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Re: tree-ssa memory and compile-time regressions

From: Daniel Berlin <dberlin at dberlin dot org>
To: Diego Novillo <dnovillo at redhat dot com>
Cc: "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 10:21:26 -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>

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.

Follow-Ups:
- Re: tree-ssa memory and compile-time regressions
  - From: Daniel Berlin

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

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