1  /* PR c/52577 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-Wunused" } */
       4  
       5  typedef int V __attribute__((vector_size (sizeof (int) * 4)));
       6  
       7  void
       8  f1 (V *p)
       9  {
      10    V mask = { 1, 2, 3, 0 };
      11    *p = __builtin_shuffle (*p, mask);
      12  }
      13  
      14  void
      15  f2 (V *p, V *q)
      16  {
      17    V mask = { 1, 2, 3, 0 };
      18    *p = __builtin_shuffle (*p, *q, mask);
      19  }
      20  
      21  void
      22  f3 (V *p, V *mask)
      23  {
      24    V a = { 1, 2, 3, 0 };
      25    *p = __builtin_shuffle (a, *mask);
      26  }
      27  
      28  void
      29  f4 (V *p, V *mask)
      30  {
      31    V a = { 1, 2, 3, 0 };
      32    V b = { 2, 3, 4, 1 };
      33    *p = __builtin_shuffle (a, b, *mask);
      34  }