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 (storew (encode-value-if-immediate value) object offset lowtag)))
33 (define-vop (compare-and-swap-slot)
34 (:args (object :scs (descriptor-reg) :to :eval)
35 (old :scs (descriptor-reg any-reg) :target eax)
36 (new :scs (descriptor-reg any-reg)))
37 (:temporary (:sc descriptor-reg :offset eax-offset
38 :from (:argument 1) :to :result :target result)
40 (:info name offset lowtag)
42 (:results (result :scs (descriptor-reg any-reg)))
47 (inst cmpxchg (make-ea :dword :base object
48 :disp (- (* offset n-word-bytes) lowtag))
52 ;;;; symbol hacking VOPs
54 (define-vop (%compare-and-swap-symbol-value)
55 (:translate %compare-and-swap-symbol-value)
56 (:args (symbol :scs (descriptor-reg) :to (:result 1))
57 (old :scs (descriptor-reg any-reg) :target eax)
58 (new :scs (descriptor-reg any-reg)))
59 (:temporary (:sc descriptor-reg :offset eax-offset) eax)
61 (:temporary (:sc descriptor-reg) tls)
62 (:results (result :scs (descriptor-reg any-reg)))
66 ;; This code has to pathological cases: NO-TLS-VALUE-MARKER
67 ;; or UNBOUND-MARKER as NEW: in either case we would end up
68 ;; doing possible damage with CMPXCHG -- so don't do that!
69 (let ((unbound (generate-error-code vop unbound-symbol-error symbol))
74 (loadw tls symbol symbol-tls-index-slot other-pointer-lowtag)
75 ;; Thread-local area, no LOCK needed.
76 (inst fs-segment-prefix)
77 (inst cmpxchg (make-ea :dword :base tls) new)
78 (inst cmp eax no-tls-value-marker-widetag)
82 (inst cmpxchg (make-ea :dword :base symbol
83 :disp (- (* symbol-value-slot n-word-bytes)
84 other-pointer-lowtag))
88 (inst cmp result unbound-marker-widetag)
89 (inst jmp :e unbound))))
91 ;;; these next two cf the sparc version, by jrd.
92 ;;; FIXME: Deref this ^ reference.
95 ;;; The compiler likes to be able to directly SET symbols.
98 (:args (symbol :scs (descriptor-reg))
99 (value :scs (descriptor-reg any-reg)))
100 (:temporary (:sc descriptor-reg) tls)
101 ;;(:policy :fast-safe)
103 (let ((global-val (gen-label))
105 (loadw tls symbol symbol-tls-index-slot other-pointer-lowtag)
106 (inst fs-segment-prefix)
107 (inst cmp (make-ea :dword :base tls) no-tls-value-marker-widetag)
108 (inst jmp :z global-val)
109 (inst fs-segment-prefix)
110 (inst mov (make-ea :dword :base tls) value)
112 (emit-label global-val)
113 (storew value symbol symbol-value-slot other-pointer-lowtag)
116 ;; unithreaded it's a lot simpler ...
118 (define-vop (set cell-set)
119 (:variant symbol-value-slot other-pointer-lowtag))
121 ;;; With Symbol-Value, we check that the value isn't the trap object. So
122 ;;; Symbol-Value of NIL is NIL.
124 (define-vop (symbol-value)
125 (:translate symbol-value)
127 (:args (object :scs (descriptor-reg) :to (:result 1)))
128 (:results (value :scs (descriptor-reg any-reg)))
130 (:save-p :compute-only)
132 (let* ((check-unbound-label (gen-label))
133 (err-lab (generate-error-code vop unbound-symbol-error object))
134 (ret-lab (gen-label)))
135 (loadw value object symbol-tls-index-slot other-pointer-lowtag)
136 (inst fs-segment-prefix)
137 (inst mov value (make-ea :dword :base value))
138 (inst cmp value no-tls-value-marker-widetag)
139 (inst jmp :ne check-unbound-label)
140 (loadw value object symbol-value-slot other-pointer-lowtag)
141 (emit-label check-unbound-label)
142 (inst cmp value unbound-marker-widetag)
143 (inst jmp :e err-lab)
144 (emit-label ret-lab))))
147 (define-vop (fast-symbol-value symbol-value)
148 ;; KLUDGE: not really fast, in fact, because we're going to have to
149 ;; do a full lookup of the thread-local area anyway. But half of
150 ;; the meaning of FAST-SYMBOL-VALUE is "do not signal an error if
151 ;; unbound", which is used in the implementation of COPY-SYMBOL. --
154 (:translate symbol-value)
156 (let ((ret-lab (gen-label)))
157 (loadw value object symbol-tls-index-slot other-pointer-lowtag)
158 (inst fs-segment-prefix)
159 (inst mov value (make-ea :dword :base value))
160 (inst cmp value no-tls-value-marker-widetag)
161 (inst jmp :ne ret-lab)
162 (loadw value object symbol-value-slot other-pointer-lowtag)
163 (emit-label ret-lab))))
166 (define-vop (symbol-value)
167 (:translate symbol-value)
169 (:args (object :scs (descriptor-reg) :to (:result 1)))
170 (:results (value :scs (descriptor-reg any-reg)))
172 (:save-p :compute-only)
174 (let ((err-lab (generate-error-code vop unbound-symbol-error object)))
175 (loadw value object symbol-value-slot other-pointer-lowtag)
176 (inst cmp value unbound-marker-widetag)
177 (inst jmp :e err-lab))))
180 (define-vop (fast-symbol-value cell-ref)
181 (:variant symbol-value-slot other-pointer-lowtag)
183 (:translate symbol-value))
185 (defknown locked-symbol-global-value-add (symbol fixnum) fixnum ())
187 (define-vop (locked-symbol-global-value-add)
188 (:args (object :scs (descriptor-reg) :to :result)
189 (value :scs (any-reg) :target result))
190 (:arg-types * tagged-num)
191 (:results (result :scs (any-reg) :from (:argument 1)))
193 (:translate locked-symbol-global-value-add)
194 (:result-types tagged-num)
199 (inst add (make-ea-for-object-slot object symbol-value-slot
200 other-pointer-lowtag)
207 (:args (object :scs (descriptor-reg)))
210 (:temporary (:sc descriptor-reg #+nil(:from (:argument 0))) value)
212 (let ((check-unbound-label (gen-label)))
213 (loadw value object symbol-tls-index-slot other-pointer-lowtag)
214 (inst fs-segment-prefix)
215 (inst mov value (make-ea :dword :base value))
216 (inst cmp value no-tls-value-marker-widetag)
217 (inst jmp :ne check-unbound-label)
218 (loadw value object symbol-value-slot other-pointer-lowtag)
219 (emit-label check-unbound-label)
220 (inst cmp value unbound-marker-widetag)
221 (inst jmp (if not-p :e :ne) target))))
227 (:args (object :scs (descriptor-reg)))
231 (inst cmp (make-ea-for-object-slot object symbol-value-slot
232 other-pointer-lowtag)
233 unbound-marker-widetag)
234 (inst jmp (if not-p :e :ne) target)))
237 (define-vop (symbol-hash)
239 (:translate symbol-hash)
240 (:args (symbol :scs (descriptor-reg)))
241 (:results (res :scs (any-reg)))
242 (:result-types positive-fixnum)
244 ;; The symbol-hash slot of NIL holds NIL because it is also the
245 ;; cdr slot, so we have to strip off the two low bits to make sure
246 ;; it is a fixnum. The lowtag selection magic that is required to
247 ;; ensure this is explained in the comment in objdef.lisp
248 (loadw res symbol symbol-hash-slot other-pointer-lowtag)
249 (inst and res (lognot #b11))))
