vm-fndb.lisp

开源跨平台Lisp编译器

;;;; signatures of machine-specific functions

;;;; 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!C")

;;;; internal type predicates

;;; Simple TYPEP uses that don't have any standard predicate are
;;; translated into non-standard unary predicates.
(defknown (fixnump bignump ratiop
           short-float-p single-float-p double-float-p long-float-p
           complex-rational-p complex-float-p complex-single-float-p
           complex-double-float-p #!+long-float complex-long-float-p
           complex-vector-p
           base-char-p %standard-char-p %instancep %other-pointer-p
           base-string-p simple-base-string-p
           #!+sb-unicode character-string-p
           #!+sb-unicode simple-character-string-p
           array-header-p
           sequencep extended-sequence-p
           simple-array-p simple-array-nil-p vector-nil-p
           simple-array-unsigned-byte-2-p
           simple-array-unsigned-byte-4-p simple-array-unsigned-byte-7-p
           simple-array-unsigned-byte-8-p simple-array-unsigned-byte-15-p
           simple-array-unsigned-byte-16-p
           #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
           simple-array-unsigned-byte-29-p
           simple-array-unsigned-byte-31-p
           simple-array-unsigned-byte-32-p
           #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
           simple-array-unsigned-byte-60-p
           #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
           simple-array-unsigned-byte-63-p
           #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
           simple-array-unsigned-byte-64-p
           simple-array-signed-byte-8-p simple-array-signed-byte-16-p
           #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
           simple-array-signed-byte-30-p
           simple-array-signed-byte-32-p
           #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
           simple-array-signed-byte-61-p
           #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
           simple-array-signed-byte-64-p
           simple-array-single-float-p simple-array-double-float-p
           #!+long-float simple-array-long-float-p
           simple-array-complex-single-float-p
           simple-array-complex-double-float-p
           #!+long-float simple-array-complex-long-float-p
           system-area-pointer-p realp
           ;; #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
           unsigned-byte-32-p
           ;; #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
           signed-byte-32-p
           #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
           unsigned-byte-64-p
           #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
           signed-byte-64-p
           vector-t-p weak-pointer-p code-component-p lra-p
           funcallable-instance-p)
  (t) boolean (movable foldable flushable))

;;;; miscellaneous "sub-primitives"

(defknown pointer-hash (t) hash (flushable))

(defknown %sp-string-compare
  (simple-string index index simple-string index index)
  (or index null)
  (foldable flushable))

(defknown %sxhash-simple-string (simple-string) index
  (foldable flushable))

(defknown %sxhash-simple-substring (simple-string index) index
  (foldable flushable))

(defknown symbol-hash (symbol) (integer 0 #.sb!xc:most-positive-fixnum)
  (flushable movable))

(defknown %set-symbol-hash (symbol (integer 0 #.sb!xc:most-positive-fixnum))
  t (unsafe))

(defknown vector-length (vector) index (flushable))

(defknown vector-sap ((simple-unboxed-array (*))) system-area-pointer
  (flushable))

(defknown lowtag-of (t) (unsigned-byte #.sb!vm:n-lowtag-bits)
  (flushable movable))
(defknown widetag-of (t) (unsigned-byte #.sb!vm:n-widetag-bits)
  (flushable movable))

(defknown (get-header-data get-closure-length) (t) (unsigned-byte 24)
  (flushable))
(defknown set-header-data (t (unsigned-byte 24)) t
  (unsafe))

(defknown %array-dimension (t index) index
  (flushable))
(defknown %set-array-dimension (t index index) index
  ())
(defknown %array-rank (t) index
  (flushable))

(defknown %make-instance (index) instance
  (flushable))
(defknown %make-structure-instance (defstruct-description list &rest t) instance
  (flushable always-translatable))
(defknown %instance-layout (instance) layout
  (foldable flushable))
(defknown %set-instance-layout (instance layout) layout
  (unsafe))
(defknown %instance-length (instance) index
  (foldable flushable))
(defknown %instance-ref (instance index) t
  (flushable always-translatable))
(defknown %instance-set (instance index t) t
  (unsafe always-translatable))
(defknown %layout-invalid-error (t layout) nil)

#!-hppa
(progn
(defknown %raw-instance-ref/word (instance index) sb!vm:word
  (flushable always-translatable))
(defknown %raw-instance-set/word (instance index sb!vm:word) sb!vm:word
  (unsafe always-translatable))
(defknown %raw-instance-ref/single (instance index) single-float
  (flushable always-translatable))
(defknown %raw-instance-set/single (instance index single-float) single-float
  (unsafe always-translatable))
(defknown %raw-instance-ref/double (instance index) double-float
  (flushable always-translatable))
(defknown %raw-instance-set/double (instance index double-float) double-float
  (unsafe always-translatable))
(defknown %raw-instance-ref/complex-single (instance index)
  (complex single-float)
  (flushable always-translatable))
(defknown %raw-instance-set/complex-single
    (instance index (complex single-float))
  (complex single-float)
  (unsafe always-translatable))
(defknown %raw-instance-ref/complex-double (instance index)
  (complex double-float)
  (flushable always-translatable))
(defknown %raw-instance-set/complex-double
    (instance index (complex double-float))
  (complex double-float)
  (unsafe always-translatable)))

#!+(or x86 x86-64)
(defknown %raw-instance-atomic-incf/word (instance index sb!vm:signed-word) sb!vm:word
    (unsafe always-translatable))

;;; %RAW-{REF,SET}-FOO VOPs should be declared as taking a RAW-VECTOR
;;; as their first argument (clarity and to match these DEFKNOWNs).
;;; We declare RAW-VECTOR as a primitive type so the VOP machinery
;;; will accept our VOPs as legitimate.  --njf, 2004-08-10
;;;
;;; These are only used on HPPA, since on HPPA implements raw slots in
;;; structures with an indirection vector; all other ports implement
;;; raw slots directly in the structure.  --njf, 2006-06-02
#!+hppa
(progn
(sb!xc:deftype raw-vector () '(simple-array sb!vm:word (*)))

(sb!vm::!def-primitive-type-alias raw-vector
                                  #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
                                  sb!vm::simple-array-unsigned-byte-32
                                  #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
                                  sb!vm::simple-array-unsigned-byte-64)

(defknown %raw-ref-single (raw-vector index) single-float
  (foldable flushable always-translatable))
(defknown %raw-ref-double (raw-vector index) double-float
  (foldable flushable always-translatable))
#!+long-float
(defknown %raw-ref-long (raw-vector index) long-float
  (foldable flushable always-translatable))
(defknown %raw-set-single (raw-vector index single-float) single-float
  (unsafe always-translatable))
(defknown %raw-set-double (raw-vector index double-float) double-float
  (unsafe always-translatable))
#!+long-float
(defknown %raw-set-long (raw-vector index long-float) long-float
  (unsafe always-translatable))

(defknown %raw-ref-complex-single (raw-vector index) (complex single-float)
  (foldable flushable always-translatable))
(defknown %raw-ref-complex-double (raw-vector index) (complex double-float)
  (foldable flushable always-translatable))

(defknown %raw-set-complex-single (raw-vector index (complex single-float))
  (complex single-float)
  (unsafe always-translatable))
(defknown %raw-set-complex-double (raw-vector index (complex double-float))
  (complex double-float)
  (unsafe always-translatable))
)

(defknown %raw-bits (t fixnum) sb!vm:word
  (foldable flushable))
#!+x86
(defknown %raw-bits-with-offset (t fixnum fixnum) sb!vm:word
  (flushable always-translatable))
(defknown (%set-raw-bits) (t fixnum sb!vm:word) sb!vm:word
  (unsafe))
#!+x86
(defknown (%set-raw-bits-with-offset) (t fixnum fixnum sb!vm:word) sb!vm:word
  (unsafe always-translatable))
;;; These two are mostly used for bit-bashing operations.