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[Bug tree-optimization/19626] Aliasing says stores to local memory do alias
- 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: 7 Apr 2005 12:50:26 -0000
- Subject: [Bug tree-optimization/19626] Aliasing says stores to local memory do alias
- References: <20050125165629.19626.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 2005-04-07 12:50 -------
Subject: Re: Aliasing says stores to local
memory do alias
On 7 Apr 2005, dberlin at dberlin dot org wrote:
>
> ------- Additional Comments From dberlin at gcc dot gnu dot org 2005-04-07 12:48 -------
> Subject: Re: Aliasing says stores to local
> memory do alias
>
>
> > Other than that, struct aliasing (or just removing the casts) doesn't fix the
> > aliasing problems - though struct aliasing doesn't handle array elements at
> > the moment(?).
>
> Correct, it does not.
Ok, at least the RTL optimizers figure out that these stack locals
cannot alias. Hope we get this for the tree optimizers, too.
Richard.
--
Richard Guenther <richard dot guenther at uni-tuebingen dot de>
WWW: http://www.tat.physik.uni-tuebingen.de/~rguenth/
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19626