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Vl-edge-control-p

Recognize @(posedge clk1 or negedge clk2 or ...) style event controls.

Signature
(vl-edge-control-p x) → *
Arguments: x — Guard (vl-delayoreventcontrol-p x).

Definitions and Theorems

Function: vl-edge-control-p

(defun vl-edge-control-p (x)
  (declare (xargs :guard (vl-delayoreventcontrol-p x)))
  (let ((__function__ 'vl-edge-control-p))
    (declare (ignorable __function__))
    (b* ((x (vl-delayoreventcontrol-fix x))
         ((unless (eq (tag x) :vl-eventcontrol))
          nil)
         ((vl-eventcontrol x) x))
      (and (not x.starp)
           (consp x.atoms)
           (vl-evatomlist-all-have-edges-p x.atoms)))))

Theorem: vl-edge-control-p-of-vl-delayoreventcontrol-fix-x

(defthm vl-edge-control-p-of-vl-delayoreventcontrol-fix-x
  (equal (vl-edge-control-p (vl-delayoreventcontrol-fix x))
         (vl-edge-control-p x)))

Theorem: vl-edge-control-p-vl-delayoreventcontrol-equiv-congruence-on-x

(defthm
     vl-edge-control-p-vl-delayoreventcontrol-equiv-congruence-on-x
  (implies (vl-delayoreventcontrol-equiv x x-equiv)
           (equal (vl-edge-control-p x)
                  (vl-edge-control-p x-equiv)))
  :rule-classes :congruence)