* regrename.c (struct du_head): Make nregs signed.
	(closed_chains): Remove.
	(create_new_chain): Return the new chain.
	(chain_from_id): New static function.
	(dump_def_use_chain): Change argument to be an int, indicating
	the first ID to print.  All callers changed.
	(merge_overlapping_regs): Use chain_from_id.  Assert that
	chains don't conflict with themselves.
	(rename_chains): Take no argument.  Iterate over id_to_chain
	rather to find chains to rename.  Clear tick before the main
	loop.
	(struct incoming_reg_info): New struct.
	(struct bb_rename_info): New struct.
	(init_rename_info, set_incoming_from_chain, merge_chains): New
	static functions.
	(regrename_analyze): New static function, broken out of
	regrename_optimize.  Record and make use of open chain information
	at basic block boundaries, and merge chains where possible.
	(scan_rtx_reg): Make this_nregs signed.  Don't update
	closed_chains.
	(build_def_use): Return a bool to indicate success.  All callers
	changed.  Don't initialize global data here.
	(regrename_optimize): Move most code out of here into
	regrename_analyze.
	* regs.h (add_range_to_hard_reg_set, remove_range_from_hard_reg_set,
	range_overlaps_hard_reg_set_p, range_in_hard_reg_set_p): New
	static inline functions.
	* vec.h (FOR_EACH_VEC_ELT_FROM): New macro.

From-SVN: r178645

2011-09-07  Martin Jambor  <mjambor@suse.cz>

	* g++.dg/tree-ssa/pr49911.C: Added flag -fstrict-enums.

From-SVN: r178642

2011-09-07  Martin Jambor  <mjambor@suse.cz>

	PR middle-end/50301
	* ipa-cp.c (find_more_values_for_callers_subset): Check jump
	function index bounds.
	(perhaps_add_new_callers): Likewise.

From-SVN: r178640

2011-09-07  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/49911
	* tree-sra.c (analyze_access_subtree): Change type of to-be-replaced
	enumerations to the corresponding plain integer type.

	* testsuite/g++.dg/tree-ssa/pr49911.C: New test.

From-SVN: r178639

2011-09-07  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/50319
	* tree-if-conv.c (set_bb_predicate): Assert we only set
	canonical predicates.
	(add_to_predicate_list): Simplify.  Allow TRUTH_NOT_EXPR
	around canonical predicates.
	(predicate_bbs): Do not re-gimplify already canonical
	predicates.  Properly unshare them though.
	(find_phi_replacement_condition): Simplify.

From-SVN: r178638

gcc/
	PR target/49030
	* config/arm/arm-protos.h (maybe_get_arm_condition_code): Declare.
	* config/arm/arm.c (maybe_get_arm_condition_code): New function,
	reusing the old code from get_arm_condition_code.  Return ARM_NV
	for invalid comparison codes.
	(get_arm_condition_code): Redefine in terms of
	maybe_get_arm_condition_code.
	* config/arm/predicates.md (arm_comparison_operator): Use
	maybe_get_arm_condition_code.

gcc/testsuite/
	PR target/49030
	* gcc.dg/torture/pr49030.c: New test.

From-SVN: r178636

2011-09-07  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/50288
	* gfortran.dg/class_4c.f03: Modified ("dg-do link" and "dg-final").
	* gfortran.dg/class_4d.f03: Deleted.
	* gfortran.dg/class_45b.f03: Modififed ("dg-do link").

From-SVN: r178635

tree-ssa-forwprop.c (forward_propagate_into_gimple_cond): Canonicalize negated predicates by swapping edges.

2011-09-07  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-forwprop.c (forward_propagate_into_gimple_cond):
	Canonicalize negated predicates by swapping edges.
	(forward_propagate_into_cond): Likewise.

	* gcc.dg/tree-ssa/forwprop-16.c: New testcase.

From-SVN: r178634

2011-09-07  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/50213
	* tree-flow.h (simple_iv_increment_p): Declare.
	* tree-ssa-dom.c (simple_iv_increment_p): Export.  Also handle
	POINTER_PLUS_EXPR.
	* tree-ssa-forwprop.c (ssa_forward_propagate_and_combine): Do
	not propagate simple IV counter increments.

From-SVN: r178633

gcc:
	* config/rs6000/rs6000.c (compute_save_world_info): Test
	cfun->has_nonlocal_label to determine if the out-of-line save
	world call may be used.
ada:
	* gcc-interface/Makefile.in (darwin): Provide powerpc64 system 
	implementation.
	* system-darwin-ppc64.ads: New file.

From-SVN: r178630

2011-09-07  Jiangning Liu  <jiangning.liu@arm.com>

	PR tree-optimization/46021
	* gcc.dg/tree-ssa/20040204-1.c: Don't XFAIL on arm*-*-*.

From-SVN: r178628

	* config/mn10300/mn10300.c (mn10300_insert_setlb_lcc): Set the jump
	label on the parallel part of the insn.

From-SVN: r178626

re PR rtl-optimization/50191 (Strange debug insn produced for TOC compiling 416.gamess with profile-generate)

	PR debug/50191
	* dwarf2out.c (mem_loc_descriptor) <case MEM>: Try
	avoid_constant_pool_reference first instead of last.

From-SVN: r178625

From-SVN: r178623

2011-09-06  Benjamin Kosnik  <bkoz@redhat.com>

	* include/std/tuple (_Tuple_impl::_M_head, _M_tail): Mark constexpr.
	(tuple(tuple&&)): Same.
	(tuple(const tuple<_UElements...>& __in)): Same.
	(tuple(tuple<_UElements...>&& __in)): Same.
	(tuple_cat(const tuple<_TElements...>&, const tuple<_UElements...>&)):
	Same.
	(get): Same.
	* include/std/array: Consolidate array::data usage.
	* testsuite/23_containers/array/requirements/constexpr_functions.cc:
	Remove extra include.
	* testsuite/20_util/tuple/creation_functions/constexpr.cc: New.
	* testsuite/20_util/tuple/cons/constexpr-2.cc: Add tests.
	* testsuite/20_util/tuple/cons/constexpr-3.cc: Same.
	* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Adjust line numbers.

From-SVN: r178620

From-SVN: r178618

2011-09-06  François Dumont  <fdumont@gcc.gnu.org>
	    Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/hashtable_policy.h (_Prime_rehash_policy::
	_M_next_bkt): Cast _M_max_load_factor to long double.
	(_Prime_rehash_policy::_M_bkt_for_elements): Use _M_next_bkt.
	(_Prime_rehash_policy::_M_need_rehash): Likewise; cast all
	float quantities to long double.

Co-Authored-By: Paolo Carlini <paolo.carlini@oracle.com>

From-SVN: r178615

From-SVN: r178614

From-SVN: r178612

	PR middle-end/50266
	* c-common.c (c_fully_fold_internal) <ADDR_EXPR>: Fold offsetof-like
	computations.

From-SVN: r178611

2011-09-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_function_value_regno_p): Use AX_REG.
        (function_value_32): Do not check TARGET_MMX, TARGET_SSE or TARGET_AVX.

testsuite/ChangeLog:

2011-09-06  Uros Bizjak  <ubizjak@gmail.com>

        * gcc.target/i386/builtin-apply-mmx.c: Require ia32 effective target.

From-SVN: r178610

From-SVN: r178609

	* gcc-interface/Makefile.in (gnatlib-shared-darwin): Remove
	reference to "-lm".

From-SVN: r178608

Makefile.in (darwin, SO_OPTS): Provide architecture size switches to the link phase for shared libs.


	* gcc-interface/Makefile.in (darwin, SO_OPTS): Provide architecture
	size switches to the link phase for shared libs.

From-SVN: r178606

	* gcc-interface/Makefile.in (x86_64 darwin arch): Adjust 
	LIBGNAT_TARGET_PAIRS for x86 and x86_64 variants.

From-SVN: r178605

	PR c++/50296
	* semantics.c (register_constexpr_fundef): Call is_valid_constexpr_fn.
	(cx_check_missing_mem_inits): Handle bases and empty trivial members.
	(validate_constexpr_fundecl): Remove.
	* decl.c (start_preparsed_function): Don't call it.
	* cp-tree.h: Don't declare it.

From-SVN: r178604

gcc/

2011-09-06  Enkovich Ilya  <ilya.enkovich@intel.com>

	PR middle-end/44382
	* target.def (reassociation_width): New hook.

	* doc/tm.texi.in (reassociation_width): Likewise.

	* doc/tm.texi (reassociation_width): Likewise.

	* doc/invoke.texi (tree-reassoc-width): New param documented.

	* hooks.h (hook_int_uint_mode_1): New default hook.

	* hooks.c (hook_int_uint_mode_1): Likewise.

	* config/i386/i386.h (ix86_tune_indices): Add
	X86_TUNE_REASSOC_INT_TO_PARALLEL and
	X86_TUNE_REASSOC_FP_TO_PARALLEL.

	(TARGET_REASSOC_INT_TO_PARALLEL): New.
	(TARGET_REASSOC_FP_TO_PARALLEL): Likewise.

	* config/i386/i386.c (initial_ix86_tune_features): Add
	X86_TUNE_REASSOC_INT_TO_PARALLEL and
	X86_TUNE_REASSOC_FP_TO_PARALLEL.

