http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56535
--- Comment #5 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- This has been fixed between r199406 (ICE) and r199412 (OK). r199409 seems the most likely candidate. If nobody care to understand why, I'll close this PR as fixed in the coming week.