From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Po Lu Newsgroups: gmane.emacs.devel Subject: Re: Shrinking the C core Date: Mon, 21 Aug 2023 12:43:34 +0800 Message-ID: <87r0nxatu1.fsf@yahoo.com> References: <20230809094655.793FC18A4654@snark.thyrsus.com> <87y1i6e1uh.fsf@localhost> <874jkub40o.fsf@dataswamp.org> <87jztqdw2l.fsf@localhost> <87msym9i4r.fsf@dataswamp.org> <877cpp914t.fsf@localhost> <83fs4dwwdo.fsf@gnu.org> <874jkt90a5.fsf@localhost> <87y1i57jqi.fsf@localhost> <87pm3h7h8k.fsf@localhost> <87h6ot7cf3.fsf@localhost> <87edjx7c0b.fsf@localhost> <831qfxw2cx.fsf@gnu.org> <87v8d95918.fsf@localhost> <87zg2lav4b.fsf@yahoo.com> <87sf8d57wf.fsf@localhost> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="29692"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: Eli Zaretskii , ams@gnu.org, incal@dataswamp.org, emacs-devel@gnu.org To: Ihor Radchenko Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Aug 21 06:44:32 2023 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qXwmF-0007Y1-A5 for ged-emacs-devel@m.gmane-mx.org; Mon, 21 Aug 2023 06:44:31 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qXwlX-0000j6-V3; Mon, 21 Aug 2023 00:43:47 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qXwlW-0000iw-N4 for emacs-devel@gnu.org; Mon, 21 Aug 2023 00:43:46 -0400 Original-Received: from sonic311-25.consmr.mail.ne1.yahoo.com ([66.163.188.206]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qXwlT-0004g4-W0 for emacs-devel@gnu.org; Mon, 21 Aug 2023 00:43:46 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1692593022; bh=uEygHH/tcKWc6J+9UkHOttLXI+lvEzJb3+Jhw2XA7BY=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From:Subject:Reply-To; b=Y20V4LacD1DpdYkbDtNwYLAvbzIkVbCz/kAmW86zlTCH6163kfQGGCIFCW1L4i0vukBOxYGZ5h12PBdUYWGiqJle/rHOttsxpmJWhi4EtRkEYR46l8FtFqwxdyFm15FYGa+hgYoKR/32QALbndodpGc1tI2njpLSs5r3wZaExX32RJByF9vgnCYG82m9QNvySgpHElmIxboV5Zdq04HBJNNClVjWwP+NWA/nAvEq4E9KvrAjI1w/ynnK2N+LLTekvfKTp3eCMprbrzwgMSXVyHclQfn/DRW4NI0SjVCk1GmpicwYsump17Yip6L+io3EBRaYwSixaI4J9NhYAW2owA== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1692593022; bh=b1PkzbkeAwiRixfQrl9UYx8cIKnLpATNhrI/ZVSp+KY=; h=X-Sonic-MF:From:To:Subject:Date:From:Subject; b=lPm7CTqboshLm02PFNx5vWhoxuWLTZrq3tg33sdgivG3oNEfZ6Rmv4djZOMzjAYRnjVsLB+UNqY4jpl/CJ3Kg5Pz4ZDV+XIxwW0sfrXIhmzl57yqp2oTnSp/IMewcc24B1U2XED9QrOopobFOEiJPxZ4v6GNO9F/e0a1ZnxPHQRWKFJi2Z70wAVAg4zYfwS9U/QJE3XvapPqcyEvk2+sNgmKGcocSDnDy6HEVqwh1INYBzeT8zHZJFQdIfAGRPiYzPF+avvCoWVorb7OztqblN6TZoe5N2RunVTEGluk6kz/enL4H2jMYiVbHFrlIQD4C8IYauBI8GEBtPCoQCH6Qw== X-YMail-OSG: DrPoaC8VM1nRt7fHc2eg.zS7bpr8FP_3_kK3JS6ThwWF3d3IjDh3vNDyGHl6QaZ qrPIxKiky4T0kb_mSpF4eJpYcbHtri8lOtLLBlFdDqxl3EhhVVPZv6lkE5XKYcznZqiCMa4692Vs rjikEbClY0d5tJC_YVgpvA2w1UAEWDfEZZ2cQb.bK7yNp6lCsqxz77CnXbVVprAv80tcsjFWpjJc HO1YLMSrzVw.WA2CScb0wJ0XvMMuYLOxGSXTSbYVAW8RHhuChzkiwQvi971lI9AHtGgKjMImG9g6 9R7gdIZOECP8r.Vz0wSb3aHkIp31L4RLqWBllrjDO567AaY89d7Lrhs2d1H1JDlwhf7eN6tP75uu B2ca95qG.7PE02O0usTA2ONzJhDDpfto98hwFILJsGoE5SkrAqhc_LV6UAvTRzlM0jyGUZr8M9c4 9vsUDsteEwUWSij8hqekgzS7HFcYKYnvE0rAtS1ygx1er1gYtGzxTS5JuiSuXsrreQQo9ThtW5at wQSYC6fiW9HTygUy_X6j_PGAlhhLhefe7RwxSW8kU4azvMM722tpmI4TwrYFNaMyBsta6OjpAlAd yPtft9Oa_WX4gjgrwWIt8do4nIQPYwaPCmxZLqLBth21TKLKQOQ8mPW_A90h2QWf.jH1a0c6LL03 Rq7lvmR1r5dSOqWRWkWiVbR1_.ykM5beaAHG71UK_jupEv3flawjurhWPChJs9bqzFzWA2N8PDkJ zaUi.mGoBVC9H24c2cII1asDVah0Tsqyb3qE00lD._OZxab2NKcv2PasKp6gfjSlCmWmf9z9AQmS QThF8V1lsyMF.TV0eglpLELyQo5fgDI7HaUXZhB4xx X-Sonic-MF: X-Sonic-ID: 061262d4-0208-4b43-93a7-6a6e6bdfd5f7 Original-Received: from sonic.gate.mail.ne1.yahoo.com by sonic311.consmr.mail.ne1.yahoo.com with HTTP; Mon, 21 Aug 2023 04:43:42 +0000 Original-Received: by hermes--production-sg3-69654d8bd-752gm (Yahoo Inc. Hermes SMTP Server) with ESMTPA ID de40ed626bf6a28dd0f979f6f6187126; Mon, 21 Aug 2023 04:43:39 +0000 (UTC) In-Reply-To: <87sf8d57wf.fsf@localhost> (Ihor Radchenko's message of "Mon, 21 Aug 2023 04:36:16 +0000") X-Mailer: WebService/1.1.21732 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Received-SPF: pass client-ip=66.163.188.206; envelope-from=luangruo@yahoo.com; helo=sonic311-25.consmr.mail.ne1.yahoo.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:309018 Archived-At: Ihor Radchenko writes: > I do understand that the approach you propose is indeed used, for > example, for `car' in emit_lval_XCAR. However, is it practical for > functions like `floor'? > > `car' implementation is very unlikely to change in future. Why not? > But `floor' and other functions (we should not be limited to `floor') > may change their implementations. The extra "native comp" copy of the > implementation will need to be always synchronized with the original > implementation. I doubt that it is practical maintenance-wise. How and why so? How are Fcar and Ffloor divergent in this department?