LLVM 19.0.0git
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The group of interleaved loads/stores sharing the same stride and close to each other. More...
#include "llvm/Analysis/VectorUtils.h"
Public Member Functions | |
InterleaveGroup (uint32_t Factor, bool Reverse, Align Alignment) | |
InterleaveGroup (InstTy *Instr, int32_t Stride, Align Alignment) | |
bool | isReverse () const |
uint32_t | getFactor () const |
Align | getAlign () const |
uint32_t | getNumMembers () const |
bool | insertMember (InstTy *Instr, int32_t Index, Align NewAlign) |
Try to insert a new member Instr with index Index and alignment NewAlign . | |
InstTy * | getMember (uint32_t Index) const |
Get the member with the given index Index . | |
uint32_t | getIndex (const InstTy *Instr) const |
Get the index for the given member. | |
InstTy * | getInsertPos () const |
void | setInsertPos (InstTy *Inst) |
void | addMetadata (InstTy *NewInst) const |
Add metadata (e.g. | |
bool | requiresScalarEpilogue () const |
Returns true if this Group requires a scalar iteration to handle gaps. | |
void | addMetadata (Instruction *NewInst) const |
The group of interleaved loads/stores sharing the same stride and close to each other.
Each member in this group has an index starting from 0, and the largest index should be less than interleaved factor, which is equal to the absolute value of the access's stride.
E.g. An interleaved load group of factor 4: for (unsigned i = 0; i < 1024; i+=4) { a = A[i]; // Member of index 0 b = A[i+1]; // Member of index 1 d = A[i+3]; // Member of index 3 ... }
An interleaved store group of factor 4: for (unsigned i = 0; i < 1024; i+=4) { ... A[i] = a; // Member of index 0 A[i+1] = b; // Member of index 1 A[i+2] = c; // Member of index 2 A[i+3] = d; // Member of index 3 }
Note: the interleaved load group could have gaps (missing members), but the interleaved store group doesn't allow gaps.
Definition at line 444 of file VectorUtils.h.
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Definition at line 446 of file VectorUtils.h.
References llvm::Reverse.
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Definition at line 450 of file VectorUtils.h.
References assert().
void llvm::InterleaveGroup< Instruction >::addMetadata | ( | Instruction * | NewInst | ) | const |
Definition at line 1480 of file VectorUtils.cpp.
References llvm::propagateMetadata().
void InterleaveGroup::addMetadata | ( | InstTy * | NewInst | ) | const |
Add metadata (e.g.
alias info) from the instructions in this group to NewInst
.
FIXME: this function currently does not add noalias metadata a'la addNewMedata. To do that we need to compute the intersection of the noalias info from all members.
Definition at line 1474 of file VectorUtils.cpp.
References llvm_unreachable.
Referenced by llvm::InnerLoopVectorizer::vectorizeInterleaveGroup().
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Definition at line 461 of file VectorUtils.h.
Referenced by llvm::InnerLoopVectorizer::vectorizeInterleaveGroup().
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Definition at line 460 of file VectorUtils.h.
Referenced by llvm::InterleavedAccessInfo::analyzeInterleaving(), llvm::createBitMaskForGaps(), llvm::InterleaveGroup< InstTy >::requiresScalarEpilogue(), llvm::LoopVectorizationCostModel::setWideningDecision(), and llvm::InnerLoopVectorizer::vectorizeInterleaveGroup().
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Get the index for the given member.
Unlike the key in the member map, the index starts from 0.
Definition at line 521 of file VectorUtils.h.
References I, and llvm_unreachable.
Referenced by llvm::InterleavedAccessInfo::analyzeInterleaving(), and llvm::InnerLoopVectorizer::vectorizeInterleaveGroup().
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Definition at line 530 of file VectorUtils.h.
Referenced by llvm::LoopVectorizationCostModel::setWideningDecision(), and llvm::InnerLoopVectorizer::vectorizeInterleaveGroup().
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Get the member with the given index Index
.
Definition at line 514 of file VectorUtils.h.
References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::lookup().
Referenced by llvm::InterleavedAccessInfo::analyzeInterleaving(), llvm::createBitMaskForGaps(), llvm::InterleaveGroup< InstTy >::requiresScalarEpilogue(), llvm::LoopVectorizationCostModel::setWideningDecision(), and llvm::InnerLoopVectorizer::vectorizeInterleaveGroup().
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Definition at line 462 of file VectorUtils.h.
References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::size().
Referenced by llvm::InterleavedAccessInfo::analyzeInterleaving(), and llvm::createBitMaskForGaps().
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Try to insert a new member Instr
with index Index
and alignment NewAlign
.
The index is related to the leader and it could be negative if it is the new leader.
Definition at line 469 of file VectorUtils.h.
References llvm::checkedAdd(), llvm::checkedSub(), and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::contains().
Referenced by llvm::InterleavedAccessInfo::analyzeInterleaving().
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Definition at line 459 of file VectorUtils.h.
Referenced by llvm::InterleavedAccessInfo::analyzeInterleaving(), llvm::createBitMaskForGaps(), llvm::InterleaveGroup< InstTy >::requiresScalarEpilogue(), and llvm::InnerLoopVectorizer::vectorizeInterleaveGroup().
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Returns true if this Group requires a scalar iteration to handle gaps.
Definition at line 542 of file VectorUtils.h.
References assert(), llvm::InterleaveGroup< InstTy >::getFactor(), llvm::InterleaveGroup< InstTy >::getMember(), and llvm::InterleaveGroup< InstTy >::isReverse().
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Definition at line 531 of file VectorUtils.h.
Referenced by llvm::InterleavedAccessInfo::analyzeInterleaving().