http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52636
--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2012-03-20 18:35:50 UTC --- The patch in comment #2 fixes the PR without side effect on the polyhedron test suite (AFAICT;-). Currently bootstrapping r185584, regtesting scheduled for tonight. Thanks for the quick fix.