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      1 @ RUN: llvm-mc -triple=thumbv8 -show-encoding < %s | FileCheck %s
      2 @ RUN: not llvm-mc -triple=thumbv7 -show-encoding < %s 2>&1 | FileCheck %s --check-prefix=CHECK-V7
      3 @ RUN: not llvm-mc -triple=thumbv8 -mattr=-crc -show-encoding < %s 2>&1 | FileCheck %s --check-prefix=CHECK-NOCRC
      4         crc32b  r0, r1, r2
      5         crc32h  r0, r1, r2
      6         crc32w  r0, r1, r2
      7 
      8 @ CHECK:  crc32b    r0, r1, r2              @ encoding: [0xc1,0xfa,0x82,0xf0]
      9 @ CHECK:  crc32h    r0, r1, r2              @ encoding: [0xc1,0xfa,0x92,0xf0]
     10 @ CHECK:  crc32w    r0, r1, r2              @ encoding: [0xc1,0xfa,0xa2,0xf0]
     11 @ CHECK-V7: error: instruction requires: crc armv8
     12 @ CHECK-V7: error: instruction requires: crc armv8
     13 @ CHECK-V7: error: instruction requires: crc armv8
     14 @ CHECK-NOCRC: error: instruction requires: crc
     15 @ CHECK-NOCRC: error: instruction requires: crc
     16 @ CHECK-NOCRC: error: instruction requires: crc
     17 
     18         crc32cb  r0, r1, r2
     19         crc32ch  r0, r1, r2
     20         crc32cw  r0, r1, r2
     21 
     22 @ CHECK:  crc32cb   r0, r1, r2              @ encoding: [0xd1,0xfa,0x82,0xf0]
     23 @ CHECK:  crc32ch   r0, r1, r2              @ encoding: [0xd1,0xfa,0x92,0xf0]
     24 @ CHECK:  crc32cw   r0, r1, r2              @ encoding: [0xd1,0xfa,0xa2,0xf0]
     25 @ CHECK-V7: error: instruction requires: crc armv8
     26 @ CHECK-V7: error: instruction requires: crc armv8
     27 @ CHECK-V7: error: instruction requires: crc armv8
     28 @ CHECK-NOCRC: error: instruction requires: crc
     29 @ CHECK-NOCRC: error: instruction requires: crc
     30 @ CHECK-NOCRC: error: instruction requires: crc
     31