Re: AMD64 ABI compatibility

[Kai Tietz <Kai dot Tietz at onevision dot com>]

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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