text: //*****************************************************************************
  // Copyright 2017-2020 Intel Corporation
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     http://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.
  //*****************************************************************************
  
  #include <cstring>
  
  #include "ngraph/op/replace_slice.hpp"
  #include "ngraph/runtime/cpu/cpu_builder.hpp"
  #include "ngraph/runtime/cpu/kernel/replace_slice.hpp"
  
  using namespace std;
  using namespace ngraph;
  
  namespace ngraph
  {
      namespace runtime
      {
          namespace cpu
          {
              template <>
              void Builder::BUILDER_DECL(ngraph::op::ReplaceSlice)
              {
                  auto& functors = external_function->get_functors();
  
                  auto arg0_buffer_index = external_function->get_buffer_index(args[0].get_name());
                  auto arg1_buffer_index = external_function->get_buffer_index(args[1].get_name());
  
                  auto out_buffer_index = external_function->get_buffer_index(out[0].get_name());
  
                  auto replace_slice = static_cast<const ngraph::op::ReplaceSlice*>(node);
  
                  auto arg0_shape = args[0].get_shape();
                  auto arg1_shape = args[1].get_shape();
                  auto out_shape = out[0].get_shape();
  
                  auto strides = replace_slice->get_strides();
                  auto lower_bounds = replace_slice->get_lower_bounds();
                  auto upper_bounds = replace_slice->get_upper_bounds();
  
                  bool strided = false;
                  for (auto stride : strides)
                  {
                      if (stride != 1)
                      {
                          strided = true;
                          break;
                      }
                  }
  
                  if (!arg0_shape.size())
                  {
                      size_t size = args[0].get_element_type().size();
                      auto functor = [&, size, arg1_buffer_index, out_buffer_index](
                          CPURuntimeContext* ctx, CPUExecutionContext* /* ectx */) {
                          memcpy(ctx->buffer_data[out_buffer_index],
                                 ctx->buffer_data[arg1_buffer_index],
                                 size);
                      };
                      functors.emplace_back(functor);
                      return;
                  }
  
                  if (strided && is_optimized_et(args[0].get_element_type()))
                  {
                      std::function<decltype(runtime::cpu::kernel::strided_replace_slice<float, 2>)>
                          kernel;
  
                      SELECT_ETS_AND_RANK7(kernel,
                                           args[0].get_element_type(),
                                           arg0_shape.size(),
                                           runtime::cpu::kernel::strided_replace_slice);
  
                      auto functor = [&,
                                      kernel,
                                      arg0_shape,
                                      arg1_shape,
                                      lower_bounds,
                                      upper_bounds,
                                      strides,
                                      arg0_buffer_index,
                                      arg1_buffer_index,
                                      out_buffer_index](CPURuntimeContext* ctx,
                                                        CPUExecutionContext* ectx) {
                          kernel(ctx->buffer_data[arg0_buffer_index],
                                 ctx->buffer_data[arg1_buffer_index],
                                 ctx->buffer_data[out_buffer_index],
                                 arg0_shape,
                                 arg1_shape,
                                 lower_bounds,
                                 upper_bounds,
                                 strides,
                                 ectx->arena);
                      };
                      functors.emplace_back(functor);
                  }
                  else if (is_optimized_et(args[0].get_element_type()))
                  {
                      std::function<decltype(runtime::cpu::kernel::replace_slice<float, 2>)> kernel;
  
                      SELECT_ETS_AND_RANK7(kernel,
                                           args[0].get_element_type(),
                                           arg0_shape.size(),
                                           runtime::cpu::kernel::replace_slice);
  
                      auto functor = [&,
                                      kernel,
                                      arg0_shape,
                                      arg1_shape,
                                      lower_bounds,
                                      arg0_buffer_index,
                                      arg1_buffer_index,
                                      out_buffer_index](CPURuntimeContext* ctx,
                                                        CPUExecutionContext* ectx) {
                          kernel(ctx->buffer_data[arg0_buffer_index],
                                 ctx->buffer_data[arg1_buffer_index],
                                 ctx->buffer_data[out_buffer_index],
                                 arg0_shape,
                                 arg1_shape,
                                 lower_bounds,
                                 ectx->arena);
                      };
                      functors.emplace_back(functor);
                  }
                  else
                  {
                      std::function<decltype(runtime::cpu::kernel::ref_replace_slice<float>)> kernel;
                      SELECT_KERNEL(kernel,
                                    args[0].get_element_type(),
                                    runtime::cpu::kernel::ref_replace_slice);
                      auto functor = [&,
                                      kernel,
                                      arg1_shape,
                                      out_shape,
                                      lower_bounds,
                                      upper_bounds,
                                      strides,
                                      arg0_buffer_index,
                                      arg1_buffer_index,
                                      out_buffer_index](CPURuntimeContext* ctx,
                                                        CPUExecutionContext* /*ectx*/) {
                          kernel(ctx->buffer_data[arg0_buffer_index],
                                 ctx->buffer_data[arg1_buffer_index],
                                 ctx->buffer_data[out_buffer_index],
                                 arg1_shape,
                                 lower_bounds,
                                 upper_bounds,
                                 strides,
                                 out_shape);
                      };
                      functors.emplace_back(functor);
                  }
              }
  
              void register_builders_replace_slice_cpp() { REGISTER_OP_BUILDER(ReplaceSlice); }
          }
      }
  }
  