From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 0974A3858D3C; Mon, 27 Dec 2021 09:44:59 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0974A3858D3C From: "georgii.shagov@be-tse.de" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/103843] Direct call to Desctructor is optimized out Date: Mon, 27 Dec 2021 09:44:58 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Version: 10.2.1 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: georgii.shagov@be-tse.de X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: FIXED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: resolution 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: Mon, 27 Dec 2021 09:44:59 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103843 Georgii.Shagov changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|INVALID |FIXED --- Comment #3 from Georgii.Shagov --- (In reply to Andrew Pinski from comment #2) > This is undefined code. The object is officially not live after you call = the > deconstructor so GCC is able to remove the store from the deconstructor as > being dead. I appreciate your reply. But this is confusing. The object was NOT released (de-allocated). In essence Destructor is just a function. Why the content of the class had been re-initialized? IMU: there should be not such obvious difference between optimized and non-optimized code thnx in advance.=