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array.lisp
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array.lisp
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;;;; the Sparc definitions for array operations
;;;; This software is part of the SBCL system. See the README file for
;;;; more information.
;;;;
;;;; This software is derived from the CMU CL system, which was
;;;; written at Carnegie Mellon University and released into the
;;;; public domain. The software is in the public domain and is
;;;; provided with absolutely no warranty. See the COPYING and CREDITS
;;;; files for more information.
(in-package "SB!VM")
;;;; allocator for the array header.
(define-vop (make-array-header)
(:translate make-array-header)
(:policy :fast-safe)
(:args (type :scs (any-reg))
(rank :scs (any-reg)))
(:arg-types tagged-num tagged-num)
(:temporary (:scs (descriptor-reg) :to (:result 0) :target result) header)
(:temporary (:scs (non-descriptor-reg)) ndescr)
(:temporary (:scs (non-descriptor-reg)) gencgc-temp)
(:results (result :scs (descriptor-reg)))
(:generator 0
(pseudo-atomic ()
(inst add ndescr rank (+ (* (1+ array-dimensions-offset) n-word-bytes)
lowtag-mask))
(inst andn ndescr lowtag-mask)
(allocation header ndescr other-pointer-lowtag :temp-tn gencgc-temp)
(inst add ndescr rank (fixnumize (1- array-dimensions-offset)))
(inst sll ndescr ndescr n-widetag-bits)
(inst or ndescr ndescr type)
;; Remove the extraneous fixnum tag bits because TYPE and RANK
;; were fixnums
(inst srl ndescr ndescr n-fixnum-tag-bits)
(storew ndescr header 0 other-pointer-lowtag))
(move result header)))
;;;; Additional accessors and setters for the array header.
(define-vop (%array-dimension word-index-ref)
(:translate sb!kernel:%array-dimension)
(:policy :fast-safe)
(:variant array-dimensions-offset other-pointer-lowtag))
(define-vop (%set-array-dimension word-index-set)
(:translate sb!kernel:%set-array-dimension)
(:policy :fast-safe)
(:variant array-dimensions-offset other-pointer-lowtag))
(define-vop (array-rank-vop)
(:translate sb!kernel:%array-rank)
(:policy :fast-safe)
(:args (x :scs (descriptor-reg)))
(:temporary (:scs (non-descriptor-reg)) temp)
(:results (res :scs (any-reg descriptor-reg)))
(:generator 6
(loadw temp x 0 other-pointer-lowtag)
(inst sra temp n-widetag-bits)
(inst sub temp (1- array-dimensions-offset))
(inst sll res temp n-fixnum-tag-bits)))
;;;; Bounds checking routine.
(define-vop (check-bound)
(:translate %check-bound)
(:policy :fast-safe)
(:args (array :scs (descriptor-reg))
(bound :scs (any-reg descriptor-reg))
(index :scs (any-reg descriptor-reg) :target result))
(:results (result :scs (any-reg descriptor-reg)))
(:vop-var vop)
(:save-p :compute-only)
(:generator 5
(let ((error (generate-error-code vop invalid-array-index-error
array bound index)))
(inst cmp index bound)
(inst b :geu error)
(inst nop)
(move result index))))
;;;; Accessors/Setters
;;; Variants built on top of word-index-ref, etc. I.e. those vectors whos
;;; elements are represented in integer registers and are built out of
;;; 8, 16, or 32 bit elements.
(macrolet ((def-data-vector-frobs (type variant element-type &rest scs)
`(progn
(define-vop (,(symbolicate "DATA-VECTOR-REF/" (string type))
,(symbolicate (string variant) "-REF"))
(:note "inline array access")
(:variant vector-data-offset other-pointer-lowtag)
(:translate data-vector-ref)
(:arg-types ,type positive-fixnum)
(:results (value :scs ,scs))
(:result-types ,element-type))
(define-vop (,(symbolicate "DATA-VECTOR-SET/" (string type))
,(symbolicate (string variant) "-SET"))
(:note "inline array store")
(:variant vector-data-offset other-pointer-lowtag)
(:translate data-vector-set)
(:arg-types ,type positive-fixnum ,element-type)
(:args (object :scs (descriptor-reg))
(index :scs (any-reg zero immediate))
(value :scs ,scs))
(:results (result :scs ,scs))
(:result-types ,element-type)))))
(def-data-vector-frobs simple-base-string byte-index
character character-reg)
#!+sb-unicode
(def-data-vector-frobs simple-character-string word-index
character character-reg)
(def-data-vector-frobs simple-vector word-index
* descriptor-reg any-reg)
(def-data-vector-frobs simple-array-unsigned-byte-7 byte-index
positive-fixnum unsigned-reg)
(def-data-vector-frobs simple-array-unsigned-byte-8 byte-index
positive-fixnum unsigned-reg)
(def-data-vector-frobs simple-array-unsigned-byte-15 halfword-index
positive-fixnum unsigned-reg)
(def-data-vector-frobs simple-array-unsigned-byte-16 halfword-index
positive-fixnum unsigned-reg)
(def-data-vector-frobs simple-array-unsigned-byte-31 word-index
unsigned-num unsigned-reg)
(def-data-vector-frobs simple-array-unsigned-byte-32 word-index
unsigned-num unsigned-reg)
(def-data-vector-frobs simple-array-unsigned-fixnum word-index
positive-fixnum any-reg)
(def-data-vector-frobs simple-array-fixnum word-index
tagged-num any-reg)
(def-data-vector-frobs simple-array-signed-byte-32 word-index
signed-num signed-reg))
;;; Integer vectors whose elements are smaller than a byte. I.e. bit, 2-bit,
;;; and 4-bit vectors.
(macrolet ((def-small-data-vector-frobs (type bits)
(let* ((elements-per-word (floor n-word-bits bits))
(bit-shift (1- (integer-length elements-per-word))))
`(progn
(define-vop (,(symbolicate "DATA-VECTOR-REF/" type))
(:note "inline array access")
(:translate data-vector-ref)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg))
(index :scs (unsigned-reg)))
(:arg-types ,type positive-fixnum)
(:results (value :scs (any-reg)))
(:result-types positive-fixnum)
(:temporary (:scs (non-descriptor-reg) :to (:result 0)) temp result)
(:generator 20
(inst srl temp index ,bit-shift)
(inst sll temp n-fixnum-tag-bits)
(inst add temp (- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(inst ld result object temp)
(inst and temp index ,(1- elements-per-word))
(inst xor temp ,(1- elements-per-word))
,@(unless (= bits 1)
`((inst sll temp ,(1- (integer-length bits)))))
(inst srl result temp)
(inst and result ,(1- (ash 1 bits)))
(inst sll value result 2)))
(define-vop (,(symbolicate "DATA-VECTOR-REF-C/" type))
(:translate data-vector-ref)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg)))
(:arg-types ,type (:constant index))
(:info index)
(:results (result :scs (unsigned-reg)))
(:result-types positive-fixnum)
(:temporary (:scs (non-descriptor-reg)) temp)
(:generator 15
(multiple-value-bind (word extra)
(floor index ,elements-per-word)
(setf extra (logxor extra (1- ,elements-per-word)))
(let ((offset (- (* (+ word vector-data-offset) n-word-bytes)
other-pointer-lowtag)))
(cond ((typep offset '(signed-byte 13))
(inst ld result object offset))
(t
(inst li temp offset)
(inst ld result object temp))))
(unless (zerop extra)
(inst srl result (* extra ,bits)))
(unless (= extra ,(1- elements-per-word))
(inst and result ,(1- (ash 1 bits)))))))
(define-vop (,(symbolicate "DATA-VECTOR-SET/" type))
(:note "inline array store")
(:translate data-vector-set)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg))
(index :scs (unsigned-reg) :target shift)
(value :scs (unsigned-reg zero immediate) :target result))
(:arg-types ,type positive-fixnum positive-fixnum)
(:results (result :scs (unsigned-reg)))
(:result-types positive-fixnum)
(:temporary (:scs (non-descriptor-reg)) temp old offset)
(:temporary (:scs (non-descriptor-reg) :from (:argument 1)) shift)
(:generator 25
(inst srl offset index ,bit-shift)
(inst sll offset n-fixnum-tag-bits)
(inst add offset (- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(inst ld old object offset)
(inst and shift index ,(1- elements-per-word))
(inst xor shift ,(1- elements-per-word))
,@(unless (= bits 1)
`((inst sll shift ,(1- (integer-length bits)))))
(unless (and (sc-is value immediate)
(= (tn-value value) ,(1- (ash 1 bits))))
(inst li temp ,(1- (ash 1 bits)))
(inst sll temp shift)
(inst not temp)
(inst and old temp))
(unless (sc-is value zero)
(sc-case value
(immediate
(inst li temp (logand (tn-value value) ,(1- (ash 1 bits)))))
(unsigned-reg
(inst and temp value ,(1- (ash 1 bits)))))
(inst sll temp shift)
(inst or old temp))
(inst st old object offset)
(sc-case value
(immediate
(inst li result (tn-value value)))
(t
(move result value)))))
(define-vop (,(symbolicate "DATA-VECTOR-SET-C/" type))
(:translate data-vector-set)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg))
(value :scs (unsigned-reg zero immediate) :target result))
(:arg-types ,type
(:constant index)
positive-fixnum)
(:info index)
(:results (result :scs (unsigned-reg)))
(:result-types positive-fixnum)
(:temporary (:scs (non-descriptor-reg)) offset-reg temp old)
(:generator 20
(multiple-value-bind (word extra) (floor index ,elements-per-word)
(let ((offset (- (* (+ word vector-data-offset) n-word-bytes)
other-pointer-lowtag)))
(cond ((typep offset '(signed-byte 13))
(inst ld old object offset))
(t
(inst li offset-reg offset)
(inst ld old object offset-reg)))
(unless (and (sc-is value immediate)
(= (tn-value value) ,(1- (ash 1 bits))))
(cond ((zerop extra)
(inst sll old ,bits)
(inst srl old ,bits))
(t
(inst li temp
(lognot (ash ,(1- (ash 1 bits))
(* (logxor extra
,(1- elements-per-word))
,bits))))
(inst and old temp))))
(sc-case value
(zero)
(immediate
