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Vl-resolved->val

Get the value from a resolved expression.

Signature

(vl-resolved->val x) → val

Arguments

x — Guard (vl-expr-p x).

Returns

val — Type (integerp val).

Definitions and Theorems

Function: vl-resolved->val

(defun vl-resolved->val (x)
  (declare (xargs :guard (vl-expr-p x)))
  (declare (xargs :guard (vl-expr-resolved-p x)))
  (let ((__function__ 'vl-resolved->val))
    (declare (ignorable __function__))
    (b* (((vl-constint x) (vl-literal->val x)))
      (if (eq x.origsign :vl-signed)
          (acl2::logext x.origwidth x.value)
        x.value))))

Theorem: integerp-of-vl-resolved->val

(defthm integerp-of-vl-resolved->val
  (b* ((val (vl-resolved->val x)))
    (integerp val))
  :rule-classes :type-prescription)

Theorem: vl-resolved->val-of-vl-expr-fix-x

(defthm vl-resolved->val-of-vl-expr-fix-x
  (equal (vl-resolved->val (vl-expr-fix x))
         (vl-resolved->val x)))

Theorem: vl-resolved->val-vl-expr-equiv-congruence-on-x

(defthm vl-resolved->val-vl-expr-equiv-congruence-on-x
  (implies (vl-expr-equiv x x-equiv)
           (equal (vl-resolved->val x)
                  (vl-resolved->val x-equiv)))
  :rule-classes :congruence)