1  /* { dg-do compile } */
       2  /* { dg-options "-fdump-tree-gimple" } */
       3  
       4  union X { int i; double x; };
       5  
       6  int foo (union X *p)
       7  {
       8    union X x = *p;
       9    return x.x;
      10  }
      11  
      12  /* { dg-final { scan-tree-dump-not "x.0" "gimple" } } */