Altivec Linux support in GCC

[Daniel Jacobowitz]

On Mon, Apr 14, 2003 at 11:40:47PM -0400, 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. 

Could someone kindly summarize what STACK_BOUNDARY actually does in the
presence of PREFERRED_STACK_BOUNDARY?  The manual isn't terribly clear,
and neither are the sources.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer