2023-06-02 Jason Merrill DR 2735 PR c++/109247 * call.cc (sfk_copy_or_move): New. (joust): Add tiebreaker for explicit conv and copy ctor. 2023-06-02 Jason Merrill PR c++/110070 PR c++/105838 * call.cc (maybe_init_list_as_array): Set DECL_MERGEABLE. (convert_like_internal) [ck_list]: Set it. (set_up_extended_ref_temp): Copy it. * tree.cc (handle_no_unique_addr_attribute): Set it. 2023-06-01 Jason Merrill * typeck2.cc (check_narrowing): Check flag_permissive. 2023-05-30 Tobias Burnus PR c/109999 * parser.cc (cp_parser_oacc_all_clauses, cp_parser_omp_all_clauses): Improve error wording. 2023-05-19 Andrew Pinski PR driver/33980 * lang-specs.h ("@c++-header"): Add %w after the --output-pch. ("@c++-system-header"): Likewise. ("@c++-user-header"): Likewise. 2023-05-19 Patrick Palka * constraint.cc (normalize_concept_check): Avoid having to do two norm_cache lookups. Remove unnecessary early exit for an ill-formed concept definition. 2023-05-19 Patrick Palka PR c++/97340 * pt.cc (lookup_and_finish_template_variable): Don't call convert_from_reference. (tsubst_copy_and_build) : Call convert_from_reference on the result of lookup_and_finish_template_variable. 2023-05-18 Bernhard Reutner-Fischer * call.cc (promoted_arithmetic_type_p): Use _P defines from tree.h. (build_conditional_expr): Ditto. (convert_like_internal): Ditto. (convert_arg_to_ellipsis): Ditto. (build_over_call): Ditto. (compare_ics): Ditto. * class.cc (is_empty_base_ref): Ditto. * coroutines.cc (rewrite_param_uses): Ditto. * cp-tree.h (DECL_DISCRIMINATOR_P): Ditto. (ARITHMETIC_TYPE_P): Ditto. * cvt.cc (ocp_convert): Ditto. * cxx-pretty-print.cc (pp_cxx_template_argument_list): Ditto. * decl.cc (layout_var_decl): Ditto. (get_tuple_size): Ditto. * error.cc (dump_simple_decl): Ditto. * lambda.cc (start_lambda_scope): Ditto. * mangle.cc (write_template_arg): Ditto. * method.cc (spaceship_comp_cat): Ditto. * module.cc (node_template_info): Ditto. (trees_out::start): Ditto. (trees_out::decl_node): Ditto. (trees_in::read_var_def): Ditto. (set_instantiating_module): Ditto. * name-lookup.cc (maybe_record_mergeable_decl): Ditto. (consider_decl): Ditto. (maybe_add_fuzzy_decl): Ditto. * pt.cc (convert_nontype_argument): Ditto. * semantics.cc (handle_omp_array_sections_1): Ditto. (finish_omp_clauses): Ditto. (finish_omp_target_clauses_r): Ditto. (is_this_parameter): Ditto. * tree.cc (build_cplus_array_type): Ditto. (is_this_expression): Ditto. * typeck.cc (do_warn_enum_conversions): Ditto. * typeck2.cc (store_init_value): Ditto. (check_narrowing): Ditto. 2023-05-17 Jakub Jelinek PR c++/109868 * init.cc (build_zero_init_1): Don't initialize zero-width bitfields. For unions only initialize the first FIELD_DECL. 2023-05-16 Marek Polacek PR c++/109774 * typeck.cc (check_return_expr): In a template, return only after suppressing -Wdangling-reference. 2023-05-16 Patrick Palka PR c++/109871 * call.cc (add_list_candidates): Check for invalid designated initialization sooner and even for types that have a list constructor. 2023-05-11 Patrick Palka PR c++/109745 * typeck2.cc (poison_mutable_constructors): Define. (store_init_value): Use it instead of setting CONSTRUCTOR_MUTABLE_POISON directly. 2023-05-11 Patrick Palka Jonathan Wakely PR c++/83258 PR c++/80488 PR c++/97700 * pt.cc (convert_nontype_argument_function): Remove linkage requirement for C++17 and later. (invalid_tparm_referent_p) : Restrict DECL_ARTIFICIAL rejection test to VAR_DECL. 2023-05-10 Marek Polacek PR c++/109680 * method.cc (build_trait_object): New. (assignable_expr): Use it. (ref_xes_from_temporary): Likewise. (is_convertible_helper): Likewise. Check FUNC_OR_METHOD_TYPE_P. 2023-05-10 Jason Merrill * call.cc (convert_like_internal): Share ck_ref_bind handling between all bad conversions. 2023-05-10 Jason Merrill DR 2543 * constexpr.cc (cxx_eval_outermost_constant_expr): Preserve TARGET_EXPR flags. (potential_constant_expression_1): Check TARGET_EXPR_ELIDING_P. * typeck2.cc (store_init_value): Diagnose constinit sooner. 2023-05-10 Jason Merrill * constexpr.cc (cxx_eval_outermost_constant_expr): Always check for address of immediate fn. (maybe_constant_init_1): Evaluate PTRMEM_CST. 2023-05-10 Jakub Jelinek PR c++/109756 * parser.cc (cp_parser_std_attribute): For unknown attributes with arguments set TREE_VALUE (attribute) to error_mark_node after skipping the balanced tokens. (cp_parser_std_attribute_list): If ... is used after attribute without arguments, diagnose it and return error_mark_node. If TREE_VALUE (attribute) is error_mark_node, don't call make_pack_expansion nor return early error_mark_node. 2023-05-09 Patrick Palka PR c++/109752 * constraint.cc (satisfaction_cache::satisfaction_cache): In the unexpected case of evaluating an atom for the first time noisily, remove the cache slot that we inserted. 2023-05-09 Patrick Palka PR c++/109761 * parser.cc (cp_parser_class_specifier): Don't pass a class context to noexcept_override_late_checks. (noexcept_override_late_checks): Remove 'type' parameter and use DECL_CONTEXT of 'fndecl' instead. 2023-05-09 Jakub Jelinek PR c++/109756 * cp-gimplify.cc (process_stmt_assume_attribute): Diagnose pack expansion of assume attribute. 2023-05-08 Patrick Palka PR c++/106214 PR c++/93107 * pt.cc (do_auto_deduction): Move up resolve_nondeduced_context calls to happen before do_class_deduction. Add some error_mark_node tests. 2023-05-07 Patrick Palka PR c++/85979 * cxx-pretty-print.cc (cxx_pretty_printer::unary_expression) : Consider ALIGNOF_EXPR_STD_P. * error.cc (dump_expr) : Likewise. 2023-05-07 Patrick Palka DR 2256 PR c++/103091 * decl.cc (decl_jump_unsafe): Return bool instead of int. Don't consider TYPE_HAS_NONTRIVIAL_DESTRUCTOR. (check_previous_goto_1): Simplify now that decl_jump_unsafe returns bool instead of int. (check_goto): Likewise. 2023-05-07 Patrick Palka * pt.cc (instantiate_alias_template): Exit early upon error from coerce_template_parms. Remove dependence test guarding constraints_satisfied_p. 2023-05-07 Patrick Palka * cp-tree.h (PLACEHOLDER_TYPE_CONSTRAINTS_INFO): Harden via TEMPLATE_TYPE_PARM_CHECK. (TPARMS_PRIMARY_TEMPLATE): Harden via TREE_VEC_CHECK. (TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL): Harden via TEMPLATE_TEMPLATE_PARM_CHECK. * cxx-pretty-print.cc (cxx_pretty_printer::simple_type_specifier): Guard PLACEHOLDER_TYPE_CONSTRAINTS access. * error.cc (dump_type) : Use separate variable to store CLASS_PLACEHOLDER_TEMPLATE result. * pt.cc (outer_template_args): Use strip_innermost_template_args. (any_type_dependent_arguments_p): Exit early if !processing_template_decl. Use range-based for. (any_dependent_template_arguments_p): Likewise. 2023-05-07 Patrick Palka PR c++/98283 * pt.cc (tsubst_copy_and_build) : Propagate REF_PARENTHESIZED_P more generally via force_paren_expr. * semantics.cc (force_paren_expr): Document default argument. 2023-05-07 Patrick Palka PR c++/109651 * pt.cc (coerce_template_args_for_ttp): Mention we can hit the current_template_parms fallback when level-lowering a bound ttp. (tsubst_template_decl): Add lambda_tparms parameter. Prefer to use lambda_tparms instead of substituting DECL_TEMPLATE_PARMS. (tsubst_decl) : Pass NULL_TREE as lambda_tparms to tsubst_template_decl. (tsubst_lambda_expr): For a generic lambda, substitute DECL_TEMPLATE_PARMS and set current_template_parms to it before substituting the function type. Pass the substituted DECL_TEMPLATE_PARMS as lambda_tparms to tsubst_template_decl. 2023-05-07 Patrick Palka PR c++/109480 * semantics.cc (enforce_access): Check current_template_parms instead of processing_template_decl when deciding whether to defer the access check. 2023-05-07 Patrick Palka PR c++/109480 * constexpr.cc (potential_constant_expression_1) : Reorganize to call get_fns sooner. Remove special handling of the object argument of a non-static member function call. Remove dead store to 'fun'. 2023-05-05 Jason Merrill Revert: 2023-04-27 Jason Merrill PR c++/61445 * pt.cc (instantiate_decl): Assert !defer_ok for local class members. 2023-05-03 Jason Merrill PR c++/91618 PR c++/109649 * friend.cc (do_friend): Don't call check_explicit_specialization if DECL_TEMPLATE_INFO is already set. * decl2.cc (check_classfn): Set DECL_TEMPLATE_INFO. * name-lookup.cc (set_decl_namespace): Likewise. 2023-05-03 Jakub Jelinek * cp-gimplify.cc (cp_fold_data): Move definition earlier. (cp_gimplify_expr): Pass address of ff_genericize | ff_mce_false constructed data rather than &pset to cp_walk_tree with cp_fold_r. 2023-05-03 Jason Merrill * pt.cc (reduce_template_parm_level): Fix comparison of template template parm to cached version. 2023-05-02 Jason Merrill * pt.cc (instantiate_class_template): Skip the RECORD_TYPE of a class template. (tsubst_template_decl): Clear CLASSTYPE_USE_TEMPLATE. 2023-05-02 Jason Merrill * name-lookup.cc (pop_from_top_level): Don't invalidate_class_lookup_cache. 2023-05-02 Jason Merrill PR c++/109678 * cp-tree.h (lookup_base): Add offset parm. * constexpr.cc (cxx_fold_indirect_ref_1): Pass it. * search.cc (struct lookup_base_data_s): Add offset. (dfs_lookup_base): Handle it. (lookup_base): Pass it. 2023-05-02 Jason Merrill PR c++/109678 * constexpr.cc (cxx_fold_indirect_ref_1): Handle empty base first. 2023-05-01 Jason Merrill PR c++/109666 * name-lookup.cc (maybe_push_to_top_level) (maybe_pop_from_top_level): Split out... * pt.cc (instantiate_body): ...from here. * init.cc (maybe_instantiate_nsdmi_init): Use them. * name-lookup.h: Declare them.. 2023-04-28 Eugene Rozenfeld * Make-lang.in: Merge perf data collected when compiling cc1plus and runtime libraries 2023-04-27 Jason Merrill * call.cc (print_conversion_rejection): Use iloc_sentinel. 2023-04-27 Jason Merrill PR c++/61445 * pt.cc (instantiate_decl): Assert !defer_ok for local class members. 2023-04-26 Jason Merrill * init.cc (nsdmi_inst): Remove. (maybe_instantiate_nsdmi_init): Use DECL_INITIAL instead. 2023-04-26 Jason Merrill PR c++/109241 * pt.cc (instantiate_class_template): Do partially instantiate. (tsubst_expr): Do call complete_type for partial instantiations. 