/* This used to ICE due to a backend problem on s390.  *//* { dg-do compile } *//* { 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 intcleanup_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++);}