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)))
45 (inst cmpxchg (make-ea :dword :base object
46 :disp (- (* offset n-word-bytes) lowtag))
50 ;;;; symbol hacking VOPs
52 (define-vop (%compare-and-swap-symbol-value)
53 (:translate %compare-and-swap-symbol-value)
54 (:args (symbol :scs (descriptor-reg) :to (:result 1))
55 (old :scs (descriptor-reg any-reg) :target eax)
56 (new :scs (descriptor-reg any-reg)))
57 (:temporary (:sc descriptor-reg :offset eax-offset) eax)
59 (:temporary (:sc descriptor-reg) tls)
60 (:results (result :scs (descriptor-reg any-reg)))
64 ;; This code has to pathological cases: NO-TLS-VALUE-MARKER
65 ;; or UNBOUND-MARKER as NEW: in either case we would end up
66 ;; doing possible damage with CMPXCHG -- so don't do that!
67 (let ((unbound (generate-error-code vop 'unbound-symbol-error symbol))
72 (loadw tls symbol symbol-tls-index-slot other-pointer-lowtag)
73 ;; Thread-local area, no LOCK needed.
74 (inst cmpxchg (make-ea :dword :base tls) new :fs)
75 (inst cmp eax no-tls-value-marker-widetag)
78 (inst cmpxchg (make-ea :dword :base symbol
79 :disp (- (* symbol-value-slot n-word-bytes)
80 other-pointer-lowtag))
84 (inst cmp result unbound-marker-widetag)
85 (inst jmp :e unbound))))
87 ;;; these next two cf the sparc version, by jrd.
88 ;;; FIXME: Deref this ^ reference.
91 ;;; The compiler likes to be able to directly SET symbols.
94 (:args (symbol :scs (descriptor-reg))
95 (value :scs (descriptor-reg any-reg)))
96 (:temporary (:sc descriptor-reg) tls)
97 ;;(:policy :fast-safe)
99 (let ((global-val (gen-label))
101 (loadw tls symbol symbol-tls-index-slot other-pointer-lowtag)
102 (inst cmp (make-ea :dword :base tls) no-tls-value-marker-widetag :fs)
103 (inst jmp :z global-val)
104 (inst mov (make-ea :dword :base tls) value :fs)
106 (emit-label global-val)
107 (storew value symbol symbol-value-slot other-pointer-lowtag)
110 ;; unithreaded it's a lot simpler ...
112 (define-vop (set cell-set)
113 (:variant symbol-value-slot other-pointer-lowtag))
115 ;;; With Symbol-Value, we check that the value isn't the trap object. So
116 ;;; Symbol-Value of NIL is NIL.
118 (define-vop (symbol-value)
119 (:translate symbol-value)
121 (:args (object :scs (descriptor-reg) :to (:result 1)))
122 (:results (value :scs (descriptor-reg any-reg)))
124 (:save-p :compute-only)
126 (let* ((check-unbound-label (gen-label))
127 (err-lab (generate-error-code vop 'unbound-symbol-error object))
128 (ret-lab (gen-label)))
129 (loadw value object symbol-tls-index-slot other-pointer-lowtag)
130 (inst mov value (make-ea :dword :base value) :fs)
131 (inst cmp value no-tls-value-marker-widetag)
132 (inst jmp :ne check-unbound-label)
133 (loadw value object symbol-value-slot other-pointer-lowtag)
134 (emit-label check-unbound-label)
135 (inst cmp value unbound-marker-widetag)
136 (inst jmp :e err-lab)
137 (emit-label ret-lab))))
140 (define-vop (fast-symbol-value symbol-value)
141 ;; KLUDGE: not really fast, in fact, because we're going to have to
142 ;; do a full lookup of the thread-local area anyway. But half of
143 ;; the meaning of FAST-SYMBOL-VALUE is "do not signal an error if
144 ;; unbound", which is used in the implementation of COPY-SYMBOL. --
147 (:translate symbol-value)
149 (let ((ret-lab (gen-label)))
150 (loadw value object symbol-tls-index-slot other-pointer-lowtag)
151 (inst mov value (make-ea :dword :base value) :fs)
152 (inst cmp value no-tls-value-marker-widetag)
153 (inst jmp :ne ret-lab)
154 (loadw value object symbol-value-slot other-pointer-lowtag)
155 (emit-label ret-lab))))
158 (define-vop (symbol-value)
159 (:translate symbol-value)
161 (:args (object :scs (descriptor-reg) :to (:result 1)))
162 (:results (value :scs (descriptor-reg any-reg)))
164 (:save-p :compute-only)
166 (let ((err-lab (generate-error-code vop 'unbound-symbol-error object)))
167 (loadw value object symbol-value-slot other-pointer-lowtag)
168 (inst cmp value unbound-marker-widetag)
169 (inst jmp :e err-lab))))
