From nobody Tue Dec 16 10:52:20 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1540136718428260.6292039757959; Sun, 21 Oct 2018 08:45:18 -0700 (PDT) Received: from localhost ([::1]:59318 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gEFun-0001JA-57 for importer@patchew.org; Sun, 21 Oct 2018 11:45:17 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46874) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gEFrQ-0006Ph-2t for qemu-devel@nongnu.org; Sun, 21 Oct 2018 11:41:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gEFrM-0005c9-UV for qemu-devel@nongnu.org; Sun, 21 Oct 2018 11:41:48 -0400 Received: from pio-pvt-msa1.bahnhof.se ([79.136.2.40]:35269) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gEFrM-0005bm-Mp for qemu-devel@nongnu.org; Sun, 21 Oct 2018 11:41:44 -0400 Received: from localhost (localhost [127.0.0.1]) by pio-pvt-msa1.bahnhof.se (Postfix) with ESMTP id 762123F486; Sun, 21 Oct 2018 17:41:33 +0200 (CEST) Received: from pio-pvt-msa1.bahnhof.se ([127.0.0.1]) by localhost (pio-pvt-msa1.bahnhof.se [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8KZcWS1lf5BG; Sun, 21 Oct 2018 17:41:32 +0200 (CEST) Received: from localhost (h-41-252.A163.priv.bahnhof.se [46.59.41.252]) (Authenticated sender: mb547485) by pio-pvt-msa1.bahnhof.se (Postfix) with ESMTPA id 7535D3F3A9; Sun, 21 Oct 2018 17:41:32 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at bahnhof.se Date: Sun, 21 Oct 2018 17:41:32 +0200 From: Fredrik Noring To: Aleksandar Markovic , "Maciej W. Rozycki" , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= Message-ID: <37b455609e450610e7b19e227a6e7e9c6117a9f8.1540134918.git.noring@nocrew.org> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 79.136.2.40 Subject: [Qemu-devel] [PATCH v8 28/38] tests/tcg/mips: Test R5900 three-operand MULTU1 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Richard Henderson , qemu-devel@nongnu.org, =?utf-8?Q?J=C3=BCrgen?= Urban , Petar Jovanovic , Aurelien Jarno Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Signed-off-by: Fredrik Noring --- tests/tcg/mips/mipsr5900/multu.c | 43 ++++++++++++++++++++++++++------ 1 file changed, 36 insertions(+), 7 deletions(-) diff --git a/tests/tcg/mips/mipsr5900/multu.c b/tests/tcg/mips/mipsr5900/mu= ltu.c index 3a59675395..f043904d69 100644 --- a/tests/tcg/mips/mipsr5900/multu.c +++ b/tests/tcg/mips/mipsr5900/multu.c @@ -1,5 +1,5 @@ /* - * Test R5900-specific three-operand MULTU. + * Test R5900-specific three-operand MULTU and MULTU1. */ =20 #include @@ -25,15 +25,44 @@ static uint64_t multu(uint32_t rs, uint32_t rt) return r; } =20 +static uint64_t multu1(uint32_t rs, uint32_t rt) +{ + uint32_t rd, lo, hi; + uint64_t r; + + __asm__ __volatile__ ( + " multu1 %0, %3, %4\n" + " mflo1 %1\n" + " mfhi1 %2\n" + : "=3Dr" (rd), "=3Dr" (lo), "=3Dr" (hi) + : "r" (rs), "r" (rt)); + r =3D ((uint64_t)hi << 32) | (uint32_t)lo; + + assert((uint64_t)rs * rt =3D=3D r); + assert(rd =3D=3D lo); + + return r; +} + +static uint64_t multu_variants(uint32_t rs, uint32_t rt) +{ + uint64_t rd =3D multu(rs, rt); + uint64_t rd1 =3D multu1(rs, rt); + + assert(rd =3D=3D rd1); + + return rd; +} + int main() { - assert(multu(17, 19) =3D=3D 323); - assert(multu(77773, 99991) =3D=3D 7776600043); - assert(multu(12207031, 305175781) =3D=3D 3725290219116211); + assert(multu_variants(17, 19) =3D=3D 323); + assert(multu_variants(77773, 99991) =3D=3D 7776600043); + assert(multu_variants(12207031, 305175781) =3D=3D 3725290219116211); =20 - assert(multu(0x80000000U, 0x7FFFFFFF) =3D=3D 0x3FFFFFFF80000000); - assert(multu(0x80000000U, 0x80000000U) =3D=3D 0x4000000000000000); - assert(multu(0xFFFFFFFFU, 0xFFFFFFFFU) =3D=3D 0xFFFFFFFE00000001U); + assert(multu_variants(0x80000000U, 0x7FFFFFFF) =3D=3D 0x3FFFFFFF800000= 00); + assert(multu_variants(0x80000000U, 0x80000000U) =3D=3D 0x400000000000= 0000); + assert(multu_variants(0xFFFFFFFFU, 0xFFFFFFFFU) =3D=3D 0xFFFFFFFE0000= 0001U); =20 return 0; } --=20 2.18.1