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 X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC98DC43331 for ; Thu, 2 Apr 2020 15:29:10 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 860D920675 for ; Thu, 2 Apr 2020 15:29:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 860D920675 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 48tRmz6fk7zDrJ1 for ; Fri, 3 Apr 2020 02:29:07 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com (client-ip=148.163.158.5; helo=mx0a-001b2d01.pphosted.com; envelope-from=bala24@linux.ibm.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 48tRZJ17jJzDrTP for ; Fri, 3 Apr 2020 02:19:51 +1100 (AEDT) Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 032F3cFW065746 for ; Thu, 2 Apr 2020 11:19:48 -0400 Received: from e06smtp01.uk.ibm.com (e06smtp01.uk.ibm.com [195.75.94.97]) by mx0a-001b2d01.pphosted.com with ESMTP id 305emf0fdk-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 02 Apr 2020 11:19:47 -0400 Received: from localhost by e06smtp01.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 2 Apr 2020 16:19:27 +0100 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 032FJfXJ55246888 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 2 Apr 2020 15:19:41 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 338DEA406E; Thu, 2 Apr 2020 15:19:41 +0000 (GMT) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 27A94A4059; Thu, 2 Apr 2020 15:19:39 +0000 (GMT) Received: from localhost.localdomain.com (unknown [9.199.45.155]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 2 Apr 2020 15:19:38 +0000 (GMT) From: Balamuruhan S To: mpe@ellerman.id.au Subject: [PATCH v4 3/3] powerpc test_emulate_step: add testcases for divde[.] and divdeu[.] instructions Date: Thu, 2 Apr 2020 20:49:23 +0530 X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200402151923.605791-1-bala24@linux.ibm.com> References: <20200402151923.605791-1-bala24@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 20040215-4275-0000-0000-000003B848EA X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20040215-4276-0000-0000-000038CD9F86 Message-Id: <20200402151923.605791-4-bala24@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-04-02_05:2020-04-02, 2020-04-02 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 suspectscore=1 mlxlogscore=588 priorityscore=1501 lowpriorityscore=0 clxscore=1015 phishscore=0 malwarescore=0 bulkscore=0 mlxscore=0 impostorscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004020131 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ravi.bangoria@linux.ibm.com, jniethe5@gmail.com, Balamuruhan S , paulus@samba.org, sandipan@linux.ibm.com, naveen.n.rao@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" add testcases for divde, divde., divdeu, divdeu. emulated instructions to cover few scenarios, * with same dividend and divisor to have undefine RT for divdeu[.] * with divide by zero to have undefine RT for both divde[.] and divdeu[.] * with negative dividend to cover -|divisor| < r <= 0 if the dividend is negative for divde[.] * normal case with proper dividend and divisor for both divde[.] and divdeu[.] Reviewed-by: Sandipan Das Signed-off-by: Balamuruhan S Acked-by: Naveen N. Rao --- arch/powerpc/lib/test_emulate_step.c | 164 +++++++++++++++++++++++++++ 1 file changed, 164 insertions(+) diff --git a/arch/powerpc/lib/test_emulate_step.c b/arch/powerpc/lib/test_emulate_step.c index 53df4146dd32..eb1dea47a637 100644 --- a/arch/powerpc/lib/test_emulate_step.c +++ b/arch/powerpc/lib/test_emulate_step.c @@ -54,6 +54,14 @@ ___PPC_RA(a) | ___PPC_RB(b)) #define TEST_ADDC_DOT(t, a, b) (PPC_INST_ADDC | ___PPC_RT(t) | \ ___PPC_RA(a) | ___PPC_RB(b) | 0x1) +#define TEST_DIVDE(t, a, b) (PPC_INST_DIVDE | ___PPC_RT(t) | \ + ___PPC_RA(a) | ___PPC_RB(b)) +#define TEST_DIVDE_DOT(t, a, b) (PPC_INST_DIVDE | ___PPC_RT(t) | \ + ___PPC_RA(a) | ___PPC_RB(b) | 0x1) +#define TEST_DIVDEU(t, a, b) (PPC_INST_DIVDEU | ___PPC_RT(t) | \ + ___PPC_RA(a) | ___PPC_RB(b)) +#define TEST_DIVDEU_DOT(t, a, b)(PPC_INST_DIVDEU | ___PPC_RT(t) | \ + ___PPC_RA(a) | ___PPC_RB(b) | 0x1) #define MAX_SUBTESTS 16 @@ -838,6 +846,162 @@ static struct compute_test compute_tests[] = { } } } + }, + { + .mnemonic = "divde", + .subtests = { + { + .descr = "RA = LONG_MIN, RB = LONG_MIN", + .instr = TEST_DIVDE(20, 21, 22), + .regs = { + .gpr[21] = LONG_MIN, + .gpr[22] = LONG_MIN, + } + }, + { + .descr = "RA = 1L, RB = 0", + .instr = TEST_DIVDE(20, 21, 22), + .flags = IGNORE_GPR(20), + .regs = { + .gpr[21] = 1L, + .gpr[22] = 0, + } + }, + { + .descr = "RA = LONG_MIN, RB = LONG_MAX", + .instr = TEST_DIVDE(20, 21, 22), + .regs = { + .gpr[21] = LONG_MIN, + .gpr[22] = LONG_MAX, + } + } + } + }, + { + .mnemonic = "divde.", + .subtests = { + { + .descr = "RA = LONG_MIN, RB = LONG_MIN", + .instr = TEST_DIVDE_DOT(20, 21, 22), + .regs = { + .gpr[21] = LONG_MIN, + .gpr[22] = LONG_MIN, + } + }, + { + .descr = "RA = 1L, RB = 0", + .instr = TEST_DIVDE_DOT(20, 21, 22), + .flags = IGNORE_GPR(20), + .regs = { + .gpr[21] = 1L, + .gpr[22] = 0, + } + }, + { + .descr = "RA = LONG_MIN, RB = LONG_MAX", + .instr = TEST_DIVDE_DOT(20, 21, 22), + .regs = { + .gpr[21] = LONG_MIN, + .gpr[22] = LONG_MAX, + } + } + } + }, + { + .mnemonic = "divdeu", + .subtests = { + { + .descr = "RA = LONG_MIN, RB = LONG_MIN", + .instr = TEST_DIVDEU(20, 21, 22), + .flags = IGNORE_GPR(20), + .regs = { + .gpr[21] = LONG_MIN, + .gpr[22] = LONG_MIN, + } + }, + { + .descr = "RA = 1L, RB = 0", + .instr = TEST_DIVDEU(20, 21, 22), + .flags = IGNORE_GPR(20), + .regs = { + .gpr[21] = 1L, + .gpr[22] = 0, + } + }, + { + .descr = "RA = LONG_MIN, RB = LONG_MAX", + .instr = TEST_DIVDEU(20, 21, 22), + .regs = { + .gpr[21] = LONG_MIN, + .gpr[22] = LONG_MAX, + } + }, + { + .descr = "RA = LONG_MAX - 1, RB = LONG_MAX", + .instr = TEST_DIVDEU(20, 21, 22), + .regs = { + .gpr[21] = LONG_MAX - 1, + .gpr[22] = LONG_MAX, + } + }, + { + .descr = "RA = LONG_MIN + 1, RB = LONG_MIN", + .instr = TEST_DIVDEU(20, 21, 22), + .flags = IGNORE_GPR(20), + .regs = { + .gpr[21] = LONG_MIN + 1, + .gpr[22] = LONG_MIN, + } + } + } + }, + { + .mnemonic = "divdeu.", + .subtests = { + { + .descr = "RA = LONG_MIN, RB = LONG_MIN", + .instr = TEST_DIVDEU_DOT(20, 21, 22), + .flags = IGNORE_GPR(20), + .regs = { + .gpr[21] = LONG_MIN, + .gpr[22] = LONG_MIN, + } + }, + { + .descr = "RA = 1L, RB = 0", + .instr = TEST_DIVDEU_DOT(20, 21, 22), + .flags = IGNORE_GPR(20), + .regs = { + .gpr[21] = 1L, + .gpr[22] = 0, + } + }, + { + .descr = "RA = LONG_MIN, RB = LONG_MAX", + .instr = TEST_DIVDEU_DOT(20, 21, 22), + .regs = { + .gpr[21] = LONG_MIN, + .gpr[22] = LONG_MAX, + } + }, + { + .descr = "RA = LONG_MAX - 1, RB = LONG_MAX", + .instr = TEST_DIVDEU_DOT(20, 21, 22), + .regs = { + .gpr[21] = LONG_MAX - 1, + .gpr[22] = LONG_MAX, + } + }, + { + .descr = "RA = LONG_MIN + 1, RB = LONG_MIN", + .instr = TEST_DIVDEU_DOT(20, 21, 22), + .flags = IGNORE_GPR(20), + .regs = { + .gpr[21] = LONG_MIN + 1, + .gpr[22] = LONG_MIN, + } + } + } } }; -- 2.24.1