(inst sll y x 2)
(pseudo-atomic
- (pa-flag :extra (pad-data-block (+ bignum-digits-offset 2)))
+ (pa-flag :extra (pad-data-block (+ bignum-digits-offset 2)))
(inst or y alloc-tn other-pointer-lowtag)
(inst slt temp x zero-tn)
(inst sll temp n-widetag-bits)