1 //===- lld/Core/PassManager.h - Manage linker passes ----------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLD_CORE_PASS_MANAGER_H 10 #define LLD_CORE_PASS_MANAGER_H 11 12 #include "lld/Common/LLVM.h" 13 #include "lld/Core/Pass.h" 14 #include "llvm/Support/Error.h" 15 #include <memory> 16 #include <vector> 17 18 namespace lld { 19 class SimpleFile; 20 class Pass; 21 22 /// Owns and runs a collection of passes. 23 /// 24 /// This class is currently just a container for passes and a way to run them. 25 /// 26 /// In the future this should handle timing pass runs, running parallel passes, 27 /// and validate/satisfy pass dependencies. 28 class PassManager { 29 public: add(std::unique_ptr<Pass> pass)30 void add(std::unique_ptr<Pass> pass) { 31 _passes.push_back(std::move(pass)); 32 } 33 runOnFile(SimpleFile & file)34 llvm::Error runOnFile(SimpleFile &file) { 35 for (std::unique_ptr<Pass> &pass : _passes) 36 if (llvm::Error EC = pass->perform(file)) 37 return EC; 38 return llvm::Error::success(); 39 } 40 41 private: 42 /// Passes in the order they should run. 43 std::vector<std::unique_ptr<Pass>> _passes; 44 }; 45 } // end namespace lld 46 47 #endif 48