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PATCH: [x86_64] New optimized wcslen and strnlen

From: Dmitrieva Liubov <liubov dot dmitrieva at gmail dot com>
To: libc-alpha at sourceware dot org
Date: Thu, 20 Oct 2011 18:33:06 +0400
Subject: PATCH: [x86_64] New optimized wcslen and strnlen

Hello,

This patch contains optimized wcslen written in assembly codes for all
architectures and optimized strnlen for atom.

This patch improves perfomance by up to 4X for wcslen and by up to
2.5X for strnlen.

2011-10-20  Liubov Dmitrieva  <liubov.dmitrieva@gmail.com>

	* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add
	strnlen-sse2-no-bsf.
	Rename strlen-no-bsf to strlen-sse2-no-bsf.

	* sysdeps/x86_64/multiarch/strlen-no-bsf.S: Rename to
	* sysdeps/x86_64/multiarch/strlen-sse2-no-bsf.S:
	Add strnlen support.
	(USE_AS_STRNLEN): New macro.
	* sysdeps/x86_64/multiarch/strnlen-sse2-no-bsf.S: New file.

	* sysdeps/x86_64/multiarch/strcat-ssse3.S: Update.
	Rename strlen-no-bsf.S to strlen-sse2-no-bsf.S

	* sysdeps/x86_64/wcslen.S: New file.

--
Liubov Dmitrieva
Intel Corporation

Attachment: strnlen_wcslen_64.patch
Description: Binary data

Attachment: ChangeLog.strnlen_wcslen_64
Description: Binary data

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