251 ;;;; fdefinition (FDEFN) objects
253 (define-vop (fdefn-fun cell-ref) ; /pfw - alpha
254 (:variant fdefn-fun-slot other-pointer-lowtag))
256 (define-vop (safe-fdefn-fun)
257 (:args (object :scs (descriptor-reg) :to (:result 1)))
258 (:results (value :scs (descriptor-reg any-reg)))
260 (:save-p :compute-only)
262 (loadw value object fdefn-fun-slot other-pointer-lowtag)
263 (inst cmp value nil-value)
264 (let ((err-lab (generate-error-code vop undefined-fun-error object)))
265 (inst jmp :e err-lab))))
267 (define-vop (set-fdefn-fun)
269 (:translate (setf fdefn-fun))
270 (:args (function :scs (descriptor-reg) :target result)
271 (fdefn :scs (descriptor-reg)))
272 (:temporary (:sc unsigned-reg) raw)
273 (:temporary (:sc byte-reg) type)
274 (:results (result :scs (descriptor-reg)))
276 (load-type type function (- fun-pointer-lowtag))
278 (make-ea-for-object-slot function simple-fun-code-offset
280 (inst cmp type simple-fun-header-widetag)
281 (inst jmp :e normal-fn)
282 (inst lea raw (make-fixup "closure_tramp" :foreign))
284 (storew function fdefn fdefn-fun-slot other-pointer-lowtag)
285 (storew raw fdefn fdefn-raw-addr-slot other-pointer-lowtag)
286 (move result function)))
288 (define-vop (fdefn-makunbound)
290 (:translate fdefn-makunbound)
291 (:args (fdefn :scs (descriptor-reg) :target result))
292 (:results (result :scs (descriptor-reg)))
294 (storew nil-value fdefn fdefn-fun-slot other-pointer-lowtag)
295 (storew (make-fixup "undefined_tramp" :foreign)
296 fdefn fdefn-raw-addr-slot other-pointer-lowtag)
297 (move result fdefn)))
299 ;;;; binding and unbinding
301 ;;; BIND -- Establish VAL as a binding for SYMBOL. Save the old value and
302 ;;; the symbol on the binding stack and stuff the new value into the
305 ;;; FIXME: Split into DYNBIND and BIND: DYNBIND needs to ensure
306 ;;; TLS-INDEX, whereas BIND should assume it is already in place. Make
307 ;;; LET &co compile into BIND, and PROGV into DYNBIND, plus ensure
308 ;;; TLS-INDEX at compile-time, and make loader and dumper preserve
309 ;;; the existence of a TLS-INDEX.
312 (:args (val :scs (any-reg descriptor-reg))
313 (symbol :scs (descriptor-reg)))
314 (:temporary (:sc unsigned-reg) tls-index bsp)
316 (let ((tls-index-valid (gen-label)))
317 (load-binding-stack-pointer bsp)
318 (loadw tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
319 (inst add bsp (* binding-size n-word-bytes))
320 (store-binding-stack-pointer bsp)
321 (inst or tls-index tls-index)
322 (inst jmp :ne tls-index-valid)
323 (inst mov tls-index symbol)
324 (inst call (make-fixup
325 (ecase (tn-offset tls-index)
326 (#.eax-offset 'alloc-tls-index-in-eax)
327 (#.ebx-offset 'alloc-tls-index-in-ebx)
328 (#.ecx-offset 'alloc-tls-index-in-ecx)
329 (#.edx-offset 'alloc-tls-index-in-edx)
330 (#.edi-offset 'alloc-tls-index-in-edi)
331 (#.esi-offset 'alloc-tls-index-in-esi))
333 (emit-label tls-index-valid)
334 (inst fs-segment-prefix)
335 (inst push (make-ea :dword :base tls-index))
336 (popw bsp (- binding-value-slot binding-size))
337 (storew symbol bsp (- binding-symbol-slot binding-size))
338 (inst fs-segment-prefix)
339 (inst mov (make-ea :dword :base tls-index) val))))
343 (:args (val :scs (any-reg descriptor-reg))
344 (symbol :scs (descriptor-reg)))
345 (:temporary (:sc unsigned-reg) temp bsp)
347 (load-symbol-value bsp *binding-stack-pointer*)
348 (loadw temp symbol symbol-value-slot other-pointer-lowtag)
349 (inst add bsp (* binding-size n-word-bytes))
350 (store-symbol-value bsp *binding-stack-pointer*)
351 (storew temp bsp (- binding-value-slot binding-size))
352 (storew symbol bsp (- binding-symbol-slot binding-size))
353 (storew val symbol symbol-value-slot other-pointer-lowtag)))
357 (:temporary (:sc unsigned-reg) temp bsp tls-index)
359 (load-binding-stack-pointer bsp)
360 ;; Load SYMBOL from stack, and get the TLS-INDEX.
361 (loadw temp bsp (- binding-symbol-slot binding-size))
362 (loadw tls-index temp symbol-tls-index-slot other-pointer-lowtag)
363 ;; Load VALUE from stack, then restore it to the TLS area.
364 (loadw temp bsp (- binding-value-slot binding-size))
365 (inst fs-segment-prefix)
366 (inst mov (make-ea :dword :base tls-index) temp)
367 ;; Zero out the stack.
368 (storew 0 bsp (- binding-symbol-slot binding-size))
369 (storew 0 bsp (- binding-value-slot binding-size))
370 (inst sub bsp (* binding-size n-word-bytes))
371 (store-binding-stack-pointer bsp)))
375 (:temporary (:sc unsigned-reg) symbol value bsp)
377 (load-symbol-value bsp *binding-stack-pointer*)
378 (loadw symbol bsp (- binding-symbol-slot binding-size))
379 (loadw value bsp (- binding-value-slot binding-size))
380 (storew value symbol symbol-value-slot other-pointer-lowtag)
381 (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))
384 (store-symbol-value bsp *binding-stack-pointer*)))
387 (define-vop (unbind-to-here)
388 (:args (where :scs (descriptor-reg any-reg)))
389 (:temporary (:sc unsigned-reg) symbol value bsp #!+sb-thread tls-index)
391 (load-binding-stack-pointer bsp)
396 (loadw symbol bsp (- binding-symbol-slot binding-size))
397 (inst or symbol symbol)
399 ;; Bind stack debug sentinels have the unbound marker in the symbol slot
400 (inst cmp symbol unbound-marker-widetag)
402 (loadw value bsp (- binding-value-slot binding-size))
403 #!-sb-thread (storew value symbol symbol-value-slot other-pointer-lowtag)
406 tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
407 #!+sb-thread (inst fs-segment-prefix)
408 #!+sb-thread (inst mov (make-ea :dword :base tls-index) value)
409 (storew 0 bsp (- binding-symbol-slot binding-size))
412 (storew 0 bsp (- binding-value-slot binding-size))
413 (inst sub bsp (* binding-size n-word-bytes))
416 (store-binding-stack-pointer bsp)
420 (define-vop (bind-sentinel)
421 (:temporary (:sc unsigned-reg) bsp)
423 (load-binding-stack-pointer bsp)
424 (inst add bsp (* binding-size n-word-bytes))
425 (storew unbound-marker-widetag bsp (- binding-symbol-slot binding-size))
426 (storew ebp-tn bsp (- binding-value-slot binding-size))
427 (store-binding-stack-pointer bsp)))
429 (define-vop (unbind-sentinel)
430 (:temporary (:sc unsigned-reg) bsp)
432 (load-binding-stack-pointer bsp)
433 (storew 0 bsp (- binding-value-slot binding-size))
434 (storew 0 bsp (- binding-symbol-slot binding-size))
435 (inst sub bsp (* binding-size n-word-bytes))
436 (store-binding-stack-pointer bsp)))
440 ;;;; closure indexing
442 (define-full-reffer closure-index-ref *
443 closure-info-offset fun-pointer-lowtag
444 (any-reg descriptor-reg) * %closure-index-ref)
446 (define-full-setter set-funcallable-instance-info *
447 funcallable-instance-info-offset fun-pointer-lowtag
448 (any-reg descriptor-reg) * %set-funcallable-instance-info)
450 (define-full-reffer funcallable-instance-info *
451 funcallable-instance-info-offset fun-pointer-lowtag
452 (descriptor-reg any-reg) * %funcallable-instance-info)
454 (define-vop (closure-ref slot-ref)
455 (:variant closure-info-offset fun-pointer-lowtag))
457 (define-vop (closure-init slot-set)
458 (:variant closure-info-offset fun-pointer-lowtag))
460 ;;;; value cell hackery
462 (define-vop (value-cell-ref cell-ref)
463 (:variant value-cell-value-slot other-pointer-lowtag))
465 (define-vop (value-cell-set cell-set)
466 (:variant value-cell-value-slot other-pointer-lowtag))
468 ;;;; structure hackery
470 (define-vop (instance-length)
472 (:translate %instance-length)
473 (:args (struct :scs (descriptor-reg)))
474 (:results (res :scs (unsigned-reg)))
475 (:result-types positive-fixnum)
477 (loadw res struct 0 instance-pointer-lowtag)
478 (inst shr res n-widetag-bits)))
480 (define-full-reffer instance-index-ref *
481 instance-slots-offset instance-pointer-lowtag
482 (any-reg descriptor-reg) *
485 (define-full-setter instance-index-set *
486 instance-slots-offset instance-pointer-lowtag
487 (any-reg descriptor-reg) *
490 (define-full-compare-and-swap %compare-and-swap-instance-ref instance
491 instance-slots-offset instance-pointer-lowtag
492 (any-reg descriptor-reg) *
493 %compare-and-swap-instance-ref)
495 ;;;; code object frobbing
497 (define-full-reffer code-header-ref * 0 other-pointer-lowtag
498 (any-reg descriptor-reg) * code-header-ref)
500 (define-full-setter code-header-set * 0 other-pointer-lowtag
501 (any-reg descriptor-reg) * code-header-set)
503 ;;;; raw instance slot accessors
505 (defun make-ea-for-raw-slot (object index instance-length n-words)
507 (any-reg (make-ea :dword
509 :index instance-length
510 :disp (- (* (- instance-slots-offset n-words)
512 instance-pointer-lowtag)))
513 (immediate (make-ea :dword :base object
514 :index instance-length
516 :disp (- (* (- instance-slots-offset n-words)
518 instance-pointer-lowtag
519 (fixnumize (tn-value index)))))))
521 (define-vop (raw-instance-ref/word)
522 (:translate %raw-instance-ref/word)
524 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
525 (:arg-types * tagged-num)
526 (:temporary (:sc unsigned-reg) tmp)
527 (:results (value :scs (unsigned-reg)))
528 (:result-types unsigned-num)
530 (loadw tmp object 0 instance-pointer-lowtag)
531 (inst shr tmp n-widetag-bits)
532 (when (sc-is index any-reg)
534 (inst sub tmp index))
535 (inst mov value (make-ea-for-raw-slot object index tmp 1))))
537 (define-vop (raw-instance-set/word)
538 (:translate %raw-instance-set/word)
540 (:args (object :scs (descriptor-reg))
541 (index :scs (any-reg immediate))
542 (value :scs (unsigned-reg) :target result))
543 (:arg-types * tagged-num unsigned-num)
544 (:temporary (:sc unsigned-reg) tmp)
545 (:results (result :scs (unsigned-reg)))
546 (:result-types unsigned-num)
548 (loadw tmp object 0 instance-pointer-lowtag)
549 (inst shr tmp n-widetag-bits)
550 (when (sc-is index any-reg)
552 (inst sub tmp index))
553 (inst mov (make-ea-for-raw-slot object index tmp 1) value)
554 (move result value)))
556 (define-vop (raw-instance-ref/single)
557 (:translate %raw-instance-ref/single)
559 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
560 (:arg-types * tagged-num)
561 (:temporary (:sc unsigned-reg) tmp)
562 (:results (value :scs (single-reg)))
563 (:result-types single-float)
565 (loadw tmp object 0 instance-pointer-lowtag)
566 (inst shr tmp n-widetag-bits)
567 (when (sc-is index any-reg)
569 (inst sub tmp index))
570 (with-empty-tn@fp-top(value)
571 (inst fld (make-ea-for-raw-slot object index tmp 1)))))
573 (define-vop (raw-instance-set/single)
574 (:translate %raw-instance-set/single)
576 (:args (object :scs (descriptor-reg))
577 (index :scs (any-reg immediate))
578 (value :scs (single-reg) :target result))
579 (:arg-types * tagged-num single-float)
580 (:temporary (:sc unsigned-reg) tmp)
581 (:results (result :scs (single-reg)))
582 (:result-types single-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 (unless (zerop (tn-offset value))
591 (inst fst (make-ea-for-raw-slot object index tmp 1))
593 ((zerop (tn-offset value))
594 (unless (zerop (tn-offset result))
596 ((zerop (tn-offset result))
599 (unless (location= value result)
601 (inst fxch value)))))
603 (define-vop (raw-instance-ref/double)
604 (:translate %raw-instance-ref/double)
606 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
607 (:arg-types * tagged-num)
608 (:temporary (:sc unsigned-reg) tmp)
609 (:results (value :scs (double-reg)))
610 (:result-types double-float)
612 (loadw tmp object 0 instance-pointer-lowtag)
613 (inst shr tmp n-widetag-bits)
614 (when (sc-is index any-reg)
616 (inst sub tmp index))
617 (with-empty-tn@fp-top(value)
618 (inst fldd (make-ea-for-raw-slot object index tmp 2)))))
620 (define-vop (raw-instance-set/double)
621 (:translate %raw-instance-set/double)
623 (:args (object :scs (descriptor-reg))
624 (index :scs (any-reg immediate))
625 (value :scs (double-reg) :target result))
626 (:arg-types * tagged-num double-float)
627 (:temporary (:sc unsigned-reg) tmp)
628 (:results (result :scs (double-reg)))
629 (:result-types double-float)
631 (loadw tmp object 0 instance-pointer-lowtag)
632 (inst shr tmp n-widetag-bits)
633 (when (sc-is index any-reg)
635 (inst sub tmp index))
636 (unless (zerop (tn-offset value))
638 (inst fstd (make-ea-for-raw-slot object index tmp 2))
640 ((zerop (tn-offset value))
641 (unless (zerop (tn-offset result))
643 ((zerop (tn-offset result))
646 (unless (location= value result)
648 (inst fxch value)))))
650 (define-vop (raw-instance-ref/complex-single)
651 (:translate %raw-instance-ref/complex-single)
653 (:args (object :scs (descriptor-reg))
654 (index :scs (any-reg immediate)))
655 (:arg-types * positive-fixnum)
656 (:temporary (:sc unsigned-reg) tmp)
657 (:results (value :scs (complex-single-reg)))
658 (:result-types complex-single-float)
660 (loadw tmp object 0 instance-pointer-lowtag)
661 (inst shr tmp n-widetag-bits)
662 (when (sc-is index any-reg)
664 (inst sub tmp index))
665 (let ((real-tn (complex-single-reg-real-tn value)))
666 (with-empty-tn@fp-top (real-tn)
667 (inst fld (make-ea-for-raw-slot object index tmp 2))))
668 (let ((imag-tn (complex-single-reg-imag-tn value)))
669 (with-empty-tn@fp-top (imag-tn)
670 (inst fld (make-ea-for-raw-slot object index tmp 1))))))
672 (define-vop (raw-instance-set/complex-single)
673 (:translate %raw-instance-set/complex-single)
675 (:args (object :scs (descriptor-reg))
676 (index :scs (any-reg immediate))
677 (value :scs (complex-single-reg) :target result))
678 (:arg-types * positive-fixnum complex-single-float)
679 (:temporary (:sc unsigned-reg) tmp)
680 (:results (result :scs (complex-single-reg)))
681 (:result-types complex-single-float)
683 (loadw tmp object 0 instance-pointer-lowtag)
684 (inst shr tmp n-widetag-bits)
685 (when (sc-is index any-reg)
687 (inst sub tmp index))
688 (let ((value-real (complex-single-reg-real-tn value))
689 (result-real (complex-single-reg-real-tn result)))
690 (cond ((zerop (tn-offset value-real))
692 (inst fst (make-ea-for-raw-slot object index tmp 2))
693 (unless (zerop (tn-offset result-real))
694 ;; Value is in ST0 but not result.
