https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119429
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Desmond Rhodes from comment #7) > (In reply to Andrew Pinski from comment #4) > > See PR 91547 also. > > > > Basically clang's -fsanitize=integer is useless for well defined C/C++ code > > and should NOT be used unless you how to filter out the bad reports. > > I believe that this is a good report and it is useful. > > Tracking subtle bugs is difficult, and I will continue to turn on > `-fsanitize=integer` in my development. > > If the construct of `size_t __nargs = -1` isn't fixed, it will prevent > people from using the standard library. Not really. It just means clangs option fsanitize=interger is broken for well defined code and should not be used for code in general. If anything this is a clang bug.