1  /* { dg-do compile } */
       2  /* { dg-options "-O3 -fno-tree-loop-vectorize -fno-tree-slp-vectorize -fno-inline -fdump-tree-pcom-details" } */
       3  
       4  typedef struct {
       5    int a, b;
       6  } CompandSegment;
       7  int a;
       8  CompandSegment *b;
       9  void fn1() {
      10    for (; a; a++)
      11      b[a].a = b[a].b = b[a - 1].a = b[a - 1].b = 0;
      12  }
      13  /* { dg-final { scan-tree-dump-times "Store-stores chain" 2 "pcom"} } */