[Bug tree-optimization/92205] [10 Regression] ICE in vect_get_vec_def_for_stmt_copy, at tree-vect-stmts.c:1688 since r277322

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92205

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Oct 24 12:11:27 2019
New Revision: 277375

URL: https://gcc.gnu.org/viewcvs?rev=277375&root=gcc&view=rev
Log:
2019-10-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/92205
        * tree-vect-loop.c (vectorizable_reduction): Restrict
        search for alternate vectype_in to lane-reducing patterns
        we support.

        * gcc.dg/vect/pr92205.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr92205.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c