path: root/gcc/cp/ChangeLog

2024-02-29  Marek Polacek  <polacek@redhat.com>

	PR c++/113987
	* call.cc (conv_binds_to_reference_parm_p): New.
	* cp-tree.h (conv_binds_to_reference_parm_p): Declare.
	* init.cc (find_uninit_fields_r): Call it.

2024-02-29  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/111710
	* cp-tree.h (DECL_MODULE_KEYED_DECLS_P): Remove tree checking.
	(struct lang_decl_base): Update comments and fix whitespace.
	* module.cc (trees_out::lang_decl_bools): Always write
	module_keyed_decls_p flag...
	(trees_in::lang_decl_bools): ...and always read it.
	(trees_out::decl_value): Handle all kinds of keyed decls.
	(trees_in::decl_value): Likewise.
	(trees_in::tree_value): Deduplicate LAMBDA_EXPRs.
	(maybe_key_decl): Also support lambdas attached to fields,
	parameters, and types. Key lambdas attached to fields to their
	class.
	(trees_out::get_merge_kind): Likewise.
	(trees_out::key_mergeable): Likewise.
	(trees_in::key_mergeable): Support keyed decls in a TYPE_DECL
	container.
	* parser.cc (cp_parser_class_head): Start a lambda scope when
	parsing base classes.

2024-02-28  Jakub Jelinek  <jakub@redhat.com>
	    Patrick Palka  <ppalka@redhat.com>

	PR c++/113976
	* decl.cc (grokdeclarator): Don't call cp_apply_type_quals_to_decl
	on DECL_TEMPLATE_INSTANTIATED VAR_DECLs.

2024-02-28  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/113970
	PR c++/114013
	* decl.cc (make_rtl_for_nonlocal_decl): Don't defer inline
	variables.

2024-02-23  Jakub Jelinek  <jakub@redhat.com>

	PR c++/113083
	* cp-gimplify.cc (cp_fold): For targetm.cxx.cdtor_returns_this ()
	wrap r into a COMPOUND_EXPR and return folded CALL_EXPR_ARG (x, 0).

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.

2024-02-17  Marek Polacek  <polacek@redhat.com>

	PR c++/113158
	* search.cc (maybe_check_overriding_exception_spec): Defer checking
	when a noexcept couldn't be instantiated & evaluated to false/true.

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

	DR 1351
	* search.cc (maybe_check_overriding_exception_spec): Don't error about
	a looser exception specification if the overrider is deleted.

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

	PR c++/113789
	PR c++/113853
	* typeck.cc (treat_lvalue_as_rvalue_p): Update code to better
	reflect [expr.prim.id.unqual]#4.2.

2024-02-16  Jakub Jelinek  <jakub@redhat.com>

	PR c++/113929
	* parser.cc (cp_parser_parameter_declaration): Diagnose this specifier
	on template parameter declaration.

2024-02-16  Patrick Palka  <ppalka@redhat.com>

	* module.cc (trees_out::core_bools): Stream TREE_UNAVAILABLE.
	(trees_in::core_bools): Likewise.
	(trees_out::core_vals): Stream LAMBDA_EXPR_REGEN_INFO.
	(trees_in::core_vals): Likewise.

2024-02-14  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/113708
	* decl.cc (make_rtl_for_nonlocal_decl): Defer inline variables.
	* decl2.cc (import_export_decl): Support inline variables.

2024-02-14  Patrick Palka  <ppalka@redhat.com>

	PR c++/113908
	PR c++/113332
	* method.cc (synthesized_method_walk): Use maybe_push_to_top_level.

2024-02-14  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/99573
	* decl.cc (start_enum): Reorder check for redeclaring in module.
	Add missing auto_diagnostic_groups.

2024-02-13  Marek Polacek  <polacek@redhat.com>

	DR 1693
	PR c++/113760
	* parser.cc (cp_parser_member_declaration): Only pedwarn about an extra
	semicolon in C++98.

2024-02-13  Tobias Burnus  <tburnus@baylibre.com>

	PR middle-end/113904
	* parser.cc (cp_parser_omp_context_selector): Handle splitting of
	OMP_TRAIT_PROPERTY_EXPR into OMP_TRAIT_PROPERTY_{DEV_NUM,BOOL}_EXPR.

