Get the levels field from a vl-elabinstruction-pop.
(vl-elabinstruction-pop->levels x) → levels
This is an ordinary field accessor created by defprod.
Function:
(defun vl-elabinstruction-pop->levels$inline (x) (declare (xargs :guard (vl-elabinstruction-p x))) (declare (xargs :guard (equal (vl-elabinstruction-kind x) :pop))) (let ((__function__ 'vl-elabinstruction-pop->levels)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and (equal (vl-elabinstruction-kind x) :pop) x))) (nfix (std::da-nth 0 (cdr x)))) :exec (std::da-nth 0 (cdr x)))))
Theorem:
(defthm natp-of-vl-elabinstruction-pop->levels (b* ((levels (vl-elabinstruction-pop->levels$inline x))) (natp levels)) :rule-classes :type-prescription)
Theorem:
(defthm vl-elabinstruction-pop->levels$inline-of-vl-elabinstruction-fix-x (equal (vl-elabinstruction-pop->levels$inline (vl-elabinstruction-fix x)) (vl-elabinstruction-pop->levels$inline x)))
Theorem:
(defthm vl-elabinstruction-pop->levels$inline-vl-elabinstruction-equiv-congruence-on-x (implies (vl-elabinstruction-equiv x x-equiv) (equal (vl-elabinstruction-pop->levels$inline x) (vl-elabinstruction-pop->levels$inline x-equiv))) :rule-classes :congruence)
Theorem:
(defthm vl-elabinstruction-pop->levels-when-wrong-kind (implies (not (equal (vl-elabinstruction-kind x) :pop)) (equal (vl-elabinstruction-pop->levels x) (nfix nil))))