diff --git a/test/SemaCXX/constexpr-factorial.cpp b/test/SemaCXX/constexpr-factorial.cpp
new file mode 100644
index 0000000..55ac8f2
--- /dev/null
+++ b/test/SemaCXX/constexpr-factorial.cpp
@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only %s
+
+constexpr unsigned oddfac(unsigned n) {
+  return n == 1 ? 1 : n * oddfac(n-2);
+}
+constexpr unsigned k = oddfac(999);
+
+using A = int[k % 256];
+using A = int[73];