public boolean isCommutative() {
		if (op == null) {
			return false;
		}
		int opc = op.getOpcode();
		if (opc == PcodeOp.MULTIEQUAL) {
			return true;		// For purposes of Pinning algorithm, treat MULTIEQUAL as commutative
		}
		return PcodeOp.isCommutative(opc);
	}
Is the underlying node a PcodeOp which takes commutative inputs?
@return true if the PcodeOp is commutative
Ghidra/Features/CodeCompare/src/main/java/ghidra/features/codecompare/graphanalysis/DataVertex.java