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2025-06-12 7b72ac13a83764a662159d4a49b7fffb90476ecb

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/**
 * @license
 * Copyright 2020 Google LLC. 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.
 * =============================================================================
 */
import { BatchMatMul } from '../kernel_names';
import { matMul } from '../ops/mat_mul';
export const batchMatMulGradConfig = {
    kernelName: BatchMatMul,
    inputsToSave: ['a', 'b'],
    gradFunc: (dy, saved, attrs) => {
        const [a, b] = saved;
        const { transposeA, transposeB } = attrs;
        if (!transposeA && !transposeB) {
            return {
                a: () => matMul(dy, b, false, true),
                b: () => matMul(a, dy, true, false)
            };
        }
        else if (!transposeA && transposeB) {
            return {
                a: () => matMul(dy, b, false, false),
                b: () => matMul(dy, a, true, false)
            };
        }
        else if (transposeA && !transposeB) {
            return {
                a: () => matMul(b, dy, false, true),
                b: () => matMul(a, dy, false, false)
            };
        }
        else {
            return {
                a: () => matMul(b, dy, true, true),
                b: () => matMul(dy, a, true, true)
            };
        }
    }
};
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