X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fx86-64%2Fsystem.lisp;h=1edf735b59671384a49035d25354a3a97ae099dd;hb=27b74ec6758f52b76e4f90cbf628f173a0cc6acb;hp=ce91fb436651e8b64d1b5d1c72465e0b72093632;hpb=9b1fade83db8453b75b8c7380eb12ce41b5b889c;p=sbcl.git

diff --git a/src/compiler/x86-64/system.lisp b/src/compiler/x86-64/system.lisp
index ce91fb4..1edf735 100644
--- a/src/compiler/x86-64/system.lisp
+++ b/src/compiler/x86-64/system.lisp
@@ -44,7 +44,7 @@
     (inst jmp :ne DONE)
 
     ;; Pick off fixnums.
-    (inst and al-tn 7)
+    (inst and al-tn fixnum-tag-mask)
     (inst jmp :e DONE)
 
     ;; must be an other immediate
@@ -361,3 +361,36 @@ number of CPU cycles elapsed as secondary value. EXPERIMENTAL."
     (inst inc (make-ea :qword :base count-vector
                        :disp (- (* (+ vector-data-offset index) n-word-bytes)
                                 other-pointer-lowtag)))))
+
+;;;; Memory barrier support
+
+#!+memory-barrier-vops
+(define-vop (%compiler-barrier)
+  (:policy :fast-safe)
+  (:translate %compiler-barrier)
+  (:generator 3))
+
+#!+memory-barrier-vops
+(define-vop (%memory-barrier)
+  (:policy :fast-safe)
+  (:translate %memory-barrier)
+  (:generator 3
+    (inst mfence)))
+
+#!+memory-barrier-vops
+(define-vop (%read-barrier)
+  (:policy :fast-safe)
+  (:translate %read-barrier)
+  (:generator 3))
+
+#!+memory-barrier-vops
+(define-vop (%write-barrier)
+  (:policy :fast-safe)
+  (:translate %write-barrier)
+  (:generator 3))
+
+#!+memory-barrier-vops
+(define-vop (%data-dependency-barrier)
+  (:policy :fast-safe)
+  (:translate %data-dependency-barrier)
+  (:generator 3))