https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110000
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- I am getting a feeling this attribute is well defined enough. Is it really just supposed to block explicit instantiation of templates? Is there a decent set of testcases that can be used to match up the implementations here? Because I suspect without those it will be implemented slightly different.
