Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

cmpyrw.s
# RUN: llvm-mc -arch=hexagon -mv67t -filetype=obj %s | llvm-objdump --mcpu=hexagonv67t --mattr=+audio -d - | FileCheck %s
r23:22 = cmpyrw(r15:14,r21:20*)
# CHECK:   r23:22 = cmpyrw(r15:14,r21:20*)