path: root/gcc/cp/ChangeLog

2022-10-12  Marek Polacek  <polacek@redhat.com>

	* call.cc (standard_conversion): Remove LOOKUP_PREFER_RVALUE code.
	(reference_binding): Honor clk_implicit_rval even pre-C++20.
	(implicit_conversion_1): Remove LOOKUP_PREFER_RVALUE code.
	(build_user_type_conversion_1): Likewise.
	(convert_like_internal): Likewise.
	(build_over_call): Likewise.
	* cp-tree.h (LOOKUP_PREFER_RVALUE): Remove.
	(LOOKUP_NO_NARROWING): Adjust definition.
	* except.cc (build_throw): Don't perform two overload resolutions.
	* typeck.cc (maybe_warn_pessimizing_move): Don't use
	LOOKUP_PREFER_RVALUE.
	(check_return_expr): Don't perform two overload resolutions.

2022-10-12  Jason Merrill  <jason@redhat.com>

	DR 2631
	* cp-tree.h (source_location_current_p): Remove.
	* name-lookup.h (struct cp_binding_level): Remove
	immediate_fn_ctx_p.
	* call.cc (in_immediate_context): All default args
	and DMI are potentially immediate context.
	(immediate_invocation_p): Don't treat source_location specially.
	(struct in_consteval_if_p_temp_override): Move to cp-tree.h.
	* constexpr.cc (get_nth_callarg): Move to cp-tree.h.
	* cp-gimplify.cc (cp_fold_r): Don't fold consteval.
	* name-lookup.cc (begin_scope): Don't set immediate_fn_ctx_p.
	* parser.cc (cp_parser_lambda_declarator_opt): Likewise.
	(cp_parser_direct_declarator): Likewise.
	* pt.cc (tsubst_default_argument): Open sk_function_parms level.
	* tree.cc (source_location_current_p): Remove.
	(bot_replace): Fold consteval here.
	(break_out_target_exprs): Handle errors.

2022-10-11  Patrick Palka  <ppalka@redhat.com>

	PR c++/100134
	* pt.cc (tsubst_friend_function): Propagate DECL_MODULE_PURVIEW_P
	from the introduced namespace-scope function to the namespace.

2022-10-11  Patrick Palka  <ppalka@redhat.com>

	PR c++/99377
	* module.cc (lazy_load_binding): Clear processing_template_decl.
	(lazy_load_pendings): Likewise.

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

	* mangle.cc (write_prefix): Add VAR_DECL & FIELD_DECL to
	substitution table under abi=18.  Note possible mismatch.

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

	PR c++/106937
	* error.cc: Include "attribs.h".
	(dump_type_prefix): Print only GNU attributes here.
	(dump_type_suffix): Print standard attributes here.

2022-10-08  Jason Merrill  <jason@redhat.com>

	* cp-tree.h (TARGET_EXPR_ELIDING_P): New.
	(unsafe_copy_elision_p, set_target_expr_eliding)
	(cp_build_init_expr): Declare.
	* call.cc (unsafe_copy_elision_p): No longer static.
	(build_over_call, build_special_member_call)
	(build_new_method_call): Use cp_build_init_expr.
	* coroutines.cc (expand_one_await_expression)
	(build_actor_fn, flatten_await_stmt, handle_nested_conditionals)
	(await_statement_walker, morph_fn_to_coro): Use cp_build_init_expr.
	* cp-gimplify.cc (cp_gimplify_init_expr)
	(cp_gimplify_expr): Check TARGET_EXPR_ELIDING_P.
	(cp_fold_r): Propagate it.
	(cp_fold): Use cp_build_init_expr.
	* decl.cc (check_initializer): Use cp_build_init_expr.
	* except.cc (build_throw): Use cp_build_init_expr.
	* init.cc (get_nsdmi): Call set_target_expr_eliding.
	(perform_member_init, expand_default_init, expand_aggr_init_1)
	(build_new_1, build_vec_init): Use cp_build_init_expr.
	* method.cc (do_build_copy_constructor): Use cp_build_init_expr.
	* semantics.cc (simplify_aggr_init_expr, finalize_nrv_r)
	(finish_omp_reduction_clause): Use cp_build_init_expr.
	* tree.cc (build_target_expr): Call set_target_expr_eliding.
	(bot_manip): Copy TARGET_EXPR_ELIDING_P.
	* typeck.cc (cp_build_modify_expr): Call set_target_expr_eliding.
	(check_return_expr): Use cp_build_modify_expr.
	* typeck2.cc (split_nonconstant_init_1)
	(split_nonconstant_init): Use cp_build_init_expr.
	(massage_init_elt): Call set_target_expr_eliding.
	(process_init_constructor_record): Clear TARGET_EXPR_ELIDING_P on
	unsafe copy elision.
	(set_target_expr_eliding, cp_build_init_expr): New.

