2016-12-24 Jakub Jelinek PR middle-end/78901 * except.c (nothrow_libfn_p): Expect libc_name_p to return const struct libc_name_struct *, if it returns NULL, return 0, otherwise check c_ver and use flag_isoc99 or flag_isoc11. * cfns.gperf: Add %struct-type and libc_name_struct definition. For all C89 C library functions add , 89 after the name, add C99 C library functions with , 99 and C11 C library functions with , 11 suffix. * cfns.h: Regenerated. 2016-12-22 Jason Merrill PR c++/78906 * pt.c (finish_template_variable): Use most_general_template. PR c++/78898 PR c++/42329 * pt.c (unify): Don't look for a class template from a non-class. 2016-12-21 Jakub Jelinek PR c++/72707 * name-lookup.c (pushdecl_maybe_friend_1): Do check shadowing of artificial x if it is an anonymous union variable. PR bootstrap/78817 * typeck.c (cp_build_function_call_vec): If check_function_arguments returns true, set TREE_NO_WARNING on CALL_EXPR. * call.c (build_over_call): Likewise. PR c++/77830 * constexpr.c (cxx_eval_array_reference): Perform out of bounds verification even if lval is true, just allow one past the last element in that case. (cxx_eval_store_expression): Detect stores to out of bound ARRAY_REF. 2016-12-21 Jason Merrill Implement P0522R0, matching of template template arguments. * pt.c (coerce_template_template_parms): Allow a template argument that's less specialized than the parameter. (unify_bound_ttp_args): Adjust parm's args to apply to arg's template. (coerce_template_args_for_ttp): Split out from lookup_template_class_1. (coerce_ttp_args_for_tta, store_defaulted_ttp) (lookup_defaulted_ttp, add_defaults_to_ttp): New. (process_partial_specialization): Set DECL_CONTEXT of template template-parameters. (coerce_template_parms): Only inform when complain. (expand_template_argument_pack): Handle error_mark_node. (convert_template_argument, template_args_equal, unify): Handle any_targ_node. * cp-tree.h (enum cp_tree_index): Add CPTI_ANY_TARG. (any_targ_node): New. * decl.c (cxx_init_decl_processing): Set it. * name-lookup.c (consider_binding_level): Ignore names with embedded spaces. PR c++/42329 * pt.c (unify_bound_ttp_args): Split out from unify. (try_class_unification): Handle BOUND_TEMPLATE_TEMPLATE_PARM. (unify): Check for type/non-type mismatch early. [BOUND_TEMPLATE_TEMPLATE_PARM]: Try get_template_base. * pt.c (coerce_template_parms): Consider variadic_args_p before complaining about too many template arguments. * pt.c (process_partial_specialization): Use get_partial_spec_bindings to check that the partial specialization is more specialized than the primary template. * pt.c (convert_template_argument): Pass args to do_auto_deduction. (mark_template_parm): Handle deducibility from type of non-type argument here. (for_each_template_parm_r): Not here. * ptree.c (cxx_print_type): Print args of BOUND_TEMPLATE_TEMPLATE_PARM. (cxx_print_decl): Print DECL_TEMPLATE_PARMS. PR c++/78767 - ICE with inherited constructor default argument * method.c (strip_inheriting_ctors): Strip template as appropriate. PR c++/78749 - friend in anonymous namespace * decl.c (wrapup_globals_for_namespace): Don't complain about friend pseudo-template instantiations. 2016-12-16 Richard Biener PR c++/71694 * cp-objcp-common.h (cp_unit_size_without_reusable_padding): Declare. (LANG_HOOKS_UNIT_SIZE_WITHOUT_REUSABLE_PADDING): Define. * cp-objcp-common.c (cp_unit_size_without_reusable_padding): New. 2016-12-15 Jakub Jelinek P0490R0 GB 20: decomposition declaration should commit to tuple interpretation early * decl.c (get_tuple_size): Make static. If inst is error_mark_node or non-complete type, return NULL_TREE, otherwise if lookup_qualified_name fails or doesn't fold into INTEGER_CST, return error_mark_node. (get_tuple_element_type, get_tuple_decomp_init): Make static. (cp_finish_decomp): Pass LOC to get_tuple_size. If it returns error_mark_node, complain and fail. 2016-12-15 Nathan Sidwell PR c++/77585 * pt.c (instantiate_decl): Push to class scope lambda resides within when instantiating a generic lambda function. 2016-12-14 Martin Sebor PR c++/78774 * pt.c (convert_template_argument): Avoid assuming operand type is non-null since that of SCOPE_REF is not. 2016-12-14 Martin Jambor * parser.c: Include omp-general.h and omp-offload.h instead of omp-low.h. (cp_parser_omp_simd): Adjusted calls to find_omp_clause to use its new name. (cp_parser_omp_target_update): Likewise. (cp_parser_oacc_declare): Likewise. (cp_parser_oacc_enter_exit_data): Likewise. (cp_parser_oacc_update): Likewise. (cp_finalize_oacc_routine): Adjusted call to get_oacc_fn_attrib, build_oacc_routine_dims and replace_oacc_fn_attrib to use their new names. * semantics.c: Include omp-general insteda of omp-low.h. (finish_omp_for): Adjusted calls to find_omp_clause to use its new name. (finish_omp_cancel): Likewise. (finish_omp_cancellation_point): Likewise. 2016-12-14 Marek Polacek PR c++/72775 * init.c (perform_member_init): Diagnose member initializer for flexible array member. 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. PR c++/69481 * cp-tree.h (TYPE_TEMPLATE_INFO_MAYBE_ALIAS): Always use TYPE_ALIAS_TEMPLATE_INFO for aliases. 2016-12-13 Nathan Sidwell PR c++/69481 * cp-tree.h (TYPE_TEMPLATE_INFO): Remove alias type checking. (TYPE_ALIAS_TEMPLATE_INFO): New. (TYPE_TEMPLATE_INFO_MAYBE_ALIAS): New. Use those macros. * error.c (dump_alias_template_specialization): Adjust. * pt.c (maybe_process_partial_specialization, iterative_has_template_arg, find_parameter_packs_r, alias_template_specialization_p, dependent_alias_template_spec_p, get_underlying_template, lookup_template_class_1, unify): Adjust template using decl access. 2016-12-11 Paolo Carlini PR c++/78637 * parser.c (cp_parser_namespace_definition): Increment nested_definition_count only if push_namespace succeeds. 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. 2016-12-08 Jakub Jelinek P0003R5 - removal of dynamic exception specification from C++17 * parser.c (cp_parser_exception_specification_opt): For C++17 error out on throw ( type-id-list ), for C++11 and C++14 issue -Wdeprecated warning on it. Formatting fix. Treat throw() in C++17 as noexcept(true). 2016-12-07 Martin Jambor PR c++/78589 * error.c (dump_decl): Use dump_function_name to dump !DECL_LANG_SPECIFIC function decls with no or self-referencing abstract origin. 2016-12-07 Nathan Sidwell * pt.c (tsubst <{NON,}TYPE_ARGUMENT_PACK>: Simplify control flow and avoid re-tsubsting type. * cp-tree.h (enum cp_tree_index): Add CPTI_AUTO_IDENTIFIER & CPTI_DECLTYPE_AUTO_IDENTIFIER. (auto_identifier, decltype_auto_identifier): New. *decl.c (initialize_predefined_identifiers): Add 'auto' and 'decltype(auto)'. (grokdeclarator): Use cached identifier. * pt.c (make_decltype_auto, make_auto, make_constrained_auto, is_auto): Likewise. 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. 2016-12-02 Cesar Philippidis James Norris * parser.c (cp_parser_oacc_enter_exit_data): Update diagnostics. (cp_parser_pragma): Error when PRAGMA_OACC_{ENTER_DATA, EXIT_DATA,WAIT} are not used in compound statements. 2016-12-01 Jason Merrill * call.c (add_function_candidate): Also exclude inherited ctors that take a type reference-related to the derived class. * call.c (add_function_candidate): Exclude inherited copy/move ctors. 2016-11-29 David Malcolm PR c++/77922 * name-lookup.c (lookup_name_fuzzy): Filter out reserved words that were filtered out by init_reswords. 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. 2016-11-27 Jason Merrill PR c++/77907 * constexpr.c (cxx_eval_constant_expression): Use cp_fold_convert. 2016-11-24 Martin Liska PR bootstrap/78493 * parser.c (cp_parser_range_for): Use safe_push instead of quick_push. 2016-11-23 Jakub Jelinek PR c++/77907 * cp-gimplify.c (cp_fold) : When calling constructor and maybe_constant_value returns non-CALL_EXPR, create INIT_EXPR with the object on lhs and maybe_constant_value returned expr on rhs. PR c++/71450 * pt.c (tsubst_copy): Return error_mark_node when mark_used fails, even when complain & tf_error. 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. 2016-11-21 Bernd Edlinger PR c++/71973 * decl.c (duplicate_decls): Warn when a built-in function is redefined. Don't overload builtin functions with C++ functions. Handle const_tm_ptr_type_node like file_ptr_node. Copy the TREE_NOTHROW flag unmodified to the old decl. 2016-11-18 Jason Merrill PR objc++/78418 - ICE in string tests on darwin * tree.c (lvalue_kind): Guard DECL_HAS_VALUE_EXPR_P. 2016-11-18 Jakub Jelinek PR c++/77285 * mangle.c (mangle_tls_init_fn, mangle_tls_wrapper_fn): Call check_abi_tags. 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. 2016-11-18 Richard Sandiford Alan Hayward David Sherwood * class.c (finish_struct_bits): Use SET_DECL_MODE. (build_base_field_1, layout_class_type, finish_struct_1): Likewise. * decl.c (make_label_decl): Likewise. * pt.c (tsubst_decl): Likewise. 2016-11-17 Jason Merrill PR c++/78193 - inherited ctor regressions on sparc32. * call.c (build_over_call): Don't set CALL_FROM_THUNK_P here. (build_call_a): Set it here, and don't insert EMPTY_CLASS_EXPR. (convert_like_real) [ck_rvalue]: Also pass non-addressable types along directly. 2016-11-17 Paolo Carlini PR c++/55080 * parser.c (cp_parser_non_integral_constant_expression): Issue a pedwarn instead of an error for case NIC_FLOAT. 2016-11-17 Jason Merrill PR c++/78124 - list-initialization and inherited ctor * name-lookup.c (do_class_using_decl): Set CLASSTYPE_NON_AGGREGATE. PR c++/78369 - {} as default argument * call.c (build_special_member_call): Handle CONSTRUCTOR. PR c++/68377 * parser.c (cp_parser_fold_expression): Check TREE_NO_WARNING. 2016-11-16 Jason Merrill PR c++/78373 * decl.c (cp_finish_decl): Don't set TREE_CONSTANT on a reference. * typeck2.c (store_init_value): Likewise. * decl.c (store_decomp_type, lookup_decomp_type): New. (cp_finish_decomp): Call store_decomp_type. * semantics.c (finish_decltype_type): Call lookup_decomp_type. * cp-tree.h: Declare lookup_decomp_type. 2016-11-15 Jakub Jelinek * decl.c (cp_finish_decomp): For DECL_NAMESPACE_SCOPE_P decl, set DECL_ASSEMBLER_NAME. * parser.c (cp_parser_decomposition_declaration): Likewise if returning error_mark_node. * mangle.c (mangle_decomp): New function. * cp-tree.h (mangle_decomp): New declaration. 2016-11-15 Jason Merrill PR c++/78358 * semantics.c (finish_decltype_type): Strip references for a tuple decomposition. * cp-tree.h (DECL_DECOMPOSITION_P): False for non-variables. * decl2.c (decl_maybe_constant_var_p): References qualify. * constexpr.c (non_const_var_error): Handle references. * init.c (constant_value_1): Always check decl_constant_var_p. * cp-gimplify.c (cp_fold_maybe_rvalue): Don't fold references. * error.c (dump_decl_name): Split out from dump_decl. 2016-11-14 Jason Merrill * tree.c (bitfield_p): New. * cp-tree.h: Declare it. * typeck.c (cxx_sizeof_expr, cxx_alignof_expr) (cp_build_addr_expr_1): Use it instead of DECL_C_BIT_FIELD. * decl.c (cp_finish_decomp): Look through reference. Always SET_DECL_DECOMPOSITION_P. * semantics.c (finish_decltype_type): Adjust decomposition handling. 2016-11-13 Jakub Jelinek Jason Merrill Implement P0217R3 - C++17 structured bindings * cp-tree.h (struct lang_decl_base): Add decomposition_p. (DECL_DECOMPOSITION_P): New (enum auto_deduction_context): Add adc_decomp_type. (enum cp_declarator_kind): Add cdk_decomp. * constexpr.c (cxx_eval_constant_expression): Look through DECL_VALUE_EXPR. (potential_constant_expression_1): Likewise. * decl.c (reshape_init): Preserve CONSTRUCTOR_IS_DIRECT_INIT. (check_initializer): Use build_aggr_init for DECL_DECOMPOSITION_P. (cp_finish_decl): Pass adc_decomp_type for decomposition. (find_decomp_class_base, get_tuple_size, get_tuple_element_type) (get_tuple_decomp_init, cp_finish_decomp): New. (grokdeclarator): Handle decomposition. * init.c (build_aggr_init): Handle decomposition array. (build_vec_init): Handle initialization from { array }. * name-lookup.c (add_function): Always wrap TEMPLATE_DECL in OVERLOAD. * parser.c (declarator_can_be_parameter_pack): Handle cdk_decomp. (function_declarator_p, strip_declarator_types) (cp_parser_check_declarator_template_parameters): Likewise. (cp_parser_range_for, cp_convert_range_for): Handle decomposition. (cp_parser_simple_declaration): Parse decomposition. (cp_parser_decomposition_declaration): New. * pt.c (tsubst_decomp_names): New. (subst_expr) [DECL_EXPR, RANGE_FOR_STMT]: Handle decomposition. (do_auto_deduction): Handle adc_decomp_type. * semantics.c (finish_decltype_type): Look through DECL_VALUE_EXPR. * typeck.c (is_bitfield_expr_with_lowered_type): Likewise. * tree.c (lvalue_kind): Likewise. (cp_build_reference_type): Handle reference collapsing. 2016-11-13 Jason Merrill * call.c (build_new_method_call_1): Include template arguments in error message. (print_error_for_call_failure): Likewise. (build_new_function_call): Pass them in. * name-lookup.c (supplement_binding_1): Don't complain about a conflict with an erroneous declaration. * error.c (dump_decl): Fix printing of alias declaration. * decl.c (make_typename_type): Call cxx_incomplete_type_error. * parser.c (cp_parser_diagnose_invalid_type_name): Likewise. * semantics.c (perform_koenig_lookup): Don't wrap an error in TEMPLATE_ID_EXPR. 2016-11-13 Prathamesh Kulkarni PR c/35503 * parser.c (cp_parser_postfix_pexpression): Call warn_for_restrict. 2016-11-12 Jason Merrill CWG 2233 * typeck.c (convert_arguments): Handle default arg followed by none. * constexpr.c (potential_constant_expression_1): REALPART_EXPR and IMAGPART_EXPR can be lvalues. DR 374 PR c++/56480 * pt.c (check_specialization_namespace): Allow any enclosing namespace. (check_unqualified_spec_or_inst): New. (check_explicit_specialization): Call it. * parser.c (cp_parser_elaborated_type_specifier) (cp_parser_class_head): Call it. 2016-11-10 Jason Merrill PR c++/77337 * pt.c (tsubst_friend_function): Don't set DECL_INITIAL. (instantiate_decl): It's OK to defer a constexpr function. * cp-tree.h (DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION): Check DECL_LANG_SPECIFIC. * decl2.c (decl_defined_p): Use it. No longer static. * decl.c (redeclaration_error_message): Use decl_defined_p. * constexpr.c (cxx_eval_call_expression): Set input_location around call to instantiate_decl. 2016-11-10 Jakub Jelinek * mangle.c (mangle_decl): Only emit -Wc++1z-compat warnings for public or external symbols. 2016-11-09 Jakub Jelinek PR c++/78283 * mangle.c (start_mangling): Reset G.need_cxx1z_warning. 2016-11-09 Jason Merrill * parser.c (cp_parser_simple_type_specifier): Allow placeholder for template template parameter. (cp_parser_type_id_1): Improve diagnostic. * decl.c (grokdeclarator): Handle class deduction diagnostics here. * pt.c (splice_late_return_type): Not here. (tsubst) [TEMPLATE_TYPE_PARM]: Substitute into placeholder template. (do_class_deduction): Handle non-class templates. Implement P0127R2, Declaring non-type parameters with auto. * cp-tree.h (enum auto_deduction_context): Add adc_unify. * decl.c (grokdeclarator): Allow 'auto' in C++17 template non-type parameter types. * pt.c (do_auto_deduction): Add outer_targs parameter. (convert_template_argument): Call do_auto_deduction. If adc_unify, don't give up on dependent init. (unify): Likewise. In C++17, walk into the type of a TEMPLATE_PARM_INDEX. (for_each_template_parm): Add any_fn parameter. (struct pair_fn_data): Likewise. (for_each_template_parm_r): Call it for any tree. In C++17, walk into the type of a TEMPLATE_PARM_INDEX. (zero_r, array_deduction_r, try_array_deduction): New. (type_unification_real): Call try_array_deduction. (get_partial_spec_bindings): Likewise. 2016-11-07 Jason Merrill Implement P0012R1, Make exception specifications part of the type system. * cp-tree.h (enum tsubst_flags): Add tf_fndecl_type. (flag_noexcept_type, ce_type): New. * call.c (build_conv): Add ck_fnptr. (enum conversion_kind): Change ck_tsafe to ck_fnptr. (convert_like_real): Likewise. (standard_conversion): Likewise. Allow function pointer conversions for pointers to member functions. (reference_compatible_p): Allow function pointer conversions. (direct_reference_binding): Likewise. (reference_binding): Reference-compatible is no longer a subset of reference-related. (is_subseq): Also strip ck_lvalue after next_conversion. * class.c (instantiate_type): Check fnptr_conv_p. (resolve_address_of_overloaded_function): Likewise. * cvt.c (can_convert_tx_safety): Now static. (noexcept_conv_p, fnptr_conv_p, strip_fnptr_conv): New. * decl.c (flag_noexcept_type): Define. (cxx_init_decl_processing): Set it. (bad_specifiers): Check it. (grokdeclarator) [cdk_function]: Add exception-spec to type here. * lambda.c (maybe_add_lambda_conv_op): Add exception-spec to returned pointer. * mangle.c (struct globals): Add need_cxx1z_warning. (mangle_decl): Check it. (write_exception_spec): New. (write_function_type): Call it. (canonicalize_for_substitution): Handle exception spec. (write_type): Likewise. (write_encoding): Set processing_template_decl across mangling of partially-instantiated type. * pt.c (determine_specialization): Pass tf_fndecl_type. (tsubst_decl, fn_type_unification): Likewise. (tsubst): Strip tf_fndecl_type, pass it to tsubst_exception_specification. (convert_nontype_argument_function): Handle function pointer conversion. (convert_nontype_argument): Likewise. (unify, for_each_template_parm_r): Walk into noexcept-specifier. * rtti.c (ptr_initializer): Encode noexcept. * tree.c (canonical_eh_spec): New. (build_exception_variant): Use it. * typeck.c (composite_pointer_type): Handle fnptr conversion. (comp_except_specs): Compare canonical EH specs. (structural_comptypes): Call it. * call.c (standard_conversion): Reorganize pointer conversions. * pt.c (convert_nontype_argument_function): Convert to ref here. (convert_nontype_argument): Not here. (convert_template_argument): Add original type to error message. (RECUR_AND_CHECK_FAILURE): Remove trailing semicolon. (unify): Compare function-qualifiers. * typeck.c (same_type_ignoring_top_level_qualifiers_p): Use cp_build_qualified_type rather than TYPE_MAIN_VARIANT. * pt.c (push_tinst_level_loc): Add template instantiations to the announce_function stream. 2016-11-04 Paolo Carlini PR c++/67980 * pt.c (tsubst_expr, case IF_STMT): Use fold_non_dependent_expr to suppress unwanted warnings. 2016-11-03 Jason Merrill PR c++/78198 * call.c (convert_default_arg): Look through inheriting ctors. 2016-11-03 Jakub Jelinek Alexandre Oliva Jason Merrill PR debug/28767 PR debug/56974 * tree.c (cp_check_qualified_type): Use check_base_type and TYPE_QUALS comparison instead of check_qualified_type. (cxx_type_hash_eq): Return false if type_memfn_rqual don't match. * cp-objcp-common.c (cp_get_debug_type): New function. (cp_decl_dwarf_attribute): Don't handle types here. (cp_type_dwarf_attribute): New function. * cp-objcp-common.h (cp_get_debug_type, cp_type_dwarf_attribute): Declare. (LANG_HOOKS_GET_DEBUG_TYPE, LANG_HOOKS_TYPE_DWARF_ATTRIBUTE): Define. 2016-11-03 Jason Merrill * tree.c (cp_check_qualified_type): Call check_base_type instead of check_qualified_type. (cxx_type_hash_eq): Check ref-qualifiers. * typeck.c (apply_memfn_quals): No need to mess with TYPE_CANONICAL. 2016-11-01 Jason Merrill Implement P0136R1, Rewording inheriting constructors. * call.c (enum rejection_reason_code): Add rr_inherited_ctor. (inherited_ctor_rejection): New. (add_function_candidate): Reject inherited ctors for copying. (enforce_access): Use strip_inheriting_ctors. (print_z_candidate): Likewise. Handle rr_inherited_ctor. (convert_like_real): Avoid copying inheriting ctor parameters. (build_over_call): Likewise. A base ctor inheriting from vbase has no parms. Sorry about varargs. (joust): A local constructor beats inherited with the same convs. * class.c (add_method): Handle hiding inheriting ctors. (one_inherited_ctor): Handle new semantics. (add_implicitly_declared_members): Pass using_decl down. (build_clone): A base ctor inheriting from vbase has no parms. * cp-tree.h (DECL_INHERITED_CTOR): Store this instead of the base. (SET_DECL_INHERITED_CTOR): Likewise. (DECL_INHERITED_CTOR_BASE): Adjust. * constexpr.c: Adjust. * error.c (dump_function_decl): Decorate inheriting ctors. * init.c (emit_mem_initializers): Suppress access control in inheriting ctor. * mangle.c (write_special_name_constructor): Handle new inheriting ctor mangling. * method.c (strip_inheriting_ctors, inherited_ctor_binfo) (ctor_omit_inherited_parms, binfo_inherited_from): New. (synthesized_method_walk): Use binfo_inherited_from. Suppress access control in inheriting ctor. (deduce_inheriting_ctor): Deleted if ambiguous ctor inheritance. (maybe_explain_implicit_delete): Explain ambigous ctor inheritance. (add_one_base_init, do_build_copy_constructor): Adjust. (locate_fn_flags, explain_implicit_non_constexpr): Adjust. (implicitly_declare_fn): Adjust. (get_inherited_ctor): Remove. * name-lookup.c (do_class_using_decl): Check for indirect ctor inheritance. * optimize.c (cdtor_comdat_group): Adjust for new mangling. (maybe_clone_body): Handle omitted parms in base clone. (maybe_thunk_body): Don't thunk if base clone omits parms. * pt.c (tsubst_decl): Adjust. (instantiate_template_1): Suppress access control in inheriting ctor. (fn_type_unification): Do deduction with inherited ctor. * tree.c (special_function_p): Adjust. 