|  | // RUN: llvm-mc -triple x86_64-unknown-unknown --show-encoding %s | FileCheck %s | 
|  |  | 
|  | // PR8283 | 
|  |  | 
|  | // CHECK: pavgusb %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0xbf] | 
|  | pavgusb	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pavgusb 9(%esi,%edx), %mm3 # encoding: [0x67,0x0f,0x0f,0x5c,0x16,0x09,0xbf] | 
|  | pavgusb	9(%esi,%edx), %mm3 | 
|  |  | 
|  |  | 
|  | // CHECK: pf2id %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0x1d] | 
|  | pf2id	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pf2id 9(%esi,%edx), %mm3 # encoding: [0x67,0x0f,0x0f,0x5c,0x16,0x09,0x1d] | 
|  | pf2id	9(%esi,%edx), %mm3 | 
|  |  | 
|  | // CHECK: pfacc %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0xae] | 
|  | pfacc	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfadd %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0x9e] | 
|  | pfadd	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfcmpeq %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0xb0] | 
|  | pfcmpeq	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfcmpge %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0x90] | 
|  | pfcmpge	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfcmpgt %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0xa0] | 
|  | pfcmpgt	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfmax %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0xa4] | 
|  | pfmax	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfmin %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0x94] | 
|  | pfmin	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfmul %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0xb4] | 
|  | pfmul	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfrcp %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0x96] | 
|  | pfrcp	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfrcpit1 %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0xa6] | 
|  | pfrcpit1	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfrcpit2 %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0xb6] | 
|  | pfrcpit2	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfrsqit1 %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0xa7] | 
|  | pfrsqit1	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfrsqrt %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0x97] | 
|  | pfrsqrt	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfsub %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0x9a] | 
|  | pfsub	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfsubr %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0xaa] | 
|  | pfsubr	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pi2fd %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0x0d] | 
|  | pi2fd	%mm2, %mm1 | 
|  |  | 
|  | // CHECK: pmulhrw %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0xb7] | 
|  | pmulhrw	%mm2, %mm1 | 
|  |  | 
|  |  | 
|  | // CHECK: femms # encoding: [0x0f,0x0e] | 
|  | femms | 
|  |  | 
|  | // CHECK: prefetch (%rax)   # encoding: [0x0f,0x0d,0x00] | 
|  | // CHECK: prefetchw (%rax)  # encoding: [0x0f,0x0d,0x08] | 
|  | prefetch (%rax) | 
|  | prefetchw (%rax) | 
|  |  | 
|  |  | 
|  | // CHECK: pf2iw %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0x1c] | 
|  | pf2iw %mm2, %mm1 | 
|  |  | 
|  | // CHECK: pi2fw %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0x0c] | 
|  | pi2fw %mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfnacc %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0x8a] | 
|  | pfnacc %mm2, %mm1 | 
|  |  | 
|  | // CHECK: pfpnacc %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0x8e] | 
|  | pfpnacc %mm2, %mm1 | 
|  |  | 
|  | // CHECK: pswapd %mm2, %mm1  # encoding: [0x0f,0x0f,0xca,0xbb] | 
|  | pswapd %mm2, %mm1 |