[onert/train] Introduce Pad operation (Samsung#12524)

This commit introduces Pad operation in train.

ONE-DCO-1.0-Signed-off-by: Yongseop Kim <[email protected]>

runtime/onert/core/include/ir/train/Operations.Include.h

@@ -23,6 +23,7 @@
 #include "ir/train/operation/ElementwiseActivation.h"
 #include "ir/train/operation/FullyConnected.h"
 #include "ir/train/operation/Loss.h"
+#include "ir/train/operation/Pad.h"
 #include "ir/train/operation/Permute.h"
 #include "ir/train/operation/Pool2D.h"
 #include "ir/train/operation/Reduce.h"

runtime/onert/core/include/ir/train/Operations.lst

@@ -24,6 +24,7 @@ OP(DepthwiseConv2D)
 OP(ElementwiseActivation)
 OP(FullyConnected)
 OP(Loss)
+OP(Pad)
 OP(Permute)
 OP(Pool2D)
 OP(Reduce)

runtime/onert/core/include/ir/train/operation/Pad.h

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2024 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_TRAIN_OPERATION_PAD_H__
+#define __ONERT_IR_TRAIN_OPERATION_PAD_H__
+
+#include "ir/operation/Pad.h"
+#include "ir/train/ITrainableOperation.h"
+
+namespace onert
+{
+namespace ir
+{
+namespace train
+{
+namespace operation
+{
+
+class Pad : public ir::operation::Pad, public ITrainableOperation
+{
+private:
+  using OperationType = ir::operation::Pad;
+
+public:
+  Pad(const OperationType &operation);
+
+public:
+  std::unique_ptr<ITrainableOperation> clone() const override;
+  void accept(OperationVisitor &v) const override;
+  void accept(TrainableOperationVisitor &v) const override;
+};
+
+} // namespace operation
+} // namespace train
+} // namespace ir
+} // namespace onert
+
+#endif // __ONERT_IR_TRAIN_OPERATION_PAD_H__

runtime/onert/core/src/ir/train/operation/Pad.cc

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2024 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.
+ */
+
+#include "ir/train/operation/Pad.h"
+
+#include "ir/OperationVisitor.h"
+#include "ir/train/TrainableOperationVisitor.h"
+
+namespace onert
+{
+namespace ir
+{
+namespace train
+{
+namespace operation
+{
+
+std::unique_ptr<ITrainableOperation> Pad::clone() const { return std::make_unique<Pad>(*this); }
+
+void Pad::accept(OperationVisitor &v) const { v.visit(*this); }
+
+void Pad::accept(TrainableOperationVisitor &v) const { v.visit(*this); }
+
+Pad::Pad(const OperationType &operation)
+  : OperationType{operation.getInputs(), operation.getOutputs()}
+{
+  // DO NOTHING
+}
+
+} // namespace operation
+} // namespace train
+} // namespace ir
+} // namespace onert