From nobody Tue Dec 16 08:19:21 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 1540137425994659.586627359437; Sun, 21 Oct 2018 08:57:05 -0700 (PDT) Received: from localhost ([::1]:59382 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gEG6C-0003PM-OO for importer@patchew.org; Sun, 21 Oct 2018 11:57:04 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46769) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gEFr5-00068J-K6 for qemu-devel@nongnu.org; Sun, 21 Oct 2018 11:41:28 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gEFr2-0005U5-Ei for qemu-devel@nongnu.org; Sun, 21 Oct 2018 11:41:27 -0400 Received: from pio-pvt-msa2.bahnhof.se ([79.136.2.41]:47363) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gEFr2-0005Sq-5W for qemu-devel@nongnu.org; Sun, 21 Oct 2018 11:41:24 -0400 Received: from localhost (localhost [127.0.0.1]) by pio-pvt-msa2.bahnhof.se (Postfix) with ESMTP id E1E553F3B6; Sun, 21 Oct 2018 17:41:22 +0200 (CEST) Received: from pio-pvt-msa2.bahnhof.se ([127.0.0.1]) by localhost (pio-pvt-msa2.bahnhof.se [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id XVcmiaw91gvy; Sun, 21 Oct 2018 17:41:22 +0200 (CEST) Received: from localhost (h-41-252.A163.priv.bahnhof.se [46.59.41.252]) (Authenticated sender: mb547485) by pio-pvt-msa2.bahnhof.se (Postfix) with ESMTPA id E610C3F3AD; Sun, 21 Oct 2018 17:41:21 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at bahnhof.se Date: Sun, 21 Oct 2018 17:41:21 +0200 From: Fredrik Noring To: Aleksandar Markovic , "Maciej W. Rozycki" , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= Message-ID: <2909560e25c4fa5899533558fbe94897e6bf83e5.1540134918.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: 79.136.2.41 Subject: [Qemu-devel] [PATCH v8 27/38] tests/tcg/mips: Test R5900 three-operand MULT1 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/mult.c | 45 +++++++++++++++++++++++++++------ 1 file changed, 37 insertions(+), 8 deletions(-) diff --git a/tests/tcg/mips/mipsr5900/mult.c b/tests/tcg/mips/mipsr5900/mul= t.c index 2c0c16d232..5710b395e6 100644 --- a/tests/tcg/mips/mipsr5900/mult.c +++ b/tests/tcg/mips/mipsr5900/mult.c @@ -1,5 +1,5 @@ /* - * Test R5900-specific three-operand MULT. + * Test R5900-specific three-operand MULT and MULT1. */ =20 #include @@ -25,12 +25,41 @@ static int64_t mult(int32_t rs, int32_t rt) return r; } =20 +static int64_t mult1(int32_t rs, int32_t rt) +{ + int32_t rd, lo, hi; + int64_t r; + + __asm__ __volatile__ ( + " mult1 %0, %3, %4\n" + " mflo1 %1\n" + " mfhi1 %2\n" + : "=3Dr" (rd), "=3Dr" (lo), "=3Dr" (hi) + : "r" (rs), "r" (rt)); + r =3D ((int64_t)hi << 32) | (uint32_t)lo; + + assert((int64_t)rs * rt =3D=3D r); + assert(rd =3D=3D lo); + + return r; +} + +static int64_t mult_variants(int32_t rs, int32_t rt) +{ + int64_t rd =3D mult(rs, rt); + int64_t rd1 =3D mult1(rs, rt); + + assert(rd =3D=3D rd1); + + return rd; +} + static void verify_mult_negations(int32_t rs, int32_t rt, int64_t expected) { - assert(mult(rs, rt) =3D=3D expected); - assert(mult(-rs, rt) =3D=3D -expected); - assert(mult(rs, -rt) =3D=3D -expected); - assert(mult(-rs, -rt) =3D=3D expected); + assert(mult_variants(rs, rt) =3D=3D expected); + assert(mult_variants(-rs, rt) =3D=3D -expected); + assert(mult_variants(rs, -rt) =3D=3D -expected); + assert(mult_variants(-rs, -rt) =3D=3D expected); } =20 int main() @@ -39,9 +68,9 @@ int main() verify_mult_negations(77773, 99991, 7776600043); verify_mult_negations(12207031, 305175781, 3725290219116211); =20 - assert(mult(-0x80000000, 0x7FFFFFFF) =3D=3D -0x3FFFFFFF80000000); - assert(mult(-0x80000000, -0x7FFFFFFF) =3D=3D 0x3FFFFFFF80000000); - assert(mult(-0x80000000, -0x80000000) =3D=3D 0x4000000000000000); + assert(mult_variants(-0x80000000, 0x7FFFFFFF) =3D=3D -0x3FFFFFFF80000= 000); + assert(mult_variants(-0x80000000, -0x7FFFFFFF) =3D=3D 0x3FFFFFFF80000= 000); + assert(mult_variants(-0x80000000, -0x80000000) =3D=3D 0x4000000000000= 000); =20 return 0; } --=20 2.18.1