src/compiler/alpha/cell.lisp

   1 ;;;; the VM definition of various primitive memory access VOPs for the
   2 ;;;; Alpha
   3
   4 ;;;; This software is part of the SBCL system. See the README file for
   5 ;;;; more information.
   6 ;;;;
   7 ;;;; This software is derived from the CMU CL system, which was
   8 ;;;; written at Carnegie Mellon University and released into the
   9 ;;;; public domain. The software is in the public domain and is
  10 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
  11 ;;;; files for more information.
  12
  13 (in-package "SB!VM")
  14 \f
  15 ;;;; data object ref/set stuff
  16
  17 (define-vop (slot)
  18   (:args (object :scs (descriptor-reg)))
  19   (:info name offset lowtag)
  20   (:ignore name)
  21   (:results (result :scs (descriptor-reg any-reg)))
  22   (:generator 1
  23     (loadw result object offset lowtag)))
  24
  25 (define-vop (set-slot)
  26   (:args (object :scs (descriptor-reg))
  27          (value :scs (descriptor-reg any-reg null zero)))
  28   (:info name offset lowtag #!+gengc remember)
  29   (:ignore name)
  30   (:results)
  31   (:generator 1
  32     #!+gengc
  33     (if remember
  34         (storew-and-remember-slot value object offset lowtag)
  35         (storew value object offset lowtag))
  36     #!-gengc
  37     (storew value object offset lowtag)))
  38
  39 (define-vop (init-slot set-slot))
  40 \f
  41 ;;;; symbol hacking VOPs
  42
  43 ;;; The compiler likes to be able to directly SET symbols.
  44 (define-vop (set cell-set)
  45   (:variant symbol-value-slot other-pointer-lowtag))
  46
  47 ;;; Do a cell ref with an error check for being unbound.
  48 (define-vop (checked-cell-ref)
  49   (:args (object :scs (descriptor-reg) :target obj-temp))
  50   (:results (value :scs (descriptor-reg any-reg)))
  51   (:policy :fast-safe)
  52   (:vop-var vop)
  53   (:save-p :compute-only)
  54   (:temporary (:scs (non-descriptor-reg)) temp)
  55   (:temporary (:scs (descriptor-reg) :from (:argument 0)) obj-temp))
  56
  57 ;;; With SYMBOL-VALUE, we check that the value isn't the trap object.
  58 ;;; So SYMBOL-VALUE of NIL is NIL.
  59 (define-vop (symbol-value checked-cell-ref)
  60   (:translate symbol-value)
  61   (:generator 9
  62     (move object obj-temp)
  63     (loadw value obj-temp symbol-value-slot other-pointer-lowtag)
  64     (let ((err-lab (generate-error-code vop 'unbound-symbol-error obj-temp)))
  65       (inst xor value unbound-marker-widetag temp)
  66       (inst beq temp err-lab))))
  67
  68 ;;; like CHECKED-CELL-REF, only we are a predicate to see if the cell
  69 ;;; is bound
  70 (define-vop (boundp-frob)
  71   (:args (object :scs (descriptor-reg)))
  72   (:conditional)
  73   (:info target not-p)
  74   (:policy :fast-safe)
  75   (:temporary (:scs (descriptor-reg)) value)
  76   (:temporary (:scs (non-descriptor-reg)) temp))
  77
  78 (define-vop (boundp boundp-frob)
  79   (:translate boundp)
  80   (:generator 9
  81     (loadw value object symbol-value-slot other-pointer-lowtag)
  82     (inst xor value unbound-marker-widetag temp)
  83     (if not-p
  84         (inst beq temp target)
  85         (inst bne temp target))))
  86
  87 (define-vop (fast-symbol-value cell-ref)
  88   (:variant symbol-value-slot other-pointer-lowtag)
  89   (:policy :fast)
  90   (:translate symbol-value))
  91
  92 (define-vop (symbol-hash)
  93   (:policy :fast-safe)
  94   (:translate symbol-hash)
  95   (:args (symbol :scs (descriptor-reg)))
  96   (:results (res :scs (any-reg)))
  97   (:result-types positive-fixnum)
  98   (:generator 2
  99     ;; The symbol-hash slot of NIL holds NIL because it is also the
 100     ;; cdr slot, so we have to strip off the two low bits to make sure
 101     ;; it is a fixnum.  The lowtag selection magic that is required to
 102     ;; ensure this is explained in the comment in objdef.lisp
 103     (loadw res symbol symbol-hash-slot other-pointer-lowtag)
 104     (inst bic res #.(ash lowtag-mask -1) res)))
 105
 106 ;;; On unithreaded builds these are just copies of the non-global versions.
