path: root/gcc/cp/ChangeLog

2024-05-21  Release Manager

	* GCC 13.3.0 released.

2024-05-14  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2024-04-11  Patrick Palka  <ppalka@redhat.com>

	PR c++/114303
	* constraint.cc (tsubst_requires_expr): Clear
	REQUIRES_EXPR_EXTRA_ARGS before calling build_extra_args.
	* pt.cc (tree_extra_args): Define.
	(extract_locals_r): Assert *_EXTRA_ARGS is empty.
	(tsubst_stmt) <case IF_STMT>: Clear IF_SCOPE on the new
	IF_STMT.  Call build_extra_args on the new IF_STMT instead
	of t which might already have IF_STMT_EXTRA_ARGS.

2024-05-13  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2024-04-24  Patrick Palka  <ppalka@redhat.com>

	PR c++/114709
	* constexpr.cc (cxx_fold_indirect_ref): Restrict object/offset
	canonicalization to RECORD_TYPE member accesses.

2024-05-09  Jakub Jelinek  <jakub@redhat.com>

	Backported from master:
	2024-04-25  Jakub Jelinek  <jakub@redhat.com>

	PR c++/111284
	* constexpr.cc (cxx_bind_parameters_in_call): For PARM_DECLs with
	TREE_ADDRESSABLE types use vc_glvalue rather than vc_prvalue for
	cxx_eval_constant_expression and if it doesn't have the same
	type as it should, cast the reference type to reference to type
	before convert_from_reference and instead of adjust_temp_type
	take address of the arg, cast to reference to type and then
	convert_from_reference.
	(cxx_eval_constant_expression) <case PARM_DECL>: For lval case
	on parameters with TREE_ADDRESSABLE types lookup result in
	ctx->globals if possible.  Otherwise if lookup in ctx->globals
	was successful for parameter with TREE_ADDRESSABLE type,
	recurse with vc_prvalue on the returned value.

2024-05-07  Andrew Pinski  <quic_apinski@quicinc.com>

	Backported from master:
	2024-05-07  Andrew Pinski  <quic_apinski@quicinc.com>

	PR c++/89224
	* constexpr.cc (cxx_eval_array_reference): Compare main variants
	for the vector/array types instead of the types directly.

2024-05-01  Patrick Palka  <ppalka@redhat.com>

	PR c++/113141
	* call.cc (reference_binding): Remove badness criteria sanity
	check in the recursive case.

2024-05-01  centurion  <centurion009@proton.me>

	Backported from master:
	2024-04-04  centurion  <centurion009@proton.me>

	PR c++/114377
	* pt.cc (find_template_parameter_info::found): Use TREE_TYPE for
	TEMPLATE_DECL instead of DECL_INITIAL.

2024-05-01  Jason Merrill  <jason@redhat.com>

	Backported from master:
	2024-04-02  Jason Merrill  <jason@redhat.com>

	PR c++/114561
	PR c++/114562
	* call.cc (convert_like_internal): Avoid adding qualification
	conversion in direct reference binding.

2024-05-01  Jason Merrill  <jason@redhat.com>

	Backported from master:
	2024-03-28  Jason Merrill  <jason@redhat.com>

	PR c++/100667
	* semantics.cc (same_type_ref_bind_p): New.
	(finish_trait_expr): Use it.

2024-04-21  Jakub Jelinek  <jakub@redhat.com>

	Backported from master:
	2024-04-12  Jakub Jelinek  <jakub@redhat.com>

	PR c++/114691
	* semantics.cc (simplify_loop_decl_cond): Use cp_build_unary_op with
	TRUTH_NOT_EXPR on ANNOTATE_EXPR argument (if any) rather than
	ANNOTATE_EXPR itself.

2024-04-21  Jakub Jelinek  <jakub@redhat.com>

	Backported from master:
	2024-04-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/114580
	* semantics.cc (finish_if_stmt_cond): Call
	maybe_warn_for_constant_evaluated with IF_STMT_CONSTEXPR_P (if_stmt)
	as the second argument, rather than true/false depending on if
	it is if constexpr with non-dependent constant expression with
	bool type.

2024-04-21  Jakub Jelinek  <jakub@redhat.com>

	Backported from master:
	2024-04-05  Jakub Jelinek  <jakub@redhat.com>

	PR c++/114572
	* cp-gimplify.cc (cxx_omp_clause_apply_fn): Call build_cplus_new
	on build_call_a result if it has class type.

2024-04-15  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2024-02-19  Patrick Palka  <ppalka@redhat.com>

	PR c++/113966
	* constraint.cc (tsubst_compound_requirement): Don't check
	the noexcept condition or the return-type-requirement when
	partially substituting.

2024-04-15  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2024-02-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/110006
	PR c++/112769
	* constraint.cc (subst_info::quiet): Accomodate non-diagnostic
	tsubst flags.
	(tsubst_valid_expression_requirement): Likewise.
	(tsubst_simple_requirement): Return a substituted _REQ node when
	processing_template_decl.
	(tsubst_type_requirement_1): Accomodate non-diagnostic tsubst
	flags.
	(tsubst_type_requirement): Return a substituted _REQ node when
	processing_template_decl.
	(tsubst_compound_requirement): Likewise.  Accomodate non-diagnostic
	tsubst flags.
	(tsubst_nested_requirement): Likewise.
	(tsubst_requires_expr): Don't defer partial substitution when
	processing_constraint_expression_p is true, in which case return
	a substituted REQUIRES_EXPR.
	* pt.cc (tsubst_expr) <case REQUIRES_EXPR>: Accomodate
	non-diagnostic tsubst flags.

2024-04-02  Marek Polacek  <polacek@redhat.com>

	Backported from master:
	2024-04-02  Marek Polacek  <polacek@redhat.com>

	PR c++/103825
	* typeck.cc (is_bitfield_expr_with_lowered_type): Handle
	CLEANUP_POINT_EXPR.

2024-02-16  Marek Polacek  <polacek@redhat.com>

	Backported from master:
	2024-02-12  Marek Polacek  <polacek@redhat.com>

	PR c++/113545
	* constexpr.cc (cxx_eval_switch_expr): If the condition doesn't reduce
	to an INTEGER_CST, consider it non-constant.

2024-02-13  Jason Merrill  <jason@redhat.com>

	Backported from master:
	2024-02-13  Jason Merrill  <jason@redhat.com>

	PR c++/113612
	* pt.cc (process_partial_specialization): Return early
	on redeclaration.

2024-02-09  Alexandre Oliva  <oliva@adacore.com>

	Backported from master:
	2023-11-29  Alexandre Oliva  <oliva@adacore.com>

	* decl.cc (maybe_prepare_return_this): Split out of...
	(maybe_return_this): ... this.
	* cp-tree.h (maybe_prepare_return_this): Declare.
	* class.cc (build_clone): Call it.

2024-02-09  Alexandre Oliva  <oliva@adacore.com>

	Backported from master:
	2023-11-29  Alexandre Oliva  <oliva@adacore.com>

	* contracts.cc (check_postcondition_result): Cope with
	cdtor_return_this.

2024-02-06  Jason Merrill  <jason@redhat.com>

	Backported from master:
	2024-02-06  Jason Merrill  <jason@redhat.com>

	PR c++/107291
	* method.cc (early_check_defaulted_comparison): Fail if not friend.

2024-02-05  Jason Merrill  <jason@redhat.com>

	Backported from master:
	2024-02-05  Jason Merrill  <jason@redhat.com>

	PR c++/111286
	* tree.cc (rvalue): Don't drop cv-quals from an array.

2024-02-02  Jason Merrill  <jason@redhat.com>

	Backported from master:
	2024-02-02  Jason Merrill  <jason@redhat.com>

	PR c++/110084
	* pt.cc (tsubst_function_decl): Only check a function defaulted
	outside the class if the class is complete.

2024-02-02  Jason Merrill  <jason@redhat.com>

	Backported from master:
	2024-02-02  Jason Merrill  <jason@redhat.com>

	PR c++/113638
	* cp-tree.h: Adjust comment.
	* pt.cc (instantiate_template): Set VAR_HAD_UNKNOWN_BOUND for
	variable template.

2024-02-02  Jason Merrill  <jason@redhat.com>

	Backported from master:
	2024-02-02  Jason Merrill  <jason@redhat.com>

	PR c++/112439
	* constexpr.cc (cxx_eval_store_expression): Check empty_base
	before marking a CONSTRUCTOR readonly.

2024-02-01  Marek Polacek  <polacek@redhat.com>

	Backported from master:
	2024-02-01  Marek Polacek  <polacek@redhat.com>

	PR c++/112437
	* typeck.cc (treat_lvalue_as_rvalue_p): Bail out on sk_namespace in
	the move on throw of parms loop.

2024-01-26  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2024-01-24  Patrick Palka  <ppalka@redhat.com>

	PR c++/113529
	* call.cc (add_operator_candidates): Propagate error_mark_node
	result after recursing to find rewritten candidates.

2024-01-24  Jason Merrill  <jason@redhat.com>

	PR c++/113347
	* semantics.cc (finalize_nrv_r): Handle null
	current_retval_sentinel.

2024-01-24  Jason Merrill  <jason@redhat.com>

	Backported from master:
	2023-12-20  Jason Merrill  <jason@redhat.com>

	PR c++/103185
	* typeck.cc (cp_build_array_ref): Handle swapped operands.

2024-01-24  Jason Merrill  <jason@redhat.com>

	Backported from master:
	2023-12-20  Jason Merrill  <jason@redhat.com>

	PR c++/113088
	PR c++/33799
	* except.cc (maybe_splice_retval_cleanup): Handle an empty block.

2024-01-18  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2024-01-17  Patrick Palka  <ppalka@redhat.com>

	PR c++/113242
	PR c++/99493
	* pt.cc (invalid_tparm_referent_p) <case ADDR_EXPR>: Suppress
	DECL_ARTIFICIAL rejection test for class NTTP objects.

2024-01-15  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2024-01-15  Patrick Palka  <ppalka@redhat.com>

	PR c++/104634
	* pt.cc (maybe_new_partial_specialization): Propagate TREE_PUBLIC
	to the newly created partial specialization.

2024-01-15  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2024-01-15  Patrick Palka  <ppalka@redhat.com>

	PR c++/109899
	* init.cc (build_vec_delete_1): Assume expr_noexcept_p returns
	false in a template context.

2023-12-20  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-04-25  Patrick Palka  <ppalka@redhat.com>

	PR c++/108975
	* pt.cc (value_dependent_expression_p) <case VAR_DECL>:
	Suppress conservative early exit for reference variables
	when DECL_HAS_VALUE_EXPR_P.

2023-12-15  Jakub Jelinek  <jakub@redhat.com>

	Backported from master:
	2023-12-08  Jakub Jelinek  <jakub@redhat.com>

	PR sanitizer/112727
	* cp-gimplify.cc (cp_fold): If SAVE_EXPR has been previously
	folded, unshare_expr what is returned.

2023-12-12  Marek Polacek  <polacek@redhat.com>

	Backported from master:
	2023-07-21  Marek Polacek  <polacek@redhat.com>

	PR c++/110106
	* constexpr.cc (potential_constant_expression_1): Try to complete the
	type when !processing_template_decl.

2023-12-12  Marek Polacek  <polacek@redhat.com>

	Backported from master:
	2023-11-16  Marek Polacek  <polacek@redhat.com>

	PR c++/112410
	* parser.cc (cp_parser_direct_declarator): Maybe call
	abort_fully_implicit_template if it turned out the parameter list was
	ill-formed.

2023-12-12  Marek Polacek  <polacek@redhat.com>

	Backported from master:
	2023-07-14  Marek Polacek  <polacek@redhat.com>
		    Jason Merrill  <jason@redhat.com>

	PR c++/109876
	* decl.cc (cp_finish_decl): Set TREE_CONSTANT when initializing
	an object of empty class type.
	* pt.cc (value_dependent_expression_p) <case VAR_DECL>: Treat a
	constexpr-declared non-constant variable as value-dependent.

2023-12-05  Jakub Jelinek  <jakub@redhat.com>

	Backported from master:
	2023-12-04  Jakub Jelinek  <jakub@redhat.com>

	PR c++/112795
	* parser.cc (cp_parser_pragma_unroll): Use fold_non_dependent_expr
	instead of maybe_constant_value.

2023-11-24  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-11-16  Patrick Palka  <ppalka@redhat.com>

	PR c++/111703
	PR c++/107939
	* constexpr.cc (potential_constant_expression_1) <case CALL_EXPR>:
	Fix FUNCTION_POINTER_TYPE_P test.

2023-11-24  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-11-15  Patrick Palka  <ppalka@redhat.com>

	PR c++/111703
	PR c++/112269
	* constexpr.cc (potential_constant_expression_1) <case VAR_DECL>:
	Only consider var_in_maybe_constexpr_fn if 'now' is false.
	<case INDIRECT_REF>: Likewise.

2023-11-23  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-11-22  Patrick Palka  <ppalka@redhat.com>

	PR c++/112633
	* pt.cc (tsubst_aggr_type): Handle empty TYPE_TEMPLATE_INFO
	in the entering_scope adjustment.

2023-11-17  Jason Merrill  <jason@redhat.com>

	PR c++/112301
	PR c++/102191
	PR c++/33799
	* except.cc (maybe_splice_retval_cleanup): Clear
	current_retval_sentinel when destroying retval.
	* semantics.cc (nrv_data): Add in_nrv_cleanup.
	(finalize_nrv): Set it.
	(finalize_nrv_r): Fix handling of throwing cleanups.

2023-11-17  Jason Merrill  <jason@redhat.com>

	* semantics.cc (finalize_nrv_r): [RETURN_EXPR]: Only replace the
	INIT_EXPR.

2023-11-17  Jason Merrill  <jason@redhat.com>

	PR c++/33799
	* except.cc (maybe_splice_retval_cleanup): Change
	recognition of function body and try scopes.
	* semantics.cc (do_poplevel): Call it after poplevel.
	(at_try_scope): New.
	* cp-tree.h (maybe_splice_retval_cleanup): Adjust.

2023-09-24  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-09-22  Patrick Palka  <ppalka@redhat.com>

	PR c++/111493
	* decl2.cc (grok_array_decl): Guard diagnostic and backward
	compatibility fallback code paths with tf_error.

2023-09-24  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-09-22  Patrick Palka  <ppalka@redhat.com>

	PR c++/111485
	* pt.cc (is_compatible_template_arg): New parameter 'args'.
	Add the outer template arguments 'args' to 'new_args'.
	(convert_template_argument): Pass 'args' to
	is_compatible_template_arg.

2023-09-24  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-09-19  Patrick Palka  <ppalka@redhat.com>

	PR c++/99631
	* semantics.cc (finish_decltype_type): For an NTTP object,
	return its type modulo cv-quals.

