Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

2007-12-21-InvokeParamAttrs.ll
; RUN: not llvm-as < %s > /dev/null 2>&1

declare void @foo(i8*)

define void @bar() {
	invoke void @foo(i8* signext null)
			to label %r unwind label %r
r:
	ret void
}