https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66339
--- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> --- Note the pool was made dynamic (and effectively larger) exactly for a QOI issue... [the dynamic nature is to make its size controllable by the environment, sth that didn't materialize yet] The difficulty with freeing is that it is necessary until the dynamic loader can get rid of the C++ runtime. There isn't a way to enforce releasing at that point (apart from making it static storage).