Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
# RUN: llvm-mc < %s --triple x86_64-apple-darwin -filetype=obj | llvm-objdump --macho -d - | FileCheck %s nop x: leal x-y(%eax), %ebx .data y: .quad 0 # CHECK: leal x-y(%eax), %ebx