=> 0x7f4b0911d846:	movlpd (%rdi),%xmm1
   0x7f4b0911d84a:	movlpd (%rsi),%xmm2
   0x7f4b0911d84e:	movhpd 0x8(%rdi),%xmm1
   0x7f4b0911d853:	movhpd 0x8(%rsi),%xmm2
   0x7f4b0911d858:	pxor   %xmm0,%xmm0
   0x7f4b0911d85c:	pcmpeqb %xmm1,%xmm0
   0x7f4b0911d860:	pcmpeqb %xmm2,%xmm1
   0x7f4b0911d864:	psubb  %xmm0,%xmm1
   0x7f4b0911d868:	pmovmskb %xmm1,%edx
   0x7f4b0911d86c:	sub    $0xffff,%edx
   0x7f4b0911d872:	jne    0x7f4b0911ec40
   0x7f4b0911d878:	add    $0x10,%rsi
   0x7f4b0911d87c:	add    $0x10,%rdi
   0x7f4b0911d880:	and    $0xfffffffffffffff0,%rsi
   0x7f4b0911d884:	and    $0xfffffffffffffff0,%rdi
   0x7f4b0911d888:	mov    $0xffff,%edx