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| author | Ondrej Bilka <neleai@seznam.cz> | 2013-03-18 07:39:12 +0100 |
|---|---|---|
| committer | Ondrej Bilka <neleai@seznam.cz> | 2013-03-18 07:39:12 +0100 |
| commit | 37bb363f03d75e5e6f2ca45f2c686a3a0167797e (patch) | |
| tree | a50f6871e18f34cab50d770bcc730c53364850d5 /sysdeps/x86_64/multiarch/strnlen.S | |
| parent | f816705060415c476d8a9a0cbb683dc7a5aeef8e (diff) | |
| download | glibc-37bb363f03d75e5e6f2ca45f2c686a3a0167797e.tar.gz glibc-37bb363f03d75e5e6f2ca45f2c686a3a0167797e.tar.xz glibc-37bb363f03d75e5e6f2ca45f2c686a3a0167797e.zip | |
Faster strlen on x64.
Diffstat (limited to 'sysdeps/x86_64/multiarch/strnlen.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strnlen.S | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/sysdeps/x86_64/multiarch/strnlen.S b/sysdeps/x86_64/multiarch/strnlen.S deleted file mode 100644 index 124f8458a3..0000000000 --- a/sysdeps/x86_64/multiarch/strnlen.S +++ /dev/null @@ -1,57 +0,0 @@ -/* multiple version of strnlen - All versions must be listed in ifunc-impl-list.c. - Copyright (C) 2011-2013 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <init-arch.h> - - -/* Define multiple versions only for the definition in libc. */ -#ifndef NOT_IN_libc - - .text -ENTRY(__strnlen) - .type __strnlen, @gnu_indirect_function - cmpl $0, __cpu_features+KIND_OFFSET(%rip) - jne 1f - call __init_cpu_features -1: leaq __strnlen_sse2(%rip), %rax - testl $bit_Slow_BSF, __cpu_features+FEATURE_OFFSET+index_Slow_BSF(%rip) - jz 2f - leaq __strnlen_sse2_no_bsf(%rip), %rax -2: ret -END(__strnlen) - -# undef ENTRY -# define ENTRY(name) \ - .type __strnlen_sse2, @function; \ - .align 16; \ - .globl __strnlen_sse2; \ - .hidden __strnlen_sse2; \ - __strnlen_sse2: cfi_startproc; \ - CALL_MCOUNT -# undef END -# define END(name) \ - cfi_endproc; .size __strnlen_sse2, .-__strnlen_sse2 - -# undef libc_hidden_def -# define libc_hidden_def(name) \ - .globl __GI_strnlen; __GI_strnlen = __strnlen_sse2 -#endif - -#include "../strnlen.S" |