[Bug tree-optimization/103361] [9/10 Regression] ICE in adjust_unroll_factor, at gimple-loop-jam.c:407 since r12-3677-gf92901a508305f29

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103361

--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Richard Biener
<rgue...@gcc.gnu.org>:

https://gcc.gnu.org/g:4ed8728e2646897c98826cf43be2e4682d04fc2c

commit r10-10548-g4ed8728e2646897c98826cf43be2e4682d04fc2c
Author: Richard Biener <rguent...@suse.de>
Date:   Tue Nov 23 10:11:41 2021 +0100

    tree-optimization/103361 - fix unroll-and-jam direction vector handling

    This properly uses lambda_int instead of truncating the direction
    vector to int which leads to false unexpected negative values.

    2021-11-23  Richard Biener  <rguent...@suse.de>

            PR tree-optimization/103361
            * gimple-loop-jam.c (adjust_unroll_factor): Use lambda_int
            for the dependence distance.
            * tree-data-ref.c (print_lambda_vector): Properly print a
lambda_int.

            * g++.dg/torture/pr103361.C: New testcase.

    (cherry picked from commit 6cd440670078af89d82cbb67e01a5ecec8eec238)