71 lines · cpp
1//===-- MachineFunctionPrinterPass.cpp ------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8//9// MachineFunctionPrinterPass implementation.10//11//===----------------------------------------------------------------------===//12 13#include "llvm/CodeGen/MachineFunction.h"14#include "llvm/CodeGen/MachineFunctionPass.h"15#include "llvm/CodeGen/Passes.h"16#include "llvm/CodeGen/SlotIndexes.h"17#include "llvm/IR/PrintPasses.h"18#include "llvm/InitializePasses.h"19#include "llvm/Support/Debug.h"20#include "llvm/Support/raw_ostream.h"21 22using namespace llvm;23 24namespace {25/// MachineFunctionPrinterPass - This is a pass to dump the IR of a26/// MachineFunction.27///28struct MachineFunctionPrinterPass : public MachineFunctionPass {29 static char ID;30 31 raw_ostream &OS;32 const std::string Banner;33 34 MachineFunctionPrinterPass() : MachineFunctionPass(ID), OS(dbgs()) { }35 MachineFunctionPrinterPass(raw_ostream &os, const std::string &banner)36 : MachineFunctionPass(ID), OS(os), Banner(banner) {}37 38 StringRef getPassName() const override { return "MachineFunction Printer"; }39 40 void getAnalysisUsage(AnalysisUsage &AU) const override {41 AU.setPreservesAll();42 AU.addUsedIfAvailable<SlotIndexesWrapperPass>();43 MachineFunctionPass::getAnalysisUsage(AU);44 }45 46 bool runOnMachineFunction(MachineFunction &MF) override {47 if (!isFunctionInPrintList(MF.getName()))48 return false;49 OS << "# " << Banner << ":\n";50 auto *SIWrapper = getAnalysisIfAvailable<SlotIndexesWrapperPass>();51 MF.print(OS, SIWrapper ? &SIWrapper->getSI() : nullptr);52 return false;53 }54};55 56char MachineFunctionPrinterPass::ID = 0;57}58 59char &llvm::MachineFunctionPrinterPassID = MachineFunctionPrinterPass::ID;60INITIALIZE_PASS(MachineFunctionPrinterPass, "machineinstr-printer",61 "Machine Function Printer", false, false)62 63/// Returns a newly-created MachineFunction Printer pass. The64/// default banner is empty.65///66MachineFunctionPass *67llvm::createMachineFunctionPrinterPass(raw_ostream &OS,68 const std::string &Banner) {69 return new MachineFunctionPrinterPass(OS, Banner);70}71