LLVM: AMDGPUPostLegalizerCombinerHelper Class Reference

LLVM 17.0.0git

Classes
struct	CvtF32UByteMatchInfo

struct	FMinFMaxLegacyInfo

Public Member Functions
	AMDGPUPostLegalizerCombinerHelper (MachineIRBuilder &B, AMDGPUCombinerHelper &Helper)

bool	matchFMinFMaxLegacy (MachineInstr &MI, FMinFMaxLegacyInfo &Info)

void	applySelectFCmpToFMinToFMaxLegacy (MachineInstr &MI, const FMinFMaxLegacyInfo &Info)

bool	matchUCharToFloat (MachineInstr &MI)

void	applyUCharToFloat (MachineInstr &MI)

bool	matchRcpSqrtToRsq (MachineInstr &MI, std::function< void(MachineIRBuilder &)> &MatchInfo)

bool	matchCvtF32UByteN (MachineInstr &MI, CvtF32UByteMatchInfo &MatchInfo)

void	applyCvtF32UByteN (MachineInstr &MI, const CvtF32UByteMatchInfo &MatchInfo)

bool	matchRemoveFcanonicalize (MachineInstr &MI, Register &Reg)

bool	matchCombineSignExtendInReg (MachineInstr &MI, MachineInstr *&MatchInfo)

void	applyCombineSignExtendInReg (MachineInstr &MI, MachineInstr *&MatchInfo)

Protected Attributes
MachineIRBuilder &	B

MachineFunction &	MF

MachineRegisterInfo &	MRI

const GCNSubtarget &	Subtarget

const SIInstrInfo &	TII

AMDGPUCombinerHelper &	Helper

Detailed Description

Definition at line 34 of file AMDGPUPostLegalizerCombiner.cpp.

Constructor & Destructor Documentation

◆ AMDGPUPostLegalizerCombinerHelper()

AMDGPUPostLegalizerCombinerHelper::AMDGPUPostLegalizerCombinerHelper	(	MachineIRBuilder &	B,
		AMDGPUCombinerHelper &	Helper
	)

inline

Definition at line 44 of file AMDGPUPostLegalizerCombiner.cpp.

Member Function Documentation

◆ applyCombineSignExtendInReg()

void AMDGPUPostLegalizerCombinerHelper::applyCombineSignExtendInReg	(	MachineInstr &	MI,
		MachineInstr *&	MatchInfo
	)

Definition at line 336 of file AMDGPUPostLegalizerCombiner.cpp.

References llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), MI, llvm::MachineInstr::setDesc(), llvm::MachineOperand::setReg(), and TII.

◆ applyCvtF32UByteN()

void AMDGPUPostLegalizerCombinerHelper::applyCvtF32UByteN	(	MachineInstr &	MI,
		const CvtF32UByteMatchInfo &	MatchInfo
	)

Definition at line 288 of file AMDGPUPostLegalizerCombiner.cpp.

References assert(), B, llvm::MachineIRBuilder::buildAnyExt(), llvm::MachineIRBuilder::buildInstr(), AMDGPUPostLegalizerCombinerHelper::CvtF32UByteMatchInfo::CvtVal, llvm::MachineInstrBuilder::getReg(), llvm::LLT::getSizeInBits(), llvm::MachineRegisterInfo::getType(), llvm::LLT::isScalar(), MI, MRI, llvm::LLT::scalar(), llvm::MachineIRBuilder::setInstrAndDebugLoc(), and AMDGPUPostLegalizerCombinerHelper::CvtF32UByteMatchInfo::ShiftOffset.

◆ applySelectFCmpToFMinToFMaxLegacy()

void AMDGPUPostLegalizerCombinerHelper::applySelectFCmpToFMinToFMaxLegacy	(	MachineInstr &	MI,
		const FMinFMaxLegacyInfo &	Info
	)

Definition at line 124 of file AMDGPUPostLegalizerCombiner.cpp.

References B, llvm::MachineIRBuilder::buildInstr(), llvm::CmpInst::FCMP_OGE, llvm::CmpInst::FCMP_OGT, llvm::CmpInst::FCMP_OLE, llvm::CmpInst::FCMP_OLT, llvm::CmpInst::FCMP_UGE, llvm::CmpInst::FCMP_UGT, llvm::CmpInst::FCMP_ULE, llvm::CmpInst::FCMP_ULT, Info, llvm_unreachable, MI, llvm::MachineIRBuilder::setInstrAndDebugLoc(), X, and Y.

◆ applyUCharToFloat()

void AMDGPUPostLegalizerCombinerHelper::applyUCharToFloat ( MachineInstr & MI )

Definition at line 192 of file AMDGPUPostLegalizerCombiner.cpp.

References B, llvm::MachineIRBuilder::buildAnyExtOrTrunc(), llvm::MachineIRBuilder::buildFPTrunc(), llvm::MachineIRBuilder::buildInstr(), llvm::MachineInstrBuilder::getReg(), llvm::MachineRegisterInfo::getType(), MI, MRI, llvm::LLT::scalar(), and llvm::MachineIRBuilder::setInstrAndDebugLoc().

◆ matchCombineSignExtendInReg()

bool AMDGPUPostLegalizerCombinerHelper::matchCombineSignExtendInReg	(	MachineInstr &	MI,
		MachineInstr *&	MatchInfo
	)

Definition at line 320 of file AMDGPUPostLegalizerCombiner.cpp.

References llvm::MachineInstr::getOpcode(), llvm::MachineRegisterInfo::getVRegDef(), llvm::MachineRegisterInfo::hasOneNonDBGUse(), MI, and MRI.

◆ matchCvtF32UByteN()

bool AMDGPUPostLegalizerCombinerHelper::matchCvtF32UByteN	(	MachineInstr &	MI,
		CvtF32UByteMatchInfo &	MatchInfo
	)

Definition at line 260 of file AMDGPUPostLegalizerCombiner.cpp.

References AMDGPUPostLegalizerCombinerHelper::CvtF32UByteMatchInfo::CvtVal, llvm::MIPatternMatch::m_GLShr(), llvm::MIPatternMatch::m_GShl(), llvm::MIPatternMatch::m_GZExt(), llvm::MIPatternMatch::m_ICst(), llvm::MIPatternMatch::m_Reg(), MI, llvm::MIPatternMatch::mi_match(), MRI, llvm::Offset, and AMDGPUPostLegalizerCombinerHelper::CvtF32UByteMatchInfo::ShiftOffset.

◆ matchFMinFMaxLegacy()

bool AMDGPUPostLegalizerCombinerHelper::matchFMinFMaxLegacy	(	MachineInstr &	MI,
		FMinFMaxLegacyInfo &	Info
	)

◆ matchRcpSqrtToRsq()

bool AMDGPUPostLegalizerCombinerHelper::matchRcpSqrtToRsq	(	MachineInstr &	MI,
		std::function< void(MachineIRBuilder &)> &	MatchInfo
	)

Definition at line 216 of file AMDGPUPostLegalizerCombiner.cpp.

References B, llvm::MachineIRBuilder::buildIntrinsic(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::MachineRegisterInfo::getVRegDef(), llvm::MIPatternMatch::m_GFSqrt(), llvm::MIPatternMatch::m_MInstr(), llvm::Match, MI, llvm::MIPatternMatch::mi_match(), and MRI.

◆ matchRemoveFcanonicalize()

bool AMDGPUPostLegalizerCombinerHelper::matchRemoveFcanonicalize	(	MachineInstr &	MI,
		Register &	Reg
	)

Definition at line 306 of file AMDGPUPostLegalizerCombiner.cpp.

References llvm::MachineFunction::getSubtarget(), llvm::TargetSubtargetInfo::getTargetLowering(), llvm::SITargetLowering::isCanonicalized(), MF, and MI.

◆ matchUCharToFloat()

bool AMDGPUPostLegalizerCombinerHelper::matchUCharToFloat ( MachineInstr & MI )

Definition at line 173 of file AMDGPUPostLegalizerCombiner.cpp.

References assert(), llvm::APInt::getHighBitsSet(), llvm::CombinerHelper::getKnownBits(), llvm::LLT::getSizeInBits(), llvm::MachineRegisterInfo::getType(), Helper, llvm::GISelKnownBits::maskedValueIsZero(), MI, MRI, and llvm::LLT::scalar().

Member Data Documentation

◆ B

MachineIRBuilder& AMDGPUPostLegalizerCombinerHelper::B

protected

Definition at line 36 of file AMDGPUPostLegalizerCombiner.cpp.

Referenced by applyCvtF32UByteN(), applySelectFCmpToFMinToFMaxLegacy(), applyUCharToFloat(), and matchRcpSqrtToRsq().

◆ Helper

AMDGPUCombinerHelper& AMDGPUPostLegalizerCombinerHelper::Helper

protected

Definition at line 41 of file AMDGPUPostLegalizerCombiner.cpp.

Referenced by matchUCharToFloat().

◆ MF

MachineFunction& AMDGPUPostLegalizerCombinerHelper::MF

protected

Definition at line 37 of file AMDGPUPostLegalizerCombiner.cpp.

Referenced by matchRemoveFcanonicalize().

◆ MRI

MachineRegisterInfo& AMDGPUPostLegalizerCombinerHelper::MRI

protected

Definition at line 38 of file AMDGPUPostLegalizerCombiner.cpp.

Referenced by applyCvtF32UByteN(), applyUCharToFloat(), matchCombineSignExtendInReg(), matchCvtF32UByteN(), matchFMinFMaxLegacy(), matchRcpSqrtToRsq(), and matchUCharToFloat().

◆ Subtarget

const GCNSubtarget& AMDGPUPostLegalizerCombinerHelper::Subtarget

protected

Definition at line 39 of file AMDGPUPostLegalizerCombiner.cpp.

◆ TII

const SIInstrInfo& AMDGPUPostLegalizerCombinerHelper::TII

protected

Definition at line 40 of file AMDGPUPostLegalizerCombiner.cpp.

Referenced by applyCombineSignExtendInReg().

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

lib/Target/AMDGPU/AMDGPUPostLegalizerCombiner.cpp