diff --git a/llvm/test/FrontendC/wchar-const.c b/llvm/test/FrontendC/wchar-const.c
new file mode 100644
index 000000000000..0cb5ecb4a886
--- /dev/null
+++ b/llvm/test/FrontendC/wchar-const.c
@@ -0,0 +1,9 @@
+// RUN: %llvmgcc -S %s -o - | grep {constant \\\[18 x} | grep { 84, }
+// This should pass for any endianness combination of host and target.
+#include <ctype.h>
+extern void foo(const wchar_t* p);
+int main (int argc, const char * argv[])
+{
+ foo(L"This is some text");
+ return 0;
+}