From owner-svn-src-all@freebsd.org Wed Sep 25 15:30:29 2019 Return-Path: Delivered-To: svn-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 406C412A806; Wed, 25 Sep 2019 15:30:29 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: from mail-io1-f47.google.com (mail-io1-f47.google.com [209.85.166.47]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46dhpD1QjHz43H8; Wed, 25 Sep 2019 15:30:28 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: by mail-io1-f47.google.com with SMTP id z19so14966817ior.0; Wed, 25 Sep 2019 08:30:28 -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=/Z4kl+yLTofTxgnzPZ5+Wr3roqZZUrVuxTgMi1w2KbY=; b=RDuTeUMe9kfvXciy8yTmhMEBEyXBcyyTmrdmZF3znLjTqt9Sf/BGq/JLKaR8ZnW8xR W/qiaoTCdryHC7PlulBtq5t7syMXcNNlIwSdWka1HQfhj5QaUoZw0hHayc2WEAwBscG+ KI31Eh9jH8TbjyUad9tvKWJpsDR8+d5qcM7/eKuCG5zTsD3rsB3PBpO+zFTBgqMFoGxe 7lUn/+Xe4tpMlCXkVRIjhATfDknpy/CVaVgk3TZIdzRaH4xYXEkKtincdsGxHEQKXmLc 31PFLaW0Mhx1+YJs57ivX6hr8W92i7IiTgOCjLcVUUkhipKNBSQnGNq+ws4bO30080uA 7rdg== X-Gm-Message-State: APjAAAVndV6OEw2U8uJYxgAfupModLc/U9NsC1Bdh8JP62hlNkfyLlJd +o1bZ8JcrAs0YmrN0IPG0PS6TO8wfBYdx9RP1n0= X-Google-Smtp-Source: APXvYqxlnh4f37EQt2/x1teyFkdP18eqJwPrpVmO6NoRdpGp/cuATJWW7YHgVzVpJHPuQkzkmygn/XPQ2gG1sMQwLjI= X-Received: by 2002:a92:c691:: with SMTP id o17mr951203ilg.185.1569425427194; Wed, 25 Sep 2019 08:30:27 -0700 (PDT) MIME-Version: 1.0 References: <201909021356.x82Dui6v077765@repo.freebsd.org> <20190920212702.N1017@besplex.bde.org> In-Reply-To: From: Ed Maste Date: Wed, 25 Sep 2019 11:30:14 -0400 Message-ID: Subject: Re: svn commit: r351700 - head/lib/libc/string To: Bruce Evans Cc: src-committers , svn-src-all , svn-src-head Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 46dhpD1QjHz43H8 X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of carpeddiem@gmail.com designates 209.85.166.47 as permitted sender) smtp.mailfrom=carpeddiem@gmail.com X-Spamd-Result: default: False [-4.18 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; MIME_TRACE(0.00)[0:+]; DMARC_NA(0.00)[freebsd.org]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[47.166.85.209.list.dnswl.org : 127.0.5.0]; IP_SCORE(-2.18)[ip: (-5.35), ipnet: 209.85.128.0/17(-3.29), asn: 15169(-2.18), country: US(-0.05)]; FORGED_SENDER(0.30)[emaste@freebsd.org,carpeddiem@gmail.com]; FREEMAIL_TO(0.00)[optusnet.com.au]; RWL_MAILSPIKE_POSSIBLE(0.00)[47.166.85.209.rep.mailspike.net : 127.0.0.17]; R_DKIM_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; FROM_NEQ_ENVFROM(0.00)[emaste@freebsd.org,carpeddiem@gmail.com]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 25 Sep 2019 15:30:29 -0000 On Wed, 25 Sep 2019 at 10:11, Ed Maste wrote: > > Functionally equivalent, although I compared the compiled output of > both cases and what's currently there is somewhat smaller. Note that > it's not an #else case, the equivalent loop is used in both cases - > handling the non-word-size residue in the __GNUC__ case. Ah, actually I think I'm mistaken here - what's in the tree does indeed compile to a slightly smaller object, but just due to arbitrary nop alignment.