* lto-symtab.c (lto_cgraph_replace_node): Merge needed instead of force flags.
	* cgraph.c (cgraph_add_thunk): Use mark_reachable_node.
	(cgraph_remove_node): Update.
	(cgraph_mark_needed_node): Remove.
	(cgraph_mark_force_output_node): New.
	(dump_cgraph_node): Do not dump needed flag.
	(cgraph_node_cannot_be_local_p_1): Update.
	(cgraph_can_remove_if_no_direct_calls_and_refs): Update.
	* cgraph.h (symtab_node_base): Add force_output flag.
	(cgraph_node): Remove needed flag.
	(varpool_node): Remove force_output flag.
	(cgraph_mark_needed_node): Remove.
	(cgraph_mark_force_output_node): New.
	(cgraph_only_called_directly_or_aliased_p,
	varpool_can_remove_if_no_refs, varpool_all_refs_explicit_p): Update.
	* ipa-cp.c (ipcp_generate_summary): Remove out of date assert.
	* cgraphunit.c (cgraph_decide_is_function_needed): rewrite.
	(cgraph_add_new_function); Update.
	(cgraph_mark_if_needed); Update.
	(verify_cgraph_node): Update.
	(cgraph_analyze_function): Alias target is reachable.
	(process_function_and_variable_attributes): Update: externally_visible
	flag makes function reachable.
	(cgraph_analyze_functions): Update dumping.
	* lto-cgraph.c (lto_output_node, lto_output_varpool_node,
	input_overwrite_node, input_varpool_node): Update streaming.
	* lto-streamer-out.c (produce_symtab): Use force_output.
	* ipa.c (process_references): Weakrefs must be processed.
	(cgraph_remove_unreachable_nodes): Likewise; update for new
	force_output flag.
	(varpool_externally_visible_p); Weakrefs are externally visible
	even if they are not.
	(function_and_variable_visibility): Update; when processing alias
	pair force the targets to be output.
	(whole_program_function_and_variable_visility): Use mark_reachable_node.
	* trans-mem.c (ipa_tm_mark_needed_node): Remove
	(ipa_tm_mark_force_output_node): New function.
	(ipa_tm_create_version_alias, ipa_tm_create_version): Update.
	* gimple-fold.c (can_refer_decl_in_current_unit_p): Be lax about aliases.
	* varasm.c (mark_decl_referenced): Update.
	(find_decl_and_mark_needed): Remove.
	(find_decl): New function.
	(weak_finish, finish_aliases_1, assemble_alias): Update; do not mark
	alias targets as needed.
	(dump_tm_clone_pairs): Update.
	* tree-inline.c (copy_bb): Update check.
	* symtab.c (dump_symtab_base): Dump force_output.
	* tree-ssa-structalias.c (ipa_pta_execute): Use force_output.
	* passes.c (execute_todo): Fix dumping.
	* varpool.c (decide_is_variable_needed, varpool_finalize_decl): Update.
	(varpool_analyze_pending_decls): Alias target is reachable.
	(varpool_create_variable_alias): Finalize weakrefs.

	* class.c (make_local_function_alias): Do not mark symbol referenced.

	* objc-acct.c (mark_referenced_methods); Use
	cgraph_mark_force_output_node.

	* gcc-interface/utils.c (gnat_write_global_declarations): Update for new
	force_output placement.

	* lto/lto-partition.c (partition_cgraph_node_p): Use force_output.

From-SVN: r186624

	PR bootstrap/53021
	* alias.h (UNIQUE_BASE_VALUE_SP, UNIQUE_BASE_VALUE_ARGP,
	UNIQUE_BASE_VALUE_FP, UNIQUE_BASE_VALUE_HFP): Define.
	* alias.c (init_alias_targets): Use UNIQUE_BASE_VALUE_*
	macros instead of constants.
	* dse.c (record_store): Check for SP ADDRESS by comparing
	XWINT to UNIQUE_BASE_VALUE_SP instead of expecting
	XEXP to be stack_pointer_rtx.

From-SVN: r186623

tree-ssa-copy.c (propagate_tree_value_into_stmt): Use update_call_from_tree when propagating into a call.

