1//===- ThinLTOBitcodeWriter.h - Bitcode writing pass for ThinLTO ----------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This pass prepares a module containing type metadata for ThinLTO by splitting 11// it into regular and thin LTO parts if possible, and writing both parts to 12// a multi-module bitcode file. Modules that do not contain type metadata are 13// written unmodified as a single module. 14// 15//===----------------------------------------------------------------------===// 16 17#ifndef LLVM_TRANSFORMS_IPO_THINLTOBITCODEWRITER_H 18#define LLVM_TRANSFORMS_IPO_THINLTOBITCODEWRITER_H 19 20#include <llvm/IR/PassManager.h> 21#include <llvm/Support/raw_ostream.h> 22 23namespace llvm { 24 25class ThinLTOBitcodeWriterPass 26 : public PassInfoMixin<ThinLTOBitcodeWriterPass> { 27 raw_ostream &OS; 28 raw_ostream *ThinLinkOS; 29 30public: 31 // Writes bitcode to OS. Also write thin link file to ThinLinkOS, if 32 // it's not nullptr. 33 ThinLTOBitcodeWriterPass(raw_ostream &OS, raw_ostream *ThinLinkOS) 34 : OS(OS), ThinLinkOS(ThinLinkOS) {} 35 36 PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM); 37}; 38 39} // namespace llvm 40 41#endif 42