chore: import upstream snapshot with attribution

paddle/fluid/framework/program_utils.h

@@ -0,0 +1,39 @@
+/* Copyright (c) 2021 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 "paddle/fluid/framework/program_desc.h"
+
+namespace paddle {
+namespace framework {
+
+void MergePrograms(ProgramDesc *dst,
+                   const std::vector<ProgramDesc> &srcs,
+                   bool append);
+
+class PADDLE_API ProgramProcessor {
+ public:
+  ProgramProcessor();
+
+  void GetInputsOutputsInBlock(const BlockDesc &current_block,
+                               std::set<std::string> *inner_inputs,
+                               std::set<std::string> *inner_outputs);
+
+  void AddDepToBlockOp(const BlockDesc &block);
+};
+void WriteToFile(const std::string &file_path, const std::string &msg);
+void DumpProgramDescFile(const std::string &name, const ProgramDesc &program);
+
+}  // namespace framework
+}  // namespace paddle