https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107752
--- Comment #3 from Li Shaohua <shaohua.li at inf dot ethz.ch> --- (In reply to Andrew Pinski from comment #1) > Do you mean the column information rather than offset? Yes, I meant the column information. I don’t know the implementation details of ASAN. But as UBsan can include the column information, I presume it’s also doable in ASAN?