1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -ftree-loop-linear" } */
       3  /* { dg-require-effective-target size32plus } */
       4  
       5  int foo(int *p, int n)
       6  {
       7    int i, j, k = 0;
       8  
       9    /* This is a reduction: there is a scalar dependence that cannot be
      10       removed by rewriting IVs.  This code cannot and should not be
      11       transformed into a perfect loop.  */
      12    for (i = 0; i < 2; ++i, p += n)
      13      for (j = 0; j < 2; ++j)
      14        k += p[j];
      15  
      16    return k;
      17  }