//===-- ABISysV_arm64.cpp ---------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#include "ABISysV_arm64.h"

// C Includes
// C++ Includes
#include <vector>

// Other libraries and framework includes
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Triple.h"

// Project includes
#include "lldb/Core/Module.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/RegisterValue.h"
#include "lldb/Core/Scalar.h"
#include "lldb/Core/Value.h"
#include "lldb/Core/ValueObjectConstResult.h"
#include "lldb/Symbol/UnwindPlan.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
#include "lldb/Utility/ConstString.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/Status.h"

#include "Utility/ARM64_DWARF_Registers.h"

using namespace lldb;
using namespace lldb_private;

static RegisterInfo g_register_infos[] = {
    //  NAME       ALT       SZ OFF ENCODING          FORMAT
    //  EH_FRAME             DWARF                  GENERIC
    //  PROCESS PLUGIN          LLDB NATIVE
    //  ========== =======   == === =============     ===================
    //  ===================  ====================== ===========================
    //  ======================= ======================
    {"x0",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x0, LLDB_REGNUM_GENERIC_ARG1,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x1",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x1, LLDB_REGNUM_GENERIC_ARG2,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x2",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x2, LLDB_REGNUM_GENERIC_ARG3,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x3",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x3, LLDB_REGNUM_GENERIC_ARG4,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x4",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x4, LLDB_REGNUM_GENERIC_ARG5,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x5",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x5, LLDB_REGNUM_GENERIC_ARG6,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x6",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x6, LLDB_REGNUM_GENERIC_ARG7,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x7",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x7, LLDB_REGNUM_GENERIC_ARG8,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x8",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x8, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x9",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x9, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x10",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x10, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x11",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x11, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x12",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x12, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x13",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x13, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x14",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x14, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x15",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x15, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x16",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x16, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x17",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x17, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x18",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x18, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x19",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x19, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x20",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x20, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x21",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x21, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x22",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x22, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x23",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x23, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x24",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x24, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x25",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x25, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x26",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x26, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x27",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x27, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"x28",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x28, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"fp",
     "x29",
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x29, LLDB_REGNUM_GENERIC_FP,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"lr",
     "x30",
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x30, LLDB_REGNUM_GENERIC_RA,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"sp",
     "x31",
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::x31, LLDB_REGNUM_GENERIC_SP,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"pc",
     nullptr,
     8,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::pc, LLDB_REGNUM_GENERIC_PC,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"cpsr",
     "psr",
     4,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, arm64_dwarf::cpsr, LLDB_REGNUM_GENERIC_FLAGS,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},

    {"v0",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v0, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v1",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v1, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v2",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v2, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v3",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v3, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v4",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v4, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v5",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v5, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v6",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v6, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v7",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v7, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v8",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v8, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v9",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v9, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v10",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v10, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v11",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v11, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v12",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v12, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v13",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v13, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v14",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v14, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v15",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v15, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v16",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v16, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v17",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v17, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v18",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v18, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v19",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v19, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v20",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v20, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v21",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v21, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v22",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v22, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v23",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v23, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v24",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v24, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v25",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v25, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v26",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v26, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v27",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v27, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v28",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v28, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v29",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v29, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v30",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v30, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"v31",
     nullptr,
     16,
     0,
     eEncodingVector,
     eFormatVectorOfUInt8,
     {LLDB_INVALID_REGNUM, arm64_dwarf::v31, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},

    {"fpsr",
     nullptr,
     4,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"fpcr",
     nullptr,
     4,
     0,
     eEncodingUint,
     eFormatHex,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},

    {"s0",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s1",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s2",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s3",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s4",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s5",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s6",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s7",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s8",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s9",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s10",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s11",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s12",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s13",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s14",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s15",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s16",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s17",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s18",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s19",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s20",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s21",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s22",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s23",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s24",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s25",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s26",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s27",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s28",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s29",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s30",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"s31",
     nullptr,
     4,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},

