[Bug middle-end/78915] missing -Wuninitialized accessing allocated memory

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78915

Martin Sebor  changed:

   What|Removed |Added

 Resolution|--- |FIXED
   Target Milestone|--- |11.0
  Known to fail||10.2.0, 7.3.0, 8.3.0, 9.2.0
 Status|NEW |RESOLVED

--- Comment #4 from Martin Sebor  ---
Both f1() and f2() have been diagnosed since r11-959 (GCC 11):

$ gcc -O1 -S -Wall pr78915.c
pr78915.c: In function ‘f0’:
pr78915.c:5:3: warning: ‘i’ is used uninitialized [-Wuninitialized]
5 |   ++i;
  |   ^~~
pr78915.c:3:7: note: ‘i’ was declared here
3 |   int i;
  |   ^
pr78915.c: In function ‘f1’:
pr78915.c:14:5: warning: ‘*p’ is used uninitialized [-Wuninitialized]
   14 |   ++*p;
  | ^~
pr78915.c: In function ‘f2’:
pr78915.c:25:5: warning: ‘*p’ may be used uninitialized [-Wmaybe-uninitialized]
   25 |   ++*p;
  | ^~

[Bug middle-end/78915] missing -Wuninitialized accessing allocated memory

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78915

--- Comment #3 from Eric Gallager  ---
(In reply to Manuel López-Ibáñez from comment #2)
> Possibly a dup of PR87209

Or vice versa.

[Bug middle-end/78915] missing -Wuninitialized accessing allocated memory

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78915

Manuel López-Ibáñez  changed:

   What|Removed |Added

 CC||manu at gcc dot gnu.org

--- Comment #2 from Manuel López-Ibáñez  ---
Possibly a dup of PR87209

[Bug middle-end/78915] missing -Wuninitialized accessing allocated memory

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78915

Eric Gallager  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
   Last reconfirmed||2017-08-28
 CC||egallager at gcc dot gnu.org
 Blocks||24639
 Ever confirmed|0   |1

--- Comment #1 from Eric Gallager  ---
Confirmed that only f0 warns.


Referenced Bugs:

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