1 files changed, 26 insertions, 0 deletions
diff --git a/test/SemaCXX/vtordisp-mode.cpp b/test/SemaCXX/vtordisp-mode.cpp
new file mode 100644
index 000000000000..dc91534d26b7
--- /dev/null
+++ b/test/SemaCXX/vtordisp-mode.cpp
@@ -0,0 +1,26 @@
+// RUN: %clang_cc1 -triple i686-pc-win32 -std=c++11 -vtordisp-mode=0 -DVTORDISP_MODE=0 %s -verify
+// RUN: %clang_cc1 -triple i686-pc-win32 -std=c++11 -vtordisp-mode=1 -DVTORDISP_MODE=1 %s -verify
+// RUN: %clang_cc1 -triple i686-pc-win32 -std=c++11 -vtordisp-mode=2 -DVTORDISP_MODE=2 %s -verify
+
+// expected-no-diagnostics
+
+struct A {
+  A();
+  virtual void foo();
+};
+
+// At /vd1, there is a vtordisp before A.
+struct B : virtual A {
+  B();
+  virtual void foo();
+  virtual void bar();
+};
+
+// At /vd2, there is a vtordisp before B, but only because it has its own
+// vftable.
+struct C : virtual B {
+  C();
+};
+
+// There are two vfptrs, two vbptrs, and some number of vtordisps.
+static_assert(sizeof(C) == 2 * 4 + 2 * 4 + 4 * VTORDISP_MODE, "size mismatch");