https://bugs.llvm.org/show_bug.cgi?id=45342
Bug ID: 45342
Summary: Regression: Linker error: Required destructor
Product: clang
Version: 10.0
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected]
// C:\LLVM_9_0_0\bin\clang-cl.exe /c /EHsc /std:c++17 -w t.cpp /Fot_09.obj
// C:\LLVM_10_0_0\bin\clang-cl.exe /c /EHsc /std:c++17 -w t.cpp /Fot_10.obj
// dumpbin.exe /symbols t_09.obj >t_09.symbols
// dumpbin.exe /symbols t_10.obj >t_10.symbols
class I {
public:
virtual ~I() = default;
};
class B : public virtual I {
public:
virtual ~B() = default;
};
class C final : public virtual I, public B {
public:
explicit C();
virtual ~C();
};
void f() {
auto c = new C{};
delete c;
}
Missing symbol when trying to link ~I
Part of t_10.symbols:
020 00000000 UNDEF notype External | ??1I@@UEAA@XZ (public: virtual
__cdecl I::~I(void))
In LLVM 9.0.0 this symbol ain't required to link, in LLVM 10.0.0 it suddently
becomes required.
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