[Bug tree-optimization/83385] [8 Regression] [graphite] Wrong code w/ -O1 -floop-nest-optimize

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83385

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Dec 12 12:15:38 2017
New Revision: 255579

URL: https://gcc.gnu.org/viewcvs?rev=255579&root=gcc&view=rev
Log:
2017-12-12  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/83385
        * graphite-scop-detection.c (get_order, order): Remove.
        (bb_to_rpo): New global.
        (cmp_pbbs): Adjust.
        (build_scops): Sort pbbs in RPO order.

        * gcc.dg/graphite/pr83385.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/graphite/pr83385.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/graphite-scop-detection.c
    trunk/gcc/testsuite/ChangeLog