https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55004 Bug 55004 depends on bug 85474, which changed state.
Bug 85474 Summary: unspecified string literal comparison accepted in constexpr context https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85474 What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |DUPLICATE