1  /* PR tree-optimization/29637 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2 -ftree-vectorize" } */
       4  
       5  typedef struct __attribute__ ((aligned (8)))
       6  {
       7      short a, b, c, d;
       8  } A;
       9  
      10  typedef struct
      11  {
      12    A a[24];
      13  } B;
      14  
      15  static const A b = { 0, 0, 1, -1 };
      16  
      17  void
      18  foo (B *x)
      19  {
      20    int i;
      21    for (i = 0; i <= 20; i += 4)
      22      x->a[i] = b;
      23  }