;;;; files for more information.
(in-package "SB!VM")
-
-(file-comment
- "$Header$")
\f
;;;; LIST and LIST*
(:node-var node)
(:generator 0
(cond ((zerop num)
- ;; (move result *nil-value*)
- (inst mov result *nil-value*))
+ ;; (move result nil-value)
+ (inst mov result nil-value))
((and star (= num 1))
(move result (tn-ref-tn things)))
(t
(macrolet
- ((store-car (tn list &optional (slot sb!vm:cons-car-slot))
+ ((store-car (tn list &optional (slot cons-car-slot))
`(let ((reg
(sc-case ,tn
((any-reg descriptor-reg) ,tn)
((control-stack)
(move temp ,tn)
temp))))
- (storew reg ,list ,slot sb!vm:list-pointer-type))))
+ (storew reg ,list ,slot list-pointer-lowtag))))
(let ((cons-cells (if star (1- num) num)))
(pseudo-atomic
(allocation res (* (pad-data-block cons-size) cons-cells) node)
(inst lea res
- (make-ea :byte :base res :disp list-pointer-type))
+ (make-ea :byte :base res :disp 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 add ptr (pad-data-block cons-size))
(storew ptr ptr (- cons-cdr-slot cons-size)
- list-pointer-type))
+ 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 *nil-value* ptr cons-cdr-slot
- list-pointer-type)))
- (assert (null (tn-ref-across things)))))
+ (storew nil-value ptr cons-cdr-slot
+ list-pointer-lowtag)))
+ (aver (null (tn-ref-across things)))))
(move result res))))))
(define-vop (list list-or-list*)
;; -- WHN 19990916
;;
;; FIXME: should have a check for overflow of static space
- (load-symbol-value temp sb!impl::*static-space-free-pointer*)
- (inst lea result (make-ea :byte :base temp :disp other-pointer-type))
+ (load-symbol-value temp *static-space-free-pointer*)
+ (inst lea result (make-ea :byte :base temp :disp other-pointer-lowtag))
(inst add temp boxed)
(inst add temp unboxed)
- (store-symbol-value temp sb!impl::*static-space-free-pointer*)
- (inst shl boxed (- type-bits word-shift))
- (inst or boxed code-header-type)
- (storew boxed result 0 other-pointer-type)
- (storew unboxed result code-code-size-slot other-pointer-type)
- (inst mov temp *nil-value*)
- (storew temp result code-entry-points-slot other-pointer-type))
- (storew temp result code-debug-info-slot other-pointer-type)))
+ (store-symbol-value temp *static-space-free-pointer*)
+ (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)
+ (inst mov temp nil-value)
+ (storew temp result code-entry-points-slot other-pointer-lowtag))
+ (storew temp result code-debug-info-slot other-pointer-lowtag)))
(define-vop (allocate-dynamic-code-object)
(:args (boxed-arg :scs (any-reg) :target boxed)
(inst add result unboxed)
(pseudo-atomic
(allocation result result node)
- (inst lea result (make-ea :byte :base result :disp other-pointer-type))
- (inst shl boxed (- type-bits word-shift))
- (inst or boxed code-header-type)
- (storew boxed result 0 other-pointer-type)
- (storew unboxed result code-code-size-slot other-pointer-type)
- (storew *nil-value* result code-entry-points-slot other-pointer-type))
- (storew *nil-value* result code-debug-info-slot other-pointer-type)))
+ (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)
(:results (result :scs (descriptor-reg) :from :argument))
(:node-var node)
(:generator 37
- (with-fixed-allocation (result fdefn-type fdefn-size node)
- (storew name result fdefn-name-slot other-pointer-type)
- (storew *nil-value* result fdefn-function-slot other-pointer-type)
+ (with-fixed-allocation (result fdefn-widetag fdefn-size node)
+ (storew name result fdefn-name-slot other-pointer-lowtag)
+ (storew nil-value result fdefn-fun-slot other-pointer-lowtag)
(storew (make-fixup (extern-alien-name "undefined_tramp") :foreign)
- result fdefn-raw-addr-slot other-pointer-type))))
+ result fdefn-raw-addr-slot other-pointer-lowtag))))
(define-vop (make-closure)
(:args (function :to :save :scs (descriptor-reg)))
(let ((size (+ length closure-info-offset)))
(allocation result (pad-data-block size) node)
(inst lea result
- (make-ea :byte :base result :disp function-pointer-type))
- (storew (logior (ash (1- size) type-bits) closure-header-type)
- result 0 function-pointer-type))
- (loadw temp function closure-function-slot function-pointer-type)
- (storew temp result closure-function-slot function-pointer-type))))
+ (make-ea :byte :base result :disp 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)
+ (storew temp result closure-fun-slot fun-pointer-lowtag))))
;;; The compiler likes to be able to directly make value cells.
(define-vop (make-value-cell)
(:node-var node)
(:generator 10
(with-fixed-allocation
- (result value-cell-header-type value-cell-size node))
- (storew value result value-cell-value-slot other-pointer-type)))
+ (result value-cell-header-widetag value-cell-size node))
+ (storew value result value-cell-value-slot other-pointer-lowtag)))
\f
;;;; automatic allocators for primitive objects
(:args)
(:results (result :scs (any-reg)))
(:generator 1
- (inst mov result unbound-marker-type)))
+ (inst mov result unbound-marker-widetag)))
(define-vop (fixed-alloc)
(:args)
(allocation result (pad-data-block words) node)
(inst lea result (make-ea :byte :base result :disp lowtag))
(when type
- (storew (logior (ash (1- words) type-bits) type) result 0 lowtag)))))
+ (storew (logior (ash (1- words) n-widetag-bits) type)
+ result
+ 0
+ lowtag)))))
(define-vop (var-alloc)
(:args (extra :scs (any-reg)))
(:node-var node)
(:generator 50
(inst lea bytes
- (make-ea :dword :base extra :disp (* (1+ words) word-bytes)))
+ (make-ea :dword :base extra :disp (* (1+ words) n-word-bytes)))
(inst mov header bytes)
- (inst shl header (- type-bits 2)) ; w+1 to length field
-
+ (inst shl header (- n-widetag-bits 2)) ; w+1 to length field
(inst lea header ; (w-1 << 8) | type
- (make-ea :dword :base header :disp (+ (ash -2 type-bits) type)))
+ (make-ea :dword :base header :disp (+ (ash -2 n-widetag-bits) type)))
(inst and bytes (lognot lowtag-mask))
(pseudo-atomic
(allocation result bytes node)
(:results (result :scs (descriptor-reg) :from :argument))
(:node-var node)
(:generator 37
- (with-fixed-allocation (result symbol-header-type symbol-size node)
- (storew name result symbol-name-slot other-pointer-type)
- (storew unbound-marker-type result symbol-value-slot other-pointer-type)
+ (with-fixed-allocation (result symbol-header-widetag symbol-size node)
+ (storew name result symbol-name-slot other-pointer-lowtag)
+ (storew unbound-marker-widetag
+ result
+ symbol-value-slot
+ other-pointer-lowtag)
;; Set up a random hash value for the symbol. Perhaps the object
;; address could be used for even faster and smaller code!
;; FIXME: We don't mind the symbol hash not being repeatable, so
(inst mov (make-fixup (extern-alien-name "fast_random_state") :foreign)
temp)
;; We want a positive fixnum for the hash value, so discard the LS bits.
+ ;;
+ ;; FIXME: OK, who wants to tell me (CSR) why these two
+ ;; instructions aren't replaced by (INST AND TEMP #x8FFFFFFC)?
+ ;; Are the following two instructions actually faster? Does the
+ ;; difference in behaviour really matter?
(inst shr temp 1)
(inst and temp #xfffffffc)
- (storew temp result symbol-hash-slot other-pointer-type)
- (storew *nil-value* result symbol-plist-slot other-pointer-type)
- (storew *nil-value* result symbol-package-slot other-pointer-type))))
+ (storew temp result symbol-hash-slot other-pointer-lowtag)
+ (storew nil-value result symbol-plist-slot other-pointer-lowtag)
+ (storew nil-value result symbol-package-slot other-pointer-lowtag))))