Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
# RUN: llvm-mc -triple aarch64-none-linux-gnu --disassemble < %s | FileCheck %s [0x9f,0x22,0x03,0xd5] [0x9f,0x30,0x03,0xd5] [0x9f,0x34,0x03,0xd5] # CHECK: csdb # CHECK-NEXT: ssbb # CHECK-NEXT: pssbb