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 FeatureBitset &ActiveFeatures)
int	getIntMatCost (const APInt &Val, unsigned Size, const FeatureBitset &ActiveFeatures, bool CompressionCost)

Typedef Documentation

InstSeq

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

Definition at line 42 of file RISCVMatInt.h.

Enumeration Type Documentation

OpndKind

enum llvm::RISCVMatInt::OpndKind

Enumerator
RegImm
Imm
RegReg
RegX0

Definition at line 21 of file RISCVMatInt.h.

Function Documentation

generateInstSeq()

InstSeq llvm::RISCVMatInt::generateInstSeq	(	int64_t	Val,
		const FeatureBitset &	ActiveFeatures
	)

Definition at line 175 of file RISCVMatInt.cpp.

References assert(), llvm::SmallVectorImpl< T >::clear(), llvm::countl_zero(), llvm::countr_zero(), llvm::SmallVectorImpl< T >::emplace_back(), llvm::SmallVectorBase< Size_T >::empty(), extractRotateInfo(), generateInstSeqImpl(), llvm::Hi, llvm::Hi_32(), llvm::Lo, llvm::Lo_32(), llvm::popcount(), and llvm::SmallVectorBase< Size_T >::size().

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

getIntMatCost()

int llvm::RISCVMatInt::getIntMatCost	(	const APInt &	Val,
		unsigned	Size,
		const FeatureBitset &	ActiveFeatures,
		bool	CompressionCost
	)

Definition at line 374 of file RISCVMatInt.cpp.

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

Referenced by llvm::RISCVTTIImpl::getIntImmCost(), llvm::RISCVTargetLowering::isDesirableToCommuteWithShift(), llvm::RISCVTargetLowering::isFPImmLegal(), and llvm::RISCVTargetLowering::PerformDAGCombine().