Subversion Repositories openrisc_2011-10-31

/* This used to ICE due to a backend problem on s390.  */

/* { dg-do compile { target s390*-*-* } } */

/* { dg-options "-O1 -mpacked-stack" } */

typedef unsigned int __u32;

typedef struct

{

  volatile int counter;

} __attribute__ ((aligned (4))) atomic_t;

static __inline__ __attribute__ ((always_inline))

     void atomic_inc (volatile atomic_t * v)

{

  (

    {

    typeof (v->counter) old_val, new_val;

  __asm__ __volatile__ (

        "   l     %0,0(%3)\n"

        "0: lr    %1,%0\n"

        "   ar    %1,%4\n"

        "   cs    %0,%1,0(%3)\n"

        "   jl    0b":

        "=&d" (old_val), "=&d" (new_val), "=m" (((atomic_t *) (v))->counter):

        "a" (v), "d" (1), "m" (((atomic_t *) (v))->counter):

        "cc", "memory");

    });

}

extern unsigned long volatile __attribute__ ((section (".data"))) jiffies;

struct inet_peer

{

  unsigned long dtime;

  atomic_t refcnt;

};

static volatile int peer_total;

int inet_peer_threshold = 65536 + 128;

int inet_peer_minttl = 120 * 100;

int inet_peer_maxttl = 10 * 60 * 100;

static int

cleanup_once (unsigned long ttl)

{

  struct inet_peer *p;

  if (p != ((void *) 0))

    {

      if (((

             {

             1;}

           ) && ((long) (jiffies) - (long) (p->dtime + ttl) < 0)))

        {

          return -1;

        }

      atomic_inc (&p->refcnt);

    }

}

struct inet_peer *

inet_getpeer (__u32 daddr, int create)

{

  int i;

  int ttl;

  if (peer_total >= inet_peer_threshold)

    ttl = inet_peer_minttl;

  else

    ttl =

      inet_peer_maxttl - (inet_peer_maxttl -

                          inet_peer_minttl) / 100 * peer_total /

      inet_peer_threshold * 100;

  for (i = 0; i < 30 && !cleanup_once (ttl); i++);

}