diff --git a/test/CodeGen/X86/trap.ll b/test/CodeGen/X86/trap.ll
new file mode 100644
index 00000000000..9a013ffbe56
--- /dev/null
+++ b/test/CodeGen/X86/trap.ll
@@ -0,0 +1,9 @@
+; RUN: llvm-as < %s | llc -march=x86 -mcpu=yonah | grep ud2
+define i32 @test() noreturn nounwind  {
+entry:
+	tail call void @llvm.trap( )
+	unreachable
+}
+
+declare void @llvm.trap() nounwind 
+