1  /* PR tree-optimization/88709 */
       2  /* { dg-do run { target int32 } } */
       3  /* { dg-require-effective-target store_merge } */
       4  /* { dg-options "-O2 -fno-tree-vectorize -fdump-tree-store-merging-details" } */
       5  /* { dg-final { scan-tree-dump "New sequence of 3 stores to replace old one of 6 stores" "store-merging" { target { le && { ! arm*-*-* } } } } } */
       6  /* { dg-final { scan-tree-dump "New sequence of \[34] stores to replace old one of 6 stores" "store-merging" { target { be && { ! arm*-*-* } } } } } */
       7  
       8  struct T { char a[1024]; };
       9  
      10  __attribute__((noipa)) void
      11  bar (struct T *t)
      12  {
      13    int x = 0x506;
      14    if (__builtin_memcmp (&t->a[97], &x, sizeof (x)))
      15      __builtin_abort ();
      16    __builtin_memset (&t->a[97], '\0', sizeof (x));
      17    for (int i = 0; i < 8; ++i)
      18      if (t->a[i] != ((i == 54) + 2 * (i == 52) + 3 * (i == 95) + 4 * (i == 96)))
      19        __builtin_abort ();
      20  }
      21  
      22  int
      23  main ()
      24  {
      25    struct T t = {};
      26    t.a[54] = 1;
      27    t.a[52] = 2;
      28    t.a[95] = 3;
      29    t.a[96] = 4;
      30    int x = 0x506;
      31    __builtin_memcpy (&t.a[97], &x, sizeof (x));
      32    bar (&t);
      33  }