-;;;; allocation VOPs for the x86
+;;;; allocation VOPs for the x86-64
;;;; This software is part of the SBCL system. See the README file for
;;;; more information.
(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)
\f
;;;; special-purpose inline allocators
-(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)
+;;; ALLOCATE-VECTOR
+(define-vop (allocate-vector-on-heap)
+ (:args (type :scs (unsigned-reg))
+ (length :scs (any-reg))
+ (words :scs (any-reg)))
+ (:results (result :scs (descriptor-reg) :from :load))
+ (:arg-types positive-fixnum
+ positive-fixnum
+ positive-fixnum)
+ (:policy :fast-safe)
(: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)
+ (inst lea result (make-ea :byte :base words :disp
+ (+ (1- (ash 1 n-lowtag-bits))
+ (* vector-data-offset n-word-bytes))))
+ (inst and result (lognot lowtag-mask))
(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)))
+ (allocation result result)
+ (inst lea result (make-ea :byte :base result :disp other-pointer-lowtag))
+ (storew type result 0 other-pointer-lowtag)
+ (storew length result vector-length-slot other-pointer-lowtag))))
+
+(define-vop (allocate-vector-on-stack)
+ (:args (type :scs (unsigned-reg) :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 :eval) zero)
+ (:temporary (:sc any-reg :offset edi-offset) res)
+ (:results (result :scs (descriptor-reg) :from :load))
+ (:arg-types positive-fixnum
+ positive-fixnum
+ positive-fixnum)
+ (:translate allocate-vector)
+ (:policy :fast-safe)
+ (:node-var node)
+ (:generator 100
+ (inst lea result (make-ea :byte :base words :disp
+ (+ (1- (ash 1 n-lowtag-bits))
+ (* vector-data-offset n-word-bytes))))
+ (inst and result (lognot lowtag-mask))
+ ;; 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 other-pointer-lowtag)
+ (inst cld)
+ (inst lea res
+ (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)))
+
\f
(define-vop (make-fdefn)
(:policy :fast-safe)
(: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 (make-value-cell)
(:args (value :scs (descriptor-reg any-reg) :to :result))
(:results (result :scs (descriptor-reg) :from :eval))
+ (:info stack-allocate-p)
(:node-var node)
(:generator 10
(with-fixed-allocation
- (result value-cell-header-widetag value-cell-size node)
+ (result value-cell-header-widetag value-cell-size node stack-allocate-p)
(storew value result value-cell-value-slot other-pointer-lowtag))))
\f
;;;; automatic allocators for primitive objects
(:generator 1
(inst mov result unbound-marker-widetag)))
+(define-vop (make-funcallable-instance-tramp)
+ (:args)
+ (:results (result :scs (any-reg)))
+ (:generator 1
+ (inst lea result (make-fixup "funcallable_instance_tramp" :foreign))))
+
(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
(inst lea result (make-ea :byte :base result :disp lowtag))
(storew header result 0 lowtag))))
-(define-vop (make-symbol)
+(define-vop (%make-symbol)
(:policy :fast-safe)
- (:translate make-symbol)
+ (:translate %make-symbol)
(:args (name :scs (descriptor-reg) :to :eval))
(:temporary (:sc unsigned-reg :from :eval) temp)
(:results (result :scs (descriptor-reg) :from :argument))
projects / sbcl.git / blobdiff