1 //===- BitcodeWriterPass.cpp - Bitcode writing pass -----------------------===//
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 // BitcodeWriterPass implementation.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "llvm/Bitcode/BitcodeWriterPass.h"
15 #include "llvm/Bitcode/ReaderWriter.h"
16 #include "llvm/IR/Module.h"
17 #include "llvm/IR/PassManager.h"
18 #include "llvm/Pass.h"
19 using namespace llvm;
20 
21 PreservedAnalyses BitcodeWriterPass::run(Module &M) {
22   WriteBitcodeToFile(&M, OS, ShouldPreserveUseListOrder, EmitSummaryIndex, EmitModuleHash);
23   return PreservedAnalyses::all();
24 }
25 
26 namespace {
27   class WriteBitcodePass : public ModulePass {
28     raw_ostream &OS; // raw_ostream to print on
29     bool ShouldPreserveUseListOrder;
30     bool EmitSummaryIndex;
31     bool EmitModuleHash;
32 
33   public:
34     static char ID; // Pass identification, replacement for typeid
35     explicit WriteBitcodePass(raw_ostream &o, bool ShouldPreserveUseListOrder,
36                               bool EmitSummaryIndex, bool EmitModuleHash)
37         : ModulePass(ID), OS(o),
38           ShouldPreserveUseListOrder(ShouldPreserveUseListOrder),
39           EmitSummaryIndex(EmitSummaryIndex), EmitModuleHash(EmitModuleHash) {}
40 
41     const char *getPassName() const override { return "Bitcode Writer"; }
42 
43     bool runOnModule(Module &M) override {
44       WriteBitcodeToFile(&M, OS, ShouldPreserveUseListOrder, EmitSummaryIndex, EmitModuleHash);
45       return false;
46     }
47   };
48 }
49 
50 char WriteBitcodePass::ID = 0;
51 
52 ModulePass *llvm::createBitcodeWriterPass(raw_ostream &Str,
53                                           bool ShouldPreserveUseListOrder,
54                                           bool EmitSummaryIndex, bool EmitModuleHash) {
55   return new WriteBitcodePass(Str, ShouldPreserveUseListOrder,
56                               EmitSummaryIndex, EmitModuleHash);
57 }
58