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// PR c++/57901
// { dg-require-effective-target c++11 }
struct Z {
Z() = default;
Z(Z const&) = default;
constexpr Z(Z&&) {} /* non-trivial (constexpr) move ctor */
};
template<typename T>
constexpr int fn0(T v) { return 0; }
template<typename T>
constexpr int fn (T v) { return fn0(v); }
constexpr auto t0 = fn0(Z()); // OK!
constexpr auto t = fn (Z()); // error! (GCC 4.8.1)
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