	(ix86_reassociation_width) implementation of
	new hook for i386 target.

	* params.def (PARAM_TREE_REASSOC_WIDTH): New param added.

	* tree-ssa-reassoc.c (get_required_cycles): New function.
	(get_reassociation_width): Likewise.
	(swap_ops_for_binary_stmt): Likewise.
	(rewrite_expr_tree_parallel): Likewise.

	(rewrite_expr_tree): Refactored. Part of code moved into
	swap_ops_for_binary_stmt.

	(reassociate_bb): Now checks reassociation width to be used
	and call rewrite_expr_tree_parallel instead of rewrite_expr_tree
	if needed.

gcc/testsuite/

2011-09-06  Enkovich Ilya  <ilya.enkovich@intel.com>

	* gcc.dg/tree-ssa/pr38533.c (dg-options): Added option
	--param tree-reassoc-width=1.

	* gcc.dg/tree-ssa/reassoc-24.c: New test.
	* gcc.dg/tree-ssa/reassoc-25.c: Likewise.

From-SVN: r178602

2011-09-06  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/47025
	* tree-ssa-alias.c (ref_maybe_used_by_call_p_1): BUILT_IN_VA_END
	uses nothing.
	(call_may_clobber_ref_p_1): BUILT_IN_VA_END is a barrier like
	BUILT_IN_FREE.
	(stmt_kills_ref_p_1): BUILT_IN_VA_END kills what its argument
	definitely points to.
	* tree-ssa-structalias.c (find_func_aliases_for_builtin_call):
	BUILT_IN_VA_START doesn't let its va_list argument escape.
	* tree-ssa-dce.c (propagate_necessity): BUILT_IN_VA_END does
	not make any previous stores necessary.

From-SVN: r178601

	* gcc-interface/Makefile.in, gcc-interface/Make-lang.in
	(gnattools, regnattools, cross-gnattools, canadian-gnattools,
	gnatlib, gnatlib-sjlj, gnatlib-zcx, gnatlib-shared, gnatlib_and_tools):
	New targets.
	(TOOLS_FLAGS_TO_PASS): New.
	(../stamp-tools): Reintroduce, to avoid merge conflicts.

From-SVN: r178600

2011-09-06  Martin Jambor  <mjambor@suse.cz>

	* ipa-inline.h (struct inline_summary): Move versionable flag...
	* cgraph.h (struct cgraph_local_info): ...here
	* ipa-cp.c (determine_versionability): Use the new versionable flag.
	(determine_versionability): Likewise.
	(ipcp_versionable_function_p): Likewise.
	(ipcp_generate_summary): Likewise.
	* ipa-inline-analysis.c (dump_inline_summary): Do not dump the
	versionable flag.
	(compute_inline_parameters): Do not clear the versionable flag.
	(inline_read_section): Do not stream the versionable flag.
	(inline_write_summary): Likewise.
	* lto-cgraph.c (lto_output_node): Stream the versionable flag.
	(input_overwrite_node): Likewise.

From-SVN: r178598

2011-09-06  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/48149
	* tree-ssa-sccvn.c (vn_get_expr_for): Simplify.  Fix tuplification bug.
	(vn_valueize): Move earlier.
	(valueize_expr): Use vn_valueize.
	(simplify_binary_expression): Simplify, also combine COMPLEX_EXPR
	operands.
	(simplify_unary_expression): Simplify.

	* gcc.dg/tree-ssa/ssa-fre-32.c: New testcase.

From-SVN: r178597

2011-09-06  Robert Dewar  <dewar@adacore.com>

	* sem_ch10.adb, impunit.ads, impunit.adb (Not_Impl_Defined_Unit): New
	name for Is_RM_Defined_Unit. Also several fixes to this unit.

From-SVN: r178596

2011-09-06  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/48317
	* tree-ssa-sccvn.h (struct vn_nary_op_s): Make op a true
	trailing array.
	(sizeof_vn_nary_op): New inline function.
	(vn_nary_op_lookup_pieces): Adjust.
	(vn_nary_op_insert_pieces): Likewise.
	* tree-ssa-sccvn.c (vn_nary_op_eq): Also compare the length.
	(init_vn_nary_op_from_pieces): Adjust signature.  Deal with
	any number of operands.
	(vn_nary_length_from_stmt): New function.
	(init_vn_nary_op_from_stmt): Adjust for CONSTRUCTOR handling.
	(vn_nary_op_lookup_pieces): Adjust signature and allocate properly
	sized temporary.
	(vn_nary_op_lookup): Likewise.
	(vn_nary_op_lookup_stmt): Likewise.
	(vn_nary_op_insert_into): Likewise.
	(vn_nary_op_insert_stmt): Likewise.
	(visit_use): Handle CONSTRUCTOR as nary.
	* tree-ssa-pre.c (phi_translate_1): Adjust.
	(create_expression_by_pieces): Likewise.
	(compute_avail): Likewise.

