1 // RUN: %clang_cc1 -std=c++11 -verify %s -ftemplate-depth 2
2 
3 // PR9793
4 template<typename T> auto f(T t) -> decltype(f(t)); // \
5 // expected-error {{recursive template instantiation exceeded maximum depth of 2}} \
6 // expected-note 2 {{while substituting}}
7 
8 struct S {};
9 int k = f(S{}); // expected-note {{while substituting}}
10