https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100499
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to work| |11.1.0 Ever confirmed|0 |1 Keywords| |needs-bisection, wrong-code Status|UNCONFIRMED |NEW CC| |rguenth at gcc dot gnu.org Last reconfirmed| |2021-05-10 Known to fail| |10.3.1, 8.4.1, 9.3.1 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Confirmed. It looks like GCC 11 works (it's not vectorizing). I wonder what fixed it.