[Bug tree-optimization/108398] tree-object-size trips up with pointer arithmetic if an intermediate result is an invalid pointer

[yann at droneaud dot fr via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108398

--- Comment #10 from Yann Droneaud <yann at droneaud dot fr> ---
(In reply to Jakub Jelinek from comment #8)
> -fsanitize=undefined with no diagnostics doesn't mean code is UB free.

This is a pity, it would have help users do diagnose the issue in their code.