2023-09-22  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-09-20  Patrick Palka  <ppalka@redhat.com>

	PR c++/111471
	* cxx-pretty-print.cc (cxx_pretty_printer::expression)
	<case VAR_DECL>: Handle class NTTP objects by printing
	their type and value.
	<case VIEW_CONVERT_EXPR>: Strip const VIEW_CONVERT_EXPR
	wrappers for class NTTPs.
	(pp_cxx_template_argument_list): Don't handle class NTTP
	objects here.

2023-08-31  Jason Merrill  <jason@redhat.com>

	PR c++/109751
	* pt.cc (tsubst_friend_function): Don't check constraints.

2023-08-31  Jason Merrill  <jason@redhat.com>

	PR c++/92407
	* cp-tree.h (struct language_function): Add backward_goto.
	* decl.cc (check_goto): Set it.
	* typeck.cc (check_return_expr): Prevent NRV if set.

2023-08-16  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-08-11  Patrick Palka  <ppalka@redhat.com>

	PR c++/110927
	* parser.cc (cp_parser_type_requirement): Pass
	check_dependency_p=true instead of =false.

2023-08-11  Jason Merrill  <jason@redhat.com>

	PR c++/109678
	* constexpr.cc (cxx_fold_indirect_ref_1): Handle empty base first.

2023-08-11  Jason Merrill  <jason@redhat.com>

	PR c++/106310
	* parser.cc (cp_parser_template_name): Skip non-member
	lookup after the template keyword.
	(cp_parser_lookup_name): Pass down template_keyword_p.

2023-08-07  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-07-27  Patrick Palka  <ppalka@redhat.com>

	PR c++/110197
	* constexpr.cc (cxx_eval_array_reference): Allow synthesizing an
	empty subobject even if CONSTRUCTOR_NO_CLEARING is set.
	(cxx_eval_bare_aggregate): Set 'no_slot' to true more generally
	whenever new_ctx.ctor is set to NULL_TREE by init_subob_ctx,
	i.e. whenever initializing an subobject of empty type.
	(cxx_eval_vec_init_1): Define 'no_slot' as above and use it
	accordingly.

2023-08-07  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-07-26  Patrick Palka  <ppalka@redhat.com>

	PR c++/110566
	PR c++/108179
	* pt.cc (coerce_template_template_parms): Simplify by using
	DECL_INNERMOST_TEMPLATE_PARMS and removing redundant asserts.
	Always pass the parameters of the most general template to
	coerce_template_parms.

2023-07-27  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-07-26  Patrick Palka  <ppalka@redhat.com>

	PR c++/110809
	* pt.cc (unify) <case INTEGER_CST>: Generalize to handle
	REAL_CST as well.

2023-07-27  Release Manager

	* GCC 13.2.0 released.

2023-07-19  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-07-18  Patrick Palka  <ppalka@redhat.com>

	PR c++/110535
	* call.cc (add_conv_candidate): Check constraints.

2023-07-19  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-06-11  Patrick Palka  <ppalka@redhat.com>

	PR c++/110122
	* pt.cc (lookup_template_class): Extend shortcut for looking up the
	current class scope to consider outer class scopes too, and use
	current_nonlambda_class_type instead of current_class_type.  Only
	call coerce_template_parms when specializing a primary template.

2023-07-17  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-07-15  Patrick Palka  <ppalka@redhat.com>

	PR c++/110524
	* mangle.cc (write_expression): Handle TEMPLATE_ID_EXPR
	whose template is already an IDENTIFIER_NODE.

2023-07-01  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-06-29  Patrick Palka  <ppalka@redhat.com>

	PR c++/110468
	* init.cc (maybe_instantiate_nsdmi_init): Mask out all
	tsubst flags except for tf_warning_or_error.

2023-07-01  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-06-29  Patrick Palka  <ppalka@redhat.com>

	PR c++/110463
	* cp-gimplify.cc (cp_fold) <case CONSTRUCTOR>: Propagate
	CONSTRUCTOR_MUTABLE_POISON.

2023-06-23  Jason Merrill  <jason@redhat.com>

	* call.cc (maybe_init_list_as_array): Build a list.

2023-06-23  Jason Merrill  <jason@redhat.com>

	PR c++/110102
	* call.cc (maybe_init_list_as_array): Check that the element type is
	copyable.

2023-06-23  Jason Merrill  <jason@redhat.com>

	DR 2735
	PR c++/109247
	* call.cc (sfk_copy_or_move): New.
	(joust): Add tiebreaker for explicit conv and copy ctor.

2023-05-19  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-05-16  Patrick Palka  <ppalka@redhat.com>

	PR c++/109871
	* call.cc (add_list_candidates): Check for invalid designated
	initialization sooner and even for types that have a list
	constructor.

2023-05-17  Jakub Jelinek  <jakub@redhat.com>

	Backported from master:
	2023-05-17  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109868
	* init.cc (build_zero_init_1): Don't initialize zero-width bitfields.
	For unions only initialize the first FIELD_DECL.

2023-05-16  Marek Polacek  <polacek@redhat.com>

	Backported from master:
	2023-05-16  Marek Polacek  <polacek@redhat.com>

	PR c++/109774
	* typeck.cc (check_return_expr): In a template, return only after
	suppressing -Wdangling-reference.

2023-05-12  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-05-11  Patrick Palka  <ppalka@redhat.com>

	PR c++/109745
	* typeck2.cc (poison_mutable_constructors): Define.
	(store_init_value): Use it instead of setting
	CONSTRUCTOR_MUTABLE_POISON directly.

2023-05-12  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-05-11  Patrick Palka  <ppalka@redhat.com>
		    Jonathan Wakely  <jwakely@redhat.com>

	PR c++/83258
	PR c++/80488
	PR c++/97700
	* pt.cc (convert_nontype_argument_function): Remove linkage
	requirement for C++17 and later.
	(invalid_tparm_referent_p) <case ADDR_EXPR>: Restrict
	DECL_ARTIFICIAL rejection test to VAR_DECL.

2023-05-12  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-05-09  Patrick Palka  <ppalka@redhat.com>

	PR c++/109761
	* parser.cc (cp_parser_class_specifier): Don't pass a class
	context to noexcept_override_late_checks.
	(noexcept_override_late_checks): Remove 'type' parameter
	and use DECL_CONTEXT of 'fndecl' instead.

2023-05-12  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-05-07  Patrick Palka  <ppalka@redhat.com>

	PR c++/109651
	* pt.cc (coerce_template_args_for_ttp): Mention we can hit the
	current_template_parms fallback when level-lowering a bound ttp.
	(tsubst_template_decl): Add lambda_tparms parameter.  Prefer to
	use lambda_tparms instead of substituting DECL_TEMPLATE_PARMS.
	(tsubst_decl) <case TEMPLATE_DECL>: Pass NULL_TREE as lambda_tparms
	to tsubst_template_decl.
	(tsubst_lambda_expr): For a generic lambda, substitute
	DECL_TEMPLATE_PARMS and set current_template_parms to it
	before substituting the function type.  Pass the substituted
	DECL_TEMPLATE_PARMS as lambda_tparms to tsubst_template_decl.

2023-05-09  Jakub Jelinek  <jakub@redhat.com>

	Backported from master:
	2023-05-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109756
	* cp-gimplify.cc (process_stmt_assume_attribute): Diagnose pack
	expansion of assume attribute.

2023-05-03  Jason Merrill  <jason@redhat.com>

	Revert:
	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.

2023-05-03  Jakub Jelinek  <jakub@redhat.com>

	Backported from master:
	2023-05-03  Jakub Jelinek  <jakub@redhat.com>

	* cp-gimplify.cc (cp_fold_data): Move definition earlier.
	(cp_gimplify_expr): Pass address of ff_genericize | ff_mce_false
	constructed data rather than &pset to cp_walk_tree with cp_fold_r.

2023-05-02  Jason Merrill  <jason@redhat.com>

	Revert:
	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.

2023-05-02  Jason Merrill  <jason@redhat.com>

	PR c++/109666
	* name-lookup.cc (maybe_push_to_top_level)
	(maybe_pop_from_top_level): Split out...
	* pt.cc (instantiate_body): ...from here.
	* init.cc (maybe_instantiate_nsdmi_init): Use them.
	* name-lookup.h: Declare them..

2023-05-02  Jason Merrill  <jason@redhat.com>

	PR c++/108099
	* decl.cc (grokdeclarator): Don't clear typedef_decl after 'unsigned
	typedef' pedwarn.  Use c_common_signed_or_unsigned_type.  Also
	handle 'signed typedef'.

2023-04-26  Release Manager

	* GCC 13.1.0 released.

2023-04-19  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-04-19  Patrick Palka  <ppalka@redhat.com>

	PR c++/109556
	* pt.cc (try_class_unification): Don't ggc_free the copy of
	'targs'.

2023-04-17  Patrick Palka  <ppalka@redhat.com>

	Backported from master:
	2023-04-17  Patrick Palka  <ppalka@redhat.com>

	PR c++/109531
	* pt.cc (tsubst) <case BOUND_TEMPLATE_TEMPLATE_PARM>:
	In the level-lowering case just use lookup_template_class
	to rebuild the bound ttp.

2023-04-15  Jason Merrill  <jason@redhat.com>

	PR c++/109357
	* constexpr.cc (cxx_eval_constant_expression) [TARGET_EXPR]:
	Check for complex initializer.

2023-04-13  Patrick Palka  <ppalka@redhat.com>

	PR c++/109420
	* decl.cc (make_typename_type): Also ignore non-types during the
	lookup if tag_type corresponds to an elaborated-type-specifier.
	* pt.cc (tsubst) <case TYPENAME_TYPE>: Pass class_type or
	enum_type as tag_type to make_typename_type accordingly instead
	of always passing typename_type.

2023-04-13  Jason Merrill  <jason@redhat.com>

	PR c++/109277
	* semantics.cc (check_trait_type): Handle incomplete type directly.
	* typeck2.cc (cxx_incomplete_type_diagnostic): Remove assert.

2023-04-13  Jason Merrill  <jason@redhat.com>

	* typeck2.cc (cxx_incomplete_type_diagnostic): Return bool.
	* cp-tree.h (cxx_incomplete_type_diagnostic): Adjust.

2023-04-12  Jakub Jelinek  <jakub@redhat.com>

	* Make-lang.in (s-cp-module-version): New target.
	(cp/module.o): Depend on it.
	(MODULE_VERSION): Remove variable.
	(CFLAGS-cp/module.o): For -DMODULE_VERSION= argument just
	cat s-cp-module-version.

2023-04-09  Iain Sandoe  <iain@sandoe.co.uk>

	* coroutines.cc (coro_rewrite_function_body): Ensure that added
	bind expressions have scope blocks.

2023-04-04  Jason Merrill  <jason@redhat.com>

	PR c++/107484
	* decl2.cc (find_last_decl): Return early if DECL_USE_TEMPLATE.

2023-04-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/109300
	* decl.cc (cp_finish_decl): Diagnose ordinary auto deduction
	with no initializer, instead of asserting.

2023-04-01  Patrick Palka  <ppalka@redhat.com>

	PR c++/109160
	* cp-tree.h (do_auto_deduction): Add defaulted tmpl parameter.
	* pt.cc (convert_template_argument): Pass 'in_decl' as 'tmpl' to
	do_auto_deduction.
	(tsubst_decl) <case VAR_/TYPE_DECL>: Pass 'tmpl' instead of 't' as
	'in_decl' to coerce_template_parms.
	(unify) <case TEMPLATE_PARM_INDEX>: Pass TPARMS_PRIMARY_TEMPLATE
	as 'tmpl' to do_auto_deduction.
	(do_auto_deduction): Document default arguments.  Rename local
	variable 'tmpl' to 'ctmpl'.  Use 'tmpl' to obtain a full set of
	template arguments for satisfaction in the adc_unify case.

2023-04-01  Patrick Palka  <ppalka@redhat.com>

	PR c++/53164
	PR c++/105848
	* pt.cc (invalid_tparm_referent_p): Accept ADDR_EXPR of
	FUNCTION_DECL.
	(instantiate_class_template): Call mark_template_arguments_used.
	(tsubst_copy_and_build) <case CALL_EXPR>: Revert r13-995 change.
	(mark_template_arguments_used): Define.
	(instantiate_body): Call mark_template_arguments_used.

2023-04-01  Iain Sandoe  <iain@sandoe.co.uk>

	PR c++/101118
	* coroutines.cc (flatten_await_stmt): Use the current count of
	promoted temporaries to build a unique name for the frame entries.

2023-03-30  Jason Merrill  <jason@redhat.com>

	PR c++/105452
	* search.cc (type_context_for_name_lookup): New.
	(accessible_p): Handle anonymous union.
	* init.cc (maybe_instantiate_nsdmi_init): Use
	type_context_for_name_lookup.
	* parser.cc (cp_parser_class_specifier): Likewise.
	* cp-tree.h (type_context_for_name_lookup): Declare.

2023-03-30  Jason Merrill  <jason@redhat.com>

	PR c++/105221
	* pt.cc (unify) [FUNCTION_TYPE]: Handle function pointer
	conversions.

2023-03-30  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109319
	* decl2.cc (grok_array_decl): After emitting a pedwarn for
	-Wcomma-subscript, if processing_template_decl set orig_index_exp
	to compound expr from orig_index_exp_list.

2023-03-30  Jason Merrill  <jason@redhat.com>

	PR c++/107897
	PR c++/108887
	* decl2.cc (record_mangling): Use symtab_node::reset.

2023-03-30  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109278
	* call.cc (convert_like_internal): If pedwarn for extended float
	type conversions doesn't report anything, avoid calling
	maybe_inform_about_fndecl_for_bogus_argument_init.

2023-03-29  Jason Merrill  <jason@redhat.com>

	PR c++/109321
	PR c++/109320
	* pt.cc (alias_ctad_tweaks): Rewrite deduced args.
	(type_targs_deducible_from): Handle null pack deduction.

2023-03-28  David Malcolm  <dmalcolm@redhat.com>

	PR c/107002
	* parser.cc (cp_parser_binary_expression): Update for new param of
	check_for_xor_used_as_pow.

2023-03-28  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109309
	* contracts.cc: Include intl.h.
	(check_postcondition_result): Don't form diagnostics from two halves
	of an English message to allow translations.

2023-03-24  Patrick Palka  <ppalka@redhat.com>

	PR c++/106969
	* parser.cc (cp_parser_class_specifier): Clear current_class_ptr
	and current_class_ref sooner, before parsing a class definition.

2023-03-24  Jason Merrill  <jason@redhat.com>

	PR c++/105481
	* pt.cc (type_unification_real): Adjust for partial ordering.

2023-03-23  Jason Merrill  <jason@redhat.com>

	PR c++/105996
	* typeck.cc (build_ptrmemfunc): Drop 0-offset optimization
	and location wrappers.

2023-03-23  Marek Polacek  <polacek@redhat.com>

	PR c++/107532
	* call.cc (class_has_reference_member_p): New.
	(class_has_reference_member_p_r): New.
	(reference_like_class_p): Don't look for a specific constructor.
	Use a DFS walk with class_has_reference_member_p_r.

2023-03-23  Jason Merrill  <jason@redhat.com>

	PR c++/109241
	* pt.cc (find_parameter_packs_r): Handle null TREE_BINFO.

2023-03-22  Jason Merrill  <jason@redhat.com>

	PR c++/108390
	* pt.cc (unify): Use fold of build_nop instead of fold_convert.

2023-03-22  Jason Merrill  <jason@redhat.com>

	PR c++/108795
	* semantics.cc (finish_id_expression_1): Check scope before
	returning id_expression.

2023-03-22  Alex Coplan  <alex.coplan@arm.com>

	PR c++/109177
	* call.cc (build_over_call): Use make_temp_override to suppress
	both unavailable and deprecated warnings when calling
	build_addr_func.

2023-03-21  Jason Merrill  <jason@redhat.com>

	PR c++/106890
	* init.cc (maybe_instantiate_nsdmi_init): Don't leave
	current_function_decl set to a constructor.

2023-03-20  Marek Polacek  <polacek@redhat.com>

	PR c++/109159
	* call.cc (add_template_candidate_real): Add explicit decls to the
	set of candidates when the initializer is a braced-init-list.

2023-03-20  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109164
	* cp-tree.h (var_needs_tls_wrapper): Declare.
	* decl2.cc (var_needs_tls_wrapper): No longer static.
	* decl.cc (cp_finish_decl): Clear TREE_READONLY on TLS variables
	for which a TLS wrapper will be needed.

2023-03-17  Jason Merrill  <jason@redhat.com>

	PR c++/108975
	* lambda.cc (prune_lambda_captures): Don't bother in a template.

2023-03-17  Jason Merrill  <jason@redhat.com>

	PR c++/109172
	* except.cc (build_throw): Check dtor access.

2023-03-17  Jason Merrill  <jason@redhat.com>

	PR c++/69410
	* friend.cc (do_friend): Handle namespace as scope argument.
	* decl.cc (grokdeclarator): Pass down in_namespace.

2023-03-16  Jason Merrill  <jason@redhat.com>

	PR c++/105809
	* init.cc (get_nsdmi): Split out...
	(maybe_instantiate_nsdmi_init): ...this function.
	* cp-tree.h: Declare it.
	* pt.cc (tsubst_expr): Use it.

2023-03-16  Jason Merrill  <jason@redhat.com>

	PR c++/108242
	* pt.cc (tsubst_expr) [TAG_DEFN]: Handle partial instantiation.

2023-03-16  Jason Merrill  <jason@redhat.com>

	PR c++/101869
	* semantics.cc (finish_qualified_id_expr): Don't try to build a
	pointer-to-member if the scope is an enumeration.

2023-03-16  Patrick Palka  <ppalka@redhat.com>

	PR c++/109030
	* constexpr.cc (maybe_constant_init_1): For an unevaluated
	non-manifestly-constant operand, don't constant evaluate
	and instead call fold_to_constant as in maybe_constant_value.

2023-03-16  Patrick Palka  <ppalka@redhat.com>

	PR c++/100288
	* constraint.cc (satisfaction_cache::get): Relax overly strict
	checking assert in the constraint recursion case.

2023-03-16  Jason Merrill  <jason@redhat.com>

	PR c++/105406
	* coroutines.cc (build_co_await): Handle lvalue 'o'.

2023-03-15  Jason Merrill  <jason@redhat.com>

	PR c++/103871
	PR c++/98056
	* typeck.cc (cp_build_modify_expr): Allow array initialization of
	DECL_ARTIFICIAL variable.

2023-03-15  Marek Polacek  <polacek@redhat.com>

	PR c++/107280
	* constexpr.cc (cxx_eval_store_expression): Strip location wrappers.

2023-03-15  Jason Merrill  <jason@redhat.com>

	PR c++/58538
	* semantics.cc (check_template_template_default_arg): Check
	maybe_get_template_decl_from_type_decl.

2023-03-15  Jason Merrill  <jason@redhat.com>

	PR c++/108179
	PR c++/104107
	PR c++/95036
	* pt.cc (coerce_template_template_parms): Use args from
	DECL_CONTEXT (arg_tmpl) instead of outer_args.

2023-03-15  Jason Merrill  <jason@redhat.com>

	PR c++/108179
	* pt.cc	(coerce_template_template_parms): Take the arg and parm
	templates directly.
	(coerce_template_template_parm): Adjust.
	(template_template_parm_bindings_ok_p): Adjust.
	(convert_template_argument): Adjust.

2023-03-14  Patrick Palka  <ppalka@redhat.com>

	PR c++/96830
	* pt.cc (push_inline_template_parms_recursive): Set
	TEMPLATE_PARMS_CONSTRAINTS.
	(push_template_decl): For an out-of-line declaration, verify
	constraints for each enclosing template scope match those of the
	original template declaratation.

2023-03-14  Patrick Palka  <ppalka@redhat.com>

	PR c++/96830
	* pt.cc (redeclare_class_template): Add missing "of" in
	constraint mismatch diagnostic.
	(tsubst_friend_class): For an already declared class template,
	substitute and pass the friend declaration's constraints to
	redeclare_class_template instead of passing the existing
	template's constraints.

2023-03-14  Jason Merrill  <jason@redhat.com>

	PR c++/108468
	* pt.cc (unify_pack_expansion): Check that TPARMS_PRIMARY_TEMPLATE
	is non-null.

2023-03-14  Jason Merrill  <jason@redhat.com>

	PR c++/107310
	* cp-gimplify.cc (genericize_if_stmt): Restore folding
	of constant conditions.

2023-03-14  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109096
	* tree.cc (record_has_unique_obj_representations): Ignore unnamed
	bitfields.

2023-03-13  Jason Merrill  <jason@redhat.com>

	PR c++/107128
	* parser.cc (cp_parser_set_decl_spec_type): Use
	redefined_builtin_type for extended_float_type_p.

2023-03-13  Marek Polacek  <polacek@redhat.com>

	PR c++/107532
	* call.cc (reference_like_class_p): Check for std::span.

2023-03-10  Jakub Jelinek  <jakub@redhat.com>

	PR c++/107558
	* decl.cc (cp_finish_decl): Don't clear TREE_READONLY on
	automatic non-aggregate variables just because of
	-fmerge-all-constants.

2023-03-10  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109039
	* class.cc (end_of_class): For bit-fields, instead of computing
	offset as sum of byte_position (field) and DECL_SIZE_UNIT (field),
	compute it as sum of bit_position (field) and DECL_SIZE (field)
	divided by BITS_PER_UNIT rounded up.

2023-03-10  Jason Merrill  <jason@redhat.com>

	PR c++/108972
	* lambda.cc (compare_lambda_template_head): Check more
	for error_mark_node.

2023-03-10  Jason Merrill  <jason@redhat.com>

	PR c++/108566
	* mangle.cc (anon_aggr_naming_decl): New.
	(write_unqualified_name): Use it.

2023-03-10  Jakub Jelinek  <jakub@redhat.com>

	PR c/108079
	* decl.cc (poplevel): Suppress OPT_Wunused_variable warning
	after diagnosing it.

2023-03-10  Jason Merrill  <jason@redhat.com>

	PR c++/108099
	* decl.cc (grokdeclarator): Handle non-typedef typedef_decl.

2023-03-10  Jason Merrill  <jason@redhat.com>

	PR c++/108542
	* class.cc (instantiate_type): Strip location wrapper.

2023-03-09  Jason Merrill  <jason@redhat.com>

	PR c++/108773
	* init.cc (find_allocator_temps_r): New.
	(combine_allocator_temps): Replace find_allocator_temp.
	(build_vec_init): Adjust.

2023-03-09  Jason Merrill  <jason@redhat.com>

	DR 2664
	PR c++/102529
	* pt.cc (alias_ctad_tweaks): Continue after deduction failure.

2023-03-09  Jason Merrill  <jason@redhat.com>
	    Michael Spertus  <mike@spertus.com>

	PR c++/105841
	* pt.cc	(corresponding_template_parameter_list): Split out...
	(corresponding_template_parameter): ...from here.
	(find_template_parameters): Factor out...
	(find_template_parameter_info::find_in): ...this function.
	(find_template_parameter_info::find_in_recursive): New.
	(find_template_parameter_info::found): New.
	(alias_ctad_tweaks): Only add parms used in the deduced args.

2023-03-09  Jason Merrill  <jason@redhat.com>

	* cp-trait.def (IS_DEDUCIBLE): Add space to name.

2023-03-09  Jason Merrill  <jason@redhat.com>

	PR c++/105841
	* cp-trait.def (IS_DEDUCIBLE): New.
	* cxx-pretty-print.cc (pp_cxx_trait): Handle non-type.
	* parser.cc (cp_parser_trait): Likewise.
	* tree.cc (cp_tree_equal): Likewise.
	* pt.cc (tsubst_copy_and_build): Likewise.
	(type_targs_deducible_from): New.
	(alias_ctad_tweaks): Use it.
	* semantics.cc (trait_expr_value): Handle CPTK_IS_DEDUCIBLE.
	(finish_trait_expr): Likewise.
	* constraint.cc (diagnose_trait_expr): Likewise.
	* cp-tree.h (type_targs_deducible_from): Declare.

2023-03-07  Jason Merrill  <jason@redhat.com>

	PR c++/108526
	PR c++/106651
	* pt.cc (tsubst_function_decl): Don't replace the closure
	parameter if DECL_STATIC_FUNCTION_P.

2023-03-07  Marek Polacek  <polacek@redhat.com>

	PR c++/107532
	* call.cc (reference_like_class_p): New.
	(do_warn_dangling_reference): Add new bool parameter.  See through
	reference_like_class_p.

2023-03-07  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109042
	* rtti.cc (emit_support_tinfo_1): Don't assert that last
	unemitted_tinfo_decls element is tinfo, instead pop from it only in
	that case.
	* decl2.cc (c_parse_final_cleanups): Don't call emit_tinfo_decl
	for unemitted_tinfO_decls which have already non-NULL DECL_INITIAL.

2023-03-07  Marek Polacek  <polacek@redhat.com>

	PR c++/109030
	* constexpr.cc (cxx_eval_call_expression): Relax assert.

2023-03-07  Marek Polacek  <polacek@redhat.com>

	PR c++/107939
	* constexpr.cc (potential_constant_expression_1) <case CALL_EXPR>: Pass
	'any' when recursing on a VAR_DECL and not a pointer to function.

2023-03-04  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108702
	* constexpr.cc: Include toplev.h.
	(cxx_eval_constant_expression) <case DECL_EXPR>: When seeing a local
	static initialized by constant expression outside of a constexpr
	function which has been deferred by make_rtl_for_nonlocal_decl,
	call rest_of_decl_compilation on it.

2023-03-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/108998
	* pt.cc (el_data::skipped_trees): New data member.
	(extract_locals_r): Push to skipped_trees any unevaluated
	contexts that we skipped over.
	(extract_local_specs): For the second walk, start from each
	tree in skipped_trees.

2023-03-03  Alexandre Oliva  <oliva@adacore.com>

	* typeck.cc (cp_build_binary_op): Suppress redundant warning
	for pfn null test in pmfn test with vbit-in-delta.

2023-03-02  Jakub Jelinek  <jakub@redhat.com>

	PR target/108883
	* cp-tree.h (enum cp_tree_index): Remove CPTI_FALLBACK_DFLOAT*_TYPE
	enumerators.
	(fallback_dfloat32_type, fallback_dfloat64_type,
	fallback_dfloat128_type): Remove.
	* rtti.cc (emit_support_tinfo_1): If not emitted already, call
	emit_tinfo_decl and remove from unemitted_tinfo_decls right away.
	(emit_support_tinfos): Move &dfloat*_type_node from fundamentals array
	into new fundamentals_with_fallback array.  Call emit_support_tinfo_1
	on elements of that array too, with the difference that if
	the type is NULL, use a fallback REAL_TYPE for it temporarily.
	Drop the !targetm.decimal_float_supported_p () handling.  Call
	targetm.emit_support_tinfos at the end.
	* mangle.cc (write_builtin_type): Remove references to
	fallback_dfloat*_type.  Handle bfloat16_type_node mangling.

2023-03-02  Patrick Palka  <ppalka@redhat.com>

	PR c++/108243
	PR c++/97553
	* cp-gimplify.cc (cp_fully_fold): Add an internal overload that
	additionally takes and propagate an mce_value parameter, and
	define the existing public overload in terms of it.
	(cp_fully_fold_init): Pass mce_false to cp_fully_fold.

2023-03-02  Patrick Palka  <ppalka@redhat.com>

	PR c++/108243
	* constexpr.cc (maybe_constant_init_1): Override
	manifestly_const_eval to true if is_static.

2023-03-02  Jakub Jelinek  <jakub@redhat.com>

	PR debug/108716
	* cp-gimplify.cc (cp_genericize_r) <case USING_STMT>: Set
	DECL_SOURCE_LOCATION on IMPORTED_DECL to expression location
	of USING_STMT or input_location.

2023-03-02  Marek Polacek  <polacek@redhat.com>

	PR c++/106259
	* parser.cc (class_decl_loc_t::diag_mismatched_tags): If the first
	lookup of SPEC didn't find anything, try to look for
	most_general_template.

2023-03-02  Jakub Jelinek  <jakub@redhat.com>

	PR c++/105839
	* parser.cc (cp_convert_omp_range_for): Allow in assert
	decomp_first_name without DECL_HAS_VALUE_EXPR_P if it has
	error_mark_node type.
	(cp_finish_omp_range_for): Don't set DECL_HAS_VALUE_EXPR_P back
	on decls which have error_mark_node type.

2023-03-01  Marek Polacek  <polacek@redhat.com>

	PR c++/107574
	* constexpr.cc (cxx_eval_constant_expression): Emit an error when
	a PTRMEM_CST cannot be evaluated.

2023-03-01  Patrick Palka  <ppalka@redhat.com>

	* pt.cc (tsubst_scope): Define.
	(tsubst_decl) <case USING_DECL>: Call tsubst_scope instead of
	calling tsubst_scope with tf_qualifying_scope set.
	(tsubst_qualified_id): Call tsubst_scope instead of
	calling tsubst with tf_qualifying_scope set.
	(tsubst_copy): Immediately delegate to tsubst for all TYPE_P
	trees.  Remove tf_qualifying_scope manipulation.
	<case SCOPE_REF>: Call tsubst_scope instead of calling
	tsubst with tf_qualifying_scope set.

