[thirdparty/gcc.git] / gcc / cp / ChangeLog

2019-03-25  Marek Polacek  <polacek@redhat.com>

	PR c++/89705 - ICE with reference binding with conversion function.
	* call.c (reference_binding): If the result of the conversion function
	is a prvalue of non-class type, use the cv-unqualified type.

2019-03-25  Nathan Sidwell  <nathan@acm.org>

	* lambda.c (maybe_add_lambda_conv_op): Don't add to comdat group.

2019-03-22  Jakub Jelinek  <jakub@redhat.com>

	PR c++/60702
	* cp-tree.h (get_tls_wrapper_fn): Remove declaration.
	(maybe_get_tls_wrapper_call): Declare.
	* decl2.c (get_tls_wrapper_fn): Make static.
	(maybe_get_tls_wrapper_call): New function.
	* typeck.c (build_class_member_access_expr): Handle accesses to TLS
	variables.
	* semantics.c (finish_qualified_id_expr): Likewise.
	(finish_id_expression_1): Use maybe_get_tls_wrapper_call.
	* pt.c (tsubst_copy_and_build): Likewise.

	PR c++/87481
	* constexpr.c (struct constexpr_ctx): Add constexpr_ops_count member.
	(cxx_eval_constant_expression): When not skipping, not constant class
	or location wrapper, increment *ctx->constexpr_ops_count and if it is
	above constexpr_loop_nest_limit, diagnose failure.
	(cxx_eval_outermost_constant_expr): Add constexpr_ops_count and
	initialize ctx.constexpr_ops_count to its address.
	(is_sub_constant_expr): Likewise.

2019-03-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71446
	* call.c (filed_in_pset): Change pset from hash_set<tree> * to
	hash_set<tree, true> &, adjust uses accordingly.
	(build_aggr_conv): Change pset from hash_set<tree> *
	to hash_set<tree, true>.  Replace goto fail; with return NULL;,
	adjust pset uses.

	PR c++/89767
	* parser.c (cp_parser_lambda_introducer): Add ids and first_capture_id
	variables, check for duplicates in this function.
	* lambda.c (add_capture): Don't check for duplicates nor use
	IDENTIFIER_MARKED.
	(register_capture_members): Don't clear IDENTIFIER_MARKED here.

2019-03-21  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/89571
	* method.c (after_nsdmi_defaulted_late_checks): Avoid passing
	error_mark_node to comp_except_specs.

2019-03-20  Jason Merrill  <jason@redhat.com>

	PR c++/87480 - decltype of member access in default template arg
	* pt.c (type_unification_real): Accept a dependent result in
	template context.

2019-03-19  Martin Sebor  <msebor@redhat.com>

	PR tree-optimization/89688
	* typeck2.c (store_init_value): Call braced_lists_to_string for more
	kinds of initializers.

2019-03-18  Jason Merrill  <jason@redhat.com>

	PR c++/89630 - ICE with dependent using-decl as template arg.
	* tree.c (cp_tree_equal): Always return false for USING_DECL.

	PR c++/89761 - ICE with sizeof... in pack expansion.
	* pt.c (argument_pack_element_is_expansion_p): Handle
	ARGUMENT_PACK_SELECT.

	PR c++/89640 - GNU attributes on lambda.
	* parser.c (cp_parser_lambda_declarator_opt): Allow GNU attributes.

	PR c++/89682 - wrong access error in default argument.
	* pt.c (tsubst_default_argument): Don't defer access checks.

2019-03-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/85014
	* semantics.c (finish_non_static_data_member): Check return value
	of context_for_name_lookup and immediately return error_mark_node
	if isn't a type.

2019-03-17  Jason Merrill  <jason@redhat.com>

	PR c++/89571 - ICE with ill-formed noexcept on constructor.
	* pt.c (maybe_instantiate_noexcept): Only return false if defaulted.
	(regenerate_decl_from_template): Use it for noexcept-specs.

2019-03-14  Jason Merrill  <jason@redhat.com>

	* parser.c (cp_parser_decl_specifier_seq): Support C++20
	concept-definition syntax without 'bool'.

2019-03-14  Jakub Jelinek  <jakub@redhat.com>

	PR c++/89512
	* semantics.c (finish_qualified_id_expr): Reject variable templates.

	PR c++/89652
	* constexpr.c (struct constexpr_ctx): Change save_exprs type from
	hash_set<tree> to vec<tree>.
	(cxx_eval_call_expression): Adjust for save_exprs being a vec instead
	of hash_set.
	(cxx_eval_loop_expr): Likewise.  Truncate the vector after each
	removal of SAVE_EXPRs from values.
	(cxx_eval_constant_expression) <case SAVE_EXPR>: Call safe_push
	method on save_exprs instead of add.

2019-03-13  Jason Merrill  <jason@redhat.com>

	PR c++/86521 - C++17 copy elision in initialization by constructor.
	* call.c (joust_maybe_elide_copy): New.
	(joust): Call it.

2019-03-13  Marek Polacek  <polacek@redhat.com>

	PR c++/88979 - further P0634 fix for constructors.
	* parser.c (cp_parser_decl_specifier_seq): Pass flags to
	cp_parser_constructor_declarator_p.
	(cp_parser_direct_declarator): Allow missing typename for constructor
	parameters.
	(cp_parser_constructor_declarator_p): Add FLAGS parameter.  Pass it to
	cp_parser_type_specifier.

	PR c++/89686 - mixing init-capture and simple-capture in lambda.
	* parser.c (cp_parser_lambda_introducer): Give error when combining
	init-capture and simple-capture.

	PR c++/89660 - bogus error with -Wredundant-move.
	* typeck.c (maybe_warn_pessimizing_move): Only accept (T &) &arg
	as the std::move's argument.  Don't call convert_for_initialization
	when warn_redundant_move isn't on.

2019-03-11  Jason Merrill  <jason@redhat.com>

	PR c++/86521 - wrong overload resolution with ref-qualifiers.
	* call.c (build_user_type_conversion_1): Don't use a conversion to a
	reference of the wrong rvalueness for direct binding.

2019-03-11  Martin Liska  <mliska@suse.cz>

	* cvt.c (build_expr_type_conversion): Wrap apostrophes
	in gcc internal format with %'.
	* decl.c (check_no_redeclaration_friend_default_args): Likewise.
	(grokfndecl): Likewise.
	* name-lookup.c (do_pushtag): Likewise.
	* pt.c (unify_parameter_deduction_failure): Likewise.
	(unify_template_deduction_failure): Likewise.

2019-03-11  Martin Liska  <mliska@suse.cz>

	* call.c (convert_arg_to_ellipsis): Wrap an option name
	in a string format message and fix GNU coding style.
	(build_over_call): Likewise.
	* class.c (check_field_decl): Likewise.
	(layout_nonempty_base_or_field): Likewise.
	* constexpr.c (cxx_eval_loop_expr): Likewise.
	* cvt.c (type_promotes_to): Likewise.
	* decl.c (cxx_init_decl_processing): Likewise.
	(mark_inline_variable): Likewise.
	(grokdeclarator): Likewise.
	* decl2.c (record_mangling): Likewise.
	* error.c (maybe_warn_cpp0x): Likewise.
	* except.c (doing_eh): Likewise.
	* mangle.c (maybe_check_abi_tags): Likewise.
	* parser.c (cp_parser_diagnose_invalid_type_name): Likewise.
	(cp_parser_userdef_numeric_literal): Likewise.
	(cp_parser_primary_expression): Likewise.
	(cp_parser_unqualified_id): Likewise.
	(cp_parser_pseudo_destructor_name): Likewise.
	(cp_parser_builtin_offsetof): Likewise.
	(cp_parser_lambda_expression): Likewise.
	(cp_parser_lambda_introducer): Likewise.
	(cp_parser_lambda_declarator_opt): Likewise.
	(cp_parser_selection_statement): Likewise.
	(cp_parser_init_statement): Likewise.
	(cp_parser_decomposition_declaration): Likewise.
	(cp_parser_function_specifier_opt): Likewise.
	(cp_parser_static_assert): Likewise.
	(cp_parser_simple_type_specifier): Likewise.
	(cp_parser_namespace_definition): Likewise.
	(cp_parser_using_declaration): Likewise.
	(cp_parser_ctor_initializer_opt_and_function_body): Likewise.
	(cp_parser_initializer_list): Likewise.
	(cp_parser_type_parameter_key): Likewise.
	(cp_parser_member_declaration): Likewise.
	(cp_parser_try_block): Likewise.
	(cp_parser_std_attribute_spec): Likewise.
	(cp_parser_requires_clause_opt): Likewise.
	* pt.c (check_template_variable): Likewise.
	(check_default_tmpl_args): Likewise.
	(push_tinst_level_loc): Likewise.
	(instantiate_pending_templates): Likewise.
	(invalid_nontype_parm_type_p): Likewise.
	* repo.c (get_base_filename): Likewise.
	* rtti.c (typeid_ok_p): Likewise.
	(build_dynamic_cast_1): Likewise.
	* tree.c (maybe_warn_parm_abi): Likewise.

2019-03-08  Jakub Jelinek  <jakub@redhat.com>

	PR other/80058
	* parser.c (cp_parser_template_declaration_after_parameters): Avoid
	one space before " at the end of line and another after " on another
	line in a string literal.

	PR tree-optimization/89550
	* semantics.c (maybe_convert_cond): Only set TREE_NO_WARNING if
	warning_at returned true.
	* decl2.c (c_parse_final_cleanups): Likewise.
	* typeck.c (convert_for_assignment): Likewise.
	* decl.c (finish_function): Likewise.

	PR c++/89585
	* parser.c (cp_parser_asm_definition): Just warn instead of error
	on volatile qualifier outside of function body.

	PR c++/89599
	* constexpr.c (potential_constant_expression_1): Reject
	REINTERPRET_CAST_P NOP_EXPRs.

	PR c++/89622
	* call.c (joust): Call print_z_candidate only if pedwarn returned
	true.

2019-03-07  Jason Merrill  <jason@redhat.com>

	PR c++/88123 - lambda and using-directive.
	* name-lookup.c (op_unqualified_lookup)
	(maybe_save_operator_binding, discard_operator_bindings)
	(push_operator_bindings): New.
	* typeck.c (build_x_binary_op, build_x_unary_op): Call
	maybe_save_operator_binding.
	* decl.c (start_preparsed_function): Call push_operator_bindings.
	* tree.c (cp_free_lang_data): Call discard_operator_bindings.

	PR c++/88820 - ICE with CTAD and member template used in DMI.
	* pt.c (do_class_deduction): Handle parm used as its own arg.

2019-03-07  Jakub Jelinek  <jakub@redhat.com>

	PR c++/89585
	* parser.c (cp_parser_asm_definition): Parse asm qualifiers even
	at toplevel, but diagnose them.

2019-03-06  Jason Merrill  <jason@redhat.com>

	PR c++/89381 - implicit copy and using-declaration.
	* class.c (classtype_has_move_assign_or_move_ctor_p): Don't consider
	op= brought in by a using-declaration.

2019-03-06  Jakub Jelinek  <jakub@redhat.com>

	PR c++/87148
	* init.c (build_value_init_noctor): Ignore flexible array members.

2019-03-06  Jason Merrill  <jason@redhat.com>

	PR c++/89576 - if constexpr of lambda capture.
	* semantics.c (maybe_convert_cond): Do convert a non-dependent
	condition in a template.
	* typeck.c (condition_conversion): Handle being called in a
	template.

2019-03-06  Marek Polacek  <polacek@redhat.com>

	PR c++/87378 - bogus -Wredundant-move warning.
	* typeck.c (maybe_warn_pessimizing_move): See if the maybe-rvalue
	overload resolution would actually succeed.

2019-03-05  Jason Merrill  <jason@redhat.com>

	* class.c (is_really_empty_class): Add ignore_vptr parm.
	(trivial_default_constructor_is_constexpr): Pass it.
	* call.c (build_over_call): Pass it.
	* constexpr.c (cxx_eval_constant_expression): Pass it instead of
	checking TYPE_POLYMORPHIC_P.
	(cxx_eval_component_reference, potential_constant_expression_1):
	Pass it.
	* cp-gimplify.c (simple_empty_class_p): Pass it.
	* init.c (expand_aggr_init_1): Pass it.

2019-03-04  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/84605
	* parser.c (cp_parser_class_head): Reject TYPE_BEING_DEFINED too.

2019-03-04  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71446
	* call.c (field_in_pset): New function.
	(build_aggr_conv): Handle CONSTRUCTOR_IS_DESIGNATED_INIT correctly.

2019-03-02  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71446
	* cp-tree.h (CONSTRUCTOR_IS_DESIGNATED_INIT): Define.
	* parser.c (cp_parser_braced_list): Adjust cp_parser_initializer_list
	caller, set CONSTRUCTOR_IS_DESIGNATED_INIT.
	(cp_parser_initializer_list): Add designated parameter, set *designated
	to a bool whether any designators were parsed.
	* decl.c (reshape_init): Copy over CONSTRUCTOR_IS_DESIGNATED_INIT if
	needed.
	* pt.c (tsubst_copy_and_build): Likewise.
	* call.c (implicit_conversion): If CONSTRUCTOR_IS_DESIGNATED_INIT,
	don't call build_list_conv, nor build_complex_conv, nor attempt to
	convert a single element initializer to scalar.

2019-03-01  Marek Polacek  <polacek@redhat.com>

	PR c++/89537 - missing location for error with non-static member fn.
	* call.c (resolve_args): Use EXPR_LOCATION.
	* typeck.c (build_class_member_access_expr): Use input_location.

	PR c++/89532 - ICE with incomplete type in decltype.
	* semantics.c (finish_compound_literal): Return error_mark_node
	if digest_init_flags returns error_mark_node.

2019-03-01  Jakub Jelinek  <jakub@redhat.com>

	Implement P1002R1, Try-catch blocks in constexpr functions
	PR c++/89513
	* parser.c (cp_parser_ctor_initializer_opt_and_function_body):
	Diagnose constexpr ctor or function with function-try-block with
	pedwarn for c++17 and earlier.  Formatting fix.
	(cp_parser_try_block): Use pedwarn instead of error and only for
	c++17 and earlier when try block appears in constexpr function.
	* constexpr.c (build_constexpr_constructor_member_initializers):
	Handle TRY_BLOCK here instead of erroring on it.

2019-02-28  Jason Merrill  <jason@redhat.com>

	PR c++/88183 - ICE with .* fold-expression.
	* pt.c (fold_expression) [DOTSTAR_EXPR]: Remove special handling.

	PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
	* class.c, lambda.c, pt.c: Revert earlier change.
	* lambda.c (add_capture): Don't special-case capture of dependent
	VLA.

	* name-lookup.c (print_binding_level): Print this_entity.

2019-02-27  Marek Polacek  <polacek@redhat.com>

	PR c++/88857 - ICE with value-initialization of argument in template.
	* call.c (convert_like_real): Don't call build_value_init in template.

2019-02-27  Jason Merrill  <jason@redhat.com>

	PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
	* semantics.c (process_outer_var_ref): Do capture dependent vars.
	* class.c (finish_struct): Only add TAG_DEFN if T is in
	current_function_decl.
	* lambda.c (vla_capture_type): Force the capture type out into the
	lambda's enclosing function.
	(add_capture): Pass in the lambda.
	* pt.c (tsubst_lambda_expr): complete_type a VLA capture type.

2019-02-27  Marek Polacek  <polacek@redhat.com>

	PR c++/89511 - ICE with using-declaration and unscoped enumerator.
	* parser.c (cp_parser_using_declaration): For an unscoped enum
	only use its context if it's not a function declaration.

2019-02-27  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/89488
	* method.c (process_subob_fn): When maybe_instantiate_noexcept
	returns false don't call merge_exception_specifiers.

2019-02-27  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/88987
	* parser.c (cp_parser_noexcept_specification_opt): Return NULL_TREE
	for a non-constant parsed expression.

2019-02-26  Jakub Jelinek  <jakub@redhat.com>

	PR c++/89481
	* constexpr.c (cxx_eval_store_expression): When changing active union
	member, set no_zero_init.

2019-02-23  Marek Polacek  <polacek@redhat.com>

	PR c++/88294 - ICE with non-constant noexcept-specifier.
	* pt.c (maybe_instantiate_noexcept): Set up the list of local
	specializations.  Set current_class_{ptr,ref}.

2019-02-22  David Malcolm  <dmalcolm@redhat.com>

	PR c++/89390
	* parser.c (cp_parser_unqualified_id): Capture and use locations
	for destructors.

2019-02-22  Marek Polacek  <polacek@redhat.com>

	PR c++/89420 - ICE with CAST_EXPR in explicit-specifier.
	* decl.c (build_explicit_specifier): Don't check
	processing_template_decl.  Call instantiation_dependent_expression_p
	instead of value_dependent_expression_p.  Call
	instantiate_non_dependent_expr_sfinae before
	build_converted_constant_expr instead of calling
	instantiate_non_dependent_expr after it.  Add
	processing_template_decl_sentinel.

2019-02-22  Thomas Schwinge  <thomas@codesourcery.com>

	* parser.c (cp_parser_oacc_simple_clause): Remove parser formal
	parameter, move loc formal parameter to the front.  Adjust all
	users.
	(cp_parser_oacc_shape_clause): Add loc formal parameter.  Adjust
	all users.

2019-02-21  Jason Merrill  <jason@redhat.com>

	PR c++/87685 - generic lambda 'this' capture error.
	* lambda.c (lambda_expr_this_capture): Change add_capture_p to int.
	(maybe_generic_this_capture): Pass -1.

	PR c++/88394 - ICE with VLA init-capture.
	* lambda.c (is_normal_capture_proxy): Check DECL_CAPTURED_VARIABLE.

	PR c++/88869 - C++17 ICE with CTAD and explicit specialization.
	* pt.c (do_class_deduction): Don't include explicit specialization
	args in outer_args.

	PR c++/89422 - ICE with -g and lambda in default arg in template.
	* pt.c (tsubst_function_decl): SET_DECL_FRIEND_CONTEXT sooner.

2019-02-21  Jason Merrill  <jason@redhat.com>

	PR c++/88419 - C++17 ICE with class template arg deduction.
	* pt.c (make_template_placeholder): Set TYPE_CANONICAL after
	CLASS_PLACEHOLDER_TEMPLATE.

2019-02-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/89285
	* constexpr.c (struct constexpr_fundef): Add parms and result members.
	(retrieve_constexpr_fundef): Adjust for the above change.
	(register_constexpr_fundef): Save constexpr body with copy_fn,
	temporarily set DECL_CONTEXT on DECL_RESULT before that.
	(get_fundef_copy): Change FUN argument to FUNDEF with
	constexpr_fundef * type, grab body and parms/result out of
	constexpr_fundef struct and temporarily change it for copy_fn calls
	too.
	(cxx_eval_builtin_function_call): For __builtin_FUNCTION temporarily
	adjust current_function_decl from ctx->call context.  Test
	!potential_constant_expression instead of !is_constant_expression.
	(cxx_bind_parameters_in_call): Grab parameters from new_call.  Undo
	convert_for_arg_passing changes for TREE_ADDRESSABLE type passing.
	(cxx_eval_call_expression): Adjust get_fundef_copy caller.
	(cxx_eval_conditional_expression): For IF_STMT, allow then or else
	operands to be NULL.
	(label_matches): Handle BREAK_STMT and CONTINUE_STMT.
	(cxx_eval_loop_expr): Add support for FOR_STMT, WHILE_STMT and DO_STMT.
	(cxx_eval_switch_expr): Add support for SWITCH_STMT.
	(cxx_eval_constant_expression): Handle IF_STMT, FOR_STMT, WHILE_STMT,
	DO_STMT, CONTINUE_STMT, SWITCH_STMT, BREAK_STMT and CONTINUE_STMT.
	For SIZEOF_EXPR, recurse on the result of fold_sizeof_expr.  Ignore
	DECL_EXPR with USING_DECL operand.
	* lambda.c (maybe_add_lambda_conv_op): Build thisarg using
	build_int_cst to make it a valid constant expression.

2019-02-20  Jason Merrill  <jason@redhat.com>

	PR c++/88690 - C++17 ICE with empty base in aggregate.
	* typeck2.c (process_init_constructor_record): Skip trivial
	initialization of an empty base.

2019-02-21  Richard Biener  <rguenther@suse.de>

	PR middle-end/89392
	* vtable-class-hierarchy.c (vtv_generate_init_routine): Do not
	make symtab process new functions here.

2019-02-20  Jason Merrill  <jason@redhat.com>

	PR c++/87921 - wrong error with inline static data member.
	* decl2.c (finish_static_data_member_decl): Don't set DECL_IN_AGGR_P
	for a non-template inline variable.  Do nothing for an
	already-instantiated variable.
	(c_parse_final_cleanups): Check DECL_IN_AGGR_P without
	DECL_INLINE_VAR_P.
	* decl.c (check_initializer): Likewise.
	(make_rtl_for_nonlocal_decl): Likewise.
	* pt.c (instantiate_decl): Likewise.
	* typeck2.c (store_init_value): Likewise.

2019-02-20  Jakub Jelinek  <jakub@redhat.com>

	PR c++/89403
	* decl2.c (c_parse_final_cleanups): Move TREE_ASM_WRITTEN setting
	for flag_syntax_only from here...
	* semantics.c (expand_or_defer_fn_1): ... here.

	PR c++/89405
	* decl.c (maybe_commonize_var): When clearing TREE_PUBLIC and
	DECL_COMMON, set DECL_INTERFACE_KNOWN.

	PR c++/89336
	* constexpr.c (cxx_eval_store_expression): Diagnose changing of active
	union member for -std=c++17 and earlier.

2019-02-19  Jason Merrill  <jason@redhat.com>

	PR c++/87513 - 'sorry' mangling PMF template-id.
	* mangle.c (write_expression): Handle SCOPE_REF to BASELINK.

2019-02-19  Jason Merrill  <jason@redhat.com>

	PR c++/88380 - wrong-code with flexible array and NSDMI.
	* typeck2.c (process_init_constructor_record): Skip flexarrays.

2019-02-20  will wray  <wjwray@gmail.com>

	PR c++/88572 - wrong handling of braces on scalar init.
	* decl.c (reshape_init_r): Allow braces around scalar initializer
	within aggregate init.  Reject double braced-init of scalar
	variable.

2019-02-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/84536
	* pt.c (tsubst_init): Diagnose an initializer expanding to an
	empty list of expressions; tweak wrt dependent types.
	(regenerate_decl_from_template): For VAR_DECLs call tsubst_init
	instead of tsubst_expr.

2019-02-19  Jason Merrill  <jason@redhat.com>

	PR c++/88368 - wrong 'use of deleted function'
	* method.c (walk_field_subobs): Remember errors from get_nsdmi.
	(get_defaulted_eh_spec): Call push_tinst_level.
	* pt.c (maybe_instantiate_noexcept): Keep error_mark_node.
	* typeck2.c (merge_exception_specifiers): Handle error_mark_node.

2019-02-19  Chung-Lin Tang <cltang@codesourcery.com>

	PR c/87924
	* parser.c (cp_parser_oacc_clause_wait): Add representation of wait
	clause without argument as 'wait (GOMP_ASYNC_NOVAL)', adjust comments.

2019-02-19  Jakub Jelinek  <jakub@redhat.com>

	PR c++/89387
	* lambda.c (maybe_generic_this_capture): Don't check
	DECL_NONSTATIC_MEMBER_FUNCTION_P on USING_DECLs.

	PR c++/89391
	* typeck.c (build_reinterpret_cast_1): Don't handle void to
	&& conversion go through build_target_expr_with_type.

