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* [Bug middle-end/13222] New: -O -funroll-loops miscompiles POOMA test
@ 2003-11-28 19:23 rguenth at tat dot physik dot uni-tuebingen dot de
2003-12-01 2:25 ` [Bug optimization/13222] " pinskia at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: rguenth at tat dot physik dot uni-tuebingen dot de @ 2003-11-28 19:23 UTC (permalink / raw)
To: gcc-bugs
The CrossBox test of the POOMA library is miscompiled on powerpc-linux
(g++ (GCC) 3.3.2 (Debian)) if optimizing with -g -fno-exceptions -O
-funroll-loops. Both changing -O to -O2, or removing -funroll-loops fixes the
problem. Also the problem does not appear on i486-linux (same Debian release).
I suspect this is yet another loop unroller bug.
The preprocessed testcase can be fetched from
http://www.tat.physik.uni-tuebingen.de/~rguenth/gcc/CrossBox-281103.ii.gz
--
Summary: -O -funroll-loops miscompiles POOMA test
Product: gcc
Version: 3.3.2
Status: UNCONFIRMED
Severity: critical
Priority: P2
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rguenth at tat dot physik dot uni-tuebingen dot de
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: powerpc-linux
GCC host triplet: powerpc-linux
GCC target triplet: powerpc-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13222
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug optimization/13222] -O -funroll-loops miscompiles POOMA test
2003-11-28 19:23 [Bug middle-end/13222] New: -O -funroll-loops miscompiles POOMA test rguenth at tat dot physik dot uni-tuebingen dot de
@ 2003-12-01 2:25 ` pinskia at gcc dot gnu dot org
2004-02-06 1:29 ` [Bug optimization/13222] [3.3 only] " pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2003-12-01 2:25 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|critical |normal
Component|middle-end |optimization
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13222
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug optimization/13222] [3.3 only] -O -funroll-loops miscompiles POOMA test
2003-11-28 19:23 [Bug middle-end/13222] New: -O -funroll-loops miscompiles POOMA test rguenth at tat dot physik dot uni-tuebingen dot de
2003-12-01 2:25 ` [Bug optimization/13222] " pinskia at gcc dot gnu dot org
@ 2004-02-06 1:29 ` pinskia at gcc dot gnu dot org
2004-02-15 12:38 ` gdr at gcc dot gnu dot org
2004-03-31 21:07 ` rguenth at tat dot physik dot uni-tuebingen dot de
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-02-06 1:29 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-02-06 01:29 -------
I think this is a dup of any other bug.
--
What |Removed |Added
----------------------------------------------------------------------------
Summary|-O -funroll-loops |[3.3 only] -O -funroll-loops
|miscompiles POOMA test |miscompiles POOMA test
Target Milestone|--- |3.3.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13222
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug optimization/13222] [3.3 only] -O -funroll-loops miscompiles POOMA test
2003-11-28 19:23 [Bug middle-end/13222] New: -O -funroll-loops miscompiles POOMA test rguenth at tat dot physik dot uni-tuebingen dot de
2003-12-01 2:25 ` [Bug optimization/13222] " pinskia at gcc dot gnu dot org
2004-02-06 1:29 ` [Bug optimization/13222] [3.3 only] " pinskia at gcc dot gnu dot org
@ 2004-02-15 12:38 ` gdr at gcc dot gnu dot org
2004-03-31 21:07 ` rguenth at tat dot physik dot uni-tuebingen dot de
3 siblings, 0 replies; 5+ messages in thread
From: gdr at gcc dot gnu dot org @ 2004-02-15 12:38 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From gdr at gcc dot gnu dot org 2004-02-15 12:38 -------
Adjust milestone
--
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|3.3.3 |3.3.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13222
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug optimization/13222] [3.3 only] -O -funroll-loops miscompiles POOMA test
2003-11-28 19:23 [Bug middle-end/13222] New: -O -funroll-loops miscompiles POOMA test rguenth at tat dot physik dot uni-tuebingen dot de
` (2 preceding siblings ...)
2004-02-15 12:38 ` gdr at gcc dot gnu dot org
@ 2004-03-31 21:07 ` rguenth at tat dot physik dot uni-tuebingen dot de
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at tat dot physik dot uni-tuebingen dot de @ 2004-03-31 21:07 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From rguenth at tat dot physik dot uni-tuebingen dot de 2004-03-31 21:07 -------
I can no longer reproduce this with g++ (GCC) 3.3.3 (Debian 20040321), so it
seems fixed.
Richard.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13222
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2004-03-31 21:07 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2003-11-28 19:23 [Bug middle-end/13222] New: -O -funroll-loops miscompiles POOMA test rguenth at tat dot physik dot uni-tuebingen dot de
2003-12-01 2:25 ` [Bug optimization/13222] " pinskia at gcc dot gnu dot org
2004-02-06 1:29 ` [Bug optimization/13222] [3.3 only] " pinskia at gcc dot gnu dot org
2004-02-15 12:38 ` gdr at gcc dot gnu dot org
2004-03-31 21:07 ` rguenth at tat dot physik dot uni-tuebingen dot de
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