From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ej1-x62c.google.com (mail-ej1-x62c.google.com [IPv6:2a00:1450:4864:20::62c]) by sourceware.org (Postfix) with ESMTPS id 12417397203A for ; Thu, 1 Jul 2021 23:05:23 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 12417397203A Received: by mail-ej1-x62c.google.com with SMTP id hp26so388715ejc.6 for ; Thu, 01 Jul 2021 16:05:23 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=YDOcTqHsf3nBq3DKz31gwHD9oNIGiG1U4rbWz/cnjk4=; b=QODQ6YK/WC3KzjgT+PV/HrFcRGMnSgCKWAPMc7ZQ79bjSvj25mbGovGGFqxT406tNm J+T2F3emmS3qo3RcYVDUZSGg4zwrmAb39bC5/UyR/bVAiCPcAltnxo7eqwW74K/G6vqA oI5RjJHLbNz67pGvUNylSX02dZwto147TbLLTp/F9LVJYzuq7V2y7ghhWKqM7drTQXvy EDCJvp2MeYHYhdCmZ5rfY+t3RfvBi30xrb7fyxgJrA2UC03TtIQioXmuf1giDx+x7iip 4U/eIVG1vIzRqXTZSOpVghlUdQkHxrzuyzSOM4U7RT80wlEqN4cHrIokiMr0TZEH3+Xg nCAA== X-Gm-Message-State: AOAM533AZwjvzjyNgR2cQkHJBo1XYLI3HyYMMnuS7hUX/Ok2jXPnk7kL a9PyyGyhsqxottpqpZkxrDRlo7dz7GoiXQrWaW4= X-Google-Smtp-Source: ABdhPJwka2cGxAyEXk86l+syApM/6Jrpo7XpdMLa0e5vvFQetZhAFEv/tzEupFOmJxoM0ZOqYWDE7SsupnVGCtxHtLI= X-Received: by 2002:a17:907:3c81:: with SMTP id gl1mr2350637ejc.136.1625180722125; Thu, 01 Jul 2021 16:05:22 -0700 (PDT) MIME-Version: 1.0 References: <20210701210537.51272-1-hjl.tools@gmail.com> In-Reply-To: From: Craig Topper Date: Thu, 1 Jul 2021 16:05:10 -0700 Message-ID: Subject: Re: [llvm-dev] [PATCH] Add optional _Float16 support To: "H.J. Lu" Cc: Joseph Myers , llvm-dev , GCC Patches , GNU C Library , IA32 System V Application Binary Interface X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, HTML_MESSAGE, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Jul 2021 23:05:24 -0000 On Thu, Jul 1, 2021 at 4:02 PM H.J. Lu via llvm-dev wrote: > On Thu, Jul 1, 2021 at 3:40 PM Joseph Myers > wrote: > > > > On Thu, 1 Jul 2021, H.J. Lu wrote: > > > > > BTW, _Float16 software emulation may require more than just SSE > > > since we need to do _Float16 load and store with XMM registers. > > > There is no 16bit load/store for XMM registers without AVX512FP16. > > > > You should be able to make the move go via general-purpose registers (for > > example) if you can't do a direct 16-bit load/store for XMM registers. > > > > There is no 16bit move between GPRs and XMM registers without > AVX512FP16. > > Isn't PINSRW supported since SSE1? > > -- > H.J. > _______________________________________________ > LLVM Developers mailing list > llvm-dev@lists.llvm.org > https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev >