--- Comment #16 from reichelt at gcc dot gnu dot org 2010-05-25 08:41
---
*** Bug 44264 has been marked as a duplicate of this bug. ***
--
reichelt at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #7 from ttsiodras at gmail dot com 2010-05-24 07:24 ---
From my two tests in FreeBSD and Arch Linux, it appears that the -flto bug
that is triggered on my renderer, has occured with the 20100520 (prerelease)
commits.
I hope this helps
Is there anything else I can
--- Comment #8 from rguenth at gcc dot gnu dot org 2010-05-24 12:18 ---
(In reply to comment #6)
Well, I added nostdlib and removed all libraries from the cmd line, but
still:
bash$ g++ -r -nostdlib -O3 -g -Wall -Wextra -fomit-frame-pointer -ffast-math
-funsafe-math-optimizations
--- Comment #9 from rguenth at gcc dot gnu dot org 2010-05-24 12:24 ---
Btw, it reccurs to me that the issue will be fixed by
http://gcc.gnu.org/viewcvs/trunk/gcc/lto/lto.c?r1=158729r2=158728pathrev=158729
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44256
--- Comment #10 from rguenth at gcc dot gnu dot org 2010-05-24 12:34
---
Subject: Bug 44256
Author: rguenth
Date: Mon May 24 12:34:34 2010
New Revision: 159779
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=159779
Log:
2010-05-24 Richard Guenther rguent...@suse.de
PR
--- Comment #11 from rguenth at gcc dot gnu dot org 2010-05-24 12:35
---
The next snapshot will pick up this fix.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44256
--- Comment #12 from ttsiodras at gmail dot com 2010-05-24 13:41 ---
I am at work, so I did a fresh compilation of GCC4.5 from the 20050520
snapshot under my Debian stable using:
../configure --prefix=/opt/gcc45 --enable-languages=c,c++ --enable-lto
The bug still happens, even if I
--- Comment #13 from ttsiodras at gmail dot com 2010-05-24 13:44 ---
I meant 20100520, obviously, not 20050520 (no flto back then! :-)
Anyway, if I understood correctly, I should wait for the next snapshot... ETA?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44256
--- Comment #14 from ttsiodras at gmail dot com 2010-05-24 13:47 ---
And now that we see that it happens even with one object file,
here is the preprocessed (.ii) for the code behind this object file:
http://users.softlab.ntua.gr/~ttsiod/renderer.ii.gz
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--- Comment #15 from rguenth at gcc dot gnu dot org 2010-05-24 18:02
---
Thanks. With the preprocessed source I can confirm the crash and also confirm
that the fix I just committed fixes the crash.
Snapshots are generated every week, so the next is due on May 29th.
--
rguenth at
--- Comment #1 from steven at gcc dot gnu dot org 2010-05-23 18:13 ---
Did you build with --enable-checking=release?
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44256
--- Comment #2 from rguenth at gcc dot gnu dot org 2010-05-23 20:05 ---
Can you add -r to the linker line and bisect the object files needed to produce
the ICE and then attach preprocessed source of them?
Thanks.
--
rguenth at gcc dot gnu dot org changed:
What
--- Comment #3 from ttsiodras at gmail dot com 2010-05-23 20:09 ---
To Steven:
I am assuming you are asking about the building of GCC - I did it through the
ports system of FreeBSD, using the latest update of the gcc45 port.
Additionally, I just did an update in my Arch Linux, which
--- Comment #4 from ttsiodras at gmail dot com 2010-05-23 20:11 ---
To Richard:
Under my Arch Linux, the linker cmd (that triggers the bug) is:
bash$ g++ -O3 -g -Wall -Wextra -fomit-frame-pointer -ffast-math
-funsafe-math-optimizations -mtune=native -flto -msse -mrecip -mfpmath=sse
--- Comment #5 from rguenth at gcc dot gnu dot org 2010-05-23 20:36 ---
(In reply to comment #4)
To Richard:
Under my Arch Linux, the linker cmd (that triggers the bug) is:
bash$ g++ -O3 -g -Wall -Wextra -fomit-frame-pointer -ffast-math
-funsafe-math-optimizations -mtune=native
--- Comment #6 from ttsiodras at gmail dot com 2010-05-23 20:48 ---
Well, I added nostdlib and removed all libraries from the cmd line, but
still:
bash$ g++ -r -nostdlib -O3 -g -Wall -Wextra -fomit-frame-pointer -ffast-math
-funsafe-math-optimizations -mtune=native -flto -msse -mrecip
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