=> 0x7fa5031c1d20 <vfprintf+6992>:	repnz scas %es:(%rdi),%al
   0x7fa5031c1d22 <vfprintf+6994>:	movl   $0x0,-0x4d8(%rbp)
   0x7fa5031c1d2c <vfprintf+7004>:	mov    %rcx,%rax
   0x7fa5031c1d2f <vfprintf+7007>:	not    %rax
   0x7fa5031c1d32 <vfprintf+7010>:	lea    -0x1(%rax),%r10
   0x7fa5031c1d36 <vfprintf+7014>:	jmpq   0x7fa5031c1b03 <vfprintf+6451>
   0x7fa5031c1d3b <vfprintf+7019>:	mov    -0x538(%rbp),%rax
   0x7fa5031c1d42 <vfprintf+7026>:	mov    %r11,-0x470(%rbp)
   0x7fa5031c1d49 <vfprintf+7033>:	movq   $0x0,(%rax)
   0x7fa5031c1d50 <vfprintf+7040>:	mov    -0x4d8(%rbp),%eax
   0x7fa5031c1d56 <vfprintf+7046>:	test   %eax,%eax
   0x7fa5031c1d58 <vfprintf+7048>:	js     0x7fa5031c1e15 <vfprintf+7237>
   0x7fa5031c1d5e <vfprintf+7054>:	cmp    $0x1000,%eax
   0x7fa5031c1d63 <vfprintf+7059>:	movslq %eax,%rdx
   0x7fa5031c1d66 <vfprintf+7062>:	jle    0x7fa5031c1da2 <vfprintf+7122>
   0x7fa5031c1d68 <vfprintf+7064>:	mov    %rdx,%rdi