2018-12-27 Martin Liska PR c++/88263 * decl2.c (get_local_tls_init_fn): Add location_t argument and use it. (get_tls_init_fn): Call it with location of variable for which we'll need to create tls_init function. (handle_tls_init): Likewise. 2018-12-21 Jakub Jelinek PR c++/86524 PR c++/88446 * cp-tree.h (cp_fold_maybe_rvalue, cp_fold_rvalue): Declare. (fold_non_dependent_expr): Add manifestly_const_eval argument. * constexpr.c (cxx_eval_builtin_function_call): Evaluate __builtin_constant_p if ctx->manifestly_const_eval even in constexpr functions. Don't reuse dummy{1,2} vars between different arguments. Use cp_fold_rvalue instead of cp_fully_fold. Fix comment typo. (fold_non_dependent_expr): Add manifestly_const_eval argument, pass it through to cxx_eval_outermost_constant_expr and maybe_constant_value. * cp-gimplify.c (cp_fold_maybe_rvalue, cp_fold_rvalue): No longer static. * semantics.c (finish_static_assert): Call fold_non_dependent_expr with true as manifestly_const_eval. 2018-12-20 Marek Polacek PR c++/88196 - ICE with class non-type template parameter. * pt.c (convert_nontype_argument): If the expr is a PTRMEM_CST, also check if the type we're converting it to is TYPE_PTRMEM_P. 2018-12-20 H.J. Lu PR c/51628 * call.c (convert_for_arg_passing): Call warn_for_address_or_pointer_of_packed_member. * typeck.c (convert_for_assignment): Likewise. 2018-12-20 Jakub Jelinek PR c++/88180 * parser.c (cp_parser_class_specifier_1): If cp_parser_check_type_definition fails, skip default arguments, NSDMIs, etc. like for erroneous template args. * cp-tree.h (cp_fully_fold_init): Declare. * cp-gimplify.c (cp_fully_fold_init): New function. * typeck2.c (split_nonconstant_init, store_init_value): Use it instead of cp_fully_fold. 2018-12-19 Segher Boessenkool * parser.c (cp_parser_asm_definition): Do not allow any asm qualifiers on top-level asm. 2018-12-19 Segher Boessenkool * parser.c (cp_parser_asm_definition) : Give a more specific error message (instead of just falling through). 2018-12-19 Segher Boessenkool * parser.c (cp_parser_asm_definition): Rewrite the loop to work without "done" boolean variable. * parser.c (cp_parser_asm_definition): Keep track of the location each asm qualifier is first seen; use that to give nicer "duplicate asm qualifier" messages. 2018-12-19 Segher Boessenkool * parser.c (cp_parser_asm_definition): Rewrite the loop to work without "done" boolean variable. 2018-12-19 David Malcolm PR c++/88375 * typeck.c (convert_for_assignment): Capture location of rhs before stripping, and if available. Use the location when complaining about bad conversions, labelling it with the rhstype if the location was present. * typeck2.c (digest_init_r): Capture location of init before stripping. 2018-12-19 David Malcolm PR c++/87504 * call.c (op_error): Convert 1st param from location_t to const op_location_t &. Use binary_op_rich_location for binary ops. (build_conditional_expr_1): Convert 1st param from location_t to const op_location_t &. (build_conditional_expr): Likewise. (build_new_op_1): Likewise. (build_new_op): Likewise. * cp-tree.h (build_conditional_expr): Likewise. (build_new_op): Likewise. (build_x_binary_op): Likewise. (cp_build_binary_op): Likewise. * parser.c (cp_parser_primary_expression): Build a location for id-expression nodes. (cp_parser_binary_expression): Use an op_location_t when calling build_x_binary_op. (cp_parser_operator): Build a location for user-defined literals. * typeck.c (build_x_binary_op): Convert 1st param from location_t to const op_location_t &. (cp_build_binary_op): Likewise. Use binary_op_rich_location. 2018-12-19 David Malcolm PR c++/43064 PR c++/43486 * call.c (build_conditional_expr_1): Strip location wrappers when checking for CONST_DECL. (conversion_null_warnings): Use location of "expr" if available. * class.c (fixed_type_or_null): Handle location wrappers. * constexpr.c (potential_constant_expression_1): Likewise. * cvt.c (ignore_overflows): Strip location wrappers when checking for INTEGER_CST, and re-wrap the result if present. (ocp_convert): Call fold_for_warn before checking for INTEGER_CST. * decl.c (reshape_init_r): Strip any location wrapper. (undeduced_auto_decl): Likewise. * expr.c (mark_discarded_use): Likewise for expr. * init.c (build_aggr_init): Likewise before checking init for DECL_P. (warn_placement_new_too_small): Call fold_for_warn on adj before checking for CONSTANT_CLASS_P, and on nelts. Strip any location wrapper from op0 and on oper before checking for VAR_P. * parser.c (cp_parser_primary_expression): Call maybe_add_location_wrapper on numeric and string literals. (cp_parser_postfix_expression): Strip any location wrapper when checking for DECL_IS_BUILTIN_CONSTANT_P. (cp_parser_unary_expression): Ensure that folding of NEGATE_EXPR around a constant happens in the presence of location wrappers and returns a wrapped result. (cp_parser_has_attribute_expression): Strip any location wrapper from "oper". (cp_parser_binary_expression): Strip any location wrapper when checking for DECL_P on the lhs. (cp_parser_decltype): Strip any location wrapper from result of cp_parser_decltype_expr. (cp_parser_mem_initializer): Add location wrappers to the parenthesized expression list. (cp_parser_template_parameter_list): Don't create wrapper nodes within a template-parameter-list. (cp_parser_template_argument_list): Don't create wrapper nodes within a template-argument-list. (cp_parser_parameter_declaration): Strip location wrappers from default arguments. (cp_parser_gnu_attribute_list): Don't create wrapper nodes. (cp_parser_std_attribute_spec_seq): Likewise. (cp_parser_omp_all_clauses): Don't create wrapper nodes within OpenMP clauses. (cp_parser_omp_for_loop): Likewise. (cp_parser_omp_declare_reduction_exprs): Likewise. * pt.c (convert_nontype_argument_function): Strip location wrappers from fn_no_ptr before checking for FUNCTION_DECL. (tsubst_default_argument): Move note about which callsite led to instantiation to after the check_default_argument call. (do_auto_deduction): Likewise from init before checking for DECL_P. * semantics.c (force_paren_expr): Likewise from expr before checking for DECL_P. (finish_parenthesized_expr): Likewise from expr before checking for STRING_CST. (perform_koenig_lookup): Likewise from fn. (finish_call_expr): Likewise. (finish_id_expression): Rename to... (finish_id_expression_1): ...this, calling maybe_add_location_wrapper on the result. (capture_decltype): Use lookup_name_real rather than value_member when looking up decl within the capture-list. * tree.c (cp_stabilize_reference): Strip any location wrapper. (builtin_valid_in_constant_expr_p): Likewise. (strip_typedefs_expr): Strip any location wrapper before checking for decls or constants. (is_overloaded_fn): Likewise. (maybe_get_fns): Likewise. (selftest::test_lvalue_kind): Verify lvalue_p. * typeck.c (cxx_sizeof_expr): Strip any location wrapper. (cxx_alignof_expr): Likewise. (is_bitfield_expr_with_lowered_type): Handle location wrappers. (cp_build_array_ref): Call maybe_constant_value on "idx". (cp_build_binary_op): Strip location wrapper from first_arg before checking for PARM_DECL. Likewise for op1 before checking for INTEGER_CST in two places. Likewise for orig_op0 and orig_op1 when checking for STRING_CST. (cp_build_addr_expr_1): Likewise for arg when checking for FUNCTION_DECL. (cp_build_modify_expr): Likewise for newrhs when checking for STRING_CST. (convert_for_assignment): Don't strip location wrappers when stripping NON_LVALUE_EXPR. (maybe_warn_about_returning_address_of_local): Strip location wrapper from whats_returned before checking for DECL_P. (can_do_nrvo_p): Strip location wrapper from retval. (treat_lvalue_as_rvalue_p): Likewise. (check_return_expr): Likewise. * typeck2.c (cxx_incomplete_type_diagnostic): Strip location wrapper from value before checking for VAR_P or PARM_DECL. (digest_init_r): Strip location wrapper from init. When copying "init", also copy the wrapped node. 2018-12-19 Jakub Jelinek PR c++/87934 * constexpr.c (cxx_eval_constant_expression) : Do re-process TREE_CONSTANT CONSTRUCTORs if they aren't reduced constant expressions. 2018-12-19 Alexandre Oliva PR c++/87012 * pt.c (convert_template_argument): Canonicalize type after tsubst/deduce. PR c++/88146 * method.c (do_build_copy_constructor): Guard cvquals init and loop over fields to run for non-inherited ctors only. (synthesize_method): Retain location of inherited ctor. 2018-12-17 Jakub Jelinek PR c++/88410 * cp-gimplify.c (cp_fold) : For offsetof-like folding, call maybe_constant_value on val to see if it is INTEGER_CST. 2018-12-17 Jonathan Wakely PR c++/52321 * typeck.c (build_static_cast): Print a note when the destination type or the operand is a pointer/reference to incomplete class type. 2018-12-16 Jakub Jelinek PR c++/88482 * except.c (verify_library_fn): New function. (declare_library_fn): Use it. Initialize TM even if the non-TM library function has been user declared. (do_end_catch): Don't set TREE_NOTHROW on error_mark_node. (expand_start_catch_block): Don't call initialize_handler_parm for error_mark_node. (build_throw): Use verify_library_fn. Initialize TM even if the non-TM library function has been user declared. Don't crash if any library fn is error_mark_node. 2018-12-14 Jason Merrill * pt.c (tsubst_expr) [DECL_EXPR]: Ignore class-scope bindings when looking up a capture proxy. 2018-12-15 Paolo Carlini PR c++/84644 * decl.c (check_tag_decl): A decltype with no declarator doesn't declare anything. 2018-12-14 Alexandre Oliva PR c++/87814 * pt.c (tsubst_exception_specification): Handle DEFERRED_NOEXCEPT with !defer_ok. 2018-12-14 Jason Merrill PR c++/86823 * parser.c (cp_parser_template_id): Rearrange deferred access checks into the firewall. 2018-12-14 Jakub Jelinek PR c++/82294 PR c++/87436 * init.c (build_vec_init): Change num_initialized_elts type from int to HOST_WIDE_INT. Build a RANGE_EXPR if e needs to be repeated more than once. 2018-12-13 Marek Polacek PR c++/88216 - ICE with class type in non-type template parameter. * mangle.c (write_expression): Handle TARGET_EXPR and VIEW_CONVERT_EXPR. * pt.c (convert_nontype_argument): Don't call get_template_parm_object for value-dependent expressions. 2018-12-13 Nathan Sidwell PR c++/87531 * class.c (finish_struct): Set DECL_CONTEXT of template assign op. * name-lookup.c (get_class_binding_direct): Don't strip using-decl of overload here. * parser.c (cp_parser_postfix_expression): Cope with using decl in overload set. * semantics.c (finish_id_expr): Likewise. 2018-12-12 Paolo Carlini * decl.c (grokdeclarator): Fix location of error message about static data member definition. 2018-12-12 Jakub Jelinek PR c++/88446 * cp-tree.h (maybe_constant_value): Add manifestly_const_eval argument. * constexpr.c (struct constexpr_call): Rename pretend_const_required member to manifestly_const_eval. (struct constexpr_ctx): Likewise. (constexpr_call_hasher::equal): Adjust users. (cxx_eval_builtin_function_call): Likewise. Formatting fix. (cxx_eval_call_expression): Adjust users. (cxx_eval_outermost_constant_expr, maybe_constant_init_1, maybe_constant_init): Rename pretend_const_required argument to manifestly_const_eval, adjust function comments. (maybe_constant_value): Add manifestly_const_eval argument. If true, don't cache and call cxx_eval_outermost_constant_expr with true as manifestly_const_eval. * decl.c (compute_array_index_type_loc): Call maybe_constant_value with true as manifestly_const_eval. PR c++/88449 * constexpr.c (struct constexpr_call): Add pretend_const_required member. (constexpr_call_hasher::equal): Return false if pretend_const_required members differ. (cxx_eval_call_expression): Adjust new_call initialization. Hash in ctx->pretend_const_required. 2018-12-11 Jakub Jelinek PR c++/87861 * class.c (build_vtbl_initializer): For TARGET_VTABLE_USES_DESCRIPTORS bump index for each added word. * constexpr.c (find_array_ctor_elt): Add forward declaration. (cxx_eval_call_expression): Handle TARGET_VTABLE_USES_DESCRIPTORS vtable calls. (cxx_eval_constant_expression) : Divide token by TARGET_VTABLE_USES_DESCRIPTORS if non-zero. 2018-12-11 Marek Polacek PR c++/86608 - reading constexpr volatile variable. * constexpr.c (potential_constant_expression_1): Check want_rval instead of checking if we have a decl. * decl2.c (decl_maybe_constant_var_p): Don't consider volatile constexpr variables as maybe constant. 2018-12-11 Paolo Carlini * decl.c (grokvardecl): Add location_t parameter and use it in build_lang_decl_loc and build_decl calls. (grokdeclarator): Move up loc declaration and use it in the grokvardecl call too. 2018-12-09 Cesar Philippidis * parser.c (cp_parser_oacc_kernels_parallel): Adjust EXPR_LOCATION on the combined acc loop. 2018-12-07 Paolo Carlini * decl2.c (grokbitfield): Use DECL_SOURCE_LOCATION in error messages about bit-fields with function type, warn_if_not_aligned type, and static bit-fields; avoid DECL_NAME for unnamed declarations. 2018-12-07 Jakub Jelinek PR c++/86669 * call.c (make_temporary_var_for_ref_to_temp): Call pushdecl even for automatic vars. PR c++/87506 * constexpr.c (adjust_temp_type): Handle EMPTY_CLASS_EXPR. 2018-12-06 Paolo Carlini * class.c (check_bitfield_decl): In error message about non-integral type print the type itself too. * decl.c (grokdeclarator): Do not ICE on unnamed bit-fields declared friends; when calling build_decl for a FIELD_DECL possibly pass the declarator->id_loc. 2018-12-06 Alexandre Oliva PR c++/86747 * pt.c (tsubst_friend_class): Enter tsubsted class context. PR c++/86397 * except.c (build_noexcept_spec): Resolve nondependent expressions. 2018-12-06 Jason Merrill PR c++/88136 - -Wdeprecated-copy false positives * class.c (classtype_has_depr_implicit_copy): Rename from classtype_has_user_copy_or_dtor. * method.c (lazily_declare_fn): Adjust. * decl2.c (cp_warn_deprecated_use): Refer to -Wdeprecated-copy-dtor if deprecation is due to a destructor. 2018-12-06 Marek Polacek PR c++/88373 - wrong parse error with ~. * parser.c (cp_parser_template_name): Check tag_type for none_type. 2018-12-06 Segher Boessenkool * cp-tree.h (finish_asm_stmt): Update declaration. * parser.c (cp_parser_asm_definition): Detect the inline keyword after asm. Pass a flag for it to finish_asm_stmt. * pt.c (tsubst_expr): Pass the ASM_INLINE_P flag to finish_asm_stmt. * semantics.c (finish_asm_stmt): Add inline_p parameter. Use it to set ASM_INLINE_P. 2018-12-06 Segher Boessenkool PR inline-asm/55681 * parser.c (cp_parser_asm_definition): Update grammar. Allow any combination of volatile and goto, in any order, without repetitions. 2018-12-06 David Malcolm PR c++/85110 * call.c (conversion_null_warnings): Try to use the location of the expression for the warnings. Add notes showing the parameter of the function decl, where available. (get_fndecl_argument_location): For implicitly-declared functions, use the fndecl location rather than that of the param. (maybe_inform_about_fndecl_for_bogus_argument_init): New function. (convert_like_real): Use it in various places to avoid repetition. (complain_about_bad_argument): Likewise. * cp-tree.h (maybe_inform_about_fndecl_for_bogus_argument_init): New declaration. * decl2.c (check_default_args): Put all diagnostics for the fndecl into a diagnostic group. Use the location of the parameter when complaining about parameters with missing default arguments in preference to that of the fndecl. Attempt to record the location of the first parameter with a default argument and emit a note for the first parameter that's missing one. * typeck.c (convert_arguments): When complaining about parameters with incomplete types, attempt to use the location of the argument. Where available, add a note showing the pertinent parameter in the fndecl. (convert_for_assignment): When complaining about bad conversions at function calls, use the location of the unstripped argument. (convert_for_initialization): When checking for bogus references, add an auto_diagnostic_group, and update the note to use the location of the pertinent parameter, rather than just the callee. 2018-12-06 Paolo Carlini * decl2.c (grokbitfield): Use DECL_SOURCE_LOCATION in error message; print the type too; fix thinko in INDIRECT_TYPE_P use. 2018-12-05 Alexandre Oliva PR c++/85569 * constexpr.c (adjust_temp_type): Test for type equality with same_type_p. (constexpr_call_hasher::equal): Likewise. 2018-12-04 Paolo Carlini PR c++/84636 * decl.c (grokdeclarator): Avoid crashing on an anonymous bit-field with function type. 2018-12-04 Marek Polacek PR c++/88184 - ICE when treating name as template-name. * pt.c (lookup_template_function): Always build the TEMPLATE_ID_EXPR with unknown_type_node. 2018-12-04 Julian Brown * parser.c (cp_parser_oacc_wait_list): Fix error message and avoid duplicate diagnostic. 2018-12-04 Jakub Jelinek PR c++/88103 * typeck.c (build_class_member_access_expr): If unary_complex_lvalue turned xvalue_p into non-xvalue_p, call move on it. 2018-12-02 Jakub Jelinek PR c++/88258 * parser.c (cp_parser_skip_to_closing_parenthesis_1, cp_parser_skip_to_end_of_statement, cp_parser_skip_to_end_of_block_or_statement, cp_parser_skip_to_closing_brace, cp_parser_skip_to_closing_square_bracket, cp_parser_skip_balanced_tokens): Don't treat CPP_PRAGMA_EOL specially if in_pragma is false. 2018-12-01 Marek Polacek Implement P0634R3, Down with typename! * parser.c (CP_PARSER_FLAGS_TYPENAME_OPTIONAL): New enumerator. (cp_parser_type_name): Remove declaration. (cp_parser_postfix_expression): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL to cp_parser_type_id. (cp_parser_new_type_id): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL to cp_parser_type_specifier_seq. (cp_parser_lambda_declarator_opt): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL to cp_parser_parameter_declaration_clause. (cp_parser_condition): Pass CP_PARSER_FLAGS_NONE to cp_parser_declarator. (cp_parser_simple_declaration): Pass CP_PARSER_FLAGS_NONE to cp_parser_init_declarator. (cp_parser_conversion_type_id): Pass CP_PARSER_FLAGS_NONE to cp_parser_type_specifier_seq. (cp_parser_default_type_template_argument): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL to cp_parser_type_id. (cp_parser_template_parameter): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL to cp_parser_parameter_declaration. (cp_parser_explicit_instantiation): Pass CP_PARSER_FLAGS_NONE to cp_parser_declarator. (cp_parser_simple_type_specifier): Adjust call to cp_parser_type_name to relay if we should treat the typename keyword as optional. Maybe call cp_parser_make_typename_type is parsing a template-id and it's not a TYPE_DECL. (cp_parser_type_name): Remove unused function. (cp_parser_enum_specifier): Pass to CP_PARSER_FLAGS_NONE cp_parser_type_specifier_seq. (cp_parser_alias_declaration): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL to cp_parser_type_id. (cp_parser_init_declarator): New parameter. Pass it down to cp_parser_declarator. (cp_parser_declarator): New parameter. Pass CP_PARSER_FLAGS_NONE to cp_parser_declarator. Pass the new parameter to cp_parser_direct_declarator. (cp_parser_direct_declarator): New parameter. Pass it to cp_parser_parameter_declaration_clause and cp_parser_declarator. (cp_parser_declarator_id): (cp_parser_type_id_1): New parameter. Pass it to cp_parser_type_specifier_seq. Adjust call to cp_parser_declarator. (cp_parser_type_id): New parameter. Pass it to cp_parser_type_id_1. (cp_parser_template_type_arg): Pass CP_PARSER_FLAGS_NONE to cp_parser_type_id_1. (cp_parser_trailing_type_id): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL to cp_parser_type_id_1. (cp_parser_type_specifier_seq): New parameter. (function_being_declared_is_template_p): (cp_parser_parameter_declaration_clause): New parameter. Pass it to cp_parser_parameter_declaration_list. (cp_parser_parameter_declaration_list): New parameter. Pass it to cp_parser_parameter_declaration. (cp_parser_parameter_declaration): New parameter. Pass it to cp_parser_decl_specifier_seq. Pass CP_PARSER_FLAGS_NONE to cp_parser_declarator. (cp_parser_member_declaration): Adjust call to cp_parser_decl_specifier_seq to also include CP_PARSER_FLAGS_TYPENAME_OPTIONAL. Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL to cp_parser_declarator. (cp_parser_exception_declaration): Pass CP_PARSER_FLAGS_NONE to cp_parser_type_specifier_seq and cp_parser_declarator. (cp_parser_requirement_parameter_list): Pass CP_PARSER_FLAGS_NONE to cp_parser_parameter_declaration_clause. (cp_parser_constructor_declarator_p): Resolve the TYPENAME_TYPE. (cp_parser_single_declaration): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL to cp_parser_decl_specifier_seq and cp_parser_init_declarator. (cp_parser_cache_defarg): Pass CP_PARSER_FLAGS_NONE to cp_parser_declarator and cp_parser_parameter_declaration_list. (cp_parser_objc_method_tail_params_opt): Pass CP_PARSER_FLAGS_NONE to cp_parser_parameter_declaration. (cp_parser_objc_class_ivars): Pass CP_PARSER_FLAGS_NONE to cp_parser_declarator. (cp_parser_objc_try_catch_finally_statement): Pass CP_PARSER_FLAGS_NONE to cp_parser_parameter_declaration (cp_parser_objc_struct_declaration): Pass CP_PARSER_FLAGS_NONE to cp_parser_declarator. (cp_parser_omp_for_loop_init): Pass CP_PARSER_FLAGS_NONE to cp_parser_declarator and cp_parser_type_specifier_seq. 2018-11-30 David Malcolm * typeck2.c: Include "gcc-rich-location.h". (cxx_incomplete_type_diagnostic): When complaining about possibly missing parens, add a fix-it hint if the member function takes no additional params. 2018-11-30 James Norris * parser.c (cp_parser_oacc_enter_exit_data): Use existing local variable. 2018-11-29 Paolo Carlini * decl.c (compute_array_index_type_loc): New, like the current compute_array_index_type but takes a location_t too. (compute_array_index_type): Forward to the latter. (create_array_type_for_decl): Use compute_array_index_type_loc. 2018-11-29 David Malcolm PR c++/88121 * cp-name-hint.h (suggest_alternative_in_scoped_enum): New decl. * error.c (dump_scope): Ensure that we print any scope for values of unscoped enums. Print the scope of values of scoped enums. (qualified_name_lookup_error): Offer suggestions for failures within scoped enums by calling suggest_alternative_in_scoped_enum. * name-lookup.c (class namespace_hints): Update comment to mention scoped enums. (namespace_hints::namespace_hints): Call maybe_add_candidate_for_scoped_enum. (namespace_hints::maybe_add_candidate_for_scoped_enum): New member (suggest_alternatives_for): Update comment to mention scoped enums. (suggest_alternative_in_scoped_enum): New function. 2018-11-28 Marek Polacek Implement P1094R2, Nested inline namespaces. * parser.c (cp_parser_namespace_definition): Parse the optional inline keyword in a nested-namespace-definition. Adjust push_namespace call. Formatting fix. 2018-11-28 Nathan Sidwell PR c++/87531 * class.c (finish_struct): In a template, add artificial using decl for operator=. 2018-11-28 Jan Hubicka * except.c (do_allocate_exception): Annotate __cxa_allocate_exception as COLD. 2018-11-28 Marek Polacek PR c++/88222 - ICE with bit-field with invalid type. * decl.c (grokdeclarator): Check if declarator is null. 2018-11-28 Jakub Jelinek PR c++/87476 * typeck2.c (digest_init_r): Re-add handing of signed/unsigned char strings and add it to the initialization of wide array from non-wide string diagnostics too. 2018-11-27 Jakub Jelinek PR c++/88187 * decl.c (grokdeclarator): Don't diagnose deduction guide errors if !funcdecl_p. PR c++/88181 * class.c (fixup_attribute_variants): Also propagate TYPE_PACKED to variants. 2018-11-26 Marek Polacek PR c++/88120 - ICE when calling save_expr in a template. * typeck.c (cp_build_binary_op): Call cp_save_expr instead of save_expr. 2018-11-22 Jakub Jelinek PR c++/87386 * parser.c (cp_parser_operator): Use str.get_value () instead of just str in USERDEF_LITERAL_VALUE and USERDEF_LITERAL_SUFFIX_ID arguments. 2018-11-21 Jakub Jelinek PR c++/88122 * method.c (maybe_explain_implicit_delete): If FUNCTION_FIRST_USER_PARMTYPE (decl) is NULL, set const_p to false instead of ICEing. PR c++/87386 * parser.c (cp_parser_primary_expression): Use id_expression.get_location () instead of id_expr_token->location. Adjust the range from id_expr_token->location to id_expressio.get_finish (). (cp_parser_operator_function_id): Pass location of the operator token down to cp_parser_operator. (cp_parser_operator): Add start_loc argument, always construct a location with caret at start_loc and range from start_loc to the finish of the last token. PR c++/87393 * parser.c (cp_parser_linkage_specification): Remove useless dereference of the consume_open method result. 2018-11-20 Martin Sebor * cp-tree.h (cp_check_const_attributes): Declare. * decl2.c (cp_check_const_attributes): Declare extern. * parser.c (cp_parser_has_attribute_expression): New function. (cp_parser_unary_expression): Handle RID_HAS_ATTRIBUTE_EXPRESSION. (cp_parser_gnu_attribute_list): Add argument. 2018-11-20 Jakub Jelinek PR c++/88110 * constexpr.c (cxx_eval_constant_expression) : Punt if get_base_address of ADDR_EXPR operand is not a DECL_P. 2018-11-19 Marek Polacek PR c++/87781 - detect invalid elaborated-type-specifier. * parser.c (cp_parser_elaborated_type_specifier): Ensure that typename follows a nested-name-specifier. 2018-11-18 Paolo Carlini * decl2.c (grokfield): Remove obsolete _vptr check; fix explicit template argument list error location. 2018-11-16 Kamlesh Kumar DR 1207 PR c++/52869 * parser.c (cp_parser_noexcept_specification_opt): Call inject_this_parameter. 2018-11-16 Jason Merrill Implement P0479R5, [[likely]] and [[unlikely]]. * tree.c (handle_likeliness_attribute): New. (std_attribute_table): Add likely/unlikely. * cp-gimplify.c (lookup_hotness_attribute, remove_hotness_attribute) (process_stmt_hotness_attribute, first_stmt): New. (genericize_if_stmt): Check for duplicate predictions. * parser.c (cp_parser_statement): Call process_stmt_hotness_attribute. (cp_parser_label_for_labeled_statement): Apply attributes to case. * decl.c (finish_case_label): Give label in template type void. * pt.c (tsubst_expr) [CASE_LABEL_EXPR]: Copy attributes. [PREDICT_EXPR]: Handle. 2018-11-16 Nathan Sidwell Remove ovl_used, it is no longer needed * cp-tree.h (OVL_USED_P): Delete. (lookup_keep): Delete. * friend.c (add_friend): Don't call it. * parser.c (lookup_literal_operator): Likewise. (cp_parser_primary_expression): Likewise. * semantics.c (perform_koenig_lookup): Likewise. * pt.c (tsubst_copy ): Don't assert OVL_USED_P. * tree.c (ovl_copy): Delete. (ovl_insert): Remove OVL_USED_P checks. (ovl_iterator::reveal_node): Likewise. (ovl_iterator::remove__node): Likewise. (ovl_used, lookup_keep): Delete. PR c++/87269 * parser.c (lookup_literal_operator): Mark overload for keeping when inside template. Refactor. 2018-11-15 Nathan Sidwell PR c++/86246 PR c++/87989 * typeck.c (finish_class_member_access_expr): Conversion operator to dependent type is dependent. 2018-11-15 Paolo Carlini * constexpr.c (ensure_literal_type_for_constexpr_object): Use DECL_SOURCE_LOCATION in error_at calls. 2018-11-15 Nathan Sidwell DR 2336 * cp-tree.h (enum special_function_kind): Add sfk_virtual_destructor. * method.c (type_has_trivial_fn): Add it. (SFK_DTOR_P): Likewise. (synthesized_method_base_walk): Don't check access of vbases of abstract classes when sfk_virtual_destructor. (synthesized_method_walk): Skip vbases of abstract classes except when sfk_virtual_destructor. (get_defaulted_eh_spec): Set sfk_virtual_destructor as needed. * cp-tree.h (enum special_function_kind): Reorder and comment. * method.c (SFK_CTOR_P, SFK_DTOR_P, SFK_ASSIGN_P, SFK_COPY_P) (SFK_MOVE_P): New predicates. (walk_field_subobs, synthesized_method_base_walk): Drop copy_arg_p, move_p, assign_p args. Use new SFK predicates. Order parameters consistently. (synthesized_method_walk): Drop ctor_p, copy_arg_p, move_p, assign_p calculations. Use new SFK predicates. Adjust calls to worker functions. 2018-11-14 Paolo Carlini * parser.c (make_id_declarator): Add location_t parameter. (cp_parser_lambda_declarator_opt): Adjust call. (cp_parser_decomposition_declaration): Likewise. (cp_parser_alias_declaration): Likewise. (cp_parser_direct_declarator): Likewise. (cp_parser_member_declaration): Likewise. (cp_parser_objc_class_ivars): Likewise. * decl.c (grokdeclarator): Use declarator->id_loc in two error messages. 2018-11-14 Jakub Jelinek P1236R1 - Signed integers are two's complement * constexpr.c (cxx_eval_check_shift_p): Disable the signed LSHIFT_EXPR checks for c++2a. 2018-11-13 David Malcolm * call.c: Replace "source_location" with "location_t". * cp-tree.h: Likewise. * cvt.c: Likewise. * name-lookup.c: Likewise. * parser.c: Likewise. * typeck.c: Likewise. 2018-11-12 Jason Merrill Implement P0315R4, Lambdas in unevaluated contexts. * decl2.c (min_vis_expr_r): Handle LAMBDA_EXPR. * mangle.c (write_expression): Handle LAMBDA_EXPR. * parser.c (cp_parser_lambda_expression): Allow lambdas in unevaluated context. Start the tentative firewall sooner. (cp_parser_lambda_body): Use cp_evaluated. * pt.c (iterative_hash_template_arg): Handle LAMBDA_EXPR. (tsubst_function_decl): Substitute a lambda even if it isn't dependent. (tsubst_lambda_expr): Use cp_evaluated. Always complain. (tsubst_copy_and_build) [LAMBDA_EXPR]: Do nothing if tf_partial. * semantics.c (begin_class_definition): Allow in template parm list. * tree.c (strip_typedefs_expr): Pass through LAMBDA_EXPR. (cp_tree_equal): Handle LAMBDA_EXPR. * pt.c (fn_type_unification): If we have a full set of explicit arguments, go straight to substitution. * decl2.c (min_vis_expr_r, expr_visibility): New. (min_vis_r): Call expr_visibility. (constrain_visibility_for_template): Likewise. Implement P0722R3, destroying operator delete. * call.c (std_destroying_delete_t_p, destroying_delete_p): New. (aligned_deallocation_fn_p, usual_deallocation_fn_p): Use destroying_delete_p. (build_op_delete_call): Handle destroying delete. * decl2.c (coerce_delete_type): Handle destroying delete. * init.c (build_delete): Don't call dtor with destroying delete. * optimize.c (build_delete_destructor_body): Likewise. Implement P0780R2, pack expansion in lambda init-capture. * parser.c (cp_parser_lambda_introducer): Parse pack init-capture. * pt.c (tsubst_pack_expansion): Handle init-capture packs. (lookup_init_capture_pack): New. (tsubst_expr) [DECL_EXPR]: Use it. (tsubst_lambda_expr): Remember field pack expansions for init-captures. * cp-tree.h (struct cp_evaluated): New. * init.c (get_nsdmi): Use it. * parser.c (cp_parser_enclosed_template_argument_list): Use it. * pt.c (coerce_template_parms, tsubst_aggr_type): Use it. 2018-11-09 Jakub Jelinek * parser.c (cp_parser_omp_clause_final, cp_parser_omp_clause_if): Use cp_parser_assignment_expression instead of cp_parser_condition. (cp_parser_omp_clause_num_threads, cp_parser_omp_clause_num_tasks, cp_parser_omp_clause_grainsize, cp_parser_omp_clause_priority, cp_parser_omp_clause_num_teams, cp_parser_omp_clause_thread_limit, cp_parser_omp_clause_linear, cp_parser_omp_clause_device): Use cp_parser_assignment_expression instead of cp_parser_expression. (cp_parser_omp_clause_hint): Likewise. Formatting fix. * parser.c (cp_parser_omp_clause_reduction): Call sorry_at on reduction clause with inscan modifier. * parser.c (cp_parser_omp_requires): Call sorry_at on requires clauses other than atomic_default_mem_order. 2018-11-09 Martin Sebor PR middle-end/81824 * pt.c (warn_spec_missing_attributes): Move code to attribs.c. Call decls_mismatched_attributes. 2018-11-08 Jakub Jelinek * constexpr.c (potential_constant_expression_1): Handle OMP_DEPOBJ. * cp-gimplify.c (cp_genericize_r): Handle OMP_CLAUSE_{IN,TASK}_REDUCTION. (cxx_omp_predetermined_sharing_1): Don't return OMP_CLAUSE_DEFAULT_SHARED for const qualified decls with no mutable member. Return OMP_CLAUSE_DEFAULT_FIRSTPRIVATE for this pointer. * cp-objcp-common.c (cp_common_init_ts): Handle OMP_DEPOBJ. * cp-tree.def (OMP_DEPOBJ): New tree code. * cp-tree.h (OMP_ATOMIC_DEPENDENT_P): Return true also for first argument being OMP_CLAUSE. (OMP_DEPOBJ_DEPOBJ, OMP_DEPOBJ_CLAUSES): Define. (cp_convert_omp_range_for, cp_finish_omp_range_for): Declare. (finish_omp_atomic): Add LOC, CLAUSES and MO arguments. Remove SEQ_CST argument. (finish_omp_for_block): Declare. (finish_omp_flush): Add MO argument. (finish_omp_depobj): Declare. * cxx-pretty-print.c (cxx_pretty_printer::statement): Handle OMP_DEPOBJ. * dump.c (cp_dump_tree): Likewise. * lex.c (cxx_init): Likewise. * parser.c: Include memmodel.h. (cp_parser_for): Pass false as new is_omp argument to cp_parser_range_for. (cp_parser_range_for): Add IS_OMP argument, return before finalizing if it is true. (cp_parser_omp_clause_name): Handle nontemporal, in_reduction and task_reduction clauses. (cp_parser_omp_var_list_no_open): Handle OMP_CLAUSE_{IN,TASK}_REDUCTION. For OMP_CLAUSE_DEPEND, parse clause operands as either an array section, or lvalue assignment expression. (cp_parser_omp_clause_if): Handle cancel and simd modifiers. (cp_parser_omp_clause_defaultmap): Parse new kinds of defaultmap clause. (cp_parser_omp_clause_reduction): Add IS_OMP and KIND arguments. Parse reduction modifiers. Pass KIND to c_parser_omp_variable_list. (cp_parser_omp_clause_lastprivate, cp_parser_omp_iterators): New functions. (cp_parser_omp_clause_depend): Parse iterator modifier and handle iterators. Parse mutexinoutset and depobj kinds. (cp_parser_oacc_all_clauses): Adjust cp_parser_omp_clause_reduction callers. (cp_parser_omp_all_clauses): Likewise. Handle PRAGMA_OMP_CLAUSE_NONTEMPORAL and PRAGMA_OMP_CLAUSE_{IN,TASK}_REDUCTION. Call cp_parser_omp_clause_lastprivate for OpenMP lastprivate clause. (cp_parser_omp_atomic): Pass pragma_tok->location as LOC to finish_omp_atomic. Parse hint and memory order clauses. Handle default memory order from requires directive if any. Adjust finish_omp_atomic caller. (cp_parser_omp_critical): Allow comma in between (name) and hint clause. (cp_parser_omp_depobj): New function. (cp_parser_omp_flush): Parse flush with memory-order-clause. (cp_parser_omp_for_cond): Allow NE_EXPR even in OpenMP loops. (cp_convert_omp_range_for, cp_finish_omp_range_for): New functions. (cp_parser_omp_for_loop): Parse C++11 range for loops among omp loops. Handle OMP_CLAUSE_IN_REDUCTION like OMP_CLAUSE_REDUCTION. (OMP_SIMD_CLAUSE_MASK): Add if and nontemporal clauses. (cp_parser_omp_simd, cp_parser_omp_for): Call keep_next_level before begin_omp_structured_block and call finish_omp_for_block on finish_omp_structured_block result. (cp_parser_omp_master): Add p_name, mask and cclauses arguments. Allow to be called while parsing combined parallel master. Parse combined master taskloop{, simd}. (cp_parser_omp_parallel): Parse combined parallel master{, taskloop{, simd}} constructs. (cp_parser_omp_single): Use SET_EXPR_LOCATION. (OMP_TASK_CLAUSE_MASK): Add in_reduction clause. (OMP_TASKWAIT_CLAUSE_MASK): Define. (cp_parser_omp_taskwait): Handle taskwait with depend clauses. (OMP_TASKGROUP_CLAUSE_MASK): Define. (cp_parser_omp_taskgroup): Parse taskgroup clauses, adjust c_finish_omp_taskgroup caller. (cp_parser_omp_distribute): Call keep_next_level before begin_omp_structured_block and call finish_omp_for_block on finish_omp_structured_block result. (cp_parser_omp_teams): Force a BIND_EXPR with BLOCK around teams body. (cp_parser_omp_target_data): Allow target data with only use_device_ptr clauses. (cp_parser_omp_target): Set OMP_REQUIRES_TARGET_USED bit in omp_requires_mask. (cp_parser_omp_requires): New function. (OMP_TASKLOOP_CLAUSE_MASK): Add reduction and in_reduction clauses. (cp_parser_omp_taskloop): Add forward declaration. Disallow in_reduction clause when combined with parallel master. Call keep_next_level before begin_omp_structured_block and call finish_omp_for_block on finish_omp_structured_block result. (cp_parser_omp_construct): Adjust cp_parser_omp_master caller. (cp_parser_pragma): Handle PRAGMA_OMP_DEPOBJ and PRAGMA_OMP_REQUIRES. * pt.c (tsubst_omp_clause_decl): Add iterators_cache argument. Adjust recursive calls. Handle iterators. (tsubst_omp_clauses): Handle OMP_CLAUSE_{IN,TASK}_REDUCTION and OMP_CLAUSE_NONTEMPORAL. Adjust tsubst_omp_clause_decl callers. (tsubst_decomp_names): (tsubst_omp_for_iterator): Change orig_declv into a reference. Handle range for loops. Move orig_declv handling after declv/initv handling. (tsubst_expr): Force a BIND_EXPR with BLOCK around teams body. Adjust finish_omp_atomic caller. Call keep_next_level before begin_omp_structured_block. Call cp_finish_omp_range_for for range for loops and use {begin,finish}_omp_structured_block instead of {push,pop}_stmt_list if there are any range for loops. Call finish_omp_for_block on finish_omp_structured_block result. Handle OMP_DEPOBJ. Handle taskwait with depend clauses. For OMP_ATOMIC call tsubst_omp_clauses on clauses if any, adjust finish_omp_atomic caller. Use OMP_ATOMIC_MEMORY_ORDER rather than OMP_ATOMIC_SEQ_CST. Handle clauses on OMP_TASKGROUP. (dependent_omp_for_p): Always return true for range for loops if processing_template_decl. Return true if class type iterator does not have INTEGER_CST increment. * semantics.c: Include memmodel.h. (handle_omp_array_sections_1): Handle OMP_CLAUSE_{IN,TASK}_REDUCTION like OMP_CLAUSE_REDUCTION. (handle_omp_array_sections): Likewise. Call save_expr on array reductions before calling build_index_type. Handle depend clauses with iterators. (finish_omp_reduction_clause): Call save_expr for whole array reduction sizes. Don't mark OMP_CLAUSE_DECL addressable if it has reference type. Do mark decl_placeholder addressable if needed. Use error_at with OMP_CLAUSE_LOCATION (c) as first argument instead of error. (cp_omp_finish_iterators): New function. (finish_omp_clauses): Don't diagnose nonmonotonic clause with static, runtime or auto schedule kinds. Diagnose nogroup clause used with reduction clause(s). Handle depend clause with OMP_CLAUSE_DEPEND_DEPOBJ. Diagnose bit-fields. Require omp_depend_t type for OMP_CLAUSE_DEPEND_DEPOBJ kinds and some different type for other kinds. Use cp_build_addr_expr and cp_build_indirect_ref instead of cxx_mark_addressable. Handle depend clauses with iterators. Only handle static data members in the special case that const qualified vars may be specified in firstprivate clause. Complain if const qualified vars without mutable members are mentioned in data-sharing clauses other than firstprivate or shared. Use error_at with OMP_CLAUSE_LOCATION (c) as first argument instead of error. Diagnose more than one nontemporal clause refering to the same variable. Use error_at rather than error for priority and hint clause diagnostics. Fix pasto for hint clause. Diagnose hint expression that doesn't fold into INTEGER_CST. Diagnose if clause with modifier other than cancel. Handle OMP_CLAUSE_{IN,TASK}_REDUCTION like OMP_CLAUSE_REDUCTION. Allow any lvalue as OMP_CLAUSE_DEPEND operand (besides array section), adjust diagnostics. (handle_omp_for_class_iterator): Don't create a new TREE_LIST if one has been created already for range for, just fill TREE_PURPOSE and TREE_VALUE. Call cp_fully_fold on incr. (finish_omp_for): Don't check cond/incr if cond is global_namespace. Pass to c_omp_check_loop_iv_exprs orig_declv if non-NULL. Don't use IS_EMPTY_STMT on NULL pre_body. Adjust c_finish_omp_for caller. (finish_omp_for_block): New function. (finish_omp_atomic): Add LOC argument, pass it through to c_finish_omp_atomic and set it as location of OMP_ATOMIC* trees. Remove SEQ_CST argument. Add CLAUSES and MO arguments. Adjust c_finish_omp_atomic caller. Stick clauses if any into first argument of wrapping OMP_ATOMIC. (finish_omp_depobj): New function. (finish_omp_flush): Add MO argument, if not MEMMODEL_LAST, emit __atomic_thread_fence call with the given value. (finish_omp_cancel): Diagnose if clause with modifier other than cancel. 2018-11-07 Nathan Sidwell PR c++/87904 * cp-tree.h (struct tree_overload): Fix comment. * tree.c (ovl_iterator::reveal_node): Propagate OVL_DEDUP_P. 2018-11-04 Jason Merrill Implement UDL changes from P0732R2. * cp-tree.h (struct releasing_vec): Move from mangle.c. Add get_ref method. * parser.c (cp_parser_userdef_string_literal): Use it. Handle passing the string to a single template parameter of class type. (cp_parser_template_declaration_after_parameters): Allow it. Pedwarn about the character pack template that was proposed but not accepted for C++14, and don't suggest it. Implement P0732R2, class types in non-type template parameters. * error.c (dump_simple_decl): Look through a template parm object. * mangle.c (write_template_arg): Likewise. (mangle_template_parm_object): New. * pt.c (template_parm_object_p, get_template_parm_object): New. (invalid_tparm_referent_p): Factor from convert_nontype_argument. (convert_nontype_argument, invalid_nontype_parm_type_p): Handle class-type template arguments. * tree.c (lvalue_kind): Likewise. * cvt.c (ocp_convert): Don't wrap a CONSTRUCTOR in a NOP_EXPR. * constexpr.c (initialized_type): Fix AGGR_INIT_EXPR handling. (cxx_eval_vec_init_1): Correct type of AGGR_INIT_EXPR. (cxx_eval_outermost_constant_expr): Make sure a CONSTRUCTOR has the right type. Don't wrap a CONSTRUCTOR if one was passed in. * tree.c (build_aggr_init_expr): Check for void. PR c++/60503 - wrong lambda attribute syntax. * parser.c (cp_parser_lambda_declarator_opt): Fix attribute handling. 2018-11-02 Nathan Sidwell * decl.c (duplicate_decls): Refactor checks. 2018-11-01 Marek Polacek Implement P0846R0, ADL and function templates. * decl.c (grokfndecl): Allow FUNCTION_DECL in assert. * lex.c (unqualified_fn_lookup_error): Handle TEMPLATE_ID_EXPR. * parser.c (cp_parser_postfix_expression): Do ADL for a template-name. (cp_parser_template_id): Give errors if parsing the template argument list didn't go well. Allow FUNCTION_DECL in assert. (cp_parser_template_name): Consider a name to refer to a template if it is an unqualified-id followed by a <. Don't return the identifier if the decl is a function and dependent. * pt.c (tsubst_copy) : Remove assert. 2018-11-01 Nathan Sidwell * cp-tree.h (struct lang_function): Delete x_local_names field. (struct lang_decl_base): Rename u2sel to spare. (struct lang_decl_min): Remove lang_decl_u2 union. Keep access field. (LANG_DECL_U2_CHECK): Delete. (DECL_DISCRIMINATOR_P): Require function scope. (DECL_DISCRIMINATOR): Adjust. (DECL_DISCRIMINATOR_SET_P): Delete. (DECL_CAPTURED_VARIABLE, DECL_ACCESS, THUnK_VIRTUAL_OFFSET): Adjust. (local_classes): Don't declare. (determine_local_discriminator): Declare. * decl.c (push_local_name): Delete. (local_entities, determina_local_discrminator): New. (duplicate_decls): Copy DECL_ACCESS. Fix formatting. (cp_finish_decl): Use determine_local_discriminator. (save_function_data): Drop x_local_names. (finish_function): Drop local_names. * decl2.c (finish_anon_union): Use determine_local_disciminator. * mangle.c (write_unnamed_type_name): Use discriminator_for_local_entity. (local_class_index): Delete. (discriminator_for_local_entity): Reimplement. (write_local_name): Adjust discriminator code. * name-lookup.c (do_pushtag): Call determine_local_discrimiator. * semantics.c (finish_omp_threadprivate): Drop DECL_DISCRIMINATOR handling. * class.c (local_classes): Delete. (init_class_processing): Don't init it. 2018-11-01 Martin Liska Jason Merrill PR c++/64266 PR bootstrap/70422 PR ipa/81277 * cp-tree.h (DECL_FNAME_P): New macro. * decl.c (cp_make_fname_decl): Set DECL_DECLARED_CONSTEXPR_P, DECL_VALUE_EXPR, DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P. (cp_finish_decl): * lambda.c (is_capture_proxy): Use DECL_FNAME_P. * pt.c (tsubst_expr): Handle DECL_PRETTY_FUNCTION_P. 2018-10-31 Nathan Sidwell * cp-tree.h (OVL_DEDUP_P): New. * name-lookup.c (name_lookup::add_overload): Check OVL_DEDUP_P. (get_class_binding_direct): Likwise. * tree.c (ovl_make): Propagate OVL_DEDUP_P. (ovl_copy): Copy it. (ovl_insert): Do not keep using-decls ordered. (lookup_maybe_add): Adjust comment. 2018-10-30 Marek Polacek Implement P0892R2, explicit(bool). * call.c (add_template_candidate_real): Return if the declaration is explicit and we're only looking for non-converting constructor. * cp-tree.h (lang_decl_fn): Add has_dependent_explicit_spec_p bit. (DECL_HAS_DEPENDENT_EXPLICIT_SPEC_P): New macro. (cp_decl_specifier_seq): Add explicit_specifier field. (build_explicit_specifier, store_explicit_specifier): Declare. * decl.c (grokdeclarator): Call store_explicit_specifier. (build_explicit_specifier): New function. * parser.c (cp_parser_function_specifier_opt) : Parse C++20 explicit(bool). * pt.c (store_explicit_specifier, lookup_explicit_specifier): New. (tsubst_function_decl): Handle explicit(dependent-expr). 2018-10-30 Paolo Carlini * decl.c (grokdeclarator): Use declarator->id_loc in diagnostic about flexible array members. 