(gdb) disass $pc-32,$pc+32
Dump of assembler code for function memmove$VARIANT$sse42:
0x00007fff94b13cbd <memmove$VARIANT$sse42+0>:	push   %rbp
0x00007fff94b13cbe <memmove$VARIANT$sse42+1>:	mov    %rsp,%rbp
0x00007fff94b13cc1 <memmove$VARIANT$sse42+4>:	mov    %rdi,%r11
0x00007fff94b13cc4 <memmove$VARIANT$sse42+7>:	mov    %rdi,%rax
0x00007fff94b13cc7 <memmove$VARIANT$sse42+10>:	sub    %rsi,%rax
0x00007fff94b13cca <memmove$VARIANT$sse42+13>:	cmp    %rdx,%rax
0x00007fff94b13ccd <memmove$VARIANT$sse42+16>:	jb     0x7fff94b13d04 <memmove$VARIANT$sse42+71>
0x00007fff94b13ccf <memmove$VARIANT$sse42+18>:	cmp    $0x50,%rdx
0x00007fff94b13cd3 <memmove$VARIANT$sse42+22>:	ja     0x7fff94b13d09 <memmove$VARIANT$sse42+76>
0x00007fff94b13cd5 <memmove$VARIANT$sse42+24>:	mov    %edx,%ecx
0x00007fff94b13cd7 <memmove$VARIANT$sse42+26>:	shr    $0x2,%ecx
0x00007fff94b13cda <memmove$VARIANT$sse42+29>:	je     0x7fff94b13cec <memmove$VARIANT$sse42+47>
0x00007fff94b13cdc <memmove$VARIANT$sse42+31>:	mov    (%rsi),%eax
0x00007fff94b13cde <memmove$VARIANT$sse42+33>:	add    $0x4,%rsi
0x00007fff94b13ce2 <memmove$VARIANT$sse42+37>:	mov    %eax,(%rdi)
0x00007fff94b13ce4 <memmove$VARIANT$sse42+39>:	add    $0x4,%rdi
0x00007fff94b13ce8 <memmove$VARIANT$sse42+43>:	dec    %ecx
0x00007fff94b13cea <memmove$VARIANT$sse42+45>:	jne    0x7fff94b13cdc <memmove$VARIANT$sse42+31>
0x00007fff94b13cec <memmove$VARIANT$sse42+47>:	and    $0x3,%edx
0x00007fff94b13cef <memmove$VARIANT$sse42+50>:	je     0x7fff94b13cff <memmove$VARIANT$sse42+66>
0x00007fff94b13cf1 <memmove$VARIANT$sse42+52>:	mov    (%rsi),%al
0x00007fff94b13cf3 <memmove$VARIANT$sse42+54>:	inc    %rsi
0x00007fff94b13cf6 <memmove$VARIANT$sse42+57>:	mov    %al,(%rdi)
0x00007fff94b13cf8 <memmove$VARIANT$sse42+59>:	inc    %rdi
0x00007fff94b13cfb <memmove$VARIANT$sse42+62>:	dec    %edx
0x00007fff94b13cfd <memmove$VARIANT$sse42+64>:	jne    0x7fff94b13cf1 <memmove$VARIANT$sse42+52>
0x00007fff94b13cff <memmove$VARIANT$sse42+66>:	mov    %r11,%rax
0x00007fff94b13d02 <memmove$VARIANT$sse42+69>:	pop    %rbp
0x00007fff94b13d03 <memmove$VARIANT$sse42+70>:	retq   
0x00007fff94b13d04 <memmove$VARIANT$sse42+71>:	jmpq   0x7fff94b13db9 <memmove$VARIANT$sse42+252>
0x00007fff94b13d09 <memmove$VARIANT$sse42+76>:	mov    %edi,%ecx
0x00007fff94b13d0b <memmove$VARIANT$sse42+78>:	neg    %ecx
0x00007fff94b13d0d <memmove$VARIANT$sse42+80>:	and    $0xf,%ecx
0x00007fff94b13d10 <memmove$VARIANT$sse42+83>:	je     0x7fff94b13d22 <memmove$VARIANT$sse42+101>
0x00007fff94b13d12 <memmove$VARIANT$sse42+85>:	sub    %ecx,%edx
0x00007fff94b13d14 <memmove$VARIANT$sse42+87>:	mov    (%rsi),%al
0x00007fff94b13d16 <memmove$VARIANT$sse42+89>:	inc    %rsi
