"1.0.41.2": threads: Add memory-barrier framework.

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

diff --git a/src/compiler/fndb.lisp b/src/compiler/fndb.lisp
index 410266a..dfb0dcd 100644 (file)
--- a/src/compiler/fndb.lisp
+++ b/src/compiler/fndb.lisp
@@ -1577,6 +1577,16 @@
   ())
 (defknown style-warn (t &rest t) null ())
 
+
+;;;; memory barriers
+
+(defknown sb!vm:%compiler-barrier () (values) ())
+(defknown sb!vm:%memory-barrier () (values) ())
+(defknown sb!vm:%read-barrier () (values) ())
+(defknown sb!vm:%write-barrier () (values) ())
+(defknown sb!vm:%data-dependency-barrier () (values) ())
+
+
 ;;;; atomic ops
 (defknown %compare-and-swap-svref (simple-vector index t t) t
     (unsafe))