1 files changed, 58 insertions, 0 deletions
diff --git a/test/CodeGenCXX/vtable-linkage.cpp b/test/CodeGenCXX/vtable-linkage.cpp
new file mode 100644
index 0000000..f2d914f
--- /dev/null
+++ b/test/CodeGenCXX/vtable-linkage.cpp
@@ -0,0 +1,58 @@
+// RUN: clang-cc %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
+
+namespace {
+  struct A {
+    virtual void f() { }
+  };
+}
+
+void f() { A b; }
+
+struct B {
+  B();
+  virtual void f();
+};
+
+B::B() { }
+
+struct C {
+  C();
+  virtual void f() { } 
+};
+
+C::C() { } 
+
+struct D {
+  virtual void f();
+};
+
+void D::f() { }
+
+static struct : D { } e;
+
+// B has a key function that is not defined in this translation unit so its vtable
+// has external linkage.
+// CHECK: @_ZTV1B = external constant
+
+// C has no key function, so its vtable should have weak_odr linkage.
+// CHECK: @_ZTS1C = weak_odr constant
+// CHECK: @_ZTI1C = weak_odr constant
+// CHECK: @_ZTV1C = weak_odr constant
+
+// D has a key function that is defined in this translation unit so its vtable is
+// defined in the translation unit.
+// CHECK: @_ZTS1D = constant
+// CHECK: @_ZTI1D = constant
+// CHECK: @_ZTV1D = constant
+
+// The anonymous struct for e has no linkage, so the vtable should have
+// internal linkage.
+// CHECK: @"_ZTS3$_0" = internal constant
+// CHECK: @"_ZTI3$_0" = internal constant
+// CHECK: @"_ZTV3$_0" = internal constant
+
+// The A vtable should have internal linkage since it is inside an anonymous 
+// namespace.
+// CHECK: @_ZTSN12_GLOBAL__N_11AE = internal constant
+// CHECK: @_ZTIN12_GLOBAL__N_11AE = internal constant
+// CHECK: @_ZTVN12_GLOBAL__N_11AE = internal constant