https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63764
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Version|tree-ssa |5.0
Last reconfirmed| |2014-11-07
Component|middle-end |tree-optimization
CC| |trippels at gcc dot gnu.org
Ever confirmed|0 |1
Summary|nternal compiler error: in |[5 Regression] ICE: in
|verify_ssa, at |verify_ssa, at
|tree-ssa.c:939 |tree-ssa.c:939
Target Milestone|--- |5.0
Severity|major |normal
--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Also happens when building the Linux kernel:
trippels@gcc2-power8 linux-3.17.2 % cat dev.i
struct hlist_head
{
struct hlist_node *first
};
struct hlist_node
{
struct hlist_node *next
};
struct net_device
{
int ifindex;
struct hlist_node index_hlist
} * a;
b, f;
*fn1 (int *p1, int p2)
{
struct hlist_head *c;
struct net_device *d;
c = &a[b];
struct hlist_head *e = c;
d = (
{
0;
e->first ? (
{
(char *) e->first
- __builtin_offsetof(typeof(*d), index_hlist);
})
: 0;
});
for (; d;
d = (
{
0;
d->index_hlist.next
? (
{
(char *) d->index_hlist.next
- __builtin_offsetof(typeof(*d), index_hlist);
})
: 0;
}))
if (d->ifindex == p2)
return d;
return 0;
}
*fn2 (int *p1, int p2)
{
struct hlist_head *g;
struct net_device *h;
g = &a[b];
struct hlist_head *i = g;
h = (
{
typeof((
{
&f;
})) j
= (
{
i->first;
});
j ? (
{
(char *) j - __builtin_offsetof(typeof(*h), index_hlist);
})
: 0;
});
for (; h; h = (
{
typeof((
{
&f;
})) k
= (
{
typeof(0) *l = *(volatile typeof(h) *) &(
&h->index_hlist)->next;
l;
});
k ? (
{
(char *) k
- __builtin_offsetof(typeof(*h), index_hlist);
})
: 0;
}))
if (h->ifindex == p2)
return h;
return 0;
}
fn3 () { fn1 (0, 0); }
trippels@gcc2-power8 linux-3.17.2 % gcc -w -c -O2 dev.i
dev.i: In function ‘fn3’:
dev.i:92:1: internal compiler error: in verify_ssa, at tree-ssa.c:939
fn3 () { fn1 (0, 0); }
^
