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* [Bug c++/96004] New: Copy elision with conditional
@ 2020-06-30 14:24 antoshkka at gmail dot com
2021-11-19 20:42 ` [Bug c++/96004] " gcc_bugzilla at axeitado dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: antoshkka at gmail dot com @ 2020-06-30 14:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96004
Bug ID: 96004
Summary: Copy elision with conditional
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: antoshkka at gmail dot com
Target Milestone: ---
Consider the example:
struct Struct {
Struct() = default;
Struct(Struct&&);
};
Struct question10(bool b) {
if (b) {
Struct s{};
return s;
} else {
return {};
}
}
It is possible to elide move constructor call as the lifetimes of object `s`
and `return {}` do not intersect.
(some other compilers already do copy elision in that place
https://godbolt.org/z/wdpLkT )
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/96004] Copy elision with conditional
2020-06-30 14:24 [Bug c++/96004] New: Copy elision with conditional antoshkka at gmail dot com
@ 2021-11-19 20:42 ` gcc_bugzilla at axeitado dot com
2022-10-31 18:09 ` pinskia at gcc dot gnu.org
2023-06-06 16:11 ` jason at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: gcc_bugzilla at axeitado dot com @ 2021-11-19 20:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96004
--- Comment #1 from Óscar Fuentes <gcc_bugzilla at axeitado dot com> ---
This looks like a duplicate of PR53637 / PR53637.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/96004] Copy elision with conditional
2020-06-30 14:24 [Bug c++/96004] New: Copy elision with conditional antoshkka at gmail dot com
2021-11-19 20:42 ` [Bug c++/96004] " gcc_bugzilla at axeitado dot com
@ 2022-10-31 18:09 ` pinskia at gcc dot gnu.org
2023-06-06 16:11 ` jason at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-10-31 18:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96004
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2022-10-31
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/96004] Copy elision with conditional
2020-06-30 14:24 [Bug c++/96004] New: Copy elision with conditional antoshkka at gmail dot com
2021-11-19 20:42 ` [Bug c++/96004] " gcc_bugzilla at axeitado dot com
2022-10-31 18:09 ` pinskia at gcc dot gnu.org
@ 2023-06-06 16:11 ` jason at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: jason at gcc dot gnu.org @ 2023-06-06 16:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96004
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu.org
Status|NEW |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> ---
(In reply to Óscar Fuentes from comment #1)
> This looks like a duplicate of PR53637 / PR53637.
More 58487.
*** This bug has been marked as a duplicate of bug 58487 ***
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-06-06 16:11 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-06-30 14:24 [Bug c++/96004] New: Copy elision with conditional antoshkka at gmail dot com
2021-11-19 20:42 ` [Bug c++/96004] " gcc_bugzilla at axeitado dot com
2022-10-31 18:09 ` pinskia at gcc dot gnu.org
2023-06-06 16:11 ` jason at gcc dot gnu.org
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