https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947 Bug 53947 depends on bug 114061, which changed state.
Bug 114061 Summary: GCC fails vectorization when using __builtin_prefetch https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114061 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED