From patchwork Fri Oct 29 19:24:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Fernando Fujita Pires X-Patchwork-Id: 1548218 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4Hgt4x54V7z9sS8 for ; Sat, 30 Oct 2021 06:38:09 +1100 (AEDT) Received: from localhost ([::1]:34896 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mgXhX-0002GK-Dv for incoming@patchwork.ozlabs.org; Fri, 29 Oct 2021 15:38:07 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55968) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mgXUp-0005mI-Ne; Fri, 29 Oct 2021 15:24:59 -0400 Received: from [201.28.113.2] (port=13933 helo=outlook.eldorado.org.br) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mgXUj-0008Cv-W5; Fri, 29 Oct 2021 15:24:59 -0400 Received: from power9a ([10.10.71.235]) by outlook.eldorado.org.br with Microsoft SMTPSVC(8.5.9600.16384); Fri, 29 Oct 2021 16:24:19 -0300 Received: from eldorado.org.br (unknown [10.10.70.45]) by power9a (Postfix) with ESMTP id 7A527800B36; Fri, 29 Oct 2021 16:24:19 -0300 (-03) From: Luis Pires To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Subject: [PATCH v5 00/15] target/ppc: DFP instructions using decodetree Date: Fri, 29 Oct 2021 16:24:02 -0300 Message-Id: <20211029192417.400707-1-luis.pires@eldorado.org.br> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-OriginalArrivalTime: 29 Oct 2021 19:24:19.0795 (UTC) FILETIME=[923B0230:01D7CCFA] X-Host-Lookup-Failed: Reverse DNS lookup failed for 201.28.113.2 (failed) Received-SPF: pass client-ip=201.28.113.2; envelope-from=luis.pires@eldorado.org.br; helo=outlook.eldorado.org.br X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, PDS_HP_HELO_NORDNS=0.001, RDNS_NONE=0.793, SPF_PASS=-0.001, T_SPF_HELO_TEMPERROR=0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Luis Pires , richard.henderson@linaro.org, groug@kaod.org, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This series moves all existing DFP instructions to decodetree and implements the 2 new instructions (dcffixqq and dctfixqq) from Power ISA 3.1. In order to implement dcffixqq, divu128/divs128 were modified to support 128-bit quotients (previously, they were limited to 64-bit quotients), along with adjustments being made to their existing callers. libdecnumber was also expanded to allow creating decimal numbers from 128-bit integers. Similarly, for dctfixqq, mulu128 (host-utils) and decNumberIntegralToInt128 (libdecnumber) were introduced to support 128-bit integers. The remaining patches of this series move all of the already existing DFP instructions to decodetree, and end up removing dfp-ops.c.inc, which is no longer needed. --- I'm resending this series because I missed adding a R-b tag on one of the commits in v4. I also dropped patches that were already applied and rebased against master. All of these patches are reviewed and ready to be applied. Changes in v5: - Rebased against master - Skipped patches that were already applied (v4 1-4) Changes in v4: - Rebased against dgibson/ppc-for-6.2 - Skipped patches that were already applied (v3 1-4) - Changed divu128/divs128 to return the remainder (rth) - Moved changes that drop nip updates to a separate patch (rth) Changes in v3: - Split the uabs64 patch in 2 - Included patch to fix missing zero-extension in divs128 - Folded divisor == 0 into the dhi == 0 case in divu128 - Moved udiv_qrnnd from softfloat-macros.h to host-utils.h - Used udiv_qrnnd in divu128 - Replaced int with bool in divs128 - Added unit test to check the divisor normalization in divu128 - Removed 'inline' from times_* functions in ppc/translate.c - Used uadd64_overflow in mulu128 - Removed unnecessary 'else' from decNumberIntegralToInt128 Changes in v2: - Renamed abs64() to uabs64() Bruno Larsen (1): target/ppc: Move REQUIRE_ALTIVEC/VECTOR to translate.c Fernando Valle (1): target/ppc: Introduce REQUIRE_FPU Luis Pires (13): libdecnumber: introduce decNumberFrom[U]Int128 target/ppc: Implement DCFFIXQQ host-utils: Introduce mulu128 libdecnumber: Introduce decNumberIntegralToInt128 target/ppc: Implement DCTFIXQQ target/ppc: Do not update nip on DFP instructions target/ppc: Move dtstdc[q]/dtstdg[q] to decodetree target/ppc: Move d{add,sub,mul,div,iex}[q] to decodetree target/ppc: Move dcmp{u,o}[q],dts{tex,tsf,tsfi}[q] to decodetree target/ppc: Move dquai[q], drint{x,n}[q] to decodetree target/ppc: Move dqua[q], drrnd[q] to decodetree target/ppc: Move dct{dp,qpq},dr{sp,dpq},dc{f,t}fix[q],dxex[q] to decodetree target/ppc: Move ddedpd[q],denbcd[q],dscli[q],dscri[q] to decodetree include/libdecnumber/decNumber.h | 4 + include/libdecnumber/decNumberLocal.h | 2 +- include/qemu/host-utils.h | 36 +++ libdecnumber/decContext.c | 7 +- libdecnumber/decNumber.c | 131 ++++++++ target/ppc/dfp_helper.c | 168 +++++++--- target/ppc/helper.h | 106 ++++--- target/ppc/insn32.decode | 171 ++++++++++ target/ppc/translate.c | 23 +- target/ppc/translate/dfp-impl.c.inc | 419 ++++++++++++------------- target/ppc/translate/dfp-ops.c.inc | 165 ---------- target/ppc/translate/vector-impl.c.inc | 10 +- 12 files changed, 747 insertions(+), 495 deletions(-) delete mode 100644 target/ppc/translate/dfp-ops.c.inc