src/compiler/x86/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   (:info name offset lowtag)
  28   (:ignore name)
  29   (:results)
  30   (:generator 1
  31      (storew (encode-value-if-immediate value) object offset lowtag)))
  32
  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)
  39               eax)
  40   (:info name offset lowtag)
  41   (:ignore name)
  42   (:results (result :scs (descriptor-reg any-reg)))
  43   (:generator 5
  44      (move eax old)
  45      (inst cmpxchg (make-ea :dword :base object
  46                             :disp (- (* offset n-word-bytes) lowtag))
  47            new :lock)
  48      (move result eax)))
  49 \f
  50 ;;;; symbol hacking VOPs
  51
  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)
  58   #!+sb-thread
  59   (:temporary (:sc descriptor-reg) tls)
  60   (:results (result :scs (descriptor-reg any-reg)))
  61   (:policy :fast-safe)
  62   (:vop-var vop)
  63   (:generator 15
  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))
  68           (check (gen-label)))
  69       (move eax old)
  70       #!+sb-thread
  71       (progn
  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)
  76         (inst jmp :ne check)
  77         (move eax old))
  78       (inst cmpxchg (make-ea :dword :base symbol
  79                              :disp (- (* symbol-value-slot n-word-bytes)
  80                                       other-pointer-lowtag))
  81             new :lock)
  82       (emit-label check)
  83       (move result eax)
  84       (inst cmp result unbound-marker-widetag)
  85       (inst jmp :e unbound))))
  86
  87 (define-vop (%set-symbol-global-value cell-set)
  88   (:variant symbol-value-slot other-pointer-lowtag))
  89
  90 (define-vop (fast-symbol-global-value cell-ref)
  91   (:variant symbol-value-slot other-pointer-lowtag)
  92   (:policy :fast)
  93   (:translate symbol-global-value))
  94
  95 (define-vop (symbol-global-value)
  96   (:policy :fast-safe)
  97   (:translate symbol-global-value)
  98   (:args (object :scs (descriptor-reg) :to (:result 1)))
  99   (:results (value :scs (descriptor-reg any-reg)))
 100   (:vop-var vop)
 101   (:save-p :compute-only)
 102   (:generator 9
 103     (let ((err-lab (generate-error-code vop 'unbound-symbol-error object)))
 104       (loadw value object symbol-value-slot other-pointer-lowtag)
 105       (inst cmp value unbound-marker-widetag)
 106       (inst jmp :e err-lab))))
 107
 108 #!+sb-thread
 109 (progn
 110   (define-vop (set)
 111     (:args (symbol :scs (descriptor-reg))
 112            (value :scs (descriptor-reg any-reg)))
 113     (:temporary (:sc descriptor-reg) tls)
 114     (:generator 4
 115       (let ((global-val (gen-label))
 116             (done (gen-label)))
 117         (loadw tls symbol symbol-tls-index-slot other-pointer-lowtag)
 118         (inst cmp (make-ea :dword :base tls) no-tls-value-marker-widetag :fs)
 119         (inst jmp :z global-val)
 120         (inst mov (make-ea :dword :base tls) value :fs)
 121         (inst jmp done)
 122         (emit-label global-val)
 123         (storew value symbol symbol-value-slot other-pointer-lowtag)
 124         (emit-label done))))
 125
 126   ;; With Symbol-Value, we check that the value isn't the trap object. So
 127   ;; Symbol-Value of NIL is NIL.
 128   (define-vop (symbol-value)
 129     (:translate symbol-value)
 130     (:policy :fast-safe)
 131     (:args (object :scs (descriptor-reg) :to (:result 1)))
 132     (:results (value :scs (descriptor-reg any-reg)))
 133     (:vop-var vop)
 134     (:save-p :compute-only)
 135     (:generator 9
 136       (let* ((check-unbound-label (gen-label))
 137              (err-lab (generate-error-code vop 'unbound-symbol-error object))
 138              (ret-lab (gen-label)))
 139         (loadw value object symbol-tls-index-slot other-pointer-lowtag)
 140         (inst mov value (make-ea :dword :base value) :fs)
 141         (inst cmp value no-tls-value-marker-widetag)
 142         (inst jmp :ne check-unbound-label)
 143         (loadw value object symbol-value-slot other-pointer-lowtag)
 144         (emit-label check-unbound-label)
 145         (inst cmp value unbound-marker-widetag)
 146         (inst jmp :e err-lab)
 147         (emit-label ret-lab))))
 148
 149   (define-vop (fast-symbol-value symbol-value)
 150     ;; KLUDGE: not really fast, in fact, because we're going to have to
 151     ;; do a full lookup of the thread-local area anyway.  But half of
 152     ;; the meaning of FAST-SYMBOL-VALUE is "do not signal an error if
 153     ;; unbound", which is used in the implementation of COPY-SYMBOL.  --
 154     ;; CSR, 2003-04-22
 155     (:policy :fast)
 156     (:translate symbol-value)
 157     (:generator 8
 158       (let ((ret-lab (gen-label)))
 159         (loadw value object symbol-tls-index-slot other-pointer-lowtag)
 160         (inst mov value (make-ea :dword :base value) :fs)
 161         (inst cmp value no-tls-value-marker-widetag)
 162         (inst jmp :ne ret-lab)
 163         (loadw value object symbol-value-slot other-pointer-lowtag)
 164         (emit-label ret-lab)))))
 165
 166 #!-sb-thread
 167 (progn
 168   (define-vop (symbol-value symbol-global-value)
 169     (:translate symbol-value))
 170   (define-vop (fast-symbol-value fast-symbol-global-value)
 171     (:translate symbol-value))
 172   (define-vop (set %set-symbol-global-value)))
 173
 174 #!+sb-thread
 175 (define-vop (boundp)
 176   (:translate boundp)
 177   (:policy :fast-safe)
 178   (:args (object :scs (descriptor-reg)))
 179   (:conditional :ne)
 180   (:temporary (:sc descriptor-reg #+nil(:from (:argument 0))) value)
 181   (:generator 9
 182     (let ((check-unbound-label (gen-label)))
 183       (loadw value object symbol-tls-index-slot other-pointer-lowtag)
 184       (inst mov value (make-ea :dword :base value) :fs)
 185       (inst cmp value no-tls-value-marker-widetag)
 186       (inst jmp :ne check-unbound-label)
 187       (loadw value object symbol-value-slot other-pointer-lowtag)
 188       (emit-label check-unbound-label)
 189       (inst cmp value unbound-marker-widetag))))
 190
 191 #!-sb-thread
 192 (define-vop (boundp)
 193   (:translate boundp)
 194   (:policy :fast-safe)
 195   (:args (object :scs (descriptor-reg)))
 196   (:conditional :ne)
 197   (:generator 9
 198     (inst cmp (make-ea-for-object-slot object symbol-value-slot
 199                                        other-pointer-lowtag)
 200           unbound-marker-widetag)))
 201
 202
 203 (define-vop (symbol-hash)
 204   (:policy :fast-safe)
 205   (:translate symbol-hash)
 206   (:args (symbol :scs (descriptor-reg)))
 207   (:results (res :scs (any-reg)))
 208   (:result-types positive-fixnum)
 209   (:generator 2
 210     ;; The symbol-hash slot of NIL holds NIL because it is also the
 211     ;; cdr slot, so we have to strip off the two low bits to make sure
 212     ;; it is a fixnum.  The lowtag selection magic that is required to
 213     ;; ensure this is explained in the comment in objdef.lisp
 214     (loadw res symbol symbol-hash-slot other-pointer-lowtag)
 215     (inst and res (lognot #b11))))
 216 \f
 217 ;;;; fdefinition (FDEFN) objects
 218
 219 (define-vop (fdefn-fun cell-ref)        ; /pfw - alpha
 220   (:variant fdefn-fun-slot other-pointer-lowtag))
 221
 222 (define-vop (safe-fdefn-fun)
 223   (:args (object :scs (descriptor-reg) :to (:result 1)))
 224   (:results (value :scs (descriptor-reg any-reg)))
 225   (:vop-var vop)
 226   (:save-p :compute-only)
 227   (:generator 10
 228     (loadw value object fdefn-fun-slot other-pointer-lowtag)
 229     (inst cmp value nil-value)
 230     (let ((err-lab (generate-error-code vop 'undefined-fun-error object)))
 231       (inst jmp :e err-lab))))
 232
 233 (define-vop (set-fdefn-fun)
 234   (:policy :fast-safe)
 235   (:translate (setf fdefn-fun))
 236   (:args (function :scs (descriptor-reg) :target result)
 237          (fdefn :scs (descriptor-reg)))
 238   (:temporary (:sc unsigned-reg) raw)
 239   (:temporary (:sc byte-reg) type)
 240   (:results (result :scs (descriptor-reg)))
 241   (:generator 38
 242     (load-type type function (- fun-pointer-lowtag))
 243     (inst lea raw
 244           (make-ea-for-object-slot function simple-fun-code-offset
 245                                    fun-pointer-lowtag))
 246     (inst cmp type simple-fun-header-widetag)
 247     (inst jmp :e normal-fn)
 248     (inst lea raw (make-fixup "closure_tramp" :foreign))
 249     NORMAL-FN
 250     (storew function fdefn fdefn-fun-slot other-pointer-lowtag)
 251     (storew raw fdefn fdefn-raw-addr-slot other-pointer-lowtag)
 252     (move result function)))
 253
 254 (define-vop (fdefn-makunbound)
 255   (:policy :fast-safe)
 256   (:translate fdefn-makunbound)
 257   (:args (fdefn :scs (descriptor-reg) :target result))
 258   (:results (result :scs (descriptor-reg)))
 259   (:generator 38
 260     (storew nil-value fdefn fdefn-fun-slot other-pointer-lowtag)
 261     (storew (make-fixup "undefined_tramp" :foreign)
 262             fdefn fdefn-raw-addr-slot other-pointer-lowtag)
 263     (move result fdefn)))
 264 \f
 265 ;;;; binding and unbinding
 266
 267 ;;; BIND -- Establish VAL as a binding for SYMBOL. Save the old value and
 268 ;;; the symbol on the binding stack and stuff the new value into the
 269 ;;; symbol.
