Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
; RUN: llc -verify-machineinstrs < %s | grep 'foo bar":' target datalayout = "E-p:32:32" target triple = "powerpc-unknown-linux-gnu.2.0" @"foo bar" = global i32 4 ; <i32*> [#uses=0]