https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109829
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #6) > I need to double check if == 1 will show up here though. The only thing we know about __builtin_signbit is that is 0 or non-zero. The exact value is unspecified for the non-zero case. So we can only optimize the !=/== 0 cases.
