http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44334
--- Comment #15 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2010-12-19 13:37:17 UTC --- > Could you try if this solves the problem? The patch in comment #14 fixed the problem on x86_64-apple-darwin10 (I cannot say anything for AMD). I have run the polyhedron tests without noticing any slow down. I'll do a clean regstrap tonight. Thanks for the patch.