/**
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* @license
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* Copyright 2020 Google LLC. 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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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*/
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import { Conv2DBackpropInput } from '../kernel_names';
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import { conv2d } from '../ops/conv2d';
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import { conv2DBackpropFilter } from '../ops/conv2d_backprop_filter';
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export const conv2DBackpropInputGradConfig = {
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kernelName: Conv2DBackpropInput,
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inputsToSave: ['dy', 'filter'],
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gradFunc: (ddx, saved, attrs) => {
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const [dy, filter] = saved;
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const { strides, pad, dataFormat, dimRoundingMode } = attrs;
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return {
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dy: () => conv2d(ddx, filter, strides, pad, dataFormat, 1 /* dilations */, dimRoundingMode),
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filter: () => conv2DBackpropFilter(ddx, dy, filter.shape, strides, pad, dataFormat, dimRoundingMode)
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};
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}
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};
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