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* [Bug libfortran/21468] New: vectorizing libfortran
@ 2005-05-09 14:43 tkoenig at gcc dot gnu dot org
  2005-05-09 21:32 ` [Bug libfortran/21468] " pinskia at gcc dot gnu dot org
                   ` (3 more replies)
  0 siblings, 4 replies; 15+ messages in thread
From: tkoenig at gcc dot gnu dot org @ 2005-05-09 14:43 UTC (permalink / raw)
  To: gcc-bugs

Libgfortran doesn't vectorize very well at the moment.

I added some vectorization options to the Makefile on
ia64-unknown-linux-gnu, ran make under "script" and grepped
for VECTORIZED.  This is what I got:

../../../gcc-4.1-20050508/libgfortran/intrinsics/date_and_time.c:235: note: 
LOOP VECTORIZED.

None of the matmul, dotprod, ... intrinsics were vectorized.

This would probably require further improvements in gcc's vectorization
capabilities, plus special-casing stride 1 in many cases.

-- 
           Summary: vectorizing libfortran
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: enhancement
          Priority: P2
         Component: libfortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tkoenig at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21468


^ permalink raw reply	[flat|nested] 15+ messages in thread
[parent not found: <bug-21468-10391@http.gcc.gnu.org/bugzilla/>]
end of thread, other threads:[~2007-04-18 22:02 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2005-05-09 14:43 [Bug libfortran/21468] New: vectorizing libfortran tkoenig at gcc dot gnu dot org
2005-05-09 21:32 ` [Bug libfortran/21468] " pinskia at gcc dot gnu dot org
2005-09-12 15:24 ` pinskia at gcc dot gnu dot org
2005-09-14 14:47 ` pinskia at gcc dot gnu dot org
2005-09-22 22:02 ` tobi at gcc dot gnu dot org
     [not found] <bug-21468-10391@http.gcc.gnu.org/bugzilla/>
2005-11-11 21:55 ` jb at gcc dot gnu dot org
2005-11-11 23:13 ` jb at gcc dot gnu dot org
2005-11-13 19:42 ` jb at gcc dot gnu dot org
2005-11-14 19:48 ` jb at gcc dot gnu dot org
2006-01-06  4:31 ` pinskia at gcc dot gnu dot org
2006-01-06 14:47 ` jb at gcc dot gnu dot org
2006-01-08 13:49 ` dorit at il dot ibm dot com
2006-01-29 18:05 ` pinskia at gcc dot gnu dot org
2006-01-29 18:09 ` pinskia at gcc dot gnu dot org
2007-04-18 22:02 ` fxcoudert at gcc dot gnu dot org

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