diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 2b65cce970c..aee6455713a 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -10423,6 +10423,10 @@ SDValue DAGCombiner::visitBUILD_VECTOR(SDNode *N) { // operations. If so, and if the EXTRACT_VECTOR_ELT vector inputs come from // at most two distinct vectors, turn this into a shuffle node. + // Only type-legal BUILD_VECTOR nodes are converted to shuffle nodes. + if (!isTypeLegal(VT)) + return SDValue(); + // May only combine to shuffle after legalize if shuffle is legal. if (LegalOperations && !TLI.isOperationLegal(ISD::VECTOR_SHUFFLE, VT)) return SDValue(); @@ -10514,10 +10518,6 @@ SDValue DAGCombiner::visitBUILD_VECTOR(SDNode *N) { VecIn1.getValueType() != VT) return SDValue(); - // Only type-legal BUILD_VECTOR nodes are converted to shuffle nodes. - if (!isTypeLegal(VT)) - return SDValue(); - // Return the new VECTOR_SHUFFLE node. SDValue Ops[2]; Ops[0] = VecIn1;