- (:translate data-vector-set)
- (:policy :fast-safe)
- (:args (object :scs (descriptor-reg))
- (value :scs (unsigned-reg zero immediate) :target result))
- (:arg-types ,type
- (:constant index)
- positive-fixnum)
- (:info index)
- (:results (result :scs (unsigned-reg)))
- (:result-types positive-fixnum)
- (:temporary (:scs (non-descriptor-reg)) offset-reg temp old)
- (:generator 20
- (multiple-value-bind (word extra) (floor index ,elements-per-word)
- (let ((offset (- (* (+ word sb!vm:vector-data-offset) sb!vm:n-word-bytes)
- sb!vm:other-pointer-lowtag)))
- (cond ((typep offset '(signed-byte 16))
- (inst lwz old object offset))
- (t
- (inst lr offset-reg offset)
- (inst lwzx old object offset-reg)))
- (unless (and (sc-is value immediate)
- (= (tn-value value) ,(1- (ash 1 bits))))
- (cond ((zerop extra)
- (inst slwi old old ,bits)
- (inst srwi old old ,bits))
- (t
- (inst lr temp
- (lognot (ash ,(1- (ash 1 bits))
- (* (logxor extra
- ,(1- elements-per-word))
- ,bits))))
- (inst and old old temp))))
- (sc-case value
- (zero)
- (immediate
- (let ((value (ash (logand (tn-value value)
- ,(1- (ash 1 bits)))
- (* (logxor extra
- ,(1- elements-per-word))
- ,bits))))
- (cond ((typep value '(unsigned-byte 16))
- (inst ori old old value))
- (t
- (inst lr temp value)
- (inst or old old temp)))))
- (unsigned-reg
- (inst slwi temp value
- (* (logxor extra ,(1- elements-per-word)) ,bits))
- (inst or old old temp)))
- (if (typep offset '(signed-byte 16))
- (inst stw old object offset)
- (inst stwx old object offset-reg)))
- (sc-case value
- (immediate
- (inst lr result (tn-value value)))
- (t
- (move result value))))))))))
+ (:translate data-vector-set)
+ (:policy :fast-safe)
+ (:args (object :scs (descriptor-reg))
+ (value :scs (unsigned-reg zero immediate) :target result))
+ (:arg-types ,type
+ (:constant index)
+ positive-fixnum)
+ (:info index)
+ (:results (result :scs (unsigned-reg)))
+ (:result-types positive-fixnum)
+ (:temporary (:scs (non-descriptor-reg)) offset-reg temp old)
+ (:generator 20
+ (multiple-value-bind (word extra) (floor index ,elements-per-word)
+ (let ((offset (- (* (+ word vector-data-offset) n-word-bytes)
+ other-pointer-lowtag)))
+ (cond ((typep offset '(signed-byte 16))
+ (inst lwz old object offset))
+ (t
+ (inst lr offset-reg offset)
+ (inst lwzx old object offset-reg)))
+ (unless (and (sc-is value immediate)
+ (= (tn-value value) ,(1- (ash 1 bits))))
+ (cond ((zerop extra)
+ (inst clrlwi old old ,bits))
+ (t
+ (inst lr temp
+ (lognot (ash ,(1- (ash 1 bits))
+ (* (logxor extra
+ ,(1- elements-per-word))
+ ,bits))))
+ (inst and old old temp))))
+ (sc-case value
+ (zero)
+ (immediate
+ (let ((value (ash (logand (tn-value value)
+ ,(1- (ash 1 bits)))
+ (* (logxor extra
+ ,(1- elements-per-word))
+ ,bits))))
+ (cond ((typep value '(unsigned-byte 16))
+ (inst ori old old value))
+ (t
+ (inst lr temp value)
+ (inst or old old temp)))))
+ (unsigned-reg
+ (inst slwi temp value
+ (* (logxor extra ,(1- elements-per-word)) ,bits))
+ (inst or old old temp)))
+ (if (typep offset '(signed-byte 16))
+ (inst stw old object offset)
+ (inst stwx old object offset-reg)))
+ (sc-case value
+ (immediate
+ (inst lr result (tn-value value)))
+ (t
+ (move result value))))))))))