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Diffstat (limited to 'compiler/exo/src/Conversion/AvgPool2DConverter.cpp')
-rw-r--r-- | compiler/exo/src/Conversion/AvgPool2DConverter.cpp | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/compiler/exo/src/Conversion/AvgPool2DConverter.cpp b/compiler/exo/src/Conversion/AvgPool2DConverter.cpp new file mode 100644 index 000000000..a95518ac6 --- /dev/null +++ b/compiler/exo/src/Conversion/AvgPool2DConverter.cpp @@ -0,0 +1,79 @@ +/* + * Copyright (c) 2019 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 "AvgPool2DConverter.h" + +#include "Dialect/IR/TFLNodes.h" + +#include "GraphBlock.h" +#include "Check.h" + +#include <loco.h> + +namespace exo +{ +/** + * @brief Converts loco::AvgPool2D to locoex::TFLAveragePool2D + * + * How it works: (note: ten->fea means input: tensor, output: feature) + * + * Before: + * Foo ---- FeatureEncode ---- AvgPool2D ---- FeatureDecode ---- Bar + * ten->ten ten->fea fea->fea fea->ten ten->ten + * + * After: AvgPool2D + * / + * Foo -- FeatureEncode - FeatureDecode - TFLAvgPool2D - FeatureEncode - FeatureDecode -- Bar + * ten->ten ten->fea fea->ten ten->ten ten->fea fea->ten ten->ten + * + * @note This method replaces AvgPool2D with "FeatureDecode -- TFLAvgPool2D -- FeatureEncode". + * Redundant nodes will be removed during transforms. + */ +bool AvgPool2DConverter::convert(loco::AvgPool2D *origin) +{ + auto *graph = origin->graph(); + + auto dec = make_feature_decode<FeatureLayout::NHWC>(origin->ifm()); + auto tfl_average = graph->nodes()->create<locoex::TFLAveragePool2D>(); + { + tfl_average->value(dec); + + // set attributes + tfl_average->stride()->w(origin->stride()->horizontal()); + tfl_average->stride()->h(origin->stride()->vertical()); + + tfl_average->filter()->w(origin->window()->horizontal()); + tfl_average->filter()->h(origin->window()->vertical()); + + auto pad = origin->pad(); + if (pad->bottom() == 0 && pad->top() == 0 && pad->left() == 0 && pad->right() == 0) + tfl_average->padding(locoex::Padding::VALID); + else + // TODO This is necessary, but not sufficient condition. More rigorous check required + tfl_average->padding(locoex::Padding::SAME); + + tfl_average->fusedActivationFunction(locoex::FusedActFunc::NONE); + } + auto enc = make_feature_encode<FeatureLayout::NHWC>(tfl_average); + + // replace canonical node + loco::replace(origin).with(enc); + origin->ifm(nullptr); + + return true; +} + +} // namespace exo |