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Instruction-hash

Instruction-hash->arg

Get the arg field from a instruction-hash.

Signature
(instruction-hash->arg x) → arg
Arguments: x — Guard (instructionp x).
Returns: arg — Type (operandp arg).

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

Definitions and Theorems

Function: instruction-hash->arg$inline

(defun instruction-hash->arg$inline (x)
  (declare (xargs :guard (instructionp x)))
  (declare (xargs :guard (equal (instruction-kind x) :hash)))
  (let ((__function__ 'instruction-hash->arg))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and (equal (instruction-kind x) :hash)
                      x)))
           (operand-fix (std::da-nth 1 (cdr x))))
         :exec (std::da-nth 1 (cdr x)))))

Theorem: operandp-of-instruction-hash->arg

(defthm operandp-of-instruction-hash->arg
  (b* ((arg (instruction-hash->arg$inline x)))
    (operandp arg))
  :rule-classes :rewrite)

Theorem: instruction-hash->arg$inline-of-instruction-fix-x

(defthm instruction-hash->arg$inline-of-instruction-fix-x
  (equal (instruction-hash->arg$inline (instruction-fix x))
         (instruction-hash->arg$inline x)))

Theorem: instruction-hash->arg$inline-instruction-equiv-congruence-on-x

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

Theorem: instruction-hash->arg-when-wrong-kind

(defthm instruction-hash->arg-when-wrong-kind
  (implies (not (equal (instruction-kind x) :hash))
           (equal (instruction-hash->arg x)
                  (operand-fix nil))))