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| author | Chris Lattner <sabre@nondot.org> | 2007-11-19 20:21:32 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-11-19 20:21:32 +0000 |
| commit | daf9bc8eee3eb1bc992480921f50ef1b760f4159 (patch) | |
| tree | 155c96ffb851ef11924d6c173ef6bbff95dd5d5a | |
| parent | f4bc9b180221c139a60b0c3121bd6eedb555b741 (diff) | |
Implement splitting of UNDEF nodes. This is the first step towards fixing PR1811
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44239 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index c6b4662b2b..e343a0e5de 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -6265,6 +6265,10 @@ void SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, Node->dump(&DAG); #endif assert(0 && "Unhandled operation in SplitVectorOp!"); + case ISD::UNDEF: + Lo = DAG.getNode(ISD::UNDEF, NewVT_Lo); + Hi = DAG.getNode(ISD::UNDEF, NewVT_Hi); + break; case ISD::BUILD_PAIR: Lo = Node->getOperand(0); Hi = Node->getOperand(1); |