1  /* PR tree-optimization/96239 */
       2  /* { dg-do compile { target { ilp32 || lp64 } } } */
       3  /* { dg-options "-O3 -fdump-tree-optimized" } */
       4  /* { dg-final { scan-tree-dump " r>> 8;" "optimized" { target bswap } } } */
       5  
       6  union U { unsigned char c[2]; unsigned short s; };
       7  
       8  unsigned short
       9  foo (unsigned short x)
      10  {
      11    union U u;
      12    u.s = x;
      13    unsigned char v = u.c[0];
      14    unsigned char w = u.c[1];
      15    u.c[0] = w;
      16    u.c[1] = v;
      17    return u.s;
      18  }