[Bug rtl-optimization/82396] qsort comparator non-negative on sorted output: 4 in ready_sort_real in haifa scheduler

[wilco at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82396

--- Comment #2 from Wilco <wilco at gcc dot gnu.org> ---
I've got a simple patch that fixes the AArch64 bootstrap failure. This should
fix ARM as well.