diff --git a/llvm/test/CodeGen/X86/2009-03-26-NoImplicitFPBug.ll b/llvm/test/CodeGen/X86/2009-03-26-NoImplicitFPBug.ll
new file mode 100644
index 000000000000..0e31942e468d
--- /dev/null
+++ b/llvm/test/CodeGen/X86/2009-03-26-NoImplicitFPBug.ll
@@ -0,0 +1,12 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 -no-implicit-float
+
+define double @t(double %x) nounwind ssp {
+entry:
+	br i1 false, label %return, label %bb3
+
+bb3:		; preds = %entry
+	ret double 0.000000e+00
+
+return:		; preds = %entry
+	ret double undef
+}