0.9.2.47:

[sbcl.git] / src / compiler / x86 / sap.lisp

diff --git a/src/compiler/x86/sap.lisp b/src/compiler/x86/sap.lisp
index c834de3..7de8ab9 100644 (file)
--- a/src/compiler/x86/sap.lisp
+++ b/src/compiler/x86/sap.lisp
@@ -499,3 +499,23 @@
     (inst add
          sap
          (- (* vector-data-offset n-word-bytes) other-pointer-lowtag))))
+
+;;; Transforms for 64-bit SAP accessors.
+
+(deftransform sap-ref-64 ((sap offset) (* *))
+  '(logior (sap-ref-32 sap offset)
+           (ash (sap-ref-32 sap (+ offset 4)) 32)))
+
+(deftransform signed-sap-ref-64 ((sap offset) (* *))
+  '(logior (sap-ref-32 sap offset)
+           (ash (signed-sap-ref-32 sap (+ offset 4)) 32)))
+
+(deftransform %set-sap-ref-64 ((sap offset value) (* * *))
+  '(progn
+     (%set-sap-ref-32 sap offset (logand value #xffffffff))
+     (%set-sap-ref-32 sap (+ offset 4) (ash value -32))))
+
+(deftransform %set-signed-sap-ref-64 ((sap offset value) (* * *))
+  '(progn
+     (%set-sap-ref-32 sap offset (logand value #xffffffff))
+     (%set-signed-sap-ref-32 sap (+ offset 4) (ash value -32))))