    {"d0",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d1",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d2",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d3",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d4",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d5",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d6",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d7",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d8",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d9",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d10",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d11",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d12",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d13",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d14",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d15",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d16",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d17",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d18",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d19",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d20",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d21",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d22",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d23",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d24",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d25",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d26",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d27",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d28",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d29",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d30",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0},
    {"d31",
     nullptr,
     8,
     0,
     eEncodingIEEE754,
     eFormatFloat,
     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
     nullptr,
     nullptr,
     nullptr,
     0}};

static const uint32_t k_num_register_infos =
    llvm::array_lengthof(g_register_infos);
static bool g_register_info_names_constified = false;

const lldb_private::RegisterInfo *
ABISysV_arm64::GetRegisterInfoArray(uint32_t &count) {
  // Make the C-string names and alt_names for the register infos into const
  // C-string values by having the ConstString unique the names in the global
  // constant C-string pool.
  if (!g_register_info_names_constified) {
    g_register_info_names_constified = true;
    for (uint32_t i = 0; i < k_num_register_infos; ++i) {
      if (g_register_infos[i].name)
        g_register_infos[i].name =
            ConstString(g_register_infos[i].name).GetCString();
      if (g_register_infos[i].alt_name)
        g_register_infos[i].alt_name =
            ConstString(g_register_infos[i].alt_name).GetCString();
    }
  }
  count = k_num_register_infos;
  return g_register_infos;
}

bool ABISysV_arm64::GetPointerReturnRegister(const char *&name) {
  name = "x0";
  return true;
}

size_t ABISysV_arm64::GetRedZoneSize() const { return 128; }

//------------------------------------------------------------------
// Static Functions
//------------------------------------------------------------------

ABISP
ABISysV_arm64::CreateInstance(lldb::ProcessSP process_sp, const ArchSpec &arch) {
  static ABISP g_abi_sp;
  const llvm::Triple::ArchType arch_type = arch.GetTriple().getArch();
  const llvm::Triple::VendorType vendor_type = arch.GetTriple().getVendor();

  if (vendor_type != llvm::Triple::Apple) {
    if (arch_type == llvm::Triple::aarch64) {
      if (!g_abi_sp)
        g_abi_sp.reset(new ABISysV_arm64(process_sp));
      return g_abi_sp;
    }
  }

  return ABISP();
}

bool ABISysV_arm64::PrepareTrivialCall(Thread &thread, addr_t sp,
                                       addr_t func_addr, addr_t return_addr,
                                       llvm::ArrayRef<addr_t> args) const {
  RegisterContext *reg_ctx = thread.GetRegisterContext().get();
  if (!reg_ctx)
    return false;

  Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));

  if (log) {
    StreamString s;
    s.Printf("ABISysV_arm64::PrepareTrivialCall (tid = 0x%" PRIx64
             ", sp = 0x%" PRIx64 ", func_addr = 0x%" PRIx64
             ", return_addr = 0x%" PRIx64,
             thread.GetID(), (uint64_t)sp, (uint64_t)func_addr,
             (uint64_t)return_addr);

    for (size_t i = 0; i < args.size(); ++i)
      s.Printf(", arg%d = 0x%" PRIx64, static_cast<int>(i + 1), args[i]);
    s.PutCString(")");
    log->PutString(s.GetString());
  }

  // x0 - x7 contain first 8 simple args
  if (args.size() > 8)
    return false;

  for (size_t i = 0; i < args.size(); ++i) {
    const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo(
        eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + i);
    if (log)
      log->Printf("About to write arg%d (0x%" PRIx64 ") into %s",
                  static_cast<int>(i + 1), args[i], reg_info->name);
    if (!reg_ctx->WriteRegisterFromUnsigned(reg_info, args[i]))
      return false;
  }

  // Set "lr" to the return address
  if (!reg_ctx->WriteRegisterFromUnsigned(
          reg_ctx->GetRegisterInfo(eRegisterKindGeneric,
                                   LLDB_REGNUM_GENERIC_RA),
          return_addr))
    return false;

  // Set "sp" to the requested value
  if (!reg_ctx->WriteRegisterFromUnsigned(
          reg_ctx->GetRegisterInfo(eRegisterKindGeneric,
                                   LLDB_REGNUM_GENERIC_SP),
          sp))
    return false;

  // Set "pc" to the address requested
  if (!reg_ctx->WriteRegisterFromUnsigned(
          reg_ctx->GetRegisterInfo(eRegisterKindGeneric,
                                   LLDB_REGNUM_GENERIC_PC),
          func_addr))
    return false;

  return true;
}

// TODO: We dont support fp/SIMD arguments in v0-v7
bool ABISysV_arm64::GetArgumentValues(Thread &thread, ValueList &values) const {
  uint32_t num_values = values.GetSize();

  ExecutionContext exe_ctx(thread.shared_from_this());

  // Extract the register context so we can read arguments from registers

  RegisterContext *reg_ctx = thread.GetRegisterContext().get();

  if (!reg_ctx)
    return false;

  addr_t sp = 0;

  for (uint32_t value_idx = 0; value_idx < num_values; ++value_idx) {
    // We currently only support extracting values with Clang QualTypes. Do we
    // care about others?
    Value *value = values.GetValueAtIndex(value_idx);

    if (!value)
      return false;

    CompilerType value_type = value->GetCompilerType();
    if (value_type) {
      bool is_signed = false;
      size_t bit_width = 0;
      if (value_type.IsIntegerOrEnumerationType(is_signed)) {
        bit_width = value_type.GetBitSize(&thread);
      } else if (value_type.IsPointerOrReferenceType()) {
        bit_width = value_type.GetBitSize(&thread);
      } else {
        // We only handle integer, pointer and reference types currently...
        return false;
      }

      if (bit_width <= (exe_ctx.GetProcessRef().GetAddressByteSize() * 8)) {
        if (value_idx < 8) {
          // Arguments 1-8 are in x0-x7...
          const RegisterInfo *reg_info = nullptr;
          reg_info = reg_ctx->GetRegisterInfo(
              eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + value_idx);

          if (reg_info) {
            RegisterValue reg_value;

            if (reg_ctx->ReadRegister(reg_info, reg_value)) {
              if (is_signed)
                reg_value.SignExtend(bit_width);
              if (!reg_value.GetScalarValue(value->GetScalar()))
                return false;
              continue;
            }
          }
          return false;
        } else {
          // TODO: Verify for stack layout for SysV
          if (sp == 0) {
            // Read the stack pointer if we already haven't read it
            sp = reg_ctx->GetSP(0);
            if (sp == 0)
              return false;
          }

          // Arguments 5 on up are on the stack
          const uint32_t arg_byte_size = (bit_width + (8 - 1)) / 8;
          Status error;
          if (!exe_ctx.GetProcessRef().ReadScalarIntegerFromMemory(
                  sp, arg_byte_size, is_signed, value->GetScalar(), error))
            return false;

          sp += arg_byte_size;
          // Align up to the next 8 byte boundary if needed
          if (sp % 8) {
            sp >>= 3;
            sp += 1;
            sp <<= 3;
          }
        }
      }
    }
  }
  return true;
}

Status ABISysV_arm64::SetReturnValueObject(lldb::StackFrameSP &frame_sp,
                                           lldb::ValueObjectSP &new_value_sp) {
  Status error;
  if (!new_value_sp) {
    error.SetErrorString("Empty value object for return value.");
    return error;
  }

  CompilerType return_value_type = new_value_sp->GetCompilerType();
  if (!return_value_type) {
    error.SetErrorString("Null clang type for return value.");
    return error;
  }

  Thread *thread = frame_sp->GetThread().get();

  RegisterContext *reg_ctx = thread->GetRegisterContext().get();

  if (reg_ctx) {
    DataExtractor data;
    Status data_error;
    const uint64_t byte_size = new_value_sp->GetData(data, data_error);
    if (data_error.Fail()) {
      error.SetErrorStringWithFormat(
          "Couldn't convert return value to raw data: %s",
          data_error.AsCString());
      return error;
    }

    const uint32_t type_flags = return_value_type.GetTypeInfo(nullptr);
    if (type_flags & eTypeIsScalar || type_flags & eTypeIsPointer) {
      if (type_flags & eTypeIsInteger || type_flags & eTypeIsPointer) {
        // Extract the register context so we can read arguments from registers
        lldb::offset_t offset = 0;
        if (byte_size <= 16) {
          const RegisterInfo *x0_info = reg_ctx->GetRegisterInfo(
              eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1);
          if (byte_size <= 8) {
            uint64_t raw_value = data.GetMaxU64(&offset, byte_size);

            if (!reg_ctx->WriteRegisterFromUnsigned(x0_info, raw_value))
              error.SetErrorString("failed to write register x0");
          } else {
            uint64_t raw_value = data.GetMaxU64(&offset, 8);

            if (reg_ctx->WriteRegisterFromUnsigned(x0_info, raw_value)) {
              const RegisterInfo *x1_info = reg_ctx->GetRegisterInfo(
                  eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG2);
              raw_value = data.GetMaxU64(&offset, byte_size - offset);

              if (!reg_ctx->WriteRegisterFromUnsigned(x1_info, raw_value))
                error.SetErrorString("failed to write register x1");
            }
          }
        } else {
          error.SetErrorString("We don't support returning longer than 128 bit "
                               "integer values at present.");
        }
      } else if (type_flags & eTypeIsFloat) {
        if (type_flags & eTypeIsComplex) {
          // Don't handle complex yet.
          error.SetErrorString(
              "returning complex float values are not supported");
        } else {
          const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0);

          if (v0_info) {
            if (byte_size <= 16) {
              if (byte_size <= RegisterValue::GetMaxByteSize()) {
                RegisterValue reg_value;
                error = reg_value.SetValueFromData(v0_info, data, 0, true);
                if (error.Success()) {
                  if (!reg_ctx->WriteRegister(v0_info, reg_value))
                    error.SetErrorString("failed to write register v0");
                }
              } else {
                error.SetErrorStringWithFormat(
                    "returning float values with a byte size of %" PRIu64
                    " are not supported",
                    byte_size);
              }
            } else {
              error.SetErrorString("returning float values longer than 128 "
                                   "bits are not supported");
            }
          } else {
            error.SetErrorString("v0 register is not available on this target");
          }
        }
      }
    } else if (type_flags & eTypeIsVector) {
      if (byte_size > 0) {
        const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0);

        if (v0_info) {
          if (byte_size <= v0_info->byte_size) {
            RegisterValue reg_value;
            error = reg_value.SetValueFromData(v0_info, data, 0, true);
            if (error.Success()) {
              if (!reg_ctx->WriteRegister(v0_info, reg_value))
                error.SetErrorString("failed to write register v0");
            }
          }
        }
      }
    }
  } else {
    error.SetErrorString("no registers are available");
  }

  return error;
}

bool ABISysV_arm64::CreateFunctionEntryUnwindPlan(UnwindPlan &unwind_plan) {
  unwind_plan.Clear();
  unwind_plan.SetRegisterKind(eRegisterKindDWARF);

  uint32_t lr_reg_num = arm64_dwarf::lr;
  uint32_t sp_reg_num = arm64_dwarf::sp;

  UnwindPlan::RowSP row(new UnwindPlan::Row);

  // Our previous Call Frame Address is the stack pointer
  row->GetCFAValue().SetIsRegisterPlusOffset(sp_reg_num, 0);

  unwind_plan.AppendRow(row);
  unwind_plan.SetReturnAddressRegister(lr_reg_num);

  // All other registers are the same.

