https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70898
--- Comment #4 from Marc Glisse <glisse at gcc dot gnu.org> --- (In reply to Jonathan Wakely from comment #3) > This is being tracked as PR 51965 PR 51965 seems to be about extra copies of the values, while this one is more about extra copies of compare objects (then there are also extra copies of iterators).
