2022-10-19 Marek Polacek PR c++/85043 * typeck.cc (maybe_warn_about_useless_cast): Don't warn when a glvalue is cast to a non-reference type. 2022-10-18 Patrick Palka PR c++/105045 * module.cc (trees_out::tpl_parms_fini): Don't assume default template arguments must be trailing. (trees_in::tpl_parms_fini): Likewise. 2022-10-18 Jakub Jelinek PR c++/106654 * cp-tree.h (build_assume_call): Declare. * parser.cc (cp_parser_omp_assumption_clauses): Use build_assume_call. * cp-gimplify.cc (build_assume_call): New function. (process_stmt_assume_attribute): Use build_assume_call. * pt.cc (tsubst_copy_and_build): Likewise. 2022-10-17 Patrick Palka PR c++/101449 * module.cc (trees_out::write_function_def): Stream the parms and result of the constexpr_fundef entry. (trees_in::read_function_def): Likewise. 2022-10-14 Patrick Palka PR c++/106304 * constexpr.cc (cxx_dynamic_cast_fn_p): Check for abi_node instead of global_namespace. * rtti.cc (build_dynamic_cast_1): Set DECL_CONTEXT and DECL_SOURCE_LOCATION when building dynamic_cast_node. Push it into the namespace. 2022-10-14 Jakub Jelinek * cp-tree.h (extended_float_type_p): Return true for bfloat16_type_node. * typeck.cc (cp_compare_floating_point_conversion_ranks): Set extended{1,2} if mv{1,2} is bfloat16_type_node. Adjust comment. 2022-10-14 Jakub Jelinek PR c/82071 PR c/87390 PR c++/107097 * cp-tree.h (cp_ep_convert_and_check): Remove. * cvt.cc (cp_ep_convert_and_check): Remove. * call.cc (build_conditional_expr): Use excess precision for ?: with one arm floating and another integral. Don't convert first to semantic result type from integral types. (convert_like_internal): Don't call cp_ep_convert_and_check, instead just strip EXCESS_PRECISION_EXPR before calling cp_convert_and_check or cp_convert. * typeck.cc (cp_build_binary_op): Set may_need_excess_precision for comparisons or SPACESHIP_EXPR with at least one operand integral. Don't compute semantic_result_type if build_type is non-NULL. Call cp_convert_and_check instead of cp_ep_convert_and_check. 2022-10-14 Jakub Jelinek PR middle-end/323 PR c++/107097 * parser.cc (cp_parser_primary_expression): Handle EXCESS_PRECISION_EXPR with REAL_CST operand the same as REAL_CST. * cvt.cc (cp_ep_convert_and_check): New function. * call.cc (build_conditional_expr): Add excess precision support. When type_after_usual_arithmetic_conversions returns error_mark_node, use gcc_checking_assert that it is because of uncomparable floating point ranks instead of checking all those conditions and make it work also with complex types. (convert_like_internal): Likewise. Add NESTED_P argument, pass true to recursive calls to convert_like. (convert_like): Add NESTED_P argument, pass it through to convert_like_internal. For other overload pass false to it. (convert_like_with_context): Pass false to NESTED_P. (convert_arg_to_ellipsis): Add excess precision support. (magic_varargs_p): For __builtin_is{finite,inf,inf_sign,nan,normal} and __builtin_fpclassify return 2 instead of 1, document what it means. (build_over_call): Don't handle former magic 2 which is no longer used, instead for magic 1 remove EXCESS_PRECISION_EXPR. (perform_direct_initialization_if_possible): Pass false to NESTED_P convert_like argument. * constexpr.cc (cxx_eval_constant_expression): Handle EXCESS_PRECISION_EXPR. (potential_constant_expression_1): Likewise. * pt.cc (tsubst_copy, tsubst_copy_and_build): Likewise. * cp-tree.h (cp_ep_convert_and_check): Declare. * cp-gimplify.cc (cp_fold): Handle EXCESS_PRECISION_EXPR. * typeck.cc (cp_common_type): For COMPLEX_TYPEs, return error_mark_node if recursive call returned it. (convert_arguments): For magic 1 remove EXCESS_PRECISION_EXPR. (cp_build_binary_op): Add excess precision support. When cp_common_type returns error_mark_node, use gcc_checking_assert that it is because of uncomparable floating point ranks instead of checking all those conditions and make it work also with complex types. (cp_build_unary_op): Likewise. (cp_build_compound_expr): Likewise. (build_static_cast_1): Remove EXCESS_PRECISION_EXPR. 2022-10-13 Jason Merrill * cp-tree.h: Fix whitespace. * parser.h: Fix whitespace. * decl.cc: Fix whitespace. * parser.cc: Fix whitespace. * pt.cc: Fix whitespace. 2022-10-13 Martin Liska * vtable-class-hierarchy.cc (vtv_generate_init_routine): Emit an artificial variable that would be put into .preinit_array section. 2022-10-13 Marek Polacek PR c++/106925 * except.cc (maybe_splice_retval_cleanup): Check current_function_decl. Make the bool const. 2022-10-12 Marek Polacek * 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 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 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 PR c++/99377 * module.cc (lazy_load_binding): Clear processing_template_decl. (lazy_load_pendings): Likewise. 2022-10-10 Nathan Sidwell * mangle.cc (write_prefix): Add VAR_DECL & FIELD_DECL to substitution table under abi=18. Note possible mismatch. 2022-10-10 Marek Polacek 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 * 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 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 * 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 * module.cc (trees_out::mark_class_def): Guard against DECL_BIT_FIELD_REPRESENTATIVE not being a decl. 2022-10-07 Jason Merrill * init.cc (expand_default_init): Also push the INIT_EXPR inside a CLEANUP_POINT_EXPR. 2022-10-07 Patrick Palka 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 * 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 * 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 * 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 * lex.cc (init_reswords): Handle D_EXT11. 2022-10-06 Patrick Palka * 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 * parser.cc (cp_parser_omp_assumption_clauses): Emit IFN_ASSUME call for holds clause on assume construct. 2022-10-06 Jakub Jelinek 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 * tree.cc (lvalue_kind) [VIEW_CONVERT_EXPR]: Change prvalue to xvalue. 2022-10-04 Jason Merrill PR c++/107154 * cp-gimplify.cc (cp_genericize_init_expr): Use iloc_sentinel. (cp_genericize_target_expr): Likewise. 2022-10-04 Patrick Palka PR c++/107136 * Make-lang.in (CP_PLUGIN_HEADERS): Add cp-trait.def. 2022-10-04 Jakub Jelinek * 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 * 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 * 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 * 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 * init.cc (build_vec_init): Clear from_array for CONSTRUCTOR initializer. 2022-10-01 Jason Merrill * cp-gimplify.cc (cp_genericize_init): Also convert the result of split_nonconstant_init to void. 2022-09-30 Patrick Palka * 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 * 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 PR c++/102576 * pt.cc (listify): Use lookup_qualified_name instead of get_namespace_binding. 2022-09-29 Jason Merrill * class.cc (check_methods): Call constraints_satisfied_p. 2022-09-29 Jason Merrill * constexpr.cc (potential_constant_expression_1): Look into DECL_INITIAL. Use location wrappers. 2022-09-29 Jason Merrill 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 * call.cc (build_conditional_expr): Set TARGET_EXPR_NO_ELIDE on the outer TARGET_EXPR. 2022-09-29 Patrick Palka * 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 * 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) : 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) : Remove. : New. (dump_type_prefix): Replace UNDERLYING_WITH with TRAIT_TYPE. (dump_type_suffix): Likewise. * mangle.cc (write_type) : Remove. : New. * module.cc (trees_out::type_node) : Remove. : 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) : Remove. : 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) : Remove. : New. (cp_walk_subtrees): Likewise. * typeck.cc (structural_comptypes): Likewise. 2022-09-29 Nathan Sidwell 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 * module.cc (write_location): Write discriminator. (read_location): Read discriminator. 2022-09-28 Nathan Sidwell * 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 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 * constraint.cc (diagnose_trait_expr): Say "nothrow" without quotes rather than in quotes. 2022-09-27 Jonathan Wakely PR c++/107049 * method.cc (is_convertible_helper): Use access check sentinel. 2022-09-27 Jakub Jelinek 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 * 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 * 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 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 or _Floatx 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 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 PR c++/106784 * method.cc (is_convertible_helper): New. (is_convertible): Use it. (is_nothrow_convertible): Likewise. 2022-09-26 Patrick Palka 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 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 PR c++/106983 * typeck2.cc (split_nonconstant_init_1): Check TYPE_P. 2022-09-22 Patrick Palka 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 * 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 PR c++/106761 * module.cc (trees_out::type_node) : Stream PACK_EXPANSION_EXTRA_ARGS. (trees_in::tree_node) : Likewise. 2022-09-17 Patrick Palka * 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 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 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 * decl.cc (cxx_init_decl_processing): Inline last build_void_list_node call. (build_void_list_node): Remove. 2022-09-14 Julian Brown * semantics.cc (finish_omp_clauses): Likewise. 2022-09-13 Patrick Palka * 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 * 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 * 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 * 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 PR c++/101906 * pt.cc (tsubst_template_args): Set cp_evaluated here. (tsubst_aggr_type): Not here. 2022-09-12 Jason Merrill PR c++/106893 PR c++/90451 * decl.cc (cp_finish_decl): Call mark_single_function. 2022-09-12 Jason Merrill 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 PR c++/106567 * lambda.cc (type_deducible_expression_p): Check array_of_unknown_bound_p. 2022-09-12 Jonathan Wakely 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 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 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 PR c++/106793 * decl.cc (grokdeclarator): Improve placeholder diagnostics. * parser.cc (cp_parser_type_id_1): Add fixit. 2022-09-07 Arsen Arsenović 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 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 * decl.cc (grok_op_properties): Return sooner for C++23 op[]. 2022-09-06 Jakub Jelinek * 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 * pt.cc (tsubst_expr) : If OMP_BODY was NULL, keep it NULL after instantiation too. 2022-09-03 Jakub Jelinek * 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 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 * cp-tree.h (maybe_strip_ref_conversion): Remove. 2022-08-30 Ulrich Drepper * 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 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 PR c++/106712 * decl.cc (grokdeclarator): Reverse the order of arguments to attr_chainon. 2022-08-26 Marek Polacek PR c++/81159 * typeck.cc (maybe_warn_self_move): New. (cp_build_modify_expr): Call maybe_warn_self_move. 2022-08-25 Marek Polacek * 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 * call.cc (unsafe_return_slot_p): Return 2 for *this in a constructor. 2022-08-23 Marek Polacek * typeck.cc (maybe_warn_pessimizing_move): Don't warn about redundant std::move when the expression was wrapped in { }. 2022-08-17 Marek Polacek 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 PR c++/89780 * pt.cc (tsubst_copy_and_build) : 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 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 Chung-Lin Tang 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 PR c++/106423 * parser.cc (cp_lexer_saving_tokens): Add comment regarding diagnostic requirements. 2022-08-16 Jakub Jelinek * 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) : Adjust warning wording, leave out simple. 2022-08-15 Marek Polacek 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 PR middle-end/102633 * decl.cc (cp_finish_decl): Call suppress_warning. 2022-08-07 Jakub Jelinek PR c++/88174 * constexpr.cc (cxx_eval_store_expression): Handle REALPART_EXPR and IMAGPART_EXPR. Change ctors from releasing_vec to auto_vec, adjust all uses. For !preeval, update ctors vector. 2022-07-31 Lewis Hyatt PR c++/66290 * parser.cc (cp_lexer_new_main): Rename global done_lexing to override_libcpp_locations. 2022-07-31 Jason Merrill PR c++/106369 * constexpr.cc (reduced_constant_expression_p): Return false if a CONSTRUCTOR initializes an empty field. 2022-07-29 Jakub Jelinek 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 PR c++/106311 * pt.cc (redeclare_class_template): Check DECL_P before accessing DECL_SOURCE_LOCATION. 2022-07-26 Jason Merrill PR c++/106230 * semantics.cc (finish_for_stmt): Check stmts_are_full_exprs_p. 2022-07-25 Jason Merrill PR c++/87729 * class.cc (warn_hidden): Remove shortcut. 2022-07-22 Patrick Palka 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 PR other/106370 * init.cc (sort_mem_initializers): Remove continue as last stmt in a loop. 2022-07-21 Jason Merrill PR c++/106361 * decl.cc (move_fn_p): Remove assert. 2022-07-21 Jason Merrill DR 2084 PR c++/98423 * method.cc (walk_field_subobs): Fix DMI in union case. 2022-07-19 Patrick Palka 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 * 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 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 PR c++/105912 * pt.cc (tsubst_copy_and_build) : Guard against NULL_TREE extract_call_expr result. 2022-07-13 Patrick Palka 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 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) : Revert r13-1045-gcb7fd1ea85feea change for avoiding substitution into DECL_TI_ARGS, but still avoid coercion in this case. 2022-07-07 Jason Merrill PR c++/87729 * class.cc (warn_hidden): Ignore [cd]tors. 2022-07-06 Lewis Hyatt 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 PR c++/106179 PR c++/106024 * parser.cc (cp_parser_lookup_name): Remove :: requirement for using unqualified lookup result. 2022-07-05 Nathan Sidwell * 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 Chung-Lin Tang Thomas Schwinge * 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 * 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 PR c++/105550 * constexpr.cc (cxx_eval_conditional_expression): Strip TARGET_EXPRs. 2022-07-01 Tobias Burnus * 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 PR c++/106111 * parser.cc (cp_lexer_get_preprocessor_token): Also warn about RID_ALIGNOF, RID_ALIGNAS, RID_THREAD. 2022-07-01 Jason Merrill PR c++/105779 * call.cc (resolve_args): Use complain. 2022-07-01 Jason Merrill * parser.cc (missing_template_diag): Split out... (cp_parser_id_expression): ...from here. 2022-07-01 Jason Merrill 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 * 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 * 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 PR c++/106102 * mapper-client.cc: Include via "system.h". * mapper-resolver.cc: Ditto. * module.cc: Ditto. 2022-06-27 David Malcolm * 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 PR c++/87729 PR c++/20423 * class.cc (warn_hidden): Handle -Woverloaded-virtual=1. 2022-06-24 Alexandre Oliva * g++spec.cc (lang_specific_driver): Implement -nostdlib++. 2022-06-23 Jason Merrill PR c++/105925 * call.cc (build_aggr_conv): Don't depend on CONSTRUCTOR_IS_DESIGNATED_INIT. 2022-06-23 Jason Merrill 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 PR c++/105931 * expr.cc (fold_for_warn): Don't fold when in an unevaluated context. 2022-06-23 Patrick Palka 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 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 PR c++/105885 * pt.cc (tsubst_copy_and_build): Also suppress -Waddress for comparison of dependent operands. 2022-06-23 Nathan Sidwell * 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 * pt.cc (type_unification_real): An auto tparm can't be affected by other deductions. 2022-06-23 Jason Merrill PR c++/105964 * pt.cc (type_dependent_expression_p): Look through BASELINK. 2022-06-22 Jason Merrill PR c++/105908 * name-lookup.cc (outer_binding): Strip BASELINK. 2022-06-22 Nathan Sidwell * module.cc (struct duplicate_hash): Remove. (duplicate_hash_map): Adjust. 2022-06-22 Jason Merrill 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 * 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 PR c++/106001 * typeck.cc (build_x_shufflevector): Use fold_non_dependent_expr instead of maybe_constant_value. 2022-06-16 Nathan Sidwell * 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 * decl2.cc (struct priority_map_traits): Remove unused param. 2022-06-15 Nathan Sidwell * module.cc (module_state::write_readme): Use less confusing importable unit names. 2022-06-14 Nathan Sidwell * 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 * 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 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) : 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 * 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 * 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) : Don't substitute TYPE_CONTEXT or pass it to lookup_template_class. (tsubst_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 * 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 * 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 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 * 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 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 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 * 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 * 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 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 PR c++/53164 PR c++/105848 * pt.cc (tsubst_copy_and_build) : Look through an ADDR_EXPR callee when calling mark_used. 2022-06-04 Marek Polacek 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 PR c++/105756 * typeck.cc (cp_build_binary_op): Don't fold operands when c_inhibit_evaluation_warnings. 2022-06-03 Jason Merrill PR c++/105761 * decl.cc (duplicate_decls): Don't copy DECL_TEMPLATE_INFO from a hidden friend. 2022-06-03 Patrick Palka 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 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 PR c++/105797 * pt.cc (for_each_template_parm_r) : Don't walk DECL_CONTEXT. : Likewise. Walk TREE_TYPE. : Simplify. (any_template_parm_r) : Don't walk TREE_TYPE. 2022-06-02 Marek Polacek * constexpr.cc (potential_constant_expression_1): Treat {,VEC_}NEW_EXPR and {,VEC_}DELETE_EXPRas potentially constant in C++20. 2022-06-02 Marek Polacek PR c++/105803 * pt.cc (value_dependent_expression_p): Handle {,VEC_}NEW_EXPR in the switch. 2022-06-02 David Malcolm * cp-lang.cc (LANG_HOOKS_GET_SARIF_SOURCE_LANGUAGE): Redefine. (cp_get_sarif_source_language): New. 2022-06-02 Jason Merrill 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 PR c++/105795 * constexpr.cc (cxx_eval_bare_aggregate): Always call init_subob_ctx. 2022-06-01 Jason Merrill PR c++/105734 * parser.cc (cp_parser_postfix_dot_deref_expression): Use typeof if the expression has auto type. 2022-06-01 Jason Merrill PR c++/105779 * call.cc (resolve_args): Call mark_single_function here. * pt.cc (unify_one_argument): Not here. 2022-06-01 Nathan Sidwell * 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 * 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 * 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 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 * parser.cc: Use auto_timevar instead of timevar_push/pop. Remove wrapper functions. * pt.cc: Likewise. 2022-05-31 Patrick Palka * 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 * Make-lang.in (c++.tags): Just look at *.cc. 2022-05-31 Patrick Palka * 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 * decl.cc (grokvardecl): Use current_template_constraints. (grokdeclarator): Likewise. (xref_tag): Likewise. * semantics.cc (finish_template_template_parm): Likewise. 2022-05-31 Jakub Jelinek * parser.cc (OMP_SCOPE_CLAUSE_MASK): Add firstprivate and allocate clauses. 2022-05-30 Marek Polacek 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 * parser.cc (handle_omp_declare_target_clause): If OMP_CLAUSE_LINK was seen first, use "%" or "%" depending on OMP_CLAUSE_ENTER_TO of the current clause, otherwise use "% or %" wording. 2022-05-28 Jason Merrill 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 PR c++/105725 * parser.cc (class_decl_loc_t::add): Check CLASS_TYPE_P. 2022-05-27 Jakub Jelinek * 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 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 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 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 PR c++/105655 * pt.cc (build_template_decl): Add assert. (tsubst_function_decl): Don't return a template. 2022-05-25 Jason Merrill 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 * constexpr.cc (cxx_eval_call_expression): Check for heap vars in the result. 2022-05-25 Jason Merrill * constexpr.cc (maybe_constant_init_1): Only pass false for strict when initializing a variable of static duration. 2022-05-25 Marek Polacek 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 * 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 * 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 PR c++/105622 * constexpr.cc (cxx_eval_store_expression): Adjust assert. Use initialized_type. 2022-05-24 Patrick Palka * 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) : 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 PR c/105378 * parser.cc (OMP_TASKWAIT_CLAUSE_MASK): Add nowait clause. 2022-05-20 David Malcolm * cxx-pretty-print.h: Replace uses of "FINAL" and "OVERRIDE" with "final" and "override". * error.cc: Likewise. 2022-05-18 Marek Polacek PR c++/105634 * call.cc (maybe_warn_class_memaccess): Avoid % by zero. 2022-05-17 Jason Merrill PR c++/102307 * decl.cc (check_initializer): Use build_cplus_new in case of constexpr failure. 2022-05-17 Jakub Jelinek * 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 * 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 * 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 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 * parser.cc (cp_parser_template_name): Look through injected-class-name. 2022-05-15 Jason Merrill PR c++/105589 PR c++/105191 PR c++/92385 * init.cc (build_value_init): Handle class in template. 2022-05-13 Nathan Sidwell * mangle.cc (maybe_write_module): Check external linkage. 2022-05-13 Richard Biener * constexpr.cc: Remove gimple-fold.h include. 2022-05-12 Patrick Palka * 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 * parser.cc (cp_parser_linkage_specification): Implement global module attachment semantics. 2022-05-12 Jakub Jelinek * 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 * 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) : Likewise. (dependent_template_arg_p): Likewise. * tree.cc (cp_walk_subtrees) : Likewise. 2022-05-11 Jason Merrill 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 PR bootstrap/105567 * typeck.cc (check_return_expr): Don't mess with ctor return value while parsing a template. 2022-05-11 Nathan Sidwell * 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 PR target/105355 * lang-specs.h: Use Separate syntax. 2022-05-10 Patrick Palka * 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 * 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 * 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 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 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 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 * 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 * 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 PR c++/101833 PR c++/47634 * tree.cc (maybe_adjust_arg_pos_for_attribute): New. 2022-05-06 Jason Merrill * 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 PR c++/105245 PR c++/100111 * constexpr.cc (cxx_eval_store_expression): Reorganize empty base handling. 2022-05-05 Marek Polacek 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 * module.cc (trees_in::core_vals): Remove separate allocation for REAL_CST. 2022-05-04 Jason Merrill 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 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 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 * decl.cc (reshape_init): Shortcut already-reshaped init. (reshape_init_class): Assert not getting one here. 2022-05-04 Jason Merrill * error.cc (cp_print_error_function): Use %qD. (function_category): Use %qD. 2022-05-04 Marek Polacek 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 * 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 * lambda.cc: Include decl.h. (maybe_add_lambda_conv_op): Temporarily override deprecated_state to UNAVAILABLE_DEPRECATED_SUPPRESS. 2022-05-03 Patrick Palka 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 * pt.cc (tsubst_copy_and_build) [TEMPLATE_ID_EXPR]: Copy location. (do_auto_deduction): Use expr location. 2022-05-02 Jason Merrill * 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 * cp-tree.h (uses_template_parms): Adjust declaration. * pt.cc (uses_template_parms): Return bool. Use a RAII sentinel. 2022-05-02 Richard Biener * constexpr.cc (fold_simple_1): Use CASE_CONVERT. * cp-gimplify.cc (cp_fold): Likewise. * pt.cc (tsubst_copy): Likewise. 2022-04-29 Jason Merrill 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 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 PR c++/82980 * lambda.cc (type_deducible_expression_p): Allow more types. 2022-04-29 Jason Merrill * decl.cc (cp_finish_decl): Only consider auto for vars. 2022-04-29 Marek Polacek 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 PR c++/80351 * decl.cc (cp_finish_decl): Check completeness of deduced type. 2022-04-29 Jason Merrill PR c++/102987 * error.cc (dump_decl) [USING_DECL]: Respect flags. 2022-04-29 Jason Merrill * error.cc (dump_decl): Check TFF_UNQUALIFIED_NAME. 2022-04-29 Jakub Jelinek 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 PR c++/105426 * coroutines.cc (register_local_var_uses): Allow promotion of unnamed temporaries to coroutine frame copies. 2022-04-29 Jason Merrill * semantics.cc (check_trait_type): Don't check completeness of element type of array of unknown bound. 2022-04-29 Jason Merrill 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 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 PR c++/105425 * pt.cc (unify) : Treat DEPENDENT_OPERATOR_TYPE like an empty type. 2022-04-28 Iain Sandoe PR c++/104051 * coroutines.cc (coro_diagnose_throwing_final_aw_expr): Handle non-target expression inputs. 2022-04-28 Iain Sandoe 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 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 Iain Sandoe 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 PR c++/90107 * parser.cc (cp_parser_class_specifier_1): Accept :: after a class definition. 2022-04-27 Jason Merrill * tree.cc (strip_typedefs): Add default argument comments. 2022-04-27 Marek Polacek PR c++/105398 * pt.cc (uses_template_parms): Return false for any NAMESPACE_DECL. 2022-04-26 Jason Merrill PR c++/102629 * pt.cc (gen_elem_of_pack_expansion_instantiation): Clear TEMPLATE_TYPE_PARAMETER_PACK on auto. 2022-04-26 Patrick Palka PR c++/105386 * semantics.cc (finish_decltype_type): Pass tf_decltype to instantiate_non_dependent_expr_sfinae. 2022-04-26 Jason Merrill PR c++/104624 * pt.cc (check_for_bare_parameter_packs): Check for lambda function parameter pack. 2022-04-26 Patrick Palka 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) : When substituting into the NTTP type a second time, use the original type not the substituted type. 2022-04-25 Marek Polacek PR c++/105353 * typeck.cc (build_x_shufflevector): Use instantiation_dependent_expression_p except for the first two arguments. 2022-04-21 Marek Polacek * constexpr.cc (cxx_eval_logical_expression): Remove unused parameter. (cxx_eval_constant_expression) , : Adjust calls to cxx_eval_logical_expression. 2022-04-21 Marek Polacek PR c++/105321 * constexpr.cc (cxx_eval_logical_expression): Always pass false for lval to cxx_eval_constant_expression. 2022-04-20 Ed Catmur PR c++/104996 * call.cc (compare_ics): When comparing list-initialization sequences, do not return early. 2022-04-19 Jakub Jelinek 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 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 PR c++/102804 * decl.cc (grokdeclarator): Drop typedef used with 'unsigned'. 2022-04-15 Jason Merrill PR c++/102987 * error.cc (dump_expr): Handle USING_DECL. [VIEW_CONVERT_EXPR]: Just look through location wrapper. 2022-04-14 Jason Merrill PR c++/104646 * constexpr.cc (maybe_save_constexpr_fundef): Don't do extra checks for defaulted ctors. 2022-04-14 Jason Merrill PR c++/82980 * lambda.cc (type_deducible_expression_p): New. (lambda_capture_field_type): Check it. 2022-04-14 Jason Merrill PR c++/65211 * pt.cc (tsubst_decl) [TYPE_DECL]: Copy TYPE_ALIGN. 2022-04-14 Jason Merrill 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 PR c++/101698 * pt.cc (tsubst_baselink): Also check dependent optype. 2022-04-14 Jason Merrill 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 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 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 PR c++/97296 * call.cc (direct_reference_binding): strip_top_quals when creating a ck_qual. 2022-04-12 Jason Merrill 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 PR c++/102071 * init.cc (build_new_1): Check array_p for alignment. 2022-04-12 Patrick Palka PR c++/103105 * pt.cc (build_extra_args): Call preserve_args. 2022-04-12 Jason Merrill PR c++/104142 * decl.cc (check_initializer): Check TREE_SIDE_EFFECTS. 2022-04-12 Jason Merrill PR c++/105223 PR c++/92918 * class.cc (finish_struct): Always using op=. 2022-04-11 Jason Merrill PR c++/98249 * call.cc (build_operator_new_call): Just look in ::. 2022-04-11 Alexandre Oliva * constexpr.cc (cxx_eval_call_expression): Disregard dtor result. 2022-04-11 Alexandre Oliva * semantics.cc (set_cleanup_locs): Propagate locus to call wrapped in cast-to-void. 2022-04-11 Jason Merrill PR c++/100370 * init.cc (warn_placement_new_too_small): Check deref. 2022-04-09 Jason Merrill 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 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 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 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 PR c++/101051 * decl.cc (grokdeclarator): Reject conversion with trailing return sooner. 2022-04-07 Jason Merrill PR c++/101717 * lambda.cc (lambda_expr_this_capture): Check all enclosing lambdas for completeness. 2022-04-07 Jason Merrill PR c++/105187 * typeck2.cc (store_init_value): Allow TREE_HAS_CONSTRUCTOR for vectors. 2022-04-06 Jakub Jelinek 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 PR c++/105143 * pt.cc (do_class_deduction): Check complain before attempting to issue a -Wctad-maybe-unsupported warning. 2022-04-06 Jason Merrill PR c++/104702 * init.cc (build_vec_init): Use a reference for the result. 2022-04-06 Jason Merrill 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 PR c++/103852 DR 1286 * pt.cc (do_class_deduction): Pedwarn for renaming alias in C++17. 2022-04-05 Jason Merrill 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 PR c++/101894 * decl.cc (duplicate_decls): Copy DECL_FRIEND_CONTEXT. 2022-04-04 Jason Merrill PR c++/103852 DR 1286 * pt.cc (get_underlying_template): Compare default template args. 2022-04-03 Benno Evers Iain Sandoe PR c++/103328 * coroutines.cc (morph_fn_to_coro): Reset current_binding_level->blocks. 2022-04-01 Jason Merrill Revert: 2022-03-31 Jason Merrill PR c++/96645 * parser.cc (cp_parser_early_parsing_nsdmi): New. (cp_parser_member_declaration): Call it. 2022-04-01 Jason Merrill Revert: 2022-03-24 Jason Merrill 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 PR c++/105110 * pt.cc (unify) : Drop cv-quals from the argument type of an NTTP before deducing from it. 2022-03-31 Jason Merrill PR c++/96645 * parser.cc (cp_parser_early_parsing_nsdmi): New. (cp_parser_member_declaration): Call it. 2022-03-30 Patrick Palka PR c++/100474 * constraint.cc (diagnose_trait_expr): Handle all remaining traits appropriately. Remove default case. 2022-03-30 Marek Polacek PR c++/93280 PR c++/104583 * init.cc (get_nsdmi): Set TARGET_EXPR_DIRECT_INIT_P to in_ctor. 2022-03-30 Jakub Jelinek 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 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 * pt.cc (determine_specialization): Add comment. 2022-03-28 Patrick Palka 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 PR c++/105064 * constraint.cc (maybe_substitute_reqs_for): Don't assume DECL_TEMPLATE_INFO is available. 2022-03-28 Jason Merrill 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 PR c++/102071 * init.cc (build_new_1): Include cookie in alignment. Omit constexpr wrapper from alloc_call. 2022-03-28 Jason Merrill PR c++/103291 * name-lookup.cc (push_local_extern_decl_alias): Call determine_visibility. 2022-03-28 Jason Merrill PR c++/102123 * pt.cc (tsubst_copy): Use make_unbound_class_template for rewriting a type template reference. 2022-03-28 Jason Merrill PR c++/103968 * pt.cc (value_dependent_expression_p): Check has_value_dependent_address for conversion to reference. 2022-03-28 Jason Merrill 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 PR c++/102045 * call.cc (make_base_init_ok): Call make_used. 2022-03-28 Jason Merrill PR c++/104847 * mangle.cc (write_expression): Don't write a union designator when undigested. 2022-03-28 Jason Merrill PR c++/99445 PR c++/103769 * tree.cc (strip_typedefs): Use build_distinct_type_copy. 2022-03-26 Patrick Palka PR c++/105050 * constexpr.cc (potential_constant_expression_1) : Clarify error message when a if-stmt is non-constant because its branches are non-constant. 2022-03-26 Patrick Palka PR c++/103455 * call.cc (add_builtin_candidate) : Test CLASS_TYPE_P instead of MAYBE_CLASS_TYPE_P. 2022-03-26 Jakub Jelinek * parser.cc (cp_parser_postfix_expression) : 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 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 PR c++/104284 * decl.cc (check_initializer): Don't call build_aggr_init in a template. 2022-03-24 Jason Merrill 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 PR c++/102990 * typeck2.cc (massage_init_elt): Avoid folding CONSTRUCTORs. 2022-03-24 Patrick Palka 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 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 PR c++/103337 * decl.cc (reshape_single_init): New. (reshape_init_class): Use it. 2022-03-23 Jason Merrill 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 PR c++/105006 * name-lookup.cc (lookup_using_decl): Set DECL_DEPENDENT_P if lookup finds a dependent using. 2022-03-21 Jason Merrill PR c++/58646 * init.cc (build_vec_init): Check for vla element type. 2022-03-21 Jason Merrill 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 PR c++/101767 * decl.cc (reshape_init_class): Back out of anon struct if a designator doesn't match. 2022-03-18 Jason Merrill 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 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) : 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 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 * 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 PR c++/96780 * cp-gimplify.cc (cp_fold) : Fold calls to std::move/forward and other cast-like functions into simple casts. 