1/* { dg-do compile } */
2/* { dg-options "-O2 -fdump-ipa-icf-details"  } */
3
4struct __hlist_head
5{
6  struct __hlist_node *first;
7};
8
9struct __hlist_node
10{
11  struct __hlist_node *next, **pprev;
12};
13
14struct __net
15{
16  int ifindex;
17  struct __hlist_head * dev_index_head;
18};
19
20struct __net_device
21{
22  int ifindex;
23  struct __net *nd_net;
24  struct __hlist_node index_hlist;
25};
26
27__attribute__ ((noinline, noclone))
28static struct __hlist_head * __dev_index_hash(struct __net *net,
29    int ifindex)
30{
31  return &net->dev_index_head[ifindex & 1];
32}
33
34__attribute__ ((noinline, noclone))
35struct __net_device * __dev_get_by_index(struct __net *net, int ifindex)
36{
37  struct __net_device * dev;
38  struct __hlist_head * head = __dev_index_hash(net, ifindex);
39
40  for (dev = ( { typeof((head)->first) ____ptr = ((head)->first); ____ptr ? ( { const typeof(((typeof(*(dev)) *) 0)->index_hlist) * __mptr = (____ptr); (typeof(*(dev)) *) ((char *)__mptr - __builtin_offsetof(typeof(*(dev)), index_hlist));}): ((void *) 0);});
41       dev; dev = ( { typeof ((dev)->index_hlist.next) ____ptr = ((dev)->index_hlist.next); ____ptr ? ( { const typeof(((typeof(*(dev)) *) 0)->index_hlist) * __mptr = (____ptr); (typeof(*(dev)) *) ((char *)__mptr - __builtin_offsetof(typeof(*(dev)), index_hlist));}): ((void *) 0);}))
42    if (dev->ifindex == ifindex)
43      return dev;
44
45  return ((void *)0);
46}
47
48__attribute__ ((noinline, noclone))
49struct __net_device * dev_get_by_index_rcu(struct __net *net, int ifindex)
50{
51  struct __net_device * dev;
52  struct __hlist_head * head = __dev_index_hash(net, ifindex);
53
54  for (dev = ( { typeof(( { typeof (* ((*((struct __hlist_node **)(&(head)->first))))) * _________p1 = (typeof(*((*((struct __hlist_node **)(&(head)->first))))) *) (*(volatile typeof(((*((struct __hlist_node **)(&(head)->first))))) *)&(((*((struct __hlist_node **)(&(head)->first)))))); do { } while (0);; do { } while (0); ((typeof(*((*((struct __hlist_node **)(&(head)->first))))) *) (_________p1));})) ____ptr = (( { typeof (* ((*((struct __hlist_node **)(&(head)->first))))) * _________p1 = (typeof(*((*((struct __hlist_node **)(&(head)->first))))) *) (*(volatile typeof(((*((struct __hlist_node **)(&(head)->first))))) *)&(((*((struct __hlist_node **)(&(head)->first)))))); do { } while (0);; do { } while (0); ((typeof(*((*((struct __hlist_node **)(&(head)->first))))) *) (_________p1));})); ____ptr ? ( { const typeof(((typeof(*(dev)) *) 0)->index_hlist) * __mptr = (____ptr); (typeof(*(dev)) *) ((char *)__mptr - __builtin_offsetof(typeof(*(dev)), index_hlist));}):((void *) 0);});
55	  dev; dev = ( { typeof(( { typeof (* ((*((struct __hlist_node **)(&(&(dev)->index_hlist)->next))))) * _________p1 = (typeof(*((*((struct __hlist_node **)(&(&(dev)->index_hlist)->next))))) *) (*(volatile typeof(((*((struct __hlist_node **)(&(&(dev)->index_hlist)->next))))) *)&(((*((struct __hlist_node **)(&(&(dev)->index_hlist)->next)))))); do { } while (0);; do { } while (0); ((typeof(*((*((struct __hlist_node **)(&(&(dev)->index_hlist)->next))))) *) (_________p1));})) ____ptr = (( { typeof (* ((*((struct __hlist_node **)(&(&(dev)->index_hlist)->next))))) * _________p1 = (typeof(*((*((struct __hlist_node **)(&(&(dev)->index_hlist)->next))))) *) (*(volatile typeof(((*((struct __hlist_node **)(&(&(dev)->index_hlist)->next))))) *)&(((*((struct __hlist_node **)(&(&(dev)->index_hlist)->next)))))); do { } while (0);; do { } while (0); ((typeof(*((*((struct __hlist_node **)(&(&(dev)->index_hlist)->next))))) *) (_________p1));})); ____ptr ? ( { const typeof(((typeof(*(dev)) *) 0)->index_hlist) * __mptr = (____ptr); (typeof(*(dev)) *) ((char *)__mptr - __builtin_offsetof(typeof(*(dev)), index_hlist));}): ((void *) 0);}))
56		    if (dev->ifindex == ifindex)
57		      return dev;
58  return ((void *)0);
59}
60
61__attribute__ ((noinline, noclone))
62int foo(struct __net *net)
63{
64  if (!__dev_get_by_index(net, net->ifindex));
65    return 1;
66  return 0;
67}
68
69int main()
70{
71  return 0;
72}
73
74/* { dg-final { scan-ipa-dump "Equal symbols: 0" "icf"  } } */
75/* { dg-final { cleanup-ipa-dump "icf" } } */
76