https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80635
--- Comment #32 from Pedro Alves <palves at redhat dot com> --- Right, the potentially-sensitive aspect is what I mean to stress here. Usually maybe-uninit warnings point to false positives involving scalars, and initializing them is practically free. But here the size of T may be significant, which could lead to e.g., calling memset in loops.