0.8.18.14:

[sbcl.git] / src / compiler / saptran.lisp

diff --git a/src/compiler/saptran.lisp b/src/compiler/saptran.lisp
index 1d6d4ee..f709cea 100644 (file)
--- a/src/compiler/saptran.lisp
+++ b/src/compiler/saptran.lisp
@@ -13,8 +13,29 @@
 \f
 ;;;; DEFKNOWNs
 
-(defknown foreign-symbol-address (simple-string) system-area-pointer
-  (movable flushable))
+#!+linkage-table
+(deftransform foreign-symbol-address-as-integer ((symbol &optional datap)
+                                                (simple-string boolean))
+  (if (and (constant-lvar-p symbol) (constant-lvar-p datap))
+      `(sap-int (foreign-symbol-address symbol datap))
+      (give-up-ir1-transform)))
+
+(deftransform foreign-symbol-address ((symbol &optional datap)
+                                     (simple-string &optional boolean))
+    #!-linkage-table
+    (if (null datap)
+       (give-up-ir1-transform)
+       `(foreign-symbol-address symbol))
+    #!+linkage-table
+    (if (and (constant-lvar-p symbol) (constant-lvar-p datap))
+       (let ((name (lvar-value symbol))
+             (datap (lvar-value datap)))
+         (if (or #+sb-xc-host t ; only static symbols on host
+                  (not datap)
+                 (find-foreign-symbol-in-table name *static-foreign-symbols*))
+             `(foreign-symbol-address ,name) ; VOP
+             `(foreign-symbol-dataref-address ,name))) ; VOP
+       (give-up-ir1-transform)))
 
 (defknown (sap< sap<= sap= sap>= sap>)
          (system-area-pointer system-area-pointer) boolean
@@ -22,12 +43,14 @@
 
 (defknown sap+ (system-area-pointer integer) system-area-pointer
   (movable flushable))
-(defknown sap- (system-area-pointer system-area-pointer) (signed-byte 32)
+(defknown sap- (system-area-pointer system-area-pointer) 
+               (signed-byte #.sb!vm::n-word-bits)
   (movable flushable))
 
-(defknown sap-int (system-area-pointer) (unsigned-byte #!-alpha 32 #!+alpha 64)
+(defknown sap-int (system-area-pointer)
+  (unsigned-byte #.sb!vm::n-machine-word-bits)
   (movable flushable))
-(defknown int-sap ((unsigned-byte #!-alpha 32 #!+alpha 64))
+(defknown int-sap ((unsigned-byte #.sb!vm::n-machine-word-bits))
   system-area-pointer (movable))
 
 (defknown sap-ref-8 (system-area-pointer fixnum) (unsigned-byte 8)
@@ -57,6 +80,14 @@
   (unsigned-byte 64)
   ())
 
+(defknown sap-ref-word (system-area-pointer fixnum)
+  (unsigned-byte #.sb!vm::n-machine-word-bits)
+  (flushable))
+(defknown %set-sap-ref-word
+    (system-area-pointer fixnum (unsigned-byte #.sb!vm::n-machine-word-bits))
+  (unsigned-byte #.sb!vm::n-machine-word-bits)
+  ())
+
 (defknown signed-sap-ref-8 (system-area-pointer fixnum) (signed-byte 8)
   (flushable))
 (defknown %set-signed-sap-ref-8 (system-area-pointer fixnum (signed-byte 8))
@@ -81,6 +112,14 @@
   (signed-byte 64)
   ())
 
+(defknown signed-sap-ref-word (system-area-pointer fixnum)
+  (signed-byte #.sb!vm::n-machine-word-bits)
+  (flushable))
+(defknown %set-signed-sap-ref-word
+    (system-area-pointer fixnum (signed-byte #.sb!vm::n-machine-word-bits))
+  (signed-byte #.sb!vm::n-machine-word-bits)
+  ())
+
 (defknown sap-ref-sap (system-area-pointer fixnum) system-area-pointer
   (flushable))
 (defknown %set-sap-ref-sap (system-area-pointer fixnum system-area-pointer)
@@ -161,3 +200,15 @@
   ;; redundancy.  --njf 2002-01-08
   #!+long-float (def sap-ref-long)
   #!+long-float (def %set-sap-ref-long))
+
+(macrolet ((def (fun args 32-bit 64-bit)
+              `(deftransform ,fun (,args)
+                 (ecase sb!vm::n-word-bits
+                   (32 '(,32-bit ,@args))
+                   (64 '(,64-bit ,@args))))))
+  (def sap-ref-word (sap offset) sap-ref-32 sap-ref-64)
+  (def signed-sap-ref-word (sap offset) signed-sap-ref-32 signed-sap-ref-64)
+  (def %set-sap-ref-word (sap offset value)
+    %set-sap-ref-32 %set-sap-ref-64)
+  (def %set-signed-sap-ref-word (sap offset value)
+    %set-signed-sap-ref-32 %set-signed-sap-ref-64))