https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38077
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #4) > This was fixed for GCC 5.5.0 by r5-10168-g26736ac3d17699 and GCC 6.1.0+ by > r6-5413-g9dc39706b4afc3 . I should say that was the last patch which was needed to fix this, there was most likely others that happened beforehand.
