https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91678
--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Sorry, I'll try to respond to https://gcc.gnu.org/ml/gcc-patches/2019-09/msg01042.html soon. It doesn't seem to fix Comment 4 though, will have to look why :/.