https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68580
--- Comment #3 from vries at gcc dot gnu.org --- (In reply to Dmitry Vyukov from comment #2) > If you change types of: > > int v; > int q; > int o; > > to 'long long', does it fix the failure? As long as I don't have a reliable way to reproduce the failure, I can't answer that question.