2023-05-29 Release Manager * GCC 11.4.0 released. 2023-05-22 Patrick Palka Backported from master: 2023-03-03 Patrick Palka PR c++/108998 * pt.c (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. 2023-05-22 Patrick Palka Backported from master: 2022-12-15 Patrick Palka PR c++/100295 PR c++/107579 * pt.c (el_data::skip_unevaluated_operands): New data member. (extract_locals_r): If skip_unevaluated_operands is true, don't walk into unevaluated contexts. (extract_local_specs): Walk the pattern twice, first with skip_unevaluated_operands true followed by it set to false. 2023-05-22 Patrick Palka Backported from master: 2022-11-29 Patrick Palka PR c++/107864 * decl.c (function_requirements_equivalent_p): Don't check DECL_TEMPLATE_SPECIALIZATION. * pt.c (determine_specialization): Propagate constraints when specializing a function template too. Simplify by using add_outermost_template_args. 2023-05-22 Patrick Palka Backported from master: 2022-11-03 Patrick Palka PR c++/107179 * constraint.cc (tsubst_requires_expr): Make sure we're not deferring access checks. 2023-05-22 Patrick Palka Backported from master: 2022-03-30 Patrick Palka PR c++/100474 * constraint.cc (diagnose_trait_expr): Handle all remaining traits appropriately. Remove default case. 2023-05-22 Patrick Palka Backported from master: 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. 2023-05-22 Patrick Palka Backported from master: 2022-01-28 Patrick Palka Jason Merrill PR c++/92752 * typeck.c (build_ptrmemfunc): Cast a nullptr constant to the unqualified pointer type not the qualified one. 2023-05-16 Iain Sandoe Backported from master: 2023-04-09 Iain Sandoe * coroutines.cc (coro_rewrite_function_body): Ensure that added bind expressions have scope blocks. 2023-05-16 Iain Sandoe Backported from master: 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. 2023-05-09 Jason Merrill PR c++/106740 PR c++/105852 * decl.c (duplicate_decls): Change non-templated friend check to an assert. * pt.c (tsubst_function_decl): Don't set DECL_TEMPLATE_INFO on non-templated friends. (tsubst_friend_function): Adjust. 2023-05-02 Jakub Jelinek Backported from master: 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. 2023-05-02 Jakub Jelinek Backported from master: 2023-03-20 Jakub Jelinek PR c++/109164 * cp-tree.h (var_needs_tls_wrapper): Declare. * decl2.c (var_needs_tls_wrapper): No longer static. * decl.c (cp_finish_decl): Clear TREE_READONLY on TLS variables for which a TLS wrapper will be needed. 2023-05-02 Jakub Jelinek Backported from master: 2023-03-14 Jakub Jelinek PR c++/109096 * tree.c (record_has_unique_obj_representations): Ignore unnamed bitfields. 2023-05-02 Jakub Jelinek Backported from master: 2023-03-10 Jakub Jelinek PR c++/107558 * decl.c (cp_finish_decl): Don't clear TREE_READONLY on automatic non-aggregate variables just because of -fmerge-all-constants. 2023-05-02 Jakub Jelinek Backported from master: 2023-03-02 Jakub Jelinek PR debug/108716 * cp-gimplify.c (cp_genericize_r) : Set DECL_SOURCE_LOCATION on IMPORTED_DECL to expression location of USING_STMT or input_location. 2023-05-02 Jakub Jelinek Backported from master: 2023-01-24 Jakub Jelinek PR c++/108474 * cp-gimplify.c (cp_fold_r): Handle structured bindings vars like anon union artificial vars. 2023-05-02 Jakub Jelinek Backported from master: 2023-01-14 Jakub Jelinek PR c++/108365 * typeck.c (cp_build_binary_op): For integral division or modulo, shorten if type0 is unsigned, or op0 is cast from narrower unsigned integral type or stripped_op1 is INTEGER_CST other than -1. 2023-05-02 Jakub Jelinek Backported from master: 2023-02-01 Jakub Jelinek PR c++/108607 * constexpr.c (cxx_eval_constant_expression): Handle OMP_* and OACC_* constructs as non-constant. (potential_constant_expression_1): Handle OMP_SCAN. 2023-05-02 Jakub Jelinek Backported from master: 2023-01-19 Jakub Jelinek PR c++/53932 * cp-gimplify.c (cp_fold_r): During cp_fully_fold_init replace DECL_ANON_UNION_VAR_P VAR_DECLs with their corresponding DECL_VALUE_EXPR. 2023-05-02 Jakub Jelinek Backported from master: 2022-12-21 Jakub Jelinek PR c++/108180 * pt.c (tsubst_expr): Don't call cp_finish_decl on DECL_OMP_PRIVATIZED_MEMBER vars. 2023-05-02 Jakub Jelinek Backported from master: 2022-12-15 Jakub Jelinek PR c++/107065 * typeck.c (cp_build_unary_op) : If invert_truthvalue_loc returns obvalue_p, wrap it into NON_LVALUE_EXPR. * parser.c (cp_parser_binary_expression): Don't call warn_logical_not_parentheses if current.lhs is a NON_LVALUE_EXPR of a decl with boolean type. 2023-04-22 Jason Merrill PR c++/105996 * typeck.c (build_ptrmemfunc): Drop 0-offset optimization and location wrappers. 2023-04-22 Jason Merrill PR c++/108975 * lambda.c (prune_lambda_captures): Don't bother in a template. 2023-04-22 Jason Merrill PR c++/69410 * friend.c (do_friend): Handle namespace as scope argument. * decl.c (grokdeclarator): Pass down in_namespace. 2023-04-22 Jason Merrill PR c++/101869 * semantics.c (finish_qualified_id_expr): Don't try to build a pointer-to-member if the scope is an enumeration. 2023-04-22 Jason Merrill PR c++/105406 * coroutines.cc (build_co_await): Handle lvalue 'o'. 2023-04-22 Jason Merrill PR c++/103871 PR c++/98056 * typeck.c (cp_build_modify_expr): Allow array initialization of DECL_ARTIFICIAL variable. 2023-04-22 Jason Merrill PR c++/108468 * pt.c (unify_pack_expansion): Check that TPARMS_PRIMARY_TEMPLATE is non-null. 2023-03-13 Arsen Arsenović PR c++/106188 PR c++/106713 * coroutines.cc (coro_rewrite_function_body): Ensure we have a BIND_EXPR wrapping the function body. 2023-02-15 Marek Polacek Backported from master: 2023-02-15 Marek Polacek PR c++/106675 * call.c (joust_maybe_elide_copy): Return false for ck_ambig. 2022-12-16 Patrick Palka Backported from master: 2021-10-28 Patrick Palka PR c++/102780 PR c++/108138 * constexpr.c (potential_constant_expression_1) : When tf_error isn't set, preemptively check potentiality of the second operand before performing trial evaluation of the first operand. (potential_constant_expression_1): When tf_error is set, first check potentiality quietly and return true if successful, otherwise proceed noisily to give errors. 2022-11-18 Marek Polacek Backported from master: 2022-11-18 Marek Polacek PR c++/104066 * decl.c (grokdeclarator): Check funcdecl_p before complaining about constinit. 2022-11-04 Jakub Jelinek Backported from master: 2022-10-24 Jakub Jelinek PR c++/105774 * constexpr.c (cxx_eval_increment_expression): For signed types that promote to int, evaluate PLUS_EXPR or MINUS_EXPR in int type. 2022-11-04 Jakub Jelinek Backported from master: 2022-08-16 Jakub Jelinek * typeck.c (cp_build_modify_expr): Implement P2327R1 - De-deprecating volatile compound operations. Don't warn for |=, &= or ^= with volatile lhs. * expr.c (mark_use) : Adjust warning wording, leave out simple. 2022-10-24 Marek Polacek Backported from master: 2022-05-27 Marek Polacek PR c++/105725 * parser.c (class_decl_loc_t::add): Check CLASS_TYPE_P. 2022-07-22 Jason Merrill PR c++/106361 * decl.c (move_fn_p): Remove assert. 2022-07-01 Jason Merrill PR c++/106024 * parser.c (cp_parser_lookup_name): Don't look in dependent lambda. 2022-06-24 Jason Merrill PR c++/105925 * decl.c (reshape_init_array_1): Set CONSTRUCTOR_IS_DESIGNATED_INIT here. (reshape_init_class): And here. 2022-06-08 Jason Merrill PR c++/105852 PR c++/105761 * decl.c (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.c (non_templated_friend_p): New. * cp-tree.h (non_templated_friend_p): Declare it. 2022-06-03 Jason Merrill PR c++/105761 * decl.c (duplicate_decls): Don't copy DECL_TEMPLATE_INFO from a hidden friend. 2022-06-03 Jason Merrill PR c++/105795 * constexpr.c (cxx_eval_bare_aggregate): Always call init_subob_ctx. 2022-05-31 Jason Merrill PR c++/102307 * decl.c (check_initializer): Use build_cplus_new in case of constexpr failure. 2022-05-13 Jason Merrill PR c++/101442 * decl.c (cp_finish_decl): Don't pass decl to push_cleanup. * init.c (perform_member_init): Likewise. * semantics.c (push_cleanup): Adjust comment. 2022-05-13 Jason Merrill PR c++/101698 * pt.c (tsubst_baselink): Also check dependent optype. 2022-05-13 Jason Merrill PR c++/65211 * pt.c (tsubst_decl) [TYPE_DECL]: Copy TYPE_ALIGN. 2022-05-13 Patrick Palka Backported from master: 2021-09-27 Patrick Palka PR c++/102479 * pt.c (rewrite_template_parm): Handle single-level tsubst_args. Avoid a tree cycle when assigning the DECL_TEMPLATE_PARMS for a rewritten ttp. (alias_ctad_tweaks): Set current_template_parms accordingly. 2022-05-13 Jason Merrill PR c++/102300 * parser.c (cp_parser_template_name): Use dependent_scope_p. 2022-05-12 Jason Merrill PR c++/102629 * pt.c (gen_elem_of_pack_expansion_instantiation): Clear TEMPLATE_TYPE_PARAMETER_PACK on auto. 2022-05-12 Jason Merrill PR c++/104646 * constexpr.c (maybe_save_constexpr_fundef): Don't do extra checks for defaulted ctors. 2022-05-12 Jason Merrill PR c++/82980 * lambda.c (type_deducible_expression_p): New. (lambda_capture_field_type): Check it. 2022-05-12 Jason Merrill PR c++/105265 PR c++/100838 * call.c (build_user_type_conversion_1): Drop flag_elide_constructors check. (convert_like_internal): Likewise. 2022-05-12 Jason Merrill PR c++/105245 PR c++/100111 * constexpr.c (cxx_eval_store_expression): Build a CONSTRUCTOR as needed in empty base handling. 2022-05-12 Jason Merrill PR c++/104669 * decl.c (decls_match): Compare versions even if not recording. (duplicate_decls): Propagate attributes to alias. * decl2.c (find_last_decl): Give up if versioned. 2022-05-12 Jason Merrill PR c++/102071 * init.c (build_new_1): Include cookie in alignment. Omit constexpr wrapper from alloc_call. 2022-05-12 Jason Merrill PR c++/104142 * decl.c (check_initializer): Check TREE_SIDE_EFFECTS. 2022-05-06 Jakub Jelinek Backported from master: 2022-05-04 Jakub Jelinek * lambda.c: Include decl.h. (maybe_add_lambda_conv_op): Temporarily override deprecated_state to DEPRECATED_SUPPRESS. 2022-04-28 Patrick Palka Backported from master: 2022-04-26 Patrick Palka PR c++/105386 * semantics.c (finish_decltype_type): Pass tf_decltype to instantiate_non_dependent_expr_sfinae. 2022-04-28 Patrick Palka Backported from master: 2022-04-26 Patrick Palka PR c++/105289 PR c++/86193 * pt.c (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. 2022-04-28 Marek Polacek Backported from master: 2022-04-28 Marek Polacek PR c++/90107 * parser.c (cp_parser_class_specifier_1): Accept :: after a class definition. 2022-04-27 Marek Polacek Backported from master: 2022-04-27 Marek Polacek PR c++/105398 * pt.c (uses_template_parms): Return false for any NAMESPACE_DECL. 2022-04-22 Marek Polacek Backported from master: 2022-04-21 Marek Polacek PR c++/105321 * constexpr.c (cxx_eval_logical_expression): Always pass false for lval to cxx_eval_constant_expression. 2022-04-22 Marek Polacek Backported from master: 2022-04-13 Marek Polacek PR c++/97296 * call.c (direct_reference_binding): strip_top_quals when creating a ck_qual. 2022-04-21 Matthias Kretz Backported from master: 2021-12-19 Matthias Kretz * module.cc (trees_out::get_merge_kind): NAMESPACE_DECLs also cannot have a DECL_TEMPLATE_INFO. 2022-04-21 Release Manager * GCC 11.3.0 released. 2022-04-20 Jakub Jelinek Backported from master: 2022-04-19 Jakub Jelinek PR c++/105256 * typeck2.c (process_init_constructor_array, process_init_constructor_record, process_init_constructor_union): Move CONSTRUCTOR_PLACEHOLDER_BOUNDARY flag from CONSTRUCTOR elements to the containing CONSTRUCTOR. 2022-04-12 Patrick Palka Backported from master: 2022-02-16 Patrick Palka PR c++/104507 * constexpr.c (potential_constant_expression_1) : Return false instead of recursing. Assert tf_error isn't set. 2022-04-12 Patrick Palka Backported from master: 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.c (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. 2022-04-12 Patrick Palka Backported from master: 2022-01-28 Patrick Palka PR c++/103341 * decl.c (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. 2022-04-12 Patrick Palka Backported from master: 2022-01-25 Patrick Palka PR c++/101532 PR c++/104225 * decl2.c (mark_used): Don't consider maybe_instantiate_noexcept on a deleted function. 2022-04-12 Patrick Palka Backported from master: 2022-04-12 Patrick Palka PR c++/103105 * pt.c (build_extra_args): Call preserve_args. 2022-04-12 Patrick Palka Backported from master: 2022-02-08 Patrick Palka PR c++/103706 * pt.c (preserve_args): New function. (tsubst_lambda_expr): Use it when setting LAMBDA_EXPR_REGEN_INFO. 2022-04-12 Jason Merrill PR c++/98249 * call.c (build_operator_new_call): Just look in ::. 2022-04-12 Jason Merrill PR c++/100608 * name-lookup.c (check_local_shadow): Use -Wshadow=local if exactly one of 'old' and 'decl' is a type. 2022-04-12 Jason Merrill PR c++/101677 * name-lookup.h (struct cp_binding_level): Add requires_expression bit-field. * parser.c (cp_parser_requires_expression): Set it. (synthesize_implicit_template_parm): Check it. 2022-04-12 Jason Merrill PR c++/105003 PR c++/104008 PR c++/102869 * pt.c (complex_alias_template_r): walk_tree callback, replacing uses_all_template_parms_r, complex_pack_expansion_r. (complex_alias_template_p): Adjust. 2022-04-12 Jason Merrill PR c++/101894 * decl.c (duplicate_decls): Copy DECL_FRIEND_CONTEXT. 2022-04-12 Jason Merrill PR c++/103943 * pt.c (tsubst_qualified_id): Handle getting SCOPE_REF from tsubst_baselink. (instantiation_dependent_scope_ref_p): Check dependent_scope_p. 2022-04-12 Jason Merrill PR c++/101717 * lambda.c (lambda_expr_this_capture): Check all enclosing lambdas for completeness. 2022-04-12 Jason Merrill PR c++/101051 * decl.c (grokdeclarator): Reject conversion with trailing return sooner. 2022-04-08 Patrick Palka Backported from master: 2021-05-27 Patrick Palka PR c++/99893 PR c++/103885 * tree.c (cp_walk_subtrees) : New case. 2022-04-07 Patrick Palka Backported from master: 2022-04-06 Patrick Palka PR c++/105143 * pt.c (do_class_deduction): Check complain before attempting to issue a -Wctad-maybe-unsupported warning. 2022-04-07 Patrick Palka Backported from master: 2022-03-28 Patrick Palka PR c++/105064 * constraint.cc (maybe_substitute_reqs_for): Don't assume DECL_TEMPLATE_INFO is available. 2022-04-07 Patrick Palka Backported from master: 2022-02-17 Patrick Palka PR c++/104565 * semantics.c (finish_compound_literal): Don't perform non-dependent expr folding before calling check_narrowing. 2022-04-07 Patrick Palka Backported from master: 2022-02-03 Patrick Palka PR c++/104079 * pt.c (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.c (fixup_deferred_exception_variants): Clear TYPE_DEPENDENT_P_VALID. 2022-04-07 Patrick Palka Backported from master: 2022-03-26 Patrick Palka PR c++/103455 * call.c (add_builtin_candidate) : Test CLASS_TYPE_P instead of MAYBE_CLASS_TYPE_P. 2022-04-07 Benno Evers Backported from master: 2022-04-03 Benno Evers Iain Sandoe PR c++/103328 * coroutines.cc (morph_fn_to_coro): Reset current_binding_level->blocks. 2022-03-30 Jakub Jelinek Backported from master: 2022-03-30 Jakub Jelinek PR c++/105061 * parser.c (cp_parser_template_introduction): If member_p, temporarily clear parser->colon_corrects_to_scope_p around tentative parsing of nested name specifier. 2022-03-29 Jakub Jelinek Backported from master: 2022-03-26 Jakub Jelinek * parser.c (cp_parser_postfix_expression) : Don't return cp_build_{vec,convert,bit_cast} result right away, instead set postfix_expression to it and break. 2022-03-29 Jakub Jelinek Backported from master: 2022-03-24 Jakub Jelinek PR c++/104994 * constexpr.c (potential_constant_expression_1): Don't diagnose extern thread_local declarations. * decl.c (start_decl): Likewise. 2022-03-29 Jakub Jelinek Backported from master: 2022-03-18 Jakub Jelinek PR c++/104568 * init.c (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.c (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. 2022-03-29 Jakub Jelinek Backported from master: 2022-03-09 Jakub Jelinek PR c/104711 * constexpr.c (cxx_eval_check_shift_p): Use TYPE_OVERFLOW_WRAPS instead of TYPE_UNSIGNED. * typeck.c (cp_build_binary_op): Don't emit -Wshift-negative-value warning if TYPE_OVERFLOW_WRAPS. 2022-03-29 Jakub Jelinek Backported from master: 2022-03-08 Jakub Jelinek PR c++/104806 * search.c (lookup_field_fuzzy_info::fuzzy_lookup_field): Ignore identifiers with space at the end. 2022-03-29 Marek Polacek Backported from master: 2022-03-25 Marek Polacek PR c++/104944 * typeck.c (cxx_sizeof_or_alignof_type): Diagnose alignof(void). (cxx_alignas_expr): Call cxx_sizeof_or_alignof_type with complain == true. 2022-03-29 Marek Polacek Backported from master: 2022-03-24 Marek Polacek PR c++/104284 * decl.c (check_initializer): Don't call build_aggr_init in a template. 2022-03-29 Marek Polacek Backported from master: 2022-03-08 Marek Polacek PR c++/104108 * pt.c (convert_nontype_argument): Recompute value_dependent_expression_p after build_converted_constant_expr. 2022-03-29 Marek Polacek Backported from master: 2022-03-24 Marek Polacek PR c++/102990 * typeck2.c (massage_init_elt): Avoid folding CONSTRUCTORs. 2022-03-29 Marek Polacek Backported from master: 2021-07-14 Marek Polacek PR c++/101371 * constexpr.c (cxx_eval_array_reference): Create a new .object and .ctor for the non-aggregate non-scalar case too when value-initializing. 2022-03-28 Jason Merrill PR c++/104107 PR c++/95036 * pt.c (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. 2022-03-28 Jason Merrill PR c++/99445 PR c++/103769 * tree.c (strip_typedefs): Use build_distinct_type_copy. 2022-03-28 Jason Merrill PR c++/104847 * mangle.c (write_expression): Don't write a union designator when undigested. 2022-03-28 Jason Merrill PR c++/102045 * call.c (make_base_init_ok): Call make_used. 2022-03-28 Jason Merrill PR c++/103968 * pt.c (value_dependent_expression_p): Check has_value_dependent_address for conversion to reference. 2022-03-28 Jason Merrill PR c++/102123 * pt.c (tsubst_copy): Use make_unbound_class_template for rewriting a type template reference. 2022-03-28 Jason Merrill PR c++/103291 * name-lookup.c (push_local_extern_decl_alias): Call determine_visibility. 2022-03-22 Jason Merrill PR c++/103186 * pt.c (defarg_inst): Use tree_vec_map_cache_hasher. (defarg_insts_for): New. (tsubst_default_argument): Adjust. 2022-03-22 Jason Merrill PR c++/103057 * pt.c (tsubst_aggr_type): Call tsubst for alias template specialization. 2022-03-22 Jason Merrill PR c++/59950 * call.c (build_over_call): Use cp_build_indirect_ref. 2022-03-22 Jason Merrill PR c++/101095 * cp-objcp-common.c (cp_common_init_ts): Mark types as types. (cp_tree_size): Remove redundant entries. 2022-03-22 Jason Merrill PR c++/58646 * init.c (build_vec_init): Check for vla element type. 2022-03-22 Jason Merrill PR c++/103337 PR c++/102740 PR c++/103299 PR c++/102538 * decl.c (reshape_init_class): Avoid looking for designator after we found it. (reshape_init_r): Keep looking for designator. 2022-03-22 Jason Merrill PR c++/101767 * decl.c (reshape_init_class): Back out of anon struct if a designator doesn't match. 2022-02-28 Marek Polacek Backported from master: 2022-02-28 Marek Polacek PR c++/104667 * decl2.c (is_late_template_attribute): Cope with a decl without a type. 2022-02-19 Jakub Jelinek Backported from master: 2022-02-14 Jakub Jelinek PR c++/104513 * constexpr.c (potential_constant_expression_1) : Don't punt if returns (target). 2022-02-19 Jakub Jelinek Backported from master: 2022-02-11 Jakub Jelinek PR c++/104472 * constexpr.c (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. 2022-02-18 Richard Biener Backported from master: 2021-05-10 Richard Biener PR middle-end/100464 PR c++/100468 * call.c (set_up_extended_ref_temp): Mark the temporary addressable if the TARGET_EXPR was. 2022-02-08 Patrick Palka Backported from master: 2022-02-08 Patrick Palka PR c++/104410 * constraint.cc (satisfaction_value): Relax assert to accept cv-qualified bool. 2022-01-28 Jason Merrill PR c++/61611 * except.c (in_nested_catch): New. (expand_end_catch_block): Check it. 2022-01-28 Jason Merrill PR c++/103711 * init.c (perform_target_ctor): Select destructor by in_chrg. 2022-01-24 Marek Polacek Backported from master: 2022-01-21 Marek Polacek PR c++/101715 * tree.c (fixup_deferred_exception_variants): Remove duplicate variants after parsing the exception specifications. 2022-01-24 Jakub Jelinek Backported from master: 2022-01-18 Jakub Jelinek PR c++/104055 * constexpr.c (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. 2022-01-24 Jakub Jelinek Backported from master: 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. 2022-01-24 Jakub Jelinek Backported from master: 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. 2022-01-17 Marek Polacek Backported from master: 2022-01-03 Marek Polacek PR c++/103758 * parser.c (cp_parser_decl_specifier_seq): Replace % with %qD. 2022-01-17 Marek Polacek Revert: 2022-01-17 Marek Polacek PR c++/103758 * parser.c (cp_parser_decl_specifier_seq): Replace % with %qD. 2022-01-17 Marek Polacek Backported from master: 2022-01-03 Marek Polacek PR c++/103758 * parser.c (cp_parser_decl_specifier_seq): Replace % with %qD. 2022-01-12 Patrick Palka Backported from master: 2022-01-11 Patrick Palka PR c++/103831 * call.c (build_new_method_call): Consider dependent bases only if 'this' is available. 2022-01-10 Patrick Palka Backported from master: 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. 2022-01-03 Marek Polacek Backported from master: 2021-12-15 Marek Polacek PR c++/102229 * decl.c (check_decltype_auto): New. (grokdeclarator): Call it. * pt.c (do_auto_deduction): Don't check decltype(auto) here. 2021-12-19 Patrick Palka Backported from master: 2021-12-19 Patrick Palka PR c++/103714 * constraint.cc (satisfy_declaration_constraints): Do push_to_top_level and pop_from_top_level around the call to satisfy_normalized_constraints. 2021-12-16 Martin Sebor PR c++/103703 * parser.c (class_decl_loc_t::diag_mismatched_tags): Check for class type before assuming a type is one. 2021-12-15 Patrick Palka Backported from master: 2021-11-29 Patrick Palka PR c++/100493 * parser.c (cp_parser_lambda_introducer): In C++17, don't diagnose a redundant 'this' capture alongside a by-copy capture default unless -pedantic. Move the diagnostic into -Wc++20-extensions and adjust wording accordingly. 2021-12-15 Patrick Palka Backported from master: 2021-11-19 Patrick Palka PR c++/103198 * pt.c (any_template_parm_r): Walk the TREE_TYPE of a dummy object. 2021-12-15 Patrick Palka Backported from master: 2021-11-18 Patrick Palka PR c++/99911 * pt.c (tsubst_copy_and_build) : Don't diagnose name lookup failure if the arguments to an unresolved template name are still dependent. 2021-12-15 Patrick Palka Backported from master: 2021-11-09 Patrick Palka PR c++/98394 PR c++/85846 * parser.c (cp_parser_placeholder_type_specifier): Declare static. Don't override tentative to false when tmpl is a concept-id with empty argument list. Don't emit a "does not constrain a type" error when tentative. 2021-12-15 Patrick Palka Backported from master: 2021-10-28 Patrick Palka PR c++/102933 * parser.c (cp_parser_simple_type_specifier): Adjust diagnostic for using auto in parameter declaration. * pt.c (extract_autos_r): Ignore CTAD placeholders. (extract_autos): Use range-based for. (do_auto_deduction): Use extract_autos only for the concepts TS and not also for standard concepts. (type_uses_auto): Likewise with for_each_template_parm. (check_auto_in_tmpl_args): Just return false outside of the concepts TS. Simplify. 2021-12-07 Marek Polacek Backported from master: 2021-12-07 Marek Polacek PR c++/95009 * typeck.c (is_bitfield_expr_with_lowered_type) : Handle UNARY_PLUS_EXPR, NEGATE_EXPR, NON_LVALUE_EXPR, BIT_NOT_EXPR, P*CREMENT_EXPR too. 2021-12-02 Marek Polacek Backported from master: 2021-12-02 Marek Polacek PR c++/94490 * pt.c (expand_integer_pack): Call instantiate_non_dependent_expr_sfinae. 2021-12-01 Jason Merrill * semantics.c (is_this_parameter): Check DECL_HAS_VALUE_EXPR_P instead of is_capture_proxy. 2021-11-29 Jakub Jelinek Backported from master: 2021-11-19 Jakub Jelinek PR c++/70796 * cp-gimplify.c (cp_gimplify_arg): New function. (cp_gimplify_expr): Use cp_gimplify_arg instead of gimplify_arg, pass true as last argument to it if there are any following arguments in strong evaluation order with side-effects. 2021-11-29 Jakub Jelinek Backported from master: 2021-10-19 Jakub Jelinek PR c++/102786 * constexpr.c (cxx_eval_constant_expression): Don't reject INTEGER_CSTs with type POINTER_TYPE to METHOD_TYPE. 2021-10-20 Jakub Jelinek Backported from master: 2021-10-20 Jakub Jelinek PR c++/102642 * name-lookup.c (push_local_extern_decl_alias): Don't call set_decl_tls_model on error_mark_node. * decl.c (make_rtl_for_nonlocal_decl): Don't call set_user_assembler_name on error_mark_node. * parser.c (cp_parser_oacc_declare): Ignore DECL_LOCAL_DECL_ALIAS if it is error_mark_node. (cp_parser_omp_declare_target): Likewise. 2021-10-08 Jakub Jelinek Backported from master: 2021-10-08 Jakub Jelinek PR c++/102640 * parser.c (handle_omp_declare_target_clause): New function. (cp_parser_omp_declare_target): Use it. 2021-10-07 Patrick Palka Backported from master: 2021-10-07 Patrick Palka PR c++/99904 * pt.c (is_compatible_template_arg): Set processing_template_decl around tsubst_constraint_info. 2021-10-06 Patrick Palka Backported from master: 2021-10-05 Patrick Palka PR c++/102547 * constexpr.c (potential_constant_expression_1): Handle NONTYPE_ARGUMENT_PACK. 2021-10-06 Patrick Palka Backported from master: 2021-09-30 Patrick Palka PR c++/102535 * method.c (is_xible_helper): Don't exit early for multi-arg ctors in C++20. 2021-10-06 Patrick Palka Backported from master: 2021-09-30 Patrick Palka PR c++/95567 * method.c (build_comparison_op): Skip DECL_VIRTUAL_P fields. 2021-10-06 Patrick Palka Backported from master: 2021-09-22 Patrick Palka DR 2446 PR c++/102412 * constexpr.c (cxx_eval_constant_expression) : Check value_dependent_expression_p instead of processing_template_decl. * pt.c (value_dependent_expression_p) : Return true only if any_dependent_template_arguments_p. (instantiation_dependent_r) : Remove this case. : Likewise. 2021-10-06 Patrick Palka Backported from master: 2021-09-16 Patrick Palka PR c++/98486 * constraint.cc (get_normalized_constraints_from_decl): Always look up constraints using the most general template. * decl.c (grokdeclarator): Set constraints on a static data member template. * pt.c (determine_specialization): Check constraints on a variable template. 2021-10-06 Patrick Palka Backported from master: 2021-09-14 Patrick Palka PR c++/102163 * constexpr.c (cxx_eval_call_expression): After evaluating a subobject constructor call for an empty union member, produce a side effect that makes sure the member gets activated. 2021-10-06 Patrick Palka Backported from master: 2021-08-18 Patrick Palka PR c++/101344 PR c++/101803 * cp-tree.h (CONSTRUCTOR_BRACES_ELIDED_P): Define. * decl.c (reshape_init_r): Set it. * pt.c (collect_ctor_idx_types): Recurse into a sub-CONSTRUCTOR iff CONSTRUCTOR_BRACES_ELIDED_P. 2021-10-06 Patrick Palka Backported from master: 2021-08-18 Patrick Palka PR c++/101883 * pt.c (convert_template_argument): Pass LOOKUP_IMPLICIT to do_auto_deduction. 2021-10-05 Jakub Jelinek Backported from master: 2021-10-05 Jakub Jelinek PR c++/102548 * tree.c (apply_identity_attributes): Fix handling of the case where an attribute in the list doesn't affect type identity but some attribute before it does. 2021-10-05 Jakub Jelinek Backported from master: 2021-10-01 Jakub Jelinek PR c++/102496 * name-lookup.c (push_local_extern_decl_alias): Return early even for tls vars with non-dependent type when processing_template_decl. For CP_DECL_THREAD_LOCAL_P vars call set_decl_tls_model on alias. 2021-10-03 Iain Sandoe Backported from master: 2021-09-28 Iain Sandoe PR c++/102454 * coroutines.cc (analyze_fn_parms): Clean up synthetic names for unnamed function params. (morph_fn_to_coro): Do not try to set a guard variable for param DTORs in the ramp, unless we have exceptions active. 2021-10-03 Iain Sandoe Backported from master: 2021-09-14 Iain Sandoe * coroutines.cc (struct param_info): Add copy_var. (build_actor_fn): Use simplified param references. (register_param_uses): Likewise. (rewrite_param_uses): Likewise. (analyze_fn_parms): New function. (coro_rewrite_function_body): Add proxies for the fn parameters to the outer bind scope of the rewritten code. (morph_fn_to_coro): Use simplified version of param ref. 2021-10-03 Iain Sandoe Backported from master: 2021-09-14 Iain Sandoe * coroutines.cc (coro_resume_fn_id, coro_destroy_fn_id, coro_promise_id, coro_frame_needs_free_id, coro_resume_index_id, coro_self_handle_id, coro_actor_continue_id, coro_frame_i_a_r_c_id): New. (coro_init_identifiers): Initialize new name identifiers. (coro_promise_type_found_p): Use pre-built identifiers. (struct await_xform_data): Remove unused fields. (transform_await_expr): Delete code that is now unused. (build_actor_fn): Simplify interface, use pre-built identifiers and remove transforms that are no longer needed. (build_destroy_fn): Use revised field names. (register_local_var_uses): Use pre-built identifiers. (coro_rewrite_function_body): Simplify interface, use pre-built identifiers. Generate proxy vars in the outer bind expr scope for the implementation state that we wish to expose. (morph_fn_to_coro): Adjust comments for new variable names, use pre- built identifiers. Remove unused code to generate frame entries for the implementation state. Adjust call for build_actor_fn. 2021-10-03 Iain Sandoe Backported from master: 2021-09-03 Iain Sandoe * coroutines.cc (register_local_var_uses): Do not mangle frame entries for the outermost scope. Record the outer scope as nesting depth 0. 2021-10-03 Iain Sandoe Backported from master: 2021-09-03 Iain Sandoe * coroutines.cc (coro_build_artificial_var): New. (build_actor_fn): Use var builder, rename vars to use implementation namespace. (coro_rewrite_function_body): Likewise. (morph_fn_to_coro): Likewise. 2021-10-03 Iain Sandoe Backported from master: 2021-09-03 Iain Sandoe * coroutines.cc (transform_local_var_uses): Record frame offset expressions as DECL_VALUE_EXPRs instead of rewriting them. 2021-10-03 Iain Sandoe Backported from master: 2021-09-01 Iain Sandoe * coroutines.cc (build_actor_fn): Add begin/finish clauses to the initial test in the actor function. 2021-10-03 Iain Sandoe Backported from master: 2021-09-01 Iain Sandoe * coroutines.cc (await_statement_walker): Use build_stmt and add_stmt instead of build1 and finish_expr_stmt. 2021-10-03 Jason Merrill Backported from master: 2021-05-07 Jason Merrill * coroutines.cc (build_co_await): Don't call 'rvalue'. (flatten_await_stmt): Simplify initialization. (morph_fn_to_coro): Change 'rvalue' to 'move'. Simplify. 2021-09-15 Jakub Jelinek Backported from master: 2021-09-15 Jakub Jelinek PR c++/88578 PR c++/102295 * typeck2.c (split_nonconstant_init_1): Don't throw away empty initializers of flexible array members if they have non-zero type size. 2021-09-15 Jakub Jelinek Backported from master: 2021-09-14 Jakub Jelinek PR c++/102295 * decl.c (layout_var_decl): For aggregates ending with a flexible array member, add the size of the initializer for that member to DECL_SIZE and DECL_SIZE_UNIT. 2021-09-15 Jakub Jelinek Backported from master: 2021-09-14 Jakub Jelinek PR c++/102305 * method.c (is_xible_helper): Call complete_type on to. 2021-09-07 Jakub Jelinek Backported from master: 2021-09-07 Jakub Jelinek PR c++/100495 * constexpr.c (maybe_save_constexpr_fundef): Save body even for constexpr deleting dtors. (cxx_eval_call_expression): Don't use DECL_CLONED_FUNCTION for deleting dtors. 2021-08-12 Jakub Jelinek Backported from master: 2021-08-04 Jakub Jelinek PR c++/101759 * parser.c (cp_parser_default_argument): Temporarily override parser->omp_declare_simd and parser->oacc_routine to NULL. 2021-08-12 Patrick Palka Backported from master: 2021-08-12 Patrick Palka PR c++/101663 * constexpr.c (cxx_eval_store_expression): Handle the lval=true case in the early exit code path for empty stores with mismatched types. 2021-08-11 Patrick Palka Backported from master: 2021-08-11 Patrick Palka PR c++/101725 DR 2082 * cp-tree.h (unevaluated_p): Return true for REQUIRES_EXPR. * decl.c (local_variable_p_walkfn): Don't walk into unevaluated operands. * parser.c (cp_parser_primary_expression) : Never reject uses of local variables in unevaluated contexts. * tree.c (cp_walk_subtrees) : Increment cp_unevaluated_operand. Use cp_walk_tree directly instead of WALK_SUBTREE to avoid the goto. Use REQUIRES_EXPR_REQS instead of TREE_OPERAND directly. 2021-08-11 Patrick Palka Backported from master: 2021-08-02 Patrick Palka PR c++/100828 * logic.cc (formula::formula): Use emplace_back instead of push_back. (formula::branch): Insert a copy of m_current directly after m_current instead of at the end of the list. (formula::erase): Define. (decompose_formula): Remove. (decompose_antecedents): Remove. (decompose_consequents): Remove. (derive_proofs): Remove. (max_problem_size): Remove. (diagnose_constraint_size): Remove. (subsumes_constraints_nonnull): Rewrite directly in terms of decompose_clause and derive_proof, interleaving decomposition with implication checking. Remove limit on constraint complexity. Use formula::erase to free the current clause before moving on to the next one. 2021-07-28 Release Manager * GCC 11.2.0 released. 2021-07-21 Jakub Jelinek Backported from master: 2021-07-21 Jakub Jelinek PR c++/101516 * semantics.c (finish_omp_reduction_clause): Also call complete_type_or_else and return true if it fails. 2021-07-20 Iain Sandoe Backported from master: 2021-07-19 Iain Sandoe PR c++/95520 * coroutines.cc (struct coroutine_info): Add fields for actor and destroy function decls. (to_ramp): New. (coro_get_ramp_function): New. (coro_get_actor_function): New. (coro_get_destroy_function): New. (act_des_fn): Set up mapping between ramp, actor and destroy functions. (morph_fn_to_coro): Adjust interface to the builder for helper function decls. * cp-tree.h (DECL_ACTOR_FN, DECL_DESTROY_FN, DECL_RAMP_FN, JOIN_STR): New. * mangle.c (write_encoding): Handle coroutine helpers. (write_unqualified_name): Handle lambda coroutine helpers. 2021-07-20 Iain Sandoe Backported from master: 2021-07-09 Iain Sandoe * coroutines.cc (build_actor_fn): Move common code to act_des_fn. (build_destroy_fn): Likewise. (act_des_fn): Build the void return here. Ensure that the source location matches the original function. 2021-07-20 Iain Sandoe Backported from master: 2021-07-09 Iain Sandoe * coroutines.cc (coro_rewrite_function_body): Connect the replacement function block to the block nest correctly. 2021-07-18 Tobias Burnus Backported from master: 2021-05-04 Tobias Burnus * semantics.c (finish_omp_reduction_clause): Accept float + complex for || and && reductions. 2021-07-18 Jakub Jelinek Backported from master: 2021-07-15 Jakub Jelinek PR c++/101443 * cp-gimplify.c (cp_fold): For comparisons with NULLPTR_TYPE operands, fold them right away to true or false. 2021-07-16 Patrick Palka Backported from master: 2021-07-16 Patrick Palka PR c++/101233 * pt.c (alias_ctad_tweaks): Clear cp_unevaluated_operand for substituting DECL_ARGUMENTS. 2021-07-16 Patrick Palka Backported from master: 2021-05-11 Patrick Palka PR c++/100138 * constraint.cc (tsubst_constraint): Set up cp_unevaluated. (satisfy_atom): Set up iloc_sentinel before calling cxx_constant_value. * pt.c (tsubst_pack_expansion): When returning a rebuilt pack expansion, carry over PACK_EXPANSION_LOCAL_P and PACK_EXPANSION_SIZEOF_P from the original pack expansion. 2021-07-13 Patrick Palka Backported from master: 2021-07-09 Patrick Palka PR c++/101181 * constraint.cc (tsubst_requires_expr): Pass complain/in_decl to add_extra_args. * cp-tree.h (add_extra_args): Add complain/in_decl parameters. * pt.c (build_extra_args): Make a copy of args. (add_extra_args): Add complain/in_decl parameters. Enable the code for handling the case where the extra arguments are dependent. (tsubst_pack_expansion): Pass complain/in_decl to add_extra_args. (tsubst_template_args): Handle missing template arguments. (tsubst_expr) : Pass complain/in_decl to add_extra_args. 2021-07-13 Patrick Palka Backported from master: 2021-07-09 Patrick Palka PR c++/101247 * pt.c (any_template_parm_r) : Just walk the DECL_CONTEXT. 2021-07-13 Patrick Palka Backported from master: 2021-07-02 Patrick Palka PR c++/101247 * pt.c (any_template_parm_r) : Rewrite to use common_enclosing_class and to not depend on the TREE_TYPE of outer levels pointing to the corresponding primary template. 2021-07-13 Patrick Palka Backported from master: 2021-07-01 Patrick Palka PR c++/101194 * constexpr.c (cxx_eval_array_reference): When the element type is an empty type and the corresponding element is omitted, just return an empty CONSTRUCTOR instead of attempting value initialization. 2021-07-13 Patrick Palka Backported from master: 2021-06-24 Patrick Palka PR c++/98832 * pt.c (maybe_aggr_guide): Handle alias templates appropriately. 2021-07-13 Patrick Palka Backported from master: 2021-06-24 Patrick Palka PR c++/101182 * constraint.cc (evaluate_requires_expr): Adjust function comment. * cp-gimplify.c (cp_genericize_r) : Move to ... (cp_fold) : ... here. 2021-07-13 Patrick Palka Backported from master: 2021-06-07 Patrick Palka PR c++/100918 * parser.c (cp_parser_lookup_name): Check access of the lookup result before we potentially adjust an injected-class-name to its TEMPLATE_DECL. 2021-07-13 Patrick Palka Backported from master: 2021-05-26 Patrick Palka PR c++/97420 * cvt.c (noexcept_conv_p): Remove redundant checks and simplify. (fnptr_conv_p): Don't call non_reference. Use INDIRECT_TYPE_P instead of TYPE_PTR_P. * pt.c (convert_nontype_argument_function): Look through implicit INDIRECT_REFs before calling strip_fnptr_conv. 2021-07-09 Jason Merrill PR c++/101098 * decl.c (function_requirements_equivalent_p): Only compare trailing requirements on a specialization. 2021-07-09 Jason Merrill PR c++/100838 * call.c (convert_like_internal): Clear tf_no_cleanup when recursing. (build_user_type_conversion_1): Only add ck_rvalue if LOOKUP_ONLYCONVERTING. 2021-07-09 Jason Merrill PR c++/86355 * pt.c (use_pack_expansion_extra_args_p): Don't compare args from the same argument pack. 2021-07-08 Marek Polacek Backported from master: 2021-07-08 Marek Polacek PR c++/101087 * cp-tree.h (unevaluated_p): New. * except.c (check_noexcept_r): Use it. Don't walk into unevaluated operands. 2021-07-07 Jason Merrill Revert: 2020-12-02 Jason Merrill * decl.c (check_initializer): Also look through STMT_EXPR and BIND_EXPR. 2021-07-07 Jason Merrill PR c++/101040 PR c++/97566 * class.c (is_empty_field): Handle null argument. * constexpr.c (cxx_eval_bare_aggregate): Discard initializer for empty field. 2021-06-29 Marek Polacek Backported from master: 2021-06-26 Marek Polacek PR c++/100752 * parser.c (cp_parser_declarator): Pass flags down to cp_parser_declarator. Also pass static_p/member_p. 2021-06-23 Jakub Jelinek Backported from master: 2021-06-21 Jakub Jelinek PR inline-asm/100785 * typeck.c (cxx_mark_addressable): Diagnose trying to make bit-fields addressable. 2021-06-21 Jason Merrill PR c++/101106 * decl.c (duplicate_decls): Condition note on return value of pedwarn. 2021-06-17 Jakub Jelinek Backported from master: 2021-06-06 Jakub Jelinek PR c/100902 * parser.c (cp_parser_omp_target): Call c_omp_adjust_map_clauses even when target is combined with other constructs. 2021-06-17 Jason Merrill * init.c (build_vec_init): Preserve the type of base. 2021-06-16 Jason Merrill PR c++/101078 * pt.c (tsubst_baselink): Update binfos in non-dependent case. 2021-06-16 Jason Merrill PR c++/101029 * init.c (build_vec_init): Shortcut [0] case. 2021-06-10 Patrick Palka Backported from master: 2021-06-10 Patrick Palka PR c++/100946 * constraint.cc (normalize_placeholder_type_constraints): When normalizing a non-templated return-type-requirement, add a dummy level to initial_parms. 2021-06-09 Marek Polacek Backported from master: 2021-06-08 Marek Polacek PR c++/100065 * decl.c (grokdeclarator): Store a value-dependent explicit-specifier even for deduction guides. 2021-06-08 Jason Merrill PR c++/100963 * call.c (perfect_conversion_p): Check check_narrowing. 2021-06-08 Jason Merrill PR c++/91706 * semantics.c (baselink_for_fns): Fix BASELINK_BINFO. 2021-06-08 Jason Merrill * module.cc (duplicate_hash::hash): Comment out. (trees_in::tree_value): Adjust loop counter. 