https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91965
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|normal |enhancement Last reconfirmed|2019-10-04 00:00:00 |2021-8-10 --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Note I noticed clang does not vectorize bar because they convert (1048575 - a) << 44 to (a * -17592186044416ull) -17592186044416. So right now at least we vectorize the loop.