LLVM: llvm::MCOperandInfo Class Reference

LLVM 20.0.0git

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

#include "llvm/MC/MCInstrDesc.h"

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.

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

bool	isOptionalDef () const
	Set if this operand is a optional def.

bool	isBranchTarget () const
	Set if this operand is a branch target.

bool	isGenericType () const

unsigned	getGenericTypeIndex () const

bool	isGenericImm () const

unsigned	getGenericImmIndex () const

Public Attributes
int16_t	RegClass
	This specifies the register class enumeration of the operand if the operand is a register.

uint8_t	Flags
	These are flags from the MCOI::OperandFlags enum.

uint8_t	OperandType
	Information about the type of the operand.

uint16_t	Constraints
	Operand constraints (see OperandConstraint enum).

Detailed Description

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

Definition at line 85 of file MCInstrDesc.h.

Member Function Documentation

◆ getGenericImmIndex()

unsigned llvm::MCOperandInfo::getGenericImmIndex ( ) const

inline

Definition at line 133 of file MCInstrDesc.h.

References assert(), isGenericImm(), llvm::MCOI::OPERAND_FIRST_GENERIC_IMM, and OperandType.

◆ getGenericTypeIndex()

unsigned llvm::MCOperandInfo::getGenericTypeIndex ( ) const

inline

Definition at line 123 of file MCInstrDesc.h.

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

◆ isBranchTarget()

bool llvm::MCOperandInfo::isBranchTarget ( ) const

inline

Set if this operand is a branch target.

Definition at line 116 of file MCInstrDesc.h.

References llvm::MCOI::BranchTarget, and Flags.

◆ isGenericImm()

bool llvm::MCOperandInfo::isGenericImm ( ) const

inline

Definition at line 128 of file MCInstrDesc.h.

References llvm::MCOI::OPERAND_FIRST_GENERIC_IMM, llvm::MCOI::OPERAND_LAST_GENERIC_IMM, and OperandType.

Referenced by getGenericImmIndex().

◆ isGenericType()

bool llvm::MCOperandInfo::isGenericType ( ) const

inline

Definition at line 118 of file MCInstrDesc.h.

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

Referenced by getGenericTypeIndex().

◆ 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 104 of file MCInstrDesc.h.

References Flags, and llvm::MCOI::LookupPtrRegClass.

Referenced by llvm::PPCInstrInfo::onlyFoldImmediate().

◆ isOptionalDef()

bool llvm::MCOperandInfo::isOptionalDef ( ) const

inline

Set if this operand is a optional def.

Definition at line 113 of file MCInstrDesc.h.

References Flags, and llvm::MCOI::OptionalDef.

◆ 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 110 of file MCInstrDesc.h.

References Flags, and llvm::MCOI::Predicate.

Member Data Documentation

◆ Constraints

uint16_t llvm::MCOperandInfo::Constraints

Operand constraints (see OperandConstraint enum).

Definition at line 100 of file MCInstrDesc.h.

Referenced by llvm::PPCInstrInfo::onlyFoldImmediate().

◆ Flags

uint8_t llvm::MCOperandInfo::Flags

These are flags from the MCOI::OperandFlags enum.

Definition at line 94 of file MCInstrDesc.h.

Referenced by isBranchTarget(), isLookupPtrRegClass(), isOptionalDef(), and isPredicate().

◆ OperandType

uint8_t llvm::MCOperandInfo::OperandType

Information about the type of the operand.

Definition at line 97 of file MCInstrDesc.h.

Referenced by llvm::SystemZInstrInfo::foldMemoryOperandImpl(), getGenericImmIndex(), getGenericTypeIndex(), llvm::AMDGPU::getOperandSize(), llvm::SIInstrInfo::getOpSize(), isGenericImm(), isGenericType(), llvm::SIInstrInfo::isImmOperandLegal(), llvm::SIInstrInfo::isInlineConstant(), llvm::SIInstrInfo::isOperandLegal(), needsExpandMemInst(), and llvm::SystemZInstrInfo::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 91 of file MCInstrDesc.h.

Referenced by llvm::SystemZInstrInfo::foldMemoryOperandImpl(), llvm::SIInstrInfo::getOpSize(), llvm::SIInstrInfo::isImmOperandLegal(), llvm::SIInstrInfo::isLegalRegOperand(), llvm::SIInstrInfo::isOperandLegal(), llvm::PPCInstrInfo::onlyFoldImmediate(), and llvm::SystemZInstrInfo::verifyInstruction().

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

include/llvm/MC/MCInstrDesc.h