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• Vl-hidstep

Vl-hidstep->index

Get the index field from a vl-hidstep.

Signature

(vl-hidstep->index x) → index

Arguments

x — Guard (vl-hidstep-p x).

Returns

index — Type (vl-maybe-expr-p index).

This is an ordinary field accessor created by defprod.

Definitions and Theorems

Function: vl-hidstep->index$inline

(defun vl-hidstep->index$inline (x)
 (declare (xargs :guard (vl-hidstep-p x)))
 (declare (xargs :guard t))
 (let ((__function__ 'vl-hidstep->index))
  (declare (ignorable __function__))
  (mbe
      :logic
      (b* ((x (and t x)))
        (vl-maybe-expr-fix (std::prod-cdr (std::prod-car (cdr x)))))
      :exec (std::prod-cdr (std::prod-car (cdr x))))))

Theorem: vl-maybe-expr-p-of-vl-hidstep->index

(defthm vl-maybe-expr-p-of-vl-hidstep->index
  (b* ((index (vl-hidstep->index$inline x)))
    (vl-maybe-expr-p index))
  :rule-classes :rewrite)

Theorem: vl-hidstep->index$inline-of-vl-hidstep-fix-x

(defthm vl-hidstep->index$inline-of-vl-hidstep-fix-x
  (equal (vl-hidstep->index$inline (vl-hidstep-fix x))
         (vl-hidstep->index$inline x)))

Theorem: vl-hidstep->index$inline-vl-hidstep-equiv-congruence-on-x

(defthm vl-hidstep->index$inline-vl-hidstep-equiv-congruence-on-x
  (implies (vl-hidstep-equiv x x-equiv)
           (equal (vl-hidstep->index$inline x)
                  (vl-hidstep->index$inline x-equiv)))
  :rule-classes :congruence)