X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fx86-64%2Fmacros.lisp;h=03da6d7df6a87881aedb28d954788bc12530d5d8;hb=b9519773faa7b3c98915eccb9cb1fd8a8270ee56;hp=33235125417615bd94a731cbadb1279a166541ce;hpb=1fc851cde8352f4f3c1062ee46593e66a6284c60;p=sbcl.git

diff --git a/src/compiler/x86-64/macros.lisp b/src/compiler/x86-64/macros.lisp
index 3323512..03da6d7 100644
--- a/src/compiler/x86-64/macros.lisp
+++ b/src/compiler/x86-64/macros.lisp
@@ -356,11 +356,9 @@
        (:result-types ,el-type)
        (:generator 5
          (move rax old-value)
-         #!+sb-thread
-         (inst lock)
          (inst cmpxchg (make-ea :qword :base object :index index
                                 :disp (- (* ,offset n-word-bytes) ,lowtag))
-               new-value)
+               new-value :lock)
          (move value rax)))))
 
 (defmacro define-full-reffer (name type offset lowtag scs el-type &optional translate)