[Bug c++/98750] does not detect dead code [-Wunreachable-code-break]

[egallager at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98750

Eric Gallager  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |DUPLICATE

--- Comment #6 from Eric Gallager  ---
actually this is a dup of bug 92479

*** This bug has been marked as a duplicate of bug 92479 ***

[Bug c++/98750] does not detect dead code [-Wunreachable-code-break]

[egallager at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98750

Eric Gallager  changed:

   What|Removed |Added

Summary|does not detect dead code   |does not detect dead code
   ||[-Wunreachable-code-break]
 Blocks||87403
 CC||egallager at gcc dot gnu.org

--- Comment #5 from Eric Gallager  ---
(In reply to Andrew Pinski from comment #4)
> Basically PR 46476 but for break instead of return.

As mentioned in that bug (bug 46476 comment 10), clang puts them under separate
flags, so I'm having this block the "new-warning" meta-bug


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87403
[Bug 87403] [Meta-bug] Issues that suggest a new warning

[Bug c++/98750] does not detect dead code

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98750

Andrew Pinski  changed:

   What|Removed |Added

 Ever confirmed|0   |1
   Last reconfirmed|2021-01-20 00:00:00 |2021-08-17
 Status|UNCONFIRMED |NEW
   Severity|normal  |enhancement
 Depends on||46476

--- Comment #4 from Andrew Pinski  ---
Basically PR 46476 but for break instead of return.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46476
[Bug 46476] Missing Warning about unreachable code after return
[-Wunreachable-code-return]

[Bug c++/98750] does not detect dead code

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98750

Jonathan Wakely  changed:

   What|Removed |Added

 Ever confirmed|1   |0
 Status|WAITING |UNCONFIRMED

--- Comment #3 from Jonathan Wakely  ---
GCC's -Wunreachable was removed years ago.

[Bug c++/98750] does not detect dead code

[tiagomacarios at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98750

--- Comment #2 from Tiago Macarios  ---
Correct. I was expecting a warning there.

[Bug c++/98750] does not detect dead code

[marxin at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98750

Martin Liška  changed:

   What|Removed |Added

 Status|UNCONFIRMED |WAITING
 CC||marxin at gcc dot gnu.org
   Last reconfirmed||2021-01-20
 Ever confirmed|0   |1

[Bug c++/98750] does not detect dead code

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98750

Jonathan Wakely  changed:

   What|Removed |Added

   Keywords||diagnostic

--- Comment #1 from Jonathan Wakely  ---
GCC doesn't emit any call to f() so it does detect it. Do you mean that it
doesn't give a warning?