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| author | Anton Afanasyev <anton.a.afanasyev@gmail.com> | 2021-05-18 11:30:03 +0300 |
|---|---|---|
| committer | Anton Afanasyev <anton.a.afanasyev@gmail.com> | 2021-05-25 01:35:43 +0300 |
| commit | b2cd89501164ebadcddfd92304fe7b5675e59748 (patch) | |
| tree | f8b3ca709dec031e5486f4e4aaa446ee569de0e2 /llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp | |
| parent | 95cefacfe1c1fe920f22b749f17f630925bd6094 (diff) | |
[SLP] Fix "gathering" of insertelement instructions
For rare exceptional case vector tree node (insertelements for now only)
is marked as `NeedToGather`, this case is processed by patch. Follow-up
of D98714 to fix bug reported here https://reviews.llvm.org/D98714#2764135.
Differential Revision: https://reviews.llvm.org/D102675
Diffstat (limited to 'llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp index 6a0ed7c45506..8de5188de814 100644 --- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp +++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp @@ -3694,6 +3694,8 @@ InstructionCost BoUpSLP::getEntryCost(const TreeEntry *E) { TTI->getShuffleCost(TargetTransformInfo::SK_Broadcast, VecTy, None, 0); } + if (isa<InsertElementInst>(VL[0])) + return InstructionCost::getInvalid(); if (E->getOpcode() == Instruction::ExtractElement && allSameType(VL) && allSameBlock(VL)) { SmallVector<int> Mask; |