1 files changed, 15 insertions, 0 deletions
diff --git a/test/SemaCXX/unused.cpp b/test/SemaCXX/unused.cpp
new file mode 100644
index 000000000000..55f959de0f02
--- /dev/null
+++ b/test/SemaCXX/unused.cpp
@@ -0,0 +1,15 @@
+// RUN: clang-cc -fsyntax-only -verify %s
+// PR4103 : Make sure we don't get a bogus unused expression warning
+class APInt {
+  char foo;
+};
+class APSInt : public APInt {
+  char bar;
+public:
+  APSInt &operator=(const APSInt &RHS);
+};
+
+APSInt& APSInt::operator=(const APSInt &RHS) {
+  APInt::operator=(RHS);
+  return *this;
+}