2023-04-26 Jason Merrill PR c++/69836 * pt.cc (regenerate_decl_from_template): Skip unique friends. 2023-04-26 Patrick Palka * pt.cc (most_specialized_partial_spec): Exit early when DECL_TEMPLATE_SPECIALIZATIONS is empty. Move local variable declarations closer to their first use. Remove redundant flag_concepts test. Remove redundant forward declaration. 2023-04-25 Patrick Palka PR c++/108975 * pt.cc (value_dependent_expression_p) : Suppress conservative early exit for reference variables when DECL_HAS_VALUE_EXPR_P. 2023-04-25 Tobias Burnus * parser.cc (cp_parser_omp_scan_loop_body): Handle zero exec statements before/after 'omp scan'. 2023-04-24 Patrick Palka * cp-tree.h (cp_expr_location): Define here. * tree.cc (cp_expr_location): Don't define here. 2023-04-21 Jason Merrill PR c++/108099 * decl.cc (grokdeclarator): Don't clear typedef_decl after 'unsigned typedef' pedwarn. Use c_common_signed_or_unsigned_type. Also handle 'signed typedef'. 2023-04-21 Patrick Palka * tree.cc (cp_walk_subtrees): Avoid repeatedly dereferencing tp. : Use cp_unevaluated and WALK_SUBTREE. : Likewise. 2023-04-20 Patrick Palka * pt.cc (tsubst) : Don't recurse when level lowering a cv-qualified type template parameter. Remove recursive loop breaker in the level lowering case for constrained autos. Use the TEMPLATE_PARM_DESCENDANTS cache in this case as well. 2023-04-20 Patrick Palka * constraint.cc (diagnose_trait_expr): Convert a TREE_VEC of arguments into a TREE_LIST for sake of pretty printing. * cxx-pretty-print.cc (pp_cxx_trait): Handle TREE_VEC instead of TREE_LIST of trailing variadic trait arguments. * method.cc (constructible_expr): Likewise. (is_xible_helper): Likewise. * parser.cc (cp_parser_trait): Represent trailing variadic trait arguments as a TREE_VEC instead of TREE_LIST. * pt.cc (value_dependent_expression_p): Handle TREE_VEC instead of TREE_LIST of trailing variadic trait arguments. * semantics.cc (finish_type_pack_element): Likewise. (check_trait_type): Likewise. 2023-04-20 Patrick Palka * tree.cc (strip_typedefs): Move TREE_LIST handling to strip_typedefs_expr. Dispatch to strip_typedefs_expr for non-type 't'. : Remove manual dispatching to strip_typedefs_expr. : Likewise. (strip_typedefs_expr): Replaces calls to strip_typedefs_expr with strip_typedefs throughout. Don't dispatch to strip_typedefs for type 't'. : Replace this with the better version from strip_typedefs. 2023-04-19 Patrick Palka Jonathan Wakely PR c++/100157 * cp-trait.def (TYPE_PACK_ELEMENT): Define. * cp-tree.h (finish_trait_type): Add complain parameter. * cxx-pretty-print.cc (pp_cxx_trait): Handle CPTK_TYPE_PACK_ELEMENT. * parser.cc (cp_parser_constant_expression): Document default arguments. (cp_parser_trait): Handle CPTK_TYPE_PACK_ELEMENT. Pass tf_warning_or_error to finish_trait_type. * pt.cc (tsubst) : Handle non-type first argument. Pass complain to finish_trait_type. * semantics.cc (finish_type_pack_element): Define. (finish_trait_type): Add complain parameter. Handle CPTK_TYPE_PACK_ELEMENT. * tree.cc (strip_typedefs): Handle non-type first argument. Pass tf_warning_or_error to finish_trait_type. * typeck.cc (structural_comptypes) : Use cp_tree_equal instead of same_type_p for the first argument. 2023-04-19 Patrick Palka PR c++/109556 * pt.cc (try_class_unification): Don't ggc_free the copy of 'targs'. 2023-04-19 Jason Merrill PR c++/108099 * decl.cc (grokdeclarator): Keep typedef_decl for __int128_t. 2023-04-17 Patrick Palka PR c++/109531 * pt.cc (tsubst) : In the level-lowering case just use lookup_template_class to rebuild the bound ttp. 2023-04-15 Jason Merrill PR c++/109357 * constexpr.cc (cxx_eval_constant_expression) [TARGET_EXPR]: Check for complex initializer. 2023-04-13 Patrick Palka PR c++/109420 * decl.cc (make_typename_type): Also ignore non-types during the lookup if tag_type corresponds to an elaborated-type-specifier. * pt.cc (tsubst) : Pass class_type or enum_type as tag_type to make_typename_type accordingly instead of always passing typename_type. 2023-04-13 Jason Merrill PR c++/109277 * semantics.cc (check_trait_type): Handle incomplete type directly. * typeck2.cc (cxx_incomplete_type_diagnostic): Remove assert. 2023-04-13 Jason Merrill * typeck2.cc (cxx_incomplete_type_diagnostic): Return bool. * cp-tree.h (cxx_incomplete_type_diagnostic): Adjust. 2023-04-12 Jakub Jelinek * Make-lang.in (s-cp-module-version): New target. (cp/module.o): Depend on it. (MODULE_VERSION): Remove variable. (CFLAGS-cp/module.o): For -DMODULE_VERSION= argument just cat s-cp-module-version. 2023-04-09 Iain Sandoe * coroutines.cc (coro_rewrite_function_body): Ensure that added bind expressions have scope blocks. 2023-04-04 Jason Merrill PR c++/107484 * decl2.cc (find_last_decl): Return early if DECL_USE_TEMPLATE. 2023-04-03 Patrick Palka PR c++/109300 * decl.cc (cp_finish_decl): Diagnose ordinary auto deduction with no initializer, instead of asserting. 