http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59363
--- Comment #17 from Markus Trippelsdorf <octoploid at yandex dot com> --- (In reply to H.J. Lu from comment #15) > It may be a latent bug in amdfam10 scheduler. Before z.i.234r.sched2. > there are BTW -mtune=opteron is also affected.