https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87706
--- Comment #2 from Jan Hubicka <hubicka at gcc dot gnu.org> --- cow is already dead at profile time (if it would not, we would end up using the counter). It seems to me that one remove unreachable code pass is missing. We used to remove unreachable code after early optimizations. Why we don't do that anymore?
