// { dg-do run } // { dg-options "-O2" } int ipos = 0; int f (int world) { int searchVolume = world; int currentVolume = 0; while (currentVolume != searchVolume && searchVolume) { currentVolume = searchVolume; if (ipos != 0) searchVolume = 0; else searchVolume = 1; } return (currentVolume); } int main() { const int i = f (1111); __builtin_printf ("%d\n", (int)(i)); if (i != 1) __builtin_abort (); return 0; }