test/MC/ARM/crc32.s

   1 @ RUN: llvm-mc -triple=armv8 -show-encoding < %s | FileCheck %s
   2 @ RUN: not llvm-mc -triple=armv7 -show-encoding < %s 2>&1 | FileCheck %s --check-prefix=CHECK-V7
   3         crc32b  r0, r1, r2
   4         crc32h  r0, r1, r2
   5         crc32w  r0, r1, r2
   6
   7 @ CHECK:  crc32b    r0, r1, r2              @ encoding: [0x42,0x00,0x01,0xe1]
   8 @ CHECK:  crc32h    r0, r1, r2              @ encoding: [0x42,0x00,0x21,0xe1]
   9 @ CHECK:  crc32w    r0, r1, r2              @ encoding: [0x42,0x00,0x41,0xe1]
  10 @ CHECK-V7: error: instruction requires: armv8
  11 @ CHECK-V7: error: instruction requires: armv8
  12 @ CHECK-V7: error: instruction requires: armv8
  13
  14         crc32cb  r0, r1, r2
  15         crc32ch  r0, r1, r2
  16         crc32cw  r0, r1, r2
  17
  18 @ CHECK:  crc32cb   r0, r1, r2              @ encoding: [0x42,0x02,0x01,0xe1]
  19 @ CHECK:  crc32ch   r0, r1, r2              @ encoding: [0x42,0x02,0x21,0xe1]
  20 @ CHECK:  crc32cw   r0, r1, r2              @ encoding: [0x42,0x02,0x41,0xe1]
  21 @ CHECK-V7: error: instruction requires: armv8
  22 @ CHECK-V7: error: instruction requires: armv8
  23 @ CHECK-V7: error: instruction requires: armv8