Subversion Repositories openrisc

/* { dg-do run } */

/* { dg-options "-O2" } */

extern void abort (void);

extern void exit (int);

static inline __attribute__((always_inline))

void

prefetch (void *x)

{

  asm volatile("prefetcht0 %0" : : "m" (*(unsigned long *)x));

}

struct hlist_head

{

  struct hlist_node *first;

};

struct hlist_node

{

  struct hlist_node *next;

  unsigned long i_ino;

};

struct hlist_node * find_inode_fast(struct hlist_head *head, unsigned long ino)

{

  struct hlist_node *node;

  for (node = head->first;

       node && (prefetch (node->next), 1);

       node = node->next)

    {

      if (node->i_ino == ino)

        break;

    }

  return node ? node : 0;

}

struct hlist_node g2;

struct hlist_node g1 = { &g2 };

struct hlist_head h = { &g1 };

int

main()

{

  if (find_inode_fast (&h, 1) != 0)

    abort ();

  exit (0);

}