public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug middle-end/90043] Turn on -Winit-self by default for -Wuninitialized
       [not found] <bug-90043-4@http.gcc.gnu.org/bugzilla/>
@ 2021-04-13 19:55 ` msebor at gcc dot gnu.org
  2021-04-13 21:27 ` pinskia at gcc dot gnu.org
  2022-01-26 17:48 ` msebor at gcc dot gnu.org
  2 siblings, 0 replies; 3+ messages in thread
From: msebor at gcc dot gnu.org @ 2021-04-13 19:55 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90043

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2019-09-29 00:00:00         |2021-4-13
             Blocks|                            |24639

--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
No progress in GCC 11 (my bad).  I'll see if I can remember for GCC 12.  Below
is a C test case (in C++ the warning is included in -Wall).

$ (set -x && cat pr90043.c && gcc -S -Wall -Wextra -Wpedantic pr90043.c && gcc
-S -Wall -Wextra -Wpedantic -Winit-self pr90043.c)
+ cat pr90043.c
int f (void)
{
  int i = i;
  return i;
}
+ gcc -S -Wall -Wextra -Wpedantic pr90043.c
+ gcc -S -Wall -Wextra -Wpedantic -Winit-self pr90043.c
pr90043.c: In function ‘f’:
pr90043.c:3:7: warning: ‘i’ is used uninitialized [-Wuninitialized]
    3 |   int i = i;
      |       ^
pr90043.c:3:7: note: ‘i’ was declared here
    3 |   int i = i;
      |       ^


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24639
[Bug 24639] [meta-bug] bug to track all Wuninitialized issues

^ permalink raw reply	[flat|nested] 3+ messages in thread

* [Bug middle-end/90043] Turn on -Winit-self by default for -Wuninitialized
       [not found] <bug-90043-4@http.gcc.gnu.org/bugzilla/>
  2021-04-13 19:55 ` [Bug middle-end/90043] Turn on -Winit-self by default for -Wuninitialized msebor at gcc dot gnu.org
@ 2021-04-13 21:27 ` pinskia at gcc dot gnu.org
  2022-01-26 17:48 ` msebor at gcc dot gnu.org
  2 siblings, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-04-13 21:27 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90043

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I remember when I added -Winit-self, it was specifically because that was the
original documented way of disabling uninitialized variables.  I don't remember
if I came up with the option name or it was changed. It was a long time back in
the 4.0 days even.

^ permalink raw reply	[flat|nested] 3+ messages in thread

* [Bug middle-end/90043] Turn on -Winit-self by default for -Wuninitialized
       [not found] <bug-90043-4@http.gcc.gnu.org/bugzilla/>
  2021-04-13 19:55 ` [Bug middle-end/90043] Turn on -Winit-self by default for -Wuninitialized msebor at gcc dot gnu.org
  2021-04-13 21:27 ` pinskia at gcc dot gnu.org
@ 2022-01-26 17:48 ` msebor at gcc dot gnu.org
  2 siblings, 0 replies; 3+ messages in thread
From: msebor at gcc dot gnu.org @ 2022-01-26 17:48 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90043

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|msebor at gcc dot gnu.org          |unassigned at gcc dot gnu.org
             Status|ASSIGNED                    |NEW

--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> ---
I'm not working on this anymore.

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2022-01-26 17:48 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
     [not found] <bug-90043-4@http.gcc.gnu.org/bugzilla/>
2021-04-13 19:55 ` [Bug middle-end/90043] Turn on -Winit-self by default for -Wuninitialized msebor at gcc dot gnu.org
2021-04-13 21:27 ` pinskia at gcc dot gnu.org
2022-01-26 17:48 ` msebor 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).