(declare (type (simple-array ,element-type-specifier 1) array))
(data-vector-ref array index)))))
-;;; MNA: open-coded-simple-array patch
(deftransform data-vector-ref ((array index)
(simple-array t))
(let ((array-type (continuation-type array)))
(unless (array-type-p array-type)
(give-up-ir1-transform))
(let ((dims (array-type-dimensions array-type)))
- (when (and (consp dims) (= (length dims) 1))
+ (when (or (atom dims) (= (length dims) 1))
(give-up-ir1-transform))
- (let* ((el-type (array-type-element-type array-type))
- (total-size (if (or (atom dims) (member '* dims))
+ (let ((el-type (array-type-element-type array-type))
+ (total-size (if (member '* dims)
'*
- (reduce #'* dims)))
- (type-sp `(simple-array ,(type-specifier el-type)
- (,total-size))))
- (if (atom dims)
- `(let ((a (truly-the ,type-sp (%array-simp array))))
- (data-vector-ref a index))
- `(let ((a (truly-the ,type-sp (%array-data-vector array))))
- (data-vector-ref a index)))))))
+ (reduce #'* dims))))
+ `(data-vector-ref (truly-the (simple-array ,(type-specifier el-type)
+ (,total-size))
+ (%array-data-vector array))
+ index)))))
(deftransform hairy-data-vector-set ((array index new-value)
(array t t)
index
new-value)))))
-;;; MNA: open-coded-simple-array patch
(deftransform data-vector-set ((array index new-value)
- (simple-array t t))
+ (simple-array t t))
(let ((array-type (continuation-type array)))
(unless (array-type-p array-type)
(give-up-ir1-transform))
(let ((dims (array-type-dimensions array-type)))
- (when (and (consp dims) (= (length dims) 1))
- (give-up-ir1-transform))
- (let* ((el-type (array-type-element-type array-type))
- (total-size (if (or (atom dims) (member '* dims))
- '*
- (reduce #'* dims)))
- (type-sp `(simple-array ,(type-specifier el-type)
- (,total-size))))
- (if (atom dims)
- `(let ((a (truly-the ,type-sp (%array-simp array))))
- (data-vector-set a index new-value))
- `(let ((a (truly-the ,type-sp (%array-data-vector array))))
- (data-vector-set a index new-value)))))))
+ (when (or (atom dims) (= (length dims) 1))
+ (give-up-ir1-transform))
+ (let ((el-type (array-type-element-type array-type))
+ (total-size (if (member '* dims)
+ '*
+ (reduce #'* dims))))
+ `(data-vector-set (truly-the (simple-array ,(type-specifier el-type)
+ (,total-size))
+ (%array-data-vector array))
+ index
+ new-value)))))
;;; transforms for getting at simple arrays of (UNSIGNED-BYTE N) when (< N 8)
;;;
;;;; primitive translator for BYTE-BLT
(def-primitive-translator byte-blt (src src-start dst dst-start dst-end)
- `(let ((src ,src)
- (src-start (* ,src-start sb!vm:byte-bits))
- (dst ,dst)
- (dst-start (* ,dst-start sb!vm:byte-bits))
- (dst-end (* ,dst-end sb!vm:byte-bits)))
- (let ((length (- dst-end dst-start)))
- (etypecase src
- (system-area-pointer
- (etypecase dst
- (system-area-pointer
- (system-area-copy src src-start dst dst-start length))
- ((simple-unboxed-array (*))
- (copy-from-system-area src src-start
- dst (+ dst-start ,vector-data-bit-offset)
- length))))
- ((simple-unboxed-array (*))
- (etypecase dst
- (system-area-pointer
- (copy-to-system-area src (+ src-start ,vector-data-bit-offset)
- dst dst-start
- length))
- ((simple-unboxed-array (*))
- (bit-bash-copy src (+ src-start ,vector-data-bit-offset)
- dst (+ dst-start ,vector-data-bit-offset)
- length))))))))
+
+ ;; new version
+ ;;
+ ;; FIXME: CMU CL had a hairier implementation of this. It had the
+ ;; small problem that it didn't work for large (>16M) values of
+ ;; SRC-START or DST-START. However, it might have been more
+ ;; efficient. In particular, I haven't checked how much the foreign
+ ;; function call costs us here. My guess is that if the overhead is
+ ;; acceptable for SQRT and COS, it's acceptable here, but this
+ ;; should probably be checked. -- WHN
+ (once-only ((dst-start dst-start))
+ `(flet ((sap (thing)
+ (etypecase thing
+ (system-area-pointer thing)
+ ((simple-unboxed-array (*)) (vector-sap thing)))))
+ (declare (inline sap))
+ (without-gcing
+ (memmove (sap+ (sap ,dst) ,dst-start)
+ (sap+ (sap ,src) ,src-start)
+ (- ,dst-end ,dst-start))))))
\f
;;;; transforms for EQL of floating point values