2022-10-07  Marek Polacek  <polacek@redhat.com>

	PR c++/107085
	* call.cc (conv_binds_ref_to_temporary): New.
	(ref_conv_binds_directly): Rename to...
	(ref_conv_binds_to_temporary): ...this.  Use
	conv_binds_ref_to_temporary.
	* cp-tree.h (ref_conv_binds_directly): Rename to...
	(ref_conv_binds_to_temporary): ...this.
	* method.cc (ref_xes_from_temporary): Use ref_conv_binds_to_temporary.
	* parser.cc (warn_for_range_copy): Likewise.

2022-10-07  Qing Zhao  <qing.zhao@oracle.com>

	* module.cc (trees_out::core_bools): Stream out new bit
	decl_not_flexarray.
	(trees_in::core_bools): Stream in new bit decl_not_flexarray.

2022-10-07  Patrick Palka  <ppalka@redhat.com>

	* module.cc (trees_out::mark_class_def): Guard against
	DECL_BIT_FIELD_REPRESENTATIVE not being a decl.

2022-10-07  Jason Merrill  <jason@redhat.com>

	* init.cc (expand_default_init): Also push the INIT_EXPR inside a
	CLEANUP_POINT_EXPR.

2022-10-07  Patrick Palka  <ppalka@redhat.com>

	PR c++/104433
	* module.cc (trees_out::core_bools): Don't override
	DECL_EXTERNAL to true for static variables from an inline
	function.

2022-10-07  Martin Liska  <mliska@suse.cz>

	* module.cc (enum module_state_counts): Use array size.
	* name-lookup.cc (class namespace_limit_reached): Likewise.
	(class module_state): Move up in the file.

2022-10-07  Jakub Jelinek  <jakub@redhat.com>

	* parser.cc (cp_parser_check_std_attribute): Only do checks if
	attribute is a standard attribute or in gnu namespace and only
	lookup other attributes in those namespaces.
	* cp-gimplify.cc (lookup_hotness_attribute): Adjust function comment.
	Only return true for standard attribute or gnu namespace attribute.
	(remove_hotness_attribute): Only remove hotness attributes when
	they are standard or in gnu namespace, implement it in a single
	loop rather than former 4 now 8 remove_attribute calls.

2022-10-06  Jason Merrill  <jason@redhat.com>

	* coroutines.cc (expand_one_await_expression): Change conversion
	to VIEW_CONVERT_EXPR.
	* cp-gimplify.cc (cp_genericize_r) [CONVERT_EXPR]: Add assert.

2022-10-06  Joseph Myers  <joseph@codesourcery.com>

	* lex.cc (init_reswords): Handle D_EXT11.

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

	* pt.cc (optimize_specialization_lookup_p): Remove.
	(retrieve_specialization): Assume the above returns false
	and simplify accordingly.
	(register_specialization): Likewise.

2022-10-06  Jakub Jelinek  <jakub@redhat.com>

	* parser.cc (cp_parser_omp_assumption_clauses): Emit IFN_ASSUME
	call for holds clause on assume construct.

2022-10-06  Jakub Jelinek  <jakub@redhat.com>

	PR c++/106654
	* cp-tree.h (process_stmt_assume_attribute): Implement C++23
	P1774R8 - Portable assumptions.  Declare.
	(diagnose_failing_condition): Declare.
	(find_failing_clause): Likewise.
	* parser.cc (assume_attr): New enumerator.
	(cp_parser_parenthesized_expression_list): Handle assume_attr.
	Remove identifier variable, for id_attr push the identifier into
	expression_list right away instead of inserting it before all the
	others at the end.
	(cp_parser_conditional_expression): New function.
	(cp_parser_constant_expression): Use it.
	(cp_parser_statement): Handle assume attribute.
	(cp_parser_expression_statement): Likewise.
	(cp_parser_gnu_attribute_list): Use assume_attr for assume
	attribute.
	(cp_parser_std_attribute): Likewise.  Handle standard assume
	attribute like gnu::assume.
	* cp-gimplify.cc (process_stmt_assume_attribute): New function.
	* constexpr.cc: Include fold-const.h.
	(find_failing_clause_r, find_failing_clause): New functions,
	moved from semantics.cc with ctx argument added and if non-NULL,
	call cxx_eval_constant_expression rather than fold_non_dependent_expr.
	(cxx_eval_internal_function): Handle IFN_ASSUME.
	(potential_constant_expression_1): Likewise.
	* pt.cc (tsubst_copy_and_build): Likewise.
	* semantics.cc (diagnose_failing_condition): New function.
	(find_failing_clause_r, find_failing_clause): Moved to constexpr.cc.
	(finish_static_assert): Use it.  Add auto_diagnostic_group.

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

	* tree.cc (lvalue_kind) [VIEW_CONVERT_EXPR]: Change prvalue to
	xvalue.

2022-10-04  Jason Merrill  <jason@redhat.com>

	PR c++/107154
	* cp-gimplify.cc (cp_genericize_init_expr): Use iloc_sentinel.
	(cp_genericize_target_expr): Likewise.

2022-10-04  Patrick Palka  <ppalka@redhat.com>

	PR c++/107136
	* Make-lang.in (CP_PLUGIN_HEADERS): Add cp-trait.def.

2022-10-04  Jakub Jelinek  <jakub@redhat.com>

	* cp-tree.h (struct omp_declare_target_attr): Rename to ...
	(cp_omp_declare_target_attr): ... this.  Add device_type member.
	(omp_begin_assumes_data): Rename to ...
	(cp_omp_begin_assumes_data): ... this.
	(struct saved_scope): Change types of omp_declare_target_attribute
	and omp_begin_assumes.
	* parser.cc (cp_parser_omp_clause_device_type): Uncomment
	check_no_duplicate_clause call.
	(cp_parser_omp_all_clauses): Fix up pasto, c_name for OMP_CLAUSE_LINK
	should be "link" rather than "to".
	(cp_parser_omp_declare_target): Adjust for omp_declare_target_attr
	to cp_omp_declare_target_attr changes, push -1 as device_type.  Use
	error_at rather than warning_at for declare target with only
	device_type clauses.
	(OMP_BEGIN_DECLARE_TARGET_CLAUSE_MASK): Define.
	(cp_parser_omp_begin): Add begin declare target support.  Adjust
	for omp_begin_assumes_data to cp_omp_begin_assumes_data change.
	(cp_parser_omp_end): Adjust for the
	omp_declare_target_attr to cp_omp_declare_target_attr and
	omp_begin_assumes_data to cp_omp_begin_assumes_data type changes,
	adjust diagnostics wording and simplify format strings for easier
	translations.
	* semantics.cc (finish_translation_unit): Likewise.
	* decl2.cc (cplus_decl_attributes): If device_type was present on
	begin declare target, add "omp declare target host" and/or
	"omp declare target nohost" attributes.

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

	* cp-tree.h (BCS_STMT_EXPR): New enumerator.
	* name-lookup.h (enum scope_kind): Add sk_stmt_expr.
	* name-lookup.cc (begin_scope): Handle sk_stmt_expr like sk_block.
	* semantics.cc (begin_compound_stmt): For BCS_STMT_EXPR use
	sk_stmt_expr.
	* parser.cc (cp_parser_statement_expr): Use BCS_STMT_EXPR instead of
	BCS_NORMAL.
	* decl.cc (struct named_label_entry): Add in_stmt_expr.
	(poplevel_named_label_1): Handle sk_stmt_expr.
	(check_previous_goto_1): Diagnose entering of statement expression.
	(check_goto): Likewise.

2022-10-03  Patrick Palka  <ppalka@redhat.com>

	* constraint.cc (diagnose_trait_expr): Use CPTK_IS_SAME instead
	of CPTK_IS_SAME_AS.
	* cp-trait.def (IS_SAME_AS): Rename to ...
	(IS_SAME): ... this.
	* pt.cc (alias_ctad_tweaks): Use CPTK_IS_SAME instead of
	CPTK_IS_SAME_AS.
	* semantics.cc (trait_expr_value): Likewise.
	(finish_trait_expr): Likewise.

2022-10-01  Patrick Palka  <ppalka@redhat.com>

	* semantics.cc (trait_expr_value): Make cp_trait_kind switch
	statement exhaustive.
	(finish_trait_expr): Likewise.
	(finish_trait_type): Likewise.

2022-10-01  Jason Merrill  <jason@redhat.com>

	* init.cc (build_vec_init): Clear from_array for CONSTRUCTOR
	initializer.

2022-10-01  Jason Merrill  <jason@redhat.com>

	* cp-gimplify.cc (cp_genericize_init): Also convert the result of
	split_nonconstant_init to void.

2022-09-30  Patrick Palka  <ppalka@redhat.com>

	* constraint.cc (diagnose_trait_expr): Likewise.
	* cp-objcp-common.cc (names_builtin_p): Likewise.
	* cp-tree.h (enum cp_trait_kind): Likewise.
	* cxx-pretty-print.cc (pp_cxx_trait): Likewise.
	* parser.cc (cp_keyword_starts_decl_specifier_p): Likewise.
	(cp_parser_primary_expression): Likewise.
	(cp_parser_trait): Likewise.
	(cp_parser_simple_type_specifier): Likewise.
	* cp-trait.def: New file.

2022-09-30  Jason Merrill  <jason@redhat.com>

	* cp-gimplify.cc (cp_fold_r) [TARGET_EXPR]: Collapse
	TARGET_EXPR within TARGET_EXPR.
	* constexpr.cc (cxx_eval_outermost_constant_expr): Avoid
	adding redundant TARGET_EXPR.
	* cp-tree.h (target_expr_needs_replace): VEC_INIT_EXPR doesn't.

2022-09-29  Patrick Palka  <ppalka@redhat.com>

	PR c++/102576
	* pt.cc (listify): Use lookup_qualified_name instead of
	get_namespace_binding.

2022-09-29  Jason Merrill  <jason@redhat.com>

	* class.cc (check_methods): Call constraints_satisfied_p.

2022-09-29  Jason Merrill  <jason@redhat.com>

	* constexpr.cc (potential_constant_expression_1): Look into
	DECL_INITIAL.  Use location wrappers.

2022-09-29  Jason Merrill  <jason@redhat.com>

	PR c++/93046
	* call.cc (build_conditional_expr): For a?:c extension, treat
	a reused class prvalue as an xvalue.

2022-09-29  Jason Merrill  <jason@redhat.com>

	* call.cc (build_conditional_expr): Set TARGET_EXPR_NO_ELIDE on the
	outer TARGET_EXPR.

2022-09-29  Patrick Palka  <ppalka@redhat.com>

	* constraint.cc (diagnose_trait_expr): Handle CPTK_REMOVE_CV,
	CPTK_REMOVE_REFERENCE and CPTK_REMOVE_CVREF.
	* cp-objcp-common.cc (names_builtin_p): Likewise.
	* cp-tree.h (enum cp_trait_kind): Add CPTK_REMOVE_CV,
	CPTK_REMOVE_REFERENCE and CPTK_REMOVE_CVREF.
	* cxx-pretty-print.cc (pp_cxx_trait): Handle CPTK_REMOVE_CV,
	CPTK_REMOVE_REFERENCE and CPTK_REMOVE_CVREF.
	* parser.cc (cp_keyword_starts_decl_specifier_p): Return true
	for RID_REMOVE_CV, RID_REMOVE_REFERENCE and RID_REMOVE_CVREF.
	(cp_parser_trait): Handle RID_REMOVE_CV, RID_REMOVE_REFERENCE
	and RID_REMOVE_CVREF.
	(cp_parser_simple_type_specifier): Likewise.
	* semantics.cc (finish_trait_type): Likewise.

