llvm-project

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// RUN: %clang_cc1 -std=c++11 -fsyntax-only -fobjc-arc -verify -fblocks -Wpessimizing-move -Wredundant-move %s
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// definitions for std::move
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namespace std {
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inline namespace foo {
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template <class T> struct remove_reference { typedef T type; };
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template <class T> struct remove_reference<T&> { typedef T type; };
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template <class T> struct remove_reference<T&&> { typedef T type; };
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template <class T> typename remove_reference<T>::type &&move(T &&t);
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}
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}
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class MoveOnly {
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public:
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  MoveOnly() { }
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  MoveOnly(MoveOnly &&) = default; // expected-note 2 {{copy constructor is implicitly deleted}}
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  MoveOnly &operator=(MoveOnly &&) = default;
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  ~MoveOnly();
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};
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void copyInit() {
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  __block MoveOnly temp;
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  MoveOnly temp2 = temp; // expected-error {{call to implicitly-deleted copy constructor of 'MoveOnly'}}
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  MoveOnly temp3 = std::move(temp); // ok
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}
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MoveOnly errorOnCopy() {
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  __block MoveOnly temp;
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  return temp; // expected-error {{call to implicitly-deleted copy constructor of 'MoveOnly'}}
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}
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MoveOnly dontWarnOnMove() {
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  __block MoveOnly temp;
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  return std::move(temp); // ok
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}
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class MoveOnlySub : public MoveOnly {};
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MoveOnly dontWarnOnMoveSubclass() {
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  __block MoveOnlySub temp;
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  return std::move(temp); // ok
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}
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