[IE CLDNN] Don't force expected reorder layout & improve i64->i32 fal…

…lback (openvinotoolkit#1088)

inference-engine/thirdparty/clDNN/src/graph_optimizer/add_required_reorders.cpp

@@ -44,9 +44,6 @@ void add_required_reorders::add_reorder(program_impl& p, program_node* node, pro
     auto new_reorder = std::make_shared<reorder>(node->id() + "_reorder_" + usr->id(), node->id(), reorder_layout);
     auto& new_reorder_node = p.get_or_create(new_reorder);
 
-    // make sure that new_reorder_node has correct layout
-    new_reorder_node.set_output_layout(reorder_layout, false);
-
     // ToDo: add a method to program_impl class which adds an intermediate node given a node and its user
     auto it = std::find(usr->get_dependencies().begin(), usr->get_dependencies().end(), node);
     if (it == usr->get_dependencies().end()) {
@@ -98,17 +95,34 @@ void add_required_reorders::run(program_impl& p) {
                         usr->set_output_layout(current_layout, false);
                         if (usr->type()->does_possible_implementation_exist(p.get_engine(), *usr)) {
                             correct_layout_selected = true;
-                            break;
                         } else {
                             current_layout = original_layout;
                             current_layout.data_type = data_types::i32;
                             current_layout.format = node->get_output_layout().format;
                             usr->set_output_layout(current_layout, false);
                             if (usr->type()->does_possible_implementation_exist(p.get_engine(), *usr)) {
                                 correct_layout_selected = true;
-                                break;
                             }
                         }
+
+                        if (correct_layout_selected) {
+                            // change output_data_type field in usr to i32
+                            if ((static_cast<bool>(usr->get_primitive()->output_data_type) == true) &&
+                                (*(usr->get_primitive()->output_data_type) == data_types::i64)) {
+                                std::const_pointer_cast<primitive>(usr->get_primitive())->output_data_type = data_types::i32;
+                            }
+                            // add reorders between usr int32 output and inputs of its users
+                            auto next_usr_itr = usr->get_users().begin();
+                            while (next_usr_itr != usr->get_users().end()) {
+                                auto next_usr = *next_usr_itr++;
+                                if (!next_usr->is_type<reorder>()) {
+                                    if ((next_usr->get_output_layout() != usr->get_output_layout())) {
+                                        add_reorder(p, usr, next_usr);
+                                    }
+                                }
+                            }
+                            break;
+                        }
                     }
                 }
 
@@ -185,7 +199,13 @@ void add_required_reorders::run(program_impl& p) {
                             " kernel which satisfies output format dependecies.");
                     }
 
-                    // add reorders between usr int32 outputs and inputs of its users
+                    // change output_data_type field in usr to i32
+                    if ((static_cast<bool>(usr->get_primitive()->output_data_type) == true) &&
+                        (*(usr->get_primitive()->output_data_type) == data_types::i64)) {
+                        std::const_pointer_cast<primitive>(usr->get_primitive())->output_data_type = data_types::i32;
+                    }
+
+                    // add reorders between usr int32 output and inputs of its users
                     auto next_usr_itr = usr->get_users().begin();
                     while (next_usr_itr != usr->get_users().end()) {
                         auto next_usr = *next_usr_itr++;