From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id C42D03888037; Mon, 12 Jul 2021 12:07:31 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C42D03888037 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/101419] [9/10/11/12 Regression] collapsing memset() calls can break __builtin_object_size() Date: Mon, 12 Jul 2021 12:07:31 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 12.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: jakub at gcc dot gnu.org X-Bugzilla-Target-Milestone: 9.5 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: Mon, 12 Jul 2021 12:07:31 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101419 --- Comment #15 from Jakub Jelinek --- (In reply to Richard Biener from comment #13) > Note usually we still run all property providers but the way you set > the property outside of pass->properties_provided breaks this. Thus > maybe split objsz into two separate passes rather than using the > flag so you can use properties_provided. I wanted to avoid having two separate passes, but if you prefer it, it can = be done. Will be a user visible change in the dumps and for -fdisable-tree-* = etc. (though we do such changes all the time).=