1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index 3af64bb9f1..f52621a80b 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -10501,6 +10501,9 @@ void Sema::MarkFunctionReferenced(SourceLocation Loc, FunctionDecl *Func) {
         if (!Constructor->isUsed(false))
           DefineImplicitMoveConstructor(Loc, Constructor);
       }
+    } else if (Constructor->getInheritedConstructor()) {
+      if (!Constructor->isUsed(false))
+        DefineInheritingConstructor(Loc, Constructor);
     }
 
     MarkVTableUsed(Loc, Constructor->getParent());