chore: import upstream snapshot with attribution

paddle/fluid/jit/function_utils.h

@@ -0,0 +1,77 @@
+// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+//
+// 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.
+
+#pragma once
+
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include "paddle/fluid/jit/function_schema.h"
+#include "paddle/phi/api/include/tensor.h"
+#include "paddle/phi/common/place.h"
+#include "paddle/pir/include/core/program.h"
+
+namespace paddle {
+
+namespace framework {
+class Variable;
+class ProgramDesc;
+class Scope;
+}  // namespace framework
+
+namespace jit {
+using Variable = paddle::framework::Variable;
+using VariableMap = std::unordered_map<std::string, std::shared_ptr<Variable>>;
+using DenseTensor = phi::DenseTensor;
+using Tensor = paddle::Tensor;
+
+namespace utils {
+
+std::vector<DenseTensor> ToDenseTensors(const std::vector<Tensor> &tensors);
+std::vector<Tensor> ToTensors(const std::vector<DenseTensor> &tensors);
+
+void FetchOuts(const std::vector<std::string> &names,
+               const framework::Scope &scope,
+               std::vector<DenseTensor> *outs);
+
+void ShareIntoScope(const std::vector<std::string> &ordered_input_names,
+                    const std::vector<DenseTensor> &vars,
+                    framework::Scope *scope);
+
+void ShareParamsIntoScope(const std::vector<std::string> &param_names,
+                          const std::shared_ptr<VariableMap> &params_dict,
+                          framework::Scope *scope);
+
+void RemoveFeedFetch(framework::ProgramDesc *program_desc);
+
+template <typename T>
+std::shared_ptr<T> MakeEngine(const std::shared_ptr<FunctionInfo> &info,
+                              const std::shared_ptr<VariableMap> &params_dict,
+                              const phi::Place &place) {
+  return std::make_shared<T>(info, params_dict, place);
+}
+
+template <typename T>
+std::shared_ptr<T> MakePirEngine(
+    const std::shared_ptr<PirFunctionInfo> &info,
+    const std::shared_ptr<VariableMap> &params_dict,
+    const phi::Place &place,
+    const std::shared_ptr<pir::Program> &prog) {
+  return std::make_shared<T>(info, params_dict, place, prog);
+}
+
+}  // namespace utils
+}  // namespace jit
+}  // namespace paddle