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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_IDENTICAL_OBJECT_REDUCTION_H__
#define __ENCO_TRANSFORM_IDENTICAL_OBJECT_REDUCTION_H__
#include "Code.h"
#include "Pass.h"
namespace enco
{
/**
* @brief Reduce identically copied objects as its original object
*
* >>> BEFORE <<<
* %bag_0 = Bag(size: N)
* %bag_1 = Bag(size: N)
*
* %obj_0 = Feature(layout: BHWC) at %bag_0
* %obj_1 = Feature(layout: BHWC) at %bag_1
*
* copy(from: %obj_0, into: %obj_1)
* ...
* Use(%obj_0)
* Use(%obj_1)
* ...
*
* >>> AFTER <<<
* %bag_0 = Bag(size: N)
* %bag_1 = Bag(size: N)
*
* %obj_0 = Feature(layout: BHWC) at %bag_0
* %obj_1 = Feature(layout: BHWC) at %bag_1
*
* copy(from: %obj_0, into: %obj_1)
* ...
* Use(%obj_0)
* Use(%obj_0) <- %obj_1 is replaced
* ...
*/
void reduce_identical_object(enco::Code *code);
struct IdenticalObjectReductionPass final : public Pass
{
PASS_CTOR(IdenticalObjectReductionPass)
{
// DO NOTHING
}
void run(const SessionID &sess) const override { reduce_identical_object(code(sess)); }
};
} // namespace enco
#endif // __ENCO_TRANSFORM_IDENTICAL_OBJECT_REDUCTION_H__
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