diff options
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 6d59f330048..715f203ba47 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -14918,7 +14918,10 @@ SDValue DAGCombiner::reduceBuildVecExtToExtBuildVec(SDNode *N) { assert(VecVT.getSizeInBits() == VT.getSizeInBits() && "Invalid vector size"); // Check if the new vector type is legal. - if (!isTypeLegal(VecVT)) return SDValue(); + if (!isTypeLegal(VecVT) || + (!TLI.isOperationLegal(ISD::BUILD_VECTOR, VecVT) && + TLI.isOperationLegal(ISD::BUILD_VECTOR, VT))) + return SDValue(); // Make the new BUILD_VECTOR. SDValue BV = DAG.getBuildVector(VecVT, DL, Ops); |
