnovillo@redhat.com>

	* doc/invoke.texi: Move -fopenmp description to "Options for
	Code Generation".
	Remove reference to -lgomp.

2006-02-24  David Edelsohn  <edelsohn@gnu.org>

	* doc/install.texi: Require GNU tar version 1.14.

2006-02-24  Geoffrey Keating  <geoffk@apple.com>

	* doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
	* doc/invoke.texi (C++ Dialect Options): Document
	-fno-use-cxa-get-exception-ptr.
	* configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
	* configure: Regenerate.
	* c.opt (fuse-cxa-get-exception-ptr): New.
	* c-opts.c (c_common_handle_option): Handle
	OPT_fuse_cxa_get_exception_ptr.
	* c-common.c (flag_use_cxa_atexit): Update documentation.
	(flag_use_cxa_get_exception_ptr): New.
	* c-common.h (flag_use_cxa_get_exception_ptr): New.
	* config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
	documentation.
	(C_COMMON_OVERRIDE_OPTIONS): New.

2006-02-24  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/24952
	* combine.c (try_combine): Explicitly check whether GET_CODE is
	a SET or a CLOBBER, instead on checking that it isn't a USE.

2006-02-24  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (fold_comparison): New subroutine of fold_binary
	containing transformations common to both the equality and
	ordering relational operators, factored out of fold_binary.
	(fold_binary): Separate out the equality operators (EQ_EXPR
	and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
	LE_EXPR and GE_EXPR), calling fold_comparison to perform the
	transformations common to both.
	(fold_div_compare): Fix latent bugs in the previously unreachable
	LT_EXPR and GE_EXPR cases.

2006-02-24  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.c (rs6000_init_builtins): Change
	decl libname for clog to __clog on AIX.

	* config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.

2006-02-24  Alan Modra  <amodra@bigpond.net.au>

	PR target/26453
	* config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
	output traceback table for thunks.  Localise rs6000_stack_info call.

2006-02-23  Roger Sayle  <roger@eyesopen.com>
	    Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	* gthr-posix.h (__gthrw): Fix typo in comment.

2006-02-23  Geoffrey Keating  <geoffk@apple.com>

	* doc/cpp.texi (Character sets): Document that we do support
	input files to be in any character set.

2006-02-23  Jeff Law  <law@redhat.com>

	* tree.h (PHI_ARG_NONZERO): Remove.
	* tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
	(remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
	node to the new node.

	PR tree-optimization/26425
	* tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
	min/max, then assume its varying.

2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/26316
	* rtlanal.c (enum may_trap_p_flags): New.
	(may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
	MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
	(may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
	(may_trap_after_code_motion_p): New function.
	* loop-invariant.c (find_identical_invariants): Fix dump formating.
	(find_invariant_insn): Use may_trap_after_code_motion_p.
	* rtl.h (may_trap_after_code_motion_p): Declare.

2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>

	* emit-rtl.c (immed_double_const): Cleanup.

2006-02-23  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/26376
	* tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
	remove assert.

2006-02-23  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/26412
	* gimplify.c (omp_add_variable): Guard variable size decl test with
	DECL_SIZE (decl) check.

2006-02-23  Richard Guenther  <rguenther@suse.de>

	PR middle-end/26439
	* tree-ssa-structalias.c (find_func_aliases): Handle complex types
	like aggregate types.

2006-02-23  Jakub Jelinek  <jakub@redhat.com>

	* configure.ac: Add --with{,out}-long-double-128 configure option.
	(TARGET_DEFAULT_LONG_DOUBLE_128): New test.
	* configure: Rebuilt.
	* config.in: Rebuilt.
	* doc/install.texi (Options specification): Document
	--with-long-double-128.

	* config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
	(RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
	* config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
	(RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.

2006-02-23  Aldy Hernandez  <aldyh@redhat.com>

	* config/s390/s390.c (override_options): Handle
	TARGET_DEFAULT_LONG_DOUBLE_128.

	* config/alpha/alpha.c (override_options): Handle
	TARGET_DEFAULT_LONG_DOUBLE_128.

	* config/sparc/sparc.c (sparc_override_options): Handle
	TARGET_DEFAULT_LONG_DOUBLE_128.

2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>

	* Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
	(real-install-headers-tar, real-install-headers-cpio)
	(real-install-headers-cp): New targets.

2006-02-22  Richard Sandiford  <richard@codesourcery.com>

	* tree.h (variable_section): Delete.
	* varasm.c (variable_section): Delete.

2006-02-22  Paolo Bonzini  <bonzini@gnu.org>

	* install.texi: Add notes on install.texi2html.
	(Building in parallel): Do not use footnotes.

2006-02-21  Aldy Hernandez  <aldyh@redhat.com>

	PR libgomp/26234
	* doc/install.texi (Configuration): Document --disable-libgomp.

2006-02-21  Geoffrey Keating  <geoffk@apple.com>

	* config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.

2006-02-21  Alexandre Oliva  <aoliva@redhat.com>

	* config/i386/sse.md (vec_extractv2df_1_sse): New.
	(vec_extractv2df_0_sse): New.

2006-02-21  Alexandre Oliva  <aoliva@redhat.com>

	* defaults.h (CFA_FRAME_BASE_OFFSET): Define.
	* config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
	* doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
	* dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
	to the result of the expression.
	(def_cfa_1): Adjust.
	(frame_pointer_cfa_offset): Rename to...
	(frame_pointer_fb_offset): ... this.  Adjust all uses.
	(convert_cfa_to_loc_list): Rename to...
	(convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
	Pass it on to build_cfa_loc.
	(compute_frame_pointer_to_cfa_displacement): Rename to...
	(compute_frame_pointer_to_fb_displacement): ... this.  New
	offset parameter.  Use it in computation.
	(gen_subprogram_die): Compute cfa_fb_offset with the new
	macro, and use it to compute the fb loc list and the
	displacement.

2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
	replaced with register_operand.
	* config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
	non-DREG is expensive.
	* config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
	* config/bfin/bfin.md (movbi): Fix constraints and template for moves
	involving memory.

2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>

	* doc/install.texi2html: Use set -e.

2006-02-21  Richard Sandiford  <richard@codesourcery.com>

	* doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
	(ASM_OUTPUT_SHARED_LOCAL): Delete.
	* doc/invoke.texi (-fshared-data): Delete.
	* common.opt (fshared-data): Delete.
	* varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
	(assemble_static_space): Remove #if 0 code.
	* system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
	(ASM_OUTPUT_SHARED_LOCAL): Poison.
	* config/cris/cris.h: Remove FIXME.

2006-02-21  Paolo Bonzini  <bonzini@gnu.org>

	* doc/sourcebuild.texi (Front End Directory): No more double-colon
	hooks.

2006-02-21  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/26379
	* combine.c (simplify_shift_const_1): Disable nested shifts
	optimization for vector shifts.

2006-02-20  Roger Sayle  <roger@eyesopen.com>

	PR tree-optimization/26361
	* tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
	of unsigned integer types.

2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-chrec.c (eq_evolutions_p): New.
	* tree-chrec.h (eq_evolutions_p): Declared.
	* tree-data-ref.c: Fix formatting.
	(datadep_stats, dependence_stats): New.
	(gcd): Moved...
	(print_direction_vector): New.
	(dump_data_dependence_relation): Use print_direction_vector.
	(object_analysis, create_data_ref): Handle COMPONENT_REF.
	(compute_subscript_distance): Static.
	(initialize_data_dependence_relation): Static.  Get the number
	of loops surrounding the references from the callers, and initialize
	DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
	base_object_differ_p analyzers.
	(analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
	compute_overlap_steps_for_affine_1_2,
	analyze_subscript_affine_affine): Count the classified dependences.
	Print a message when a test failed.
	(can_use_analyze_subscript_affine_affine): New.
	(analyze_siv_subscript): Compute the data dependences on symbolic
	scevs that verify can_use_analyze_subscript_affine_affine.
	(chrec_steps_divide_constant_p): Returns true, false, or unknown.
	(analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
	Handle symbolic scevs.
	(analyze_overlapping_iterations): Let symbolic affine scevs to be
	analyzed.
	(subscript_dependence_tester): Moved...
	(build_classic_dist_vector, build_classic_dir_vector): Don't use
	lambda_vector_clear on newly allocated vectors.  Get nb_loops from
	DDR_SIZE_VECT instead of getting it in parameter.
	(subscript_dependence_tester): ... here.  Take as a parameter
	loop_nest_depth.  Call build_classic_dist_vector and
	build_classic_dir_vector.
	(compute_affine_dependence): Update subscript_dependence_tester
	parameters.  Update datadep_stats counters.  Call
	compute_subscript_distance.
	(compute_self_dependence): Save the dist and dir vectors.  Call
	compute_subscript_distance.
	(ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
	(compute_all_dependences): Reorder parameters as they were before
	conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
	compute_subscript_distance.  Update the use of
	compute_affine_dependence and initialize_data_dependence_relation.
	(find_data_references_in_loop): Handle COMPONENT_REF.
	(compute_data_dependences_for_loop): Initialize dependence_stats.
	Don't call build_classic_dist_vector and build_classic_dir_vector.
	Update the parameters of initialize_data_dependence_relation and
	compute_all_dependences.  Print the statistics from datadep_stats.
	(analyze_all_data_dependences): Static.  Not used until the pass for
	checking the data dependences is contributed.
	* tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
	DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
	(initialize_data_dependence_relation, compute_affine_dependence,
	analyze_all_data_dependences, compute_subscript_distance): Removed.
	(print_direction_vector): New.
	* lambda.h (gcd): ... here.
	(lambda_vector_gcd): Moved here from gcd_vector.
	* lambda-code.c (gcd, gcd_vector): Removed.
	(lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
	* Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.

2006-02-20  Diego Novillo  <dnovillo@redhat.com>

	* ipa-type-escape.c: Tidy some comments and white space.
	* tree-ssa-operands.c: Likewise.

2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/25879
	* tree-pretty-print.c (debug_tree_chain): Walk the chains.
	(dump_decl_name): Do not walk the decl tree chains.
	* tree-pass.h (TDF_CHAIN): Remove.

2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>

	* Makefile.in (C): Remove
	(PROTO): Remove
	(.PHONY): Remove C and PROTO

2006-02-20  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/26236
	* doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
	deprecated CHAR_TYPE tree code.

2006-02-20  Paolo Bonzini  <bonzini@gnu.org>

	* configure.ac (target_list): Add install-info, dvi, html.
	* configure: Regenerate.

	* ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
	java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
	treelang/Make-lang.in: Do not use double-colon rules.

2006-02-20  Daniel Berlin  <dberlin@dberlin.org>

	* tree.h (struct tree_memory_tag): Add is_used_alone member.
	(TMT_USED_ALONE): New macro.
	* tree-pass.h (PROP_tmt_usage): New property.
	(TODO_update_tmt_usage): New todo.
	* tree-ssa-alias.c (updating_used_alone): New variable.
	(recalculate_used_alone): New function.
	(compute_may_aliases): Set updating_used_alone, call
	recalculate_used_alone.
	* tree-sra.c (pass_sra): Note that this pass destroys
	PROP_tmt_usage, and add TODO_update_tmt_usage.
	* tree-ssa-forwprop.c (pass_forwprop): Ditto.
	* tree-flow.h (updating_used_alone): Prototype.
	(recalculate_used_alone): Ditto.
	* passes.c (execute_todo): Add code to set updating_used_alone,
	and call recalculate.
	* tree-ssa-operands.c (add_virtual_operand): Only append bare def
	for clobber if used alone, and add assert to verify used_alone
	status.

2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>

	* config/s390/s390.c (legitimize_pic_address): Assertions checking
	for non tls symbols added.
	(legitimize_address): Do nothing for PLUS expressions if one of the
	addends is a tls symbol reference.

2006-02-20  Paolo Bonzini  <bonzini@gnu.org>

	PR bootstrap/25476

	* Makefile.in (LDFLAGS): Define from autoconf substitution.

	* Makefile.in (BOOTSTRAPPING): New.
	(quickstrap): New definition if BOOTSTRAPPING=yes.

	* Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
	* configure.ac: Substitute all_selected_languages with the languages
	that were configured.  For all the other variables except
	lang_specs_files, include all the languages in the tree.
	* configure: Regenerate.

	* Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
	if there is one.  Run the commands to run fixincludes in the same
	subshell.

	* doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
	* doc/install.texi: Document exact conventions for searching target tools.
	Document --with-build-time-tools.  Document toplevel bootstrap.  Document
	something more about building an Ada cross-compiler.  Don't list GNU Make
	requirements which affect all platforms.

2006-02-19  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/19543
	* varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
	only equivalent if the have both the same mode and precision.

2006-02-20  Ben Elliston  <bje@au.ibm.com>

	* doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.

2006-02-19  Roger Sayle  <roger@eyesopen.com>
	    Steven Bosscher  <stevenb.gcc@gmail.com>

	* gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
	constant pool references to identify stack mode constants.
	* rtlanal.c (constant_pool_constant_p): New predicate to check
	whether operand is a floating point constant in the pool.
	* rtl.h (constant_pool_constant_p): Prototype here.
	* loop.c (scan_loop): Avoid hoisting constants from the constant
	pool on STACK_REGS targets.
	(load_mems): Likewise.
	* loop-invariant.c (get_inv_cost): Make hoisting constant pool
	loads into x87 registers expensive in terms of register pressure.

2006-02-19  Roger Sayle  <roger@eyesopen.com>

	* gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
	__foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.

2006-02-19  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
	* config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.

2006-02-19  Daniel Berlin  <dberlin@dberlin.org>

	* doc/invoke.texi: Document -fipa-pta.
	* common.opt: Add ipa-pta option.
	* tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
	(do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
	(do_ds_constraint): Ditto.
	(get_constraint_for): Only add to referenced_vars if
	referenced_vars exists.
	(insert_into_field_list): Rewrite to do this unsorted.
	(insert_into_field_list_sorted): Rename old insert_into_field_list
	to this.
	(create_function_info_for): Use insert_into_field_list_sorted.
	(create_variable_info_for): Rewrite so it uses unsorted version,
	since the field list is sorted.
	(intra_create_variable_infos): Only add to referenced_vars if
	referenced_vars exists.
	(ipa_pta_execute): Init heapvars, and delete when done.
	* passes.c (init_optimization_passes): Add call to pass_ipa_pta.

2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* doc/install.texi: Add missing `@samp'.

2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>

	* config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
	Use the arguments.

2006-02-18  Mark Wielaard  <mark@klomp.org>

	* doc/contrib.texi (Contributors): Add classpath/libgcj hackers
	who added new 4.1 features, bug fixes and integration support.

2006-02-18  David Edelsohn  <edelsohn@gnu.org>

	PR target/26350
	* config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
	MEM for ABI_V4 pic.

2006-02-18  Richard Sandiford  <richard@codesourcery.com>

	* cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
	* emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
	(copy_insn_1): Likewise.  Don't copy each field individually.
	Reindent.
	* read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
	of RTX_SIZE.
	* reload1.c (eliminate_regs): Use shallow_copy_rtx.
	* rtl.c (rtx_size): Rename variable to...
	(rtx_code_size): ...this.
	(rtx_size): New function.
	(rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
	(copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
	Reindent.
	(shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
	* rtl.h (rtx_code_size): New variable.
	(rtx_size): Change from a variable to a function.
	(RTX_SIZE): Rename to...
	(RTX_CODE_SIZE): ...this.

	PR target/9703
	PR tree-optimization/17106
	* doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
	(Anchored Addresses): New section.
	* doc/invoke.texi (-fsection-anchors): Document.
	* doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
	(SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
	(SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
	* hooks.c (hook_bool_mode_rtx_false): New function.
	* hooks.h (hook_bool_mode_rtx_false): Declare.
	* gengtype.c (create_optional_field): New function.
	(adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
	SYMBOL_REF_IN_BLOCK_P is true.
	* target.h (output_anchor, use_blocks_for_constant_p): New hooks.
	(min_anchor_offset, max_anchor_offset): Likewise.
	(use_anchors_for_symbol_p): New hook.
	* toplev.c (compile_file): Call output_object_blocks.
	(target_supports_section_anchors_p): New function.
	(process_options): Check that -fsection-anchors is only used on
	targets that support it and when -funit-at-a-time is in effect.
	* tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
	if the decl doesn't have one.
	* dwarf2out.c: Remove instantiations of VEC(rtx,gc).
	* expr.c (emit_move_multi_word, emit_move_insn): Pass the result
	of force_const_mem through use_anchored_address.
	(expand_expr_constant): New function.
	(expand_expr_addr_expr_1): Call it.  Use the same modifier when
	calling expand_expr for INDIRECT_REF.
	(expand_expr_real_1): Pass DECL_RTL through use_anchored_address
	for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
	* expr.h (use_anchored_address): Declare.
	* loop-unroll.c: Don't declare rtx vectors here.
	* explow.c: Include output.h.
	(validize_mem): Call use_anchored_address.
	(use_anchored_address): New function.
	* common.opt (-fsection-anchors): New switch.
	* varasm.c (object_block_htab, anchor_labelno): New variables.
	(hash_section, object_block_entry_eq, object_block_entry_hash)
	(use_object_blocks_p, get_block_for_section, create_block_symbol)
	(use_blocks_for_decl_p, change_symbol_section): New functions.
	(get_variable_section): New function, split out from assemble_variable.
	(make_decl_rtl): Create a block symbol if use_object_blocks_p and
	use_blocks_for_decl_p say so.  Use change_symbol_section if the
	symbol has already been created.
	(assemble_variable_contents): New function, split out from...
	(assemble_variable): ...here.  Don't output any code for
	block symbols; just pass them to place_block_symbol.
	Use get_variable_section and assemble_variable_contents.
	(get_constant_alignment, get_constant_section, get_constant_size): New
	functions, split from output_constant_def_contents.
	(build_constant_desc): Create a block symbol if use_object_blocks_p
	says so.  Or into SYMBOL_REF_FLAGS.
	(assemble_constant_contents): New function, split from...
	(output_constant_def_contents): ...here.  Don't output any code
	for block symbols; just pass them to place_section_symbol.
	Use get_constant_section and get_constant_alignment.
	(force_const_mem): Create a block symbol if use_object_blocks_p and
	use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
	(output_constant_pool_1): Add an explicit alignment argument.
	Don't switch sections here.
	(output_constant_pool): Adjust call to output_constant_pool_1.
	Switch sections here instead.  Don't output anything for block symbols;
	just pass them to place_block_symbol.
	(init_varasm_once): Initialize object_block_htab.
	(default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
	(default_asm_output_anchor, default_use_aenchors_for_symbol_p)
	(place_block_symbol, get_section_anchor, output_object_block)
	(output_object_block_htab, output_object_blocks): New functions.
	* target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
	(TARGET_ASM_OUT): Include it.
	(TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
	(TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
	(TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
	(TARGET_INITIALIZER): Include them.
	* rtl.c (rtl_check_failed_block_symbol): New function.
	* rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
	(block_symbol, object_block): New structures.
	(rtx_def): Add a block_symbol field to the union.
	(BLOCK_SYMBOL_CHECK): New macro.
	(rtl_check_failed_block_symbol): Declare.
	(SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
	(SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
	(SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
	(SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
	* output.h (output_section_symbols): Declare.
	(object_block): Name structure.
	(place_section_symbol, get_section_anchor, default_asm_output_anchor)
	(default_use_anchors_for_symbol_p): Declare.
	* Makefile.in (RTL_BASE_H): Add vec.h.
	(explow.o): Depend on output.h.
	* config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
	(TARGET_MAX_ANCHOR_OFFSET): Likewise.
	(TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
	(rs6000_use_blocks_for_constant_p): New function.

2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.

2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/25680
	* tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
	IMAGPART_EXPR.

2006-02-18  Diego Novillo  <dnovillo@redhat.com>

	* tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
	is_aliased.
	Update all users.

2006-02-18  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/26334
	* stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
	instead of DECL_REGISTER.

2006-02-18  Olivier Hainque  <hainque@adacore.com>

	PR ada/13408
	* pa.h (WIDEST_HARDWARE_FP_SIZE): Define.

2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>

	PR target/24837
	* config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
	* opth-gen.awk: Handle Var and InverseMask together.
	* config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
	* config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
	(TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
	(CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
	used together.
	(UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
	LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
	* config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
	UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
	LINUX_DYNAMIC_LINKER): Define.
	(ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
	* config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
	TARGET_GLIBC.
	* config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
	(CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
	* config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
	(LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
	(TARGET_C99_FUNCTIONS): Don't define.
	* config/i386/linux.h (DYNAMIC_LINKER): Rename to
	GLIBC_DYNAMIC_LINKER.
	(SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
	* config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
	GLIBC_DYNAMIC_LINKER64): Define.
	(LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
	LINUX_DYNAMIC_LINKER64.
	* config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
	(LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
	* config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
	(LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
	* config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
	(LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
	* config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
	GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
	UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
	(LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
	and LINUX_DYNAMIC_LINKER32.
	* config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
	(LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
	* config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
	(LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
	* config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
	TARGET_GLIBC.
	* config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
	(GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
	UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
	CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
	LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
	(LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
	(LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
	* config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
	UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
	LINUX_DYNAMIC_LINKER): Define.
	(LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
	* config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
	GLIBC_DYNAMIC_LINKER64): Define.
	(LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
	LINUX_DYNAMIC_LINKER64.
	* config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
	(SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
	* config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
	UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
	LINUX_DYNAMIC_LINKER): Define.
	(LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
	(TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
	* config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
	GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
	UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
	LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
	(LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
	(LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
	(TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
	* config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
	(LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
	* doc/invoke.texi (-muclibc): Remove caveat about supported
	targets.

2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>

	* doc/cpp.texi (__TIMESTAMP__): Document.

2006-02-17  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/25600
	* fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
	C is one less than the width of X (and related transformations).
	* simplify-rtx.c (simplify_unary_operation_1): Transform
	(neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
	depending on STORE_FLAG_VALUE, were C is one less then the
	width of X.

2006-02-17  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/26341
	* tree-ssa-operands.c (add_virtual_operand): Remove assert
	about NAME_MEMORY_TAG's.

2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/26255
	* pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
	with hardware float support, and software float support.  Add fcpy
	alternative to hardware patterns.  Add alternatives to copy between
	general and floating-point registers to the 32-bit pattern.
	* pa.c (pa_secondary_reload): Don't abort if reload tries to find a
	secondary reload to load a QI or HI mode constant into a floating
	point register.
	* pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
	* pa64-regs.h (VALID_FP_MODE_P): Likewise.

2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>

	PR target/26272
	* config/rs6000/darwin.md (load_macho_picbase_si): Add
	pc to the pattern.
	(load_macho_picbase_di): Likewise.

2006-02-16  Jeff Law  <law@redhat.com>

	* tree-vrp.c (set_value_range_to_nonnegative): New function.
	(vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
	(ssa_name_nonzero_p): Likewise.
	(get_value_range): Return NULL if VRP is not running.
	(extract_range_from_expr): Fallback to tree_expr_XXX_p if
	VRP routines do not discover a range.
	(vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
	* tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
	* fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
	(tree_expr_nonnegative_p): Similarly.
	* tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
	(restore_nonzero_vars_to_original_value): Remove.
	(unsafe_associative_fp_binop): Remove.
	(tree_ssa_dominator_optimize): Remove initialization and
	finalization of nonzero_vars and nonzero_vars_stack.
	(dom_opt_initialize_block): No longer push marker on
	nonzero_vars_stack.
	(dom_opt_finalize_block): No longer call
	restore_nonzero_vars_to_original_value.
	(record_equivalences_from_phis): No longer look for
	nonzero PHI arguments.
	(cprop_into_successor_phis): No longer propagate nonzero
	property into PHI arguments.  Lose unused argument.  Caller
	updated.
	(record_equivalences_from_stmt): No longer record nonzero
	values for SSA_NAMEs.
	(lookup_avail_expr): No longer use nonzero_vars.

	* stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
	for sizetype when sizetype is unsigned.

2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>

	PR rtl-optimization/25603
	* reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
	(regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
	* reload1.c (choose_reload_regs): Added call of regno_clobbered_p
	with new meaning of SETS.

2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>

	PR target/20353
	PR target/24578
	PR target/24837
	* config/linux.opt: New file.
	* config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
	LINUX_DYNAMIC_LINKER): Define.
	(TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
	* config.gcc (*-*-linux*): Define extra_options.
	(*-*-*uclibc*): Define UCLIBC_DEFAULT.
	(arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
	* config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
	GLIBC_DYNAMIC_LINKER.
	* config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
	(LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
	* config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
	(LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
	* doc/invoke.texi (GNU/Linux Options): New section.

2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* config/sparc/sparc.md (setjmp): Rewrite.
	(setjmp_32): Delete.
	(setjmp_64): Likewise.

2006-02-16  Daniel Berlin <dberlin@dberlin.org>

	* tree-ssa-operands.c (access_can_touch_variable): Fix typo in
	 previous change.

2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>

	* loop-invariant.c (invariant_for_use, check_dependencies): Fail for
	read-write uses.

2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/26296
	* Makefile.in (loop-invariant.c): Add except.h dependency.
	* loop-invariant.c: Include except.h.
	(find_invariant_insn): Ignore insns satisfying can_throw_internal.

2005-02-16  Paul Brook  <paul@codesourcery.com>

	* reload1.c (emit_reload_insns): Invalidate dead input registers used
	for reloads.

2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>

	PR rtl-optimization/25636
	* local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
	when deciding whether an insn is an initializing insn.

2006-02-15 Daniel Berlin  <dberlin@dberlin.org>

	* tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
	(tree_code_size): Ditto.
	* tree.h (struct tree_memory_tag): Remove parent_var.
	(struct tree_struct_field_tag): New.
	(SFT_OFFSET): New.
	(SFT_SIZE): New.
	(union tree_node): Add sft member.
	* tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
	specially here.
	(create_sft): Add size and offset argument, set SFT_OFFSET and
	SFT_SIZE.
	(create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
	* treestruct.def: Add TS_STRUCT_FIELD_TAG.
	* tree-flow-inline.h (get_subvar_at): Update for
	SFT_OFFSET/SFT_SIZE.
	(var_can_have_subvars): Ditto.
	(overlap_subvar): Ditto.
	* print-tree.c (print_node): Print out interesting things for
	SFT's.
	* tree-flow.h (struct subvar): Remove offset and size members.
	* tree-ssa-operands.c (get_expr_operands): Update for
	get_indirect_ref_operands changes.
	(get_indirect_ref_operands): Call add_virtual_operand instead of
	add_stmt_operand.  Only recurse on base var if requested.
	(access_can_touch_variable): New function.
	(add_stmt_operand): Split virtual operand handling into ...
	(add_virtual_operand): Here.  Add offset, size, and for_clobber
	arguments.  Prune alias sets.
	(add_call_clobber_ops): Call add_virtual_operand.

2006-02-15  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/26300
	* combine.c (make_extraction): Bail out if ORIG_POS is negative.

	* tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
	than TREE_CODE as index into omp_clause_num_ops array.

2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>

	PR rtl-optimization/26184
	* modulo-sched.c (generate_reg_moves): Free bitmap vector
	uses_of_defs.
	* modulo-sched.c (sms_schedule): Free g_arr pointer.
	* modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
	must_precede, must_follow and tobe_scheduled.

	PR other/26147
	* opts.c (common_handle_option): Free new_option pointer.
	* df-core.c (df_analyze): Free postorder pointer.

2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>

	* Makefile.in: Fix the examples about the use of stamps

2006-02-15  Michael Matz  <matz@suse.de>

	PR middle-end/22275

	* stor-layout.c (layout_decl): Zero-width bitfields aren't
	influenced by maximum_field_alignment or DECL_PACKED.
	(update_alignment_for_field): Ditto.
	(place_field): Ditto.
	* doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
	this behaviour.

2006-02-15  Paolo Bonzini  <bonzini@gnu.org>

	* cfg.c (dump_flow_info): Get dump flags as an additional parameter.
	(debug_flow_info): Pass it.
	* alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
	* bb-reorder.c (reorder_basic_blocks): Likewise.
	* cfgcleanup.c (rest_of_handle_jump2): Likewise.
	* cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
	* flow.c (life_analysis, recompute_reg_usage): Likewise.
	* gcse.c (gcse_main, bypass_jumps): Likewise.
	* ifcvt.c (rest_of_handle_if_conversion): Likewise.
	* local-alloc.c (rest_of_handle_local_alloc): Likewise.
	* loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
	* profile.c (compute_branch_probabilities, branch_prob): Likewise.
	* rtl.h (dump_flow_info): Adjust prototype.
	* tracer.c (rest_of_handle_tracer, tracer): Likewise.
	* var-tracking.c (variable_tracking_main): Likewise.
	* passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
	* tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
	options.

2006-02-15  Marcin Dalecki <martin@dalecki.de>

	* tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
	construction.

2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/26209
	* tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
	* tree-cfgcleanup.c (cleanup_control_flow): Remove dead
	eh edges.
	* tree-cfg.c (replace_uses_by): Do not alter cfg.

2006-02-14  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/23670
	* fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
	(X,Y) and the corresponding symmetry related transformations.
	(fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
	(X,Y) and its symmetry related transformations.

2006-02-14  Roger Sayle  <roger@eyesopen.com>

	* dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
	and GEU.

2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>

	* simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.

2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	PR bootstrap/26053
	* configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
	support COMDAT group.
	* configure: Regenerate.

2006-02-14  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/26279
	PR middle-end/26280
	PR middle-end/26283
	* dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.

2006-02-14  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/26260

	* doc/invoke.texi (max-fields-for-field-sensitive): Document
	param.
	* params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
	* params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
	* tree-ssa-structalias.c (create_variable_info_for): Use
	MAX_FIELDS_FOR_FIELD_SENSITIVE.

2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>

	* doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
	Document.
	* tree-ssa-loop-niter.c (number_of_iterations_ne,
	number_of_iterations_lt, number_of_iterations_cond): Remember the shape
	of the ending condition.
	* tree-ssa-loop-manip.c: Include params.h.
	(build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
	tree_unroll_loop): New functions.
	* tree-pass.h (pass_loop_prefetch): Declare.
	* loop.c (rest_of_handle_loop_optimize): Test for
	-fprefetch-loop-arrays-rtl.
	* tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
	* timevar.def (TV_TREE_PREFETCH): New timevar.
	* tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
	pass_loop_prefetch): New.
	* tree-cfgcleanup.c: Include tree-scalar-evolution.h.
	(cleanup_tree_cfg_loop): Call scev_reset.
	* common.opt (fprefetch-loop-arrays-rtl): Add.
	* tree-ssa-loop-prefetch.c: New file.
	* tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
	(new_temp_expr_table): Initialize expr_vars.
	(free_temp_expr_table): Cleanup expr_vars.
	(check_replaceable, find_replaceable_in_bb): Prevent accumulating
	expressions from being merged into one.
	* tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
	(struct tree_niter_desc): Add control, bound and cmp fields.
	(tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
	Declare.
	* Makefile.in (tree-ssa-loop-prefetch.o): Add.
	(tree-cfgcleanup.o): Add SCEV_H dependency.
	(tree-ssa-loop-manip.o): Add PARAMS_H dependency.
	* passes.c (init_optimization_passes): Add pass_loop_prefetch.

2006-02-14  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26258
	* tree-ssa-structalias.c (find_func_aliases): Handle aggregates
	in PHI argument processing.

2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>

	* simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
	new expression in the requested machine mode.

2006-02-13  Roger Sayle  <roger@eyesopen.com>

	* optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
	directly, instead let do_compare_rtx_and_jump handle this for us.
	* expr.c (expand_expr_real_1): Likewise.
	* dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
	before do_jump_by_parts_greater.
	(do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
	* expr.h (do_jump_by_parts_greater_rtx): Delete prototype.

2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa/quadlib.c: Use defines instead of enum qfcmp_magic.

2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/26235
	* loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
	(invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
	format.

2006-02-13  Jeff Law  <law@redhat.com>

	* tree-vrp.c (extract_range_from_binary_expr): Remove handling of
	TRUTH_XOR_EPR.

2006-02-13  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/26092
	* gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
	twice if decl is a builtin.  When trying again, call get_callee_fndecl
	first to verify it is still a builtin.

2006-02-13  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (base_type_die): Don't add AT_name here.
	(subrange_type_die): Don't add AT_name here.
	(modified_type_die): Rearrange code flow.  Do add AT_name here.

2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/26247
	PR rtl-optimization/26248
	* loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.

2006-02-13  Richard Sandiford  <richard@codesourcery.com>

	* config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
	* config/fixtfdi.c: Likewise.
	* config/fixunstfdi.c: Likewise.
	* config/floatditf.c: Likewise.

2006-02-13  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/24427
	* fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
	into (X,C2) if C1 is a subset of the bits of C2.  Transform
	(X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
	(X&(C1&~C2))|C2.
	<BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).

2006-02-13  Josh Conner  <jconner@apple.com>

	PR target/25376
	* varasm.c (function_section): Check for section name before
	calling select_section on targets that define
	USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
	unlikely_text_section instead of hot_function_section if
	first_function_block_is_cold.

2006-02-13  J"orn Rennecke <joern.rennecke@st.com>

	PR middle-end/25335
	* reload1.c (gen_reload): Also use find_replacement in UNARY_P case.

2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/26222
	* function.c (assign_stack_temp_for_type): Do not reuse stack slots
	after tree->rtl expansion.
	* loop-invariant.c (move_invariant_reg): Use force_operand on rhs
	before passing it to emit_move_insn.

2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>

	* doc/invoke.texi (-Write-strings): Document that it is enabled by
	default.
	* c.opt (-Wwrite-strings): Declare variable warn_write_strings.
	Clarify documentation.
	* c-common.h (warn_write_strings): Remove.
 	* c-common.c (warn_write_strings): Likewise.
	* c-opts.c (c_common_init_options): Enable -Wwrite-strings by
	default for C++.

2006-02-12  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/25724
	* dojump.c (do_jump): Call do_compare_rtx_and_jump.
	(do_jump_parts_zero_rtx): New function renamed from
	do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
	(do_jump_parts_equality_rtx): New function split out from
	do_jump_parts_equality.  Old implementation renamed as above.
	Call do_jump_parts_zero_rtx if either operand is zero.
	(do_jump_parts_equality): Call do_jump_parts_equality_rtx to
	do all of the heavy lifting.
	(do_compare_rtx_and_jump): Handle multi-word comparisons by
	calling either do_jump_by_parts_greater_rtx or
	do_jump_by_parts_equality_rtx.
	* expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
	* expmed.c (do_cmp_and_jump): Now multi-word optimization has
	moved to do_compare_rtx_and_jump, call it directly.
	* stmt.c (do_jump_if_equal): Remove static prototype.  Add a
	mode argument.  Call do_compare_rtx_and_jump.
	(emit_case_nodes): Update calls to do_jump_if_equal.

2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/26225
	* loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.

2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/26232
	* loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.

2006-02-11  Jason Merrill  <jason@redhat.com>

	PR tree-opt/24365
	* tree-inline.c (declare_return_variable): Just don't use the
	modify target if it's a gimple complex reg and the return slot
	isn't.

2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* doc/contrib.texi: Update my entry.

2006-02-10  Geoffrey Keating  <geoffk@apple.com>

	* config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.

2006-02-10  Diego Novillo  <dnovillo@redhat.com>

	* tree-inline.c (estimate_num_insns_1): Make OpenMP directives
	expensive.

2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>

	* doc/invoke.texi (-floop-optimize2): Removed.
	* toplev.c (process_options): Remove handling of flag_loop_optimize2.
	* loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
	Test flag_branch_on_count_reg only if HAVE_doloop_end.
	* common.opt (floop-optimize2): Removed.
	(fmove-loop-invariants): Enabled by default.

2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-if-conv.c (combine_blocks): Free the result of
	get_loop_exit_edges.

2006-02-10  Jeff Law  <law@redhat.com>

	* fold-const.c (tree_expr_nonzero_p): Fix thinko.

	PR tree-optimization/26213
	* tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
	loop trying to follow SSA_NAME_VALUE chains.

2006-02-10  Richard Guenther  <rguenther@suse.de>

	* tree-dfa.c (get_ref_base_and_extent): When computing maxsize
	deal with structures that end in implicitly variable sized arrays.

2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/24762
	* df-scan.c (df_bb_refs_record): Record correct registers defined on
	eh edges.

2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
	(struct ivopts_data): Add regs_used field.
	(tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
	(ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
	instead of loop_data->regs_used;
	(free_loop_data): Do not free aux fields for loops.
	(tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
	and tree_ssa_iv_optimize_finalize.

2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.

2006-02-09  J"orn Rennecke <joern.rennecke@st.com>

	PR target/26141
	* sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
	computing the effective result type.

2006-02-09  J"orn Rennecke <joern.rennecke@st.com>

	PR inline-asm/16194
	* tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
	(tree_overlaps_hard_reg_set): Declare.
	* stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
	type and signature to match function type expected by walk_tree.
	(tree_overlaps_hard_reg_set): New function.
	(decl_conflicts_with_clobbers_p): Rename to:
	(tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
	Use tree_overlaps_hard_reg_set.  Changed caller.
	* doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
	decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
	* cris.c (cris_md_asm_clobbers): Likewise.

2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>

	* reload1.c (emit_input_reload_insns): Delete code that tries to
	inherit using find_equiv_reg.

2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>

	* c-common.h (flag_const_strings): Don't declare.
	* c-common.c (flag_const_strings): Remove.
	* c.opt (fconst_strings): Remove.
	* c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
	<OPT_Wwrite_strings>: Don't set flag_const_strings.
	(c_common_init_options): Don't set flag_const_strings.
	* doc/invoke.texi (-fno-const-strings): Remove documentation.

2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>

	* arm.md (tlobits_cbranch): New pattern.
	* arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
	testing a single bit.

2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/26179
	* tree-ssa-pre.c (create_component_ref_by_pieces):
	Handle RETURN_DECL like VAR_DECL.

2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>

	PR middle-end/26134
	* fold-const.c (fold_indirect_ref_1): Fold
	"*(foo *)&complexfoo" to "__real__ complexfoo"
	and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".

2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>

	* tree-flow-inline.h (var_can_have_subvars):
	Volatile variables should not have subvariables.

2006-02-09  Diego Novillo  <dnovillo@redhat.com>

	PR 26180
	* tree-vrp.c (vrp_int_const_binop): Detect overflow when
	multiplying unsigned values.
	Tidy comments.

2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* config/sparc/sparc.c (tls_call_delay): Fix oversight.

2006-02-08  Jason Merrill  <jason@redhat.com>

	PR c++/25979
	* tree.def: Elaborate on difference from MODIFY_EXPR.
	* doc/c-tree.texi (INIT_EXPR): Likewise.
	* gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
	(gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
	(gimplify_target_expr): Likewise.
	(gimplify_cond_expr): Remove target handling.
	(gimplify_modify_expr): Don't clobber INIT_EXPR code here.
	(gimplify_expr): Clobber it here.
	(gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
	Do return slot optimization if we have an INIT_EXPR.

	PR tree-opt/24365
	* tree-inline.c (declare_return_variable): Also clear
	DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.

	PR c++/16405
	* gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.

	PR middle-end/22439
	* gimplify.c (gimplify_one_sizepos): Fix typo.

2006-02-08  Jeff Law  <law@redhat.com>

	PR tree-optimization/21417
	* tree-ssa-threadedge.c (thread_across_edge): Reject threading
	across a backedge if the control statement at the end of the
	block is data dependent on other statements in the same block.
	(record_temporary_equivalences_from_stmts): Remove over-conservative
	test for threading across backedges.

	* tree-ssa-dce.c (remove_dead_statement): When removing a dead
	control statement, handle all three special cases in the same
	manner as they all have the same desired solution.  No longer
	special case edge flag updating when the post dominator is
	the exit block.

2006-02-08  Roger Sayle  <roger@eyesopen.com>

	* tree.def (CHAR_TYPE): Remove.
	* dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
	* dwarf2out.c (base_type_die, is_base_type): Likewise.
	(gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
	(gen_string_type_die): Delete unreachable function.

	* tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
	* tree.c (build_int_cst_wide, type_contains_placeholder_1,
	type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
	* tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
	* builtins.c (type_to_class): Likewise.
	* fold-const.c (fold_convert, build_range_check,
	merge_ranges): Likewise.
	* expr.c (count_type_elements): Likewise.
	* c-pretty-print.c (pp_c_type_specifier): Likewise.
	* stor-layout.c (layout_type): Likewise.
	* ipa-type-escape.c (type_to_consider): Likewise.
	* gimplify.c (omp_firstprivatize_type_sizes,
	gimplify_type_sizes): Likewise.
	* explow.c (promote_mode): Likewise.
	* tree-sra.c (is_sra_scalar_type): Likewise.
	* varasm.c (output_constant): Likewise.
	* tree-inline.c (remap_type_1): Likewise.
	* convert.c (convert_to_pointer, convert_to_real,
	convert_to_integer, convert_to_complex): Likewise.

2006-02-08  Daniel Berlin  <dberlin@dberlin.org>

	* df-scan.c (df_def_record_1): A set destination may
	be a parallel regardless of mode.

2006-02-08  Roger Sayle  <roger@eyesopen.com>

	PR target/22209
	* config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
	* config/mips/_tilib.c: Remove.
	* config/fixtfdi.c: New libgcc source file.
	* config/fixunstfdi.c: New source file.
	* config/floatditf.c: New source file.
	* config/floatunditf.c: New souce file.
	* config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
	files above instead of config/mips/_tilib.c.
	* config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.

2006-02-08  Jeff Law  <law@redhat.com>

	PR tree-optimization/26169
	* tree-vrp.c (execute_vrp): Perform any queued SSA updates before
	threading jumps.

2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>

	* df.h (DF_REG_SIZE): Return the length of the initialized
	part of the array.

2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>

	* gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
	__muldf3): Return a correctly signed zero.

2006-02-08  Paolo Bonzini  <bonzini@gnu.org>

	* passes.c (register_one_dump_file): Accept the current properties
	instead of pass number.  Adjust call to dump_register.  Remove
	duplicated code.
	(register_dump_files): Now a wrapper around...
	(register_dump_files_1): ... this one.  Do not modify the pass
	structure.
	(next_pass_1): Cosmetic fix.
	(execute_todo): Keep second parameter only.  Use curr_properties
	instead of fetching it from the pass structure.  Check and set
	last_verified.
	(execute_one_pass): Handle TODO_set_props.  Use curr_properties
	instead of fetching it from the pass structure.  Fix calls to
	execute_todo.  Update curr_properties and initialize .vcg RTL dump
	after running the pass.  Reset last_verified.
	* tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
	at the beginning.
	(FIRST_AUTO_NUMBERED_DUMP): New.
	(dump_register): Remove "num" parameter, assign it within the
	function.
	(get_dump_file_name): Modify template for dumps.
	* tree-dump.h (dump_register): Adjust prototype.
	* tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
	(PROP_trees): Add PROP_gimple_lomp.
	(TODO_set_props): New.
	* gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
	* tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
	* cfgexpand.c (pass_expand): Destroy PROP_trees.

2006-02-08  Jakub Jelinek  <jakub@redhat.com>

	* config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
	(sparc64-*-linux*): Likewise.
	* config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
	* config/sparc/t-linux: New file.
	* config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
	__floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
	(__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
	-m32 -mlong-double-128.

	* config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
	* config/alpha/t-linux: New file.
	* config/alpha/libgcc-alpha-ldbl.ver: New file.

	* config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
	__LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
	(CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
	* config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
	__LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
	(CPP_ARCH32_SPEC): Remove.

2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>

	PR tree-optimization/26145
	* tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
	bbs pointer.

2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/26109
	* pa.c (attr_length_indirect_call): Don't return length 8 for distances
	>= 240000 when generating code for SOM runtime.
	(output_indirect_call): Don't use "b,l" instruction for indirect calls
	to $$dyncall when generating code for SOM runtime..

2006-02-07  Dirk Mueller  <dmueller@suse.com>

	PR c++/18150
	* doc/invoke.texi (-Wsequence-point): Update documentation
	that -Wsequence-point is implemented for C++ as well.

2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
	* config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
	(LIB_SPEC): Likewise.
	* doc/invoke.texi (SPARC options): Document -pthread.

2006-02-07  Geoffrey Keating  <geoffk@apple.com>

	* config/i386/i386.c (ix86_delegitimize_address): Support Darwin
	PIC addresses.

2006-02-07  Roger Sayle  <roger@eyesopen.com>

	* config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
	Correct comment describing BOOLEAN_TYPE.

2006-02-07  Dirk Mueller  <dmueller@suse.com>

	* c.opt: C++ frontend supports -Wdiv-by-zero.
	* c-opts.c (c_common_handle_option): Remove dead case.

2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* configure.ac (TLS assembler check): Do not enable TLS by
	default on SPARC/Solaris before version 10.
	* configure: Regenerate.

2006-02-07  David Edelsohn  <edelsohn@gnu.org>

	* doc/invoke.texi (xl-compat): Document conversion and support
	routine names.

2006-02-07  Jeff Law  <law@redhat.com>

	* tree-vrp.c (find_conditional_asserts): Update comments.
	(simplify_stmt_for_jump_threading): New.
	(identify_jump_threads, finalize_jump_threads): New.
	(vrp_finalize): Call identify_jump_threads.
	(execute_vrp): Call finalize_jump_threads.
	* tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
	(vrp_element, vrp_data, vrp_element_p): Remove.
	(vrp_hash_elt, vrp_variables_stack): Remove.
	(vrp_hash, vrp_eq, record_range): Remove.
	(simplify_cond_and_lookup_avail_expr): Remove.
	(extract_range_from_cond): Remove.
	(thread_across_edge): Relocated into tree-ssa-threadedge.c.
	(simplify_stmt_for_jump_threading): New.
	(dom_thread_across_edge): New wrapper.
	(tree_ssa_dominator_optimize): No longer initialize or
	finalize any of the VRP datastructures.  Remove iteration
	step and simplify as a result of removal of iteration step.
	(pass_dominator): Perform a cfg cleanup after DOM.
	(dom_opt_finalize_block): Use the new common routines
	for threading jumps.  Simplify stack management slightly.
	No longer need to unwind VRP state.
	(record_equivalences_from_incoming_edge): No longer record
	VRP information.
	(eliminate_redundant_computations): No longer call
	simplify_cond_and_lookup_avail_expr.
	* tree-flow.h (potentially_threadable_block): Prototype.
	(thread_across_edge): Likewise.
	* Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
	(tree-ssa-threadedge.o): Add dependencies.
	* tree-ssa-threadedge.c: New file.
	* passes.c (init_optimization_passes): Merge PHIs before
	calling VRP.  Run VRP again late in the SSA optimization pipeline.

2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* df-core.c (df_set_blocks): Do not dereference function pointers.
	(df_finish1): Likewise.
	(df_hybrid_search_forward): Likewise.
	(df_hybrid_search_backward): Likewise.
	(df_iterative_dataflow): Likewise.
	(df_analyze_problem): Likewise.
	(df_compact_blocks): Likewise.
	(df_dump): Likewise.
	* df-scan.c (df_rescan_blocks): Likewise.
	(df_record_entry_block_defs): Likewise.

	* genconditions.c (write_conditions): Guard the definition of
	'insn_conditions' with the check on GCC version.
	(write_writer): Guard the traversal 'insn_conditions' with
	the check on GCC version.

2006-02-07  Richard Guenther  <rguenther@suse.de>

	PR c++/26140
	Revert
	2006-01-30  Richard Guenther  <rguenther@suse.de>
 	PR c++/23372
 	* gimplify.c (gimplify_target_expr): Handle easy cases
 	without creating a temporary.

2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>

	* sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
	use of float in probability computations.  Use edge probabilities
	in place of statically computed probabilities.
	(min_spec_prob): New static variable.
	(schedule_insns): Initialize it.
	(GET_SRC_PROB): Removed.
	* doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.

2006-02-07  Alexandre Oliva  <aoliva@redhat.com>

	PR debug/24444
	* config/ia64/unwind-ia64.c: Revert last change.
	* config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
	(INCOMING_FRAME_SP_OFFSET): Define.

2006-02-06  Roger Sayle  <roger@eyesopen.com>

	* config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.

2006-02-07  Ben Elliston  <bje@au.ibm.com>

	* config/i386/i386.c (ix86_scalar_mode_supported_p): New.
	(TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
	(classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
	(ix86_return_in_memory): Handle TDmode.
	(ix86_libcall_value): Handle SDmode, DDmode, TDmode.
	(ix86_value_regno): Return non-TDmode decimal float modes in %eax.

2006-02-06  Richard Sandiford  <richard@codesourcery.com>

	* reorg.c (dbr_schedule): Use dump_file instead of file.

2006-02-06  Steve Ellcey  <sje@cup.hp.com>

	PR target/25917
	* config/ia64/predicates.md (extr_len_operand): New predicate.
	* config/ia64/ia64.md (extv): Tighten constraints.
	(extzv): Ditto.
	(*tbit_and_2): Ditto.
	(*tbit_and_3): Ditto.
	(*tbit_or_2): Ditto.
	(*tbit_or_3): Ditto.
	(*bit_zero): Ditto.
	(*bit_one): Ditto.

2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>

	PR target/23359
	* config/i386/i386.md (trap): Use ASM_SHORT instead of .word.

2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-vrp.c (execute_vrp): Do not pass dump argument to.
	loop_optimizer_init and loop_optimizer_finalize
	* tree-ssa-sink.c (execute_sink_code): Ditto.
	* tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
	* tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
	tree_ssa_loop_done): Ditto.
	* tree-ssa-pre.c (init_pre, fini_pre): Ditto.
	* sched-ebb.c: Include output.h.
	(schedule_ebbs): Do not use dump argument.
	* value-prof.h (struct profile_hooks): Remove profile_dump_file.
	* loop.c (loop_dump_stream): Removed.
	(loop_optimize, rest_of_handle_loop_optimize): Do not use dump
	argument.
	(scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
	emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
	final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
	loop_iterations, strength_reduce, record_biv, record_giv,
	final_giv_value, check_final_value, check_ext_dependent_givs,
	combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
	try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
	dump_file instead of loop_dump_stream.
	* ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
	argument dump_file.
	* reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
	dump argument.
	* flow.c (life_analysis, rest_of_handle_life): Ditto.
	* haifa-sched.c: Include output.h
	(schedule_insns, sched_init): Do not use dump argument.
	* mode-switching.c (optimize_mode_switching): Ditto.
	* modulo-sched.c (stats_file): Removed.
	(print_node_sched_params): Do not call argument dump_file.
	(sms_schedule_by_order, loop_canon_p, sms_schedule,
	rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
	of stats_file.
	* cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
	use dump argument.
	* loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
	rtl_loop_init, rtl_loop_done): Ditto.
	* global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
	* predict.c (combine_predictions_for_bb, tree_estimate_probability):
	Ditto.
	* recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
	* lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
	* regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
	rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
	* emit-rtl.c (renumber_insns): Ditto.
	* cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
	expand_gimple_basic_block, tree_expand_cfg): Ditto.
	* regclass.c (regclass): Ditto.
	* tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
	remove_ssa_form, rewrite_out_of_ssa): Ditto.
	* reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
	convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
	Ditto.
	* sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
	* local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
	to regclass.
	* gcse.c (gcse_file, debug_stderr): Removed.
	(gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
	rest_of_handle_gcse): Do not use dump argument.
	(cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
	one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
	pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
	compute_code_hoist_vbeinout, compute_code_hoist_data,
	one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
	compute_store_table, build_store_vectors, insert_insn_start_bb,
	insert_store, remove_reachable_equiv_notes, replace_store_insn,
	store_motion): Use dump_file instead of gcse_file.
	* ipa-type-escape.c (type_escape_execute): Remove debugging comments.
	* profile.c (profile_dump_file): Removed.
	(branch_prob): Use dump_file instead of profile_dump_file.
	* ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
	dump_file.
	* tree-ssa-copy.c (dump_copy_of): Ditto.
	* rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
	dump file to life_analysis.
	* bt-load.c (branch_target_load_optimize): Ditto.
	* cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
	renumber_insns.
	* rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
	regclass, dbr_schedule): Declaration changed.
	* sched-int.h (sched_init): Declaration changed.
	* tree-profile.c (tree_profile_dump_file): Removed.
	(tree_profile_hooks): Removed profile_dump_file hook.
	* rtl-profile (rtl_profile_dump_file): Removed.
	(rtl_profile_hooks): emoved profile_dump_file hook.
	* cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
	changed.
	* c-gimplify.c (c_genericize): Do not call local variable dump_file.
	* tree-cfg.c (build_tree_cfg): Ditto.
	* Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
	* basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
	Declaration changed.
	* config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
	life_analysis and schedule_insns.
	* config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
	life_analysis.
	* config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
	dbr_schedule.
	* config/mips/mips.c (mips_reorg): Ditto.
	* config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
	schedule_ebbs.

2006-02-06  Aldy Hernandez  <aldyh@redhat.com>

	* config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
	(s390_mangle_fundamental_type): New.
	* config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
	Define.

	* config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
	(alpha_mangle_fundamental_type): New.
	* config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
	Define.

	* config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
	Define.
	* config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
	Define.
	* config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
	(sparc_mangle_fundamental_type): New.

2006-02-06  Jakub Jelinek  <jakub@redhat.com>

	* config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
	(s390x-*-linux*): Likewise.
	* config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
	* config/s390/t-linux: New file.

2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
	sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.

2006-02-06  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
	(ANTIC_SAFE_LOADS): New macro.
	(find_or_generate_expression): Add prototype.
	(set_contains_value): Allow null set for sake of not always having
	to allocate ANTIC_SAFE_LOADS.
	(phi_translate): Move placement of AGGREGATE_TYPE_P check.
	Allow COMPONENT_REF too.
	(valid_in_set): Allow COMPONENT_REF.
	Check ANTIC_SAFE_LOADS too.
	(compute_antic_aux): Print out ANTIC_SAFE_LOADS.
	(compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
	rename.
	(can_PRE_operation): Add COMPONENT_REF.
	(create_component_ref_by_pieces): New function.
	(create_expression_by_pieces): Use create_component_ref_by_pieces.
	(insert_aux): Move AGGREGATE_TYPE_P check here.
	(compute_avail): Set bb local stmt uids.
	(pass_pre): Use TODO_update_ssa_only_virtuals.

2006-02-06  Ben Elliston  <bje@au.ibm.com>

	* configure.ac: Unconditionally disable decimal float by default.
	* configure: Regenerate.

2006-02-06  Ben Elliston  <bje@au.ibm.com>

	* read-rtl.c (read_name): Terminate reading on EOF.

2006-02-06  Ben Elliston  <bje@au.ibm.com>

	* dfp.c (decimal_real_arithmetic): Change second argument type
	from int to enum tree_code. Do not always return true, but now
	return result of any call to decimal_do helper functions.
	* dfp.h (decimal_real_arithmetic): Update prototype.

2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.

2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/25251
	* tree-cfg.c (cleanup_dead_labels): Also don't remove
	forced labels.

2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-vrp.c (cfg_loops): Removed.
	(adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
	Use current_loops instead of cfg_loops.  Pass flags to
	loop_optimizer_init.
	* cfgloopmanip.c (fix_loop_structure): Update only available
	information.
	* tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
	loop_optimizer_init.
	* modulo-sched.c (build_loops_structure): Removed.
	(sms_schedule): Use loop_optimizer_init.
	* loop-init.c (loop_optimizer_init): Use flags to determine
	which properties of loops to prepare.
	(rtl_loop_init): Pass flags to loop_optimizer_init.
	* tree-ssa-sink.c (execute_sink_code): Ditto.
	* tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
	* tree-ssa-pre.c (init_pre): Ditto.
	* cfgloop.h (LOOPS_NORMAL): New.
	(loop_optimizer_init): Declaration changed.

2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
	* config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
	pa/t-pa.
	* config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
	pa/t-pa.
	* config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
	pa/x-ada.
	* pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
	* pa/t-pa64: Delete quadlib.c rule.
	* pa/x-ada: Revert last change.
	* pa/t-pa: Revert last change.  Delete quadlib.c rule.

2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/26087
	* rtlanal.c (canonicalize_condition): Do not cross basic block
	boundaries.

2006-02-04  Alexandre Oliva  <aoliva@redhat.com>

	PR debug/24444
	* config/ia64/ia64.c: Include debug.h.
	(MAX_ARTIFICIAL_LABEL_BYTES): New.
	(ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
	(IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
	(process_epilogue, process_set, process_for_unwind_directive):
	Output unwind info only if requested.  Add CFA info if requested.
	Add new arguments as needed.  Adjust callers.
	* config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
	incorrect default.
	(DWARF2_FRAME_INFO): Define to zero.
	* config/ia64/unwind-ia64.c: Remove code that compensated for
	the CFA offset error fixed above.
	* config/ia64/t-ia64 (ia64.o): Depend on debug.h.
	* dwarf2out.c (DWARF2_FRAME_INFO): Define default.
	(dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
	-funwind-tables and -fexceptions to enable frame info.
	(dwarf2out_frame_init): Define initial CFA even if
	DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
	DWARF2_UNWIND_INFO is nonzero, not just defined.
	(dwarf2out_frame_finish): Output non-EH call frame info only
	if DWARF2_FRAME_INFO is nonzero.
	(convert_cfa_to_loc_list,
	compute_frame_pointer_to_cfa_displacement): Define even if
	unwind info is not supported.
	(gen_subprogram_die): Use the above unconditionally.  Remove
	legacy alternate code.
	* toplev.c (compile_file): Compile in call to
	dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
	(lang_dependent_init): Ditto for dwarf2out_frame_init.

2006-02-04  David Edelsohn  <edelsohn@gnu.org>
	    Jakub Jelinek  <jakub@redhat.com>

	* config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
	IBM extended float format long double as "g" on powerpc*-linux.

2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/25926
	* pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
	* pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.

2006-02-03  Jason Merrill  <jason@redhat.com>

	PR c++/25979
	* gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.

	PR middle-end/25977
	* gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
	on the return slot if it's an NRV.

2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
	(dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
	rewrite_use): Do not handle USE_OUTER.
	(find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
	add_iv_outer_candidates, may_replace_final_value,
	determine_use_iv_cost_outer, rewrite_use_outer): Removed.
	(find_interesting_uses_op): Functionality of
	find_interesting_uses_outer_or_nonlin moved here.
	(find_interesting_uses_outside): Use find_interesting_uses_op.

2006-02-03  Alan Modra  <amodra@bigpond.net.au>

	PR target/25960
	* config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.

2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
	    Ulrich Weigand  <uweigand@de.ibm.com>

	PR target/25864
	* config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
	"x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
	* config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
	* config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
	and dxr fields.
	(z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
	(s390_rtx_costs): Use the new fields to calculate rtx costs.
	(s390_secondary_input_reload_class, s390_secondary_output_reload_class):
	Define secondary reloads for TFmode moves.
	(constant_modes): Add TFmode.
	(NR_C_MODES): Set to 8.
	* config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
	builtin define.
	(LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
	(LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
	(HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
	CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
	* config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
	fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
	(FPR mode macro): Add TFmode.
	(DSF mode macro): New.
	(<de>, <dee> mode attributes): Removed.
	(<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
	("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
	"*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
	"floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
	"*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
	"*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
	"*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
	"*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
	"*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
	"*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
	"*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
	"*negabs<mode>2", "sqrt<mode>2"):
	Changed <de> to <xde>. R constraint replaced by <Rf>.
	("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
	<Rf>.
	("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
	("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
	("*movtf_64", "*movtf_31"): New insn definitions followed by 5
	splitters.
	("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
	"extenddftf2", "extendsftf2"): New expanders.
	("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
	"*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
	"*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
	* config/s390/s390.opt (mlong-double-128, mlong-double-64):
	New options.
	* config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
	* config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
	__fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
	__floatditf): Add a GCC_4.1.0 symbol version tag.
	* doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
	the new options.

2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>

	PR target/25377
	* config/i386/i386.c (ix86_function_ok_for_sibcall):
	Use targetm.binds_local_p instead of TREE_PUBLIC.

2006-02-02  Roger Sayle  <roger@eyesopen.com>

	* tree.h (TYPE_STRING_FLAG): Document that this field may be used
	on INTEGER_TYPEs to indicate that it denotes a character type.
	* tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
	signed_char_type_node, unsigned_char_type_node and char_type_node.
	* dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
	INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
	a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.

2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
	    Daniel Berlin  <dberlin@dberlin.org>

	* tree-tailcall.c (arg_needs_copy_p): New function.
	(eliminate_tail_call): Use arg_needs_copy_p.
	(tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
	(add_virtual_phis): New function.

2006-02-02  Jakub Jelinek  <jakub@redhat.com>

	* config/sparc/sparc.c (sparc_output_scratch_registers): Use
	#ignore instead of #scratch for %g7 .register directive.

2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>

	* config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
	object files.

2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>

	* flow.c (calculate_global_regs_live): Assert that there aren't any
	EDGE_FAKE edges.

2006-02-02  Paolo Bonzini  <bonzini@gnu.org>

	* tree-flow-inline.h (bsi_after_labels): Rewrite, return
	what its name says.
	* lambda-code.c (perfect_nestify): Use bsi_insert_before on
	bsi_after_labels iterator.
	* tree-if-conv.c (find_phi_replacement_condition,
	replace_phi_with_cond_modify_expr): Likewise.
	* tree-scalar-evolution.c (scev_const_prop): Likewise.
	* tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.

2006-02-02  Diego Novillo  <dnovillo@redhat.com>

	* tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.

2006-02-02  Diego Novillo  <dnovillo@redhat.com>

	PR 25990
	* tree-cfg.c (move_block_to_fn): Clear out the basic block
	array after growing it.

2006-02-01  Steve Ellcey  <sje@cup.hp.com>

	PR middle-end/24901
	* fold-const.c (fold_checksum_tree): Change type of buf.

2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>

	* reload.c (push_secondary_reload): Initialize t_icode.

2006-02-01  Jakub Jelinek  <jakub@redhat.com>

	* config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
	-msoft-float -mlong-double-128 only issue a warning, but don't
	swich to DFmode long double.

2006-02-01  Hans-Peter Nilsson  <hp@axis.com>

	* cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
	has a constant equivalent, iterate over equivalents for arg0,
	calling simplify_relational_operation and if there's a result
	cheaper than X, apply fold_rtx and return the result.

2006-02-01  Jan Hubicka  <jh@suse.cz>

	* opts.c (no_unit_at_a_time_default): New global variable.
	(decode_options): Use it.
	* opts.h (no_unit_at_a_time_default): Declare.

2006-02-01  Paul Brook  <paul@codesourcery.com>

	* function.c (assign_parm_setup_reg): Use function argument promotion
	rules.
	* expr.c (expand_expr_real_1): Use function argument promotion rules
	for PARM_DECLs.

2006-02-01  Steve Ellcey  <sje@cup.hp.com>

	* gcc.c (process_command): Change j to 'unsigned int'.

2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>

	PR middle-end/26001
	* expr.c (expand_expr_real_1) <case ARRAY_REF>:
	Use the corrected index for the character
	out of the string constant.

2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>

	* mode-switching.c (optimize_mode_switching): Fix size
	allocated for bb_info[n_entities].

2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>

	* gcc.c (main): Correct type that is allocated for
	explicit_link_files.

2006-01-31  Jakub Jelinek  <jakub@redhat.com>

	* config/s390/s390.c (init_alignment_context): Set
	ALIAS_SET_MEMORY_BARRIER on the MEM.
	* config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.

2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>

	PR middle-end/25933
	* loop-unroll.c (unroll_loop_runtime_iterations): Free
	dom_bbs pointer.
	* tree-ssa-live.c (type_var_init): Allocate bitmap after
	call to tpa_init.

2006-01-31  Marcin Dalecki  <martin@dalecki.de>

	* tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
	* regrename.c: Ditto.
	* tree-ssa-loop-im.c: Ditto.
	* tree-dump.c: Ditto.
	* tree-complex.c: Ditto.
	* genrecog.c: Ditto.
	* tree-ssa-threadupdate.c: Ditto.
	* tracer.c: Ditto.
	* java/class.c: Ditto.
	* java/jcf-parse.c: Ditto.
	* java/resource.c: Ditto.
	* java/except.c: Ditto.
	* java/jvspec.c: Ditto.
	* java/jcf-write.c: Ditto.
	* java/jcf-path.c: Ditto.
	* java/gjavah.c: Ditto.
	* java/zextract.c: Ditto.
	* java/jcf-io.c: Ditto.
	* java/jcf.h: Ditto.
	* java/buffer.c: Ditto.
	* java/lang.c: Ditto.
	* java/parse-scan.y: Ditto.
	* java/lex.c: Ditto.
	* java/lex.h: Ditto.
	* cfgloopmanip.c: Ditto.
	* postreload-gcse.c: Ditto.
	* tree-ssa-loop-manip.c: Ditto.
	* postreload.c: Ditto.
	* tree-ssa-loop-ch.c: Ditto.
	* loop.c: Ditto.
	* ipa-cp.c: Ditto.
	* cppspec.c: Ditto.
	* diagnostic.c: Ditto.
	* final.c: Ditto.
	* genoutput.c: Ditto.
	* gcc.c: Ditto.
	* cfghooks.c: Ditto.
	* cfgloopanal.c: Ditto.
	* objc/objc-act.c: Ditto.
	* gcov.c: Ditto.
	* genextract.c: Ditto.
	* genautomata.c: Ditto.
	* pretty-print.c: Ditto.
	* genemit.c: Ditto.
	* cgraphunit.c: Ditto.
	* flow.c: Ditto.
	* df-scan.c: Ditto.
	* haifa-sched.c: Ditto.
	* dominance.c: Ditto.
	* dbxout.c: Ditto.
	* tree-ssa-loop-ivopts.c: Ditto.
	* df-core.c: Ditto.
	* mode-switching.c: Ditto.
	* modulo-sched.c: Ditto.
	* graph.c: Ditto.
	* ipa-pure-const.c: Ditto.
	* cse.c: Ditto.
	* fix-header.c: Ditto.
	* web.c: Ditto.
	* tree-stdarg.c: Ditto.
	* ipa-utils.c: Ditto.
	* loop-init.c: Ditto.
	* ipa-inline.c: Ditto.
	* cfganal.c: Ditto.
	* global.c: Ditto.
	* alloc-pool.c: Ditto.
	* dwarf2out.c: Ditto.
	* opts.c: Ditto.
	* genattrtab.c: Ditto.
	* tree-ssa-loop-ivcanon.c: Ditto.
	* predict.c: Ditto.
	* timevar.c: Ditto.
	* lcm.c: Ditto.
	* fortran/gfortranspec.c: Ditto.
	* regmove.c: Ditto.
	* local-alloc.c: Ditto.
	* langhooks.c: Ditto.
	* function.c: Ditto.
	* tree-vectorizer.c: Ditto.
	* gcse.c: Ditto.
	* ipa-type-escape.c: Ditto.
	* alias.c: Ditto.
	* tree-if-conv.c: Ditto.
	* profile.c: Ditto.
	* ipa.c: Ditto.
	* tree-data-ref.c: Ditto.
	* loop-unroll.c: Ditto.
	* treelang/treetree.c: Ditto.
	* calls.c: Ditto.
	* bt-load.c: Ditto.
	* ggc-common.c: Ditto.
	* except.c: Ditto.
	* coverage.c: Ditto.
	* cselib.c: Ditto.
	* tree-cfgcleanup.c: Ditto.
	* tree-ssa-pre.c: Ditto.
	* cfgcleanup.c: Ditto.
	* loop-invariant.c: Ditto.
	* loop-iv.c: Ditto.
	* ipa-prop.c: Ditto.
	* print-tree.c: Ditto.
	* conflict.c: Ditto.
	* ggc-page.c: Ditto.
	* sched-deps.c: Ditto.
	* regclass.c: Ditto.
	* tree-object-size.c: Ditto.
	* combine.c: Ditto.
	* bb-reorder.c: Ditto.
	* resource.c: Ditto.
	* var-tracking.c: Ditto.
	* cfgloop.c: Ditto.
	* df-problems.c: Ditto.
	* reg-stack.c: Ditto.
	* tlink.c: Ditto.
	* gccspec.c: Ditto.
	* sched-rgn.c: Ditto.
	* tree-ssa-structalias.c: Ditto.
	* tree-ssa-reassoc.c: Ditto.
	* config/darwin-c.c: Ditto.
	* config/darwin.c: Ditto.
	* config/arm/arm.c: Ditto.
	* cfgrtl.c: Ditto.
	* collect2.c: Ditto.
	* reload1.c: Ditto.

2006-01-31  Nicolas Pitre  <nico@cam.org>

	* arm.md (smaxsi3): Make aware of smax_m1.
	(smax_m1): New.

2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>

	* gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.

2006-01-31  Richard Guenther  <rguenther@suse.de>

	* doc/invoke.texi (-msselibm): Document.
	* target.h (expand_library_builtin): New target hook.
	* builtins.c (expand_builtin): Use expand_library_builtin.
	(default_expand_library_builtin): New function.
	* gcc.c (LINK_GCC_MATH_SPEC): Define.
	(LINK_COMMAND_SPEC): Handle %(link_gcc_math).
	(link_gcc_math_spec): Declare.
	(static_specs): Add link_gcc_math_spec.
	* expr.h (default_expand_library_builtin): Declare.
	* target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
	(TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
	* config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
	* config/i386/i386.opt (msselibm): New target option.
	* config/i386/i386.c (ix86_builtin_function_variants): New array.
	(ix86_init_sse_abi_builtins): New function.
	(ix86_expand_library_builtin): Likewise.
	(TARGET_EXPAND_LIBRARY_BUILTIN): Define.
	(override_options): Handle error conditions wrt -msselibm.
	(ix86_builtins): Add function codes for SSE2 ABI builtins.
	(ix86_init_builtins): Call ix86_init_sse_abi_builtins.
	* doc/extend.texi (__builtin_sse2_*): Document new target specific
	builtins.

2006-01-31  Richard Guenther  <rguenther@suse.de>
	Paolo Bonzini  <bonzini@gnu.org>

	* doc/install.texi (--disable-libgcc-math): Document.

2006-01-30  Marcin Dalecki  <martin@dalecki.de>

	* expr.h (expand_normal): new inline function.
	* builtins.c: use it, use EXPAND_NORMAL explicitely.
	* dojump.c: use it.
	* dwarf2out.c: use it.
	* expr.c: use it.
	* calls.c: use it.
	* expmed.c: use it.
	* except.c: use it.
	* config/sparc/sparc.c: use it.
	* config/i386/i386.c: use it.
	* config/rs6000/rs6000.c: use it.
	* config/arm/arm.c: use it.
	* config/mips/mips.c: use it.
	* stmt.c: use it, use EXPAND_NORMAL explicitely.

2006-01-30  Roger Sayle  <roger@eyesopen.com>

	* config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
	argv to the appropriate type.

2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
	unreachable code.

2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>

	PR target/26018
	* config/s390/s390.c (struct machine_function): New flag
	decomposed_literal_pool_addresses_ok_p.
	(s390_reorg): Set it before final stage of literal pool transforms.
	(s390_decompose_address): Only accept displacements of the form
	(minus (label_ref ...) (label_ref ...)) if that flag is set.

2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>

	* optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
	the comparison routine return.

2006-01-30  Michael Matz  <matz@suse.de>

	* global.c (find_reg): Only evict for global regs.
	Take n_refs into account and dump more info.

2006-01-30  J"orn Rennecke <joern.rennecke@st.com>

	PR target/14798:
	* sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
	(pragma_trap, pragma_nosave_low_regs): Likewise.
	(current_function_anonymous_args): Likewise.
	(sh_deferred_function_attributes): New variable.
	(sh_deferred_function_attributes_tail): Likewise.
	(print_operand): For '@', look up trap_exit attribute.
	(calc_live_regs): Look up trapa_handler attribute.  For trapa
	handlers, save/restore fpscr, but don't do any other
	interrupt-specific saves.
	Don't save r0..r7 if the nosave_low_regs attribute is in effect.
	Fix check for partially saved registers to check for SHmedia.
	(sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
	(sh_output_function_epilogue): Don't clear any of the removed
	variables.
	(sh_insert_attributes): Don't check pragma_interrupt.
	Insert deferred attributes.  Check that interrupt attribute is
	present for other attributes that require its presence.
	(sh_attribute_table): Add new attributes trapa_handler and
	nosave_low_regs.
	(sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
	Don't check for pragma_interrupt.  Don't store argument.
	* sh.h (pragma_interrupt, sp_switch): Don't declare.
	(sh_deferred_function_attributes): Declare.
	(sh_deferred_function_attributes_tail): Likewise.
	* sh.md (sp_switch_1): Add operand.  Change generator caller.
	(sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
	(*return_i): Don't use when trap_exit attribute is in effect.
	(*return_trapa): New insn pattern.
	* sh-c.c: New file.
	* config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
	setting c_target_objs and cxx_target_objs.
	* t-sh: Add rule for sh-c.o.

2006-01-30  Richard Guenther  <rguenther@suse.de>

	PR c++/23372
	* gimplify.c (gimplify_target_expr): Handle easy cases
	without creating a temporary.

2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>

	* vec.h (safe_grow): Remove duplicated line.

2006-01-29  Diego Novillo  <dnovillo@redhat.com>

	PR 25874
	* omp-low.c (execute_expand_omp): Move CFG cleanup code ...
	(expand_omp): ... here.
	(expand_omp_parallel): Only remove barriers for combined
	parallel+workshare constructs.

2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>

	Revert

	2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
	* tree.c (build_qualified_type): Chain the new type to the original
	type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
	a POINTER_TYPE or a REFERENCE_TYPE respectively.
	(build_pointer_type_for_mode): Only return unqualified types.
	(build_reference_type_for_mode): Likewise.

2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>

	* configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
	* Makefile.in (CXX_COMPAT_WARN): Define.
	* configure: Regenerate.

2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>

	PR tree-opt/25911
	* tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
	to an if check.

2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>

	* toplev.c: Fix thinko.

2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
	    Marcin Dalecki  <martin@dalecki.de>

	* toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
	(push_srcloc): Use XNEW.
	(init_asm_output, default_get_pch_validity): Use XNEWVEC.

2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>

	* df-core.c (df_set_blocks): Deleted all variable.

2006-01-28  Ian Lance Taylor  <ian@airs.com>

	* cgraphunit.c (cgraph_assemble_pending_functions): Call
	cgraph_output_pending_asms.

2006-01-28  Zack Weinberg  <zackw@panix.com>

	* c.opt: Add -W(no-)overlength-strings.
	* doc/invoke.texi: Document it.
	* c-opts.c (c_common_handle_option): -pedantic implies
	-Woverlength-strings, if not explicitly disabled already.
	(c_common_post_options): -Woverlength-strings defaults to off, and
	is always off for C++.
	* c-common.c (fix_string_type): Issue warning about strings longer
	than is portable only if warn_overlength_strings.  Rearrange code
	a little for clarity.
	* configure.in: Check for -Wno-overlength-strings as well before
	enabling -pedantic in stage 1.
	* Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
	(gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.

	* genconditions.c (write_header, write_one_condition)
	(write_conditions, write_writer): Consolidate very long strings
	that were broken up to fit in C89 portable limit.  Don't use
	printf when fputs will do.

2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>

	* combine.c (simplify_comparison <AND>): Check
	TRULY_NOOP_TRUNCATION before start using a subreg.

	* config/mips/mips.md (*branch_zero<mode>,
	*branch_zero<mode>_inverted, *branch_equality<mode>,
	*branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
	Remove mode check from comparisons.

2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>

	* config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.

2006-01-28  Kazu Hirata  <kazu@codesourcery.com>

	* expmed.c (const_mult_add_overflow_p): Remove.
	* expr.h: Remove the prototype for const_mult_add_overflow_p.

	* recog.c (validate_replace_rtx_subexp): Remove.
	* recog.h: Remove the prototype for
	validate_replace_rtx_subexp.

	* integrate.h: Remove the prototype for
	copy_decl_for_inlining.
	* rtl.h: Remove the prototype for mark_constant_function.
	* tree-vectorizer.h: Remove the prototype for
	vect_strip_conversion.

	* modulo-sched.c (create_partial_schedule,
	free_partial_schedule, reset_partial_schedule): Make them
	static.

	* hooks.c (hook_bool_rtx_int_false): Remove.
	* hooks.h: Remove the prototype for hook_bool_rtx_int_false.

2006-01-28  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
	and -mlong-double-128 are incompatible.
	* config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
	* config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
	(TARGET_LIBGCC2_CFLAGS): Define.
	* config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
	(TARGET_LIBGCC2_CFLAGS): Same.
	* config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.

2006-01-28  Kazu Hirata  <kazu@codesourcery.com>

	PR c/19606.
	* c-typeck.c (build_binary_op): Perform implicit casts of
	operands before shortening them.

	* cfgloopmanip.c (split_loop_bb): Remove.
	* cfgloop.h: Remove the prototype for split_loop_bb.

	* cfgloop.c (flow_loop_outside_edge_p): Remove.
	* cfgloop.h: Remove the prototype for
	flow_loop_outside_edge_p.

	* emit-rtl.c (init_virtual_regs): Make it static.
	* function.h: Remove the prototype for init_virtual_regs.

	* recog.c (peephole2_optimize): Make it static.
	* recog.h: Remove the prototype for peephole2_optimize.

2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>

	* df-scan.c (df_record_entry_block_defs): Check if
	INCOMING_RETURN_ADDR_RTX is defined.

2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
	    Kenneth Zadeck <zadeck@naturalbridge.com>

	PR rtl-optimization/24762
	* doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
	* targhooks.c (hook_void_bitmap): New hook prototype.
	* targhoohs.h (hook_void_bitmap): Ditto.
	* bitmap.h (bitmap_head_def): Moved to coretypes.h.
	* coretypes.h (bitmap_head_def): Moved from bitmap.h.
	* target.h (live_on_entry): New function pointer.
	* df-scan.c (df_all_hard_regs): Removed.
	(df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
	(df_scan_free_internal): Added df->entry_block_defs.
	(df_scan_alloc): Ditto.
	(df_scan_dump): Ditto.
	(df_uses_record): Plumbed flag field properly thru calls.
	Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
	This part fixes PR24762.
	(df_bb_refs_record): Added code to make the frame and arg
	pointers live in EH blocks.
	(df_refs_record): Added call to df_record_entry_block_defs.
	(df_record_entry_block_defs): New function.
	* df-core.c: Added comments to describe new artifical defs.
	* df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
	(entry_block_defs): New field in struct df.
	(df_all_hard_regs): Deleted.
	* target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
	* df-problems.c (df_ru_bb_local_compute_process_def):
	Added code to handle artifical defs in the entry to a function.
	(df_ru_bb_local_compute): Ditto.
	(df_rd_bb_local_compute_process_def):  Ditto.
	(df_rd_bb_local_compute): Ditto.
	(df_lr_bb_local_compute): Ditto.
	(df_ur_bb_local_compute): Ditto.
	(df_urec_bb_local_compute):  Ditto.
	(df_chain_create_bb):  Ditto.
	(df_ur_local_finalize):	Removed entry.
	(df_urec_init): Ditto.
	(df_urec_local_finalize): Ditto.
	(df_ri_bb_compute): Added detection of last use of pseudos.
	* Makefile.in (df-scan.o): Updated dependencies.
	* config/mips/mips-protos.h (mips_set_live_on_entry): Added.
	* config/mips/mips.c (mips_set_live_on_entry): Added.
	* config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
	for target hook.
	* dce.c (marked_insn_p): Added code to handle artifical defs.

2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
	intrinsic.
	(_mm_cvtsi128_si64): Likewise.
	(_mm_cvtsd_si64): Likewise.
	(_mm_cvttsd_si64): Likewise.
	(_mm_cvtsi64_sd): Likewise.
	(_mm_cvtsi64_si128): Likewise.
	* config/i386/mmintrin.h (_m_from_int64): Likewise.
	(_mm_cvtsi64_m64): Likewise.
	(_m_to_int64): Likewise.
	(_mm_cvtm64_si64): Likewise.
	* config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
	(_mm_cvttss_si64): Likewise.
	(_mm_cvtsi64_ss): Likewise.
	(_mm_cvtss_f32): Likewise.

2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>

	* c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
	for pragma redefine_extname.

2006-01-27  Jakub Jelinek  <jakub@redhat.com>

	PR target/25864
	* libgcc-std.ver: Add GCC_4.1.0 symbol version.
	* config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
	-mno-minimal-toc to previous content.
	(bispecs): Remove goal.
	* config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
	* config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
	compatibility aliases on powerpc-*-*gnu*.
	* config/rs6000/libgcc-ppc-glibc.ver: New file.
	* config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
	libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
	(TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
	(ldblspecs): New goal.
	* config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
	* mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
	_df_to_tf.
	* config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
	L_sf_to_tf or L_df_to_tf is defined.

2006-01-27  David Edelsohn  <edelsohn@gnu.org>
	    Alan Modra  <amodra@bigpond.net.au>

	PR target/25864
	* config/rs6000/linux.h (POWERPC_LINUX): Define.
	* config/rs6000/linux64.h (POWERPC_LINUX): Define.
	* config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
	* config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
	* config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
	* config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
	(rs6000_override_options): Initialize rs6000_ieeequad.
	Initialize TFmode format to ibm_extended_format if not
	TARGET_IEEEQUAD.
	(rs6000_handle_option): Accept -mabi= ibmlongdouble and
	ieeelongdouble.
	(rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
	(rs6000_return_in_memory): Only return IEEEQUAD in memory.
	(function_arg_advance): IBM long double passed in two FPRs, not
	split.
	(function_arg): IBM long double passed in FPRs.
	(rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
	(rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
	Only multireg GPR aligned.
	(rs6000_init_libfuncs): Enable IBM long double functions if not
	IEEEQUAD.
	(rs6000_generate_compare): Use IBM long double compare if not
	TARGET_IEEEQUAD.
	* config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
	(TARGET_IEEEQUAD): Define.
	(CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
	not TARGET_IEEEQUAD.
	* config/rs6000/rs6000.md: Enable TFmode patterns if
	!TARGET_IEEEQUAD.
	* config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
	* config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
	and -mlong-double-128 are incompatible.
	* doc/invoke.texi (-mabi): Collect options together.  Add
	ibmlongdouble and ieeelongdouble.

2006-01-27  Richard Sandiford  <richard@codesourcery.com>

	* doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
	opaque type.
	* optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
	* varasm.c (make_decl_rtl, build_constant_desc): Likewise.
	(force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
	* rtl.h (rtunion_def): Remove rt_ptr.
	(X0PTR): Delete.
	(SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
	(SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
	* config/i386/winnt.c (i386_pe_mark_dllexport)
	(i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.

2006-01-27 Gabor Loki <loki@gcc.gnu.org>

	* cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.

2006-01-26 Alexandre Oliva  <aoliva@redhat.com>

	PR other/24829
	PR target/24831
	* gthr-dce.h: Do not gthrw-ify pthread_once_init,
	pthread_key_delete.  From John David Anglin.  gthrw-ify
	pthread_getunique_np only if it it's not a macro.  Delete
	UNUSED macro.
	(__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
	__gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
	__gthread_objc_condition_signal, __gthread_key_delete): Add
	"__attribute__ ((__unused__))" to unused arguments.
	(__gthread_recursive_mutex_init_function): Add missing return.
	* gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
	gthr-posix95.h: Use macro-based approach for name redirection
	on targets missing weakref.

2006-01-26  Zack Weinberg  <zackw@panix.com>

	* genconditions.c (write_header): In generated code, #ifdef out
	all includes and fake declarations, except includes of bconfig.h
	and system.h, unless GCC_VERSION >= 3001.  Do not include
	gensupport.h in any case.
	(write_conditions): Generate a definition of struct c_test.  Add
	a comment to the generated #endif.
	(write_one_condition): Escape backslashes in string too.
	(write_writer): Generated code must escape backslashes and quote
	marks (but not newlines) in the strings it writes.
	* Makefile.in (build/gencondmd.o): Update dependencies.

2006-01-26  Steve Ellcey  <sje@cup.hp.com>

	PR target/25961
	* Makefile.in (insn-automata.o): Add header file dependencies.
	* genautomata.c: Add includes.

2006-01-26  Steve Ellcey  <sje@cup.hp.com>

	PR target/25961
	* Makefile.in (insn-automata.o): Add -Wno-error flag.

2006-01-26  Paolo Bonzini  <bonzini@gnu.org>

	* configure.ac: Expect target tools paths to be passed from the toplevel
	and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
	AS_SET_VAR_IF.
	* acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.

2006-01-26  Alexandre Oliva  <aoliva@redhat.com>

	PR c/25892
	* c.opt (Wpointer-sign): Init to -1.
	* c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
	OPT_pedantic, to 0 otherwise.
	* doc/invoke.texi: Update.

2006-01-26  Paolo Bonzini  <bonzini@gnu.org>

	* config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
	constants provided by 80387 instructions in the destination mode.

2006-01-26  Richard Guenther  <rguenther@suse.de>
	    Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/21470
	partial PR tree-opt/17064
	* tree-ssa-structalias.c (intra_create_variable_infos):
	Create heap variables for incoming parameters if
	flag_argument_noalias > 1.
	(find_what_p_points_to): Look through default defs of
	parameter decls.

2006-01-26  Jeff Law  <law@redhat.com>

	PR ada/25900
	* tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
	with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
	within the VR_RANGE, use the VR_RANGE as the result, not the
	VR_ANTI_RANGE.
	(adjust_range_with_scev): Reject ranges from SCEV which are out of
	bounds for the type.

2006-01-26  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-alias.c (maybe_create_global_var): Change
	subvar walking to an assertion that we don't have subvar'd variables.

2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>

	PR C/25861
	* c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
	Use a new variable, inner.  PARM_DECLs are always non-weak.

2006-01-26  Shantonu Sen  <ssen@opendarwin.org>

	* tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
	--disable-checking.

2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>

	* config/mips/mips.md (*clear_upper32): New combiner pattern.

2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>

	* arm.md (smaxsi3, sminsi3): Convert to define_expand.
	(smax_insn, smin_insn, smax_0, smin_0): New.

2006-01-26  Hans-Peter Nilsson  <hp@axis.com>

	PR target/25947
	* config/cris/cris.c (cris_order_for_addsi3): New function.
	* config/cris/cris-protos.h: Prototype it.
	* config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
	(split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
	(split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
	(split for "op.S1 [rx=rx+i],ry (swapped)")
	(split for "op(s|u).S1 [rx=rx+i],ry")
	(split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
	Apply cris_order_for_addsi3 when generating addsi3 insns.

2006-01-25  Diego Novillo  <dnovillo@redhat.com>

	* tree.h (TREE_RANGE_CHECK): Fix range predicate.
	(TREE_BLOCK): Add call to EXPR_CHECK.

2006-01-25  Diego Novillo  <dnovillo@redhat.com>

	PR 25886
	* tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
	* tree-pretty-print.c (dump_omp_clause): Extract from ...
	(dump_omp_clauses): ... here.
	(dump_generic_node): Handle OMP_CLAUSE.
	* tree.c (omp_clause_num_ops): New.
	(omp_clause_code_name): New.
	(tree_code_size): Handle OMP_CLAUSE.
	(tree_size): Likewise.
	(make_node): Document handling of OMP_CLAUSE.
	(tree_node_structure): Handle OMP_CLAUSE.
	(omp_clause_check_failed): New.
	(omp_clause_range_check_failed): New.
	(omp_clause_operand_check_failed): New.
	(build_omp_clause): New.
	(walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
	* tree.h (enum omp_clause_code): Declare.
	(OMP_CLAUSE_SUBCODE_CHECK): Define.
	(OMP_CLAUSE_RANGE_CHECK): Define.
	(OMP_CLAUSE_ELT_CHECK): Define.
	(omp_clause_check_failed): Declare.
	(omp_clause_operand_check_failed): Declare.
	(omp_clause_range_check_failed): Declare.
	(OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
	(OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
	(OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
	(OMP_CLAUSE_LASTPRIVATE): Likewise.
	(OMP_CLAUSE_IF_EXPR): Likewise.
	(OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
	(OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
	(OMP_CLAUSE_REDUCTION_CODE): Likewise.
	(OMP_CLAUSE_REDUCTION_INIT): Likewise.
	(OMP_CLAUSE_REDUCTION_MERGE): Likewise.
	(OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
	Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
	(OMP_CLAUSE_SCHEDULE_KIND): Likewise.
	(OMP_CLAUSE_DEFAULT_KIND): Likewise.
	(OMP_CLAUSE_CODE): Define.
	(OMP_CLAUSE_SET_CODE): Define.
	(OMP_CLAUSE_CODE): Define.
	(OMP_CLAUSE_OPERAND): Define.
	(struct tree_omp_clause): Declare.
	(union tree_node): Add field 'omp_clause'.
	* treestruct.def (TS_OMP_CLAUSE): Define.
	* tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
	OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
	OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
	OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
	OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
	OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
	(OMP_CLAUSE): Define.
	* print-tree.c (print_node): Handle OMP_CLAUSE.
	* omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
	* c-typeck.c: Likewise.
	* gimplify.c: Likewise.
	* c-omp.c: Likewise.
	* tree-nested.c: Likewise.
	* tree-inline.c: Likewise.
	* c-parser.c: Likewise.
	* gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
	clauses.

2006-01-25  Roger Sayle  <roger@eyesopen.com>

	PR rtl-optimization/25703
	* combine.c (try_combine): Handle zero_extract and strict_low_part
	of non-lowpart SUBREGs for constant reg_subword_p set optimization.

2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>

	* global.c: Fix comment typos.

2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>

	PR target/25758
	* config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
	Use output_addr_const instead of assemble_name.

2006-01-25  Paolo Bonzini  <bonzini@gnu.org>

	* Makefile.in (sched-vis.o): Update dependencies.
	* haifa-sched.c (sched_finish): Clear current_sched_info.
	* cfg.c (dump_bb_info): New, split from dump_flow_info.
	(dump_flow_info): Call it.
	* passes.c (execute_todo): Call print_rtl_slim_with_bb to make
	a slim RTL dump.
	* basic-block.h (dump_bb_info): Declare.
	* tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
	option, and apply options only for dump files whose TDF_RTL,
	TDF_TREE, or TDF_IPA bits match.
	* rtl.h: Declare new functions exported from sched-vis.c.
	* sched-vis.c: Enable also if scheduling is not used.
	(print_value): Print the mode of registers if not inside scheduling.
	(print_insn): Make it work outside the scheduler.  Beautify the output
	a bit.
	(dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.

2006-01-25  Richard Sandiford  <richard@codesourcery.com>

	* doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
	* gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
	a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
	depending on the value of CONSTANT_POOL_ADDRESS_P.
	* optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
	SYMBOL_REF_DECL.
	* varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
	rather than SYMBOL_REF_DECL.
	(rtx_constant_pool): Remove const_rtx_sym_htab.
	(const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
	(init_varasm_status): Don't initialize const_rtx_sym_htab.
	(force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
	Remove handling of const_rtx_sym_htab.
	(find_pool_constant): Delete.
	(get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
	rather than find_pool_constant.
	(get_pool_constant_for_function): Delete.
	(get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
	find_pool_constant.
	* rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
	(X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
	(SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
	(SYMBOL_REF_CONSTANT): New macro.
	(get_pool_constant_for_function): Delete.
	* config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
	rather than SYMBOL_REF_DECL.
	(i386_pe_mark_dllimport): Likewise.
	* config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
	rather than SYMBOL_REF_DECL.
	* config/darwin.c (machopic_indirect_data_reference): Likewise.
	(machopic_indirect_call_target): Likewise.

2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>

	* flow.c (delete_noop_moves): Add missing EOL to dump message.

2006-01-25  Richard Sandiford  <richard@codesourcery.com>

	* genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.

2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.

2006-01-24  David Daney  <ddaney@avtrex.com>

	PR java/25816
	* configure.ac (enable_tls): New enable option.
	(HAVE_AS_TLS): Don't do assembler check if enable_tls set.
	* configure: Regenerate.
	* doc/install.texi (--enable-tls): Document new option.
	(--disable-tls): Ditto.

2006-01-24  Richard Henderson  <rth@redehat.com>

	* alias.h (ALIAS_SET_MEMORY_BARRIER): New.
	* alias.c (true_dependence): Respect it.
	(canon_true_dependence, write_dependence_p): Likewise.
	* builtins.c (get_builtin_sync_mem): Set it.

2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>

	* loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
	efficient way.

2006-01-24  DJ Delorie  <dj@redhat.com>

	* expmed.c (store_bit_field): Don't arbitrarily deny using insv
	for storing constants in single-bit bitfields.

2006-01-25  Ben Elliston  <bje@au.ibm.com>

	* dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.

2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/25860
	* tree-ssa-pre.c (phi_translate): Return NULL
	for AGGREGATE_TYPE's.

2006-01-24  Zack Weinberg  <zackw@panix.com>

	* genautomata.c (process_state_for_insn_equiv_partition):
	Use xcalloc for insn_arcs_array.
	* vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
	(DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.

2006-01-24  Richard Henderson  <rth@redhat.com>

	* genextract.c (VEC_safe_set_locstr): Take VEC by reference;
	update all callers.

2006-01-23  Paolo Bonzini  <bonzini@gnu.org>

	PR rtl-optimization/25890
	PR rtl-optimization/25905
	* combine.c (expand_compound_operation, expand_field_assignment):
	Fail if the bitfield's final position is out of bounds.

2006-01-24  Ian Lance Taylor  <ian@airs.com>

	PR middle-end/25930
	* cgraphunit.c (cgraph_output_in_order): Don't clear
	cgraph_asm_nodes until after asm strings have been output.

2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>

	* fix-header.c (read_scan_file): Add new parameter imultilib when
	calling register_include_chains.

2006-01-23  Diego Novillo  <dnovillo@redhat.com>

	* omp-low.c: Update documentation.

2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
	    Daniel Berlin  <dberlin@dberlin.org>

	PR tree-opt/25315
	PR tree-opt/25857
	* tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
	return from the function.

2006-01-22  Zack Weinberg  <zackw@panix.com>

	* rtl.def (match_code): Add second argument.
	* genpreds.c (write_extract_subexp): New function.
	(write_match_code): Add path argument.  Use write_extract_subexp.
	(write_predicate_expr): Pass path to write_match_code.
	(mark_mode_tests): MATCH_CODE applied to a subexpression does
	not perform a mode test.
	* genrecog.c (compute_predicate_codes): MATCH_CODE applied to
	a subexpression does not constrain the top-level code set.
	* read-rtl.c (read_rtx_variadic): New function.
	(read_rtx_1): Use it; allow AND and IOR to be variadic.
	* doc/md.texi: Document new notation.
	* config/i386/predicates.md (cmpsi_operand_1): Fold into ...
	(cmpsi_operand): ... here, using new notation.

