versionMap = new HashMap<String, CodeVersion>();
}
// Simplify instruction and record mapping between target variable and simplified value
// System.out.println("BEFORE: " + i);
Operand val = i.simplifyAndGetResult(valueMap);
Variable res = i.getResult();
// System.out.println("For " + i + "; dst = " + res + "; val = " + val);
// System.out.println("AFTER: " + i);
if (val != null && res != null && res != val) {
recordSimplification(res, val, valueMap, simplificationMap);