llvm::MCOperandInfo Class Reference

This holds information about one operand of a machine instruction, indicating the register class for register operands, etc. More...

#include "llvm/MC/MCInstrDesc.h"

Collaboration diagram for llvm::MCOperandInfo:

Public Member Functions
bool	isLookupPtrRegClass () const
	Set if this operand is a pointer value and it requires a callback to look up its register class. More...
bool	isPredicate () const
	Set if this is one of the operands that made up of the predicate operand that controls an isPredicable() instruction. More...
bool	isOptionalDef () const
	Set if this operand is a optional def. More...
bool	isGenericType () const
unsigned	getGenericTypeIndex () const

Public Attributes
int16_t	RegClass
	This specifies the register class enumeration of the operand if the operand is a register. More...
uint8_t	Flags
	These are flags from the MCOI::OperandFlags enum. More...
uint8_t	OperandType
	Information about the type of the operand. More...
uint32_t	Constraints
	The lower 16 bits are used to specify which constraints are set. More...

Detailed Description

This holds information about one operand of a machine instruction, indicating the register class for register operands, etc.

Definition at line 67 of file MCInstrDesc.h.

Member Function Documentation

getGenericTypeIndex()

unsigned llvm::MCOperandInfo::getGenericTypeIndex ( ) const

inline

Definition at line 103 of file MCInstrDesc.h.

References assert(), and llvm::MCOI::OPERAND_FIRST_GENERIC.

Referenced by llvm::LegalizerInfo::getAction(), and matchPair().

isGenericType()

bool llvm::MCOperandInfo::isGenericType ( ) const

inline

Definition at line 98 of file MCInstrDesc.h.

References llvm::MCOI::OPERAND_FIRST_GENERIC, and llvm::MCOI::OPERAND_LAST_GENERIC.

Referenced by matchPair(), and llvm::LegalizerInfo::verify().

isLookupPtrRegClass()

bool llvm::MCOperandInfo::isLookupPtrRegClass ( ) const

inline

Set if this operand is a pointer value and it requires a callback to look up its register class.

Definition at line 87 of file MCInstrDesc.h.

References llvm::MCOI::LookupPtrRegClass.

Referenced by llvm::TargetInstrInfo::getRegClass().

isOptionalDef()

bool llvm::MCOperandInfo::isOptionalDef ( ) const

inline

Set if this operand is a optional def.

Definition at line 96 of file MCInstrDesc.h.

References llvm::MCOI::OptionalDef.

Referenced by llvm::TargetSchedModel::computeOperandLatency(), getRealVLDOpcode(), matchPair(), and VerifyLowRegs().

isPredicate()

bool llvm::MCOperandInfo::isPredicate ( ) const

inline

Set if this is one of the operands that made up of the predicate operand that controls an isPredicable() instruction.

Definition at line 93 of file MCInstrDesc.h.

References llvm::MCOI::Predicate.

Referenced by llvm::MachineInstr::findFirstPredOperandIdx(), and VerifyLowRegs().

Member Data Documentation

Constraints

uint32_t llvm::MCOperandInfo::Constraints

The lower 16 bits are used to specify which constraints are set.

The higher 16 bits are used to specify the value of constraints (4 bits each).

Definition at line 83 of file MCInstrDesc.h.

Referenced by llvm::MCInstrDesc::getOperandConstraint().

Flags

uint8_t llvm::MCOperandInfo::Flags

These are flags from the MCOI::OperandFlags enum.

Definition at line 76 of file MCInstrDesc.h.

OperandType

uint8_t llvm::MCOperandInfo::OperandType

Information about the type of the operand.

Definition at line 79 of file MCInstrDesc.h.

Referenced by countMCSymbolRefExpr(), getLit64Encoding(), llvm::AMDGPU::getOperandSize(), llvm::SIInstrInfo::getOpSize(), getSpecialRegForName(), llvm::SIInstrInfo::isImmOperandLegal(), llvm::SIInstrInfo::isInlineConstant(), isInlineConstantIfFolded(), llvm::SIInstrInfo::isLiteralConstant(), llvm::SIInstrInfo::isOperandLegal(), isRegOrImmWithInputMods(), llvm::AMDGPU::isSISrcFPOperand(), llvm::AMDGPU::isSISrcInlinableOperand(), llvm::AMDGPU::isSISrcOperand(), llvm::WebAssemblyMCInstLower::Lower(), llvm::WebAssemblyInstPrinter::printInst(), llvm::WebAssemblyInstPrinter::printOperand(), llvm::AMDGPUInstPrinter::printRegOperand(), RewriteP2Align(), and llvm::SIInstrInfo::verifyInstruction().

RegClass

int16_t llvm::MCOperandInfo::RegClass

This specifies the register class enumeration of the operand if the operand is a register.

If isLookupPtrRegClass is set, then this is an index that is passed to TargetRegisterInfo::getPointerRegClass(x) to get a dynamic register class.

Definition at line 73 of file MCInstrDesc.h.

Referenced by addRegsToSet(), AddThumb1SBit(), llvm::createR600ISelDag(), findSingleRegDef(), llvm::SIInstrInfo::getOpRegClass(), llvm::SIInstrInfo::getOpSize(), llvm::AVRInstPrinter::getPrettyRegisterName(), getRealVLDOpcode(), llvm::TargetInstrInfo::getRegClass(), getRegisterWidth(), llvm::AMDGPU::getRegOperandSize(), llvm::SIInstrInfo::isBufferSMRD(), llvm::SIInstrInfo::isImmOperandLegal(), llvm::SIInstrInfo::isLegalRegOperand(), llvm::SIInstrInfo::isOperandLegal(), isRegOrImmWithInputMods(), isUseSafeToFold(), llvm::SIInstrInfo::moveToVALU(), nextReg(), llvm::HexagonMCInstrInfo::predicateInfo(), llvm::AMDGPUInstPrinter::printRegOperand(), llvm::HexagonMCChecker::reportBranchErrors(), and llvm::SIInstrInfo::verifyInstruction().

---

The documentation for this class was generated from the following file:

• include/llvm/MC/MCInstrDesc.h