2024-02-13  Patrick Palka  <ppalka@redhat.com>

	* Make-lang.in (CFLAGS-cp/module.o): Add $(ZLIBINC).
	* module.cc: Include <zlib.h>.
	(bytes::calc_crc): Use crc32 from zlib.
	(bytes_out::set_crc): Use crc32_combine from zlib.

2024-02-13  Patrick Palka  <ppalka@redhat.com>

	* module.cc (depset::hash::add_specializations): Use
	STRIP_TEMPLATE consistently.
	(get_originating_module_decl): Handle class-scope CONST_DECL.

2024-02-13  Patrick Palka  <ppalka@redhat.com>

	* lambda.cc (lambda_function): Call get_class_binding_direct
	instead of lookup_member to sidestep lazy loading.
	* name-lookup.cc (check_local_shadow): Punt if we're in a
	function context that's not actual parsing.

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

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

2024-02-13  Marek Polacek  <polacek@redhat.com>

	PR c++/112436
	* except.cc (expand_start_catch_block): Pass tf_warning_or_error to
	is_admissible_throw_operand_or_catch_parameter.
	(build_throw): Pass complain to
	is_admissible_throw_operand_or_catch_parameter.
	(complete_ptr_ref_or_void_ptr_p): Add a tsubst_flags_t parameter.  Use
	it.  Return bool.  Call complete_type_or_maybe_complain instead of
	complete_type_or_else.
	(is_admissible_throw_operand_or_catch_parameter): Add a tsubst_flags_t
	parameter.  Use it.  Guard error calls.

2024-02-13  Alex Coplan  <alex.coplan@arm.com>

	PR c++/113658
	* cp-objcp-common.cc (cp_feature_table): Remove entry for
	cxx_constexpr_string_builtins.

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.

2024-02-10  Marek Polacek  <polacek@redhat.com>

	DR 2237
	PR c++/107126
	PR c++/97202
	* parser.cc (cp_parser_unqualified_id): Downgrade the DR2237 error to
	a pedwarn.
	(cp_parser_constructor_declarator_p): Likewise.

2024-02-10  Jakub Jelinek  <jakub@redhat.com>

	* tree.cc (debug_binfo): Use HOST_WIDE_INT_PRINT_DEC instead of "%ld"
	and casts to long.
	* pt.cc (print_template_statistics): Use HOST_SIZE_T_PRINT_DEC
	and casts to fmt_size_t instead of "%ld" and casts to long.
	* class.cc (dump_class_hierarchy_1): Use HOST_WIDE_INT_PRINT_UNSIGNED
	instead of "%lu" and casts to unsigned long.  For TYPE_ALIGN, use
	%u instead of %lu and drop casts to unsigned long.
	* parser.cc (cp_lexer_peek_nth_token): Use HOST_SIZE_T_PRINT_DEC
	and casts to fmt_size_t instead of "%ld" and casts to long.

2024-02-09  Marek Polacek  <polacek@redhat.com>

	PR c++/113834
	* semantics.cc (finish_type_pack_element): Perform range checking
	before tree_to_shwi.

2024-02-09  Marek Polacek  <polacek@redhat.com>

	PR c++/98388
	* coroutines.cc (coro_rewrite_function_body): Pass tf_warning_or_error
	to build_throw.
	(morph_fn_to_coro): Likewise.
	* cp-tree.h (build_throw): Adjust.
	* except.cc (expand_end_catch_block): Pass tf_warning_or_error to
	build_throw.
	(build_throw): Add a tsubst_flags_t parameter.  Use it.  Remove
	redundant variable.  Guard an inform call.
	* parser.cc (cp_parser_throw_expression): Pass tf_warning_or_error
	to build_throw.
	* pt.cc (tsubst_expr) <case THROW_EXPR>: Pass complain to build_throw.

2024-02-09  Patrick Palka  <ppalka@redhat.com>

	PR c++/112580
	* module.cc (trees_in::read_class_def): When streaming in
	an anonymous union field of an as-base class, don't overwrite
	ANON_AGGR_TYPE_FIELD.

