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)))
200 (:temporary (:sc descriptor-reg #+nil(:from (:argument 0))) value)
202 (let ((check-unbound-label (gen-label)))
203 (loadw value object symbol-tls-index-slot other-pointer-lowtag)
204 (inst mov value (make-ea :dword :base value) :fs)
205 (inst cmp value no-tls-value-marker-widetag)
206 (inst jmp :ne check-unbound-label)
207 (loadw value object symbol-value-slot other-pointer-lowtag)
208 (emit-label check-unbound-label)
209 (inst cmp value unbound-marker-widetag))))
215 (:args (object :scs (descriptor-reg)))
218 (inst cmp (make-ea-for-object-slot object symbol-value-slot
219 other-pointer-lowtag)
220 unbound-marker-widetag)))
223 (define-vop (symbol-hash)
225 (:translate symbol-hash)
226 (:args (symbol :scs (descriptor-reg)))
227 (:results (res :scs (any-reg)))
228 (:result-types positive-fixnum)
230 ;; The symbol-hash slot of NIL holds NIL because it is also the
231 ;; cdr slot, so we have to strip off the two low bits to make sure
232 ;; it is a fixnum. The lowtag selection magic that is required to
233 ;; ensure this is explained in the comment in objdef.lisp
234 (loadw res symbol symbol-hash-slot other-pointer-lowtag)
235 (inst and res (lognot #b11))))
237 ;;;; fdefinition (FDEFN) objects
239 (define-vop (fdefn-fun cell-ref) ; /pfw - alpha
240 (:variant fdefn-fun-slot other-pointer-lowtag))
242 (define-vop (safe-fdefn-fun)
243 (:args (object :scs (descriptor-reg) :to (:result 1)))
244 (:results (value :scs (descriptor-reg any-reg)))
246 (:save-p :compute-only)
248 (loadw value object fdefn-fun-slot other-pointer-lowtag)
249 (inst cmp value nil-value)
250 (let ((err-lab (generate-error-code vop 'undefined-fun-error object)))
251 (inst jmp :e err-lab))))
253 (define-vop (set-fdefn-fun)
255 (:translate (setf fdefn-fun))
256 (:args (function :scs (descriptor-reg) :target result)
257 (fdefn :scs (descriptor-reg)))
258 (:temporary (:sc unsigned-reg) raw)
259 (:temporary (:sc byte-reg) type)
260 (:results (result :scs (descriptor-reg)))
262 (load-type type function (- fun-pointer-lowtag))
264 (make-ea-for-object-slot function simple-fun-code-offset
266 (inst cmp type simple-fun-header-widetag)
267 (inst jmp :e normal-fn)
268 (inst lea raw (make-fixup "closure_tramp" :foreign))
270 (storew function fdefn fdefn-fun-slot other-pointer-lowtag)
271 (storew raw fdefn fdefn-raw-addr-slot other-pointer-lowtag)
272 (move result function)))
274 (define-vop (fdefn-makunbound)
276 (:translate fdefn-makunbound)
277 (:args (fdefn :scs (descriptor-reg) :target result))
278 (:results (result :scs (descriptor-reg)))
280 (storew nil-value fdefn fdefn-fun-slot other-pointer-lowtag)
281 (storew (make-fixup "undefined_tramp" :foreign)
282 fdefn fdefn-raw-addr-slot other-pointer-lowtag)
283 (move result fdefn)))
285 ;;;; binding and unbinding
287 ;;; BIND -- Establish VAL as a binding for SYMBOL. Save the old value and
288 ;;; the symbol on the binding stack and stuff the new value into the
291 ;;; FIXME: Split into DYNBIND and BIND: DYNBIND needs to ensure
292 ;;; TLS-INDEX, whereas BIND should assume it is already in place. Make
293 ;;; LET &co compile into BIND, and PROGV into DYNBIND, plus ensure
294 ;;; TLS-INDEX at compile-time, and make loader and dumper preserve
295 ;;; the existence of a TLS-INDEX.
298 (:args (val :scs (any-reg descriptor-reg))
299 (symbol :scs (descriptor-reg)))
300 (:temporary (:sc unsigned-reg) tls-index bsp)
302 (let ((tls-index-valid (gen-label)))
303 (load-binding-stack-pointer bsp)
304 (loadw tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
305 (inst add bsp (* binding-size n-word-bytes))
306 (store-binding-stack-pointer bsp)
307 (inst or tls-index tls-index)
308 (inst jmp :ne tls-index-valid)
309 (inst mov tls-index symbol)
310 (inst call (make-fixup
311 (ecase (tn-offset tls-index)
312 (#.eax-offset 'alloc-tls-index-in-eax)
313 (#.ebx-offset 'alloc-tls-index-in-ebx)
314 (#.ecx-offset 'alloc-tls-index-in-ecx)
315 (#.edx-offset 'alloc-tls-index-in-edx)
316 (#.edi-offset 'alloc-tls-index-in-edi)
317 (#.esi-offset 'alloc-tls-index-in-esi))
319 (emit-label tls-index-valid)
320 (inst push (make-ea :dword :base tls-index) :fs)
321 (popw bsp (- binding-value-slot binding-size))
322 (storew symbol bsp (- binding-symbol-slot binding-size))
323 (inst mov (make-ea :dword :base tls-index) val :fs))))
327 (:args (val :scs (any-reg descriptor-reg))
328 (symbol :scs (descriptor-reg)))
329 (:temporary (:sc unsigned-reg) temp bsp)
331 (load-symbol-value bsp *binding-stack-pointer*)
332 (loadw temp symbol symbol-value-slot other-pointer-lowtag)
333 (inst add bsp (* binding-size n-word-bytes))
334 (store-symbol-value bsp *binding-stack-pointer*)
335 (storew temp bsp (- binding-value-slot binding-size))
336 (storew symbol bsp (- binding-symbol-slot binding-size))
337 (storew val symbol symbol-value-slot other-pointer-lowtag)))
341 (:temporary (:sc unsigned-reg) temp bsp tls-index)
343 (load-binding-stack-pointer bsp)
344 ;; Load SYMBOL from stack, and get the TLS-INDEX.
345 (loadw temp bsp (- binding-symbol-slot binding-size))
346 (loadw tls-index temp symbol-tls-index-slot other-pointer-lowtag)
347 ;; Load VALUE from stack, then restore it to the TLS area.
348 (loadw temp bsp (- binding-value-slot binding-size))
349 (inst mov (make-ea :dword :base tls-index) temp :fs)
350 ;; Zero out the stack.
351 (storew 0 bsp (- binding-symbol-slot binding-size))
352 (storew 0 bsp (- binding-value-slot binding-size))
353 (inst sub bsp (* binding-size n-word-bytes))
354 (store-binding-stack-pointer bsp)))
358 (:temporary (:sc unsigned-reg) symbol value bsp)
360 (load-symbol-value bsp *binding-stack-pointer*)
361 (loadw symbol bsp (- binding-symbol-slot binding-size))
362 (loadw value bsp (- binding-value-slot binding-size))
363 (storew value symbol symbol-value-slot other-pointer-lowtag)
364 (storew 0 bsp (- binding-symbol-slot binding-size))
365 (storew 0 bsp (- binding-value-slot binding-size))
366 (inst sub bsp (* binding-size n-word-bytes))
367 (store-symbol-value bsp *binding-stack-pointer*)))
370 (define-vop (unbind-to-here)
371 (:args (where :scs (descriptor-reg any-reg)))
372 (:temporary (:sc unsigned-reg) symbol value bsp #!+sb-thread tls-index)
374 (load-binding-stack-pointer bsp)
379 (loadw symbol bsp (- binding-symbol-slot binding-size))
380 (inst or symbol symbol)
382 ;; Bind stack debug sentinels have the unbound marker in the symbol slot
383 (inst cmp symbol unbound-marker-widetag)
385 (loadw value bsp (- binding-value-slot binding-size))
386 #!-sb-thread (storew value symbol symbol-value-slot other-pointer-lowtag)
389 tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
390 #!+sb-thread (inst mov (make-ea :dword :base tls-index) value :fs)
