SystemZDisassembler.cpp File Reference

#include "MCTargetDesc/SystemZMCTargetDesc.h"
#include "TargetInfo/SystemZTargetInfo.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/MCSubtargetInfo.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/MathExtras.h"
#include <cassert>
#include <cstdint>
#include "SystemZGenDisassemblerTables.inc"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "systemz-disassembler"

Functions
static MCDisassembler *	createSystemZDisassembler (const Target &T, const MCSubtargetInfo &STI, MCContext &Ctx)
LLVM_ABI LLVM_EXTERNAL_VISIBILITY void	LLVMInitializeSystemZDisassembler ()
static bool	tryAddingSymbolicOperand (int64_t Value, bool IsBranch, uint64_t Address, uint64_t Offset, uint64_t Width, MCInst &MI, const MCDisassembler *Decoder)
	tryAddingSymbolicOperand - trys to add a symbolic operand in place of the immediate Value in the MCInst.
static DecodeStatus	decodeRegisterClass (MCInst &Inst, uint64_t RegNo, const unsigned *Regs, unsigned Size, bool IsAddr=false)
static DecodeStatus	DecodeGR32BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	DecodeGRH32BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	DecodeGR64BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	DecodeGR128BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	DecodeADDR32BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	DecodeADDR64BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	DecodeFP32BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	DecodeFP64BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	DecodeFP128BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	DecodeVR32BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	DecodeVR64BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	DecodeVR128BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	DecodeAR32BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	DecodeCR64BitRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)
template<unsigned N>
static DecodeStatus	decodeUImmOperand (MCInst &Inst, uint64_t Imm)
template<unsigned N>
static DecodeStatus	decodeSImmOperand (MCInst &Inst, uint64_t Imm)
static DecodeStatus	decodeU1ImmOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodeU2ImmOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodeU3ImmOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodeU4ImmOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodeU8ImmOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodeU12ImmOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodeU16ImmOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodeU32ImmOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodeS8ImmOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodeS16ImmOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodeS20ImmOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodeS32ImmOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
template<unsigned N>
static DecodeStatus	decodeLenOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
template<unsigned N>
static DecodeStatus	decodePCDBLOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, bool isBranch, const MCDisassembler *Decoder)
static DecodeStatus	decodePC12DBLBranchOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodePC16DBLBranchOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodePC24DBLBranchOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodePC32DBLBranchOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	decodePC32DBLOperand (MCInst &Inst, uint64_t Imm, uint64_t Address, const MCDisassembler *Decoder)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "systemz-disassembler"

Definition at line 25 of file SystemZDisassembler.cpp.

Function Documentation

createSystemZDisassembler()

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

static

Definition at line 44 of file SystemZDisassembler.cpp.

References T.

Referenced by LLVMInitializeSystemZDisassembler().

DecodeADDR32BitRegisterClass()

DecodeStatus DecodeADDR32BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 125 of file SystemZDisassembler.cpp.

References decodeRegisterClass(), and llvm::SystemZMC::GR32Regs.

DecodeADDR64BitRegisterClass()

DecodeStatus DecodeADDR64BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 131 of file SystemZDisassembler.cpp.

References decodeRegisterClass(), and llvm::SystemZMC::GR64Regs.

DecodeAR32BitRegisterClass()

DecodeStatus DecodeAR32BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 172 of file SystemZDisassembler.cpp.

References llvm::SystemZMC::AR32Regs, and decodeRegisterClass().

DecodeCR64BitRegisterClass()

DecodeStatus DecodeCR64BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 178 of file SystemZDisassembler.cpp.

References llvm::SystemZMC::CR64Regs, and decodeRegisterClass().

DecodeFP128BitRegisterClass()

DecodeStatus DecodeFP128BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 148 of file SystemZDisassembler.cpp.

References decodeRegisterClass(), and llvm::SystemZMC::FP128Regs.

DecodeFP32BitRegisterClass()

DecodeStatus DecodeFP32BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 136 of file SystemZDisassembler.cpp.

References decodeRegisterClass(), and llvm::SystemZMC::FP32Regs.

DecodeFP64BitRegisterClass()

DecodeStatus DecodeFP64BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 142 of file SystemZDisassembler.cpp.

References decodeRegisterClass(), and llvm::SystemZMC::FP64Regs.

DecodeGR128BitRegisterClass()

DecodeStatus DecodeGR128BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 118 of file SystemZDisassembler.cpp.

References decodeRegisterClass(), and llvm::SystemZMC::GR128Regs.

DecodeGR32BitRegisterClass()

DecodeStatus DecodeGR32BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 100 of file SystemZDisassembler.cpp.

References decodeRegisterClass(), and llvm::SystemZMC::GR32Regs.

DecodeGR64BitRegisterClass()

DecodeStatus DecodeGR64BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 112 of file SystemZDisassembler.cpp.

References decodeRegisterClass(), and llvm::SystemZMC::GR64Regs.

DecodeGRH32BitRegisterClass()

DecodeStatus DecodeGRH32BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 106 of file SystemZDisassembler.cpp.

References decodeRegisterClass(), and llvm::SystemZMC::GRH32Regs.

decodeLenOperand()

template<unsigned N>

DecodeStatus decodeLenOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 273 of file SystemZDisassembler.cpp.

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

decodePC12DBLBranchOperand()

DecodeStatus decodePC12DBLBranchOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 296 of file SystemZDisassembler.cpp.

References decodePCDBLOperand().

decodePC16DBLBranchOperand()

DecodeStatus decodePC16DBLBranchOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 302 of file SystemZDisassembler.cpp.

References decodePCDBLOperand().

decodePC24DBLBranchOperand()

DecodeStatus decodePC24DBLBranchOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 308 of file SystemZDisassembler.cpp.

References decodePCDBLOperand().

decodePC32DBLBranchOperand()

DecodeStatus decodePC32DBLBranchOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 314 of file SystemZDisassembler.cpp.

References decodePCDBLOperand().

decodePC32DBLOperand()

DecodeStatus decodePC32DBLOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 320 of file SystemZDisassembler.cpp.

References decodePCDBLOperand().

decodePCDBLOperand()

template<unsigned N>

DecodeStatus decodePCDBLOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, bool isBranch, const MCDisassembler * Decoder )

static

Definition at line 283 of file SystemZDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), isBranch(), llvm::isUInt(), N, llvm::SignExtend64(), llvm::MCDisassembler::Success, and tryAddingSymbolicOperand().

Referenced by decodePC12DBLBranchOperand(), decodePC16DBLBranchOperand(), decodePC24DBLBranchOperand(), decodePC32DBLBranchOperand(), and decodePC32DBLOperand().

decodeRegisterClass()

DecodeStatus decodeRegisterClass ( MCInst & Inst, uint64_t RegNo, const unsigned * Regs, unsigned Size, bool IsAddr = false )

static

Definition at line 85 of file SystemZDisassembler.cpp.

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

Referenced by DecodeADDR32BitRegisterClass(), DecodeADDR64BitRegisterClass(), DecodeAR32BitRegisterClass(), DecodeCR64BitRegisterClass(), DecodeFP128BitRegisterClass(), DecodeFP32BitRegisterClass(), DecodeFP64BitRegisterClass(), DecodeGR128BitRegisterClass(), DecodeGR32BitRegisterClass(), DecodeGR64BitRegisterClass(), DecodeGRH32BitRegisterClass(), DecodeVR128BitRegisterClass(), DecodeVR32BitRegisterClass(), and DecodeVR64BitRegisterClass().

decodeS16ImmOperand()

DecodeStatus decodeS16ImmOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 254 of file SystemZDisassembler.cpp.

References decodeSImmOperand().

decodeS20ImmOperand()

DecodeStatus decodeS20ImmOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 260 of file SystemZDisassembler.cpp.

References decodeSImmOperand().

decodeS32ImmOperand()

DecodeStatus decodeS32ImmOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 266 of file SystemZDisassembler.cpp.

References decodeSImmOperand().

decodeS8ImmOperand()

DecodeStatus decodeS8ImmOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 248 of file SystemZDisassembler.cpp.

References decodeSImmOperand().

decodeSImmOperand()

template<unsigned N>

DecodeStatus decodeSImmOperand ( MCInst & Inst, uint64_t Imm )

static

Definition at line 193 of file SystemZDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createImm(), llvm::MCDisassembler::Fail, llvm::isUInt(), llvm::SignExtend64(), and llvm::MCDisassembler::Success.

Referenced by decodeS16ImmOperand(), decodeS20ImmOperand(), decodeS32ImmOperand(), and decodeS8ImmOperand().

decodeU12ImmOperand()

DecodeStatus decodeU12ImmOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 230 of file SystemZDisassembler.cpp.

References decodeUImmOperand().

decodeU16ImmOperand()

DecodeStatus decodeU16ImmOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 236 of file SystemZDisassembler.cpp.

References decodeUImmOperand().

decodeU1ImmOperand()

DecodeStatus decodeU1ImmOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 200 of file SystemZDisassembler.cpp.

References decodeUImmOperand().

decodeU2ImmOperand()

DecodeStatus decodeU2ImmOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 206 of file SystemZDisassembler.cpp.

References decodeUImmOperand().

decodeU32ImmOperand()

DecodeStatus decodeU32ImmOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 242 of file SystemZDisassembler.cpp.

References decodeUImmOperand().

decodeU3ImmOperand()

DecodeStatus decodeU3ImmOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 212 of file SystemZDisassembler.cpp.

References decodeUImmOperand().

decodeU4ImmOperand()

DecodeStatus decodeU4ImmOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 218 of file SystemZDisassembler.cpp.

References decodeUImmOperand().

decodeU8ImmOperand()

DecodeStatus decodeU8ImmOperand ( MCInst & Inst, uint64_t Imm, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 224 of file SystemZDisassembler.cpp.

References decodeUImmOperand().

decodeUImmOperand()

template<unsigned N>

DecodeStatus decodeUImmOperand ( MCInst & Inst, uint64_t Imm )

static

Definition at line 185 of file SystemZDisassembler.cpp.

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

Referenced by decodeU12ImmOperand(), decodeU16ImmOperand(), decodeU1ImmOperand(), decodeU2ImmOperand(), decodeU32ImmOperand(), decodeU3ImmOperand(), decodeU4ImmOperand(), and decodeU8ImmOperand().

DecodeVR128BitRegisterClass()

DecodeStatus DecodeVR128BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 166 of file SystemZDisassembler.cpp.

References decodeRegisterClass(), and llvm::SystemZMC::VR128Regs.

DecodeVR32BitRegisterClass()

DecodeStatus DecodeVR32BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 154 of file SystemZDisassembler.cpp.

References decodeRegisterClass(), and llvm::SystemZMC::VR32Regs.

DecodeVR64BitRegisterClass()

DecodeStatus DecodeVR64BitRegisterClass ( MCInst & Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 160 of file SystemZDisassembler.cpp.

References decodeRegisterClass(), and llvm::SystemZMC::VR64Regs.

LLVMInitializeSystemZDisassembler()

LLVM_ABI LLVM_EXTERNAL_VISIBILITY void LLVMInitializeSystemZDisassembler

(

)

Definition at line 52 of file SystemZDisassembler.cpp.

References createSystemZDisassembler(), llvm::getTheSystemZTarget(), and llvm::TargetRegistry::RegisterMCDisassembler().

tryAddingSymbolicOperand()

bool tryAddingSymbolicOperand ( int64_t Value, bool IsBranch, uint64_t Address, uint64_t Offset, uint64_t Width, MCInst & MI, const MCDisassembler * Decoder )

static

tryAddingSymbolicOperand - trys to add a symbolic operand in place of the immediate Value in the MCInst.

Parameters

Value	- The immediate Value, has had any PC adjustment made by the caller.
isBranch	- If the instruction is a branch instruction
Address	- The starting address of the instruction
Offset	- The byte offset to this immediate in the instruction
Width	- The byte width of this immediate in the instruction

If the getOpInfo() function was set when setupForSymbolicDisassembly() was called then that function is called to get any symbolic information for the immediate in the instruction using the Address, Offset and Width. If that returns non-zero then the symbolic information it returns is used to create an MCExpr and that is added as an operand to the MCInst. If getOpInfo() returns zero and isBranch is true then a symbol look up for immediate Value is done and if a symbol is found an MCExpr is created with that, else an MCExpr with the immediate Value is created. This function returns true if it adds an operand to the MCInst and false otherwise.

Definition at line 77 of file SystemZDisassembler.cpp.

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

Referenced by decodePCDBLOperand().