=> 0x7fbfa97ea445 : cmp $0xfffffffffffff000,%rax 0x7fbfa97ea44b : ja 0x7fbfa97ea45f 0x7fbfa97ea44d : repz retq 0x7fbfa97ea44f : nop 0x7fbfa97ea450 : test %eax,%eax 0x7fbfa97ea452 : jg 0x7fbfa97ea435 0x7fbfa97ea454 : test $0x7fffffff,%eax 0x7fbfa97ea459 : je 0x7fbfa97ea470 0x7fbfa97ea45b : neg %eax 0x7fbfa97ea45d : jmp 0x7fbfa97ea435 0x7fbfa97ea45f : mov 0x37d9ba(%rip),%rdx # 0x7fbfa9b67e20 0x7fbfa97ea466 : neg %eax 0x7fbfa97ea468 : mov %eax,%fs:(%rdx) 0x7fbfa97ea46b : or $0xffffffffffffffff,%rax 0x7fbfa97ea46f : retq 0x7fbfa97ea470 : mov %esi,%eax