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Vl-compoundstmt->ctrl

Get the timing control, if any, from an arbitrary compound (non-atomic) statement.

Signature

(vl-compoundstmt->ctrl x) → ctrl

Arguments

x — Guard (vl-stmt-p x).

Returns

ctrl — Type (vl-maybe-delayoreventcontrol-p ctrl).

This really only makes sense for timing statements.

Definitions and Theorems

Function: vl-compoundstmt->ctrl

(defun vl-compoundstmt->ctrl (x)
  (declare (xargs :guard (vl-stmt-p x)))
  (declare (xargs :guard (not (vl-atomicstmt-p x))))
  (let ((__function__ 'vl-compoundstmt->ctrl))
    (declare (ignorable __function__))
    (if (vl-stmt-case x :vl-timingstmt)
        (vl-timingstmt->ctrl x)
      nil)))

Theorem: vl-maybe-delayoreventcontrol-p-of-vl-compoundstmt->ctrl

(defthm vl-maybe-delayoreventcontrol-p-of-vl-compoundstmt->ctrl
  (b* ((ctrl (vl-compoundstmt->ctrl x)))
    (vl-maybe-delayoreventcontrol-p ctrl))
  :rule-classes :rewrite)

Theorem: vl-compoundstmt->ctrl-is-usually-nil

(defthm vl-compoundstmt->ctrl-is-usually-nil
  (implies (not (vl-stmt-case x :vl-timingstmt))
           (equal (vl-compoundstmt->ctrl x) nil)))

Theorem: vl-compoundstmt->ctrl-of-vl-stmt-fix-x

(defthm vl-compoundstmt->ctrl-of-vl-stmt-fix-x
  (equal (vl-compoundstmt->ctrl (vl-stmt-fix x))
         (vl-compoundstmt->ctrl x)))

Theorem: vl-compoundstmt->ctrl-vl-stmt-equiv-congruence-on-x

(defthm vl-compoundstmt->ctrl-vl-stmt-equiv-congruence-on-x
  (implies (vl-stmt-equiv x x-equiv)
           (equal (vl-compoundstmt->ctrl x)
                  (vl-compoundstmt->ctrl x-equiv)))
  :rule-classes :congruence)