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* [Bug tree-optimization/32093] New: BOOT_CFLAGS="-O2 -g -msse2 -ftree-vectorize" causes dfp tests to fail
@ 2007-05-26 9:18 pinskia at gcc dot gnu dot org
2007-06-16 12:57 ` [Bug tree-optimization/32093] " hjl at lucon dot org
` (3 more replies)
0 siblings, 4 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-05-26 9:18 UTC (permalink / raw)
To: gcc-bugs
I don't know if this is a regression or not. But I decided to test my latest
data-ref patch more than I tested my old one via testing bootstrap with the
vectorizer turned on, I noticed the dfp tests would fail. The assembly for the
tests were the same, the problem is we were creating wrong code for one of the
support functions in libgcc, I have not had time to check which one. I thought
I would file this bug before forgetting about this issue.
Again BOOT_CFLAGS was set to "-O2 -g -msse2 -ftree-vectorize". When I have
more time I will look into it.
--
Summary: BOOT_CFLAGS="-O2 -g -msse2 -ftree-vectorize" causes dfp
tests to fail
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pinskia at gcc dot gnu dot org
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32093
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/32093] BOOT_CFLAGS="-O2 -g -msse2 -ftree-vectorize" causes dfp tests to fail
2007-05-26 9:18 [Bug tree-optimization/32093] New: BOOT_CFLAGS="-O2 -g -msse2 -ftree-vectorize" causes dfp tests to fail pinskia at gcc dot gnu dot org
@ 2007-06-16 12:57 ` hjl at lucon dot org
2007-06-16 23:51 ` dirtyepic at gentoo dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 6+ messages in thread
From: hjl at lucon dot org @ 2007-06-16 12:57 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from hjl at lucon dot org 2007-06-16 12:57 -------
I don't see any regressions with BOOT_CFLAGS set to "-O2 -g -msse2
-ftree-vectorize":
http://gcc.gnu.org/ml/gcc-testresults/2007-06/msg00756.html
with 83 loop vectorized vs.
http://gcc.gnu.org/ml/gcc-testresults/2007-06/msg00723.html.
However, I am using Intel BID library for DFP instead of libdecnumber,
which has known bugs:
http://gcc.gnu.org/ml/gcc/2007-06/msg00347.html
--
hjl at lucon dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hjl at lucon dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32093
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/32093] BOOT_CFLAGS="-O2 -g -msse2 -ftree-vectorize" causes dfp tests to fail
2007-05-26 9:18 [Bug tree-optimization/32093] New: BOOT_CFLAGS="-O2 -g -msse2 -ftree-vectorize" causes dfp tests to fail pinskia at gcc dot gnu dot org
2007-06-16 12:57 ` [Bug tree-optimization/32093] " hjl at lucon dot org
@ 2007-06-16 23:51 ` dirtyepic at gentoo dot org
2007-06-17 8:54 ` ubizjak at gmail dot com
2007-07-24 8:51 ` dorit at gcc dot gnu dot org
3 siblings, 0 replies; 6+ messages in thread
From: dirtyepic at gentoo dot org @ 2007-06-16 23:51 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from dirtyepic at gentoo dot org 2007-06-16 23:51 -------
i'm wondering if this could be related to a problem we're seeing with segfaults
caused by misaligned movdqa instructions in zlib compiled with
-ftree-vectorize.
https://bugs.gentoo.org/show_bug.cgi?id=151394#c13
--
dirtyepic at gentoo dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dirtyepic at gentoo dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32093
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/32093] BOOT_CFLAGS="-O2 -g -msse2 -ftree-vectorize" causes dfp tests to fail
2007-05-26 9:18 [Bug tree-optimization/32093] New: BOOT_CFLAGS="-O2 -g -msse2 -ftree-vectorize" causes dfp tests to fail pinskia at gcc dot gnu dot org
2007-06-16 12:57 ` [Bug tree-optimization/32093] " hjl at lucon dot org
2007-06-16 23:51 ` dirtyepic at gentoo dot org
@ 2007-06-17 8:54 ` ubizjak at gmail dot com
2007-07-24 8:51 ` dorit at gcc dot gnu dot org
3 siblings, 0 replies; 6+ messages in thread
From: ubizjak at gmail dot com @ 2007-06-17 8:54 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from ubizjak at gmail dot com 2007-06-17 08:53 -------
(In reply to comment #2)
> i'm wondering if this could be related to a problem we're seeing with segfaults
> caused by misaligned movdqa instructions in zlib compiled with
> -ftree-vectorize.
Please open a new bug for this problem.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32093
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/32093] BOOT_CFLAGS="-O2 -g -msse2 -ftree-vectorize" causes dfp tests to fail
2007-05-26 9:18 [Bug tree-optimization/32093] New: BOOT_CFLAGS="-O2 -g -msse2 -ftree-vectorize" causes dfp tests to fail pinskia at gcc dot gnu dot org
` (2 preceding siblings ...)
2007-06-17 8:54 ` ubizjak at gmail dot com
@ 2007-07-24 8:51 ` dorit at gcc dot gnu dot org
3 siblings, 0 replies; 6+ messages in thread
From: dorit at gcc dot gnu dot org @ 2007-07-24 8:51 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from dorit at gcc dot gnu dot org 2007-07-24 08:50 -------
> i'm wondering if this could be related to a problem we're seeing with segfaults
> caused by misaligned movdqa instructions in zlib compiled with
> -ftree-vectorize.
A fix for PR25413 was committed to mainline.
Ryan, could you please check if it solves the zlib miscompilation?
Andrew, would you plase check if it solves the libgcc miscompilation that you
are seeing?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32093
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/32093] BOOT_CFLAGS="-O2 -g -msse2 -ftree-vectorize" causes dfp tests to fail
[not found] <bug-32093-4@http.gcc.gnu.org/bugzilla/>
@ 2021-08-22 3:44 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-22 3:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32093
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Fixed a long time ago so closing.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-08-22 3:44 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2007-05-26 9:18 [Bug tree-optimization/32093] New: BOOT_CFLAGS="-O2 -g -msse2 -ftree-vectorize" causes dfp tests to fail pinskia at gcc dot gnu dot org
2007-06-16 12:57 ` [Bug tree-optimization/32093] " hjl at lucon dot org
2007-06-16 23:51 ` dirtyepic at gentoo dot org
2007-06-17 8:54 ` ubizjak at gmail dot com
2007-07-24 8:51 ` dorit at gcc dot gnu dot org
[not found] <bug-32093-4@http.gcc.gnu.org/bugzilla/>
2021-08-22 3:44 ` pinskia at gcc dot gnu.org
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