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//===- MIRPrintingPass.cpp - Pass that prints out using the MIR format ----===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements a pass that prints out the LLVM module using the MIR
// serialization format.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MIRYamlMapping.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/YAMLTraits.h"
using namespace llvm;
namespace llvm {
namespace yaml {
/// This struct serializes the LLVM IR module.
template <> struct BlockScalarTraits<Module> {
static void output(const Module &Mod, void *Ctxt, raw_ostream &OS) {
Mod.print(OS, nullptr);
}
static StringRef input(StringRef Str, void *Ctxt, Module &Mod) {
llvm_unreachable("LLVM Module is supposed to be parsed separately");
return "";
}
};
} // end namespace yaml
} // end namespace llvm
namespace {
/// This class prints out the machine functions using the MIR serialization
/// format.
class MIRPrinter {
raw_ostream &OS;
public:
MIRPrinter(raw_ostream &OS) : OS(OS) {}
void print(const MachineFunction &MF);
};
void MIRPrinter::print(const MachineFunction &MF) {
yaml::MachineFunction YamlMF;
YamlMF.Name = MF.getName();
yaml::Output Out(OS);
Out << YamlMF;
}
/// This pass prints out the LLVM IR to an output stream using the MIR
/// serialization format.
struct MIRPrintingPass : public MachineFunctionPass {
static char ID;
raw_ostream &OS;
std::string MachineFunctions;
MIRPrintingPass() : MachineFunctionPass(ID), OS(dbgs()) {}
MIRPrintingPass(raw_ostream &OS) : MachineFunctionPass(ID), OS(OS) {}
const char *getPassName() const override { return "MIR Printing Pass"; }
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesAll();
MachineFunctionPass::getAnalysisUsage(AU);
}
virtual bool runOnMachineFunction(MachineFunction &MF) override {
std::string Str;
raw_string_ostream StrOS(Str);
MIRPrinter(StrOS).print(MF);
MachineFunctions.append(StrOS.str());
return false;
}
virtual bool doFinalization(Module &M) override {
yaml::Output Out(OS);
Out << M;
OS << MachineFunctions;
return false;
}
};
char MIRPrintingPass::ID = 0;
} // end anonymous namespace
char &llvm::MIRPrintingPassID = MIRPrintingPass::ID;
INITIALIZE_PASS(MIRPrintingPass, "mir-printer", "MIR Printer", false, false)
namespace llvm {
MachineFunctionPass *createPrintMIRPass(raw_ostream &OS) {
return new MIRPrintingPass(OS);
}
} // end namespace llvm
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