@hex:
  # See https://code.google.com/p/nativeclient/issues/detail?id=3356
  # crc32w %ax,%eax
  66 f2 0f 38 f1 c0
  90
  90
  90
  90
  90
  90
@nval:
  VALIDATOR: 0: Bad prefix usage
  VALIDATOR: 0: Undefined instruction
  *** <input> IS UNSAFE ***
@dis:
  00000000: 66 f2 0f 38 f1 c0                            crc32 %eax, %ax
  00000006: 90                                           nop
  00000007: 90                                           nop
  00000008: 90                                           nop
  00000009: 90                                           nop
  0000000a: 90                                           nop
  0000000b: 90                                           nop
@rdfa_output:
  0: [0] unrecognized instruction
  return code: 1
----------------------------------------------------------------------
@hex:
  # crc32w %eax,%eax
  f2 0f 38 f1 c0
@nval:
  *** <input> is safe ***
@dis:
  00000000: f2 0f 38 f1 c0                               crc32 %eax, %eax
@rdfa_output:
  return code: 0