1  /* { dg-do compile } */
       2  /* { dg-require-effective-target popcountl } */
       3  /* { dg-options "-O2 -fdump-tree-phiopt4 -fdump-tree-optimized" } */
       4  
       5  int PopCount (long b) {
       6      int c = 0;
       7  
       8      while (b) {
       9  	b &= b - 1;
      10  	c++;
      11      }
      12      return c;
      13  }
      14  
      15  /* { dg-final { scan-tree-dump-times "__builtin_popcount|\\.POPCOUNT" 1 "optimized" } } */
      16  /* { dg-final { scan-tree-dump-times "if" 0 "phiopt4" } } */