From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 144E33858D1E; Wed, 10 Aug 2022 18:12:53 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 144E33858D1E From: "dave.anglin at bell dot net" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/106458] [12/13 Regression] glibc's malloc/tst-scratch_buffer.c test is miscompiled with gcc-12 Date: Wed, 10 Aug 2022 18:12:52 +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: 12.1.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: dave.anglin at bell dot net X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 12.2 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: Wed, 10 Aug 2022 18:12:53 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106458 --- Comment #14 from dave.anglin at bell dot net --- On 2022-08-10 1:38 p.m., dave.anglin at bell dot net wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106458 > > --- Comment #13 from dave.anglin at bell dot net --- > On 2022-08-10 9:30 a.m., rguenth at gcc dot gnu.org wrote: >> You could try if -fno-tree-pre reproduces it also before the change. > It doesn't. But the test does not fail after the change with -fno-tree-pre.=