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Split

Vl-module-split

Split up complex expressions throughout a module's assignments, module instances, and gate instances.

Signature
(vl-module-split x) → new-x
Arguments: x — Guard (vl-module-p x).
Returns: new-x — Type (vl-module-p new-x), given the guard.

Definitions and Theorems

Function: vl-module-split

(defun vl-module-split (x)
  (declare (xargs :guard (vl-module-p x)))
  (let ((__function__ 'vl-module-split))
    (declare (ignorable __function__))
    (b* (((vl-module x) x)
         ((when (vl-module->hands-offp x)) x)
         (delta (vl-starting-delta x))
         (delta (change-vl-delta delta
                                 :vardecls x.vardecls))
         ((mv assigns delta)
          (vl-assignlist-split x.assigns delta))
         ((mv modinsts delta)
          (vl-modinstlist-split x.modinsts delta))
         ((mv gateinsts delta)
          (vl-gateinstlist-split x.gateinsts delta))
         ((vl-delta delta)
          (vl-free-delta delta)))
      (change-vl-module
           x
           :vardecls delta.vardecls
           :assigns (revappend-without-guard delta.assigns assigns)
           :modinsts modinsts
           :gateinsts gateinsts
           :warnings delta.warnings))))

Theorem: vl-module-p-of-vl-module-split

(defthm vl-module-p-of-vl-module-split
  (implies (and (force (vl-module-p x)))
           (b* ((new-x (vl-module-split x)))
             (vl-module-p new-x)))
  :rule-classes :rewrite)