(let ((value (ash (logand (tn-value value)
,(1- (ash 1 bits)))
(* (logxor extra
,(1- elements-per-word))
,bits))))
(cond ((typep value '(signed-byte 13))
(inst or old value))
(t
(inst li temp value)
(inst or old temp)))))
(unsigned-reg
(inst sll temp value
(* (logxor extra ,(1- elements-per-word)) ,bits))
(inst or old temp)))
(if (typep offset '(signed-byte 13))
(inst st old object offset)
(inst st old object offset-reg)))
(sc-case value
(immediate
(inst li result (tn-value value)))
(t
(move result value))))))))))
(def-small-data-vector-frobs simple-bit-vector 1)
(def-small-data-vector-frobs simple-array-unsigned-byte-2 2)
(def-small-data-vector-frobs simple-array-unsigned-byte-4 4))
;;; And the float variants.
(define-vop (data-vector-ref/simple-array-single-float)
(:note "inline array access")
(:translate data-vector-ref)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg))
(index :scs (any-reg)))
(:arg-types simple-array-single-float positive-fixnum)
(:results (value :scs (single-reg)))
(:temporary (:scs (non-descriptor-reg)) offset)
(:result-types single-float)
(:generator 5
(inst add offset index (- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(inst ldf value object offset)))
(define-vop (data-vector-set/simple-array-single-float)
(:note "inline array store")
(:translate data-vector-set)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg))
(index :scs (any-reg))
(value :scs (single-reg) :target result))
(:arg-types simple-array-single-float positive-fixnum single-float)
(:results (result :scs (single-reg)))
(:result-types single-float)
(:temporary (:scs (non-descriptor-reg)) offset)
(:generator 5
(inst add offset index
(- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(inst stf value object offset)
(unless (location= result value)
(inst fmovs result value))))
(define-vop (data-vector-ref/simple-array-double-float)
(:note "inline array access")
(:translate data-vector-ref)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg))
(index :scs (any-reg)))
(:arg-types simple-array-double-float positive-fixnum)
(:results (value :scs (double-reg)))
(:result-types double-float)
(:temporary (:scs (non-descriptor-reg)) offset)
(:generator 7
(inst sll offset index 1)
(inst add offset (- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(inst lddf value object offset)))
(define-vop (data-vector-set/simple-array-double-float)
(:note "inline array store")
(:translate data-vector-set)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg))
(index :scs (any-reg))
(value :scs (double-reg) :target result))
(:arg-types simple-array-double-float positive-fixnum double-float)
(:results (result :scs (double-reg)))
(:result-types double-float)
(:temporary (:scs (non-descriptor-reg)) offset)
(:generator 20
(inst sll offset index 1)
(inst add offset (- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(inst stdf value object offset)
(unless (location= result value)
(move-double-reg result value))))
#!+long-float
(define-vop (data-vector-ref/simple-array-long-float)
(:note "inline array access")
(:translate data-vector-ref)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg))
(index :scs (any-reg)))
(:arg-types simple-array-long-float positive-fixnum)
(:results (value :scs (long-reg)))
(:result-types long-float)
(:temporary (:scs (non-descriptor-reg)) offset)
(:generator 7
(inst sll offset index 2)
(inst add offset (- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(load-long-reg value object offset nil)))
#!+long-float
(define-vop (data-vector-set/simple-array-long-float)
(:note "inline array store")
(:translate data-vector-set)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg))
(index :scs (any-reg))
(value :scs (long-reg) :target result))
(:arg-types simple-array-long-float positive-fixnum long-float)
(:results (result :scs (long-reg)))
(:result-types long-float)
(:temporary (:scs (non-descriptor-reg)) offset)
(:generator 20
(inst sll offset index 2)
(inst add offset (- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(store-long-reg value object offset nil)
(unless (location= result value)
(move-long-reg result value))))
;;;; Misc. Array VOPs.
