| # RUN: llvm-mc --disassemble %s -triple=x86_64 | FileCheck %s | 
 |  | 
 | # CHECK: mulsd   %xmm7, %xmm7 | 
 | 0x66 0xF3 0xF2 0x0F 0x59 0xFF | 
 | # CHECK: mulss   %xmm7, %xmm7 | 
 | 0x66 0xF2 0xF3 0x0F 0x59 0xFF | 
 | # CHECK: mulpd   %xmm7, %xmm7 | 
 | 0x66 0x0F 0x59 0xFF | 
 | # CHECK: mulsd   %xmm7, %xmm7 | 
 | 0xf2 0x66 0x0f 0x59 0xff | 
 |  | 
 | # CHECK: repne scasw   %es:(%rdi), %ax | 
 | 0xf2 0x66 0xaf | 
 | # CHECK: repne scasw   %es:(%rdi), %ax | 
 | 0x66 0xf2 0xaf | 
 |  | 
 | # CHECK: rep scasw   %es:(%rdi), %ax | 
 | 0xf3 0x66 0xaf | 
 | # CHECK: rep scasw   %es:(%rdi), %ax | 
 | 0x66 0xf3 0xaf | 
 |  | 
 | # CHECK: repne insw    %dx, %es:(%rdi) | 
 | 0xf2 0x66 0x6d | 
 | # CHECK: repne insw    %dx, %es:(%rdi) | 
 | 0x66 0xf2 0x6d | 
 |  | 
 | # CHECK: rep insw    %dx, %es:(%rdi) | 
 | 0xf3 0x66 0x6d | 
 | # CHECK: rep insw    %dx, %es:(%rdi) | 
 | 0x66 0xf3 0x6d |