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//===- MC/TargetRegistry.h - Target Registration ----------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// 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_MC_TARGETREGISTRY_H
#define LLVM_MC_TARGETREGISTRY_H
#include "llvm-c/DisassemblerTypes.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/iterator_range.h"
#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/TargetParser/Triple.h"
#include <cassert>
#include <cstddef>
#include <iterator>
#include <memory>
#include <optional>
#include <string>
namespace llvm {
class AsmPrinter;
class MCAsmBackend;
class MCAsmInfo;
class MCAsmParser;
class MCCodeEmitter;
class MCContext;
class MCDisassembler;
class MCInstPrinter;
class MCInstrAnalysis;
class MCInstrInfo;
class MCObjectWriter;
class MCRegisterInfo;
class MCRelocationInfo;
class MCStreamer;
class MCSubtargetInfo;
class MCSymbolizer;
class MCTargetAsmParser;
class MCTargetOptions;
class MCTargetStreamer;
class raw_ostream;
class TargetMachine;
class TargetOptions;
namespace mca {
class CustomBehaviour;
class InstrPostProcess;
class InstrumentManager;
struct SourceMgr;
} // namespace mca
MCStreamer *createNullStreamer(MCContext &Ctx);
// Takes ownership of \p TAB and \p CE.
/// Create a machine code streamer which will print out assembly for the native
/// target, suitable for compiling with a native assembler.
///
/// \param InstPrint - If given, the instruction printer to use. If not given
/// the MCInst representation will be printed. This method takes ownership of
/// InstPrint.
///
/// \param CE - If given, a code emitter to use to show the instruction
/// encoding inline with the assembly. This method takes ownership of \p CE.
///
/// \param TAB - If given, a target asm backend to use to show the fixup
/// information in conjunction with encoding information. This method takes
/// ownership of \p TAB.
///
/// \param ShowInst - Whether to show the MCInst representation inline with
/// the assembly.
MCStreamer *
createAsmStreamer(MCContext &Ctx, std::unique_ptr<formatted_raw_ostream> OS,
MCInstPrinter *InstPrint, std::unique_ptr<MCCodeEmitter> &&CE,
std::unique_ptr<MCAsmBackend> &&TAB);
MCStreamer *createELFStreamer(MCContext &Ctx,
std::unique_ptr<MCAsmBackend> &&TAB,
std::unique_ptr<MCObjectWriter> &&OW,
std::unique_ptr<MCCodeEmitter> &&CE);
MCStreamer *createGOFFStreamer(MCContext &Ctx,
std::unique_ptr<MCAsmBackend> &&TAB,
std::unique_ptr<MCObjectWriter> &&OW,
std::unique_ptr<MCCodeEmitter> &&CE);
MCStreamer *createMachOStreamer(MCContext &Ctx,
std::unique_ptr<MCAsmBackend> &&TAB,
std::unique_ptr<MCObjectWriter> &&OW,
std::unique_ptr<MCCodeEmitter> &&CE,
bool DWARFMustBeAtTheEnd,
bool LabelSections = false);
MCStreamer *createWasmStreamer(MCContext &Ctx,
std::unique_ptr<MCAsmBackend> &&TAB,
std::unique_ptr<MCObjectWriter> &&OW,
std::unique_ptr<MCCodeEmitter> &&CE);
MCStreamer *createSPIRVStreamer(MCContext &Ctx,
std::unique_ptr<MCAsmBackend> &&TAB,
std::unique_ptr<MCObjectWriter> &&OW,
std::unique_ptr<MCCodeEmitter> &&CE);
MCStreamer *createDXContainerStreamer(MCContext &Ctx,
std::unique_ptr<MCAsmBackend> &&TAB,
std::unique_ptr<MCObjectWriter> &&OW,
std::unique_ptr<MCCodeEmitter> &&CE);
MCRelocationInfo *createMCRelocationInfo(const Triple &TT, MCContext &Ctx);
MCSymbolizer *createMCSymbolizer(const Triple &TT, LLVMOpInfoCallback GetOpInfo,
LLVMSymbolLookupCallback SymbolLookUp,
void *DisInfo, MCContext *Ctx,
std::unique_ptr<MCRelocationInfo> &&RelInfo);
mca::CustomBehaviour *createCustomBehaviour(const MCSubtargetInfo &STI,
const mca::SourceMgr &SrcMgr,
const MCInstrInfo &MCII);
mca::InstrPostProcess *createInstrPostProcess(const MCSubtargetInfo &STI,
const MCInstrInfo &MCII);
mca::InstrumentManager *createInstrumentManager(const MCSubtargetInfo &STI,
const MCInstrInfo &MCII);
/// 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;
using ArchMatchFnTy = bool (*)(Triple::ArchType Arch);
using MCAsmInfoCtorFnTy = MCAsmInfo *(*)(const MCRegisterInfo &MRI,
const Triple &TT,
const MCTargetOptions &Options);
using MCObjectFileInfoCtorFnTy = MCObjectFileInfo *(*)(MCContext &Ctx,
bool PIC,
bool LargeCodeModel);
using MCInstrInfoCtorFnTy = MCInstrInfo *(*)();
using MCInstrAnalysisCtorFnTy = MCInstrAnalysis *(*)(const MCInstrInfo *Info);
using MCRegInfoCtorFnTy = MCRegisterInfo *(*)(const Triple &TT);
using MCSubtargetInfoCtorFnTy = MCSubtargetInfo *(*)(const Triple &TT,
StringRef CPU,
StringRef Features);
using TargetMachineCtorTy = TargetMachine
*(*)(const Target &T, const Triple &TT, StringRef CPU, StringRef Features,
const TargetOptions &Options, std::optional<Reloc::Model> RM,
std::optional<CodeModel::Model> CM, CodeGenOptLevel OL, bool JIT);
// If it weren't for layering issues (this header is in llvm/Support, but
// depends on MC?) this should take the Streamer by value rather than rvalue
// reference.