2023-04-01 Patrick Palka PR c++/109160 * cp-tree.h (do_auto_deduction): Add defaulted tmpl parameter. * pt.cc (convert_template_argument): Pass 'in_decl' as 'tmpl' to do_auto_deduction. (tsubst_decl) : Pass 'tmpl' instead of 't' as 'in_decl' to coerce_template_parms. (unify) : Pass TPARMS_PRIMARY_TEMPLATE as 'tmpl' to do_auto_deduction. (do_auto_deduction): Document default arguments. Rename local variable 'tmpl' to 'ctmpl'. Use 'tmpl' to obtain a full set of template arguments for satisfaction in the adc_unify case. 2023-04-01 Patrick Palka PR c++/53164 PR c++/105848 * pt.cc (invalid_tparm_referent_p): Accept ADDR_EXPR of FUNCTION_DECL. (instantiate_class_template): Call mark_template_arguments_used. (tsubst_copy_and_build) : Revert r13-995 change. (mark_template_arguments_used): Define. (instantiate_body): Call mark_template_arguments_used. 2023-04-01 Iain Sandoe PR c++/101118 * coroutines.cc (flatten_await_stmt): Use the current count of promoted temporaries to build a unique name for the frame entries. 2023-03-30 Jason Merrill PR c++/105452 * search.cc (type_context_for_name_lookup): New. (accessible_p): Handle anonymous union. * init.cc (maybe_instantiate_nsdmi_init): Use type_context_for_name_lookup. * parser.cc (cp_parser_class_specifier): Likewise. * cp-tree.h (type_context_for_name_lookup): Declare. 2023-03-30 Jason Merrill PR c++/105221 * pt.cc (unify) [FUNCTION_TYPE]: Handle function pointer conversions. 2023-03-30 Jakub Jelinek PR c++/109319 * decl2.cc (grok_array_decl): After emitting a pedwarn for -Wcomma-subscript, if processing_template_decl set orig_index_exp to compound expr from orig_index_exp_list. 2023-03-30 Jason Merrill PR c++/107897 PR c++/108887 * decl2.cc (record_mangling): Use symtab_node::reset. 2023-03-30 Jakub Jelinek PR c++/109278 * call.cc (convert_like_internal): If pedwarn for extended float type conversions doesn't report anything, avoid calling maybe_inform_about_fndecl_for_bogus_argument_init. 2023-03-29 Jason Merrill PR c++/109321 PR c++/109320 * pt.cc (alias_ctad_tweaks): Rewrite deduced args. (type_targs_deducible_from): Handle null pack deduction. 2023-03-28 David Malcolm PR c/107002 * parser.cc (cp_parser_binary_expression): Update for new param of check_for_xor_used_as_pow. 2023-03-28 Jakub Jelinek PR c++/109309 * contracts.cc: Include intl.h. (check_postcondition_result): Don't form diagnostics from two halves of an English message to allow translations. 2023-03-24 Patrick Palka PR c++/106969 * parser.cc (cp_parser_class_specifier): Clear current_class_ptr and current_class_ref sooner, before parsing a class definition. 2023-03-24 Jason Merrill PR c++/105481 * pt.cc (type_unification_real): Adjust for partial ordering. 2023-03-23 Jason Merrill PR c++/105996 * typeck.cc (build_ptrmemfunc): Drop 0-offset optimization and location wrappers. 2023-03-23 Marek Polacek PR c++/107532 * call.cc (class_has_reference_member_p): New. (class_has_reference_member_p_r): New. (reference_like_class_p): Don't look for a specific constructor. Use a DFS walk with class_has_reference_member_p_r. 2023-03-23 Jason Merrill PR c++/109241 * pt.cc (find_parameter_packs_r): Handle null TREE_BINFO. 2023-03-22 Jason Merrill PR c++/108390 * pt.cc (unify): Use fold of build_nop instead of fold_convert. 2023-03-22 Jason Merrill PR c++/108795 * semantics.cc (finish_id_expression_1): Check scope before returning id_expression. 2023-03-22 Alex Coplan PR c++/109177 * call.cc (build_over_call): Use make_temp_override to suppress both unavailable and deprecated warnings when calling build_addr_func. 2023-03-21 Jason Merrill PR c++/106890 * init.cc (maybe_instantiate_nsdmi_init): Don't leave current_function_decl set to a constructor. 2023-03-20 Marek Polacek PR c++/109159 * call.cc (add_template_candidate_real): Add explicit decls to the set of candidates when the initializer is a braced-init-list. 2023-03-20 Jakub Jelinek PR c++/109164 * cp-tree.h (var_needs_tls_wrapper): Declare. * decl2.cc (var_needs_tls_wrapper): No longer static. * decl.cc (cp_finish_decl): Clear TREE_READONLY on TLS variables for which a TLS wrapper will be needed. 2023-03-17 Jason Merrill PR c++/108975 * lambda.cc (prune_lambda_captures): Don't bother in a template. 2023-03-17 Jason Merrill PR c++/109172 * except.cc (build_throw): Check dtor access. 2023-03-17 Jason Merrill PR c++/69410 * friend.cc (do_friend): Handle namespace as scope argument. * decl.cc (grokdeclarator): Pass down in_namespace. 2023-03-16 Jason Merrill PR c++/105809 * init.cc (get_nsdmi): Split out... (maybe_instantiate_nsdmi_init): ...this function. * cp-tree.h: Declare it. * pt.cc (tsubst_expr): Use it. 2023-03-16 Jason Merrill PR c++/108242 * pt.cc (tsubst_expr) [TAG_DEFN]: Handle partial instantiation. 2023-03-16 Jason Merrill PR c++/101869 * semantics.cc (finish_qualified_id_expr): Don't try to build a pointer-to-member if the scope is an enumeration. 2023-03-16 Patrick Palka PR c++/109030 * constexpr.cc (maybe_constant_init_1): For an unevaluated non-manifestly-constant operand, don't constant evaluate and instead call fold_to_constant as in maybe_constant_value. 