| # RUN: llvm-mc -triple=thumbv8 -mattr=+sb -disassemble < %s | FileCheck %s | |
| # RUN: llvm-mc -triple=thumbv8 -mattr=+v8.5a -disassemble < %s | FileCheck %s | |
| # RUN: llvm-mc -triple=thumbv8 -mattr=-sb -disassemble < %s 2>&1 | FileCheck %s --check-prefix=NOSB | |
| 0xbf 0xf3 0x70 0x8f | |
| # CHECK: sb | |
| # NOSB: invalid instruction encoding | |
| # NOSB-NEXT: 0xbf 0xf3 0x70 0x8f |