#+nil
(define-vop (vector-word-length)
(:args (vec :scs (descriptor-reg)))
(:results (res :scs (any-reg descriptor-reg)))
(:generator 6
(loadw res vec clc::g-vector-header-words)
(inst niuo res res clc::g-vector-words-mask-16)))
(define-vop (get-vector-subtype get-header-data))
(define-vop (set-vector-subtype set-header-data))
;;; XXX FIXME: Don't we have these above, in DEF-DATA-VECTOR-FROBS?
(define-vop (data-vector-ref/simple-array-signed-byte-8 signed-byte-index-ref)
(:note "inline array access")
(:variant vector-data-offset other-pointer-lowtag)
(:translate data-vector-ref)
(:arg-types simple-array-signed-byte-8 positive-fixnum)
(:results (value :scs (signed-reg)))
(:result-types tagged-num))
(define-vop (data-vector-set/simple-array-signed-byte-8 byte-index-set)
(:note "inline array store")
(:variant vector-data-offset other-pointer-lowtag)
(:translate data-vector-set)
(:arg-types simple-array-signed-byte-8 positive-fixnum tagged-num)
(:args (object :scs (descriptor-reg))
(index :scs (any-reg zero immediate))
(value :scs (signed-reg)))
(:results (result :scs (signed-reg)))
(:result-types tagged-num))
(define-vop (data-vector-ref/simple-array-signed-byte-16
signed-halfword-index-ref)
(:note "inline array access")
(:variant vector-data-offset other-pointer-lowtag)
(:translate data-vector-ref)
(:arg-types simple-array-signed-byte-16 positive-fixnum)
(:results (value :scs (signed-reg)))
(:result-types tagged-num))
(define-vop (data-vector-set/simple-array-signed-byte-16 halfword-index-set)
(:note "inline array store")
(:variant vector-data-offset other-pointer-lowtag)
(:translate data-vector-set)
(:arg-types simple-array-signed-byte-16 positive-fixnum tagged-num)
(:args (object :scs (descriptor-reg))
(index :scs (any-reg zero immediate))
(value :scs (signed-reg)))
(:results (result :scs (signed-reg)))
(:result-types tagged-num))
;;; Complex float arrays.
(define-vop (data-vector-ref/simple-array-complex-single-float)
(:note "inline array access")
(:translate data-vector-ref)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg) :to :result)
(index :scs (any-reg)))
(:arg-types simple-array-complex-single-float positive-fixnum)
(:results (value :scs (complex-single-reg)))
(:temporary (:scs (non-descriptor-reg) :from (:argument 1)) offset)
(:result-types complex-single-float)
(:generator 5
(let ((real-tn (complex-single-reg-real-tn value)))
(inst sll offset index 1)
(inst add offset (- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(inst ldf real-tn object offset))
(let ((imag-tn (complex-single-reg-imag-tn value)))
(inst add offset n-word-bytes)
(inst ldf imag-tn object offset))))
(define-vop (data-vector-set/simple-array-complex-single-float)
(:note "inline array store")
(:translate data-vector-set)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg) :to :result)
(index :scs (any-reg))
(value :scs (complex-single-reg) :target result))
(:arg-types simple-array-complex-single-float positive-fixnum
complex-single-float)
(:results (result :scs (complex-single-reg)))
(:result-types complex-single-float)
(:temporary (:scs (non-descriptor-reg) :from (:argument 1)) offset)
(:generator 5
(let ((value-real (complex-single-reg-real-tn value))
(result-real (complex-single-reg-real-tn result)))
(inst sll offset index 1)
(inst add offset (- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(inst stf value-real object offset)
(unless (location= result-real value-real)
(inst fmovs result-real value-real)))
(let ((value-imag (complex-single-reg-imag-tn value))
(result-imag (complex-single-reg-imag-tn result)))
(inst add offset n-word-bytes)
(inst stf value-imag object offset)
(unless (location= result-imag value-imag)
(inst fmovs result-imag value-imag)))))
(define-vop (data-vector-ref/simple-array-complex-double-float)
(:note "inline array access")
(:translate data-vector-ref)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg) :to :result)
(index :scs (any-reg)))
(:arg-types simple-array-complex-double-float positive-fixnum)
(:results (value :scs (complex-double-reg)))
(:result-types complex-double-float)
(:temporary (:scs (non-descriptor-reg) :from (:argument 1)) offset)
(:generator 7
(let ((real-tn (complex-double-reg-real-tn value)))
(inst sll offset index 2)
(inst add offset (- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(inst lddf real-tn object offset))
(let ((imag-tn (complex-double-reg-imag-tn value)))
(inst add offset (* 2 n-word-bytes))
(inst lddf imag-tn object offset))))
(define-vop (data-vector-set/simple-array-complex-double-float)
(:note "inline array store")
(:translate data-vector-set)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg) :to :result)
(index :scs (any-reg))
(value :scs (complex-double-reg) :target result))
(:arg-types simple-array-complex-double-float positive-fixnum
complex-double-float)
(:results (result :scs (complex-double-reg)))
(:result-types complex-double-float)
(:temporary (:scs (non-descriptor-reg) :from (:argument 1)) offset)
(:generator 20
(let ((value-real (complex-double-reg-real-tn value))
(result-real (complex-double-reg-real-tn result)))
(inst sll offset index 2)
(inst add offset (- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(inst stdf value-real object offset)
(unless (location= result-real value-real)
(move-double-reg result-real value-real)))
(let ((value-imag (complex-double-reg-imag-tn value))
(result-imag (complex-double-reg-imag-tn result)))
(inst add offset (* 2 n-word-bytes))
(inst stdf value-imag object offset)
(unless (location= result-imag value-imag)
(move-double-reg result-imag value-imag)))))
#!+long-float
(define-vop (data-vector-ref/simple-array-complex-long-float)
(:note "inline array access")
(:translate data-vector-ref)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg) :to :result)
(index :scs (any-reg)))
(:arg-types simple-array-complex-long-float positive-fixnum)
(:results (value :scs (complex-long-reg)))
(:result-types complex-long-float)
(:temporary (:scs (non-descriptor-reg) :from (:argument 1)) offset)
(:generator 7
(let ((real-tn (complex-long-reg-real-tn value)))
(inst sll offset index 3)
(inst add offset (- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(load-long-reg real-tn object offset nil))
(let ((imag-tn (complex-long-reg-imag-tn value)))
(inst add offset (* 4 n-word-bytes))
(load-long-reg imag-tn object offset nil))))
#!+long-float
(define-vop (data-vector-set/simple-array-complex-long-float)
(:note "inline array store")
(:translate data-vector-set)
(:policy :fast-safe)
(:args (object :scs (descriptor-reg) :to :result)
(index :scs (any-reg))
(value :scs (complex-long-reg) :target result))
(:arg-types simple-array-complex-long-float positive-fixnum
complex-long-float)
(:results (result :scs (complex-long-reg)))
(:result-types complex-long-float)
(:temporary (:scs (non-descriptor-reg) :from (:argument 1)) offset)
(:generator 20
(let ((value-real (complex-long-reg-real-tn value))
(result-real (complex-long-reg-real-tn result)))
(inst sll offset index 3)
(inst add offset (- (* vector-data-offset n-word-bytes)
other-pointer-lowtag))
(store-long-reg value-real object offset nil)
(unless (location= result-real value-real)
(move-long-reg result-real value-real)))
(let ((value-imag (complex-long-reg-imag-tn value))
(result-imag (complex-long-reg-imag-tn result)))
(inst add offset (* 4 n-word-bytes))
(store-long-reg value-imag object offset nil)
(unless (location= result-imag value-imag)
(move-long-reg result-imag value-imag)))))
;;; These vops are useful for accessing the bits of a vector irrespective of
;;; what type of vector it is.
(define-vop (vector-raw-bits word-index-ref)
(:note "vector-raw-bits VOP")
(:translate %vector-raw-bits)
(:results (value :scs (unsigned-reg)))
(:result-types unsigned-num)
(:variant vector-data-offset other-pointer-lowtag))
(define-vop (set-vector-raw-bits word-index-set)
(:note "setf vector-raw-bits VOP")
(:translate %set-vector-raw-bits)
(:args (object :scs (descriptor-reg))
(index :scs (any-reg zero immediate))
(value :scs (unsigned-reg)))
(:arg-types * tagged-num unsigned-num)
(:results (result :scs (unsigned-reg)))
(:result-types unsigned-num)
(:variant vector-data-offset other-pointer-lowtag))