[Bug target/91982] gcc.target/aarch64/sve/clastb_*.c tests failing with segfault

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91982

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Oct  4 09:18:26 2019
New Revision: 276566

URL: https://gcc.gnu.org/viewcvs?rev=276566&root=gcc&view=rev
Log:
2019-10-04  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/91982
        * tree-vect-loop.c (vectorizable_live_operation): Also guard
        against EXTRACT_LAST_REDUCTION.
        * tree-vect-stmts.c (vect_transform_stmt): Likewise.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-vect-loop.c
    trunk/gcc/tree-vect-stmts.c