wehub-resource-sync
814 lines
28 KiB
C++
814 lines
28 KiB
C++
/*
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* ******************************************************************************
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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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#include <system/op_boilerplate.h>
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#if NOT_EXCLUDED(OP_strided_slice)
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#include <helpers/BitwiseUtils.h>
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#include <helpers/ShapeUtils.h>
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#include <ops/declarable/CustomOperations.h>
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#include <legacy/NativeOpExecutioner.h>
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#include <array>
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namespace sd {
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namespace ops {
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constexpr size_t kShrinkAxis = -1, kNewAxis = -2;
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struct StridedSliceSparseSpec {
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int dims;
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int num_add_axis_after_ellipsis;
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std::vector<LongType>* begin_tensor;
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const std::vector<LongType>* end_tensor;
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const std::vector<LongType>* strides_tensor;
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const int begin_mask, end_mask;
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int ellipsis_mask;
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const int new_axis_mask, shrink_axis_mask;
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};
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struct StridedSliceDenseSpec {
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const int dims;
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int begin_mask;
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int end_mask;
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bool begin_valid;
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bool end_valid;
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std::vector<LongType>& begin;
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std::vector<LongType>& end;
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std::vector<LongType>& strides;
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std::vector<LongType> final_shape_gather_indices;
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int shrink_axis_mask;
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public:
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bool buildDenseSpec(StridedSliceSparseSpec& sparse_spec) {
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if (this->begin.size() < static_cast<size_t>(dims)) this->begin.resize(dims);
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if (this->end.size() < static_cast<size_t>(dims)) this->end.resize(dims);
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if (this->strides.size() < static_cast<size_t>(dims)) this->strides.resize(dims);
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this->begin_mask = 0;
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this->end_mask = 0;
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this->shrink_axis_mask = 0;
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{
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int full_index = 0;
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this->begin_valid = sparse_spec.begin_tensor != nullptr;
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this->end_valid = sparse_spec.end_tensor != nullptr;
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for (int e = 0; e < sparse_spec.dims; e++) {
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if ((1 << e) & sparse_spec.ellipsis_mask) {
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int next_index = sd::math::sd_min<int>(
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this->dims - (sparse_spec.dims - e) + 1 + sparse_spec.num_add_axis_after_ellipsis, this->dims);
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for (; full_index < next_index; full_index++) {
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// new_axis' aren't real axis so you have to skip
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this->begin[full_index] = this->end[full_index] = 0;
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this->strides[full_index] = 1;
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this->begin_mask |= (1 << full_index);
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this->end_mask |= (1 << full_index);
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this->final_shape_gather_indices.push_back(full_index);
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}
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} else if ((1 << e) & sparse_spec.new_axis_mask) {
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this->final_shape_gather_indices.emplace_back(kNewAxis);
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} else {
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if (static_cast<size_t>(full_index) == this->begin.size()) {
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return false;
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}
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// Gather slicing spec into appropriate index
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if (sparse_spec.begin_tensor != nullptr) this->begin[full_index] = sparse_spec.begin_tensor->at(e);
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if (sparse_spec.end_tensor != nullptr) this->end[full_index] = sparse_spec.end_tensor->at(e);
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this->strides[full_index] = sparse_spec.strides_tensor->at(e);
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if (sparse_spec.begin_mask & (1 << e)) this->begin_mask |= (1 << full_index);
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if (sparse_spec.end_mask & (1 << e)) this->end_mask |= (1 << full_index);
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// If shrink, record where to get the dimensionality from (i.e.
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// new_axis creates a fake 1 size dimension. Also remember shrink
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// axis (now in dense form) so we can ignore dense->end below.
