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https://sourceware.org/git/glibc.git
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1a153e47fc
Optimize x86-64 strcat/strncat, strcpy/strncpy and stpcpy/stpncpy with AVX2.
It uses vector comparison as much as possible. In general, the larger the
source string, the greater performance gain observed, reaching speedups of
1.6x compared to SSE2 unaligned routines. Select AVX2 strcat/strncat,
strcpy/strncpy and stpcpy/stpncpy on AVX2 machines where vzeroupper is
preferred and AVX unaligned load is fast.
* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add
strcat-avx2, strncat-avx2, strcpy-avx2, strncpy-avx2,
stpcpy-avx2 and stpncpy-avx2.
* sysdeps/x86_64/multiarch/ifunc-impl-list.c:
(__libc_ifunc_impl_list): Add tests for __strcat_avx2,
__strncat_avx2, __strcpy_avx2, __strncpy_avx2, __stpcpy_avx2
and __stpncpy_avx2.
* sysdeps/x86_64/multiarch/{ifunc-unaligned-ssse3.h =>
ifunc-strcpy.h}: rename header for a more generic name.
* sysdeps/x86_64/multiarch/ifunc-strcpy.h:
(IFUNC_SELECTOR): Return OPTIMIZE (avx2) on AVX 2 machines if
AVX unaligned load is fast and vzeroupper is preferred.
* sysdeps/x86_64/multiarch/stpcpy-avx2.S: New file
* sysdeps/x86_64/multiarch/stpncpy-avx2.S: Likewise
* sysdeps/x86_64/multiarch/strcat-avx2.S: Likewise
* sysdeps/x86_64/multiarch/strcpy-avx2.S: Likewise
* sysdeps/x86_64/multiarch/strncat-avx2.S: Likewise
* sysdeps/x86_64/multiarch/strncpy-avx2.S: Likewise
592 lines
22 KiB
C
592 lines
22 KiB
C
/* Enumerate available IFUNC implementations of a function. x86-64 version.
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Copyright (C) 2012-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <assert.h>
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#include <string.h>
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#include <wchar.h>
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#include <ifunc-impl-list.h>
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#include <sysdep.h>
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#include "init-arch.h"
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/* Maximum number of IFUNC implementations. */
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#define MAX_IFUNC 5
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/* Fill ARRAY of MAX elements with IFUNC implementations for function
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NAME supported on target machine and return the number of valid
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entries. */
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size_t
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__libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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size_t max)
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{
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assert (max >= MAX_IFUNC);
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size_t i = 0;
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/* Support sysdeps/x86_64/multiarch/memchr.c. */
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IFUNC_IMPL (i, name, memchr,
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IFUNC_IMPL_ADD (array, i, memchr,
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HAS_ARCH_FEATURE (AVX2_Usable),
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__memchr_avx2)
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IFUNC_IMPL_ADD (array, i, memchr, 1, __memchr_sse2))
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/* Support sysdeps/x86_64/multiarch/memcmp.c. */
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IFUNC_IMPL (i, name, memcmp,
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IFUNC_IMPL_ADD (array, i, memcmp,
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(HAS_ARCH_FEATURE (AVX2_Usable)
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&& HAS_CPU_FEATURE (MOVBE)),
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__memcmp_avx2_movbe)
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IFUNC_IMPL_ADD (array, i, memcmp, HAS_CPU_FEATURE (SSE4_1),
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__memcmp_sse4_1)
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IFUNC_IMPL_ADD (array, i, memcmp, HAS_CPU_FEATURE (SSSE3),
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__memcmp_ssse3)
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IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_sse2))
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#ifdef SHARED
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/* Support sysdeps/x86_64/multiarch/memmove_chk.c. */
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IFUNC_IMPL (i, name, __memmove_chk,
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IFUNC_IMPL_ADD (array, i, __memmove_chk,
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HAS_ARCH_FEATURE (AVX512F_Usable),
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__memmove_chk_avx512_no_vzeroupper)
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IFUNC_IMPL_ADD (array, i, __memmove_chk,
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HAS_ARCH_FEATURE (AVX512F_Usable),
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__memmove_chk_avx512_unaligned)
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IFUNC_IMPL_ADD (array, i, __memmove_chk,
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HAS_ARCH_FEATURE (AVX512F_Usable),
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__memmove_chk_avx512_unaligned_erms)
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IFUNC_IMPL_ADD (array, i, __memmove_chk,
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HAS_ARCH_FEATURE (AVX_Usable),
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__memmove_chk_avx_unaligned)
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IFUNC_IMPL_ADD (array, i, __memmove_chk,
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HAS_ARCH_FEATURE (AVX_Usable),
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__memmove_chk_avx_unaligned_erms)
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IFUNC_IMPL_ADD (array, i, __memmove_chk,
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HAS_CPU_FEATURE (SSSE3),
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__memmove_chk_ssse3_back)
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IFUNC_IMPL_ADD (array, i, __memmove_chk,
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HAS_CPU_FEATURE (SSSE3),
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__memmove_chk_ssse3)
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IFUNC_IMPL_ADD (array, i, __memmove_chk, 1,
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__memmove_chk_sse2_unaligned)
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IFUNC_IMPL_ADD (array, i, __memmove_chk, 1,
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__memmove_chk_sse2_unaligned_erms)
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IFUNC_IMPL_ADD (array, i, __memmove_chk, 1,
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__memmove_chk_erms))
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#endif
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/* Support sysdeps/x86_64/multiarch/memmove.c. */
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IFUNC_IMPL (i, name, memmove,
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IFUNC_IMPL_ADD (array, i, memmove,
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HAS_ARCH_FEATURE (AVX_Usable),
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__memmove_avx_unaligned)
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IFUNC_IMPL_ADD (array, i, memmove,
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HAS_ARCH_FEATURE (AVX_Usable),
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__memmove_avx_unaligned_erms)
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IFUNC_IMPL_ADD (array, i, memmove,
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HAS_ARCH_FEATURE (AVX512F_Usable),
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__memmove_avx512_no_vzeroupper)
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IFUNC_IMPL_ADD (array, i, memmove,
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HAS_ARCH_FEATURE (AVX512F_Usable),
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__memmove_avx512_unaligned)
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IFUNC_IMPL_ADD (array, i, memmove,
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HAS_ARCH_FEATURE (AVX512F_Usable),
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__memmove_avx512_unaligned_erms)
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IFUNC_IMPL_ADD (array, i, memmove, HAS_CPU_FEATURE (SSSE3),
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__memmove_ssse3_back)
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IFUNC_IMPL_ADD (array, i, memmove, HAS_CPU_FEATURE (SSSE3),
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__memmove_ssse3)
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IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_erms)
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IFUNC_IMPL_ADD (array, i, memmove, 1,
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__memmove_sse2_unaligned)
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IFUNC_IMPL_ADD (array, i, memmove, 1,
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__memmove_sse2_unaligned_erms))
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/* Support sysdeps/x86_64/multiarch/memrchr.c. */
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IFUNC_IMPL (i, name, memrchr,
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IFUNC_IMPL_ADD (array, i, memrchr,
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HAS_ARCH_FEATURE (AVX2_Usable),
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__memrchr_avx2)
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IFUNC_IMPL_ADD (array, i, memrchr, 1, __memrchr_sse2))
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#ifdef SHARED
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/* Support sysdeps/x86_64/multiarch/memset_chk.c. */
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IFUNC_IMPL (i, name, __memset_chk,
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IFUNC_IMPL_ADD (array, i, __memset_chk, 1,
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__memset_chk_erms)
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IFUNC_IMPL_ADD (array, i, __memset_chk, 1,
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__memset_chk_sse2_unaligned)
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IFUNC_IMPL_ADD (array, i, __memset_chk, 1,
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__memset_chk_sse2_unaligned_erms)
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IFUNC_IMPL_ADD (array, i, __memset_chk,
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HAS_ARCH_FEATURE (AVX2_Usable),
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__memset_chk_avx2_unaligned)
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IFUNC_IMPL_ADD (array, i, __memset_chk,
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HAS_ARCH_FEATURE (AVX2_Usable),
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__memset_chk_avx2_unaligned_erms)
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IFUNC_IMPL_ADD (array, i, __memset_chk,
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HAS_ARCH_FEATURE (AVX512F_Usable),
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__memset_chk_avx512_unaligned_erms)
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IFUNC_IMPL_ADD (array, i, __memset_chk,
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HAS_ARCH_FEATURE (AVX512F_Usable),
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__memset_chk_avx512_unaligned)
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IFUNC_IMPL_ADD (array, i, __memset_chk,
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HAS_ARCH_FEATURE (AVX512F_Usable),
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__memset_chk_avx512_no_vzeroupper)
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)
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#endif
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/* Support sysdeps/x86_64/multiarch/memset.c. */
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IFUNC_IMPL (i, name, memset,
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IFUNC_IMPL_ADD (array, i, memset, 1,
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__memset_sse2_unaligned)
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IFUNC_IMPL_ADD (array, i, memset, 1,
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__memset_sse2_unaligned_erms)
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IFUNC_IMPL_ADD (array, i, memset, 1, __memset_erms)
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IFUNC_IMPL_ADD (array, i, memset,
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HAS_ARCH_FEATURE (AVX2_Usable),
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__memset_avx2_unaligned)
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IFUNC_IMPL_ADD (array, i, memset,
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HAS_ARCH_FEATURE (AVX2_Usable),
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__memset_avx2_unaligned_erms)
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IFUNC_IMPL_ADD (array, i, memset,
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HAS_ARCH_FEATURE (AVX512F_Usable),
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__memset_avx512_unaligned_erms)
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IFUNC_IMPL_ADD (array, i, memset,
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HAS_ARCH_FEATURE (AVX512F_Usable),
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__memset_avx512_unaligned)
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IFUNC_IMPL_ADD (array, i, memset,
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HAS_ARCH_FEATURE (AVX512F_Usable),
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__memset_avx512_no_vzeroupper)
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)
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/* Support sysdeps/x86_64/multiarch/rawmemchr.c. */
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IFUNC_IMPL (i, name, rawmemchr,
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IFUNC_IMPL_ADD (array, i, rawmemchr,
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HAS_ARCH_FEATURE (AVX2_Usable),
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__rawmemchr_avx2)
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IFUNC_IMPL_ADD (array, i, rawmemchr, 1, __rawmemchr_sse2))
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/* Support sysdeps/x86_64/multiarch/strlen.c. */
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IFUNC_IMPL (i, name, strlen,
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IFUNC_IMPL_ADD (array, i, strlen,
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HAS_ARCH_FEATURE (AVX2_Usable),
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__strlen_avx2)
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IFUNC_IMPL_ADD (array, i, strlen, 1, __strlen_sse2))
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/* Support sysdeps/x86_64/multiarch/strnlen.c. */
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IFUNC_IMPL (i, name, strnlen,
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IFUNC_IMPL_ADD (array, i, strnlen,
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HAS_ARCH_FEATURE (AVX2_Usable),
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__strnlen_avx2)
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IFUNC_IMPL_ADD (array, i, strnlen, 1, __strnlen_sse2))
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/* Support sysdeps/x86_64/multiarch/stpncpy.c. */
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IFUNC_IMPL (i, name, stpncpy,
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IFUNC_IMPL_ADD (array, i, stpncpy, HAS_CPU_FEATURE (SSSE3),
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__stpncpy_ssse3)
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IFUNC_IMPL_ADD (array, i, stpncpy, HAS_ARCH_FEATURE (AVX2_Usable),
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__stpncpy_avx2)
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IFUNC_IMPL_ADD (array, i, stpncpy, 1,
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__stpncpy_sse2_unaligned)
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IFUNC_IMPL_ADD (array, i, stpncpy, 1, __stpncpy_sse2))
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/* Support sysdeps/x86_64/multiarch/stpcpy.c. */
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IFUNC_IMPL (i, name, stpcpy,
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IFUNC_IMPL_ADD (array, i, stpcpy, HAS_CPU_FEATURE (SSSE3),
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__stpcpy_ssse3)
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IFUNC_IMPL_ADD (array, i, stpcpy, HAS_ARCH_FEATURE (AVX2_Usable),
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__stpcpy_avx2)
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IFUNC_IMPL_ADD (array, i, stpcpy, 1, __stpcpy_sse2_unaligned)
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IFUNC_IMPL_ADD (array, i, stpcpy, 1, __stpcpy_sse2))
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/* Support sysdeps/x86_64/multiarch/strcasecmp_l.c. */
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IFUNC_IMPL (i, name, strcasecmp,
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IFUNC_IMPL_ADD (array, i, strcasecmp,
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HAS_ARCH_FEATURE (AVX_Usable),
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__strcasecmp_avx)
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IFUNC_IMPL_ADD (array, i, strcasecmp,
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HAS_CPU_FEATURE (SSE4_2),
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__strcasecmp_sse42)
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IFUNC_IMPL_ADD (array, i, strcasecmp,
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HAS_CPU_FEATURE (SSSE3),
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__strcasecmp_ssse3)
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IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_sse2))
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/* Support sysdeps/x86_64/multiarch/strcasecmp_l.c. */
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IFUNC_IMPL (i, name, strcasecmp_l,
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IFUNC_IMPL_ADD (array, i, strcasecmp_l,
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HAS_ARCH_FEATURE (AVX_Usable),
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__strcasecmp_l_avx)
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IFUNC_IMPL_ADD (array, i, strcasecmp_l,
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HAS_CPU_FEATURE (SSE4_2),
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__strcasecmp_l_sse42)
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IFUNC_IMPL_ADD (array, i, strcasecmp_l,
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HAS_CPU_FEATURE (SSSE3),
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__strcasecmp_l_ssse3)
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IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
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__strcasecmp_l_sse2))
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/* Support sysdeps/x86_64/multiarch/strcat.c. */
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IFUNC_IMPL (i, name, strcat,
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IFUNC_IMPL_ADD (array, i, strcat, HAS_ARCH_FEATURE (AVX2_Usable),
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__strcat_avx2)
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IFUNC_IMPL_ADD (array, i, strcat, HAS_CPU_FEATURE (SSSE3),
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__strcat_ssse3)
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IFUNC_IMPL_ADD (array, i, strcat, 1, __strcat_sse2_unaligned)
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IFUNC_IMPL_ADD (array, i, strcat, 1, __strcat_sse2))
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/* Support sysdeps/x86_64/multiarch/strchr.c. */
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IFUNC_IMPL (i, name, strchr,
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IFUNC_IMPL_ADD (array, i, strchr,
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HAS_ARCH_FEATURE (AVX2_Usable),
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__strchr_avx2)
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IFUNC_IMPL_ADD (array, i, strchr, 1, __strchr_sse2_no_bsf)
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IFUNC_IMPL_ADD (array, i, strchr, 1, __strchr_sse2))
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/* Support sysdeps/x86_64/multiarch/strchrnul.c. */
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IFUNC_IMPL (i, name, strchrnul,
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IFUNC_IMPL_ADD (array, i, strchrnul,
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HAS_ARCH_FEATURE (AVX2_Usable),
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__strchrnul_avx2)
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IFUNC_IMPL_ADD (array, i, strchrnul, 1, __strchrnul_sse2))
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/* Support sysdeps/x86_64/multiarch/strrchr.c. */
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IFUNC_IMPL (i, name, strrchr,
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IFUNC_IMPL_ADD (array, i, strrchr,
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HAS_ARCH_FEATURE (AVX2_Usable),
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__strrchr_avx2)
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IFUNC_IMPL_ADD (array, i, strrchr, 1, __strrchr_sse2))
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/* Support sysdeps/x86_64/multiarch/strcmp.c. */
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IFUNC_IMPL (i, name, strcmp,
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IFUNC_IMPL_ADD (array, i, strcmp,
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HAS_ARCH_FEATURE (AVX2_Usable),
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__strcmp_avx2)
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IFUNC_IMPL_ADD (array, i, strcmp, HAS_CPU_FEATURE (SSE4_2),
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__strcmp_sse42)
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IFUNC_IMPL_ADD (array, i, strcmp, HAS_CPU_FEATURE (SSSE3),
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__strcmp_ssse3)
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IFUNC_IMPL_ADD (array, i, strcmp, 1, __strcmp_sse2_unaligned)
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IFUNC_IMPL_ADD (array, i, strcmp, 1, __strcmp_sse2))
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/* Support sysdeps/x86_64/multiarch/strcpy.c. */
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IFUNC_IMPL (i, name, strcpy,
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IFUNC_IMPL_ADD (array, i, strcpy, HAS_ARCH_FEATURE (AVX2_Usable),
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__strcpy_avx2)
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IFUNC_IMPL_ADD (array, i, strcpy, HAS_CPU_FEATURE (SSSE3),
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__strcpy_ssse3)
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IFUNC_IMPL_ADD (array, i, strcpy, 1, __strcpy_sse2_unaligned)
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IFUNC_IMPL_ADD (array, i, strcpy, 1, __strcpy_sse2))
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/* Support sysdeps/x86_64/multiarch/strcspn.c. */
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IFUNC_IMPL (i, name, strcspn,
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IFUNC_IMPL_ADD (array, i, strcspn, HAS_CPU_FEATURE (SSE4_2),
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__strcspn_sse42)
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IFUNC_IMPL_ADD (array, i, strcspn, 1, __strcspn_sse2))
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/* Support sysdeps/x86_64/multiarch/strncase_l.c. */
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IFUNC_IMPL (i, name, strncasecmp,
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IFUNC_IMPL_ADD (array, i, strncasecmp,
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HAS_ARCH_FEATURE (AVX_Usable),
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__strncasecmp_avx)
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IFUNC_IMPL_ADD (array, i, strncasecmp,
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HAS_CPU_FEATURE (SSE4_2),
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__strncasecmp_sse42)
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IFUNC_IMPL_ADD (array, i, strncasecmp,
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HAS_CPU_FEATURE (SSSE3),
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__strncasecmp_ssse3)
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IFUNC_IMPL_ADD (array, i, strncasecmp, 1,
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__strncasecmp_sse2))
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/* Support sysdeps/x86_64/multiarch/strncase_l.c. */
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IFUNC_IMPL (i, name, strncasecmp_l,
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IFUNC_IMPL_ADD (array, i, strncasecmp_l,
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HAS_ARCH_FEATURE (AVX_Usable),
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__strncasecmp_l_avx)
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IFUNC_IMPL_ADD (array, i, strncasecmp_l,
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HAS_CPU_FEATURE (SSE4_2),
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__strncasecmp_l_sse42)
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IFUNC_IMPL_ADD (array, i, strncasecmp_l,
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HAS_CPU_FEATURE (SSSE3),
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__strncasecmp_l_ssse3)
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IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
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__strncasecmp_l_sse2))
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/* Support sysdeps/x86_64/multiarch/strncat.c. */
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IFUNC_IMPL (i, name, strncat,
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IFUNC_IMPL_ADD (array, i, strncat, HAS_ARCH_FEATURE (AVX2_Usable),
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__strncat_avx2)
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IFUNC_IMPL_ADD (array, i, strncat, HAS_CPU_FEATURE (SSSE3),
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__strncat_ssse3)
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IFUNC_IMPL_ADD (array, i, strncat, 1,
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__strncat_sse2_unaligned)
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IFUNC_IMPL_ADD (array, i, strncat, 1, __strncat_sse2))
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/* Support sysdeps/x86_64/multiarch/strncpy.c. */
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IFUNC_IMPL (i, name, strncpy,
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IFUNC_IMPL_ADD (array, i, strncpy, HAS_ARCH_FEATURE (AVX2_Usable),
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__strncpy_avx2)
|
|
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.c. */
|
|
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.c. */
|
|
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/wcschr.c. */
|
|
IFUNC_IMPL (i, name, wcschr,
|
|
IFUNC_IMPL_ADD (array, i, wcschr,
|
|
HAS_ARCH_FEATURE (AVX2_Usable),
|
|
__wcschr_avx2)
|
|
IFUNC_IMPL_ADD (array, i, wcschr, 1, __wcschr_sse2))
|
|
|
|
/* Support sysdeps/x86_64/multiarch/wcsrchr.c. */
|
|
IFUNC_IMPL (i, name, wcsrchr,
|
|
IFUNC_IMPL_ADD (array, i, wcsrchr,
|
|
HAS_ARCH_FEATURE (AVX2_Usable),
|
|
__wcsrchr_avx2)
|
|
IFUNC_IMPL_ADD (array, i, wcsrchr, 1, __wcsrchr_sse2))
|
|
|
|
/* Support sysdeps/x86_64/multiarch/wcscmp.c. */
|
|
IFUNC_IMPL (i, name, wcscmp,
|
|
IFUNC_IMPL_ADD (array, i, wcscmp,
|
|
HAS_ARCH_FEATURE (AVX2_Usable),
|
|
__wcscmp_avx2)
|
|
IFUNC_IMPL_ADD (array, i, wcscmp, 1, __wcscmp_sse2))
|
|
|
|
/* Support sysdeps/x86_64/multiarch/wcsncmp.c. */
|
|
IFUNC_IMPL (i, name, wcsncmp,
|
|
IFUNC_IMPL_ADD (array, i, wcsncmp,
|
|
HAS_ARCH_FEATURE (AVX2_Usable),
|
|
__wcsncmp_avx2)
|
|
IFUNC_IMPL_ADD (array, i, wcsncmp, 1, __wcsncmp_sse2))
|
|
|
|
/* Support sysdeps/x86_64/multiarch/wcscpy.c. */
|
|
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/wcslen.c. */
|
|
IFUNC_IMPL (i, name, wcslen,
|
|
IFUNC_IMPL_ADD (array, i, wcslen,
|
|
HAS_ARCH_FEATURE (AVX2_Usable),
|
|
__wcslen_avx2)
|
|
IFUNC_IMPL_ADD (array, i, wcslen, 1, __wcslen_sse2))
|
|
|
|
/* Support sysdeps/x86_64/multiarch/wcsnlen.c. */
|
|
IFUNC_IMPL (i, name, wcsnlen,
|
|
IFUNC_IMPL_ADD (array, i, wcsnlen,
|
|
HAS_ARCH_FEATURE (AVX2_Usable),
|
|
__wcsnlen_avx2)
|
|
IFUNC_IMPL_ADD (array, i, wcsnlen,
|
|
HAS_CPU_FEATURE (SSE4_1),
|
|
__wcsnlen_sse4_1)
|
|
IFUNC_IMPL_ADD (array, i, wcsnlen, 1, __wcsnlen_sse2))
|
|
|
|
/* Support sysdeps/x86_64/multiarch/wmemchr.c. */
|
|
IFUNC_IMPL (i, name, wmemchr,
|
|
IFUNC_IMPL_ADD (array, i, wmemchr,
|
|
HAS_ARCH_FEATURE (AVX2_Usable),
|
|
__wmemchr_avx2)
|
|
IFUNC_IMPL_ADD (array, i, wmemchr, 1, __wmemchr_sse2))
|
|
|
|
/* Support sysdeps/x86_64/multiarch/wmemcmp.c. */
|
|
IFUNC_IMPL (i, name, wmemcmp,
|
|
IFUNC_IMPL_ADD (array, i, wmemcmp,
|
|
(HAS_ARCH_FEATURE (AVX2_Usable)
|
|
&& HAS_CPU_FEATURE (MOVBE)),
|
|
__wmemcmp_avx2_movbe)
|
|
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.c. */
|
|
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.c. */
|
|
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)
|
|
IFUNC_IMPL_ADD (array, i, __memcpy_chk, 1,
|
|
__memcpy_chk_erms))
|
|
#endif
|
|
|
|
/* Support sysdeps/x86_64/multiarch/memcpy.c. */
|
|
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))
|
|
|
|
#ifdef SHARED
|
|
/* Support sysdeps/x86_64/multiarch/mempcpy_chk.c. */
|
|
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)
|
|
IFUNC_IMPL_ADD (array, i, __mempcpy_chk, 1,
|
|
__mempcpy_chk_erms))
|
|
#endif
|
|
|
|
/* Support sysdeps/x86_64/multiarch/mempcpy.c. */
|
|
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.c. */
|
|
IFUNC_IMPL (i, name, strncmp,
|
|
IFUNC_IMPL_ADD (array, i, strncmp,
|
|
HAS_ARCH_FEATURE (AVX2_Usable),
|
|
__strncmp_avx2)
|
|
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))
|
|
|
|
#ifdef SHARED
|
|
/* Support sysdeps/x86_64/multiarch/wmemset_chk.c. */
|
|
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;
|
|
}
|