1 /* Multiple versions of bzero
2 Copyright (C) 2010 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 #include <init-arch.h>
25 .type __bzero, @gnu_indirect_function
26 cmpl $0, __cpu_features+KIND_OFFSET(%rip)
28 call __init_cpu_features
29 1: leaq __bzero_x86_64(%rip), %rax
30 testl $bit_Prefer_SSE_for_memop, __cpu_features+FEATURE_OFFSET+index_Prefer_SSE_for_memop(%rip)
32 leaq __bzero_sse2(%rip), %rax
36 .type __bzero_sse2, @function
40 mov %rsi,%rdx /* Adjust parameter. */
41 xorl %esi,%esi /* Fill with 0s. */
44 .size __bzero_sse2, .-__bzero_sse2
46 .type __bzero_x86_64, @function
50 mov %rsi,%rdx /* Adjust parameter. */
51 xorl %esi,%esi /* Fill with 0s. */
54 .size __bzero_x86_64, .-__bzero_x86_64
56 weak_alias (__bzero, bzero)