Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

llvm.amdgcn.ds.ordered.add.gfx10.ll
; RUN: llc -global-isel -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs -show-mc-encoding < %S/../llvm.amdgcn.ds.ordered.add.gfx10.ll | FileCheck -check-prefixes=GCN %S/../llvm.amdgcn.ds.ordered.add.gfx10.ll
; RUN: llc -global-isel -march=amdgcn -mcpu=gfx1100 -verify-machineinstrs -show-mc-encoding < %S/../llvm.amdgcn.ds.ordered.add.gfx10.ll | FileCheck -check-prefixes=GCN %S/../llvm.amdgcn.ds.ordered.add.gfx10.ll