| 1 | // RUN: %clang_cc1 %s -fsyntax-only -verify -triple %itanium_abi_triple -Wweak-vtables -Wweak-template-vtables |
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| 2 | // |
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| 3 | // Check that this warning is disabled on MS ABI targets which don't have key |
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| 4 | // functions. |
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| 5 | // RUN: %clang_cc1 %s -fsyntax-only -triple %ms_abi_triple -Werror -Wweak-vtables -Wweak-template-vtables |
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| 6 | |
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| 7 | struct A { // expected-warning {{'A' has no out-of-line virtual method definitions; its vtable will be emitted in every translation unit}} |
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| 8 | virtual void f() { } |
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| 9 | }; |
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| 10 | |
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| 11 | template<typename T> struct B { |
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| 12 | virtual void f() { } |
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| 13 | }; |
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| 14 | |
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| 15 | namespace { |
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| 16 | struct C { |
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| 17 | virtual void f() { } |
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| 18 | }; |
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| 19 | } |
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| 20 | |
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| 21 | void f() { |
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| 22 | struct A { |
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| 23 | virtual void f() { } |
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| 24 | }; |
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| 25 | |
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| 26 | A a; |
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| 27 | } |
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| 28 | |
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| 29 | // Use the vtables |
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| 30 | void uses_abc() { |
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| 31 | A a; |
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| 32 | B<int> b; |
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| 33 | C c; |
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| 34 | } |
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| 35 | |
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| 36 | // <rdar://problem/9979458> |
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| 37 | class Parent { |
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| 38 | public: |
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| 39 | Parent() {} |
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| 40 | virtual ~Parent(); |
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| 41 | virtual void * getFoo() const = 0; |
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| 42 | }; |
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| 43 | |
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| 44 | class Derived : public Parent { |
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| 45 | public: |
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| 46 | Derived(); |
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| 47 | void * getFoo() const; |
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| 48 | }; |
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| 49 | |
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| 50 | class VeryDerived : public Derived { // expected-warning{{'VeryDerived' has no out-of-line virtual method definitions; its vtable will be emitted in every translation unit}} |
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| 51 | public: |
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| 52 | void * getFoo() const { return 0; } |
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| 53 | }; |
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| 54 | |
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| 55 | Parent::~Parent() {} |
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| 56 | |
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| 57 | void uses_derived() { |
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| 58 | Derived d; |
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| 59 | VeryDerived vd; |
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| 60 | } |
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| 61 | |
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| 62 | template<typename T> struct TemplVirt { |
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| 63 | virtual void f(); |
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| 64 | }; |
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| 65 | |
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| 66 | template class TemplVirt<float>; // expected-warning{{explicit template instantiation 'TemplVirt<float>' will emit a vtable in every translation unit}} |
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| 67 | |
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| 68 | template<> struct TemplVirt<bool> { |
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| 69 | virtual void f(); |
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| 70 | }; |
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| 71 | |
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| 72 | template<> struct TemplVirt<long> { // expected-warning{{'TemplVirt<long>' has no out-of-line virtual method definitions; its vtable will be emitted in every translation unit}} |
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| 73 | virtual void f() {} |
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| 74 | }; |
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| 75 | |
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| 76 | void uses_templ() { |
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| 77 | TemplVirt<float> f; |
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| 78 | TemplVirt<bool> b; |
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| 79 | TemplVirt<long> l; |
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| 80 | } |
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| 81 | |
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