From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
 id 743483958C1D; Wed, 25 Nov 2020 18:37:51 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 743483958C1D
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/97936] [11 Regression] 30_threads/latch/3.cc hangs
Date: Wed, 25 Nov 2020 18:37:51 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: libstdc++
X-Bugzilla-Version: 11.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 11.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-97936-4-ZN6DJk3IfP@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-97936-4@http.gcc.gnu.org/bugzilla/>
References: <bug-97936-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Wed, 25 Nov 2020 18:37:51 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97936

--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:

https://gcc.gnu.org/g:f76cad692a62d44ed32d010200bad74f36c73092

commit r11-5383-gf76cad692a62d44ed32d010200bad74f36c73092
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Wed Nov 25 14:39:54 2020 +0000

    libstdc++: Fix testsuite helper functions [PR 97936]

    This fixes a race condition in the util/atomic/wait_notify_util.h header
    used by several tests, which should make the tests work properly.

    libstdc++-v3/ChangeLog:

            PR libstdc++/97936
            * testsuite/29_atomics/atomic/wait_notify/bool.cc: Re-eneable
            test.
            * testsuite/29_atomics/atomic/wait_notify/generic.cc: Likewise.
            * testsuite/29_atomics/atomic/wait_notify/pointers.cc: Likewise.
            * testsuite/29_atomics/atomic_flag/wait_notify/1.cc: Likewise.
            * testsuite/29_atomics/atomic_float/wait_notify.cc: Likewise.
            * testsuite/29_atomics/atomic_integral/wait_notify.cc: Likewise.
            * testsuite/util/atomic/wait_notify_util.h: Fix missed
            notifications by making the new thread wait until the parent
            thread is waiting on the condition variable.=