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Re: [PATCH] Support official CLooG.org versions.


On Fri, Nov 12, 2010 at 09:42:38PM +0100, Paolo Bonzini wrote:
> On 11/12/2010 09:39 PM, Jack Howarth wrote:
>> Tobi,
>>     I am still a tad concerned about the ABI change between ppl 0.10.x and
>> 0.11. Is it certain that, for the combination of FSF gcc built against ppl 0.11
>> and cloog-ppl built against ppl 0.10.x, there are no ppl data structures
>> passed on the cloog calls between graphite and cloog? If not, might there
>> be issues if the ABI changes in ppl impacted those data structures?
>
> Hopefully that would fail to link due to multiply-defined names?  Maybe  
> not on Mac OS X due to two-level namespacing, in any case if somebody  
> wants to experiment with this scenario that's welcome.
>
> Paolo

Paolo,
   Well originally I had proposed that this issue be avoided by having
legacy cloog-ppl only build against ppl 0.10.x and FSF gcc 4.6 require
ppl 0.11.

http://gcc.gnu.org/ml/gcc-patches/2010-08/msg01033.html

Unfortunately cloog-ppl 0.15.10 apparently added support for ppl 0.11
(although I can't get that release to build due to autogeneration problems).
            Jack


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