src/compiler/x86-64/cell.lisp

   1 ;;;; various primitive memory access VOPs for the x86 VM
   2
   3 ;;;; This software is part of the SBCL system. See the README file for
   4 ;;;; more information.
   5 ;;;;
   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.
  11
  12 (in-package "SB!VM")
  13 \f
  14 ;;;; data object ref/set stuff
  15
  16 (define-vop (slot)
  17   (:args (object :scs (descriptor-reg)))
  18   (:info name offset lowtag)
  19   (:ignore name)
  20   (:results (result :scs (descriptor-reg any-reg)))
  21   (:generator 1
  22     (loadw result object offset lowtag)))
  23
  24 (define-vop (set-slot)
  25   (:args (object :scs (descriptor-reg))
  26          (value :scs (descriptor-reg any-reg immediate)))
  27   (:temporary (:sc descriptor-reg) temp)
  28   (:info name offset lowtag)
  29   (:ignore name)
  30   (:results)
  31   (:generator 1
  32     (if (sc-is value immediate)
  33         (let ((val (tn-value value)))
  34           (move-immediate (make-ea :qword
  35                                    :base object
  36                                    :disp (- (* offset n-word-bytes)
  37                                             lowtag))
  38                           (etypecase val
  39                             (integer
  40                              (fixnumize val))
  41                             (symbol
  42                              (+ nil-value (static-symbol-offset val)))
  43                             (character
  44                              (logior (ash (char-code val) n-widetag-bits)
  45                                      character-widetag)))
  46                           temp))
  47         ;; Else, value not immediate.
  48         (storew value object offset lowtag))))
  49
  50 (define-vop (compare-and-swap-slot)
  51   (:args (object :scs (descriptor-reg) :to :eval)
  52          (old :scs (descriptor-reg any-reg) :target rax)
  53          (new :scs (descriptor-reg any-reg)))
  54   (:temporary (:sc descriptor-reg :offset rax-offset
  55                    :from (:argument 1) :to :result :target result)
  56               rax)
  57   (:info name offset lowtag)
  58   (:ignore name)
  59   (:results (result :scs (descriptor-reg any-reg)))
  60   (:generator 5
  61      (move rax old)
  62      #!+sb-thread
  63      (inst lock)
  64      (inst cmpxchg (make-ea :qword :base object
  65                             :disp (- (* offset n-word-bytes) lowtag))
  66            new)
  67      (move result rax)))
  68 \f
  69 ;;;; symbol hacking VOPs
  70
  71 (define-vop (%compare-and-swap-symbol-value)
  72   (:translate %compare-and-swap-symbol-value)
  73   (:args (symbol :scs (descriptor-reg) :to (:result 1))
  74          (old :scs (descriptor-reg any-reg) :target rax)
  75          (new :scs (descriptor-reg any-reg)))
  76   (:temporary (:sc descriptor-reg :offset rax-offset) rax)
  77   #!+sb-thread
  78   (:temporary (:sc descriptor-reg) tls)
  79   (:results (result :scs (descriptor-reg any-reg)))
  80   (:policy :fast-safe)
  81   (:vop-var vop)
  82   (:generator 15
  83     ;; This code has to pathological cases: NO-TLS-VALUE-MARKER
  84     ;; or UNBOUND-MARKER as NEW: in either case we would end up
  85     ;; doing possible damage with CMPXCHG -- so don't do that!
  86     (let ((unbound (generate-error-code vop unbound-symbol-error symbol))
  87           (check (gen-label)))
  88       (move rax old)
  89       #!+sb-thread
  90       (progn
  91         (loadw tls symbol symbol-tls-index-slot other-pointer-lowtag)
  92         ;; Thread-local area, not LOCK needed.
  93         (inst cmpxchg (make-ea :qword :base thread-base-tn
  94                                :index tls :scale 1)
  95               new)
  96         (inst cmp rax no-tls-value-marker-widetag)
  97         (inst jmp :ne check)
  98         (move rax old)
  99         (inst lock))
 100       (inst cmpxchg (make-ea :qword :base symbol
 101                              :disp (- (* symbol-value-slot n-word-bytes)
 102                                       other-pointer-lowtag)
 103                              :scale 1)
 104             new)
 105       (emit-label check)
 106       (move result rax)
 107       (inst cmp result unbound-marker-widetag)
 108       (inst jmp :e unbound))))
 109
 110 ;;; these next two cf the sparc version, by jrd.
 111 ;;; FIXME: Deref this ^ reference.
 112
 113
 114 ;;; The compiler likes to be able to directly SET symbols.
 115 #!+sb-thread
 116 (define-vop (set)
 117   (:args (symbol :scs (descriptor-reg))
 118          (value :scs (descriptor-reg any-reg)))
 119   (:temporary (:sc descriptor-reg) tls)
 120   ;;(:policy :fast-safe)
 121   (:generator 4
 122     (let ((global-val (gen-label))
 123           (done (gen-label)))
 124       (loadw tls symbol symbol-tls-index-slot other-pointer-lowtag)
 125       (inst or tls tls)
 126       (inst jmp :z global-val)
 127       (inst cmp (make-ea :qword :base thread-base-tn :scale 1 :index tls)
 128             no-tls-value-marker-widetag)
 129       (inst jmp :z global-val)
 130       (inst mov (make-ea :qword :base thread-base-tn :scale 1 :index tls)
 131             value)
 132       (inst jmp done)
 133       (emit-label global-val)
 134       (storew value symbol symbol-value-slot other-pointer-lowtag)
 135       (emit-label done))))
 136
 137 ;; unithreaded it's a lot simpler ...
 138 #!-sb-thread
 139 (define-vop (set cell-set)
 140   (:variant symbol-value-slot other-pointer-lowtag))
 141
 142 ;;; With Symbol-Value, we check that the value isn't the trap object. So
 143 ;;; Symbol-Value of NIL is NIL.
 144 #!+sb-thread
 145 (define-vop (symbol-value)
 146   (:translate symbol-value)
 147   (:policy :fast-safe)
 148   (:args (object :scs (descriptor-reg) :to (:result 1)))
 149   (:results (value :scs (descriptor-reg any-reg)))
 150   (:vop-var vop)
 151   (:save-p :compute-only)
 152   (:generator 9
 153     (let* ((check-unbound-label (gen-label))
 154            (err-lab (generate-error-code vop unbound-symbol-error object))
 155            (ret-lab (gen-label)))
 156       (loadw value object symbol-tls-index-slot other-pointer-lowtag)
 157       (inst mov value (make-ea :qword :base thread-base-tn
 158                                :index value :scale 1))
 159       (inst cmp value no-tls-value-marker-widetag)
 160       (inst jmp :ne check-unbound-label)
 161       (loadw value object symbol-value-slot other-pointer-lowtag)
 162       (emit-label check-unbound-label)
 163       (inst cmp value unbound-marker-widetag)
 164       (inst jmp :e err-lab)
 165       (emit-label ret-lab))))
 166
 167 #!+sb-thread
 168 (define-vop (fast-symbol-value symbol-value)
 169   ;; KLUDGE: not really fast, in fact, because we're going to have to
 170   ;; do a full lookup of the thread-local area anyway.  But half of
 171   ;; the meaning of FAST-SYMBOL-VALUE is "do not signal an error if
 172   ;; unbound", which is used in the implementation of COPY-SYMBOL.  --
 173   ;; CSR, 2003-04-22
 174   (:policy :fast)
 175   (:translate symbol-value)
 176   (:generator 8
 177     (let ((ret-lab (gen-label)))
 178       (loadw value object symbol-tls-index-slot other-pointer-lowtag)
 179       (inst mov value
 180             (make-ea :qword :base thread-base-tn :index value :scale 1))
 181       (inst cmp value no-tls-value-marker-widetag)
 182       (inst jmp :ne ret-lab)
 183       (loadw value object symbol-value-slot other-pointer-lowtag)
 184       (emit-label ret-lab))))
 185
 186 #!-sb-thread
 187 (define-vop (symbol-value)
 188   (:translate symbol-value)
 189   (:policy :fast-safe)
 190   (:args (object :scs (descriptor-reg) :to (:result 1)))
 191   (:results (value :scs (descriptor-reg any-reg)))
 192   (:vop-var vop)
 193   (:save-p :compute-only)
 194   (:generator 9
 195     (let ((err-lab (generate-error-code vop unbound-symbol-error object)))
 196       (loadw value object symbol-value-slot other-pointer-lowtag)
 197       (inst cmp value unbound-marker-widetag)
 198       (inst jmp :e err-lab))))
 199
 200 #!-sb-thread
 201 (define-vop (fast-symbol-value cell-ref)
 202   (:variant symbol-value-slot other-pointer-lowtag)
 203   (:policy :fast)
 204   (:translate symbol-value))
 205
 206 (defknown locked-symbol-global-value-add (symbol fixnum) fixnum ())
 207
 208 (define-vop (locked-symbol-global-value-add)
 209     (:args (object :scs (descriptor-reg) :to :result)
 210            (value :scs (any-reg) :target result))
 211   (:arg-types * tagged-num)
 212   (:results (result :scs (any-reg) :from (:argument 1)))
 213   (:policy :fast)
 214   (:translate locked-symbol-global-value-add)
 215   (:result-types tagged-num)
 216   (:policy :fast-safe)
 217   (:generator 4
 218     (move result value)
 219     (inst lock)
 220     (inst add (make-ea :qword :base object
 221                        :disp (- (* symbol-value-slot n-word-bytes)
 222                                 other-pointer-lowtag))
 223           value)))
 224
 225 #!+sb-thread
 226 (define-vop (boundp)
 227   (:translate boundp)
 228   (:policy :fast-safe)
 229   (:args (object :scs (descriptor-reg)))
 230   (:conditional)
 231   (:info target not-p)
 232   (:temporary (:sc descriptor-reg #+nil(:from (:argument 0))) value)
 233   (:generator 9
 234     (let ((check-unbound-label (gen-label)))
 235       (loadw value object symbol-tls-index-slot other-pointer-lowtag)
 236       (inst mov value
 237             (make-ea :qword :base thread-base-tn :index value :scale 1))
 238       (inst cmp value no-tls-value-marker-widetag)
 239       (inst jmp :ne check-unbound-label)
 240       (loadw value object symbol-value-slot other-pointer-lowtag)
 241       (emit-label check-unbound-label)
 242       (inst cmp value unbound-marker-widetag)
 243       (inst jmp (if not-p :e :ne) target))))
 244
 245 #!-sb-thread
 246 (define-vop (boundp)
 247   (:translate boundp)
 248   (:policy :fast-safe)
 249   (:args (object :scs (descriptor-reg)))
 250   (:conditional)
 251   (:info target not-p)
 252   (:generator 9
 253     (inst cmp (make-ea-for-object-slot object symbol-value-slot
 254                                        other-pointer-lowtag)
 255           unbound-marker-widetag)
 256     (inst jmp (if not-p :e :ne) target)))
 257
 258
 259 (define-vop (symbol-hash)
 260   (:policy :fast-safe)
 261   (:translate symbol-hash)
 262   (:args (symbol :scs (descriptor-reg)))
 263   (:results (res :scs (any-reg)))
 264   (:result-types positive-fixnum)
 265   (:generator 2
 266     ;; The symbol-hash slot of NIL holds NIL because it is also the
 267     ;; cdr slot, so we have to strip off the three low bits to make sure
 268     ;; it is a fixnum.  The lowtag selection magic that is required to
