Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

thumb-stub.ll
; RUN: llc  -relocation-model=pic -mtriple=thumb-apple-darwin < %s | FileCheck %s

declare hidden void @f()

; CHECK: bl _f

define void @g() {
  call void @f()
  ret void
}