Incorrect value computed in integer code

[pfdietz]

Compiling this function:

(defun f320 (b)
  (declare (type (integer -68847508698084903 448367229394151423) b))
  (declare (optimize (safety 1) (speed 3)))
  (setf b (min 448367229394151423 (max -68847508698084903 (+ b b 0 b)))))

gives incorrect code

(f320 390985184385489915) should be 448367229394151423, but it returns -68847508698084903