[Bug target/19131] alloca returning unnecessarily aligned pointer and uses too much memory

[Jan Hubicka]

> 
> ------- Additional Comments From rguenth at tat dot physik dot uni-tuebingen dot de  2004-12-23 22:23 -------
> Subject: Re:  alloca returning unnecessarily aligned pointer
>  and uses too much memory
> 
> pinskia at gcc dot gnu dot org wrote:
> > ------- Additional Comments From pinskia at gcc dot gnu dot org  2004-12-22 15:06 -------
> > The reason you cannot find anything in the C standard is because this is ABI thing so this is invalid
> 
> Where is the ABI specified?  Is it the "System V ABI, Intel386 
> Architecture Processor Supplement" document I found at
> http://www.caldera.com/developers/devspecs/abi386-4.pdf?
> This one talks about word-alignment of the stack, not 16 byte alignment.

We keep the stack 16 byte aligned as an extension to support SSE....
Honza
> 
> > We need to keep the stack aligned sorry.
> 
> 
> -- 
> 
> 
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19131