http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37360
--- Comment #23 from Jie Zhang jiez at gcc dot gnu.org 2010-10-23 00:38:16
UTC ---
Author: jiez
Date: Sat Oct 23 00:38:13 2010
New Revision: 165880
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=165880
Log:
PR rtl-optimization/37360
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37360
Jie Zhang jiez at gcc dot gnu.org changed:
What|Removed |Added
CC||jiez at gcc dot
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37360
--- Comment #21 from Jie Zhang jiez at gcc dot gnu.org 2010-10-19 16:58:58
UTC ---
Another way to fix this bug:
http://gcc.gnu.org/ml/gcc/2010-10/msg00281.html
David, are you still interested to try this patch on sb1?
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37360
--- Comment #22 from David Daney daney at gcc dot gnu.org 2010-10-19 17:38:32
UTC ---
I no longer have access to an SB1. But you should be able to run the test case
on a cross compiler to see how it is affected by any patch.
--
abel at gcc dot gnu dot org changed:
What|Removed |Added
CC|abel at ispras dot ru |abel at gcc dot gnu dot org
AssignedTo|unassigned at gcc dot
--- Comment #18 from abel at gcc dot gnu dot org 2008-09-09 14:21 ---
Subject: Bug 37360
Author: abel
Date: Tue Sep 9 14:19:31 2008
New Revision: 140151
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=140151
Log:
PR rtl-optimization/37360
* haifa-sched.c
--- Comment #19 from abel at gcc dot gnu dot org 2008-09-09 14:35 ---
Fixed in 140151.
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abel at gcc dot gnu dot org changed:
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--- Comment #17 from abel at ispras dot ru 2008-09-08 07:19 ---
(In reply to comment #16)
Could you explain why max_issue() should do anything
when more_issue = 0? I'd have expected it to early-out.
But the whole point of the patch is that we _can_ actually issue more insns
even
--- Comment #16 from rsandifo at gcc dot gnu dot org 2008-09-06 11:23
---
Could you explain why max_issue() should do anything
when more_issue = 0? I'd have expected it to early-out.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37360
--- Comment #11 from abel at ispras dot ru 2008-09-05 09:16 ---
I was unable to trigger the assert on the given testcase even with the
cross-compiler configured exactly like the one in the bug report. However, I
was able to reproduce the ICE on a longer plain C test case.
The assert
--- Comment #12 from rguenth at gcc dot gnu dot org 2008-09-05 09:37
---
I think it's reasonable to disable the assert with a comment for now and
file a separate bugreport for the targets who lie about their issue rate.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37360
--- Comment #13 from abel at ispras dot ru 2008-09-05 10:32 ---
(In reply to comment #12)
I think it's reasonable to disable the assert with a comment for now and
file a separate bugreport for the targets who lie about their issue rate.
Ok, with the below patch my failing test case
--- Comment #14 from abel at ispras dot ru 2008-09-05 10:33 ---
Created an attachment (id=16231)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16231action=view)
Proposed patch
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37360
--- Comment #15 from daney at gcc dot gnu dot org 2008-09-05 18:29 ---
Thanks for the patch.
With the patch applied to the trunk my bootstrap has made it into stage 2,
indicating that it has corrected the problem.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37360
--- Comment #1 from rguenth at gcc dot gnu dot org 2008-09-04 09:44 ---
Andrey, this is likely due to the selective scheduler merge. Can you
investigate or delegate?
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rguenth at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #2 from abel at ispras dot ru 2008-09-04 12:06 ---
Andrey, this is likely due to the selective scheduler merge. Can you
investigate or delegate?
We couldn't reproduce this with a cross from x86_64. Also, Adam Nemet fixed
the problem with MIPS/sel-sched bootstrap
--- Comment #3 from abel at ispras dot ru 2008-09-04 14:34 ---
This does not fail on a cross for us with 139918.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37360
--- Comment #4 from daney at gcc dot gnu dot org 2008-09-04 14:49 ---
You will note that I configured with --with-arch=sb1.
This in turn causes cc1 to be invoked with -march=sb1
I will attempt to test with a cross build.
My bootstrap gcc is: gcc (GCC) 4.4.0 20080223 (experimental)
--- Comment #5 from hjl dot tools at gmail dot com 2008-09-04 14:58 ---
I would suggest to try ira-merge branch to rule out any IRA related
problems.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37360
--- Comment #6 from daney at gcc dot gnu dot org 2008-09-04 16:12 ---
I get the same ICE using gcc (Debian 4.3.1-8) 4.3.1 as the bootstrap compiler,
so I am going with the theory that the bootstrap compiler is not the cause of
this problem.
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--- Comment #7 from daney at gcc dot gnu dot org 2008-09-04 17:17 ---
The problem is present in 139918
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37360
--- Comment #8 from daney at gcc dot gnu dot org 2008-09-04 17:39 ---
It is reproducible in a cross compiler as well.
This is my command line:
/home/daney/gccsvn/mipsel-trunk/gcc/cc1 -fpreprocessed j.i -quiet -march=sb1
-O2 -o j.s
Changing to -march={mips32,mips32r2,r5000} fixes the
--- Comment #9 from daney at gcc dot gnu dot org 2008-09-04 22:48 ---
(In reply to comment #2)
Andrey, this is likely due to the selective scheduler merge. Can you
investigate or delegate?
We couldn't reproduce this with a cross from x86_64. Also, Adam Nemet fixed
the problem
--- Comment #10 from hjl dot tools at gmail dot com 2008-09-05 02:21
---
This may be related to PR 37378 and PR 37377.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37360
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pinskia at gcc dot gnu dot org changed:
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CC||pinskia at gcc dot gnu dot
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