AMDGPURegBankCombinerHelper Class Reference

Collaboration diagram for AMDGPURegBankCombinerHelper:

Classes
struct	Med3MatchInfo
struct	MinMaxMedOpc

Public Member Functions
	AMDGPURegBankCombinerHelper (MachineIRBuilder &B, CombinerHelper &Helper)
bool	isVgprRegBank (Register Reg)
Register	getAsVgpr (Register Reg)
MinMaxMedOpc	getMinMaxPair (unsigned Opc)
template<class m_Cst , typename CstTy >
bool	matchMed (MachineInstr &MI, MachineRegisterInfo &MRI, MinMaxMedOpc MMMOpc, Register &Val, CstTy &K0, CstTy &K1)
bool	matchIntMinMaxToMed3 (MachineInstr &MI, Med3MatchInfo &MatchInfo)
bool	matchFPMinMaxToMed3 (MachineInstr &MI, Med3MatchInfo &MatchInfo)
bool	matchFPMinMaxToClamp (MachineInstr &MI, Register &Reg)
bool	matchFPMed3ToClamp (MachineInstr &MI, Register &Reg)
void	applyMed3 (MachineInstr &MI, Med3MatchInfo &MatchInfo)
void	applyClamp (MachineInstr &MI, Register &Reg)

Protected Attributes
MachineIRBuilder &	B
MachineFunction &	MF
MachineRegisterInfo &	MRI
const GCNSubtarget &	Subtarget
const RegisterBankInfo &	RBI
const TargetRegisterInfo &	TRI
const SIInstrInfo &	TII
CombinerHelper &	Helper

Detailed Description

Definition at line 34 of file AMDGPURegBankCombiner.cpp.

Constructor & Destructor Documentation

AMDGPURegBankCombinerHelper()

AMDGPURegBankCombinerHelper::AMDGPURegBankCombinerHelper ( MachineIRBuilder &  B, CombinerHelper &  Helper  )

inline

Definition at line 46 of file AMDGPURegBankCombiner.cpp.

Member Function Documentation

applyClamp()

void AMDGPURegBankCombinerHelper::applyClamp	(	MachineInstr &	MI,
		Register &	Reg
	)

Definition at line 314 of file AMDGPURegBankCombiner.cpp.

References B, llvm::MachineIRBuilder::buildInstr(), MI, and llvm::MachineIRBuilder::setInstrAndDebugLoc().

applyMed3()

void AMDGPURegBankCombinerHelper::applyMed3	(	MachineInstr &	MI,
		Med3MatchInfo &	MatchInfo
	)

Definition at line 321 of file AMDGPURegBankCombiner.cpp.

References B, llvm::MachineIRBuilder::buildInstr(), MI, AMDGPURegBankCombinerHelper::Med3MatchInfo::Opc, and llvm::MachineIRBuilder::setInstrAndDebugLoc().

getAsVgpr()

Register AMDGPURegBankCombinerHelper::getAsVgpr

(

Register

Reg

)

Definition at line 90 of file AMDGPURegBankCombiner.cpp.

References B, llvm::MachineIRBuilder::buildCopy(), llvm::MachineInstrBuilder::getReg(), llvm::RegisterBankInfo::getRegBank(), llvm::MachineRegisterInfo::getType(), isVgprRegBank(), MRI, RBI, llvm::MachineRegisterInfo::setRegBank(), and llvm::MachineRegisterInfo::use_instructions().

getMinMaxPair()

AMDGPURegBankCombinerHelper::MinMaxMedOpc AMDGPURegBankCombinerHelper::getMinMaxPair

(

unsigned

Opc

)

Definition at line 108 of file AMDGPURegBankCombiner.cpp.

References llvm_unreachable.

Referenced by matchFPMinMaxToClamp(), matchFPMinMaxToMed3(), and matchIntMinMaxToMed3().

isVgprRegBank()

bool AMDGPURegBankCombinerHelper::isVgprRegBank

(

Register

Reg

)

Definition at line 86 of file AMDGPURegBankCombiner.cpp.

References llvm::RegisterBank::getID(), llvm::RegisterBankInfo::getRegBank(), MRI, RBI, and TRI.

Referenced by getAsVgpr(), and matchIntMinMaxToMed3().

matchFPMed3ToClamp()

bool AMDGPURegBankCombinerHelper::matchFPMed3ToClamp	(	MachineInstr &	MI,
		Register &	Reg
	)

Definition at line 272 of file AMDGPURegBankCombiner.cpp.

References llvm::getDefIgnoringCopies(), llvm::MachineOperand::getFPImm(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::ConstantFP::isExactlyValue(), llvm::isKnownNeverNaN(), llvm::isKnownNeverSNaN(), MI, MRI, and std::swap().

matchFPMinMaxToClamp()

bool AMDGPURegBankCombinerHelper::matchFPMinMaxToClamp	(	MachineInstr &	MI,
		Register &	Reg
	)

Definition at line 236 of file AMDGPURegBankCombiner.cpp.

References getMinMaxPair(), llvm::isKnownNeverNaN(), llvm::isKnownNeverSNaN(), MI, and MRI.

matchFPMinMaxToMed3()

bool AMDGPURegBankCombinerHelper::matchFPMinMaxToMed3	(	MachineInstr &	MI,
		Med3MatchInfo &	MatchInfo
	)

Definition at line 196 of file AMDGPURegBankCombiner.cpp.

References getMinMaxPair(), llvm::MachineRegisterInfo::getType(), llvm::GCNSubtarget::hasMed3_16(), llvm::MachineRegisterInfo::hasOneNonDBGUse(), llvm::SIInstrInfo::isInlineConstant(), llvm::isKnownNeverNaN(), MI, MRI, llvm::LLT::scalar(), Subtarget, and TII.

matchIntMinMaxToMed3()

bool AMDGPURegBankCombinerHelper::matchIntMinMaxToMed3	(	MachineInstr &	MI,
		Med3MatchInfo &	MatchInfo
	)

Definition at line 150 of file AMDGPURegBankCombiner.cpp.

References getMinMaxPair(), llvm::MachineRegisterInfo::getType(), llvm::GCNSubtarget::hasMed3_16(), isVgprRegBank(), AMDGPURegBankCombinerHelper::MinMaxMedOpc::Med, MI, MRI, llvm::LLT::scalar(), and Subtarget.

matchMed()

template<class m_Cst , typename CstTy >

bool AMDGPURegBankCombinerHelper::matchMed	(	MachineInstr &	MI,
		MachineRegisterInfo &	MRI,
		MinMaxMedOpc	MMMOpc,
		Register &	Val,
		CstTy &	K0,
		CstTy &	K1
	)

Definition at line 129 of file AMDGPURegBankCombiner.cpp.

References llvm::MIPatternMatch::m_any_of(), llvm::MIPatternMatch::m_CommutativeBinOp(), llvm::MIPatternMatch::m_Reg(), AMDGPURegBankCombinerHelper::MinMaxMedOpc::Max, MI, llvm::MIPatternMatch::mi_match(), AMDGPURegBankCombinerHelper::MinMaxMedOpc::Min, and MRI.

Member Data Documentation

B

MachineIRBuilder& AMDGPURegBankCombinerHelper::B

protected

Definition at line 36 of file AMDGPURegBankCombiner.cpp.

Referenced by applyClamp(), applyMed3(), and getAsVgpr().

Helper

CombinerHelper& AMDGPURegBankCombinerHelper::Helper

protected

Definition at line 43 of file AMDGPURegBankCombiner.cpp.

MF

MachineFunction& AMDGPURegBankCombinerHelper::MF

protected

Definition at line 37 of file AMDGPURegBankCombiner.cpp.

MRI

MachineRegisterInfo& AMDGPURegBankCombinerHelper::MRI

protected

Definition at line 38 of file AMDGPURegBankCombiner.cpp.

Referenced by getAsVgpr(), isVgprRegBank(), matchFPMed3ToClamp(), matchFPMinMaxToClamp(), matchFPMinMaxToMed3(), matchIntMinMaxToMed3(), and matchMed().

RBI

const RegisterBankInfo& AMDGPURegBankCombinerHelper::RBI

protected

Definition at line 40 of file AMDGPURegBankCombiner.cpp.

Referenced by getAsVgpr(), and isVgprRegBank().

Subtarget

const GCNSubtarget& AMDGPURegBankCombinerHelper::Subtarget

protected

Definition at line 39 of file AMDGPURegBankCombiner.cpp.

Referenced by matchFPMinMaxToMed3(), and matchIntMinMaxToMed3().

TII

const SIInstrInfo& AMDGPURegBankCombinerHelper::TII

protected

Definition at line 42 of file AMDGPURegBankCombiner.cpp.

Referenced by matchFPMinMaxToMed3().

TRI

const TargetRegisterInfo& AMDGPURegBankCombinerHelper::TRI

protected

Definition at line 41 of file AMDGPURegBankCombiner.cpp.

Referenced by isVgprRegBank().

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

• lib/Target/AMDGPU/AMDGPURegBankCombiner.cpp