From owner-svn-src-head@freebsd.org Sat Nov 16 16:27:32 2019 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 4B1961A88C0; Sat, 16 Nov 2019 16:27:32 +0000 (UTC) (envelope-from jhibbits@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 47Fgc41796z4nYb; Sat, 16 Nov 2019 16:27:32 +0000 (UTC) (envelope-from jhibbits@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 0955043C3; Sat, 16 Nov 2019 16:27:32 +0000 (UTC) (envelope-from jhibbits@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id xAGGRVXv070666; Sat, 16 Nov 2019 16:27:31 GMT (envelope-from jhibbits@FreeBSD.org) Received: (from jhibbits@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id xAGGRVMf070665; Sat, 16 Nov 2019 16:27:31 GMT (envelope-from jhibbits@FreeBSD.org) Message-Id: <201911161627.xAGGRVMf070665@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: jhibbits set sender to jhibbits@FreeBSD.org using -f From: Justin Hibbits Date: Sat, 16 Nov 2019 16:27:31 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r354775 - head/sys/powerpc/booke X-SVN-Group: head X-SVN-Commit-Author: jhibbits X-SVN-Commit-Paths: head/sys/powerpc/booke X-SVN-Commit-Revision: 354775 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 16 Nov 2019 16:27:32 -0000 Author: jhibbits Date: Sat Nov 16 16:27:31 2019 New Revision: 354775 URL: https://svnweb.freebsd.org/changeset/base/354775 Log: powerpcspe: Mark asm statement in spe_save_reg_high as clobbering memory Modern gcc errors that "'vec[0]' is used uninitialized in this function" without us telling it that vec is clobbered. Neither clang nor gcc 4.2.1 error on the existing construct. Submitted by: bdragon Modified: head/sys/powerpc/booke/spe.c Modified: head/sys/powerpc/booke/spe.c ============================================================================== --- head/sys/powerpc/booke/spe.c Sat Nov 16 12:00:22 2019 (r354774) +++ head/sys/powerpc/booke/spe.c Sat Nov 16 16:27:31 2019 (r354775) @@ -426,7 +426,7 @@ spe_save_reg_high(int reg) { uint32_t vec[2]; #define EVSTDW(n) case n: __asm __volatile ("evstdw %1,0(%0)" \ - :: "b"(vec), "n"(n)); break; + :: "b"(vec), "n"(n) : "memory"); break; switch (reg) { EVSTDW(0); EVSTDW(1); EVSTDW(2); EVSTDW(3); EVSTDW(4); EVSTDW(5); EVSTDW(6); EVSTDW(7);