MEMCPY_FN(__memcpy, "x86-64-unrolled", "unrolled memcpy() in arch/x86/lib/memcpy_64.S") MEMCPY_FN(memcpy_c, "x86-64-movsq", "movsq-based memcpy() in arch/x86/lib/memcpy_64.S") MEMCPY_FN(memcpy_c_e, "x86-64-movsb", "movsb-based memcpy() in arch/x86/lib/memcpy_64.S")