1  /* { dg-do compile } */
       2  /* { dg-options "-O1 -ftree-loop-linear -fcompare-debug" } */
       3  /* { dg-xfail-if "" { powerpc-ibm-aix* } } */
       4  
       5  extern int A[];
       6  
       7  void
       8  foo ()
       9  {
      10    int i, j;
      11    for (i = 0; i < 4; i++)
      12      for (j = 255; j >= 0; j--)
      13        A[j] = 0;
      14  }