=> 0x7f9f31a255d1:	movdqu (%rdi),%xmm1
   0x7f9f31a255d5:	pcmpeqb %xmm1,%xmm0
   0x7f9f31a255d9:	pmovmskb %xmm0,%edx
   0x7f9f31a255dd:	test   %edx,%edx
   0x7f9f31a255df:	jne    0x7f9f31a2565b
   0x7f9f31a255e1:	mov    %rdi,%rax
   0x7f9f31a255e4:	and    $0xfffffffffffffff0,%rax
   0x7f9f31a255e8:	jmp    0x7f9f31a25607
   0x7f9f31a255ea:	mov    %rdi,%rax
   0x7f9f31a255ed:	and    $0xfffffffffffffff0,%rax
   0x7f9f31a255f1:	pcmpeqb (%rax),%xmm0
   0x7f9f31a255f5:	mov    $0xffffffff,%esi
   0x7f9f31a255fa:	sub    %rax,%rcx
   0x7f9f31a255fd:	shl    %cl,%esi
   0x7f9f31a255ff:	pmovmskb %xmm0,%edx
   0x7f9f31a25603:	and    %esi,%edx