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