2006-01-22  Zack Weinberg  <zackw@panix.com>

	* varray.c: Remove GENERATOR_FILE #ifdefs.

2006-01-22  Zack Weinberg  <zackw@panix.com>

	* genautomata.c (output_reserved_units_table): Emit nothing if
	description->query_units_num is zero.  Remove extra blank line.
	(output_cpu_unit_reservation_p): Short circuit
	if description->query_units_num is zero.

2006-01-22  Zack Weinberg  <zackw@panix.com>

	* genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
	and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
	nor any of the random handful of variables that used to be necessary
	when this program was linked with rtlanal.o.  Prune set of forward
	function declarations.
	(struct attr_desc): Remove static_p field.
	(hash_obstack, temp_obstack, attr_hash_table, attr_printf)
	(check_attr_test, make_internal_attr, make_numeric_value): Make static.
	(attr_string): Do not read the character one past the length of
	the string.
	(write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
	(struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
	(n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
	(n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
	(make_automaton_attrs): New.
	(main): Do not call into genautomata.  Call local gen_bypass
	and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
	Remove special case for insn_alts.
	* genautomata.c: Include gensupport.h; not genattrtab.h nor
	varray.h (leftover from previous change).  Prune set of forward
	function declarations.  Remove state_alts fields from all
	structures.  Remove state_alts_table from struct automaton.
	Make everything except main static.  Do not maintain num_dfa_decls.
	Do not maintain state_alts fields of various structures.
	(process_decls): Don't validate condexp for dm_insn_reserv decls.
	(add_arc): Remove state_alts argument.  All callers updated.
	(output_reserved_units_table): Emit #ifdef here...
	(output_tables): ...not here.  Don't generate state_alts tables.
	(expand_automata): Don't generate attributes.
	(write_automata): Don't generate state_alts functions.
	(main): New function.
	(it_is_empty_reserv_sets, output_state_alts_full_vect_name)
	(output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
	(AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
	(STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
	(BYPASS_P_FUNC_NAME, output_state_alts_table)
	(output_automata_list_state_alts_code, output_internal_state_alts_func)
	(output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
	(make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
	Delete.
	* genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
	* genattrtab.h: Delete file.
	* Makefile.in (OBJS-common): Add insn-automata.o.
	(insn-automata.o): New rule.
	(simple_generated_c): Add insn-automata.c.
	(build/genattrtab.o, build/genautomata.o): Update dependencies.
	(genprogmd): Add automata.
	(build/genattrtab): Needs no extra objects nor libraries.
	(build/genautomata): Needs build/vec.o and -lm.

2006-01-22  Zack Weinberg  <zackw@panix.com>

	* genautomata.c (process_state_longest_path, max_dfa_issue_rate)
	(output_dfa_max_issue_rate, locked_states_num): Delete.
	(struct automaton): Add locked_states field.
	(output_dead_lock_vect): Save number of locked states in
	automaton->locked_states.  If it is zero, don't print anything.
	(output_max_insn_queue_index_def): Define max_insn_queue_index const.
	(output_internal_dead_lock_func): Only test the dead_lock_vect
	for automata that have locked states.
	(output_statistics): Always print the number of locked states for
	each automaton.  Calculate total number of locked states here.
	(write_automata): Don't call output_dfa_max_issue_rate.
	* genattrtab.c: Define length_unit_log as a const variable.
	* genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
	max_insn_queue_index const.
	* final.c (length_unit_log): Declare const.
	* doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.

2006-01-22  Zack Weinberg  <zackw@panix.com>

	* genautomata.c:  Include vec.h, not varray.h.
	Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
	VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
	VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
	VEC_* macros operating on appropriately typed vectors, or to
	malloced arrays when the size is known in advance.  Const-ify
	many char* variables and function arguments.  No functional changes.
	* Makefile.in (build/varray.o): Delete rule.
	(build/genattrtab): Depend on build/vec.o instead of build/varray.o.
	(build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).

2006-01-22  Zack Weinberg  <zackw@panix.com>

	* gensupport.c: Define get_insn_name and record_insn_name here.
	(read_md_rtx): Call record_insn_name as appropriate.
	* genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
	* genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
	* genpreds.c, genrecog.c: Don't define get_insn_name nor
	record_insn_name.
	* Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
	(BUILD_VARRAY): Delete.
	(genprognormal): Rename genprogmd.  Fold in all programs from
	genprognoprint; also attrtab.
	(build/genattrtab): Just mention genautomata.o and varray.o.
	Reorganize a bit, add comments to make the categories clearer.

2006-01-22  Zack Weinberg  <zackw@panix.com>

	* genconditions.c (condition_table, add_condition): Delete.
	(write_conditions): Don't emit n_insn_conditions nor
	insn_elision_unavailable.  Issue the gcc version #ifdef here,
	inside the table, with no #else clause ...
	(write_header): ...not here.
	(write_writer): New function.
	(main): Don't initialize condition_table.  Use add_c_test.
	Call write_writer.
	* gensupport.c (init_md_reader_args_cb): Handle multiple input
	files on the command line.
	(maybe_eval_c_test): Don't check insn_elision_unavailable.
	Return -1 if there is no entry in the table, don't abort.
	(add_c_test, traverse_c_tests): New functions.
	* gensupport.h (insn_elision_unavailable, insn_conditions)
	(n_insn_conditions): Delete declarations.
	(add_c_test, traverse_c_tests): Declare.
	* read-rtl.c: Include gensupport.h.
	(read_conditions): New function.
	(read_rtx): If read_rtx_1 returns 0, treat as EOF.
	(read_rtx_1): If we get EOF when we were looking for an initial
	open paren, return 0.  Call read_conditions when appropriate.
	* Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
	dummy-conditions.o.  Eliminate references to insn-conditions.o,
	or change them to build/gencondmd.o, as appropriate.  Remove
	insn-constants.h from $(simple_generated_h) and insn-conditions.c
	from $(simple_generated_c).  For all files remaining in those
	two lists, add insn-conditions.md to the generator command line.
	Give insn-constants.h/s-constants their own rules.  Add rules
	for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
	(build/read-rtl.o): Depend on gensupport.h.
	(genprognormal): Include preds.
	(genprogearly): Rename genprognoprint; only difference is now that
	they don't link with $(BUILD_PRINT).
	* dummy-conditions.c: Delete.

2006-01-22  Zack Weinberg  <zackw@panix.com>

	* genextract.c: Don't include insn-config.h.  Do include vec.h.
	Declare vectors of int, char, and locstr.
	(locstr): New typedef.
	(struct extraction): Make all array fields into bare pointers.
	(insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
	(insn_code_number): Delete.
	(accum_extract): New struct.
	(VEC_safe_set_locstr, VEC_char_to_string): New functions.
	(gen_insn): Take insn_code_number as an argument.  Use an
	accum_extract structure instead of loading data directly into
	a struct extraction, and having to know how big it might get.
	(walk_rtx): Operate entirely on an accum_extract structure.
	(print_path): Avoid unnecessary use of printf.
	(print_header): New function, split out of main.  Distinguish
	more carefully between an unrecognizable insn and an insn that
	has the code number of a define_expand.
	(main): Pass insn_code_number to gen_insn.  Call print_header
	only after parsing.  Avoid unnecessary use of printf.
	* Makefile.in (build/vec.o): New rule.
	(build/genextract): Depend on build/vec.o.
	(build/genextract.o): Don't depend on insn-config.h.

2006-01-22  Zack Weinberg  <zackw@panix.com>

	* Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
	$(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
	practical.  Eliminate per-generator-program link rules.

2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>

	PR middle-end/24437
	* tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
	with a call expr to ...
	* fold-const.c (fold_ternary) <case CALL_EXPR>: Here.

2006-01-23  Richard Guenther  <rguenther@suse.de>

	* cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
	before make_edge with conditional EDGE_TRUE_VALUE.

2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
	Jan Hubicka  <jh@suse.cz>
	Richard Guenther  <rguenther@suse.de>

	PR rtl-optimization/25654
	* cfgexpand.c (aggregate_contains_union_type): New function.
	(add_alias_set_conflicts): Call it.  Make sure to add conflicts
	for structure variables that contain a union type.

2006-01-23  Richard Sandiford  <richard@codesourcery.com>

	* gengtype.c (new_structure): Return the structure.
	(create_option): Add an extra "next" argument.
	(create_field): New function.
	(adjust_field_rtx_def): Use create_option and create_field.
	Remove a now-unnecessary call to find_structure.
	(adjust_field_tree_def): Likewise.
	(note_yacc_type): Remove an unnecessary call to find_structure.
	* gengtype.h (new_structure): Return the structure.
	(create_option): Add an extra argument.
	* gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
	(option): Adjust calls to create_option.

2006-01-22  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/aix.h (STACK_BOUNDARY): Define.

2006-01-22  Paul Brook  <paul@codesourcery.com>
	Peter Barada  <peter@the-baradas.com>

	* config/m68k/m68k.md: Add Coldfire FPU support.
	Define FP mode macro and associated attributes.
	Use it for float mode patterns.
	* config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
	(LIBCALL_VALUE): Use m68k_libcall_value.
	* config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
	(m68k_function_value): Ditto.
	(emit_move_sequence): Ditto.
	* config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
	* config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
	* config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
	(MULTILIB_EXCEPTIONS): Ditto.
	* config/m68k/m68k.opt: Add mcfv4e.
	* config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
	(m68k_compute_frame_layout): Include space for ColdFire FPU regs.
	(m68k_output_function_prologue): Save ColdFire FPU registers.
	(m68k_output_function_epilogue): Restore ColdFire FPU registers.
	(force_mode, fp_reg_operand, emit_move_sequence): New functions.
	(m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
	ColdFire FPU registers.
	(m68k_libcall_value, m68k_function_value): New functions.
	* config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
	(LIBCALL_VALUE): Use m68k_libcall_value.
	* config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
	(MASK_COLDFIRE): Add MASK_CFV4E.
	(TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
	(MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
	(REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
	(GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
	(GO_IF_LEGITIMATE_ADDRESS): Use it.
	(LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
	* doc/invoke.tex: Document -mcfv4e on m68k.

2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>

	* doc/contribute.texi: Change CVS to SVN and update the corresponding
	URL.

2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>

	PR c++/16190
	* c-opts.c (c_common_handle_option): Don't include
	-Wnon-virtual-dtor in -Wall; enable if -Weffc++.
	* doc/invoke.texi (C++ Dialect Options): Document that
	-Wnon-virtual-dtor is no longer included in -Wall.

2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>

	* gcov.c (print_version), gcov-dump.c (print_version),
	mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
	dates.

2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>

	* df-scan.c (problem_SCAN): Added NULL reset function.
	(df_scan_reset_blocks): Added code to call reset block function
	(df_bb_refs_delete) Fixed comment.
	(df_insn_refs_delete): Made tolerant of deleting non existent info
	for dataflow problems that need to be reset.
	* df-core.c (df_set_blocks): Ditto.
	* df.h (struct df_problem): Added reset_fun.
	* df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
	problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
	(df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
	functions to clear out all references to def-use or use-def chains.

2006-01-21  Ben Elliston  <bje@au.ibm.com>

	* varasm.c (assemble_real): Initialise data array.

2006-01-20  Paul Brook  <paul@codesourcery.com>

	Merge from csl-arm-branch.
	2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
	* config/arm/arm.md (movdi): Force operands[1] to a register
	if we have a non-register source.
	(*arm_movdi, *movdf_soft_insn): Require that one of the
	operands be a register.
	* config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
	* config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.

2006-01-20  DJ Delorie  <dj@redhat.com>

	* varasm.c (initialize_constant_valid_p): Allow pointers
	initialized from integer constants of lesser precision.
	(output_constant): Allow non-int-sized pointer modes to be
	initialized from integer constants.

2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>

	PR libstdc++/25524
	* cppdefault.h (struct default_include): Add multilib flag.
	* cppdefault.c (cpp_include_defaults): Set it.
	* c.opt (-imultilib): New option.
	* c-opts.c (imultilib): New.
	(c_common_handle_option): Handle -imultilib.
	(c_common_post_options): Likewise.
	* c-incpath.c (add_standard_paths, register_include_chains):
	Likewise.
	* c-incpath.h (register_include_chains): Add extra parameter.
	* gcc.c (do_spec_1): Generate -imultilib option.
	(The Specs Language): Update %I description.
	(process_command): Update copyright notice.
	* doc/cppopts.texi (-imultilib): Document.
	* doc/invoke.texi (-imultilib): Include in option summary.
	(%I): Update specs documentation.

2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>

	* loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.

2006-01-20  Richard Sandiford  <richard@codesourcery.com>

	* stmt.c (case_bit_test_cmp): Stabilize the sort using code
	label numbers.

2006-01-20  Richard Guenther  <rguenther@suse.de>
	Steven Bosscher <stevenb.gcc@gmail.com>

	PR rtl-optimization/24626
	* cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
	EDGE_TRUE_VALUE if in RTL mode.

	Revert
	2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
	* cfgrtl.c (rtl_verify_flow_info_1): Fix.

2006-01-20  Dirk Mueller  <dmueller@suse.com>

	PR c++/5520
	* c-parser.c (c_parser_if_body): Use build_empty_stmt()
	instead of a special NOP marker.
	* c-typeck.c (c_finish_if_stmt): Remove obsoleted special
	NOP marker handling.
	* c-common.h (empty_body_warning): Add forward declaration.
	* c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
	Now uses IS_EMPTY_STMT() instead of special NOP markers.

2006-01-20  Paul Brook  <paul@codesourcery.com>

	* Makefile.in (lang_checks): Keep going if mkdir fails.

2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>

	* df-scan.c (df_scan_free_bb_info): Added basic block parameter to
	be able to clean out basic block when not necessary.
	(df_scan_free): Fixed to properly delete information if df is
	unused before calling df_finish.
	(df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
	df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
	or comment typos.
	(df_bb_refs_delete): New function.
	(df_refs_delete): Moved per block code to df_bb_refs_delete.
	* df-core.c (df_set_blocks): Added code to properly clean out
	unused blocks if they are not part of the blocks to consider.
	Added additional null check.
	(df_compact_blocks): Added basic block parameter to free_bb_fun to
	be able to clean out basic block when not necessary
	* df.h (df_free_bb_function): Ditto.
	(df_bb_refs_delete): New function.
	* df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
	df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
	basic block parameter to be able to clean out basic block when not
	necessary.
	(df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
	(df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
	Fixed to properly delete information if df is unused before
	calling df_finish.

2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>

	PR rtl-optimization/25799
	* df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
	Corrected confluence operator to remove bits from op2 before oring
	with op1 rather than removing bits from op1.
	(df_ru_transfer_function): Corrected test on wrong bitmap which
	caused infinite loop.  Both of these problems were introduced in
	the dataflow rewrite.

2006-01-19  DJ Delorie  <dj@redhat.com>

	* reload1.c (find_reload_regs): Note the details of reload
	failures in the dump file.
	(spill_failure): Likewise.

2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>

	* loop-iv.c: Include df.h and hashtab.h.
	(enum iv_grd_result): New enum.
	(DF_REF_IV, DF_REF_IV_SET): New macros.
	(struct biv_entry): New.
	(df, bivs): New global variables.
	(struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
	assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
	Removed.
	(clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
	iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
	analyzed_for_bivness_p, record_biv): New functions.
	(iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
	get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
	iv_analyze, biv_p, iv_analysis_done): Work with df representation of
	UD chains.
	(iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
	analysed.
	(iv_number_of_iterations): Use new interface to iv analysis.
	* loop-unroll.c: Do not include varray.h.
	(analyze_iv_to_split_insn): Use new interface to iv
	analysis.
	* loop-unswitch.c (may_unswitch_on): Ditto.
	* df.c (df_bitmaps_free): Only work for bbs for that structures are
	allocated.
	(df_bb_modify): Realloc tables to the new index.
	(df_find_use): New function.
	* df.h (df_find_use): Declare.
	* optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
	outmode.
	* cfgloop.h (struct rtx_iv): Remove analysed field.
	(iv_get_reaching_def): Removed.
	(iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
	* Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
	(loop-iv.o): Add df.h and hashtab.h dependency.
	* df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.

2006-01-20  Alan Modra  <amodra@bigpond.net.au>

	PR target/25668
	* libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
	Double TFmode.
	(__floatundisf, __floatundidf): Likewise.
	* libgcc2.h (IS_IBM_EXTENDED): Define.

2006-01-19  DJ Delorie  <dj@redhat.com>

	* config/m32c/m32c.h (REG_ALLOC_ORDER): Define.

2006-01-19  Paul Brook  <paul@codesourcery.com>

	* gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
	as nothrow when unwinding tables are disabled.

2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR testsuite/25171
	* c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
	of bit-field" when in system header.

2006-01-19  DJ Delorie  <dj@redhat.com>

	* config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
	the 16 bit shift limit of the m16c.

2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>

	PR target/22099
	* config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
	* config/i386/i386.c (output_set_got): Output the label if we have one
	for the TARGET_DEEP_BRANCH_PREDICTION case.

2006-01-19  Jan Hubicka  <jh@suse.cz>
	    H.J. Lu  <hongjiu.lu@intel.com>
	    Evandro Menezes <evandro.menezes@amd.com>

	* invoke.texi (generic): Document
	(i686) Update.
	* config.gcc: Make x86_64-* and i686-* default to generic tunning.
	* i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
	TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
	(x86_use_incdec, x86_pad_returns): New variables
	(TARGET_CPU_DEFAULT_generic): New constant
	(TARGET_CPU_DEFAULT_NAMES): Add generic.
	(enum processor_type): Add generic32 and generic64.
	* i386.md (cpu attribute): Add generic32/generic64
	(movhi splitter): Behave sanely when both partial_reg_dependency and
	partial_reg_stall are set.
	(K8 splitters): Enable for generic as well.
	* predicates.md (incdec_operand): Use TARGET_INCDEC
	(aligned_operand): Avoid memory mismatch stalls.
	* athlon.md: Enable for generic64, new patterns for 128bit moves.
	* ppro.md: Enable for generic32
	* i386.c (generic64_cost, generic32_cost): New.
	(m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
	(x86_use_leave): Enable for generic64.  (x86_use_sahf,
	x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
	x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
	x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
	x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
	x86_partial_reg_dependency, x86_memory_mismatch_stall,
	x86_accumulate_outgoing_args, x86_prologue_using_move,
	x86_epilogue_using_move, x86_arch_always_fancy_math_387,
	x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
	Enable for generic.
	(x86_use_incdec, x86_pad_returns): New.
	(override_options): Add generic32 and generic64, translate "generic"
	to generic32/generic64 and "i686" to "generic32", refuse
	"generic32"/"generic64" as arch target.
	(ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
	(ix86_reorg): Honor PAD_RETURNS.

2006-01-19  Diego Novillo  <dnovillo@redhat.com>

	* tree-pretty-print.c (dump_generic_node): Handle
	OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
	* cgraph.c (cgraph_expand_queue): Rename from
	cgraph_analyze_queue.  Update all users.
	* cgraphunit.c (cgraph_assemble_pending_functions): Process
	cgraph_expand_queue.
	(cgraph_expand_all_functions): Likewise.
	(cgraph_finalize_pending_functions): Remove.  Update callers.

	* tree.h (OMP_DIRECTIVE_P): Define.
	(OMP_PARALLEL_FN): Define.
	(OMP_PARALLEL_DATA_ARG): Define.
	(OMP_SECTIONS_SECTIONS): Define.
	* tree-pass.h (pass_expand_omp): Declare.
	* omp-low.c (struct omp_region): Declare.
	(struct omp_context): Remove fields 'parallel_type',
	'parallel_start_ix' and 'parallel_start_additional_args'.
	Update all users.
	(struct omp_for_data): Rename from struct expand_omp_for_data.
	(omp_regions): New static variable.
	(root_omp_region): New static variable.
	(find_omp_clause): Make static.
	(is_in_combined_parallel_ctx): Remove.
	(is_combined_parallel): New.
	(extract_omp_for_data): Move earlier in the file.
	(workshare_safe_to_combine_p): New.
	(get_ws_args_for): New.
	(determine_parallel_type): Move earlier in the file.
	(omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
	child function.
	(omp_copy_decl): Likewise.
	(create_omp_child_function): Likewise.
	(lookup_omp_region): New.
	(dump_omp_region): New.
	(debug_omp_region): New.
	(debug_all_omp_regions): New.
	(new_omp_region): New.
	(scan_omp_parallel): If parallel_nesting_level > 1, the
	directive is nested within another parallel directive.
	Set OMP_PARALLEL_FN.
	(scan_omp_for): Do not try to handle combined parallel+for
	cases.
	Remove FIXME comment.
	(scan_omp_nested): Remove.
	(scan_omp_1): Do not call scan_omp_nested when
	parallel_nesting_level is > 1.
	Do not change the DECL_CONTEXT of local variables found.
	(lookup_decl_in_outer_ctx): New.
	(lower_rec_input_clauses): Rename from expand_rec_input_clauses.
	(lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
	(lower_reduction_clauses): Rename from expand_reduction_clauses.
	(lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
	If CTX is nested, lookup VAR in the outer context when
	building copy assignment.
	(lower_send_clauses): Rename from expand_send_clauses.
	If CTX is nested, lookup VAR in the outer context when
	building copy assignments.
	(lower_send_shared_vars): Rename from expand_send_shared_vars.
	If CTX is nested, lookup VAR in the outer context when
	building copy assignments.
	(expand_parallel_call): Rename from build_parallel_call.
	Handle combined parallel+workshare cases.
	Re-implement to emit code into the CFG.
	(list2chain): New.
	(expand_omp_parallel): Re-implement to emit code into the CFG.
	Call move_sese_region_to_fn to outline the sub-graph
	containing the parallel region.
	(expand_omp_for_1): Remove.
	(expand_omp_for_generic): Re-implement to emit code into the
	CFG.
	(expand_omp_for_static_nochunk): Likewise.
	(expand_omp_for_static_chunk): Likewise.
	(expand_omp_for): Likewise.
	(expand_omp_sections): Likewise.
	(remove_exit_barriers): New.
	(expand_omp_synch): New.
	(expand_omp): New.
	(build_omp_regions_1): New.
	(build_omp_regions): New.
	(execute_expand_omp): New.
	(gate_expand_omp): New.
	(pass_expand_omp): Define.
	(lower_omp_sections): Rename from expand_omp_sections.
	Set OMP_SECTIONS_SECTIONS.
	(lower_omp_single_simple): Rename from expand_omp_single_simple.
	(lower_omp_single_copy): Rename from expand_omp_single_copy.
	(lower_omp_single): Rename from expand_omp_simple.
	(lower_omp_master): Rename from expand_omp_master.
	(lower_omp_ordered): Rename from expand_omp_ordered.
	(lower_omp_critical): Rename from expand_omp_critical.
	(lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
	(lower_omp_for): Re-implement.
	(lower_omp_parallel): Re-implement.
	(lower_regimplify): Rename from expand_regimplify.
	(lower_omp_1): Rename from expand_omp_1.
	If there are syntax errors in the program, replace every
	OpenMP directive with NOP.
	Call lower_omp_* instead of expand_omp_*.
	(lower_omp): Rename from expand_omp.

	* tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
	* tree-gimple.h (enum omp_parallel_type): Remove.
	(gimple_boolify): Declare extern.
	(find_omp_clause, determine_parallel_type): Remove.

	* gimple-low.c (lower_omp_directive): New.
	(lower_stmt): Call it.
	(record_vars_into): Move from ...
	(record_vars): ... here.
	Call record_vars_into with current_function_decl.

	* gimplify.c (struct gimplify_ctx): Remove fields
	combined_pre_p and combined_ctxp.  Update users.
	(get_formal_tmp_var): Add documentation.
	(gimple_boolify): Make extern.
	(gimplify_expr_in_ctx): Remove.  Update callers.
	(gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
	will always be a BIND_EXPR.
	(gimplify_expr): Handle OMP_RETURN_EXPR.
	* tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
	(OMP_PARALLEL): Add 3 operands.
	(OMP_SECTIONS): Add 1 operand.
	(OMP_RETURN_EXPR): Define.

	* tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
	(copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
	* tree-iterator.c (alloc_stmt_list): Assert that we are not
	creating a circular free list.
	(free_stmt_list): Assert that we are not freeing stmt_list_cache.

	* tree-flow.h (move_sese_region_to_fn): Declare.
	(record_vars_into): Declare.
	* tree-cfg.c (make_omp_sections_edges): New.
	(make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
	OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
	OMP_SECTIONS and OMP_SECTION.
	(is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
	(set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
	(verify_stmt): Do not handle OMP_DIRECTIVE_P.
	(gather_blocks_in_sese_region): New.
	(struct move_stmt_d): Declare.
	(move_stmt_r): New.
	(move_block_to_fn): New.
	(move_sese_region_to_fn): New.

	* passes.c (init_optimization_passes): Schedule
	pass_expand_omp after pass_init_datastructures.

	* tree-ssa-operands.c (get_expr_operands): Handle
	OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
	OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.

2006-01-19  Jeff Law  <law@redhat.com>

	* tree-vrp.c (extract_range_from_assert): Refine the result range
	if the variable referenced by the ASSERT_EXPR has a range and
	either the tentative result range or the previous range is a
	VR_ANTI_RANGE.

2006-01-19  Richard Sandiford  <richard@codesourcery.com>

	* c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.

2006-01-19  Jan Hubicka  <jh@suse.cz>

	* tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.

2006-01-19  Paolo Bonzini  <bonzini@gnu.org>

	* combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
	(expand_compound_operation, expand_field_assignment): Fail if the
	bit lengths of an extract operation are out of range.
	(make_extraction): Compute wanted_inner_mode based on the position
	and length of the extraction.  Make it extraction_mode for non-constant
	positions, and do not modify offset in that case.  When generating a
	new MEM, use a mode that can hold the extraction while keeping correct
	alignment.  Remove code that supported MEMs wrapped by USEs.
	(simplify_shift_const_1, force_to_mode) <case USE>: Remove.

2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.md ("Y", "y"): New mode attribute.
	("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
	"*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
	"*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
	"*addsi3_imm_cc", "*addsi3_carry1_cc",
	"*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
	"*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
	"*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
	"*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
	"*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
	"*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
	"addsi3", "subsi3"): Insn patterns removed.
	("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
	"*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
	"*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
	"*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
	"*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
	"*sub<mode>3_cconly2"): New insn patterns.
	("addsi3", "subsi3"): New expanders.

2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>

	* Makefile.in (tree-vect-patterns.o): Add rule for new file.
	* tree-vect-analyze.c (vect_determine_vectorization_factor): Use
	existing STMT_VINFO_VECTYPE if available.
	(vect_mark_relevant): Add special handling for stmts that are
	marked as STMT_VINFO_IN_PATTERN_P.
	(vect_analyze_loop): Call vect_pattern_recog.
	* tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
	* tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
	stmt_info.
	(STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
	(vect_recog_func_ptr): New function-pointer type.
	* tree-vect-patterns.c: New file.
	(vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
	(vect_recog_dot_prod_pattern, vect_pattern_recog):
	(vect_pattern_recog_1): New functions.
	(vect_pattern_recog_funcs): New array of function pointers.

	* tree-vectorizer.h (ternary_op): New enum value.
	* tree-vect-transform.c (vect_create_epilog_for_reduction): Added
	declaration. Revised documentation. Removed redundant dump prints.
	Removed redundant argument. Added support for reduction patterns.
	(vectorizable_reduction): Added support for reduction patterns.
	(vect_transform_stmt): Added support for patterns.

	* expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
	* genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
	* optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
	(expand_widen_pattern_expr): New function.
	(init_optabs): Initialize new optabs udot_prod_optab,
	sdot_prod_optab.
	* optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
	(sdot_prod_optab, udot_prod_optab): Define new optabs.
	(expand_widen_pattern_expr): New function declaration.
	* tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
	tree-codes.
	* tree-inline.c (estimate_num_insns_1): Added cases for new
	tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
	* tree-pretty-print.c (dump_generic_node): Likewise.
	(op_prio): Likewise.
	(op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
	* tree-ssa-operands.c (get_expr_operands): Added case for
	DOT_PROD_EXPR.
	* tree-vect-patterns.c (widened_name_p): New function.
	(vect_recog_dot_prod_pattern): Added function implementation.
	* tree-vect-transform.c (get_initial_def_for_reduction): Added
	cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
	* config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
	* config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.

	* expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
	* genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
	* optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
	(init_optabs): Initialize new optabs widen_ssum_optab,
	widen_usum_optab.
	* optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
	(widen_ssum_optab, widen_usum_optab): Define new optabs.
	* tree-vect-generic.c: (expand_vector_operations_1): Check type of
	use instead of type of def.
	* tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
	function implementation.
	* config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
	widen_ssumv8hi): New.

	* doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
	patterns.

2006-01-19  Richard Sandiford  <richard@codesourcery.com>

	PR c/25805
	* c-decl.c (add_flexible_array_elts_to_size): New function.
	(finish_decl): Use it.

2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>

	* diagnostic.h: Include options.h.
	* config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
	dependancies for diagnostic.h.
	* Makefile.in (DIAGNOSTIC_H): Add options.h.

2006-01-16  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
	(ssa_ro_call_cache_valid): Ditto.
	* tree-ssa-alias.c (sort_tags_by_id): New function.
	(init_transitive_clobber_worklist): Ditto.
	(add_to_worklist): Ditto.
	(mark_aliases_call_clobbered): Ditto.
	(compute_tag_properties): Ditto.
	(set_initial_properties): Ditto.
	(compute_call_clobbered): Ditto.
	(compute_may_aliases):	Call compute_call_clobbered and grouping.
	(compute_flow_sensitive_aliasing): Remove clobbering related code.
	(compute_flow_insensitive_aliasing): Grouping now happens in our
	caller.
	(setup_pointers_and_addressables): Remove clobbering related code.
	(add_may_alias): Ditto.
	(replace_may_alias): Ditto.
	(get_nmt_for): Ditto.
	(create_global_var):
	(is_escape_site): Return an escape_type enumeration.
	* tree-flow-inline.h (is_call_clobbered):  Global var does not
	imply call clobbered.
	(mark_call_clobbered): Take a reason for marking this. Remove
	marking of globalness, and cache invalidation.
	(clear_call_clobbered): Remove cache invalidation code.
	* tree-dfa.c (dump_variable): If details is on, dump the reason
	for escaping.
	* tree-outof-ssa.c (create_temp): Copy escape mask from original
	variable.
	* tree-flow.h (struct ptr_info_def): Add escape mask member.
	(struct var_ann_d): Ditto.
	(enum escape_type): New.
	(mark_call_clobbered): Adjust prototype.
	* tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
	are never call clobbered.
	Record reasons for escaping.
	* tree-ssa-structalias.h (is_escape_site): Update prototype.
	* tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
	(ssa_ro_call_cache_valid): Ditto.
	(clobbered_v_may_defs): Ditto.
	(clobbered_vuses): Ditto.
	(ro_call_vuses): Ditto.
	(clobber_stats): New.
	(init_ssa_operands): Zero out clobber stats.
	(fini_ssa_operands): Print out clobber stats.
	(get_call_expr_operands): Pass callee fndecl to
	add_call_read_ops).
	(add_call_clobber_ops): Remove use of cache.
	Add use of PURE_CONST information.
	(add_call_read_ops): Remove use of cache.
	Add use of static not_read information.

2006-01-18  Alexandre Oliva  <aoliva@redhat.com>

	Introduce TLS descriptors for i386 and x86_64.
	* config/i386/i386.h (TARGET_GNU2_TLS): New macro.
	(TARGET_ANY_GNU_TLS): New macro.
	(enum tls_dialect): Added TLS_DIALECT_GNU2.
	(struct machine_function): Add tls_descriptor_call_expanded_p.
	(ix86_tls_descriptor_calls_expande_in_cfun): New macro.
	(ix86_current_function_calls_tls_descriptor): Likewise.
	* config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
	(override_options): Introduce gnu2 tls dialect.
	(ix86_frame_pointer_required): Functions containing TLSCALLs are
	not leaves.
	(ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
	Likewise.
	(legitimize_tls_address): Adjust logic for GNU2 TLS.
	(ix86_init_machine_status): Initialize new field.
	(ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
	(ix86_tls_module_base): New.
	* config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
	* config/i386/i386.md (UNSPEC_TLSDESC): New constant.
	(tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
	(tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
	(tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
	(*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
	(tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
	(*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
	* config/i386/predicates.md (tls_modbase_operand): New.
	(tp_or_register_operand): New.

2006-01-18  Daniel Berlin  <dberlin@dberlin.org>

	* ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
	(look_for_address_of): Ditto.
	(ipa_init): Walk the function decls.
	(static_execute): Don't set readonly on FUNCTION_DECL's.

2006-01-18  Roger Sayle  <roger@eyesopen.com>

	* config/i386/i386.md (shift spliter): Fix a a typo in the splitter
	for shifts where the source and destination registers are different.

2006-01-18  Paul Brook  <paul@codesourcery.com>

	Merge from csl-arm-branch.
	2005-03-14  Julian Brown  <julian@codesourcery.com>
	* config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
	(aeabi_llsl): Likewise.
	(ashrdi3): Likewise.
	(aeabi_lasr): Likewise.
	(lshrdi3): Likewise.
	(aeabi_llsr): Likewise.
	2005-03-10  Julian Brown  <julian@codesourcery.com>
	* config.gcc: Disable shared libgcc for SymbianOS.
	* config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.

2006-01-18  DJ Delorie  <dj@redhat.com>

	* c-pragma.c (handle_pragma_diagnostic): New.
	(init_pragma): Register it.
	* doc/extend.texi: Document it.

	* diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
	* diagnostic.h (diagnostic_classify_diagnostic): Declare.
	(diagnostic_context): Add classify_diagnostic[].
	* diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
	as errors if they're overridden to DK_WARNING.
	(diagnostic_initialize): Initialize classify_diagnostic[].
	(diagnostic_set_kind_override): New.
	(diagnostic_report_diagnostic): Check for kind changes.
	* opts.c (common_handle_option): Take lang_mask.  Update callers.
	Handle OPT_Werror_.
	* common.opt (Werror=): New.
	* doc/invoke.texi: Document -Werror=*

2006-01-18  Jeff Law  <law@redhat.com>

	* tree-vrp.c (test_for_singularity): Correct test for new
	min limit.  Use operand_equal_p rather than pointer equality
	for testing if new min/max values are equal.

	* tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
	using range information until after propagation and folding.

2006-01-18  Richard Henderson  <rth@redhat.com>
	    Aldy Hernandez  <aldyh@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>
	    Diego Novillo  <dnovillo@redhat.com>

	* omp-low.c: New file.
	* c-omp.c: New file.

2006-01-18  Richard Henderson  <rth@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>
	    Diego Novillo  <dnovillo@redhat.com>

	* doc/invoke.texi: Document -fopenmp.
	* tree-dump.h (debug_function): Declare.
	* hooks.c (hook_bool_tree_bool_false): New function.
	(hook_tree_tree_null): Remove.
	(hook_tree_tree_tree_null): New.
	* hooks.h: Update to match.
	* tree-pretty-print.c (debug_tree_chain): New.
	(print_generic_expr): Handle TDF_CHAIN.
	(dump_generic_node): Handle BLOCK.
	Do not abort with incomplete SWITCH_EXPRs.
	Do not dump body of an OpenMP directive if TDF_SLIM is given.
	<case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
	print space after directive name.
	<OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
	Handle OMP_MASTER and OMP_ORDERED.
	Handle printing of OMP_BODY just in one place, goto
	dump_omp_body in the rest of OMP_* nodes that have
	OMP_BODY.
	Don't handle clause nodes here.  Update omp statements to
	use dump_omp_clauses.
	Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
	OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
	OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
	GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
	GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
	GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
	Adjust output for GOMP_PARALLEL.
	(dump_omp_clauses): New.
	(print_declaration): Dump DECL_VALUE_EXPR.
	(op_symbol_1): Split out of op_symbol.
	(dumping_stmts): Remove.  Update all users.
	* cgraph.c (cgraph_analyze_queue): New.
	(cgraph_add_new_function): New.
	* cgraph.h (cgraph_analyze_queue): Declare.
	(cgraph_add_new_function): Declare.
	(cgraph_lower_function): Remove.
	* tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
	nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
	and TYPE_P nodes in its default clause.
	(empty_body_p): New.
	(tree_range_check_failed): New.
	(build5_stat): New.
	* tree.h (OMP_CLAUSE_REDUCTION_INIT,
	OMP_CLAUSE_REDUCTION_MERGE,
	OMP_CLAUSE_REDUCTION_PLACEHOLDER,
	OMP_CLAUSE_PRIVATE_DEBUG,
	OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
	OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
	OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
	OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
	OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
	OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
	OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
	OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
	OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
	OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
	OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
	OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
	OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
	OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
	(TREE_RANGE_CHECK): New.
	(empty_body_p): Declare.
	(enum omp_clause_default_kind): New.
	(build_string_literal): Declare.
	(enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
	(build5_stat, build5): Declare.
	* tree-pass.h (TDF_CHAIN): Define.
	* tree-pass.h (PROP_gimple_lomp): Define.
	(pass_lower_omp): Declare.
	* diagnostic.h (debug_tree_chain): Declare.
	* builtins.c (get_builtin_sync_mode): Use 0 as last argument to
	mode_for_size.
	(expand_builtin): Handle sync BUILT_IN_*_16 builtins.
	* builtins.c (build_string_literal): Make extern.
	* gcc.c (include_spec_function): New.
	(static_spec_functions): Add it.
	(main): Move load of libgomp.spec ...
	(LINK_COMMAND_SPEC): ... here.
	(link_gomp_spec): New.
	(static_specs): Include it.
	(LINK_COMMAND_SPEC): Add link_gomp.
	(GOMP_SELF_SPECS): New.
	(driver_self_specs): Include it.
	(switch_matches): Don't mark inline.
	(main): Load libgomp.spec.
	* tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
	OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
	and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
	* tree-gimple.h (enum omp_parallel): Declare.
	(determine_parallel_type): Declare.
	(omp_firstprivatize_variable): Declare.
	(omp_reduction_init): Declare.
	(diagnose_omp_structured_block_errors): Declare.
	(struct walk_stmt_info): Add want_return_expr.
	(struct walk_stmt_info): Add want_bind_expr, want_locations.
	(find_omp_clause): Declare.
	(insert_field_into_struct): Declare.
	(struct walk_stmt_info): Move from tree-nested.c
	(walk_stmts): Declare.
	* c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
	to 200505.
	* cgraphunit.c (cgraph_lower_function): Make static.
	(cgraph_finalize_pending_functions): New.
	(cgraph_finalize_function): Call it.
	(cgraph_finalize_compilation_unit): Likewise.
	* builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
	BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
	(BT_FN_UINT_UINT): New.
	(DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
	DEF_FUNCTION_TYPE_VAR_4): Document.
	(BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
	BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
	BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
	BT_FN_VOID_OMPFN_PTR_UINT_UINT,
	BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
	BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
	BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
	BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
	* builtins.def: Update DEF_BUILTIN comment to include COND argument.
	Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
	into separate files.
	(DEF_GOMP_BUILTIN): New.
	(BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
	BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
	BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
	BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
	BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
	BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
	BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
	BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
	BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
	BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
	BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
	BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
	BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
	BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
	BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
	BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
	BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
	BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
	BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
	BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
	BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
	BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
	BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
	BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
	BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
	BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
	* sync-builtins.def: New file, moved from builtins.def.
	* omp-builtins.def: New file, moved from builtins.def.
	* c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
	* gimple-low.c (lower_function_body): Clear data.
	(lower_stmt): Do not handle COMPOUND_EXPR.
	Remove call to print_node_brief.
	* c-tree.h (c_finish_omp_clauses): New prototype.
	(C_DECL_THREADPRIVATE_P): Define.
	(lookup_name_no_remap, c_omp_remap_private): Remove
	(c_begin_omp_parallel, c_finish_omp_parallel): Update.
	(check_for_loop_decls): Update decl.
	(lookup_name_no_remap, c_omp_remap_private): Declare.
	(build_indirect_ref, build_modify_expr, pushdecl,
	pushdecl_top_level): Move to c-common.h.
	* dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
	before the switch, but just in the 2 places that need it.
	* c-decl.c (diagnose_mismatched_decls): Do not check for
	mismatched thread-local attributes when OLDDECL is marked
	threadprivate and NEWDECL has no thread-local attributes.
	(merge_decls): Merge C_DECL_THREADPRIVATE_P.
	(c_gimple_diagnostics_recursively): Rename from
	c_warn_unused_result_recursively.  Invoke
	diagnose_omp_structured_block_errors.
	(check_for_loop_decls): Return a singular decl found.
	* langhooks.c (lhd_omp_predetermined_sharing): Return
	OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
	(lhd_omp_firstprivatize_type_sizes): New.
	(lhd_omp_assignment): New.
	(lhd_omp_predetermined_sharing): New.
	* langhooks.h (struct gimplify_omp_ctx): Forward declare.
	(struct lang_hooks_for_types): Add
	omp_firstprivatize_type_sizes, omp_privatize_by_reference,
	omp_predetermined_sharing, omp_disregard_value_expr,
	omp_private_debug_clause, omp_clause_default_ctor,
	omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
	(c_finish_omp_clauses): New.
	(c_finish_bc_stmt): Diagnose break within omp for.
	(c_begin_omp_parallel, c_finish_omp_parallel): New.
	(build_unary_op): Return error_mark after reporting
	a readonly_error.
	(build_modify_expr): Likewise.
	* gimplify.c: Include optabs.h and pointer-set.h.
	(enum gimplify_omp_var_data): Declare.
	(struct gimplify_omp_ctx): Declare.
	(struct gimplify_ctx): Add fields prev_context, combined_pre_p
	and combined_ctxp.
	(gimplify_ctxp, gimplify_omp_ctxp): New local variables.
	(push_gimplify_context, pop_gimplify_context): Allow nesting.
	(splay_tree_compare_decl_uid): New.
	(new_omp_context): New.
	(delete_omp_context): New.
	(gimple_add_tmp_var): Call omp_add_variable.
	(gimplify_bind_expr): Likewise.
	(gimplify_var_or_parm_decl): If omp_notice_variable returned
	true, disregard DECL_VALUE_EXPR on the decl if any.
	(gimplify_expr_in_ctx): New.
	(omp_firstprivatize_variable, omp_firstprivatize_type_sizes
	omp_add_variable, omp_notice_variable, omp_is_private
	gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
	gimplify_adjust_omp_clauses, gimplify_omp_parallel
	gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
	gimplify_omp_atomic_fetch_op, goa_stabilize_expr
	gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
	gimplify_omp_atomic): New.
	(gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
	OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
	OMP_CRITICAL and OMP_ATOMIC.
	(gimplify_body): Verify gimplify_ctxp is empty after gimplification.
	* c-pragma.h (enum pragma_kind): Add
	PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
	PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
	PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
	PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
	PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
	PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
	PRAGMA_OMP_THREADPRIVATE.
	* tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
	OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
	OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
	OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
	OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
	OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
	OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
	OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
	OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
	* print-tree.c (print_node): Dump DECL_VALUE_EXPR.
	* tree-ssa-dce.c (find_control_dependence): Do not assume that
	ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
	* tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
	OpenMP directives.
	(struct nesting_info): Add field_map,
	suppress_expansion, debug_var_chain.
	(create_nesting_tree): Initialize them.
	(lookup_field_for_decl): Use field_map.
	(get_nonlocal_debug_decl, get_local_debug_decl): New.
	(convert_local_omp_clauses): New.
	(finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
	(walk_body): Split out of walk_function.
	(convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
	(convert_nonlocal_reference): Handle omp statements.
	(convert_local_reference): Likewise.
	(unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
	(unnest_nesting_tree): New.
	(lower_nested_functions): Call it.
	(insert_field_into_struct): Make extern.
	(struct walk_stmt_info): Move to tree-gimple.h.
	(walk_stmts): Make extern.
	* omp-builtins.def: New file.
	* tree-iterator.c (expr_only): Clarify comment.
	* c-common.h (pushdecl_top_level, pushdecl,
	build_modify_expr, build_indirect_ref,
	c_finish_omp_master, c_finish_omp_critical,
	c_finish_omp_ordered, c_finish_omp_barrier,
	c_finish_omp_atomic, c_finish_omp_flush,
	c_finish_omp_for, c_split_parallel_clauses,
	omp_clause_default_kind, c_omp_sharing_predetermined,
	c_omp_remap_decl): Declare.
	* Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
	(OBJS-common): Add omp-low.o.
	(c-omp.o, omp-low.o): Add.
	(gimplify.o): Add dependency on $(OPTABS_H).
	(GTFILES): Add omp-low.c.
	(gt-stringpool.h): Add.
	* tree-cfg.c (set_bb_for_stmt): Do not update the
	block-to-labels map if we are currently expanding to RTL.
	(tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
	checks.
	Handle IDENTIFIER_NODE.
	(tree_verify_flow_info): Do not ICE when emitting error
	messages about invalid labels.
	(dump_function_to_file): Reset CFUN before emitting the body
	of the function.
	(debug_function): New.
	* passes.c (init_optimization_passes): Schedule
	pass_lower_omp.
	* langhooks-def.h (lhd_omp_predetermined_sharing,
	lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
	Declare.
	(LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
	(LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
	(LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
	LANG_HOOKS_OMP_PREDETERMINED_SHARING,
	LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
	LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
	LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
	LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
	LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
	LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
	(LANG_HOOK_DECLS): Use them.

2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
	    Richard Henderson  <rth@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>
	    Diego Novillo  <dnovillo@redhat.com>

	* c-parser.c (pragma_omp_clause): Define.
	(c_parser_declaration_or_fndef): Document OpenMP syntax.
	(c_parser_compound_statement): Likewise.
	(c_parser_statement): Likewise.
	(c_parser_pragma): Handle omp pragmas.
	(OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
	OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
	(c_parser_omp_clause_name, check_no_duplicate_clause,
	c_parser_omp_variable_list,
	c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
	c_parser_omp_clause_copyprivate,
	c_parser_omp_clause_default,
	c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
	c_parser_omp_clause_lastprivate,
	c_parser_omp_clause_nowait,
	c_parser_omp_clause_num_threads,
	c_parser_omp_clause_ordered, c_parser_omp_clause_private,
	c_parser_omp_clause_reduction,
	c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
	c_parser_omp_all_clauses, c_parser_omp_structured_block,
	c_parser_omp_atomic, c_parser_omp_barrier,
	c_parser_omp_critical, c_parser_omp_flush,
	c_parser_omp_for_loop, c_parser_omp_for,
	c_parser_omp_master, c_parser_omp_ordered,
	c_parser_omp_sections_scope, c_parser_omp_sections,
	c_parser_omp_parallel, c_parser_omp_single,
	c_parser_omp_construct, c_parser_omp_threadprivate): New.
	* c-pragma.c (init_pragma): Do omp pragma registration here.
	* c.opt (fopenmp): New flag.

2006-01-18  Eric Christopher  <echristo@apple.com>

	* gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
	* config/darwin.h (GOMP_SELF_SPECS): Define.

2006-01-18  Kazu Hirata  <kazu@codesourcery.com>

	* rtl.h: Remove the prototype for reg_alloc.

