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[Python-Dev] A new JIT compiler for a faster CPython?

Ronald Oussoren ronaldoussoren at mac.com
Wed Jul 18 17:15:18 CEST 2012 
On 18 Jul, 2012, at 16:59, martin at v.loewis.de wrote:

> 
> Zitat von Ronald Oussoren <ronaldoussoren at mac.com>:
> 
>> On 18 Jul, 2012, at 7:53, martin at v.loewis.de wrote:
>> 
>>>> What is the status of LLVM nowadays? Is it not a good solution to
>>>> write a portable JIT?
>>> 
>>> I don't think it is. It is still slow and memory hungry. The fact that
>>> the version that Apple ships with Xcode still miscompiles Python 3.3
>>> tells me that it is still buggy.
>> 
>> Does it miscompile?
> 
> I'm talking about the bug in
> 
> http://mail.python.org/pipermail/python-dev/2011-September/113731.html
> 
>> I regularly run the 3.3 testsuite using the latest Xcode from the Appstore on a OSX Lion machine and that works properly.
> 
> I'm not actually using the latest Xcode. So if you could test my test
> program, that would be much appreciated.

That bug in llvm-gcc still exists, and is unlikely to get fixed.  That's a bug in the integretion of the GCC frontend and LLVM backend, clang (LLVM project frontend + LLVM backend) does work.

Ronald

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