https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90887
--- Comment #10 from Tobias Burnus <burnus at gcc dot gnu.org> --- (In reply to Tobias Burnus from comment #9) > cp_parser_jump_statement (for RID_RETURN) [...] The tree is already different for cp_parser_identifier (called via <- cp_parser_class_name <- cp_parser_type_name <- cp_parser_simple_type_specifier <- cp_parser_postfix_expression <- ... <- cp_parser_jump_statement). I think I annotated (printf debugging) all code which sets TYPE_BINFO or TYPE_NEEDS_CONSTRUCTING - without seeing a difference. Still, the setting differs for _Res. [Ideas how to debug this best are welcome; as reducing it didn't work, it is easy to get lost.]