1  /* { dg-do compile } */
       2  
       3  typedef short DCTELEM;
       4  typedef unsigned char uint8_t;
       5  
       6  void diff_pixels_c(DCTELEM *__restrict__ block, const uint8_t *s1,
       7  		   const uint8_t *s2, int stride)
       8  {
       9    int i;
      10  
      11    for(i=0;i<8;i++)
      12      {
      13        block[0] = s1[0] - s2[0];
      14        block[1] = s1[1] - s2[1];
      15        block[2] = s1[2] - s2[2];
      16        block[3] = s1[3] - s2[3];
      17        block[4] = s1[4] - s2[4];
      18        block[5] = s1[5] - s2[5];
      19        block[6] = s1[6] - s2[6];
      20        block[7] = s1[7] - s2[7];
      21        s1 += stride;
      22        s2 += stride;
      23        block += 8;
      24      }
      25  }
      26  
      27  /* { dg-final { scan-tree-dump "vectorized 1 loops" "vect" { target { vect_int && { vect_unpack && vect_hw_misalign } } } } } */