https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97459
--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 49633 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49633&action=edit gcc11-pr97459-wip.patch Completely untested patch, so far only for double-word unsigned modulo.