[Bug tree-optimization/68806] [6 Regression] internal compiler error: Segmentation fault

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68806

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Dec 10 09:00:58 2015
New Revision: 231493

URL: https://gcc.gnu.org/viewcvs?rev=231493&root=gcc&view=rev
Log:
2015-12-10  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/68806
        * tree-vect-loop.c (vect_analyze_loop_2): Properly detect
        reduction chains and ignore SLP reductions.

        * gcc.dg/torture/pr68806.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr68806.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c