1 files changed, 114 insertions, 0 deletions
diff --git a/runtime/onert/core/include/ir/Graph.h b/runtime/onert/core/include/ir/Graph.h
new file mode 100644
index 000000000..a61d1861c
--- /dev/null
+++ b/runtime/onert/core/include/ir/Graph.h
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ONERT_IR_GRAPH_H__
+#define __ONERT_IR_GRAPH_H__
+
+#include <functional>
+#include <unordered_map>
+
+#include "ir/Operands.h"
+#include "ir/Operations.h"
+#include "ir/OpSequence.h"
+#include "ir/OpSequences.h"
+
+namespace onert
+{
+namespace backend
+{
+namespace custom
+{
+class IKernelBuilder;
+} // namespace custom
+} // namespace backend
+} // namespace onert
+
+namespace onert
+{
+namespace ir
+{
+
+class Graph
+{
+private:
+  enum class Phase
+  {
+    BUILDING,
+    MODEL
+  };
+
+public:
+  Graph(void);
+  ~Graph(void);
+
+  // Graph Building
+public:
+  OperandIndex addOperand(const Shape &shape, const TypeInfo &type);
+  OperationIndex addOperation(std::unique_ptr<Operation> &&node);
+  void setOperandValue(const OperandIndex &ind, std::shared_ptr<Data> data);
+  void addInput(const OperandIndex &ind);
+  void addOutput(const OperandIndex &ind);
+  void finishBuilding(void);
+  void removeOperand(const OperandIndex &ind) { _operands.remove(ind); }
+  bool isBuildingPhase(void) const { return _phase == Phase::BUILDING; }
+  void setLayout(Layout layout) { _layout = layout; }
+
+private:
+  void initializeUseDef();
+
+  // Custom operations support
+public:
+  void
+  bindKernelBuilder(const std::shared_ptr<onert::backend::custom::IKernelBuilder> &kernel_builder)
+  {
+    _kernel_builder = kernel_builder;
+  }
+
+  const std::shared_ptr<backend::custom::IKernelBuilder> &getKernelBuilder() const
+  {
+    return _kernel_builder;
+  }
+
+private:
+  std::shared_ptr<backend::custom::IKernelBuilder> _kernel_builder;
+
+  // Accessors
+public:
+  const OperandIndexSequence &getInputs() const { return _inputs; }
+  OperandIndexSequence &getInputs() { return _inputs; }
+  const OperandIndexSequence &getOutputs() const { return _outputs; }
+  OperandIndexSequence &getOutputs() { return _outputs; }
+  const Operands &operands() const { return _operands; }
+  Operands &operands() { return _operands; } // TODO Remove this non-const accessor
+  const Operations &operations() const { return _operations; }
+  Operations &operations() { return _operations; }
+  Layout layout() { return _layout; }
+
+private:
+  Phase _phase{Phase::BUILDING};
+  Operations _operations;
+  Operands _operands;
+  OperandIndexSequence _inputs;
+  OperandIndexSequence _outputs;
+  std::unordered_map<SubgraphIndex, std::shared_ptr<Graph>> _subgraphs;
+  // TFLite and circle's default layout is NHWC;
+  Layout _layout{Layout::NHWC};
+};
+
+} // namespace ir
+} // namespace onert
+
+#endif // __ONERT_IR_GRAPH_H__