LLVM  6.0.0svn
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llvm::slpvectorizer::BoUpSLP Class Reference

Bottom Up SLP Vectorizer. More...

Public Types

using ValueList = SmallVector< Value *, 8 >
 
using InstrList = SmallVector< Instruction *, 16 >
 
using ValueSet = SmallPtrSet< Value *, 16 >
 
using StoreList = SmallVector< StoreInst *, 8 >
 
using ExtraValueToDebugLocsMap = MapVector< Value *, SmallVector< Instruction *, 2 > >
 

Public Member Functions

 BoUpSLP (Function *Func, ScalarEvolution *Se, TargetTransformInfo *Tti, TargetLibraryInfo *TLi, AliasAnalysis *Aa, LoopInfo *Li, DominatorTree *Dt, AssumptionCache *AC, DemandedBits *DB, const DataLayout *DL, OptimizationRemarkEmitter *ORE)
 
ValuevectorizeTree ()
 Vectorize the tree that starts with the elements in VL. More...
 
ValuevectorizeTree (ExtraValueToDebugLocsMap &ExternallyUsedValues)
 Vectorize the tree but with the list of externally used values ExternallyUsedValues. More...
 
int getSpillCost ()
 
int getTreeCost ()
 
void buildTree (ArrayRef< Value *> Roots, ArrayRef< Value *> UserIgnoreLst=None)
 Construct a vectorizable tree that starts at Roots, ignoring users for the purpose of scheduling and extraction in the UserIgnoreLst. More...
 
void buildTree (ArrayRef< Value *> Roots, ExtraValueToDebugLocsMap &ExternallyUsedValues, ArrayRef< Value *> UserIgnoreLst=None)
 Construct a vectorizable tree that starts at Roots, ignoring users for the purpose of scheduling and extraction in the UserIgnoreLst taking into account (anf updating it, if required) list of externally used values stored in ExternallyUsedValues. More...
 
void deleteTree ()
 Clear the internal data structures that are created by 'buildTree'. More...
 
unsigned getTreeSize () const
 
void optimizeGatherSequence ()
 Perform LICM and CSE on the newly generated gather sequences. More...
 
bool shouldReorder () const
 
unsigned getVectorElementSize (Value *V)
 
void computeMinimumValueSizes ()
 Compute the minimum type sizes required to represent the entries in a vectorizable tree. More...
 
unsigned getMaxVecRegSize () const
 
unsigned getMinVecRegSize () const
 
unsigned canMapToVector (Type *T, const DataLayout &DL) const
 Check if ArrayType or StructType is isomorphic to some VectorType. More...
 
bool isTreeTinyAndNotFullyVectorizable ()
 
OptimizationRemarkEmittergetORE ()
 

Friends

struct GraphTraits< BoUpSLP *>
 
struct DOTGraphTraits< BoUpSLP *>
 
raw_ostreamoperator<< (raw_ostream &os, const BoUpSLP::ScheduleData &SD)
 

Detailed Description

Bottom Up SLP Vectorizer.

Definition at line 519 of file SLPVectorizer.cpp.

Member Typedef Documentation

◆ ExtraValueToDebugLocsMap

Definition at line 526 of file SLPVectorizer.cpp.

◆ InstrList

Definition at line 522 of file SLPVectorizer.cpp.

◆ StoreList

Definition at line 524 of file SLPVectorizer.cpp.

◆ ValueList

Definition at line 521 of file SLPVectorizer.cpp.

◆ ValueSet

Definition at line 523 of file SLPVectorizer.cpp.

Constructor & Destructor Documentation

◆ BoUpSLP()

llvm::slpvectorizer::BoUpSLP::BoUpSLP ( Function Func,
ScalarEvolution Se,
TargetTransformInfo Tti,
TargetLibraryInfo TLi,
AliasAnalysis Aa,
LoopInfo Li,
DominatorTree Dt,
AssumptionCache AC,
DemandedBits DB,
const DataLayout DL,
OptimizationRemarkEmitter ORE 
)
inline

Member Function Documentation

◆ buildTree() [1/2]

void llvm::slpvectorizer::BoUpSLP::buildTree ( ArrayRef< Value *>  Roots,
ArrayRef< Value *>  UserIgnoreLst = None 
)

Construct a vectorizable tree that starts at Roots, ignoring users for the purpose of scheduling and extraction in the UserIgnoreLst.

◆ buildTree() [2/2]

void llvm::slpvectorizer::BoUpSLP::buildTree ( ArrayRef< Value *>  Roots,
ExtraValueToDebugLocsMap ExternallyUsedValues,
ArrayRef< Value *>  UserIgnoreLst = None 
)

Construct a vectorizable tree that starts at Roots, ignoring users for the purpose of scheduling and extraction in the UserIgnoreLst taking into account (anf updating it, if required) list of externally used values stored in ExternallyUsedValues.

◆ canMapToVector()

unsigned BoUpSLP::canMapToVector ( Type T,
const DataLayout DL 
) const

Check if ArrayType or StructType is isomorphic to some VectorType.

Returns
number of elements in vector if isomorphism exists, 0 otherwise.

Definition at line 1901 of file SLPVectorizer.cpp.

References llvm::MCID::Add, llvm::all_of(), allConstant(), allSameBlock(), allSameType(), llvm::CallInst::arg_operands(), llvm::AMDGPU::HSAMD::Kernel::Key::Args, assert(), llvm::MCID::Call, llvm::dbgs(), DEBUG, llvm::dyn_cast(), E, F(), llvm::IntegerType::get(), llvm::VectorType::get(), getAlignment(), llvm::CallInst::getArgOperand(), llvm::Module::getDataLayout(), llvm::Type::getInt1Ty(), llvm::Instruction::getModule(), llvm::CallInst::getNumArgOperands(), llvm::SequentialType::getNumElements(), llvm::Instruction::getOpcode(), llvm::User::getOperand(), getSameOpcode(), llvm::Value::getType(), llvm::DataLayout::getTypeStoreSizeInBits(), llvm::Optional< T >::getValue(), llvm::ConstantInt::getValue(), llvm::getVectorIntrinsicIDForCall(), llvm::Value::hasNUses(), llvm::Value::hasOneUse(), llvm::Optional< T >::hasValue(), I, llvm::APInt::isPowerOf2(), isShuffle(), llvm::LoadInst::isSimple(), isSplat(), isValidElementType(), llvm_unreachable, llvm::SPII::Load, matchExtractIndex(), N, llvm::TargetTransformInfo::OK_AnyValue, llvm::TargetTransformInfo::OK_NonUniformConstantValue, llvm::TargetTransformInfo::OK_UniformConstantValue, op, llvm::TargetTransformInfo::OP_None, llvm::TargetTransformInfo::OP_PowerOf2, llvm::User::operand_values(), llvm::SmallVectorTemplateBase< T, isPodLike< T >::value >::push_back(), llvm::MCID::Select, SI, llvm::ArrayRef< T >::size(), llvm::TargetTransformInfo::SK_Alternate, llvm::TargetTransformInfo::SK_Broadcast, llvm::ARM_MB::ST, llvm::SPII::Store, T, llvm::Value::user_begin(), and llvm::Value::user_end().

◆ computeMinimumValueSizes()

void BoUpSLP::computeMinimumValueSizes ( )

◆ deleteTree()

void llvm::slpvectorizer::BoUpSLP::deleteTree ( )
inline

Clear the internal data structures that are created by 'buildTree'.

Definition at line 583 of file SLPVectorizer.cpp.

◆ getMaxVecRegSize()

unsigned llvm::slpvectorizer::BoUpSLP::getMaxVecRegSize ( ) const
inline

Definition at line 619 of file SLPVectorizer.cpp.

◆ getMinVecRegSize()

unsigned llvm::slpvectorizer::BoUpSLP::getMinVecRegSize ( ) const
inline

Definition at line 624 of file SLPVectorizer.cpp.

◆ getORE()

OptimizationRemarkEmitter* llvm::slpvectorizer::BoUpSLP::getORE ( )
inline

◆ getSpillCost()

int BoUpSLP::getSpillCost ( )

◆ getTreeCost()

int BoUpSLP::getTreeCost ( )

◆ getTreeSize()

unsigned llvm::slpvectorizer::BoUpSLP::getTreeSize ( ) const
inline

Definition at line 597 of file SLPVectorizer.cpp.

◆ getVectorElementSize()

unsigned BoUpSLP::getVectorElementSize ( Value V)
Returns
The vector element size in bits to use when vectorizing the expression tree ending at V. If V is a store, the size is the width of the stored value. Otherwise, the size is the width of the largest loaded value reaching V. This method is used by the vectorizer to calculate vectorization factors.

Definition at line 3839 of file SLPVectorizer.cpp.

References llvm::SmallPtrSetImpl< PtrType >::count(), llvm::SmallVectorBase::empty(), llvm::Value::getType(), I, llvm::SmallPtrSetImpl< PtrType >::insert(), llvm::User::operands(), llvm::SmallVectorImpl< T >::pop_back_val(), llvm::SmallVectorTemplateBase< T, isPodLike< T >::value >::push_back(), and llvm::SPII::Store.

◆ isTreeTinyAndNotFullyVectorizable()

bool BoUpSLP::isTreeTinyAndNotFullyVectorizable ( )
Returns
True if the VectorizableTree is both tiny and not fully vectorizable. We do not vectorize such trees.

Definition at line 2252 of file SLPVectorizer.cpp.

References assert(), and MinTreeSize.

◆ optimizeGatherSequence()

void BoUpSLP::optimizeGatherSequence ( )

◆ shouldReorder()

bool llvm::slpvectorizer::BoUpSLP::shouldReorder ( ) const
inline
Returns
true if it is beneficial to reverse the vector order.

Definition at line 603 of file SLPVectorizer.cpp.

References llvm::computeMinimumValueSizes().

◆ vectorizeTree() [1/2]

Value * BoUpSLP::vectorizeTree ( )

Vectorize the tree that starts with the elements in VL.

Returns the vectorized root.

Definition at line 3157 of file SLPVectorizer.cpp.

◆ vectorizeTree() [2/2]

Value * BoUpSLP::vectorizeTree ( ExtraValueToDebugLocsMap ExternallyUsedValues)

Friends And Related Function Documentation

◆ DOTGraphTraits< BoUpSLP *>

friend struct DOTGraphTraits< BoUpSLP * >
friend

Definition at line 987 of file SLPVectorizer.cpp.

◆ GraphTraits< BoUpSLP *>

friend struct GraphTraits< BoUpSLP * >
friend

Definition at line 986 of file SLPVectorizer.cpp.

◆ operator<<

raw_ostream& operator<< ( raw_ostream os,
const BoUpSLP::ScheduleData &  SD 
)
friend

Definition at line 979 of file SLPVectorizer.cpp.


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