https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77728
--- Comment #41 from Jakub Jelinek <jakub at gcc dot gnu.org> --- That is true, but we've got only a single bugreport about this since the 5.2 release (21 months), so it doesn't trigger that often. For static data members the ABI is self-consistent, for some template types in templates it is indeed not if the instantiation is different before the instantiation of those templates. By changing the ABI now in 5/6 I'm afraid we'd break far more code than is already broken.
