/* Enumerate available IFUNC implementations of a function.  x86-64 version.
   Copyright (C) 2012-2024 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
   <https://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"

/* Fill ARRAY of MAX elements with IFUNC implementations for function
   NAME supported on target machine and return the number of valid
   entries.  Each set of implementations for a given function is sorted in
   descending order by ISA level.  */

size_t
__libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
			size_t max)
{
  size_t i = max;

  /* Support sysdeps/x86_64/multiarch/memcmpeq.c.  */
  IFUNC_IMPL (i, name, __memcmpeq,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memcmpeq,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memcmpeq_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memcmpeq,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memcmpeq_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memcmpeq,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memcmpeq_avx2_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, __memcmpeq,
				     1,
				     __memcmpeq_sse2))

  /* Support sysdeps/x86_64/multiarch/memchr.c.  */
  IFUNC_IMPL (i, name, memchr,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memchr_evex)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memchr_evex512)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memchr_evex_rtm)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memchr_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memchr_avx2_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, memchr,
				     1,
				     __memchr_sse2))

  /* Support sysdeps/x86_64/multiarch/memcmp.c.  */
  IFUNC_IMPL (i, name, memcmp,
	      /* NB: If any of these names change or if any new
	         implementations are added be sure to update
	         sysdeps/x86_64/memcmp-isa-default-impl.h.  */
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memcmp,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (MOVBE)),
				     __memcmp_evex_movbe)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memcmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (MOVBE)),
				     __memcmp_avx2_movbe)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memcmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (MOVBE)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memcmp_avx2_movbe_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, memcmp,
				     1,
				     __memcmp_sse2))

#ifdef SHARED
  /* Support sysdeps/x86_64/multiarch/memmove_chk.c.  */
  IFUNC_IMPL (i, name, __memmove_chk,
	      IFUNC_IMPL_ADD (array, i, __memmove_chk, 1,
			      __memmove_chk_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memmove_chk,
				     CPU_FEATURE_USABLE (AVX512F),
				     __memmove_chk_avx512_no_vzeroupper)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memmove_chk,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memmove_chk_avx512_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memmove_chk,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memmove_chk_avx512_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memmove_chk,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memmove_chk_evex_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memmove_chk,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memmove_chk_evex_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memmove_chk,
				     CPU_FEATURE_USABLE (AVX),
				     __memmove_chk_avx_unaligned)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memmove_chk,
				     CPU_FEATURE_USABLE (AVX),
				     __memmove_chk_avx_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memmove_chk,
				     (CPU_FEATURE_USABLE (AVX)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memmove_chk_avx_unaligned_rtm)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memmove_chk,
				     (CPU_FEATURE_USABLE (AVX)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memmove_chk_avx_unaligned_erms_rtm)
	      /* By V3 we assume fast aligned copy.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, __memmove_chk,
				     CPU_FEATURE_USABLE (SSSE3),
				     __memmove_chk_ssse3)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2 (SSSE3 is too
	         optimized around aligned copy to be better as general
	         purpose memmove).  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, __memmove_chk, 1,
				     __memmove_chk_sse2_unaligned)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, __memmove_chk, 1,
				     __memmove_chk_sse2_unaligned_erms))
#endif

  /* Support sysdeps/x86_64/multiarch/memmove.c.  */
  IFUNC_IMPL (i, name, memmove,
	      IFUNC_IMPL_ADD (array, i, memmove, 1,
			      __memmove_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memmove,
				     CPU_FEATURE_USABLE (AVX512F),
				     __memmove_avx512_no_vzeroupper)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memmove,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memmove_avx512_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memmove,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memmove_avx512_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memmove,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memmove_evex_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memmove,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memmove_evex_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memmove,
				     CPU_FEATURE_USABLE (AVX),
				     __memmove_avx_unaligned)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memmove,
				     CPU_FEATURE_USABLE (AVX),
				     __memmove_avx_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memmove,
				     (CPU_FEATURE_USABLE (AVX)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memmove_avx_unaligned_rtm)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memmove,
				     (CPU_FEATURE_USABLE (AVX)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memmove_avx_unaligned_erms_rtm)
	      /* By V3 we assume fast aligned copy.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, memmove,
				     CPU_FEATURE_USABLE (SSSE3),
				     __memmove_ssse3)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2 (SSSE3 is too
	         optimized around aligned copy to be better as general
	         purpose memmove).  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, memmove, 1,
				     __memmove_sse2_unaligned)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, memmove, 1,
				     __memmove_sse2_unaligned_erms))

  /* Support sysdeps/x86_64/multiarch/memrchr.c.  */
  IFUNC_IMPL (i, name, memrchr,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memrchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (LZCNT)),
				     __memrchr_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memrchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (LZCNT)),
				     __memrchr_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memrchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (LZCNT)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memrchr_avx2_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, memrchr,
				     1,
				     __memrchr_sse2))

#ifdef SHARED
  /* Support sysdeps/x86_64/multiarch/memset_chk.c.  */
  IFUNC_IMPL (i, name, __memset_chk,
	      IFUNC_IMPL_ADD (array, i, __memset_chk, 1,
			      __memset_chk_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memset_chk,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memset_chk_avx512_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memset_chk,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memset_chk_avx512_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memset_chk,
				     CPU_FEATURE_USABLE (AVX512F),
				     __memset_chk_avx512_no_vzeroupper)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memset_chk,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memset_chk_evex_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memset_chk,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memset_chk_evex_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memset_chk,
				     CPU_FEATURE_USABLE (AVX2),
				     __memset_chk_avx2_unaligned)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memset_chk,
				     CPU_FEATURE_USABLE (AVX2),
				     __memset_chk_avx2_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memset_chk,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memset_chk_avx2_unaligned_rtm)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memset_chk,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memset_chk_avx2_unaligned_erms_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, __memset_chk, 1,
				     __memset_chk_sse2_unaligned)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, __memset_chk, 1,
				     __memset_chk_sse2_unaligned_erms)
	      )
#endif

  /* Support sysdeps/x86_64/multiarch/memset.c.  */
  IFUNC_IMPL (i, name, memset,
	      IFUNC_IMPL_ADD (array, i, memset, 1,
			      __memset_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memset,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memset_avx512_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memset,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memset_avx512_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memset,
				     CPU_FEATURE_USABLE (AVX512F),
				     __memset_avx512_no_vzeroupper)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memset,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memset_evex_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memset,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __memset_evex_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memset,
				     CPU_FEATURE_USABLE (AVX2),
				     __memset_avx2_unaligned)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memset,
				     CPU_FEATURE_USABLE (AVX2),
				     __memset_avx2_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memset,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memset_avx2_unaligned_rtm)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memset,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memset_avx2_unaligned_erms_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, memset, 1,
				     __memset_sse2_unaligned)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, memset, 1,
				     __memset_sse2_unaligned_erms)
	     )

  /* Support sysdeps/x86_64/multiarch/rawmemchr.c.  */
  IFUNC_IMPL (i, name, rawmemchr,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, rawmemchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __rawmemchr_evex)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, rawmemchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __rawmemchr_evex512)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, rawmemchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __rawmemchr_evex_rtm)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, rawmemchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __rawmemchr_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, rawmemchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __rawmemchr_avx2_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, rawmemchr,
				     1,
				     __rawmemchr_sse2))

  /* Support sysdeps/x86_64/multiarch/strlen.c.  */
  IFUNC_IMPL (i, name, strlen,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strlen,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strlen_evex)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strlen,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strlen_evex512)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strlen,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strlen_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strlen,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strlen_avx2_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strlen,
				     1,
				     __strlen_sse2))

  /* Support sysdeps/x86_64/multiarch/strnlen.c.  */
  IFUNC_IMPL (i, name, strnlen,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strnlen,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strnlen_evex)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strnlen,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strnlen_evex512)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strnlen,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strnlen_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strnlen,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strnlen_avx2_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strnlen,
				     1,
				     __strnlen_sse2))

  /* Support sysdeps/x86_64/multiarch/stpncpy.c.  */
  IFUNC_IMPL (i, name, stpncpy,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, stpncpy,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)),
				     __stpncpy_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, stpncpy,
				     CPU_FEATURE_USABLE (AVX2),
				     __stpncpy_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, stpncpy,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __stpncpy_avx2_rtm)
	      /* ISA V2 wrapper for sse2_unaligned implementation because
	         the sse2_unaligned implementation is also used at ISA
	         level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, stpncpy,
				     1,
				     __stpncpy_sse2_unaligned))

  /* Support sysdeps/x86_64/multiarch/stpcpy.c.  */
  IFUNC_IMPL (i, name, stpcpy,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, stpcpy,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)),
				     __stpcpy_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, stpcpy,
				     CPU_FEATURE_USABLE (AVX2),
				     __stpcpy_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, stpcpy,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __stpcpy_avx2_rtm)
	      /* ISA V2 wrapper for sse2_unaligned implementation because
	         the sse2_unaligned implementation is also used at ISA
	         level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, stpcpy,
				     1,
				     __stpcpy_sse2_unaligned)
	      X86_IFUNC_IMPL_ADD_V1 (array, i, stpcpy,
				     1,
				     __stpcpy_sse2))

  /* Support sysdeps/x86_64/multiarch/strcasecmp_l.c.  */
  IFUNC_IMPL (i, name, strcasecmp,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strcasecmp,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strcasecmp_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strcasecmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strcasecmp_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strcasecmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strcasecmp_avx2_rtm)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strcasecmp,
				     CPU_FEATURE_USABLE (SSE4_2),
				     __strcasecmp_sse42)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strcasecmp,
				     1,
				     __strcasecmp_sse2))

  /* Support sysdeps/x86_64/multiarch/strcasecmp_l.c.  */
  IFUNC_IMPL (i, name, strcasecmp_l,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strcasecmp,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strcasecmp_l_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strcasecmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strcasecmp_l_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strcasecmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strcasecmp_l_avx2_rtm)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strcasecmp_l,
				     CPU_FEATURE_USABLE (SSE4_2),
				     __strcasecmp_l_sse42)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strcasecmp_l,
				     1,
				     __strcasecmp_l_sse2))

  /* Support sysdeps/x86_64/multiarch/strcat.c.  */
  IFUNC_IMPL (i, name, strcat,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strcat,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)),
				     __strcat_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strcat,
				     CPU_FEATURE_USABLE (AVX2),
				     __strcat_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strcat,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strcat_avx2_rtm)
	      /* ISA V2 wrapper for sse2_unaligned implementation because
	         the sse2_unaligned implementation is also used at ISA
	         level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strcat,
				     1,
				     __strcat_sse2_unaligned)
	      X86_IFUNC_IMPL_ADD_V1 (array, i, strcat,
				     1,
				     __strcat_sse2))

  /* Support sysdeps/x86_64/multiarch/strchr.c.  */
  IFUNC_IMPL (i, name, strchr,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strchr_evex)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)),
				     __strchr_evex512)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strchr_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strchr_avx2_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strchr,
				     1,
				     __strchr_sse2)
	      X86_IFUNC_IMPL_ADD_V1 (array, i, strchr,
				     1,
				     __strchr_sse2_no_bsf))

  /* Support sysdeps/x86_64/multiarch/strchrnul.c.  */
  IFUNC_IMPL (i, name, strchrnul,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strchrnul,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strchrnul_evex)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strchrnul,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)),
				     __strchrnul_evex512)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strchrnul,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strchrnul_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strchrnul,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strchrnul_avx2_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strchrnul,
				     1,
				     __strchrnul_sse2))

  /* Support sysdeps/x86_64/multiarch/strrchr.c.  */
  IFUNC_IMPL (i, name, strrchr,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strrchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI1)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strrchr_evex)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strrchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strrchr_evex512)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strrchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI1)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strrchr_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strrchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI1)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strrchr_avx2_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strrchr,
				     1,
				     __strrchr_sse2))

  /* Support sysdeps/x86_64/multiarch/strcmp.c.  */
  IFUNC_IMPL (i, name, strcmp,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strcmp,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strcmp_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strcmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strcmp_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strcmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strcmp_avx2_rtm)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strcmp,
                                 CPU_FEATURE_USABLE (SSE4_2),
                                 __strcmp_sse42)
	      /* ISA V2 wrapper for SSE2 implementations because the SSE2
	         implementations are also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strcmp,
				     1,
				     __strcmp_sse2_unaligned)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strcmp,
				     1,
				     __strcmp_sse2))

  /* Support sysdeps/x86_64/multiarch/strcpy.c.  */
  IFUNC_IMPL (i, name, strcpy,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strcpy,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)),
				     __strcpy_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strcpy,
				     CPU_FEATURE_USABLE (AVX2),
				     __strcpy_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strcpy,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strcpy_avx2_rtm)
	      /* ISA V2 wrapper for sse2_unaligned implementation because
	         the sse2_unaligned implementation is also used at ISA
	         level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strcpy,
				     1,
				     __strcpy_sse2_unaligned)
	      X86_IFUNC_IMPL_ADD_V1 (array, i, strcpy,
				     1,
				     __strcpy_sse2))

  /* Support sysdeps/x86_64/multiarch/strcspn.c.  */
  IFUNC_IMPL (i, name, strcspn,
	      /* All implementations of strcspn are built at all ISA
	         levels.  */
	      IFUNC_IMPL_ADD (array, i, strcspn, CPU_FEATURE_USABLE (SSE4_2),
			      __strcspn_sse42)
	      IFUNC_IMPL_ADD (array, i, strcspn, 1, __strcspn_generic))

  /* Support sysdeps/x86_64/multiarch/strncase_l.c.  */
  IFUNC_IMPL (i, name, strncasecmp,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strncasecmp,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strncasecmp_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strncasecmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strncasecmp_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strncasecmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strncasecmp_avx2_rtm)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strncasecmp,
				     CPU_FEATURE_USABLE (SSE4_2),
				     __strncasecmp_sse42)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strncasecmp,
				     1,
				     __strncasecmp_sse2))

  /* Support sysdeps/x86_64/multiarch/strncase_l.c.  */
  IFUNC_IMPL (i, name, strncasecmp_l,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strncasecmp,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      & CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strncasecmp_l_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strncasecmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strncasecmp_l_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strncasecmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strncasecmp_l_avx2_rtm)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strncasecmp_l,
				     CPU_FEATURE_USABLE (SSE4_2),
				     __strncasecmp_l_sse42)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strncasecmp_l,
				     1,
				     __strncasecmp_l_sse2))

  /* Support sysdeps/x86_64/multiarch/strncat.c.  */
  IFUNC_IMPL (i, name, strncat,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strncat,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)),
				     __strncat_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strncat,
				     CPU_FEATURE_USABLE (AVX2),
				     __strncat_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strncat,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strncat_avx2_rtm)
	      /* ISA V2 wrapper for sse2_unaligned implementation because
	         the sse2_unaligned implementation is also used at ISA
	         level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strncat,
				     1,
				     __strncat_sse2_unaligned))

  /* Support sysdeps/x86_64/multiarch/strncpy.c.  */
  IFUNC_IMPL (i, name, strncpy,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strncpy,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)),
				     __strncpy_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strncpy,
				     CPU_FEATURE_USABLE (AVX2),
				     __strncpy_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strncpy,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strncpy_avx2_rtm)
	      /* ISA V2 wrapper for sse2_unaligned implementation because
	         the sse2_unaligned implementation is also used at ISA
	         level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strncpy,
				     1,
				     __strncpy_sse2_unaligned))

  /* Support sysdeps/x86_64/multiarch/strpbrk.c.  */
  IFUNC_IMPL (i, name, strpbrk,
	      /* All implementations of strpbrk are built at all ISA
	         levels.  */
	      IFUNC_IMPL_ADD (array, i, strpbrk, CPU_FEATURE_USABLE (SSE4_2),
			      __strpbrk_sse42)
	      IFUNC_IMPL_ADD (array, i, strpbrk, 1, __strpbrk_generic))


  /* Support sysdeps/x86_64/multiarch/strspn.c.  */
  IFUNC_IMPL (i, name, strspn,
	      /* All implementations of strspn are built at all ISA
	         levels.  */
	      IFUNC_IMPL_ADD (array, i, strspn, CPU_FEATURE_USABLE (SSE4_2),
			      __strspn_sse42)
	      IFUNC_IMPL_ADD (array, i, strspn, 1, __strspn_generic))

  /* Support sysdeps/x86_64/multiarch/strstr.c.  */
  IFUNC_IMPL (i, name, strstr,
              IFUNC_IMPL_ADD (array, i, strstr,
                              (CPU_FEATURE_USABLE (AVX512VL)
                               && CPU_FEATURE_USABLE (AVX512BW)
                               && CPU_FEATURE_USABLE (AVX512DQ)
                               && CPU_FEATURE_USABLE (BMI2)),
                              __strstr_avx512)
	      IFUNC_IMPL_ADD (array, i, strstr, 1, __strstr_sse2_unaligned)
	      IFUNC_IMPL_ADD (array, i, strstr, 1, __strstr_generic))

  /* Support sysdeps/x86_64/multiarch/wcschr.c.  */
  IFUNC_IMPL (i, name, wcschr,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcschr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcschr_evex)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcschr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)),
				     __wcschr_evex512)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcschr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcschr_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcschr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __wcschr_avx2_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wcschr,
				     1,
				     __wcschr_sse2))

  /* Support sysdeps/x86_64/multiarch/wcsrchr.c.  */
  IFUNC_IMPL (i, name, wcsrchr,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcsrchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI1)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcsrchr_evex)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcsrchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcsrchr_evex512)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsrchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI1)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcsrchr_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsrchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI1)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __wcsrchr_avx2_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wcsrchr,
				     1,
				     __wcsrchr_sse2))

  /* Support sysdeps/x86_64/multiarch/wcscmp.c.  */
  IFUNC_IMPL (i, name, wcscmp,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcscmp,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcscmp_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcscmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcscmp_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcscmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __wcscmp_avx2_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wcscmp,
				     1,
				     __wcscmp_sse2))

  /* Support sysdeps/x86_64/multiarch/wcsncmp.c.  */
  IFUNC_IMPL (i, name, wcsncmp,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcsncmp,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcsncmp_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsncmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcsncmp_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsncmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __wcsncmp_avx2_rtm)
	      /* ISA V2 wrapper for GENERIC implementation because the
	         GENERIC implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wcsncmp,
				     1,
				     __wcsncmp_generic))

  /* Support sysdeps/x86_64/multiarch/wcscpy.c.  */
  IFUNC_IMPL (i, name, wcscpy,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcscpy,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcscpy_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcscpy,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcscpy_avx2)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wcscpy,
				     CPU_FEATURE_USABLE (SSSE3),
				     __wcscpy_ssse3)
	      X86_IFUNC_IMPL_ADD_V1 (array, i, wcscpy,
				     1,
				     __wcscpy_generic))

  /* Support sysdeps/x86_64/multiarch/wcsncpy.c.  */
  IFUNC_IMPL (i, name, wcsncpy,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcsncpy,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcsncpy_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsncpy,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcsncpy_avx2)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wcpncpy,
				     1,
				     __wcsncpy_generic))

  /* Support sysdeps/x86_64/multiarch/wcpcpy.c.  */
  IFUNC_IMPL (i, name, wcpcpy,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcpcpy,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcpcpy_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcpcpy,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcpcpy_avx2)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wcpcpy,
				     1,
				     __wcpcpy_generic))

  /* Support sysdeps/x86_64/multiarch/wcpncpy.c.  */
  IFUNC_IMPL (i, name, wcpncpy,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcpncpy,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcpncpy_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcpncpy,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcpncpy_avx2)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wcsncpy,
				     1,
				     __wcpncpy_generic))

  /* Support sysdeps/x86_64/multiarch/wcscat.c.  */
  IFUNC_IMPL (i, name, wcscat,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcscat,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcscat_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcscat,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcscat_avx2)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wcscat,
				     1,
				     __wcscat_generic))

  /* Support sysdeps/x86_64/multiarch/wcsncat.c.  */
  IFUNC_IMPL (i, name, wcsncat,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcsncat,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcsncat_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsncat,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcsncat_avx2)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wcsncat,
				     1,
				     __wcsncat_generic))

  /* Support sysdeps/x86_64/multiarch/wcslen.c.  */
  IFUNC_IMPL (i, name, wcslen,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcslen,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcslen_evex)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcslen,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcslen_evex512)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcslen,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcslen_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcslen,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __wcslen_avx2_rtm)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wcslen,
				     CPU_FEATURE_USABLE (SSE4_1),
				     __wcslen_sse4_1)
	      X86_IFUNC_IMPL_ADD_V1 (array, i, wcslen,
				     1,
				     __wcslen_sse2))

  /* Support sysdeps/x86_64/multiarch/wcsnlen.c.  */
  IFUNC_IMPL (i, name, wcsnlen,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcsnlen,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcsnlen_evex)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcsnlen,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcsnlen_evex512)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsnlen,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wcsnlen_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsnlen,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __wcsnlen_avx2_rtm)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wcsnlen,
				     CPU_FEATURE_USABLE (SSE4_1),
				     __wcsnlen_sse4_1)
	      X86_IFUNC_IMPL_ADD_V1 (array, i, wcsnlen,
				     1,
				     __wcsnlen_generic))

  /* Support sysdeps/x86_64/multiarch/wmemchr.c.  */
  IFUNC_IMPL (i, name, wmemchr,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wmemchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wmemchr_evex)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wmemchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wmemchr_evex512)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wmemchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wmemchr_evex_rtm)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wmemchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wmemchr_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wmemchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __wmemchr_avx2_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wmemchr,
				     1,
				     __wmemchr_sse2))

  /* Support sysdeps/x86_64/multiarch/wmemcmp.c.  */
  IFUNC_IMPL (i, name, wmemcmp,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wmemcmp,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (MOVBE)),
				     __wmemcmp_evex_movbe)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wmemcmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (MOVBE)),
				     __wmemcmp_avx2_movbe)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wmemcmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (MOVBE)
				      && CPU_FEATURE_USABLE (RTM)),
				     __wmemcmp_avx2_movbe_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wmemcmp,
				     1,
				     __wmemcmp_sse2))

  /* Support sysdeps/x86_64/multiarch/wmemset.c.  */
  IFUNC_IMPL (i, name, wmemset,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wmemset,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wmemset_evex_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, wmemset,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wmemset_avx512_unaligned)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wmemset,
				     CPU_FEATURE_USABLE (AVX2),
				     __wmemset_avx2_unaligned)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, wmemset,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __wmemset_avx2_unaligned_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, wmemset, 1,
				     __wmemset_sse2_unaligned))

#ifdef SHARED
  /* Support sysdeps/x86_64/multiarch/memcpy_chk.c.  */
  IFUNC_IMPL (i, name, __memcpy_chk,
	      IFUNC_IMPL_ADD (array, i, __memcpy_chk, 1,
			      __memcpy_chk_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memcpy_chk,
				     CPU_FEATURE_USABLE (AVX512F),
				     __memcpy_chk_avx512_no_vzeroupper)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memcpy_chk,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memcpy_chk_avx512_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memcpy_chk,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memcpy_chk_avx512_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memcpy_chk,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memcpy_chk_evex_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __memcpy_chk,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memcpy_chk_evex_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memcpy_chk,
				     CPU_FEATURE_USABLE (AVX),
				     __memcpy_chk_avx_unaligned)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memcpy_chk,
				     CPU_FEATURE_USABLE (AVX),
				     __memcpy_chk_avx_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memcpy_chk,
				     (CPU_FEATURE_USABLE (AVX)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memcpy_chk_avx_unaligned_rtm)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __memcpy_chk,
				     (CPU_FEATURE_USABLE (AVX)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memcpy_chk_avx_unaligned_erms_rtm)
	      /* By V3 we assume fast aligned copy.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, __memcpy_chk,
				     CPU_FEATURE_USABLE (SSSE3),
				     __memcpy_chk_ssse3)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2 (SSSE3 is too
	         optimized around aligned copy to be better as general
	         purpose memmove).  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, __memcpy_chk, 1,
				     __memcpy_chk_sse2_unaligned)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, __memcpy_chk, 1,
				     __memcpy_chk_sse2_unaligned_erms))
#endif

  /* Support sysdeps/x86_64/multiarch/memcpy.c.  */
  IFUNC_IMPL (i, name, memcpy,
	      IFUNC_IMPL_ADD (array, i, memcpy, 1,
			      __memcpy_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memcpy,
				     CPU_FEATURE_USABLE (AVX512F),
				     __memcpy_avx512_no_vzeroupper)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memcpy,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memcpy_avx512_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memcpy,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memcpy_avx512_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memcpy,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memcpy_evex_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memcpy,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __memcpy_evex_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memcpy,
				     CPU_FEATURE_USABLE (AVX),
				     __memcpy_avx_unaligned)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memcpy,
				     CPU_FEATURE_USABLE (AVX),
				     __memcpy_avx_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memcpy,
				     (CPU_FEATURE_USABLE (AVX)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memcpy_avx_unaligned_rtm)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memcpy,
				     (CPU_FEATURE_USABLE (AVX)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memcpy_avx_unaligned_erms_rtm)
	      /* By V3 we assume fast aligned copy.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, memcpy,
				     CPU_FEATURE_USABLE (SSSE3),
				     __memcpy_ssse3)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2 (SSSE3 is too
	         optimized around aligned copy to be better as general
	         purpose memmove).  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, memcpy, 1,
				     __memcpy_sse2_unaligned)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, memcpy, 1,
				     __memcpy_sse2_unaligned_erms))

#ifdef SHARED
  /* Support sysdeps/x86_64/multiarch/mempcpy_chk.c.  */
  IFUNC_IMPL (i, name, __mempcpy_chk,
	      IFUNC_IMPL_ADD (array, i, __mempcpy_chk, 1,
			      __mempcpy_chk_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __mempcpy_chk,
				     CPU_FEATURE_USABLE (AVX512F),
				     __mempcpy_chk_avx512_no_vzeroupper)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __mempcpy_chk,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __mempcpy_chk_avx512_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __mempcpy_chk,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __mempcpy_chk_avx512_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __mempcpy_chk,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __mempcpy_chk_evex_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __mempcpy_chk,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __mempcpy_chk_evex_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __mempcpy_chk,
				     CPU_FEATURE_USABLE (AVX),
				     __mempcpy_chk_avx_unaligned)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __mempcpy_chk,
				     CPU_FEATURE_USABLE (AVX),
				     __mempcpy_chk_avx_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __mempcpy_chk,
				     (CPU_FEATURE_USABLE (AVX)
				      && CPU_FEATURE_USABLE (RTM)),
				     __mempcpy_chk_avx_unaligned_rtm)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __mempcpy_chk,
				     (CPU_FEATURE_USABLE (AVX)
				      && CPU_FEATURE_USABLE (RTM)),
				     __mempcpy_chk_avx_unaligned_erms_rtm)
	      /* By V3 we assume fast aligned copy.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, __mempcpy_chk,
				     CPU_FEATURE_USABLE (SSSE3),
				     __mempcpy_chk_ssse3)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2 (SSSE3 is too
	         optimized around aligned copy to be better as general
	         purpose memmove).  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, __mempcpy_chk, 1,
				     __mempcpy_chk_sse2_unaligned)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, __mempcpy_chk, 1,
				     __mempcpy_chk_sse2_unaligned_erms))
#endif

  /* Support sysdeps/x86_64/multiarch/mempcpy.c.  */
  IFUNC_IMPL (i, name, mempcpy,
	      IFUNC_IMPL_ADD (array, i, mempcpy, 1,
			      __mempcpy_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, mempcpy,
				     CPU_FEATURE_USABLE (AVX512F),
				     __mempcpy_avx512_no_vzeroupper)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, mempcpy,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __mempcpy_avx512_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, mempcpy,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __mempcpy_avx512_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, mempcpy,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __mempcpy_evex_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, mempcpy,
				     CPU_FEATURE_USABLE (AVX512VL),
				     __mempcpy_evex_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, mempcpy,
				     CPU_FEATURE_USABLE (AVX),
				     __mempcpy_avx_unaligned)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, mempcpy,
				     CPU_FEATURE_USABLE (AVX),
				     __mempcpy_avx_unaligned_erms)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, mempcpy,
				     (CPU_FEATURE_USABLE (AVX)
				      && CPU_FEATURE_USABLE (RTM)),
				     __mempcpy_avx_unaligned_rtm)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, mempcpy,
				     (CPU_FEATURE_USABLE (AVX)
				      && CPU_FEATURE_USABLE (RTM)),
				     __mempcpy_avx_unaligned_erms_rtm)
	      /* By V3 we assume fast aligned copy.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, mempcpy,
				     CPU_FEATURE_USABLE (SSSE3),
				     __mempcpy_ssse3)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2 (SSSE3 is too
	         optimized around aligned copy to be better as general
	         purpose memmove).  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, mempcpy, 1,
				     __mempcpy_sse2_unaligned)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, mempcpy, 1,
				     __mempcpy_sse2_unaligned_erms))

  /* Support sysdeps/x86_64/multiarch/strncmp.c.  */
  IFUNC_IMPL (i, name, strncmp,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, strncmp,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strncmp_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strncmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __strncmp_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, strncmp,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (BMI2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __strncmp_avx2_rtm)
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strncmp,
				     CPU_FEATURE_USABLE (SSE4_2),
				     __strncmp_sse42)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, strncmp,
				     1,
				     __strncmp_sse2))

#ifdef SHARED
  /* Support sysdeps/x86_64/multiarch/wmemset_chk.c.  */
  IFUNC_IMPL (i, name, __wmemset_chk,
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __wmemset_chk,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wmemset_chk_evex_unaligned)
	      X86_IFUNC_IMPL_ADD_V4 (array, i, __wmemset_chk,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (BMI2)),
				     __wmemset_chk_avx512_unaligned)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __wmemset_chk,
				     CPU_FEATURE_USABLE (AVX2),
				     __wmemset_chk_avx2_unaligned)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, __wmemset_chk,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (RTM)),
				     __wmemset_chk_avx2_unaligned_rtm)
	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
	         implementation is also used at ISA level 2.  */
	      X86_IFUNC_IMPL_ADD_V2 (array, i, __wmemset_chk, 1,
				     __wmemset_chk_sse2_unaligned))
#endif

  return 0;
}