https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87403 Bug 87403 depends on bug 91428, which changed state.
Bug 91428 Summary: Please warn on if constexpr (std::is_constant_evaluated()) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91428 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED