[Bug tree-optimization/92581] [10 Regression] condition chains vectorized wrongly

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92581

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Nov 19 14:00:46 2019
New Revision: 278445

URL: https://gcc.gnu.org/viewcvs?rev=278445&root=gcc&view=rev
Log:
2019-11-19  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/92581
        * tree-vect-loop.c (vect_create_epilog_for_reduction): For
        condition reduction chains gather all conditions involved
        for computing the index reduction vector.

        * gcc.dg/vect/vect-cond-reduc-5.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/vect-cond-reduc-5.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c