LLVM 22.0.0git
Classes | Macros | Typedefs | Functions | Variables
XtensaDisassembler.cpp File Reference
#include "MCTargetDesc/XtensaMCTargetDesc.h"
#include "TargetInfo/XtensaTargetInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDecoder.h"
#include "llvm/MC/MCDecoderOps.h"
#include "llvm/MC/MCDisassembler/MCDisassembler.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/Endian.h"
#include "XtensaGenDisassemblerTables.inc"

Go to the source code of this file.

Classes

struct  DecodeRegister
 

Macros

#define DEBUG_TYPE   "Xtensa-disassembler"
 

Typedefs

using DecodeStatus = MCDisassembler::DecodeStatus
 

Functions

static MCDisassembler * createXtensaDisassembler (const Target &T, const MCSubtargetInfo &STI, MCContext &Ctx)
 
LLVM_EXTERNAL_VISIBILITY void LLVMInitializeXtensaDisassembler ()
 
static DecodeStatus DecodeARRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const void *Decoder)
 
static DecodeStatus DecodeMRRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const void *Decoder)
 
static DecodeStatus DecodeMR01RegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const void *Decoder)
 
static DecodeStatus DecodeMR23RegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const void *Decoder)
 
static DecodeStatus DecodeFPRRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const void *Decoder)
 
static DecodeStatus DecodeURRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
 
static DecodeStatus DecodeSRRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
 
static DecodeStatus DecodeBRRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const void *Decoder)
 
static bool tryAddingSymbolicOperand (int64_t Value, bool isBranch, uint64_t Address, uint64_t Offset, uint64_t InstSize, MCInst &MI, const void *Decoder)
 
static DecodeStatus decodeCallOperand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeJumpOperand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeBranchOperand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeLoopOperand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeL32ROperand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeImm8Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeImm8_sh8Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeImm12Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeUimm4Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeUimm5Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeImm1_16Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeImm1n_15Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeImm32n_95Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeImm8n_7Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeImm64n_4nOperand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeEntry_Imm12OpValue (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeShimm1_31Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeB4constOperand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeB4constuOperand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeImm7_22Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeMem8Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeMem16Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeMem32Operand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus decodeMem32nOperand (MCInst &Inst, uint64_t Imm, int64_t Address, const void *Decoder)
 
static DecodeStatus readInstruction16 (ArrayRef< uint8_t > Bytes, uint64_t Address, uint64_t &Size, uint64_t &Insn, bool IsLittleEndian)
 Read two bytes from the ArrayRef and return 16 bit data sorted according to the given endianness.
 
static DecodeStatus readInstruction24 (ArrayRef< uint8_t > Bytes, uint64_t Address, uint64_t &Size, uint64_t &Insn, bool IsLittleEndian)
 Read three bytes from the ArrayRef and return 24 bit data.
 

Variables

const MCPhysReg ARDecoderTable []
 
const DecodeRegister SRDecoderTable []
 
static int64_t TableB4const [16]
 
static int64_t TableB4constu [16]
 

Macro Definition Documentation

◆ DEBUG_TYPE

#define DEBUG_TYPE   "Xtensa-disassembler"

Definition at line 29 of file XtensaDisassembler.cpp.

Typedef Documentation

◆ DecodeStatus

using DecodeStatus = MCDisassembler::DecodeStatus

Definition at line 31 of file XtensaDisassembler.cpp.

Function Documentation

◆ createXtensaDisassembler()

static MCDisassembler * createXtensaDisassembler ( const Target &  T,
const MCSubtargetInfo &  STI,
MCContext &  Ctx 
)
static

Definition at line 50 of file XtensaDisassembler.cpp.

Referenced by LLVMInitializeXtensaDisassembler().

◆ DecodeARRegisterClass()

static DecodeStatus DecodeARRegisterClass ( MCInst &  Inst,
uint64_t  RegNo,
uint64_t  Address,
const void *  Decoder 
)
static

Definition at line 66 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), ARDecoderTable, llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, and llvm::MCDisassembler::Success.

Referenced by decodeMem16Operand(), decodeMem32nOperand(), decodeMem32Operand(), and decodeMem8Operand().

◆ decodeB4constOperand()

static DecodeStatus decodeB4constOperand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 391 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), llvm::MCDisassembler::Success, and TableB4const.

◆ decodeB4constuOperand()

static DecodeStatus decodeB4constuOperand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 401 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), llvm::MCDisassembler::Success, and TableB4constu.

◆ decodeBranchOperand()

static DecodeStatus decodeBranchOperand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 253 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), Address, assert(), llvm::MCOperand::createImm(), llvm::MCInst::getOpcode(), llvm::MCDisassembler::Success, and tryAddingSymbolicOperand().

◆ DecodeBRRegisterClass()

static DecodeStatus DecodeBRRegisterClass ( MCInst &  Inst,
uint64_t  RegNo,
uint64_t  Address,
const void *  Decoder 
)
static

Definition at line 218 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, and llvm::MCDisassembler::Success.

◆ decodeCallOperand()

static DecodeStatus decodeCallOperand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 238 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), Address, assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeEntry_Imm12OpValue()

static DecodeStatus decodeEntry_Imm12OpValue ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 373 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ DecodeFPRRegisterClass()

static DecodeStatus DecodeFPRRegisterClass ( MCInst &  Inst,
uint64_t  RegNo,
uint64_t  Address,
const void *  Decoder 
)
static

Definition at line 110 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, and llvm::MCDisassembler::Success.

◆ decodeImm12Operand()

static DecodeStatus decodeImm12Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 308 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeImm1_16Operand()

static DecodeStatus decodeImm1_16Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 329 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeImm1n_15Operand()

static DecodeStatus decodeImm1n_15Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 336 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeImm32n_95Operand()

static DecodeStatus decodeImm32n_95Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 347 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeImm64n_4nOperand()

static DecodeStatus decodeImm64n_4nOperand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 365 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeImm7_22Operand()

static DecodeStatus decodeImm7_22Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 410 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeImm8_sh8Operand()

static DecodeStatus decodeImm8_sh8Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 300 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeImm8n_7Operand()

static DecodeStatus decodeImm8n_7Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 358 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeImm8Operand()

static DecodeStatus decodeImm8Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 293 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeJumpOperand()

static DecodeStatus decodeJumpOperand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 246 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeL32ROperand()

static DecodeStatus decodeL32ROperand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 284 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), Address, assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeLoopOperand()

static DecodeStatus decodeLoopOperand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 274 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), Address, assert(), llvm::MCOperand::createImm(), llvm::MCDisassembler::Success, and tryAddingSymbolicOperand().

◆ decodeMem16Operand()

static DecodeStatus decodeMem16Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 425 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), Address, assert(), llvm::MCOperand::createImm(), DecodeARRegisterClass(), and llvm::MCDisassembler::Success.

◆ decodeMem32nOperand()

static DecodeStatus decodeMem32nOperand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 441 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), Address, assert(), llvm::MCOperand::createImm(), DecodeARRegisterClass(), and llvm::MCDisassembler::Success.

◆ decodeMem32Operand()

static DecodeStatus decodeMem32Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 433 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), Address, assert(), llvm::MCOperand::createImm(), DecodeARRegisterClass(), and llvm::MCDisassembler::Success.

◆ decodeMem8Operand()

static DecodeStatus decodeMem8Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 417 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), Address, assert(), llvm::MCOperand::createImm(), DecodeARRegisterClass(), and llvm::MCDisassembler::Success.

◆ DecodeMR01RegisterClass()

static DecodeStatus DecodeMR01RegisterClass ( MCInst &  Inst,
uint64_t  RegNo,
uint64_t  Address,
const void *  Decoder 
)
static

Definition at line 88 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, and llvm::MCDisassembler::Success.

◆ DecodeMR23RegisterClass()

static DecodeStatus DecodeMR23RegisterClass ( MCInst &  Inst,
uint64_t  RegNo,
uint64_t  Address,
const void *  Decoder 
)
static

Definition at line 99 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, and llvm::MCDisassembler::Success.

◆ DecodeMRRegisterClass()

static DecodeStatus DecodeMRRegisterClass ( MCInst &  Inst,
uint64_t  RegNo,
uint64_t  Address,
const void *  Decoder 
)
static

Definition at line 77 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, and llvm::MCDisassembler::Success.

◆ decodeShimm1_31Operand()

static DecodeStatus decodeShimm1_31Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 381 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ DecodeSRRegisterClass()

static DecodeStatus DecodeSRRegisterClass ( MCInst &  Inst,
uint64_t  RegNo,
uint64_t  Address,
const MCDisassembler *  Decoder 
)
static

Definition at line 184 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::Xtensa::checkRegister(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, llvm::MCSubtargetInfo::getFeatureBits(), llvm::MCInst::getOpcode(), llvm::MCDisassembler::getSubtargetInfo(), DecodeRegister::Reg, llvm::Xtensa::REGISTER_EXCHANGE, llvm::Xtensa::REGISTER_READ, llvm::Xtensa::REGISTER_WRITE, SRDecoderTable, and llvm::MCDisassembler::Success.

◆ decodeUimm4Operand()

static DecodeStatus decodeUimm4Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 315 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeUimm5Operand()

static DecodeStatus decodeUimm5Operand ( MCInst &  Inst,
uint64_t  Imm,
int64_t  Address,
const void *  Decoder 
)
static

Definition at line 322 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ DecodeURRegisterClass()

static DecodeStatus DecodeURRegisterClass ( MCInst &  Inst,
uint64_t  RegNo,
uint64_t  Address,
const MCDisassembler *  Decoder 
)
static

Definition at line 121 of file XtensaDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::Xtensa::checkRegister(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, llvm::MCSubtargetInfo::getFeatureBits(), llvm::MCInst::getOpcode(), llvm::MCDisassembler::getSubtargetInfo(), llvm::Xtensa::getUserRegister(), MRI, llvm::Xtensa::REGISTER_READ, llvm::Xtensa::REGISTER_WRITE, and llvm::MCDisassembler::Success.

◆ LLVMInitializeXtensaDisassembler()

LLVM_EXTERNAL_VISIBILITY void LLVMInitializeXtensaDisassembler ( )

Definition at line 56 of file XtensaDisassembler.cpp.

References createXtensaDisassembler(), llvm::getTheXtensaTarget(), and llvm::TargetRegistry::RegisterMCDisassembler().

◆ readInstruction16()

static DecodeStatus readInstruction16 ( ArrayRef< uint8_t >  Bytes,
uint64_t  Address,
uint64_t &  Size,
uint64_t &  Insn,
bool  IsLittleEndian 
)
static

Read two bytes from the ArrayRef and return 16 bit data sorted according to the given endianness.

Definition at line 451 of file XtensaDisassembler.cpp.

References llvm::MCDisassembler::Fail, llvm::report_fatal_error(), llvm::ArrayRef< T >::size(), Size, and llvm::MCDisassembler::Success.

◆ readInstruction24()

static DecodeStatus readInstruction24 ( ArrayRef< uint8_t >  Bytes,
uint64_t  Address,
uint64_t &  Size,
uint64_t &  Insn,
bool  IsLittleEndian 
)
static

Read three bytes from the ArrayRef and return 24 bit data.

Definition at line 470 of file XtensaDisassembler.cpp.

References llvm::MCDisassembler::Fail, llvm::report_fatal_error(), llvm::ArrayRef< T >::size(), Size, and llvm::MCDisassembler::Success.

◆ tryAddingSymbolicOperand()

static bool tryAddingSymbolicOperand ( int64_t  Value,
bool  isBranch,
uint64_t  Address,
uint64_t  Offset,
uint64_t  InstSize,
MCInst &  MI,
const void *  Decoder 
)
static

Definition at line 229 of file XtensaDisassembler.cpp.

References Address, isBranch(), MI, llvm::Offset, and llvm::MCDisassembler::tryAddingSymbolicOperand().

Referenced by decodeBranchOperand(), and decodeLoopOperand().

Variable Documentation

◆ ARDecoderTable

const MCPhysReg ARDecoderTable[]
Initial value:
= {
Xtensa::A0, Xtensa::SP, Xtensa::A2, Xtensa::A3, Xtensa::A4, Xtensa::A5,
Xtensa::A6, Xtensa::A7, Xtensa::A8, Xtensa::A9, Xtensa::A10, Xtensa::A11,
Xtensa::A12, Xtensa::A13, Xtensa::A14, Xtensa::A15}

Definition at line 61 of file XtensaDisassembler.cpp.

Referenced by DecodeARRegisterClass().

◆ SRDecoderTable

const DecodeRegister SRDecoderTable[]

Definition at line 148 of file XtensaDisassembler.cpp.

Referenced by DecodeSRRegisterClass().

◆ TableB4const

int64_t TableB4const[16]
static
Initial value:
= {-1, 1, 2, 3, 4, 5, 6, 7,
8, 10, 12, 16, 32, 64, 128, 256}

Definition at line 389 of file XtensaDisassembler.cpp.

Referenced by decodeB4constOperand().

◆ TableB4constu

int64_t TableB4constu[16]
static
Initial value:
= {32768, 65536, 2, 3, 4, 5, 6, 7,
8, 10, 12, 16, 32, 64, 128, 256}

Definition at line 399 of file XtensaDisassembler.cpp.

Referenced by decodeB4constuOperand().

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