From: "Dmitry Bely" <dmitry.bely@gmail.com>
To: caml-list@inria.fr
Subject: Re: [Caml-list] optimizing trivial functions
Date: Mon, 27 Nov 2006 15:00:24 +0300 [thread overview]
Message-ID: <90823c940611270400m475c922fs6020fa2e47cf1e0a@mail.gmail.com> (raw)
In-Reply-To: <8701A805-C71D-4CC0-BAE1-7EFEF5D50B61@cmu.edu>
On 11/26/06, Sean McLaughlin <seanmcl@cmu.edu> wrote:
> > Will the Ocaml compiler optimize the following code to let y = ()?
> > I'm designing a program that will depend heavily on whether this code
> > is optimized in this way.
> >
> > let f x1 x2 ... x100 = ()
> > let y = f x1 ... x100
Yes, ocamlopt can do that.
> To answer my own question, of course it can't do that, because the
> arguments could have side effects.
>
> f (print_int 5) ...
So what? The arguments will be evaluated but the function call will be
optimized away.
I guess you are trying to implement some debugging that can be
switched off in the release version? If so, the following might be
interesting for you:
http://caml.inria.fr/pub/ml-archives/caml-list/2003/09/f2bf1cc8545d5e073638bd70d02b5056.en.html
- Dmitry Bely
prev parent reply other threads:[~2006-11-27 12:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-21 23:20 Sean McLaughlin
2006-11-26 13:36 ` [Caml-list] " Sean McLaughlin
2006-11-27 12:00 ` Dmitry Bely [this message]
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