https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65450
--- Comment #9 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > Also crashes with -mtune=amdfam10. But in this case it even > crashes when compiled with 4.9.2. Revision r204000 (2013-10-24) is OK, r204945 (2013-11-18) is not. > Works fine with -fwrapv... Confirmed.