From: Andrew MacLeod <amacleod@redhat.com>
To: Jeff Law <law@redhat.com>
Cc: Chris Lattner <sabre@nondot.org>,
Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>,
gcc mailing list <gcc@gcc.gnu.org>
Subject: Re: [tree-ssa] Lazy updating of stmt operands
Date: Tue, 16 Dec 2003 06:02:00 -0000 [thread overview]
Message-ID: <1071545043.3257.2293.camel@p4> (raw)
In-Reply-To: <200312152336.hBFNaA8g019471@speedy.slc.redhat.com>
On Mon, 2003-12-15 at 18:36, law@redhat.com wrote:
> In message <1071323157.3257.138.camel@p4>, Andrew MacLeod writes:
> >The Cache isnt something we're trying to work around. Thats there to
> >prevent us from having to muck around in trees looking for things which
> >are operands. The stmt is in the form of trees, our "cache" is the
> >equivilent of your instruction. It consists of the operands plus looking
> >at the tree code(s) of the stmt.
> >
> >So we have 1 word for each operand. It points to the SSA_NAME in the
> >stmt tree which represents that ssa version.
> >
> >As far as Im concerned, we're not working around anything. Everything
> >works just fine. IF someone wants/needs the def->use inforation, it can
> >be built today. What we dont have is the ability to keep it up to date
> >for some period of time, simply because we've never needed it. If the
> >time comes that we do need it, it is not hard to add.
> In fact, we could even ponder the idea of what we now know as the operand
> cache morphing into a lighter-weight IL at some point in the future.
>
Indeed, it is the core of what we deal with.
Andrew
next prev parent reply other threads:[~2003-12-16 3:24 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-11 22:31 Chris Lattner
2003-12-12 3:14 ` law
2003-12-12 3:58 ` Chris Lattner
2003-12-12 19:25 ` Andrew MacLeod
2003-12-12 19:42 ` Zdenek Dvorak
2003-12-12 19:45 ` Andrew MacLeod
2003-12-12 19:54 ` Chris Lattner
2003-12-12 19:55 ` Andrew MacLeod
2003-12-12 20:39 ` [tree-ssa] Maintaining/representing def-use/use-def information Chris Lattner
2003-12-13 13:46 ` Andrew MacLeod
2003-12-14 3:59 ` Chris Lattner
2003-12-15 17:17 ` Andrew MacLeod
2003-12-15 19:18 ` Chris Lattner
2003-12-15 19:43 ` Andrew MacLeod
2003-12-15 20:26 ` Chris Lattner
2003-12-15 20:29 ` Diego Novillo
2003-12-15 20:52 ` Andrew MacLeod
2003-12-15 21:01 ` Zdenek Dvorak
2003-12-15 21:09 ` Andrew MacLeod
2003-12-15 21:11 ` Zdenek Dvorak
2003-12-15 21:20 ` Diego Novillo
2003-12-15 21:23 ` Zdenek Dvorak
2003-12-15 21:31 ` Andrew MacLeod
2003-12-17 8:47 ` law
2003-12-15 21:03 ` Diego Novillo
2003-12-15 21:11 ` Andrew MacLeod
2003-12-15 21:11 ` Chris Lattner
2003-12-15 21:16 ` Zdenek Dvorak
2003-12-15 21:19 ` Chris Lattner
2003-12-15 21:38 ` Daniel Berlin
2003-12-15 22:08 ` Chris Lattner
2003-12-15 23:09 ` Daniel Berlin
2003-12-15 23:31 ` Chris Lattner
2003-12-15 23:46 ` Daniel Berlin
2003-12-15 21:32 ` Daniel Berlin
2003-12-15 21:31 ` Andrew MacLeod
2003-12-17 7:51 ` law
2003-12-15 20:04 ` Diego Novillo
2003-12-15 23:26 ` law
2003-12-15 23:32 ` Chris Lattner
2003-12-12 21:26 ` [tree-ssa] Lazy updating of stmt operands Diego Novillo
2003-12-12 19:57 ` Chris Lattner
2003-12-13 16:02 ` Andrew MacLeod
2003-12-14 3:39 ` Chris Lattner
2003-12-15 23:41 ` law
2003-12-16 6:02 ` Andrew MacLeod [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-12-15 20:47 Chris Lattner
2003-12-07 16:22 Zdenek Dvorak
2003-12-07 17:14 ` Diego Novillo
2003-12-07 17:28 ` Zdenek Dvorak
2003-12-07 17:36 ` Diego Novillo
2003-12-07 18:09 ` Zdenek Dvorak
2003-12-11 19:39 ` law
2003-12-07 22:20 ` Steven Bosscher
2003-12-09 14:30 ` Andrew MacLeod
2003-12-09 20:40 ` Zdenek Dvorak
2003-12-11 19:41 ` law
2003-12-11 19:38 ` law
2003-12-11 19:52 ` Zdenek Dvorak
2003-12-11 22:36 ` Zdenek Dvorak
2003-12-11 23:34 ` Andrew MacLeod
2003-12-15 19:10 ` Andrew MacLeod
2003-12-15 19:19 ` Zdenek Dvorak
2003-12-15 20:55 ` Andrew MacLeod
2003-12-15 21:06 ` Zdenek Dvorak
2003-12-15 21:39 ` Andrew MacLeod
2003-12-15 21:49 ` Zdenek Dvorak
2003-12-15 22:04 ` Andrew MacLeod
2003-12-15 22:39 ` law
2003-12-17 4:56 ` law
2003-12-16 23:32 ` Andrew MacLeod
2003-12-17 0:09 ` Zdenek Dvorak
2003-12-17 0:21 ` Andrew MacLeod
2003-12-17 3:28 ` law
2003-12-15 19:28 ` Diego Novillo
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