https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55004 Bug 55004 depends on bug 85437, which changed state.
Bug 85437 Summary: [8 Regression] member pointer static upcast rejected in a constexpr context https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85437 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED
