https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110369
Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mpolacek at gcc dot gnu.org --- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> --- I don't think it's wrong code: 110369.c:8:9: warning: iteration 2 invokes undefined behavior [-Waggressive-loop-optimizations] 8 | printf("%d", b[e]); | ^~~~~~~~~~~~~~~~~~ 110369.c:7:21: note: within this loop 7 | for (e = 0; e < 5; e++) { | ~~^~~ The behavior changed in r14-338.