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/IR/UseListOrder.h"
19 #include "llvm/Pass.h"
20 using namespace llvm;
21 
22 PreservedAnalyses BitcodeWriterPass::run(Module &M) {
23   WriteBitcodeToFile(&M, OS, ShouldPreserveUseListOrder);
24   return PreservedAnalyses::all();
25 }
26 
27 namespace {
28   class WriteBitcodePass : public ModulePass {
29     raw_ostream &OS; // raw_ostream to print on
30     bool ShouldPreserveUseListOrder;
31 
32   public:
33     static char ID; // Pass identification, replacement for typeid
34     explicit WriteBitcodePass(raw_ostream &o, bool ShouldPreserveUseListOrder)
35         : ModulePass(ID), OS(o),
36           ShouldPreserveUseListOrder(ShouldPreserveUseListOrder) {}
37 
38     const char *getPassName() const override { return "Bitcode Writer"; }
39 
40     bool runOnModule(Module &M) override {
41       WriteBitcodeToFile(&M, OS, ShouldPreserveUseListOrder);
42       return false;
43     }
44   };
45 }
46 
47 char WriteBitcodePass::ID = 0;
48 
49 ModulePass *llvm::createBitcodeWriterPass(raw_ostream &Str,
50                                           bool ShouldPreserveUseListOrder) {
51   return new WriteBitcodePass(Str, ShouldPreserveUseListOrder);
52 }
53