--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/ext/dll-MI1.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,39 @@
+// Class definitions for dllexport-MI1.C and dllimport-MI1.C
+
+#ifdef BUILDING_MI_DLL
+#define  DLL_IMPEXP __attribute__ ((dllexport))
+#else
+#define  DLL_IMPEXP __attribute__ ((dllimport))
+#endif
+
+
+#define D1_return 1
+#define D2_return 2
+
+class DLL_IMPEXP MBase
+{
+public:
+  virtual int vf() const = 0;
+  virtual ~MBase();
+};
+
+class DLL_IMPEXP D1 : virtual public MBase
+{
+public:
+  int vf() const;
+};
+
+class DLL_IMPEXP D2 : virtual public MBase
+{
+public:
+  D2 ();
+  D2 (D2 const&);
+  int vf() const;
+};
+
+class DLL_IMPEXP MI1 : public D1, public D2
+{
+public:
+  int vf() const;
+};
+