this.exceptionHandlerValueNumberMap = new IdentityHashMap<BasicBlock, ValueNumber>();
	public ValueNumberAnalysis(MethodGen methodGen) {		this.methodGen = methodGen;		this.factory = new ValueNumberFactory();		this.cache = new ValueNumberCache();		int numLocals = methodGen.getMaxLocals();		this.entryLocalValueList = new ValueNumber[numLocals];		for (int i = 0; i < numLocals; ++i)			this.entryLocalValueList[i] = factory.createFreshValue();	}