diff --git a/test/CodeGen/X86/2010-07-18-sqrt.ll b/test/CodeGen/X86/2010-07-18-sqrt.ll
new file mode 100644
index 00000000000..f8369124acd
--- /dev/null
+++ b/test/CodeGen/X86/2010-07-18-sqrt.ll
@@ -0,0 +1,17 @@
+; RUN: llc < %s -march=x86 -mattr=+sse2 | FileCheck %s
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
+target triple = "x86_64-apple-darwin10.0.0"
+
+define float @foo(float %x) nounwind readnone ssp {
+entry:
+; CHECK-NOT: cvtss2sd
+; CHECK-NOT: sqrtsd
+; CHECK-NOT: cvtsd2ss
+; CHECK: sqrtss
+  %conv = fpext float %x to double                ; <double> [#uses=1]
+  %call = tail call double @sqrt(double %conv) nounwind ; <double> [#uses=1]
+  %conv1 = fptrunc double %call to float          ; <float> [#uses=1]
+  ret float %conv1
+}
+
+declare double @sqrt(double) readnone