https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 81918, which changed state.
Bug 81918 Summary: [7/8 Regression] muddled Concept confuses compiler (segfault) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81918 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |DUPLICATE