From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id E87B139450F2; Fri, 27 Mar 2020 09:21:24 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E87B139450F2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1585300884; bh=KcJssDvD14r/2+TEJN/WtD/t6EI7u57Hqhv5psvaHdM=; h=From:To:Subject:Date:In-Reply-To:References:From; b=cPr6Aut1uqUzRmZJT+wpMg3hBG9apZDY/UEiKR3F1SgqKt1DRybx5pOIXX3tiOR6L Rz9JJVI2UkxyNSCj/Ql0Rd7DO26MdBDAMHdeQJ5MSr014gI1Xj4RvNIBCtwSAkQPmp HwuL8eq6lb1pRlFiAha4bFMFrsk8tvn9tQlHmSaM= From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/94343] [10 Regression] invalid AVX512VL vpternlogd instruction emitted for -march=knl Date: Fri, 27 Mar 2020 09:21:24 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 10.0 X-Bugzilla-Keywords: missed-optimization, 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: P1 X-Bugzilla-Assigned-To: jakub at gcc dot gnu.org X-Bugzilla-Target-Milestone: 10.0 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: Fri, 27 Mar 2020 09:21:25 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94343 --- Comment #17 from Jakub Jelinek --- The patch I've posted - https://gcc.gnu.org/pipermail/gcc-patches/2020-March/542774.html - solves i= t by disabling the problematic masked cases in the condition. Or we could just disable the masking on the insn altogether, the expander will not need thos= e.=