* [Bug rtl-optimization/30761] [4.1/4.2/4.3 regression] Error: unsupported relocation against sfp
2007-02-11 10:10 [Bug rtl-optimization/30761] New: [4.3 regression] Error: unsupported relocation against sfp schwab at suse dot de
@ 2007-02-11 10:31 ` pinskia at gcc dot gnu dot org
2007-02-11 10:48 ` pinskia at gcc dot gnu dot org
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From: pinskia at gcc dot gnu dot org @ 2007-02-11 10:31 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from pinskia at gcc dot gnu dot org 2007-02-11 10:31 -------
Actually this has nothing to do with -fsplit-wide-types, This shows up in some
cases without that, There is a reload patch floating about which fixes this.
The problem is that reload does not elimate the soft frame pointer. In fact
this is really a regression in 4.1.0 exposed by:
2005-06-30 Jakub Jelinek <jakub@redhat.com>
* config/rs6000/rs6000.h (FIRST_PSEUDO_REGISTER): Increment.
(DWARF_FRAME_REGISTERS, DWARF_REG_TO_UNWIND_COLUMN): Adjust, so
that addition of sfp doesn't change these.
(FIXED_REGISTERS, CALL_USED_REGISTERS, CALL_REALLY_USED_REGISTERS,
....
I actually saw it in a modified version of 4.1.1.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
GCC target triplet|powerpc-suse-linux |powerpc*-*-*
Summary|[4.3 regression] Error: |[4.1/4.2/4.3 regression]
|unsupported relocation |Error: unsupported
|against sfp |relocation against sfp
Target Milestone|--- |4.1.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761
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2007-02-11 10:10 [Bug rtl-optimization/30761] New: [4.3 regression] Error: unsupported relocation against sfp schwab at suse dot de
2007-02-11 10:31 ` [Bug rtl-optimization/30761] [4.1/4.2/4.3 " pinskia at gcc dot gnu dot org
@ 2007-02-11 10:48 ` pinskia at gcc dot gnu dot org
2007-02-11 19:12 ` [Bug middle-end/30761] " pinskia at gcc dot gnu dot org
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From: pinskia at gcc dot gnu dot org @ 2007-02-11 10:48 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from pinskia at gcc dot gnu dot org 2007-02-11 10:47 -------
(In reply to comment #1)
> I actually saw it in a modified version of 4.1.1.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
OtherBugsDependingO| |28690
nThis| |
Keywords| |link-failure
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761
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2007-02-11 10:10 [Bug rtl-optimization/30761] New: [4.3 regression] Error: unsupported relocation against sfp schwab at suse dot de
2007-02-11 10:31 ` [Bug rtl-optimization/30761] [4.1/4.2/4.3 " pinskia at gcc dot gnu dot org
2007-02-11 10:48 ` pinskia at gcc dot gnu dot org
@ 2007-02-11 19:12 ` pinskia at gcc dot gnu dot org
2007-02-14 9:23 ` mmitchel at gcc dot gnu dot org
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From: pinskia at gcc dot gnu dot org @ 2007-02-11 19:12 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from pinskia at gcc dot gnu dot org 2007-02-11 19:12 -------
> This is caused by the lower-subreg patch
Exposed by, not caused by in this case. It exposed an issue with reload and
register elimination which was originally exposed by Jakub's patch. I was able
to reproduce the problem on a heavely modified version of 4.1.1 so I know the
bug is there also.
See the patch at: http://gcc.gnu.org/ml/gcc-patches/2006-12/msg00992.html
Which should fix the problem.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Component|rtl-optimization |middle-end
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2007-02-11 19:12:13
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761
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` (2 preceding siblings ...)
2007-02-11 19:12 ` [Bug middle-end/30761] " pinskia at gcc dot gnu dot org
@ 2007-02-14 9:23 ` mmitchel at gcc dot gnu dot org
2007-02-19 21:07 ` mmitchel at gcc dot gnu dot org
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From: mmitchel at gcc dot gnu dot org @ 2007-02-14 9:23 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.1.2 |4.1.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761
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2007-02-11 10:10 [Bug rtl-optimization/30761] New: [4.3 regression] Error: unsupported relocation against sfp schwab at suse dot de
` (3 preceding siblings ...)
2007-02-14 9:23 ` mmitchel at gcc dot gnu dot org
@ 2007-02-19 21:07 ` mmitchel at gcc dot gnu dot org
2007-02-21 15:05 ` uweigand at gcc dot gnu dot org
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From: mmitchel at gcc dot gnu dot org @ 2007-02-19 21:07 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761
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2007-02-11 10:10 [Bug rtl-optimization/30761] New: [4.3 regression] Error: unsupported relocation against sfp schwab at suse dot de
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2007-02-19 21:07 ` mmitchel at gcc dot gnu dot org
@ 2007-02-21 15:05 ` uweigand at gcc dot gnu dot org
2007-03-12 18:46 ` mmitchel at gcc dot gnu dot org
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From: uweigand at gcc dot gnu dot org @ 2007-02-21 15:05 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from uweigand at gcc dot gnu dot org 2007-02-21 15:05 -------
Subject: Bug 30761
Author: uweigand
Date: Wed Feb 21 15:05:01 2007
New Revision: 122199
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=122199
Log:
PR middle-end/30761
* reload1.c (eliminate_regs_in_insn): In the single_set special
case, attempt to re-recognize the insn before falling back to
having reload fix it up.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/reload1.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761
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2007-02-11 10:10 [Bug rtl-optimization/30761] New: [4.3 regression] Error: unsupported relocation against sfp schwab at suse dot de
` (5 preceding siblings ...)
2007-02-21 15:05 ` uweigand at gcc dot gnu dot org
@ 2007-03-12 18:46 ` mmitchel at gcc dot gnu dot org
2007-03-12 19:35 ` [Bug middle-end/30761] [4.1/4.2 " uweigand at gcc dot gnu dot org
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From: mmitchel at gcc dot gnu dot org @ 2007-03-12 18:46 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from mmitchel at gcc dot gnu dot org 2007-03-12 18:45 -------
Ulrich --
Did your patch fix this PR on mainline? Is a backport to 4.1/4.2 possible?
Thanks,
-- Mark
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |uweigand at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761
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2007-02-11 10:10 [Bug rtl-optimization/30761] New: [4.3 regression] Error: unsupported relocation against sfp schwab at suse dot de
` (6 preceding siblings ...)
2007-03-12 18:46 ` mmitchel at gcc dot gnu dot org
@ 2007-03-12 19:35 ` uweigand at gcc dot gnu dot org
2007-03-12 20:19 ` pinskia at gcc dot gnu dot org
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From: uweigand at gcc dot gnu dot org @ 2007-03-12 19:35 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from uweigand at gcc dot gnu dot org 2007-03-12 19:34 -------
I haven't verified that this problem is fixed -- the patch was originally
intended to fix another bug uncovered by Peter Bergner, and I just added
this PR number to the check-in due to Andrew's comment #3 on this bug.
Andrew, have you verified that the problem is fixed now?
I could backport the reload1.c change to 4.1/4.2 -- I haven't done so as
there's always some risk associated with such backports, and it appeared
from this bugzilla record that the bug was exposed only with a 4.3 change
anyway. Was this impression mistaken?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761
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` (7 preceding siblings ...)
2007-03-12 19:35 ` [Bug middle-end/30761] [4.1/4.2 " uweigand at gcc dot gnu dot org
@ 2007-03-12 20:19 ` pinskia at gcc dot gnu dot org
2007-04-24 21:46 ` mmitchel at gcc dot gnu dot org
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From: pinskia at gcc dot gnu dot org @ 2007-03-12 20:19 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from pinskia at gcc dot gnu dot org 2007-03-12 20:19 -------
> Andrew, have you verified that the problem is fixed now?
Yes the patch fixed the problem for me.
>Was this impression mistaken?
Yes but in my own testing of a private tree of GCC 4.1.1 modifed for the PS3
game OS ABI, I found this bug happening there too.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761
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2007-02-11 10:10 [Bug rtl-optimization/30761] New: [4.3 regression] Error: unsupported relocation against sfp schwab at suse dot de
` (8 preceding siblings ...)
2007-03-12 20:19 ` pinskia at gcc dot gnu dot org
@ 2007-04-24 21:46 ` mmitchel at gcc dot gnu dot org
2007-04-26 21:10 ` uweigand at gcc dot gnu dot org
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From: mmitchel at gcc dot gnu dot org @ 2007-04-24 21:46 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from mmitchel at gcc dot gnu dot org 2007-04-24 22:46 -------
Ulrich, in response to your question in Comment #6, yes, this bug appears in
4.1 and 4.2, not just in 4.3. So, if you think it's safe to backport the
reload patch, it would be nice to have the fix there as well.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761
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2007-02-11 10:10 [Bug rtl-optimization/30761] New: [4.3 regression] Error: unsupported relocation against sfp schwab at suse dot de
` (9 preceding siblings ...)
2007-04-24 21:46 ` mmitchel at gcc dot gnu dot org
@ 2007-04-26 21:10 ` uweigand at gcc dot gnu dot org
2007-04-27 13:59 ` uweigand at gcc dot gnu dot org
2007-04-27 14:03 ` uweigand at gcc dot gnu dot org
12 siblings, 0 replies; 14+ messages in thread
From: uweigand at gcc dot gnu dot org @ 2007-04-26 21:10 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from uweigand at gcc dot gnu dot org 2007-04-26 22:10 -------
Subject: Bug 30761
Author: uweigand
Date: Thu Apr 26 22:10:09 2007
New Revision: 124199
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=124199
Log:
PR middle-end/30761
* reload1.c (eliminate_regs_in_insn): In the single_set special
case, attempt to re-recognize the insn before falling back to
having reload fix it up.
Modified:
branches/gcc-4_2-branch/gcc/ChangeLog
branches/gcc-4_2-branch/gcc/reload1.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761
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2007-02-11 10:10 [Bug rtl-optimization/30761] New: [4.3 regression] Error: unsupported relocation against sfp schwab at suse dot de
` (10 preceding siblings ...)
2007-04-26 21:10 ` uweigand at gcc dot gnu dot org
@ 2007-04-27 13:59 ` uweigand at gcc dot gnu dot org
2007-04-27 14:03 ` uweigand at gcc dot gnu dot org
12 siblings, 0 replies; 14+ messages in thread
From: uweigand at gcc dot gnu dot org @ 2007-04-27 13:59 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from uweigand at gcc dot gnu dot org 2007-04-27 14:59 -------
Subject: Bug 30761
Author: uweigand
Date: Fri Apr 27 14:59:21 2007
New Revision: 124219
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=124219
Log:
PR middle-end/30761
* reload1.c (eliminate_regs_in_insn): In the single_set special
case, attempt to re-recognize the insn before falling back to
having reload fix it up.
Modified:
branches/gcc-4_1-branch/gcc/ChangeLog
branches/gcc-4_1-branch/gcc/reload1.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761
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2007-02-11 10:10 [Bug rtl-optimization/30761] New: [4.3 regression] Error: unsupported relocation against sfp schwab at suse dot de
` (11 preceding siblings ...)
2007-04-27 13:59 ` uweigand at gcc dot gnu dot org
@ 2007-04-27 14:03 ` uweigand at gcc dot gnu dot org
12 siblings, 0 replies; 14+ messages in thread
From: uweigand at gcc dot gnu dot org @ 2007-04-27 14:03 UTC (permalink / raw)
To: gcc-bugs
------- Comment #11 from uweigand at gcc dot gnu dot org 2007-04-27 15:03 -------
(In reply to comment #8)
> Ulrich, in response to your question in Comment #6, yes, this bug appears in
> 4.1 and 4.2, not just in 4.3. So, if you think it's safe to backport the
> reload patch, it would be nice to have the fix there as well.
I've back-ported the fix to 4.2 and 4.1 now.
--
uweigand at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761
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