=> 0x7f644276fd05 : cmp $0xfffffffffffff000,%rax 0x7f644276fd0b : ja 0x7f644276fd1f 0x7f644276fd0d : repz retq 0x7f644276fd0f : nop 0x7f644276fd10 : test %eax,%eax 0x7f644276fd12 : jg 0x7f644276fcf5 0x7f644276fd14 : test $0x7fffffff,%eax 0x7f644276fd19 : je 0x7f644276fd30 0x7f644276fd1b : neg %eax 0x7f644276fd1d : jmp 0x7f644276fcf5 0x7f644276fd1f : mov 0x35927a(%rip),%rdx # 0x7f6442ac8fa0 0x7f644276fd26 : neg %eax 0x7f644276fd28 : mov %eax,%fs:(%rdx) 0x7f644276fd2b : or $0xffffffffffffffff,%rax 0x7f644276fd2f : retq 0x7f644276fd30 : mov %esi,%eax