using AsmPrinterCtorTy = AsmPrinter *(*)(
TargetMachine &TM, std::unique_ptr<MCStreamer> &&Streamer);
using MCAsmBackendCtorTy = MCAsmBackend *(*)(const Target &T,
const MCSubtargetInfo &STI,
const MCRegisterInfo &MRI,
const MCTargetOptions &Options);
using MCAsmParserCtorTy = MCTargetAsmParser *(*)(
const MCSubtargetInfo &STI, MCAsmParser &P, const MCInstrInfo &MII,
const MCTargetOptions &Options);
using MCDisassemblerCtorTy = MCDisassembler *(*)(const Target &T,
const MCSubtargetInfo &STI,
MCContext &Ctx);
using MCInstPrinterCtorTy = MCInstPrinter *(*)(const Triple &T,
unsigned SyntaxVariant,
const MCAsmInfo &MAI,
const MCInstrInfo &MII,
const MCRegisterInfo &MRI);
using MCCodeEmitterCtorTy = MCCodeEmitter *(*)(const MCInstrInfo &II,
MCContext &Ctx);
using ELFStreamerCtorTy =
MCStreamer *(*)(const Triple &T, MCContext &Ctx,
std::unique_ptr<MCAsmBackend> &&TAB,
std::unique_ptr<MCObjectWriter> &&OW,
std::unique_ptr<MCCodeEmitter> &&Emitter);
using MachOStreamerCtorTy =
MCStreamer *(*)(MCContext &Ctx, std::unique_ptr<MCAsmBackend> &&TAB,
std::unique_ptr<MCObjectWriter> &&OW,
std::unique_ptr<MCCodeEmitter> &&Emitter);
using COFFStreamerCtorTy =
MCStreamer *(*)(MCContext &Ctx, std::unique_ptr<MCAsmBackend> &&TAB,
std::unique_ptr<MCObjectWriter> &&OW,
std::unique_ptr<MCCodeEmitter> &&Emitter);
using XCOFFStreamerCtorTy =
MCStreamer *(*)(const Triple &T, MCContext &Ctx,
std::unique_ptr<MCAsmBackend> &&TAB,
std::unique_ptr<MCObjectWriter> &&OW,
std::unique_ptr<MCCodeEmitter> &&Emitter);
using NullTargetStreamerCtorTy = MCTargetStreamer *(*)(MCStreamer &S);
using AsmTargetStreamerCtorTy =
MCTargetStreamer *(*)(MCStreamer &S, formatted_raw_ostream &OS,
MCInstPrinter *InstPrint);
using ObjectTargetStreamerCtorTy = MCTargetStreamer *(*)(
MCStreamer &S, const MCSubtargetInfo &STI);
using MCRelocationInfoCtorTy = MCRelocationInfo *(*)(const Triple &TT,
MCContext &Ctx);
using MCSymbolizerCtorTy = MCSymbolizer *(*)(
const Triple &TT, LLVMOpInfoCallback GetOpInfo,
LLVMSymbolLookupCallback SymbolLookUp, void *DisInfo, MCContext *Ctx,
std::unique_ptr<MCRelocationInfo> &&RelInfo);
using CustomBehaviourCtorTy =
mca::CustomBehaviour *(*)(const MCSubtargetInfo &STI,
const mca::SourceMgr &SrcMgr,
const MCInstrInfo &MCII);
using InstrPostProcessCtorTy =
mca::InstrPostProcess *(*)(const MCSubtargetInfo &STI,
const MCInstrInfo &MCII);
using InstrumentManagerCtorTy =
mca::InstrumentManager *(*)(const MCSubtargetInfo &STI,
const MCInstrInfo &MCII);
private:
/// Next - The next registered target in the linked list, maintained by the
/// TargetRegistry.
Target *Next;
/// The target function for checking if an architecture is supported.
ArchMatchFnTy ArchMatchFn;
/// Name - The target name.
const char *Name;
/// ShortDesc - A short description of the target.
const char *ShortDesc;
/// BackendName - The name of the backend implementation. This must match the
/// name of the 'def X : Target ...' in TableGen.
const char *BackendName;
/// HasJIT - Whether this target supports the JIT.
bool HasJIT;
/// MCAsmInfoCtorFn - Constructor function for this target's MCAsmInfo, if
/// registered.
MCAsmInfoCtorFnTy MCAsmInfoCtorFn;
/// Constructor function for this target's MCObjectFileInfo, if registered.
MCObjectFileInfoCtorFnTy MCObjectFileInfoCtorFn;
/// MCInstrInfoCtorFn - Constructor function for this target's MCInstrInfo,
/// if registered.
MCInstrInfoCtorFnTy MCInstrInfoCtorFn;
/// MCInstrAnalysisCtorFn - Constructor function for this target's
/// MCInstrAnalysis, if registered.
MCInstrAnalysisCtorFnTy MCInstrAnalysisCtorFn;
/// MCRegInfoCtorFn - Constructor function for this target's MCRegisterInfo,
/// if registered.
MCRegInfoCtorFnTy MCRegInfoCtorFn;
/// MCSubtargetInfoCtorFn - Constructor function for this target's
/// MCSubtargetInfo, if registered.
MCSubtargetInfoCtorFnTy MCSubtargetInfoCtorFn;
/// TargetMachineCtorFn - Construction function for this target's
/// TargetMachine, if registered.
TargetMachineCtorTy TargetMachineCtorFn;
/// MCAsmBackendCtorFn - Construction function for this target's
/// MCAsmBackend, if registered.
MCAsmBackendCtorTy MCAsmBackendCtorFn;
/// MCAsmParserCtorFn - Construction function for this target's
/// MCTargetAsmParser, if registered.
MCAsmParserCtorTy MCAsmParserCtorFn;
/// AsmPrinterCtorFn - Construction function for this target's AsmPrinter,
/// if registered.
AsmPrinterCtorTy AsmPrinterCtorFn;
/// MCDisassemblerCtorFn - Construction function for this target's
/// MCDisassembler, if registered.
MCDisassemblerCtorTy MCDisassemblerCtorFn;
/// MCInstPrinterCtorFn - Construction function for this target's
/// MCInstPrinter, if registered.
MCInstPrinterCtorTy MCInstPrinterCtorFn;
/// MCCodeEmitterCtorFn - Construction function for this target's
/// CodeEmitter, if registered.
MCCodeEmitterCtorTy MCCodeEmitterCtorFn;
// Construction functions for the various object formats, if registered.
COFFStreamerCtorTy COFFStreamerCtorFn = nullptr;
MachOStreamerCtorTy MachOStreamerCtorFn = nullptr;
ELFStreamerCtorTy ELFStreamerCtorFn = nullptr;
XCOFFStreamerCtorTy XCOFFStreamerCtorFn = nullptr;
/// Construction function for this target's null TargetStreamer, if
/// registered (default = nullptr).
NullTargetStreamerCtorTy NullTargetStreamerCtorFn = nullptr;
/// Construction function for this target's asm TargetStreamer, if
/// registered (default = nullptr).
AsmTargetStreamerCtorTy AsmTargetStreamerCtorFn = nullptr;
/// Construction function for this target's obj TargetStreamer, if
/// registered (default = nullptr).
ObjectTargetStreamerCtorTy ObjectTargetStreamerCtorFn = nullptr;
/// MCRelocationInfoCtorFn - Construction function for this target's
/// MCRelocationInfo, if registered (default = llvm::createMCRelocationInfo)
MCRelocationInfoCtorTy MCRelocationInfoCtorFn = nullptr;
/// MCSymbolizerCtorFn - Construction function for this target's
/// MCSymbolizer, if registered (default = llvm::createMCSymbolizer)
MCSymbolizerCtorTy MCSymbolizerCtorFn = nullptr;
/// CustomBehaviourCtorFn - Construction function for this target's
/// CustomBehaviour, if registered (default = nullptr).
CustomBehaviourCtorTy CustomBehaviourCtorFn = nullptr;
/// InstrPostProcessCtorFn - Construction function for this target's
/// InstrPostProcess, if registered (default = nullptr).
InstrPostProcessCtorTy InstrPostProcessCtorFn = nullptr;
/// InstrumentManagerCtorFn - Construction function for this target's
/// InstrumentManager, if registered (default = nullptr).
InstrumentManagerCtorTy InstrumentManagerCtorFn = nullptr;
public:
Target() = default;
/// @name Target Information
/// @{
// getNext - Return the next registered target.
const Target *getNext() const { return Next; }
/// getName - Get the target name.
const char *getName() const { return Name; }
/// getShortDescription - Get a short description of the target.
const char *getShortDescription() const { return ShortDesc; }
/// getBackendName - Get the backend name.
const char *getBackendName() const { return BackendName; }
/// @}
/// @name Feature Predicates
/// @{
/// hasJIT - Check if this targets supports the just-in-time compilation.
bool hasJIT() const { return HasJIT; }
/// hasTargetMachine - Check if this target supports code generation.
bool hasTargetMachine() const { return TargetMachineCtorFn != nullptr; }
/// hasMCAsmBackend - Check if this target supports .o generation.
bool hasMCAsmBackend() const { return MCAsmBackendCtorFn != nullptr; }
/// hasMCAsmParser - Check if this target supports assembly parsing.
bool hasMCAsmParser() const { return MCAsmParserCtorFn != nullptr; }
/// @}
/// @name Feature Constructors
/// @{
/// createMCAsmInfo - Create a MCAsmInfo implementation for the specified
/// target triple.
///
/// \param TheTriple This argument is used to determine the target machine
/// feature set; it should always be provided. Generally this should be
/// either the target triple from the module, or the target triple of the
/// host if that does not exist.
MCAsmInfo *createMCAsmInfo(const MCRegisterInfo &MRI, StringRef TheTriple,
const MCTargetOptions &Options) const {
if (!MCAsmInfoCtorFn)
return nullptr;
return MCAsmInfoCtorFn(MRI, Triple(TheTriple), Options);
}
/// Create a MCObjectFileInfo implementation for the specified target
/// triple.
///
MCObjectFileInfo *createMCObjectFileInfo(MCContext &Ctx, bool PIC,
bool LargeCodeModel = false) const {
if (!MCObjectFileInfoCtorFn) {
MCObjectFileInfo *MOFI = new MCObjectFileInfo();
MOFI->initMCObjectFileInfo(Ctx, PIC, LargeCodeModel);
return MOFI;
}
return MCObjectFileInfoCtorFn(Ctx, PIC, LargeCodeModel);
}
/// createMCInstrInfo - Create a MCInstrInfo implementation.
///
MCInstrInfo *createMCInstrInfo() const {
if (!MCInstrInfoCtorFn)
return nullptr;
return MCInstrInfoCtorFn();
}
/// createMCInstrAnalysis - Create a MCInstrAnalysis implementation.
///
MCInstrAnalysis *createMCInstrAnalysis(const MCInstrInfo *Info) const {
if (!MCInstrAnalysisCtorFn)
return nullptr;
return MCInstrAnalysisCtorFn(Info);
}
/// createMCRegInfo - Create a MCRegisterInfo implementation.
///
MCRegisterInfo *createMCRegInfo(StringRef TT) const {
if (!MCRegInfoCtorFn)
return nullptr;
return MCRegInfoCtorFn(Triple(TT));
}
/// createMCSubtargetInfo - Create a MCSubtargetInfo implementation.
///
/// \param TheTriple This argument is used to determine the target machine
/// feature set; it should always be provided. Generally this should be
/// either the target triple from the module, or the target triple of the
/// host if that does not exist.
/// \param CPU This specifies the name of the target CPU.
/// \param Features This specifies the string representation of the
/// additional target features.
MCSubtargetInfo *createMCSubtargetInfo(StringRef TheTriple, StringRef CPU,
StringRef Features) const {
if (!MCSubtargetInfoCtorFn)
return nullptr;
return MCSubtargetInfoCtorFn(Triple(TheTriple), CPU, Features);
}
/// createTargetMachine - Create a target specific machine implementation
/// for the specified \p Triple.
///
/// \param TT This argument is used to determine the target machine
/// feature set; it should always be provided. Generally this should be
/// either the target triple from the module, or the target triple of the
/// host if that does not exist.
