From nobody Thu Nov 6 10:37:35 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 1540214942805400.81613030236576; Mon, 22 Oct 2018 06:29:02 -0700 (PDT) Received: from localhost ([::1]:35085 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gEaGT-0006IF-HP for importer@patchew.org; Mon, 22 Oct 2018 09:29:01 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46243) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gEZn4-0000f5-EL for qemu-devel@nongnu.org; Mon, 22 Oct 2018 08:58:39 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gEZn2-0008MR-IX for qemu-devel@nongnu.org; Mon, 22 Oct 2018 08:58:38 -0400 Received: from mx2.rt-rk.com ([89.216.37.149]:33774 helo=mail.rt-rk.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gEZn0-00089V-Cp for qemu-devel@nongnu.org; Mon, 22 Oct 2018 08:58:34 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id 88F031A23D2; Mon, 22 Oct 2018 14:58:04 +0200 (CEST) Received: from rtrkw774-lin.domain.local (rtrkw774-lin.domain.local [10.10.13.43]) by mail.rt-rk.com (Postfix) with ESMTPSA id 324B41A413B; Mon, 22 Oct 2018 14:58:04 +0200 (CEST) X-Virus-Scanned: amavisd-new at rt-rk.com From: Aleksandar Markovic To: qemu-devel@nongnu.org Date: Mon, 22 Oct 2018 14:57:48 +0200 Message-Id: <1540213077-15211-26-git-send-email-aleksandar.markovic@rt-rk.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1540213077-15211-1-git-send-email-aleksandar.markovic@rt-rk.com> References: <1540213077-15211-1-git-send-email-aleksandar.markovic@rt-rk.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 89.216.37.149 Subject: [Qemu-devel] [PULL 25/34] 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@linaro.org, amarkovic@wavecomp.com 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 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Fredrik Noring Add a test for MULT1. Reviewed-by: Aleksandar Markovic Signed-off-by: Fredrik Noring Signed-off-by: Aleksandar Markovic --- 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 2c0c16d..5710b39 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 2.7.4