1 files changed, 94 insertions, 0 deletions
diff --git a/compiler/moco/lang/include/moco/IR/Nodes/TFConst.h b/compiler/moco/lang/include/moco/IR/Nodes/TFConst.h
new file mode 100644
index 000000000..7c2595fcb
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+++ b/compiler/moco/lang/include/moco/IR/Nodes/TFConst.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2019 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 __MOCO_IR_TFCONSTANT_H__
+#define __MOCO_IR_TFCONSTANT_H__
+
+#include "moco/IR/TFNodeDecl.h"
+
+#include <loco/IR/DataTypeTraits.h>
+#include <loco/IR/NodeMixins.h>
+#include <loco/IR/TensorShape.h>
+
+#include <vector>
+
+namespace moco
+{
+
+/// @note TFConst corresponds to the following GraphDef
+/*
+node {
+  name: "val"
+  op: "Const"
+  attr {
+    key: "dtype"
+    value { type: DT_FLOAT }
+  }
+  attr {
+    key: "value"
+    value {
+      tensor {
+        dtype: DT_FLOAT
+        tensor_shape {
+          dim { size: 1 }
+          dim { size: 3 }
+          dim { size: 4 }
+          dim { size: 4 }
+        }
+        float_val: 2.1
+      }
+    }
+  }
+}
+*/
+
+/**
+ * @brief  IR for tf.constant
+ *
+ * @note   Implementation for this class came from Canonical ConstGen
+ *         Read comments in loco::ConstGen for details
+ */
+class TFConst final : public FixedArityNode<0, TFNodeImpl<TFOpcode::Const>>,
+                      public loco::NodeMixin<loco::NodeTrait::DataType>,
+                      public loco::NodeMixin<loco::NodeTrait::TensorShape>
+{
+public:
+  TFConst() = default;
+
+public:
+  template <loco::DataType DT> uint32_t size(void) const;
+  template <loco::DataType DT> void size(uint32_t size);
+
+  template <loco::DataType DT> const typename loco::DataTypeImpl<DT>::Type &at(uint32_t n) const;
+  template <loco::DataType DT> typename loco::DataTypeImpl<DT>::Type &at(uint32_t n);
+
+private:
+  std::vector<uint8_t> _data;
+};
+
+} // namespace moco
+
+namespace moco
+{
+
+loco::TensorShape tensor_shape(const TFConst *node);
+
+uint32_t num_elements(const TFConst *tfconst);
+bool same_shape(const TFConst *lhs, const TFConst *rhs);
+
+} // namespace moco
+
+#endif // __MOCO_IR_TFCONSTANT_H__