Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
;RUN: opt -disable-output -passes=loop-interchange -print-after-all < %s 2>&1 | FileCheck %s ; CHECK: IR Dump After LoopInterchangePass define void @foo() { entry: br label %for.cond for.cond: br label %for.cond }