2017-07-04 Release Manager * GCC 6.4.0 released. 2017-06-24 Marek Polacek Backported from mainline 2017-04-18 Marek Polacek PR c++/80241 - ICE with alignas pack expansion. * error.c (dump_expr): Handle TREE_LIST. * parser.c (cp_parser_std_attribute_list): Return error_mark if make_pack_expansion returns an error. PR c++/80244 - ICE with attribute in template alias. * tree.c (strip_typedefs): Handle UNDERLYING_TYPE. 2017-04-10 Marek Polacek PR sanitizer/80348 * typeck.c (cp_build_binary_op): Use NULL_TREE instead of NULL. Set ORIG_TYPE earlier and not only when shortening. 2017-04-07 Marek Polacek PR sanitizer/80348 * typeck.c (cp_build_binary_op): Convert COP[01] to ORIG_TYPE. 2017-06-22 Jakub Jelinek Backported from mainline 2017-06-21 Jakub Jelinek PR c++/81154 * semantics.c (handle_omp_array_sections_1, finish_omp_clauses): Complain about t not being a variable if t is OVERLOAD even when processing_template_decl. 2017-06-13 Jakub Jelinek PR c++/80973 * cp-gimplify.c (cp_genericize_r): Don't instrument MEM_REF second argument even if it has REFERENCE_TYPE. PR c++/80984 * cp-gimplify.c (cp_genericize): Only look for VAR_DECLs in BLOCK_VARS (outer) chain. (cxx_omp_const_qual_no_mutable): Likewise. 2017-06-17 Jason Merrill PR c++/70844 - -Wuseless-cast and inheriting constructor. * method.c (forward_parm): Suppress warn_useless_cast. 2017-06-08 Jakub Jelinek PR c/81006 * semantics.c (handle_omp_array_sections_1): Convert TYPE_MAX_VALUE to sizetype before size_binop. PR c++/81011 * cp-gimplify.c (cxx_omp_finish_clause): When changing clause to OMP_CLAUSE_SHARED, also clear OMP_CLAUSE_SHARED_FIRSTPRIVATE and OMP_CLAUSE_SHARED_READONLY flags. 2017-05-31 Jason Merrill PR c++/80179 - ICE with initialized flexible array member. * constexpr.c (verify_ctor_sanity): Handle flexible array members. 2017-05-23 Jason Merrill PR c++/80267 - ICE with nested capture of reference PR c++/60992 * pt.c (tsubst_copy): Handle lookup finding a capture proxy. PR c++/80294 - ICE with constexpr and inheritance. * constexpr.c (reduced_constant_expression_p): A null constructor element is non-constant. (cxx_eval_indirect_ref): Don't VERIFY_CONSTANT before returning an empty base. 2017-05-05 Jakub Jelinek Backported from mainline 2017-04-11 Jakub Jelinek PR c++/80363 * error.c (dump_expr): Handle VEC_COND_EXPR like COND_EXPR. 2017-04-10 Jakub Jelinek PR c++/80176 * tree.c (lvalue_kind): For COMPONENT_REF with BASELINK second operand, if it is a static member function, recurse on the BASELINK. 2017-03-31 Jakub Jelinek PR c++/79572 * cp-gimplify.c (cp_genericize_r): Sanitize INTEGER_CSTs with REFERENCE_TYPE. Adjust ubsan_maybe_instrument_reference caller for NOP_EXPR to REFERENCE_TYPE. 2017-03-22 Jakub Jelinek PR c++/80141 * semantics.c (finish_omp_clause) : Call maybe_constant_value only when not processing_template_decl. 2017-03-10 Jakub Jelinek PR c++/79896 * decl.c (finish_enum_value_list): If value is error_mark_node, don't copy it and change its type. * init.c (constant_value_1): Return error_mark_node if DECL_INITIAL of CONST_DECL is error_mark_node. 2017-02-22 Jakub Jelinek PR c++/79664 * parser.c (cp_parser_omp_teams, cp_parser_omp_target): Use SET_EXPR_LOCATION on OMP_TARGET/OMP_TEAMS tree. * constexpr.c (potential_constant_expression_1): Handle OMP_*, OACC_* and CILK_* trees. 2017-02-21 Jakub Jelinek PR c++/79639 * constexpr.c (cxx_eval_store_expression): If *valp is a PTRMEM_CST, call cplus_expand_constant on it first. 2017-02-16 Jakub Jelinek PR c++/79512 * parser.c (cp_parser_omp_target): For -fopenmp-simd ignore #pragma omp target even when not followed by identifier. 2017-04-12 Jason Merrill PR c++/80150 - ICE with overloaded variadic deduction. * pt.c (try_one_overload): Remove asserts. PR c++/77563 - missing ambiguous conversion error. * call.c (convert_like_real): Use LOOKUP_IMPLICIT. PR c++/79519 - ICE with deleted template friend. * decl.c (grokdeclarator): Complain about misplaced function definition using =, as well. PR c++/79640 - infinite recursion with generic lambda. * pt.c (tsubst_copy) [VAR_DECL]: Register the dummy instantiation before substituting its initializer. PR c++/80043 - ICE with -fpermissive * typeck.c (convert_for_assignment): Handle instantiate_type not giving an error. PR c++/78282 - auto template and pack expansion * pt.c (find_parameter_packs_r): Don't walk into the type of templates other than template template-parameters. PR c++/79607 - ICE with T{} initializer * decl.c (type_dependent_init_p): Check the type of a CONSTRUCTOR. PR c++/79566 - elaborated-type-specifier in range for * parser.c (cp_parser_simple_declaration): Fix check for type definition. PR c++/79580 - ICE with compound literal * parser.c (cp_parser_class_head): If we're in the middle of an expression, use ts_within_enclosing_non_class. PR c++/79508 - lookup error with member template * parser.c (cp_parser_template_name): Clear parser->context->object_type if we aren't doing lookup. PR c++/79050 - ICE with undeduced auto and LTO * decl.c (poplevel): Remove undeduced auto decls. PR c++/79461 - ICE with lambda in constexpr constructor * constexpr.c (build_data_member_initialization): Ignore initialization of a local variable. 2017-03-20 Nathan Sidwell PR c++/80091 * lambda.c (maybe_generic_this_capture): Capture when fn is an identifier node. 2017-03-15 Marek Polacek Backported from mainline 2016-12-14 Marek Polacek PR c++/72775 * init.c (perform_member_init): Diagnose member initializer for flexible array member. 2017-03-14 Marek Polacek Backported from mainline 2017-03-09 Marek Polacek PR c++/79900 - ICE in strip_typedefs * tree.c (strip_typedefs): Skip the attribute handling if T is a variant type which hasn't been updated yet. PR c++/79687 * init.c (constant_value_1): Break if the variable has a dynamic initializer. Backported from mainline 2017-01-31 Nathan Sidwell PR c++/79264 * lambda.c (maybe_generic_this_capture): Deal with template-id-exprs. * semantics.c (finish_member_declaration): Assert class is being defined. Backported from mainline 2017-01-17 Nathan Sidwell PR c++/61636 * cp-tree.h (maybe_generic_this_capture): Declare. * lambda.c (resolvable_dummy_lambda): New, broken out of ... (maybe_resolve_dummy): ... here. Call it. (maybe_generic_this_capture): New. * parser.c (cp_parser_postfix_expression): Speculatively capture this in generic lambda in unresolved member function call. * pt.c (tsubst_copy_and_build): Force hard error from failed member function lookup in generic lambda. 2017-03-07 Marek Polacek Backported from mainline 2017-03-06 Marek Polacek PR c++/79796 - ICE with NSDMI and this pointer * call.c (build_over_call): Handle NSDMI with a 'this' by calling replace_placeholders. 2017-02-15 Jakub Jelinek Backported from mainline 2017-02-09 Jakub Jelinek PR c++/79429 * parser.c (cp_parser_omp_ordered): Don't check for non-pragma_stmt non-pragma_compound context here. (cp_parser_omp_target): Likewise. (cp_parser_pragma): Don't call push_omp_privatization_clauses and parsing for ordered and target omp pragmas in non-pragma_stmt non-pragma_compound contexts. PR c/79431 * parser.c (cp_parser_oacc_declare): Formatting fix. (cp_parser_omp_declare_target): Don't invoke symtab_node::get on automatic variables. 2017-02-06 Jakub Jelinek PR c++/79377 * tree.c (build_min_non_dep_op_overload): For POST{INC,DEC}REMENT_EXPR allow one fewer than expected arguments if flag_permissive. 2017-02-13 Nathan Sidwell PR c++/79296 - ICE mangling localized template instantiation * decl2.c (determine_visibility): Use template fn context for local class instantiations. 2017-02-11 Jason Merrill PR c++/78908 - template ops and bitfields * tree.c (build_min_non_dep): Use unlowered_expr_type. 2017-02-10 Jason Merrill PR c++/78897 - constexpr union * constexpr.c (cxx_eval_store_expression): A store to a union member erases a previous store to another member. 2017-01-26 Jason Merrill PR c++/79176 - lambda ICE with -flto -Os * decl2.c (vague_linkage_p): Handle decloned 'tors. * tree.c (decl_linkage): Likewise. 2017-01-20 Marek Polacek Backported from mainline 2017-01-04 Marek Polacek PR c++/77545 PR c++/77284 * constexpr.c (potential_constant_expression_1): Handle CLEANUP_STMT. 2017-01-17 Jakub Jelinek Backported from mainline 2017-01-11 Jakub Jelinek PR c++/78341 * parser.c (cp_parser_std_attribute_spec): Remove over-eager assertion. Formatting fix. 2017-01-04 Jakub Jelinek PR c++/78949 * typeck.c (cp_build_unary_op): Call mark_rvalue_use on arg if it has vector type. PR c++/78693 * parser.c (cp_parser_simple_declaration): Only complain about inconsistent auto deduction if auto_result doesn't use auto. PR c++/71182 * parser.c (cp_lexer_previous_token): Use vec_safe_address in the assertion, as lexer->buffer may be NULL. 2017-01-11 Nathan Sidwell PR c++/77812 * name-lookup.c (set_namespace_binding_1): An overload of 1 decl is a new overload. 2016-12-21 Release Manager * GCC 6.3.0 released. 2016-12-14 Nathan Sidwell PR c++/78701 * pt.c (type_unification_real): Check tsubst arg doesn't have remaining template parms before converting it. 2016-12-08 Nathan Sidwell PR c++/78551 * constexpr.c (extract_string_elt): New. Broken out of ... (cxx_eval_array_reference): ... here. Call it. (cxx_eval_store_expression): Convert init by STRING_CST into CONSTRUCTOR, if needed. 2016-12-07 Jakub Jelinek Backported from mainline 2016-12-02 Jakub Jelinek PR c++/78649 * pt.c (tsubst_init): Don't call build_value_init if decl's type is error_mark_node. 2016-11-28 Jakub Jelinek Jason Merrill PR c++/72808 * decl.c (finish_enum_value_list): Call fixup_type_variants on current_class_type after insert_late_enum_def_into_classtype_sorted_fields. 2016-11-28 Jakub Jelinek PR c++/77591 * typeck.c (maybe_warn_about_returning_address_of_local): Optimize whats_returned through fold_for_warn. 2016-11-23 Jakub Jelinek PR c++/77739 * cp-gimplify.c (cp_gimplify_tree) : Pass false as handle_invisiref_parm_p to cp_genericize_tree. (struct cp_genericize_data): Add handle_invisiref_parm_p field. (cp_genericize_r): Don't wrap is_invisiref_parm into references if !wtd->handle_invisiref_parm_p. (cp_genericize_tree): Add handle_invisiref_parm_p argument, set wtd.handle_invisiref_parm_p to it. (cp_genericize): Pass true as handle_invisiref_parm_p to cp_genericize_tree. Formatting fix. 2016-11-18 Jakub Jelinek PR c++/77285 * mangle.c (mangle_tls_init_fn, mangle_tls_wrapper_fn): Call check_abi_tags. 2016-10-31 Jakub Jelinek PR c++/78089 * parser.c (cp_parser_postfix_expression): Replace return statement in the first switch with setting postfix_expression to the return expression and break;. 2016-09-28 Jakub Jelinek PR c++/77467 * constexpr.c (enum constexpr_switch_state): New. (struct constexpr_ctx): Add css_state field. (label_matches): Add CTX and STMT arguments, remove I and DEFAULT_LABEL. For CASE_LABEL_EXPR assert ctx->css_state != NULL, handle default labels according to css_state. (cxx_eval_statement_list): Remove statement skipping, label_matches and default_label handling code. (cxx_eval_loop_expr): Exit after first iteration even if switches (jump_target). (cxx_eval_switch_expr): Set up css_state field in ctx, if default label has been seen in the body, but no cases matched, evaluate the body second time. (cxx_eval_constant_expression): Handle stmt skipping and label_matches here. Handle PREDICT_EXPR. For MODIFY_EXPR or INIT_EXPR, assert statement is not skipped. For COND_EXPR during skipping, don't evaluate condition, just the then block and if still skipping at the end also the else block. (cxx_eval_outermost_constant_expr): Adjust constexpr_ctx initializer. (is_sub_constant_expr): Likewise. 2016-09-27 Jakub Jelinek PR c++/77722 * cp-gimplify.c (cp_ubsan_maybe_instrument_return): Instrument also functions that have just a STATEMENT_LIST instead of BIND_EXPR, or BIND_EXPR with some statement rather than STATEMENT_LIST as body. 2016-09-20 Jakub Jelinek PR c++/77638 * parser.c (cp_parser_template_declaration_after_parameter): For 2 argument operator"" template set ok to false for parm == error_mark_node. PR c++/77637 * parser.c (cp_parser_std_attribute_list): Reject ... without preceding attribute. 2016-09-16 Jakub Jelinek PR c++/77482 * error.c (dump_simple_decl): Only check DECL_DECLARED_CONCEPT_P if DECL_LANG_SPECIFIC is non-NULL. Fix up formatting. PR c++/77375 * class.c (check_bases): Set CLASSTYPE_HAS_MUTABLE if any TYPE_HAS_MUTABLE_P for any bases. 2016-12-06 Jason Merrill PR c++/71274 * decl2.c (maybe_instantiate_decl): Split out from mark_used. (decl_constant_var_p): Use it instead. PR c++/71515 * pt.c (resolve_typename_type): Try to avoid calling currently_open_class. PR c++/77907 * constexpr.c (cxx_eval_constant_expression): Use cp_fold_convert. PR c++/57728 * pt.c (do_type_instantiation): Don't mess with non-user-provided member functions. 2016-11-18 Jason Merrill PR c++/67631 - list-init and explicit conversions * semantics.c (finish_compound_literal): Call digest_init_flags. * typeck2.c (digest_init_flags): Add complain parm. (store_init_value): Pass it. 2016-11-17 Jason Merrill PR c++/68377 * parser.c (cp_parser_fold_expression): Check TREE_NO_WARNING. 2016-11-05 Martin Sebor PR c++/78039 * class.c (diagnose_flexarrays): Avoid rejecting an invalid flexible array member with a hard error when it is followed by another member in a different struct, and instead issue just a pedantic warning. 2016-10-14 Martin Sebor PR c++/71912 * class.c (struct flexmems_t): Add members. (find_flexarrays): Add arguments. Correct handling of anonymous structs. (diagnose_flexarrays): Adjust to issue warnings in addition to errors. (check_flexarrays): Add argument. (diagnose_invalid_flexarray): New functions. 2016-10-04 Martin Sebor PR c++/77804 * init.c (warn_placement_new_too_small): Avoid assuming an array type has a constant size. 2016-09-22 Paolo Carlini PR c++/71979 * class.c (build_base_path): Allow for lookup_base returning NULL_TREE. 2016-09-16 Jakub Jelinek Backported from mainline 2016-09-13 Jakub Jelinek PR c++/77553 * constexpr.c (cxx_fold_pointer_plus_expression): New function. (cxx_eval_binary_expression): Use it for POINTER_PLUS_EXPR. (cxx_eval_pointer_plus_expression): Remove. (cxx_eval_constant_expression) : Don't call cxx_eval_pointer_plus_expression. 2016-09-14 Nathan Sidwell PR c++/77539 * constexpr.c (get_fundef_copy): Use the original function for non-recursive evaluations. (save_fundef_copy): Always expect a slot to be available. 2016-08-22 Release Manager * GCC 6.2.0 released. 2016-08-13 Jason Merrill PR c++/71972 * constexpr.c (cxx_eval_array_reference): Handle looking for the value of an element we're currently modifying. 2016-08-11 Jakub Jelinek PR c++/72868 * constexpr.c (label_matches): Handle case range expressions. 2016-08-11 Jason Merrill PR c++/73456 * logic.cc (non_atomic_constraint_p): Handle EXPR_PACK_EXPANSION. 2016-08-08 Paolo Carlini PR c++/72800 * lambda.c (add_capture): Check lambda_capture_field_type return value for error_mark_node. 2016-08-05 Nathan Sidwell PR c++/68724 * pt.c (unify): TRAIT_EXPR is an expr. 2016-08-04 Jason Merrill PR c++/72415 * pt.c (tsubst_pack_expansion): Pull a single pack expansion out of the TREE_VEC. 2016-07-29 Jason Merrill PR c++/72457 * init.c (expand_aggr_init_1): Only handle value-init of bases. * constexpr.c (build_data_member_initialization): Handle multiple initializers for the same field. 2016-07-25 Jason Merrill PR c++/71576 * call.c (convert_like_real): Use lvalue_kind. PR c++/71833 * pt.c (coerce_template_parameter_pack): Fix logic for pack index. 2016-07-23 Jason Merrill PR c++/55922 PR c++/63151 * init.c (expand_aggr_init_1): Handle list-initialization from {}. PR c++/70709 * class.c (walk_subobject_offsets): Handle 0-length array. PR c++/70778 * pt.c (tsubst): Also substitute into the template of a BOUND_TEMPLATE_TEMPLATE_PARM. PR c++/71738 * pt.c (lookup_template_class_1): Handle getting template from tsubst. PR c++/71350 * decl.c (reshape_init_r): Check complain for missing braces warning. 2016-07-22 Jason Merrill PR c++/71748 PR c++/52746 * pt.c (tsubst_baselink): Call adjust_result_of_qualified_name_lookup for unqualified destructors. 2016-07-21 Jason Merrill PR c++/69223 * semantics.c (apply_deduced_return_type): Call complete_type_or_else before building the new RESULT_DECL. PR c++/71630 * pt.c (instantiate_decl): Fix pattern_defined for namespace scope variable templates. PR c++/71913 * call.c (unsafe_copy_elision_p): It's OK to elide when initializing an unknown object. 2016-07-21 Jakub Jelinek PR c++/71728 * constexpr.c (potential_constant_expression_1) : Replace assert with test, return false if the goto isn't break or continue. Formatting fix. 2016-07-21 Jakub Jelinek PR c++/71941 * cp-gimplify.c (cp_genericize): For nested cp_genericize calls save/restore bc_label array. 