 269     ;; ensure this is explained in the comment in objdef.lisp
 270     (loadw res symbol symbol-hash-slot other-pointer-lowtag)
 271     (inst and res (lognot #b111))))
 272 \f
 273 ;;;; fdefinition (FDEFN) objects
 274
 275 (define-vop (fdefn-fun cell-ref)        ; /pfw - alpha
 276   (:variant fdefn-fun-slot other-pointer-lowtag))
 277
 278 (define-vop (safe-fdefn-fun)
 279   (:args (object :scs (descriptor-reg) :to (:result 1)))
 280   (:results (value :scs (descriptor-reg any-reg)))
 281   (:vop-var vop)
 282   (:save-p :compute-only)
 283   (:generator 10
 284     (loadw value object fdefn-fun-slot other-pointer-lowtag)
 285     (inst cmp value nil-value)
 286     (let ((err-lab (generate-error-code vop undefined-fun-error object)))
 287       (inst jmp :e err-lab))))
 288
 289 (define-vop (set-fdefn-fun)
 290   (:policy :fast-safe)
 291   (:translate (setf fdefn-fun))
 292   (:args (function :scs (descriptor-reg) :target result)
 293          (fdefn :scs (descriptor-reg)))
 294   (:temporary (:sc unsigned-reg) raw)
 295   (:temporary (:sc byte-reg) type)
 296   (:results (result :scs (descriptor-reg)))
 297   (:generator 38
 298     (load-type type function (- fun-pointer-lowtag))
 299     (inst lea raw
 300           (make-ea :byte :base function
 301                    :disp (- (* simple-fun-code-offset n-word-bytes)
 302                             fun-pointer-lowtag)))
 303     (inst cmp type simple-fun-header-widetag)
 304     (inst jmp :e NORMAL-FUN)
 305     (inst lea raw (make-fixup "closure_tramp" :foreign))
 306     NORMAL-FUN
 307     (storew function fdefn fdefn-fun-slot other-pointer-lowtag)
 308     (storew raw fdefn fdefn-raw-addr-slot other-pointer-lowtag)
 309     (move result function)))
 310
 311 (define-vop (fdefn-makunbound)
 312   (:policy :fast-safe)
 313   (:translate fdefn-makunbound)
 314   (:args (fdefn :scs (descriptor-reg) :target result))
 315   (:results (result :scs (descriptor-reg)))
 316   (:generator 38
 317     (storew nil-value fdefn fdefn-fun-slot other-pointer-lowtag)
 318     (storew (make-fixup "undefined_tramp" :foreign)
 319             fdefn fdefn-raw-addr-slot other-pointer-lowtag)
 320     (move result fdefn)))
 321 \f
 322 ;;;; binding and unbinding
 323
 324 ;;; BIND -- Establish VAL as a binding for SYMBOL. Save the old value and
 325 ;;; the symbol on the binding stack and stuff the new value into the
 326 ;;; symbol.
 327
 328 #!+sb-thread
 329 (define-vop (bind)
 330   (:args (val :scs (any-reg descriptor-reg))
 331          (symbol :scs (descriptor-reg)))
 332   (:temporary (:sc descriptor-reg :offset rax-offset) rax)
 333   (:temporary (:sc unsigned-reg) tls-index temp bsp)
 334   (:generator 10
 335     (let ((tls-index-valid (gen-label))
 336           (get-tls-index-lock (gen-label))
 337           (release-tls-index-lock (gen-label)))
 338       (load-binding-stack-pointer bsp)
 339       (loadw tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
 340       (inst add bsp (* binding-size n-word-bytes))
 341       (store-binding-stack-pointer bsp)
 342       (inst or tls-index tls-index)
 343       (inst jmp :ne tls-index-valid)
 344
 345       (pseudo-atomic
 346        (emit-label get-tls-index-lock)
 347        (inst mov temp 1)
 348        (zeroize rax)
 349        (inst lock)
 350        (inst cmpxchg (make-ea-for-symbol-value *tls-index-lock*) temp)
 351        (inst jmp :ne get-tls-index-lock)
 352        ;; now with the lock held, see if the symbol's tls index has
 353        ;; been set in the meantime
 354        (loadw tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
 355        (inst or tls-index tls-index)
 356        (inst jmp :ne release-tls-index-lock)
 357        ;; allocate a new tls-index
 358        (load-symbol-value tls-index *free-tls-index*)
 359        (inst add tls-index 8)          ;XXX surely we can do this more
 360        (store-symbol-value tls-index *free-tls-index*) ;succintly
 361        (inst sub tls-index 8)
 362        (storew tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
 363        (emit-label release-tls-index-lock)
 364        (store-symbol-value 0 *tls-index-lock*))
 365
 366       (emit-label tls-index-valid)
 367       (inst mov temp
 368             (make-ea :qword :base thread-base-tn :scale 1 :index tls-index))
 369       (storew temp bsp (- binding-value-slot binding-size))
 370       (storew symbol bsp (- binding-symbol-slot binding-size))
 371       (inst mov (make-ea :qword :base thread-base-tn :scale 1 :index tls-index)
 372             val))))
 373
 374 #!-sb-thread
 375 (define-vop (bind)
 376   (:args (val :scs (any-reg descriptor-reg))
 377          (symbol :scs (descriptor-reg)))
 378   (:temporary (:sc unsigned-reg) temp bsp)
 379   (:generator 5
 380     (load-symbol-value bsp *binding-stack-pointer*)
 381     (loadw temp symbol symbol-value-slot other-pointer-lowtag)
 382     (inst add bsp (* binding-size n-word-bytes))
 383     (store-symbol-value bsp *binding-stack-pointer*)
 384     (storew temp bsp (- binding-value-slot binding-size))
 385     (storew symbol bsp (- binding-symbol-slot binding-size))
 386     (storew val symbol symbol-value-slot other-pointer-lowtag)))
 387
 388
 389 #!+sb-thread
 390 (define-vop (unbind)
 391     ;; four temporaries?
 392   (:temporary (:sc unsigned-reg) symbol value bsp tls-index)
 393   (:generator 0
 394     (load-binding-stack-pointer bsp)
 395     (loadw symbol bsp (- binding-symbol-slot binding-size))
 396     (loadw value bsp (- binding-value-slot binding-size))
 397
 398     (loadw tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
 399     (inst mov (make-ea :qword :base thread-base-tn :scale 1 :index tls-index)
 400           value)
 401
 402     (storew 0 bsp (- binding-symbol-slot binding-size))
 403     (storew 0 bsp (- binding-value-slot binding-size))
 404     (inst sub bsp (* binding-size n-word-bytes))
 405     (store-binding-stack-pointer bsp)))
 406
 407 #!-sb-thread
 408 (define-vop (unbind)
 409   (:temporary (:sc unsigned-reg) symbol value bsp)
 410   (:generator 0
 411     (load-symbol-value bsp *binding-stack-pointer*)
 412     (loadw symbol bsp (- binding-symbol-slot binding-size))
 413     (loadw value bsp (- binding-value-slot binding-size))
 414     (storew value symbol symbol-value-slot other-pointer-lowtag)
 415     (storew 0 bsp (- binding-symbol-slot binding-size))
 416     (storew 0 bsp (- binding-value-slot binding-size))
 417     (inst sub bsp (* binding-size n-word-bytes))
 418     (store-symbol-value bsp *binding-stack-pointer*)))
 419
 420
 421 (define-vop (unbind-to-here)
 422   (:args (where :scs (descriptor-reg any-reg)))
 423   (:temporary (:sc unsigned-reg) symbol value bsp #!+sb-thread tls-index)
 424   (:generator 0
 425     (load-binding-stack-pointer bsp)
 426     (inst cmp where bsp)
 427     (inst jmp :e DONE)
 428
 429     LOOP
 430     (loadw symbol bsp (- binding-symbol-slot binding-size))
 431     (inst or symbol symbol)
 432     (inst jmp :z SKIP)
 433     ;; Bind stack debug sentinels have the unbound marker in the symbol slot
 434     (inst cmp symbol unbound-marker-widetag)
 435     (inst jmp :eq SKIP)
 436     (loadw value bsp (- binding-value-slot binding-size))
 437     #!-sb-thread
 438     (storew value symbol symbol-value-slot other-pointer-lowtag)
 439     #!+sb-thread
 440     (loadw tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
 441     #!+sb-thread
 442     (inst mov (make-ea :qword :base thread-base-tn :scale 1 :index tls-index)
 443           value)
 444     (storew 0 bsp (- binding-symbol-slot binding-size))
 445
 446     SKIP
 447     (storew 0 bsp (- binding-value-slot binding-size))
 448     (inst sub bsp (* binding-size n-word-bytes))
 449     (inst cmp where bsp)
 450     (inst jmp :ne LOOP)
 451     (store-binding-stack-pointer bsp)
 452
 453     DONE))
 454
 455 (define-vop (bind-sentinel)
 456   (:temporary (:sc unsigned-reg) bsp)
 457   (:generator 1
 458      (load-binding-stack-pointer bsp)
 459      (inst add bsp (* binding-size n-word-bytes))
 460      (storew unbound-marker-widetag bsp (- binding-symbol-slot binding-size))
 461      (storew rbp-tn bsp (- binding-value-slot binding-size))
 462      (store-binding-stack-pointer bsp)))
 463
 464 (define-vop (unbind-sentinel)
 465   (:temporary (:sc unsigned-reg) bsp)
 466   (:generator 1
 467      (load-binding-stack-pointer bsp)
 468      (storew 0 bsp (- binding-value-slot binding-size))
 469      (storew 0 bsp (- binding-symbol-slot binding-size))
 470      (inst sub bsp (* binding-size n-word-bytes))
 471      (store-binding-stack-pointer bsp)))
 472
 473 \f
 474
 475 \f
 476 ;;;; closure indexing
 477
 478 (define-full-reffer closure-index-ref *
 479   closure-info-offset fun-pointer-lowtag
 480   (any-reg descriptor-reg) * %closure-index-ref)
 481
 482 (define-full-setter set-funcallable-instance-info *
 483   funcallable-instance-info-offset fun-pointer-lowtag
 484   (any-reg descriptor-reg) * %set-funcallable-instance-info)
 485
 486 (define-full-reffer funcallable-instance-info *
 487   funcallable-instance-info-offset fun-pointer-lowtag
 488   (descriptor-reg any-reg) * %funcallable-instance-info)
 489
 490 (define-vop (closure-ref slot-ref)
 491   (:variant closure-info-offset fun-pointer-lowtag))
 492
 493 (define-vop (closure-init slot-set)
 494   (:variant closure-info-offset fun-pointer-lowtag))
 495 \f
 496 ;;;; value cell hackery
 497
 498 (define-vop (value-cell-ref cell-ref)
 499   (:variant value-cell-value-slot other-pointer-lowtag))
 500
 501 (define-vop (value-cell-set cell-set)
 502   (:variant value-cell-value-slot other-pointer-lowtag))
 503 \f
 504 ;;;; structure hackery
 505
 506 (define-vop (instance-length)
 507   (:policy :fast-safe)
 508   (:translate %instance-length)
 509   (:args (struct :scs (descriptor-reg)))
 510   (:results (res :scs (unsigned-reg)))
 511   (:result-types positive-fixnum)
 512   (:generator 4
 513     (loadw res struct 0 instance-pointer-lowtag)
 514     (inst shr res n-widetag-bits)))
 515
 516 (define-full-reffer instance-index-ref * instance-slots-offset
