path: root/include/llvm/Support/TargetRegistry.h

//===-- Support/TargetRegistry.h - Target Registration ----------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file exposes the TargetRegistry interface, which tools can use to access
// the appropriate target specific classes (TargetMachine, AsmPrinter, etc.)
// which have been registered.
//
// Target specific class implementations should register themselves using the
// appropriate TargetRegistry interfaces.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_SUPPORT_TARGETREGISTRY_H
#define LLVM_SUPPORT_TARGETREGISTRY_H

#include "llvm/ADT/Triple.h"
#include "llvm/Support/CodeGen.h"
#include <cassert>
#include <string>

namespace llvm {
  class AsmPrinter;
  class Module;
  class MCAssembler;
  class MCAsmBackend;
  class MCAsmInfo;
  class MCAsmParser;
  class MCCodeEmitter;
  class MCCodeGenInfo;
  class MCContext;
  class MCDisassembler;
  class MCInstrAnalysis;
  class MCInstPrinter;
  class MCInstrInfo;
  class MCRegisterInfo;
  class MCStreamer;
  class MCSubtargetInfo;
  class MCTargetAsmParser;
  class TargetMachine;
  class TargetOptions;
  class raw_ostream;
  class formatted_raw_ostream;

  MCStreamer *createAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
                                bool isVerboseAsm,
                                bool useLoc, bool useCFI,
                                bool useDwarfDirectory,
                                MCInstPrinter *InstPrint,
                                MCCodeEmitter *CE,
                                MCAsmBackend *TAB,
                                bool ShowInst);

  /// Target - Wrapper for Target specific information.
  ///
  /// For registration purposes, this is a POD type so that targets can be
  /// registered without the use of static constructors.
  ///
  /// Targets should implement a single global instance of this class (which
  /// will be zero initialized), and pass that instance to the TargetRegistry as
  /// part of their initialization.
  class Target {
  public:
    friend struct TargetRegistry;

    typedef unsigned (*TripleMatchQualityFnTy)(const std::string &TT);

    typedef MCAsmInfo *(*MCAsmInfoCtorFnTy)(const Target &T,
                                            StringRef TT);
    typedef MCCodeGenInfo *(*MCCodeGenInfoCtorFnTy)(StringRef TT,
                                                    Reloc::Model RM,
                                                    CodeModel::Model CM,
                                                    CodeGenOpt::Level OL);
    typedef MCInstrInfo *(*MCInstrInfoCtorFnTy)(void);
    typedef MCInstrAnalysis *(*MCInstrAnalysisCtorFnTy)(const MCInstrInfo*Info);
    typedef MCRegisterInfo *(*MCRegInfoCtorFnTy)(StringRef TT);
    typedef MCSubtargetInfo *(*MCSubtargetInfoCtorFnTy)(StringRef TT,
                                                        StringRef CPU,
                                                        StringRef Features);
    typedef TargetMachine *(*TargetMachineCtorTy)(const Target &T,
                                                  StringRef TT,
                                                  StringRef CPU,
                                                  StringRef Features,
                                                  const TargetOptions &Options,
                                                  Reloc::Model RM,
                                                  CodeModel::Model CM,
                                                  CodeGenOpt::Level OL);
    typedef AsmPrinter *(*AsmPrinterCtorTy)(TargetMachine &TM,
                                            MCStreamer &Streamer);
    typedef MCAsmBackend *(*MCAsmBackendCtorTy)(const Target &T,
                                                StringRef TT,
                                                StringRef CPU);
    typedef MCTargetAsmParser *(*MCAsmParserCtorTy)(MCSubtargetInfo &STI,
                                                    MCAsmParser &P);
    typedef MCDisassembler *(*MCDisassemblerCtorTy)(const Target &T,
                                                    const MCSubtargetInfo &STI);
    typedef MCInstPrinter *(*MCInstPrinterCtorTy)(const Target &T,
                                                  unsigned SyntaxVariant,
                                                  const MCAsmInfo &MAI,
                                                  const MCInstrInfo &MII,
                                                  const MCRegisterInfo &MRI,
                                                  const MCSubtargetInfo &STI);
    typedef MCCodeEmitter *(*MCCodeEmitterCtorTy)(const MCInstrInfo &II,
                                                  const MCRegisterInfo &MRI,
                                                  const MCSubtargetInfo &STI,