https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65952
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Depends on| |65951 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- I think the issue is really 65951. >_6 = _5 * 16; That is a size_t multiply which is an unsigned 64bit multiply. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65951 [Bug 65951] [AArch64] Will not vectorize multiplication by long constant