81 lines
3.2 KiB
C++
81 lines
3.2 KiB
C++
/*******************************************************************************
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* Copyright (c) 2015-2019 Skymind, Inc.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author raver119@gmail.com
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//
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#include <ops/declarable/helpers/shift.h>
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namespace nd4j {
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namespace ops {
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namespace helpers {
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template <typename T>
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void rshift_bits_(LaunchContext* launchContext, NDArray &input, NDArray &output, uint32_t shift) {
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auto lambda = LAMBDA_T(x, shift) {
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return x >> shift;
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};
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input.applyLambda<T>(lambda, output);
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}
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void rshift_bits(LaunchContext* launchContext, NDArray &x, NDArray &z, uint32_t shift) {
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BUILD_SINGLE_SELECTOR(x.dataType(), rshift_bits_, (launchContext, x, z, shift), INTEGER_TYPES);
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}
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template <typename T>
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void shift_bits_(LaunchContext* launchContext, NDArray &input, NDArray &output, uint32_t shift) {
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auto lambda = LAMBDA_T(x, shift) {
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return x << shift;
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};
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input.applyLambda<T>(lambda, output);
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}
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void shift_bits(LaunchContext* launchContext, NDArray &x, NDArray &z, uint32_t shift) {
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BUILD_SINGLE_SELECTOR(x.dataType(), shift_bits_, (launchContext, x, z, shift), INTEGER_TYPES);
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}
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template <typename T>
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void cyclic_rshift_bits_(LaunchContext* launchContext, NDArray &input, NDArray &output, uint32_t shift) {
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auto step = (sizeof(T) * 8) - shift;
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auto lambda = LAMBDA_T(x, shift, step) {
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return x >> shift | x << step;
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};
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input.applyLambda<T>(lambda, output);
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}
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void cyclic_rshift_bits(LaunchContext* launchContext, NDArray &x, NDArray &z, uint32_t shift) {
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BUILD_SINGLE_SELECTOR(x.dataType(), cyclic_rshift_bits_, (launchContext, x, z, shift), INTEGER_TYPES);
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}
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template <typename T>
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void cyclic_shift_bits_(LaunchContext* launchContext, NDArray &input, NDArray &output, uint32_t shift) {
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auto step = (sizeof(T) * 8) - shift;
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auto lambda = LAMBDA_T(x, shift, step) {
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return x << shift | x >> step;
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};
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input.applyLambda<T>(lambda, output);
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}
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void cyclic_shift_bits(LaunchContext* launchContext, NDArray &x, NDArray &z, uint32_t shift) {
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BUILD_SINGLE_SELECTOR(x.dataType(), cyclic_shift_bits_, (launchContext, x, z, shift), INTEGER_TYPES);
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}
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}
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}
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} |