root/tools/perf/bench/mem-memset-x86-64-asm-def.h 
/* SPDX-License-Identifier: GPL-2.0 */

MEMSET_FN(memset_orig,
        mem_alloc,
        mem_free,
        "x86-64-unrolled",
        "unrolled memset() in arch/x86/lib/memset_64.S")

MEMSET_FN(__memset,
        mem_alloc,
        mem_free,
        "x86-64-stosq",
        "movsq-based memset() in arch/x86/lib/memset_64.S")