[llvm-bugs] [Bug 43471] New: invalid computation of formal linkage with `__declspec` for dllstorage

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=43471

            Bug ID: 43471
           Summary: invalid computation of formal linkage with
                    `__declspec` for dllstorage
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: compnerd at compnerd.org
                CC: blitzrakete at gmail.com, dgregor at apple.com,
                    erik.pilkington at gmail.com, llvm-bugs at lists.llvm.org,
                    richard-llvm at metafoo.co.uk

```
namespace {
    struct tag { };
}

template <typename T>
struct __declspec(dllexport) S {
    static T value;
};

template <typename T>
T S<T>::value = T();

S<tag> s;
```

`s` is given external linkage despite `tag` having internal linkage.

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