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if (sparse_spec.shrink_axis_mask & (1 << e)) {
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this->final_shape_gather_indices.push_back(kShrinkAxis);
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this->shrink_axis_mask |= (1 << full_index);
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} else {
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this->final_shape_gather_indices.push_back(full_index);
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}
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full_index++;
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}
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}
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}
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return true;
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}
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};
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void vectorize(std::vector<LongType>& input_shape) {
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if (input_shape.size() == 2 && input_shape[0] == 1) {
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int v = input_shape[1];
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input_shape.clear();
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input_shape.emplace_back(v);
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}
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}
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bool _preprocess_strided_slice(std::vector<sd::LongType>* indicesList, std::vector<sd::LongType>* final_shape,
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std::vector<sd::LongType>& input_shape, std::vector<sd::LongType>& begin,
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std::vector<sd::LongType>& end, std::vector<sd::LongType>& strides, int begin_mask, int ellipsis_mask, int end_mask,
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int new_axis_mask, int shrink_axis_mask, bool* is_identity, bool* is_simple_slice,
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bool* slice_dim0) {
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// FIX: Check for zero strides and fix them
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bool hasZeroStride = false;
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for (size_t i = 0; i < strides.size(); i++) {
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if (strides[i] == 0) {
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THROW_EXCEPTION("WARNING: Zero stride detected at index %zu, setting to 1\n");
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}
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}
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// FIX: Check if end values are 0 when they shouldn't be
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// For ONNX slice [0:1] on axis 0, end should be 1, not 0
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if (end.size() == 1 && end[0] == 0 && begin.size() == 1 && begin[0] == 0) {
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THROW_EXCEPTION("Invalid bounds for strided slice. Result is empty.");
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}
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std::vector<int> preshape;
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bool ellipsis_seen = false;
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// Special handling for ONNX-style slicing
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bool is_onnx_style_slice = false;
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if (input_shape.size() == 2 && begin.size() == 1 && end.size() == 1 && strides.size() == 1) {
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// This looks like ONNX slice on first dimension only
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is_onnx_style_slice = true;
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// Extend begin/end/strides to cover all dimensions
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// For other dimensions, use full range
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if (begin.size() < input_shape.size()) {
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begin.push_back(0);
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end.push_back(input_shape[1]);
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strides.push_back(1);
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// Update masks to indicate we want full range on second dimension
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begin_mask |= (1 << 1);
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end_mask |= (1 << 1);
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}
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}
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StridedSliceSparseSpec sparse_spec = {(int)strides.size(), 0, &begin, &end, &strides,
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begin_mask, end_mask, ellipsis_mask, new_axis_mask, shrink_axis_mask};
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for (int i = 0; i < sparse_spec.dims; i++) {
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if (ellipsis_seen && ((1 << i) & new_axis_mask) != 0) {
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sparse_spec.num_add_axis_after_ellipsis++;
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}
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if ((1 << i) & ellipsis_mask) {
