[PATCH] D30913: [NFC] Feature generic options to setup start/stop-after/before

[Quentin Colombet via llvm-commits]

> On Jul 27, 2017, at 3:31 PM, Matthias Braun via Phabricator <reviews at reviews.llvm.org> wrote:
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> MatzeB added a comment.
> 
> In https://reviews.llvm.org/D30913#823281, @MatzeB wrote:
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>> In https://reviews.llvm.org/D30913#823248, @tstellar wrote:
>> 
>>> It would be nice to get this into the 5.0 release, there have been a few times I've needed this functionality for debugging.
>> 
>> 
>> Note that in the current form it's not magically working for any frontend like you would expect: The MIR printing and verification at the end of a pipeline or loading a MIR file at the beginning of a pipeline is still done in `llc` even with this patch and would need to replicate that code in other frontends.
>> (If you're gonna adapt your frontends anyway, then you can do that even without this pass :)
> 
> 
> Just reread the code and actually the MIR printing at the end of the pipeline (in -stop-xxx mode) is there.

Yeah, that was actually the motivation for looking into that in the first place :).

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> https://reviews.llvm.org/D30913
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>