| 1 | // RUN: %clang_cc1 -mconstructor-aliases %s -triple x86_64-windows-msvc -fms-extensions -emit-llvm -o - | FileCheck %s |
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| 2 | |
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| 3 | // PR32990 |
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| 4 | |
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| 5 | // Introduces the virtual destructor. We should use the base destructor |
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| 6 | // directly, no thunk needed. |
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| 7 | struct __declspec(dllimport) ImportIntroVDtor { |
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| 8 | virtual ~ImportIntroVDtor() {} |
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| 9 | }; |
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| 10 | |
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| 11 | struct BaseClass { |
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| 12 | virtual ~BaseClass() {} |
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| 13 | }; |
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| 14 | |
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| 15 | // Non-virtually inherits from a non-dllimport base class. We should again call |
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| 16 | // the derived base constructor directly. No need for the complete (aka vbase) |
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| 17 | // destructor. |
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| 18 | struct __declspec(dllimport) ImportOverrideVDtor : public BaseClass { |
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| 19 | virtual ~ImportOverrideVDtor() {} |
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| 20 | }; |
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| 21 | |
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| 22 | // Virtually inherits from a non-dllimport base class. This time we need to call |
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| 23 | // the complete destructor and emit it inline. It's not exported from the DLL, |
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| 24 | // and it must be emitted. |
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| 25 | struct __declspec(dllimport) ImportVBaseOverrideVDtor |
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| 26 | : public virtual BaseClass { |
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| 27 | virtual ~ImportVBaseOverrideVDtor() {} |
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| 28 | }; |
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| 29 | |
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| 30 | extern "C" void testit() { |
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| 31 | ImportIntroVDtor t1; |
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| 32 | ImportOverrideVDtor t2; |
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| 33 | ImportVBaseOverrideVDtor t3; |
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| 34 | } |
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| 35 | |
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| 36 | // The destructors are called in reverse order of construction. Only the third |
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| 37 | // needs the complete destructor (_D). |
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| 38 | // CHECK-LABEL: define dso_local void @testit() |
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| 39 | // CHECK: call void @"??_DImportVBaseOverrideVDtor@@QEAAXXZ"(%struct.ImportVBaseOverrideVDtor* %{{.*}}) |
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| 40 | // CHECK: call void @"??1ImportOverrideVDtor@@UEAA@XZ"(%struct.ImportOverrideVDtor* %{{.*}}) |
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| 41 | // CHECK: call void @"??1ImportIntroVDtor@@UEAA@XZ"(%struct.ImportIntroVDtor* %{{.*}}) |
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| 42 | |
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| 43 | // CHECK-LABEL: declare dllimport void @"??_DImportVBaseOverrideVDtor@@QEAAXXZ" |
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| 44 | // CHECK-LABEL: declare dllimport void @"??1ImportOverrideVDtor@@UEAA@XZ" |
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| 45 | // CHECK-LABEL: declare dllimport void @"??1ImportIntroVDtor@@UEAA@XZ" |
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| 46 | |
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