From: Dmitry Antipov <dmantipov@yandex.ru>
To: Paul Eggert <eggert@cs.ucla.edu>
Cc: Stefan Monnier <monnier@iro.umontreal.ca>,
Emacs development discussions <emacs-devel@gnu.org>
Subject: Re: [RFC, PATCH] shrink struct vectorlike_header #2
Date: Thu, 08 Nov 2012 17:31:11 +0400 [thread overview]
Message-ID: <509BB41F.6080108@yandex.ru> (raw)
In-Reply-To: <509B4246.2050203@cs.ucla.edu>
On 11/08/2012 09:25 AM, Paul Eggert wrote:
> But better yet would be to omit the casts entirely.
> This might let GCC do more optimizations safely. That is,
> change struct Lisp_Vector to be something like this:
>
> struct Lisp_Vector
> {
> struct vectorlike_header header;
> union
> {
> Lisp_Object contents[1];
> struct Lisp_Vector *next;
> } u;
> };
This is the most clean way, but
> Replace all current uses of 'contents'
> with 'u.contents',
is it worth doing such a massive change just to avoid one little glitch?
Dmitry
next prev parent reply other threads:[~2012-11-08 13:31 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-11 6:41 [PATCH] shrink struct vectorlike_header Dmitry Antipov
2012-10-11 12:57 ` Stefan Monnier
2012-11-06 17:09 ` [RFC, PATCH] shrink struct vectorlike_header #2 Dmitry Antipov
2012-11-06 18:17 ` Stefan Monnier
2012-11-07 14:57 ` Dmitry Antipov
2012-11-08 3:08 ` Stefan Monnier
2012-11-08 5:25 ` Paul Eggert
2012-11-08 13:31 ` Dmitry Antipov [this message]
2012-11-08 14:03 ` Stefan Monnier
2012-11-08 14:45 ` Dmitry Antipov
2012-11-08 15:08 ` Dmitry Antipov
2012-11-08 16:30 ` Paul Eggert
2012-11-08 17:12 ` Andreas Schwab
2012-11-08 17:42 ` Nix
2012-11-09 18:04 ` Andreas Rottmann
2012-11-08 6:56 ` Stephen J. Turnbull
2012-11-06 20:53 ` Paul Eggert
2012-11-06 21:28 ` Eli Zaretskii
2012-10-11 16:42 ` [PATCH] shrink struct vectorlike_header Eli Zaretskii
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