https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111694
Alexander Monakov <amonakov at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |amonakov at gcc dot gnu.org Component|web |tree-optimization Summary|Wrong behavior for signbit |[13/14 Regression] Wrong |of negative zero when |behavior for signbit of |optimizing |negative zero when | |optimizing Keywords| |wrong-code --- Comment #1 from Alexander Monakov <amonakov at gcc dot gnu.org> --- Reduced: #define signbit(x) __builtin_signbit(x) static void test(double l, double r) { if (l == r && (signbit(l) || signbit(r))) ; else __builtin_abort(); } int main() { test(0.0, -0.0); }