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From: "lucier at math dot purdue dot edu" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug regression/39914] 96% performance regression in floating point code; part of the problem started 2009/03/12-13
Date: Mon, 27 Apr 2009 15:07:00 -0000 [thread overview]
Message-ID: <20090427150738.22924.qmail@sourceware.org> (raw)
In-Reply-To: <bug-39914-271@http.gcc.gnu.org/bugzilla/>
------- Comment #3 from lucier at math dot purdue dot edu 2009-04-27 15:07 -------
Subject: Re: 96% performance regression in floating
point code; part of the problem started 2009/03/12-13
On Sun, 2009-04-26 at 18:43 +0000, ubizjak at gmail dot com wrote:
>
>
> ------- Comment #1 from ubizjak at gmail dot com 2009-04-26 18:43 -------
> There are a couple of possible candidates in this range:
>
> URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=144812
> Log:
> 2009-03-12 Vladimir Makarov <vmakarov@redhat.com>
>
> PR debug/39432
> * ira-int.h (struct allocno): Fix comment for calls_crossed_num.
> * ira-conflicts.c (ira_build_conflicts): Prohibit call used
> registers for allocnos created from user-defined variables.
The problem exists in
gcc version 4.4.0 20090312 (experimental) [trunk revision 144812] (GCC)
So perhaps it's this checkin.
Brad
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39914
next prev parent reply other threads:[~2009-04-27 15:07 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-26 18:24 [Bug regression/39914] New: " lucier at math dot purdue dot edu
2009-04-26 18:43 ` [Bug regression/39914] " ubizjak at gmail dot com
2009-04-27 8:16 ` ubizjak at gmail dot com
2009-04-27 15:07 ` lucier at math dot purdue dot edu [this message]
2009-04-27 15:11 ` lucier at math dot purdue dot edu
2009-04-27 15:26 ` pinskia at gcc dot gnu dot org
2009-04-27 15:32 ` lucier at math dot purdue dot edu
2009-04-27 15:35 ` lucier at math dot purdue dot edu
2009-04-27 16:29 ` lucier at math dot purdue dot edu
2009-04-27 18:21 ` ubizjak at gmail dot com
2009-04-27 19:04 ` [Bug regression/39914] [4.4/4.5 Regression] " bonzini at gnu dot org
2009-04-27 20:38 ` lucier at math dot purdue dot edu
2009-04-28 1:40 ` lucier at math dot purdue dot edu
2009-04-28 16:18 ` uros at gcc dot gnu dot org
2009-04-28 16:19 ` [Bug rtl-optimization/39914] [4.4 " ubizjak at gmail dot com
2009-05-03 19:40 ` uros at gcc dot gnu dot org
2009-05-03 19:41 ` ubizjak at gmail dot com
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