https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394
--- Comment #8 from Eric Gallager <egallager at gcc dot gnu.org> --- (In reply to Jeffrey A. Law from comment #7) > -O0 has none of the analysis necessary and I believe you get no warnings at > all. > > A minimum of -Og is needed, but -Og is inherently going to give many false > positives. So is it worth trying to fix this then?