https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80421
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Martin Liška from comment #3) > Confirmed, only GCC 5.x is affected. Started to be fixed on trunk by > r227307. adding Jeff to CC. That might be covering up a latent bug depending on where the failure was introduced.
