[Bug tree-optimization/82397] [8 Regression] qsort comparator non-negative on sorted output: 1 in vect_analyze_data_ref_accesses

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82397

--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Oct  9 14:13:43 2017
New Revision: 253547

URL: https://gcc.gnu.org/viewcvs?rev=253547&root=gcc&view=rev
Log:
2017-10-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82397
        * tree-data-ref.c (data_ref_compare_tree): Make sure to return
        equality only for semantically equal trees.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-data-ref.c