From: Alain Frisch <alain@frisch.fr>
To: Dmitry Bely <dmitry.bely@gmail.com>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Compiler bug?
Date: Mon, 06 Aug 2012 12:11:33 +0200 [thread overview]
Message-ID: <501F9855.6080709@frisch.fr> (raw)
In-Reply-To: <CAMT7qiTJD4hFd4Jr0tKCzhmR=ngN0yV9Pw6CCgEfRPP6a6DYvg@mail.gmail.com>
On 08/06/2012 12:04 PM, Dmitry Bely wrote:
> X parameter is passed as a pointer to float value ([eax] which is
> immediately saved to [ebx]). But If GC happens (L102), float value can
> be moved around the OCaml heap and [ebx] become invalid, right? So the
> generated code is just wrong. Am I missing something?
The GC knows about the location of OCaml values, including those stored
in registers when it is called (the compiler generate tables to retrieve
this information from the GC call site). These values are used as roots
for the GC, and they are updated when the value is moved.
Alain
next prev parent reply other threads:[~2012-08-06 10:11 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-06 10:04 Dmitry Bely
2012-08-06 10:11 ` Alain Frisch [this message]
2012-08-06 10:20 ` Dmitry Bely
2012-08-06 10:34 ` Alain Frisch
2012-08-06 11:03 ` Dmitry Bely
2012-08-06 11:32 ` Alain Frisch
2012-08-06 12:16 ` Dmitry Bely
2012-08-07 1:35 ` Cedric Cellier
2012-08-08 16:03 ` Dmitry Bely
2012-08-08 18:03 ` Alain Frisch
2012-08-08 18:22 ` Jesper Louis Andersen
2012-08-08 18:40 ` Dmitry Bely
2012-08-08 19:29 ` Fabrice Le Fessant
2012-08-08 23:34 ` Anil Madhavapeddy
2012-08-09 0:53 ` Francois Berenger
-- strict thread matches above, loose matches on Subject: below --
2006-05-17 23:14 compiler bug? Dan Koppel
2006-05-17 23:33 ` [Caml-list] " John Carr
2006-05-18 17:15 ` Xavier Leroy
2006-05-18 17:34 ` Jacques Carette
2006-05-18 17:46 ` Xavier Leroy
2006-05-18 19:31 ` Jacques Carette
2006-05-18 20:07 ` David Brown
2006-05-18 20:15 ` Jacques Carette
2006-05-18 20:20 ` Alain Frisch
2006-05-18 18:19 ` skaller
2006-05-18 18:53 ` Jacques Carette
2006-05-19 1:47 ` skaller
2006-05-19 2:17 ` Brian Hurt
2006-05-19 3:11 ` skaller
2006-05-19 16:48 ` Jacques Carette
2006-05-19 19:10 ` skaller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=501F9855.6080709@frisch.fr \
--to=alain@frisch.fr \
--cc=caml-list@inria.fr \
--cc=dmitry.bely@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).