[Bug tree-optimization/98180] [11 regression] ICE at gcc/toplev.c:327 for gcc.target/powerpc/builtins-revb-runnable.c after r11-5821

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98180

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:e844c04e35ca2fe9ee2f758a720dd37cbe81e7ef

commit r11-5838-ge844c04e35ca2fe9ee2f758a720dd37cbe81e7ef
Author: Richard Biener <rguenther@suse.de>
Date:   Tue Dec 8 09:42:35 2020 +0100

    tree-optimization/98180 - fix BIT_INSERT_EXPR sequence vectorization

    This adds a missing check for the first inserted value.

    2020-12-08  Richard Biener  <rguenther@suse.de>

            PR tree-optimization/98180
            * tree-vect-slp.c (vect_slp_check_for_constructors): Check the
            first inserted value has a def.