[Bug tree-optimization/87889] [9 Regression] CPU2000 177.mesa failed to build

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87889

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Nov  6 10:23:30 2018
New Revision: 265833

URL: https://gcc.gnu.org/viewcvs?rev=265833&root=gcc&view=rev
Log:
2018-11-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/87889
        * tree-vect-loop-manip.c (slpeel_duplicate_current_defs_from_edges):
        Do nothing if old and new arg are the same

        * gcc.dg/pr87894.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/pr87894.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop-manip.c