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bh=WiITbjjjR+UhW51YU4h8vWx72oaJ+6kKGI9+cL7Q9VA=; b=H9bfV7Et8Kp4Vr1BaPQszSfuxJXjyrCy8VFd2BxUSZnJtRkGeNEgnJUbRkZTySqTkjLxVI gDwrxPorh8KdXDgu3MWXrimS/ulUqew8pvncLpU6hwRyIgKZgMdH7xDq604Je71Mn5nekJ brsEK2aia9wUkvt0IF9todTveItaPaE= X-MC-Unique: XM_BCAW6OIalliKhNKxbJA-1 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 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1654240201250100001 Content-Type: text/plain; charset="utf-8" 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=3Dqemu.git;a=3Dcommitdiff;h=3D5a2e67a691501 * https://git.qemu.org/?p=3Dqemu.git;a=3Dcommitdiff;h=3Dfc6e0d0f2db51 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 =3D -2147483648; +int b1_add =3D -2147483648; +long long a2_add =3D -9223372036854775808ULL; +long long b2_add =3D -9223372036854775808ULL; + +int a1_sub; +int b1_sub =3D -2147483648; +long long a2_sub =3D 0L; +long long b2_sub =3D -9223372036854775808ULL; + +int main() +{ + int ret =3D 0; + + if (!overflow_add_32(a1_add, b1_add)) { + fprintf(stderr, "data overflow while adding 32 bits\n"); + ret =3D 1; + } + if (!overflow_add_64(a2_add, b2_add)) { + fprintf(stderr, "data overflow while adding 64 bits\n"); + ret =3D 1; + } + if (!overflow_sub_32(a1_sub, b1_sub)) { + fprintf(stderr, "data overflow while subtracting 32 bits\n"); + ret =3D 1; + } + if (!overflow_sub_64(a2_sub, b2_sub)) { + fprintf(stderr, "data overflow while subtracting 64 bits\n"); + ret =3D 1; + } + return ret; +} --=20 2.31.1