http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56403
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-02-20 11:52:25 UTC --- Alternatively build_zero_init_1 could use RECORD_OR_UNION_CODE_P (TREE_CODE (type)) instead of CLASS_TYPE_P (type).