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• Expression-optimization

Vl-modinst-optimize

Optimize expressions throughout a vl-modinst-p.

Signature

(vl-modinst-optimize x ss) → (mv changedp new-x)

Arguments

x — Guard (vl-modinst-p x).

ss — Guard (vl-scopestack-p ss).

Returns

changedp — Type (booleanp changedp).

new-x — Type (vl-modinst-p new-x).

Definitions and Theorems

Function: vl-modinst-optimize

(defun vl-modinst-optimize (x ss)
  (declare (xargs :guard (and (vl-modinst-p x)
                              (vl-scopestack-p ss))))
  (let ((__function__ 'vl-modinst-optimize))
    (declare (ignorable __function__))
    (b* ((x (vl-modinst-fix x)))
      (b* (((mv changedp args-prime)
            (vl-arguments-optimize (vl-modinst->portargs x)
                                   ss)))
        (if (not changedp)
            (mv nil x)
          (mv t
              (change-vl-modinst x
                                 :portargs args-prime)))))))

Theorem: booleanp-of-vl-modinst-optimize.changedp

(defthm booleanp-of-vl-modinst-optimize.changedp
  (b* (((mv ?changedp ?new-x)
        (vl-modinst-optimize x ss)))
    (booleanp changedp))
  :rule-classes :type-prescription)

Theorem: vl-modinst-p-of-vl-modinst-optimize.new-x

(defthm vl-modinst-p-of-vl-modinst-optimize.new-x
  (b* (((mv ?changedp ?new-x)
        (vl-modinst-optimize x ss)))
    (vl-modinst-p new-x))
  :rule-classes :rewrite)

Theorem: vl-modinst-optimize-of-vl-modinst-fix-x

(defthm vl-modinst-optimize-of-vl-modinst-fix-x
  (equal (vl-modinst-optimize (vl-modinst-fix x)
                              ss)
         (vl-modinst-optimize x ss)))

Theorem: vl-modinst-optimize-vl-modinst-equiv-congruence-on-x

(defthm vl-modinst-optimize-vl-modinst-equiv-congruence-on-x
  (implies (vl-modinst-equiv x x-equiv)
           (equal (vl-modinst-optimize x ss)
                  (vl-modinst-optimize x-equiv ss)))
  :rule-classes :congruence)

Theorem: vl-modinst-optimize-of-vl-scopestack-fix-ss

(defthm vl-modinst-optimize-of-vl-scopestack-fix-ss
  (equal (vl-modinst-optimize x (vl-scopestack-fix ss))
         (vl-modinst-optimize x ss)))

Theorem: vl-modinst-optimize-vl-scopestack-equiv-congruence-on-ss

(defthm vl-modinst-optimize-vl-scopestack-equiv-congruence-on-ss
  (implies (vl-scopestack-equiv ss ss-equiv)
           (equal (vl-modinst-optimize x ss)
                  (vl-modinst-optimize x ss-equiv)))
  :rule-classes :congruence)