From: hjl@lucon.org (H.J. Lu)
To: wilson@cygnus.com (Jim Wilson)
Cc: egcs@cygnus.com
Subject: Re: A patch for CONST_DOUBLE
Date: Tue, 17 Mar 1998 11:27:00 -0000 [thread overview]
Message-ID: <m0yEzo3-00058lC@ocean.lucon.org> (raw)
In-Reply-To: <199803170345.TAA15230@rtl.cygnus.com>
>
> This is mostly covered by other mail, but just to make it clear, this
> patch is wrong.
I know. Have you looked at my latest patch?
>
> You can not use outer_function_chain in a nested function, because this will
> cause dangling pointers. outer_function_chain is not saved/restored across
> nested functions, so if you add object allocated in a nested function to
> this variable, then the parent may end up trying to use them after they
> have already been deallocated.
>
That is exactly what happens, "dangling pointers", on PPro. Please
see the asm output of my 5 new PPro test cases.
Thanks.
--
H.J. Lu (hjl@gnu.org)
next prev parent reply other threads:[~1998-03-17 11:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-03-13 18:47 H.J. Lu
1998-03-16 20:25 ` Jim Wilson
1998-03-17 11:27 ` H.J. Lu [this message]
1998-03-17 11:27 ` Jim Wilson
1998-03-17 11:33 ` H.J. Lu
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=m0yEzo3-00058lC@ocean.lucon.org \
--to=hjl@lucon.org \
--cc=egcs@cygnus.com \
--cc=wilson@cygnus.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 read-only IMAP folder(s) and NNTP newsgroup(s).