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ef9c4cb6c7
glibc/sysdeps/x86_64/multiarch/ifunc-impl-list.c
H.J. Lu ef9c4cb6c7 x86-64: Optimize wmemset with SSE2/AVX2/AVX512 
The difference between memset and wmemset is byte vs int.  Add stubs
to SSE2/AVX2/AVX512 memset for wmemset with updated constant and size:

SSE2 wmemset:
	shl    $0x2,%rdx
	movd   %esi,%xmm0
	mov    %rdi,%rax
	pshufd $0x0,%xmm0,%xmm0
	jmp	entry_from_wmemset

SSE2 memset:
	movd   %esi,%xmm0
	mov    %rdi,%rax
	punpcklbw %xmm0,%xmm0
	punpcklwd %xmm0,%xmm0
	pshufd $0x0,%xmm0,%xmm0
entry_from_wmemset:

Since the ERMS versions of wmemset requires "rep stosl" instead of
"rep stosb", only the vector store stubs of SSE2/AVX2/AVX512 wmemset
are added.  The SSE2 wmemset is about 3X faster and the AVX2 wmemset
is about 6X faster on Haswell.

	* include/wchar.h (__wmemset_chk): New.
	* sysdeps/x86_64/memset.S (VDUP_TO_VEC0_AND_SET_RETURN): Renamed
	to MEMSET_VDUP_TO_VEC0_AND_SET_RETURN.
	(WMEMSET_VDUP_TO_VEC0_AND_SET_RETURN): New.
	(WMEMSET_CHK_SYMBOL): Likewise.
	(WMEMSET_SYMBOL): Likewise.
	(__wmemset): Add hidden definition.
	(wmemset): Add weak hidden definition.
	* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add
	wmemset_chk-nonshared.
	* sysdeps/x86_64/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add __wmemset_sse2_unaligned,
	__wmemset_avx2_unaligned, __wmemset_avx512_unaligned,
	__wmemset_chk_sse2_unaligned, __wmemset_chk_avx2_unaligned
	and __wmemset_chk_avx512_unaligned.
	* sysdeps/x86_64/multiarch/memset-avx2-unaligned-erms.S
	(VDUP_TO_VEC0_AND_SET_RETURN): Renamed to ...
	(MEMSET_VDUP_TO_VEC0_AND_SET_RETURN): This.
	(WMEMSET_VDUP_TO_VEC0_AND_SET_RETURN): New.
	(WMEMSET_SYMBOL): Likewise.
	* sysdeps/x86_64/multiarch/memset-avx512-unaligned-erms.S
	(VDUP_TO_VEC0_AND_SET_RETURN): Renamed to ...
	(MEMSET_VDUP_TO_VEC0_AND_SET_RETURN): This.
	(WMEMSET_VDUP_TO_VEC0_AND_SET_RETURN): New.
	(WMEMSET_SYMBOL): Likewise.
	* sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S: Updated.
	(WMEMSET_CHK_SYMBOL): New.
	(WMEMSET_CHK_SYMBOL (__wmemset_chk, unaligned)): Likewise.
	(WMEMSET_SYMBOL (__wmemset, unaligned)): Likewise.
	* sysdeps/x86_64/multiarch/memset.S (WMEMSET_SYMBOL): New.
	(libc_hidden_builtin_def): Also define __GI_wmemset and
	__GI___wmemset.
	(weak_alias): New.
	* sysdeps/x86_64/multiarch/wmemset.c: New file.
	* sysdeps/x86_64/multiarch/wmemset.h: Likewise.
	* sysdeps/x86_64/multiarch/wmemset_chk-nonshared.S: Likewise.
	* sysdeps/x86_64/multiarch/wmemset_chk.c: Likewise.
	* sysdeps/x86_64/wmemset.c: Likewise.
	* sysdeps/x86_64/wmemset_chk.c: Likewise.
2017-06-05 11:09:59 -07:00

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/* Enumerate available IFUNC implementations of a function. x86-64 version.
Copyright (C) 2012-2017 Free Software Foundation, Inc.
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 <assert.h>
#include <string.h>
#include <wchar.h>
#include <ifunc-impl-list.h>
#include <sysdep.h>
#include "init-arch.h"
/* Maximum number of IFUNC implementations. */
#define MAX_IFUNC 5
/* Fill ARRAY of MAX elements with IFUNC implementations for function
NAME supported on target machine and return the number of valid
entries. */
size_t
__libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
size_t max)
{
assert (max >= MAX_IFUNC);
size_t i = 0;
/* Support sysdeps/x86_64/multiarch/memcmp.S. */
IFUNC_IMPL (i, name, memcmp,
IFUNC_IMPL_ADD (array, i, memcmp, HAS_CPU_FEATURE (SSE4_1),
__memcmp_sse4_1)
IFUNC_IMPL_ADD (array, i, memcmp, HAS_CPU_FEATURE (SSSE3),
__memcmp_ssse3)
IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_sse2))
/* Support sysdeps/x86_64/multiarch/memmove_chk.c. */
IFUNC_IMPL (i, name, __memmove_chk,
IFUNC_IMPL_ADD (array, i, __memmove_chk,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memmove_chk_avx512_no_vzeroupper)
IFUNC_IMPL_ADD (array, i, __memmove_chk,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memmove_chk_avx512_unaligned)
IFUNC_IMPL_ADD (array, i, __memmove_chk,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memmove_chk_avx512_unaligned_erms)
IFUNC_IMPL_ADD (array, i, __memmove_chk,
HAS_ARCH_FEATURE (AVX_Usable),
__memmove_chk_avx_unaligned)
IFUNC_IMPL_ADD (array, i, __memmove_chk,
HAS_ARCH_FEATURE (AVX_Usable),
__memmove_chk_avx_unaligned_erms)
IFUNC_IMPL_ADD (array, i, __memmove_chk,
HAS_CPU_FEATURE (SSSE3),
__memmove_chk_ssse3_back)
IFUNC_IMPL_ADD (array, i, __memmove_chk,
HAS_CPU_FEATURE (SSSE3),
__memmove_chk_ssse3)
IFUNC_IMPL_ADD (array, i, __memmove_chk, 1,
__memmove_chk_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, __memmove_chk, 1,
__memmove_chk_sse2_unaligned_erms))
/* Support sysdeps/x86_64/multiarch/memmove.S. */
IFUNC_IMPL (i, name, memmove,
IFUNC_IMPL_ADD (array, i, memmove,
HAS_ARCH_FEATURE (AVX_Usable),
__memmove_avx_unaligned)
IFUNC_IMPL_ADD (array, i, memmove,
HAS_ARCH_FEATURE (AVX_Usable),
__memmove_avx_unaligned_erms)
IFUNC_IMPL_ADD (array, i, memmove,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memmove_avx512_no_vzeroupper)
IFUNC_IMPL_ADD (array, i, memmove,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memmove_avx512_unaligned)
IFUNC_IMPL_ADD (array, i, memmove,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memmove_avx512_unaligned_erms)
IFUNC_IMPL_ADD (array, i, memmove, HAS_CPU_FEATURE (SSSE3),
__memmove_ssse3_back)
IFUNC_IMPL_ADD (array, i, memmove, HAS_CPU_FEATURE (SSSE3),
__memmove_ssse3)
IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_erms)
IFUNC_IMPL_ADD (array, i, memmove, 1,
__memmove_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, memmove, 1,
__memmove_sse2_unaligned_erms))
/* Support sysdeps/x86_64/multiarch/memset_chk.S. */
IFUNC_IMPL (i, name, __memset_chk,
IFUNC_IMPL_ADD (array, i, __memset_chk, 1,
__memset_chk_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, __memset_chk, 1,
__memset_chk_sse2_unaligned_erms)
IFUNC_IMPL_ADD (array, i, __memset_chk,
HAS_ARCH_FEATURE (AVX2_Usable),
__memset_chk_avx2_unaligned)
IFUNC_IMPL_ADD (array, i, __memset_chk,
HAS_ARCH_FEATURE (AVX2_Usable),
__memset_chk_avx2_unaligned_erms)
IFUNC_IMPL_ADD (array, i, __memset_chk,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memset_chk_avx512_unaligned_erms)
IFUNC_IMPL_ADD (array, i, __memset_chk,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memset_chk_avx512_unaligned)
IFUNC_IMPL_ADD (array, i, __memset_chk,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memset_chk_avx512_no_vzeroupper)
)
/* Support sysdeps/x86_64/multiarch/memset.S. */
IFUNC_IMPL (i, name, memset,
IFUNC_IMPL_ADD (array, i, memset, 1,
__memset_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, memset, 1,
__memset_sse2_unaligned_erms)
IFUNC_IMPL_ADD (array, i, memset, 1, __memset_erms)
IFUNC_IMPL_ADD (array, i, memset,
HAS_ARCH_FEATURE (AVX2_Usable),
__memset_avx2_unaligned)
IFUNC_IMPL_ADD (array, i, memset,
HAS_ARCH_FEATURE (AVX2_Usable),
__memset_avx2_unaligned_erms)
IFUNC_IMPL_ADD (array, i, memset,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memset_avx512_unaligned_erms)
IFUNC_IMPL_ADD (array, i, memset,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memset_avx512_unaligned)
IFUNC_IMPL_ADD (array, i, memset,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memset_avx512_no_vzeroupper)
)
/* Support sysdeps/x86_64/multiarch/stpncpy.S. */
IFUNC_IMPL (i, name, stpncpy,
IFUNC_IMPL_ADD (array, i, stpncpy, HAS_CPU_FEATURE (SSSE3),
__stpncpy_ssse3)
IFUNC_IMPL_ADD (array, i, stpncpy, 1,
__stpncpy_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, stpncpy, 1, __stpncpy_sse2))
/* Support sysdeps/x86_64/multiarch/stpcpy.S. */
IFUNC_IMPL (i, name, stpcpy,
IFUNC_IMPL_ADD (array, i, stpcpy, HAS_CPU_FEATURE (SSSE3),
__stpcpy_ssse3)
IFUNC_IMPL_ADD (array, i, stpcpy, 1, __stpcpy_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, stpcpy, 1, __stpcpy_sse2))
/* Support sysdeps/x86_64/multiarch/strcasecmp_l.S. */
IFUNC_IMPL (i, name, strcasecmp,
IFUNC_IMPL_ADD (array, i, strcasecmp,
HAS_ARCH_FEATURE (AVX_Usable),
__strcasecmp_avx)
IFUNC_IMPL_ADD (array, i, strcasecmp,
HAS_CPU_FEATURE (SSE4_2),
__strcasecmp_sse42)
IFUNC_IMPL_ADD (array, i, strcasecmp,
HAS_CPU_FEATURE (SSSE3),
__strcasecmp_ssse3)
IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_sse2))
/* Support sysdeps/x86_64/multiarch/strcasecmp_l.S. */
IFUNC_IMPL (i, name, strcasecmp_l,
IFUNC_IMPL_ADD (array, i, strcasecmp_l,
HAS_ARCH_FEATURE (AVX_Usable),
__strcasecmp_l_avx)
IFUNC_IMPL_ADD (array, i, strcasecmp_l,
HAS_CPU_FEATURE (SSE4_2),
__strcasecmp_l_sse42)
IFUNC_IMPL_ADD (array, i, strcasecmp_l,
HAS_CPU_FEATURE (SSSE3),
__strcasecmp_l_ssse3)
IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
__strcasecmp_l_sse2))
/* Support sysdeps/x86_64/multiarch/strcat.S. */
IFUNC_IMPL (i, name, strcat,
IFUNC_IMPL_ADD (array, i, strcat, HAS_CPU_FEATURE (SSSE3),
__strcat_ssse3)
IFUNC_IMPL_ADD (array, i, strcat, 1, __strcat_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, strcat, 1, __strcat_sse2))
/* Support sysdeps/x86_64/multiarch/strchr.S. */
IFUNC_IMPL (i, name, strchr,
IFUNC_IMPL_ADD (array, i, strchr, 1, __strchr_sse2_no_bsf)
IFUNC_IMPL_ADD (array, i, strchr, 1, __strchr_sse2))
/* Support sysdeps/x86_64/multiarch/strcmp.S. */
IFUNC_IMPL (i, name, strcmp,
IFUNC_IMPL_ADD (array, i, strcmp, HAS_CPU_FEATURE (SSE4_2),
__strcmp_sse42)
IFUNC_IMPL_ADD (array, i, strcmp, HAS_CPU_FEATURE (SSSE3),
__strcmp_ssse3)
IFUNC_IMPL_ADD (array, i, strcmp, 1, __strcmp_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, strcmp, 1, __strcmp_sse2))
/* Support sysdeps/x86_64/multiarch/strcpy.S. */
IFUNC_IMPL (i, name, strcpy,
IFUNC_IMPL_ADD (array, i, strcpy, HAS_CPU_FEATURE (SSSE3),
__strcpy_ssse3)
IFUNC_IMPL_ADD (array, i, strcpy, 1, __strcpy_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, strcpy, 1, __strcpy_sse2))
/* Support sysdeps/x86_64/multiarch/strcspn.S. */
IFUNC_IMPL (i, name, strcspn,
IFUNC_IMPL_ADD (array, i, strcspn, HAS_CPU_FEATURE (SSE4_2),
__strcspn_sse42)
IFUNC_IMPL_ADD (array, i, strcspn, 1, __strcspn_sse2))
/* Support sysdeps/x86_64/multiarch/strncase_l.S. */
IFUNC_IMPL (i, name, strncasecmp,
IFUNC_IMPL_ADD (array, i, strncasecmp,
HAS_ARCH_FEATURE (AVX_Usable),
__strncasecmp_avx)
IFUNC_IMPL_ADD (array, i, strncasecmp,
HAS_CPU_FEATURE (SSE4_2),
__strncasecmp_sse42)
IFUNC_IMPL_ADD (array, i, strncasecmp,
HAS_CPU_FEATURE (SSSE3),
__strncasecmp_ssse3)
IFUNC_IMPL_ADD (array, i, strncasecmp, 1,
__strncasecmp_sse2))
/* Support sysdeps/x86_64/multiarch/strncase_l.S. */
IFUNC_IMPL (i, name, strncasecmp_l,
IFUNC_IMPL_ADD (array, i, strncasecmp_l,
HAS_ARCH_FEATURE (AVX_Usable),
__strncasecmp_l_avx)
IFUNC_IMPL_ADD (array, i, strncasecmp_l,
HAS_CPU_FEATURE (SSE4_2),
__strncasecmp_l_sse42)
IFUNC_IMPL_ADD (array, i, strncasecmp_l,
HAS_CPU_FEATURE (SSSE3),
__strncasecmp_l_ssse3)
IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
__strncasecmp_l_sse2))
/* Support sysdeps/x86_64/multiarch/strncat.S. */
IFUNC_IMPL (i, name, strncat,
IFUNC_IMPL_ADD (array, i, strncat, HAS_CPU_FEATURE (SSSE3),
__strncat_ssse3)
IFUNC_IMPL_ADD (array, i, strncat, 1,
__strncat_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, strncat, 1, __strncat_sse2))
/* Support sysdeps/x86_64/multiarch/strncpy.S. */
IFUNC_IMPL (i, name, strncpy,
IFUNC_IMPL_ADD (array, i, strncpy, HAS_CPU_FEATURE (SSSE3),
__strncpy_ssse3)
IFUNC_IMPL_ADD (array, i, strncpy, 1,
__strncpy_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, strncpy, 1, __strncpy_sse2))
/* Support sysdeps/x86_64/multiarch/strpbrk.S. */
IFUNC_IMPL (i, name, strpbrk,
IFUNC_IMPL_ADD (array, i, strpbrk, HAS_CPU_FEATURE (SSE4_2),
__strpbrk_sse42)
IFUNC_IMPL_ADD (array, i, strpbrk, 1, __strpbrk_sse2))
/* Support sysdeps/x86_64/multiarch/strspn.S. */
IFUNC_IMPL (i, name, strspn,
IFUNC_IMPL_ADD (array, i, strspn, HAS_CPU_FEATURE (SSE4_2),
__strspn_sse42)
IFUNC_IMPL_ADD (array, i, strspn, 1, __strspn_sse2))
/* Support sysdeps/x86_64/multiarch/strstr.c. */
IFUNC_IMPL (i, name, strstr,
IFUNC_IMPL_ADD (array, i, strstr, 1, __strstr_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, strstr, 1, __strstr_sse2))
/* Support sysdeps/x86_64/multiarch/wcscpy.S. */
IFUNC_IMPL (i, name, wcscpy,
IFUNC_IMPL_ADD (array, i, wcscpy, HAS_CPU_FEATURE (SSSE3),
__wcscpy_ssse3)
IFUNC_IMPL_ADD (array, i, wcscpy, 1, __wcscpy_sse2))
/* Support sysdeps/x86_64/multiarch/wmemcmp.S. */
IFUNC_IMPL (i, name, wmemcmp,
IFUNC_IMPL_ADD (array, i, wmemcmp, HAS_CPU_FEATURE (SSE4_1),
__wmemcmp_sse4_1)
IFUNC_IMPL_ADD (array, i, wmemcmp, HAS_CPU_FEATURE (SSSE3),
__wmemcmp_ssse3)
IFUNC_IMPL_ADD (array, i, wmemcmp, 1, __wmemcmp_sse2))
/* Support sysdeps/x86_64/multiarch/wmemset.S. */
IFUNC_IMPL (i, name, wmemset,
IFUNC_IMPL_ADD (array, i, wmemset, 1,
__wmemset_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, wmemset,
HAS_ARCH_FEATURE (AVX2_Usable),
__wmemset_avx2_unaligned)
IFUNC_IMPL_ADD (array, i, wmemset,
HAS_ARCH_FEATURE (AVX512F_Usable),
__wmemset_avx512_unaligned))
#ifdef SHARED
/* Support sysdeps/x86_64/multiarch/memcpy_chk.S. */
IFUNC_IMPL (i, name, __memcpy_chk,
IFUNC_IMPL_ADD (array, i, __memcpy_chk,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memcpy_chk_avx512_no_vzeroupper)
IFUNC_IMPL_ADD (array, i, __memcpy_chk,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memcpy_chk_avx512_unaligned)
IFUNC_IMPL_ADD (array, i, __memcpy_chk,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memcpy_chk_avx512_unaligned_erms)
IFUNC_IMPL_ADD (array, i, __memcpy_chk,
HAS_ARCH_FEATURE (AVX_Usable),
__memcpy_chk_avx_unaligned)
IFUNC_IMPL_ADD (array, i, __memcpy_chk,
HAS_ARCH_FEATURE (AVX_Usable),
__memcpy_chk_avx_unaligned_erms)
IFUNC_IMPL_ADD (array, i, __memcpy_chk,
HAS_CPU_FEATURE (SSSE3),
__memcpy_chk_ssse3_back)
IFUNC_IMPL_ADD (array, i, __memcpy_chk,
HAS_CPU_FEATURE (SSSE3),
__memcpy_chk_ssse3)
IFUNC_IMPL_ADD (array, i, __memcpy_chk, 1,
__memcpy_chk_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, __memcpy_chk, 1,
__memcpy_chk_sse2_unaligned_erms))
/* Support sysdeps/x86_64/multiarch/memcpy.S. */
IFUNC_IMPL (i, name, memcpy,
IFUNC_IMPL_ADD (array, i, memcpy,
HAS_ARCH_FEATURE (AVX_Usable),
__memcpy_avx_unaligned)
IFUNC_IMPL_ADD (array, i, memcpy,
HAS_ARCH_FEATURE (AVX_Usable),
__memcpy_avx_unaligned_erms)
IFUNC_IMPL_ADD (array, i, memcpy, HAS_CPU_FEATURE (SSSE3),
__memcpy_ssse3_back)
IFUNC_IMPL_ADD (array, i, memcpy, HAS_CPU_FEATURE (SSSE3),
__memcpy_ssse3)
IFUNC_IMPL_ADD (array, i, memcpy,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memcpy_avx512_no_vzeroupper)
IFUNC_IMPL_ADD (array, i, memcpy,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memcpy_avx512_unaligned)
IFUNC_IMPL_ADD (array, i, memcpy,
HAS_ARCH_FEATURE (AVX512F_Usable),
__memcpy_avx512_unaligned_erms)
IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, memcpy, 1,
__memcpy_sse2_unaligned_erms)
IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_erms))
/* Support sysdeps/x86_64/multiarch/mempcpy_chk.S. */
IFUNC_IMPL (i, name, __mempcpy_chk,
IFUNC_IMPL_ADD (array, i, __mempcpy_chk,
HAS_ARCH_FEATURE (AVX512F_Usable),
__mempcpy_chk_avx512_no_vzeroupper)
IFUNC_IMPL_ADD (array, i, __mempcpy_chk,
HAS_ARCH_FEATURE (AVX512F_Usable),
__mempcpy_chk_avx512_unaligned)
IFUNC_IMPL_ADD (array, i, __mempcpy_chk,
HAS_ARCH_FEATURE (AVX512F_Usable),
__mempcpy_chk_avx512_unaligned_erms)
IFUNC_IMPL_ADD (array, i, __mempcpy_chk,
HAS_ARCH_FEATURE (AVX_Usable),
__mempcpy_chk_avx_unaligned)
IFUNC_IMPL_ADD (array, i, __mempcpy_chk,
HAS_ARCH_FEATURE (AVX_Usable),
__mempcpy_chk_avx_unaligned_erms)
IFUNC_IMPL_ADD (array, i, __mempcpy_chk,
HAS_CPU_FEATURE (SSSE3),
__mempcpy_chk_ssse3_back)
IFUNC_IMPL_ADD (array, i, __mempcpy_chk,
HAS_CPU_FEATURE (SSSE3),
__mempcpy_chk_ssse3)
IFUNC_IMPL_ADD (array, i, __mempcpy_chk, 1,
__mempcpy_chk_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, __mempcpy_chk, 1,
__mempcpy_chk_sse2_unaligned_erms))
/* Support sysdeps/x86_64/multiarch/mempcpy.S. */
IFUNC_IMPL (i, name, mempcpy,
IFUNC_IMPL_ADD (array, i, mempcpy,
HAS_ARCH_FEATURE (AVX512F_Usable),
__mempcpy_avx512_no_vzeroupper)
IFUNC_IMPL_ADD (array, i, mempcpy,
HAS_ARCH_FEATURE (AVX512F_Usable),
__mempcpy_avx512_unaligned)
IFUNC_IMPL_ADD (array, i, mempcpy,
HAS_ARCH_FEATURE (AVX512F_Usable),
__mempcpy_avx512_unaligned_erms)
IFUNC_IMPL_ADD (array, i, mempcpy,
HAS_ARCH_FEATURE (AVX_Usable),
__mempcpy_avx_unaligned)
IFUNC_IMPL_ADD (array, i, mempcpy,
HAS_ARCH_FEATURE (AVX_Usable),
__mempcpy_avx_unaligned_erms)
IFUNC_IMPL_ADD (array, i, mempcpy, HAS_CPU_FEATURE (SSSE3),
__mempcpy_ssse3_back)
IFUNC_IMPL_ADD (array, i, mempcpy, HAS_CPU_FEATURE (SSSE3),
__mempcpy_ssse3)
IFUNC_IMPL_ADD (array, i, mempcpy, 1,
__mempcpy_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, mempcpy, 1,
__mempcpy_sse2_unaligned_erms)
IFUNC_IMPL_ADD (array, i, mempcpy, 1, __mempcpy_erms))
/* Support sysdeps/x86_64/multiarch/strncmp.S. */
IFUNC_IMPL (i, name, strncmp,
IFUNC_IMPL_ADD (array, i, strncmp, HAS_CPU_FEATURE (SSE4_2),
__strncmp_sse42)
IFUNC_IMPL_ADD (array, i, strncmp, HAS_CPU_FEATURE (SSSE3),
__strncmp_ssse3)
IFUNC_IMPL_ADD (array, i, strncmp, 1, __strncmp_sse2))
/* Support sysdeps/x86_64/multiarch/wmemset_chk.S. */
IFUNC_IMPL (i, name, __wmemset_chk,
IFUNC_IMPL_ADD (array, i, __wmemset_chk, 1,
__wmemset_chk_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, __wmemset_chk,
HAS_ARCH_FEATURE (AVX2_Usable),
__wmemset_chk_avx2_unaligned)
IFUNC_IMPL_ADD (array, i, __wmemset_chk,
HAS_ARCH_FEATURE (AVX512F_Usable),
__wmemset_chk_avx512_unaligned))
#endif
return i;
}
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