1  /* PR c/54391 - transparent_union typedef'ing inconsistent
       2     { dg-do compile }
       3     { dg-options "-Wall" } */
       4  
       5  typedef union m30_u m30_t;
       6  
       7  union __attribute__((transparent_union)) m30_u {
       8    int u;
       9  };
      10  
      11  double make_double (m30_t);
      12  
      13  double f (void)
      14  {
      15    int bar = 17;
      16    return make_double (bar);
      17  }