| @ RUN: not llvm-mc -triple armv8-none-eabi -mcpu=cortex-r52 -mattr=-dfb -show-encoding < %s 2>&1 | FileCheck %s | |
| @ RUN: not llvm-mc -triple thumbv8-none-eabi -mcpu=cortex-r52 -mattr=-dfb -show-encoding < %s 2>&1 | FileCheck %s | |
| dfb | |
| @ CHECK: error: instruction requires: full-data-barrier | |
| dfb sy | |
| dfb #0 | |
| @ CHECK: error: invalid instruction | |
| @ CHECK: error: invalid instruction |