path: root/gcc/cp/ChangeLog

2016-10-07  Jakub Jelinek  <jakub@redhat.com>

	Implement LWG2296 helper intrinsic
	* parser.c (cp_parser_postfix_expression): Handle RID_ADDRESSOF.
	* cp-objcp-common.c (cp_common_init_ts): Handle ADDRESSOF_EXPR.
	* constexpr.c (potential_constant_expression_1): Likewise.
	* error.c (dump_expr): Likewise.
	* typeck.c (cp_build_addressof): New function.
	* cp-tree.h (cp_build_addressof): Declare.
	* cxx-pretty-print.h (pp_cxx_addressof_expression): Declare.
	* cp-tree.def (ADDRESSOF_EXPR): New tree code.
	* cxx-pretty-print.c (cxx_pretty_printer::primary_expression): Handle
	ADDRESSOF_EXPR.  Add __builtin_addressof and
	__has_unique_object_representations into syntax in function comment.
	(pp_cxx_addressof_expression): New function.
	* pt.c (tsubst_copy_and_build): Handle ADDRESSOF_EXPR.

2016-10-07  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	PR c++/77700
	* parser.c (cp_parser_base_specifier): Fix a warning.

2016-10-07  Bernd Schmidt  <bschmidt@redhat.com>

	PR c++/69733
	* decl.c (grokdeclarator): Try to find the correct location for an
	ignored qualifier.

2016-10-07  Martin Liska  <mliska@suse.cz>

	* lambda.c (maybe_add_lambda_conv_op): Set default value.

2016-10-06  Jason Merrill  <jason@redhat.com>

	* call.c (build_temp, convert_like_real): Don't re-copy
	TARGET_EXPR.  Handle packed fields.
	(build_x_va_arg): Wrap it in a TARGET_EXPR.
	(build_over_call): Add sanity check.
	* cvt.c (early_elide_copy): New.
	(ocp_convert): Use it.
	* except.c (build_throw): Use it.
	* init.c (get_nsdmi): Put back the TARGET_EXPR.
	(expand_default_init): Call early_elide_copy.
	* typeck.c (cp_build_modify_expr): Call early_elide_copy.

2016-10-06  Jakub Jelinek  <jakub@redhat.com>

	Implement P0258R2 - helper for C++17
	std::has_unique_object_representations trait
	* cp-tree.h (enum cp_trait_kind): Add
	CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS.
	(struct lang_type_class): Add unique_obj_representations
	and unique_obj_representations_set bitfields.
	(CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS,
	CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS_SET): Define.
	(type_has_unique_obj_representations): Declare.
	* parser.c (cp_parser_primary_expression): Handle
	RID_HAS_UNIQUE_OBJ_REPRESENTATIONS.
	(cp_parser_trait_expr): Likewise.  Formatting fix.
	* semantics.c (trait_expr_value, finish_trait_expr): Handle
	CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS.
	* tree.c (type_has_unique_obj_representations): New function.
	(record_has_unique_obj_representations): New function.
	* cxx-pretty-print.c (pp_cxx_trait_expression): Handle
	CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS.

2016-10-05  Jason Merrill  <jason@redhat.com>

	Implement P0135R1, Guaranteed copy elision.
	* cvt.c (ocp_convert): Don't re-copy a TARGET_EXPR in C++17.

	PR c++/54293
	* call.c (reference_binding): Fix binding to member of temporary.

	* call.c (extend_ref_init_temps): Fix TARGET_EXPR handling.

	* parser.c (cp_parser_skip_to_end_of_statement): Add missing break.

	* semantics.c (finish_compound_literal): Handle class placeholder.

2016-10-05  Marek Polacek  <polacek@redhat.com>

	Implement P0305R1, Selection statements with initializer.
	* cp-array-notation.c (create_an_loop): Call finish_init_stmt
	instead of finish_for_init_stmt.
	* cp-tree.h (finish_for_init_stmt): Rename to finish_init_stmt.
	* decl.c (poplevel): Adjust a comment.
	* init.c (build_vec_init): Call finish_init_stmt instead of
	finish_for_init_stmt.
	* name-lookup.c (pushdecl_maybe_friend_1): Adjust a comment.
	* name-lookup.h (enum scope_kind): Likewise.
	* parser.c (cp_parser_statement): Update commentary.
	(cp_parser_init_statement_p): New function.
	(cp_parser_selection_statement): Parse the optional init-statement.
	(cp_parser_for): Call finish_init_stmt instead of finish_for_init_stmt.
	(cp_parser_c_for): Likewise.
	(cp_convert_range_for): Call finish_init_stmt instead of finish_for_init_stmt.
	(cp_parser_range_for_member_function): Update commentary.
	(cp_parser_iteration_statement):
	(cp_parser_for_init_statement): Rename to cp_parser_init_statement.
	* pt.c (tsubst_omp_for_iterator): Update commentary.
	(tsubst_expr): Call finish_init_stmt instead of finish_for_init_stmt.
	* semantics.c (finish_for_init_stmt): Rename to finish_init_stmt.
	Update commentary.

2016-10-04  Jason Merrill  <jason@redhat.com>

	PR c++/77852
	* pt.c (do_class_deduction): Handle list-initialization.
	(do_auto_deduction): Call it sooner.
	(build_deduction_guide): Use tsubst_arg_types.
	(rewrite_template_parm): Don't copy_type.

	PR c++/77775
	* constexpr.c (cxx_eval_component_reference): Use name matching
	for PMFs.

	Implement P0091R2, Template argument deduction for class templates.
	* parser.c (cp_parser_simple_type_specifier): Parse class placeholder.
	Use the location of the beginning of the type-specifier.
	(cp_parser_init_declarator): Parse deduction guide.
	(cp_parser_diagnose_invalid_type_name): Mention class deduction.
	(cp_parser_type_id_1): Don't accept class placeholder as template arg.
	* cp-tree.h (CLASS_PLACEHOLDER_TEMPLATE): New.
	* decl.c (grokdeclarator): Check for uninitialized auto here.
	(start_decl_1): Not here.
	(cp_finish_decl): Or here.  Don't collapse a list when doing
	class deduction.
	(grokfndecl): Check deduction guide scope and body.
	* error.c (dump_decl, dump_function_decl, dump_function_name):
	Handle deduction guides.
	* pt.c (make_template_placeholder, do_class_deduction): New.
	(build_deduction_guide, rewrite_template_parm): New.
	(dguide_name, dguide_name_p, deduction_guide_p): New.
	(do_auto_deduction): Call do_class_deduction.
	(splice_late_return_type, is_auto): Handle class placeholders.
	(template_parms_level_to_args): Split from template_parms_to_args.
	(tsubst_template_parms_level): Split from tsubst_template_parms.
	* typeck2.c (build_functional_cast): Handle class placeholder.

2016-10-04  Martin Sebor  <msebor@redhat.com>

	PR c++/77804
	* init.c (warn_placement_new_too_small): Avoid assuming an array type
	has a constant size.

2016-10-04  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77791
	* parser.c (cp_parser_lambda_declarator_opt): Only pedwarn
	for C++11 on decls in the param_list.  Test cxx_dialect < cxx14 before
	the loop just once.

	* cp-tree.h (enum cp_tree_index): Remove CPTI_JAVA_*,
	CPTI_LANG_NAME_JAVA and CPTI_JCLASS.
	(java_byte_type_node, java_short_type_node, java_int_type_node,
	java_long_type_node, java_float_type_node, java_double_type_node,
	java_char_type_node, java_boolean_type_node, lang_name_java,
	jclass_node): Remove.
	(enum languages): Remove lang_java.
	(TYPE_FOR_JAVA): Remove.
	(struct lang_type_class): Remove java_interface bit-field.
	(TYPE_JAVA_INTERFACE): Remove.
	(pragma_java_exceptions): Remove.
	(check_java_method, build_java_class_ref): Remove prototypes.
	* name-lookup.c (pushtag_1): Don't set TYPE_FOR_JAVA.
	* decl2.c (acceptable_java_type, check_java_method): Remove.
	(import_export_decl): Remove TYPE_FOR_JAVA handling.
	(build_java_method_aliases): Remove.
	(c_parse_final_cleanups): Don't call build_java_method_aliases.
	(possibly_inlined_p): Don't test pragma_java_exceptions.
	* init.c (build_new_1): Remove TYPE_FOR_JAVA handling.
	(build_java_class_ref): Remove.
	* pt.c (maybe_new_partial_specialization, lookup_template_class_1,
	instantiate_class_template_1): Don't copy TYPE_FOR_JAVA.
	* except.c (eh_type_info): Remove java type handling.
	(decl_is_java_type, choose_personality_routine): Remove.
	(initialize_handler_parm): Don't call choose_personality_routine.
	(expand_start_catch_block): Don't handle java types.
	(build_throw): Likewise.
	* cp-lang.c (cp_eh_personality): Don't handle pragma_java_exceptions.
	* typeck.c (structural_comptypes): Don't compare TYPE_FOR_JAVA.
	* call.c (build_over_call): Don't handle TYPE_JAVA_INTERFACE.
	(java_iface_lookup_fn): Remove.
	(build_java_interface_fn_ref): Remove.
	* tree.c (cxx_attribute_table): Remove java_interface.
	(handle_java_interface_attribute): Remove.
	* lex.c (pragma_java_exceptions): Remove.
	(init_cp_pragma): Don't register GCC java_exceptions pragma.
	(handle_pragma_java_exceptions): Remove.
	(retrofit_lang_decl): Don't handle lang_name_java.
	* method.c (implicitly_declare_fn): Don't handle TYPE_FOR_JAVA.
	* error.c (language_to_string): Don't handle lang_java.
	* decl.c (record_builtin_java_type): Remove.
	(initialize_predefined_identifiers): Remove Java.
	(cxx_init_decl_processing): Remove java_*_type_node.
	(cp_finish_decl): Don't handle TYPE_FOR_JAVA.
	(grokfndecl): Likewise.
	(check_special_function_return_type): Likewise.
	(grokdeclarator): Don't set TYPE_FOR_JAVA.
	(grokparms): Don't handle TYPE_FOR_JAVA.
	(xref_basetypes): Likewise.
	(check_function_type): Likewise.
	(finish_constructor_body): Likewise.
	* mangle.c (write_builtin_type): Don't handle TYPE_FOR_JAVA
	and java_*_type_node.
	(write_bare_function_type): Don't handle TYPE_FOR_JAVA.
	(write_java_integer_type_codes): Remove.
	* class.c (add_method): Don't handle TYPE_FOR_JAVA.
	(add_implicitly_declared_members, determine_key_method,
	finish_struct_1): Likewise.
	(push_lang_context): Don't handle lang_name_java.

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

	Core 903
	* typeck.c (cp_build_binary_op): Pass original operands to
	null_ptr_cst_p, not those after the default conversions.

2016-10-03  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* parser.c (cp_parser_condition): Fix a warning.

2016-09-29  Jakub Jelinek  <jakub@redhat.com>

	Implement P0001R1 - C++17 removal of register storage class specifier
	* decl.c (cp_finish_decl): Diagnose register storage class
	on vars except when used in GNU global or local register variable
	extension.
	(grokdeclarator): Diagnose register storage class on parameters.
	* except.c (expand_start_catch_block): Set DECL_REGISTER only
	after cp_finish_decl call.

2016-09-29  Marek Polacek  <polacek@redhat.com>

	* rtti.c (involves_incomplete_p): Add fall through comment.

2016-09-28  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77467
	* constexpr.c (enum constexpr_switch_state): New.
	(struct constexpr_ctx): Add css_state field.
	(label_matches): Add CTX and STMT arguments, remove I and
	DEFAULT_LABEL.  For CASE_LABEL_EXPR assert ctx->css_state != NULL,
	handle default labels according to css_state.
	(cxx_eval_statement_list): Remove statement skipping, label_matches
	and default_label handling code.
	(cxx_eval_loop_expr): Exit after first iteration even if
	switches (jump_target).
	(cxx_eval_switch_expr): Set up css_state field in ctx, if default
	label has been seen in the body, but no cases matched, evaluate
	the body second time.
	(cxx_eval_constant_expression): Handle stmt skipping and label_matches
	here.  Handle PREDICT_EXPR.  For MODIFY_EXPR or INIT_EXPR, assert
	statement is not skipped.  For COND_EXPR during skipping, don't
	evaluate condition, just the then block and if still skipping at the
	end also the else block.
	(cxx_eval_outermost_constant_expr): Adjust constexpr_ctx initializer.
	(is_sub_constant_expr): Likewise.

2016-09-27  Jakub Jelinek  <jakub@redhat.com>

	Implement P0018R3, C++17 lambda capture of *this by value as [=,*this]
	* parser.c (cp_parser_lambda_introducer): Formatting fix.  Pass
	true instead of false as by_reference_p to add_capture for 'this'.
	Parse '*this' simple-capture.
	* lambda.c (build_capture_proxy): Handle '*this' capture by value.
	(add_capture): Adjust function comment.  For id == this_identifier,
	treat by_reference_p as capturing '*this' by reference, i.e. 'this'
	by value, and !by_reference_p as capturing '*this' by value.
	(add_default_capture): For implicit 'this' capture, always pass
	by_reference_p true rather than false.

	PR c++/77722
	* cp-gimplify.c (cp_ubsan_maybe_instrument_return): Instrument also
	functions that have just a STATEMENT_LIST instead of BIND_EXPR, or
	BIND_EXPR with some statement rather than STATEMENT_LIST as body.

2016-09-26  Nathan Sidwell  <nathan@acm.org>

	* init.c (expand_default_init): Fix } indentation.
	* method.c (process_subob_fn): Simplify control structure to
	remove gotos.
	(implicitly_declare_fn): Remove duplicated lambda ctor check.

2016-09-26  Marek Polacek  <polacek@redhat.com>

	PR c/7652
	* parser.c (cp_parser_storage_class_specifier_opt): Add
	gcc_fallthrough.
	(cp_parser_skip_to_end_of_template_parameter_list): Likewise.
	(cp_parser_cache_defarg): Likewise.
	(cp_parser_omp_for_cond): Likewise.
	* semantics.c (finish_decltype_type): Likewise.
	* typeck.c (structural_comptypes): Likewise.
	(cp_build_binary_op): Likewise.
	(cp_build_modify_expr): Likewise.

2016-09-26  Marek Polacek  <polacek@redhat.com>

	PR c/7652
	* constexpr.c (cxx_eval_internal_function): Handle IFN_FALLTHROUGH.
	(potential_constant_expression_1): Likewise.
	* constraint.cc (function_concept_check_p): Check fn for null.
	* parser.c (cp_parser_expression_statement): Handle attribute
	fallthrough.
	(cp_parser_statement): Likewise.
	(cp_parser_label_for_labeled_statement): Set FALLTHROUGH_LABEL_P on
	labels.
	(cp_parser_std_attribute): Handle fallthrough attribute.
	(cp_parser_check_std_attribute): Add %< %> quotes.
	* pt.c (tsubst_copy_and_build): Handle internal functions.
	(instantiation_dependent_scope_ref_p): Return if the expression is
	null.

2016-09-24  Marek Polacek  <polacek@redhat.com>

	PR c/77490
	* typeck.c (cp_build_unary_op): Warn about bit not on expressions that
	have boolean value.

2016-09-23  Jakub Jelinek  <jakub@redhat.com>

	Implement P0138R2, C++17 construction rules for enum class values
	* cp-tree.h (is_direct_enum_init): Declare.
	* decl.c (is_direct_enum_init): New function.
	(reshape_init): Use it.
	* typeck.c (convert_for_assignment): Likewise.

	* Make-lang.in (check-c++1z): Pass RUNTESTFLAGS down to
	make check-g++.

	* constexpr.c (call_stack): Remove unnecessary
	= vNULL initialization of file scope vec.

	* name-lookup.c (store_bindings, store_class_bindings): Don't
	initialize static local bindings_need_stored to vNULL.

	* typeck2.c (process_init_constructor_record): Use
	CONSTRUCTOR_NELTS (...) instead of
	vec_safe_length (CONSTRUCTOR_ELTS (...)).
	* decl.c (reshape_init_r): Likewise.
	(check_initializer): Likewise.

2016-09-22  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71979
	* class.c (build_base_path): Allow for lookup_base returning
	NULL_TREE.

2016-09-21  Jason Merrill  <jason@redhat.com>

	Core 903
	* call.c (null_ptr_cst_p): Check char_type_p.

2016-09-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77651
	* init.c (build_new_1): Don't suggest to use -faligned-new if
	aligned_new_threshold is non-zero.
	(type_has_new_extended_alignment): Change aligned_new_threshhold
	to aligned_new_threshold.
	* call.c (second_parm_is_size_t, aligned_allocation_fn_p,
	aligned_deallocation_fn_p, build_op_delete_call): Likewise.
	* decl.c (cxx_init_decl_processing): Likewise.

2016-09-20  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77626
	* constexpr.c (cxx_fold_indirect_ref): Don't call byte_position on
	FIELD_DECLs with error_mark_node type.  Remove useless break; after
	return.

	PR c++/77638
	* parser.c (cp_parser_template_declaration_after_parameter): For 2
	argument operator"" template set ok to false for
	parm == error_mark_node.

	PR c++/77637
	* parser.c (cp_parser_std_attribute_list): Reject ... without
	preceding attribute.

2016-09-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	PR c++/77434
	* cvt.c (cp_convert_and_check): Suppress Wint-in-bool-context here.

2016-09-16  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/77639
	* parser.c (cp_parser_class_head): When
	processing_template_parmlist, don't assume that the
	class-head may start an explicit specialization.

2016-09-16  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77482
	* error.c (dump_simple_decl): Only check DECL_DECLARED_CONCEPT_P
	if DECL_LANG_SPECIFIC is non-NULL.  Fix up formatting.

