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From: "eric.weddington at atmel dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/45263] registers used in __do_global_ctors can get clobbered
Date: Sun, 05 Dec 2010 19:53:00 -0000 [thread overview]
Message-ID: <bug-45263-4-tNXV3M1oaZ@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-45263-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45263
--- Comment #10 from Eric Weddington <eric.weddington at atmel dot com> 2010-12-05 19:52:33 UTC ---
(In reply to comment #9)
> Is R15 used anywhere else in startup code that might not obey the register save
> conventions (ie does do_global_ctors need to preserve R15)
I strongly suggest not using R15. The ATtiny10 Family of devices
(ATtiny10/4/5/9/20/40) only has R16-R31. So using R15 won't work for this class
of devices. It would be best if we can find a register that will for all AVR
devices.
next prev parent reply other threads:[~2010-12-05 19:53 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-45263-4@http.gcc.gnu.org/bugzilla/>
2010-11-20 3:53 ` orangewarrior at gmail dot com
2010-11-29 15:00 ` rguenth at gcc dot gnu.org
2010-11-30 15:22 ` mschulze at ivs dot cs.ovgu.de
2010-11-30 15:41 ` mschulze at ivs dot cs.ovgu.de
2010-12-04 3:11 ` westfw at yahoo dot com
2010-12-05 19:53 ` eric.weddington at atmel dot com [this message]
2010-12-06 9:08 ` mschulze at ivs dot cs.ovgu.de
2011-04-13 16:38 ` gjl at gcc dot gnu.org
2011-04-13 16:46 ` gjl at gcc dot gnu.org
2011-04-14 15:40 ` gjl at gcc dot gnu.org
2011-05-30 8:56 ` gjl at gcc dot gnu.org
2011-05-30 15:23 ` gjl at gcc dot gnu.org
2012-05-02 17:25 ` gjl at gcc dot gnu.org
2012-05-02 17:28 ` gjl at gcc dot gnu.org
2014-03-31 20:09 ` gjl at gcc dot gnu.org
2010-08-12 1:20 [Bug c/45263] New: " gcc at d-silva dot org
2010-08-12 1:21 ` [Bug target/45263] " gcc at d-silva dot org
2010-08-12 1:21 ` pinskia at gcc dot gnu dot org
2010-08-12 1:22 ` gcc at d-silva dot org
2010-08-12 1:23 ` gcc at d-silva dot org
2010-08-12 2:40 ` gcc at d-silva dot org
2010-08-22 13:26 ` eric dot weddington at atmel dot com
2010-08-22 15:56 ` ah dot linder at arcor dot de
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