[Bug tree-optimization/119293] [15/16 Regression] gcc.dg/vect/vect-121.c fails since r15-6811-g086031c0585985

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119293

--- Comment #11 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Alexandre Oliva <aoliva@gcc.gnu.org>:

https://gcc.gnu.org/g:3f7bdc190f3ef483283e51b5f4ef02401a1ed913

commit r16-6100-g3f7bdc190f3ef483283e51b5f4ef02401a1ed913
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Sat Dec 13 04:12:02 2025 -0300

    [testsuite] xfail vect-121.c on ia32 [PR119293]

    Once fre5 resolves conditional of the guard block for the vectorized
    loop, cfgcleanup removes the edge that bypasses it, adjusting the
    other edge probability, but not the edge's dest's count.  The blocks
    get combined, and their counts are merged, but nothing adjusts the
    counts of the block that lost an incoming edge.

    The incoming counts remain inconsistent from that point on, and get
    reported as "Invalid sum of incoming counts" in the tree dump where
    vect-121.c checks for the absence of this error.

    That was added in response to a fix for a vectorizer profile count
    management problem.  This is a different profile count management
    problem, so it makes sense to silence this failure marking it as
    expected.


    for  gcc/testsuite/ChangeLog

            PR tree-optimization/119293
            * gcc.dg/vect/vect-121.c: XFAIL on ia32.