Check in LLVM r95781.
diff --git a/test/SemaCXX/alignof-sizeof-reference.cpp b/test/SemaCXX/alignof-sizeof-reference.cpp
new file mode 100644
index 0000000..f02282d
--- /dev/null
+++ b/test/SemaCXX/alignof-sizeof-reference.cpp
@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 -std=c++0x -fsyntax-only -verify %s
+
+struct s0; // expected-note {{forward declaration}}
+char ar[sizeof(s0&)]; // expected-error {{invalid application of 'sizeof' to an incomplete type}}
+void test() {
+ char &r = ar[0];
+ static_assert(alignof(r) == 1, "bad alignment");
+ static_assert(sizeof(r) == 1, "bad size");
+}