[Bug tree-optimization/81303] [8 Regression] 410.bwaves regression caused by r249919

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81303

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Jul 21 11:32:39 2017
New Revision: 250424

URL: https://gcc.gnu.org/viewcvs?rev=250424&root=gcc&view=rev
Log:
2017-07-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81303
        * tree-vect-data-refs.c (vect_get_peeling_costs_all_drs): Pass
        in datarefs vector.  Allow NULL dr0 for no peeling cost estimate.
        (vect_peeling_hash_get_lowest_cost): Adjust.
        (vect_enhance_data_refs_alignment): Likewise.  Use
        vect_get_peeling_costs_all_drs to compute the penalty for no
        peeling to match up costs.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-vect-data-refs.c