1  /* PR tree-optimization/93582 */
       2  /* { dg-do compile { target int32 } } */
       3  /* { dg-options "-O2 -fdump-tree-fre1" } */
       4  /* { dg-final { scan-tree-dump "return 1;" "fre1" } } */
       5  
       6  union U {
       7    struct S { int a : 1, b : 4, c : 27; } s;
       8    struct T { int d : 2; int e : 2; int f : 28; } t;
       9  };
      10  
      11  int
      12  foo (void)
      13  {
      14    union U u;
      15    u.s.b = 10;
      16    return u.t.e;
      17  }