Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

aarch64-empty.ll
; REQUIRES: aarch64-registered-target

; RUN: echo > %t
; RUN: llvm-isel-fuzzer %t -ignore_remaining_args=1 -mtriple aarch64 2>&1 | FileCheck %s

; CHECK: Running