http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47298
--- Comment #11 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-07-05 10:30:09 UTC --- > Oh, and you can disable cunrolli already via -fdisable-tree-cunrolli. Indeed, I always forget that we have it in 4.7 and above.