[llvm-commits] [llvm] r44239 - /llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

[Chris Lattner]

Author: lattner
Date: Mon Nov 19 14:21:32 2007
New Revision: 44239

URL: http://llvm.org/viewvc/llvm-project?rev=44239&view=rev
Log:
Implement splitting of UNDEF nodes. This is the first step towards fixing PR1811

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp?rev=44239&r1=44238&r2=44239&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp Mon Nov 19 14:21:32 2007
@@ -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);