Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/tensorflow/python/ops/manip_grad.py: 56%

1# Copyright 2015 The TensorFlow Authors. All Rights Reserved. 

2# 

3# Licensed under the Apache License, Version 2.0 (the "License"); 

4# you may not use this file except in compliance with the License. 

5# You may obtain a copy of the License at 

6# 

7# http://www.apache.org/licenses/LICENSE-2.0 

8# 

9# Unless required by applicable law or agreed to in writing, software 

10# distributed under the License is distributed on an "AS IS" BASIS, 

11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

12# See the License for the specific language governing permissions and 

13# limitations under the License. 

14# ============================================================================== 

15"""Gradients for operators defined in manip_ops.py.""" 

16 

17from tensorflow.python.framework import ops 

18from tensorflow.python.ops import manip_ops 

19 

20 

21@ops.RegisterGradient("Roll") 

22def _RollGrad(op, grad): 

23 # The gradient is just the roll reversed 

24 shift = op.inputs[1] 

25 axis = op.inputs[2] 

26 roll_grad = manip_ops.roll(grad, -shift, axis) 

27 return roll_grad, None, None