llvm::VPlan Class Reference

VPlan models a candidate for vectorization, encoding various decisions take to produce efficient output IR, including which branches, basic-blocks and output IR instructions to generate, and their cost. More...

#include "Transforms/Vectorize/VPlan.h"

Public Member Functions
	VPlan (VPBlockBase *Entry=nullptr)
	~VPlan ()
void	execute (struct VPTransformState *State)
	Generate the IR code for this VPlan. More...
VPBlockBase *	getEntry ()
const VPBlockBase *	getEntry () const
VPBlockBase *	setEntry (VPBlockBase *Block)
VPValue *	getOrCreateBackedgeTakenCount ()
	The backedge taken count of the original loop. More...
void	addVF (unsigned VF)
bool	hasVF (unsigned VF)
const std::string &	getName () const
void	setName (const Twine &newName)
void	addExternalDef (VPValue *VPVal)
	Add VPVal to the pool of external definitions if it's not already in the pool. More...
void	addCBV (VPValue *CBV)
	Add CBV to the vector of condition bit values. More...
void	addVPValue (Value *V)
VPValue *	getVPValue (Value *V)
VPLoopInfo &	getVPLoopInfo ()
	Return the VPLoopInfo analysis for this VPlan. More...
const VPLoopInfo &	getVPLoopInfo () const

Friends
class	VPlanPrinter

Detailed Description

VPlan models a candidate for vectorization, encoding various decisions take to produce efficient output IR, including which branches, basic-blocks and output IR instructions to generate, and their cost.

VPlan holds a Hierarchical-CFG of VPBasicBlocks and VPRegionBlocks rooted at an Entry VPBlock.

Definition at line 1147 of file VPlan.h.

Constructor & Destructor Documentation

VPlan()

llvm::VPlan::VPlan ( VPBlockBase *  Entry = nullptr )

inline

Definition at line 1182 of file VPlan.h.

~VPlan()

llvm::VPlan::~VPlan ( )

inline

Definition at line 1184 of file VPlan.h.

References llvm::tgtok::Def, and llvm::VPBlockBase::deleteCFG().

Member Function Documentation

addCBV()

void llvm::VPlan::addCBV ( VPValue *  CBV )

inline

Add CBV to the vector of condition bit values.

Definition at line 1228 of file VPlan.h.

References llvm::SmallVectorTemplateBase< T >::push_back().

addExternalDef()

void llvm::VPlan::addExternalDef ( VPValue *  VPVal )

inline

Add VPVal to the pool of external definitions if it's not already in the pool.

Definition at line 1223 of file VPlan.h.

References llvm::SmallPtrSetImpl< PtrType >::insert().

addVF()

void llvm::VPlan::addVF ( unsigned  VF )

inline

Definition at line 1213 of file VPlan.h.

References llvm::SmallSet< T, N, C >::insert().

addVPValue()

void llvm::VPlan::addVPValue ( Value *  V )

inline

Definition at line 1232 of file VPlan.h.

References assert(), and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::count().

execute()

void VPlan::execute

(

struct VPTransformState *

State

)

Generate the IR code for this VPlan.

Generate the code inside the body of the vectorized loop.

Assumes a single LoopVectorBody basic-block was created for this. Introduce additional basic-blocks as needed, and fill them all.

Definition at line 359 of file VPlan.cpp.