172 (define-vop (fast-symbol-value cell-ref)
173 (:variant symbol-value-slot other-pointer-lowtag)
175 (:translate symbol-value))
177 (defknown locked-symbol-global-value-add (symbol fixnum) fixnum ())
179 (define-vop (locked-symbol-global-value-add)
180 (:args (object :scs (descriptor-reg) :to :result)
181 (value :scs (any-reg) :target result))
182 (:arg-types * tagged-num)
183 (:results (result :scs (any-reg) :from (:argument 1)))
185 (:translate locked-symbol-global-value-add)
186 (:result-types tagged-num)
190 (inst add (make-ea-for-object-slot object symbol-value-slot
191 other-pointer-lowtag)
198 (:args (object :scs (descriptor-reg)))
201 (:temporary (:sc descriptor-reg #+nil(:from (:argument 0))) value)
203 (let ((check-unbound-label (gen-label)))
204 (loadw value object symbol-tls-index-slot other-pointer-lowtag)
205 (inst mov value (make-ea :dword :base value) :fs)
206 (inst cmp value no-tls-value-marker-widetag)
207 (inst jmp :ne check-unbound-label)
208 (loadw value object symbol-value-slot other-pointer-lowtag)
209 (emit-label check-unbound-label)
210 (inst cmp value unbound-marker-widetag)
211 (inst jmp (if not-p :e :ne) target))))
217 (:args (object :scs (descriptor-reg)))
221 (inst cmp (make-ea-for-object-slot object symbol-value-slot
222 other-pointer-lowtag)
223 unbound-marker-widetag)
224 (inst jmp (if not-p :e :ne) target)))
227 (define-vop (symbol-hash)
229 (:translate symbol-hash)
230 (:args (symbol :scs (descriptor-reg)))
231 (:results (res :scs (any-reg)))
232 (:result-types positive-fixnum)
234 ;; The symbol-hash slot of NIL holds NIL because it is also the
235 ;; cdr slot, so we have to strip off the two low bits to make sure
236 ;; it is a fixnum. The lowtag selection magic that is required to
237 ;; ensure this is explained in the comment in objdef.lisp
238 (loadw res symbol symbol-hash-slot other-pointer-lowtag)
239 (inst and res (lognot #b11))))
241 ;;;; fdefinition (FDEFN) objects
243 (define-vop (fdefn-fun cell-ref) ; /pfw - alpha
244 (:variant fdefn-fun-slot other-pointer-lowtag))
246 (define-vop (safe-fdefn-fun)
247 (:args (object :scs (descriptor-reg) :to (:result 1)))
248 (:results (value :scs (descriptor-reg any-reg)))
250 (:save-p :compute-only)
252 (loadw value object fdefn-fun-slot other-pointer-lowtag)
253 (inst cmp value nil-value)
254 (let ((err-lab (generate-error-code vop 'undefined-fun-error object)))
255 (inst jmp :e err-lab))))
257 (define-vop (set-fdefn-fun)
259 (:translate (setf fdefn-fun))
260 (:args (function :scs (descriptor-reg) :target result)
261 (fdefn :scs (descriptor-reg)))
262 (:temporary (:sc unsigned-reg) raw)
263 (:temporary (:sc byte-reg) type)
264 (:results (result :scs (descriptor-reg)))
266 (load-type type function (- fun-pointer-lowtag))
268 (make-ea-for-object-slot function simple-fun-code-offset
270 (inst cmp type simple-fun-header-widetag)
271 (inst jmp :e normal-fn)
272 (inst lea raw (make-fixup "closure_tramp" :foreign))
274 (storew function fdefn fdefn-fun-slot other-pointer-lowtag)
275 (storew raw fdefn fdefn-raw-addr-slot other-pointer-lowtag)
276 (move result function)))
278 (define-vop (fdefn-makunbound)
280 (:translate fdefn-makunbound)
281 (:args (fdefn :scs (descriptor-reg) :target result))
282 (:results (result :scs (descriptor-reg)))
284 (storew nil-value fdefn fdefn-fun-slot other-pointer-lowtag)
285 (storew (make-fixup "undefined_tramp" :foreign)
286 fdefn fdefn-raw-addr-slot other-pointer-lowtag)
287 (move result fdefn)))
289 ;;;; binding and unbinding
291 ;;; BIND -- Establish VAL as a binding for SYMBOL. Save the old value and
292 ;;; the symbol on the binding stack and stuff the new value into the
295 ;;; FIXME: Split into DYNBIND and BIND: DYNBIND needs to ensure
296 ;;; TLS-INDEX, whereas BIND should assume it is already in place. Make
297 ;;; LET &co compile into BIND, and PROGV into DYNBIND, plus ensure
298 ;;; TLS-INDEX at compile-time, and make loader and dumper preserve
299 ;;; the existence of a TLS-INDEX.
302 (:args (val :scs (any-reg descriptor-reg))
303 (symbol :scs (descriptor-reg)))
304 (:temporary (:sc unsigned-reg) tls-index bsp)
306 (let ((tls-index-valid (gen-label)))
307 (load-binding-stack-pointer bsp)
308 (loadw tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
309 (inst add bsp (* binding-size n-word-bytes))
310 (store-binding-stack-pointer bsp)
311 (inst or tls-index tls-index)
312 (inst jmp :ne tls-index-valid)
313 (inst mov tls-index symbol)
314 (inst call (make-fixup
315 (ecase (tn-offset tls-index)
316 (#.eax-offset 'alloc-tls-index-in-eax)
317 (#.ebx-offset 'alloc-tls-index-in-ebx)
318 (#.ecx-offset 'alloc-tls-index-in-ecx)
319 (#.edx-offset 'alloc-tls-index-in-edx)
320 (#.edi-offset 'alloc-tls-index-in-edi)
321 (#.esi-offset 'alloc-tls-index-in-esi))
323 (emit-label tls-index-valid)
324 (inst push (make-ea :dword :base tls-index) :fs)
325 (popw bsp (- binding-value-slot binding-size))
326 (storew symbol bsp (- binding-symbol-slot binding-size))
327 (inst mov (make-ea :dword :base tls-index) val :fs))))
331 (:args (val :scs (any-reg descriptor-reg))
332 (symbol :scs (descriptor-reg)))
333 (:temporary (:sc unsigned-reg) temp bsp)
335 (load-symbol-value bsp *binding-stack-pointer*)
336 (loadw temp symbol symbol-value-slot other-pointer-lowtag)
337 (inst add bsp (* binding-size n-word-bytes))
338 (store-symbol-value bsp *binding-stack-pointer*)
339 (storew temp bsp (- binding-value-slot binding-size))
340 (storew symbol bsp (- binding-symbol-slot binding-size))
341 (storew val symbol symbol-value-slot other-pointer-lowtag)))
345 (:temporary (:sc unsigned-reg) temp bsp tls-index)
347 (load-binding-stack-pointer bsp)
348 ;; Load SYMBOL from stack, and get the TLS-INDEX.
349 (loadw temp bsp (- binding-symbol-slot binding-size))
350 (loadw tls-index temp symbol-tls-index-slot other-pointer-lowtag)
351 ;; Load VALUE from stack, then restore it to the TLS area.
352 (loadw temp bsp (- binding-value-slot binding-size))
353 (inst mov (make-ea :dword :base tls-index) temp :fs)
354 ;; Zero out the stack.
355 (storew 0 bsp (- binding-symbol-slot binding-size))
356 (storew 0 bsp (- binding-value-slot binding-size))
357 (inst sub bsp (* binding-size n-word-bytes))
358 (store-binding-stack-pointer bsp)))
362 (:temporary (:sc unsigned-reg) symbol value bsp)
364 (load-symbol-value bsp *binding-stack-pointer*)
365 (loadw symbol bsp (- binding-symbol-slot binding-size))
366 (loadw value bsp (- binding-value-slot binding-size))
367 (storew value symbol symbol-value-slot other-pointer-lowtag)
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-symbol-value bsp *binding-stack-pointer*)))
374 (define-vop (unbind-to-here)
375 (:args (where :scs (descriptor-reg any-reg)))
376 (:temporary (:sc unsigned-reg) symbol value bsp #!+sb-thread tls-index)
378 (load-binding-stack-pointer bsp)
383 (loadw symbol bsp (- binding-symbol-slot binding-size))
384 (inst or symbol symbol)
386 ;; Bind stack debug sentinels have the unbound marker in the symbol slot
387 (inst cmp symbol unbound-marker-widetag)
389 (loadw value bsp (- binding-value-slot binding-size))
390 #!-sb-thread (storew value symbol symbol-value-slot other-pointer-lowtag)
393 tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
394 #!+sb-thread (inst mov (make-ea :dword :base tls-index) value :fs)
395 (storew 0 bsp (- binding-symbol-slot binding-size))
398 (storew 0 bsp (- binding-value-slot binding-size))
399 (inst sub bsp (* binding-size n-word-bytes))
402 (store-binding-stack-pointer bsp)
406 (define-vop (bind-sentinel)
407 (:temporary (:sc unsigned-reg) bsp)
409 (load-binding-stack-pointer bsp)
410 (inst add bsp (* binding-size n-word-bytes))
411 (storew unbound-marker-widetag bsp (- binding-symbol-slot binding-size))
412 (storew ebp-tn bsp (- binding-value-slot binding-size))
413 (store-binding-stack-pointer bsp)))
415 (define-vop (unbind-sentinel)
416 (:temporary (:sc unsigned-reg) bsp)
418 (load-binding-stack-pointer bsp)
419 (storew 0 bsp (- binding-value-slot binding-size))
420 (storew 0 bsp (- binding-symbol-slot binding-size))
421 (inst sub bsp (* binding-size n-word-bytes))
422 (store-binding-stack-pointer bsp)))
426 ;;;; closure indexing
428 (define-full-reffer closure-index-ref *
429 closure-info-offset fun-pointer-lowtag
430 (any-reg descriptor-reg) * %closure-index-ref)
432 (define-full-setter set-funcallable-instance-info *
433 funcallable-instance-info-offset fun-pointer-lowtag
434 (any-reg descriptor-reg) * %set-funcallable-instance-info)
436 (define-full-reffer funcallable-instance-info *
437 funcallable-instance-info-offset fun-pointer-lowtag
438 (descriptor-reg any-reg) * %funcallable-instance-info)
440 (define-vop (closure-ref slot-ref)
441 (:variant closure-info-offset fun-pointer-lowtag))
443 (define-vop (closure-init slot-set)
444 (:variant closure-info-offset fun-pointer-lowtag))
446 ;;;; value cell hackery
448 (define-vop (value-cell-ref cell-ref)
449 (:variant value-cell-value-slot other-pointer-lowtag))
451 (define-vop (value-cell-set cell-set)
452 (:variant value-cell-value-slot other-pointer-lowtag))
454 ;;;; structure hackery
456 (define-vop (instance-length)
458 (:translate %instance-length)
459 (:args (struct :scs (descriptor-reg)))
460 (:results (res :scs (unsigned-reg)))
461 (:result-types positive-fixnum)
463 (loadw res struct 0 instance-pointer-lowtag)
464 (inst shr res n-widetag-bits)))
466 (define-full-reffer instance-index-ref *
467 instance-slots-offset instance-pointer-lowtag
468 (any-reg descriptor-reg) *
471 (define-full-setter instance-index-set *
472 instance-slots-offset instance-pointer-lowtag
473 (any-reg descriptor-reg) *
476 (define-full-compare-and-swap %compare-and-swap-instance-ref instance
477 instance-slots-offset instance-pointer-lowtag
478 (any-reg descriptor-reg) *
479 %compare-and-swap-instance-ref)
481 ;;;; code object frobbing
483 (define-full-reffer code-header-ref * 0 other-pointer-lowtag
