lib/CodeGen/MachineFunctionPrinterPass.cpp

   1 //===-- MachineFunctionPrinterPass.cpp ------------------------------------===//
   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 // MachineFunctionPrinterPass implementation.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "llvm/CodeGen/Passes.h"
  15 #include "llvm/CodeGen/MachineFunctionPass.h"
  16 #include "llvm/CodeGen/MachineFunction.h"
  17 #include "llvm/Support/raw_ostream.h"
  18
  19 using namespace llvm;
  20
  21 namespace {
  22 /// MachineFunctionPrinterPass - This is a pass to dump the IR of a
  23 /// MachineFunction.
  24 ///
  25 struct MachineFunctionPrinterPass : public MachineFunctionPass {
  26   static char ID;
  27
  28   raw_ostream &OS;
  29   const std::string Banner;
  30
  31   MachineFunctionPrinterPass(raw_ostream &os, const std::string &banner)
  32       : MachineFunctionPass(ID), OS(os), Banner(banner) {}
  33
  34   const char *getPassName() const { return "MachineFunction Printer"; }
  35
  36   virtual void getAnalysisUsage(AnalysisUsage &AU) const {
  37     AU.setPreservesAll();
  38     MachineFunctionPass::getAnalysisUsage(AU);
  39   }
  40
  41   bool runOnMachineFunction(MachineFunction &MF) {
  42     OS << "# " << Banner << ":\n";
  43     MF.print(OS);
  44     return false;
  45   }
  46 };
  47
  48 char MachineFunctionPrinterPass::ID = 0;
  49 }
  50
  51 namespace llvm {
  52 /// Returns a newly-created MachineFunction Printer pass. The
  53 /// default banner is empty.
  54 ///
  55 MachineFunctionPass *createMachineFunctionPrinterPass(raw_ostream &OS,
  56                                                       const std::string &Banner){
  57   return new MachineFunctionPrinterPass(OS, Banner);
  58 }
  59
  60 }