1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -floop-nest-optimize" } */
       3  
       4  int x3, za;
       5  int hg[1];
       6  
       7  void
       8  yw (int dq)
       9  {
      10    const int r7 = 2;
      11  
      12    while (dq < 1)
      13      {
      14        for (x3 = 0; x3 < r7; ++x3)
      15  	for (za = 0; za < r7; ++za)
      16  	  hg[1] = 0;
      17        ++dq;
      18      }
      19  
      20    x3 = 0;
      21    while (x3 < r7)
      22      {
      23        ++x3;
      24        if (x3 == 0)
      25  	break;
      26      }
      27  }