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* [Bug c++/98543] New: fails to diagnose unnecessary functions
@ 2021-01-05 18:29 tiagomacarios at gmail dot com
2021-01-07 14:27 ` [Bug c++/98543] " redi at gcc dot gnu.org
2024-04-05 22:45 ` pinskia at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: tiagomacarios at gmail dot com @ 2021-01-05 18:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98543
Bug ID: 98543
Summary: fails to diagnose unnecessary functions
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: tiagomacarios at gmail dot com
Target Milestone: ---
clang diagnoses unnecessary functions, gcc fails to:
https://godbolt.org/z/vvErGh
static void f()
{
[[maybe_unused]] auto var = &f;
}
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/98543] fails to diagnose unnecessary functions
2021-01-05 18:29 [Bug c++/98543] New: fails to diagnose unnecessary functions tiagomacarios at gmail dot com
@ 2021-01-07 14:27 ` redi at gcc dot gnu.org
2024-04-05 22:45 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: redi at gcc dot gnu.org @ 2021-01-07 14:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98543
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2021-01-07
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
-Wunused-function fails to diagnose it because the address is taken. But the
address doesn't escape that function.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/98543] fails to diagnose unnecessary functions
2021-01-05 18:29 [Bug c++/98543] New: fails to diagnose unnecessary functions tiagomacarios at gmail dot com
2021-01-07 14:27 ` [Bug c++/98543] " redi at gcc dot gnu.org
@ 2024-04-05 22:45 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-04-05 22:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98543
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2021-01-07 00:00:00 |2024-4-5
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note clang's warning here is not with -Wunused either but with a different
option (and has been that way since at least clang 3.0):
```
<source>:2:13: warning: function 'f' is not needed and will not be emitted
[-Wunneeded-internal-declaration]
2 | static void f()
| ^
```
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-04-05 22:45 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2021-01-05 18:29 [Bug c++/98543] New: fails to diagnose unnecessary functions tiagomacarios at gmail dot com
2021-01-07 14:27 ` [Bug c++/98543] " redi at gcc dot gnu.org
2024-04-05 22:45 ` pinskia at gcc dot gnu.org
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