llvm-project/lld/include/lld/Core/PassManager.h
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

48 lines
1.3 KiB
C++

//===- lld/Core/PassManager.h - Manage linker passes ----------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLD_CORE_PASS_MANAGER_H
#define LLD_CORE_PASS_MANAGER_H
#include "lld/Common/LLVM.h"
#include "lld/Core/Pass.h"
#include "llvm/Support/Error.h"
#include <memory>
#include <vector>
namespace lld {
class SimpleFile;
class Pass;
/// Owns and runs a collection of passes.
///
/// This class is currently just a container for passes and a way to run them.
///
/// In the future this should handle timing pass runs, running parallel passes,
/// and validate/satisfy pass dependencies.
class PassManager {
public:
void add(std::unique_ptr<Pass> pass) {
_passes.push_back(std::move(pass));
}
llvm::Error runOnFile(SimpleFile &file) {
for (std::unique_ptr<Pass> &pass : _passes)
if (llvm::Error EC = pass->perform(file))
return EC;
return llvm::Error::success();
}
private:
/// Passes in the order they should run.
std::vector<std::unique_ptr<Pass>> _passes;
};
} // end namespace lld
#endif