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Wed, 31 Jan 2024 23:09:50 GMT Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 981EF20043; Wed, 31 Jan 2024 23:09:50 +0000 (GMT) Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1A24120040; Wed, 31 Jan 2024 23:09:50 +0000 (GMT) Received: from localhost.localdomain (unknown [9.171.74.74]) by smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 31 Jan 2024 23:09:50 +0000 (GMT) From: Ilya Leoshkevich To: Richard Henderson , David Hildenbrand , Thomas Huth Cc: qemu-s390x@nongnu.org, qemu-devel@nongnu.org, Ilya Leoshkevich , Pavel Zbitskiy Subject: [PATCH v3 4/4] tests/tcg/s390x: Test CONVERT TO BINARY Date: Thu, 1 Feb 2024 00:07:13 +0100 Message-ID: <20240131230938.325919-5-iii@linux.ibm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240131230938.325919-1-iii@linux.ibm.com> References: <20240131230938.325919-1-iii@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: muIeQsakNJlalcv1Y9XQOvaqAPRkF9_x X-Proofpoint-ORIG-GUID: m47RkaQjCvDSq8iHvOHJzWJW6b6xpeMK X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-31_10,2024-01-31_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 mlxlogscore=785 spamscore=0 malwarescore=0 priorityscore=1501 impostorscore=0 mlxscore=0 phishscore=0 lowpriorityscore=0 suspectscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401310178 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Check the CVB's and CVBG's corner cases. Co-developed-by: Pavel Zbitskiy Signed-off-by: Ilya Leoshkevich Reviewed-by: Thomas Huth --- tests/tcg/s390x/Makefile.target | 1 + tests/tcg/s390x/cvb.c | 47 +++++++++++++++++++++++++++++++++ 2 files changed, 48 insertions(+) create mode 100644 tests/tcg/s390x/cvb.c diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target index 04e4bddd83d..e2aba2ec274 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -46,6 +46,7 @@ TESTS+=laalg TESTS+=add-logical-with-carry TESTS+=lae TESTS+=cvd +TESTS+=cvb cdsg: CFLAGS+=-pthread cdsg: LDFLAGS+=-pthread diff --git a/tests/tcg/s390x/cvb.c b/tests/tcg/s390x/cvb.c new file mode 100644 index 00000000000..47b7a7965f4 --- /dev/null +++ b/tests/tcg/s390x/cvb.c @@ -0,0 +1,47 @@ +/* + * Test the CONVERT TO DECIMAL instruction. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include +#include +#include + +static int32_t cvb(uint64_t x) +{ + uint32_t ret; + + asm("cvb %[ret],%[x]" : [ret] "=r" (ret) : [x] "R" (x)); + + return ret; +} + +static int64_t cvbg(__uint128_t x) +{ + int64_t ret; + + asm("cvbg %[ret],%[x]" : [ret] "=r" (ret) : [x] "T" (x)); + + return ret; +} + +int main(void) +{ + __uint128_t m = (((__uint128_t)0x9223372036854775) << 16) | 0x8070; + + assert(cvb(0xc) == 0); + assert(cvb(0x1c) == 1); + assert(cvb(0x25594c) == 25594); + assert(cvb(0x1d) == -1); + assert(cvb(0x2147483647c) == 0x7fffffff); + assert(cvb(0x2147483647d) == -0x7fffffff); + + assert(cvbg(0xc) == 0); + assert(cvbg(0x1c) == 1); + assert(cvbg(0x25594c) == 25594); + assert(cvbg(0x1d) == -1); + assert(cvbg(m | 0xc) == 0x7fffffffffffffff); + assert(cvbg(m | 0xd) == -0x7fffffffffffffff); + + return EXIT_SUCCESS; +}