llvm::EpilogueVectorizerEpilogueLoop Class Reference

Inheritance diagram for llvm::EpilogueVectorizerEpilogueLoop:

Public Member Functions
	EpilogueVectorizerEpilogueLoop (Loop *OrigLoop, PredicatedScalarEvolution &PSE, LoopInfo *LI, DominatorTree *DT, const TargetTransformInfo *TTI, AssumptionCache *AC, EpilogueLoopVectorizationInfo &EPI, LoopVectorizationCostModel *CM, BlockFrequencyInfo *BFI, ProfileSummaryInfo *PSI, GeneratedRTChecks &Checks, VPlan &Plan)
BasicBlock *	createVectorizedLoopSkeleton () final
	Implements the interface for creating a vectorized skeleton using the epilogue loop strategy (i.e., the second pass of VPlan execution).
Public Member Functions inherited from llvm::InnerLoopAndEpilogueVectorizer
	InnerLoopAndEpilogueVectorizer (Loop *OrigLoop, PredicatedScalarEvolution &PSE, LoopInfo *LI, DominatorTree *DT, const TargetTransformInfo *TTI, AssumptionCache *AC, EpilogueLoopVectorizationInfo &EPI, LoopVectorizationCostModel *CM, BlockFrequencyInfo *BFI, ProfileSummaryInfo *PSI, GeneratedRTChecks &Checks, VPlan &Plan, ElementCount VecWidth, ElementCount MinProfitableTripCount, unsigned UnrollFactor)
Public Member Functions inherited from llvm::InnerLoopVectorizer
	InnerLoopVectorizer (Loop *OrigLoop, PredicatedScalarEvolution &PSE, LoopInfo *LI, DominatorTree *DT, const TargetTransformInfo *TTI, AssumptionCache *AC, ElementCount VecWidth, unsigned UnrollFactor, LoopVectorizationCostModel *CM, BlockFrequencyInfo *BFI, ProfileSummaryInfo *PSI, GeneratedRTChecks &RTChecks, VPlan &Plan)
virtual	~InnerLoopVectorizer ()=default
void	fixVectorizedLoop (VPTransformState &State)
	Fix the vectorized code, taking care of header phi's, and more.
void	fixNonInductionPHIs (VPTransformState &State)
	Fix the non-induction PHIs in Plan.
Value *	getTripCount () const
	Returns the original loop trip count.
void	setTripCount (Value *TC)
	Used to set the trip count after ILV's construction and after the preheader block has been executed.

Protected Member Functions
void	printDebugTracesAtStart () override
	Allow subclasses to override and print debug traces before/after vplan execution, when trace information is requested.
void	printDebugTracesAtEnd () override
Protected Member Functions inherited from llvm::InnerLoopVectorizer
BasicBlock *	createScalarPreheader (StringRef Prefix)
	Create and return a new IR basic block for the scalar preheader whose name is prefixed with Prefix.

Additional Inherited Members
Public Attributes inherited from llvm::InnerLoopAndEpilogueVectorizer
EpilogueLoopVectorizationInfo &	EPI
	Holds and updates state information required to vectorize the main loop and its epilogue in two separate passes.
Protected Attributes inherited from llvm::InnerLoopAndEpilogueVectorizer
ElementCount	MinProfitableTripCount
Protected Attributes inherited from llvm::InnerLoopVectorizer
Loop *	OrigLoop
	The original loop.
PredicatedScalarEvolution &	PSE
	A wrapper around ScalarEvolution used to add runtime SCEV checks.
LoopInfo *	LI
	Loop Info.
DominatorTree *	DT
	Dominator Tree.
const TargetTransformInfo *	TTI
	Target Transform Info.
AssumptionCache *	AC
	Assumption Cache.
ElementCount	VF
	The vectorization SIMD factor to use.
unsigned	UF
	The vectorization unroll factor to use.
IRBuilder	Builder
	The builder that we use.
Value *	TripCount = nullptr
	Trip count of the original loop.
LoopVectorizationCostModel *	Cost
	The profitablity analysis.
BlockFrequencyInfo *	BFI
	BFI and PSI are used to check for profile guided size optimizations.
ProfileSummaryInfo *	PSI
GeneratedRTChecks &	RTChecks
	Structure to hold information about generated runtime checks, responsible for cleaning the checks, if vectorization turns out unprofitable.
VPlan &	Plan
VPBasicBlock *	VectorPHVPBB
	The vector preheader block of Plan, used as target for check blocks introduced during skeleton creation.