2023-03-01  Patrick Palka  <ppalka@redhat.com>
	    Jason Merrill  <jason@redhat.com>

	PR c++/108219
	PR c++/108218
	* constexpr.cc (fold_to_constant): Define.
	(maybe_constant_value): Move up early exit test for unevaluated
	operands.  Try reducing an unevaluated operand to a constant via
	fold_to_constant.
	(fold_non_dependent_expr_template): Add early exit test for
	CONSTANT_CLASS_P nodes.  Try reducing an unevaluated operand
	to a constant via fold_to_constant.
	* cp-tree.h (fold_to_constant): Declare.

2023-03-01  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108606
	* constexpr.cc (potential_constant_expression_1) <case DECL_EXPR>:
	Only recurse on DECL_INITIAL (tmp) if tmp is a VAR_DECL, otherwise
	just return true.

2023-02-28  Patrick Palka  <ppalka@redhat.com>

	PR c++/108848
	* pt.cc (finish_template_variable): Move dependence check
	to here from ...
	(lookup_and_finish_template_variable): ... here.
	* semantics.cc (finish_id_expression_1): Call
	finish_template_variable sooner, before (and regardless of) the
	type_dependent_expression_p test.

2023-02-28  Marek Polacek  <polacek@redhat.com>

	PR c++/108550
	* pt.cc (lookup_and_finish_template_variable): Clear tf_partial.

2023-02-20  Marek Polacek  <polacek@redhat.com>

	PR c++/101073
	* constexpr.cc (cxx_eval_call_expression): Replace shortcutting trivial
	constructor/op= with a checking assert.

2023-02-20  Marek Polacek  <polacek@redhat.com>

	PR c++/108829
	* pt.cc (prepend_one_capture): Set LAMBDA_CAPTURE_EXPLICIT_P.
	(tsubst_lambda_expr): Pass LAMBDA_CAPTURE_EXPLICIT_P to
	prepend_one_capture.

2023-02-18  Jason Merrill  <jason@redhat.com>

	DR 2518
	PR c++/52809
	PR c++/53638
	PR c++/87389
	PR c++/89741
	PR c++/92099
	PR c++/104041
	PR c++/104691
	* semantics.cc (finish_static_assert): Don't diagnose in
	template context.

2023-02-17  Patrick Palka  <ppalka@redhat.com>

	PR c++/108243
	PR c++/97553
	* cp-gimplify.cc (enum fold_flags): Define.
	(fold_flags_t): Declare.
	(cp_fold_data::genericize): Replace this data member with ...
	(cp_fold_data::fold_flags): ... this.
	(cp_fold_r): Adjust use of cp_fold_data and calls to cp_fold.
	(cp_fold_function): Likewise.
	(cp_fold_maybe_rvalue): Add an internal overload that
	additionally takes and propagates a fold_flags_t parameter, and
	define the existing public overload in terms of it.
	(cp_fold_rvalue): Likewise.
	(cp_fully_fold_init): Adjust use of cp_fold_data.
	(fold_cache): Replace with ...
	(fold_caches): ... this 2-element array of caches.
	(get_fold_cache): Define.
	(clear_fold_cache): Adjust.
	(cp_fold): Add fold_flags_t parameter.  Use get_fold_cache.
	Pass flags to calls to cp_fold, cp_fold_rvalue and
	cp_fold_maybe_rvalue.
	<case CALL_EXPR>: If ff_mce_false is set, fold
	__builtin_is_constant_evaluated to false and pass mce_false to
	maybe_constant_value.

2023-02-17  Patrick Palka  <ppalka@redhat.com>

	* constexpr.cc (constexpr_call::manifestly_const_eval): Give
	it type int instead of bool.
	(constexpr_ctx::manifestly_const_eval): Give it type mce_value
	instead of bool.
	(cxx_eval_builtin_function_call): Adjust after making
	manifestly_const_eval tri-state.
	(cxx_eval_call_expression): Likewise.
	(cxx_eval_binary_expression): Likewise.
	(cxx_eval_conditional_expression): Likewise.
	(cxx_eval_constant_expression): Likewise.
	(cxx_eval_outermost_constant_expr): Likewise.
	(cxx_constant_value): Likewise.
	(cxx_constant_dtor): Likewise.
	(maybe_constant_value): Give manifestly_const_eval parameter
	type mce_value instead of bool and adjust accordingly.
	(fold_non_dependent_expr_template): Adjust call
	to cxx_eval_outermost_constant_expr.
	(fold_non_dependent_expr): Likewise.
	(maybe_constant_init_1): Likewise.
	* constraint.cc (satisfy_atom): Adjust call to
	maybe_constant_value.
	* cp-tree.h (enum class mce_value): Define.
	(maybe_constant_value): Adjust manifestly_const_eval parameter
	type and default argument.
	* decl.cc (compute_array_index_type_loc): Adjust call to
	maybe_constant_value.
	* pt.cc (convert_nontype_argument): Likewise.

2023-02-16  Patrick Palka  <ppalka@redhat.com>

	PR c++/107773
	* cp-tree.h (enum tsubst_flags): New flag tf_qualifying_scope.
	* decl.cc (make_typename_type): Use lookup_member instead of
	lookup_field.  If tf_qualifying_scope is set, pass want_type=true
	instead of =false to lookup_member.  Generalize format specifier
	in diagnostic to handle both type and non-type bindings.
	* pt.cc (tsubst_aggr_type_1): Clear tf_qualifying_scope.  Tidy
	the function.
	(tsubst_decl) <case USING_DECL>: Set tf_qualifying_scope when
	substituting USING_DECL_SCOPE.
	(tsubst): Clear tf_qualifying_scope right away and remember if
	it was set.  Do the same for tf_tst_ok sooner.
	<case TYPENAME_TYPE>: Set tf_qualifying_scope when substituting
	TYPE_CONTEXT.  Pass tf_qualifying_scope to make_typename_type
	if it was set.
	(tsubst_qualified_id): Set tf_qualifying_scope when substituting
	the scope.
	(tsubst_copy): Clear tf_qualifying_scope and remember if it was
	set.
	<case SCOPE_REF>: Set tf_qualifying_scope when substituting the
	scope.
	<case *_TYPE>: Pass tf_qualifying_scope to tsubst if it was set.
	* search.cc (lookup_member): Document default argument.

2023-02-16  Patrick Palka  <ppalka@redhat.com>

	* cp-tree.h: Mechanically drop static from static inline
	functions via s/^static inline/inline/g.

2023-02-15  Marek Polacek  <polacek@redhat.com>

	PR c++/106675
	* call.cc (joust_maybe_elide_copy): Return false for ck_ambig.

2023-02-10  Marek Polacek  <polacek@redhat.com>

	PR c++/107079
	* call.cc (set_up_extended_ref_temp): Pass var to maybe_constant_init.

2023-02-09  Tobias Burnus  <tobias@codesourcery.com>

	* parser.cc (cp_parser_omp_allocate): Parse align
	clause and check for restrictions.

2023-02-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108698
	* mangle.cc (write_expression, write_template_arg): Handle
	EXCESS_PRECISION_EXPR with REAL_CST operand as
	write_template_arg_literal on fold_convert of the REAL_CST
	to EXCESS_PRECISION_EXPR type.

2023-02-06  Patrick Palka  <ppalka@redhat.com>

	PR c++/107461
	* cp-tree.h (call_expr_dependent_name): Declare.
	* pt.cc (iterative_hash_template_arg) <case CALL_EXPR>: Use
	call_expr_dependent_name instead of dependent_name.
	* tree.cc (call_expr_dependent_name): Define.
	(called_fns_equal): Adjust to take two CALL_EXPRs instead of
	CALL_EXPR_FNs thereof.  Use call_expr_dependent_name instead
	of dependent_name.
	(cp_tree_equal) <case CALL_EXPR>: Adjust call to called_fns_equal.