 270
 271 ;;; FIXME: Split into DYNBIND and BIND: DYNBIND needs to ensure
 272 ;;; TLS-INDEX, whereas BIND should assume it is already in place. Make
 273 ;;; LET &co compile into BIND, and PROGV into DYNBIND, plus ensure
 274 ;;; TLS-INDEX at compile-time, and make loader and dumper preserve
 275 ;;; the existence of a TLS-INDEX.
 276 #!+sb-thread
 277 (define-vop (bind)
 278   (:args (val :scs (any-reg descriptor-reg))
 279          (symbol :scs (descriptor-reg)))
 280   (:temporary (:sc unsigned-reg) tls-index bsp)
 281   (:generator 10
 282     (let ((tls-index-valid (gen-label)))
 283       (load-binding-stack-pointer bsp)
 284       (loadw tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
 285       (inst add bsp (* binding-size n-word-bytes))
 286       (store-binding-stack-pointer bsp)
 287       (inst or tls-index tls-index)
 288       (inst jmp :ne tls-index-valid)
 289       (inst mov tls-index symbol)
 290       (inst call (make-fixup
 291                   (ecase (tn-offset tls-index)
 292                     (#.eax-offset 'alloc-tls-index-in-eax)
 293                     (#.ebx-offset 'alloc-tls-index-in-ebx)
 294                     (#.ecx-offset 'alloc-tls-index-in-ecx)
 295                     (#.edx-offset 'alloc-tls-index-in-edx)
 296                     (#.edi-offset 'alloc-tls-index-in-edi)
 297                     (#.esi-offset 'alloc-tls-index-in-esi))
 298                   :assembly-routine))
 299       (emit-label tls-index-valid)
 300       (inst push (make-ea :dword :base tls-index) :fs)
 301       (popw bsp (- binding-value-slot binding-size))
 302       (storew symbol bsp (- binding-symbol-slot binding-size))
 303       (inst mov (make-ea :dword :base tls-index) val :fs))))
 304
 305 #!-sb-thread
 306 (define-vop (bind)
 307   (:args (val :scs (any-reg descriptor-reg))
 308          (symbol :scs (descriptor-reg)))
 309   (:temporary (:sc unsigned-reg) temp bsp)
 310   (:generator 5
 311     (load-symbol-value bsp *binding-stack-pointer*)
 312     (loadw temp symbol symbol-value-slot other-pointer-lowtag)
 313     (inst add bsp (* binding-size n-word-bytes))
 314     (store-symbol-value bsp *binding-stack-pointer*)
 315     (storew temp bsp (- binding-value-slot binding-size))
 316     (storew symbol bsp (- binding-symbol-slot binding-size))
 317     (storew val symbol symbol-value-slot other-pointer-lowtag)))
 318
 319 #!+sb-thread
 320 (define-vop (unbind)
 321   (:temporary (:sc unsigned-reg) temp bsp tls-index)
 322   (:generator 0
 323     (load-binding-stack-pointer bsp)
 324     ;; Load SYMBOL from stack, and get the TLS-INDEX.
 325     (loadw temp bsp (- binding-symbol-slot binding-size))
 326     (loadw tls-index temp symbol-tls-index-slot other-pointer-lowtag)
 327     ;; Load VALUE from stack, then restore it to the TLS area.
 328     (loadw temp bsp (- binding-value-slot binding-size))
 329     (inst mov (make-ea :dword :base tls-index) temp :fs)
 330     ;; Zero out the stack.
 331     (storew 0 bsp (- binding-symbol-slot binding-size))
 332     (storew 0 bsp (- binding-value-slot binding-size))
 333     (inst sub bsp (* binding-size n-word-bytes))
 334     (store-binding-stack-pointer bsp)))
 335
 336 #!-sb-thread
 337 (define-vop (unbind)
 338   (:temporary (:sc unsigned-reg) symbol value bsp)
 339   (:generator 0
 340     (load-symbol-value bsp *binding-stack-pointer*)
 341     (loadw symbol bsp (- binding-symbol-slot binding-size))
 342     (loadw value bsp (- binding-value-slot binding-size))
 343     (storew value symbol symbol-value-slot other-pointer-lowtag)
 344     (storew 0 bsp (- binding-symbol-slot binding-size))
 345     (storew 0 bsp (- binding-value-slot binding-size))
 346     (inst sub bsp (* binding-size n-word-bytes))
 347     (store-symbol-value bsp *binding-stack-pointer*)))
 348
 349
 350 (define-vop (unbind-to-here)
 351   (:args (where :scs (descriptor-reg any-reg)))
 352   (:temporary (:sc unsigned-reg) symbol value bsp #!+sb-thread tls-index)
 353   (:generator 0
 354     (load-binding-stack-pointer bsp)
 355     (inst cmp where bsp)
 356     (inst jmp :e done)
 357
 358     LOOP
 359     (loadw symbol bsp (- binding-symbol-slot binding-size))
 360     (inst or symbol symbol)
 361     (inst jmp :z skip)
 362     ;; Bind stack debug sentinels have the unbound marker in the symbol slot
 363     (inst cmp symbol unbound-marker-widetag)
 364     (inst jmp :eq skip)
 365     (loadw value bsp (- binding-value-slot binding-size))
 366     #!-sb-thread (storew value symbol symbol-value-slot other-pointer-lowtag)
 367
 368     #!+sb-thread (loadw
 369                   tls-index symbol symbol-tls-index-slot other-pointer-lowtag)
 370     #!+sb-thread (inst mov (make-ea :dword :base tls-index) value :fs)
 371     (storew 0 bsp (- binding-symbol-slot binding-size))
 372
 373     SKIP
 374     (storew 0 bsp (- binding-value-slot binding-size))
 375     (inst sub bsp (* binding-size n-word-bytes))
 376     (inst cmp where bsp)
 377     (inst jmp :ne loop)
 378     (store-binding-stack-pointer bsp)
 379
 380     DONE))
 381
 382 (define-vop (bind-sentinel)
 383   (:temporary (:sc unsigned-reg) bsp)
 384   (:generator 1
 385      (load-binding-stack-pointer bsp)
 386      (inst add bsp (* binding-size n-word-bytes))
 387      (storew unbound-marker-widetag bsp (- binding-symbol-slot binding-size))
 388      (storew ebp-tn bsp (- binding-value-slot binding-size))
 389      (store-binding-stack-pointer bsp)))
 390
 391 (define-vop (unbind-sentinel)
 392   (:temporary (:sc unsigned-reg) bsp)
 393   (:generator 1
 394      (load-binding-stack-pointer bsp)
 395      (storew 0 bsp (- binding-value-slot binding-size))
 396      (storew 0 bsp (- binding-symbol-slot binding-size))
 397      (inst sub bsp (* binding-size n-word-bytes))
 398      (store-binding-stack-pointer bsp)))
 399 \f
 400
 401 \f
 402 ;;;; closure indexing
 403
 404 (define-full-reffer closure-index-ref *
 405   closure-info-offset fun-pointer-lowtag
 406   (any-reg descriptor-reg) * %closure-index-ref)
 407
 408 (define-full-setter set-funcallable-instance-info *
 409   funcallable-instance-info-offset fun-pointer-lowtag
 410   (any-reg descriptor-reg) * %set-funcallable-instance-info)
 411
 412 (define-full-reffer funcallable-instance-info *
 413   funcallable-instance-info-offset fun-pointer-lowtag
 414   (descriptor-reg any-reg) * %funcallable-instance-info)
 415
 416 (define-vop (closure-ref slot-ref)
 417   (:variant closure-info-offset fun-pointer-lowtag))
 418
 419 (define-vop (closure-init slot-set)
 420   (:variant closure-info-offset fun-pointer-lowtag))
 421 \f
 422 ;;;; value cell hackery
 423
 424 (define-vop (value-cell-ref cell-ref)
 425   (:variant value-cell-value-slot other-pointer-lowtag))
 426
 427 (define-vop (value-cell-set cell-set)
 428   (:variant value-cell-value-slot other-pointer-lowtag))
 429 \f
 430 ;;;; structure hackery
 431
 432 (define-vop (instance-length)
