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Diffstat (limited to 'sysdeps/x86_64/multiarch/memmove.c')
-rw-r--r--sysdeps/x86_64/multiarch/memmove.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/sysdeps/x86_64/multiarch/memmove.c b/sysdeps/x86_64/multiarch/memmove.c
index e8445317a2..8da5640bb0 100644
--- a/sysdeps/x86_64/multiarch/memmove.c
+++ b/sysdeps/x86_64/multiarch/memmove.c
@@ -36,6 +36,9 @@ extern __typeof (__redirect_memmove) __memmove_sse2 attribute_hidden;
 extern __typeof (__redirect_memmove) __memmove_ssse3 attribute_hidden;
 extern __typeof (__redirect_memmove) __memmove_ssse3_back attribute_hidden;
 extern __typeof (__redirect_memmove) __memmove_avx_unaligned attribute_hidden;
+# ifdef HAVE_AVX512_ASM_SUPPORT
+  extern __typeof (__redirect_memmove) __memmove_avx512_no_vzeroupper attribute_hidden;
+# endif
 
 #endif
 
@@ -49,12 +52,18 @@ extern __typeof (__redirect_memmove) __memmove_avx_unaligned attribute_hidden;
    ifunc symbol properly.  */
 extern __typeof (__redirect_memmove) __libc_memmove;
 libc_ifunc (__libc_memmove,
-	    HAS_ARCH_FEATURE (AVX_Fast_Unaligned_Load)
+#ifdef HAVE_AVX512_ASM_SUPPORT
+	    HAS_ARCH_FEATURE (AVX512F_Usable)
+	      && HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER)
+	    ? __memmove_avx512_no_vzeroupper
+	    :
+#endif
+	    (HAS_ARCH_FEATURE (AVX_Fast_Unaligned_Load)
 	    ? __memmove_avx_unaligned
 	    : (HAS_CPU_FEATURE (SSSE3)
 	       ? (HAS_ARCH_FEATURE (Fast_Copy_Backward)
 	          ? __memmove_ssse3_back : __memmove_ssse3)
-	       : __memmove_sse2));
+	       : __memmove_sse2)));
 
 strong_alias (__libc_memmove, memmove)