2018-10-29 David Malcolm * cp-name-hint.h: New file. * cp-tree.h (expr_to_string): New decl. (suggest_alternatives_for): Move to cp-name-hint.h, changing return type from bool to name_hint. (suggest_alternative_in_explicit_scope): Likewise. * error.c: Define INCLUDE_UNIQUE_PTR. Include "cp-name-hint.h". (expr_to_string): Make non-static. (qualified_name_lookup_error): For the non-"::" case, take responsibity for issuing any suggestion from suggest_alternative_in_explicit_scope, as it changes from returning a bool to returning a name_hint. Replace fallback call to suggest_alternatives_for to a call to suggest_alternatives_in_other_namespaces, capturing the fact that we don't have enough location information to issue a fix-it hint for this case. Update the error to support emitting a fix-it hint where appropriate. For the "::" case, take responsibility for issuing any suggestion from suggest_alternatives_for, supporting emitting a fix-it hint. * lex.c: Define INCLUDE_UNIQUE_PTR. Include "gcc-rich-location.h" and "cp-name-hint.h". (unqualified_name_lookup_error): Take responsibility for issuing any suggestion from suggest_alternatives_for, supporting emitting a fix-it hint. * name-lookup.c (class namespace_limit_reached): New subclass of deferred_diagnostic. (class show_candidate_location): Likewise. (class suggest_alternatives): Likewise. (class namespace_hints): New class. (suggest_alternatives_for): Convert return type from bool to name_hint, replacing all direct diagnostic emission by setting suggestions on the return value, or creating deferred diagnostics. Specifically, split out initial traversal of namespaces into namespace_hints' ctor, and maybe_decorate_with_limit, and move the rest of the implementation to namespace_hints::convert_candidates_to_name_hint and suggest_alternatives_for_1. (namespace_hints::namespace_hints): New ctor, adapted from suggest_alternatives_for's initial namespace traversal, storing location and name, and converting locals "candidates", "limited" and "limit" into members. (namespace_hints::convert_candidates_to_name_hint): New member function. (namespace_hints::maybe_decorate_with_limit): New member function. (suggest_alternatives_for_1): New function, based on second half of old implementation of suggest_alternatives_for, converting from immediate emission of suggestions to using name_hint. (suggest_alternatives_in_other_namespaces): New function. (maybe_suggest_missing_std_header): Convert from immediate emission of suggestions to using name_hint, moving emission implementation to... (class missing_std_header): New subclass of deferred_diagnostic. (maybe_suggest_missing_header): Convert return type from bool to name_hint. (suggest_alternative_in_explicit_scope): Convert from immediate emission of suggestions to using name_hint. * parser.c: Replace include of "c-family/name-hint.h" with "cp-name-hint.h". (cp_parser_diagnose_invalid_type_name): Update "is there a suggestion" logic for change to name_hint::operator bool. Take responsibility for emitting fix-it hints from suggest_alternative_in_explicit_scope. (cp_parser_namespace_name): Take responsibility for emitting fix-it hints from suggest_alternative_in_explicit_scope. Don't emit the "expected namespace-name" error if we've already emitted an "is not a namespace-name" error. 2018-10-29 David Malcolm PR c++/56856 * call.c (build_over_call): Eliminate the "arglocs" array, and the call to maybe_constant_value when building "fargs". 2018-10-29 Paolo Carlini * decl.c (create_array_type_for_decl): Add location_t parameter and use it. (grokdeclarator): Adjust call. 2018-10-29 Marek Polacek PR c++/87594 - constexpr rejects-valid with range-based for. * constexpr.c (potential_constant_expression_1): If the condition can't be evaluated, return true. 2018-10-29 Joseph Myers Julian Brown PR c++/66053 * semantics.c (handle_omp_array_sections_1): Allow array sections with "this" pointer for OpenACC. 2018-10-25 Jason Merrill * parser.c (cp_parser_sizeof_operand): Remove redundant use of grokdeclarator. 2018-10-24 Jakub Jelinek PR c++/86288 * parser.c (cp_parser_std_attribute): Canonicalize attr_ns, and when :: is not present and attr_ns non-NULL, canonicalize also attr_id. (cp_parser_attribute_spec): Fix comment typo. 2018-10-24 Martin Sebor PR c++/84851 * call.c (maybe_warn_class_memaccess): Tighten up. 2018-10-17 David Malcolm * Make-lang.in (selftest-c++): New. (CPP_SELFTEST_FLAGS, CPP_SELFTEST_DEPS, s-selftest-c++) (selftest-c++-gdb, selftest-c++-valgrind): Move here from gcc/Makefile.in. 2018-10-17 Paolo Carlini PR c++/84705 * tree.c (build_cplus_new): Avoid duplicate diagnostic about incomplete type, early return error_mark_node if the second argument is error_mark_node. 2018-10-12 Nathan Sidwell * parser.h (struct cp_parser): Drop implicit_extern_c. * parser.c (cp_debug_parser): Drop implicit_extern_c. (cp_parser_new): Likewise. (cp_parser_translation_unit): Handle implicit extern c here. Call cp_parser_toplevel_declaration. (cp_parser_toplevel_declaration): New, broken out of ... (cp_parser_declaration_seq_opt): ... here. Call it. Drop implicit extern C handling. 2018-10-11 Will Wray PR c++/87364 * cxx-pretty-print.c (pp_cxx_enumeration_constant): New function. (cxx_pretty_printer::constant): Use it. 2018-10-11 David Malcolm PR c++/84993 * call.c (enforce_access): Move diagnostics to... (complain_about_access): ...this new function. * cp-tree.h (class access_failure_info): Rename split out field "m_field_decl" into "m_decl" and "m_diag_decl". (access_failure_info::record_access_failure): Add tree param. (access_failure_info::was_inaccessible_p): New accessor. (access_failure_info::get_decl): New accessor. (access_failure_info::get_diag_decl): New accessor. (access_failure_info::get_any_accessor): New member function. (access_failure_info::add_fixit_hint): New static member function. (complain_about_access): New decl. * typeck.c (access_failure_info::record_access_failure): Update for change to fields. (access_failure_info::maybe_suggest_accessor): Split out into... (access_failure_info::get_any_accessor): ...this new function... (access_failure_info::add_fixit_hint): ...and this new function. (finish_class_member_access_expr): Split out "has no member named" error-handling into... (complain_about_unrecognized_member): ...this new function, and check that the guessed name is accessible along the access path. Only provide a spell-correction fix-it hint if it is; otherwise, attempt to issue an accessor fix-it hint. 2018-10-11 Nathan Sidwell * parser.c (cp_parser_translation_unit): Return void. Don't fail at first extra }, simplify logic. (c_parse_file): Call finish_translation_unit here. 2018-10-11 Jakub Jelinek PR c++/87582 * typeck.c (maybe_warn_about_returning_address_of_local): If whats_returned is a structured binding identifier and the structured binding is a reference, recurse on its initializer. PR c++/87547 * rtti.c (get_tinfo_decl_dynamic): Use unlowered_expr_type instead of TREE_TYPE. 2018-10-10 Marek Polacek PR c++/87567 - constexpr rejects call to non-constexpr function. * constexpr.c (potential_constant_expression_1) : Return true if the condition is always false. : Likewise. 2018-10-09 Paolo Carlini PR c++/84423 * pt.c (convert_template_argument): Immediately return error_mark_node if the second argument is erroneous. * parser.c (cp_parser_type_id): Add location_t * parameter. (cp_parser_type_id_1): Likewise. (cp_parser_alias_declaration): Adjust cp_parser_type_id call, obtain the location of the type and save it. (cp_parser_template_type_arg): Adjust. (cp_parser_trailing_type_id): Likewise. * decl.c (grokdeclarator): Improve error message for 'auto' in alias declaration. 2018-10-08 Paolo Carlini PR c++/71128 * pt.c (do_decl_instantiation): Per 12.6.8/5, a concept cannot be explicitly instantiated. 2018-10-05 David Malcolm PR c++/56856 * call.c (build_over_call): Build a vec of locations of the arguments before the call to maybe_constant_value, and pass to check_function_arguments. * cp-lang.c (LANG_HOOKS_GET_SUBSTRING_LOCATION): Define as c_get_substring_location. * parser.c (cp_parser_string_literal): Capture string concatenation locations. 2018-10-04 Nathan Sidwell * lang-specs.h: Use string contatenation, not line splicing. 2018-10-03 Jason Merrill Implement P0840, language support for empty objects. * tree.c (handle_no_unique_addr_attribute): New. (cxx_attribute_table): Add [[no_unique_address]]. * class.c (field_poverlapping_p): New. (layout_class_type): Check it. Adjust DECL_SIZE of potentially overlapping fields. (layout_empty_base_or_field): Rename from layout_empty_base, handle FIELD_DECL as well. (build_base_field, record_subobject_offsets): Adjust. 2018-10-03 Martin Liska PR gcov-profile/86109 * parser.c (cp_parser_lambda_declarator_opt): Set DECL_LAMBDA_FUNCTION for lambdas. 2018-10-02 Richard Biener * name-lookup.c (check_local_shadow): Do not test DECL_FROM_INLINE. 2018-09-28 Eric Botcazou Pierre-Marie de Rodat * method.c (use_thunk): Adjust call to cgraph_node::create_thunk. 2018-09-28 Richard Biener * error.c (cp_print_error_function): Simplify by eliding the BLOCK_ABSTRACT_ORIGIN chasing. 2018-09-27 Paolo Carlini PR c++/84940 * semantics.c (finish_unary_op_expr): Check return value of build_x_unary_op for error_mark_node. 2018-09-25 Jakub Jelinek PR c++/87398 * constexpr.c (cxx_eval_constant_expression) : Only look through COMPONENT_REFs with DECL_FIELD_IS_BASE FIELD_DECLs. 2018-09-25 Martin Liska * name-lookup.c (namespace_scope_ht_size): Remove unused function. * parser.c (cp_lexer_next_token_is_not_keyword): Likewise. 2018-09-24 Paolo Carlini PR c++/85070 * method.c (lazily_declare_fn): During error-recovery add_method may return false. 2018-09-21 Marek Polacek PR c++/87372 - __func__ constexpr evaluation. * constexpr.c (maybe_constant_init_1): Pass false for strict down to cxx_eval_outermost_constant_expr. 2018-09-20 Marek Polacek PR c++/87109 - wrong ctor with maybe-rvalue semantics. * call.c (build_user_type_conversion_1): Refine the maybe-rvalue check to only return if we're converting the return value to a base class. 2018-09-20 Allan Sandfeld Jensen * g++spec.c (lang_specific_driver): Handle -r like -nostdlib. 2018-09-20 Jason Merrill PR c++/87075 - ICE with constexpr array initialization. * constexpr.c (cxx_eval_vec_init_1): Handle trivial initialization. 2018-09-19 Marek Polacek Add -Wclass-conversion. * decl.c (grok_op_properties): Change a warning from -Wconversion to -Wclass-conversion. Make it print the types. 2018-09-19 Paolo Carlini PR c++/87324 * parser.c (cp_parser_initializer_list): Assign error_mark_node to the index upon error. 2018-09-19 Marek Polacek PR c++/87357 - missing -Wconversion warning * decl.c (grok_op_properties): Remove diagnostic parts mentioning a conversion to a reference to void. Use same_type_ignoring_top_level_qualifiers_p rather than comparing types directly. 2018-09-18 Marek Polacek P1064R0 - Allowing Virtual Function Calls in Constant Expressions * call.c (build_over_call): No longer check if we're outside a template function. * class.c (build_vtbl_initializer): Build vtable's constructor with indexes. * constexpr.c (cxx_eval_constant_expression): Don't ignore _vptr's initializer. Handle OBJ_TYPE_REF. (potential_constant_expression_1): Handle OBJ_TYPE_REF. * decl.c (maybe_commonize_var): Bail out for any DECL_ARTIFICIAL. (initialize_artificial_var): Mark the variable as constexpr. (grokdeclarator): Change error to pedwarn. Only warn when pedantic and not C++2a. 2018-09-18 Paolo Carlini PR c++/85065 * cp-tree.h (NON_ERROR): New. * pt.c (auto_hash::hash): Use it. (do_auto_deduction): Likewise. 2018-09-18 Nathan Sidwell PR c++/86881 * name-lookup.c (check_local_shadow): Ignore auto types. 2018-09-17 David Malcolm * error.c (range_label_for_type_mismatch::get_text): Update for new param. 2018-09-13 Bernd Edlinger * typeck2.c (digest_init_r): Fix overlength strings. 2018-09-13 Ville Voutilainen PR c++/87093 * method.c (constructible_expr): We're in an unevaluated context in all cases, not just for class targets. 2018-09-12 David Malcolm PR c++/85110 * call.c (struct conversion_info): Add "loc" field. (arg_conversion_rejection): Add "loc" param, using it to initialize the new field. (bad_arg_conversion_rejection): Likewise. (explicit_conversion_rejection): Initialize the new field to UNKNOWN_LOCATION. (template_conversion_rejection): Likewise. (add_function_candidate): Pass on the argument location to the new param of arg_conversion_rejection. (add_conv_candidate): Likewise. (build_builtin_candidate): Likewise. (build_user_type_conversion_1): Likewise. (single_z_candidate): New function. (maybe_get_bad_conversion_for_unmatched_call): New function. (complain_about_bad_argument): New function, based on part of convert_for_assignment. (build_new_method_call_1): Split out handling of the "no viable candidates" case into... (complain_about_no_candidates_for_method_call): ...this new function, and use the new functions above to special-case the handling of a single non-viable candidate due to a bad argument. * cp-tree.h (complain_about_bad_argument): New decl. * typeck.c (convert_for_assignment): Split out one error-handling case into complain_about_bad_argument. 2018-09-09 Cesar Philippidis Julian Brown PR middle-end/86336 * semantics.c (finish_omp_clauses): Treat C++ references the same in OpenACC as OpenMP. 2018-08-28 Martin Liska * constexpr.c (cxx_eval_call_expression): Add quotes to -fconstexpr-depth=. 2018-09-10 Marek Polacek * class.c (build_vtbl_ref): Remove. (build_vtbl_ref_1): Rename to build_vtbl_ref. (build_vfn_ref): Call build_vtbl_ref instead of build_vtbl_ref_1. 2018-09-08 Marek Polacek PR c++/87150 - wrong ctor with maybe-rvalue semantics. * call.c (struct conversion): Update commentary. (standard_conversion): Set rvaluedness_matches_p if LOOKUP_PREFER_RVALUE for ck_base. 2018-09-08 Jason Merrill PR c++/86678 - constexpr function with non-constant after return. * constexpr.c (potential_constant_expression_1): Add jump_target. (breaks): Check for BREAK_STMT. (continues): Check for CONTINUE_STMT. 2018-09-08 Marek Polacek * cxx-pretty-print.c (cxx_pretty_printer::statement) : Handle RANGE_FOR_INIT_STMT. 2018-09-07 Marek Polacek PR c++/87152 - range-based for loops with initializer broken in templates. * constexpr.c (potential_constant_expression_1) : Recur into RANGE_FOR_INIT_STMT. * cp-tree.def: Add RANGE_FOR_INIT_STMT to RANGE_FOR_STMT. * cp-tree.h (RANGE_FOR_INIT_STMT): Define. * dump.c (cp_dump_tree) : Also dump RANGE_FOR_INIT_STMT. * pt.c (tsubst_expr) : Recur into RANGE_FOR_INIT_STMT. * semantics.c (begin_range_for_stmt): Adjust call to build_stmt. Do put the init statement in RANGE_FOR_INIT_STMT. (finish_range_for_decl): Pop it for templates. 2018-09-06 Bernd Edlinger * decl.c (check_initializer): Call cp_complete_array_type. 2018-09-05 Marek Polacek PR c++/87109, wrong overload with ref-qualifiers. * call.c (build_user_type_conversion_1): Use NULL instead of 0. Bail out if performing the maybe-rvalue overload resolution and a conversion function is getting called. PR c++/86982, -Wreturn-local-addr and std::move and std::forward. * typeck.c (maybe_warn_about_returning_address_of_local): Handle calls to std::move or std::forward. (is_std_forward_p): New function. 2018-09-05 Pádraig Brady PR c++/87185 * lambda.c (prune_lambda_captures): Protect against const_vars.get returning NULL. 2018-09-04 Marek Polacek * cp-tree.h (treat_lvalue_as_rvalue_p): Declare. * except.c (build_throw): Use it. Use CP_TYPE_VOLATILE_P. * typeck.c (treat_lvalue_as_rvalue_p): No longer static. Add PARM_OK parameter. (maybe_warn_pessimizing_move): Adjust treat_lvalue_as_rvalue_p call. (check_return_expr): Likewise. 2018-09-03 Paolo Carlini PR c++/84980 * constraint.cc (finish_shorthand_constraint): Early return if the constraint is erroneous. 2018-09-02 Bernd Edlinger * decl.c (eval_check_narrowing): Remove. (check_initializer): Move call to braced_list_to_string from here ... * typeck2.c (store_init_value): ... to here. (digest_init_r): Remove handing of signed/unsigned char strings. 2018-08-31 Nathan Sidwell PR c++/87155 PR c++/84707 * name-lookup.c (name_lookup::search_namespace): Don't look at inlines when searching for NULL names. * decl.c (decls_match): Remove SYSTEM_IMPLICIT_EXTERN_C matching of return types and parms. * parser.c (cp_parser_parameter_declaration_clause): Likewise, '()' always means '(void)'. 2018-08-29 Jakub Jelinek PR c++/87095 * decl.c (begin_destructor_body): If current_class_type has virtual bases and the primary base is nearly empty virtual base, voidify clearing of vptr and make it conditional on in-charge argument. 2018-08-29 Paolo Carlini PR c++/85265 * parser.c (cp_parser_introduction_list): If cp_parser_identifier returns error_mark_node early exit the loop. (cp_parser_template_introduction): Improve error-recovery, remove error call about empty introduction-list. 2018-08-29 David Malcolm PR c++/85110 * call.c (print_conversion_rejection): Add "fn" param and use it for "no known conversion" messages to underline the pertinent param. (print_z_candidate): Supply "fn" to the new param above. 2018-08-29 Jakub Jelinek PR c++/87122 * pt.c (tsubst_expr) : If processing_template_decl and decl is structured binding decl, call cp_finish_decomp. 2018-08-28 Paolo Carlini PR c++/86546 * decl.c (finish_case_label): If the type is erroneous early return error_mark_node. 2018-08-27 David Malcolm PR c++/63392 * parser.c (cp_parser_diagnose_invalid_type_name): Add fix-it hint. 2018-08-27 Jakub Jelinek PR c++/86993 * cp-tree.h (cxx_readonly_error): Add location_t argument. * typeck2.c (cxx_readonly_error): Add LOC argument, pass it to ERROR_FOR_ASSIGNMENT macro and readonly_error. Add LOC argument to ERROR_FOR_ASSIGNMENT macro, use error_at instead of error and pass LOC to it. Formatting fixes. * typeck.c (cp_build_unary_op): Pass location to cxx_readonly_error. (cp_build_modify_expr): Pass loc to cxx_readonly_error. * semantics.c (finish_asm_stmt): Pass input_location to cxx_readonly_error. 2018-08-27 David Malcolm PR c++/87091 * decl.c (grokdeclarator): Update for conversion of show_caret_p to a tri-state. * error.c (cp_printer): Likewise. * name-lookup.c (maybe_suggest_missing_std_header): Update call to maybe_add_include_fixit to suggest overriding the location, as it is for a note. * parser.c (cp_parser_string_literal): Update for conversion of show_caret_p to a tri-state. (cp_parser_elaborated_type_specifier): Likewise. (set_and_check_decl_spec_loc): Likewise. * pt.c (listify): Update call to maybe_add_include_fixit to not override the location, as it is for an error. * rtti.c (typeid_ok_p): Likewise. 2018-08-27 Martin Liska * call.c (build_call_a): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. (build_cxx_call): Likewise. * constexpr.c (constexpr_fn_retval): Likewise. (cxx_eval_builtin_function_call): Likewise. (cxx_eval_call_expression): Likewise. (potential_constant_expression_1): Likewise. * cp-gimplify.c (cp_gimplify_expr): Likewise. (cp_fold): Likewise. * decl.c (decls_match): Likewise. (validate_constexpr_redeclaration): Likewise. (duplicate_decls): Likewise. (make_rtl_for_nonlocal_decl): Likewise. * name-lookup.c (consider_binding_level): Likewise. (cp_emit_debug_info_for_using): Likewise. * semantics.c (finish_call_expr): Likewise. * tree.c (builtin_valid_in_constant_expr_p): Likewise. 2018-08-26 Marek Polacek PR c++/87080 * typeck.c (maybe_warn_pessimizing_move): Do nothing in a template. PR c++/87029, Implement -Wredundant-move. * typeck.c (treat_lvalue_as_rvalue_p): New function. (maybe_warn_pessimizing_move): Call convert_from_reference. Warn about redundant moves. 2018-08-24 Marek Polacek PR c++/67012 PR c++/86942 * decl.c (grokdeclarator): Disallow functions with trailing return type with decltype(auto) as its type. Also check the function if it's inner declarator doesn't exist 2018-08-21 Marek Polacek PR c++/86499 * parser.c (cp_parser_lambda_introducer): Give error if a non-local lambda has a capture-default. 2018-08-21 Paolo Carlini * decl.c (check_static_variable_definition): Change to return void. 2018-08-21 Marek Polacek PR c++/86981, Implement -Wpessimizing-move. * typeck.c (decl_in_std_namespace_p): New. (is_std_move_p): New. (maybe_warn_pessimizing_move): New. (can_do_nrvo_p): New, factored out of ... (check_return_expr): ... here. Warn about potentially harmful std::move in a return statement. PR c++/65043 * call.c (standard_conversion): Set check_narrowing. * typeck2.c (check_narrowing): Use CP_INTEGRAL_TYPE_P rather than comparing with INTEGER_TYPE. * cp-tree.h: Fix typo. 2018-08-20 David Malcolm PR other/84889 * call.c (build_user_type_conversion_1): Add auto_diagnostic_group instance(s). (print_error_for_call_failure): Likewise. (build_op_call_1): Likewise. (build_conditional_expr_1): Likewise. (build_new_op_1): Likewise. (build_op_delete_call): Likewise. (convert_like_real): Likewise. (build_over_call): Likewise. (build_new_method_call_1): Likewise. (joust): Likewise. * class.c (check_tag): Likewise. (finish_struct_anon_r): Likewise. (one_inherited_ctor): Likewise. (finalize_literal_type_property): Likewise. (explain_non_literal_class): Likewise. (find_flexarrays): Likewise. (resolve_address_of_overloaded_function): Likewise. * constexpr.c (ensure_literal_type_for_constexpr_object): Likewise. (is_valid_constexpr_fn): Likewise. (cx_check_missing_mem_inits): Likewise. * cp-gimplify.c (cp_genericize_r): Likewise. * cvt.c (maybe_warn_nodiscard): Likewise. * decl.c (warn_extern_redeclared_static): Likewise. (check_redeclaration_exception_specification): Likewise. (check_no_redeclaration_friend_default_args): Likewise. (duplicate_decls): Likewise. (redeclaration_error_message): Likewise. (warn_misplaced_attr_for_class_type): Likewise. * decl2.c (finish_static_data_member_decl): Likewise. (no_linkage_error): Likewise. (cp_warn_deprecated_use): Likewise. * error.c (qualified_name_lookup_error): Likewise. * friend.c (make_friend_class): Likewise. (do_friend): Likewise. * init.c (perform_member_init): Likewise. (build_new_1): Likewise. (build_vec_delete_1): Likewise. (build_delete): Likewise. * lex.c (unqualified_name_lookup_error): Likewise. * name-lookup.c (check_extern_c_conflict): Likewise. (inform_shadowed): New function. (check_local_shadow): Add auto_diagnostic_group instances, replacing goto "inform_shadowed" label with call to subroutine. (set_local_extern_decl_linkage): Add auto_diagnostic_group instance(s). * parser.c (cp_parser_diagnose_invalid_type_name): Likewise. (cp_parser_namespace_name): Likewise. * pt.c (check_specialization_namespace): Likewise. (check_template_variable): Likewise. (warn_spec_missing_attributes): Likewise. (check_explicit_specialization): Likewise. (process_partial_specialization): Likewise. (lookup_template_class_1): Likewise. (finish_template_variable): Likewise. (do_auto_deduction): Likewise. * search.c (check_final_overrider): Likewise. (look_for_overrides_r): Likewise. * tree.c (maybe_warn_parm_abi): Likewise. * typeck.c (cxx_sizeof_expr): Likewise. (cp_build_function_call_vec): Likewise. (cp_build_binary_op): Likewise. (convert_for_assignment): Likewise. (maybe_warn_about_returning_address_of_local): Likewise. * typeck2.c (abstract_virtuals_error_sfinae): Likewise. (check_narrowing): Likewise. 