 107 (define-vop (%set-symbol-global-value set))
 108 (define-vop (symbol-global-value symbol-value)
 109   (:translate symbol-global-value))
 110 (define-vop (fast-symbol-global-value fast-symbol-value)
 111   (:translate symbol-global-value))
 112 \f
 113 ;;;; fdefinition (FDEFN) objects
 114
 115 (define-vop (fdefn-fun cell-ref)
 116   (:variant fdefn-fun-slot other-pointer-lowtag))
 117
 118 (define-vop (safe-fdefn-fun)
 119   (:translate safe-fdefn-fun)
 120   (:policy :fast-safe)
 121   (:args (object :scs (descriptor-reg) :target obj-temp))
 122   (:results (value :scs (descriptor-reg any-reg)))
 123   (:vop-var vop)
 124   (:save-p :compute-only)
 125   (:temporary (:scs (descriptor-reg) :from (:argument 0)) obj-temp)
 126   (:temporary (:scs (non-descriptor-reg)) temp)
 127   (:generator 10
 128     (move object obj-temp)
 129     (loadw value obj-temp fdefn-fun-slot other-pointer-lowtag)
 130     (let ((err-lab (generate-error-code vop 'undefined-fun-error obj-temp)))
 131       (inst cmpeq value null-tn temp)
 132       (inst bne temp err-lab))))
 133
 134 (define-vop (set-fdefn-fun)
 135   (:policy :fast-safe)
 136   (:translate (setf fdefn-fun))
 137   (:args (function :scs (descriptor-reg) :target result)
 138          (fdefn :scs (descriptor-reg)))
 139   (:temporary (:scs (interior-reg)) lip)
 140   (:temporary (:scs (non-descriptor-reg)) type)
 141   (:results (result :scs (descriptor-reg)))
 142   (:generator 38
 143     (let ((normal-fn (gen-label)))
 144       (load-type type function (- fun-pointer-lowtag))
 145       (inst xor type simple-fun-header-widetag type)
 146       (inst addq function
 147             (- (ash simple-fun-code-offset word-shift) fun-pointer-lowtag)
 148             lip)
 149       (inst beq type normal-fn)
 150       (inst li (make-fixup "closure_tramp" :foreign) lip)
 151       (emit-label normal-fn)
 152       (storew lip fdefn fdefn-raw-addr-slot other-pointer-lowtag)
 153       (storew function fdefn fdefn-fun-slot other-pointer-lowtag)
 154       (move function result))))
 155
 156
 157 (define-vop (fdefn-makunbound)
 158   (:policy :fast-safe)
 159   (:translate fdefn-makunbound)
 160   (:args (fdefn :scs (descriptor-reg) :target result))
 161   (:temporary (:scs (non-descriptor-reg)) temp)
 162   (:results (result :scs (descriptor-reg)))
 163   (:generator 38
 164     (storew null-tn fdefn fdefn-fun-slot other-pointer-lowtag)
 165     (inst li (make-fixup "undefined_tramp" :foreign) temp)
 166     (move fdefn result)
 167     (storew temp fdefn fdefn-raw-addr-slot other-pointer-lowtag)))
 168 \f
 169 ;;;; binding and Unbinding
 170
 171 ;;; Establish VAL as a binding for SYMBOL. Save the old value and the
 172 ;;; symbol on the binding stack and stuff the new value into the symbol.
 173 ;;;
 174 ;;; See the "Chapter 9: Specials" of the SBCL Internals Manual.
 175
 176 (define-vop (bind)
 177   (:args (val :scs (any-reg descriptor-reg))
 178          (symbol :scs (descriptor-reg)))
 179   (:temporary (:scs (descriptor-reg)) temp)
 180   (:generator 5
 181     (loadw temp symbol symbol-value-slot other-pointer-lowtag)
 182     (inst addq bsp-tn (* 2 n-word-bytes) bsp-tn)
 183     (storew temp bsp-tn (- binding-value-slot binding-size))
 184     (storew symbol bsp-tn (- binding-symbol-slot binding-size))
 185     (#!+gengc storew-and-remember-slot #!-gengc storew
 186              val symbol symbol-value-slot other-pointer-lowtag)))
 187
 188
 189 (define-vop (unbind)
 190   (:temporary (:scs (descriptor-reg)) symbol value)
 191   (:generator 0
 192     (loadw symbol bsp-tn (- binding-symbol-slot binding-size))
 193     (loadw value bsp-tn (- binding-value-slot binding-size))
 194     (#!+gengc storew-and-remember-slot #!-gengc storew
 195              value symbol symbol-value-slot other-pointer-lowtag)
 196     (storew zero-tn bsp-tn (- binding-symbol-slot binding-size))
 197     (storew zero-tn bsp-tn (- binding-value-slot binding-size))
 198     (inst subq bsp-tn (* 2 n-word-bytes) bsp-tn)))
 199
 200
 201 (define-vop (unbind-to-here)
 202   (:args (arg :scs (descriptor-reg any-reg) :target where))
 203   (:temporary (:scs (any-reg) :from (:argument 0)) where)
 204   (:temporary (:scs (descriptor-reg)) symbol value)
 205   (:temporary (:scs (non-descriptor-reg)) temp)
 206   (:generator 0
 207     (let ((loop (gen-label))
 208           (skip (gen-label))
 209           (done (gen-label)))
 210       (move arg where)
 211       (inst cmpeq where bsp-tn temp)
 212       (inst bne temp done)
 213
 214       (emit-label loop)
 215       (loadw symbol bsp-tn (- binding-symbol-slot binding-size))
 216       (loadw value bsp-tn (- binding-value-slot binding-size))
 217       (inst beq symbol skip)
 218       (#!+gengc storew-and-remember-slot #!-gengc storew
 219                value symbol symbol-value-slot other-pointer-lowtag)
 220       (storew zero-tn bsp-tn (- binding-symbol-slot binding-size))
 221
 222       (emit-label skip)
 223       (storew zero-tn bsp-tn (- binding-value-slot binding-size))
 224       (inst subq bsp-tn (* 2 n-word-bytes) bsp-tn)
 225       (inst cmpeq where bsp-tn temp)
 226       (inst beq temp loop)
 227
 228       (emit-label done))))
 229 \f
 230 ;;;; closure indexing
 231
 232 (define-full-reffer closure-index-ref *
 233   closure-info-offset fun-pointer-lowtag
 234   (descriptor-reg any-reg) * %closure-index-ref)
 235
 236 (define-full-setter set-funcallable-instance-info *
 237   funcallable-instance-info-offset fun-pointer-lowtag
 238   (descriptor-reg any-reg null zero) * %set-funcallable-instance-info)
 239
 240 (define-full-reffer funcallable-instance-info *
 241   funcallable-instance-info-offset fun-pointer-lowtag
 242   (descriptor-reg any-reg) * %funcallable-instance-info)
 243
 244 (define-vop (closure-ref slot-ref)
 245   (:variant closure-info-offset fun-pointer-lowtag))
 246
 247 (define-vop (closure-init slot-set)
 248   (:variant closure-info-offset fun-pointer-lowtag))
 249
 250 (define-vop (closure-init-from-fp)
 251   (:args (object :scs (descriptor-reg)))
 252   (:info offset)
 253   (:generator 4
 254     (storew cfp-tn object (+ closure-info-offset offset) fun-pointer-lowtag)))
 255 \f
 256 ;;;; value cell hackery
 257
 258 (define-vop (value-cell-ref cell-ref)
 259   (:variant value-cell-value-slot other-pointer-lowtag))
 260
 261 (define-vop (value-cell-set cell-set)
 262   (:variant value-cell-value-slot other-pointer-lowtag))
 263 \f
 264 ;;;; instance hackery
 265
 266 (define-vop (instance-length)
 267   (:policy :fast-safe)
 268   (:translate %instance-length)
 269   (:args (struct :scs (descriptor-reg)))
 270   (:results (res :scs (unsigned-reg)))
 271   (:result-types positive-fixnum)
 272   (:generator 4
 273     (loadw res struct 0 instance-pointer-lowtag)
 274     (inst srl res n-widetag-bits res)))
 275
 276 (define-full-reffer instance-index-ref * instance-slots-offset
 277   instance-pointer-lowtag (descriptor-reg any-reg) * %instance-ref)
 278
 279 (define-full-setter instance-index-set * instance-slots-offset
 280   instance-pointer-lowtag (descriptor-reg any-reg null zero) * %instance-set)
 281 \f
 282 ;;;; code object frobbing
 283
 284 (define-full-reffer code-header-ref * 0 other-pointer-lowtag
 285   (descriptor-reg any-reg) * code-header-ref)
 286
 287 (define-full-setter code-header-set * 0 other-pointer-lowtag
 288   (descriptor-reg any-reg null zero) * code-header-set)
 289 \f
 290 ;;;; mutator accessing
 291
 292 #!+gengc
 293 (progn
 294
 295 (eval-when (:compile-toplevel :load-toplevel :execute)
 296   ;; SBCL has never had GENGC. Now that we have Alpha support, it
 297   ;; would probably be nice to restore GENGC support so that the Alpha
 298   ;; doesn't have to crawl along with stop'n'copy. When we do, the CMU
 299   ;; CL code below will need updating to the SBCL way of looking at
 300   ;; things, e.g. at least using "SB-KERNEL" or "SB!KERNEL" instead of
 301   ;; :KERNEL. -- WHN 2001-05-08
 302   (error "This code is stale as of sbcl-0.6.12."))
 303
 304 (define-vop (mutator-ub32-ref)
 305   (:policy :fast-safe)
 306   (:args)
 307   (:results (res :scs (unsigned-reg)))
 308   (:result-types unsigned-num)
 309   (:variant-vars slot)
 310   (:generator 2
 311     (loadw res mutator-tn slot)))
 312
 313 (define-vop (mutator-descriptor-ref mutator-ub32-ref)
 314   (:results (res :scs (any-reg descriptor-reg)))
 315   (:result-types *))
 316
 317 (define-vop (mutator-sap-ref mutator-ub32-ref)
 318   (:results (res :scs (sap-reg)))
 319   (:result-types system-area-pointer))
 320
 321
 322 (define-vop (mutator-ub32-set)
 323   (:policy :fast-safe)
 324   (:args (arg :scs (unsigned-reg) :target res))
 325   (:arg-types unsigned-num)
 326   (:results (res :scs (unsigned-reg)))
 327   (:result-types unsigned-num)
 328   (:variant-vars slot)
 329   (:generator 2
 330     (storew arg mutator-tn slot)
 331     (move res arg)))
 332
 333 (define-vop (mutator-descriptor-set mutator-ub32-set)
 334   (:args (arg :scs (any-reg descriptor-reg null zero) :target res))
 335   (:arg-types *)
 336   (:results (res :scs (any-reg descriptor-reg)))
 337   (:result-types *))
 338
 339 (define-vop (mutator-sap-set mutator-ub32-set)
 340   (:args (arg :scs (sap-reg) :target res))
 341   (:arg-types system-area-pointer)
 342   (:results (res :scs (sap-reg)))
 343   (:result-types system-area-pointer))
 344
 345
 346 (macrolet ((define-mutator-accessors (slot type writable)
 347              (let ((ref (symbolicate "MUTATOR-" slot "-REF"))
 348                    (set (and writable (symbolicate "MUTATOR-" slot "-SET")))
 349                    (offset (symbolicate "MUTATOR-" slot "-SLOT"))
 350                    (fn
 351                     (let ((*package* (find-package :kernel)))
 352              (symbolicate "MUTATOR-" slot))))
 353                (multiple-value-bind
 354                    (lisp-type ref-vop set-vop)
 355                    (ecase type
 356                      (:des
 357                       (values t
 358                               'mutator-descriptor-ref
 359                               'mutator-descriptor-set))
 360                      (:ub32
 361                       (values '(unsigned-byte 32)
 362                               'mutator-ub32-ref
 363                               'mutator-ub32-set))
 364                      (:sap
 365                       (values 'system-area-pointer
 366                               'mutator-sap-ref
 367                               'mutator-sap-set)))
 368                  `(progn
 369                     (export ',fn :kernel)
 370                     (defknown ,fn () ,lisp-type (flushable))
 371                     (define-vop (,ref ,ref-vop)
 372                       (:translate ,fn)
 373                       (:variant ,offset))
 374                     ,@(when writable
 375                         `((defknown ((setf ,fn)) (,lisp-type) ,lisp-type
 376                             ())
 377                           (define-vop (,set ,set-vop)
 378                             (:translate (setf ,fn))
 379                             (:variant ,offset)))))))))
 380   (define-mutator-accessors thread :des t)
 381   (define-mutator-accessors suspends-disabled-count :ub32 t)
 382   (define-mutator-accessors suspend-pending :ub32 t)
 383   (define-mutator-accessors control-stack-base :sap nil)
 384   (define-mutator-accessors control-stack-end :sap nil)
 385   (define-mutator-accessors current-unwind-protect :sap nil)
 386   (define-mutator-accessors current-catch-block :sap nil)
 387   (define-mutator-accessors binding-stack-base :sap nil)
 388   (define-mutator-accessors binding-stack-end :sap nil)
 389   (define-mutator-accessors number-stack-base :sap nil)
 390   (define-mutator-accessors number-stack-end :sap nil)
 391   (define-mutator-accessors nursery-start :sap nil)
 392   (define-mutator-accessors nursery-end :sap nil)
 393   (define-mutator-accessors storebuf-start :sap nil)
 394   (define-mutator-accessors storebuf-end :sap nil)
 395   (define-mutator-accessors words-consed :ub32 nil))
 396
 397 ); #+gengc progn
 398
 399
 400 \f
 401 ;;;; raw instance slot accessors
 402
 403 (define-vop (raw-instance-ref/word)
 404   (:translate %raw-instance-ref/word)
 405   (:policy :fast-safe)
 406   (:args (object :scs (descriptor-reg))
 407          (index :scs (any-reg)))
 408   (:arg-types * positive-fixnum)
 409   (:results (value :scs (unsigned-reg)))
 410   (:temporary (:scs (non-descriptor-reg)) offset)
 411   (:temporary (:scs (interior-reg)) lip)
 412   (:result-types unsigned-num)
 413   (:generator 5
 414     (loadw offset object 0 instance-pointer-lowtag)
 415     (inst srl offset n-widetag-bits offset)
 416     (inst sll offset 2 offset)
 417     (inst subq offset index offset)
 418     (inst subq offset n-word-bytes offset)
 419     (inst addq object offset lip)
 420     (inst ldl
 421           value
 422           (- (* instance-slots-offset n-word-bytes)
 423              instance-pointer-lowtag)
 424           lip)
 425     (inst mskll value 4 value)))
 426
 427 (define-vop (raw-instance-set/word)
 428   (:translate %raw-instance-set/word)
 429   (:policy :fast-safe)
 430   (:args (object :scs (descriptor-reg))
 431          (index :scs (any-reg))
 432          (value :scs (unsigned-reg)))
 433   (:arg-types * positive-fixnum unsigned-num)
 434   (:results (result :scs (unsigned-reg)))
 435   (:temporary (:scs (non-descriptor-reg)) offset)
 436   (:temporary (:scs (interior-reg)) lip)
 437   (:result-types unsigned-num)
 438   (:generator 5
 439     (loadw offset object 0 instance-pointer-lowtag)
 440     (inst srl offset n-widetag-bits offset)
 441     (inst sll offset 2 offset)
 442     (inst subq offset index offset)
 443     (inst subq offset n-word-bytes offset)
 444     (inst addq object offset lip)
 445     (inst stl
 446           value
 447           (- (* instance-slots-offset n-word-bytes)
 448              instance-pointer-lowtag)
 449           lip)
 450     (move value result)))
 451
 452 (define-vop (raw-instance-ref/single)
 453   (:translate %raw-instance-ref/single)
 454   (:policy :fast-safe)
 455   (:args (object :scs (descriptor-reg))
 456          (index :scs (any-reg)))
 457   (:arg-types * positive-fixnum)
 458   (:results (value :scs (single-reg)))
 459   (:temporary (:scs (non-descriptor-reg)) offset)
 460   (:temporary (:scs (interior-reg)) lip)
 461   (:result-types single-float)
 462   (:generator 5
 463     (loadw offset object 0 instance-pointer-lowtag)
 464     (inst srl offset n-widetag-bits offset)
 465     (inst sll offset 2 offset)
 466     (inst subq offset index offset)
 467     (inst subq offset n-word-bytes offset)
 468     (inst addq object offset lip)
 469     (inst lds
 470           value
 471           (- (* instance-slots-offset n-word-bytes)
 472              instance-pointer-lowtag)
 473           lip)))
 474
 475 (define-vop (raw-instance-set/single)
 476   (:translate %raw-instance-set/single)
 477   (:policy :fast-safe)
 478   (:args (object :scs (descriptor-reg))
 479          (index :scs (any-reg))
 480          (value :scs (single-reg)))
 481   (:arg-types * positive-fixnum single-float)
 482   (:results (result :scs (single-reg)))
 483   (:temporary (:scs (non-descriptor-reg)) offset)
 484   (:temporary (:scs (interior-reg)) lip)
 485   (:result-types single-float)
 486   (:generator 5
 487     (loadw offset object 0 instance-pointer-lowtag)
 488     (inst srl offset n-widetag-bits offset)
 489     (inst sll offset 2 offset)
 490     (inst subq offset index offset)
 491     (inst subq offset n-word-bytes offset)
 492     (inst addq object offset lip)
 493     (inst sts
 494           value
 495           (- (* instance-slots-offset n-word-bytes)
 496              instance-pointer-lowtag)
 497           lip)
 498     (unless (location= result value)
 499       (inst fmove value result))))
 500
 501 (define-vop (raw-instance-ref/double)
 502   (:translate %raw-instance-ref/double)
 503   (:policy :fast-safe)
 504   (:args (object :scs (descriptor-reg))
 505          (index :scs (any-reg)))
 506   (:arg-types * positive-fixnum)
 507   (:results (value :scs (double-reg)))
 508   (:temporary (:scs (non-descriptor-reg)) offset)
 509   (:temporary (:scs (interior-reg)) lip)
 510   (:result-types double-float)
 511   (:generator 5
 512     (loadw offset object 0 instance-pointer-lowtag)
 513     (inst srl offset n-widetag-bits offset)
 514     (inst sll offset 2 offset)
 515     (inst subq offset index offset)
 516     (inst subq offset (* 2 n-word-bytes) offset)
 517     (inst addq object offset lip)
 518     (inst ldt
 519           value
 520           (- (* instance-slots-offset n-word-bytes)
 521              instance-pointer-lowtag)
 522           lip)))
 523
 524 (define-vop (raw-instance-set/double)
 525   (:translate %raw-instance-set/double)
 526   (:policy :fast-safe)
 527   (:args (object :scs (descriptor-reg))
 528          (index :scs (any-reg))
 529          (value :scs (double-reg)))
 530   (:arg-types * positive-fixnum double-float)
 531   (:results (result :scs (double-reg)))
 532   (:temporary (:scs (non-descriptor-reg)) offset)
 533   (:temporary (:scs (interior-reg)) lip)
 534   (:result-types double-float)
 535   (:generator 5
 536     (loadw offset object 0 instance-pointer-lowtag)
 537     (inst srl offset n-widetag-bits offset)
 538     (inst sll offset 2 offset)
 539     (inst subq offset index offset)
 540     (inst subq offset (* 2 n-word-bytes) offset)
 541     (inst addq object offset lip)
 542     (inst stt
 543           value
 544           (- (* instance-slots-offset n-word-bytes)
 545              instance-pointer-lowtag)
 546           lip)
 547     (unless (location= result value)
 548       (inst fmove value result))))
 549
 550 (define-vop (raw-instance-ref/complex-single)
 551   (:translate %raw-instance-ref/complex-single)
 552   (:policy :fast-safe)
 553   (:args (object :scs (descriptor-reg))
 554          (index :scs (any-reg)))
 555   (:arg-types * positive-fixnum)
 556   (:results (value :scs (complex-single-reg)))
 557   (:temporary (:scs (non-descriptor-reg)) offset)
 558   (:temporary (:scs (interior-reg)) lip)
 559   (:result-types complex-single-float)
 560   (:generator 5
 561     (loadw offset object 0 instance-pointer-lowtag)
 562     (inst srl offset n-widetag-bits offset)
 563     (inst sll offset 2 offset)
 564     (inst subq offset index offset)
 565     (inst subq offset (* 2 n-word-bytes) offset)
 566     (inst addq object offset lip)
 567     (inst lds
 568           (complex-double-reg-real-tn value)
 569           (- (* instance-slots-offset n-word-bytes)
 570              instance-pointer-lowtag)
 571           lip)
 572     (inst lds
 573           (complex-double-reg-imag-tn value)
 574           (- (* (1+ instance-slots-offset) n-word-bytes)
 575              instance-pointer-lowtag)
 576           lip)))
 577
 578 (define-vop (raw-instance-set/complex-single)
 579   (:translate %raw-instance-set/complex-single)
 580   (:policy :fast-safe)
 581   (:args (object :scs (descriptor-reg))
 582          (index :scs (any-reg))
 583          (value :scs (complex-single-reg)))
 584   (:arg-types * positive-fixnum complex-single-float)
 585   (:results (result :scs (complex-single-reg)))
 586   (:temporary (:scs (non-descriptor-reg)) offset)
 587   (:temporary (:scs (interior-reg)) lip)
 588   (:result-types complex-single-float)
 589   (:generator 5
 590     (loadw offset object 0 instance-pointer-lowtag)
