Incorrect value computed; SHIFTF is involved somehow
(funcall
(compile nil
'(lambda (b)
(declare (optimize debug speed))
(identity
(block nil
(shiftf b :bad)))))
:good)
==>
:BAD
(funcall
(compile nil
'(lambda (b)
(declare (optimize debug speed))
(identity
(block nil
(shiftf b :bad)))))
:good)
==>
:BAD