path: root/gcc/cp/ChangeLog

2016-09-01  Marek Polacek  <polacek@redhat.com>

	PR c/7652
	* error.c (dump_type): Fix falls through comment.
	(dump_decl): Likewise.
	(dump_expr): Likewise.

2016-08-30  David Malcolm  <dmalcolm@redhat.com>

	* parser.c (cp_parser_enclosed_template_argument_list): Add fix-it
	hint to ">>" within nested template argument list error.

2016-08-30  David Malcolm  <dmalcolm@redhat.com>

	* name-lookup.c (suggest_alternatives_for): Use add_fixit_replace
	rather than add_fixit_misspelled_id.
	* parser.c (cp_parser_diagnose_invalid_type_name): Likewise.

2016-08-29  Jason Merrill  <jason@redhat.com>

	PR c++/77379
	* mangle.c (maybe_check_abi_tags): Add version parm, handle thunks.
	(mangle_thunk): Add thunk parameter.
	* method.c (finish_thunk): Pass it.
	* cp-tree.h: Declare it.

2016-08-15  Jason Merrill  <jason@redhat.com>

	Avoid calling a trivial default constructor.
	* class.c (default_ctor_p): New.
	(in_class_defaulted_default_constructor): Use it.
	(type_has_non_user_provided_default_constructor): Use it.
	* call.c (build_over_call): Handle trivial default constructor.
	* cp-tree.h: Declare default_ctor_p.

	PR c++/57728
	* pt.c (do_type_instantiation): Don't mess with non-user-provided
	member functions.

2016-08-25  Marek Polacek  <polacek@redhat.com>

	* parser.c (cp_parser_binary_expression): Pass LHS to
	warn_logical_not_parentheses.

2016-08-18  Marek Polacek  <polacek@redhat.com>

	PR c/7652
	* call.c (add_builtin_candidate): Add gcc_fallthrough.
	* cxx-pretty-print.c (pp_cxx_unqualified_id): Likewise.
	* parser.c (cp_parser_skip_to_end_of_statement): Likewise.
	(cp_parser_cache_defarg): Likewise.

2016-08-12  Marek Polacek  <polacek@redhat.com>

	PR c/7652
	* call.c (add_builtin_candidate): Add FALLTHRU.
	(build_integral_nontype_arg_conv): Adjust fall through comment.
	(build_new_op_1): Add FALLTHRU.
	(convert_like_real): Adjust fall through comment.
	* class.c (fixed_type_or_null): Likewise.
	* constexpr.c (cxx_eval_constant_expression): Likewise.
	(potential_constant_expression_1): Likewise.  Add FALLTHRU.
	* cp-gimplify.c (cp_gimplify_expr): Adjust fall through comment.
	(cp_fold): Add FALLTHRU.
	* cvt.c (build_expr_type_conversion): Adjust fall through comment.
	* cxx-pretty-print.c (pp_cxx_unqualified_id): Add FALLTHRU.
	(pp_cxx_qualified_id): Likewise.
	(cxx_pretty_printer::constant): Adjust fall through comment.
	(cxx_pretty_printer::primary_expression): Add FALLTHRU.
	(pp_cxx_pm_expression): Adjust fall through comment.
	(cxx_pretty_printer::expression): Add FALLTHRU.
	(cxx_pretty_printer::declaration_specifiers): Reformat code.
	(pp_cxx_type_specifier_seq): Adjust fall through comment.
	(pp_cxx_ptr_operator): Likewise.  Add FALLTHRU.
	* error.c (dump_type): Adjust fall through comment.
	(dump_decl): Likewise.
	* mangle.c (write_type): Likewise.
	* method.c (synthesized_method_walk): Add FALLTHRU.
	* name-lookup.c (arg_assoc_type): Likewise.
	* parser.c (cp_lexer_print_token): Adjust fall through comment.
	(cp_parser_primary_expression): Add FALLTHRU.
	(cp_parser_operator): Likewise.
	* pt.c (find_parameter_packs_r): Likewise.
	(tsubst_aggr_type): Adjust fall through comment.
	* semantics.c (finish_omp_clauses): Add FALLTHRU.
	* tree.c (lvalue_kind): Likewise.

2016-08-12  Alexandre Oliva <aoliva@redhat.com>

	PR debug/63240
	* cp-objcp-common.c (cp_function_decl_defaulted): New.
	(cp_function_decl_explicit_p): Const_tree-ify.
	(cp_function_decl_deleted_p): Likewise.
	* cp-objcp-common.h (cp_function_decl_defaulted): Declare.
	(cp_function_decl_explicit_p): Const_tree-ify.
	(cp_function_decl_deleted_p): Likewise.
	(LANG_HOOKS_FUNCTION_DECL_DEFAULTED): Redefine.

2016-08-11  Jakub Jelinek  <jakub@redhat.com>

	PR c++/72868
	* constexpr.c (label_matches): Handle case range expressions.

2016-08-11  Jason Merrill  <jason@redhat.com>

	PR c++/73456
	* logic.cc (non_atomic_constraint_p): Handle EXPR_PACK_EXPANSION.

2016-08-10  Jason Merrill  <jason@redhat.com>

	Implement C++17 constexpr if.
	* cp-tree.h (IF_STMT_CONSTEXPR_P): New.
	* name-lookup.c (push_to_top_level, pop_from_top_level_1): Handle it.
	* parser.h (struct cp_parser): Add in_discarded_stmt field.
	* parser.c (cp_parser_selection_statement): Handle 'if constexpr'.
	(cp_parser_jump_statement): Avoid deducing from a discarded return.
	* pt.c (tsubst_expr): Only instantiate taken branch of constexpr if.
	* semantics.c (begin_if_stmt): Set the binding level this_entity.
	(finish_if_stmt_cond): Require the condition of a
	constexpr if to be constant.
	* decl.c (level_for_constexpr_if): New.
	(named_label_entry): Add in_constexpr_if field.
	(poplevel_named_label_1): Set it.
	(check_goto): Check it.
	(check_previous_goto_1): Check level_for_constexpr_if.

2016-08-09  Jason Merrill  <jason@redhat.com>

	PR c++/68703
	* decl2.c (any_dependent_type_attributes_p): New.
	* pt.c (dependent_type_p_r, type_dependent_expression_p): Check it.
	* semantics.c (finish_id_expression): Check it.
	* typeck.c (finish_class_member_access_expr): Check it.

	PR c++/71712
	* class.c (check_abi_tags): Don't duplicate tags for conversion ops.

	Adjust mangling of ABI tags on class template member functions.
	* class.c (missing_abi_tags): New.
	(check_abi_tags): Don't check template. Add just_checking mode.
	* mangle.c (abi_flag_at_least, any_abi_below, equal_abi_tags): New.
	(sorted_abi_tags): Split out from write_abi_tags.
	(struct releasing_vec): New.
	(write_unqualified_name): Only look for the primary
	template for types.  Implement backward compatibility.

	PR c++/72849
	* constexpr.c (cxx_eval_constant_expression): Check
	COMPLETE_TYPE_P before calling is_really_empty_class.
	* class.c (is_really_empty_class): Don't call complete_type.

	PR c++/56701
	* typeck.c (cp_build_addr_expr_1): Remove special *this handling.

2016-08-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/72809
	* rtti.c (get_pseudo_ti_index): Return TK_CLASS_TYPE for
	builtin aggregate types without TYPE_BINFO.

2016-08-08  Jason Merrill  <jason@redhat.com>

	Implement C++17 constexpr lambda.
	* class.c (finalize_literal_type_property): Handle lambdas.
	* constexpr.c (is_valid_constexpr_fn): Likewise.  No longer static.
	(explain_invalid_constexpr_fn, cxx_eval_call_expression): Handle
	lambdas.
	(cxx_eval_constant_expression): Handle capture proxy.
	(var_in_constexpr_fn): Don't check for C++14.
	(var_in_maybe_constexpr_fn): New.
	(potential_constant_expression_1): Use it.  Check DECL_EXPR for
	declarations not allowed in constexpr function.  Handle
	STATIC_ASSERT, RANGE_FOR_STMT.
	* decl.c (make_rtl_for_nonlocal_decl): Use var_in_maybe_constexpr_fn.
	(finish_function): Set DECL_DECLARED_CONSTEXPR_P on lambda members.
	* lambda.c (begin_lambda_type): Set CLASSTYPE_LITERAL_P.
	(maybe_add_lambda_conv_op): Clear thunk CALL_EXPR location.
	(lambda_static_thunk_p): New.
	* parser.c (cp_keyword_starts_decl_specifier_p): Add RID_CONSTEXPR.
	(CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR): New enumerator.
	(cp_parser_decl_specifier_seq): Handle it.
	(cp_parser_lambda_declarator_opt): Use cp_parser_decl_specifier_seq.
	* pt.c (instantiate_class_template_1): Set CLASSTYPE_LITERAL_P.
	(tsubst_copy_and_build) [CALL_EXPR]: Propagate CALL_FROM_THUNK_P.
	* error.c (dump_function_decl): Check TFF_NO_TEMPLATE_BINDINGS.
	(dump_expr) [FUNCTION_DECL]: Pass it.

2016-08-08  Jason Merrill  <jason@redhat.com>

	PR c++/67131
	* class.c (is_really_empty_class): Call complete_type.
	* constexpr.c (cxx_eval_constant_expression): Check
	is_really_empty_class.
	(potential_constant_expression_1): Likewise.  Check for error type.

2016-08-08  Jakub Jelinek  <jakub@redhat.com>

	PR c++/58706
	* parser.c: Include tree-iterator.h.
	(cp_parser_omp_for_loop_init): Move lambda DECL_EXPRs from init
	to FOR_BLOCK.
	(cp_parser_omp_for_loop): Handle non-STATEMENT_LIST FOR_BLOCK
	entries.

2016-08-06  Jonathan Wakely  <jwakely@redhat.com>

	* call.c (convert_like_real): Harmonize diagnostics for invalid
	reference binding.

2016-08-05  Martin Sebor  <msebor@redhat.com>

	* constexpr.c (cxx_eval_store_expression): Remove hyphen from
	the spelling of "constant-expression" in diagnostic messages
	for consistency.
	(cxx_eval_constant_expression): Same.
	(cxx_eval_outermost_constant_expr): Same.
	(potential_constant_expression_1): Same.

2016-08-05  Nathan Sidwell  <nathan@acm.org>

	PR c++/68724
	* pt.c (unify): TRAIT_EXPR is an expr.

2016-08-04  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/72800
	* lambda.c (add_capture): Check lambda_capture_field_type return
	value for error_mark_node.

2016-08-04  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/72759
	* pt.c (tsubst_qualified_id): Return error_mark_node if
	template_args is error_mark_node.

2016-08-04  Jason Merrill  <jason@redhat.com>

	PR c++/72415
	* pt.c (tsubst_pack_expansion): Pull a single pack expansion out
	of the TREE_VEC.

	* cp-tree.h (TYPE_UNNAMED_P): Rename from TYPE_ANONYMOUS_P.
	(TYPE_WAS_UNNAMED): Rename from TYPE_WAS_ANONYMOUS.
	* class.c, decl.c, decl2.c, error.c, lambda.c, mangle.c,
	name-lookup.c, parser.c, pt.c, semantics.c, tree.c: Adjust.

	PR c++/72796
	* typeck.c (finish_class_member_access_expr): Avoid stripping
	SCOPE_REF to dependent base.

2016-08-04  Thomas Schwinge  <thomas@codesourcery.com>

	* parser.c (cp_ensure_no_oacc_routine): Improve diagnostics.
	(cp_parser_late_parsing_cilk_simd_fn_info): Fix diagnostics.
	(cp_parser_late_parsing_oacc_routine, cp_finalize_oacc_routine):
	Simplify code, and improve diagnostics.
	(cp_parser_oacc_routine): Likewise.  Move pragma context
	checking...
	(cp_parser_pragma): ... here.

	* parser.h (struct cp_omp_declare_simd_data): New.
	(struct cp_parser): Use it for oacc_routine member.
	* parser.c (cp_ensure_no_oacc_routine, cp_parser_oacc_routine)
	(cp_parser_late_parsing_oacc_routine, cp_finalize_oacc_routine):
	Use it.  Simplify code.
	(cp_parser_new): Initialize all members pointing to special
	parsing data structures.
	(cp_parser_cilk_simd_fn_vector_attrs): Initialize
	parser->cilk_simd_fn_info->clauses.
	(cp_parser_omp_declare_simd): Initialize
	parser->omp_declare_simd->clauses.
	(cp_parser_late_parsing_omp_declare_simd): Simplify code.

2016-08-04  Marek Polacek  <polacek@redhat.com>

	PR c++/70229
	* constexpr.c (check_constexpr_ctor_body_1): Allow typedef
	declarations.

2016-08-01  Jason Merrill  <jason@redhat.com>

	* mangle.c (mangle_decl): Warn about mangled name change even if
	DECL_REALLY_EXTERN.

	* mangle.c (get_abi_tags): New.
	(find_substitution, write_unqualified_name, write_abi_tags)
	(maybe_check_abi_tags): Use it.

	* mangle.c (mangle_decl): Fix mangled name change warning.

	PR c++/72766
	* constexpr.c (cxx_eval_pointer_plus_expression): Check constancy
	of nelts.
	* cp-gimplify.c (cp_fully_fold): Only maybe_constant_value in
	C++11 and up.

2016-07-30 Martin Sebor  <msebor@redhat.com>

	PR c++/60760
	PR c++/71091
	* constexpr.c (cxx_eval_binary_expression): Reject invalid expressions
	involving null pointers.
	(cxx_eval_component_reference): Reject null pointer dereferences.
	(cxx_eval_indirect_ref): Reject indirecting through null pointers.
	(cxx_eval_constant_expression): Reject invalid expressions involving
	null pointers.

2016-07-29  Marek Polacek  <polacek@redhat.com>

	PR c/71926
	* semantics.c (maybe_convert_cond): Use the location of COND for the
	parentheses warning.

2016-07-29  Jason Merrill  <jason@redhat.com>

	* decl.c (build_enumerator): Tweak diagnostic.

	PR c++/72457
	* init.c (expand_aggr_init_1): Only handle value-init of bases.
	* constexpr.c (build_data_member_initialization): Handle multiple
	initializers for the same field.

2016-07-28  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71665
	* decl.c (build_enumerator): Check the type of the enumerator before
	calling cxx_constant_value.

