(in-package "SB!VM")
\f
-;;;; LIST and LIST*
-(defoptimizer (list stack-allocate-result) ((&rest args))
- (not (null args)))
-(defoptimizer (list* stack-allocate-result) ((&rest args))
- (not (null (rest args))))
-
+;;;; CONS, LIST and LIST*
(define-vop (list-or-list*)
(:args (things :more t))
(:temporary (:sc unsigned-reg) ptr temp)
(move temp ,tn)
temp))))
(storew reg ,list ,slot list-pointer-lowtag))))
- (let ((cons-cells (if star (1- num) num)))
- (pseudo-atomic
+ (let ((cons-cells (if star (1- num) num))
+ (stack-allocate-p (awhen (sb!c::node-lvar node)
+ (sb!c::lvar-dynamic-extent it))))
+ (maybe-pseudo-atomic stack-allocate-p
(allocation res (* (pad-data-block cons-size) cons-cells) node
- (awhen (sb!c::node-lvar node)
- (sb!c::lvar-dynamic-extent it)))
- (inst lea res
- (make-ea :byte :base res :disp list-pointer-lowtag))
+ stack-allocate-p list-pointer-lowtag)
(move ptr res)
(dotimes (i (1- cons-cells))
(store-car (tn-ref-tn things) ptr)
;; FIXME: It would be good to check for stack overflow here.
(move ecx words)
(inst shr ecx n-fixnum-tag-bits)
- (allocation result result node t)
+ (allocation result result node t other-pointer-lowtag)
(inst cld)
(inst lea res
- (make-ea :byte :base result :disp (* vector-data-offset n-word-bytes)))
- (inst lea result (make-ea :byte :base result :disp other-pointer-lowtag))
+ (make-ea :byte :base result :disp (- (* vector-data-offset n-word-bytes)
+ other-pointer-lowtag)))
(storew type result 0 other-pointer-lowtag)
(storew length result vector-length-slot other-pointer-lowtag)
(zeroize zero)
(inst rep)
(inst stos zero)))
-(in-package "SB!C")
-
-(defoptimizer (allocate-vector stack-allocate-result)
- ((type length words) node)
- (ecase (policy node stack-allocate-vector)
- (0 nil)
- ((1 2)
- ;; a vector object should fit in one page
- (values-subtypep (lvar-derived-type words)
- (load-time-value
- (specifier-type `(integer 0 ,(- (/ sb!vm::*backend-page-size*
- sb!vm:n-word-bytes)
- sb!vm:vector-data-offset))))))
- (3 t)))
-
-(defoptimizer (allocate-vector ltn-annotate) ((type length words) call ltn-policy)
- (let ((args (basic-combination-args call))
- (template (template-or-lose (if (awhen (node-lvar call)
- (lvar-dynamic-extent it))
- 'sb!vm::allocate-vector-on-stack
- 'sb!vm::allocate-vector-on-heap))))
- (dolist (arg args)
- (setf (lvar-info arg)
- (make-ir2-lvar (primitive-type (lvar-type arg)))))
- (unless (is-ok-template-use template call (ltn-policy-safe-p ltn-policy))
- (ltn-default-call call)
- (return-from allocate-vector-ltn-annotate-optimizer (values)))
- (setf (basic-combination-info call) template)
- (setf (node-tail-p call) nil)
-
- (dolist (arg args)
- (annotate-1-value-lvar arg))))
-
(in-package "SB!VM")
;;;
(:generator 10
(maybe-pseudo-atomic stack-allocate-p
(let ((size (+ length closure-info-offset)))
- (allocation result (pad-data-block size) node stack-allocate-p)
- (inst lea result
- (make-ea :byte :base result :disp fun-pointer-lowtag))
+ (allocation result (pad-data-block size) node stack-allocate-p
+ fun-pointer-lowtag)
(storew (logior (ash (1- size) n-widetag-bits) closure-header-widetag)
result 0 fun-pointer-lowtag))
(loadw temp function closure-fun-slot fun-pointer-lowtag)
(define-vop (fixed-alloc)
(:args)
- (:info name words type lowtag)
+ (:info name words type lowtag stack-allocate-p)
(:ignore name)
(:results (result :scs (descriptor-reg)))
(:node-var node)
(:generator 50
- (pseudo-atomic
- (allocation result (pad-data-block words) node)
- (inst lea result (make-ea :byte :base result :disp lowtag))
+ (maybe-pseudo-atomic stack-allocate-p
+ (allocation result (pad-data-block words) node stack-allocate-p lowtag)
(when type
(storew (logior (ash (1- words) n-widetag-bits) type)
result