diff options
Diffstat (limited to 'compiler/enco/core/src/Transforms/DuplicatedObjectReduction.h')
| -rw-r--r-- | compiler/enco/core/src/Transforms/DuplicatedObjectReduction.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/compiler/enco/core/src/Transforms/DuplicatedObjectReduction.h b/compiler/enco/core/src/Transforms/DuplicatedObjectReduction.h new file mode 100644 index 000000000..3aa20058e --- /dev/null +++ b/compiler/enco/core/src/Transforms/DuplicatedObjectReduction.h @@ -0,0 +1,73 @@ +/* + * 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_DUPLICATED_OBJECT_REDUCTION_H__ +#define __ENCO_TRANSFORM_DUPLICATED_OBJECT_REDUCTION_H__ + +#include "Code.h" +#include "Pass.h" + +namespace enco +{ + +/** + * @brief Reduce duplicated feature objects as its dominating feature object + * + * >>> BEFORE <<< + * %obj_0 = Feature(layout: ???) at ... + * %obj_1 = Feature(layout: BHWC) at ... + * %obj_2 = Feature(layout: BHWC) at ... + * + * copy(from: %obj_0, into: %obj_1) + * copy(from: %obj_0, into: %obj_2) + * + * ... + * Use(%obj_1) + * Use(%obj_2) + * ... + * + * >>> AFTER <<< + * %obj_0 = Feature(layout: ???) at ... + * %obj_1 = Feature(layout: BHWC) at ... + * %obj_2 = Feature(layout: BHWC) at ... + * + * copy(from: %obj_0, into: %obj_1) + * copy(from: %obj_0, into: %obj_2) + * + * ... + * Use(%obj_1) + * Use(%obj_1) <-- CHANGED + * ... + * + * NOTE Given a set of feature objects, a feature object referred to as a dominating + * feature object if its producer proceeds the producer of every feature object + * in the given set + */ +void reduce_duplicated_object(enco::Code *code); + +struct DuplicatedObjectReductionPass final : public Pass +{ + PASS_CTOR(DuplicatedObjectReductionPass) + { + // DO NOTHING + } + + void run(const SessionID &sess) const override { reduce_duplicated_object(code(sess)); } +}; + +} // namespace enco + +#endif // __ENCO_TRANSFORM_DUPLICATED_OBJECT_REDUCTION_H__ |