484 (any-reg descriptor-reg) * code-header-ref)
486 (define-full-setter code-header-set * 0 other-pointer-lowtag
487 (any-reg descriptor-reg) * code-header-set)
489 ;;;; raw instance slot accessors
491 (defun make-ea-for-raw-slot (object index instance-length n-words)
492 (if (integerp instance-length)
493 ;; For RAW-INSTANCE-INIT/* VOPs, which know the exact instance length
497 :disp (- (* (- instance-length instance-slots-offset index (1- n-words))
499 instance-pointer-lowtag))
500 (flet ((make-ea-using-value (value)
501 (make-ea :dword :base object
502 :index instance-length
504 :disp (- (* (- instance-slots-offset n-words)
506 instance-pointer-lowtag
507 (* value n-word-bytes)))))
508 (if (typep index 'tn)
510 (any-reg (make-ea :dword
512 :index instance-length
513 :disp (- (* (- instance-slots-offset n-words)
515 instance-pointer-lowtag)))
516 (immediate (make-ea-using-value (tn-value index))))
517 (make-ea-using-value index)))))
519 (define-vop (raw-instance-ref/word)
520 (:translate %raw-instance-ref/word)
522 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
523 (:arg-types * tagged-num)
524 (:temporary (:sc unsigned-reg) tmp)
525 (:results (value :scs (unsigned-reg)))
526 (:result-types unsigned-num)
528 (loadw tmp object 0 instance-pointer-lowtag)
529 (inst shr tmp n-widetag-bits)
530 (when (sc-is index any-reg)
532 (inst sub tmp index))
533 (inst mov value (make-ea-for-raw-slot object index tmp 1))))
535 (define-vop (raw-instance-set/word)
536 (:translate %raw-instance-set/word)
538 (:args (object :scs (descriptor-reg))
539 (index :scs (any-reg immediate))
540 (value :scs (unsigned-reg) :target result))
541 (:arg-types * tagged-num unsigned-num)
542 (:temporary (:sc unsigned-reg) tmp)
543 (:results (result :scs (unsigned-reg)))
544 (:result-types unsigned-num)
546 (loadw tmp object 0 instance-pointer-lowtag)
547 (inst shr tmp n-widetag-bits)
548 (when (sc-is index any-reg)
550 (inst sub tmp index))
551 (inst mov (make-ea-for-raw-slot object index tmp 1) value)
552 (move result value)))
554 (define-vop (raw-instance-init/word)
555 (:args (object :scs (descriptor-reg))
556 (value :scs (unsigned-reg)))
557 (:arg-types * unsigned-num)
558 (:info instance-length index)
560 (inst mov (make-ea-for-raw-slot object index instance-length 1) value)))
562 (define-vop (raw-instance-atomic-incf/word)
563 (:translate %raw-instance-atomic-incf/word)
565 (:args (object :scs (descriptor-reg))
566 (index :scs (any-reg immediate))
567 (diff :scs (signed-reg) :target result))
568 (:arg-types * tagged-num signed-num)
569 (:temporary (:sc unsigned-reg) tmp)
570 (:results (result :scs (unsigned-reg)))
571 (:result-types unsigned-num)
573 (loadw tmp object 0 instance-pointer-lowtag)
574 (inst shr tmp n-widetag-bits)
575 (when (sc-is index any-reg)
577 (inst sub tmp index))
578 (inst xadd (make-ea-for-raw-slot object index tmp 1) diff :lock)
581 (define-vop (raw-instance-ref/single)
582 (:translate %raw-instance-ref/single)
584 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
585 (:arg-types * tagged-num)
586 (:temporary (:sc unsigned-reg) tmp)
587 (:results (value :scs (single-reg)))
588 (:result-types single-float)
590 (loadw tmp object 0 instance-pointer-lowtag)
591 (inst shr tmp n-widetag-bits)
592 (when (sc-is index any-reg)
594 (inst sub tmp index))
595 (with-empty-tn@fp-top(value)
596 (inst fld (make-ea-for-raw-slot object index tmp 1)))))
598 (define-vop (raw-instance-set/single)
599 (:translate %raw-instance-set/single)
601 (:args (object :scs (descriptor-reg))
602 (index :scs (any-reg immediate))
603 (value :scs (single-reg) :target result))
604 (:arg-types * tagged-num single-float)
605 (:temporary (:sc unsigned-reg) tmp)
606 (:results (result :scs (single-reg)))
607 (:result-types single-float)
609 (loadw tmp object 0 instance-pointer-lowtag)
610 (inst shr tmp n-widetag-bits)
611 (when (sc-is index any-reg)
613 (inst sub tmp index))
614 (unless (zerop (tn-offset value))
616 (inst fst (make-ea-for-raw-slot object index tmp 1))
618 ((zerop (tn-offset value))
619 (unless (zerop (tn-offset result))
621 ((zerop (tn-offset result))
624 (unless (location= value result)
626 (inst fxch value)))))
628 (define-vop (raw-instance-init/single)
629 (:args (object :scs (descriptor-reg))
630 (value :scs (single-reg)))
631 (:arg-types * single-float)
632 (:info instance-length index)
634 (with-tn@fp-top (value)
635 (inst fst (make-ea-for-raw-slot object index instance-length 1)))))
637 (define-vop (raw-instance-ref/double)
638 (:translate %raw-instance-ref/double)
640 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
641 (:arg-types * tagged-num)
642 (:temporary (:sc unsigned-reg) tmp)
643 (:results (value :scs (double-reg)))
644 (:result-types double-float)
646 (loadw tmp object 0 instance-pointer-lowtag)
647 (inst shr tmp n-widetag-bits)
648 (when (sc-is index any-reg)
650 (inst sub tmp index))
651 (with-empty-tn@fp-top(value)
652 (inst fldd (make-ea-for-raw-slot object index tmp 2)))))
654 (define-vop (raw-instance-set/double)
655 (:translate %raw-instance-set/double)
657 (:args (object :scs (descriptor-reg))
658 (index :scs (any-reg immediate))
659 (value :scs (double-reg) :target result))
660 (:arg-types * tagged-num double-float)
661 (:temporary (:sc unsigned-reg) tmp)
662 (:results (result :scs (double-reg)))
663 (:result-types double-float)
665 (loadw tmp object 0 instance-pointer-lowtag)
666 (inst shr tmp n-widetag-bits)
667 (when (sc-is index any-reg)
669 (inst sub tmp index))
670 (unless (zerop (tn-offset value))
672 (inst fstd (make-ea-for-raw-slot object index tmp 2))
674 ((zerop (tn-offset value))
675 (unless (zerop (tn-offset result))
677 ((zerop (tn-offset result))
680 (unless (location= value result)
682 (inst fxch value)))))
684 (define-vop (raw-instance-init/double)
685 (:args (object :scs (descriptor-reg))
686 (value :scs (double-reg)))
687 (:arg-types * double-float)
688 (:info instance-length index)
690 (with-tn@fp-top (value)
691 (inst fstd (make-ea-for-raw-slot object index instance-length 2)))))
693 (define-vop (raw-instance-ref/complex-single)
694 (:translate %raw-instance-ref/complex-single)
696 (:args (object :scs (descriptor-reg))
697 (index :scs (any-reg immediate)))
698 (:arg-types * positive-fixnum)
699 (:temporary (:sc unsigned-reg) tmp)
700 (:results (value :scs (complex-single-reg)))
701 (:result-types complex-single-float)
703 (loadw tmp object 0 instance-pointer-lowtag)
704 (inst shr tmp n-widetag-bits)
705 (when (sc-is index any-reg)
707 (inst sub tmp index))
708 (let ((real-tn (complex-single-reg-real-tn value)))
709 (with-empty-tn@fp-top (real-tn)
710 (inst fld (make-ea-for-raw-slot object index tmp 2))))
711 (let ((imag-tn (complex-single-reg-imag-tn value)))
712 (with-empty-tn@fp-top (imag-tn)
713 (inst fld (make-ea-for-raw-slot object index tmp 1))))))
715 (define-vop (raw-instance-set/complex-single)
716 (:translate %raw-instance-set/complex-single)
718 (:args (object :scs (descriptor-reg))
719 (index :scs (any-reg immediate))
720 (value :scs (complex-single-reg) :target result))
721 (:arg-types * positive-fixnum complex-single-float)
722 (:temporary (:sc unsigned-reg) tmp)
723 (:results (result :scs (complex-single-reg)))
724 (:result-types complex-single-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 ((value-real (complex-single-reg-real-tn value))
732 (result-real (complex-single-reg-real-tn result)))
733 (cond ((zerop (tn-offset value-real))
735 (inst fst (make-ea-for-raw-slot object index tmp 2))
736 (unless (zerop (tn-offset result-real))
737 ;; Value is in ST0 but not result.
738 (inst fst result-real)))
740 ;; Value is not in ST0.
741 (inst fxch value-real)
742 (inst fst (make-ea-for-raw-slot object index tmp 2))
743 (cond ((zerop (tn-offset result-real))
744 ;; The result is in ST0.
745 (inst fst value-real))
747 ;; Neither value or result are in ST0
748 (unless (location= value-real result-real)
749 (inst fst result-real))
750 (inst fxch value-real))))))
751 (let ((value-imag (complex-single-reg-imag-tn value))
752 (result-imag (complex-single-reg-imag-tn result)))
753 (inst fxch value-imag)
754 (inst fst (make-ea-for-raw-slot object index tmp 1))
755 (unless (location= value-imag result-imag)
756 (inst fst result-imag))
757 (inst fxch value-imag))))
759 (define-vop (raw-instance-init/complex-single)
760 (:args (object :scs (descriptor-reg))
761 (value :scs (complex-single-reg)))
762 (:arg-types * complex-single-float)
763 (:info instance-length index)
765 (let ((value-real (complex-single-reg-real-tn value)))
766 (with-tn@fp-top (value-real)
767 (inst fst (make-ea-for-raw-slot object index instance-length 2))))
768 (let ((value-imag (complex-single-reg-imag-tn value)))
769 (with-tn@fp-top (value-imag)
770 (inst fst (make-ea-for-raw-slot object index instance-length 1))))))
772 (define-vop (raw-instance-ref/complex-double)
773 (:translate %raw-instance-ref/complex-double)
775 (:args (object :scs (descriptor-reg))
776 (index :scs (any-reg immediate)))
777 (:arg-types * positive-fixnum)
778 (:temporary (:sc unsigned-reg) tmp)
779 (:results (value :scs (complex-double-reg)))
780 (:result-types complex-double-float)
782 (loadw tmp object 0 instance-pointer-lowtag)
783 (inst shr tmp n-widetag-bits)
784 (when (sc-is index any-reg)
786 (inst sub tmp index))
787 (let ((real-tn (complex-double-reg-real-tn value)))
788 (with-empty-tn@fp-top (real-tn)
789 (inst fldd (make-ea-for-raw-slot object index tmp 4))))
790 (let ((imag-tn (complex-double-reg-imag-tn value)))
791 (with-empty-tn@fp-top (imag-tn)
792 (inst fldd (make-ea-for-raw-slot object index tmp 2))))))
794 (define-vop (raw-instance-set/complex-double)
795 (:translate %raw-instance-set/complex-double)
797 (:args (object :scs (descriptor-reg))
798 (index :scs (any-reg immediate))
799 (value :scs (complex-double-reg) :target result))
800 (:arg-types * positive-fixnum complex-double-float)
801 (:temporary (:sc unsigned-reg) tmp)
802 (:results (result :scs (complex-double-reg)))
803 (:result-types complex-double-float)
805 (loadw tmp object 0 instance-pointer-lowtag)
806 (inst shr tmp n-widetag-bits)
807 (when (sc-is index any-reg)
809 (inst sub tmp index))
810 (let ((value-real (complex-double-reg-real-tn value))
811 (result-real (complex-double-reg-real-tn result)))
812 (cond ((zerop (tn-offset value-real))
814 (inst fstd (make-ea-for-raw-slot object index tmp 4))
815 (unless (zerop (tn-offset result-real))
816 ;; Value is in ST0 but not result.
817 (inst fstd result-real)))
819 ;; Value is not in ST0.
820 (inst fxch value-real)
821 (inst fstd (make-ea-for-raw-slot object index tmp 4))
822 (cond ((zerop (tn-offset result-real))
823 ;; The result is in ST0.
824 (inst fstd value-real))
826 ;; Neither value or result are in ST0
827 (unless (location= value-real result-real)
828 (inst fstd result-real))
829 (inst fxch value-real))))))
830 (let ((value-imag (complex-double-reg-imag-tn value))
831 (result-imag (complex-double-reg-imag-tn result)))
832 (inst fxch value-imag)
833 (inst fstd (make-ea-for-raw-slot object index tmp 2))
834 (unless (location= value-imag result-imag)
835 (inst fstd result-imag))
836 (inst fxch value-imag))))
838 (define-vop (raw-instance-init/complex-double)
839 (:args (object :scs (descriptor-reg))
840 (value :scs (complex-double-reg)))
841 (:arg-types * complex-double-float)
842 (:info instance-length index)
844 (let ((value-real (complex-double-reg-real-tn value)))
845 (with-tn@fp-top (value-real)
846 (inst fstd (make-ea-for-raw-slot object index instance-length 4))))
847 (let ((value-imag (complex-double-reg-imag-tn value)))
848 (with-tn@fp-top (value-imag)
849 (inst fstd (make-ea-for-raw-slot object index instance-length 2))))))