From mboxrd@z Thu Jan 1 00:00:00 1970 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 A3251C433EF for ; Tue, 31 May 2022 18:40:08 +0000 (UTC) Received: from localhost ([::1]:40116 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nw6mi-00022p-9r for qemu-devel@archiver.kernel.org; Tue, 31 May 2022 14:40:06 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46730) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nw6iR-0007jG-Kt; Tue, 31 May 2022 14:35:39 -0400 Received: from mail-pg1-x52c.google.com ([2607:f8b0:4864:20::52c]:42869) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nw6iO-0008Uq-Bc; Tue, 31 May 2022 14:35:39 -0400 Received: by mail-pg1-x52c.google.com with SMTP id d129so13585284pgc.9; Tue, 31 May 2022 11:35:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=af7lqGtYARSp3nCBiYdoAnbEGuLpUQ6yE0duFC4iDu4=; b=CMe9hosCtiqXUkAtVUVOLXl9EBI8S4Jghnef5/dG4x2UBrneDj9FJzmWMFuTy0uL65 Z9DqLX0P5aeN7loVrFKgnvT5eDuW82JSXXaYV56KhU/7OjdqbmdaTbaMZpar0MY9hrdb Xvq9y+zMhz/p6KSJRuiYuACVUe4WmZYhxGMUpdNaKgRKKwXf+JBzgNwSlxMH8gaLQYeK FdQG7Vmsmm7XEc1wyFH/4FzPHQ0Qo58XfjmFIbfIv+VizHXFK8+E+w+D9NBatnR+XYMS U1p0bj4oWuel2Dhih7LPgVl+CaUBipcPLQ8+nWw80LUQWI4xuvNu3C15yS5jaBqWELkZ NEmQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=af7lqGtYARSp3nCBiYdoAnbEGuLpUQ6yE0duFC4iDu4=; b=sl+gHvSiWSfzZaM39lp1OAuyjo4ckuRjpWYP6e3ktspko2Ds9mAEQISi27oGVfMogS JukY1GEVQuSngT1yU44DP98OXFgdIAaIdAWnL82i6OKtb06yJy1pYTjaERYVxQ3GA9Cw I/px97tre3LgnQeaCNpREyd8Nyvqt9OQhqZyduK77O9C9R0sQuw6lipLnDOSKPnZpzye wi1SKCO9JYrXgwLIbE0jo3ISBjQsYhJusuSP8UTe8UelVUbbjcMP+2jOzkdirQ3vy+lF v/6px0c1uVRoKqs6FM5BvKNpEMigTxaCQOo71SEGHrFGWd9u/ZpB0EdeYjBarc+jizc+ fXkw== X-Gm-Message-State: AOAM531EiLtA8ZWSJ7XUAzmgMWJAd5OKhYvZ7U61V02UNvY4BVQsDke5 MNFpqfJzyIlJiSoTtRlyGp1Mb7k2YnJNMFIg X-Google-Smtp-Source: ABdhPJyHWVrbfOE8n7sX3TViAq6DWqHRZ9D8amEoaSTqGEjrD5ALmci95Uz8NMEiuRwLVVYIvDpmTw== X-Received: by 2002:a65:5688:0:b0:3c2:1015:988e with SMTP id v8-20020a655688000000b003c21015988emr53862686pgs.280.1654022134085; Tue, 31 May 2022 11:35:34 -0700 (PDT) Received: from localhost.localdomain ([2409:4040:e14:de30:918d:3d12:382f:45df]) by smtp.gmail.com with ESMTPSA id fh6-20020a17090b034600b001cd4989fec6sm2301749pjb.18.2022.05.31.11.35.30 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 31 May 2022 11:35:33 -0700 (PDT) From: Gautam Agrawal To: qemu-devel@nongnu.org Cc: qemu-s390x@nongnu.org, thuth@redhat.com, cohuck@redhat.com, david@redhat.com, richard.henderson@linaro.org, gautamnagrawal@gmail.com Subject: [PATCH v2] tests/tcg/s390x: Test overflow conditions Date: Wed, 1 Jun 2022 00:05:24 +0530 Message-Id: <20220531183524.40948-1-gautamnagrawal@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::52c; envelope-from=gautamnagrawal@gmail.com; helo=mail-pg1-x52c.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, 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" 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 --- Changes since v1: - Corrected the "long" data type to "long long" - Changed local variable name in overflow function to "res" tests/tcg/s390x/Makefile.target | 1 + tests/tcg/s390x/overflow.c | 58 +++++++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+) create mode 100644 tests/tcg/s390x/overflow.c diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target index 3124172736..7f86de85b9 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -16,6 +16,7 @@ TESTS+=shift TESTS+=trap TESTS+=signals-s390x TESTS+=branch-relative-long +TESTS+=overflow VECTOR_TESTS=vxeh2_vs VECTOR_TESTS+=vxeh2_vcvt diff --git a/tests/tcg/s390x/overflow.c b/tests/tcg/s390x/overflow.c new file mode 100644 index 0000000000..1c59c2cb70 --- /dev/null +++ b/tests/tcg/s390x/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; +} -- 2.34.1