1  /* { dg-do run } */
       2  /* { dg-require-effective-target popcountl } */
       3  /* { dg-options "-O2 -fno-tree-ch -fdump-tree-optimized" } */
       4  
       5  int
       6  __attribute__ ((noinline, noclone))
       7  foo (long b)
       8  {
       9      int c = 0;
      10  
      11      while (b) {
      12  	b &= b - 1;
      13  	c++;
      14      }
      15      return c;
      16  }
      17  
      18  int main()
      19  {
      20    if (foo (7) != 3)
      21     __builtin_abort ();
      22    if (foo (0) != 0)
      23     __builtin_abort ();
      24    if (foo (0xff) != 8)
      25     __builtin_abort ();
      26    return 0;
      27  }
      28  
      29  /* { dg-final { scan-tree-dump-times "__builtin_popcount|\\.POPCOUNT" 1 "optimized" } } */