`(unsigned-byte ,high-length))
(t
`(mod ,(1+ high)))))
- ((and (= low sb!vm:*target-most-negative-fixnum*)
- (= high sb!vm:*target-most-positive-fixnum*))
+ ((and (= low sb!xc:most-negative-fixnum)
+ (= high sb!xc:most-positive-fixnum))
'fixnum)
((and (= low (lognot high))
(= high-count high-length)