--- Comment #2 from xinliangli at gmail dot com 2008-03-12 06:24 ---
(In reply to comment #1)
> This is by design, you need to use the same options for -fprofile-use as you
> do
> for -fprofile-generate.
>
This model won't work well when -O4 (ipo) is in place. If instrumentation and
a
--- Comment #3 from pinskia at gcc dot gnu dot org 2008-03-12 06:28 ---
(In reply to comment #2)
> This model won't work well when -O4 (ipo) is in place. If instrumentation and
> annotation happens at the same phase in the compiler pipeline, I don't see a
> reason why such restriction is
--- Comment #6 from uros at gcc dot gnu dot org 2008-03-12 06:37 ---
Subject: Bug 35540
Author: uros
Date: Wed Mar 12 06:37:10 2008
New Revision: 133135
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133135
Log:
PR target/35540
* config/i386/i386.md (paritysi2, p
--- Comment #4 from xinliangli at gmail dot com 2008-03-12 06:40 ---
(In reply to comment #3)
> (In reply to comment #2)
> > This model won't work well when -O4 (ipo) is in place. If instrumentation
> > and
> > annotation happens at the same phase in the compiler pipeline, I don't see a
--- Comment #7 from ubizjak at gmail dot com 2008-03-12 06:42 ---
Fixed.
--
ubizjak at gmail dot com changed:
What|Removed |Added
Status|ASSIGNED
--
ubizjak at gmail dot com changed:
What|Removed |Added
Target Milestone|--- |4.3.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35540
--- Comment #5 from pinskia at gcc dot gnu dot org 2008-03-12 06:50 ---
For reference see:
http://gcc.gnu.org/ml/gcc-patches/2007-01/msg01205.html
http://gcc.gnu.org/ml/gcc-patches/2005-03/msg00200.html
http://gcc.gnu.org/ml/gcc/2005-12/msg00215.html
And most likely a couple others too.
--- Comment #6 from pinskia at gcc dot gnu dot org 2008-03-12 06:52 ---
I should note that when GCC emits the annotations for profiling, it actually
emits the counter updates and all and other optimizations don't need to know
about them except if they want to know the information about w
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