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Diffstat (limited to 'compiler/moco/import/src/Nodes/StopGradient.cpp')
-rw-r--r-- | compiler/moco/import/src/Nodes/StopGradient.cpp | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/compiler/moco/import/src/Nodes/StopGradient.cpp b/compiler/moco/import/src/Nodes/StopGradient.cpp new file mode 100644 index 000000000..9caec6943 --- /dev/null +++ b/compiler/moco/import/src/Nodes/StopGradient.cpp @@ -0,0 +1,87 @@ +/* + * 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 "moco/Import/Nodes/StopGradient.h" + +#include <moco/IR/Nodes/TFStopGradient.h> + +#include <loco.h> +#include <plier/tf/Convert.h> +#include <stdex/Memory.h> + +namespace +{ + +using namespace moco; + +/** + * @brief GraphUpdate for TF StopGradient node + */ +class TFStopGradientGraphUpdate final : public GraphUpdate +{ +public: + TFStopGradientGraphUpdate(TFStopGradient *node, TensorName &&name) : _node(node), _name(name) {} + + void input(const SymbolTable *) const override; + +private: + TFStopGradient *_node; + TensorName _name; +}; + +void TFStopGradientGraphUpdate::input(const SymbolTable *table) const +{ + loco::Node *target = table->node(_name); + _node->input(target); +} + +} // namespace + +namespace moco +{ + +bool StopGradientGraphBuilder::validate(const tensorflow::NodeDef &node) const +{ + if (node.input_size() != 1) + return false; + + return plier::tf::has_attrs(node, {"T"}); +} + +void StopGradientGraphBuilder::build(const tensorflow::NodeDef &node, + GraphBuilderContext *context) const +{ + assert(context != nullptr); + + loco::Graph *graph = context->graph(); + SymbolTable *tensor_names = context->tensor_names(); + UpdateQueue *updates = context->updates(); + + // creating TF dialect StopGradient node + auto tf_stopgradient = graph->nodes()->create<TFStopGradient>(); + tf_stopgradient->name(node.name()); + + // register string-name to node + TensorName output_name(node.name(), 0); + tensor_names->enroll(output_name, tf_stopgradient); + + // Queue node input update + auto tf_stopgradient_update = + stdex::make_unique<TFStopGradientGraphUpdate>(tf_stopgradient, TensorName(node.input(0))); + updates->enroll(std::move(tf_stopgradient_update)); +} + +} // namespace moco |