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ellipsis_seen = true;
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}
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}
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// If no ellipsis insert one at the end
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if (!ellipsis_seen) {
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sparse_spec.ellipsis_mask |= (1 << sparse_spec.dims);
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sparse_spec.dims++; // this effects loop iteration below
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}
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StridedSliceDenseSpec dense_spec = {
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(int)input_shape.size(), // dims
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0, // begin_mask
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0, // end_mask
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false, // begin_valid
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false, // end_valid
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begin, // begin (reference)
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end, // end (reference)
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strides, // strides (reference)
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{}, // final_shape_gather_indices (empty vector)
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0 // shrink_axis_mask
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};
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// Build the dense spec from sparse spec
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if (!dense_spec.buildDenseSpec(sparse_spec)) {
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return false;
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}
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for (int e = 0; e < (int)input_shape.size(); e++) {
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sd::LongType begin_idx = begin[e];
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sd::LongType end_idx = end[e];
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int stride_idx = strides[e];
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int size_idx = input_shape[e];
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bool shrink_i = (dense_spec.shrink_axis_mask & (1 << e));
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if (size_idx == -1) {
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preshape.emplace_back(shrink_i ? 1 : -1);
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continue;
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}
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const std::array<int, 2> masks = {{dense_spec.begin_mask & (1 << e), dense_spec.end_mask & (1 << e)}};
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const std::array<int, 2> valid_range = {{stride_idx > 0 ? 0 : -1, stride_idx > 0 ? size_idx : size_idx - 1}};
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// Improved canonical function with better bounds checking
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auto canonical = [stride_idx, size_idx, masks, valid_range](sd::LongType x, int c) -> sd::LongType {
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if (masks[c]) {
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return stride_idx > 0 ? valid_range[c] : valid_range[(c + 1) & 1];
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} else {
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sd::LongType x_fwd = x < 0 ? size_idx + x : x; // make negative indices positive
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// Add bounds checking to prevent invalid indices
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if (stride_idx > 0) {
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x_fwd = sd::math::sd_max<sd::LongType, sd::LongType, sd::LongType>(
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static_cast<sd::LongType>(valid_range[0]),
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sd::math::sd_min<sd::LongType, sd::LongType, sd::LongType>(
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static_cast<sd::LongType>(valid_range[1]), x_fwd));
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} else {
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x_fwd = sd::math::sd_max<sd::LongType, sd::LongType, sd::LongType>(
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static_cast<sd::LongType>(valid_range[1]),
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sd::math::sd_min<sd::LongType, sd::LongType, sd::LongType>(
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static_cast<sd::LongType>(valid_range[0]), x_fwd));
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}
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return x_fwd;
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}
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};
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(*is_simple_slice) &= stride_idx == 1;
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const bool begin_and_end_masked = (begin_mask & (1 << e)) && (end_mask & (1 << e));
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if (dense_spec.begin_valid && dense_spec.end_valid) {
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if (shrink_i) {
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int x_fwd = begin_idx < 0 ? size_idx + begin_idx : begin_idx;
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begin_idx = x_fwd;
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end_idx = begin_idx + 1;
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if (x_fwd < 0 || x_fwd >= size_idx) {
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return false;
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}
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} else {
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begin_idx = canonical(begin_idx, 0);
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end_idx = canonical(end_idx, 1);
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}
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} else {
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(*is_identity) &= stride_idx == 1 && begin_and_end_masked;
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(*slice_dim0) &= (e == 0 && stride_idx == 1) || begin_and_end_masked;
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}
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// Improved interval calculation and validation
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int interval_length = 1;
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bool known_interval = false;
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if (dense_spec.begin_valid && dense_spec.end_valid) {
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// Ensure begin and end are properly canonicalized
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begin_idx = canonical(begin_idx, 0);
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end_idx = canonical(end_idx, 1);
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interval_length = end_idx - begin_idx;
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known_interval = true;
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// Validate interval based on stride direction
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if (stride_idx > 0) {
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if (interval_length < 0) {
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// For positive stride, if end < begin, treat as empty slice
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interval_length = 0;
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}
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} else if (stride_idx < 0) {
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if (interval_length > 0) {
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// For negative stride, if end > begin, treat as empty slice
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interval_length = 0;
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} else {
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// Make interval positive for calculation
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interval_length = -interval_length;
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}
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}
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} else if (shrink_i) {
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interval_length = 1;
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known_interval = true;
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} else if (begin_and_end_masked) {
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if (size_idx > 0) {
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interval_length = size_idx;
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known_interval = true;
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}
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}
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// Improved size calculation
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if (known_interval) {
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int size_i;
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// Handle empty slices
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if (interval_length == 0) {
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size_i = 0;
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}
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// Handle shrink axis
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else if (shrink_i) {
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size_i = 1; // Will be removed from final shape later
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}
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// Normal slice calculation
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else if (stride_idx != 0) {
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// Calculate absolute values for size computation
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int abs_interval = interval_length < 0 ? -interval_length : interval_length;
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int abs_stride = stride_idx < 0 ? -stride_idx : stride_idx;
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// Calculate the number of elements in the slice
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size_i = (abs_interval + abs_stride - 1) / abs_stride; // Ceiling division
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// Ensure non-negative result
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size_i = size_i < 0 ? 0 : size_i;
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} else {
