From: Luc Maranget <Luc.Maranget@inria.fr>
To: David Brown <caml-list@davidb.org>
Cc: Andreas Rossberg <rossberg@ps.uni-sb.de>, caml-list <caml-list@inria.fr>
Subject: Re: [Caml-list] Does Caml have slow arithmetics ?
Date: Thu, 8 Jul 2004 16:36:53 +0200 [thread overview]
Message-ID: <20040708163653.A1260@beaune.inria.fr> (raw)
In-Reply-To: <20040708140408.GA2386@davidb.org>; from caml-list@davidb.org on Thu, Jul 08, 2004 at 07:04:09AM -0700
> On Thu, Jul 08, 2004 at 11:51:10AM +0200, Andreas Rossberg wrote:
>
> Many ocaml programs depend on tail-call elimination, although I don't
> believe anything in the docs requires it to be done.
>
Well, when programming in caml, I use the following rules (which I hope to be
accurate!)
+ ocamlc does perform tail call elimation
+ ocamlopt does it less often. Namely, calls in tail position
become real tail calls when all their arguments are passed in registers.
(This does not apply to self-tail calls which are always optimized)
On pentiums/x86/IA32 this means that tail calls are performed when the callee
has four arguments or less (if I remember well).
--Luc
> Dave
>
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next prev parent reply other threads:[~2004-07-08 14:36 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-07 6:45 Diego Olivier Fernandez Pons
2004-07-07 8:14 ` Richard Jones
2004-07-07 9:13 ` Basile Starynkevitch [local]
2004-07-07 12:32 ` Diego Olivier Fernandez Pons
2004-07-07 13:00 ` Basile Starynkevitch [local]
2004-07-07 15:09 ` Olivier Pérès
2004-07-07 17:06 ` David Brown
2004-07-07 17:43 ` Olivier Pérès
2004-07-08 3:40 ` David Brown
2004-07-08 11:06 ` Olivier Pérès
2004-07-07 13:06 ` Richard Jones
2004-07-07 13:22 ` David Haguenauer
2004-07-07 15:48 ` Brian Hurt
2004-07-07 13:57 ` Evgeny Chukreev
2004-07-07 14:58 ` Xavier Leroy
2004-07-07 15:48 ` Evgeny Chukreev
2004-07-07 19:16 ` skaller
2004-07-08 3:44 ` David Brown
2004-07-08 5:50 ` skaller
2004-07-08 9:51 ` Andreas Rossberg
2004-07-08 12:03 ` Marcin 'Qrczak' Kowalczyk
2004-07-08 14:04 ` David Brown
2004-07-08 14:36 ` Luc Maranget [this message]
2004-07-08 15:11 ` Alex Baretta
2004-07-08 15:49 ` Luc Maranget
2004-07-09 14:06 ` Alex Baretta
2004-07-09 16:20 ` Markus Mottl
[not found] ` <Luc.Maranget@inria.fr>
2004-07-09 17:54 ` Norman Ramsey
2004-07-12 8:08 ` Luc Maranget
2004-07-08 15:51 ` Markus Mottl
2004-07-08 18:27 ` skaller
2004-07-08 21:14 ` [Caml-list] tail recursion and register poor Intel architecture Brandon J. Van Every
2004-07-08 21:35 ` Brian Hurt
2004-07-08 23:01 ` Brandon J. Van Every
2004-07-09 4:36 ` Brian Hurt
2004-07-09 6:53 ` Florian Hars
2004-07-09 14:44 ` Brandon J. Van Every
2004-07-09 6:55 ` skaller
2004-07-09 14:45 ` Brandon J. Van Every
2004-07-09 16:09 ` skaller
2004-07-10 9:19 ` [Caml-list] embedded OCaml Brandon J. Van Every
2004-07-11 23:11 ` Alex Baretta
2004-07-12 7:39 ` Brandon J. Van Every
2004-07-12 14:04 ` Alex Baretta
2004-07-12 18:48 ` Brandon J. Van Every
2004-07-12 23:22 ` Richard Jones
2004-07-13 6:39 ` Alex Baretta
2004-07-13 8:47 ` Brandon J. Van Every
2004-07-13 8:58 ` Benjamin Geer
2004-07-13 9:47 ` Brandon J. Van Every
2004-07-13 9:18 ` Damien Doligez
2004-07-13 9:56 ` [Caml-list] OCaml as business model Brandon J. Van Every
2004-07-13 9:59 ` Richard Jones
2004-07-13 10:50 ` Brandon J. Van Every
2004-07-13 11:20 ` Damien Doligez
2004-07-13 12:01 ` Brandon J. Van Every
2004-07-14 8:05 ` [Caml-list] embedded OCaml I R T
2004-07-12 10:25 ` Christophe TROESTLER
2004-07-13 7:06 ` Alex Baretta
2004-07-08 17:12 ` Tail calls (Was Re: [Caml-list] Does Caml have slow arithmetics ?) brogoff
2004-07-08 17:23 ` Richard Jones
2004-07-12 17:07 ` Xavier Leroy
2004-07-12 21:13 ` skaller
2004-07-13 7:20 ` Xavier Leroy
2004-07-08 15:00 ` [Caml-list] Does Caml have slow arithmetics ? Brian Hurt
2004-07-08 13:30 ` Alex Baretta
2004-07-07 21:26 ` Jon Harrop
2004-07-08 5:05 ` Jacques GARRIGUE
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