2016-11-01 Jakub Jelinek * cp-objcp-common.c (cp_decl_dwarf_attribute): Handle DW_AT_inline. 2016-11-01 Jason Merrill * class.c (declared_access): Split out from handle_using_decl. 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;. PR c++/77886 * pt.c (tsubst_expr) Copy over FALLTHROUGH_LABEL_P flag to the new LABEL_DECL. (tsubst_expr) : Likewise. 2016-09-11 Le-Chun Wu Mark Wielaard * name-lookup.c (pushdecl_maybe_friend): When emitting a shadowing warning, use the code corresponding to the given -Wshadow= variant. 2016-10-26 Jason Merrill * class.c (add_method): Allow using-declarations to coexist. 2016-10-25 Jason Merrill * constexpr.c (maybe_constant_init): Pull out TARGET_EXPR_INITIAL. (cxx_eval_outermost_constant_expr): Don't return a CONSTRUCTOR with CONSTRUCTOR_NO_IMPLICIT_ZERO. (cxx_eval_call_expression): Clear CONSTRUCTOR_NO_IMPLICIT_ZERO. 2016-10-25 Jakub Jelinek * parser.c (cp_parser_postfix_expression): Adding missing break;. * cp-tree.h (finish_builtin_launder): Declare. * parser.c (cp_parser_postfix_expression): Handle RID_BUILTIN_LAUNDER. * semantics.c (finish_builtin_launder): New function. * pt.c (tsubst_copy_and_build): Handle instantiation of IFN_LAUNDER. * constexpr.c (cxx_eval_internal_function): Handle IFN_LAUNDER. (potential_constant_expression_1): Likewise. 2016-10-24 Jakub Jelinek * cp-objcp-common.c (cp_decl_dwarf_attribute): Handle DW_AT_reference and DW_AT_rvalue_reference. * cxx-pretty-print.c (pp_cxx_check_constraint): Use VAR_P (x) instead of TREE_CODE (x) == VAR_DECL. * constraint.cc (get_concept_definition): Likewise. (finish_shorthand_constraint): Likewise. * init.c (warn_placement_new_too_small): Likewise. * cp-gimplify.c (cp_genericize_r): Likewise. 2016-10-21 Jason Merrill PR c++/77656 * pt.c (convert_template_argument): Call convert_nontype_argument on value-dependent but not type-dependent arguments. (convert_nontype_argument): Handle value-dependent arguments. (canonicalize_expr_argument): New. (deducible_expression, unify): Skip CONVERT_EXPR. * error.c (dump_template_argument): Likewise. * mangle.c (write_expression): Likewise. * ptree.c (cxx_print_xnode) [TEMPLATE_PARM_INDEX]: Dump the decl. 2016-10-21 Jakub Jelinek * cp-objcp-common.c (cp_decl_dwarf_attribute): Handle DW_AT_const_expr. 2016-10-17 Jakub Jelinek * cp-objcp-common.h (cp_function_decl_explicit_p, cp_function_decl_deleted_p, cp_function_decl_defaulted): Remove. (cp_decl_dwarf_attribute): Declare. (LANG_HOOKS_FUNCTION_DECL_EXPLICIT_P, LANG_HOOKS_FUNCTION_DECL_DELETED_P, LANG_HOOKS_FUNCTION_DECL_DEFAULTED): Remove. (LANG_HOOKS_DECL_DWARF_ATTRIBUTE): Redefine. * cp-objcp-common.c (cp_function_decl_explicit_p, cp_function_decl_deleted_p, cp_function_decl_defaulted): Remove. (cp_decl_dwarf_attribute): New function. 2016-10-15 Jason Merrill PR c++/77945 * constexpr.c (maybe_simplify_trivial_copy): New. (cxx_eval_store_expression): Call it. * call.c (build_over_call): Use unsigned char for trivial copy. 2016-10-14 Jason Merrill Implement P0017R1, C++17 aggregates with bases. * class.c (build_base_field_1): Split out from... (build_base_field): ...here. In C++17 mode, build a field for empty bases. * decl.c (xref_basetypes): In C++17 aggregates can have bases. (next_initializable_field): Allow base fields in C++17. * typeck2.c (process_init_constructor_record): Likewise. 2016-10-14 Jakub Jelinek DR 1511 - const volatile variables and ODR * decl.c (grokvardecl): Change flags argument to type_quals, add conceptp argument. Set TREE_PUBLIC for non-static volatile vars. (grokdeclarator): Adjust grokvardecl caller. 2016-10-13 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. 2016-10-13 Jakub Jelinek Jason Merrill Implement P0386R2 - C++17 inline variables * cp-tree.h (struct lang_type): Shrink language field to 1 bit from 4. Add var_declared_inline_p field. Mention 2 spare bits. (DECL_VAR_DECLARED_INLINE_P): Define. (SET_DECL_VAR_DECLARED_INLINE_P): Define. (DECL_INLINE_VAR_P): Define. (diagnose_inline_vars_for_namespace): Declare. * decl.c (diagnose_inline_vars_for_namespace): New function. (duplicate_decls): For static data members copy DECL_DECLARED_CONSTEXPR_P. (redeclaration_error_message): Handle C++17 redundant redeclaration of constexpr static data member outside of class. (maybe_commonize_var): Handle inline variables. (check_initializer): Ignore inline variables for diagnostics. Adjust diagnostic wording for C++17. (make_rtl_for_nonlocal_decl): Allow in-class definition of inline static data members. (bad_specifiers): Don't diagnose inline on variables here. (grokvardecl): Add inlinep argument, non-static const inline variables are TREE_PUBLIC. (check_static_variable_definition): Return early also for inline variables. (mark_inline_variable): New. (grokdeclarator): Handle inline variables and inline static data members. * typeck2.c (store_init_value): Don't diagnose non-constant initializers for non-constexpr inline static data members. * decl2.c (vague_linkage_p): Return true for inline variables. (c_parse_final_cleanups): In-class declaration of inline static data members is a definition. Call diagnose_inline_vars_for_namespace through walk_namespaces. * pt.c (instantiate_decl): Set pattern_defined for in-class definitions of inline static data members. 2016-10-13 Jason Merrill * decl.c (mark_inline_variable): New. >>>>>>> .r241142 2016-10-13 Thomas Preud'homme * decl2.c: Include memmodel.h. * rtti.c: Likewise. 2016-10-11 Jason Merrill PR c++/77742 * init.c (build_new_1): Don't -Waligned-new about placement new. (malloc_alignment): New. Consider MALLOC_ABI_ALIGNMENT. * decl.c (cxx_init_decl_processing): New. 2016-10-10 Jason Merrill PR c++/77890 PR c++/77912 * pt.c (do_class_deduction): Set cp_unevaluated_operand. (tsubst) [TEMPLATE_TYPE_PARM]: Copy CLASS_PLACEHOLDER_TEMPLATE. 2016-10-08 Jason Merrill * cp-gimplify.c (cp_fold): Add variable name. * cp-gimplify.c (cp_fold): Distribute cp_truthvalue_conversion into COND_EXPR. 2016-10-07 Jason Merrill Further P0135 refinement. * call.c (build_user_type_conversion_1): Consider conversions from a single element in an initializer-list. (build_temp): Undo early_elide_copy change. (build_over_call): Check that we don't try to copy a TARGET_EXPR in C++17 mode. Set user_conv_p here. (convert_like_real): Not here. (check_self_delegation): Split out from... (build_special_member_call): ...here. Handle C++17 copy elision. * cvt.c (early_elide_copy): Remove. (ocp_convert): Undo early_elide_copy change. * except.c (build_throw): Likewise. * init.c (expand_default_init): Likewise. * typeck.c (cp_build_modify_expr): Likewise. 2016-10-07 Nathan Sidwell PR c++/64433 DR1658, DR1611 * init.c (emit_mem_initializers): Don't construct vbases of abstract classes. (push_base_cleanups): Don't push vbase cleanups for abstract class when in C++14 mode. * method.c (synthethesized_method_walk): Don't walk vbases of abstract classes when in C++14 mode. 2016-10-07 Jakub Jelinek Implement LWG2296 helper intrinsic * parser.c (cp_parser_postfix_expression): Handle RID_ADDRESSOF. * cp-objcp-common.c (cp_common_init_ts): Handle ADDRESSOF_EXPR. * constexpr.c (potential_constant_expression_1): Likewise. * error.c (dump_expr): Likewise. * typeck.c (cp_build_addressof): New function. * cp-tree.h (cp_build_addressof): Declare. * cxx-pretty-print.h (pp_cxx_addressof_expression): Declare. * cp-tree.def (ADDRESSOF_EXPR): New tree code. * cxx-pretty-print.c (cxx_pretty_printer::primary_expression): Handle ADDRESSOF_EXPR. Add __builtin_addressof and __has_unique_object_representations into syntax in function comment. (pp_cxx_addressof_expression): New function. * pt.c (tsubst_copy_and_build): Handle ADDRESSOF_EXPR. 2016-10-07 Bernd Edlinger PR c++/77700 * parser.c (cp_parser_base_specifier): Fix a warning. 2016-10-07 Bernd Schmidt PR c++/69733 * decl.c (grokdeclarator): Try to find the correct location for an ignored qualifier. 2016-10-07 Martin Liska * lambda.c (maybe_add_lambda_conv_op): Set default value. 2016-10-06 Jason Merrill * call.c (build_temp, convert_like_real): Don't re-copy TARGET_EXPR. Handle packed fields. (build_x_va_arg): Wrap it in a TARGET_EXPR. (build_over_call): Add sanity check. * cvt.c (early_elide_copy): New. (ocp_convert): Use it. * except.c (build_throw): Use it. * init.c (get_nsdmi): Put back the TARGET_EXPR. (expand_default_init): Call early_elide_copy. * typeck.c (cp_build_modify_expr): Call early_elide_copy. 2016-10-06 Jakub Jelinek Implement P0258R2 - helper for C++17 std::has_unique_object_representations trait * cp-tree.h (enum cp_trait_kind): Add CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS. (struct lang_type_class): Add unique_obj_representations and unique_obj_representations_set bitfields. (CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS, CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS_SET): Define. (type_has_unique_obj_representations): Declare. * parser.c (cp_parser_primary_expression): Handle RID_HAS_UNIQUE_OBJ_REPRESENTATIONS. (cp_parser_trait_expr): Likewise. Formatting fix. * semantics.c (trait_expr_value, finish_trait_expr): Handle CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS. * tree.c (type_has_unique_obj_representations): New function. (record_has_unique_obj_representations): New function. * cxx-pretty-print.c (pp_cxx_trait_expression): Handle CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS. 2016-10-05 Jason Merrill Implement P0135R1, Guaranteed copy elision. * cvt.c (ocp_convert): Don't re-copy a TARGET_EXPR in C++17. PR c++/54293 * call.c (reference_binding): Fix binding to member of temporary. * call.c (extend_ref_init_temps): Fix TARGET_EXPR handling. * parser.c (cp_parser_skip_to_end_of_statement): Add missing break. * semantics.c (finish_compound_literal): Handle class placeholder. 