2 files changed, 9 insertions, 0 deletions
diff --git a/clang/test/Modules/Inputs/submodules-merge-defs/defs.h b/clang/test/Modules/Inputs/submodules-merge-defs/defs.h
index e4c86d80ba6..670c400ae3b 100644
--- a/clang/test/Modules/Inputs/submodules-merge-defs/defs.h
+++ b/clang/test/Modules/Inputs/submodules-merge-defs/defs.h
@@ -103,3 +103,11 @@ namespace RedeclDifferentDeclKind {
   typedef X X;
   using RedeclDifferentDeclKind::X;
 }
+
+namespace Anon {
+  struct X {
+    union {
+      int n;
+    };
+  };
+}
diff --git a/clang/test/Modules/submodules-merge-defs.cpp b/clang/test/Modules/submodules-merge-defs.cpp
index 016b8a8f47a..62cbbd51098 100644
--- a/clang/test/Modules/submodules-merge-defs.cpp
+++ b/clang/test/Modules/submodules-merge-defs.cpp
@@ -104,6 +104,7 @@ template<typename T, int N, template<typename> class K> struct J;
 J<> post_j2;
 FriendDefArg::Y<int> friend_def_arg;
 FriendDefArg::D<> friend_def_arg_d;
+int post_anon_x_n = Anon::X().n;
 
 MergeFunctionTemplateSpecializations::X<int>::Q<char> xiqc;