From patchwork Sun Oct 21 15:41:32 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fredrik Noring X-Patchwork-Id: 10650885 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4F1331508 for ; Sun, 21 Oct 2018 15:44:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3D553286D5 for ; Sun, 21 Oct 2018 15:44:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 30196287C0; Sun, 21 Oct 2018 15:44:46 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id CA6FD286D5 for ; Sun, 21 Oct 2018 15:44:45 +0000 (UTC) Received: from localhost ([::1]:59318 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gEFuH-0001JA-3k for patchwork-qemu-devel@patchwork.kernel.org; Sun, 21 Oct 2018 11:44:45 -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) X-Virus-Scanned: Debian amavisd-new at bahnhof.se 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) Date: Sun, 21 Oct 2018 17:41:32 +0200 From: Fredrik Noring To: Aleksandar Markovic , "Maciej W. Rozycki" , Philippe =?utf-8?q?Mathieu-Daud?= =?utf-8?q?=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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP 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/multu.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. */ #include @@ -25,15 +25,44 @@ static uint64_t multu(uint32_t rs, uint32_t rt) return r; } +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" + : "=r" (rd), "=r" (lo), "=r" (hi) + : "r" (rs), "r" (rt)); + r = ((uint64_t)hi << 32) | (uint32_t)lo; + + assert((uint64_t)rs * rt == r); + assert(rd == lo); + + return r; +} + +static uint64_t multu_variants(uint32_t rs, uint32_t rt) +{ + uint64_t rd = multu(rs, rt); + uint64_t rd1 = multu1(rs, rt); + + assert(rd == rd1); + + return rd; +} + int main() { - assert(multu(17, 19) == 323); - assert(multu(77773, 99991) == 7776600043); - assert(multu(12207031, 305175781) == 3725290219116211); + assert(multu_variants(17, 19) == 323); + assert(multu_variants(77773, 99991) == 7776600043); + assert(multu_variants(12207031, 305175781) == 3725290219116211); - assert(multu(0x80000000U, 0x7FFFFFFF) == 0x3FFFFFFF80000000); - assert(multu(0x80000000U, 0x80000000U) == 0x4000000000000000); - assert(multu(0xFFFFFFFFU, 0xFFFFFFFFU) == 0xFFFFFFFE00000001U); + assert(multu_variants(0x80000000U, 0x7FFFFFFF) == 0x3FFFFFFF80000000); + assert(multu_variants(0x80000000U, 0x80000000U) == 0x4000000000000000); + assert(multu_variants(0xFFFFFFFFU, 0xFFFFFFFFU) == 0xFFFFFFFE00000001U); return 0; }