struct C
{
int a;
int *b;
int *c1 (int x) { return new int[sizeof (int) * x]; }
void c2 (int *x, int *y, int z)
{
for (int i = 0; i < z; i++)
y[i] = x[i];
}
C (int x = 0) : a (x)
{
if (a)
{
b = c1 (a);
for (int i = 0; i < a; i++)
b[i] = 0;
}
}
C (const C & x) : a (x.a)
{
if (a)
{
b = c1 (a);
c2 (x.b, b, a);
}
}
~C (void) { if (a) delete b; }
int &operator [] (int x)
{
if (a == 0 && x == 0)
{
a = 1;
b = c1 (1);
b[0] = 0;
}
else
{
C e (*this);
a = x + 1;
b = c1 (a);
c2 (e.b, b, e.a);
for (int i = e.a; i < a; i++)
b[i] = 0;
}
return b[x];
}
C & operator << (int x) { (*this)[a] = x; return *this; }
};
int
bar (void)
{
C a;
int f = 1;
while (f != -1)
{
f = 0;
a << 1;
}
return 0;
}
ICEs at -O2 in coalesce_abnormal_edges. The bug is not present on HEAD
and 3.4.x compiles it just fine as well.
--
Summary: ICE in coalesce_abnormal_edges
Product: gcc
Version: 4.0.2
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jakub at redhat dot com
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22415
