[Bug c/111211] No warning for iterator going out of scope

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111211

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
We diagnose this after unrolling, so the difference is whether we unroll or
not.