1 files changed, 4 insertions, 2 deletions
diff --git a/include/clang/Sema/Lookup.h b/include/clang/Sema/Lookup.h
index e28b847f4ae5a..4f7da851e232b 100644
--- a/include/clang/Sema/Lookup.h
+++ b/include/clang/Sema/Lookup.h
@@ -540,7 +540,7 @@ public:
   }
 
   /// Clears out any current state.
-  void clear() {
+  LLVM_ATTRIBUTE_REINITIALIZES void clear() {
     ResultKind = NotFound;
     Decls.clear();
     if (Paths) deletePaths(Paths);
@@ -709,7 +709,9 @@ private:
 
   // Results.
   LookupResultKind ResultKind = NotFound;
-  AmbiguityKind Ambiguity; // ill-defined unless ambiguous
+  // ill-defined unless ambiguous. Still need to be initialized it will be
+  // copied/moved.
+  AmbiguityKind Ambiguity = {};
   UnresolvedSet<8> Decls;
   CXXBasePaths *Paths = nullptr;
   CXXRecordDecl *NamingClass = nullptr;