1 files changed, 44 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/template-linkage.cpp b/clang/test/CodeGenCXX/template-linkage.cpp
new file mode 100644
index 0000000..20508c1
--- /dev/null
+++ b/clang/test/CodeGenCXX/template-linkage.cpp
@@ -0,0 +1,44 @@
+// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
+template<typename T> struct A {
+  virtual void f(T) { }
+  inline void g() { } 
+};
+
+// Explicit instantiations have external linkage.
+
+// CHECK: define weak_odr void @_ZN1AIiE1gEv(
+template void A<int>::g();
+
+// CHECK: define weak_odr void @_ZN1AIfE1fEf(
+// CHECK: define weak_odr void @_ZN1AIfE1gEv(
+// FIXME: This should also emit the vtable.
+template struct A<float>;
+
+// CHECK: define weak_odr void @_Z1fIiEvT_
+template <typename T> void f(T) { }
+template void f<int>(int);
+
+// CHECK: define weak_odr void @_Z1gIiEvT_
+template <typename T> inline void g(T) { }
+template void g<int>(int);
+
+template<typename T>
+struct X0 {
+  virtual ~X0() { }
+};
+
+template<typename T>
+struct X1 : X0<T> {
+  virtual void blarg();
+};
+
+template<typename T> void X1<T>::blarg() { }
+
+extern template struct X0<char>;
+extern template struct X1<char>;
+
+// CHECK: define linkonce_odr void @_ZN2X1IcED1Ev(%struct.X1* %this) unnamed_addr
+void test_X1() {
+  X1<char> i1c;
+}
+