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+/*
+ * 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 __ENCO_TRANSFORM_DEAD_OBJECT_ELIMINATION_H__
+#define __ENCO_TRANSFORM_DEAD_OBJECT_ELIMINATION_H__
+
+#include "Code.h"
+#include "Pass.h"
+
+namespace enco
+{
+
+/**
+ * @brief Eliminate dead objects in IR
+ *
+ * An object whose backing bag is unused is referred to as a dead object.
+ *
+ * Dead Object Elimination (DOE) eliminates such dead objects along with their producer.
+ */
+void eliminate_dead_object(enco::Code *code);
+
+struct DeadObjectEliminationPass final : public Pass
+{
+ PASS_CTOR(DeadObjectEliminationPass)
+ {
+ // DO NOTHING
+ }
+
+ void run(const SessionID &sess) const override { eliminate_dead_object(code(sess)); }
+};
+
+} // namespace enco
+
+#endif // __ENCO_TRANSFORM_DEAD_OBJECT_ELIMINATION_H__