1  /* PR middle-end/91001 */
       2  /* PR middle-end/91105 */
       3  /* PR middle-end/91106 */
       4  
       5  struct __attribute__((packed)) S { short b; char c; };
       6  struct T { short b, c, d; };
       7  struct __attribute__((packed)) R { int b; char c; };
       8  union __attribute__((aligned(128), transparent_union)) U { struct S c; } u;
       9  union __attribute__((aligned(32), transparent_union)) V { struct T c; } v;
      10  union __attribute__((aligned(32), transparent_union)) W { struct R c; } w;
      11  void foo (union U);
      12  void bar (union V);
      13  void baz (union W);
      14  
      15  void
      16  qux (void)
      17  {
      18    foo (u);
      19  }
      20  
      21  void
      22  quux (void)
      23  {
      24    bar (v);
      25  }
      26  
      27  void
      28  corge (void)
      29  {
      30    baz (w);
      31  }