Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

set-virt-directive.s
# RUN: llvm-mc %s -show-encoding -triple=mips-unknown-linux-gnu \
# RUN:   -mcpu=mips32r5 | FileCheck %s
# RUN: llvm-mc %s -show-encoding -triple=mips64-unknown-linux-gnu \
# RUN:   -mcpu=mips64r5 | FileCheck %s

  .set virt
  hypcall  # CHECK: hypcall # encoding: [0x42,0x00,0x00,0x28]