https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947 Bug 53947 depends on bug 63168, which changed state.
Bug 63168 Summary: loop header copying fails - not vectorized: latch block not empty https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63168 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED