operand = operand.simplify(); if (operand instanceof Variable) { Variable v = (Variable) operand;
refs[0] = refs[0].simplify(); if (refs[0] instanceof Variable) { Variable v = (Variable) refs[0];
	public void doPass2(BootableHashMap liveVariables) {		operand = operand.simplify();		if (operand instanceof Variable) {			Variable v = (Variable) operand;			v.setLastUseAddress(this.getAddress());			liveVariables.put(v, v);		}	}