diff --git a/test/CodeGen/X86/2007-06-29-VecFPConstantCSEBug.ll b/test/CodeGen/X86/2007-06-29-VecFPConstantCSEBug.ll
new file mode 100644
index 00000000000..73ecf69ecdc
--- /dev/null
+++ b/test/CodeGen/X86/2007-06-29-VecFPConstantCSEBug.ll
@@ -0,0 +1,11 @@
+; RUN: llvm-as < %s | | llc -march=x86 -mattr=+sse2
+
+define void @test(<4 x float>* %arg) {
+	%tmp89 = getelementptr <4 x float>* %arg, i64 3
+	%tmp1144 = sub <4 x float> < float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00 >, zeroinitializer
+	store <4 x float> %tmp1144, <4 x float>* null
+	%tmp1149 = load <4 x float>* %tmp89
+	%tmp1150 = sub <4 x float> < float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00 >, %tmp1149
+	store <4 x float> %tmp1150, <4 x float>* %tmp89
+	ret void
+}