(define-vop (move-to-character)
(:args (x :scs (any-reg descriptor-reg)))
(:results (y :scs (character-reg)))
+ (:note "character untagging")
(:generator 1
(inst srl y x n-widetag-bits)))
+
(define-move-vop move-to-character :move
(any-reg descriptor-reg) (character-reg))
-
;;; Move an untagged char to a tagged representation.
(define-vop (move-from-character)
(:args (x :scs (character-reg)))
(:results (y :scs (any-reg descriptor-reg)))
+ (:note "character tagging")
(:generator 1
(inst sll y x n-widetag-bits)
- (inst or y y character-widetag)))
+ (inst or y character-widetag)))
+
(define-move-vop move-from-character :move
(character-reg) (any-reg descriptor-reg))
;;; Move untagged character values.
(define-vop (character-move)
(:args (x :target y
- :scs (character-reg)
- :load-if (not (location= x y))))
+ :scs (character-reg)
+ :load-if (not (location= x y))))
(:results (y :scs (character-reg)
- :load-if (not (location= x y))))
+ :load-if (not (location= x y))))
+ (:note "character move")
(:effects)
(:affected)
(:generator 0
(move y x)))
+
(define-move-vop character-move :move
(character-reg) (character-reg))
;;; Move untagged character arguments/return-values.
(define-vop (move-character-arg)
(:args (x :target y
- :scs (character-reg))
- (fp :scs (any-reg)
- :load-if (not (sc-is y character-reg))))
+ :scs (character-reg))
+ (fp :scs (any-reg)
+ :load-if (not (sc-is y character-reg))))
(:results (y))
+ (:note "character arg move")
(:generator 0
(sc-case y
(character-reg
(move y x))
(character-stack
(storew x fp (tn-offset y))))))
+
(define-move-vop move-character-arg :move-arg
(any-reg character-reg) (character-reg))
(:results (res :scs (any-reg)))
(:result-types positive-fixnum)
(:generator 1
- (inst sll res ch 2)))
+ (inst sll res ch n-fixnum-tag-bits)))
(define-vop (code-char)
(:translate code-char)
(:results (res :scs (character-reg)))
(:result-types character)
(:generator 1
- (inst srl res code 2)))
-
+ (inst srl res code n-fixnum-tag-bits)))
\f
;;; Comparison of characters.
-;;;
-(define-vop (character-compare pointer-compare)
+(define-vop (character-compare)
(:args (x :scs (character-reg))
- (y :scs (character-reg)))
- (:arg-types character character))
+ (y :scs (character-reg)))
+ (:arg-types character character)
+ (:temporary (:scs (non-descriptor-reg)) temp)
+ (:conditional)
+ (:info target not-p)
+ (:policy :fast-safe)
+ (:note "inline comparison")
+ (:variant-vars condition)
+ (:generator 3
+ (three-way-comparison x y condition :unsigned not-p target temp)))
(define-vop (fast-char=/character character-compare)
(:translate char=)