https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102631
--- Comment #1 from Aldy Hernandez <aldyh at gcc dot gnu.org> --- $ ./cc1 team.i -O2 -quiet -Wall /home/aldyh/src/gcc/libgomp/team.c: In function ‘gomp_team_start’: /home/aldyh/src/gcc/libgomp/team.c:315:34: warning: ‘start_data’ may be used uninitialized in this function [-Wmaybe-uninitialized] 315 | struct gomp_thread_start_data *start_data = NULL; | ^~~~~~~~~~