[Haskell] ANNOUNCE: GHC version 7.6.1

Christian Hoener zu Siederdissen choener at tbi.univie.ac.at
Thu Sep 6 22:10:19 CEST 2012

Hi Ian,

thanks for the info about 7.8. Just to be clear, the new codegen
apparently saved my runtimes for the presentation on tuesday. \My\ new
code was slower than my old code. The new code generator fixed that,
giving me equal running times with much cooler features. I currently
assume (without having checked at all) due to dead variable elimination.

So if it is getting better, I'd be really really happy.


* Ian Lynagh <ian at well-typed.com> [06.09.2012 22:00]:
> On Thu, Sep 06, 2012 at 06:32:38PM +0200, Christian Hoener zu Siederdissen wrote:
> > Awesome,
> > 
> > I have been playing with GHC 7.6.0 until today and been very happy. Btw.
> > isn't this the version that officially includes "-fnew-codegen" / HOOPL?
> > 
> > Because the new codegen is optimizing the my ADPfusion library nicely.
> > I lost 50% speed with new features, gained 100% with new codegen,
> > meaning new features come for free ;-)
> I suspect that you'll find that the new codegen doesn't work 100%
> perfectly in 7.6, although I don't know the details - perhaps it just
> isn't as fast as it could be. It'll be the default in 7.8, though.
> Thanks
> Ian
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