1 ;;;; various primitive memory access VOPs for the x86 VM
3 ;;;; This software is part of the SBCL system. See the README file for
6 ;;;; This software is derived from the CMU CL system, which was
7 ;;;; written at Carnegie Mellon University and released into the
8 ;;;; public domain. The software is in the public domain and is
9 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
10 ;;;; files for more information.
14 ;;;; data object ref/set stuff
17 (:args (object :scs (descriptor-reg)))
18 (:info name offset lowtag)
20 (:results (result :scs (descriptor-reg any-reg)))
22 (loadw result object offset lowtag)))
24 (define-vop (set-slot)
25 (:args (object :scs (descriptor-reg))
26 (value :scs (descriptor-reg any-reg immediate)))
27 (:info name offset lowtag)
31 (if (sc-is value immediate)
32 (let ((val (tn-value value)))
35 (storew (fixnumize val)
36 object offset lowtag))
38 (storew (+ nil-value (static-symbol-offset val))
39 object offset lowtag))
41 (storew (logior (ash (char-code val) n-widetag-bits)
43 object offset lowtag))))
44 ;; Else, value not immediate.
45 (storew value object offset lowtag))))
49 ;;;; symbol hacking VOPs
51 ;;; these next two cf the sparc version, by jrd.
52 ;;; FIXME: Deref this ^ reference.
55 ;;; The compiler likes to be able to directly SET symbols.
58 (:args (symbol :scs (descriptor-reg))
59 (value :scs (descriptor-reg any-reg)))
60 (:temporary (:sc descriptor-reg) tls)
61 ;;(:policy :fast-safe)
63 (let ((global-val (gen-label))
65 (loadw tls symbol symbol-tls-index-slot other-pointer-lowtag)
67 (inst jmp :z global-val)
68 (inst fs-segment-prefix)
69 (inst cmp (make-ea :dword :base tls) no-tls-value-marker-widetag)
70 (inst jmp :z global-val)
71 (inst fs-segment-prefix)
72 (inst mov (make-ea :dword :base tls) value)
74 (emit-label global-val)
75 (storew value symbol symbol-value-slot other-pointer-lowtag)
78 ;; unithreaded it's a lot simpler ...
80 (define-vop (set cell-set)
81 (:variant symbol-value-slot other-pointer-lowtag))
83 ;;; With Symbol-Value, we check that the value isn't the trap object. So
84 ;;; Symbol-Value of NIL is NIL.
86 (define-vop (symbol-value)
87 (:translate symbol-value)
89 (:args (object :scs (descriptor-reg) :to (:result 1)))
90 (:results (value :scs (descriptor-reg any-reg)))
92 (:save-p :compute-only)
94 (let* ((check-unbound-label (gen-label))
95 (err-lab (generate-error-code vop unbound-symbol-error object))
96 (ret-lab (gen-label)))
97 (loadw value object symbol-tls-index-slot other-pointer-lowtag)
98 (inst fs-segment-prefix)
99 (inst mov value (make-ea :dword :base value))
100 (inst cmp value no-tls-value-marker-widetag)
101 (inst jmp :ne check-unbound-label)
102 (loadw value object symbol-value-slot other-pointer-lowtag)
103 (emit-label check-unbound-label)
104 (inst cmp value unbound-marker-widetag)
105 (inst jmp :e err-lab)
106 (emit-label ret-lab))))
109 (define-vop (fast-symbol-value symbol-value)
110 ;; KLUDGE: not really fast, in fact, because we're going to have to
111 ;; do a full lookup of the thread-local area anyway. But half of
112 ;; the meaning of FAST-SYMBOL-VALUE is "do not signal an error if
113 ;; unbound", which is used in the implementation of COPY-SYMBOL. --
116 (:translate symbol-value)
118 (let ((ret-lab (gen-label)))
119 (loadw value object symbol-tls-index-slot other-pointer-lowtag)
120 (inst fs-segment-prefix)
121 (inst mov value (make-ea :dword :base value))
122 (inst cmp value no-tls-value-marker-widetag)
123 (inst jmp :ne ret-lab)
124 (loadw value object symbol-value-slot other-pointer-lowtag)
125 (emit-label ret-lab))))
128 (define-vop (symbol-value)
129 (:translate symbol-value)
131 (:args (object :scs (descriptor-reg) :to (:result 1)))
132 (:results (value :scs (descriptor-reg any-reg)))
134 (:save-p :compute-only)
136 (let ((err-lab (generate-error-code vop unbound-symbol-error object)))
137 (loadw value object symbol-value-slot other-pointer-lowtag)
138 (inst cmp value unbound-marker-widetag)
139 (inst jmp :e err-lab))))
142 (define-vop (fast-symbol-value cell-ref)
143 (:variant symbol-value-slot other-pointer-lowtag)
145 (:translate symbol-value))
147 (defknown locked-symbol-global-value-add (symbol fixnum) fixnum ())
149 (define-vop (locked-symbol-global-value-add)
150 (:args (object :scs (descriptor-reg) :to :result)
151 (value :scs (any-reg) :target result))
152 (:arg-types * tagged-num)
153 (:results (result :scs (any-reg) :from (:argument 1)))
155 (:translate locked-symbol-global-value-add)
156 (:result-types tagged-num)
161 (inst add (make-ea-for-object-slot object symbol-value-slot
162 other-pointer-lowtag)
169 (:args (object :scs (descriptor-reg)))
172 (:temporary (:sc descriptor-reg #+nil(:from (:argument 0))) value)
174 (let ((check-unbound-label (gen-label)))
175 (loadw value object symbol-tls-index-slot other-pointer-lowtag)
176 (inst fs-segment-prefix)
177 (inst mov value (make-ea :dword :base value))
178 (inst cmp value no-tls-value-marker-widetag)
179 (inst jmp :ne check-unbound-label)
180 (loadw value object symbol-value-slot other-pointer-lowtag)
181 (emit-label check-unbound-label)
182 (inst cmp value unbound-marker-widetag)
183 (inst jmp (if not-p :e :ne) target))))
189 (:args (object :scs (descriptor-reg)))
193 (inst cmp (make-ea-for-object-slot object symbol-value-slot
194 other-pointer-lowtag)
195 unbound-marker-widetag)
196 (inst jmp (if not-p :e :ne) target)))
199 (define-vop (symbol-hash)
201 (:translate symbol-hash)
202 (:args (symbol :scs (descriptor-reg)))
203 (:results (res :scs (any-reg)))
204 (:result-types positive-fixnum)
206 ;; The symbol-hash slot of NIL holds NIL because it is also the
207 ;; cdr slot, so we have to strip off the two low bits to make sure
208 ;; it is a fixnum. The lowtag selection magic that is required to
209 ;; ensure this is explained in the comment in objdef.lisp
210 (loadw res symbol symbol-hash-slot other-pointer-lowtag)
211 (inst and res (lognot #b11))))
213 ;;;; fdefinition (FDEFN) objects
215 (define-vop (fdefn-fun cell-ref) ; /pfw - alpha
216 (:variant fdefn-fun-slot other-pointer-lowtag))
218 (define-vop (safe-fdefn-fun)
219 (:args (object :scs (descriptor-reg) :to (:result 1)))
220 (:results (value :scs (descriptor-reg any-reg)))
222 (:save-p :compute-only)
224 (loadw value object fdefn-fun-slot other-pointer-lowtag)
225 (inst cmp value nil-value)
226 (let ((err-lab (generate-error-code vop undefined-fun-error object)))
227 (inst jmp :e err-lab))))
229 (define-vop (set-fdefn-fun)
231 (:translate (setf fdefn-fun))
232 (:args (function :scs (descriptor-reg) :target result)
233 (fdefn :scs (descriptor-reg)))
234 (:temporary (:sc unsigned-reg) raw)
235 (:temporary (:sc byte-reg) type)
236 (:results (result :scs (descriptor-reg)))
238 (load-type type function (- fun-pointer-lowtag))
240 (make-ea-for-object-slot function simple-fun-code-offset
242 (inst cmp type simple-fun-header-widetag)
243 (inst jmp :e normal-fn)
244 (inst lea raw (make-fixup "closure_tramp" :foreign))
246 (storew function fdefn fdefn-fun-slot other-pointer-lowtag)
247 (storew raw fdefn fdefn-raw-addr-slot other-pointer-lowtag)
248 (move result function)))
250 (define-vop (fdefn-makunbound)
252 (:translate fdefn-makunbound)
253 (:args (fdefn :scs (descriptor-reg) :target result))
254 (:results (result :scs (descriptor-reg)))
256 (storew nil-value fdefn fdefn-fun-slot other-pointer-lowtag)
257 (storew (make-fixup "undefined_tramp" :foreign)
258 fdefn fdefn-raw-addr-slot other-pointer-lowtag)
259 (move result fdefn)))
261 ;;;; binding and unbinding
263 ;;; BIND -- Establish VAL as a binding for SYMBOL. Save the old value and
264 ;;; the symbol on the binding stack and stuff the new value into the
269 (:args (val :scs (any-reg descriptor-reg))
270 (symbol :scs (descriptor-reg)))
271 (:temporary (:sc descriptor-reg :offset eax-offset) eax)
272 (:temporary (:sc unsigned-reg) tls-index temp bsp)
274 (let ((tls-index-valid (gen-label))
275 (get-tls-index-lock (gen-label))
276 (release-tls-index-lock (gen-label)))
277 (load-binding-stack-pointer bsp)
278 (loadw tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
279 (inst add bsp (* binding-size n-word-bytes))
280 (store-binding-stack-pointer bsp)
281 (inst or tls-index tls-index)
282 (inst jmp :ne tls-index-valid)
285 (emit-label get-tls-index-lock)
289 (inst cmpxchg (make-ea-for-symbol-value *tls-index-lock*) temp)
290 (inst jmp :ne get-tls-index-lock)
291 ;; now with the lock held, see if the symbol's tls index has
292 ;; been set in the meantime
293 (loadw tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
294 (inst or tls-index tls-index)
295 (inst jmp :ne release-tls-index-lock)
296 ;; allocate a new tls-index
297 (load-symbol-value tls-index *free-tls-index*)
298 (inst add tls-index 4) ;XXX surely we can do this more
299 (store-symbol-value tls-index *free-tls-index*) ;succintly
300 (inst sub tls-index 4)
301 (storew tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
302 (emit-label release-tls-index-lock)
303 (store-symbol-value 0 *tls-index-lock*))
305 (emit-label tls-index-valid)
306 (inst fs-segment-prefix)
307 (inst mov temp (make-ea :dword :base tls-index))
308 (storew temp bsp (- binding-value-slot binding-size))
309 (storew symbol bsp (- binding-symbol-slot binding-size))
310 (inst fs-segment-prefix)
311 (inst mov (make-ea :dword :base tls-index) val))))
315 (:args (val :scs (any-reg descriptor-reg))
316 (symbol :scs (descriptor-reg)))
317 (:temporary (:sc unsigned-reg) temp bsp)
319 (load-symbol-value bsp *binding-stack-pointer*)
320 (loadw temp symbol symbol-value-slot other-pointer-lowtag)
321 (inst add bsp (* binding-size n-word-bytes))
322 (store-symbol-value bsp *binding-stack-pointer*)
323 (storew temp bsp (- binding-value-slot binding-size))
324 (storew symbol bsp (- binding-symbol-slot binding-size))
325 (storew val symbol symbol-value-slot other-pointer-lowtag)))
331 (:temporary (:sc unsigned-reg) symbol value bsp tls-index)
333 (load-binding-stack-pointer bsp)
334 (loadw symbol bsp (- binding-symbol-slot binding-size))
335 (loadw value bsp (- binding-value-slot binding-size))
337 (loadw tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
338 (inst fs-segment-prefix)
339 (inst mov (make-ea :dword :base tls-index) value)
341 (storew 0 bsp (- binding-symbol-slot binding-size))
342 (storew 0 bsp (- binding-value-slot binding-size))
343 (inst sub bsp (* binding-size n-word-bytes))
344 (store-binding-stack-pointer bsp)))
348 (:temporary (:sc unsigned-reg) symbol value bsp)
350 (load-symbol-value bsp *binding-stack-pointer*)
351 (loadw symbol bsp (- binding-symbol-slot binding-size))
352 (loadw value bsp (- binding-value-slot binding-size))
353 (storew value symbol symbol-value-slot other-pointer-lowtag)
354 (storew 0 bsp (- binding-symbol-slot binding-size))
355 (storew 0 bsp (- binding-value-slot binding-size))
356 (inst sub bsp (* binding-size n-word-bytes))
357 (store-symbol-value bsp *binding-stack-pointer*)))
360 (define-vop (unbind-to-here)
361 (:args (where :scs (descriptor-reg any-reg)))
362 (:temporary (:sc unsigned-reg) symbol value bsp #!+sb-thread tls-index)
364 (load-binding-stack-pointer bsp)
369 (loadw symbol bsp (- binding-symbol-slot binding-size))
370 (inst or symbol symbol)
372 (loadw value bsp (- binding-value-slot binding-size))
373 #!-sb-thread (storew value symbol symbol-value-slot other-pointer-lowtag)
376 tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
377 #!+sb-thread (inst fs-segment-prefix)
378 #!+sb-thread (inst mov (make-ea :dword :base tls-index) value)
379 (storew 0 bsp (- binding-symbol-slot binding-size))
382 (storew 0 bsp (- binding-value-slot binding-size))
383 (inst sub bsp (* binding-size n-word-bytes))
386 (store-binding-stack-pointer bsp)
392 ;;;; closure indexing
394 (define-full-reffer closure-index-ref *
395 closure-info-offset fun-pointer-lowtag
396 (any-reg descriptor-reg) * %closure-index-ref)
398 (define-full-setter set-funcallable-instance-info *
399 funcallable-instance-info-offset fun-pointer-lowtag
400 (any-reg descriptor-reg) * %set-funcallable-instance-info)
402 (define-full-reffer funcallable-instance-info *
403 funcallable-instance-info-offset fun-pointer-lowtag
404 (descriptor-reg any-reg) * %funcallable-instance-info)
406 (define-vop (closure-ref slot-ref)
407 (:variant closure-info-offset fun-pointer-lowtag))
409 (define-vop (closure-init slot-set)
410 (:variant closure-info-offset fun-pointer-lowtag))
412 ;;;; value cell hackery
414 (define-vop (value-cell-ref cell-ref)
415 (:variant value-cell-value-slot other-pointer-lowtag))
417 (define-vop (value-cell-set cell-set)
418 (:variant value-cell-value-slot other-pointer-lowtag))
420 ;;;; structure hackery
422 (define-vop (instance-length)
424 (:translate %instance-length)
425 (:args (struct :scs (descriptor-reg)))
426 (:results (res :scs (unsigned-reg)))
427 (:result-types positive-fixnum)
429 (loadw res struct 0 instance-pointer-lowtag)
430 (inst shr res n-widetag-bits)))
432 (define-full-reffer instance-index-ref * instance-slots-offset
433 instance-pointer-lowtag (any-reg descriptor-reg) * %instance-ref)
435 (define-full-setter instance-index-set * instance-slots-offset
436 instance-pointer-lowtag (any-reg descriptor-reg) * %instance-set)
439 (defknown %instance-set-conditional (instance index t t) t
442 (define-vop (instance-set-conditional)
443 (:translate %instance-set-conditional)
444 (:args (object :scs (descriptor-reg) :to :eval)
445 (slot :scs (any-reg) :to :result)
446 (old-value :scs (descriptor-reg any-reg) :target eax)
447 (new-value :scs (descriptor-reg any-reg)))
448 (:arg-types instance positive-fixnum * *)
449 (:temporary (:sc descriptor-reg :offset eax-offset
450 :from (:argument 2) :to :result :target result) eax)
451 (:results (result :scs (descriptor-reg any-reg)))
452 ;(:guard (backend-featurep :i486))
457 (inst cmpxchg (make-ea :dword :base object :index slot :scale 1
458 :disp (- (* instance-slots-offset n-word-bytes)
459 instance-pointer-lowtag))
465 ;;;; code object frobbing
467 (define-full-reffer code-header-ref * 0 other-pointer-lowtag
468 (any-reg descriptor-reg) * code-header-ref)
470 (define-full-setter code-header-set * 0 other-pointer-lowtag
471 (any-reg descriptor-reg) * code-header-set)
475 ;;;; raw instance slot accessors
477 (defun make-ea-for-raw-slot (object index instance-length n-words)
479 (any-reg (make-ea :dword
481 :index instance-length
482 :disp (- (* (- instance-slots-offset n-words)
484 instance-pointer-lowtag)))
485 (immediate (make-ea :dword :base object
486 :index instance-length
488 :disp (- (* (- instance-slots-offset n-words)
490 instance-pointer-lowtag
491 (fixnumize (tn-value index)))))))
493 (define-vop (raw-instance-ref/word)
494 (:translate %raw-instance-ref/word)
496 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
497 (:arg-types * tagged-num)
498 (:temporary (:sc unsigned-reg) tmp)
499 (:results (value :scs (unsigned-reg)))
500 (:result-types unsigned-num)
502 (loadw tmp object 0 instance-pointer-lowtag)
503 (inst shr tmp n-widetag-bits)
504 (when (sc-is index any-reg)
506 (inst sub tmp index))
507 (inst mov value (make-ea-for-raw-slot object index tmp 1))))
509 (define-vop (raw-instance-set/word)
510 (:translate %raw-instance-set/word)
512 (:args (object :scs (descriptor-reg))
513 (index :scs (any-reg immediate))
514 (value :scs (unsigned-reg) :target result))
515 (:arg-types * tagged-num unsigned-num)
516 (:temporary (:sc unsigned-reg) tmp)
517 (:results (result :scs (unsigned-reg)))
518 (:result-types unsigned-num)
520 (loadw tmp object 0 instance-pointer-lowtag)
521 (inst shr tmp n-widetag-bits)
522 (when (sc-is index any-reg)
524 (inst sub tmp index))
525 (inst mov (make-ea-for-raw-slot object index tmp 1) value)
526 (move result value)))
528 (define-vop (raw-instance-ref/single)
529 (:translate %raw-instance-ref/single)
531 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
532 (:arg-types * tagged-num)
533 (:temporary (:sc unsigned-reg) tmp)
534 (:results (value :scs (single-reg)))
535 (:result-types single-float)
537 (loadw tmp object 0 instance-pointer-lowtag)
538 (inst shr tmp n-widetag-bits)
539 (when (sc-is index any-reg)
541 (inst sub tmp index))
542 (with-empty-tn@fp-top(value)
543 (inst fld (make-ea-for-raw-slot object index tmp 1)))))
545 (define-vop (raw-instance-set/single)
546 (:translate %raw-instance-set/single)
548 (:args (object :scs (descriptor-reg))
549 (index :scs (any-reg immediate))
550 (value :scs (single-reg) :target result))
551 (:arg-types * tagged-num single-float)
552 (:temporary (:sc unsigned-reg) tmp)
553 (:results (result :scs (single-reg)))
554 (:result-types single-float)
556 (loadw tmp object 0 instance-pointer-lowtag)
557 (inst shr tmp n-widetag-bits)
558 (when (sc-is index any-reg)
560 (inst sub tmp index))
561 (unless (zerop (tn-offset value))
563 (inst fst (make-ea-for-raw-slot object index tmp 1))
565 ((zerop (tn-offset value))
566 (unless (zerop (tn-offset result))
568 ((zerop (tn-offset result))
571 (unless (location= value result)
573 (inst fxch value)))))
575 (define-vop (raw-instance-ref/double)
576 (:translate %raw-instance-ref/double)
578 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
579 (:arg-types * tagged-num)
580 (:temporary (:sc unsigned-reg) tmp)
581 (:results (value :scs (double-reg)))
582 (:result-types double-float)
584 (loadw tmp object 0 instance-pointer-lowtag)
585 (inst shr tmp n-widetag-bits)
586 (when (sc-is index any-reg)
588 (inst sub tmp index))
589 (with-empty-tn@fp-top(value)
590 (inst fldd (make-ea-for-raw-slot object index tmp 2)))))
592 (define-vop (raw-instance-set/double)
593 (:translate %raw-instance-set/double)
595 (:args (object :scs (descriptor-reg))
596 (index :scs (any-reg immediate))
597 (value :scs (double-reg) :target result))
598 (:arg-types * tagged-num double-float)
599 (:temporary (:sc unsigned-reg) tmp)
600 (:results (result :scs (double-reg)))
601 (:result-types double-float)
603 (loadw tmp object 0 instance-pointer-lowtag)
604 (inst shr tmp n-widetag-bits)
605 (when (sc-is index any-reg)
607 (inst sub tmp index))
608 (unless (zerop (tn-offset value))
610 (inst fstd (make-ea-for-raw-slot object index tmp 2))
612 ((zerop (tn-offset value))
613 (unless (zerop (tn-offset result))
615 ((zerop (tn-offset result))
618 (unless (location= value result)
620 (inst fxch value)))))
622 (define-vop (raw-instance-ref/complex-single)
623 (:translate %raw-instance-ref/complex-single)
625 (:args (object :scs (descriptor-reg))
626 (index :scs (any-reg immediate)))
627 (:arg-types * positive-fixnum)
628 (:temporary (:sc unsigned-reg) tmp)
629 (:results (value :scs (complex-single-reg)))
630 (:result-types complex-single-float)
632 (loadw tmp object 0 instance-pointer-lowtag)
633 (inst shr tmp n-widetag-bits)
634 (when (sc-is index any-reg)
636 (inst sub tmp index))
637 (let ((real-tn (complex-single-reg-real-tn value)))
638 (with-empty-tn@fp-top (real-tn)
639 (inst fld (make-ea-for-raw-slot object index tmp 2))))
640 (let ((imag-tn (complex-single-reg-imag-tn value)))
641 (with-empty-tn@fp-top (imag-tn)
642 (inst fld (make-ea-for-raw-slot object index tmp 1))))))
644 (define-vop (raw-instance-set/complex-single)
645 (:translate %raw-instance-set/complex-single)
647 (:args (object :scs (descriptor-reg))
648 (index :scs (any-reg immediate))
649 (value :scs (complex-single-reg) :target result))
650 (:arg-types * positive-fixnum complex-single-float)
651 (:temporary (:sc unsigned-reg) tmp)
652 (:results (result :scs (complex-single-reg)))
653 (:result-types complex-single-float)
655 (loadw tmp object 0 instance-pointer-lowtag)
656 (inst shr tmp n-widetag-bits)
657 (when (sc-is index any-reg)
659 (inst sub tmp index))
660 (let ((value-real (complex-single-reg-real-tn value))
661 (result-real (complex-single-reg-real-tn result)))
662 (cond ((zerop (tn-offset value-real))
664 (inst fst (make-ea-for-raw-slot object index tmp 2))
665 (unless (zerop (tn-offset result-real))
666 ;; Value is in ST0 but not result.
667 (inst fst result-real)))
669 ;; Value is not in ST0.
670 (inst fxch value-real)
671 (inst fst (make-ea-for-raw-slot object index tmp 2))
672 (cond ((zerop (tn-offset result-real))
673 ;; The result is in ST0.
674 (inst fst value-real))
676 ;; Neither value or result are in ST0
677 (unless (location= value-real result-real)
678 (inst fst result-real))
679 (inst fxch value-real))))))
680 (let ((value-imag (complex-single-reg-imag-tn value))
681 (result-imag (complex-single-reg-imag-tn result)))
682 (inst fxch value-imag)
683 (inst fst (make-ea-for-raw-slot object index tmp 1))
684 (unless (location= value-imag result-imag)
685 (inst fst result-imag))
686 (inst fxch value-imag))))
688 (define-vop (raw-instance-ref/complex-double)
689 (:translate %raw-instance-ref/complex-double)
691 (:args (object :scs (descriptor-reg))
692 (index :scs (any-reg immediate)))
693 (:arg-types * positive-fixnum)
694 (:temporary (:sc unsigned-reg) tmp)
695 (:results (value :scs (complex-double-reg)))
696 (:result-types complex-double-float)
698 (loadw tmp object 0 instance-pointer-lowtag)
699 (inst shr tmp n-widetag-bits)
700 (when (sc-is index any-reg)
702 (inst sub tmp index))
703 (let ((real-tn (complex-double-reg-real-tn value)))
704 (with-empty-tn@fp-top (real-tn)
705 (inst fldd (make-ea-for-raw-slot object index tmp 4))))
706 (let ((imag-tn (complex-double-reg-imag-tn value)))
707 (with-empty-tn@fp-top (imag-tn)
708 (inst fldd (make-ea-for-raw-slot object index tmp 2))))))
710 (define-vop (raw-instance-set/complex-double)
711 (:translate %raw-instance-set/complex-double)
713 (:args (object :scs (descriptor-reg))
714 (index :scs (any-reg immediate))
715 (value :scs (complex-double-reg) :target result))
716 (:arg-types * positive-fixnum complex-double-float)
717 (:temporary (:sc unsigned-reg) tmp)
718 (:results (result :scs (complex-double-reg)))
719 (:result-types complex-double-float)
721 (loadw tmp object 0 instance-pointer-lowtag)
722 (inst shr tmp n-widetag-bits)
723 (when (sc-is index any-reg)
725 (inst sub tmp index))
726 (let ((value-real (complex-double-reg-real-tn value))
727 (result-real (complex-double-reg-real-tn result)))
728 (cond ((zerop (tn-offset value-real))
730 (inst fstd (make-ea-for-raw-slot object index tmp 4))
731 (unless (zerop (tn-offset result-real))
732 ;; Value is in ST0 but not result.
733 (inst fstd result-real)))
735 ;; Value is not in ST0.
736 (inst fxch value-real)
737 (inst fstd (make-ea-for-raw-slot object index tmp 4))
738 (cond ((zerop (tn-offset result-real))
739 ;; The result is in ST0.
740 (inst fstd value-real))
742 ;; Neither value or result are in ST0
743 (unless (location= value-real result-real)
744 (inst fstd result-real))
745 (inst fxch value-real))))))
746 (let ((value-imag (complex-double-reg-imag-tn value))
747 (result-imag (complex-double-reg-imag-tn result)))
748 (inst fxch value-imag)
749 (inst fstd (make-ea-for-raw-slot object index tmp 2))
750 (unless (location= value-imag result-imag)
751 (inst fstd result-imag))
752 (inst fxch value-imag))))