[PATCH] D16083: [bugpoint] Teach bugpoint to reduce MDNodes

[Keno Fischer via llvm-commits]

>
> My intuition is that you're liable to change the crash (rather than
> reduce it) when touching arbitrary metadata like this.  Particularly
> with debug info, this stuff is fairly cross-referential, and a `null`
> reference can have some non-trivial meaning.
>

Well, the idea is that you run the verifier after doing the null
replacement.
As long as the Verifier understands the structure of debug info, the only
cost
you pay is a slightly longer reduction time.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20160111/39503921/attachment.html>