majnemer added a comment.
Hmm, I'm not so sure this will work with constexpr:
#include <stdio.h>
struct __declspec(dllimport) S {
virtual void fn() const {printf("%s\n", "hi");}
constexpr S() = default;
};
constexpr S s;
auto &x = s;
int main() {
x.fn();
}
Before my change we would reference the imported vftable symbol from the .rdata
section which will fail at link time.
IIRC, MSVC will miscompile this example.
Your change, if I understand correctly, will cause us to import the vftable
symbol which would cause this example to break again.
http://reviews.llvm.org/D22034
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