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be13f7bf | 1 | /* Multiple versions of wmemcmp |
b090e8ea | 2 | All versions must be listed in ifunc-impl-list.c. |
d4697bc9 | 3 | Copyright (C) 2011-2014 Free Software Foundation, Inc. |
be13f7bf LD |
4 | Contributed by Intel Corporation. |
5 | This file is part of the GNU C Library. | |
6 | ||
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. | |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
18 | License along with the GNU C Library; if not, see |
19 | <http://www.gnu.org/licenses/>. */ | |
be13f7bf LD |
20 | |
21 | #include <sysdep.h> | |
22 | #include <init-arch.h> | |
23 | ||
24 | /* Define multiple versions only for the definition in libc. */ | |
25 | ||
26 | #ifndef NOT_IN_libc | |
be13f7bf LD |
27 | .text |
28 | ENTRY(wmemcmp) | |
29 | .type wmemcmp, @gnu_indirect_function | |
30 | pushl %ebx | |
31 | cfi_adjust_cfa_offset (4) | |
32 | cfi_rel_offset (ebx, 0) | |
9a1d9254 | 33 | LOAD_PIC_REG(bx) |
be13f7bf LD |
34 | cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx) |
35 | jne 1f | |
36 | call __init_cpu_features | |
37 | 1: leal __wmemcmp_ia32@GOTOFF(%ebx), %eax | |
38 | testl $bit_SSSE3, CPUID_OFFSET+index_SSSE3+__cpu_features@GOTOFF(%ebx) | |
39 | jz 2f | |
40 | leal __wmemcmp_ssse3@GOTOFF(%ebx), %eax | |
41 | testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features@GOTOFF(%ebx) | |
42 | jz 2f | |
43 | leal __wmemcmp_sse4_2@GOTOFF(%ebx), %eax | |
44 | 2: popl %ebx | |
45 | cfi_adjust_cfa_offset (-4) | |
46 | cfi_restore (ebx) | |
47 | ret | |
48 | END(wmemcmp) | |
49 | #endif |