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Instruction-call

Instruction-call->ref

Get the ref field from a instruction-call.

Signature
(instruction-call->ref x) → ref
Arguments: x — Guard (instructionp x).
Returns: ref — Type (referencep ref).

This is an ordinary field accessor created by fty::defprod.

Definitions and Theorems

Function: instruction-call->ref$inline

(defun instruction-call->ref$inline (x)
  (declare (xargs :guard (instructionp x)))
  (declare (xargs :guard (equal (instruction-kind x) :call)))
  (let ((__function__ 'instruction-call->ref))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and (equal (instruction-kind x) :call)
                      x)))
           (reference-fix (std::da-nth 0 (cdr x))))
         :exec (std::da-nth 0 (cdr x)))))

Theorem: referencep-of-instruction-call->ref

(defthm referencep-of-instruction-call->ref
  (b* ((ref (instruction-call->ref$inline x)))
    (referencep ref))
  :rule-classes :rewrite)

Theorem: instruction-call->ref$inline-of-instruction-fix-x

(defthm instruction-call->ref$inline-of-instruction-fix-x
  (equal (instruction-call->ref$inline (instruction-fix x))
         (instruction-call->ref$inline x)))

Theorem: instruction-call->ref$inline-instruction-equiv-congruence-on-x

(defthm
     instruction-call->ref$inline-instruction-equiv-congruence-on-x
  (implies (instruction-equiv x x-equiv)
           (equal (instruction-call->ref$inline x)
                  (instruction-call->ref$inline x-equiv)))
  :rule-classes :congruence)

Theorem: instruction-call->ref-when-wrong-kind

(defthm instruction-call->ref-when-wrong-kind
  (implies (not (equal (instruction-kind x) :call))
           (equal (instruction-call->ref x)
                  (reference-fix nil))))