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 14:30:43 +0100 Message-ID: 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="12241"; 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 14:33:29 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 1ms3GC-0002zP-Lq for ged-emacs-devel@m.gmane-mx.org; Tue, 30 Nov 2021 14:33:28 +0100 Original-Received: from localhost ([::1]:53426 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ms3GA-0006n3-Sb for ged-emacs-devel@m.gmane-mx.org; Tue, 30 Nov 2021 08:33:26 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:53792) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ms3Dk-0005Bb-3F for emacs-devel@gnu.org; Tue, 30 Nov 2021 08:30:56 -0500 Original-Received: from mail1453c50.megamailservers.eu ([91.136.14.53]:60684 helo=mail266c50.megamailservers.eu) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ms3Df-0000BY-HZ for emacs-devel@gnu.org; Tue, 30 Nov 2021 08:30:54 -0500 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1638279046; bh=dZa4XEjkrBREB6EG7OWQyHnjFspRL+Q+zpf4AD8Yg2w=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=E5PKGHBu2gDmXavsUOs+mUCSP+oV3PE/j+iN37jvfU5KN1pRtHCilDwJrvvAOw7nh XoekWAwNlwcJrt2Jpo1axuO07YmbFR6h3P1JWy5KOeeiUB+Q7HjP8+vf+1kJOq//JZ TkorPGtNIQEYUyi2A2xKUKrUu5PEtKaRh+mJLtQ0= 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 mail266c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id 1AUDUiBE006673; Tue, 30 Nov 2021 13:30:46 +0000 In-Reply-To: X-Mailer: Apple Mail (2.3445.104.21) X-CTCH-RefID: str=0001.0A742F2A.61A62786.007F, 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=E5KuGYRl c=1 sm=1 tr=0 ts=61a62786 a=von4qPfY+hyqc0zmWf0tYQ==:117 a=von4qPfY+hyqc0zmWf0tYQ==:17 a=kj9zAlcOel0A:10 a=M51BFTxLslgA:10 a=iRZporoAAAAA:8 a=nq8mvJbMndUHJFfUkHcA:9 a=CjuIK1q_8ugA:10 a=NOBgFS-JBQ2l-kSd6-zu:22 X-Origin-Country: SE Received-SPF: softfail client-ip=91.136.14.53; envelope-from=mattiase@acm.org; helo=mail266c50.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:280533 Archived-At: 30 nov. 2021 kl. 14.19 skrev Stefan Monnier : > I think this optimization can be generalized to the multi-var case by > noticing that the transformation of (vN eN) into a pair (tN eN) ... = (vN tN) > is not necessary because the order of the (v1 t1) ... (vN tN) doesn't = matter > so we can move (vN tN) to the beginning, right next to (tN eN) and = then > merge them back. Not sure how that would work unless you imply some kind of dependency = analysis. Maybe you have an example in mind? (Sorry about the incorrect git summary line, by the way -- = 'multi-binding' should have been 'single-binding'.)