1  /* { dg-do compile } */
       2  /* { dg-additional-options "-fno-tree-dce -Ofast" } */
       3  
       4  long int x1;
       5  int fr;
       6  
       7  int
       8  us (int sk, int jx)
       9  {
      10    while (sk < 1)
      11      {
      12        jx *= 2;
      13        fr += x1 + 1;
      14        ++sk;
      15      }
      16  
      17    return jx;
      18  }