@Test
public void testJoin8() {
Stamp bExact = StampFactory.exactNonNull(getType(B.class));
Stamp dExact = StampFactory.exact(getType(D.class));
Stamp join = join(bExact, dExact);
Assert.assertFalse(join.isLegal());
}
@Test
public void testJoin6() {
Stamp dExactNonNull = StampFactory.exactNonNull(getType(D.class));
Stamp alwaysNull = StampFactory.alwaysNull();
Stamp join = join(alwaysNull, dExactNonNull);
Assert.assertFalse(join.isLegal());
Assert.assertFalse(StampTool.isPointerNonNull(join));
Assert.assertFalse(StampTool.isPointerAlwaysNull(join));
}
public Stamp getReturnStamp() {
Stamp returnStamp = null;
for (ReturnNode returnNode : getNodes(ReturnNode.TYPE)) {
ValueNode result = returnNode.result();
if (result != null) {
if (returnStamp == null) {
returnStamp = result.stamp();
} else {
returnStamp = returnStamp.meet(result.stamp());
}
}
}
return returnStamp;
}
@Override
public boolean inferStamp() {
return updateStamp(piStamp.improveWith(object().stamp()));
}