llvm::RISCVLegalizerInfo Class Reference

#include "Target/RISCV/GISel/RISCVLegalizerInfo.h"

Inheritance diagram for llvm::RISCVLegalizerInfo:

Public Member Functions
	RISCVLegalizerInfo (const RISCVSubtarget &ST)
bool	legalizeCustom (LegalizerHelper &Helper, MachineInstr &MI, LostDebugLocObserver &LocObserver) const override
	Called for instructions with the Custom LegalizationAction.
bool	legalizeIntrinsic (LegalizerHelper &Helper, MachineInstr &MI) const override
Public Member Functions inherited from llvm::LegalizerInfo
virtual	~LegalizerInfo ()=default
const LegacyLegalizerInfo &	getLegacyLegalizerInfo () const
LegacyLegalizerInfo &	getLegacyLegalizerInfo ()
unsigned	getOpcodeIdxForOpcode (unsigned Opcode) const
unsigned	getActionDefinitionsIdx (unsigned Opcode) const
void	verify (const MCInstrInfo &MII) const
	Perform simple self-diagnostic and assert if there is anything obviously wrong with the actions set up.
const LegalizeRuleSet &	getActionDefinitions (unsigned Opcode) const
	Get the action definitions for the given opcode.
LegalizeRuleSet &	getActionDefinitionsBuilder (unsigned Opcode)
	Get the action definition builder for the given opcode.
LegalizeRuleSet &	getActionDefinitionsBuilder (std::initializer_list< unsigned > Opcodes)
	Get the action definition builder for the given set of opcodes.
void	aliasActionDefinitions (unsigned OpcodeTo, unsigned OpcodeFrom)
LegalizeActionStep	getAction (const LegalityQuery &Query) const
	Determine what action should be taken to legalize the described instruction.
LegalizeActionStep	getAction (const MachineInstr &MI, const MachineRegisterInfo &MRI) const
	Determine what action should be taken to legalize the given generic instruction.
bool	isLegal (const LegalityQuery &Query) const
bool	isLegalOrCustom (const LegalityQuery &Query) const
bool	isLegal (const MachineInstr &MI, const MachineRegisterInfo &MRI) const
bool	isLegalOrCustom (const MachineInstr &MI, const MachineRegisterInfo &MRI) const
virtual bool	legalizeCustom (LegalizerHelper &Helper, MachineInstr &MI, LostDebugLocObserver &LocObserver) const
	Called for instructions with the Custom LegalizationAction.
virtual bool	legalizeIntrinsic (LegalizerHelper &Helper, MachineInstr &MI) const
virtual unsigned	getExtOpcodeForWideningConstant (LLT SmallTy) const
	Return the opcode (SEXT/ZEXT/ANYEXT) that should be performed while widening a constant of type SmallTy which targets can override.

Detailed Description

Definition at line 26 of file RISCVLegalizerInfo.h.

Constructor & Destructor Documentation

RISCVLegalizerInfo()

RISCVLegalizerInfo::RISCVLegalizerInfo

(

const RISCVSubtarget &

ST

)

Definition at line 73 of file RISCVLegalizerInfo.cpp.

References llvm::LegalizeRuleSet::clampScalar(), llvm::LegalizerInfo::getActionDefinitionsBuilder(), llvm::LegalizeRuleSet::lower(), llvm::LLT::pointer(), llvm::LLT::scalable_vector(), llvm::LLT::scalar(), typeIsLegalIntOrFPVec(), and llvm::LegalizeRuleSet::widenScalarToNextPow2().

Member Function Documentation

legalizeCustom()

bool RISCVLegalizerInfo::legalizeCustom ( LegalizerHelper &  Helper, MachineInstr &  MI, LostDebugLocObserver &  LocObserver  ) const

overridevirtual

Called for instructions with the Custom LegalizationAction.

Reimplemented from llvm::LegalizerInfo.

Definition at line 1310 of file RISCVLegalizerInfo.cpp.

References llvm::And, llvm::MachineIRBuilder::buildAnd(), llvm::MachineIRBuilder::buildConstant(), llvm::MachineIRBuilder::buildICmp(), llvm::MachineIRBuilder::buildInstr(), llvm::GISelChangeObserver::changedInstr(), llvm::GISelChangeObserver::changingInstr(), llvm::MachineOperand::CreateImm(), F, llvm::MCInstrInfo::get(), llvm::MachineFunction::getFunction(), llvm::getIConstantVRegValWithLookThrough(), llvm::MachineOperand::getImm(), llvm::MachineIRBuilder::getMRI(), getRISCVWOpcode(), llvm::LLT::getSizeInBits(), llvm::MachineIRBuilder::getTII(), llvm::ConstantInt::getValue(), llvm::CmpInst::ICMP_NE, llvm::LegalizerHelper::Legalized, llvm_unreachable, llvm::LegalizerHelper::lower(), llvm::LegalizerHelper::lowerAbsToMaxNeg(), llvm::LegalizerHelper::lowerConstant(), MI, llvm::LegalizerHelper::MIRBuilder, MRI, llvm::LegalizerHelper::Observer, llvm::APInt::rotr(), llvm::RISCVFPRndMode::RTZ, llvm::LegalizerHelper::widenScalarDst(), llvm::LegalizerHelper::widenScalarSrc(), and llvm::APInt::zext().

legalizeIntrinsic()

bool RISCVLegalizerInfo::legalizeIntrinsic ( LegalizerHelper &  Helper, MachineInstr &  MI  ) const

overridevirtual

Returns

true if MI is either legal or has been legalized and false if not legal. Return true if MI is either legal or has been legalized and false if not legal.

Reimplemented from llvm::LegalizerInfo.

Definition at line 691 of file RISCVLegalizerInfo.cpp.

References llvm::MachineIRBuilder::buildLoad(), llvm::MachineIRBuilder::buildStore(), DL, llvm::Function::getContext(), llvm::MachineIRBuilder::getDataLayout(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::MachineIRBuilder::getMRI(), llvm::getTypeForLLT(), MI, llvm::LegalizerHelper::MIRBuilder, llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MOStore, and MRI.

---

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

• lib/Target/RISCV/GISel/RISCVLegalizerInfo.h
• lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp