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) index
  80   (foldable flushable))
  81
  82 (defknown %sxhash-simple-substring (simple-string index) index
  83   (foldable flushable))
  84
  85 (defknown symbol-hash (symbol) (integer 0 #.sb!xc:most-positive-fixnum)
  86   (flushable movable))
  87
  88 (defknown %set-symbol-hash (symbol (integer 0 #.sb!xc:most-positive-fixnum))
  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 ;;; %RAW-{REF,SET}-FOO VOPs should be declared as taking a RAW-VECTOR
 161 ;;; as their first argument (clarity and to match these DEFKNOWNs).
 162 ;;; We declare RAW-VECTOR as a primitive type so the VOP machinery
 163 ;;; will accept our VOPs as legitimate.  --njf, 2004-08-10
 164
 165 (defknown %raw-bits (t fixnum) sb!vm:word
 166   (foldable flushable))
 167 #!+x86
 168 (defknown %raw-bits-with-offset (t fixnum fixnum) sb!vm:word
 169   (flushable always-translatable))
 170 (defknown (%set-raw-bits) (t fixnum sb!vm:word) sb!vm:word
 171   (unsafe))
 172 #!+x86
 173 (defknown (%set-raw-bits-with-offset) (t fixnum fixnum sb!vm:word) sb!vm:word
 174   (unsafe always-translatable))
 175 ;;; These two are mostly used for bit-bashing operations.
 176 (defknown %vector-raw-bits (t fixnum) sb!vm:word
 177   (flushable))
 178 (defknown (%set-vector-raw-bits) (t fixnum sb!vm:word) sb!vm:word
 179   (unsafe))
 180
 181
 182 (defknown allocate-vector ((unsigned-byte 8) index index) (simple-array * (*))
 183   (flushable movable))
 184
 185 (defknown make-array-header ((unsigned-byte 8) (unsigned-byte 24)) array
 186   (flushable movable))
 187
 188
 189 (defknown make-weak-pointer (t) weak-pointer
 190   (flushable))
 191
 192 (defknown %make-complex (real real) complex
 193   (flushable movable))
 194 (defknown %make-ratio (rational rational) ratio
 195   (flushable movable))
 196 (defknown make-value-cell (t) t
 197   (flushable movable))
 198
 199 ;;;; threading
 200
 201 #!+(and sb-lutex sb-thread)
 202 (progn
 203   (defknown sb!vm::%make-lutex () sb!vm::lutex ())
 204   (defknown sb!vm::lutexp (t) boolean (foldable flushable)))
 205
 206 (defknown (dynamic-space-free-pointer binding-stack-pointer-sap
 207                                       control-stack-pointer-sap)  ()
 208   system-area-pointer
 209   (flushable))
 210 \f
 211 ;;;; debugger support
 212
 213 (defknown current-sp () system-area-pointer (movable flushable))
 214 (defknown current-fp () system-area-pointer (movable flushable))
 215 (defknown stack-ref (system-area-pointer index) t (flushable))
 216 (defknown %set-stack-ref (system-area-pointer index t) t (unsafe))
 217 (defknown lra-code-header (t) t (movable flushable))
 218 (defknown fun-code-header (t) t (movable flushable))
 219 (defknown %make-lisp-obj (sb!vm:word) t (movable flushable))
 220 (defknown get-lisp-obj-address (t) sb!vm:word (movable flushable))
 221 (defknown fun-word-offset (function) index (movable flushable))
 222 \f
 223 ;;;; 32-bit logical operations
 224
 225 (defknown merge-bits ((unsigned-byte 5) sb!vm:word sb!vm:word)
 226   sb!vm:word
 227   (foldable flushable movable))
 228
 229 (defknown word-logical-not (sb!vm:word) sb!vm:word
 230   (foldable flushable movable))
 231
 232 (defknown (word-logical-and word-logical-nand
 233            word-logical-or word-logical-nor
 234            word-logical-xor word-logical-eqv
 235            word-logical-andc1 word-logical-andc2
 236            word-logical-orc1 word-logical-orc2)
 237           (sb!vm:word sb!vm:word) sb!vm:word
 238   (foldable flushable movable))
 239
 240 (defknown (shift-towards-start shift-towards-end) (sb!vm:word fixnum)
 241   sb!vm:word
 242   (foldable flushable movable))
 243 \f
 244 ;;;; bignum operations
 245
 246 (defknown %allocate-bignum (bignum-index) bignum-type
 247   (flushable))
 248
 249 (defknown %bignum-length (bignum-type) bignum-index
 250   (foldable flushable movable))
 251
 252 (defknown %bignum-set-length (bignum-type bignum-index) bignum-type
 253   (unsafe))
 254
 255 (defknown %bignum-ref (bignum-type bignum-index) bignum-element-type
 256   (flushable))
 257 #!+(or x86 x86-64)
 258 (defknown %bignum-ref-with-offset (bignum-type bignum-index (signed-byte 24))
 259   bignum-element-type (flushable always-translatable))
 260
 261 (defknown %bignum-set (bignum-type bignum-index bignum-element-type)
 262   bignum-element-type
 263   (unsafe))
 264 #!+(or x86 x86-64)
 265 (defknown %bignum-set-with-offset
 266   (bignum-type bignum-index (signed-byte 24) bignum-element-type)
 267   bignum-element-type (unsafe always-translatable))
 268
 269 (defknown %digit-0-or-plusp (bignum-element-type) boolean
 270   (foldable flushable movable))
 271
 272 (defknown (%add-with-carry %subtract-with-borrow)
 273           (bignum-element-type bignum-element-type (mod 2))
 274   (values bignum-element-type (mod 2))
 275   (foldable flushable movable))
 276
 277 (defknown %multiply-and-add
 278           (bignum-element-type bignum-element-type bignum-element-type
 279                                &optional bignum-element-type)
 280   (values bignum-element-type bignum-element-type)
