a90474544e
Windows Itanium aims to use MSVC export and import semantics. Inner class members shouldn't be exported on a dllexport explicit instantiation definition of the outer class, and they shouldn't be imported on a dllimport explicit instantiation declaration of the outer class (instead a local copy should be emitted). We were doing the first but not the second, and this mismatch can lead to link errors. Fix the behavior and add tests for both. Differential Revision: https://reviews.llvm.org/D32213 llvm-svn: 300804
56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
// RUN: %clang_cc1 -emit-llvm -triple i686-windows-itanium -fdeclspec %s -o - | FileCheck %s
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#define JOIN2(x, y) x##y
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#define JOIN(x, y) JOIN2(x, y)
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#define UNIQ(name) JOIN(name, __LINE__)
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#define USEMEMFUNC(class, func) void (class::*UNIQ(use)())() { return &class::func; }
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struct __declspec(dllexport) s {
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void f() {}
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};
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// CHECK: define {{.*}} dllexport {{.*}} @_ZN1saSERKS_
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// CHECK: define {{.*}} dllexport {{.*}} @_ZN1s1fEv
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template <class T>
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class c {
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void f() {}
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};
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template class __declspec(dllexport) c<int>;
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// CHECK: define {{.*}} dllexport {{.*}} @_ZN1cIiEaSERKS0_
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// CHECK: define {{.*}} dllexport {{.*}} @_ZN1cIiE1fEv
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extern template class c<char>;
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template class __declspec(dllexport) c<char>;
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// CHECK: define {{.*}} dllexport {{.*}} @_ZN1cIcEaSERKS0_
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// CHECK: define {{.*}} dllexport {{.*}} @_ZN1cIcE1fEv
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c<double> g;
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template class __declspec(dllexport) c<double>;
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// CHECK: define {{.*}} dllexport {{.*}} @_ZN1cIdEaSERKS0_
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// CHECK: define {{.*}} dllexport {{.*}} @_ZN1cIdE1fEv
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template <class T>
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struct outer {
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void f() {}
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struct inner {
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void f() {}
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};
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};
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template class __declspec(dllexport) outer<int>;
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// CHECK: define {{.*}} dllexport {{.*}} @_ZN5outerIiE1fEv
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// CHECK-NOT: define {{.*}} dllexport {{.*}} @_ZN5outerIiE5inner1fEv
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extern template class __declspec(dllimport) outer<char>;
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USEMEMFUNC(outer<char>, f)
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USEMEMFUNC(outer<char>::inner, f)
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// CHECK: declare dllimport {{.*}} @_ZN5outerIcE1fEv
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// CHECK: define {{.*}} @_ZN5outerIcE5inner1fEv
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