2016-07-27  Jason Merrill  <jason@redhat.com>

	PR c++/71747
	* pt.c (get_partial_spec_bindings): Replace tparms and spec_args
	parameters with spec_tmpl.  Call push_tinst_level.
	(most_specialized_partial_spec): Adjust.
	(more_specialized_partial_spec): Adjust.

2016-07-25  Jason Merrill  <jason@redhat.com>

	PR c++/65970
	* cp-gimplify.c (genericize_cp_loop): Revert location change.

	PR c++/71837
	* lambda.c (add_capture): Leave a pack expansion in a TREE_LIST.
	(build_lambda_object): Call build_x_compound_expr_from_list.
	* pt.c (tsubst) [DECLTYPE_TYPE]: Likewise.

	PR c++/71833
	PR c++/54440
	* pt.c (coerce_template_parameter_pack): Fix logic for
	pack index.

	PR c++/65970
	* constexpr.c (cxx_eval_loop_expr): Count iterations.
	* cp-gimplify.c (genericize_cp_loop): Use start_locus even for
	infinite loops.

	PR c++/71972
	* constexpr.c (cxx_eval_array_reference): Handle looking for the
	value of an element we're currently modifying.

2016-07-24  Jason Merrill  <jason@redhat.com>

	PR c++/71515
	* pt.c (resolve_typename_type): Try to avoid calling
	currently_open_class.

2016-07-23  Jason Merrill  <jason@redhat.com>

	PR c++/66617
	* call.c (add_list_candidates): Handle VTT parm.
	(build_new_method_call_1): Likewise.

	PR c++/55922
	PR c++/63151
	* init.c (expand_aggr_init_1): Handle list-initialization from {}.

	PR c++/70709
	* class.c (walk_subobject_offsets): Handle 0-length array.

	PR c++/70778
	* pt.c (tsubst): Also substitute into the template of a
	BOUND_TEMPLATE_TEMPLATE_PARM.

	PR c++/71738
	* pt.c (lookup_template_class_1): Handle getting template from tsubst.

	PR c++/71350
	* decl.c (reshape_init_r): Check complain for missing braces warning.

2016-07-22  Jason Merrill  <jason@redhat.com>

	PR c++/71576
	* call.c (convert_like_real): Use lvalue_kind.

	PR c++/71748
	PR c++/52746
	* pt.c (tsubst_baselink): Call
	adjust_result_of_qualified_name_lookup for unqualified
	destructors.

2016-07-21  Jason Merrill  <jason@redhat.com>

	PR c++/69223
	* semantics.c (apply_deduced_return_type): Call
	complete_type_or_else before building the new RESULT_DECL.

	PR c++/71274
	* decl2.c (maybe_instantiate_decl): Split out from mark_used.
	(decl_constant_var_p): Use it instead.

	PR c++/71630
	* pt.c (instantiate_decl): Fix pattern_defined for namespace scope
	variable templates.

	PR c++/71913
	* call.c (unsafe_copy_elision_p): It's OK to elide when
	initializing an unknown object.

	* call.c (build_over_call): Check unsafe_copy_elision_p even for
	trivial constructors.
	* method.c (do_build_copy_constructor): Don't copy tail padding
	even in a trivial constructor.

2016-07-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71728
	* constexpr.c (potential_constant_expression_1) <case GOTO_EXPR>:
	Replace assert with test, return false if the goto isn't break
	or continue.  Formatting fix.

2016-07-21  Richard Biener  <rguenther@suse.de>

	* vtable-class-hierarchy.c (vtv_generate_init_routine): Set
	DECL_IGNORED_P.

2016-07-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71941
	* cp-gimplify.c (cp_genericize): For nested cp_genericize calls
	save/restore bc_label array.

2016-07-21  Jason Merrill  <jason@redhat.com>

	PR c++/70781
	* parser.c (cp_parser_lambda_expression): Unset OK if there was an
	error parsing the lambda-declarator.

	PR c++/71896
	* constexpr.c (cxx_eval_binary_expression): Handle comparison
	between lowered and unlowered PTRMEM_CST.

	PR c++/65168
	* typeck.c (cp_truthvalue_conversion): Compare pointers to nullptr.
	Don't set c_inhibit_evaluation_warnings.

	PR c++/71121
	* cp-gimplify.c (cp_fully_fold): First call maybe_constant_value.

2016-07-21  Andrew Sutton  <andrew.n.sutton@gmail.com>
	    Jason Merrill  <jason@redhat.com>

	Improving concepts performance and diagnostics.
	PR c++/67565
	PR c++/67579
	PR c++/71843
	* cp-tree.def (CHECK_CONSTR): New.
	* cp-tree.h (CHECK_CONSTR_CONCEPT): New.
	(CHECK_CONSTR_ARGS): New.
	* constraint.cc (make_predicate_constraint): Remove in favor of
	normalize_expression.
	(resolve_constraint_check): Actually return error_mark_node when
	resolution fails.
	(resolve_variable_concept_check): Perform coercion as if processing
	a template. Also return errors on resolution failure.
	(lift_*): Remove all of these functions. Don't unnecessarily inline
	concepts.
	(learn_*): Add facilities to memoize implications for subsumption
	during normalization.
	(expanding_concept): New.
	(expand_concept): New. Return the inlined and normalized definition
	of a concept when needed.
	(transform_*, xform_*): Rename to normalize_* to better reflect the
	responsibility of those functions.
	(normalize_template_id_expression): Check for non-boolean operands
	when possible. Generate check constraints instead of normal variable
	references.
	(normalize_call_expression): Report errors when resolution fails.
	(check_for_logical_overloads): Rewrite this check to more accurately
	report the error.
	(normalize_atom): Check for overloaded calls and invalid types before
	determining if the expression refers to a concept.
	(build_constraints): Don't cache normalized constraints or decomposed
	assumptions.
	(finish_shorthand_constraint): Return a normalized expression instead
	of a predicate constraint.
	(finish_template_introduction): Same.
	(placeholder_extract_concept_and_args): Rewrite this since we only
	ever get check constraints here.
	(equivalent_placeholder_constraints): Rewrite in terms of check
	constraints, and handle error_mark_nodes correctly.
	(tsubst_check_constraint, tsubst_expr_constr, tsubst_type_constr)
	(tsubst_implicit_conversion_constr)
	(tsubst_argument_deduction_constr, tsubst_exception_constr)
	(tsubst_parameterized_constraint, tsubst_constraint): New.
	(tsbust_conjunection): Replace with tsubst_logical_operator and
	actually generate the right kind of constraint.
	(tsubst_requirement_body): Reverse the order of substituted arguments
	so that they appear in the order written (helps diagnostics).
	(satisfy_check_constraint): New.
	(satisfy_conjunction): Simplify.
	(satisfy_disjunction): Same.
	(satisfy_constraint_1): Handle check constraints.
	(eval_constr): New (private) global state.
	(evaluating_constraints_sentinel): New. Manages eval_constr.
	(satisfy_constraint): Add timing variables.
	(satisfy_associated_constraints): Add hooks for memoization.
	(evaluate_function_concept): Build a check constraint instead of
	normalizing its definition.
	(evaluate_variable_concept): Same.
	(evaluate_constraint_expression): Normalize, but in the current
	declaration processing context.
	(evaluating_constraints_p): New.
	(elide_constraint_failure_p): Actually emit constraint_thresh errors.
	(diagnose_*): Remove artificial indentation. Add a new parameter to
	each that tracks the current (complete) constraint prior to any
	substitutions.
	(diagnose_expression): Removed.
	(diagnose_call_expression): Same.
	(diagnose_template_id): Same.
	(diagnose_template_id): New.
	(diagnose_logical_constraint): New.
	(diagnose_expression_constraint): Show the original expression.
	(diagnose_type_constraint): Show the original type.
	(diagnose_implicit_conversion_constraint): Be specific about
	failures, don't re-diagnose a known-to-be-failed substitutions,
	and manage elisions properly.
	(diagnose_argument_deduction_constraint): Same.
	(diagnose_exception_constraint): Same.
	(diagnose_parameterized_constraint): Same.
	(constraint_p): Allow EXPR_PACK_EXPANSION.
	* logic.cc (next_by_distance): Removed. No longer used.
	(any_p): Renamed from any_of.
	(term_entry, term_hasher): New.
	(term_list): Rewrite to include a hash table for quick lookup.
	Also, make less stateful.
	(proof_state): Extend to allow goals to be discharged once
	satisfied.
	(non_atomic_constraint_p): New.
	(any_non_atomic_constraints_p): New.
	(...rest...): Previous implementation completely replaced with an
	iterative algorithm that opportunistically prunes the search space
	before committing to using more memory.
	* parser.c: (cp_parser_type_parameter): Normalize constraints.
	(cp_parser_explicit_template_declaration): Same.
	* pt.c: (finish_template_variable): Be less redundant with this error
	message.
	(template_args_equal): No longer static.
	(tsubst_decl): Don't try to find specializations of variables that
	have already been instantiated.
	(build_non_dependent_expr): Avoid infinite recursion during concept
	expansion.
	(make_constrained_auto): Normalize constraints.
	(do_auto_deduction): When doing auto deduction from a
	partial-concept-id, be sure to include the explicit args checking
	the constraints.
	(constraint_sat_*): New. Memoize satisfied constraints.
	(concept_spec_*): New. Memoize expressions associated with a concept
	specialization.
	(constraint_memos, concept_memos): New.
	(lookup_constraint_satisfaction, memoize_constraint_satisfaction): New.
	(lookup_concept_satisfaction, memoize_concept_satisfaction): New.
	(get_concept_expansion, save_concept_expansion): New.
	(hash_subsumption_args): New.
	(comp_subsumption_args): New.
	(subsumption_*): New. Memoize parts of the subsumption relation.
	(lookup_subsumption_result, save_subsumption_result): New.
	(init_constraint_processing): Initialize memo tables.
	(get_constraints): Shortcut if !flag_concepts.
	* decl.c (grokfndecl): Normalize constraints.
	* error.c (dump_simple_decl): Print "concept" when appropriate.
	(dump_function_decl): Same.
	(dump_template_decl): Don't write requirements when we're not
	printing the header.
	(dump_expr): Handle fold expressions.
	* cxx-pretty-print.c (cxx_pretty_printer::expression): Handle
	fold expressions.
	(get_fold_operator): New.
	(pp_cxx_unary_left_fold_expression): New.
	(pp_cxx_unary_right_fold_expression): New.
	(pp_cxx_binary_fold_expression): New.
	(pp_cxx_check_constraint): New.
	(pp_cxx_*_constraint): Rewrite the grammar of internal constraints
	to make them easier to read when debugging.
	* search.c (accessible_p): Don't shortcut when evaluating constraints.
	* tree.c (cp_tree_equal): Handle CHECK_CONSTR.

2016-07-20  David Malcolm  <dmalcolm@redhat.com>

	PR c/70339
	PR c/71858
	* name-lookup.c: Include gcc-rich-location.h, spellcheck-tree.h,
	and parser.h.
	(suggest_alternatives_for): If no candidates are found, try
	lookup_name_fuzzy and report if if finds a suggestion.
	(consider_binding_level): New function.
	(lookup_name_fuzzy) New function.
	* parser.c: Include gcc-rich-location.h.
	(cp_lexer_next_token_is_decl_specifier_keyword): Move most of
	logic into...
	(cp_keyword_starts_decl_specifier_p): ...this new function.
	(cp_parser_diagnose_invalid_type_name): When issuing
	"does not name a type" errors, attempt to make a suggestion using
	lookup_name_fuzzy.
	* parser.h (cp_keyword_starts_decl_specifier_p): New prototype.
	* search.c (lookup_field_fuzzy_info::fuzzy_lookup_field): Reject
	types that are not CLASS_TYPE_P, rather than rejecting individual
	tree codes.

2016-07-20  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71909
	* parser.c (cp_parser_save_member_function_body): Consume
	__transaction_relaxed or __transaction_atomic with optional
	attribute.  Only skip catch with block if try keyword is seen.

	PR c++/50060
	* constexpr.c (cxx_eval_builtin_function_call): Pass false as lval
	when evaluating call arguments.  Use fold_builtin_call_array instead
	of fold_build_call_array_loc, return t if it returns NULL.  Otherwise
	check the result with potential_constant_expression and call
	cxx_eval_constant_expression on it.

2016-07-19  Jason Merrill  <jason@redhat.com>

	PR c++/67164
	* pt.c (iterative_hash_template_arg, template_args_equal): Don't
	handle ARGUMENT_PACK_SELECT.

2016-07-18  Jakub Jelinek  <jakub@redhat.com>

	PR c++/70869
	PR c++/71054
	* cp-gimplify.c (cp_genericize_r): Revert the 2016-07-07 change.
	* tree.c (cp_walk_subtrees): For DECL_EXPR on DECL_ARTIFICIAL
	non-static VAR_DECL, walk the decl's DECL_INITIAL, DECL_SIZE and
	DECL_SIZE_UNIT.

	PR c++/71835
	* call.c (build_op_call_1): Use convert_like_with_context only
	if cand->fn is a decl.

	PR c++/71828
	* constexpr.c (cxx_eval_constant_expression) <case REALPART_EXPR>:
	For lval don't use cxx_eval_unary_expression and instead recurse
	and if needed rebuild the reference.

	PR c++/71826
	* pt.c (tsubst_baselink): Only set BASELINK_OPTYPE for BASELINK_P.

	PR c++/71822
	* cp-gimplify.c (cp_gimplify_expr) <case VEC_INIT_EXPR>: Recursively
	fold *expr_p before genericizing it.

	PR c++/71871
	* typeck.c (build_x_conditional_expr): Revert the 2012-10-25 change.

2016-07-15  Jason Merrill  <jason@redhat.com>

	PR c++/71495
	* call.c (convert_like_real): Mask complain.
	* semantics.c (perform_koenig_lookup): Likewise.

	PR c++/71092
	* constexpr.c (cxx_eval_call_expression): Fail quietly when cgraph
	threw away DECL_SAVED_TREE.

	PR c++/71117
	Core 2189
	* call.c (add_template_conv_candidate): Disable if there are
	viable candidates.

	PR c++/71511
	* typeck2.c (cxx_incomplete_type_diagnostic): Handle DECLTYPE_TYPE.

	PR c++/71513
	* pt.c (tsubst_attributes): Fix loop logic.

	PR c++/71604
	PR c++/54430
	* parser.c (cp_parser_range_for): Modify IDENTIFIER_BINDING directly.
	(cp_parser_simple_declaration): Diagnose type definition in
	for-range-declaration.

