[Bug tree-optimization/92554] [10 Regression] ICE in vect_create_epilog_for_reduction, at tree-vect-loop.c:4325

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92554

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Nov 19 07:33:58 2019
New Revision: 278431

URL: https://gcc.gnu.org/viewcvs?rev=278431&root=gcc&view=rev
Log:
2019-11-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/92554
        * tree-vect-loop.c (vect_create_epilog_for_reduction): Look
        for the actual condition stmt and deal with sign-changes.

        * gcc.dg/vect/pr92554.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr92554.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c