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Re: PATCH: optimized expf for x86_32

Hello,

Code was replaced to  sysdeps/i386/i686/multiarch. New patch is attached.
My performance data was about  { expf (which uses __ieee754_expf),
__ieee754_expf } not about  { __expf_finite, __ieee754_expf }. Sorry
for misprint in names at my previous letter.
We didn't check __expf_finite but believe it becomes faster as well.


2012-04-05  Liubov Dmitrieva  <liubov.dmitrieva@gmail.com>

	* sysdeps/i386/i686/multiarch/Makefile: Add
	(libm-sysdep_routines): e_expf-sse2 e_expf_finite.sse2 init-arch
	* sysdeps/i386/i686/multiarch/e_expf.S: New file.
	* sysdeps/i386/i686/multiarch/e_expf-sse2.S: New file.
	* sysdeps/i386/i686/multiarch/e_expf_finite-sse2.S: New file.

--
Liubov Dmitrieva
Intel Corporation


2012/4/3 Ulrich Drepper <drepper@gmail.com>:
> On Mon, Apr 2, 2012 at 10:43, H.J. Lu <hjl.tools@gmail.com> wrote:
>> I think all i386 multiarch codes should be under
>> sysdeps/i386/i686.
>
> Indeed. ?None of this applies to pre-i686 hardware.

Attachment: expf_x86_32.patch
Description: Binary data

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