Subversion Repositories openrisc

/* PR rtl-optimization/23560 */

struct rtattr

{

  unsigned short rta_len;

  unsigned short rta_type;

};

__attribute__ ((noinline))

int inet_check_attr (void *r, struct rtattr **rta)

{

  int i;

  for (i = 1; i <= 14; i++)

    {

      struct rtattr *attr = rta[i - 1];

      if (attr)

        {

          if (attr->rta_len - sizeof (struct rtattr) < 4)

            return -22;

          if (i != 9 && i != 8)

            rta[i - 1] = attr + 1;

        }

    }

  return 0;

}

extern void abort (void);

int

main (void)

{

  struct rtattr rt[2];

  struct rtattr *rta[14];

  int i;

  rt[0].rta_len = sizeof (struct rtattr) + 8;

  rt[0].rta_type = 0;

  rt[1] = rt[0];

  for (i = 0; i < 14; i++)

    rta[i] = &rt[0];

  if (inet_check_attr (0, rta) != 0)

    abort ();

  for (i = 0; i < 14; i++)

    if (rta[i] != &rt[i != 7 && i != 8])

      abort ();

  for (i = 0; i < 14; i++)

    rta[i] = &rt[0];

  rta[1] = 0;

  rt[1].rta_len -= 8;

  rta[5] = &rt[1];

  if (inet_check_attr (0, rta) != -22)

    abort ();

  for (i = 0; i < 14; i++)

    if (i == 1 && rta[i] != 0)

      abort ();

    else if (i != 1 && i <= 5 && rta[i] != &rt[1])

      abort ();

    else if (i > 5 && rta[i] != &rt[0])

      abort ();

  return 0;

}