public PcodeOpAST findMatch(PcodeOp opLeft) {
		DataVertex vertLeft = graphLeft.opToVert.get(opLeft);
		if (vertLeft == null) {
			return null;
		}
		DataVertex vertRight = pinMap.get(vertLeft);
		if (vertRight != null) {
			return vertRight.op;
		}
		return null;
	}
Find the RIGHT side PcodeOp matching the given LEFT side PcodeOp.
The LEFT and RIGHT sides are determined by the order HighFunctions are given to the constructor.
@param opLeft is the given PcodeOp from LEFT side
@return the matching PcodeOp from RIGHT side or null
Ghidra/Features/CodeCompare/src/main/java/ghidra/features/codecompare/graphanalysis/Pinning.java