llvm::ElementCount Class Reference

#include "llvm/Support/TypeSize.h"

Inheritance diagram for llvm::ElementCount:

Collaboration diagram for llvm::ElementCount:

Public Member Functions
	ElementCount ()
	ElementCount (const LinearPolySize< ElementCount > &V)
bool	isScalar () const
	Counting predicates. More...
bool	isVector () const
	One or more elements. More...
Public Member Functions inherited from llvm::LinearPolySize< ElementCount >
ScalarTy	getKnownMinValue () const
	Returns the minimum value this size can represent. More...
bool	isScalable () const
	Returns whether the size is scaled by a runtime quantity (vscale). More...
bool	isKnownEven () const
	A return value of true indicates we know at compile time that the number of elements (vscale * Min) is definitely even. More...
bool	isKnownMultipleOf (ScalarTy RHS) const
	This function tells the caller whether the element count is known at compile time to be a multiple of the scalar value RHS. More...
ScalarTy	getFixedValue () const
ElementCount	divideCoefficientBy (ScalarTy RHS) const
	We do not provide the '/' operator here because division for polynomial types does not work in the same way as for normal integer types. More...
ElementCount	coefficientNextPowerOf2 () const
void	print (raw_ostream &OS) const
	Printing function. More...
Public Member Functions inherited from llvm::UnivariateLinearPolyBase< ElementCount >
bool	operator== (const UnivariateLinearPolyBase &RHS) const
bool	operator!= (const UnivariateLinearPolyBase &RHS) const
bool	isZero () const
bool	isNonZero () const
	operator bool () const
ScalarTy	getValue (unsigned Dim) const
ElementCount	getWithIncrement (ScalarTy RHS) const
	Add RHS to the value at the univariate dimension. More...
ElementCount	getWithDecrement (ScalarTy RHS) const
	Subtract RHS from the value at the univariate dimension. More...

Additional Inherited Members
Public Types inherited from llvm::LinearPolySize< ElementCount >
enum	Dims
using	ScalarTy = typename UnivariateLinearPolyBase< ElementCount >::ScalarTy
Public Types inherited from llvm::UnivariateLinearPolyBase< ElementCount >
using	ScalarTy = typename LinearPolyBaseTypeTraits< ElementCount >::ScalarTy
Static Public Member Functions inherited from llvm::LinearPolySize< ElementCount >
static ElementCount	getFixed (ScalarTy MinVal)
static ElementCount	getScalable (ScalarTy MinVal)
static ElementCount	get (ScalarTy MinVal, bool Scalable)
static ElementCount	getNull ()
static bool	isKnownLT (const LinearPolySize &LHS, const LinearPolySize &RHS)
static bool	isKnownGT (const LinearPolySize &LHS, const LinearPolySize &RHS)
static bool	isKnownLE (const LinearPolySize &LHS, const LinearPolySize &RHS)
static bool	isKnownGE (const LinearPolySize &LHS, const LinearPolySize &RHS)
Static Public Attributes inherited from llvm::UnivariateLinearPolyBase< ElementCount >
static constexpr auto	Dimensions
Protected Member Functions inherited from llvm::LinearPolySize< ElementCount >
	LinearPolySize (ScalarTy MinVal, Dims D)
	LinearPolySize (const UnivariateLinearPolyBase< ElementCount > &V)
Protected Member Functions inherited from llvm::UnivariateLinearPolyBase< ElementCount >
	UnivariateLinearPolyBase (ScalarTy Val, unsigned UnivariateDim)
Protected Attributes inherited from llvm::UnivariateLinearPolyBase< ElementCount >
ScalarTy	Value
unsigned	UnivariateDim

Detailed Description

Definition at line 385 of file TypeSize.h.

Constructor & Destructor Documentation

ElementCount() [1/2]

llvm::ElementCount::ElementCount ( )

inline

Definition at line 387 of file TypeSize.h.

ElementCount() [2/2]

llvm::ElementCount::ElementCount ( const LinearPolySize< ElementCount > &  V )

inline

Definition at line 389 of file TypeSize.h.

Member Function Documentation

isScalar()

bool llvm::ElementCount::isScalar ( ) const

inline

Counting predicates.

Number of elements.. Exactly one element.

Definition at line 395 of file TypeSize.h.

References llvm::LinearPolySize< ElementCount >::getKnownMinValue(), and llvm::LinearPolySize< ElementCount >::isScalable().

Referenced by llvm::LoopVectorizationCostModel::collectInstsToScalarize(), llvm::LoopVectorizationCostModel::collectUniformsAndScalars(), llvm::VPWidenRecipe::execute(), llvm::VPWidenGEPRecipe::execute(), llvm::VPFirstOrderRecurrencePHIRecipe::execute(), llvm::VPReductionPHIRecipe::execute(), llvm::VPWidenCanonicalIVRecipe::execute(), llvm::VPTransformState::get(), getCopyToPartsVector(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getIntrinsicInstrCost(), llvm::TargetLoweringBase::getPreferredVectorAction(), llvm::LoopVectorizationCostModel::getVectorCallCost(), llvm::TargetLoweringBase::getVectorTypeBreakdown(), llvm::hasVectorizeTransformation(), llvm::LoopVectorizationCostModel::isScalarAfterVectorization(), llvm::LoopVectorizationCostModel::isUniformAfterVectorization(), MaybeVectorizeType(), llvm::LoopVectorizationPlanner::planInVPlanNativePath(), llvm::LoopVectorizePass::processLoop(), llvm::LoopVectorizationCostModel::selectInterleaveCount(), llvm::LoopVectorizationCostModel::selectVectorizationFactor(), llvm::LoopVectorizationCostModel::setCostBasedWideningDecision(), and llvm::InnerLoopVectorizer::widenPHIInstruction().

isVector()

bool llvm::ElementCount::isVector ( ) const

inline

One or more elements.

Definition at line 397 of file TypeSize.h.

References llvm::LinearPolySize< ElementCount >::getKnownMinValue(), and llvm::LinearPolySize< ElementCount >::isScalable().

Referenced by llvm::InnerLoopVectorizer::buildScalarSteps(), llvm::LoopVectorizationCostModel::canTruncateToMinimalBitwidth(), llvm::LoopVectorizationCostModel::computeMaxVF(), llvm::VPWidenGEPRecipe::execute(), llvm::VPFirstOrderRecurrencePHIRecipe::execute(), llvm::VPReductionRecipe::execute(), llvm::VPReplicateRecipe::execute(), llvm::VPWidenCanonicalIVRecipe::execute(), llvm::InnerLoopVectorizer::fixFirstOrderRecurrence(), llvm::InnerLoopVectorizer::fixReduction(), llvm::InnerLoopVectorizer::fixVectorizedLoop(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getIntrinsicInstrCost(), getStepVector(), llvm::LoopVectorizationCostModel::getWideningCost(), llvm::LoopVectorizationCostModel::getWideningDecision(), llvm::FixedScalableVFPair::hasVector(), llvm::hasVectorizeTransformation(), llvm::LoopVectorizationCostModel::isLegalGatherOrScatter(), llvm::LoopVectorizationCostModel::isProfitableToScalarize(), llvm::LoopVectorizationCostModel::isScalarWithPredication(), llvm::LoopVectorizationPlanner::plan(), llvm::LoopVectorizePass::processLoop(), llvm::LoopVectorizationCostModel::requiresScalarEpilogue(), llvm::LoopVectorizationCostModel::selectInterleaveCount(), llvm::LoopVectorizationCostModel::setWideningDecision(), warnAboutLeftoverTransformations(), and llvm::InnerLoopVectorizer::widenCallInstruction().

---

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

• include/llvm/Support/TypeSize.h