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* [Bug libstdc++/42845] New: Want __gnu_cxx::uninitialized_aligned_{copy,swap}
@ 2010-01-22 11:36 rguenth at gcc dot gnu dot org
2010-01-22 18:55 ` [Bug libstdc++/42845] " paolo dot carlini at oracle dot com
2010-05-27 20:53 ` paolo dot carlini at oracle dot com
0 siblings, 2 replies; 3+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-01-22 11:36 UTC (permalink / raw)
To: gcc-bugs
There should be a fancy way to copy/swap raw data with a known alignment.
See PR42832 where one has to resort to memcpy and a temporary object
for {str,tr1}::functional::swap
--
Summary: Want __gnu_cxx::uninitialized_aligned_{copy,swap}
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: enhancement
Priority: P3
Component: libstdc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rguenth at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42845
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug libstdc++/42845] Want __gnu_cxx::uninitialized_aligned_{copy,swap}
2010-01-22 11:36 [Bug libstdc++/42845] New: Want __gnu_cxx::uninitialized_aligned_{copy,swap} rguenth at gcc dot gnu dot org
@ 2010-01-22 18:55 ` paolo dot carlini at oracle dot com
2010-05-27 20:53 ` paolo dot carlini at oracle dot com
1 sibling, 0 replies; 3+ messages in thread
From: paolo dot carlini at oracle dot com @ 2010-01-22 18:55 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from paolo dot carlini at oracle dot com 2010-01-22 18:54 -------
Confirmed. My plan wrt PR42832 would be first using both in std and tr1 memcpy,
as a minimal safe goal for 4.5.0. We may even try to implement this, for use in
std, in time for 4.5.0, but seems unlikely at this point.
--
paolo dot carlini at oracle dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-01-22 18:54:49
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42845
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug libstdc++/42845] Want __gnu_cxx::uninitialized_aligned_{copy,swap}
2010-01-22 11:36 [Bug libstdc++/42845] New: Want __gnu_cxx::uninitialized_aligned_{copy,swap} rguenth at gcc dot gnu dot org
2010-01-22 18:55 ` [Bug libstdc++/42845] " paolo dot carlini at oracle dot com
@ 2010-05-27 20:53 ` paolo dot carlini at oracle dot com
1 sibling, 0 replies; 3+ messages in thread
From: paolo dot carlini at oracle dot com @ 2010-05-27 20:53 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from paolo dot carlini at oracle dot com 2010-05-27 20:53 -------
Moot now.
--
paolo dot carlini at oracle dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42845
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2010-05-27 20:53 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2010-01-22 11:36 [Bug libstdc++/42845] New: Want __gnu_cxx::uninitialized_aligned_{copy,swap} rguenth at gcc dot gnu dot org
2010-01-22 18:55 ` [Bug libstdc++/42845] " paolo dot carlini at oracle dot com
2010-05-27 20:53 ` paolo dot carlini at oracle dot com
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