lib/Bitcode/Writer/BitcodeWriterPass.cpp

   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, shouldPreserveBitcodeUseListOrder());
  24   return PreservedAnalyses::all();
  25 }
  26
  27 namespace {
  28   class WriteBitcodePass : public ModulePass {
  29     raw_ostream &OS; // raw_ostream to print on
  30   public:
  31     static char ID; // Pass identification, replacement for typeid
  32     explicit WriteBitcodePass(raw_ostream &o)
  33       : ModulePass(ID), OS(o) {}
  34
  35     const char *getPassName() const override { return "Bitcode Writer"; }
  36
  37     bool runOnModule(Module &M) override {
  38       WriteBitcodeToFile(&M, OS, shouldPreserveBitcodeUseListOrder());
  39       return false;
  40     }
  41   };
  42 }
  43
  44 char WriteBitcodePass::ID = 0;
  45
  46 ModulePass *llvm::createBitcodeWriterPass(raw_ostream &Str) {
  47   return new WriteBitcodePass(Str);
  48 }