1  /* PR target/7559
       2     This testcase was miscompiled on x86-64, because classify_argument
       3     wrongly computed the offset of nested structure fields.  */
       4  
       5  extern void abort (void);
       6  
       7  struct A
       8  {
       9    long x;
      10  };
      11  
      12  struct R
      13  {
      14    struct A a, b;
      15  };
      16  
      17  struct R R = { 100, 200 };
      18  
      19  void f (struct R r)
      20  {
      21    if (r.a.x != R.a.x || r.b.x != R.b.x)
      22      abort ();
      23  }
      24  
      25  struct R g (void)
      26  {
      27    return R;
      28  }
      29  
      30  int main (void)
      31  {
      32    struct R r;
      33    f(R);
      34    r = g();
      35    if (r.a.x != R.a.x || r.b.x != R.b.x)
      36      abort ();
      37    return 0;
      38  }