0x00007fff94b13d19 <memmove$VARIANT$sse42+92>:	mov    %al,(%rdi)
0x00007fff94b13d1b <memmove$VARIANT$sse42+94>:	inc    %rdi
0x00007fff94b13d1e <memmove$VARIANT$sse42+97>:	dec    %ecx
0x00007fff94b13d20 <memmove$VARIANT$sse42+99>:	jne    0x7fff94b13d14 <memmove$VARIANT$sse42+87>
0x00007fff94b13d22 <memmove$VARIANT$sse42+101>:	mov    %rdx,%rcx
---Type <return> to continue, or q <return> to quit---
0x00007fff94b13d25 <memmove$VARIANT$sse42+104>:	and    $0x3f,%edx
0x00007fff94b13d28 <memmove$VARIANT$sse42+107>:	and    $0xffffffffffffffc0,%rcx
0x00007fff94b13d2c <memmove$VARIANT$sse42+111>:	add    %rcx,%rsi
0x00007fff94b13d2f <memmove$VARIANT$sse42+114>:	add    %rcx,%rdi
0x00007fff94b13d32 <memmove$VARIANT$sse42+117>:	neg    %rcx
0x00007fff94b13d35 <memmove$VARIANT$sse42+120>:	test   $0xf,%esi
0x00007fff94b13d3b <memmove$VARIANT$sse42+126>:	jne    0x7fff94b13d80 <memmove$VARIANT$sse42+195>
0x00007fff94b13d3d <memmove$VARIANT$sse42+128>:	jmp    0x7fff94b13d40 <memmove$VARIANT$sse42+131>
0x00007fff94b13d3f <memmove$VARIANT$sse42+130>:	nop    
0x00007fff94b13d40 <memmove$VARIANT$sse42+131>:	movdqa (%rsi,%rcx,1),%xmm0
0x00007fff94b13d45 <memmove$VARIANT$sse42+136>:	movdqa 0x10(%rsi,%rcx,1),%xmm1
0x00007fff94b13d4b <memmove$VARIANT$sse42+142>:	movdqa 0x20(%rsi,%rcx,1),%xmm2
0x00007fff94b13d51 <memmove$VARIANT$sse42+148>:	movdqa 0x30(%rsi,%rcx,1),%xmm3
0x00007fff94b13d57 <memmove$VARIANT$sse42+154>:	movdqa %xmm0,(%rdi,%rcx,1)
0x00007fff94b13d5c <memmove$VARIANT$sse42+159>:	movdqa %xmm1,0x10(%rdi,%rcx,1)
0x00007fff94b13d62 <memmove$VARIANT$sse42+165>:	movdqa %xmm2,0x20(%rdi,%rcx,1)
0x00007fff94b13d68 <memmove$VARIANT$sse42+171>:	movdqa %xmm3,0x30(%rdi,%rcx,1)
0x00007fff94b13d6e <memmove$VARIANT$sse42+177>:	add    $0x40,%rcx
0x00007fff94b13d72 <memmove$VARIANT$sse42+181>:	jne    0x7fff94b13d40 <memmove$VARIANT$sse42+131>
0x00007fff94b13d74 <memmove$VARIANT$sse42+183>:	jmpq   0x7fff94b13cd5 <memmove$VARIANT$sse42+24>
0x00007fff94b13d79 <memmove$VARIANT$sse42+188>:	nopl   0x0(%rax)
0x00007fff94b13d80 <memmove$VARIANT$sse42+195>:	movdqu (%rsi,%rcx,1),%xmm0
0x00007fff94b13d85 <memmove$VARIANT$sse42+200>:	movdqu 0x10(%rsi,%rcx,1),%xmm1
0x00007fff94b13d8b <memmove$VARIANT$sse42+206>:	movdqu 0x20(%rsi,%rcx,1),%xmm2
0x00007fff94b13d91 <memmove$VARIANT$sse42+212>:	movdqu 0x30(%rsi,%rcx,1),%xmm3
0x00007fff94b13d97 <memmove$VARIANT$sse42+218>:	movdqa %xmm0,(%rdi,%rcx,1)
0x00007fff94b13d9c <memmove$VARIANT$sse42+223>:	movdqa %xmm1,0x10(%rdi,%rcx,1)
0x00007fff94b13da2 <memmove$VARIANT$sse42+229>:	movdqa %xmm2,0x20(%rdi,%rcx,1)
0x00007fff94b13da8 <memmove$VARIANT$sse42+235>:	movdqa %xmm3,0x30(%rdi,%rcx,1)
0x00007fff94b13dae <memmove$VARIANT$sse42+241>:	add    $0x40,%rcx
0x00007fff94b13db2 <memmove$VARIANT$sse42+245>:	jne    0x7fff94b13d80 <memmove$VARIANT$sse42+195>
0x00007fff94b13db4 <memmove$VARIANT$sse42+247>:	jmpq   0x7fff94b13cd5 <memmove$VARIANT$sse42+24>
0x00007fff94b13db9 <memmove$VARIANT$sse42+252>:	add    %rdx,%rsi
0x00007fff94b13dbc <memmove$VARIANT$sse42+255>:	add    %rdx,%rdi
0x00007fff94b13dbf <memmove$VARIANT$sse42+258>:	cmp    $0x50,%rdx
0x00007fff94b13dc3 <memmove$VARIANT$sse42+262>:	ja     0x7fff94b13df6 <memmove$VARIANT$sse42+313>
0x00007fff94b13dc5 <memmove$VARIANT$sse42+264>:	mov    %edx,%ecx
0x00007fff94b13dc7 <memmove$VARIANT$sse42+266>:	shr    $0x3,%ecx
0x00007fff94b13dca <memmove$VARIANT$sse42+269>:	je     0x7fff94b13dde <memmove$VARIANT$sse42+289>
0x00007fff94b13dcc <memmove$VARIANT$sse42+271>:	sub    $0x8,%rsi
0x00007fff94b13dd0 <memmove$VARIANT$sse42+275>:	mov    (%rsi),%rax
0x00007fff94b13dd3 <memmove$VARIANT$sse42+278>:	sub    $0x8,%rdi
0x00007fff94b13dd7 <memmove$VARIANT$sse42+282>:	mov    %rax,(%rdi)
---Type <return> to continue, or q <return> to quit---
0x00007fff94b13dda <memmove$VARIANT$sse42+285>:	dec    %ecx
0x00007fff94b13ddc <memmove$VARIANT$sse42+287>:	jne    0x7fff94b13dcc <memmove$VARIANT$sse42+271>
0x00007fff94b13dde <memmove$VARIANT$sse42+289>:	and    $0x7,%edx
0x00007fff94b13de1 <memmove$VARIANT$sse42+292>:	je     0x7fff94b13df1 <memmove$VARIANT$sse42+308>
0x00007fff94b13de3 <memmove$VARIANT$sse42+294>:	dec    %rsi
0x00007fff94b13de6 <memmove$VARIANT$sse42+297>:	mov    (%rsi),%al
0x00007fff94b13de8 <memmove$VARIANT$sse42+299>:	dec    %rdi
0x00007fff94b13deb <memmove$VARIANT$sse42+302>:	mov    %al,(%rdi)
0x00007fff94b13ded <memmove$VARIANT$sse42+304>:	dec    %edx
0x00007fff94b13def <memmove$VARIANT$sse42+306>:	jne    0x7fff94b13de3 <memmove$VARIANT$sse42+294>
0x00007fff94b13df1 <memmove$VARIANT$sse42+308>:	mov    %r11,%rax
0x00007fff94b13df4 <memmove$VARIANT$sse42+311>:	pop    %rbp
0x00007fff94b13df5 <memmove$VARIANT$sse42+312>:	retq   
0x00007fff94b13df6 <memmove$VARIANT$sse42+313>:	mov    %edi,%ecx
0x00007fff94b13df8 <memmove$VARIANT$sse42+315>:	and    $0xf,%ecx
0x00007fff94b13dfb <memmove$VARIANT$sse42+318>:	je     0x7fff94b13e0e <memmove$VARIANT$sse42+337>
0x00007fff94b13dfd <memmove$VARIANT$sse42+320>:	sub    %rcx,%rdx
0x00007fff94b13e00 <memmove$VARIANT$sse42+323>:	dec    %rsi
0x00007fff94b13e03 <memmove$VARIANT$sse42+326>:	mov    (%rsi),%al
0x00007fff94b13e05 <memmove$VARIANT$sse42+328>:	dec    %rdi
0x00007fff94b13e08 <memmove$VARIANT$sse42+331>:	mov    %al,(%rdi)
0x00007fff94b13e0a <memmove$VARIANT$sse42+333>:	dec    %ecx
0x00007fff94b13e0c <memmove$VARIANT$sse42+335>:	jne    0x7fff94b13e00 <memmove$VARIANT$sse42+323>
0x00007fff94b13e0e <memmove$VARIANT$sse42+337>:	mov    %rdx,%rcx
0x00007fff94b13e11 <memmove$VARIANT$sse42+340>:	and    $0x3f,%edx
0x00007fff94b13e14 <memmove$VARIANT$sse42+343>:	and    $0xffffffffffffffc0,%rcx
0x00007fff94b13e18 <memmove$VARIANT$sse42+347>:	sub    %rcx,%rsi
0x00007fff94b13e1b <memmove$VARIANT$sse42+350>:	sub    %rcx,%rdi
0x00007fff94b13e1e <memmove$VARIANT$sse42+353>:	test   $0xf,%esi
0x00007fff94b13e24 <memmove$VARIANT$sse42+359>:	jne    0x7fff94b13e61 <memmove$VARIANT$sse42+420>
0x00007fff94b13e26 <memmove$VARIANT$sse42+361>:	movdqa -0x10(%rsi,%rcx,1),%xmm0
0x00007fff94b13e2c <memmove$VARIANT$sse42+367>:	movdqa -0x20(%rsi,%rcx,1),%xmm1
0x00007fff94b13e32 <memmove$VARIANT$sse42+373>:	movdqa -0x30(%rsi,%rcx,1),%xmm2
0x00007fff94b13e38 <memmove$VARIANT$sse42+379>:	movdqa -0x40(%rsi,%rcx,1),%xmm3
0x00007fff94b13e3e <memmove$VARIANT$sse42+385>:	movdqa %xmm0,-0x10(%rdi,%rcx,1)
0x00007fff94b13e44 <memmove$VARIANT$sse42+391>:	movdqa %xmm1,-0x20(%rdi,%rcx,1)
0x00007fff94b13e4a <memmove$VARIANT$sse42+397>:	movdqa %xmm2,-0x30(%rdi,%rcx,1)
0x00007fff94b13e50 <memmove$VARIANT$sse42+403>:	movdqa %xmm3,-0x40(%rdi,%rcx,1)
0x00007fff94b13e56 <memmove$VARIANT$sse42+409>:	sub    $0x40,%rcx
0x00007fff94b13e5a <memmove$VARIANT$sse42+413>:	jne    0x7fff94b13e26 <memmove$VARIANT$sse42+361>
0x00007fff94b13e5c <memmove$VARIANT$sse42+415>:	jmpq   0x7fff94b13dc5 <memmove$VARIANT$sse42+264>
0x00007fff94b13e61 <memmove$VARIANT$sse42+420>:	movdqu -0x10(%rsi,%rcx,1),%xmm0
0x00007fff94b13e67 <memmove$VARIANT$sse42+426>:	movdqu -0x20(%rsi,%rcx,1),%xmm1
---Type <return> to continue, or q <return> to quit---
0x00007fff94b13e6d <memmove$VARIANT$sse42+432>:	movdqu -0x30(%rsi,%rcx,1),%xmm2
0x00007fff94b13e73 <memmove$VARIANT$sse42+438>:	movdqu -0x40(%rsi,%rcx,1),%xmm3
0x00007fff94b13e79 <memmove$VARIANT$sse42+444>:	movdqa %xmm0,-0x10(%rdi,%rcx,1)
0x00007fff94b13e7f <memmove$VARIANT$sse42+450>:	movdqa %xmm1,-0x20(%rdi,%rcx,1)
0x00007fff94b13e85 <memmove$VARIANT$sse42+456>:	movdqa %xmm2,-0x30(%rdi,%rcx,1)
0x00007fff94b13e8b <memmove$VARIANT$sse42+462>:	movdqa %xmm3,-0x40(%rdi,%rcx,1)
0x00007fff94b13e91 <memmove$VARIANT$sse42+468>:	sub    $0x40,%rcx
0x00007fff94b13e95 <memmove$VARIANT$sse42+472>:	jne    0x7fff94b13e61 <memmove$VARIANT$sse42+420>
0x00007fff94b13e97 <memmove$VARIANT$sse42+474>:	jmpq   0x7fff94b13dc5 <memmove$VARIANT$sse42+264>
0x00007fff94b13e9c <memmove$VARIANT$sse42+479>:	nop    
0x00007fff94b13e9d <memmove$VARIANT$sse42+480>:	nop    
0x00007fff94b13e9e <memmove$VARIANT$sse42+481>:	nop    
0x00007fff94b13e9f <memmove$VARIANT$sse42+482>:	nop    
End of assembler dump.