* usefulness of NO_ARGS_ARRAY
@ 2010-04-15 22:13 Dan Nicolaescu
2010-04-16 9:33 ` Andreas Schwab
0 siblings, 1 reply; 3+ messages in thread
From: Dan Nicolaescu @ 2010-04-15 22:13 UTC (permalink / raw)
To: emacs-devel
NO_ARGS_ARRAY is currently only used on 32bit x86 non-MS Windows machines.
It's doubtful that the few instructions saved make any difference on
modern machines...
NO_ARGS_ARRAY assumes that function arguments are passed on the stack,
but that is not true when using the -mregparam option, or when the
compiler decides to change the calling convention (like gcc-4.5 can
when using -flto).
Do we still want to keep NO_ARGS_ARRAY?
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: usefulness of NO_ARGS_ARRAY
2010-04-15 22:13 usefulness of NO_ARGS_ARRAY Dan Nicolaescu
@ 2010-04-16 9:33 ` Andreas Schwab
2010-04-16 17:46 ` Dan Nicolaescu
0 siblings, 1 reply; 3+ messages in thread
From: Andreas Schwab @ 2010-04-16 9:33 UTC (permalink / raw)
To: Dan Nicolaescu; +Cc: emacs-devel
Dan Nicolaescu <dann@gnu.org> writes:
> NO_ARGS_ARRAY is currently only used on 32bit x86 non-MS Windows machines.
NO_ARG_ARRAY
Every modern system needs to define it.
> NO_ARGS_ARRAY assumes that function arguments are passed on the stack,
ITYM !NO_ARG_ARRAY.
> Do we still want to keep NO_ARGS_ARRAY?
IMHO it should always be defined and consequently removed.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: usefulness of NO_ARGS_ARRAY
2010-04-16 9:33 ` Andreas Schwab
@ 2010-04-16 17:46 ` Dan Nicolaescu
0 siblings, 0 replies; 3+ messages in thread
From: Dan Nicolaescu @ 2010-04-16 17:46 UTC (permalink / raw)
To: Andreas Schwab; +Cc: emacs-devel
Andreas Schwab <schwab@linux-m68k.org> writes:
> Dan Nicolaescu <dann@gnu.org> writes:
>
>> NO_ARGS_ARRAY assumes that function arguments are passed on the stack,
>
> ITYM !NO_ARG_ARRAY.
Exactly.
>> Do we still want to keep NO_ARGS_ARRAY?
>
> IMHO it should always be defined and consequently removed.
That's what I want to do, I'll do that in a week or so if there's no
objection until then.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2010-04-16 17:46 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-04-15 22:13 usefulness of NO_ARGS_ARRAY Dan Nicolaescu
2010-04-16 9:33 ` Andreas Schwab
2010-04-16 17:46 ` Dan Nicolaescu
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
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).