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// RUN: %clang_cc1 -std=c++11 -verify %s -ftemplate-depth=2
// PR9793
template<typename T> auto f(T t) -> decltype(f(t)); // \
// expected-error {{recursive template instantiation exceeded maximum depth of 2}} \
// expected-note 2 {{while substituting}} \
// expected-note {{use -ftemplate-depth=N to increase recursive template instantiation depth}}
struct S {};
int k = f(S{}); // expected-note {{while substituting}}
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