1  /* { dg-do run } */
       2  /* { dg-options "-O3 -fno-tree-loop-vectorize -fdump-tree-pcom-details" } */
       3  
       4  int a[7];
       5  char b;
       6  void abort (void);
       7  
       8  int main() {
       9    b = 4;
      10    for (; b; b--) {
      11      a[b] = b;
      12      a[b + 2] = 1;
      13    }
      14    if (a[0] != 0 || a[1] != 1 || a[2] != 2
      15        || a[3] != 1 || a[4] != 1 || a[5] != 1 || a[6] != 1)
      16      abort ();
      17    return 0;
      18  }
      19  
      20  /* { dg-final { scan-tree-dump-times "Store-stores chain" 1 "pcom" } } */