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 (init-slot set-slot))
35 (define-vop (compare-and-swap-slot)
36 (:args (object :scs (descriptor-reg) :to :eval)
37 (old :scs (descriptor-reg any-reg) :target eax)
38 (new :scs (descriptor-reg any-reg)))
39 (:temporary (:sc descriptor-reg :offset eax-offset
40 :from (:argument 1) :to :result :target result)
42 (:info name offset lowtag)
44 (: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 (with-tls-ea (EA :base tls :base-already-live-p t)
77 (inst cmpxchg EA new :maybe-fs))
78 (inst cmp eax no-tls-value-marker-widetag)
81 (inst cmpxchg (make-ea :dword :base symbol
82 :disp (- (* symbol-value-slot n-word-bytes)
83 other-pointer-lowtag))
87 (inst cmp result unbound-marker-widetag)
88 (inst jmp :e unbound))))
90 (define-vop (%set-symbol-global-value cell-set)
91 (:variant symbol-value-slot other-pointer-lowtag))
93 (define-vop (fast-symbol-global-value cell-ref)
94 (:variant symbol-value-slot other-pointer-lowtag)
96 (:translate symbol-global-value))
98 (define-vop (symbol-global-value)
100 (:translate symbol-global-value)
101 (:args (object :scs (descriptor-reg) :to (:result 1)))
102 (:results (value :scs (descriptor-reg any-reg)))
104 (:save-p :compute-only)
106 (let ((err-lab (generate-error-code vop 'unbound-symbol-error object)))
107 (loadw value object symbol-value-slot other-pointer-lowtag)
108 (inst cmp value unbound-marker-widetag)
109 (inst jmp :e err-lab))))
114 (:args (symbol :scs (descriptor-reg))
115 (value :scs (descriptor-reg any-reg)))
116 (:temporary (:sc descriptor-reg) tls)
118 (let ((global-val (gen-label))
120 (loadw tls symbol symbol-tls-index-slot other-pointer-lowtag)
121 (with-tls-ea (EA :base tls :base-already-live-p t)
122 (inst cmp EA no-tls-value-marker-widetag :maybe-fs)
123 (inst jmp :z global-val)
124 (inst mov EA value :maybe-fs))
126 (emit-label global-val)
127 (storew value symbol symbol-value-slot other-pointer-lowtag)
130 ;; With Symbol-Value, we check that the value isn't the trap object. So
131 ;; Symbol-Value of NIL is NIL.
132 (define-vop (symbol-value)
133 (:translate symbol-value)
135 (:args (object :scs (descriptor-reg) :to (:result 1)))
136 (:results (value :scs (descriptor-reg any-reg)))
138 (:save-p :compute-only)
140 (let* ((check-unbound-label (gen-label))
141 (err-lab (generate-error-code vop 'unbound-symbol-error object))
142 (ret-lab (gen-label)))
143 (loadw value object symbol-tls-index-slot other-pointer-lowtag)
144 (with-tls-ea (EA :base value :base-already-live-p t)
145 (inst mov value EA :maybe-fs))
146 (inst cmp value no-tls-value-marker-widetag)
147 (inst jmp :ne check-unbound-label)
148 (loadw value object symbol-value-slot other-pointer-lowtag)
149 (emit-label check-unbound-label)
150 (inst cmp value unbound-marker-widetag)
151 (inst jmp :e err-lab)
152 (emit-label ret-lab))))
154 (define-vop (fast-symbol-value symbol-value)
155 ;; KLUDGE: not really fast, in fact, because we're going to have to
156 ;; do a full lookup of the thread-local area anyway. But half of
157 ;; the meaning of FAST-SYMBOL-VALUE is "do not signal an error if
158 ;; unbound", which is used in the implementation of COPY-SYMBOL. --
161 (:translate symbol-value)
163 (let ((ret-lab (gen-label)))
164 (loadw value object symbol-tls-index-slot other-pointer-lowtag)
165 (with-tls-ea (EA :base value :base-already-live-p t)
166 (inst mov value EA :maybe-fs))
167 (inst cmp value no-tls-value-marker-widetag)
168 (inst jmp :ne ret-lab)
169 (loadw value object symbol-value-slot other-pointer-lowtag)
170 (emit-label ret-lab)))))
174 (define-vop (symbol-value symbol-global-value)
175 (:translate symbol-value))
176 (define-vop (fast-symbol-value fast-symbol-global-value)
177 (:translate symbol-value))
178 (define-vop (set %set-symbol-global-value)))
184 (:args (object :scs (descriptor-reg)))
186 (:temporary (:sc descriptor-reg #+nil(:from (:argument 0))) value)
188 (let ((check-unbound-label (gen-label)))
189 (loadw value object symbol-tls-index-slot other-pointer-lowtag)
190 (with-tls-ea (EA :base value :base-already-live-p t)
191 (inst mov value EA :maybe-fs))
192 (inst cmp value no-tls-value-marker-widetag)
193 (inst jmp :ne check-unbound-label)
194 (loadw value object symbol-value-slot other-pointer-lowtag)
195 (emit-label check-unbound-label)
196 (inst cmp value unbound-marker-widetag))))
202 (:args (object :scs (descriptor-reg)))
205 (inst cmp (make-ea-for-object-slot object symbol-value-slot
206 other-pointer-lowtag)
207 unbound-marker-widetag)))
210 (define-vop (symbol-hash)
212 (:translate symbol-hash)
213 (:args (symbol :scs (descriptor-reg)))
214 (:results (res :scs (any-reg)))
215 (:result-types positive-fixnum)
217 ;; The symbol-hash slot of NIL holds NIL because it is also the
218 ;; cdr slot, so we have to strip off the two low bits to make sure
219 ;; it is a fixnum. The lowtag selection magic that is required to
220 ;; ensure this is explained in the comment in objdef.lisp
221 (loadw res symbol symbol-hash-slot other-pointer-lowtag)
222 (inst and res (lognot #b11))))
224 ;;;; fdefinition (FDEFN) objects
226 (define-vop (fdefn-fun cell-ref) ; /pfw - alpha
227 (:variant fdefn-fun-slot other-pointer-lowtag))
229 (define-vop (safe-fdefn-fun)
230 (:args (object :scs (descriptor-reg) :to (:result 1)))
231 (:results (value :scs (descriptor-reg any-reg)))
233 (:save-p :compute-only)
235 (loadw value object fdefn-fun-slot other-pointer-lowtag)
236 (inst cmp value nil-value)
237 (let ((err-lab (generate-error-code vop 'undefined-fun-error object)))
238 (inst jmp :e err-lab))))
240 (define-vop (set-fdefn-fun)
242 (:translate (setf fdefn-fun))
243 (:args (function :scs (descriptor-reg) :target result)
244 (fdefn :scs (descriptor-reg)))
245 (:temporary (:sc unsigned-reg) raw)
246 (:temporary (:sc byte-reg) type)
247 (:results (result :scs (descriptor-reg)))
249 (load-type type function (- fun-pointer-lowtag))
251 (make-ea-for-object-slot function simple-fun-code-offset
253 (inst cmp type simple-fun-header-widetag)
254 (inst jmp :e normal-fn)
255 (inst lea raw (make-fixup "closure_tramp" :foreign))
257 (storew function fdefn fdefn-fun-slot other-pointer-lowtag)
258 (storew raw fdefn fdefn-raw-addr-slot other-pointer-lowtag)
259 (move result function)))
261 (define-vop (fdefn-makunbound)
263 (:translate fdefn-makunbound)
264 (:args (fdefn :scs (descriptor-reg) :target result))
265 (:results (result :scs (descriptor-reg)))
267 (storew nil-value fdefn fdefn-fun-slot other-pointer-lowtag)
268 (storew (make-fixup "undefined_tramp" :foreign)
269 fdefn fdefn-raw-addr-slot other-pointer-lowtag)
270 (move result fdefn)))
272 ;;;; binding and unbinding
274 ;;; BIND -- Establish VAL as a binding for SYMBOL. Save the old value and
275 ;;; the symbol on the binding stack and stuff the new value into the
277 ;;; See the "Chapter 9: Specials" of the SBCL Internals Manual.
279 ;;; FIXME: Split into DYNBIND and BIND: DYNBIND needs to ensure
280 ;;; TLS-INDEX, whereas BIND should assume it is already in place. Make
281 ;;; LET &co compile into BIND, and PROGV into DYNBIND, plus ensure
282 ;;; TLS-INDEX at compile-time, and make loader and dumper preserve
283 ;;; the existence of a TLS-INDEX.
286 (:args (val :scs (any-reg descriptor-reg))
287 (symbol :scs (descriptor-reg)))
288 (:temporary (:sc unsigned-reg) tls-index bsp
291 (load-binding-stack-pointer bsp)
292 (loadw tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
293 (inst add bsp (* binding-size n-word-bytes))
294 (store-binding-stack-pointer bsp)
295 (inst test tls-index tls-index)
296 (inst jmp :ne tls-index-valid)
297 (inst mov tls-index symbol)
298 (inst call (make-fixup
299 (ecase (tn-offset tls-index)
300 (#.eax-offset 'alloc-tls-index-in-eax)
301 (#.ebx-offset 'alloc-tls-index-in-ebx)
302 (#.ecx-offset 'alloc-tls-index-in-ecx)
303 (#.edx-offset 'alloc-tls-index-in-edx)
304 (#.edi-offset 'alloc-tls-index-in-edi)
305 (#.esi-offset 'alloc-tls-index-in-esi))
308 ;; with-tls-ea on win32 causes tls-index to be an absolute address
309 ;; which is problematic when UNBIND uses with-tls-ea too.
310 #!+win32(move temp tls-index)
311 (with-tls-ea (EA :base tls-index :base-already-live-p t)
312 (inst push EA :maybe-fs)
313 (popw bsp (- binding-value-slot binding-size))
314 (storew #!-win32 tls-index
316 bsp (- binding-symbol-slot binding-size))
317 (inst mov EA val :maybe-fs))))
321 (:args (val :scs (any-reg descriptor-reg))
322 (symbol :scs (descriptor-reg)))
323 (:temporary (:sc unsigned-reg) temp bsp)
325 (load-symbol-value bsp *binding-stack-pointer*)
326 (loadw temp symbol symbol-value-slot other-pointer-lowtag)
327 (inst add bsp (* binding-size n-word-bytes))
328 (store-symbol-value bsp *binding-stack-pointer*)
329 (storew temp bsp (- binding-value-slot binding-size))
330 (storew symbol bsp (- binding-symbol-slot binding-size))
331 (storew val symbol symbol-value-slot other-pointer-lowtag)))
335 (:temporary (:sc unsigned-reg) temp bsp tls-index)
337 (load-binding-stack-pointer bsp)
338 ;; Load SYMBOL from stack, and get the TLS-INDEX.
339 (loadw tls-index bsp (- binding-symbol-slot binding-size))
340 ;; Load VALUE from stack, then restore it to the TLS area.
341 (loadw temp bsp (- binding-value-slot binding-size))
342 (with-tls-ea (EA :base tls-index :base-already-live-p t)
343 (inst mov EA temp :maybe-fs))
344 ;; Zero out the stack.
345 (inst sub bsp (* binding-size n-word-bytes))
346 (storew 0 bsp binding-symbol-slot)
347 (storew 0 bsp binding-value-slot)
348 (store-binding-stack-pointer bsp)))
352 (:temporary (:sc unsigned-reg) symbol value bsp)
354 (load-symbol-value bsp *binding-stack-pointer*)
355 (loadw symbol bsp (- binding-symbol-slot binding-size))
356 (loadw value bsp (- binding-value-slot binding-size))
357 (storew value symbol symbol-value-slot other-pointer-lowtag)
358 (storew 0 bsp (- binding-symbol-slot binding-size))
359 (storew 0 bsp (- binding-value-slot binding-size))
360 (inst sub bsp (* binding-size n-word-bytes))
361 (store-symbol-value bsp *binding-stack-pointer*)))
364 (define-vop (unbind-to-here)
365 (:args (where :scs (descriptor-reg any-reg)))
366 (:temporary (:sc unsigned-reg) symbol value bsp)
368 (load-binding-stack-pointer bsp)
373 (inst sub bsp (* binding-size n-word-bytes))
374 (loadw symbol bsp binding-symbol-slot)
375 (inst test symbol symbol)
377 ;; Bind stack debug sentinels have the unbound marker in the symbol slot
378 (inst cmp symbol unbound-marker-widetag)
380 (loadw value bsp binding-value-slot)
381 #!-sb-thread (storew value symbol symbol-value-slot other-pointer-lowtag)
382 #!+sb-thread (with-tls-ea (EA :base symbol :base-already-live-p t)
383 (inst mov EA value :maybe-fs))
384 (storew 0 bsp binding-symbol-slot)
387 (storew 0 bsp binding-value-slot)
390 (store-binding-stack-pointer bsp)
394 (define-vop (bind-sentinel)
395 (:temporary (:sc unsigned-reg) bsp)
397 (load-binding-stack-pointer bsp)
398 (inst add bsp (* binding-size n-word-bytes))
399 (storew unbound-marker-widetag bsp (- binding-symbol-slot binding-size))
400 (storew ebp-tn bsp (- binding-value-slot binding-size))
401 (store-binding-stack-pointer bsp)))
403 (define-vop (unbind-sentinel)
404 (:temporary (:sc unsigned-reg) bsp)
406 (load-binding-stack-pointer bsp)
407 (storew 0 bsp (- binding-value-slot binding-size))
408 (storew 0 bsp (- binding-symbol-slot binding-size))
409 (inst sub bsp (* binding-size n-word-bytes))
410 (store-binding-stack-pointer bsp)))
414 ;;;; closure indexing
416 (define-full-reffer closure-index-ref *
417 closure-info-offset fun-pointer-lowtag
418 (any-reg descriptor-reg) * %closure-index-ref)
420 (define-full-setter set-funcallable-instance-info *
421 funcallable-instance-info-offset fun-pointer-lowtag
422 (any-reg descriptor-reg) * %set-funcallable-instance-info)
424 (define-full-reffer funcallable-instance-info *
425 funcallable-instance-info-offset fun-pointer-lowtag
426 (descriptor-reg any-reg) * %funcallable-instance-info)
428 (define-vop (closure-ref slot-ref)
429 (:variant closure-info-offset fun-pointer-lowtag))
431 (define-vop (closure-init slot-set)
432 (:variant closure-info-offset fun-pointer-lowtag))
434 (define-vop (closure-init-from-fp)
435 (:args (object :scs (descriptor-reg)))
438 (storew ebp-tn object (+ closure-info-offset offset) fun-pointer-lowtag)))
440 ;;;; value cell hackery
442 (define-vop (value-cell-ref cell-ref)
443 (:variant value-cell-value-slot other-pointer-lowtag))
445 (define-vop (value-cell-set cell-set)
446 (:variant value-cell-value-slot other-pointer-lowtag))
448 ;;;; structure hackery
450 (define-vop (instance-length)
452 (:translate %instance-length)
453 (:args (struct :scs (descriptor-reg)))
454 (:results (res :scs (unsigned-reg)))
455 (:result-types positive-fixnum)
457 (loadw res struct 0 instance-pointer-lowtag)
458 (inst shr res n-widetag-bits)))
460 (define-full-reffer instance-index-ref *
461 instance-slots-offset instance-pointer-lowtag
462 (any-reg descriptor-reg) *
465 (define-full-setter instance-index-set *
466 instance-slots-offset instance-pointer-lowtag
467 (any-reg descriptor-reg) *
470 (define-full-compare-and-swap %compare-and-swap-instance-ref instance
471 instance-slots-offset instance-pointer-lowtag
472 (any-reg descriptor-reg) *
473 %compare-and-swap-instance-ref)
475 ;;;; code object frobbing
477 (define-full-reffer code-header-ref * 0 other-pointer-lowtag
478 (any-reg descriptor-reg) * code-header-ref)
480 (define-full-setter code-header-set * 0 other-pointer-lowtag
481 (any-reg descriptor-reg) * code-header-set)
483 ;;;; raw instance slot accessors
485 (defun make-ea-for-raw-slot (object index instance-length n-words)
486 (if (integerp instance-length)
487 ;; For RAW-INSTANCE-INIT/* VOPs, which know the exact instance length
491 :disp (- (* (- instance-length instance-slots-offset index (1- n-words))
493 instance-pointer-lowtag))
494 (flet ((make-ea-using-value (value)
495 (make-ea :dword :base object
496 :index instance-length
498 :disp (- (* (- instance-slots-offset n-words)
500 instance-pointer-lowtag
501 (* value n-word-bytes)))))
502 (if (typep index 'tn)
504 (any-reg (make-ea :dword
506 :index instance-length
507 :disp (- (* (- instance-slots-offset n-words)
509 instance-pointer-lowtag)))
510 (immediate (make-ea-using-value (tn-value index))))
511 (make-ea-using-value index)))))
513 (define-vop (raw-instance-ref/word)
514 (:translate %raw-instance-ref/word)
516 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
517 (:arg-types * tagged-num)
518 (:temporary (:sc unsigned-reg) tmp)
519 (:results (value :scs (unsigned-reg)))
520 (:result-types unsigned-num)
522 (loadw tmp object 0 instance-pointer-lowtag)
523 (inst shr tmp n-widetag-bits)
524 (when (sc-is index any-reg)
525 (inst shl tmp n-fixnum-tag-bits)
526 (inst sub tmp index))
527 (inst mov value (make-ea-for-raw-slot object index tmp 1))))
529 (define-vop (raw-instance-set/word)
530 (:translate %raw-instance-set/word)
532 (:args (object :scs (descriptor-reg))
533 (index :scs (any-reg immediate))
534 (value :scs (unsigned-reg) :target result))
535 (:arg-types * tagged-num unsigned-num)
536 (:temporary (:sc unsigned-reg) tmp)
537 (:results (result :scs (unsigned-reg)))
538 (:result-types unsigned-num)
540 (loadw tmp object 0 instance-pointer-lowtag)
541 (inst shr tmp n-widetag-bits)
542 (when (sc-is index any-reg)
543 (inst shl tmp n-fixnum-tag-bits)
544 (inst sub tmp index))
545 (inst mov (make-ea-for-raw-slot object index tmp 1) value)
546 (move result value)))
548 (define-vop (raw-instance-init/word)
549 (:args (object :scs (descriptor-reg))
550 (value :scs (unsigned-reg)))
551 (:arg-types * unsigned-num)
552 (:info instance-length index)
554 (inst mov (make-ea-for-raw-slot object index instance-length 1) value)))
556 (define-vop (raw-instance-atomic-incf/word)
557 (:translate %raw-instance-atomic-incf/word)
559 (:args (object :scs (descriptor-reg))
560 (index :scs (any-reg immediate))
561 (diff :scs (unsigned-reg) :target result))
562 (:arg-types * tagged-num unsigned-num)
563 (:temporary (:sc unsigned-reg) tmp)
564 (:results (result :scs (unsigned-reg)))
565 (:result-types unsigned-num)
567 (loadw tmp object 0 instance-pointer-lowtag)
568 (inst shr tmp n-widetag-bits)
569 (when (sc-is index any-reg)
570 (inst shl tmp n-fixnum-tag-bits)
571 (inst sub tmp index))
572 (inst xadd (make-ea-for-raw-slot object index tmp 1) diff :lock)
575 (define-vop (raw-instance-ref/single)
576 (:translate %raw-instance-ref/single)
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 (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)
587 (inst shl tmp n-fixnum-tag-bits)
588 (inst sub tmp index))
589 (with-empty-tn@fp-top(value)
590 (inst fld (make-ea-for-raw-slot object index tmp 1)))))
592 (define-vop (raw-instance-set/single)
593 (:translate %raw-instance-set/single)
595 (:args (object :scs (descriptor-reg))
596 (index :scs (any-reg immediate))
597 (value :scs (single-reg) :target result))
598 (:arg-types * tagged-num single-float)
599 (:temporary (:sc unsigned-reg) tmp)
600 (:results (result :scs (single-reg)))
601 (:result-types single-float)
603 (loadw tmp object 0 instance-pointer-lowtag)
604 (inst shr tmp n-widetag-bits)
605 (when (sc-is index any-reg)
606 (inst shl tmp n-fixnum-tag-bits)
607 (inst sub tmp index))
608 (unless (zerop (tn-offset value))
610 (inst fst (make-ea-for-raw-slot object index tmp 1))
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-init/single)
623 (:args (object :scs (descriptor-reg))
624 (value :scs (single-reg)))
625 (:arg-types * single-float)
626 (:info instance-length index)
628 (with-tn@fp-top (value)
629 (inst fst (make-ea-for-raw-slot object index instance-length 1)))))
631 (define-vop (raw-instance-ref/double)
632 (:translate %raw-instance-ref/double)
634 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
635 (:arg-types * tagged-num)
636 (:temporary (:sc unsigned-reg) tmp)
637 (:results (value :scs (double-reg)))
638 (:result-types double-float)
640 (loadw tmp object 0 instance-pointer-lowtag)
641 (inst shr tmp n-widetag-bits)
642 (when (sc-is index any-reg)
643 (inst shl tmp n-fixnum-tag-bits)
644 (inst sub tmp index))
645 (with-empty-tn@fp-top(value)
646 (inst fldd (make-ea-for-raw-slot object index tmp 2)))))
648 (define-vop (raw-instance-set/double)
649 (:translate %raw-instance-set/double)
651 (:args (object :scs (descriptor-reg))
652 (index :scs (any-reg immediate))
653 (value :scs (double-reg) :target result))
654 (:arg-types * tagged-num double-float)
655 (:temporary (:sc unsigned-reg) tmp)
656 (:results (result :scs (double-reg)))
657 (:result-types double-float)
659 (loadw tmp object 0 instance-pointer-lowtag)
660 (inst shr tmp n-widetag-bits)
661 (when (sc-is index any-reg)
662 (inst shl tmp n-fixnum-tag-bits)
663 (inst sub tmp index))
664 (unless (zerop (tn-offset value))
666 (inst fstd (make-ea-for-raw-slot object index tmp 2))
668 ((zerop (tn-offset value))
669 (unless (zerop (tn-offset result))
671 ((zerop (tn-offset result))
674 (unless (location= value result)
676 (inst fxch value)))))
678 (define-vop (raw-instance-init/double)
679 (:args (object :scs (descriptor-reg))
680 (value :scs (double-reg)))
681 (:arg-types * double-float)
682 (:info instance-length index)
684 (with-tn@fp-top (value)
685 (inst fstd (make-ea-for-raw-slot object index instance-length 2)))))
687 (define-vop (raw-instance-ref/complex-single)
688 (:translate %raw-instance-ref/complex-single)
690 (:args (object :scs (descriptor-reg))
691 (index :scs (any-reg immediate)))
692 (:arg-types * positive-fixnum)
693 (:temporary (:sc unsigned-reg) tmp)
694 (:results (value :scs (complex-single-reg)))
695 (:result-types complex-single-float)
697 (loadw tmp object 0 instance-pointer-lowtag)
698 (inst shr tmp n-widetag-bits)
699 (when (sc-is index any-reg)
700 (inst shl tmp n-fixnum-tag-bits)
701 (inst sub tmp index))
702 (let ((real-tn (complex-single-reg-real-tn value)))
703 (with-empty-tn@fp-top (real-tn)
704 (inst fld (make-ea-for-raw-slot object index tmp 2))))
705 (let ((imag-tn (complex-single-reg-imag-tn value)))
706 (with-empty-tn@fp-top (imag-tn)
707 (inst fld (make-ea-for-raw-slot object index tmp 1))))))
709 (define-vop (raw-instance-set/complex-single)
710 (:translate %raw-instance-set/complex-single)
712 (:args (object :scs (descriptor-reg))
713 (index :scs (any-reg immediate))
714 (value :scs (complex-single-reg) :target result))
715 (:arg-types * positive-fixnum complex-single-float)
716 (:temporary (:sc unsigned-reg) tmp)
717 (:results (result :scs (complex-single-reg)))
718 (:result-types complex-single-float)
720 (loadw tmp object 0 instance-pointer-lowtag)
721 (inst shr tmp n-widetag-bits)
722 (when (sc-is index any-reg)
723 (inst shl tmp n-fixnum-tag-bits)
724 (inst sub tmp index))
725 (let ((value-real (complex-single-reg-real-tn value))
726 (result-real (complex-single-reg-real-tn result)))
727 (cond ((zerop (tn-offset value-real))
729 (inst fst (make-ea-for-raw-slot object index tmp 2))
730 (unless (zerop (tn-offset result-real))
731 ;; Value is in ST0 but not result.
732 (inst fst result-real)))
734 ;; Value is not in ST0.
735 (inst fxch value-real)
736 (inst fst (make-ea-for-raw-slot object index tmp 2))
737 (cond ((zerop (tn-offset result-real))
738 ;; The result is in ST0.
739 (inst fst value-real))
741 ;; Neither value or result are in ST0
742 (unless (location= value-real result-real)
743 (inst fst result-real))
744 (inst fxch value-real))))))
745 (let ((value-imag (complex-single-reg-imag-tn value))
746 (result-imag (complex-single-reg-imag-tn result)))
747 (inst fxch value-imag)
748 (inst fst (make-ea-for-raw-slot object index tmp 1))
749 (unless (location= value-imag result-imag)
750 (inst fst result-imag))
751 (inst fxch value-imag))))
753 (define-vop (raw-instance-init/complex-single)
754 (:args (object :scs (descriptor-reg))
755 (value :scs (complex-single-reg)))
756 (:arg-types * complex-single-float)
757 (:info instance-length index)
759 (let ((value-real (complex-single-reg-real-tn value)))
760 (with-tn@fp-top (value-real)
761 (inst fst (make-ea-for-raw-slot object index instance-length 2))))
762 (let ((value-imag (complex-single-reg-imag-tn value)))
763 (with-tn@fp-top (value-imag)
764 (inst fst (make-ea-for-raw-slot object index instance-length 1))))))
766 (define-vop (raw-instance-ref/complex-double)
767 (:translate %raw-instance-ref/complex-double)
769 (:args (object :scs (descriptor-reg))
770 (index :scs (any-reg immediate)))
771 (:arg-types * positive-fixnum)
772 (:temporary (:sc unsigned-reg) tmp)
773 (:results (value :scs (complex-double-reg)))
774 (:result-types complex-double-float)
776 (loadw tmp object 0 instance-pointer-lowtag)
777 (inst shr tmp n-widetag-bits)
778 (when (sc-is index any-reg)
779 (inst shl tmp n-fixnum-tag-bits)
780 (inst sub tmp index))
781 (let ((real-tn (complex-double-reg-real-tn value)))
782 (with-empty-tn@fp-top (real-tn)
783 (inst fldd (make-ea-for-raw-slot object index tmp 4))))
784 (let ((imag-tn (complex-double-reg-imag-tn value)))
785 (with-empty-tn@fp-top (imag-tn)
786 (inst fldd (make-ea-for-raw-slot object index tmp 2))))))
788 (define-vop (raw-instance-set/complex-double)
789 (:translate %raw-instance-set/complex-double)
791 (:args (object :scs (descriptor-reg))
792 (index :scs (any-reg immediate))
793 (value :scs (complex-double-reg) :target result))
794 (:arg-types * positive-fixnum complex-double-float)
795 (:temporary (:sc unsigned-reg) tmp)
796 (:results (result :scs (complex-double-reg)))
797 (:result-types complex-double-float)
799 (loadw tmp object 0 instance-pointer-lowtag)
800 (inst shr tmp n-widetag-bits)
801 (when (sc-is index any-reg)
802 (inst shl tmp n-fixnum-tag-bits)
803 (inst sub tmp index))
804 (let ((value-real (complex-double-reg-real-tn value))
805 (result-real (complex-double-reg-real-tn result)))
806 (cond ((zerop (tn-offset value-real))
808 (inst fstd (make-ea-for-raw-slot object index tmp 4))
809 (unless (zerop (tn-offset result-real))
810 ;; Value is in ST0 but not result.
811 (inst fstd result-real)))
813 ;; Value is not in ST0.
814 (inst fxch value-real)
815 (inst fstd (make-ea-for-raw-slot object index tmp 4))
816 (cond ((zerop (tn-offset result-real))
817 ;; The result is in ST0.
818 (inst fstd value-real))
820 ;; Neither value or result are in ST0
821 (unless (location= value-real result-real)
822 (inst fstd result-real))
823 (inst fxch value-real))))))
824 (let ((value-imag (complex-double-reg-imag-tn value))
825 (result-imag (complex-double-reg-imag-tn result)))
826 (inst fxch value-imag)
827 (inst fstd (make-ea-for-raw-slot object index tmp 2))
828 (unless (location= value-imag result-imag)
829 (inst fstd result-imag))
830 (inst fxch value-imag))))
832 (define-vop (raw-instance-init/complex-double)
833 (:args (object :scs (descriptor-reg))
834 (value :scs (complex-double-reg)))
835 (:arg-types * complex-double-float)
836 (:info instance-length index)
838 (let ((value-real (complex-double-reg-real-tn value)))
839 (with-tn@fp-top (value-real)
840 (inst fstd (make-ea-for-raw-slot object index instance-length 4))))
841 (let ((value-imag (complex-double-reg-imag-tn value)))
842 (with-tn@fp-top (value-imag)
843 (inst fstd (make-ea-for-raw-slot object index instance-length 2))))))