https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79161
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- I think this is fixed for GCC 10 by r10-1052-gc29c92c789d9 (and the related patch after that which disable it for the C front-end but enables it for C++11+)
