path: root/gcc/cp/ChangeLog

2022-09-26  Marek Polacek  <polacek@redhat.com>

	PR c++/106656
	* typeck2.cc (array_string_literal_compatible_p): Allow
	initializing arrays of char or unsigned char by a UTF-8 string literal.

2022-09-26  Marek Polacek  <polacek@redhat.com>

	PR c++/106784
	* method.cc (is_convertible_helper): New.
	(is_convertible): Use it.
	(is_nothrow_convertible): Likewise.

2022-09-26  Patrick Palka  <ppalka@redhat.com>

	PR c++/107033
	* module.cc (trees_in::decl_value): In the MK_partial case for
	a variable template partial specialization, pass decl_p=true to
	add_mergeable_specialization, and set spec to the VAR_DECL not
	the TEMPLATE_DECL.
	* pt.cc (add_mergeable_specialization): For a variable template
	partial specialization, set the TREE_TYPE of the new
	DECL_TEMPLATE_SPECIALIZATIONS node to the TREE_TYPE of the
	VAR_DECL not the VAR_DECL itself.

2022-09-23  Marek Polacek  <polacek@redhat.com>

	PR c++/106784
	* constraint.cc (diagnose_trait_expr): Handle CPTK_IS_CONVERTIBLE
	and CPTK_IS_NOTHROW_CONVERTIBLE.
	* cp-objcp-common.cc (names_builtin_p): Handle RID_IS_CONVERTIBLE
	RID_IS_NOTHROW_CONVERTIBLE.
	* cp-tree.h (enum cp_trait_kind): Add CPTK_IS_CONVERTIBLE and
	CPTK_IS_NOTHROW_CONVERTIBLE.
	(is_convertible): Declare.
	(is_nothrow_convertible): Likewise.
	* cxx-pretty-print.cc (pp_cxx_trait_expression): Handle
	CPTK_IS_CONVERTIBLE and CPTK_IS_NOTHROW_CONVERTIBLE.
	* method.cc (is_convertible): New.
	(is_nothrow_convertible): Likewise.
	* parser.cc (cp_parser_primary_expression): Handle RID_IS_CONVERTIBLE
	and RID_IS_NOTHROW_CONVERTIBLE.
	(cp_parser_trait_expr): Likewise.
	* semantics.cc (trait_expr_value): Handle CPTK_IS_CONVERTIBLE and
	CPTK_IS_NOTHROW_CONVERTIBLE.
	(finish_trait_expr): Likewise.

2022-09-23  Marek Polacek  <polacek@redhat.com>

	PR c++/106983
	* typeck2.cc (split_nonconstant_init_1): Check TYPE_P.

2022-09-22  Patrick Palka  <ppalka@redhat.com>

	PR c++/106826
	* module.cc (trees_out::decl_value): Use get_template_info in
	the MK_partial case to handle both VAR_DECL and TYPE_DECL.
	(trees_out::key_mergeable): Likewise.
	(trees_in::key_mergeable): Likewise.
	(has_definition): Consider DECL_INITIAL of a partial variable
	template specialization.
	(depset::hash::make_dependency): Handle partial variable template
	specializations too.

2022-09-20  Patrick Palka  <ppalka@redhat.com>

	* decl.cc (cp_finish_decl): After updating the deduced type of a
	VAR_DECL, also update the corresponding TEMPLATE_DECL if there
	is one.

2022-09-20  Patrick Palka  <ppalka@redhat.com>

	PR c++/106761
	* module.cc (trees_out::type_node) <case TYPE_PACK_EXPANSION>:
	Stream PACK_EXPANSION_EXTRA_ARGS.
	(trees_in::tree_node) <case TYPE_PACK_EXPANSION>: Likewise.

2022-09-17  Patrick Palka  <ppalka@redhat.com>

	* module.cc (friend_from_decl_list): Don't consider
	CLASSTYPE_TEMPLATE_INFO for a TYPENAME_TYPE friend.
	(trees_in::read_class_def): Don't add to
	CLASSTYPE_BEFRIENDING_CLASSES for a TYPENAME_TYPE friend.

2022-09-16  Patrick Palka  <ppalka@redhat.com>

	PR c++/92505
	* constexpr.cc (cxx_eval_component_reference): Check non_constant_p
	sooner.  In C++14 or later, reject a DECL_MUTABLE_P member access
	only if CONSTRUCTOR_MUTABLE_POISION is also set.

2022-09-16  Jason Merrill  <jason@redhat.com>

	PR c++/106858
	* parser.cc (cp_parser_omp_var_list_no_open): Pass the
	initial token location down.
	* semantics.cc (finish_omp_clauses): Check
	invalid_nonstatic_memfn_p.
	* typeck.cc (invalid_nonstatic_memfn_p): Handle null TREE_TYPE.

2022-09-15  Richard Biener  <rguenther@suse.de>

	* decl.cc (cxx_init_decl_processing): Inline last
	build_void_list_node call.
	(build_void_list_node): Remove.

2022-09-14  Julian Brown  <julian@codesourcery.com>

	* semantics.cc (finish_omp_clauses): Likewise.

2022-09-13  Patrick Palka  <ppalka@redhat.com>

	* cp-tree.h (mark_used): Remove single-parameter overload.  Add
	default argument to the two-parameter overload.
	* decl2.cc (mark_used): Likewise.

2022-09-13  Patrick Palka  <ppalka@redhat.com>

	* cp-tree.h (cxx_constant_value): Define two-parameter version
	that omits the object parameter.
	* decl.cc (build_explicit_specifier): Omit NULL_TREE object
	argument to cxx_constant_value.
	* except.cc (build_noexcept_spec): Likewise.
	* pt.cc (expand_integer_pack): Likewise.
	(fold_targs_r): Likewise.
	* semantics.cc (finish_if_stmt_cond): Likewise.

2022-09-13  Patrick Palka  <ppalka@redhat.com>

	* decl.cc (build_explicit_specifier): Pass complain to
	cxx_constant_value.
	* except.cc (build_noexcept_spec): Likewise.
	* pt.cc (expand_integer_pack): Likewise.
	(tsubst_function_decl): Propagate error_mark_node returned
	from build_explicit_specifier.

2022-09-12  Patrick Palka  <ppalka@redhat.com>

	* call.cc (build_conditional_expr): Adjust calls to
	'_sfinae'-suffixed functions.
	(build_temp): Likewise.
	(convert_like_internal): Likewise.
	(convert_arg_to_ellipsis): Likewise.
	(build_over_call): Likewise.
	(build_cxx_call): Likewise.
	(build_new_method_call): Likewise.
	* constexpr.cc (cxx_eval_outermost_constant_expr): Likewise.
	(cxx_constant_value_sfinae): Rename to ...
	(cxx_constant_value): ... this.  Document its default arguments.
	(fold_non_dependent_expr): Adjust function comment.
	* cp-tree.h (instantiate_non_dependent_expr_sfinae): Rename to ...
	(instantiate_non_dependent_expr): ... this.  Give its 'complain'
	parameter a default argument.
	(get_target_expr_sfinae, get_target_expr): Likewise.
	(require_complete_type_sfinae, require_complete_type): Likewise.
	(abstract_virtuals_error_sfinae, abstract_virtuals_error):
	Likewise.
	(cxx_constant_value_sfinae, cxx_constant_value): Likewise.
	* cvt.cc (build_up_reference): Adjust calls to '_sfinae'-suffixed
	functions.
	(ocp_convert): Likewise.
	* decl.cc (build_explicit_specifier): Likewise.
	* except.cc (build_noexcept_spec): Likewise.
	* init.cc (build_new_1): Likewise.
	* pt.cc (expand_integer_pack): Likewise.
	(instantiate_non_dependent_expr_internal): Adjust function
	comment.
	(instantiate_non_dependent_expr): Rename to ...
	(instantiate_non_dependent_expr_sfinae): ... this.  Document its
	default argument.
	(tsubst_init): Adjust calls to '_sfinae'-suffixed functions.
	(fold_targs_r): Likewise.
	* semantics.cc (finish_compound_literal): Likewise.
	(finish_decltype_type): Likewise.
	(cp_build_bit_cast): Likewise.
	* tree.cc (build_cplus_new): Likewise.
	(get_target_expr): Rename to ...
	(get_target_expr_sfinae): ... this.  Document its default
	argument.
	* typeck.cc (require_complete_type): Rename to ...
	(require_complete_type_sfinae): ... this.  Document its default
	argument.
	(cp_build_array_ref): Adjust calls to '_sfinae'-suffixed
	functions.
	(convert_arguments): Likewise.
	(cp_build_binary_op): Likewise.
	(build_static_cast_1): Likewise.
	(cp_build_modify_expr): Likewise.
	(convert_for_initialization): Likewise.
	* typeck2.cc (abstract_virtuals_error): Rename to ...
	(abstract_virtuals_error_sfinae): ... this. Document its default
	argument.
	(build_functional_cast_1): Adjust calls to '_sfinae'-suffixed
	functions.

2022-09-12  Patrick Palka  <ppalka@redhat.com>

	PR c++/101906
	* pt.cc (tsubst_template_args): Set cp_evaluated here.
	(tsubst_aggr_type): Not here.

2022-09-12  Jason Merrill  <jason@redhat.com>

	PR c++/106893
	PR c++/90451
	* decl.cc (cp_finish_decl): Call mark_single_function.

2022-09-12  Jason Merrill  <jason@redhat.com>

	PR c++/93259
	* pt.cc (type_dependent_expression_p): Treat a compound
	literal of array-of-unknown-bound type like a variable.

2022-09-12  Jason Merrill  <jason@redhat.com>

	PR c++/106567
	* lambda.cc (type_deducible_expression_p): Check
	array_of_unknown_bound_p.

2022-09-12  Jonathan Wakely  <jwakely@redhat.com>

	PR c++/86491
	* decl2.cc (constrain_class_visibility): Adjust wording of
	-Wsubobject-linkage for cases where anonymous
	namespaces aren't used.
	* tree.cc (decl_anon_ns_mem_p): Now only true for actual anonymous
	namespace members, rename old semantics to...
	(decl_internal_context_p): ...this.
	* cp-tree.h, name-lookup.cc, pt.cc: Adjust.

2022-09-08  Jonathan Wakely  <jwakely@redhat.com>

	PR c++/106838
	* class.cc (type_has_virtual_destructor): Return false for
	union types.
	* semantics.cc (check_trait_type): Add KIND parameter to support
	different sets of requirements.
	(finish_trait_expr): Pass KIND argument for relevant traits.

2022-09-08  Patrick Palka  <ppalka@redhat.com>

	PR c++/99130
	* decl2.cc (maybe_instantiate_decl): Adjust function comment.
	Check VAR_OR_FUNCTION_DECL_P.  Pull out the disjunction into ...
	(mark_used): ... here, removing the decl_maybe_constant_var_p
	part of it.

2022-09-07  Jason Merrill  <jason@redhat.com>

	PR c++/106793
	* decl.cc (grokdeclarator): Improve placeholder diagnostics.
	* parser.cc (cp_parser_type_id_1): Add fixit.

2022-09-07  Arsen Arsenović  <arsen@aarsen.me>

	PR c++/106188
	PR c++/106713
	* coroutines.cc (coro_rewrite_function_body): Ensure we have a
	BIND_EXPR wrapping the function body.

2022-09-07  Jakub Jelinek  <jakub@redhat.com>

	PR c++/106829
	* semantics.cc (finish_omp_target_clauses): If current_function_decl
	isn't a nonstatic member function, don't set data.current_object to
	non-NULL.

2022-09-06  Jason Merrill  <jason@redhat.com>

	* decl.cc (grok_op_properties): Return sooner for C++23 op[].

2022-09-06  Jakub Jelinek  <jakub@redhat.com>

	* parser.cc (cp_parser_omp_clause_doacross_sink): Don't verify val
	in omp_cur_iteration - 1 has integer_type_node type.

2022-09-06  Jakub Jelinek  <jakub@redhat.com>

	* pt.cc (tsubst_expr) <case OMP_ORDERED>: If OMP_BODY was NULL, keep
	it NULL after instantiation too.

2022-09-03  Jakub Jelinek  <jakub@redhat.com>

	* parser.cc (cp_parser_omp_clause_name): Handle doacross.
	(cp_parser_omp_clause_depend_sink): Renamed to ...
	(cp_parser_omp_clause_doacross_sink): ... this.  Add depend_p
	argument.  Handle parsing of doacross(sink:omp_cur_iteration-1).  Use
	OMP_CLAUSE_DOACROSS_SINK_NEGATIVE instead of
	OMP_CLAUSE_DEPEND_SINK_NEGATIVE, build OMP_CLAUSE_DOACROSS instead
	of OMP_CLAUSE_DEPEND and set OMP_CLAUSE_DOACROSS_DEPEND flag on it.
	(cp_parser_omp_clause_depend): Use OMP_CLAUSE_DOACROSS_SINK and
	OMP_CLAUSE_DOACROSS_SOURCE instead of OMP_CLAUSE_DEPEND_SINK and
	OMP_CLAUSE_DEPEND_SOURCE, build OMP_CLAUSE_DOACROSS for depend(source)
	and set OMP_CLAUSE_DOACROSS_DEPEND on it.
	(cp_parser_omp_clause_doacross): New function.
	(cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DOACROSS.
	(cp_parser_omp_depobj): Use OMP_CLAUSE_DEPEND_INVALID instead of
	OMP_CLAUSE_DEPEND_SOURCE.
	(cp_parser_omp_for_loop): Don't diagnose here linear clause together
	with ordered with argument.
	(cp_parser_omp_simd): Don't diagnose ordered clause with argument on
	for simd.
	(OMP_ORDERED_DEPEND_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DOACROSS.
	(cp_parser_omp_ordered): Handle also doacross and adjust for it
	diagnostic wording.
	* pt.cc (tsubst_omp_clause_decl): Use
	OMP_CLAUSE_DOACROSS_SINK_NEGATIVE instead of
	OMP_CLAUSE_DEPEND_SINK_NEGATIVE.
	(tsubst_omp_clauses): Handle OMP_CLAUSE_DOACROSS.
	(tsubst_expr): Use OMP_CLAUSE_DEPEND_INVALID instead of
	OMP_CLAUSE_DEPEND_SOURCE.
	* semantics.cc (cp_finish_omp_clause_depend_sink): Rename to ...
	(cp_finish_omp_clause_doacross_sink): ... this.
	(finish_omp_clauses): Handle OMP_CLAUSE_DOACROSS.  Don't handle
	OMP_CLAUSE_DEPEND_SOURCE and OMP_CLAUSE_DEPEND_SINK.

2022-09-02  David Malcolm  <dmalcolm@redhat.com>

	PR c/90885
	* cp-tree.h (class cp_expr): Add bitfield m_decimal.  Clear it in
	existing ctors.  Add ctor that allows specifying its value.
	(cp_expr::decimal_p): New accessor.
	* parser.cc (cp_parser_expression_stack_entry::flags): New field.
	(cp_parser_primary_expression): Set m_decimal of cp_expr when
	handling numbers.
	(cp_parser_binary_expression): Extract flags from token when
	populating stack.  Call check_for_xor_used_as_pow.

2022-09-01  Marek Polacek  <polacek@redhat.com>

	* cp-tree.h (maybe_strip_ref_conversion): Remove.

2022-08-30  Ulrich Drepper  <drepper@gmail.com>

	* Make-lang.in: Add rule to rebuild std-name-hint.h from
	std-name-hint.gperf.
	* name-lookup.cc (get_std_name_hint): Remove hints array.
	Use gperf-generated class std_name_hint_lookup.
	Include "std-name-hint.h".
	* std-name-hint.gperf: New file.
	* std-name-hint.h: New file.  Generated from the .gperf file.

2022-08-30  Marek Polacek  <polacek@redhat.com>

	PR c++/106759
	* cp-objcp-common.cc (names_builtin_p): Handle RID_IS_NOTHROW_ASSIGNABLE
	and RID_IS_NOTHROW_CONSTRUCTIBLE.

2022-08-29  Marek Polacek  <polacek@redhat.com>

	PR c++/106712
	* decl.cc (grokdeclarator): Reverse the order of arguments to
	attr_chainon.

2022-08-26  Marek Polacek  <polacek@redhat.com>

	PR c++/81159
	* typeck.cc (maybe_warn_self_move): New.
	(cp_build_modify_expr): Call maybe_warn_self_move.

2022-08-25  Marek Polacek  <polacek@redhat.com>

	* cp-tree.h (enum cp_tree_index): Remove CTI_NULLPTR, CTI_NULLPTR_TYPE.
	Move it to c_tree_index.
	(nullptr_node): No longer define here.
	(nullptr_type_node): Likewise.
	(NULLPTR_TYPE_P): Likewise.
	* decl.cc (cxx_init_decl_processing): Only keep C++-specific nullptr
	initialization; move the shared code to c_common_nodes_and_builtins.

2022-08-25  Jason Merrill  <jason@redhat.com>

	* call.cc (unsafe_return_slot_p): Return 2 for *this in a
	constructor.

2022-08-23  Marek Polacek  <polacek@redhat.com>

	* typeck.cc (maybe_warn_pessimizing_move): Don't warn about
	redundant std::move when the expression was wrapped in { }.

2022-08-17  Marek Polacek  <polacek@redhat.com>

	PR c++/90428
	* typeck.cc (can_do_rvo_p): Rename to ...
	(can_elide_copy_prvalue_p): ... this.
	(maybe_warn_pessimizing_move): Extend the
	-Wredundant-move warning to warn about std::move on a
	const-qualified object.

2022-08-17  Marek Polacek  <polacek@redhat.com>

	PR c++/89780
	* pt.cc (tsubst_copy_and_build) <case CALL_EXPR>: Maybe suppress
	-Wpessimizing-move.
	* typeck.cc (maybe_warn_pessimizing_move): Don't issue warnings
	if they are suppressed.
	(check_return_expr): Disable -Wpessimizing-move when returning
	a dependent expression.

2022-08-17  Marek Polacek  <polacek@redhat.com>

	PR c++/106276
	* call.cc (build_over_call): Call maybe_warn_pessimizing_move.
	* cp-tree.h (maybe_warn_pessimizing_move): Declare.
	* decl.cc (build_aggr_init_full_exprs): Call
	maybe_warn_pessimizing_move.
	* typeck.cc (maybe_warn_pessimizing_move): Handle TREE_LIST and
	CONSTRUCTOR.  Add a bool parameter and use it.  Adjust a diagnostic
	message.
	(check_return_expr): Adjust the call to maybe_warn_pessimizing_move.

2022-08-17  Tobias Burnus  <tobias@codesourcery.com>
	    Chung-Lin Tang  <cltang@codesourcery.com>

	PR c++/104493
	* cp-objcp-common.h (LANG_HOOKS_OMP_MAPPABLE_TYPE): Remove.
	* cp-tree.h (cp_omp_mappable_type, cp_omp_emit_unmappable_type_notes):
	Remove.
	* decl2.cc (cp_omp_mappable_type_1, cp_omp_mappable_type,
	cp_omp_emit_unmappable_type_notes): Remove.
	(cplus_decl_attributes): Call omp_mappable_type instead of
	removed langhook.
	* decl.cc (cp_finish_decl): Likewise; call cxx_incomplete_type_inform
	in lieu of cp_omp_emit_unmappable_type_notes.
	* semantics.cc (finish_omp_clauses): Likewise.

2022-08-16  Tom Honermann  <tom@honermann.net>

	PR c++/106423
	* parser.cc (cp_lexer_saving_tokens): Add comment regarding
	diagnostic requirements.

2022-08-16  Jakub Jelinek  <jakub@redhat.com>

	* typeck.cc (cp_build_modify_expr): Implement
	P2327R1 - De-deprecating volatile compound operations.  Don't warn
	for |=, &= or ^= with volatile lhs.
	* expr.cc (mark_use) <case MODIFY_EXPR>: Adjust warning wording,
	leave out simple.

2022-08-15  Marek Polacek  <polacek@redhat.com>

	PR c++/106276
	* typeck.cc (can_do_rvo_p): New.
	(maybe_warn_pessimizing_move): Warn when moving a temporary object
	in a return statement prevents copy elision.

2022-08-11  Marek Polacek  <polacek@redhat.com>

	PR middle-end/102633
	* decl.cc (cp_finish_decl): Call suppress_warning.

2022-08-07  Jakub Jelinek  <jakub@redhat.com>

	PR c++/88174
	* constexpr.cc (cxx_eval_store_expression): Handle REALPART_EXPR
	and IMAGPART_EXPR.  Change ctors from releasing_vec to
	auto_vec<tree *>, adjust all uses.  For !preeval, update ctors
	vector.

2022-07-31  Lewis Hyatt  <lhyatt@gmail.com>

	PR c++/66290
	* parser.cc (cp_lexer_new_main): Rename global done_lexing to
	override_libcpp_locations.

2022-07-31  Jason Merrill  <jason@redhat.com>

	PR c++/106369
	* constexpr.cc (reduced_constant_expression_p): Return false
	if a CONSTRUCTOR initializes an empty field.

2022-07-29  Jakub Jelinek  <jakub@redhat.com>

	PR c++/106448
	* parser.cc (cp_parser_omp_atomic): For simple cast followed by
	CPP_QUERY token, don't try cp_parser_binary_operation if compare
	is true.

2022-07-26  Marek Polacek  <polacek@redhat.com>

	PR c++/106311
	* pt.cc (redeclare_class_template): Check DECL_P before accessing
	DECL_SOURCE_LOCATION.

2022-07-26  Jason Merrill  <jason@redhat.com>

	PR c++/106230
	* semantics.cc (finish_for_stmt): Check stmts_are_full_exprs_p.

2022-07-25  Jason Merrill  <jason@redhat.com>

	PR c++/87729
	* class.cc (warn_hidden): Remove shortcut.

2022-07-22  Patrick Palka  <ppalka@redhat.com>

	PR c++/106366
	* pt.cc (do_class_deduction): Don't consider TYPE_HAS_LIST_CTOR
	when setting try_list_ctor.  Reset args even when try_list_ctor
	is true and there are no list candidates.  Call resolve_args on
	the reset args.  Rename try_list_ctor to try_list_cand.

2022-07-22  Martin Liska  <mliska@suse.cz>

	PR other/106370
	* init.cc (sort_mem_initializers): Remove continue as last stmt
	in a loop.

2022-07-21  Jason Merrill  <jason@redhat.com>

	PR c++/106361
	* decl.cc (move_fn_p): Remove assert.

2022-07-21  Jason Merrill  <jason@redhat.com>

	DR 2084
	PR c++/98423
	* method.cc (walk_field_subobs): Fix DMI in union case.

2022-07-19  Patrick Palka  <ppalka@redhat.com>

	PR c++/94894
	PR c++/105766
	PR c++/106201
	* call.cc (enum conversion_kind): Add ck_deferred_bad enumerator.
	(has_next): Return false for it.
	(reference_binding): Return a ck_deferred_bad conversion instead
	of an actual bad conversion when LOOKUP_SHORTCUT_BAD_CONVS is set.
	Remove now obsolete early exit for the incomplete TO case.
	(implicit_conversion_1): Don't mask out LOOKUP_SHORTCUT_BAD_CONVS.
	(add_function_candidate): Set LOOKUP_SHORTCUT_BAD_CONVS iff
	shortcut_bad_convs.
	(missing_conversion_p): Also return true for a ck_deferred_bad
	conversion.
	* cp-tree.h (LOOKUP_SHORTCUT_BAD_CONVS): Define.

2022-07-19  Jonathan Wakely  <jwakely@redhat.com>

	* cp-objcp-common.cc (names_builtin_p): Return true for
	RID_REF_CONSTRUCTS_FROM_TEMPORARY and
	RID_REF_CONVERTS_FROM_TEMPORARY.

2022-07-15  Marek Polacek  <polacek@redhat.com>

	PR c++/104477
	* call.cc (ref_conv_binds_directly_p): Rename to ...
	(ref_conv_binds_directly): ... this.  Add a new bool parameter.  Change
	the return type to tristate.
	* constraint.cc (diagnose_trait_expr): Handle
	CPTK_REF_CONSTRUCTS_FROM_TEMPORARY and CPTK_REF_CONVERTS_FROM_TEMPORARY.
	* cp-tree.h: Include "tristate.h".
	(enum cp_trait_kind): Add CPTK_REF_CONSTRUCTS_FROM_TEMPORARY
	and CPTK_REF_CONVERTS_FROM_TEMPORARY.
	(ref_conv_binds_directly_p): Rename to ...
	(ref_conv_binds_directly): ... this.
	(ref_xes_from_temporary): Declare.
	* cxx-pretty-print.cc (pp_cxx_trait_expression): Handle
	CPTK_REF_CONSTRUCTS_FROM_TEMPORARY and CPTK_REF_CONVERTS_FROM_TEMPORARY.
	* method.cc (ref_xes_from_temporary): New.
	* parser.cc (cp_parser_primary_expression): Handle
	RID_REF_CONSTRUCTS_FROM_TEMPORARY and RID_REF_CONVERTS_FROM_TEMPORARY.
	(cp_parser_trait_expr): Likewise.
	(warn_for_range_copy): Adjust to call ref_conv_binds_directly.
	* semantics.cc (trait_expr_value): Handle
	CPTK_REF_CONSTRUCTS_FROM_TEMPORARY and CPTK_REF_CONVERTS_FROM_TEMPORARY.
	(finish_trait_expr): Likewise.

2022-07-13  Patrick Palka  <ppalka@redhat.com>

	PR c++/105912
	* pt.cc (tsubst_copy_and_build) <case CALL_EXPR>: Guard against
	NULL_TREE extract_call_expr result.

2022-07-13  Patrick Palka  <ppalka@redhat.com>

	PR c++/105842
	* constraint.cc (satisfy_declaration_constraints): Refine early
	exit test for argument dependence.
	* cp-tree.h (uses_outer_template_parms_in_constraints): Declare.
	* pt.cc (template_class_depth): Handle TI_TEMPLATE being a
	FIELD_DECL.
	(usse_outer_template_parms): Factor out constraint dependence
	test into ...
	(uses_outer_template_parms_in_constraints): ... here.
	(type_dependent_expression_p): Use it for FUNCTION_DECL.

2022-07-07  Patrick Palka  <ppalka@redhat.com>

	PR c++/105956
	* pt.cc (template_arg_to_parm): Define.
	(tsubst_argument_pack): Try to reuse the corresponding
	ARGUMENT_PACK from 'args' when substituting into a generic
	ARGUMENT_PACK for a variadic template parameter.
	(tsubst_template_args): Move variable declarations closer to
	their first use.  Replace 'orig_t' with 'r'.  Rename 'need_new'
	to 'const_subst_p'.  Heuristically detect if the substituted
	elements are identical to that of a level from 'args' and avoid
	allocating a new TREE_VEC if so.  Add sanity check for the
	length of the new TREE_VEC, and remove dead ARGUMENT_PACK_P test.
	(tsubst_decl) <case TYPE_DECL, case VAR_DECL>: Revert
	r13-1045-gcb7fd1ea85feea change for avoiding substitution into
	DECL_TI_ARGS, but still avoid coercion in this case.

2022-07-07  Jason Merrill  <jason@redhat.com>

	PR c++/87729
	* class.cc (warn_hidden): Ignore [cd]tors.

2022-07-06  Lewis Hyatt  <lhyatt@gmail.com>

	PR c++/53431
	* parser.cc (cp_parser_pragma_kind): Move earlier in the file.
	(cp_lexer_handle_early_pragma): New function.
	(cp_lexer_new_main): Support parsing and handling early pragmas.
	(c_parse_file): Adapt to changes in cp_lexer_new_main.

2022-07-06  Jason Merrill  <jason@redhat.com>

	PR c++/106179
	PR c++/106024
	* parser.cc (cp_parser_lookup_name): Remove :: requirement
	for using unqualified lookup result.

2022-07-05  Nathan Sidwell  <nathan@acm.org>

	* module.cc
	(struct ord_loc_info, ord_loc_traits): New.
	(ord_loc_tabke, ord_loc_remap): New globals.
	(struct location_map_info): Delete.
	(struct module_state_config): Rename ordinary_loc_align to
	loc_range_bits.
	(module_for_ordinary_loc): Adjust.
	(module_state::note_location): Note ordinary locations,
	return bool.
	(module_state::write_location): Adjust ordinary location
	streaming.
	(module_state::read_location): Likewise.
	(module_state::write_init_maps): Allocate ord_loc_table.
	(module_state::write_prepare_maps): Reimplement ordinary
	map preparation.
	(module_state::read_prepare_maps): Adjust.
	(module_state::write_ordinary_maps): Reimplement.
	(module_state::write_macro_maps): Adjust.
	(module_state::read_ordinary_maps): Reimplement.
	(module_state::write_macros): Adjust.
	(module_state::write_config): Adjust.
	(module_state::read_config): Adjust.
	(module_state::write_begin): Adjust.
	(module_state::read_initial): Adjust.

2022-07-04  Tobias Burnus  <tobias@codesourcery.com>
	    Chung-Lin Tang  <cltang@codesourcery.com>
	    Thomas Schwinge  <thomas@codesourcery.com>

	* parser.cc (cp_parser_omp_target_data,
	cp_parser_omp_target_enter_data, cp_parser_omp_target_exit_data,
	cp_parser_omp_target_update): Set OMP_REQUIRES_TARGET_USED.
	(cp_parser_omp_requires): Remove sorry.

2022-07-01  Lewis Hyatt  <lhyatt@gmail.com>

	* parser.cc (cp_token_is_module_directive): New function
	refactoring common code.
	(cp_parser_skip_to_closing_parenthesis_1): Use the new function.
	(cp_parser_skip_to_end_of_statement): Likewise.
	(cp_parser_skip_to_end_of_block_or_statement): Likewise.
	(cp_parser_declaration): Likewise.

2022-07-01  Marek Polacek  <polacek@redhat.com>

	PR c++/105550
	* constexpr.cc (cxx_eval_conditional_expression): Strip TARGET_EXPRs.

2022-07-01  Tobias Burnus  <tobias@codesourcery.com>

	* parser.cc (cp_parser_omp_target_enter_data,
	cp_parser_omp_target_exit_data): Accept tofrom
	map-type modifier but use 'to' / 'from' internally.

2022-07-01  Marek Polacek  <polacek@redhat.com>

	PR c++/106111
	* parser.cc (cp_lexer_get_preprocessor_token): Also warn about
	RID_ALIGNOF, RID_ALIGNAS, RID_THREAD.

2022-07-01  Jason Merrill  <jason@redhat.com>

	PR c++/105779
	* call.cc (resolve_args): Use complain.

2022-07-01  Jason Merrill  <jason@redhat.com>

	* parser.cc (missing_template_diag): Split out...
	(cp_parser_id_expression): ...from here.

2022-07-01  Jason Merrill  <jason@redhat.com>

	PR c++/106024
	* parser.cc (missing_template_diag): Factor out...
	(cp_parser_id_expression): ...from here.
	(cp_parser_lookup_name): Don't look in dependent object_type.

2022-06-30  Nathan Sidwell  <nathan@acm.org>

	* module.cc (module_state::write_define): Drop located param.
	(module_state::read_define): Likewise.
	(module_state::prepare_macros): New, broken out of ...
	(module_state::write_macros): ... here.  Adjust.
	(module_state::write_begin): Adjust.

2022-06-29  Nathan Sidwell  <nathan@acm.org>

	* module.cc (macro_info, macro_traits, macro_table,
	macro_remap): Rename to ...
	(macro_loc_info, macro_loc_traits, macro_loc_table,
	macro_loc_remap): ... these.  Update all uses.
	(module_state::write_prepare_maps): Remove unneeded macro checking.
	(module_state::write_begin): Free macro_loc_remap.

2022-06-27  Sergei Trofimovich  <siarheit@google.com>

	PR c++/106102
	* mapper-client.cc: Include <memory> via "system.h".
	* mapper-resolver.cc: Ditto.
	* module.cc: Ditto.

2022-06-27  David Malcolm  <dmalcolm@redhat.com>

	* cxx-pretty-print.h: Add "final" and "override" to various vfunc
	implementations, removing redundant "virtual" as appropriate.
	* module.cc: Likewise.

2022-06-24  Jason Merrill  <jason@redhat.com>

	PR c++/87729
	PR c++/20423
	* class.cc (warn_hidden): Handle -Woverloaded-virtual=1.

2022-06-24  Alexandre Oliva  <oliva@adacore.com>

	* g++spec.cc (lang_specific_driver): Implement -nostdlib++.

2022-06-23  Jason Merrill  <jason@redhat.com>

	PR c++/105925
	* call.cc (build_aggr_conv): Don't depend on
	CONSTRUCTOR_IS_DESIGNATED_INIT.

2022-06-23  Jason Merrill  <jason@redhat.com>

	PR c++/105925
	* decl.cc (reshape_init_array_1): Set
	CONSTRUCTOR_IS_DESIGNATED_INIT here.
	(reshape_init_class): And here.
	(reshape_init): Not here.

2022-06-23  Patrick Palka  <ppalka@redhat.com>

	PR c++/105931
	* expr.cc (fold_for_warn): Don't fold when in an unevaluated
	context.

2022-06-23  Patrick Palka  <ppalka@redhat.com>

	PR c++/105982
	* pt.cc (lookup_template_class): After calling complete_type for
	the substituted context, check the table again iff the type was
	previously incomplete and complete_type made it complete.

2022-06-23  Jason Merrill  <jason@redhat.com>

	PR c++/94554
	* pt.cc (dependent_operand_p): Split out from...
	(tsubst_copy_and_build): ...here.
	(tsubst_expr) [IF_STMT]: Use it.
	* semantics.cc (finish_if_stmt_cond): Keep the pre-conversion
	condition in the template tree.

2022-06-23  Jason Merrill  <jason@redhat.com>

	PR c++/105885
	* pt.cc (tsubst_copy_and_build): Also suppress -Waddress for
	comparison of dependent operands.

2022-06-23  Nathan Sidwell  <nathan@acm.org>

	* module.cc (struct macro_info): New.
	(struct macro_traits): New.
	(macro_remap, macro_table): New globals.
	(depset::hash::find_dependencies): Note namespace location.
	(module_for_macro_loc): Adjust.
	(module_state::note_location): New.
	(module_state::Write_location): Note location when not
	streaming. Adjust macro location streaming.
	(module_state::read_location): Adjust macro location
	streaming.
	(module_state::write_init_maps): New.
	(module_state::write_prepare_maps): Reimplement macro map
	preparation.
	(module_state::write_macro_maps): Reimplement.
	(module_state::read_macro_maps): Likewise.
	(module_state::write_begin): Adjust.

2022-06-23  Jason Merrill  <jason@redhat.com>

	* pt.cc (type_unification_real): An auto tparm can't
	be affected by other deductions.

2022-06-23  Jason Merrill  <jason@redhat.com>

	PR c++/105964
	* pt.cc (type_dependent_expression_p): Look through BASELINK.

2022-06-22  Jason Merrill  <jason@redhat.com>

	PR c++/105908
	* name-lookup.cc (outer_binding): Strip BASELINK.

2022-06-22  Nathan Sidwell  <nathan@acm.org>

	* module.cc (struct duplicate_hash): Remove.
	(duplicate_hash_map): Adjust.

2022-06-22  Jason Merrill  <jason@redhat.com>

	PR c++/104642
	* constexpr.cc (cxx_eval_builtin_function_call): Handle
	unreachable/trap earlier.
	* cp-gimplify.cc (cp_maybe_instrument_return): Use
	build_builtin_unreachable.

2022-06-18  Jakub Jelinek  <jakub@redhat.com>

	* cp-ubsan.cc (cp_ubsan_instrument_vptr_p): Use
	flag_sanitize_trap & SANITIZE_VPTR instead of
	flag_sanitize_undefined_trap_on_error.

2022-06-17  Jakub Jelinek  <jakub@redhat.com>

	PR c++/106001
	* typeck.cc (build_x_shufflevector): Use fold_non_dependent_expr
	instead of maybe_constant_value.

2022-06-16  Nathan Sidwell  <nathan@acm.org>

	* decl2.cc (finish_objects): Add startp parameter, adjust.
	(generate_ctor_or_dtor_function): Detect empty fn, and don't
	generate unnecessary code.  Remove objc startup here ...
	(c_parse_final_cleanyps): ... do it here.

2022-06-16  Martin Liska  <mliska@suse.cz>

	* decl2.cc (struct priority_map_traits): Remove unused param.

2022-06-15  Nathan Sidwell  <nathan@acm.org>

	* module.cc (module_state::write_readme): Use less confusing
	importable unit names.

2022-06-14  Nathan Sidwell  <nathan@acm.org>

	* cp-tree.h (fini_modules): Add has_inits parm.
	* decl2.cc (c_parse_final_cleanups): Check for
	inits, adjust fini_modules flags.
	* module.cc (module_state): Rename call_init_p to
	active_init_p.
	(module_state::write_config): Write active_init.
	(module_state::read_config): Read it.
	(module_determine_import_inits): Clear active_init_p
	of covered inits.
	(late_finish_module): Add has_init parm.  Record it.
	(fini_modules): Adjust.

2022-06-13  Nathan Sidwell  <nathan@acm.org>

	* module.cc (module_state::write): Separate to ...
	(module_state::write_begin, module_state::write_end): ...
	these.
	(module_state::write_readme): Drop extensions parameter.
	(struct module_processing_cookie): Add more fields.
	(finish_module_processing): Adjust state writing call.
	(late_finish_module): Call write_end.

2022-06-10  Patrick Palka  <ppalka@redhat.com>

	PR c++/65328
	* decl.cc (typename_hasher::hash): Add extra overloads.
	Use iterative_hash_object instead of htab_hash_pointer.
	Hash TYPENAME_TYPE_FULLNAME instead of TYPE_IDENTIFIER.
	(build_typename_type): Use typename_hasher::hash.
	* pt.cc (spec_hasher::hash): Add two-parameter overload.
	Set comparing_specializations around the call to
	hash_tmpl_and_args.
	(iterative_hash_template_arg) <case TYPENAME_TYPE>:
	When comparing_specializations, hash the TYPE_CONTEXT
	and TYPENAME_TYPE_FULLNAME.
	(tsubst_function_decl): Use spec_hasher::hash instead of
	hash_tmpl_and_args.
	(tsubst_template_decl): Likewise.
	(tsubst_decl): Likewise.

2022-06-10  Patrick Palka  <ppalka@redhat.com>

	* pt.cc (instantiate_template): Don't substitute the context
	of the most general template if that of the partially
	instantiated template is already non-dependent.

2022-06-10  Patrick Palka  <ppalka@redhat.com>

	* pt.cc (lookup_template_class): Remove dead stores to
	context parameter.  Don't substitute the context of the
	most general template if that of the partially instantiated
	template is already non-dependent.  Check the specializations
	table again after completing the context of a nested dependent
	specialization.
	(tsubst_aggr_type) <case RECORD_TYPE>: Don't substitute
	TYPE_CONTEXT or pass it to lookup_template_class.
	(tsubst_decl) <case TYPE_DECL, case TYPE_DECL>: Avoid substituting
	the TREE_TYPE for DECL_SELF_REFERENCE_P.  Avoid template argument
	substitution or coercion in some cases.

2022-06-10  Nathan Sidwell  <nathan@acm.org>

	* cp-tree.h (fini_modules): Add some parameters.
	(finish_module_processing): Return an opaque pointer.
	* decl2.cc (c_parse_final_cleanups): Propagate a cookie from
	finish_module_processing to fini_modules.
	* module.cc (struct module_processing_cookie): New.
	(finish_module_processing): Return a heap-allocated cookie.
	(late_finish_module): New.  Finish out the module writing.
	(fini_modules): Adjust.

2022-06-10  Nathan Sidwell  <nathan@acm.org>

	* cp-tree.h (module_has_import_init): Rename to ...
	(module_determined_import_inits): ... here.
	* decl2.cc (start_objects): Do not handle module initializers
	here.
	(c_parse_final_cleanups): Generate a separate module
	initializer calling function and add it to the list.  Shrink
	the c-lang region.
	* module.cc (num_init_calls_needed): Delete.
	 (module_has_import_init): Rename to ...
	(module_determined_import_inits): ... here. Do the
	calculation here ...
	(finish_module_processing): ... rather than here.
	(module_add_import_initializers): Reformat.

2022-06-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/105871
	* constexpr.cc (cxx_eval_bit_field_ref): For BIT_FIELD_REF with
	non-integral result type use fold_ternary too like for BIT_FIELD_REFs
	from VECTOR_CST.  If fold_ternary returns NULL, diagnose non-constant
	expression, set *non_constant_p and return t, instead of returning
	NULL.

2022-06-09  Nathan Sidwell  <nathan@acm.org>

	* cp-tree.h (module_initializer_kind): Replace with ...
	(module_global_init_needed, module_has_import_inits): ...
	these.
	* decl2.cc (start_objects): Add has_body parm.  Reorganize
	module initializer creation.
	(generate_ctor_or_dtor_function): Adjust.
	(c_parse_final_cleanups): Adjust.
	(vtv_start_verification_constructor_init_function): Adjust.
	* module.cc (module_initializer_kind): Replace with ...
	(module_global_init_needed, module_has_import_inits): ...
	these.

2022-06-08  Jason Merrill  <jason@redhat.com>

	PR c++/105852
	* decl.cc (duplicate_decls): Change non-templated friend
	check to an assert.
	* pt.cc	(tsubst_function_decl): Don't set DECL_TEMPLATE_INFO
	on non-templated friends.
	(tsubst_friend_function): Adjust.

2022-06-08  Jason Merrill  <jason@redhat.com>

	PR c++/105852
	PR c++/105761
	* decl.cc (duplicate_decls): Avoid copying template info
	from non-templated friend even if newdecl isn't a definition.
	Correct handling of DECL_UNIQUE_FRIEND_P on templates.
	* pt.cc (non_templated_friend_p): New.
	* cp-tree.h (non_templated_friend_p): Declare it.

2022-06-08  Nathan Sidwell  <nathan@acm.org>

	* decl2.cc (struct priority_info_s, priority_info): Delete.
	(priority_map_traits, priority_map_t): New.
	(static_init_fini_fns): New.
	(INITIALIZE_P_IDENTIFIER, PRIORITY_IDENTIFIER): Delete.
	(initialize_p_decl, priority_decl): Delete.
	(ssdf_decls, priority_info_map): Delete.
	(start_static_storage_duration_function): Rename to ...
	(start_partial_init_fini_fn): ... here. Create a void arg fn.
	Add it to the slot in the appropriate static_init_fini_fns
	hash table.
	(finish_static_storage_duration_function): Rename to ...
	(finish_partial_init_fini_fn): ... here.
	(get_priority_info): Delete.
	(one_static_initialization_or_destruction): Assert not
	trivial dtor.
	(do_static_initialization_or_destruction): Rename to ...
	(emit_partial_init_fini_fn) ... here.  Start & finish the fn.
	Simply init/fini each var.
	(partition_vars_for_init_fini): Partition vars according to
	priority and add to init and/or fini list.
	(generate_ctor_or_dtor_function): Start and finish the function.
	Do santitizer calls here.
	(generate_ctor_and_dtor_functions_for_priority): Delete.
	(c_parse_final_cleanups): Reimplement global init/fini
	processing.

2022-06-07  Jakub Jelinek  <jakub@redhat.com>

	* parser.cc (cp_parser_omp_clause_linear): Parse OpenMP 5.2
	style linear clause modifiers.  Set
	OMP_CLAUSE_LINEAR_OLD_LINEAR_MODIFIER flag on the clauses when
	old style modifiers are used.
	* semantics.cc (finish_omp_clauses): Only reject linear clause
	with val modifier on simd or for if the old style modifiers are
	used.

2022-06-07  Roger Sayle  <roger@nextmovesoftware.com>

	PR c++/96442
	* decl.cc (start_enum): When emitting a "must be integral" error,
	set ENUM_UNDERLYING_TYPE to integer_type_node, to avoid an ICE
	downstream in build_enumeration.

2022-06-06  Patrick Palka  <ppalka@redhat.com>

	PR c++/53164
	PR c++/105848
	* pt.cc (tsubst_copy_and_build) <case CALL_EXPR>: Look through an
	ADDR_EXPR callee when calling mark_used.

2022-06-04  Marek Polacek  <polacek@redhat.com>

	PR c++/102399
	PR c++/69585
	* parser.cc (cp_parser_attributes_opt): Accept GNU attributes
	followed by [[]] attributes and vice versa.

2022-06-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/105756
	* typeck.cc (cp_build_binary_op): Don't fold operands
	when c_inhibit_evaluation_warnings.

2022-06-03  Jason Merrill  <jason@redhat.com>

	PR c++/105761
	* decl.cc (duplicate_decls): Don't copy DECL_TEMPLATE_INFO
	from a hidden friend.

2022-06-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/105637
	* tree.cc (maybe_dummy_object): When returning a dummy
	object, respect the cv-quals of 'this' if available.

2022-06-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/100374
	* pt.cc (determine_specialization): Compare overall constraints
	not just the trailing constraints.
	(tsubst_each_template_parm_constraints): Define.
	(tsubst_friend_function): Use it.
	(tsubst_friend_class): Use it.
	(tsubst_template_parm): Don't substitute TEMPLATE_PARM_CONSTRAINTS.

2022-06-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/105797
	* pt.cc (for_each_template_parm_r) <case FUNCTION_DECL, VAR_DECL>:
	Don't walk DECL_CONTEXT.
	<case PARM_DECL>: Likewise.  Walk TREE_TYPE.
	<case CONST_DECL>: Simplify.
	(any_template_parm_r) <case PARM_DECL>: Don't walk TREE_TYPE.

2022-06-02  Marek Polacek  <polacek@redhat.com>

	* constexpr.cc (potential_constant_expression_1): Treat
	{,VEC_}NEW_EXPR and {,VEC_}DELETE_EXPRas potentially constant in C++20.

2022-06-02  Marek Polacek  <polacek@redhat.com>

	PR c++/105803
	* pt.cc (value_dependent_expression_p): Handle {,VEC_}NEW_EXPR
	in the switch.

2022-06-02  David Malcolm  <dmalcolm@redhat.com>

	* cp-lang.cc (LANG_HOOKS_GET_SARIF_SOURCE_LANGUAGE): Redefine.
	(cp_get_sarif_source_language): New.

2022-06-02  Jason Merrill  <jason@redhat.com>

	PR c++/105795
	* constexpr.cc (init_subob_ctx): Clear ctx->ctor for empty subob.
	(cxx_eval_store_expression): Likewise.
	(cxx_eval_bare_aggregate): Handle null ctx->ctor.

2022-06-02  Jason Merrill  <jason@redhat.com>

	PR c++/105795
	* constexpr.cc (cxx_eval_bare_aggregate): Always call
	init_subob_ctx.

2022-06-01  Jason Merrill  <jason@redhat.com>

	PR c++/105734
	* parser.cc (cp_parser_postfix_dot_deref_expression): Use typeof
	if the expression has auto type.

2022-06-01  Jason Merrill  <jason@redhat.com>

	PR c++/105779
	* call.cc (resolve_args): Call mark_single_function here.
	* pt.cc (unify_one_argument): Not here.

2022-06-01  Nathan Sidwell  <nathan@acm.org>

	* decl2.cc (fix_temporary_vars_context_r): Use data argument
	for new context.
	(one_static_initialization_or_destruction): Adjust tree walk
	call.  Refactor guard generation.

2022-06-01  Nathan Sidwell  <nathan@acm.org>

	* decl2.cc (ssdf_decl): Delete global.
	(start_static_storage_duration_function): Use some RAII.
	(do_static_initialization_or_destruction): Likewise.
	(c_parse_final_cleanups): Likewise.  Avoid rechecking 'vars'.

2022-06-01  Nathan Sidwell  <nathan@acm.org>

	* decl2.cc (start_objects): Replace 'method_type' parameter
	with 'initp' boolean, rename and retype 'priority' parameter.
	(finish_objects): Likewise.  Do not expand here.
	(one_static_initialization_or_destruction): Move 'initp'
	parameter first.
	(do_static_initialization_or_destruction): Likewise.
	(generate_ctor_or_dtor_function): Rename 'initp' parameter.
	Adjust start_objects/finish_obects calls and expand here.
	(generate_ctor_and_dtor_functions_for_priority): Adjust calls.
	(c_parse_final_cleanups): Likewise.
	(vtv_start_verification_constructor_init): Adjust.
	(vtv_finish_verification_constructor_init): Use finish_objects.

2022-05-31  Patrick Palka  <ppalka@redhat.com>

	PR c++/105758
	* call.cc (build_over_call): Use z_candidate::conversion_path
	and ::access_path instead of TYPE_BINFO when building the
	BASELINK for the templated form.

2022-05-31  Patrick Palka  <ppalka@redhat.com>

	* parser.cc: Use auto_timevar instead of timevar_push/pop.
	Remove wrapper functions.
	* pt.cc: Likewise.

2022-05-31  Patrick Palka  <ppalka@redhat.com>

	* cp-tree.h (cp_build_qualified_type_real): Rename to ...
	(cp_build_qualified_type): ... this.  Give its last parameter
	a default argument.  Remove macro of the same name.
	* decl.cc (grokdeclarator): Adjust accordingly.
	* pt.cc (tsubst_aggr_type): Likewise.
	(rebuild_function_or_method_type): Likewise.
	(tsubst): Likewise.
	(maybe_dependent_member_ref): Likewise.
	(unify): Likewise.
	* tree.cc (cp_build_qualified_type_real): Rename to ...
	(cp_build_qualified_type): ... this.  Adjust accordingly.

2022-05-31  Jason Merrill  <jason@redhat.com>

	* Make-lang.in (c++.tags): Just look at *.cc.

2022-05-31  Patrick Palka  <ppalka@redhat.com>

	* cp-tree.h (comp_template_args): Change return type to bool.
	* pt.cc (comp_template_args): Document default arguments.
	Change return type to bool and adjust returns accordingly.

2022-05-31  Patrick Palka  <ppalka@redhat.com>

	* decl.cc (grokvardecl): Use current_template_constraints.
	(grokdeclarator): Likewise.
	(xref_tag): Likewise.
	* semantics.cc (finish_template_template_parm): Likewise.

2022-05-31  Jakub Jelinek  <jakub@redhat.com>

	* parser.cc (OMP_SCOPE_CLAUSE_MASK): Add firstprivate and allocate
	clauses.

2022-05-30  Marek Polacek  <polacek@redhat.com>

	PR c++/99080
	* pt.cc (type_dependent_expression_p): Assert !TYPE_P.
	* semantics.cc (finish_id_expression_1): Handle UNBOUND_CLASS_TEMPLATE
	specifically.

2022-05-28  Jakub Jelinek  <jakub@redhat.com>

	* parser.cc (handle_omp_declare_target_clause): If OMP_CLAUSE_LINK was
	seen first, use "%<to%>" or "%<enter%>" depending on
	OMP_CLAUSE_ENTER_TO of the current clause, otherwise use
	"%<to%> or %<enter%>" wording.

2022-05-28  Jason Merrill  <jason@redhat.com>

	PR c++/105652
	* pt.cc (tsubst_lambda_expr): Don't let a namespace-scope lambda
	instantiate into a class-scope lambda.

2022-05-27  Marek Polacek  <polacek@redhat.com>

	PR c++/105725
	* parser.cc (class_decl_loc_t::add): Check CLASS_TYPE_P.

2022-05-27  Jakub Jelinek  <jakub@redhat.com>

	* parser.cc (cp_parser_omp_clause_name): Parse enter clause.
	(cp_parser_omp_all_clauses): For to clause on declare target, use
	OMP_CLAUSE_ENTER clause with OMP_CLAUSE_ENTER_TO instead of
	OMP_CLAUSE_TO_DECLARE clause.  Handle PRAGMA_OMP_CLAUSE_ENTER.
	(OMP_DECLARE_TARGET_CLAUSE_MASK): Add enter clause.
	(cp_parser_omp_declare_target): Use OMP_CLAUSE_ENTER instead of
	OMP_CLAUSE_TO_DECLARE.
	* semantics.cc (finish_omp_clauses): Handle OMP_CLAUSE_ENTER instead
	of OMP_CLAUSE_TO_DECLARE, to OMP_CLAUSE_ENTER_TO use "to" as clause
	name in diagnostics instead of
	omp_clause_code_name[OMP_CLAUSE_CODE (c)].

2022-05-26  Marek Polacek  <polacek@redhat.com>

	PR c++/105569
	* typeck.cc (warn_for_null_address): Improve the warning when
	the POINTER_PLUS_EXPR's base is of reference type.

2022-05-26  Patrick Palka  <ppalka@redhat.com>

	PR c++/96363
	* decl.cc (shadow_tag): Use the return value of
	maybe_process_partial_specialization.
	* parser.cc (cp_parser_single_declaration): Call shadow_tag
	before associate_classtype_constraints.
	* pt.cc (maybe_new_partial_specialization): Change return type
	to bool.  Take 'type' argument by mutable reference.  Set 'type'
	to point to the correct constrained specialization when
	appropriate.
	(maybe_process_partial_specialization): Adjust accordingly.

2022-05-25  Marek Polacek  <polacek@redhat.com>

	PR c++/96637
	* cp-tree.h (attr_chainon): Declare.
	* decl.cc (start_decl): Use attr_chainon.
	(grokdeclarator): Likewise.
	* parser.cc (cp_parser_statement): No longer static.

2022-05-25  Jason Merrill  <jason@redhat.com>

	PR c++/105655
	* pt.cc (build_template_decl): Add assert.
	(tsubst_function_decl): Don't return a template.

2022-05-25  Jason Merrill  <jason@redhat.com>

	PR c++/105623
	* decl2.cc (mark_used): Copy type from fn to BASELINK.
	* pt.cc (unify_one_argument): Call mark_single_function.

2022-05-25  Jason Merrill  <jason@redhat.com>

	* constexpr.cc (cxx_eval_call_expression): Check for
	heap vars in the result.

2022-05-25  Jason Merrill  <jason@redhat.com>

	* constexpr.cc (maybe_constant_init_1): Only pass false for
	strict when initializing a variable of static duration.

2022-05-25  Marek Polacek  <polacek@redhat.com>

	PR c++/100252
	* typeck2.cc (potential_prvalue_result_of): New.
	(replace_placeholders_for_class_temp_r): New.
	(digest_nsdmi_init): Call it.

