Fix cppcheck + MSVC analyzer uninitialized member variable warning. NFCI.

llvm-svn: 368888

diff --git a/llvm/include/llvm/Support/GenericDomTree.h b/llvm/include/llvm/Support/GenericDomTree.h
index 9962080..34d8289 100644 (file)
--- a/llvm/include/llvm/Support/GenericDomTree.h
+++ b/llvm/include/llvm/Support/GenericDomTree.h
@@ -242,7 +242,7 @@ protected:
   using DomTreeNodeMapType =
      DenseMap<NodeT *, std::unique_ptr<DomTreeNodeBase<NodeT>>>;
   DomTreeNodeMapType DomTreeNodes;
-  DomTreeNodeBase<NodeT> *RootNode;
+  DomTreeNodeBase<NodeT> *RootNode = nullptr;
   ParentPtr Parent = nullptr;
 
   mutable bool DFSInfoValid = false;