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Mon, 15 Jan 2024 20:23:13 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E84A620040; Mon, 15 Jan 2024 20:23:12 +0000 (GMT) Received: from heavy.boeblingen.de.ibm.com (unknown [9.171.75.248]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 15 Jan 2024 20:23:12 +0000 (GMT) From: Ilya Leoshkevich To: Thomas Huth , Richard Henderson , David Hildenbrand Cc: qemu-s390x@nongnu.org, qemu-devel@nongnu.org, Ilya Leoshkevich Subject: [PATCH 2/2] tests/tcg/s390x: Test CONVERT TO DECIMAL Date: Mon, 15 Jan 2024 21:21:04 +0100 Message-ID: <20240115202308.1930675-3-iii@linux.ibm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240115202308.1930675-1-iii@linux.ibm.com> References: <20240115202308.1930675-1-iii@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: NbjtiJsooWpQwx8XeZ0X_CRPp34CsAxN X-Proofpoint-GUID: fOLdGv5AS7kFbFIBSozyWZTVJoy0Lucv X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-15_13,2024-01-15_03,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 bulkscore=0 adultscore=0 impostorscore=0 mlxscore=0 phishscore=0 suspectscore=0 spamscore=0 mlxlogscore=818 clxscore=1015 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401150150 Received-SPF: pass client-ip=148.163.158.5; envelope-from=iii@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org Check the CVD's and CVDG's corner cases. Signed-off-by: Ilya Leoshkevich Tested-by: Thomas Huth --- tests/tcg/s390x/Makefile.target | 1 + tests/tcg/s390x/cvd.c | 42 +++++++++++++++++++++++++++++++++ 2 files changed, 43 insertions(+) create mode 100644 tests/tcg/s390x/cvd.c diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target index 30994dcf9c2..04e4bddd83d 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -45,6 +45,7 @@ TESTS+=clc TESTS+=laalg TESTS+=add-logical-with-carry TESTS+=lae +TESTS+=cvd cdsg: CFLAGS+=-pthread cdsg: LDFLAGS+=-pthread diff --git a/tests/tcg/s390x/cvd.c b/tests/tcg/s390x/cvd.c new file mode 100644 index 00000000000..4d12282c6aa --- /dev/null +++ b/tests/tcg/s390x/cvd.c @@ -0,0 +1,42 @@ +/* + * Test the CONVERT TO DECIMAL instruction. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include +#include + +static uint64_t cvd(int32_t x) +{ + uint64_t ret; + + asm("cvd %[x],%[ret]" : [ret] "=R" (ret) : [x] "r" (x)); + + return ret; +} + +static __uint128_t cvdg(int64_t x) +{ + __uint128_t ret; + + asm("cvdg %[x],%[ret]" : [ret] "=T" (ret) : [x] "r" (x)); + + return ret; +} + +int main(void) +{ + __uint128_t m = (((__uint128_t)0x9223372036854775) << 16) | 0x8070; + + assert(cvd(0) == 0xc); + assert(cvd(1) == 0x1c); + assert(cvd(-1) == 0x1d); + assert(cvd(0x7fffffff) == 0x2147483647c); + assert(cvd(-0x7fffffff) == 0x2147483647d); + + assert(cvdg(0) == 0xc); + assert(cvdg(1) == 0x1c); + assert(cvdg(-1) == 0x1d); + assert(cvdg(0x7fffffffffffffff) == (m | 0xc)); + assert(cvdg(-0x7fffffffffffffff) == (m | 0xd)); +}