Compiling the following testcase give you a segfault.
You might get an ICE if you enable checking.
void
foo (int a)
{
int b;
int d;
if (a == 2)
b = 3;
else
b = 5;
d = 11;
for (;;)
{
if (d == 5)
break;
d = b;
}
}
--
Summary: Segfault
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kazu at gcc dot gnu dot org
GCC target triplet: x86_64-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25501