http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49069
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-17 16:10:45 UTC --- Created attachment 29194 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29194 gcc48-pr49069-2.patch Another possible fix. Or Steven's fix (+ testcase) if it works. It will be optimized by RTL optimizers anyway. Just asserting that an unlikely, but possible thing, won't happen, is wrong. Can we get this fixed for 4.8?