 281   (foldable flushable movable))
 282
 283 (defknown %multiply (bignum-element-type bignum-element-type)
 284   (values bignum-element-type bignum-element-type)
 285   (foldable flushable movable))
 286
 287 (defknown %lognot (bignum-element-type) bignum-element-type
 288   (foldable flushable movable))
 289
 290 (defknown (%logand %logior %logxor) (bignum-element-type bignum-element-type)
 291   bignum-element-type
 292   (foldable flushable movable))
 293
 294 (defknown %fixnum-to-digit (fixnum) bignum-element-type
 295   (foldable flushable movable))
 296
 297 (defknown %floor (bignum-element-type bignum-element-type bignum-element-type)
 298   (values bignum-element-type bignum-element-type)
 299   (foldable flushable movable))
 300
 301 (defknown %fixnum-digit-with-correct-sign (bignum-element-type)
 302   (signed-byte #.sb!vm:n-word-bits)
 303   (foldable flushable movable))
 304
 305 (defknown (%ashl %ashr %digit-logical-shift-right)
 306           (bignum-element-type (mod #.sb!vm:n-word-bits)) bignum-element-type
 307   (foldable flushable movable))
 308 \f
 309 ;;;; bit-bashing routines
 310
 311 ;;; FIXME: there's some ugly duplication between the (INTERN (FORMAT ...))
 312 ;;; magic here and the same magic in src/code/bit-bash.lisp.  I don't know
 313 ;;; of any good way to clean it up, but it's definitely violating OAOO.
 314 (macrolet ((define-known-copiers ()
 315             `(progn
 316               ,@(loop for i = 1 then (* i 2)
 317                       collect `(defknown ,(intern (format nil "UB~D-BASH-COPY" i)
 318                                                   (find-package "SB!KERNEL"))
 319                                 ((simple-unboxed-array (*)) index (simple-unboxed-array (*)) index index)
 320                                 (values)
 321                                 ())
 322                       collect `(defknown ,(intern (format nil "SYSTEM-AREA-UB~D-COPY" i)
 323                                                   (find-package "SB!KERNEL"))
 324                                 (system-area-pointer index system-area-pointer index index)
 325                                 (values)
 326                                 ())
 327                       collect `(defknown ,(intern (format nil "COPY-UB~D-TO-SYSTEM-AREA" i)
 328                                                   (find-package "SB!KERNEL"))
 329                                 ((simple-unboxed-array (*)) index system-area-pointer index index)
 330                                 (values)
 331                                 ())
 332                       collect `(defknown ,(intern (format nil "COPY-UB~D-FROM-SYSTEM-AREA" i)
 333                                                   (find-package "SB!KERNEL"))
 334                                 (system-area-pointer index (simple-unboxed-array (*)) index index)
 335                                 (values)
 336                                 ())
 337                       until (= i sb!vm:n-word-bits)))))
 338   (define-known-copiers))
 339
 340 ;;; (not really a bit-bashing routine, but starting to take over from
 341 ;;; bit-bashing routines in byte-sized copies as of sbcl-0.6.12.29:)
 342 (defknown %byte-blt
 343   ((or (simple-unboxed-array (*)) system-area-pointer) index
 344    (or (simple-unboxed-array (*)) system-area-pointer) index index)
 345   (values)
 346   ())
 347 \f
 348 ;;;; code/function/fdefn object manipulation routines
 349
 350 (defknown code-instructions (t) system-area-pointer (flushable movable))
 351 (defknown code-header-ref (t index) t (flushable))
 352 (defknown code-header-set (t index t) t ())
 353
 354 (defknown fun-subtype (function) (unsigned-byte #.sb!vm:n-widetag-bits)
 355   (flushable))
 356 (defknown ((setf fun-subtype))
 357           ((unsigned-byte #.sb!vm:n-widetag-bits) function)
 358   (unsigned-byte #.sb!vm:n-widetag-bits)
 359   ())
 360
 361 (defknown make-fdefn (t) fdefn (flushable movable))
 362 (defknown fdefn-p (t) boolean (movable foldable flushable))
 363 (defknown fdefn-name (fdefn) t (foldable flushable))
 364 (defknown fdefn-fun (fdefn) (or function null) (flushable))
 365 (defknown (setf fdefn-fun) (function fdefn) t (unsafe))
 366 (defknown fdefn-makunbound (fdefn) t ())
 367
 368 (defknown %simple-fun-self (function) function
 369   (flushable))
 370 (defknown (setf %simple-fun-self) (function function) function
 371   (unsafe))
 372
 373 (defknown %closure-fun (function) function
 374   (flushable))
 375
 376 (defknown %closure-index-ref (function index) t
 377   (flushable))
 378
 379 (defknown %make-funcallable-instance (index) function
 380   (unsafe))
 381
 382 (defknown %funcallable-instance-info (function index) t (flushable))
 383 (defknown %set-funcallable-instance-info (function index t) t (unsafe))
 384 \f
 385 ;;;; mutator accessors
 386
 387 (defknown mutator-self () system-area-pointer (flushable movable))
 388
 389 (defknown %data-vector-and-index (array index)
 390                                  (values (simple-array * (*)) index)
 391                                  (foldable flushable))