2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/25731
	* config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
	hppa[12]*-*-hpux11*): Override default shared libgcc version for both
	sjlj and dwarf2 exception handling.
	* pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
	Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
	* pa/pa.c (function_value): Treat complex and vector types as
	aggregates.
	(function_arg): Likewise.  Only pass scalar floats in the floating
	point argument registers.
	* pa/t-slibgcc-dwarf-ver: New file.
	* pa/t-slibgcc-sjlj-ver: New file.
	* pa/t-slibgcc-elf-ver: Delete file.

2006-01-19  Alan Modra  <amodra@bigpond.net.au>

	* config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
	unlikely_test_section_p test.

2006-01-18  Kazu Hirata  <kazu@codesourcery.com>

	* mode-switching.c (optimize_mode_switching): Make it static.
	* basic-block.h: Remove the prototype for
	optimize_mode_switching.

	* modulo-sched.c (sms_schedule): Make it static.
	* rtl.h: Remove the prototype for sms_schedule.

	* postreload-gcse.c (gcse_after_reload_main): Make it static.
	* rtl.h: Remove the prototype for gcse_after_reload_main.

	* reg-stack.c (reg_to_stack): Make it static.
	* rtl.h: Remove the prototype for reg_to_stack.

	* regrename.c (regrename_optimize, copyprop_hardreg_forward):
	Make them static.
	* rtl.h: Remove the prototypes for regrename_optimize and
	copyprop_hardreg_forward.

2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>

	* config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
	alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
	Test against the appropriate null constant for the mode.
	If 'fixup_overlap' is true, swap the operands if they overlap.
	(alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
	* config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
	alpha_split_tmode_pair and adjust for above change.
	* config/alpha/alpha.md (movtf_internal): Adjust call to
	alpha_split_tfmode_pair and rely on it to swap the operands.
	(movti_internal): New insn and post-reload splitter.
	(movti): New expander.

2006-01-18  Philippe De Muyter  <phdm@macqel.be>

	* config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
	operands.

2006-01-18  Kazu Hirata  <kazu@codesourcery.com>

	* rtlanal.c (global_reg_mentioned_p_1,
	global_reg_mentioned_p): Remove.
	* rtl.h: Remove the prototype for global_reg_mentioned_p.

	* flow.c (initialize_uninitialized_subregs): Make it static.
	* rtl.h: Remove the prototype for
	initialize_uninitialized_subregs.

	* function.c (instantiate_virtual_regs): Make it static.
	* function.h: Remove the prototype for
	instantiate_virtual_regs.

	* regmove.c (regmove_optimize, combine_stack_adjustments):
	Make them static.
	* rtl.h: Remove the prototypes for regmove_optimize and
	combine_stack_adjustments.

2006-01-17  Roger Sayle  <roger@eyesopen.com>

	* config/i386/i386.c (COSTS_N_BYTES): New macro.
	(size_cost): Encode costs in bytes so that a reg-reg addition is
	equivalent to COSTS_N_INSNS(1).
	(override_options): Use the size_cost.branch_cost as the default
	ix86_branch_cost when optimizing for size.

2006-01-18  Ben Elliston  <bje@au.ibm.com>

	* Makefile.in (D32PBIT_FUNCS): New.
	(D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
	(libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
	D64PBIT_FUNCS and D128PBIT_FUNCS.
	(LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
	* mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
	D128PBIT are set.
	(decnumber_dep): Define.
	* doc/libgcc.texi (Decimal float library routines): New node.
	* config/dfp-bit.h, config/dfp-bit.c: New files.

2006-01-18  Ben Elliston  <bje@au.ibm.com>

	* expr.c (emit_move_change_mode): Always adjust addresses, not
	just during reload.  Copy replacements only during reload.
	(emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
	emit_move_via_integer.

2006-01-17  Shantonu Sen  <ssen@opendarwin.org>

	* Makefile.in (check-%, check-consistency): Use $${srcdir}
	instead of $(srcdir) and ${srcdir}.

2006-01-17  Richard Earnshaw  <rearnsha@arm.com>

	PR target/592
	PR middle-end/11135
	* arm.h (struct machine_function): Add pic_reg.
	* arm.c (arm_pic_register): Make unsigned.
	(arm_override_options): Only set arm_pic_register if
	TARGET_SINGLE_PIC_BASE.
	(use_return_insn): Only test for a pic register if it is fixed.
	(arm_compute_save_reg0_reg12_mask): Likewise.
	(thumb_compute_save_reg_mask): Likewise.
	(legitimate_pic_operand): Factor out some known invariants.
	(legitimize_pic_address): If we don't have a fixed pic register,
	then set up a pseudo in the function entry sequence.  Handle the
	pic base being in a pseudo.
	(arm_load_pic_register): Handle the pic register being in a pseudo.
	(arm_expand_prologue): Only set up the pic register if it is fixed.
	(thumb_expand_prologue): Likewise.
	* arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
	(pic_load_addr_based_insn): Likewise.
	(builtin_setjmp_receiver): Don't restore the pic base if it isn't
	fixed.

2006-01-18  Ben Elliston  <bje@au.ibm.com>

	* config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
	decimal float modes for all floating point registers.

	* config/rs6000/predicates.md (reg_or_mem_operand): Pair up
	match_code "mem" with match_test "macho_lo_sum_memory_operand".

2006-01-17  Jakub Jelinek  <jakub@redhat.com>

	PR c/25682
	* c-typeck.c (build_unary_op): Fold offsetof-like expressions
	even when the pointer is not NULL.

2006-01-16  Ian Lance Taylor  <ian@airs.com>

	* common.opt (ftoplevel-reorder): New option.
	* cgraph.c (cgraph_asm_nodes): New global variable.
	(cgraph_asm_last_node): New static variable.
	(cgraph_order): New global variable.
	(cgraph_create_node): Set new order field.
	(cgraph_varpool_node): Likewise.
	(decide_is_variable_needed): Return true if not
	flag_toplevel_reorder.
	(cgraph_add_asm_node): New function.
	* cgraph.h (struct cgraph_node): Add order field.
	(struct cgraph_varpool_node): Add order field.
	(struct cgraph_asm_node): Define.
	(cgraph_asm_nodes, cgraph_order): Declare.
	(cgraph_add_asm_node): Declare.
	* cgraphunit.c (cgraph_varpool_assemble_decl): New static
	function.
	(cgraph_varpool_assemble_pending_decls): Call it.
	(cgraph_output_pending_asms): New static function.
	(cgraph_finalize_compilation_unit): Call it.
	(struct cgraph_order_sort): Define.
	(cgraph_output_in_order): New static function.
	(cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
	!flag_toplevel_reorder case.
	* c-parser.c: Include "cgraph.h".
	(c_parser_asm_definition): Call cgraph_add_asm_node rather than
	assemble_asm.
	* Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
	than -fno-unit-at-a-time.
	* doc/invoke.texi (Option Summary): Mention
	-fno-toplevel-reorder.
	(Optimize Options): Document -fno-toplevel-reorder.  Mention it in
	-funit-at-a-time documentation.

2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
	    Kazu Hirata  <kazu@codesourcery.com>

	* Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.

2006-01-17  Kazu Hirata  <kazu@codesourcery.com>

	* Makefile.in (FUNCTION_H): New.  Use it instead of
	function.h throughout the file.
	* function.h: Include tree.h.

2006-01-17  Ben Elliston  <bje@au.ibm.com>

	* recog.c: Separate some functions with whitespace.

2006-01-16  Richard Henderson  <rth@redhat.com>

	Merge from gomp branch:
	* Makefile.in (TREE_INLINE_H): New.  Use it as needed.
	* tree-inline.h (struct copy_body_data): Move from tree-inline.c
	and rename from struct inline_data.  Rename callee* to dst*;
	caller* to src*; add copy_decl hook, transform_call_graph_edges,
	transform_new_cfg, transform_return_to_modify, and
	transform_lang_insert_block flags; remove cloning_p, versioning_p,
	update_clones_p.
	(copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
	(copy_decl_for_dup): Remove.
	* tree-inline.c (struct inline_data): Move to header.
	(insert_decl_map): Export.
	(remap_decl): Update for member name changes.  Use copy_decl hook.
	Allow for replacement to be a non-decl.  Remove dead code.
	(remap_type_1): Check for existing mapping.
	(remap_type): Export.
	(remap_decls): Update for member name changes.
	(remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
	(copy_body, setup_one_parameter, declare_return_variable): Likewise.
	(expand_call_inline, optimize_inline_calls, clone_body): Likewise.
	(copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
	(tree_function_versioning, build_duplicate_type): Likewise.
	(copy_body_r): Likewise.  Export.
	(copy_decl_for_dup): Split into ...
	(copy_decl_for_dup_finish, copy_decl_to_var,
	copy_decl_no_change, copy_decl_maybe_to_var): ... these.
	(replace_ref_tree, inlining_p): Remove.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

	* ifcvt.c (if_convert): Make it static.
	* rtl.h: Remove the prototype for if_convert.

	* local-alloc.c (local_alloc): Make it static.
	* rtl.h: Remove the prototype for local_alloc.

	* loop.c (loop_optimize): Make it static.
	* cfgloop.h: Remove the prototype for loop_optimize.
	* rtl.h: Likewise.

2006-01-16  DJ Delorie  <dj@redhat.com>

	* reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
	mems.

2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa.md: Disparage copies between general and floating-point registers
	in 32-bit move patterns.

2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>

	PR testsuite/25741
	* Makefile.in (check-%): Depend on site.exp instead of
	$(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
	directories.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

	* global.c (global_alloc): Make it static.
	* rtl.h: Remove the prototype for global_alloc.

2006-01-16  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-alias.c (struct used_part): Add write_only field.
	(get_or_create_used_part_for): Initialize it to true.
	(create_overlap_variables_for): Don't create structure variables
	for structures that only are written to.
	(find_used_portions): Handle MODIFY_EXPR to track whether a
	structure is only written to.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

	* bb-reorder.c (partition_hot_cold_basic_blocks): Make it
	static.
	* basic-block.h: Remove the prototype for
	partition_hot_cold_basic_blocks.

2006-01-16  Rafael Ãvila de EspÃï¿½­ndola <rafael.espindola@gmail.com>

	* cppspec.c (lang_specific_spec_functions): Remove.
	* gcc.c (lookup_spec_function): Use static_spec_functions directly.
	* gcc.h (lang_specific_spec_functions): Remove.
	* gccspec.c (lang_specific_spec_functions): Remove.

2006-01-16  Paolo Bonzini  <bonzini@gnu.org>

	* combine.c (record_value_for_reg): Invalidate registers
	if INSN is null.
	(record_dead_and_set_regs_1): Likewise, by passing them to
	record_value_for_reg.
	(record_dead_and_set_regs): Invalidate stores made by a
	call.  We do not combine across a call, but we still
	relied on equivalences.

2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>

	* tree-vrp.c (extract_range_from_binary_expr): Cope with
	vrp_int_const_binop returning non-constant nodes.

2006-01-16  Paul Brook  <paul@codesourcery.com>

	* config/m68k/m68k.c (output_move_const_into_data_reg):
	Output correct mnemonic for mvz and mvs.

2006-01-16  Gabor Loki  <loki@gcc.gnu.org>

	* rtl-factoring.c: Add sequence abstraction algorithm.
	* cfgcleanup.c (outgoing_edges_match): Extra checks.
	(try_crossjump_to_edge): Avoid deleting preserve label when redirecting
	ABNORMAL edges.
	(block_has_preserve_label): New function.
	* common.opt: Register new pass.
	* Makefile.in: Ditto.
	* passes.c: Ditto.
	* timevar.def: Ditto.
	* tree-pass.h: Ditto.
	* emit-rtl.c (make_jump_insn_raw): Remove forward decl.
	* rtl.h (make_jump_insn_raw): Add forward decl.
	* doc/invoke.texi: Add documentation for -frtl-abstract-sequences.

2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
	    Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (fold_minmax): New static function.
	(fold_binary) <MIN_EXPR>: Call it.
	<MAX_EXPR>: Likewise.
	* stor-layout.c (place_field): Use DECL_SIZE consistently
	in the computation of the new record size.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

	* cse.c (cse_condition_code_reg): Make it static.
	* rtl.h: Remove the prototype for cse_condition_code_reg.

	* combine.c (combine_instructions): Make it static.
	* rtl.h: Remove the prototype for combine_instructions.

2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/25168
	* tree.c (get_file_function_name_long): Concatenate the first global
	object name with a string derived from the input filename of the object
	for type "F".

2006-01-16  Ben Elliston  <bje@au.ibm.com>

	* config/i386/winnt-stubs.c: Update FSF address.
	* config/xtensa/ieee754-df.S: Ditto.
	* config/xtensa/ieee754-sf.S: Ditto.

2006-01-14  Ian Lance Taylor  <ian@airs.com>

	* ifcvt.c (noce_init_if_info): New static function, broken out of
	noce_process_if_block.
	(noce_process_if_block): Call noce_init_if_info.
	(check_cond_move_block): New static function.
	(cond_move_process_if_block): New static function.
	(process_if_block): Call cond_move_process_if_block.

2006-01-15  Kazu Hirata  <kazu@codesourcery.com>

	* cselib.c (hash_table): Rename to cselib_hash_table.
	(cselib_clear_table, discard_useless_values,
	remove_useless_values, cselib_lookup_mem, cselib_lookup,
	cselib_init, cselib_finish): Adjust uses of hash_table.

2006-01-14  Kazu Hirata  <kazu@codesourcery.com>

	PR tree-optimization/25485
	* tree-vrp.c (extract_range_from_binary_expr): Handle cases
	where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
	is known to be false and true, respectively.

2006-01-14  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/22548
	PR tree-optimization/22555
	PR tree-optimization/22501
	* Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
	* params.def (salias-max-array-elements): New parameter.
	* params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
	* doc/invoke.texi (salias-max-array-elements): Document.
	* tree-flow-inline.h (var_can_have_subvars): We also handle
	arrays now.
	* tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
	COMPONENT_REF.
	* tree-ssa-structalias.c (params.h): Include.
	(push_fields_onto_fieldstack): Handle ARRAY_TYPE.
	(find_func_aliases): Handle multiple constraints from ARRAY_REF.
	(get_constraint_for): For ADDR_EXPR operating on something
	containing an ARRAY_REF, add all subvars to the solution.
	(handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
	* tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
	for creating MUST_DEFs.
	(get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.

2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
	functions.
	(number_of_iterations_ne, number_of_iterations_lt_to_ne,
	assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
	number_of_iterations_le): New functions.
	(number_of_iterations_special): Removed.
	(number_of_iterations_exit): Do not use number_of_iterations_special.
	* tree.c (unsigned_type_for): Always return integer type.

2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
	Richard Guenther  <rguenther@suse.de>

	PR rtl-optimization/24257
	* gcse.c (find_moveable_store): Only consider a store movable
	when the SET_SRC of the insn can be assigned to a register.

2006-01-14  Ian Lance Taylor  <ian@airs.com>

	* tree.c (tree_not_class_check_failed): New function.
	* tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
	(tree_not_class_check_failed): Declare.

2006-01-13  Ian Lance Taylor  <ian@airs.com>

	* reload1.c (do_output_reload): Add assertion rejecting a
	CALL_INSN.

2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>

	* combine.c (struct reg_stat): Add new fields truncation_label and
	truncated_to_mode.
	(record_value_for_reg): Reset truncated_to_mode.
	(record_truncated_value): New function.
	(check_promoted_subreg): Call it.  Rename to check_conversions.
	(combine_instructions): Rename check_promoted_subreg to
	check_conversions.
	(reg_truncated_to_mode): New function.
	(make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
	(gen_lowpart_or_truncate): New function.
	(force_to_mode): Use it instead of gen_lowpart.

2006-01-13  Diego Novillo  <dnovillo@redhat.com>

	* tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
	VAR is a tag, not its type tag.

2006-01-13  Alexandre Oliva  <aoliva@redhat.com>

	* config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
	alternatives to match style of other entries.
	(*vec_extractv2di_1_sse): Likewise.  Fix mode attr.

2006-01-13  Daniel Berlin  <dberlin@dberlin.org>

	PR tree-optimization/25771
	* tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
	SSA_NAMES.

2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/24365
	* tree-inline.c (declare_return_variable): If the return variable
	was marked as a non gimple complex, set the return slot variable
	to be a non gimple comple variable.

2006-01-13  Richard Guenther  <rguenther@suse.de>

	* builtins.c (expand_builtin_sincos): New function.
	(expand_builtin_mathfn_3): Remove dead code, sin and cos
	do not set errno.
	(expand_builtin): Expand sincos using expand_builtin_sincos.

2006-01-12  DJ Delorie  <dj@redhat.com>

	* config/m32c/shift.md: Rewrite: Allow arbitrary operands for
	shift counts, separate SI shifts for m32c vs m16c, pass shift type
	so that constant shifts can be split.
	* config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
	(m32c_valid_pointer_mode): Make static.
	(shift_gen_func_for): New.
	(m32c_prepare_shift): Use it.  Split large const shifts into
	multiple shifts.
	* config/m32c/predicates.md (shiftcount_operand): Allow more
	general operands.
	(longshiftcount_operand): New.
	* doc/md.texi (Machine Constraints): Document In6.

2006-01-13  Ben Elliston  <bje@au.ibm.com>

	* doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
	REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
	documentation.

2006-01-12  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
	to try to avoid clobbering pieces of structures when we know
	something about the whole structure.
	* tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR

2006-01-13  Ben Elliston  <bje@au.ibm.com>

	* doc/rtl.texi (Insns): Remove statement that libcalls cannot
	return in memory, as this is no limitation is no longer present.

2006-01-12  DJ Delorie  <dj@redhat.com>

	* config/m32c/addsub.md (addhi3): Add two more alternatives, for
	mova with fb, and for fb+0 -> An.

	* config/m32c/mov.md (peephole2): Fix enabling logic.

	* config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
	DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
	DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
	FINI_ARRAY_SECTION_ASM_OP): Define.

	* config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
	variable.
	(m32c_legitimize_reload_address): New logic to reload FB to An.
	(m32c_output_reg_push): Add newline.
	(m32c_output_reg_pop): Likewise.

2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>

	* struct-equiv.c (find_dying_inputs): Fix off-by-one bug.

2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>

	* config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.

2006-01-11  Kazu Hirata  <kazu@codesourcery.com>

	* config/sh/predicates.md (sh_rep_vec): Add parallel to
	match_code.

2006-01-11  Ben Elliston  <bje@au.ibm.com>

	* rtlanal.c (find_reg_note): Assert insn is not null.

2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>

	* df-scan.c (df_hard_reg_init): Move declaration of i outside
	ifdef.

2006-01-11  Jeff Law  <law@redhat.com>

	* tree-ssa-threadupdate.c (threaded_edges): New VEC to
	hold edge pairs.
	(mark_threaded_blocks, register_jump_thread): New functions.
	(thread_through_all_blocks): Remove unwanted argument.  No
	longer rely on e->aux to communicate thread target info.
	Call mark_threaded_blocks.  Release the threaded_blocks
	bitmap and threaded_edges vector when complete.
	* tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
	(threaded_blocks): Remove.
	(tree_ssa_dominator_optimize): Remove initialization and
	finalization of threaded_blocks.  Simplify call to
	thread_through_all_blocks.
	(thread_across_edge): Call register_jump_thread rather than
	storing thread information into e->aux.
	(free_all_edge_infos): Simplify now that e->aux is no longer
	used to communicate with thread_through_all_blocks.
	* tree-flow.h (thread_through_all_blocks): Update prototype.
	(register_jump_thread): Prototype.

2006-01-11  Kazu Hirata  <kazu@codesourcery.com>

	* df-core.c (df_compact_blocks, df_bb_replace): Use
	SET_BASIC_BLOCK instead of BASIC_BLOCK.

2006-01-11  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/25734
	* tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
	stop propagation after successful propagation to the LHS.

2006-01-11  Kazu Hirata  <kazu@codesourcery.com>

	* basic-block.h (control_flow_graph): Change the type of
	x_basic_block_info to VEC(basic_block,gc) *.
	(BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
	basic_block_info.
	(SET_BASIC_BLOCK): New.
	* cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
	instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
	* cfgbuild.c (find_basic_blocks): Likewise.
	* cfglayout.c (fixup_reorder_chain): Likewise.
	* cfgrtl.c (create_basic_block_structure,
	rtl_create_basic_block): Likewise.
	* ifcvt.c (find_if_case_1): Likewise.
	* tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
	Likewise.

2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>

	* Makefile.in: Removed rotted odf.c entry.

2006-01-11  Hans-Peter Nilsson  <hp@axis.com>

	PR target/25706
	* config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
	("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
	("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
	output pattern modifier, not %e.
	* config/cris/cris.c (cris_op_str): Update comment about pattern
	modifier.
	(cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
	before falling through into...
	<case 'E'>: Redefined from old 'e' case.

2006-01-11  Jan Hubicka  <jh@suse.cz>

	PR target/25042
	* i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128

2006-01-11  Jan Hubicka  <jh@suse.cz>

	* i386.h (TARGET_DECOMPOSE_LEA): Kill.
	* i386.c (x86_decompose_lea): Kill.
	(ix86_rtx_costs): Kill.

2006-01-11  Jan Hubicka  <jh@suse.cz>

	* cgraph.c (cgraph_insert_node_to_hashtable): New function.
	* cgraph.h (cgraph_node): Add inline_decl.
	(cgraph_insert_node_to_hashtable): Declare.
	(save_inline_function_body): Declare.
	* cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
	clones.
	(cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
	(cgraph_function_versioning): Update call of tree_function_versioning.
	(save_inline_function_body): New function.
	* function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
	saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
	* ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
	(cgraph_default_inline_p): Likewise.
	(cgraph_decide_inlining_incrementally): Likewise.
	* tree-inline.c (inline_data): Kill saving_p add update_clones_p.
	(copy_bb): Kill saving; do updating of clones.
	(copy_cfg_body): Kill saving.
	(initialize_inlined-parameters): Likewise.
	(expand_call_inline): Likewise.
	(save_body): Kill.
	(tree_function_versioning): New parameter "update_clones".
	(inlining_p): Kill saving.
	* tree-inline.h (tree_function_versioning): Update prototype.
	* tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
	saving.

2006-01-11  Ian Lance Taylor <ian@airs.com>

	* combine.c (struct undo): Remove is_int.  Enumify types of undos.
	Allow undoing set of machine mode.
	(do_SUBST): Use enums instead of is_int.
	(do_SUBST_MODE): New function.
	(SUBST_MODE): New macro.
	(try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
	reg and trying to replace reg_regno_rtx with a new register.
	(undo_all): Use new enums, handle undoing a PUT_MODE change.
	(simplify_set): Use SUBST_MODE.
	(distribute_notes): Remove code that tried to update reg notes
	for regno_reg_rtx changes.

2006-01-11  Paolo Bonzini  <bonzini@gnu.org>

	PR tree-optimization/23109
	PR tree-optimization/23948
	PR tree-optimization/24123

	* Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
	* tree-cfg.c (single_noncomplex_succ): New.
	* tree-flow.h (single_noncomplex_succ): Declare it.
	* tree-ssa-math-opts.c (enum place_reciprocal): Remove.
	* tree-ssa-math-opts.c (enum place_reciprocal): Remove.
	(struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
	insert_bb, register_division_in, insert_reciprocals,
	replace_reciprocal, free_bb): New.
	(execute_cse_reciprocals_1): Rewritten.
	(execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
	Do not commit any edge insertion.  Always compute dominators and
	create the allocation pool.
	* target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
	* target.h (struct gcc_target): Add min_divistions_for_recip_mul.
	* targhooks.c (default_min_divistions_for_recip_mul): New.
	* targhooks.h (default_min_divistions_for_recip_mul): New prototype.
	* passes.c (init_optimization_passes): Run recip after tree loop
	optimizations.
	* doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.

