* lto-partition.c (lto_balanced_map): Fix -fno-toplevel-reorder
	partitioning of variables.

From-SVN: r201065

	* lto-cgraph.c (input_symtab): Do not set cgraph state.
	* lto.c (read_cgraph_and_symbols): Set cgraph state.

From-SVN: r200247

	* cgraph.h (const_value_known_p): Replace by ...
	(ctor_for_folding): .. this one.
	* cgraphunit.c (process_function_and_variable_attributes): Use it.
	* lto-cgraph.c (compute_ltrans_boundary): Use ctor_for_folding.
	* expr.c (expand_expr_real_1): Likewise.
	(string_constant): Likewise.
	* tree-ssa-loop-ivcanon.c (constant_after_peeling): Likewise.
	* ipa.c (process_references): Likewise.
	(symtab_remove_unreachable_nodes): Likewise.
	* ipa-inline-analysis.c (param_change_prob): Likewise.
	* gimple-fold.c (canonicalize_constructor_val): Likewise.
	(get_base_constructor): Likwise.
	* varpool.c (varpool_remove_node): Likewise.
	(varpool_remove_initializer): LIkewise.
	(dump_varpool_node): LIkwise.
	(const_value_known_p): Rewrite to ...
	(ctor_for_folding): ... this one.

	* lto-partition.c (add_references_to_partition): Use
	ctor_for_folding.

	* gcc.dg/tree-ssa/attr-alias-2.c: New testcase.

From-SVN: r200211

2013-06-18  Richard Biener  <rguenther@suse.de>

	* tree-streamer.h (streamer_tree_cache_create): Adjust prototype.
	* tree-streamer.c (streamer_tree_cache_create): Make maintaining
	the map from cache entry to cache index optional.
	(streamer_tree_cache_replace_tree): Adjust accordingly.
	(streamer_tree_cache_append): Likewise.
	(streamer_tree_cache_delete): Likewise.
	* lto-streamer-in.c (lto_data_in_create): Do not maintain the
	streamer cache map from cache entry to cache index.
	* lto-streamer-out.c (create_output_block): Adjust.

	lto/
	* lto.c (lto_register_var_decl_in_symtab): Pass in cache index
	and use it.
	(lto_register_function_decl_in_symtab): Likewise.
	(cmp_tree): New function.
	(unify_scc): Instead of using the streamer cache map from entry
	to cache index match up the two maps we have by sorting them.
	Adjust calls to lto_register_var_decl_in_symtab and
	lto_register_function_decl_in_symtab.

From-SVN: r200168

2013-06-17  Richard Biener  <rguenther@suse.de>

	* lto-streamer.h (enum LTO_tags): Add LTO_tree_scc.
	(lto_input_scc): Declare.
	(lto_input_tree_1): Likewise.
	(struct lto_stats_d): Add num_tree_bodies_output and
	num_pickle_refs_output.
	* lto-streamer-in.c (lto_read_body): Use streamer_tree_cache_get_tree.
	(lto_read_tree_1): Split out from ...
	(lto_read_tree): ... this.
	(lto_input_scc): New function.
	(lto_input_tree_1): Split out from ...
	(lto_input_tree): ... this.  Handle LTO_tree_scc.
	(lto_data_in_create): Create the streamer cache without hashes.
	* lto-streamer-out.c (create_output_block): Create the streamer
	cache with hashes when not doing WPA.
	(lto_write_tree_1): Split out from ...
	(lto_write_tree): ... this.
	(get_symbol_initial_value): New function.
	(lto_output_tree_1): Split out from ...
	(lto_output_tree): ... this.  Write trees as series of SCCs
	using a DFS walk via DFS_write_tree.
	(struct sccs, struct scc_entry): New types.
	(next_dfs_num, sccstack, sccstate, sccstate_obstack): New globals.
	(DFS_write_tree_body): New function.
	(DFS_write_tree): Likewise.
	(hash_tree): Likewise.
	(scc_entry_compare): Likewise.
	(hash_scc): Likewise.
	(tree_is_indexable): DEBUG_EXPR_DECLs are local entities.
	* tree-streamer-in.c (lto_input_ts_list_tree_pointers): Stream
	TREE_CHAIN as regular reference.
	(streamer_read_integer_cst): Remove.
	(streamer_get_pickled_tree): Adjust.
	* tree-streamer-out.c (streamer_write_chain): Disable streaming
	of DECL_EXTERNALs in BLOCK_VARS for now.
	(write_ts_list_tree_pointers): Stream TREE_CHAIN as regular
	reference.
	* tree-streamer.c (streamer_tree_cache_add_to_node_array):
	Add hash value argument and record that if hashes are recorded
	in the cache.
	(streamer_tree_cache_insert_1): Adjust.
	(streamer_tree_cache_insert): Likewise.
	(streamer_tree_cache_insert_at): Rename to ...
	(streamer_tree_cache_replace_tree): ... this and adjust.
	(streamer_tree_cache_append): Adjust.
	(record_common_node): Likewise.
	(streamer_tree_cache_create): Add argument whether to
	record hash values together with trees.
	(streamer_tree_cache_delete): Adjust.
	* tree-streamer.h (struct streamer_tree_cache_d): Add
	vector of hashes.
	(streamer_read_integer_cst): Remove.
	(streamer_tree_cache_insert): Adjust.
	(streamer_tree_cache_append): Likewise.
	(streamer_tree_cache_insert_at): Rename to ...
	(streamer_tree_cache_replace_tree): ... this and adjust.
	(streamer_tree_cache_create): Add argument whether to record hashes.
	(streamer_tree_cache_get): Rename to ...
	(streamer_tree_cache_get_tree): ... this.
	(streamer_tree_cache_get_hash): New function.
	* tree.c (cache_integer_cst): New function.
	* tree.h (cache_integer_cst): Declare.
	(ANON_AGGRNAME_FORMAT, ANON_AGGRNAME_P): Move here from cp/cp-tree.h.
	* lto-symtab.c (lto_varpool_replace_node): Only release
	DECL_INITIAL of non-prevailing decls.
	* varpool.c (varpool_remove_initializer): Do not release
	DECL_INITIAL when we are still in CGRAPH_LTO_STREAMING.

	cp/
	* cp-tree.h (ANON_AGGRNAME_FORMAT, ANON_AGGRNAME_P): Move to tree.h.

	lto/
	* Make-lang.in (lto.o): Add $(DATA_STREAMER_H) dependency.
	* lto.c: Include data-streamer.h.
	(lto_read_in_decl_state): Use streamer_tree_cache_get_tree.
	(gimple_type_leader_entry_s, gimple_type_leader,
	gimple_lookup_type_leader): Remove.
	(gtc_visit): Simplify.
	(gimple_types_compatible_p): Likewise.
	(gimple_register_type_1): Likewise.  Merge into ...
	(gimple_register_type): ... this.  Keep it as legacy for
	statistics purposes for now.
	(fixup_integer_cst): Remove.
	(LTO_FIXUP_TREE, lto_fixup_types, lto_ft_*): Simplify and
	rename to ...
	(MAYBE_REMEMBER_WITH_VARS, maybe_remember_with_vars,
	maybe_remember_with_vars_*): ... these.
	(uniquify_nodes): Remove.
	(lto_fixup_prevailing_type): New function.
	(struct tree_scc, struct tree_scc_hasher): New type and hasher.
	(tree_scc_hash, tree_scc_hash_obstack): New globals.
	(num_merged_types, num_prevailing_types, num_not_merged_types,
	num_not_merged_types_in_same_scc, total_scc_size, num_sccs_read,
	total_scc_size_merged, num_sccs_merged, num_scc_compares,
	num_scc_compare_collisions): New global counters.
	(compare_tree_sccs_1): New function.
	(compare_tree_sccs): Likewise.
	(unify_scc): Likewise.
	(lto_read_decls): Stream in tree SCCs and unify them on the
	way in.  Finalize prevailing SCC tree members.
	(read_cgraph_and_symbols): Do not initialize or free gimple_type_leader.
	Allocate and free tree_scc_hash_obstack and tree_scc_hash, do not bother
	to ggc-collect during merging.
	(print_lto_report_1): Adjust for new merging code.

From-SVN: r200151

	* cgraph.c (verify_edge_corresponds_to_fndecl): Be lax about
	decl has when in streaming stage.
	* lto-symtab.c (lto_symtab_merge_symbols): Likewise.
	* cgraph.h (cgraph_state): Add CGRAPH_LTO_STREAMING.

	* lto.c (read_cgraph_and_symbols): Set cgraph into streaming state.

From-SVN: r200018

	* lto-symtab.c (lto_symtab_merge_symbols): Populate symtab hashtable.
	* cgraph.h (varpool_create_empty_node): Declare.
	* lto-cgraph.c (input_node, input_varpool_node): Forcingly create
	duplicated nodes.
	* symtab.c (symtab_unregister_node): Be lax about missin entries
	in node hash.
	(symtab_get_node): Update comment.
	* varpool.c (varpool_create_empty_node): Break out from ...
	(varpool_node_for_decl): ... here.
	* lto-streamer.h (lto_file_decl_data): Add RESOLUTION_MAP.

	* lto.c (register_resolution): Take lto_file_data argument.
	(lto_register_var_decl_in_symtab,
	lto_register_function_decl_in_symtab): Update.
	(read_cgraph_and_symbols): Update resolution_map handling.

From-SVN: r199990

	* c-family/c-common.c (handle_alias_ifunc_attribute): Do not set
	DECL_EXTERNAL for weakref variables.
	* c-family/c-pragma.c (handle_pragma_weak): Make sure aliases
	are not declared as external.
	* cgraph.c (cgraph_create_function_alias): Set weakref flag.
	* cgraph.h (symtab_node_base): Add weakref flag.
	* cgraphunit.c (cgraph_reset_node): Clear weakref flag.
	(handle_alias_pairs): Set weakref flag, do not set DECL_EXTERNAL.
	(output_weakrefs): Use weakref flag.
	* fold-const.c (simple_operand_p): Handle WEAK.
	* gimple-fold.c (can_refer_decl_in_current_unit_p): Drop weakref.
	* ipa.c (varpool_externally_visible_p): Drop weakref.
	(function_and_variable_visibility): Update comment; fix weakref
	sanity checks; do not clear DECL_WEAK on them.
	* lto-cgraph.c (lto_output_node): update.
	(lto_output_varpool_node): Update.
	(input_overwrite_node): Update.
	(input_node): Update.
	(input_varpool_node): Update.
	* lto-symtab.c (lto_symtab_symbol_p): Do not special case weakrefs.
	(lto_symtab_merge_symbols): Add sanity check.
	(lto_symtab_prevailing_decl): Do not special case weakrefs.
	* passes.c (rest_of_decl_compilation): Set static flag, too.
	* symtab.c (dump_symtab_base): Dump weakref.
	(verify_symtab_base): Sanity check weakrefs.
	(symtab_make_decl_local): Remove duplicated code.
	(symtab_alias_ultimate_target): Simplify.
	* varpool.c (varpool_create_variable_alias): Set weakref flag.

	* lto-partition.c (get_symbol_class): Simplify weakref handling.
	(add_symbol_to_partition_1): Likewise.
	(contained_in_symbol): Likewise.
	(lto_balanced_map): Likewise.
	(rename_statics): Drop weakref.

From-SVN: r199971

tree-streamer.c (streamer_tree_cache_insert_1): Update the index associated with the tree we are supposed to replace.

2013-06-05  Richard Biener  <rguenther@suse.de>

	* tree-streamer.c (streamer_tree_cache_insert_1): Update the
	index associated with the tree we are supposed to replace.
	* tree-streamer-out.c (pack_ts_base_value_fields): Output
	TREE_ASM_WRITTEN as zero for everything but SSA names.

	lto/
	* lto.c (num_merged_types): New global variable.
	(uniquify_nodes): Increase num_merged_types when merging a type.
	(print_lto_report_1): Output the number of merged types.

From-SVN: r199683

	* lto-symtab.c (lto_symtab_merge_cgraph_nodes_1): Rename to ...
	(lto_symtab_merge_symbols_1): ... this one.
	(lto_symtab_merge_cgraph_nodes): Rename to ...
	(lto_symtab_merge_symbols): ... this one; simplify.
	* cgraph.c (same_body_aliases_done): Rename to ...
	(cpp_implicit_aliases_done): ... this one.
	(cgraph_create_function_alias): Update.
	(cgraph_same_body_alias): Update.
	(dump_cgraph_node): Remove alias dumping; simplify
	thunk dumping.
	(verify_edge_corresponds_to_fndecl): Simplify.
	* cgraph.h (symtab_node_base): Add cpp_implicit_alias,
	alias_target.
	(cgraph_node): Remove same_body_alias.
	(varpool_node): Remove alias_of and extra_name_alias.
	(same_body_aliases_done): Rename to ..
	(cpp_implicit_aliases_done): ... this one.
	(symtab_alias_ultimate_target): Add default parameter.
	(symtab_resolve_alias): New function.
	(fixup_same_cpp_alias_visibility): Declare.
	(cgraph_function_node): Add default parameter.
	(cgraph_node_asm_name): Likewise.
	(cgraph_function_or_thunk_node): Add default parameter; do
	not ICE when it is NULL.
	(varpool_variable_node): Likewise.
	* tree-emutls.c (create_emultls_var): Update.
	(ipa_lower_emutls): Update.
	* cgraphunit.c (cgraph_decide_is_function_needed): Update.
	(cgraph_reset_node): Reset alias info.
	(cgraph_finalize_function): Update.
	(fixup_same_cpp_alias_visibility): Move to symtab.c.
	(analyze_function): Simplify.
	(cgraph_process_same_body_aliases): Simplify.
	(analyze_functions): Fixup same body aliases.
	(handle_alias_pairs): Simplify.
	(assemble_thunk): Update.
	(assemble_thunks_and_aliases): Update.
	(output_weakrefs): Rewrite.
	* lto-cgraph.c (lto_output_node): Rewrite alias handling.
	(lto_output_varpool_node): Likewise.
	(compute_ltrans_boundary): Remve assert.
	(get_alias_symbol): New functoin.
	(input_node): Rewrite alias handling.
	(input_varpool_node): Likewise.
	* ipa-pure-const.c (propagate_pure_const): Fix formating.
	* ipa.c (process_references): Handle weakrefs correctly.
	(symtab_remove_unreachable_nodes): Likewise.
	* trans-mem.c (get_cg_data): Update.
	(ipa_tm_create_version_alias): Update.
	(ipa_tm_execute): Update.
	* symtab.c (dump_symtab_base): Dump aliases.
	(verify_symtab_base): Verify aliases.
	(symtab_node_availability): New function.
	(symtab_alias_ultimate_target): Simplify.
	(fixup_same_cpp_alias_visibility): Move here from cgraphunit.c;
	handle all the fixup cases.
	(symtab_resolve_alias): New function.
	* passes.c (ipa_write_summaries): Handle weakrefs.
	* varpool.c (varpool_analyze_node): Simplify.
	(assemble_aliases): Update.
	(varpool_create_variable_alias): Simplify.
	(varpool_extra_name_alias): Simplify.
	* lto-streamer.h (lto_symtab_merge_cgraph_nodes): Rename to...
	(lto_symtab_merge_symbols): ... this one.

	* decl2.c (cp_write_global_declarations): Replace same_body_alias
	by symbol.cpp_implicit_alias.

	* lto.c (read_cgraph_and_symbols): Simplify dumping; Replace
	lto_symtab_merge_cgraph_nodes by lto_symtab_merge_symbols.
	(do_whole_program_analysis): Update dumping.

From-SVN: r199577

	* cgraph.h (symtab_node_base): Add definition, alias and analyzed
	flags; reorder rest of fields in more consistent way.
	(varpool_node): Remove analyzed, finalized and alias.
	(cgraph_ndoe): Likewise.
	(symtab_alias_ultimate_target): New function.
	(cgraph_function_node): Move offline.
	(cgraph_reset_node): Declare.
	(cgraph_comdat_can_be_unshared_p): Remove.
	(varpool_remove_initializer): Declare.
	(varpool_first_defined_variable, varpool_next_defined_variable
	cgraph_first_defined_function, cgraph_next_defined_function): Update.
	(cgraph_function_with_gimple_body_p): Update.
	(varpool_all_refs_explicit_p): Update.
	(symtab_alias_target): New function.
	(cgraph_alias_aliased_node, varpool_alias_aliased_node): Rename to ...
	(cgraph_alias_target, varpool_alias_target): .. this one; simplify.
	(cgraph_function_or_thunk_node): Simplify using symtab_alias_ultimate_target.
	(varpool_variable_node): Likewise.
	* cgraph.c (cgraph_create_function_alias): Update.
	(cgraph_add_thunk): Update.
	(cgraph_remove_node): Update.
	(dump_cgraph_node): Do not dump removed flags.
	(cgraph_function_body_availability): Update.
	(cgraph_propagate_frequency): Update.
	(verify_cgraph_node): Check sanity of local flag.
	(cgraph_function_node): Move here from cgraph.h; revamp for
	cgraph_function_or_thunk_node.
	* lto-symtab.c (lto_varpool_replace_node): Update.
	(lto_symtab_resolve_can_prevail_p): Update.
	(lto_symtab_merge_cgraph_nodes): Update.
	* ipa-cp.c (determine_versionability, initialize_node_lattices,
	propagate_constants_accross_call, devirtualization_time_bonus,
	ipcp_propagate_stage): Update.
	* tree-emutls.c (create_emultls_var, ipa_lower_emutls): Update.
	* ipa-inline-transform.c (clone_inlined_nodes, preserve_function_body_p): Update.
	* ipa-reference.c (propagate): Update.
	(write_node_summary_p): Update.
	* toplev.c (wrapup_global_declaration_2): Update.
	* cgraphunit.c (cgraph_analyze_function): Rename to ...
	(analyze_function) ... this one.
	(cgraph_process_new_functions): Update.
	(cgraph_reset_node): Export.
	(cgraph_finalize_function): Update.
	(cgraph_add_new_function): Update.
	(process_function_and_variable_attributes): Update.
	(varpool_finalize_decl): Update.
	(symbol_finalized): Remove.
	(symbol_finalized_and_needed): Rename to ...
	(symbol_defined_and_needed): ... update.
	(cgraph_analyze_functions): Update.
	(handle_alias_pairs): Update.
	(mark_functions_to_output): Update.
	(assemble_thunk): Update.
	(output_in_order): Update.
	(output_weakrefs): Update.
	(finalize_compilation_unit): Update.
	* lto-cgraph.c (reachable_from_other_partition_p, lto_output_node,
	lto_output_varpool_node, compute_ltrans_boundary, input_overwrite_node,
	input_node, input_varpool_node): Update.
	* dbxout.c (dbxout_expand_expr): Update.
	* cgraphclones.c (cgraph_clone_node): Update.
	(cgraph_copy_node_for_versioning): Update.
	(cgraph_materialize_clone): Update.
	(cgraph_materialize_all_clones): Update.
	* ipa-pure-const.c (analyze_function, pure_const_write_summary,
	propagate_pure_const, propagate_nothrow): Update.
	* lto-streamer-out.c (lto_output, write_symbol): Update.
	* ipa-utils.c (ipa_reverse_postorder): Update.
	* ipa-inline.c (can_inline_edge_p): Update.
	(update_caller_keys, ipa_inline): Update.
	* dwarf2out.c (reference_to_unused,
	premark_types_used_by_global_vars_helper): Update.
	* tree-eh.c (tree_could_trap_p): Update.
	* ipa-split.c (consider_split, execute_split_functions): Update.
	* ipa.c (cgraph_non_local_node_p_1, cgraph_local_node_p,
	 has_addr_references_p): Update;
	move ahead in file for better readability.
	(process_references): Simplify.
	(symtab_remove_unreachable_nodes): Update; cleanup way function/var
	bodies are removed.
	(cgraph_comdat_can_be_unshared_p): Make static.
	(cgraph_externally_visible_p): Update.
	(varpool_externally_visible_p): Update.
	(function_and_variable_visibility): Update.
	* trans-mem.c (get_cg_data, ipa_tm_mayenterirr_function,
	ipa_tm_mark_force_output_node): Update.
	* ipa-inline-analysis.c (dump_inline_summary, initialize_inline_failed,
	estimate_edge_devirt_benefit, inline_generate_summary,
	inline_write_summary): Update.
	* gimple-fold.c (can_refer_decl_in_current_unit_p): Update.
	* ipa-prop.c (ipa_compute_jump_functions): Update.
	(ipa_print_node_params, ipa_prop_read_section, ipa_update_after_lto_read,
	read_replacements_section): Update.
	* varasm.c (mark_decl_referenced): Update.
	(assemble_alias, dump_tm_clone_pairs): Update.
	* tree-inline.c (copy_bb): Update.
	(estimate_num_insns, optimize_inline_calls, tree_function_versioning):
	Update.
	* symtab.c (dump_symtab_base): Print new flags.
	(verify_symtab_base): Verify new flags.
	(symtab_alias_ultimate_target): New function.
	* tree-ssa-structalias.c (get_constraint_for_ssa_var,
	create_variable_info_for, associate_varinfo_to_alias, ipa_pta_execute):
	Update.
	* passes.c (ipa_write_summaries, ipa_write_optimization_summaries): Update.
	* i386.c (ix86_get_function_versions_dispatcher,
	ix86_generate_version_dispatcher_body): Update.
	(fold_builtin_cpu): Use varpool_add_new_variable.
	* varpool.c (varpool_remove_initializer): Break out from ...
	(varpool_remove_node): ... this one.
	(dump_varpool_node, varpool_node_for_asm,
	cgraph_variable_initializer_availability, varpool_analyze_node,
	varpool_assemble_decl, varpool_remove_unreferenced_decls,
	varpool_finalize_named_section_flags, varpool_create_variable_alias): Update

