* [Bug target/7513] [ARM/Thumb] cross-compiler -mthumb -O2 trashes link register
[not found] <20020806175601.7513.ted@arraycomm.com>
@ 2003-05-26 4:10 ` dhazeghi@yahoo.com
2003-05-26 4:11 ` pinskia@physics.uc.edu
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From: dhazeghi@yahoo.com @ 2003-05-26 4:10 UTC (permalink / raw)
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------- Additional Comments From dhazeghi@yahoo.com 2003-05-26 04:07 -------
Hello,
gcc 3.1 is a bit old at this point. Would it be possible for you to test against a more recent version
(ie gcc 3.3) and see if this problem still occurs? Also the testcase you include is quite lengthy.
Would it be at all possible for you reduce it to something a bit smaller? Thanks,
Dara
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2003-05-26 4:10 ` [Bug target/7513] [ARM/Thumb] cross-compiler -mthumb -O2 trashes link register dhazeghi@yahoo.com
@ 2003-05-26 4:11 ` pinskia@physics.uc.edu
2003-06-02 3:58 ` dhazeghi@yahoo.com
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From: pinskia@physics.uc.edu @ 2003-05-26 4:11 UTC (permalink / raw)
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pinskia@physics.uc.edu changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
------- Additional Comments From pinskia@physics.uc.edu 2003-05-26 04:09 -------
See Dara's Question.
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2003-05-26 4:10 ` [Bug target/7513] [ARM/Thumb] cross-compiler -mthumb -O2 trashes link register dhazeghi@yahoo.com
2003-05-26 4:11 ` pinskia@physics.uc.edu
@ 2003-06-02 3:58 ` dhazeghi@yahoo.com
2003-06-02 14:44 ` rearnsha@gcc.gnu.org
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From: dhazeghi@yahoo.com @ 2003-06-02 3:58 UTC (permalink / raw)
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dhazeghi@yahoo.com changed:
What |Removed |Added
----------------------------------------------------------------------------
GCC build triplet| |sparc-sun-solaris
GCC host triplet| |sparc-sun-solaris
GCC target triplet| |arm-elf
------- Additional Comments From dhazeghi@yahoo.com 2003-06-02 03:58 -------
Hello,
if I send you the assembly files produced by gcc 3.3 branch and mainline, can you confirm whether
they still exhibit this problem? Thanks,
Dara
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2003-06-02 3:58 ` dhazeghi@yahoo.com
@ 2003-06-02 14:44 ` rearnsha@gcc.gnu.org
2003-06-03 18:46 ` ted@arraycomm.com
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From: rearnsha@gcc.gnu.org @ 2003-06-02 14:44 UTC (permalink / raw)
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rearnsha@gcc.gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rearnsha@arm.com
Status|WAITING |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2003-06-02 14:44:20
date| |
------- Additional Comments From rearnsha@gcc.gnu.org 2003-06-02 14:44 -------
I can confirm that the testcase still shows the bug on 3.3. While the trunk
does not exhibit the problem, that is because other passes have moved the blocks
of code around and eliminated the need for "far" jumps.
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2003-06-02 14:44 ` rearnsha@gcc.gnu.org
@ 2003-06-03 18:46 ` ted@arraycomm.com
2003-07-09 22:05 ` dhazeghi at yahoo dot com
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From: ted@arraycomm.com @ 2003-06-03 18:46 UTC (permalink / raw)
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------- Additional Comments From ted@arraycomm.com 2003-06-03 18:46 -------
Subject: Re: [ARM/Thumb] cross-compiler -mthumb -O2 trashes
link register
I defer to Richard Earnshaw's reply. He is certainly the expert.
May i propose (again) however the simple fix of making -ffixed-lr
be the default until or if the real problem is fixed.
Thanks
Ted Merrill
On 2 Jun 2003, dhazeghi@yahoo.com wrote:
> if I send you the assembly files produced by gcc 3.3 branch and mainline, can you confirm whether
> they still exhibit this problem? Thanks,
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2003-06-03 18:46 ` ted@arraycomm.com
@ 2003-07-09 22:05 ` dhazeghi at yahoo dot com
2003-10-31 21:45 ` cvs-commit at gcc dot gnu dot org
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From: dhazeghi at yahoo dot com @ 2003-07-09 22:05 UTC (permalink / raw)
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dhazeghi at yahoo dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Priority|P3 |P2
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2003-07-09 22:05 ` dhazeghi at yahoo dot com
@ 2003-10-31 21:45 ` cvs-commit at gcc dot gnu dot org
2003-10-31 21:59 ` rearnsha at gcc dot gnu dot org
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From: cvs-commit at gcc dot gnu dot org @ 2003-10-31 21:45 UTC (permalink / raw)
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------- Additional Comments From cvs-commit at gcc dot gnu dot org 2003-10-31 21:44 -------
Subject: Bug 7513
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: rearnsha@gcc.gnu.org 2003-10-31 21:44:40
Modified files:
gcc : ChangeLog
Log message:
Bah! Missed PR no again!
PR target/7513
* arm.h (CONDITIONAL_REGISTER_USAGE): Disable use of LR in Thumb
code.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.1627&r2=2.1628
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2003-10-31 21:45 ` cvs-commit at gcc dot gnu dot org
@ 2003-10-31 21:59 ` rearnsha at gcc dot gnu dot org
2003-12-09 17:26 ` dhazeghi at yahoo dot com
2003-12-19 16:25 ` rearnsha at gcc dot gnu dot org
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From: rearnsha at gcc dot gnu dot org @ 2003-10-31 21:59 UTC (permalink / raw)
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rearnsha at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
------- Additional Comments From rearnsha at gcc dot gnu dot org 2003-10-31 21:49 -------
Fixed with the suggested work-around. Not pleasant!
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2003-10-31 21:59 ` rearnsha at gcc dot gnu dot org
@ 2003-12-09 17:26 ` dhazeghi at yahoo dot com
2003-12-19 16:25 ` rearnsha at gcc dot gnu dot org
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From: dhazeghi at yahoo dot com @ 2003-12-09 17:26 UTC (permalink / raw)
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--
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |3.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7513
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2003-12-09 17:26 ` dhazeghi at yahoo dot com
@ 2003-12-19 16:25 ` rearnsha at gcc dot gnu dot org
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From: rearnsha at gcc dot gnu dot org @ 2003-12-19 16:25 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From rearnsha at gcc dot gnu dot org 2003-12-19 15:43 -------
*** Bug 13199 has been marked as a duplicate of this bug. ***
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |andy dot parker at oxsemi
| |dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7513
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