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* [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
@ 2007-06-05 8:31 tbm at cyrius dot com
2007-06-06 23:44 ` [Bug target/32218] " sje at cup dot hp dot com
` (15 more replies)
0 siblings, 16 replies; 17+ messages in thread
From: tbm at cyrius dot com @ 2007-06-05 8:31 UTC (permalink / raw)
To: gcc-bugs
I'm getting the following segfault on IA-64 with current 4.2 and 4.3.
This goes back at least to 20060721 - I don't have anything older to
test here at the moment. I don't see this segfault on x86_64.
Unfortunately I don't have a working gdb on ia-64 at the moment so
I cannot supply a backtrace.
tbm@coconut0:~$ /usr/lib/gcc-snapshot/bin/gcc -c -O1 -ftree-vectorize
/home/tbm/poc-streamer-ogg-write.c
/home/tbm/poc-streamer-ogg-write.c: In function 'ogg_fill_page_hdr':
/home/tbm/poc-streamer-ogg-write.c:14: internal compiler error: Segmentation
fault
Please submit a full bug report,
with preprocessed source if appropriate.
Testcase:
typedef struct buf_s
{
unsigned long size;
}
buf_t;
typedef struct ogg_page_s
{
unsigned char page_segments;
unsigned char lacing_values[255];
buf_t raw;
}
ogg_page_t;
ogg_fill_page_hdr (ogg_page_t *page)
{
unsigned long size = page->page_segments;
int i;
for (i = 0; i < page->page_segments; i++)
size += page->lacing_values[i];
if (page->raw.size < size)
for (i = 0; i < page->page_segments; i++)
continue;
}
--
Summary: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tbm at cyrius dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
@ 2007-06-06 23:44 ` sje at cup dot hp dot com
2007-06-30 9:15 ` pinskia at gcc dot gnu dot org
` (14 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: sje at cup dot hp dot com @ 2007-06-06 23:44 UTC (permalink / raw)
To: gcc-bugs
--
sje at cup dot hp dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |sje at cup dot hp dot com
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
GCC target triplet| |ia64-*-*
Last reconfirmed|0000-00-00 00:00:00 |2007-06-06 23:44:34
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
2007-06-06 23:44 ` [Bug target/32218] " sje at cup dot hp dot com
@ 2007-06-30 9:15 ` pinskia at gcc dot gnu dot org
2007-07-01 11:23 ` dorit at gcc dot gnu dot org
` (13 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-06-30 9:15 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
Target Milestone|--- |4.2.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
2007-06-06 23:44 ` [Bug target/32218] " sje at cup dot hp dot com
2007-06-30 9:15 ` pinskia at gcc dot gnu dot org
@ 2007-07-01 11:23 ` dorit at gcc dot gnu dot org
2007-07-01 11:32 ` tbm at cyrius dot com
` (12 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: dorit at gcc dot gnu dot org @ 2007-07-01 11:23 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from dorit at gcc dot gnu dot org 2007-07-01 11:23 -------
(In reply to comment #0)
> I'm getting the following segfault on IA-64 with current 4.2 and 4.3.
> This goes back at least to 20060721 - I don't have anything older to
> test here at the moment. I don't see this segfault on x86_64.
> Unfortunately I don't have a working gdb on ia-64 at the moment so
> I cannot supply a backtrace.
Can someone with access to ia64 provide more detail? gdb backtrace? vectorizer
dump file (with -fdump-tree-vect-details)? (can't reproduce it on powerpc and
i386)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
` (2 preceding siblings ...)
2007-07-01 11:23 ` dorit at gcc dot gnu dot org
@ 2007-07-01 11:32 ` tbm at cyrius dot com
2007-07-01 11:33 ` tbm at cyrius dot com
` (11 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: tbm at cyrius dot com @ 2007-07-01 11:32 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from tbm at cyrius dot com 2007-07-01 11:32 -------
(In reply to comment #1)
> Can someone with access to ia64 provide more detail? gdb backtrace? vectorizer
> dump file (with -fdump-tree-vect-details)? (can't reproduce it on powerpc and
> i386)
I'm afraid I still don't have a working gdb, but I'll attach the dump file.
Steve, can you post a backtrace?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
` (3 preceding siblings ...)