 517   instance-pointer-lowtag (any-reg descriptor-reg) * %instance-ref)
 518
 519 (define-full-setter instance-index-set * instance-slots-offset
 520   instance-pointer-lowtag (any-reg descriptor-reg) * %instance-set)
 521
 522 (define-full-compare-and-swap %compare-and-swap-instance-ref instance
 523   instance-slots-offset instance-pointer-lowtag
 524   (any-reg descriptor-reg) *
 525   %compare-and-swap-instance-ref)
 526 \f
 527 ;;;; code object frobbing
 528
 529 (define-full-reffer code-header-ref * 0 other-pointer-lowtag
 530   (any-reg descriptor-reg) * code-header-ref)
 531
 532 (define-full-setter code-header-set * 0 other-pointer-lowtag
 533   (any-reg descriptor-reg) * code-header-set)
 534 \f
 535 ;;;; raw instance slot accessors
 536
 537 (defun make-ea-for-raw-slot (object index instance-length
 538                              &optional (adjustment 0))
 539   (etypecase index
 540     (tn
 541      (make-ea :qword :base object :index instance-length
 542               :disp (+ (* (1- instance-slots-offset) n-word-bytes)
 543                        (- instance-pointer-lowtag)
 544                        adjustment)))
 545     (integer
 546      (make-ea :qword :base object :index instance-length
 547               :scale 8
 548               :disp (+ (* (1- instance-slots-offset) n-word-bytes)
 549                        (- instance-pointer-lowtag)
 550                        adjustment
 551                        (- (fixnumize index)))))))
 552
 553 (define-vop (raw-instance-ref/word)
 554   (:translate %raw-instance-ref/word)
 555   (:policy :fast-safe)
 556   (:args (object :scs (descriptor-reg)) (index :scs (any-reg)))
 557   (:arg-types * tagged-num)
 558   (:temporary (:sc unsigned-reg) tmp)
 559   (:results (value :scs (unsigned-reg)))
 560   (:result-types unsigned-num)
 561   (:generator 5
 562     (loadw tmp object 0 instance-pointer-lowtag)
 563     (inst shr tmp n-widetag-bits)
 564     (inst shl tmp 3)
 565     (inst sub tmp index)
 566     (inst mov value (make-ea-for-raw-slot object index tmp))))
 567
 568 (define-vop (raw-instance-ref-c/word)
 569   (:translate %raw-instance-ref/word)
 570   (:policy :fast-safe)
 571   (:args (object :scs (descriptor-reg)))
 572   (:arg-types * (:constant (load/store-index #.sb!vm:n-word-bytes
 573                                              #.instance-pointer-lowtag
 574                                              #.instance-slots-offset)))
 575   (:info index)
 576   (:temporary (:sc unsigned-reg) tmp)
 577   (:results (value :scs (unsigned-reg)))
 578   (:result-types unsigned-num)
 579   (:generator 4
 580     (loadw tmp object 0 instance-pointer-lowtag)
 581     (inst shr tmp n-widetag-bits)
 582     (inst mov value (make-ea-for-raw-slot object index tmp))))
 583
 584 (define-vop (raw-instance-set/word)
 585   (:translate %raw-instance-set/word)
 586   (:policy :fast-safe)
 587   (:args (object :scs (descriptor-reg))
 588          (index :scs (any-reg))
 589          (value :scs (unsigned-reg) :target result))
 590   (:arg-types * tagged-num unsigned-num)
 591   (:temporary (:sc unsigned-reg) tmp)
 592   (:results (result :scs (unsigned-reg)))
 593   (:result-types unsigned-num)
 594   (:generator 5
 595     (loadw tmp object 0 instance-pointer-lowtag)
 596     (inst shr tmp n-widetag-bits)
 597     (inst shl tmp 3)
 598     (inst sub tmp index)
 599     (inst mov (make-ea-for-raw-slot object index tmp) value)
 600     (move result value)))
 601
 602 (define-vop (raw-instance-set-c/word)
 603   (:translate %raw-instance-set/word)
 604   (:policy :fast-safe)
 605   (:args (object :scs (descriptor-reg))
 606          (value :scs (unsigned-reg) :target result))
 607   (:arg-types * (:constant (load/store-index #.sb!vm:n-word-bytes
 608                                              #.instance-pointer-lowtag
 609                                              #.instance-slots-offset))
 610               unsigned-num)
 611   (:info index)
 612   (:temporary (:sc unsigned-reg) tmp)
 613   (:results (result :scs (unsigned-reg)))
 614   (:result-types unsigned-num)
 615   (:generator 4
 616     (loadw tmp object 0 instance-pointer-lowtag)
 617     (inst shr tmp n-widetag-bits)
 618     (inst mov (make-ea-for-raw-slot object index tmp) value)
 619     (move result value)))
 620
 621 (define-vop (raw-instance-ref/single)
 622   (:translate %raw-instance-ref/single)
 623   (:policy :fast-safe)
 624   (:args (object :scs (descriptor-reg))
 625          (index :scs (any-reg)))
 626   (:arg-types * positive-fixnum)
 627   (:temporary (:sc unsigned-reg) tmp)
 628   (:results (value :scs (single-reg)))
 629   (:result-types single-float)
 630   (:generator 5
 631     (loadw tmp object 0 instance-pointer-lowtag)
 632     (inst shr tmp n-widetag-bits)
 633     (inst shl tmp 3)
 634     (inst sub tmp index)
 635     (inst movss value (make-ea-for-raw-slot object index tmp))))
 636
 637 (define-vop (raw-instance-ref-c/single)
 638   (:translate %raw-instance-ref/single)
 639   (:policy :fast-safe)
 640   (:args (object :scs (descriptor-reg)))
 641   (:arg-types * (:constant (load/store-index #.sb!vm:n-word-bytes
 642                                              #.instance-pointer-lowtag
 643                                              #.instance-slots-offset)))
 644   (:info index)
 645   (:temporary (:sc unsigned-reg) tmp)
 646   (:results (value :scs (single-reg)))
 647   (:result-types single-float)
 648   (:generator 4
 649     (loadw tmp object 0 instance-pointer-lowtag)
 650     (inst shr tmp n-widetag-bits)
 651     (inst movss value (make-ea-for-raw-slot object index tmp))))
 652
 653 (define-vop (raw-instance-set/single)
 654   (:translate %raw-instance-set/single)
 655   (:policy :fast-safe)
 656   (:args (object :scs (descriptor-reg))
 657          (index :scs (any-reg))
 658          (value :scs (single-reg) :target result))
 659   (:arg-types * positive-fixnum single-float)
 660   (:temporary (:sc unsigned-reg) tmp)
 661   (:results (result :scs (single-reg)))
 662   (:result-types single-float)
 663   (:generator 5
 664     (loadw tmp object 0 instance-pointer-lowtag)
 665     (inst shr tmp n-widetag-bits)
 666     (inst shl tmp 3)
 667     (inst sub tmp index)
 668     (inst movss (make-ea-for-raw-slot object index tmp) value)
 669    (unless (location= result value)
 670      (inst movss result value))))
 671
 672 (define-vop (raw-instance-set-c/single)
 673   (:translate %raw-instance-set/single)
 674   (:policy :fast-safe)
 675   (:args (object :scs (descriptor-reg))
 676          (value :scs (single-reg) :target result))
 677   (:arg-types * (:constant (load/store-index #.sb!vm:n-word-bytes
 678                                              #.instance-pointer-lowtag
 679                                              #.instance-slots-offset))
 680               single-float)
 681   (:info index)
 682   (:temporary (:sc unsigned-reg) tmp)
 683   (:results (result :scs (single-reg)))
 684   (:result-types single-float)
 685   (:generator 4
 686     (loadw tmp object 0 instance-pointer-lowtag)
 687     (inst shr tmp n-widetag-bits)
 688     (inst movss (make-ea-for-raw-slot object index tmp) value)
 689    (unless (location= result value)
 690      (inst movss result value))))
 691
 692 (define-vop (raw-instance-ref/double)
 693   (:translate %raw-instance-ref/double)
 694   (:policy :fast-safe)
 695   (:args (object :scs (descriptor-reg))
 696          (index :scs (any-reg)))
 697   (:arg-types * positive-fixnum)
 698   (:temporary (:sc unsigned-reg) tmp)
 699   (:results (value :scs (double-reg)))
 700   (:result-types double-float)
 701   (:generator 5
 702     (loadw tmp object 0 instance-pointer-lowtag)
 703     (inst shr tmp n-widetag-bits)
 704     (inst shl tmp 3)
 705     (inst sub tmp index)
 706     (inst movsd value (make-ea-for-raw-slot object index tmp))))
 707
 708 (define-vop (raw-instance-ref-c/double)
 709   (:translate %raw-instance-ref/double)
 710   (:policy :fast-safe)
 711   (:args (object :scs (descriptor-reg)))
 712   (:arg-types * (:constant (load/store-index #.sb!vm:n-word-bytes
 713                                              #.instance-pointer-lowtag
 714                                              #.instance-slots-offset)))
 715   (:info index)
 716   (:temporary (:sc unsigned-reg) tmp)
 717   (:results (value :scs (double-reg)))
 718   (:result-types double-float)
 719   (:generator 4
 720     (loadw tmp object 0 instance-pointer-lowtag)
 721     (inst shr tmp n-widetag-bits)
 722     (inst movsd value (make-ea-for-raw-slot object index tmp))))
 723
 724 (define-vop (raw-instance-set/double)
 725   (:translate %raw-instance-set/double)
 726   (:policy :fast-safe)
 727   (:args (object :scs (descriptor-reg))
 728          (index :scs (any-reg))
 729          (value :scs (double-reg) :target result))
 730   (:arg-types * positive-fixnum double-float)
 731   (:temporary (:sc unsigned-reg) tmp)
 732   (:results (result :scs (double-reg)))
 733   (:result-types double-float)
 734   (:generator 5
 735     (loadw tmp object 0 instance-pointer-lowtag)
 736     (inst shr tmp n-widetag-bits)
 737     (inst shl tmp 3)
 738     (inst sub tmp index)
 739     (inst movsd (make-ea-for-raw-slot object index tmp) value)
 740    (unless (location= result value)
 741      (inst movsd result value))))
 742
 743 (define-vop (raw-instance-set-c/double)
 744   (:translate %raw-instance-set/double)
 745   (:policy :fast-safe)
 746   (:args (object :scs (descriptor-reg))
 747          (value :scs (double-reg) :target result))
 748   (:arg-types * (:constant (load/store-index #.sb!vm:n-word-bytes
 749                                              #.instance-pointer-lowtag
 750                                              #.instance-slots-offset))
 751               double-float)
 752   (:info index)
 753   (:temporary (:sc unsigned-reg) tmp)
 754   (:results (result :scs (double-reg)))
 755   (:result-types double-float)
 756   (:generator 4
 757     (loadw tmp object 0 instance-pointer-lowtag)
 758     (inst shr tmp n-widetag-bits)
 759     (inst movsd (make-ea-for-raw-slot object index tmp) value)
 760    (unless (location= result value)
 761      (inst movsd result value))))
 762
 763 (define-vop (raw-instance-ref/complex-single)
 764   (:translate %raw-instance-ref/complex-single)
 765   (:policy :fast-safe)
 766   (:args (object :scs (descriptor-reg))
 767          (index :scs (any-reg)))
 768   (:arg-types * positive-fixnum)
 769   (:temporary (:sc unsigned-reg) tmp)
 770   (:results (value :scs (complex-single-reg)))
 771   (:result-types complex-single-float)
 772   (:generator 5
 773     (loadw tmp object 0 instance-pointer-lowtag)
 774     (inst shr tmp n-widetag-bits)
 775     (inst shl tmp 3)
 776     (inst sub tmp index)
 777     (let ((real-tn (complex-single-reg-real-tn value)))
 778       (inst movss real-tn (make-ea-for-raw-slot object index tmp)))
 779     (let ((imag-tn (complex-single-reg-imag-tn value)))
 780       (inst movss imag-tn (make-ea-for-raw-slot object index tmp 4)))))
 781
 782 (define-vop (raw-instance-ref-c/complex-single)
 783   (:translate %raw-instance-ref/complex-single)
 784   (:policy :fast-safe)
 785   (:args (object :scs (descriptor-reg)))
 786   (:arg-types * (:constant (load/store-index #.sb!vm:n-word-bytes
 787                                              #.instance-pointer-lowtag
 788                                              #.instance-slots-offset)))
 789   (:info index)
 790   (:temporary (:sc unsigned-reg) tmp)
 791   (:results (value :scs (complex-single-reg)))
 792   (:result-types complex-single-float)
 793   (:generator 4
 794     (loadw tmp object 0 instance-pointer-lowtag)
 795     (inst shr tmp n-widetag-bits)
 796     (let ((real-tn (complex-single-reg-real-tn value)))
 797       (inst movss real-tn (make-ea-for-raw-slot object index tmp)))
 798     (let ((imag-tn (complex-single-reg-imag-tn value)))
 799       (inst movss imag-tn (make-ea-for-raw-slot object index tmp 4)))))
 800
 801 (define-vop (raw-instance-set/complex-single)
 802   (:translate %raw-instance-set/complex-single)
 803   (:policy :fast-safe)
 804   (:args (object :scs (descriptor-reg))
 805          (index :scs (any-reg))
 806          (value :scs (complex-single-reg) :target result))
 807   (:arg-types * positive-fixnum complex-single-float)
 808   (:temporary (:sc unsigned-reg) tmp)
 809   (:results (result :scs (complex-single-reg)))
 810   (:result-types complex-single-float)
 811   (:generator 5
 812     (loadw tmp object 0 instance-pointer-lowtag)
 813     (inst shr tmp n-widetag-bits)
 814     (inst shl tmp 3)
 815     (inst sub tmp index)
 816     (let ((value-real (complex-single-reg-real-tn value))
 817           (result-real (complex-single-reg-real-tn result)))
 818       (inst movss (make-ea-for-raw-slot object index tmp) value-real)
 819       (unless (location= value-real result-real)
 820         (inst movss result-real value-real)))
 821     (let ((value-imag (complex-single-reg-imag-tn value))
 822           (result-imag (complex-single-reg-imag-tn result)))
 823       (inst movss (make-ea-for-raw-slot object index tmp 4) value-imag)
 824       (unless (location= value-imag result-imag)
 825         (inst movss result-imag value-imag)))))
 826
 827 (define-vop (raw-instance-set-c/complex-single)
 828   (:translate %raw-instance-set/complex-single)
 829   (:policy :fast-safe)
 830   (:args (object :scs (descriptor-reg))
 831          (value :scs (complex-single-reg) :target result))
 832   (:arg-types * (:constant (load/store-index #.sb!vm:n-word-bytes
 833                                              #.instance-pointer-lowtag
 834                                              #.instance-slots-offset))
 835               complex-single-float)
 836   (:info index)
 837   (:temporary (:sc unsigned-reg) tmp)
 838   (:results (result :scs (complex-single-reg)))
 839   (:result-types complex-single-float)
 840   (:generator 4
 841     (loadw tmp object 0 instance-pointer-lowtag)
 842     (inst shr tmp n-widetag-bits)
 843     (let ((value-real (complex-single-reg-real-tn value))
 844           (result-real (complex-single-reg-real-tn result)))
 845       (inst movss (make-ea-for-raw-slot object index tmp) value-real)
 846       (unless (location= value-real result-real)
 847         (inst movss result-real value-real)))
 848     (let ((value-imag (complex-single-reg-imag-tn value))
 849           (result-imag (complex-single-reg-imag-tn result)))
 850       (inst movss (make-ea-for-raw-slot object index tmp 4) value-imag)
 851       (unless (location= value-imag result-imag)
 852         (inst movss result-imag value-imag)))))
 853
 854 (define-vop (raw-instance-ref/complex-double)
 855   (:translate %raw-instance-ref/complex-double)
 856   (:policy :fast-safe)
 857   (:args (object :scs (descriptor-reg))
 858          (index :scs (any-reg)))
 859   (:arg-types * positive-fixnum)
 860   (:temporary (:sc unsigned-reg) tmp)
 861   (:results (value :scs (complex-double-reg)))
 862   (:result-types complex-double-float)
 863   (:generator 5
 864     (loadw tmp object 0 instance-pointer-lowtag)
 865     (inst shr tmp n-widetag-bits)
 866     (inst shl tmp 3)
 867     (inst sub tmp index)
 868     (let ((real-tn (complex-double-reg-real-tn value)))
 869       (inst movsd real-tn (make-ea-for-raw-slot object index tmp -8)))
 870     (let ((imag-tn (complex-double-reg-imag-tn value)))
 871       (inst movsd imag-tn (make-ea-for-raw-slot object index tmp)))))
 872
 873 (define-vop (raw-instance-ref-c/complex-double)
 874   (:translate %raw-instance-ref/complex-double)
 875   (:policy :fast-safe)
 876   (:args (object :scs (descriptor-reg)))
 877   (:arg-types * (:constant (load/store-index #.sb!vm:n-word-bytes
 878                                              #.instance-pointer-lowtag
 879                                              #.instance-slots-offset)))
 880   (:info index)
 881   (:temporary (:sc unsigned-reg) tmp)
 882   (:results (value :scs (complex-double-reg)))
 883   (:result-types complex-double-float)
 884   (:generator 4
 885     (loadw tmp object 0 instance-pointer-lowtag)
 886     (inst shr tmp n-widetag-bits)
 887     (let ((real-tn (complex-double-reg-real-tn value)))
 888       (inst movsd real-tn (make-ea-for-raw-slot object index tmp -8)))
 889     (let ((imag-tn (complex-double-reg-imag-tn value)))
 890       (inst movsd imag-tn (make-ea-for-raw-slot object index tmp)))))
 891
 892 (define-vop (raw-instance-set/complex-double)
 893   (:translate %raw-instance-set/complex-double)
 894   (:policy :fast-safe)
 895   (:args (object :scs (descriptor-reg))
 896          (index :scs (any-reg))
 897          (value :scs (complex-double-reg) :target result))
 898   (:arg-types * positive-fixnum complex-double-float)
 899   (:temporary (:sc unsigned-reg) tmp)
 900   (:results (result :scs (complex-double-reg)))
 901   (:result-types complex-double-float)
 902   (:generator 5
 903     (loadw tmp object 0 instance-pointer-lowtag)
 904     (inst shr tmp n-widetag-bits)
 905     (inst shl tmp 3)
 906     (inst sub tmp index)
 907     (let ((value-real (complex-double-reg-real-tn value))
 908           (result-real (complex-double-reg-real-tn result)))
 909       (inst movsd (make-ea-for-raw-slot object index tmp -8) value-real)
 910       (unless (location= value-real result-real)
 911         (inst movsd result-real value-real)))
 912     (let ((value-imag (complex-double-reg-imag-tn value))
 913           (result-imag (complex-double-reg-imag-tn result)))
 914       (inst movsd (make-ea-for-raw-slot object index tmp) value-imag)
 915       (unless (location= value-imag result-imag)
 916         (inst movsd result-imag value-imag)))))
 917
 918 (define-vop (raw-instance-set-c/complex-double)
 919   (:translate %raw-instance-set/complex-double)
 920   (:policy :fast-safe)
 921   (:args (object :scs (descriptor-reg))
 922          (value :scs (complex-double-reg) :target result))
 923   (:arg-types * (:constant (load/store-index #.sb!vm:n-word-bytes
 924                                              #.instance-pointer-lowtag
 925                                              #.instance-slots-offset))
 926               complex-double-float)
 927   (:info index)
 928   (:temporary (:sc unsigned-reg) tmp)
 929   (:results (result :scs (complex-double-reg)))
 930   (:result-types complex-double-float)
 931   (:generator 4
 932     (loadw tmp object 0 instance-pointer-lowtag)
 933     (inst shr tmp n-widetag-bits)
 934     (let ((value-real (complex-double-reg-real-tn value))
 935           (result-real (complex-double-reg-real-tn result)))
 936       (inst movsd (make-ea-for-raw-slot object index tmp -8) value-real)
 937       (unless (location= value-real result-real)
 938         (inst movsd result-real value-real)))
 939     (let ((value-imag (complex-double-reg-imag-tn value))
 940           (result-imag (complex-double-reg-imag-tn result)))
 941       (inst movsd (make-ea-for-raw-slot object index tmp) value-imag)
 942       (unless (location= value-imag result-imag)
 943         (inst movsd result-imag value-imag)))))