1 files changed, 22 insertions, 0 deletions

diff --git a/test/SemaCXX/virtual-member-functions-key-function.cpp b/test/SemaCXX/virtual-member-functions-key-function.cpp
new file mode 100644
index 0000000000000..4e7ff69b2edfc
--- /dev/null
+++ b/test/SemaCXX/virtual-member-functions-key-function.cpp
@@ -0,0 +1,22 @@
+// RUN: clang-cc -fsyntax-only -verify %s
+struct A {
+  virtual ~A();
+};
+
+struct B : A {  // expected-error {{no suitable member 'operator delete' in 'B'}}
+  B() { }  // expected-note {{implicit default destructor for 'struct B' first required here}}
+  void operator delete(void *, int); // expected-note {{'operator delete' declared here}}
+};
+
+struct C : A {  // expected-error {{no suitable member 'operator delete' in 'C'}}
+  void operator delete(void *, int); // expected-note {{'operator delete' declared here}}
+};
+
+void f() {
+  // new B should mark the constructor as used, which then marks
+  // all the virtual members as used, because B has no key function.
+  (void)new B;
+
+  // Same here, except that C has an implicit constructor.
+  (void)new C; // expected-note {{implicit default destructor for 'struct C' first required here}}
+}