2022-05-24  Jason Merrill  <jason@redhat.com>

	* constexpr.cc (cxx_fold_indirect_ref): Add default arg.
	(cxx_eval_call_expression): Call it.
	(cxx_fold_indirect_ref_1): Handle null empty_base.

2022-05-24  Jason Merrill  <jason@redhat.com>

	* constexpr.cc (enum value_cat): New. Change all 'lval' parameters
	from int to value_cat.  Change most false to vc_prvalue, most true
	to vc_glvalue, cases where the return value is ignored to
	vc_discard.
	(cxx_eval_statement_list): Only vc_prvalue for stmt-expr result.
	(cxx_eval_store_expression): Only build _REF for vc_glvalue.
	(cxx_eval_array_reference, cxx_eval_component_reference)
	(cxx_eval_indirect_ref, cxx_eval_constant_expression): Likewise.

2022-05-24  Jason Merrill  <jason@redhat.com>

	PR c++/105622
	* constexpr.cc (cxx_eval_store_expression): Adjust assert.
	Use initialized_type.

2022-05-24  Patrick Palka  <ppalka@redhat.com>

	* cp-tree.h (any_template_arguments_need_structural_equality_p):
	Declare.
	* pt.cc (struct ctp_hasher): Define.
	(ctp_table): Define.
	(canonical_type_parameter): Use it.
	(process_template_parm): Set TYPE_CANONICAL for
	TEMPLATE_TEMPLATE_PARM too.
	(lookup_template_class_1): Remove now outdated comment for the
	any_template_arguments_need_structural_equality_p test.
	(tsubst) <case TEMPLATE_TEMPLATE_PARM, etc>: Don't specifically
	clear TYPE_CANONICAL for ttps.  Set TYPE_CANONICAL on the
	substituted type later.
	(any_template_arguments_need_structural_equality_p): Return
	true for any_targ_node.  Don't return true just because a
	template argument uses structural equality.  Add comment for
	the PARM_DECL special case.
	(rewrite_template_parm): Set TYPE_CANONICAL on the rewritten
	parm's type later.
	* tree.cc (bind_template_template_parm): Set TYPE_CANONICAL
	when safe to do so.
	* typeck.cc (structural_comptypes) [check_alias]: Increment
	processing_template_decl before checking
	dependent_alias_template_spec_p.

2022-05-24  Jakub Jelinek  <jakub@redhat.com>

	PR c/105378
	* parser.cc (OMP_TASKWAIT_CLAUSE_MASK): Add nowait clause.

2022-05-20  David Malcolm  <dmalcolm@redhat.com>

	* cxx-pretty-print.h: Replace uses of "FINAL" and "OVERRIDE" with
	"final" and "override".
	* error.cc: Likewise.

2022-05-18  Marek Polacek  <polacek@redhat.com>

	PR c++/105634
	* call.cc (maybe_warn_class_memaccess): Avoid % by zero.

2022-05-17  Jason Merrill  <jason@redhat.com>

	PR c++/102307
	* decl.cc (check_initializer): Use build_cplus_new in case of
	constexpr failure.

2022-05-17  Jakub Jelinek  <jakub@redhat.com>

	* parser.cc (cp_parser_omp_clause_depend): Parse
	inoutset depend-kind.
	(cp_parser_omp_depobj): Likewise.
	* cxx-pretty-print.cc (cxx_pretty_printer::statement): Handle
	OMP_CLAUSE_DEPEND_INOUTSET.

2022-05-16  Martin Liska  <mliska@suse.cz>

	* module.cc (depset::entity_kind_name): Use ARRAY_SIZE.
	* name-lookup.cc (get_std_name_hint): Likewise.
	* parser.cc (cp_parser_new): Likewise.

2022-05-16  Marcel Vollweiler  <marcel@codesourcery.com>

	* pt.cc (tsubst_omp_clauses): Added OMP_CLAUSE_HAS_DEVICE_ADDR.
	* semantics.cc (finish_omp_clauses): Added template decl processing.

2022-05-15  Jason Merrill  <jason@redhat.com>

	PR c++/100502
	PR c++/58993
	* friend.cc (is_friend): Hidden friends count as members.
	* search.cc (friend_accessible_p): Likewise.

2022-05-15  Jason Merrill  <jason@redhat.com>

	* parser.cc (cp_parser_template_name): Look through
	injected-class-name.

2022-05-15  Jason Merrill  <jason@redhat.com>

	PR c++/105589
	PR c++/105191
	PR c++/92385
	* init.cc (build_value_init): Handle class in template.

2022-05-13  Nathan Sidwell  <nathan@acm.org>

	* mangle.cc (maybe_write_module): Check external linkage.

2022-05-13  Richard Biener  <rguenther@suse.de>

	* constexpr.cc: Remove gimple-fold.h include.

2022-05-12  Patrick Palka  <ppalka@redhat.com>

	* cp-tree.h (TMPL_ARGS_LEVEL): Assert LEVEL is 1 when
	TMPL_ARGS_HAVE_MULTIPLE_LEVELS is false.
	* pt.cc (try_class_unification): Correctly copy multidimensional
	targs.  Free the copy of targs.
	(unify_pack_expansion): Fix level comparison.

2022-05-12  Nathan Sidwell  <nathan@acm.org>

	* parser.cc (cp_parser_linkage_specification): Implement
	global module attachment semantics.

2022-05-12  Jakub Jelinek  <jakub@redhat.com>

	* lex.cc (init_reswords): Register omp_all_memory as keyword
	if flag_openmp.
	* parser.cc (cp_parser_primary_expression): Diagnose uses of
	omp_all_memory in postfix expressions.
	(cp_parser_omp_var_list_no_open): Handle omp_all_memory in depend
	clause.
	* semantics.cc (finish_omp_clauses): Handle omp_all_memory
	keyword in depend clause as null_pointer_node, diagnose invalid
	uses.
	* pt.cc (tsubst_omp_clause_decl): Pass through omp_all_memory.

2022-05-11  Patrick Palka  <ppalka@redhat.com>

	* constraint.cc (tsubst_parameter_mapping): Convert loop over
	TREE_VEC into a range-based for loop using tree_vec_range.
	* pt.cc (iterative_hash_template_arg): Likewise.
	(template_parms_level_to_args): Likewise.
	(deducible_template_args): Likewise.
	(check_undeduced_parms): Likewise.
	(dependent_type_p_r): Likewise.
	(value_dependent_expression_p) <case NONTYPE_ARGUMENT_PACK>:
	Likewise.
	(dependent_template_arg_p): Likewise.
	* tree.cc (cp_walk_subtrees) <case NONTYPE_ARGUMENT_PACK>:
	Likewise.

2022-05-11  Jason Merrill  <jason@redhat.com>

	PR c++/105541
	* cp-tree.h (TMPL_ARGS_DEPTH): 0 for null args.
	* parser.cc (cp_parser_enclosed_template_argument_list):
	Use 0-length TREE_VEC for <>.

2022-05-11  Jason Merrill  <jason@redhat.com>

	PR bootstrap/105567
	* typeck.cc (check_return_expr): Don't mess with ctor return value
	while parsing a template.

2022-05-11  Nathan Sidwell  <nathan@acm.org>

	* cp-tree.h (DECL_MODULE_ATTACH_P): New.
	(struct lang_decl_base): Add module_attach_p flag.
	* decl.cc (duplicate_decls): Rework module redeclaration
	checking.
	* module.cc (trees_out::lang_decl_bools): Write attach flag.
	(trees_in::lang_decl_bools): ... and read it back.
	(trees_out::decl_value): Rework module attachment handling.
	(trees_in::decl_value): Rename local var to reflect meaning.
	(trees_in::key_mergeable): Likewise.
	(get_originating_module): Use DECL_MODULE_ATTACH_P.  No need
	to special-case mangling.
	(module_may_redeclare): Reimplement.
	(set_originating_module): Deal with attachment.
	* name-lookup.cc (maybe_record_mergeable_decl): Deal with
	attachment.
	(mergeable_namespace_slots): Likewise.
	(do_nonmember_using_decl): Likewise.
	* name-lookup.h (mergeable_namespace_slots): Adjust parm
	meaning.
	* ptree.cc (cxx_print_decl): Adjust purview & attach printing.

2022-05-11  Martin Liska  <mliska@suse.cz>

	PR target/105355
	* lang-specs.h: Use Separate syntax.

2022-05-10  Patrick Palka  <ppalka@redhat.com>

	* coroutines.cc (instantiate_coro_traits): Adjust accordingly.
	* cp-tree.def: Remove mention of SET_PACK_EXPANSION_PATTERN.
	* cp-tree.h (SET_PACK_EXPANSION_PATTERN): Remove.
	(SET_ARGUMENT_PACK_ARGS): Remove.
	* module.cc (trees_in::tree_node): Adjust accordingly.
	* parser.cc (make_char_string_pack): Likewise.
	(make_string_pack): Likewise.
	* pt.cc (make_pack_expansion): Likewise.
	(template_parm_to_arg): Likewise.
	(coerce_template_parameter_pack): Likewise.
	(extract_fnparm_pack): Likewise.
	(extract_locals_r): Likewise.
	(make_argument_pack): Likewise.
	(tsubst_argument_pack): Likewise.
	(lookup_init_capture_pack): Likewise.
	(type_unification_real): Likewise.
	(unify_pack_expansion): Likewise.
	(tsubst_initializer_list): Likewise.

2022-05-10  Patrick Palka  <ppalka@redhat.com>

	* cp-tree.h (PACK_EXPANSION_CHECK): Define.
	(PACK_EXPANSION_PATTERN): Use PACK_EXPANSION_CHECK.
	(SET_PACK_EXPANSION_PATTERN): Likewise.
	(PACK_EXPANSION_PARAMETER_PACKS): Likewise.
	(PACK_EXPANSION_EXTRA_ARGS): Likewise.
	(PACK_EXPANSION_LOCAL_P): Likewise.
	(PACK_EXPANSION_SIZEOF_P): Likewise.
	(PACK_EXPANSION_AUTO_P): Likewise.
	(PACK_EXPANSION_FORCE_EXTRA_ARGS_P): Likewise.
	(ARGUMENT_PACK_CHECK): Define.
	(ARGUMENT_PACK_ARGS): Use ARGUMENT_PACK_CHECK.
	(SET_ARGUMENT_PACK_ARGS): Likewise.
	* parser.cc (cp_parser_sizeof_pack): Check for error_mark_node
	before setting PACK_EXPANSION_SIZEOF_P.

2022-05-10  Nathan Sidwell  <nathan@acm.org>

	* cp-tree.h (enum module_kind_bits): Disambiguate purview,
	attach, named module vs header-unit.
	(global_purview_p, not_module_p): Delete.
	(named_module_p): New.
	(header_module_p, module_purview_p): Adjust.
	(module_attach_p, named_module_purview_p): New.
	* decl.cc (duplicate_decls): Adjust.
	* module.cc (declare_module, preprocessed_module): Adjust.
	* name-lookup.cc (init_global_partition): Adjust.
	(get_fixed_binding_slot, pushdecl): Adjust.
	* parser.cc (cp_parser_module_declaration): Adjust.
	(cp_parser_import_declaration, cp_parser_declaration): Adjust.

2022-05-10  Jason Merrill  <jason@redhat.com>

	PR c++/105529
	* decl.cc (maybe_return_this): Replace...
	(finish_constructor_body, finish_destructor_body): ...these.
	(finish_function_body): Call it.
	* optimize.cc (build_delete_destructor_body): Call it.
	* cp-tree.h (maybe_return_this): Declare.

2022-05-09  Marek Polacek  <polacek@redhat.com>

	PR c++/103539
	* parser.cc (cp_parser_statement): Constify the in_compound parameter.
	Create a modifiable copy.  Allow labels at the end of compound
	statements.

2022-05-09  Patrick Palka  <ppalka@redhat.com>

	PR c++/105491
	* call.cc (field_in_pset): Adjust after next_initializable_field
	renaming.
	(build_aggr_conv): Likewise.
	(convert_like_internal): Likewise.
	(type_has_extended_temps): Likewise.
	* class.cc (default_init_uninitialized_part): Likewise.
	(finish_struct): Likewise.
	* constexpr.cc (cx_check_missing_mem_inits): Likewise.
	(reduced_constant_expression_p): Use next_subobject_field
	instead.
	* cp-gimplify.cc (get_source_location_impl_type): Adjust after
	next_initializable_field renaming.
	(fold_builtin_source_location): Likewise.
	* cp-tree.h (next_initializable_field): Rename to ...
	(next_aggregate_field): ... this.
	(next_subobject_field): Declare.
	* decl.cc (next_aggregate_field): Renamed from ...
	(next_initializable_field): ... this.  Skip over vptr fields
	again.
	(next_subobject_field): Define.
	(reshape_init_class): Adjust after next_initializable_field
	renaming.
	* init.cc (build_value_init_noctor): Likewise.
	(emit_mem_initializers): Likewise.
	* lambda.cc (build_capture_proxy): Likewise.
	* method.cc (build_comparison_op): Likewise.
	* pt.cc (maybe_aggr_guide): Likewise.
	* tree.cc (structural_type_p): Likewise.
	* typeck2.cc (split_nonconstant_init_1): Likewise.
	(digest_init_r): Likewise.

2022-05-09  Nathan Sidwell  <nathan@acm.org>

	* cp-tree.h (DECL_MODULE_KEYED_DECLS_P): Renamed from
	DECL_MODULE_ATTACHMENTS_P.
	(struct lane_decl_base): Rename module_attached_p to
	module_keyed_decls_p.
	(maybe_key_decl): Renamed from maybe_attach_decl.
	* lambda.cc (record_lambda_scope): Adjust.
	* lex.cc (cxx_dup_lang_specific_decl): Adjust.
	* module.cc (keyed_map_t, keyed_table): Renamed from attached_map_t,
	attached_table.
	(enum merge_kind): Rename MK_attached to MK_keyed.
	(trees_out::lang_decl_bools): Adjust.
	(trees_in::lang_decl_bools): Adjust.
	(trees_in::decl_value): Adjust.
	(trees_out::get_merge_kind): Adjust.
	(trees_out::key_mergeable): Adjust.
	(trees_in::key_mergeable): Adjust.
	(maybe_key_decl): Rename from maybe_attach_decl.
	(direct_import): Adjust.
	(fini_modules): Adjust.

2022-05-09  Martin Liska  <mliska@suse.cz>

	* cp-gimplify.cc (cp_genericize_r): Use {,UN}LIKELY
	macros.
	* parser.cc (cp_finalize_omp_declare_simd): Likewise.
	(cp_finalize_oacc_routine): Likewise.

2022-05-07  Marek Polacek  <polacek@redhat.com>

	PR c++/101833
	PR c++/47634
	* tree.cc (maybe_adjust_arg_pos_for_attribute): New.

2022-05-06  Jason Merrill  <jason@redhat.com>

	* error.cc (decl_to_string): Add show_color parameter.
	(subst_to_string): Likewise.
	(cp_printer): Pass it.
	(type_to_string): Set pp_show_color.
	(dump_function_name): Use "fnname" color.
	(dump_template_bindings): Use "targs" color.
	(struct colorize_guard): New.
	(reinit_cxx_pp): Clear pp_show_color.

2022-05-06  Jason Merrill  <jason@redhat.com>

	PR c++/105245
	PR c++/100111
	* constexpr.cc (cxx_eval_store_expression): Reorganize empty base
	handling.

2022-05-05  Marek Polacek  <polacek@redhat.com>

	PR c++/64679
	* parser.cc (cp_parser_parameter_declaration_clause): Maintain
	a vector of parameters that haven't been pushed yet.  Push them at the
	end of a valid parameter-declaration-clause.
	(cp_parser_parameter_declaration_list): Take a new auto_vec parameter.
	Do not pushdecl while parsing tentatively when pushdecl-ing a parameter
	would result in a hard error.
	(cp_parser_cache_defarg): Adjust the call to
	cp_parser_parameter_declaration_list.

2022-05-05  Richard Biener  <rguenther@suse.de>

	* module.cc (trees_in::core_vals): Remove separate allocation
	for REAL_CST.

2022-05-04  Jason Merrill  <jason@redhat.com>

	PR c++/104470
	* pt.cc (maybe_dependent_member_ref): Handle types.
	(tsubst, tsubst_copy): Use it.
	(tsubst_aggr_type, instantiate_alias_template): Don't handle
	tf_dguide here.

2022-05-04  Patrick Palka  <ppalka@redhat.com>

	PR c++/105476
	* pt.cc (maybe_aggr_guide): Set processing_template_decl when
	partially instantiating the guide's parameter list.

2022-05-04  Marek Polacek  <polacek@redhat.com>

	PR c++/64679
	* parser.cc (cp_parser_init_declarator): Properly handle a series of
	operator() calls, they are not part of an init-declarator.

2022-05-04  Jason Merrill  <jason@redhat.com>

	* decl.cc (reshape_init): Shortcut already-reshaped init.
	 (reshape_init_class): Assert not getting one here.

2022-05-04  Jason Merrill  <jason@redhat.com>

	* error.cc (cp_print_error_function): Use %qD.
	(function_category): Use %qD.

2022-05-04  Marek Polacek  <polacek@redhat.com>

	PR c++/105436
	* parser.cc (cp_parser_next_token_ends_template_argument_p): Don't
	return true for CPP_GREATER_EQ.

2022-05-04  Jason Merrill  <jason@redhat.com>

	* cp-tree.h (struct language_function): Remove x_cdtor_label.
	(cdtor_label, LABEL_DECL_CDTOR): Remove.
	* constexpr.cc (returns): Don't check LABEL_DECL_CDTOR.
	(cxx_eval_constant_expression): Don't call returns.
	* decl.cc (check_goto): Don't check cdtor_label.
	(start_preparsed_function): And don't set it.
	(finish_constructor_body, finish_destructor_body): Remove.
	(finish_function_body): Don't call them.
	* typeck.cc (check_return_expr): Handle cdtor_returns_this here.
	* semantics.cc (finish_return_stmt): Not here.

2022-05-04  Jakub Jelinek  <jakub@redhat.com>

	* lambda.cc: Include decl.h.
	(maybe_add_lambda_conv_op): Temporarily override deprecated_state to
	UNAVAILABLE_DEPRECATED_SUPPRESS.