2024-02-08  Patrick Palka  <ppalka@redhat.com>

	PR c++/113649
	* pt.cc (do_class_deduction): Add outer_targs parameter.
	Substitute outer arguments into the CTAD template.
	(do_auto_deduction): Pass outer_targs to do_class_deduction.

2024-02-08  Jason Merrill  <jason@redhat.com>

	* pt.cc (create_template_parm_object): Pass TARGET_EXPR to
	cxx_constant_value.

2024-02-06  Jakub Jelinek  <jakub@redhat.com>

	PR c++/113788
	* parser.cc (CP_PARSER_FLAGS_PARAMETER): New enumerator.
	(cp_parser_decl_specifier_seq): Parse RID_THIS only if
	CP_PARSER_FLAGS_PARAMETER is set in flags.
	(cp_parser_parameter_declaration): Or in CP_PARSER_FLAGS_PARAMETER
	when calling cp_parser_decl_specifier_seq.

2024-02-06  Marek Polacek  <polacek@redhat.com>

	* method.cc (early_check_defaulted_comparison): Add
	auto_diagnostic_group.

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>

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

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.

2024-02-02  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>

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

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.

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

	* call.cc (reference_like_class_p): Consider even non-templates for
	std::span-like classes.

2024-02-01  Patrick Palka  <ppalka@redhat.com>

	PR c++/112737
	* pt.cc (iterative_hash_template_arg) <case TEMPLATE_DECL>:
	Adjust hashing to match cp_tree_equal.
	(ctp_hasher::hash): Also hash CLASS_PLACEHOLDER_TEMPLATE.
	* tree.cc (cp_tree_equal) <case TEMPLATE_DECL>: Return true
	for ttp TEMPLATE_DECLs if their TEMPLATE_TEMPLATE_PARMs are
	equivalent.
	* typeck.cc (structural_comptypes) <case TEMPLATE_TYPE_PARM>:
	Use cp_tree_equal to compare CLASS_PLACEHOLDER_TEMPLATE.

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.

2024-01-30  Marek Polacek  <polacek@redhat.com>

	PR c++/110358
	PR c++/109640
	* call.cc (reference_like_class_p): Don't warn for std::span-like
	classes.

2024-01-30  Patrick Palka  <ppalka@redhat.com>

	PR c++/113640
	* call.cc (keep_unused_object_arg): Punt for an xobj member
	function.

2024-01-30  Patrick Palka  <ppalka@redhat.com>

	PR c++/113644
	* pt.cc (unify) <case INTEGER_CST>: Handle NULL_TREE type.

2024-01-30  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/107594
	* module.cc (get_module): Bail on empty name.

2024-01-29  Jason Merrill  <jason@redhat.com>

	PR c++/113544
	* pt.cc (instantiate_class_template): Don't partially instantiate.
	(tsubst_stmt): Likewise.

2024-01-26  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/113580
	* module.cc (struct post_process_data): Create.
	(trees_in::post_decls): Use.
	(trees_in::post_process): Return entire vector at once.
	Change overload to take post_process_data instead of tree.
	(trees_out::write_function_def): Write needed flags from
	DECL_STRUCT_FUNCTION.
	(trees_in::read_function_def): Read them and pass to
	post_process.
	(module_state::read_cluster): Write flags into cfun.

2024-01-26  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/112899
	* cp-tree.h (note_variable_template_instantiation): Rename to...
	(note_vague_linkage_variable): ...this.
	* decl2.cc (note_variable_template_instantiation): Rename to...
	(note_vague_linkage_variable): ...this.
	* pt.cc (instantiate_decl): Rename usage of above function.
	* module.cc (trees_in::read_var_def): Remember pending statics
	that we stream in.

2024-01-25  Jakub Jelinek  <jakub@redhat.com>

	PR c++/113599
	* typeck2.cc (build_m_component_ref): Use convert instead of
	cp_convert for pointer conversion.

2024-01-25  Jason Merrill  <jason@redhat.com>

	PR c++/113598
	* init.cc (build_vec_init): Don't use {} for PMF.

2024-01-25  Jason Merrill  <jason@redhat.com>

	PR c++/109227
	* coroutines.cc (build_co_await): Use cxx_maybe_build_cleanup.
	(build_actor_fn, process_conditional, maybe_promote_temps)
	(morph_fn_to_coro): Likewise.
	(expand_one_await_expression): Use build_cleanup.

2024-01-25  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/113405
	* module.cc (set_defining_module): Track partial specialisations
	for all declarations.

2024-01-25  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/100707
	* name-lookup.cc (add_imported_namespace): Don't mark namespaces
	as imported.

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.

2024-01-23  Marek Polacek  <polacek@redhat.com>

	PR c++/113256
	PR c++/111607
	PR c++/109640
	* call.cc (do_warn_dangling_reference): Don't warn if the temporary
	is of lambda type.

2024-01-23  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/112820
	PR c++/102607
	* module.cc (trees_out::lang_type_bools): Write interface_only
	and interface_unknown.
	(trees_in::lang_type_bools): Read the above flags.
	(trees_in::decl_value): Reset CLASSTYPE_INTERFACE_* except for
	extern templates.
	(trees_in::read_class_def): Remove buggy extern template
	handling.

2024-01-19  Jason Merrill  <jason@redhat.com>

	PR c++/113498
	* pt.cc (decl_template_info): New fn.
	(get_template_info): Use it.

2024-01-19  Jason Merrill  <jason@redhat.com>

	PR c++/112632
	PR c++/112594
	PR c++/111357
	PR c++/104594
	PR c++/67898
	* cp-tree.h (IMPLICIT_CONV_EXPR_FORCED): New.
	* pt.cc (expand_integer_pack): Remove 111357 workaround.
	(maybe_convert_nontype_argument): Add force parm.
	(convert_template_argument): Handle alias template args
	specially.
	(tsubst_expr): Don't ignore IMPLICIT_CONV_EXPR_NONTYPE_ARG.
	* error.cc (dump_expr) [CASE_CONVERT]: Handle null optype.

2024-01-18  Marek Polacek  <polacek@redhat.com>

	PR c++/113389
	* decl.cc (grokdeclarator) <case cdk_function>: Set TREE_PURPOSE to
	NULL_TREE when emitting an error.

2024-01-17  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/112588
	* module.cc (trees_in::read_function_def): Don't overwrite
	arguments.

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.

2024-01-16  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/113292
	* decl2.cc (get_tls_wrapper_fn): Set DECL_CONTEXT.
	(c_parse_final_cleanups): Suppress warning for no definition of
	TLS wrapper functions in header modules.
	* module.cc (trees_out::lang_decl_vals): Write wrapped variable
	for TLS wrapper functions.
	(trees_in::lang_decl_vals): Read it.
	(trees_out::decl_value): Write TLS model for thread-local vars.
	(trees_in::decl_value): Read it for new decls. Remember to emit
	definitions of TLS wrapper functions later.

2024-01-16  Nathaniel Shead  <nathanieloshead@gmail.com>

	* name-lookup.h (enum scope_kind): Add 'sk_count'.
	* name-lookup.cc (cp_binding_level_descriptor): Add missing
	scope kinds. Add assertion that the list is up to date. Fix
	handling of explicit_spec_p.

2024-01-16  Marek Polacek  <polacek@redhat.com>

	* decl.cc (grokdeclarator) <case cdk_function>: Tweak diagnostic
	messages.

2024-01-16  Marek Polacek  <polacek@redhat.com>

	PR c++/113340
	* decl.cc (grokdeclarator) <case cdk_function>: Clear
	is_xobj_member_function in case of an error.

2024-01-16  waffl3x  <waffl3x@protonmail.com>

	PR c++/113307
	* parser.cc (cp_parser_parameter_declaration): Reject packs
	on xobj params.

2024-01-15  Marek Polacek  <polacek@redhat.com>

	PR c++/110065
	* parser.cc (cp_parser_template_type_arg): Add auto checking.

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

	* parser.cc (cp_parser_check_access_in_redeclaration): Don't
	check access for a partial or explicit specialization.
	* pt.cc (maybe_new_partial_specialization): Don't set TREE_PRIVATE
	or TREE_PROTECTED on the newly created partial specialization.

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>

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

2024-01-13  Jakub Jelinek  <jakub@redhat.com>

	* mangle.cc (write_nested_name): Mangle explicit object
	member functions with H as per
	https://github.com/itanium-cxx-abi/cxx-abi/issues/148 non-proposal.

2024-01-12  Jason Merrill  <jason@redhat.com>

	PR c++/113038
	* name-lookup.cc (lookup_elaborated_type): Look for bindings
	in the global namespace in the ABI namespace.

2024-01-12  Jason Merrill  <jason@redhat.com>

	* call.cc (reversed_match): New.
	(enum class pmatch): New enum.
	(cand_parms_match): Add match_kind parm.
	(object_parms_correspond): Add fn parms.
	(joust): Adjust.
	* class.cc (xobj_iobj_parameters_correspond): Rename to...
	(iobj_parm_corresponds_to): ...this.  Take the other
	type instead of a second function.
	(object_parms_correspond): Adjust.
	* cp-tree.h (iobj_parm_corresponds_to): Declare.

2024-01-11  Jason Merrill  <jason@redhat.com>

	PR c++/113191
	* class.cc (xobj_iobj_parameters_correspond): Add context parm.
	(object_parms_correspond): Factor out of...
	(add_method): ...here.
	* method.cc (defaulted_late_check): Use it.
	* call.cc (class_of_implicit_object): New.
	(object_parms_correspond): Overload taking two candidates.
	(cand_parms_match): Use it.
	(joust): Check reversed before comparing constraints.
	* cp-tree.h (object_parms_correspond): Declare.

2024-01-10  Tamar Christina  <tamar.christina@arm.com>

	* parser.cc (cp_parser_pragma): Initialize to false.

2024-01-09  Jason Merrill  <jason@redhat.com>

	* semantics.cc (is_object_parameter): New.
	* cp-tree.h (is_object_parameter): Declare.
	* call.cc (maybe_warn_class_memaccess): Use it.
	* search.cc (field_access_p): Use it.
	(class_of_object_parm): New.
	(field_accessor_p): Adjust for explicit object parms.

2024-01-09  Jason Merrill  <jason@redhat.com>

	* call.cc (build_over_call): Refactor handle_arg lambda.
	* class.cc (xobj_iobj_parameters_correspond): Fix FIXME.
	* method.cc (defaulted_late_check): Adjust comments.

2024-01-09  waffl3x  <waffl3x@protonmail.com>

	PR c++/102609
	PR c++/102609
	C++23 P0847R7 (deducing this) - CWG2586.
	* decl.cc (copy_fn_p): Accept xobj copy assignment functions.
	(move_signature_fn_p): Accept xobj move assignment functions.
	* method.cc (do_build_copy_assign): Handle defaulted xobj member
	functions.
	(defaulted_late_check): Comment.
	(defaultable_fn_check): Comment.

2024-01-09  waffl3x  <waffl3x@protonmail.com>

	PR c++/102609
	PR c++/102609
	C++23 P0847R7 (deducing this) - xobj lambdas.
	* lambda.cc (build_capture_proxy): Don't fold direct object types.
	* parser.cc (cp_parser_lambda_declarator_opt): Handle xobj lambdas,
	diagnostics.  Comments also updated.
	* pt.cc (tsubst_function_decl): Handle xobj lambdas.  Check object
	type of xobj lambda call operator, diagnose incorrect types.
	(tsubst_lambda_expr): Update comment.
	* semantics.cc (finish_decltype_type): Also consider by-value object
	parameter qualifications.

2024-01-09  waffl3x  <waffl3x@protonmail.com>

	PR c++/102609
	PR c++/102609
	C++23 P0847R7 (deducing this) - diagnostics.
	* class.cc (resolve_address_of_overloaded_function): Diagnostics.
	* cp-tree.h (TFF_XOBJ_FUNC): Define.
	* decl.cc (grokfndecl): Diagnostics.
	(grokdeclarator): Diagnostics.
	* error.cc (dump_aggr_type): Pass TFF_XOBJ_FUNC.
	(dump_lambda_function): Formatting for xobj lambda.
	(dump_function_decl): Pass TFF_XOBJ_FUNC.
	(dump_parameters): Formatting for xobj member functions.
	(function_category): Formatting for xobj member functions.
	* parser.cc (cp_parser_decl_specifier_seq): Diagnostics.
	(cp_parser_parameter_declaration): Diagnostics.
	* search.cc (look_for_overrides_here): Make xobj member functions
	override.
	(look_for_overrides_r): Reject an overriding xobj member function
	and diagnose it.
	* semantics.cc (finish_this_expr): Diagnostics.
	* typeck.cc (cp_build_addr_expr_1): Diagnostics.

2024-01-09  waffl3x  <waffl3x@protonmail.com>

	PR c++/102609
	PR c++/102609
	C++23 P0847R7 (deducing this) - initial functionality.
	* class.cc (xobj_iobj_parameters_correspond): New function, checks
	for corresponding object parameters between xobj and iobj member
	functions.
	(add_method): Handle object parameters of xobj member functions, use
	xobj_iobj_parameters_correspond.
	* call.cc (build_over_call): Refactor, handle xobj member functions.
	(cand_parms_match): Handle object parameters of xobj and iobj member
	functions, use xobj_iobj_parameters_correspond.
	* cp-tree.h (enum cp_decl_spec): Add ds_this, add comments.
	* decl.cc (grokfndecl): Add xobj_func_p parameter.  For xobj member
	functions, Set xobj_flag, don't set static_function flag.
	(grokdeclarator): Handle xobj member functions, tell grokfndecl.
	(grok_op_properties): Don't error for xobj operators.
	* parser.cc (cp_parser_decl_specifier_seq): Handle this specifier.
	(cp_parser_parameter_declaration): Set default argument to
	"this_identifier" for xobj parameters.
	(set_and_check_decl_spec_loc): Add "this", add comments.
	* tree.cc (build_min_non_dep_op_overload): Handle xobj operators.
	* typeck.cc (cp_build_addr_expr_1): Handle address-of xobj member
	functions.

2024-01-09  waffl3x  <waffl3x@protonmail.com>
	    Jason Merrill  <jason@redhat.com>

	PR c++/102609
	* cp-tree.h (struct lang_decl_fn): New data member.
	(DECL_NONSTATIC_MEMBER_FUNCTION_P): Poison.
	(DECL_IOBJ_MEMBER_FUNCTION_P): Define.
	(DECL_FUNCTION_XOBJ_FLAG): Define.
	(DECL_XOBJ_MEMBER_FUNCTION_P): Define.
	(DECL_OBJECT_MEMBER_FUNCTION_P): Define.
	(DECL_FUNCTION_MEMBER_P): Don't use
	DECL_NONSTATIC_MEMBER_FUNCTION_P.
	(DECL_CONST_MEMFUNC_P): Likewise.
	(DECL_VOLATILE_MEMFUNC_P): Likewise.
	(DECL_NONSTATIC_MEMBER_P): Likewise.
	* module.cc (trees_out::lang_decl_bools): Handle xobj_flag.
	(trees_in::lang_decl_bools): Handle xobj_flag.
	* call.cc (build_this_conversion)
	(add_function_candidate)
	(add_template_candidate_real)
	(add_candidates)
	(maybe_warn_class_memaccess)
	(cand_parms_match)
	(joust)
	(do_warn_dangling_reference)
	* class.cc (finalize_literal_type_property)
	(finish_struct)
	(resolve_address_of_overloaded_function)
	* constexpr.cc (is_valid_constexpr_fn)
	(cxx_bind_parameters_in_call)
	* contracts.cc (build_contract_condition_function)
	* cp-objcp-common.cc (cp_decl_dwarf_attribute)
	* cxx-pretty-print.cc (cxx_pretty_printer::postfix_expression)
	(cxx_pretty_printer::declaration_specifiers)
	(cxx_pretty_printer::direct_declarator)
	* decl.cc (cp_finish_decl)
	(grok_special_member_properties)
	(start_preparsed_function)
	(record_key_method_defined)
	* decl2.cc (cp_handle_deprecated_or_unavailable)
	* init.cc (find_uninit_fields_r)
	(build_offset_ref)
	* lambda.cc (lambda_expr_this_capture)
	(maybe_generic_this_capture)
	(nonlambda_method_basetype)
	* mangle.cc (write_nested_name)
	* method.cc (early_check_defaulted_comparison)
	(skip_artificial_parms_for)
	(num_artificial_parms_for)
	* pt.cc (is_specialization_of_friend)
	(determine_specialization)
	(copy_default_args_to_explicit_spec)
	(check_explicit_specialization)
	(tsubst_contract_attribute)
	(check_non_deducible_conversions)
	(more_specialized_fn)
	(maybe_instantiate_noexcept)
	(register_parameter_specializations)
	(value_dependent_expression_p)
	* search.cc (shared_member_p)
	(lookup_member)
	(field_access_p)
	* semantics.cc (finish_omp_declare_simd_methods)
	* tree.cc (lvalue_kind)
	* typeck.cc (invalid_nonstatic_memfn_p): Don't use
	DECL_NONSTATIC_MEMBER_FUNCTION_P.

