[mcs] Remove value type constrained type parameter instantiation optimization to handle parameterless struct constructors

1 files changed, 24 insertions, 0 deletions

diff --git a/mcs/tests/gtest-623.cs b/mcs/tests/gtest-623.cs
new file mode 100644
index 00000000000..ce9b79d1bd1
--- /dev/null
+++ b/mcs/tests/gtest-623.cs
@@ -0,0 +1,24 @@
+// Compiler options: -r:gtest-623-lib.dll
+
+using System;
+
+public class C
+{
+	static bool Test<T> () where T : struct, I
+	{
+		var t = new T ();
+		if (t.GetValue () != 3)
+			return false;
+
+		return true;
+	}
+
+	public static int Main ()
+	{
+		if (!Test<S> ())
+			return 1;
+
+		Console.WriteLine ("ok");
+		return 0;
+	}
+}
\ No newline at end of file