[Bug tree-optimization/98064] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 since r11-4921-g86cca5cc14602814

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98064

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>:

https://gcc.gnu.org/g:ebbe3f29518854c36574adbd4fa82fd56fa64056

commit r11-5542-gebbe3f29518854c36574adbd4fa82fd56fa64056
Author: Richard Biener <rguent...@suse.de>
Date:   Mon Nov 30 13:39:59 2020 +0100

    tree-optimization/98064 - fix BB SLP live lane extract wrt LC SSA

    This avoids breaking LC SSA when SLP codegen pulled an out-of-loop
    def into a loop when merging with in-loop defs for an external def.

    2020-11-30  Richard Biener  <rguent...@suse.de>

            PR tree-optimization/98064
            * tree-vect-loop.c (vectorizable_live_operation): Avoid
            breaking LC SSA for BB vectorization.

            * g++.dg/vect/pr98064.cc: New testcase.