diff --git a/test/Regression/CodeGen/X86/2005-02-14-IllegalAssembler.ll b/test/Regression/CodeGen/X86/2005-02-14-IllegalAssembler.ll
new file mode 100644
index 00000000000..b8fdba01dd8
--- /dev/null
+++ b/test/Regression/CodeGen/X86/2005-02-14-IllegalAssembler.ll
@@ -0,0 +1,5 @@
+; RUN: llvm-as < %s | llc | not grep 18446744073709551612
+
+%A = external global int
+
+%Y = global int* getelementptr (int* %A, int -1)