Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

arguments4.ll
; RUN: llc < %s -mtriple=arm-linux-gnueabi
; RUN: llc < %s -mtriple=arm-apple-darwin

define float @f(i32 %a, i128 %b) {
        %tmp = call float @g(i128 %b)
        ret float %tmp
}

declare float @g(i128)