[PATCH] Don't emit strong vtable definitions for imported classes with key functions (PR21355)

Hans Wennborg hans at chromium.org
Thu Oct 23 15:01:36 PDT 2014

Hi majnemer,

Clang would previously assert on the following code when targeting MinGW:

  struct __declspec(dllimport) S {
    virtual ~S();
  S::~S() {}

Because ~S is a key function and the class is dllimport, we would try to emit a strong definition of the vtable, with dllimport - which is a conflict. We should not emit strong vtable definitions for imported classes.


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