Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
; RUN: llc < %s -mtriple=arm64-apple-darwin -O0 -fast-isel | FileCheck %s ; CHECK: b _foo0 define i32 @foo1() { entry: %call = tail call i32 @foo0() ret i32 %call } declare i32 @foo0()