1  /* { dg-do run } */
       2  /* { dg-options "-O2" } */
       3  
       4  extern void abort (void);
       5  struct S {
       6      int *i[4];
       7      int *p1;
       8      int *p2;
       9      int *p3;
      10      int *p4;
      11  };
      12  int **b;
      13  int main()
      14  {
      15    int i = 1;
      16    struct S s;
      17    s.p3 = &i;
      18    int **p;
      19    if (b)
      20      p = b;
      21    else
      22      p = &s.i[2];
      23    p += 4;
      24    if (!b)
      25      **p = 0;
      26    if (i != 0)
      27      abort ();
      28    return i;
      29  }