1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-optimized -fno-tree-dce" } */
       3  
       4  int foo (int a)
       5  {
       6    int c = 0;
       7    if (a != 0)
       8      {
       9        __builtin_popcount (a);
      10        c = 2;
      11      }
      12    return c;
      13  }
      14  
      15  /* { dg-final { scan-tree-dump-times "if " 1 "optimized" } } */