From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: =?utf-8?Q?Mattias_Engdeg=C3=A5rd?= Newsgroups: gmane.emacs.devel Subject: Re: master 68c09c6: Better CPS conversion of multi-binding `let` Date: Tue, 30 Nov 2021 14:49:36 +0100 Message-ID: <9202FA8C-5AE4-4638-A3AA-29C7FA733BA6@acm.org> References: <20211130120404.23495.29099@vcs0.savannah.gnu.org> <20211130120405.6C5F4209FD@vcs0.savannah.gnu.org> Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.21\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="24854"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Nov 30 15:15:19 2021 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 1ms3ug-0006Cl-N5 for ged-emacs-devel@m.gmane-mx.org; Tue, 30 Nov 2021 15:15:18 +0100 Original-Received: from localhost ([::1]:41066 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ms3ue-0005hl-NL for ged-emacs-devel@m.gmane-mx.org; Tue, 30 Nov 2021 09:15:16 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:58428) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ms3Vz-0001mf-3r for emacs-devel@gnu.org; Tue, 30 Nov 2021 08:49:47 -0500 Original-Received: from mail33c50.megamailservers.eu ([91.136.10.43]:47728) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ms3Vu-0003pQ-Bk for emacs-devel@gnu.org; Tue, 30 Nov 2021 08:49:45 -0500 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1638280178; bh=CXtSNqJgwzX56H0b1PhzWMv4tVYK7mqpgTtvkIgC4h8=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=Lkb6gfb9M5jiUgA/o3edWbXO4v1vd0R2bvXl+Nb+GwKMfmIbrXXJmLI4UNobA6Fln LJJtnAEHiz/qdWL4TOBluLH9jSyPdDI8hjEDtorLu3vmyZo2Qhb2DCGYou5fOws9mm +3vE6oxd4S0QXCgMa1LPhQgzxc1/9BUzEemgA8iY= Feedback-ID: mattiase@acm.or Original-Received: from stanniol.lan (c-b952e353.032-75-73746f71.bbcust.telenor.se [83.227.82.185]) (authenticated bits=0) by mail33c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id 1AUDnaSF021299; Tue, 30 Nov 2021 13:49:38 +0000 In-Reply-To: X-Mailer: Apple Mail (2.3445.104.21) X-CTCH-RefID: str=0001.0A742F25.61A62BF2.0082, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: 0.000 X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-CSC: 0 X-CHA: v=2.4 cv=SKoh6MjH c=1 sm=1 tr=0 ts=61a62bf2 a=von4qPfY+hyqc0zmWf0tYQ==:117 a=von4qPfY+hyqc0zmWf0tYQ==:17 a=kj9zAlcOel0A:10 a=M51BFTxLslgA:10 a=iRZporoAAAAA:8 a=WPU6kg9qGC1ctMYWjjEA:9 a=CjuIK1q_8ugA:10 a=QYH75iMubAgA:10 a=NOBgFS-JBQ2l-kSd6-zu:22 X-Origin-Country: SE Received-SPF: softfail client-ip=91.136.10.43; envelope-from=mattiase@acm.org; helo=mail33c50.megamailservers.eu X-Spam_score_int: -11 X-Spam_score: -1.2 X-Spam_bar: - X-Spam_report: (-1.2 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, SPF_HELO_NONE=0.001, SPF_SOFTFAIL=0.665 autolearn=no 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" Xref: news.gmane.io gmane.emacs.devel:280535 Archived-At: 30 nov. 2021 kl. 14.42 skrev Stefan Monnier : > (let ((x1 e1) ... (xN eN)) > BODY) >=20 > into >=20 > (let* ((t1 e1) ... (tN-1 eN-1) (xN eN) (x1 t1) .. (xN-1 tN-1)) > BODY) Sorry, I should have read your original comment more carefully; I = thought you meant some way of eliminating more than one temporary. Yes, = that's probably a good idea. I'll see what I can do. (That function, cps--transform-1, suffers severely from our lack of TCO = by the way.)