1  /* { dg-do compile } */
       2  /* { dg-options "-O -ftree-vectorize -mavx512f" } */
       3  
       4  extern void abort (void);
       5  
       6  typedef struct {
       7     unsigned int a;
       8     unsigned int b;
       9  } ii;
      10  
      11  void foo (unsigned short *arr, ii *iarr)
      12  {
      13    ii *iptr = iarr;
      14    unsigned short res[128];
      15    ii ires[128];
      16    int i;
      17    for (i = 0; i < 128; i++)
      18      {
      19        ires[i].a = iptr->b - iptr->a;
      20        ires[i].b = iptr->b + iptr->a;
      21        iptr++;
      22      }
      23    for (i = 0; i < 128; i++)
      24      {
      25        if (res[i] != arr[i]
      26            || ires[i].a != iarr[i].b - iarr[i].a
      27            || ires[i].b != iarr[i].b + iarr[i].a)
      28          abort ();
      29      }
      30  }