2023-02-03  Marek Polacek  <polacek@redhat.com>

	PR c++/108158
	* constexpr.cc (cxx_eval_array_reference): Don't replace
	new_ctx.object.

2023-02-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/107461
	* semantics.cc (finish_call_expr): Strip ADDR_EXPR from
	the selected callee during overload set pruning.

2023-02-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/96745
	* class.cc (check_methods): Diagnose an unviable OVERLOAD
	set for CLASSTYPE_DESTRUCTOR differently from an ambiguous one.
	Then prune the OVERLOAD to a single function.
	(check_bases_and_members): Handle CLASSTYPE_DESTRUCTOR being
	an OVERLOAD when calling deduce_noexcept_on_destructor.
	Document why it has to be called before check_methods.

2023-02-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/108579
	* class.cc (check_methods): Swap order of constraints_satisfied_p
	and copy/move_fn_p tests.

2023-02-01  Marek Polacek  <polacek@redhat.com>

	PR c++/107755
	* call.cc (build_new_op): Don't call warn_logical_operator when
	processing a template.

2023-02-01  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108607
	* constexpr.cc (cxx_eval_constant_expression): Handle OMP_*
	and OACC_* constructs as non-constant.
	(potential_constant_expression_1): Handle OMP_SCAN and OMP_SCOPE.

2023-02-01  Jason Merrill  <jason@redhat.com>

	* class.cc (note_name_declared_in_class): Change from permerror to
	-Wchanges-meaning pedwarn, forcing -pedantic-errors for most cases.

2023-01-31  Jason Merrill  <jason@redhat.com>

	PR c++/108559
	* cp-gimplify.cc (any_non_eliding_target_exprs): New.
	(cp_genericize_init): Check it.

2023-01-31  Marek Polacek  <polacek@redhat.com>

	PR c++/107593
	PR c++/108597
	* cp-tree.h (instantiation_dependent_expression_p): Don't
	declare here.

2023-01-26  Marek Polacek  <polacek@redhat.com>

	PR c++/105300
	* parser.cc: Remove unnecessary forward declarations.
	(cp_parser_string_literal): New wrapper.
	(cp_parser_string_literal_common): Renamed from
	cp_parser_string_literal.  Add a bool parameter.  Give an error when
	UDLs are not permitted.
	(cp_parser_userdef_string_literal): New wrapper.
	(finish_userdef_string_literal): Renamed from
	cp_parser_userdef_string_literal.
	(cp_parser_primary_expression): Call cp_parser_userdef_string_literal
	instead of cp_parser_string_literal.
	(cp_parser_linkage_specification): Move a variable declaration closer
	to its first use.
	(cp_parser_static_assert): Likewise.
	(cp_parser_operator): Call cp_parser_userdef_string_literal instead of
	cp_parser_string_literal.
	(cp_parser_asm_definition): Move a variable declaration closer to its
	first use.
	(cp_parser_asm_specification_opt): Move variable declarations closer to
	their first use.
	(cp_parser_asm_operand_list): Likewise.
	(cp_parser_asm_clobber_list): Likewise.

2023-01-26  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108503
	* parser.cc (cp_convert_omp_range_for): If cp_finish_decomp has been
	called in !processing_template_decl with processing_template_decl
	temporarily set, clear DECL_HAS_VALUE_EXPR_P on the vars temporarily.
	(cp_finish_omp_range_for): And set it back again here.

2023-01-25  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108525
	* mangle.cc (write_closure_type_name): Don't assume all
	lambda operator() fns are methods.

2023-01-24  Jason Merrill  <jason@redhat.com>

	PR c++/108504
	* parser.cc (cp_lexer_new_main): Pass C_LEX_STRING_NO_JOIN for first
	token, too.

2023-01-24  Jason Merrill  <jason@redhat.com>

	PR c++/108526
	* pt.cc (tsubst_function_decl): Handle static lambda.

2023-01-24  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108474
	* cp-gimplify.cc (cp_fold_r): Revert 2023-01-19 changes.

2023-01-24  Jason Merrill  <jason@redhat.com>

	PR c++/107303
	PR c++/107329
	* cp-gimplify.cc (cp_fold_r) [TARGET_EXPR]: In case of double
	TARGET_EXPR, keep the outer one instead of the inner one.
	(maybe_replace_decl): New.

2023-01-23  Jason Merrill  <jason@redhat.com>

	PR c++/107267
	* cp-gimplify.cc (cp_gimplify_init_expr): Allow unexpected elision
	of trivial types.

2023-01-23  Marek Polacek  <polacek@redhat.com>

	PR c++/107797
	* cvt.cc (ocp_convert): copy_warning when creating a new
	COMPOUND_EXPR.
	* init.cc (build_new_1): Suppress -Wunused-value on
	compiler-generated COMPOUND_EXPRs.

2023-01-23  Jason Merrill  <jason@redhat.com>

	PR c++/108195
	* call.cc (build_user_type_conversion_1): Check whether the
	iterators also find a list ctor.

2023-01-23  Jason Merrill  <jason@redhat.com>

	PR c++/108496
	* decl.cc (grokdeclarator): Check whether DECL_RESULT is already
	set.

2023-01-23  Jason Merrill  <jason@redhat.com>

	PR c++/53288
	DR 1299
	* call.cc (extend_ref_init_temps_1): Handle ptrmem expression.

2023-01-19  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108437
	* cp-tree.h (keep_unused_object_arg): Declare.
	* call.cc (keep_unused_object_arg): No longer static.
	* tree.cc (build_min_non_dep_op_overload): Handle ARRAY_REF
	with overload being static member function.

2023-01-19  Jakub Jelinek  <jakub@redhat.com>

	PR c++/53932
	* cp-gimplify.cc (cp_fold_r): During cp_fully_fold_init replace
	DECL_ANON_UNION_VAR_P VAR_DECLs with their corresponding
	DECL_VALUE_EXPR.

2023-01-16  Jakub Jelinek  <jakub@redhat.com>

	PR c++/105593
	* decl.cc (cp_finish_decl): Check warning_enabled_at
	at the DECL_SOURCE_LOCATION (decl) for OPT_Winit_self instead
	of warn_init_self.

2023-01-14  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108365
	* typeck.cc (cp_build_binary_op): Use may_shorten_divmod for integral
	division or modulo.

2023-01-13  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108285
	* cvt.cc (cp_convert_and_check): For EXCESS_PRECISION_EXPR
	use its operand except that for warning purposes use the original
	EXCESS_PRECISION_EXPR.
	* call.cc (convert_like_internal): Only look through
	EXCESS_PRECISION_EXPR when calling cp_convert, not when calling
	cp_convert_and_check.

2023-01-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/105838
	PR c++/108047
	PR c++/108266
	* call.cc (maybe_init_list_as_range): Always return NULL_TREE if
	processing_template_decl.

2023-01-05  Patrick Palka  <ppalka@redhat.com>

	PR c++/108275
	* parser.cc (cp_parser_class_head): Use dk_deferred instead of
	dk_no_check when parsing the class name.

2023-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108286
	* semantics.cc (finish_omp_target_clauses): Ignore clauses other than
	OMP_CLAUSE_MAP.

2023-01-04  Patrick Palka  <ppalka@redhat.com>

	PR c++/108282
	* decl2.cc (mark_single_function): Ignore mark_used failure
	only in a non-SFINAE context rather than in a SFINAE one.

2023-01-04  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108206
	* decl.cc (merge_default_template_args): Return false if either
	new_parm or old_parm are erroneous.


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