2016-07-21 Patrick Palka PR c++/70822 PR c++/70106 * cp-tree.h (REF_PARENTHESIZED_P): Make this flag apply to SCOPE_REFs too. * pt.c (tsubst_qualified_id): If REF_PARENTHESIZED_P is set on the qualified_id then propagate it to the resulting expression. (do_auto_deduction): Check REF_PARENTHESIZED_P on SCOPE_REFs too. * semantics.c (force_paren_expr): If given a SCOPE_REF, just set its REF_PARENTHESIZED_P flag. 2016-07-21 Andrew Sutton Jason Merrill Improving concepts performance and diagnostics. PR c++/67565 PR c++/67579 PR c++/71843 * cp-tree.def (CHECK_CONSTR): New. * cp-tree.h (CHECK_CONSTR_CONCEPT): New. (CHECK_CONSTR_ARGS): New. * constraint.cc (make_predicate_constraint): Remove in favor of normalize_expression. (resolve_constraint_check): Actually return error_mark_node when resolution fails. (resolve_variable_concept_check): Perform coercion as if processing a template. Also return errors on resolution failure. (lift_*): Remove all of these functions. Don't unnecessarily inline concepts. (learn_*): Add facilities to memoize implications for subsumption during normalization. (expanding_concept): New. (expand_concept): New. Return the inlined and normalized definition of a concept when needed. (transform_*, xform_*): Rename to normalize_* to better reflect the responsibility of those functions. (normalize_template_id_expression): Check for non-boolean operands when possible. Generate check constraints instead of normal variable references. (normalize_call_expression): Report errors when resolution fails. (check_for_logical_overloads): Rewrite this check to more accurately report the error. (normalize_atom): Check for overloaded calls and invalid types before determining if the expression refers to a concept. (build_constraints): Don't cache normalized constraints or decomposed assumptions. (finish_shorthand_constraint): Return a normalized expression instead of a predicate constraint. (finish_template_introduction): Same. (placeholder_extract_concept_and_args): Rewrite this since we only ever get check constraints here. (equivalent_placeholder_constraints): Rewrite in terms of check constraints, and handle error_mark_nodes correctly. (tsubst_check_constraint, tsubst_expr_constr, tsubst_type_constr) (tsubst_implicit_conversion_constr) (tsubst_argument_deduction_constr, tsubst_exception_constr) (tsubst_parameterized_constraint, tsubst_constraint): New. (tsbust_conjunection): Replace with tsubst_logical_operator and actually generate the right kind of constraint. (tsubst_requirement_body): Reverse the order of substituted arguments so that they appear in the order written (helps diagnostics). (satisfy_check_constraint): New. (satisfy_conjunction): Simplify. (satisfy_disjunction): Same. (satisfy_constraint_1): Handle check constraints. (eval_constr): New (private) global state. (evaluating_constraints_sentinel): New. Manages eval_constr. (satisfy_constraint): Add timing variables. (satisfy_associated_constraints): Add hooks for memoization. (evaluate_function_concept): Build a check constraint instead of normalizing its definition. (evaluate_variable_concept): Same. (evaluate_constraint_expression): Normalize, but in the current declaration processing context. (evaluating_constraints_p): New. (elide_constraint_failure_p): Actually emit constraint_thresh errors. (diagnose_*): Remove artificial indentation. Add a new parameter to each that tracks the current (complete) constraint prior to any substitutions. (diagnose_expression): Removed. (diagnose_call_expression): Same. (diagnose_template_id): Same. (diagnose_template_id): New. (diagnose_logical_constraint): New. (diagnose_expression_constraint): Show the original expression. (diagnose_type_constraint): Show the original type. (diagnose_implicit_conversion_constraint): Be specific about failures, don't re-diagnose a known-to-be-failed substitutions, and manage elisions properly. (diagnose_argument_deduction_constraint): Same. (diagnose_exception_constraint): Same. (diagnose_parameterized_constraint): Same. (constraint_p): Allow EXPR_PACK_EXPANSION. * logic.cc (next_by_distance): Removed. No longer used. (any_p): Renamed from any_of. (term_entry, term_hasher): New. (term_list): Rewrite to include a hash table for quick lookup. Also, make less stateful. (proof_state): Extend to allow goals to be discharged once satisfied. (non_atomic_constraint_p): New. (any_non_atomic_constraints_p): New. (...rest...): Previous implementation completely replaced with an iterative algorithm that opportunistically prunes the search space before committing to using more memory. * parser.c: (cp_parser_type_parameter): Normalize constraints. (cp_parser_explicit_template_declaration): Same. * pt.c: (finish_template_variable): Be less redundant with this error message. (template_args_equal): No longer static. (tsubst_decl): Don't try to find specializations of variables that have already been instantiated. (build_non_dependent_expr): Avoid infinite recursion during concept expansion. (make_constrained_auto): Normalize constraints. (do_auto_deduction): When doing auto deduction from a partial-concept-id, be sure to include the explicit args checking the constraints. (constraint_sat_*): New. Memoize satisfied constraints. (concept_spec_*): New. Memoize expressions associated with a concept specialization. (constraint_memos, concept_memos): New. (lookup_constraint_satisfaction, memoize_constraint_satisfaction): New. (lookup_concept_satisfaction, memoize_concept_satisfaction): New. (get_concept_expansion, save_concept_expansion): New. (hash_subsumption_args): New. (comp_subsumption_args): New. (subsumption_*): New. Memoize parts of the subsumption relation. (lookup_subsumption_result, save_subsumption_result): New. (init_constraint_processing): Initialize memo tables. (get_constraints): Shortcut if !flag_concepts. * decl.c (grokfndecl): Normalize constraints. * error.c (dump_simple_decl): Print "concept" when appropriate. (dump_function_decl): Same. (dump_template_decl): Don't write requirements when we're not printing the header. (dump_expr): Handle fold expressions. * cxx-pretty-print.c (cxx_pretty_printer::expression): Handle fold expressions. (get_fold_operator): New. (pp_cxx_unary_left_fold_expression): New. (pp_cxx_unary_right_fold_expression): New. (pp_cxx_binary_fold_expression): New. (pp_cxx_check_constraint): New. (pp_cxx_*_constraint): Rewrite the grammar of internal constraints to make them easier to read when debugging. * search.c (accessible_p): Don't shortcut when evaluating constraints. * tree.c (cp_tree_equal): Handle CHECK_CONSTR. 2016-07-21 Jason Merrill PR c++/70781 * parser.c (cp_parser_lambda_expression): Unset OK if there was an error parsing the lambda-declarator. PR c++/71896 * constexpr.c (cxx_eval_binary_expression): Handle comparison between lowered and unlowered PTRMEM_CST. PR c++/71092 * constexpr.c (cxx_eval_call_expression): Fail quietly when cgraph threw away DECL_SAVED_TREE. PR c++/71117 Core 2189 * call.c (add_template_conv_candidate): Disable if there are viable candidates. PR c++/71495 * call.c (convert_like_real): Mask complain. PR c++/71511 * typeck2.c (cxx_incomplete_type_diagnostic): Handle DECLTYPE_TYPE. PR c++/71513 * pt.c (tsubst_attributes): Fix loop logic. PR c++/71604 PR c++/54430 * parser.c (cp_parser_range_for): Modify IDENTIFIER_BINDING directly. (cp_parser_simple_declaration): Diagnose type definition in for-range-declaration. PR c++/71711 * operators.def: Add *_FOLD_EXPR. * cp-tree.h (FOLD_EXPR_P): Parenthesize. * mangle.c (write_expression): Handle fold-expressions. * pt.c (tsubst_unary_left_fold, tsubst_binary_left_fold) (tsubst_unary_right_fold, tsubst_binary_right_fold): Handle partial instantiation. PR c++/71814 * mangle.c (write_expression): Handle sizeof... an argument pack. PR c++/71718 * pt.c (push_tinst_level_loc): Set at_eof before fatal_error. PR c++/70824 * init.c (constant_value_1): Don't instantiated DECL_INITIAL of artificial variables. * lambda.c (maybe_add_lambda_conv_op): Fix null object argument. 2016-07-20 Jakub Jelinek PR c++/71909 * parser.c (cp_parser_save_member_function_body): Consume __transaction_relaxed or __transaction_atomic with optional attribute. Only skip catch with block if try keyword is seen. 2016-07-19 Jakub Jelinek Backported from mainline 2016-07-18 Jakub Jelinek PR c++/71835 * call.c (build_op_call_1): Use convert_like_with_context only if cand->fn is a decl. PR c++/71828 * constexpr.c (cxx_eval_constant_expression) : For lval don't use cxx_eval_unary_expression and instead recurse and if needed rebuild the reference. PR c++/71822 * cp-gimplify.c (cp_gimplify_expr) : Recursively fold *expr_p before genericizing it. PR c++/71871 * typeck.c (build_x_conditional_expr): Revert the 2012-10-25 change. 2016-07-07 Jakub Jelinek Kai Tietz PR c++/70869 PR c++/71054 * cp-gimplify.c (cp_genericize_r): For DECL_EXPR for non-static artificial vars, genericize their initializers. 2016-06-21 Jakub Jelinek Backported from mainline 2016-06-17 Jakub Jelinek * semantics.c (handle_omp_array_sections_1): Don't ICE when processing_template_decl when checking for bitfields and unions. Look through REFERENCE_REF_P as base of COMPONENT_REF. (finish_omp_clauses): Look through REFERENCE_REF_P even for array sections with COMPONENT_REF bases. 2016-06-16 Jakub Jelinek * parser.c (cp_parser_omp_var_list_no_open): Call convert_from_reference before cp_parser_postfix_dot_deref_expression. * semantics.c (finish_omp_clauses): Don't ICE when processing_template_decl when checking for bitfields and unions. Look through REFERENCE_REF_P as base of COMPONENT_REF. 2016-06-14 Jakub Jelinek PR c++/71528 * decl.c (duplicate_decls): For DECL_INITIALIZED_P non-external olddecl vars, preserve their TREE_READONLY bit. 2016-06-14 Paolo Carlini PR c++/70572 * decl.c (cp_finish_decl): Check do_auto_deduction return value and return immediately in case of erroneous code. 2016-06-14 Jakub Jelinek PR c++/71516 * decl.c (complete_vars): Handle gracefully type == error_mark_node. 2016-06-10 Thomas Schwinge PR c/71381 Backport from trunk r237290: * parser.c (cp_parser_omp_var_list_no_open) : Loosen checking. 