391 (storew 0 bsp (- binding-symbol-slot binding-size))
394 (storew 0 bsp (- binding-value-slot binding-size))
395 (inst sub bsp (* binding-size n-word-bytes))
398 (store-binding-stack-pointer bsp)
402 (define-vop (bind-sentinel)
403 (:temporary (:sc unsigned-reg) bsp)
405 (load-binding-stack-pointer bsp)
406 (inst add bsp (* binding-size n-word-bytes))
407 (storew unbound-marker-widetag bsp (- binding-symbol-slot binding-size))
408 (storew ebp-tn bsp (- binding-value-slot binding-size))
409 (store-binding-stack-pointer bsp)))
411 (define-vop (unbind-sentinel)
412 (:temporary (:sc unsigned-reg) bsp)
414 (load-binding-stack-pointer bsp)
415 (storew 0 bsp (- binding-value-slot binding-size))
416 (storew 0 bsp (- binding-symbol-slot binding-size))
417 (inst sub bsp (* binding-size n-word-bytes))
418 (store-binding-stack-pointer bsp)))
422 ;;;; closure indexing
424 (define-full-reffer closure-index-ref *
425 closure-info-offset fun-pointer-lowtag
426 (any-reg descriptor-reg) * %closure-index-ref)
428 (define-full-setter set-funcallable-instance-info *
429 funcallable-instance-info-offset fun-pointer-lowtag
430 (any-reg descriptor-reg) * %set-funcallable-instance-info)
432 (define-full-reffer funcallable-instance-info *
433 funcallable-instance-info-offset fun-pointer-lowtag
434 (descriptor-reg any-reg) * %funcallable-instance-info)
436 (define-vop (closure-ref slot-ref)
437 (:variant closure-info-offset fun-pointer-lowtag))
439 (define-vop (closure-init slot-set)
440 (:variant closure-info-offset fun-pointer-lowtag))
442 ;;;; value cell hackery
444 (define-vop (value-cell-ref cell-ref)
445 (:variant value-cell-value-slot other-pointer-lowtag))
447 (define-vop (value-cell-set cell-set)
448 (:variant value-cell-value-slot other-pointer-lowtag))
450 ;;;; structure hackery
452 (define-vop (instance-length)
454 (:translate %instance-length)
455 (:args (struct :scs (descriptor-reg)))
456 (:results (res :scs (unsigned-reg)))
457 (:result-types positive-fixnum)
459 (loadw res struct 0 instance-pointer-lowtag)
460 (inst shr res n-widetag-bits)))
462 (define-full-reffer instance-index-ref *
463 instance-slots-offset instance-pointer-lowtag
464 (any-reg descriptor-reg) *
467 (define-full-setter instance-index-set *
468 instance-slots-offset instance-pointer-lowtag
469 (any-reg descriptor-reg) *
472 (define-full-compare-and-swap %compare-and-swap-instance-ref instance
473 instance-slots-offset instance-pointer-lowtag
474 (any-reg descriptor-reg) *
475 %compare-and-swap-instance-ref)
477 ;;;; code object frobbing
479 (define-full-reffer code-header-ref * 0 other-pointer-lowtag
480 (any-reg descriptor-reg) * code-header-ref)
482 (define-full-setter code-header-set * 0 other-pointer-lowtag
483 (any-reg descriptor-reg) * code-header-set)
485 ;;;; raw instance slot accessors
487 (defun make-ea-for-raw-slot (object index instance-length n-words)
488 (if (integerp instance-length)
489 ;; For RAW-INSTANCE-INIT/* VOPs, which know the exact instance length
493 :disp (- (* (- instance-length instance-slots-offset index (1- n-words))
495 instance-pointer-lowtag))
496 (flet ((make-ea-using-value (value)
497 (make-ea :dword :base object
498 :index instance-length
500 :disp (- (* (- instance-slots-offset n-words)
502 instance-pointer-lowtag
503 (* value n-word-bytes)))))
504 (if (typep index 'tn)
506 (any-reg (make-ea :dword
508 :index instance-length
509 :disp (- (* (- instance-slots-offset n-words)
511 instance-pointer-lowtag)))