	* decl.c (java_mark_decl_local): Update for new symtab flags.

	* tree.c (cp_fix_function_decl_p): Update for new symtab flags.
	* decl2.c )var_finalized_p, cp_write_global_declarations): Likewise.

	* lto.c (has_analyzed_clone_p, lto_materialize_function): Update for new symtab
	flags.
	* lto-partition.c (get_symbol_class, lto_balanced_map): Likewise.

From-SVN: r199422

	* lto-partition.c (privatize_symbol_name): Return true when
	privatizing happened.
	(rename_statics): Do not go into infinite loop when privatizing
	is not needed.

From-SVN: r199040

	* Makefile.in (LLINKER): New variable.
	(mostlyclean): Remove link mutex.
	* configure.ac: Handle --enable-link-mutex.
	* lock-and-run.sh: New script.

From-SVN: r198977

2013-05-15  Martin Jambor  <mjambor@suse.cz>

	* ipa-prop.c (ipa_print_node_jump_functions): Print symbol order in
	header, print symbol order instead of node uid, print more information
	about indirect edge targets.
	(ipa_make_edge_direct_to_target): Print symbol order instead of node
	uids.
	(ipa_make_edge_direct_to_target): Likewise.
	(remove_described_reference): Likewise.
	(propagate_controlled_uses): Likewise.
	(ipa_print_node_params): Also print symbol order.
	(ipcp_transform_function): Print symbol order instead of node uids.
	* cgraph.c (cgraph_redirect_edge_call_stmt_to_callee): Likewise.
	(cgraph_get_create_real_symbol_node): Likewise.
	* ipa-cp.c (print_lattice): Likewise.
	(print_all_lattices): Likewise.
	(determine_versionability): Likewise.
	(initialize_node_lattices): Likewise.
	(estimate_local_effects): Likewise.
	(update_profiling_info): Likewise.
	(create_specialized_node): Likewise.
	(perhaps_add_new_callers): Likewise.
	(decide_about_value): Likewise.
	(decide_whether_version_node): Likewise.
	(identify_dead_nodes): Likewise.
	* ipa-inline-analysis.c (dump_inline_edge_summary): Likewise.
	(dump_inline_summary): Likewise.
	(estimate_node_size_and_time): Likewise.
	(inline_analyze_function): Likewise.
	* ipa-inline.c (report_inline_failed_reason): Likewise.
	(want_early_inline_function_p): Likewise.
	(edge_badness): Likewise.
	(update_edge_key): Likewise.
	(inline_small_functions): Likewise.  Add dumping of order to two other
	dumps.
	* ipa-pure-const.c (pure_const_read_summary): Print symbol order
	instead of node uids.
	(propagate_pure_const): Likewise.
	(propagate_pure_const): Likewise.
	* ipa-utils.c (dump_cgraph_node_set): Likewise.
	* lto-cgraph.c (input_node): Explicitly specify we dump uid.
	* lto-symtab.c (lto_cgraph_replace_node): Print symbol order instead
	of node uids.
	* tree-pretty-print.c (dump_function_header): Likewise.
	* tree-sra.c (convert_callers_for_node): Dump in traditional format.
	Print symbol order instead of node uids.

lto/
	* lto-partition.c (lto_balanced_map): Print symbol order instead
	of node uids.

From-SVN: r198925

	PR lto/57038
	PR lto/47375
	* lto-symtab.c (lto_symtab_symbol_p): Add external symbol; weakrefs are
	not external.
	(lto_symtab_merge_decls): Fix thinko when dealing with non-lto_symtab decls.
	(lto_symtab_merge_cgraph_nodes): Use lto_symtab_symbol_p.
	(lto_symtab_prevailing_decl): Get int sync with lto_symtab_symbol_p.
	* varpool.c (dump_varpool_node): Dump more flags.

	* lto-partition.c (get_symbol_class): Fix weakrefs.
	(lto_balanced_map): Fix weakrefs.
	(privatize_symbol_name): Remove unnecesary label.
	(rename_statics): Handle weakrefs as statics.

	* gcc.dg/lto/attr-weakref-1_0.c: New testcase.
	* gcc.dg/lto/attr-weakref-1_1.c: New testcase.
	* gcc.dg/lto/attr-weakref-1_2.c: New testcase.

From-SVN: r198917

	Richard Biener  <rguenther@suse.de>

	PR lto/54095
	* symtab.c (symtab_make_decl_local): Do not add private names.

	* lto.c (lto_register_var_decl_in_symtab): Don't do renaming.
	(lto_register_var_decl_in_symtab): Likewise.
	(lto_main): Promote statics.
	* lto-partition.c (privatize_symbol_name): New function.
	(promote_symbol): Use it.
	(may_need_named_section_p): New predicate.
	(rename_statics): New functions.
	(lto_promote_cross_file_statics): Simplify; do renaming.
	(lto_promote_statics_nonwpa): New function.
	* lto-partition.h (lto_promote_statics_nonwpa): New function.

Co-Authored-By: Richard Biener <rguenther@suse.de>

From-SVN: r198741

Some of the hash tables in lto-report are misnamed in the report.
Fix this up.

gcc/:

2013-04-22  Andi Kleen  <ak@linux.intel.com>

	* lto/lto.c (print_lto_report_1): Fix LTO report names.

From-SVN: r198174

The LTO report is currently printed when the type merging hash tables
are already destroyed, which makes them always show up as empty.
Print it earlier. Right now it's printed twice.

gcc/:

2013-04-22  Andi Kleen  <ak@linux.intel.com>

	* lto/lto.c (print_lto_report_1): Declare early.
	(read_cgraph_and_symbols): Call print_lto_report_1 early.

From-SVN: r198173

-flto-report is useful, but it prints for every LTRANS pass and
is very noisy and the main problem is often in WPA only.

Add a new -flto-report-wpa option that is only printed for WPA.

gcc/:

2013-04-22  Andi Kleen  <ak@linux.intel.com>

	* common.opt (-flto-report-wpa): Add.
	* doc/invoke.texi (-flto-report-wpa): Add.
	* lto/lto.c (do_whole_program_analysis): Check for lto-report-wpa.
	(lto_main): dito.

From-SVN: r198172

2013-02-08  Richard Biener  <rguenther@suse.de>

	PR lto/56231
	* lto-streamer.h (struct data_in): Remove current_file, current_line
	and current_col members.
	* lto-streamer-out.c (lto_output_location): Stream changed bits
	en-block for efficiency.
	* lto-streamer-in.c (clear_line_info): Remove.
	(lto_input_location): Cache current file, line and column
	globally via local statics.  Read changed bits en-block.
	(input_function): Do not call clear_line_info.
	(lto_read_body): Likewise.
	(lto_input_toplevel_asms): Likewise.

	lto/
	* lto-lang.c (lto_init): Do not enter a dummy file.

From-SVN: r195884

	PR bootstrap/56227
	* ggc-page.c (ggc_print_statistics): Use HOST_LONG_LONG_FORMAT
	instead of "ll".
	* config/i386/i386.c (ix86_print_operand): Ditto.

lto/ChangeLog:

	PR bootstrap/56227
	* lto.c (lto_resolution_ready): Use %wx instead of
	HOST_WIDE_INT_PRINT_HEX_PURE in the argument to internal_error.

From-SVN: r195860

2013-02-04  Richard Guenther  <rguenther@suse.de>

	PR lto/56168
	* lto-symtab.c (lto_symtab_merge_decls_1): Make non-builtin
	node prevail as last resort.
	(lto_symtab_merge_decls): Remove guard on LTRANS here.
	(lto_symtab_prevailing_decl): Builtins are their own prevailing
	decl.

	lto/
	* lto.c (read_cgraph_and_symbols): Do not call lto_symtab_merge_decls
	or lto_fixup_decls at LTRANS time.

	* gcc.dg/lto/pr56168_0.c: New testcase.
	* gcc.dg/lto/pr56168_1.c: Likewise.

From-SVN: r195709

From-SVN: r195098

	PR lto/45375
	* ipa-inline.c (ipa_inline): Remove extern inlines and virtual functions.
	* cgraphclones.c (cgraph_clone_node): Cpoy also LTO file data.
	* lto.c (do_whole_program_analysis): Remove unreachable nodes after IPA.

