gcc/testsuite/gcc.c-torture/execute/931102-2.c


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typedef union
{
  long align;
  struct
    {
      short h, l;
    } b;
} T;

f (x)
     int x;
{
  int num = 0;
  T reg;

  reg.b.l = x;
  while ((reg.b.l & 1) == 0)
    {
      num++;
      reg.b.l >>= 1;
    }
  return num;
}

main ()
{
  if (f (2) != 1)
    abort ();
  exit (0);
}