Improve 64bit memcpy performance for Haswell CPU with AVX instruction

[thirdparty/glibc.git] / sysdeps / x86_64 / multiarch / memmove_chk.c

diff --git a/sysdeps/x86_64/multiarch/memmove_chk.c b/sysdeps/x86_64/multiarch/memmove_chk.c
index cb1acb65982399cd046a6dfefcf471844ec298f9..44344f2820c52c234672975326c3e659e719ec62 100644 (file)
--- a/sysdeps/x86_64/multiarch/memmove_chk.c
+++ b/sysdeps/x86_64/multiarch/memmove_chk.c
@@ -25,11 +25,13 @@
 extern __typeof (__memmove_chk) __memmove_chk_sse2 attribute_hidden;
 extern __typeof (__memmove_chk) __memmove_chk_ssse3 attribute_hidden;
 extern __typeof (__memmove_chk) __memmove_chk_ssse3_back attribute_hidden;
+extern __typeof (__memmove_chk) __memmove_chk_avx_unaligned attribute_hidden;
 
 #include "debug/memmove_chk.c"
 
 libc_ifunc (__memmove_chk,
-           HAS_SSSE3
+           HAS_AVX ? __memmove_chk_avx_unaligned :
+           (HAS_SSSE3
            ? (HAS_FAST_COPY_BACKWARD
               ? __memmove_chk_ssse3_back : __memmove_chk_ssse3)
-           : __memmove_chk_sse2);
+           : __memmove_chk_sse2));