https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68290 Bug 68290 depends on bug 68434, which changed state.
Bug 68434 Summary: [concepts] function tsubst sets TYPE_CANONICAL before setting a type's PLACEHOLDER_TYPE_CONSTRAINTS https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68434 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED