/* { dg-do run } */
/* { dg-require-effective-target popcountl } */
/* { dg-options "-O2 -fno-tree-ch -fdump-tree-optimized" } */

int
__attribute__ ((noinline, noclone))
foo (long b)
{
    int c = 0;

    while (b) {
	b &= b - 1;
	c++;
    }
    return c;
}

int main()
{
  if (foo (7) != 3)
   __builtin_abort ();
  if (foo (0) != 0)
   __builtin_abort ();
  if (foo (0xff) != 8)
   __builtin_abort ();
  return 0;
}

/* { dg-final { scan-tree-dump-times "__builtin_popcount" 1 "optimized" } } */