https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92840
--- Comment #5 from Thomas Schwinge <tschwinge at gcc dot gnu.org> --- As determined during patch review, there's still an unresolved issue: On 2024-04-16T17:12:17+0800, Chung-Lin Tang <clt...@baylibre.com> wrote: > If we continue to use k->refcount itself as the flag holder of map type, I > guess we will not be able to directly determine whether it is a > structured or dynamic adjustment at that point. Probably need a new field > entirely.