Add support for ISD::SELECT in SplitVectorOp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43072 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index dfb7f30..da2c1dc 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -6225,6 +6225,26 @@
}
break;
}
+ case ISD::SELECT: {
+ SDOperand Cond = Node->getOperand(0);
+
+ SDOperand LL, LH, RL, RH;
+ SplitVectorOp(Node->getOperand(1), LL, LH);
+ SplitVectorOp(Node->getOperand(2), RL, RH);
+
+ if (MVT::isVector(Cond.getValueType())) {
+ // Handle a vector merge.
+ SDOperand CL, CH;
+ SplitVectorOp(Cond, CL, CH);
+ Lo = DAG.getNode(Node->getOpcode(), NewVT, CL, LL, RL);
+ Hi = DAG.getNode(Node->getOpcode(), NewVT, CH, LH, RH);
+ } else {
+ // Handle a simple select with vector operands.
+ Lo = DAG.getNode(Node->getOpcode(), NewVT, Cond, LL, RL);
+ Hi = DAG.getNode(Node->getOpcode(), NewVT, Cond, LH, RH);
+ }
+ break;
+ }
case ISD::ADD:
case ISD::SUB:
case ISD::MUL: