refine the print out information

src/include/migraphx/op/gru.hpp

@@ -30,8 +30,8 @@ struct gru
     template <class Self, class F>
     static auto reflect(Self& self, F f)
     {
-        return pack(f(self.hidden_size, "hidden size"),
-                    f(self.actv_funcs, "activation functions"),
+        return pack(f(self.hidden_size, "hidden_size"),
+                    f(self.actv_funcs, "actv_func"),
                     f(self.direction, "direction"),
                     f(self.clip, "clip"),
                     f(self.linear_before_reset, "linear_before_reset"));

src/include/migraphx/op/lstm.hpp

@@ -28,8 +28,8 @@ struct lstm
     template <class Self, class F>
     static auto reflect(Self& self, F f)
     {
-        return pack(f(self.hidden_size, "hidden size"),
-                    f(self.actv_funcs, "activation functions"),
+        return pack(f(self.hidden_size, "hidden_size"),
+                    f(self.actv_funcs, "actv_func"),
                     f(self.direction, "direction"),
                     f(self.input_forget, "input_forget"));
     }

src/include/migraphx/op/rnn.hpp

@@ -28,8 +28,8 @@ struct rnn
     template <class Self, class F>
     static auto reflect(Self& self, F f)
     {
-        return pack(f(self.hidden_size, "hidden size"),
-                    f(self.actv_funcs, "activation functions"),
+        return pack(f(self.hidden_size, "hidden_size"),
+                    f(self.actv_funcs, "actv_func"),
                     f(self.direction, "direction"),
                     f(self.clip, "clip"));
     }

src/rewrite_rnn.cpp

@@ -1170,7 +1170,8 @@ std::vector<operation> rewrite_rnn::lstm_actv_funcs(instruction_ref ins) const
 namespace op {
 std::ostream& operator<<(std::ostream& os, rnn_direction v)
 {
-    os << static_cast<std::underlying_type<rnn_direction>::type>(v);
+    std::vector<std::string> rnn_direction_str = {"forward", "reverse", "bidirectional"};
+    os << rnn_direction_str[static_cast<std::underlying_type<rnn_direction>::type>(v)];
     return os;
 }
 } // namespace op