Detailed Description

Definition at line 694 of file LoopVectorize.cpp.

Constructor & Destructor Documentation

EpilogueVectorizerEpilogueLoop()

llvm::EpilogueVectorizerEpilogueLoop::EpilogueVectorizerEpilogueLoop ( Loop * OrigLoop, PredicatedScalarEvolution & PSE, LoopInfo * LI, DominatorTree * DT, const TargetTransformInfo * TTI, AssumptionCache * AC, EpilogueLoopVectorizationInfo & EPI, LoopVectorizationCostModel * CM, BlockFrequencyInfo * BFI, ProfileSummaryInfo * PSI, GeneratedRTChecks & Checks, VPlan & Plan )

inline

Definition at line 696 of file LoopVectorize.cpp.

References llvm::InnerLoopVectorizer::AC, llvm::InnerLoopVectorizer::BFI, llvm::InnerLoopVectorizer::DT, llvm::InnerLoopAndEpilogueVectorizer::EPI, llvm::InnerLoopAndEpilogueVectorizer::InnerLoopAndEpilogueVectorizer(), llvm::InnerLoopVectorizer::LI, llvm::InnerLoopVectorizer::OrigLoop, llvm::InnerLoopVectorizer::Plan, llvm::InnerLoopVectorizer::PSE, and llvm::InnerLoopVectorizer::PSI.

Member Function Documentation

createVectorizedLoopSkeleton()

BasicBlock * EpilogueVectorizerEpilogueLoop::createVectorizedLoopSkeleton ( )

finalvirtual

Implements the interface for creating a vectorized skeleton using the epilogue loop strategy (i.e., the second pass of VPlan execution).

This function creates a new scalar preheader, using the previous one as entry block to the epilogue VPlan.

The minimum iteration check is being represented in VPlan.

Reimplemented from llvm::InnerLoopVectorizer.

Definition at line 7411 of file LoopVectorize.cpp.

References llvm::InnerLoopVectorizer::createScalarPreheader(), llvm::VPBasicBlock::end(), llvm::BasicBlock::getSinglePredecessor(), llvm::isa(), llvm::make_early_inc_range(), llvm::InnerLoopVectorizer::Plan, llvm::VPBlockUtils::reassociateBlocks(), and llvm::Value::setName().

printDebugTracesAtEnd()

void EpilogueVectorizerEpilogueLoop::printDebugTracesAtEnd ( )

overrideprotectedvirtual

Reimplemented from llvm::InnerLoopVectorizer.

Definition at line 7440 of file LoopVectorize.cpp.

References llvm::dbgs(), DEBUG_WITH_TYPE, llvm::InnerLoopVectorizer::OrigLoop, and VerboseDebug.

printDebugTracesAtStart()

void EpilogueVectorizerEpilogueLoop::printDebugTracesAtStart ( )

overrideprotectedvirtual

Allow subclasses to override and print debug traces before/after vplan execution, when trace information is requested.

Reimplemented from llvm::InnerLoopVectorizer.

Definition at line 7432 of file LoopVectorize.cpp.

References llvm::dbgs(), llvm::InnerLoopAndEpilogueVectorizer::EPI, and LLVM_DEBUG.

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

• lib/Transforms/Vectorize/LoopVectorize.cpp