	PR c++/89390
	* error.c (qualified_name_lookup_error): Only call
	suggest_alternative_in_scoped_enum if name is IDENTIFIER_NODE.

2019-02-19  Tom Honermann  <tom@honermann.net>

	* name-lookup.c (get_std_name_hint): Added u8string as a name hint.

2019-02-18  Jason Merrill  <jason@redhat.com>

	PR c++/89336 - multiple stores in constexpr stmt.
	* constexpr.c (cxx_eval_store_expression): Preevaluate scalar or
	assigned value.

	* pt.c (check_explicit_specialization): If the declarator is a
	template-id, only check whether the arguments are dependent.

	Improve duplicate [[likely]] diagnostic.
	* parser.c (cp_parser_statement): Make attrs_loc a range.  Pass it
	to process_stmt_hotness_attribute.
	* cp-gimplify.c (process_stmt_hotness_attribute): Take attrs_loc.
	(genericize_if_stmt): Use likely/unlikely instead of predictor_name.

2019-02-17  Marek Polacek  <polacek@redhat.com>

	PR c++/89217 - ICE with list-initialization in range-based for loop.
	* constexpr.c (unshare_constructor): No longer static.
	* cp-tree.h (unshare_constructor): Declare.
	* semantics.c (finish_compound_literal): When dealing with a
	non-dependent expression in a template, return the original
	expression.  Pass LOOKUP_NO_NARROWING to digest_init_flags.

2019-02-13  Marek Polacek  <polacek@redhat.com>

	PR c++/89297 - ICE with OVERLOAD in template.
	* semantics.c (finish_compound_literal): Call
	instantiate_non_dependent_expr_sfinae.

2019-02-13  Alexandre Oliva <aoliva@redhat.com>

	PR c++/86379
	* cp-tree.h (USING_DECL_SCOPE): Use result rather than type.
	* name-lookup.c (strip_using_decl): Use USING_DECL_SCOPE.
	* search.c (protected_accessible_p): Follow USING_DECL_DECLS.
	(shared_member_p): Likewise.
	(lookup_member): Likewise.
	* decl.c (grok_special_member_properties): Skip USING_DECLs.
	* semantics.c (finish_omp_declare_simd_methods): Likewise.
	(finish_qualified_id_expr): Do not call shared_member_p with
	a dependent expr.

	PR c++/87322
	* pt.c (tsubst_lambda_expr): Avoid duplicate tsubsting.
	Move cp_evaluated resetting before signature tsubsting.
	(gen_elem_of_pack_expansion_instantiation): Separate local
	specializations per index.

2019-02-13  David Malcolm  <dmalcolm@redhat.com>

	PR c++/89036
	* class.c (add_method): Drop destructor assertion.

2019-02-13  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/88986
	* decl.c (make_typename_type): Allow for TYPE_PACK_EXPANSION as
	context (the first argument).
	* pt.c (tsubst, case TYPENAME_TYPE): Handle TYPE_PACK_EXPANSION
	as context.

2019-02-12  Jason Merrill  <jason@redhat.com>

	PR c++/89144 - link error with constexpr initializer_list.
	* call.c (convert_like_real) [ck_list]: Don't allocate a temporary
	array for an empty list.
	* typeck2.c (store_init_value): Don't use cxx_constant_init in a
	template.

2019-02-11  Jason Merrill  <jason@redhat.com>

	PR c++/89241 - ICE with __func__ in lambda in template.
	* pt.c (enclosing_instantiation_of): Also check
	instantiated_lambda_fn_p for the template context.

2019-02-11  Marek Polacek  <polacek@redhat.com>

	PR c++/89212 - ICE converting nullptr to pointer-to-member-function.
	* pt.c (tsubst_copy_and_build) <case CONSTRUCTOR>: Return early for
	null member pointer value.

2019-02-11  Jakub Jelinek  <jakub@redhat.com>

	PR c++/88977
	* pt.c (convert_nontype_argument): Pass true as manifestly_const_eval
	to maybe_constant_value calls.

2019-02-11  Marek Polacek  <polacek@redhat.com>

	* typeck2.c (digest_init_r): Remove commented code.

2019-02-11  Martin Sebor  <msebor@redhat.com>

	PR c++/87996
	* decl.c (compute_array_index_type_loc): Preserve signed sizes
	for diagnostics.  Call valid_array_size_p instead of error.
	* init.c (build_new_1): Compute size for diagnostic.  Call
	invalid_array_size_error
	(build_new): Call valid_array_size_p instead of error.

2019-02-07  Alexandre Oliva <aoliva@redhat.com>

	PR c++/86218
	* call.c (compare_ics): Deal with ck_aggr in either cs.

2019-02-06  David Malcolm  <dmalcolm@redhat.com>

	PR c++/71302
	* call.c (get_location_for_expr_unwinding_for_system_header): New
	function.
	(conversion_null_warnings): Use it when getting locations for
	EXPR, effectively adding a call to
	get_location_for_expr_unwinding_for_system_header for
	-Wconversion-null and making use of EXPR_LOCATION for
	-Wzero-as-null-pointer-constant.

2019-02-05  Jakub Jelinek  <jakub@redhat.com>

	PR c++/89187
	* optimize.c (maybe_thunk_body): Clear TREE_ADDRESSABLE on
	PARM_DECLs of the thunk.
	* lambda.c (maybe_add_lambda_conv_op): Likewise.

2019-02-05  Marek Polacek  <polacek@redhat.com>

	PR c++/89158 - by-value capture of constexpr variable broken.
	* call.c (convert_like_real) <case ck_user>: Call mark_exp_read
	instead of mark_rvalue_use.

2019-02-05  Alexandre Oliva <aoliva@redhat.com>

	PR c++/87770
	* pt.c (instantiates_primary_template_p): New.
	(type_dependent_expression_p): Use it.

2019-02-01  Jason Merrill  <jason@redhat.com>

	PR c++/88761 - ICE with reference capture of constant.
	* lambda.c (mark_const_cap_r): Do walk subtrees of DECL_EXPR for
	non-proxy decls.

2019-02-01  Marek Polacek  <polacek@redhat.com>

	PR c++/88325 - ICE with invalid out-of-line template member definition.
	* parser.c (cp_parser_class_name): Don't call make_typename_type
	for overloads.

2019-02-01  Jakub Jelinek  <jakub@redhat.com>

	PR c++/87175
	* parser.c (cp_parser_gnu_attributes_opt): Set ok to false
	if require_open failed.

2019-01-31  Marek Polacek  <polacek@redhat.com>

	PR c++/89083, c++/80864 - ICE with list initialization in template.
	* constexpr.c (adjust_temp_type): Use copy_node and change the type
	instead of using build_constructor.
	* decl.c (reshape_init_r): Don't reshape a digested initializer.
	Return the initializer for COMPOUND_LITERAL_P.

	PR c++/88983 - ICE with switch in constexpr function.
	* constexpr.c (cxx_eval_switch_expr): Use SWITCH_COND and SWITCH_BODY.
	(cxx_eval_constant_expression) <case COND_EXPR>: Don't look for the
	label in the else branch if we found it in the then branch.

2019-01-30  Jason Merrill  <jason@redhat.com>

	PR c++/88752 - ICE with lambda and constexpr if.
	* cp-tree.h (LAMBDA_EXPR_INSTANTIATED): New.
	* pt.c (tsubst_lambda_expr): Set it.
	(instantiated_lambda_fn_p): Check it.
	(enclosing_instantiation_of): Use it.

2019-01-31  Jakub Jelinek  <jakub@redhat.com>

	PR libstdc++/88170
	* cxx-pretty-print.c (pp_cxx_enumeration_constant): Print always as
	a C cast in pp_c_flag_gnu_v3 mode.

2019-01-30  Jakub Jelinek  <jakub@redhat.com>

	PR c++/88988
	* lambda.c (is_capture_proxy): Don't return true for
	DECL_OMP_PRIVATIZED_MEMBER artificial vars.

2019-01-30  Marek Polacek  <polacek@redhat.com>

	PR c++/89119 - ICE with value-initialization in template.
	* pt.c (tsubst_copy_and_build): Handle RANGE_EXPR.

2019-01-29  Jason Merrill  <jason@redhat.com>

	PR c++/86943 - wrong code converting lambda to function pointer.
	* lambda.c (maybe_add_lambda_conv_op): Use a template-id in the
	call.  Only forward parms for decltype.
	* pt.c (tsubst_copy_and_build) [CALL_EXPR]: Handle CALL_FROM_THUNK_P
	specially.
	* typeck.c (check_return_expr): Don't mess with a thunk call.

2019-01-28  Jason Merrill  <jason@redhat.com>

	PR c++/89089 - ICE with [[no_unique_address]].
	PR c++/88865 - wrong layout with [[no_unique_address]].
	* class.c (check_field_decls): A potentially-overlapping field makes
	the class non-layout-POD, but not non-empty.
	(end_of_class): Always consider empty data members.
	(layout_class_type): Set DECL_SIZE for empty fields.

2019-01-28  Marek Polacek  <polacek@redhat.com>

	PR c++/88358 - name wrongly treated as type.
	* parser.c (cp_parser_direct_declarator): Don't assume a qualified-id
	in parameter-list is a type if the function's declarator-id is not
	qualified.

2019-01-27  Marek Polacek  <polacek@redhat.com>

	PR c++/88815 - narrowing conversion lost in decltype.
	PR c++/78244 - narrowing conversion in template not detected.
	* cp-tree.h (CONSTRUCTOR_IS_DEPENDENT): New.
	* pt.c (instantiation_dependent_r): Consider a CONSTRUCTOR with
	CONSTRUCTOR_IS_DEPENDENT instantiation-dependent.
	* semantics.c (finish_compound_literal): When the compound literal
	isn't instantiation-dependent and the type isn't type-dependent,
	fall back to the normal processing.  Set CONSTRUCTOR_IS_DEPENDENT.

	PR c++/89024 - ICE with incomplete enum type.
	* call.c (standard_conversion): When converting an
	ARITHMETIC_TYPE_P to an incomplete type, return NULL.
	
2019-01-25  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/88969
	* call.c (build_op_delete_call): Implement 7.6.2.5/(10.1).
	* decl2.c (coerce_delete_type): Use build_pointer_type instead
	of TYPE_POINTER_TO.

2019-01-24  Jason Merrill  <jason@redhat.com>

	PR c++/89001 - mangling of reference temporaries
	* cp-tree.h (struct saved_scope): Add ref_temp_count.
	(current_ref_temp_count): New macro.
	* mangle.c (mangle_ref_init_variable): Use it.
	* typeck2.c (store_init_value): Clear it.
	* call.c (make_temporary_var_for_ref_to_temp): Copy public and
	comdat.

2019-01-24  Jakub Jelinek  <jakub@redhat.com>

	PR c++/88976
	* semantics.c (finish_omp_cancel): Diagnose more than one if
	on #pragma omp cancel with different modifiers.  Use
	maybe_convert_cond when not in template or build_x_binary_op
	otherwise.

2019-01-23  Marek Polacek  <polacek@redhat.com>

	PR c++/88757 - qualified name treated wrongly as type.
	* parser.c (cp_parser_direct_declarator): Don't treat qualified-ids
	in parameter-list as types if name lookup for declarator-id didn't
	find one or more function templates.

2019-01-23  Jakub Jelinek  <jakub@redhat.com>

	PR c/44715
	* cp-gimplify.c (genericize_cp_loop): Call begin_bc_block only
	after genericizing cond and incr expressions.

	PR c++/88984
	* cp-gimplify.c (genericize_switch_stmt): Move cond genericization
	before the begin_bc_block call.

2019-01-21  Jason Merrill  <jason@redhat.com>

	PR c++/87893 - constexpr ctor ICE on ARM.
	PR c++/88293 - ICE with comma expression.
	* constexpr.c (initialized_type): Don't shortcut non-void type.
	Handle COMPOUND_EXPR.
	(cxx_eval_outermost_constant_expr): Return early for void type.

