http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56637 --- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2013-03-16 18:16:10 UTC --- What happens if you don't use the graphite options '-floop-strip-mine -floop-block'? How big is your "small test case" and on which libraries does it depends?