1  /* { dg-do compile } */
       2  /* { dg-options "-O" } */
       3  
       4  int bit_shift (long int x)
       5  {
       6    int i, n;
       7  
       8    for (i = n = 0; x && (i < (sizeof(long) * 8)); ++i, x >>= 1)
       9      n += (int)(x & 1L);
      10    return n;
      11  }
      12  
      13  /* { dg-final { scan-assembler-not "cmp" { xfail *-*-* } } } */