2007-07-01 11:32 ` tbm at cyrius dot com
@ 2007-07-01 11:33 ` tbm at cyrius dot com
2007-07-03 20:19 ` sje at cup dot hp dot com
` (10 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: tbm at cyrius dot com @ 2007-07-01 11:33 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from tbm at cyrius dot com 2007-07-01 11:33 -------
Created an attachment (id=13812)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13812&action=view)
dump file of -fdump-tree-vect-details
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
` (4 preceding siblings ...)
2007-07-01 11:33 ` tbm at cyrius dot com
@ 2007-07-03 20:19 ` sje at cup dot hp dot com
2007-07-04 3:24 ` mmitchel at gcc dot gnu dot org
` (9 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: sje at cup dot hp dot com @ 2007-07-03 20:19 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from sje at cup dot hp dot com 2007-07-03 20:19 -------
I just tried to reproduce this bug on IA64 Linux (and HP-UX) with ToT sources
(version 126242) and was not able to. Can anyone else reproduce this with ToT
sources?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
` (5 preceding siblings ...)
2007-07-03 20:19 ` sje at cup dot hp dot com
@ 2007-07-04 3:24 ` mmitchel at gcc dot gnu dot org
2007-07-20 3:52 ` mmitchel at gcc dot gnu dot org
` (8 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2007-07-04 3:24 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
` (6 preceding siblings ...)
2007-07-04 3:24 ` mmitchel at gcc dot gnu dot org
@ 2007-07-20 3:52 ` mmitchel at gcc dot gnu dot org
2007-07-24 8:53 ` dorit at gcc dot gnu dot org
` (7 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2007-07-20 3:52 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.2.1 |4.2.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
` (7 preceding siblings ...)
2007-07-20 3:52 ` mmitchel at gcc dot gnu dot org
@ 2007-07-24 8:53 ` dorit at gcc dot gnu dot org
2007-07-24 18:37 ` tbm at cyrius dot com
` (6 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: dorit at gcc dot gnu dot org @ 2007-07-24 8:53 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from dorit at gcc dot gnu dot org 2007-07-24 08:53 -------
(In reply to comment #4)
> I just tried to reproduce this bug on IA64 Linux (and HP-UX) with ToT sources
> (version 126242) and was not able to. Can anyone else reproduce this with ToT
> sources?
does the fact that no one has responded yet means that this failure cannot be
reproduced anymore?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
` (8 preceding siblings ...)
2007-07-24 8:53 ` dorit at gcc dot gnu dot org
@ 2007-07-24 18:37 ` tbm at cyrius dot com
2007-07-25 16:20 ` sje at cup dot hp dot com
` (5 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: tbm at cyrius dot com @ 2007-07-24 18:37 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from tbm at cyrius dot com 2007-07-24 18:37 -------
(In reply to comment #5)
> does the fact that no one has responded yet means that this failure cannot be
> reproduced anymore?
I'll try next week and let you know.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
` (9 preceding siblings ...)
2007-07-24 18:37 ` tbm at cyrius dot com
@ 2007-07-25 16:20 ` sje at cup dot hp dot com
2007-07-25 20:24 ` sje at gcc dot gnu dot org
` (4 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: sje at cup dot hp dot com @ 2007-07-25 16:20 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from sje at cup dot hp dot com 2007-07-25 16:20 -------
Well, that was silly. I couldn't reproduce the problem because I had a patch
in my local tree. Here is the patch I created, I will submit it to
gcc-patches.
Basically, get_vectype_for_scalar_type can return a NULL_TREE and we need to
allow for that and not call TYPE_MODE with a NULL_TREE.
Index: tree-vect-patterns.c
===================================================================
--- tree-vect-patterns.c (revision 126897)
+++ tree-vect-patterns.c (working copy)
@@ -651,8 +651,9 @@ vect_pattern_recog_1 (
|| (icode = optab->handlers[(int) vec_mode].insn_code) ==
CODE_FOR_nothing
|| (type_out
- && (insn_data[icode].operand[0].mode !=
- TYPE_MODE (get_vectype_for_scalar_type (type_out)))))
+ && (!get_vectype_for_scalar_type (type_out)
+ || (insn_data[icode].operand[0].mode !=
+ TYPE_MODE (get_vectype_for_scalar_type (type_out))))))
return;
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
` (10 preceding siblings ...)
