[arch-haskell] haskell-src-exts: Illegal instruction (core dumped)

[Nicola Squartini]

I remember reading somewhere that packages that use parallelism, like
`repa`, would benefit from the llvm backend. I've never seen benchmarks
though.


On Sun, Apr 27, 2014 at 11:55 PM, Magnus Therning <magnus at therning.org>wrote:

> On Sun, Apr 27, 2014 at 11:11:25PM +0200, Nicola Squartini wrote:
> > I never used LLVM so I'm looking at the manual right now. It's explained
> > here:
> >
> > http://llvm.org/docs/CommandGuide/llc.html#cmdoption-mcpu
> >
> > It autodetects the cpu and optimizes for it.
> > As I understand, in order to produce generic code you should pass
> > -mcpu=i686 or -mcpu=x86_64. They can be passed to the ghc via -optlc,
> e.g.
> > -optlc="-mcpu=x86_64".
> > I'm going to look more carefully to see what is the best option to pass.
>
> Thanks for looking into it.
>
> This does makes me wonder though what other differences there are
> between the two code generators.  Maybe it's worth considering using
> LLVM for all packages?
>
> /M
>
> --
> Magnus Therning                      OpenPGP: 0xAB4DFBA4
> email: magnus at therning.org   jabber: magnus at therning.org
> twitter: magthe               http://therning.org/magnus
>
> What gets measured, gets done.
>      -- Tom Peters
>
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