2024-01-09  Julian Brown  <julian@codesourcery.com>

	* constexpr.cc (potential_consant_expression_1): Handle
	OMP_ARRAY_SECTION.
	* cp-tree.h (grok_omp_array_section, build_omp_array_section): Add
	prototypes.
	* decl2.cc (grok_omp_array_section): New function.
	* error.cc (dump_expr): Handle OMP_ARRAY_SECTION.
	* parser.cc (cp_parser_new): Initialize parser->omp_array_section_p.
	(cp_parser_statement_expr): Disallow array sections.
	(cp_parser_postfix_open_square_expression): Support OMP_ARRAY_SECTION
	parsing.
	(cp_parser_parenthesized_expression_list, cp_parser_lambda_expression,
	cp_parser_braced_list): Disallow array sections.
	(cp_parser_omp_var_list_no_open): Remove ALLOW_DEREF parameter, add
	MAP_LVALUE in its place.  Support generalised lvalue parsing for
	OpenMP map, to and from clauses.  Use OMP_ARRAY_SECTION
	code instead of TREE_LIST to represent OpenMP array sections.
	(cp_parser_omp_var_list): Remove ALLOW_DEREF parameter, add MAP_LVALUE.
	Pass to cp_parser_omp_var_list_no_open.
	(cp_parser_oacc_data_clause): Update call to cp_parser_omp_var_list.
	(cp_parser_omp_clause_map): Add sk_omp scope around
	cp_parser_omp_var_list_no_open call.
	* parser.h (cp_parser): Add omp_array_section_p field.
	* pt.cc (tsubst, tsubst_copy, tsubst_omp_clause_decl,
	tsubst_copy_and_build): Add OMP_ARRAY_SECTION support.
	* semantics.cc (handle_omp_array_sections_1, handle_omp_array_sections,
	cp_oacc_check_attachments, finish_omp_clauses): Use OMP_ARRAY_SECTION
	instead of TREE_LIST where appropriate.  Handle more types of map
	expression.
	* typeck.cc (build_omp_array_section): New function.

2024-01-07  Nathaniel Shead  <nathanieloshead@gmail.com>

	* module.cc (trees_out::write_var_def): Only write initializers
	in header modules.

2024-01-07  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/109679
	* module.cc (depset::hash::add_binding_entity): Don't skip names
	in the GMF if they've been exported with a using declaration.

2024-01-07  Nathaniel Shead  <nathanieloshead@gmail.com>

	PR c++/110808
	* parser.cc (cp_parser_module_name): Rewrite to handle
	module-names and module-partitions independently.
	(cp_parser_module_partition): New function.
	(cp_parser_module_declaration): Parse module partitions
	explicitly. Don't change state if parsing module decl failed.
	(cp_parser_import_declaration): Handle different kinds of
	import-declarations locally.

2024-01-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/113064
	* call.cc (reference_binding): Still try a conversion via a
	temporary if a direct conversion was bad.

2024-01-03  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* parser.cc (cp_parser_omp_clause_name): Move handling of indirect
	clause to correspond to alphabetical order.


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