Merge pull request #34 from ROCmSoftwarePlatform/onnx_initializer

Added reading from initializer in ONNX

src/onnx/onnx.cpp

@@ -216,13 +216,27 @@ struct onnx_parser
     void parse_graph(const onnx::GraphProto& graph)
     {
         nodes = get_nodes(graph);
+        std::unordered_map<std::string, onnx::TensorProto> initializer_data;
+        for(auto&& f : graph.initializer())
+        {
+            initializer_data[f.name()] = f;
+        }
         for(auto&& input : graph.input())
         {
             const std::string& name = input.name();
+            // Does the input have an initializer?
+            if(contains(initializer_data, name))
+            {
+                auto t             = initializer_data[name];
+                instructions[name] = prog.add_literal(parse_tensor(t));
+            }
+            else
+            {
                 // TODO: Get shape of input parameter
                 shape s            = parse_type(input.type());
                 instructions[name] = prog.add_parameter(name, s);
             }
+        }
         for(auto&& p : nodes)
         {
             this->parse_node(get_name(p.second));