diff --git a/test/CodeGen/X86/2003-08-03-ReservedWordFunction.llx b/test/CodeGen/X86/2003-08-03-ReservedWordFunction.llx
new file mode 100644
index 00000000000..8ca27cffb04
--- /dev/null
+++ b/test/CodeGen/X86/2003-08-03-ReservedWordFunction.llx
@@ -0,0 +1,13 @@
+; This testcase ensures the code emitter does something about the fact that
+; we can have collisions with keywords
+
+; RUN: llvm-as < %s | llc | not grep '^byte:'
+
+void %byte() {
+  ret void
+}
+int %main() {
+  call void %byte()
+  ret int 0
+}
+