2021-06-07 Patrick Palka Backported from master: 2021-06-03 Patrick Palka PR c++/100862 * pt.c (set_current_access_from_decl): Move to ... * class.c (set_current_access_from_decl): ... here. (handle_using_decl): Use it to propagate the access of the using-enum decl to the copy of the imported enumerator. * cp-tree.h (set_current_access_from_decl): Declare. * decl.c (build_enumerator): Simplify using make_temp_override and set_current_access_from_decl. 2021-06-07 Patrick Palka Backported from master: 2021-06-04 Patrick Palka PR c++/100102 * pt.c (tsubst_function_decl): Remove old code for reducing args when it has excess levels. 2021-06-01 Jason Merrill PR c++/91859 * call.c (build_op_delete_call): Don't set CALL_FROM_NEW_OR_DELETE_P for destroying delete. * init.c (build_delete): Don't clobber before destroying delete. 2021-06-01 Jason Merrill PR c++/100797 PR c++/95719 * call.c (build_over_call): Adjust base_binfo in resolves_to_fixed_type_p case. 2021-05-31 Jakub Jelinek Backported from master: 2021-05-25 Jakub Jelinek PR c++/100666 * call.c (convert_arg_to_ellipsis): For expressions with NULLPTR_TYPE and side-effects, temporarily disable -Wunused-result warning when building COMPOUND_EXPR. 2021-05-28 Patrick Palka Backported from master: 2021-05-26 Patrick Palka PR c++/100502 * typeck.c (finish_class_member_access_expr): Disable ahead of time access checking during the member lookup. 2021-05-20 Jason Merrill PR c++/100489 * decl.c (reshape_init_class): Handle designator for member of anonymous aggregate here. * typeck2.c (process_init_constructor_record): Not here. 2021-05-20 Andreas Krebbel Backported from master: 2021-05-18 Andreas Krebbel PR c++/100281 * cvt.c (cp_convert_to_pointer): Use the size of the target pointer type. * tree.c (cp_build_reference_type): Call cp_build_reference_type_for_mode with VOIDmode. (cp_build_reference_type_for_mode): Rename from cp_build_reference_type. Add MODE argument and invoke build_reference_type_for_mode. (strip_typedefs): Use build_pointer_type_for_mode and cp_build_reference_type_for_mode for pointers and references. 2021-05-20 Jason Merrill PR c++/100634 * pt.c (invalid_nontype_parm_type_p): Return true for COMPLEX_TYPE. 2021-05-20 Jason Merrill PR c++/100659 * cp-tree.h (CONST_DECL_USING_P): Check for null TREE_TYPE. 2021-05-19 Jason Merrill PR c++/100367 PR c++/96299 * method.c (genericize_spaceship): Use fold_build2 for scalar operands. 2021-05-19 Jason Merrill PR c++/100261 * rtti.c (get_tinfo_decl_direct): Check TYPE_TRANSPARENT_AGGR. 2021-05-19 Jason Merrill PR c++/100372 * tree.c (strip_typedefs): Only look at the pattern of a TYPE_PACK_EXPANSION if it's a type. 2021-05-18 Jason Merrill PR c++/100644 * call.c (perfect_candidate_p): An implicitly deleted move is not perfect. 2021-05-18 Jason Merrill PR c++/100205 PR c++/93314 * cp-tree.h (cp_evaluated): Add reset parm to constructor. * parser.c (cp_parser_constant_expression): Change allow_non_constant_p to int. Use cp_evaluated. (cp_parser_initializer_clause): Pass 2 to allow_non_constant_p. * semantics.c (finish_id_expression_1): Don't mess with cp_unevaluated_operand here. 2021-05-03 Patrick Palka Backported from master: 2021-05-03 Patrick Palka PR c++/100362 * parser.c (cp_parser_class_head): Reinstate calls to pushclass and popclass when parsing the base-clause that were removed in r11-6815. 2021-04-29 Jakub Jelinek Backported from master: 2021-04-29 Jakub Jelinek PR c++/100319 * semantics.c (finish_omp_clauses): Fix up check that variable mentioned in detach clause doesn't appear in data-sharing clauses. 2021-04-27 Patrick Palka Backported from master: 2021-04-24 Patrick Palka PR c++/89565 PR c++/93383 PR c++/95291 PR c++/99200 PR c++/99683 * pt.c (do_class_deduction): Punt if the initializer is type-dependent. 2021-04-27 Marek Polacek Backported from master: 2021-04-22 Marek Polacek PR c++/100161 * pt.c (tsubst_copy_and_build) : Test op0 and op1 separately for value- or type-dependence. 2021-04-27 Marek Polacek Backported from master: 2021-04-21 Marek Polacek PR c++/96380 * parser.c (cp_parser_enum_specifier): Don't allow defining types in enum-base. 2021-04-27 Jakub Jelinek * module.cc: Remove #error that triggers if DEV-PHASE is empty. 2021-04-27 Release Manager * GCC 11.1.0 released. 2021-04-19 Marek Polacek PR c++/97536 * decl.c (grokvardecl): Given an error when a concept is not defined at namespace scope. 2021-04-16 Jakub Jelinek PR c++/100111 * constexpr.c (cxx_eval_store_expression): Don't add CONSTRUCTORs for empty classes into *valp when types don't match even when *valp is NULL. 2021-04-16 Marek Polacek PR c++/99803 * decl.c (make_typename_type): Give an error and return when name is is_overloaded_fn. * parser.c (cp_parser_class_name): Don't check is_overloaded_fn before calling make_typename_type. 2021-04-16 Patrick Palka PR c++/99700 * constexpr.c (reduced_constant_expression_p): For array CONSTRUCTORs, use a dedicated loop that additionally verifies the CONSTRUCTOR spans the entire array. 2021-04-16 Jakub Jelinek PR c++/99850 * parser.c (cp_parser_constraint_requires_parens) : If lambda_p, return pce_ok instead of pce_maybe_postfix. 2021-04-16 Jakub Jelinek PR c++/99833 * pt.c (extract_locals_r): When handling DECL_EXPR of a structured binding, add to data.internal also all corresponding structured binding decls. 2021-04-16 Jason Merrill PR c++/100079 * cp-tree.h (first_field): Declare. * mangle.c (range_expr_nelts): New. (write_expression): Improve class NTTP mangling. * pt.c (get_template_parm_object): Clear TREE_HAS_CONSTRUCTOR. * tree.c (zero_init_expr_p): Improve class NTTP handling. * decl.c: Adjust comment. 2021-04-15 Jason Merrill PR c++/80456 * call.c (build_new_method_call_1): Check again for side-effects with a volatile object. 2021-04-15 Jason Merrill PR c++/100101 PR c++/99583 * pt.c (find_parameter_packs_r) [FUNCTION_TYPE]: Walk into TYPE_RAISES_EXCEPTIONS here. * tree.c (cp_walk_subtrees): Not here. 2021-04-15 Jason Merrill PR c++/100091 PR c++/99478 * parser.c (cp_parser_default_type_template_argument): Set parser->local_variables_forbidden_p. 2021-04-15 Richard Sandiford PR c++/98852 * typeck.c (merge_type_attributes_from): New function. (cp_common_type): Use it for vector types. 2021-04-14 Jason Merrill PR c++/100078 PR c++/93085 * pt.c (uses_outer_template_parms): Also look at default template argument. 2021-04-14 Jason Merrill PR c++/93314 * semantics.c (finish_id_expression_1): Clear cp_unevaluated_operand for a non-static data member in a constant-expression. 2021-04-14 Patrick Palka PR c++/83476 PR c++/99885 * pt.c (deducible_expression): Look through implicit INDIRECT_REFs as well. 2021-04-14 Jason Merrill PR c++/99478 * parser.c (cp_parser_lambda_expression): Reject lambda in template parameter type. 2021-04-14 Jason Merrill PR c++/90674 * decl.c (duplicate_decls): Don't propagate DECL_INITIALIZED_IN_CLASS_P to a specialization. 2021-04-14 Jason Merrill PR c++/88742 PR c++/49951 PR c++/58123 * semantics.c (set_cleanup_locs): New. (do_poplevel): Call it. * parser.c (cp_parser_compound_statement): Consume the } before finish_compound_stmt. 2021-04-13 Jason Merrill PR c++/100032 * pt.c (get_underlying_template): Compare TYPE_QUALS. 2021-04-13 Jason Merrill PR c++/100054 PR c++/90479 * init.c (get_nsdmi): Do more context adjustment for local classes. 2021-04-13 Patrick Palka PR c++/99008 * pt.c (do_class_deduction): Reject alias CTAD in C++17 mode rather than issuing a pedwarn. * typeck2.c (build_functional_cast_1): Handle CTAD uniformly for consistent diagnostics. 2021-04-13 Jason Merrill PR c++/91933 * class.c (build_base_path): Shortcut simple non-pointer case. 2021-04-13 Eric Botcazou * module.cc (ordinary_loc_of): Test LINEMAPS_MACRO_LOWEST_LOCATION of the linemap. (module_state::write_location): Likewise. 2021-04-13 Patrick Palka PR c++/97134 * pt.c (do_class_deduction): Look through EXPR_PACK_EXPANSION when checking if the initializer is an equivalent class placeholder template parameter. 2021-04-13 Patrick Palka PR c++/99961 PR c++/99994 * constraint.cc (satisfy_normalized_constraints): Set cp_unevaluated. * parser.c (cp_parser_concept_definition): Likewise. (cp_parser_requires_clause_opt): Likewise. 2021-04-12 Jason Merrill PR c++/93085 * pt.c (uses_outer_template_parms): Handle non-type and template template parameters specifically. 2021-04-11 Jason Merrill PR c++/97974 * decl.c (fixup_anonymous_aggr): Prune all functions from CLASSTYPE_MEMBER_VEC. 2021-04-10 Jason Merrill PR c++/98800 PR c++/97399 * parser.c (cp_parser_direct_declarator): Don't inject_this_parameter if static_p. (cp_parser_omp_var_list_no_open): Parse 'this' even if current_class_ptr isn't set for a better diagnostic. 2021-04-10 Jason Merrill PR c++/99180 PR c++/93295 PR c++/93867 PR c++/99118 PR c++/96873 * pt.c (alias_ctad_tweaks): Handle failure better. 2021-04-10 Jason Merrill PR c++/100006 * pt.c (find_parameter_packs_r) [TAG_DEFN]: Look into bases. 2021-04-09 Patrick Palka * cp-tree.h (LAMBDA_EXPR_REGENERATED_FROM) (LAMBDA_EXPR_REGENERATING_TARGS): Replace these with ... (LAMBDA_EXPR_REGEN_INFO): ... this. (tree_lambda_expr::regenerated_from) (tree_lambda_expr::regenerating_targs): Replace these with ... (tree_lambda_expr::regen_info): ... this. * constraint.cc (satisfy_declaration_constraints): Adjust accordingly. * lambda.c (build_lambda_expr): Likewise. * pt.c (regenerated_lambda_fn_p): Likewise. (most_general_lambda): Likewise. (tsubst_lambda_expr): Likewise. 2021-04-09 Marek Polacek PR c++/99806 * parser.c (cp_parser_member_declaration): Call cp_parser_save_default_args even for function templates. Use STRIP_TEMPLATE on the declaration we're passing. 2021-04-08 Patrick Palka PR c++/99874 * constraint.cc (get_normalized_constraints_from_decl): Handle regenerated lambdas. (satisfy_declaration_constraints): Likewise. Check for dependent args later. * cp-tree.h (LAMBDA_EXPR_INSTANTIATED): Replace with ... (LAMBDA_EXPR_REGENERATED_FROM): ... this. (LAMBDA_EXPR_REGENERATING_TARGS): New. (tree_lambda_expr::regenerated_from): New data member. (tree_lambda_expr::regenerating_targs): New data member. (add_to_template_args): Declare. (regenerated_lambda_fn_p): Likewise. (most_general_lambda): Likewise. * lambda.c (build_lambda_expr): Set LAMBDA_EXPR_REGENERATED_FROM and LAMBDA_EXPR_REGENERATING_TARGS. * pt.c (add_to_template_args): No longer static. (tsubst_function_decl): Unconditionally propagate constraints on the substituted function decl. (instantiated_lambda_fn_p): Rename to ... (regenerated_lambda_fn_p): ... this. Check LAMBDA_EXPR_REGENERATED_FROM instead of LAMBDA_EXPR_INSTANTIATED. (most_general_lambda): Define. (enclosing_instantiation_of): Adjust after renaming instantiated_lambda_fn_p. (tsubst_lambda_expr): Don't set LAMBDA_EXPR_INSTANTIATED. Set LAMBDA_EXPR_REGENERATED_FROM and LAMBDA_EXPR_REGENERATING_TARGS. Don't substitute or set constraints on the regenerated lambda. 2021-04-08 Patrick Palka PR c++/97679 * pt.c (build_deduction_guide): Document OUTER_ARGS. Substitute them into the propagated constraints. 2021-04-08 Jason Merrill PR c++/91849 * call.c (convert_like_internal): Improve reference diagnostic. 2021-04-08 Jakub Jelinek PR c++/99859 * constexpr.c (addr_of_non_const_var): New function. (cxx_bind_parameters_in_call): Set *non_constant_args to true even if cp_walk_tree on arg with addr_of_non_const_var callback returns true. 2021-04-08 Jason Merrill PR c++/94529 * pt.c (determine_specialization): Improve diagnostic. 2021-04-08 Marek Polacek PR c++/99844 * decl.c (build_explicit_specifier): Call check_for_bare_parameter_packs. * except.c (build_noexcept_spec): Likewise. 2021-04-07 Jason Merrill PR c++/41723 * parser.c (cp_parser_class_name): Check dependent_scope_p. 2021-04-07 Jason Merrill PR c++/52625 * pt.c (maybe_process_partial_specialization): Check DECL_SELF_REFERENCE_P. 2021-04-07 Jason Merrill PR c++/92918 * name-lookup.c (push_class_level_binding_1): Do overload a new function with a previous using-declaration. 2021-04-06 Jason Merrill PR c++/96673 * init.c (get_nsdmi): Don't defer access checking. 2021-04-06 Jason Merrill PR c++/99901 * decl.c (cp_finish_decl): mark_needed an implicitly inline static data member with an out-of-class redeclaration. 2021-04-06 Jason Merrill PR c++/91241 * mangle.c (write_compact_number): Add sanity check. (write_local_name): Use list_length for parm number. 2021-04-06 Patrick Palka PR c++/99899 * pt.c (do_auto_deduction): Don't exit early when deducing the array type of a structured binding. Also handle adc_decomp_type during constraint checking. 2021-04-05 Jason Merrill PR c++/96311 * typeck.c (check_return_expr): Call mark_exp_read in dependent case. 2021-04-05 Jason Merrill PR c++/98440 * typeck.c (build_reinterpret_cast_1): Don't perform temporary materialization. 2021-04-05 Jason Merrill PR c++/95317 * pt.c (lookup_template_class_1): Do tsubst_enum when tsubsting a generic lambda. 2021-04-05 Jason Merrill PR c++/95870 * pt.c (enclosing_instantiation_of): Compare DECL_SOURCE_LOCATION if there is no enclosing non-lambda function. 2021-04-05 Nathan Sidwell PR c++/99380 * module.cc (name_pending_imports): Drop 'atend' parm. Don't query export when not needed. (preprocess_module, preprocessed_module): Adjust. 2021-04-05 Jason Merrill PR c++/99066 * pt.c (mark_decl_instantiated): Set DECL_EXTERNAL. 2021-04-05 Jason Merrill PR c++/99201 * pt.c (class el_data): Add visited field. (extract_local_specs): Pass it to cp_walk_tree. (extract_locals_r): Walk into the body of a lambda. 