https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115127
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed|2024-05-18 00:00:00 |2024-06-02 Status|UNCONFIRMED |NEW Keywords|needs-bisection, | |needs-reduction | Ever confirmed|0 |1 Summary|[12/13/14/15 Regression] |[12/13/14/15 Regression] |passing zero to |passing zero to |__builtin_ctz() check |__builtin_ctz() check |missing |missing since r12-151 --- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Reduced testcase: ``` int f(int a) { return __builtin_ctz(a) == 0; } int main(void) { __builtin_printf("%d\n", f(0)); } ``` Caused by r12-151-g75f8900159133c .