-(in-package "SB!VM")
+;;;; allocation VOPs for Mips
+
+;;;; This software is part of the SBCL system. See the README file for
+;;;; more information.
+;;;;
+;;;; This software is derived from the CMU CL system, which was
+;;;; written at Carnegie Mellon University and released into the
+;;;; public domain. The software is in the public domain and is
+;;;; provided with absolutely no warranty. See the COPYING and CREDITS
+;;;; files for more information.
+(in-package "SB!VM")
\f
;;;; LIST and LIST*
-
(define-vop (list-or-list*)
(:args (things :more t))
(:temporary (:scs (descriptor-reg) :type list) ptr)
(:temporary (:scs (descriptor-reg)) temp)
(:temporary (:scs (descriptor-reg) :type list :to (:result 0) :target result)
- res)
+ res)
(:temporary (:sc non-descriptor-reg :offset nl4-offset) pa-flag)
(:info num)
(:results (result :scs (descriptor-reg)))
(:variant-vars star)
(:policy :safe)
+ (:node-var node)
(:generator 0
(cond ((zerop num)
- (move result null-tn))
- ((and star (= num 1))
- (move result (tn-ref-tn things)))
- (t
- (macrolet
- ((store-car (tn list &optional (slot cons-car-slot))
- `(let ((reg
- (sc-case ,tn
- ((any-reg descriptor-reg) ,tn)
- (zero zero-tn)
- (null null-tn)
- (control-stack
- (load-stack-tn temp ,tn)
- temp))))
- (storew reg ,list ,slot list-pointer-lowtag))))
- (let ((cons-cells (if star (1- num) num)))
- (pseudo-atomic (pa-flag
- :extra (* (pad-data-block cons-size)
- cons-cells))
- (inst or res alloc-tn list-pointer-lowtag)
- (move ptr res)
- (dotimes (i (1- cons-cells))
- (store-car (tn-ref-tn things) ptr)
- (setf things (tn-ref-across things))
- (inst addu ptr ptr (pad-data-block cons-size))
- (storew ptr ptr
- (- cons-cdr-slot cons-size)
- list-pointer-lowtag))
- (store-car (tn-ref-tn things) ptr)
- (cond (star
- (setf things (tn-ref-across things))
- (store-car (tn-ref-tn things) ptr cons-cdr-slot))
- (t
- (storew null-tn ptr
- cons-cdr-slot list-pointer-lowtag)))
- (assert (null (tn-ref-across things)))
- (move result res))))))))
+ (move result null-tn))
+ ((and star (= num 1))
+ (move result (tn-ref-tn things)))
+ (t
+ (macrolet
+ ((store-car (tn list &optional (slot cons-car-slot))
+ `(let ((reg
+ (sc-case ,tn
+ ((any-reg descriptor-reg zero null)
+ ,tn)
+ (control-stack
+ (load-stack-tn temp ,tn)
+ temp))))
+ (storew reg ,list ,slot list-pointer-lowtag))))
+ (let* ((dx-p (node-stack-allocate-p node))
+ (cons-cells (if star (1- num) num))
+ (alloc (* (pad-data-block cons-size) cons-cells)))
+ (pseudo-atomic (pa-flag :extra (if dx-p 0 alloc))
+ (when dx-p
+ (align-csp res))
+ (inst srl res (if dx-p csp-tn alloc-tn) n-lowtag-bits)
+ (inst sll res n-lowtag-bits)
+ (inst or res list-pointer-lowtag)
+ (when dx-p
+ (inst addu csp-tn alloc))
+ (move ptr res)
+ (dotimes (i (1- cons-cells))
+ (store-car (tn-ref-tn things) ptr)
+ (setf things (tn-ref-across things))
+ (inst addu ptr ptr (pad-data-block cons-size))
+ (storew ptr ptr
+ (- cons-cdr-slot cons-size)
+ list-pointer-lowtag))
+ (store-car (tn-ref-tn things) ptr)
+ (cond (star
+ (setf things (tn-ref-across things))
+ (store-car (tn-ref-tn things) ptr cons-cdr-slot))
+ (t
+ (storew null-tn ptr
+ cons-cdr-slot list-pointer-lowtag)))
+ (aver (null (tn-ref-across things)))
+ (move result res))))))))
(define-vop (list list-or-list*)
(:variant nil))
(define-vop (list* list-or-list*)
(:variant t))
-
\f
;;;; Special purpose inline allocators.
+;;; ALLOCATE-VECTOR
+(define-vop (allocate-vector-on-heap)
+ (:args (type :scs (unsigned-reg))
+ (length :scs (any-reg))
+ (words :scs (any-reg)))
+ (:arg-types positive-fixnum
+ positive-fixnum
+ positive-fixnum)
+ (:temporary (:sc non-descriptor-reg) bytes)
+ (:temporary (:sc non-descriptor-reg :offset nl4-offset) pa-flag)
+ (:results (result :scs (descriptor-reg) :from :load))
+ (:policy :fast-safe)
+ (:generator 100
+ (inst addu bytes words (+ lowtag-mask
+ (* vector-data-offset n-word-bytes)))
+ (inst srl bytes n-lowtag-bits)
+ (inst sll bytes n-lowtag-bits)
+ (pseudo-atomic (pa-flag)
+ (inst or result alloc-tn other-pointer-lowtag)
+ (inst addu alloc-tn bytes)
+ (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))
+ (length :scs (any-reg))
+ (words :scs (any-reg)))
+ (:arg-types positive-fixnum
+ positive-fixnum
+ positive-fixnum)
+ (:temporary (:sc non-descriptor-reg) bytes)
+ (:temporary (:sc non-descriptor-reg) temp)
+ (:temporary (:sc non-descriptor-reg :offset nl4-offset) pa-flag)
+ (:results (result :scs (descriptor-reg) :from :load))
+ (:policy :fast-safe)
+ (:generator 100
+ (inst addu bytes words (+ lowtag-mask
+ (* vector-data-offset n-word-bytes)))
+ (inst srl bytes n-lowtag-bits)
+ (inst sll bytes n-lowtag-bits)
+ ;; FIXME: It would be good to check for stack overflow here.
+ (pseudo-atomic (pa-flag)
+ (align-csp temp)
+ (inst or result csp-tn other-pointer-lowtag)
+ (inst addu temp csp-tn (* vector-data-offset n-word-bytes))
+ (inst addu csp-tn bytes)
+ (storew type result 0 other-pointer-lowtag)
+ (storew length result vector-length-slot other-pointer-lowtag)
+ (let ((loop (gen-label)))
+ (emit-label loop)
+ (storew zero-tn temp 0)
+ (inst bne temp csp-tn loop)
+ (inst addu temp n-word-bytes))
+ (align-csp temp))))
+
(define-vop (allocate-code-object)
(:args (boxed-arg :scs (any-reg))
- (unboxed-arg :scs (any-reg)))
+ (unboxed-arg :scs (any-reg)))
(:results (result :scs (descriptor-reg)))
(:temporary (:scs (non-descriptor-reg)) ndescr)
(:temporary (:scs (any-reg) :from (:argument 0)) boxed)
(:generator 100
(inst li ndescr (lognot lowtag-mask))
(inst addu boxed boxed-arg
- (fixnumize (1+ code-trace-table-offset-slot)))
+ (fixnumize (1+ code-trace-table-offset-slot)))
(inst and boxed ndescr)
(inst srl unboxed unboxed-arg word-shift)
(inst addu unboxed unboxed lowtag-mask)
(inst and unboxed ndescr)
(inst sll ndescr boxed (- n-widetag-bits word-shift))
(inst or ndescr code-header-widetag)
-
+
(pseudo-atomic (pa-flag)
(inst or result alloc-tn other-pointer-lowtag)
+ (inst addu alloc-tn boxed)
(storew ndescr result 0 other-pointer-lowtag)
(storew unboxed result code-code-size-slot other-pointer-lowtag)
+ (inst addu alloc-tn unboxed)
(storew null-tn result code-entry-points-slot other-pointer-lowtag)
- (inst addu alloc-tn boxed)
- (inst addu alloc-tn unboxed))
-
- (storew null-tn result code-debug-info-slot other-pointer-lowtag)))
+ (storew null-tn result code-debug-info-slot other-pointer-lowtag))))
(define-vop (make-fdefn)
(:policy :fast-safe)
(:temporary (:sc non-descriptor-reg :offset nl4-offset) pa-flag)
(:results (result :scs (descriptor-reg) :from :argument))
(:generator 37
- (with-fixed-allocation (result pa-flag temp fdefn-widetag fdefn-size)
+ (with-fixed-allocation (result pa-flag temp fdefn-widetag fdefn-size nil)
+ (inst li temp (make-fixup "undefined_tramp" :foreign))
(storew name result fdefn-name-slot other-pointer-lowtag)
(storew null-tn result fdefn-fun-slot other-pointer-lowtag)
- (inst li temp (make-fixup "undefined_tramp" :foreign))
(storew temp result fdefn-raw-addr-slot other-pointer-lowtag))))
(define-vop (make-closure)
(:args (function :to :save :scs (descriptor-reg)))
- (:info length)
+ (:info length stack-allocate-p)
(:temporary (:scs (non-descriptor-reg)) temp)
(:temporary (:sc non-descriptor-reg :offset nl4-offset) pa-flag)
(:results (result :scs (descriptor-reg)))
(:generator 10
- (let ((size (+ length closure-info-offset)))
- (inst li temp (logior (ash (1- size) n-widetag-bits) closure-header-widetag))
- (pseudo-atomic (pa-flag :extra (pad-data-block size))
- (inst or result alloc-tn fun-pointer-lowtag)
- (storew temp result 0 fun-pointer-lowtag))
- (storew function result closure-fun-slot fun-pointer-lowtag))))
+ (let* ((size (+ length closure-info-offset))
+ (alloc-size (pad-data-block size)))
+ (pseudo-atomic (pa-flag :extra (if stack-allocate-p 0 alloc-size))
+ (cond (stack-allocate-p
+ (align-csp result)
+ (inst srl result csp-tn n-lowtag-bits)
+ (inst addu csp-tn alloc-size))
+ (t
+ (inst srl result alloc-tn n-lowtag-bits)))
+ (inst sll result n-lowtag-bits)
+ (inst or result fun-pointer-lowtag)
+ (inst li temp (logior (ash (1- size) n-widetag-bits)
+ closure-header-widetag))
+ (storew temp result 0 fun-pointer-lowtag)
+ (storew function result closure-fun-slot fun-pointer-lowtag)))))
;;; The compiler likes to be able to directly make value cells.
-;;;
(define-vop (make-value-cell)
(:args (value :to :save :scs (descriptor-reg any-reg null zero)))
(:temporary (:scs (non-descriptor-reg)) temp)
(:temporary (:sc non-descriptor-reg :offset nl4-offset) pa-flag)
+ (:info stack-allocate-p)
(:results (result :scs (descriptor-reg)))
(:generator 10
- (with-fixed-allocation
- (result pa-flag temp value-cell-header-widetag value-cell-size))
- (storew value result value-cell-value-slot other-pointer-lowtag)))
-
+ (with-fixed-allocation (result pa-flag temp value-cell-header-widetag
+ value-cell-size stack-allocate-p)
+ (storew value result value-cell-value-slot other-pointer-lowtag))))
\f
;;;; Automatic allocators for primitive objects.
(:generator 1
(inst li result unbound-marker-widetag)))
+(define-vop (make-funcallable-instance-tramp)
+ (:args)
+ (:results (result :scs (any-reg)))
+ (:generator 1
+ (inst li 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)))
(:temporary (:scs (non-descriptor-reg)) temp)
(:temporary (:sc non-descriptor-reg :offset nl4-offset) pa-flag)
(:generator 4
- (pseudo-atomic (pa-flag :extra (pad-data-block words))
- (inst or result alloc-tn lowtag)
+ (pseudo-atomic (pa-flag :extra (if stack-allocate-p
+ 0
+ (pad-data-block words)))
+ (cond (stack-allocate-p
+ (align-csp result)
+ (inst or result csp-tn lowtag)
+ (inst addu csp-tn (pad-data-block words)))
+ (t
+ ;; The pseudo-atomic bit in alloc-tn is set. If the
+ ;; lowtag also has a 1 bit in the same position, we're all
+ ;; set. Otherwise, we need to subtract the pseudo-atomic
+ ;; bit.
+ (inst or result alloc-tn (if (logbitp 0 lowtag) lowtag
+ (1- lowtag)))))
(when type
- (inst li temp (logior (ash (1- words) n-widetag-bits) type))
- (storew temp result 0 lowtag)))))
+ (inst li temp (logior (ash (1- words) n-widetag-bits) type))
+ (storew temp result 0 lowtag)))))
(define-vop (var-alloc)
(:args (extra :scs (any-reg)))
(:info name words type lowtag)
(:ignore name)
(:results (result :scs (descriptor-reg)))
- (:temporary (:scs (any-reg)) header)
- (:temporary (:scs (non-descriptor-reg)) bytes)
+ (:temporary (:scs (any-reg)) bytes)
+ (:temporary (:scs (non-descriptor-reg)) header)
(:temporary (:sc non-descriptor-reg :offset nl4-offset) pa-flag)
(:generator 6
(inst addu bytes extra (* (1+ words) n-word-bytes))
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