1  /* { dg-do compile } */
       2  /* { dg-additional-options "-ftree-pre -Wno-div-by-zero" } */
       3  
       4  int nt;
       5  
       6  void
       7  ja (int os)
       8  {
       9    int *ku = &os, *id = &os;
      10    unsigned int qr = 0;
      11  
      12    for (;;)
      13      {
      14        if (os == *ku)
      15          {
      16            *id = 0;
      17            qr += os != *ku;
      18            id = &qr;
      19          }
      20  
      21        *id &= qr;
      22  
      23        if (os != 0)
      24          {
      25            nt /= 0;
      26            ku = &qr;
      27          }
      28      }
      29  }