1 files changed, 27 insertions, 0 deletions
diff --git a/test/SemaCXX/unused.cpp b/test/SemaCXX/unused.cpp
index 54898c828ec6..fbaf8c8bf3c1 100644
--- a/test/SemaCXX/unused.cpp
+++ b/test/SemaCXX/unused.cpp
@@ -34,3 +34,30 @@ namespace derefvolatile {
     (void)y; // don't warn here, because it's a common pattern.
   }
 }
+
+// <rdar://problem/12359208>
+namespace AnonObject {
+  struct Foo {
+    Foo(const char* const message);
+    ~Foo();
+  };
+  void f() {
+    Foo("Hello World!");  // don't warn
+    int(1); // expected-warning {{expression result unused}}
+  }
+}
+
+// Test that constructing an object (which may have side effects) with
+// constructor arguments which are dependent doesn't produce an unused value
+// warning.
+namespace UnresolvedLookup {
+  struct Foo {
+    Foo(int i, int j);
+  };
+  template <typename T>
+  struct Bar {
+    void f(T t) {
+      Foo(t, 0);  // no warning
+    }
+  };
+}