diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index d8ac4a52946..da2ca8851e3 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -2675,7 +2675,8 @@ SDValue DAGCombiner::visitMUL(SDNode *N) { } // fold (mul x, (1 << c)) -> x << c if (isConstantOrConstantVector(N1, /*NoOpaques*/ true) && - DAG.isKnownToBeAPowerOfTwo(N1)) { + DAG.isKnownToBeAPowerOfTwo(N1) && + (!VT.isVector() || Level <= AfterLegalizeVectorOps)) { SDLoc DL(N); SDValue LogBase2 = BuildLogBase2(N1, DL); AddToWorklist(LogBase2.getNode()); |