  unwind_plan.SetSourceName("arm64 at-func-entry default");
  unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
  unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);

  return true;
}

bool ABISysV_arm64::CreateDefaultUnwindPlan(UnwindPlan &unwind_plan) {
  unwind_plan.Clear();
  unwind_plan.SetRegisterKind(eRegisterKindDWARF);

  uint32_t fp_reg_num = arm64_dwarf::fp;
  uint32_t pc_reg_num = arm64_dwarf::pc;

  UnwindPlan::RowSP row(new UnwindPlan::Row);
  const int32_t ptr_size = 8;

  row->GetCFAValue().SetIsRegisterPlusOffset(fp_reg_num, 2 * ptr_size);
  row->SetOffset(0);

  row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, ptr_size * -2, true);
  row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * -1, true);

  unwind_plan.AppendRow(row);
  unwind_plan.SetSourceName("arm64 default unwind plan");
  unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
  unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);

  return true;
}

// AAPCS64 (Procedure Call Standard for the ARM 64-bit Architecture) says
// registers x19 through x28 and sp are callee preserved. v8-v15 are non-
// volatile (and specifically only the lower 8 bytes of these regs), the rest
// of the fp/SIMD registers are volatile.

// We treat x29 as callee preserved also, else the unwinder won't try to
// retrieve fp saves.

bool ABISysV_arm64::RegisterIsVolatile(const RegisterInfo *reg_info) {
  if (reg_info) {
    const char *name = reg_info->name;

    // Sometimes we'll be called with the "alternate" name for these registers;
    // recognize them as non-volatile.

    if (name[0] == 'p' && name[1] == 'c') // pc
      return false;
    if (name[0] == 'f' && name[1] == 'p') // fp
      return false;
    if (name[0] == 's' && name[1] == 'p') // sp
      return false;
    if (name[0] == 'l' && name[1] == 'r') // lr
      return false;

    if (name[0] == 'x' || name[0] == 'r') {
      // Volatile registers: x0-x18
      // Although documentation says only x19-28 + sp are callee saved We ll
      // also have to treat x30 as non-volatile. Each dwarf frame has its own
      // value of lr. Return false for the non-volatile gpr regs, true for
      // everything else
      switch (name[1]) {
      case '1':
        switch (name[2]) {
        case '9':
          return false; // x19 is non-volatile
        default:
          return true;
        }
        break;
      case '2':
        switch (name[2]) {
        case '0':
        case '1':
        case '2':
        case '3':
        case '4':
        case '5':
        case '6':
        case '7':
        case '8':
          return false; // x20 - 28 are non-volatile
        case '9':
          return false; // x29 aka fp treat as non-volatile
        default:
          return true;
        }
      case '3': // x30 (lr) and x31 (sp) treat as non-volatile
        if (name[2] == '0' || name[2] == '1')
          return false;
        break;
      default:
        return true; // all volatile cases not handled above fall here.
      }
    } else if (name[0] == 'v' || name[0] == 's' || name[0] == 'd') {
      // Volatile registers: v0-7, v16-v31
      // Return false for non-volatile fp/SIMD regs, true for everything else
      switch (name[1]) {
      case '8':
      case '9':
        return false; // v8-v9 are non-volatile
      case '1':
        switch (name[2]) {
        case '0':
        case '1':
        case '2':
        case '3':
        case '4':
        case '5':
          return false; // v10-v15 are non-volatile
        default:
          return true;
        }
      default:
        return true;
      }
    }
  }
  return true;
}

static bool LoadValueFromConsecutiveGPRRegisters(
    ExecutionContext &exe_ctx, RegisterContext *reg_ctx,
    const CompilerType &value_type,
    bool is_return_value, // false => parameter, true => return value
    uint32_t &NGRN,       // NGRN (see ABI documentation)
    uint32_t &NSRN,       // NSRN (see ABI documentation)
    DataExtractor &data) {
  const size_t byte_size = value_type.GetByteSize(nullptr);

  if (byte_size == 0)
    return false;

  std::unique_ptr<DataBufferHeap> heap_data_ap(
      new DataBufferHeap(byte_size, 0));
  const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder();
  Status error;

