[Bug target/91598] [9 regression] 60% speed drop on neon intrinsic loop

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91598

--- Comment #14 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Maxim Kuvyrkov <mkuvyr...@gcc.gnu.org>:

https://gcc.gnu.org/g:6d527883072ce96a33169036fca7740172223b52

commit r12-2946-g6d527883072ce96a33169036fca7740172223b52
Author: Maxim Kuvyrkov <maxim.kuvyr...@linaro.org>
Date:   Thu Aug 29 15:21:36 2019 +0000

    Improve autoprefetcher heuristic (partly fix regression in PR91598)

            PR rtl-optimization/91598
            * haifa-sched.c (autopref_rank_for_schedule): Prioritize
"irrelevant"
            insns after memory reads and before memory writes.