1  /* This testcase exposed the same bug as PR 15342.  */
       2  /* { dg-options "-O2 -frename-registers -fno-schedule-insns" } */
       3  
       4  void *memcpy (void *, const void *, __SIZE_TYPE__);
       5  
       6  void f (int n, int (*x)[4])
       7  {
       8    while (n--)
       9      {
      10        int f = x[0][0];
      11        if (f <= 0)
      12  	memcpy (&x[1], &x[0], sizeof (x[0]));
      13        else
      14  	memcpy (&x[f], &x[0], sizeof (x[0]));
      15        f = x[0][2];
      16        x[0][1] = f;
      17      }
      18  }