theraven added a comment. I'd like to. The test case from the original bug report was very large but I'm not sure how to trigger this with anything comprehensibly small. You need something where the callee is responsible for destroying the argument and I'm not sure what combination of properties / ABIs results in that. The original test was `-(void)foo:(std::string)aString` on the MSVC ABI, but I don't know how much of the Visual Studio `std::string` implementation is necessary to trigger this behaviour. Is it just a non-trivial destructor?
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