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)
506 (if (integerp instance-length)
507 ;; For RAW-INSTANCE-INIT/* VOPs, which know the exact instance length
511 :disp (- (* (- instance-length instance-slots-offset index (1- n-words))
513 instance-pointer-lowtag))
514 (flet ((make-ea-using-value (value)
515 (make-ea :dword :base object
516 :index instance-length
518 :disp (- (* (- instance-slots-offset n-words)
520 instance-pointer-lowtag
521 (* value n-word-bytes)))))
522 (if (typep index 'tn)
524 (any-reg (make-ea :dword
526 :index instance-length
527 :disp (- (* (- instance-slots-offset n-words)
529 instance-pointer-lowtag)))
530 (immediate (make-ea-using-value (tn-value index))))
531 (make-ea-using-value index)))))
533 (define-vop (raw-instance-ref/word)
534 (:translate %raw-instance-ref/word)
536 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
537 (:arg-types * tagged-num)
538 (:temporary (:sc unsigned-reg) tmp)
539 (:results (value :scs (unsigned-reg)))
540 (:result-types unsigned-num)
542 (loadw tmp object 0 instance-pointer-lowtag)
543 (inst shr tmp n-widetag-bits)
544 (when (sc-is index any-reg)
546 (inst sub tmp index))
547 (inst mov value (make-ea-for-raw-slot object index tmp 1))))
549 (define-vop (raw-instance-set/word)
550 (:translate %raw-instance-set/word)
552 (:args (object :scs (descriptor-reg))
553 (index :scs (any-reg immediate))
554 (value :scs (unsigned-reg) :target result))
555 (:arg-types * tagged-num unsigned-num)
556 (:temporary (:sc unsigned-reg) tmp)
557 (:results (result :scs (unsigned-reg)))
558 (:result-types unsigned-num)
560 (loadw tmp object 0 instance-pointer-lowtag)
561 (inst shr tmp n-widetag-bits)
562 (when (sc-is index any-reg)
564 (inst sub tmp index))
565 (inst mov (make-ea-for-raw-slot object index tmp 1) value)
566 (move result value)))
568 (define-vop (raw-instance-init/word)
569 (:args (object :scs (descriptor-reg))
570 (value :scs (unsigned-reg)))
571 (:arg-types * unsigned-num)
572 (:info instance-length index)
574 (inst mov (make-ea-for-raw-slot object index instance-length 1) value)))
576 (define-vop (raw-instance-atomic-incf/word)
577 (:translate %raw-instance-atomic-incf/word)
579 (:args (object :scs (descriptor-reg))
580 (index :scs (any-reg immediate))
581 (diff :scs (signed-reg) :target result))
582 (:arg-types * tagged-num signed-num)
583 (:temporary (:sc unsigned-reg) tmp)
584 (:results (result :scs (unsigned-reg)))
585 (:result-types unsigned-num)
587 (loadw tmp object 0 instance-pointer-lowtag)
588 (inst shr tmp n-widetag-bits)
589 (when (sc-is index any-reg)
591 (inst sub tmp index))
594 (inst xadd (make-ea-for-raw-slot object index tmp 1) diff)
597 (define-vop (raw-instance-ref/single)
598 (:translate %raw-instance-ref/single)
600 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
601 (:arg-types * tagged-num)
602 (:temporary (:sc unsigned-reg) tmp)
603 (:results (value :scs (single-reg)))
604 (:result-types single-float)
606 (loadw tmp object 0 instance-pointer-lowtag)
607 (inst shr tmp n-widetag-bits)
608 (when (sc-is index any-reg)
610 (inst sub tmp index))
611 (with-empty-tn@fp-top(value)
612 (inst fld (make-ea-for-raw-slot object index tmp 1)))))
614 (define-vop (raw-instance-set/single)
615 (:translate %raw-instance-set/single)
617 (:args (object :scs (descriptor-reg))
618 (index :scs (any-reg immediate))
619 (value :scs (single-reg) :target result))
620 (:arg-types * tagged-num single-float)
621 (:temporary (:sc unsigned-reg) tmp)
622 (:results (result :scs (single-reg)))
623 (:result-types single-float)
625 (loadw tmp object 0 instance-pointer-lowtag)
626 (inst shr tmp n-widetag-bits)
627 (when (sc-is index any-reg)
629 (inst sub tmp index))
630 (unless (zerop (tn-offset value))
632 (inst fst (make-ea-for-raw-slot object index tmp 1))
634 ((zerop (tn-offset value))
635 (unless (zerop (tn-offset result))
637 ((zerop (tn-offset result))
640 (unless (location= value result)
642 (inst fxch value)))))
644 (define-vop (raw-instance-init/single)
645 (:args (object :scs (descriptor-reg))
646 (value :scs (single-reg)))
647 (:arg-types * single-float)
648 (:info instance-length index)
650 (with-tn@fp-top (value)
651 (inst fst (make-ea-for-raw-slot object index instance-length 1)))))
653 (define-vop (raw-instance-ref/double)
654 (:translate %raw-instance-ref/double)
656 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
657 (:arg-types * tagged-num)
658 (:temporary (:sc unsigned-reg) tmp)
659 (:results (value :scs (double-reg)))
660 (:result-types double-float)
662 (loadw tmp object 0 instance-pointer-lowtag)
663 (inst shr tmp n-widetag-bits)
664 (when (sc-is index any-reg)
666 (inst sub tmp index))
667 (with-empty-tn@fp-top(value)
668 (inst fldd (make-ea-for-raw-slot object index tmp 2)))))
670 (define-vop (raw-instance-set/double)
671 (:translate %raw-instance-set/double)
673 (:args (object :scs (descriptor-reg))
674 (index :scs (any-reg immediate))
675 (value :scs (double-reg) :target result))
676 (:arg-types * tagged-num double-float)
677 (:temporary (:sc unsigned-reg) tmp)
678 (:results (result :scs (double-reg)))
679 (:result-types double-float)
681 (loadw tmp object 0 instance-pointer-lowtag)
682 (inst shr tmp n-widetag-bits)
683 (when (sc-is index any-reg)
685 (inst sub tmp index))
686 (unless (zerop (tn-offset value))
688 (inst fstd (make-ea-for-raw-slot object index tmp 2))
690 ((zerop (tn-offset value))
691 (unless (zerop (tn-offset result))
693 ((zerop (tn-offset result))
696 (unless (location= value result)
698 (inst fxch value)))))
700 (define-vop (raw-instance-init/double)
701 (:args (object :scs (descriptor-reg))
702 (value :scs (double-reg)))
703 (:arg-types * double-float)
704 (:info instance-length index)
706 (with-tn@fp-top (value)
707 (inst fstd (make-ea-for-raw-slot object index instance-length 2)))))
709 (define-vop (raw-instance-ref/complex-single)
710 (:translate %raw-instance-ref/complex-single)
712 (:args (object :scs (descriptor-reg))
713 (index :scs (any-reg immediate)))
714 (:arg-types * positive-fixnum)
715 (:temporary (:sc unsigned-reg) tmp)
716 (:results (value :scs (complex-single-reg)))
717 (:result-types complex-single-float)
719 (loadw tmp object 0 instance-pointer-lowtag)
720 (inst shr tmp n-widetag-bits)
721 (when (sc-is index any-reg)
723 (inst sub tmp index))
724 (let ((real-tn (complex-single-reg-real-tn value)))
725 (with-empty-tn@fp-top (real-tn)
726 (inst fld (make-ea-for-raw-slot object index tmp 2))))
727 (let ((imag-tn (complex-single-reg-imag-tn value)))
728 (with-empty-tn@fp-top (imag-tn)
729 (inst fld (make-ea-for-raw-slot object index tmp 1))))))
731 (define-vop (raw-instance-set/complex-single)
732 (:translate %raw-instance-set/complex-single)
734 (:args (object :scs (descriptor-reg))
735 (index :scs (any-reg immediate))
736 (value :scs (complex-single-reg) :target result))
737 (:arg-types * positive-fixnum complex-single-float)
738 (:temporary (:sc unsigned-reg) tmp)
739 (:results (result :scs (complex-single-reg)))
740 (:result-types complex-single-float)
742 (loadw tmp object 0 instance-pointer-lowtag)
743 (inst shr tmp n-widetag-bits)
744 (when (sc-is index any-reg)
746 (inst sub tmp index))
747 (let ((value-real (complex-single-reg-real-tn value))
748 (result-real (complex-single-reg-real-tn result)))
749 (cond ((zerop (tn-offset value-real))
751 (inst fst (make-ea-for-raw-slot object index tmp 2))
752 (unless (zerop (tn-offset result-real))
753 ;; Value is in ST0 but not result.
754 (inst fst result-real)))
756 ;; Value is not in ST0.
757 (inst fxch value-real)
758 (inst fst (make-ea-for-raw-slot object index tmp 2))
759 (cond ((zerop (tn-offset result-real))
760 ;; The result is in ST0.
761 (inst fst value-real))
763 ;; Neither value or result are in ST0
764 (unless (location= value-real result-real)
765 (inst fst result-real))
766 (inst fxch value-real))))))
767 (let ((value-imag (complex-single-reg-imag-tn value))
768 (result-imag (complex-single-reg-imag-tn result)))
769 (inst fxch value-imag)
770 (inst fst (make-ea-for-raw-slot object index tmp 1))
771 (unless (location= value-imag result-imag)
772 (inst fst result-imag))
773 (inst fxch value-imag))))
775 (define-vop (raw-instance-init/complex-single)
776 (:args (object :scs (descriptor-reg))
777 (value :scs (complex-single-reg)))
778 (:arg-types * complex-single-float)
779 (:info instance-length index)
781 (let ((value-real (complex-single-reg-real-tn value)))
782 (with-tn@fp-top (value-real)
783 (inst fst (make-ea-for-raw-slot object index instance-length 2))))
784 (let ((value-imag (complex-single-reg-imag-tn value)))
785 (with-tn@fp-top (value-imag)
786 (inst fst (make-ea-for-raw-slot object index instance-length 1))))))
788 (define-vop (raw-instance-ref/complex-double)
789 (:translate %raw-instance-ref/complex-double)
791 (:args (object :scs (descriptor-reg))
792 (index :scs (any-reg immediate)))
793 (:arg-types * positive-fixnum)
794 (:temporary (:sc unsigned-reg) tmp)
795 (:results (value :scs (complex-double-reg)))
796 (:result-types complex-double-float)
798 (loadw tmp object 0 instance-pointer-lowtag)
799 (inst shr tmp n-widetag-bits)
800 (when (sc-is index any-reg)
802 (inst sub tmp index))
803 (let ((real-tn (complex-double-reg-real-tn value)))
804 (with-empty-tn@fp-top (real-tn)
805 (inst fldd (make-ea-for-raw-slot object index tmp 4))))
806 (let ((imag-tn (complex-double-reg-imag-tn value)))
807 (with-empty-tn@fp-top (imag-tn)
808 (inst fldd (make-ea-for-raw-slot object index tmp 2))))))
810 (define-vop (raw-instance-set/complex-double)
811 (:translate %raw-instance-set/complex-double)
813 (:args (object :scs (descriptor-reg))
814 (index :scs (any-reg immediate))
815 (value :scs (complex-double-reg) :target result))
816 (:arg-types * positive-fixnum complex-double-float)
817 (:temporary (:sc unsigned-reg) tmp)
818 (:results (result :scs (complex-double-reg)))
819 (:result-types complex-double-float)
821 (loadw tmp object 0 instance-pointer-lowtag)
822 (inst shr tmp n-widetag-bits)
823 (when (sc-is index any-reg)
825 (inst sub tmp index))
826 (let ((value-real (complex-double-reg-real-tn value))
827 (result-real (complex-double-reg-real-tn result)))
828 (cond ((zerop (tn-offset value-real))
830 (inst fstd (make-ea-for-raw-slot object index tmp 4))
831 (unless (zerop (tn-offset result-real))
832 ;; Value is in ST0 but not result.
833 (inst fstd result-real)))
835 ;; Value is not in ST0.
836 (inst fxch value-real)
837 (inst fstd (make-ea-for-raw-slot object index tmp 4))
838 (cond ((zerop (tn-offset result-real))
839 ;; The result is in ST0.
840 (inst fstd value-real))
842 ;; Neither value or result are in ST0
843 (unless (location= value-real result-real)
844 (inst fstd result-real))
845 (inst fxch value-real))))))
846 (let ((value-imag (complex-double-reg-imag-tn value))
847 (result-imag (complex-double-reg-imag-tn result)))
848 (inst fxch value-imag)
849 (inst fstd (make-ea-for-raw-slot object index tmp 2))
850 (unless (location= value-imag result-imag)
851 (inst fstd result-imag))
852 (inst fxch value-imag))))
854 (define-vop (raw-instance-init/complex-double)
855 (:args (object :scs (descriptor-reg))
856 (value :scs (complex-double-reg)))
857 (:arg-types * complex-double-float)
858 (:info instance-length index)
860 (let ((value-real (complex-double-reg-real-tn value)))
861 (with-tn@fp-top (value-real)
862 (inst fstd (make-ea-for-raw-slot object index instance-length 4))))
863 (let ((value-imag (complex-double-reg-imag-tn value)))
864 (with-tn@fp-top (value-imag)
865 (inst fstd (make-ea-for-raw-slot object index instance-length 2))))))