2019-01-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/88949
	* optimize.c (cxx_copy_decl): New function.
	(clone_body): Use it instead of copy_decl_no_change.

	PR sanitizer/88901
	* typeck.c (cp_build_binary_op): Don't instrument
	SANITIZE_POINTER_COMPARE if processing_template_decl.
	(pointer_diff): Similarly for SANITIZE_POINTER_SUBTRACT.

2019-01-18  Jason Merrill  <jason@redhat.com>

	PR c++/88875 - error with explicit list constructor.
	* call.c (reference_binding): Don't modify EXPR.  Set
	need_temporary_p on the ck_user conversion for a temporary.
	(convert_like_real): Check it.

2019-01-18  H.J. Lu  <hongjiu.lu@intel.com>

	PR c/51628
	PR c/88664
	* call.c (convert_for_arg_passing): Upate the
	warn_for_address_or_pointer_of_packed_member call.
	* typeck.c (convert_for_assignment): Likewise.

2019-01-17  Jason Merrill  <jason@redhat.com>

	PR c++/86205 - ICE with ?: of throw and template-id.
	* pt.c (resolve_nondeduced_context_or_error): Split out from...
	* typeck.c (decay_conversion): ...here.
	* call.c (build_conditional_expr_1): Use it.

	PR c++/86740, ICE with constexpr if and nested generic lambdas.
	* tree.c (cp_walk_subtrees): Handle LAMBDA_EXPR.

2019-01-17  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokdeclarator): Use typespec_loc in error messages
	about 'auto' and trailing return type.

2019-01-17  David Malcolm  <dmalcolm@redhat.com>

	PR c++/88699
	* class.c (add_method): Don't use DECL_DESTRUCTOR_P on
	USING_DECLs.

2019-01-17  Nathan Sidwell  <nathan@acm.org>

	PR c++/86610
	* semantics.c (process_outer_var_ref): Only skip dependent types
	in templates.

2019-01-17  Alexandre Oliva <aoliva@redhat.com>

	PR c++/87768
	* cp-tree.h (saved_scope): Add suppress_location_wrappers.
	* name-lookup.c (do_push_to_top_level): Save and reset it.
	(do_pop_from_top_level): Restore it.

	PR c++/86648
	* pt.c (make_template_placeholder): Use auto_identifier.
	(is_auto): Drop CLASS_PLACEHOLDER_TEMPLATE test.
	* error.c (dump_type): Handle template placeholders.
	* cxx-pretty-print.c (pp_cx_unqualified_id): Likewise.

	PR c++/88146
	* cvt.c (convert_to_void): Handle all cdtor calls as if
	returning void.

2019-01-16  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokdeclarator): Use locations[ds_storage_class] in
	error messages about ill-formed uses of mutable.

2019-01-16  Marek Polacek  <polacek@redhat.com>

	PR c++/78244 - narrowing conversion in template not detected.
	* call.c (perform_implicit_conversion_flags): Set
	IMPLICIT_CONV_EXPR_BRACED_INIT.
	* cp-tree.h (IMPLICIT_CONV_EXPR_BRACED_INIT): New.
	* pt.c (tsubst_copy_and_build): Use it.

2019-01-15  David Malcolm  <dmalcolm@redhat.com>

	PR c++/88795
	* pt.c (build_deduction_guide): Bail out if tsubst_arg_types
	fails.

2019-01-15  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (start_decl): Improve error location.
	* decl2.c (grokfield): Likewise.

2019-01-15  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokdeclarator): Move further up the location_t loc
	declaration and use the location when building a TYPE_DECL for
	a typedef name.
	* decl2.c (grokbitfield): Use DECL_SOURCE_LOCATION in the error
	about an ill-formed bit-field as typedef.

2019-01-14  Marek Polacek  <polacek@redhat.com>

	PR c++/88830 - ICE with abstract class.
	* decl2.c (maybe_emit_vtables): Check CLASSTYPE_LAZY_DESTRUCTOR.
	Fix formatting.

	PR c++/88825 - ICE with bogus function return type deduction.
	* typeck.c (can_do_nrvo_p): Check error_mark_node.

2019-01-14  Tom Honermann  <tom@honermann.net>

	Implement P0482R5, char8_t: A type for UTF-8 characters and strings
	* cvt.c (type_promotes_to): Handle char8_t promotion.
	* decl.c (grokdeclarator): Handle invalid type specifier
	combinations involving char8_t.
	* lex.c (init_reswords): Add char8_t as a reserved word.
	* mangle.c (write_builtin_type): Add name mangling for char8_t (Du).
	* parser.c (cp_keyword_starts_decl_specifier_p)
	(cp_parser_simple_type_specifier): Recognize char8_t as a simple
	type specifier.
	(cp_parser_string_literal): Use char8_array_type_node for the type
	of CPP_UTF8STRING.
	(cp_parser_set_decl_spec_type): Tolerate char8_t typedefs in system
	headers.
	* rtti.c (emit_support_tinfos): type_info support for char8_t.
	* tree.c (char_type_p): Recognize char8_t as a character type.
	* typeck.c (string_conv_p): Handle conversions of u8 string
	literals of char8_t type.
	(check_literal_operator_args): Handle UDLs with u8 string literals
	of char8_t type.
	* typeck2.c (ordinary_char_type_p): New.
	(digest_init_r): Disallow initializing a char array with a u8 string
	literal.

2019-01-14  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/88263
	* decl2.c (get_tls_wrapper_fn): Use DECL_SOURCE_LOCATION
	as location of the TLS wrapper.

2019-01-12  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (cp_finish_decl): Improve error location.
	* decl2.c (grokfield): Likewise, improve two locations.

2019-01-11  Marek Polacek  <polacek@redhat.com>

	PR c++/88692, c++/87882 - -Wredundant-move false positive with *this.
	* typeck.c (maybe_warn_pessimizing_move): Return if ARG isn't
	ADDR_EXPR.

2019-01-11  Jason Merrill  <jason@redhat.com>

	PR c++/88312 - pack expansion of decltype.
	* pt.c (instantiation_dependent_r): A template non-type parameter
	pack is instantiation-dependent.

2019-01-11  Jason Merrill  <jason@redhat.com>

	PR c++/88613 - ICE with use of const var in lambda.
	* expr.c (mark_use): Fix location wrapper handling.
	* cp-gimplify.c (cp_fold_maybe_rvalue): Call mark_rvalue_use.

2019-01-11  Tobias Burnus  <burnus@net-b.de>

	PR C++/88114
	* decl2.c (maybe_emit_vtables): If needed, generate code for
	the destructor of an abstract class.
	(mark_used): Update comment for older function-name change.

2019-01-11  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (start_decl): Improve error location.
	(grokdeclarator): Likewise, improve two locations.

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

	PR other/16615

	* cp-tree.h: Mechanically replace "can not" with "cannot".
	* parser.c: Likewise.
	* pt.c: Likewise.

2019-01-08  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grok_reference_init): Improve error location.
	(grokdeclarator): Likewise, improve two locations.

2019-01-08  Marek Polacek  <polacek@redhat.com>

	PR c++/88538 - braced-init-list in template-argument-list.
	* parser.c (cp_parser_template_argument): Handle braced-init-list when
	in C++20.

	PR c++/88548 - this accepted in static member functions.
	* parser.c (cp_debug_parser): Adjust printing of
	local_variables_forbidden_p.
	(cp_parser_new): Set local_variables_forbidden_p to 0 rather than false.
	(cp_parser_primary_expression): When checking
	local_variables_forbidden_p, use THIS_FORBIDDEN or
	LOCAL_VARS_FORBIDDEN.
	(cp_parser_lambda_body): Update the type of
	local_variables_forbidden_p.  Set it to 0 rather than false.
	(cp_parser_condition): Adjust call to cp_parser_declarator.
	(cp_parser_explicit_instantiation): Likewise.
	(cp_parser_init_declarator): Likewise.
	(cp_parser_declarator): New parameter.  Use it.
	(cp_parser_direct_declarator): New parameter.  Use it to set
	local_variables_forbidden_p.  Adjust call to cp_parser_declarator.
	(cp_parser_type_id_1): Adjust call to cp_parser_declarator.
	(cp_parser_parameter_declaration): Likewise.
	(cp_parser_default_argument): Update the type of
	local_variables_forbidden_p.  Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
	rather than true.
	(cp_parser_member_declaration): Tell cp_parser_declarator if we saw
	'static' or 'friend'.
	(cp_parser_exception_declaration): Adjust call to cp_parser_declarator.
	(cp_parser_late_parsing_default_args): Update the type of
	local_variables_forbidden_p.  Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
	rather than true.
	(cp_parser_cache_defarg): Adjust call to cp_parser_declarator.
	(cp_parser_objc_class_ivars): Likewise.
	(cp_parser_objc_struct_declaration): Likewise.
	(cp_parser_omp_for_loop_init): Likewise.
	* parser.h (cp_parser): Change the type of local_variables_forbidden_p
	to unsigned char.
	(LOCAL_VARS_FORBIDDEN, LOCAL_VARS_AND_THIS_FORBIDDEN, THIS_FORBIDDEN):
	Define.

2019-01-08  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (start_decl): Improve permerror location.

2019-01-08  Jonathan Wakely  <jwakely@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>

	PR c++/88554
	* decl.c (finish_function): For -Wreturn-type don't add a return *this;
	fixit hint if current_class_ref is NULL.  Use a single if instead of
	two nested ones.

2019-01-07  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (start_decl): Improve two error_at locations.
	(expand_static_init): Likewise.

2019-01-07  Marek Polacek  <polacek@redhat.com>

	PR c++/88741 - wrong error with initializer-string.
	* decl.c (cp_complete_array_type): Strip any location wrappers.

2019-01-07  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	PR c++/88261
	PR c++/69338
	PR c++/69696
	PR c++/69697
	* cp-tree.h (LOOKUP_ALLOW_FLEXARRAY_INIT): New flag value.
	* typeck2.c (digest_init_r): Raise an error for non-static
	initialization of a flexible array member.
	(process_init_constructor, massage_init_elt,
	process_init_constructor_array, process_init_constructor_record,
	process_init_constructor_union, process_init_constructor): Add the
	flags parameter and pass it thru.
	(store_init_value): Pass LOOKUP_ALLOW_FLEXARRAY_INIT parameter to
	digest_init_flags for static decls.

2019-01-07  Jakub Jelinek  <jakub@redhat.com>

	PR c++/85052
	* cp-tree.h (cp_build_vec_convert): Declare.
	* parser.c (cp_parser_postfix_expression): Parse
	__builtin_convertvector.
	* constexpr.c: Include fold-const-call.h.
	(cxx_eval_internal_function): Handle IFN_VEC_CONVERT.
	(potential_constant_expression_1): Likewise.
	* semantics.c (cp_build_vec_convert): New function.
	* pt.c (tsubst_copy_and_build): Handle CALL_EXPR to
	IFN_VEC_CONVERT.

2019-01-03  Jakub Jelinek  <jakub@redhat.com>

	PR c++/88636
	* decl.c (builtin_function_1): Return result of pushdecl_top_level
	or pushdecl rather than decl.

2019-01-03  Paolo Carlini  <paolo.carlini@oracle.com>

	* tree.c (handle_nodiscard_attribute): Improve warning location.

2019-01-02  Marek Polacek  <polacek@redhat.com>

	PR c++/88612 - ICE with -Waddress-of-packed-member.
	* call.c (convert_for_arg_passing): Only give warnings with tf_warning.
	* typeck.c (convert_for_assignment): Likewise.

	PR c++/88631 - CTAD failing for value-initialization.
	* typeck2.c (build_functional_cast): Try deducing the template
	arguments even if there are no arguments to deduce from.

2019-01-01  Jakub Jelinek  <jakub@redhat.com>

	Update copyright years.
\f
Copyright (C) 2019 Free Software Foundation, Inc.

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