(once-only ((n-dst dst)
(n-src src))
`(unless (location= ,n-dst ,n-src)
- (inst mov ,n-dst ,n-src))))
+ (sc-case ,n-dst
+ (single-reg
+ (inst movss ,n-dst ,n-src))
+ (double-reg
+ (inst movsd ,n-dst ,n-src))
+ (t
+ (inst mov ,n-dst ,n-src))))))
(defmacro make-ea-for-object-slot (ptr slot lowtag)
`(make-ea :qword :base ,ptr :disp (- (* ,slot n-word-bytes) ,lowtag)))