From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out30-45.freemail.mail.aliyun.com (out30-45.freemail.mail.aliyun.com [115.124.30.45]) by sourceware.org (Postfix) with ESMTPS id 65BDA384F6DB for ; Fri, 18 Nov 2022 04:43:12 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 65BDA384F6DB Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=linux.alibaba.com X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R701e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018046051;MF=cooper.qu@linux.alibaba.com;NM=1;PH=DS;RN=2;SR=0;TI=SMTPD_---0VV3g-Ic_1668746587; Received: from localhost(mailfrom:cooper.qu@linux.alibaba.com fp:SMTPD_---0VV3g-Ic_1668746587) by smtp.aliyun-inc.com; Fri, 18 Nov 2022 12:43:08 +0800 Date: Fri, 18 Nov 2022 12:43:07 +0800 From: "cooper.qu@linux.alibaba.com" To: Christoph Muellner Cc: gcc-patches@gcc.gnu.org Subject: Re: [PATCH 7/7] riscv: Add basic extension support for XTheadFmv and XTheadInt Message-ID: <20221118044307.GB12452@L-PF1ZESZG-1136.hz.ali.com> References: <20221113214636.2747737-1-christoph.muellner@vrull.eu> <20221113214636.2747737-8-christoph.muellner@vrull.eu> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20221113214636.2747737-8-christoph.muellner@vrull.eu> X-Spam-Status: No, score=-14.3 required=5.0 tests=BAYES_00,ENV_AND_HDR_SPF_MATCH,KAM_DMARC_STATUS,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS,TXREP,UNPARSEABLE_RELAY,USER_IN_DEF_SPF_WL autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On Sun, Nov 13, 2022 at 10:46:36PM +0100, Christoph Muellner wrote: > From: Christoph Müllner > > This patch add basic support for the XTheadFmv and XTheadInt > ISA extension. As both extensions only contain instruction, > which are not supposed to be emitted by the compiler, the support > only covers awareness of the extension name in the march string > and the definition of a feature test macro. > I think the XTheadFmv can be emitted when the data is moved between DImode and DFmode in rv32 target. The intructions are similar to the move instructions of new standard extension "zfa". Thanks, Cooper