2016-06-08 Jakub Jelinek PR c++/71442 * pt.c (tsubst_copy): Only set TREE_USED on DECLs. 2016-06-06 Jakub Jelinek Patrick Palka PR c++/70847 PR c++/71330 PR c++/71393 * cp-gimplify.c (cp_fold_r): Set *walk_subtrees = 0 and return NULL right after cp_fold call if cp_fold has returned the same stmt already in some earlier cp_fold_r call. (cp_fold_function): Add pset automatic variable, pass its address to cp_walk_tree. 2016-06-02 Jakub Jelinek PR c++/71372 * cp-gimplify.c (cp_fold): For INDIRECT_REF, if the folded expression is INDIRECT_REF or MEM_REF, copy over TREE_READONLY, TREE_SIDE_EFFECTS and TREE_THIS_VOLATILE flags. For ARRAY_REF and ARRAY_RANGE_REF, copy over TREE_READONLY, TREE_SIDE_EFFECTS and TREE_THIS_VOLATILE flags to the newly built tree. 2016-06-02 Paolo Carlini PR c++/70972 * method.c (forward_parm): Use cp_build_reference_type. 2016-05-31 Jason Merrill PR c++/71166 * decl2.c (c_parse_final_cleanups): Don't call fini_constexpr. PR c++/71227 * pt.c (check_explicit_specialization): Give better diagnostic about specializing a hidden friend. PR c++/60095 PR c++/69515 PR c++/69009 * pt.c (instantiate_template_1): Don't put the partial specialization in DECL_TI_TEMPLATE. (partial_specialization_p, impartial_args): Remove. (regenerate_decl_from_template): Add args parm. (instantiate_decl): Look up the partial specialization again. PR c++/71173 PR c++/70522 * cp-tree.h (enum tag_types): Add scope_type. * parser.c (cp_parser_class_name): Use scope_type. (prefer_type_arg): Handle scope_type. (cp_parser_lookup_name): Use prefer_type_arg. * name-lookup.c (lookup_qualified_name): Change bool is_type_p to int prefer_type, use lookup_flags. * name-lookup.h: Adjust. PR c++/70584 * cp-gimplify.c (cp_fold_maybe_rvalue): Loop in case cp_fold returns a decl. (cp_fold) [INDIRECT_REF]: Call maybe_undo_parenthesized_ref. PR c++/70735 * pt.c (tsubst_copy): Just return a local variable from non-template context. Don't call rest_of_decl_compilation for duplicated static locals. (tsubst_decl): Set DECL_CONTEXT of local static from another function. 2016-05-31 Martin Sebor PR c++/71306 * init.c (warn_placement_new_too_small): Handle placement new arguments that are elements of arrays more carefully. Remove a pointless loop. 2016-05-30 Jakub Jelinek PR c++/71349 * parser.c (cp_parser_omp_for): Don't disallow nowait clause when combined with target construct. (cp_parser_omp_parallel): Pass cclauses == NULL as last argument to cp_parser_omp_all_clauses. 2016-05-29 Paolo Carlini PR c++/71105 * lambda.c (maybe_add_lambda_conv_op): Early return also when LAMBDA_EXPR_DEFAULT_CAPTURE_MODE != CPLD_NONE. 2016-05-24 Martin Sebor PR c++/71147 * decl.c (layout_var_decl, grokdeclarator): Use complete_or_array_type_p. * pt.c (instantiate_class_template_1): Try to complete the element type of a flexible array member. (can_complete_type_without_circularity): Handle arrays of unknown bound. * typeck.c (complete_type): Also complete the type of the elements of arrays with an unspecified bound. 2016-05-24 Paolo Carlini PR c++/69872 * typeck2.c (check_narrowing): Check pedwarn return value. 2016-05-24 Jakub Jelinek PR c++/71257 * semantics.c (finish_omp_clauses) : For OMP_CLAUSE_LINEAR_REF don't require type to be integral or pointer. 2016-05-23 Jason Merrill PR c++/70344 * constexpr.c (cxx_eval_call_expression): Check for fun == current_function_decl again. 2016-05-19 David Malcolm Backport from trunk r236483. PR c++/71184 * parser.c (cp_parser_operator): For array new/delete, check that cp_parser_require returned a non-NULL token before dereferencing it. 2016-05-19 Bernd Edlinger Backport from mainline 2016-05-19 Bernd Edlinger * decl.c (finish_enum_value_list): Use the specified mode. 2016-05-18 Paolo Carlini PR c++/70466 * call.c (convert_like_real): Check that we are actually converting from an init list. 2016-04-29 Cesar Philippidis PR middle-end/70626 * parser.c (cp_parser_oacc_loop): Don't augment mask with OACC_LOOP_CLAUSE_MASK. (cp_parser_oacc_kernels_parallel): Update call to c_oacc_split_loop_clauses. 2016-04-28 Paolo Carlini PR c++/70540 * semantics.c (process_outer_var_ref): Unconditionally return error_mark_node when mark_used returns false. 2016-04-27 Release Manager * GCC 6.1.0 released. 2016-04-26 Jakub Jelinek PR bootstrap/70704 * pt.c (build_non_dependent_expr): Temporarily disable flag_checking guarded code. 2016-04-22 Jason Merrill PR c++/68206 PR c++/68530 * constexpr.c (potential_constant_expression_1): Handle LOOP_EXPR and GOTO_EXPR. PR c++/70522 * name-lookup.c (qualified_lookup_using_namespace): Look through hidden names. 2016-04-19 Jason Merrill PR c++/66543 * expr.c (mark_exp_read): Handle NON_DEPENDENT_EXPR. * pt.c (make_pack_expansion): Call mark_exp_read. * semantics.c (finish_id_expression): Call mark_type_use in unevaluated context. 2016-04-18 Jason Merrill PR c++/70690 PR c++/70528 * class.c (type_maybe_constexpr_default_constructor): New. (type_has_constexpr_default_constructor): Revert. PR c++/70505 * pt.c (tsubst_baselink): Give the new TEMPLATE_ID_EXPR unknown_type_node, too. 2016-04-15 Jason Merrill PR c++/70685 * constexpr.c (get_fundef_copy): Handle null *slot. 2016-04-15 Jason Merrill Nathan Sidwell PR c++/70594 * constexpr.c (constexpr_call_table): Preserve in GC. (struct fundef_copy, struct fundef_copies_table_t): Delete. (fundef_copies_table): Preserve in GC. Change to pointer to tree->tree hash. (maybe_initialize_fundef_copies_table): Adjust. (get_fundef_copy): Return a TREE_LIST. Use non-inserting search. (save_fundef_copy): Adjust for a TREE_LIST. (cxx_eval_call_expression): Adjust for a fundef_copy TREE_LIST. (fini_constexpr): New. * cp-tree.h (fini_constexpr): Declare. * decl2.c (c_parse_final_cleanups): Call fini_constexpr. 2016-04-15 Jakub Jelinek PR c/70436 * parser.c (cp_parser_pragma): Add IF_P argument, pass it down where needed. (cp_parser_declaration_seq_opt, cp_parser_member_specification_opt, cp_parser_objc_interstitial_code, cp_parser_omp_declare_simd, cp_parser_oacc_routine): Adjust cp_parser_pragma callers. (cp_parser_statement): Likewise. Adjust cp_parser_cilk_for caller. (cp_parser_omp_structured_block): Add IF_P argument, pass it down to cp_parser_statement. (cp_parser_oacc_data, cp_parser_oacc_host_data, cp_parser_oacc_loop, cp_parser_oacc_kernels_parallel, cp_parser_omp_critical, cp_parser_omp_simd, cp_parser_omp_for, cp_parser_omp_master, cp_parser_omp_ordered, cp_parser_omp_parallel, cp_parser_omp_single, cp_parser_omp_task, cp_parser_omp_taskgroup, cp_parser_omp_distribute, cp_parser_omp_teams, cp_parser_omp_target_data, cp_parser_omp_target, cp_parser_omp_taskloop, cp_parser_omp_construct, cp_parser_cilk_grainsize, cp_parser_cilk_simd, cp_parser_cilk_for): Add IF_P argument, pass it down where needed. (cp_parser_omp_for_loop): Likewise. Clear IF_P if nbraces. (cp_parser_omp_sections_scope): Adjust cp_parser_omp_structured_block calls. 2016-04-14 Jason Merrill PR c++/70494 * decl.c (cxx_maybe_build_cleanup): Handle non-decls. * typeck2.c (split_nonconstant_init_1): Use it. PR c++/70528 * class.c (type_has_constexpr_default_constructor): Return true for an implicitly declared constructor. PR c++/70622 * parser.c (cp_parser_init_declarator): Add auto_result parm. (cp_parser_simple_declaration): Pass it. (strip_declarator_types): New. PR c++/70543 * pt.c (value_dependent_expression_p) [VAR_DECL]: A type-dependent initializer also makes the variable value-dependent. PR c++/70648 * constexpr.c (cxx_eval_store_expression): Also copy CONSTRUCTOR_NO_IMPLICIT_ZERO. 2016-04-14 Martin Sebor PR c++/69517 PR c++/70019 PR c++/70588 * cp-tree.h, decl.c, init.c, typeck2.c: Revert. 2016-04-14 Jason Merrill * call.c, decl.c, error.c, cp-tree.h, decl.c: Revert empty parameter ABI change. 2016-04-13 Martin Sebor PR c++/69517 PR c++/70019 PR c++/70588 * cp-tree.h (throw_bad_array_length, build_vla_check): Declare new functions. * decl.c (check_initializer, cp_finish_decl): Call them. (reshape_init_r): Reject incompletely braced intializer-lists for VLAs. * init.c (throw_bad_array_length, build_vla_check) (build_vla_size_check, build_vla_init_check): Define new functions. * typeck2.c (split_nonconstant_init_1): Use variably_modified_type_p() to detect a VLA. (store_init_value): Same. 2016-04-13 Jason Merrill Warn about empty parameter ABI with -Wabi=9. * call.c (empty_class_msg, mark_for_abi_warning) (warn_empty_class_abi): New. (build_call_a): Use them. * decl.c (store_parm_decls): Use mark_for_abi_warning. * error.c (pp_format_to_string): New. Pass empty class parameters like C. * call.c (pass_as_empty_struct, empty_class_arg): New. (type_passed_as, build_x_va_arg): Use pass_as_empty_struct. (build_call_a): Use empty_class_arg. * cp-tree.h (CPTI_EMPTY_STRUCT, empty_struct_type): New. * decl.c (cxx_init_decl_processing): Create empty_struct_type. 2016-04-13 Jason Merrill PR c++/70627 * decl.c (start_enum): Don't change an existing ENUM_UNDERLYING_TYPE. 2016-04-13 Paolo Carlini PR c++/70635 * pt.c (resolve_typename_type): Fix typos in infinite recursion avoidance mechanism. 