2022-09-29  Patrick Palka  <ppalka@redhat.com>

	* cp-objcp-common.cc (cp_common_init_ts): Replace
	UNDERLYING_TYPE with TRAIT_TYPE.
	* cp-tree.def (TRAIT_TYPE): Define.
	(UNDERLYING_TYPE): Remove.
	* cp-tree.h (TRAIT_TYPE_KIND_RAW): Define.
	(TRAIT_TYPE_KIND): Define.
	(TRAIT_TYPE_TYPE1): Define.
	(TRAIT_TYPE_TYPE2): Define.
	(WILDCARD_TYPE_P): Return true for TRAIT_TYPE.
	(finish_trait_type): Declare.
	* cxx-pretty-print.cc (cxx_pretty_printer::primary_expression):
	Adjust after renaming pp_cxx_trait_expression.
	(cxx_pretty_printer::simple_type_specifier) <case TRAIT_TYPE>:
	New.
	(cxx_pretty_printer::type_id): Replace UNDERLYING_TYPE with
	TRAIT_TYPE.
	(pp_cxx_trait_expression): Rename to ...
	(pp_cxx_trait): ... this.  Handle TRAIT_TYPE as well.  Correct
	pretty printing of the trailing arguments.
	* cxx-pretty-print.h (pp_cxx_trait_expression): Rename to ...
	(pp_cxx_trait_type): ... this.
	* error.cc (dump_type) <case UNDERLYING_TYPE>: Remove.
	<case TRAIT_TYPE>: New.
	(dump_type_prefix): Replace UNDERLYING_WITH with TRAIT_TYPE.
	(dump_type_suffix): Likewise.
	* mangle.cc (write_type) <case UNDERLYING_TYPE>: Remove.
	<case TRAIT_TYPE>: New.
	* module.cc (trees_out::type_node) <case UNDERLYING_TYPE>:
	Remove.
	<case TRAIT_TYPE>: New.
	(trees_in::tree_node): Likewise.
	* parser.cc (cp_parser_primary_expression): Adjust after
	renaming cp_parser_trait_expr.
	(cp_parser_trait_expr): Rename to ...
	(cp_parser_trait): ... this.  Call finish_trait_type for traits
	that yield a type.
	(cp_parser_simple_type_specifier): Adjust after renaming
	cp_parser_trait_expr.
	* pt.cc (for_each_template_parm_r) <case UNDERLYING_TYPE>:
	Remove.
	<case TRAIT_TYPE>: New.
	(tsubst): Likewise.
	(unify): Replace UNDERLYING_TYPE with TRAIT_TYPE.
	(dependent_type_p_r): Likewise.
	* semantics.cc (finish_underlying_type): Don't return
	UNDERLYING_TYPE anymore when processing_template_decl.
	(finish_trait_type): Define.
	* tree.cc (strip_typedefs) <case UNDERLYING_TYPE>: Remove.
	<case TRAIT_TYPE>: New.
	(cp_walk_subtrees): Likewise.
	* typeck.cc (structural_comptypes): Likewise.

2022-09-29  Nathan Sidwell  <nathan@acm.org>

	PR c++/100616
	* module.cc (enum tree_tag): Add tt_nttp_var.
	(trees_out::decl_node): Handle NTTP objects.
	(trees_in::tree_node): Handle tt_nttp_var.
	(depset::hash::add_binding_entry): Skip NTTP objects.

2022-09-28  Eugene Rozenfeld  <erozen@microsoft.com>

	* module.cc (write_location): Write discriminator.
	(read_location): Read discriminator.

2022-09-28  Nathan Sidwell  <nathan@acm.org>

	* cp-tree.h (DECL_NTTP_OBJECT_P): New.
	(template_parm_object_p): Delete.
	(build_template_parm_object): Declare.
	* cxx-pretty-print.cc (pp_cx_template_argument_list): Use DECL_NTTP_OBJECT_P.
	* error.cc (dump_simple_decl): Likewise.
	* mangle.cc (write_template_arg): Likewise.
	* pt.cc (template_parm_object_p): Delete.
	(create_template_parm_object): Separated out checking from ...
	(get_template_parm_object): ... this, new external entry point.

2022-09-27  Marek Polacek  <polacek@redhat.com>

	PR c++/101165
	PR c++/106882
	* call.cc (reference_binding): Check clk_implicit_rval in C++20 only.
	* cp-tree.h (unparenthesized_id_or_class_member_access_p): Declare.
	* pt.cc (unparenthesized_id_or_class_member_access_p): New function,
	broken out of...
	(do_auto_deduction): ...here.  Use it.  In C++23, maybe call
	treat_lvalue_as_rvalue_p.
	* tree.cc (xvalue_p): Check & clk_rvalueref, not == clk_rvalueref.
	* typeck.cc (check_return_expr): Allow implicit move for functions
	returning a reference as well, or when the return value type is not
	a scalar type.

2022-09-27  Marek Polacek  <polacek@redhat.com>

	* constraint.cc (diagnose_trait_expr): Say "nothrow" without quotes
	rather than in quotes.

2022-09-27  Jonathan Wakely  <jwakely@redhat.com>

	PR c++/107049
	* method.cc (is_convertible_helper): Use access check sentinel.