 433   (:policy :fast-safe)
 434   (:translate %instance-length)
 435   (:args (struct :scs (descriptor-reg)))
 436   (:results (res :scs (unsigned-reg)))
 437   (:result-types positive-fixnum)
 438   (:generator 4
 439     (loadw res struct 0 instance-pointer-lowtag)
 440     (inst shr res n-widetag-bits)))
 441
 442 (define-full-reffer instance-index-ref *
 443   instance-slots-offset instance-pointer-lowtag
 444   (any-reg descriptor-reg) *
 445   %instance-ref)
 446
 447 (define-full-setter instance-index-set *
 448   instance-slots-offset instance-pointer-lowtag
 449   (any-reg descriptor-reg) *
 450   %instance-set)
 451
 452 (define-full-compare-and-swap %compare-and-swap-instance-ref instance
 453   instance-slots-offset instance-pointer-lowtag
 454   (any-reg descriptor-reg) *
 455   %compare-and-swap-instance-ref)
 456 \f
 457 ;;;; code object frobbing
 458
 459 (define-full-reffer code-header-ref * 0 other-pointer-lowtag
 460   (any-reg descriptor-reg) * code-header-ref)
 461
 462 (define-full-setter code-header-set * 0 other-pointer-lowtag
 463   (any-reg descriptor-reg) * code-header-set)
 464 \f
 465 ;;;; raw instance slot accessors
 466
 467 (defun make-ea-for-raw-slot (object index instance-length n-words)
 468   (if (integerp instance-length)
 469       ;; For RAW-INSTANCE-INIT/* VOPs, which know the exact instance length
 470       ;; at compile time.
 471       (make-ea :dword
 472                :base object
 473                :disp (- (* (- instance-length instance-slots-offset index (1- n-words))
 474                            n-word-bytes)
 475                         instance-pointer-lowtag))
 476       (flet ((make-ea-using-value (value)
 477                (make-ea :dword :base object
 478                         :index instance-length
 479                         :scale 4
 480                         :disp (- (* (- instance-slots-offset n-words)
 481                                     n-word-bytes)
 482                                  instance-pointer-lowtag
 483                                  (* value n-word-bytes)))))
 484         (if (typep index 'tn)
 485             (sc-case index
 486               (any-reg (make-ea :dword
 487                                 :base object
 488                                 :index instance-length
 489                                 :disp (- (* (- instance-slots-offset n-words)
 490                                             n-word-bytes)
 491                                          instance-pointer-lowtag)))
 492               (immediate (make-ea-using-value (tn-value index))))
 493             (make-ea-using-value index)))))
 494
 495 (define-vop (raw-instance-ref/word)
 496   (:translate %raw-instance-ref/word)
 497   (:policy :fast-safe)
 498   (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
 499   (:arg-types * tagged-num)
 500   (:temporary (:sc unsigned-reg) tmp)
 501   (:results (value :scs (unsigned-reg)))
 502   (:result-types unsigned-num)
 503   (:generator 5
 504     (loadw tmp object 0 instance-pointer-lowtag)
 505     (inst shr tmp n-widetag-bits)
 506     (when (sc-is index any-reg)
 507       (inst shl tmp n-fixnum-tag-bits)
 508       (inst sub tmp index))
 509     (inst mov value (make-ea-for-raw-slot object index tmp 1))))
 510
 511 (define-vop (raw-instance-set/word)
 512   (:translate %raw-instance-set/word)
 513   (:policy :fast-safe)
 514   (:args (object :scs (descriptor-reg))
 515          (index :scs (any-reg immediate))
 516          (value :scs (unsigned-reg) :target result))
 517   (:arg-types * tagged-num unsigned-num)
 518   (:temporary (:sc unsigned-reg) tmp)
 519   (:results (result :scs (unsigned-reg)))
 520   (:result-types unsigned-num)
 521   (:generator 5
 522     (loadw tmp object 0 instance-pointer-lowtag)
 523     (inst shr tmp n-widetag-bits)
 524     (when (sc-is index any-reg)
 525       (inst shl tmp n-fixnum-tag-bits)
 526       (inst sub tmp index))
 527     (inst mov (make-ea-for-raw-slot object index tmp 1) value)
 528     (move result value)))
 529
 530 (define-vop (raw-instance-init/word)
 531   (:args (object :scs (descriptor-reg))
 532          (value :scs (unsigned-reg)))
 533   (:arg-types * unsigned-num)
 534   (:info instance-length index)
 535   (:generator 5
 536     (inst mov (make-ea-for-raw-slot object index instance-length 1) value)))
 537
 538 (define-vop (raw-instance-atomic-incf/word)
 539   (:translate %raw-instance-atomic-incf/word)
 540   (:policy :fast-safe)
 541   (:args (object :scs (descriptor-reg))
 542          (index :scs (any-reg immediate))
 543          (diff :scs (unsigned-reg) :target result))
 544   (:arg-types * tagged-num unsigned-num)
 545   (:temporary (:sc unsigned-reg) tmp)
 546   (:results (result :scs (unsigned-reg)))
 547   (:result-types unsigned-num)
 548   (:generator 5
 549     (loadw tmp object 0 instance-pointer-lowtag)
 550     (inst shr tmp n-widetag-bits)
 551     (when (sc-is index any-reg)
 552       (inst shl tmp n-fixnum-tag-bits)
 553       (inst sub tmp index))
 554     (inst xadd (make-ea-for-raw-slot object index tmp 1) diff :lock)
 555     (move result diff)))
 556
 557 (define-vop (raw-instance-ref/single)
 558   (:translate %raw-instance-ref/single)
 559   (:policy :fast-safe)
 560   (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
 561   (:arg-types * tagged-num)
 562   (:temporary (:sc unsigned-reg) tmp)
 563   (:results (value :scs (single-reg)))
 564   (:result-types single-float)
 565   (:generator 5
 566     (loadw tmp object 0 instance-pointer-lowtag)
 567     (inst shr tmp n-widetag-bits)
 568     (when (sc-is index any-reg)
 569       (inst shl tmp n-fixnum-tag-bits)
 570       (inst sub tmp index))
 571     (with-empty-tn@fp-top(value)
 572       (inst fld (make-ea-for-raw-slot object index tmp 1)))))
 573
 574 (define-vop (raw-instance-set/single)
 575   (:translate %raw-instance-set/single)
 576   (:policy :fast-safe)
 577   (:args (object :scs (descriptor-reg))
 578          (index :scs (any-reg immediate))
 579          (value :scs (single-reg) :target result))
 580   (:arg-types * tagged-num single-float)
 581   (:temporary (:sc unsigned-reg) tmp)
 582   (:results (result :scs (single-reg)))
 583   (:result-types single-float)
 584   (:generator 5
 585     (loadw tmp object 0 instance-pointer-lowtag)
 586     (inst shr tmp n-widetag-bits)
 587     (when (sc-is index any-reg)
 588       (inst shl tmp n-fixnum-tag-bits)
 589       (inst sub tmp index))
 590     (unless (zerop (tn-offset value))
 591       (inst fxch value))
 592     (inst fst (make-ea-for-raw-slot object index tmp 1))
 593     (cond
 594       ((zerop (tn-offset value))
 595         (unless (zerop (tn-offset result))
 596           (inst fst result)))
 597       ((zerop (tn-offset result))
 598         (inst fst value))
 599       (t
 600         (unless (location= value result)
 601           (inst fst result))
 602         (inst fxch value)))))
 603
 604 (define-vop (raw-instance-init/single)
 605   (:args (object :scs (descriptor-reg))
 606          (value :scs (single-reg)))
 607   (:arg-types * single-float)
 608   (:info instance-length index)
 609   (:generator 5
 610     (with-tn@fp-top (value)
 611       (inst fst (make-ea-for-raw-slot object index instance-length 1)))))
 612
 613 (define-vop (raw-instance-ref/double)
 614   (:translate %raw-instance-ref/double)
 615   (:policy :fast-safe)
 616   (:args (object :scs (descriptor-reg)) (index :scs (any-reg immediate)))
 617   (:arg-types * tagged-num)
 618   (:temporary (:sc unsigned-reg) tmp)
 619   (:results (value :scs (double-reg)))
 620   (:result-types double-float)
 621   (:generator 5
 622     (loadw tmp object 0 instance-pointer-lowtag)
 623     (inst shr tmp n-widetag-bits)
 624     (when (sc-is index any-reg)
 625       (inst shl tmp n-fixnum-tag-bits)
 626       (inst sub tmp index))
 627     (with-empty-tn@fp-top(value)
