llvm::X86LegalizerInfo Class Reference

#include "Target/X86/GISel/X86LegalizerInfo.h"

Inheritance diagram for llvm::X86LegalizerInfo:

Public Member Functions
	X86LegalizerInfo (const X86Subtarget &STI, const X86TargetMachine &TM)
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 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 24 of file X86LegalizerInfo.h.

Constructor & Destructor Documentation

X86LegalizerInfo()

X86LegalizerInfo::X86LegalizerInfo	(	const X86Subtarget &	STI,
		const X86TargetMachine &	TM )

Definition at line 32 of file X86LegalizerInfo.cpp.

References llvm::LegalizeRuleSet::clampMaxNumElements(), llvm::LegalizeRuleSet::clampMinNumElements(), llvm::LegalizeRuleSet::clampNumElements(), llvm::LegalizeRuleSet::clampScalar(), llvm::LegacyLegalizerInfo::computeTables(), llvm::LegalizeRuleSet::customForCartesianProduct(), llvm::LegalizeRuleSet::customIf(), llvm::LLT::fixed_vector(), llvm::LegalizerInfo::getActionDefinitionsBuilder(), llvm::X86Subtarget::getInstrInfo(), llvm::LegalizerInfo::getLegacyLegalizerInfo(), llvm::LegalizeRuleSet::legalFor(), llvm::LegalizeRuleSet::legalForCartesianProduct(), llvm::LegalizeRuleSet::legalIf(), libcall, llvm::LegalizeRuleSet::libcall(), llvm::LegalizeRuleSet::lower(), llvm::LegalizeRuleSet::minScalar(), llvm::LegalityQuery::MMODescrs, llvm::LegalizeRuleSet::moreElementsToNextPow2(), llvm::LegalityQuery::Opcode, llvm::LLT::pointer(), llvm::LLT::scalar(), llvm::LegalizeRuleSet::scalarize(), scalarize(), llvm::LegalityPredicates::scalarNarrowerThan(), llvm::LegalityPredicates::scalarOrEltWiderThan(), llvm::LegalizeRuleSet::scalarSameSizeAs(), llvm::LegalityPredicates::typeInSet(), llvm::LegalityPredicates::typeIs(), llvm::LegalityPredicates::typePairInSet(), llvm::LegalityQuery::Types, verify, and llvm::LegalizeRuleSet::widenScalarToNextPow2().

Member Function Documentation

legalizeCustom()

bool X86LegalizerInfo::legalizeCustom ( LegalizerHelper & Helper, MachineInstr & MI, LostDebugLocObserver & LocObserver ) const

overridevirtual

Called for instructions with the Custom LegalizationAction.

Reimplemented from llvm::LegalizerInfo.

Definition at line 602 of file X86LegalizerInfo.cpp.

References llvm::MachineIRBuilder::getMRI(), llvm_unreachable, MI, llvm::LegalizerHelper::MIRBuilder, and MRI.

legalizeIntrinsic()

bool X86LegalizerInfo::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 996 of file X86LegalizerInfo.cpp.

References MI.

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

• lib/Target/X86/GISel/X86LegalizerInfo.h
• lib/Target/X86/GISel/X86LegalizerInfo.cpp