2021-05-14 Release Manager * GCC 8.5.0 released. 2021-04-30 Jason Merrill Backported from master: 2021-04-30 Jason Merrill PR c++/95719 * call.c (build_over_call): Look up the overrider in base_binfo. * class.c (lookup_vfn_in_binfo): Look through BINFO_PRIMARY_P. 2021-04-22 Jakub Jelinek Backported from master: 2021-04-20 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. 2021-04-22 Jakub Jelinek Backported from master: 2021-03-30 Jakub Jelinek PR c++/99790 * cp-gimplify.c (cp_gimplify_expr): Handle PTRMEM_CST. 2021-04-22 Jakub Jelinek Backported from master: 2021-03-30 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. 2021-04-22 Jakub Jelinek Backported from master: 2021-03-30 Jakub Jelinek PR c++/99650 * decl.c (cp_finish_decomp): Diagnose void initializers when using tuple_element and get. 2021-04-22 Jakub Jelinek Backported from master: 2021-03-19 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. 2021-04-22 Jakub Jelinek Backported from master: 2021-03-19 Jakub Jelinek PR c++/82959 * call.c (op_is_ordered): Handle TRUTH_ANDIF_EXPR, TRUTH_ORIF_EXPR and COMPOUND_EXPR. 2021-04-22 Jakub Jelinek Backported from master: 2021-03-19 Jakub Jelinek PR c++/95451 * lambda.c (is_lambda_ignored_entity): Before checking for LAMBDA_FUNCTION_P, use OVL_FIRST. Drop FUNCTION_DECL check. 2021-04-22 Jakub Jelinek Backported from master: 2021-03-19 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. 2021-04-22 Jakub Jelinek Backported from master: 2021-03-19 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. 2021-04-22 Jakub Jelinek Backported from master: 2021-03-19 Jakub Jelinek PR c++/97878 * decl.c (check_array_initializer): For structured bindings, require the array type to be complete. 2021-04-22 Jakub Jelinek Backported from master: 2021-01-29 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. 2021-04-22 Jakub Jelinek Backported from master: 2021-01-29 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. 2021-04-22 Jakub Jelinek Backported from master: 2020-11-12 Jakub Jelinek PR c++/97663 * parser.c (cp_parser_init_declarator): Don't try to parse C++17 deduction guides if there are any type specifiers even when type is NULL. 2021-04-21 Patrick Palka Backported from master: 2020-10-07 Patrick Palka PR c++/88115 PR libstdc++/97273 * tree.c (cp_tree_equal) : Return false if ALIGNOF_EXPR_STD_P differ. 2020-12-16 Nathan Sidwell * parser.c (cp_parser_elaborated_type_specifier): Test BOUND_TEMPLATE_TEMPLATE_PARM before checking for instantiation. 2020-12-09 Jason Merrill PR c++/91953 * constexpr.c (potential_constant_expression_1) [PARM_DECL]: Allow empty class type. 2020-11-25 Thomas Schwinge Backported from master: 2020-11-25 Thomas Schwinge * pt.c (tsubst_omp_clauses): Handle 'OMP_CLAUSE__CACHE_'. (tsubst_expr): Handle 'OACC_CACHE'. 2020-11-24 Jason Merrill PR c++/95158 * class.c (lookup_vfn_in_binfo): New. * call.c (build_over_call): Use it. (build_new_method_call_1): Don't set LOOKUP_NONVIRTUAL. * cp-tree.h (resolves_to_fixed_type_p): Add default argument. (lookup_vfn_in_binfo): Declare. 2020-09-17 Jakub Jelinek Backported from master: 2020-05-28 Jakub Jelinek PR c++/95328 * decl.c (cp_finish_decomp): Call complete_type before checking COMPLETE_TYPE_P. 2020-09-17 Jakub Jelinek Backported from master: 2020-05-07 Jakub Jelinek PR c++/94951 * typeck.c (cp_strict_aliasing_warning): New function. (cp_build_indirect_ref_1, build_reinterpret_cast_1): Use it instead of strict_aliasing_warning. 2020-09-17 Jakub Jelinek Backported from master: 2020-04-24 Jakub Jelinek PR c++/94742 * semantics.c (finish_call_expr): When looking if all overloads are noreturn, use STRIP_TEMPLATE to look through TEMPLATE_DECLs. 2020-09-17 Jakub Jelinek Backported from master: 2020-04-16 Jakub Jelinek PR c++/94571 * parser.c (cp_parser_simple_declaration): Fix up a pasto in diagnostics. 2020-09-17 Jakub Jelinek Backported from master: 2020-04-08 Jakub Jelinek PR c++/94325 * decl.c (begin_destructor_body): For CLASSTYPE_VBASECLASSES class dtors, if CLASSTYPE_PRIMARY_BINFO is non-NULL, but not BINFO_VIRTUAL_P, look at CLASSTYPE_PRIMARY_BINFO of its BINFO_TYPE if it is not BINFO_VIRTUAL_P, and so on. 2020-09-17 Jakub Jelinek Backported from master: 2020-04-07 Jakub Jelinek PR c++/93931 * parser.c (cp_parser_omp_var_list_no_open): Call process_outer_var_ref on outer_automatic_var_p decls. * cp-gimplify.c (cxx_omp_disregard_value_expr): Return true also for capture proxy decls. 2020-09-17 Jakub Jelinek Backported from master: 2020-04-07 Jakub Jelinek PR c++/90995 * parser.c (cp_parser_enum_specifier): Use temp_override for parser->colon_corrects_to_scope_p, replace goto out with return. If scoped enum or enum with underlying type is not followed by { or ;, call cp_parser_commit_to_tentative_parse before calling cp_parser_error and make sure to return error_mark_node instead of NULL_TREE. Formatting fixes. 2020-05-25 Jason Merrill PR c++/90749 * init.c (get_nsdmi): Don't push_to_top_level for a local class. 2020-05-25 Jason Merrill PR c++/91529 * decl.c (cp_finish_decl): Also clear TREE_READONLY if -fmerge-all-constants. 2020-05-25 Jason Merrill PR c++/93822 * pt.c (tsubst_decl): Make sure DECL_VALUE_EXPR continues to have the same type as the variable. 2020-05-04 Marek Polacek Backported from mainline 2019-06-12 Marek Polacek PR c++/90736 - bogus error with alignof. * constexpr.c (adjust_temp_type): Use cv_unqualified type. 2020-04-04 Jason Merrill PR c++/91377 * mangle.c (write_expression): Skip IMPLICIT_CONV_EXPR. 2020-04-03 Jason Merrill PR c++/91966 * pt.c (complex_pack_expansion_r): New. (complex_alias_template_p): Use it. 2020-03-27 Nathan Sidwell PR c++/84733 * name-lookup.c (do_pushdecl): Look through cleanp levels. 2020-03-14 Jason Merrill PR c++/92909 * pt.c (find_parameter_packs_r): [DECL_EXPR]: Walk DECL_ORIGINAL_TYPE of a typedef. 2020-03-14 Jason Merrill PR c++/92068 * pt.c (process_partial_specialization): Error rather than crash on extra pack expansion. 2020-03-14 Jason Merrill PR c++/93248 * pt.c (build_deduction_guide): Clear cp_unevaluated_operand for substituting DECL_ARGUMENTS. 2020-03-04 Release Manager * GCC 8.4.0 released. 2020-02-26 Jakub Jelinek PR c++/93905 Backported from mainline 2018-11-04 Jason Merrill * constexpr.c (cxx_eval_outermost_constant_expr): Don't wrap a CONSTRUCTOR if one was passed in. 2020-02-26 Marek Polacek PR c++/90998 - ICE with copy elision in init by ctor and -Wconversion. * call.c (joust): Don't attempt to warn if ->second_conv is null. 2020-02-26 Jason Merrill PR c++/86521 - C++17 copy elision in initialization by constructor. * call.c (joust_maybe_elide_copy): New. (joust): Call it. 2020-02-26 Jason Merrill PR c++/90546 * call.c (build_user_type_conversion_1): Allow a template conversion returning an rvalue reference to bind directly to an lvalue. 2020-02-26 Jason Merrill PR c++/86521 - wrong overload resolution with ref-qualifiers. * call.c (build_user_type_conversion_1): Don't use a conversion to a reference of the wrong rvalueness for direct binding. 2020-02-25 Jason Merrill PR c++/89831 - error with qualified-id in const member function. * semantics.c (finish_non_static_data_member): Use object cv-quals in scoped case, too. 2020-02-25 Jason Merrill PR c++/88380 - wrong-code with flexible array and NSDMI. * typeck2.c (process_init_constructor_record): Skip flexarrays. 2020-02-25 Jason Merrill PR c++/87685 - generic lambda 'this' capture error. * lambda.c (lambda_expr_this_capture): Change add_capture_p to int. (maybe_generic_this_capture): Pass -1. 2020-02-25 Jason Merrill PR c++/87554 - ICE with extern template and reference member. * decl.c (cp_finish_decl): Don't set DECL_INITIAL of external vars. 2020-02-25 Alexandre Oliva PR c++/86747 * pt.c (tsubst_friend_class): Enter tsubsted class context. 2020-02-25 Jason Merrill PR c++/86429 - constexpr variable in lambda. PR c++/82643 PR c++/87327 * constexpr.c (cxx_eval_constant_expression): In a lambda function, try evaluating the captured variable directly. 2020-02-25 Jason Merrill * cp-tree.h (TYPE_REF_P): New. 2020-02-25 Jason Merrill PR c++/87748 - substitution failure error with decltype. * pt.c (most_specialized_partial_spec): Clear processing_template_decl. 2020-02-25 Jason Merrill PR c++/87480 - decltype of member access in default template arg * pt.c (type_unification_real): Accept a dependent result in template context. 2020-02-25 Jason Merrill PR c++/88394 - ICE with VLA init-capture. * lambda.c (is_normal_capture_proxy): Check DECL_CAPTURED_VARIABLE. 2019-02-05 Alexandre Oliva PR c++/87770 * pt.c (instantiates_primary_template_p): New. (type_dependent_expression_p): Use it. 2020-02-25 Marek Polacek PR c++/92745 - bogus error when initializing array of vectors. * decl.c (reshape_init_r): For a nested compound literal, do call reshape_init_{class,array,vector}. 2020-02-25 Jason Merrill PR c++/89917 - ICE with lambda in variadic mem-init. * pt.c (make_pack_expansion): Change type_pack_expansion_p to false. 2020-02-24 Jason Merrill PR c++/90951 * constexpr.c (cxx_eval_array_reference): {}-initialize missing elements instead of value-initializing them. 2020-02-24 Jason Merrill PR c++/93140 * pt.c (tsubst_decl) [PARM_DECL]: Check cp_unevaluated_operand in handling of TREE_CHAIN for empty pack. 2020-02-24 Jason Merrill PR c++/92852 * constexpr.c (maybe_constant_value): Don't unshare if the cached value is the same as the argument. 2020-02-14 Jakub Jelinek PR c++/61414 * class.c (enum_min_precision): Change prec type from int to int &. 2020-02-14 Jakub Jelinek Backported from mainline 2020-01-17 Jakub Jelinek PR c++/93228 * parser.c (cp_parser_template_name): Look up deprecated attribute in DECL_TEMPLATE_RESULT or its type's attributes. 2019-12-26 Jakub Jelinek PR c++/92438 * parser.c (cp_parser_constructor_declarator_p): If open paren is followed by RID_ATTRIBUTE, skip over the attribute tokens and try to parse type specifier. 2019-12-20 Jakub Jelinek PR c++/92992 * call.c (convert_arg_to_ellipsis): For decltype(nullptr) arguments that have side-effects use cp_build_compound_expr. 2019-12-03 Jakub Jelinek PR c++/92732 * typeck2.c (digest_nsdmi_init): For bitfields, use DECL_BIT_FIELD_TYPE instead of TREE_TYPE. 2019-11-29 Jakub Jelinek PR c++/60228 * parser.c (cp_parser_omp_declare_reduction_exprs): If processing_template_decl, wrap the combiner or initializer into EXPR_STMT. * decl.c (start_preparsed_function): Don't start a lambda scope for DECL_OMP_DECLARE_REDUCTION_P functions. (finish_function): Don't finish a lambda scope for DECL_OMP_DECLARE_REDUCTION_P functions, nor cp_fold_function them nor cp_genericize them. * mangle.c (decl_mangling_context): Look through DECL_OMP_DECLARE_REDUCTION_P functions. * semantics.c (expand_or_defer_fn_1): For DECL_OMP_DECLARE_REDUCTION_P functions, use tentative linkage, don't keep their bodies with -fkeep-inline-functions and return false at the end. 2019-11-27 Jakub Jelinek PR c++/92524 * tree.c (replace_placeholders_r): Don't walk constructor elts with RANGE_EXPR indexes. 2019-11-26 Jakub Jelinek PR c++/92648 * parser.c (cp_parser_std_attribute): For unknown attributes, skip balanced token seq instead of trying to parse attribute-argument-clause as expression list. PR c++/61414 * class.c (enum_to_min_precision): New hash_map. (enum_min_precision): New function. (check_bitfield_decl): Use it. 2019-11-21 Jakub Jelinek Jason Merrill PR c++/90842 * parser.c (cp_parser_decl_specifier_seq): For concept or typedef break early if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR. For type specifiers, set CP_PARSER_FLAGS_NO_TYPE_DEFINITIONS if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR is set. 2020-01-27 Nathan Sidwell PR c++/91826 * name-lookup.c (is_ancestor): Allow CHILD to be a namespace alias. 2020-01-24 Jason Merrill PR c++/92852 - ICE with generic lambda and reference var. * constexpr.c (maybe_constant_value): Likewise. 2019-12-11 Jason Merrill PR c++/92859 - ADL and bit-field. * name-lookup.c: Use unlowered_expr_type. 2019-11-21 Jakub Jelinek Backported from mainline 2019-10-22 Jakub Jelinek PR tree-optimization/85887 * decl.c (expand_static_init): Drop ECF_LEAF from __cxa_guard_acquire and __cxa_guard_release. 2019-10-29 Jakub Jelinek PR c++/92201 * cp-gimplify.c (cp_gimplify_expr): If gimplify_to_rvalue changes the function pointer type, re-add cast to the original one. 2019-10-04 Jakub Jelinek PR c++/91974 * cp-gimplify.c (cp_gimplify_expr) : For -fstrong-eval-order ensure CALL_EXPR_FN side-effects are evaluated before any arguments. Additionally, ensure CALL_EXPR_FN that isn't invariant nor OBJ_TYPE_REF nor SSA_NAME is forced into a temporary. 2019-08-09 Jakub Jelinek PR c/91401 * parser.c (cp_parser_omp_clause_dist_schedule): Comment out the check_no_duplicate_clause call, instead emit a warning for duplicate dist_schedule clauses. 2019-11-05 Jason Merrill PR c++/88075 * parser.c (cp_parser_decl_specifier_seq): Support C++20 concept-definition syntax without 'bool'. 2019-10-22 Marek Polacek Backported from mainline 2019-10-21 Marek Polacek PR c++/92106 - ICE with structured bindings and -Wreturn-local-addr. * typeck.c (maybe_warn_about_returning_address_of_local): Avoid recursing on null initializer and return false instead. 2019-09-03 Iain Sandoe Backported from mainline 2019-08-23 Iain Sandoe PR pch/61250 * parser.c (cp_parser_initial_pragma): Call c_common_no_more_pch () after determining that the first token is not PRAGMA_GCC_PCH_PREPROCESS. 2019-08-30 Richard Biener Backport from mainline 2019-02-21 Richard Biener PR middle-end/89392 * vtable-class-hierarchy.c (vtv_generate_init_routine): Do not make symtab process new functions here. 2019-08-29 Jakub Jelinek Backported from mainline 2019-06-21 Jakub Jelinek PR c++/90950 * semantics.c (finish_omp_clauses): Don't reject references to incomplete types if processing_template_decl. 2019-05-15 Jakub Jelinek PR debug/90197 * cp-gimplify.c (genericize_cp_loop): Emit a DEBUG_BEGIN_STMT before the condition (or if missing or constant non-zero at the end of the loop. Emit a DEBUG_BEGIN_STMT before the increment expression if any. Don't call protected_set_expr_location on incr if it already has a location. 2019-05-10 Jakub Jelinek PR pch/90326 * config-lang.in (gtfiles): Remove c-family/c-lex.c, add c-family/c-cppbuiltin.c. 2019-08-15 Jonathan Wakely Backport from mainline. 2019-08-14 Jonathan Wakely PR c++/91436 * name-lookup.c (get_std_name_hint): Fix min_dialect field for complex_literals and make_unique entries. 2019-08-01 Marek Polacek Backported from mainline 2018-06-12 Jason Merrill PR c++/86098 - ICE with template placeholder for TTP. * typeck.c (structural_comptypes) [TEMPLATE_TYPE_PARM]: Check CLASS_PLACEHOLDER_TEMPLATE. 2019-06-11 Jakub Jelinek PR c++/90810 * init.c (constant_value_1): Handle VECTOR_CST DECL_INITIAL for !DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P decls like CONSTRUCTOR. 2019-05-22 Eric Botcazou Backport from mainline 2018-05-10 Eric Botcazou PR c++/85400 * decl2.c (adjust_var_decl_tls_model): New static function. (comdat_linkage): Call it on a variable. (maybe_make_one_only): Likewise. 2019-05-20 Jonathan Wakely Backported from mainline 2019-05-20 Jonathan Wakely PR c++/90532 Ensure __is_constructible(T[]) is false * method.c (is_xible_helper): Return error_mark_node for construction of an array of unknown bound. 2019-05-07 Marek Polacek Backported from mainline 2019-02-27 Marek Polacek PR c++/88857 - ICE with value-initialization of argument in template. * call.c (convert_like_real): Don't call build_value_init in template. 2019-03-25 Marek Polacek PR c++/89214 - ICE when initializing aggregates with bases. * typeck2.c (digest_init_r): Warn about object slicing instead of crashing. 2019-02-27 Marek Polacek PR c++/89511 - ICE with using-declaration and unscoped enumerator. * parser.c (cp_parser_using_declaration): For an unscoped enum only use its context if it's not a function declaration. 2019-03-25 Marek Polacek PR c++/89705 - ICE with reference binding with conversion function. * call.c (reference_binding): If the result of the conversion function is a prvalue of non-class type, use the cv-unqualified type. 2019-03-29 Marek Polacek PR c++/89876 - ICE with deprecated conversion. * call.c (convert_like_real): Only give warnings with tf_warning. 2019-04-30 Jakub Jelinek Backported from mainline 2019-04-19 Jakub Jelinek PR c++/90108 * decl.c (duplicate_decls): If remove is main variant and DECL_ORIGINAL_TYPE is some other type, remove a DECL_ORIGINAL_TYPE variant that has newdecl as TYPE_NAME if any. 2019-04-12 Jakub Jelinek PR c/89933 * decl.c (duplicate_decls): When newdecl's type is its main variant, don't try to remove it from the variant list, but instead assert it has no variants. 2019-03-29 Jakub Jelinek PR sanitizer/89869 * typeck.c: Include gimplify.h. (cp_build_modify_expr) : Unshare rhs before using it for second time. Formatting fixes. 2019-03-26 Jakub Jelinek PR c++/89796 * semantics.c (finish_omp_atomic): Add warning_sentinel for -Wunused-value around finish_expr_stmt call. 2019-03-22 Jakub Jelinek PR c++/60702 * cp-tree.h (get_tls_wrapper_fn): Remove declaration. (maybe_get_tls_wrapper_call): Declare. * decl2.c (get_tls_wrapper_fn): Make static. (maybe_get_tls_wrapper_call): New function. * typeck.c (build_class_member_access_expr): Handle accesses to TLS variables. * semantics.c (finish_qualified_id_expr): Likewise. (finish_id_expression_1): Use maybe_get_tls_wrapper_call. * pt.c (tsubst_copy_and_build): Likewise. 2019-03-21 Jakub Jelinek PR c++/89767 * parser.c (cp_parser_lambda_introducer): Add ids and first_capture_id variables, check for duplicates in this function. * lambda.c (add_capture): Don't check for duplicates nor use IDENTIFIER_MARKED. (register_capture_members): Don't clear IDENTIFIER_MARKED here. 2019-03-14 Jakub Jelinek PR c++/89512 * semantics.c (finish_qualified_id_expr): Reject variable templates. 2019-03-06 Jakub Jelinek PR c++/87148 * init.c (build_value_init_noctor): Ignore flexible array members. 2019-02-20 Jakub Jelinek PR c++/89403 * decl2.c (c_parse_final_cleanups): Move TREE_ASM_WRITTEN setting for flag_syntax_only from here... * semantics.c (expand_or_defer_fn_1): ... here. PR c++/89405 * decl.c (maybe_commonize_var): When clearing TREE_PUBLIC and DECL_COMMON, set DECL_INTERFACE_KNOWN. 2019-03-08 Jason Merrill PR c++/88820 - ICE with CTAD and member template used in DMI. * pt.c (do_class_deduction): Handle parm used as its own arg. PR c++/88869 - C++17 ICE with CTAD and explicit specialization. * pt.c (do_class_deduction): Don't include explicit specialization args in outer_args. PR c++/88419 - C++17 ICE with class template arg deduction. * pt.c (make_template_placeholder): Set TYPE_CANONICAL after CLASS_PLACEHOLDER_TEMPLATE. PR c++/88690 - C++17 ICE with empty base in aggregate. * typeck2.c (process_init_constructor_record): Skip trivial initialization of an empty base. PR c++/87921 - wrong error with inline static data member. * decl2.c (c_parse_final_cleanups): Don't force out uninstantiated inline static data members. PR c++/89381 - implicit copy and using-declaration. * class.c (classtype_has_move_assign_or_move_ctor_p): Don't consider op= brought in by a using-declaration. PR c++/89576 - if constexpr of lambda capture. * semantics.c (maybe_convert_cond): Do convert a non-dependent condition in a template. * typeck.c (condition_conversion): Handle being called in a template. PR c++/89422 - ICE with -g and lambda in default arg in template. * pt.c (tsubst_function_decl): SET_DECL_FRIEND_CONTEXT sooner. PR c++/87513 - 'sorry' mangling PMF template-id. * mangle.c (write_expression): Handle SCOPE_REF to BASELINK. PR c++/88183 - ICE with .* fold-expression. * pt.c (fold_expression) [DOTSTAR_EXPR]: Remove special handling. 2019-03-07 Jakub Jelinek PR c++/89585 * parser.c (cp_parser_asm_definition): Parse asm qualifiers even at toplevel, but diagnose them. 2019-02-26 Marek Polacek Backported from mainline 2019-02-11 Marek Polacek PR c++/89212 - ICE converting nullptr to pointer-to-member-function. * pt.c (tsubst_copy_and_build) : Return early for null member pointer value. 2019-02-22 Release Manager * GCC 8.3.0 released. 2019-02-14 David Malcolm 2019-02-13 David Malcolm Backport of r268847 from trunk. PR c++/89036 * class.c (add_method): Drop destructor assertion. 2019-02-14 David Malcolm Backport of r267957 from trunk. 2019-01-15 David Malcolm PR c++/88795 * pt.c (build_deduction_guide): Bail out if tsubst_arg_types fails. 2019-02-14 David Malcolm Backport of r262199 from trunk. 2018-06-27 David Malcolm PR c++/86329 * name-lookup.c (consider_binding_level): Filter out names that match anon_aggrname_p. 2019-02-14 David Malcolm Backport of r259720 from trunk. 2018-04-27 David Malcolm PR c++/85515 * name-lookup.c (consider_binding_level): Skip compiler-generated variables. * search.c (lookup_field_fuzzy_info::fuzzy_lookup_field): Flatten nested if statements into a series of rejection tests. Reject lambda-ignored entities as suggestions. 2019-02-11 Jason Merrill Revert: PR c++/88752 - ICE with lambda and constexpr if. * cp-tree.h (LAMBDA_EXPR_INSTANTIATED): New. * pt.c (tsubst_lambda_expr): Set it. (instantiated_lambda_fn_p): Check it. (enclosing_instantiation_of): Use it. 2019-02-11 Jason Merrill PR c++/89267 - change of error location. * pt.c (tsubst_copy_and_build): Do still clear expr location for instantiated thunk calls. 2019-02-08 Jason Merrill PR c++/88761 - ICE with reference capture of constant. * lambda.c (mark_const_cap_r): Do walk subtrees of DECL_EXPR for non-proxy decls. PR c++/88752 - ICE with lambda and constexpr if. * cp-tree.h (LAMBDA_EXPR_INSTANTIATED): New. * pt.c (tsubst_lambda_expr): Set it. (instantiated_lambda_fn_p): Check it. (enclosing_instantiation_of): Use it. PR c++/86943 - wrong code converting generic lambda to pointer. * pt.c (tsubst_copy_and_build): Don't propagate CALL_FROM_THUNK_P. 2019-02-07 Jakub Jelinek Backported from mainline 2019-02-05 Jakub Jelinek PR c++/89187 * optimize.c (maybe_thunk_body): Clear TREE_ADDRESSABLE on PARM_DECLs of the thunk. * lambda.c (maybe_add_lambda_conv_op): Likewise. 2019-01-30 Jakub Jelinek PR c++/88988 * lambda.c (is_capture_proxy): Don't return true for DECL_OMP_PRIVATIZED_MEMBER artificial vars. 2019-01-24 Jakub Jelinek PR c++/88976 * semantics.c (finish_omp_cancel): Use maybe_convert_cond when not in template or build_x_binary_op otherwise. 2019-01-21 Jakub Jelinek PR c++/88949 * optimize.c (cxx_copy_decl): New function. (clone_body): Use it instead of copy_decl_no_change. PR sanitizer/88901 * typeck.c (cp_build_binary_op): Don't instrument SANITIZE_POINTER_COMPARE if processing_template_decl. (pointer_diff): Similarly for SANITIZE_POINTER_SUBTRACT. 2019-02-06 Marek Polacek Backport from mainline 2019-02-05 Marek Polacek PR c++/89158 - by-value capture of constexpr variable broken. * call.c (convert_like_real) : Call mark_exp_read instead of mark_rvalue_use. Backport from mainline 2019-01-31 Marek Polacek PR c++/88983 - ICE with switch in constexpr function. * constexpr.c (cxx_eval_switch_expr): Use SWITCH_COND and SWITCH_BODY. (cxx_eval_constant_expression) : Don't look for the label in the else branch if we found it in the then branch. Backport from mainline 2019-01-30 Marek Polacek PR c++/89119 - ICE with value-initialization in template. * pt.c (tsubst_copy_and_build): Handle RANGE_EXPR. Backport from mainline 2019-01-27 Marek Polacek PR c++/89024 - ICE with incomplete enum type. * call.c (standard_conversion): When converting an ARITHMETIC_TYPE_P to an incomplete type, return NULL. 2019-02-05 Marek Polacek Backported from mainline 2019-01-31 Marek Polacek PR c++/89083, c++/80864 - ICE with list initialization in template. * decl.c (reshape_init_r): Don't reshape a digested initializer. Return the initializer for COMPOUND_LITERAL_P. 2019-01-27 Jason Merrill PR c++/86740, ICE with constexpr if and nested generic lambdas. * tree.c (cp_walk_subtrees): Handle LAMBDA_EXPR. PR c++/87075 - ICE with constexpr array initialization. * constexpr.c (cxx_eval_vec_init_1): Handle trivial initialization. * pt.c (tsubst) [TEMPLATE_TYPE_PARM]: Use TEMPLATE_PARM_DESCENDANTS. 2019-01-17 Nathan Sidwell PR c++/86610 * semantics.c (process_outer_var_ref): Only skip dependent types in templates. 2019-01-08 Jakub Jelinek Backported from mainline 2018-12-20 Jakub Jelinek PR c++/88180 * parser.c (cp_parser_class_specifier_1): If cp_parser_check_type_definition fails, skip default arguments, NSDMIs, etc. like for erroneous template args. 2018-12-19 Jakub Jelinek PR c++/87934 * constexpr.c (cxx_eval_constant_expression) : Do re-process TREE_CONSTANT CONSTRUCTORs if they aren't reduced constant expressions. 2018-12-17 Jakub Jelinek PR c++/88410 * cp-gimplify.c (cp_fold) : For offsetof-like folding, call maybe_constant_value on val to see if it is INTEGER_CST. 2018-12-14 Jakub Jelinek PR c++/82294 PR c++/87436 * init.c (build_vec_init): Change num_initialized_elts type from int to HOST_WIDE_INT. Build a RANGE_EXPR if e needs to be repeated more than once. 2018-12-07 Jakub Jelinek PR c++/86669 * call.c (make_temporary_var_for_ref_to_temp): Call pushdecl even for automatic vars. PR c++/87506 * constexpr.c (adjust_temp_type): Handle EMPTY_CLASS_EXPR. 2018-12-04 Jakub Jelinek PR c++/88103 * typeck.c (build_class_member_access_expr): If unary_complex_lvalue turned xvalue_p into non-xvalue_p, call move on it. 2018-11-27 Jakub Jelinek PR c++/88181 * class.c (fixup_attribute_variants): Also propagate TYPE_PACKED to variants. 2018-11-21 Jakub Jelinek PR c++/88122 * method.c (maybe_explain_implicit_delete): If FUNCTION_FIRST_USER_PARMTYPE (decl) is NULL, set const_p to false instead of ICEing. 2018-01-02 Segher Boessenkool Backport from trunk 2018-12-06 Segher Boessenkool PR inline-asm/55681 * parser.c (cp_parser_asm_definition): Update grammar. Allow any combination of volatile and goto, in any order, without repetitions. Backport from trunk 2018-12-06 Segher Boessenkool * cp-tree.h (finish_asm_stmt): Update declaration. * parser.c (cp_parser_asm_definition): Detect the inline keyword after asm. Pass a flag for it to finish_asm_stmt. * pt.c (tsubst_expr): Pass the ASM_INLINE_P flag to finish_asm_stmt. * semantics.c (finish_asm_stmt): Add inline_p parameter. Use it to set ASM_INLINE_P. Backport from trunk 2018-12-19 Segher Boessenkool * parser.c (cp_parser_asm_definition): Rewrite the loop to work without "done" boolean variable. Backport from trunk 2018-12-19 Segher Boessenkool * parser.c (cp_parser_asm_definition): Rewrite the loop to work without "done" boolean variable. * parser.c (cp_parser_asm_definition): Keep track of the location each asm qualifier is first seen; use that to give nicer "duplicate asm qualifier" messages. Backport from trunk 2018-12-19 Segher Boessenkool * parser.c (cp_parser_asm_definition) : Give a more specific error message (instead of just falling through). Backport from trunk 2018-12-10 Segher Boessenkool * parser.c (cp_parser_asm_definition): Do not allow any asm qualifiers on top-level asm. 2018-12-13 Nathan Sidwell PR c++/87531 * class.c (finish_struct): Set DECL_CONTEXT of template assign op. * name-lookup.c (get_class_binding_direct): Don't strip using-decl of overload here. * parser.c (cp_parser_postfix_expression): Cope with using decl in overload set. * semantics.c (finish_id_expr): Likewise. 2018-12-04 Marek Polacek Backported from mainline 2018-11-26 Marek Polacek PR c++/88120 - ICE when calling save_expr in a template. * typeck.c (cp_build_binary_op): Call cp_save_expr instead of save_expr. 2018-11-29 Nathan Sidwell PR c++/87531 * class.c (finish_struct): In a template, add artificial using decl for operator=. 2018-11-15 Nathan Sidwell PR c++/86246 PR c++/87989 * typeck.c (finish_class_member_access_expr): Conversion operator to dependent type is dependent. 2018-11-05 Jakub Jelinek Backported from mainline 2018-10-24 Jakub Jelinek PR c++/86288 * parser.c (cp_parser_std_attribute): Canonicalize attr_ns, and when :: is not present and attr_ns non-NULL, canonicalize also attr_id. (cp_parser_attribute_spec): Fix comment typo. 2018-10-23 Tom de Vries backport from trunk: 2018-07-31 Tom de Vries PR debug/86687 * optimize.c (update_cloned_parm): Copy DECL_BY_REFERENCE. 2018-10-11 Jakub Jelinek PR c++/87582 * typeck.c (maybe_warn_about_returning_address_of_local): If whats_returned is a structured binding identifier and the structured binding is a reference, recurse on its initializer. 2018-10-10 Paolo Carlini PR c++/84940 * semantics.c (finish_unary_op_expr): Check return value of build_x_unary_op for error_mark_node. 2018-10-03 Martin Liska Backport from mainline 2018-10-03 Martin Liska PR gcov-profile/86109 * parser.c (cp_parser_lambda_declarator_opt): Set DECL_LAMBDA_FUNCTION for lambdas. 2018-09-24 Paolo Carlini PR c++/85070 * method.c (lazily_declare_fn): During error-recovery add_method may return false. 2018-09-18 Nathan Sidwell PR c++/86881 * name-lookup.c (check_local_shadow): Ignore auto types. 2018-09-13 Ville Voutilainen Backport from mainline 2018-09-13 Ville Voutilainen gcc/cp PR c++/87093 * method.c (constructible_expr): We're in an unevaluated context in all cases, not just for class targets. testsuite/ PR c++/87093 * g++.dg/ext/is_constructible2.C: New. 2018-09-05 Pádraig Brady PR c++/87185 * lambda.c (prune_lambda_captures): Protect against const_vars.get returning NULL. 2018-09-05 Jakub Jelinek Backported from mainline 2018-08-29 Jakub Jelinek PR c++/87095 * decl.c (begin_destructor_body): If current_class_type has virtual bases and the primary base is nearly empty virtual base, voidify clearing of vptr and make it conditional on in-charge argument. 2018-08-08 Jakub Jelinek PR c++/86836 * pt.c (tsubst_expr): For structured bindings, call tsubst_decomp_names before tsubst_init, not after it. PR c++/86738 * constexpr.c (cxx_eval_binary_expression): For arithmetics involving NULL pointer set *non_constant_p to true. (cxx_eval_component_reference): For dereferencing of a NULL pointer, set *non_constant_p to true and return t. 2018-08-03 Jason Merrill PR c++/86706 * class.c (build_base_path): Use currently_open_class. 2018-08-31 Nathan Sidwell PR c++/87155 PR c++/84707 * name-lookup.c (name_lookup::search_namespace): Don't look at inlines when searching for NULL names. 2018-08-29 Jakub Jelinek PR c++/87122 * pt.c (tsubst_expr) : If processing_template_decl and decl is structured binding decl, call cp_finish_decomp. 2018-08-17 Richard Biener Backport from mainline 2018-08-02 Richard Biener PR c++/86763 * class.c (layout_class_type): Copy TYPE_TYPELESS_STORAGE to the CLASSTYPE_AS_BASE. 2018-08-10 Jason Merrill PR c++/86728 - C variadic generic lambda. * parser.c (cp_parser_parameter_declaration): Don't turn 'auto' into a pack if it's followed by a declarator-id. 2018-08-08 Marek Polacek Backport from mainline 2018-08-06 Marek Polacek PR c++/86767 * constexpr.c (cxx_eval_statement_list): Handle continue. 2018-08-01 Marek Polacek PR c++/86190 - bogus -Wsign-conversion warning * typeck.c (cp_build_binary_op): Add a warning sentinel. 2018-07-26 Release Manager * GCC 8.2.0 released. 2018-07-17 Jason Merrill PR c++/86480 - nested variadic lambda and constexpr if. * pt.c (find_parameter_packs_r) [IF_STMT]: Don't walk into IF_STMT_EXTRA_ARGS. 2018-07-16 Jakub Jelinek PR c++/3698 PR c++/86208 * cp-gimplify.c (cp_genericize_r): When using extern_decl_map, or in TREE_USED flag from stmt to h->to. 2018-07-13 Nathan Sidwell PR c++/86374 * pt.c (lookup_template_class_1): Use tsubst_aggr_type for contexts that are classes. 2018-07-12 Jakub Jelinek * decl2.c (cplus_decl_attributes): Don't diagnose vars without mappable type here, instead add "omp declare target implicit" attribute. Add that attribute instead of "omp declare target" also when processing_template_decl. * decl.c (cp_finish_decl): Diagnose vars without mappable type here, and before calling cp_omp_mappable_type call complete_type. 2018-07-10 Jakub Jelinek PR sanitizer/86406 * cp-gimplify.c (cp_maybe_instrument_return): Skip trailing DEBUG_BEGIN_STMTs. 2018-07-04 Ville Voutilainen Backport from mainline 2018-07-04 Ville Voutilainen gcc/cp/ PR c++/86398 * method.c (is_trivially_xible): Return false if is_xible_helper returns a NULL_TREE. 2018-07-03 Jason Merrill PR c++/86378 - functional cast in noexcept-specifier. * tree.c (strip_typedefs_expr) [TREE_LIST]: Fix iteration. * name-lookup.c (do_push_to_top_level): Don't allocate current_lang_base. (do_pop_from_top_level): Release current_lang_base. 2018-06-26 Jason Merrill PR c++/86320 - memory-hog with std::array of pair * typeck2.c (process_init_constructor_array): If zero-initialization is fine for one element, we're done. PR c++/80290 - memory-hog with std::pair. * pt.c (type_unification_real): Skip non-dependent conversion check for a nested list argument. (braced_init_depth): New. 2018-06-26 Jakub Jelinek PR c++/86291 * parser.c (cp_parser_omp_for_loop_init): Change for_block argument type from vec * to vec *&. 2018-06-22 Jason Merrill PR c++/86219 - ICE with erroneous initializer in template. * constexpr.c (fold_non_dependent_expr): Add complain parm. * typeck2.c (store_init_value): Pass tf_warning_or_error. 2018-06-21 Jason Merrill PR c++/86182 - ICE with anonymous union passed to template. * pt.c (tsubst_expr) [DECL_EXPR]: Handle an anonymous union type used to declare a named variable. 2018-06-20 Nathan Sidwell PR c++/85634 - tsubst ICE on unmarked lookup * parser.c (cp_parser_primary_expression): Keep lookup in template. 2018-06-18 Jason Merrill PR c++/86200 - ICE with unexpanded pack in lambda parameter. * pt.c (find_parameter_packs_r) [LAMBDA_EXPR]: Also look into the function type. PR c++/81060 - ICE with unexpanded parameter pack. * pt.c (check_for_bare_parameter_packs): Add loc parameter. * decl.c (grokdeclarator): Call it for qualifying_scope. 2018-06-15 Jason Merrill PR c++/86147 - wrong capture for template argument. * expr.c (mark_use): Look through NOP_EXPR. PR c++/82882 - ICE with lambda in template default argument. * lambda.c (record_null_lambda_scope): New. * pt.c (tsubst_lambda_expr): Use it. * name-lookup.c (do_pushtag): Don't give a lambda DECL_CONTEXT of a function that isn't open. * tree.c (maybe_warn_parm_abi): Inform the location of the class. 2018-06-13 Jason Merrill PR c++/86094 - wrong code with defaulted move ctor. * class.c (classtype_has_non_deleted_move_ctor): New. * tree.c (maybe_warn_parm_abi, type_has_nontrivial_copy_init): Handle v12 breakage. 2018-06-11 Jason Merrill PR c++/85792 -Wctor-dtor-privacy and inherited constructor. * class.c (maybe_warn_about_overly_private_class): Handle inherited constructors. PR c++/85963 - -Wunused-but-set with ?: in template. * pt.c (tsubst_copy_and_build) [COND_EXPR]: Call mark_rvalue_use. PR c++/61806 - missed SFINAE with partial specialization. * cp-tree.h (deferring_access_check_sentinel): Add deferring_kind parameter to constructor. * pt.c (instantiate_class_template_1): Enable access checking before call to most_specialized_partial_spec. PR c++/85765 - SFINAE and non-type default template arg. * pt.c (type_unification_real): Do full semantic processing if substituting a partial args list replaces all template parms. PR c++/85764 - bogus 'this' not captured error. * lambda.c (resolvable_dummy_lambda): Use nonlambda_method_basetype. (nonlambda_method_basetype): Handle NSDMI. PR c++/85807 - ICE with call in template NSDMI. * init.c (get_nsdmi): Use push_to/pop_from_top_level. * tree.c (bot_manip): Don't set_flags_from_callee in a template. PR c++/85815 - reference to member of enclosing template. * search.c (lookup_base): Use currently_open_class. (lookup_member): Use it regardless of -fconcepts. * parser.c (cp_parser_postfix_dot_deref_expression): Check it. PR c++/86094 - wrong code with defaulted move ctor. * tree.c (type_has_nontrivial_copy_init): Fix move ctor handling. 2018-06-06 Jason Merrill PR c++/86060 - ICE on range for with -std=c++98. * parser.c (cp_parser_init_statement): Don't clobber *decl after pedwarn. 2018-06-05 Marek Polacek Backported from mainline 2018-05-24 Marek Polacek PR c++/85847 * init.c (build_new_1): Use fold_non_dependent_expr. Use a dedicated variable for its result. Fix a condition. (build_new): Use fold_non_dependent_expr. Tweak a condition. 2018-06-05 Marek Polacek PR c++/85976 * tree.c (cp_tree_equal): Handle USING_DECL. 2018-06-05 Jason Merrill PR c++/85731 - wrong error with qualified-id in template. * semantics.c (finish_qualified_id_expr): build_qualified_name for unbound names in the current class. 2018-06-03 Jason Merrill PR c++/85739 - ICE with pointer to member template parm. * cvt.c (perform_qualification_conversions): Use cp_fold_convert. PR c++/85761 - ICE with ill-formed use of const outer variable. * expr.c (mark_use): Handle location wrappers. 2018-06-01 Jason Merrill PR c++/85873 - constant initializer_list array not in .rodata. * call.c (convert_like_real): Treat the backing array for an initializer_list like a C99 compound literal. 2018-05-30 Jakub Jelinek Backported from mainline 2018-05-29 Jakub Jelinek PR c++/85952 * init.c (build_aggr_init): For structured binding initialized from array call mark_rvalue_use on the initializer. 2018-05-11 Jakub Jelinek PR c/85696 * cp-tree.h (cxx_omp_predetermined_sharing_1): New prototype. * cp-gimplify.c (cxx_omp_predetermined_sharing): New wrapper around cxx_omp_predetermined_sharing_1. Rename old function to ... (cxx_omp_predetermined_sharing_1): ... this. * semantics.c (finish_omp_clauses): Use cxx_omp_predetermined_sharing_1 instead of cxx_omp_predetermined_sharing. 2018-05-10 Jakub Jelinek PR c++/85662 * cp-gimplify.c (cp_fold): Use fold_offsetof rather than fold_offsetof_1, pass TREE_TYPE (x) as TYPE to it and drop the fold_convert. 2018-05-24 Jason Merrill PR c++/85842 - -Wreturn-type, constexpr if and generic lambda. * pt.c (tsubst_lambda_expr): Copy current_function_returns_* to generic lambda. PR c++/85864 - literal template and default template arg. * pt.c (instantiation_dependent_r): Handle NONTYPE_ARGUMENT_PACK. PR c++/81420 - not extending temporary lifetime. * call.c (extend_ref_init_temps_1): Handle ARRAY_REF. * class.c (build_base_path): Avoid redundant move of an rvalue. 2018-05-22 Jason Merrill PR c++/85866 - error with .* in default template arg. * pt.c (tsubst_copy_and_build): Handle partial instantiation. 2018-05-18 Cesar Philippidis Backport from mainline 2018-05-18 Cesar Philippidis PR c++/85782 * cp-gimplify.c (cp_genericize_r): Call genericize_omp_for_stmt for OACC_LOOPs. 2018-05-08 Jason Merrill PR c++/85706 - class deduction under decltype * pt.c (for_each_template_parm_r): Handle DECLTYPE_TYPE. Clear *walk_subtrees whether or not we walked into the operand. (type_uses_auto): Only look at deduced contexts. 2018-05-08 Marek Polacek PR c++/85695 * semantics.c (finish_if_stmt_cond): See through typedefs. 2018-05-07 Jason Merrill PR c++/85646 - lambda visibility. * decl2.c (determine_visibility): Don't mess with template arguments from the containing scope. (vague_linkage_p): Check DECL_ABSTRACT_P before looking at a 'tor thunk. PR c++/85618 - ICE with initialized VLA. * tree.c (vla_type_p): New. * typeck2.c (store_init_value, split_nonconstant_init_1): Check it rather than array_of_runtime_bound_p. 2018-05-04 Jason Merrill PR c++/85305 - pack in lambda init-capture. * parser.c (cp_parser_initializer): Add subexpression_p parm; don't check_for_bare_parameter_packs in a subexpression. (cp_parser_lambda_introducer): Use it. 2018-05-02 Release Manager * GCC 8.1.0 released. 2018-05-02 Jason Merrill PR c++/85587 - error with scoped enum in template. * semantics.c (finish_qualified_id_expr): Don't return an unqualified IDENTIFIER_NODE. 2018-04-30 Jason Merrill PR c++/85580 - extern "C" and local variables * name-lookup.c (check_extern_c_conflict): Ignore local decls. 