diff options
Diffstat (limited to 'lib/Transforms/Vectorize/LoadStoreVectorizer.cpp')
| -rw-r--r-- | lib/Transforms/Vectorize/LoadStoreVectorizer.cpp | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp b/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp index c44a393cf846..4409d7a404f8 100644 --- a/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp +++ b/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp @@ -432,9 +432,12 @@ Vectorizer::splitOddVectorElts(ArrayRef<Instruction *> Chain, unsigned ElementSizeBytes = ElementSizeBits / 8; unsigned SizeBytes = ElementSizeBytes * Chain.size(); unsigned NumLeft = (SizeBytes - (SizeBytes % 4)) / ElementSizeBytes; - if (NumLeft == Chain.size()) - --NumLeft; - else if (NumLeft == 0) + if (NumLeft == Chain.size()) { + if ((NumLeft & 1) == 0) + NumLeft /= 2; // Split even in half + else + --NumLeft; // Split off last element + } else if (NumLeft == 0) NumLeft = 1; return std::make_pair(Chain.slice(0, NumLeft), Chain.slice(NumLeft)); } @@ -588,7 +591,7 @@ Vectorizer::collectInstructions(BasicBlock *BB) { continue; // Make sure all the users of a vector are constant-index extracts. - if (isa<VectorType>(Ty) && !all_of(LI->users(), [LI](const User *U) { + if (isa<VectorType>(Ty) && !all_of(LI->users(), [](const User *U) { const ExtractElementInst *EEI = dyn_cast<ExtractElementInst>(U); return EEI && isa<ConstantInt>(EEI->getOperand(1)); })) @@ -622,7 +625,7 @@ Vectorizer::collectInstructions(BasicBlock *BB) { if (TySize > VecRegSize / 2) continue; - if (isa<VectorType>(Ty) && !all_of(SI->users(), [SI](const User *U) { + if (isa<VectorType>(Ty) && !all_of(SI->users(), [](const User *U) { const ExtractElementInst *EEI = dyn_cast<ExtractElementInst>(U); return EEI && isa<ConstantInt>(EEI->getOperand(1)); })) |