wehub-resource-sync
134 lines
4.1 KiB
C++
134 lines
4.1 KiB
C++
/* ******************************************************************************
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*
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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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* See the NOTICE file distributed with this work for additional
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* information regarding copyright ownership.
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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 <system/op_boilerplate.h>
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#if NOT_EXCLUDED(OP_transpose)
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#include <helpers/ShapeUtils.h>
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#include <ops/declarable/CustomOperations.h>
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namespace sd {
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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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NDArray* castedPermute = nullptr;
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std::vector<LongType> permutationVector;
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if (block.width() > 1) {
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castedPermute = INPUT_VARIABLE(1)->cast(INT64);
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permutationVector = castedPermute->asVectorT<LongType>();
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} else {
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permutationVector = *block.getIArguments();
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}
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if (permutationVector.size() == 0) {
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NDArray *t = x->transpose();
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z->assign(t);
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// FIXED: transpose() returns a view - only delete if not a view
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if (t != nullptr && !t->isView()) {
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delete t;
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}
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if (castedPermute != nullptr) delete castedPermute;
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return Status::OK;
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}
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bool isPermuteNecessary = false;
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int rank = permutationVector.size();
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//handles empty permute vector case as well as case where array rank and permute vector rank
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//are different
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for (LongType i = 0; i < rank; ++i) {
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if (permutationVector[i] != i) {
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isPermuteNecessary = true;
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break;
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}
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}
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if(!isPermuteNecessary) {
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z->assign(x);
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return Status::OK;
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}
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z->assign(x->permute(permutationVector, false, false));
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if (castedPermute != nullptr) delete castedPermute;
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return Status::OK;
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}
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DECLARE_TYPES(transpose) { getOpDescriptor()->setAllowedInputTypes(ANY)->setSameMode(true); }
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DECLARE_SHAPE_FN(transpose) {
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auto x = INPUT_VARIABLE(0);
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const LongType rank = x->rankOf();
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if(rank < 1)
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return SHAPELIST(ConstantShapeHelper::getInstance().scalarShapeInfo(x->dataType()));
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std::vector<LongType> permutationVector = block.width() > 1 ? INPUT_VARIABLE(1)->cast(INT64)->asVectorT<LongType>() : *block.getIArguments();
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if (permutationVector.size() == 0) {
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auto temp = ShapeUtils::evalTransposeShapeInfo(*x, nullptr, true);
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auto ret = ConstantShapeHelper::getInstance().createFromExisting(temp);
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RELEASE(temp, nullptr);
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return SHAPELIST(ret);
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}
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bool isPermuteNecessary = false;
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if(permutationVector.size() == static_cast<size_t>(rank))
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for (LongType i = 0; i < rank; ++i) {
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if (permutationVector[i] != i) {
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isPermuteNecessary = true;
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break;
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}
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}
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if(!isPermuteNecessary) {
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//note: do not deallocate this buffer. they are kept around.
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auto permEvalShapeInfo = ConstantShapeHelper::getInstance().createFromExisting(inputShape->at(0));
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return SHAPELIST(permEvalShapeInfo);
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}
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//note: do not deallocate this buffer. they are kept around.
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auto permEvalShapeInfo = ShapeUtils::evalPermShapeInfo(permutationVector.data(), x->rankOf(), x, nullptr, true);
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if(x->isEmpty()) {
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ArrayOptions::setPropertyBit(permEvalShapeInfo, ARRAY_EMPTY);
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}
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auto ret = CONSTANT(permEvalShapeInfo);
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return SHAPELIST(ret);
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}
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} // namespace ops
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} // namespace sd
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#endif
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