1@ RUN: not llvm-mc -triple armv8-none-eabi -mcpu=cortex-r52 -mattr=-dfb -show-encoding < %s 2>&1 | FileCheck %s 2@ RUN: not llvm-mc -triple thumbv8-none-eabi -mcpu=cortex-r52 -mattr=-dfb -show-encoding < %s 2>&1 | FileCheck %s 3@ RUN: not llvm-mc -triple armv8-none-eabi -mcpu=cortex-r52plus -mattr=-dfb -show-encoding < %s 2>&1 | FileCheck %s 4@ RUN: not llvm-mc -triple thumbv8-none-eabi -mcpu=cortex-r52plus -mattr=-dfb -show-encoding < %s 2>&1 | FileCheck %s 5 6 dfb 7@ CHECK: error: instruction requires: full-data-barrier 8 9 dfb sy 10 dfb #0 11@ CHECK: error: invalid instruction 12@ CHECK: error: invalid instruction 13