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+/*
+ * Copyright (c) 2020 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_COMPILER_CACHED_DATA_DELETER_H__
+#define __ONERT_COMPILER_CACHED_DATA_DELETER_H__
+
+#include "ir/Index.h"
+#include "ir/OperationVisitor.h"
+#include "ir/OpSequences.h"
+#include "ir/Operands.h"
+#include "util/logging.h"
+
+namespace onert
+{
+namespace compiler
+{
+
+class CachedDataDeleter : public ir::OperationVisitor
+{
+public:
+  CachedDataDeleter(ir::Operands &operands) : _operands(operands)
+  {
+    // DO NOTHING
+  }
+
+  virtual ~CachedDataDeleter() = default;
+
+public:
+  void run()
+  {
+    _operands.iterate(
+        [&](const ir::OperandIndex &ind, const ir::Operand &) { deleteCachedData(ind); });
+  }
+
+  void run(const ir::OpSequence &op_seq)
+  {
+    for (const auto &e : op_seq.operations())
+    {
+      const auto &node = *(e.node);
+      node.accept(*this);
+    }
+  }
+
+  // NOTE: Almost layers that have the big size constants are conv and fc.
+  void visit(const ir::operation::Conv2D &node) override
+  {
+    using ir::operation::Conv2D;
+    const auto ker_index{node.getInputs().at(Conv2D::Input::KERNEL)};
+    const auto bias_index{node.getInputs().at(Conv2D::Input::BIAS)};
+    deleteCachedData(ker_index);
+    deleteCachedData(bias_index);
+  }
+
+  void visit(const ir::operation::DepthwiseConv2D &node) override
+  {
+    using ir::operation::DepthwiseConv2D;
+    const auto ker_index{node.getInputs().at(DepthwiseConv2D::Input::KERNEL)};
+    const auto bias_index{node.getInputs().at(DepthwiseConv2D::Input::BIAS)};
+    deleteCachedData(ker_index);
+    deleteCachedData(bias_index);
+  }
+
+  void visit(const ir::operation::FullyConnected &node) override
+  {
+    using ir::operation::FullyConnected;
+    const auto weight_index{node.getInputs().at(FullyConnected::Input::WEIGHT)};
+    const auto bias_index{node.getInputs().at(FullyConnected::Input::BIAS)};
+    deleteCachedData(weight_index);
+    deleteCachedData(bias_index);
+  }
+
+private:
+  void deleteCachedData(const ir::OperandIndex &ind)
+  {
+    auto &obj = _operands.at(ind);
+    if (obj.isConstant())
+    {
+      assert(obj.data() != nullptr);
+      obj.releaseData();
+    }
+  }
+
+private:
+  ir::Operands &_operands;
+};
+
+} // namespace compiler
+} // namespace onert
+
+#endif // __ONERT_COMPILER_CACHED_DATA_DELETER_H__