projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| be13f7bf LD |
1 | /* Multiple versions of wmemcmp |
| 2 | Copyright (C) 2011 Free Software Foundation, Inc. | |
| 3 | Contributed by Intel Corporation. | |
| 4 | This file is part of the GNU C Library. | |
| 5 | ||
| 6 | The GNU C Library is free software; you can redistribute it and/or | |
| 7 | modify it under the terms of the GNU Lesser General Public | |
| 8 | License as published by the Free Software Foundation; either | |
| 9 | version 2.1 of the License, or (at your option) any later version. | |
| 10 | ||
| 11 | The GNU C Library is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | Lesser General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU Lesser General Public | |
| 59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
| 18 | <http://www.gnu.org/licenses/>. */ | |
| be13f7bf LD |
19 | |
| 20 | #include <sysdep.h> | |
| 21 | #include <init-arch.h> | |
| 22 | ||
| 23 | /* Define multiple versions only for the definition in libc. */ | |
| 24 | #ifndef NOT_IN_libc | |
| 25 | .text | |
| 26 | ENTRY(wmemcmp) | |
| 27 | .type wmemcmp, @gnu_indirect_function | |
| 28 | cmpl $0, KIND_OFFSET+__cpu_features(%rip) | |
| 29 | jne 1f | |
| 30 | call __init_cpu_features | |
| 31 | ||
| 32 | 1: testl $bit_SSSE3, __cpu_features+CPUID_OFFSET+index_SSSE3(%rip) | |
| 33 | jnz 2f | |
| 34 | leaq __wmemcmp_sse2(%rip), %rax | |
| 35 | ret | |
| 36 | ||
| 37 | 2: testl $bit_SSE4_1, __cpu_features+CPUID_OFFSET+index_SSE4_1(%rip) | |
| 38 | jz 3f | |
| 39 | leaq __wmemcmp_sse4_1(%rip), %rax | |
| 40 | ret | |
| 41 | ||
| 42 | 3: leaq __wmemcmp_ssse3(%rip), %rax | |
| 43 | ret | |
| 44 | ||
| 45 | END(wmemcmp) | |
| 46 | #endif |