1 files changed, 61 insertions, 0 deletions
diff --git a/clang/test/PCH/chain-friend-instantiation.cpp b/clang/test/PCH/chain-friend-instantiation.cpp
new file mode 100644
index 0000000..294d979
--- /dev/null
+++ b/clang/test/PCH/chain-friend-instantiation.cpp
@@ -0,0 +1,61 @@
+// RUN: %clang_cc1 %s -ast-print -o - -chain-include %s -chain-include %s
+
+#if !defined(PASS1)
+#define PASS1
+
+template <class T> class TClass;
+
+namespace NS {
+    template <class X, class Y> TClass<X> problematic(X * ptr, const TClass<Y> &src);
+
+    template <class T>
+    class TBaseClass
+    {
+    protected:
+        template <class X, class Y> friend TClass<X> problematic(X * ptr, const TClass<Y> &src);
+    };
+}
+
+template <class T>
+class TClass: public NS::TBaseClass<T>
+{
+public:
+    inline TClass() { }
+};
+
+
+namespace NS {
+    template <class X, class T>
+    TClass<X> problematic(X *ptr, const TClass<T> &src);
+}
+
+template <class X, class T>
+TClass<X> unconst(const TClass<T> &src);
+
+#elif !defined(PASS2)
+#define PASS2
+
+namespace std {
+class s {};
+}
+
+
+typedef TClass<std::s> TStr;
+
+struct crash {
+  TStr str;
+
+  crash(const TClass<std::s> p)
+  {
+    unconst<TStr>(p);
+  }
+};
+
+#else
+
+void f() {
+    const TStr p;
+    crash c(p);
+}
+
+#endif