[Bug tree-optimization/87962] [9 Regression] ICE in vect_get_vec_def_for_operand_1, at tree-vect-stmts.c:1485

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87962

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Nov 13 13:51:34 2018
New Revision: 266071

URL: https://gcc.gnu.org/viewcvs?rev=266071&root=gcc&view=rev
Log:
2018-11-13  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/87962
        * tree-vect-loop.c (vect_is_simple_reduction): More reliably
        detect outer reduction for disqualifying in-loop uses.

        * gcc.dg/pr87962.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/pr87962.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c