1 files changed, 68 insertions, 0 deletions
diff --git a/test/SemaCXX/empty-class-layout.cpp b/test/SemaCXX/empty-class-layout.cpp
new file mode 100644
index 0000000000000..8b54ea1c66f28
--- /dev/null
+++ b/test/SemaCXX/empty-class-layout.cpp
@@ -0,0 +1,68 @@
+// RUN: clang-cc -triple x86_64-unknown-unknown %s -fsyntax-only -verify 
+
+#define SA(n, p) int a##n[(p) ? 1 : -1]
+
+struct A { int a; };
+SA(0, sizeof(A) == 4);
+
+struct B { };
+SA(1, sizeof(B) == 1);
+
+struct C : A, B { };
+SA(2, sizeof(C) == 4);
+
+struct D { };
+struct E : D { };
+struct F : E { };
+
+struct G : E, F { };
+SA(3, sizeof(G) == 2);
+
+struct Empty { Empty(); };
+
+struct I : Empty { 
+  Empty e;
+};
+SA(4, sizeof(I) == 2);
+
+struct J : Empty { 
+  Empty e[2];
+};
+SA(5, sizeof(J) == 3);
+
+template<int N> struct Derived : Empty, Derived<N - 1> { 
+};
+template<> struct Derived<0> : Empty { };
+
+struct S1 : virtual Derived<10> { 
+  Empty e;
+};
+SA(6, sizeof(S1) == 24);
+
+struct S2 : virtual Derived<10> { 
+  Empty e[2];
+};
+SA(7, sizeof(S2) == 24);
+
+struct S3 {
+  Empty e;
+};
+
+struct S4 : Empty, S3 { 
+};
+SA(8, sizeof(S4) == 2);
+
+struct S5 : S3, Empty {};
+SA(9, sizeof(S5) == 2);
+
+struct S6 : S5 { };
+SA(10, sizeof(S6) == 2);
+
+struct S7 : Empty {
+  void *v;
+};
+SA(11, sizeof(S7) == 8);
+
+struct S8 : Empty, A {
+};
+SA(12, sizeof(S8) == 4);