[Bug tree-optimization/111285] [12 Regression] vector ABSU is lowered incorrectly

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111285

--- Comment #12 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Andrew Pinski
<pins...@gcc.gnu.org>:

https://gcc.gnu.org/g:df76d7b05693dc511a114cb6ece2cbc5eef25dea

commit r12-11049-gdf76d7b05693dc511a114cb6ece2cbc5eef25dea
Author: Andrew Pinski <quic_apin...@quicinc.com>
Date:   Sun Oct 27 13:16:22 2024 -0700

    vec-lowering: Fix ABSU lowering [PR111285]

    ABSU_EXPR lowering incorrectly used the resulting type
    for the new expression but in the case of ABSU the resulting
    type is an unsigned type and with ABSU is folded away. The fix
    is to use a signed type for the expression instead.

    Bootstrapped and tested on x86_64-linux-gnu.

            PR middle-end/111285

    gcc/ChangeLog:

            * tree-vect-generic.cc (do_unop): Use a signed type for the
            operand if the operation was ABSU_EXPR.

    gcc/testsuite/ChangeLog:

            * g++.dg/torture/vect-absu-1.C: New test.

    Signed-off-by: Andrew Pinski <quic_apin...@quicinc.com>
    (cherry picked from commit ad0084337e901ddaedd48c14e7a5dad9fc2a093e)