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From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug optimization/15242] pessimization of "goto *"
Date: Thu, 06 May 2004 04:45:00 -0000 [thread overview]
Message-ID: <20040506044539.14429.qmail@sources.redhat.com> (raw)
In-Reply-To: <20040501142654.15242.anton@mips.complang.tuwien.ac.at>
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-05-06 04:45 -------
Confirmed a reduced testcase:
int f(int i, int j)
{
static void *a[5] = {&&b,&&c,&&d,&&e,&&f};
if (i >=5) i = 0; if (i<=0)i=5;
goto *a[i];
e:
i++; if (i >=5) i = 0; if (i<=0)i=5;
j++;
goto *a[i];
f:
i--; if (i >=5) i = 0; if (i<=0)i=5;
j--;
goto *a[i];
b:
i+=2; if (i >=5) i = 0; if (i<=0)i=5;
goto *a[i];
c:
i*=2; if (i >=5) i = 0; if (i<=0)i=5;
goto *a[i];
d:;
}
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2004-05-06 04:45:35
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15242
next prev parent reply other threads:[~2004-05-06 4:45 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-01 14:27 [Bug optimization/15242] New: " anton at mips dot complang dot tuwien dot ac dot at
2004-05-01 14:30 ` [Bug optimization/15242] " anton at mips dot complang dot tuwien dot ac dot at
2004-05-01 14:38 ` pinskia at gcc dot gnu dot org
2004-05-01 14:41 ` pinskia at gcc dot gnu dot org
2004-05-01 14:42 ` pinskia at gcc dot gnu dot org
2004-05-01 15:03 ` anton at a0 dot complang dot tuwien dot ac dot at
2004-05-01 15:13 ` pinskia at gcc dot gnu dot org
2004-05-02 7:24 ` anton at a0 dot complang dot tuwien dot ac dot at
2004-05-02 19:06 ` jsm at polyomino dot org dot uk
2004-05-04 15:06 ` anton at a0 dot complang dot tuwien dot ac dot at
2004-05-06 4:45 ` pinskia at gcc dot gnu dot org [this message]
2004-05-23 9:40 ` [Bug rtl-optimization/15242] " zlomek at gcc dot gnu dot org
2004-05-25 9:28 ` zlomek at gcc dot gnu dot org
2004-05-26 18:57 ` pinskia at gcc dot gnu dot org
2004-06-16 7:01 ` pinskia at gcc dot gnu dot org
2004-07-06 20:35 ` anton at mips dot complang dot tuwien dot ac dot at
2004-07-06 22:00 ` pinskia at gcc dot gnu dot org
2004-07-07 4:49 ` zlomj9am at artax dot karlin dot mff dot cuni dot cz
2004-07-07 13:34 ` zlomek at gcc dot gnu dot org
2004-07-08 13:03 ` anton at mips dot complang dot tuwien dot ac dot at
2004-07-16 6:50 ` zlomek at gcc dot gnu dot org
2004-07-16 7:01 ` zlomj9am at artax dot karlin dot mff dot cuni dot cz
2004-07-16 8:17 ` anton at mips dot complang dot tuwien dot ac dot at
2004-07-16 8:42 ` zlomj9am at artax dot karlin dot mff dot cuni dot cz
2004-10-03 20:25 ` bernd dot paysan at gmx dot de
2004-10-04 12:21 ` giovannibajo at libero dot it
2004-10-25 21:10 ` steven at gcc dot gnu dot org
2004-12-18 16:46 ` [Bug rtl-optimization/15242] [4.0 regression] " steven at gcc dot gnu dot org
2004-12-18 18:18 ` [Bug rtl-optimization/15242] [3.3/3.4/4.0 " pinskia at gcc dot gnu dot org
2005-01-26 17:28 ` steven at gcc dot gnu dot org
2005-01-27 13:45 ` pinskia at gcc dot gnu dot org
2005-02-01 10:04 ` cvs-commit at gcc dot gnu dot org
2005-02-01 10:11 ` [Bug rtl-optimization/15242] [3.3/3.4 " steven at gcc dot gnu dot org
2005-02-07 18:56 ` kazu at cs dot umass dot edu
2005-02-07 19:00 ` pinskia at gcc dot gnu dot org
2005-02-27 18:12 ` anton at mips dot complang dot tuwien dot ac dot at
2005-03-10 12:48 ` steven at gcc dot gnu dot org
2005-03-12 21:38 ` anton at mips dot complang dot tuwien dot ac dot at
2005-03-12 21:54 ` stevenb at suse dot de
2005-04-03 13:24 ` schwab at suse dot de
2005-04-07 9:03 ` schwab at suse dot de
2005-04-07 14:45 ` schwab at suse dot de
2005-05-19 17:36 ` mmitchel at gcc dot gnu dot org
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