private boolean matchOpPcodeObjectAssignment(PcodeOp[] operandPcode, Varnode loc) {
		for (PcodeOp op : operandPcode) {
			if (loc.equals(op.getOutput())) {
				return true;
			}
		}
		return false;
	}
Returns the set of registers which were modified
Ghidra/Features/Base/src/main/java/ghidra/util/state/ResultsState.java