https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85682
--- Comment #2 from Luis Machado <luis.machado at linaro dot org> --- Did it even bootstrap properly? It shouldn't have been built in the first place i guess, due to the signedness error of a particular chunk of code. I did a fresh x86-64 bootstrap with the changes in and those prefetch tests are not executed as part of dg.exp. Running by hand they look sane to me.