https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91465
--- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Unfortunately that ship has sailed. What we need is a more complete solution: <https://gcc.gnu.org/ml/gcc-patches/2020-03/msg00085.html>. It's not a trivial problem and I'm not sure if the backport will be viable. Sorry about that.
