[Bug tree-optimization/102696] [12 Regression] ICE in vect_build_slp_tree, at tree-vect-slp.c:1551 for skylake-avx512 and icelake-server

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102696

--- Comment #3 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:d1dcaa31453fa080a27938b064e53f02272d4aa1

commit r12-4351-gd1dcaa31453fa080a27938b064e53f02272d4aa1
Author: Richard Biener <rguent...@suse.de>
Date:   Tue Oct 12 13:49:39 2021 +0200

    tree-optimization/102696 - fix SLP discovery for failed BIT_FIELD_REF

    This fixes a forgotten adjustment of matches[] when we fail SLP
    discovery.

    2021-10-12  Richard Biener  <rguent...@suse.de>

            PR tree-optimization/102696
            * tree-vect-slp.c (vect_build_slp_tree_2): Properly mark
            the tree fatally failed when we reject a BIT_FIELD_REF.

            * g++.dg/vect/pr102696.cc: New testcase.