vectorisation code?

Thomas Miedema thomasmiedema at
Fri Jan 22 14:23:56 UTC 2016

We could make all of hackage be part of the ghc build, and it would turn up
bugs. But we don't do that either. Why is dph special?

On Fri, Jan 22, 2016 at 3:17 PM, Geoffrey Mainland <mainland at>

> On 1/22/16 8:05 AM, Ben Gamari wrote:
> > Manuel M T Chakravarty <chak at> writes: > >> The way I
> see it, the main cost of keeping DPH around is to handle
> >> breakages such as that with vector. I can’t promise to address those
> >> in a timely manner, which is why I agreed to disable/remove DPH. >>
> >> However, as Geoff stepped forward, this issue is solved. As for the
> >> overhead in compile time etc, I don’t think, it is that much of a >>
> deal. During development, most compiles runs are incremental anyway. >>
> > Judging by the VCS history it seems that nothing happened in response
> to > this thread. Geoff, do you see yourself having time to pick this up
> in > the near future? > > If not, perhaps we should pick up this matter
> again and seriously > consider parking this code in a branch until
> someone is able to pick it > up again. > > Cheers, > > - Ben
> Yes, I am willing to do the work to get DPH back into the build in the
> near future. However, that only makes sense if we are willing to build
> DPH regularly. Also, I can't be solely responsible for all breakage
> resulting from DPH; DPH has regularly exposed bugs in the past, which is
> one reason to get it back into the regular build, but I can't promise to
> fix all problems that might be exposed by DPH in the future :)
> If I put a patch on Phab that updates DPH, are we willing to make DPH
> part of the regular validation script again?
> Cheers,
> Geoff
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