Incorrect Labels Assigned Sometimes Cause Sirrtl Crash

[dz333]

At least in 1 instance, the generated firrtl has the wrong declaration for a label.
In the attached case, the InsnLookup module has the wrong label on its output. It should be taken from the other output wires (out_conf and out_int).

Instead, in the generated firrtl it uses the instantiation of InsnLookup (named icache) for the confidentiality.
debug.zip