(num-fanins aignet) returns the total number of nodes in an aignet.
Logically this is
In the execution this is just a stobj field access.
Function:
(defun aignet$a::num-fanins (aignet) (declare (xargs :guard (aignet$a::aignet-well-formedp aignet))) (let ((__function__ 'aignet$a::num-fanins)) (declare (ignorable __function__)) (1+ (fanin-count aignet))))