TargetMachine *createTargetMachine(
StringRef TT, StringRef CPU, StringRef Features,
const TargetOptions &Options, std::optional<Reloc::Model> RM,
std::optional<CodeModel::Model> CM = std::nullopt,
CodeGenOptLevel OL = CodeGenOptLevel::Default, bool JIT = false) const {
if (!TargetMachineCtorFn)
return nullptr;
return TargetMachineCtorFn(*this, Triple(TT), CPU, Features, Options, RM,
CM, OL, JIT);
}
/// createMCAsmBackend - Create a target specific assembly parser.
MCAsmBackend *createMCAsmBackend(const MCSubtargetInfo &STI,
const MCRegisterInfo &MRI,
const MCTargetOptions &Options) const {
if (!MCAsmBackendCtorFn)
return nullptr;
return MCAsmBackendCtorFn(*this, STI, MRI, Options);
}
/// createMCAsmParser - Create a target specific assembly parser.
///
/// \param Parser The target independent parser implementation to use for
/// parsing and lexing.
MCTargetAsmParser *createMCAsmParser(const MCSubtargetInfo &STI,
MCAsmParser &Parser,
const MCInstrInfo &MII,
const MCTargetOptions &Options) const {
if (!MCAsmParserCtorFn)
return nullptr;
return MCAsmParserCtorFn(STI, Parser, MII, Options);
}
/// createAsmPrinter - Create a target specific assembly printer pass. This
/// takes ownership of the MCStreamer object.
AsmPrinter *createAsmPrinter(TargetMachine &TM,
std::unique_ptr<MCStreamer> &&Streamer) const {
if (!AsmPrinterCtorFn)
return nullptr;
return AsmPrinterCtorFn(TM, std::move(Streamer));
}
MCDisassembler *createMCDisassembler(const MCSubtargetInfo &STI,
MCContext &Ctx) const {
if (!MCDisassemblerCtorFn)
return nullptr;
return MCDisassemblerCtorFn(*this, STI, Ctx);
}
MCInstPrinter *createMCInstPrinter(const Triple &T, unsigned SyntaxVariant,
const MCAsmInfo &MAI,
const MCInstrInfo &MII,
const MCRegisterInfo &MRI) const {
if (!MCInstPrinterCtorFn)
return nullptr;
return MCInstPrinterCtorFn(T, SyntaxVariant, MAI, MII, MRI);
}
/// createMCCodeEmitter - Create a target specific code emitter.
MCCodeEmitter *createMCCodeEmitter(const MCInstrInfo &II,
MCContext &Ctx) const {
if (!MCCodeEmitterCtorFn)
return nullptr;
return MCCodeEmitterCtorFn(II, Ctx);
}
/// Create a target specific MCStreamer.
///
/// \param T The target triple.
/// \param Ctx The target context.
/// \param TAB The target assembler backend object. Takes ownership.
/// \param OW The stream object.
/// \param Emitter The target independent assembler object.Takes ownership.
MCStreamer *createMCObjectStreamer(const Triple &T, MCContext &Ctx,
std::unique_ptr<MCAsmBackend> TAB,
std::unique_ptr<MCObjectWriter> OW,
std::unique_ptr<MCCodeEmitter> Emitter,
const MCSubtargetInfo &STI) const;
LLVM_DEPRECATED("Use the overload without the 3 trailing bool", "")
MCStreamer *createMCObjectStreamer(const Triple &T, MCContext &Ctx,
std::unique_ptr<MCAsmBackend> &&TAB,
std::unique_ptr<MCObjectWriter> &&OW,
std::unique_ptr<MCCodeEmitter> &&Emitter,
const MCSubtargetInfo &STI, bool, bool,
bool) const;
MCStreamer *createAsmStreamer(MCContext &Ctx,
std::unique_ptr<formatted_raw_ostream> OS,
MCInstPrinter *IP,
std::unique_ptr<MCCodeEmitter> CE,
std::unique_ptr<MCAsmBackend> TAB) const;
LLVM_DEPRECATED("Use the overload without the 3 unused bool", "")
MCStreamer *
createAsmStreamer(MCContext &Ctx, std::unique_ptr<formatted_raw_ostream> OS,
bool IsVerboseAsm, bool UseDwarfDirectory,
MCInstPrinter *IP, std::unique_ptr<MCCodeEmitter> &&CE,
std::unique_ptr<MCAsmBackend> &&TAB, bool ShowInst) const;
MCTargetStreamer *createAsmTargetStreamer(MCStreamer &S,
formatted_raw_ostream &OS,
MCInstPrinter *InstPrint) const {
if (AsmTargetStreamerCtorFn)
return AsmTargetStreamerCtorFn(S, OS, InstPrint);
return nullptr;
}
MCStreamer *createNullStreamer(MCContext &Ctx) const {
MCStreamer *S = llvm::createNullStreamer(Ctx);
createNullTargetStreamer(*S);
return S;
}
MCTargetStreamer *createNullTargetStreamer(MCStreamer &S) const {
if (NullTargetStreamerCtorFn)
return NullTargetStreamerCtorFn(S);
return nullptr;
}
/// createMCRelocationInfo - Create a target specific MCRelocationInfo.
///
/// \param TT The target triple.
/// \param Ctx The target context.
MCRelocationInfo *createMCRelocationInfo(StringRef TT, MCContext &Ctx) const {
MCRelocationInfoCtorTy Fn = MCRelocationInfoCtorFn
? MCRelocationInfoCtorFn
: llvm::createMCRelocationInfo;
return Fn(Triple(TT), Ctx);
}
/// createMCSymbolizer - Create a target specific MCSymbolizer.
///
/// \param TT The target triple.
/// \param GetOpInfo The function to get the symbolic information for
/// operands.
/// \param SymbolLookUp The function to lookup a symbol name.
/// \param DisInfo The pointer to the block of symbolic information for above
/// call
/// back.
/// \param Ctx The target context.
/// \param RelInfo The relocation information for this target. Takes
/// ownership.
MCSymbolizer *
createMCSymbolizer(StringRef TT, LLVMOpInfoCallback GetOpInfo,
LLVMSymbolLookupCallback SymbolLookUp, void *DisInfo,
MCContext *Ctx,
std::unique_ptr<MCRelocationInfo> &&RelInfo) const {
MCSymbolizerCtorTy Fn =
MCSymbolizerCtorFn ? MCSymbolizerCtorFn : llvm::createMCSymbolizer;
return Fn(Triple(TT), GetOpInfo, SymbolLookUp, DisInfo, Ctx,
std::move(RelInfo));
}
/// createCustomBehaviour - Create a target specific CustomBehaviour.
/// This class is used by llvm-mca and requires backend functionality.
mca::CustomBehaviour *createCustomBehaviour(const MCSubtargetInfo &STI,
const mca::SourceMgr &SrcMgr,
const MCInstrInfo &MCII) const {
if (CustomBehaviourCtorFn)
return CustomBehaviourCtorFn(STI, SrcMgr, MCII);
return nullptr;
}
/// createInstrPostProcess - Create a target specific InstrPostProcess.
/// This class is used by llvm-mca and requires backend functionality.
mca::InstrPostProcess *createInstrPostProcess(const MCSubtargetInfo &STI,
const MCInstrInfo &MCII) const {
if (InstrPostProcessCtorFn)
return InstrPostProcessCtorFn(STI, MCII);
return nullptr;
}
/// createInstrumentManager - Create a target specific
/// InstrumentManager. This class is used by llvm-mca and requires
/// backend functionality.
mca::InstrumentManager *
createInstrumentManager(const MCSubtargetInfo &STI,
const MCInstrInfo &MCII) const {
if (InstrumentManagerCtorFn)
return InstrumentManagerCtorFn(STI, MCII);
return nullptr;
}
/// @}
};
/// TargetRegistry - Generic interface to target specific features.
struct TargetRegistry {
// FIXME: Make this a namespace, probably just move all the Register*
// functions into Target (currently they all just set members on the Target
// anyway, and Target friends this class so those functions can...
// function).
TargetRegistry() = delete;
class iterator {
friend struct TargetRegistry;
const Target *Current = nullptr;
explicit iterator(Target *T) : Current(T) {}
public:
using iterator_category = std::forward_iterator_tag;
using value_type = Target;
using difference_type = std::ptrdiff_t;
using pointer = value_type *;
using reference = value_type &;
iterator() = default;
bool operator==(const iterator &x) const { return Current == x.Current; }
bool operator!=(const iterator &x) const { return !operator==(x); }
// Iterator traversal: forward iteration only
iterator &operator++() { // Preincrement
assert(Current && "Cannot increment end iterator!");
Current = Current->getNext();
return *this;
}
iterator operator++(int) { // Postincrement
iterator tmp = *this;
++*this;
return tmp;
}
const Target &operator*() const {
assert(Current && "Cannot dereference end iterator!");
return *Current;
}
const Target *operator->() const { return &operator*(); }
};
/// printRegisteredTargetsForVersion - Print the registered targets
/// appropriately for inclusion in a tool's version output.
static void printRegisteredTargetsForVersion(raw_ostream &OS);
/// @name Registry Access
/// @{
static iterator_range<iterator> targets();
/// lookupTarget - Lookup a target based on a target triple.
///
/// \param Triple - The triple to use for finding a target.
/// \param Error - On failure, an error string describing why no target was
/// found.
static const Target *lookupTarget(StringRef Triple, std::string &Error);
/// lookupTarget - Lookup a target based on an architecture name
/// and a target triple. If the architecture name is non-empty,
/// then the lookup is done by architecture. Otherwise, the target
/// triple is used.
///
/// \param ArchName - The architecture to use for finding a target.
/// \param TheTriple - The triple to use for finding a target. The
/// triple is updated with canonical architecture name if a lookup
/// by architecture is done.
/// \param Error - On failure, an error string describing why no target was
/// found.
static const Target *lookupTarget(StringRef ArchName, Triple &TheTriple,
std::string &Error);
/// @}
/// @name Target Registration
/// @{
/// RegisterTarget - Register the given target. Attempts to register a
/// target which has already been registered will be ignored.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Name - The target name. This should be a static string.
/// @param ShortDesc - A short target description. This should be a static
/// string.
/// @param BackendName - The name of the backend. This should be a static
/// string that is the same for all targets that share a backend
/// implementation and must match the name used in the 'def X : Target ...' in
/// TableGen.
/// @param ArchMatchFn - The arch match checking function for this target.
/// @param HasJIT - Whether the target supports JIT code
/// generation.
static void RegisterTarget(Target &T, const char *Name, const char *ShortDesc,
const char *BackendName,
Target::ArchMatchFnTy ArchMatchFn,
bool HasJIT = false);
/// RegisterMCAsmInfo - Register a MCAsmInfo implementation for the
/// given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct a MCAsmInfo for the target.
static void RegisterMCAsmInfo(Target &T, Target::MCAsmInfoCtorFnTy Fn) {
T.MCAsmInfoCtorFn = Fn;
}
/// Register a MCObjectFileInfo implementation for the given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct a MCObjectFileInfo for the target.
static void RegisterMCObjectFileInfo(Target &T,
Target::MCObjectFileInfoCtorFnTy Fn) {
T.MCObjectFileInfoCtorFn = Fn;
}
/// RegisterMCInstrInfo - Register a MCInstrInfo implementation for the
/// given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct a MCInstrInfo for the target.
static void RegisterMCInstrInfo(Target &T, Target::MCInstrInfoCtorFnTy Fn) {
T.MCInstrInfoCtorFn = Fn;
}
/// RegisterMCInstrAnalysis - Register a MCInstrAnalysis implementation for
/// the given target.
static void RegisterMCInstrAnalysis(Target &T,
Target::MCInstrAnalysisCtorFnTy Fn) {
T.MCInstrAnalysisCtorFn = Fn;
}
/// RegisterMCRegInfo - Register a MCRegisterInfo implementation for the
/// given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct a MCRegisterInfo for the target.
static void RegisterMCRegInfo(Target &T, Target::MCRegInfoCtorFnTy Fn) {
T.MCRegInfoCtorFn = Fn;
}
/// RegisterMCSubtargetInfo - Register a MCSubtargetInfo implementation for
/// the given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct a MCSubtargetInfo for the target.
static void RegisterMCSubtargetInfo(Target &T,
Target::MCSubtargetInfoCtorFnTy Fn) {
T.MCSubtargetInfoCtorFn = Fn;
}
/// RegisterTargetMachine - Register a TargetMachine implementation for the
/// given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct a TargetMachine for the target.
static void RegisterTargetMachine(Target &T, Target::TargetMachineCtorTy Fn) {
T.TargetMachineCtorFn = Fn;
}
/// RegisterMCAsmBackend - Register a MCAsmBackend implementation for the
/// given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct an AsmBackend for the target.
static void RegisterMCAsmBackend(Target &T, Target::MCAsmBackendCtorTy Fn) {
T.MCAsmBackendCtorFn = Fn;
}
/// RegisterMCAsmParser - Register a MCTargetAsmParser implementation for
/// the given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct an MCTargetAsmParser for the target.
static void RegisterMCAsmParser(Target &T, Target::MCAsmParserCtorTy Fn) {
T.MCAsmParserCtorFn = Fn;
}
/// RegisterAsmPrinter - Register an AsmPrinter implementation for the given
/// target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct an AsmPrinter for the target.
static void RegisterAsmPrinter(Target &T, Target::AsmPrinterCtorTy Fn) {
T.AsmPrinterCtorFn = Fn;
}
/// RegisterMCDisassembler - Register a MCDisassembler implementation for
/// the given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct an MCDisassembler for the target.
static void RegisterMCDisassembler(Target &T,
Target::MCDisassemblerCtorTy Fn) {
T.MCDisassemblerCtorFn = Fn;
}
/// RegisterMCInstPrinter - Register a MCInstPrinter implementation for the
/// given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct an MCInstPrinter for the target.
static void RegisterMCInstPrinter(Target &T, Target::MCInstPrinterCtorTy Fn) {
T.MCInstPrinterCtorFn = Fn;
}
/// RegisterMCCodeEmitter - Register a MCCodeEmitter implementation for the
/// given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct an MCCodeEmitter for the target.
static void RegisterMCCodeEmitter(Target &T, Target::MCCodeEmitterCtorTy Fn) {
T.MCCodeEmitterCtorFn = Fn;
}
static void RegisterCOFFStreamer(Target &T, Target::COFFStreamerCtorTy Fn) {
T.COFFStreamerCtorFn = Fn;
}
static void RegisterMachOStreamer(Target &T, Target::MachOStreamerCtorTy Fn) {
T.MachOStreamerCtorFn = Fn;
}
static void RegisterELFStreamer(Target &T, Target::ELFStreamerCtorTy Fn) {
T.ELFStreamerCtorFn = Fn;
}
static void RegisterXCOFFStreamer(Target &T, Target::XCOFFStreamerCtorTy Fn) {
T.XCOFFStreamerCtorFn = Fn;
}
static void RegisterNullTargetStreamer(Target &T,
Target::NullTargetStreamerCtorTy Fn) {
T.NullTargetStreamerCtorFn = Fn;
}
static void RegisterAsmTargetStreamer(Target &T,
Target::AsmTargetStreamerCtorTy Fn) {
T.AsmTargetStreamerCtorFn = Fn;
}
static void
RegisterObjectTargetStreamer(Target &T,
Target::ObjectTargetStreamerCtorTy Fn) {
T.ObjectTargetStreamerCtorFn = Fn;
}
/// RegisterMCRelocationInfo - Register an MCRelocationInfo
/// implementation for the given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct an MCRelocationInfo for the target.
static void RegisterMCRelocationInfo(Target &T,
Target::MCRelocationInfoCtorTy Fn) {
T.MCRelocationInfoCtorFn = Fn;
}
/// RegisterMCSymbolizer - Register an MCSymbolizer
/// implementation for the given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct an MCSymbolizer for the target.
static void RegisterMCSymbolizer(Target &T, Target::MCSymbolizerCtorTy Fn) {
T.MCSymbolizerCtorFn = Fn;
}
/// RegisterCustomBehaviour - Register a CustomBehaviour
/// implementation for the given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct a CustomBehaviour for the target.
static void RegisterCustomBehaviour(Target &T,
Target::CustomBehaviourCtorTy Fn) {
T.CustomBehaviourCtorFn = Fn;
}
/// RegisterInstrPostProcess - Register an InstrPostProcess
/// implementation for the given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct an InstrPostProcess for the target.
static void RegisterInstrPostProcess(Target &T,
Target::InstrPostProcessCtorTy Fn) {
T.InstrPostProcessCtorFn = Fn;
}
/// RegisterInstrumentManager - Register an InstrumentManager
/// implementation for the given target.
///
/// Clients are responsible for ensuring that registration doesn't occur
/// while another thread is attempting to access the registry. Typically
/// this is done by initializing all targets at program startup.
///
/// @param T - The target being registered.
/// @param Fn - A function to construct an InstrumentManager for the
/// target.
static void RegisterInstrumentManager(Target &T,
Target::InstrumentManagerCtorTy Fn) {
T.InstrumentManagerCtorFn = Fn;
}
/// @}
};
//===--------------------------------------------------------------------===//
/// RegisterTarget - Helper template for registering a target, for use in the
/// target's initialization function. Usage:
///
///
/// Target &getTheFooTarget() { // The global target instance.
/// static Target TheFooTarget;
/// return TheFooTarget;
/// }
/// extern "C" void LLVMInitializeFooTargetInfo() {
/// RegisterTarget<Triple::foo> X(getTheFooTarget(), "foo", "Foo
/// description", "Foo" /* Backend Name */);
/// }
template <Triple::ArchType TargetArchType = Triple::UnknownArch,
bool HasJIT = false>
struct RegisterTarget {
RegisterTarget(Target &T, const char *Name, const char *Desc,
const char *BackendName) {
TargetRegistry::RegisterTarget(T, Name, Desc, BackendName, &getArchMatch,
HasJIT);
}
static bool getArchMatch(Triple::ArchType Arch) {
return Arch == TargetArchType;
}
};
/// RegisterMCAsmInfo - Helper template for registering a target assembly info
/// implementation. This invokes the static "Create" method on the class to
/// actually do the construction. Usage:
///
/// extern "C" void LLVMInitializeFooTarget() {
/// extern Target TheFooTarget;
/// RegisterMCAsmInfo<FooMCAsmInfo> X(TheFooTarget);
/// }
template <class MCAsmInfoImpl> struct RegisterMCAsmInfo {
RegisterMCAsmInfo(Target &T) {
TargetRegistry::RegisterMCAsmInfo(T, &Allocator);
}
private:
static MCAsmInfo *Allocator(const MCRegisterInfo & /*MRI*/, const Triple &TT,
const MCTargetOptions &Options) {
return new MCAsmInfoImpl(TT, Options);
}
};
/// RegisterMCAsmInfoFn - Helper template for registering a target assembly info
/// implementation. This invokes the specified function to do the
/// construction. Usage:
///
/// extern "C" void LLVMInitializeFooTarget() {
/// extern Target TheFooTarget;
/// RegisterMCAsmInfoFn X(TheFooTarget, TheFunction);
/// }
struct RegisterMCAsmInfoFn {
RegisterMCAsmInfoFn(Target &T, Target::MCAsmInfoCtorFnTy Fn) {
TargetRegistry::RegisterMCAsmInfo(T, Fn);
}
};
/// Helper template for registering a target object file info implementation.
/// This invokes the static "Create" method on the class to actually do the
/// construction. Usage:
///
/// extern "C" void LLVMInitializeFooTarget() {
/// extern Target TheFooTarget;
/// RegisterMCObjectFileInfo<FooMCObjectFileInfo> X(TheFooTarget);
/// }
template <class MCObjectFileInfoImpl> struct RegisterMCObjectFileInfo {
RegisterMCObjectFileInfo(Target &T) {
TargetRegistry::RegisterMCObjectFileInfo(T, &Allocator);
}
private:
static MCObjectFileInfo *Allocator(MCContext &Ctx, bool PIC,
bool LargeCodeModel = false) {
return new MCObjectFileInfoImpl(Ctx, PIC, LargeCodeModel);
}
};
/// Helper template for registering a target object file info implementation.
/// This invokes the specified function to do the construction. Usage:
///
/// extern "C" void LLVMInitializeFooTarget() {
/// extern Target TheFooTarget;
/// RegisterMCObjectFileInfoFn X(TheFooTarget, TheFunction);
/// }
struct RegisterMCObjectFileInfoFn {
RegisterMCObjectFileInfoFn(Target &T, Target::MCObjectFileInfoCtorFnTy Fn) {
TargetRegistry::RegisterMCObjectFileInfo(T, Fn);
}
};
/// RegisterMCInstrInfo - Helper template for registering a target instruction
/// info implementation. This invokes the static "Create" method on the class
/// to actually do the construction. Usage:
///
/// extern "C" void LLVMInitializeFooTarget() {
/// extern Target TheFooTarget;
/// RegisterMCInstrInfo<FooMCInstrInfo> X(TheFooTarget);
/// }
template <class MCInstrInfoImpl> struct RegisterMCInstrInfo {
RegisterMCInstrInfo(Target &T) {
TargetRegistry::RegisterMCInstrInfo(T, &Allocator);
}
private:
static MCInstrInfo *Allocator() { return new MCInstrInfoImpl(); }
};
/// RegisterMCInstrInfoFn - Helper template for registering a target
/// instruction info implementation. This invokes the specified function to
/// do the construction. Usage:
///
/// extern "C" void LLVMInitializeFooTarget() {
/// extern Target TheFooTarget;
/// RegisterMCInstrInfoFn X(TheFooTarget, TheFunction);
/// }
struct RegisterMCInstrInfoFn {
RegisterMCInstrInfoFn(Target &T, Target::MCInstrInfoCtorFnTy Fn) {
TargetRegistry::RegisterMCInstrInfo(T, Fn);
}
};
/// RegisterMCInstrAnalysis - Helper template for registering a target
/// instruction analyzer implementation. This invokes the static "Create"
/// method on the class to actually do the construction. Usage:
///
/// extern "C" void LLVMInitializeFooTarget() {
/// extern Target TheFooTarget;
/// RegisterMCInstrAnalysis<FooMCInstrAnalysis> X(TheFooTarget);
/// }
template <class MCInstrAnalysisImpl> struct RegisterMCInstrAnalysis {
RegisterMCInstrAnalysis(Target &T) {
TargetRegistry::RegisterMCInstrAnalysis(T, &Allocator);
}
private:
static MCInstrAnalysis *Allocator(const MCInstrInfo *Info) {
return new MCInstrAnalysisImpl(Info);
}
};
/// RegisterMCInstrAnalysisFn - Helper template for registering a target
/// instruction analyzer implementation. This invokes the specified function
/// to do the construction. Usage:
///
/// extern "C" void LLVMInitializeFooTarget() {
/// extern Target TheFooTarget;
/// RegisterMCInstrAnalysisFn X(TheFooTarget, TheFunction);
/// }
struct RegisterMCInstrAnalysisFn {
RegisterMCInstrAnalysisFn(Target &T, Target::MCInstrAnalysisCtorFnTy Fn) {
TargetRegistry::RegisterMCInstrAnalysis(T, Fn);
}
};
/// RegisterMCRegInfo - Helper template for registering a target register info
/// implementation. This invokes the static "Create" method on the class to
/// actually do the construction. Usage:
///
/// extern "C" void LLVMInitializeFooTarget() {
/// extern Target TheFooTarget;
/// RegisterMCRegInfo<FooMCRegInfo> X(TheFooTarget);
/// }
template <class MCRegisterInfoImpl> struct RegisterMCRegInfo {
RegisterMCRegInfo(Target &T) {
TargetRegistry::RegisterMCRegInfo(T, &Allocator);
}
private:
static MCRegisterInfo *Allocator(const Triple & /*TT*/) {
return new MCRegisterInfoImpl();
}
};
/// RegisterMCRegInfoFn - Helper template for registering a target register
/// info implementation. This invokes the specified function to do the
/// construction. Usage:
///
/// extern "C" void LLVMInitializeFooTarget() {
/// extern Target TheFooTarget;
/// RegisterMCRegInfoFn X(TheFooTarget, TheFunction);
/// }
struct RegisterMCRegInfoFn {
RegisterMCRegInfoFn(Target &T, Target::MCRegInfoCtorFnTy Fn) {
TargetRegistry::RegisterMCRegInfo(T, Fn);
}
};
/// RegisterMCSubtargetInfo - Helper template for registering a target
/// subtarget info implementation. This invokes the static "Create" method
/// on the class to actually do the construction. Usage:
///
/// extern "C" void LLVMInitializeFooTarget() {
/// extern Target TheFooTarget;
/// RegisterMCSubtargetInfo<FooMCSubtargetInfo> X(TheFooTarget);
/// }
template <class MCSubtargetInfoImpl> struct RegisterMCSubtargetInfo {
RegisterMCSubtargetInfo(Target &T) {
TargetRegistry::RegisterMCSubtargetInfo(T, &Allocator);
}
private:
static MCSubtargetInfo *Allocator(const Triple & /*TT*/, StringRef /*CPU*/,
StringRef /*FS*/) {
return new MCSubtargetInfoImpl();
}
};
/// RegisterMCSubtargetInfoFn - Helper template for registering a target
/// subtarget info implementation. This invokes the specified function to
/// do the construction. Usage:
///
/// extern "C" void LLVMInitializeFooTarget() {
/// extern Target TheFooTarget;
/// RegisterMCSubtargetInfoFn X(TheFooTarget, TheFunction);
/// }
struct RegisterMCSubtargetInfoFn {
RegisterMCSubtargetInfoFn(Target &T, Target::MCSubtargetInfoCtorFnTy Fn) {
TargetRegistry::RegisterMCSubtargetInfo(T, Fn);
}
};
/// RegisterTargetMachine - Helper template for registering a target machine
/// implementation, for use in the target machine initialization
/// function. Usage:
///
/// extern "C" void LLVMInitializeFooTarget() {
/// extern Target TheFooTarget;
/// RegisterTargetMachine<FooTargetMachine> X(TheFooTarget);
/// }
template <class TargetMachineImpl> struct RegisterTargetMachine {
RegisterTargetMachine(Target &T) {
TargetRegistry::RegisterTargetMachine(T, &Allocator);
}
private:
static TargetMachine *
Allocator(const Target &T, const Triple &TT, StringRef CPU, StringRef FS,
const TargetOptions &Options, std::optional<Reloc::Model> RM,
std::optional<CodeModel::Model> CM, CodeGenOptLevel OL, bool JIT) {
return new TargetMachineImpl(T, TT, CPU, FS, Options, RM, CM, OL, JIT);
}
};
/// RegisterMCAsmBackend - Helper template for registering a target specific
/// assembler backend. Usage:
///
/// extern "C" void LLVMInitializeFooMCAsmBackend() {
/// extern Target TheFooTarget;
/// RegisterMCAsmBackend<FooAsmLexer> X(TheFooTarget);
/// }
template <class MCAsmBackendImpl> struct RegisterMCAsmBackend {
RegisterMCAsmBackend(Target &T) {
TargetRegistry::RegisterMCAsmBackend(T, &Allocator);
}
private:
static MCAsmBackend *Allocator(const Target &T, const MCSubtargetInfo &STI,
const MCRegisterInfo &MRI,
const MCTargetOptions &Options) {
return new MCAsmBackendImpl(T, STI, MRI);
}
};
/// RegisterMCAsmParser - Helper template for registering a target specific
/// assembly parser, for use in the target machine initialization
/// function. Usage:
///
/// extern "C" void LLVMInitializeFooMCAsmParser() {
/// extern Target TheFooTarget;
/// RegisterMCAsmParser<FooAsmParser> X(TheFooTarget);
/// }
template <class MCAsmParserImpl> struct RegisterMCAsmParser {
RegisterMCAsmParser(Target &T) {
TargetRegistry::RegisterMCAsmParser(T, &Allocator);
}
private:
static MCTargetAsmParser *Allocator(const MCSubtargetInfo &STI,
MCAsmParser &P, const MCInstrInfo &MII,
const MCTargetOptions &Options) {
return new MCAsmParserImpl(STI, P, MII, Options);
}
};
/// RegisterAsmPrinter - Helper template for registering a target specific
/// assembly printer, for use in the target machine initialization
/// function. Usage:
///
/// extern "C" void LLVMInitializeFooAsmPrinter() {
/// extern Target TheFooTarget;
/// RegisterAsmPrinter<FooAsmPrinter> X(TheFooTarget);
/// }
template <class AsmPrinterImpl> struct RegisterAsmPrinter {
RegisterAsmPrinter(Target &T) {
TargetRegistry::RegisterAsmPrinter(T, &Allocator);
}
private:
static AsmPrinter *Allocator(TargetMachine &TM,
std::unique_ptr<MCStreamer> &&Streamer) {
return new AsmPrinterImpl(TM, std::move(Streamer));
}
};
/// RegisterMCCodeEmitter - Helper template for registering a target specific
/// machine code emitter, for use in the target initialization
/// function. Usage:
///
/// extern "C" void LLVMInitializeFooMCCodeEmitter() {
/// extern Target TheFooTarget;
/// RegisterMCCodeEmitter<FooCodeEmitter> X(TheFooTarget);
/// }
template <class MCCodeEmitterImpl> struct RegisterMCCodeEmitter {
RegisterMCCodeEmitter(Target &T) {
TargetRegistry::RegisterMCCodeEmitter(T, &Allocator);
}
private:
static MCCodeEmitter *Allocator(const MCInstrInfo & /*II*/,
MCContext & /*Ctx*/) {
return new MCCodeEmitterImpl();
}
};
} // end namespace llvm
#endif // LLVM_MC_TARGETREGISTRY_H
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