https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 80750, which changed state.
Bug 80750 Summary: [concepts] noexcept specifier operands are allowed but ignored in compound requirements https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80750 What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED