[Bug tree-optimization/103816] [12 Regression] ICE: in vect_build_slp_tree_2, at tree-vect-slp.c:1748 since r12-1551-g3dfa4fe9f1a089b2

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103816

--- 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:1021b72bf6542f3c08e5404b65063216ee1b06f7

commit r12-6222-g1021b72bf6542f3c08e5404b65063216ee1b06f7
Author: Richard Biener <rguent...@suse.de>
Date:   Wed Jan 5 10:14:52 2022 +0100

    tree-optimization/103816 - detect offset overflow in SLP group analysis

    This makes sure to detect overflow when computing DR_GROUP_GAP
    and DR_GROUP_SIZE more thoroughly so artificial testcases like the
    added one are not fooling the existing check.

    2022-01-05  Richard Biener  <rguent...@suse.de>

            PR tree-optimization/103816
            * tree-vect-data-refs.c (vect_analyze_group_access_1): Also
            check DR_GROUP_GAP compute for overflow and representability.

            * gcc.dg/torture/pr103816.c: New testcase.