1# RUN: llvm-mc --disassemble %s -triple=s390x-linux-gnu 2>&1 | FileCheck %s
2# If the top bits are 0b10, the instruction must be 4 bytes long.
3# CHECK: warning: invalid instruction encoding
4# CHECK-NEXT: 0xb9 0x08 0x00
50xb9 0x08 0x00
6