[llvm-dev] Saving private DebugInfo

[Dmitriy Matveev via llvm-dev]

any chance to get an opinion for this?

On 25 November 2016 at 01:31, Mehdi Amini <mehdi.amini at apple.com> wrote:

> I’ve been in need of a cl::opt to control this behavior and force
> preserving debug info, it would be useful for testing at least. That
> wouldn’t be a "first class” API though.
>
> CC Adrian for his opinion.
>
> —
> Mehdi
>
> On Nov 24, 2016, at 2:25 PM, Dmitriy Matveev via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
> Hi all,
>
> Sometimes llvm::UpgradeDebugInfo
> <http://llvm.org/docs/doxygen/html/namespacellvm.html#ad3c29183c5faa7f5a352807af8aca268> drops
> debug info which is pretty compatible with recent llvm version (
> http://stackoverflow.com/questions/27023713/missing-
> debug-metadata-in-llvm-after-xcode-update ) and sometimes it drops
> something really outdated, but acceptable for me. In both cases I want to
> keep it, but AFAIK there is no API for this.
>
> I've tried to strip libLLVMCore from that method and it forked for me just
> fine, but something has changed in llvm 3.9 and now I can't link with
> against hacked libLLVMCore. ( https://travis-ci.org/
> okutane/sanity/jobs/169662912 line 979 )
>
> What can I do? The best solution for me would be "configuration" of how LLVMParseIRInContext
> deals with "outdated" debug info, but I'm open to any workarounds. :D
>
> Best regards, Dmitry.
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>
>
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