  CompilerType base_type;
  const uint32_t homogeneous_count =
      value_type.IsHomogeneousAggregate(&base_type);
  if (homogeneous_count > 0 && homogeneous_count <= 8) {
    // Make sure we have enough registers
    if (NSRN < 8 && (8 - NSRN) >= homogeneous_count) {
      if (!base_type)
        return false;
      const size_t base_byte_size = base_type.GetByteSize(nullptr);
      uint32_t data_offset = 0;

      for (uint32_t i = 0; i < homogeneous_count; ++i) {
        char v_name[8];
        ::snprintf(v_name, sizeof(v_name), "v%u", NSRN);
        const RegisterInfo *reg_info =
            reg_ctx->GetRegisterInfoByName(v_name, 0);
        if (reg_info == nullptr)
          return false;

        if (base_byte_size > reg_info->byte_size)
          return false;

        RegisterValue reg_value;

        if (!reg_ctx->ReadRegister(reg_info, reg_value))
          return false;

        // Make sure we have enough room in "heap_data_ap"
        if ((data_offset + base_byte_size) <= heap_data_ap->GetByteSize()) {
          const size_t bytes_copied = reg_value.GetAsMemoryData(
              reg_info, heap_data_ap->GetBytes() + data_offset, base_byte_size,
              byte_order, error);
          if (bytes_copied != base_byte_size)
            return false;
          data_offset += bytes_copied;
          ++NSRN;
        } else
          return false;
      }
      data.SetByteOrder(byte_order);
      data.SetAddressByteSize(exe_ctx.GetProcessRef().GetAddressByteSize());
      data.SetData(DataBufferSP(heap_data_ap.release()));
      return true;
    }
  }

  const size_t max_reg_byte_size = 16;
  if (byte_size <= max_reg_byte_size) {
    size_t bytes_left = byte_size;
    uint32_t data_offset = 0;
    while (data_offset < byte_size) {
      if (NGRN >= 8)
        return false;

      const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo(
          eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + NGRN);
      if (reg_info == nullptr)
        return false;

      RegisterValue reg_value;

      if (!reg_ctx->ReadRegister(reg_info, reg_value))
        return false;

      const size_t curr_byte_size = std::min<size_t>(8, bytes_left);
      const size_t bytes_copied = reg_value.GetAsMemoryData(
          reg_info, heap_data_ap->GetBytes() + data_offset, curr_byte_size,
          byte_order, error);
      if (bytes_copied == 0)
        return false;
      if (bytes_copied >= bytes_left)
        break;
      data_offset += bytes_copied;
      bytes_left -= bytes_copied;
      ++NGRN;
    }
  } else {
    const RegisterInfo *reg_info = nullptr;
    if (is_return_value) {
      // We are assuming we are decoding this immediately after returning from
      // a function call and that the address of the structure is in x8
      reg_info = reg_ctx->GetRegisterInfoByName("x8", 0);
    } else {
      // We are assuming we are stopped at the first instruction in a function
      // and that the ABI is being respected so all parameters appear where
      // they should be (functions with no external linkage can legally violate
      // the ABI).
      if (NGRN >= 8)
        return false;

      reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric,
                                          LLDB_REGNUM_GENERIC_ARG1 + NGRN);
      if (reg_info == nullptr)
        return false;
      ++NGRN;
    }

    if (reg_info == nullptr)
      return false;

    const lldb::addr_t value_addr =
        reg_ctx->ReadRegisterAsUnsigned(reg_info, LLDB_INVALID_ADDRESS);

    if (value_addr == LLDB_INVALID_ADDRESS)
      return false;

    if (exe_ctx.GetProcessRef().ReadMemory(
            value_addr, heap_data_ap->GetBytes(), heap_data_ap->GetByteSize(),
            error) != heap_data_ap->GetByteSize()) {
      return false;
    }
  }

  data.SetByteOrder(byte_order);
  data.SetAddressByteSize(exe_ctx.GetProcessRef().GetAddressByteSize());
  data.SetData(DataBufferSP(heap_data_ap.release()));
  return true;
}

ValueObjectSP ABISysV_arm64::GetReturnValueObjectImpl(
    Thread &thread, CompilerType &return_compiler_type) const {
  ValueObjectSP return_valobj_sp;
  Value value;

  ExecutionContext exe_ctx(thread.shared_from_this());
  if (exe_ctx.GetTargetPtr() == nullptr || exe_ctx.GetProcessPtr() == nullptr)
    return return_valobj_sp;

  // value.SetContext (Value::eContextTypeClangType, return_compiler_type);
  value.SetCompilerType(return_compiler_type);

  RegisterContext *reg_ctx = thread.GetRegisterContext().get();
  if (!reg_ctx)
    return return_valobj_sp;

  const size_t byte_size = return_compiler_type.GetByteSize(nullptr);

  const uint32_t type_flags = return_compiler_type.GetTypeInfo(nullptr);
  if (type_flags & eTypeIsScalar || type_flags & eTypeIsPointer) {
    value.SetValueType(Value::eValueTypeScalar);

    bool success = false;
    if (type_flags & eTypeIsInteger || type_flags & eTypeIsPointer) {
      // Extract the register context so we can read arguments from registers
      if (byte_size <= 8) {
        const RegisterInfo *x0_reg_info = nullptr;
        x0_reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric,
                                               LLDB_REGNUM_GENERIC_ARG1);
        if (x0_reg_info) {
          uint64_t raw_value =
              thread.GetRegisterContext()->ReadRegisterAsUnsigned(x0_reg_info,
                                                                  0);
          const bool is_signed = (type_flags & eTypeIsSigned) != 0;
          switch (byte_size) {
          default:
            break;
          case 16: // uint128_t
            // In register x0 and x1
            {
              const RegisterInfo *x1_reg_info = nullptr;
              x1_reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric,
                                                     LLDB_REGNUM_GENERIC_ARG2);

              if (x1_reg_info) {
                if (byte_size <=
                    x0_reg_info->byte_size + x1_reg_info->byte_size) {
                  std::unique_ptr<DataBufferHeap> heap_data_ap(
                      new DataBufferHeap(byte_size, 0));
                  const ByteOrder byte_order =
                      exe_ctx.GetProcessRef().GetByteOrder();
                  RegisterValue x0_reg_value;
                  RegisterValue x1_reg_value;
                  if (reg_ctx->ReadRegister(x0_reg_info, x0_reg_value) &&
                      reg_ctx->ReadRegister(x1_reg_info, x1_reg_value)) {
                    Status error;
                    if (x0_reg_value.GetAsMemoryData(
                            x0_reg_info, heap_data_ap->GetBytes() + 0, 8,
                            byte_order, error) &&
                        x1_reg_value.GetAsMemoryData(
                            x1_reg_info, heap_data_ap->GetBytes() + 8, 8,
                            byte_order, error)) {
                      DataExtractor data(
                          DataBufferSP(heap_data_ap.release()), byte_order,
                          exe_ctx.GetProcessRef().GetAddressByteSize());

                      return_valobj_sp = ValueObjectConstResult::Create(
                          &thread, return_compiler_type, ConstString(""), data);
                      return return_valobj_sp;
                    }
                  }
                }
              }
            }
            break;
          case sizeof(uint64_t):
            if (is_signed)
              value.GetScalar() = (int64_t)(raw_value);
            else
              value.GetScalar() = (uint64_t)(raw_value);
            success = true;
            break;

          case sizeof(uint32_t):
            if (is_signed)
              value.GetScalar() = (int32_t)(raw_value & UINT32_MAX);
            else
              value.GetScalar() = (uint32_t)(raw_value & UINT32_MAX);
            success = true;
            break;

          case sizeof(uint16_t):
            if (is_signed)
              value.GetScalar() = (int16_t)(raw_value & UINT16_MAX);
            else
              value.GetScalar() = (uint16_t)(raw_value & UINT16_MAX);
            success = true;
            break;

          case sizeof(uint8_t):
            if (is_signed)
              value.GetScalar() = (int8_t)(raw_value & UINT8_MAX);
            else
              value.GetScalar() = (uint8_t)(raw_value & UINT8_MAX);
            success = true;
            break;
          }
        }
      }
    } else if (type_flags & eTypeIsFloat) {
      if (type_flags & eTypeIsComplex) {
        // Don't handle complex yet.
      } else {
        if (byte_size <= sizeof(long double)) {
          const RegisterInfo *v0_reg_info =
              reg_ctx->GetRegisterInfoByName("v0", 0);
          RegisterValue v0_value;
          if (reg_ctx->ReadRegister(v0_reg_info, v0_value)) {
            DataExtractor data;
            if (v0_value.GetData(data)) {
              lldb::offset_t offset = 0;
              if (byte_size == sizeof(float)) {
                value.GetScalar() = data.GetFloat(&offset);
                success = true;
              } else if (byte_size == sizeof(double)) {
                value.GetScalar() = data.GetDouble(&offset);
                success = true;
              } else if (byte_size == sizeof(long double)) {
                value.GetScalar() = data.GetLongDouble(&offset);
                success = true;
              }
            }
          }
        }
      }
    }

    if (success)
      return_valobj_sp = ValueObjectConstResult::Create(
          thread.GetStackFrameAtIndex(0).get(), value, ConstString(""));
  } else if (type_flags & eTypeIsVector && byte_size <= 16) {
    if (byte_size > 0) {
      const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0);

      if (v0_info) {
        std::unique_ptr<DataBufferHeap> heap_data_ap(
            new DataBufferHeap(byte_size, 0));
        const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder();
        RegisterValue reg_value;
        if (reg_ctx->ReadRegister(v0_info, reg_value)) {
          Status error;
          if (reg_value.GetAsMemoryData(v0_info, heap_data_ap->GetBytes(),
                                        heap_data_ap->GetByteSize(), byte_order,
                                        error)) {
            DataExtractor data(DataBufferSP(heap_data_ap.release()), byte_order,
                               exe_ctx.GetProcessRef().GetAddressByteSize());
            return_valobj_sp = ValueObjectConstResult::Create(
                &thread, return_compiler_type, ConstString(""), data);
          }
        }
      }
    }
  } else if (type_flags & eTypeIsStructUnion || type_flags & eTypeIsClass ||
             (type_flags & eTypeIsVector && byte_size > 16)) {
    DataExtractor data;

    uint32_t NGRN = 0; // Search ABI docs for NGRN
    uint32_t NSRN = 0; // Search ABI docs for NSRN
    const bool is_return_value = true;
    if (LoadValueFromConsecutiveGPRRegisters(
            exe_ctx, reg_ctx, return_compiler_type, is_return_value, NGRN, NSRN,
            data)) {
      return_valobj_sp = ValueObjectConstResult::Create(
          &thread, return_compiler_type, ConstString(""), data);
    }
  }
  return return_valobj_sp;
}

void ABISysV_arm64::Initialize() {
  PluginManager::RegisterPlugin(GetPluginNameStatic(),
                                "SysV ABI for AArch64 targets", CreateInstance);
}

void ABISysV_arm64::Terminate() {
  PluginManager::UnregisterPlugin(CreateInstance);
}

lldb_private::ConstString ABISysV_arm64::GetPluginNameStatic() {
  static ConstString g_name("SysV-arm64");
  return g_name;
}

//------------------------------------------------------------------
// PluginInterface protocol
//------------------------------------------------------------------

ConstString ABISysV_arm64::GetPluginName() { return GetPluginNameStatic(); }

uint32_t ABISysV_arm64::GetPluginVersion() { return 1; }