1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-fre1" } */
       3  
       4  struct f {
       5    float a;
       6    float b;
       7    float c;
       8    float d;
       9  };
      10  
      11  struct f a;
      12  
      13  void h(float, float, float, float);
      14  
      15  void g(void)
      16  {
      17    float a1 = a.a, b = a.b, c = a.c, d = a.d;
      18    a.a = a1;
      19    a.b = b;
      20    a.c = c;
      21    a.d = d;
      22    h(a1, b, c, d);
      23  }
      24  
      25  /* { dg-final { scan-tree-dump-not "a\\\.? = " "fre1" } } */