Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

2008-01-11-VarargAttrs.ll
; RUN: llvm-as < %s | llvm-dis | grep byval
; RUN: verify-uselistorder %s

	%struct = type {  }

declare void @foo(...)

define void @bar() {
	call void (...) @foo(%struct* byval(%struct) null )
	ret void
}