text: /*******************************************************************************
  * Copyright 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.
  *******************************************************************************/
  
  #ifndef CPU_X64_JIT_UNI_SHUFFLE_HPP
  #define CPU_X64_JIT_UNI_SHUFFLE_HPP
  
  #include <assert.h>
  
  #include "common/c_types_map.hpp"
  #include "common/dnnl_thread.hpp"
  #include "common/primitive.hpp"
  #include "common/type_helpers.hpp"
  #include "common/utils.hpp"
  
  #include "cpu/platform.hpp"
  
  #include "cpu/cpu_shuffle_pd.hpp"
  #include "cpu/x64/cpu_isa_traits.hpp"
  
  namespace dnnl {
  namespace impl {
  namespace cpu {
  namespace x64 {
  
  template <cpu_isa_t isa>
  struct jit_uni_shuffle_base_kernel_t;
  
  template <cpu_isa_t isa, int data_type_size>
  struct jit_uni_shuffle_t : public primitive_t {
      struct pd_t : public cpu_shuffle_pd_t {
          using cpu_shuffle_pd_t::cpu_shuffle_pd_t;
  
          DECLARE_COMMON_PD_T(
                  JIT_IMPL_NAME_HELPER("jit:", isa, ""), jit_uni_shuffle_t);
  
          status_t init(engine_t *engine) {
              using namespace format_tag;
  
              const bool set_default_formats
                      = IMPLICATION(!is_fwd(), set_default_formats_common());
  
              dat_tag_ = memory_desc_matches_one_of_tag(*data_md(), nChw16c);
  
              const data_type_t data_type = data_md()->data_type;
  
              // Currently supporting only group=3 (FWD, BWD) for nChw16c format
              const bool ok = mayiuse(isa)
                      && data_type_size == types::data_type_size(data_type)
                      && platform::has_data_type_support(data_type)
                      && attr()->has_default_values() && set_default_formats
                      && dat_tag_ == nChw16c && group_size() == 3 && axis() == 1;
  
              if (!ok) return status::unimplemented;
  
              return status::success;
          }
  
          format_tag_t dat_tag_;
      };
  
      jit_uni_shuffle_t(const pd_t *apd);
  
      ~jit_uni_shuffle_t();
  
      using data_t = typename typesize_traits<data_type_size>::type;
  
      status_t init(engine_t *engine) override;
  
      status_t execute(const exec_ctx_t &ctx) const override {
          using namespace format_tag;
          execute_<nChw16c>(ctx);
          return status::success;
      }
  
  private:
      template <format_tag_t tag>
      void execute_(const exec_ctx_t &ctx) const;
      const pd_t *pd() const { return (const pd_t *)primitive_t::pd().get(); }
      std::unique_ptr<jit_uni_shuffle_base_kernel_t<isa>> kernel_;
      int *input_off_;
      static constexpr int blk_size = 16;
  };
  
  } // namespace x64
  } // namespace cpu
  } // namespace impl
  } // namespace dnnl
  
  #endif
  
  // vim: et ts=4 sw=4 cindent cino+=l0,\:4,N-s
  