1  /* PR54219 */
       2  /* { dg-do run } */
       3  
       4  extern void abort (void);
       5  
       6  typedef int v2si __attribute__((vector_size(2*sizeof(int))));
       7  
       8  void f(v2si *x)
       9  {
      10    /* This requires canonicalization of the mask to { 1, 0 }.  */
      11    *x = __builtin_shuffle(*x, *x, (v2si) { 5, 0 });
      12  }
      13  
      14  int main()
      15  {
      16    v2si y = { 1, 2 };
      17    f(&y);
      18    if (y[0] != 2 || y[1] != 1)
      19      abort ();
      20    return 0;
      21  }