	* gcc.dg/tree-ssa/ssa-fre-31.c: New testcase.

From-SVN: r178595

2011-09-06  Robert Dewar  <dewar@adacore.com>

	* impunit.ads, impunit.adb (Is_RM_Defined_Unit): New function.
	* s-rident.ads: New restriction No_Implementation_Units
	(this restriction is also part of the profile
	No_Implementation_Extensions)
	* sem_ch10.adb (Analyze_With_Clause): Add check for
	No_Implementation_Units restriction.

From-SVN: r178594

2011-09-06  Jerome Guitton  <guitton@adacore.com>

	* sysdep.c (__gnat_get_task_options): Disable VX_SPE_TASK
	on vThreads.

2011-09-06  Thomas Quinot  <quinot@adacore.com>

	* s-solita.adb: Minor reformatting.

2011-09-06  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb (Analyze_Subprogram_Body_Helper): The body that
	is a rewriting of an expression function does not freeze previous
	entities.

2011-09-06  Robert Dewar  <dewar@adacore.com>

	* impunit.adb (Is_Known_Unit): Fix bad handling of Ada 2012 case

From-SVN: r178593

2011-09-06  Tristan Gingold  <gingold@adacore.com>

	* gcc-interface/Makefile.in: Handle e500v2-wrs-vxworksae like           
	powerpc-wrs-vxworksae.

From-SVN: r178592

2011-09-06  Thomas Quinot  <quinot@adacore.com>

	* s-os_lib.ads (Spawn): Minor documentation clarification,
	Success is True for a zero exit status.

2011-09-06  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch5.adb: Add message for common iterator error.

2011-09-06  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch3.adb (Build_Initialization_Call): If the target is a
	selected component discriminated by a current instance, replace
	the constraint with a reference to the target object, regardless
	of whether the context is an init_proc.

2011-09-06  Robert Dewar  <dewar@adacore.com>

	* exp_attr.adb: Descriptor_Size is never static.

2011-09-06  Robert Dewar  <dewar@adacore.com>

	* gnat_ugn.texi: Add documentation for LSLOC metric in gnatmetric

2011-09-06  Hristian Kirtchev  <kirtchev@adacore.com>

	* gnat_rm.texi: Clarify that attribute Descriptor_Size is
	non-static.

2011-09-06  Ed Schonberg  <schonberg@adacore.com>

	* sem_res.adb (Resolve): An expression that is the body of an
	expression function does not freeze.

2011-09-06  Matthew Heaney  <heaney@adacore.com>

	* a-csquin.ads, a-cusyqu.adb, a-cbprqu.adb, a-cbsyqu.adb,
	a-cuprqu.adb: Changed copyright notice to indicate current
	year only.

2011-09-06  Vincent Celier  <celier@adacore.com>

	* prj.adb: Minor spelling error fix in comment
	* sem_res.adb: Minor reformatting

2011-09-06  Pascal Obry  <obry@adacore.com>

	* sysdep.c (winflush_nt): Removed as not needed anymore.
	(winflush_95): Likewise.
	(winflush_init): Likewise.
	(winflush_function): Likewise.
	(getc_immediate_common): Remove call to winflush_function.

From-SVN: r178591

2011-09-06  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_attr.adb (Expand_N_Attribute_Reference): Rewrite the
	processing for Descriptor_Size.
	* gnat_rm.texi: Rephrase the wording for attribute Descriptor_Size
	to account for its broader usage.
	* sem_attr.adb (Analyze_Attribute): Change the error detection
	circuitry for Descriptor_Size as the attribute is now applicable
	to all types.

From-SVN: r178590

2011-09-06  Robert Dewar  <dewar@adacore.com>

	* sem_attr.adb, prj-nmsc.adb, exp_aggr.adb: Minor reformatting.

From-SVN: r178589

arm.c (arm_preferred_simd_mode): Check TARGET_NEON_VECTORIZE_DOUBLE instead of TARGET_NEON_VECTORIZE_QUAD.


	* config/arm/arm.c (arm_preferred_simd_mode): Check
	TARGET_NEON_VECTORIZE_DOUBLE instead of
	TARGET_NEON_VECTORIZE_QUAD.
	(arm_autovectorize_vector_sizes): Likewise.
	* config/arm/arm.opt (mvectorize-with-neon-quad): Make inverse
	mask of mvectorize-with-neon-double.  Add RejectNegative.
	(mvectorize-with-neon-double): New.

From-SVN: r178588