https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 81997, which changed state.
Bug 81997 Summary: [7/8 Regression] segfault while instantiating constrained function template https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81997 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |DUPLICATE