Mono.Simd.SimdRuntime.IsMethodAccelerated problems

gistfile1.txt

 // re. http://docs.go-mono.com/?link=T%3aMono.Simd.SimdRuntime ...
// tried :


 static bool MinimalSimdSupport()
        {
            return SimdRuntime.IsMethodAccelerated (typeof (Vector4f), "op_Addition") &&
                   SimdRuntime.IsMethodAccelerated (typeof (Vector4f), "op_Multiply") &&
                   SimdRuntime.IsMethodAccelerated (typeof (VectorOperations), "Shuffle", typeof (Vector4f), typeof (ShuffleSel));
        }

        static bool EnhancedSimdSupport()
        {
            return SimdRuntime.IsMethodAccelerated (typeof (VectorOperations), "HorizontalAdd", typeof (Vector4f), typeof (Vector4f)) &&
                   SimdRuntime.IsMethodAccelerated (typeof (Vector4f), "op_Multiply");
        }

        static void Main(string[] args)
        {
            Console.WriteLine("Minimal SIMD Support: " + MinimalSimdSupport());
            Console.WriteLine("Enhanched SIMD Support: " + EnhancedSimdSupport());

        }
}

// ===== FUU:

Unhandled Exception:
System.Reflection.AmbiguousMatchException: Ambiguous matching in method resolution
  at System.Reflection.Binder.FindMostDerivedMatch (System.Reflection.MethodBase[] match) [0x00000] in <filename unknown>:0 
  at System.MonoType.GetMethodImpl (System.String name, BindingFlags bindingAttr, System.Reflection.Binder binder, CallingConventions callConvention, System.Type[] types, System.Reflection.ParameterModifier[] modifiers) [0x00000] in <filename unknown>:0 
  at System.Type.GetMethod (System.String name) [0x00000] in <filename unknown>:0 
  at Mono.Simd.SimdRuntime.MethodAccelerationMode (System.Type type, System.String method, System.Type[] signature) [0x00000] in <filename unknown>:0 
  at Mono.Simd.SimdRuntime.IsMethodAccelerated (System.Type type, System.String method) [0x00000] in <filename unknown>:0 
  at VectorizedQueryTest.Program.MinimalSimdSupport () [0x00000] in <filename unknown>:0 
  at VectorizedQueryTest.Program.Main (System.String[] args) [0x00000] in <filename unknown>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.Reflection.AmbiguousMatchException: Ambiguous matching in method resolution
  at System.Reflection.Binder.FindMostDerivedMatch (System.Reflection.MethodBase[] match) [0x00000] in <filename unknown>:0 
  at System.MonoType.GetMethodImpl (System.String name, BindingFlags bindingAttr, System.Reflection.Binder binder, CallingConventions callConvention, System.Type[] types, System.Reflection.ParameterModifier[] modifiers) [0x00000] in <filename unknown>:0 
  at System.Type.GetMethod (System.String name) [0x00000] in <filename unknown>:0 
  at Mono.Simd.SimdRuntime.MethodAccelerationMode (System.Type type, System.String method, System.Type[] signature) [0x00000] in <filename unknown>:0 
  at Mono.Simd.SimdRuntime.IsMethodAccelerated (System.Type type, System.String method) [0x00000] in <filename unknown>:0 
  at VectorizedQueryTest.Program.MinimalSimdSupport () [0x00000] in <filename unknown>:0 
  at VectorizedQueryTest.Program.Main (System.String[] args) [0x00000] in <filename unknown>:0