https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68810
--- Comment #17 from David Malcolm <dmalcolm at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #16) > David, does your patchset solve this? The v2 version of the kit https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00880.html doesn't affect it. The work-in-progress v3 version of the kit https://gcc.gnu.org/ml/gcc-patches/2017-11/msg01588.html actually breaks the warning, stopping it from appearing altogether (this turns out to be one of the regressions mentioned in that post). I'm investigating why.