2018-04-27 Jakub Jelinek PR c++/85553 * init.c (build_zero_init_1): For zero initialization of NULLPTR_TYPE_P type use build_int_cst directly. 2018-04-27 Jason Merrill PR c++/85545 - ICE with noexcept PMF conversion. * cvt.c (cp_fold_convert): Pass PMF CONSTRUCTORs to build_ptrmemfunc. * typeck.c (build_ptrmemfunc): Don't build a NOP_EXPR for zero adjustment. (build_ptrmemfunc_access_expr): Special-case CONSTRUCTORs. 2018-04-25 Nathan Sidwell PR c++/85437 PR c++/49171 * cp-tree.h (REINTERPRET_CAST_P): New. * constexpr.c (cxx_eval_constant_expression) : Reject REINTERPET_CAST_P conversions. Use cplus_expand_constant for non-trivial PTRMEM_CST cases. * typeck.c (build_nop_reinterpret): New. (build_reinterpret_cast_1): Use it. Set REINTERPRET_CAST_P on NOP_EXPRs returned by cp_convert. 2018-04-23 Jason Merrill PR c++/69560 - wrong alignof(double) on x86. CWG 1879 - Inadequate definition of alignment requirement. * cp-tree.h (ALIGNOF_EXPR_STD_P): New. * typeck.c (cxx_sizeof_or_alignof_type): Add std_alignof parm. (cxx_sizeof_expr, cxx_sizeof_nowarn, cxx_alignas_expr) (cxx_alignof_expr): Pass it. * parser.c (cp_parser_unary_expression): Pass it. * pt.c (tsubst_copy): Copy it. (tsubst_copy_and_build): Pass it. * decl.c (fold_sizeof_expr): Pass it. 2018-04-23 Jakub Jelinek Jason Merrill PR c++/85470 - wrong error with static data member. * decl.c (check_initializer): Check DECL_INITIALIZED_IN_CLASS_P. * typeck2.c (store_init_value): Likewise. 2018-04-20 Jakub Jelinek PR c++/85462 * cp-tree.h (tinst_level): Remove in_system_header_p member, change refcount member from unsigned char to unsigned short, add refcount_infinity static data member, adjust comments. * pt.c (tinst_level::refcount_infinity): Define. (inc_refcount_use): Remove assert, don't increment if refcount is already refcount_infinity, adjust comment. (dec_refcount_use): Remove assert, don't decrement if refcount is refcount_infinity, adjust comment. (push_tinst_level_loc): Formatting fix. 2018-04-19 Paolo Carlini PR c++/84611 * pt.c (lookup_template_class_1): Check pushtag return value for error_mark_node. 2018-04-19 Alexandre Oliva PR c++/80290 * cp-tree.h (tinst_level::free): Fix whitespace. 2018-04-18 Paolo Carlini PR c++/84630 * pt.c (tsubst_lambda_expr): Check begin_lambda_type return value for error_mark_node. 2018-04-18 Jakub Jelinek PR c++/84463 * typeck.c (cp_build_addr_expr_1): Move handling of offsetof-like tricks from here to ... * cp-gimplify.c (cp_fold) : ... here. Only use it if INDIRECT_REF's operand is INTEGER_CST cast to pointer type. 2018-04-18 Alexandre Oliva PR c++/80290 * cp-tree.h (struct tinst_level): Split decl into tldcl and targs. Add private split_list_p, tree_list_p, and not_list_p inline const predicates; to_list private member function declaration; free public member function declaration; list_p, get_node and maybe_get_node accessors, and refcount data member. Narrow errors to unsigned short. * error.c (print_instantiation_full_context): Use new accessors. (print_instantiation_partial_context_line): Likewise. Drop const from tinst_level-typed parameter. * mangle.c (mangle_decl_string): Likewise. * pt.c (freelist): New template class. (tree_list_freelist_head): New var. (tree_list_freelist): New fn, along with specializations. (tinst_level_freelist_head): New var. (pending_template_freelist_head): Likewise. (tinst_level_freelist, pending_template_freelist): New fns. (tinst_level::to_list, tinst_level::free): Define. (inc_refcount_use, dec_refcount_use): New fns for tinst_level. (set_refcount_ptr): New template fn. (add_pending_template): Adjust for refcounting, freelists and new accessors. (neglectable_inst_p): Take a NULL d as a non-DECL. (limit_bad_template_recursion): Use new accessors. (push_tinst_level): New overload to create the list. (push_tinst_level_loc): Make it static, split decl into two args, adjust tests and initialization to cope with split lists, use freelist, adjust for refcounting. (push_tinst_level_loc): New wrapper with the old interface. (pop_tinst_level): Adjust for refcounting. (record_last_problematic_instantiation): Likewise. (reopen_tinst_level): Likewise. Use new accessors. (instantiate_alias_template): Adjust for split list. (fn_type_unification): Likewise. (get_partial_spec_bindings): Likewise. (instantiate_pending_templates): Use new accessors. Adjust for refcount. Release pending_template to freelist. (instantiating_current_function_p): Use new accessors. 2018-04-16 Alexandre Oliva PR c++/85039 * parser.c (cp_parser_builtin_offset): Reject type definitions. * mangle.c (nested_anon_class_index): Avoid crash returning -1 if we've seen errors. 2018-04-12 David Malcolm PR c++/85385 * name-lookup.c (macro_use_before_def::maybe_make): New function, checking that the use is indeed before the definition. (macro_use_before_def::macro_use_before_def): Make private. (macro_use_before_def::~macro_use_before_def): Make private. Move check for UNKNOWN_LOCATION to macro_use_before_def::maybe_make. (lookup_name_fuzzy): Call macro_use_before_def::maybe_make rather than using new directly. 2018-04-12 Jason Merrill PR c++/85356 - ICE with pointer to member function. * pt.c (maybe_instantiate_noexcept): Do instantiate in templates if flag_noexcept_type. Build the new spec within the function context. * except.c (build_noexcept_spec): Do get constant value in templates if flag_noexcept_type. * decl.c (check_redeclaration_exception_specification): Don't instantiate noexcept on a dependent declaration. 2018-04-12 Marek Polacek PR c++/85258 * constexpr.c (reduced_constant_expression_p): Return false for null trees. 2018-04-11 Marek Polacek PR c++/85032 * constexpr.c (potential_constant_expression_1): Consider conversions from classes to literal types potentially constant. 2018-04-10 Paolo Carlini PR c++/70808 * init.c (build_zero_init_1): Handle NULLPTR_TYPE_P being true of the type like TYPE_PTR_OR_PTRMEM_P. 2018-04-10 Jason Merrill PR debug/65821 - wrong location for main(). * call.c (clear_location_r, convert_default_arg): Revert. * tree.c (break_out_target_exprs): Add clear_location parm. (struct bot_data): New. (bot_manip): Clear location if requested. * init.c (get_nsdmi): Pass clear_location. 2018-04-10 David Malcolm PR c++/85110 * call.c (get_fndecl_argument_location): Make non-static. * cp-tree.h (get_fndecl_argument_location): New decl. * typeck.c (convert_for_assignment): When complaining due to conversions for an argument, show the location of the parameter within the decl. 2018-04-10 Jakub Jelinek PR c++/85312 - P0962 cleanup * parser.c (cp_parser_perform_range_for_lookup): Remove unreachable diagnostics. 2018-04-10 Jason Merrill PR debug/65821 - wrong location for main(). * call.c (clear_location_r): New. (convert_default_arg): Use it. * tree.c (bot_manip): Remove builtin_LINE/FILE handling. PR c++/85285 - ICE with flexible array after substitution. * pt.c (instantiate_class_template_1): Check for flexible array in union. 2018-04-09 Paolo Carlini PR c++/85227 * decl.c (cp_finish_decomp): In a template, if the type is incomplete issue a pedwarn and defer trying to do bindings. 2018-04-09 Jason Merrill PR c++/85279 - dump_expr doesn't understand decltype. * error.c (dump_expr): Handle DECLTYPE_TYPE. PR c++/85262 - ICE with redundant qualification on constructor. * call.c (build_new_method_call_1): Move make_args_non_dependent after A::A() handling. PR c++/85277 - ICE with invalid offsetof. * semantics.c (finish_offsetof): Avoid passing non-DECL to %qD. Adjust -Winvalid-offsetof diagnostic to say conditionally supported. PR c++/85264 - ICE with excess template-parameter-list. * parser.c (cp_parser_check_template_parameters): Add template_id_p parameter. Don't allow an extra template header if true. (cp_parser_class_head): Pass template_id_p. (cp_parser_elaborated_type_specifier): Likewise. (cp_parser_alias_declaration): Likewise. (cp_parser_check_declarator_template_parameters): Likewise. 2018-04-09 Jakub Jelinek PR c++/85194 * parser.c (cp_parser_simple_declaration): For structured bindings, if *maybe_range_for_decl is NULL after parsing it, set it to error_mark_node. 2018-04-09 Jason Merrill PR c++/85256 - ICE capturing pointer to VLA. * lambda.c (add_capture): Distinguish between variable-size and variably-modified types. 2018-04-06 Jason Merrill PR c++/85214 - ICE with alias, generic lambda, constexpr if. * pt.c (extract_locals_r): Remember local typedefs. 2018-04-06 David Malcolm PR c++/84269 * name-lookup.c (struct std_name_hint): Move out of get_std_name_hint; add field "min_dialect". (get_std_name_hint): Add min_dialect values to all initializers. Add , , , , , , , , , , , , , , and . Add fstream, ifstream, and ofstream to . Add istringstream, ostringstream, and stringstream to . Add basic_string to . Add tuple_element and tuple_size to . Add declval to . Fix ordering of and . Return a std_name_hint, rather than a const char *. (get_cxx_dialect_name): New function. (maybe_suggest_missing_std_header): Detect names that aren't yet available in the current dialect, and instead of suggesting a missing #include, warn about the dialect. 2018-04-06 Jakub Jelinek PR c++/85210 * pt.c (tsubst_decomp_names): Return error_mark_node and assert errorcount is set if tsubst doesn't return a VAR_DECL. 2018-04-06 David Malcolm PR c++/85021 * name-lookup.c (using_directives_contain_std_p): New function. (has_using_namespace_std_directive_p): New function. (suggest_alternatives_for): Simplify if/else logic using early returns. If no candidates were found, and there's a "using namespace std;" directive, call maybe_suggest_missing_std_header. (maybe_suggest_missing_header): Split later part of the function into.. (maybe_suggest_missing_std_header): New. 2018-04-06 Jason Merrill PR c++/85242 - ICE with class definition in template parm. * cp-tree.h (PROCESSING_REAL_TEMPLATE_DECL_P): False if processing_template_parmlist. PR c++/85240 - LTO ICE with using of undeduced auto fn. * cp-gimplify.c (cp_genericize_r): Discard using of undeduced auto. 2018-04-05 Jakub Jelinek PR c++/85209 * pt.c (tsubst_decomp_names): Don't fail or ICE if DECL_CHAIN (decl3) is not prev, if prev == decl. PR c++/85208 * decl.c (start_decl): For DECL_DECOMPOSITION_P decls, don't call maybe_apply_pragma_weak here... (cp_maybe_mangle_decomp): ... but call it here instead. 2018-04-05 Jason Merrill PR c++/85136 - ICE with designated init in template. * decl.c (maybe_deduce_size_from_array_init): Handle dependent designated initializer. (check_array_designated_initializer): Update ce->index with the constant value. PR c++/83808 - ICE with VLA initialization. * typeck2.c (process_init_constructor_array): Don't require a VLA initializer to have VLA type. 2018-04-05 Paolo Carlini PR c++/80956 * call.c (convert_like_real): Fail gracefully for a broken std::initializer_list, missing a definition. * name-lookup.c (do_pushtag): Tweak message, use %< and %>. 2018-04-05 Paolo Carlini PR c++/84792 * decl.c (grokdeclarator): Fix diagnostic about typedef name used as nested-name-specifier, keep type and TREE_TYPE (decl) in sync. 2018-04-05 Jason Merrill PR c++/82152 - ICE with class deduction and inherited ctor. * pt.c (do_class_deduction): Ignore inherited ctors. PR c++/84665 - ICE with array of empty class. * decl2.c (cp_check_const_attributes): Use fold_non_dependent_expr. PR c++/85228 - ICE with lambda in enumerator in template. * pt.c (bt_instantiate_type_proc): Don't assume CLASSTYPE_TEMPLATE_INFO is non-null. 2018-04-05 Ville Voutilainen Implement P0969 * decl.c (find_decomp_class_base): Check accessibility instead of declared access, adjust diagnostic. 2018-04-05 Ville Voutilainen Implement P0961 * decl.c (get_tuple_decomp_init): Check the templatedness of a member get. 2018-04-05 Jason Merrill PR c++/85200 - ICE with constexpr if in generic lambda. * pt.c (extract_locals_r): Don't record the local specs of variables declared within the pattern. 2018-04-05 Alexandre Oliva PR c++/84979 * pt.c (check_auto_in_tmpl_args): New. (tsubst_qualified_id): Use it to reject template args referencing auto for non-type templates. * parser.c (cp_parser_template_id): Likewise. * cp-tree.h (check_auto_in_tmpl_args): Declare. * typeck2.c (build_functional_cast): Report correct location for invalid use of auto. 2018-04-04 Jason Merrill PR c++/85215 - ICE with copy-init from conversion. * call.c (merge_conversion_sequences): Fix type of direct binding sequence. PR c++/84938 - ICE with division by ~-1. * call.c (set_up_extended_ref_temp): Call cp_fully_fold. PR c++/84936 - ICE with unexpanded pack in mem-initializer. * parser.c (cp_parser_mem_initializer_list): Call check_for_bare_parameter_packs. 2018-04-04 Jakub Jelinek PR inline-asm/85172 * constexpr.c (cxx_eval_builtin_function_call): For calls to builtin_valid_in_constant_expr_p functions, don't call cxx_eval_constant_expression if argument is not potential_constant_expression. PR c++/85146 * cp-tree.h (calculate_bases, calculate_direct_bases): Add complain argument. * semantics.c (calculate_bases): Add complain argument. Use complete_type_or_maybe_complain instead of just complete_type and return an empty vector if it fails. Move make_tree_vector () call after early return. Formatting fixes. (calculate_direct_bases): Likewise. Call release_tree_vector at the end. (dfs_calculate_bases_post, calculate_bases_helper): Formatting fixes. * pt.c (tsubst_pack_expansion): Adjust calculate_bases and calculate_direct_bases callers, formatting fixes. 2018-04-04 Jason Merrill PR c++/85006 - -fconcepts ICE with A return type * pt.c (tsubst_pack_expansion): Allow unsubstituted auto pack. PR c++/85200 - ICE with constexpr if in generic lambda. * tree.c (cp_walk_subtrees): Walk into DECL_EXPR in templates. PR c++/84221 - bogus -Wunused with attribute and template. * decl2.c (is_late_template_attribute): Handle unused and used normally on non-TYPE_DECL. PR c++/85135 - ICE with omitted template arguments. * decl.c (grokdeclarator): Catch deduced class type in trailing return type. PR c++/85133 - ICE with missing concept initializer. * decl.c (cp_finish_decl): If a concept initializer is missing, use true. PR c++/85118 - wrong error with generic lambda and std::bind. * call.c (add_template_conv_candidate): Disable if there are any call operators. PR c++/85141 - ICE with compound assignment and static member fn. * typeck.c (cp_build_modify_expr): Call decay_conversion for RHS of compound assignment. PR c++/85148 - ICE with 'this' in array NSDMI. * tree.c (replace_placeholders_r): Use handled_component_p. 2018-04-04 Ville Voutilainen PR c++/65923 * decl.c (grokfndecl): Handle standard UDL diagnostics here.. * parser.c (cp_parser_unqualified_id): ..not here. 2018-04-04 Alexandre Oliva PR c++/84943 * typeck.c (cp_build_addr_expr_1): Mark FUNCTION_DECL as used. * decl2.c (mark_used): Return without effects if tf_conv. 2018-04-03 Jason Merrill PR c++/85092 - C++17 ICE with unused list constructor. * call.c (conv_binds_ref_to_prvalue): Also count ck_identity from a TARGET_EXPR. PR c++/85113 - ICE with constexpr and __builtin_constant_p. * constexpr.c (cxx_eval_builtin_function_call): Only defer __builtin_constant_p if ctx->quiet. 2018-04-03 Paolo Carlini PR c++/84768 * pt.c (rewrite_template_parm): If the first argument is error_mark_node return it immediately. (build_deduction_guide): Check the return value of the latter for error_mark_node. (do_class_deduction): Check the return value of the latter. 2018-04-03 Jason Merrill * semantics.c (finish_if_stmt_cond): Use instantiation_dependent_expression_p. PR c++/85149 - generic lambda and constexpr if. * pt.c (build_extra_args, add_extra_args): Split from tsubst_pack_expansion. (tsubst_expr) [IF_STMT]: Use them. * cp-tree.h (IF_STMT_EXTRA_ARGS): New. * typeck.c (merge_types): Limit matching attribute shortcut to the default case. 2018-04-03 Jakub Jelinek PR c++/85147 * pt.c (fixed_parameter_pack_p_1): Punt if parm is error_mark_node. PR c++/85140 * name-lookup.c (handle_namespace_attrs): Return early if attributes is error_mark_node. PR c++/85134 * decl.c (cp_finish_decl): If ensure_literal_type_for_constexpr_object fails, after clearing DECL_DECLARED_CONSTEXPR_P don't return early, instead for static data members clear init and set DECL_EXTERNAL. 2018-04-02 Jason Merrill PR c++/64095 - auto... parameter pack. * parser.c (cp_parser_parameter_declaration): Handle turning autos into packs here. (cp_parser_parameter_declaration_list): Not here. 2018-03-31 Alexandre Oliva PR c++/85027 * class.c (instantiate_type): Peel off SAVE_EXPR before BASELINK. 2018-03-30 Jason Merrill * typeck2.c (process_init_constructor_record): Use init_list_type_node for the CONSTRUCTOR around an anonymous union designated initializer. 2018-03-30 Jakub Jelinek PR c++/84791 * semantics.c (finish_omp_reduction_clause): If OMP_CLAUSE_REDUCTION_PLACEHOLDER is error_mark_node, return true even if processing_template_decl. 2018-03-29 David Malcolm PR c++/84269 * name-lookup.c (get_std_name_hint): Add names from , , and . 2018-03-29 Jason Merrill PR c++/85093 - too many template args with pack expansion. * pt.c (coerce_template_parms): Keep pack expansion args that will need to be empty. 2018-03-29 Jason Merrill * pt.c (build_non_dependent_expr): Propagate expr location. 2018-03-27 Jason Merrill PR c++/85060 - wrong-code with call to base member in template. * search.c (any_dependent_bases_p): Check uses_template_parms rather than processing_template_decl. 2018-03-29 David Malcolm PR c++/85110 * typeck.c (convert_for_assignment): When complaining due to conversions for an argument, attempt to use the location of the argument. 2018-03-28 Paolo Carlini PR c++/85028 * pt.c (tsubst_default_argument): Early return if the type of the parameter is erroneous. 2018-03-28 Alexandre Oliva PR c++/84973 * decl2.c (note_vague_linkage_fn): Don't defer uninstantiated templates. PR c++/84968 * tree.c (strip_typedefs_expr): Reject STATEMENT_LISTs. 2018-03-27 Paolo Carlini PR c++/85067 * method.c (defaulted_late_check): Partially revert r253321 changes, do not early return upon error. 2018-03-27 Jakub Jelinek PR c++/85077 * cp-gimplify.c (cp_fold) : For ctors with vector type call fold to generate VECTOR_CSTs when possible. PR c++/85076 * tree.c (cp_build_reference_type): If to_type is error_mark_node, return it right away. 2018-03-27 Volker Reichelt * search.c (check_final_overrider): Use inform instead of error for the diagnostics of the overridden functions. Tweak wording. 2018-03-27 Jakub Jelinek PR c++/85068 * class.c (update_vtable_entry_for_fn): Don't ICE if base_binfo is NULL. Assert if thunk_binfo is NULL then errorcount is non-zero. 2018-03-27 Paolo Carlini Jason Merrill PR c++/84632 * init.c (build_aggr_init): When initializing from array, reject anything but CONSTRUCTORs and TARGET_EXPRs. (build_vec_init): Handle separately ARRAY_TYPEs. 2018-03-26 Jason Merrill PR c++/85062 - ICE with alignas in wrong place. * decl.c (grokdeclarator): Ignore attributes on type-specifiers here. PR c++/85049 - ICE with __integer_pack. * pt.c (unify_pack_expansion): Don't try to deduce generated packs. * cp-tree.h (TEMPLATE_PARM_P): New. 2018-03-23 Jason Merrill PR c++/78489 - wrong SFINAE behavior. PR c++/84489 * pt.c (type_unification_real): Don't defer substitution failure. 2018-03-23 Jakub Jelinek PR c++/85015 * decl.c (compute_array_index_type): Set osize to mark_rvalue_use result. PR c++/84942 * pt.c (tsubst_copy_and_build) : Replace cp_build_unary_op call with gcc_unreachable (). 2018-03-23 Marek Polacek PR c++/85045 * cxx-pretty-print.c (cxx_pretty_printer::multiplicative_expression): Handle EXACT_DIV_EXPR and RDIV_EXPR. Tweak condition. (cxx_pretty_printer::expression): Handle EXACT_DIV_EXPR and RDIV_EXPR. 2018-03-23 Ville Voutilainen Implement P0962 * parser.c (cp_parser_perform_range_for_lookup): Change the condition for deciding whether to use members. 2018-03-23 Marek Polacek PR c++/85033 * semantics.c (finish_offsetof): Don't allow CONST_DECLs. 2018-03-23 Alexandre Oliva PR c++/71251 * parser.c (cp_parser_alias_declaration): Call parser_check_template_parameters. PR c++/84789 * pt.c (resolve_typename_type): Drop assert that stopped simplification to template-independent types. Add assert to verify the initial scope is template dependent. * parser.c (cp_parser_parse_and_diagnose_invalid_type_name): Reparse the id expression as a type-name, not a declarator. PR c++/84729 * init.c (build_vec_init): Error at parenthesized array init. PR c++/84610 PR c++/84642 PR c++/84942 * cp-tree.h (temp_override): New template class, generalizing a cleanup that was only used... * parser.c (cp_parser_parameter_declaration_clause): ... here for auto_is_implicit_function_template_parm_p. (cp_parser_gnu_attributes_opt): Use it here as well. (cp_parser_std_attribute): Likewise. 2018-03-22 Marek Polacek PR c++/84854 * semantics.c (finish_if_stmt_cond): Check if the type of the condition is boolean. 2018-03-21 Jason Merrill PR c++/81311 - wrong C++17 overload resolution. * call.c (build_user_type_conversion_1): Remove C++17 code. (conv_binds_ref_to_prvalue): New. (build_over_call): Handle C++17 copy elision. (build_special_member_call): Only do C++17 copy elision here if the argument is already the right type. 2018-03-21 Alexandre Oliva PR c++/71965 * init.c (build_vec_init): Silence error, former sorry, without tf_error. PR c++/84610 PR c++/84642 * parser.c (abort_fully_implicit_template_p): New. (cp_parser_skip_to_end_of_statement): Use it. (cp_parser_skip_to_end_of_block_or_statement): Likewise. (finish_fully_implicit_template_p): Clear implicit_template_parms and implicit_template_scope. 2018-03-21 Paolo Carlini PR c++/84972 * decl.c (maybe_deduce_size_from_array_init): Set TREE_TYPE to error_mark_node when check_array_designated_initializer fails. 2018-03-21 Jakub Jelinek PR c++/84961 * cp-tree.h (genericize_compound_lvalue): Declare. * typeck.c (genericize_compound_lvalue): New function. (unary_complex_lvalue, cp_build_modify_expr): Use it. * semantics.c (finish_asm_stmt): Replace MODIFY_EXPR, PREINCREMENT_EXPR and PREDECREMENT_EXPR in output and "m" constrained input operands with COMPOUND_EXPR. Call cxx_mark_addressable on the rightmost COMPOUND_EXPR operand. 2018-03-21 Nathan Sidwell PR c++/85008 * tree.c (decl_linkage): Use DECL_CLONED_FUNCTION_P. * decl2.c (vague_linkage_p): Likewise. 2018-03-21 David Malcolm PR c++/84994 * constexpr.c (constexpr_fn_retval): Make non-"static". * cp-tree.h (constexpr_fn_retval): New decl. * search.c (direct_accessor_p): Update leading comment. (reference_accessor_p): Likewise. (field_accessor_p): Replace check that function body is a RETURN_EXPR with a call to constexpr_fn_retval. Fix indentation of "field_type" decl. 2018-03-21 Nathan Sidwell PR c++/84804 * name-lookup.c (do_pushtag): Permit lambdas to be pushed into complete classes. 2018-03-21 Martin Sebor PR c++/84850 * call.c (first_non_public_field): New template and function. (first_non_trivial_field): New function. (maybe_warn_class_memaccess): Call them. 2018-03-21 David Malcolm PR c++/84892 * search.c (field_accessor_p): Use class_of_this_parm rather than type_of_this_parm, to check that "this" is a "const T *", rather than a "T *const". 2018-03-21 Nathan Sidwell * class.c (finish_struct_anon_r): Refactor, deprecate anything other than public non-static data members. * parser.c (cp_parser_init_declarator): Deprecate attributes after parenthesized initializer. PR c++/84836 * name-lookup.c (update_binding): Correct logic for local binding update. 2018-03-21 Marek Polacek PR c++/71638, ICE with NSDMI and reference. * constexpr.c (cxx_eval_bare_aggregate): Update constructor's flags even when we replace an element. 2018-03-20 Marek Polacek PR c++/84978, ICE with NRVO. * constexpr.c (cxx_eval_constant_expression): Handle the case when a RESULT_DECL isn't in the hash map. 2018-03-20 Jason Merrill PR c++/84978, ICE with NRVO. * cvt.c (cp_get_fndecl_from_callee): Add fold parameter. (cp_get_callee_fndecl_nofold): New. * cp-gimplify.c (cp_genericize_r): Use it instead. * call.c (check_self_delegation): Likewise. 2018-03-20 Nathan Sidwell PR c++/84962 * name-lookup.c (pushdecl_class_level): Push anon-struct's member_vec, if there is one. PR c++/84970 * cp-tree.h (lookup_list_keep): Declare. * tree.c (lookup_list_keep): New, broken out of ... (build_min): ... here. Call it. * decl.c (cp_finish_decl): Call lookup_list_keep. 2018-03-19 Jason Merrill PR c++/84937 - ICE with class deduction and auto. * pt.c (rewrite_template_parm): Fix auto handling. 2018-03-19 Marek Polacek PR c++/84925 * pt.c (enclosing_instantiation_of): Check if fn is null. PR c++/84927 * constexpr.c (cxx_eval_bare_aggregate): Update constructor's flags as we evaluate the elements. (cxx_eval_constant_expression): Verify constructor's flags unconditionally. 2018-03-19 Jason Merrill PR c++/71834 - template-id with too few arguments. * pt.c (coerce_template_parms): Check fixed_parameter_pack_p. 2018-03-19 Nathan Sidwell PR c++/84835 * lambda.c (maybe_add_lambda_conv_op): Force C++ linkage. * pt.c (build_template_decl): Propagate language linkage. PR c++/84812 * name-lookup.c (set_local_extern_decl_linkage): Defend against ambiguous lookups. 2018-03-16 Jakub Jelinek PR c/84910 * parser.c (cp_parser_lambda_introducer): Remove trailing space from diagnostics. * method.c (synthesize_method): Likewise. * pt.c (convert_nontype_argument): Likewise. 2018-03-16 Jason Merrill PR c++/84720 - ICE with rvalue ref non-type argument. * pt.c (invalid_nontype_parm_type_p): Prohibit rvalue reference. (convert_nontype_argument): Revert earlier change. PR c++/80227 - SFINAE and negative array size. * decl.c (compute_array_index_type): Use build_converted_constant_expr and valid_constant_size_p. PR c++/84906 - silent wrong code with ambiguous conversion. * call.c (build_user_type_conversion_1): Set need_temporary_p on ambiguous conversion. (convert_like_real): Check it. PR c++/83937 - wrong C++17 handling of init-list ctor argument. * call.c (build_special_member_call): Don't convert an init-list argument directly to the class type. 2018-03-16 Jakub Jelinek PR c++/79937 PR c++/82410 * cp-tree.h (CONSTRUCTOR_PLACEHOLDER_BOUNDARY): Define. (find_placeholder): Declare. * tree.c (struct replace_placeholders_t): Add exp member. (replace_placeholders_r): Don't walk into ctors with CONSTRUCTOR_PLACEHOLDER_BOUNDARY flag set, unless they are equal to d->exp. Replace PLACEHOLDER_EXPR with unshare_expr (x) rather than x. (replace_placeholders): Initialize data.exp. (find_placeholders_r, find_placeholders): New functions. * typeck2.c (process_init_constructor_record, process_init_constructor_union): Set CONSTRUCTOR_PLACEHOLDER_BOUNDARY if adding NSDMI on which find_placeholder returns true. * call.c (build_over_call): Don't call replace_placeholders here. * cp-gimplify.c (cp_genericize_r): Set TARGET_EXPR_NO_ELIDE on TARGET_EXPRs with CONSTRUCTOR_PLACEHOLDER_BOUNDARY set on TARGET_EXPR_INITIAL. (cp_fold): Copy over CONSTRUCTOR_PLACEHOLDER_BOUNDARY bit to new ctor. 2018-03-16 Jason Merrill PR c++/83911 - ICE with multiversioned constructor. * cp-gimplify.c (cp_genericize_r): Replace versioned function with dispatchere here. * call.c (build_over_call): Not here. 2018-03-16 Jakub Jelinek PR c++/84874 * decl.c (reshape_init_class): Don't assert d->cur->index == field if d->cur->index is a FIELD_DECL, instead set field to d->cur->index. 2018-03-15 Jakub Jelinek PR c++/84222 * cp-tree.h (cp_warn_deprecated_use): Declare. * tree.c (cp_warn_deprecated_use): New function. * typeck2.c (build_functional_cast): Use it. * decl.c (grokparms): Likewise. (grokdeclarator): Likewise. Temporarily push nested class scope around grokparms call for out of class member definitions. 2018-03-14 Jason Merrill PR c++/84820 - no error for invalid qualified-id. * parser.c (cp_parser_make_indirect_declarator): Don't wrap cp_error_declarator. PR c++/84801 - ICE with unexpanded pack in lambda. * pt.c (check_for_bare_parameter_packs): Don't return early for a lambda in non-template context. PR c++/81236 - auto variable and auto function * pt.c (tsubst_baselink): Update the type of the BASELINK after mark_used. 2018-03-14 Jason Merrill PR c++/83916 - ICE with template template parameters. * pt.c (convert_template_argument): Don't substitute into type of non-type parameter if we don't have enough arg levels. (unify): Likewise. 2018-03-14 Marek Polacek PR c++/84596 * semantics.c (finish_static_assert): Check instantiation_dependent_expression_p instead of {type,value}_dependent_expression_p. 2018-03-13 Paolo Carlini Jason Merrill PR c++/82336 - link error with list-init default argument. * decl.c (check_default_argument): Unshare an initializer list. 2018-03-13 Jakub Jelinek PR c++/84843 * decl.c (duplicate_decls): For redefinition of built-in, use error and return error_mark_node. For redeclaration, return error_mark_node rather than olddecl if !flag_permissive. 2018-03-13 Jason Merrill PR c++/82565 - ICE with concepts and generic lambda. * pt.c (instantiate_decl): Clear fn_context for lambdas. 2018-03-13 Jason Merrill PR c++/84720 - ICE with rvalue ref non-type argument. * pt.c (convert_nontype_argument): Handle rvalue references. PR c++/84839 - ICE with decltype of parameter pack. * pt.c (tsubst_pack_expansion): Set cp_unevaluated_operand while instantiating dummy parms. * parser.c (cp_parser_simple_type_specifier): Pedwarn about auto parameter even without -Wpedantic. PR c++/84798 - ICE with auto in abstract function declarator. * parser.c (cp_parser_parameter_declaration_clause): Check parser->default_arg_ok_p. 2018-03-13 Jakub Jelinek PR c++/84808 * constexpr.c (find_array_ctor_elt): Don't use elt reference after first potential CONSTRUCTOR_ELTS reallocation. Convert dindex to sizetype. Formatting fixes. 2018-03-12 Jason Merrill PR c++/84355 - ICE with deduction for member class template. * pt.c (tsubst) [TEMPLATE_TYPE_PARM]: Always substitute into CLASS_PLACEHOLDER_TEMPLATE. PR c++/84802 - ICE capturing uninstantiated class. * lambda.c (build_capture_proxy): Call complete_type. 2018-03-09 Jason Merrill PR c++/84770 - ICE with typedef and parameter pack. * pt.c (verify_unstripped_args_1): Split out from verify_unstripped_args. PR c++/84785 - ICE with alias template and default targs. * pt.c (type_unification_real): Set processing_template_decl if saw_undeduced == 1. PR c++/84752 - ICE with capture of constexpr array. * call.c (standard_conversion): Set rvaluedness_matches_p on the identity conversion under ck_lvalue. 2018-03-09 Jason Merrill Paolo Carlini PR c++/71169 PR c++/71832 * pt.c (any_erroneous_template_args_p): New. * cp-tree.h (any_erroneous_template_args_p): Declare it. * parser.c (cp_parser_class_specifier_1): Use it. 2018-03-09 Jason Merrill PR c++/84726 - unnecessary capture of constant vars. * cp-tree.h (LAMBDA_CAPTURE_EXPLICIT_P) (LAMBDA_EXPR_CAPTURE_OPTIMIZED): New. * expr.c (mark_use): Set LAMBDA_EXPR_CAPTURE_OPTIMIZED. * lambda.c (is_constant_capture_proxy) (current_lambda_expr, var_to_maybe_prune, mark_const_cap_r) (prune_lambda_captures): New. (finish_lambda_function): Call prune_lambda_captures. 2018-03-09 Jason Merrill Jakub Jelinek PR c++/84076 * call.c (convert_arg_to_ellipsis): Instead of cp_build_addr_expr build ADDR_EXPR with REFERENCE_TYPE. (build_over_call): For purposes of check_function_arguments, if argarray[j] is ADDR_EXPR with REFERENCE_TYPE created above, use its operand rather than the argument itself. 2018-03-09 Jakub Jelinek PR c++/84724 * decl.c (duplicate_decls): Don't override __* prefixed builtins except for __[^b]*_chk, instead issue permerror and for -fpermissive also a note and return olddecl. 2018-03-09 Nathan Sidwell PR c++/84733 * name-lookup.c (do_pushdecl_with_scope): Only clear current_function_decl when pushing a non-class (i.e. namespace) scope. 2018-03-08 Jason Merrill Jakub Jelinek PR c++/80598 * call.c (build_over_call): In templates set TREE_USED (first_fn) when not calling mark_used for the benefit of -Wunused-function warning. 2018-03-06 Jason Merrill * lambda.c (is_capture_proxy_with_ref): Remove. * constexpr.c, expr.c, cp-tree.h, semantics.c: Adjust. 2018-03-06 Marek Polacek PR c++/84684 * constexpr.c (cxx_bind_parameters_in_call): Unshare evaluated arguments. 2018-03-06 Alexandre Oliva PR c++/84231 * tree.c (lvalue_kind): Use presence/absence of REFERENCE_TYPE only while processing template decls. * typeck.c (build_x_conditional_expr): Move wrapping of reference type around type... * call.c (build_conditional_expr_1): ... here. Rename is_lvalue to is_glvalue. * parser.c (cp_parser_fold_expression): Catch REFERENCE_REF_P INDIRECT_REF of COND_EXPR too. PR c++/84593 * init.c (build_zero_init_1): Zero-initialize references. PR c++/84492 * semantics.c (finish_stmt_expr_expr): Reject unresolved overloads used as stmt expr values. 2018-03-05 Jason Merrill PR c++/84708 - ICE with lambda in local class NSDMI. * lambda.c (lambda_expr_this_capture): Handle local class NSDMI context. 2018-03-05 Jakub Jelinek PR c++/84684 * constexpr.c (constexpr_call_hasher::equal): Return false if lhs->hash != rhs->hash. Change return 1 to return true and return 0 to return false. 2018-03-05 Nathan Sidwell PR c++/84702 * pt.c (process_template_arg): Mark lookup_keep on a default arg. 2018-03-05 Marek Polacek PR c++/84707 * decl.c (duplicate_decls): Check DECL_NAME before accessing UDLIT_OPER_P. 2018-03-05 Nathan Sidwell PR c++/84694 * friend.c (do_friend): Restore check for identifier_p inside TEMPLATE_ID_EXPR. 2018-03-05 Paolo Carlini PR c++/84618 * parser.c (cp_parser_lambda_introducer): Reject any capture not involving a VAR_DECL or a PARM_DECL. 2018-03-05 Pádraig Brady Jason Merrill Nathan Sidwell PR c++/84497 * decl2.c (get_tls_init_fn): Check TYPE_HAS_TRIVIAL_DFLT too. 2018-03-03 Jason Merrill PR c++/84686 - missing volatile loads. * cvt.c (convert_to_void): Call maybe_undo_parenthesized_ref. 2018-03-03 Paolo Carlini PR c++/71464 * optimize.c (maybe_thunk_body): Bail out immediately if either fns[0] or fns[1] is null. 2018-03-02 Marek Polacek PR c++/84578 * constexpr.c (get_array_or_vector_nelts): New. (cxx_eval_array_reference): Use it. (cxx_eval_vec_init_1): Likewise. (cxx_eval_store_expression): Likewise. 2018-03-02 Jason Merrill * semantics.c (force_paren_expr): Remove redundant test. 2018-03-02 Marek Polacek PR c++/84663 * decl.c (cp_complete_array_type): Check error_mark_node. PR c++/84664 * typeck.c (cp_perform_integral_promotions): Check the result of mark_rvalue_use. 2018-03-02 Jakub Jelinek PR c++/84662 * pt.c (tsubst_copy_and_build) : Use RETURN instead of return. : Likewise. : If op0 is error_mark_node, just return it instead of wrapping it into CONVERT_EXPR. 2018-03-02 Jason Merrill Fix MIPS16 ICE. * pt.c (type_dependent_expression_p): Check DECL_LANG_SPECIFIC. 2018-03-02 Marek Polacek PR c++/84590 * cp-gimplify.c (cp_fully_fold): Unwrap TARGET_EXPR or a CONSTRUCTOR wrapped in VIEW_CONVERT_EXPR. 2018-03-01 Martin Sebor PR c++/84294 * decl.c (check_redeclaration_no_default_args): Merge attributes specified on redeclarations of the same function template. Remove dead code. 2018-03-01 Marek Polacek Jason Merrill PR c++/84582 * semantics.c (force_paren_expr): Create a PAREN_EXPR when in a template. (maybe_undo_parenthesized_ref): Unwrap PAREN_EXPR. * typeck2.c (store_init_value): Call fold_non_dependent_expr instead of instantiate_non_dependent_expr. * tree.c (lvalue_kind): Handle PAREN_EXPR like NON_DEPENDENT_EXPR. 2018-03-01 Nathan Sidwell PR c++/84434 * name-lookup.c (member_vec_dedup): Remove manually peeled iteration. Ignore dependent ctor inheritance. 2018-03-01 Jason Merrill PR c++/71569 - decltype of template. * parser.c (cp_parser_decltype_expr): Handle missing template args. 2018-03-01 Marek Polacek PR c++/84596 * constexpr.c (require_rvalue_constant_expression): New function. * cp-tree.h: Declare it. * semantics.c (finish_static_assert): Use it instead of require_potential_rvalue_constant_expression. 2018-03-01 Jason Merrill Alexandre Oliva PR c++/71569 - ICE with redundant args on member variable template. * decl.c (start_decl): Handle partial specialization of member variable template. * pt.c (determine_specialization): Allow partial specialization of member variable template without specializing enclosing class. (process_partial_specialization): Improve error message. 2018-02-28 Jason Merrill PR c++/71784 - ICE with ref-qualifier and explicit specialization. * pt.c (determine_specialization): Check ref-qualifier. 2018-02-28 Jakub Jelinek PR c++/84609 * parser.c (cp_parser_attributes_opt): Formatting fix. (cp_parser_skip_balanced_tokens, cp_parser_skip_gnu_attributes_opt, cp_parser_skip_std_attribute_spec_seq, cp_parser_skip_attributes_opt): New functions. (cp_parser_member_declaration): Use cp_parser_skip_attributes_opt instead of tentative parse to peek over optional attribute tokens to check for CPP_COLON after them. PR c++/83871 PR c++/83503 * pt.c (INCLUDE_STRING): Remove define. (warn_spec_missing_attributes): Use pretty_printer instead of std::string. Fix up inform call so that the list of attributes is in %s argument. 2018-02-28 Martin Sebor PR testsuite/84617 * decl.c (duplicate_decls): Fully merge attributes const, pure, and malloc. 2018-02-28 Nathan Sidwell PR c++/84602 * name-lookup.h (search_anon_aggr): Add defaulted WANT_TYPE arg. * name-lookup.c (fields_linear_search): Look in an anon-aggr regardless of want_type. (search_anon_aggr): Just use get_class_binding_direct. 2018-02-28 Jakub Jelinek * decl.c (cp_finish_decomp): Don't adjust eltscnt when calling inform_n. 2018-02-27 Martin Sebor * pt.c: Avoid including directly. 2018-02-27 Martin Sebor PR c++/83871 PR c++/83503 * cp-tree.h (warn_spec_missing_attributes): New function. ((check_explicit_specialization): Add an argument. Call the above function. * decl.c (duplicate_decls): Avoid applying primary function template's attributes to its explicit specializations. cp/pt.c (warn_spec_missing_attributes): Define. 2018-02-27 Håkon Sandsmark PR c++/71546 - lambda init-capture with qualified-id. * parser.c (cp_parser_lambda_introducer): Clear scope after each lambda capture. 2018-02-27 Nathan Sidwell PR c++/84426 * name-lookup.h (get_member_slot): Rename ... (find_member_slot): ... here. (add_member_slot): New. * name-lookup.c (member_vec_linear_search): No need to check for NULL slot. (get_member_slot): Rename ... (find_member_slot): ... here. Don't add slot for incomplete class. (add_member_slot): New. * class.c (add_method): Adjust get_member_slot rename. Bail out if push_class_level_binding fails. Create slot and grok properties once we're committed to insertion. 2018-02-27 Jason Merrill PR c++/84489 - dependent default template argument * pt.c (type_unification_real): Handle early substitution failure. 2018-02-26 Jason Merrill PR c++/84560 - ICE capturing multi-dimensional VLA. * tree.c (array_of_runtime_bound_p): False if the element is variably-modified. PR c++/84441 - ICE with base initialized from ?: * call.c (unsafe_copy_elision_p): Handle COND_EXPR. PR c++/84520 - ICE with generic lambda in NSDMI. * lambda.c (lambda_expr_this_capture): Don't look for fake NSDMI 'this' in a generic lambda instantiation. PR c++/84559 - ICE with constexpr VLA. * constexpr.c (ensure_literal_type_for_constexpr_object): Check for constexpr variable with VLA type. 2018-02-26 Jakub Jelinek PR c++/84558 * constexpr.c (cxx_eval_vec_init_1): For reuse, treat NULL eltinit like a valid constant initializer. Formatting fixes. 2018-02-26 Paolo Carlini PR c++/84540 * pt.c (tsubst_attributes): Handle correctly tsubst_attribute returning NULL_TREE. (apply_late_template_attributes): Likewise. 2018-02-26 Jakub Jelinek PR c++/84557 * parser.c (cp_parser_omp_var_list_no_open): Only call cp_parser_lookup_name_simple on names satisfying identifier_p. (cp_parser_oacc_routine): Likewise. 2018-02-26 Jason Merrill PR c++/84551 - ICE with concepts and -g. * parser.c (add_debug_begin_stmt): Do nothing in a concept. 2018-02-26 Marek Polacek PR c++/84325 * tree.c (replace_placeholders_r): Only check TREE_CONSTANT on non-types. 2018-02-26 Jason Merrill PR c++/84447 - ICE with deleted inherited ctor with default arg. * call.c (build_over_call): Handle deleted functions in one place. 2018-02-26 Paolo Carlini PR c++/84533 * decl.c (redeclaration_error_message): Don't try to use DECL_DECLARED_CONSTEXPR_P on CONST_DECLs. 2018-02-26 Paolo Carlini * lambda.c (build_capture_proxy): Define static. * cp-tree.h (build_capture_proxy): Remove. 2018-02-26 Marek Polacek PR c++/84537 * name-lookup.c (suggest_alternative_in_explicit_scope): Return false if name is error node. 2018-02-25 Jason Merrill PR c++/84015 - ICE with class deduction and auto template parm. * pt.c (rewrite_template_parm): Use tf_partial in first tsubst. 2018-02-24 Marek Polacek PR c++/83692 * constexpr.c (maybe_constant_init_1): New function. (maybe_constant_init): Make it a wrapper around maybe_constant_init_1. (cxx_constant_init): New function. * cp-tree.h (cxx_constant_init): Declare. * typeck2.c (store_init_value): Call cxx_constant_init instead of cxx_constant_value. Move the maybe_constant_init call under an 'else'. 2018-02-22 Jason Merrill PR c++/70468 - ICE with constructor delegation via typedef. * pt.c (tsubst_initializer_list): Check for other mem-initializers with constructor delegation. 2018-02-22 Jason Merrill PR c++/84424 - ICE with constexpr and __builtin_shuffle. * constexpr.c (reduced_constant_expression_p): Handle CONSTRUCTOR of VECTOR_TYPE. 2018-02-22 Marek Polacek PR c++/84493 * parser.c (cp_parser_braced_list): Use require_open instead of consume_open. 2018-02-21 Jason Merrill PR c++/84454 - ICE with pack expansion in signature. * error.c (find_typenames_r): Also stop on EXPR_PACK_EXPANSION. 2018-02-20 Siddhesh Poyarekar * cp-objcp-common.c (cxx_block_may_fallthru): Add case for IF_STMT. 2018-02-20 Paolo Carlini PR c++/84446 * parser.c (cp_parser_init_declarator): Don't call start_lambda_scope on error_mark_node. 2018-02-20 Jakub Jelinek PR c++/84445 * class.c (fixed_type_or_null) : Only test TREE_HAS_CONSTRUCTOR if instance is not an internal function call. PR c++/84449 * tree.c (bot_manip): If build_cplus_new or break_out_target_exprs returns error_mark_node, return it immediately. (break_out_target_exprs): If cp_walk_tree with bot_manip returns error_mark_node, return error_mark_node. PR c++/84455 * pt.c (tsubst_lambda_expr): If not nested, increment temporarily function_depth to avoid GC during finish_lambda_function. 2018-02-19 Jason Merrill PR c++/84429 - ICE capturing VLA. * lambda.c (build_capture_proxy): Handle reference refs. 2018-02-19 Jakub Jelinek PR c++/84448 * parser.c (cp_parser_binary_expression): For no_toplevel_fold_p, if either operand is error_mark_node, set current.lhs to that instead of creating a binary op with error_mark_node operands. PR c++/84430 * constexpr.c (potential_constant_expression_1): Handle OMP_SIMD. 2018-02-19 Paolo Carlini PR c++/84348 * decl.c (grokdeclarator): Early return error_mark_node upon ill-formed friend declaration. 2018-02-16 Marek Polacek Jakub Jelinek PR c++/84192 * constexpr.c (cxx_eval_constant_expression) : Don't set *jump_target to anything if jump_target is NULL. 2018-02-16 Jason Merrill PR c++/84151 - unnecessary volatile load with static member. * call.c (build_new_method_call_1): Avoid loading from a volatile lvalue used as the object argument for a static member function. PR c++/81853 - using-directive and constexpr. * constexpr.c (cxx_eval_constant_expression): Handle USING_STMT. PR c++/84420 - ICE with structured binding in lambda. * lambda.c (is_capture_proxy): Check DECL_DECOMPOSITION_P. PR c++/83835 - C++17 error with constructor ctors. * call.c (build_special_member_call): Set TARGET_EXPR_DIRECT_INIT_P. PR c++/82664 - ICE with reference to function template parm. * pt.c (convert_nontype_argument_function): Avoid obfuscationg NOP_EXPRs. PR c++/82764 - C++17 ICE with empty base * class.c (build_base_field_1): Set DECL_SIZE to zero for empty base. 2018-02-16 Jason Merrill PR c++/84421 - type-dependent if constexpr * semantics.c (finish_if_stmt_cond): Check type_dependent_expression_p. 2018-02-16 Nathan Sidwell Deprecate -ffriend-injection. * decl.c (cxx_init_decl_processing): Emit warning on option. * name-lookup.c (do_pushdecl): Emit warning if we push a visible friend. 2018-02-16 Paolo Carlini PR c++/82468 * decl.c (check_special_function_return_type): Reject template template parameter in deduction guide. 2018-02-16 Nathan Sidwell PR c++/84375 * name-lookup.c (do_pushdecl): Bail out on bad local friend injection. 2018-02-15 Jason Merrill PR c++/83227 - C++17 ICE with init-list derived-to-base conversion. * call.c (convert_like_real): Don't use the copy-list-initialization shortcut for ck_base. PR c++/84045 - ICE with typedef and noexcept. * except.c (build_noexcept_spec): Use strip_typedefs_expr. PR c++/84376 - ICE with omitted template arguments. * pt.c (dguide_name_p): Check for IDENTIFIER_NODE. PR c++/84368 - wrong error with local variable in variadic lambda. * pt.c (tsubst_pack_expansion): Fix handling of non-packs in local_specializations. 2018-02-15 Paolo Carlini PR c++/84330 * constraint.cc (tsubst_constraint_info): Handle an error_mark_node as first argument. 2018-02-14 Paolo Carlini PR c++/84350 * pt.c (do_auto_deduction): Don't check the TREE_TYPE of a null init, early return. 2018-02-14 Nathan Sidwell * decl2.c (mark_vtable_entries): Set input_location to decl's. (c_parse_final_cleanups): Restore input_location after emitting vtables. 2018-02-14 Paolo Carlini * cp-tree.h (do_auto_deduction (tree, tree, tree)): Remove. (do_auto_deduction (tree, tree, tree, tsubst_flags_t, auto_deduction_context, tree, int): Add defaults. * pt.c (do_auto_deduction (tree, tree, tree)): Remove definition. (tsubst_omp_for_iterator): Adjust do_auto_deduction call, forward tsubst_flags_t argument. * init.c (build_new): Likewise. 2018-02-13 Jakub Jelinek PR c++/84364 * typeck.c (check_return_expr): Don't emit -Weffc++ warning about return other than *this in assignment operators if retval is type dependent expression. 2018-02-13 Paolo Carlini PR c++/84333 * call.c (build_conditional_expr_1): Use cp_save_expr instead of save_expr for the G++ extension. 2018-02-13 Jason Merrill PR c++/84080 - ICE with return type deduction and specialization. * pt.c (determine_specialization): Check uses_template_parms. Fix more variadic capture issues. * pt.c (find_parameter_packs_r): Also look at explicit captures. (check_for_bare_parameter_packs): Check current_class_type for lambda context. (extract_locals_r): Handle seeing a full instantiation of a pack. (tsubst_pack_expansion): Likewise. Force lambda capture. * parser.c (cp_parser_lambda_introducer): Don't check_for_bare_parameter_packs. PR c++/84338 - wrong variadic sizeof. * pt.c (argument_pack_select_arg): Like the macro, but look through a pack expansion. (tsubst, tsubst_copy, dependent_template_arg_p): Use it. (extract_fnparm_pack): Do make_pack_expansion. (extract_locals_r): Do strip a pack expansion. * cp-tree.h (ARGUMENT_PACK_SELECT_ARG): Remove. 2018-02-12 Jakub Jelinek PR c++/84341 * parser.c (cp_parser_binary_expression): Use build_min instead of build2_loc to build the no_toplevel_fold_p toplevel binary expression. 2018-02-12 Nathan Sidwell PR c++/84263 * parser.c (cp_parser_decltype): Push and pop deferring_access_checks. Reorganize to avoid goto. 2018-02-12 Richard Biener PR c++/84281 * constexpr.c (cxx_eval_vec_init_1): Use a RANGE_EXPR to compact uniform constructors and delay allocating them fully. 2018-02-09 Jason Merrill PR c++/84036 - ICE with variadic capture. Handle variadic capture proxies more like non-variadic. * lambda.c (build_capture_proxy): Remove workaround. * pt.c (find_parameter_packs_r): The proxy is a pack. (instantiate_class_template_1): Remove dead lambda code. (extract_fnparm_pack): Don't make_pack_expansion. (extract_locals_r): Don't strip a pack expansion. (tsubst_pack_expansion): Handle proxy packs. Use PACK_EXPANSION_EXTRA_ARGS less. (tsubst_decl) [FIELD_DECL]: Don't register_specialization. (tsubst_copy) [FIELD_DECL]: Don't retrieve*_specialization. [VAR_DECL]: Handle ARGUMENT_PACK_SELECT. (tsubst_expr) [DECL_EXPR]: Handle proxy packs. (tsubst_copy_and_build) [VAR_DECL]: Handle proxy packs normally. 2018-02-10 Jakub Jelinek PR sanitizer/83987 * tree.c (cp_free_lang_data): Revert 2018-01-23 change. 2018-02-09 Jason Merrill PR c++/81917 - ICE with void_t and partial specialization. * pt.c (instantiate_class_template_1): Set TYPE_BEING_DEFINED before calling most_specialized_partial_spec. 2018-02-09 Nathan Sidwell PR c/84293 * typeck.c (cp_build_indirect_ref_1, build_reinterpret_cast_1): Pass expr location to strict_aliasing_warning. 2018-02-09 Jason Merrill PR c++/84296 - ICE with qualified-id in template. PR c++/83714 * pt.c (unknown_base_ref_p): New. (instantiation_dependent_scope_ref_p): Use it instead of any_dependent_bases_p. 2018-02-09 Marek Polacek Jakub Jelinek PR c++/83659 * constexpr.c (cxx_fold_indirect_ref): Sync some changes from fold_indirect_ref_1, including poly_*int64. Verify first that tree_fits_poly_int64_p (op01). Formatting fixes. 2018-02-08 Paolo Carlini * constexpr.c (cxx_eval_component_reference): Use INDIRECT_REF_P. * lambda.c (build_capture_proxy): Likewise. * search.c (field_access_p): Likewise. * semantics.c (omp_clause_decl, omp_privatize_field, finish_omp_clauses): Likewise. 2018-02-08 Paolo Carlini PR c++/83806 * typeck.c (decay_conversion): Use mark_rvalue_use for the special case of nullptr too. 2018-02-08 Nathan Sidwell * class.c (finish_struct): Fix std:initializer_list diagnostic formatting. 2018-02-08 Paolo Carlini PR c++/83204 * pt.c (tsubst_copy_and_build): Use force_paren_expr for INDIRECT_REF. 2018-02-07 Jakub Jelinek PR c++/84082 * parser.c (cp_parser_dot_deref_incomplete): New function. (cp_parser_postfix_dot_deref_expression): Use it. 2018-02-07 David Malcolm PR c++/81610 PR c++/80567 * name-lookup.c (suggest_rid_p): New function. (lookup_name_fuzzy): Replace enum-rid-filtering logic with call to suggest_rid_p. 2018-02-07 Jason Merrill PR c++/84182 - ICE with captured lambda PR c++/84181 * pt.c (extract_locals_r, extract_local_specs): New. (tsubst_pack_expansion): Use them. 2018-02-07 Martin Liska PR c++/84059. * class.c (add_method): Append argument value. * cp-tree.h (maybe_version_functions): Add new argument. * decl.c (decls_match): Call it if a declaration does not have DECL_FUNCTION_VERSIONED. (maybe_version_functions): record argument is added. 2018-02-05 Marek Polacek * class.c: Remove unused global variables. (build_primary_vtable): Don't gather statistics. (print_class_statistics): Remove. * cp-tree.h (print_class_statistics): Remove. * tree.c (cxx_print_statistics): Don't call print_class_statistics. 2018-02-02 Paolo Carlini * class.c (is_really_empty_class): Use DECL_UNNAMED_BIT_FIELD. * constexpr.c (cx_check_missing_mem_inits): Likewise. * decl.c (next_initializable_field, find_decomp_class_base, cp_finish_decomp): Likewise. * typeck2.c (process_init_constructor_record): Likewise. 2018-02-02 Jason Merrill PR c++/84181 - ICE with lambda parm in template argument. * tree.c (strip_typedefs_expr): Use cp_tree_operand_length. 2018-02-01 Jason Merrill PR c++/84160 - ICE with nested variadic capture. * lambda.c (is_capture_proxy_with_ref): New. (insert_capture_proxy): Don't set DECL_CAPTURED_VARIABLE from a COMPONENT_REF. * expr.c (mark_use): Use is_capture_proxy_with_ref. * constexpr.c (potential_constant_expression_1): Likewise. * semantics.c (process_outer_var_ref): Likewise. 2018-02-01 Marek Polacek PR c++/84125 * typeck.c (build_address): Relax the assert when processing_template_decl. 2018-02-01 Jason Merrill PR c++/84126 - ICE with variadic generic lambda PR c++/84036 PR c++/82249 * pt.c (tsubst_pack_expansion): Handle function parameter_packs in PACK_EXPANSION_EXTRA_ARGS. 2018-02-01 Paolo Carlini PR c++/83796 * call.c (convert_like_real): If w're initializing from {} explicitly call abstract_virtuals_error_sfinae. 2018-01-31 Jason Merrill Jakub Jelinek PR c++/83993 * constexpr.c (cxx_eval_outermost_constant_expr): Build NOP_EXPR around non-constant ADDR_EXPRs rather than clearing TREE_CONSTANT on ADDR_EXPR. 2018-01-31 Jakub Jelinek PR c++/83993 * constexpr.c (diag_array_subscript): Emit different diagnostics if TYPE_DOMAIN (arraytype) is NULL. (cxx_eval_array_reference, cxx_eval_store_expression): For arrays with NULL TYPE_DOMAIN use size_zero_node as nelts. 2018-01-31 Paolo Carlini PR c++/84092 * semantics.c (finish_qualified_id_expr): When handling an UNBOUND_CLASS_TEMPLATE only adjust qualifying_class and expr. 2018-01-31 Marek Polacek PR c++/84138 * cp-gimplify.c (cp_fold): Check if X is an error node before calling useless_type_conversion_p. 2018-01-30 Jason Merrill PR c++/84091 - ICE with local class in lambda in template. * decl2.c (determine_visibility): Look for outer containing template instantiation. PR c++/84098 - ICE with lambda in template NSDMI. * pt.c (instantiate_class_template_1): Ignore more lambdas. 2018-01-29 Jason Merrill PR c++/68810 - wrong location for reinterpret_cast error. * cvt.c (cp_convert_to_pointer): Always build a CONVERT_EXPR when !dofold. 2018-01-29 Marek Polacek PR c++/83996 * constexpr.c (cxx_fold_indirect_ref): Compute ((foo *)&fooarray)[1] => fooarray[1] in offset_int. 2018-01-29 Jason Merrill PR c++/83942 - wrong unused warning with static_cast. * cvt.c (ocp_convert): Call mark_rvalue_use. 2018-01-26 Jason Merrill PR c++/83956 - wrong dtor error with anonymous union * method.c (walk_field_subobs): Variant members only affect deletedness. (maybe_explain_implicit_delete): Pass &deleted_p for diagnostic. PR c++/84036 - ICE with variadic capture. PR c++/82249 * pt.c (tsubst_pack_expansion): When optimizing a simple substitution, pull a single pack expansion out of its pack. PR c++/82514 - ICE with local class in generic lambda. * pt.c (regenerated_lambda_fn_p): Remove. (enclosing_instantiation_of): Don't use it. (tsubst_function_decl): Call enclosing_instantiation_of. * pt.c (lookup_template_class_1): Add sanity check. * name-lookup.c (do_pushtag): Don't add closures to local_classes. 2018-01-25 Jakub Jelinek PR c++/84031 * decl.c (find_decomp_class_base): Ignore unnamed bitfields. Ignore recursive calls that return ret. (cp_finish_decomp): Ignore unnamed bitfields. 2018-01-23 Jason Merrill PR c++/82249 - wrong mismatched pack length error. * pt.c (extract_fnparm_pack, tsubst_pack_expansion): Handle unsubstituted function parameter pack. 2018-01-23 Paolo Carlini PR c++/83921 * decl.c (check_for_uninitialized_const_var): Not static; add bool and tsubst_flags_t parameters; adjust to be used both in constexpr context and not. * constexpr.c (potential_constant_expression_1): Use the above. * cp-tree.h (check_for_uninitialized_const_var): Declare. 2018-01-23 Jason Merrill PR c++/83947 - ICE with auto declarations. * pt.c (do_auto_deduction): Don't deduce from an auto decl. * decl.c (undeduced_auto_decl): Limit to vars and fns. 2018-01-23 David Malcolm PR c++/83974 * pt.c (tsubst_copy_and_build) : Remove early bailout for pointer to member function types. 2018-01-23 Jakub Jelinek PR sanitizer/83987 * tree.c (cp_free_lang_data): Change DECL_VALUE_EXPR of DECL_OMP_PRIVATIZED_MEMBER vars to error_mark_node. 2018-01-23 Nathan Sidwell PR c++/83988 * pt.c (tsubst_baselink): Remove optype assert. * ptree.c (cxx_print_xnode): Print BASELINK_OPTYPE. 2018-01-23 Jakub Jelinek PR c++/83958 * decl.c (cp_finish_decomp): Diagnose if reference structure binding refers to incomplete type. 2018-01-23 Nathan Sidwell Deprecate ARM-era for scope handling * decl.c (poplevel): Flag_new_for_scope is a boolean-like. (cxx_init_decl_processing): Deprecate flag_new_for_scope being cleared. * name-lookup.c (check_for_out_of_scope_variable): Deprecate and cleanup handling. * semantics.c (begin_for_scope): Flag_new_for_scope is boolean-like. (finish_for_stmt, begin_range_for_stmt): Likewise. 2018-01-22 Jason Merrill PR c++/83720 * decl2.c (determine_visibility): Fix template_decl handling instead of blocking it. PR c++/83720 - ICE with lambda and LTO. * decl2.c (determine_visibility): Clear template_decl for function-scope decls. Propagate anonymous linkage from containing function. 2018-01-22 Marek Polacek PR c++/81933 * typeck2.c (split_nonconstant_init_1): Return false if we didn't split out anything. 2018-01-22 Ville Voutilainen PR c++/83895 * decl.c (grokdeclarator): Don't diagnose extra parens on typedefs. 2018-01-19 Jakub Jelinek PR c++/81167 * call.c (joust): Use TREE_TYPE (source) if source is a POINTER_TYPE_P rather than if ! DECL_CONSTRUCTOR_P (w->fn). PR c++/83919 * typeck.c (convert_for_assignment): Suppress warn_ignored_qualifiers for direct enum init. * decl.c (reshape_init): Likewise. 2018-01-19 Marek Polacek * constexpr.c (fold_simple): Simplify. 2018-01-18 Jason Merrill PR c++/83714 * search.c (any_dependent_bases_p): Handle null TREE_BINFO. * pt.c (instantiation_dependent_scope_ref_p): True if any_dependent_bases_p. 2018-01-18 Paolo Carlini * cp-tree.h: Fix comment typo (DECL_NON_TRIVIALLY_INITIALIZED_P vs DECL_NONTRIVIALLY_INITIALIZED_P). 2018-01-18 Jason Merrill PR c++/82461 - constexpr list-initialized member * constexpr.c (potential_constant_expression_1): Check TARGET_EXPR_DIRECT_INIT_P. 2018-01-18 Paolo Carlini PR c++/81013 * decl.c (xref_basetypes): Early return upon error about derived union. 2018-01-18 Nathan Sidwell PR c++/83160 * cp-tree.h (mark_use): Declare. * expr.c (mark_use): Make extern. * call.c (direct_reference_binding): Set inner conv's rvaluedness_matches_p, if it is an identity. (convert_like_real): Mark lvalue or rvalue use for identity as rvaledness_matches_p demands. 2018-01-18 Jakub Jelinek PR c++/83824 * parser.c (attr_chainon): New function. (cp_parser_label_for_labeled_statement, cp_parser_decl_specifier_seq, cp_parser_namespace_definition, cp_parser_init_declarator, cp_parser_type_specifier_seq, cp_parser_parameter_declaration, cp_parser_gnu_attributes_opt): Use it. (cp_parser_member_declaration, cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Likewise. Don't reset prefix_attributes if attributes is error_mark_node. 2018-01-17 Paolo Carlini PR c++/78344 * decl.c (grokdeclarator): Do not append the error_mark_node due to an erroneous optional attribute-specifier-seq. 2018-01-17 Jakub Jelinek PR c++/83897 * cp-gimplify.c (cp_maybe_instrument_return): Handle CLEANUP_POINT_EXPR. 2018-01-17 Paolo Carlini PR c++/81054 * constexpr.c (ensure_literal_type_for_constexpr_object): Return error_mark_node when we give an error. * decl.c (cp_finish_decl): Use the latter. 2018-01-17 Nathan Sidwell PR c++/83287 * init.c (build_raw_new_expr): Scan list for lookups to keep. 2018-01-17 David Malcolm PR c++/83814 * expr.c (fold_for_warn): Move from c-common.c, reducing to just the C++ part. If processing a template, call fold_non_dependent_expr rather than fully folding. 2018-01-17 Jason Merrill PR c++/81067 - redundant NULL warning. * call.c (convert_like_real): Restore null_node handling. 2018-01-17 Jason Merrill PR c++/81843 - ICE with variadic member template. PR c++/72801 * pt.c (unify_pack_expansion): Don't try to deduce enclosing template args. 2018-01-17 David Malcolm PR c++/83799 * pt.c (type_dependent_expression_p): Strip any location wrapper before testing tree codes. (selftest::test_type_dependent_expression_p): New function. (selftest::cp_pt_c_tests): Call it. 2018-01-17 Nathan Sidwell PR c++/83739 * pt.c (tsubst_expr) : Rebuild a range_for if this not a final instantiation. 2018-01-16 Jason Merrill PR c++/83714 - ICE checking return in template. * typeck.c (check_return_expr): Call build_non_dependent_expr. 2018-01-16 Jakub Jelinek PR c++/83817 * pt.c (tsubst_copy_and_build) : If function is AGGR_INIT_EXPR rather than CALL_EXPR, set AGGR_INIT_FROM_THUNK_P instead of CALL_FROM_THUNK_P. PR c++/83825 * name-lookup.c (member_vec_dedup): Return early if len is 0. (resort_type_member_vec, set_class_bindings, insert_late_enum_def_bindings): Use vec qsort method instead of calling qsort directly. 2018-01-15 Martin Sebor PR c++/83588 * class.c (find_flexarrays): Make a record of multiple flexible array members. 2018-01-12 Jason Merrill PR c++/83186 - ICE with static_cast of list-initialized temporary. * typeck.c (build_static_cast): Use build_non_dependent_expr. 2018-01-12 Nathan Sidwell * cp-tree.h (mark_rvalue_use): Add parm name. * expr.c (mark_lvalue_use, mark_lvalue_use_nonread): Move next to mark_rvalue_use. * call.c (convert_like_real): Fix formatting. 2018-01-11 Jason Merrill PR c++/82728 - wrong -Wunused-but-set-variable PR c++/82799 PR c++/83690 * call.c (perform_implicit_conversion_flags): Call mark_rvalue_use. * decl.c (case_conversion): Likewise. * semantics.c (finish_static_assert): Call perform_implicit_conversion_flags. 2018-01-11 Nathan Sidwell * method.c (enum mangling_flags): Delete long-dead enum. 2018-01-10 Paolo Carlini * parser.c (cp_parser_std_attribute_spec): When token_pair::require_open / require_close return false simply return error_mark_node, avoid duplicate cp_parser_error about expected '(' / ')', respectively. 2018-01-10 David Malcolm PR c++/43486 * call.c (null_ptr_cst_p): Strip location wrappers when converting from '0' to a pointer type in C++11 onwards. (conversion_null_warnings): Replace comparison with null_node with call to null_node_p. (build_over_call): Likewise. * cp-gimplify.c (cp_fold): Remove the early bailout when processing_template_decl. * cp-lang.c (selftest::run_cp_tests): Call selftest::cp_pt_c_tests and selftest::cp_tree_c_tests. * cp-tree.h (cp_expr::maybe_add_location_wrapper): New method. (selftest::run_cp_tests): Move decl to bottom of file. (null_node_p): New inline function. (selftest::cp_pt_c_tests): New decl. (selftest::cp_tree_c_tests): New decl. * cvt.c (build_expr_type_conversion): Replace comparison with null_node with call to null_node_p. * error.c (args_to_string): Likewise. * except.c (build_throw): Likewise. * mangle.c (write_expression): Skip location wrapper nodes. * parser.c (literal_integer_zerop): New function. (cp_parser_postfix_expression): Call maybe_add_location_wrapper on the result for RID_TYPEID. Pass true for new "wrap_locations_p" param of cp_parser_parenthesized_expression_list. When calling warn_for_memset, replace integer_zerop calls with literal_integer_zerop, eliminating the double logical negation cast to bool. Eliminate the special-casing for CONST_DECL in favor of the fold_for_warn within warn_for_memset. (cp_parser_parenthesized_expression_list): Add "wrap_locations_p" param, defaulting to false. Convert "expr" to a cp_expr, and call maybe_add_location_wrapper on it when wrap_locations_p is true. (cp_parser_unary_expression): Call maybe_add_location_wrapper on the result for RID_ALIGNOF and RID_SIZEOF. (cp_parser_builtin_offsetof): Likewise. * pt.c: Include "selftest.h". (tsubst_copy): Handle location wrappers. (tsubst_copy_and_build): Likewise. (build_non_dependent_expr): Likewise. (selftest::test_build_non_dependent_expr): New function. (selftest::cp_pt_c_tests): New function. * tree.c: Include "selftest.h". (lvalue_kind): Handle VIEW_CONVERT_EXPR location wrapper nodes. (selftest::test_lvalue_kind): New function. (selftest::cp_tree_c_tests): New function. * typeck.c (string_conv_p): Strip any location wrapper from "exp". (cp_build_binary_op): Replace comparison with null_node with call to null_node_p. (build_address): Use location of operand when building address expression. 2018-01-10 Marek Polacek PR c++/82541 * call.c (build_conditional_expr_1): Check complain before warning. * pt.c (tsubst_copy_and_build) : Suppress -Wduplicated-branches. 2018-01-10 Jakub Jelinek PR c++/81327 * call.c (maybe_warn_class_memaccess): Add forward declaration. Change last argument from tree * to const vec *, adjust args uses and check number of operands too. Don't strip away any nops. Use maybe_constant_value when looking for INTEGER_CST args. Deal with src argument not having pointer type. Check tree_fits_uhwi_p before calling tree_to_uhwi. Remove useless test. (build_over_call): Call maybe_warn_class_memaccess here on the original arguments. (build_cxx_call): Rather than here on converted arguments. 2018-01-10 Paolo Carlini PR c++/81055 * init.c (build_vec_init): Avoid building an INIT_EXPR with error_mark_node as second argument. 2018-01-09 Jakub Jelinek PR c++/83734 * constexpr.c (cxx_eval_statement_list): Ignore DEBUG_BEGIN_STMTs in STATEMENT_LIST. Remove unneeded assert. 2018-01-03 Richard Sandiford Alan Hayward David Sherwood * constexpr.c (cxx_eval_array_reference): Handle polynomial VECTOR_CST_NELTS. (cxx_fold_indirect_ref): Handle polynomial TYPE_VECTOR_SUBPARTS. * call.c (build_conditional_expr_1): Likewise. * decl.c (cp_finish_decomp): Likewise. * mangle.c (write_type): Likewise. * typeck.c (structural_comptypes): Likewise. (cp_build_binary_op): Likewise. * typeck2.c (process_init_constructor_array): Likewise. 2018-01-03 Jakub Jelinek PR c++/83555 * typeck.c (build_static_cast_1): For static casts to reference types, call build_base_path with flag_delete_null_pointer_checks as nonnull instead of always false. When -fsanitize=null, call ubsan_maybe_instrument_reference on the NULL reference INTEGER_CST. * cp-gimplify.c (cp_genericize_r): Don't walk subtrees of UBSAN_NULL call if the first argument is INTEGER_CST with REFERENCE_TYPE. 2018-01-03 Nathan Sidwell PR c++/83667 * method.c (make_alias_for): Copy DECL_CONTEXT. 2018-01-03 Marek Polacek PR c++/83592 * decl.c (grokdeclarator): Don't warn about MVP in typename context. 2018-01-03 Jakub Jelinek PR preprocessor/83602 * name-lookup.c (lookup_name_fuzzy): Don't use macro_use_before_def for builtin macros. PR c++/83634 * cp-gimplify.c (cp_fold) : If the operand folds to error_mark_node, return error_mark_node. Update copyright years. 2018-01-02 Jakub Jelinek PR c++/83556 * tree.c (replace_placeholders_r): Pass NULL as last argument to cp_walk_tree instead of d->pset. If non-TREE_CONSTANT and non-PLACEHOLDER_EXPR tree has been seen already, set *walk_subtrees to false and return. (replace_placeholders): Pass NULL instead of &pset as last argument to cp_walk_tree. 2018-01-02 Nathan Sidwell * constexpr.c (cxx_bind_parameters_in_call): Remove unneeded local lval var. Copyright (C) 2018 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.