https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116713
--- Comment #9 from Oleg Endo <olegendo at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #8) > See > https://gcc.gnu.org/legacy-ml/gcc-patches/2009-05/msg01233.html > and > https://gcc.gnu.org/legacy-ml/gcc-patches/2009-09/msg00130.html Nice find! Yeah, same problem, but different solution. I think the patch in attachment 59210 is better, as in more robust, though. It places the barrier much earlier. sched2 runs quite late and there are many places where a prefetch hypothetically might get reordered before sched2. IMO.
