1 files changed, 48 insertions, 0 deletions
diff --git a/test/CodeGenCXX/microsoft-uuidof-mangling.cpp b/test/CodeGenCXX/microsoft-uuidof-mangling.cpp
new file mode 100644
index 000000000000..9019aa8c9217
--- /dev/null
+++ b/test/CodeGenCXX/microsoft-uuidof-mangling.cpp
@@ -0,0 +1,48 @@
+// RUN: %clang_cc1 -emit-llvm %s -o - -triple x86_64-unknown-unknown -fms-extensions | FileCheck %s
+// rdar://17784718
+
+typedef struct _GUID
+{
+    unsigned int  Data1;
+    unsigned short Data2;
+    unsigned short Data3;
+    unsigned char  Data4[ 8 ];
+} GUID;
+
+
+template < typename T, const GUID & T_iid = __uuidof(T)>
+class UUIDTest
+{
+public:
+	UUIDTest() { }
+};
+
+struct __declspec(uuid("EAFA1952-66F8-438B-8FBA-AF1BBAE42191")) TestStruct
+{
+	int foo;
+};
+
+template <class T> void test_uuidofType(void *arg[sizeof(__uuidof(T))] = 0) {}
+
+template <class T> void test_uuidofExpr(void *arg[sizeof(__uuidof(T::member))] = 0) {}
+
+struct HasMember { typedef TestStruct member; };
+
+int main(int argc, const char * argv[])
+{
+
+    UUIDTest<TestStruct> uuidof_test;
+    test_uuidofType<TestStruct>();
+    test_uuidofExpr<HasMember>();
+    return 0;
+}
+
+// CHECK: define i32 @main
+// CHECK: call void @_ZN8UUIDTestI10TestStructXu8__uuidoftS0_EEC1Ev
+// CHECK: call void @_Z15test_uuidofTypeI10TestStructEvPPv(i8** null)
+// CHECK: call void @_Z15test_uuidofExprI9HasMemberEvPPv(i8** null)
+
+// CHECK: define linkonce_odr void @_ZN8UUIDTestI10TestStructXu8__uuidoftS0_EEC1Ev
+// CHECK: define linkonce_odr void @_Z15test_uuidofTypeI10TestStructEvPPv
+// CHECK: define linkonce_odr void @_Z15test_uuidofExprI9HasMemberEvPPv
+// CHECK: define linkonce_odr void @_ZN8UUIDTestI10TestStructXu8__uuidoftS0_EEC2Ev