From-SVN: r195066

From-SVN: r194903

From-SVN: r194861

	PR lto/55466
	* lto-symtab.c (lto_symtab_merge_decls_1): Don't record the
	prevailing variable.
	* lto.c (lto_register_var_decl_in_symtab): Don't record static
	variables.
	(lto_main): Record the global variables if WPA isn't enabled.

From-SVN: r194359

This patch implements Jakub's idea of adding an empty struct with
a typecast operator that returns nil vectors.  This is useful to
shorten all the initializers when declaring vec instances or passing
nil vectors as function arguments.

2012-11-20  Diego Novillo  <dnovillo@google.com>
	    Jakub Jelinek  <jakub@redhat.com>

ChangeLog
	* vec.h (struct vnull): Declare.
	(vNULL): Declare.
	* vec.c (vNULL): Define.
	* bb-reorder.c: Replace all vec<T, A>() initializers with vNULL.
	* cfgexpand.c: Likewise.
	* cfgloop.c: Likewise.
	* cfgloopanal.c: Likewise.
	* cfgloopmanip.c: Likewise.
	* cgraph.c: Likewise.
	* config/c6x/c6x.c: Likewise.
	* config/i386/i386.c: Likewise.
	* df-core.c: Likewise.
	* dominance.c: Likewise.
	* dwarf2out.c: Likewise.
	* except.c: Likewise.
	* function.c: Likewise.
	* gcse.c: Likewise.
	* genautomata.c: Likewise.
	* graphds.c: Likewise.
	* graphite-scop-detection.c: Likewise.
	* graphite.c: Likewise.
	* haifa-sched.c: Likewise.
	* ifcvt.c: Likewise.
	* ipa-cp.c: Likewise.
	* ipa-inline-analysis.c: Likewise.
	* ipa-inline-transform.c: Likewise.
	* ipa-inline.c: Likewise.
	* ipa-prop.c: Likewise.
	* ipa-split.c: Likewise.
	* ipa-utils.c: Likewise.
	* ira-build.c: Likewise.
	* lto-cgraph.c: Likewise.
	* lto-streamer-in.c: Likewise.
	* lto-symtab.c: Likewise.
	* opts-global.c: Likewise.
	* passes.c: Likewise.
	* ree.c: Likewise.
	* sched-deps.c: Likewise.
	* sel-sched-ir.c: Likewise.
	* sel-sched-ir.h: Likewise.
	* sel-sched.c: Likewise.
	* stor-layout.c: Likewise.
	* trans-mem.c: Likewise.
	* tree-call-cdce.c: Likewise.
	* tree-cfg.c: Likewise.
	* tree-data-ref.c: Likewise.
	* tree-diagnostic.c: Likewise.
	* tree-eh.c: Likewise.
	* tree-loop-distribution.c: Likewise.
	* tree-predcom.c: Likewise.
	* tree-ssa-loop-im.c: Likewise.
	* tree-ssa-loop-ivcanon.c: Likewise.
	* tree-ssa-loop-manip.c: Likewise.
	* tree-ssa-loop-niter.c: Likewise.
	* tree-ssa-loop-prefetch.c: Likewise.
	* tree-ssa-math-opts.c: Likewise.
	* tree-ssa-phiopt.c: Likewise.
	* tree-ssa-pre.c: Likewise.
	* tree-ssa-propagate.c: Likewise.
	* tree-ssa-reassoc.c: Likewise.
	* tree-ssa-sccvn.c: Likewise.
	* tree-ssa-structalias.c: Likewise.
	* tree-ssa-threadedge.c: Likewise.
	* tree-ssa-uninit.c: Likewise.
	* tree-stdarg.c: Likewise.
	* tree-switch-conversion.c: Likewise.
	* tree-vect-data-refs.c: Likewise.
	* tree-vect-loop.c: Likewise.
	* tree-vect-slp.c: Likewise.
	* tree-vect-stmts.c: Likewise.
	* value-prof.c: Likewise.
	* varasm.c: Likewise.

ada/ChangeLog
	* gcc-interface/decl.c: Replace all vec<T,A>()
	initializers with vNULL.

cp/ChangeLog
	* name-lookup.c: Replace all vec<T, A>() initializers
	with vNULL.
	* semantics.c: Likewise.

fortran/ChangeLog
	* trans-openmp.c: Replace all vec<T, A>() initializers
	with vNULL.

lto/ChangeLog
	* lto.c: Replace all vec<T, A>() initializers with vNULL.

objc/ChangeLog
	* objc-act.c: Replace all vec<T, A>() initializers with vNULL.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r193677

This patch rewrites the old VEC macro-based interface into a new one based on the template class 'vec'.

This patch rewrites the old VEC macro-based interface into a new one
based on the template class 'vec'.  The user-visible changes are
described in http://gcc.gnu.org/wiki/cxx-conversion/cxx-vec.

I have tested the patch pretty extensively:

- Regular bootstraps on x86_64, ppc, ia64, sparc and hppa.
- Bootstraps with --enable-checking=release
- Bootstraps with --enable-checking=gc,gcac
- Basic builds on all targets (using contrib/config-list.mk).

We no longer access the vectors via VEC_* macros.  The pattern is
"VEC_operation (T, A, V, args)" becomes "V.operation (args)".

The only thing I could not do is create proper ctors and dtors for the
vec class.  Since these vectors are stored in unions, we
have to keep them as PODs (C++03 does not allow non-PODs in unions).

This means that creation and destruction must be explicit.  There is a
new method vec<type, allocation, layout>::create() and another vec<type,
allocation, layout>::destroy() to allocate the internal vector.

For vectors that must be pointers, there is a family of free functions
that implement the operations that need to tolerate NULL vectors.
These functions all start with the prefix 'vec_safe_'.  See the wiki
page for details.

The gengtype change removes the special handling for VEC() that used
to exist in gengtype. Additionally, it allows gengtype to recognize
templates of more than one argument and introduces the concept of an
undefined type (useful for template arguments that may or may not be
types).

When a TYPE_UNDEFINED is reached, gengtype will ignore it if it
happens inside a type marked with GTY((user)).  Otherwise, it will
emit an error.

Finally, gengtype rejects root types marked GTY((user)) that are not
first class pointers.

2012-11-16  Diego Novillo  <dnovillo@google.com>

	VEC API overhaul (http://gcc.gnu.org/wiki/cxx-conversion/cxx-vec)

	* vec.c (register_overhead): Convert it into
	member function of vec_prefix.
	(release_overhead): Likewise.
	(calculate_allocation): Likewise.
	(vec_heap_free): Remove.
	(vec_gc_o_reserve_1): Remove.
	(vec_heap_o_reserve_1): Remove.
	(vec_stack_o_reserve_1): Remove.
	(vec_stack_o_reserve_exact): Remove.
	(register_stack_vec): New.
	(stack_vec_register_index): New.
	(unregister_stack_vec): New.
	(vec_assert_fail): Remove.
	* vec.h: Conditionally include ggc.h.  Document conditional
	hackery.
	Update top-level documentation.
	(ALONE_VEC_CHECK_INFO): Remove.
	(VEC_CHECK_INFO): Remove.
	(ALONE_VEC_CHECK_DECL): Remove.
	(VEC_CHECK_DECL): Remove.
	(ALONE_VEC_CHECK_PASS): Remove.
	(VEC_CHECK_PASS): Remove.
	(VEC_ASSERT): Remove.
	(vec_prefix): Add friends va_gc, va_gc_atomic, va_heap and
	va_stack.
	Mark fields alloc_ and num_ as protected.
	(struct vec_t): Remove.  Remove all function members.
	(struct vl_embed): Declare.
	(struct vl_ptr): Declare.
	(free): Remove.
	(reserve_exact): Remove.
	(reserve): Remove.
	(safe_splice): Remove.
	(safe_push): Remove.
	(safe_grow): Remove.
	(safe_grow_cleared): Remove.
	(safe_insert): Remove.
	(DEF_VEC_I): Remove.
	(DEF_VEC_ALLOC_I): Remove.
	(DEF_VEC_P): Remove.
	(DEF_VEC_ALLOC_P): Remove.
	(DEF_VEC_O): Remove.
	(DEF_VEC_ALLOC_O): Remove.
	(DEF_VEC_ALLOC_P_STACK): Remove.
	(DEF_VEC_ALLOC_O_STACK): Remove.
	(DEF_VEC_ALLOC_I_STACK): Remove.
	(DEF_VEC_A): Remove.
	(DEF_VEC_ALLOC_A): Remove.
	(vec_stack_p_reserve_exact_1): Remove.
	(vec_stack_o_reserve): Remove.
	(vec_stack_o_reserve_exact): Remove.
	(VEC_length): Remove.
	(VEC_empty): Remove.
	(VEC_address): Remove.
	(vec_address): Remove.
	(VEC_last): Remove.
	(VEC_index): Remove.
	(VEC_iterate): Remove.
	(VEC_embedded_size): Remove.
	(VEC_embedded_init): Remove.
	(VEC_free): Remove.
	(VEC_copy): Remove.
	(VEC_space): Remove.
	(VEC_reserve): Remove.
	(VEC_reserve_exact): Remove.
	(VEC_splice): Remove.
	(VEC_safe_splice): Remove.
	(VEC_quick_push): Remove.
	(VEC_safe_push): Remove.
	(VEC_pop): Remove.
	(VEC_truncate): Remove.
	(VEC_safe_grow): Remove.
	(VEC_replace): Remove.
	(VEC_quick_insert): Remove.
	(VEC_safe_insert): Remove.
	(VEC_ordered_remove): Remove.
	(VEC_unordered_remove): Remove.
	(VEC_block_remove): Remove.
	(VEC_lower_bound): Remove.
	(VEC_alloc): Remove.
	(VEC_qsort): Remove.

