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Ifmerge

Vl-always-ifmerge

Signature
(vl-always-ifmerge x warnings) → (mv warnings new-x)
Arguments: x — Guard (vl-always-p x).; warnings — Guard (vl-warninglist-p warnings).
Returns: warnings — Type (vl-warninglist-p warnings).; new-x — Type (vl-always-p new-x).

Definitions and Theorems

Function: vl-always-ifmerge

(defun vl-always-ifmerge (x warnings)
  (declare (xargs :guard (and (vl-always-p x)
                              (vl-warninglist-p warnings))))
  (let ((__function__ 'vl-always-ifmerge))
    (declare (ignorable __function__))
    (b* (((vl-always x) x)
         ((mv warnings stmt-list)
          (vl-stmt-ifmerge x.stmt nil warnings x))
         (new-stmt (if (equal (len stmt-list) 1)
                       (car stmt-list)
                     (make-vl-blockstmt :sequentialp t
                                        :stmts stmt-list))))
      (mv warnings
          (change-vl-always x :stmt new-stmt)))))

Theorem: vl-warninglist-p-of-vl-always-ifmerge.warnings

(defthm vl-warninglist-p-of-vl-always-ifmerge.warnings
  (b* (((mv ?warnings ?new-x)
        (vl-always-ifmerge x warnings)))
    (vl-warninglist-p warnings))
  :rule-classes :rewrite)

Theorem: vl-always-p-of-vl-always-ifmerge.new-x

(defthm vl-always-p-of-vl-always-ifmerge.new-x
  (b* (((mv ?warnings ?new-x)
        (vl-always-ifmerge x warnings)))
    (vl-always-p new-x))
  :rule-classes :rewrite)