Merges shuffle masks and emits final shuffle instruction, if required. More...
Public Member Functions | |
| ShuffleCostEstimator (Type *ScalarTy, TargetTransformInfo &TTI, ArrayRef< Value * > VectorizedVals, BoUpSLP &R, SmallPtrSetImpl< Value * > &CheckedExtracts) | |
| Value * | adjustExtracts (const TreeEntry *E, MutableArrayRef< int > Mask, ArrayRef< std::optional< TTI::ShuffleKind > > ShuffleKinds, unsigned NumParts, bool &UseVecBaseAsInput) |
| std::optional< InstructionCost > | needToDelay (const TreeEntry *, ArrayRef< SmallVector< const TreeEntry * > >) const |
Checks if the specified entry E needs to be delayed because of its dependency nodes. | |
| void | add (const TreeEntry &E1, const TreeEntry &E2, ArrayRef< int > Mask) |
| void | add (const TreeEntry &E1, ArrayRef< int > Mask) |
| void | add (Value *V1, Value *V2, ArrayRef< int > Mask) |
| Adds 2 input vectors and the mask for their shuffling. | |
| void | add (Value *V1, ArrayRef< int > Mask, bool ForExtracts=false) |
| Adds another one input vector and the mask for the shuffling. | |
| Value * | gather (ArrayRef< Value * > VL, unsigned MaskVF=0, Value *Root=nullptr) |
| InstructionCost | createFreeze (InstructionCost Cost) |
| InstructionCost | finalize (ArrayRef< int > ExtMask, unsigned VF=0, function_ref< void(Value *&, SmallVectorImpl< int > &)> Action={}) |
| Finalize emission of the shuffles. | |
| ~ShuffleCostEstimator () | |
Detailed Description
Merges shuffle masks and emits final shuffle instruction, if required.
It supports shuffling of 2 input vectors. It implements lazy shuffles emission, when the actual shuffle instruction is generated only if this is actually required. Otherwise, the shuffle instruction emission is delayed till the end of the process, to reduce the number of emitted instructions and further analysis/transformations.
Definition at line 8452 of file SLPVectorizer.cpp.
Constructor & Destructor Documentation
◆ ShuffleCostEstimator()
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inline |
Definition at line 9132 of file SLPVectorizer.cpp.
◆ ~ShuffleCostEstimator()
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inline |
Definition at line 9433 of file SLPVectorizer.cpp.
References assert(), and llvm::SmallVectorBase< Size_T >::empty().
Member Function Documentation
◆ add() [1/4]
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inline |
Definition at line 9272 of file SLPVectorizer.cpp.
References assert(), llvm::SmallVectorImpl< T >::assign(), llvm::SmallVectorImpl< T >::emplace_back(), llvm::SmallVectorBase< Size_T >::empty(), llvm::find_if(), llvm::TargetTransformInfo::getNumberOfParts(), getPartNumElems(), getWidenedType(), Idx, llvm::PoisonMaskElem, and llvm::SmallVectorBase< Size_T >::size().
◆ add() [2/4]
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inline |
Definition at line 9246 of file SLPVectorizer.cpp.
References llvm::all_of(), assert(), llvm::SmallVectorImpl< T >::assign(), llvm::SmallVectorBase< Size_T >::empty(), llvm::find_if(), llvm::TargetTransformInfo::getNumberOfParts(), getPartNumElems(), getWidenedType(), Idx, and llvm::PoisonMaskElem.
◆ add() [3/4]
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inline |
Adds another one input vector and the mask for the shuffling.
Definition at line 9310 of file SLPVectorizer.cpp.
References llvm::all_of(), assert(), llvm::SmallVectorImpl< T >::assign(), llvm::SmallVectorTemplateCommon< T, typename >::back(), llvm::SmallVectorBase< Size_T >::empty(), llvm::enumerate(), llvm::SmallVectorTemplateCommon< T, typename >::front(), llvm::Value::getType(), Idx, if(), P, llvm::PoisonMaskElem, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::SmallVectorBase< Size_T >::size().
◆ add() [4/4]
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inline |
Adds 2 input vectors and the mask for their shuffling.
Definition at line 9292 of file SLPVectorizer.cpp.
References llvm::all_of(), assert(), llvm::enumerate(), llvm::SmallVectorTemplateCommon< T, typename >::front(), P, llvm::PoisonMaskElem, and llvm::SmallVectorBase< Size_T >::size().
◆ adjustExtracts()
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inline |
Definition at line 9138 of file SLPVectorizer.cpp.
References llvm::any_of(), llvm::ArrayRef< T >::size(), and llvm::ArrayRef< T >::take_front().
◆ createFreeze()
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inline |
Definition at line 9401 of file SLPVectorizer.cpp.
◆ finalize()
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inline |
Finalize emission of the shuffles.
Definition at line 9404 of file SLPVectorizer.cpp.
◆ gather()
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inline |
Definition at line 9358 of file SLPVectorizer.cpp.
References assert(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::enumerate(), llvm::SmallVectorTemplateCommon< T, typename >::front(), llvm::ConstantVector::get(), llvm::UndefValue::get(), llvm::PoisonValue::get(), llvm::ElementCount::getFixed(), llvm::Constant::getNullValue(), llvm::FixedVectorType::getNumElements(), llvm::Type::getScalarType(), llvm::ConstantVector::getSplat(), llvm::Value::getType(), I, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::ArrayRef< T >::size(), SLPReVec, llvm::SmallVectorImpl< T >::swap(), and llvm::ArrayRef< T >::take_front().
◆ needToDelay()
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inline |
Checks if the specified entry E needs to be delayed because of its dependency nodes.
Definition at line 9241 of file SLPVectorizer.cpp.
The documentation for this class was generated from the following file:
- lib/Transforms/Vectorize/SLPVectorizer.cpp
