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/*
* 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 "StopGradientCanonicalizer.h"
#include <moco/IR/TFDialect.h>
#include <moco/Log.h>
namespace
{
bool canonicalize_stopgradient(loco::Graph *graph, moco::TFStopGradient *node)
{
LOGGER(l);
INFO(l) << "TFNodeCanonicalize TFStopGradient begin";
/**
* This will replace shape inferred TFStopGradient node into canonical Forward
*
* Before
* In --- TFStopGradient --- Out(s)
*
* After
* -- TFStopGradient
* /
* In --- Forward --- Out(s)
*/
// Create loco node to replace
auto forward_node = graph->nodes()->create<loco::Forward>();
// update connection
forward_node->input(node->input());
// replace node
replace(node).with(forward_node);
INFO(l) << "TFNodeCanonicalize TFStopGradient done";
return true;
}
} // namespace
namespace moco
{
namespace tf
{
bool StopGradientCanonicalizer::transform(TFStopGradient *node) const
{
return canonicalize_stopgradient(node->graph(), node);
}
} // namespace tf
} // namespace moco
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