https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55004 Bug 55004 depends on bug 69681, which changed state.
Bug 69681 Summary: C/C++ FEs do not consider comparisons of distinct function pointers to be constant expressions https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69681 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED