https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55004 Bug 55004 depends on bug 85428, which changed state.
Bug 85428 Summary: constexpr pointer equality comparison not considered constant expression https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85428 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED