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3682046086
This commit introduces a serializable structure called 'llvm::yaml::MachineFunction' that stores the machine function's name. This structure will mirror the machine function's state in the future. This commit prints machine functions as YAML documents containing a YAML mapping that stores the state of a machine function. This commit also parses the YAML documents that contain the machine functions. Reviewers: Duncan P. N. Exon Smith Differential Revision: http://reviews.llvm.org/D9841 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238519 91177308-0d34-0410-b5e6-96231b3b80d8
110 lines
2.9 KiB
C++
110 lines
2.9 KiB
C++
//===- MIRPrintingPass.cpp - Pass that prints out using the MIR format ----===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements a pass that prints out the LLVM module using the MIR
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// serialization format.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/Passes.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineFunctionPass.h"
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#include "llvm/CodeGen/MIRYamlMapping.h"
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#include "llvm/IR/Module.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/Support/YAMLTraits.h"
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using namespace llvm;
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namespace llvm {
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namespace yaml {
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/// This struct serializes the LLVM IR module.
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template <> struct BlockScalarTraits<Module> {
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static void output(const Module &Mod, void *Ctxt, raw_ostream &OS) {
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Mod.print(OS, nullptr);
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}
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static StringRef input(StringRef Str, void *Ctxt, Module &Mod) {
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llvm_unreachable("LLVM Module is supposed to be parsed separately");
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return "";
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}
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};
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} // end namespace yaml
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} // end namespace llvm
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namespace {
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/// This class prints out the machine functions using the MIR serialization
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/// format.
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class MIRPrinter {
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raw_ostream &OS;
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public:
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MIRPrinter(raw_ostream &OS) : OS(OS) {}
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void print(const MachineFunction &MF);
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};
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void MIRPrinter::print(const MachineFunction &MF) {
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yaml::MachineFunction YamlMF;
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YamlMF.Name = MF.getName();
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yaml::Output Out(OS);
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Out << YamlMF;
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}
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/// This pass prints out the LLVM IR to an output stream using the MIR
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/// serialization format.
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struct MIRPrintingPass : public MachineFunctionPass {
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static char ID;
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raw_ostream &OS;
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std::string MachineFunctions;
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MIRPrintingPass() : MachineFunctionPass(ID), OS(dbgs()) {}
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MIRPrintingPass(raw_ostream &OS) : MachineFunctionPass(ID), OS(OS) {}
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const char *getPassName() const override { return "MIR Printing Pass"; }
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.setPreservesAll();
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MachineFunctionPass::getAnalysisUsage(AU);
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}
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virtual bool runOnMachineFunction(MachineFunction &MF) override {
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std::string Str;
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raw_string_ostream StrOS(Str);
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MIRPrinter(StrOS).print(MF);
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MachineFunctions.append(StrOS.str());
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return false;
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}
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virtual bool doFinalization(Module &M) override {
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yaml::Output Out(OS);
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Out << M;
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OS << MachineFunctions;
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return false;
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}
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};
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char MIRPrintingPass::ID = 0;
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} // end anonymous namespace
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char &llvm::MIRPrintingPassID = MIRPrintingPass::ID;
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INITIALIZE_PASS(MIRPrintingPass, "mir-printer", "MIR Printer", false, false)
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namespace llvm {
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MachineFunctionPass *createPrintMIRPass(raw_ostream &OS) {
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return new MIRPrintingPass(OS);
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}
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} // end namespace llvm
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