1  /* { dg-do compile } */
       2  /* { dg-options "-O3 -ftree-vectorize" } */
       3  
       4  int col[8];
       5  int extend_options(int w, int h, int *map, int x, int y, int index)
       6  {
       7    int dx, dy;
       8    for (dx = -1; dx <= +1; dx++)
       9      {
      10        int index = (dy < 0 ? 6-dx : dy > 0 ? 2+dx : 2*(1+dx));
      11        if (x+dx >= 0 && x+dx < w && y+dy >= 0 && y+dy < h)
      12          col[index] = map[(y+dy)*w+(x+dx)];
      13        col[index] = -1;
      14      }
      15  }