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
18namespace lld {
19class SimpleFile;
20class 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.
28class PassManager {
29public:
30  void add(std::unique_ptr<Pass> pass) {
31    _passes.push_back(std::move(pass));
32  }
33
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
41private:
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