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[Bug rtl-optimization/20367] alias analysis doesn't take into account that variables that haven't their address taken can't alias arbitrary MEMs
- From: "dberlin at dberlin dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 2 Aug 2005 22:19:53 -0000
- Subject: [Bug rtl-optimization/20367] alias analysis doesn't take into account that variables that haven't their address taken can't alias arbitrary MEMs
- References: <20050307194707.20367.amylaar@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From dberlin at gcc dot gnu dot org 2005-08-02 22:19 -------
Subject: Re: alias analysis doesn't take into
account that variables that haven't their address taken can't alias
arbitrary MEMs
On Tue, 2005-08-02 at 19:19 +0000, amylaar at gcc dot gnu dot org wrote:
> ------- Additional Comments From amylaar at gcc dot gnu dot org 2005-08-02 19:19 -------
> (In reply to comment #20)
>
> > The improved aliasing was not reverted though which is what gets most of the
> improvements and not
> > the promote statics pass.
>
> The scheduling testcase still suffers from insufficient alias information.
And it will until all of the info about what variables, etc, we have is
kept through scheduling.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20367