1 files changed, 15 insertions, 0 deletions

diff --git a/test/SemaCXX/templated-friend-decl.cpp b/test/SemaCXX/templated-friend-decl.cpp
new file mode 100644
index 000000000000..c0034cd72f78
--- /dev/null
+++ b/test/SemaCXX/templated-friend-decl.cpp
@@ -0,0 +1,15 @@
+// RUN: %clang_cc1 %s
+
+template <typename T>
+struct Foo {
+  template <typename U>
+  struct Bar {};
+
+  // The templated declaration for class Bar should not be instantiated when
+  // Foo<int> is. This is to protect against PR5848; for now, this "parses" but
+  // requires a rewrite of the templated friend code to be properly fixed.
+  template <typename U>
+  friend struct Bar;
+};
+
+Foo<int> x;