diff options
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp b/llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp index 1e724106991..c0b9b2fc3e5 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp @@ -763,9 +763,10 @@ InstCombiner::EvaluateInDifferentElementOrder(Value *V, ArrayRef<int> Mask) { } } + // If element is not in Mask, no need to handle the operand 1 (element to + // be inserted). Just evaluate values in operand 0 according to Mask. if (!Found) - return UndefValue::get( - VectorType::get(V->getType()->getScalarType(), Mask.size())); + return EvaluateInDifferentElementOrder(I->getOperand(0), Mask); Value *V = EvaluateInDifferentElementOrder(I->getOperand(0), Mask); return InsertElementInst::Create(V, I->getOperand(1), |
