1 files changed, 24 insertions, 0 deletions
diff --git a/clang/test/CXX/basic/basic.lookup/basic.lookup.argdep/p2.cpp b/clang/test/CXX/basic/basic.lookup/basic.lookup.argdep/p2.cpp
index f5ad68b75bd..df9a2cd14cd 100644
--- a/clang/test/CXX/basic/basic.lookup/basic.lookup.argdep/p2.cpp
+++ b/clang/test/CXX/basic/basic.lookup/basic.lookup.argdep/p2.cpp
@@ -108,3 +108,27 @@ namespace test6 {
     test6_function(args);
   }
 }
+
+// PR13682: we might need to instantiate class temploids.
+namespace test7 {
+  namespace inner {
+    class A {};
+    void test7_function(A &);
+  }
+  template <class T> class B : public inner::A {};
+
+  void test(B<int> &ref) {
+    test7_function(ref);
+  }
+}
+
+// Like test7, but ensure we don't complain if the type is properly
+// incomplete.
+namespace test8 {
+  template <class T> class B;
+  void test8_function(B<int> &);
+
+  void test(B<int> &ref) {
+    test8_function(ref);
+  }
+}