https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947 Bug 53947 depends on bug 67800, which changed state.
Bug 67800 Summary: [6 Regression] Missed vectorization opportunity on x86 (DOT_PROD_EXPR in non-reduction) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67800 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED