https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19466 Bug 19466 depends on bug 97747, which changed state.
Bug 97747 Summary: [12/13/14/15 Regression] missed combine opt with logical ops after zero extended load https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97747 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED