;;;; files 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))))
(define-vop (list-or-list*)
(:args (things :more t))
(:results (result :scs (descriptor-reg)))
(:variant-vars star)
(:policy :safe)
+ (:node-var node)
(:generator 0
(cond ((zerop num)
(move result null-tn))
((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)
+ ((any-reg descriptor-reg zero 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)
+ (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)
(define-vop (list* list-or-list*)
(:variant t))
-
\f
;;;; Special purpose inline allocators.
(: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 (logior (ash (1- size) n-widetag-bits)
closure-header-widetag))
(storew temp result 0 fun-pointer-lowtag))
- (storew result result closure-self-slot 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)
+ (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)