Attempt to fix uninitialized SDAG persistent ids detected by MSan

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253422 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h
index 8dfdd9029946f5b06549e8625361daeb44cf0a93..83464a6c9785a17cc363ebcf5c2e6a953b79611d 100644 (file)
--- a/include/llvm/CodeGen/SelectionDAG.h
+++ b/include/llvm/CodeGen/SelectionDAG.h
@@ -215,7 +215,7 @@ class SelectionDAG {
   /// Tracks dbg_value information through SDISel.
   SDDbgInfo *DbgInfo;
 
-  uint16_t NextPersistentId;
+  uint16_t NextPersistentId = 0;
 
 public:
   /// Clients of various APIs that cause global effects on