https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84696
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
Status|UNCONFIRMED |NEW
Known to work| |7.3.0
Keywords| |ice-on-valid-code
Last reconfirmed| |2018-03-04
Component|c |tree-optimization
CC| |marxin at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
Ever confirmed|0 |1
Summary|internal compiler error: in |[8 Regression] ICE in
|compute_antic_aux, at |compute_antic_aux, at
|tree-ssa-pre.c:2148 |tree-ssa-pre.c:2148
Target Milestone|--- |8.0
Known to fail| |8.0
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, started with r258124.
I see similar issue:
$ cat ice.i
enum b
{
c,
d
};
struct e
{
enum b code;
};
struct f
{
unsigned g;
};
int h, i;
struct a
{
struct e common;
struct f j;
};
struct a k (void)
{
struct a *l;
do
if (l->common.code == d && l->j.g * 4)
;
else
i = l->j.g | (l->common.code && l);
while (h && l->common.code == c);
}
$ gcc ice.i -c -Ofast
during GIMPLE pass: pre
ice.i: In function 'k':
ice.i:21:10: internal compiler error: in compute_antic_aux, at
tree-ssa-pre.c:2148
struct a k (void)
^
0xd90686 compute_antic_aux
../../gcc/tree-ssa-pre.c:2148
0xd90686 compute_antic
../../gcc/tree-ssa-pre.c:2364
0xd90686 execute
../../gcc/tree-ssa-pre.c:4131
