--- Comment #12 from abel at gcc dot gnu dot org 2010-08-24 08:57 ---
Subject: Bug 42245
Author: abel
Date: Tue Aug 24 08:57:18 2010
New Revision: 163504
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=163504
Log:
Backport from mainline:
2010-01-14 Andrey Belevantsev
--- Comment #9 from amonakov at gcc dot gnu dot org 2010-01-14 10:29
---
Subject: Bug 42245
Author: amonakov
Date: Thu Jan 14 10:28:47 2010
New Revision: 155890
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=155890
Log:
2010-01-14 Andrey Belevantsev a...@ispras.ru
--- Comment #10 from amonakov at gcc dot gnu dot org 2010-01-14 10:38
---
Subject: Bug 42245
Author: amonakov
Date: Thu Jan 14 10:38:14 2010
New Revision: 155891
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=155891
Log:
Add tests missing from previous commit.
PR
--- Comment #11 from amonakov at gcc dot gnu dot org 2010-01-14 10:41
---
Fixed by revision 155890
--
amonakov at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #7 from amonakov at gcc dot gnu dot org 2010-01-11 15:04
---
Our previous patch (http://gcc.gnu.org/ml/gcc-patches/2009-12/msg01215.html)
failed to correctly fix the problem, and the new testcase uncovers a flaw in
that implementation.
We 'forgot' to recompute topological
--- Comment #8 from janis at gcc dot gnu dot org 2010-01-11 22:10 ---
I bootstrapped on powerpc64-linux c,c++,fortran with the earlier big
selective-scheduling patch plus the patch in comment #7 of this PR and the
patch in comment #4 of PR42246. The resulting GCC gets no failures for
--- Comment #6 from janis at gcc dot gnu dot org 2010-01-06 18:44 ---
With the patch at http://gcc.gnu.org/ml/gcc-patches/2009-12/msg01209.html the
testcase in the submitter's description no longer fails, but there is other
code in 197.parser that gets the same ICE with the same
--- Comment #3 from abel at gcc dot gnu dot org 2009-12-28 12:06 ---
The patch mentioned by Alexander is not enough to fix the bug after applying
all other patches for sel-sched bugs. The actual problem is that when
redirecting an edge, the topological order of blocks in the currently
--- Comment #4 from steven at gcc dot gnu dot org 2009-12-28 12:34 ---
Re. comment #3 - do you have an example of when/how this can happen? Perhaps
you can add it to the comment.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42245
--- Comment #5 from amonakov at gcc dot gnu dot org 2009-12-28 14:23
---
(In reply to comment #4)
Re. comment #3 - do you have an example of when/how this can happen? Perhaps
you can add it to the comment.
Here, we are scheduling a loop that looks like this:
+---+
| 4
--- Comment #2 from amonakov at gcc dot gnu dot org 2009-12-04 18:00
---
(In reply to comment #0)
Janis,
Thank you for the testcase. This bug and PR42249 are fixed by Andrey's old
patch:
http://gcc.gnu.org/ml/gcc-patches/2008-09/msg01930.html
The patch in that message still
--- Comment #1 from rguenth at gcc dot gnu dot org 2009-12-02 12:04 ---
actually selective scheduling is new, so not a regression
--
rguenth at gcc dot gnu dot org changed:
What|Removed |Added
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