llvm::RISCVMatInt Namespace Reference

Classes
class	Inst

Typedefs
using	InstSeq = SmallVector< Inst, 8 >

Enumerations
enum	OpndKind { RegImm , Imm , RegReg , RegX0 }

Functions
InstSeq	generateInstSeq (int64_t Val, const MCSubtargetInfo &STI)
void	generateMCInstSeq (int64_t Val, const MCSubtargetInfo &STI, MCRegister DestReg, SmallVectorImpl< MCInst > &Insts)
InstSeq	generateTwoRegInstSeq (int64_t Val, const MCSubtargetInfo &STI, unsigned &ShiftAmt, unsigned &AddOpc)
int	getIntMatCost (const APInt &Val, unsigned Size, const MCSubtargetInfo &STI, bool CompressionCost, bool FreeZeroes)

Typedef Documentation

InstSeq

using llvm::RISCVMatInt::InstSeq = typedef SmallVector<Inst, 8>

Definition at line 43 of file RISCVMatInt.h.

Enumeration Type Documentation

OpndKind

enum llvm::RISCVMatInt::OpndKind

Enumerator
RegImm
Imm
RegReg
RegX0

Definition at line 22 of file RISCVMatInt.h.

Function Documentation

generateInstSeq()

InstSeq llvm::RISCVMatInt::generateInstSeq	(	int64_t	Val,
		const MCSubtargetInfo &	STI
	)

Definition at line 227 of file RISCVMatInt.cpp.

References assert(), llvm::countr_zero(), llvm::SmallVectorImpl< T >::emplace_back(), llvm::SmallVectorBase< Size_T >::empty(), extractRotateInfo(), generateInstSeqImpl(), generateInstSeqLeadingZeros(), llvm::MCSubtargetInfo::hasFeature(), llvm::Hi, llvm::Lo, llvm::popcount(), and llvm::SmallVectorBase< Size_T >::size().

Referenced by generateMCInstSeq(), generateTwoRegInstSeq(), getIntMatCost(), lowerConstant(), llvm::RISCVInstrInfo::movImm(), selectConstantAddr(), selectImm(), and llvm::RISCVTargetLowering::shouldConvertConstantLoadToIntImm().

generateMCInstSeq()

void llvm::RISCVMatInt::generateMCInstSeq	(	int64_t	Val,
		const MCSubtargetInfo &	STI,
		MCRegister	DestReg,
		SmallVectorImpl< MCInst > &	Insts
	)

Definition at line 431 of file RISCVMatInt.cpp.

References llvm::MCInstBuilder::addImm(), llvm::MCInstBuilder::addReg(), generateInstSeq(), llvm::RISCVMatInt::Inst::getImm(), llvm::RISCVMatInt::Inst::getOpcode(), llvm::RISCVMatInt::Inst::getOpndKind(), Imm, llvm::SmallVectorTemplateBase< T, bool >::push_back(), RegImm, RegReg, and RegX0.

generateTwoRegInstSeq()

InstSeq llvm::RISCVMatInt::generateTwoRegInstSeq	(	int64_t	Val,
		const MCSubtargetInfo &	STI,
		unsigned &	ShiftAmt,
		unsigned &	AddOpc
	)

Definition at line 468 of file RISCVMatInt.cpp.

References assert(), llvm::countr_zero(), generateInstSeq(), llvm::MCSubtargetInfo::hasFeature(), llvm::Hi_32(), and llvm::Lo_32().

Referenced by lowerConstant(), and selectImm().

getIntMatCost()

int llvm::RISCVMatInt::getIntMatCost	(	const APInt &	Val,
		unsigned	Size,
		const MCSubtargetInfo &	STI,
		bool	CompressionCost,
		bool	FreeZeroes
	)

Definition at line 501 of file RISCVMatInt.cpp.

References llvm::APInt::ashr(), generateInstSeq(), getInstSeqCost(), llvm::APInt::getSExtValue(), llvm::MCSubtargetInfo::hasFeature(), HasRVC, llvm::APInt::sextOrTrunc(), and Size.

Referenced by getIntImmCostImpl(), llvm::RISCVTargetLowering::isDesirableToCommuteWithShift(), llvm::RISCVTargetLowering::isFPImmLegal(), llvm::RISCVTargetLowering::PerformDAGCombine(), and llvm::RISCVDAGToDAGISel::selectInvLogicImm().