https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 92089, which changed state.
Bug 92089 Summary: [concepts] requires-expression results in hard error during constraint checking https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92089 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |DUPLICATE