First initialize DAG otherwise dwarf writer is used uninitialized.
Duncan spotted this. Thanks!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63641 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index c342115..82cc326 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -787,7 +787,7 @@
 }
 
 SelectionDAG::SelectionDAG(TargetLowering &tli, FunctionLoweringInfo &fli)
-  : TLI(tli), FLI(fli),
+  : TLI(tli), FLI(fli), DW(0),
     EntryNode(ISD::EntryToken, getVTList(MVT::Other)),
     Root(getEntryNode()) {
   AllNodes.push_back(&EntryNode);