1 /* PR tree-optimization/61725 */ 2 3 int main()4 main () 5 { 6 int x; 7 for (x = -128; x <= 128; x++) 8 { 9 int a = __builtin_ffs (x); 10 if (x == 0 && a != 0) 11 __builtin_abort (); 12 } 13 return 0; 14 } 15