* [Bug rtl-optimization/15023] -frename-registers is buggy and slow
[not found] <bug-15023-7849@http.gcc.gnu.org/bugzilla/>
@ 2005-10-24 17:58 ` dalej at gcc dot gnu dot org
2005-10-24 18:03 ` pinskia at gcc dot gnu dot org
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From: dalej at gcc dot gnu dot org @ 2005-10-24 17:58 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from dalej at gcc dot gnu dot org 2005-10-24 17:58 -------
Another bug in renaming just showed up on darwin rs6000. When renaming changes
a register in the RTL, it does not make the corresponding change in attached
FRAME_RELATED notes. This leads to inaccurate Dwarf exception tables and
runtime failures in unwinding after a throw. Don't know how widespread this
would be; other rs6000 targets for sure.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15023
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[not found] <bug-15023-7849@http.gcc.gnu.org/bugzilla/>
2005-10-24 17:58 ` [Bug rtl-optimization/15023] -frename-registers is buggy and slow dalej at gcc dot gnu dot org
@ 2005-10-24 18:03 ` pinskia at gcc dot gnu dot org
2006-04-24 22:29 ` steven at gcc dot gnu dot org
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From: pinskia at gcc dot gnu dot org @ 2005-10-24 18:03 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from pinskia at gcc dot gnu dot org 2005-10-24 18:03 -------
(In reply to comment #9)
>Don't know how widespread this would be; other rs6000 targets for sure.
Yes this shows up as PR 23392 with the GNU runtime and objc exceptions.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15023
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[not found] <bug-15023-7849@http.gcc.gnu.org/bugzilla/>
2005-10-24 17:58 ` [Bug rtl-optimization/15023] -frename-registers is buggy and slow dalej at gcc dot gnu dot org
2005-10-24 18:03 ` pinskia at gcc dot gnu dot org
@ 2006-04-24 22:29 ` steven at gcc dot gnu dot org
2006-08-15 18:19 ` pinskia at gcc dot gnu dot org
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From: steven at gcc dot gnu dot org @ 2006-04-24 22:29 UTC (permalink / raw)
To: gcc-bugs
------- Comment #11 from steven at gcc dot gnu dot org 2006-04-24 22:29 -------
Still an issue here??
--
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15023
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[not found] <bug-15023-7849@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2006-04-24 22:29 ` steven at gcc dot gnu dot org
@ 2006-08-15 18:19 ` pinskia at gcc dot gnu dot org
2007-02-03 16:20 ` [Bug rtl-optimization/15023] -frename-registers is slow steven at gcc dot gnu dot org
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From: pinskia at gcc dot gnu dot org @ 2006-08-15 18:19 UTC (permalink / raw)
To: gcc-bugs
------- Comment #12 from pinskia at gcc dot gnu dot org 2006-08-15 18:19 -------
(In reply to comment #11)
> Still an issue here??
I think the slowness still exist.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
Last reconfirmed|2006-01-21 03:10:27 |2006-08-15 18:19:08
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15023
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[not found] <bug-15023-7849@http.gcc.gnu.org/bugzilla/>
` (3 preceding siblings ...)
2006-08-15 18:19 ` pinskia at gcc dot gnu dot org
@ 2007-02-03 16:20 ` steven at gcc dot gnu dot org
2007-04-25 5:26 ` ian at airs dot com
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From: steven at gcc dot gnu dot org @ 2007-02-03 16:20 UTC (permalink / raw)
To: gcc-bugs
------- Comment #13 from steven at gcc dot gnu dot org 2007-02-03 16:20 -------
Haven't seen any reports of wrong-code coming out of register renaming in a
while. Register renaming is enabled if loop unrolling / peeling is enabled. So
the test coverage of this pass is much better than it used to be. I think that
the wrong-code issue for this bug is fixed.
--
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|ice-on-valid-code |
Summary|-frename-registers is buggy |-frename-registers is slow
|and slow |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15023
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[not found] <bug-15023-7849@http.gcc.gnu.org/bugzilla/>
` (4 preceding siblings ...)
2007-02-03 16:20 ` [Bug rtl-optimization/15023] -frename-registers is slow steven at gcc dot gnu dot org
@ 2007-04-25 5:26 ` ian at airs dot com
2007-11-03 7:57 ` ebotcazou at gcc dot gnu dot org
` (3 subsequent siblings)
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From: ian at airs dot com @ 2007-04-25 5:26 UTC (permalink / raw)
To: gcc-bugs
------- Comment #14 from ian at airs dot com 2007-04-25 06:26 -------
-frename-registers should be rewritten to use the new DF framework when
dataflow branch is merged.
Lowering priority to P3. This is not high priority.
--
ian at airs dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P1 |P3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15023
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[not found] <bug-15023-7849@http.gcc.gnu.org/bugzilla/>
` (5 preceding siblings ...)
2007-04-25 5:26 ` ian at airs dot com
@ 2007-11-03 7:57 ` ebotcazou at gcc dot gnu dot org
2007-11-05 8:21 ` bonzini at gnu dot org
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From: ebotcazou at gcc dot gnu dot org @ 2007-11-03 7:57 UTC (permalink / raw)
To: gcc-bugs
------- Comment #15 from ebotcazou at gcc dot gnu dot org 2007-11-03 07:57 -------
Paolo, do you know what the status of this PR is? Ian said in comment #14 that
the pass should be rewritten to use the DF framework. Has this happened? TIA.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15023
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[not found] <bug-15023-7849@http.gcc.gnu.org/bugzilla/>
` (6 preceding siblings ...)
2007-11-03 7:57 ` ebotcazou at gcc dot gnu dot org
@ 2007-11-05 8:21 ` bonzini at gnu dot org
2008-12-22 8:20 ` jv244 at cam dot ac dot uk
2009-01-03 15:27 ` steven at gcc dot gnu dot org
9 siblings, 0 replies; 10+ messages in thread
From: bonzini at gnu dot org @ 2007-11-05 8:21 UTC (permalink / raw)
To: gcc-bugs
------- Comment #16 from bonzini at gnu dot org 2007-11-05 08:21 -------
No, but I don't think this should hold up marking this PR as fixed.
--
bonzini at gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15023
^ permalink raw reply [flat|nested] 10+ messages in thread* [Bug rtl-optimization/15023] -frename-registers is slow
[not found] <bug-15023-7849@http.gcc.gnu.org/bugzilla/>
` (7 preceding siblings ...)
2007-11-05 8:21 ` bonzini at gnu dot org
@ 2008-12-22 8:20 ` jv244 at cam dot ac dot uk
2009-01-03 15:27 ` steven at gcc dot gnu dot org
9 siblings, 0 replies; 10+ messages in thread
From: jv244 at cam dot ac dot uk @ 2008-12-22 8:20 UTC (permalink / raw)
To: gcc-bugs
------- Comment #17 from jv244 at cam dot ac dot uk 2008-12-22 08:18 -------
reopening as of PR38582 (where rename registers takes 13 hours to do its job).
--
jv244 at cam dot ac dot uk changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15023
^ permalink raw reply [flat|nested] 10+ messages in thread* [Bug rtl-optimization/15023] -frename-registers is slow
[not found] <bug-15023-7849@http.gcc.gnu.org/bugzilla/>
` (8 preceding siblings ...)
2008-12-22 8:20 ` jv244 at cam dot ac dot uk
@ 2009-01-03 15:27 ` steven at gcc dot gnu dot org
9 siblings, 0 replies; 10+ messages in thread
From: steven at gcc dot gnu dot org @ 2009-01-03 15:27 UTC (permalink / raw)
To: gcc-bugs
------- Comment #18 from steven at gcc dot gnu dot org 2009-01-03 15:24 -------
Closing this as a dup of bug 38582 because that bug has a test case.
*** This bug has been marked as a duplicate of 38582 ***
--
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15023
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