Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
# RUN: not --crash llvm-mc -arch=amdgcn -mcpu=tahiti -disassemble < %s 2>&1 | FileCheck %s # CHECK: LLVM ERROR: Disassembly not yet supported for subtarget 0x00 0x00 0x00 0x7e