1 files changed, 32 insertions, 0 deletions
diff --git a/test/SemaTemplate/instantiation-backtrace.cpp b/test/SemaTemplate/instantiation-backtrace.cpp
new file mode 100644
index 000000000000..869662268dd2
--- /dev/null
+++ b/test/SemaTemplate/instantiation-backtrace.cpp
@@ -0,0 +1,32 @@
+// RUN: clang-cc -fsyntax-only -verify %s
+template<typename T> struct A; // expected-note 4{{template is declared here}}
+
+template<typename T> struct B : A<T*> { }; // expected-error{{implicit instantiation of undefined template}} \
+// expected-error{{implicit instantiation of undefined template 'struct A<X *>'}}
+
+template<typename T> struct C : B<T> { } ; // expected-note{{instantiation of template class}}
+
+template<typename T> struct D : C<T> { }; // expected-note{{instantiation of template class}}
+
+template<typename T> struct E : D<T> { }; // expected-note{{instantiation of template class}}
+
+template<typename T> struct F : E<T(T)> { }; // expected-note{{instantiation of template class}}
+
+void f() {
+ (void)sizeof(F<int>); // expected-note{{instantiation of template class}}
+}
+
+typedef struct { } X;
+
+void g() {
+  (void)sizeof(B<X>); // expected-note{{in instantiation of template class 'struct B<X>' requested here}}
+}
+
+template<typename T> 
+struct G : A<T>, // expected-error{{implicit instantiation of undefined template 'struct A<int>'}}
+  A<T*> // expected-error{{implicit instantiation of undefined template 'struct A<int *>'}}
+  { };
+
+void h() {
+  (void)sizeof(G<int>); // expected-note{{in instantiation of template class 'struct G<int>' requested here}}
+}