41 lines
1.4 KiB
C++
41 lines
1.4 KiB
C++
/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#include "tensorflow/cc/framework/grad_op_registry.h"
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#include "tensorflow/cc/framework/gradients.h"
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#include "tensorflow/cc/ops/manip_ops.h"
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#include "tensorflow/cc/ops/standard_ops.h"
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namespace tensorflow {
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namespace ops {
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namespace {
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Status RollGrad(const Scope& scope, const Operation& op,
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const std::vector<Output>& grad_inputs,
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std::vector<Output>* grad_outputs) {
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auto shift = op.input(1);
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auto axis = op.input(2);
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auto grad_op = Roll(scope, grad_inputs[0], Neg(scope, shift), axis);
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grad_outputs->push_back(grad_op);
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grad_outputs->push_back(NoGradient());
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grad_outputs->push_back(NoGradient());
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return scope.status();
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}
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REGISTER_GRADIENT_OP("Roll", RollGrad);
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} // namespace
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} // namespace ops
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} // namespace tensorflow
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