	(va_heap): Declare.
	(va_heap::default_layout): New typedef to vl_ptr.
	(va_heap::reserve): New.
	(va_heap::release): New.
	(va_gc): Declare.
	(va_gc::default_layout): New typedef to vl_embed.
	(va_gc::reserve): New.
	(va_gc::release): New.
	(va_gc_atomic): Declare.  Inherit from va_gc.
	(va_stack): Declare.
	(va_stack::default_layout): New typedef to vl_ptr.
	(va_stack::alloc): New.
	(va_stack::reserve): New.
	(va_stack::release): New.
	(register_stack_vec): Declare.
	(stack_vec_register_index): Declare.
	(unregister_stack_vec): Declare.

	(vec<T, A = va_heap, L = typename A::default_layout>): Declare
	empty vec template.
	(vec<T, A, vl_embed>): Partial specialization for embedded
	layout.
	(vec<T, A, vl_embed>::allocated): New.
	(vec<T, A, vl_embed>::length): New.
	(vec<T, A, vl_embed>::is_empty): New.
	(vec<T, A, vl_embed>::address): New.
	(vec<T, A, vl_embed>::operator[]): New.
	(vec<T, A, vl_embed>::last New.
	(vec<T, A, vl_embed>::space): New.
	(vec<T, A, vl_embed>::iterate): New.
	(vec<T, A, vl_embed>::iterate): New.
	(vec<T, A, vl_embed>::copy): New.
	(vec<T, A, vl_embed>::splice): New.
	(vec<T, A, vl_embed>::quick_push New.
	(vec<T, A, vl_embed>::pop New.
	(vec<T, A, vl_embed>::truncate): New.
	(vec<T, A, vl_embed>::quick_insert): New.
	(vec<T, A, vl_embed>::ordered_remove): New.
	(vec<T, A, vl_embed>::unordered_remove): New.
	(vec<T, A, vl_embed>::block_remove): New.
	(vec<T, A, vl_embed>::qsort): New.
	(vec<T, A, vl_embed>::lower_bound): New.
	(vec<T, A, vl_embed>::embedded_size): New.
	(vec<T, A, vl_embed>::embedded_init): New.
	(vec<T, A, vl_embed>::quick_grow): New.
	(vec<T, A, vl_embed>::quick_grow_cleared): New.
	(vec_safe_space): New.
	(vec_safe_length): New.
	(vec_safe_address): New.
	(vec_safe_is_empty): New.
	(vec_safe_reserve): New.
	(vec_safe_reserve_exact): New.
	(vec_alloc): New.
	(vec_free): New.
	(vec_safe_grow): New.
	(vec_safe_grow_cleared): New.
	(vec_safe_iterate): New.
	(vec_safe_push): New.
	(vec_safe_insert): New.
	(vec_safe_truncate): New.
	(vec_safe_copy): New.
	(vec_safe_splice): New.

	(vec<T, A, vl_ptr>): New partial specialization for the space
	efficient layout.
	(vec<T, A, vl_ptr>::exists): New.
	(vec<T, A, vl_ptr>::is_empty): New.
	(vec<T, A, vl_ptr>::length): New.
	(vec<T, A, vl_ptr>::address): New.
	(vec<T, A, vl_ptr>::operator[]): New.
	(vec<T, A, vl_ptr>::operator!=): New.
	(vec<T, A, vl_ptr>::operator==): New.
	(vec<T, A, vl_ptr>::last): New.
	(vec<T, A, vl_ptr>::space): New.
	(vec<T, A, vl_ptr>::iterate): New.
	(vec<T, A, vl_ptr>::copy): New.
	(vec<T, A, vl_ptr>::reserve): New.
	(vec<T, A, vl_ptr>::reserve_exact): New.
	(vec<T, A, vl_ptr>::splice): New.
	(vec<T, A, vl_ptr>::safe_splice): New.
	(vec<T, A, vl_ptr>::quick_push): New.
	(vec<T, A, vl_ptr>::safe_push): New.
	(vec<T, A, vl_ptr>::pop): New.
	(vec<T, A, vl_ptr>::truncate): New.
	(vec<T, A, vl_ptr>::safe_grow): New.
	(vec<T, A, vl_ptr>::safe_grow_cleared): New.
	(vec<T, A, vl_ptr>::quick_grow): New.
	(vec<T, A, vl_ptr>::quick_grow_cleared): New.
	(vec<T, A, vl_ptr>::quick_insert): New.
	(vec<T, A, vl_ptr>::safe_insert): New.
	(vec<T, A, vl_ptr>::ordered_remove): New.
	(vec<T, A, vl_ptr>::unordered_remove): New.
	(vec<T, A, vl_ptr>::block_remove): New.
	(vec<T, A, vl_ptr>::qsort): New.
	(vec<T, A, vl_ptr>::lower_bound): New.
	(vec_stack_alloc): Define.
	(FOR_EACH_VEC_SAFE_ELT): Define.
	* vecir.h: Remove.  Update all users.
	* vecprim.h: Remove.  Update all users.
	Move uchar to coretypes.h.

	* Makefile.in (VEC_H): Add $(GGC_H).
	Remove vecir.h and vecprim.h dependencies everywhere.

2012-11-16  Diego Novillo  <dnovillo@google.com>

	* gengtype-lex.l (VEC): Remove.
	Add characters in the set [\!\>\.-].
	* gengtype-parse.c (token_names): Remove "VEC".
	(require_template_declaration): Remove handling of VEC_TOKEN.
	(type): Likewise.
	Call create_user_defined_type when parsing GTY((user)).
	* gengtype-state.c (type_lineloc): handle TYPE_UNDEFINED.
	(write_state_undefined_type): New.
	(write_state_type): Call write_state_undefined_type for
	TYPE_UNDEFINED.
	(read_state_type): Call read_state_undefined_type for
	TYPE_UNDEFINED.
	* gengtype.c (dbgprint_count_type_at): Handle TYPE_UNDEFINED.
	(create_user_defined_type): Make extern.
	(type_for_name): Factor out of resolve_typedef.
	(create_undefined_type): New
	(resolve_typedef): Call it when we cannot find a previous
	typedef and the type is not a template.
	(find_structure): Accept TYPE_UNDEFINED.
	(set_gc_used_type): Add argument ALLOWED_UNDEFINED_TYPES,
	default to false.
	Emit an error for TYPE_UNDEFINED unless LEVEL is GC_UNUSED or
	ALLOWED_UNDEFINED_TYPES is set.
	Set ALLOWED_UNDEFINED_TYPES to true for TYPE_USER_STRUCT.
	(filter_type_name): Accept templates with more than one
	argument.
	(output_mangled_typename): Handle TYPE_UNDEFINED
	(walk_type): Likewise.
	(write_types_process_field): Likewise.
	(write_func_for_structure): If CHAIN_NEXT is set, ORIG_S
	should not be a user-defined type.
	(write_types_local_user_process_field): Handle TYPE_ARRAY,
	TYPE_NONE and TYPE_UNDEFINED.
	(write_types_local_process_field): Likewise.
	(contains_scalar_p): Return 0 for TYPE_USER_STRUCT.
	(write_root): Reject user-defined types that are not pointers.
	Handle TYPE_NONE, TYPE_UNDEFINED, TYPE_UNION, TYPE_LANG_STRUCT
	and TYPE_PARAM_STRUCT.
	(output_typename): Handle TYPE_NONE, TYPE_UNDEFINED, and
	TYPE_ARRAY.
	(dump_typekind): Handle TYPE_UNDEFINED.
	* gengtype.h (enum typekind): Add TYPE_UNDEFINED.
	(create_user_defined_type): Declare.
	(enum gty_token): Remove VEC_TOKEN.

2012-11-16  Diego Novillo  <dnovillo@google.com>

	Adjust for new vec API (http://gcc.gnu.org/wiki/cxx-conversion/cxx-vec)

