src/compiler/generic/vm-fndb.lisp

   1 ;;;; signatures of machine-specific functions
   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!C")
  13 \f
  14 ;;;; internal type predicates
  15
  16 ;;; Simple TYPEP uses that don't have any standard predicate are
  17 ;;; translated into non-standard unary predicates.
  18 (defknown (fixnump bignump ratiop
  19            short-float-p single-float-p double-float-p long-float-p
  20            complex-rational-p complex-float-p complex-single-float-p
  21            complex-double-float-p #!+long-float complex-long-float-p
  22            complex-vector-p
  23            base-char-p %standard-char-p %instancep %other-pointer-p
  24            base-string-p simple-base-string-p
  25            #!+sb-unicode character-string-p
  26            #!+sb-unicode simple-character-string-p
  27            array-header-p
  28            sequencep extended-sequence-p
  29            simple-array-p simple-array-nil-p vector-nil-p
  30            simple-array-unsigned-byte-2-p
  31            simple-array-unsigned-byte-4-p simple-array-unsigned-byte-7-p
  32            simple-array-unsigned-byte-8-p simple-array-unsigned-byte-15-p
  33            simple-array-unsigned-byte-16-p
  34            #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
  35            simple-array-unsigned-byte-29-p
  36            simple-array-unsigned-byte-31-p
  37            simple-array-unsigned-byte-32-p
  38            #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
  39            simple-array-unsigned-byte-60-p
  40            #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
  41            simple-array-unsigned-byte-63-p
  42            #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
  43            simple-array-unsigned-byte-64-p
  44            simple-array-signed-byte-8-p simple-array-signed-byte-16-p
  45            #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
  46            simple-array-signed-byte-30-p
  47            simple-array-signed-byte-32-p
  48            #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
  49            simple-array-signed-byte-61-p
  50            #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
  51            simple-array-signed-byte-64-p
  52            simple-array-single-float-p simple-array-double-float-p
  53            #!+long-float simple-array-long-float-p
  54            simple-array-complex-single-float-p
  55            simple-array-complex-double-float-p
  56            #!+long-float simple-array-complex-long-float-p
  57            system-area-pointer-p realp
  58            ;; #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
  59            unsigned-byte-32-p
  60            ;; #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
  61            signed-byte-32-p
  62            #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
  63            unsigned-byte-64-p
  64            #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
  65            signed-byte-64-p
  66            vector-t-p weak-pointer-p code-component-p lra-p
  67            funcallable-instance-p)
  68   (t) boolean (movable foldable flushable))
  69 \f
  70 ;;;; miscellaneous "sub-primitives"
  71
  72 (defknown pointer-hash (t) hash (flushable))
  73
  74 (defknown %sp-string-compare
  75   (simple-string index index simple-string index index)
  76   (or index null)
  77   (foldable flushable))
  78
  79 (defknown %sxhash-simple-string (simple-string) hash
  80   (foldable flushable))
  81
  82 (defknown %sxhash-simple-substring (simple-string index) hash
  83   (foldable flushable))
  84
  85 (defknown symbol-hash (symbol) hash
  86   (flushable movable))
  87
  88 (defknown %set-symbol-hash (symbol hash)
  89   t (unsafe))
  90
  91 (defknown vector-length (vector) index (flushable))
  92
  93 (defknown vector-sap ((simple-unboxed-array (*))) system-area-pointer
  94   (flushable))
  95
  96 (defknown lowtag-of (t) (unsigned-byte #.sb!vm:n-lowtag-bits)
  97   (flushable movable))
  98 (defknown widetag-of (t) (unsigned-byte #.sb!vm:n-widetag-bits)
  99   (flushable movable))
 100
 101 (defknown (get-header-data get-closure-length) (t) (unsigned-byte 24)
 102   (flushable))
 103 (defknown set-header-data (t (unsigned-byte 24)) t
 104   (unsafe))
 105
 106 (defknown %array-dimension (t index) index
 107   (flushable))
 108 (defknown %set-array-dimension (t index index) index
 109   ())
 110 (defknown %array-rank (t) index
 111   (flushable))
 112
 113 (defknown %make-instance (index) instance
 114   (flushable))
 115 (defknown %make-structure-instance (defstruct-description list &rest t) instance
 116   (flushable always-translatable))
 117 (defknown %instance-layout (instance) layout
 118   (foldable flushable))
 119 (defknown %set-instance-layout (instance layout) layout
 120   (unsafe))
 121 (defknown %instance-length (instance) index
 122   (foldable flushable))
 123 (defknown %instance-ref (instance index) t
 124   (flushable always-translatable))
 125 (defknown %instance-set (instance index t) t
 126   (unsafe always-translatable))
 127 (defknown %layout-invalid-error (t layout) nil)
 128
 129 (defknown %raw-instance-ref/word (instance index) sb!vm:word
 130   (flushable always-translatable))
 131 (defknown %raw-instance-set/word (instance index sb!vm:word) sb!vm:word
 132   (unsafe always-translatable))
 133 (defknown %raw-instance-ref/single (instance index) single-float
 134   (flushable always-translatable))
 135 (defknown %raw-instance-set/single (instance index single-float) single-float
 136   (unsafe always-translatable))
 137 (defknown %raw-instance-ref/double (instance index) double-float
 138   (flushable always-translatable))
 139 (defknown %raw-instance-set/double (instance index double-float) double-float
 140   (unsafe always-translatable))
 141 (defknown %raw-instance-ref/complex-single (instance index)
 142   (complex single-float)
 143   (flushable always-translatable))
 144 (defknown %raw-instance-set/complex-single
 145     (instance index (complex single-float))
 146   (complex single-float)
 147   (unsafe always-translatable))
 148 (defknown %raw-instance-ref/complex-double (instance index)
 149   (complex double-float)
 150   (flushable always-translatable))
 151 (defknown %raw-instance-set/complex-double
 152     (instance index (complex double-float))
 153   (complex double-float)
 154   (unsafe always-translatable))
 155
 156 #!+(or x86 x86-64)
 157 (defknown %raw-instance-atomic-incf/word (instance index sb!vm:signed-word) sb!vm:word
 158     (unsafe always-translatable))
 159
 160 ;;; These two are mostly used for bit-bashing operations.
 161 (defknown %vector-raw-bits (t fixnum) sb!vm:word
 162   (flushable))
 163 (defknown (%set-vector-raw-bits) (t fixnum sb!vm:word) sb!vm:word
 164   (unsafe))
 165
 166
 167 (defknown allocate-vector ((unsigned-byte 8) index index) (simple-array * (*))
 168   (flushable movable))
 169
 170 (defknown make-array-header ((unsigned-byte 8) (unsigned-byte 24)) array
 171   (flushable movable))
 172
 173
 174 (defknown make-weak-pointer (t) weak-pointer
 175   (flushable))
 176
 177 (defknown %make-complex (real real) complex
 178   (flushable movable))
 179 (defknown %make-ratio (rational rational) ratio
 180   (flushable movable))
 181 (defknown make-value-cell (t) t
 182   (flushable movable))
 183
 184 ;;;; threading
 185
 186 #!+(and sb-lutex sb-thread)
 187 (progn
 188   (defknown sb!vm::%make-lutex () sb!vm::lutex ())
 189   (defknown sb!vm::lutexp (t) boolean (foldable flushable)))
 190
 191 (defknown (dynamic-space-free-pointer binding-stack-pointer-sap
 192                                       control-stack-pointer-sap)  ()
 193   system-area-pointer
 194   (flushable))
 195 \f
