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* [Bug c++/16386] New: [ABI] attribute aligned,packed shifting [3.2/3.3/3.4]
@ 2004-07-06 16:37 bkoz at gcc dot gnu dot org
2004-07-06 16:38 ` [Bug c++/16386] " bkoz at gcc dot gnu dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: bkoz at gcc dot gnu dot org @ 2004-07-06 16:37 UTC (permalink / raw)
To: gcc-bugs
First reported by Michael Wong.
The attached testcase produces different output depending on the version of gcc
used. This can be reproduced on powerpc-linux as well.
3.2.3
size align
ua 4 1
ua.a 4 1
ub 4 1
ub.b 4 1
3.3.3
size align
ua 16 16
ua.a 4 16
ub 16 16
ub.b 4 16
3.4.1
size align
ua 16 16
ua.a 4 4
ub 16 16
ub.b 4 4
--
Summary: [ABI] attribute aligned,packed shifting [3.2/3.3/3.4]
Product: gcc
Version: 3.5.0
Status: UNCONFIRMED
Keywords: ABI
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: bkoz at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16386
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/16386] [ABI] attribute aligned,packed shifting [3.2/3.3/3.4]
2004-07-06 16:37 [Bug c++/16386] New: " bkoz at gcc dot gnu dot org
@ 2004-07-06 16:38 ` bkoz at gcc dot gnu dot org
2004-07-06 16:38 ` bkoz at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bkoz at gcc dot gnu dot org @ 2004-07-06 16:38 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |michaelw at ca dot ibm dot
| |com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16386
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/16386] [ABI] attribute aligned,packed shifting [3.2/3.3/3.4]
2004-07-06 16:37 [Bug c++/16386] New: " bkoz at gcc dot gnu dot org
2004-07-06 16:38 ` [Bug c++/16386] " bkoz at gcc dot gnu dot org
@ 2004-07-06 16:38 ` bkoz at gcc dot gnu dot org
2004-07-06 16:43 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bkoz at gcc dot gnu dot org @ 2004-07-06 16:38 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bkoz at gcc dot gnu dot org 2004-07-06 16:38 -------
Created an attachment (id=6697)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6697&action=view)
test case
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16386
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/16386] [ABI] attribute aligned,packed shifting [3.2/3.3/3.4]
2004-07-06 16:37 [Bug c++/16386] New: " bkoz at gcc dot gnu dot org
2004-07-06 16:38 ` [Bug c++/16386] " bkoz at gcc dot gnu dot org
2004-07-06 16:38 ` bkoz at gcc dot gnu dot org
@ 2004-07-06 16:43 ` pinskia at gcc dot gnu dot org
2005-07-02 1:21 ` pinskia at gcc dot gnu dot org
2005-07-02 1:21 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-07-06 16:43 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-07-06 16:43 -------
aligned and packed are conflicting attributes.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16386
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/16386] [ABI] attribute aligned,packed shifting [3.2/3.3/3.4]
2004-07-06 16:37 [Bug c++/16386] New: " bkoz at gcc dot gnu dot org
` (2 preceding siblings ...)
2004-07-06 16:43 ` pinskia at gcc dot gnu dot org
@ 2005-07-02 1:21 ` pinskia at gcc dot gnu dot org
2005-07-02 1:21 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-07-02 1:21 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-07-02 01:21 -------
This is only reproducible with the C++ front-end, the C front-end produces:
size align
ua 16 16
ua.a 4 16
ub 16 16
ub.b 4 16
Always.
I think this should be rejected as they are conflicting attributes.
--
What |Removed |Added
----------------------------------------------------------------------------
Keywords|ABI |accepts-invalid
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16386
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/16386] [ABI] attribute aligned,packed shifting [3.2/3.3/3.4]
2004-07-06 16:37 [Bug c++/16386] New: " bkoz at gcc dot gnu dot org
` (3 preceding siblings ...)
2005-07-02 1:21 ` pinskia at gcc dot gnu dot org
@ 2005-07-02 1:21 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-07-02 1:21 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-07-02 01:21 -------
Confirmed.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2005-07-02 01:21:39
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16386
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2013-11-07 10:34 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2013-11-07 10:34 ` [Bug c++/16386] [ABI] attribute aligned,packed shifting [3.2/3.3/3.4] paolo.carlini at oracle dot com
2004-07-06 16:37 [Bug c++/16386] New: " bkoz at gcc dot gnu dot org
2004-07-06 16:38 ` [Bug c++/16386] " bkoz at gcc dot gnu dot org
2004-07-06 16:38 ` bkoz at gcc dot gnu dot org
2004-07-06 16:43 ` pinskia at gcc dot gnu dot org
2005-07-02 1:21 ` pinskia at gcc dot gnu dot org
2005-07-02 1:21 ` pinskia at gcc dot gnu dot org
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