1  /* { dg-do compile } */
       2  /* { dg-options "-O3 -mavx2 -fdump-tree-vect-details" } */
       3  /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
       4  
       5  unsigned int a[1024] __attribute__((aligned (32)));
       6  
       7  __attribute__((noinline, noclone)) void
       8  foo (void)
       9  {
      10    int i;
      11    for (i = 0; i < 1024; i++)
      12      {
      13        int j = i & 31;
      14        a[i] = (a[i] << j) | (a[i] >> ((-j) & 31));
      15      }
      16  }