(unsafe always-translatable))
#!+(or x86 x86-64)
-(defknown %raw-instance-atomic-incf/word (instance index sb!vm:signed-word) sb!vm:word
+(defknown %raw-instance-atomic-incf/word (instance index sb!vm:word) sb!vm:word
(unsafe always-translatable))
;;; These two are mostly used for bit-bashing operations.