Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

SNP-32.s
// RUN: llvm-mc -triple i386-unknown-unknown --show-encoding %s | FileCheck %s

// CHECK: pvalidate
// CHECK: encoding: [0xf2,0x0f,0x01,0xff]
pvalidate

// CHECK: pvalidate
// CHECK: encoding: [0xf2,0x0f,0x01,0xff]
pvalidate	%eax