Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

rv32e.ll
; RUN: not --crash llc -mtriple=riscv32 -mattr=+e < %s 2>&1 | FileCheck %s

; CHECK: LLVM ERROR: Codegen not yet implemented for RV32E

define void @nothing() nounwind {
  ret void
}