https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
Segher Boessenkool changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
--- Comment #23 from Alexandre Oliva aoliva at gcc dot gnu.org 2012-03-25
11:55:30 UTC ---
I've just verified that the score problem is indeed port-specific, and needs
lookinginto by the port maintainer, but the problem exposed in m68k is
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
--- Comment #21 from Mikael Pettersson mikpe at it dot uu.se 2012-02-18
15:33:32 UTC ---
(In reply to comment #20)
Just a reminder that the bug (which Mikael kindly begun to analyse) still
happens on the 4.6 branch and, as he said it, is most
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
--- Comment #22 from Thorsten Glaser tg at mirbsd dot org 2012-02-18 23:31:40
UTC ---
ok, moved it to #52306
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
--- Comment #20 from Thorsten Glaser tg at mirbsd dot org 2012-02-07 21:24:33
UTC ---
Just a reminder that the bug (which Mikael kindly begun to analyse) still
happens on the 4.6 branch and, as he said it, is most likely only masked on
4.7.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
--- Comment #17 from Mikael Pettersson mikpe at it dot uu.se 2011-12-20
09:14:03 UTC ---
Created attachment 26150
-- http://gcc.gnu.org/bugzilla/attachment.cgi?id=26150
reduced second test case
Reduced test case, very sensitive to control flow
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
--- Comment #18 from Mikael Pettersson mikpe at it dot uu.se 2011-12-20
15:14:41 UTC ---
The second test case started failing with r170199:
http://gcc.gnu.org/ml/gcc-cvs/2011-02/msg00744.html
This is the reversal of the same change that was
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
Mikael Pettersson mikpe at it dot uu.se changed:
What|Removed |Added
CC||aoliva at gcc
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
--- Comment #16 from Mikael Pettersson mikpe at it dot uu.se 2011-12-20
00:12:19 UTC ---
The new test case stopped ICE:ing on trunk starting with r17:
http://gcc.gnu.org/ml/gcc-cvs/2011-03/msg00533.html. However that's just a
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
--- Comment #11 from Thorsten Glaser tg at mirbsd dot org 2011-12-18 21:52:43
UTC ---
Created attachment 26129
-- http://gcc.gnu.org/bugzilla/attachment.cgi?id=26129
preprocessed source for another occurence
I’m also getting one of these. Not
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
Thorsten Glaser tg at mirbsd dot org changed:
What|Removed |Added
CC||tg at mirbsd dot
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
--- Comment #13 from Thorsten Glaser tg at mirbsd dot org 2011-12-18 22:10:13
UTC ---
This is a regression: this works
gcc-4.4 -std=gnu99 -DHAVE_CONFIG_H -I. -I/tmp/buildd/libvirt-0.9.8/./src -I..
-I/tmp/buildd/libvirt-0.9.8/./gnulib/lib
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
Mikael Pettersson mikpe at it dot uu.se changed:
What|Removed |Added
CC||mikpe at it dot
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
--- Comment #15 from Thorsten Glaser tg at mirbsd dot org 2011-12-19 00:28:18
UTC ---
Hi Mikael,
thanks for caring, you seem to be everywhere ;-)
Yes, it is reproducible with the cross-compilers I build using the standard
procedure from
--- Comment #9 from jakub at gcc dot gnu dot org 2010-07-23 11:48 ---
*** Bug 45040 has been marked as a duplicate of this bug. ***
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
--- Comment #10 from segher at gcc dot gnu dot org 2010-07-23 11:57 ---
Liqin, could you look at this please?
--
segher at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #8 from law at redhat dot com 2010-03-22 16:12 ---
I'd tend to agree with comment #7 -- multiple side effects on a single register
in a single insn like this seems like a huge rats nest of problems.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
--- Comment #2 from aldyh at gcc dot gnu dot org 2010-03-19 15:48 ---
Created an attachment (id=20141)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20141action=view)
reduced testcase
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43437
--- Comment #3 from aldyh at gcc dot gnu dot org 2010-03-19 15:58 ---
Reproduce with: ./cc1 -g -O a.i -mscore3
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aldyh at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #4 from jakub at gcc dot gnu dot org 2010-03-19 17:35 ---
Ah, I see. We have
(insn/f 93 8 94 2 pr43437.c:4 (parallel [
(set/f (mem:SI (pre_dec:SI (reg/f:SI 0 r0)) [0 S4 A32])
(reg:SI 12 r12))
(set/f (mem:SI (pre_dec:SI (reg/f:SI 0
--- Comment #5 from aldyh at gcc dot gnu dot org 2010-03-19 18:41 ---
Err, I was just going to say that. Curse you Jakub. Let me know when you're
looking at something so we don't duplicate efforts. Wait, am I not supposed to
say curse on a PR? Oh well.
--
--- Comment #6 from jakub at gcc dot gnu dot org 2010-03-19 20:37 ---
Created an attachment (id=20144)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20144action=view)
gcc45-pr43437.patch
Possible patch. Except that note_uses (and note_stores) walk parallels from
end to start, so
--- Comment #7 from jakub at gcc dot gnu dot org 2010-03-19 21:14 ---
I really think it is score backend that should be fixed here.
Say the store multiple should be represented with
(insn/f 93 8 94 2 pr43437.c:4 (parallel [
(set/f (mem:SI (plus:SI (reg/f:SI 0 r0) (const_int
--- Comment #1 from segher at gcc dot gnu dot org 2010-03-19 02:25 ---
Caused by / exposed by SVN r157476
Author: jakub ja...@138bc75d-0d04-0410-961f-82ee72b054a4
Date: Tue Mar 16 10:50:42 2010 +
PR debug/43051
PR debug/43092
...
--
segher at gcc dot gnu dot
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