Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

speculation-barriers.s
// RUN: llvm-mc -triple aarch64-none-linux-gnu -show-encoding < %s | FileCheck %s

csdb
ssbb
pssbb

// CHECK: csdb   // encoding: [0x9f,0x22,0x03,0xd5]
// CHECK: ssbb   // encoding: [0x9f,0x30,0x03,0xd5]
// CHECK: pssbb  // encoding: [0x9f,0x34,0x03,0xd5]