From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id C83A8385843F; Wed, 27 Oct 2021 21:42:37 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C83A8385843F From: "hjl.tools at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/102952] New code-gen options for retpolines and straight line speculation Date: Wed, 27 Oct 2021 21:42:37 +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: 12.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: hjl.tools at gmail dot com X-Bugzilla-Status: WAITING X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: hjl.tools at gmail dot com X-Bugzilla-Target-Milestone: --- 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, 27 Oct 2021 21:42:37 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102952 --- Comment #12 from H.J. Lu --- (In reply to peterz from comment #9) > Created attachment 51683 [details] > kernel patch to test -mharden-sls=3Dall >=20 > $ make O=3Ddefconfig CC=3Dgcc-12.0.0 arch/x86/entry/common.o > ... > arch/x86/entry/common.o: warning: objtool: do_SYSENTER_32()+0x1b: > unreachable instruction Please try the v2 patch.=