Turn on the new empty base subobject tracking code. It's a bit faster than the previous code. However, it still has quadratic performance, something which I intend to fix shortly in a subsequent patch.

llvm-svn: 105161

1 files changed, 17 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/class-layout.cpp b/clang/test/SemaCXX/class-layout.cpp
index 0a968c70654..d81944ab9b3 100644
--- a/clang/test/SemaCXX/class-layout.cpp
+++ b/clang/test/SemaCXX/class-layout.cpp
@@ -84,4 +84,21 @@ class F : virtual E { };
 struct G : virtual E, F { };
 
 SA(0, sizeof(G) == 24);
+
+}
+
+namespace Test2 {
+
+// Test that this somewhat complex class structure is laid out correctly.
+struct A { };
+struct B : A { virtual void b(); };
+struct C : virtual B { };
+struct D : virtual A { };
+struct E : virtual B, D { };
+struct F : E, virtual C { };
+struct G : virtual F, A { };
+struct H { G g; };
+
+SA(0, sizeof(H) == 24);
+
 }