1 /** 2 * Copyright 2022 Huawei Technologies Co., Ltd 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef MINDSPORE_LITE_SRC_CONTROL_FLOW_KERNEL_IDENTITY_KERNEL_H_ 18 #define MINDSPORE_LITE_SRC_CONTROL_FLOW_KERNEL_IDENTITY_KERNEL_H_ 19 #include <atomic> 20 #include <utility> 21 #include <string> 22 #include <vector> 23 #include <unordered_map> 24 #include <set> 25 #include <memory> 26 #include "src/litert/lite_kernel.h" 27 #include "src/litert/executor.h" 28 #include "src/common/log_adapter.h" 29 #include "src/common/version_manager.h" 30 #include "src/litert/cpu_info.h" 31 #include "src/executor/sub_graph_kernel.h" 32 33 namespace mindspore::kernel { 34 // Identity kernel is used to update a reference to a tensor. This is useful in control flow model. 35 class IdentityKernel : public LiteKernel { 36 public: IdentityKernel(OpParameter * param,const std::vector<lite::Tensor * > & inputs,const std::vector<lite::Tensor * > & outputs,const lite::InnerContext * ctx)37 IdentityKernel(OpParameter *param, const std::vector<lite::Tensor *> &inputs, 38 const std::vector<lite::Tensor *> &outputs, const lite::InnerContext *ctx) 39 : LiteKernel(param, inputs, outputs, ctx) { 40 #if defined(ENABLE_ARM) && defined(ENABLE_FP16) 41 lite::CpuInfo cpu_info; 42 support_fp16_ = cpu_info.ArmIsSupportFp16(); 43 #endif 44 need_resize_.resize(inputs.size()); 45 } 46 ~IdentityKernel() override = default; 47 int PreProcess() override; 48 int PostProcess() override; 49 int InferShape() override; 50 int ReSize() override; 51 int Run() override; 52 static KernelExec *Create(std::vector<lite::Tensor *> in_tensors, std::vector<lite::Tensor *> out_tensors, 53 const lite::InnerContext *ctx); 54 55 protected: 56 int schema_version_ = lite::SCHEMA_VERSION::SCHEMA_CUR; 57 std::vector<bool> need_resize_{}; 58 bool support_fp16_ = false; 59 }; 60 } // namespace mindspore::kernel 61 #endif // MINDSPORE_LITE_SRC_CONTROL_FLOW_KERNEL_IDENTITY_KERNEL_H_ 62