@ RUN: not llvm-mc -triple armv8-eabi -filetype asm -o /dev/null %s 2>&1 | FileCheck %s @ Ensure that a mode switch does not revert the architectural features that were @ alternated explicitly. .syntax unified .arch_extension noidiv .arm udiv r0, r0, r1 @ CHECK: instruction requires: divide in ARM .thumb udiv r0, r0, r1 @ CHECK: instruction requires: divide in THUMB