HexagonMCTargetDesc.cpp | Explore in Territory

//===-- HexagonMCTargetDesc.cpp - Hexagon Target Descriptions -------------===//
//
// 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 provides Hexagon specific target descriptions.
//
//===----------------------------------------------------------------------===//

#include "MCTargetDesc/HexagonMCTargetDesc.h"
#include "HexagonDepArch.h"
#include "HexagonTargetStreamer.h"
#include "MCTargetDesc/HexagonInstPrinter.h"
#include "MCTargetDesc/HexagonMCAsmInfo.h"
#include "MCTargetDesc/HexagonMCELFStreamer.h"
#include "MCTargetDesc/HexagonMCInstrInfo.h"
#include "TargetInfo/HexagonTargetInfo.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/MC/MCAsmBackend.h"
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDwarf.h"
#include "llvm/MC/MCELFObjectWriter.h"
#include "llvm/MC/MCELFStreamer.h"
#include "llvm/MC/MCInstrAnalysis.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/HexagonAttributes.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>
#include <cstdint>
#include <mutex>
#include <new>
#include <string>
#include <unordered_map>

usingnamespacellvm;

#define GET_INSTRINFO_MC_DESC
#define ENABLE_INSTR_PREDICATE_VERIFIER
#include "HexagonGenInstrInfo.inc"

#define GET_SUBTARGETINFO_MC_DESC
#include "HexagonGenSubtargetInfo.inc"

#define GET_REGINFO_MC_DESC
#include "HexagonGenRegisterInfo.inc"

cl::opt<bool> llvm::HexagonDisableCompound
  ("mno-compound",
   cl::desc("Disable looking for compound instructions for Hexagon"));

cl::opt<bool> llvm::HexagonDisableDuplex
  ("mno-pairing",
   cl::desc("Disable looking for duplex instructions for Hexagon"));

namespace { // These flags are to be deprecated
cl::opt<bool> MV5("mv5", cl::Hidden, cl::desc("Build for Hexagon V5"),
                  cl::init(false));
cl::opt<bool> MV55("mv55", cl::Hidden, cl::desc("Build for Hexagon V55"),
                   cl::init(false));
cl::opt<bool> MV60("mv60", cl::Hidden, cl::desc("Build for Hexagon V60"),
                   cl::init(false));
cl::opt<bool> MV62("mv62", cl::Hidden, cl::desc("Build for Hexagon V62"),
                   cl::init(false));
cl::opt<bool> MV65("mv65", cl::Hidden, cl::desc("Build for Hexagon V65"),
                   cl::init(false));
cl::opt<bool> MV66("mv66", cl::Hidden, cl::desc("Build for Hexagon V66"),
                   cl::init(false));
cl::opt<bool> MV67("mv67", cl::Hidden, cl::desc("Build for Hexagon V67"),
                   cl::init(false));
cl::opt<bool> MV67T("mv67t", cl::Hidden, cl::desc("Build for Hexagon V67T"),
                    cl::init(false));
cl::opt<bool> MV68("mv68", cl::Hidden, cl::desc("Build for Hexagon V68"),
                   cl::init(false));
cl::opt<bool> MV69("mv69", cl::Hidden, cl::desc("Build for Hexagon V69"),
                   cl::init(false));
cl::opt<bool> MV71("mv71", cl::Hidden, cl::desc("Build for Hexagon V71"),
                   cl::init(false));
cl::opt<bool> MV71T("mv71t", cl::Hidden, cl::desc("Build for Hexagon V71T"),
                    cl::init(false));
cl::opt<bool> MV73("mv73", cl::Hidden, cl::desc("Build for Hexagon V73"),
                   cl::init(false));
} // namespace

cl::opt<Hexagon::ArchEnum> EnableHVX(
    "mhvx", cl::desc("Enable Hexagon Vector eXtensions"),
    cl::values(clEnumValN(Hexagon::ArchEnum::V60, "v60", "Build for HVX v60"),
               clEnumValN(Hexagon::ArchEnum::V62, "v62", "Build for HVX v62"),
               clEnumValN(Hexagon::ArchEnum::V65, "v65", "Build for HVX v65"),
               clEnumValN(Hexagon::ArchEnum::V66, "v66", "Build for HVX v66"),
               clEnumValN(Hexagon::ArchEnum::V67, "v67", "Build for HVX v67"),
               clEnumValN(Hexagon::ArchEnum::V68, "v68", "Build for HVX v68"),
               clEnumValN(Hexagon::ArchEnum::V69, "v69", "Build for HVX v69"),
               clEnumValN(Hexagon::ArchEnum::V71, "v71", "Build for HVX v71"),
               clEnumValN(Hexagon::ArchEnum::V73, "v73", "Build for HVX v73"),
               // Sentinel for no value specified.
               clEnumValN(Hexagon::ArchEnum::Generic, "", "")),
    // Sentinel for flag not present.
    cl::init(Hexagon::ArchEnum::NoArch), cl::ValueOptional);