2023-03-16 Patrick Palka PR c++/100288 * constraint.cc (satisfaction_cache::get): Relax overly strict checking assert in the constraint recursion case. 2023-03-16 Jason Merrill PR c++/105406 * coroutines.cc (build_co_await): Handle lvalue 'o'. 2023-03-15 Jason Merrill PR c++/103871 PR c++/98056 * typeck.cc (cp_build_modify_expr): Allow array initialization of DECL_ARTIFICIAL variable. 2023-03-15 Marek Polacek PR c++/107280 * constexpr.cc (cxx_eval_store_expression): Strip location wrappers. 2023-03-15 Jason Merrill PR c++/58538 * semantics.cc (check_template_template_default_arg): Check maybe_get_template_decl_from_type_decl. 2023-03-15 Jason Merrill PR c++/108179 PR c++/104107 PR c++/95036 * pt.cc (coerce_template_template_parms): Use args from DECL_CONTEXT (arg_tmpl) instead of outer_args. 2023-03-15 Jason Merrill PR c++/108179 * pt.cc (coerce_template_template_parms): Take the arg and parm templates directly. (coerce_template_template_parm): Adjust. (template_template_parm_bindings_ok_p): Adjust. (convert_template_argument): Adjust. 2023-03-14 Patrick Palka PR c++/96830 * pt.cc (push_inline_template_parms_recursive): Set TEMPLATE_PARMS_CONSTRAINTS. (push_template_decl): For an out-of-line declaration, verify constraints for each enclosing template scope match those of the original template declaratation. 2023-03-14 Patrick Palka PR c++/96830 * pt.cc (redeclare_class_template): Add missing "of" in constraint mismatch diagnostic. (tsubst_friend_class): For an already declared class template, substitute and pass the friend declaration's constraints to redeclare_class_template instead of passing the existing template's constraints. 2023-03-14 Jason Merrill PR c++/108468 * pt.cc (unify_pack_expansion): Check that TPARMS_PRIMARY_TEMPLATE is non-null. 2023-03-14 Jason Merrill PR c++/107310 * cp-gimplify.cc (genericize_if_stmt): Restore folding of constant conditions. 2023-03-14 Jakub Jelinek PR c++/109096 * tree.cc (record_has_unique_obj_representations): Ignore unnamed bitfields. 2023-03-13 Jason Merrill PR c++/107128 * parser.cc (cp_parser_set_decl_spec_type): Use redefined_builtin_type for extended_float_type_p. 2023-03-13 Marek Polacek PR c++/107532 * call.cc (reference_like_class_p): Check for std::span. 2023-03-10 Jakub Jelinek PR c++/107558 * decl.cc (cp_finish_decl): Don't clear TREE_READONLY on automatic non-aggregate variables just because of -fmerge-all-constants. 2023-03-10 Jakub Jelinek PR c++/109039 * class.cc (end_of_class): For bit-fields, instead of computing offset as sum of byte_position (field) and DECL_SIZE_UNIT (field), compute it as sum of bit_position (field) and DECL_SIZE (field) divided by BITS_PER_UNIT rounded up. 2023-03-10 Jason Merrill PR c++/108972 * lambda.cc (compare_lambda_template_head): Check more for error_mark_node. 2023-03-10 Jason Merrill PR c++/108566 * mangle.cc (anon_aggr_naming_decl): New. (write_unqualified_name): Use it. 2023-03-10 Jakub Jelinek PR c/108079 * decl.cc (poplevel): Suppress OPT_Wunused_variable warning after diagnosing it. 2023-03-10 Jason Merrill PR c++/108099 * decl.cc (grokdeclarator): Handle non-typedef typedef_decl. 2023-03-10 Jason Merrill PR c++/108542 * class.cc (instantiate_type): Strip location wrapper. 2023-03-09 Jason Merrill PR c++/108773 * init.cc (find_allocator_temps_r): New. (combine_allocator_temps): Replace find_allocator_temp. (build_vec_init): Adjust. 2023-03-09 Jason Merrill DR 2664 PR c++/102529 * pt.cc (alias_ctad_tweaks): Continue after deduction failure. 2023-03-09 Jason Merrill Michael Spertus PR c++/105841 * pt.cc (corresponding_template_parameter_list): Split out... (corresponding_template_parameter): ...from here. (find_template_parameters): Factor out... (find_template_parameter_info::find_in): ...this function. (find_template_parameter_info::find_in_recursive): New. (find_template_parameter_info::found): New. (alias_ctad_tweaks): Only add parms used in the deduced args. 2023-03-09 Jason Merrill * cp-trait.def (IS_DEDUCIBLE): Add space to name. 2023-03-09 Jason Merrill PR c++/105841 * cp-trait.def (IS_DEDUCIBLE): New. * cxx-pretty-print.cc (pp_cxx_trait): Handle non-type. * parser.cc (cp_parser_trait): Likewise. * tree.cc (cp_tree_equal): Likewise. * pt.cc (tsubst_copy_and_build): Likewise. (type_targs_deducible_from): New. (alias_ctad_tweaks): Use it. * semantics.cc (trait_expr_value): Handle CPTK_IS_DEDUCIBLE. (finish_trait_expr): Likewise. * constraint.cc (diagnose_trait_expr): Likewise. * cp-tree.h (type_targs_deducible_from): Declare. 2023-03-07 Jason Merrill PR c++/108526 PR c++/106651 * pt.cc (tsubst_function_decl): Don't replace the closure parameter if DECL_STATIC_FUNCTION_P. 2023-03-07 Marek Polacek PR c++/107532 * call.cc (reference_like_class_p): New. (do_warn_dangling_reference): Add new bool parameter. See through reference_like_class_p. 2023-03-07 Jakub Jelinek PR c++/109042 * rtti.cc (emit_support_tinfo_1): Don't assert that last unemitted_tinfo_decls element is tinfo, instead pop from it only in that case. * decl2.cc (c_parse_final_cleanups): Don't call emit_tinfo_decl for unemitted_tinfO_decls which have already non-NULL DECL_INITIAL. 2023-03-07 Marek Polacek PR c++/109030 * constexpr.cc (cxx_eval_call_expression): Relax assert. 2023-03-07 Marek Polacek PR c++/107939 * constexpr.cc (potential_constant_expression_1) : Pass 'any' when recursing on a VAR_DECL and not a pointer to function. 2023-03-04 Jakub Jelinek PR c++/108702 * constexpr.cc: Include toplev.h. (cxx_eval_constant_expression) : When seeing a local static initialized by constant expression outside of a constexpr function which has been deferred by make_rtl_for_nonlocal_decl, call rest_of_decl_compilation on it. 2023-03-03 Patrick Palka PR c++/108998 * pt.cc (el_data::skipped_trees): New data member. (extract_locals_r): Push to skipped_trees any unevaluated contexts that we skipped over. (extract_local_specs): For the second walk, start from each tree in skipped_trees. 2023-03-03 Alexandre Oliva * typeck.cc (cp_build_binary_op): Suppress redundant warning for pfn null test in pmfn test with vbit-in-delta. 2023-03-02 Jakub Jelinek PR target/108883 * cp-tree.h (enum cp_tree_index): Remove CPTI_FALLBACK_DFLOAT*_TYPE enumerators. (fallback_dfloat32_type, fallback_dfloat64_type, fallback_dfloat128_type): Remove. * rtti.cc (emit_support_tinfo_1): If not emitted already, call emit_tinfo_decl and remove from unemitted_tinfo_decls right away. (emit_support_tinfos): Move &dfloat*_type_node from fundamentals array into new fundamentals_with_fallback array. Call emit_support_tinfo_1 on elements of that array too, with the difference that if the type is NULL, use a fallback REAL_TYPE for it temporarily. Drop the !targetm.decimal_float_supported_p () handling. Call targetm.emit_support_tinfos at the end. * mangle.cc (write_builtin_type): Remove references to fallback_dfloat*_type. Handle bfloat16_type_node mangling. 2023-03-02 Patrick Palka PR c++/108243 PR c++/97553 * cp-gimplify.cc (cp_fully_fold): Add an internal overload that additionally takes and propagate an mce_value parameter, and define the existing public overload in terms of it. (cp_fully_fold_init): Pass mce_false to cp_fully_fold. 2023-03-02 Patrick Palka PR c++/108243 * constexpr.cc (maybe_constant_init_1): Override manifestly_const_eval to true if is_static. 2023-03-02 Jakub Jelinek PR debug/108716 * cp-gimplify.cc (cp_genericize_r) : Set DECL_SOURCE_LOCATION on IMPORTED_DECL to expression location of USING_STMT or input_location. 2023-03-02 Marek Polacek PR c++/106259 * parser.cc (class_decl_loc_t::diag_mismatched_tags): If the first lookup of SPEC didn't find anything, try to look for most_general_template. 2023-03-02 Jakub Jelinek PR c++/105839 * parser.cc (cp_convert_omp_range_for): Allow in assert decomp_first_name without DECL_HAS_VALUE_EXPR_P if it has error_mark_node type. (cp_finish_omp_range_for): Don't set DECL_HAS_VALUE_EXPR_P back on decls which have error_mark_node type. 2023-03-01 Marek Polacek PR c++/107574 * constexpr.cc (cxx_eval_constant_expression): Emit an error when a PTRMEM_CST cannot be evaluated. 2023-03-01 Patrick Palka * pt.cc (tsubst_scope): Define. (tsubst_decl) : Call tsubst_scope instead of calling tsubst_scope with tf_qualifying_scope set. (tsubst_qualified_id): Call tsubst_scope instead of calling tsubst with tf_qualifying_scope set. (tsubst_copy): Immediately delegate to tsubst for all TYPE_P trees. Remove tf_qualifying_scope manipulation. : Call tsubst_scope instead of calling tsubst with tf_qualifying_scope set. 2023-03-01 Patrick Palka Jason Merrill PR c++/108219 PR c++/108218 * constexpr.cc (fold_to_constant): Define. (maybe_constant_value): Move up early exit test for unevaluated operands. Try reducing an unevaluated operand to a constant via fold_to_constant. (fold_non_dependent_expr_template): Add early exit test for CONSTANT_CLASS_P nodes. Try reducing an unevaluated operand to a constant via fold_to_constant. * cp-tree.h (fold_to_constant): Declare. 2023-03-01 Jakub Jelinek PR c++/108606 * constexpr.cc (potential_constant_expression_1) : Only recurse on DECL_INITIAL (tmp) if tmp is a VAR_DECL, otherwise just return true. 2023-02-28 Patrick Palka PR c++/108848 * pt.cc (finish_template_variable): Move dependence check to here from ... (lookup_and_finish_template_variable): ... here. * semantics.cc (finish_id_expression_1): Call finish_template_variable sooner, before (and regardless of) the type_dependent_expression_p test. 2023-02-28 Marek Polacek PR c++/108550 * pt.cc (lookup_and_finish_template_variable): Clear tf_partial. 2023-02-20 Marek Polacek PR c++/101073 * constexpr.cc (cxx_eval_call_expression): Replace shortcutting trivial constructor/op= with a checking assert. 2023-02-20 Marek Polacek PR c++/108829 * pt.cc (prepend_one_capture): Set LAMBDA_CAPTURE_EXPLICIT_P. (tsubst_lambda_expr): Pass LAMBDA_CAPTURE_EXPLICIT_P to prepend_one_capture. 2023-02-18 Jason Merrill DR 2518 PR c++/52809 PR c++/53638 PR c++/87389 PR c++/89741 PR c++/92099 PR c++/104041 PR c++/104691 * semantics.cc (finish_static_assert): Don't diagnose in template context. 2023-02-17 Patrick Palka PR c++/108243 PR c++/97553 * cp-gimplify.cc (enum fold_flags): Define. (fold_flags_t): Declare. (cp_fold_data::genericize): Replace this data member with ... (cp_fold_data::fold_flags): ... this. (cp_fold_r): Adjust use of cp_fold_data and calls to cp_fold. (cp_fold_function): Likewise. (cp_fold_maybe_rvalue): Add an internal overload that additionally takes and propagates a fold_flags_t parameter, and define the existing public overload in terms of it. (cp_fold_rvalue): Likewise. (cp_fully_fold_init): Adjust use of cp_fold_data. (fold_cache): Replace with ... (fold_caches): ... this 2-element array of caches. (get_fold_cache): Define. (clear_fold_cache): Adjust. (cp_fold): Add fold_flags_t parameter. Use get_fold_cache. Pass flags to calls to cp_fold, cp_fold_rvalue and cp_fold_maybe_rvalue. : If ff_mce_false is set, fold __builtin_is_constant_evaluated to false and pass mce_false to maybe_constant_value. 2023-02-17 Patrick Palka * constexpr.cc (constexpr_call::manifestly_const_eval): Give it type int instead of bool. (constexpr_ctx::manifestly_const_eval): Give it type mce_value instead of bool. (cxx_eval_builtin_function_call): Adjust after making manifestly_const_eval tri-state. (cxx_eval_call_expression): Likewise. (cxx_eval_binary_expression): Likewise. (cxx_eval_conditional_expression): Likewise. (cxx_eval_constant_expression): Likewise. (cxx_eval_outermost_constant_expr): Likewise. (cxx_constant_value): Likewise. (cxx_constant_dtor): Likewise. (maybe_constant_value): Give manifestly_const_eval parameter type mce_value instead of bool and adjust accordingly. (fold_non_dependent_expr_template): Adjust call to cxx_eval_outermost_constant_expr. (fold_non_dependent_expr): Likewise. (maybe_constant_init_1): Likewise. * constraint.cc (satisfy_atom): Adjust call to maybe_constant_value. * cp-tree.h (enum class mce_value): Define. (maybe_constant_value): Adjust manifestly_const_eval parameter type and default argument. * decl.cc (compute_array_index_type_loc): Adjust call to maybe_constant_value. * pt.cc (convert_nontype_argument): Likewise. 2023-02-16 Patrick Palka PR c++/107773 * cp-tree.h (enum tsubst_flags): New flag tf_qualifying_scope. * decl.cc (make_typename_type): Use lookup_member instead of lookup_field. If tf_qualifying_scope is set, pass want_type=true instead of =false to lookup_member. Generalize format specifier in diagnostic to handle both type and non-type bindings. * pt.cc (tsubst_aggr_type_1): Clear tf_qualifying_scope. Tidy the function. (tsubst_decl) : Set tf_qualifying_scope when substituting USING_DECL_SCOPE. (tsubst): Clear tf_qualifying_scope right away and remember if it was set. Do the same for tf_tst_ok sooner. : Set tf_qualifying_scope when substituting TYPE_CONTEXT. Pass tf_qualifying_scope to make_typename_type if it was set. (tsubst_qualified_id): Set tf_qualifying_scope when substituting the scope. (tsubst_copy): Clear tf_qualifying_scope and remember if it was set. : Set tf_qualifying_scope when substituting the scope. : Pass tf_qualifying_scope to tsubst if it was set. * search.cc (lookup_member): Document default argument. 2023-02-16 Patrick Palka * cp-tree.h: Mechanically drop static from static inline functions via s/^static inline/inline/g. 2023-02-15 Marek Polacek PR c++/106675 * call.cc (joust_maybe_elide_copy): Return false for ck_ambig. 2023-02-10 Marek Polacek PR c++/107079 * call.cc (set_up_extended_ref_temp): Pass var to maybe_constant_init. 2023-02-09 Tobias Burnus * parser.cc (cp_parser_omp_allocate): Parse align clause and check for restrictions. 2023-02-09 Jakub Jelinek PR c++/108698 * mangle.cc (write_expression, write_template_arg): Handle EXCESS_PRECISION_EXPR with REAL_CST operand as write_template_arg_literal on fold_convert of the REAL_CST to EXCESS_PRECISION_EXPR type. 2023-02-06 Patrick Palka PR c++/107461 * cp-tree.h (call_expr_dependent_name): Declare. * pt.cc (iterative_hash_template_arg) : Use call_expr_dependent_name instead of dependent_name. * tree.cc (call_expr_dependent_name): Define. (called_fns_equal): Adjust to take two CALL_EXPRs instead of CALL_EXPR_FNs thereof. Use call_expr_dependent_name instead of dependent_name. (cp_tree_equal) : Adjust call to called_fns_equal. 2023-02-03 Marek Polacek PR c++/108158 * constexpr.cc (cxx_eval_array_reference): Don't replace new_ctx.object. 2023-02-03 Patrick Palka PR c++/107461 * semantics.cc (finish_call_expr): Strip ADDR_EXPR from the selected callee during overload set pruning. 2023-02-03 Patrick Palka PR c++/96745 * class.cc (check_methods): Diagnose an unviable OVERLOAD set for CLASSTYPE_DESTRUCTOR differently from an ambiguous one. Then prune the OVERLOAD to a single function. (check_bases_and_members): Handle CLASSTYPE_DESTRUCTOR being an OVERLOAD when calling deduce_noexcept_on_destructor. Document why it has to be called before check_methods. 2023-02-03 Patrick Palka PR c++/108579 * class.cc (check_methods): Swap order of constraints_satisfied_p and copy/move_fn_p tests. 2023-02-01 Marek Polacek PR c++/107755 * call.cc (build_new_op): Don't call warn_logical_operator when processing a template. 