Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

tailcc-structret.ll
; RUN: llc < %s -mtriple=i686-unknown-linux | FileCheck %s
define tailcc { ptr, ptr} @init({ ptr, ptr}, i32) {
entry:
      %2 = tail call tailcc { ptr, ptr } @init({ ptr, ptr} %0, i32 %1)
      ret { ptr, ptr} %2
; CHECK: jmp init
}