--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/CodeGen/X86/volatile.ll	Thu Dec 12 13:56:28 2013 +0900
@@ -0,0 +1,17 @@
+; RUN: llc < %s -march=x86 -mattr=sse2 | grep movsd | count 5
+; RUN: llc < %s -march=x86 -mattr=sse2 -O0 | grep -v esp | grep movsd | count 5
+
+@x = external global double
+
+define void @foo() nounwind  {
+  %a = load volatile double* @x
+  store volatile double 0.0, double* @x
+  store volatile double 0.0, double* @x
+  %b = load volatile double* @x
+  ret void
+}
+
+define void @bar() nounwind  {
+  %c = load volatile double* @x
+  ret void
+}