[Bug tree-optimization/84037] [8 Regression] Speed regression of polyhedron benchmark since r256644

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84037

--- Comment #28 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Feb 12 08:54:28 2018
New Revision: 257581

URL: https://gcc.gnu.org/viewcvs?rev=257581&root=gcc&view=rev
Log:
2018-02-12  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/84037
        * tree-vect-slp.c (vect_build_slp_tree_2): Try swapping the
        matched stmts if we cannot swap the non-matched ones.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-vect-slp.c