2022-03-15 Patrick Palka 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 PR c++/104623 * parser.cc (cp_parser_skip_to_pragma_eol): Don't purge any tokens. 2022-03-14 Jakub Jelinek 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 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) : Set tf_tst_ok when substituting the type. (tsubst): Clear tf_tst_ok and remember if it was set. : Pass tf_tst_ok to make_typename_type appropriately. (tsubst_copy) : Set tf_tst_ok when substituting the type. (tsubst_copy_and_build) : Likewise. : Likewise. 2022-03-12 Patrick Palka 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 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 Jason Merrill 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 * semantics.cc (finish_unary_fold_expr): Use input_location instead of UNKNOWN_LOCATION. (finish_binary_fold_expr): Likewise. 2022-03-12 Thomas Schwinge 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 PR c++/104608 * parser.cc (cp_parser_template_name): Repeat lookup of TYPE_DECLs. 2022-03-10 Marek Polacek 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 PR c++/104846 * decl.cc (grokdeclarator): Check FUNC_OR_METHOD_TYPE_P before giving data member errors. 2022-03-10 Jakub Jelinek PR c++/103460 * decl.cc (grok_op_properties): Allow variadic operator[] for C++23. 2022-03-10 Roger Sayle 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 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 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 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 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 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 PR c++/96440 * decl.cc (start_decl): Defend against prefix_attributes being error_mark_node. 2022-03-08 Roger Sayle 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 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 PR c++/104108 * pt.cc (convert_nontype_argument): Recompute value_dependent_expression_p after build_converted_constant_expr. 2022-03-08 Marek Polacek * decl2.cc (is_late_template_attribute): Do not defer attribute unavailable. * pt.cc (tsubst_enum): Set TREE_UNAVAILABLE. 2022-03-08 Jakub Jelinek PR c++/104806 * search.cc (lookup_field_fuzzy_info::fuzzy_lookup_field): Ignore identifiers with space at the end. 2022-03-07 Jason Merrill 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 * parser.cc (cp_parser_omp_clause_map): Add missing space in string literal. 2022-03-07 Jakub Jelinek * cvt.cc: Fix up duplicated word issue in a comment. * pt.cc: Likewise. * module.cc: Likewise. * coroutines.cc: Likewise. 2022-03-04 Nathan Sidwell * mangle.cc (is_std_substitution): Check global module. (is_std_substitution_char): Return bool. 2022-03-04 Nathan Sidwell * 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 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 PR c++/104667 * decl2.cc (is_late_template_attribute): Cope with a decl without a type. 2022-02-27 Jason Merrill PR c++/104618 * typeck.cc (cp_build_addr_expr_1): Also maybe_undo_parenthesized_ref. 2022-02-24 Martin Liska * pt.cc (defarg_insts_for): Use braces for subobject. 2022-02-18 Patrick Palka 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 PR c++/104539 * pt.cc (mark_decl_instantiated): Don't clear DECL_COMDAT. 2022-02-17 Jason Merrill 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 PR c++/104565 * semantics.cc (finish_compound_literal): Don't perform non-dependent expr folding before calling check_narrowing. 2022-02-16 Patrick Palka PR c++/104507 * constexpr.cc (potential_constant_expression_1) : Return false instead of recursing. Assert tf_error isn't set. 2022-02-15 Jason Merrill 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 PR c++/104513 * constexpr.cc (potential_constant_expression_1) : Don't punt if returns (target). 2022-02-11 Jakub Jelinek PR c++/104472 * constexpr.cc (cxx_eval_internal_function) : 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 * module.cc (depset::hash::add_specializations): Use STRIP_TEMPLATE. 2022-02-10 Tobias Burnus 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 * pt.cc (filter_memfn_lookup): Handle dependent USING_DECL better. 2022-02-10 Marcel Vollweiler * 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 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 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 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 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 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 PR c++/80951 * pt.cc (uses_deducible_template_parms): Consider the noexcept-spec of a function type. 2022-02-08 Patrick Palka PR c++/104410 * constraint.cc (satisfaction_value): Relax assert to accept cv-qualified bool. 2022-02-08 Patrick Palka 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 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 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 PR c++/89074 PR c++/104033 * constexpr.cc (cxx_eval_binary_expression): Temporarily set folding_cxx_constexpr. 2022-02-05 Jason Merrill 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 * pt.cc (iterative_hash_template_arg): Add comment. 2022-02-03 Patrick Palka 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 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 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 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 PR c++/102434 * class.cc (finish_struct): Don't allow union initializer_list. 2022-01-31 Patrick Palka PR c++/104294 * pt.cc (ctor_deduction_guides_for): Correct computation of outer_args. 2022-01-31 Patrick Palka PR c++/104291 * pt.cc (for_each_template_parm_r) : 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 Jason Merrill 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 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 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 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 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 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 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 PR c++/104206 PR c++/101072 * semantics.cc (finish_compound_literal): Restore VECTOR_TYPE check. 2022-01-26 Jakub Jelinek 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 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 PR c++/104235 * parser.cc (cp_parser_template_name): Repeat lookup of USING_DECL. 2022-01-26 Jason Merrill PR c++/103057 * pt.cc (tsubst_aggr_type): Call tsubst for alias template specialization. 2022-01-25 Patrick Palka 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 PR c++/59950 * call.cc (build_over_call): Use cp_build_indirect_ref. 2022-01-24 Patrick Palka PR c++/104197 * pt.cc (make_auto_1): Use -1 as a placeholder default argument for level. 2022-01-24 Patrick Palka 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 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 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 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 * semantics.cc (find_failing_clause): Return expr if not decomposable. (finish_static_assert): Show constant values in failing comparison. 2022-01-21 Jason Merrill 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 PR c++/101715 * tree.cc (fixup_deferred_exception_variants): Remove duplicate variants after parsing the exception specifications. 2022-01-21 Jason Merrill PR c++/104139 PR c++/103681 * class.cc (end_of_class): Use base_binfo. 2022-01-20 Jason Merrill PR c++/101405 * decl.cc (reshape_init_class): Reject designator for a member of another class. 2022-01-20 Patrick Palka PR c++/91911 PR c++/103672 * pt.cc (keep_template_parm): Punt on a level 0 template parm. (tsubst_decl) : Remove !CHECKING_P safeguard. (tsubst) : 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 * decl.cc (grokdeclarator): Diagnose a CTAD placeholder as function return type even when !funcdecl_p. 2022-01-20 Martin Liska PR c++/104134 * error.cc (dump_aggr_type): Partially disable the warning. 2022-01-20 Jason Merrill PR c++/102300 * parser.cc (cp_parser_template_name): Use dependent_scope_p. 2022-01-19 David Malcolm * 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 * parser.cc (saved_token_sentinel::rollback): Use cp_lexer_previous_token. 2022-01-18 Jakub Jelinek 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 Jakub Jelinek 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 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 * 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 * 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 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 * parser.c (cp_parser_omp_requires): Don't "sorry" dynamic_allocators. 2022-01-14 Chung-Lin Tang PR c++/103705 * semantics.c (finish_omp_clauses): Also continue peeling off of outer node for ARRAY_REFs. 2022-01-14 Jakub Jelinek PR c++/103991 * cp-objcp-common.c (cxx_block_may_fallthru) : 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 Jason Merrill 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 Jason Merrill PR c++/103480 * tree.c (move): If expr is xvalue_p, just return expr without build_static_cast. 2022-01-11 Jakub Jelinek 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 PR c++/103831 * call.c (build_new_method_call): Consider dependent bases only if 'this' is available. 2022-01-11 Olivier Hainque * decl.c (cxx_init_decl_processing): Move code possibly altering flag_weak before code testing it. 2022-01-10 Patrick Palka 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 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 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 PR c++/89074 * constexpr.c (cxx_maybe_fold_addr_pointer_plus): New function. (cxx_eval_binary_expression): Use it. 2022-01-08 Jason Merrill PR c++/103946 * init.c (build_vec_init): Remove assert. * tree.c (build_vec_init_expr): Likewise. 2022-01-08 Jason Merrill PR c++/100588 * call.c (build_op_delete_call): Ignore destroying delete if alloc_fn. 2022-01-07 Jason Merrill 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 PR c++/103936 PR c++/65591 * cp-gimplify.c (cp_gimplify_expr): Restore VEC_INIT_EXPR handling. 2022-01-07 Jason Merrill PR c++/103711 * init.c (perform_target_ctor): Select destructor by in_chrg. 2022-01-07 Jason Merrill PR c++/61611 * except.c (in_nested_catch): New. (expand_end_catch_block): Check it. 2022-01-07 Jason Merrill 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 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 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 * typeck2.c (split_nonconstant_init_1): Don't cleanup the last elt. (split_nonconstant_init): Adjust. 2022-01-07 Jason Merrill 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 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 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 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 * init.c (build_new_1): Remove preevaluation code. 2022-01-05 Nathan Sidwell * pt.c (instantiate_class_template_1): Process attribute((used)) set in class's context. 2022-01-05 Nathan Sidwell * init.c (build_new_1): Check complain before alignment warning. 2022-01-04 Jason Merrill * cp-tree.h (class releasing_vec): Add begin/end fns. 2022-01-04 Jason Merrill * init.c: Include -*- C++ -*- on first line. 2022-01-03 Marek Polacek PR c++/103758 * parser.c (cp_parser_decl_specifier_seq): Replace % with %qD. 2022-01-03 Marek Polacek * parser.c (make_char_string_pack): Add a cast to const unsigned char *. 2022-01-03 Jakub Jelinek PR c++/103600 * rtti.c (get_tinfo_decl_direct): Add "non overlapping" attribute to DECL_TINFO_P VAR_DECLs. 2022-01-02 Jason Merrill * init.c (build_vec_init): Append the decrement to elt_init. 2022-01-02 Jason Merrill * decl.c (wrap_cleanups_r): Don't wrap if noexcept. 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