https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 67427, which changed state.
Bug 67427 Summary: [concepts] Subsumption dependence on template parameter ordering https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67427 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |INVALID