2007-07-25 16:20 ` sje at cup dot hp dot com
@ 2007-07-25 20:24 ` sje at gcc dot gnu dot org
2007-07-26 16:30 ` sje at cup dot hp dot com
` (3 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: sje at gcc dot gnu dot org @ 2007-07-25 20:24 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from sje at gcc dot gnu dot org 2007-07-25 20:24 -------
Subject: Bug 32218
Author: sje
Date: Wed Jul 25 20:24:15 2007
New Revision: 126931
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126931
Log:
PR target/32218
* tree-vect-patterns.c (vect_pattern_recog_1): Check for valid type.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-vect-patterns.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
` (11 preceding siblings ...)
2007-07-25 20:24 ` sje at gcc dot gnu dot org
@ 2007-07-26 16:30 ` sje at cup dot hp dot com
2007-07-26 16:38 ` pluto at agmk dot net
` (2 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: sje at cup dot hp dot com @ 2007-07-26 16:30 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from sje at cup dot hp dot com 2007-07-26 16:30 -------
The fix for this was approved and checked into mainline.
--
sje at cup dot hp dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
` (12 preceding siblings ...)
2007-07-26 16:30 ` sje at cup dot hp dot com
@ 2007-07-26 16:38 ` pluto at agmk dot net
2007-07-26 16:44 ` sje at cup dot hp dot com
2007-07-30 15:16 ` sje at gcc dot gnu dot org
15 siblings, 0 replies; 17+ messages in thread
From: pluto at agmk dot net @ 2007-07-26 16:38 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from pluto at agmk dot net 2007-07-26 16:37 -------
(In reply to comment #9)
> The fix for this was approved and checked into mainline.
resolved/fixed? what about 4.2 branch? it's a regression.
--
pluto at agmk dot net changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pluto at agmk dot net
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
` (13 preceding siblings ...)
2007-07-26 16:38 ` pluto at agmk dot net
@ 2007-07-26 16:44 ` sje at cup dot hp dot com
2007-07-30 15:16 ` sje at gcc dot gnu dot org
15 siblings, 0 replies; 17+ messages in thread
From: sje at cup dot hp dot com @ 2007-07-26 16:44 UTC (permalink / raw)
To: gcc-bugs
------- Comment #11 from sje at cup dot hp dot com 2007-07-26 16:44 -------
Sorry, I missed the fact that it was a regression. I will test the 4.2 branch
and then backport it.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
` (14 preceding siblings ...)
2007-07-26 16:44 ` sje at cup dot hp dot com
@ 2007-07-30 15:16 ` sje at gcc dot gnu dot org
15 siblings, 0 replies; 17+ messages in thread
From: sje at gcc dot gnu dot org @ 2007-07-30 15:16 UTC (permalink / raw)
To: gcc-bugs
------- Comment #12 from sje at gcc dot gnu dot org 2007-07-30 15:16 -------
Subject: Bug 32218
Author: sje
Date: Mon Jul 30 15:15:54 2007
New Revision: 127062
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=127062
Log:
PR target/32218
* tree-vect-patterns.c (vect_pattern_recog_1): Check for valid type.
Modified:
branches/gcc-4_2-branch/gcc/ChangeLog
branches/gcc-4_2-branch/gcc/tree-vect-patterns.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218
^ permalink raw reply [flat|nested] 17+ messages in thread
end of thread, other threads:[~2007-07-30 15:16 UTC | newest]
Thread overview: 17+ messages (download: mbox.gz / follow: Atom feed)
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2007-06-05 8:31 [Bug tree-optimization/32218] New: [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize tbm at cyrius dot com
2007-06-06 23:44 ` [Bug target/32218] " sje at cup dot hp dot com
2007-06-30 9:15 ` pinskia at gcc dot gnu dot org
2007-07-01 11:23 ` dorit at gcc dot gnu dot org
2007-07-01 11:32 ` tbm at cyrius dot com
2007-07-01 11:33 ` tbm at cyrius dot com
2007-07-03 20:19 ` sje at cup dot hp dot com
2007-07-04 3:24 ` mmitchel at gcc dot gnu dot org
2007-07-20 3:52 ` mmitchel at gcc dot gnu dot org
2007-07-24 8:53 ` dorit at gcc dot gnu dot org
2007-07-24 18:37 ` tbm at cyrius dot com
2007-07-25 16:20 ` sje at cup dot hp dot com
2007-07-25 20:24 ` sje at gcc dot gnu dot org
2007-07-26 16:30 ` sje at cup dot hp dot com
2007-07-26 16:38 ` pluto at agmk dot net
2007-07-26 16:44 ` sje at cup dot hp dot com
2007-07-30 15:16 ` sje at gcc dot gnu dot org
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