1 files changed, 47 insertions, 0 deletions
diff --git a/test/SemaCXX/devirtualize-vtable-marking.cpp b/test/SemaCXX/devirtualize-vtable-marking.cpp
new file mode 100644
index 000000000000..fc3e8ce7704c
--- /dev/null
+++ b/test/SemaCXX/devirtualize-vtable-marking.cpp
@@ -0,0 +1,47 @@
+// RUN: %clang_cc1 -verify -std=c++11 %s
+
+template <typename T> struct OwnPtr {
+  T *p;
+  ~OwnPtr() {
+    // expected-error@+1 {{invalid application of 'sizeof'}}
+    static_assert(sizeof(T) > 0, "incomplete T");
+    delete p;
+  }
+};
+
+namespace use_vtable_for_vcall {
+struct Incomplete; // expected-note {{forward declaration}}
+struct A {
+  virtual ~A() {}
+  virtual void m() {}
+};
+struct B : A { // expected-note {{in instantiation}}
+  B();
+  virtual void m() { }
+  virtual void m2() { static_cast<A *>(this)->m(); }
+  OwnPtr<Incomplete> m_sqlError;
+};
+
+B *f() {
+  return new B();
+}
+}
+
+namespace dont_mark_qualified_vcall {
+struct Incomplete;
+struct A {
+  virtual ~A() {}
+  virtual void m() {}
+};
+struct B : A {
+  B();
+  // Previously we would mark B's vtable referenced to devirtualize this call to
+  // A::m, even though it's not a virtual call.
+  virtual void m() { A::m(); }
+  OwnPtr<Incomplete> m_sqlError;
+};
+
+B *f() {
+  return new B();
+}
+}