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/* PR rtl-optimization/46248 */

struct S

{

  int s;

};

void

foo (unsigned char *x, int y, struct S *z)

{

  const int l1 = y;

  const int l2 = y + l1;

  const int l3 = y + l2;

  const int l4 = y + l3;

  const int l5 = y + l4;

  const int l6 = y + l5;

  const int l7 = y + l6;

  int i;

  for (i = 0; i < 8; i++)

    {

      int a = x[l3] - x[l4];

      int b = x[l4] - x[l5];

      int c = x[l5] - x[l6];

      int d = (b >= 0 ? b : -b) - (((a >= 0 ? a : -a) + (c >= 0 ? c : -c)) >> 1);

      if (d < z->s * 2)

        {

          int v = d * (-b > 0 ? 1 : -1);

          x[l2] += v >> 3;

          x[l7] -= v >> 3;

        }

    }

}