private CtrlVertex dataToCtrl(DataVertex node) {
		PcodeBlockBasic parent = node.op.getParent();
		CtrlGraph whichGraph = (node.graph == graphLeft ? cgraphLeft : cgraphRight);
		return whichGraph.blockToVertex.get(parent);
	}
Given a data-flow representing a PcodeOp, return the control-flow vertex containing the PcodeOp.
@param node is the data-flow vertex
@return the containing control-flow vertex
Ghidra/Features/CodeCompare/src/main/java/ghidra/features/codecompare/graphanalysis/Pinning.java