	* coretypes.h (uchar): Define.
	* alias.c: Use new vec API in vec.h.
	* asan.c: Likewise.
	* attribs.c: Likewise.
	* basic-block.h: Likewise.
	* bb-reorder.c: Likewise.
	* builtins.c: Likewise.
	* calls.c: Likewise.
	* cfg.c: Likewise.
	* cfganal.c: Likewise.
	* cfgcleanup.c: Likewise.
	* cfgexpand.c: Likewise.
	* cfghooks.c: Likewise.
	* cfghooks.h: Likewise.
	* cfgloop.c: Likewise.
	* cfgloop.h: Likewise.
	* cfgloopanal.c: Likewise.
	* cfgloopmanip.c: Likewise.
	* cfgrtl.c: Likewise.
	* cgraph.c: Likewise.
	* cgraph.h: Likewise.
	* cgraphclones.c: Likewise.
	* cgraphunit.c: Likewise.
	* combine.c: Likewise.
	* compare-elim.c: Likewise.
	* coverage.c: Likewise.
	* cprop.c: Likewise.
	* data-streamer.h: Likewise.
	* dbxout.c: Likewise.
	* dce.c: Likewise.
	* df-core.c: Likewise.
	* df-problems.c: Likewise.
	* df-scan.c: Likewise.
	* dominance.c: Likewise.
	* domwalk.c: Likewise.
	* domwalk.h: Likewise.
	* dse.c: Likewise.
	* dwarf2cfi.c: Likewise.
	* dwarf2out.c: Likewise.
	* dwarf2out.h: Likewise.
	* emit-rtl.c: Likewise.
	* except.c: Likewise.
	* except.h: Likewise.
	* expr.c: Likewise.
	* expr.h: Likewise.
	* final.c: Likewise.
	* fold-const.c: Likewise.
	* function.c: Likewise.
	* function.h: Likewise.
	* fwprop.c: Likewise.
	* gcc.c: Likewise.
	* gcse.c: Likewise.
	* genattr.c: Likewise.
	* genattrtab.c: Likewise.
	* genautomata.c: Likewise.
	* genextract.c: Likewise.
	* genopinit.c: Likewise
	* ggc-common.c: Likewise.
	* ggc.h: Likewise.
	* gimple-low.c: Likewise.
	* gimple-ssa-strength-reduction.c: Likewise.
	* gimple-streamer-in.c: Likewise.
	* gimple.c: Likewise.
	* gimple.h: Likewise.
	* gimplify.c: Likewise.
	* graph.c: Likewise.
	* graphds.c: Likewise.
	* graphds.h: Likewise.
	* graphite-blocking.c: Likewise.
	* graphite-clast-to-gimple.c: Likewise.
	* graphite-dependences.c: Likewise.
	* graphite-interchange.c: Likewise.
	* graphite-optimize-isl.c: Likewise.
	* graphite-poly.c: Likewise.
	* graphite-poly.h: Likewise.
	* graphite-scop-detection.c: Likewise.
	* graphite-scop-detection.h: Likewise.
	* graphite-sese-to-poly.c: Likewise.
	* graphite.c: Likewise.
	* godump.c: Likewise.
	* haifa-sched.c: Likewise.
	* hw-doloop.c: Likewise.
	* hw-doloop.h: Likewise.
	* ifcvt.c: Likewise.
	* insn-addr.h: Likewise.
	* ipa-cp.c: Likewise.
	* ipa-inline-analysis.c: Likewise.
	* ipa-inline-transform.c: Likewise.
	* ipa-inline.c: Likewise.
	* ipa-inline.h: Likewise.
	* ipa-prop.c: Likewise.
	* ipa-prop.h: Likewise.
	* ipa-pure-const.c: Likewise.
	* ipa-ref-inline.h: Likewise.
	* ipa-ref.c: Likewise.
	* ipa-ref.h: Likewise.
	* ipa-reference.c: Likewise.
	* ipa-split.c: Likewise.
	* ipa-utils.c: Likewise.
	* ipa-utils.h: Likewise.
	* ipa.c: Likewise.
	* ira-build.c: Likewise.
	* ira-color.c: Likewise.
	* ira-emit.c: Likewise.
	* ira-int.h: Likewise.
	* ira.c: Likewise.
	* loop-invariant.c: Likewise.
	* loop-unroll.c: Likewise.
	* lower-subreg.c: Likewise.
	* lra-lives.c: Likewise.
	* lra.c: Likewise.
	* lto-cgraph.c: Likewise.
	* lto-section-out.c: Likewise.
	* lto-streamer-in.c: Likewise.
	* lto-streamer-out.c: Likewise.
	* lto-streamer.h: Likewise.
	* lto-symtab.c: Likewise.
	* mcf.c: Likewise.
	* modulo-sched.c: Likewise.
	* omp-low.c: Likewise.
	* opts-common.c: Likewise.
	* opts-global.c: Likewise.
	* opts.c: Likewise.
	* opts.h: Likewise.
	* passes.c: Likewise.
	* predict.c: Likewise.
	* print-tree.c: Likewise.
	* profile.c: Likewise.
	* profile.h: Likewise.
	* read-rtl.c: Likewise.
	* ree.c: Likewise.
	* reg-stack.c: Likewise.
	* regrename.c: Likewise.
	* regrename.h: Likewise.
	* reload.c: Likewise.
	* reload.h: Likewise.
	* reload1.c: Likewise.
	* rtl.h: Likewise.
	* sched-deps.c: Likewise.
	* sched-int.h: Likewise.
	* sdbout.c: Likewise.
	* sel-sched-dump.c: Likewise.
	* sel-sched-ir.c: Likewise.
	* sel-sched-ir.h: Likewise.
	* sel-sched.c: Likewise.
	* sese.c: Likewise.
	* sese.h: Likewise.
	* statistics.h: Likewise.
	* stmt.c: Likewise.
	* stor-layout.c: Likewise.
	* store-motion.c: Likewise.
	* tlink.c: Likewise.
	* toplev.c: Likewise.
	* trans-mem.c: Likewise.
	* tree-browser.c: Likewise.
	* tree-call-cdce.c: Likewise.
	* tree-cfg.c: Likewise.
	* tree-cfgcleanup.c: Likewise.
	* tree-chrec.c: Likewise.
	* tree-chrec.h: Likewise.
	* tree-complex.c: Likewise.
	* tree-data-ref.c: Likewise.
	* tree-data-ref.h: Likewise.
	* tree-dfa.c: Likewise.
	* tree-diagnostic.c: Likewise.
	* tree-dump.c: Likewise.
	* tree-eh.c: Likewise.
	* tree-emutls.c: Likewise.
	* tree-flow.h: Likewise.
	* tree-if-conv.c: Likewise.
	* tree-inline.c: Likewise.
	* tree-inline.h: Likewise.
	* tree-into-ssa.c: Likewise.
	* tree-iterator.c: Likewise.
	* tree-loop-distribution.c: Likewise.
	* tree-mudflap.c: Likewise.
	* tree-optimize.c: Likewise.
	* tree-outof-ssa.c: Likewise.
	* tree-parloops.c: Likewise.
	* tree-phinodes.c: Likewise.
	* tree-predcom.c: Likewise.
	* tree-pretty-print.c: Likewise.
	* tree-scalar-evolution.c: Likewise.
	* tree-sra.c: Likewise.
	* tree-ssa-address.c: Likewise.
	* tree-ssa-alias.c: Likewise.
	* tree-ssa-ccp.c: Likewise.
	* tree-ssa-coalesce.c: Likewise.
	* tree-ssa-dce.c: Likewise.
	* tree-ssa-dom.c: Likewise.
	* tree-ssa-forwprop.c: Likewise.
	* tree-ssa-live.c: Likewise.
	* tree-ssa-live.h: Likewise.
	* tree-ssa-loop-im.c: Likewise.
	* tree-ssa-loop-ivcanon.c: Likewise.
	* tree-ssa-loop-ivopts.c: Likewise.
	* tree-ssa-loop-manip.c: Likewise.
	* tree-ssa-loop-niter.c: Likewise.
	* tree-ssa-loop-prefetch.c: Likewise.
	* tree-ssa-math-opts.c: Likewise.
	* tree-ssa-operands.c: Likewise.
	* tree-ssa-phiopt.c: Likewise.
	* tree-ssa-phiprop.c: Likewise.
	* tree-ssa-pre.c: Likewise.
	* tree-ssa-propagate.c: Likewise.
	* tree-ssa-reassoc.c: Likewise.
	* tree-ssa-sccvn.c: Likewise.
	* tree-ssa-sccvn.h: Likewise.
	* tree-ssa-strlen.c: Likewise.
	* tree-ssa-structalias.c: Likewise.
	* tree-ssa-tail-merge.c: Likewise.
	* tree-ssa-threadedge.c: Likewise.
	* tree-ssa-threadupdate.c: Likewise.
	* tree-ssa-uncprop.c: Likewise.
	* tree-ssa-uninit.c: Likewise.
	* tree-ssa.c: Likewise.
	* tree-ssanames.c: Likewise.
	* tree-stdarg.c: Likewise.
	* tree-streamer-in.c: Likewise.
	* tree-streamer-out.c: Likewise.
	* tree-streamer.c: Likewise.
	* tree-streamer.h: Likewise.
	* tree-switch-conversion.c: Likewise.
	* tree-vect-data-refs.c: Likewise.
	* tree-vect-generic.c: Likewise.
	* tree-vect-loop-manip.c: Likewise.
	* tree-vect-loop.c: Likewise.
	* tree-vect-patterns.c: Likewise.
	* tree-vect-slp.c: Likewise.
	* tree-vect-stmts.c: Likewise.
	* tree-vectorizer.c: Likewise.
	* tree-vectorizer.h: Likewise.
	* tree-vrp.c: Likewise.
	* tree.c: Likewise.
	* tree.h: Likewise.
	* value-prof.c: Likewise.
	* value-prof.h: Likewise.
	* var-tracking.c: Likewise.
	* varasm.c: Likewise.
	* varpool.c: Likewise.
	* vmsdbgout.c: Likewise.
	* config/bfin/bfin.c: Likewise.
	* config/c6x/c6x.c: Likewise.
	* config/darwin.c: Likewise.
	* config/i386/i386.c: Likewise.
	* config/ia64/ia64.c: Likewise.
	* config/mep/mep.c: Likewise.
	* config/mips/mips.c: Likewise.
	* config/pa/pa.c: Likewise.
	* config/rs6000/rs6000-c.c: Likewise.
	* config/rs6000/rs6000.c: Likewise.
	* config/rx/rx.c: Likewise.
	* config/spu/spu-c.c: Likewise.
	* config/vms/vms.c: Likewise.
	* config/vxworks.c: Likewise.
	* config/epiphany/resolve-sw-modes.c: Likewise.

From-SVN: r193595

Index: gcc/cp/ChangeLog

2012-10-31  Lawrence Crowl  <crowl@google.com>

	* decl2.c (var_finalized_p): Rename varpool_node to
	varpool_node_for_decl.
	(maybe_emit_vtables): Likewise.

Index: gcc/ada/ChangeLog

2012-10-31  Lawrence Crowl  <crowl@google.com>

	* gcc-interface/utils.c (gnat_write_global_declarations):
	Rename varpool_node to varpool_node_for_decl.

Index: gcc/lto/ChangeLog

2012-10-31  Lawrence Crowl  <crowl@google.com>

	* lto.c (lto_wpa_write_files): Change symtab checking to a checked
	down-cast via dyn_cast.
	* lto-partition.c (add_symbol_to_partition_1): Likewise.
	(undo_partition): Likewise.
	(lto_balanced_map): Likewise.
	(get_symbol_class): Likewise and via is_a.
	(lto_balanced_map): Change symtab checking to is_a.

From-SVN: r193106

and applies them to the use of cgraph_node, varpool_node, and symtab_node.

The functions are:

bool is_a <TYPE> (pointer)
  Tests whether the pointer actually points to a more derived TYPE.

TYPE *as_a <TYPE> (pointer)
  Converts pointer to a TYPE*.

TYPE *dyn_cast <TYPE> (pointer)
  Converts pointer to TYPE* if and only if "is_a <TYPE> pointer".
  Otherwise, returns NULL.
  This function is essentially a checked down cast.

These functions reduce compile time and increase type safety when treating a
generic item as a more specific item.  In essence, the code change is from

  if (symtab_function_p (node))
    {
      struct cgraph_node *cnode = cgraph (node);
      ....
    }

to

  if (cgraph_node *cnode = dyn_cast <cgraph_node> (node))
    {
      ....
    }

The necessary conditional test defines a variable that holds a known good
pointer to the specific item and avoids subsequent conversion calls and
the assertion checks that may come with them.

When, the property test is embedded within a larger condition, the variable
declaration gets pulled out of the condition.  (This leaves some room for
using the variable inappropriately.)

  if (symtab_variable_p (node)
      && varpool (node)->finalized)
    varpool_analyze_node (varpool (node));

becomes

  varpool_node *vnode = dyn_cast <varpool_node> (node);
  if (vnode && vnode->finalized)
    varpool_analyze_node (vnode);

Note that we have converted two sets of assertions in the calls to varpool
into safe and efficient use of a variable.


There are remaining calls to symtab_function_p and symtab_variable_p that
do not involve a pointer to a more specific type.  These have been converted
to calls to a functions is_a <cgraph_node> and is_a <varpool_node>.  The
original predicate functions have been removed.

The cgraph.h header defined both a struct and a function with the name
varpool_node.  This name overloading can cause some unintuitive error messages
when, as is common in C++, one omits the struct keyword when using the type.
I have renamed the function to varpool_node_for_decl.

Tested on x86_64.


Index: gcc/ChangeLog

2012-10-31  Lawrence Crowl  <crowl@google.com>

	* is-a.h: New.
	(is_a <T> (U*)): New.  Test for is-a relationship.
	(as_a <T> (U*)): New.  Treat as a derived type.
	(dyn_cast <T> (U*)): New.  Conditionally cast based on is_a.
	* cgraph.h (varpool_node): Rename to varpool_node_for_decl.
	Adjust callers to match.
	(is_a_helper <cgraph_node>::test (symtab_node_def *)): New.
	(is_a_helper <varpool_node>::test (symtab_node_def *)): New.
	(symtab_node_def::try_function): New.  Change most calls to
	symtab_function_p with calls to dyn_cast <cgraph_node> (p).
	(symtab_node_def::try_variable): New.  Change most calls to
	symtab_variable_p with calls to dyn_cast <varpool_node> (p).
	(symtab_function_p): Remove.  Change callers to use
        is_a <cgraph_node> (p) instead.
	(symtab_variable_p): Remove.  Change callers to use
        is_a <varpool_node> (p) instead.
	* cgraph.c (cgraph_node_for_asm): Remove redundant call to
	symtab_node_for_asm.
	* cgraphunit.c (symbol_finalized_and_needed): New.
	(symbol_finalized): New.
	(cgraph_analyze_functions): Split complicated conditionals out into
	above new functions.
	* Makefile.in (CGRAPH_H): Add is-a.h as used by cgraph.h.

From-SVN: r193051

2012-10-12  Richard Biener  <rguenther@suse.de>

	PR lto/54898
	* lto.c (gimple_types_compatible_p_1): Also compare
	TYPE_MAIN_VARIANT.
	(iterative_hash_gimple_type): Also hash TYPE_MAIN_VARIANT.

From-SVN: r192397

gcc/
2012-10-08  Tobias Burnus  <burnus@net-b.de>

	* lto-cgraph.c (input_node_opt_summary): Remove unused code.
	* lto-opts.c (append_to_collect_gcc_options): Fix condition.
	* lto-symtab.c (lto_cgraph_replace_node): Don't xstrdup string
	which is passed to fprintf.

gcc/lto/
2012-10-08  Tobias Burnus  <burnus@net-b.de>

	* lto-lang.c (lto_register_builtin_type): Avoid useless
	decl creation.
	* lto-object.c (lto_obj_file_open, lto_obj_file_open): Free memory.

From-SVN: r192250

2012-10-08  Tobias Burnus  <burnus@net-b.de>

        * lto.c (lto_wpa_write_files, read_cgraph_and_symbols):
        Free lto_file struct after closing the file.

From-SVN: r192216

	* lto/lto.c (remember_with_vars): Also fixup INTEGER_CST.
	(fixup_integer_cst): New functoin.
	(lto_ft_type): Fixup BASETYPE of methods and offsets.

From-SVN: r192214

	* lto-cgraph.c (lto_symtab_encoder_new): New parameter FOR_INPUT.
	(lto_symtab_encoder_delete): Update.
	(lto_symtab_encoder_encode): Update.
	(compute_ltrans_boundary): Update.
	(input_symtab): Update.
 	* lto-streamer.h (lto_symtab_encoder_new): Update.
	
	* lto.c (read_cgraph_and_symbols): Release type merging hash early;
	release input encoders.
	* lto-partition.c (new_partition): Update for new lto_symtab_encoder_new.

From-SVN: r192184

	PR lto/54790 
	* lto.c (resolution_map): New static var.
	(register_resolution): New function.
	(lto_register_var_decl_in_symtab): Use it.
	(read_cgraph_and_symbols): Copy resolutions into the symtab.
	* lto-streamer.h (lto_symtab_register_decl, lto_symtab_get_resolution,
	lto_mark_nothrow_fndecl, lto_fixup_nothrow_decls): Remove.
	* lto-symtab.c (lto_symtab_register_decl): Remove.

From-SVN: r192159

2012-09-20  Martin Jambor  <mjambor@suse.cz>

	* function.c (push_cfun): Check old current_function_decl matches
	old cfun, set new current_function_decl to the decl of the new
	cfun.
	(push_struct_function): Likewise.
	(pop_cfun): Likewise.
	(allocate_struct_function): Move call to
	invoke_set_current_function_hook to the end of the function.
	* cfgexpand.c (estimated_stack_frame_size): Do not set and restore
	current_function_decl.
	* cgraph.c (cgraph_release_function_body): Likewise.
	* cgraphunit.c (cgraph_process_new_functions): Likewise.
	(cgraph_add_new_function): Likewise.
	(cgraph_analyze_function): Likewise.
	(assemble_thunk): Set cfun to NULL at the end.
	(expand_function): Move call to set_cfun downwards.
	* gimple-low.c (record_vars_into): Only check current_function_decl
	before possibly doing push_cfun.
	* gimplify.c (gimplify_function_tree): Do not set and restore
	current_function_decl.
	* ipa-inline-analysis.c (compute_inline_parameters): Likewise.
	(inline_analyze_function): Likewise.
	* ipa-prop.c (ipa_analyze_node): Likewise.
	* ipa-pure-const.c (analyze_function): Likewise.
	* lto-streamer-in.c (lto_input_function_body): Do not set
	current_function_decl.
	* lto-streamer-out.c (output_function): Do not set and restore
	current_function_decl.
	* omp-low.c (finalize_task_copyfn): Likewise.
	(expand_omp_taskreg): Likewise.
	(create_task_copyfn): Likewise, move push_cfun up quite a bit.
	* passes.c (dump_passes): Do not set and restore current_function_decl.
	(do_per_function): Likewise.
	(do_per_function_toporder): Likewise.
	* trans-mem.c (ipa_tm_scan_irr_function): Likewise.
	(ipa_tm_transform_transaction): Likewise.
	(ipa_tm_transform_clone): Likewise.
	(ipa_tm_execute): Likewise.
	* tree-emutls.c (lower_emutls_function_body): Likewise.
	* tree-inline.c (initialize_cfun): Do not call pop_cfun.
	(tree_function_versioning): Do not call push_cfun, do not set and
	restore current_function_decl.  Remove assert checking consistency of
	cfun and current_function_decl.
	* tree-profile.c (tree_profiling): Do not set and restore
	current_function_decl.
	* tree-sra.c (convert_callers_for_node): Do not set
	current_function_decl.
	(convert_callers): Do not restore current_function_decl.
	(modify_function): Do not set current_function_decl.
	* tree-ssa-structalias.c (ipa_pta_execute): Do not set and restore
	current_function_decl.

fortran/
	* trans-decl.c (gfc_get_extern_function_decl): Push NULL cfun.  Do not
	set and restore current_function_decl.
	(gfc_init_coarray_decl): Do not set and restore current_function_decl.

lto/
	* lto.c (lto_materialize_function): Call push_struct_function and
	pop_cfun.

