1  /* { dg-do compile } */
       2  /* { dg-additional-options "-mssse3" { target { i?86-*-* x86_64-*-* } } } */
       3  
       4  #define byte unsigned char
       5  
       6  void
       7  matrix_mul (byte *in, byte *out, int size)
       8  {
       9    int i;
      10    for (i = 0; i < size; i++)
      11      {
      12        out[0] = in[0] + in[1] + in[3];
      13        out[1] = in[0] + in[2] + in[4];
      14        out[2] = in[1] + in[2] + in[4];
      15        in += 4;
      16        out += 3;
      17      }
      18  }
      19  
      20  /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { i?86-*-* x86_64-*-* } } } } */