forked from OSchip/llvm-project
113 lines
3.3 KiB
C++
113 lines
3.3 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11
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void __attribute__((trivial_abi)) foo(); // expected-warning {{'trivial_abi' attribute only applies to classes}}
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// Should not crash.
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template <class>
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class __attribute__((trivial_abi)) a { a(a &&); };
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struct [[clang::trivial_abi]] S0 {
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int a;
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};
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struct __attribute__((trivial_abi)) S1 {
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int a;
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};
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struct __attribute__((trivial_abi)) S3 { // expected-warning {{'trivial_abi' cannot be applied to 'S3'}} expected-note {{is polymorphic}}
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virtual void m();
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};
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struct S3_2 {
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virtual void m();
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} __attribute__((trivial_abi)); // expected-warning {{'trivial_abi' cannot be applied to 'S3_2'}} expected-note {{is polymorphic}}
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struct __attribute__((trivial_abi)) S3_3 { // expected-warning {{'trivial_abi' cannot be applied to 'S3_3'}} expected-note {{has a field of a non-trivial class type}}
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S3_3(S3_3 &&);
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S3_2 s32;
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};
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// Diagnose invalid trivial_abi even when the type is templated because it has a non-trivial field.
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template <class T>
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struct __attribute__((trivial_abi)) S3_4 { // expected-warning {{'trivial_abi' cannot be applied to 'S3_4'}} expected-note {{has a field of a non-trivial class type}}
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S3_4(S3_4 &&);
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S3_2 s32;
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};
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struct S4 {
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int a;
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};
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struct __attribute__((trivial_abi)) S5 : public virtual S4 { // expected-warning {{'trivial_abi' cannot be applied to 'S5'}} expected-note {{has a virtual base}}
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};
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struct __attribute__((trivial_abi)) S9 : public S4 {
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};
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struct __attribute__((trivial_abi(1))) S8 { // expected-error {{'trivial_abi' attribute takes no arguments}}
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int a;
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};
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// Do not warn about deleted ctors when 'trivial_abi' is used to annotate a template class.
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template <class T>
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struct __attribute__((trivial_abi)) S10 {
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T p;
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};
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S10<int *> p1;
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template <class T>
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struct S14 {
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T a;
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};
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template <class T>
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struct __attribute__((trivial_abi)) S15 : S14<T> {
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};
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S15<int> s15;
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template <class T>
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struct __attribute__((trivial_abi)) S16 {
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S14<T> a;
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};
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S16<int> s16;
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template <class T>
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struct __attribute__((trivial_abi)) S17 {
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};
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S17<int> s17;
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namespace deletedCopyMoveConstructor {
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struct __attribute__((trivial_abi)) CopyMoveDeleted { // expected-warning {{'trivial_abi' cannot be applied to 'CopyMoveDeleted'}} expected-note {{copy constructors and move constructors are all deleted}}
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CopyMoveDeleted(const CopyMoveDeleted &) = delete;
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CopyMoveDeleted(CopyMoveDeleted &&) = delete;
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};
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struct __attribute__((trivial_abi)) S18 { // expected-warning {{'trivial_abi' cannot be applied to 'S18'}} expected-note {{copy constructors and move constructors are all deleted}}
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CopyMoveDeleted a;
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};
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struct __attribute__((trivial_abi)) CopyDeleted {
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CopyDeleted(const CopyDeleted &) = delete;
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CopyDeleted(CopyDeleted &&) = default;
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};
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struct __attribute__((trivial_abi)) MoveDeleted {
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MoveDeleted(const MoveDeleted &) = default;
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MoveDeleted(MoveDeleted &&) = delete;
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};
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struct __attribute__((trivial_abi)) S19 { // expected-warning {{'trivial_abi' cannot be applied to 'S19'}} expected-note {{copy constructors and move constructors are all deleted}}
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CopyDeleted a;
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MoveDeleted b;
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};
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// This is fine since the move constructor isn't deleted.
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struct __attribute__((trivial_abi)) S20 {
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int &&a; // a member of rvalue reference type deletes the copy constructor.
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};
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} // namespace deletedCopyMoveConstructor
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