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Re: tree-ssa memory and compile-time regressions

From: Daniel Berlin <dberlin at dberlin dot org>
To: Daniel Berlin <dberlin at dberlin dot org>
Cc: Diego Novillo <dnovillo at redhat dot com>,"gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>,Richard Guenther <rguenth at tat dot physik dot uni-tuebingen dot de>
Date: Thu, 8 Jan 2004 11:06:10 -0500
Subject: Re: tree-ssa memory and compile-time regressions
References: <Pine.LNX.4.53.0401081510250.4680@bellatrix.tat.physik.uni-tuebingen.de> <1073574032.3165.20.camel@frodo.toronto.redhat.com> <5354E3F0-41EE-11D8-9452-000A95DA505C@dberlin.org>

On Jan 8, 2004, at 10:21 AM, Daniel Berlin wrote:

On Jan 8, 2004, at 10:00 AM, Diego Novillo wrote:
On Thu, 2004-01-08 at 09:53, Richard Guenther wrote:
-O0 220MB, 0m17s
-O1 260MB, 0m24s
-O2 800MB, 7m35s  (-ftime-report on a faster machine attached below)
-O2 -fno-unit-at-a-time 260MB, 0m28s
Hmm, based on what the time report says, could you try with
-fno-tree-pre?
I'm profiling the testcase right now with PRE on to see where we are spending time.

Even though the problem is "fixed" by his patch, i'm still profiling it anyway.

(I hate being late to the party)

References:
- tree-ssa memory and compile-time regressions
  - From: Richard Guenther
- Re: tree-ssa memory and compile-time regressions
  - From: Diego Novillo
- Re: tree-ssa memory and compile-time regressions
  - From: Daniel Berlin

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