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            weak-pointer-p code-component-p lra-p
  67            funcallable-instance-p)
  68   (t) boolean (movable foldable flushable))
  69 (defknown #.(loop for (name) in *vector-without-complex-typecode-infos*
  70                   collect name)
  71   (t) boolean (movable foldable flushable))
  72 \f
  73 ;;;; miscellaneous "sub-primitives"
  74
  75 (defknown pointer-hash (t) hash (flushable))
  76
  77 (defknown %sp-string-compare
  78   (simple-string index index simple-string index index)
  79   (or index null)
  80   (foldable flushable))
  81
  82 (defknown %sxhash-simple-string (simple-string) hash
  83   (foldable flushable))
  84
  85 (defknown %sxhash-simple-substring (simple-string index) hash
  86   (foldable flushable))
  87
  88 (defknown symbol-hash (symbol) hash
  89   (flushable movable))
  90
  91 (defknown %set-symbol-hash (symbol hash)
  92   t (unsafe))
  93
  94 (defknown initialize-vector ((simple-array * (*)) &rest t)
  95   (simple-array * (*))
  96   (always-translatable flushable)
  97   :result-arg 0)
  98
  99 (defknown vector-fill* (t t t t) vector
 100   (unsafe)
 101   :result-arg 0)
 102
 103 (defknown vector-length (vector) index (flushable))
 104
 105 (defknown vector-sap ((simple-unboxed-array (*))) system-area-pointer
 106   (flushable))
 107
 108 (defknown lowtag-of (t) (unsigned-byte #.sb!vm:n-lowtag-bits)
 109   (flushable movable))
 110 (defknown widetag-of (t) (unsigned-byte #.sb!vm:n-widetag-bits)
 111   (flushable movable))
 112
 113 (defknown (get-header-data get-closure-length) (t) (unsigned-byte 24)
 114   (flushable))
 115 (defknown set-header-data (t (unsigned-byte 24)) t
 116   (unsafe))
 117
 118 (defknown %array-dimension (t index) index
 119   (flushable))
 120 (defknown %set-array-dimension (t index index) index
 121   ())
 122 (defknown %array-rank (t) index
 123   (flushable))
 124
 125 (defknown %make-instance (index) instance
 126   (flushable))
 127 (defknown %make-structure-instance (defstruct-description list &rest t) instance
 128   (flushable always-translatable))
 129 (defknown %instance-layout (instance) layout
 130   (foldable flushable))
 131 (defknown %set-instance-layout (instance layout) layout
 132   (unsafe))
 133 (defknown %instance-length (instance) index
 134   (foldable flushable))
 135 (defknown %instance-ref (instance index) t
 136   (flushable always-translatable))
 137 (defknown %instance-set (instance index t) t
 138   (unsafe always-translatable))
 139 (defknown %layout-invalid-error (t layout) nil)
 140
 141 (defknown %raw-instance-ref/word (instance index) sb!vm:word
 142   (flushable always-translatable))
 143 (defknown %raw-instance-set/word (instance index sb!vm:word) sb!vm:word
 144   (unsafe always-translatable))
 145 (defknown %raw-instance-ref/single (instance index) single-float
 146   (flushable always-translatable))
 147 (defknown %raw-instance-set/single (instance index single-float) single-float
 148   (unsafe always-translatable))
 149 (defknown %raw-instance-ref/double (instance index) double-float
 150   (flushable always-translatable))
 151 (defknown %raw-instance-set/double (instance index double-float) double-float
 152   (unsafe always-translatable))
 153 (defknown %raw-instance-ref/complex-single (instance index)
 154   (complex single-float)
 155   (flushable always-translatable))
 156 (defknown %raw-instance-set/complex-single
 157     (instance index (complex single-float))
 158   (complex single-float)
 159   (unsafe always-translatable))
 160 (defknown %raw-instance-ref/complex-double (instance index)
 161   (complex double-float)
 162   (flushable always-translatable))
 163 (defknown %raw-instance-set/complex-double
 164     (instance index (complex double-float))
 165   (complex double-float)
 166   (unsafe always-translatable))
 167
 168 #!+(or x86 x86-64 ppc)
 169 (defknown %raw-instance-atomic-incf/word (instance index sb!vm:word) sb!vm:word
 170     (unsafe always-translatable))
 171
 172 ;;; These two are mostly used for bit-bashing operations.
 173 (defknown %vector-raw-bits (t fixnum) sb!vm:word
 174   (flushable))
 175 (defknown (%set-vector-raw-bits) (t fixnum sb!vm:word) sb!vm:word
 176   (unsafe))
 177
 178
 179 (defknown allocate-vector ((unsigned-byte 8) index index) (simple-array * (*))
 180   (flushable movable))
 181
 182 (defknown make-array-header ((unsigned-byte 8) (unsigned-byte 24)) array
 183   (flushable movable))
 184
 185
 186 (defknown make-weak-pointer (t) weak-pointer
 187   (flushable))
 188
 189 (defknown %make-complex (real real) complex
 190   (flushable movable))
 191 (defknown %make-ratio (rational rational) ratio
 192   (flushable movable))
 193 (defknown make-value-cell (t) t
 194   (flushable movable))
 195
 196 ;;;; threading
 197
 198 #!+(and sb-lutex sb-thread)
 199 (progn
 200   (defknown sb!vm::%make-lutex () sb!vm::lutex ())
 201   (defknown sb!vm::lutexp (t) boolean (foldable flushable)))
 202
 203 (defknown (dynamic-space-free-pointer binding-stack-pointer-sap
 204                                       control-stack-pointer-sap)  ()
 205   system-area-pointer
 206   (flushable))
 207 \f
 208 ;;;; debugger support
 209
 210 (defknown current-sp () system-area-pointer (movable flushable))
 211 (defknown current-fp () system-area-pointer (movable flushable))
 212 (defknown stack-ref (system-area-pointer index) t (flushable))
 213 (defknown %set-stack-ref (system-area-pointer index t) t (unsafe))
 214 (defknown lra-code-header (t) t (movable flushable))
 215 (defknown fun-code-header (t) t (movable flushable))
 216 (defknown %make-lisp-obj (sb!vm:word) t (movable flushable))
 217 (defknown get-lisp-obj-address (t) sb!vm:word (movable flushable))
 218 (defknown fun-word-offset (function) index (movable flushable))
 219 \f
 220 ;;;; 32-bit logical operations
 221
 222 (defknown word-logical-not (sb!vm:word) sb!vm:word
 223   (foldable flushable movable))
 224
 225 (defknown (word-logical-and word-logical-nand
 226            word-logical-or word-logical-nor
 227            word-logical-xor word-logical-eqv
 228            word-logical-andc1 word-logical-andc2
 229            word-logical-orc1 word-logical-orc2)
 230           (sb!vm:word sb!vm:word) sb!vm:word
 231   (foldable flushable movable))
 232
 233 (defknown (shift-towards-start shift-towards-end) (sb!vm:word fixnum)
 234   sb!vm:word
 235   (foldable flushable movable))
 236 \f
 237 ;;;; bignum operations
 238
 239 (defknown %allocate-bignum (bignum-index) bignum-type
 240   (flushable))
 241
 242 (defknown %bignum-length (bignum-type) bignum-index
 243   (foldable flushable movable))
 244
 245 (defknown %bignum-set-length (bignum-type bignum-index) bignum-type
 246   (unsafe))
 247
 248 (defknown %bignum-ref (bignum-type bignum-index) bignum-element-type
 249   (flushable))
 250 #!+(or x86 x86-64)
 251 (defknown %bignum-ref-with-offset (bignum-type bignum-index (signed-byte 24))
 252   bignum-element-type (flushable always-translatable))
 253
 254 (defknown %bignum-set (bignum-type bignum-index bignum-element-type)
 255   bignum-element-type
 256   (unsafe))
 257 #!+(or x86 x86-64)
 258 (defknown %bignum-set-with-offset
 259   (bignum-type bignum-index (signed-byte 24) bignum-element-type)
 260   bignum-element-type (unsafe always-translatable))
 261
 262 (defknown %digit-0-or-plusp (bignum-element-type) boolean
 263   (foldable flushable movable))
 264
 265 (defknown (%add-with-carry %subtract-with-borrow)
 266           (bignum-element-type bignum-element-type (mod 2))
 267   (values bignum-element-type (mod 2))
 268   (foldable flushable movable))
 269
 270 (defknown %multiply-and-add
 271           (bignum-element-type bignum-element-type bignum-element-type
 272                                &optional bignum-element-type)
 273   (values bignum-element-type bignum-element-type)
 274   (foldable flushable movable))
 275
 276 (defknown %multiply (bignum-element-type bignum-element-type)
 277   (values bignum-element-type bignum-element-type)
 278   (foldable flushable movable))
 279
 280 (defknown %lognot (bignum-element-type) bignum-element-type
 281   (foldable flushable movable))
 282
 283 (defknown (%logand %logior %logxor) (bignum-element-type bignum-element-type)
 284   bignum-element-type
 285   (foldable flushable movable))
 286
 287 (defknown %fixnum-to-digit (fixnum) bignum-element-type
 288   (foldable flushable movable))
 289
 290 (defknown %floor (bignum-element-type bignum-element-type bignum-element-type)
 291   (values bignum-element-type bignum-element-type)
 292   (foldable flushable movable))
 293
 294 (defknown %fixnum-digit-with-correct-sign (bignum-element-type)
 295   (signed-byte #.sb!vm:n-word-bits)
 296   (foldable flushable movable))
 297
 298 (defknown (%ashl %ashr %digit-logical-shift-right)
 299           (bignum-element-type (mod #.sb!vm:n-word-bits)) bignum-element-type
 300   (foldable flushable movable))
 301 \f
 302 ;;;; bit-bashing routines
 303
 304 ;;; FIXME: there's some ugly duplication between the (INTERN (FORMAT ...))
 305 ;;; magic here and the same magic in src/code/bit-bash.lisp.  I don't know
 306 ;;; of any good way to clean it up, but it's definitely violating OAOO.
 307 (macrolet ((define-known-copiers ()
 308             `(progn
 309               ,@(loop for i = 1 then (* i 2)
 310                       collect `(defknown ,(intern (format nil "UB~D-BASH-COPY" i)
 311                                                   (find-package "SB!KERNEL"))
 312                                 ((simple-unboxed-array (*)) index (simple-unboxed-array (*)) index index)
 313                                 (values)
 314                                 ())
 315                       collect `(defknown ,(intern (format nil "SYSTEM-AREA-UB~D-COPY" i)
 316                                                   (find-package "SB!KERNEL"))
 317                                 (system-area-pointer index system-area-pointer index index)
 318                                 (values)
 319                                 ())
 320                       collect `(defknown ,(intern (format nil "COPY-UB~D-TO-SYSTEM-AREA" i)
 321                                                   (find-package "SB!KERNEL"))
 322                                 ((simple-unboxed-array (*)) index system-area-pointer index index)
 323                                 (values)
 324                                 ())
 325                       collect `(defknown ,(intern (format nil "COPY-UB~D-FROM-SYSTEM-AREA" i)
 326                                                   (find-package "SB!KERNEL"))
 327                                 (system-area-pointer index (simple-unboxed-array (*)) index index)
 328                                 (values)
 329                                 ())
 330                       until (= i sb!vm:n-word-bits)))))
 331   (define-known-copiers))
 332
 333 ;;; (not really a bit-bashing routine, but starting to take over from
 334 ;;; bit-bashing routines in byte-sized copies as of sbcl-0.6.12.29:)
 335 (defknown %byte-blt
 336   ((or (simple-unboxed-array (*)) system-area-pointer) index
 337    (or (simple-unboxed-array (*)) system-area-pointer) index index)
 338   (values)
 339   ())
 340 \f
 341 ;;;; code/function/fdefn object manipulation routines
 342
 343 (defknown code-instructions (t) system-area-pointer (flushable movable))
 344 (defknown code-header-ref (t index) t (flushable))
 345 (defknown code-header-set (t index t) t ())
 346
 347 (defknown fun-subtype (function) (unsigned-byte #.sb!vm:n-widetag-bits)
 348   (flushable))
 349 (defknown ((setf fun-subtype))
 350           ((unsigned-byte #.sb!vm:n-widetag-bits) function)
 351   (unsigned-byte #.sb!vm:n-widetag-bits)
 352   ())
 353
 354 (defknown make-fdefn (t) fdefn (flushable movable))
 355 (defknown fdefn-p (t) boolean (movable foldable flushable))
 356 (defknown fdefn-name (fdefn) t (foldable flushable))
 357 (defknown fdefn-fun (fdefn) (or function null) (flushable))
 358 (defknown (setf fdefn-fun) (function fdefn) t (unsafe))
 359 (defknown fdefn-makunbound (fdefn) t ())
 360
 361 (defknown %simple-fun-self (function) function
 362   (flushable))
 363 (defknown (setf %simple-fun-self) (function function) function
 364   (unsafe))
 365
 366 (defknown %closure-fun (function) function
 367   (flushable))
 368
 369 (defknown %closure-index-ref (function index) t
 370   (flushable))
 371
 372 (defknown %make-funcallable-instance (index) function
 373   (unsafe))
 374
 375 (defknown %funcallable-instance-info (function index) t (flushable))
 376 (defknown %set-funcallable-instance-info (function index t) t (unsafe))
 377 \f
 378 ;;;; mutator accessors
 379
 380 (defknown mutator-self () system-area-pointer (flushable movable))
 381
 382 (defknown %data-vector-and-index (array index)
 383                                  (values (simple-array * (*)) index)
 384                                  (foldable flushable))