2016-04-13 Jason Merrill PR c++/70634 * pt.c (instantiation_dependent_uneval_expression_p): Split out from instantiation_dependent_expression_p. (value_dependent_expression_p): Use it for unevaluated operands. (instantiation_dependent_r): Don't check value-dependence. (instantiation_dependent_expression_p): Check value-dependence of the expression as a whole. * cp-tree.h: Declare instantiation_dependent_uneval_expression_p. * semantics.c (finish_decltype_type): Use it. * constexpr.c (potential_nondependent_constant_expression): New. (potential_nondependent_static_init_expression): New. (maybe_constant_value_1, fold_non_dependent_expr) (maybe_constant_init): Use them. * pt.c (instantiate_non_dependent_expr_sfinae) (instantiate_non_dependent_or_null, convert_nontype_argument): Use them. * cp-tree.h: Declare them. 2016-04-13 Jakub Jelinek PR c++/70594 * decl.c (pop_labels_1): Removed. (note_label, sort_labels): New functions. (pop_labels): During named_labels traversal, just push the slot pointers into a vector, then qsort it by DECL_UID and only then call pop_label and chain it into BLOCK_VARS. 2016-04-13 Jason Merrill PR c++/70615 * cp-gimplify.c (cp_genericize_r): Expand PTRMEM_CST here. (cp_gimplify_expr): Not here. 2016-04-12 Patrick Palka PR c++/70610 * tree.c (lvalue_kind) [NON_DEPENDENT_EXPR]: Unconditionally recurse into it. * typeck.c (build_x_conditional_expr): Unconditionally remember that the result is an lvalue or xvalue. 2016-04-12 Jason Merrill * class.c (is_really_empty_class): A zero-length array is empty. An unnamed bit-field doesn't make a class non-empty. 2016-04-12 Paolo Carlini PR c++/68722 * parser.c (cp_parser_cache_defarg): When file ends in default argument simply return error_mark_node. 2016-04-12 Nathan Sidwell PR c++/70501 * constexpr.c (cxx_eval_bare_aggregate): Handle VECTOR_TYPE similarly to PMF. 2016-04-11 Jason Merrill * mangle.c (decl_is_template_id): The template itself counts as a template-id. 2016-04-08 Patrick Palka PR c++/70590 PR c++/70452 * constexpr.c (cxx_eval_outermost_expression): Call unshare_expr on the result if it's not a CONSTRUCTOR. 2016-04-07 Patrick Palka PR c++/70452 * constexpr.c (find_constructor): New function. (unshare_constructor): New function. (cxx_eval_call_expression): Use unshare_constructor instead of unshare_expr. (find_array_ctor_elt): Likewise. (cxx_eval_vec_init_1): Likewise. (cxx_eval_store_expression): Likewise. (cxx_eval_constant_expression): Likewise. 2016-04-06 Patrick Palka PR c/70436 * cp-tree.h (FOR_EACH_CLONE): Restructure macro to avoid potentially generating a future -Wparentheses warning in its callers. 2016-04-06 Jason Merrill * class.c (check_abi_tags): Fix function template handling. 2016-04-05 Nathan Sidwell PR c++/70512 * class.c (fixup_may_alias): New. (fixup_attribute_variants): Call it. 2016-04-05 Patrick Palka PR c++/70452 * constexpr.c (struct fundef_copy): New struct. (struct fundef_copies_table_t): New struct. (fundef_copies_table): New static variable. (maybe_initialize_fundef_copies_table): New static function. (get_fundef_copy): New static function. (save_fundef_copy): New static function. (cxx_eval_call_expression): Use get_fundef_copy, and save_fundef_copy. (constexpr_call_table): Add "deletable" GTY marker. 2016-04-05 Patrick Palka PR c++/70452 * cp-tree.h (class cache_map): Remove. * constexpr.c (cv_cache): Change type to GTY((deletable)) hash_map *. (maybe_constant_value): Adjust following the change to cv_cache. (clear_cv_cache): New static function. (clear_cv_and_fold_caches): Use it. * cp-gimplify.c (fold_cache): Change type to GTY((deletable)) hash_map *. (clear_fold_cache): Adjust following the change to fold_cache. (cp_fold): Likewise. 2016-04-02 Martin Sebor PR c++/67376 PR c++/70170 PR c++/70172 PR c++/70228 * constexpr.c (diag_array_subscript): New function. (cxx_eval_array_reference): Detect out of bounds array indices. 2016-04-01 Jason Merrill PR c++/70449 PR c++/70344 * pt.c (instantiate_decl): A function isn't fully defined if DECL_INITIAL is error_mark_node. * constexpr.c (cxx_eval_call_expression): Likewise. 2016-04-01 Jakub Jelinek Marek Polacek PR c++/70488 * init.c (warn_placement_new_too_small): Test whether DECL_SIZE_UNIT or TYPE_SIZE_UNIT are integers that fit into uhwi. 2016-04-01 Nathan Sidwell PR c++/68475 * decl.c (check_redeclaration_exception_specification): Check regardless of -fno-exceptions. * typeck2.c (merge_exception_specifiers): Relax assert by checking flag_exceptions too. 2016-03-31 Nathan Sidwell * decl.c (start_preparsed_function): Remove unnecessary bracing. (finish_destructor_body): Don't emit operator delete here. 2016-03-31 Nathan Sidwell PR c++/70393 * constexpr.c (cxx_eval_store_expression): Keep CONSTRUCTOR elements in field order. 2016-03-31 Marek Polacek PR c/70297 * decl.c (duplicate_decls): Also set TYPE_ALIGN and TYPE_USER_ALIGN. 2016-03-31 Richard Biener PR c++/70430 * typeck.c (cp_build_binary_op): Fix operand order of vector conditional in truth op handling. 2016-03-29 Jason Merrill PR c++/70353 * decl.c (make_rtl_for_nonlocal_decl): Don't defer local statics in constexpr functions. 2016-03-28 Jason Merrill PR c++/70422 PR c++/64266 PR c++/70353 * decl.c, pt.c, constexpr.c: Revert last patch. 2016-03-25 Jason Merrill Martin Liška PR c++/64266 PR c++/70353 Core issue 1962 * decl.c (cp_fname_init): Decay the initializer to pointer. (cp_make_fname_decl): Set DECL_DECLARED_CONSTEXPR_P, DECL_VALUE_EXPR, DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P. Don't call cp_finish_decl. * pt.c (tsubst_expr) [DECL_EXPR]: Set DECL_VALUE_EXPR, DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P. Don't call cp_finish_decl. * constexpr.c (cxx_eval_constant_expression) [VAR_DECL]: Handle DECL_VALUE_EXPR. 2016-03-24 Jason Merrill PR c++/70386 * constexpr.c (cxx_eval_bare_aggregate): Handle PMFs. PR c++/70323 * constexpr.c (cxx_eval_call_expression): Don't cache result if *overflow_p. 2016-03-24 Patrick Palka PR c++/62212 * tree.c (build_cplus_array_type): Determine type-dependentess with uses_template_parms instead of with dependent_type_p. 2016-03-23 Patrick Palka PR c++/70347 * typeck.c (process_init_constructor_union): If the initializer is empty, use the union's NSDMI if it has one. 2016-03-23 Patrick Palka PR c++/70332 * pt.c (tsubst_copy) [PARM_DECL]: Handle the use of 'this' in an NSDMI that's part of an aggregrate initialization. 2016-03-23 Jakub Jelinek PR c++/70001 * constexpr.c (cxx_eval_vec_init_1): Reuse CONSTRUCTOR initializers for 1..max even for multi-dimensional arrays. Call unshare_expr on it. PR c++/70323 * constexpr.c (cxx_eval_constant_expression): Diagnose overflow on TREE_OVERFLOW constants. PR c++/70376 * cp-gimplify.c (genericize_omp_for_stmt): Don't walk OMP_FOR_CLAUSES for OMP_TASKLOOP here. (cp_genericize_r): Handle OMP_TASKLOOP like OMP_TASK, except do call genericize_omp_for_stmt instead of cp_walk_tree on OMP_BODY. 2016-03-23 Alexandre Oliva Jason Merrill Jakub Jelinek PR c++/69315 * cp-tree.h (defer_mark_used_calls, deferred_mark_used_calls): Remove. * decl.c (defer_mark_used_calls, deferred_mark_used_calls): Remove. (finish_function): Don't set or test them. * decl2.c (mark_used): Don't handle defer_mark_used_calls. 2016-03-23 Jason Merrill PR c++/70344 * constexpr.c (cxx_eval_call_expression): Catch invalid recursion. 2016-03-23 Marek Polacek PR c++/69884 * pt.c (canonicalize_type_argument): Use OPT_Wignored_attributes. 2016-03-22 Ilya Enkovich * call.c (build_conditional_expr_1): Always use original condition type for vector type checks and build. 2016-03-22 Patrick Palka PR c++/70096 * pt.c (tsubst_decl): Clear the DECL_MODE of the new decl. 2016-03-22 Patrick Palka PR c++/70204 * constexpr.c (non_const_var_error): Check DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P. 2016-03-21 Richard Henderson PR c++/70273 * decl.c (notice_forced_label_r): New. (cp_finish_decl): Use it. 2016-03-21 Jason Merrill PR c++/70285 * cp-gimplify.c (cp_fold) [COND_EXPR]: Handle bit-fields. 2016-03-18 Jason Merrill PR c++/70139 * constexpr.c (cxx_eval_call_expression): Fix trivial copy. PR c++/70147 * class.c (vptr_via_virtual_p): New. (most_primary_binfo): Factor out of build_rtti_vtbl_entries. * cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs): Don't clear a vptr from any virtual base in a not-in-charge 'structor. * decl.c (build_clobber_this): Factor out of start_preparsed_function and begin_destructor_body. Handle virtual bases better. * class.c (build_if_in_charge): Split out from build_base_path. * init.c (expand_virtual_init, expand_default_init): Use it. * call.c (build_special_member_call): Use it. 2016-03-18 Jakub Jelinek PR c++/70267 * init.c (build_new_1): Complain and return error_mark_node if alloc_fn is not _Jv_AllocObject function returning pointer. 2016-03-18 Patrick Palka PR c++/70205 * search.c (adjust_result_of_qualified_name_lookup): Don't update the BASELINK_BINFO of DECL if the second call to lookup_base fails. 2016-03-18 Patrick Palka PR c++/70218 * parser.c (cp_parser_lambda_expression): Move call to pop_deferring_access_checks ahead of the call to cp_parser_end_tentative_firewall. 2016-03-17 Jakub Jelinek PR c++/70144 * cp-tree.h (magic_varargs_p): Return int instead of bool. * call.c (magic_varargs_p): Return int instead of bool, return 2 for Cilk+ reductions, otherwise 1 for magic varargs and 0 for normal varargs. (build_over_call): If magic_varargs_p == 2, call reject_gcc_builtin, if magic_varargs_p == 1, call decay_conversion instead of mark_type_use. Don't store error_mark_node arguments to argarray, instead return error_mark_node. PR c++/70272 * decl.c (begin_destructor_body): Don't insert clobber if is_empty_class (current_class_type). 2016-03-17 Marek Polacek PR c++/70194 * typeck.c (warn_for_null_address): New function. (cp_build_binary_op): Call it. 2016-03-16 Jason Merrill PR c++/70259 * decl.c (start_preparsed_function): Don't clobber an empty base. 2016-03-16 Jakub Jelinek PR c++/70147 * cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs): Conditionalize BINFO_VIRTUAL_P vtable clearing on current_in_charge_parm. PR c++/70147 * cp-ubsan.c (cp_ubsan_maybe_initialize_vtbl_ptrs): Temporarily set in_base_initializer. 2016-03-15 Marek Polacek PR c++/70209 * tree.c (strip_typedefs): Call strip_typedefs again on the DECL_ORIGINAL_TYPE result. 2016-03-15 Jason Merrill PR c++/70095 * pt.c (instantiate_decl): Fix call to variable_template_p. PR c++/70141 * pt.c (for_each_template_parm_r): Always walk into TYPENAME_TYPE. 2016-03-14 Casey Carter Jason Merrill P0184R0: Generalizing the Range-Based For Loop * parser.c (cp_convert_range_for): Set the type of __end separately. (cp_parser_perform_range_for_lookup): Allow different begin/end types if they are comparable. 2016-03-12 Patrick Palka PR c++/70106 * semantics.c (force_paren_expr): Just build a PAREN_EXPR when processing_template_decl and EXPR is a SCOPE_REF. 2016-03-10 Patrick Palka Jakub Jelinek PR c++/70001 * constexpr.c (cxx_eval_vec_init_1): For pre_init case, reuse return value from cxx_eval_constant_expression from earlier elements if it is valid constant initializer requiring no relocations. 2016-03-10 Marek Polacek PR c++/70153 * cp-gimplify.c (cp_fold): Handle UNARY_PLUS_EXPR. 2016-03-09 Cesar Philippidis * parser.c (cp_parser_oacc_loop): Update cclauses and clauses when calling c_finish_omp_clauses. 2016-03-08 Jason Merrill * parser.c (cp_parser_diagnose_invalid_type_name): Give helpful diagnostic for use of "concept". (cp_parser_requires_clause_opt): And "requires". (cp_parser_type_parameter, cp_parser_late_return_type_opt) (cp_parser_explicit_template_declaration): Adjust. * Make-lang.in (check-c++-all): Add "concepts" to std list. P0036R0: Unary Folds and Empty Parameter Packs * pt.c (expand_empty_fold): Remove special cases for *,+,&,|. 2016-03-08 Jakub Jelinek PR c++/70135 * constexpr.c (cxx_eval_loop_expr): Forget saved values of SAVE_EXPRs even after the last iteration of the loop. * decl.c (duplicate_decls): Fix spelling - becuase -> because. 2016-03-07 Patrick Palka PR c++/66786 * pt.c (get_template_info): Handle PARM_DECL. (template_class_depth): Check DECL_P instead of VAR_OR_FUNCTION_DECL_P. 2016-03-05 Jason Merrill PR c++/67364 * constexpr.c (cxx_eval_store_expression): Replace CONSTRUCTOR_ELTS in nested CONSTRUCTORs, too. 2016-03-05 Patrick Palka PR c++/66786 * pt.c (template_class_depth): Given a lambda type, iterate into its LAMBDA_TYPE_EXTRA_SCOPE field instead of its TYPE_CONTEXT. Given a VAR_DECL, iterate into its CP_DECL_CONTEXT. 2016-03-04 Jason Merrill PR c++/69203 * cp-tree.h (COND_EXPR_IS_VEC_DELETE): New. * init.c (build_vec_delete_1): Set it. * constexpr.c (potential_constant_expression_1) [COND_EXPR]: Check it. 2016-03-04 Jakub Jelinek * decl.c (start_preparsed_function): Don't emit start clobber at the start of constructor clones. PR c++/70035 * cp-tree.h (cp_ubsan_maybe_initialize_vtbl_ptrs): New prototype. * decl.c (start_preparsed_function): Call cp_ubsan_maybe_initialize_vtbl_ptrs if needed. * cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs, cp_ubsan_maybe_initialize_vtbl_ptrs): New functions. 2016-03-04 Jason Merrill PR c++/67364 * constexpr.c (cxx_eval_component_reference): Further tweak. * constexpr.c (struct constexpr_ctx): Add save_exprs field. (cxx_eval_loop_expr): Discard SAVE_EXPR values before looping. (cxx_eval_constant_expression) [SAVE_EXPR]: Add it to the set. (cxx_eval_outermost_constant_expr, is_sub_constant_expr): Initialize. PR c++/70067 * tree.c (strip_typedefs): Handle TYPENAME_TYPE lookup finding the same type. 2016-03-03 Jason Merrill * method.c (synthesized_method_walk): operator= can also be constexpr. * pt.c (tsubst_copy_and_build) [LAMBDA_EXPR]: Get LAMBDA_EXPR_RETURN_TYPE from the instantiated closure. PR c++/67164 * pt.c (copy_template_args): New. (tsubst_pack_expansion): Use it. * call.c (build_aggr_conv): Use get_nsdmi. PR c++/51406 * typeck.c (build_static_cast_1): Avoid folding back to lvalue. PR c++/67364 * constexpr.c (cxx_eval_component_reference): Just return an empty CONSTRUCTOR for an empty class. 2016-03-01 Jason Merrill PR c++/70036 * parser.c (cp_parser_requires_clause): Call check_for_bare_parameter_packs. PR c++/51489 * constexpr.c (cxx_eval_binary_expression): Don't VERIFY_CONSTANT the operands. PR c++/69995 * constexpr.c (cxx_eval_call_expression): Unshare arg. (cxx_eval_constant_expression) [DECL_EXPR]: Unshare init. [TARGET_EXPR]: Unshare init. 2016-03-01 Patrick Palka PR c++/68948 PR c++/69961 * pt.c (tsubst_baselink): Reinstate the check for an invalid constructor call. 2016-02-28 Jason Merrill PR c++/69995 * constexpr.c (cxx_eval_store_expression): Unshare init. 2016-02-26 Jason Merrill PR c++/69958 * pt.c (make_argument_pack): New. (tsubst_copy) [SIZEOF_EXPR]: Handle partial expansion. (tsubst_copy_and_build): Likewise. 2016-02-25 Jason Merrill PR c++/69889 * cp-tree.h (AGGR_INIT_FROM_THUNK_P): New. * tree.c (build_aggr_init_expr): Set it. * semantics.c (simplify_aggr_init_expr): Check it. * cp-gimplify.c (cp_genericize_r): Don't walk into a call/aggr_init from a thunk. PR c++/69842 * method.c (forward_parm): Handle parameter packs. * lambda.c (maybe_add_lambda_conv_op): Use it for them. PR c++/67364 * constexpr.c (cxx_eval_component_reference): Don't complain about unevaluated empty classes. PR c++/68049 * tree.c (strip_typedefs): Use DECL_ORIGINAL_TYPE. 2016-02-25 Patrick Palka PR c++/69736 * cp-tree.h (REF_PARENTHESIZED_P): Adjust documentation. (maybe_undo_parenthesized_ref): Declare. * semantics.c (maybe_undo_parenthesized_ref): Split out from check_return_expr. (finish_call_expr): Use it. * typeck.c (check_return_expr): Use it. * pt.c (tsubst_copy_and_build) [INDIRECT_REF]: Retain the REF_PARENTHESIZED_P flag. 2016-02-24 Jakub Jelinek PR c++/69922 * class.c (build_base_path): Set TREE_NO_WARNING on the null_test. Avoid folding it. * init.c (build_vec_delete_1, build_delete): Don't fold the non-NULL tests. * cp-gimplify.c (cp_fold): For TREE_NO_WARNING comparisons with NULL, unless they are folded into INTEGER_CST, error_mark_node or some comparison with NULL, avoid folding them and use either the original comparison or non-folded comparison of folded arguments. * cp-ubsan.c (cp_ubsan_instrument_vptr): Set TREE_NO_WARNING on the comparison, don't fold the comparison right away. 2016-02-24 Jason Merrill PR c++/69323 * friend.c (make_friend_class): Likewise. * decl.c (lookup_and_check_tag): Diagnose invalid dependent friend. 2016-02-24 Jason Merrill PR c++/69323 * pt.c (instantiate_class_template_1): Set processing_template_decl before substituting friend_type. 016-02-24 Martin Sebor PR c++/69912 * tree.c (build_ctor_subob_ref): Compare types' main variants instead of the types as they are. 2016-02-24 Jason Merrill * decl.c (start_preparsed_function): Condition ctor clobber on flag_lifetime_dse > 1. * cp-gimplify.c (cp_fold): Don't fold constexpr calls if -fno-inline. 2016-02-19 Jason Merrill PR c++/69743 * call.c (remaining_arguments): No longer static. * cp-tree.h: Declare it. * pt.c (more_specialized_fn): Use it. 2016-02-19 Jakub Jelinek Bernd Edlinger * Make-lang.in: Invoke gperf with -L C++. * cfns.gperf: Remove prototypes for hash and libc_name_p inlines. * cfns.h: Regenerated. * except.c (nothrow_libfn_p): Adjust. 2016-02-19 Jakub Jelinek PR c++/69850 * rtti.c (ifnonnull): Set TREE_NO_WARNING on the condition, use NE_EXPR instead of EQ_EXPR and swap last two arguments on COND_EXPR. 2016-02-19 Patrick Palka PR c++/68948 * pt.c (tsubst_baselink): Don't diagnose an invalid constructor call here. * semantics.c (finish_call_expr): Don't assume a constructor call is dependent if only the "this" pointer is dependent. When building a constructor call, always use a dummy object. 2016-02-19 Jakub Jelinek PR c++/69850 * init.c (build_vec_delete_1): Set TREE_NO_WARNING on the NE_EXPR condition. * cp-gimplify.c (cp_fold): Propagate TREE_NO_WARNING from binary operators if folding preserved the binop, just with different arguments. PR c++/67767 * parser.c (cp_parser_std_attribute_spec_seq): Don't assume attr_spec is always single element chain, chain all the attributes properly together in the right order. 2016-02-18 Jason Merrill * mangle.c (maybe_check_abi_tags): Add for_decl parm. Call mangle_decl. (mangle_decl): Call maybe_check_abi_tags for function scope. (mangle_guard_variable): Call maybe_check_abi_tags here. (write_guarded_var_name): Not here. 2016-02-17 Jason Merrill PR c++/65985 * constexpr.c (build_constexpr_constructor_member_initializers): Handle an additional STATEMENT_LIST. PR c++/68585 * constexpr.c (cxx_eval_bare_aggregate): Fix 'changed' detection. PR c++/68679 * decl2.c (reset_type_linkage_2): Look through member templates. 2016-02-17 Jakub Jelinek PR c++/69850 * init.c (build_delete): Set TREE_NO_WARNING on ifexp. 2016-02-17 Jason Merrill PR c++/69842 * method.c (forward_parm): Split out from... (add_one_base_init): ...here. * lambda.c (maybe_add_lambda_conv_op): Use it. 2016-02-16 Jason Merrill PR c++/10200 PR c++/69753 * call.c, cp-tree.h, name-lookup.c, pt.c, search.c, semantics.c, tree.c, typeck2.c: Revert earlier changes. * parser.c (cp_parser_lookup_name): Ignore namespace-scope non-type templates after -> or . 2016-02-16 Jakub Jelinek PR c/69835 * typeck.c (cp_build_binary_op): Revert 2015-09-09 change. 2016-02-16 Jason Merrill PR c++/69657 * name-lookup.c (lookup_qualified_name): Add find_hidden parm. (set_decl_namespace): Pass it. Complain about finding a hidden friend. * name-lookup.h: Adjust. 2016-02-16 James Norris * parser.c (cp_parser_oacc_data_clause_deviceptr): Remove checking. * semantics.c (finish_omp_clauses): Add deviceptr checking. 2016-02-15 Jakub Jelinek PR c++/69658 * init.c (expand_default_init): Only call reshape_init in the direct-initialization from an initializer list case. 2016-02-15 Jason Merrill PR c++/69753 * semantics.c (finish_call_expr): Implicit 'this' does not make the call dependent. * search.c (any_dependent_bases_p): Split out... * name-lookup.c (do_class_using_decl): ...from here. * call.c (build_new_method_call_1): Don't complain about missing object if there are dependent bases. Tweak error. * tree.c (non_static_member_function_p): Remove. * pt.c (type_dependent_expression_p): A member template of a dependent type is dependent. * cp-tree.h: Adjust. PR c++/68890 * constexpr.c (verify_ctor_sanity): Remove CONSTRUCTOR_NELTS check. 2016-02-12 Patrick Palka PR c++/69098 * pt.c (lookup_and_finish_template_variable): New function, extracted from ... (tsubst_copy_and_build) [TEMPLATE_ID_EXPR]: ... here. Use it. (tsubst_qualified_id): Consider that EXPR might be a variable template. * typeck.c (check_template_keyword): Don't emit an error if DECL is a variable template. 2016-02-12 Jakub Jelinek * error.c: Spelling fixes - behaviour -> behavior and neighbour -> neighbor. * decl.c: Likewise. * typeck.c (cp_build_binary_op): Fix up behavior spelling in diagnostics. * init.c (build_delete): Likewise. 2016-02-11 Jakub Jelinek PR c/69768 * typeck.c (cp_build_binary_op): cp_fully_fold integer_zerop arguments for -Waddress warning. Fix up formatting. 2016-02-11 Paolo Carlini PR c++/68726 * pt.c (lookup_template_class_1): Check tsubst return value for error_mark_node. 2016-02-10 Jason Merrill PR c++/68926 * pt.c (resolve_nondeduced_context): Add complain parm. (do_auto_deduction): Pass it. * cvt.c (convert_to_void): Likewise. * decl.c (cp_finish_decl): Likewise. * init.c (build_new): Likewise. * rtti.c (get_tinfo_decl_dynamic): Likewise. * semantics.c (finish_decltype_type): Likewise. * typeck.c (decay_conversion): Likewise. * cp-tree.h: Adjust declaration. * call.c (standard_conversion): Add complain parm, pass it along. (implicit_conversion): Pass it. PR c++/69657 * name-lookup.c (ambiguous_decl): Call remove_hidden_names. (lookup_name_real_1): Likewise. (remove_hidden_names): Handle non-functions too. PR c++/10200 * parser.c (cp_parser_lookup_name): When looking for a template after . or ->, only consider class templates. (cp_parser_postfix_dot_deref_expression): Handle the current instantiation. Remember a dependent object expression. * typeck2.c (build_x_arrow): Handle the current instantiation. * ptree.c (debug_tree): Implement for cp_expr. 2016-02-08 Patrick Palka PR c++/69139 * parser.c (cp_parser_simple_type_specifier): Make the check for disambiguating between an 'auto' placeholder and an implicit template parameter more robust. 2016-02-08 Patrick Palka PR c++/69283 PR c++/67835 * decl2.c (mark_used): When given a TEMPLATE_DECL, return after setting its TREE_USED flag. 2016-02-08 Jason Merrill PR c++/69657 * name-lookup.c (do_nonmember_using_decl): Leave anticipated built-ins alone. 2016-02-08 Jakub Jelinek PR c++/59627 * parser.c (cp_parser_omp_declare_reduction): Set assembler name of the DECL_OMP_DECLARE_REDUCTION_P decls. 2016-02-08 Marek Polacek PR c++/69688 * constexpr.c (clear_cv_and_fold_caches): Renamed from clear_cv_cache. Call clear_fold_cache. * cp-tree.h: Adjust declaration. * decl.c (finish_enum_value_list): Call clear_cv_and_fold_caches rather than clear_cv_cache and clear_fold_cache. * typeck2.c (store_init_value): Call clear_cv_and_fold_caches. 2016-02-08 Jason Merrill * cp-tree.h (CONV_FOLD, CONV_BACKEND_CONVERT): New. * cvt.c (convert): Pass CONV_BACKEND_CONVERT. (ocp_convert): Use *_maybe_fold. (cp_convert_to_pointer): Add dofold parameter. * cp-gimplify.c (cp_fold) [CONVERT_EXPR]: Call convert. 2016-02-05 Martin Sebor PR c++/69662 * init.c (find_field_init): New function. (warn_placement_new_too_small): Call it. Handle one-element arrays at ends of structures special. 2016-02-05 Jason Merrill PR c++/68948 * semantics.c (finish_expr_stmt): If expr is error_mark_node, make sure we've seen_error(). 2016-02-05 Patrick Palka PR c++/68948 * pt.c (tsubst_baselink): Diagnose an invalid constructor call if lookup_fnfields returns NULL_TREE and the name being looked up has the form A::A. 2016-02-04 Patrick Palka * constexpr.c (cxx_eval_binary_expression): Fold equality comparisons involving PTRMEM_CSTs. 2016-02-04 Jakub Jelinek * class.c (find_flexarrays): Don't declare dom variable. (diagnose_flexarray): Likewise. 2016-02-02 Martain Sebor PR c++/69251 PR c++/69253 PR c++/69290 PR c++/69277 PR c++/69349 * class.c (walk_subobject_offsets): Avoid testing the upper bound of a flexible array member for equality to null. (find_flexarrays): Remove spurious whitespace introduced in r231665. (diagnose_flexarrays): Avoid checking the upper bound of arrays. (check_flexarrays): Same. * decl.c (compute_array_index_type): Avoid special case for flexible array members. (grokdeclarator): Avoid calling compute_array_index_type for flexible array members. * error.c (dump_type_suffix): Revert changes introduced in r231665 and rendered unnecessary by the changes above. * pt.c (tsubst): Same. * tree.c (build_ctor_subob_ref): Handle flexible array members. * typeck2.c (digest_init_r): Revert changes introduced in r231665. (process_init_constructor_array): Same. (process_init_constructor_record): Same. 2016-02-03 Patrick Palka PR c++/69056 * pt.c (try_one_overload): Handle comparing argument packs so that there is no conflict if we deduced more arguments of an argument pack than were explicitly specified. 2016-01-31 Jakub Jelinek Jason Merrill PR c++/68763 * tree.c (strip_typedefs) [FUNCTION_TYPE]: Avoid building a new function type if nothing is changing. 2016-01-31 Jason Merrill PR c++/69009 * pt.c (partial_specialization_p, impartial_args): New. (instantiate_decl): Call impartial_args. * mangle.c (maybe_check_abi_tags): New. (write_guarded_var_name): Call it. (mangle_ref_init_variable): Call check_abi_tags. * pt.c (lookup_template_class_1): Don't share TYPE_ATTRIBUTES between template and instantiation. 2016-01-29 Jakub Jelinek PR debug/66869 * decl.c (wrapup_globals_for_namespace): Warn about unused static function declarations. 2016-01-29 Marek Polacek PR c++/69509 PR c++/69516 * constexpr.c (cxx_eval_array_reference): Give the "array subscript out of bound" error earlier. * init.c (build_vec_init): Change NE_EXPR into GT_EXPR. Update the commentary. 2016-01-29 Patrick Palka * name-lookup.c (begin_scope): After reusing a cp_binding_level structure, update free_binding_level before the structure's level_chain field gets cleared, not after. 2016-01-28 Jason Merrill PR c++/67407 * search.c (dfs_walk_once, dfs_walk_once_r) (dfs_walk_once_accessible_r, dfs_walk_once_accessible): Use hash_set instead of BINFO_MARKED. (dfs_unmark_r): Remove. 2016-01-28 Patrick Palka PR c++/24208 * parser.c (LEXER_DEBUGGING_ENABLED_P): New macro. (cp_lexer_debugging_p): Use it. (cp_lexer_start_debugging): Likewise. (cp_lexer_stop_debugging): Likewise. 2016-01-27 Marek Polacek PR c/68062 * typeck.c (cp_build_binary_op): Promote operand to unsigned, if needed. Add -Wsign-compare warning. 2016-01-27 Ryan Burn PR cilkplus/69267 * cp-gimplify.c (cilk_cp_gimplify_call_params_in_spawned_fn): Removed superfluous post_p argument in call to cilk_gimplify_call_params_in_spawned_fn. 2016-01-27 Marek Polacek PR c++/69379 * constexpr.c (cxx_eval_constant_expression): Handle PTRMEM_CSTs wrapped in NOP_EXPRs. 2016-01-27 Martin Sebor PR c++/69317 * mangle.c (mangle_decl): Reference the correct (saved) version of the ABI in -Wabi diagnostics. 2016-01-27 Marek Polacek PR c++/69496 * constexpr.c (cxx_eval_array_reference): Evaluate the number of elements of the array. 2016-01-26 Jason Merrill PR c++/68949 * constexpr.c (register_constexpr_fundef): Keep the un-massaged body. (cxx_eval_call_expression): Don't look through clones. * optimize.c (maybe_clone_body): Clear DECL_SAVED_TREE of the alias. * semantics.c (expand_or_defer_fn_1): Keep DECL_SAVED_TREE of maybe-in-charge *tor. 2016-01-26 Jason Merrill PR c++/68782 * constexpr.c (cxx_eval_bare_aggregate): Update TREE_CONSTANT and TREE_SIDE_EFFECTS. (cxx_eval_constant_expression) [CONSTRUCTOR]: Call verify_constructor_flags. 2016-01-26 Jakub Jelinek PR c++/68357 * cp-gimplify.c (cp_fold): If some operand folds to error_mark_node, return error_mark_node instead of building trees with error_mark_node operands. 2016-01-26 David Malcolm PR other/69006 * error.c (print_instantiation_partial_context_line): Add missing newlines from output for the t == NULL case. (print_instantiation_partial_context): Remove call to pp_newline. 2016-01-24 Patrick Palka Revert: 2016-01-18 Patrick Palka PR c++/11858 PR c++/24663 PR c++/24664 * decl.c (grokdeclarator): Don't decay array parameter type to a pointer type if it's dependent. (grokparms): Invoke strip_top_quals instead of directly invoking cp_build_qualified_type. * pt.c (decay_dependent_array_parm_type): New static function. (type_unification_real): Call decay_dependent_array_parm_type to decay a dependent array parameter type to its corresponding pointer type before unification. (more_specialized_fn): Likewise. (get_bindings): Likewise. * tree.c (cp_build_qualified_type): Trivial typofix in documentation. 2016-01-23 Martin Sebor PR c++/58109 PR c++/69022 * decl2.c (is_late_template_attribute): Handle dependent argument to attribute align and attribute vector_size. 2016-01-21 Jason Merrill PR c++/69392 * lambda.c (lambda_capture_field_type): Handle 'this' specially for init-capture, too. PR c++/65687 * decl.c (type_is_deprecated): Don't look into a typedef. PR c++/40751 PR c++/64987 * decl.c (copy_type_enum): Respect TYPE_USER_ALIGN. PR c++/43407 * decl.c (start_enum): Add attributes parameter. * parser.c (cp_parser_enum_specifier): Pass it. * pt.c (lookup_template_class_1): Pass it. * cp-tree.h: Adjust. 2016-01-19 Jason Merrill PR c++/59759 * pt.c (convert_template_argument): Handle VAR_DECL properly. 2016-01-19 Marek Polacek PR c++/68586 * constexpr.c (clear_cv_cache): New. * cp-gimplify.c (clear_fold_cache): New. * cp-tree.h (clear_cv_cache, clear_fold_cache): Declare. * decl.c (finish_enum_value_list): Call them. PR c++/68965 * pt.c (tsubst_copy): Mark elements in expanded vector as used. 2016-01-18 Patrick Palka PR c++/11858 PR c++/24663 PR c++/24664 * decl.c (grokdeclarator): Don't decay array parameter type to a pointer type if it's dependent. (grokparms): Invoke strip_top_quals instead of directly invoking cp_build_qualified_type. * pt.c (decay_dependent_array_parm_type): New static function. (type_unification_real): Call decay_dependent_array_parm_type to decay a dependent array parameter type to its corresponding pointer type before unification. (more_specialized_fn): Likewise. (get_bindings): Likewise. * tree.c (cp_build_qualified_type): Trivial typofix in documentation. 2016-01-18 Jason Merrill * cp-gimplify.c (cp_fold) [CONSTRUCTOR]: Don't clobber the input. * cp-gimplify.c (cp_fold): Remove unnecessary special cases. PR c++/68767 * cp-gimplify.c (cp_fold) [COND_EXPR]: Simplify. Do fold COND_EXPR. (contains_label_1, contains_label_p): Remove. 2016-01-16 Patrick Palka PR c++/69091 * pt.c (type_dependent_expression_p): For a function template specialization, a type is dependent iff any of its template arguments are. 2016-01-16 Patrick Palka * cp-array-notation.c (cp_expand_cond_array_notations): Return error_mark_node only if find_rank failed, not if it was successful. 2016-01-16 Patrick Palka PR c++/68936 * tree.c (build_min_non_dep_call_vec): Don't retain the KOENIG_LOOKUP_P flag of the non-dependent expression that's been built. (build_min_non_dep_op_overload): Instead, do it here. 2016-01-15 Jakub Jelinek PR bootstrap/68271 * parser.h (cp_token): Remove pragma_kind field. Add comment with number of unused bits. * parser.c (eof_token): Remove pragma_kind field initializer. (cp_lexer_get_preprocessor_token): Don't set pragma_kind field, don't clear CPP_PRAGMA u.value. (cp_parser_pragma_kind): New function. (cp_parser_omp_sections_scope, cp_parser_oacc_kernels_parallel, cp_parser_omp_construct, cp_parser_initial_pragma, cp_parser_pragma): Use cp_parser_pragma_kind instead of accessing pragma_kind field. 2016-01-15 Jason Merrill PR c++/68847 * call.c (build_cxx_call): Use fold_non_dependent_expr. * typeck2.c (cxx_incomplete_type_diagnostic): Use the location of value. PR c++/69257 * typeck.c (decay_conversion): Don't call mark_rvalue_use for array/function-to-pointer conversion. Call complete_type_or_maybe_complain for lvalue-to-rvalue conversion. * call.c (convert_like_real): Print call context if decay_conversion errors. 2016-01-14 Tom de Vries PR tree-optimization/68773 * parser.c (cp_parser_oacc_declare, cp_parser_omp_declare_target): Don't set force_output. 2016-01-14 Jason Merrill PR c++/69261 * constexpr.c (find_array_ctor_elt): Handle splitting RANGE_EXPR. 2016-01-12 Marek Polacek PR c++/68979 * constexpr.c (cxx_eval_check_shift_p): Use permerror rather than error_at and adjust the return value. 2016-01-12 Jakub Jelinek PR objc++/68511 PR c++/69213 * cp-gimplify.c (cp_gimplify_expr) : Don't return GS_ERROR whenever seen_error (), only if *expr_p contains cilk spawn stmt, but cilk_detect_spawn_and_unwrap failed. PR c++/66808 PR c++/69000 * pt.c (tsubst_decl): If not local_p, clear DECL_TEMPLATE_INFO. 2016-01-11 Jason Merrill PR c++/69131 * method.c (walk_field_subobs): Add dtor_from_ctor parm. (process_subob_fn): Likewise. Don't consider triviality if true. (synthesize_method_walk): Pass it. 2016-01-11 David Malcolm PR c++/68795 * parser.c (cp_parser_postfix_expression): Initialize close_paren_loc to UNKNOWN_LOCATION; only use it if it has been written to by cp_parser_parenthesized_expression_list. (cp_parser_parenthesized_expression_list): Document the behavior with respect to the CLOSE_PAREN_LOC param. 2016-01-11 Jakub Jelinek PR c++/69211 * cp-gimplify.c (cp_fold): If COMPOUND_EXPR or MODIFY_EXPR folded operands have side-effects, but folding changed any of them, build a new tree with the folded operands instead of returning the unfolded tree. 2016-01-09 Marek Polacek PR c++/69113 * decl2.c (comdat_linkage): Only set DECL_COMDAT if TREE_PUBLIC is set. 2016-01-09 Jakub Jelinek PR c++/69164 * class.c (layout_class_type): Use copy_node to copy FIELD_DECLs. 2016-01-08 Jason Merrill PR c++/69158 * constexpr.c (cxx_fold_indirect_ref): Handle array type differing in completion. 2016-01-08 Marek Polacek PR c++/68449 * constexpr.c (cxx_eval_constant_expression): Handle NULL initializer. 2016-01-08 Jason Merrill * constexpr.c (cxx_eval_call_expression): Remove convert_to_void workaround. PR c++/68983 PR c++/67557 * cvt.c (convert_to_void): Don't strip a TARGET_EXPR of TREE_ADDRESSABLE type. PR c++/68983 PR c++/67557 * call.c (unsafe_copy_elision_p): Look through COMPOUND_EXPR. 2016-01-05 Nathan Sidwell PR c++/58583 * pt.c (build_non_dependent_expr): Don't try a checking fold when parsing an nsdmi. 2016-01-04 Jakub Jelinek Update copyright years. Copyright (C) 2016 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.