(in-package "SB!VM")
\f
;;;; CONS, LIST and LIST*
-(defoptimizer (cons stack-allocate-result) ((&rest args))
- t)
-(defoptimizer (list stack-allocate-result) ((&rest args))
- (not (null args)))
-(defoptimizer (list* stack-allocate-result) ((&rest args))
- (not (null (rest args))))
-
(define-vop (list-or-list*)
(:args (things :more t))
(:temporary (:sc unsigned-reg) ptr temp)
(storew length result vector-length-slot other-pointer-lowtag)))))))
(define-vop (allocate-vector-on-stack)
- (:args (type :scs (unsigned-reg immediate))
- (length :scs (any-reg))
+ (:args (type :scs (unsigned-reg immediate) :to :save)
+ (length :scs (any-reg) :to :eval :target zero)
(words :scs (any-reg) :target ecx))
(:temporary (:sc any-reg :offset ecx-offset :from (:argument 2)) ecx)
- (:temporary (:sc any-reg :offset eax-offset :from (:argument 2)) zero)
- (:temporary (:sc any-reg :offset edi-offset :from (:argument 0)) res)
+ (:temporary (:sc any-reg :offset eax-offset :from :eval) zero)
+ (:temporary (:sc any-reg :offset edi-offset) res)
(:results (result :scs (descriptor-reg) :from :load))
(:arg-types positive-fixnum
positive-fixnum
(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")
-
-;;;
-(define-vop (allocate-code-object)
- (:args (boxed-arg :scs (any-reg) :target boxed)
- (unboxed-arg :scs (any-reg) :target unboxed))
- (:results (result :scs (descriptor-reg) :from :eval))
- (:temporary (:sc unsigned-reg :from (:argument 0)) boxed)
- (:temporary (:sc unsigned-reg :from (:argument 1)) unboxed)
- (:node-var node)
- (:generator 100
- (move boxed boxed-arg)
- (inst add boxed (fixnumize (1+ code-trace-table-offset-slot)))
- (inst and boxed (lognot lowtag-mask))
- (move unboxed unboxed-arg)
- (inst shr unboxed word-shift)
- (inst add unboxed lowtag-mask)
- (inst and unboxed (lognot lowtag-mask))
- (inst mov result boxed)
- (inst add result unboxed)
- (pseudo-atomic
- (allocation result result node)
- (inst lea result (make-ea :byte :base result :disp other-pointer-lowtag))
- (inst shl boxed (- n-widetag-bits word-shift))
- (inst or boxed code-header-widetag)
- (storew boxed result 0 other-pointer-lowtag)
- (storew unboxed result code-code-size-slot other-pointer-lowtag)
- (storew nil-value result code-entry-points-slot other-pointer-lowtag))
- (storew nil-value result code-debug-info-slot other-pointer-lowtag)))
\f
(define-vop (make-fdefn)
(:policy :fast-safe)