References llvm::LoopBase< BlockT, LoopT >::addBasicBlockToLoop(), llvm::DominatorTreeBase< NodeT, IsPostDom >::addNewBlock(), assert(), llvm::VPTransformState::Builder, llvm::VPTransformState::CFG, llvm::BranchInst::Create(), llvm::IRBuilder< T, Inserter >::CreateSub(), llvm::IRBuilder< T, Inserter >::CreateUnreachable(), llvm::Depth, llvm::depth_first(), llvm::VPTransformState::DT, E, llvm::Instruction::eraseFromParent(), llvm::DOT::EscapeString(), llvm::raw_ostream::flush(), From, llvm::ConstantInt::get(), llvm::VPRegionBlock::getEntry(), llvm::VPBlockBase::getEntryBasicBlock(), llvm::VPBlockBase::getExitBasicBlock(), llvm::BasicBlock::getFirstInsertionPt(), llvm::VPBlockBase::getHierarchicalSuccessors(), llvm::LoopInfoBase< BlockT, LoopT >::getLoopFor(), llvm::VPBlockBase::getName(), llvm::VPBlockBase::getPredicate(), llvm::BasicBlock::getSinglePredecessor(), llvm::BasicBlock::getSingleSuccessor(), llvm::VPBlockBase::getSuccessors(), llvm::BasicBlock::getTerminator(), llvm::Value::getType(), llvm::cl::Hidden, I, llvm::VPRegionBlock::isReplicator(), llvm::VPTransformState::CFGState::LastBB, llvm::VPTransformState::LI, llvm_unreachable, llvm::MergeBlockIntoPredecessor(), llvm::RISCVFenceField::O, llvm::VPTransformState::CFGState::PrevBB, llvm::VPTransformState::CFGState::PrevVPBB, llvm::VPValue::printAsOperand(), llvm::Value::printAsOperand(), llvm::IRBuilderBase::SetInsertPoint(), llvm::BasicBlock::splitBasicBlock(), llvm::succ_begin(), llvm::succ_end(), llvm::Successor, llvm::MCID::Terminator, llvm::VPTransformState::TripCount, llvm::VPTransformState::CFGState::VPBB2IRBB, llvm::VPTransformState::CFGState::VPBBsToFix, and llvm::VPTransformState::VPValue2Value.

getEntry() [1/2]

VPBlockBase* llvm::VPlan::getEntry ( )

inline

Definition at line 1201 of file VPlan.h.

Referenced by llvm::VPlanPredicator::predicate(), llvm::VPInterleavedAccessInfo::VPInterleavedAccessInfo(), and llvm::VPlanPredicator::VPlanPredicator().

getEntry() [2/2]

const VPBlockBase* llvm::VPlan::getEntry ( ) const

inline

Definition at line 1202 of file VPlan.h.

getName()

const std::string& llvm::VPlan::getName ( ) const

inline

Definition at line 1217 of file VPlan.h.

References Name.

getOrCreateBackedgeTakenCount()

VPValue* llvm::VPlan::getOrCreateBackedgeTakenCount ( )

inline

The backedge taken count of the original loop.

Definition at line 1207 of file VPlan.h.

getVPLoopInfo() [1/2]

VPLoopInfo& llvm::VPlan::getVPLoopInfo ( )

inline

Return the VPLoopInfo analysis for this VPlan.

Definition at line 1245 of file VPlan.h.

getVPLoopInfo() [2/2]

const VPLoopInfo& llvm::VPlan::getVPLoopInfo ( ) const

inline

Definition at line 1246 of file VPlan.h.

getVPValue()

VPValue* llvm::VPlan::getVPValue ( Value *  V )

inline

Definition at line 1238 of file VPlan.h.

References assert(), and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::count().

hasVF()

bool llvm::VPlan::hasVF ( unsigned  VF )

inline

Definition at line 1215 of file VPlan.h.

References llvm::SmallSet< T, N, C >::count().

setEntry()

VPBlockBase* llvm::VPlan::setEntry ( VPBlockBase *  Block )

inline

Definition at line 1204 of file VPlan.h.

setName()

void llvm::VPlan::setName ( const Twine &  newName )

inline

Definition at line 1219 of file VPlan.h.

References llvm::Twine::str().

Friends And Related Function Documentation

VPlanPrinter

friend class VPlanPrinter

friend

Definition at line 1148 of file VPlan.h.

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

• lib/Transforms/Vectorize/VPlan.h
• lib/Transforms/Vectorize/VPlan.cpp