1  /* { dg-do compile } */
       2  /* { dg-options "-O1 -fdump-tree-optimized" } */
       3  
       4  typedef struct { char f[4]; } __attribute__((aligned (4))) s;
       5  
       6  void a(s *s1, s *s2)
       7  {
       8    *s1 = *s2;
       9  }
      10  
      11  /* Struct copies should not be split into members.  */
      12  /* { dg-final { scan-tree-dump "\\\*s1_.\\\(D\\\) = \\\*s2"  "optimized"} } */