From-SVN: r191577

gcc:
	2012-09-19  Dehao Chen  <dehao@google.com>

	* toplev.c (general_init): Init block_locations.
	* tree.c (tree_set_block): New.
	(tree_block): Change to use LOCATION_BLOCK.
	* tree.h (TREE_SET_BLOCK): New.
	* final.c (reemit_insn_block_notes): Change to use LOCATION_BLOCK.
	(final_start_function): Likewise.
	* input.c (expand_location_1): Likewise.
	* input.h (LOCATION_LOCUS): New.
	(LOCATION_BLOCK): New.
	(IS_UNKNOWN_LOCATION): New.
	* fold-const.c (expr_location_or): Change to use new location.
	* reorg.c (emit_delay_sequence): Likewise.
	(try_merge_delay_insns): Likewise.
	* modulo-sched.c (dump_insn_location): Likewise.
	* lto-streamer-out.c (lto_output_location_bitpack): Likewise.
	* lto-cgraph.c (output_node_opt_summary): Likewise.
	* jump.c (rtx_renumbered_equal_p): Likewise.
	* ifcvt.c (noce_try_move): Likewise.
	(noce_try_store_flag): Likewise.
	(noce_try_store_flag_constants): Likewise.
	(noce_try_addcc): Likewise.
	(noce_try_store_flag_mask): Likewise.
	(noce_try_cmove): Likewise.
	(noce_try_cmove_arith): Likewise.
	(noce_try_minmax): Likewise.
	(noce_try_abs): Likewise.
	(noce_try_sign_mask): Likewise.
	(noce_try_bitop): Likewise.
	(noce_process_if_block): Likewise.
	(cond_move_process_if_block): Likewise.
	(find_cond_trap): Likewise.
	* ipa-prop.c (ipa_set_jf_constant): Likewise.
	(ipa_write_jump_function): Likewise.
	* dwarf2out.c (add_src_coords_attributes): Likewise.
	* expr.c (expand_expr_real): Likewise.
	* tree-parloops.c (create_loop_fn): Likewise.
	* recog.c (peep2_attempt): Likewise.
	* function.c (free_after_compilation): Likewise.
	(expand_function_end): Likewise.
	(set_insn_locations): Likewise.
	(thread_prologue_and_epilogue_insns): Likewise.
	* print-rtl.c (print_rtx): Likewise.
	* profile.c (branch_prob): Likewise.
	* trans-mem.c (ipa_tm_scan_irr_block): Likewise.
	* gimplify.c (gimplify_call_expr): Likewise.
	* except.c (duplicate_eh_regions_1): Likewise.
	* emit-rtl.c (try_split): Likewise.
	(make_insn_raw): Likewise.
	(make_debug_insn_raw): Likewise.
	(make_jump_insn_raw): Likewise.
	(make_call_insn_raw): Likewise.
	(emit_pattern_after_setloc): Likewise.
	(emit_pattern_after): Likewise.
	(emit_debug_insn_after): Likewise.
	(emit_pattern_before): Likewise.
	(emit_insn_before_setloc): Likewise.
	(emit_jump_insn_before): Likewise.
	(emit_call_insn_before_setloc): Likewise.
	(emit_call_insn_before): Likeise.
	(emit_debug_insn_before_setloc): Likewise.
	(emit_copy_of_insn_after): Likewise.
	(insn_locators_alloc): Remove.
	(insn_locators_finalize): Remove.
	(insn_locators_free): Remove.
	(set_curr_insn_source_location): Remove.
	(get_curr_insn_source_location): Remove.
	(set_curr_insn_block): Remove.
	(get_curr_insn_block): Remove.
	(locator_scope): Remove.
	(insn_scope): Change to use new location.
	(locator_location): Remove.
	(insn_line): Change to use new location.
	(locator_file): Remove.
	(insn_file): Change to use new location.
	(locator_eq): Remove.
	(insn_locations_init): New.
	(insn_locations_finalize): New.
	(set_curr_insn_location): New.
	(curr_insn_location): New.
	* cfgexpand.c (gimple_assign_rhs_to_tree): Change to use new location.
	(expand_gimple_cond): Likewise.
	(expand_call_stmt): Likewise.
	(expand_gimple_stmt_1): Likewise.
	(expand_gimple_basic_block): Likewise.
	(construct_exit_block): Likewise.
	(gimple_expand_cfg): Likewise.
	* cfgcleanup.c (try_forward_edges): Likewise.
	* tree-ssa-live.c (remove_unused_scope_block_p): Likewise.
	(dump_scope_block): Likewise.
	(remove_unused_locals): Likewise.
	* rtl.c (rtx_equal_p_cb): Likewise.
	(rtx_equal_p): Likewise.
	* rtl.h (XUINT): New.
	(INSN_LOCATOR): Remove.
	(CURR_INSN_LOCATION): Remove.
	(INSN_LOCATION): New.
	(INSN_HAS_LOCATION): New.
	* tree-inline.c (remap_gimple_op_r): Change to use new location.
	(copy_tree_body_r): Likewise.
	(copy_phis_for_bb): Likewise.
	(expand_call_inline): Likewise.
	* tree-streamer-in.c (lto_input_ts_exp_tree_pointers): Likewise.
	* tree-streamer-out.c (write_ts_decl_minimal_tree_pointers): Likewise.
	* gimple-streamer-out.c (output_gimple_stmt): Likewise.
	* combine.c (try_combine): Likewise.
	* tree-outof-ssa.c (set_location_for_edge): Likewise.
	(insert_partition_copy_on_edge): Likewise.
	(insert_value_copy_on_edge): Likewise.
	(insert_rtx_to_part_on_edge): Likewise.
	(insert_part_to_rtx_on_edge): Likewise.
	* basic-block.h (edge_def): Remove field.
	* gimple.h (gimple_statement_base): Remove field.
	(gimple_bb): Change to use new location.
	(gimple_set_block): Likewise.
	(gimple_has_location): Likewise.
	* tree-cfg.c (make_cond_expr_edges): Likewise.
	(make_goto_expr_edges): Likewise.
	(gimple_can_merge_blocks_p): Likewise.
	(move_stmt_op): Likewise.
	(move_block_to_fn): Likewise.
	* config/alpha/alpha.c (alpha_output_mi_thunk_osf): Likewise.
	* config/sparc/sparc.c (sparc_output_mi_thunk): Likewise.
	* config/i386/i386.c (x86_output_mi_thunk): Likewise.
	* config/tilegx/tilegx.c (tilegx_output_mi_thunk): Likewise.
	* config/sh/sh.c (sh_output_mi_thunk): Likewise.
	* config/ia64/ia64.c (ia64_output_mi_thunk): Likewise.
	* config/rs6000/rs6000.c (rs6000_output_mi_thunk): Likewise.
	* config/score/score.c (score_output_mi_thunk): Likewise.
	* config/tilepro/tilepro.c (tilepro_asm_output_mi_thunk): Likewise.
	* config/mips/mips.c (mips_output_mi_thunk): Likewise.
	* cfgrtl.c (unique_locus_on_edge_between_p): Likewise.
	(unique_locus_on_edge_between_p): Likewise.
	(emit_nop_for_unique_locus_between): Likewise.
	(force_nonfallthru_and_redirect): Likewise.
	(fixup_reorder_chain): Likewise.
	(cfg_layout_merge_blocks): Likewise.
	* stmt.c (emit_case_nodes): Likewise.

gcc/lto:
	2012-09-19  Dehao Chen  <dehao@google.com>

	* lto/lto.c (lto_fixup_prevailing_decls): Remove tree.exp.block field.

libcpp:
	2012-09-19  Dehao Chen  <dehao@google.com>

	* include/line-map.h (MAX_SOURCE_LOCATION): New value.
	(location_adhoc_data_fini): New.
	(get_combined_adhoc_loc): New.
	(get_data_from_adhoc_loc): New.
	(get_location_from_adhoc_loc): New.
	(location_adhoc_data_map): New.
	(COMBINE_LOCATION_DATA): New.
	(IS_ADHOC_LOC): New.
	(expanded_location): New field.
	(line_maps): New field.
	* line-map.c (location_adhoc_data): New.
	(location_adhoc_data_hash): New.
	(location_adhoc_data_eq): New.
	(location_adhoc_data_update): New.
	(get_combined_adhoc_loc): New.
	(get_data_from_adhoc_loc): New.
	(get_location_from_adhoc_loc): New.
	(location_adhoc_data_init): New.
	(location_adhoc_data_fini): New.
	(linemap_init): Initialize location_adhoc_data.
	(linemap_lookup): Change to use new location.
	(linemap_ordinary_map_lookup): Likewise.
	(linemap_macro_map_lookup): Likewise.
	(linemap_macro_map_loc_to_def_point): Likewise.
	(linemap_macro_map_loc_unwind_toward_spel): Likewise.
	(linemap_get_expansion_line): Likewise.
	(linemap_get_expansion_filename): Likewise.
	(linemap_location_in_system_header_p): Likewise.
	(linemap_location_from_macro_expansion_p): Likewise.
	(linemap_macro_loc_to_spelling_point): Likewise.
	(linemap_macro_loc_to_def_point): Likewise.
	(linemap_macro_loc_to_exp_point): Likewise.
	(linemap_resolve_location): Likewise.
	(linemap_unwind_toward_expansion): Likewise.
	(linemap_unwind_to_first_non_reserved_loc): Likewise.
	(linemap_expand_location): Likewise.
	(linemap_dump_location): Likewise.
	(linemap_line_start): Likewise.

From-SVN: r191494

	* symtab.c (insert_to_assembler_name_hash): Do not insert
	register vars.
	(unlink_from_assembler_name_hash): NULL out pointers of unlinked
	var.
	(symtab_prevail_in_asm_name_hash): New.
	(symtab_initialize_asm_name_hash): Break out from ...
	(symtab_node_for_asm): ... here.
	(dump_symtab_base): Dump LTO file data.
	(verify_symtab_base): Register vars are not in symtab.
	* cgraph.h (symtab_initialize_asm_name_hash,
	symtab_prevail_in_asm_name_hash): New functions.
	(symtab_real_symbol_p): New inline.
	* lto-symtab.c: Do not include gt-lto-symtab.h.
	(lto_symtab_entry_def): Remove.
	(lto_symtab_entry_t): Remove.
	(lto_symtab_identifiers): Remove.
	(lto_symtab_free): Remove.
	(lto_symtab_entry_hash): Remove.
	(lto_symtab_entry_eq): Remove.
	(lto_symtab_entry_marked_p): Remove.
	(lto_symtab_maybe_init_hash_table): Remove.
	(resolution_guessed_p, set_resolution_guessed): New functions.
	(lto_symtab_register_decl): Only set resolution info.
	(lto_symtab_get, lto_symtab_get_resolution): Remove.
	(lto_symtab_merge): Reorg to work across symtab; do nothing if decls
	are same.
	(lto_symtab_resolve_replaceable_p): Reorg to work on symtab.
	(lto_symtab_resolve_can_prevail_p): Likewise; only real symbols can
	prevail.
	(lto_symtab_resolve_symbols): Reorg to work on symtab.
	(lto_symtab_merge_decls_2): Likewise.
	(lto_symtab_merge_decls_1): Likewise; add debug dumps.
	(lto_symtab_merge_decls): Likewise; do not merge at ltrans stage.
	(lto_symtab_merge_cgraph_nodes_1): Reorg to work on symtab.
	(lto_symtab_merge_cgraph_nodes): Likewise; do not merge at ltrans stage.
	(lto_symtab_prevailing_decl): Rewrite to lookup into symtab.
	* lto-streaer.h (lto_symtab_free): Remove.
	* lto-cgraph.c (add_references): Cleanup.
	* varpool.c (varpool_assemble_decl): Skip hard regs.

	* lto.c (lto_materialize_function): Update confused comment.
	(read_cgraph_and_symbols): Do not free symtab.

From-SVN: r191466