https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 91405, which changed state.
Bug 91405 Summary: [concepts] internal compiler error: in synthesize_implicit_template_parm, at cp/parser.c:41206 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91405 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED