diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/memcpy.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/memcpy.S | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/sysdeps/x86_64/multiarch/memcpy.S b/sysdeps/x86_64/multiarch/memcpy.S deleted file mode 100644 index 64a1bcd137..0000000000 --- a/sysdeps/x86_64/multiarch/memcpy.S +++ /dev/null @@ -1,89 +0,0 @@ -/* Multiple versions of memcpy - All versions must be listed in ifunc-impl-list.c. - Copyright (C) 2010-2016 Free Software Foundation, Inc. - Contributed by Intel Corporation. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <shlib-compat.h> -#include <init-arch.h> - -/* Define multiple versions only for the definition in lib and for - DSO. In static binaries we need memcpy before the initialization - happened. */ -#if defined SHARED && IS_IN (libc) - .text -ENTRY(__new_memcpy) - .type __new_memcpy, @gnu_indirect_function - LOAD_RTLD_GLOBAL_RO_RDX -#ifdef HAVE_AVX512_ASM_SUPPORT - HAS_ARCH_FEATURE (AVX512F_Usable) - jz 1f - HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER) - jz 1f - leaq __memcpy_avx512_no_vzeroupper(%rip), %rax - ret -#endif -1: leaq __memcpy_avx_unaligned(%rip), %rax - HAS_ARCH_FEATURE (AVX_Fast_Unaligned_Load) - jz 2f - ret -2: leaq __memcpy_sse2(%rip), %rax - HAS_ARCH_FEATURE (Slow_BSF) - jnz 3f - leaq __memcpy_sse2_unaligned(%rip), %rax - ret -3: HAS_CPU_FEATURE (SSSE3) - jz 4f - leaq __memcpy_ssse3(%rip), %rax -4: ret -END(__new_memcpy) - -# undef ENTRY -# define ENTRY(name) \ - .type __memcpy_sse2, @function; \ - .globl __memcpy_sse2; \ - .hidden __memcpy_sse2; \ - .p2align 4; \ - __memcpy_sse2: cfi_startproc; \ - CALL_MCOUNT -# undef END -# define END(name) \ - cfi_endproc; .size __memcpy_sse2, .-__memcpy_sse2 - -# undef ENTRY_CHK -# define ENTRY_CHK(name) \ - .type __memcpy_chk_sse2, @function; \ - .globl __memcpy_chk_sse2; \ - .p2align 4; \ - __memcpy_chk_sse2: cfi_startproc; \ - CALL_MCOUNT -# undef END_CHK -# define END_CHK(name) \ - cfi_endproc; .size __memcpy_chk_sse2, .-__memcpy_chk_sse2 - -# undef libc_hidden_builtin_def -/* It doesn't make sense to send libc-internal memcpy calls through a PLT. - The speedup we get from using SSSE3 instruction is likely eaten away - by the indirect call in the PLT. */ -# define libc_hidden_builtin_def(name) \ - .globl __GI_memcpy; __GI_memcpy = __memcpy_sse2 - -versioned_symbol (libc, __new_memcpy, memcpy, GLIBC_2_14); -#endif - -#include "../memcpy.S" |