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//===- LTO.h ----------------------------------------------------*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// This file provides a way to combine bitcode files into one ELF
// file by compiling them using LLVM.
// If LTO is in use, your input files are not in regular ELF files
// but instead LLVM bitcode files. In that case, the linker has to
// convert bitcode files into the native format so that we can create
// an ELF file that contains native code. This file provides that
// functionality.
#ifndef LLD_ELF_LTO_H
#define LLD_ELF_LTO_H
#include "lld/Common/LLVM.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/raw_ostream.h"
#include <memory>
#include <vector>
namespace llvm {
namespace lto {
class LTO;
} // namespace llvm
namespace lld {
namespace elf {
class BitcodeFile;
class InputFile;
class LazyObjFile;
class BitcodeCompiler {
void add(BitcodeFile &f);
std::vector<InputFile *> compile();
std::unique_ptr<llvm::lto::LTO> ltoObj;
std::vector<SmallString<0>> buf;
std::vector<std::unique_ptr<MemoryBuffer>> files;
llvm::DenseSet<StringRef> usedStartStop;
std::unique_ptr<llvm::raw_fd_ostream> indexFile;
llvm::DenseSet<StringRef> thinIndices;
} // namespace elf
} // namespace lld