512 (immediate (make-ea-using-value (tn-value index))))
513 (make-ea-using-value index)))))
515 (define-vop (raw-instance-ref/word)
516 (:translate %raw-instance-ref/word)
518 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
519 (:arg-types * tagged-num)
520 (:temporary (:sc unsigned-reg) tmp)
521 (:results (value :scs (unsigned-reg)))
522 (:result-types unsigned-num)
524 (loadw tmp object 0 instance-pointer-lowtag)
525 (inst shr tmp n-widetag-bits)
526 (when (sc-is index any-reg)
528 (inst sub tmp index))
529 (inst mov value (make-ea-for-raw-slot object index tmp 1))))
531 (define-vop (raw-instance-set/word)
532 (:translate %raw-instance-set/word)
534 (:args (object :scs (descriptor-reg))
535 (index :scs (any-reg immediate))
536 (value :scs (unsigned-reg) :target result))
537 (:arg-types * tagged-num unsigned-num)
538 (:temporary (:sc unsigned-reg) tmp)
539 (:results (result :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 (make-ea-for-raw-slot object index tmp 1) value)
548 (move result value)))
550 (define-vop (raw-instance-init/word)
551 (:args (object :scs (descriptor-reg))
552 (value :scs (unsigned-reg)))
553 (:arg-types * unsigned-num)
554 (:info instance-length index)
556 (inst mov (make-ea-for-raw-slot object index instance-length 1) value)))
558 (define-vop (raw-instance-atomic-incf/word)
559 (:translate %raw-instance-atomic-incf/word)
561 (:args (object :scs (descriptor-reg))
562 (index :scs (any-reg immediate))
563 (diff :scs (signed-reg) :target result))
564 (:arg-types * tagged-num signed-num)
565 (:temporary (:sc unsigned-reg) tmp)
566 (:results (result :scs (unsigned-reg)))
567 (:result-types unsigned-num)
569 (loadw tmp object 0 instance-pointer-lowtag)
570 (inst shr tmp n-widetag-bits)
571 (when (sc-is index any-reg)
573 (inst sub tmp index))
574 (inst xadd (make-ea-for-raw-slot object index tmp 1) diff :lock)
577 (define-vop (raw-instance-ref/single)
578 (:translate %raw-instance-ref/single)
580 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
581 (:arg-types * tagged-num)
582 (:temporary (:sc unsigned-reg) tmp)
583 (:results (value :scs (single-reg)))
584 (:result-types single-float)
586 (loadw tmp object 0 instance-pointer-lowtag)
587 (inst shr tmp n-widetag-bits)
588 (when (sc-is index any-reg)
590 (inst sub tmp index))
591 (with-empty-tn@fp-top(value)
592 (inst fld (make-ea-for-raw-slot object index tmp 1)))))
594 (define-vop (raw-instance-set/single)
595 (:translate %raw-instance-set/single)
597 (:args (object :scs (descriptor-reg))
598 (index :scs (any-reg immediate))
599 (value :scs (single-reg) :target result))
600 (:arg-types * tagged-num single-float)
601 (:temporary (:sc unsigned-reg) tmp)
602 (:results (result :scs (single-reg)))
603 (:result-types single-float)
605 (loadw tmp object 0 instance-pointer-lowtag)
606 (inst shr tmp n-widetag-bits)
607 (when (sc-is index any-reg)
609 (inst sub tmp index))
610 (unless (zerop (tn-offset value))
612 (inst fst (make-ea-for-raw-slot object index tmp 1))
614 ((zerop (tn-offset value))
615 (unless (zerop (tn-offset result))
617 ((zerop (tn-offset result))
620 (unless (location= value result)
622 (inst fxch value)))))
624 (define-vop (raw-instance-init/single)
625 (:args (object :scs (descriptor-reg))
626 (value :scs (single-reg)))
627 (:arg-types * single-float)
628 (:info instance-length index)
630 (with-tn@fp-top (value)
631 (inst fst (make-ea-for-raw-slot object index instance-length 1)))))
633 (define-vop (raw-instance-ref/double)
634 (:translate %raw-instance-ref/double)
636 (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
637 (:arg-types * tagged-num)
638 (:temporary (:sc unsigned-reg) tmp)
639 (:results (value :scs (double-reg)))
640 (:result-types double-float)
642 (loadw tmp object 0 instance-pointer-lowtag)
643 (inst shr tmp n-widetag-bits)
644 (when (sc-is index any-reg)
646 (inst sub tmp index))
647 (with-empty-tn@fp-top(value)
648 (inst fldd (make-ea-for-raw-slot object index tmp 2)))))
650 (define-vop (raw-instance-set/double)
651 (:translate %raw-instance-set/double)
653 (:args (object :scs (descriptor-reg))
654 (index :scs (any-reg immediate))
655 (value :scs (double-reg) :target result))
656 (:arg-types * tagged-num double-float)
657 (:temporary (:sc unsigned-reg) tmp)
658 (:results (result :scs (double-reg)))
659 (:result-types double-float)
661 (loadw tmp object 0 instance-pointer-lowtag)
662 (inst shr tmp n-widetag-bits)
663 (when (sc-is index any-reg)
665 (inst sub tmp index))
666 (unless (zerop (tn-offset value))
668 (inst fstd (make-ea-for-raw-slot object index tmp 2))
670 ((zerop (tn-offset value))
671 (unless (zerop (tn-offset result))
673 ((zerop (tn-offset result))
676 (unless (location= value result)
678 (inst fxch value)))))
680 (define-vop (raw-instance-init/double)
681 (:args (object :scs (descriptor-reg))
682 (value :scs (double-reg)))
683 (:arg-types * double-float)
684 (:info instance-length index)
686 (with-tn@fp-top (value)
687 (inst fstd (make-ea-for-raw-slot object index instance-length 2)))))
689 (define-vop (raw-instance-ref/complex-single)
690 (:translate %raw-instance-ref/complex-single)
692 (:args (object :scs (descriptor-reg))
693 (index :scs (any-reg immediate)))
694 (:arg-types * positive-fixnum)
695 (:temporary (:sc unsigned-reg) tmp)
696 (:results (value :scs (complex-single-reg)))
697 (:result-types complex-single-float)
699 (loadw tmp object 0 instance-pointer-lowtag)
700 (inst shr tmp n-widetag-bits)
701 (when (sc-is index any-reg)
703 (inst sub tmp index))
704 (let ((real-tn (complex-single-reg-real-tn value)))
705 (with-empty-tn@fp-top (real-tn)
706 (inst fld (make-ea-for-raw-slot object index tmp 2))))
707 (let ((imag-tn (complex-single-reg-imag-tn value)))
708 (with-empty-tn@fp-top (imag-tn)
709 (inst fld (make-ea-for-raw-slot object index tmp 1))))))
711 (define-vop (raw-instance-set/complex-single)
712 (:translate %raw-instance-set/complex-single)
714 (:args (object :scs (descriptor-reg))
715 (index :scs (any-reg immediate))
716 (value :scs (complex-single-reg) :target result))
717 (:arg-types * positive-fixnum complex-single-float)
718 (:temporary (:sc unsigned-reg) tmp)
719 (:results (result :scs (complex-single-reg)))
720 (:result-types complex-single-float)
722 (loadw tmp object 0 instance-pointer-lowtag)
723 (inst shr tmp n-widetag-bits)
724 (when (sc-is index any-reg)
726 (inst sub tmp index))
727 (let ((value-real (complex-single-reg-real-tn value))
728 (result-real (complex-single-reg-real-tn result)))
729 (cond ((zerop (tn-offset value-real))
731 (inst fst (make-ea-for-raw-slot object index tmp 2))
732 (unless (zerop (tn-offset result-real))
733 ;; Value is in ST0 but not result.
734 (inst fst result-real)))
736 ;; Value is not in ST0.
737 (inst fxch value-real)
738 (inst fst (make-ea-for-raw-slot object index tmp 2))
739 (cond ((zerop (tn-offset result-real))
740 ;; The result is in ST0.
741 (inst fst value-real))
743 ;; Neither value or result are in ST0
744 (unless (location= value-real result-real)
745 (inst fst result-real))
746 (inst fxch value-real))))))
747 (let ((value-imag (complex-single-reg-imag-tn value))
748 (result-imag (complex-single-reg-imag-tn result)))
749 (inst fxch value-imag)
750 (inst fst (make-ea-for-raw-slot object index tmp 1))
751 (unless (location= value-imag result-imag)
752 (inst fst result-imag))
753 (inst fxch value-imag))))
755 (define-vop (raw-instance-init/complex-single)
756 (:args (object :scs (descriptor-reg))
757 (value :scs (complex-single-reg)))
758 (:arg-types * complex-single-float)
759 (:info instance-length index)
761 (let ((value-real (complex-single-reg-real-tn value)))
762 (with-tn@fp-top (value-real)
763 (inst fst (make-ea-for-raw-slot object index instance-length 2))))
764 (let ((value-imag (complex-single-reg-imag-tn value)))
765 (with-tn@fp-top (value-imag)
766 (inst fst (make-ea-for-raw-slot object index instance-length 1))))))
768 (define-vop (raw-instance-ref/complex-double)
769 (:translate %raw-instance-ref/complex-double)
771 (:args (object :scs (descriptor-reg))
772 (index :scs (any-reg immediate)))
773 (:arg-types * positive-fixnum)
774 (:temporary (:sc unsigned-reg) tmp)
775 (:results (value :scs (complex-double-reg)))
776 (:result-types complex-double-float)
778 (loadw tmp object 0 instance-pointer-lowtag)
779 (inst shr tmp n-widetag-bits)
780 (when (sc-is index any-reg)
782 (inst sub tmp index))
783 (let ((real-tn (complex-double-reg-real-tn value)))
784 (with-empty-tn@fp-top (real-tn)
785 (inst fldd (make-ea-for-raw-slot object index tmp 4))))
786 (let ((imag-tn (complex-double-reg-imag-tn value)))
787 (with-empty-tn@fp-top (imag-tn)
788 (inst fldd (make-ea-for-raw-slot object index tmp 2))))))
790 (define-vop (raw-instance-set/complex-double)
791 (:translate %raw-instance-set/complex-double)
793 (:args (object :scs (descriptor-reg))
794 (index :scs (any-reg immediate))
795 (value :scs (complex-double-reg) :target result))
796 (:arg-types * positive-fixnum complex-double-float)
797 (:temporary (:sc unsigned-reg) tmp)
798 (:results (result :scs (complex-double-reg)))
799 (:result-types complex-double-float)
801 (loadw tmp object 0 instance-pointer-lowtag)
802 (inst shr tmp n-widetag-bits)
803 (when (sc-is index any-reg)
805 (inst sub tmp index))
806 (let ((value-real (complex-double-reg-real-tn value))
807 (result-real (complex-double-reg-real-tn result)))
808 (cond ((zerop (tn-offset value-real))
810 (inst fstd (make-ea-for-raw-slot object index tmp 4))
811 (unless (zerop (tn-offset result-real))
812 ;; Value is in ST0 but not result.
813 (inst fstd result-real)))
815 ;; Value is not in ST0.
816 (inst fxch value-real)
817 (inst fstd (make-ea-for-raw-slot object index tmp 4))
818 (cond ((zerop (tn-offset result-real))
819 ;; The result is in ST0.
820 (inst fstd value-real))
822 ;; Neither value or result are in ST0
823 (unless (location= value-real result-real)
824 (inst fstd result-real))
825 (inst fxch value-real))))))
826 (let ((value-imag (complex-double-reg-imag-tn value))
827 (result-imag (complex-double-reg-imag-tn result)))
828 (inst fxch value-imag)
829 (inst fstd (make-ea-for-raw-slot object index tmp 2))
830 (unless (location= value-imag result-imag)
831 (inst fstd result-imag))
832 (inst fxch value-imag))))
834 (define-vop (raw-instance-init/complex-double)
835 (:args (object :scs (descriptor-reg))
836 (value :scs (complex-double-reg)))
837 (:arg-types * complex-double-float)
838 (:info instance-length index)
840 (let ((value-real (complex-double-reg-real-tn value)))
841 (with-tn@fp-top (value-real)
842 (inst fstd (make-ea-for-raw-slot object index instance-length 4))))
843 (let ((value-imag (complex-double-reg-imag-tn value)))
844 (with-tn@fp-top (value-imag)
845 (inst fstd (make-ea-for-raw-slot object index instance-length 2))))))