Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

insertvalue-invalid-idx.ll
; RUN: not llvm-as < %s 2>&1 | FileCheck %s

; CHECK: invalid indices for insertvalue

define void @test() {
entry:
  insertvalue [0 x i32] undef, i32 0, 0
  ret void
}