[Haskell] Haskell 6.4 perfomance

[Simon Marlow]

GHC 6.4 uses C-- as an intermediate language, it doesn't compile via C--
(yet).  A full C-- backend has the potential to generate faster code
that going via GCC, because C-- would have control over the stack and
the calling convention.

In my experience, extra optimisation flags for gcc make very little
difference for GHC-compiled code, and may even make things worse.  By
all means do some benchmarks, though!

Cheers,
	Simon

On 25 March 2005 08:19, Alexandre wrote:

> Keean, thank you.
> 
> Does any tests/benchmarks available?
> 
> Regards,
> /Alexandre.
> 
> 
> On Mar 25, 2005, at 00:47, Keean Schupke wrote:
> 
>> Think this should really go to glasgow-haskell-users...
>> 
>> If this is true - how do I get ghc to use C--, and is it really
>> faster than using gcc as a backend with all the bells & whistles
>> turned on (for a pentium-III) something like
>> 
>>    "-O3 -mcpu=pentium3 -march=pentium3 -pipe -fomit-frame-pointer
>> -momit-leaf-frame-pointer -ftracer -fno-crossjumping -mfpmath=sse,387
>> -ffast-math -fsched-spec-load -fprefetch-loop-arrays
>> -maccumulate-outgoing-args -fmove-all-movables
>> -freduce-all-givs"
>> 
>>    Keean.
>> 
>> Alexandre wrote:
>> 
>>> As I heard, 6.4 version of the Haskell using C-- backend and make
>>> lots of the resulting code perfomance (programs executed faster).
>>> If so, does any test/comparison with other languages available?
>>> 
>>> Thank you in advance,
>>> Regards,
>>> /Alexandre.
>>> 
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> 
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