2022-05-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/105351
	* cp-tree.h (finish_non_static_data_member): Add defaulted
	complain parameter.
	* pt.cc (tsubst_copy_and_build): Pass complain to
	finish_non_static_data_member.
	* semantics.cc (finish_non_static_data_member): Respect complain
	parameter.
	(finish_qualified_id_expr): Pass complain to
	finish_non_static_data_member.

2022-05-02  Jason Merrill  <jason@redhat.com>

	* pt.cc (tsubst_copy_and_build) [TEMPLATE_ID_EXPR]: Copy location.
	(do_auto_deduction): Use expr location.

2022-05-02  Jason Merrill  <jason@redhat.com>

	* class.cc (maybe_note_name_used_in_class): Note in all enclosing
	classes.  Remember location of use.
	(note_name_declared_in_class): Adjust.

2022-05-02  Marek Polacek  <polacek@redhat.com>

	* cp-tree.h (uses_template_parms): Adjust declaration.
	* pt.cc (uses_template_parms): Return bool.  Use a RAII sentinel.

2022-05-02  Richard Biener  <rguenther@suse.de>

	* constexpr.cc (fold_simple_1): Use CASE_CONVERT.
	* cp-gimplify.cc (cp_fold): Likewise.
	* pt.cc (tsubst_copy): Likewise.

2022-04-29  Jason Merrill  <jason@redhat.com>

	PR c++/91618
	PR c++/96604
	* friend.cc (do_friend): Call check_explicit_specialization here.
	* decl.cc (grokdeclarator): Not here.
	* decl2.cc (check_classfn): Or here.

2022-04-29  Jason Merrill  <jason@redhat.com>

	PR c++/104470
	* cp-tree.h (enum tsubst_flags): Add tf_dguide.
	* pt.cc (tsubst_aggr_type): Check it.
	(tsubst_baselink, tsubst_copy): Check it.
	(maybe_dependent_member_ref): Check it.
	(instantiate_alias_template): Handle it.
	(build_deduction_guide): Set it.

2022-04-29  Jason Merrill  <jason@redhat.com>

	PR c++/82980
	* lambda.cc (type_deducible_expression_p): Allow more types.

2022-04-29  Jason Merrill  <jason@redhat.com>

	* decl.cc (cp_finish_decl): Only consider auto for vars.

2022-04-29  Marek Polacek  <polacek@redhat.com>

	PR c++/67048
	* parser.cc (cp_parser_enum_specifier): Warn about empty unnamed enum
	only when it's followed by a semicolon.

2022-04-29  Jason Merrill  <jason@redhat.com>

	PR c++/80351
	* decl.cc (cp_finish_decl): Check completeness of deduced type.

2022-04-29  Jason Merrill  <jason@redhat.com>

	PR c++/102987
	* error.cc (dump_decl) [USING_DECL]: Respect flags.

2022-04-29  Jason Merrill  <jason@redhat.com>

	* error.cc (dump_decl): Check TFF_UNQUALIFIED_NAME.

2022-04-29  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104319
	* parser.cc (cp_parser_template_argument): Treat >= like C++98 >>
	after a type id by setting maybe_type_id and aborting tentative
	parse.
	(cp_parser_enclosed_template_argument_list): Handle
	CPP_GREATER_EQ like misspelled CPP_GREATER CPP_RQ and
	CPP_RSHIFT_EQ like misspelled CPP_GREATER CPP_GREATER_EQ
	or CPP_RSHIFT CPP_EQ or CPP_GREATER CPP_GREATER CPP_EQ.
	(cp_parser_next_token_ends_template_argument_p): Return true
	also for CPP_GREATER_EQ and CPP_RSHIFT_EQ.

2022-04-29  Iain Sandoe  <iain@sandoe.co.uk>

	PR c++/105426
	* coroutines.cc (register_local_var_uses): Allow promotion of unnamed
	temporaries to coroutine frame copies.

2022-04-29  Jason Merrill  <jason@redhat.com>

	* semantics.cc (check_trait_type): Don't check completeness
	of element type of array of unknown bound.

2022-04-29  Jason Merrill  <jason@redhat.com>

	PR c++/102651
	PR c++/49387
	* rtti.cc (get_tinfo_decl_direct): Don't complete_type.
	(emit_tinfo_decl): Update tdesc type if needed.

2022-04-29  Zhao Wei Liew  <zhaoweiliew@gmail.com>

	PR c++/25689
	* call.cc (extract_call_expr): Return a NULL_TREE on failure
	instead of asserting.
	(build_new_method_call): Suppress -Wparentheses diagnostic for
	MODIFY_EXPR.
	* semantics.cc (is_assignment_op_expr_p): Add function to check
	if an expression is a call to an op= operator expression.
	(maybe_convert_cond): Handle the case of a op= operator expression
	for the -Wparentheses diagnostic.

2022-04-28  Patrick Palka  <ppalka@redhat.com>

	PR c++/105425
	* pt.cc (unify) <case TEMPLATE_PARM_INDEX>: Treat
	DEPENDENT_OPERATOR_TYPE like an empty type.

2022-04-28  Iain Sandoe  <iain@sandoe.co.uk>

	PR c++/104051
	* coroutines.cc (coro_diagnose_throwing_final_aw_expr): Handle
	non-target expression inputs.

2022-04-28  Iain Sandoe  <iain@sandoe.co.uk>

	PR c++/105301
	* coroutines.cc (coro_promise_type_found_p): Account for possible
	mutliple overloads of the promise return_value() method.

2022-04-28  Iain Sandoe  <iain@sandoe.co.uk>

	PR c++/105287
	* coroutines.cc (maybe_promote_temps): Ensure generated temporaries
	are added to the bind expr.
	(add_var_to_bind): Fix local var naming to use portable punctuation.
	(register_local_var_uses): Do not add synthetic names to unnamed
	temporaries.

2022-04-28  Nathan Sidwell  <nathan@acm.org>
	    Iain Sandoe  <iain@sandoe.co.uk>

	PR c++/103868
	* coroutines.cc (finish_co_await_expr): Do not process non-dependent
	coroutine expressions at template definition time.
	(finish_co_yield_expr): Likewise.
	(finish_co_return_stmt): Likewise.

2022-04-28  Marek Polacek  <polacek@redhat.com>

	PR c++/90107
	* parser.cc (cp_parser_class_specifier_1): Accept :: after a class
	definition.

2022-04-27  Jason Merrill  <jason@redhat.com>

	* tree.cc (strip_typedefs): Add default argument comments.

2022-04-27  Marek Polacek  <polacek@redhat.com>

	PR c++/105398
	* pt.cc (uses_template_parms): Return false for any NAMESPACE_DECL.

2022-04-26  Jason Merrill  <jason@redhat.com>

	PR c++/102629
	* pt.cc (gen_elem_of_pack_expansion_instantiation): Clear
	TEMPLATE_TYPE_PARAMETER_PACK on auto.

2022-04-26  Patrick Palka  <ppalka@redhat.com>

	PR c++/105386
	* semantics.cc (finish_decltype_type): Pass tf_decltype to
	instantiate_non_dependent_expr_sfinae.

2022-04-26  Jason Merrill  <jason@redhat.com>

	PR c++/104624
	* pt.cc (check_for_bare_parameter_packs): Check for lambda
	function parameter pack.

2022-04-26  Patrick Palka  <ppalka@redhat.com>

	PR c++/105289
	PR c++/86193
	* pt.cc (process_partial_specialization): Downgrade "partial
	specialization isn't more specialized" diagnostic from permerror
	to an on-by-default pedwarn.
	(unify) <case TEMPLATE_PARM_INDEX>: When substituting into the
	NTTP type a second time, use the original type not the
	substituted type.

2022-04-25  Marek Polacek  <polacek@redhat.com>

	PR c++/105353
	* typeck.cc (build_x_shufflevector): Use
	instantiation_dependent_expression_p except for the first two
	arguments.

2022-04-21  Marek Polacek  <polacek@redhat.com>

	* constexpr.cc (cxx_eval_logical_expression): Remove unused
	parameter.
	(cxx_eval_constant_expression) <case TRUTH_ANDIF_EXPR>,
	<case TRUTH_OR_EXPR>: Adjust calls to cxx_eval_logical_expression.

2022-04-21  Marek Polacek  <polacek@redhat.com>

	PR c++/105321
	* constexpr.cc (cxx_eval_logical_expression): Always pass false for lval
	to cxx_eval_constant_expression.

2022-04-20  Ed Catmur  <ed@catmur.uk>

	PR c++/104996
	* call.cc (compare_ics): When comparing list-initialization
	sequences, do not return early.

2022-04-19  Jakub Jelinek  <jakub@redhat.com>

	PR c++/105256
	* typeck2.cc (process_init_constructor_array,
	process_init_constructor_record, process_init_constructor_union): Move
	CONSTRUCTOR_PLACEHOLDER_BOUNDARY flag from CONSTRUCTOR elements to the
	containing CONSTRUCTOR.

2022-04-15  Marek Polacek  <polacek@redhat.com>

	PR c++/105268
	* parser.cc (cp_parser_placeholder_type_specifier): Return
	error_mark_node when trying to build up a constrained parameter in
	a default argument.

2022-04-15  Jason Merrill  <jason@redhat.com>

	PR c++/102804
	* decl.cc (grokdeclarator): Drop typedef used with 'unsigned'.

2022-04-15  Jason Merrill  <jason@redhat.com>

	PR c++/102987
	* error.cc (dump_expr): Handle USING_DECL.
	[VIEW_CONVERT_EXPR]: Just look through location wrapper.

2022-04-14  Jason Merrill  <jason@redhat.com>

	PR c++/104646
	* constexpr.cc (maybe_save_constexpr_fundef): Don't do extra
	checks for defaulted ctors.

2022-04-14  Jason Merrill  <jason@redhat.com>

	PR c++/82980
	* lambda.cc (type_deducible_expression_p): New.
	(lambda_capture_field_type): Check it.

2022-04-14  Jason Merrill  <jason@redhat.com>

	PR c++/65211
	* pt.cc (tsubst_decl) [TYPE_DECL]: Copy TYPE_ALIGN.

2022-04-14  Jason Merrill  <jason@redhat.com>

	PR c++/97219
	* name-lookup.cc (dependent_local_decl_p): New.
	* cp-tree.h (dependent_local_decl_p): Declare.
	* semantics.cc (finish_call_expr): Use it.
	* pt.cc (tsubst_arg_types): Also substitute default args
	for local externs.

2022-04-14  Jason Merrill  <jason@redhat.com>

	PR c++/101698
	* pt.cc (tsubst_baselink): Also check dependent optype.

2022-04-14  Jason Merrill  <jason@redhat.com>

	PR c++/101442
	* decl.cc (cp_finish_decl): Don't pass decl to push_cleanup.
	* init.cc (perform_member_init): Likewise.
	* semantics.cc (push_cleanup): Adjust comment.

2022-04-13  Jason Merrill  <jason@redhat.com>

	PR c++/105245
	PR c++/100111
	* constexpr.cc (cxx_eval_store_expression): Build a CONSTRUCTOR
	as needed in empty base handling.

2022-04-13  Jakub Jelinek  <jakub@redhat.com>

	PR c++/105233
	* decl2.cc (cp_check_const_attributes): For aligned attribute
	pass manifestly_const_eval=true to fold_non_dependent_expr.

2022-04-13  Marek Polacek  <polacek@redhat.com>

	PR c++/97296
	* call.cc (direct_reference_binding): strip_top_quals when creating
	a ck_qual.

2022-04-12  Jason Merrill  <jason@redhat.com>

	PR c++/104669
	* decl.cc (decls_match): Compare versions even if not recording.
	(duplicate_decls): Propagate attributes to alias.
	* decl2.cc (find_last_decl): Give up if versioned.

2022-04-12  Jason Merrill  <jason@redhat.com>

	PR c++/102071
	* init.cc (build_new_1): Check array_p for alignment.

2022-04-12  Patrick Palka  <ppalka@redhat.com>

	PR c++/103105
	* pt.cc (build_extra_args): Call preserve_args.

2022-04-12  Jason Merrill  <jason@redhat.com>

	PR c++/104142
	* decl.cc (check_initializer): Check TREE_SIDE_EFFECTS.

2022-04-12  Jason Merrill  <jason@redhat.com>

	PR c++/105223
	PR c++/92918
	* class.cc (finish_struct): Always using op=.

2022-04-11  Jason Merrill  <jason@redhat.com>

	PR c++/98249
	* call.cc (build_operator_new_call): Just look in ::.

2022-04-11  Alexandre Oliva  <oliva@adacore.com>

	* constexpr.cc (cxx_eval_call_expression): Disregard dtor
	result.

2022-04-11  Alexandre Oliva  <oliva@adacore.com>

	* semantics.cc (set_cleanup_locs): Propagate locus to call
	wrapped in cast-to-void.

2022-04-11  Jason Merrill  <jason@redhat.com>

	PR c++/100370
	* init.cc (warn_placement_new_too_small): Check deref.

2022-04-09  Jason Merrill  <jason@redhat.com>

	PR c++/105191
	PR c++/92385
	* tree.cc (build_vec_init_elt): Do {}-init for aggregates.
	* constexpr.cc (cxx_eval_vec_init): Only treat {} as value-init
	for non-aggregate types.
	(build_vec_init_expr): Also check constancy of explicit
	initializer elements.

2022-04-09  Jason Merrill  <jason@redhat.com>

	PR c++/91618
	PR c++/96604
	* name-lookup.cc (set_decl_namespace): Set
	DECL_IMPLICIT_INSTANTIATION if no non-template match.
	* pt.cc (check_explicit_specialization): Check it.
	* decl2.cc (check_classfn): Call it.

2022-04-07  Patrick Palka  <ppalka@redhat.com>

	PR c++/99479
	* name-lookup.cc (name_lookup::using_queue): Change to an
	auto_vec (with 16 elements of internal storage).
	(name_lookup::queue_namespace): Change return type to void,
	take queue parameter by reference and adjust function body
	accordingly.
	(name_lookup::do_queue_usings): Inline into ...
	(name_lookup::queue_usings): ... here.  As in queue_namespace.
	(name_lookup::search_unqualified): Don't make queue static,
	remove length variable, and adjust function body accordingly.

2022-04-07  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/102586
	* cp-objcp-common.h (cp_classtype_as_base): Declare.
	(LANG_HOOKS_CLASSTYPE_AS_BASE): Redefine.
	* cp-objcp-common.cc (cp_classtype_as_base): New function.

2022-04-07  Jason Merrill  <jason@redhat.com>

	PR c++/101051
	* decl.cc (grokdeclarator): Reject conversion with trailing return
	sooner.

2022-04-07  Jason Merrill  <jason@redhat.com>

	PR c++/101717
	* lambda.cc (lambda_expr_this_capture): Check all enclosing
	lambdas for completeness.

2022-04-07  Jason Merrill  <jason@redhat.com>

	PR c++/105187
	* typeck2.cc (store_init_value): Allow TREE_HAS_CONSTRUCTOR for
	vectors.

2022-04-06  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104668
	* decl2.cc (splice_template_attributes): Return NULL if *p is
	error_mark_node.
	(cplus_decl_attributes): Return early if attributes is
	error_mark_node.  Don't check that later.

2022-04-06  Patrick Palka  <ppalka@redhat.com>

	PR c++/105143
	* pt.cc (do_class_deduction): Check complain before attempting
	to issue a -Wctad-maybe-unsupported warning.

2022-04-06  Jason Merrill  <jason@redhat.com>

	PR c++/104702
	* init.cc (build_vec_init): Use a reference for the result.

2022-04-06  Jason Merrill  <jason@redhat.com>

	PR c++/100608
	* name-lookup.cc (check_local_shadow): Use -Wshadow=local
	if exactly one of 'old' and 'decl' is a type.

2022-04-05  Jason Merrill  <jason@redhat.com>

	PR c++/103852
	DR 1286
	* pt.cc (do_class_deduction): Pedwarn for renaming alias in C++17.

2022-04-05  Jason Merrill  <jason@redhat.com>

	PR c++/101677
	* name-lookup.h (struct cp_binding_level): Add requires_expression
	bit-field.
	* parser.cc (cp_parser_requires_expression): Set it.
	(synthesize_implicit_template_parm): Check it.

2022-04-04  Jason Merrill  <jason@redhat.com>

	PR c++/101894
	* decl.cc (duplicate_decls): Copy DECL_FRIEND_CONTEXT.

2022-04-04  Jason Merrill  <jason@redhat.com>

	PR c++/103852
	DR 1286
	* pt.cc (get_underlying_template): Compare default template args.

2022-04-03  Benno Evers  <benno.evers@tenzir.com>
	    Iain Sandoe  <iain@sandoe.co.uk>

	PR c++/103328
	* coroutines.cc (morph_fn_to_coro): Reset
	current_binding_level->blocks.

2022-04-01  Jason Merrill  <jason@redhat.com>

	Revert:
	2022-03-31  Jason Merrill  <jason@redhat.com>

	PR c++/96645
	* parser.cc (cp_parser_early_parsing_nsdmi): New.
	(cp_parser_member_declaration): Call it.

2022-04-01  Jason Merrill  <jason@redhat.com>

	Revert:
	2022-03-24  Jason Merrill  <jason@redhat.com>

	PR c++/96645
	* cp-tree.h (type_has_default_ctor_to_be_synthesized): Declare.
	* class.cc (type_has_default_ctor_to_be_synthesized): New.
	(type_has_non_user_provided_default_constructor_1): Support it.
	(type_has_non_user_provided_default_constructor): Now a wrapper.
	* method.cc (complain_about_unparsed_dmi): New.
	(constructible_expr): Call it.

2022-04-01  Patrick Palka  <ppalka@redhat.com>

	PR c++/105110
	* pt.cc (unify) <case TEMPLATE_PARM_INDEX>: Drop cv-quals from
	the argument type of an NTTP before deducing from it.

2022-03-31  Jason Merrill  <jason@redhat.com>

	PR c++/96645
	* parser.cc (cp_parser_early_parsing_nsdmi): New.
	(cp_parser_member_declaration): Call it.

2022-03-30  Patrick Palka  <ppalka@redhat.com>

	PR c++/100474
	* constraint.cc (diagnose_trait_expr): Handle all remaining
	traits appropriately.  Remove default case.

2022-03-30  Marek Polacek  <polacek@redhat.com>

	PR c++/93280
	PR c++/104583
	* init.cc (get_nsdmi): Set TARGET_EXPR_DIRECT_INIT_P to in_ctor.

2022-03-30  Jakub Jelinek  <jakub@redhat.com>

	PR c++/105092
	* pt.cc (tsubst_omp_clause_decl): When handling iterators, set
	DECL_CONTEXT of the iterator var to current_function_decl and
	call pushdecl.

2022-03-30  Jakub Jelinek  <jakub@redhat.com>

	PR c++/105061
	* parser.cc (cp_parser_template_introduction): If member_p, temporarily
	clear parser->colon_corrects_to_scope_p around tentative parsing of
	nested name specifier.

2022-03-28  Jason Merrill  <jason@redhat.com>

	* pt.cc (determine_specialization): Add comment.

2022-03-28  Patrick Palka  <ppalka@redhat.com>

	PR c++/105067
	* pt.cc (finish_concept_definition): Check that a concept is
	declared with exactly one template parameter list.

2022-03-28  Patrick Palka  <ppalka@redhat.com>

	PR c++/105064
	* constraint.cc (maybe_substitute_reqs_for): Don't assume
	DECL_TEMPLATE_INFO is available.

2022-03-28  Jason Merrill  <jason@redhat.com>

	PR c++/105003
	PR c++/104008
	PR c++/102869
	* pt.cc (complex_alias_template_r): walk_tree callback,	replacing
	uses_all_template_parms_r, complex_pack_expansion_r.
	(complex_alias_template_p): Adjust.
	* tree.cc (strip_typedefs): Revert r12-7710 change.

2022-03-28  Jason Merrill  <jason@redhat.com>

	PR c++/102071
	* init.cc (build_new_1): Include cookie in alignment.  Omit
	constexpr wrapper from alloc_call.

2022-03-28  Jason Merrill  <jason@redhat.com>

	PR c++/103291
	* name-lookup.cc (push_local_extern_decl_alias): Call
	determine_visibility.

2022-03-28  Jason Merrill  <jason@redhat.com>

	PR c++/102123
	* pt.cc (tsubst_copy): Use make_unbound_class_template for rewriting
	a type template reference.

2022-03-28  Jason Merrill  <jason@redhat.com>

	PR c++/103968
	* pt.cc (value_dependent_expression_p): Check
	has_value_dependent_address for conversion to reference.

2022-03-28  Jason Merrill  <jason@redhat.com>

	PR c++/103943
	* pt.cc (tsubst_qualified_id): Handle getting SCOPE_REF from
	tsubst_baselink.
	(instantiation_dependent_scope_ref_p): Check dependent_scope_p.

2022-03-28  Jason Merrill  <jason@redhat.com>

	PR c++/102045
	* call.cc (make_base_init_ok): Call make_used.

2022-03-28  Jason Merrill  <jason@redhat.com>

	PR c++/104847
	* mangle.cc (write_expression): Don't write a union designator when
	undigested.

2022-03-28  Jason Merrill  <jason@redhat.com>

	PR c++/99445
	PR c++/103769
	* tree.cc (strip_typedefs): Use build_distinct_type_copy.

2022-03-26  Patrick Palka  <ppalka@redhat.com>

	PR c++/105050
	* constexpr.cc (potential_constant_expression_1) <case IF_STMT>:
	Clarify error message when a if-stmt is non-constant because its
	branches are non-constant.

2022-03-26  Patrick Palka  <ppalka@redhat.com>

	PR c++/103455
	* call.cc (add_builtin_candidate) <case MEMBER_REF>: Test
	CLASS_TYPE_P instead of MAYBE_CLASS_TYPE_P.

2022-03-26  Jakub Jelinek  <jakub@redhat.com>

	* parser.cc (cp_parser_postfix_expression)
	<case RID_BILTIN_CONVERTVECTOR, case RID_BUILTIN_BIT_CAST>: Don't
	return cp_build_{vec,convert,bit_cast} result right away, instead
	set postfix_expression to it and break.

2022-03-25  Marek Polacek  <polacek@redhat.com>

	PR c++/104944
	* typeck.cc (cxx_sizeof_or_alignof_type): Diagnose alignof(void).
	(cxx_alignas_expr): Call cxx_sizeof_or_alignof_type with
	complain == true.

2022-03-24  Marek Polacek  <polacek@redhat.com>

	PR c++/104284
	* decl.cc (check_initializer): Don't call build_aggr_init in
	a template.

2022-03-24  Jason Merrill  <jason@redhat.com>

	PR c++/96645
	* cp-tree.h (type_has_default_ctor_to_be_synthesized): Declare.
	* class.cc (type_has_default_ctor_to_be_synthesized): New.
	(type_has_non_user_provided_default_constructor_1): Support it.
	(type_has_non_user_provided_default_constructor): Now a wrapper.
	* method.cc (complain_about_unparsed_dmi): New.
	(constructible_expr): Call it.

2022-03-24  Marek Polacek  <polacek@redhat.com>

	PR c++/102990
	* typeck2.cc (massage_init_elt): Avoid folding CONSTRUCTORs.

2022-03-24  Patrick Palka  <ppalka@redhat.com>

	PR c++/104620
	* call.cc (build_over_call): Use cxx_constant_value_sfinae
	instead of cxx_constant_value to evaluate a consteval call.
	* constexpr.cc (cxx_constant_value_sfinae): Add decl parameter
	and pass it to cxx_eval_outermost_constant_expr.
	* cp-tree.h (cxx_constant_value_sfinae): Add decl parameter.
	* pt.cc (fold_targs_r): Pass NULL_TREE as decl parameter to
	cxx_constant_value_sfinae.

2022-03-24  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104994
	* constexpr.cc (cxx_eval_constant_expression): Don't diagnose passing
	through extern thread_local declarations.  Change wording from
	declaration to definition.
	(potential_constant_expression_1): Don't diagnose extern thread_local
	declarations.  Change wording from declared to defined.
	* decl.cc (start_decl): Likewise.

2022-03-23  Jason Merrill  <jason@redhat.com>

	PR c++/103337
	* decl.cc (reshape_single_init): New.
	(reshape_init_class): Use it.

2022-03-23  Jason Merrill  <jason@redhat.com>

	PR c++/105006
	* name-lookup.cc (lookup_using_decl): Check that scope is
	a dependent type before looking for dependent using.

2022-03-23  Jason Merrill  <jason@redhat.com>

	PR c++/105006
	* name-lookup.cc (lookup_using_decl): Set DECL_DEPENDENT_P if lookup
	finds a dependent using.

2022-03-21  Jason Merrill  <jason@redhat.com>

	PR c++/58646
	* init.cc (build_vec_init): Check for vla element type.

2022-03-21  Jason Merrill  <jason@redhat.com>

	PR c++/103337
	PR c++/102740
	PR c++/103299
	PR c++/102538
	* decl.cc (reshape_init_class): Avoid looking for designator
	after we found it.
	(reshape_init_r): Keep looking for designator.

2022-03-21  Jason Merrill  <jason@redhat.com>

	PR c++/101767
	* decl.cc (reshape_init_class): Back out of anon struct
	if a designator doesn't match.

2022-03-18  Jason Merrill  <jason@redhat.com>

	PR c++/92918
	PR c++/104476
	* class.cc (add_method): Avoid adding the same used function twice.
	(handle_using_decl): Don't add_method.
	(finish_struct): Don't using op= if we have one already.
	(maybe_push_used_methods): New.
	* semantics.cc (finish_member_declaration): Call it.
	* name-lookup.cc (diagnose_name_conflict): No longer static.
	(push_class_level_binding): Revert 92918 patch, limit
	to dependent using.
	* cp-tree.h: Adjust.

2022-03-18  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104568
	* init.cc (build_new_constexpr_heap_type): Remove FULL_SIZE
	argument and its handling, instead add ITYPE2 argument.  Only
	support COOKIE_SIZE != NULL.
	(build_new_1): If size is 0, change it to 0 * outer_nelts if
	outer_nelts is non-NULL.  Pass type rather than elt_type to
	maybe_wrap_new_for_constexpr.
	* constexpr.cc (build_new_constexpr_heap_type): New function.
	(cxx_eval_constant_expression) <case CONVERT_EXPR>:
	If elt_size is zero sized type, try to recover outer_nelts from
	the size argument to operator new/new[] and pass that as
	arg_size to build_new_constexpr_heap_type.  Pass ctx,
	non_constant_p and overflow_p to that call too.

2022-03-18  Marek Polacek  <polacek@redhat.com>

	PR c++/104008
	* tree.cc (strip_typedefs): Don't strip an alias template when
	doing so would result in losing a parameter pack.

2022-03-16  Patrick Palka  <ppalka@redhat.com>

	* search.cc (lookup_member): Simplify by handling all values
	of protect together in the ambiguous case.  Don't modify protect.

2022-03-16  Patrick Palka  <ppalka@redhat.com>

	PR c++/96780
	* cp-gimplify.cc (cp_fold) <case CALL_EXPR>: Fold calls to
	std::move/forward and other cast-like functions into simple
	casts.

2022-03-15  Patrick Palka  <ppalka@redhat.com>

	PR c++/103177
	* search.cc (lookup_field_info::errstr): Remove this data
	member.
	(lookup_field_r): Don't set errstr.
	(lookup_member): Check ambiguity before checking access.
	Simplify accordingly after errstr removal.  Exit early upon
	error or empty result.

2022-03-15  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104623
	* parser.cc (cp_parser_skip_to_pragma_eol): Don't purge any tokens.

2022-03-14  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/102586
	* call.cc (build_cxx_call): Diagnose __builtin_clear_padding where
	first argument's type is pointer to non-trivially-copyable type unless
	it is address of a variable or parameter.

2022-03-12  Patrick Palka  <ppalka@redhat.com>

	PR c++/104641
	* cp-tree.h (tsubst_flags::tf_tst_ok): New flag.
	* decl.cc (make_typename_type): Allow a typename-specifier to
	resolve to a template when tf_tst_ok, in which case return
	a CTAD placeholder for the template.
	* pt.cc (tsubst_decl) <case VAR_DECL>: Set tf_tst_ok when
	substituting the type.
	(tsubst): Clear tf_tst_ok and remember if it was set.
	<case TYPENAME_TYPE>: Pass tf_tst_ok to make_typename_type
	appropriately.
	(tsubst_copy) <case CAST_EXPR>: Set tf_tst_ok when substituting
	the type.
	(tsubst_copy_and_build) <case CAST_EXPR>: Likewise.
	<case CONSTRUCTOR>: Likewise.

2022-03-12  Patrick Palka  <ppalka@redhat.com>

	PR c++/104622
	* call.cc (missing_conversion_p): Define.
	(add_candidates): Use it.
	* pt.cc (check_non_deducible_conversion): Change type of strict
	parameter to unification_kind_t and directly test for DEDUCE_CALL.

2022-03-12  Patrick Palka  <ppalka@redhat.com>

	PR c++/104527
	* constraint.cc (normalize_atom): Set
	ATOMIC_CONSTR_EXPR_FROM_CONCEPT_P appropriately.
	(get_mapped_args):  Make static, adjust parameters.  Always
	return a vector whose depth corresponds to the template depth of
	the context of the atomic constraint expression.  Micro-optimize
	by passing false as exact to safe_grow_cleared and by collapsing
	a multi-level depth-one argument vector.
	(satisfy_atom): Adjust call to get_mapped_args and
	diagnose_atomic_constraint.
	(diagnose_atomic_constraint): Replace map parameter with an args
	parameter.
	* cp-tree.h (ATOMIC_CONSTR_EXPR_FROM_CONCEPT_P): Define.
	(get_mapped_args): Remove declaration.

2022-03-12  Patrick Palka  <ppalka@redhat.com>
	    Jason Merrill  <jason@redhat.com>

	PR c++/98644
	* constexpr.cc (mark_non_constant): Define, split out from ...
	(cxx_eval_outermost_constant_expr): ... here.
	(maybe_constant_value): Use it.

2022-03-12  Patrick Palka  <ppalka@redhat.com>

	* semantics.cc (finish_unary_fold_expr): Use input_location
	instead of UNKNOWN_LOCATION.
	(finish_binary_fold_expr): Likewise.

2022-03-12  Thomas Schwinge  <thomas@codesourcery.com>

	PR other/65095
	* semantics.cc (handle_omp_array_sections_1)
	(cp_oacc_check_attachments): Call 'user_omp_clause_code_name'
	instead of 'c_omp_map_clause_name'.

2022-03-10  Marek Polacek  <polacek@redhat.com>

	PR c++/104608
	* parser.cc (cp_parser_template_name): Repeat lookup of
	TYPE_DECLs.

2022-03-10  Marek Polacek  <polacek@redhat.com>

	PR c++/104752
	* semantics.cc (finish_compound_literal): Disallow auto{x} for
	is_constrained_auto.
	* typeck2.cc (build_functional_cast_1): Likewise.

2022-03-10  Marek Polacek  <polacek@redhat.com>

	PR c++/104846
	* decl.cc (grokdeclarator): Check FUNC_OR_METHOD_TYPE_P before giving
	data member errors.

2022-03-10  Jakub Jelinek  <jakub@redhat.com>

	PR c++/103460
	* decl.cc (grok_op_properties): Allow variadic operator[] for
	C++23.

2022-03-10  Roger Sayle  <roger@nextmovesoftware.com>

	PR c++/95999
	* decl.cc (finish_enum_value_list): If VALUE isn't an INTEGER_CST
	consider it to be zero (i.e. treat it like error_mark_node).
	(build_enumerator): Likewise, if PREV_VALUE isn't an INTEGER_CST,
	set VALUE to error_mark_node.

2022-03-10  Roger Sayle  <roger@nextmovesoftware.com>

	PR c++/39751
	* parser.cc (cp_parser_late_parsing_for_member): Confirm the token
	stream hasn't been purged before processing DECL_PENDING_INLINE.

2022-03-09  Patrick Palka  <ppalka@redhat.com>

	PR c++/104823
	* except.cc (build_noexcept_spec): Strengthen dependence check
	to instantiation_dependent_expression_p.
	* parser.cc (cp_parser_parenthesized_expression_list_elt):
	Remove fold_expr_p parameter, and don't call
	instantiate_non_dependent_expr.
	(cp_parser_parenthesized_expression_list): Adjust accordingly.
	* pt.cc (expand_integer_pack): Strengthen dependence check
	to instantiation_dependent_expression_p.
	(instantiate_non_dependent_expr_internal): Adjust comment.
	(instantiate_non_dependent_expr_sfinae): Likewise.  Drop
	the potentially-constant check, and relax and turn the
	dependence check into a checking assert.
	(instantiate_non_dependent_or_null): Adjust comment.
	* semantics.cc (finish_decltype_type): Keep
	processing_template_decl cleared after calling
	instantiate_non_dependent_expr_sfinae.

2022-03-09  Patrick Palka  <ppalka@redhat.com>

	PR c++/102137
	PR c++/87820
	* cp-tree.h (is_copy_initialization): Declare.
	* decl.cc (cp_finish_decl): Set LOOKUP_ONLYCONVERTING
	when is_copy_initialization is true.
	* init.cc (build_aggr_init): Split out copy-initialization
	check into ...
	(is_copy_initialization): ... here.
	* pt.cc (instantiate_decl): Pass 0 instead of
	LOOKUP_ONLYCONVERTING as flags to cp_finish_decl.

2022-03-09  Patrick Palka  <ppalka@redhat.com>

	PR c++/65396
	* cp-tree.h (merge_default_template_args): Declare.
	* decl.cc (merge_default_template_args): Define, factored out
	from redeclare_class_template.
	(duplicate_decls): Use it when merging member function template
	and free function declarations.
	* pt.cc (redeclare_class_template): Factor out default argument
	merging logic into merge_default_template_args.  Improve location
	of a note when there's a template parameter kind mismatch.

2022-03-09  Jakub Jelinek  <jakub@redhat.com>

	PR c/104711
	* constexpr.cc (cxx_eval_check_shift_p): Use TYPE_OVERFLOW_WRAPS
	instead of TYPE_UNSIGNED.
	* typeck.cc (cp_build_binary_op): Don't emit
	-Wshift-negative-value warning if TYPE_OVERFLOW_WRAPS.

2022-03-08  Roger Sayle  <roger@nextmovesoftware.com>

	PR c++/96440
	* decl.cc (start_decl): Defend against prefix_attributes being
	error_mark_node.

2022-03-08  Roger Sayle  <roger@nextmovesoftware.com>

	PR c++/96437
	* parser.cc (synthesize_implicit_template_parm): Check that
	TREE_VALUE (new_parm) isn't error_mark_node before setting its
	DECL_VIRTUAL_P.

2022-03-08  Roger Sayle  <roger@nextmovesoftware.com>

	PR c++/96329
	* parser.cc (cp_parser_linkage_specification): Treat the case where
	linkage is error_mark_node as "invalid linkage-specification".

2022-03-08  Marek Polacek  <polacek@redhat.com>

	PR c++/104108
	* pt.cc (convert_nontype_argument): Recompute
	value_dependent_expression_p after build_converted_constant_expr.

2022-03-08  Marek Polacek  <polacek@redhat.com>

	* decl2.cc (is_late_template_attribute): Do not defer attribute
	unavailable.
	* pt.cc (tsubst_enum): Set TREE_UNAVAILABLE.

2022-03-08  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104806
	* search.cc (lookup_field_fuzzy_info::fuzzy_lookup_field): Ignore
	identifiers with space at the end.

2022-03-07  Jason Merrill  <jason@redhat.com>

	PR c++/104618
	* decl2.cc (mark_single_function): Look through parens and location
	wrapper.
	* typeck.cc (cp_build_addr_expr_1): Not here.

2022-03-07  Jakub Jelinek  <jakub@redhat.com>

	* parser.cc (cp_parser_omp_clause_map): Add missing space in string
	literal.

2022-03-07  Jakub Jelinek  <jakub@redhat.com>

	* cvt.cc: Fix up duplicated word issue in a comment.
	* pt.cc: Likewise.
	* module.cc: Likewise.
	* coroutines.cc: Likewise.

