Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
# RUN: not llvm-mc -arch=hexagon -filetype=obj -mv5 %s 2>&1 | FileCheck %s # CHECK: 4:1: error: Cannot write to read-only register `PC' pc = r0 # CHECK: 7:1: error: Cannot write to read-only register `PC' c9 = r0