=> 0x7f199b8d3445 : cmp $0xfffffffffffff000,%rax 0x7f199b8d344b : ja 0x7f199b8d345f 0x7f199b8d344d : repz retq 0x7f199b8d344f : nop 0x7f199b8d3450 : test %eax,%eax 0x7f199b8d3452 : jg 0x7f199b8d3435 0x7f199b8d3454 : test $0x7fffffff,%eax 0x7f199b8d3459 : je 0x7f199b8d3470 0x7f199b8d345b : neg %eax 0x7f199b8d345d : jmp 0x7f199b8d3435 0x7f199b8d345f : mov 0x37d9ba(%rip),%rdx # 0x7f199bc50e20 0x7f199b8d3466 : neg %eax 0x7f199b8d3468 : mov %eax,%fs:(%rdx) 0x7f199b8d346b : or $0xffffffffffffffff,%rax 0x7f199b8d346f : retq 0x7f199b8d3470 : mov %esi,%eax