commit 3dec33af58c8392159bd355c6c8ae2425c98c0d7
author Chris Lattner <sabre@nondot.org> Mon Nov 19 20:21:32 2007 +0000
committer Chris Lattner <sabre@nondot.org> Mon Nov 19 20:21:32 2007 +0000
tree 155c96ffb851ef11924d6c173ef6bbff95dd5d5a
parent cb542ae902d66bd3aafcb610cd9d9635cfe6f12b

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

lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index c6b4662..e343a0e 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -6265,6 +6265,10 @@
     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);