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* [Bug tree-optimization/17790] New: Significant compile time increases for sixtrack with tree LICM and IV optimization
@ 2004-10-02  2:25 dberlin at gcc dot gnu dot org
  2004-10-02  2:26 ` [Bug tree-optimization/17790] [4.0 Regression] " pinskia at gcc dot gnu dot org
                   ` (18 more replies)
  0 siblings, 19 replies; 20+ messages in thread
From: dberlin at gcc dot gnu dot org @ 2004-10-02  2:25 UTC (permalink / raw)
  To: gcc-bugs

For datem.f from sixtrack, i get

loop invariant motion :  23.03 (17%) usr   0.05 ( 7%) sys  23.82 (16%) wall
loop iv optimization : 21.03 (15%) usr 0.05 (7%) sys 22.13 (16%) walll

On struct-aliasing, which has vuse bypassing enabled (and thus enables more
optimization), the situation is worse:

 loop invariant motion :  23.13 (17%) usr   0.04 (6%) sys  23.94 (15%) wall
 tree iv optimization  :  68.67 (49%) usr   0.29 (40%) sys  74.50 (50%) wall

For maincr.f, we have:

 tree iv optimization  :   9.72 (23%) usr   0.06 (13%) sys  10.10 (23%) wall

-- 
           Summary: Significant compile time increases for sixtrack with
                    tree LICM and IV optimization
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dberlin at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17790


^ permalink raw reply	[flat|nested] 20+ messages in thread
end of thread, other threads:[~2005-09-27 16:23 UTC | newest]

Thread overview: 20+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-10-02  2:25 [Bug tree-optimization/17790] New: Significant compile time increases for sixtrack with tree LICM and IV optimization dberlin at gcc dot gnu dot org
2004-10-02  2:26 ` [Bug tree-optimization/17790] [4.0 Regression] " pinskia at gcc dot gnu dot org
2004-10-17 19:05 ` rakdver at gcc dot gnu dot org
2004-10-17 19:20 ` rakdver at gcc dot gnu dot org
2004-10-17 19:44 ` dberlin at gcc dot gnu dot org
2004-10-17 20:16 ` rakdver at gcc dot gnu dot org
2004-11-25 20:47 ` pinskia at gcc dot gnu dot org
2004-11-27 21:17 ` neroden at gcc dot gnu dot org
2004-12-06  0:02 ` pinskia at gcc dot gnu dot org
2004-12-06  0:13 ` rakdver at atrey dot karlin dot mff dot cuni dot cz
2005-02-02  8:13 ` steven at gcc dot gnu dot org
2005-02-02  8:38 ` rakdver at atrey dot karlin dot mff dot cuni dot cz
2005-02-02  9:17 ` steven at gcc dot gnu dot org
2005-02-07  5:41 ` rakdver at gcc dot gnu dot org
2005-02-23 14:29 ` steven at gcc dot gnu dot org
2005-04-21  5:04 ` [Bug tree-optimization/17790] [4.0/4.1 " mmitchel at gcc dot gnu dot org
2005-07-08  1:44 ` mmitchel at gcc dot gnu dot org
2005-07-25  4:29 ` pinskia at gcc dot gnu dot org
2005-09-12 12:02 ` rguenth at gcc dot gnu dot org
2005-09-27 16:23 ` mmitchel at gcc dot gnu dot org

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