1  /* { dg-do compile } */
       2  /* { dg-additional-options "-O3" } */
       3  
       4  typedef struct {
       5    double a, b;
       6  } c;
       7  typedef struct {
       8    c d;
       9    long coordinates;
      10  } e;
      11  int f;
      12  c g;
      13  e h;
      14  void k(int);
      15  int n();
      16  void j() { int i; k(i); }
      17  void k(int l) {
      18    double a;
      19    int b;
      20    c m[4];
      21    long i;
      22    for (; l;)
      23      do {
      24        g.a = b ?: a;
      25        m[3] = g;
      26        if (f)
      27          m[0] = m[1] = m[3];
      28        i = 0;
      29        for (; i < 4; i++)
      30          (&h + i)->d = m[i];
      31      } while (n());
      32  }