https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947 Bug 53947 depends on bug 79934, which changed state.
Bug 79934 Summary: Vectorization of descending-index loops can produce unnecessary permutes https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79934 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |DUPLICATE