[LLVMdev] bit code file incompatibility due to debug info changes

[Bob Wilson]

On Nov 19, 2013, at 10:58 AM, Chandler Carruth <chandlerc at google.com> wrote:

> 
> On Tue, Nov 19, 2013 at 10:48 AM, Bob Wilson <bob.wilson at apple.com> wrote:
> 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.
> 
> I agree with everything here being a reasonable step for the 3.4 release except:
>  
> - 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previous proposal for back-end diagnostics (and add a diagnostic handler to Apple's linker), so that we can warn about out-of-date debug info
> 
> I don't think this is important for the release. I don't think open source people have any expectation of stability here, and while it is 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.

OK, that's fair.  As long as we can get it on trunk soon, we can cherry-pick it to an internal release branch.

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