public final boolean isCommutative() {
		return isCommutative(opcode);
	}
Return true if the PcodeOp is commutative.
If true, the operation has exactly two inputs that can be switched without affecting the output.
@return true if the operation is commutative
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/PcodeOp.java