diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile
index 3627c5659f..688eb2d7c4 100644
--- a/sysdeps/x86_64/Makefile
+++ b/sysdeps/x86_64/Makefile
@@ -188,8 +188,13 @@ endif
 ifeq ($(subdir),wcsmbs)
 
 sysdep_routines += \
+  wcpcpy-generic \
+  wcpncpy-generic \
+  wcscat-generic \
   wcscpy-generic \
+  wcsncat-generic \
   wcsncmp-generic \
+  wcsncpy-generic \
   wcsnlen-generic \
 # sysdep_routines
 
diff --git a/sysdeps/x86_64/multiarch/Makefile b/sysdeps/x86_64/multiarch/Makefile
index 066bfa48d9..f848fc0e28 100644
--- a/sysdeps/x86_64/multiarch/Makefile
+++ b/sysdeps/x86_64/multiarch/Makefile
@@ -131,6 +131,18 @@ endif
 
 ifeq ($(subdir),wcsmbs)
 sysdep_routines += \
+  wcpcpy-avx2 \
+  wcpcpy-avx2-rtm \
+  wcpcpy-evex \
+  wcpcpy-generic \
+  wcpncpy-avx2 \
+  wcpncpy-avx2-rtm \
+  wcpncpy-evex \
+  wcpncpy-generic \
+  wcscat-avx2 \
+  wcscat-avx2-rtm \
+  wcscat-evex \
+  wcscat-generic \
   wcschr-avx2 \
   wcschr-avx2-rtm \
   wcschr-evex \
@@ -140,6 +152,10 @@ sysdep_routines += \
   wcscmp-avx2-rtm \
   wcscmp-evex \
   wcscmp-sse2 \
+  wcscpy-avx2 \
+  wcscpy-avx2-rtm \
+  wcscpy-evex \
+  wcscpy-generic \
   wcscpy-ssse3 \
   wcslen-avx2 \
   wcslen-avx2-rtm \
@@ -147,9 +163,17 @@ sysdep_routines += \
   wcslen-evex512 \
   wcslen-sse2 \
   wcslen-sse4_1 \
+  wcsncat-avx2 \
+  wcsncat-avx2-rtm \
+  wcsncat-evex \
+  wcsncat-generic \
   wcsncmp-avx2 \
   wcsncmp-avx2-rtm \
   wcsncmp-evex \
+  wcsncpy-avx2 \
+  wcsncpy-avx2-rtm \
+  wcsncpy-evex \
+  wcsncpy-generic \
   wcsnlen-avx2 \
   wcsnlen-avx2-rtm \
   wcsnlen-evex \
@@ -163,8 +187,8 @@ sysdep_routines += \
   wmemchr-avx2 \
   wmemchr-avx2-rtm \
   wmemchr-evex \
-  wmemchr-evex512 \
   wmemchr-evex-rtm \
+  wmemchr-evex512 \
   wmemchr-sse2 \
   wmemcmp-avx2-movbe \
   wmemcmp-avx2-movbe-rtm \
diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
index 7cebee7ec7..71e8953e91 100644
--- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
@@ -901,16 +901,145 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 
   /* Support sysdeps/x86_64/multiarch/wcscpy.c.  */
   IFUNC_IMPL (i, name, wcscpy,
-	      /* ISA V4 wrapper for SSSE3 implementation because
-	         the SSSE3 implementation is also used at ISA
-	         level 3/4.  */
 	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcscpy,
+				     (CPU_FEATURE_USABLE (AVX512VL)
+				      && CPU_FEATURE_USABLE (AVX512BW)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
+				     __wcscpy_evex)
+	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcscpy,
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
+				     __wcscpy_avx2)
+	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcscpy,
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)
+				      && CPU_FEATURE_USABLE (RTM)),
+				     __wcscpy_avx2_rtm)
+	      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 (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
+				     __wcsncpy_evex)
+	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsncpy,
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
+				     __wcsncpy_avx2)
+	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsncpy,
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)
+				      && CPU_FEATURE_USABLE (RTM)),
+				     __wcsncpy_avx2_rtm)
+	      X86_IFUNC_IMPL_ADD_V1 (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 (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
+				     __wcpcpy_evex)
+	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcpcpy,
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
+				     __wcpcpy_avx2)
+	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcpcpy,
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)
+				      && CPU_FEATURE_USABLE (RTM)),
+				     __wcpcpy_avx2_rtm)
+	      X86_IFUNC_IMPL_ADD_V1 (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 (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
+				     __wcpncpy_evex)
+	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcpncpy,
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
+				     __wcpncpy_avx2)
+	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcpncpy,
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)
+				      && CPU_FEATURE_USABLE (RTM)),
+				     __wcpncpy_avx2_rtm)
+	      X86_IFUNC_IMPL_ADD_V1 (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 (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
+				     __wcscat_evex)
+	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcscat,
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
+				     __wcscat_avx2)
+	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcscat,
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)
+				      && CPU_FEATURE_USABLE (RTM)),
+				     __wcscat_avx2_rtm)
+	      X86_IFUNC_IMPL_ADD_V1 (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 (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
+				     __wcsncat_evex)
+	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsncat,
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
+				     __wcsncat_avx2)
+	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsncat,
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)
+				      && CPU_FEATURE_USABLE (RTM)),
+				     __wcsncat_avx2_rtm)
+	      X86_IFUNC_IMPL_ADD_V1 (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,
diff --git a/sysdeps/x86_64/multiarch/ifunc-wcs.h b/sysdeps/x86_64/multiarch/ifunc-wcs.h
new file mode 100644
index 0000000000..cda633d8fb
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/ifunc-wcs.h
@@ -0,0 +1,60 @@
+/* Common definition for ifunc selections optimized wide-character
+   string copy functions.
+
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2022 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 <init-arch.h>
+
+#ifndef GENERIC
+# define GENERIC generic
+#endif
+
+extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden;
+
+extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2) attribute_hidden;
+extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_rtm) attribute_hidden;
+
+extern __typeof (REDIRECT_NAME) OPTIMIZE (GENERIC) attribute_hidden;
+
+static inline void *
+IFUNC_SELECTOR (void)
+{
+  const struct cpu_features *cpu_features = __get_cpu_features ();
+
+  if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX2)
+      && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, BMI1)
+      && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, BMI2)
+      && X86_ISA_CPU_FEATURES_ARCH_P (cpu_features,
+				      AVX_Fast_Unaligned_Load, ))
+    {
+      if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512VL)
+	  && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512BW))
+	return OPTIMIZE (evex);
+
+      if (CPU_FEATURE_USABLE_P (cpu_features, RTM))
+	return OPTIMIZE (avx2_rtm);
+
+      if (X86_ISA_CPU_FEATURES_ARCH_P (cpu_features,
+				       Prefer_No_VZEROUPPER, !))
+	return OPTIMIZE (avx2);
+
+    }
+
+  return OPTIMIZE (GENERIC);
+}
diff --git a/sysdeps/x86_64/multiarch/wcpcpy-avx2-rtm.S b/sysdeps/x86_64/multiarch/wcpcpy-avx2-rtm.S
new file mode 100644
index 0000000000..756280a3ab
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcpcpy-avx2-rtm.S
@@ -0,0 +1,3 @@
+#define WCPCPY	__wcpcpy_avx2_rtm
+#include "x86-avx2-rtm-vecs.h"
+#include "wcpcpy-avx2.S"
diff --git a/sysdeps/x86_64/multiarch/wcpcpy-avx2.S b/sysdeps/x86_64/multiarch/wcpcpy-avx2.S
new file mode 100644
index 0000000000..0fffd912d3
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcpcpy-avx2.S
@@ -0,0 +1,8 @@
+#ifndef WCPCPY
+# define WCPCPY	__wcpcpy_avx2
+#endif
+
+#define USE_AS_STPCPY
+#define USE_AS_WCSCPY
+#define STRCPY	WCPCPY
+#include "strcpy-avx2.S"
diff --git a/sysdeps/x86_64/multiarch/wcpcpy-evex.S b/sysdeps/x86_64/multiarch/wcpcpy-evex.S
new file mode 100644
index 0000000000..ac6429cc07
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcpcpy-evex.S
@@ -0,0 +1,8 @@
+#ifndef WCPCPY
+# define WCPCPY	__wcpcpy_evex
+#endif
+
+#define USE_AS_STPCPY
+#define USE_AS_WCSCPY
+#define STRCPY	WCPCPY
+#include "strcpy-evex.S"
diff --git a/sysdeps/x86_64/multiarch/wcpcpy-generic.c b/sysdeps/x86_64/multiarch/wcpcpy-generic.c
new file mode 100644
index 0000000000..0ba29b081f
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcpcpy-generic.c
@@ -0,0 +1,27 @@
+/* wcpcpy.
+   Copyright (C) 2022 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/>.  */
+
+/* We always need to build this implementation as strspn-sse4 needs to
+   be able to fallback to it.  */
+#include <isa-level.h>
+#if ISA_SHOULD_BUILD (2)
+
+# define WCPCPY __wcpcpy_generic
+# include <wcsmbs/wcpcpy.c>
+
+#endif
diff --git a/sysdeps/x86_64/multiarch/wcpcpy.c b/sysdeps/x86_64/multiarch/wcpcpy.c
new file mode 100644
index 0000000000..8f96ddbc99
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcpcpy.c
@@ -0,0 +1,37 @@
+/* Multiple versions of wcpcpy.
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2022 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/>.  */
+
+/* Define multiple versions only for the definition in libc.  */
+#if IS_IN (libc)
+# define __wcpcpy __redirect_wcpcpy
+# include <wchar.h>
+# undef __wcpcpy
+
+# define SYMBOL_NAME wcpcpy
+# include <init-arch.h>
+
+# include "ifunc-wcs.h"
+
+libc_ifunc_redirected (__redirect_wcpcpy, __wcpcpy, IFUNC_SELECTOR ());
+weak_alias (__wcpcpy, wcpcpy)
+# ifdef SHARED
+__hidden_ver1 (__wcpcpy, __GI___wcpcpy, __redirect_wcpcpy)
+  __attribute__((visibility ("hidden"))) __attribute_copy__ (wcpcpy);
+# endif
+#endif
diff --git a/sysdeps/x86_64/multiarch/wcpncpy-avx2-rtm.S b/sysdeps/x86_64/multiarch/wcpncpy-avx2-rtm.S
new file mode 100644
index 0000000000..80600d6b01
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcpncpy-avx2-rtm.S
@@ -0,0 +1,3 @@
+#define WCPNCPY	__wcpncpy_avx2_rtm
+#include "x86-avx2-rtm-vecs.h"
+#include "wcpncpy-avx2.S"
diff --git a/sysdeps/x86_64/multiarch/wcpncpy-avx2.S b/sysdeps/x86_64/multiarch/wcpncpy-avx2.S
new file mode 100644
index 0000000000..b7e594f7b7
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcpncpy-avx2.S
@@ -0,0 +1,8 @@
+#ifndef WCPNCPY
+# define WCPNCPY	__wcpncpy_avx2
+#endif
+
+#define USE_AS_WCSCPY
+#define USE_AS_STPCPY
+#define STRNCPY	WCPNCPY
+#include "strncpy-avx2.S"
diff --git a/sysdeps/x86_64/multiarch/wcpncpy-evex.S b/sysdeps/x86_64/multiarch/wcpncpy-evex.S
new file mode 100644
index 0000000000..62ddb694fe
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcpncpy-evex.S
@@ -0,0 +1,8 @@
+#ifndef WCPNCPY
+# define WCPNCPY	__wcpncpy_evex
+#endif
+
+#define USE_AS_WCSCPY
+#define USE_AS_STPCPY
+#define STRNCPY	WCPNCPY
+#include "strncpy-evex.S"
diff --git a/sysdeps/x86_64/multiarch/wcpncpy-generic.c b/sysdeps/x86_64/multiarch/wcpncpy-generic.c
new file mode 100644
index 0000000000..4aab4ecdd2
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcpncpy-generic.c
@@ -0,0 +1,27 @@
+/* wcpncpy.
+   Copyright (C) 2022 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/>.  */
+
+/* We always need to build this implementation as strspn-sse4 needs to
+   be able to fallback to it.  */
+#include <isa-level.h>
+#if ISA_SHOULD_BUILD (2)
+
+# define WCPNCPY __wcpncpy_generic
+# include <wcsmbs/wcpncpy.c>
+
+#endif
diff --git a/sysdeps/x86_64/multiarch/wcpncpy.c b/sysdeps/x86_64/multiarch/wcpncpy.c
new file mode 100644
index 0000000000..ed8f307e07
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcpncpy.c
@@ -0,0 +1,37 @@
+/* Multiple versions of wcpncpy.
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2022 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/>.  */
+
+/* Define multiple versions only for the definition in libc.  */
+#if IS_IN (libc)
+# define __wcpncpy __redirect_wcpncpy
+# include <wchar.h>
+# undef __wcpncpy
+
+# define SYMBOL_NAME wcpncpy
+# include <init-arch.h>
+
+# include "ifunc-wcs.h"
+
+libc_ifunc_redirected (__redirect_wcpncpy, __wcpncpy, IFUNC_SELECTOR ());
+weak_alias (__wcpncpy, wcpncpy)
+# ifdef SHARED
+__hidden_ver1 (__wcpncpy, __GI___wcpncpy, __redirect_wcpncpy)
+  __attribute__((visibility ("hidden"))) __attribute_copy__ (wcpncpy);
+# endif
+#endif
diff --git a/sysdeps/x86_64/multiarch/wcscat-avx2-rtm.S b/sysdeps/x86_64/multiarch/wcscat-avx2-rtm.S
new file mode 100644
index 0000000000..e99449a2dc
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcscat-avx2-rtm.S
@@ -0,0 +1,3 @@
+#define WCSCAT	__wcscat_avx2_rtm
+#include "x86-avx2-rtm-vecs.h"
+#include "wcscat-avx2.S"
diff --git a/sysdeps/x86_64/multiarch/wcscat-avx2.S b/sysdeps/x86_64/multiarch/wcscat-avx2.S
new file mode 100644
index 0000000000..a20f23c09d
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcscat-avx2.S
@@ -0,0 +1,10 @@
+#ifndef WCSCAT
+# define WCSCAT	__wcscat_avx2
+#endif
+
+#define USE_AS_WCSCPY
+#define USE_AS_STRCAT
+
+#define STRCPY	WCSCAT
+
+#include "strcpy-avx2.S"
diff --git a/sysdeps/x86_64/multiarch/wcscat-evex.S b/sysdeps/x86_64/multiarch/wcscat-evex.S
new file mode 100644
index 0000000000..1d017e4899
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcscat-evex.S
@@ -0,0 +1,9 @@
+#ifndef WCSCAT
+# define WCSCAT	__wcscat_evex
+#endif
+
+#define USE_AS_WCSCPY
+#define USE_AS_STRCAT
+
+#define STRCPY	WCSCAT
+#include "strcpy-evex.S"
diff --git a/sysdeps/x86_64/multiarch/wcscat-generic.c b/sysdeps/x86_64/multiarch/wcscat-generic.c
new file mode 100644
index 0000000000..6476f85bbb
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcscat-generic.c
@@ -0,0 +1,27 @@
+/* wcscat.
+   Copyright (C) 2022 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/>.  */
+
+/* We always need to build this implementation as strspn-sse4 needs to
+   be able to fallback to it.  */
+#include <isa-level.h>
+#if ISA_SHOULD_BUILD (2)
+
+# define WCSCAT __wcscat_generic
+# include <wcsmbs/wcscat.c>
+
+#endif
diff --git a/sysdeps/x86_64/multiarch/wcscat.c b/sysdeps/x86_64/multiarch/wcscat.c
new file mode 100644
index 0000000000..3277c44561
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcscat.c
@@ -0,0 +1,37 @@
+/* Multiple versions of wcscat.
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2022 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/>.  */
+
+/* Define multiple versions only for the definition in libc.  */
+#if IS_IN (libc)
+# define __wcscat __redirect_wcscat
+# include <wchar.h>
+# undef __wcscat
+
+# define SYMBOL_NAME wcscat
+# include <init-arch.h>
+
+# include "ifunc-wcs.h"
+
+libc_ifunc_redirected (__redirect_wcscat, __wcscat, IFUNC_SELECTOR ());
+weak_alias (__wcscat, wcscat)
+# ifdef SHARED
+__hidden_ver1 (__wcscat, __GI___wcscat, __redirect_wcscat)
+  __attribute__((visibility ("hidden"))) __attribute_copy__ (wcscat);
+# endif
+#endif
diff --git a/sysdeps/x86_64/multiarch/wcscpy-avx2-rtm.S b/sysdeps/x86_64/multiarch/wcscpy-avx2-rtm.S
new file mode 100644
index 0000000000..2f800c8d3e
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcscpy-avx2-rtm.S
@@ -0,0 +1,3 @@
+#define WCSCPY	__wcscpy_avx2_rtm
+#include "x86-avx2-rtm-vecs.h"
+#include "wcscpy-avx2.S"
diff --git a/sysdeps/x86_64/multiarch/wcscpy-avx2.S b/sysdeps/x86_64/multiarch/wcscpy-avx2.S
new file mode 100644
index 0000000000..6bc509da07
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcscpy-avx2.S
@@ -0,0 +1,7 @@
+#ifndef WCSCPY
+# define WCSCPY	__wcscpy_avx2
+#endif
+
+#define USE_AS_WCSCPY
+#define STRCPY	WCSCPY
+#include "strcpy-avx2.S"
diff --git a/sysdeps/x86_64/multiarch/wcscpy-evex.S b/sysdeps/x86_64/multiarch/wcscpy-evex.S
new file mode 100644
index 0000000000..1069a8e224
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcscpy-evex.S
@@ -0,0 +1,7 @@
+#ifndef WCSCPY
+# define WCSCPY	__wcscpy_evex
+#endif
+
+#define USE_AS_WCSCPY
+#define STRCPY	WCSCPY
+#include "strcpy-evex.S"
diff --git a/sysdeps/x86_64/multiarch/wcscpy-generic.c b/sysdeps/x86_64/multiarch/wcscpy-generic.c
index 93d314aaad..600d606c45 100644
--- a/sysdeps/x86_64/multiarch/wcscpy-generic.c
+++ b/sysdeps/x86_64/multiarch/wcscpy-generic.c
@@ -18,8 +18,7 @@
 
 
 #include <isa-level.h>
-
-#if ISA_SHOULD_BUILD (1)
+#if ISA_SHOULD_BUILD (2)
 
 # define WCSCPY  __wcscpy_generic
 # include <wcsmbs/wcscpy.c>
diff --git a/sysdeps/x86_64/multiarch/wcscpy.c b/sysdeps/x86_64/multiarch/wcscpy.c
index 92c917b6b4..7f6387817b 100644
--- a/sysdeps/x86_64/multiarch/wcscpy.c
+++ b/sysdeps/x86_64/multiarch/wcscpy.c
@@ -26,6 +26,11 @@
 # define SYMBOL_NAME wcscpy
 # include <init-arch.h>
 
+extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden;
+
+extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2) attribute_hidden;
+extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_rtm) attribute_hidden;
+
 extern __typeof (REDIRECT_NAME) OPTIMIZE (ssse3) attribute_hidden;
 
 extern __typeof (REDIRECT_NAME) OPTIMIZE (generic) attribute_hidden;
@@ -35,6 +40,22 @@ IFUNC_SELECTOR (void)
 {
   const struct cpu_features* cpu_features = __get_cpu_features ();
 
+  if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX2)
+      && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, BMI1)
+      && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, BMI2)
+      && X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, AVX_Fast_Unaligned_Load, ))
+    {
+      if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512VL)
+	  && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512BW))
+	return OPTIMIZE (evex);
+
+      if (CPU_FEATURE_USABLE_P (cpu_features, RTM))
+	return OPTIMIZE (avx2_rtm);
+
+      if (X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER, !))
+	return OPTIMIZE (avx2);
+    }
+
   if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, SSSE3))
     return OPTIMIZE (ssse3);
 
diff --git a/sysdeps/x86_64/multiarch/wcsncat-avx2-rtm.S b/sysdeps/x86_64/multiarch/wcsncat-avx2-rtm.S
new file mode 100644
index 0000000000..609d6e69c0
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcsncat-avx2-rtm.S
@@ -0,0 +1,3 @@
+#define WCSNCAT	__wcsncat_avx2_rtm
+#include "x86-avx2-rtm-vecs.h"
+#include "wcsncat-avx2.S"
diff --git a/sysdeps/x86_64/multiarch/wcsncat-avx2.S b/sysdeps/x86_64/multiarch/wcsncat-avx2.S
new file mode 100644
index 0000000000..a72105b7e9
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcsncat-avx2.S
@@ -0,0 +1,9 @@
+#ifndef WCSNCAT
+# define WCSNCAT	__wcsncat_avx2
+#endif
+
+#define USE_AS_WCSCPY
+#define USE_AS_STRCAT
+
+#define STRNCAT	WCSNCAT
+#include "strncat-avx2.S"
diff --git a/sysdeps/x86_64/multiarch/wcsncat-evex.S b/sysdeps/x86_64/multiarch/wcsncat-evex.S
new file mode 100644
index 0000000000..392215950a
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcsncat-evex.S
@@ -0,0 +1,9 @@
+#ifndef WCSCAT
+# define WCSCAT	__wcsncat_evex
+#endif
+
+#define USE_AS_WCSCPY
+#define USE_AS_STRCAT
+
+#define STRNCAT	WCSCAT
+#include "strncat-evex.S"
diff --git a/sysdeps/x86_64/multiarch/wcsncat-generic.c b/sysdeps/x86_64/multiarch/wcsncat-generic.c
new file mode 100644
index 0000000000..9ced02b35e
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcsncat-generic.c
@@ -0,0 +1,27 @@
+/* wcsncat.
+   Copyright (C) 2022 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/>.  */
+
+/* We always need to build this implementation as strspn-sse4 needs to
+   be able to fallback to it.  */
+#include <isa-level.h>
+#if ISA_SHOULD_BUILD (2)
+
+# define WCSNCAT __wcsncat_generic
+# include <wcsmbs/wcsncat.c>
+
+#endif
diff --git a/sysdeps/x86_64/multiarch/wcsncat.c b/sysdeps/x86_64/multiarch/wcsncat.c
new file mode 100644
index 0000000000..49c46aef08
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcsncat.c
@@ -0,0 +1,34 @@
+/* Multiple versions of wcsncat.
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2022 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/>.  */
+
+/* Define multiple versions only for the definition in libc.  */
+#if IS_IN (libc)
+# define wcsncat __redirect_wcsncat
+# include <wchar.h>
+# undef wcsncat
+
+# define SYMBOL_NAME wcsncat
+# include "ifunc-wcs.h"
+
+libc_ifunc_redirected (__redirect_wcsncat, wcsncat, IFUNC_SELECTOR ());
+# ifdef SHARED
+__hidden_ver1 (wcsncat, __GI_wcsncat, __redirect_wcsncat)
+  __attribute__((visibility ("hidden"))) __attribute_copy__ (wcsncat);
+# endif
+#endif
diff --git a/sysdeps/x86_64/multiarch/wcsncpy-avx2-rtm.S b/sysdeps/x86_64/multiarch/wcsncpy-avx2-rtm.S
new file mode 100644
index 0000000000..cab5a6b820
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcsncpy-avx2-rtm.S
@@ -0,0 +1,3 @@
+#define WCSNCPY	__wcsncpy_avx2_rtm
+#include "x86-avx2-rtm-vecs.h"
+#include "wcsncpy-avx2.S"
diff --git a/sysdeps/x86_64/multiarch/wcsncpy-avx2.S b/sysdeps/x86_64/multiarch/wcsncpy-avx2.S
new file mode 100644
index 0000000000..3a1a8a372c
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcsncpy-avx2.S
@@ -0,0 +1,7 @@
+#ifndef WCSNCPY
+# define WCSNCPY	__wcsncpy_avx2
+#endif
+
+#define USE_AS_WCSCPY
+#define STRNCPY	WCSNCPY
+#include "strncpy-avx2.S"
diff --git a/sysdeps/x86_64/multiarch/wcsncpy-evex.S b/sysdeps/x86_64/multiarch/wcsncpy-evex.S
new file mode 100644
index 0000000000..2debb8fd6b
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcsncpy-evex.S
@@ -0,0 +1,7 @@
+#ifndef WCSNCPY
+# define WCSNCPY	__wcsncpy_evex
+#endif
+
+#define USE_AS_WCSCPY
+#define STRNCPY	WCSNCPY
+#include "strncpy-evex.S"
diff --git a/sysdeps/x86_64/multiarch/wcsncpy-generic.c b/sysdeps/x86_64/multiarch/wcsncpy-generic.c
new file mode 100644
index 0000000000..693521713b
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcsncpy-generic.c
@@ -0,0 +1,27 @@
+/* wcsncpy.
+   Copyright (C) 2022 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/>.  */
+
+/* We always need to build this implementation as strspn-sse4 needs to
+   be able to fallback to it.  */
+#include <isa-level.h>
+#if ISA_SHOULD_BUILD (2)
+
+# define WCSNCPY __wcsncpy_generic
+# include <wcsmbs/wcsncpy.c>
+
+#endif
diff --git a/sysdeps/x86_64/multiarch/wcsncpy.c b/sysdeps/x86_64/multiarch/wcsncpy.c
new file mode 100644
index 0000000000..5b89dd4d27
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/wcsncpy.c
@@ -0,0 +1,37 @@
+/* Multiple versions of wcsncpy.
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2022 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/>.  */
+
+/* Define multiple versions only for the definition in libc.  */
+#if IS_IN (libc)
+# define __wcsncpy __redirect_wcsncpy
+# include <wchar.h>
+# undef __wcsncpy
+
+# define SYMBOL_NAME wcsncpy
+# include <init-arch.h>
+
+# include "ifunc-wcs.h"
+
+libc_ifunc_redirected (__redirect_wcsncpy, __wcsncpy, IFUNC_SELECTOR ());
+weak_alias (__wcsncpy, wcsncpy)
+# ifdef SHARED
+__hidden_ver1 (__wcsncpy, __GI___wcsncpy, __redirect_wcsncpy)
+  __attribute__((visibility ("hidden"))) __attribute_copy__ (wcsncpy);
+# endif
+#endif
diff --git a/sysdeps/x86_64/wcpcpy-generic.c b/sysdeps/x86_64/wcpcpy-generic.c
new file mode 100644
index 0000000000..d52525f288
--- /dev/null
+++ b/sysdeps/x86_64/wcpcpy-generic.c
@@ -0,0 +1,31 @@
+/* wcpcpy dispatch for RTLD and non-multiarch .c ISA level 1 build.
+   Copyright (C) 2022 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/>.  */
+
+/* wcpcpy non-multiarch build is split into two files,
+   wcpcpy-generic.c and wcpcpy.S. The wcpcpy-generic.c build is
+   for ISA level <= 1 and just uses multiarch/wcpcpy-generic.c.
+   This must be split into two files because we cannot include C
+   code from assembly or vice versa.  */
+
+#include <isa-level.h>
+
+#if MINIMUM_X86_ISA_LEVEL <= 3
+
+# include <wcsmbs/wcpcpy.c>
+
+#endif
diff --git a/sysdeps/x86_64/wcpcpy.S b/sysdeps/x86_64/wcpcpy.S
new file mode 100644
index 0000000000..ec32dc070a
--- /dev/null
+++ b/sysdeps/x86_64/wcpcpy.S
@@ -0,0 +1,41 @@
+/* wcpcpy dispatch for RTLD and non-multiarch .c ISA level 1 build.
+   Copyright (C) 2022 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/>.  */
+
+/* wcpcpy non-multiarch build is split into two files,
+   wcpcpy-generic.c and wcpcpy.S. The wcpcpy-generic.c build is
+   for ISA level <= 1 and just uses multiarch/wcpcpy-generic.c.
+   This must be split into two files because we cannot include C
+   code from assembly or vice versa.  */
+
+#include <isa-level.h>
+
+#if MINIMUM_X86_ISA_LEVEL >= 4
+
+# define WCPCPY	__wcpcpy
+
+# define DEFAULT_IMPL_V4	"multiarch/wcpcpy-evex.S"
+# define DEFAULT_IMPL_V3	"multiarch/wcpcpy-avx2.S"
+/* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it
+   should never be used from here.  */
+# define DEFAULT_IMPL_V1	"ERROR -- Invalid ISA IMPL"
+
+# include "isa-default-impl.h"
+
+weak_alias (__wcpcpy, wcpcpy)
+libc_hidden_def (__wcpcpy)
+#endif
diff --git a/sysdeps/x86_64/wcpncpy-generic.c b/sysdeps/x86_64/wcpncpy-generic.c
new file mode 100644
index 0000000000..871219a445
--- /dev/null
+++ b/sysdeps/x86_64/wcpncpy-generic.c
@@ -0,0 +1,31 @@
+/* wcpncpy dispatch for RTLD and non-multiarch .c ISA level 1 build.
+   Copyright (C) 2022 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/>.  */
+
+/* wcpncpy non-multiarch build is split into two files,
+   wcpncpy-generic.c and wcpncpy.S. The wcpncpy-generic.c build is
+   for ISA level <= 1 and just uses multiarch/wcpncpy-generic.c.
+   This must be split into two files because we cannot include C
+   code from assembly or vice versa.  */
+
+#include <isa-level.h>
+
+#if MINIMUM_X86_ISA_LEVEL <= 3
+
+# include <wcsmbs/wcpncpy.c>
+
+#endif
diff --git a/sysdeps/x86_64/wcpncpy.S b/sysdeps/x86_64/wcpncpy.S
new file mode 100644
index 0000000000..68e6ff1836
--- /dev/null
+++ b/sysdeps/x86_64/wcpncpy.S
@@ -0,0 +1,41 @@
+/* wcpncpy dispatch for RTLD and non-multiarch .c ISA level 1 build.
+   Copyright (C) 2022 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/>.  */
+
+/* wcpncpy non-multiarch build is split into two files,
+   wcpncpy-generic.c and wcpncpy.S. The wcpncpy-generic.c build is
+   for ISA level <= 1 and just uses multiarch/wcpncpy-generic.c.
+   This must be split into two files because we cannot include C
+   code from assembly or vice versa.  */
+
+#include <isa-level.h>
+
+#if MINIMUM_X86_ISA_LEVEL >= 4
+
+# define WCPNCPY	__wcpncpy
+
+# define DEFAULT_IMPL_V4	"multiarch/wcpncpy-evex.S"
+# define DEFAULT_IMPL_V3	"multiarch/wcpncpy-avx2.S"
+/* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it
+   should never be used from here.  */
+# define DEFAULT_IMPL_V1	"ERROR -- Invalid ISA IMPL"
+
+# include "isa-default-impl.h"
+
+weak_alias (__wcpncpy, wcpncpy)
+libc_hidden_def (__wcpncpy)
+#endif
diff --git a/sysdeps/x86_64/wcscat-generic.c b/sysdeps/x86_64/wcscat-generic.c
new file mode 100644
index 0000000000..85f981a81f
--- /dev/null
+++ b/sysdeps/x86_64/wcscat-generic.c
@@ -0,0 +1,31 @@
+/* wcscat dispatch for RTLD and non-multiarch .c ISA level 1 build.
+   Copyright (C) 2022 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/>.  */
+
+/* wcscat non-multiarch build is split into two files,
+   wcscat-generic.c and wcscat.S. The wcscat-generic.c build is
+   for ISA level <= 1 and just uses multiarch/wcscat-generic.c.
+   This must be split into two files because we cannot include C
+   code from assembly or vice versa.  */
+
+#include <isa-level.h>
+
+#if MINIMUM_X86_ISA_LEVEL <= 3
+
+# include <wcsmbs/wcscat.c>
+
+#endif
diff --git a/sysdeps/x86_64/wcscat.S b/sysdeps/x86_64/wcscat.S
new file mode 100644
index 0000000000..007de3c40c
--- /dev/null
+++ b/sysdeps/x86_64/wcscat.S
@@ -0,0 +1,41 @@
+/* wcscat dispatch for RTLD and non-multiarch .c ISA level 1 build.
+   Copyright (C) 2022 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/>.  */
+
+/* wcscat non-multiarch build is split into two files,
+   wcscat-generic.c and wcscat.S. The wcscat-generic.c build is
+   for ISA level <= 1 and just uses multiarch/wcscat-generic.c.
+   This must be split into two files because we cannot include C
+   code from assembly or vice versa.  */
+
+#include <isa-level.h>
+
+#if MINIMUM_X86_ISA_LEVEL >= 4
+
+# define WCSCAT	__wcscat
+
+# define DEFAULT_IMPL_V4	"multiarch/wcscat-evex.S"
+# define DEFAULT_IMPL_V3	"multiarch/wcscat-avx2.S"
+/* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it
+   should never be used from here.  */
+# define DEFAULT_IMPL_V1	"ERROR -- Invalid ISA IMPL"
+
+# include "isa-default-impl.h"
+
+weak_alias (__wcscat, wcscat)
+libc_hidden_def (__wcscat)
+#endif
diff --git a/sysdeps/x86_64/wcscpy.S b/sysdeps/x86_64/wcscpy.S
index 11d0bb4bab..ab9288ed74 100644
--- a/sysdeps/x86_64/wcscpy.S
+++ b/sysdeps/x86_64/wcscpy.S
@@ -28,6 +28,8 @@
 
 # define WCSCPY	__wcscpy
 
+# define DEFAULT_IMPL_V4	"multiarch/wcscpy-evex.S"
+# define DEFAULT_IMPL_V3	"multiarch/wcscpy-avx2.S"
 # define DEFAULT_IMPL_V2	"multiarch/wcscpy-ssse3.S"
 /* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it
    should never be used from here.  */
diff --git a/sysdeps/x86_64/wcsncat-generic.c b/sysdeps/x86_64/wcsncat-generic.c
new file mode 100644
index 0000000000..2cc0f7b11a
--- /dev/null
+++ b/sysdeps/x86_64/wcsncat-generic.c
@@ -0,0 +1,31 @@
+/* wcsncat dispatch for RTLD and non-multiarch .c ISA level 1 build.
+   Copyright (C) 2022 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/>.  */
+
+/* wcsncat non-multiarch build is split into two files,
+   wcsncat-generic.c and wcsncat.S. The wcsncat-generic.c build is
+   for ISA level <= 1 and just uses multiarch/wcsncat-generic.c.
+   This must be split into two files because we cannot include C
+   code from assembly or vice versa.  */
+
+#include <isa-level.h>
+
+#if MINIMUM_X86_ISA_LEVEL <= 3
+
+# include <wcsmbs/wcsncat.c>
+
+#endif
diff --git a/sysdeps/x86_64/wcsncat.S b/sysdeps/x86_64/wcsncat.S
new file mode 100644
index 0000000000..3f4c7948db
--- /dev/null
+++ b/sysdeps/x86_64/wcsncat.S
@@ -0,0 +1,39 @@
+/* wcsncat dispatch for RTLD and non-multiarch .c ISA level 1 build.
+   Copyright (C) 2022 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/>.  */
+
+/* wcsncat non-multiarch build is split into two files,
+   wcsncat-generic.c and wcsncat.S. The wcsncat-generic.c build is
+   for ISA level <= 1 and just uses multiarch/wcsncat-generic.c.
+   This must be split into two files because we cannot include C
+   code from assembly or vice versa.  */
+
+#include <isa-level.h>
+
+#if MINIMUM_X86_ISA_LEVEL >= 4
+
+# define WCSNCAT	wcsncat
+
+# define DEFAULT_IMPL_V4	"multiarch/wcsncat-evex.S"
+# define DEFAULT_IMPL_V3	"multiarch/wcsncat-avx2.S"
+/* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it
+   should never be used from here.  */
+# define DEFAULT_IMPL_V1	"ERROR -- Invalid ISA IMPL"
+
+# include "isa-default-impl.h"
+
+#endif
diff --git a/sysdeps/x86_64/wcsncpy-generic.c b/sysdeps/x86_64/wcsncpy-generic.c
new file mode 100644
index 0000000000..49d06b8ae8
--- /dev/null
+++ b/sysdeps/x86_64/wcsncpy-generic.c
@@ -0,0 +1,31 @@
+/* wcsncpy dispatch for RTLD and non-multiarch .c ISA level 1 build.
+   Copyright (C) 2022 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/>.  */
+
+/* wcsncpy non-multiarch build is split into two files,
+   wcsncpy-generic.c and wcsncpy.S. The wcsncpy-generic.c build is
+   for ISA level <= 1 and just uses multiarch/wcsncpy-generic.c.
+   This must be split into two files because we cannot include C
+   code from assembly or vice versa.  */
+
+#include <isa-level.h>
+
+#if MINIMUM_X86_ISA_LEVEL <= 3
+
+# include <wcsmbs/wcsncpy.c>
+
+#endif
diff --git a/sysdeps/x86_64/wcsncpy.S b/sysdeps/x86_64/wcsncpy.S
new file mode 100644
index 0000000000..e1428fd4c1
--- /dev/null
+++ b/sysdeps/x86_64/wcsncpy.S
@@ -0,0 +1,41 @@
+/* wcsncpy dispatch for RTLD and non-multiarch .c ISA level 1 build.
+   Copyright (C) 2022 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/>.  */
+
+/* wcsncpy non-multiarch build is split into two files,
+   wcsncpy-generic.c and wcsncpy.S. The wcsncpy-generic.c build is
+   for ISA level <= 1 and just uses multiarch/wcsncpy-generic.c.
+   This must be split into two files because we cannot include C
+   code from assembly or vice versa.  */
+
+#include <isa-level.h>
+
+#if MINIMUM_X86_ISA_LEVEL >= 4
+
+# define WCSNCPY	__wcsncpy
+
+# define DEFAULT_IMPL_V4	"multiarch/wcsncpy-evex.S"
+# define DEFAULT_IMPL_V3	"multiarch/wcsncpy-avx2.S"
+/* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it
+   should never be used from here.  */
+# define DEFAULT_IMPL_V1	"ERROR -- Invalid ISA IMPL"
+
+# include "isa-default-impl.h"
+
+weak_alias (__wcsncpy, wcsncpy)
+libc_hidden_def (__wcsncpy)
+#endif
