54 lines
2.1 KiB
Plaintext
54 lines
2.1 KiB
Plaintext
/*******************************************************************************
|
|
* Copyright (c) 2015-2019 Skymind, Inc.
|
|
*
|
|
* This program and the accompanying materials are made available under the
|
|
* terms of the Apache License, Version 2.0 which is available at
|
|
* https://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.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
******************************************************************************/
|
|
|
|
//
|
|
// @author raver119@gmail.com
|
|
//
|
|
|
|
#include <ops/declarable/helpers/shift.h>
|
|
|
|
namespace nd4j {
|
|
namespace ops {
|
|
namespace helpers {
|
|
template <typename T>
|
|
void shift_bits_(LaunchContext* launchContext, NDArray &input, NDArray &output, uint32_t shift) {
|
|
auto lambda = LAMBDA_T(x, shift) {
|
|
return x << shift;
|
|
};
|
|
|
|
input.applyLambda(lambda, &output);
|
|
}
|
|
|
|
void shift_bits(LaunchContext* launchContext, NDArray &x, NDArray &z, uint32_t shift) {
|
|
BUILD_SINGLE_SELECTOR(x.dataType(), shift_bits_, (launchContext, x, z, shift), INTEGER_TYPES);
|
|
}
|
|
|
|
template <typename T>
|
|
void cyclic_shift_bits_(LaunchContext* launchContext, NDArray &input, NDArray &output, uint32_t shift) {
|
|
auto step = (sizeof(T) * 8) - shift;
|
|
auto lambda = LAMBDA_T(x, shift, step) {
|
|
return x << shift | x >> step;
|
|
};
|
|
|
|
input.applyLambda(lambda, &output);
|
|
}
|
|
|
|
void cyclic_shift_bits(LaunchContext* launchContext, NDArray &x, NDArray &z, uint32_t shift) {
|
|
BUILD_SINGLE_SELECTOR(x.dataType(), cyclic_shift_bits_, (launchContext, x, z, shift), INTEGER_TYPES);
|
|
}
|
|
}
|
|
}
|
|
} |