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Re: [ tree-ssa] PRE problem

From: Daniel Berlin <dberlin at dberlin dot org>
To: Diego Novillo <dnovillo at redhat dot com>
Cc: Jeff Law <law at redhat dot com>,"gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
Date: Fri, 20 Feb 2004 18:48:52 -0500
Subject: Re: [ tree-ssa] PRE problem
References: <200402201818.i1KIIDGO001153@speedy.slc.redhat.com> <FAF2A76C-63E8-11D8-99B8-000A95DA505C@dberlin.org> <1077320636.3219.3.camel@localhost.localdomain>

On Feb 20, 2004, at 6:43 PM, Diego Novillo wrote:

On Fri, 2004-02-20 at 16:08, Daniel Berlin wrote:

So whoever introduced the annotations (I think they came from Diego's
flow sensitive aliasing stuff) should have added the code to update
them in PRE.

No.  The value propagation functions and the pointer annotations are
much older.
 We are only now running into trouble with them.  Otherwise,
I would have probably bugged you some time last year :)

Um, Diego, when do you think that code was written? Last week? It hasn't been fundamentally touched in ages (I believe someone touched the generate_vops part when we moved to having VUSE_OPS_PTR).

Follow-Ups:
- Re: [ tree-ssa] PRE problem
  - From: Diego Novillo

References:
- Re: [ tree-ssa] PRE problem
  - From: law
- Re: [ tree-ssa] PRE problem
  - From: Daniel Berlin
- Re: [ tree-ssa] PRE problem
  - From: Diego Novillo

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