2022-03-04  Nathan Sidwell  <nathan@acm.org>

	* mangle.cc (is_std_substitution): Check global module.
	(is_std_substitution_char): Return bool.

2022-03-04  Nathan Sidwell  <nathan@acm.org>

	* cp-tree.h (mangle_identifier): Replace with ...
	(mangle_module_component): ... this.
	* mangle.cc (dump_substitution_candidates): Adjust.
	(add_substitution): Likewise.
	(find_substitution): Likewise.
	(unmangled_name_p): Likewise.
	(mangle_module_substitution): Reimplement.
	(mangle_module_component): New.
	(write_module, maybe_write_module): Adjust.
	(write_name): Drop modules here.
	(write_unqualified): Do them here instead.
	(mangle_global_init): Adjust.
	* module.cc (module_state::mangle): Adjust.
	(mangle_module): Likewise.
	(get_originating_module): Adjust.

2022-02-28  Marek Polacek  <polacek@redhat.com>

	PR c++/104682
	* cp-tree.h (build_enumerator): Adjust.
	* decl.cc (finish_enum): Make it return the new decl.
	* pt.cc (tsubst_enum): Propagate TREE_DEPRECATED and TREE_UNAVAILABLE.

2022-02-28  Marek Polacek  <polacek@redhat.com>

	PR c++/104667
	* decl2.cc (is_late_template_attribute): Cope with a decl without
	a type.

2022-02-27  Jason Merrill  <jason@redhat.com>

	PR c++/104618
	* typeck.cc (cp_build_addr_expr_1): Also
	maybe_undo_parenthesized_ref.

2022-02-24  Martin Liska  <mliska@suse.cz>

	* pt.cc (defarg_insts_for): Use braces for subobject.

2022-02-18  Patrick Palka  <ppalka@redhat.com>

	PR c++/94944
	* pt.cc (maybe_instantiate_noexcept): For non-static member
	functions, set current_class_ptr/ref to the specialized 'this'
	instead.

2022-02-17  Jason Merrill  <jason@redhat.com>

	PR c++/104539
	* pt.cc (mark_decl_instantiated): Don't clear DECL_COMDAT.

2022-02-17  Jason Merrill  <jason@redhat.com>

	PR c++/90451
	* decl2.cc (mark_single_function): New.
	* cp-tree.h: Declare it.
	* typeck.cc (cp_build_addr_expr_1): mark_used when making a PMF.
	* semantics.cc (finish_qualified_id_expr): Not here.
	(finish_id_expression_1): Or here.
	(finish_decltype_type): Call mark_single_function.
	* cvt.cc (convert_to_void): And here.
	* pt.cc (convert_nontype_argument): And here.
	* init.cc (build_offset_ref): Adjust assert.

2022-02-17  Patrick Palka  <ppalka@redhat.com>

	PR c++/104565
	* semantics.cc (finish_compound_literal): Don't perform
	non-dependent expr folding before calling check_narrowing.

2022-02-16  Patrick Palka  <ppalka@redhat.com>

	PR c++/104507
	* constexpr.cc (potential_constant_expression_1)
	<case NON_DEPENDENT_EXPR>: Return false instead of recursing.
	Assert tf_error isn't set.

2022-02-15  Jason Merrill  <jason@redhat.com>

	PR c++/104107
	PR c++/95036
	* pt.cc (coerce_template_template_parms): Take full parms.
	Avoid adding too much of outer_args.
	(coerce_template_template_parm): Adjust.
	(template_template_parm_bindings_ok_p): Adjust.
	(convert_template_argument): Adjust.

2022-02-14  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104513
	* constexpr.cc (potential_constant_expression_1) <case GOTO_EXPR>:
	Don't punt if returns (target).

2022-02-11  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104472
	* constexpr.cc (cxx_eval_internal_function) <case IFN_VEC_CONVERT>:
	Only return fold_const_call result if it is non-NULL.  Otherwise
	fall through into the default: case to return t, set *non_constant_p
	and emit diagnostics if needed.

2022-02-10  Jason Merrill  <jason@redhat.com>

	* module.cc (depset::hash::add_specializations): Use
	STRIP_TEMPLATE.

2022-02-10  Tobias Burnus  <tobias@codesourcery.com>

	PR c++/102204
	* decl2.cc (cp_omp_mappable_type_1): Remove check for virtual
	members as those are permitted since OpenMP 5.0.

2022-02-10  Patrick Palka  <ppalka@redhat.com>

	* pt.cc (filter_memfn_lookup): Handle dependent USING_DECL
	better.

2022-02-10  Marcel Vollweiler  <marcel@codesourcery.com>

	* parser.cc (cp_parser_omp_clause_name): Parse 'has_device_addr' clause.
	(cp_parser_omp_var_list_no_open): Handle array sections.
	(cp_parser_omp_all_clauses): Added PRAGMA_OMP_CLAUSE_HAS_DEVICE_ADDR
	case.
	(cp_parser_omp_target_update): Added HAS_DEVICE_ADDR to OMP_CLAUSE_MASK.
	* semantics.cc (handle_omp_array_sections): Handle clause restrictions.
	(finish_omp_clauses): Handle array sections.

2022-02-09  Patrick Palka  <ppalka@redhat.com>

	PR c++/104432
	* call.cc (build_new_method_call): When a non-dependent call
	resolves to a specialization of a member template, always build
	the pruned overload set using the member template, not the
	specialization.
	* pt.cc (filter_memfn_lookup): New parameter newtype.  Simplify
	and correct how members from the new lookup set are matched to
	those from the old one.
	(tsubst_baselink): Pass binfo_type as newtype to
	filter_memfn_lookup.

2022-02-09  Jason Merrill  <jason@redhat.com>

	PR c++/103752
	* module.cc (trees_out::core_vals): Stream explicit specifier.
	(trees_in::core_vals): Likewise.
	* pt.cc (store_explicit_specifier): No longer static.
	(tsubst_function_decl): Clear DECL_HAS_DEPENDENT_EXPLICIT_SPEC_P.
	* cp-tree.h (lookup_explicit_specifier): Declare.

2022-02-09  Jason Merrill  <jason@redhat.com>

	PR c++/96876
	* typeck2.cc (split_nonconstant_init_1): Push cleanups for
	preceding members with constant initialization.
	(maybe_push_temp_cleanup): Do nothing if -fno-exceptions.

2022-02-08  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104379
	* name-lookup.cc (check_local_shadow): When diagnosing shadowing
	of a member or global declaration, add warning suppression for
	the decl and don't warn again on it.

2022-02-08  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104403
	* constexpr.cc (cxx_eval_constant_expression): Don't assert DECL_EXPRs
	of TREE_STATIC vars may only appear in -std=c++23.

2022-02-08  Patrick Palka  <ppalka@redhat.com>

	PR c++/80951
	* pt.cc (uses_deducible_template_parms): Consider the
	noexcept-spec of a function type.

2022-02-08  Patrick Palka  <ppalka@redhat.com>

	PR c++/104410
	* constraint.cc (satisfaction_value): Relax assert to accept
	cv-qualified bool.

2022-02-08  Patrick Palka  <ppalka@redhat.com>

	PR c++/103706
	* pt.cc (preserve_args): New function.
	(tsubst_lambda_expr): Use it when setting LAMBDA_EXPR_REGEN_INFO.

2022-02-08  Patrick Palka  <ppalka@redhat.com>

	PR c++/103706
	* constraint.cc (satisfy_declaration_constraints): Use
	lambda_regenerating_args instead.
	* cp-tree.h (lambda_regenerating_args): Declare.
	* pt.cc (lambda_regenerating_args): Define, split out from
	satisfy_declaration_constraints.
	(do_auto_deduction): Use lambda_regenerating_args to obtain the
	full set of outer template arguments for satisfaction when
	inside a lambda.

2022-02-06  Patrick Palka  <ppalka@redhat.com>

	PR c++/96242
	* decl2.cc (mark_used): Directly synthesize a DECL_MAYBE_DELETED
	fn by calling maybe_synthesize_method instead of relying on
	maybe_instantiate_noexcept.  Move call to m_i_n after the
	DECL_DELETED_FN handling.
	* pt.cc (maybe_instantiate_noexcept): Restrict DECL_MAYBE_DELETED
	fn synthesis to only those with an implicit noexcept-spec, and
	return !DECL_DELETED_FN instead of !DECL_MAYBE_DELETED afterwards.

2022-02-06  Jakub Jelinek  <jakub@redhat.com>

	PR c++/89074
	PR c++/104033
	* constexpr.cc (cxx_eval_binary_expression): Temporarily set
	folding_cxx_constexpr.

2022-02-05  Jason Merrill  <jason@redhat.com>

	PR c++/104300
	PR c++/92385
	* cp-tree.h (get_vec_init_expr): New.
	(target_expr_needs_replace): New.
	* cp-gimplify.cc (cp_gimplify_init_expr): Use it.
	(struct cp_fold_data): New.
	(cp_fold_r): Only genericize inits at end of fn.
	(cp_fold_function): Here.
	(cp_fully_fold_init): Not here.
	* init.cc (build_vec_init): Use get_vec_init_expr.
	* tree.cc (build_vec_init_expr): Likewise.
	* typeck2.cc (split_nonconstant_init_1): Likewise.
	(process_init_constructor): Wrap VEC_INIT_EXPR in
	TARGET_EXPR.

2022-02-05  Jason Merrill  <jason@redhat.com>

	* pt.cc (iterative_hash_template_arg): Add comment.

2022-02-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/104079
	* pt.cc (value_dependent_noexcept_spec_p): New predicate split
	out from ...
	(dependent_type_p_r): ... here.
	(instantiation_dependent_r): Use value_dependent_noexcept_spec_p
	to consider dependence of a noexcept-spec before C++17.
	* tree.cc (fixup_deferred_exception_variants): Clear
	TYPE_DEPENDENT_P_VALID.

2022-02-03  Jason Merrill  <jason@redhat.com>

	PR c++/104302
	* decl.cc (maybe_deduce_size_from_array_init): Give up
	on type-dependent init.
	(cp_complete_array_type): Only call reshape_init for character
	array.

2022-02-01  Jason Merrill  <jason@redhat.com>

	PR c++/103186
	* pt.cc (defarg_inst): Use tree_vec_map_cache_hasher.
	(defarg_insts_for): New.
	(tsubst_default_argument): Adjust.

2022-01-31  Marek Polacek  <polacek@redhat.com>

	PR c++/102414
	PR c++/101874
	* decl.cc (create_array_type_for_decl): Use template_placeholder_p.
	Sorry on a variable-length array of auto.

2022-01-31  Marek Polacek  <polacek@redhat.com>

	PR c++/102434
	* class.cc (finish_struct): Don't allow union initializer_list.

2022-01-31  Patrick Palka  <ppalka@redhat.com>

	PR c++/104294
	* pt.cc (ctor_deduction_guides_for): Correct computation of
	outer_args.

2022-01-31  Patrick Palka  <ppalka@redhat.com>

	PR c++/104291
	* pt.cc (for_each_template_parm_r) <case CONSTRUCTOR>: Clear
	walk_subtrees if !include_nondeduced_p.  Simplify given that
	cp_walk_subtrees already walks TYPE_PTRMEMFUNC_FN_TYPE_RAW.

2022-01-28  Patrick Palka  <ppalka@redhat.com>
	    Jason Merrill  <jason@redhat.com>

	PR c++/92752
	* typeck.cc (build_ptrmemfunc): Cast a nullptr constant to the
	unqualified pointer type not the qualified one.

2022-01-28  Patrick Palka  <ppalka@redhat.com>

	PR c++/103341
	* decl.cc (cp_finish_decl): Pass the template arguments of a
	variable template specialization or a templated static data
	member to do_auto_deduction when the auto is constrained.

2022-01-28  Jason Merrill  <jason@redhat.com>

	PR c++/100198
	PR c++/100030
	PR c++/100282
	* parser.cc (cp_parser_enumerator_definition): Sorry on parameter
	pack in lambda.
	(cp_parser_class_head): And in class attributes.
	* pt.cc (check_for_bare_parameter_packs): Sorry instead of error
	in lambda.

2022-01-27  Jason Merrill  <jason@redhat.com>

	PR c++/104245
	PR c++/51344
	* decl2.cc (save_template_attributes): Take late attrs as parm.
	(cplus_decl_attributes): Call it after decl_attributes,
	splice_template_attributes before.

2022-01-27  Patrick Palka  <ppalka@redhat.com>

	PR c++/99895
	* call.cc (build_over_call): For a non-dependent member call,
	build up a CALL_EXPR using a COMPONENT_REF callee, as in
	build_new_method_call.
	* pt.cc (build_non_dependent_expr): Don't wrap PARM_DECL either.
	* tree.cc (build_min_non_dep_op_overload): Adjust accordingly
	after the build_over_call change.

2022-01-27  Patrick Palka  <ppalka@redhat.com>

	PR c++/92944
	PR c++/103678
	* parser.cc (cp_parser_class_head): Update 'type' with the result
	of maybe_process_partial_specialization in the
	nested_name_specifier branch.  Refactor nearby code to accomodate
	that maybe_process_partial_specialization returns a _TYPE, not a
	TYPE_DECL, and eliminate local variable 'class_type' in passing.

2022-01-27  Marek Polacek  <polacek@redhat.com>

	PR c++/101988
	* decl.cc (create_array_type_for_decl): Reject forming an array of
	placeholder for a deduced class type.

2022-01-26  Jason Merrill  <jason@redhat.com>

	PR c++/104206
	PR c++/101072
	* semantics.cc (finish_compound_literal): Restore VECTOR_TYPE check.

2022-01-26  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104226
	* constexpr.cc (init_subob_ctx): For vector ctors containing
	vector elements, ensure appending to the same ctor instead of
	creating another one.

2022-01-26  Marek Polacek  <polacek@redhat.com>

	PR target/104213
	* decl.cc (finish_constructor_body): Suppress -Wuse-after-free.
	(finish_destructor_body): Likewise.
	* optimize.cc (build_delete_destructor_body): Likewise.

2022-01-26  Jason Merrill  <jason@redhat.com>

	PR c++/104235
	* parser.cc (cp_parser_template_name): Repeat lookup of USING_DECL.

2022-01-26  Jason Merrill  <jason@redhat.com>

	PR c++/103057
	* pt.cc (tsubst_aggr_type): Call tsubst for alias template
	specialization.

2022-01-25  Patrick Palka  <ppalka@redhat.com>

	PR c++/101532
	PR c++/104225
	* decl2.cc (mark_used): Don't consider maybe_instantiate_noexcept
	on a deleted function.

2022-01-25  Jason Merrill  <jason@redhat.com>

	PR c++/59950
	* call.cc (build_over_call): Use cp_build_indirect_ref.

2022-01-24  Patrick Palka  <ppalka@redhat.com>

	PR c++/104197
	* pt.cc (make_auto_1): Use -1 as a placeholder default argument
	for level.

2022-01-24  Patrick Palka  <ppalka@redhat.com>

	PR c++/104173
	* typeck.cc (build_class_member_access_expr): Extend
	unary_complex_lvalue result adjustment to preserve all
	rvalues, not just xvalues.

2022-01-23  Will Wray  <wjwray@gmail.com>

	PR c++/55227
	* decl.cc (reshape_init_r): Only call has_designator_check when
	first_initializer_p or for the inner constructor element.
	(cp_complete_array_type): Call reshape_init on braced-init-list.

2022-01-23  Jason Merrill  <jason@redhat.com>

	PR c++/104182
	* cp-gimplify.cc (cp_genericize_target_expr): Make sure nothing
	has set DECL_INITIAL on a TARGET_EXPR slot.
	* tree.cc (is_local_temp): Don't check DECL_CONTEXT.

2022-01-23  Jason Merrill  <jason@redhat.com>

	PR c++/101072
	* cp-tree.h (build_implicit_conv_flags): Declare.
	* call.cc (build_implicit_conv_flags): Split out from...
	(perform_implicit_conversion_flags): ...here.
	* decl.cc (check_initializer): Use it.
	* pt.cc (tsubst_copy_and_build): Remove TARGET_EXPR handling.
	* semantics.cc (finish_compound_literal): Don't treat
	scalar values like CONSTRUCTORs.

2022-01-21  Jason Merrill  <jason@redhat.com>

	* semantics.cc (find_failing_clause): Return expr if not
	decomposable.
	(finish_static_assert): Show constant values in failing
	comparison.

2022-01-21  Jason Merrill  <jason@redhat.com>

	PR c++/104084
	PR c++/20040
	* init.cc (build_new_1): Only pull out TARGET_EXPR_INITIAL if
	alloc_expr is a TARGET_EXPR.

2022-01-21  Marek Polacek  <polacek@redhat.com>

	PR c++/101715
	* tree.cc (fixup_deferred_exception_variants): Remove duplicate
	variants after parsing the exception specifications.

2022-01-21  Jason Merrill  <jason@redhat.com>

	PR c++/104139
	PR c++/103681
	* class.cc (end_of_class): Use base_binfo.

2022-01-20  Jason Merrill  <jason@redhat.com>

	PR c++/101405
	* decl.cc (reshape_init_class): Reject designator for a member of
	another class.

2022-01-20  Patrick Palka  <ppalka@redhat.com>

	PR c++/91911
	PR c++/103672
	* pt.cc (keep_template_parm): Punt on a level 0 template parm.
	(tsubst_decl) <case VAR_DECL>: Remove !CHECKING_P safeguard.
	(tsubst) <case TEMPLATE_TYPE_PARM>: Handle CTAD placeholders
	specially.
	(make_auto_1): Add defaulted 'level' parameter.
	(make_template_placeholder): Pass 0 as 'level' to make_auto_1.

2022-01-20  Patrick Palka  <ppalka@redhat.com>

	* decl.cc (grokdeclarator): Diagnose a CTAD placeholder as
	function return type even when !funcdecl_p.

2022-01-20  Martin Liska  <mliska@suse.cz>

	PR c++/104134
	* error.cc (dump_aggr_type): Partially disable the warning.

2022-01-20  Jason Merrill  <jason@redhat.com>

	PR c++/102300
	* parser.cc (cp_parser_template_name): Use dependent_scope_p.

2022-01-19  David Malcolm  <dmalcolm@redhat.com>

	* cp-lang.cc (selftest::run_cp_tests): Update calls for .c to .cc
	renaming.
	* cp-tree.h (cp_pt_c_tests): Rename to...
	(cp_pt_cc_tests): ...this.
	(cp_tree_c_tests): Rename to...
	(cp_tree_cc_tests): ...this.
	* pt.cc (cp_pt_c_tests): Rename to...
	(cp_pt_cc_tests): ...this.
	* tree.cc (cp_tree_c_tests): Rename to...
	(cp_tree_cc_tests): ...this.

2022-01-19  Jason Merrill  <jason@redhat.com>

	* parser.cc (saved_token_sentinel::rollback): Use
	cp_lexer_previous_token.

2022-01-18  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104055
	* constexpr.cc (cxx_eval_outermost_constant_expr): If t is a
	TARGET_EXPR with TARGET_EXPR_CLEANUP, use get_target_expr rather
	than get_target_expr_sfinae with tf_no_cleanup, and don't set
	TREE_CONSTANT.

2022-01-18  Jason Merrill  <jason@redhat.com>
	    Jakub Jelinek   <jakub@redhat.com>

	PR c++/104025
	* parser.cc (saved_token_sentinel::rollback): Call
	cp_lexer_set_source_position.
	(~saved_token_sentinel): Call rollback.

2022-01-18  Patrick Palka  <ppalka@redhat.com>

	PR c++/104074
	* pt.cc (invalid_nontype_parm_type_p): Use WILDCARD_TYPE_P so
	that we return false for DEPENDENT_OPERATOR_TYPE too.

2022-01-17  Martin Liska  <mliska@suse.cz>

	* Make-lang.in: Rename .c names to .cc.
	* config-lang.in: Likewise.
	* constexpr.cc (cxx_eval_constant_expression): Likewise.
	* coroutines.cc (morph_fn_to_coro): Likewise.
	* cp-gimplify.cc (cp_gimplify_expr): Likewise.
	* cp-lang.cc (struct lang_hooks): Likewise.
	(get_template_argument_pack_elems_folded): Likewise.
	* cp-objcp-common.cc (cp_tree_size): Likewise.
	(cp_unit_size_without_reusable_padding): Likewise.
	(pop_file_scope): Likewise.
	(cp_pushdecl): Likewise.
	* cp-objcp-common.h (GCC_CP_OBJCP_COMMON): Likewise.
	(cxx_simulate_record_decl): Likewise.
	* cp-tree.h (struct named_label_entry): Likewise.
	(current_function_return_value): Likewise.
	(more_aggr_init_expr_args_p): Likewise.
	(get_function_version_dispatcher): Likewise.
	(common_enclosing_class): Likewise.
	(strip_fnptr_conv): Likewise.
	(current_decl_namespace): Likewise.
	(do_aggregate_paren_init): Likewise.
	(cp_check_const_attributes): Likewise.
	(qualified_name_lookup_error): Likewise.
	(generic_targs_for): Likewise.
	(mark_exp_read): Likewise.
	(is_global_friend): Likewise.
	(maybe_reject_flexarray_init): Likewise.
	(module_token_lang): Likewise.
	(handle_module_option): Likewise.
	(literal_integer_zerop): Likewise.
	(build_extra_args): Likewise.
	(build_if_nonnull): Likewise.
	(maybe_check_overriding_exception_spec): Likewise.
	(finish_omp_target_clauses): Likewise.
	(maybe_warn_zero_as_null_pointer_constant): Likewise.
	(cxx_print_error_function): Likewise.
	(decl_in_std_namespace_p): Likewise.
	(merge_exception_specifiers): Likewise.
	(mangle_module_global_init): Likewise.
	(cxx_block_may_fallthru): Likewise.
	(fold_builtin_source_location): Likewise.
	(enum cp_oracle_request): Likewise.
	(subsumes): Likewise.
	(cp_finish_injected_record_type): Likewise.
	(vtv_build_vtable_verify_fndecl): Likewise.
	(cp_tree_c_finish_parsing): Likewise.
	* cvt.cc (diagnose_ref_binding): Likewise.
	(convert_to_void): Likewise.
	(convert_force): Likewise.
	(type_promotes_to): Likewise.
	* decl.cc (make_unbound_class_template_raw): Likewise.
	(cxx_init_decl_processing): Likewise.
	(check_class_member_definition_namespace): Likewise.
	(cxx_maybe_build_cleanup): Likewise.
	* decl2.cc (maybe_emit_vtables): Likewise.
	* error.cc (dump_function_name): Likewise.
	* init.cc (is_class_type): Likewise.
	(build_new_1): Likewise.
	* lang-specs.h: Likewise.
	* method.cc (make_alias_for_thunk): Likewise.
	* module.cc (specialization_add): Likewise.
	(module_state::read_cluster): Likewise.
	* name-lookup.cc (check_extern_c_conflict): Likewise.
	* name-lookup.h (struct cxx_binding): Likewise.
	* parser.cc (cp_parser_identifier): Likewise.
	* parser.h (struct cp_parser): Likewise.
	* pt.cc (has_value_dependent_address): Likewise.
	(push_tinst_level_loc): Likewise.
	* semantics.cc (finish_omp_clauses): Likewise.
	(finish_omp_atomic): Likewise.
	* tree.cc (cp_save_expr): Likewise.
	(cp_free_lang_data): Likewise.
	* typeck.cc (cp_common_type): Likewise.
	(strip_array_domain): Likewise.
	(rationalize_conditional_expr): Likewise.
	(check_return_expr): Likewise.
	* vtable-class-hierarchy.cc: Likewise.

2022-01-17  Martin Liska  <mliska@suse.cz>

	* call.c: Moved to...
	* call.cc: ...here.
	* class.c: Moved to...
	* class.cc: ...here.
	* constexpr.c: Moved to...
	* constexpr.cc: ...here.
	* cp-gimplify.c: Moved to...
	* cp-gimplify.cc: ...here.
	* cp-lang.c: Moved to...
	* cp-lang.cc: ...here.
	* cp-objcp-common.c: Moved to...
	* cp-objcp-common.cc: ...here.
	* cp-ubsan.c: Moved to...
	* cp-ubsan.cc: ...here.
	* cvt.c: Moved to...
	* cvt.cc: ...here.
	* cxx-pretty-print.c: Moved to...
	* cxx-pretty-print.cc: ...here.
	* decl.c: Moved to...
	* decl.cc: ...here.
	* decl2.c: Moved to...
	* decl2.cc: ...here.
	* dump.c: Moved to...
	* dump.cc: ...here.
	* error.c: Moved to...
	* error.cc: ...here.
	* except.c: Moved to...
	* except.cc: ...here.
	* expr.c: Moved to...
	* expr.cc: ...here.
	* friend.c: Moved to...
	* friend.cc: ...here.
	* g++spec.c: Moved to...
	* g++spec.cc: ...here.
	* init.c: Moved to...
	* init.cc: ...here.
	* lambda.c: Moved to...
	* lambda.cc: ...here.
	* lex.c: Moved to...
	* lex.cc: ...here.
	* mangle.c: Moved to...
	* mangle.cc: ...here.
	* method.c: Moved to...
	* method.cc: ...here.
	* name-lookup.c: Moved to...
	* name-lookup.cc: ...here.
	* optimize.c: Moved to...
	* optimize.cc: ...here.
	* parser.c: Moved to...
	* parser.cc: ...here.
	* pt.c: Moved to...
	* pt.cc: ...here.
	* ptree.c: Moved to...
	* ptree.cc: ...here.
	* rtti.c: Moved to...
	* rtti.cc: ...here.
	* search.c: Moved to...
	* search.cc: ...here.
	* semantics.c: Moved to...
	* semantics.cc: ...here.
	* tree.c: Moved to...
	* tree.cc: ...here.
	* typeck.c: Moved to...
	* typeck.cc: ...here.
	* typeck2.c: Moved to...
	* typeck2.cc: ...here.
	* vtable-class-hierarchy.c: Moved to...
	* vtable-class-hierarchy.cc: ...here.

2022-01-17  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104031
	* cp-gimplify.c (cp_genericize_target_expr): Set DECL_CONTEXT of
	TARGET_EXPR_SLOT to current_function_decl if it was NULL.

2022-01-17  Andrew Stubbs  <ams@codesourcery.com>

	* parser.c (cp_parser_omp_requires): Don't "sorry" dynamic_allocators.

2022-01-14  Chung-Lin Tang  <cltang@codesourcery.com>

	PR c++/103705
	* semantics.c (finish_omp_clauses): Also continue peeling off of
	outer node for ARRAY_REFs.

2022-01-14  Jakub Jelinek  <jakub@redhat.com>

	PR c++/103991
	* cp-objcp-common.c (cxx_block_may_fallthru) <case IF_STMT>: For
	IF_STMT_CONSTEXPR_P with constant false or true condition only
	check if the taken clause may fall through.
	* cp-gimplify.c (genericize_if_stmt): For consteval if, revert
	to r12-5638^ behavior if then_ block can't fall through.  For
	constexpr if, revert to r12-5638^ behavior.

2022-01-13  Anthony Sharp  <anthonysharp15@gmail.com>
	    Jason Merrill  <jason@redhat.com>

	PR c++/70417
	* parser.c (cp_parser_id_expression): Handle
	-Wmissing-template-keyword.
	(struct saved_token_sentinel): Add modes to control what happens
	on destruction.
	(cp_parser_statement): Adjust.
	(cp_parser_skip_entire_template_parameter_list): New function that
	skips an entire template parameter list.
	(cp_parser_require_end_of_template_parameter_list): Rename old
	cp_parser_skip_to_end_of_template_parameter_list.
	(cp_parser_skip_to_end_of_template_parameter_list): Refactor to be
	called from one of the above two functions.
	(cp_parser_lambda_declarator_opt)
	(cp_parser_explicit_template_declaration)
	(cp_parser_enclosed_template_argument_list): Adjust.

2022-01-12  Jakub Jelinek  <jakub@redhat.com>
	    Jason Merrill  <jason@redhat.com>

	PR c++/103480
	* tree.c (move): If expr is xvalue_p, just return expr without
	build_static_cast.

2022-01-11  Jakub Jelinek  <jakub@redhat.com>

	PR c++/101597
	* class.c (build_vfn_ref): Build OBJ_TYPE_REF with INTEGER_CST
	OBJ_TYPE_REF_TOKEN with type equal to OBJ_TYPE_REF_OBJECT type.
	* error.c (resolve_virtual_fun_from_obj_type_ref): Use type of
	OBJ_TYPE_REF_TOKEN rather than type of OBJ_TYPE_REF_OBJECT as
	obj_type.

2022-01-11  Patrick Palka  <ppalka@redhat.com>

	PR c++/103831
	* call.c (build_new_method_call): Consider dependent bases only
	if 'this' is available.

2022-01-11  Olivier Hainque  <hainque@adacore.com>

	* decl.c (cxx_init_decl_processing): Move code possibly
	altering flag_weak before code testing it.

2022-01-10  Patrick Palka  <ppalka@redhat.com>

	PR c++/103879
	* constexpr.c (cxx_fold_indirect_ref): Split out object/offset
	canonicalization step into a local lambda.  Strengthen it to
	absorb more components at position 0.  Use it before both calls
	to cxx_fold_indirect_ref_1.

2022-01-10  Patrick Palka  <ppalka@redhat.com>

	PR c++/103783
	* call.c (cand_parms_match): Skip over 'this' when given one
	static and one non-static member function.

2022-01-10  Jakub Jelinek  <jakub@redhat.com>

	PR c++/103912
	* semantics.c (expand_or_defer_fn): For immediate functions, set
	node->body_removed to true and clear analyzed, definition and
	force_output.
	* decl2.c (c_parse_final_cleanups): Ignore immediate functions for
	expand_or_defer_fn.

2022-01-08  Jakub Jelinek  <jakub@redhat.com>

	PR c++/89074
	* constexpr.c (cxx_maybe_fold_addr_pointer_plus): New function.
	(cxx_eval_binary_expression): Use it.

2022-01-08  Jason Merrill  <jason@redhat.com>

	PR c++/103946
	* init.c (build_vec_init): Remove assert.
	* tree.c (build_vec_init_expr): Likewise.

2022-01-08  Jason Merrill  <jason@redhat.com>

	PR c++/100588
	* call.c (build_op_delete_call): Ignore destroying delete
	if alloc_fn.

2022-01-07  Jason Merrill  <jason@redhat.com>

	PR c++/20040
	* init.c (build_new_1): Also build pointer cleanup if
	TYPE_GETS_DELETE.
	* cp-tree.h (TYPE_GETS_VEC_DELETE): New.

2022-01-07  Jason Merrill  <jason@redhat.com>

	PR c++/103936
	PR c++/65591
	* cp-gimplify.c (cp_gimplify_expr): Restore VEC_INIT_EXPR handling.

2022-01-07  Jason Merrill  <jason@redhat.com>

	PR c++/103711
	* init.c (perform_target_ctor): Select destructor by in_chrg.

2022-01-07  Jason Merrill  <jason@redhat.com>

	PR c++/61611
	* except.c (in_nested_catch): New.
	(expand_end_catch_block): Check it.

2022-01-07  Jason Merrill  <jason@redhat.com>

	PR c++/33799
	PR c++/102191
	* except.c (maybe_splice_retval_cleanup): Check
	current_binding_level.
	* semantics.c (do_poplevel): Call it here.
	* parser.c (cp_parser_compound_statement): Not here.

2022-01-07  Jason Merrill  <jason@redhat.com>

	PR c++/53868
	* decl.c (cp_finish_decl): Use wrap_temporary_cleanups for
	cleanups from set_up_extended_ref_temp.
	(wrap_temporary_cleanups): Ignore array cleanups.
	(initialize_local_var): Don't check for array here.
	* cp-tree.h (BIND_EXPR_VEC_DTOR): New.
	* init.c (build_vec_delete_1): Set it.

2022-01-07  Jason Merrill  <jason@redhat.com>

	PR c++/66451
	* init.c (build_vec_delete_1): Handle throwing dtor.
	(build_vec_init): Tell it we're in a cleanup already.

2022-01-07  Jason Merrill  <jason@redhat.com>

	* typeck2.c (split_nonconstant_init_1): Don't cleanup the last elt.
	(split_nonconstant_init): Adjust.

2022-01-07  Jason Merrill  <jason@redhat.com>

	PR c++/66139
	PR c++/52320
	* constexpr.c (replace_decl): Rename from replace_result_decl.
	* cp-tree.h (replace_decl): Declare it.
	* cp-gimplify.c (cp_gimplify_init_expr): Call it.
	(cp_gimplify_expr): Don't handle VEC_INIT_EXPR.
	(cp_genericize_init, cp_genericize_init_expr)
	(cp_genericize_target_expr): New.
	(cp_fold_r): Call them.
	* tree.c (build_array_copy): Add a TARGET_EXPR.
	* typeck2.c (digest_init_r): Look through a TARGET_EXPR.

2022-01-07  Jason Merrill  <jason@redhat.com>

	PR c++/94041
	* decl.c (initialize_local_var): Fix comment.
	* init.c (build_new_1): Do stabilize array init.
	(build_vec_init): Use TARGET_EXPR for cleanup.  Initialization
	of an element from an explicit initializer is not a
	full-expression.
	* tree.c (expand_vec_init_expr): Pass flags through.
	* typeck2.c (split_nonconstant_init_1): Handle VEC_INIT_EXPR.
	(split_nonconstant_init): Handle array cleanups.
	* cp-tree.h: Adjust.

2022-01-07  Jason Merrill  <jason@redhat.com>

	PR c++/94041
	* decl.c (check_initializer): Remove obsolete comment.
	(wrap_cleanups_r): Don't wrap CLEANUP_EH_ONLY.
	(initialize_local_var): Change assert to test.
	* typeck2.c (maybe_push_temp_cleanup): New.
	(split_nonconstant_init_1): Use it.
	(split_nonconstant_init): Clear cleanup flags.

2022-01-07  Jason Merrill  <jason@redhat.com>

	PR c++/92385
	* typeck2.c (PICFLAG_VEC_INIT): New.
	(process_init_constructor_array): Set it.
	(process_init_constructor): Handle it.
	(split_nonconstant_init_1): Handle VEC_INIT_EXPR.
	* init.c (build_vec_init): Likewise.
	* cp-gimplify.c (cp_gimplify_expr): Factor out...
	* tree.c (expand_vec_init_expr): ...this function.
	(build_vec_init_elt): Handle BRACE_ENCLOSED_INITIALIZER_P.
	(build_vec_init_expr): Likewise.
	* constexpr.c (cxx_eval_vec_init): Likewise.
	(reduced_constant_expression_p): Check arrays before C++20.
	* cp-tree.h (expand_vec_init_expr): Declare.

2022-01-07  Jason Merrill  <jason@redhat.com>

	* init.c (build_new_1): Remove preevaluation code.

2022-01-05  Nathan Sidwell  <nathan@acm.org>

	* pt.c (instantiate_class_template_1): Process attribute((used)) set
	in class's context.

2022-01-05  Nathan Sidwell  <nathan@acm.org>

	* init.c (build_new_1): Check complain before alignment warning.

2022-01-04  Jason Merrill  <jason@redhat.com>

	* cp-tree.h (class releasing_vec): Add begin/end fns.

2022-01-04  Jason Merrill  <jason@redhat.com>

	* init.c: Include -*- C++ -*- on first line.

2022-01-03  Marek Polacek  <polacek@redhat.com>

	PR c++/103758
	* parser.c (cp_parser_decl_specifier_seq): Replace %<decl-specifier%>
	with %qD.

2022-01-03  Marek Polacek  <polacek@redhat.com>

	* parser.c (make_char_string_pack): Add a cast to const unsigned
	char *.

2022-01-03  Jakub Jelinek  <jakub@redhat.com>

	PR c++/103600
	* rtti.c (get_tinfo_decl_direct): Add "non overlapping" attribute
	to DECL_TINFO_P VAR_DECLs.

2022-01-02  Jason Merrill  <jason@redhat.com>

	* init.c (build_vec_init): Append the decrement to elt_init.

2022-01-02  Jason Merrill  <jason@redhat.com>

	* decl.c (wrap_cleanups_r): Don't wrap if noexcept.


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