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        • !fgl-function-mode->dont-rewrite-under-if-test
        • !fgl-function-mode->dont-primitive-exec
        • !fgl-function-mode->dont-concrete-exec
        • !fgl-function-mode->dont-expand-def
        • !fgl-function-mode->dont-rewrite
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        • Fgl-function-mode->dont-rewrite-under-if-test
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        • Fgl-function-mode->dont-expand-def
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• Fgl-function-mode

Fgl-function-mode->dont-expand-def

Access the |FGL|::|DONT-EXPAND-DEF| field of a fgl-function-mode bit structure.

Signature

(fgl-function-mode->dont-expand-def x) → dont-expand-def

Arguments

x — Guard (fgl-function-mode-p x).

Returns

dont-expand-def — Type (booleanp dont-expand-def).

Definitions and Theorems

Function: fgl-function-mode->dont-expand-def

(defun fgl-function-mode->dont-expand-def (x)
 (declare (xargs :guard (fgl-function-mode-p x)))
 (mbe
     :logic
     (let ((x (fgl-function-mode-fix x)))
       (bit->bool (acl2::part-select x :low 2 :width 1)))
     :exec
     (bit->bool
          (the (unsigned-byte 1)
               (logand (the (unsigned-byte 1) 1)
                       (the (unsigned-byte 4)
                            (ash (the (unsigned-byte 6) x) -2)))))))

Theorem: booleanp-of-fgl-function-mode->dont-expand-def

(defthm booleanp-of-fgl-function-mode->dont-expand-def
  (b* ((dont-expand-def (fgl-function-mode->dont-expand-def x)))
    (booleanp dont-expand-def))
  :rule-classes :rewrite)

Theorem: fgl-function-mode->dont-expand-def-of-fgl-function-mode-fix-x

(defthm
      fgl-function-mode->dont-expand-def-of-fgl-function-mode-fix-x
 (equal
      (fgl-function-mode->dont-expand-def (fgl-function-mode-fix x))
      (fgl-function-mode->dont-expand-def x)))

Theorem: fgl-function-mode->dont-expand-def-fgl-function-mode-equiv-congruence-on-x

(defthm
 fgl-function-mode->dont-expand-def-fgl-function-mode-equiv-congruence-on-x
 (implies (fgl-function-mode-equiv x x-equiv)
          (equal (fgl-function-mode->dont-expand-def x)
                 (fgl-function-mode->dont-expand-def x-equiv)))
 :rule-classes :congruence)

Theorem: fgl-function-mode->dont-expand-def-of-fgl-function-mode

(defthm fgl-function-mode->dont-expand-def-of-fgl-function-mode
 (equal
     (fgl-function-mode->dont-expand-def
          (fgl-function-mode split-ifs
                             dont-concrete-exec dont-expand-def
                             dont-rewrite dont-rewrite-under-if-test
                             dont-primitive-exec))
     (bool-fix dont-expand-def)))

Theorem: fgl-function-mode->dont-expand-def-of-write-with-mask

(defthm fgl-function-mode->dont-expand-def-of-write-with-mask
  (implies (and (fty::bitstruct-read-over-write-hyps
                     x fgl-function-mode-equiv-under-mask)
                (fgl-function-mode-equiv-under-mask x y fty::mask)
                (equal (logand (lognot fty::mask) 4) 0))
           (equal (fgl-function-mode->dont-expand-def x)
                  (fgl-function-mode->dont-expand-def y))))