2021-04-05 Jason Merrill * ptree.c (cxx_print_decl): Check DECL_MODULE_IMPORT_P on template result. 2021-04-04 Jason Merrill PR c++/99643 * typeck2.c (massage_init_elt): Don't strip TARGET_EXPR. 2021-04-03 Marek Polacek PR c++/91416 * parser.c: Create a GC root for attributes in a decl specifier. (cp_parser_type_specifier): Push/pop ->attributes onto/from it. 2021-04-03 Jason Merrill PR c++/91217 * pt.c (tsubst_lambda_expr): Skip the body block from DECL_SAVED_TREE. 2021-04-03 Jason Merrill PR c++/90664 * cvt.c (can_convert_qual): Check fnptr_conv_p. 2021-04-03 Jason Merrill PR c++/97900 * pt.c (regenerate_decl_from_template): tsubst_decl the parms. 2021-04-02 Patrick Palka PR c++/99869 * parser.c (do_range_for_auto_deduction): Pass adc_variable_type to do_auto_deduction. 2021-04-02 Patrick Palka PR c++/99586 * semantics.c (finish_compound_literal): Check template_placeholder_p instead of type_uses_auto. 2021-04-02 Jason Merrill PR c++/97938 * cp-tree.h (PACK_EXPANSION_AUTO_P): New. * lambda.c (add_capture): Set it. * pt.c (tsubst_pack_expansion): Handle it. 2021-04-02 Nathan Sidwell * cp-tree.h (lang_decl_base): Correct module flag comment. * module.cc (trees_in::assert_definition): Break out not_tmpl var. (trees_out::lang_decl_bools): Do not write purview for header units. 2021-04-01 Marek Polacek PR c++/99831 * method.c (defaulted_late_check): ++ and -- function_depth around the call to synthesize_method. * pt.c: Remove the saved_trees global. 2021-04-01 Jason Merrill PR c++/99583 PR c++/99584 * tree.c (cp_walk_subtrees) [FUNCTION_TYPE]: Walk into TYPE_RAISES_EXCEPTIONS. 2021-04-01 Iain Sandoe * mapper-client.cc (INCLUDE_MAP): New; require map to be included from system.h. * mapper-resolver.cc (INCLUDE_MAP): Likewise. 2021-04-01 Jason Merrill PR c++/98481 * mangle.c (write_expression): Adjust. * class.c (find_abi_tags_r): Disable PR98481 fix for ABI v14. (mark_abi_tags_r): Likewise. 2021-04-01 Nathan Sidwell PR c++/99283 * module.cc (trees_out::decl_node): Adjust importedness reference assert. (module_state::intercluster_seed): New. Seed both imports and inter-cluster references. Broken out of ... (module_state::write_cluster): ... here. Call it. 2021-03-31 Jason Merrill PR c++/99445 * tree.c (strip_typedefs): Handle TYPE_PACK_EXPANSION. 2021-03-31 Patrick Palka PR c++/88115 * mangle.c (write_expression): Adjust the mangling of __alignof__. 2021-03-31 Patrick Palka PR c++/99815 * pt.c (placeholder_type_constraint_dependent_p): Expand argument packs to separate the first non-pack argument from the rest. 2021-03-30 Nathan Sidwell PR c++/99283 * module.cc (dumper::operator): Make less brittle. (trees_out::core_bools): VAR_DECLs always have a context. (trees_out::key_mergeable): Use same_type_p for asserting. (trees_in::read_var_def): Propagate DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P. 2021-03-30 Jakub Jelinek PR c++/99790 * cp-gimplify.c (cp_gimplify_expr): Handle PTRMEM_CST. 2021-03-26 Marek Polacek PR c++/98352 * method.c (implicitly_declare_fn): Pass &raises to synthesized_method_walk. 2021-03-26 Nathan Sidwell PR c++/99283 * cp-tree.h (DECL_MODULE_CHECK): Ban TEMPLATE_DECL. (SET_TYPE_TEMPLATE_INFO): Restore Alias template setting. * decl.c (duplicate_decls): Remove template_decl module flag propagation. * module.cc (merge_kind_name): Add alias tmpl spec as a thing. (dumper::impl::nested_name): Adjust for template-decl module flag change. (trees_in::assert_definition): Likewise. (trees_in::install_entity): Likewise. (trees_out::decl_value): Likewise. Remove alias template separation of template and type_decl. (trees_in::decl_value): Likewise. (trees_out::key_mergeable): Likewise, (trees_in::key_mergeable): Likewise. (trees_out::decl_node): Adjust for template-decl module flag change. (depset::hash::make_dependency): Likewise. (get_originating_module, module_may_redeclare): Likewise. (set_instantiating_module, set_defining_module): Likewise. * name-lookup.c (name_lookup::search_adl): Likewise. (do_pushdecl): Likewise. * pt.c (build_template_decl): Likewise. (lookup_template_class_1): Remove special alias_template handling of DECL_TI_TEMPLATE. (tsubst_template_decl): Likewise. 2021-03-26 Jakub Jelinek PR c++/99705 * tree.c (bot_manip): Remap artificial automatic temporaries mentioned in DECL_EXPR or in BIND_EXPR_VARS. 2021-03-25 Jakub Jelinek PR c++/99672 * parser.c (cp_parser_postfix_expression): For calls, create combined_loc and temporarily set input_location to it before calling finish_call_expr. 2021-03-25 Marek Polacek PR c++/94751 * call.c (build_over_call): Maybe call mark_used in case deduce_inheriting_ctor fails and return error_mark_node. * cp-tree.h (deduce_inheriting_ctor): Adjust declaration. * method.c (deduce_inheriting_ctor): Return bool if the deduction fails. (implicitly_declare_fn): If raises is error_mark_node, call synthesized_method_walk with diag being true. 2021-03-25 Jakub Jelinek PR c++/99745 * decl2.c (grokbitfield): Diagnose bitfields containing bare parameter packs and don't set DECL_BIT_FIELD_REPRESENTATIVE in that case. 2021-03-25 Marek Polacek PR c++/99331 * call.c (build_converted_constant_expr_internal): Don't emit -Wconversion warnings. 2021-03-25 Jakub Jelinek PR c++/99565 * call.c (build_conditional_expr_1): Pass OEP_ADDRESS_OF_SAME_FIELD to operand_equal_p. * cvt.c (convert_to_void): Preserve location_t on COND_EXPR or or COMPOUND_EXPR. 2021-03-23 Nathan Sidwell PR c++/99283 * name-lookup.c (check_module_override): Set global or partition DUP on the binding vector. 2021-03-23 Marek Polacek PR c++/99318 * decl2.c (cp_warn_deprecated_use_scopes): Only call cp_warn_deprecated_use when decl is a namespace, class, or enum. 2021-03-23 Nathan Sidwell PR c++/99239 * decl.c (duplicate_decls): Remove assert about maybe-imported artificial decls. 2021-03-23 Jakub Jelinek PR c++/99650 * decl.c (cp_finish_decomp): Diagnose void initializers when using tuple_element and get. 2021-03-22 Nathan Sidwell PR c++/99480 * module.cc (depset::hash::make_dependency): Propagate flags for partial specialization. (module_may_redeclare): Handle partial specialization. 2021-03-22 Nathan Sidwell PR c++/99425 * cp-tree.h (map_context_from, map_context_to): Delete. (add_mergeable_specialization): Add is_alias parm. * pt.c (add_mergeable_specialization): Add is_alias parm, add them. * module.cc (map_context_from, map_context_to): Delete. (trees_in::decl_value): Add specializations later, adjust call. Drop useless alias lookup. Set duplicate fn parm context. (check_mergeable_decl): Drop context mapping. (trees_in::is_matching_decl): Likewise. (trees_in::read_function_def): Drop parameter context adjustment here. 2021-03-22 Martin Liska PR c++/99687 * module.cc (fini_modules): Call vec_free instead of delete. 2021-03-20 Jakub Jelinek PR debug/99230 * cp-gimplify.c (cp_genericize_r) : Remove special code, instead call c_genericize_control_stmt. 2021-03-19 Jakub Jelinek PR c++/99456 * constexpr.c (cxx_eval_constant_expression): For CONVERT_EXPR from INDIRECT_TYPE_P to ARITHMETIC_TYPE_P, when !ctx->manifestly_const_eval don't diagnose it, set *non_constant_p nor return t. 2021-03-19 Marek Polacek PR c++/99500 * parser.c (cp_parser_requirement_parameter_list): Handle error_mark_node. 2021-03-18 Marek Polacek * pt.c (tsubst_copy_and_build) : Remove. 2021-03-18 Marek Polacek * pt.c (tsubst_copy_and_build): Add assert. 2021-03-18 Iain Sandoe PR objc++/49070 * parser.c (cp_debug_parser): Add Objective-C++ message state flag. (cp_parser_nested_name_specifier_opt): Allow colon to terminate an assignment-expression when parsing Objective- C++ messages. (cp_parser_objc_message_expression): Set and clear message parsing state on entry and exit. * parser.h (struct cp_parser): Add a context flag for Objective-C++ message state. 2021-03-18 Martin Liska PR c++/99617 * coroutines.cc (struct var_nest_node): Init then_cl and else_cl to NULL. 2021-03-17 Marek Polacek PR c++/97973 * call.c (conv_unsafe_in_template_p): New. (convert_like): Use it. 2021-03-17 Anthony Sharp Jason Merrill * semantics.c (get_class_access_diagnostic_decl): New function that examines special cases when a parent class causes a private access failure. (enforce_access): Slightly modified to call function above. 2021-03-16 Jason Merrill * tree.c (cp_tree_equal): Use real_identical. 2021-03-16 Jakub Jelinek PR c++/99613 * decl.c (expand_static_init): For thread guards, call __cxa_atexit before calling __cxa_guard_release rather than after it. Formatting fixes. 2021-03-16 Martin Liska Jason Merrill PR c++/99108 * call.c (get_function_version_dispatcher): Handle DECL_LOCAL_DECL_P. * decl.c (maybe_version_functions): Likewise. (maybe_mark_function_versioned): New. * name-lookup.c (push_local_extern_decl_alias): No longer static. * name-lookup.h (push_local_extern_decl_alias): Adjust. 2021-03-16 Nathan Sidwell PR c++/99496 * module.cc (trees_out::decl_value): Adjust typedef streaming, indicate whether it is a dependent alias. (trees_in::decl_value): Likewise. Set as dependent alias, if it is one. 2021-03-15 Iain Sandoe PR c++/99047 * coroutines.cc (expand_one_await_expression): If the await_ready() expression is not a boolean then convert it as required. 2021-03-15 Iain Sandoe PR c++/98704 * coroutines.cc (build_actor_fn): Make destroy index 1 correspond to the abnormal unhandled_exception() exit. Substitute the proxy for the resume index. (coro_rewrite_function_body): Arrange to reset the resume index and make done = true for a rethrown exception from unhandled_exception (). (morph_fn_to_coro): Adjust calls to build_actor_fn and coro_rewrite_function_body. 2021-03-15 Iain Sandoe PR c++/98480 * coroutines.cc (replace_continue): Rewrite continue into 'goto label'. (await_statement_walker): Handle await expressions in the initializer, condition and iteration expressions of for loops. 2021-03-15 Iain Sandoe PR c++/96749 * coroutines.cc (flatten_await_stmt): Allow for the case where a target expression variable only has uses in the second part of a compound expression. (maybe_promote_temps): Avoid emiting empty statements. 2021-03-15 Tobias Burnus PR c++/99509 * decl.c (cp_finish_decl): For 'omp declare target implicit' vars, ensure that the varpool node is marked as offloadable. 2021-03-12 Nathan Sidwell PR c++/99238 * module.cc (depset::hash::add_binding_entity): Assert not visited. (depset::add::add_specializations): Likewise. * name-lookup.c (name_lookup::dedup): New. (name_lookup::~name_lookup): Assert not deduping. (name_lookup::restore_state): Likewise. (name_lookup::add_overload): Replace outlined code with dedup call. (name_lookup::add_value): Likewise. (name_lookup::search_namespace_only): Likewise. (name_lookup::adl_namespace_fns): Likewise. (name_lookup::adl_class_fns): Likewise. (name_lookup::search_adl): Likewise. Add clearing dedup call. (name_lookup::search_qualified): Likewise. (name_lookup::search_unqualified): Likewise. 2021-03-12 Jakub Jelinek PR c++/99507 * call.c (build_over_call): For immediate evaluation of functions that return references, undo convert_from_reference effects before calling cxx_constant_value and call convert_from_reference afterwards. 2021-03-11 Nathan Sidwell PR c++/99248 * name-lookup.c (lookup_elaborated_type_1): Access slot not bind when there's a binding vector. * ptree.c (cxx_print_xnode): Lazy flags are no longer a thing. 2021-03-11 Nathan Sidwell PR c++/99528 * module.cc (enum merge_kind): Delete MK_type_tmpl_spec, MK_decl_tmpl_spec. (trees_in::decl_value): Adjust add_mergeable_specialization call. (trees_out::get_merge_kind): Adjust detecting a partial template instantiation. (trees_out::key_mergeable): Adjust handling same. (trees_in::key_mergeabvle): Likewise. 2021-03-10 Nathan Sidwell PR c++/99423 * module.cc (post_load_processing): Assert not gcable. (laxy_load_pendings): Extend no-gc region around post_load_processing. 2021-03-10 Nathan Sidwell PR c++/99508 * decl.c (make_rtl_for_nonlocal_decl): Propagate local-extern's assembler name to the ns alias. 2021-03-09 Jakub Jelinek PR c++/99459 * coroutines.cc (build_co_await): Look through NOP_EXPRs in build_special_member_call return value to find the CALL_EXPR. Simplify. 2021-03-09 Nathan Sidwell PR c++/99472 * parser.c (cp_parser_diagnose_invalid_type_name): Clarify that C++20 does not yet imply modules. 2021-03-08 Nathan Sidwell PR c++/99436 * name-lookup.c (get_cxx_dialect_name): Add cxx23. 2021-03-08 Nathan Sidwell * lex.c (module_token_filter::resume): Ignore module-decls inside header-unit. * parser.c (cp_parser_module_declaration): Reject in header-unit. 2021-03-08 Nathan Sidwell PR c++/99285 * cp-tree.h (match_mergeable_specialization) (add_mergeable_specialization): Adjust parms. * module.cc (trees_in::decl_value): Adjust add_mergeable_specialization calls. (trees_out::key_mergeable): Adjust match_mergeable_specialization calls. (specialization_add): Likewise. * pt.c (match_mergeable_specialization): Do not insert. (add_mergeable_specialization): Add to hash table here. 2021-03-06 Patrick Palka Jakub Jelinek PR c++/99287 * constexpr.c (cxx_eval_increment_expression): Pass lval when evaluating the MODIFY_EXPR, and update 'mod' with the result of this evaluation. Check *non_constant_p afterwards. For prefix ops, just return 'mod'. 2021-03-06 Patrick Palka Jakub Jelinek PR c++/96330 * pt.c (tsubst_copy) : Rename local variable 'fn' to 'tmpl'. Handle a variable template-id by calling lookup_template_variable. 2021-03-06 Patrick Palka PR c++/99365 * pt.c (unify) : Pass targs as outer_targs to do_auto_deduction. (placeholder_type_constraint_dependent_p): Define. (do_auto_deduction): When processing_template_decl != 0 and context is adc_unify and we have constraints, pretend the constraints are satisfied instead of punting. Otherwise don't punt unless placeholder_type_constraint_dependent_p holds. Add some clarifying sanity checks. Add a hack to add missing outermost template levels to outer_args before checking satisfaction. Don't substitute outer_targs into type if it's already been done. 2021-03-05 Marek Polacek PR c++/99374 * call.c (standard_conversion): When converting pointers to member, don't return NULL when the bases are equivalent but incomplete. 2021-03-05 Marek Polacek PR c++/99120 * name-lookup.c (check_local_shadow): Check if the type of decl is non-null before checking TYPE_PTR*. 2021-03-05 Nathan Sidwell PR c++/99245 * module.cc (module_state::write_cluster): Relax binding assert. 2021-03-05 Nathan Sidwell PR c++/99377 * pt.c (instantiate_decl): Call set_instantiating_module. 2021-03-05 Iain Sandoe PR c++/98118 * coroutines.cc (build_co_await): Use type_build_ctor_call() to determine cases when a CTOR needs to be built. (flatten_await_stmt): Likewise. (morph_fn_to_coro): Likewise. 2021-03-05 Iain Sandoe PR c++/95616 * coroutines.cc (coro_diagnose_throwing_fn): New helper. (coro_diagnose_throwing_final_aw_expr): New helper. (build_co_await): Diagnose throwing final await expression components. (build_init_or_final_await): Diagnose a throwing promise final_suspend() call. 2021-03-05 Iain Sandoe PR c++/95615 * coroutines.cc (struct param_info): Track parameter copies that need a DTOR. (coro_get_frame_dtor): New helper function factored from build_actor(). (build_actor_fn): Use coro_get_frame_dtor(). (morph_fn_to_coro): Track parameters that need DTORs on exception, likewise the frame promise and the return object. On exception, run the DTORs for these, destroy the frame and then rethrow the exception. 2021-03-05 Nathan Sidwell PR c++/99389 * pt.c (instantiate_class_template_1): Set instantiating module here. 2021-03-05 Tobias Burnus PR c/99137 * parser.c (cp_parser_oacc_clause_async): Reject comma expressions. 2021-03-04 Jakub Jelinek PR c++/88146 PR c++/99362 * cvt.c (convert_to_void): Revert 2019-10-17 changes. Clarify comment. 2021-03-04 Nathan Sidwell PR c++/99170 * module.cc (class uintset): Delete. (typedef attached_map_t): A hash map. (attached_table): Use attached_map_t. Adjust uses ... (trees_out::decl_value, trees_in::decl_value): ... here ... (trees_out::key_mergeable): ... here ... (trees_in::key_mergeable): ... here ... (maybe_attach_decl): ... here ... (direct_import): ... and here. 2021-03-04 Nathan Sidwell PR c++/99170 * cp-tree.h * lex.c (cxx_dup_lang_specific_decl): Adjust for module_attached_p rename. * module.cc (class pending_key): New. (default_hash_traits): New specialization. (pending_map_t): New typedef. (pending_table): Replace old table. (trees_out::lang_decl_bools): Adjust. (trees_in::lang_decl_bools): Adjust. (trees_in::install_entity): Drop pending member and specialization handling. (find_pending_key): New. (depset::hash::fiund_dependencies): Use it. (pendset_lazy_load): Delete. (module_state::write_cluster): Don't count pendings here. Bye Duff's device-like thing. (module_state::write_pendings): Reimplement. (module_state::read_pendings): Reimplement. (lazy_specializations_p): Delete. (module_state::write): Adjust write_pendings call. (lazy_load_pendings): New. (lazy_load_specializations): Delete. (lazy_load_members): Delete. (init_modules): Adjust. * name-lookup.c (maybe_lazily_declare): Call lazy_load_pendings not lazy_load_members. (note_pending_specializations): Delete. (load_pending_specializations): Delete. * name-lookup.h (BINDING_VECTR_PENDING_SPECIALIZATIONS_P): Delete. (BINDING_VECTOR_PENDING_MEMBERS_P): Delete. (BINDING_VECTR_PENDING_MEMBERS_P): Delete. (note_pending_specializations): Delete. (load_pending_specializations): Delete. * pt.c (lookup_template_class_1): Call lazy_load_pendings not lazy_load_specializations. (instantiate_template_class_1): Likewise. (instantiate_decl): Call lazy_load_pendings. * typeck.c (complete_type): Likewise. 2021-03-03 Nathan Sidwell PR c++/99170 * module.cc (post_load_decls): New. (lazy_snum, recursive_lazy): Move earlier. (module_state::read_cluster): Push cloning onto post_load_decls. (post_load_processing): New. Do the cloning here. (module_state::read_inits): Call post_load_processing. (module_state::read_language): Likewise. (lazy_load_binding, lazy_load_specializations): Likewise (lazy_load_members): Likewise 2021-03-03 Nathan Sidwell PR c++/99170 * module.cc (trees_out::decl_value): Stream specialization keys after decl. (trees_in::decl_value): Stream them back and insert after completing the decl. (trees_out::key_mergeable): Drop some streaming here ... (trees_in::key_mergeable): ... and here. Don't insert into specialization tables. 2021-03-03 Patrick Palka * constraint.cc (struct sat_info): Document the different meanings of noisy() and diagnose_unsatisfaction_p() during satisfaction and requires-expression evaluation. (tsubst_valid_expression_requirement): Take a sat_info instead of a subst_info. Perform the substitution quietly first. Fold in error-replaying code from diagnose_valid_expression. (tsubst_simple_requirement): Take a sat_info instead of a subst_info. (tsubst_type_requirement_1): New. Fold in error-replaying code from diagnose_valid_type. (tsubst_type_requirement): Use the above. Take a sat_info instead of a subst_info. (tsubst_compound_requirement): Likewise. Fold in error-replaying code from diagnose_compound_requirement. (tsubst_nested_requirement): Take a sat_info instead of a subst_info. Fold in error-replaying code from diagnose_nested_requirement. (tsubst_requirement): Take a sat_info instead of a subst_info. (tsubst_requires_expr): Split into two versions, one that takes a sat_info argument and another that takes a complain and in_decl argument. Remove outdated documentation. Document the effects of the sat_info argument. Don't short-circuit processing of requirements when diagnosing unsatisfaction, mirroring diagnose_requires_expr. (satisfy_nondeclaration_constraint) : Remove assert, and se the three-parameter version of tsubst_requires_expr. (diagnose_trait_expr): Make static. Take a template argument vector instead of a parameter mapping. (diagnose_valid_expression): Remove. (diagnose_valid_type): Remove. (diagnose_simple_requirement): Remove. (diagnose_compound_requirement): Remove. (diagnose_type_requirement): Remove. (diagnose_nested_requirement): Remove. (diagnose_requirement): Remove. (diagnose_requires_expr): Remove. (diagnose_atomic_constraint): Take a sat_info instead of a subst_info. Adjust call to diagnose_trait_expr. Call tsubst_requires_expr instead of diagnose_requires_expr. (diagnose_constraints): Remove special casing of REQUIRES_EXPR and just always call constraint_satisfaction_value. 2021-03-03 Patrick Palka * constexpr.c (cxx_eval_call_expression): Adjust call to evaluate_concept_check. (cxx_eval_constant_expression) : Use evaluate_requires_expression instead of satisfy_constraint_expression. : Adjust call to evaluate_concept_check. * constraint.cc (struct sat_info): Adjust comment about which satisfaction entrypoints use noisy-unsat. (normalize_template_requirements): Remove (and adjust callers appropriately). (normalize_nontemplate_requirements): Likewise. (tsubst_nested_requirement): Use constraint_satisfaction_value instead of satisfy_constraint_expression, which'll do the noisy replaying of ill-formed quiet satisfaction for us. (decl_satisfied_cache): Adjust comment. (satisfy_constraint): Rename to ... (satisfy_normalized_constraints): ... this. (satisfy_associated_constraints): Remove (and make its callers check for dependent arguments). (satisfy_constraint_expression): Rename to ... (satisfy_nondeclaration_constraints): ... this. Assert that 'args' is empty when 't' is a concept-id. Removing handling bare constraint-expressions, and handle REQUIRES_EXPRs specially. Adjust comment accordingly. (satisfy_declaration_constraints): Assert in the two-parameter version that 't' is not a TEMPLATE_DECL. Adjust following removal of normalize_(non)?template_requirements and satisfy_asociated_constraints. (constraint_satisfaction_value): Combine the two- and three-parameter versions in the natural way. (constraints_satisfied_p): Combine the one- and two-parameter versions in the natural way. Improve documentation. (evaluate_requires_expr): Define. (evaluate_concept_check): Remove 'complain' parameter. Use constraint_satisfaction_value instead of satisfy_constraint_expression. (diagnose_nested_requirement): Adjust following renaming of satisfy_constraint_expression. (diagnose_constraints): Handle REQUIRES_EXPR by going through diagnose_requires_expr directly instead of treating it as a constraint-expression. Improve documentation. * cp-gimplify.c (cp_genericize_r) : Adjust call to evaluate_concept_check. : Use evaluate_requires_expr instead of constraints_satisfied_p. : Adjust call to evaluate_concept_check. * cp-tree.h (evaluate_requires_expr): Declare. (evaluate_concept_check): Remove tsubst_flag_t parameter. (satisfy_constraint_expression): Remove declaration. (constraints_satisfied_p): Remove one-parameter declaration. Add a default argument to the two-parameter declaration. * cvt.c (convert_to_void): Adjust call to evaluate_concept_check. 2021-03-03 Jakub Jelinek PR c++/82959 * call.c (op_is_ordered): Handle TRUTH_ANDIF_EXPR, TRUTH_ORIF_EXPR and COMPOUND_EXPR. 2021-03-03 Marek Polacek PR c++/97034 PR c++/99009 * pt.c (build_deduction_guide): Use INNERMOST_TEMPLATE_ARGS. (maybe_aggr_guide): Use the original template type where needed. In a class member template, partially instantiate the result of collect_ctor_idx_types. (do_class_deduction): Defer the deduction until the enclosing scope is non-dependent. 2021-03-03 Jason Merrill PR c++/95675 * call.c (build_temp): Wrap a CALL_EXPR in a TARGET_EXPR if it didn't get one before. 2021-03-03 Nathan Sidwell PR c++/99344 * module.cc (trees_out::decl_node): Small refactor. (depset::hash::add_binding_entity): Return true on meeting an import. Set namespace's import here. (module_state:write_namespaces): Inform of purview too. (module_state:read_namespaces): Adjust. * name-lookup.c (implicitly_export_namespace): Delete. (do_pushdecl): Don't call it. (push_namespace): Likewise, set purview. (add_imported_namespace): Reorder parms. * name-lookup.h (add_imported_namespace): Alter param ordering. 2021-03-02 Martin Sebor PR c++/99251 * class.c (build_base_path): Call build_if_nonnull. * cp-tree.h (build_if_nonnull): Declare. * rtti.c (ifnonnull): Rename... (build_if_nonnull): ...to this. Set no-warning bit on COND_EXPR. (build_dynamic_cast_1): Adjust to name change. 2021-03-02 Patrick Palka PR c++/96443 PR c++/96960 * constraint.cc (type_deducible_p): Don't substitute into the constraints, and instead just pass 'args' to do_auto_deduction as the outer template arguments. (tsubst_parameter_mapping): Remove confused code for handling placeholder type arguments. (normalize_placeholder_type_constraint): Define. (satisfy_constraint_expression): Use it to handle placeholder 'auto' types. * cp-tree.h (PLACEHOLDER_TYPE_CONSTRAINTS_INFO): Define. (PLACEHOLDER_TYPE_CONSTRAINTS): Redefine in terms of the above. * pt.c (tsubst) : Use PLACEHOLDER_TYPE_CONSTRAINTS_INFO instead. (make_constrained_placeholder_type): Set PLACEHOLDER_TYPE_CONSTRAINTS_INFO instead. (do_auto_deduction): Clarify comments about the outer_targs parameter. Rework satisfaction of a placeholder type constraint to pass in the complete set of template arguments directly to constraints_satisfied_p. (splice_late_return_type): Use PLACEHOLDER_TYPE_CONSTRAINTS_INFO instead. Also rebuild the the constraint info on the new auto. 2021-03-02 Patrick Palka * constraint.cc (build_parameter_mapping): Rely on the caller to determine the in-scope template parameters. (norm_info::norm_info): Delegate the tsubst_flags_t constructor to the two-parameter constructor. In the two-parameter constructor, fold in the definition of make_context, set initial_parms appropriately, and don't set the now-removed orig_decl member. (norm_info::make_context): Remove, now that its only use is inlined into the caller. (norm_info::update_context): Adjust call to build_parameter_mapping to pass in the relevant set of in-scope template parameters. (norm_info::ctx_parms): Define this member function. (norm_info::context): Initialize to NULL_TREE. (norm_info::orig_decl): Remove this data member. (norm_info::initial_parms): Define this data member. (normalize_atom): Adjust call to build_parameter_mapping to pass in the relevant set of in-scope template parameters. Use info.initial_parms instead of info.orig_decl. (normalize_constraint_expression): Take a norm_info object instead of a bool. Cache the result of normalization. (tsubst_nested_requirement): Call satisfy_constraint_expression instead of satisfy_constraint, so that we normalize on demand. (satisfy_constraint_expression): Handle a NESTED_REQ argument. Adjust call to normalize_constraint_expression. (finish_nested_requirement): Set the TREE_TYPE of the NESTED_REQ to current_template_parms. (diagnose_nested_requirements): Go through satisfy_constraint_expression, as with tsubst_nested_requirement. 2021-03-02 Patrick Palka * constraint.cc (tsubst_parameter_mapping): Canonicalize the arguments of a substituted TYPE_ARGUMENT_PACK even if we've started with a TYPE_ARGUMENT_PACK. (finish_requires_expr): Don't set DECL_CONTEXT and CONSTRAINT_VAR_P on each of the introduced parameters here. * parser.c (cp_parser_requirement_parameter_list): Instead set these fields earlier, here. * pt.c (do_auto_deduction): Canonicalize the result of do_auto_deduction. Pass 'complain' to finish_decltype_type. 2021-03-02 Patrick Palka * constraint.cc (tsubst_simple_requirement): Just return boolean_true_node on success. (tsubst_type_requirement): Likewise. (tsubst_compound_requirement): Likewise. (tsubst_nested_requirement): Likewise. (tsubst_requirement_body): Remove. (check_constaint_variables): Rename to ... (check_constraint_variables): ... this. (tsubst_constraint_variables): Adjust. (tsubst_requires_expr): Fold tsubst_requirement_body into here. 2021-03-01 Nathan Sidwell PR c++/99294 * class.c (fixup_type_variants): Propagate mode, precision, alignment & emptiness. * module.cc (trees_out::type_node): Use TYPE_ALIGN_RAW. (trees_in::tree_node): Rematerialize alignment here. 2021-02-27 Jason Merrill PR c++/90333 * parser.c (cp_parser_lambda_declarator_opt): Accept GNU attributes between () and ->. 2021-02-26 Jakub Jelinek * parser.c (cp_parser_lambda_declarator_opt): Implement P1102R2 - Down with ()! Make ()s optional before lambda specifiers for -std={c,gnu}++2b or with pedwarn in earlier versions. 2021-02-26 Jakub Jelinek PR c++/95451 * lambda.c (is_lambda_ignored_entity): Before checking for LAMBDA_FUNCTION_P, use OVL_FIRST. Drop FUNCTION_DECL check. 2021-02-26 Jason Merrill PR c++/98810 * pt.c (tsubst_copy) [VIEW_CONVERT_EXPR]: Add const to a class non-type template argument that needs it. 2021-02-26 Patrick Palka PR c++/98990 * pt.c (splice_late_return_type): Rebuild the entire return type if we have to adjust the level of an auto within. (type_uses_auto): Adjust call to find_type_usage. * type-utils.h (find_type_usage): Revert r10-6571 change that made this function return a pointer to the auto node. 2021-02-25 Patrick Palka PR c++/99213 PR c++/94521 * error.c (dump_scope): Pass TFF_NO_TEMPLATE_BINDINGS instead of TFF_NO_FUNCTION_ARGUMENTS when dumping a function scope. 2021-02-25 Patrick Palka PR c++/99103 * pt.c (is_spec_or_derived): Drop cv-qualifiers from 'etype'. (maybe_aggr_guide): Fix order of arguments to is_spec_or_derived. 2021-02-25 Marek Polacek DR 1312 PR c++/99176 * constexpr.c (is_std_construct_at): New overload. (is_std_allocator_allocate): New overload. (cxx_eval_call_expression): Use the new overloads. (cxx_eval_constant_expression): Reject casting from void * as per DR 1312. Don't check can_convert. 2021-02-25 Iain Sandoe PR c++/97587 * coroutines.cc (struct param_info): Track rvalue refs. (morph_fn_to_coro): Track rvalue refs, and call the promise CTOR with the frame copy of passed parms. 2021-02-25 Iain Sandoe PR c++/95822 * coroutines.cc (morph_fn_to_coro): Unconditionally remove any set throwing_cleanup marker. 2021-02-25 Nathan Sidwell PR c++/99166 * module.cc (module_state::inform_cmi_p): Renamed field. (module_state::do_import): Adjust. (init_modules, finish_module_processing): Likewise. (handle_module_option): Likewise. 2021-02-25 Nathan Sidwell PR c++/98318 * mapper-client.cc (module_client::open_module_client): Fix typo of fd init. 2021-02-24 Nathan Sidwell PR c++/98718 * module.cc (ool): New indirection vector. (loc_spans::maybe_propagate): Location is not optional. (loc_spans::open): Likewise. Assert monotonically advancing. (module_for_ordinary_loc): Use ool indirection vector. (module_state::write_prepare_maps): Do not count empty macro expansions. Elide empty spans. (module_state::write_macro_maps): Skip empty expansions. (ool_cmp): New qsort comparator. (module_state::write): Create and destroy ool vector. (name_pending_imports): Fix dump push/pop. (preprocess_module): Likewise. Add more dumping. (preprocessed_module): Likewise. 2021-02-24 Iain Sandoe PR c++/96251 * coroutines.cc (coro_common_keyword_context_valid_p): Suppress error reporting when instantiating for a constexpr. 2021-02-23 Nathan Sidwell PR c++/99208 * decl.c (name_unnamed_type): Check DECL identity, not IDENTIFIER identity. 2021-02-23 Patrick Palka PR c++/95468 * pt.c (tsubst_copy_and_build) : New case, copied over from tsubst_copy. 2021-02-23 Patrick Palka * pt.c (instantiation_dependent_expression_p): Check processing_template_decl before calling potential_constant_expression. 2021-02-22 Nathan Sidwell PR c++/99174 * module.cc (struct module_state): Add visited_p flag. (name_pending_imports): Use it to avoid duplicate requests. (preprocess_module): Don't read preprocessor state if we failed to load a module's config. 2021-02-22 Nathan Sidwell PR c++/99153 * decl.c (duplicate_decls): Move DECL_MODULE_IMPORT_P propagation to common-path. * module.cc (set_defining_module): Add assert. 2021-02-19 Nathan Sidwell PR c++/98741 * module.cc (pending_imports): New. (declare_module): Adjust test condition. (name_pending_imports): New. (preprocess_module): Reimplement using pending_imports. (preprocessed_module): Move name-getting to name_pending_imports. * name-lookup.c (append_imported_binding_slot): Assert module ordering is increasing. 2021-02-19 Nathan Sidwell * module.cc (note_cmis): New. (struct module_state): Add inform_read_p bit. (module_state::do_import): Inform of CMI location, if enabled. (init_modules): Canonicalize note_cmis entries. (handle_module_option): Handle -flang-info-module-read=FOO. 2021-02-19 Jason Merrill PR c++/96926 * call.c (perfect_conversion_p): Limit rvalueness test to reference bindings. 2021-02-19 Jason Merrill PR c++/96926 * call.c (perfect_conversion_p): New. (perfect_candidate_p): New. (add_candidates): Ignore templates after a perfect non-template. 2021-02-18 Nathan Sidwell PR c++/99023 * module.cc (canonicalize_header_name): Use cpp_probe_header_unit. (maybe_translate_include): Fix note_includes comparison. (init_modules): Fix note_includes string termination. 2021-02-18 Jakub Jelinek PR c++/99132 * cp-gimplify.c (cp_genericize_r) : Use cp_get_callee_fndecl_nofold instead of cp_get_callee_fndecl to check for immediate function calls. 2021-02-17 Nathan Sidwell PR c++/99023 * module.cc (struct macro_export): Add GTY markers. (macro_exports): Likewise, us a va_gc Vector. 2021-02-17 Jakub Jelinek PR sanitizer/99106 * init.c (build_zero_init_1): For flexible array members just return NULL_TREE instead of returning empty CONSTRUCTOR with non-complete ARRAY_TYPE. 2021-02-17 Nathan Sidwell PR c++/99116 * name-lookup.c (do_pushdecl): Don't peek under template_parm bindings here ... (set_identifier_type_value_with_scope): ... or here. (do_pushtag): Only set_identifier_type_value_with_scope at non-class template parm scope, and use parent scope. 2021-02-17 Nathan Sidwell PR c++/99071 * name-lookup.c (maybe_record_mergeable_decl): Deref the correct pointer. 2021-02-17 Patrick Palka PR debug/96997 PR c++/94034 * tree.c (build_aggr_init_expr): Revert r10-7718 change. 2021-02-12 Nathan Sidwell * module.cc (module_state::write_cluster): Check bindings for imported using-decls. 2021-02-12 Nathan Sidwell PR c++/99040 * module.cc (trees_in::decl_value): Call add_module_namespace_decl for new namespace-scope entities. (module_state::read_cluster): Don't call add_module_decl here. * name-lookup.h (add_module_decl): Rename to ... (add_module_namespace_decl): ... this. * name-lookup.c (newbinding_bookkeeping): Move into ... (do_pushdecl): ... here. Its only remaining caller. (add_module_decl): Rename to ... (add_module_namespace_decl): ... here. Add checking-assert for circularity. Don't call newbinding_bookkeeping, just extern_c checking and incomplete var checking. 2021-02-12 Nathan Sidwell PR c++/99039 PR c++/99040 * cp-tree.h (CPTI_GLOBAL_TYPE): Delete. (global_type_node): Delete. (IDENTIFIER_TYPE_VALUE): Delete. (IDENTIFIER_HAS_TYPE_VALUE): Delete. (get_type_value): Delete. * name-lookup.h (identifier_type_value): Delete. * name-lookup.c (check_module_override): Don't SET_IDENTIFIER_TYPE_VALUE here. (do_pushdecl): Nor here. (identifier_type_value_1, identifier_type_value): Delete. (set_identifier_type_value_with_scope): Only SET_IDENTIFIER_TYPE_VALUE for local and class scopes. (pushdecl_nanmespace_level): Remove shadow stack nadgering. (do_pushtag): Use REAL_IDENTIFIER_TYPE_VALUE. * call.c (check_dtor_name): Use lookup_name. * decl.c (cxx_init_decl_processing): Drop global_type_node. * decl2.c (cplus_decl_attributes): Don't SET_IDENTIFIER_TYPE_VALUE here. * init.c (get_type_value): Delete. * pt.c (instantiate_class_template_1): Don't call pushtag or SET_IDENTIFIER_TYPE_VALUE here. (tsubst): Assert never an identifier. (dependent_type_p): Drop global_type_node assert. * typeck.c (error_args_num): Don't use IDENTIFIER_HAS_TYPE_VALUE to determine ctorness. 2021-02-12 Jakub Jelinek PR c++/97742 * parser.c (cp_parser_requirement_seq): Stop iterating after reaching CPP_EOF. 2021-02-12 Jason Merrill PR c++/97246 PR c++/94546 * pt.c (extract_fnparm_pack): Check DECL_PACK_P here. (register_parameter_specializations): Not here. 2021-02-11 Marek Polacek PR c++/95888 * pt.c (lookup_template_class_1): Pass tf_none to tsubst when looking for the partial instantiation. 2021-02-11 Jakub Jelinek PR c++/99033 * init.c (build_zero_init_1): Handle zero initialiation of flexible array members like initialization of [0] arrays. Use integer_minus_onep instead of comparison to integer_minus_one_node and integer_zerop instead of comparison against size_zero_node. Formatting fixes. 2021-02-11 Marek Polacek PR c++/99063 * semantics.c (finish_do_stmt): Check for unexpanded parameter packs. 2021-02-11 Patrick Palka PR c++/97582 * name-lookup.c (op_unqualified_lookup): Handle an ambiguous lookup result by discarding it if the first element is a class-scope declaration, otherwise return it. (push_operator_bindings): Handle an ambiguous lookup result by doing push_local_binding on each element in the list. 2021-02-11 Marek Polacek * parser.c (cp_parser_selection_statement): Use vec_free. 2021-02-10 Jakub Jelinek PR c++/98988 PR c++/99031 * constexpr.c: Include cgraph.h. (cxx_eval_call_expression): Call varpool_node::finalize_decl on heap artificial vars. (cxx_eval_outermost_constant_expr): Remove varpool nodes for heap artificial vars. 2021-02-10 Nathan Sidwell PR c++/99030 * pt.c (tsubst_copy) [VAR_DECL]: For a DECL_LOCAL_DECL_P T is the answer if there's no local specialization. 2021-02-09 Nathan Sidwell PR c++/98944 * module.cc (module_state::is_rooted): Rename to ... (module_state::has_location): ... here. Adjust callers. (module_state::read_partitions): Adjust validity check. Don't overwrite a known location. 2021-02-09 Jason Merrill PR c++/96905 * pt.c (mark_decl_instantiated): Exit early if consteval. 2021-02-09 Jason Merrill PR c++/98326 PR c++/20408 * cp-gimplify.c (simple_empty_class_p): Don't touch an invisiref parm. 2021-02-09 Jason Merrill PR c++/98994 PR c++/97566 * constexpr.c (cxx_eval_store_expression): Only skip empty fields in RECORD_TYPE. 2021-02-08 Nathan Sidwell * decl.c (start_cleanup_fn): Push function into namespace. 2021-02-08 Nathan Sidwell PR c++/98531 * cp-tree.h (push_abi_namespace, pop_abi_namespace): Declare. * decl.c (push_abi_namespace, pop_abi_namespace): Moved from rtti.c, add default namespace arg. (check_redeclaration_exception_specification): Allow a lazy builtin's eh spec to differ from an lready-declared user declaration. (declare_global_var): Use push/pop_abi_namespace. (get_atexit_node): Push the fndecl into a namespace. * rtti.c (push_abi_namespace, pop_abi_namespace): Moved to decl.c. 2021-02-08 Marek Polacek * cp-tree.h (CLASSTYPE_TI_TEMPLATE): Fix typo. 2021-02-05 Marek Polacek PR c++/98947 * call.c (build_conditional_expr_1): Don't call mark_lvalue_use on arg2/arg3. * expr.c (mark_use) : Don't check read_p when issuing the -Wvolatile warning. Only set TREE_THIS_VOLATILE if a warning was emitted. 2021-02-05 Marek Polacek PR c++/96462 * name-lookup.c (lookup_using_decl): Hoist the destructor check. 2021-02-05 Jakub Jelinek PR c++/97878 * decl.c (check_array_initializer): For structured bindings, require the array type to be complete. 2021-02-04 Jason Merrill PR c++/98717 * constraint.cc (build_concept_check_arguments): Remove assert. (build_concept_check): Allow empty args. 2021-02-04 Tom Greenslade (thomgree) PR c++/90926 * call.c (can_convert_array): Extend to handle all valid aggregate initializers of an array; including by string literals, not just by brace-init-list. (build_aggr_conv): Call can_convert_array more often, not just in brace-init-list case. * typeck2.c (array_string_literal_compatible_p): New function. (digest_init_r): call array_string_literal_compatible_p * cp-tree.h: (array_string_literal_compatible_p): Declare. 2021-02-04 Jason Merrill PR c++/98802 * pt.c (do_class_deduction): No aggregate guide if any_dguides_p. 2021-02-04 Jason Merrill PR c++/95192 * pt.c (tsubst_attribute): Handle error. (apply_late_template_attributes): Return false on error. (tsubst_function_decl): Check its return value. (tsubst_decl): Likewise. (push_template_decl): Assert current_template_parms. (tsubst_template_decl): Set current_template_parms. 2021-02-03 Marek Polacek PR c++/98951 * call.c (struct z_candidate): Mark rewritten and reversed as const. (struct NonPublicField): Mark operator() as const. (struct NonTrivialField): Likewise. 2021-02-03 Jason Merrill PR c++/98926 PR c++/98570 * pt.c (spec_hasher::equal): Set processing_template_decl. * Make-lang.in (check-g++-strict-gc): Add --param hash-table-verification-limit=10000. 2021-02-03 Marek Polacek PR c++/98899 * parser.c (cp_parser_class_specifier_1): Use any possible DEFPARSE_INSTANTIATIONS to update DEFERRED_NOEXCEPT_PATTERN. (cp_parser_save_noexcept): Initialize DEFPARSE_INSTANTIATIONS. * pt.c (tsubst_exception_specification): Stash new_specs into DEFPARSE_INSTANTIATIONS. * tree.c (fixup_deferred_exception_variants): Use UNPARSED_NOEXCEPT_SPEC_P. 2021-02-02 Jason Merrill PR c++/98929 PR c++/96199 * error.c (dump_expr): Ignore dummy object. * pt.c (tsubst_baselink): Handle dependent scope. 2021-02-01 Patrick Palka PR c++/98295 * constexpr.c (cxx_eval_array_reference): Also set new_ctx.object when setting new_ctx.ctor. 2021-02-01 Marek Polacek PR c++/98355 * parser.c (cp_parser_has_attribute_expression): Use uses_template_parms instead of type_dependent_expression_p. 2021-02-01 Jason Merrill PR c++/98570 * cp-tree.h: Declare it. * pt.c (comparing_dependent_aliases): New flag. (template_args_equal, spec_hasher::equal): Set it. (dependent_alias_template_spec_p): Assert that we don't get non-types other than error_mark_node. (instantiate_alias_template): SET_TYPE_STRUCTURAL_EQUALITY on complex alias specializations. Set TYPE_DEPENDENT_P here. (tsubst_decl): Not here. * module.cc (module_state::read_cluster): Set comparing_dependent_aliases instead of comparing_specializations. * tree.c (cp_tree_equal): Remove comparing_specializations module handling. * typeck.c (structural_comptypes): Adjust. (comptypes): Remove comparing_specializations handling. 2021-01-29 Nathan Sidwell PR c++/98843 * module.cc (module_state_config): Add num_entities field. (module_state::read_entities): The entity_ary span is already allocated. (module_state::write_config): Write num_entities. (module_state::read_config): Read num_entities. (module_state::write): Set config's num_entities. (module_state::read_initial): Allocate the entity ary span here. (module_state::read_language): Do not set entity_lwm here. 2021-01-29 Marek Polacek PR c++/96137 * parser.c (cp_parser_class_name): If parser->scope is error_mark_node, return it, otherwise continue. 2021-01-28 Jakub Jelinek PR c++/98841 * typeck.c (build_x_indirect_ref): For *this, return current_class_ref. 2021-01-28 Jakub Jelinek PR c++/33661 PR c++/98847 * decl.c (cp_finish_decl): For register vars with asmspec in templates call set_user_assembler_name and set DECL_HARD_REGISTER. * pt.c (tsubst_expr): When instantiating DECL_HARD_REGISTER vars, pass asmspec_tree to cp_finish_decl. 2021-01-28 Nathan Sidwell PR c++/98770 * module.cc (trees_out::decl_value): Swap is_typedef & TYPE_NAME check order. (trees_in::decl_value): Do typedef frobbing only when installing a new typedef, adjust is_matching_decl call. Swap is_typedef & TYPE_NAME check. (trees_in::is_matching_decl): Add is_typedef parm. Adjust variable names and deal with typedef checking. 2021-01-27 Jason Merrill PR c++/97874 * name-lookup.c (lookup_using_decl): Clean up handling of dependency and inherited constructors. (finish_nonmember_using_decl): Handle DECL_DEPENDENT_P. * pt.c (tsubst_expr): Handle DECL_DEPENDENT_P. 2021-01-26 Jason Merrill PR c++/97474 * call.c (type_passed_as): Don't mark invisiref restrict. 2021-01-26 Jason Merrill PR c++/97566 PR c++/98463 * class.c (layout_class_type): An empty field gets size 0. (is_empty_field): New. (check_bases): Check it. * cp-tree.h (is_empty_field): Declare it. * constexpr.c (cxx_eval_store_expression): Check it. (cx_check_missing_mem_inits): Likewise. * init.c (perform_member_init): Likewise. * typeck2.c (process_init_constructor_record): Likewise. 2021-01-25 Martin Sebor PR c++/98646 * cvt.c (cp_fold_convert): Propagate TREE_NO_WARNING. 2021-01-25 Jason Merrill PR c++/98463 * constexpr.c (get_or_insert_ctor_field): Add check. (cxx_eval_store_expression): Handle discontinuity of refs. 2021-01-23 Anthony Sharp * call.c (complain_about_access): Altered function. * cp-tree.h (complain_about_access): Changed parameters of function. (get_parent_with_private_access): Declared new function. * search.c (get_parent_with_private_access): Defined new function. * semantics.c (enforce_access): Modified function. * typeck.c (complain_about_unrecognized_member): Updated function arguments in complain_about_access. 2021-01-23 Patrick Palka PR c++/97399 * cp-tree.h (shared_member_p): Adjust declaration. * parser.c (cp_parser_init_declarator): If the storage class specifier is sc_static, pass true for static_p to cp_parser_declarator. (cp_parser_direct_declarator): Don't do inject_this_parm when the declarator is a friend. * search.c (shared_member_p): Change return type to bool and adjust function body accordingly. Return false for a dependent USING_DECL instead of aborting. * semantics.c (finish_qualified_id_expr): Rely on shared_member_p even when type-dependent. 2021-01-22 Marek Polacek PR c++/96623 * parser.c (inject_parm_decls): Remove a redundant assignment. (cp_parser_class_specifier_1): Clear current_class_{ptr,ref} before calling inject_parm_decls. 2021-01-22 Jason Merrill PR c++/98744 * call.c (make_base_init_ok): Use DECL_HAS_VTT_PARM_P. 2021-01-22 Jakub Jelinek PR sanitizer/95693 * init.c (build_zero_init_1): Revert the 2018-03-06 change to return build_zero_cst for reference types. * typeck2.c (process_init_constructor_record): Instead call build_zero_cst here during error recovery instead of build_zero_init. 2021-01-22 Marek Polacek PR c++/98545 * mangle.c (write_member_name): Emit abi_warn_or_compat_version_crosses warnings regardless of abi_version_at_least. (write_expression): When the expression is a dependent name and an operator name, write "on" before writing its name. 2021-01-22 Marek Polacek PR c++/97966 * pt.c (instantiate_class_template_1): Instantiate members marked with attribute used only after we're done instantiating the class. 2021-01-21 Patrick Palka PR c++/71879 * semantics.c (finish_decltype_type): Set up a cp_unevaluated sentinel at the start of the function. Remove a now-redundant manual adjustment of cp_unevaluated_operand. 2021-01-21 Nathan Sidwell PR c++/98624 * module.cc (depset::hash::find_dependencies): Add module arg. (trees_out::core_vals): Check state before calling write_location. (sort_cluster, module_state::write): Adjust find_dependencies call. 2021-01-21 Jakub Jelinek PR c++/98672 * constexpr.c (check_for_return_continue_data): Add break_stmt member. (check_for_return_continue): Also look for BREAK_STMT. Handle SWITCH_STMT by ignoring break_stmt from its body. (potential_constant_expression_1) , : If the condition isn't constant true, check if the loop body can contain a return stmt. : Adjust check_for_return_continue_data initializer. : If recursion with tf_none is successful, merge *jump_target from the branches - returns with highest priority, breaks or continues lower. If then branch is potentially constant and doesn't return, check the else branch if it could return, break or continue. 2021-01-21 Nathan Sidwell PR c++/98530 * name-lookup.c (lookup_class_binding): Rearrange a stat-hack. 2021-01-20 Nathan Sidwell * module.cc (bytes_in::i, bytes_in::wi): Avoid left shift of signed type. 2021-01-20 Patrick Palka PR c++/95434 * pt.c (tsubst) : If tsubsting CLASS_PLACEHOLDER_TEMPLATE yields a TEMPLATE_TEMPLATE_PARM, adjust to its TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL. 2021-01-20 Patrick Palka PR c++/82613 * parser.c (cp_parser_class_head): Defer access checking when parsing the base-clause until all bases are seen and attached to the class type. * pt.c (instantiate_class_template): Likewise when substituting into dependent bases. 2021-01-20 Jakub Jelinek PR c++/98742 * semantics.c (finish_omp_clauses) : If error_operand_p, remove clause without further checking. Check for non-NULL TYPE_NAME. 2021-01-19 Marek Polacek PR c++/98659 * pt.c (maybe_instantiate_noexcept): Return false if FN is error_mark_node. 2021-01-19 Marek Polacek PR c++/98687 * name-lookup.c (push_using_decl_bindings): New, broken out of... (finish_nonmember_using_decl): ...here. * name-lookup.h (push_using_decl_bindings): Update declaration. * pt.c (tsubst_expr): Update the call to push_using_decl_bindings. 2021-01-19 Patrick Palka PR c++/41437 PR c++/58993 * search.c (friend_accessible_p): If scope is a hidden friend defined inside a dependent class, consider access from the class. * parser.c (cp_parser_late_parsing_for_member): Don't push a dk_no_check access state. 2021-01-19 Marek Polacek PR c++/98333 * parser.c (cp_parser_class_specifier_1): Perform late-parsing of NSDMIs before late-parsing of noexcept-specifiers. 2021-01-19 Nathan Sidwell * module.cc (identifier): Merge overloads. 2021-01-19 Nathan Sidwell PR c++/98624 * module.cc (trees_out::write_location): Make static. 2021-01-16 Kwok Cheung Yeung * parser.c (cp_parser_omp_clause_detach): New. (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DETACH. (OMP_TASK_CLAUSE_MASK): Add mask for PRAGMA_OMP_CLAUSE_DETACH. * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_DETACH clause. * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_DETACH clause. Prevent use of detach with mergeable and overriding the data sharing mode of the event handle. 2021-01-15 Nathan Sidwell PR c++/98538 * tree.c (cp_build_qualified_type_real): Propagate an array's dependentness to the copy, if known. 2021-01-15 Jason Merrill PR c++/98642 * call.c (unsafe_return_slot_p): Return int. (init_by_return_slot_p): Split out from... (unsafe_copy_elision_p): ...here. (unsafe_copy_elision_p_opt): New name for old meaning. (build_over_call): Adjust. (make_safe_copy_elision): New. * typeck2.c (split_nonconstant_init_1): Elide copy from safe list-initialization. * cp-tree.h: Adjust. 2021-01-15 Jason Merrill * call.c (base_ctor_for, make_base_init_ok): New. (build_over_call): Use make_base_init_ok. 2021-01-15 Jason Merrill PR c++/63707 * tree.c (build_vec_init_expr): Don't call build_vec_init_elt if we got a CONSTRUCTOR. 2021-01-15 Nathan Sidwell PR c++/98591 * lang-specs.h: Fix handling of -fmodule-only with -fsyntax-only. 2021-01-14 Jason Merrill * typeck2.c (process_init_constructor_record): Use fldtype variable consistently. 2021-01-14 Nathan Sidwell PR c++/98372 * tree.c (cp_tree_equal): Correct map_context logic. 2021-01-13 Marek Polacek PR c++/98231 * name-lookup.c (push_using_decl_bindings): New. * name-lookup.h (push_using_decl_bindings): Declare. * pt.c (tsubst_expr): Call push_using_decl_bindings. 2021-01-13 Nathan Sidwell PR c++/98626 * module.cc (module_add_import_initializers): Pass a zero-element argument vector. 2021-01-12 Patrick Palka PR c++/98611 * tree.c (cp_walk_subtrees) : Visit the template of a CTAD placeholder. 2021-01-12 Marek Polacek PR c++/98620 * typeck2.c (process_init_constructor_record): Don't emit -Wmissing-field-initializers warnings in unevaluated contexts. 2021-01-11 Jakub Jelinek PR c++/98481 * class.c (find_abi_tags_r): Set *walk_subtrees to 2 instead of 1 for types. (mark_abi_tags_r): Likewise. * decl2.c (min_vis_r): Likewise. * tree.c (cp_walk_subtrees): If *walk_subtrees_p is 2, look through typedefs. 2021-01-08 Patrick Palka PR c++/98551 * constexpr.c (cxx_eval_call_expression): Check CLASS_TYPE_P instead of AGGREGATE_TYPE_P before calling replace_result_decl. 2021-01-08 Patrick Palka PR c++/98515 * semantics.c (check_accessibility_of_qualified_id): Punt if we're checking access of a scoped non-static member inside a class template. 2021-01-07 Jakub Jelinek PR c++/98329 * pt.c (tsubst_copy) : Don't call cp_build_bit_cast here, instead just build_min a BIT_CAST_EXPR and set its location. (tsubst_copy_and_build): Handle BIT_CAST_EXPR. 2021-01-07 Marek Polacek PR c++/98441 * decl.c (grokdeclarator): Move the !funcdecl_p check inside the !late_return_type block. 2021-01-07 Jason Merrill * constexpr.c (cxx_bind_parameters_in_call): Add comment. (cxx_eval_store_expression): Add comment. 2021-01-07 Jason Merrill * call.c (has_next): Factor out from... (next_conversion): ...here. (strip_standard_conversion): And here. (is_subseq): And here. (build_conv): Check it. (standard_conversion): Don't call build_conv for ck_identity. 2021-01-06 Martin Sebor PR c++/95768 * error.c (dump_expr): Call c_pretty_printer::unary_expression. 2021-01-05 Patrick Palka * pt.c (unify) : After walking into the type of the NTTP, substitute into the type again. If the type is still dependent, don't unify the NTTP. 2021-01-05 Jakub Jelinek * Make-lang.in (cc1plus-checksum, cc1plus$(exeext): Add $(CODYLIB) after $(BACKEND). 2021-01-05 Jakub Jelinek PR c++/98469 * constexpr.c (cxx_eval_constant_expression) : Punt if lval is true. * semantics.c (cp_build_bit_cast): Call get_target_expr_sfinae on the result if it has a class type. 2021-01-05 Marek Polacek PR c++/82099 * pt.c (resolve_overloaded_unification): Call maybe_instantiate_noexcept after instantiating the function decl. 2021-01-05 Nathan Sidwell * parser.c (cp_parser_module_declaration): Alter diagnostic text to say where is permissable. 2021-01-05 Rainer Orth PR c++/98316 * Make-lang.in (cc1plus$(exeext)): Add $(CODYLIB), $(NETLIBS). 2021-01-02 Jan Hubicka * cp-tree.h (cp_tree_c_finish_parsing): Declare. * decl2.c (c_parse_final_cleanups): Call cp_tree_c_finish_parsing. * tree.c (cp_tree_c_finish_parsing): New function. 2021-01-01 Jakub Jelinek * ChangeLog-2020: Rotate ChangeLog. New file. Copyright (C) 2021 Free Software Foundation, Inc. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.