What is the reason for a small source code change that causes the node name in the integrated netlist to change?

* Question

* Answer

A small source code change will result in a change in the node name in the integrated netlist. This is mainly caused by two reasons:

(1) This node implements different functions in the new netlist than the old netlist.

(2) This node has the same function as the old netlist in the new netlist, but the name is different.