2006-01-11  Danny Berlin <dberlin@dberlin.org>
	    Kenneth Zadeck <zadeck@naturalbridge.com>

	* df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
	DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
	DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
	DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
	DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
	DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
	DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
	DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
	DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
	DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
	DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
	DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
	DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
	DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
	DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
	DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
	DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
	DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
	DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
	DF_SCAN_POST_ALLOC): New macros.
	(df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
	df_free_bb_function, df_local_compute_function, df_init_function,
	df_dataflow_function, df_confluence_function_0,
	df_confluence_function_n, df_transfer_function,
	df_finalizer_function, df_free_function, df_dump_problem_function,
	df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
	df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
	df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
	df_urec_bb_info, ) New types.
	(df_invalidated_by_call, df_all_hard_regs, df_state) New public
	variables.
	(df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
	df_analyze_simple_change_some_blocks,
	df_analyze_simple_change_one_block, df_compact_blocks,
	df_bb_replace, df_bb_regno_last_use_find,
	df_bb_regno_first_def_find, df_bb_regno_last_def_find,
	df_insn_regno_def_p, df_find_def, df_find_use,
	df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
	df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
	df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
	debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
	debug_df_chain, df_get_dependent_problem, df_chain_create,
	df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
	df_grow_bb_info, df_chain_dump, df_print_bb_index,
	df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
	df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
	df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
	df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
	df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
	df_rescan_blocks, df_ref_create, df_get_artificial_defs,
	df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
	df_ref_remove, df_insn_refs_delete, df_refs_delete,
	df_reorganize_refs, df_set_state, df_hard_reg_init,
	df_read_modify_subreg_p) New public functions.
	* df-core.c: The core dataflow solver and glue routines for rtl
	dataflow.
	(df_init, df_add_problem, df_set_blocks, df_finish,
	df_hybrid_search_forward, df_hybrid_search_backward,
	df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
	df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
	df_bb_regno_last_use_find, df_bb_regno_first_def_find,
	df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
	df_reg_defined, df_find_use, df_reg_used, df_dump,
	df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
	df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
	debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
	debug_df_useno, reset_df_after_reload): New functions.
	* df-scan.c: The scanning fuctions, once in df.c, completely
	rewritten so that they now fully model the functionality of
	register usage at the backend.
	(df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
	df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
	df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
	df_grow_insn_info, df_rescan_blocks, df_ref_create,
	df_get_artificial_defs, df_get_artificial_uses,
	df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
	df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
	df_refs_delete, df_reorganize_refs, df_set_state,
	df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
	df_def_record_1, df_defs_record, df_uses_record,
	df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
	df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
	df_record_exit_block_uses, df_hard_reg_init): New functions.

	* df-problems.c: Seven concrete dataflow problems that use the
	scanning in df-scan.c and are solved by the engine in df-core.c.
	(df_get_dependent_problem, df_chain_create, df_chain_unlink,
	df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
	df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
	df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
	df_ru_free_bb_info, df_ru_alloc,
	df_ru_bb_local_compute_process_def,
	df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
	df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
	df_ru_transfer_function, df_ru_free, df_ru_dump,
	df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
	df_rd_free_bb_info, df_rd_alloc,
	df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
	df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
	df_rd_transfer_function, df_rd_free, df_rd_dump,
	df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
	df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
	df_lr_local_compute, df_lr_init, df_lr_confluence_0,
	df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
	df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
	df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
	df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
	df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
	df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
	df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
	df_urec_mark_reg_change, df_urec_check_earlyclobber,
	df_urec_mark_reg_use_for_earlyclobber,
	df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
	df_urec_local_compute, df_urec_init, df_urec_local_finalize,
	df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
	df_urec_dump, df_urec_add_problem, df_chain_alloc,
	df_chain_create_bb_process_use, df_chain_create_bb,
	df_chain_finalize, df_chain_free, df_chains_dump,
	df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
	df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
	df_reg_lifetime): New functions.
	* df.c: Deleted file.
	* ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
	consistent with new df api.
	* modulo-sched.c (sms_schedule, rest_of_handle_sms,
	rest_of_handle_sms): Ditto.
	* web.c (unionfind_union, union_defs, entry_register, web_main):
	Ditto.
	* loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
	invariant_expr_equal_p, find_defs, check_dependencies,
	find_invariant_insn, find_invariants_to_move, move_invariant_reg,
	free_inv_motion_data, move_loop_invariants): Ditto.
	* Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
	Update dependencies.
	(odf.c): Added defective entry that was deleted later in day.
	* sched-deps.c (sched_analyze_1): Ditto.

2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-ssa-operands.c (get_expr_operands): Record addressable
	variables directly.  Do not call add_stmt_operands for CONST_DECLs
	and ARRAY_DECLs.
	(get_indirect_ref_operands): Remove handling of *(&a + offset) case.
	(add_stmt_operands): Handle only objects satisfying SSA_VAR_P.

2006-01-11  Ben Elliston  <bje@au.ibm.com>

	* config/i386/i386.c (ix86_return_in_memory): Fix comment: this
	function returns true in the positive case.

2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/20754
	* config/pa/pa.md: Create separate 32 and 64-bit move patterns
	for SI, DI, SF and DF modes.  Add alternatives to copy between
	general and floating point registers to the 32-bit patterns.
	* config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
	* config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
	(SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
	generating 64-bit code.
	* config/pa/pa.c (output_move_double): Handle copies between general
	and floating registers.

2006-01-10  Stuart Hastings  <stuart@apple.com>

	* config/i386/i386.md (set_got): Update.
	(set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
	(builtin_setjmp_receiver): Mach-O support.
	* config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
	(GOT_SYMBOL_NAME): Define.
	(FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
	(TARGET_DEEP_BRANCH_PREDICTION): Remove.
	* config/i386/i386.c (override_options): Revise for Darwin.
	(USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
	support.  (darwin_x86_file_end): New.  (output_set_got): Add label
	parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
	* config/i386/i386-protos.h (output_set_got): Likewise.
	* config/darwin.c (machopic_legitimize_pic_address): Update
	regs_ever_live[].

2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
	when MODE isn't BLKmode.

2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>

	PR rtl-optimization/25367
	* config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.

2006-01-10  Hans-Peter Nilsson  <hp@axis.com>

	PR target/25718
	* config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
	for a negative bound.

2006-01-10  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-structalias.c (get_constraint_for_component_ref):
	Never override with anything constraint.

2006-01-10  Jan Beulich  <jbeulich@novell.com>

	* config/i386/i386.c (ix86_data_alignment): Don't force alignment to
	256 bits when optimize_size.

2006-01-10  Jan Beulich  <jbeulich@novell.com>

	* config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
	MASK_ALIGN_DOUBLE.
	* config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
	* config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
	arguments.

2006-01-10  Ben Elliston  <bje@au.ibm.com>

	* config/rs6000/predicates.md (easy_fp_constant): Discount decimal
	float modes.
	* config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
	(TARGET_SCALAR_MODE_SUPPORTED_P): Define.
	(USE_FP_FOR_ARG): Reject decimal float modes.
	(function_arg_advance): Likewise.
	(output_toc): Handle emitting TDmode, DDmode and SDmode constants.
	(rs6000_handle_altivec_attribute): Do not permit decimal floating
	point types in AltiVec vectors.
	(rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
	(rs6000_libcall_value): Likewise.

2006-01-09  Bob Wilson  <bob.wilson@acm.org>

	* config/xtensa/ieee754-df.S: New file.
	* config/xtensa/ieee754-sf.S: New file.
	* config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
	(LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
	* config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.

2006-01-09  Kazu Hirata  <kazu@codesourcery.com>

	* config/sh/predicates.md (binary_float_operator,
	binary_logical_operator, commutative_float_operator,
	equality_comparison_operator, greater_comparison_operator,
	less_comparison_operator, logical_operator,
	noncommutative_float_operator, shift_operator,
	symbol_ref_operand, unary_float_operator): Remove redundant
	conditionals.

2006-01-09  Jeff Law  <law@redhat.com>

	* tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
	code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
	now unused arguments.  Callers updated.
	(eliminate_redundant_computations): Remove now unused arguments,
	callers updated.
	(local_fold): Remove, no longer used.
	(find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
	and moved to...
	* tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
	(simplify_cond): New function.
	(forward_propagate_into_cond): Call simplify_cond.

2006-01-09  Alexandre Oliva  <aoliva@redhat.com>

	* config/i386/sse.md (*vec_extractv2di_1_sse2): New.
	(*vec_extractv2di_1_sse): New.

2006-01-09  Ben Elliston  <bje@au.ibm.com>

	* config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.

2006-01-08  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-structalias.c (get_constraint_for): Remove
	anyoffset argument.
	(get_constraint_for_component_ref): Likewise.
	(do_deref): Likewise.
	(get_constraint_for): Likewise.
	(do_structure_copy): Likewise.
	(handle_ptr_arith): Likewise.
	(find_func_aliases): Likewise.  Remove unused need_anyoffset
	variable.

2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
	    Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/sh.h (CONST_OK_FOR_K16): Define.
	(CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
	(EXTRA_CONSTRAINT_C16): Remove.
	(EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
	(EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
	EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
	* config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
	constants of SHmedia.  Handle nested constant expressions of
	SHmedia correctly.
	(andcosts): Fix the costs for SHmedia constants.
	(sh_rtx_costs): Take account of outer_code for SHmedia constants.
	* config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
	(*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
	(*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
	(movv4hi_i, movv2si_i):	Likewise.
	(movsi_const): Adjust the second operand of ior so to match with
	the Csu constraint.
	(movdi_const, movdi_const_32bit): Likewise.
	(movdi_const_16bit+1): Don't sign-extend LOW.
	(movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
	step.
	(*double_shori): Fix the split condition.  Use GEN_INT instead
	of get_int_mode calls.  Mask lower 16-bit of the argument of
	the last GEN_INT.
	(sym2GOTPLT): Remove.
	(symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
	gen_rtx_UNSPEC.
	* config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
	instead of EXTRA_CONSTRAINT_C16.

2006-01-07  Ian Lance Taylor  <ian@airs.com>
	    David Edelsohn  <edelsohn@gnu.org>

	PR rtl-optimization/25662
	* optabs.c (simplify_expand_binop): Use simplify_binary_operation
	for constant operands instead of simplify_gen_binary.
	* simplify-rtx.c (simplify_gen_binary): Swap commutative operands
	after trying simplify_binary_operation

2006-01-06  Daniel Berlin  <dberlin@dberlin.org>

	* tree.c (iterative_hash_expr): Hash decls based on UID.

2006-01-06  Eric Christopher  <echristo@apple.com>

	* doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
	(TARGET_UNWIND_EMIT): Fix spelling.
	* target.h (gcc_target): Add except_table_label.
	* except.c (output_function_exception_table): Use.
	* varasm.c (default_emit_except_table_label): New.
	* target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
	define.
	(asm_out): Add here.
	* output.h (default_emit_except_table_label): Prototype.
	* config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
	* config/darwin.c (darwin_emit_except_table_label): Define.
	* config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.

2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/18527
	* tree-ssa-loop-niter.c (number_of_iterations_cond,
	number_of_iterations_special, number_of_iterations_exit):
	Move base and step of an iv to a single structure.  Add
	no_overflow flag, and use it in # of iterations analysis.
	* tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
	folded_casts argument.
	(simple_iv): Pass base and step in a structure.  Set no_overflow
	flag.
	(scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
	Evaluate expensiveness of computing # of iterations instead of
	the final expression.
	* tree-scalar-evolution.h (affine_iv): New structure.
	(simple_iv): Declaration changed.
	* tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
	* tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
	find_givs_in_stmt): Changed due to simple_iv change.

2006-01-06  Jeff Law  <law@redhat.com>

	PR ada/24994
	* tree-cfg.c (bsi_replace): Rename final argument from
	PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
	change (stmt -> orig_stmt).
	* tree-eh.c (verify_eh_throw_stmt_node): New function.
	(bsi_remove): Add new argument.  Remove EH information
	if requested.
	(verify_eh_throw_table_statements): New function.
	(bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
	updated.
	* tree-optimize.c (execute_free_cfg_annotations): Verify
	the EH throw statement table after removing annotations.
	* except.h (verify_eh_throw_table_statements): Prototype.
	* tree-flow.h (bsi_remove): Update prototype.
	* tree-vrp.c (remove_range_assertions): Add new argument to
	bsi_remove call.
	* tree-ssa-loop-im.c (move_computations_stmt): Likewise.
	* tree-complex.c (expand_complex_div_wide): Likewise.
	* tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
	* tree-tailcall.c (eliminate_tailcall): Likewise.
	* tree-ssa-dse.c (dse_optimize_stmt): Likewise.
	* tree-ssa-loop-ivopts.c (remove_statement): Likewise.
	* tree-nrv.c (tree_nrv): Likewise.
	* tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
	* tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
	(combine_blocks): Likewise.
	* tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
	* tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
	(cleanup_control_flow): Likewise.
	(remove_forwarder_block): Likewise.
	* tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
	* tree-sra.c (sra_replace): Likewise.
	* tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
	(forward_propagate_single_use_vars): Likewise.
	* tree-ssa-dce.c (remove_dead_stmt): Likewise.
	* tree-inline.c (expand_call_inline): Likewise.
	* tree-vect-transform.c (vect_transform_loop): Likewise.
	* tree-outof-ssa.c (rewrite_trees): Likewise.
	* tree-cfg.c (make_goto_expr_edges): Likewise.
	(cleanup_dead_labels): Likewise.
	(tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
	(bsi_move_before, bsi_move_after): Likewise.
	(bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
	(tree_redirect_edge_and_branch, tree_split_block): Likewise.

2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/25528
	* tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
	and IMAGPART_EXPR.
	* tree-flow-inline.h (var_can_have_subvars): Handle complex types
	on non gimple variables.  Also add checks at the top for decls and
	mtags.
	* tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
	complex types.
	* tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
	and IMAGPART_EXPR for creating MUST_DEFs.
	(get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
	and NAME_MEMORY_TAG separately from the DECLs.

2006-01-06  Richard Guenther  <rguenther@suse.de>

	* tree-dfa.c (mark_new_vars_to_rename): Create stmt
	annotation, if necessary.
	* tree-ssa-pre.c (create_expression_by_pieces): Remove
	redundant calls to update_stmt.
	* tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
	Likewise.

2006-01-05  Richard Henderson  <rth@redhat.com>

	* c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.

2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>

	* c-typeck.c: Update copyright date.

2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>

	* c-typeck.c (build_c_cast): Always warn when casting
	from a pointer to an integer of different size, even if
	the node was constant.

2006-01-05  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/22555
	* tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
	if one structure field is an array.
	* tree-ssa-operands.c (get_expr_operands): Continue scanning
	operands even if we found a subvar, but ignore VOPs in this
	case.
	* tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
	for renaming.
	* tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.

2006-01-05  Richard Earnshaw  <rearnsha@arm.com>

	PR middle-end/24998
	* arm/t-netbsd (LIB2FUNCS_EXTRA): Define.

2006-01-05  Richard Guenther  <rguenther@suse.de>
	    Diego Novillo  <dnovillo@redhat.com>

	* tree-pass.h (TODO_remove_unused_locals): Define.
	* gimple-low.c (expand_var_p, remove_useless_vars,
	pass_remove_useless_vars): Remove.  Update all users.
	* tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
	(remove_unused_locals): New function.
	* tree-flow.h (remove_unused_locals): Declare.
	* passes.c (execute_todo): Call remove_unused_locals if
	TODO_remove_unused_locals is set.
	* tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
	* tree-ssa-dce.c (pass_dce): Likewise.
	* tree-outof-ssa.c (pass_del_ssa): Likewise.

2006-01-05  Richard Guenther  <rguenther@suse.de>

	* tree-flow.h (struct fieldoff): Decompose field to
	type, size and decl.
	* tree-ssa-alias.c (create_sft): Take type as parameter.
	(create_overlap_variables_for): Store type, size and decl
	in the fieldoff structure.
	* tree-ssa-structalias.c (fieldoff_compare): Adjust users
	of struct fieldoff.
	(push_fields_onto_fieldstack): Likewise.
	(create_variable_info_for): Likewise.  Use offset for the
	SFT name if the decl is not available.

2006-01-04  Paul Brook  <paul@codesourcery.com>

	* config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.

2006-01-04  Daniel Berlin  <dberlin@dberlin.org>

	* lambda-code.c (can_put_in_inner_loop): Relax
	restrictions.
	(can_put_after_inner_loop): New function.
	(can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
	(perfect_nestify): Change to make copies and modify uses.

2006-01-04  Richard Henderson  <rth@redhat.com>

	Merge from gomp branch:
	* c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
	via integer constant.
	(pragma_lex): Remove.
	* c-pch.c (c_common_pch_pragma): Accept the name as an argument,
	rather than parsing it.
	* c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
	handle_pragma_extern_prefix): Add %< %> quotes.
	(registered_pragmas): New.
	(c_register_pragma_1): New.
	(c_register_pragma): Use it.
	(c_register_pragma_with_expansion): Likewise.
	(c_invoke_pragma_handler): New.
	(init_pragma): Use cpp_register_deferred_pragma directly for
	pch_preprocess.
	* c-pragma.h (enum pragma_kind): New.
	(pragma_handler): New.
	(c_invoke_pragma_handler): Declare.
	* c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
	CPP_PRAGMA_EOL.
	* c-common.h (c_common_pch_pragma): Update decl.
	* Makefile.in (c-parser.o): Update dependencies.
	(GTFILES): Add c-pragma.h.
	* c-parser.c (struct c_token): Add pragma_kind.
	(struct c_parser): Add in_pragma.
	(c_lex_one_token): Always initialize keyword and pragma_kind.
	Extract data for CPP_PRAGMA.
	(c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
	(c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
	Don't allow CPP_PRAGMA_EOL if in_pragma.
	(c_parser_consume_pragma): New.
	(c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
	(c_parser_skip_to_end_of_parameter): Likewise.
	(c_parser_skip_to_end_of_block_or_statement): Likewise.
	(c_parser_skip_to_pragma_eol): New.
	(c_parser_external_declaration): Handle CPP_PRAGMA.
	(c_parser_compound_statement_nostart): Likewise.
	(c_parser_statement_after_labels): Likewise.
	(c_parser_pragma): New.
	(pragma_lex): Likewise.
	(c_parser_pragma_pch_preprocess): New.
	(c_parser_new): Merge into ...
	(c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.

2006-01-04  Jeff Law  <law@redhat.com>

	PR ada/24994
	* tree-cfg.c (bsi_replace): Remove the original statement
	from the EH throw statement table.

2006-01-04  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
	make the prototype extern "C" and add throw ().

	PR target/25554
	* config/i386/i386.md (testqi_ext_3): Ensure len is positive
	and pos non-negative and pos + len <= 32.
	(testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
	drop pos + len < HOST_BITS_PER_WIDE_INT test.
	(testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.

	PR c/25559
	* c-common.c (handle_vector_size_attribute): Reject zero vector size
	as well as sizes not multiple of component size.

	PR debug/25562
	* function.c (instantiate_expr): New function.
	(instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
	walk its DECL_VALUE_EXPR with instantiate_expr.

	* dwarf2out.c (loc_descriptor_from_tree_1): Don't add
	DW_OP_deref{,_size} if address isn't going to be added.

2006-01-04  Ben Elliston  <bje@au.ibm.com>

	* config/fp-bit.h: Use top-of-file comment from libgcc2.c.
	* config/fp-bit.c: Likewise.

2006-01-03  Daniel Berlin  <dberlin@dberlin.org>

	* dominance.c: Add comment about why we use DFS numbering
	of dominance tree.

2006-01-03  Jakub Jelinek  <jakub@redhat.com>
	    Richard Henderson  <rth@redhat.com>

	Merge from gomp-branch:
	* varasm.c (assemble_variable): Handle thread-local COMMON data.
	* defaults.h (ASM_OUTPUT_TLS_COMMON): Define.

2006-01-03  Paolo Bonzini  <bonzini@gnu.org>

	PR rtl-optimization/25578
	* combine.c (combine_simplify_rtx, force_to_mode): Don't
	pass a parameter to simplify_shift_const if changing ASHIFTRT
	to LSHIFTRT.

2006-01-03  Adrian Straetling  <straetling@de.ibm.com>

	* builtins.c (get_builtin_sync_mem): New function.
	(expand_builtin_sync_operation, expand_builtin_compare_and_swap,
	expand_builtin_lock_test_and_set, expand_builtin_lock_release):
	Call get_builtin_sync_mem to generate mem rtx.

2006-01-03  Richard Guenther  <rguenther@suse.de>

	PR c/25183
	* stmt.c (add_case_node): Make sure to clear overflow flags
	from ranges.

2006-01-03  Jakub Jelinek  <jakub@redhat.com>

	Merge from gomp-branch.
	* config/sparc/sync.md: New file.
	* config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
	UNSPECV_LDSTUB): New constants.
	* config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
	* config/sparc/predicates.md (memory_reg_operand): New predicate.
	* config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
	prototype.

2006-01-03  Roger Sayle  <roger@eyesopen.com>

	* combine.c (reg_subword_p): New predicate to test whether the
	destination of a set refers to a subword/piece of a register.
	(try_combine): Generalize the code to merge the setting of a
	pseudo to a constant followed by a set of a subword of that
	register to a constant.

2006-01-03  Kazu Hirata  <kazu@codesourcery.com>

	* basic-block.h (control_flow_graph): Change the type of
	x_label_to_block_map to VEC(basic_block,gc) *.
	* tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
	set_bb_for_stmt): Adjust the uses of x_label_to_block_map.

	* tree-ssa-propagate.c (cfg_blocks): Change the type to
	VEC(basic_block,heap) *.
	(cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
	ssa_prop_fini): Adjust the uses of cfg_blocks.

2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>

	* fold-const.c (operand_equal_p): Accept a NULL operand 0 for
	COMPONENT_REFs.
	* emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
	hashing trees instead of a pointer hash.
	(mem_attrs_htab_eq): Do a deep compare instead of a pointer
	compare for MEM_EXPR.

	PR rtl-optimization/25130
	* cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
	when comparing MEMs for GCSE

2006-01-03  Ben Elliston  <bje@au.ibm.com>

	* targhooks.h (default_decimal_float_supported_p): Declare.
	* targhooks.c (default_decimal_float_supported_p): Define.
	* target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
	`default_decimal_float_supported_p'.
	* doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.

2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>

	* combine.c (apply_distributive_law <SUBREG>): Check
	TRULY_NOOP_TRUNCATION.

2006-01-02  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (have_switched_text_section): Delete.
	(have_multiple_function_sections): New.
	(have_location_lists): Make 'bool'.
	(add_AT_loc_list): Use 'true' not '1'.
	(dwarf2out_switch_text_section): Set have_multiple_function_sections.
	(output_loc_list): Use have_multiple_function_sections.
	(output_ranges): Likewise.
	(dwarf2out_begin_function): Set have_multiple_function_sections if
	necessary.
	(dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
	Check function_section rather than DECL_SECTION_NAME.
	(dwarf2out_finish): Use have_multiple_function_sections.
	Don't clear have_location_lists.

2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
	    Jan Hubicka  <jh@suse.cz>

	* cfglayout.c (fixup_reorder_chain): Remove kludge for the
	case of conditional jump jumping to the next instruction.
	* cfgrtl.c (force_nonfallthru_and_redirect): Accept all
	cases of conditional jump jumping to the next instruction.

2006-01-02  Jan Hubicka  <jh@suse.cz>

	* i386.c (*_cost): Add COSTS_N_INSNS.
	(ix86_rtx_costs): Do not use COSTS_N_INSNS.

2006-01-02  Paolo Bonzini  <bonzini@gnu.org>

	PR target/25259
	* Makefile.in (DECNUMINC): Include libdecnumber's build directory.

2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	* config/arm/arm.c (all_fpus): Fix comment typo.
	* config/darwin.c: Likewise.
	* config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
	* config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
	* config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.

2006-01-01  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
	(rs6000_split_compare_and_swapqhi): New.
	* config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
	(sync_compare_and_swapqhi_internal): New.
	* config/rs6000/rs6000-protos.h: Declare.
