[Bug rtl-optimization/82398] [8 Regression] error: qsort comparator non-negative on sorted output: 2 in fill_vec_av_set at gcc/sel-sched.c:3725

[amonakov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82398

--- Comment #5 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
Author: amonakov
Date: Wed Dec 13 16:30:29 2017
New Revision: 255607

URL: https://gcc.gnu.org/viewcvs?rev=255607&root=gcc&view=rev
Log:
sel-sched: fix sel_rank_for_schedule for qsort (PR 82398)

        PR rtl-optimization/82398
        * sel-sched.c (sel_rank_for_schedule): Fix check for zero
        EXPR_USEFULNESS in priority comparison.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/sel-sched.c