From: kenner@vlsi1.ultra.nyu.edu (Richard Kenner)
To: geoffk@geoffk.org
Cc: gcc-patches@gcc.gnu.org
Subject: Re: avoid unnecessary register saves for setjmp
Date: Sat, 22 Nov 2003 04:13:00 -0000 [thread overview]
Message-ID: <10311220406.AA09013@vlsi1.ultra.nyu.edu> (raw)
I've looked at this some time in the past (I don't remember the exact
circumstances). I came to the same conclusion as you, except in the
case when NON_SAVING_SETJMP is defined, when we do need to save any
call-saved registers.
Well, you certainly need to save all the caller-saved registers if there
are any nonlocal gotos (which you have in the Ada exception case), but,
as I understand this change, it still does.
next reply other threads:[~2003-11-22 4:05 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-22 4:13 Richard Kenner [this message]
2003-12-01 3:29 ` Jim Wilson
[not found] <5cad8ef043da68f2a3332f00bd6a186a3fc6195b@mail.esmertec.com>
2003-11-27 20:44 ` Chris Lattner
-- strict thread matches above, loose matches on Subject: below --
2003-11-27 9:19 Chris Lattner
2003-11-27 9:21 ` Andrew Haley
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
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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