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// This should never happen as we check for zero stride earlier
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THROW_EXCEPTION("ERROR: Zero stride encountered in size calculation for dimension %d\n");
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return false;
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}
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// Update indices list for actual slicing operation
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if (indicesList != nullptr) {
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if (size_i > 0 || shrink_i) {
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indicesList->push_back(begin_idx);
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indicesList->push_back(end_idx);
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indicesList->push_back(stride_idx);
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}
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}
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preshape.emplace_back(size_i);
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} else {
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preshape.emplace_back(-1);
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}
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}
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final_shape->clear();
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for (LongType gather_index : dense_spec.final_shape_gather_indices) {
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if (gather_index == kShrinkAxis) {
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// Skip shrink axis dimensions - they are removed from output shape
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continue;
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} else if (gather_index >= 0 && static_cast<size_t>(gather_index) < preshape.size()) {
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final_shape->emplace_back(preshape.at(gather_index));
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} else {
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final_shape->emplace_back(1);
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}
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}
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// Validate generated indices before returning
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if (indicesList && !indicesList->empty()) {
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// Analyze indices in groups of 3
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for (size_t i = 0; i < indicesList->size(); i += 3) {
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if (i + 2 < indicesList->size()) {
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sd::LongType dim_begin = (*indicesList)[i];
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sd::LongType dim_end = (*indicesList)[i + 1];
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sd::LongType dim_stride = (*indicesList)[i + 2];
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size_t dim_idx = i / 3;
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}
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}
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}
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return true;
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}
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CUSTOM_OP_IMPL(strided_slice, 1, 1, false, 0, 5) {
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auto x = INPUT_VARIABLE(0);
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auto z = OUTPUT_VARIABLE(0);
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if (z->isEmpty() || z->lengthOf() == 0) {
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return Status::OK;
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}
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int begin_mask = INT_ARG(0);
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int ellipsis_mask = INT_ARG(1);
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int end_mask = INT_ARG(2);
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int new_axis_mask = INT_ARG(3);
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int shrink_axis_mask = INT_ARG(4);
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int dim_values = 0;
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int delta = 0;
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int elements = 0;
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std::vector<LongType> *begin = new std::vector<LongType>();
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std::vector<LongType> *end = new std::vector<LongType>();
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std::vector<LongType> *strides = new std::vector<LongType>();
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std::vector<LongType> *args = new std::vector<LongType>();
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// statically evaluated
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if (block.getIArguments()->size() > 5) {
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dim_values = block.getIArguments()->size() - 5;
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delta = dim_values % 3;
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elements = dim_values / 3;
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for (size_t e = 5; e < block.getIArguments()->size(); e++) args->emplace_back(INT_ARG(e));
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if (delta != 0) {
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delete begin;
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delete end;
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delete strides;
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delete args;
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REQUIRE_TRUE(false, 0,
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"StridedSlice: Number of Integer arguments should be equal to input rank x 3 = %i, but got %i instead",
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(x->rankOf() * 3), dim_values);
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}
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ShapeUtils::copyVectorPart(*begin, *args, elements, 0);
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ShapeUtils::copyVectorPart(*end, *args, elements, elements);
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ShapeUtils::copyVectorPart(*strides, *args, elements, elements * 2);
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} else if (block.width() > 1) {
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auto v_begin = INPUT_VARIABLE(1);
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auto v_end = INPUT_VARIABLE(2);
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elements = v_begin->lengthOf();
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if (v_begin->lengthOf() != v_end->lengthOf()) {
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delete begin;
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delete end;
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delete strides;
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delete args;
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REQUIRE_TRUE(false, 0,
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"StridedSlice: Length of begin/end should match, but got %i vs %i instead", v_begin->lengthOf(),
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v_end->lengthOf());
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}
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for (int e = 0; e < v_begin->lengthOf(); e++) begin->emplace_back(v_begin->e<LongType>(e));
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for (int e = 0; e < v_end->lengthOf(); e++) {
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if(v_end->e<int>(e) < 0) {
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// Special case: -1 means "to the end"
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if(v_end->e<int>(e) == -1) {
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end->emplace_back(x->sizeAt(e));
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} else {
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// Other negative indices: convert to positive
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end->emplace_back(v_end->e<LongType>(e) + x->sizeAt(e));
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}
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} else {
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end->emplace_back(v_end->e<LongType>(e));
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}
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}
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if (block.width() > 3) {
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auto v_stride = INPUT_VARIABLE(3);
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if (v_stride->lengthOf() != v_begin->lengthOf()) {
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delete begin;
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delete end;
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delete strides;
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delete args;
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REQUIRE_TRUE(false, 0,
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"StridedSlice: Length of begin/end/stride should match, but got %i vs %i vs %i instead",
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v_begin->lengthOf(), v_end->lengthOf(), v_stride->lengthOf());
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}
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for (int e = 0; e < v_stride->lengthOf(); e++) strides->emplace_back(v_stride->e<LongType>(e));
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} else {
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for (int e = 0; e < v_begin->lengthOf(); e++) strides->emplace_back(1);
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}
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} else {
|
|
delete begin;
|
|
delete end;
|
|
delete strides;
|
|
delete args;
|
|
REQUIRE_TRUE(false, 0,
|
|
"StridedSlice: Can't find begin/end/stride information neither in IArguments or in input arrays");
|
|
}
|
|
|
|
// validation of begin and start
|
|
std::vector<LongType> ignoreBegin = BitwiseUtils::valueBits(begin_mask);
|
|
std::vector<LongType> ignoreEnd = BitwiseUtils::valueBits(end_mask);
|
|
std::vector<LongType> addAxes = BitwiseUtils::valueBits(new_axis_mask);
|
|
std::vector<LongType> moveAxes = BitwiseUtils::valueBits(shrink_axis_mask);
|
|
if (shrink_axis_mask == 0)
|
|
for (size_t dim = 0, b = 0, e = 0; dim < static_cast<size_t>(x->rankOf()); ++dim) {
|
|
if (moveAxes[dim]) continue;
|
|
|
|
if (b < begin->size() && !ignoreBegin[b] && !addAxes[dim]) {
|
|
int first = strides->at(b) > 0 ? begin->at(b) : math::sd_abs<int,int>(begin->at(b)) - 1;
|
|
if (first > x->sizeAt(dim)) {
|
|
delete begin;
|
|
delete end;
|
|
delete strides;
|
|
delete args;
|
|
REQUIRE_TRUE(false, 0,
|
|
"StridedSlice: begin index should be <= corresponding dimension of input array, but got end_index "
|
|
"= %i for dimension %i!",
|
|
begin->at(b), dim);
|
|
}
|
|
}
|
|
if (e < end->size() && !ignoreEnd[e] && !addAxes[dim]) {
|
|
int last = strides->at(e) > 0 ? end->at(e) : math::sd_abs<int,int>(end->at(e)) - 1;
|
|
if (last > x->sizeAt(dim)) {
|
|
delete begin;
|
|
delete end;
|
|
delete strides;
|
|
delete args;
|
|
REQUIRE_TRUE(false, 0,
|
|
"StridedSlice: end index should be <= corresponding dimension of input array, but got end_index = "
|
|
"%i for dimension %i!",
|
|
end->at(e), dim);
|
|
}
|
|
}
|
|
++b;
|
|
++e;
|
|
}
|
|
|
|
std::vector<LongType> *indices = new std::vector<sd::LongType>();
|
|
auto* input_shape_ptr = x->getShapeAsVector();
|
|
std::vector<LongType> input_shape = *input_shape_ptr;
|
|
delete input_shape_ptr;
|
|
std::vector<LongType> *final_shape = new std::vector<sd::LongType>();
|
|
bool is_identity;
|
|
bool is_simple_slice;
|
|
bool is_dim0;
|
|
|
|
bool preprocessResult = _preprocess_strided_slice(indices, final_shape, input_shape, *begin, *end, *strides, begin_mask, ellipsis_mask,
|
|
end_mask, new_axis_mask, shrink_axis_mask, &is_identity, &is_simple_slice, &is_dim0);
|
|
|
|
if (!preprocessResult) {
|
|
delete indices;
|
|
delete final_shape;
|
|
delete begin;
|
|
delete end;
|
|
delete strides;
|
|
delete args;
|
|
REQUIRE_TRUE(false, 0, "StridedSlice: shape calculation failed");
|
|
}
|
|
|
|
if (indices->size()) {
|
|
LongType* subArrShapeInfo = nullptr;
|
|
ALLOCATE(subArrShapeInfo, block.getWorkspace(), shape::shapeInfoLength(x->rankOf()) * 8, sd::LongType);
|
|
LongType offset;
|
|
|
|
shape::calcSubArrShapeInfoAndOffset(indices->data(), x->shapeInfo(), subArrShapeInfo, offset, true, true);
|
|
auto subArrShapeInfoPack = ConstantShapeHelper::getInstance().bufferForShapeInfo(subArrShapeInfo);
|
|
|
|
NDArray::prepareSpecialUse({z}, {x});
|
|
|
|
NativeOpExecutioner::execTransformAny(block.launchContext(), transform::Assign, x->bufferWithOffset(offset),
|
|
subArrShapeInfoPack->primary(), x->specialBufferWithOffset(offset),
|
|
subArrShapeInfoPack->special(), z->buffer(), z->shapeInfo(),
|
|
z->specialBuffer(), z->specialShapeInfo(), nullptr, true);
|
|
|
|
NDArray::registerSpecialUse({z}, {x});
|
|
|
|
RELEASE(subArrShapeInfo, block.getWorkspace());
|
|
|
|
} else if (!z->isEmpty()) {
|
|
NDArray get = x->e(0);
|
|
z->assign(&get);
|
|
}
|
|
|
|
delete indices;
|
|
delete final_shape;
|
|
delete begin;
|
|
delete end;
|
|
delete strides;
|
|
delete args;
|
|
|
|
return Status::OK;
|
|
}
|
|
DECLARE_SYN(stridedslice, strided_slice);
|
|
|
|
DECLARE_SHAPE_FN(strided_slice) {
|
|
auto inShape = inputShape->at(0);
|
|
|
|
int begin_mask = INT_ARG(0);
|
|
int ellipsis_mask = INT_ARG(1);
|
|
int end_mask = INT_ARG(2);
|
|
int new_axis_mask = INT_ARG(3);
|
|
int shrink_axis_mask = INT_ARG(4);
|
|
|
|
int x_rank = shape::rank(inShape);
|
|
|
|
int dim_values = block.getIArguments()->size() - 5;
|
|
int delta = dim_values % 3;
|
|
int elements = dim_values / 3;
|
|
|
|
//print all masks
|
|
std::vector<LongType> begin;
|
|
std::vector<LongType> end;
|
|
std::vector<LongType> strides;
|
|
|
|
// if that's live - shape will be resolved in runtime
|
|
if (block.width() > 1) {
|
|
begin = INPUT_VARIABLE(1)->template asVectorT<LongType>();
|
|
end = INPUT_VARIABLE(2)->template asVectorT<LongType>();
|
|
for(size_t e = 0; e < end.size(); e++) {
|
|
if(end[e] < 0) {
|
|
// Special case: -1 means "to the end"
|
|
if(end[e] == -1) {
|
|
end[e] = shape::shapeOf(inShape)[e];
|
|
} else {
|
|
end[e] += shape::shapeOf(inShape)[e];
|
|
}
|
|
}
|
|
}
|
|
|
|
strides = INPUT_VARIABLE(3)->template asVectorT<LongType>();
|
|
} else if (dim_values > 0) {
|
|
|
|
std::vector<LongType> *args = new std::vector<LongType>();
|
|
for (size_t e = 5; e < block.getIArguments()->size(); e++) args->emplace_back(INT_ARG(e));
|
|
|
|
// FIXME: probably template required here
|
|
ShapeUtils::copyVectorPart(begin, *args, elements, 0);
|
|
ShapeUtils::copyVectorPart(end, *args, elements, elements);
|
|
ShapeUtils::copyVectorPart(strides, *args, elements, elements * 2);
|
|
|
|
delete args;
|
|
}
|
|
|
|
REQUIRE_TRUE(begin.size() > 0 && end.size() > 0 && strides.size() > 0, 0, "Strided_Slice: empty arguments");
|
|
|
|
|
|
std::vector<LongType> *input_shape = new std::vector<LongType>();
|
|
std::vector<LongType> *shape = new std::vector<LongType>();
|
|
|
|
auto rank = shape::rank(inShape);
|
|
auto shortShape = shape::shapeOf(inShape);
|
|
for (auto e = 0; e < rank; e++) input_shape->emplace_back(shortShape[e]);
|
|
|
|
bool is_identity;
|
|
bool is_simple_slice;
|
|
bool is_dim0;
|
|
|
|
std::vector<LongType> *indices = new std::vector<sd::LongType>();
|
|
bool result =
|
|
_preprocess_strided_slice(indices, shape, *input_shape, begin, end, strides, begin_mask, ellipsis_mask, end_mask,
|
|
new_axis_mask, shrink_axis_mask, &is_identity, &is_simple_slice, &is_dim0);
|
|
|
|
|
|
if (indices->size()) {
|
|
auto retDtype = block.numD() > 0 ? block.getDArguments()->at(0) : ArrayOptions::dataType(inShape);
|
|
auto newShape = ConstantShapeHelper::getInstance().createShapeInfo(retDtype, 'c', *shape);
|
|
delete input_shape;
|
|
delete shape;
|
|
delete indices;
|
|
return SHAPELIST(newShape);
|
|
}
|
|
|
|
std::vector<LongType> *retShape = new std::vector<sd::LongType>{0};
