glibc/sysdeps/x86_64/multiarch/memmove.c

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#ifndef NOT_IN_libc
#include "init-arch.h"
#define MEMMOVE __memmove_sse2
#ifdef SHARED
# undef libc_hidden_builtin_def
# define libc_hidden_builtin_def(name) \
__hidden_ver1 (__memmove_sse2, __GI_memmove, __memmove_sse2);
#endif
#endif
#include "string/memmove.c"
#ifndef NOT_IN_libc
extern __typeof (__memmove_sse2) __memmove_sse2 attribute_hidden;
extern __typeof (__memmove_sse2) __memmove_ssse3 attribute_hidden;
extern __typeof (__memmove_sse2) __memmove_ssse3_back attribute_hidden;
libc_ifunc (memmove,
HAS_SSSE3
? (HAS_FAST_COPY_BACKWARD
? __memmove_ssse3_back : __memmove_ssse3)
: __memmove_sse2);
#endif