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diff src/cpu/x86/vm/stubGenerator_x86_64.cpp @ 671:d0994e5bebce

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6822204: volatile fences should prefer lock:addl to actual mfence instructions Reviewed-by: kvn, phh
author never
date Thu, 26 Mar 2009 14:31:45 -0700
parents bd441136a5ce
children df6caf649ff7
line wrap: on
line diff
--- a/src/cpu/x86/vm/stubGenerator_x86_64.cpp	Tue Mar 24 15:09:52 2009 -0700
+++ b/src/cpu/x86/vm/stubGenerator_x86_64.cpp	Thu Mar 26 14:31:45 2009 -0700
@@ -637,7 +637,7 @@
   address generate_orderaccess_fence() {
     StubCodeMark mark(this, "StubRoutines", "orderaccess_fence");
     address start = __ pc();
-    __ mfence();
+    __ membar(Assembler::StoreLoad);
     __ ret(0);
 
     return start;