https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111258 Bug 111258 depends on bug 111284, which changed state.
Bug 111284 Summary: [12 Regression] Some passing-by-value parameters are mishandled since GCC 9, affecting libstdc++'s constexpr std::string https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111284 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED