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Re: gcc 3.4 > mainline performance regression

From: David Edelsohn <dje at watson dot ibm dot com>
To: "Steven Bosscher" <stevenb dot gcc at gmail dot com>
Cc: "Andrew Haley" <aph at redhat dot com>, gcc at gcc dot gnu dot org
Date: Fri, 05 Jan 2007 11:46:08 -0500
Subject: Re: gcc 3.4 > mainline performance regression
References: <17822.23134.260864.246773@zebedee.pink> <571f6b510701050835p454dc139pe3e6ac2daa63b5af@mail.gmail.com>

>>>>> Steven Bosscher writes:

Steven> What does the code look like if you compile with -O2  -fgcse-sm?

	Yep.  Mark and I recently discussed whether gcse-sm should be
enabled by default at some optimization level.  We're hiding performance
from GCC users.

David

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