LLVM: AMDGPURegBankLegalizeCombiner Class Reference

LLVM 22.0.0git

Public Member Functions
	AMDGPURegBankLegalizeCombiner (MachineIRBuilder &B, const SIRegisterInfo &TRI, const RegisterBankInfo &RBI)

bool	isLaneMask (Register Reg)

std::pair< MachineInstr *, Register >	tryMatch (Register Src, unsigned Opcode)

std::pair< GUnmerge *, int >	tryMatchRALFromUnmerge (Register Src)

Register	getReadAnyLaneSrc (Register Src)

void	replaceRegWithOrBuildCopy (Register Dst, Register Src)

bool	tryEliminateReadAnyLane (MachineInstr &Copy)

void	tryCombineCopy (MachineInstr &MI)

void	tryCombineS1AnyExt (MachineInstr &MI)

Detailed Description

Definition at line 99 of file AMDGPURegBankLegalize.cpp.

Constructor & Destructor Documentation

◆ AMDGPURegBankLegalizeCombiner()

AMDGPURegBankLegalizeCombiner::AMDGPURegBankLegalizeCombiner	(	MachineIRBuilder &	B,
		const SIRegisterInfo &	TRI,
		const RegisterBankInfo &	RBI
	)

inline

Definition at line 113 of file AMDGPURegBankLegalize.cpp.

References MRI, and TRI.

Member Function Documentation

◆ getReadAnyLaneSrc()

Register AMDGPURegBankLegalizeCombiner::getReadAnyLaneSrc ( Register Src )

Definition at line 161 of file AMDGPURegBankLegalize.cpp.

References llvm::MachineRegisterInfo::getType(), Idx, Merge, tryMatch(), and tryMatchRALFromUnmerge().

Referenced by tryEliminateReadAnyLane().

◆ isLaneMask()

bool AMDGPURegBankLegalizeCombiner::isLaneMask ( Register Reg )

Definition at line 131 of file AMDGPURegBankLegalize.cpp.

References llvm::RegisterBank::getID(), llvm::MachineRegisterInfo::getRegBankOrNull(), llvm::MachineRegisterInfo::getRegClassOrNull(), llvm::MachineRegisterInfo::getType(), llvm::SIRegisterInfo::isSGPRClass(), and llvm::LLT::scalar().

Referenced by tryCombineCopy().

◆ replaceRegWithOrBuildCopy()

void AMDGPURegBankLegalizeCombiner::replaceRegWithOrBuildCopy	(	Register	Dst,
		Register	Src
	)

Definition at line 210 of file AMDGPURegBankLegalize.cpp.

References llvm::MachineIRBuilder::buildCopy(), and llvm::MachineRegisterInfo::replaceRegWith().

Referenced by tryEliminateReadAnyLane().

◆ tryCombineCopy()

void AMDGPURegBankLegalizeCombiner::tryCombineCopy ( MachineInstr & MI )

Definition at line 263 of file AMDGPURegBankLegalize.cpp.

References assert(), llvm::MachineIRBuilder::buildAnd(), llvm::MachineIRBuilder::buildConstant(), llvm::MachineIRBuilder::buildInstr(), llvm::eraseInstr(), llvm::MachineRegisterInfo::getRegBankOrNull(), llvm::MachineRegisterInfo::getType(), isLaneMask(), MI, llvm::MachineIRBuilder::setInstr(), tryEliminateReadAnyLane(), and tryMatch().

◆ tryCombineS1AnyExt()

void AMDGPURegBankLegalizeCombiner::tryCombineS1AnyExt ( MachineInstr & MI )

Definition at line 294 of file AMDGPURegBankLegalize.cpp.

References llvm::MachineIRBuilder::buildMergeLikeInstr(), llvm::MachineIRBuilder::buildUnmerge(), llvm::eraseInstr(), llvm::MachineRegisterInfo::getType(), MI, llvm::MachineRegisterInfo::replaceRegWith(), llvm::MachineIRBuilder::setInstr(), and tryMatch().

◆ tryEliminateReadAnyLane()

bool AMDGPURegBankLegalizeCombiner::tryEliminateReadAnyLane ( MachineInstr & Copy )

Definition at line 218 of file AMDGPURegBankLegalize.cpp.

References llvm::MachineIRBuilder::buildBitcast(), llvm::eraseInstr(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), getReadAnyLaneSrc(), llvm::MachineOperand::getReg(), llvm::MachineRegisterInfo::getRegBankOrNull(), llvm::MachineRegisterInfo::getRegClassOrNull(), llvm::MachineRegisterInfo::getType(), llvm::MachineRegisterInfo::getVRegDef(), llvm::SIRegisterInfo::isVGPR(), replaceRegWithOrBuildCopy(), and llvm::MachineIRBuilder::setInstr().

Referenced by tryCombineCopy().

◆ tryMatch()

std::pair< MachineInstr *, Register > AMDGPURegBankLegalizeCombiner::tryMatch	(	Register	Src,
		unsigned	Opcode
	)

Definition at line 141 of file AMDGPURegBankLegalize.cpp.

References llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), and llvm::MachineRegisterInfo::getVRegDef().

Referenced by getReadAnyLaneSrc(), tryCombineCopy(), and tryCombineS1AnyExt().

◆ tryMatchRALFromUnmerge()

std::pair< GUnmerge *, int > AMDGPURegBankLegalizeCombiner::tryMatchRALFromUnmerge ( Register Src )

Definition at line 149 of file AMDGPURegBankLegalize.cpp.

References llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), and llvm::MachineRegisterInfo::getVRegDef().

Referenced by getReadAnyLaneSrc().

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

lib/Target/AMDGPU/AMDGPURegBankLegalize.cpp