 628       (inst fldd (make-ea-for-raw-slot object index tmp 2)))))
 629
 630 (define-vop (raw-instance-set/double)
 631   (:translate %raw-instance-set/double)
 632   (:policy :fast-safe)
 633   (:args (object :scs (descriptor-reg))
 634          (index :scs (any-reg immediate))
 635          (value :scs (double-reg) :target result))
 636   (:arg-types * tagged-num double-float)
 637   (:temporary (:sc unsigned-reg) tmp)
 638   (:results (result :scs (double-reg)))
 639   (:result-types double-float)
 640   (:generator 5
 641     (loadw tmp object 0 instance-pointer-lowtag)
 642     (inst shr tmp n-widetag-bits)
 643     (when (sc-is index any-reg)
 644       (inst shl tmp n-fixnum-tag-bits)
 645       (inst sub tmp index))
 646     (unless (zerop (tn-offset value))
 647       (inst fxch value))
 648     (inst fstd (make-ea-for-raw-slot object index tmp 2))
 649     (cond
 650       ((zerop (tn-offset value))
 651         (unless (zerop (tn-offset result))
 652           (inst fstd result)))
 653       ((zerop (tn-offset result))
 654         (inst fstd value))
 655       (t
 656         (unless (location= value result)
 657           (inst fstd result))
 658         (inst fxch value)))))
 659
 660 (define-vop (raw-instance-init/double)
 661   (:args (object :scs (descriptor-reg))
 662          (value :scs (double-reg)))
 663   (:arg-types * double-float)
 664   (:info instance-length index)
 665   (:generator 5
 666     (with-tn@fp-top (value)
 667       (inst fstd (make-ea-for-raw-slot object index instance-length 2)))))
 668
 669 (define-vop (raw-instance-ref/complex-single)
 670   (:translate %raw-instance-ref/complex-single)
 671   (:policy :fast-safe)
 672   (:args (object :scs (descriptor-reg))
 673          (index :scs (any-reg immediate)))
 674   (:arg-types * positive-fixnum)
 675   (:temporary (:sc unsigned-reg) tmp)
 676   (:results (value :scs (complex-single-reg)))
 677   (:result-types complex-single-float)
 678   (:generator 5
 679     (loadw tmp object 0 instance-pointer-lowtag)
 680     (inst shr tmp n-widetag-bits)
 681     (when (sc-is index any-reg)
 682       (inst shl tmp n-fixnum-tag-bits)
 683       (inst sub tmp index))
 684     (let ((real-tn (complex-single-reg-real-tn value)))
 685       (with-empty-tn@fp-top (real-tn)
 686         (inst fld (make-ea-for-raw-slot object index tmp 2))))
 687     (let ((imag-tn (complex-single-reg-imag-tn value)))
 688       (with-empty-tn@fp-top (imag-tn)
 689         (inst fld (make-ea-for-raw-slot object index tmp 1))))))
 690
 691 (define-vop (raw-instance-set/complex-single)
 692   (:translate %raw-instance-set/complex-single)
 693   (:policy :fast-safe)
 694   (:args (object :scs (descriptor-reg))
 695          (index :scs (any-reg immediate))
 696          (value :scs (complex-single-reg) :target result))
 697   (:arg-types * positive-fixnum complex-single-float)
 698   (:temporary (:sc unsigned-reg) tmp)
 699   (:results (result :scs (complex-single-reg)))
 700   (:result-types complex-single-float)
 701   (:generator 5
 702     (loadw tmp object 0 instance-pointer-lowtag)
 703     (inst shr tmp n-widetag-bits)
 704     (when (sc-is index any-reg)
 705       (inst shl tmp n-fixnum-tag-bits)
 706       (inst sub tmp index))
 707     (let ((value-real (complex-single-reg-real-tn value))
 708           (result-real (complex-single-reg-real-tn result)))
 709       (cond ((zerop (tn-offset value-real))
 710              ;; Value is in ST0.
 711              (inst fst (make-ea-for-raw-slot object index tmp 2))
 712              (unless (zerop (tn-offset result-real))
 713                ;; Value is in ST0 but not result.
 714                (inst fst result-real)))
 715             (t
 716              ;; Value is not in ST0.
 717              (inst fxch value-real)
 718              (inst fst (make-ea-for-raw-slot object index tmp 2))
 719              (cond ((zerop (tn-offset result-real))
 720                     ;; The result is in ST0.
 721                     (inst fst value-real))
 722                    (t
 723                     ;; Neither value or result are in ST0
 724                     (unless (location= value-real result-real)
 725                       (inst fst result-real))
 726                     (inst fxch value-real))))))
 727     (let ((value-imag (complex-single-reg-imag-tn value))
 728           (result-imag (complex-single-reg-imag-tn result)))
 729       (inst fxch value-imag)
 730       (inst fst (make-ea-for-raw-slot object index tmp 1))
 731       (unless (location= value-imag result-imag)
 732         (inst fst result-imag))
 733       (inst fxch value-imag))))
 734
 735 (define-vop (raw-instance-init/complex-single)
 736   (:args (object :scs (descriptor-reg))
 737          (value :scs (complex-single-reg)))
 738   (:arg-types * complex-single-float)
 739   (:info instance-length index)
 740   (:generator 5
 741     (let ((value-real (complex-single-reg-real-tn value)))
 742       (with-tn@fp-top (value-real)
 743         (inst fst (make-ea-for-raw-slot object index instance-length 2))))
 744     (let ((value-imag (complex-single-reg-imag-tn value)))
 745       (with-tn@fp-top (value-imag)
 746         (inst fst (make-ea-for-raw-slot object index instance-length 1))))))
 747
 748 (define-vop (raw-instance-ref/complex-double)
 749   (:translate %raw-instance-ref/complex-double)
 750   (:policy :fast-safe)
 751   (:args (object :scs (descriptor-reg))
 752          (index :scs (any-reg immediate)))
 753   (:arg-types * positive-fixnum)
 754   (:temporary (:sc unsigned-reg) tmp)
 755   (:results (value :scs (complex-double-reg)))
 756   (:result-types complex-double-float)
 757   (:generator 7
 758     (loadw tmp object 0 instance-pointer-lowtag)
 759     (inst shr tmp n-widetag-bits)
 760     (when (sc-is index any-reg)
 761       (inst shl tmp n-fixnum-tag-bits)
 762       (inst sub tmp index))
 763     (let ((real-tn (complex-double-reg-real-tn value)))
 764       (with-empty-tn@fp-top (real-tn)
 765         (inst fldd (make-ea-for-raw-slot object index tmp 4))))
 766     (let ((imag-tn (complex-double-reg-imag-tn value)))
 767       (with-empty-tn@fp-top (imag-tn)
 768         (inst fldd (make-ea-for-raw-slot object index tmp 2))))))
 769
 770 (define-vop (raw-instance-set/complex-double)
 771   (:translate %raw-instance-set/complex-double)
 772   (:policy :fast-safe)
 773   (:args (object :scs (descriptor-reg))
 774          (index :scs (any-reg immediate))
 775          (value :scs (complex-double-reg) :target result))
 776   (:arg-types * positive-fixnum complex-double-float)
 777   (:temporary (:sc unsigned-reg) tmp)
 778   (:results (result :scs (complex-double-reg)))
 779   (:result-types complex-double-float)
 780   (:generator 20
 781     (loadw tmp object 0 instance-pointer-lowtag)
 782     (inst shr tmp n-widetag-bits)
 783     (when (sc-is index any-reg)
 784       (inst shl tmp n-fixnum-tag-bits)
 785       (inst sub tmp index))
 786     (let ((value-real (complex-double-reg-real-tn value))
 787           (result-real (complex-double-reg-real-tn result)))
 788       (cond ((zerop (tn-offset value-real))
 789              ;; Value is in ST0.
 790              (inst fstd (make-ea-for-raw-slot object index tmp 4))
 791              (unless (zerop (tn-offset result-real))
 792                ;; Value is in ST0 but not result.
 793                (inst fstd result-real)))
 794             (t
 795              ;; Value is not in ST0.
 796              (inst fxch value-real)
 797              (inst fstd (make-ea-for-raw-slot object index tmp 4))
 798              (cond ((zerop (tn-offset result-real))
 799                     ;; The result is in ST0.
 800                     (inst fstd value-real))
 801                    (t
 802                     ;; Neither value or result are in ST0
 803                     (unless (location= value-real result-real)
 804                       (inst fstd result-real))
 805                     (inst fxch value-real))))))
 806     (let ((value-imag (complex-double-reg-imag-tn value))
 807           (result-imag (complex-double-reg-imag-tn result)))
 808       (inst fxch value-imag)
 809       (inst fstd (make-ea-for-raw-slot object index tmp 2))
 810       (unless (location= value-imag result-imag)
 811         (inst fstd result-imag))
 812       (inst fxch value-imag))))
 813
 814 (define-vop (raw-instance-init/complex-double)
 815   (:args (object :scs (descriptor-reg))
 816          (value :scs (complex-double-reg)))
 817   (:arg-types * complex-double-float)
 818   (:info instance-length index)
 819   (:generator 20
 820     (let ((value-real (complex-double-reg-real-tn value)))
 821       (with-tn@fp-top (value-real)
 822         (inst fstd (make-ea-for-raw-slot object index instance-length 4))))
 823     (let ((value-imag (complex-double-reg-imag-tn value)))
 824       (with-tn@fp-top (value-imag)
 825         (inst fstd (make-ea-for-raw-slot object index instance-length 2))))))