From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-1.mimecast.com (us-smtp-1.mimecast.com [205.139.110.61]) by sourceware.org (Postfix) with ESMTP id A8623384402A for ; Fri, 31 Jul 2020 13:06:20 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org A8623384402A Received: from mail-qt1-f198.google.com (mail-qt1-f198.google.com [209.85.160.198]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-294-XO_sGxpKMsOuhJpRrms3ow-1; Fri, 31 Jul 2020 09:06:19 -0400 X-MC-Unique: XO_sGxpKMsOuhJpRrms3ow-1 Received: by mail-qt1-f198.google.com with SMTP id f59so7711154qtb.22 for ; Fri, 31 Jul 2020 06:06:19 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:organization :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=CM0muvhB/65g+YM3ue8dG/Cl3UrXMgZEliCqk4LDbfY=; b=eTpW26lCW3UXDz6HpxHv8wv9c1WRMvWG/PKy9A9GMe6Gq48yDiw23flucS9803w9nG EdfrjkXliYHijgPkx3dxLoKOzenaDVmFg6VMOX7xrHbN1URP/h0Xwu7YkdqmIXF3UgEt V67wMpKr+c+wcOzMWeroYuE0Sb5WVInZOi+iGKdOklxlYT4nc4Ig2lhoYhcHi/odSK/1 KDhTJNcjbOiX7ktPr4hKo6+EpWEQzDFSbDoKIKlonHFk5xNLH1MIc1tkrnNrYIVAjBNb +DF2ZgbSBlJ2oGHET1F0YTchV3oR9uPtLDwjz0+DFsth9aOhUT1II6V7Rcr9G6/ArGhp nEvg== X-Gm-Message-State: AOAM532+TdHeeHXt6jSTQg/lQOHpZWpIVduiSbdnks51l7uENyornXRz 705XkcQBcjBsQR7Mqu0RQm49lQq/qbnk1oOJYMcWmrWf+QqusONOfGieQGU2dvzGHjusCM5PwyI 0K4gt4WM= X-Received: by 2002:aed:3102:: with SMTP id 2mr3248164qtg.212.1596200778300; Fri, 31 Jul 2020 06:06:18 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwY0lCmrjz7qANieQl1zkjnAxg11fnr9b3L3GVAuQ4j0ql9zb1q4G43YKW2uCy3njj8D94lLw== X-Received: by 2002:aed:3102:: with SMTP id 2mr3248058qtg.212.1596200777172; Fri, 31 Jul 2020 06:06:17 -0700 (PDT) Received: from [192.168.1.16] (198-84-214-74.cpe.teksavvy.com. [198.84.214.74]) by smtp.gmail.com with ESMTPSA id d8sm9070016qtr.12.2020.07.31.06.06.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 31 Jul 2020 06:06:16 -0700 (PDT) Subject: Re: New x86-64 micro-architecture levels To: Richard Biener , Florian Weimer Cc: "gcc@gcc.gnu.org" , "libc-alpha@sourceware.org" , Dongsheng Song , Tom Stellard , "llvm-dev@lists.llvm.org" , "Mallappa, Premachandra" , "x86-64-abi@googlegroups.com" References: <87365zz3a6.fsf@oldenburg2.str.redhat.com> <87imegn3s0.fsf@oldenburg2.str.redhat.com> <87d04oj5vj.fsf@oldenburg2.str.redhat.com> From: Carlos O'Donell Organization: Red Hat Message-ID: <4a88a74c-8b19-7ca1-07dd-8b56e468fc5c@redhat.com> Date: Fri, 31 Jul 2020 09:06:14 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-3.6 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, NICE_REPLY_A, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=unavailable autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gcc@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 31 Jul 2020 13:06:21 -0000 On 7/22/20 5:26 AM, Richard Biener via Libc-alpha wrote: > So for the bike-shedding I indeed think x86-10{0,1,2,3} > or x86-{A,B,C,..}, eventually duplicating as x86_64- as > suggested by Jan is better than x86-2014 or x86-avx2. Agreed. If we really want to be clear, call it a "level" or something else that has a direct English meaning e.g. x86-level-101. This makes it unambiguously clear that this is some kind of step at which some kind of features are enabled. -- Cheers, Carlos.