1 //===- BitcodeWriterPass.cpp - Bitcode writing pass -----------------------===// 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 // BitcodeWriterPass implementation. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "llvm/Bitcode/BitcodeWriterPass.h" 14 #include "llvm/Analysis/ModuleSummaryAnalysis.h" 15 #include "llvm/Bitcode/BitcodeWriter.h" 16 #include "llvm/IR/PassManager.h" 17 #include "llvm/InitializePasses.h" 18 #include "llvm/Pass.h" 19 using namespace llvm; 20 21 PreservedAnalyses BitcodeWriterPass::run(Module &M, ModuleAnalysisManager &AM) { 22 M.removeDebugIntrinsicDeclarations(); 23 24 const ModuleSummaryIndex *Index = 25 EmitSummaryIndex ? &(AM.getResult<ModuleSummaryIndexAnalysis>(M)) 26 : nullptr; 27 WriteBitcodeToFile(M, OS, ShouldPreserveUseListOrder, Index, EmitModuleHash); 28 29 return PreservedAnalyses::all(); 30 } 31 32 namespace { 33 class WriteBitcodePass : public ModulePass { 34 raw_ostream &OS; // raw_ostream to print on 35 bool ShouldPreserveUseListOrder; 36 37 public: 38 static char ID; // Pass identification, replacement for typeid 39 WriteBitcodePass() : ModulePass(ID), OS(dbgs()) { 40 initializeWriteBitcodePassPass(*PassRegistry::getPassRegistry()); 41 } 42 43 explicit WriteBitcodePass(raw_ostream &o, bool ShouldPreserveUseListOrder) 44 : ModulePass(ID), OS(o), 45 ShouldPreserveUseListOrder(ShouldPreserveUseListOrder) { 46 initializeWriteBitcodePassPass(*PassRegistry::getPassRegistry()); 47 } 48 49 StringRef getPassName() const override { return "Bitcode Writer"; } 50 51 bool runOnModule(Module &M) override { 52 M.removeDebugIntrinsicDeclarations(); 53 54 WriteBitcodeToFile(M, OS, ShouldPreserveUseListOrder, /*Index=*/nullptr, 55 /*EmitModuleHash=*/false); 56 57 return false; 58 } 59 void getAnalysisUsage(AnalysisUsage &AU) const override { 60 AU.setPreservesAll(); 61 } 62 }; 63 } 64 65 char WriteBitcodePass::ID = 0; 66 INITIALIZE_PASS_BEGIN(WriteBitcodePass, "write-bitcode", "Write Bitcode", false, 67 true) 68 INITIALIZE_PASS_DEPENDENCY(ModuleSummaryIndexWrapperPass) 69 INITIALIZE_PASS_END(WriteBitcodePass, "write-bitcode", "Write Bitcode", false, 70 true) 71 72 ModulePass *llvm::createBitcodeWriterPass(raw_ostream &Str, 73 bool ShouldPreserveUseListOrder) { 74 return new WriteBitcodePass(Str, ShouldPreserveUseListOrder); 75 } 76 77 bool llvm::isBitcodeWriterPass(Pass *P) { 78 return P->getPassID() == (llvm::AnalysisID)&WriteBitcodePass::ID; 79 } 80