	PR c++/77338
	* constexpr.c (cxx_eval_constant_expression) <case PARM_DECL>: Only
	call is_really_empty_class on complete types.

	PR c++/77375
	* class.c (check_bases): Set CLASSTYPE_HAS_MUTABLE if any
	TYPE_HAS_MUTABLE_P for any bases.

2016-09-16  Jason Merrill  <jason@redhat.com>

	* class.c (check_bases, set_one_vmethod_tm_attributes): Use
	least_bit_hwi.
	* decl.c (cxx_init_decl_processing): Use pow2p_hwi.
	* parser.c (cp_parser_cilk_simd_vectorlength): Use pow2p_hwi.

2016-09-14  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77549
	* name-lookup.c (consider_binding_level): Look through TREE_LIST
	and OVERLOAD.

2016-09-14  Marek Polacek  <polacek@redhat.com>

	* typeck.c (cp_build_unary_op): Diagnose incrementing boolean
	expressions.  Tweak an error message.

2016-09-14  Marek Polacek  <polacek@redhat.com>

	* cp-tree.h (cp_build_unary_op): Change nonconvert parameter type to
	bool.
	* decl2.c (one_static_initialization_or_destruction): Use true instead
	of 1.
	* init.c (build_vec_init): Use false instead of 0.
	* pt.c (tsubst_copy_and_build): Likewise.
	* semantics.c (simplify_loop_decl_cond): Likewise.
	* typeck.c (rationalize_conditional_expr): Likewise.
	(cp_build_binary_op): Use true instead of 1.
	(cp_build_unary_op): Change nonconvert parameter type to bool.  Use true
	instead of 1.
	(build_unary_op): Change nonconvert parameter type to bool.
	(unary_complex_lvalue): Use false instead of 0.

2016-09-13  Jakub Jelinek  <jakub@redhat.com>

	Implement P0028R4, C++17 using attribute namespaces without repetition
	* parser.c (cp_parser_std_attribute): Add ATTR_NS argument.  Diagnose
	non-NULL ATTR_NS with scoped attribute token.  Handle non-NULL
	ATTR_NS with non-scoped attribute tokens.  Allow named ops in
	identifier after ::.
	(cp_parser_std_attribute_list): Add ATTR_NS argument, pass it down
	to cp_parser_std_attribute calls.
	(cp_parser_std_attribute_spec): Parse optional C++17
	attribute-using-prefix, adjust grammar in function comment.

	PR c++/77553
	* constexpr.c (cxx_fold_pointer_plus_expression): New function.
	(cxx_eval_binary_expression): Use it for POINTER_PLUS_EXPR.
	(cxx_eval_pointer_plus_expression): Remove.
	(cxx_eval_constant_expression) <case POINTER_PLUS_EXPR>: Don't
	call cxx_eval_pointer_plus_expression.

2016-09-13  David Malcolm  <dmalcolm@redhat.com>

	* parser.c (cp_parser_class_specifier_1): Update for renaming of
	add_fixit_insert to add_fixit_insert_before.
	(cp_parser_class_head): Likewise.

2016-09-12  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	PR c++/77496
	* call.c (build_conditional_expr_1): Call warn_for_omitted_condop.
	* class.c (instantiate_type): Look through the SAVE_EXPR.

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

	Implement P0035R4, C++17 new of over-aligned types.
	* cp-tree.h (enum cp_tree_index): Add CPTI_ALIGN_TYPE.
	(align_type_node): New macro.
	* call.c (build_operator_new_call): Handle C++17 aligned new.
	(second_parm_is_size_t, build_op_delete_call): Likewise.
	(non_placement_deallocation_fn_p): Likewise. Rename to
	usual_deallocation_fn_p.
	(aligned_allocation_fn_p, aligned_deallocation_fn_p): New.
	* decl.c (cxx_init_decl_processing): Add aligned new support.
	* init.c (type_has_new_extended_alignment): New.
	(build_new_1): Handle aligned new.
	* tree.c (vec_copy_and_insert): New.

2016-09-02  Jakub Jelinek  <jakub@redhat.com>

	PR sanitizer/77396
	* decl2.c (do_static_initialization_or_destruction): Only
	call asan_dynamic_init_call if INITP is true.

2016-09-01  Martin Sebor  <msebor@redhat.com>

	* mangle.c: Increase buffer size to guarantee it fits the output
	of the formatted function regardless of its arguments.

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.

Copyright (C) 2016 Free Software Foundation, Inc.

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