This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [tree-ssa] How to make DECLs that alias

From: Richard Henderson <rth at redhat dot com>
To: Diego Novillo <dnovillo at redhat dot com>
Cc: Andrew Haley <aph at redhat dot com>, Per Bothner <per at bothner dot com>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
Date: Wed, 19 Nov 2003 06:39:06 -0800
Subject: Re: [tree-ssa] How to make DECLs that alias
References: <16314.23877.301251.901564@cuddles.cambridge.redhat.com> <20031118185721.GD24840@redhat.com> <3FBAECE1.4040108@bothner.com> <16315.11810.981280.718645@cuddles.cambridge.redhat.com> <1069251359.18385.0.camel@frodo.toronto.redhat.com>

On Wed, Nov 19, 2003 at 09:16:00AM -0500, Diego Novillo wrote:
> Not necessarily.  The must-alias pass and PTA ought to help, in theory. 
> Particularly if these pointers never get reset to another address.

But if that happens, we'll optimize the whole thing away and 
the variable will *not* appear in the debug output.

r~

Follow-Ups:
- Re: [tree-ssa] How to make DECLs that alias
  - From: Diego Novillo

References:
- [tree-ssa] How to make DECLs that alias
  - From: Andrew Haley
- Re: [tree-ssa] How to make DECLs that alias
  - From: Richard Henderson
- Re: [tree-ssa] How to make DECLs that alias
  - From: Per Bothner
- Re: [tree-ssa] How to make DECLs that alias
  - From: Andrew Haley
- Re: [tree-ssa] How to make DECLs that alias
  - From: Diego Novillo

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]