https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 84423, which changed state.
Bug 84423 Summary: [8 Regression] [concepts] ICE with invalid using declaration https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84423 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED
