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• Abstract-hids

Vl-indexexpr->indices

Signature

(vl-indexexpr->indices x) → indices

Arguments

x — Guard (vl-expr-p x).

Returns

indices — Type (vl-exprlist-p indices).

Definitions and Theorems

Function: vl-indexexpr->indices$inline

(defun vl-indexexpr->indices$inline (x)
  (declare (xargs :guard (vl-expr-p x)))
  (declare (xargs :guard (vl-indexexpr-p x)))
  (let ((__function__ 'vl-indexexpr->indices))
    (declare (ignorable __function__))
    (mbe :logic
         (b* (((when (vl-atom-p x)) nil)
              ((vl-nonatom x))
              ((when (or (vl-op-equiv x.op :vl-index)
                         (vl-op-equiv x.op :vl-bitselect)))
               (append (vl-indexexpr->indices (first x.args))
                       (list (second x.args)))))
           nil)
         :exec (vl-indexexpr->indices-exec x nil))))

Theorem: vl-exprlist-p-of-vl-indexexpr->indices

(defthm vl-exprlist-p-of-vl-indexexpr->indices
  (b* ((indices (vl-indexexpr->indices$inline x)))
    (vl-exprlist-p indices))
  :rule-classes :rewrite)

Theorem: vl-indexexpr->indices-exec-removal

(defthm vl-indexexpr->indices-exec-removal
  (equal (vl-indexexpr->indices-exec x acc)
         (append (vl-indexexpr->indices x)
                 (vl-exprlist-fix acc))))

Theorem: vl-indexexpr->indices$inline-of-vl-expr-fix-x

(defthm vl-indexexpr->indices$inline-of-vl-expr-fix-x
  (equal (vl-indexexpr->indices$inline (vl-expr-fix x))
         (vl-indexexpr->indices$inline x)))

Theorem: vl-indexexpr->indices$inline-vl-expr-equiv-congruence-on-x

(defthm vl-indexexpr->indices$inline-vl-expr-equiv-congruence-on-x
  (implies (vl-expr-equiv x x-equiv)
           (equal (vl-indexexpr->indices$inline x)
                  (vl-indexexpr->indices$inline x-equiv)))
  :rule-classes :congruence)

Subtopics

Vl-indexexpr->indices-exec