From patchwork Fri Jun 21 13:01:31 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 253210 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id B88C72C0303 for ; Fri, 21 Jun 2013 23:05:11 +1000 (EST) Received: from localhost ([::1]:43394 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uq11Z-0007z9-Ie for incoming@patchwork.ozlabs.org; Fri, 21 Jun 2013 09:05:09 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54795) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uq11I-0007uh-9I for qemu-devel@nongnu.org; Fri, 21 Jun 2013 09:04:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Uq0y5-0006Kt-R0 for qemu-devel@nongnu.org; Fri, 21 Jun 2013 09:01:48 -0400 Received: from 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.1.0.0.b.8.0.1.0.0.2.ip6.arpa ([2001:8b0:1d0::1]:58034 helo=mnementh.archaic.org.uk) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uq0y5-0006Jk-J1; Fri, 21 Jun 2013 09:01:33 -0400 Received: from pm215 by mnementh.archaic.org.uk with local (Exim 4.80) (envelope-from ) id 1Uq0y3-00076v-BP; Fri, 21 Jun 2013 14:01:31 +0100 From: Peter Maydell To: qemu-devel@nongnu.org Date: Fri, 21 Jun 2013 14:01:31 +0100 Message-Id: <1371819691-27308-1-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 1.7.10.4 X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:8b0:1d0::1 Cc: qemu-trivial@nongnu.org, Richard Henderson , patches@linaro.org Subject: [Qemu-devel] [PATCH] configure: Add signed*signed check to [u]int128_t test X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org clang 3.8 with -fsanitize=undefined will fail to link code containing an int128_t * int128_t multiply (http://llvm.org/bugs/show_bug.cgi?id=16404) so add this to our configure test for whether [u]int128_t are usable. Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson --- configure | 1 + 1 file changed, 1 insertion(+) diff --git a/configure b/configure index ad32f87..6465e05 100755 --- a/configure +++ b/configure @@ -3329,6 +3329,7 @@ __uint128_t b; int main (void) { a = a + b; b = a * b; + a = a * a; return 0; } EOF