AMD64 ABI compatibility

[Nicolas Alt]

Kai,
did you make your diff against the current CVS checkout or against  
your first patch? Should your changes already work for some cases? I  
would like to test if they produce the right instructions. However, I  
do not have enough insight into gcc to work on it myself.
Thanks,
Nicolas


On Aug 1, 2007, at 5:48 , Kai Tietz wrote:

> Hi Jan,
>
> Jan Hubicka wrote on 31.07.2007 23:40:40:
>
>>> Hi Kai,
>>>
>>> so, could you resolve the remaining issues? Or have you kind of
>>> paused the project?
>>>
>>> Cheers,
>>> Nicolas
>>>
>>>
>>> On Jul 12, 2007, at 2:14 , Kai Tietz wrote:
>>>
>>>> Hi,
>>>>
>>>> I am nearly through :) The remaining macros left to be ported are
>>>> REGPARM_MAX and SSE_REGPARM_MAX. The sysv_abi uses 6 regs and 8  
>>>> sses,
>>>> ms_abi uses 4 regs and 4 sse registers. The problem is for example
>>>> the use
>>>> in i386.md of SSE_REGPARM_MAX without any hint, how to choose the
>>>> required
>>>> abi. Do you have an idea how this could be done ?
>>
>> This shoul not be dificult - ix86_regparm is used in
>> ix86_function_regparm, init_cumulative_args,  
>> setup_incoming_varargs_64
>> functions.  In all those cases you know the function declaration and
>> thus you can take a look if it is call to different ABI and overwrite
>> the value.
>
> Ok, here is my update.
>
> Cheers,
>  i.A. Kai Tietz
>
>
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> <amd64_abis_2.txt>