projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| be13f7bf | 1 | /* Multiple versions of wmemcmp |
| ac49ecaf | 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 | #ifndef NOT_IN_libc | |
| 26 | .text | |
| 27 | ENTRY(wmemcmp) | |
| 28 | .type wmemcmp, @gnu_indirect_function | |
| 29 | cmpl $0, KIND_OFFSET+__cpu_features(%rip) | |
| 30 | jne 1f | |
| 31 | call __init_cpu_features | |
| 32 | ||
| 33 | 1: testl $bit_SSSE3, __cpu_features+CPUID_OFFSET+index_SSSE3(%rip) | |
| 34 | jnz 2f | |
| 35 | leaq __wmemcmp_sse2(%rip), %rax | |
| 36 | ret | |
| 37 | ||
| 38 | 2: testl $bit_SSE4_1, __cpu_features+CPUID_OFFSET+index_SSE4_1(%rip) | |
| 39 | jz 3f | |
| 40 | leaq __wmemcmp_sse4_1(%rip), %rax | |
| 41 | ret | |
| 42 | ||
| 43 | 3: leaq __wmemcmp_ssse3(%rip), %rax | |
| 44 | ret | |
| 45 | ||
| 46 | END(wmemcmp) | |
| 47 | #endif |