https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86944
ktkachov at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW CC| |ktkachov at gcc dot gnu.org Component|target |tree-optimization Ever confirmed|0 |1 --- Comment #1 from ktkachov at gcc dot gnu.org --- Confirmed on the branches from GCC 7 onwards. Doesn't look like a target bug to me though. Looks like the vectoriser doesn't deal with some alignment info properly (to my uneducated eye).