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