Add unpack array

src/targets/gpu/kernels/include/migraphx/kernels/array.hpp

@@ -272,6 +272,18 @@ struct integral_const_array : array<T, sizeof...(Xs)>
     MIGRAPHX_DEVICE_CONSTEXPR integral_const_array() : base_array({Xs...}) {}
 };
 
+template <class T, class... Ts>
+constexpr auto make_const_array(T x, Ts... xs)
+{
+    return integral_const_array<typename T::value_type, x, xs...>{};
+}
+
+template <class T, T... Xs, class F>
+constexpr auto unpack(integral_const_array<T, Xs...>, F f)
+{
+    return f(_c<Xs>...);
+}
+
 template <class T, T... Xs, class F>
 constexpr auto transform(integral_const_array<T, Xs...>, F f)
 {