diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 21:55:13 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 21:55:13 +0000 |
| commit | b96995b67f15110f39c41149543e19c8189abdaf (patch) | |
| tree | 1971f6467f0c9a77b68ee72bcba9b89bbea52f08 /llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | |
| parent | fa0a39b7ea7d26d220d018044055197a5284f2b5 (diff) | |
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 49c922f560faf..2530beabac818 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -18878,7 +18878,7 @@ SDValue DAGCombiner::visitVECTOR_SHUFFLE(SDNode *N) { // build_vector. if (SVN->isSplat() && SVN->getSplatIndex() < (int)NumElts) { int SplatIndex = SVN->getSplatIndex(); - if (TLI.isExtractVecEltCheap(VT, SplatIndex) && + if (N0.hasOneUse() && TLI.isExtractVecEltCheap(VT, SplatIndex) && TLI.isBinOp(N0.getOpcode()) && N0.getNode()->getNumValues() == 1) { // splat (vector_bo L, R), Index --> // splat (scalar_bo (extelt L, Index), (extelt R, Index)) |