int delta = getCodeByte(branchTarget - 4);
	public void sawOpcode(int seen) {		try {		if (seen == ISTORE			|| seen == ISTORE_0			|| seen == ISTORE_1			|| seen == ISTORE_2			|| seen == ISTORE_3)			lastRegStore = getRegisterOperand();		if (lineNumbers!= null && stack.getStackDepth() >= 2 && (			seen == IF_ICMPGE 			|| seen == IF_ICMPGT			|| seen == IF_ICMPLT			|| seen == IF_ICMPLE			|| seen == IF_ICMPNE			|| seen == IF_ICMPEQ)) {			OpcodeStack.Item item0 = stack.getStackItem(0);			OpcodeStack.Item item1 = stack.getStackItem(1);			int r0 = item0.getRegisterNumber();			int r1 = item1.getRegisterNumber();			int rMin = Math.min(r0,r1);			int rMax = Math.max(r0,r1);			int branchTarget = getBranchTarget();			if (rMin == -1 && rMax > 0  && rMax == lastRegStore 				&& branchTarget-6 > getPC())  {			  int beforeTarget = getCodeByte(branchTarget - 3);			  int beforeGoto = getCodeByte(branchTarget - 6);			  if (beforeTarget == GOTO && beforeGoto == IINC) {				int offset1 = (byte) getCodeByte(branchTarget - 2);				int offset2 = getCodeByte(branchTarget - 1);				int offset = offset1 << 8 | offset2;			 	int backTarget = branchTarget - 3 + offset;			 	int reg = getCodeByte(branchTarget - 5);			 	int delta = getCodeByte(branchTarget - 4);				int testLineNumber 					= lineNumbers.getSourceLine(getPC());				int incLineNumber 					= lineNumbers.getSourceLine(branchTarget-6);				int beforeIncLineNumber 					= lineNumbers.getSourceLine(branchTarget-7);			  if (backTarget < getPC() &&				getPC() - 8 < backTarget 				&& reg != rMax				&& incLineNumber < testLineNumber+3				&& beforeIncLineNumber > incLineNumber				) {						bugReporter.reportBug(new BugInstance(this, "QF_QUESTIONABLE_FOR_LOOP", NORMAL_PRIORITY)				.addClassAndMethod(this)				.addSourceLine(this));			  }			  }			  			  }			}            	stack.sawOpcode(this, seen);		} catch (RuntimeException e) {			System.out.println("Exception at " + getPC() 				+ " in " + getFullyQualifiedMethodName());			e.printStackTrace(System.out);			}	}