Altivec Linux support in GCC

Kumar Gala kumar.gala@motorola.com
Tue Apr 15 07:23:00 GMT 2003


On Monday, April 14, 2003, at 10:40 PM, David Edelsohn wrote:

>>>>>> Kumar Gala writes:
>
> Kumar> I'm not sure I follow.  If you have two versions (one w/altivec 
> & one w/o)
> Kumar> what effect does it have if you where to enable the 
> -mabi=altivec option?
> Kumar> It would not seem to change anything else.  It should only 
> effect the
> Kumar> generation of AltiVec related code.  Maybe I'm missing 
> something here.
>
> 	Look at the GCC sources.  Stack boundary.  VRSAVE.  Altivec
> arguments.
>
> David

David,

I can do that, but do we expect users to have to read GCC source to 
figure out what a set of options do or dont do to know how to use them. 
  Look at the online docs for gcc-3.2.x with regards to the -maltivec 
and -mabi=altivec options is not very help in explaining to me what 
functionality I get with just -maltivec.

- kumar



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