[Bug target/110727] [14 Regression] gcc.target/aarch64/sve/aarch64-sve.exp has two new failures since commit 061f74c0673

["cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110727

--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jan Hubicka <hubicka@gcc.gnu.org>:

https://gcc.gnu.org/g:a31ef26b056d0c4f0a9f08b6eb81456ea257298e

commit r14-2716-ga31ef26b056d0c4f0a9f08b6eb81456ea257298e
Author: Jan Hubicka <jh@suse.cz>
Date:   Fri Jul 21 19:38:26 2023 +0200

    Avoid scaling flat loop profiles of vectorized loops

    As discussed, when vectorizing loop with static profile, it is not always
good idea
    to divide the header frequency by vectorization factor because the profile
may
    not realistically represent the expected number of iterations.  Since in
such cases
    we default to relatively low iteration counts (based on average for
spec2k17), this
    will make vectorized loop body look cold.

    This patch makes vectorizer to look for flat profiles and only possibly
reduce the
    profile by known upper bound on iteration counts.

    gcc/ChangeLog:

            PR target/110727
            * tree-vect-loop.cc (scale_profile_for_vect_loop): Avoid scaling
flat
            profiles by vectorization factor.
            (vect_transform_loop): Check for flat profiles.