diff --git a/test/Regression/C++Frontend/2003-08-20-EnumSizeProblem.cpp b/test/Regression/C++Frontend/2003-08-20-EnumSizeProblem.cpp
new file mode 100644
index 00000000000..19d2d6ade3e
--- /dev/null
+++ b/test/Regression/C++Frontend/2003-08-20-EnumSizeProblem.cpp
@@ -0,0 +1,21 @@
+typedef enum
+{
+  _URC_NO_REASON = 0,
+  _URC_FOREIGN_EXCEPTION_CAUGHT = 1,
+  _URC_FATAL_PHASE2_ERROR = 2,
+  _URC_FATAL_PHASE1_ERROR = 3,
+  _URC_NORMAL_STOP = 4,
+  _URC_END_OF_STACK = 5,
+  _URC_HANDLER_FOUND = 6,
+  _URC_INSTALL_CONTEXT = 7,
+  _URC_CONTINUE_UNWIND = 8
+} _Unwind_Reason_Code;
+
+int foo( _Unwind_Reason_Code X) {
+  return X;
+}
+
+int main() {
+  foo(_URC_END_OF_STACK);
+  return 0;
+}