From: Andrew Haley <aph@redhat.com>
To: Zack Weinberg <zack@codesourcery.com>
Cc: Chris Lattner <sabre@nondot.org>,
Richard.Earnshaw@arm.com, Jim Wilson <wilson@specifixinc.com>,
<gcc-patches@gcc.gnu.org>
Subject: Re: avoid unnecessary register saves for setjmp
Date: Thu, 27 Nov 2003 09:21:00 -0000 [thread overview]
Message-ID: <16325.49098.646932.196135@cuddles.cambridge.redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0311270301180.28662-100000@nondot.org>
Chris Lattner writes:
>
> Zack Weinberg said:
> > I'm going to take this opportunity to throw in a suggestion I've
> > made before, which is that setjmp/longjmp should - always, not
> > just when special variants are used - be converted by the front
> > end into invocations of the exception-unwinding facility, which
> > gives us tons more control.
True. But the obvious problem with this is that it places a burden on
small applications (boot ROMs, say) that might only have a single
setjmp/longjmp. These would be forced to include the unwinder and all
its baggage just for that.
Andrew.
next prev parent reply other threads:[~2003-11-27 9:11 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-27 9:19 Chris Lattner
2003-11-27 9:21 ` Andrew Haley [this message]
2003-11-27 9:22 ` Chris Lattner
2003-11-27 9:39 ` Andrew Haley
2003-11-27 9:43 ` Chris Lattner
2003-11-27 10:14 ` Zack Weinberg
2003-11-27 10:15 ` Chris Lattner
2003-11-27 11:01 ` Zack Weinberg
2003-11-27 20:28 ` Chris Lattner
2003-11-27 20:51 ` Gabriel Dos Reis
2003-11-27 15:41 ` Jan Vroonhof
2003-11-27 16:23 ` Jan Vroonhof
2003-11-27 10:31 ` Andrew Haley
2003-11-27 10:53 ` Zack Weinberg
[not found] <5cad8ef043da68f2a3332f00bd6a186a3fc6195b@mail.esmertec.com>
2003-11-27 20:44 ` Chris Lattner
-- strict thread matches above, loose matches on Subject: below --
2003-11-22 4:13 Richard Kenner
2003-12-01 3:29 ` Jim Wilson
2003-11-21 5:54 Jim Wilson
2003-11-21 18:39 ` Daniel Jacobowitz
2003-11-22 0:22 ` Jim Wilson
2003-11-22 3:57 ` Daniel Jacobowitz
2003-11-22 9:06 ` Jim Wilson
2003-11-22 14:37 ` Richard Earnshaw
2003-11-22 16:33 ` Daniel Jacobowitz
2003-11-27 9:11 ` Zack Weinberg
2003-11-27 17:11 ` Andrew Pinski
2003-11-27 18:23 ` Zack Weinberg
2003-11-28 5:15 ` Geert Bosch
2003-11-28 11:14 ` Richard Earnshaw
2003-11-28 14:02 ` Richard Earnshaw
2003-11-21 20:14 ` Geoff Keating
2003-11-22 0:20 ` Jim Wilson
2003-11-30 9:23 ` Jim Wilson
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