static cl::opt<bool>
  DisableHVX("mno-hvx", cl::Hidden,
             cl::desc("Disable Hexagon Vector eXtensions"));

static cl::opt<bool>
    EnableHvxIeeeFp("mhvx-ieee-fp", cl::Hidden,
                    cl::desc("Enable HVX IEEE floating point extensions"));
static cl::opt<bool> EnableHexagonCabac
  ("mcabac", cl::desc("tbd"), cl::init(false));

static StringRef DefaultArch = …;

static StringRef HexagonGetArchVariant() { … }

StringRef Hexagon_MC::selectHexagonCPU(StringRef CPU) { … }

unsigned llvm::HexagonGetLastSlot() { … }

unsigned llvm::HexagonConvertUnits(unsigned ItinUnits, unsigned *Lanes) { … }


namespace llvm {
namespace HexagonFUnits {
bool isSlot0Only(unsigned units) { … }
} // namespace HexagonFUnits
} // namespace llvm

namespace {

class HexagonTargetAsmStreamer : public HexagonTargetStreamer { … };

class HexagonTargetELFStreamer : public HexagonTargetStreamer { … };

} // end anonymous namespace

llvm::MCInstrInfo *llvm::createHexagonMCInstrInfo() { … }

static MCRegisterInfo *createHexagonMCRegisterInfo(const Triple &TT) { … }

static MCAsmInfo *createHexagonMCAsmInfo(const MCRegisterInfo &MRI,
                                         const Triple &TT,
                                         const MCTargetOptions &Options) { … }

static MCInstPrinter *createHexagonMCInstPrinter(const Triple &T,
                                                 unsigned SyntaxVariant,
                                                 const MCAsmInfo &MAI,
                                                 const MCInstrInfo &MII,
                                                 const MCRegisterInfo &MRI)
{ … }

static MCTargetStreamer *createMCAsmTargetStreamer(MCStreamer &S,
                                                   formatted_raw_ostream &OS,
                                                   MCInstPrinter *IP) { … }

static MCStreamer *createMCStreamer(Triple const &T, MCContext &Context,
                                    std::unique_ptr<MCAsmBackend> &&MAB,
                                    std::unique_ptr<MCObjectWriter> &&OW,
                                    std::unique_ptr<MCCodeEmitter> &&Emitter) { … }

static MCTargetStreamer *
createHexagonObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) { … }

static MCTargetStreamer *createHexagonNullTargetStreamer(MCStreamer &S) { … }

static void LLVM_ATTRIBUTE_UNUSED clearFeature(MCSubtargetInfo* STI, uint64_t F) { … }

static bool LLVM_ATTRIBUTE_UNUSED checkFeature(MCSubtargetInfo* STI, uint64_t F) { … }

namespace {
std::string selectHexagonFS(StringRef CPU, StringRef FS) { … }
}

static bool isCPUValid(StringRef CPU) { … }

namespace {
std::pair<std::string, std::string> selectCPUAndFS(StringRef CPU,
                                                   StringRef FS) { … }
std::mutex ArchSubtargetMutex;
std::unordered_map<std::string, std::unique_ptr<MCSubtargetInfo const>>
    ArchSubtarget;
} // namespace

MCSubtargetInfo const *
Hexagon_MC::getArchSubtarget(MCSubtargetInfo const *STI) { … }

FeatureBitset Hexagon_MC::completeHVXFeatures(const FeatureBitset &S) { … }

MCSubtargetInfo *Hexagon_MC::createHexagonMCSubtargetInfo(const Triple &TT,
                                                          StringRef CPU,
                                                          StringRef FS) { … }

void Hexagon_MC::addArchSubtarget(MCSubtargetInfo const *STI, StringRef FS) { … }

std::optional<unsigned>
Hexagon_MC::getHVXVersion(const FeatureBitset &Features) { … }

unsigned Hexagon_MC::getArchVersion(const FeatureBitset &Features) { … }

unsigned Hexagon_MC::GetELFFlags(const MCSubtargetInfo &STI) { … }

llvm::ArrayRef<MCPhysReg> Hexagon_MC::GetVectRegRev() { … }

namespace {
class HexagonMCInstrAnalysis : public MCInstrAnalysis { … };
}

static MCInstrAnalysis *createHexagonMCInstrAnalysis(const MCInstrInfo *Info) { … }

// Force static initialization.
extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeHexagonTargetMC() { … }
llvm/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.cpp
