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* [Bug c++/45121] New: [4.6 Regression] c-c++-common/uninit-17.c
@ 2010-07-29 1:02 hjl dot tools at gmail dot com
2010-07-29 3:49 ` [Bug c++/45121] " hjl dot tools at gmail dot com
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: hjl dot tools at gmail dot com @ 2010-07-29 1:02 UTC (permalink / raw)
To: gcc-bugs
On Linux/x86-64, revision 162661 gave
FAIL: c-c++-common/uninit-17.c (test for warnings, line 12)
FAIL: c-c++-common/uninit-17.c (test for warnings, line 12)
FAIL: c-c++-common/uninit-17.c -Wc++-compat (test for warnings, line 12)
FAIL: c-c++-common/uninit-17.c -Wc++-compat (test for warnings, line 12)
FAIL: c-c++-common/uninit-17.c -Wc++-compat (test for excess errors)
FAIL: c-c++-common/uninit-17.c -Wc++-compat (test for excess errors)
FAIL: c-c++-common/uninit-17.c (test for excess errors)
FAIL: c-c++-common/uninit-17.c (test for excess errors)
Revision 162652 is OK.
--
Summary: [4.6 Regression] c-c++-common/uninit-17.c
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: hjl dot tools at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45121
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c++/45121] [4.6 Regression] c-c++-common/uninit-17.c
2010-07-29 1:02 [Bug c++/45121] New: [4.6 Regression] c-c++-common/uninit-17.c hjl dot tools at gmail dot com
@ 2010-07-29 3:49 ` hjl dot tools at gmail dot com
2010-07-29 5:52 ` davidxl at gcc dot gnu dot org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: hjl dot tools at gmail dot com @ 2010-07-29 3:49 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from hjl dot tools at gmail dot com 2010-07-29 03:49 -------
It is caused by revision 162653:
http://gcc.gnu.org/ml/gcc-cvs/2010-07/msg01007.html
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |davidxl at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45121
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c++/45121] [4.6 Regression] c-c++-common/uninit-17.c
2010-07-29 1:02 [Bug c++/45121] New: [4.6 Regression] c-c++-common/uninit-17.c hjl dot tools at gmail dot com
2010-07-29 3:49 ` [Bug c++/45121] " hjl dot tools at gmail dot com
@ 2010-07-29 5:52 ` davidxl at gcc dot gnu dot org
2010-07-29 9:41 ` rguenth at gcc dot gnu dot org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: davidxl at gcc dot gnu dot org @ 2010-07-29 5:52 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from davidxl at gcc dot gnu dot org 2010-07-29 05:51 -------
The problem is that before the ivopt patch, the ivopt patch introduced a iv
candidate that is unconditionally initialized with b:
ivtmp_xxx = b (D);
After the patch, this assignment no longer exists, and the use of b in the test
is via a PHI def -- thus the warning becomes 'may be uninitialized'.
Will fix the test case.
David
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45121
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c++/45121] [4.6 Regression] c-c++-common/uninit-17.c
2010-07-29 1:02 [Bug c++/45121] New: [4.6 Regression] c-c++-common/uninit-17.c hjl dot tools at gmail dot com
2010-07-29 3:49 ` [Bug c++/45121] " hjl dot tools at gmail dot com
2010-07-29 5:52 ` davidxl at gcc dot gnu dot org
@ 2010-07-29 9:41 ` rguenth at gcc dot gnu dot org
2010-07-29 17:21 ` davidxl at gcc dot gnu dot org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-07-29 9:41 UTC (permalink / raw)
To: gcc-bugs
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-07-29 09:40:46
date| |
Target Milestone|--- |4.6.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45121
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c++/45121] [4.6 Regression] c-c++-common/uninit-17.c
2010-07-29 1:02 [Bug c++/45121] New: [4.6 Regression] c-c++-common/uninit-17.c hjl dot tools at gmail dot com
` (2 preceding siblings ...)
2010-07-29 9:41 ` rguenth at gcc dot gnu dot org
@ 2010-07-29 17:21 ` davidxl at gcc dot gnu dot org
2010-07-29 22:30 ` hjl dot tools at gmail dot com
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: davidxl at gcc dot gnu dot org @ 2010-07-29 17:21 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from davidxl at gcc dot gnu dot org 2010-07-29 17:21 -------
Fixed in r162687
--
davidxl at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45121
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c++/45121] [4.6 Regression] c-c++-common/uninit-17.c
2010-07-29 1:02 [Bug c++/45121] New: [4.6 Regression] c-c++-common/uninit-17.c hjl dot tools at gmail dot com
` (3 preceding siblings ...)
2010-07-29 17:21 ` davidxl at gcc dot gnu dot org
@ 2010-07-29 22:30 ` hjl dot tools at gmail dot com
2010-07-30 14:48 ` hjl dot tools at gmail dot com
2010-07-30 18:54 ` hjl dot tools at gmail dot com
6 siblings, 0 replies; 8+ messages in thread
From: hjl dot tools at gmail dot com @ 2010-07-29 22:30 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from hjl dot tools at gmail dot com 2010-07-29 22:30 -------
It isn't fixed. Revision 162688 gave
FAIL: c-c++-common/uninit-17.c (test for warnings, line 14)
FAIL: c-c++-common/uninit-17.c -Wc++-compat (test for warnings, line 14)
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45121
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c++/45121] [4.6 Regression] c-c++-common/uninit-17.c
2010-07-29 1:02 [Bug c++/45121] New: [4.6 Regression] c-c++-common/uninit-17.c hjl dot tools at gmail dot com
` (4 preceding siblings ...)
2010-07-29 22:30 ` hjl dot tools at gmail dot com
@ 2010-07-30 14:48 ` hjl dot tools at gmail dot com
2010-07-30 18:54 ` hjl dot tools at gmail dot com
6 siblings, 0 replies; 8+ messages in thread
From: hjl dot tools at gmail dot com @ 2010-07-30 14:48 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from hjl dot tools at gmail dot com 2010-07-30 14:48 -------
In fact, revision 162688 gave:
FAIL: c-c++-common/uninit-17.c (test for warnings, line 12)
FAIL: c-c++-common/uninit-17.c (test for warnings, line 14)
FAIL: c-c++-common/uninit-17.c (test for excess errors)
FAIL: c-c++-common/uninit-17.c -Wc++-compat (test for warnings, line 12)
FAIL: c-c++-common/uninit-17.c -Wc++-compat (test for warnings, line 14)
FAIL: c-c++-common/uninit-17.c -Wc++-compat (test for excess errors)
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2010-07-29 09:40:46 |2010-07-30 14:48:04
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45121
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c++/45121] [4.6 Regression] c-c++-common/uninit-17.c
2010-07-29 1:02 [Bug c++/45121] New: [4.6 Regression] c-c++-common/uninit-17.c hjl dot tools at gmail dot com
` (5 preceding siblings ...)
2010-07-30 14:48 ` hjl dot tools at gmail dot com
@ 2010-07-30 18:54 ` hjl dot tools at gmail dot com
6 siblings, 0 replies; 8+ messages in thread
From: hjl dot tools at gmail dot com @ 2010-07-30 18:54 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from hjl dot tools at gmail dot com 2010-07-30 18:54 -------
Fixed by revision 162720.
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45121
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2010-07-30 18:54 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
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2010-07-29 1:02 [Bug c++/45121] New: [4.6 Regression] c-c++-common/uninit-17.c hjl dot tools at gmail dot com
2010-07-29 3:49 ` [Bug c++/45121] " hjl dot tools at gmail dot com
2010-07-29 5:52 ` davidxl at gcc dot gnu dot org
2010-07-29 9:41 ` rguenth at gcc dot gnu dot org
2010-07-29 17:21 ` davidxl at gcc dot gnu dot org
2010-07-29 22:30 ` hjl dot tools at gmail dot com
2010-07-30 14:48 ` hjl dot tools at gmail dot com
2010-07-30 18:54 ` hjl dot tools at gmail dot com
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