1 /* Multiple versions of wmemcmp
2 All versions must be listed in ifunc-impl-list.c.
3 Copyright (C) 2011-2014 Free Software Foundation, Inc.
4 Contributed by Intel Corporation.
5 This file is part of the GNU C Library.
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, see
19 <http://www.gnu.org/licenses/>. */
22 #include <init-arch.h>
24 /* Define multiple versions only for the definition in libc. */
28 .type wmemcmp, @gnu_indirect_function
29 cmpl $0, KIND_OFFSET+__cpu_features(%rip)
31 call __init_cpu_features
33 1: testl $bit_SSSE3, __cpu_features+CPUID_OFFSET+index_SSSE3(%rip)
35 leaq __wmemcmp_sse2(%rip), %rax
38 2: testl $bit_SSE4_1, __cpu_features+CPUID_OFFSET+index_SSE4_1(%rip)
40 leaq __wmemcmp_sse4_1(%rip), %rax
43 3: leaq __wmemcmp_ssse3(%rip), %rax