Subversion Repositories openrisc

/* Bad PTA results (incorrect store handling) was causing us to delete

   *na = 0 store.  */

typedef struct E

{

  int p;

  struct E *n;

} *EP;

typedef struct C

{

  EP x;

  short cn, cp;

} *CP;

__attribute__((noinline)) CP

foo (CP h, EP x)

{

  EP pl = 0, *pa = &pl;

  EP nl = 0, *na = &nl;

  EP n;

  while (x)

    {

      n = x->n;

      if ((x->p & 1) == 1)

        {

          h->cp++;

          *pa = x;

          pa = &((*pa)->n);

        }

      else

        {

          h->cn++;

          *na = x;

          na = &((*na)->n);

        }

      x = n;

    }

  *pa = nl;

  *na = 0;

  h->x = pl;

  return h;

}

int

main (void)

{

  struct C c = { 0, 0, 0 };

  struct E e[2] = { { 0, &e[1] }, { 1, 0 } };

  EP p;

  foo (&c, &e[0]);

  if (c.cn != 1 || c.cp != 1)

    __builtin_abort ();

  if (c.x != &e[1])

    __builtin_abort ();

  if (e[1].n != &e[0])

    __builtin_abort ();

  if (e[0].n)

    __builtin_abort ();

  return 0;

}