https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85316 Bug 85316 depends on bug 126135, which changed state.
Bug 126135 Summary: a|CST should simplify to a if `(a&CST)==CST` https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126135 What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |DUPLICATE