	PR c++/71711
	* operators.def: Add *_FOLD_EXPR.
	* cp-tree.h (FOLD_EXPR_P): Parenthesize.
	* mangle.c (write_expression): Handle fold-expressions.
	* pt.c (tsubst_unary_left_fold, tsubst_binary_left_fold)
	(tsubst_unary_right_fold, tsubst_binary_right_fold): Handle
	partial instantiation.

	PR c++/71814
	* mangle.c (write_expression): Handle sizeof... an argument pack.

	PR c++/71718
	* pt.c (push_tinst_level_loc): Set at_eof before fatal_error.

	PR c++/70824
	* init.c (constant_value_1): Don't instantiated DECL_INITIAL of
	artificial variables.

2016-07-15  Cesar Philippidis  <cesar@codesourcery.com>

	* parser.c (cp_parser_oacc_declare): Don't scan for
	GOMP_MAP_POINTER.
	* semantics.c (handle_omp_array_sections): Mark data clauses with
	GOMP_MAP_FORCE_{PRESENT,TO,FROM,TOFROM} as potentially having
	zero-length subarrays.

2016-07-11  Jason Merrill  <jason@redhat.com>

	* decl.c (store_parm_decls): Remove check for void parm.

2016-07-08  Jason Merrill  <jason@redhat.com>

	* cp-tree.h: Unpoison lvalue_p.
	* call.c, class.c, constexpr.c, cvt.c, init.c, lambda.c, pt.c,
	tree.c, typeck.c, typeck2.c: Use lvalue_p instead of
	real_lvalue_p.

	* tree.c (obvalue_p): Rename from lvalue_p.
	(lvalue_p): Define for c-common.
	* call.c, cp-tree.h, cvt.c, init.c: Adjust.
	* typeck.c: Adjust.
	(cp_build_addr_expr_1): Remove obsolete code.

	* tree.c (glvalue_p): Rename from lvalue_or_rvalue_with_address_p.
	* call.c, cp-tree.h, typeck.c: Adjust.

	* lambda.c (maybe_add_lambda_conv_op): Fix null object argument.

	P0145R2: Refining Expression Order for C++.
	* cp-gimplify.c (lvalue_has_side_effects): New.
	(cp_gimplify_expr): Implement assignment ordering.
	* call.c (op_is_ordered, build_over_call): Adjust for
	-fargs-in-order renaming to -fstrong-eval-order.
	* cp-gimplify.c (cp_gimplify_expr): Likewise.

2016-07-07  Jakub Jelinek  <jakub@redhat.com>
	    Kai Tietz  <ktietz70@googlemail.com>

	PR c++/70869
	PR c++/71054
	* cp-gimplify.c (cp_genericize_r): For DECL_EXPR for non-static
	artificial vars, genericize their initializers.

2016-07-05  David Malcolm  <dmalcolm@redhat.com>

	PR c++/62314
	* parser.c (cp_parser_class_specifier_1): When reporting
	missing semicolons, use a fixit-hint to suggest insertion
	of a semicolon immediately after the closing brace,
	offsetting the reported column accordingly.

2016-07-04  Jan Beulich  <jbeulich@suse.com>

	* lang-specs.h ("@c++-header"): Conditionalize "-o".

2016-06-29  Thomas Schwinge  <thomas@codesourcery.com>

	* parser.c (cp_parser_pragma) <PRAGMA_OMP_CANCELLATION_POINT>:
	Move pragma context checking into...
	(cp_parser_omp_cancellation_point): ... here, and improve
	diagnostic messages.
	* semantics.c (finish_omp_cancel, finish_omp_cancellation_point):
	Improve diagnostic messages.

2016-06-28  Jakub Jelinek  <jakub@redhat.com>

	* Make-lang.in: Don't cat ../stage_current if it does not exist.

2016-06-24  Jason Merrill  <jason@redhat.com>

	P0145R2: Refining Expression Order for C++.
	* typeck.c (cp_build_modify_expr): Leave COMPOUND_EXPR on LHS.

	* tree.c (get_target_expr_sfinae): Handle bit-fields.
	(build_target_expr): Call mark_rvalue_use.

2016-06-24  Jakub Jelinek  <jakub@redhat.com>

	* call.c (magic_varargs_p): Return 3 for __builtin_*_overflow_p.
	(build_over_call): For magic == 3, do no conversion only on 3rd
	argument.

2016-06-23  Andi Kleen  <ak@linux.intel.com>

	* Make-lang.in: Add support for autofdo.

2016-06-21  Jason Merrill  <jason@redhat.com>

	* constraint.cc (constraints_satisfied_p): Keep as many levels of
	args as our template has levels of parms.

	* pt.c (template_parm_outer_level, uses_outer_template_parms): New.
	(type_dependent_expression_p): Use uses_outer_template_parms.

2016-06-20  David Malcolm  <dmalcolm@redhat.com>

	* parser.c (cp_parser_string_literal): Convert non-standard
	concatenation error to directly use a rich_location, and
	use that to add the location of the first literal to the
	diagnostic.

2016-06-17  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (validate_constexpr_redeclaration): Change pair of errors
	to error + inform.
	* error.c (dump_function_decl): Save the constexpr specifier too.

2016-06-17  Jakub Jelinek  <jakub@redhat.com>

	* tree.c (builtin_valid_in_constant_expr_p): Test for
	DECL_BUILT_IN_CLASS equal to BUILT_IN_NORMAL instead of just
	DECL_BUILT_IN.
	(bot_manip): Likewise.
	* call.c (magic_varargs_p): Likewise.

2016-06-17  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokfndecl): Change pair of errors to error + inform.

2016-06-17  Jason Merrill  <jason@redhat.com>

	PR c++/71209
	* typeck.c (finish_class_member_access_expr): Avoid "not a base"
	warning when there are dependent bases.

2016-06-17  Jakub Jelinek  <jakub@redhat.com>

	* semantics.c (handle_omp_array_sections_1): Don't ICE when
	processing_template_decl when checking for bitfields and unions.
	Look through REFERENCE_REF_P as base of COMPONENT_REF.
	(finish_omp_clauses): Look through REFERENCE_REF_P even for
	array sections with COMPONENT_REF bases.

2016-06-16  Jakub Jelinek  <jakub@redhat.com>

	* parser.c (cp_parser_omp_var_list_no_open): Call
	convert_from_reference before cp_parser_postfix_dot_deref_expression.
	* semantics.c (finish_omp_clauses): Don't ICE when
	processing_template_decl when checking for bitfields and unions.
	Look through REFERENCE_REF_P as base of COMPONENT_REF.

2016-06-15  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (wrapup_globals_for_namespace): Use DECL_SOURCE_LOCATION and
	"%qF" in warning_at instead of "%q+F" in warning.
	(check_redeclaration_exception_specification): Likewise in pedwarn
	(and error, inform, for consistency).
	* call.c (joust): Likewise.

2016-06-15  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70202
	* decl.c (xref_basetypes): Revert r117839 changes; add fix-up
	code at the end of the for loop; also revert r159637 changes,
	add back the gcc_assert.
	* cp-tree.h (xref_basetypes): Adjust declaration.
	* parser.c (cp_parser_class_head): Adjust xref_basetypes call.

2016-06-14  David Malcolm  <dmalcolm@redhat.com>

	* search.c: Include spellcheck-tree.h rather than spellcheck.h.

2016-06-14  David Malcolm  <dmalcolm@redhat.com>

	* typeck.c: Include "gcc-rich-location.h".
	(finish_class_member_access_expr): Simplify fixit code by
	using gcc_rich_location::add_fixit_misspelled_id.

2016-06-14  Jason Merrill  <jason@redhat.com>

	P0145R2: Refining Expression Order for C++.
	* cp-tree.h (CALL_EXPR_OPERATOR_SYNTAX, CALL_EXPR_ORDERED_ARGS)
	(CALL_EXPR_REVERSE_ARGS): New.
	* call.c (build_new_op_1): Set them.
	(extract_call_expr, op_is_ordered): New.
	(build_over_call): Set CALL_EXPR_ORDERED_ARGS.
	* cp-gimplify.c (cp_gimplify_expr) [CALL_EXPR]: Handle new flags.
	* pt.c (tsubst_copy_and_build): Copy new flags.
	* semantics.c (simplify_aggr_init_expr): Likewise.
	* tree.c (build_aggr_init_expr): Likewise.
	(build_min_non_dep_op_overload): Likewise.

2016-06-14  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71528
	* decl.c (duplicate_decls): For DECL_INITIALIZED_P non-external
	olddecl vars, preserve their TREE_READONLY bit.

	PR c++/71516
	* decl.c (complete_vars): Handle gracefully type == error_mark_node.

2016-06-14  Paolo Carlini  <paolo.carlini@oracle.com>

	* typeck2.c (digest_init_r): Use EXPR_LOC_OR_LOC on init.

2016-06-13  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokdeclarator): Fix typo in pedwarn text.

2016-06-10  Thomas Schwinge  <thomas@codesourcery.com>

	PR c/71381
	* parser.c (cp_parser_omp_var_list_no_open) <OMP_CLAUSE__CACHE_>:
	Loosen checking.

2016-06-09  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71465
	Revert:
	2016-06-04  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70202
	* parser.c (cp_parser_class_head): When xref_basetypes fails and
	emits an error do not zero the type.

2016-06-08  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (maybe_deduce_size_from_array_init): Use
	DECL_SOURCE_LOCATION in error_at.
	(layout_var_decl): Likewise.
	(check_array_initializer): Likewise.
	(check_initializer): Likewise.
	(duplicate_decls, check_elaborated_type_specifier): Tidy.

2016-06-08  Martin Sebor  <msebor@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>

	PR c++/70507
	PR c/68120
	* constexpr.c: Include gimple-fold.h.
	(cxx_eval_internal_function): New function.
	(cxx_eval_call_expression): Call it.
	(potential_constant_expression_1): Handle integer arithmetic
	overflow built-ins.
	* tree.c (builtin_valid_in_constant_expr_p): Handle
	BUILT_IN_{ADD,SUB,MUL}_OVERFLOW_P.

2016-06-08  Paolo Carlini  <paolo.carlini@oracle.com>

	* pt.c (tsubst, case TYPENAME_TYPE): Don't delay checking the
	return value of	tsubst_aggr_type for error_mark_node.

2016-06-08  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71442
	* pt.c (tsubst_copy): Only set TREE_USED on DECLs.

2016-06-06  Jakub Jelinek  <jakub@redhat.com>
	    Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70847
	PR c++/71330
	PR c++/71393
	* cp-gimplify.c (cp_fold_r): Set *walk_subtrees = 0 and return NULL
	right after cp_fold call if cp_fold has returned the same stmt
	already in some earlier cp_fold_r call.
	(cp_fold_function): Add pset automatic variable, pass its address
	to cp_walk_tree.

2016-06-04  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70202
	* parser.c (cp_parser_class_head): When xref_basetypes fails and
	emits an error do not zero the type.

2016-06-03  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/27100
	* decl.c (duplicate_decls): Properly copy the
	DECL_PENDING_INLINE_P, DECL_PENDING_INLINE_INFO and
	DECL_SAVED_FUNCTION_DATA fields from OLDDECL to NEWDECL.

2016-06-03  Chung-Lin Tang  <cltang@codesourcery.com>

	* semantics.c (finish_omp_clauses): Mark OpenACC reduction
	arguments as addressable when async clause exists.

2016-06-02  Jan Hubicka  <jh@suse.cz>

	* cp-gimplify.c (genericize_continue_stmt): Force addition of
	predict stmt.

2016-06-02  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (xref_tag_1): Change pairs of errors to error + inform.
	(start_enum): Likewise.
	* parser.c (cp_parser_class_head): Likewise.

2016-06-02  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71372
	* cp-gimplify.c (cp_fold): For INDIRECT_REF, if the folded expression
	is INDIRECT_REF or MEM_REF, copy over TREE_READONLY, TREE_SIDE_EFFECTS
	and TREE_THIS_VOLATILE flags.  For ARRAY_REF and ARRAY_RANGE_REF, copy
	over TREE_READONLY, TREE_SIDE_EFFECTS and TREE_THIS_VOLATILE flags
	to the newly built tree.

2016-05-31  Jason Merrill  <jason@redhat.com>

	* pt.c (instantiate_decl): Avoid recalculation.

	PR c++/60095
	PR c++/69515
	PR c++/69009
	* pt.c (instantiate_template_1): Don't put the partial
	specialization in DECL_TI_TEMPLATE.
	(partial_specialization_p, impartial_args): Remove.
	(regenerate_decl_from_template): Add args parm.
	(instantiate_decl): Look up the partial specialization again.

	PR c++/71227
	* pt.c (check_explicit_specialization): Give better diagnostic about
	specializing a hidden friend.

2016-05-31  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71248
	* decl.c (check_static_variable_definition): Use DECL_SOURCE_LOCATION
	to obtain correct locations; avoid redundant diagnostics on
	out-of-class definitions.

2016-05-30  Martin Sebor  <msebor@redhat.com>

	PR c++/71306
	* init.c (warn_placement_new_too_small): Handle placement new arguments
	that are elements of arrays more carefully.  Remove a pointless loop.

2016-05-30  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71349
	* parser.c (cp_parser_omp_for): Don't disallow nowait clause
	when combined with target construct.
	(cp_parser_omp_parallel): Pass cclauses == NULL as last argument
	to cp_parser_omp_all_clauses.

2016-05-30  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71238
	* lex.c (unqualified_name_lookup_error): Take a location too.
	(unqualified_fn_lookup_error): Take a cp_expr.
	* cp-tree.h (unqualified_name_lookup_error,
	unqualified_fn_lookup_error): Adjust declarations.
	* semantics.c (perform_koenig_lookup): Adjust
	unqualified_fn_lookup_error call, pass the location of
	the identifier too as part of a cp_expr.

2016-05-30  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71099
	* parser.c (cp_parser_function_specifier_opt): Use current_class_type
	to improve the diagnostic about wrong uses of 'virtual'.

2016-05-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71105
	* lambda.c (maybe_add_lambda_conv_op): Early return also when
	LAMBDA_EXPR_DEFAULT_CAPTURE_MODE != CPLD_NONE.

2016-05-28  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Revert:
	PR c++/69855
	* name-lookup.c (pushdecl_maybe_friend_1): Push local function
	decls into the global scope after stripping template bits
	and setting DECL_ANTICIPATED.

2016-05-27  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/60385
	* name-lookup.c (push_namespace): Return bool, false when pushdecl
	fails.
	* name-lookup.h (push_namespace): Adjust declaration.
	* parser.c (cp_parser_namespace_definition): Check push_namespace
	return value.

2016-05-27  Ville Voutilainen  <ville.voutilainen@gmail.com>

	PR c++/69855
	* name-lookup.c (pushdecl_maybe_friend_1): Push local function
	decls into the global scope after stripping template bits
	and setting DECL_ANTICIPATED.

2016-05-26  Jakub Jelinek  <jakub@redhat.com>

	* semantics.c (finish_omp_clauses) <case OMP_CLAUSE_SCHEDULE>: Warn
	if OMP_CLAUSE_SCHEDULE_CHUNK_EXPR is known not to be positive.

2016-05-26  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70822
	PR c++/70106
	* cp-tree.h (REF_PARENTHESIZED_P): Make this flag apply to
	SCOPE_REFs too.
	* pt.c (tsubst_qualified_id): If REF_PARENTHESIZED_P is set
	on the qualified_id then propagate it to the resulting
	expression.
	(do_auto_deduction): Check REF_PARENTHESIZED_P on SCOPE_REFs
	too.
	* semantics.c (force_paren_expr): If given a SCOPE_REF, just set
	its REF_PARENTHESIZED_P flag.

2016-05-25  Jason Merrill  <jason@redhat.com>

	PR c++/71173
	PR c++/70522
	* cp-tree.h (enum tag_types): Add scope_type.
	* parser.c (cp_parser_class_name): Use scope_type.
	(prefer_type_arg): Handle scope_type.
	(cp_parser_lookup_name): Use prefer_type_arg.
	* name-lookup.c (lookup_qualified_name): Change bool is_type_p to
	int prefer_type, use lookup_flags.
	* name-lookup.h: Adjust.

2016-05-24  Cesar Philippidis  <cesar@codesourcery.com>

	* parser.c (cp_parser_oacc_declare): Add support for
	GOMP_MAP_FIRSTPRIVATE_POINTER.
	* semantics.c (handle_omp_array_sections_1): Replace bool is_omp
	argument with enum c_omp_region_type ort.  Don't privatize OpenACC
	non-static members.
	(handle_omp_array_sections): Replace bool is_omp argument with enum
	c_omp_region_type ort.  Update call to handle_omp_array_sections_1.
	(finish_omp_clauses): Add specific errors and warning messages for
	OpenACC.  Use firsrtprivate pointers for OpenACC subarrays.  Update
	call to handle_omp_array_sections.

2016-05-24  Jason Merrill  <jason@redhat.com>

	PR c++/70584
	* cp-gimplify.c (cp_fold_maybe_rvalue): Loop in case cp_fold
	returns a decl.
	(cp_fold) [INDIRECT_REF]: Don't fold to an rvalue.

2016-05-24  Martin Sebor  <msebor@redhat.com>

	PR c++/71147
	* decl.c (layout_var_decl, grokdeclarator): Use complete_or_array_type_p.
	* pt.c (instantiate_class_template_1): Try to complete the element
	type of a flexible array member.
	(can_complete_type_without_circularity): Handle arrays of unknown bound.
	* typeck.c (complete_type): Also complete the type of the elements of
	arrays with an unspecified bound.

2016-05-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/69872
	* typeck2.c (check_narrowing): Check pedwarn return value.

2016-05-24  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71257
	* semantics.c (finish_omp_clauses) <case OMP_CLAUSE_LINEAR>:
	For OMP_CLAUSE_LINEAR_REF don't require type to be
	integral or pointer.

2016-05-24  Richard Biener  <rguenther@suse.de>

	PR middle-end/70434
	PR c/69504
	* expr.c (mark_exp_read): Handle VIEW_CONVERT_EXPR.
	* constexpr.c (cxx_eval_array_reference): Handle indexed
	vectors.
	* typeck.c (cp_build_array_ref): Adjust.

2016-05-23  Jason Merrill  <jason@redhat.com>

	PR c++/70344
	* constexpr.c (cxx_eval_call_expression): Check for
	fun == current_function_decl again.

	PR c++/70584
	* cp-gimplify.c (cp_fold) [INDIRECT_REF]: Call
	maybe_undo_parenthesized_ref.

	PR c++/70735
	* pt.c (tsubst_copy): Just return a local variable from
	non-template context.  Don't call rest_of_decl_compilation for
	duplicated static locals.
	(tsubst_decl): Set DECL_CONTEXT of local static from another
	function.

2016-05-23  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70972
	* method.c (forward_parm): Use cp_build_reference_type.

2016-05-23  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/69095
	* parser.c (cp_parser_initializer): Use check_for_bare_parameter_packs.

2016-05-23  Paolo Carlini  <paolo.carlini@oracle.com>

	* pt.c (check_for_bare_parameter_packs): Improve error message
	location for expressions.

2016-05-20  Nathan Sidwell  <nathan@acm.org>

	* constexpr.c (cxx_bind_parameters_in_call): Avoid gratuitous if
	... goto.
	(cxx_eval_call_expression): Fix comment grammar.

2016-05-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70572
	* decl.c (cp_finish_decl): Check do_auto_deduction return value
	and return immediately in case of erroneous code.

2016-05-19  Marek Polacek  <polacek@redhat.com>

	PR c++/71075
	* pt.c (unify_template_argument_mismatch): Use %qE instead of %qD.

2016-05-19  Jason Merrill  <jason@redhat.com>

	PR c++/10200
	* pt.c (fn_type_unification): Add outer template args if needed.
	(type_unification_real): Handle getting full args.

2016-05-19  David Malcolm  <dmalcolm@redhat.com>

	PR c++/71184
	* parser.c (cp_parser_operator): For array new/delete, check that
	cp_parser_require returned a non-NULL token before dereferencing
	it.

2016-05-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* decl.c (finish_enum_value_list): Use the specified mode.

2016-05-18  Jason Merrill  <jason@redhat.com>

	* pt.c (value_dependent_expression_p): Tweak new cases to better
	match the wording in the standard.

2016-05-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/69793
	* parser.c (cp_parser_template_id): Don't call cp_lexer_peek_nth_token
	when the previous cp_lexer_peek_token returns CPP_EOF.

2016-05-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70466
	* call.c (convert_like_real): Check that we are actually converting
	from an init list.

2016-05-16  Matthew Wahab  <matthew.wahab@arm.com>

	* decl.c (grokdeclarator): Remove errmsg and use of
	targetm.invalid_return_type.
	(grokparms): Remove errmsg and use of
	targetm.invalid_parameter_type.

2016-05-13  Jason Merrill  <jason@redhat.com>

	PR c++/10200
	PR c++/69753
	* pt.c (tsubst_decl): Use uses_template_parms.
	(instantiate_template_1): Handle non-dependent calls in templates.
	(value_dependent_expression_p): Handle BASELINK, FUNCTION_DECL.
	(type_dependent_expression_p): Only consider innermost template	args.
	(dependent_template_arg_p): Check enclosing class of a template here.
	(dependent_template_p): Not here.
	(type_dependent_object_expression_p): New.
	* typeck.c (finish_class_member_access_expr): Use it.
	* parser.c (cp_parser_postfix_expression): Use it.
	(cp_parser_postfix_dot_deref_expression): Use it.  Use comptypes
	to detect the current instantiation.
	(cp_parser_lookup_name): Really implement DR 141.
	* search.c (lookup_field_r): Prefer a dependent using-declaration.
	(any_dependent_bases_p): Split out from...
	* name-lookup.c (do_class_using_decl): ...here.
	* call.c (build_new_method_call_1): Use it.
	* semantics.c (finish_call_expr): 'this' doesn't make a call dependent.
	* tree.c (non_static_member_function_p): Remove.
	* typeck2.c (build_x_arrow): Use dependent_scope_p.

	* parser.c (cp_parser_postfix_dot_deref_expression): Use
	complete_type_or_else for unknown_type_node, too.

2016-05-12  Marek Polacek  <polacek@redhat.com>

	PR c/70756
	* call.c (build_new_op_1): Pass LOC to cp_build_modify_expr.
	* cp-tree.h (cp_build_modify_expr): Update declaration.
	(cxx_incomplete_type_error, cxx_incomplete_type_diagnostic): New inline
	overloads.
	* cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs): Pass INPUT_LOCATION to
	cp_build_modify_expr.
	* decl2.c (set_guard): Likewise.
	(handle_tls_init): Likewise.
	* init.c (perform_member_init): Likewise.
	(expand_virtual_init): Likewise.
	(build_new_1): Likewise.
	(build_vec_delete_1): Likewise.
	(get_temp_regvar): Likewise.
	(build_vec_init): Likewise.
	* method.c (do_build_copy_assign): Likewise.
	(assignable_expr): Likewise.
	* semantics.c (finish_omp_for): Likewise.
	* typeck.c (cp_build_binary_op): Pass LOCATION to pointer_diff and
	cp_pointer_int_sum.
	(cp_pointer_int_sum): Add location parameter.  Pass it down to
	pointer_int_sum.
	(pointer_diff): Add location parameter.  Use it.
	(build_modify_expr): Pass location down to cp_build_modify_expr.
	(cp_build_modify_expr): Add location parameter.  Use it.
	(build_x_modify_expr): Pass location down to cp_build_modify_expr.
	* typeck2.c (cxx_incomplete_type_diagnostic,
	cxx_incomplete_type_error): Add location parameter.

2016-05-11  Marek Polacek  <polacek@redhat.com>

	PR c++/71024
	* decl.c (duplicate_decls): Call diagnose_mismatched_decls.

2016-05-05  Jakub Jelinek  <jakub@redhat.com>

	* parser.c (cp_parser_selection_statement): For RID_SWITCH,
	pass if_p instead of NULL to cp_parser_implicitly_scoped_statement.

2016-05-04  Marek Polacek  <polacek@redhat.com>

	* parser.c (cp_parser_selection_statement): Replace OPT_Wparentheses
	with OPT_Wdangling_else.

2016-05-03  Martin Sebor  <msebor@redhat.com>

	PR c++/66561
	* tree.c (builtin_valid_in_constant_expr_p): Treat BUILT_IN_FILE,
	BUILT_IN_FUNCTION, and BUILT_IN_LINE as constant expressions.

2016-05-03  Marek Polacek  <polacek@redhat.com>

	PR c/70859
	* call.c (build_cxx_call): Pass location and vNULL down to
	check_builtin_function_arguments.

2016-05-03  Richard Biener  <rguenther@suse.de>

	* Make-lang.in (cc1plus-checksum.c): For stage-final re-use
	the checksum from the previous stage.

2016-05-02  David Malcolm  <dmalcolm@redhat.com>

	PR c++/62314
	* typeck.c (finish_class_member_access_expr): When
	giving a hint about a possibly-misspelled member name,
	add a fix-it replacement hint.

2016-05-02  Cesar Philippidis  <cesar@codesourcery.com>

	* cp-tree.h (finish_omp_clauses): Update prototype.
	* parser.c (cp_parser_oacc_all_clauses): Update call to
	finish_omp_clauses.
	(cp_parser_omp_all_clauses): Likewise.
	(cp_parser_omp_for_loop): Likewise.
	(cp_omp_split_clauses): Likewise.
	(cp_parser_oacc_cache): Likewise.
	(cp_parser_oacc_loop): Likewise.
	(cp_parser_omp_declare_target):
	(cp_parser_cilk_simd_all_clauses): Likewise.
	(cp_parser_cilk_for): Likewise.
	* pt.c (tsubst_omp_clauses): Replace allow_fields and declare_simd
	arguments with enum c_omp_region_type ort.
	(tsubst_omp_clauses): Update calls to finish_omp_clauses.
	(tsubst_omp_attribute): Update calls to tsubst_omp_clauses.
	(tsubst_omp_for_iterator): Update calls to finish_omp_clauses.
	(tsubst_expr): Update calls to tsubst_omp_clauses.
	* semantics.c (finish_omp_clauses): Replace bool arguments
	allow_fields, declare_simd, and is_cilk with bitmask ort.
	(finish_omp_for): Update call to finish_omp_clauses.

2016-05-02  David Malcolm  <dmalcolm@redhat.com>

	PR c++/62314
	* parser.c (cp_parser_class_head): Capture the start location;
	use it to emit a fix-it insertion hint when complaining
	about missing "template <> " in explicit specializations.

2016-05-02  Richard Sandiford  <richard.sandiford@arm.com>

	* init.c (build_new_1): Use shift operators instead of wi:: shifts.

2016-05-02  Richard Biener  <rguenther@suse.de>

	* decl.c (grokdeclarator): Properly insert a DECL_EXPR for
	anonymous VLAs.

2016-04-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/66644
	* class.c (check_field_decl): Remove final int* parameter, change
	the return type to bool; fix logic in order not to reject multiple
	initialized fields in anonymous struct.
	(check_field_decls): Adjust call.

2016-04-29  Cesar Philippidis  <cesar@codesourcery.com>

	PR middle-end/70626
	* parser.c (cp_parser_oacc_loop): Don't augment mask with
	OACC_LOOP_CLAUSE_MASK.
	(cp_parser_oacc_kernels_parallel): Update call to
	c_oacc_split_loop_clauses.

2016-04-28  Jason Merrill  <jason@redhat.com>

	Implement C++17 [[nodiscard]] attribute.
	PR c++/38172
	PR c++/54379
	* parser.c (cp_parser_std_attribute): Handle [[nodiscard]].
	* tree.c (handle_nodiscard_attribute): New.
	(cxx_attribute_table): Add [[nodiscard]].
	* cvt.c (cp_get_fndecl_from_callee, cp_get_callee_fndecl): New.
	(maybe_warn_nodiscard): New.
	(convert_to_void): Call it.

	* cvt.c (cp_get_callee): New.
	* constexpr.c (get_function_named_in_call): Use it.
	* cxx-pretty-print.c (postfix_expression): Use it.
	* except.c (check_noexcept_r): Use it.
	* method.c (check_nontriv): Use it.
	* tree.c (build_aggr_init_expr): Use it.
	* cp-tree.h: Declare it.

2015-04-27  Ryan Burn  <contact@rnburn.com>
	    Jeff Law  <law@redhat.com>

	PR c++/69024
	PR c++/68997
	* cp-gimplify.c (cp_gimplify_expr): Call cilk_cp_detect_spawn_and_unwrap
	instead of cilk_detect_spawn_and_unwrap.
	* cp-cilkplus.c (is_conversion_operator_function_decl_p): New.
	(find_spawn): New.
	(cilk_cp_detect_spawn_and_unwrap): New.
	* lambda.c: Include cp-cilkplus.h.
	* parser.c: Include cp-cilkplus.h.
	* cp-tree.h (cpp_validate_cilk_plus_loop): Move prototype into...
	* cp-cilkpus.h: New file.

2016-04-27  Nathan Sidwell  <nathan@acm.org>

	* constexpr.c (get_fundef_copy): Use the original function for
	non-recursive evaluations.
	(save_fundef_copy): Always expect a slot to be available.

2016-04-27  Bernd Schmidt  <bschmidt@redhat.com>

	* parser.c (cp_parser_postfix_expression): Call
	warn_for_memset instead of warning directly here.

2016-04-26  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70241
	* decl.c (build_enumerator): Set current_access_specifier when
	declaring an enumerator belonging to an in-class enumeration.
	* parser.c (cp_parser_check_access_in_redecleration): Also
	consider in-class enumerations.

2016-04-26  Marek Polacek  <polacek@redhat.com>

	PR c++/70744
	* call.c (build_conditional_expr_1): Call cp_stabilize_reference
	instead of stabilize_reference.
	(build_over_call): Likewise.
	* cp-tree.h (cp_stabilize_reference): Declare.
	* tree.c (cp_stabilize_reference): New function.
	* typeck.c (cp_build_unary_op): Call cp_stabilize_reference instead of
	stabilize_reference.
	(unary_complex_lvalue): Likewise.
	(cp_build_modify_expr): Likewise.

2016-04-26  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/70704
	* pt.c (build_non_dependent_expr): Use flag_checking > 1 instead of
	just flag_checking.

2016-04-25  Jason Merrill  <jason@redhat.com>

	* tree.c (std_attribute_table): New.
	(init_tree): Register it.

2016-04-22  Jason Merrill  <jason@redhat.com>

	* parser.c (cp_parser_perform_range_for_lookup): Decay the array.

2016-04-21  Patrick Palka  <ppalka@gcc.gnu.org>

	* name-lookup.c (free_saved_scope): New free list of saved_scope
	structures.
	(push_to_top_level): Attempt to reuse a saved_scope struct
	from free_saved_scope instead of allocating a new one each time.
	(pop_from_top_level_1): Chain the now-unused saved_scope structure
	onto free_saved_scope.

2016-04-21  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70540
	* semantics.c (process_outer_var_ref): Unconditionally return
	error_mark_node when mark_used returns false.

2016-04-21  Marek Polacek  <polacek@redhat.com>

	PR c++/70513
	* parser.c (cp_parser_enum_specifier): Check and possibly error for
	extra qualification.

2016-04-20  Nathan Sidwell  <nathan@acm.org>

	PR c++/55635
	* init.c (build_vec_delete_1): Protect operator delete call in try
	finally.
	(build_delete): Likewise.
	* optimize.c (build_delete_destructor_body): Likewise.

2016-04-20  Ilya Verbin  <ilya.verbin@intel.com>

	PR c++/69363
	* cp-tree.h (finish_omp_clauses): Add new default argument.
	* parser.c (cp_parser_cilk_simd_all_clauses): Use finish_omp_clauses
	instead of c_finish_cilk_clauses.
	* semantics.c (finish_omp_clauses): Add new argument.  Allow
	floating-point variables in the linear clause for Cilk Plus.

2016-04-20  Nathan Sidwell  <nathan@acm.org>

	* semantics.c (finish_compound_lteral): Don't wrap VECTOR_TYPEs in a
	TARGET_EXPR.

2016-04-19  Jason Merrill  <jason@redhat.com>

	PR c++/66543
	* expr.c (mark_exp_read): Handle NON_DEPENDENT_EXPR.
	* pt.c (make_pack_expansion): Call mark_exp_read.
	* semantics.c (finish_id_expression): Call mark_type_use in
	unevaluated context.

	DR 2137
	* call.c (implicit_conversion): If we choose a copy constructor
	for list-initialization from the same type, the conversion is an
	exact match.

	* constexpr.c (breaks): Handle EXIT_EXPR.
	(cxx_eval_loop_expr): Handle COMPOUND_EXPR body.
	(cxx_eval_constant_expression): Handle EXIT_EXPR, improve handling
	of COMPOUND_EXPR.

	PR c++/68206
	PR c++/68530
	* constexpr.c (potential_constant_expression_1): Handle LOOP_EXPR
	and GOTO_EXPR.

	* pt.c (tsubst_expr): Remove shadowing declaration.
	(tsubst_pack_expansion): Add assert.

	* semantics.c (add_decl_expr): Use DECL_SOURCE_LOCATION.

	PR c++/70522
	* name-lookup.c (qualified_lookup_using_namespace): Look through
	hidden names.

2016-04-18  Michael Matz  <matz@suse.de>

	* class.c (build_vtable): Use SET_DECL_ALIGN and SET_TYPE_ALIGN.
	(layout_class_type): Ditto.
	(build_base_field): Use SET_DECL_ALIGN.
	(fixup_attribute_variants): Use SET_TYPE_ALIGN.
	* decl.c (duplicate_decls): Use SET_DECL_ALIGN.
	(record_unknown_type): Use SET_TYPE_ALIGN.
	(cxx_init_decl_processing): Ditto.
	(copy_type_enum): Ditto.
	(grokfndecl): Use SET_DECL_ALIGN.
	(copy_type_enum): Use SET_TYPE_ALIGN.
	* pt.c (instantiate_class_template_1): Use SET_TYPE_ALIGN.
	(tsubst): Ditto.
	* tree.c (cp_build_qualified_type_real): Use SET_TYPE_ALIGN.
	* lambda.c (maybe_add_lambda_conv_op): Use SET_DECL_ALIGN.
	* method.c (implicitly_declare_fn): Use SET_DECL_ALIGN.
	* rtti.c (emit_tinfo_decl): Ditto.

2016-04-18  Jason Merrill  <jason@redhat.com>

	PR c++/70690
	PR c++/70528
	* class.c (type_maybe_constexpr_default_constructor): New.
	(type_has_constexpr_default_constructor): Revert.

2016-04-16  Sandra Loosemore  <sandra@codesourcery.com>

	PR target/1078

	* tree.c (cxx_attribute_table): Remove "com_interface" entry.
	(handle_com_interface_attribute): Delete.

2016-04-15  Jason Merrill  <jason@redhat.com>

	PR c++/70685
	* constexpr.c (get_fundef_copy): Handle null *slot.

	PR c++/70505
	* pt.c (tsubst_baselink): Give the new TEMPLATE_ID_EXPR
	unknown_type_node, too.

2016-04-15  Jason Merrill  <jason@redhat.com>
	    Nathan Sidwell  <nathan@acm.org>

	PR c++/70594
	* constexpr.c (constexpr_call_table): Preserve in GC.
	(struct fundef_copy, struct fundef_copies_table_t):	Delete.
	(fundef_copies_table): Preserve in GC. Change to pointer to
	tree->tree hash.
	(maybe_initialize_fundef_copies_table): Adjust.
	(get_fundef_copy): Return a TREE_LIST.  Use non-inserting search.
	(save_fundef_copy): Adjust for a TREE_LIST.
	(cxx_eval_call_expression): Adjust for a fundef_copy TREE_LIST.
	(fini_constexpr): New.
	* cp-tree.h (fini_constexpr): Declare.
	* decl2.c (c_parse_final_cleanups): Call fini_constexpr.

2016-04-15  Jakub Jelinek  <jakub@redhat.com>

	PR c/70436
	* parser.c (cp_parser_pragma): Add IF_P argument, pass it down
	where needed.
	(cp_parser_declaration_seq_opt, cp_parser_member_specification_opt,
	cp_parser_objc_interstitial_code, cp_parser_omp_declare_simd,
	cp_parser_oacc_routine): Adjust cp_parser_pragma callers.
	(cp_parser_statement): Likewise.  Adjust cp_parser_cilk_for caller.
	(cp_parser_omp_structured_block): Add IF_P argument, pass it down to
	cp_parser_statement.
	(cp_parser_oacc_data, cp_parser_oacc_host_data, cp_parser_oacc_loop,
	cp_parser_oacc_kernels_parallel, cp_parser_omp_critical,
	cp_parser_omp_simd, cp_parser_omp_for, cp_parser_omp_master,
	cp_parser_omp_ordered, cp_parser_omp_parallel, cp_parser_omp_single,
	cp_parser_omp_task, cp_parser_omp_taskgroup, cp_parser_omp_distribute,
	cp_parser_omp_teams, cp_parser_omp_target_data, cp_parser_omp_target,
	cp_parser_omp_taskloop, cp_parser_omp_construct,
	cp_parser_cilk_grainsize, cp_parser_cilk_simd, cp_parser_cilk_for):
	Add IF_P argument, pass it down where needed.
	(cp_parser_omp_for_loop): Likewise.  Clear IF_P if nbraces.
	(cp_parser_omp_sections_scope): Adjust cp_parser_omp_structured_block
	calls.

2016-04-14  Jason Merrill  <jason@redhat.com>

	PR c++/70494
	* decl.c (cxx_maybe_build_cleanup): Handle non-decls.
	* typeck2.c (split_nonconstant_init_1): Use it.

	PR c++/70528
	* class.c (type_has_constexpr_default_constructor): Return true
	for an implicitly declared constructor.

	PR c++/70622
	* parser.c (cp_parser_init_declarator): Add auto_result parm.
	(cp_parser_simple_declaration): Pass it.
	(strip_declarator_types): New.

	PR c++/70543
	* pt.c (value_dependent_expression_p) [VAR_DECL]: A type-dependent
	initializer also makes the variable value-dependent.

	PR c++/70648
	* constexpr.c (cxx_eval_store_expression): Also copy
	CONSTRUCTOR_NO_IMPLICIT_ZERO.

2016-04-14  Martin Sebor  <msebor@redhat.com>

	PR c++/69517
	PR c++/70019
	PR c++/70588
	* cp-tree.h, decl.c, init.c, typeck2.c: Revert.

2016-04-14  Jason Merrill  <jason@redhat.com>

	* call.c, decl.c, error.c, cp-tree.h, decl.c: Revert empty
	parameter ABI change.

2016-04-13  Martin Sebor  <msebor@redhat.com>

	PR c++/69517
	PR c++/70019
	PR c++/70588
	* cp-tree.h (throw_bad_array_length, build_vla_check): Declare new
	functions.
	* decl.c (check_initializer, cp_finish_decl): Call them.
	(reshape_init_r): Reject incompletely braced intializer-lists
	for VLAs.
	* init.c (throw_bad_array_length, build_vla_check)
	(build_vla_size_check, build_vla_init_check): Define new functions.
	* typeck2.c (split_nonconstant_init_1): Use variably_modified_type_p()
	to detect a VLA.
	(store_init_value): Same.

2016-04-13  Jason Merrill  <jason@redhat.com>

	Warn about empty parameter ABI with -Wabi=9.
	* call.c (empty_class_msg, mark_for_abi_warning)
	(warn_empty_class_abi): New.
	(build_call_a): Use them.
	* decl.c (store_parm_decls): Use mark_for_abi_warning.
	* error.c (pp_format_to_string): New.

	Pass empty class parameters like C.
	* call.c (pass_as_empty_struct, empty_class_arg): New.
	(type_passed_as, build_x_va_arg): Use pass_as_empty_struct.
	(build_call_a): Use empty_class_arg.
	* cp-tree.h (CPTI_EMPTY_STRUCT, empty_struct_type): New.
	* decl.c (cxx_init_decl_processing): Create empty_struct_type.

2016-04-13  Jason Merrill  <jason@redhat.com>

	PR c++/70627
	* decl.c (start_enum): Don't change an existing ENUM_UNDERLYING_TYPE.

2016-04-13  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70635
	* pt.c (resolve_typename_type): Fix typos in infinite recursion
	avoidance mechanism.

2016-04-13  Jason Merrill  <jason@redhat.com>

	PR c++/70634
	* pt.c (instantiation_dependent_uneval_expression_p): Split out
	from instantiation_dependent_expression_p.
	(value_dependent_expression_p): Use it for unevaluated operands.
	(instantiation_dependent_r): Don't check value-dependence.
	(instantiation_dependent_expression_p): Check
	value-dependence of the expression as a whole.
	* cp-tree.h: Declare instantiation_dependent_uneval_expression_p.
	* semantics.c (finish_decltype_type): Use it.

	* constexpr.c (potential_nondependent_constant_expression): New.
	(potential_nondependent_static_init_expression): New.
	(maybe_constant_value_1, fold_non_dependent_expr)
	(maybe_constant_init): Use them.
	* pt.c (instantiate_non_dependent_expr_sfinae)
	(instantiate_non_dependent_or_null, convert_nontype_argument): Use
	them.
	* cp-tree.h: Declare them.

2016-04-13  Jakub Jelinek  <jakub@redhat.com>

	PR c++/70594
	* decl.c (pop_labels_1): Removed.
	(note_label, sort_labels): New functions.
	(pop_labels): During named_labels traversal, just push the slot
	pointers into a vector, then qsort it by DECL_UID and only then
	call pop_label and chain it into BLOCK_VARS.

2016-04-13  Jason Merrill  <jason@redhat.com>

	PR c++/70615
	* cp-gimplify.c (cp_genericize_r): Expand PTRMEM_CST here.
	(cp_gimplify_expr): Not here.

2016-04-12  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70610
	* tree.c (lvalue_kind) [NON_DEPENDENT_EXPR]: Unconditionally
	recurse into it.
	* typeck.c (build_x_conditional_expr): Unconditionally remember
	that the result is an lvalue or xvalue.

2016-04-12  Jason Merrill  <jason@redhat.com>

	* class.c (is_really_empty_class): A zero-length array is empty.
	An unnamed bit-field doesn't make a class non-empty.

2016-04-12  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/68722
	* parser.c (cp_parser_cache_defarg): When file ends in default
	argument simply return error_mark_node.

2016-04-12  Nathan Sidwell  <nathan@acm.org>

	PR c++/70501
	* constexpr.c (cxx_eval_bare_aggregate): Handle VECTOR_TYPE
	similarly to PMF.

2016-04-11  Jason Merrill  <jason@redhat.com>

	* mangle.c (decl_is_template_id): The template itself counts as a
	template-id.

2016-04-08  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70590
	PR c++/70452
	* constexpr.c (cxx_eval_outermost_expression): Call unshare_expr
	on the result if it's not a CONSTRUCTOR.

2016-04-07  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70452
	* constexpr.c (find_constructor): New function.
	(unshare_constructor): New function.
	(cxx_eval_call_expression): Use unshare_constructor instead of
	unshare_expr.
	(find_array_ctor_elt): Likewise.
	(cxx_eval_vec_init_1): Likewise.
	(cxx_eval_store_expression): Likewise.
	(cxx_eval_constant_expression): Likewise.

2016-04-06  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c/70436
	* cp-tree.h (FOR_EACH_CLONE): Restructure macro to avoid
	potentially generating a future -Wparentheses warning in its
	callers.

2016-04-06  Jason Merrill  <jason@redhat.com>

	* class.c (check_abi_tags): Fix function template handling.

2016-04-05  Nathan Sidwell  <nathan@acm.org>

	PR c++/70512
	* class.c (fixup_may_alias): New.
	(fixup_attribute_variants): Call it.

2016-04-05  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70452
	* constexpr.c (struct fundef_copy): New struct.
	(struct fundef_copies_table_t): New struct.
	(fundef_copies_table): New static variable.
	(maybe_initialize_fundef_copies_table): New static function.
	(get_fundef_copy): New static function.
	(save_fundef_copy): New static function.
	(cxx_eval_call_expression): Use get_fundef_copy, and
	save_fundef_copy.
	(constexpr_call_table): Add "deletable" GTY marker.

2016-04-05  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70452
	* cp-tree.h (class cache_map): Remove.
	* constexpr.c (cv_cache): Change type to
	GTY((deletable)) hash_map<tree, tree> *.
	(maybe_constant_value): Adjust following the change to cv_cache.
	(clear_cv_cache): New static function.
	(clear_cv_and_fold_caches): Use it.
	* cp-gimplify.c (fold_cache): Change type to
	GTY((deletable)) hash_map<tree, tree> *.
	(clear_fold_cache): Adjust following the change to fold_cache.
	(cp_fold): Likewise.

2016-04-02  Martin Sebor  <msebor@redhat.com>

	PR c++/67376
	PR c++/70170
	PR c++/70172
	PR c++/70228
	* constexpr.c (diag_array_subscript): New function.
	(cxx_eval_array_reference): Detect out of bounds array indices.

2016-04-01  Jason Merrill  <jason@redhat.com>

	PR c++/70449
	PR c++/70344
	* pt.c (instantiate_decl): A function isn't fully defined if
	DECL_INITIAL is error_mark_node.
	* constexpr.c (cxx_eval_call_expression): Likewise.

2016-04-01  Jakub Jelinek  <jakub@redhat.com>
	    Marek Polacek  <polacek@redhat.com>

	PR c++/70488
	* init.c (warn_placement_new_too_small): Test whether
	DECL_SIZE_UNIT or TYPE_SIZE_UNIT are integers that fit into uhwi.

2016-04-01  Nathan Sidwell  <nathan@acm.org>

	PR c++/68475
	* decl.c (check_redeclaration_exception_specification): Check
	regardless of -fno-exceptions.
	* typeck2.c (merge_exception_specifiers): Relax assert by checking
	flag_exceptions too.

2016-03-31  Nathan Sidwell  <nathan@acm.org>

	* decl.c (start_preparsed_function): Remove unnecessary bracing.
	(finish_destructor_body): Don't emit operator delete here.

2016-03-31  Nathan Sidwell  <nathan@acm.org>

	PR c++/70393
	* constexpr.c (cxx_eval_store_expression): Keep CONSTRUCTOR
	elements in field order.

2016-03-31  Marek Polacek  <polacek@redhat.com>

	PR c/70297
	* decl.c (duplicate_decls): Also set TYPE_ALIGN and TYPE_USER_ALIGN.

2016-03-31  Richard Biener  <rguenther@suse.de>

	PR c++/70430
	* typeck.c (cp_build_binary_op): Fix operand order of vector
	conditional in truth op handling.

2016-03-29  Jason Merrill  <jason@redhat.com>

	PR c++/70353
	* decl.c (make_rtl_for_nonlocal_decl): Don't defer local statics
	in constexpr functions.

2016-03-28  Jason Merrill  <jason@redhat.com>

	PR c++/70422
	PR c++/64266
	PR c++/70353
	* decl.c, pt.c, constexpr.c: Revert last patch.

2016-03-25  Jason Merrill  <jason@redhat.com>
	    Martin Liška  <mliska@suse.cz>

	PR c++/64266
	PR c++/70353
	Core issue 1962
	* decl.c (cp_fname_init): Decay the initializer to pointer.
	(cp_make_fname_decl): Set DECL_DECLARED_CONSTEXPR_P,
	DECL_VALUE_EXPR, DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P.
	Don't call cp_finish_decl.
	* pt.c (tsubst_expr) [DECL_EXPR]: Set DECL_VALUE_EXPR,
	DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P.  Don't call cp_finish_decl.
	* constexpr.c (cxx_eval_constant_expression) [VAR_DECL]:
	Handle DECL_VALUE_EXPR.

2016-03-24  Jason Merrill  <jason@redhat.com>

	PR c++/70386
	* constexpr.c (cxx_eval_bare_aggregate): Handle PMFs.

	PR c++/70323
	* constexpr.c (cxx_eval_call_expression): Don't cache result if
	*overflow_p.

2016-03-24  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/62212
	* tree.c (build_cplus_array_type): Determine type-dependentess
	with uses_template_parms instead of with dependent_type_p.

2016-03-23  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70347
	* typeck.c (process_init_constructor_union): If the initializer
	is empty, use the union's NSDMI if it has one.

2016-03-23  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70332
	* pt.c (tsubst_copy) [PARM_DECL]: Handle the use of 'this' in an
	NSDMI that's part of an aggregrate initialization.

2016-03-23  Jakub Jelinek  <jakub@redhat.com>

	PR c++/70001
	* constexpr.c (cxx_eval_vec_init_1): Reuse CONSTRUCTOR initializers
	for 1..max even for multi-dimensional arrays.  Call unshare_expr
	on it.

	PR c++/70323
	* constexpr.c (cxx_eval_constant_expression): Diagnose overflow
	on TREE_OVERFLOW constants.

	PR c++/70376
	* cp-gimplify.c (genericize_omp_for_stmt): Don't walk OMP_FOR_CLAUSES
	for OMP_TASKLOOP here.
	(cp_genericize_r): Handle OMP_TASKLOOP like OMP_TASK, except do call
	genericize_omp_for_stmt instead of cp_walk_tree on OMP_BODY.

2016-03-23  Alexandre Oliva  <aoliva@redhat.com>
	    Jason Merrill  <jason@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>

	PR c++/69315
	* cp-tree.h (defer_mark_used_calls, deferred_mark_used_calls): Remove.
	* decl.c (defer_mark_used_calls, deferred_mark_used_calls): Remove.
	(finish_function): Don't set or test them.
	* decl2.c (mark_used): Don't handle defer_mark_used_calls.

2016-03-23  Jason Merrill  <jason@redhat.com>

	PR c++/70344
	* constexpr.c (cxx_eval_call_expression): Catch invalid recursion.

2016-03-23  Marek Polacek  <polacek@redhat.com>

	PR c++/69884
	* pt.c (canonicalize_type_argument): Use OPT_Wignored_attributes.

2016-03-22  Ilya Enkovich  <enkovich.gnu@gmail.com>

	* call.c (build_conditional_expr_1): Always use original
	condition type for vector type checks and build.

2016-03-22  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70096
	* pt.c (tsubst_decl): Clear the DECL_MODE of the new decl.

2016-03-22  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70204
	* constexpr.c (non_const_var_error): Check
	DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P.

2016-03-21  Richard Henderson  <rth@redhat.com>

	PR c++/70273
        * decl.c (notice_forced_label_r): New.
        (cp_finish_decl): Use it.

2016-03-21  Jason Merrill  <jason@redhat.com>

	PR c++/70285
	* cp-gimplify.c (cp_fold) [COND_EXPR]: Handle bit-fields.

2016-03-18  Jason Merrill  <jason@redhat.com>

	PR c++/70139
	* constexpr.c (cxx_eval_call_expression): Fix trivial copy.

	PR c++/70147
	* class.c (vptr_via_virtual_p): New.
	(most_primary_binfo): Factor out of build_rtti_vtbl_entries.
	* cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs): Don't clear
	a vptr from any virtual base in a not-in-charge 'structor.

	* decl.c (build_clobber_this): Factor out of
	start_preparsed_function and begin_destructor_body.  Handle
	virtual bases better.

	* class.c (build_if_in_charge): Split out from build_base_path.
	* init.c (expand_virtual_init, expand_default_init): Use it.
	* call.c (build_special_member_call): Use it.

2016-03-18  Jakub Jelinek  <jakub@redhat.com>

	PR c++/70267
	* init.c (build_new_1): Complain and return error_mark_node
	if alloc_fn is not _Jv_AllocObject function returning pointer.

2016-03-18  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70205
	* search.c (adjust_result_of_qualified_name_lookup): Don't
	update the BASELINK_BINFO of DECL if the second call
	to lookup_base fails.

2016-03-18  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70218
	* parser.c (cp_parser_lambda_expression): Move call to
	pop_deferring_access_checks ahead of the call to
	cp_parser_end_tentative_firewall.

2016-03-17  Jakub Jelinek  <jakub@redhat.com>

	PR c++/70144
	* cp-tree.h (magic_varargs_p): Return int instead of bool.
	* call.c (magic_varargs_p): Return int instead of bool, return 2 for
	Cilk+ reductions, otherwise 1 for magic varargs and 0 for normal
	varargs.
	(build_over_call): If magic_varargs_p == 2, call reject_gcc_builtin,
	if magic_varargs_p == 1, call decay_conversion
	instead of mark_type_use.  Don't store error_mark_node arguments to
	argarray, instead return error_mark_node.

	PR c++/70272
	* decl.c (begin_destructor_body): Don't insert clobber if
	is_empty_class (current_class_type).

2016-03-17  Marek Polacek  <polacek@redhat.com>

	PR c++/70194
	* typeck.c (warn_for_null_address): New function.
	(cp_build_binary_op): Call it.

2016-03-16  Jason Merrill  <jason@redhat.com>

	PR c++/70259
	* decl.c (start_preparsed_function): Don't clobber an empty base.

2016-03-16  Jakub Jelinek  <jakub@redhat.com>

	PR c++/70147
	* cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs): Conditionalize
	BINFO_VIRTUAL_P vtable clearing on current_in_charge_parm.

	PR c++/70147
	* cp-ubsan.c (cp_ubsan_maybe_initialize_vtbl_ptrs): Temporarily
	set in_base_initializer.

2016-03-15  Marek Polacek  <polacek@redhat.com>

	PR c++/70209
	* tree.c (strip_typedefs): Call strip_typedefs again on the
	DECL_ORIGINAL_TYPE result.

2016-03-15  Jason Merrill  <jason@redhat.com>

	PR c++/70095
	* pt.c (instantiate_decl): Fix call to variable_template_p.

	PR c++/70141
	* pt.c (for_each_template_parm_r): Always walk into TYPENAME_TYPE.

2016-03-14  Casey Carter  <casey@carter.net>
	    Jason Merrill  <jason@redhat.com>

	P0184R0: Generalizing the Range-Based For Loop
	* parser.c (cp_convert_range_for): Set the type of __end separately.
	(cp_parser_perform_range_for_lookup): Allow different begin/end
	types if they are comparable.

2016-03-12  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70106
	* semantics.c (force_paren_expr): Just build a PAREN_EXPR when
	processing_template_decl and EXPR is a SCOPE_REF.

2016-03-10  Patrick Palka  <ppalka@gcc.gnu.org>
	    Jakub Jelinek  <jakub@redhat.com>

	PR c++/70001
	* constexpr.c (cxx_eval_vec_init_1): For pre_init case, reuse
	return value from cxx_eval_constant_expression from earlier
	elements if it is valid constant initializer requiring no
	relocations.

2016-03-10  Marek Polacek  <polacek@redhat.com>

	PR c++/70153
	* cp-gimplify.c (cp_fold): Handle UNARY_PLUS_EXPR.

2016-03-09  Cesar Philippidis  <cesar@codesourcery.com>

	* parser.c (cp_parser_oacc_loop): Update cclauses and clauses
	when calling c_finish_omp_clauses.

2016-03-08  Jason Merrill  <jason@redhat.com>

	* parser.c (cp_parser_diagnose_invalid_type_name): Give helpful
	diagnostic for use of "concept".
	(cp_parser_requires_clause_opt): And "requires".
	(cp_parser_type_parameter, cp_parser_late_return_type_opt)
	(cp_parser_explicit_template_declaration): Adjust.
	* Make-lang.in (check-c++-all): Add "concepts" to std list.

	P0036R0: Unary Folds and Empty Parameter Packs
	* pt.c (expand_empty_fold): Remove special cases for *,+,&,|.

2016-03-08  Jakub Jelinek  <jakub@redhat.com>

	PR c++/70135
	* constexpr.c (cxx_eval_loop_expr): Forget saved values of SAVE_EXPRs
	even after the last iteration of the loop.

	* decl.c (duplicate_decls): Fix spelling - becuase -> because.

2016-03-07  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/66786
	* pt.c (get_template_info): Handle PARM_DECL.
	(template_class_depth): Check DECL_P instead of
	VAR_OR_FUNCTION_DECL_P.

2016-03-05  Jason Merrill  <jason@redhat.com>

	PR c++/67364
	* constexpr.c (cxx_eval_store_expression): Replace
	CONSTRUCTOR_ELTS in nested CONSTRUCTORs, too.

2016-03-05  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/66786
	* pt.c (template_class_depth): Given a lambda type, iterate
	into its LAMBDA_TYPE_EXTRA_SCOPE field instead of its
	TYPE_CONTEXT.  Given a VAR_DECL, iterate into its
	CP_DECL_CONTEXT.

2016-03-04  Jason Merrill  <jason@redhat.com>

	PR c++/69203
	* cp-tree.h (COND_EXPR_IS_VEC_DELETE): New.
	* init.c (build_vec_delete_1): Set it.
	* constexpr.c (potential_constant_expression_1) [COND_EXPR]: Check it.

2016-03-04  Jakub Jelinek  <jakub@redhat.com>

	* decl.c (start_preparsed_function): Don't emit start clobber at the
	start of constructor clones.

	PR c++/70035
	* cp-tree.h (cp_ubsan_maybe_initialize_vtbl_ptrs): New prototype.
	* decl.c (start_preparsed_function): Call
	cp_ubsan_maybe_initialize_vtbl_ptrs if needed.
	* cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs,
	cp_ubsan_maybe_initialize_vtbl_ptrs): New functions.

2016-03-04  Jason Merrill  <jason@redhat.com>

	PR c++/67364
	* constexpr.c (cxx_eval_component_reference): Further tweak.

	* constexpr.c (struct constexpr_ctx): Add save_exprs field.
	(cxx_eval_loop_expr): Discard SAVE_EXPR values before looping.
	(cxx_eval_constant_expression) [SAVE_EXPR]: Add it to the set.
	(cxx_eval_outermost_constant_expr, is_sub_constant_expr): Initialize.

	PR c++/70067
	* tree.c (strip_typedefs): Handle TYPENAME_TYPE lookup finding the
	same type.

2016-03-03  Jason Merrill  <jason@redhat.com>

	* method.c (synthesized_method_walk): operator= can also be constexpr.

	* pt.c (tsubst_copy_and_build) [LAMBDA_EXPR]: Get
	LAMBDA_EXPR_RETURN_TYPE from the instantiated closure.

	PR c++/67164
	* pt.c (copy_template_args): New.
	(tsubst_pack_expansion): Use it.

	* call.c (build_aggr_conv): Use get_nsdmi.

	PR c++/51406
	* typeck.c (build_static_cast_1): Avoid folding back to lvalue.

	PR c++/67364
	* constexpr.c (cxx_eval_component_reference): Just return an empty
	CONSTRUCTOR for an empty class.

2016-03-01  Jason Merrill  <jason@redhat.com>

	PR c++/70036
	* parser.c (cp_parser_requires_clause): Call
	check_for_bare_parameter_packs.

	PR c++/51489
	* constexpr.c (cxx_eval_binary_expression): Don't VERIFY_CONSTANT
	the operands.

	PR c++/69995
	* constexpr.c (cxx_eval_call_expression): Unshare arg.
	(cxx_eval_constant_expression) [DECL_EXPR]: Unshare init.
	[TARGET_EXPR]: Unshare init.

2016-03-01  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/68948
	PR c++/69961
	* pt.c (tsubst_baselink): Reinstate the check for an invalid
	constructor call.

2016-02-28  Jason Merrill  <jason@redhat.com>

	PR c++/69995
	* constexpr.c (cxx_eval_store_expression): Unshare init.

2016-02-26  Jason Merrill  <jason@redhat.com>

	PR c++/69958
	* pt.c (make_argument_pack): New.
	(tsubst_copy) [SIZEOF_EXPR]: Handle partial expansion.
	(tsubst_copy_and_build): Likewise.

2016-02-25  Jason Merrill  <jason@redhat.com>

	PR c++/69889
	* cp-tree.h (AGGR_INIT_FROM_THUNK_P): New.
	* tree.c (build_aggr_init_expr): Set it.
	* semantics.c (simplify_aggr_init_expr): Check it.
	* cp-gimplify.c (cp_genericize_r): Don't walk into
	a call/aggr_init from a thunk.

	PR c++/69842
	* method.c (forward_parm): Handle parameter packs.
	* lambda.c (maybe_add_lambda_conv_op): Use it for them.

	PR c++/67364
	* constexpr.c (cxx_eval_component_reference): Don't complain about
	unevaluated empty classes.

	PR c++/68049
	* tree.c (strip_typedefs): Use DECL_ORIGINAL_TYPE.

2016-02-25  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/69736
	* cp-tree.h (REF_PARENTHESIZED_P): Adjust documentation.
	(maybe_undo_parenthesized_ref): Declare.
	* semantics.c (maybe_undo_parenthesized_ref): Split out from
	check_return_expr.
	(finish_call_expr): Use it.
	* typeck.c (check_return_expr): Use it.
	* pt.c (tsubst_copy_and_build) [INDIRECT_REF]: Retain the
	REF_PARENTHESIZED_P flag.

2016-02-24  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69922
	* class.c (build_base_path): Set TREE_NO_WARNING on the null_test.
	Avoid folding it.
	* init.c (build_vec_delete_1, build_delete): Don't fold the non-NULL
	tests.
	* cp-gimplify.c (cp_fold): For TREE_NO_WARNING comparisons with NULL,
	unless they are folded into INTEGER_CST, error_mark_node or some
	comparison with NULL, avoid folding them and use either the original
	comparison or non-folded comparison of folded arguments.
	* cp-ubsan.c (cp_ubsan_instrument_vptr): Set TREE_NO_WARNING on the
	comparison, don't fold the comparison right away.

2016-02-24  Jason Merrill  <jason@redhat.com>

	PR c++/69323
	* friend.c (make_friend_class): Likewise.
	* decl.c (lookup_and_check_tag): Diagnose invalid dependent friend.

2016-02-24  Jason Merrill  <jason@redhat.com>

	PR c++/69323
	* pt.c (instantiate_class_template_1): Set
	processing_template_decl before substituting friend_type.

016-02-24  Martin Sebor  <msebor@redhat.com>

	PR c++/69912
	* tree.c (build_ctor_subob_ref): Compare types' main variants
	instead of the types as they are.

2016-02-24  Jason Merrill  <jason@redhat.com>

	* decl.c (start_preparsed_function): Condition ctor clobber on
	flag_lifetime_dse > 1.

	* cp-gimplify.c (cp_fold): Don't fold constexpr calls if -fno-inline.

2016-02-19  Jason Merrill  <jason@redhat.com>

	PR c++/69743
	* call.c (remaining_arguments): No longer static.
	* cp-tree.h: Declare it.
	* pt.c (more_specialized_fn): Use it.

2016-02-19  Jakub Jelinek  <jakub@redhat.com>
	    Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* Make-lang.in: Invoke gperf with -L C++.
	* cfns.gperf: Remove prototypes for hash and libc_name_p
	inlines.
	* cfns.h: Regenerated.
	* except.c (nothrow_libfn_p): Adjust.

2016-02-19  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69850
	* rtti.c (ifnonnull): Set TREE_NO_WARNING on the condition, use
	NE_EXPR instead of EQ_EXPR and swap last two arguments on COND_EXPR.

2016-02-19  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/68948
	* pt.c (tsubst_baselink): Don't diagnose an invalid constructor
	call here.
	* semantics.c (finish_call_expr): Don't assume a constructor
	call is dependent if only the "this" pointer is dependent.  When
	building a constructor call, always use a dummy object.

2016-02-19  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69850
	* init.c (build_vec_delete_1): Set TREE_NO_WARNING on the NE_EXPR
	condition.
	* cp-gimplify.c (cp_fold): Propagate TREE_NO_WARNING from binary
	operators if folding preserved the binop, just with different
	arguments.

	PR c++/67767
	* parser.c (cp_parser_std_attribute_spec_seq): Don't assume
	attr_spec is always single element chain, chain all the attributes
	properly together in the right order.

2016-02-18  Jason Merrill  <jason@redhat.com>

	* mangle.c (maybe_check_abi_tags): Add for_decl parm.  Call
	mangle_decl.
	(mangle_decl): Call maybe_check_abi_tags for function scope.
	(mangle_guard_variable): Call maybe_check_abi_tags here.
	(write_guarded_var_name): Not here.

2016-02-17  Jason Merrill  <jason@redhat.com>

	PR c++/65985
	* constexpr.c (build_constexpr_constructor_member_initializers):
	Handle an additional STATEMENT_LIST.

	PR c++/68585
	* constexpr.c (cxx_eval_bare_aggregate): Fix 'changed' detection.

	PR c++/68679
	* decl2.c (reset_type_linkage_2): Look through member templates.

2016-02-17  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69850
	* init.c (build_delete): Set TREE_NO_WARNING on ifexp.

2016-02-17  Jason Merrill  <jason@redhat.com>

	PR c++/69842
	* method.c (forward_parm): Split out from...
	(add_one_base_init): ...here.
	* lambda.c (maybe_add_lambda_conv_op): Use it.

2016-02-16  Jason Merrill  <jason@redhat.com>

	PR c++/10200
	PR c++/69753
	* call.c, cp-tree.h, name-lookup.c, pt.c, search.c, semantics.c,
	tree.c, typeck2.c: Revert earlier changes.
	* parser.c (cp_parser_lookup_name): Ignore namespace-scope
	non-type templates after -> or .

2016-02-16  Jakub Jelinek  <jakub@redhat.com>

	PR c/69835
	* typeck.c (cp_build_binary_op): Revert 2015-09-09 change.

2016-02-16  Jason Merrill  <jason@redhat.com>

	PR c++/69657
	* name-lookup.c (lookup_qualified_name): Add find_hidden parm.
	(set_decl_namespace): Pass it.  Complain about finding a hidden friend.
	* name-lookup.h: Adjust.

2016-02-16  James Norris  <jnorris@codesourcery.com>

	* parser.c (cp_parser_oacc_data_clause_deviceptr): Remove checking.
	* semantics.c (finish_omp_clauses): Add deviceptr checking.

2016-02-15  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69658
	* init.c (expand_default_init): Only call reshape_init
	in the direct-initialization from an initializer list case.

2016-02-15  Jason Merrill  <jason@redhat.com>

	PR c++/69753
	* semantics.c (finish_call_expr): Implicit 'this' does not make
	the call dependent.
	* search.c (any_dependent_bases_p): Split out...
	* name-lookup.c (do_class_using_decl): ...from here.
	* call.c (build_new_method_call_1): Don't complain about missing object
	if there are dependent bases.  Tweak error.
	* tree.c (non_static_member_function_p): Remove.
	* pt.c (type_dependent_expression_p): A member template of a
	dependent type is dependent.
	* cp-tree.h: Adjust.

	PR c++/68890
	* constexpr.c (verify_ctor_sanity): Remove CONSTRUCTOR_NELTS check.

2016-02-12  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/69098
	* pt.c (lookup_and_finish_template_variable): New function,
	extracted from ...
	(tsubst_copy_and_build) [TEMPLATE_ID_EXPR]: ... here.  Use it.
	(tsubst_qualified_id): Consider that EXPR might be a variable
	template.
	* typeck.c (check_template_keyword): Don't emit an error
	if DECL is a variable template.

2016-02-12  Jakub Jelinek  <jakub@redhat.com>

	* error.c: Spelling fixes - behaviour -> behavior and
	neighbour -> neighbor.
	* decl.c: Likewise.
	* typeck.c (cp_build_binary_op): Fix up behavior spelling in
	diagnostics.
	* init.c (build_delete): Likewise.

2016-02-11  Jakub Jelinek  <jakub@redhat.com>

	PR c/69768
	* typeck.c (cp_build_binary_op): cp_fully_fold integer_zerop
	arguments for -Waddress warning.  Fix up formatting.

2016-02-11  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/68726
	* pt.c (lookup_template_class_1): Check tsubst return value for
	error_mark_node.

2016-02-10  Jason Merrill  <jason@redhat.com>

	PR c++/68926
	* pt.c (resolve_nondeduced_context): Add complain parm.
	(do_auto_deduction): Pass it.
	* cvt.c (convert_to_void): Likewise.
	* decl.c (cp_finish_decl): Likewise.
	* init.c (build_new): Likewise.
	* rtti.c (get_tinfo_decl_dynamic): Likewise.
	* semantics.c (finish_decltype_type): Likewise.
	* typeck.c (decay_conversion): Likewise.
	* cp-tree.h: Adjust declaration.
	* call.c (standard_conversion): Add complain parm, pass it along.
	(implicit_conversion): Pass it.

	PR c++/69657
	* name-lookup.c (ambiguous_decl): Call remove_hidden_names.
	(lookup_name_real_1): Likewise.
	(remove_hidden_names): Handle non-functions too.

	PR c++/10200
	* parser.c (cp_parser_lookup_name): When looking for a template
	after . or ->, only consider class templates.
	(cp_parser_postfix_dot_deref_expression): Handle the current
	instantiation.  Remember a dependent object expression.
	* typeck2.c (build_x_arrow): Handle the current instantiation.

	* ptree.c (debug_tree): Implement for cp_expr.

2016-02-08  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/69139
	* parser.c (cp_parser_simple_type_specifier): Make the check
	for disambiguating between an 'auto' placeholder and an implicit
	template parameter more robust.

2016-02-08  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/69283
	PR c++/67835
	* decl2.c (mark_used): When given a TEMPLATE_DECL, return after
	setting its TREE_USED flag.

2016-02-08  Jason Merrill  <jason@redhat.com>

	PR c++/69657
	* name-lookup.c (do_nonmember_using_decl): Leave anticipated
	built-ins alone.

2016-02-08  Jakub Jelinek  <jakub@redhat.com>

	PR c++/59627
	* parser.c (cp_parser_omp_declare_reduction): Set assembler name
	of the DECL_OMP_DECLARE_REDUCTION_P decls.

2016-02-08  Marek Polacek  <polacek@redhat.com>

	PR c++/69688
	* constexpr.c (clear_cv_and_fold_caches): Renamed from clear_cv_cache.
	Call clear_fold_cache.
	* cp-tree.h: Adjust declaration.
	* decl.c (finish_enum_value_list): Call clear_cv_and_fold_caches
	rather than clear_cv_cache and clear_fold_cache.
	* typeck2.c (store_init_value): Call clear_cv_and_fold_caches.

2016-02-08  Jason Merrill  <jason@redhat.com>

	* cp-tree.h (CONV_FOLD, CONV_BACKEND_CONVERT): New.
	* cvt.c (convert): Pass CONV_BACKEND_CONVERT.
	(ocp_convert): Use *_maybe_fold.
	(cp_convert_to_pointer): Add dofold parameter.
	* cp-gimplify.c (cp_fold) [CONVERT_EXPR]: Call convert.

2016-02-05  Martin Sebor  <msebor@redhat.com>

	PR c++/69662
	* init.c (find_field_init): New function.
	(warn_placement_new_too_small): Call it.  Handle one-element arrays
	at ends of structures special.

2016-02-05  Jason Merrill  <jason@redhat.com>

	PR c++/68948
	* semantics.c (finish_expr_stmt): If expr is error_mark_node,
	make sure we've seen_error().

