Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

ConstraintChecking1.td
// RUN: not llvm-tblgen -gen-asm-writer -I %p -I %p/../../include %s 2>&1 | FileCheck %s -DFILE=%s

include "ConstraintChecking.inc"

// CHECK: [[FILE]]:[[@LINE+1]]:1: error: Unrecognized constraint '$dest1 ~ $src2' in 'Foo'
def Foo : TestInstructionWithConstraints<"$dest1 ~ $src2">;