1 files changed, 9 insertions, 0 deletions

diff --git a/test/SemaCXX/member-expr-anonymous-union.cpp b/test/SemaCXX/member-expr-anonymous-union.cpp
new file mode 100644
index 000000000000..9566df4a20ff
--- /dev/null
+++ b/test/SemaCXX/member-expr-anonymous-union.cpp
@@ -0,0 +1,9 @@
+// RUN: clang-cc %s -fsyntax-only -verify
+// PR5543
+
+struct A { int x; union { int* y; float& z; }; }; struct B : A {int a;};
+int* a(B* x) { return x->y; }
+
+struct x { union { int y; }; }; x y; template <int X> int f() { return X+y.y; }
+int g() { return f<2>(); }
+