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Vl-warn-about-negative-indices

Signature

(vl-warn-about-negative-indices constantp orig-x new-x warnings) 
  → 
new-warnings

Arguments

constantp — did it resolve to a constant.

orig-x — Guard (vl-expr-p orig-x).

new-x — Guard (vl-expr-p new-x).

warnings — Guard (vl-warninglist-p warnings).

Returns

new-warnings — Type (vl-warninglist-p new-warnings).

Definitions and Theorems

Function: vl-warn-about-negative-indices

(defun vl-warn-about-negative-indices
       (constantp orig-x new-x warnings)
 (declare (xargs :guard (and (vl-expr-p orig-x)
                             (vl-expr-p new-x)
                             (vl-warninglist-p warnings))))
 (let ((__function__ 'vl-warn-about-negative-indices))
  (declare (ignorable __function__))
  (b* (((unless (and constantp (vl-expr-resolved-p new-x)
                     (< (vl-resolved->val new-x) 0)
                     (not (vl-expr-equiv new-x orig-x))))
        (ok)))
   (warn
    :type :vl-negative-index
    :msg
    "Index expression ~a0 resolved to ~a1, where a nonnegative value was expected"
    :args (list (vl-expr-fix orig-x)
                (vl-expr-update-atts new-x nil))))))

Theorem: vl-warninglist-p-of-vl-warn-about-negative-indices

(defthm vl-warninglist-p-of-vl-warn-about-negative-indices
  (b* ((new-warnings (vl-warn-about-negative-indices
                          constantp orig-x new-x warnings)))
    (vl-warninglist-p new-warnings))
  :rule-classes :rewrite)

Theorem: vl-warn-about-negative-indices-of-vl-expr-fix-orig-x

(defthm vl-warn-about-negative-indices-of-vl-expr-fix-orig-x
 (equal
  (vl-warn-about-negative-indices constantp (vl-expr-fix orig-x)
                                  new-x warnings)
  (vl-warn-about-negative-indices constantp orig-x new-x warnings)))

Theorem: vl-warn-about-negative-indices-vl-expr-equiv-congruence-on-orig-x

(defthm
  vl-warn-about-negative-indices-vl-expr-equiv-congruence-on-orig-x
 (implies
  (vl-expr-equiv orig-x orig-x-equiv)
  (equal
    (vl-warn-about-negative-indices constantp orig-x new-x warnings)
    (vl-warn-about-negative-indices
         constantp orig-x-equiv new-x warnings)))
 :rule-classes :congruence)

Theorem: vl-warn-about-negative-indices-of-vl-expr-fix-new-x

(defthm vl-warn-about-negative-indices-of-vl-expr-fix-new-x
 (equal
  (vl-warn-about-negative-indices
       constantp orig-x (vl-expr-fix new-x)
       warnings)
  (vl-warn-about-negative-indices constantp orig-x new-x warnings)))

Theorem: vl-warn-about-negative-indices-vl-expr-equiv-congruence-on-new-x

(defthm
   vl-warn-about-negative-indices-vl-expr-equiv-congruence-on-new-x
 (implies
  (vl-expr-equiv new-x new-x-equiv)
  (equal
    (vl-warn-about-negative-indices constantp orig-x new-x warnings)
    (vl-warn-about-negative-indices
         constantp orig-x new-x-equiv warnings)))
 :rule-classes :congruence)

Theorem: vl-warn-about-negative-indices-of-vl-warninglist-fix-warnings

(defthm
      vl-warn-about-negative-indices-of-vl-warninglist-fix-warnings
 (equal
  (vl-warn-about-negative-indices
       constantp orig-x
       new-x (vl-warninglist-fix warnings))
  (vl-warn-about-negative-indices constantp orig-x new-x warnings)))

Theorem: vl-warn-about-negative-indices-vl-warninglist-equiv-congruence-on-warnings

(defthm
 vl-warn-about-negative-indices-vl-warninglist-equiv-congruence-on-warnings
 (implies
  (vl-warninglist-equiv warnings warnings-equiv)
  (equal
    (vl-warn-about-negative-indices constantp orig-x new-x warnings)
    (vl-warn-about-negative-indices
         constantp orig-x new-x warnings-equiv)))
 :rule-classes :congruence)