1 files changed, 5 insertions, 1 deletions
diff --git a/include/clang/AST/DeclGroup.h b/include/clang/AST/DeclGroup.h
index 63cdac594920..cda6ae520af4 100644
--- a/include/clang/AST/DeclGroup.h
+++ b/include/clang/AST/DeclGroup.h
@@ -26,7 +26,11 @@ class DeclGroupIterator;
 
 class DeclGroup {
   // FIXME: Include a TypeSpecifier object.
-  unsigned NumDecls;
+  union {
+    unsigned NumDecls;
+
+    Decl *Aligner;
+  };
 
 private:
   DeclGroup() : NumDecls(0) {}