1 files changed, 35 insertions, 1 deletions
diff --git a/test/CodeGenCXX/duplicate-mangled-name.cpp b/test/CodeGenCXX/duplicate-mangled-name.cpp
index e57012e..104bb6e 100644
--- a/test/CodeGenCXX/duplicate-mangled-name.cpp
+++ b/test/CodeGenCXX/duplicate-mangled-name.cpp
@@ -1,4 +1,7 @@
-// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm-only %s -verify
+// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm-only %s -verify -DTEST1
+// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm-only %s -verify -DTEST2
+
+#ifdef TEST1
 
 // rdar://15522601
 class MyClass {
@@ -8,3 +11,34 @@ void MyClass::meth() { } // expected-note {{previous}}
 extern "C" {
   void _ZN7MyClass4methEv() { } // expected-error {{definition with same mangled name as another definition}}
 }
+
+#elif TEST2
+
+// We expect no warnings here, as there is only declaration of _ZN1TD1Ev function, no definitions.
+extern "C" void _ZN1TD1Ev();
+struct T {
+  ~T() {}
+};
+
+void foo() {
+  _ZN1TD1Ev();
+  T t;
+}
+
+extern "C" void _ZN2T2D2Ev() {}; // expected-note {{previous definition is here}}
+
+struct T2 {
+  ~T2() {} // expected-error {{definition with same mangled name as another definition}}
+};
+
+void bar() {
+  _ZN2T2D2Ev();
+  T2 t;
+}
+
+#else
+
+#error Unknwon test
+
+#endif
+