2018-08-17 David Malcolm * typeck.c (string_conv_p): Extract location from EXP and use it in preference to input_location when issuing warnings. 2018-08-15 David Malcolm * call.c: Include "gcc-rich-location.h". (convert_like_real): Add range label for "invalid conversion" diagnostic. (perform_implicit_conversion_flags): Add type label to the "could not convert" error. * error.c: Include "gcc-rich-location.h". (range_label_for_type_mismatch::get_text): New function. * typeck.c (convert_for_assignment): Add type label to the "cannot convert" error if a location is available. 2018-08-15 Paolo Carlini * decl.c (check_previous_goto_1): When decl_jump_unsafe returns 2 emit an error instead of a permerror. 2018-08-13 Marek Polacek PR c++/57891 * call.c (struct conversion): Add check_narrowing_const_only. (build_converted_constant_expr): Set check_narrowing and check_narrowing_const_only. Give error if expr is error node. (convert_like_real): Pass it to check_narrowing. * cp-tree.h (check_narrowing): Add a default parameter. * decl.c (compute_array_index_type): Use input_location instead of location_of. * pt.c (convert_nontype_argument): Return NULL_TREE if tf_error. * typeck2.c (check_narrowing): Don't warn for instantiation-dependent expressions. Call maybe_constant_value instead of fold_non_dependent_expr. Don't mention { } in diagnostic. Only check narrowing for constants if CONST_ONLY. 2018-08-13 Martin Sebor PR tree-optimization/71625 * decl.c (check_initializer): Call braced_list_to_string. (eval_check_narrowing): New function. * gcc/cp/typeck2.c (digest_init_r): Accept strings literals as initilizers for all narrow character types. 2018-08-13 Marek Polacek P0806R2 - Deprecate implicit capture of this via [=] * lambda.c (add_default_capture): Formatting fixes. Warn about deprecated implicit capture of this via [=]. PR c++/86915 * decl.c (create_array_type_for_decl): Handle null name. 2018-08-10 Jason Merrill PR c++/86728 - C variadic generic lambda. * parser.c (cp_parser_parameter_declaration): Don't turn 'auto' into a pack if it's followed by a declarator-id. 2018-08-08 Jakub Jelinek P0595R1 - is_constant_evaluated * cp-tree.h (enum cp_built_in_function): New. (maybe_constant_init): Add pretend_const_required argument. * typeck2.c (store_init_value): Pass true as new argument to maybe_constant_init. * constexpr.c (constexpr_fn_retval): Check also DECL_BUILT_IN_CLASS for BUILT_IN_UNREACHABLE. (struct constexpr_ctx): Add pretend_const_required field. (cxx_eval_builtin_function_call): Use DECL_IS_BUILTIN_CONSTANT_P macro. Handle CP_BUILT_IN_IS_CONSTANT_EVALUATED. Check also DECL_BUILT_IN_CLASS for BUILT_IN_UNREACHABLE. (cxx_eval_outermost_constant_expr): Add pretend_const_required argument, initialize pretend_const_required field in ctx. If the result is TREE_CONSTANT and non_constant_p, retry with pretend_const_required false if it was true. (is_sub_constant_expr): Initialize pretend_const_required_field in ctx. (cxx_constant_value): Pass true as pretend_const_required to cxx_eval_outermost_constant_expr. (maybe_constant_value): Pass false as pretend_const_required to cxx_eval_outermost_constant_expr. (fold_non_dependent_expr): Likewise. (maybe_constant_init_1): Add pretend_const_required argument, pass it down to cxx_eval_outermost_constant_expr. Pass !allow_non_constant instead of false as strict to cxx_eval_outermost_constant_expr. (maybe_constant_init): Add pretend_const_required argument, pass it down to maybe_constant_init_1. (cxx_constant_init): Pass true as pretend_const_required to maybe_constant_init_1. * cp-gimplify.c (cp_gimplify_expr): Handle CALL_EXPRs to CP_BUILT_IN_IS_CONSTANT_EVALUATED. (cp_fold): Don't fold CP_BUILT_IN_IS_CONSTANT_EVALUATED calls. * decl.c: Include langhooks.h. (cxx_init_decl_processing): Register __builtin_is_constant_evaluated built-in. * tree.c (builtin_valid_in_constant_expr_p): Return true for CP_BUILT_IN_IS_CONSTANT_EVALUATED. * pt.c (declare_integer_pack): Initialize DECL_FUNCTION_CODE. PR c++/86836 * pt.c (tsubst_expr): For structured bindings, call tsubst_decomp_names before tsubst_init, not after it. PR c++/86738 * constexpr.c (cxx_eval_binary_expression): For arithmetics involving NULL pointer set *non_constant_p to true. (cxx_eval_component_reference): For dereferencing of a NULL pointer, set *non_constant_p to true and return t. 2018-08-07 Paolo Carlini PR c++/59480, DR 136 * decl.c (check_no_redeclaration_friend_default_args): New. (duplicate_decls): Use the latter; also check that a friend declaration specifying default arguments is a definition. 2018-08-07 Ville Voutilainen PR c++/79133 * name-lookup.c (check_local_shadow): Reject captures and parameters with the same name. 2018-08-06 Marek Polacek PR c++/86767 * constexpr.c (cxx_eval_statement_list): Handle continue. 2018-08-03 David Malcolm Jonathan Wakely * decl.c: Include "gcc-rich-location.h". (add_return_star_this_fixit): New function. (finish_function): When warning about missing return statements in functions returning non-void, add a "return *this;" fix-it hint for assignment operators. 2018-08-03 Jason Merrill PR c++/86706 * class.c (build_base_path): Use currently_open_class. 2018-08-02 David Malcolm * error.c (cxx_print_error_function): Duplicate "file" before passing it to pp_set_prefix. (cp_print_error_function): Use pp_take_prefix when saving the existing prefix. 2018-08-02 Richard Biener PR c++/86763 * class.c (layout_class_type): Copy TYPE_TYPELESS_STORAGE to the CLASSTYPE_AS_BASE. 2018-08-01 Martin Sebor PR tree-optimization/86650 * error.c (cp_printer): Move usage of EXPR_LOCATION (t) and TREE_BLOCK (t) from within percent_K_format to this callsite. 2018-08-01 Paolo Carlini PR c++/86661 * class.c (note_name_declared_in_class): Use location_of in permerror instead of DECL_SOURCE_LOCATION (for OVERLOADs). 2018-07-31 Tom de Vries PR debug/86687 * optimize.c (update_cloned_parm): Copy DECL_BY_REFERENCE. 2018-07-31 Jakub Jelinek P1008R1 - prohibit aggregates with user-declared constructors * class.c (check_bases_and_members): For C++2a set CLASSTYPE_NON_AGGREGATE based on TYPE_HAS_USER_CONSTRUCTOR rather than type_has_user_provided_or_explicit_constructor. 2018-07-31 Martin Liska PR c++/86653 * parser.c (cp_parser_condition): Initialize non_constant_p to false. 2018-07-28 David Malcolm * error.c (cp_printer): In the leading comment, move "%H" and "%I" into alphabetical order, and add missing "%G" and "%K". Within the switch statement, move cases 'G', 'H', 'I' and 'K' so that the cases are in alphabetical order. 2018-07-25 Jakub Jelinek * cp-tree.h (enum cp_tree_index): Add CPTI_{ABI_TAG,ALIGNED,BEGIN,END,GET,TUPLE_{ELEMENT,SIZE}}_IDENTIFIER and CPTI_{GNU,TYPE,VALUE,FUN,CLOSURE}_IDENTIFIER. (abi_tag_identifier, aligned_identifier, begin_identifier, end_identifier, get__identifier, gnu_identifier, tuple_element_identifier, tuple_size_identifier, type_identifier, value_identifier, fun_identifier, closure_identifier): Define. * decl.c (initialize_predefined_identifiers): Initialize the above identifiers. (get_tuple_size): Use tuple_size_identifier instead of get_identifier ("tuple_size") and value_identifier instead of get_identifier ("value"). (get_tuple_element_type): Use tuple_element_identifier instead of get_identifier ("tuple_element") and type_identifier instead of get_identifier ("type"). (get_tuple_decomp_init): Use get__identifier instead of get_identifier ("get"). * lambda.c (maybe_add_lambda_conv_op): Use fun_identifier instead of get_identifier ("_FUN"). * parser.c (cp_parser_lambda_declarator_opt): Use closure_identifier instead of get_identifier ("__closure"). (cp_parser_std_attribute): Use gnu_identifier instead of get_identifier ("gnu"). (cp_parser_std_attribute_spec): Likewise. Use aligned_identifier instead of get_identifier ("aligned"). * class.c (check_abi_tags, inherit_targ_abi_tags): Use abi_tag_identifier instead of get_identifier ("abi_tag"). PR c++/85515 * cp-tree.h (enum cp_tree_index): Add CPTI_FOR_{RANGE,BEGIN,END}{,_}_IDENTIFIER. (for_range__identifier, for_begin__identifier, for_end__identifier, for_range_identifier, for_begin_identifier, for_end_identifier): Define. * decl.c (initialize_predefined_identifiers): Initialize for_{range,begin,end}{,_}_identifier. * parser.c (build_range_temp): Use for_range__identifier instead of get_identifier ("__for_range"). (cp_convert_range_for): Use for_begin__identifier and for_end__identifier instead of get_identifier ("__for_begin") and get_identifier ("__for_end"). * semantics.c (finish_for_stmt): Rename "__for_{range,begin,end} " local symbols to "__for_{range,begin,end}". 2018-07-23 Jakub Jelinek PR c++/86569 * cp-gimplify.c (cp_fold): Don't fold comparisons into other kind of expressions other than INTEGER_CST regardless of TREE_NO_WARNING or warn_nonnull_compare. 2018-07-19 Paolo Carlini Revert fix for c++/59480 (and testsuite followup) 2019-07-18 Paolo Carlini PR c++/59480, DR 136 * decl.c (check_no_redeclaration_friend_default_args): New. (duplicate_decls): Use the latter; also check that a friend declaration specifying default arguments is a definition. 2018-07-18 Jakub Jelinek PR c++/86550 * parser.c (cp_parser_decl_specifier_seq): Diagnose invalid type specifier if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR. 2018-07-18 Marek Polacek PR c++/86190 - bogus -Wsign-conversion warning * typeck.c (cp_build_binary_op): Fix formatting. Add a warning sentinel. 2018-07-18 Paolo Carlini PR c++/59480, DR 136 * decl.c (check_no_redeclaration_friend_default_args): New. (duplicate_decls): Use the latter; also check that a friend declaration specifying default arguments is a definition. 2018-07-18 Paolo Carlini * class.c (note_name_declared_in_class): Prefer permerror + inform to a pair of permerrors; use DECL_SOURCE_LOCATION. 2018-07-18 Richard Biener PR debug/86523 * decl2.c (c_parse_final_cleanups): Call write_out_vars before start_static_storage_duration_function sets current_function_decl. 2018-07-17 Jason Merrill PR c++/86480 - nested variadic lambda and constexpr if. * pt.c (find_parameter_packs_r) [IF_STMT]: Don't walk into IF_STMT_EXTRA_ARGS. * tree.c (cp_walk_subtrees) [DECLTYPE_TYPE]: Set cp_unevaluated_operand. [ALIGNOF_EXPR] [SIZEOF_EXPR] [NOEXCEPT_EXPR]: Likewise. 2018-07-16 Paolo Carlini * class.c (resolve_address_of_overloaded_function): Don't emit an inform if the matching permerror returns false. * pt.c (check_specialization_namespace): Likewise. 2018-07-16 Jakub Jelinek PR c++/3698 PR c++/86208 * cp-gimplify.c (cp_genericize_r): When using extern_decl_map, or in TREE_USED flag from stmt to h->to. 2018-07-13 Nathan Sidwell PR c++/86374 * pt.c (lookup_template_class_1): Use tsubst_aggr_type for contexts that are classes. * parser.c (cp_parser_template_id): Combine entering_scope decl & initializer. 2018-07-12 Jakub Jelinek * decl2.c (cplus_decl_attributes): Don't diagnose vars without mappable type here, instead add "omp declare target implicit" attribute. Add that attribute instead of "omp declare target" also when processing_template_decl. * decl.c (cp_finish_decl): Diagnose vars without mappable type here, and before calling cp_omp_mappable_type call complete_type. 2018-07-10 Jakub Jelinek PR sanitizer/86406 * cp-gimplify.c (cp_maybe_instrument_return): Skip trailing DEBUG_BEGIN_STMTs. PR c++/86443 * semantics.c (handle_omp_for_class_iterator): Remove lastp argument, instead of setting *lastp turn orig_declv elt into a TREE_LIST. (finish_omp_for): Adjust handle_omp_for_class_iterator caller. * pt.c (tsubst_omp_for_iterator): Allow OMP_FOR_ORIG_DECLS to contain TREE_LIST for both the original class iterator and the "last" helper var. 2018-07-09 Paolo Carlini * decl.c (grokdeclarator): Use rich_location::add_range in three more places; include gcc-rich-location.h. 2018-07-07 Aldy Hernandez * decl.c (build_enumerator): Change overflow type to overflow_type. * init.c (build_new_1): Same. 2018-07-05 Nathan Sidwell * cp/decl.c (decls_match): Check SYSTEM_IMPLICIT_EXTERN_C not NO_IMPLICIT_EXTERN_C. * cp/parser.c (cp_parser_parameter_declaration_clause): Likewise. 2018-07-04 Ville Voutilainen PR c++/86398 * method.c (is_trivially_xible): Return false if is_xible_helper returns a NULL_TREE. 2018-07-03 Paolo Carlini * decl.c (min_location): New. (smallest_type_quals_location): Use the latter. (check_concept_fn): Use DECL_SOURCE_LOCATION. (grokdeclarator): Use accurate locations in a number of error messages involving ds_thread, ds_storage_class, ds_virtual, ds_constexpr, ds_typedef and ds_friend; exploit min_location. 2018-07-03 Marek Polacek PR c++/86201 * typeck.c (cp_build_binary_op): Check c_inhibit_evaluation_warnings. 2018-07-03 Jason Merrill PR c++/86378 - functional cast in noexcept-specifier. * tree.c (strip_typedefs_expr) [TREE_LIST]: Fix iteration. 2018-07-02 Paolo Carlini * parser.c (set_and_check_decl_spec_loc): Use rich_location::add_range in error message about __thread and thread_local at the same time. 2018-06-29 Marek Polacek PR c++/86184 * tree.c (cp_save_expr): Don't call save_expr for TARGET_EXPRs. 2018-06-28 David Malcolm * parser.c (cp_parser_error_1): After issuing a conflict marker error, consume tokens until the end of the source line. 2018-06-28 Jason Merrill PR c++/86342 - -Wdeprecated-copy and system headers. * decl2.c (cp_warn_deprecated_use): Don't warn about declarations in system headers. 2018-06-27 David Malcolm PR c++/86329 * name-lookup.c (consider_binding_level): Filter out names that match anon_aggrname_p. 2018-06-27 Jason Merrill * name-lookup.c (do_pushtag): If we skip a class level, also skip its template level. 2018-06-26 Jason Merrill PR c++/86320 - memory-hog with std::array of pair * typeck2.c (process_init_constructor_array): Only compute a constant initializer once. PR c++/80290 - memory-hog with std::pair. * pt.c (fn_type_unification): Add convs parameter. (check_non_deducible_conversion): Remember conversion. (check_non_deducible_conversions): New. Do checks here. (type_unification_real): Not here. Remove flags parm. * call.c (add_function_candidate): Make convs a parameter. Don't recalculate the conversion if it's already set. (add_template_candidate_real): Allocate convs here. (good_conversion, conv_flags): New. 2018-06-26 Jakub Jelinek PR c++/86291 * parser.c (cp_parser_omp_for_loop_init): Change for_block argument type from vec * to vec *&. 2018-06-23 Paolo Carlini * decl.c (bad_specifiers): Add const location_t* parameter and use locations in error messages about 'inline' and 'virtual'. (mark_inline_variable): Add location_t parameter and use it in error_at and pedwarn messages. (grokdeclarator): Use declspecs->locations[ds_constexpr], declspecs->locations[ds_concept], declspecs->locations[ds_virtual], declspecs->locations[ds_inline] in many error messages; adjust bad_specifiers and mark_inline_variable calls. (grokvardecl): Use declspecs->locations[ds_concept] in error message. 2018-06-22 Jason Merrill PR c++/86219 - ICE with erroneous initializer in template. * constexpr.c (fold_non_dependent_expr): Add complain parm. * call.c, expr.c, init.c, pt.c, semantics.c, typeck.c, typeck2.c: Pass it. * call.c (build_cxx_call): Don't mess with builtins in a template. * typeck2.c (store_init_value): If fold_non_dependent_expr didn't produce a constant value, go back to the uninstantiated form. Avoid taking the address of something just because it's in parens. * constexpr.c (same_type_ignoring_tlq_and_bounds_p): New. (cxx_fold_indirect_ref): Use it. (cxx_eval_constant_expression) [VIEW_CONVERT_EXPR]: Use it. * cp-tree.h (REF_PARENTHESIZED_P): Allow VIEW_CONVERT_EXPR. * semantics.c (force_paren_expr): Use VIEW_CONVERT_EXPR instead of static_cast to reference type. (maybe_undo_parenthesized_ref): Handle VIEW_CONVERT_EXPR. 2018-06-21 Jason Merrill * pt.c (tsubst) [TEMPLATE_TYPE_PARM]: Use TEMPLATE_PARM_DESCENDANTS. * name-lookup.c (do_push_to_top_level): Don't allocate current_lang_base. (do_pop_from_top_level): Release current_lang_base. Let -fmem-report see callers of cxx_make_type. * lex.c (cxx_make_type): Add MEM_STAT_DECL. (make_class_type): Likewise. (cxx_make_type_hook): New. * cp-objcp-common.h (LANG_HOOKS_MAKE_TYPE): Use cxx_make_type_hook. 2018-06-20 Nathan Sidwell PR c++/85634 * friend.c (add_friend): Keep lookup sets of tempate sets. 2018-06-20 Paolo Carlini * decl.c (grokfndecl): Add const cp_decl_specifier_seq* parameter; tidy handling of a null location_t argument; use proper location information in a few additional error messages. (grokdeclarator): Update calls. 2018-06-20 Chung-Lin Tang Thomas Schwinge Cesar Philippidis * parser.c (cp_parser_omp_clause_name): Add support for finalize and if_present. Make present_or_{copy,copyin,copyout,create} aliases to their non-present_or_* counterparts. Make 'self' an alias to PRAGMA_OACC_CLAUSE_HOST. (cp_parser_oacc_data_clause): Update GOMP mappings for PRAGMA_OACC_CLAUSE_{COPY,COPYIN,COPYOUT,CREATE,DELETE}. Remove PRAGMA_OACC_CLAUSE_{SELF,PRESENT_OR_*}. (cp_parser_oacc_all_clauses): Handle finalize and if_present clauses. Remove support for present_or_* clauses. (OACC_KERNELS_CLAUSE_MASK): Remove PRESENT_OR_* clauses. (OACC_PARALLEL_CLAUSE_MASK): Likewise. (OACC_DECLARE_CLAUSE_MASK): Likewise. (OACC_DATA_CLAUSE_MASK): Likewise. (OACC_ENTER_DATA_CLAUSE_MASK): Remove PRESENT_OR_* clauses. (OACC_EXIT_DATA_CLAUSE_MASK): Add FINALIZE clause. (OACC_UPDATE_CLAUSE_MASK): Remove SELF, add IF_PRESENT. (cp_parser_oacc_declare): Remove PRESENT_OR_* clauses. * pt.c (tsubst_omp_clauses): Handle IF_PRESENT and FINALIZE. * semantics.c (finish_omp_clauses): Handle IF_PRESENT and FINALIZE. 2018-06-20 Marek Polacek PR c++/86240 * constexpr.c (cxx_eval_constant_expression): Handle ABSU_EXPR. (fold_simple_1): Likewise. * error.c (dump_expr): Likewise. 2018-06-20 Nathan Sidwell PR c++/85634 * cp-tree.h (lookup_keep): Drop KEEP parm. (lookup_list_keep): Delete. (maybe_get_fns): Declare. * parser.c (cp_parser_primary_expression): Call lookup_keep here. (cp_parser_template_id): Not here ... * decl.c (cp_finish_decl): ... nor here ... * init.c (build_raw_new_expr): ... nor here ... * pt.c (process_template_parm): ... nor here ... * semantics.c (perform_koenig_lookup): Call lookup_keep. (finish_call_expr): Not here. * tree.c (ovl_cache): Delete. (ovl_make, ovl_copy): No cache. (lookup_keep): Always keep. (lookup_list_keep): Delete. (maybe_get_fns): New, broken out of ... (get_fns): ... here. Call it. (built_min_nt_loc, build_min, build_min_non_dep): Drop lookup_keep. (build_min_nt_call_vec): Likewise. 2018-06-19 Jason Merrill * cp-tree.h (CONSTRUCTOR_NO_IMPLICIT_ZERO): Remove. * constexpr.c: Use CONSTRUCTOR_NO_CLEARING instead. PR c++/86182 - ICE with anonymous union passed to template. * pt.c (tsubst_expr) [DECL_EXPR]: Handle an anonymous union type used to declare a named variable. 2018-06-18 Jason Merrill * tree.c (cp_expr_location): New. * cp-tree.h (cp_expr_loc_or_loc): New. * call.c, cvt.c, constexpr.c, constraint.cc, cp-gimplify.c, decl.c, error.c, init.c, lex.c, parser.c, pt.c, semantics.c, typeck.c, typeck2.c: Use it instead of EXPR_LOC_OR_LOC. * parser.c (cp_parser_lambda_expression): Use a range for LAMBDA_EXPR_LOCATION. PR c++/86200 - ICE with unexpanded pack in lambda parameter. * pt.c (find_parameter_packs_r) [LAMBDA_EXPR]: Also look into the function type. PR c++/81060 - ICE with unexpanded parameter pack. * pt.c (check_for_bare_parameter_packs): Add loc parameter. * decl.c (grokdeclarator): Call it for qualifying_scope. PR c++/86171 - ICE with recursive alias instantiation. * pt.c (tsubst_decl): Handle recursive alias instantiation. 2018-06-18 Paolo Carlini * decl.c (duplicate_decls): Consistently use DECL_SOURCE_LOCATION in errors about redefined default arguments; tidy. 2018-06-16 Kugan Vivekanandarajah * constexpr.c (potential_constant_expression_1): Handle ABSU_EXPR. * cp-gimplify.c (cp_fold): Likewise. 2018-06-15 Jason Merrill PR c++/86147 - wrong capture for template argument. * expr.c (mark_use): Look through NOP_EXPR. * name-lookup.c (do_pushtag): Don't look through complete types, but don't add to them either. Get context from current_binding_level. * pt.c (tsubst_default_argument): Use push_to/pop_from_top_level. * decl.c (start_enum): Do compare dependent underlying type. PR c++/82882 - ICE with lambda in template default argument. * lambda.c (record_null_lambda_scope): New. * pt.c (tsubst_lambda_expr): Use it. * name-lookup.c (do_pushtag): Don't give a lambda DECL_CONTEXT of a function that isn't open. * tree.c (maybe_warn_parm_abi): Inform the location of the class. 2018-06-14 Marek Polacek PR c++/86063 * decl2.c (cp_check_const_attributes): Skip trees that are not TREE_LISTs. 2018-06-14 Jakub Jelinek P0624R2 - Default constructible and assignable stateless lambdas * method.c (synthesized_method_walk): For C++2a don't mark sfk_constructor or sfk_copy_assignment as deleted if lambda has no lambda-captures. 2018-06-14 Paolo Carlini * decl.c (duplicate_decls): Use DECL_SOURCE_LOCATION in OPT_Wshadow warning_at. (grokfndecl): Consistently use the location_t argument in literal operator diagnostic messages. (grokdeclarator): Use declspecs->locations[ds_storage_class] in error_at call. * decl2.c (finish_static_data_member_decl): Use DECL_SOURCE_LOCATION in permerror call. 2018-06-13 Jason Merrill PR c++/86099 - ICE with trivial copy and non-trivial default ctor. * constexpr.c (instantiate_cx_fn_r): Don't synthesize trivial constructors. PR c++/86094 - wrong code with defaulted move ctor. * class.c (classtype_has_non_deleted_move_ctor): New. * tree.c (maybe_warn_parm_abi, type_has_nontrivial_copy_init): Handle v12 breakage. 2018-06-12 Jason Merrill PR c++/86098 - ICE with template placeholder for TTP. * typeck.c (structural_comptypes) [TEMPLATE_TYPE_PARM]: Check CLASS_PLACEHOLDER_TEMPLATE. 2018-06-12 Paolo Carlini * decl2.c (coerce_new_type, coerce_delete_type): Add location_t parameter and adjust error_at calls. * decl.c (grok_op_properties): Adjust calls. * cp-tree.h (oerce_new_type, coerce_delete_type): Adjust decls. 2018-06-12 Marek Polacek Core issue 1331 - const mismatch with defaulted copy constructor * class.c (check_bases_and_members): When checking a defaulted function, mark it as deleted rather than giving an error. 2018-06-11 Jason Merrill PR c++/85792 -Wctor-dtor-privacy and inherited constructor. * class.c (maybe_warn_about_overly_private_class): Handle inherited constructors. PR c++/85963 - -Wunused-but-set with ?: in template. * pt.c (tsubst_copy_and_build) [COND_EXPR]: Call mark_rvalue_use. 2018-06-11 Paolo Carlini * decl.c (grok_op_properties): Consistently use the location of the decl; remove special casing of POSTINCREMENT_EXPR and POSTDECREMENT_EXPR wrt default arguments. 2018-06-05 Jason Merrill * constexpr.c (cxx_eval_binary_expression): Special case comparison of pointers to members of the same union. 2018-06-11 Jason Merrill PR c++/86094 - wrong code with defaulted move ctor. * tree.c (type_has_nontrivial_copy_init): Fix move ctor handling. 2018-06-10 Paolo Carlini * decl.c (grokfndecl): Use the location_t argument in two more places. 2018-06-06 Marek Polacek PR c++/85977 * pt.c (unify): If ELTTYPE has no deducible template parms, skip deduction from the list elements. (type_unification_real): Check convertibility of list elements. 2018-06-06 Jason Merrill PR c++/86060 - ICE on range for with -std=c++98. * parser.c (cp_parser_init_statement): Don't clobber *decl after pedwarn. PR c++/85710 - ICE with -Wmemset-elt-size. * semantics.c (finish_call_expr): Call warn_for_memset here. * parser.c (cp_parser_postfix_expression): Not here. (literal_integer_zerop): No longer static. * pt.c (build_non_dependent_expr): Don't wrap CONST_DECL. 2018-06-05 Marek Polacek PR c++/85976 * tree.c (cp_tree_equal): Handle USING_DECL. 2018-06-05 Jason Merrill PR c++/85731 - wrong error with qualified-id in template. * semantics.c (finish_qualified_id_expr): build_qualified_name for unbound names in the current class. 2018-06-04 Jason Merrill PR c++/61806 - missed SFINAE with partial specialization. * cp-tree.h (deferring_access_check_sentinel): Add deferring_kind parameter to constructor. * pt.c (instantiate_class_template_1): Enable access checking before call to most_specialized_partial_spec. PR c++/85765 - SFINAE and non-type default template arg. * pt.c (type_unification_real): Do full semantic processing if substituting a partial args list replaces all template parms. 2018-06-03 Jason Merrill PR c++/85739 - ICE with pointer to member template parm. * cvt.c (perform_qualification_conversions): Use cp_fold_convert. 2018-06-02 Jason Merrill PR c++/85761 - ICE with ill-formed use of const outer variable. * expr.c (mark_use): Handle location wrappers. 2018-06-01 Jason Merrill PR c++/85764 - bogus 'this' not captured error. * lambda.c (resolvable_dummy_lambda): Use nonlambda_method_basetype. (nonlambda_method_basetype): Handle NSDMI. CWG 1581: When are constexpr member functions defined? * constexpr.c (instantiate_cx_fn_r, instantiate_constexpr_fns): New. (cxx_eval_outermost_constant_expr): Call instantiate_constexpr_fns. PR c++/58281 - explicit instantiation of constexpr * pt.c (mark_decl_instantiated): Clear DECL_EXTERNAL. * pt.c (instantiate_decl): Any defaulted function is defined. 2018-05-30 Jonathan Wakely PR c++/77777 * call.c (resolve_args): Use location of expression, not current input location. 2018-05-30 Ville Voutilainen Do not warn about zero-as-null when NULL is used. * call.c (conversion_null_warnings): Check for pointer types converted from zero constants. (convert_like_real): Add a warning sentinel at the end. * tree.c (maybe_warn_zero_as_null_pointer_constant): Also check null_node_p. 2018-05-30 Jason Merrill PR c++/85807 - ICE with call in template NSDMI. * init.c (get_nsdmi): Use push_to/pop_from_top_level. * tree.c (bot_manip): Don't set_flags_from_callee in a template. PR c++/85873 - constant initializer_list array not in .rodata. * tree.c (build_target_expr): Set TREE_READONLY. * call.c (set_up_extended_ref_temp): Set TREE_READONLY. * parser.c (cp_parser_check_condition_declarator): Handle cp_error_declarator. 2018-05-30 Jonathan Wakely * typeck.c (cxx_sizeof_or_alignof_type): Return size_one_node instead of using it in dead store. 2018-05-29 Jason Merrill PR c++/67445 - returning temporary initializer_list. PR c++/67711 - assigning from temporary initializer_list. PR c++/48562 - new initializer_list. * typeck.c (maybe_warn_about_returning_address_of_local): Also warn about returning local initializer_list. * cp-tree.h (AUTO_TEMP_NAME, TEMP_NAME_P): Remove. * call.c (build_over_call): Warn about assignment from temporary init_list. * init.c (build_new_1): Warn about 'new std::initializer_list'. (find_list_begin, maybe_warn_list_ctor): New. (perform_member_init): Use maybe_warn_list_ctor. 2018-05-29 Marek Polacek PR c++/85883 * init.c (build_new): Handle deducing a class with new with more than one argument. 2018-05-29 Jakub Jelinek PR c++/85952 * init.c (build_aggr_init): For structured binding initialized from array call mark_rvalue_use on the initializer. 2018-05-28 Bernd Edlinger * decl2.c (start_static_storage_duration_function): Use splay_tree_delete_pointers. 2018-05-25 Jason Merrill PR c++/85815 - reference to member of enclosing template. * search.c (lookup_base): Use currently_open_class. (lookup_member): Use it regardless of -fconcepts. * parser.c (cp_parser_postfix_dot_deref_expression): Check it. CWG 616, 1213 - value category of subobject references. * tree.c (lvalue_kind): Fix handling of ARRAY_REF of pointer. 2018-05-24 Jason Merrill PR c++/85842 - -Wreturn-type, constexpr if and generic lambda. * pt.c (tsubst_lambda_expr): Copy current_function_returns_* to generic lambda. 2018-05-24 Ville Voutilainen Pedwarn on a non-standard position of a C++ attribute. * parser.c (cp_parser_namespace_definition): Pedwarn about attributes after the namespace name. 2018-05-24 Paolo Carlini * cp-tree.h (INDIRECT_TYPE_P): New. * call.c (build_trivial_dtor_call, maybe_warn_class_memaccess, joust): Use it instead of POINTER_TYPE_P. * class.c (update_vtable_entry_for_fn, find_flexarrays, * fixed_type_or_null, resolves_to_fixed_type_p): Likewise. * constexpr.c (cxx_eval_binary_expression, cxx_fold_indirect_ref, * cxx_eval_increment_expression, potential_constant_expression_1): Likewise. * cp-gimplify.c (cp_gimplify_expr, cp_genericize_r): Likewise. * cp-objcp-common.c (cxx_get_alias_set): Likewise. * cp-ubsan.c (cp_ubsan_maybe_instrument_member_call, cp_ubsan_maybe_instrument_downcast): Likewise. * cvt.c (cp_convert_to_pointer, ocp_convert, cp_get_fndecl_from_callee, maybe_warn_nodiscard, convert): Likewise. * cxx-pretty-print.c (cxx_pretty_printer::abstract_declarator, pp_cxx_offsetof_expression_1): Likewise. * decl.c (grokparms, static_fn_type): Likewise. * decl2.c (grokbitfield): Likewise. * error.c (dump_expr): Likewise. * except.c (initialize_handler_parm, check_noexcept_r): Likewise. * init.c (warn_placement_new_too_small): Likewise. * lambda.c (build_capture_proxy, add_capture): Likewise. * parser.c (cp_parser_omp_for_loop): Likewise. * pt.c (convert_nontype_argument, fn_type_unification, uses_deducible_template_parms, check_cv_quals_for_unify, dependent_type_p_r): Likewise. * search.c (check_final_overrider): Likewise. * semantics.c (handle_omp_array_sections, finish_omp_clauses, finish_omp_for): Likewise. * tree.c (cp_build_qualified_type_real): Likewise. * typeck.c (build_class_member_access_expr, finish_class_member_access_expr, build_x_indirect_ref, cp_build_indirect_ref_1, cp_build_binary_op, build_const_cast_1): Likewise. 2018-05-24 Jason Merrill PR c++/85864 - literal template and default template arg. * pt.c (instantiation_dependent_r): Handle NONTYPE_ARGUMENT_PACK. 2018-05-24 Marek Polacek PR c++/85847 * init.c (build_new_1): Use fold_non_dependent_expr. Use a dedicated variable for its result. Fix a condition. (build_new): Use fold_non_dependent_expr. Tweak a condition. 2018-05-23 Jason Merrill Fix cast to rvalue reference from prvalue. * cvt.c (diagnose_ref_binding): Handle rvalue reference. * rtti.c (build_dynamic_cast_1): Don't try to build a reference to non-class type. Handle xvalue argument. * typeck.c (build_reinterpret_cast_1): Allow cast from prvalue to rvalue reference. * semantics.c (finish_compound_literal): Do direct-initialization, not cast, to initialize a reference. CWG 616, 1213 - value category of subobject references. * tree.c (lvalue_kind): A reference to a subobject of a prvalue is an xvalue. * typeck2.c (build_m_component_ref): Likewise. * typeck.c (cp_build_addr_expr_1, lvalue_or_else): Remove diagnostic distinction between temporary and xvalue. 2018-05-23 Marek Polacek Implement P0614R1, Range-based for statements with initializer. * parser.c (cp_parser_range_based_for_with_init_p): New. (cp_parser_init_statement): Use it. Parse the optional init-statement for a range-based for loop. (cp_parser_skip_to_closing_parenthesis_1): Handle balancing ?:. 2018-05-22 Jason Merrill PR c++/81420 - not extending temporary lifetime. * call.c (extend_ref_init_temps_1): Handle ARRAY_REF. * class.c (build_base_path): Avoid redundant move of an rvalue. PR c++/85866 - error with .* in default template arg. * pt.c (tsubst_copy_and_build): Handle partial instantiation. 2018-05-21 Paolo Carlini * parser.c (cp_parser_parameter_declaration_list): Remove bool* parameter. (cp_parser_parameter_declaration_clause): Adjust. (cp_parser_cache_defarg): Likewise. 2018-05-21 Paolo Carlini PR c++/84588 * parser.c (cp_parser_maybe_commit_to_declaration, cp_parser_check_condition_declarator): New. (cp_parser_simple_declaration): Use the first above. (cp_parser_condition): Use both the above; enforce [stmt.stmt]/2 about the declarator not specifying a function or an array; improve error-recovery. 2018-05-20 Jason Merrill PR libstdc++/85843 - warning in logic_error copy constructor. * class.c (type_has_user_nondefault_constructor): Check for a user-provided ctor, not user-declared. 2018-05-19 Jason Merrill * pt.c (tsubst_pack_expansion): Sorry rather than abort on __integer_pack as subexpression of pattern. 2018-05-18 Jason Merrill PR c++/58407 - deprecated implicit copy ops. * call.c (build_over_call): Warn about deprecated trivial fns. * class.c (classtype_has_user_copy_or_dtor): New. (type_build_ctor_call): Check TREE_DEPRECATED. (type_build_dtor_call): Likewise. * decl2.c (cp_warn_deprecated_use): Move from tree.c. Add checks. Return bool. Handle -Wdeprecated-copy. (mark_used): Use it. * decl.c (grokdeclarator): Remove redundant checks. * typeck2.c (build_functional_cast): Likewise. * method.c (lazily_declare_fn): Mark deprecated copy ops. * init.c (build_aggr_init): Only set TREE_USED if there are side-effects. 2018-05-18 Cesar Philippidis PR c++/85782 * cp-gimplify.c (cp_genericize_r): Call genericize_omp_for_stmt for OACC_LOOPs. 2018-05-18 Richard Sandiford * constexpr.c (cxx_eval_constant_expression): Remove FMA_EXPR handling. (potential_constant_expression_1): Likewise. 2018-05-16 Marek Polacek PR c++/85363 * call.c (set_flags_from_callee): Handle AGGR_INIT_EXPRs too. * tree.c (bot_manip): Call set_flags_from_callee for AGGR_INIT_EXPRs too. 2018-05-15 Jason Merrill * cp-tree.h (cp_expr): Remove copy constructor. * mangle.c (struct releasing_vec): Declare copy constructor. * constexpr.c (cxx_eval_vec_init_1): Pass tf_none if ctx->quiet. PR c++/64372 - CWG 1560, gratuitous lvalue-rvalue conversion in ?: * call.c (build_conditional_expr_1): Don't force_rvalue when one arm is a throw-expression. 2018-05-15 Paolo Carlini * cp-tree.h (DECL_MAYBE_IN_CHARGE_CDTOR_P): New. (FOR_EACH_CLONE): Update. * decl.c (grokdeclarator): Use it. * decl2.c (vague_linkage_p): Likewise. * mangle.c (mangle_decl): Likewise. * method.c (lazily_declare_fn): Likewise. * optimize.c (can_alias_cdtor, maybe_clone_body): Likewise. * repo.c (repo_emit_p): Likewise. * tree.c (decl_linkage): Likewise. 2018-05-14 Jason Merrill Handle TYPE_HAS_LATE_RETURN_TYPE like ref-qualifier and eh spec. * tree.c (build_cp_fntype_variant): New. (build_ref_qualified_type, build_exception_variant) (strip_typedefs, cxx_copy_lang_qualifiers): Use it. (cxx_type_hash_eq, cp_check_qualified_type): Check TYPE_HAS_LATE_RETURN_TYPE. (cp_build_type_attribute_variant): Check cxx_type_hash_eq. (cp_build_qualified_type_real): No need to preserve C++ qualifiers. * class.c (build_clone): Use cxx_copy_lang_qualifiers. (adjust_clone_args): Likewise. * decl.c (grokfndecl): Add late_return_type_p parameter. Use build_cp_fntype_variant. (grokdeclarator): Pass late_return_type_p to grokfndecl. (check_function_type): Use cxx_copy_lang_qualifiers. (static_fn_type): Use cxx_copy_lang_qualifiers. * decl2.c (build_memfn_type, maybe_retrofit_in_chrg) (cp_reconstruct_complex_type, coerce_new_type, coerce_delete_type) (change_return_type): Use cxx_copy_lang_qualifiers. * mangle.c (write_type): Use cxx_copy_lang_qualifiers. * parser.c (cp_parser_lambda_declarator_opt): Represent an explicit return type on the declarator like a normal trailing return type. * pt.c (tsubst_function_type): Use build_cp_fntype_variant. (copy_default_args_to_explicit_spec): Use cxx_copy_lang_qualifiers. * typeck.c (merge_types): Use build_cp_fntype_variant. 2018-05-14 Paolo Carlini * cp-tree.h (TYPE_REF_P): New. (TYPE_OBJ_P, TYPE_REF_OBJ_P, TYPE_REFFN_P): Update. * call.c (build_list_conv, build_aggr_conv, standard_conversion, direct_reference_binding, reference_binding, implicit_conversion, add_builtin_candidate, build_user_type_conversion_1, build_op_call_1, build_new_op_1, build_x_va_arg, conv_binds_ref_to_prvalue, build_over_call, perform_implicit_conversion_flags, extend_ref_init_temps, type_has_extended_temps): Use it. * class.c (one_inheriting_sig, check_field_decls, check_bases_and_members, find_flexarrays, finish_struct, fixed_type_or_null): Likewise. * constexpr.c (literal_type_p, cxx_bind_parameters_in_call, non_const_var_error, cxx_eval_constant_expression, potential_constant_expression_1): Likewise. * cp-gimplify.c (omp_var_to_track, omp_cxx_notice_variable, cp_genericize_r, cxx_omp_privatize_by_reference, cxx_omp_const_qual_no_mutable, cxx_omp_finish_clause, cp_fold_maybe_rvalue): Likewise. * cp-ubsan.c (cp_ubsan_maybe_instrument_downcast): Likewise. * cvt.c (build_up_reference, convert_to_reference, convert_from_reference, convert_to_void, noexcept_conv_p, fnptr_conv_p): Likewise. * decl.c (poplevel, check_for_uninitialized_const_var, check_initializer, initialize_local_var, cp_finish_decl, get_tuple_decomp_init, cp_finish_decomp, grokdeclarator, copy_fn_p, move_signature_fn_p, grok_op_properties, finish_function): Likewise. * decl2.c (grok_array_decl, cp_reconstruct_complex_type, decl_maybe_constant_var_p): Likewise. * error.c (dump_type_prefix, dump_expr): Likewise. * except.c (initialize_handler_parm, complete_ptr_ref_or_void_ptr_p, is_admissible_throw_operand_or_catch_parameter): Likewise. * expr.c (mark_use): Likewise. * init.c (build_zero_init_1, build_value_init_noctor, perform_member_init, diagnose_uninitialized_cst_or_ref_member_1, build_new, build_delete): Likewise. * lambda.c (build_lambda_object): Likewise. * mangle.c (write_expression, write_template_arg): Likewise. * method.c (forward_parm, do_build_copy_constructor, do_build_copy_assign, build_stub_object, constructible_expr, walk_field_subobs): Likewise. * parser.c (cp_parser_omp_for_loop_init, cp_parser_omp_declare_reduction_exprs, cp_parser_omp_declare_reduction): Likewise. * pt.c (convert_nontype_argument_function, convert_nontype_argument, convert_template_argument, tsubst_pack_expansion, tsubst_function_decl, tsubst_decl, tsubst, tsubst_copy_and_build, maybe_adjust_types_for_deduction, check_cv_quals_for_unify, unify, more_specialized_fn, invalid_nontype_parm_type_p, dependent_type_p_r, value_dependent_expression_p, build_deduction_guide): Likewise. * semantics.c (finish_handler_parms, finish_non_static_data_member, finish_compound_literal, omp_privatize_field, handle_omp_array_sections_1, handle_omp_array_sections, cp_check_omp_declare_reduction, finish_omp_reduction_clause, finish_omp_declare_simd_methods, cp_finish_omp_clause_depend_sink, finish_omp_clauses, finish_decltype_type, capture_decltype, finish_builtin_launder): Likewise. * tree.c (lvalue_kind, cp_build_reference_type, move, cp_build_qualified_type_real, stabilize_expr, stabilize_init): Likewise. * typeck.c (cxx_safe_arg_type_equiv_p, build_class_member_access_expr, cp_build_indirect_ref_1, convert_arguments, warn_for_null_address, cp_build_addr_expr_1, maybe_warn_about_useless_cast, build_static_cast_1, build_static_cast, build_reinterpret_cast_1, build_const_cast_1, cp_build_c_cast, cp_build_modify_expr, convert_for_initialization, maybe_warn_about_returning_address_of_local, check_return_expr, cp_type_quals, casts_away_constness, non_reference): Likewise. * typeck2.c (cxx_readonly_error, store_init_value, process_init_constructor_record, build_x_arrow, build_functional_cast, add_exception_specifier): Likewise. 2018-05-14 Jason Merrill * pt.c (tsubst) [ARRAY_TYPE]: Check valid_array_size_p. (tsubst_copy_and_build) [NEW_EXPR]: Clear in_decl. 2018-05-11 Jakub Jelinek PR c/85696 * cp-tree.h (cxx_omp_predetermined_sharing_1): New prototype. * cp-gimplify.c (cxx_omp_predetermined_sharing): New wrapper around cxx_omp_predetermined_sharing_1. Rename old function to ... (cxx_omp_predetermined_sharing_1): ... this. * semantics.c (finish_omp_clauses): Use cxx_omp_predetermined_sharing_1 instead of cxx_omp_predetermined_sharing. 2018-05-10 Jason Merrill * decl.c (cp_finish_decl): Don't instantiate auto variable. (check_static_variable_definition): Allow auto. * constexpr.c (ensure_literal_type_for_constexpr_object): Likewise. * cp-tree.h (DECL_CONSTRUCTOR_P): Use DECL_CXX_CONSTRUCTOR_P. (DECL_DESTRUCTOR_P): Use DECL_CXX_DESTRUCTOR_P. Core issue 2310 - conversion to base of incomplete type. * class.c (build_base_path): Check COMPLETE_TYPE_P for source type. CWG 2267 - list-initialization of reference temporary * call.c (reference_binding): List-initializing a reference temporary is copy-list-initialization. * parser.c (cp_parser_class_head): Use num_template_headers_for_class. * pt.c (instantiate_decl): Make sure we aren't trying to do a nested instantiation in template context. * class.c (vbase_has_user_provided_move_assign): Use user_provided_p. * lambda.c (lambda_expr_this_capture): Improve logic. * decl.c (make_typename_type): s/parameters/arguments/. * parser.c (cp_parser_nested_name_specifier_opt): Likewise. * pt.c (make_pack_expansion): Correct error message. 2018-05-10 Jakub Jelinek PR c++/85662 * cp-gimplify.c (cp_fold): Use fold_offsetof rather than fold_offsetof_1, pass TREE_TYPE (x) as TYPE to it and drop the fold_convert. 2018-05-10 Eric Botcazou PR c++/85400 * decl2.c (adjust_var_decl_tls_model): New static function. (comdat_linkage): Call it on a variable. (maybe_make_one_only): Likewise. 2018-05-09 Paolo Carlini PR c++/85713 Revert: 2018-05-08 Paolo Carlini PR c++/84588 * parser.c (cp_parser_parameter_declaration_list): When the entire parameter-declaration-list is erroneous maybe call abort_fully_implicit_template. 2018-05-08 Jason Merrill PR c++/85706 - class deduction under decltype * pt.c (for_each_template_parm_r): Handle DECLTYPE_TYPE. Clear *walk_subtrees whether or not we walked into the operand. (type_uses_auto): Only look at deduced contexts. 2018-05-08 Paolo Carlini PR c++/84588 * parser.c (cp_parser_parameter_declaration_list): When the entire parameter-declaration-list is erroneous maybe call abort_fully_implicit_template. 2018-05-08 Marek Polacek PR c++/85695 * semantics.c (finish_if_stmt_cond): See through typedefs. 2018-05-07 Jason Merrill PR c++/85646 - lambda visibility. * decl2.c (determine_visibility): Don't mess with template arguments from the containing scope. (vague_linkage_p): Check DECL_ABSTRACT_P before looking at a 'tor thunk. 2018-05-07 Nathan Sidwell Remove fno-for-scope * cp-tree.h (DECL_ERROR_REPORTED, DECL_DEAD_FOR_LOCAL) (DECL_HAS_SHADOWED_FOR_VAR_P, DECL_SHADOWED_FOR_VAR) (SET_DECL_SHADOWED_FOR_VAR): Delete. (decl_shadowed_for_var_lookup, decl_shadowed_for_var_insert) (check_for_out_of_scope_variable, init_shadowed_var_for_decl): Don't declare. * name-lookup.h (struct cp_binding_level): Remove dead_vars_from_for field. * cp-lang.c (cp_init_ts): Delete. (LANG_HOOKS_INIT_TS): Override to cp_common_init_ts. * cp-objcp-common.c (shadowed_var_for_decl): Delete. (decl_shadowed_for_var_lookup, decl_shadowed_for_var_insert) (init_shadowed_var_for_decl): Delete. * decl.c (poplevel): Remove shadowed for var handling. (cxx_init_decl_processing): Remove -ffor-scope deprecation. * name-lookup.c (find_local_binding): Remove shadowed for var handling. (check_local_shadow): Likewise. (check_for_out_of_scope_variable): Delete. * parser.c (cp_parser_primary_expression): Remove shadowed for var handling. * pt.c (tsubst_decl): Remove DECL_DEAD_FOR_LOCAL setting. * semantics.c (begin_for_scope): Always have a scope. (begin_for_stmt, finish_for_stmt): Remove ARM-for scope handling. (begin_range_for_stmt, finish_id_expression): Likewise. 2018-05-07 Jason Merrill PR c++/85618 - ICE with initialized VLA. * tree.c (vla_type_p): New. * typeck2.c (store_init_value, split_nonconstant_init_1): Check it rather than array_of_runtime_bound_p. 2018-05-05 Paolo Carlini * cvt.c (ocp_convert): Early handle the special case of a null_ptr_cst_p expr converted to a NULLPTR_TYPE_P type. 2018-05-03 Jason Merrill PR c++/85600 - virtual delete failure. * init.c (build_delete): Always save_expr when deleting. 2018-05-03 Nathan Sidwell * decl.c (cxx_init_decl_processing): Remove flag_friend_injection. * name-lookup.c (do_pushdecl): Likewise. 2018-05-02 Paolo Carlini Jason Merrill PR c++/68374 * name-lookup.c (check_local_shadow): Don't handle static old declarations in the block handling locals shadowing locals. 2018-05-01 Jason Merrill PR c++/85587 - error with scoped enum in template. * semantics.c (finish_qualified_id_expr): Don't return an unqualified IDENTIFIER_NODE. 2018-04-30 Jason Merrill PR c++/85580 - extern "C" and local variables * name-lookup.c (check_extern_c_conflict): Ignore local decls. PR c++/84701 - unsigned typeof. * decl.c (grokdeclarator): Overhaul diagnostics for invalid use of long/short/signed/unsigned. PR c++/85305 - pack in lambda init-capture. * parser.c (cp_parser_initializer): Add subexpression_p parm; don't check_for_bare_parameter_packs in a subexpression. (cp_parser_lambda_introducer): Use it. PR c++/61982 - dead stores to destroyed objects. * call.c (build_trivial_dtor_call): New, assigns a clobber. (build_over_call, build_special_member_call): Use it. * cp-tree.h: Declare it. * init.c (build_delete): Remove trivial path. * init.c (build_dtor_call): Use build_special_member_call. (build_delete): Remove redundant uses of save_addr. * decl.c (build_clobber_this): Use build_clobber. 2018-04-27 Jakub Jelinek PR c++/85553 * init.c (build_zero_init_1): For zero initialization of NULLPTR_TYPE_P type use build_int_cst directly. 2018-04-27 David Malcolm PR c++/85515 * name-lookup.c (consider_binding_level): Skip compiler-generated variables. * search.c (lookup_field_fuzzy_info::fuzzy_lookup_field): Flatten nested if statements into a series of rejection tests. Reject lambda-ignored entities as suggestions. 2018-04-27 Jason Merrill * cvt.c (cp_fold_convert): Use convert_ptrmem. * typeck.c (convert_ptrmem): Add a NOP even if no adjustment. 2018-04-27 Paolo Carlini PR c++/84691 * decl.c (grokdeclarator): Clear friendp upon definition in local class definition error. 2018-04-27 Jason Merrill PR c++/85545 - ICE with noexcept PMF conversion. * cvt.c (cp_fold_convert): Pass PMF CONSTRUCTORs to build_ptrmemfunc. * typeck.c (build_ptrmemfunc): Don't build a NOP_EXPR for zero adjustment. (build_ptrmemfunc_access_expr): Special-case CONSTRUCTORs. 2018-04-27 Nathan Sidwell * typeck.c (convert_ptrmem): Move local var decls to initialization. * cp-tree.h (TEMPLATE_INFO): Fix comments. (TI_PENDING_TEMPLATE_FLAG): Check TEMPLATE_INFO. (NON_DEFAULT_TEMPLATE_ARG_COUNT): Wrap line. (dump, print_other_binding_stacks): Remove declarations. * name-lookup.c (print_other_binding_stack): Make static. * pt.c (build_template_decl): Make static. 2018-04-26 Jason Merrill PR c++/85545 - ICE with noexcept PMF conversion. * cvt.c (cp_fold_convert): Handle PMF CONSTRUCTORs directly. 2018-04-25 Nathan Sidwell PR c++/85437 PR c++/49171 * cp-tree.h (REINTERPRET_CAST_P): New. * constexpr.c (cxx_eval_constant_expression) : Reject REINTERPET_CAST_P conversions. Use cplus_expand_constant for non-trivial PTRMEM_CST cases. * typeck.c (build_nop_reinterpret): New. (build_reinterpret_cast_1): Use it. Set REINTERPRET_CAST_P on NOP_EXPRs returned by cp_convert. 2018-04-23 Jason Merrill PR c++/69560 - wrong alignof(double) on x86. CWG 1879 - Inadequate definition of alignment requirement. * cp-tree.h (ALIGNOF_EXPR_STD_P): New. * typeck.c (cxx_sizeof_or_alignof_type): Add std_alignof parm. (cxx_sizeof_expr, cxx_sizeof_nowarn, cxx_alignas_expr) (cxx_alignof_expr): Pass it. * parser.c (cp_parser_unary_expression): Pass it. * pt.c (tsubst_copy): Copy it. (tsubst_copy_and_build): Pass it. * decl.c (fold_sizeof_expr): Pass it. 2018-04-23 Jakub Jelinek Jason Merrill PR c++/85470 - wrong error with static data member. * decl.c (check_initializer): Check DECL_INITIALIZED_IN_CLASS_P. * typeck2.c (store_init_value): Likewise. 2018-04-20 Jakub Jelinek PR c++/85462 * cp-tree.h (tinst_level): Remove in_system_header_p member, change refcount member from unsigned char to unsigned short, add refcount_infinity static data member, adjust comments. * pt.c (tinst_level::refcount_infinity): Define. (inc_refcount_use): Remove assert, don't increment if refcount is already refcount_infinity, adjust comment. (dec_refcount_use): Remove assert, don't decrement if refcount is refcount_infinity, adjust comment. (push_tinst_level_loc): Formatting fix. 2018-04-19 Paolo Carlini PR c++/84611 * pt.c (lookup_template_class_1): Check pushtag return value for error_mark_node. 2018-04-19 Alexandre Oliva PR c++/80290 * cp-tree.h (tinst_level::free): Fix whitespace. 2018-04-18 Paolo Carlini PR c++/84630 * pt.c (tsubst_lambda_expr): Check begin_lambda_type return value for error_mark_node. 2018-04-18 Jakub Jelinek PR c++/84463 * typeck.c (cp_build_addr_expr_1): Move handling of offsetof-like tricks from here to ... * cp-gimplify.c (cp_fold) : ... here. Only use it if INDIRECT_REF's operand is INTEGER_CST cast to pointer type. 2018-04-18 Alexandre Oliva PR c++/80290 * cp-tree.h (struct tinst_level): Split decl into tldcl and targs. Add private split_list_p, tree_list_p, and not_list_p inline const predicates; to_list private member function declaration; free public member function declaration; list_p, get_node and maybe_get_node accessors, and refcount data member. Narrow errors to unsigned short. * error.c (print_instantiation_full_context): Use new accessors. (print_instantiation_partial_context_line): Likewise. Drop const from tinst_level-typed parameter. * mangle.c (mangle_decl_string): Likewise. * pt.c (freelist): New template class. (tree_list_freelist_head): New var. (tree_list_freelist): New fn, along with specializations. (tinst_level_freelist_head): New var. (pending_template_freelist_head): Likewise. (tinst_level_freelist, pending_template_freelist): New fns. (tinst_level::to_list, tinst_level::free): Define. (inc_refcount_use, dec_refcount_use): New fns for tinst_level. (set_refcount_ptr): New template fn. (add_pending_template): Adjust for refcounting, freelists and new accessors. (neglectable_inst_p): Take a NULL d as a non-DECL. (limit_bad_template_recursion): Use new accessors. (push_tinst_level): New overload to create the list. (push_tinst_level_loc): Make it static, split decl into two args, adjust tests and initialization to cope with split lists, use freelist, adjust for refcounting. (push_tinst_level_loc): New wrapper with the old interface. (pop_tinst_level): Adjust for refcounting. (record_last_problematic_instantiation): Likewise. (reopen_tinst_level): Likewise. Use new accessors. (instantiate_alias_template): Adjust for split list. (fn_type_unification): Likewise. (get_partial_spec_bindings): Likewise. (instantiate_pending_templates): Use new accessors. Adjust for refcount. Release pending_template to freelist. (instantiating_current_function_p): Use new accessors. 2018-04-16 Alexandre Oliva PR c++/85039 * parser.c (cp_parser_builtin_offset): Reject type definitions. * mangle.c (nested_anon_class_index): Avoid crash returning -1 if we've seen errors. 2018-04-12 David Malcolm PR c++/85385 * name-lookup.c (macro_use_before_def::maybe_make): New function, checking that the use is indeed before the definition. (macro_use_before_def::macro_use_before_def): Make private. (macro_use_before_def::~macro_use_before_def): Make private. Move check for UNKNOWN_LOCATION to macro_use_before_def::maybe_make. (lookup_name_fuzzy): Call macro_use_before_def::maybe_make rather than using new directly. 2018-04-12 Jason Merrill PR c++/85356 - ICE with pointer to member function. * pt.c (maybe_instantiate_noexcept): Do instantiate in templates if flag_noexcept_type. Build the new spec within the function context. * except.c (build_noexcept_spec): Do get constant value in templates if flag_noexcept_type. * decl.c (check_redeclaration_exception_specification): Don't instantiate noexcept on a dependent declaration. 2018-04-12 Marek Polacek PR c++/85258 * constexpr.c (reduced_constant_expression_p): Return false for null trees. 2018-04-11 Marek Polacek PR c++/85032 * constexpr.c (potential_constant_expression_1): Consider conversions from classes to literal types potentially constant. 2018-04-10 Paolo Carlini PR c++/70808 * init.c (build_zero_init_1): Handle NULLPTR_TYPE_P being true of the type like TYPE_PTR_OR_PTRMEM_P. 2018-04-10 Jason Merrill PR debug/65821 - wrong location for main(). * call.c (clear_location_r, convert_default_arg): Revert. * tree.c (break_out_target_exprs): Add clear_location parm. (struct bot_data): New. (bot_manip): Clear location if requested. * init.c (get_nsdmi): Pass clear_location. 2018-04-10 David Malcolm PR c++/85110 * call.c (get_fndecl_argument_location): Make non-static. * cp-tree.h (get_fndecl_argument_location): New decl. * typeck.c (convert_for_assignment): When complaining due to conversions for an argument, show the location of the parameter within the decl. 2018-04-10 Jakub Jelinek PR c++/85312 - P0962 cleanup * parser.c (cp_parser_perform_range_for_lookup): Remove unreachable diagnostics. 2018-04-10 Jason Merrill PR debug/65821 - wrong location for main(). * call.c (clear_location_r): New. (convert_default_arg): Use it. * tree.c (bot_manip): Remove builtin_LINE/FILE handling. PR c++/85285 - ICE with flexible array after substitution. * pt.c (instantiate_class_template_1): Check for flexible array in union. 2018-04-09 Paolo Carlini PR c++/85227 * decl.c (cp_finish_decomp): In a template, if the type is incomplete issue a pedwarn and defer trying to do bindings. 2018-04-09 Jason Merrill PR c++/85279 - dump_expr doesn't understand decltype. * error.c (dump_expr): Handle DECLTYPE_TYPE. PR c++/85262 - ICE with redundant qualification on constructor. * call.c (build_new_method_call_1): Move make_args_non_dependent after A::A() handling. PR c++/85277 - ICE with invalid offsetof. * semantics.c (finish_offsetof): Avoid passing non-DECL to %qD. Adjust -Winvalid-offsetof diagnostic to say conditionally supported. PR c++/85264 - ICE with excess template-parameter-list. * parser.c (cp_parser_check_template_parameters): Add template_id_p parameter. Don't allow an extra template header if true. (cp_parser_class_head): Pass template_id_p. (cp_parser_elaborated_type_specifier): Likewise. (cp_parser_alias_declaration): Likewise. (cp_parser_check_declarator_template_parameters): Likewise. 2018-04-09 Jakub Jelinek PR c++/85194 * parser.c (cp_parser_simple_declaration): For structured bindings, if *maybe_range_for_decl is NULL after parsing it, set it to error_mark_node. 2018-04-09 Jason Merrill PR c++/85256 - ICE capturing pointer to VLA. * lambda.c (add_capture): Distinguish between variable-size and variably-modified types. 2018-04-06 Jason Merrill PR c++/85214 - ICE with alias, generic lambda, constexpr if. * pt.c (extract_locals_r): Remember local typedefs. 2018-04-06 David Malcolm PR c++/84269 * name-lookup.c (struct std_name_hint): Move out of get_std_name_hint; add field "min_dialect". (get_std_name_hint): Add min_dialect values to all initializers. Add , , , , , , , , , , , , , , and . Add fstream, ifstream, and ofstream to . Add istringstream, ostringstream, and stringstream to . Add basic_string to . Add tuple_element and tuple_size to . Add declval to . Fix ordering of and . Return a std_name_hint, rather than a const char *. (get_cxx_dialect_name): New function. (maybe_suggest_missing_std_header): Detect names that aren't yet available in the current dialect, and instead of suggesting a missing #include, warn about the dialect. 2018-04-06 Jakub Jelinek PR c++/85210 * pt.c (tsubst_decomp_names): Return error_mark_node and assert errorcount is set if tsubst doesn't return a VAR_DECL. 2018-04-06 David Malcolm PR c++/85021 * name-lookup.c (using_directives_contain_std_p): New function. (has_using_namespace_std_directive_p): New function. (suggest_alternatives_for): Simplify if/else logic using early returns. If no candidates were found, and there's a "using namespace std;" directive, call maybe_suggest_missing_std_header. (maybe_suggest_missing_header): Split later part of the function into.. (maybe_suggest_missing_std_header): New. 2018-04-06 Jason Merrill PR c++/85242 - ICE with class definition in template parm. * cp-tree.h (PROCESSING_REAL_TEMPLATE_DECL_P): False if processing_template_parmlist. PR c++/85240 - LTO ICE with using of undeduced auto fn. * cp-gimplify.c (cp_genericize_r): Discard using of undeduced auto. 2018-04-05 Jakub Jelinek PR c++/85209 * pt.c (tsubst_decomp_names): Don't fail or ICE if DECL_CHAIN (decl3) is not prev, if prev == decl. PR c++/85208 * decl.c (start_decl): For DECL_DECOMPOSITION_P decls, don't call maybe_apply_pragma_weak here... (cp_maybe_mangle_decomp): ... but call it here instead. 2018-04-05 Jason Merrill PR c++/85136 - ICE with designated init in template. * decl.c (maybe_deduce_size_from_array_init): Handle dependent designated initializer. (check_array_designated_initializer): Update ce->index with the constant value. PR c++/83808 - ICE with VLA initialization. * typeck2.c (process_init_constructor_array): Don't require a VLA initializer to have VLA type. 2018-04-05 Paolo Carlini PR c++/80956 * call.c (convert_like_real): Fail gracefully for a broken std::initializer_list, missing a definition. * name-lookup.c (do_pushtag): Tweak message, use %< and %>. 2018-04-05 Paolo Carlini PR c++/84792 * decl.c (grokdeclarator): Fix diagnostic about typedef name used as nested-name-specifier, keep type and TREE_TYPE (decl) in sync. 2018-04-05 Jason Merrill PR c++/82152 - ICE with class deduction and inherited ctor. * pt.c (do_class_deduction): Ignore inherited ctors. PR c++/84665 - ICE with array of empty class. * decl2.c (cp_check_const_attributes): Use fold_non_dependent_expr. PR c++/85228 - ICE with lambda in enumerator in template. * pt.c (bt_instantiate_type_proc): Don't assume CLASSTYPE_TEMPLATE_INFO is non-null. 2018-04-05 Ville Voutilainen Implement P0969 * decl.c (find_decomp_class_base): Check accessibility instead of declared access, adjust diagnostic. 2018-04-05 Ville Voutilainen Implement P0961 * decl.c (get_tuple_decomp_init): Check the templatedness of a member get. 2018-04-05 Jason Merrill PR c++/85200 - ICE with constexpr if in generic lambda. * pt.c (extract_locals_r): Don't record the local specs of variables declared within the pattern. 2018-04-05 Alexandre Oliva PR c++/84979 * pt.c (check_auto_in_tmpl_args): New. (tsubst_qualified_id): Use it to reject template args referencing auto for non-type templates. * parser.c (cp_parser_template_id): Likewise. * cp-tree.h (check_auto_in_tmpl_args): Declare. * typeck2.c (build_functional_cast): Report correct location for invalid use of auto. 2018-04-04 Jason Merrill PR c++/85215 - ICE with copy-init from conversion. * call.c (merge_conversion_sequences): Fix type of direct binding sequence. PR c++/84938 - ICE with division by ~-1. * call.c (set_up_extended_ref_temp): Call cp_fully_fold. PR c++/84936 - ICE with unexpanded pack in mem-initializer. * parser.c (cp_parser_mem_initializer_list): Call check_for_bare_parameter_packs. 2018-04-04 Jakub Jelinek PR inline-asm/85172 * constexpr.c (cxx_eval_builtin_function_call): For calls to builtin_valid_in_constant_expr_p functions, don't call cxx_eval_constant_expression if argument is not potential_constant_expression. PR c++/85146 * cp-tree.h (calculate_bases, calculate_direct_bases): Add complain argument. * semantics.c (calculate_bases): Add complain argument. Use complete_type_or_maybe_complain instead of just complete_type and return an empty vector if it fails. Move make_tree_vector () call after early return. Formatting fixes. (calculate_direct_bases): Likewise. Call release_tree_vector at the end. (dfs_calculate_bases_post, calculate_bases_helper): Formatting fixes. * pt.c (tsubst_pack_expansion): Adjust calculate_bases and calculate_direct_bases callers, formatting fixes. 2018-04-04 Jason Merrill PR c++/85006 - -fconcepts ICE with A return type * pt.c (tsubst_pack_expansion): Allow unsubstituted auto pack. PR c++/85200 - ICE with constexpr if in generic lambda. * tree.c (cp_walk_subtrees): Walk into DECL_EXPR in templates. PR c++/84221 - bogus -Wunused with attribute and template. * decl2.c (is_late_template_attribute): Handle unused and used normally on non-TYPE_DECL. PR c++/85135 - ICE with omitted template arguments. * decl.c (grokdeclarator): Catch deduced class type in trailing return type. PR c++/85133 - ICE with missing concept initializer. * decl.c (cp_finish_decl): If a concept initializer is missing, use true. PR c++/85118 - wrong error with generic lambda and std::bind. * call.c (add_template_conv_candidate): Disable if there are any call operators. PR c++/85141 - ICE with compound assignment and static member fn. * typeck.c (cp_build_modify_expr): Call decay_conversion for RHS of compound assignment. PR c++/85148 - ICE with 'this' in array NSDMI. * tree.c (replace_placeholders_r): Use handled_component_p. 2018-04-04 Ville Voutilainen PR c++/65923 * decl.c (grokfndecl): Handle standard UDL diagnostics here.. * parser.c (cp_parser_unqualified_id): ..not here. 2018-04-04 Alexandre Oliva PR c++/84943 * typeck.c (cp_build_addr_expr_1): Mark FUNCTION_DECL as used. * decl2.c (mark_used): Return without effects if tf_conv. 2018-04-03 Jason Merrill PR c++/85092 - C++17 ICE with unused list constructor. * call.c (conv_binds_ref_to_prvalue): Also count ck_identity from a TARGET_EXPR. PR c++/85113 - ICE with constexpr and __builtin_constant_p. * constexpr.c (cxx_eval_builtin_function_call): Only defer __builtin_constant_p if ctx->quiet. 2018-04-03 Paolo Carlini PR c++/84768 * pt.c (rewrite_template_parm): If the first argument is error_mark_node return it immediately. (build_deduction_guide): Check the return value of the latter for error_mark_node. (do_class_deduction): Check the return value of the latter. 2018-04-03 Jason Merrill * semantics.c (finish_if_stmt_cond): Use instantiation_dependent_expression_p. PR c++/85149 - generic lambda and constexpr if. * pt.c (build_extra_args, add_extra_args): Split from tsubst_pack_expansion. (tsubst_expr) [IF_STMT]: Use them. * cp-tree.h (IF_STMT_EXTRA_ARGS): New. * typeck.c (merge_types): Limit matching attribute shortcut to the default case. 2018-04-03 Jakub Jelinek PR c++/85147 * pt.c (fixed_parameter_pack_p_1): Punt if parm is error_mark_node. PR c++/85140 * name-lookup.c (handle_namespace_attrs): Return early if attributes is error_mark_node. PR c++/85134 * decl.c (cp_finish_decl): If ensure_literal_type_for_constexpr_object fails, after clearing DECL_DECLARED_CONSTEXPR_P don't return early, instead for static data members clear init and set DECL_EXTERNAL. 2018-04-02 Jason Merrill PR c++/64095 - auto... parameter pack. * parser.c (cp_parser_parameter_declaration): Handle turning autos into packs here. (cp_parser_parameter_declaration_list): Not here. 2018-03-31 Alexandre Oliva PR c++/85027 * class.c (instantiate_type): Peel off SAVE_EXPR before BASELINK. 2018-03-30 Jason Merrill * typeck2.c (process_init_constructor_record): Use init_list_type_node for the CONSTRUCTOR around an anonymous union designated initializer. 2018-03-30 Jakub Jelinek PR c++/84791 * semantics.c (finish_omp_reduction_clause): If OMP_CLAUSE_REDUCTION_PLACEHOLDER is error_mark_node, return true even if processing_template_decl. 2018-03-29 David Malcolm PR c++/84269 * name-lookup.c (get_std_name_hint): Add names from , , and . 2018-03-29 Jason Merrill PR c++/85093 - too many template args with pack expansion. * pt.c (coerce_template_parms): Keep pack expansion args that will need to be empty. 2018-03-29 Jason Merrill * pt.c (build_non_dependent_expr): Propagate expr location. 2018-03-27 Jason Merrill PR c++/85060 - wrong-code with call to base member in template. * search.c (any_dependent_bases_p): Check uses_template_parms rather than processing_template_decl. 2018-03-29 David Malcolm PR c++/85110 * typeck.c (convert_for_assignment): When complaining due to conversions for an argument, attempt to use the location of the argument. 2018-03-28 Paolo Carlini PR c++/85028 * pt.c (tsubst_default_argument): Early return if the type of the parameter is erroneous. 2018-03-28 Alexandre Oliva PR c++/84973 * decl2.c (note_vague_linkage_fn): Don't defer uninstantiated templates. PR c++/84968 * tree.c (strip_typedefs_expr): Reject STATEMENT_LISTs. 2018-03-27 Paolo Carlini PR c++/85067 * method.c (defaulted_late_check): Partially revert r253321 changes, do not early return upon error. 2018-03-27 Jakub Jelinek PR c++/85077 * cp-gimplify.c (cp_fold) : For ctors with vector type call fold to generate VECTOR_CSTs when possible. PR c++/85076 * tree.c (cp_build_reference_type): If to_type is error_mark_node, return it right away. 2018-03-27 Volker Reichelt * search.c (check_final_overrider): Use inform instead of error for the diagnostics of the overridden functions. Tweak wording. 2018-03-27 Jakub Jelinek PR c++/85068 * class.c (update_vtable_entry_for_fn): Don't ICE if base_binfo is NULL. Assert if thunk_binfo is NULL then errorcount is non-zero. 2018-03-27 Paolo Carlini Jason Merrill PR c++/84632 * init.c (build_aggr_init): When initializing from array, reject anything but CONSTRUCTORs and TARGET_EXPRs. (build_vec_init): Handle separately ARRAY_TYPEs. 2018-03-26 Jason Merrill PR c++/85062 - ICE with alignas in wrong place. * decl.c (grokdeclarator): Ignore attributes on type-specifiers here. PR c++/85049 - ICE with __integer_pack. * pt.c (unify_pack_expansion): Don't try to deduce generated packs. * cp-tree.h (TEMPLATE_PARM_P): New. 2018-03-23 Jason Merrill PR c++/78489 - wrong SFINAE behavior. PR c++/84489 * pt.c (type_unification_real): Don't defer substitution failure. 2018-03-23 Jakub Jelinek PR c++/85015 * decl.c (compute_array_index_type): Set osize to mark_rvalue_use result. PR c++/84942 * pt.c (tsubst_copy_and_build) : Replace cp_build_unary_op call with gcc_unreachable (). 2018-03-23 Marek Polacek PR c++/85045 * cxx-pretty-print.c (cxx_pretty_printer::multiplicative_expression): Handle EXACT_DIV_EXPR and RDIV_EXPR. Tweak condition. (cxx_pretty_printer::expression): Handle EXACT_DIV_EXPR and RDIV_EXPR. 2018-03-23 Ville Voutilainen Implement P0962 * parser.c (cp_parser_perform_range_for_lookup): Change the condition for deciding whether to use members. 2018-03-23 Marek Polacek PR c++/85033 * semantics.c (finish_offsetof): Don't allow CONST_DECLs. 2018-03-23 Alexandre Oliva PR c++/71251 * parser.c (cp_parser_alias_declaration): Call parser_check_template_parameters. PR c++/84789 * pt.c (resolve_typename_type): Drop assert that stopped simplification to template-independent types. Add assert to verify the initial scope is template dependent. * parser.c (cp_parser_parse_and_diagnose_invalid_type_name): Reparse the id expression as a type-name, not a declarator. PR c++/84729 * init.c (build_vec_init): Error at parenthesized array init. PR c++/84610 PR c++/84642 PR c++/84942 * cp-tree.h (temp_override): New template class, generalizing a cleanup that was only used... * parser.c (cp_parser_parameter_declaration_clause): ... here for auto_is_implicit_function_template_parm_p. (cp_parser_gnu_attributes_opt): Use it here as well. (cp_parser_std_attribute): Likewise. 2018-03-22 Marek Polacek PR c++/84854 * semantics.c (finish_if_stmt_cond): Check if the type of the condition is boolean. 2018-03-21 Jason Merrill PR c++/81311 - wrong C++17 overload resolution. * call.c (build_user_type_conversion_1): Remove C++17 code. (conv_binds_ref_to_prvalue): New. (build_over_call): Handle C++17 copy elision. (build_special_member_call): Only do C++17 copy elision here if the argument is already the right type. 2018-03-21 Alexandre Oliva PR c++/71965 * init.c (build_vec_init): Silence error, former sorry, without tf_error. PR c++/84610 PR c++/84642 * parser.c (abort_fully_implicit_template_p): New. (cp_parser_skip_to_end_of_statement): Use it. (cp_parser_skip_to_end_of_block_or_statement): Likewise. (finish_fully_implicit_template_p): Clear implicit_template_parms and implicit_template_scope. 2018-03-21 Paolo Carlini PR c++/84972 * decl.c (maybe_deduce_size_from_array_init): Set TREE_TYPE to error_mark_node when check_array_designated_initializer fails. 2018-03-21 Jakub Jelinek PR c++/84961 * cp-tree.h (genericize_compound_lvalue): Declare. * typeck.c (genericize_compound_lvalue): New function. (unary_complex_lvalue, cp_build_modify_expr): Use it. * semantics.c (finish_asm_stmt): Replace MODIFY_EXPR, PREINCREMENT_EXPR and PREDECREMENT_EXPR in output and "m" constrained input operands with COMPOUND_EXPR. Call cxx_mark_addressable on the rightmost COMPOUND_EXPR operand. 2018-03-21 Nathan Sidwell PR c++/85008 * tree.c (decl_linkage): Use DECL_CLONED_FUNCTION_P. * decl2.c (vague_linkage_p): Likewise. 2018-03-21 David Malcolm PR c++/84994 * constexpr.c (constexpr_fn_retval): Make non-"static". * cp-tree.h (constexpr_fn_retval): New decl. * search.c (direct_accessor_p): Update leading comment. (reference_accessor_p): Likewise. (field_accessor_p): Replace check that function body is a RETURN_EXPR with a call to constexpr_fn_retval. Fix indentation of "field_type" decl. 2018-03-21 Nathan Sidwell PR c++/84804 * name-lookup.c (do_pushtag): Permit lambdas to be pushed into complete classes. 2018-03-21 Martin Sebor PR c++/84850 * call.c (first_non_public_field): New template and function. (first_non_trivial_field): New function. (maybe_warn_class_memaccess): Call them. 2018-03-21 David Malcolm PR c++/84892 * search.c (field_accessor_p): Use class_of_this_parm rather than type_of_this_parm, to check that "this" is a "const T *", rather than a "T *const". 2018-03-21 Nathan Sidwell * class.c (finish_struct_anon_r): Refactor, deprecate anything other than public non-static data members. * parser.c (cp_parser_init_declarator): Deprecate attributes after parenthesized initializer. PR c++/84836 * name-lookup.c (update_binding): Correct logic for local binding update. 2018-03-21 Marek Polacek PR c++/71638, ICE with NSDMI and reference. * constexpr.c (cxx_eval_bare_aggregate): Update constructor's flags even when we replace an element. 2018-03-20 Marek Polacek PR c++/84978, ICE with NRVO. * constexpr.c (cxx_eval_constant_expression): Handle the case when a RESULT_DECL isn't in the hash map. 2018-03-20 Jason Merrill PR c++/84978, ICE with NRVO. * cvt.c (cp_get_fndecl_from_callee): Add fold parameter. (cp_get_callee_fndecl_nofold): New. * cp-gimplify.c (cp_genericize_r): Use it instead. * call.c (check_self_delegation): Likewise. 2018-03-20 Nathan Sidwell PR c++/84962 * name-lookup.c (pushdecl_class_level): Push anon-struct's member_vec, if there is one. PR c++/84970 * cp-tree.h (lookup_list_keep): Declare. * tree.c (lookup_list_keep): New, broken out of ... (build_min): ... here. Call it. * decl.c (cp_finish_decl): Call lookup_list_keep. 2018-03-19 Jason Merrill PR c++/84937 - ICE with class deduction and auto. * pt.c (rewrite_template_parm): Fix auto handling. 2018-03-19 Marek Polacek PR c++/84925 * pt.c (enclosing_instantiation_of): Check if fn is null. PR c++/84927 * constexpr.c (cxx_eval_bare_aggregate): Update constructor's flags as we evaluate the elements. (cxx_eval_constant_expression): Verify constructor's flags unconditionally. 2018-03-19 Jason Merrill PR c++/71834 - template-id with too few arguments. * pt.c (coerce_template_parms): Check fixed_parameter_pack_p. 2018-03-19 Nathan Sidwell PR c++/84835 * lambda.c (maybe_add_lambda_conv_op): Force C++ linkage. * pt.c (build_template_decl): Propagate language linkage. PR c++/84812 * name-lookup.c (set_local_extern_decl_linkage): Defend against ambiguous lookups. 2018-03-16 Jakub Jelinek PR c/84910 * parser.c (cp_parser_lambda_introducer): Remove trailing space from diagnostics. * method.c (synthesize_method): Likewise. * pt.c (convert_nontype_argument): Likewise. 2018-03-16 Jason Merrill PR c++/84720 - ICE with rvalue ref non-type argument. * pt.c (invalid_nontype_parm_type_p): Prohibit rvalue reference. (convert_nontype_argument): Revert earlier change. PR c++/80227 - SFINAE and negative array size. * decl.c (compute_array_index_type): Use build_converted_constant_expr and valid_constant_size_p. PR c++/84906 - silent wrong code with ambiguous conversion. * call.c (build_user_type_conversion_1): Set need_temporary_p on ambiguous conversion. (convert_like_real): Check it. PR c++/83937 - wrong C++17 handling of init-list ctor argument. * call.c (build_special_member_call): Don't convert an init-list argument directly to the class type. 2018-03-16 Jakub Jelinek PR c++/79937 PR c++/82410 * cp-tree.h (CONSTRUCTOR_PLACEHOLDER_BOUNDARY): Define. (find_placeholder): Declare. * tree.c (struct replace_placeholders_t): Add exp member. (replace_placeholders_r): Don't walk into ctors with CONSTRUCTOR_PLACEHOLDER_BOUNDARY flag set, unless they are equal to d->exp. Replace PLACEHOLDER_EXPR with unshare_expr (x) rather than x. (replace_placeholders): Initialize data.exp. (find_placeholders_r, find_placeholders): New functions. * typeck2.c (process_init_constructor_record, process_init_constructor_union): Set CONSTRUCTOR_PLACEHOLDER_BOUNDARY if adding NSDMI on which find_placeholder returns true. * call.c (build_over_call): Don't call replace_placeholders here. * cp-gimplify.c (cp_genericize_r): Set TARGET_EXPR_NO_ELIDE on TARGET_EXPRs with CONSTRUCTOR_PLACEHOLDER_BOUNDARY set on TARGET_EXPR_INITIAL. (cp_fold): Copy over CONSTRUCTOR_PLACEHOLDER_BOUNDARY bit to new ctor. 2018-03-16 Jason Merrill PR c++/83911 - ICE with multiversioned constructor. * cp-gimplify.c (cp_genericize_r): Replace versioned function with dispatchere here. * call.c (build_over_call): Not here. 2018-03-16 Jakub Jelinek PR c++/84874 * decl.c (reshape_init_class): Don't assert d->cur->index == field if d->cur->index is a FIELD_DECL, instead set field to d->cur->index. 2018-03-15 Jakub Jelinek PR c++/84222 * cp-tree.h (cp_warn_deprecated_use): Declare. * tree.c (cp_warn_deprecated_use): New function. * typeck2.c (build_functional_cast): Use it. * decl.c (grokparms): Likewise. (grokdeclarator): Likewise. Temporarily push nested class scope around grokparms call for out of class member definitions. 2018-03-14 Jason Merrill PR c++/84820 - no error for invalid qualified-id. * parser.c (cp_parser_make_indirect_declarator): Don't wrap cp_error_declarator. PR c++/84801 - ICE with unexpanded pack in lambda. * pt.c (check_for_bare_parameter_packs): Don't return early for a lambda in non-template context. PR c++/81236 - auto variable and auto function * pt.c (tsubst_baselink): Update the type of the BASELINK after mark_used. 2018-03-14 Jason Merrill PR c++/83916 - ICE with template template parameters. * pt.c (convert_template_argument): Don't substitute into type of non-type parameter if we don't have enough arg levels. (unify): Likewise. 2018-03-14 Marek Polacek PR c++/84596 * semantics.c (finish_static_assert): Check instantiation_dependent_expression_p instead of {type,value}_dependent_expression_p. 2018-03-13 Paolo Carlini Jason Merrill PR c++/82336 - link error with list-init default argument. * decl.c (check_default_argument): Unshare an initializer list. 2018-03-13 Jakub Jelinek PR c++/84843 * decl.c (duplicate_decls): For redefinition of built-in, use error and return error_mark_node. For redeclaration, return error_mark_node rather than olddecl if !flag_permissive. 2018-03-13 Jason Merrill PR c++/82565 - ICE with concepts and generic lambda. * pt.c (instantiate_decl): Clear fn_context for lambdas. 2018-03-13 Jason Merrill PR c++/84720 - ICE with rvalue ref non-type argument. * pt.c (convert_nontype_argument): Handle rvalue references. PR c++/84839 - ICE with decltype of parameter pack. * pt.c (tsubst_pack_expansion): Set cp_unevaluated_operand while instantiating dummy parms. * parser.c (cp_parser_simple_type_specifier): Pedwarn about auto parameter even without -Wpedantic. PR c++/84798 - ICE with auto in abstract function declarator. * parser.c (cp_parser_parameter_declaration_clause): Check parser->default_arg_ok_p. 2018-03-13 Jakub Jelinek PR c++/84808 * constexpr.c (find_array_ctor_elt): Don't use elt reference after first potential CONSTRUCTOR_ELTS reallocation. Convert dindex to sizetype. Formatting fixes. 2018-03-12 Jason Merrill PR c++/84355 - ICE with deduction for member class template. * pt.c (tsubst) [TEMPLATE_TYPE_PARM]: Always substitute into CLASS_PLACEHOLDER_TEMPLATE. PR c++/84802 - ICE capturing uninstantiated class. * lambda.c (build_capture_proxy): Call complete_type. 2018-03-09 Jason Merrill PR c++/84770 - ICE with typedef and parameter pack. * pt.c (verify_unstripped_args_1): Split out from verify_unstripped_args. PR c++/84785 - ICE with alias template and default targs. * pt.c (type_unification_real): Set processing_template_decl if saw_undeduced == 1. PR c++/84752 - ICE with capture of constexpr array. * call.c (standard_conversion): Set rvaluedness_matches_p on the identity conversion under ck_lvalue. 2018-03-09 Jason Merrill Paolo Carlini PR c++/71169 PR c++/71832 * pt.c (any_erroneous_template_args_p): New. * cp-tree.h (any_erroneous_template_args_p): Declare it. * parser.c (cp_parser_class_specifier_1): Use it. 2018-03-09 Jason Merrill PR c++/84726 - unnecessary capture of constant vars. * cp-tree.h (LAMBDA_CAPTURE_EXPLICIT_P) (LAMBDA_EXPR_CAPTURE_OPTIMIZED): New. * expr.c (mark_use): Set LAMBDA_EXPR_CAPTURE_OPTIMIZED. * lambda.c (is_constant_capture_proxy) (current_lambda_expr, var_to_maybe_prune, mark_const_cap_r) (prune_lambda_captures): New. (finish_lambda_function): Call prune_lambda_captures. 2018-03-09 Jason Merrill Jakub Jelinek PR c++/84076 * call.c (convert_arg_to_ellipsis): Instead of cp_build_addr_expr build ADDR_EXPR with REFERENCE_TYPE. (build_over_call): For purposes of check_function_arguments, if argarray[j] is ADDR_EXPR with REFERENCE_TYPE created above, use its operand rather than the argument itself. 2018-03-09 Jakub Jelinek PR c++/84724 * decl.c (duplicate_decls): Don't override __* prefixed builtins except for __[^b]*_chk, instead issue permerror and for -fpermissive also a note and return olddecl. 2018-03-09 Nathan Sidwell PR c++/84733 * name-lookup.c (do_pushdecl_with_scope): Only clear current_function_decl when pushing a non-class (i.e. namespace) scope. 2018-03-08 Jason Merrill Jakub Jelinek PR c++/80598 * call.c (build_over_call): In templates set TREE_USED (first_fn) when not calling mark_used for the benefit of -Wunused-function warning. 2018-03-06 Jason Merrill * lambda.c (is_capture_proxy_with_ref): Remove. * constexpr.c, expr.c, cp-tree.h, semantics.c: Adjust. 2018-03-06 Marek Polacek PR c++/84684 * constexpr.c (cxx_bind_parameters_in_call): Unshare evaluated arguments. 2018-03-06 Alexandre Oliva PR c++/84231 * tree.c (lvalue_kind): Use presence/absence of REFERENCE_TYPE only while processing template decls. * typeck.c (build_x_conditional_expr): Move wrapping of reference type around type... * call.c (build_conditional_expr_1): ... here. Rename is_lvalue to is_glvalue. * parser.c (cp_parser_fold_expression): Catch REFERENCE_REF_P INDIRECT_REF of COND_EXPR too. PR c++/84593 * init.c (build_zero_init_1): Zero-initialize references. PR c++/84492 * semantics.c (finish_stmt_expr_expr): Reject unresolved overloads used as stmt expr values. 2018-03-05 Jason Merrill PR c++/84708 - ICE with lambda in local class NSDMI. * lambda.c (lambda_expr_this_capture): Handle local class NSDMI context. 2018-03-05 Jakub Jelinek PR c++/84684 * constexpr.c (constexpr_call_hasher::equal): Return false if lhs->hash != rhs->hash. Change return 1 to return true and return 0 to return false. 2018-03-05 Nathan Sidwell PR c++/84702 * pt.c (process_template_arg): Mark lookup_keep on a default arg. 2018-03-05 Marek Polacek PR c++/84707 * decl.c (duplicate_decls): Check DECL_NAME before accessing UDLIT_OPER_P. 2018-03-05 Nathan Sidwell PR c++/84694 * friend.c (do_friend): Restore check for identifier_p inside TEMPLATE_ID_EXPR. 2018-03-05 Paolo Carlini PR c++/84618 * parser.c (cp_parser_lambda_introducer): Reject any capture not involving a VAR_DECL or a PARM_DECL. 2018-03-05 Pádraig Brady Jason Merrill Nathan Sidwell PR c++/84497 * decl2.c (get_tls_init_fn): Check TYPE_HAS_TRIVIAL_DFLT too. 2018-03-03 Jason Merrill PR c++/84686 - missing volatile loads. * cvt.c (convert_to_void): Call maybe_undo_parenthesized_ref. 2018-03-03 Paolo Carlini PR c++/71464 * optimize.c (maybe_thunk_body): Bail out immediately if either fns[0] or fns[1] is null. 2018-03-02 Marek Polacek PR c++/84578 * constexpr.c (get_array_or_vector_nelts): New. (cxx_eval_array_reference): Use it. (cxx_eval_vec_init_1): Likewise. (cxx_eval_store_expression): Likewise. 2018-03-02 Jason Merrill * semantics.c (force_paren_expr): Remove redundant test. 2018-03-02 Marek Polacek PR c++/84663 * decl.c (cp_complete_array_type): Check error_mark_node. PR c++/84664 * typeck.c (cp_perform_integral_promotions): Check the result of mark_rvalue_use. 2018-03-02 Jakub Jelinek PR c++/84662 * pt.c (tsubst_copy_and_build) : Use RETURN instead of return. : Likewise. : If op0 is error_mark_node, just return it instead of wrapping it into CONVERT_EXPR. 2018-03-02 Jason Merrill Fix MIPS16 ICE. * pt.c (type_dependent_expression_p): Check DECL_LANG_SPECIFIC. 2018-03-02 Marek Polacek PR c++/84590 * cp-gimplify.c (cp_fully_fold): Unwrap TARGET_EXPR or a CONSTRUCTOR wrapped in VIEW_CONVERT_EXPR. 2018-03-01 Martin Sebor PR c++/84294 * decl.c (check_redeclaration_no_default_args): Merge attributes specified on redeclarations of the same function template. Remove dead code. 2018-03-01 Marek Polacek Jason Merrill PR c++/84582 * semantics.c (force_paren_expr): Create a PAREN_EXPR when in a template. (maybe_undo_parenthesized_ref): Unwrap PAREN_EXPR. * typeck2.c (store_init_value): Call fold_non_dependent_expr instead of instantiate_non_dependent_expr. * tree.c (lvalue_kind): Handle PAREN_EXPR like NON_DEPENDENT_EXPR. 2018-03-01 Nathan Sidwell PR c++/84434 * name-lookup.c (member_vec_dedup): Remove manually peeled iteration. Ignore dependent ctor inheritance. 2018-03-01 Jason Merrill PR c++/71569 - decltype of template. * parser.c (cp_parser_decltype_expr): Handle missing template args. 2018-03-01 Marek Polacek PR c++/84596 * constexpr.c (require_rvalue_constant_expression): New function. * cp-tree.h: Declare it. * semantics.c (finish_static_assert): Use it instead of require_potential_rvalue_constant_expression. 2018-03-01 Jason Merrill Alexandre Oliva PR c++/71569 - ICE with redundant args on member variable template. * decl.c (start_decl): Handle partial specialization of member variable template. * pt.c (determine_specialization): Allow partial specialization of member variable template without specializing enclosing class. (process_partial_specialization): Improve error message. 2018-02-28 Jason Merrill PR c++/71784 - ICE with ref-qualifier and explicit specialization. * pt.c (determine_specialization): Check ref-qualifier. 2018-02-28 Jakub Jelinek PR c++/84609 * parser.c (cp_parser_attributes_opt): Formatting fix. (cp_parser_skip_balanced_tokens, cp_parser_skip_gnu_attributes_opt, cp_parser_skip_std_attribute_spec_seq, cp_parser_skip_attributes_opt): New functions. (cp_parser_member_declaration): Use cp_parser_skip_attributes_opt instead of tentative parse to peek over optional attribute tokens to check for CPP_COLON after them. PR c++/83871 PR c++/83503 * pt.c (INCLUDE_STRING): Remove define. (warn_spec_missing_attributes): Use pretty_printer instead of std::string. Fix up inform call so that the list of attributes is in %s argument. 2018-02-28 Martin Sebor PR testsuite/84617 * decl.c (duplicate_decls): Fully merge attributes const, pure, and malloc. 2018-02-28 Nathan Sidwell PR c++/84602 * name-lookup.h (search_anon_aggr): Add defaulted WANT_TYPE arg. * name-lookup.c (fields_linear_search): Look in an anon-aggr regardless of want_type. (search_anon_aggr): Just use get_class_binding_direct. 2018-02-28 Jakub Jelinek * decl.c (cp_finish_decomp): Don't adjust eltscnt when calling inform_n. 2018-02-27 Martin Sebor * pt.c: Avoid including directly. 2018-02-27 Martin Sebor PR c++/83871 PR c++/83503 * cp-tree.h (warn_spec_missing_attributes): New function. ((check_explicit_specialization): Add an argument. Call the above function. * decl.c (duplicate_decls): Avoid applying primary function template's attributes to its explicit specializations. cp/pt.c (warn_spec_missing_attributes): Define. 2018-02-27 Håkon Sandsmark PR c++/71546 - lambda init-capture with qualified-id. * parser.c (cp_parser_lambda_introducer): Clear scope after each lambda capture. 2018-02-27 Nathan Sidwell PR c++/84426 * name-lookup.h (get_member_slot): Rename ... (find_member_slot): ... here. (add_member_slot): New. * name-lookup.c (member_vec_linear_search): No need to check for NULL slot. (get_member_slot): Rename ... (find_member_slot): ... here. Don't add slot for incomplete class. (add_member_slot): New. * class.c (add_method): Adjust get_member_slot rename. Bail out if push_class_level_binding fails. Create slot and grok properties once we're committed to insertion. 2018-02-27 Jason Merrill PR c++/84489 - dependent default template argument * pt.c (type_unification_real): Handle early substitution failure. 2018-02-26 Jason Merrill PR c++/84560 - ICE capturing multi-dimensional VLA. * tree.c (array_of_runtime_bound_p): False if the element is variably-modified. PR c++/84441 - ICE with base initialized from ?: * call.c (unsafe_copy_elision_p): Handle COND_EXPR. PR c++/84520 - ICE with generic lambda in NSDMI. * lambda.c (lambda_expr_this_capture): Don't look for fake NSDMI 'this' in a generic lambda instantiation. PR c++/84559 - ICE with constexpr VLA. * constexpr.c (ensure_literal_type_for_constexpr_object): Check for constexpr variable with VLA type. 2018-02-26 Jakub Jelinek PR c++/84558 * constexpr.c (cxx_eval_vec_init_1): For reuse, treat NULL eltinit like a valid constant initializer. Formatting fixes. 2018-02-26 Paolo Carlini PR c++/84540 * pt.c (tsubst_attributes): Handle correctly tsubst_attribute returning NULL_TREE. (apply_late_template_attributes): Likewise. 2018-02-26 Jakub Jelinek PR c++/84557 * parser.c (cp_parser_omp_var_list_no_open): Only call cp_parser_lookup_name_simple on names satisfying identifier_p. (cp_parser_oacc_routine): Likewise. 2018-02-26 Jason Merrill PR c++/84551 - ICE with concepts and -g. * parser.c (add_debug_begin_stmt): Do nothing in a concept. 2018-02-26 Marek Polacek PR c++/84325 * tree.c (replace_placeholders_r): Only check TREE_CONSTANT on non-types. 2018-02-26 Jason Merrill PR c++/84447 - ICE with deleted inherited ctor with default arg. * call.c (build_over_call): Handle deleted functions in one place. 2018-02-26 Paolo Carlini PR c++/84533 * decl.c (redeclaration_error_message): Don't try to use DECL_DECLARED_CONSTEXPR_P on CONST_DECLs. 2018-02-26 Paolo Carlini * lambda.c (build_capture_proxy): Define static. * cp-tree.h (build_capture_proxy): Remove. 2018-02-26 Marek Polacek PR c++/84537 * name-lookup.c (suggest_alternative_in_explicit_scope): Return false if name is error node. 2018-02-25 Jason Merrill PR c++/84015 - ICE with class deduction and auto template parm. * pt.c (rewrite_template_parm): Use tf_partial in first tsubst. 2018-02-24 Marek Polacek PR c++/83692 * constexpr.c (maybe_constant_init_1): New function. (maybe_constant_init): Make it a wrapper around maybe_constant_init_1. (cxx_constant_init): New function. * cp-tree.h (cxx_constant_init): Declare. * typeck2.c (store_init_value): Call cxx_constant_init instead of cxx_constant_value. Move the maybe_constant_init call under an 'else'. 2018-02-22 Jason Merrill PR c++/70468 - ICE with constructor delegation via typedef. * pt.c (tsubst_initializer_list): Check for other mem-initializers with constructor delegation. 2018-02-22 Jason Merrill PR c++/84424 - ICE with constexpr and __builtin_shuffle. * constexpr.c (reduced_constant_expression_p): Handle CONSTRUCTOR of VECTOR_TYPE. 2018-02-22 Marek Polacek PR c++/84493 * parser.c (cp_parser_braced_list): Use require_open instead of consume_open. 2018-02-21 Jason Merrill PR c++/84454 - ICE with pack expansion in signature. * error.c (find_typenames_r): Also stop on EXPR_PACK_EXPANSION. 2018-02-20 Siddhesh Poyarekar * cp-objcp-common.c (cxx_block_may_fallthru): Add case for IF_STMT. 2018-02-20 Paolo Carlini PR c++/84446 * parser.c (cp_parser_init_declarator): Don't call start_lambda_scope on error_mark_node. 2018-02-20 Jakub Jelinek PR c++/84445 * class.c (fixed_type_or_null) : Only test TREE_HAS_CONSTRUCTOR if instance is not an internal function call. PR c++/84449 * tree.c (bot_manip): If build_cplus_new or break_out_target_exprs returns error_mark_node, return it immediately. (break_out_target_exprs): If cp_walk_tree with bot_manip returns error_mark_node, return error_mark_node. PR c++/84455 * pt.c (tsubst_lambda_expr): If not nested, increment temporarily function_depth to avoid GC during finish_lambda_function. 2018-02-19 Jason Merrill PR c++/84429 - ICE capturing VLA. * lambda.c (build_capture_proxy): Handle reference refs. 2018-02-19 Jakub Jelinek PR c++/84448 * parser.c (cp_parser_binary_expression): For no_toplevel_fold_p, if either operand is error_mark_node, set current.lhs to that instead of creating a binary op with error_mark_node operands. PR c++/84430 * constexpr.c (potential_constant_expression_1): Handle OMP_SIMD. 2018-02-19 Paolo Carlini PR c++/84348 * decl.c (grokdeclarator): Early return error_mark_node upon ill-formed friend declaration. 2018-02-16 Marek Polacek Jakub Jelinek PR c++/84192 * constexpr.c (cxx_eval_constant_expression) : Don't set *jump_target to anything if jump_target is NULL. 2018-02-16 Jason Merrill PR c++/84151 - unnecessary volatile load with static member. * call.c (build_new_method_call_1): Avoid loading from a volatile lvalue used as the object argument for a static member function. PR c++/81853 - using-directive and constexpr. * constexpr.c (cxx_eval_constant_expression): Handle USING_STMT. PR c++/84420 - ICE with structured binding in lambda. * lambda.c (is_capture_proxy): Check DECL_DECOMPOSITION_P. PR c++/83835 - C++17 error with constructor ctors. * call.c (build_special_member_call): Set TARGET_EXPR_DIRECT_INIT_P. PR c++/82664 - ICE with reference to function template parm. * pt.c (convert_nontype_argument_function): Avoid obfuscationg NOP_EXPRs. PR c++/82764 - C++17 ICE with empty base * class.c (build_base_field_1): Set DECL_SIZE to zero for empty base. 2018-02-16 Jason Merrill PR c++/84421 - type-dependent if constexpr * semantics.c (finish_if_stmt_cond): Check type_dependent_expression_p. 2018-02-16 Nathan Sidwell Deprecate -ffriend-injection. * decl.c (cxx_init_decl_processing): Emit warning on option. * name-lookup.c (do_pushdecl): Emit warning if we push a visible friend. 2018-02-16 Paolo Carlini PR c++/82468 * decl.c (check_special_function_return_type): Reject template template parameter in deduction guide. 2018-02-16 Nathan Sidwell PR c++/84375 * name-lookup.c (do_pushdecl): Bail out on bad local friend injection. 2018-02-15 Jason Merrill PR c++/83227 - C++17 ICE with init-list derived-to-base conversion. * call.c (convert_like_real): Don't use the copy-list-initialization shortcut for ck_base. PR c++/84045 - ICE with typedef and noexcept. * except.c (build_noexcept_spec): Use strip_typedefs_expr. PR c++/84376 - ICE with omitted template arguments. * pt.c (dguide_name_p): Check for IDENTIFIER_NODE. PR c++/84368 - wrong error with local variable in variadic lambda. * pt.c (tsubst_pack_expansion): Fix handling of non-packs in local_specializations. 2018-02-15 Paolo Carlini PR c++/84330 * constraint.cc (tsubst_constraint_info): Handle an error_mark_node as first argument. 2018-02-14 Paolo Carlini PR c++/84350 * pt.c (do_auto_deduction): Don't check the TREE_TYPE of a null init, early return. 2018-02-14 Nathan Sidwell * decl2.c (mark_vtable_entries): Set input_location to decl's. (c_parse_final_cleanups): Restore input_location after emitting vtables. 2018-02-14 Paolo Carlini * cp-tree.h (do_auto_deduction (tree, tree, tree)): Remove. (do_auto_deduction (tree, tree, tree, tsubst_flags_t, auto_deduction_context, tree, int): Add defaults. * pt.c (do_auto_deduction (tree, tree, tree)): Remove definition. (tsubst_omp_for_iterator): Adjust do_auto_deduction call, forward tsubst_flags_t argument. * init.c (build_new): Likewise. 2018-02-13 Jakub Jelinek PR c++/84364 * typeck.c (check_return_expr): Don't emit -Weffc++ warning about return other than *this in assignment operators if retval is type dependent expression. 2018-02-13 Paolo Carlini PR c++/84333 * call.c (build_conditional_expr_1): Use cp_save_expr instead of save_expr for the G++ extension. 2018-02-13 Jason Merrill PR c++/84080 - ICE with return type deduction and specialization. * pt.c (determine_specialization): Check uses_template_parms. Fix more variadic capture issues. * pt.c (find_parameter_packs_r): Also look at explicit captures. (check_for_bare_parameter_packs): Check current_class_type for lambda context. (extract_locals_r): Handle seeing a full instantiation of a pack. (tsubst_pack_expansion): Likewise. Force lambda capture. * parser.c (cp_parser_lambda_introducer): Don't check_for_bare_parameter_packs. PR c++/84338 - wrong variadic sizeof. * pt.c (argument_pack_select_arg): Like the macro, but look through a pack expansion. (tsubst, tsubst_copy, dependent_template_arg_p): Use it. (extract_fnparm_pack): Do make_pack_expansion. (extract_locals_r): Do strip a pack expansion. * cp-tree.h (ARGUMENT_PACK_SELECT_ARG): Remove. 2018-02-12 Jakub Jelinek PR c++/84341 * parser.c (cp_parser_binary_expression): Use build_min instead of build2_loc to build the no_toplevel_fold_p toplevel binary expression. 2018-02-12 Nathan Sidwell PR c++/84263 * parser.c (cp_parser_decltype): Push and pop deferring_access_checks. Reorganize to avoid goto. 2018-02-12 Richard Biener PR c++/84281 * constexpr.c (cxx_eval_vec_init_1): Use a RANGE_EXPR to compact uniform constructors and delay allocating them fully. 2018-02-09 Jason Merrill PR c++/84036 - ICE with variadic capture. Handle variadic capture proxies more like non-variadic. * lambda.c (build_capture_proxy): Remove workaround. * pt.c (find_parameter_packs_r): The proxy is a pack. (instantiate_class_template_1): Remove dead lambda code. (extract_fnparm_pack): Don't make_pack_expansion. (extract_locals_r): Don't strip a pack expansion. (tsubst_pack_expansion): Handle proxy packs. Use PACK_EXPANSION_EXTRA_ARGS less. (tsubst_decl) [FIELD_DECL]: Don't register_specialization. (tsubst_copy) [FIELD_DECL]: Don't retrieve*_specialization. [VAR_DECL]: Handle ARGUMENT_PACK_SELECT. (tsubst_expr) [DECL_EXPR]: Handle proxy packs. (tsubst_copy_and_build) [VAR_DECL]: Handle proxy packs normally. 2018-02-10 Jakub Jelinek PR sanitizer/83987 * tree.c (cp_free_lang_data): Revert 2018-01-23 change. 2018-02-09 Jason Merrill PR c++/81917 - ICE with void_t and partial specialization. * pt.c (instantiate_class_template_1): Set TYPE_BEING_DEFINED before calling most_specialized_partial_spec. 2018-02-09 Nathan Sidwell PR c/84293 * typeck.c (cp_build_indirect_ref_1, build_reinterpret_cast_1): Pass expr location to strict_aliasing_warning. 2018-02-09 Jason Merrill PR c++/84296 - ICE with qualified-id in template. PR c++/83714 * pt.c (unknown_base_ref_p): New. (instantiation_dependent_scope_ref_p): Use it instead of any_dependent_bases_p. 2018-02-09 Marek Polacek Jakub Jelinek PR c++/83659 * constexpr.c (cxx_fold_indirect_ref): Sync some changes from fold_indirect_ref_1, including poly_*int64. Verify first that tree_fits_poly_int64_p (op01). Formatting fixes. 2018-02-08 Paolo Carlini * constexpr.c (cxx_eval_component_reference): Use INDIRECT_REF_P. * lambda.c (build_capture_proxy): Likewise. * search.c (field_access_p): Likewise. * semantics.c (omp_clause_decl, omp_privatize_field, finish_omp_clauses): Likewise. 2018-02-08 Paolo Carlini PR c++/83806 * typeck.c (decay_conversion): Use mark_rvalue_use for the special case of nullptr too. 2018-02-08 Nathan Sidwell * class.c (finish_struct): Fix std:initializer_list diagnostic formatting. 2018-02-08 Paolo Carlini PR c++/83204 * pt.c (tsubst_copy_and_build): Use force_paren_expr for INDIRECT_REF. 2018-02-07 Jakub Jelinek PR c++/84082 * parser.c (cp_parser_dot_deref_incomplete): New function. (cp_parser_postfix_dot_deref_expression): Use it. 2018-02-07 David Malcolm PR c++/81610 PR c++/80567 * name-lookup.c (suggest_rid_p): New function. (lookup_name_fuzzy): Replace enum-rid-filtering logic with call to suggest_rid_p. 2018-02-07 Jason Merrill PR c++/84182 - ICE with captured lambda PR c++/84181 * pt.c (extract_locals_r, extract_local_specs): New. (tsubst_pack_expansion): Use them. 2018-02-07 Martin Liska PR c++/84059. * class.c (add_method): Append argument value. * cp-tree.h (maybe_version_functions): Add new argument. * decl.c (decls_match): Call it if a declaration does not have DECL_FUNCTION_VERSIONED. (maybe_version_functions): record argument is added. 2018-02-05 Marek Polacek * class.c: Remove unused global variables. (build_primary_vtable): Don't gather statistics. (print_class_statistics): Remove. * cp-tree.h (print_class_statistics): Remove. * tree.c (cxx_print_statistics): Don't call print_class_statistics. 2018-02-02 Paolo Carlini * class.c (is_really_empty_class): Use DECL_UNNAMED_BIT_FIELD. * constexpr.c (cx_check_missing_mem_inits): Likewise. * decl.c (next_initializable_field, find_decomp_class_base, cp_finish_decomp): Likewise. * typeck2.c (process_init_constructor_record): Likewise. 2018-02-02 Jason Merrill PR c++/84181 - ICE with lambda parm in template argument. * tree.c (strip_typedefs_expr): Use cp_tree_operand_length. 2018-02-01 Jason Merrill PR c++/84160 - ICE with nested variadic capture. * lambda.c (is_capture_proxy_with_ref): New. (insert_capture_proxy): Don't set DECL_CAPTURED_VARIABLE from a COMPONENT_REF. * expr.c (mark_use): Use is_capture_proxy_with_ref. * constexpr.c (potential_constant_expression_1): Likewise. * semantics.c (process_outer_var_ref): Likewise. 2018-02-01 Marek Polacek PR c++/84125 * typeck.c (build_address): Relax the assert when processing_template_decl. 2018-02-01 Jason Merrill PR c++/84126 - ICE with variadic generic lambda PR c++/84036 PR c++/82249 * pt.c (tsubst_pack_expansion): Handle function parameter_packs in PACK_EXPANSION_EXTRA_ARGS. 2018-02-01 Paolo Carlini PR c++/83796 * call.c (convert_like_real): If w're initializing from {} explicitly call abstract_virtuals_error_sfinae. 2018-01-31 Jason Merrill Jakub Jelinek PR c++/83993 * constexpr.c (cxx_eval_outermost_constant_expr): Build NOP_EXPR around non-constant ADDR_EXPRs rather than clearing TREE_CONSTANT on ADDR_EXPR. 2018-01-31 Jakub Jelinek PR c++/83993 * constexpr.c (diag_array_subscript): Emit different diagnostics if TYPE_DOMAIN (arraytype) is NULL. (cxx_eval_array_reference, cxx_eval_store_expression): For arrays with NULL TYPE_DOMAIN use size_zero_node as nelts. 2018-01-31 Paolo Carlini PR c++/84092 * semantics.c (finish_qualified_id_expr): When handling an UNBOUND_CLASS_TEMPLATE only adjust qualifying_class and expr. 2018-01-31 Marek Polacek PR c++/84138 * cp-gimplify.c (cp_fold): Check if X is an error node before calling useless_type_conversion_p. 2018-01-30 Jason Merrill PR c++/84091 - ICE with local class in lambda in template. * decl2.c (determine_visibility): Look for outer containing template instantiation. PR c++/84098 - ICE with lambda in template NSDMI. * pt.c (instantiate_class_template_1): Ignore more lambdas. 2018-01-29 Jason Merrill PR c++/68810 - wrong location for reinterpret_cast error. * cvt.c (cp_convert_to_pointer): Always build a CONVERT_EXPR when !dofold. 2018-01-29 Marek Polacek PR c++/83996 * constexpr.c (cxx_fold_indirect_ref): Compute ((foo *)&fooarray)[1] => fooarray[1] in offset_int. 2018-01-29 Jason Merrill PR c++/83942 - wrong unused warning with static_cast. * cvt.c (ocp_convert): Call mark_rvalue_use. 2018-01-26 Jason Merrill PR c++/83956 - wrong dtor error with anonymous union * method.c (walk_field_subobs): Variant members only affect deletedness. (maybe_explain_implicit_delete): Pass &deleted_p for diagnostic. PR c++/84036 - ICE with variadic capture. PR c++/82249 * pt.c (tsubst_pack_expansion): When optimizing a simple substitution, pull a single pack expansion out of its pack. PR c++/82514 - ICE with local class in generic lambda. * pt.c (regenerated_lambda_fn_p): Remove. (enclosing_instantiation_of): Don't use it. (tsubst_function_decl): Call enclosing_instantiation_of. * pt.c (lookup_template_class_1): Add sanity check. * name-lookup.c (do_pushtag): Don't add closures to local_classes. 2018-01-25 Jakub Jelinek PR c++/84031 * decl.c (find_decomp_class_base): Ignore unnamed bitfields. Ignore recursive calls that return ret. (cp_finish_decomp): Ignore unnamed bitfields. 2018-01-23 Jason Merrill PR c++/82249 - wrong mismatched pack length error. * pt.c (extract_fnparm_pack, tsubst_pack_expansion): Handle unsubstituted function parameter pack. 2018-01-23 Paolo Carlini PR c++/83921 * decl.c (check_for_uninitialized_const_var): Not static; add bool and tsubst_flags_t parameters; adjust to be used both in constexpr context and not. * constexpr.c (potential_constant_expression_1): Use the above. * cp-tree.h (check_for_uninitialized_const_var): Declare. 2018-01-23 Jason Merrill PR c++/83947 - ICE with auto declarations. * pt.c (do_auto_deduction): Don't deduce from an auto decl. * decl.c (undeduced_auto_decl): Limit to vars and fns. 2018-01-23 David Malcolm PR c++/83974 * pt.c (tsubst_copy_and_build) : Remove early bailout for pointer to member function types. 2018-01-23 Jakub Jelinek PR sanitizer/83987 * tree.c (cp_free_lang_data): Change DECL_VALUE_EXPR of DECL_OMP_PRIVATIZED_MEMBER vars to error_mark_node. 2018-01-23 Nathan Sidwell PR c++/83988 * pt.c (tsubst_baselink): Remove optype assert. * ptree.c (cxx_print_xnode): Print BASELINK_OPTYPE. 2018-01-23 Jakub Jelinek PR c++/83958 * decl.c (cp_finish_decomp): Diagnose if reference structure binding refers to incomplete type. 2018-01-23 Nathan Sidwell Deprecate ARM-era for scope handling * decl.c (poplevel): Flag_new_for_scope is a boolean-like. (cxx_init_decl_processing): Deprecate flag_new_for_scope being cleared. * name-lookup.c (check_for_out_of_scope_variable): Deprecate and cleanup handling. * semantics.c (begin_for_scope): Flag_new_for_scope is boolean-like. (finish_for_stmt, begin_range_for_stmt): Likewise. 2018-01-22 Jason Merrill PR c++/83720 * decl2.c (determine_visibility): Fix template_decl handling instead of blocking it. PR c++/83720 - ICE with lambda and LTO. * decl2.c (determine_visibility): Clear template_decl for function-scope decls. Propagate anonymous linkage from containing function. 2018-01-22 Marek Polacek PR c++/81933 * typeck2.c (split_nonconstant_init_1): Return false if we didn't split out anything. 2018-01-22 Ville Voutilainen PR c++/83895 * decl.c (grokdeclarator): Don't diagnose extra parens on typedefs. 2018-01-19 Jakub Jelinek PR c++/81167 * call.c (joust): Use TREE_TYPE (source) if source is a POINTER_TYPE_P rather than if ! DECL_CONSTRUCTOR_P (w->fn). PR c++/83919 * typeck.c (convert_for_assignment): Suppress warn_ignored_qualifiers for direct enum init. * decl.c (reshape_init): Likewise. 2018-01-19 Marek Polacek * constexpr.c (fold_simple): Simplify. 2018-01-18 Jason Merrill PR c++/83714 * search.c (any_dependent_bases_p): Handle null TREE_BINFO. * pt.c (instantiation_dependent_scope_ref_p): True if any_dependent_bases_p. 2018-01-18 Paolo Carlini * cp-tree.h: Fix comment typo (DECL_NON_TRIVIALLY_INITIALIZED_P vs DECL_NONTRIVIALLY_INITIALIZED_P). 2018-01-18 Jason Merrill PR c++/82461 - constexpr list-initialized member * constexpr.c (potential_constant_expression_1): Check TARGET_EXPR_DIRECT_INIT_P. 2018-01-18 Paolo Carlini PR c++/81013 * decl.c (xref_basetypes): Early return upon error about derived union. 2018-01-18 Nathan Sidwell PR c++/83160 * cp-tree.h (mark_use): Declare. * expr.c (mark_use): Make extern. * call.c (direct_reference_binding): Set inner conv's rvaluedness_matches_p, if it is an identity. (convert_like_real): Mark lvalue or rvalue use for identity as rvaledness_matches_p demands. 2018-01-18 Jakub Jelinek PR c++/83824 * parser.c (attr_chainon): New function. (cp_parser_label_for_labeled_statement, cp_parser_decl_specifier_seq, cp_parser_namespace_definition, cp_parser_init_declarator, cp_parser_type_specifier_seq, cp_parser_parameter_declaration, cp_parser_gnu_attributes_opt): Use it. (cp_parser_member_declaration, cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Likewise. Don't reset prefix_attributes if attributes is error_mark_node. 2018-01-17 Paolo Carlini PR c++/78344 * decl.c (grokdeclarator): Do not append the error_mark_node due to an erroneous optional attribute-specifier-seq. 2018-01-17 Jakub Jelinek PR c++/83897 * cp-gimplify.c (cp_maybe_instrument_return): Handle CLEANUP_POINT_EXPR. 2018-01-17 Paolo Carlini PR c++/81054 * constexpr.c (ensure_literal_type_for_constexpr_object): Return error_mark_node when we give an error. * decl.c (cp_finish_decl): Use the latter. 2018-01-17 Nathan Sidwell PR c++/83287 * init.c (build_raw_new_expr): Scan list for lookups to keep. 2018-01-17 David Malcolm PR c++/83814 * expr.c (fold_for_warn): Move from c-common.c, reducing to just the C++ part. If processing a template, call fold_non_dependent_expr rather than fully folding. 2018-01-17 Jason Merrill PR c++/81067 - redundant NULL warning. * call.c (convert_like_real): Restore null_node handling. 2018-01-17 Jason Merrill PR c++/81843 - ICE with variadic member template. PR c++/72801 * pt.c (unify_pack_expansion): Don't try to deduce enclosing template args. 2018-01-17 David Malcolm PR c++/83799 * pt.c (type_dependent_expression_p): Strip any location wrapper before testing tree codes. (selftest::test_type_dependent_expression_p): New function. (selftest::cp_pt_c_tests): Call it. 2018-01-17 Nathan Sidwell PR c++/83739 * pt.c (tsubst_expr) : Rebuild a range_for if this not a final instantiation. 2018-01-16 Jason Merrill PR c++/83714 - ICE checking return in template. * typeck.c (check_return_expr): Call build_non_dependent_expr. 2018-01-16 Jakub Jelinek PR c++/83817 * pt.c (tsubst_copy_and_build) : If function is AGGR_INIT_EXPR rather than CALL_EXPR, set AGGR_INIT_FROM_THUNK_P instead of CALL_FROM_THUNK_P. PR c++/83825 * name-lookup.c (member_vec_dedup): Return early if len is 0. (resort_type_member_vec, set_class_bindings, insert_late_enum_def_bindings): Use vec qsort method instead of calling qsort directly. 2018-01-15 Martin Sebor PR c++/83588 * class.c (find_flexarrays): Make a record of multiple flexible array members. 2018-01-12 Jason Merrill PR c++/83186 - ICE with static_cast of list-initialized temporary. * typeck.c (build_static_cast): Use build_non_dependent_expr. 2018-01-12 Nathan Sidwell * cp-tree.h (mark_rvalue_use): Add parm name. * expr.c (mark_lvalue_use, mark_lvalue_use_nonread): Move next to mark_rvalue_use. * call.c (convert_like_real): Fix formatting. 2018-01-11 Jason Merrill PR c++/82728 - wrong -Wunused-but-set-variable PR c++/82799 PR c++/83690 * call.c (perform_implicit_conversion_flags): Call mark_rvalue_use. * decl.c (case_conversion): Likewise. * semantics.c (finish_static_assert): Call perform_implicit_conversion_flags. 2018-01-11 Nathan Sidwell * method.c (enum mangling_flags): Delete long-dead enum. 2018-01-10 Paolo Carlini * parser.c (cp_parser_std_attribute_spec): When token_pair::require_open / require_close return false simply return error_mark_node, avoid duplicate cp_parser_error about expected '(' / ')', respectively. 2018-01-10 David Malcolm PR c++/43486 * call.c (null_ptr_cst_p): Strip location wrappers when converting from '0' to a pointer type in C++11 onwards. (conversion_null_warnings): Replace comparison with null_node with call to null_node_p. (build_over_call): Likewise. * cp-gimplify.c (cp_fold): Remove the early bailout when processing_template_decl. * cp-lang.c (selftest::run_cp_tests): Call selftest::cp_pt_c_tests and selftest::cp_tree_c_tests. * cp-tree.h (cp_expr::maybe_add_location_wrapper): New method. (selftest::run_cp_tests): Move decl to bottom of file. (null_node_p): New inline function. (selftest::cp_pt_c_tests): New decl. (selftest::cp_tree_c_tests): New decl. * cvt.c (build_expr_type_conversion): Replace comparison with null_node with call to null_node_p. * error.c (args_to_string): Likewise. * except.c (build_throw): Likewise. * mangle.c (write_expression): Skip location wrapper nodes. * parser.c (literal_integer_zerop): New function. (cp_parser_postfix_expression): Call maybe_add_location_wrapper on the result for RID_TYPEID. Pass true for new "wrap_locations_p" param of cp_parser_parenthesized_expression_list. When calling warn_for_memset, replace integer_zerop calls with literal_integer_zerop, eliminating the double logical negation cast to bool. Eliminate the special-casing for CONST_DECL in favor of the fold_for_warn within warn_for_memset. (cp_parser_parenthesized_expression_list): Add "wrap_locations_p" param, defaulting to false. Convert "expr" to a cp_expr, and call maybe_add_location_wrapper on it when wrap_locations_p is true. (cp_parser_unary_expression): Call maybe_add_location_wrapper on the result for RID_ALIGNOF and RID_SIZEOF. (cp_parser_builtin_offsetof): Likewise. * pt.c: Include "selftest.h". (tsubst_copy): Handle location wrappers. (tsubst_copy_and_build): Likewise. (build_non_dependent_expr): Likewise. (selftest::test_build_non_dependent_expr): New function. (selftest::cp_pt_c_tests): New function. * tree.c: Include "selftest.h". (lvalue_kind): Handle VIEW_CONVERT_EXPR location wrapper nodes. (selftest::test_lvalue_kind): New function. (selftest::cp_tree_c_tests): New function. * typeck.c (string_conv_p): Strip any location wrapper from "exp". (cp_build_binary_op): Replace comparison with null_node with call to null_node_p. (build_address): Use location of operand when building address expression. 2018-01-10 Marek Polacek PR c++/82541 * call.c (build_conditional_expr_1): Check complain before warning. * pt.c (tsubst_copy_and_build) : Suppress -Wduplicated-branches. 2018-01-10 Jakub Jelinek PR c++/81327 * call.c (maybe_warn_class_memaccess): Add forward declaration. Change last argument from tree * to const vec *, adjust args uses and check number of operands too. Don't strip away any nops. Use maybe_constant_value when looking for INTEGER_CST args. Deal with src argument not having pointer type. Check tree_fits_uhwi_p before calling tree_to_uhwi. Remove useless test. (build_over_call): Call maybe_warn_class_memaccess here on the original arguments. (build_cxx_call): Rather than here on converted arguments. 2018-01-10 Paolo Carlini PR c++/81055 * init.c (build_vec_init): Avoid building an INIT_EXPR with error_mark_node as second argument. 2018-01-09 Jakub Jelinek PR c++/83734 * constexpr.c (cxx_eval_statement_list): Ignore DEBUG_BEGIN_STMTs in STATEMENT_LIST. Remove unneeded assert. 2018-01-03 Richard Sandiford Alan Hayward David Sherwood * constexpr.c (cxx_eval_array_reference): Handle polynomial VECTOR_CST_NELTS. (cxx_fold_indirect_ref): Handle polynomial TYPE_VECTOR_SUBPARTS. * call.c (build_conditional_expr_1): Likewise. * decl.c (cp_finish_decomp): Likewise. * mangle.c (write_type): Likewise. * typeck.c (structural_comptypes): Likewise. (cp_build_binary_op): Likewise. * typeck2.c (process_init_constructor_array): Likewise. 2018-01-03 Jakub Jelinek PR c++/83555 * typeck.c (build_static_cast_1): For static casts to reference types, call build_base_path with flag_delete_null_pointer_checks as nonnull instead of always false. When -fsanitize=null, call ubsan_maybe_instrument_reference on the NULL reference INTEGER_CST. * cp-gimplify.c (cp_genericize_r): Don't walk subtrees of UBSAN_NULL call if the first argument is INTEGER_CST with REFERENCE_TYPE. 2018-01-03 Nathan Sidwell PR c++/83667 * method.c (make_alias_for): Copy DECL_CONTEXT. 2018-01-03 Marek Polacek PR c++/83592 * decl.c (grokdeclarator): Don't warn about MVP in typename context. 2018-01-03 Jakub Jelinek PR preprocessor/83602 * name-lookup.c (lookup_name_fuzzy): Don't use macro_use_before_def for builtin macros. PR c++/83634 * cp-gimplify.c (cp_fold) : If the operand folds to error_mark_node, return error_mark_node. Update copyright years. 2018-01-02 Jakub Jelinek PR c++/83556 * tree.c (replace_placeholders_r): Pass NULL as last argument to cp_walk_tree instead of d->pset. If non-TREE_CONSTANT and non-PLACEHOLDER_EXPR tree has been seen already, set *walk_subtrees to false and return. (replace_placeholders): Pass NULL instead of &pset as last argument to cp_walk_tree. 2018-01-02 Nathan Sidwell * constexpr.c (cxx_bind_parameters_in_call): Remove unneeded local lval var. Copyright (C) 2018 Free Software Foundation, Inc. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.