2023-02-01 Jakub Jelinek PR c++/108607 * constexpr.cc (cxx_eval_constant_expression): Handle OMP_* and OACC_* constructs as non-constant. (potential_constant_expression_1): Handle OMP_SCAN and OMP_SCOPE. 2023-02-01 Jason Merrill * class.cc (note_name_declared_in_class): Change from permerror to -Wchanges-meaning pedwarn, forcing -pedantic-errors for most cases. 2023-01-31 Jason Merrill PR c++/108559 * cp-gimplify.cc (any_non_eliding_target_exprs): New. (cp_genericize_init): Check it. 2023-01-31 Marek Polacek PR c++/107593 PR c++/108597 * cp-tree.h (instantiation_dependent_expression_p): Don't declare here. 2023-01-26 Marek Polacek PR c++/105300 * parser.cc: Remove unnecessary forward declarations. (cp_parser_string_literal): New wrapper. (cp_parser_string_literal_common): Renamed from cp_parser_string_literal. Add a bool parameter. Give an error when UDLs are not permitted. (cp_parser_userdef_string_literal): New wrapper. (finish_userdef_string_literal): Renamed from cp_parser_userdef_string_literal. (cp_parser_primary_expression): Call cp_parser_userdef_string_literal instead of cp_parser_string_literal. (cp_parser_linkage_specification): Move a variable declaration closer to its first use. (cp_parser_static_assert): Likewise. (cp_parser_operator): Call cp_parser_userdef_string_literal instead of cp_parser_string_literal. (cp_parser_asm_definition): Move a variable declaration closer to its first use. (cp_parser_asm_specification_opt): Move variable declarations closer to their first use. (cp_parser_asm_operand_list): Likewise. (cp_parser_asm_clobber_list): Likewise. 2023-01-26 Jakub Jelinek PR c++/108503 * parser.cc (cp_convert_omp_range_for): If cp_finish_decomp has been called in !processing_template_decl with processing_template_decl temporarily set, clear DECL_HAS_VALUE_EXPR_P on the vars temporarily. (cp_finish_omp_range_for): And set it back again here. 2023-01-25 Jakub Jelinek PR c++/108525 * mangle.cc (write_closure_type_name): Don't assume all lambda operator() fns are methods. 2023-01-24 Jason Merrill PR c++/108504 * parser.cc (cp_lexer_new_main): Pass C_LEX_STRING_NO_JOIN for first token, too. 2023-01-24 Jason Merrill PR c++/108526 * pt.cc (tsubst_function_decl): Handle static lambda. 2023-01-24 Jakub Jelinek PR c++/108474 * cp-gimplify.cc (cp_fold_r): Revert 2023-01-19 changes. 2023-01-24 Jason Merrill PR c++/107303 PR c++/107329 * cp-gimplify.cc (cp_fold_r) [TARGET_EXPR]: In case of double TARGET_EXPR, keep the outer one instead of the inner one. (maybe_replace_decl): New. 2023-01-23 Jason Merrill PR c++/107267 * cp-gimplify.cc (cp_gimplify_init_expr): Allow unexpected elision of trivial types. 2023-01-23 Marek Polacek PR c++/107797 * cvt.cc (ocp_convert): copy_warning when creating a new COMPOUND_EXPR. * init.cc (build_new_1): Suppress -Wunused-value on compiler-generated COMPOUND_EXPRs. 2023-01-23 Jason Merrill PR c++/108195 * call.cc (build_user_type_conversion_1): Check whether the iterators also find a list ctor. 2023-01-23 Jason Merrill PR c++/108496 * decl.cc (grokdeclarator): Check whether DECL_RESULT is already set. 2023-01-23 Jason Merrill PR c++/53288 DR 1299 * call.cc (extend_ref_init_temps_1): Handle ptrmem expression. 2023-01-19 Jakub Jelinek PR c++/108437 * cp-tree.h (keep_unused_object_arg): Declare. * call.cc (keep_unused_object_arg): No longer static. * tree.cc (build_min_non_dep_op_overload): Handle ARRAY_REF with overload being static member function. 2023-01-19 Jakub Jelinek PR c++/53932 * cp-gimplify.cc (cp_fold_r): During cp_fully_fold_init replace DECL_ANON_UNION_VAR_P VAR_DECLs with their corresponding DECL_VALUE_EXPR. 2023-01-16 Jakub Jelinek PR c++/105593 * decl.cc (cp_finish_decl): Check warning_enabled_at at the DECL_SOURCE_LOCATION (decl) for OPT_Winit_self instead of warn_init_self. 2023-01-14 Jakub Jelinek PR c++/108365 * typeck.cc (cp_build_binary_op): Use may_shorten_divmod for integral division or modulo. 2023-01-13 Jakub Jelinek PR c++/108285 * cvt.cc (cp_convert_and_check): For EXCESS_PRECISION_EXPR use its operand except that for warning purposes use the original EXCESS_PRECISION_EXPR. * call.cc (convert_like_internal): Only look through EXCESS_PRECISION_EXPR when calling cp_convert, not when calling cp_convert_and_check. 2023-01-09 Jakub Jelinek PR c++/105838 PR c++/108047 PR c++/108266 * call.cc (maybe_init_list_as_range): Always return NULL_TREE if processing_template_decl. 2023-01-05 Patrick Palka PR c++/108275 * parser.cc (cp_parser_class_head): Use dk_deferred instead of dk_no_check when parsing the class name. 2023-01-05 Jakub Jelinek PR c++/108286 * semantics.cc (finish_omp_target_clauses): Ignore clauses other than OMP_CLAUSE_MAP. 2023-01-04 Patrick Palka PR c++/108282 * decl2.cc (mark_single_function): Ignore mark_used failure only in a non-SFINAE context rather than in a SFINAE one. 2023-01-04 Jakub Jelinek PR c++/108206 * decl.cc (merge_default_template_args): Return false if either new_parm or old_parm are erroneous. 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