		Search-engine friendly clone of the ACL2 documentation.

Weirdint-elim

Vl-weirdint-to-concat

Signature
(vl-weirdint-to-concat x warnings) → (mv warnings concat)
Arguments: x — Guard (vl-weirdint-p x).; warnings — Guard (vl-warninglist-p warnings).
Returns: warnings — Type (vl-warninglist-p warnings).; concat — Type (vl-expr-p concat).

Definitions and Theorems

Function: vl-weirdint-to-concat

(defun vl-weirdint-to-concat (x warnings)
 (declare (xargs :guard (and (vl-weirdint-p x)
                             (vl-warninglist-p warnings))))
 (let ((__function__ 'vl-weirdint-to-concat))
  (declare (ignorable __function__))
  (b*
   ((x (vl-weirdint-fix x))
    ((vl-weirdint x) x)
    ((when (eq x.origtype :vl-signed))
     (mv
      (fatal
        :type :vl-unsupported
        :msg
        "Don't want to think about signed weirdints, but found ~a0."
        :args (list x))
      (make-vl-atom :guts x
                    :finalwidth x.origwidth
                    :finaltype :vl-signed))))
   (mv (ok)
       (make-vl-nonatom :op :vl-concat
                        :args (vl-weirdint-bits-to-exprs x.bits)
                        :finalwidth x.origwidth
                        :finaltype :vl-unsigned)))))

Theorem: vl-warninglist-p-of-vl-weirdint-to-concat.warnings

(defthm vl-warninglist-p-of-vl-weirdint-to-concat.warnings
  (b* (((mv ?warnings ?concat)
        (vl-weirdint-to-concat x warnings)))
    (vl-warninglist-p warnings))
  :rule-classes :rewrite)

Theorem: vl-expr-p-of-vl-weirdint-to-concat.concat

(defthm vl-expr-p-of-vl-weirdint-to-concat.concat
  (b* (((mv ?warnings ?concat)
        (vl-weirdint-to-concat x warnings)))
    (vl-expr-p concat))
  :rule-classes :rewrite)

Theorem: vl-weirdint-to-concat-of-vl-weirdint-fix-x

(defthm vl-weirdint-to-concat-of-vl-weirdint-fix-x
  (equal (vl-weirdint-to-concat (vl-weirdint-fix x)
                                warnings)
         (vl-weirdint-to-concat x warnings)))

Theorem: vl-weirdint-to-concat-vl-weirdint-equiv-congruence-on-x

(defthm vl-weirdint-to-concat-vl-weirdint-equiv-congruence-on-x
  (implies (vl-weirdint-equiv x x-equiv)
           (equal (vl-weirdint-to-concat x warnings)
                  (vl-weirdint-to-concat x-equiv warnings)))
  :rule-classes :congruence)

Theorem: vl-weirdint-to-concat-of-vl-warninglist-fix-warnings

(defthm vl-weirdint-to-concat-of-vl-warninglist-fix-warnings
  (equal (vl-weirdint-to-concat x (vl-warninglist-fix warnings))
         (vl-weirdint-to-concat x warnings)))

Theorem: vl-weirdint-to-concat-vl-warninglist-equiv-congruence-on-warnings

(defthm
  vl-weirdint-to-concat-vl-warninglist-equiv-congruence-on-warnings
  (implies (vl-warninglist-equiv warnings warnings-equiv)
           (equal (vl-weirdint-to-concat x warnings)
                  (vl-weirdint-to-concat x warnings-equiv)))
  :rule-classes :congruence)