2012-04-20  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-copy.c (propagate_tree_value_into_stmt): Use
	update_call_from_tree when propagating into a call.

	* g++.dg/torture/20120420-1.C: New testcase.

From-SVN: r186622

	* config/rs6000/rs6000.c (rs6000_emit_savres_rtx): Formatting.
	(rs6000_emit_prologue, rs6000_emit_epilogue): Likewise.  Rename
	sp_offset to frame_off.  Move world save code earlier.

From-SVN: r186621

2012-04-20  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/53050
	* tree-ssa-forwprop.c (ssa_forward_propagate_and_combine):
	Do only one transform on COND_EXPRs at the same time.

From-SVN: r186620

From-SVN: r186619

2012-04-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/53052
	* include/std/type_traits (is_explicitly_convertible): Remove.
	* testsuite/20_util/is_explicitly_convertible: Likewise.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc:
	Adjust dg-error line numbers.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
	Likewise.
	* testsuite/20_util/declval/requirements/1_neg.cc: Likewise.

From-SVN: r186618

2012-04-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/53052
	* include/std/type_traits (is_explicitly_convertible): Remove.
	* testsuite/20_util/is_explicitly_convertible: Likewise.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc:
	Adjust dg-error line numbers.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
	Likewise.
	* testsuite/20_util/declval/requirements/1_neg.cc: Likewise.

From-SVN: r186617

	PR target/53040
	* config/rs6000/rs6000.c (rs6000_savres_strategy): When using
	static chain, set REST_INLINE_FPRS too.

From-SVN: r186616

gcc/
	* tree-dump.c (dequeue_and_dump) <BIT_FIELD_REF>: Dump the three child
	nodes.

From-SVN: r186615

tree-vect-loop.c (vect_analyze_loop_operations): Do not vectorize loops that can never run more often than the vectorization factor.

2012-04-20  Richard Guenther  <rguenther@suse.de>

	* tree-vect-loop.c (vect_analyze_loop_operations): Do not
	vectorize loops that can never run more often than the
	vectorization factor.

From-SVN: r186614

libgcc/
	* config/alpha/linux-unwind.h (alpha_fallback_frame_state): Use
	siginfo_t instead of struct siginfo.
	* config/bfin/linux-unwind.h (bfin_fallback_frame_state): Likewise.
	* config/i386/linux-unwind.h (x86_fallback_frame_state): Likewise.
	* config/ia64/linux-unwind.h (ia64_fallback_frame_state)
	(ia64_handle_unwabi): Likewise.
	* config/mips/linux-unwind.h (mips_fallback_frame_state): Likewise.
	* config/pa/linux-unwind.h (pa32_fallback_frame_state): Likewise.
	* config/sh/linux-unwind.h (shmedia_fallback_frame_state)
	(sh_fallback_frame_state): Likewise.
	* config/tilepro/linux-unwind.h (tile_fallback_frame_state): Likewise.
	* config/xtensa/linux-unwind.h (xtensa_fallback_frame_state): Likewise.

From-SVN: r186610

From-SVN: r186609

Also allocate heap bitmaps bit in page size units and clear
context when putting G structures on free list.

From-SVN: r186607

From-SVN: r186605

From-SVN: r186604

From-SVN: r186600

From-SVN: r186599

From-SVN: r186597

* genmodes.c (make_complex_modes): Avoid unnecessary use of strncpy.
We verified above that the string(including trailing NUL) fits in buf,
so just use memcpy.

From-SVN: r186596

2012-04-19  Richard Guenther  <rguenther@suse.de>

	* symtab.c (dump_symtab_base): Use TREE_STRING_POINTER
	for dumping DECL_SECTION_NAME.

From-SVN: r186594

re PR c/52977 (internal compiler error: Segmentation fault with `-x c-header' or `-x cxx-header' option)

	PR middle-end/52977
	* tree.h (VECTOR_CST_NELTS): Use part number of types again.
	(struct tree_vector): Adjust GTY length.
	* tree.c (make_vector_stat): Don't set VECTOR_CST_NELTS.

	* gengtype.c (struct walk_type_data): Add in_record_p and loopcounter
	members.
	(walk_type, <TYPE_POINTER, TYPE_ARRAY>): Handle case where our
	caller emitted the length calulation already.
	(walk_type, <TYPE_UNION, TYPE_STRUCT>): Emit length calculations

From-SVN: r186593

2012-04-19  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/53031
	* tree-vrp.c (adjust_range_with_scev): Revert back to
	using max_loop_iterations.

From-SVN: r186592

	* diagnostic.c (emit_diagnostic): Move va_end call after user
	of the va_list.
	(warning, warning_at, pedwarn, permerror): Ditto.

From-SVN: r186591

2012-04-19  Richard Guenther  <rguenther@suse.de>

	* ira-int.h (ira_allocno_object_iter_cond): Avoid out-of-bound
	array access.

From-SVN: r186590

	PR target/53033
	* config/avr/avr.c (avr_out_load_psi): Fix assembler template for
	the case *(X+const).

From-SVN: r186588

2012-04-19  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

	* config/arm/sync.md (sync_optab): Change ior attribute to "or".

From-SVN: r186587

From-SVN: r186586

2012-04-19  Richard Guenther  <rguenther@suse.de>

	PR rtl-optimization/44688
	* loop-iv.c (determine_max_iter): Only return max_iter.
	(iv_number_of_iterations): Also use the recorded loop bound
	on the maximum number of iterations.
	* loop-unroll.c (decide_unroll_runtime_iterations): Use
	max_iter to avoid unrolling loops that do not roll.
	(decide_unroll_stupid): Likewise.

	* gcc.dg/var-expand1.c: Increase array size to make unrolling
	possibly profitable.

From-SVN: r186585

From-SVN: r186584

From-SVN: r186580

gcc/
	* targhooks.c (default_case_values_threshold): Fix code style nit.

	* stmt.c (add_case_node, expand_case): Move logic to remove/reduce
	case range and type folding from here...
	* gimplify.c (gimplify_switch_expr): ... to here.  Expect NULL_TREE
	type, as documented in tree.def

fortran/
	* trans-decl.c (gfc_trans_entry_master_switch): Build SWITCH_EXPR
	with NULL_TREE type instead of void_type_node.
	* trans-io.c (io_result): Likewise.
	* trans-stmt.c (gfc_trans_integer_select,
	gfc_trans_character_select): Likewise.

go/
	* go-gcc.cc (Gcc_backend::switch_statement): Build SWITCH_EXPR
	with NULL_TREE type instead of void_type_node.

From-SVN: r186579

	* cgraph.h (verify_symtab, verify_symtab_node, verify_symtab_base):
	Declare.
	* cgraphunit.c (verify_cgraph_node): Verify symtab base; do not verify 
	cgraph hash and same comdat groups.
	(cgraph_optimize); Verify symbol table.
	* ipa.c (cgraph_remove_unreachable_nodes): Verify symbol table.
	(dissolve_same_comdat_group_list): Work on symtab nodes.
	(function_and_variable_visibility): Dissolve variable same comdat group
	lists, too.
	* symtab.c: Include timevar.h
	(verify_symtab_base, verify_symtab_node, verify_symtab): New functions.

From-SVN: r186578

	* tree-switch-conversion.c (info): Remove global pass info.
	(check_range, check_process_case, check_final_bb, create_temp_arrays,
	free_temp_arrays, gather_default_values, build_constructors,
	array_value_type, build_one_array, build_arrays, gen_def_assigns,
	fix_phi_nodes, gen_inbound_check): Pass info around from ...
	(process_switch): ... here.  Unify message format.  Return a const
	char pointer to the failure reason message.
	(do_switchconv): Unify message format.  Update process_switch usage.

From-SVN: r186576

	* tree.def (CASE_LABEL_EXPR): Fix documentation, mention all operands.
	* tree-cfg.c (edge_to_cases): Fix documentation.

From-SVN: r186575

	* config/alpha/sync.md (fetchop_name): Change ior attribute to "or".

From-SVN: r186572

re PR tree-optimization/52976 (Revision 186384 breaks the polyhedron tests aermod.f90 and doduc.f90 at -O3 -ffast-math)

gcc:

2012-04-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/52976
	* tree-ssa-reassoc.c (add_to_ops_vec_max_rank): Delete.
	(possibly_move_powi): New function.
	(rewrite_expr_tree): Call possibly_move_powi.
	(rewrite_expr_tree_parallel): Likewise.
	(attempt_builtin_powi): Change call of add_to_ops_vec_max_rank to
	call add_to_ops_vec instead.


gcc/testsuite:

2012-04-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/52976
	gfortran.dg/reassoc_11.f: New test.

From-SVN: r186568

re PR tree-optimization/52976 (Revision 186384 breaks the polyhedron tests aermod.f90 and doduc.f90 at -O3 -ffast-math)

gcc:

2012-04-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/52976
	* tree-ssa-reassoc.c (stmt_is_power_of_op): New function.
	(decrement_power): Likewise.
	(propagate_op_to_single_use): Likewise.
	(zero_one_operation): Handle __builtin_pow* calls in linearized
	expression trees; factor logic into propagate_op_to_single_use.
	(undistribute_ops_list): Allow operands with repeat counts > 1.


gcc/testsuite:

2012-04-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/52976
	gfortran.dg/reassoc_7.f: New test.
	gfortran.dg/reassoc_8.f: Likewise.
	gfortran.dg/reassoc_9.f: Likewise.
	gfortran.dg/reassoc_10.f: Likewise.

From-SVN: r186567

2012-04-18  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/44688
	* cfgloop.h (record_niter_bound): Declare.
	* tree-ssa-loop-niter.c (record_niter_bound): Export.
	Update the estimation with the upper bound here...
	(estimate_numbers_of_iterations_loop): ... instead of here.
	Do not forcefully reset a recorded upper bound.
	* tree-vect-loop-manip.c (vect_do_peeling_for_alignment):
	Record the maximum number of loop iterations of the
	prologue loop.

From-SVN: r186566

/cp
2012-04-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/52422
	* cp-tree.h (build_addr_func, decay_conversion,
	get_member_function_from_ptrfunc,
	build_m_component_ref, convert_member_func_to_ptr):
	Add tsubst_flags_t parameter.
	* typeck.c (cp_default_conversion): Add.
	(decay_conversion, default_conversion,
	get_member_function_from_ptrfunc, convert_member_func_to_ptr):
	Add tsubst_flags_t parameter and use it throughout.
	(cp_build_indirect_ref, cp_build_array_ref,
	cp_build_function_call_vec, convert_arguments, build_x_binary_op,
	cp_build_binary_op, cp_build_unary_op, build_reinterpret_cast_1,
	build_const_cast_1, expand_ptrmemfunc_cst,
	convert_for_initialization): Adjust.
	* init.c (build_vec_init): Adjust.
	* decl.c (grok_reference_init, get_atexit_node): Likewise.
	* rtti.c (build_dynamic_cast_1, tinfo_base_init): Likewise.
	* except.c (build_throw): Likewise.
	* typeck2.c (build_x_arrow): Likewise.
	(build_m_component_ref): Add tsubst_flags_t parameter and
	use it throughout.
	* pt.c (convert_nontype_argument): Adjust.
	* semantics.c (finish_asm_stmt, maybe_add_lambda_conv_op): Likewise.
	* decl2.c (build_offset_ref_call_from_tree): Likewise.
	* call.c (build_addr_func): Add tsubst_flags_t parameter and
	use it throughout.
	(build_call_a, build_conditional_expr_1, build_new_op_1,
	convert_like_real, convert_arg_to_ellipsis, build_over_call,
	build_special_member_call): Adjust.
	* cvt.c (cp_convert_to_pointer, force_rvalue,
	build_expr_type_conversion): Likewise.

/testsuite
2012-04-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/52422
	* g++.dg/cpp0x/sfinae33.C: New.
	* g++.dg/cpp0x/sfinae34.C: Likewise.

From-SVN: r186565