Re: AMD64 ABI compatibility

[Nicolas Alt <nalt at apple dot com>]

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>