[Haskell-cafe] Known Unknowns

[Joel Koerwer]

On 1/26/06, Donald Bruce Stewart <dons at cse.unsw.edu.au> wrote:

> Ah, i just do: ghc A.hs -O2 -ddump-simpl | less
> and then read the Core, keeping an eye on the functions I'm interested
> in, and checking they're compiling to the kind of loops I'd write by
> hand. This is particularly useful for the kinds of tight numeric loops
> used in some of the shootout entries.
>
> Cheers,
>   Don



In that case could you describe the kind of loops you'd write by hand?
Seriously. And perhaps typical problems/fixes when the compiler doesn't
produce what you want.

Thanks,
Joel
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