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* [Bug tree-optimization/16157] gcc fails to optimize redundant expression (reassocation)
[not found] <bug-16157-7958@http.gcc.gnu.org/bugzilla/>
@ 2007-04-16 1:55 ` dberlin at gcc dot gnu dot org
2007-04-16 18:40 ` steven at gcc dot gnu dot org
1 sibling, 0 replies; 6+ messages in thread
From: dberlin at gcc dot gnu dot org @ 2007-04-16 1:55 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from dberlin at gcc dot gnu dot org 2007-04-16 02:55 -------
Don't remember if this is fixed, but not working anymore on it
--
dberlin at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|dberlin at gcc dot gnu dot |unassigned at gcc dot gnu
|org |dot org
Status|ASSIGNED |NEW
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16157
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/16157] gcc fails to optimize redundant expression (reassocation)
[not found] <bug-16157-7958@http.gcc.gnu.org/bugzilla/>
2007-04-16 1:55 ` [Bug tree-optimization/16157] gcc fails to optimize redundant expression (reassocation) dberlin at gcc dot gnu dot org
@ 2007-04-16 18:40 ` steven at gcc dot gnu dot org
1 sibling, 0 replies; 6+ messages in thread
From: steven at gcc dot gnu dot org @ 2007-04-16 18:40 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from steven at gcc dot gnu dot org 2007-04-16 19:40 -------
This is not yet fixed.
--
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2005-12-09 04:24:11 |2007-04-16 19:40:04
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16157
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/16157] gcc fails to optimize redundant expression (reassocation)
[not found] <bug-16157-4@http.gcc.gnu.org/bugzilla/>
@ 2012-03-04 0:06 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-03-04 0:06 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16157
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-03-04 00:06:13 UTC ---
If we rewrite the code to be:
extern int a0, a1, a2, a3, a4;
extern int b0, b1, b2, b3, b4;
void f ()
{
/* this can be optimized to four additions... */
b4 = a4 + (a3 + (a2 + (a1 + a0)));
b3 = a3 + (a2 + (a1 + a0));
b2 = a2 + (a1 + a0);
b1 = a1 + a0;
}
Then it gets optimized.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/16157] gcc fails to optimize redundant expression (reassocation)
[not found] <20040623133609.16157.belyshev@depni.sinp.msu.ru>
2005-07-26 13:14 ` dberlin at gcc dot gnu dot org
@ 2005-08-28 20:00 ` dberlin at gcc dot gnu dot org
1 sibling, 0 replies; 6+ messages in thread
From: dberlin at gcc dot gnu dot org @ 2005-08-28 20:00 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From dberlin at gcc dot gnu dot org 2005-08-28 19:59 -------
I have a patch for this
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |dberlin at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2005-03-23 02:58:54 |2005-08-28 19:59:28
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16157
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/16157] gcc fails to optimize redundant expression (reassocation)
[not found] <20040623133609.16157.belyshev@depni.sinp.msu.ru>
@ 2005-07-26 13:14 ` dberlin at gcc dot gnu dot org
2005-08-28 20:00 ` dberlin at gcc dot gnu dot org
1 sibling, 0 replies; 6+ messages in thread
From: dberlin at gcc dot gnu dot org @ 2005-07-26 13:14 UTC (permalink / raw)
To: gcc-bugs
--
Bug 16157 depends on bug 21445, which changed state.
Bug 21445 Summary: [meta-bug] we need a reassociate pass
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21445
What |Old Value |New Value
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16157
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/16157] gcc fails to optimize redundant expression (reassocation)
2004-06-23 13:56 [Bug tree-optimization/16157] New: gcc fails to optimize redundant expression belyshev at lubercy dot com
@ 2004-12-22 4:15 ` pinskia at gcc dot gnu dot org
0 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-12-22 4:15 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
Last reconfirmed|2004-09-22 13:16:11 |2004-12-22 04:15:13
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16157
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2012-03-04 0:06 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-16157-7958@http.gcc.gnu.org/bugzilla/>
2007-04-16 1:55 ` [Bug tree-optimization/16157] gcc fails to optimize redundant expression (reassocation) dberlin at gcc dot gnu dot org
2007-04-16 18:40 ` steven at gcc dot gnu dot org
[not found] <bug-16157-4@http.gcc.gnu.org/bugzilla/>
2012-03-04 0:06 ` pinskia at gcc dot gnu.org
[not found] <20040623133609.16157.belyshev@depni.sinp.msu.ru>
2005-07-26 13:14 ` dberlin at gcc dot gnu dot org
2005-08-28 20:00 ` dberlin at gcc dot gnu dot org
2004-06-23 13:56 [Bug tree-optimization/16157] New: gcc fails to optimize redundant expression belyshev at lubercy dot com
2004-12-22 4:15 ` [Bug tree-optimization/16157] gcc fails to optimize redundant expression (reassocation) pinskia at gcc dot gnu dot org
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