public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug c++/81159] New warning idea: -Wself-move
       [not found] <bug-81159-4@http.gcc.gnu.org/bugzilla/>
@ 2022-08-09 18:04 ` mpolacek at gcc dot gnu.org
  2022-08-26 18:02 ` cvs-commit at gcc dot gnu.org
                   ` (4 subsequent siblings)
  5 siblings, 0 replies; 6+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2022-08-09 18:04 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81159

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch

--- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Patch posted: https://gcc.gnu.org/pipermail/gcc-patches/2022-August/599503.html

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug c++/81159] New warning idea: -Wself-move
       [not found] <bug-81159-4@http.gcc.gnu.org/bugzilla/>
  2022-08-09 18:04 ` [Bug c++/81159] New warning idea: -Wself-move mpolacek at gcc dot gnu.org
@ 2022-08-26 18:02 ` cvs-commit at gcc dot gnu.org
  2022-08-26 18:03 ` mpolacek at gcc dot gnu.org
                   ` (3 subsequent siblings)
  5 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-08-26 18:02 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81159

--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Marek Polacek <mpolacek@gcc.gnu.org>:

https://gcc.gnu.org/g:0abb78dda084a14b3d955757c6431fff71c263f3

commit r13-2227-g0abb78dda084a14b3d955757c6431fff71c263f3
Author: Marek Polacek <polacek@redhat.com>
Date:   Mon Aug 8 17:45:28 2022 -0400

    c++: Implement -Wself-move warning [PR81159]

    About 5 years ago we got a request to implement -Wself-move, which
    warns about useless moves like this:

      int x;
      x = std::move (x);

    This patch implements that warning.

            PR c++/81159

    gcc/c-family/ChangeLog:

            * c.opt (Wself-move): New option.

    gcc/cp/ChangeLog:

            * typeck.cc (maybe_warn_self_move): New.
            (cp_build_modify_expr): Call maybe_warn_self_move.

    gcc/ChangeLog:

            * doc/invoke.texi: Document -Wself-move.

    gcc/testsuite/ChangeLog:

            * g++.dg/warn/Wself-move1.C: New test.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug c++/81159] New warning idea: -Wself-move
       [not found] <bug-81159-4@http.gcc.gnu.org/bugzilla/>
  2022-08-09 18:04 ` [Bug c++/81159] New warning idea: -Wself-move mpolacek at gcc dot gnu.org
  2022-08-26 18:02 ` cvs-commit at gcc dot gnu.org
@ 2022-08-26 18:03 ` mpolacek at gcc dot gnu.org
  2022-08-26 18:05 ` simon.marchi at polymtl dot ca
                   ` (2 subsequent siblings)
  5 siblings, 0 replies; 6+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2022-08-26 18:03 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81159

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED

--- Comment #10 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Implemented in GCC 13.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug c++/81159] New warning idea: -Wself-move
       [not found] <bug-81159-4@http.gcc.gnu.org/bugzilla/>
                   ` (2 preceding siblings ...)
  2022-08-26 18:03 ` mpolacek at gcc dot gnu.org
@ 2022-08-26 18:05 ` simon.marchi at polymtl dot ca
  2022-10-01  8:20 ` jbglaw@lug-owl.de
  2022-11-28 22:40 ` pinskia at gcc dot gnu.org
  5 siblings, 0 replies; 6+ messages in thread
From: simon.marchi at polymtl dot ca @ 2022-08-26 18:05 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81159

--- Comment #11 from Simon Marchi <simon.marchi at polymtl dot ca> ---
Awesome, thanks!

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug c++/81159] New warning idea: -Wself-move
       [not found] <bug-81159-4@http.gcc.gnu.org/bugzilla/>
                   ` (3 preceding siblings ...)
  2022-08-26 18:05 ` simon.marchi at polymtl dot ca
@ 2022-10-01  8:20 ` jbglaw@lug-owl.de
  2022-11-28 22:40 ` pinskia at gcc dot gnu.org
  5 siblings, 0 replies; 6+ messages in thread
From: jbglaw@lug-owl.de @ 2022-10-01  8:20 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81159

Jan-Benedict Glaw <jbglaw@lug-owl.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jbglaw@lug-owl.de

--- Comment #12 from Jan-Benedict Glaw <jbglaw@lug-owl.de> ---
Just ftr: Building GDB with a recent GCC now breaks since GDB is testing
-Wself-move in its unittests, but only covers the warning in case of clang.
Found by my automated builders. I proposed a patch to fix that.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug c++/81159] New warning idea: -Wself-move
       [not found] <bug-81159-4@http.gcc.gnu.org/bugzilla/>
                   ` (4 preceding siblings ...)
  2022-10-01  8:20 ` jbglaw@lug-owl.de
@ 2022-11-28 22:40 ` pinskia at gcc dot gnu.org
  5 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-11-28 22:40 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81159

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |13.0

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2022-11-28 22:40 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
     [not found] <bug-81159-4@http.gcc.gnu.org/bugzilla/>
2022-08-09 18:04 ` [Bug c++/81159] New warning idea: -Wself-move mpolacek at gcc dot gnu.org
2022-08-26 18:02 ` cvs-commit at gcc dot gnu.org
2022-08-26 18:03 ` mpolacek at gcc dot gnu.org
2022-08-26 18:05 ` simon.marchi at polymtl dot ca
2022-10-01  8:20 ` jbglaw@lug-owl.de
2022-11-28 22:40 ` pinskia at gcc dot gnu.org

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).