1 files changed, 53 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/ext/dllimport-MI1.C b/gcc/testsuite/g++.dg/ext/dllimport-MI1.C
new file mode 100644
index 00000000000..4efdea4e58b
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/dllimport-MI1.C
@@ -0,0 +1,53 @@
+// { dg-do compile { target i?86-*-cygwin* i?86-*-mingw*} }
+//  Test handling of MI thunks in dllimported classes.
+
+// To build the dll and client app:
+// g++ -shared -o MI.dll dllexport-MI1.C
+// g++ -o MItest.exe dllimport-MI1.C  -L. MI.dll
+
+#include <stdlib.h>
+#include "dll-MI1.h"
+
+extern DLL_IMPEXP MI1 dllMI1;
+
+// This should use the implicit copy ctor for D1 (not imported)
+// and the explicit copy ctor for D2 (dll-imported). 
+MI1 dllMI1LocalCopy = dllMI1;
+
+class  MI2 : public D1, public D2
+{
+public:
+  int vf() const { return D2::vf();}
+};
+
+class  MI3 : public MI1
+{
+};
+
+int main ()
+
+{
+  MI1 bar1;
+  MI2 bar2; 
+  MI3 bar3;
+
+  if (dllMI1.vf() != D1_return)
+    abort();
+
+  if (dllMI1LocalCopy.vf() != D1_return)
+    abort();
+
+  if (bar1.vf() != D1_return)
+    abort();
+
+  if (bar2.vf() != (D2_return))
+    abort();
+
+  if (bar3.vf() != D1_return )
+    abort();
+}
+
+// Scan for import of explicit copy ctor for D2, but no import
+// of compiler generated copy ctor for D1. 
+// { dg-final { scan-assembler  "__imp___ZN2D2C2ERKS_" } }
+// { dg-final { scan-assembler-not "__imp___ZN2D1C2ERKS_" } }