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Date: Thu, 20 Dec 2012 15:05:00 -0000
From: Jan Hubicka <hubicka@ucw.cz>
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: "Melik-adamyan, Areg" <areg.melik-adamyan@intel.com>,	Jan Hubicka <hubicka@ucw.cz>, Jakub Jelinek <jakub@redhat.com>,	Xinliang David Li <davidxl@google.com>,	GCC Patches <gcc-patches@gcc.gnu.org>,	Teresa Johnson <tejohnson@google.com>
Subject: Re: [PATCH i386]: Enable push/pop in pro/epilogue for modern CPUs
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> Hi Areg,
> 
> Did you mean inlined memcpy/memset are as fast as
> the ones in libc.so on both ia32 and Intel64?

I would be interested in output of the stringop script.
> 
> Please keep in mind that memcpy/memset in libc.a
> may not be optimized.  You must not use -static for
> linking.

In my setup I use dynamic linking...
(this is quite anoying property in general - people tend to use --static for
performance critical binaries to save expenses of PIC.  It would be really cool
to have way to call proper stringops based on -march switch....)

Honza
> 
> -- 
> H.J.