 196 ;;;; debugger support
 197
 198 (defknown current-sp () system-area-pointer (movable flushable))
 199 (defknown current-fp () system-area-pointer (movable flushable))
 200 (defknown stack-ref (system-area-pointer index) t (flushable))
 201 (defknown %set-stack-ref (system-area-pointer index t) t (unsafe))
 202 (defknown lra-code-header (t) t (movable flushable))
 203 (defknown fun-code-header (t) t (movable flushable))
 204 (defknown %make-lisp-obj (sb!vm:word) t (movable flushable))
 205 (defknown get-lisp-obj-address (t) sb!vm:word (movable flushable))
 206 (defknown fun-word-offset (function) index (movable flushable))
 207 \f
 208 ;;;; 32-bit logical operations
 209
 210 (defknown word-logical-not (sb!vm:word) sb!vm:word
 211   (foldable flushable movable))
 212
 213 (defknown (word-logical-and word-logical-nand
 214            word-logical-or word-logical-nor
 215            word-logical-xor word-logical-eqv
 216            word-logical-andc1 word-logical-andc2
 217            word-logical-orc1 word-logical-orc2)
 218           (sb!vm:word sb!vm:word) sb!vm:word
 219   (foldable flushable movable))
 220
 221 (defknown (shift-towards-start shift-towards-end) (sb!vm:word fixnum)
 222   sb!vm:word
 223   (foldable flushable movable))
 224 \f
 225 ;;;; bignum operations
 226
 227 (defknown %allocate-bignum (bignum-index) bignum-type
 228   (flushable))
 229
 230 (defknown %bignum-length (bignum-type) bignum-index
 231   (foldable flushable movable))
 232
 233 (defknown %bignum-set-length (bignum-type bignum-index) bignum-type
 234   (unsafe))
 235
 236 (defknown %bignum-ref (bignum-type bignum-index) bignum-element-type
 237   (flushable))
 238 #!+(or x86 x86-64)
 239 (defknown %bignum-ref-with-offset (bignum-type bignum-index (signed-byte 24))
 240   bignum-element-type (flushable always-translatable))
 241
 242 (defknown %bignum-set (bignum-type bignum-index bignum-element-type)
 243   bignum-element-type
 244   (unsafe))
 245 #!+(or x86 x86-64)
 246 (defknown %bignum-set-with-offset
 247   (bignum-type bignum-index (signed-byte 24) bignum-element-type)
 248   bignum-element-type (unsafe always-translatable))
 249
 250 (defknown %digit-0-or-plusp (bignum-element-type) boolean
 251   (foldable flushable movable))
 252
 253 (defknown (%add-with-carry %subtract-with-borrow)
 254           (bignum-element-type bignum-element-type (mod 2))
 255   (values bignum-element-type (mod 2))
 256   (foldable flushable movable))
 257
 258 (defknown %multiply-and-add
 259           (bignum-element-type bignum-element-type bignum-element-type
 260                                &optional bignum-element-type)
 261   (values bignum-element-type bignum-element-type)
 262   (foldable flushable movable))
 263
 264 (defknown %multiply (bignum-element-type bignum-element-type)
 265   (values bignum-element-type bignum-element-type)
 266   (foldable flushable movable))
 267
 268 (defknown %lognot (bignum-element-type) bignum-element-type
 269   (foldable flushable movable))
 270
 271 (defknown (%logand %logior %logxor) (bignum-element-type bignum-element-type)
 272   bignum-element-type
 273   (foldable flushable movable))
 274
 275 (defknown %fixnum-to-digit (fixnum) bignum-element-type
 276   (foldable flushable movable))
 277
 278 (defknown %floor (bignum-element-type bignum-element-type bignum-element-type)
 279   (values bignum-element-type bignum-element-type)
 280   (foldable flushable movable))
 281
 282 (defknown %fixnum-digit-with-correct-sign (bignum-element-type)
 283   (signed-byte #.sb!vm:n-word-bits)
 284   (foldable flushable movable))
 285
 286 (defknown (%ashl %ashr %digit-logical-shift-right)
 287           (bignum-element-type (mod #.sb!vm:n-word-bits)) bignum-element-type
 288   (foldable flushable movable))
 289 \f
 290 ;;;; bit-bashing routines
 291
 292 ;;; FIXME: there's some ugly duplication between the (INTERN (FORMAT ...))
 293 ;;; magic here and the same magic in src/code/bit-bash.lisp.  I don't know
 294 ;;; of any good way to clean it up, but it's definitely violating OAOO.
 295 (macrolet ((define-known-copiers ()
 296             `(progn
 297               ,@(loop for i = 1 then (* i 2)
 298                       collect `(defknown ,(intern (format nil "UB~D-BASH-COPY" i)
 299                                                   (find-package "SB!KERNEL"))
 300                                 ((simple-unboxed-array (*)) index (simple-unboxed-array (*)) index index)
 301                                 (values)
 302                                 ())
 303                       collect `(defknown ,(intern (format nil "SYSTEM-AREA-UB~D-COPY" i)
 304                                                   (find-package "SB!KERNEL"))
 305                                 (system-area-pointer index system-area-pointer index index)
 306                                 (values)
 307                                 ())
 308                       collect `(defknown ,(intern (format nil "COPY-UB~D-TO-SYSTEM-AREA" i)
 309                                                   (find-package "SB!KERNEL"))
 310                                 ((simple-unboxed-array (*)) index system-area-pointer index index)
 311                                 (values)
 312                                 ())
 313                       collect `(defknown ,(intern (format nil "COPY-UB~D-FROM-SYSTEM-AREA" i)
 314                                                   (find-package "SB!KERNEL"))
 315                                 (system-area-pointer index (simple-unboxed-array (*)) index index)
 316                                 (values)
 317                                 ())
 318                       until (= i sb!vm:n-word-bits)))))
 319   (define-known-copiers))
 320
 321 ;;; (not really a bit-bashing routine, but starting to take over from
 322 ;;; bit-bashing routines in byte-sized copies as of sbcl-0.6.12.29:)
 323 (defknown %byte-blt
 324   ((or (simple-unboxed-array (*)) system-area-pointer) index
 325    (or (simple-unboxed-array (*)) system-area-pointer) index index)
 326   (values)
 327   ())
 328 \f
 329 ;;;; code/function/fdefn object manipulation routines
 330
 331 (defknown code-instructions (t) system-area-pointer (flushable movable))
 332 (defknown code-header-ref (t index) t (flushable))
 333 (defknown code-header-set (t index t) t ())
 334
 335 (defknown fun-subtype (function) (unsigned-byte #.sb!vm:n-widetag-bits)
 336   (flushable))
 337 (defknown ((setf fun-subtype))
 338           ((unsigned-byte #.sb!vm:n-widetag-bits) function)
 339   (unsigned-byte #.sb!vm:n-widetag-bits)
 340   ())
 341
 342 (defknown make-fdefn (t) fdefn (flushable movable))
 343 (defknown fdefn-p (t) boolean (movable foldable flushable))
 344 (defknown fdefn-name (fdefn) t (foldable flushable))
 345 (defknown fdefn-fun (fdefn) (or function null) (flushable))
 346 (defknown (setf fdefn-fun) (function fdefn) t (unsafe))
 347 (defknown fdefn-makunbound (fdefn) t ())
 348
 349 (defknown %simple-fun-self (function) function
 350   (flushable))
 351 (defknown (setf %simple-fun-self) (function function) function
 352   (unsafe))
 353
 354 (defknown %closure-fun (function) function
 355   (flushable))
 356
 357 (defknown %closure-index-ref (function index) t
 358   (flushable))
 359
 360 (defknown %make-funcallable-instance (index) function
 361   (unsafe))
 362
 363 (defknown %funcallable-instance-info (function index) t (flushable))
 364 (defknown %set-funcallable-instance-info (function index t) t (unsafe))
 365 \f
 366 ;;;; mutator accessors
 367
 368 (defknown mutator-self () system-area-pointer (flushable movable))
 369
 370 (defknown %data-vector-and-index (array index)
 371                                  (values (simple-array * (*)) index)
 372                                  (foldable flushable))