1  /* { dg-do compile } */
       2  /* { dg-require-effective-target store_merge } */
       3  /* { dg-options "-O2 -fno-tree-vectorize -fdump-tree-store-merging" } */
       4  
       5  struct bar {
       6    int a;
       7    char b;
       8    char c;
       9    char d;
      10    char e;
      11    char f;
      12    char g;
      13  };
      14  
      15  void
      16  foo1 (struct bar *p)
      17  {
      18    p->b = 0;
      19    p->a = 0;
      20    p->c = 0;
      21    p->d = 0;
      22    p->e = 0;
      23  }
      24  
      25  void
      26  foo2 (struct bar *p)
      27  {
      28    p->b = 0;
      29    p->a = 0;
      30    p->c = 1;
      31    p->d = 0;
      32    p->e = 0;
      33  }
      34  
      35  /* { dg-final { scan-tree-dump-times "Merging successful" 2 "store-merging" } } */