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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) -- links below jump to the message on this page -- 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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