From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id E10B13982431; Fri, 2 Jul 2021 12:00:38 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E10B13982431 From: "general at yhf8377 dot me" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/101274] [11/12 Regression] std::execution::seq has incorrect behaviour under GCC 11.1.0 Date: Fri, 02 Jul 2021 12:00:38 +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: 11.1.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: general at yhf8377 dot me X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: INVALID X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 11.2 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Jul 2021 12:00:39 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101274 --- Comment #5 from yhf8377 --- Thank you Thomas for the detailed information and links to the references. I guess I will need to move this bug report into our own bug tracker. :-) T= his is indeed a bug in our code as we had incorrect assumptions on how `std::reduce()` and `std::execution::seq` work. Thanks again!=