diff --git a/test/CodeGen/X86/extend.ll b/test/CodeGen/X86/extend.ll
new file mode 100644
index 00000000000..1685d3ba421
--- /dev/null
+++ b/test/CodeGen/X86/extend.ll
@@ -0,0 +1,19 @@
+; RUN: llvm-as < %s | llc -march=x86 -x86-asm-syntax=intel | grep movzx | wc -l | grep 1
+; RUN: llvm-as < %s | llc -march=x86 -x86-asm-syntax=intel | grep movsx | wc -l | grep 1
+
+%G1 = internal global ubyte 0		; <ubyte*> [#uses=1]
+%G2 = internal global sbyte 0		; <sbyte*> [#uses=1]
+
+implementation   ; Functions:
+
+short %test1() {  ;; one zext
+	%tmp.0 = load ubyte* %G1		; <ubyte> [#uses=1]
+	%tmp.3 = cast ubyte %tmp.0 to short		; <short> [#uses=1]
+	ret short %tmp.3
+}
+
+short %test2() {  ;; one sext
+	%tmp.0 = load sbyte* %G2		; <sbyte> [#uses=1]
+	%tmp.3 = cast sbyte %tmp.0 to short		; <short> [#uses=1]
+	ret short %tmp.3
+}