https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121096
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hjl at gcc dot gnu.org --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- gcc_assert (targetm.use_by_pieces_infrastructure_p (len, align, memsetp ? SET_BY_PIECES : STORE_BY_PIECES, optimize_insn_for_speed_p ())); I suspect r16-2047-g401199377c5004 . Maybe a disconnect due to the -Os.