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[Bug target/19131] alloca returning unnecessarily aligned pointer and uses too much memory
- From: "rguenth at tat dot physik dot uni-tuebingen dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 23 Dec 2004 22:23:20 -0000
- Subject: [Bug target/19131] alloca returning unnecessarily aligned pointer and uses too much memory
- References: <20041222143844.19131.rguenth@tat.physik.uni-tuebingen.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- 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 need to keep the stack aligned sorry.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19131