From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 597983858404; Sat, 9 Oct 2021 22:25:11 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 597983858404 From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/102622] [12 Regression] Wrong code with -O3 for skylake-avx512 and icelake-server by r12-3903 Date: Sat, 09 Oct 2021 22:25:11 +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: pinskia at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: pinskia 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: Sat, 09 Oct 2021 22:25:11 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102622 --- Comment #16 from Andrew Pinski --- Here is a testcase without avx-512f usage: struct f{signed t:1;}; int g(struct f *a, int t) __attribute__((noipa)); int g(struct f *a, int t) { if (t) a->t =3D -1; else a->t =3D 0; int t1 =3D a->t; if (t1) return 1; return t1; } int main(void) { struct f a; if (!g(&a, 1)) __builtin_abort(); return 0; }=