78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
/*******************************************************************************
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* Copyright (c) 2015-2018 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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// @author Yurii Shyrma (iuriish@yahoo.com)
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//
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#include <op_boilerplate.h>
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#if NOT_EXCLUDED(OP_transpose)
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#include <ops/declarable/CustomOperations.h>
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#include <helpers/ShapeUtils.h>
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namespace nd4j {
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namespace ops {
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//////////////////////////////////////////////////////////////////////////
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CUSTOM_OP_IMPL(transpose, 1, 1, false, 0, 0) {
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auto x = INPUT_VARIABLE(0);
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auto z = OUTPUT_VARIABLE(0);
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//Special case: empty.reshape(<other empty shape>) -> return empty
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if (x->isEmpty()) {
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REQUIRE_TRUE(z->isEmpty(), 0, "TRANSPOSE OP: when input is empty, output must also be empty");
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return Status::OK(); //No op
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}
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if (block.width() == 1 && block.getIArguments()->size() == 0) {
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z->assign(x->transpose());
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return Status::OK();
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}
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std::vector<int> permutationVector = block.width() > 1 ? INPUT_VARIABLE(1)->asVectorT<int>() : *block.getIArguments();
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z->assign(x->permute(permutationVector));
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return Status::OK();
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}
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DECLARE_TYPES(transpose) {
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getOpDescriptor()
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->setAllowedInputTypes(nd4j::DataType::ANY)
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->setSameMode(true);
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}
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DECLARE_SHAPE_FN(transpose) {
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auto x = INPUT_VARIABLE(0);
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if (block.width() == 1 && block.getIArguments()->size() == 0)
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return SHAPELIST(ShapeUtils::evalTranspShapeInfo(*x, block.workspace(), true));
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std::vector<int> permutationVector = block.width() > 1 ? INPUT_VARIABLE(1)->asVectorT<int>() : *block.getIArguments();
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auto outputShapeInfo = ShapeUtils::evalPermShapeInfo(permutationVector.data(), x->rankOf(), *x, block.workspace(), true);
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return SHAPELIST(outputShapeInfo);
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}
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}
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}
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#endif |