From patchwork Fri Jun 3 06:58:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 12868705 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AF297C433EF for ; Fri, 3 Jun 2022 07:09:40 +0000 (UTC) Received: from localhost ([::1]:42792 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nx1RD-0004a5-Jy for qemu-devel@archiver.kernel.org; Fri, 03 Jun 2022 03:09:39 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34084) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nx1HJ-0005f6-0A for qemu-devel@nongnu.org; Fri, 03 Jun 2022 02:59:26 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:42846) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nx1HG-0003JE-HH for qemu-devel@nongnu.org; Fri, 03 Jun 2022 02:59:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1654239562; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=WiITbjjjR+UhW51YU4h8vWx72oaJ+6kKGI9+cL7Q9VA=; b=H9bfV7Et8Kp4Vr1BaPQszSfuxJXjyrCy8VFd2BxUSZnJtRkGeNEgnJUbRkZTySqTkjLxVI gDwrxPorh8KdXDgu3MWXrimS/ulUqew8pvncLpU6hwRyIgKZgMdH7xDq604Je71Mn5nekJ brsEK2aia9wUkvt0IF9todTveItaPaE= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-93-XM_BCAW6OIalliKhNKxbJA-1; Fri, 03 Jun 2022 02:59:20 -0400 X-MC-Unique: XM_BCAW6OIalliKhNKxbJA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 44245810BCF; Fri, 3 Jun 2022 06:59:20 +0000 (UTC) Received: from thuth.com (unknown [10.39.192.172]) by smtp.corp.redhat.com (Postfix) with ESMTP id BDE8E2166B26; Fri, 3 Jun 2022 06:59:18 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org, Richard Henderson Cc: qemu-s390x@nongnu.org, Gautam Agrawal Subject: [PULL 05/12] tests/tcg: Test overflow conditions Date: Fri, 3 Jun 2022 08:58:58 +0200 Message-Id: <20220603065905.23805-6-thuth@redhat.com> In-Reply-To: <20220603065905.23805-1-thuth@redhat.com> References: <20220603065905.23805-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 Received-SPF: pass client-ip=170.10.129.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Gautam Agrawal Add a test to check for overflow conditions in s390x. This patch is based on the following patches : * https://git.qemu.org/?p=qemu.git;a=commitdiff;h=5a2e67a691501 * https://git.qemu.org/?p=qemu.git;a=commitdiff;h=fc6e0d0f2db51 Signed-off-by: Gautam Agrawal Message-Id: <20220531183524.40948-1-gautamnagrawal@gmail.com> [thuth: Move overflow.c to tests/tcg/multiarch/ to make it generic] Signed-off-by: Thomas Huth --- tests/tcg/multiarch/overflow.c | 58 ++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 tests/tcg/multiarch/overflow.c diff --git a/tests/tcg/multiarch/overflow.c b/tests/tcg/multiarch/overflow.c new file mode 100644 index 0000000000..1c59c2cb70 --- /dev/null +++ b/tests/tcg/multiarch/overflow.c @@ -0,0 +1,58 @@ +#include + +int overflow_add_32(int x, int y) +{ + int res; + return __builtin_add_overflow(x, y, &res); +} + +int overflow_add_64(long long x, long long y) +{ + long long res; + return __builtin_add_overflow(x, y, &res); +} + +int overflow_sub_32(int x, int y) +{ + int res; + return __builtin_sub_overflow(x, y, &res); +} + +int overflow_sub_64(long long x, long long y) +{ + long long res; + return __builtin_sub_overflow(x, y, &res); +} + +int a1_add = -2147483648; +int b1_add = -2147483648; +long long a2_add = -9223372036854775808ULL; +long long b2_add = -9223372036854775808ULL; + +int a1_sub; +int b1_sub = -2147483648; +long long a2_sub = 0L; +long long b2_sub = -9223372036854775808ULL; + +int main() +{ + int ret = 0; + + if (!overflow_add_32(a1_add, b1_add)) { + fprintf(stderr, "data overflow while adding 32 bits\n"); + ret = 1; + } + if (!overflow_add_64(a2_add, b2_add)) { + fprintf(stderr, "data overflow while adding 64 bits\n"); + ret = 1; + } + if (!overflow_sub_32(a1_sub, b1_sub)) { + fprintf(stderr, "data overflow while subtracting 32 bits\n"); + ret = 1; + } + if (!overflow_sub_64(a2_sub, b2_sub)) { + fprintf(stderr, "data overflow while subtracting 64 bits\n"); + ret = 1; + } + return ret; +}