2022-09-27  Jakub Jelinek  <jakub@redhat.com>

	PR c++/106651
	* cp-tree.h (LAMBDA_EXPR_STATIC_P): Implement C++23
	P1169R4 - static operator().  Define.
	* parser.cc (CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR): Document
	that it also allows static.
	(cp_parser_lambda_declarator_opt): Handle static lambda specifier.
	(cp_parser_decl_specifier_seq): Allow RID_STATIC for
	CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR.
	* decl.cc (grok_op_properties): If operator() isn't a method,
	use a different error wording, if it is static member function,
	allow it (for C++20 and older with a pedwarn unless it is
	a lambda function or template instantiation).
	* call.cc (joust): Don't ICE if one candidate is static member
	function and the other is an indirect call.  If the parameter
	conversion on the other candidate is user defined conversion,
	ellipsis or bad conversion, make static member function candidate
	a winner for that parameter.
	* lambda.cc (maybe_add_lambda_conv_op): Handle static lambdas.
	* error.cc (dump_lambda_function): Print static for static lambdas.

2022-09-27  Jakub Jelinek  <jakub@redhat.com>

	* cp-tree.h (struct omp_begin_assumes_data): New type.
	(struct saved_scope): Add omp_begin_assumes member.
	* parser.cc: Include bitmap.h.
	(cp_parser_omp_assumption_clauses, cp_parser_omp_assume,
	cp_parser_omp_assumes, cp_parser_omp_begin): New functions.
	(cp_parser_omp_end_declare_target): Rename to ...
	(cp_parser_omp_end): ... this.  Handle also end assumes.
	(cp_parser_omp_construct): Handle PRAGMA_OMP_ASSUME.
	(cp_parser_pragma): Handle PRAGMA_OMP_ASSUME, PRAGMA_OMP_ASSUMES
	and PRAGMA_OMP_BEGIN.  Handle PRAGMA_OMP_END rather than
	PRAGMA_OMP_END_DECLARE_TARGET and call cp_parser_omp_end
	for it rather than cp_parser_omp_end_declare_target.
	* pt.cc (apply_late_template_attributes): Also temporarily clear
	omp_begin_assumes.
	* semantics.cc (finish_translation_unit): Also diagnose
	#pragma omp begin assumes without corresponding
	#pragma omp end assumes.

2022-09-27  Jakub Jelinek  <jakub@redhat.com>

	* parser.cc (cp_parser_lambda_declarator_opt): Don't diagnose
	conflicting specifiers here.
	(cp_storage_class_name): New variable.
	(cp_parser_decl_specifier_seq): When setting conflicting_specifiers_p
	for the first time, diagnose which exact specifiers conflict.
	(cp_parser_set_storage_class): Likewise.  Move storage_class
	computation earlier.
	* decl.cc (grokdeclarator): Don't diagnose conflicting specifiers
	here, just return error_mark_node.

2022-09-27  Jakub Jelinek  <jakub@redhat.com>

	PR c++/106652
	PR c++/85518
	* cp-tree.h (cp_compare_floating_point_conversion_ranks): Implement
	P1467R9 - Extended floating-point types and standard names except
	for std::bfloat16_t for now.  Declare.
	(extended_float_type_p): New inline function.
	* mangle.cc (write_builtin_type): Mangle float{16,32,64,128}_type_node
	as DF{16,32,64,128}_.  Mangle float{32,64,128}x_type_node as
	DF{32,64,128}x.  Remove FIXED_POINT_TYPE mangling that conflicts
	with that.
	* typeck2.cc (check_narrowing): If one of ftype or type is extended
	floating-point type, compare floating-point conversion ranks.
	* parser.cc (cp_keyword_starts_decl_specifier_p): Handle
	CASE_RID_FLOATN_NX.
	(cp_parser_simple_type_specifier): Likewise and diagnose missing
	_Float<N> or _Float<N>x support if not supported by target.
	* typeck.cc (cp_compare_floating_point_conversion_ranks): New function.
	(cp_common_type): If both types are REAL_TYPE and one or both are
	extended floating-point types, select common type based on comparison
	of floating-point conversion ranks and subranks.
	(cp_build_binary_op): Diagnose operation with floating point arguments
	with unordered conversion ranks.
	* call.cc (standard_conversion): For floating-point conversion, if
	either from or to are extended floating-point types, set conv->bad_p
	for implicit conversion from larger to smaller conversion rank or
	with unordered conversion ranks.
	(convert_like_internal): Emit a pedwarn on such conversions.
	(build_conditional_expr): Diagnose operation with floating point
	arguments with unordered conversion ranks.
	(convert_arg_to_ellipsis): Don't promote extended floating-point types
	narrower than double to double.
	(compare_ics): Implement P1467R9 [over.ics.rank]/4 changes.

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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