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rguenth at gcc dot gnu dot org changed:
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CC||rguenth at gcc dot gnu dot
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--- Comment #1 from hjl dot tools at gmail dot com 2009-01-18 17:16 ---
It is caused by revision 142040:
http://gcc.gnu.org/ml/gcc-cvs/2008-11/msg00541.html
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hjl dot tools at gmail dot com changed:
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--- Comment #2 from hjl dot tools at gmail dot com 2009-01-18 17:19 ---
(In reply to comment #1)
It is caused by revision 142040:
http://gcc.gnu.org/ml/gcc-cvs/2008-11/msg00541.html
The patch is at
http://gcc.gnu.org/ml/gcc-patches/2008-11/msg01040.html
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--- Comment #3 from rguenther at suse dot de 2009-01-18 17:21 ---
Subject: Re: [4.3 Regression] 464.h264ref in SPEC
CPU 2006 miscompiled
On Sun, 18 Jan 2009, hjl dot tools at gmail dot com wrote:
--- Comment #2 from hjl dot tools at gmail dot com 2009-01-18 17:19
---
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rguenth at gcc dot gnu dot org changed:
What|Removed |Added
Target Milestone|--- |4.3.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38905
--- Comment #4 from hjl dot tools at gmail dot com 2009-01-18 17:39 ---
(In reply to comment #3)
Can you check if it is fixed by -fno-strict-aliasing and/or
--param max-fields-for-field-sensitive=0? I suspect we need to
backport some PTA fixes :/
Either -fno-strict-aliasing or
--- Comment #5 from rguenther at suse dot de 2009-01-18 17:42 ---
Subject: Re: [4.3 Regression] 464.h264ref in SPEC
CPU 2006 miscompiled
On Sun, 18 Jan 2009, hjl dot tools at gmail dot com wrote:
--- Comment #4 from hjl dot tools at gmail dot com 2009-01-18 17:39
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--- Comment #6 from hjl dot tools at gmail dot com 2009-01-18 19:09 ---
(In reply to comment #5)
I would guess that
2008-11-25 Daniel Berlin dber...@dberlin.org
Richard Guenther rguent...@suse.de
PR tree-optimization/37869
*
--- Comment #7 from rguenth at gcc dot gnu dot org 2009-01-18 19:34 ---
It works for me with -O2 -ffast-math and the openSUSE 11.1 compiler which also
has this patch applied (but is based on rev. 141291). I'm trying with plain
4.3 branch now - any special configure options used?
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--- Comment #8 from hjl dot tools at gmail dot com 2009-01-18 19:52 ---
(In reply to comment #7)
It works for me with -O2 -ffast-math and the openSUSE 11.1 compiler which also
has this patch applied (but is based on rev. 141291). I'm trying with plain
4.3 branch now - any special
--- Comment #9 from rguenth at gcc dot gnu dot org 2009-01-18 20:36 ---
Created an attachment (id=17136)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17136action=view)
first alias patch
I can reproduce this with the plain branch. Attached is the first extra alias
patch in the
--- Comment #10 from rguenth at gcc dot gnu dot org 2009-01-18 20:36
---
Created an attachment (id=17137)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17137action=view)
second alias patch
Second alias related patch in the openSUSE compiler.
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--- Comment #11 from rguenth at gcc dot gnu dot org 2009-01-18 20:52
---
The testcase from PR36765 fails on the 4.3 branch. Does it fail without the
patch for PR37868?
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38905
--- Comment #12 from rguenth at gcc dot gnu dot org 2009-01-18 20:56
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I'm testing the patch for PR36765 - that was a h264ref miscompile on the trunk.
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rguenth at gcc dot gnu dot org changed:
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--- Comment #13 from hjl dot tools at gmail dot com 2009-01-18 21:05
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Patches in comment #9 plus comment #10 fix 464.h264ref with test
input. I am running with reference input on both ia32 and x86-64.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38905
--- Comment #14 from hjl dot tools at gmail dot com 2009-01-18 21:11
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(In reply to comment #11)
The testcase from PR36765 fails on the 4.3 branch. Does it fail without the
patch for PR37868?
gcc.c-torture/execute/pr36765.c works with -O2 at revision 142026 and
fails at
--- Comment #15 from rguenth at gcc dot gnu dot org 2009-01-18 21:22
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I have verified that the patch for PR36765 fixes h264ref on the branch.
*** This bug has been marked as a duplicate of 36765 ***
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rguenth at gcc dot gnu dot org changed:
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