https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19987 Bug 19987 depends on bug 96671, which changed state.
Bug 96671 Summary: Failure to optimize a 3 xor+and pattern to xor+andnot https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96671 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED