nil)
#!+stack-allocatable-fixed-objects
-(defoptimizer (%make-structure-instance stack-allocate-result) ((&rest args) node dx)
+(defoptimizer (%make-structure-instance stack-allocate-result) ((defstruct-description &rest args) node dx)
+ (aver (constant-lvar-p defstruct-description))
+ ;; A structure instance can be stack-allocated if it has no raw
+ ;; slots, or if we're on a target with a conservatively-scavenged
+ ;; stack. We have no reader conditional for stack conservation, but
+ ;; it turns out that the only time stack conservation is in play is
+ ;; when we're on GENCGC (since CHENEYGC doesn't have conservation)
+ ;; and C-STACK-IS-CONTROL-STACK (otherwise, the C stack is the
+ ;; number stack, and we precisely-scavenge the control stack).
+ #!-(and :gencgc :c-stack-is-control-stack)
+ (zerop (sb!kernel::dd-raw-length (lvar-value defstruct-description)))
+ #!+(and :gencgc :c-stack-is-control-stack)
t)
(defoptimizer ir2-convert-reffer ((object) node block name offset lowtag)
(macrolet ((make-case ()
`(ecase raw-type
((t)
- (vop set-slot node block object arg-tn
+ (vop init-slot node block object arg-tn
name (+ sb!vm:instance-slots-offset slot) lowtag))
,@(mapcar (lambda (rsd)
`(,(sb!kernel::raw-slot-data-raw-type rsd)
nil))))
(make-case))))
(:dd
- (vop set-slot node block object
+ (vop init-slot node block object
(emit-constant (sb!kernel::dd-layout-or-lose slot))
name sb!vm:instance-slots-offset lowtag))
(otherwise
- (vop set-slot node block object
+ (vop init-slot node block object
(ecase kind
(:arg
(aver args)
,@(nreverse clauses)))))
(frob)))
(tnify (index)
- (constant-tn (find-constant index))))
+ (emit-constant index)))
(let ((setter (compute-setter))
(length (length initial-contents)))
(dotimes (i length)
(progn
(defoptimizer (allocate-vector stack-allocate-result)
((type length words) node dx)
- (or (eq dx :truly)
- (zerop (policy node safety))
- ;; a vector object should fit in one page -- otherwise it might go past
- ;; stack guard pages.
- (values-subtypep (lvar-derived-type words)
- (load-time-value
- (specifier-type `(integer 0 ,(- (/ sb!vm::*backend-page-bytes*
- sb!vm:n-word-bytes)
- sb!vm:vector-data-offset)))))))
+ (and
+ ;; Can't put unboxed data on the stack unless we scavenge it
+ ;; conservatively.
+ #!-c-stack-is-control-stack
+ (constant-lvar-p type)
+ #!-c-stack-is-control-stack
+ (member (lvar-value type)
+ '#.(list (sb!vm:saetp-typecode (find-saetp 't))
+ (sb!vm:saetp-typecode (find-saetp 'fixnum))))
+ (or (eq dx :always-dynamic)
+ (zerop (policy node safety))
+ ;; a vector object should fit in one page -- otherwise it might go past
+ ;; stack guard pages.
+ (values-subtypep (lvar-derived-type words)
+ (load-time-value
+ (specifier-type `(integer 0 ,(- (/ sb!vm::*backend-page-bytes*
+ sb!vm:n-word-bytes)
+ sb!vm:vector-data-offset))))))))
(defoptimizer (allocate-vector ltn-annotate) ((type length words) call ltn-policy)
(let ((args (basic-combination-args call))
;;; ...conses
#!+stack-allocatable-fixed-objects
-(defoptimizer (cons stack-allocate-result) ((&rest args) node dx)
- (declare (ignore node dx))
- t)
+(progn
+ (defoptimizer (cons stack-allocate-result) ((&rest args) node dx)
+ t)
+ (defoptimizer (%make-complex stack-allocate-result) ((&rest args) node dx)
+ t))