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Logicassign

Vl-vardecl-logicassign

Signature
(vl-vardecl-logicassign x warnings) → new-warnings
Arguments: x — Guard (vl-vardecl-p x).; warnings — Guard (vl-warninglist-p warnings).
Returns: new-warnings — Type (vl-warninglist-p new-warnings).

Definitions and Theorems

Function: vl-vardecl-logicassign

(defun vl-vardecl-logicassign (x warnings)
 (declare (xargs :guard (and (vl-vardecl-p x)
                             (vl-warninglist-p warnings))))
 (let ((__function__ 'vl-vardecl-logicassign))
  (declare (ignorable __function__))
  (b*
   (((vl-vardecl x) (vl-vardecl-fix x))
    ((unless x.initval) (ok))
    (reg-p
     (vl-datatype-case
          x.type
          (:vl-coretype (vl-coretypename-equiv x.type.name :vl-reg))
          (:otherwise nil)))
    ((when reg-p) (ok)))
   (warn
    :type :vl-warn-vardecl-assign
    :msg
    "~a0: declaration-time assignment to ~s1 will be treated ~
                like an 'initial' assignment, not a continuous assignment; ~
                is that what you meant?"
    :args (list x x.name)))))

Theorem: vl-warninglist-p-of-vl-vardecl-logicassign

(defthm vl-warninglist-p-of-vl-vardecl-logicassign
  (b* ((new-warnings (vl-vardecl-logicassign x warnings)))
    (vl-warninglist-p new-warnings))
  :rule-classes :rewrite)

Theorem: vl-vardecl-logicassign-of-vl-vardecl-fix-x

(defthm vl-vardecl-logicassign-of-vl-vardecl-fix-x
  (equal (vl-vardecl-logicassign (vl-vardecl-fix x)
                                 warnings)
         (vl-vardecl-logicassign x warnings)))

Theorem: vl-vardecl-logicassign-vl-vardecl-equiv-congruence-on-x

(defthm vl-vardecl-logicassign-vl-vardecl-equiv-congruence-on-x
  (implies (vl-vardecl-equiv x x-equiv)
           (equal (vl-vardecl-logicassign x warnings)
                  (vl-vardecl-logicassign x-equiv warnings)))
  :rule-classes :congruence)

Theorem: vl-vardecl-logicassign-of-vl-warninglist-fix-warnings

(defthm vl-vardecl-logicassign-of-vl-warninglist-fix-warnings
  (equal (vl-vardecl-logicassign x (vl-warninglist-fix warnings))
         (vl-vardecl-logicassign x warnings)))

Theorem: vl-vardecl-logicassign-vl-warninglist-equiv-congruence-on-warnings

(defthm
 vl-vardecl-logicassign-vl-warninglist-equiv-congruence-on-warnings
 (implies (vl-warninglist-equiv warnings warnings-equiv)
          (equal (vl-vardecl-logicassign x warnings)
                 (vl-vardecl-logicassign x warnings-equiv)))
 :rule-classes :congruence)