diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index ec25d7c5ecc..44e92b4ec08 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -2393,8 +2393,9 @@ static bool isVectorReductionOp(const User *I) { // ElemNumToReduce / 2 elements in another vector. unsigned ResultElements = ShufInst->getType()->getVectorNumElements(); - ElemNumToReduce = ResultElements <= ElemNumToReduce ? ResultElements - : ElemNumToReduce; + if (ResultElements < ElemNum) + return false; + if (ElemNumToReduce == 1) return false; if (!isa<UndefValue>(U->getOperand(1))) @@ -2407,8 +2408,7 @@ static bool isVectorReductionOp(const User *I) { return false; // There is only one user of this ShuffleVector instruction, which - // must - // be a reduction operation. + // must be a reduction operation. if (!U->hasOneUse()) return false; |
