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...a nice-to-have, it doesn't seem necessary, and seems clearly like a significant extension that shouldn't be cherry-picked late into the release. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20131119/1e688ab3/attachment.html>

I don't have a strong opinion on how we fix it, but I think it's really important to do something and get it done for the 3.4 release. Here's what I would do: - implement Quentin's previous proposal for back-end diagnostics (and add a diagnostic handler to Apple's linker), so that we can warn about out-of-date debug info - add a version number to the debug info metadata -