|
|
auto result2 = ConstantShapeHelper::getInstance().emptyShapeInfoWithShape(ArrayOptions::dataType(inShape),*retShape);
|
|
delete input_shape;
|
|
delete shape;
|
|
delete indices;
|
|
delete retShape;
|
|
return SHAPELIST(result2);
|
|
}
|
|
|
|
CUSTOM_OP_IMPL(strided_slice_bp, 2, 1, false, 0, 5) {
|
|
auto x = INPUT_VARIABLE(0);
|
|
auto epsNext = INPUT_VARIABLE(1);
|
|
auto output = OUTPUT_VARIABLE(0);
|
|
|
|
int begin_mask = INT_ARG(0);
|
|
int ellipsis_mask = INT_ARG(1);
|
|
int end_mask = INT_ARG(2);
|
|
int new_axis_mask = INT_ARG(3);
|
|
int shrink_axis_mask = INT_ARG(4);
|
|
|
|
int dim_values = 0;
|
|
int delta = 0;
|
|
int elements = 0;
|
|
|
|
std::vector<LongType> begin;
|
|
std::vector<LongType> end;
|
|
std::vector<LongType> strides;
|
|
std::vector<LongType> args;
|
|
|
|
// statically evaluated
|
|
if (block.getIArguments()->size() > 5) {
|
|
dim_values = block.getIArguments()->size() - 5;
|
|
delta = dim_values % 3;
|
|
elements = dim_values / 3;
|
|
|
|
for (size_t e = 5; e < block.getIArguments()->size(); e++) args.emplace_back(INT_ARG(e));
|
|
|
|
REQUIRE_TRUE(
|
|
delta == 0, 0,
|
|
"StridedSliceBP: Number of Integer arguments should be equal to input rank x 3 = %i, but got %i instead",
|
|
(x->rankOf() * 3), dim_values);
|
|
|
|
ShapeUtils::copyVectorPart(begin, args, elements, 0);
|
|
ShapeUtils::copyVectorPart(end, args, elements, elements);
|
|
ShapeUtils::copyVectorPart(strides, args, elements, elements * 2);
|
|
|
|
} else if (block.width() >= 3) {
|
|
|
|
auto v_begin = INPUT_VARIABLE(2);
|
|
auto v_end = INPUT_VARIABLE(3);
|
|
|
|
elements = v_begin->lengthOf();
|
|
|
|
REQUIRE_TRUE(v_begin->lengthOf() == v_end->lengthOf(), 0,
|
|
"StridedSliceBP: Length of begin/end should match, but got %i vs %i instead", (int)v_begin->lengthOf(),
|
|
(int)v_end->lengthOf());
|
|
|
|
for (int e = 0; e < v_begin->lengthOf(); e++) begin.emplace_back(v_begin->e<int>(e));
|
|
|
|
for (int e = 0; e < v_end->lengthOf(); e++) {
|
|
if(v_end->e<int>(e) < 0) {
|
|
end.emplace_back(v_end->e<int>(e) + x->sizeAt(e));
|
|
} else {
|
|
end.emplace_back(v_end->e<int>(e));
|
|
}
|
|
}
|
|
|
|
if (block.width() >= 4) {
|
|
auto v_stride = INPUT_VARIABLE(4);
|
|
|
|
REQUIRE_TRUE(v_stride->lengthOf() == v_begin->lengthOf(), 0,
|
|
"StridedSliceBP: Length of begin/end/stride should match, but got %i vs %i vs %i instead",
|
|
(int)v_begin->lengthOf(), (int)v_end->lengthOf(), (int)v_stride->lengthOf());
|
|
|
|
for (int e = 0; e < v_stride->lengthOf(); e++) strides.emplace_back(v_stride->e<int>(e));
|
|
} else {
|
|
for (int e = 0; e < v_begin->lengthOf(); e++) strides.emplace_back(1);
|
|
}
|
|
} else {
|
|
REQUIRE_TRUE(false, 0,
|
|
"StridedSliceBP: Can't find begin/end/stride information neither in IArguments or in input arrays");
|
|
}
|
|
|
|
// validation of begin and start
|
|
std::vector<LongType> ignoreBegin = BitwiseUtils::valueBits(begin_mask);
|
|
std::vector<LongType> ignoreEnd = BitwiseUtils::valueBits(end_mask);
|
|
std::vector<LongType> addAxes = BitwiseUtils::valueBits(new_axis_mask);
|
|
std::vector<LongType> moveAxes = BitwiseUtils::valueBits(shrink_axis_mask);
|
|
|
|
for (size_t dim = 0, b = 0, e = 0; dim < static_cast<size_t>(x->rankOf()); ++dim) {
|
|
if (moveAxes[dim]) continue;
|
|
|
|
if (b < begin.size() && !ignoreBegin[b] && !addAxes[dim]) {
|
|
int first = strides[b] > 0 ? begin[b] : math::sd_abs<int,int>(begin[b]) - 1;
|
|
REQUIRE_TRUE(first <= x->sizeAt(dim), 0,
|
|
"StridedSlice: begin index should be <= corresponding dimension of input array, but got end_index = "
|
|
"%i for dimension %i!",
|
|
begin[b], dim);
|
|
}
|
|
if (e < end.size() && !ignoreEnd[e] && !addAxes[dim]) {
|
|
int last = strides[e] > 0 ? end[e] : math::sd_abs<int,int>(end[e]) - 1;
|
|
REQUIRE_TRUE(last <= x->sizeAt(dim), 0,
|
|
"StridedSlice: end index should be <= corresponding dimension of input array, but got end_index = "
|
|
"%i for dimension %i!",
|
|
end[e], dim);
|
|
}
|
|
++b;
|
|
++e;
|
|
}
|
|
|
|
auto* input_shape_ptr = x->getShapeAsVector();
|
|
std::vector<LongType> input_shape = *input_shape_ptr;
|
|
delete input_shape_ptr;
|
|
std::vector<LongType> indices;
|
|
std::vector<LongType> final_shape;
|
|
bool is_identity;
|
|
bool is_simple_slice;
|
|
bool is_dim0;
|
|
|
|
// FIXME: remove this method once we get 1D vectors supported
|
|
vectorize(input_shape);
|
|
REQUIRE_TRUE(
|
|
_preprocess_strided_slice(&indices, &final_shape, input_shape, begin, end, strides, begin_mask, ellipsis_mask,
|
|
end_mask, new_axis_mask, shrink_axis_mask, &is_identity, &is_simple_slice, &is_dim0),
|
|
0, "StridedSliceBP: shape calculation failed");
|
|
|
|
output->nullify();
|
|
//
|
|
// the first case: only for scalar gradient step
|
|
if (epsNext->lengthOf() == 1 &&
|
|
((indices.size() == 3 && (indices[1] - indices[0]) == 1) || (indices[2] - indices[0] == 1))) {
|
|
output->p(indices[0], epsNext);
|
|
} else { // else for other cases
|
|
auto sub = (*output)(indices, true, true);
|
|
sub->assign(epsNext);
|
|
// FIXED: operator() returns a view - only delete if not a view
|
|
if (sub != nullptr && !sub->isView()) {
|
|
delete sub;
|
|
}
|
|
}
|
|
|
|
return Status::OK;
|
|
}
|
|
|
|
DECLARE_SHAPE_FN(strided_slice_bp) {
|
|
auto inShape = inputShape->at(0);
|
|
return SHAPELIST(CONSTANT(inShape));
|
|
}
|
|
|
|
DECLARE_TYPES(strided_slice) { getOpDescriptor()->setAllowedInputTypes(ANY); }
|
|
|
|
DECLARE_TYPES(strided_slice_bp) {
|
|
getOpDescriptor()->setAllowedInputTypes(ANY);
|
|
}
|
|
} // namespace ops
|
|
} // namespace sd
|
|
|
|
#endif
|