2016-02-05  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/68948
	* pt.c (tsubst_baselink): Diagnose an invalid constructor call
	if lookup_fnfields returns NULL_TREE and the name being looked
	up has the form A::A.

2016-02-04  Patrick Palka  <ppalka@gcc.gnu.org>

	* constexpr.c (cxx_eval_binary_expression): Fold equality
	comparisons involving PTRMEM_CSTs.

2016-02-04  Jakub Jelinek  <jakub@redhat.com>

	* class.c (find_flexarrays): Don't declare dom variable.
	(diagnose_flexarray): Likewise.

2016-02-02  Martain Sebor  <msebor@redhat.com>

	PR c++/69251
	PR c++/69253
	PR c++/69290
	PR c++/69277
	PR c++/69349
	* class.c (walk_subobject_offsets): Avoid testing the upper bound
	of a flexible array member for equality to null.
	(find_flexarrays): Remove spurious whitespace introduced in r231665.
	(diagnose_flexarrays): Avoid checking the upper bound of arrays.
	(check_flexarrays): Same.
	* decl.c (compute_array_index_type): Avoid special case for flexible
	array members.
	(grokdeclarator): Avoid calling compute_array_index_type for flexible
	array members.
	* error.c (dump_type_suffix): Revert changes introduced in r231665
	and rendered unnecessary by the changes above.
	* pt.c (tsubst):  Same.
	* tree.c (build_ctor_subob_ref): Handle flexible array members.
	* typeck2.c (digest_init_r): Revert changes introduced in r231665.
	(process_init_constructor_array): Same.
	(process_init_constructor_record): Same.

2016-02-03  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/69056
	* pt.c (try_one_overload): Handle comparing argument packs so
	that there is no conflict if we deduced more arguments of an
	argument pack than were explicitly specified.

2016-01-31  Jakub Jelinek  <jakub@redhat.com>
	    Jason Merrill  <jason@redhat.com>

	PR c++/68763
	* tree.c (strip_typedefs) [FUNCTION_TYPE]: Avoid building a new
	function type if nothing is changing.

2016-01-31  Jason Merrill  <jason@redhat.com>

	PR c++/69009
	* pt.c (partial_specialization_p, impartial_args): New.
	(instantiate_decl): Call impartial_args.

	* mangle.c (maybe_check_abi_tags): New.
	(write_guarded_var_name): Call it.
	(mangle_ref_init_variable): Call check_abi_tags.

	* pt.c (lookup_template_class_1): Don't share TYPE_ATTRIBUTES
	between template and instantiation.

2016-01-29  Jakub Jelinek  <jakub@redhat.com>

	PR debug/66869
	* decl.c (wrapup_globals_for_namespace): Warn about unused static
	function declarations.

2016-01-29  Marek Polacek  <polacek@redhat.com>

	PR c++/69509
	PR c++/69516
	* constexpr.c (cxx_eval_array_reference): Give the "array subscript
	out of bound" error earlier.
	* init.c (build_vec_init): Change NE_EXPR into GT_EXPR.  Update the
	commentary.

2016-01-29  Patrick Palka  <ppalka@gcc.gnu.org>

	* name-lookup.c (begin_scope): After reusing a cp_binding_level
	structure, update free_binding_level before the structure's
	level_chain field gets cleared, not after.

2016-01-28  Jason Merrill  <jason@redhat.com>

	PR c++/67407
	* search.c (dfs_walk_once, dfs_walk_once_r)
	(dfs_walk_once_accessible_r, dfs_walk_once_accessible): Use
	hash_set instead of BINFO_MARKED.
	(dfs_unmark_r): Remove.

2016-01-28  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/24208
	* parser.c (LEXER_DEBUGGING_ENABLED_P): New macro.
	(cp_lexer_debugging_p): Use it.
	(cp_lexer_start_debugging): Likewise.
	(cp_lexer_stop_debugging): Likewise.

2016-01-27  Marek Polacek  <polacek@redhat.com>

	PR c/68062
	* typeck.c (cp_build_binary_op): Promote operand to unsigned, if
	needed.  Add -Wsign-compare warning.

2016-01-27  Ryan Burn  <contact@rnburn.com>

	PR cilkplus/69267
	* cp-gimplify.c (cilk_cp_gimplify_call_params_in_spawned_fn): Removed
	superfluous post_p argument in call to
	cilk_gimplify_call_params_in_spawned_fn.

2016-01-27  Marek Polacek  <polacek@redhat.com>

	PR c++/69379
	* constexpr.c (cxx_eval_constant_expression): Handle PTRMEM_CSTs
	wrapped in NOP_EXPRs.

2016-01-27  Martin Sebor  <msebor@redhat.com>

	PR c++/69317
	* mangle.c (mangle_decl): Reference the correct (saved) version
	of the ABI in -Wabi diagnostics.

2016-01-27  Marek Polacek  <polacek@redhat.com>

	PR c++/69496
	* constexpr.c (cxx_eval_array_reference): Evaluate the number of
	elements of the array.

2016-01-26  Jason Merrill  <jason@redhat.com>

	PR c++/68949
	* constexpr.c (register_constexpr_fundef): Keep the un-massaged body.
	(cxx_eval_call_expression): Don't look through clones.
	* optimize.c (maybe_clone_body): Clear DECL_SAVED_TREE of the alias.
	* semantics.c (expand_or_defer_fn_1): Keep DECL_SAVED_TREE of
	maybe-in-charge *tor.

2016-01-26  Jason Merrill  <jason@redhat.com>

	PR c++/68782
	* constexpr.c (cxx_eval_bare_aggregate): Update TREE_CONSTANT
	and TREE_SIDE_EFFECTS.
	(cxx_eval_constant_expression) [CONSTRUCTOR]: Call
	verify_constructor_flags.

2016-01-26  Jakub Jelinek  <jakub@redhat.com>

	PR c++/68357
	* cp-gimplify.c (cp_fold): If some operand folds to error_mark_node,
	return error_mark_node instead of building trees with error_mark_node
	operands.

2016-01-26  David Malcolm  <dmalcolm@redhat.com>

	PR other/69006
	* error.c (print_instantiation_partial_context_line): Add missing
	newlines from output for the t == NULL case.
	(print_instantiation_partial_context): Remove call to pp_newline.

2016-01-24  Patrick Palka  <ppalka@gcc.gnu.org>

	Revert:
	2016-01-18  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/11858
	PR c++/24663
	PR c++/24664
	* decl.c (grokdeclarator): Don't decay array parameter type to
	a pointer type if it's dependent.
	(grokparms): Invoke strip_top_quals instead of directly invoking
	cp_build_qualified_type.
	* pt.c (decay_dependent_array_parm_type): New static function.
	(type_unification_real): Call decay_dependent_array_parm_type
	to decay a dependent array parameter type to its corresponding
	pointer type before unification.
	(more_specialized_fn): Likewise.
	(get_bindings): Likewise.
	* tree.c (cp_build_qualified_type): Trivial typofix in
	documentation.

2016-01-23  Martin Sebor  <msebor@redhat.com>

	PR c++/58109
	PR c++/69022
	* decl2.c (is_late_template_attribute): Handle dependent argument
	to attribute align and attribute vector_size.

2016-01-21  Jason Merrill  <jason@redhat.com>

	PR c++/69392
	* lambda.c (lambda_capture_field_type): Handle 'this' specially
	for init-capture, too.

	PR c++/65687
	* decl.c (type_is_deprecated): Don't look into a typedef.

	PR c++/40751
	PR c++/64987
	* decl.c (copy_type_enum): Respect TYPE_USER_ALIGN.

	PR c++/43407
	* decl.c (start_enum): Add attributes parameter.
	* parser.c (cp_parser_enum_specifier): Pass it.
	* pt.c (lookup_template_class_1): Pass it.
	* cp-tree.h: Adjust.

2016-01-19  Jason Merrill  <jason@redhat.com>

	PR c++/59759
	* pt.c (convert_template_argument): Handle VAR_DECL properly.

2016-01-19  Marek Polacek  <polacek@redhat.com>

	PR c++/68586
	* constexpr.c (clear_cv_cache): New.
	* cp-gimplify.c (clear_fold_cache): New.
	* cp-tree.h (clear_cv_cache, clear_fold_cache): Declare.
	* decl.c (finish_enum_value_list): Call them.

	PR c++/68965
	* pt.c (tsubst_copy): Mark elements in expanded vector as used.

2016-01-18  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/11858
	PR c++/24663
	PR c++/24664
	* decl.c (grokdeclarator): Don't decay array parameter type to
	a pointer type if it's dependent.
	(grokparms): Invoke strip_top_quals instead of directly invoking
	cp_build_qualified_type.
	* pt.c (decay_dependent_array_parm_type): New static function.
	(type_unification_real): Call decay_dependent_array_parm_type
	to decay a dependent array parameter type to its corresponding
	pointer type before unification.
	(more_specialized_fn): Likewise.
	(get_bindings): Likewise.
	* tree.c (cp_build_qualified_type): Trivial typofix in
	documentation.

2016-01-18  Jason Merrill  <jason@redhat.com>

	* cp-gimplify.c (cp_fold) [CONSTRUCTOR]: Don't clobber the input.

	* cp-gimplify.c (cp_fold): Remove unnecessary special cases.

	PR c++/68767
	* cp-gimplify.c (cp_fold) [COND_EXPR]: Simplify.  Do fold COND_EXPR.
	(contains_label_1, contains_label_p): Remove.

2016-01-16  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/69091
	* pt.c (type_dependent_expression_p): For a function template
	specialization, a type is dependent iff any of its template
	arguments are.

2016-01-16  Patrick Palka  <ppalka@gcc.gnu.org>

	* cp-array-notation.c (cp_expand_cond_array_notations): Return
	error_mark_node only if find_rank failed, not if it was
	successful.

2016-01-16  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/68936
	* tree.c (build_min_non_dep_call_vec): Don't retain the
	KOENIG_LOOKUP_P flag of the non-dependent expression that's
	been built.
	(build_min_non_dep_op_overload): Instead, do it here.

2016-01-15  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/68271
	* parser.h (cp_token): Remove pragma_kind field.  Add comment
	with number of unused bits.
	* parser.c (eof_token): Remove pragma_kind field initializer.
	(cp_lexer_get_preprocessor_token): Don't set pragma_kind
	field, don't clear CPP_PRAGMA u.value.
	(cp_parser_pragma_kind): New function.
	(cp_parser_omp_sections_scope, cp_parser_oacc_kernels_parallel,
	cp_parser_omp_construct, cp_parser_initial_pragma,
	cp_parser_pragma): Use cp_parser_pragma_kind instead of accessing
	pragma_kind field.

2016-01-15  Jason Merrill  <jason@redhat.com>

	PR c++/68847
	* call.c (build_cxx_call): Use fold_non_dependent_expr.

	* typeck2.c (cxx_incomplete_type_diagnostic): Use the location of
	value.

	PR c++/69257
	* typeck.c (decay_conversion): Don't call mark_rvalue_use for
	array/function-to-pointer conversion.  Call
	complete_type_or_maybe_complain for lvalue-to-rvalue conversion.
	* call.c (convert_like_real): Print call context if
	decay_conversion errors.

2016-01-14  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/68773
	* parser.c (cp_parser_oacc_declare, cp_parser_omp_declare_target): Don't
	set force_output.

2016-01-14  Jason Merrill  <jason@redhat.com>

	PR c++/69261
	* constexpr.c (find_array_ctor_elt): Handle splitting RANGE_EXPR.

2016-01-12  Marek Polacek  <polacek@redhat.com>

	PR c++/68979
	* constexpr.c (cxx_eval_check_shift_p): Use permerror rather than
	error_at and adjust the return value.

2016-01-12  Jakub Jelinek  <jakub@redhat.com>

	PR objc++/68511
	PR c++/69213
	* cp-gimplify.c (cp_gimplify_expr) <case INIT_EXPR>: Don't return
	GS_ERROR whenever seen_error (), only if *expr_p contains
	cilk spawn stmt, but cilk_detect_spawn_and_unwrap failed.

	PR c++/66808
	PR c++/69000
	* pt.c (tsubst_decl): If not local_p, clear DECL_TEMPLATE_INFO.

2016-01-11  Jason Merrill  <jason@redhat.com>

	PR c++/69131
	* method.c (walk_field_subobs): Add dtor_from_ctor parm.
	(process_subob_fn): Likewise.  Don't consider triviality if true.
	(synthesize_method_walk): Pass it.

2016-01-11  David Malcolm  <dmalcolm@redhat.com>

	PR c++/68795
	* parser.c (cp_parser_postfix_expression): Initialize
	close_paren_loc to UNKNOWN_LOCATION; only use it if
	it has been written to by
	cp_parser_parenthesized_expression_list.
	(cp_parser_parenthesized_expression_list): Document the behavior
	with respect to the CLOSE_PAREN_LOC param.

2016-01-11  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69211
	* cp-gimplify.c (cp_fold): If COMPOUND_EXPR or MODIFY_EXPR
	folded operands have side-effects, but folding changed any of them,
	build a new tree with the folded operands instead of returning the
	unfolded tree.

2016-01-09  Marek Polacek  <polacek@redhat.com>

	PR c++/69113
	* decl2.c (comdat_linkage): Only set DECL_COMDAT if TREE_PUBLIC is set.

2016-01-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69164
	* class.c (layout_class_type): Use copy_node to copy FIELD_DECLs.

2016-01-08  Jason Merrill  <jason@redhat.com>

	PR c++/69158
	* constexpr.c (cxx_fold_indirect_ref): Handle array type differing
	in completion.

2016-01-08  Marek Polacek  <polacek@redhat.com>

	PR c++/68449
	* constexpr.c (cxx_eval_constant_expression): Handle NULL initializer.

2016-01-08  Jason Merrill  <jason@redhat.com>

	* constexpr.c (cxx_eval_call_expression): Remove convert_to_void
	workaround.

	PR c++/68983
	PR c++/67557
	* cvt.c (convert_to_void): Don't strip a TARGET_EXPR of
	TREE_ADDRESSABLE type.

	PR c++/68983
	PR c++/67557
	* call.c (unsafe_copy_elision_p): Look through COMPOUND_EXPR.

2016-01-05  Nathan Sidwell  <nathan@acm.org>

	PR c++/58583
	* pt.c (build_non_dependent_expr): Don't try a checking fold when
	parsing an nsdmi.

2016-01-04  Jakub Jelinek  <jakub@redhat.com>

	Update copyright years.

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Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
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