From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 4EB103857822; Wed, 4 May 2022 11:58:45 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 4EB103857822 From: "jiawei at iscas dot ac.cn" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/102892] [12/13 Regression] Dead Code Elimination Regression at -O3 (trunk vs 11.2.0) Date: Wed, 04 May 2022 11:58:44 +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: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: jiawei at iscas dot ac.cn X-Bugzilla-Status: REOPENED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 12.0 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: Wed, 04 May 2022 11:58:45 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102892 --- Comment #14 from jiawei --- (In reply to palmer from comment #13) > I just posted a patch > that > removes the undefined behavior from this test case, with that it links on > RISC-V. LGTM, it's really help, thanks a lot.=