2016-10-05 Marek Polacek Implement P0305R1, Selection statements with initializer. * cp-array-notation.c (create_an_loop): Call finish_init_stmt instead of finish_for_init_stmt. * cp-tree.h (finish_for_init_stmt): Rename to finish_init_stmt. * decl.c (poplevel): Adjust a comment. * init.c (build_vec_init): Call finish_init_stmt instead of finish_for_init_stmt. * name-lookup.c (pushdecl_maybe_friend_1): Adjust a comment. * name-lookup.h (enum scope_kind): Likewise. * parser.c (cp_parser_statement): Update commentary. (cp_parser_init_statement_p): New function. (cp_parser_selection_statement): Parse the optional init-statement. (cp_parser_for): Call finish_init_stmt instead of finish_for_init_stmt. (cp_parser_c_for): Likewise. (cp_convert_range_for): Call finish_init_stmt instead of finish_for_init_stmt. (cp_parser_range_for_member_function): Update commentary. (cp_parser_iteration_statement): (cp_parser_for_init_statement): Rename to cp_parser_init_statement. * pt.c (tsubst_omp_for_iterator): Update commentary. (tsubst_expr): Call finish_init_stmt instead of finish_for_init_stmt. * semantics.c (finish_for_init_stmt): Rename to finish_init_stmt. Update commentary. 2016-10-04 Jason Merrill PR c++/77852 * pt.c (do_class_deduction): Handle list-initialization. (do_auto_deduction): Call it sooner. (build_deduction_guide): Use tsubst_arg_types. (rewrite_template_parm): Don't copy_type. PR c++/77775 * constexpr.c (cxx_eval_component_reference): Use name matching for PMFs. Implement P0091R2, Template argument deduction for class templates. * parser.c (cp_parser_simple_type_specifier): Parse class placeholder. Use the location of the beginning of the type-specifier. (cp_parser_init_declarator): Parse deduction guide. (cp_parser_diagnose_invalid_type_name): Mention class deduction. (cp_parser_type_id_1): Don't accept class placeholder as template arg. * cp-tree.h (CLASS_PLACEHOLDER_TEMPLATE): New. * decl.c (grokdeclarator): Check for uninitialized auto here. (start_decl_1): Not here. (cp_finish_decl): Or here. Don't collapse a list when doing class deduction. (grokfndecl): Check deduction guide scope and body. * error.c (dump_decl, dump_function_decl, dump_function_name): Handle deduction guides. * pt.c (make_template_placeholder, do_class_deduction): New. (build_deduction_guide, rewrite_template_parm): New. (dguide_name, dguide_name_p, deduction_guide_p): New. (do_auto_deduction): Call do_class_deduction. (splice_late_return_type, is_auto): Handle class placeholders. (template_parms_level_to_args): Split from template_parms_to_args. (tsubst_template_parms_level): Split from tsubst_template_parms. * typeck2.c (build_functional_cast): Handle class placeholder. 2016-10-04 Martin Sebor PR c++/77804 * init.c (warn_placement_new_too_small): Avoid assuming an array type has a constant size. 2016-10-04 Jakub Jelinek PR c++/77791 * parser.c (cp_parser_lambda_declarator_opt): Only pedwarn for C++11 on decls in the param_list. Test cxx_dialect < cxx14 before the loop just once. * cp-tree.h (enum cp_tree_index): Remove CPTI_JAVA_*, CPTI_LANG_NAME_JAVA and CPTI_JCLASS. (java_byte_type_node, java_short_type_node, java_int_type_node, java_long_type_node, java_float_type_node, java_double_type_node, java_char_type_node, java_boolean_type_node, lang_name_java, jclass_node): Remove. (enum languages): Remove lang_java. (TYPE_FOR_JAVA): Remove. (struct lang_type_class): Remove java_interface bit-field. (TYPE_JAVA_INTERFACE): Remove. (pragma_java_exceptions): Remove. (check_java_method, build_java_class_ref): Remove prototypes. * name-lookup.c (pushtag_1): Don't set TYPE_FOR_JAVA. * decl2.c (acceptable_java_type, check_java_method): Remove. (import_export_decl): Remove TYPE_FOR_JAVA handling. (build_java_method_aliases): Remove. (c_parse_final_cleanups): Don't call build_java_method_aliases. (possibly_inlined_p): Don't test pragma_java_exceptions. * init.c (build_new_1): Remove TYPE_FOR_JAVA handling. (build_java_class_ref): Remove. * pt.c (maybe_new_partial_specialization, lookup_template_class_1, instantiate_class_template_1): Don't copy TYPE_FOR_JAVA. * except.c (eh_type_info): Remove java type handling. (decl_is_java_type, choose_personality_routine): Remove. (initialize_handler_parm): Don't call choose_personality_routine. (expand_start_catch_block): Don't handle java types. (build_throw): Likewise. * cp-lang.c (cp_eh_personality): Don't handle pragma_java_exceptions. * typeck.c (structural_comptypes): Don't compare TYPE_FOR_JAVA. * call.c (build_over_call): Don't handle TYPE_JAVA_INTERFACE. (java_iface_lookup_fn): Remove. (build_java_interface_fn_ref): Remove. * tree.c (cxx_attribute_table): Remove java_interface. (handle_java_interface_attribute): Remove. * lex.c (pragma_java_exceptions): Remove. (init_cp_pragma): Don't register GCC java_exceptions pragma. (handle_pragma_java_exceptions): Remove. (retrofit_lang_decl): Don't handle lang_name_java. * method.c (implicitly_declare_fn): Don't handle TYPE_FOR_JAVA. * error.c (language_to_string): Don't handle lang_java. * decl.c (record_builtin_java_type): Remove. (initialize_predefined_identifiers): Remove Java. (cxx_init_decl_processing): Remove java_*_type_node. (cp_finish_decl): Don't handle TYPE_FOR_JAVA. (grokfndecl): Likewise. (check_special_function_return_type): Likewise. (grokdeclarator): Don't set TYPE_FOR_JAVA. (grokparms): Don't handle TYPE_FOR_JAVA. (xref_basetypes): Likewise. (check_function_type): Likewise. (finish_constructor_body): Likewise. * mangle.c (write_builtin_type): Don't handle TYPE_FOR_JAVA and java_*_type_node. (write_bare_function_type): Don't handle TYPE_FOR_JAVA. (write_java_integer_type_codes): Remove. * class.c (add_method): Don't handle TYPE_FOR_JAVA. (add_implicitly_declared_members, determine_key_method, finish_struct_1): Likewise. (push_lang_context): Don't handle lang_name_java. 2016-10-03 Marek Polacek Core 903 * typeck.c (cp_build_binary_op): Pass original operands to null_ptr_cst_p, not those after the default conversions. 2016-10-03 Bernd Edlinger * parser.c (cp_parser_condition): Fix a warning. 2016-09-29 Jakub Jelinek Implement P0001R1 - C++17 removal of register storage class specifier * decl.c (cp_finish_decl): Diagnose register storage class on vars except when used in GNU global or local register variable extension. (grokdeclarator): Diagnose register storage class on parameters. * except.c (expand_start_catch_block): Set DECL_REGISTER only after cp_finish_decl call. 2016-09-29 Marek Polacek * rtti.c (involves_incomplete_p): Add fall through comment. 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 Implement P0018R3, C++17 lambda capture of *this by value as [=,*this] * parser.c (cp_parser_lambda_introducer): Formatting fix. Pass true instead of false as by_reference_p to add_capture for 'this'. Parse '*this' simple-capture. * lambda.c (build_capture_proxy): Handle '*this' capture by value. (add_capture): Adjust function comment. For id == this_identifier, treat by_reference_p as capturing '*this' by reference, i.e. 'this' by value, and !by_reference_p as capturing '*this' by value. (add_default_capture): For implicit 'this' capture, always pass by_reference_p true rather than false. 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. 2016-09-26 Nathan Sidwell * init.c (expand_default_init): Fix } indentation. * method.c (process_subob_fn): Simplify control structure to remove gotos. (implicitly_declare_fn): Remove duplicated lambda ctor check. 2016-09-26 Marek Polacek PR c/7652 * parser.c (cp_parser_storage_class_specifier_opt): Add gcc_fallthrough. (cp_parser_skip_to_end_of_template_parameter_list): Likewise. (cp_parser_cache_defarg): Likewise. (cp_parser_omp_for_cond): Likewise. * semantics.c (finish_decltype_type): Likewise. * typeck.c (structural_comptypes): Likewise. (cp_build_binary_op): Likewise. (cp_build_modify_expr): Likewise. 2016-09-26 Marek Polacek PR c/7652 * constexpr.c (cxx_eval_internal_function): Handle IFN_FALLTHROUGH. (potential_constant_expression_1): Likewise. * constraint.cc (function_concept_check_p): Check fn for null. * parser.c (cp_parser_expression_statement): Handle attribute fallthrough. (cp_parser_statement): Likewise. (cp_parser_label_for_labeled_statement): Set FALLTHROUGH_LABEL_P on labels. (cp_parser_std_attribute): Handle fallthrough attribute. (cp_parser_check_std_attribute): Add %< %> quotes. * pt.c (tsubst_copy_and_build): Handle internal functions. (instantiation_dependent_scope_ref_p): Return if the expression is null. 2016-09-24 Marek Polacek PR c/77490 * typeck.c (cp_build_unary_op): Warn about bit not on expressions that have boolean value. 2016-09-23 Jakub Jelinek Implement P0138R2, C++17 construction rules for enum class values * cp-tree.h (is_direct_enum_init): Declare. * decl.c (is_direct_enum_init): New function. (reshape_init): Use it. * typeck.c (convert_for_assignment): Likewise. * Make-lang.in (check-c++1z): Pass RUNTESTFLAGS down to make check-g++. * constexpr.c (call_stack): Remove unnecessary = vNULL initialization of file scope vec. * name-lookup.c (store_bindings, store_class_bindings): Don't initialize static local bindings_need_stored to vNULL. * typeck2.c (process_init_constructor_record): Use CONSTRUCTOR_NELTS (...) instead of vec_safe_length (CONSTRUCTOR_ELTS (...)). * decl.c (reshape_init_r): Likewise. (check_initializer): Likewise. 2016-09-22 Paolo Carlini PR c++/71979 * class.c (build_base_path): Allow for lookup_base returning NULL_TREE. 2016-09-21 Jason Merrill Core 903 * call.c (null_ptr_cst_p): Check char_type_p. 2016-09-21 Jakub Jelinek PR c++/77651 * init.c (build_new_1): Don't suggest to use -faligned-new if aligned_new_threshold is non-zero. (type_has_new_extended_alignment): Change aligned_new_threshhold to aligned_new_threshold. * call.c (second_parm_is_size_t, aligned_allocation_fn_p, aligned_deallocation_fn_p, build_op_delete_call): Likewise. * decl.c (cxx_init_decl_processing): Likewise. 2016-09-20 Jakub Jelinek PR c++/77626 * constexpr.c (cxx_fold_indirect_ref): Don't call byte_position on FIELD_DECLs with error_mark_node type. Remove useless break; after return. 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. 2016-09-19 Bernd Edlinger PR c++/77434 * cvt.c (cp_convert_and_check): Suppress Wint-in-bool-context here. 2016-09-16 Patrick Palka PR c++/77639 * parser.c (cp_parser_class_head): When processing_template_parmlist, don't assume that the class-head may start an explicit specialization. 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++/77338 * constexpr.c (cxx_eval_constant_expression) : Only call is_really_empty_class on complete types. PR c++/77375 * class.c (check_bases): Set CLASSTYPE_HAS_MUTABLE if any TYPE_HAS_MUTABLE_P for any bases. 2016-09-16 Jason Merrill * class.c (check_bases, set_one_vmethod_tm_attributes): Use least_bit_hwi. * decl.c (cxx_init_decl_processing): Use pow2p_hwi. * parser.c (cp_parser_cilk_simd_vectorlength): Use pow2p_hwi. 2016-09-14 Jakub Jelinek PR c++/77549 * name-lookup.c (consider_binding_level): Look through TREE_LIST and OVERLOAD. 2016-09-14 Marek Polacek * typeck.c (cp_build_unary_op): Diagnose incrementing boolean expressions. Tweak an error message. 2016-09-14 Marek Polacek * cp-tree.h (cp_build_unary_op): Change nonconvert parameter type to bool. * decl2.c (one_static_initialization_or_destruction): Use true instead of 1. * init.c (build_vec_init): Use false instead of 0. * pt.c (tsubst_copy_and_build): Likewise. * semantics.c (simplify_loop_decl_cond): Likewise. * typeck.c (rationalize_conditional_expr): Likewise. (cp_build_binary_op): Use true instead of 1. (cp_build_unary_op): Change nonconvert parameter type to bool. Use true instead of 1. (build_unary_op): Change nonconvert parameter type to bool. (unary_complex_lvalue): Use false instead of 0. 2016-09-13 Jakub Jelinek Implement P0028R4, C++17 using attribute namespaces without repetition * parser.c (cp_parser_std_attribute): Add ATTR_NS argument. Diagnose non-NULL ATTR_NS with scoped attribute token. Handle non-NULL ATTR_NS with non-scoped attribute tokens. Allow named ops in identifier after ::. (cp_parser_std_attribute_list): Add ATTR_NS argument, pass it down to cp_parser_std_attribute calls. (cp_parser_std_attribute_spec): Parse optional C++17 attribute-using-prefix, adjust grammar in function comment. 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. 2016-09-13 David Malcolm * parser.c (cp_parser_class_specifier_1): Update for renaming of add_fixit_insert to add_fixit_insert_before. (cp_parser_class_head): Likewise. 2016-09-12 Bernd Edlinger PR c++/77496 * call.c (build_conditional_expr_1): Call warn_for_omitted_condop. * class.c (instantiate_type): Look through the SAVE_EXPR. 2016-09-09 Jason Merrill Implement P0035R4, C++17 new of over-aligned types. * cp-tree.h (enum cp_tree_index): Add CPTI_ALIGN_TYPE. (align_type_node): New macro. * call.c (build_operator_new_call): Handle C++17 aligned new. (second_parm_is_size_t, build_op_delete_call): Likewise. (non_placement_deallocation_fn_p): Likewise. Rename to usual_deallocation_fn_p. (aligned_allocation_fn_p, aligned_deallocation_fn_p): New. * decl.c (cxx_init_decl_processing): Add aligned new support. * init.c (type_has_new_extended_alignment): New. (build_new_1): Handle aligned new. * tree.c (vec_copy_and_insert): New. 2016-09-02 Jakub Jelinek PR sanitizer/77396 * decl2.c (do_static_initialization_or_destruction): Only call asan_dynamic_init_call if INITP is true. 2016-09-01 Martin Sebor * mangle.c: Increase buffer size to guarantee it fits the output of the formatted function regardless of its arguments. 2016-09-01 Marek Polacek PR c/7652 * error.c (dump_type): Fix falls through comment. (dump_decl): Likewise. (dump_expr): Likewise. 2016-08-30 David Malcolm * parser.c (cp_parser_enclosed_template_argument_list): Add fix-it hint to ">>" within nested template argument list error. 2016-08-30 David Malcolm * name-lookup.c (suggest_alternatives_for): Use add_fixit_replace rather than add_fixit_misspelled_id. * parser.c (cp_parser_diagnose_invalid_type_name): Likewise. 2016-08-29 Jason Merrill PR c++/77379 * mangle.c (maybe_check_abi_tags): Add version parm, handle thunks. (mangle_thunk): Add thunk parameter. * method.c (finish_thunk): Pass it. * cp-tree.h: Declare it. 2016-08-15 Jason Merrill Avoid calling a trivial default constructor. * class.c (default_ctor_p): New. (in_class_defaulted_default_constructor): Use it. (type_has_non_user_provided_default_constructor): Use it. * call.c (build_over_call): Handle trivial default constructor. * cp-tree.h: Declare default_ctor_p. PR c++/57728 * pt.c (do_type_instantiation): Don't mess with non-user-provided member functions. 2016-08-25 Marek Polacek * parser.c (cp_parser_binary_expression): Pass LHS to warn_logical_not_parentheses. 2016-08-18 Marek Polacek PR c/7652 * call.c (add_builtin_candidate): Add gcc_fallthrough. * cxx-pretty-print.c (pp_cxx_unqualified_id): Likewise. * parser.c (cp_parser_skip_to_end_of_statement): Likewise. (cp_parser_cache_defarg): Likewise. 2016-08-12 Marek Polacek PR c/7652 * call.c (add_builtin_candidate): Add FALLTHRU. (build_integral_nontype_arg_conv): Adjust fall through comment. (build_new_op_1): Add FALLTHRU. (convert_like_real): Adjust fall through comment. * class.c (fixed_type_or_null): Likewise. * constexpr.c (cxx_eval_constant_expression): Likewise. (potential_constant_expression_1): Likewise. Add FALLTHRU. * cp-gimplify.c (cp_gimplify_expr): Adjust fall through comment. (cp_fold): Add FALLTHRU. * cvt.c (build_expr_type_conversion): Adjust fall through comment. * cxx-pretty-print.c (pp_cxx_unqualified_id): Add FALLTHRU. (pp_cxx_qualified_id): Likewise. (cxx_pretty_printer::constant): Adjust fall through comment. (cxx_pretty_printer::primary_expression): Add FALLTHRU. (pp_cxx_pm_expression): Adjust fall through comment. (cxx_pretty_printer::expression): Add FALLTHRU. (cxx_pretty_printer::declaration_specifiers): Reformat code. (pp_cxx_type_specifier_seq): Adjust fall through comment. (pp_cxx_ptr_operator): Likewise. Add FALLTHRU. * error.c (dump_type): Adjust fall through comment. (dump_decl): Likewise. * mangle.c (write_type): Likewise. * method.c (synthesized_method_walk): Add FALLTHRU. * name-lookup.c (arg_assoc_type): Likewise. * parser.c (cp_lexer_print_token): Adjust fall through comment. (cp_parser_primary_expression): Add FALLTHRU. (cp_parser_operator): Likewise. * pt.c (find_parameter_packs_r): Likewise. (tsubst_aggr_type): Adjust fall through comment. * semantics.c (finish_omp_clauses): Add FALLTHRU. * tree.c (lvalue_kind): Likewise. 2016-08-12 Alexandre Oliva PR debug/63240 * cp-objcp-common.c (cp_function_decl_defaulted): New. (cp_function_decl_explicit_p): Const_tree-ify. (cp_function_decl_deleted_p): Likewise. * cp-objcp-common.h (cp_function_decl_defaulted): Declare. (cp_function_decl_explicit_p): Const_tree-ify. (cp_function_decl_deleted_p): Likewise. (LANG_HOOKS_FUNCTION_DECL_DEFAULTED): Redefine. 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. 2016-08-10 Jason Merrill Implement C++17 constexpr if. * cp-tree.h (IF_STMT_CONSTEXPR_P): New. * name-lookup.c (push_to_top_level, pop_from_top_level_1): Handle it. * parser.h (struct cp_parser): Add in_discarded_stmt field. * parser.c (cp_parser_selection_statement): Handle 'if constexpr'. (cp_parser_jump_statement): Avoid deducing from a discarded return. * pt.c (tsubst_expr): Only instantiate taken branch of constexpr if. * semantics.c (begin_if_stmt): Set the binding level this_entity. (finish_if_stmt_cond): Require the condition of a constexpr if to be constant. * decl.c (level_for_constexpr_if): New. (named_label_entry): Add in_constexpr_if field. (poplevel_named_label_1): Set it. (check_goto): Check it. (check_previous_goto_1): Check level_for_constexpr_if. 2016-08-09 Jason Merrill PR c++/68703 * decl2.c (any_dependent_type_attributes_p): New. * pt.c (dependent_type_p_r, type_dependent_expression_p): Check it. * semantics.c (finish_id_expression): Check it. * typeck.c (finish_class_member_access_expr): Check it. PR c++/71712 * class.c (check_abi_tags): Don't duplicate tags for conversion ops. Adjust mangling of ABI tags on class template member functions. * class.c (missing_abi_tags): New. (check_abi_tags): Don't check template. Add just_checking mode. * mangle.c (abi_flag_at_least, any_abi_below, equal_abi_tags): New. (sorted_abi_tags): Split out from write_abi_tags. (struct releasing_vec): New. (write_unqualified_name): Only look for the primary template for types. Implement backward compatibility. PR c++/72849 * constexpr.c (cxx_eval_constant_expression): Check COMPLETE_TYPE_P before calling is_really_empty_class. * class.c (is_really_empty_class): Don't call complete_type. PR c++/56701 * typeck.c (cp_build_addr_expr_1): Remove special *this handling. 2016-08-09 Jakub Jelinek PR c++/72809 * rtti.c (get_pseudo_ti_index): Return TK_CLASS_TYPE for builtin aggregate types without TYPE_BINFO. 2016-08-08 Jason Merrill Implement C++17 constexpr lambda. * class.c (finalize_literal_type_property): Handle lambdas. * constexpr.c (is_valid_constexpr_fn): Likewise. No longer static. (explain_invalid_constexpr_fn, cxx_eval_call_expression): Handle lambdas. (cxx_eval_constant_expression): Handle capture proxy. (var_in_constexpr_fn): Don't check for C++14. (var_in_maybe_constexpr_fn): New. (potential_constant_expression_1): Use it. Check DECL_EXPR for declarations not allowed in constexpr function. Handle STATIC_ASSERT, RANGE_FOR_STMT. * decl.c (make_rtl_for_nonlocal_decl): Use var_in_maybe_constexpr_fn. (finish_function): Set DECL_DECLARED_CONSTEXPR_P on lambda members. * lambda.c (begin_lambda_type): Set CLASSTYPE_LITERAL_P. (maybe_add_lambda_conv_op): Clear thunk CALL_EXPR location. (lambda_static_thunk_p): New. * parser.c (cp_keyword_starts_decl_specifier_p): Add RID_CONSTEXPR. (CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR): New enumerator. (cp_parser_decl_specifier_seq): Handle it. (cp_parser_lambda_declarator_opt): Use cp_parser_decl_specifier_seq. * pt.c (instantiate_class_template_1): Set CLASSTYPE_LITERAL_P. (tsubst_copy_and_build) [CALL_EXPR]: Propagate CALL_FROM_THUNK_P. * error.c (dump_function_decl): Check TFF_NO_TEMPLATE_BINDINGS. (dump_expr) [FUNCTION_DECL]: Pass it. 2016-08-08 Jason Merrill PR c++/67131 * class.c (is_really_empty_class): Call complete_type. * constexpr.c (cxx_eval_constant_expression): Check is_really_empty_class. (potential_constant_expression_1): Likewise. Check for error type. 2016-08-08 Jakub Jelinek PR c++/58706 * parser.c: Include tree-iterator.h. (cp_parser_omp_for_loop_init): Move lambda DECL_EXPRs from init to FOR_BLOCK. (cp_parser_omp_for_loop): Handle non-STATEMENT_LIST FOR_BLOCK entries. 2016-08-06 Jonathan Wakely * call.c (convert_like_real): Harmonize diagnostics for invalid reference binding. 2016-08-05 Martin Sebor * constexpr.c (cxx_eval_store_expression): Remove hyphen from the spelling of "constant-expression" in diagnostic messages for consistency. (cxx_eval_constant_expression): Same. (cxx_eval_outermost_constant_expr): Same. (potential_constant_expression_1): Same. 2016-08-05 Nathan Sidwell PR c++/68724 * pt.c (unify): TRAIT_EXPR is an expr. 2016-08-04 Paolo Carlini PR c++/72800 * lambda.c (add_capture): Check lambda_capture_field_type return value for error_mark_node. 2016-08-04 Patrick Palka PR c++/72759 * pt.c (tsubst_qualified_id): Return error_mark_node if template_args is error_mark_node. 2016-08-04 Jason Merrill PR c++/72415 * pt.c (tsubst_pack_expansion): Pull a single pack expansion out of the TREE_VEC. * cp-tree.h (TYPE_UNNAMED_P): Rename from TYPE_ANONYMOUS_P. (TYPE_WAS_UNNAMED): Rename from TYPE_WAS_ANONYMOUS. * class.c, decl.c, decl2.c, error.c, lambda.c, mangle.c, name-lookup.c, parser.c, pt.c, semantics.c, tree.c: Adjust. PR c++/72796 * typeck.c (finish_class_member_access_expr): Avoid stripping SCOPE_REF to dependent base. 2016-08-04 Thomas Schwinge * parser.c (cp_ensure_no_oacc_routine): Improve diagnostics. (cp_parser_late_parsing_cilk_simd_fn_info): Fix diagnostics. (cp_parser_late_parsing_oacc_routine, cp_finalize_oacc_routine): Simplify code, and improve diagnostics. (cp_parser_oacc_routine): Likewise. Move pragma context checking... (cp_parser_pragma): ... here. * parser.h (struct cp_omp_declare_simd_data): New. (struct cp_parser): Use it for oacc_routine member. * parser.c (cp_ensure_no_oacc_routine, cp_parser_oacc_routine) (cp_parser_late_parsing_oacc_routine, cp_finalize_oacc_routine): Use it. Simplify code. (cp_parser_new): Initialize all members pointing to special parsing data structures. (cp_parser_cilk_simd_fn_vector_attrs): Initialize parser->cilk_simd_fn_info->clauses. (cp_parser_omp_declare_simd): Initialize parser->omp_declare_simd->clauses. (cp_parser_late_parsing_omp_declare_simd): Simplify code. 2016-08-04 Marek Polacek PR c++/70229 * constexpr.c (check_constexpr_ctor_body_1): Allow typedef declarations. 2016-08-01 Jason Merrill * mangle.c (mangle_decl): Warn about mangled name change even if DECL_REALLY_EXTERN. * mangle.c (get_abi_tags): New. (find_substitution, write_unqualified_name, write_abi_tags) (maybe_check_abi_tags): Use it. * mangle.c (mangle_decl): Fix mangled name change warning. PR c++/72766 * constexpr.c (cxx_eval_pointer_plus_expression): Check constancy of nelts. * cp-gimplify.c (cp_fully_fold): Only maybe_constant_value in C++11 and up. 2016-07-30 Martin Sebor PR c++/60760 PR c++/71091 * constexpr.c (cxx_eval_binary_expression): Reject invalid expressions involving null pointers. (cxx_eval_component_reference): Reject null pointer dereferences. (cxx_eval_indirect_ref): Reject indirecting through null pointers. (cxx_eval_constant_expression): Reject invalid expressions involving null pointers. 2016-07-29 Marek Polacek PR c/71926 * semantics.c (maybe_convert_cond): Use the location of COND for the parentheses warning. 2016-07-29 Jason Merrill * decl.c (build_enumerator): Tweak diagnostic. 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. 2016-07-28 Paolo Carlini PR c++/71665 * decl.c (build_enumerator): Check the type of the enumerator before calling cxx_constant_value. 2016-07-27 Jason Merrill PR c++/71747 * pt.c (get_partial_spec_bindings): Replace tparms and spec_args parameters with spec_tmpl. Call push_tinst_level. (most_specialized_partial_spec): Adjust. (more_specialized_partial_spec): Adjust. 2016-07-25 Jason Merrill PR c++/65970 * cp-gimplify.c (genericize_cp_loop): Revert location change. PR c++/71837 * lambda.c (add_capture): Leave a pack expansion in a TREE_LIST. (build_lambda_object): Call build_x_compound_expr_from_list. * pt.c (tsubst) [DECLTYPE_TYPE]: Likewise. PR c++/71833 PR c++/54440 * pt.c (coerce_template_parameter_pack): Fix logic for pack index. PR c++/65970 * constexpr.c (cxx_eval_loop_expr): Count iterations. * cp-gimplify.c (genericize_cp_loop): Use start_locus even for infinite loops. PR c++/71972 * constexpr.c (cxx_eval_array_reference): Handle looking for the value of an element we're currently modifying. 2016-07-24 Jason Merrill PR c++/71515 * pt.c (resolve_typename_type): Try to avoid calling currently_open_class. 2016-07-23 Jason Merrill PR c++/66617 * call.c (add_list_candidates): Handle VTT parm. (build_new_method_call_1): Likewise. 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++/71576 * call.c (convert_like_real): Use lvalue_kind. 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++/71274 * decl2.c (maybe_instantiate_decl): Split out from mark_used. (decl_constant_var_p): Use it instead. 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. * call.c (build_over_call): Check unsafe_copy_elision_p even for trivial constructors. * method.c (do_build_copy_constructor): Don't copy tail padding even in a trivial constructor. 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 Richard Biener * vtable-class-hierarchy.c (vtv_generate_init_routine): Set DECL_IGNORED_P. 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 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++/65168 * typeck.c (cp_truthvalue_conversion): Compare pointers to nullptr. Don't set c_inhibit_evaluation_warnings. PR c++/71121 * cp-gimplify.c (cp_fully_fold): First call maybe_constant_value. 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. 2016-07-20 David Malcolm PR c/70339 PR c/71858 * name-lookup.c: Include gcc-rich-location.h, spellcheck-tree.h, and parser.h. (suggest_alternatives_for): If no candidates are found, try lookup_name_fuzzy and report if if finds a suggestion. (consider_binding_level): New function. (lookup_name_fuzzy) New function. * parser.c: Include gcc-rich-location.h. (cp_lexer_next_token_is_decl_specifier_keyword): Move most of logic into... (cp_keyword_starts_decl_specifier_p): ...this new function. (cp_parser_diagnose_invalid_type_name): When issuing "does not name a type" errors, attempt to make a suggestion using lookup_name_fuzzy. * parser.h (cp_keyword_starts_decl_specifier_p): New prototype. * search.c (lookup_field_fuzzy_info::fuzzy_lookup_field): Reject types that are not CLASS_TYPE_P, rather than rejecting individual tree codes. 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. PR c++/50060 * constexpr.c (cxx_eval_builtin_function_call): Pass false as lval when evaluating call arguments. Use fold_builtin_call_array instead of fold_build_call_array_loc, return t if it returns NULL. Otherwise check the result with potential_constant_expression and call cxx_eval_constant_expression on it. 2016-07-19 Jason Merrill PR c++/67164 * pt.c (iterative_hash_template_arg, template_args_equal): Don't handle ARGUMENT_PACK_SELECT. 2016-07-18 Jakub Jelinek PR c++/70869 PR c++/71054 * cp-gimplify.c (cp_genericize_r): Revert the 2016-07-07 change. * tree.c (cp_walk_subtrees): For DECL_EXPR on DECL_ARTIFICIAL non-static VAR_DECL, walk the decl's DECL_INITIAL, DECL_SIZE and DECL_SIZE_UNIT. 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++/71826 * pt.c (tsubst_baselink): Only set BASELINK_OPTYPE for BASELINK_P. 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. 2016-07-15 Jason Merrill PR c++/71495 * call.c (convert_like_real): Mask complain. * semantics.c (perform_koenig_lookup): Likewise. 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++/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. 2016-07-15 Cesar Philippidis * parser.c (cp_parser_oacc_declare): Don't scan for GOMP_MAP_POINTER. * semantics.c (handle_omp_array_sections): Mark data clauses with GOMP_MAP_FORCE_{PRESENT,TO,FROM,TOFROM} as potentially having zero-length subarrays. 2016-07-11 Jason Merrill * decl.c (store_parm_decls): Remove check for void parm. 2016-07-08 Jason Merrill * cp-tree.h: Unpoison lvalue_p. * call.c, class.c, constexpr.c, cvt.c, init.c, lambda.c, pt.c, tree.c, typeck.c, typeck2.c: Use lvalue_p instead of real_lvalue_p. * tree.c (obvalue_p): Rename from lvalue_p. (lvalue_p): Define for c-common. * call.c, cp-tree.h, cvt.c, init.c: Adjust. * typeck.c: Adjust. (cp_build_addr_expr_1): Remove obsolete code. * tree.c (glvalue_p): Rename from lvalue_or_rvalue_with_address_p. * call.c, cp-tree.h, typeck.c: Adjust. * lambda.c (maybe_add_lambda_conv_op): Fix null object argument. P0145R2: Refining Expression Order for C++. * cp-gimplify.c (lvalue_has_side_effects): New. (cp_gimplify_expr): Implement assignment ordering. * call.c (op_is_ordered, build_over_call): Adjust for -fargs-in-order renaming to -fstrong-eval-order. * cp-gimplify.c (cp_gimplify_expr): Likewise. 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. 2016-07-05 David Malcolm PR c++/62314 * parser.c (cp_parser_class_specifier_1): When reporting missing semicolons, use a fixit-hint to suggest insertion of a semicolon immediately after the closing brace, offsetting the reported column accordingly. 2016-07-04 Jan Beulich * lang-specs.h ("@c++-header"): Conditionalize "-o". 2016-06-29 Thomas Schwinge * parser.c (cp_parser_pragma) : Move pragma context checking into... (cp_parser_omp_cancellation_point): ... here, and improve diagnostic messages. * semantics.c (finish_omp_cancel, finish_omp_cancellation_point): Improve diagnostic messages. 2016-06-28 Jakub Jelinek * Make-lang.in: Don't cat ../stage_current if it does not exist. 2016-06-24 Jason Merrill P0145R2: Refining Expression Order for C++. * typeck.c (cp_build_modify_expr): Leave COMPOUND_EXPR on LHS. * tree.c (get_target_expr_sfinae): Handle bit-fields. (build_target_expr): Call mark_rvalue_use. 2016-06-24 Jakub Jelinek * call.c (magic_varargs_p): Return 3 for __builtin_*_overflow_p. (build_over_call): For magic == 3, do no conversion only on 3rd argument. 2016-06-23 Andi Kleen * Make-lang.in: Add support for autofdo. 2016-06-21 Jason Merrill * constraint.cc (constraints_satisfied_p): Keep as many levels of args as our template has levels of parms. * pt.c (template_parm_outer_level, uses_outer_template_parms): New. (type_dependent_expression_p): Use uses_outer_template_parms. 2016-06-20 David Malcolm * parser.c (cp_parser_string_literal): Convert non-standard concatenation error to directly use a rich_location, and use that to add the location of the first literal to the diagnostic. 2016-06-17 Paolo Carlini * decl.c (validate_constexpr_redeclaration): Change pair of errors to error + inform. * error.c (dump_function_decl): Save the constexpr specifier too. 2016-06-17 Jakub Jelinek * tree.c (builtin_valid_in_constant_expr_p): Test for DECL_BUILT_IN_CLASS equal to BUILT_IN_NORMAL instead of just DECL_BUILT_IN. (bot_manip): Likewise. * call.c (magic_varargs_p): Likewise. 2016-06-17 Paolo Carlini * decl.c (grokfndecl): Change pair of errors to error + inform. 2016-06-17 Jason Merrill PR c++/71209 * typeck.c (finish_class_member_access_expr): Avoid "not a base" warning when there are dependent bases. 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. 2016-06-15 Paolo Carlini * decl.c (wrapup_globals_for_namespace): Use DECL_SOURCE_LOCATION and "%qF" in warning_at instead of "%q+F" in warning. (check_redeclaration_exception_specification): Likewise in pedwarn (and error, inform, for consistency). * call.c (joust): Likewise. 2016-06-15 Paolo Carlini PR c++/70202 * decl.c (xref_basetypes): Revert r117839 changes; add fix-up code at the end of the for loop; also revert r159637 changes, add back the gcc_assert. * cp-tree.h (xref_basetypes): Adjust declaration. * parser.c (cp_parser_class_head): Adjust xref_basetypes call. 2016-06-14 David Malcolm * search.c: Include spellcheck-tree.h rather than spellcheck.h. 2016-06-14 David Malcolm * typeck.c: Include "gcc-rich-location.h". (finish_class_member_access_expr): Simplify fixit code by using gcc_rich_location::add_fixit_misspelled_id. 2016-06-14 Jason Merrill P0145R2: Refining Expression Order for C++. * cp-tree.h (CALL_EXPR_OPERATOR_SYNTAX, CALL_EXPR_ORDERED_ARGS) (CALL_EXPR_REVERSE_ARGS): New. * call.c (build_new_op_1): Set them. (extract_call_expr, op_is_ordered): New. (build_over_call): Set CALL_EXPR_ORDERED_ARGS. * cp-gimplify.c (cp_gimplify_expr) [CALL_EXPR]: Handle new flags. * pt.c (tsubst_copy_and_build): Copy new flags. * semantics.c (simplify_aggr_init_expr): Likewise. * tree.c (build_aggr_init_expr): Likewise. (build_min_non_dep_op_overload): Likewise. 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. PR c++/71516 * decl.c (complete_vars): Handle gracefully type == error_mark_node. 2016-06-14 Paolo Carlini * typeck2.c (digest_init_r): Use EXPR_LOC_OR_LOC on init. 2016-06-13 Paolo Carlini * decl.c (grokdeclarator): Fix typo in pedwarn text. 2016-06-10 Thomas Schwinge PR c/71381 * parser.c (cp_parser_omp_var_list_no_open) : Loosen checking. 2016-06-09 Paolo Carlini PR c++/71465 Revert: 2016-06-04 Paolo Carlini PR c++/70202 * parser.c (cp_parser_class_head): When xref_basetypes fails and emits an error do not zero the type. 2016-06-08 Paolo Carlini * decl.c (maybe_deduce_size_from_array_init): Use DECL_SOURCE_LOCATION in error_at. (layout_var_decl): Likewise. (check_array_initializer): Likewise. (check_initializer): Likewise. (duplicate_decls, check_elaborated_type_specifier): Tidy. 2016-06-08 Martin Sebor Jakub Jelinek PR c++/70507 PR c/68120 * constexpr.c: Include gimple-fold.h. (cxx_eval_internal_function): New function. (cxx_eval_call_expression): Call it. (potential_constant_expression_1): Handle integer arithmetic overflow built-ins. * tree.c (builtin_valid_in_constant_expr_p): Handle BUILT_IN_{ADD,SUB,MUL}_OVERFLOW_P. 2016-06-08 Paolo Carlini * pt.c (tsubst, case TYPENAME_TYPE): Don't delay checking the return value of tsubst_aggr_type for error_mark_node. 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. 2016-06-04 Paolo Carlini PR c++/70202 * parser.c (cp_parser_class_head): When xref_basetypes fails and emits an error do not zero the type. 2016-06-03 Patrick Palka PR c++/27100 * decl.c (duplicate_decls): Properly copy the DECL_PENDING_INLINE_P, DECL_PENDING_INLINE_INFO and DECL_SAVED_FUNCTION_DATA fields from OLDDECL to NEWDECL. 2016-06-03 Chung-Lin Tang * semantics.c (finish_omp_clauses): Mark OpenACC reduction arguments as addressable when async clause exists. 2016-06-02 Jan Hubicka * cp-gimplify.c (genericize_continue_stmt): Force addition of predict stmt. 2016-06-02 Paolo Carlini * decl.c (xref_tag_1): Change pairs of errors to error + inform. (start_enum): Likewise. * parser.c (cp_parser_class_head): Likewise. 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. 2016-05-31 Jason Merrill * pt.c (instantiate_decl): Avoid recalculation. 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++/71227 * pt.c (check_explicit_specialization): Give better diagnostic about specializing a hidden friend. 2016-05-31 Paolo Carlini PR c++/71248 * decl.c (check_static_variable_definition): Use DECL_SOURCE_LOCATION to obtain correct locations; avoid redundant diagnostics on out-of-class definitions. 2016-05-30 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. 2016-05-30 Paolo Carlini PR c++/71238 * lex.c (unqualified_name_lookup_error): Take a location too. (unqualified_fn_lookup_error): Take a cp_expr. * cp-tree.h (unqualified_name_lookup_error, unqualified_fn_lookup_error): Adjust declarations. * semantics.c (perform_koenig_lookup): Adjust unqualified_fn_lookup_error call, pass the location of the identifier too as part of a cp_expr. 2016-05-30 Paolo Carlini PR c++/71099 * parser.c (cp_parser_function_specifier_opt): Use current_class_type to improve the diagnostic about wrong uses of 'virtual'. 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. 2016-05-28 Ville Voutilainen Revert: PR c++/69855 * name-lookup.c (pushdecl_maybe_friend_1): Push local function decls into the global scope after stripping template bits and setting DECL_ANTICIPATED. 2016-05-27 Paolo Carlini PR c++/60385 * name-lookup.c (push_namespace): Return bool, false when pushdecl fails. * name-lookup.h (push_namespace): Adjust declaration. * parser.c (cp_parser_namespace_definition): Check push_namespace return value. 2016-05-27 Ville Voutilainen PR c++/69855 * name-lookup.c (pushdecl_maybe_friend_1): Push local function decls into the global scope after stripping template bits and setting DECL_ANTICIPATED. 2016-05-26 Jakub Jelinek * semantics.c (finish_omp_clauses) : Warn if OMP_CLAUSE_SCHEDULE_CHUNK_EXPR is known not to be positive. 2016-05-26 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. 2016-05-25 Jason Merrill 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. 2016-05-24 Cesar Philippidis * parser.c (cp_parser_oacc_declare): Add support for GOMP_MAP_FIRSTPRIVATE_POINTER. * semantics.c (handle_omp_array_sections_1): Replace bool is_omp argument with enum c_omp_region_type ort. Don't privatize OpenACC non-static members. (handle_omp_array_sections): Replace bool is_omp argument with enum c_omp_region_type ort. Update call to handle_omp_array_sections_1. (finish_omp_clauses): Add specific errors and warning messages for OpenACC. Use firsrtprivate pointers for OpenACC subarrays. Update call to handle_omp_array_sections. 2016-05-24 Jason Merrill PR c++/70584 * cp-gimplify.c (cp_fold_maybe_rvalue): Loop in case cp_fold returns a decl. (cp_fold) [INDIRECT_REF]: Don't fold to an rvalue. 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. 2016-05-24 Richard Biener PR middle-end/70434 PR c/69504 * expr.c (mark_exp_read): Handle VIEW_CONVERT_EXPR. * constexpr.c (cxx_eval_array_reference): Handle indexed vectors. * typeck.c (cp_build_array_ref): Adjust. 2016-05-23 Jason Merrill PR c++/70344 * constexpr.c (cxx_eval_call_expression): Check for fun == current_function_decl again. PR c++/70584 * cp-gimplify.c (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. 2016-05-23 Paolo Carlini PR c++/70972 * method.c (forward_parm): Use cp_build_reference_type. 2016-05-23 Paolo Carlini PR c++/69095 * parser.c (cp_parser_initializer): Use check_for_bare_parameter_packs. 2016-05-23 Paolo Carlini * pt.c (check_for_bare_parameter_packs): Improve error message location for expressions. 2016-05-20 Nathan Sidwell * constexpr.c (cxx_bind_parameters_in_call): Avoid gratuitous if ... goto. (cxx_eval_call_expression): Fix comment grammar. 2016-05-20 Paolo Carlini PR c++/70572 * decl.c (cp_finish_decl): Check do_auto_deduction return value and return immediately in case of erroneous code. 2016-05-19 Marek Polacek PR c++/71075 * pt.c (unify_template_argument_mismatch): Use %qE instead of %qD. 2016-05-19 Jason Merrill PR c++/10200 * pt.c (fn_type_unification): Add outer template args if needed. (type_unification_real): Handle getting full args. 2016-05-19 David Malcolm 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 * decl.c (finish_enum_value_list): Use the specified mode. 2016-05-18 Jason Merrill * pt.c (value_dependent_expression_p): Tweak new cases to better match the wording in the standard. 2016-05-18 Paolo Carlini PR c++/69793 * parser.c (cp_parser_template_id): Don't call cp_lexer_peek_nth_token when the previous cp_lexer_peek_token returns CPP_EOF. 2016-05-18 Paolo Carlini PR c++/70466 * call.c (convert_like_real): Check that we are actually converting from an init list. 2016-05-16 Matthew Wahab * decl.c (grokdeclarator): Remove errmsg and use of targetm.invalid_return_type. (grokparms): Remove errmsg and use of targetm.invalid_parameter_type. 2016-05-13 Jason Merrill PR c++/10200 PR c++/69753 * pt.c (tsubst_decl): Use uses_template_parms. (instantiate_template_1): Handle non-dependent calls in templates. (value_dependent_expression_p): Handle BASELINK, FUNCTION_DECL. (type_dependent_expression_p): Only consider innermost template args. (dependent_template_arg_p): Check enclosing class of a template here. (dependent_template_p): Not here. (type_dependent_object_expression_p): New. * typeck.c (finish_class_member_access_expr): Use it. * parser.c (cp_parser_postfix_expression): Use it. (cp_parser_postfix_dot_deref_expression): Use it. Use comptypes to detect the current instantiation. (cp_parser_lookup_name): Really implement DR 141. * search.c (lookup_field_r): Prefer a dependent using-declaration. (any_dependent_bases_p): Split out from... * name-lookup.c (do_class_using_decl): ...here. * call.c (build_new_method_call_1): Use it. * semantics.c (finish_call_expr): 'this' doesn't make a call dependent. * tree.c (non_static_member_function_p): Remove. * typeck2.c (build_x_arrow): Use dependent_scope_p. * parser.c (cp_parser_postfix_dot_deref_expression): Use complete_type_or_else for unknown_type_node, too. 2016-05-12 Marek Polacek PR c/70756 * call.c (build_new_op_1): Pass LOC to cp_build_modify_expr. * cp-tree.h (cp_build_modify_expr): Update declaration. (cxx_incomplete_type_error, cxx_incomplete_type_diagnostic): New inline overloads. * cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs): Pass INPUT_LOCATION to cp_build_modify_expr. * decl2.c (set_guard): Likewise. (handle_tls_init): Likewise. * init.c (perform_member_init): Likewise. (expand_virtual_init): Likewise. (build_new_1): Likewise. (build_vec_delete_1): Likewise. (get_temp_regvar): Likewise. (build_vec_init): Likewise. * method.c (do_build_copy_assign): Likewise. (assignable_expr): Likewise. * semantics.c (finish_omp_for): Likewise. * typeck.c (cp_build_binary_op): Pass LOCATION to pointer_diff and cp_pointer_int_sum. (cp_pointer_int_sum): Add location parameter. Pass it down to pointer_int_sum. (pointer_diff): Add location parameter. Use it. (build_modify_expr): Pass location down to cp_build_modify_expr. (cp_build_modify_expr): Add location parameter. Use it. (build_x_modify_expr): Pass location down to cp_build_modify_expr. * typeck2.c (cxx_incomplete_type_diagnostic, cxx_incomplete_type_error): Add location parameter. 2016-05-11 Marek Polacek PR c++/71024 * decl.c (duplicate_decls): Call diagnose_mismatched_decls. 2016-05-05 Jakub Jelinek * parser.c (cp_parser_selection_statement): For RID_SWITCH, pass if_p instead of NULL to cp_parser_implicitly_scoped_statement. 2016-05-04 Marek Polacek * parser.c (cp_parser_selection_statement): Replace OPT_Wparentheses with OPT_Wdangling_else. 2016-05-03 Martin Sebor PR c++/66561 * tree.c (builtin_valid_in_constant_expr_p): Treat BUILT_IN_FILE, BUILT_IN_FUNCTION, and BUILT_IN_LINE as constant expressions. 2016-05-03 Marek Polacek PR c/70859 * call.c (build_cxx_call): Pass location and vNULL down to check_builtin_function_arguments. 2016-05-03 Richard Biener * Make-lang.in (cc1plus-checksum.c): For stage-final re-use the checksum from the previous stage. 2016-05-02 David Malcolm PR c++/62314 * typeck.c (finish_class_member_access_expr): When giving a hint about a possibly-misspelled member name, add a fix-it replacement hint. 2016-05-02 Cesar Philippidis * cp-tree.h (finish_omp_clauses): Update prototype. * parser.c (cp_parser_oacc_all_clauses): Update call to finish_omp_clauses. (cp_parser_omp_all_clauses): Likewise. (cp_parser_omp_for_loop): Likewise. (cp_omp_split_clauses): Likewise. (cp_parser_oacc_cache): Likewise. (cp_parser_oacc_loop): Likewise. (cp_parser_omp_declare_target): (cp_parser_cilk_simd_all_clauses): Likewise. (cp_parser_cilk_for): Likewise. * pt.c (tsubst_omp_clauses): Replace allow_fields and declare_simd arguments with enum c_omp_region_type ort. (tsubst_omp_clauses): Update calls to finish_omp_clauses. (tsubst_omp_attribute): Update calls to tsubst_omp_clauses. (tsubst_omp_for_iterator): Update calls to finish_omp_clauses. (tsubst_expr): Update calls to tsubst_omp_clauses. * semantics.c (finish_omp_clauses): Replace bool arguments allow_fields, declare_simd, and is_cilk with bitmask ort. (finish_omp_for): Update call to finish_omp_clauses. 2016-05-02 David Malcolm PR c++/62314 * parser.c (cp_parser_class_head): Capture the start location; use it to emit a fix-it insertion hint when complaining about missing "template <> " in explicit specializations. 2016-05-02 Richard Sandiford * init.c (build_new_1): Use shift operators instead of wi:: shifts. 2016-05-02 Richard Biener * decl.c (grokdeclarator): Properly insert a DECL_EXPR for anonymous VLAs. 2016-04-29 Paolo Carlini PR c++/66644 * class.c (check_field_decl): Remove final int* parameter, change the return type to bool; fix logic in order not to reject multiple initialized fields in anonymous struct. (check_field_decls): Adjust call. 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 Jason Merrill Implement C++17 [[nodiscard]] attribute. PR c++/38172 PR c++/54379 * parser.c (cp_parser_std_attribute): Handle [[nodiscard]]. * tree.c (handle_nodiscard_attribute): New. (cxx_attribute_table): Add [[nodiscard]]. * cvt.c (cp_get_fndecl_from_callee, cp_get_callee_fndecl): New. (maybe_warn_nodiscard): New. (convert_to_void): Call it. * cvt.c (cp_get_callee): New. * constexpr.c (get_function_named_in_call): Use it. * cxx-pretty-print.c (postfix_expression): Use it. * except.c (check_noexcept_r): Use it. * method.c (check_nontriv): Use it. * tree.c (build_aggr_init_expr): Use it. * cp-tree.h: Declare it. 2015-04-27 Ryan Burn Jeff Law PR c++/69024 PR c++/68997 * cp-gimplify.c (cp_gimplify_expr): Call cilk_cp_detect_spawn_and_unwrap instead of cilk_detect_spawn_and_unwrap. * cp-cilkplus.c (is_conversion_operator_function_decl_p): New. (find_spawn): New. (cilk_cp_detect_spawn_and_unwrap): New. * lambda.c: Include cp-cilkplus.h. * parser.c: Include cp-cilkplus.h. * cp-tree.h (cpp_validate_cilk_plus_loop): Move prototype into... * cp-cilkpus.h: New file. 2016-04-27 Nathan Sidwell * constexpr.c (get_fundef_copy): Use the original function for non-recursive evaluations. (save_fundef_copy): Always expect a slot to be available. 2016-04-27 Bernd Schmidt * parser.c (cp_parser_postfix_expression): Call warn_for_memset instead of warning directly here. 2016-04-26 Patrick Palka PR c++/70241 * decl.c (build_enumerator): Set current_access_specifier when declaring an enumerator belonging to an in-class enumeration. * parser.c (cp_parser_check_access_in_redecleration): Also consider in-class enumerations. 2016-04-26 Marek Polacek PR c++/70744 * call.c (build_conditional_expr_1): Call cp_stabilize_reference instead of stabilize_reference. (build_over_call): Likewise. * cp-tree.h (cp_stabilize_reference): Declare. * tree.c (cp_stabilize_reference): New function. * typeck.c (cp_build_unary_op): Call cp_stabilize_reference instead of stabilize_reference. (unary_complex_lvalue): Likewise. (cp_build_modify_expr): Likewise. 2016-04-26 Jakub Jelinek PR bootstrap/70704 * pt.c (build_non_dependent_expr): Use flag_checking > 1 instead of just flag_checking. 2016-04-25 Jason Merrill * tree.c (std_attribute_table): New. (init_tree): Register it. 2016-04-22 Jason Merrill * parser.c (cp_parser_perform_range_for_lookup): Decay the array. 2016-04-21 Patrick Palka * name-lookup.c (free_saved_scope): New free list of saved_scope structures. (push_to_top_level): Attempt to reuse a saved_scope struct from free_saved_scope instead of allocating a new one each time. (pop_from_top_level_1): Chain the now-unused saved_scope structure onto free_saved_scope. 2016-04-21 Paolo Carlini PR c++/70540 * semantics.c (process_outer_var_ref): Unconditionally return error_mark_node when mark_used returns false. 2016-04-21 Marek Polacek PR c++/70513 * parser.c (cp_parser_enum_specifier): Check and possibly error for extra qualification. 2016-04-20 Nathan Sidwell PR c++/55635 * init.c (build_vec_delete_1): Protect operator delete call in try finally. (build_delete): Likewise. * optimize.c (build_delete_destructor_body): Likewise. 2016-04-20 Ilya Verbin PR c++/69363 * cp-tree.h (finish_omp_clauses): Add new default argument. * parser.c (cp_parser_cilk_simd_all_clauses): Use finish_omp_clauses instead of c_finish_cilk_clauses. * semantics.c (finish_omp_clauses): Add new argument. Allow floating-point variables in the linear clause for Cilk Plus. 2016-04-20 Nathan Sidwell * semantics.c (finish_compound_lteral): Don't wrap VECTOR_TYPEs in a TARGET_EXPR. 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. DR 2137 * call.c (implicit_conversion): If we choose a copy constructor for list-initialization from the same type, the conversion is an exact match. * constexpr.c (breaks): Handle EXIT_EXPR. (cxx_eval_loop_expr): Handle COMPOUND_EXPR body. (cxx_eval_constant_expression): Handle EXIT_EXPR, improve handling of COMPOUND_EXPR. PR c++/68206 PR c++/68530 * constexpr.c (potential_constant_expression_1): Handle LOOP_EXPR and GOTO_EXPR. * pt.c (tsubst_expr): Remove shadowing declaration. (tsubst_pack_expansion): Add assert. * semantics.c (add_decl_expr): Use DECL_SOURCE_LOCATION. PR c++/70522 * name-lookup.c (qualified_lookup_using_namespace): Look through hidden names. 2016-04-18 Michael Matz * class.c (build_vtable): Use SET_DECL_ALIGN and SET_TYPE_ALIGN. (layout_class_type): Ditto. (build_base_field): Use SET_DECL_ALIGN. (fixup_attribute_variants): Use SET_TYPE_ALIGN. * decl.c (duplicate_decls): Use SET_DECL_ALIGN. (record_unknown_type): Use SET_TYPE_ALIGN. (cxx_init_decl_processing): Ditto. (copy_type_enum): Ditto. (grokfndecl): Use SET_DECL_ALIGN. (copy_type_enum): Use SET_TYPE_ALIGN. * pt.c (instantiate_class_template_1): Use SET_TYPE_ALIGN. (tsubst): Ditto. * tree.c (cp_build_qualified_type_real): Use SET_TYPE_ALIGN. * lambda.c (maybe_add_lambda_conv_op): Use SET_DECL_ALIGN. * method.c (implicitly_declare_fn): Use SET_DECL_ALIGN. * rtti.c (emit_tinfo_decl): Ditto. 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. 2016-04-16 Sandra Loosemore PR target/1078 * tree.c (cxx_attribute_table): Remove "com_interface" entry. (handle_com_interface_attribute): Delete. 2016-04-15 Jason Merrill PR c++/70685 * constexpr.c (get_fundef_copy): Handle null *slot. PR c++/70505 * pt.c (tsubst_baselink): Give the new TEMPLATE_ID_EXPR unknown_type_node, too. 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.