695 (inst fst result-real)))
697 ;; Value is not in ST0.
698 (inst fxch value-real)
699 (inst fst (make-ea-for-raw-slot object index tmp 2))
700 (cond ((zerop (tn-offset result-real))
701 ;; The result is in ST0.
702 (inst fst value-real))
704 ;; Neither value or result are in ST0
705 (unless (location= value-real result-real)
706 (inst fst result-real))
707 (inst fxch value-real))))))
708 (let ((value-imag (complex-single-reg-imag-tn value))
709 (result-imag (complex-single-reg-imag-tn result)))
710 (inst fxch value-imag)
711 (inst fst (make-ea-for-raw-slot object index tmp 1))
712 (unless (location= value-imag result-imag)
713 (inst fst result-imag))
714 (inst fxch value-imag))))
716 (define-vop (raw-instance-ref/complex-double)
717 (:translate %raw-instance-ref/complex-double)
719 (:args (object :scs (descriptor-reg))
720 (index :scs (any-reg immediate)))
721 (:arg-types * positive-fixnum)
722 (:temporary (:sc unsigned-reg) tmp)
723 (:results (value :scs (complex-double-reg)))
724 (:result-types complex-double-float)
726 (loadw tmp object 0 instance-pointer-lowtag)
727 (inst shr tmp n-widetag-bits)
728 (when (sc-is index any-reg)
730 (inst sub tmp index))
731 (let ((real-tn (complex-double-reg-real-tn value)))
732 (with-empty-tn@fp-top (real-tn)
733 (inst fldd (make-ea-for-raw-slot object index tmp 4))))
734 (let ((imag-tn (complex-double-reg-imag-tn value)))
735 (with-empty-tn@fp-top (imag-tn)
736 (inst fldd (make-ea-for-raw-slot object index tmp 2))))))
738 (define-vop (raw-instance-set/complex-double)
739 (:translate %raw-instance-set/complex-double)
741 (:args (object :scs (descriptor-reg))
742 (index :scs (any-reg immediate))
743 (value :scs (complex-double-reg) :target result))
744 (:arg-types * positive-fixnum complex-double-float)
745 (:temporary (:sc unsigned-reg) tmp)
746 (:results (result :scs (complex-double-reg)))
747 (:result-types complex-double-float)
749 (loadw tmp object 0 instance-pointer-lowtag)
750 (inst shr tmp n-widetag-bits)
751 (when (sc-is index any-reg)
753 (inst sub tmp index))
754 (let ((value-real (complex-double-reg-real-tn value))
755 (result-real (complex-double-reg-real-tn result)))
756 (cond ((zerop (tn-offset value-real))
758 (inst fstd (make-ea-for-raw-slot object index tmp 4))
759 (unless (zerop (tn-offset result-real))
760 ;; Value is in ST0 but not result.
761 (inst fstd result-real)))
763 ;; Value is not in ST0.
764 (inst fxch value-real)
765 (inst fstd (make-ea-for-raw-slot object index tmp 4))
766 (cond ((zerop (tn-offset result-real))
767 ;; The result is in ST0.
768 (inst fstd value-real))
770 ;; Neither value or result are in ST0
771 (unless (location= value-real result-real)
772 (inst fstd result-real))
773 (inst fxch value-real))))))
774 (let ((value-imag (complex-double-reg-imag-tn value))
775 (result-imag (complex-double-reg-imag-tn result)))
776 (inst fxch value-imag)
777 (inst fstd (make-ea-for-raw-slot object index tmp 2))
778 (unless (location= value-imag result-imag)
779 (inst fstd result-imag))
780 (inst fxch value-imag))))