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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109875

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tobias Burnus <burnus@gcc.gnu.org>:

https://gcc.gnu.org/g:ad0f80d945cc36fbb60fd1e04d90681d4302de8b

commit r14-1026-gad0f80d945cc36fbb60fd1e04d90681d4302de8b
Author: Tobias Burnus <tobias@codesourcery.com>
Date:   Sun May 21 20:36:19 2023 +0200

    libgomp: Honor OpenMP's nteams-var ICV as upper limit on num teams
[PR109875]

    The nteams-var ICV exists per device and can be set either via the rout=
ine
    omp_set_num_teams or as environment variable (OMP_NUM_TEAMS with option=
al
    _ALL/_DEV/_DEV_<num> suffix); it is default-initialized to zero. The nu=
mber
    of teams created is described under the num_teams clause. If the clause=
 is
    absent, the number of teams is implementation defined but at least
    one team must exist and, if nteams-var is positive, at most nteams-var
    teams may exist.

    The latter condition was not honored in a target region before this
    commit, such that too many teams were created.

    Already before this commit, both the num_teams([lower:]upper) clause
    (on the host and in target regions) and, only on the host, the nteams-v=
ar
    ICV were honored. And as only one teams is created for host fallback,
    unless the clause specifies otherwise, the nteams-var ICV was and is
    effectively honored.

    libgomp/ChangeLog:

            PR libgomp/109875
            * config/gcn/target.c (GOMP_teams4): Honor nteams-var ICV.
            * config/nvptx/target.c (GOMP_teams4): Likewise.
            * testsuite/libgomp.c-c++-common/teams-nteams-icv-1.c: New test.
            * testsuite/libgomp.c-c++-common/teams-nteams-icv-2.c: New test.
            * testsuite/libgomp.c-c++-common/teams-nteams-icv-3.c: New test.
            * testsuite/libgomp.c-c++-common/teams-nteams-icv-4.c: New test=
.=