--- Comment #1 from rguenth at gcc dot gnu dot org 2008-01-08 10:21 ---
No idea if Uros has access to spec, so maybe you can quote the snippet where
rsqrtss is used from the assembly of 481.wrf?
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34709
--- Comment #2 from ubizjak at gmail dot com 2008-01-08 11:23 ---
(In reply to comment #1)
No idea if Uros has access to spec, so maybe you can quote the snippet where
rsqrtss is used from the assembly of 481.wrf?
Unfortunatelly no... does this patch help:
Index: i386.c
--- Comment #3 from hjl at lucon dot org 2008-01-08 18:01 ---
(In reply to comment #2)
(In reply to comment #1)
No idea if Uros has access to spec, so maybe you can quote the snippet where
rsqrtss is used from the assembly of 481.wrf?
Unfortunatelly no... does this patch help:
--- Comment #4 from hjl at lucon dot org 2008-01-08 18:24 ---
(In reply to comment #2)
BTW: What happens if -mrecip is used to compile 481.wrf?
-O2 -mrecip -ffast-math miscompiles 481.wrf on Linux/Intel64.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34709
--- Comment #5 from ubizjak at gmail dot com 2008-01-08 18:36 ---
(In reply to comment #3)
It works.
Ok, then we have the same issue with rsqrtss as with rcpss in PR target/34702.
I'll disable -mrecip as default for -ffast-math.
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ubizjak at gmail dot com changed:
--- Comment #6 from uros at gcc dot gnu dot org 2008-01-08 19:23 ---
Subject: Bug 34709
Author: uros
Date: Tue Jan 8 19:22:46 2008
New Revision: 131403
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=131403
Log:
PR target/34709
Revert:
2008-01-05 Uros
--- Comment #7 from ubizjak at gmail dot com 2008-01-08 19:27 ---
Fixed.
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ubizjak at gmail dot com changed:
What|Removed |Added
Status|ASSIGNED