 591     (inst srl offset n-widetag-bits offset)
 592     (inst sll offset 2 offset)
 593     (inst subq offset index offset)
 594     (inst subq offset (* 2 n-word-bytes) offset)
 595     (inst addq object offset lip)
 596     (let ((value-real (complex-single-reg-real-tn value))
 597           (result-real (complex-single-reg-real-tn result)))
 598       (inst sts
 599             value-real
 600             (- (* instance-slots-offset n-word-bytes)
 601                instance-pointer-lowtag)
 602             lip)
 603       (unless (location= result-real value-real)
 604         (inst fmove value-real result-real)))
 605     (let ((value-imag (complex-single-reg-imag-tn value))
 606           (result-imag (complex-single-reg-imag-tn result)))
 607       (inst sts
 608             value-imag
 609             (- (* (1+ instance-slots-offset) n-word-bytes)
 610                instance-pointer-lowtag)
 611             lip)
 612       (unless (location= result-imag value-imag)
 613         (inst fmove value-imag result-imag)))))
 614
 615 (define-vop (raw-instance-ref/complex-double)
 616   (:translate %raw-instance-ref/complex-double)
 617   (:policy :fast-safe)
 618   (:args (object :scs (descriptor-reg))
 619          (index :scs (any-reg)))
 620   (:arg-types * positive-fixnum)
 621   (:results (value :scs (complex-double-reg)))
 622   (:temporary (:scs (non-descriptor-reg)) offset)
 623   (:temporary (:scs (interior-reg)) lip)
 624   (:result-types complex-double-float)
 625   (:generator 5
 626     (loadw offset object 0 instance-pointer-lowtag)
 627     (inst srl offset n-widetag-bits offset)
 628     (inst sll offset 2 offset)
 629     (inst subq offset index offset)
 630     (inst subq offset (* 4 n-word-bytes) offset)
 631     (inst addq object offset lip)
 632     (inst ldt
 633           (complex-double-reg-real-tn value)
 634           (- (* instance-slots-offset n-word-bytes)
 635              instance-pointer-lowtag)
 636           lip)
 637     (inst ldt
 638           (complex-double-reg-imag-tn value)
 639           (- (* (+ instance-slots-offset 2) n-word-bytes)
 640              instance-pointer-lowtag)
 641           lip)))
 642
 643 (define-vop (raw-instance-set/complex-double)
 644   (:translate %raw-instance-set/complex-double)
 645   (:policy :fast-safe)
 646   (:args (object :scs (descriptor-reg))
 647          (index :scs (any-reg))
 648          (value :scs (complex-double-reg)))
 649   (:arg-types * positive-fixnum complex-double-float)
 650   (:results (result :scs (complex-double-reg)))
 651   (:temporary (:scs (non-descriptor-reg)) offset)
 652   (:temporary (:scs (interior-reg)) lip)
 653   (:result-types complex-double-float)
 654   (:generator 5
 655     (loadw offset object 0 instance-pointer-lowtag)
 656     (inst srl offset n-widetag-bits offset)
 657     (inst sll offset 2 offset)
 658     (inst subq offset index offset)
 659     (inst subq offset (* 4 n-word-bytes) offset)
 660     (inst addq object offset lip)
 661     (let ((value-real (complex-double-reg-real-tn value))
 662           (result-real (complex-double-reg-real-tn result)))
 663       (inst stt
 664             value-real
 665             (- (* instance-slots-offset n-word-bytes)
 666                instance-pointer-lowtag)
 667             lip)
 668       (unless (location= result-real value-real)
 669         (inst fmove value-real result-real)))
 670     (let ((value-imag (complex-double-reg-imag-tn value))
 671           (result-imag (complex-double-reg-imag-tn result)))
 672       (inst stt
 673             value-imag
 674             (- (* (+ instance-slots-offset 2) n-word-bytes)
 675                instance-pointer-lowtag)
 676             lip)
 677       (unless (location= result-imag value-imag)
 678         (inst fmove value-imag result-imag)))))