From owner-freebsd-toolchain@freebsd.org Mon Apr 23 23:09:08 2018 Return-Path: Delivered-To: freebsd-toolchain@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B7BE0FADA31 for ; Mon, 23 Apr 2018 23:09:08 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 3D748805EC for ; Mon, 23 Apr 2018 23:09:08 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id F1123FADA2D; Mon, 23 Apr 2018 23:09:07 +0000 (UTC) Delivered-To: toolchain@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id DD4C9FADA2C for ; Mon, 23 Apr 2018 23:09:07 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 72CDC805E4 for ; Mon, 23 Apr 2018 23:09:07 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 92FFD1079A for ; Mon, 23 Apr 2018 23:09:06 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w3NN96iJ035132 for ; Mon, 23 Apr 2018 23:09:06 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from bugzilla@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w3NN96Qn035131 for toolchain@FreeBSD.org; Mon, 23 Apr 2018 23:09:06 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: bugzilla set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: toolchain@FreeBSD.org Subject: [Bug 225330] clang bug can incorrectly enable or disable interrupts on amd64 Date: Mon, 23 Apr 2018 23:09:05 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: commit-hook@freebsd.org X-Bugzilla-Status: In Progress X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: dim@FreeBSD.org X-Bugzilla-Flags: mfc-stable11+ 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: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-toolchain@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Maintenance of FreeBSD's integrated toolchain List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Apr 2018 23:09:08 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D225330 --- Comment #8 from commit-hook@freebsd.org --- A commit references this bug: Author: dim Date: Mon Apr 23 23:07:58 UTC 2018 New revision: 332898 URL: https://svnweb.freebsd.org/changeset/base/332898 Log: Pull in r329771 from upstream llvm trunk (by Craig Topper): [X86] In X86FlagsCopyLowering, when rewriting a memory setcc we need to emit an explicit MOV8mr instruction. Previously the code only knew how to handle setcc to a register. This should fix a crash in the chromium build. This fixes various assertion failures while building ports targeting i386: * www/firefox: isReg() && "This is not a register operand!" * www/iridium, www/qt5-webengine: (I.atEnd() || std::next(I) =3D=3D def_instr_end()) && "getVRegDef assumes a single definition or no definition" * devel/powerpc64-gcc: FromReg !=3D ToReg && "Cannot replace a reg with itself" Reported by: jbeich PR: 225330, 227686, 227698, 227699 MFC after: 1 week X-MFC-With: r332833 Changes: head/contrib/llvm/lib/Target/X86/X86FlagsCopyLowering.cpp --=20 You are receiving this mail because: You are on the CC list for the bug.=